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0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyCallstack.cpp | #include <limits>
#include <new>
#include <stdio.h>
#include <string.h>
#include "TracyCallstack.hpp"
#include "TracyFastVector.hpp"
#include "TracyStringHelpers.hpp"
#include "../common/TracyAlloc.hpp"
#include "TracyDebug.hpp"
#ifdef TRACY_HAS_CALLSTACK
#if TRACY_HAS_CALLSTACK == 1
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
# include <psapi.h>
# include <algorithm>
# ifdef _MSC_VER
# pragma warning( push )
# pragma warning( disable : 4091 )
# endif
# include <dbghelp.h>
# ifdef _MSC_VER
# pragma warning( pop )
# endif
#elif TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 6
# include "../libbacktrace/backtrace.hpp"
# include <algorithm>
# include <dlfcn.h>
# include <cxxabi.h>
# include <stdlib.h>
# include "TracyFastVector.hpp"
#elif TRACY_HAS_CALLSTACK == 5
# include <dlfcn.h>
# include <cxxabi.h>
#endif
#ifdef TRACY_DBGHELP_LOCK
# include "TracyProfiler.hpp"
# define DBGHELP_INIT TracyConcat( TRACY_DBGHELP_LOCK, Init() )
# define DBGHELP_LOCK TracyConcat( TRACY_DBGHELP_LOCK, Lock() );
# define DBGHELP_UNLOCK TracyConcat( TRACY_DBGHELP_LOCK, Unlock() );
extern "C"
{
void DBGHELP_INIT;
void DBGHELP_LOCK;
void DBGHELP_UNLOCK;
};
#endif
#if TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 5 || TRACY_HAS_CALLSTACK == 6
// If you want to use your own demangling functionality (e.g. for another language),
// define TRACY_DEMANGLE and provide your own implementation of the __tracy_demangle
// function. The input parameter is a function name. The demangle function must
// identify whether this name is mangled, and fail if it is not. Failure is indicated
// by returning nullptr. If demangling succeeds, a pointer to the C string containing
// demangled function must be returned. The demangling function is responsible for
// managing memory for this string. It is expected that it will be internally reused.
// When a call to ___tracy_demangle is made, previous contents of the string memory
// do not need to be preserved. Function may return string of any length, but the
// profiler can choose to truncate it.
extern "C" const char* ___tracy_demangle( const char* mangled );
#ifndef TRACY_DEMANGLE
constexpr size_t ___tracy_demangle_buffer_len = 1024*1024;
char* ___tracy_demangle_buffer;
void ___tracy_init_demangle_buffer()
{
___tracy_demangle_buffer = (char*)tracy::tracy_malloc( ___tracy_demangle_buffer_len );
}
void ___tracy_free_demangle_buffer()
{
tracy::tracy_free( ___tracy_demangle_buffer );
}
extern "C" const char* ___tracy_demangle( const char* mangled )
{
if( !mangled || mangled[0] != '_' ) return nullptr;
if( strlen( mangled ) > ___tracy_demangle_buffer_len ) return nullptr;
int status;
size_t len = ___tracy_demangle_buffer_len;
return abi::__cxa_demangle( mangled, ___tracy_demangle_buffer, &len, &status );
}
#endif
#endif
namespace tracy
{
#if TRACY_HAS_CALLSTACK == 1
enum { MaxCbTrace = 64 };
enum { MaxNameSize = 8*1024 };
int cb_num;
CallstackEntry cb_data[MaxCbTrace];
extern "C"
{
typedef DWORD (__stdcall *t_SymAddrIncludeInlineTrace)( HANDLE hProcess, DWORD64 Address );
typedef BOOL (__stdcall *t_SymQueryInlineTrace)( HANDLE hProcess, DWORD64 StartAddress, DWORD StartContext, DWORD64 StartRetAddress, DWORD64 CurAddress, LPDWORD CurContext, LPDWORD CurFrameIndex );
typedef BOOL (__stdcall *t_SymFromInlineContext)( HANDLE hProcess, DWORD64 Address, ULONG InlineContext, PDWORD64 Displacement, PSYMBOL_INFO Symbol );
typedef BOOL (__stdcall *t_SymGetLineFromInlineContext)( HANDLE hProcess, DWORD64 qwAddr, ULONG InlineContext, DWORD64 qwModuleBaseAddress, PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line64 );
TRACY_API ___tracy_t_RtlWalkFrameChain ___tracy_RtlWalkFrameChain = 0;
t_SymAddrIncludeInlineTrace _SymAddrIncludeInlineTrace = 0;
t_SymQueryInlineTrace _SymQueryInlineTrace = 0;
t_SymFromInlineContext _SymFromInlineContext = 0;
t_SymGetLineFromInlineContext _SymGetLineFromInlineContext = 0;
}
struct ModuleCache
{
uint64_t start;
uint64_t end;
char* name;
};
static FastVector<ModuleCache>* s_modCache;
struct KernelDriver
{
uint64_t addr;
const char* mod;
const char* path;
};
KernelDriver* s_krnlCache = nullptr;
size_t s_krnlCacheCnt;
void InitCallstackCritical()
{
___tracy_RtlWalkFrameChain = (___tracy_t_RtlWalkFrameChain)GetProcAddress( GetModuleHandleA( "ntdll.dll" ), "RtlWalkFrameChain" );
}
void InitCallstack()
{
_SymAddrIncludeInlineTrace = (t_SymAddrIncludeInlineTrace)GetProcAddress( GetModuleHandleA( "dbghelp.dll" ), "SymAddrIncludeInlineTrace" );
_SymQueryInlineTrace = (t_SymQueryInlineTrace)GetProcAddress( GetModuleHandleA( "dbghelp.dll" ), "SymQueryInlineTrace" );
_SymFromInlineContext = (t_SymFromInlineContext)GetProcAddress( GetModuleHandleA( "dbghelp.dll" ), "SymFromInlineContext" );
_SymGetLineFromInlineContext = (t_SymGetLineFromInlineContext)GetProcAddress( GetModuleHandleA( "dbghelp.dll" ), "SymGetLineFromInlineContext" );
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_INIT;
DBGHELP_LOCK;
#endif
SymInitialize( GetCurrentProcess(), nullptr, true );
SymSetOptions( SYMOPT_LOAD_LINES );
DWORD needed;
LPVOID dev[4096];
if( EnumDeviceDrivers( dev, sizeof(dev), &needed ) != 0 )
{
char windir[MAX_PATH];
if( !GetWindowsDirectoryA( windir, sizeof( windir ) ) ) memcpy( windir, "c:\\windows", 11 );
const auto windirlen = strlen( windir );
const auto sz = needed / sizeof( LPVOID );
s_krnlCache = (KernelDriver*)tracy_malloc( sizeof(KernelDriver) * sz );
int cnt = 0;
for( size_t i=0; i<sz; i++ )
{
char fn[MAX_PATH];
const auto len = GetDeviceDriverBaseNameA( dev[i], fn, sizeof( fn ) );
if( len != 0 )
{
auto buf = (char*)tracy_malloc_fast( len+3 );
buf[0] = '<';
memcpy( buf+1, fn, len );
memcpy( buf+len+1, ">", 2 );
s_krnlCache[cnt] = KernelDriver { (uint64_t)dev[i], buf };
const auto len = GetDeviceDriverFileNameA( dev[i], fn, sizeof( fn ) );
if( len != 0 )
{
char full[MAX_PATH];
char* path = fn;
if( memcmp( fn, "\\SystemRoot\\", 12 ) == 0 )
{
memcpy( full, windir, windirlen );
strcpy( full + windirlen, fn + 11 );
path = full;
}
SymLoadModuleEx( GetCurrentProcess(), nullptr, path, nullptr, (DWORD64)dev[i], 0, nullptr, 0 );
const auto psz = strlen( path );
auto pptr = (char*)tracy_malloc_fast( psz+1 );
memcpy( pptr, path, psz );
pptr[psz] = '\0';
s_krnlCache[cnt].path = pptr;
}
cnt++;
}
}
s_krnlCacheCnt = cnt;
std::sort( s_krnlCache, s_krnlCache + s_krnlCacheCnt, []( const KernelDriver& lhs, const KernelDriver& rhs ) { return lhs.addr > rhs.addr; } );
}
s_modCache = (FastVector<ModuleCache>*)tracy_malloc( sizeof( FastVector<ModuleCache> ) );
new(s_modCache) FastVector<ModuleCache>( 512 );
HANDLE proc = GetCurrentProcess();
HMODULE mod[1024];
if( EnumProcessModules( proc, mod, sizeof( mod ), &needed ) != 0 )
{
const auto sz = needed / sizeof( HMODULE );
for( size_t i=0; i<sz; i++ )
{
MODULEINFO info;
if( GetModuleInformation( proc, mod[i], &info, sizeof( info ) ) != 0 )
{
const auto base = uint64_t( info.lpBaseOfDll );
char name[1024];
const auto res = GetModuleFileNameA( mod[i], name, 1021 );
if( res > 0 )
{
auto ptr = name + res;
while( ptr > name && *ptr != '\\' && *ptr != '/' ) ptr--;
if( ptr > name ) ptr++;
const auto namelen = name + res - ptr;
auto cache = s_modCache->push_next();
cache->start = base;
cache->end = base + info.SizeOfImage;
cache->name = (char*)tracy_malloc_fast( namelen+3 );
cache->name[0] = '[';
memcpy( cache->name+1, ptr, namelen );
cache->name[namelen+1] = ']';
cache->name[namelen+2] = '\0';
}
}
}
}
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_UNLOCK;
#endif
}
void EndCallstack()
{
}
const char* DecodeCallstackPtrFast( uint64_t ptr )
{
static char ret[MaxNameSize];
const auto proc = GetCurrentProcess();
char buf[sizeof( SYMBOL_INFO ) + MaxNameSize];
auto si = (SYMBOL_INFO*)buf;
si->SizeOfStruct = sizeof( SYMBOL_INFO );
si->MaxNameLen = MaxNameSize;
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_LOCK;
#endif
if( SymFromAddr( proc, ptr, nullptr, si ) == 0 )
{
*ret = '\0';
}
else
{
memcpy( ret, si->Name, si->NameLen );
ret[si->NameLen] = '\0';
}
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_UNLOCK;
#endif
return ret;
}
const char* GetKernelModulePath( uint64_t addr )
{
assert( addr >> 63 != 0 );
if( !s_krnlCache ) return nullptr;
auto it = std::lower_bound( s_krnlCache, s_krnlCache + s_krnlCacheCnt, addr, []( const KernelDriver& lhs, const uint64_t& rhs ) { return lhs.addr > rhs; } );
if( it == s_krnlCache + s_krnlCacheCnt ) return nullptr;
return it->path;
}
static const char* GetModuleNameAndPrepareSymbols( uint64_t addr )
{
if( ( addr >> 63 ) != 0 )
{
if( s_krnlCache )
{
auto it = std::lower_bound( s_krnlCache, s_krnlCache + s_krnlCacheCnt, addr, []( const KernelDriver& lhs, const uint64_t& rhs ) { return lhs.addr > rhs; } );
if( it != s_krnlCache + s_krnlCacheCnt )
{
return it->mod;
}
}
return "<kernel>";
}
for( auto& v : *s_modCache )
{
if( addr >= v.start && addr < v.end )
{
return v.name;
}
}
HMODULE mod[1024];
DWORD needed;
HANDLE proc = GetCurrentProcess();
InitRpmalloc();
if( EnumProcessModules( proc, mod, sizeof( mod ), &needed ) != 0 )
{
const auto sz = needed / sizeof( HMODULE );
for( size_t i=0; i<sz; i++ )
{
MODULEINFO info;
if( GetModuleInformation( proc, mod[i], &info, sizeof( info ) ) != 0 )
{
const auto base = uint64_t( info.lpBaseOfDll );
if( addr >= base && addr < base + info.SizeOfImage )
{
char name[1024];
const auto res = GetModuleFileNameA( mod[i], name, 1021 );
if( res > 0 )
{
// since this is the first time we encounter this module, load its symbols (needed for modules loaded after SymInitialize)
SymLoadModuleEx(proc, NULL, name, NULL, (DWORD64)info.lpBaseOfDll, info.SizeOfImage, NULL, 0);
auto ptr = name + res;
while( ptr > name && *ptr != '\\' && *ptr != '/' ) ptr--;
if( ptr > name ) ptr++;
const auto namelen = name + res - ptr;
auto cache = s_modCache->push_next();
cache->start = base;
cache->end = base + info.SizeOfImage;
cache->name = (char*)tracy_malloc_fast( namelen+3 );
cache->name[0] = '[';
memcpy( cache->name+1, ptr, namelen );
cache->name[namelen+1] = ']';
cache->name[namelen+2] = '\0';
return cache->name;
}
}
}
}
}
return "[unknown]";
}
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr )
{
CallstackSymbolData sym;
IMAGEHLP_LINE64 line;
DWORD displacement = 0;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_LOCK;
#endif
const auto res = SymGetLineFromAddr64( GetCurrentProcess(), ptr, &displacement, &line );
if( res == 0 || line.LineNumber >= 0xF00000 )
{
sym.file = "[unknown]";
sym.line = 0;
sym.needFree = false;
}
else
{
sym.file = CopyString( line.FileName );
sym.line = line.LineNumber;
sym.needFree = true;
}
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_UNLOCK;
#endif
return sym;
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
int write;
const auto proc = GetCurrentProcess();
InitRpmalloc();
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_LOCK;
#endif
const auto moduleName = GetModuleNameAndPrepareSymbols(ptr);
#if !defined TRACY_NO_CALLSTACK_INLINES
BOOL doInline = FALSE;
DWORD ctx = 0;
DWORD inlineNum = 0;
if( _SymAddrIncludeInlineTrace )
{
inlineNum = _SymAddrIncludeInlineTrace( proc, ptr );
if( inlineNum > MaxCbTrace - 1 ) inlineNum = MaxCbTrace - 1;
DWORD idx;
if( inlineNum != 0 ) doInline = _SymQueryInlineTrace( proc, ptr, 0, ptr, ptr, &ctx, &idx );
}
if( doInline )
{
write = inlineNum;
cb_num = 1 + inlineNum;
}
else
#endif
{
write = 0;
cb_num = 1;
}
char buf[sizeof( SYMBOL_INFO ) + MaxNameSize];
auto si = (SYMBOL_INFO*)buf;
si->SizeOfStruct = sizeof( SYMBOL_INFO );
si->MaxNameLen = MaxNameSize;
const auto symValid = SymFromAddr( proc, ptr, nullptr, si ) != 0;
IMAGEHLP_LINE64 line;
DWORD displacement = 0;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
{
const char* filename;
const auto res = SymGetLineFromAddr64( proc, ptr, &displacement, &line );
if( res == 0 || line.LineNumber >= 0xF00000 )
{
filename = "[unknown]";
cb_data[write].line = 0;
}
else
{
filename = line.FileName;
cb_data[write].line = line.LineNumber;
}
cb_data[write].name = symValid ? CopyStringFast( si->Name, si->NameLen ) : CopyStringFast( moduleName );
cb_data[write].file = CopyStringFast( filename );
if( symValid )
{
cb_data[write].symLen = si->Size;
cb_data[write].symAddr = si->Address;
}
else
{
cb_data[write].symLen = 0;
cb_data[write].symAddr = 0;
}
}
#if !defined TRACY_NO_CALLSTACK_INLINES
if( doInline )
{
for( DWORD i=0; i<inlineNum; i++ )
{
auto& cb = cb_data[i];
const auto symInlineValid = _SymFromInlineContext( proc, ptr, ctx, nullptr, si ) != 0;
const char* filename;
if( _SymGetLineFromInlineContext( proc, ptr, ctx, 0, &displacement, &line ) == 0 )
{
filename = "[unknown]";
cb.line = 0;
}
else
{
filename = line.FileName;
cb.line = line.LineNumber;
}
cb.name = symInlineValid ? CopyStringFast( si->Name, si->NameLen ) : CopyStringFast( moduleName );
cb.file = CopyStringFast( filename );
if( symInlineValid )
{
cb.symLen = si->Size;
cb.symAddr = si->Address;
}
else
{
cb.symLen = 0;
cb.symAddr = 0;
}
ctx++;
}
}
#endif
#ifdef TRACY_DBGHELP_LOCK
DBGHELP_UNLOCK;
#endif
return { cb_data, uint8_t( cb_num ), moduleName };
}
#elif TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 6
enum { MaxCbTrace = 64 };
struct backtrace_state* cb_bts;
int cb_num;
CallstackEntry cb_data[MaxCbTrace];
int cb_fixup;
#ifdef TRACY_DEBUGINFOD
debuginfod_client* s_debuginfod;
struct DebugInfo
{
uint8_t* buildid;
size_t buildid_size;
char* filename;
int fd;
};
FastVector<DebugInfo> s_di_known( 16 );
#endif
#ifdef __linux
struct KernelSymbol
{
uint64_t addr;
const char* name;
const char* mod;
};
KernelSymbol* s_kernelSym = nullptr;
size_t s_kernelSymCnt;
static void InitKernelSymbols()
{
FILE* f = fopen( "/proc/kallsyms", "rb" );
if( !f ) return;
tracy::FastVector<KernelSymbol> tmpSym( 1024 );
size_t linelen = 16 * 1024; // linelen must be big enough to prevent reallocs in getline()
auto linebuf = (char*)tracy_malloc( linelen );
ssize_t sz;
while( ( sz = getline( &linebuf, &linelen, f ) ) != -1 )
{
auto ptr = linebuf;
uint64_t addr = 0;
while( *ptr != ' ' )
{
auto v = *ptr;
if( v >= '0' && v <= '9' )
{
v -= '0';
}
else if( v >= 'a' && v <= 'f' )
{
v -= 'a';
v += 10;
}
else if( v >= 'A' && v <= 'F' )
{
v -= 'A';
v += 10;
}
else
{
assert( false );
}
assert( ( v & ~0xF ) == 0 );
addr <<= 4;
addr |= v;
ptr++;
}
if( addr == 0 ) continue;
ptr++;
if( *ptr != 'T' && *ptr != 't' ) continue;
ptr += 2;
const auto namestart = ptr;
while( *ptr != '\t' && *ptr != '\n' ) ptr++;
const auto nameend = ptr;
const char* modstart = nullptr;
const char* modend;
if( *ptr == '\t' )
{
ptr += 2;
modstart = ptr;
while( *ptr != ']' ) ptr++;
modend = ptr;
}
auto strname = (char*)tracy_malloc_fast( nameend - namestart + 1 );
memcpy( strname, namestart, nameend - namestart );
strname[nameend-namestart] = '\0';
char* strmod = nullptr;
if( modstart )
{
strmod = (char*)tracy_malloc_fast( modend - modstart + 1 );
memcpy( strmod, modstart, modend - modstart );
strmod[modend-modstart] = '\0';
}
auto sym = tmpSym.push_next();
sym->addr = addr;
sym->name = strname;
sym->mod = strmod;
}
tracy_free_fast( linebuf );
fclose( f );
if( tmpSym.empty() ) return;
std::sort( tmpSym.begin(), tmpSym.end(), []( const KernelSymbol& lhs, const KernelSymbol& rhs ) { return lhs.addr > rhs.addr; } );
s_kernelSymCnt = tmpSym.size();
s_kernelSym = (KernelSymbol*)tracy_malloc_fast( sizeof( KernelSymbol ) * s_kernelSymCnt );
memcpy( s_kernelSym, tmpSym.data(), sizeof( KernelSymbol ) * s_kernelSymCnt );
TracyDebug( "Loaded %zu kernel symbols\n", s_kernelSymCnt );
}
#endif
char* NormalizePath( const char* path )
{
if( path[0] != '/' ) return nullptr;
const char* ptr = path;
const char* end = path;
while( *end ) end++;
char* res = (char*)tracy_malloc( end - ptr + 1 );
size_t rsz = 0;
while( ptr < end )
{
const char* next = ptr;
while( next < end && *next != '/' ) next++;
size_t lsz = next - ptr;
switch( lsz )
{
case 2:
if( memcmp( ptr, "..", 2 ) == 0 )
{
const char* back = res + rsz - 1;
while( back > res && *back != '/' ) back--;
rsz = back - res;
ptr = next + 1;
continue;
}
break;
case 1:
if( *ptr == '.' )
{
ptr = next + 1;
continue;
}
break;
case 0:
ptr = next + 1;
continue;
}
if( rsz != 1 ) res[rsz++] = '/';
memcpy( res+rsz, ptr, lsz );
rsz += lsz;
ptr = next + 1;
}
if( rsz == 0 )
{
memcpy( res, "/", 2 );
}
else
{
res[rsz] = '\0';
}
return res;
}
void InitCallstackCritical()
{
}
void InitCallstack()
{
cb_bts = backtrace_create_state( nullptr, 0, nullptr, nullptr );
___tracy_init_demangle_buffer();
#ifdef __linux
InitKernelSymbols();
#endif
#ifdef TRACY_DEBUGINFOD
s_debuginfod = debuginfod_begin();
#endif
}
#ifdef TRACY_DEBUGINFOD
void ClearDebugInfoVector( FastVector<DebugInfo>& vec )
{
for( auto& v : vec )
{
tracy_free( v.buildid );
tracy_free( v.filename );
if( v.fd >= 0 ) close( v.fd );
}
vec.clear();
}
DebugInfo* FindDebugInfo( FastVector<DebugInfo>& vec, const uint8_t* buildid_data, size_t buildid_size )
{
for( auto& v : vec )
{
if( v.buildid_size == buildid_size && memcmp( v.buildid, buildid_data, buildid_size ) == 0 )
{
return &v;
}
}
return nullptr;
}
int GetDebugInfoDescriptor( const char* buildid_data, size_t buildid_size, const char* filename )
{
auto buildid = (uint8_t*)buildid_data;
auto it = FindDebugInfo( s_di_known, buildid, buildid_size );
if( it ) return it->fd >= 0 ? dup( it->fd ) : -1;
int fd = debuginfod_find_debuginfo( s_debuginfod, buildid, buildid_size, nullptr );
it = s_di_known.push_next();
it->buildid_size = buildid_size;
it->buildid = (uint8_t*)tracy_malloc( buildid_size );
memcpy( it->buildid, buildid, buildid_size );
const auto fnsz = strlen( filename ) + 1;
it->filename = (char*)tracy_malloc( fnsz );
memcpy( it->filename, filename, fnsz );
it->fd = fd >= 0 ? fd : -1;
TracyDebug( "DebugInfo descriptor query: %i, fn: %s\n", fd, filename );
return it->fd;
}
const uint8_t* GetBuildIdForImage( const char* image, size_t& size )
{
assert( image );
for( auto& v : s_di_known )
{
if( strcmp( image, v.filename ) == 0 )
{
size = v.buildid_size;
return v.buildid;
}
}
return nullptr;
}
debuginfod_client* GetDebuginfodClient()
{
return s_debuginfod;
}
#endif
void EndCallstack()
{
___tracy_free_demangle_buffer();
#ifdef TRACY_DEBUGINFOD
ClearDebugInfoVector( s_di_known );
debuginfod_end( s_debuginfod );
#endif
}
const char* DecodeCallstackPtrFast( uint64_t ptr )
{
static char ret[1024];
auto vptr = (void*)ptr;
const char* symname = nullptr;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) && dlinfo.dli_sname )
{
symname = dlinfo.dli_sname;
}
if( symname )
{
strcpy( ret, symname );
}
else
{
*ret = '\0';
}
return ret;
}
static int SymbolAddressDataCb( void* data, uintptr_t pc, uintptr_t lowaddr, const char* fn, int lineno, const char* function )
{
auto& sym = *(CallstackSymbolData*)data;
if( !fn )
{
sym.file = "[unknown]";
sym.line = 0;
sym.needFree = false;
}
else
{
sym.file = NormalizePath( fn );
if( !sym.file ) sym.file = CopyString( fn );
sym.line = lineno;
sym.needFree = true;
}
return 1;
}
static void SymbolAddressErrorCb( void* data, const char* /*msg*/, int /*errnum*/ )
{
auto& sym = *(CallstackSymbolData*)data;
sym.file = "[unknown]";
sym.line = 0;
sym.needFree = false;
}
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr )
{
CallstackSymbolData sym;
backtrace_pcinfo( cb_bts, ptr, SymbolAddressDataCb, SymbolAddressErrorCb, &sym );
return sym;
}
static int CallstackDataCb( void* /*data*/, uintptr_t pc, uintptr_t lowaddr, const char* fn, int lineno, const char* function )
{
cb_data[cb_num].symLen = 0;
cb_data[cb_num].symAddr = (uint64_t)lowaddr;
if( !fn && !function )
{
const char* symname = nullptr;
auto vptr = (void*)pc;
ptrdiff_t symoff = 0;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) )
{
symname = dlinfo.dli_sname;
symoff = (char*)pc - (char*)dlinfo.dli_saddr;
const char* demangled = ___tracy_demangle( symname );
if( demangled ) symname = demangled;
}
if( !symname ) symname = "[unknown]";
if( symoff == 0 )
{
const auto len = std::min<size_t>( strlen( symname ), std::numeric_limits<uint16_t>::max() );
cb_data[cb_num].name = CopyStringFast( symname, len );
}
else
{
char buf[32];
const auto offlen = sprintf( buf, " + %td", symoff );
const auto namelen = std::min<size_t>( strlen( symname ), std::numeric_limits<uint16_t>::max() - offlen );
auto name = (char*)tracy_malloc_fast( namelen + offlen + 1 );
memcpy( name, symname, namelen );
memcpy( name + namelen, buf, offlen );
name[namelen + offlen] = '\0';
cb_data[cb_num].name = name;
}
cb_data[cb_num].file = CopyStringFast( "[unknown]" );
cb_data[cb_num].line = 0;
}
else
{
if( !fn ) fn = "[unknown]";
if( !function )
{
function = "[unknown]";
}
else
{
const char* demangled = ___tracy_demangle( function );
if( demangled ) function = demangled;
}
const auto len = std::min<size_t>( strlen( function ), std::numeric_limits<uint16_t>::max() );
cb_data[cb_num].name = CopyStringFast( function, len );
cb_data[cb_num].file = NormalizePath( fn );
if( !cb_data[cb_num].file ) cb_data[cb_num].file = CopyStringFast( fn );
cb_data[cb_num].line = lineno;
}
if( ++cb_num >= MaxCbTrace )
{
return 1;
}
else
{
return 0;
}
}
static void CallstackErrorCb( void* /*data*/, const char* /*msg*/, int /*errnum*/ )
{
for( int i=0; i<cb_num; i++ )
{
tracy_free_fast( (void*)cb_data[i].name );
tracy_free_fast( (void*)cb_data[i].file );
}
cb_data[0].name = CopyStringFast( "[error]" );
cb_data[0].file = CopyStringFast( "[error]" );
cb_data[0].line = 0;
cb_num = 1;
}
void SymInfoCallback( void* /*data*/, uintptr_t pc, const char* symname, uintptr_t symval, uintptr_t symsize )
{
cb_data[cb_num-1].symLen = (uint32_t)symsize;
cb_data[cb_num-1].symAddr = (uint64_t)symval;
}
void SymInfoError( void* /*data*/, const char* /*msg*/, int /*errnum*/ )
{
cb_data[cb_num-1].symLen = 0;
cb_data[cb_num-1].symAddr = 0;
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
InitRpmalloc();
if( ptr >> 63 == 0 )
{
cb_num = 0;
backtrace_pcinfo( cb_bts, ptr, CallstackDataCb, CallstackErrorCb, nullptr );
assert( cb_num > 0 );
backtrace_syminfo( cb_bts, ptr, SymInfoCallback, SymInfoError, nullptr );
const char* symloc = nullptr;
Dl_info dlinfo;
if( dladdr( (void*)ptr, &dlinfo ) ) symloc = dlinfo.dli_fname;
return { cb_data, uint8_t( cb_num ), symloc ? symloc : "[unknown]" };
}
#ifdef __linux
else if( s_kernelSym )
{
auto it = std::lower_bound( s_kernelSym, s_kernelSym + s_kernelSymCnt, ptr, []( const KernelSymbol& lhs, const uint64_t& rhs ) { return lhs.addr > rhs; } );
if( it != s_kernelSym + s_kernelSymCnt )
{
cb_data[0].name = CopyStringFast( it->name );
cb_data[0].file = CopyStringFast( "<kernel>" );
cb_data[0].line = 0;
cb_data[0].symLen = 0;
cb_data[0].symAddr = it->addr;
return { cb_data, 1, it->mod ? it->mod : "<kernel>" };
}
}
#endif
cb_data[0].name = CopyStringFast( "[unknown]" );
cb_data[0].file = CopyStringFast( "<kernel>" );
cb_data[0].line = 0;
cb_data[0].symLen = 0;
cb_data[0].symAddr = 0;
return { cb_data, 1, "<kernel>" };
}
#elif TRACY_HAS_CALLSTACK == 5
void InitCallstackCritical()
{
}
void InitCallstack()
{
___tracy_init_demangle_buffer();
}
void EndCallstack()
{
___tracy_free_demangle_buffer();
}
const char* DecodeCallstackPtrFast( uint64_t ptr )
{
static char ret[1024];
auto vptr = (void*)ptr;
const char* symname = nullptr;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) && dlinfo.dli_sname )
{
symname = dlinfo.dli_sname;
}
if( symname )
{
strcpy( ret, symname );
}
else
{
*ret = '\0';
}
return ret;
}
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr )
{
const char* symloc = nullptr;
Dl_info dlinfo;
if( dladdr( (void*)ptr, &dlinfo ) ) symloc = dlinfo.dli_fname;
if( !symloc ) symloc = "[unknown]";
return CallstackSymbolData { symloc, 0, false, 0 };
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
static CallstackEntry cb;
cb.line = 0;
const char* symname = nullptr;
const char* symloc = nullptr;
auto vptr = (void*)ptr;
ptrdiff_t symoff = 0;
void* symaddr = nullptr;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) )
{
symloc = dlinfo.dli_fname;
symname = dlinfo.dli_sname;
symoff = (char*)ptr - (char*)dlinfo.dli_saddr;
symaddr = dlinfo.dli_saddr;
const char* demangled = ___tracy_demangle( symname );
if( demangled ) symname = demangled;
}
if( !symname ) symname = "[unknown]";
if( !symloc ) symloc = "[unknown]";
if( symoff == 0 )
{
const auto len = std::min<size_t>( strlen( symname ), std::numeric_limits<uint16_t>::max() );
cb.name = CopyString( symname, len );
}
else
{
char buf[32];
const auto offlen = sprintf( buf, " + %td", symoff );
const auto namelen = std::min<size_t>( strlen( symname ), std::numeric_limits<uint16_t>::max() - offlen );
auto name = (char*)tracy_malloc( namelen + offlen + 1 );
memcpy( name, symname, namelen );
memcpy( name + namelen, buf, offlen );
name[namelen + offlen] = '\0';
cb.name = name;
}
cb.file = CopyString( "[unknown]" );
cb.symLen = 0;
cb.symAddr = (uint64_t)symaddr;
return { &cb, 1, symloc };
}
#endif
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyProfiler.cpp | #ifdef TRACY_ENABLE
#ifdef _WIN32
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <winsock2.h>
# include <windows.h>
# include <tlhelp32.h>
# include <inttypes.h>
# include <intrin.h>
# include "../common/TracyUwp.hpp"
#else
# include <sys/time.h>
# include <sys/param.h>
#endif
#ifdef _GNU_SOURCE
# include <errno.h>
#endif
#ifdef __linux__
# include <dirent.h>
# include <pthread.h>
# include <sys/types.h>
# include <sys/syscall.h>
#endif
#if defined __APPLE__ || defined BSD
# include <sys/types.h>
# include <sys/sysctl.h>
#endif
#if defined __APPLE__
# include "TargetConditionals.h"
# include <mach-o/dyld.h>
#endif
#ifdef __ANDROID__
# include <sys/mman.h>
# include <sys/system_properties.h>
# include <stdio.h>
# include <stdint.h>
# include <algorithm>
# include <vector>
#endif
#include <algorithm>
#include <assert.h>
#include <atomic>
#include <chrono>
#include <limits>
#include <new>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <thread>
#include "../common/TracyAlign.hpp"
#include "../common/TracyAlloc.hpp"
#include "../common/TracySocket.hpp"
#include "../common/TracySystem.hpp"
#include "../common/TracyYield.hpp"
#include "../common/tracy_lz4.hpp"
#include "tracy_rpmalloc.hpp"
#include "TracyCallstack.hpp"
#include "TracyDebug.hpp"
#include "TracyDxt1.hpp"
#include "TracyScoped.hpp"
#include "TracyProfiler.hpp"
#include "TracyThread.hpp"
#include "TracyArmCpuTable.hpp"
#include "TracySysTrace.hpp"
#include "../tracy/TracyC.h"
#ifdef TRACY_PORT
# ifndef TRACY_DATA_PORT
# define TRACY_DATA_PORT TRACY_PORT
# endif
# ifndef TRACY_BROADCAST_PORT
# define TRACY_BROADCAST_PORT TRACY_PORT
# endif
#endif
#ifdef __APPLE__
# define TRACY_DELAYED_INIT
#else
# ifdef __GNUC__
# define init_order( val ) __attribute__ ((init_priority(val)))
# else
# define init_order(x)
# endif
#endif
#if defined _WIN32
# include <lmcons.h>
extern "C" typedef LONG (WINAPI *t_RtlGetVersion)( PRTL_OSVERSIONINFOW );
extern "C" typedef BOOL (WINAPI *t_GetLogicalProcessorInformationEx)( LOGICAL_PROCESSOR_RELATIONSHIP, PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX, PDWORD );
#else
# include <unistd.h>
# include <limits.h>
#endif
#if defined __linux__
# include <sys/sysinfo.h>
# include <sys/utsname.h>
#endif
#if !defined _WIN32 && ( defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64 )
# include "TracyCpuid.hpp"
#endif
#if !( ( defined _WIN32 && _WIN32_WINNT >= _WIN32_WINNT_VISTA ) || defined __linux__ )
# include <mutex>
#endif
namespace tracy
{
#ifdef __ANDROID__
// Implementation helpers of EnsureReadable(address).
// This is so far only needed on Android, where it is common for libraries to be mapped
// with only executable, not readable, permissions. Typical example (line from /proc/self/maps):
/*
746b63b000-746b6dc000 --xp 00042000 07:48 35 /apex/com.android.runtime/lib64/bionic/libc.so
*/
// See https://github.com/wolfpld/tracy/issues/125 .
// To work around this, we parse /proc/self/maps and we use mprotect to set read permissions
// on any mappings that contain symbols addresses hit by HandleSymbolCodeQuery.
namespace {
// Holds some information about a single memory mapping.
struct MappingInfo {
// Start of address range. Inclusive.
uintptr_t start_address;
// End of address range. Exclusive, so the mapping is the half-open interval
// [start, end) and its length in bytes is `end - start`. As in /proc/self/maps.
uintptr_t end_address;
// Read/Write/Executable permissions.
bool perm_r, perm_w, perm_x;
};
} // anonymous namespace
// Internal implementation helper for LookUpMapping(address).
//
// Parses /proc/self/maps returning a vector<MappingInfo>.
// /proc/self/maps is assumed to be sorted by ascending address, so the resulting
// vector is sorted by ascending address too.
static std::vector<MappingInfo> ParseMappings()
{
std::vector<MappingInfo> result;
FILE* file = fopen( "/proc/self/maps", "r" );
if( !file ) return result;
char line[1024];
while( fgets( line, sizeof( line ), file ) )
{
uintptr_t start_addr;
uintptr_t end_addr;
if( sscanf( line, "%lx-%lx", &start_addr, &end_addr ) != 2 ) continue;
char* first_space = strchr( line, ' ' );
if( !first_space ) continue;
char* perm = first_space + 1;
char* second_space = strchr( perm, ' ' );
if( !second_space || second_space - perm != 4 ) continue;
result.emplace_back();
auto& mapping = result.back();
mapping.start_address = start_addr;
mapping.end_address = end_addr;
mapping.perm_r = perm[0] == 'r';
mapping.perm_w = perm[1] == 'w';
mapping.perm_x = perm[2] == 'x';
}
fclose( file );
return result;
}
// Internal implementation helper for LookUpMapping(address).
//
// Takes as input an `address` and a known vector `mappings`, assumed to be
// sorted by increasing addresses, as /proc/self/maps seems to be.
// Returns a pointer to the MappingInfo describing the mapping that this
// address belongs to, or nullptr if the address isn't in `mappings`.
static MappingInfo* LookUpMapping(std::vector<MappingInfo>& mappings, uintptr_t address)
{
// Comparison function for std::lower_bound. Returns true if all addresses in `m1`
// are lower than `addr`.
auto Compare = []( const MappingInfo& m1, uintptr_t addr ) {
// '<=' because the address ranges are half-open intervals, [start, end).
return m1.end_address <= addr;
};
auto iter = std::lower_bound( mappings.begin(), mappings.end(), address, Compare );
if( iter == mappings.end() || iter->start_address > address) {
return nullptr;
}
return &*iter;
}
// Internal implementation helper for EnsureReadable(address).
//
// Takes as input an `address` and returns a pointer to a MappingInfo
// describing the mapping that this address belongs to, or nullptr if
// the address isn't in any known mapping.
//
// This function is stateful and not reentrant (assumes to be called from
// only one thread). It holds a vector of mappings parsed from /proc/self/maps.
//
// Attempts to react to mappings changes by re-parsing /proc/self/maps.
static MappingInfo* LookUpMapping(uintptr_t address)
{
// Static state managed by this function. Not constant, we mutate that state as
// we turn some mappings readable. Initially parsed once here, updated as needed below.
static std::vector<MappingInfo> s_mappings = ParseMappings();
MappingInfo* mapping = LookUpMapping( s_mappings, address );
if( mapping ) return mapping;
// This address isn't in any known mapping. Try parsing again, maybe
// mappings changed.
s_mappings = ParseMappings();
return LookUpMapping( s_mappings, address );
}
// Internal implementation helper for EnsureReadable(address).
//
// Attempts to make the specified `mapping` readable if it isn't already.
// Returns true if and only if the mapping is readable.
static bool EnsureReadable( MappingInfo& mapping )
{
if( mapping.perm_r )
{
// The mapping is already readable.
return true;
}
int prot = PROT_READ;
if( mapping.perm_w ) prot |= PROT_WRITE;
if( mapping.perm_x ) prot |= PROT_EXEC;
if( mprotect( reinterpret_cast<void*>( mapping.start_address ),
mapping.end_address - mapping.start_address, prot ) == -1 )
{
// Failed to make the mapping readable. Shouldn't happen, hasn't
// been observed yet. If it happened in practice, we should consider
// adding a bool to MappingInfo to track this to avoid retrying mprotect
// everytime on such mappings.
return false;
}
// The mapping is now readable. Update `mapping` so the next call will be fast.
mapping.perm_r = true;
return true;
}
// Attempts to set the read permission on the entire mapping containing the
// specified address. Returns true if and only if the mapping is now readable.
static bool EnsureReadable( uintptr_t address )
{
MappingInfo* mapping = LookUpMapping(address);
return mapping && EnsureReadable( *mapping );
}
#endif // defined __ANDROID__
#ifndef TRACY_DELAYED_INIT
struct InitTimeWrapper
{
int64_t val;
};
struct ProducerWrapper
{
tracy::moodycamel::ConcurrentQueue<QueueItem>::ExplicitProducer* ptr;
};
struct ThreadHandleWrapper
{
uint32_t val;
};
#endif
#if defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64
static inline void CpuId( uint32_t* regs, uint32_t leaf )
{
memset(regs, 0, sizeof(uint32_t) * 4);
#if defined _WIN32
__cpuidex( (int*)regs, leaf, 0 );
#else
__get_cpuid( leaf, regs, regs+1, regs+2, regs+3 );
#endif
}
static void InitFailure( const char* msg )
{
#if defined _WIN32
bool hasConsole = false;
bool reopen = false;
const auto attached = AttachConsole( ATTACH_PARENT_PROCESS );
if( attached )
{
hasConsole = true;
reopen = true;
}
else
{
const auto err = GetLastError();
if( err == ERROR_ACCESS_DENIED )
{
hasConsole = true;
}
}
if( hasConsole )
{
fprintf( stderr, "Tracy Profiler initialization failure: %s\n", msg );
if( reopen )
{
freopen( "CONOUT$", "w", stderr );
fprintf( stderr, "Tracy Profiler initialization failure: %s\n", msg );
}
}
else
{
# ifndef TRACY_UWP
MessageBoxA( nullptr, msg, "Tracy Profiler initialization failure", MB_ICONSTOP );
# endif
}
#else
fprintf( stderr, "Tracy Profiler initialization failure: %s\n", msg );
#endif
exit( 1 );
}
static bool CheckHardwareSupportsInvariantTSC()
{
const char* noCheck = GetEnvVar( "TRACY_NO_INVARIANT_CHECK" );
if( noCheck && noCheck[0] == '1' ) return true;
uint32_t regs[4];
CpuId( regs, 1 );
if( !( regs[3] & ( 1 << 4 ) ) )
{
#if !defined TRACY_TIMER_QPC && !defined TRACY_TIMER_FALLBACK
InitFailure( "CPU doesn't support RDTSC instruction." );
#else
return false;
#endif
}
CpuId( regs, 0x80000007 );
if( regs[3] & ( 1 << 8 ) ) return true;
return false;
}
#if defined TRACY_TIMER_FALLBACK && defined TRACY_HW_TIMER
bool HardwareSupportsInvariantTSC()
{
static bool cachedResult = CheckHardwareSupportsInvariantTSC();
return cachedResult;
}
#endif
static int64_t SetupHwTimer()
{
#if !defined TRACY_TIMER_QPC && !defined TRACY_TIMER_FALLBACK
if( !CheckHardwareSupportsInvariantTSC() )
{
#if defined _WIN32
InitFailure( "CPU doesn't support invariant TSC.\nDefine TRACY_NO_INVARIANT_CHECK=1 to ignore this error, *if you know what you are doing*.\nAlternatively you may rebuild the application with the TRACY_TIMER_QPC or TRACY_TIMER_FALLBACK define to use lower resolution timer." );
#else
InitFailure( "CPU doesn't support invariant TSC.\nDefine TRACY_NO_INVARIANT_CHECK=1 to ignore this error, *if you know what you are doing*.\nAlternatively you may rebuild the application with the TRACY_TIMER_FALLBACK define to use lower resolution timer." );
#endif
}
#endif
return Profiler::GetTime();
}
#else
static int64_t SetupHwTimer()
{
return Profiler::GetTime();
}
#endif
static const char* GetProcessName()
{
const char* processName = "unknown";
#ifdef _WIN32
static char buf[_MAX_PATH];
GetModuleFileNameA( nullptr, buf, _MAX_PATH );
const char* ptr = buf;
while( *ptr != '\0' ) ptr++;
while( ptr > buf && *ptr != '\\' && *ptr != '/' ) ptr--;
if( ptr > buf ) ptr++;
processName = ptr;
#elif defined __ANDROID__
# if __ANDROID_API__ >= 21
auto buf = getprogname();
if( buf ) processName = buf;
# endif
#elif defined __linux__ && defined _GNU_SOURCE
if( program_invocation_short_name ) processName = program_invocation_short_name;
#elif defined __APPLE__ || defined BSD
auto buf = getprogname();
if( buf ) processName = buf;
#endif
return processName;
}
static const char* GetProcessExecutablePath()
{
#ifdef _WIN32
static char buf[_MAX_PATH];
GetModuleFileNameA( nullptr, buf, _MAX_PATH );
return buf;
#elif defined __ANDROID__
return nullptr;
#elif defined __linux__ && defined _GNU_SOURCE
return program_invocation_name;
#elif defined __APPLE__
static char buf[1024];
uint32_t size = 1024;
_NSGetExecutablePath( buf, &size );
return buf;
#elif defined __DragonFly__
static char buf[1024];
readlink( "/proc/curproc/file", buf, 1024 );
return buf;
#elif defined __FreeBSD__
static char buf[1024];
int mib[4];
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PATHNAME;
mib[3] = -1;
size_t cb = 1024;
sysctl( mib, 4, buf, &cb, nullptr, 0 );
return buf;
#elif defined __NetBSD__
static char buf[1024];
readlink( "/proc/curproc/exe", buf, 1024 );
return buf;
#else
return nullptr;
#endif
}
#if defined __linux__ && defined __ARM_ARCH
static uint32_t GetHex( char*& ptr, int skip )
{
uint32_t ret;
ptr += skip;
char* end;
if( ptr[0] == '0' && ptr[1] == 'x' )
{
ptr += 2;
ret = strtol( ptr, &end, 16 );
}
else
{
ret = strtol( ptr, &end, 10 );
}
ptr = end;
return ret;
}
#endif
static const char* GetHostInfo()
{
static char buf[1024];
auto ptr = buf;
#if defined _WIN32
# ifdef TRACY_UWP
auto GetVersion = &::GetVersionEx;
# else
auto GetVersion = (t_RtlGetVersion)GetProcAddress( GetModuleHandleA( "ntdll.dll" ), "RtlGetVersion" );
# endif
if( !GetVersion )
{
# ifdef __MINGW32__
ptr += sprintf( ptr, "OS: Windows (MingW)\n" );
# else
ptr += sprintf( ptr, "OS: Windows\n" );
# endif
}
else
{
RTL_OSVERSIONINFOW ver = { sizeof( RTL_OSVERSIONINFOW ) };
GetVersion( &ver );
# ifdef __MINGW32__
ptr += sprintf( ptr, "OS: Windows %i.%i.%i (MingW)\n", (int)ver.dwMajorVersion, (int)ver.dwMinorVersion, (int)ver.dwBuildNumber );
# else
ptr += sprintf( ptr, "OS: Windows %i.%i.%i\n", ver.dwMajorVersion, ver.dwMinorVersion, ver.dwBuildNumber );
# endif
}
#elif defined __linux__
struct utsname utsName;
uname( &utsName );
# if defined __ANDROID__
ptr += sprintf( ptr, "OS: Linux %s (Android)\n", utsName.release );
# else
ptr += sprintf( ptr, "OS: Linux %s\n", utsName.release );
# endif
#elif defined __APPLE__
# if TARGET_OS_IPHONE == 1
ptr += sprintf( ptr, "OS: Darwin (iOS)\n" );
# elif TARGET_OS_MAC == 1
ptr += sprintf( ptr, "OS: Darwin (OSX)\n" );
# else
ptr += sprintf( ptr, "OS: Darwin (unknown)\n" );
# endif
#elif defined __DragonFly__
ptr += sprintf( ptr, "OS: BSD (DragonFly)\n" );
#elif defined __FreeBSD__
ptr += sprintf( ptr, "OS: BSD (FreeBSD)\n" );
#elif defined __NetBSD__
ptr += sprintf( ptr, "OS: BSD (NetBSD)\n" );
#elif defined __OpenBSD__
ptr += sprintf( ptr, "OS: BSD (OpenBSD)\n" );
#else
ptr += sprintf( ptr, "OS: unknown\n" );
#endif
#if defined _MSC_VER
# if defined __clang__
ptr += sprintf( ptr, "Compiler: MSVC clang-cl %i.%i.%i\n", __clang_major__, __clang_minor__, __clang_patchlevel__ );
# else
ptr += sprintf( ptr, "Compiler: MSVC %i\n", _MSC_VER );
# endif
#elif defined __clang__
ptr += sprintf( ptr, "Compiler: clang %i.%i.%i\n", __clang_major__, __clang_minor__, __clang_patchlevel__ );
#elif defined __GNUC__
ptr += sprintf( ptr, "Compiler: gcc %i.%i.%i\n", __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__ );
#else
ptr += sprintf( ptr, "Compiler: unknown\n" );
#endif
#if defined _WIN32
InitWinSock();
char hostname[512];
gethostname( hostname, 512 );
# ifdef TRACY_UWP
const char* user = "";
# else
DWORD userSz = UNLEN+1;
char user[UNLEN+1];
GetUserNameA( user, &userSz );
# endif
ptr += sprintf( ptr, "User: %s@%s\n", user, hostname );
#else
char hostname[_POSIX_HOST_NAME_MAX]{};
char user[_POSIX_LOGIN_NAME_MAX]{};
gethostname( hostname, _POSIX_HOST_NAME_MAX );
# if defined __ANDROID__
const auto login = getlogin();
if( login )
{
strcpy( user, login );
}
else
{
memcpy( user, "(?)", 4 );
}
# else
getlogin_r( user, _POSIX_LOGIN_NAME_MAX );
# endif
ptr += sprintf( ptr, "User: %s@%s\n", user, hostname );
#endif
#if defined __i386 || defined _M_IX86
ptr += sprintf( ptr, "Arch: x86\n" );
#elif defined __x86_64__ || defined _M_X64
ptr += sprintf( ptr, "Arch: x64\n" );
#elif defined __aarch64__
ptr += sprintf( ptr, "Arch: ARM64\n" );
#elif defined __ARM_ARCH
ptr += sprintf( ptr, "Arch: ARM\n" );
#else
ptr += sprintf( ptr, "Arch: unknown\n" );
#endif
#if defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64
uint32_t regs[4];
char cpuModel[4*4*3+1] = {};
auto modelPtr = cpuModel;
for( uint32_t i=0x80000002; i<0x80000005; ++i )
{
CpuId( regs, i );
memcpy( modelPtr, regs, sizeof( regs ) ); modelPtr += sizeof( regs );
}
ptr += sprintf( ptr, "CPU: %s\n", cpuModel );
#elif defined __linux__ && defined __ARM_ARCH
bool cpuFound = false;
FILE* fcpuinfo = fopen( "/proc/cpuinfo", "rb" );
if( fcpuinfo )
{
enum { BufSize = 4*1024 };
char buf[BufSize];
const auto sz = fread( buf, 1, BufSize, fcpuinfo );
fclose( fcpuinfo );
const auto end = buf + sz;
auto cptr = buf;
uint32_t impl = 0;
uint32_t var = 0;
uint32_t part = 0;
uint32_t rev = 0;
while( end - cptr > 20 )
{
while( end - cptr > 20 && memcmp( cptr, "CPU ", 4 ) != 0 )
{
cptr += 4;
while( end - cptr > 20 && *cptr != '\n' ) cptr++;
cptr++;
}
if( end - cptr <= 20 ) break;
cptr += 4;
if( memcmp( cptr, "implementer\t: ", 14 ) == 0 )
{
if( impl != 0 ) break;
impl = GetHex( cptr, 14 );
}
else if( memcmp( cptr, "variant\t: ", 10 ) == 0 ) var = GetHex( cptr, 10 );
else if( memcmp( cptr, "part\t: ", 7 ) == 0 ) part = GetHex( cptr, 7 );
else if( memcmp( cptr, "revision\t: ", 11 ) == 0 ) rev = GetHex( cptr, 11 );
while( *cptr != '\n' && *cptr != '\0' ) cptr++;
cptr++;
}
if( impl != 0 || var != 0 || part != 0 || rev != 0 )
{
cpuFound = true;
ptr += sprintf( ptr, "CPU: %s%s r%ip%i\n", DecodeArmImplementer( impl ), DecodeArmPart( impl, part ), var, rev );
}
}
if( !cpuFound )
{
ptr += sprintf( ptr, "CPU: unknown\n" );
}
#elif defined __APPLE__ && TARGET_OS_IPHONE == 1
{
size_t sz;
sysctlbyname( "hw.machine", nullptr, &sz, nullptr, 0 );
auto str = (char*)tracy_malloc( sz );
sysctlbyname( "hw.machine", str, &sz, nullptr, 0 );
ptr += sprintf( ptr, "Device: %s\n", DecodeIosDevice( str ) );
tracy_free( str );
}
#else
ptr += sprintf( ptr, "CPU: unknown\n" );
#endif
#ifdef __ANDROID__
char deviceModel[PROP_VALUE_MAX+1];
char deviceManufacturer[PROP_VALUE_MAX+1];
__system_property_get( "ro.product.model", deviceModel );
__system_property_get( "ro.product.manufacturer", deviceManufacturer );
ptr += sprintf( ptr, "Device: %s %s\n", deviceManufacturer, deviceModel );
#endif
ptr += sprintf( ptr, "CPU cores: %i\n", std::thread::hardware_concurrency() );
#if defined _WIN32
MEMORYSTATUSEX statex;
statex.dwLength = sizeof( statex );
GlobalMemoryStatusEx( &statex );
# ifdef _MSC_VER
ptr += sprintf( ptr, "RAM: %I64u MB\n", statex.ullTotalPhys / 1024 / 1024 );
# else
ptr += sprintf( ptr, "RAM: %llu MB\n", statex.ullTotalPhys / 1024 / 1024 );
# endif
#elif defined __linux__
struct sysinfo sysInfo;
sysinfo( &sysInfo );
ptr += sprintf( ptr, "RAM: %lu MB\n", sysInfo.totalram / 1024 / 1024 );
#elif defined __APPLE__
size_t memSize;
size_t sz = sizeof( memSize );
sysctlbyname( "hw.memsize", &memSize, &sz, nullptr, 0 );
ptr += sprintf( ptr, "RAM: %zu MB\n", memSize / 1024 / 1024 );
#elif defined BSD
size_t memSize;
size_t sz = sizeof( memSize );
sysctlbyname( "hw.physmem", &memSize, &sz, nullptr, 0 );
ptr += sprintf( ptr, "RAM: %zu MB\n", memSize / 1024 / 1024 );
#else
ptr += sprintf( ptr, "RAM: unknown\n" );
#endif
return buf;
}
static uint64_t GetPid()
{
#if defined _WIN32
return uint64_t( GetCurrentProcessId() );
#else
return uint64_t( getpid() );
#endif
}
void Profiler::AckServerQuery()
{
QueueItem item;
MemWrite( &item.hdr.type, QueueType::AckServerQueryNoop );
NeedDataSize( QueueDataSize[(int)QueueType::AckServerQueryNoop] );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::AckServerQueryNoop] );
}
void Profiler::AckSymbolCodeNotAvailable()
{
QueueItem item;
MemWrite( &item.hdr.type, QueueType::AckSymbolCodeNotAvailable );
NeedDataSize( QueueDataSize[(int)QueueType::AckSymbolCodeNotAvailable] );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::AckSymbolCodeNotAvailable] );
}
static BroadcastMessage& GetBroadcastMessage( const char* procname, size_t pnsz, int& len, int port )
{
static BroadcastMessage msg;
msg.broadcastVersion = BroadcastVersion;
msg.protocolVersion = ProtocolVersion;
msg.listenPort = port;
msg.pid = GetPid();
memcpy( msg.programName, procname, pnsz );
memset( msg.programName + pnsz, 0, WelcomeMessageProgramNameSize - pnsz );
len = int( offsetof( BroadcastMessage, programName ) + pnsz + 1 );
return msg;
}
#if defined _WIN32 && !defined TRACY_UWP && !defined TRACY_NO_CRASH_HANDLER
static DWORD s_profilerThreadId = 0;
static DWORD s_symbolThreadId = 0;
static char s_crashText[1024];
LONG WINAPI CrashFilter( PEXCEPTION_POINTERS pExp )
{
if( !GetProfiler().IsConnected() ) return EXCEPTION_CONTINUE_SEARCH;
const unsigned ec = pExp->ExceptionRecord->ExceptionCode;
auto msgPtr = s_crashText;
switch( ec )
{
case EXCEPTION_ACCESS_VIOLATION:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_ACCESS_VIOLATION (0x%x). ", ec );
switch( pExp->ExceptionRecord->ExceptionInformation[0] )
{
case 0:
msgPtr += sprintf( msgPtr, "Read violation at address 0x%" PRIxPTR ".", pExp->ExceptionRecord->ExceptionInformation[1] );
break;
case 1:
msgPtr += sprintf( msgPtr, "Write violation at address 0x%" PRIxPTR ".", pExp->ExceptionRecord->ExceptionInformation[1] );
break;
case 8:
msgPtr += sprintf( msgPtr, "DEP violation at address 0x%" PRIxPTR ".", pExp->ExceptionRecord->ExceptionInformation[1] );
break;
default:
break;
}
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_ARRAY_BOUNDS_EXCEEDED (0x%x). ", ec );
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_DATATYPE_MISALIGNMENT (0x%x). ", ec );
break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_FLT_DIVIDE_BY_ZERO (0x%x). ", ec );
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_ILLEGAL_INSTRUCTION (0x%x). ", ec );
break;
case EXCEPTION_IN_PAGE_ERROR:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_IN_PAGE_ERROR (0x%x). ", ec );
break;
case EXCEPTION_INT_DIVIDE_BY_ZERO:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_INT_DIVIDE_BY_ZERO (0x%x). ", ec );
break;
case EXCEPTION_PRIV_INSTRUCTION:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_PRIV_INSTRUCTION (0x%x). ", ec );
break;
case EXCEPTION_STACK_OVERFLOW:
msgPtr += sprintf( msgPtr, "Exception EXCEPTION_STACK_OVERFLOW (0x%x). ", ec );
break;
default:
return EXCEPTION_CONTINUE_SEARCH;
}
{
GetProfiler().SendCallstack( 60, "KiUserExceptionDispatcher" );
TracyQueuePrepare( QueueType::CrashReport );
item->crashReport.time = Profiler::GetTime();
item->crashReport.text = (uint64_t)s_crashText;
TracyQueueCommit( crashReportThread );
}
HANDLE h = CreateToolhelp32Snapshot( TH32CS_SNAPTHREAD, 0 );
if( h == INVALID_HANDLE_VALUE ) return EXCEPTION_CONTINUE_SEARCH;
THREADENTRY32 te = { sizeof( te ) };
if( !Thread32First( h, &te ) )
{
CloseHandle( h );
return EXCEPTION_CONTINUE_SEARCH;
}
const auto pid = GetCurrentProcessId();
const auto tid = GetCurrentThreadId();
do
{
if( te.th32OwnerProcessID == pid && te.th32ThreadID != tid && te.th32ThreadID != s_profilerThreadId && te.th32ThreadID != s_symbolThreadId )
{
HANDLE th = OpenThread( THREAD_SUSPEND_RESUME, FALSE, te.th32ThreadID );
if( th != INVALID_HANDLE_VALUE )
{
SuspendThread( th );
CloseHandle( th );
}
}
}
while( Thread32Next( h, &te ) );
CloseHandle( h );
{
TracyLfqPrepare( QueueType::Crash );
TracyLfqCommit;
}
std::this_thread::sleep_for( std::chrono::milliseconds( 500 ) );
GetProfiler().RequestShutdown();
while( !GetProfiler().HasShutdownFinished() ) { std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) ); };
return EXCEPTION_CONTINUE_SEARCH;
}
#endif
static Profiler* s_instance = nullptr;
static Thread* s_thread;
#ifndef TRACY_NO_FRAME_IMAGE
static Thread* s_compressThread;
#endif
#ifdef TRACY_HAS_CALLSTACK
static Thread* s_symbolThread;
std::atomic<bool> s_symbolThreadGone { false };
#endif
#ifdef TRACY_HAS_SYSTEM_TRACING
static Thread* s_sysTraceThread = nullptr;
#endif
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
# ifndef TRACY_CRASH_SIGNAL
# define TRACY_CRASH_SIGNAL SIGPWR
# endif
static long s_profilerTid = 0;
static long s_symbolTid = 0;
static char s_crashText[1024];
static std::atomic<bool> s_alreadyCrashed( false );
static void ThreadFreezer( int /*signal*/ )
{
for(;;) sleep( 1000 );
}
static inline void HexPrint( char*& ptr, uint64_t val )
{
if( val == 0 )
{
*ptr++ = '0';
return;
}
static const char HexTable[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
char buf[16];
auto bptr = buf;
do
{
*bptr++ = HexTable[val%16];
val /= 16;
}
while( val > 0 );
do
{
*ptr++ = *--bptr;
}
while( bptr != buf );
}
static void CrashHandler( int signal, siginfo_t* info, void* /*ucontext*/ )
{
bool expected = false;
if( !s_alreadyCrashed.compare_exchange_strong( expected, true ) ) ThreadFreezer( signal );
struct sigaction act = {};
act.sa_handler = SIG_DFL;
sigaction( SIGABRT, &act, nullptr );
auto msgPtr = s_crashText;
switch( signal )
{
case SIGILL:
strcpy( msgPtr, "Illegal Instruction.\n" );
while( *msgPtr ) msgPtr++;
switch( info->si_code )
{
case ILL_ILLOPC:
strcpy( msgPtr, "Illegal opcode.\n" );
break;
case ILL_ILLOPN:
strcpy( msgPtr, "Illegal operand.\n" );
break;
case ILL_ILLADR:
strcpy( msgPtr, "Illegal addressing mode.\n" );
break;
case ILL_ILLTRP:
strcpy( msgPtr, "Illegal trap.\n" );
break;
case ILL_PRVOPC:
strcpy( msgPtr, "Privileged opcode.\n" );
break;
case ILL_PRVREG:
strcpy( msgPtr, "Privileged register.\n" );
break;
case ILL_COPROC:
strcpy( msgPtr, "Coprocessor error.\n" );
break;
case ILL_BADSTK:
strcpy( msgPtr, "Internal stack error.\n" );
break;
default:
break;
}
break;
case SIGFPE:
strcpy( msgPtr, "Floating-point exception.\n" );
while( *msgPtr ) msgPtr++;
switch( info->si_code )
{
case FPE_INTDIV:
strcpy( msgPtr, "Integer divide by zero.\n" );
break;
case FPE_INTOVF:
strcpy( msgPtr, "Integer overflow.\n" );
break;
case FPE_FLTDIV:
strcpy( msgPtr, "Floating-point divide by zero.\n" );
break;
case FPE_FLTOVF:
strcpy( msgPtr, "Floating-point overflow.\n" );
break;
case FPE_FLTUND:
strcpy( msgPtr, "Floating-point underflow.\n" );
break;
case FPE_FLTRES:
strcpy( msgPtr, "Floating-point inexact result.\n" );
break;
case FPE_FLTINV:
strcpy( msgPtr, "Floating-point invalid operation.\n" );
break;
case FPE_FLTSUB:
strcpy( msgPtr, "Subscript out of range.\n" );
break;
default:
break;
}
break;
case SIGSEGV:
strcpy( msgPtr, "Invalid memory reference.\n" );
while( *msgPtr ) msgPtr++;
switch( info->si_code )
{
case SEGV_MAPERR:
strcpy( msgPtr, "Address not mapped to object.\n" );
break;
case SEGV_ACCERR:
strcpy( msgPtr, "Invalid permissions for mapped object.\n" );
break;
# ifdef SEGV_BNDERR
case SEGV_BNDERR:
strcpy( msgPtr, "Failed address bound checks.\n" );
break;
# endif
# ifdef SEGV_PKUERR
case SEGV_PKUERR:
strcpy( msgPtr, "Access was denied by memory protection keys.\n" );
break;
# endif
default:
break;
}
break;
case SIGPIPE:
strcpy( msgPtr, "Broken pipe.\n" );
while( *msgPtr ) msgPtr++;
break;
case SIGBUS:
strcpy( msgPtr, "Bus error.\n" );
while( *msgPtr ) msgPtr++;
switch( info->si_code )
{
case BUS_ADRALN:
strcpy( msgPtr, "Invalid address alignment.\n" );
break;
case BUS_ADRERR:
strcpy( msgPtr, "Nonexistent physical address.\n" );
break;
case BUS_OBJERR:
strcpy( msgPtr, "Object-specific hardware error.\n" );
break;
# ifdef BUS_MCEERR_AR
case BUS_MCEERR_AR:
strcpy( msgPtr, "Hardware memory error consumed on a machine check; action required.\n" );
break;
# endif
# ifdef BUS_MCEERR_AO
case BUS_MCEERR_AO:
strcpy( msgPtr, "Hardware memory error detected in process but not consumed; action optional.\n" );
break;
# endif
default:
break;
}
break;
case SIGABRT:
strcpy( msgPtr, "Abort signal from abort().\n" );
break;
default:
abort();
}
while( *msgPtr ) msgPtr++;
if( signal != SIGPIPE )
{
strcpy( msgPtr, "Fault address: 0x" );
while( *msgPtr ) msgPtr++;
HexPrint( msgPtr, uint64_t( info->si_addr ) );
*msgPtr++ = '\n';
}
{
GetProfiler().SendCallstack( 60, "__kernel_rt_sigreturn" );
TracyQueuePrepare( QueueType::CrashReport );
item->crashReport.time = Profiler::GetTime();
item->crashReport.text = (uint64_t)s_crashText;
TracyQueueCommit( crashReportThread );
}
DIR* dp = opendir( "/proc/self/task" );
if( !dp ) abort();
const auto selfTid = syscall( SYS_gettid );
struct dirent* ep;
while( ( ep = readdir( dp ) ) != nullptr )
{
if( ep->d_name[0] == '.' ) continue;
int tid = atoi( ep->d_name );
if( tid != selfTid && tid != s_profilerTid && tid != s_symbolTid )
{
syscall( SYS_tkill, tid, TRACY_CRASH_SIGNAL );
}
}
closedir( dp );
if( selfTid == s_symbolTid ) s_symbolThreadGone.store( true, std::memory_order_release );
TracyLfqPrepare( QueueType::Crash );
TracyLfqCommit;
std::this_thread::sleep_for( std::chrono::milliseconds( 500 ) );
GetProfiler().RequestShutdown();
while( !GetProfiler().HasShutdownFinished() ) { std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) ); };
abort();
}
#endif
enum { QueuePrealloc = 256 * 1024 };
TRACY_API int64_t GetFrequencyQpc()
{
#if defined _WIN32
LARGE_INTEGER t;
QueryPerformanceFrequency( &t );
return t.QuadPart;
#else
return 0;
#endif
}
#ifdef TRACY_DELAYED_INIT
struct ThreadNameData;
TRACY_API moodycamel::ConcurrentQueue<QueueItem>& GetQueue();
struct ProfilerData
{
int64_t initTime = SetupHwTimer();
moodycamel::ConcurrentQueue<QueueItem> queue;
Profiler profiler;
std::atomic<uint32_t> lockCounter { 0 };
std::atomic<uint8_t> gpuCtxCounter { 0 };
std::atomic<ThreadNameData*> threadNameData { nullptr };
};
struct ProducerWrapper
{
ProducerWrapper( ProfilerData& data ) : detail( data.queue ), ptr( data.queue.get_explicit_producer( detail ) ) {}
moodycamel::ProducerToken detail;
tracy::moodycamel::ConcurrentQueue<QueueItem>::ExplicitProducer* ptr;
};
struct ProfilerThreadData
{
ProfilerThreadData( ProfilerData& data ) : token( data ), gpuCtx( { nullptr } ) {}
ProducerWrapper token;
GpuCtxWrapper gpuCtx;
# ifdef TRACY_ON_DEMAND
LuaZoneState luaZoneState;
# endif
};
std::atomic<int> RpInitDone { 0 };
std::atomic<int> RpInitLock { 0 };
thread_local bool RpThreadInitDone = false;
thread_local bool RpThreadShutdown = false;
# ifdef TRACY_MANUAL_LIFETIME
ProfilerData* s_profilerData = nullptr;
static ProfilerThreadData& GetProfilerThreadData();
TRACY_API void StartupProfiler()
{
s_profilerData = (ProfilerData*)tracy_malloc( sizeof( ProfilerData ) );
new (s_profilerData) ProfilerData();
s_profilerData->profiler.SpawnWorkerThreads();
GetProfilerThreadData().token = ProducerWrapper( *s_profilerData );
}
static ProfilerData& GetProfilerData()
{
assert( s_profilerData );
return *s_profilerData;
}
TRACY_API void ShutdownProfiler()
{
s_profilerData->~ProfilerData();
tracy_free( s_profilerData );
s_profilerData = nullptr;
rpmalloc_finalize();
RpThreadInitDone = false;
RpInitDone.store( 0, std::memory_order_release );
}
# else
static std::atomic<int> profilerDataLock { 0 };
static std::atomic<ProfilerData*> profilerData { nullptr };
static ProfilerData& GetProfilerData()
{
auto ptr = profilerData.load( std::memory_order_acquire );
if( !ptr )
{
int expected = 0;
while( !profilerDataLock.compare_exchange_weak( expected, 1, std::memory_order_release, std::memory_order_relaxed ) ) { expected = 0; YieldThread(); }
ptr = profilerData.load( std::memory_order_acquire );
if( !ptr )
{
ptr = (ProfilerData*)tracy_malloc( sizeof( ProfilerData ) );
new (ptr) ProfilerData();
profilerData.store( ptr, std::memory_order_release );
}
profilerDataLock.store( 0, std::memory_order_release );
}
return *ptr;
}
# endif
// GCC prior to 8.4 had a bug with function-inline thread_local variables. Versions of glibc beginning with
// 2.18 may attempt to work around this issue, which manifests as a crash while running static destructors
// if this function is compiled into a shared object. Unfortunately, centos7 ships with glibc 2.17. If running
// on old GCC, use the old-fashioned way as a workaround
// See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85400
#if !defined(__clang__) && defined(__GNUC__) && ((__GNUC__ < 8) || ((__GNUC__ == 8) && (__GNUC_MINOR__ < 4)))
struct ProfilerThreadDataKey
{
public:
ProfilerThreadDataKey()
{
int val = pthread_key_create(&m_key, sDestructor);
static_cast<void>(val); // unused
assert(val == 0);
}
~ProfilerThreadDataKey()
{
int val = pthread_key_delete(m_key);
static_cast<void>(val); // unused
assert(val == 0);
}
ProfilerThreadData& get()
{
void* p = pthread_getspecific(m_key);
if (!p)
{
p = (ProfilerThreadData*)tracy_malloc( sizeof( ProfilerThreadData ) );
new (p) ProfilerThreadData(GetProfilerData());
pthread_setspecific(m_key, p);
}
return *static_cast<ProfilerThreadData*>(p);
}
private:
pthread_key_t m_key;
static void sDestructor(void* p)
{
((ProfilerThreadData*)p)->~ProfilerThreadData();
tracy_free(p);
}
};
static ProfilerThreadData& GetProfilerThreadData()
{
static ProfilerThreadDataKey key;
return key.get();
}
#else
static ProfilerThreadData& GetProfilerThreadData()
{
thread_local ProfilerThreadData data( GetProfilerData() );
return data;
}
#endif
TRACY_API moodycamel::ConcurrentQueue<QueueItem>::ExplicitProducer* GetToken() { return GetProfilerThreadData().token.ptr; }
TRACY_API Profiler& GetProfiler() { return GetProfilerData().profiler; }
TRACY_API moodycamel::ConcurrentQueue<QueueItem>& GetQueue() { return GetProfilerData().queue; }
TRACY_API int64_t GetInitTime() { return GetProfilerData().initTime; }
TRACY_API std::atomic<uint32_t>& GetLockCounter() { return GetProfilerData().lockCounter; }
TRACY_API std::atomic<uint8_t>& GetGpuCtxCounter() { return GetProfilerData().gpuCtxCounter; }
TRACY_API GpuCtxWrapper& GetGpuCtx() { return GetProfilerThreadData().gpuCtx; }
TRACY_API uint32_t GetThreadHandle() { return detail::GetThreadHandleImpl(); }
std::atomic<ThreadNameData*>& GetThreadNameData() { return GetProfilerData().threadNameData; }
# ifdef TRACY_ON_DEMAND
TRACY_API LuaZoneState& GetLuaZoneState() { return GetProfilerThreadData().luaZoneState; }
# endif
# ifndef TRACY_MANUAL_LIFETIME
namespace
{
const auto& __profiler_init = GetProfiler();
}
# endif
#else
// MSVC static initialization order solution. gcc/clang uses init_order() to avoid all this.
// 1a. But s_queue is needed for initialization of variables in point 2.
extern moodycamel::ConcurrentQueue<QueueItem> s_queue;
// 2. If these variables would be in the .CRT$XCB section, they would be initialized only in main thread.
thread_local moodycamel::ProducerToken init_order(107) s_token_detail( s_queue );
thread_local ProducerWrapper init_order(108) s_token { s_queue.get_explicit_producer( s_token_detail ) };
thread_local ThreadHandleWrapper init_order(104) s_threadHandle { detail::GetThreadHandleImpl() };
# ifdef _MSC_VER
// 1. Initialize these static variables before all other variables.
# pragma warning( disable : 4075 )
# pragma init_seg( ".CRT$XCB" )
# endif
static InitTimeWrapper init_order(101) s_initTime { SetupHwTimer() };
std::atomic<int> init_order(102) RpInitDone( 0 );
std::atomic<int> init_order(102) RpInitLock( 0 );
thread_local bool RpThreadInitDone = false;
thread_local bool RpThreadShutdown = false;
moodycamel::ConcurrentQueue<QueueItem> init_order(103) s_queue( QueuePrealloc );
std::atomic<uint32_t> init_order(104) s_lockCounter( 0 );
std::atomic<uint8_t> init_order(104) s_gpuCtxCounter( 0 );
thread_local GpuCtxWrapper init_order(104) s_gpuCtx { nullptr };
struct ThreadNameData;
static std::atomic<ThreadNameData*> init_order(104) s_threadNameDataInstance( nullptr );
std::atomic<ThreadNameData*>& s_threadNameData = s_threadNameDataInstance;
# ifdef TRACY_ON_DEMAND
thread_local LuaZoneState init_order(104) s_luaZoneState { 0, false };
# endif
static Profiler init_order(105) s_profiler;
TRACY_API moodycamel::ConcurrentQueue<QueueItem>::ExplicitProducer* GetToken() { return s_token.ptr; }
TRACY_API Profiler& GetProfiler() { return s_profiler; }
TRACY_API moodycamel::ConcurrentQueue<QueueItem>& GetQueue() { return s_queue; }
TRACY_API int64_t GetInitTime() { return s_initTime.val; }
TRACY_API std::atomic<uint32_t>& GetLockCounter() { return s_lockCounter; }
TRACY_API std::atomic<uint8_t>& GetGpuCtxCounter() { return s_gpuCtxCounter; }
TRACY_API GpuCtxWrapper& GetGpuCtx() { return s_gpuCtx; }
TRACY_API uint32_t GetThreadHandle() { return s_threadHandle.val; }
std::atomic<ThreadNameData*>& GetThreadNameData() { return s_threadNameData; }
# ifdef TRACY_ON_DEMAND
TRACY_API LuaZoneState& GetLuaZoneState() { return s_luaZoneState; }
# endif
#endif
TRACY_API bool ProfilerAvailable() { return s_instance != nullptr; }
TRACY_API bool ProfilerAllocatorAvailable() { return !RpThreadShutdown; }
Profiler::Profiler()
: m_timeBegin( 0 )
, m_mainThread( detail::GetThreadHandleImpl() )
, m_epoch( std::chrono::duration_cast<std::chrono::seconds>( std::chrono::system_clock::now().time_since_epoch() ).count() )
, m_shutdown( false )
, m_shutdownManual( false )
, m_shutdownFinished( false )
, m_sock( nullptr )
, m_broadcast( nullptr )
, m_noExit( false )
, m_userPort( 0 )
, m_zoneId( 1 )
, m_samplingPeriod( 0 )
, m_stream( LZ4_createStream() )
, m_buffer( (char*)tracy_malloc( TargetFrameSize*3 ) )
, m_bufferOffset( 0 )
, m_bufferStart( 0 )
, m_lz4Buf( (char*)tracy_malloc( LZ4Size + sizeof( lz4sz_t ) ) )
, m_serialQueue( 1024*1024 )
, m_serialDequeue( 1024*1024 )
#ifndef TRACY_NO_FRAME_IMAGE
, m_fiQueue( 16 )
, m_fiDequeue( 16 )
#endif
, m_symbolQueue( 8*1024 )
, m_frameCount( 0 )
, m_isConnected( false )
#ifdef TRACY_ON_DEMAND
, m_connectionId( 0 )
, m_deferredQueue( 64*1024 )
#endif
, m_paramCallback( nullptr )
, m_sourceCallback( nullptr )
, m_queryImage( nullptr )
, m_queryData( nullptr )
, m_crashHandlerInstalled( false )
{
assert( !s_instance );
s_instance = this;
#ifndef TRACY_DELAYED_INIT
# ifdef _MSC_VER
// 3. But these variables need to be initialized in main thread within the .CRT$XCB section. Do it here.
s_token_detail = moodycamel::ProducerToken( s_queue );
s_token = ProducerWrapper { s_queue.get_explicit_producer( s_token_detail ) };
s_threadHandle = ThreadHandleWrapper { m_mainThread };
# endif
#endif
CalibrateTimer();
CalibrateDelay();
ReportTopology();
#ifndef TRACY_NO_EXIT
const char* noExitEnv = GetEnvVar( "TRACY_NO_EXIT" );
if( noExitEnv && noExitEnv[0] == '1' )
{
m_noExit = true;
}
#endif
const char* userPort = GetEnvVar( "TRACY_PORT" );
if( userPort )
{
m_userPort = atoi( userPort );
}
#if !defined(TRACY_DELAYED_INIT) || !defined(TRACY_MANUAL_LIFETIME)
SpawnWorkerThreads();
#endif
}
void Profiler::SpawnWorkerThreads()
{
#ifdef TRACY_HAS_SYSTEM_TRACING
if( SysTraceStart( m_samplingPeriod ) )
{
s_sysTraceThread = (Thread*)tracy_malloc( sizeof( Thread ) );
new(s_sysTraceThread) Thread( SysTraceWorker, nullptr );
std::this_thread::sleep_for( std::chrono::milliseconds( 1 ) );
}
#endif
s_thread = (Thread*)tracy_malloc( sizeof( Thread ) );
new(s_thread) Thread( LaunchWorker, this );
#ifndef TRACY_NO_FRAME_IMAGE
s_compressThread = (Thread*)tracy_malloc( sizeof( Thread ) );
new(s_compressThread) Thread( LaunchCompressWorker, this );
#endif
#ifdef TRACY_HAS_CALLSTACK
s_symbolThread = (Thread*)tracy_malloc( sizeof( Thread ) );
new(s_symbolThread) Thread( LaunchSymbolWorker, this );
#endif
#if defined _WIN32 && !defined TRACY_UWP && !defined TRACY_NO_CRASH_HANDLER
s_profilerThreadId = GetThreadId( s_thread->Handle() );
s_symbolThreadId = GetThreadId( s_symbolThread->Handle() );
m_exceptionHandler = AddVectoredExceptionHandler( 1, CrashFilter );
#endif
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
struct sigaction threadFreezer = {};
threadFreezer.sa_handler = ThreadFreezer;
sigaction( TRACY_CRASH_SIGNAL, &threadFreezer, &m_prevSignal.pwr );
struct sigaction crashHandler = {};
crashHandler.sa_sigaction = CrashHandler;
crashHandler.sa_flags = SA_SIGINFO;
sigaction( SIGILL, &crashHandler, &m_prevSignal.ill );
sigaction( SIGFPE, &crashHandler, &m_prevSignal.fpe );
sigaction( SIGSEGV, &crashHandler, &m_prevSignal.segv );
sigaction( SIGPIPE, &crashHandler, &m_prevSignal.pipe );
sigaction( SIGBUS, &crashHandler, &m_prevSignal.bus );
sigaction( SIGABRT, &crashHandler, &m_prevSignal.abrt );
#endif
#ifndef TRACY_NO_CRASH_HANDLER
m_crashHandlerInstalled = true;
#endif
#ifdef TRACY_HAS_CALLSTACK
InitCallstackCritical();
#endif
m_timeBegin.store( GetTime(), std::memory_order_relaxed );
}
Profiler::~Profiler()
{
m_shutdown.store( true, std::memory_order_relaxed );
#if defined _WIN32 && !defined TRACY_UWP
if( m_crashHandlerInstalled ) RemoveVectoredExceptionHandler( m_exceptionHandler );
#endif
#ifdef __linux__
if( m_crashHandlerInstalled )
{
sigaction( TRACY_CRASH_SIGNAL, &m_prevSignal.pwr, nullptr );
sigaction( SIGILL, &m_prevSignal.ill, nullptr );
sigaction( SIGFPE, &m_prevSignal.fpe, nullptr );
sigaction( SIGSEGV, &m_prevSignal.segv, nullptr );
sigaction( SIGPIPE, &m_prevSignal.pipe, nullptr );
sigaction( SIGBUS, &m_prevSignal.bus, nullptr );
sigaction( SIGABRT, &m_prevSignal.abrt, nullptr );
}
#endif
#ifdef TRACY_HAS_SYSTEM_TRACING
if( s_sysTraceThread )
{
SysTraceStop();
s_sysTraceThread->~Thread();
tracy_free( s_sysTraceThread );
}
#endif
#ifdef TRACY_HAS_CALLSTACK
s_symbolThread->~Thread();
tracy_free( s_symbolThread );
#endif
#ifndef TRACY_NO_FRAME_IMAGE
s_compressThread->~Thread();
tracy_free( s_compressThread );
#endif
s_thread->~Thread();
tracy_free( s_thread );
#ifdef TRACY_HAS_CALLSTACK
EndCallstack();
#endif
tracy_free( m_lz4Buf );
tracy_free( m_buffer );
LZ4_freeStream( (LZ4_stream_t*)m_stream );
if( m_sock )
{
m_sock->~Socket();
tracy_free( m_sock );
}
if( m_broadcast )
{
m_broadcast->~UdpBroadcast();
tracy_free( m_broadcast );
}
assert( s_instance );
s_instance = nullptr;
}
bool Profiler::ShouldExit()
{
return s_instance->m_shutdown.load( std::memory_order_relaxed );
}
void Profiler::Worker()
{
#ifdef __linux__
s_profilerTid = syscall( SYS_gettid );
#endif
ThreadExitHandler threadExitHandler;
SetThreadName( "Tracy Profiler" );
#ifdef TRACY_DATA_PORT
const bool dataPortSearch = false;
auto dataPort = m_userPort != 0 ? m_userPort : TRACY_DATA_PORT;
#else
const bool dataPortSearch = m_userPort == 0;
auto dataPort = m_userPort != 0 ? m_userPort : 8086;
#endif
#ifdef TRACY_BROADCAST_PORT
const auto broadcastPort = TRACY_BROADCAST_PORT;
#else
const auto broadcastPort = 8086;
#endif
while( m_timeBegin.load( std::memory_order_relaxed ) == 0 ) std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
#ifdef TRACY_USE_RPMALLOC
rpmalloc_thread_initialize();
#endif
m_exectime = 0;
const auto execname = GetProcessExecutablePath();
if( execname )
{
struct stat st;
if( stat( execname, &st ) == 0 )
{
m_exectime = (uint64_t)st.st_mtime;
}
}
const auto procname = GetProcessName();
const auto pnsz = std::min<size_t>( strlen( procname ), WelcomeMessageProgramNameSize - 1 );
const auto hostinfo = GetHostInfo();
const auto hisz = std::min<size_t>( strlen( hostinfo ), WelcomeMessageHostInfoSize - 1 );
const uint64_t pid = GetPid();
uint8_t flags = 0;
#ifdef TRACY_ON_DEMAND
flags |= WelcomeFlag::OnDemand;
#endif
#ifdef __APPLE__
flags |= WelcomeFlag::IsApple;
#endif
#ifndef TRACY_NO_CODE_TRANSFER
flags |= WelcomeFlag::CodeTransfer;
#endif
#ifdef _WIN32
flags |= WelcomeFlag::CombineSamples;
# ifndef TRACY_NO_CONTEXT_SWITCH
flags |= WelcomeFlag::IdentifySamples;
# endif
#endif
#if defined __i386 || defined _M_IX86
uint8_t cpuArch = CpuArchX86;
#elif defined __x86_64__ || defined _M_X64
uint8_t cpuArch = CpuArchX64;
#elif defined __aarch64__
uint8_t cpuArch = CpuArchArm64;
#elif defined __ARM_ARCH
uint8_t cpuArch = CpuArchArm32;
#else
uint8_t cpuArch = CpuArchUnknown;
#endif
#if defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64
uint32_t regs[4];
char manufacturer[12];
CpuId( regs, 0 );
memcpy( manufacturer, regs+1, 4 );
memcpy( manufacturer+4, regs+3, 4 );
memcpy( manufacturer+8, regs+2, 4 );
CpuId( regs, 1 );
uint32_t cpuId = ( regs[0] & 0xFFF ) | ( ( regs[0] & 0xFFF0000 ) >> 4 );
#else
const char manufacturer[12] = {};
uint32_t cpuId = 0;
#endif
WelcomeMessage welcome;
MemWrite( &welcome.timerMul, m_timerMul );
MemWrite( &welcome.initBegin, GetInitTime() );
MemWrite( &welcome.initEnd, m_timeBegin.load( std::memory_order_relaxed ) );
MemWrite( &welcome.delay, m_delay );
MemWrite( &welcome.resolution, m_resolution );
MemWrite( &welcome.epoch, m_epoch );
MemWrite( &welcome.exectime, m_exectime );
MemWrite( &welcome.pid, pid );
MemWrite( &welcome.samplingPeriod, m_samplingPeriod );
MemWrite( &welcome.flags, flags );
MemWrite( &welcome.cpuArch, cpuArch );
memcpy( welcome.cpuManufacturer, manufacturer, 12 );
MemWrite( &welcome.cpuId, cpuId );
memcpy( welcome.programName, procname, pnsz );
memset( welcome.programName + pnsz, 0, WelcomeMessageProgramNameSize - pnsz );
memcpy( welcome.hostInfo, hostinfo, hisz );
memset( welcome.hostInfo + hisz, 0, WelcomeMessageHostInfoSize - hisz );
moodycamel::ConsumerToken token( GetQueue() );
ListenSocket listen;
bool isListening = false;
if( !dataPortSearch )
{
isListening = listen.Listen( dataPort, 4 );
}
else
{
for( uint32_t i=0; i<20; i++ )
{
if( listen.Listen( dataPort+i, 4 ) )
{
dataPort += i;
isListening = true;
break;
}
}
}
if( !isListening )
{
for(;;)
{
if( ShouldExit() )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
ClearQueues( token );
std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
}
}
#ifndef TRACY_NO_BROADCAST
m_broadcast = (UdpBroadcast*)tracy_malloc( sizeof( UdpBroadcast ) );
new(m_broadcast) UdpBroadcast();
# ifdef TRACY_ONLY_LOCALHOST
const char* addr = "127.255.255.255";
# else
const char* addr = "255.255.255.255";
# endif
if( !m_broadcast->Open( addr, broadcastPort ) )
{
m_broadcast->~UdpBroadcast();
tracy_free( m_broadcast );
m_broadcast = nullptr;
}
#endif
int broadcastLen = 0;
auto& broadcastMsg = GetBroadcastMessage( procname, pnsz, broadcastLen, dataPort );
uint64_t lastBroadcast = 0;
// Connections loop.
// Each iteration of the loop handles whole connection. Multiple iterations will only
// happen in the on-demand mode or when handshake fails.
for(;;)
{
// Wait for incoming connection
for(;;)
{
#ifndef TRACY_NO_EXIT
if( !m_noExit && ShouldExit() )
{
if( m_broadcast )
{
broadcastMsg.activeTime = -1;
m_broadcast->Send( broadcastPort, &broadcastMsg, broadcastLen );
}
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
#endif
m_sock = listen.Accept();
if( m_sock ) break;
#ifndef TRACY_ON_DEMAND
ProcessSysTime();
#endif
if( m_broadcast )
{
const auto t = std::chrono::high_resolution_clock::now().time_since_epoch().count();
if( t - lastBroadcast > 3000000000 ) // 3s
{
lastBroadcast = t;
const auto ts = std::chrono::duration_cast<std::chrono::seconds>( std::chrono::system_clock::now().time_since_epoch() ).count();
broadcastMsg.activeTime = int32_t( ts - m_epoch );
assert( broadcastMsg.activeTime >= 0 );
m_broadcast->Send( broadcastPort, &broadcastMsg, broadcastLen );
}
}
}
if( m_broadcast )
{
lastBroadcast = 0;
broadcastMsg.activeTime = -1;
m_broadcast->Send( broadcastPort, &broadcastMsg, broadcastLen );
}
// Handshake
{
char shibboleth[HandshakeShibbolethSize];
auto res = m_sock->ReadRaw( shibboleth, HandshakeShibbolethSize, 2000 );
if( !res || memcmp( shibboleth, HandshakeShibboleth, HandshakeShibbolethSize ) != 0 )
{
m_sock->~Socket();
tracy_free( m_sock );
m_sock = nullptr;
continue;
}
uint32_t protocolVersion;
res = m_sock->ReadRaw( &protocolVersion, sizeof( protocolVersion ), 2000 );
if( !res )
{
m_sock->~Socket();
tracy_free( m_sock );
m_sock = nullptr;
continue;
}
if( protocolVersion != ProtocolVersion )
{
HandshakeStatus status = HandshakeProtocolMismatch;
m_sock->Send( &status, sizeof( status ) );
m_sock->~Socket();
tracy_free( m_sock );
m_sock = nullptr;
continue;
}
}
#ifdef TRACY_ON_DEMAND
const auto currentTime = GetTime();
ClearQueues( token );
m_connectionId.fetch_add( 1, std::memory_order_release );
#endif
m_isConnected.store( true, std::memory_order_release );
HandshakeStatus handshake = HandshakeWelcome;
m_sock->Send( &handshake, sizeof( handshake ) );
LZ4_resetStream( (LZ4_stream_t*)m_stream );
m_sock->Send( &welcome, sizeof( welcome ) );
m_threadCtx = 0;
m_refTimeSerial = 0;
m_refTimeCtx = 0;
m_refTimeGpu = 0;
#ifdef TRACY_ON_DEMAND
OnDemandPayloadMessage onDemand;
onDemand.frames = m_frameCount.load( std::memory_order_relaxed );
onDemand.currentTime = currentTime;
m_sock->Send( &onDemand, sizeof( onDemand ) );
m_deferredLock.lock();
for( auto& item : m_deferredQueue )
{
uint64_t ptr;
uint16_t size;
const auto idx = MemRead<uint8_t>( &item.hdr.idx );
switch( (QueueType)idx )
{
case QueueType::MessageAppInfo:
ptr = MemRead<uint64_t>( &item.messageFat.text );
size = MemRead<uint16_t>( &item.messageFat.size );
SendSingleString( (const char*)ptr, size );
break;
case QueueType::LockName:
ptr = MemRead<uint64_t>( &item.lockNameFat.name );
size = MemRead<uint16_t>( &item.lockNameFat.size );
SendSingleString( (const char*)ptr, size );
break;
case QueueType::GpuContextName:
ptr = MemRead<uint64_t>( &item.gpuContextNameFat.ptr );
size = MemRead<uint16_t>( &item.gpuContextNameFat.size );
SendSingleString( (const char*)ptr, size );
break;
default:
break;
}
AppendData( &item, QueueDataSize[idx] );
}
m_deferredLock.unlock();
#endif
// Main communications loop
int keepAlive = 0;
for(;;)
{
ProcessSysTime();
const auto status = Dequeue( token );
const auto serialStatus = DequeueSerial();
if( status == DequeueStatus::ConnectionLost || serialStatus == DequeueStatus::ConnectionLost )
{
break;
}
else if( status == DequeueStatus::QueueEmpty && serialStatus == DequeueStatus::QueueEmpty )
{
if( ShouldExit() ) break;
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) break;
}
if( keepAlive == 500 )
{
QueueItem ka;
ka.hdr.type = QueueType::KeepAlive;
AppendData( &ka, QueueDataSize[ka.hdr.idx] );
if( !CommitData() ) break;
keepAlive = 0;
}
else if( !m_sock->HasData() )
{
keepAlive++;
std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
}
}
else
{
keepAlive = 0;
}
bool connActive = true;
while( m_sock->HasData() )
{
connActive = HandleServerQuery();
if( !connActive ) break;
}
if( !connActive ) break;
}
if( ShouldExit() ) break;
m_isConnected.store( false, std::memory_order_release );
#ifdef TRACY_ON_DEMAND
m_bufferOffset = 0;
m_bufferStart = 0;
#endif
m_sock->~Socket();
tracy_free( m_sock );
m_sock = nullptr;
#ifndef TRACY_ON_DEMAND
// Client is no longer available here. Accept incoming connections, but reject handshake.
for(;;)
{
if( ShouldExit() )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
ClearQueues( token );
m_sock = listen.Accept();
if( m_sock )
{
char shibboleth[HandshakeShibbolethSize];
auto res = m_sock->ReadRaw( shibboleth, HandshakeShibbolethSize, 1000 );
if( !res || memcmp( shibboleth, HandshakeShibboleth, HandshakeShibbolethSize ) != 0 )
{
m_sock->~Socket();
tracy_free( m_sock );
m_sock = nullptr;
continue;
}
uint32_t protocolVersion;
res = m_sock->ReadRaw( &protocolVersion, sizeof( protocolVersion ), 1000 );
if( !res )
{
m_sock->~Socket();
tracy_free( m_sock );
m_sock = nullptr;
continue;
}
HandshakeStatus status = HandshakeNotAvailable;
m_sock->Send( &status, sizeof( status ) );
m_sock->~Socket();
tracy_free( m_sock );
}
}
#endif
}
// End of connections loop
// Wait for symbols thread to terminate. Symbol resolution will continue in this thread.
#ifdef TRACY_HAS_CALLSTACK
while( s_symbolThreadGone.load() == false ) { YieldThread(); }
#endif
// Client is exiting. Send items remaining in queues.
for(;;)
{
const auto status = Dequeue( token );
const auto serialStatus = DequeueSerial();
if( status == DequeueStatus::ConnectionLost || serialStatus == DequeueStatus::ConnectionLost )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
else if( status == DequeueStatus::QueueEmpty && serialStatus == DequeueStatus::QueueEmpty )
{
if( m_bufferOffset != m_bufferStart ) CommitData();
break;
}
while( m_sock->HasData() )
{
if( !HandleServerQuery() )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
}
#ifdef TRACY_HAS_CALLSTACK
for(;;)
{
auto si = m_symbolQueue.front();
if( !si ) break;
HandleSymbolQueueItem( *si );
m_symbolQueue.pop();
}
#endif
}
// Send client termination notice to the server
QueueItem terminate;
MemWrite( &terminate.hdr.type, QueueType::Terminate );
if( !SendData( (const char*)&terminate, 1 ) )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
// Handle remaining server queries
for(;;)
{
while( m_sock->HasData() )
{
if( !HandleServerQuery() )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
}
#ifdef TRACY_HAS_CALLSTACK
for(;;)
{
auto si = m_symbolQueue.front();
if( !si ) break;
HandleSymbolQueueItem( *si );
m_symbolQueue.pop();
}
#endif
const auto status = Dequeue( token );
const auto serialStatus = DequeueSerial();
if( status == DequeueStatus::ConnectionLost || serialStatus == DequeueStatus::ConnectionLost )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() )
{
m_shutdownFinished.store( true, std::memory_order_relaxed );
return;
}
}
}
}
#ifndef TRACY_NO_FRAME_IMAGE
void Profiler::CompressWorker()
{
ThreadExitHandler threadExitHandler;
SetThreadName( "Tracy DXT1" );
while( m_timeBegin.load( std::memory_order_relaxed ) == 0 ) std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
#ifdef TRACY_USE_RPMALLOC
rpmalloc_thread_initialize();
#endif
for(;;)
{
const auto shouldExit = ShouldExit();
{
bool lockHeld = true;
while( !m_fiLock.try_lock() )
{
if( m_shutdownManual.load( std::memory_order_relaxed ) )
{
lockHeld = false;
break;
}
}
if( !m_fiQueue.empty() ) m_fiQueue.swap( m_fiDequeue );
if( lockHeld )
{
m_fiLock.unlock();
}
}
const auto sz = m_fiDequeue.size();
if( sz > 0 )
{
auto fi = m_fiDequeue.data();
auto end = fi + sz;
while( fi != end )
{
const auto w = fi->w;
const auto h = fi->h;
const auto csz = size_t( w * h / 2 );
auto etc1buf = (char*)tracy_malloc( csz );
CompressImageDxt1( (const char*)fi->image, etc1buf, w, h );
tracy_free( fi->image );
TracyLfqPrepare( QueueType::FrameImage );
MemWrite( &item->frameImageFat.image, (uint64_t)etc1buf );
MemWrite( &item->frameImageFat.frame, fi->frame );
MemWrite( &item->frameImageFat.w, w );
MemWrite( &item->frameImageFat.h, h );
uint8_t flip = fi->flip;
MemWrite( &item->frameImageFat.flip, flip );
TracyLfqCommit;
fi++;
}
m_fiDequeue.clear();
}
else
{
std::this_thread::sleep_for( std::chrono::milliseconds( 20 ) );
}
if( shouldExit )
{
return;
}
}
}
#endif
static void FreeAssociatedMemory( const QueueItem& item )
{
if( item.hdr.idx >= (int)QueueType::Terminate ) return;
uint64_t ptr;
switch( item.hdr.type )
{
case QueueType::ZoneText:
case QueueType::ZoneName:
ptr = MemRead<uint64_t>( &item.zoneTextFat.text );
tracy_free( (void*)ptr );
break;
case QueueType::MessageColor:
case QueueType::MessageColorCallstack:
ptr = MemRead<uint64_t>( &item.messageColorFat.text );
tracy_free( (void*)ptr );
break;
case QueueType::Message:
case QueueType::MessageCallstack:
#ifndef TRACY_ON_DEMAND
case QueueType::MessageAppInfo:
#endif
ptr = MemRead<uint64_t>( &item.messageFat.text );
tracy_free( (void*)ptr );
break;
case QueueType::ZoneBeginAllocSrcLoc:
case QueueType::ZoneBeginAllocSrcLocCallstack:
ptr = MemRead<uint64_t>( &item.zoneBegin.srcloc );
tracy_free( (void*)ptr );
break;
case QueueType::GpuZoneBeginAllocSrcLoc:
case QueueType::GpuZoneBeginAllocSrcLocCallstack:
case QueueType::GpuZoneBeginAllocSrcLocSerial:
case QueueType::GpuZoneBeginAllocSrcLocCallstackSerial:
ptr = MemRead<uint64_t>( &item.gpuZoneBegin.srcloc );
tracy_free( (void*)ptr );
break;
case QueueType::CallstackSerial:
case QueueType::Callstack:
ptr = MemRead<uint64_t>( &item.callstackFat.ptr );
tracy_free( (void*)ptr );
break;
case QueueType::CallstackAlloc:
ptr = MemRead<uint64_t>( &item.callstackAllocFat.nativePtr );
tracy_free( (void*)ptr );
ptr = MemRead<uint64_t>( &item.callstackAllocFat.ptr );
tracy_free( (void*)ptr );
break;
case QueueType::CallstackSample:
case QueueType::CallstackSampleContextSwitch:
ptr = MemRead<uint64_t>( &item.callstackSampleFat.ptr );
tracy_free( (void*)ptr );
break;
case QueueType::FrameImage:
ptr = MemRead<uint64_t>( &item.frameImageFat.image );
tracy_free( (void*)ptr );
break;
#ifdef TRACY_HAS_CALLSTACK
case QueueType::CallstackFrameSize:
{
InitRpmalloc();
auto size = MemRead<uint8_t>( &item.callstackFrameSizeFat.size );
auto data = (const CallstackEntry*)MemRead<uint64_t>( &item.callstackFrameSizeFat.data );
for( uint8_t i=0; i<size; i++ )
{
const auto& frame = data[i];
tracy_free_fast( (void*)frame.name );
tracy_free_fast( (void*)frame.file );
}
tracy_free_fast( (void*)data );
break;
}
case QueueType::SymbolInformation:
{
uint8_t needFree = MemRead<uint8_t>( &item.symbolInformationFat.needFree );
if( needFree )
{
ptr = MemRead<uint64_t>( &item.symbolInformationFat.fileString );
tracy_free( (void*)ptr );
}
break;
}
case QueueType::SymbolCodeMetadata:
ptr = MemRead<uint64_t>( &item.symbolCodeMetadata.ptr );
tracy_free( (void*)ptr );
break;
#endif
#ifndef TRACY_ON_DEMAND
case QueueType::LockName:
ptr = MemRead<uint64_t>( &item.lockNameFat.name );
tracy_free( (void*)ptr );
break;
case QueueType::GpuContextName:
ptr = MemRead<uint64_t>( &item.gpuContextNameFat.ptr );
tracy_free( (void*)ptr );
break;
#endif
#ifdef TRACY_ON_DEMAND
case QueueType::MessageAppInfo:
case QueueType::GpuContextName:
// Don't free memory associated with deferred messages.
break;
#endif
#ifdef TRACY_HAS_SYSTEM_TRACING
case QueueType::ExternalNameMetadata:
ptr = MemRead<uint64_t>( &item.externalNameMetadata.name );
tracy_free( (void*)ptr );
ptr = MemRead<uint64_t>( &item.externalNameMetadata.threadName );
tracy_free_fast( (void*)ptr );
break;
#endif
case QueueType::SourceCodeMetadata:
ptr = MemRead<uint64_t>( &item.sourceCodeMetadata.ptr );
tracy_free( (void*)ptr );
break;
default:
break;
}
}
void Profiler::ClearQueues( moodycamel::ConsumerToken& token )
{
for(;;)
{
const auto sz = GetQueue().try_dequeue_bulk_single( token, [](const uint64_t&){}, []( QueueItem* item, size_t sz ) { assert( sz > 0 ); while( sz-- > 0 ) FreeAssociatedMemory( *item++ ); } );
if( sz == 0 ) break;
}
ClearSerial();
}
void Profiler::ClearSerial()
{
bool lockHeld = true;
while( !m_serialLock.try_lock() )
{
if( m_shutdownManual.load( std::memory_order_relaxed ) )
{
lockHeld = false;
break;
}
}
for( auto& v : m_serialQueue ) FreeAssociatedMemory( v );
m_serialQueue.clear();
if( lockHeld )
{
m_serialLock.unlock();
}
for( auto& v : m_serialDequeue ) FreeAssociatedMemory( v );
m_serialDequeue.clear();
}
Profiler::DequeueStatus Profiler::Dequeue( moodycamel::ConsumerToken& token )
{
bool connectionLost = false;
const auto sz = GetQueue().try_dequeue_bulk_single( token,
[this, &connectionLost] ( const uint32_t& threadId )
{
if( ThreadCtxCheck( threadId ) == ThreadCtxStatus::ConnectionLost ) connectionLost = true;
},
[this, &connectionLost] ( QueueItem* item, size_t sz )
{
if( connectionLost ) return;
InitRpmalloc();
assert( sz > 0 );
int64_t refThread = m_refTimeThread;
int64_t refCtx = m_refTimeCtx;
int64_t refGpu = m_refTimeGpu;
while( sz-- > 0 )
{
uint64_t ptr;
uint16_t size;
auto idx = MemRead<uint8_t>( &item->hdr.idx );
if( idx < (int)QueueType::Terminate )
{
switch( (QueueType)idx )
{
case QueueType::ZoneText:
case QueueType::ZoneName:
ptr = MemRead<uint64_t>( &item->zoneTextFat.text );
size = MemRead<uint16_t>( &item->zoneTextFat.size );
SendSingleString( (const char*)ptr, size );
tracy_free_fast( (void*)ptr );
break;
case QueueType::Message:
case QueueType::MessageCallstack:
ptr = MemRead<uint64_t>( &item->messageFat.text );
size = MemRead<uint16_t>( &item->messageFat.size );
SendSingleString( (const char*)ptr, size );
tracy_free_fast( (void*)ptr );
break;
case QueueType::MessageColor:
case QueueType::MessageColorCallstack:
ptr = MemRead<uint64_t>( &item->messageColorFat.text );
size = MemRead<uint16_t>( &item->messageColorFat.size );
SendSingleString( (const char*)ptr, size );
tracy_free_fast( (void*)ptr );
break;
case QueueType::MessageAppInfo:
ptr = MemRead<uint64_t>( &item->messageFat.text );
size = MemRead<uint16_t>( &item->messageFat.size );
SendSingleString( (const char*)ptr, size );
#ifndef TRACY_ON_DEMAND
tracy_free_fast( (void*)ptr );
#endif
break;
case QueueType::ZoneBeginAllocSrcLoc:
case QueueType::ZoneBeginAllocSrcLocCallstack:
{
int64_t t = MemRead<int64_t>( &item->zoneBegin.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->zoneBegin.time, dt );
ptr = MemRead<uint64_t>( &item->zoneBegin.srcloc );
SendSourceLocationPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::Callstack:
ptr = MemRead<uint64_t>( &item->callstackFat.ptr );
SendCallstackPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
case QueueType::CallstackAlloc:
ptr = MemRead<uint64_t>( &item->callstackAllocFat.nativePtr );
if( ptr != 0 )
{
CutCallstack( (void*)ptr, "lua_pcall" );
SendCallstackPayload( ptr );
tracy_free_fast( (void*)ptr );
}
ptr = MemRead<uint64_t>( &item->callstackAllocFat.ptr );
SendCallstackAlloc( ptr );
tracy_free_fast( (void*)ptr );
break;
case QueueType::CallstackSample:
case QueueType::CallstackSampleContextSwitch:
{
ptr = MemRead<uint64_t>( &item->callstackSampleFat.ptr );
SendCallstackPayload64( ptr );
tracy_free_fast( (void*)ptr );
int64_t t = MemRead<int64_t>( &item->callstackSampleFat.time );
int64_t dt = t - refCtx;
refCtx = t;
MemWrite( &item->callstackSampleFat.time, dt );
break;
}
case QueueType::FrameImage:
{
ptr = MemRead<uint64_t>( &item->frameImageFat.image );
const auto w = MemRead<uint16_t>( &item->frameImageFat.w );
const auto h = MemRead<uint16_t>( &item->frameImageFat.h );
const auto csz = size_t( w * h / 2 );
SendLongString( ptr, (const char*)ptr, csz, QueueType::FrameImageData );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::ZoneBegin:
case QueueType::ZoneBeginCallstack:
{
int64_t t = MemRead<int64_t>( &item->zoneBegin.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->zoneBegin.time, dt );
break;
}
case QueueType::ZoneEnd:
{
int64_t t = MemRead<int64_t>( &item->zoneEnd.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->zoneEnd.time, dt );
break;
}
case QueueType::GpuZoneBegin:
case QueueType::GpuZoneBeginCallstack:
{
int64_t t = MemRead<int64_t>( &item->gpuZoneBegin.cpuTime );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->gpuZoneBegin.cpuTime, dt );
break;
}
case QueueType::GpuZoneBeginAllocSrcLoc:
case QueueType::GpuZoneBeginAllocSrcLocCallstack:
{
int64_t t = MemRead<int64_t>( &item->gpuZoneBegin.cpuTime );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->gpuZoneBegin.cpuTime, dt );
ptr = MemRead<uint64_t>( &item->gpuZoneBegin.srcloc );
SendSourceLocationPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::GpuZoneEnd:
{
int64_t t = MemRead<int64_t>( &item->gpuZoneEnd.cpuTime );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->gpuZoneEnd.cpuTime, dt );
break;
}
case QueueType::GpuContextName:
ptr = MemRead<uint64_t>( &item->gpuContextNameFat.ptr );
size = MemRead<uint16_t>( &item->gpuContextNameFat.size );
SendSingleString( (const char*)ptr, size );
#ifndef TRACY_ON_DEMAND
tracy_free_fast( (void*)ptr );
#endif
break;
case QueueType::PlotDataInt:
case QueueType::PlotDataFloat:
case QueueType::PlotDataDouble:
{
int64_t t = MemRead<int64_t>( &item->plotDataInt.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->plotDataInt.time, dt );
break;
}
case QueueType::ContextSwitch:
{
int64_t t = MemRead<int64_t>( &item->contextSwitch.time );
int64_t dt = t - refCtx;
refCtx = t;
MemWrite( &item->contextSwitch.time, dt );
break;
}
case QueueType::ThreadWakeup:
{
int64_t t = MemRead<int64_t>( &item->threadWakeup.time );
int64_t dt = t - refCtx;
refCtx = t;
MemWrite( &item->threadWakeup.time, dt );
break;
}
case QueueType::GpuTime:
{
int64_t t = MemRead<int64_t>( &item->gpuTime.gpuTime );
int64_t dt = t - refGpu;
refGpu = t;
MemWrite( &item->gpuTime.gpuTime, dt );
break;
}
#ifdef TRACY_HAS_CALLSTACK
case QueueType::CallstackFrameSize:
{
auto data = (const CallstackEntry*)MemRead<uint64_t>( &item->callstackFrameSizeFat.data );
auto datasz = MemRead<uint8_t>( &item->callstackFrameSizeFat.size );
auto imageName = (const char*)MemRead<uint64_t>( &item->callstackFrameSizeFat.imageName );
SendSingleString( imageName );
AppendData( item++, QueueDataSize[idx] );
for( uint8_t i=0; i<datasz; i++ )
{
const auto& frame = data[i];
SendSingleString( frame.name );
SendSecondString( frame.file );
QueueItem item;
MemWrite( &item.hdr.type, QueueType::CallstackFrame );
MemWrite( &item.callstackFrame.line, frame.line );
MemWrite( &item.callstackFrame.symAddr, frame.symAddr );
MemWrite( &item.callstackFrame.symLen, frame.symLen );
AppendData( &item, QueueDataSize[(int)QueueType::CallstackFrame] );
tracy_free_fast( (void*)frame.name );
tracy_free_fast( (void*)frame.file );
}
tracy_free_fast( (void*)data );
continue;
}
case QueueType::SymbolInformation:
{
auto fileString = (const char*)MemRead<uint64_t>( &item->symbolInformationFat.fileString );
auto needFree = MemRead<uint8_t>( &item->symbolInformationFat.needFree );
SendSingleString( fileString );
if( needFree ) tracy_free_fast( (void*)fileString );
break;
}
case QueueType::SymbolCodeMetadata:
{
auto symbol = MemRead<uint64_t>( &item->symbolCodeMetadata.symbol );
auto ptr = (const char*)MemRead<uint64_t>( &item->symbolCodeMetadata.ptr );
auto size = MemRead<uint32_t>( &item->symbolCodeMetadata.size );
SendLongString( symbol, ptr, size, QueueType::SymbolCode );
tracy_free_fast( (void*)ptr );
++item;
continue;
}
#endif
#ifdef TRACY_HAS_SYSTEM_TRACING
case QueueType::ExternalNameMetadata:
{
auto thread = MemRead<uint64_t>( &item->externalNameMetadata.thread );
auto name = (const char*)MemRead<uint64_t>( &item->externalNameMetadata.name );
auto threadName = (const char*)MemRead<uint64_t>( &item->externalNameMetadata.threadName );
SendString( thread, threadName, QueueType::ExternalThreadName );
SendString( thread, name, QueueType::ExternalName );
tracy_free_fast( (void*)threadName );
tracy_free_fast( (void*)name );
++item;
continue;
}
#endif
case QueueType::SourceCodeMetadata:
{
auto ptr = (const char*)MemRead<uint64_t>( &item->sourceCodeMetadata.ptr );
auto size = MemRead<uint32_t>( &item->sourceCodeMetadata.size );
auto id = MemRead<uint32_t>( &item->sourceCodeMetadata.id );
SendLongString( (uint64_t)id, ptr, size, QueueType::SourceCode );
tracy_free_fast( (void*)ptr );
++item;
continue;
}
default:
assert( false );
break;
}
}
if( !AppendData( item++, QueueDataSize[idx] ) )
{
connectionLost = true;
m_refTimeThread = refThread;
m_refTimeCtx = refCtx;
m_refTimeGpu = refGpu;
return;
}
}
m_refTimeThread = refThread;
m_refTimeCtx = refCtx;
m_refTimeGpu = refGpu;
}
);
if( connectionLost ) return DequeueStatus::ConnectionLost;
return sz > 0 ? DequeueStatus::DataDequeued : DequeueStatus::QueueEmpty;
}
Profiler::DequeueStatus Profiler::DequeueContextSwitches( tracy::moodycamel::ConsumerToken& token, int64_t& timeStop )
{
const auto sz = GetQueue().try_dequeue_bulk_single( token, [] ( const uint64_t& ) {},
[this, &timeStop] ( QueueItem* item, size_t sz )
{
assert( sz > 0 );
int64_t refCtx = m_refTimeCtx;
while( sz-- > 0 )
{
FreeAssociatedMemory( *item );
if( timeStop < 0 ) return;
const auto idx = MemRead<uint8_t>( &item->hdr.idx );
if( idx == (uint8_t)QueueType::ContextSwitch )
{
const auto csTime = MemRead<int64_t>( &item->contextSwitch.time );
if( csTime > timeStop )
{
timeStop = -1;
m_refTimeCtx = refCtx;
return;
}
int64_t dt = csTime - refCtx;
refCtx = csTime;
MemWrite( &item->contextSwitch.time, dt );
if( !AppendData( item, QueueDataSize[(int)QueueType::ContextSwitch] ) )
{
timeStop = -2;
m_refTimeCtx = refCtx;
return;
}
}
else if( idx == (uint8_t)QueueType::ThreadWakeup )
{
const auto csTime = MemRead<int64_t>( &item->threadWakeup.time );
if( csTime > timeStop )
{
timeStop = -1;
m_refTimeCtx = refCtx;
return;
}
int64_t dt = csTime - refCtx;
refCtx = csTime;
MemWrite( &item->threadWakeup.time, dt );
if( !AppendData( item, QueueDataSize[(int)QueueType::ThreadWakeup] ) )
{
timeStop = -2;
m_refTimeCtx = refCtx;
return;
}
}
item++;
}
m_refTimeCtx = refCtx;
}
);
if( timeStop == -2 ) return DequeueStatus::ConnectionLost;
return ( timeStop == -1 || sz > 0 ) ? DequeueStatus::DataDequeued : DequeueStatus::QueueEmpty;
}
#define ThreadCtxCheckSerial( _name ) \
uint32_t thread = MemRead<uint32_t>( &item->_name.thread ); \
switch( ThreadCtxCheck( thread ) ) \
{ \
case ThreadCtxStatus::Same: break; \
case ThreadCtxStatus::Changed: assert( m_refTimeThread == 0 ); refThread = 0; break; \
case ThreadCtxStatus::ConnectionLost: return DequeueStatus::ConnectionLost; \
default: assert( false ); break; \
}
Profiler::DequeueStatus Profiler::DequeueSerial()
{
{
bool lockHeld = true;
while( !m_serialLock.try_lock() )
{
if( m_shutdownManual.load( std::memory_order_relaxed ) )
{
lockHeld = false;
break;
}
}
if( !m_serialQueue.empty() ) m_serialQueue.swap( m_serialDequeue );
if( lockHeld )
{
m_serialLock.unlock();
}
}
const auto sz = m_serialDequeue.size();
if( sz > 0 )
{
InitRpmalloc();
int64_t refSerial = m_refTimeSerial;
int64_t refGpu = m_refTimeGpu;
#ifdef TRACY_FIBERS
int64_t refThread = m_refTimeThread;
#endif
auto item = m_serialDequeue.data();
auto end = item + sz;
while( item != end )
{
uint64_t ptr;
auto idx = MemRead<uint8_t>( &item->hdr.idx );
if( idx < (int)QueueType::Terminate )
{
switch( (QueueType)idx )
{
case QueueType::CallstackSerial:
ptr = MemRead<uint64_t>( &item->callstackFat.ptr );
SendCallstackPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
case QueueType::LockWait:
case QueueType::LockSharedWait:
{
int64_t t = MemRead<int64_t>( &item->lockWait.time );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->lockWait.time, dt );
break;
}
case QueueType::LockObtain:
case QueueType::LockSharedObtain:
{
int64_t t = MemRead<int64_t>( &item->lockObtain.time );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->lockObtain.time, dt );
break;
}
case QueueType::LockRelease:
case QueueType::LockSharedRelease:
{
int64_t t = MemRead<int64_t>( &item->lockRelease.time );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->lockRelease.time, dt );
break;
}
case QueueType::LockName:
{
ptr = MemRead<uint64_t>( &item->lockNameFat.name );
uint16_t size = MemRead<uint16_t>( &item->lockNameFat.size );
SendSingleString( (const char*)ptr, size );
#ifndef TRACY_ON_DEMAND
tracy_free_fast( (void*)ptr );
#endif
break;
}
case QueueType::MemAlloc:
case QueueType::MemAllocNamed:
case QueueType::MemAllocCallstack:
case QueueType::MemAllocCallstackNamed:
{
int64_t t = MemRead<int64_t>( &item->memAlloc.time );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->memAlloc.time, dt );
break;
}
case QueueType::MemFree:
case QueueType::MemFreeNamed:
case QueueType::MemFreeCallstack:
case QueueType::MemFreeCallstackNamed:
{
int64_t t = MemRead<int64_t>( &item->memFree.time );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->memFree.time, dt );
break;
}
case QueueType::GpuZoneBeginSerial:
case QueueType::GpuZoneBeginCallstackSerial:
{
int64_t t = MemRead<int64_t>( &item->gpuZoneBegin.cpuTime );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->gpuZoneBegin.cpuTime, dt );
break;
}
case QueueType::GpuZoneBeginAllocSrcLocSerial:
case QueueType::GpuZoneBeginAllocSrcLocCallstackSerial:
{
int64_t t = MemRead<int64_t>( &item->gpuZoneBegin.cpuTime );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->gpuZoneBegin.cpuTime, dt );
ptr = MemRead<uint64_t>( &item->gpuZoneBegin.srcloc );
SendSourceLocationPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::GpuZoneEndSerial:
{
int64_t t = MemRead<int64_t>( &item->gpuZoneEnd.cpuTime );
int64_t dt = t - refSerial;
refSerial = t;
MemWrite( &item->gpuZoneEnd.cpuTime, dt );
break;
}
case QueueType::GpuTime:
{
int64_t t = MemRead<int64_t>( &item->gpuTime.gpuTime );
int64_t dt = t - refGpu;
refGpu = t;
MemWrite( &item->gpuTime.gpuTime, dt );
break;
}
case QueueType::GpuContextName:
{
ptr = MemRead<uint64_t>( &item->gpuContextNameFat.ptr );
uint16_t size = MemRead<uint16_t>( &item->gpuContextNameFat.size );
SendSingleString( (const char*)ptr, size );
#ifndef TRACY_ON_DEMAND
tracy_free_fast( (void*)ptr );
#endif
break;
}
#ifdef TRACY_FIBERS
case QueueType::ZoneBegin:
case QueueType::ZoneBeginCallstack:
{
ThreadCtxCheckSerial( zoneBeginThread );
int64_t t = MemRead<int64_t>( &item->zoneBegin.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->zoneBegin.time, dt );
break;
}
case QueueType::ZoneBeginAllocSrcLoc:
case QueueType::ZoneBeginAllocSrcLocCallstack:
{
ThreadCtxCheckSerial( zoneBeginThread );
int64_t t = MemRead<int64_t>( &item->zoneBegin.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->zoneBegin.time, dt );
ptr = MemRead<uint64_t>( &item->zoneBegin.srcloc );
SendSourceLocationPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::ZoneEnd:
{
ThreadCtxCheckSerial( zoneEndThread );
int64_t t = MemRead<int64_t>( &item->zoneEnd.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->zoneEnd.time, dt );
break;
}
case QueueType::ZoneText:
case QueueType::ZoneName:
{
ThreadCtxCheckSerial( zoneTextFatThread );
ptr = MemRead<uint64_t>( &item->zoneTextFat.text );
uint16_t size = MemRead<uint16_t>( &item->zoneTextFat.size );
SendSingleString( (const char*)ptr, size );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::Message:
case QueueType::MessageCallstack:
{
ThreadCtxCheckSerial( messageFatThread );
ptr = MemRead<uint64_t>( &item->messageFat.text );
uint16_t size = MemRead<uint16_t>( &item->messageFat.size );
SendSingleString( (const char*)ptr, size );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::MessageColor:
case QueueType::MessageColorCallstack:
{
ThreadCtxCheckSerial( messageColorFatThread );
ptr = MemRead<uint64_t>( &item->messageColorFat.text );
uint16_t size = MemRead<uint16_t>( &item->messageColorFat.size );
SendSingleString( (const char*)ptr, size );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::Callstack:
{
ThreadCtxCheckSerial( callstackFatThread );
ptr = MemRead<uint64_t>( &item->callstackFat.ptr );
SendCallstackPayload( ptr );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::CallstackAlloc:
{
ThreadCtxCheckSerial( callstackAllocFatThread );
ptr = MemRead<uint64_t>( &item->callstackAllocFat.nativePtr );
if( ptr != 0 )
{
CutCallstack( (void*)ptr, "lua_pcall" );
SendCallstackPayload( ptr );
tracy_free_fast( (void*)ptr );
}
ptr = MemRead<uint64_t>( &item->callstackAllocFat.ptr );
SendCallstackAlloc( ptr );
tracy_free_fast( (void*)ptr );
break;
}
case QueueType::FiberEnter:
{
ThreadCtxCheckSerial( fiberEnter );
int64_t t = MemRead<int64_t>( &item->fiberEnter.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->fiberEnter.time, dt );
break;
}
case QueueType::FiberLeave:
{
ThreadCtxCheckSerial( fiberLeave );
int64_t t = MemRead<int64_t>( &item->fiberLeave.time );
int64_t dt = t - refThread;
refThread = t;
MemWrite( &item->fiberLeave.time, dt );
break;
}
#endif
default:
assert( false );
break;
}
}
#ifdef TRACY_FIBERS
else
{
switch( (QueueType)idx )
{
case QueueType::ZoneColor:
{
ThreadCtxCheckSerial( zoneColorThread );
break;
}
case QueueType::ZoneValue:
{
ThreadCtxCheckSerial( zoneValueThread );
break;
}
case QueueType::ZoneValidation:
{
ThreadCtxCheckSerial( zoneValidationThread );
break;
}
case QueueType::MessageLiteral:
case QueueType::MessageLiteralCallstack:
{
ThreadCtxCheckSerial( messageLiteralThread );
break;
}
case QueueType::MessageLiteralColor:
case QueueType::MessageLiteralColorCallstack:
{
ThreadCtxCheckSerial( messageColorLiteralThread );
break;
}
case QueueType::CrashReport:
{
ThreadCtxCheckSerial( crashReportThread );
break;
}
default:
break;
}
}
#endif
if( !AppendData( item, QueueDataSize[idx] ) ) return DequeueStatus::ConnectionLost;
item++;
}
m_refTimeSerial = refSerial;
m_refTimeGpu = refGpu;
#ifdef TRACY_FIBERS
m_refTimeThread = refThread;
#endif
m_serialDequeue.clear();
}
else
{
return DequeueStatus::QueueEmpty;
}
return DequeueStatus::DataDequeued;
}
Profiler::ThreadCtxStatus Profiler::ThreadCtxCheck( uint32_t threadId )
{
if( m_threadCtx == threadId ) return ThreadCtxStatus::Same;
QueueItem item;
MemWrite( &item.hdr.type, QueueType::ThreadContext );
MemWrite( &item.threadCtx.thread, threadId );
if( !AppendData( &item, QueueDataSize[(int)QueueType::ThreadContext] ) ) return ThreadCtxStatus::ConnectionLost;
m_threadCtx = threadId;
m_refTimeThread = 0;
return ThreadCtxStatus::Changed;
}
bool Profiler::CommitData()
{
bool ret = SendData( m_buffer + m_bufferStart, m_bufferOffset - m_bufferStart );
if( m_bufferOffset > TargetFrameSize * 2 ) m_bufferOffset = 0;
m_bufferStart = m_bufferOffset;
return ret;
}
bool Profiler::SendData( const char* data, size_t len )
{
const lz4sz_t lz4sz = LZ4_compress_fast_continue( (LZ4_stream_t*)m_stream, data, m_lz4Buf + sizeof( lz4sz_t ), (int)len, LZ4Size, 1 );
memcpy( m_lz4Buf, &lz4sz, sizeof( lz4sz ) );
return m_sock->Send( m_lz4Buf, lz4sz + sizeof( lz4sz_t ) ) != -1;
}
void Profiler::SendString( uint64_t str, const char* ptr, size_t len, QueueType type )
{
assert( type == QueueType::StringData ||
type == QueueType::ThreadName ||
type == QueueType::PlotName ||
type == QueueType::FrameName ||
type == QueueType::ExternalName ||
type == QueueType::ExternalThreadName ||
type == QueueType::FiberName );
QueueItem item;
MemWrite( &item.hdr.type, type );
MemWrite( &item.stringTransfer.ptr, str );
assert( len <= std::numeric_limits<uint16_t>::max() );
auto l16 = uint16_t( len );
NeedDataSize( QueueDataSize[(int)type] + sizeof( l16 ) + l16 );
AppendDataUnsafe( &item, QueueDataSize[(int)type] );
AppendDataUnsafe( &l16, sizeof( l16 ) );
AppendDataUnsafe( ptr, l16 );
}
void Profiler::SendSingleString( const char* ptr, size_t len )
{
QueueItem item;
MemWrite( &item.hdr.type, QueueType::SingleStringData );
assert( len <= std::numeric_limits<uint16_t>::max() );
auto l16 = uint16_t( len );
NeedDataSize( QueueDataSize[(int)QueueType::SingleStringData] + sizeof( l16 ) + l16 );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::SingleStringData] );
AppendDataUnsafe( &l16, sizeof( l16 ) );
AppendDataUnsafe( ptr, l16 );
}
void Profiler::SendSecondString( const char* ptr, size_t len )
{
QueueItem item;
MemWrite( &item.hdr.type, QueueType::SecondStringData );
assert( len <= std::numeric_limits<uint16_t>::max() );
auto l16 = uint16_t( len );
NeedDataSize( QueueDataSize[(int)QueueType::SecondStringData] + sizeof( l16 ) + l16 );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::SecondStringData] );
AppendDataUnsafe( &l16, sizeof( l16 ) );
AppendDataUnsafe( ptr, l16 );
}
void Profiler::SendLongString( uint64_t str, const char* ptr, size_t len, QueueType type )
{
assert( type == QueueType::FrameImageData ||
type == QueueType::SymbolCode ||
type == QueueType::SourceCode );
QueueItem item;
MemWrite( &item.hdr.type, type );
MemWrite( &item.stringTransfer.ptr, str );
assert( len <= std::numeric_limits<uint32_t>::max() );
assert( QueueDataSize[(int)type] + sizeof( uint32_t ) + len <= TargetFrameSize );
auto l32 = uint32_t( len );
NeedDataSize( QueueDataSize[(int)type] + sizeof( l32 ) + l32 );
AppendDataUnsafe( &item, QueueDataSize[(int)type] );
AppendDataUnsafe( &l32, sizeof( l32 ) );
AppendDataUnsafe( ptr, l32 );
}
void Profiler::SendSourceLocation( uint64_t ptr )
{
auto srcloc = (const SourceLocationData*)ptr;
QueueItem item;
MemWrite( &item.hdr.type, QueueType::SourceLocation );
MemWrite( &item.srcloc.name, (uint64_t)srcloc->name );
MemWrite( &item.srcloc.file, (uint64_t)srcloc->file );
MemWrite( &item.srcloc.function, (uint64_t)srcloc->function );
MemWrite( &item.srcloc.line, srcloc->line );
MemWrite( &item.srcloc.r, uint8_t( ( srcloc->color ) & 0xFF ) );
MemWrite( &item.srcloc.g, uint8_t( ( srcloc->color >> 8 ) & 0xFF ) );
MemWrite( &item.srcloc.b, uint8_t( ( srcloc->color >> 16 ) & 0xFF ) );
AppendData( &item, QueueDataSize[(int)QueueType::SourceLocation] );
}
void Profiler::SendSourceLocationPayload( uint64_t _ptr )
{
auto ptr = (const char*)_ptr;
QueueItem item;
MemWrite( &item.hdr.type, QueueType::SourceLocationPayload );
MemWrite( &item.stringTransfer.ptr, _ptr );
uint16_t len;
memcpy( &len, ptr, sizeof( len ) );
assert( len > 2 );
len -= 2;
ptr += 2;
NeedDataSize( QueueDataSize[(int)QueueType::SourceLocationPayload] + sizeof( len ) + len );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::SourceLocationPayload] );
AppendDataUnsafe( &len, sizeof( len ) );
AppendDataUnsafe( ptr, len );
}
void Profiler::SendCallstackPayload( uint64_t _ptr )
{
auto ptr = (uintptr_t*)_ptr;
QueueItem item;
MemWrite( &item.hdr.type, QueueType::CallstackPayload );
MemWrite( &item.stringTransfer.ptr, _ptr );
const auto sz = *ptr++;
const auto len = sz * sizeof( uint64_t );
const auto l16 = uint16_t( len );
NeedDataSize( QueueDataSize[(int)QueueType::CallstackPayload] + sizeof( l16 ) + l16 );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::CallstackPayload] );
AppendDataUnsafe( &l16, sizeof( l16 ) );
if( compile_time_condition<sizeof( uintptr_t ) == sizeof( uint64_t )>::value )
{
AppendDataUnsafe( ptr, sizeof( uint64_t ) * sz );
}
else
{
for( uintptr_t i=0; i<sz; i++ )
{
const auto val = uint64_t( *ptr++ );
AppendDataUnsafe( &val, sizeof( uint64_t ) );
}
}
}
void Profiler::SendCallstackPayload64( uint64_t _ptr )
{
auto ptr = (uint64_t*)_ptr;
QueueItem item;
MemWrite( &item.hdr.type, QueueType::CallstackPayload );
MemWrite( &item.stringTransfer.ptr, _ptr );
const auto sz = *ptr++;
const auto len = sz * sizeof( uint64_t );
const auto l16 = uint16_t( len );
NeedDataSize( QueueDataSize[(int)QueueType::CallstackPayload] + sizeof( l16 ) + l16 );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::CallstackPayload] );
AppendDataUnsafe( &l16, sizeof( l16 ) );
AppendDataUnsafe( ptr, sizeof( uint64_t ) * sz );
}
void Profiler::SendCallstackAlloc( uint64_t _ptr )
{
auto ptr = (const char*)_ptr;
QueueItem item;
MemWrite( &item.hdr.type, QueueType::CallstackAllocPayload );
MemWrite( &item.stringTransfer.ptr, _ptr );
uint16_t len;
memcpy( &len, ptr, 2 );
ptr += 2;
NeedDataSize( QueueDataSize[(int)QueueType::CallstackAllocPayload] + sizeof( len ) + len );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::CallstackAllocPayload] );
AppendDataUnsafe( &len, sizeof( len ) );
AppendDataUnsafe( ptr, len );
}
void Profiler::QueueCallstackFrame( uint64_t ptr )
{
#ifdef TRACY_HAS_CALLSTACK
m_symbolQueue.emplace( SymbolQueueItem { SymbolQueueItemType::CallstackFrame, ptr } );
#else
AckServerQuery();
#endif
}
void Profiler::QueueSymbolQuery( uint64_t symbol )
{
#ifdef TRACY_HAS_CALLSTACK
// Special handling for kernel frames
if( symbol >> 63 != 0 )
{
SendSingleString( "<kernel>" );
QueueItem item;
MemWrite( &item.hdr.type, QueueType::SymbolInformation );
MemWrite( &item.symbolInformation.line, 0 );
MemWrite( &item.symbolInformation.symAddr, symbol );
AppendData( &item, QueueDataSize[(int)QueueType::SymbolInformation] );
}
else
{
m_symbolQueue.emplace( SymbolQueueItem { SymbolQueueItemType::SymbolQuery, symbol } );
}
#else
AckServerQuery();
#endif
}
void Profiler::QueueExternalName( uint64_t ptr )
{
#ifdef TRACY_HAS_SYSTEM_TRACING
m_symbolQueue.emplace( SymbolQueueItem { SymbolQueueItemType::ExternalName, ptr } );
#endif
}
void Profiler::QueueKernelCode( uint64_t symbol, uint32_t size )
{
assert( symbol >> 63 != 0 );
#ifdef TRACY_HAS_CALLSTACK
m_symbolQueue.emplace( SymbolQueueItem { SymbolQueueItemType::KernelCode, symbol, size } );
#else
AckSymbolCodeNotAvailable();
#endif
}
void Profiler::QueueSourceCodeQuery( uint32_t id )
{
assert( m_exectime != 0 );
assert( m_queryData );
m_symbolQueue.emplace( SymbolQueueItem { SymbolQueueItemType::SourceCode, uint64_t( m_queryData ), uint64_t( m_queryImage ), id } );
m_queryData = nullptr;
m_queryImage = nullptr;
}
#ifdef TRACY_HAS_CALLSTACK
void Profiler::HandleSymbolQueueItem( const SymbolQueueItem& si )
{
switch( si.type )
{
case SymbolQueueItemType::CallstackFrame:
{
const auto frameData = DecodeCallstackPtr( si.ptr );
auto data = tracy_malloc_fast( sizeof( CallstackEntry ) * frameData.size );
memcpy( data, frameData.data, sizeof( CallstackEntry ) * frameData.size );
TracyLfqPrepare( QueueType::CallstackFrameSize );
MemWrite( &item->callstackFrameSizeFat.ptr, si.ptr );
MemWrite( &item->callstackFrameSizeFat.size, frameData.size );
MemWrite( &item->callstackFrameSizeFat.data, (uint64_t)data );
MemWrite( &item->callstackFrameSizeFat.imageName, (uint64_t)frameData.imageName );
TracyLfqCommit;
break;
}
case SymbolQueueItemType::SymbolQuery:
{
#ifdef __ANDROID__
// On Android it's common for code to be in mappings that are only executable
// but not readable.
if( !EnsureReadable( si.ptr ) )
{
TracyLfqPrepare( QueueType::AckServerQueryNoop );
TracyLfqCommit;
break;
}
#endif
const auto sym = DecodeSymbolAddress( si.ptr );
TracyLfqPrepare( QueueType::SymbolInformation );
MemWrite( &item->symbolInformationFat.line, sym.line );
MemWrite( &item->symbolInformationFat.symAddr, si.ptr );
MemWrite( &item->symbolInformationFat.fileString, (uint64_t)sym.file );
MemWrite( &item->symbolInformationFat.needFree, (uint8_t)sym.needFree );
TracyLfqCommit;
break;
}
#ifdef TRACY_HAS_SYSTEM_TRACING
case SymbolQueueItemType::ExternalName:
{
const char* threadName;
const char* name;
SysTraceGetExternalName( si.ptr, threadName, name );
TracyLfqPrepare( QueueType::ExternalNameMetadata );
MemWrite( &item->externalNameMetadata.thread, si.ptr );
MemWrite( &item->externalNameMetadata.name, (uint64_t)name );
MemWrite( &item->externalNameMetadata.threadName, (uint64_t)threadName );
TracyLfqCommit;
break;
}
#endif
case SymbolQueueItemType::KernelCode:
{
#ifdef _WIN32
auto mod = GetKernelModulePath( si.ptr );
if( mod )
{
auto fn = DecodeCallstackPtrFast( si.ptr );
if( *fn )
{
auto hnd = LoadLibraryExA( mod, nullptr, DONT_RESOLVE_DLL_REFERENCES );
if( hnd )
{
auto ptr = (const void*)GetProcAddress( hnd, fn );
if( ptr )
{
auto buf = (char*)tracy_malloc( si.extra );
memcpy( buf, ptr, si.extra );
FreeLibrary( hnd );
TracyLfqPrepare( QueueType::SymbolCodeMetadata );
MemWrite( &item->symbolCodeMetadata.symbol, si.ptr );
MemWrite( &item->symbolCodeMetadata.ptr, (uint64_t)buf );
MemWrite( &item->symbolCodeMetadata.size, (uint32_t)si.extra );
TracyLfqCommit;
break;
}
FreeLibrary( hnd );
}
}
}
#endif
TracyLfqPrepare( QueueType::AckSymbolCodeNotAvailable );
TracyLfqCommit;
break;
}
case SymbolQueueItemType::SourceCode:
HandleSourceCodeQuery( (char*)si.ptr, (char*)si.extra, si.id );
break;
default:
assert( false );
break;
}
}
void Profiler::SymbolWorker()
{
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
s_symbolTid = syscall( SYS_gettid );
#endif
ThreadExitHandler threadExitHandler;
SetThreadName( "Tracy Symbol Worker" );
#ifdef TRACY_USE_RPMALLOC
InitRpmalloc();
#endif
InitCallstack();
while( m_timeBegin.load( std::memory_order_relaxed ) == 0 ) std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
for(;;)
{
const auto shouldExit = ShouldExit();
#ifdef TRACY_ON_DEMAND
if( !IsConnected() )
{
if( shouldExit )
{
s_symbolThreadGone.store( true, std::memory_order_release );
return;
}
while( m_symbolQueue.front() ) m_symbolQueue.pop();
std::this_thread::sleep_for( std::chrono::milliseconds( 20 ) );
continue;
}
#endif
auto si = m_symbolQueue.front();
if( si )
{
HandleSymbolQueueItem( *si );
m_symbolQueue.pop();
}
else
{
if( shouldExit )
{
s_symbolThreadGone.store( true, std::memory_order_release );
return;
}
std::this_thread::sleep_for( std::chrono::milliseconds( 20 ) );
}
}
}
#endif
bool Profiler::HandleServerQuery()
{
ServerQueryPacket payload;
if( !m_sock->Read( &payload, sizeof( payload ), 10 ) ) return false;
uint8_t type;
uint64_t ptr;
uint32_t extra;
memcpy( &type, &payload.type, sizeof( payload.type ) );
memcpy( &ptr, &payload.ptr, sizeof( payload.ptr ) );
memcpy( &extra, &payload.extra, sizeof( payload.extra ) );
switch( type )
{
case ServerQueryString:
SendString( ptr, (const char*)ptr, QueueType::StringData );
break;
case ServerQueryThreadString:
if( ptr == m_mainThread )
{
SendString( ptr, "Main thread", 11, QueueType::ThreadName );
}
else
{
SendString( ptr, GetThreadName( ptr ), QueueType::ThreadName );
}
break;
case ServerQuerySourceLocation:
SendSourceLocation( ptr );
break;
case ServerQueryPlotName:
SendString( ptr, (const char*)ptr, QueueType::PlotName );
break;
case ServerQueryTerminate:
return false;
case ServerQueryCallstackFrame:
QueueCallstackFrame( ptr );
break;
case ServerQueryFrameName:
SendString( ptr, (const char*)ptr, QueueType::FrameName );
break;
case ServerQueryDisconnect:
HandleDisconnect();
return false;
#ifdef TRACY_HAS_SYSTEM_TRACING
case ServerQueryExternalName:
QueueExternalName( ptr );
break;
#endif
case ServerQueryParameter:
HandleParameter( ptr );
break;
case ServerQuerySymbol:
QueueSymbolQuery( ptr );
break;
#ifndef TRACY_NO_CODE_TRANSFER
case ServerQuerySymbolCode:
HandleSymbolCodeQuery( ptr, extra );
break;
#endif
case ServerQuerySourceCode:
QueueSourceCodeQuery( uint32_t( ptr ) );
break;
case ServerQueryDataTransfer:
if( m_queryData )
{
assert( !m_queryImage );
m_queryImage = m_queryData;
}
m_queryDataPtr = m_queryData = (char*)tracy_malloc( ptr + 11 );
AckServerQuery();
break;
case ServerQueryDataTransferPart:
memcpy( m_queryDataPtr, &ptr, 8 );
memcpy( m_queryDataPtr+8, &extra, 4 );
m_queryDataPtr += 12;
AckServerQuery();
break;
#ifdef TRACY_FIBERS
case ServerQueryFiberName:
SendString( ptr, (const char*)ptr, QueueType::FiberName );
break;
#endif
default:
assert( false );
break;
}
return true;
}
void Profiler::HandleDisconnect()
{
moodycamel::ConsumerToken token( GetQueue() );
#ifdef TRACY_HAS_SYSTEM_TRACING
if( s_sysTraceThread )
{
auto timestamp = GetTime();
for(;;)
{
const auto status = DequeueContextSwitches( token, timestamp );
if( status == DequeueStatus::ConnectionLost )
{
return;
}
else if( status == DequeueStatus::QueueEmpty )
{
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) return;
}
}
if( timestamp < 0 )
{
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) return;
}
break;
}
ClearSerial();
if( m_sock->HasData() )
{
while( m_sock->HasData() )
{
if( !HandleServerQuery() ) return;
}
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) return;
}
}
else
{
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) return;
}
std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
}
}
}
#endif
QueueItem terminate;
MemWrite( &terminate.hdr.type, QueueType::Terminate );
if( !SendData( (const char*)&terminate, 1 ) ) return;
for(;;)
{
ClearQueues( token );
if( m_sock->HasData() )
{
while( m_sock->HasData() )
{
if( !HandleServerQuery() ) return;
}
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) return;
}
}
else
{
if( m_bufferOffset != m_bufferStart )
{
if( !CommitData() ) return;
}
std::this_thread::sleep_for( std::chrono::milliseconds( 10 ) );
}
}
}
void Profiler::CalibrateTimer()
{
m_timerMul = 1.;
#ifdef TRACY_HW_TIMER
# if !defined TRACY_TIMER_QPC && defined TRACY_TIMER_FALLBACK
const bool needCalibration = HardwareSupportsInvariantTSC();
# else
const bool needCalibration = true;
# endif
if( needCalibration )
{
std::atomic_signal_fence( std::memory_order_acq_rel );
const auto t0 = std::chrono::high_resolution_clock::now();
const auto r0 = GetTime();
std::atomic_signal_fence( std::memory_order_acq_rel );
std::this_thread::sleep_for( std::chrono::milliseconds( 200 ) );
std::atomic_signal_fence( std::memory_order_acq_rel );
const auto t1 = std::chrono::high_resolution_clock::now();
const auto r1 = GetTime();
std::atomic_signal_fence( std::memory_order_acq_rel );
const auto dt = std::chrono::duration_cast<std::chrono::nanoseconds>( t1 - t0 ).count();
const auto dr = r1 - r0;
m_timerMul = double( dt ) / double( dr );
}
#endif
}
void Profiler::CalibrateDelay()
{
constexpr int Iterations = 50000;
auto mindiff = std::numeric_limits<int64_t>::max();
for( int i=0; i<Iterations * 10; i++ )
{
const auto t0i = GetTime();
const auto t1i = GetTime();
const auto dti = t1i - t0i;
if( dti > 0 && dti < mindiff ) mindiff = dti;
}
m_resolution = mindiff;
#ifdef TRACY_DELAYED_INIT
m_delay = m_resolution;
#else
constexpr int Events = Iterations * 2; // start + end
static_assert( Events < QueuePrealloc, "Delay calibration loop will allocate memory in queue" );
static const tracy::SourceLocationData __tracy_source_location { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 };
const auto t0 = GetTime();
for( int i=0; i<Iterations; i++ )
{
{
TracyLfqPrepare( QueueType::ZoneBegin );
MemWrite( &item->zoneBegin.time, Profiler::GetTime() );
MemWrite( &item->zoneBegin.srcloc, (uint64_t)&__tracy_source_location );
TracyLfqCommit;
}
{
TracyLfqPrepare( QueueType::ZoneEnd );
MemWrite( &item->zoneEnd.time, GetTime() );
TracyLfqCommit;
}
}
const auto t1 = GetTime();
const auto dt = t1 - t0;
m_delay = dt / Events;
moodycamel::ConsumerToken token( GetQueue() );
int left = Events;
while( left != 0 )
{
const auto sz = GetQueue().try_dequeue_bulk_single( token, [](const uint64_t&){}, [](QueueItem* item, size_t sz){} );
assert( sz > 0 );
left -= (int)sz;
}
assert( GetQueue().size_approx() == 0 );
#endif
}
void Profiler::ReportTopology()
{
#ifndef TRACY_DELAYED_INIT
struct CpuData
{
uint32_t package;
uint32_t core;
uint32_t thread;
};
#if defined _WIN32
# ifdef TRACY_UWP
t_GetLogicalProcessorInformationEx _GetLogicalProcessorInformationEx = &::GetLogicalProcessorInformationEx;
# else
t_GetLogicalProcessorInformationEx _GetLogicalProcessorInformationEx = (t_GetLogicalProcessorInformationEx)GetProcAddress( GetModuleHandleA( "kernel32.dll" ), "GetLogicalProcessorInformationEx" );
# endif
if( !_GetLogicalProcessorInformationEx ) return;
DWORD psz = 0;
_GetLogicalProcessorInformationEx( RelationProcessorPackage, nullptr, &psz );
auto packageInfo = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX*)tracy_malloc( psz );
auto res = _GetLogicalProcessorInformationEx( RelationProcessorPackage, packageInfo, &psz );
assert( res );
DWORD csz = 0;
_GetLogicalProcessorInformationEx( RelationProcessorCore, nullptr, &csz );
auto coreInfo = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX*)tracy_malloc( csz );
res = _GetLogicalProcessorInformationEx( RelationProcessorCore, coreInfo, &csz );
assert( res );
SYSTEM_INFO sysinfo;
GetSystemInfo( &sysinfo );
const uint32_t numcpus = sysinfo.dwNumberOfProcessors;
auto cpuData = (CpuData*)tracy_malloc( sizeof( CpuData ) * numcpus );
for( uint32_t i=0; i<numcpus; i++ ) cpuData[i].thread = i;
int idx = 0;
auto ptr = packageInfo;
while( (char*)ptr < ((char*)packageInfo) + psz )
{
assert( ptr->Relationship == RelationProcessorPackage );
// FIXME account for GroupCount
auto mask = ptr->Processor.GroupMask[0].Mask;
int core = 0;
while( mask != 0 )
{
if( mask & 1 ) cpuData[core].package = idx;
core++;
mask >>= 1;
}
ptr = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX*)(((char*)ptr) + ptr->Size);
idx++;
}
idx = 0;
ptr = coreInfo;
while( (char*)ptr < ((char*)coreInfo) + csz )
{
assert( ptr->Relationship == RelationProcessorCore );
// FIXME account for GroupCount
auto mask = ptr->Processor.GroupMask[0].Mask;
int core = 0;
while( mask != 0 )
{
if( mask & 1 ) cpuData[core].core = idx;
core++;
mask >>= 1;
}
ptr = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX*)(((char*)ptr) + ptr->Size);
idx++;
}
for( uint32_t i=0; i<numcpus; i++ )
{
auto& data = cpuData[i];
TracyLfqPrepare( QueueType::CpuTopology );
MemWrite( &item->cpuTopology.package, data.package );
MemWrite( &item->cpuTopology.core, data.core );
MemWrite( &item->cpuTopology.thread, data.thread );
#ifdef TRACY_ON_DEMAND
DeferItem( *item );
#endif
TracyLfqCommit;
}
tracy_free( cpuData );
tracy_free( coreInfo );
tracy_free( packageInfo );
#elif defined __linux__
const int numcpus = std::thread::hardware_concurrency();
auto cpuData = (CpuData*)tracy_malloc( sizeof( CpuData ) * numcpus );
memset( cpuData, 0, sizeof( CpuData ) * numcpus );
const char* basePath = "/sys/devices/system/cpu/cpu";
for( int i=0; i<numcpus; i++ )
{
char path[1024];
sprintf( path, "%s%i/topology/physical_package_id", basePath, i );
char buf[1024];
FILE* f = fopen( path, "rb" );
if( !f )
{
tracy_free( cpuData );
return;
}
auto read = fread( buf, 1, 1024, f );
buf[read] = '\0';
fclose( f );
cpuData[i].package = uint32_t( atoi( buf ) );
cpuData[i].thread = i;
sprintf( path, "%s%i/topology/core_id", basePath, i );
f = fopen( path, "rb" );
read = fread( buf, 1, 1024, f );
buf[read] = '\0';
fclose( f );
cpuData[i].core = uint32_t( atoi( buf ) );
}
for( int i=0; i<numcpus; i++ )
{
auto& data = cpuData[i];
TracyLfqPrepare( QueueType::CpuTopology );
MemWrite( &item->cpuTopology.package, data.package );
MemWrite( &item->cpuTopology.core, data.core );
MemWrite( &item->cpuTopology.thread, data.thread );
#ifdef TRACY_ON_DEMAND
DeferItem( *item );
#endif
TracyLfqCommit;
}
tracy_free( cpuData );
#endif
#endif
}
void Profiler::SendCallstack( int depth, const char* skipBefore )
{
#ifdef TRACY_HAS_CALLSTACK
auto ptr = Callstack( depth );
CutCallstack( ptr, skipBefore );
TracyQueuePrepare( QueueType::Callstack );
MemWrite( &item->callstackFat.ptr, (uint64_t)ptr );
TracyQueueCommit( callstackFatThread );
#endif
}
void Profiler::CutCallstack( void* callstack, const char* skipBefore )
{
#ifdef TRACY_HAS_CALLSTACK
auto data = (uintptr_t*)callstack;
const auto sz = *data++;
uintptr_t i;
for( i=0; i<sz; i++ )
{
auto name = DecodeCallstackPtrFast( uint64_t( data[i] ) );
const bool found = strcmp( name, skipBefore ) == 0;
if( found )
{
i++;
break;
}
}
if( i != sz )
{
memmove( data, data + i, ( sz - i ) * sizeof( uintptr_t* ) );
*--data = sz - i;
}
#endif
}
#ifdef TRACY_HAS_SYSTIME
void Profiler::ProcessSysTime()
{
if( m_shutdown.load( std::memory_order_relaxed ) ) return;
auto t = std::chrono::high_resolution_clock::now().time_since_epoch().count();
if( t - m_sysTimeLast > 100000000 ) // 100 ms
{
auto sysTime = m_sysTime.Get();
if( sysTime >= 0 )
{
m_sysTimeLast = t;
TracyLfqPrepare( QueueType::SysTimeReport );
MemWrite( &item->sysTime.time, GetTime() );
MemWrite( &item->sysTime.sysTime, sysTime );
TracyLfqCommit;
}
}
}
#endif
void Profiler::HandleParameter( uint64_t payload )
{
assert( m_paramCallback );
const auto idx = uint32_t( payload >> 32 );
const auto val = int32_t( payload & 0xFFFFFFFF );
m_paramCallback( m_paramCallbackData, idx, val );
AckServerQuery();
}
void Profiler::HandleSymbolCodeQuery( uint64_t symbol, uint32_t size )
{
if( symbol >> 63 != 0 )
{
QueueKernelCode( symbol, size );
}
else
{
#ifdef __ANDROID__
// On Android it's common for code to be in mappings that are only executable
// but not readable.
if( !EnsureReadable( symbol ) )
{
AckSymbolCodeNotAvailable();
return;
}
#endif
SendLongString( symbol, (const char*)symbol, size, QueueType::SymbolCode );
}
}
void Profiler::HandleSourceCodeQuery( char* data, char* image, uint32_t id )
{
bool ok = false;
struct stat st;
if( stat( data, &st ) == 0 && (uint64_t)st.st_mtime < m_exectime )
{
if( st.st_size < ( TargetFrameSize - 16 ) )
{
FILE* f = fopen( data, "rb" );
if( f )
{
auto ptr = (char*)tracy_malloc_fast( st.st_size );
auto rd = fread( ptr, 1, st.st_size, f );
fclose( f );
if( rd == (size_t)st.st_size )
{
TracyLfqPrepare( QueueType::SourceCodeMetadata );
MemWrite( &item->sourceCodeMetadata.ptr, (uint64_t)ptr );
MemWrite( &item->sourceCodeMetadata.size, (uint32_t)rd );
MemWrite( &item->sourceCodeMetadata.id, id );
TracyLfqCommit;
ok = true;
}
}
}
}
#ifdef TRACY_DEBUGINFOD
else if( image && data[0] == '/' )
{
size_t size;
auto buildid = GetBuildIdForImage( image, size );
if( buildid )
{
auto d = debuginfod_find_source( GetDebuginfodClient(), buildid, size, data, nullptr );
TracyDebug( "DebugInfo source query: %s, fn: %s, image: %s\n", d >= 0 ? " ok " : "fail", data, image );
if( d >= 0 )
{
struct stat st;
fstat( d, &st );
if( st.st_size < ( TargetFrameSize - 16 ) )
{
lseek( d, 0, SEEK_SET );
auto ptr = (char*)tracy_malloc_fast( st.st_size );
auto rd = read( d, ptr, st.st_size );
if( rd == (size_t)st.st_size )
{
TracyLfqPrepare( QueueType::SourceCodeMetadata );
MemWrite( &item->sourceCodeMetadata.ptr, (uint64_t)ptr );
MemWrite( &item->sourceCodeMetadata.size, (uint32_t)rd );
MemWrite( &item->sourceCodeMetadata.id, id );
TracyLfqCommit;
ok = true;
}
}
close( d );
}
}
}
else
{
TracyDebug( "DebugInfo invalid query fn: %s, image: %s\n", data, image );
}
#endif
if( !ok && m_sourceCallback )
{
size_t sz;
char* ptr = m_sourceCallback( m_sourceCallbackData, data, sz );
if( ptr )
{
if( sz < ( TargetFrameSize - 16 ) )
{
TracyLfqPrepare( QueueType::SourceCodeMetadata );
MemWrite( &item->sourceCodeMetadata.ptr, (uint64_t)ptr );
MemWrite( &item->sourceCodeMetadata.size, (uint32_t)sz );
MemWrite( &item->sourceCodeMetadata.id, id );
TracyLfqCommit;
ok = true;
}
}
}
if( !ok )
{
TracyLfqPrepare( QueueType::AckSourceCodeNotAvailable );
MemWrite( &item->sourceCodeNotAvailable, id );
TracyLfqCommit;
}
tracy_free_fast( data );
tracy_free_fast( image );
}
#if defined _WIN32 && defined TRACY_TIMER_QPC
int64_t Profiler::GetTimeQpc()
{
LARGE_INTEGER t;
QueryPerformanceCounter( &t );
return t.QuadPart;
}
#endif
}
#ifdef __cplusplus
extern "C" {
#endif
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin( const struct ___tracy_source_location_data* srcloc, int active )
{
___tracy_c_zone_context ctx;
#ifdef TRACY_ON_DEMAND
ctx.active = active && tracy::GetProfiler().IsConnected();
#else
ctx.active = active;
#endif
if( !ctx.active ) return ctx;
const auto id = tracy::GetProfiler().GetNextZoneId();
ctx.id = id;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneBegin );
tracy::MemWrite( &item->zoneBegin.time, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->zoneBegin.srcloc, (uint64_t)srcloc );
TracyQueueCommitC( zoneBeginThread );
}
return ctx;
}
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin_callstack( const struct ___tracy_source_location_data* srcloc, int depth, int active )
{
___tracy_c_zone_context ctx;
#ifdef TRACY_ON_DEMAND
ctx.active = active && tracy::GetProfiler().IsConnected();
#else
ctx.active = active;
#endif
if( !ctx.active ) return ctx;
const auto id = tracy::GetProfiler().GetNextZoneId();
ctx.id = id;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
tracy::GetProfiler().SendCallstack( depth );
{
TracyQueuePrepareC( tracy::QueueType::ZoneBeginCallstack );
tracy::MemWrite( &item->zoneBegin.time, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->zoneBegin.srcloc, (uint64_t)srcloc );
TracyQueueCommitC( zoneBeginThread );
}
return ctx;
}
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin_alloc( uint64_t srcloc, int active )
{
___tracy_c_zone_context ctx;
#ifdef TRACY_ON_DEMAND
ctx.active = active && tracy::GetProfiler().IsConnected();
#else
ctx.active = active;
#endif
if( !ctx.active )
{
tracy::tracy_free( (void*)srcloc );
return ctx;
}
const auto id = tracy::GetProfiler().GetNextZoneId();
ctx.id = id;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneBeginAllocSrcLoc );
tracy::MemWrite( &item->zoneBegin.time, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->zoneBegin.srcloc, srcloc );
TracyQueueCommitC( zoneBeginThread );
}
return ctx;
}
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin_alloc_callstack( uint64_t srcloc, int depth, int active )
{
___tracy_c_zone_context ctx;
#ifdef TRACY_ON_DEMAND
ctx.active = active && tracy::GetProfiler().IsConnected();
#else
ctx.active = active;
#endif
if( !ctx.active )
{
tracy::tracy_free( (void*)srcloc );
return ctx;
}
const auto id = tracy::GetProfiler().GetNextZoneId();
ctx.id = id;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
tracy::GetProfiler().SendCallstack( depth );
{
TracyQueuePrepareC( tracy::QueueType::ZoneBeginAllocSrcLocCallstack );
tracy::MemWrite( &item->zoneBegin.time, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->zoneBegin.srcloc, srcloc );
TracyQueueCommitC( zoneBeginThread );
}
return ctx;
}
TRACY_API void ___tracy_emit_zone_end( TracyCZoneCtx ctx )
{
if( !ctx.active ) return;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, ctx.id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneEnd );
tracy::MemWrite( &item->zoneEnd.time, tracy::Profiler::GetTime() );
TracyQueueCommitC( zoneEndThread );
}
}
TRACY_API void ___tracy_emit_zone_text( TracyCZoneCtx ctx, const char* txt, size_t size )
{
assert( size < std::numeric_limits<uint16_t>::max() );
if( !ctx.active ) return;
auto ptr = (char*)tracy::tracy_malloc( size );
memcpy( ptr, txt, size );
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, ctx.id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneText );
tracy::MemWrite( &item->zoneTextFat.text, (uint64_t)ptr );
tracy::MemWrite( &item->zoneTextFat.size, (uint16_t)size );
TracyQueueCommitC( zoneTextFatThread );
}
}
TRACY_API void ___tracy_emit_zone_name( TracyCZoneCtx ctx, const char* txt, size_t size )
{
assert( size < std::numeric_limits<uint16_t>::max() );
if( !ctx.active ) return;
auto ptr = (char*)tracy::tracy_malloc( size );
memcpy( ptr, txt, size );
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, ctx.id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneName );
tracy::MemWrite( &item->zoneTextFat.text, (uint64_t)ptr );
tracy::MemWrite( &item->zoneTextFat.size, (uint16_t)size );
TracyQueueCommitC( zoneTextFatThread );
}
}
TRACY_API void ___tracy_emit_zone_color( TracyCZoneCtx ctx, uint32_t color ) {
if( !ctx.active ) return;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, ctx.id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneColor );
tracy::MemWrite( &item->zoneColor.r, uint8_t( ( color ) & 0xFF ) );
tracy::MemWrite( &item->zoneColor.g, uint8_t( ( color >> 8 ) & 0xFF ) );
tracy::MemWrite( &item->zoneColor.b, uint8_t( ( color >> 16 ) & 0xFF ) );
TracyQueueCommitC( zoneColorThread );
}
}
TRACY_API void ___tracy_emit_zone_value( TracyCZoneCtx ctx, uint64_t value )
{
if( !ctx.active ) return;
#ifndef TRACY_NO_VERIFY
{
TracyQueuePrepareC( tracy::QueueType::ZoneValidation );
tracy::MemWrite( &item->zoneValidation.id, ctx.id );
TracyQueueCommitC( zoneValidationThread );
}
#endif
{
TracyQueuePrepareC( tracy::QueueType::ZoneValue );
tracy::MemWrite( &item->zoneValue.value, value );
TracyQueueCommitC( zoneValueThread );
}
}
TRACY_API void ___tracy_emit_memory_alloc( const void* ptr, size_t size, int secure ) { tracy::Profiler::MemAlloc( ptr, size, secure != 0 ); }
TRACY_API void ___tracy_emit_memory_alloc_callstack( const void* ptr, size_t size, int depth, int secure ) { tracy::Profiler::MemAllocCallstack( ptr, size, depth, secure != 0 ); }
TRACY_API void ___tracy_emit_memory_free( const void* ptr, int secure ) { tracy::Profiler::MemFree( ptr, secure != 0 ); }
TRACY_API void ___tracy_emit_memory_free_callstack( const void* ptr, int depth, int secure ) { tracy::Profiler::MemFreeCallstack( ptr, depth, secure != 0 ); }
TRACY_API void ___tracy_emit_memory_alloc_named( const void* ptr, size_t size, int secure, const char* name ) { tracy::Profiler::MemAllocNamed( ptr, size, secure != 0, name ); }
TRACY_API void ___tracy_emit_memory_alloc_callstack_named( const void* ptr, size_t size, int depth, int secure, const char* name ) { tracy::Profiler::MemAllocCallstackNamed( ptr, size, depth, secure != 0, name ); }
TRACY_API void ___tracy_emit_memory_free_named( const void* ptr, int secure, const char* name ) { tracy::Profiler::MemFreeNamed( ptr, secure != 0, name ); }
TRACY_API void ___tracy_emit_memory_free_callstack_named( const void* ptr, int depth, int secure, const char* name ) { tracy::Profiler::MemFreeCallstackNamed( ptr, depth, secure != 0, name ); }
TRACY_API void ___tracy_emit_frame_mark( const char* name ) { tracy::Profiler::SendFrameMark( name ); }
TRACY_API void ___tracy_emit_frame_mark_start( const char* name ) { tracy::Profiler::SendFrameMark( name, tracy::QueueType::FrameMarkMsgStart ); }
TRACY_API void ___tracy_emit_frame_mark_end( const char* name ) { tracy::Profiler::SendFrameMark( name, tracy::QueueType::FrameMarkMsgEnd ); }
TRACY_API void ___tracy_emit_frame_image( const void* image, uint16_t w, uint16_t h, uint8_t offset, int flip ) { tracy::Profiler::SendFrameImage( image, w, h, offset, flip ); }
TRACY_API void ___tracy_emit_plot( const char* name, double val ) { tracy::Profiler::PlotData( name, val ); }
TRACY_API void ___tracy_emit_message( const char* txt, size_t size, int callstack ) { tracy::Profiler::Message( txt, size, callstack ); }
TRACY_API void ___tracy_emit_messageL( const char* txt, int callstack ) { tracy::Profiler::Message( txt, callstack ); }
TRACY_API void ___tracy_emit_messageC( const char* txt, size_t size, uint32_t color, int callstack ) { tracy::Profiler::MessageColor( txt, size, color, callstack ); }
TRACY_API void ___tracy_emit_messageLC( const char* txt, uint32_t color, int callstack ) { tracy::Profiler::MessageColor( txt, color, callstack ); }
TRACY_API void ___tracy_emit_message_appinfo( const char* txt, size_t size ) { tracy::Profiler::MessageAppInfo( txt, size ); }
TRACY_API uint64_t ___tracy_alloc_srcloc( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz ) {
return tracy::Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz );
}
TRACY_API uint64_t ___tracy_alloc_srcloc_name( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz ) {
return tracy::Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
}
TRACY_API void ___tracy_emit_gpu_zone_begin( const struct ___tracy_gpu_zone_begin_data data )
{
TracyLfqPrepareC( tracy::QueueType::GpuZoneBegin );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_zone_begin_callstack( const struct ___tracy_gpu_zone_begin_callstack_data data )
{
tracy::GetProfiler().SendCallstack( data.depth );
TracyLfqPrepareC( tracy::QueueType::GpuZoneBeginCallstack );
tracy::MemWrite( &item->gpuZoneBegin.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc( const struct ___tracy_gpu_zone_begin_data data )
{
TracyLfqPrepareC( tracy::QueueType::GpuZoneBeginAllocSrcLoc );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc_callstack( const struct ___tracy_gpu_zone_begin_callstack_data data )
{
tracy::GetProfiler().SendCallstack( data.depth );
TracyLfqPrepareC( tracy::QueueType::GpuZoneBeginAllocSrcLocCallstack );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_time( const struct ___tracy_gpu_time_data data )
{
TracyLfqPrepareC( tracy::QueueType::GpuTime );
tracy::MemWrite( &item->gpuTime.gpuTime, data.gpuTime );
tracy::MemWrite( &item->gpuTime.queryId, data.queryId );
tracy::MemWrite( &item->gpuTime.context, data.context );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_zone_end( const struct ___tracy_gpu_zone_end_data data )
{
TracyLfqPrepareC( tracy::QueueType::GpuZoneEnd );
tracy::MemWrite( &item->gpuZoneEnd.cpuTime, tracy::Profiler::GetTime() );
memset( &item->gpuZoneEnd.thread, 0, sizeof( item->gpuZoneEnd.thread ) );
tracy::MemWrite( &item->gpuZoneEnd.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneEnd.context, data.context );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_new_context( ___tracy_gpu_new_context_data data )
{
TracyLfqPrepareC( tracy::QueueType::GpuNewContext );
tracy::MemWrite( &item->gpuNewContext.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuNewContext.gpuTime, data.gpuTime );
tracy::MemWrite( &item->gpuNewContext.period, data.period );
tracy::MemWrite( &item->gpuNewContext.context, data.context );
tracy::MemWrite( &item->gpuNewContext.flags, data.flags );
tracy::MemWrite( &item->gpuNewContext.type, data.type );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_context_name( const struct ___tracy_gpu_context_name_data data )
{
auto ptr = (char*)tracy::tracy_malloc( data.len );
memcpy( ptr, data.name, data.len );
TracyLfqPrepareC( tracy::QueueType::GpuContextName );
tracy::MemWrite( &item->gpuContextNameFat.context, data.context );
tracy::MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
tracy::MemWrite( &item->gpuContextNameFat.size, data.len );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_calibration( const struct ___tracy_gpu_calibration_data data )
{
TracyLfqPrepareC( tracy::QueueType::GpuCalibration );
tracy::MemWrite( &item->gpuCalibration.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuCalibration.gpuTime, data.gpuTime );
tracy::MemWrite( &item->gpuCalibration.cpuDelta, data.cpuDelta );
tracy::MemWrite( &item->gpuCalibration.context, data.context );
TracyLfqCommitC;
}
TRACY_API void ___tracy_emit_gpu_zone_begin_serial( const struct ___tracy_gpu_zone_begin_data data )
{
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuZoneBeginSerial );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_zone_begin_callstack_serial( const struct ___tracy_gpu_zone_begin_callstack_data data )
{
auto item = tracy::Profiler::QueueSerialCallstack( tracy::Callstack( data.depth ) );
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuZoneBeginCallstackSerial );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc_serial( const struct ___tracy_gpu_zone_begin_data data )
{
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuZoneBeginAllocSrcLocSerial );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc_callstack_serial( const struct ___tracy_gpu_zone_begin_callstack_data data )
{
auto item = tracy::Profiler::QueueSerialCallstack( tracy::Callstack( data.depth ) );
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuZoneBeginAllocSrcLocCallstackSerial );
tracy::MemWrite( &item->gpuZoneBegin.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuZoneBegin.srcloc, data.srcloc );
tracy::MemWrite( &item->gpuZoneBegin.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneBegin.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_time_serial( const struct ___tracy_gpu_time_data data )
{
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuTime );
tracy::MemWrite( &item->gpuTime.gpuTime, data.gpuTime );
tracy::MemWrite( &item->gpuTime.queryId, data.queryId );
tracy::MemWrite( &item->gpuTime.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_zone_end_serial( const struct ___tracy_gpu_zone_end_data data )
{
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuZoneEndSerial );
tracy::MemWrite( &item->gpuZoneEnd.cpuTime, tracy::Profiler::GetTime() );
memset( &item->gpuZoneEnd.thread, 0, sizeof( item->gpuZoneEnd.thread ) );
tracy::MemWrite( &item->gpuZoneEnd.queryId, data.queryId );
tracy::MemWrite( &item->gpuZoneEnd.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_new_context_serial( ___tracy_gpu_new_context_data data )
{
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuNewContext );
tracy::MemWrite( &item->gpuNewContext.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuNewContext.thread, tracy::GetThreadHandle() );
tracy::MemWrite( &item->gpuNewContext.gpuTime, data.gpuTime );
tracy::MemWrite( &item->gpuNewContext.period, data.period );
tracy::MemWrite( &item->gpuNewContext.context, data.context );
tracy::MemWrite( &item->gpuNewContext.flags, data.flags );
tracy::MemWrite( &item->gpuNewContext.type, data.type );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_context_name_serial( const struct ___tracy_gpu_context_name_data data )
{
auto ptr = (char*)tracy::tracy_malloc( data.len );
memcpy( ptr, data.name, data.len );
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuContextName );
tracy::MemWrite( &item->gpuContextNameFat.context, data.context );
tracy::MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
tracy::MemWrite( &item->gpuContextNameFat.size, data.len );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API void ___tracy_emit_gpu_calibration_serial( const struct ___tracy_gpu_calibration_data data )
{
auto item = tracy::Profiler::QueueSerial();
tracy::MemWrite( &item->hdr.type, tracy::QueueType::GpuCalibration );
tracy::MemWrite( &item->gpuCalibration.cpuTime, tracy::Profiler::GetTime() );
tracy::MemWrite( &item->gpuCalibration.gpuTime, data.gpuTime );
tracy::MemWrite( &item->gpuCalibration.cpuDelta, data.cpuDelta );
tracy::MemWrite( &item->gpuCalibration.context, data.context );
tracy::Profiler::QueueSerialFinish();
}
TRACY_API int ___tracy_connected( void )
{
return tracy::GetProfiler().IsConnected();
}
#ifdef TRACY_FIBERS
TRACY_API void ___tracy_fiber_enter( const char* fiber ){ tracy::Profiler::EnterFiber( fiber ); }
TRACY_API void ___tracy_fiber_leave( void ){ tracy::Profiler::LeaveFiber(); }
#endif
# ifdef TRACY_MANUAL_LIFETIME
TRACY_API void ___tracy_startup_profiler( void )
{
tracy::StartupProfiler();
}
TRACY_API void ___tracy_shutdown_profiler( void )
{
tracy::ShutdownProfiler();
}
# endif
#ifdef __cplusplus
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyProfiler.hpp | #ifndef __TRACYPROFILER_HPP__
#define __TRACYPROFILER_HPP__
#include <assert.h>
#include <atomic>
#include <stdint.h>
#include <string.h>
#include <time.h>
#include "tracy_concurrentqueue.h"
#include "tracy_SPSCQueue.h"
#include "TracyCallstack.hpp"
#include "TracySysTime.hpp"
#include "TracyFastVector.hpp"
#include "../common/TracyQueue.hpp"
#include "../common/TracyAlign.hpp"
#include "../common/TracyAlloc.hpp"
#include "../common/TracyMutex.hpp"
#include "../common/TracyProtocol.hpp"
#if defined _WIN32
# include <intrin.h>
#endif
#ifdef __APPLE__
# include <TargetConditionals.h>
# include <mach/mach_time.h>
#endif
#if ( defined _WIN32 || ( defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64 ) || ( defined TARGET_OS_IOS && TARGET_OS_IOS == 1 ) )
# define TRACY_HW_TIMER
#endif
#ifdef __linux__
# include <signal.h>
#endif
#if defined TRACY_TIMER_FALLBACK || !defined TRACY_HW_TIMER
# include <chrono>
#endif
#ifndef TracyConcat
# define TracyConcat(x,y) TracyConcatIndirect(x,y)
#endif
#ifndef TracyConcatIndirect
# define TracyConcatIndirect(x,y) x##y
#endif
namespace tracy
{
#if defined(TRACY_DELAYED_INIT) && defined(TRACY_MANUAL_LIFETIME)
TRACY_API void StartupProfiler();
TRACY_API void ShutdownProfiler();
#endif
class GpuCtx;
class Profiler;
class Socket;
class UdpBroadcast;
struct GpuCtxWrapper
{
GpuCtx* ptr;
};
TRACY_API moodycamel::ConcurrentQueue<QueueItem>::ExplicitProducer* GetToken();
TRACY_API Profiler& GetProfiler();
TRACY_API std::atomic<uint32_t>& GetLockCounter();
TRACY_API std::atomic<uint8_t>& GetGpuCtxCounter();
TRACY_API GpuCtxWrapper& GetGpuCtx();
TRACY_API uint32_t GetThreadHandle();
TRACY_API bool ProfilerAvailable();
TRACY_API bool ProfilerAllocatorAvailable();
TRACY_API int64_t GetFrequencyQpc();
#if defined TRACY_TIMER_FALLBACK && defined TRACY_HW_TIMER && ( defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64 )
TRACY_API bool HardwareSupportsInvariantTSC(); // check, if we need fallback scenario
#else
# if defined TRACY_HW_TIMER
tracy_force_inline bool HardwareSupportsInvariantTSC()
{
return true; // this is checked at startup
}
# else
tracy_force_inline bool HardwareSupportsInvariantTSC()
{
return false;
}
# endif
#endif
struct SourceLocationData
{
const char* name;
const char* function;
const char* file;
uint32_t line;
uint32_t color;
};
#ifdef TRACY_ON_DEMAND
struct LuaZoneState
{
uint32_t counter;
bool active;
};
#endif
#define TracyLfqPrepare( _type ) \
moodycamel::ConcurrentQueueDefaultTraits::index_t __magic; \
auto __token = GetToken(); \
auto& __tail = __token->get_tail_index(); \
auto item = __token->enqueue_begin( __magic ); \
MemWrite( &item->hdr.type, _type );
#define TracyLfqCommit \
__tail.store( __magic + 1, std::memory_order_release );
#define TracyLfqPrepareC( _type ) \
tracy::moodycamel::ConcurrentQueueDefaultTraits::index_t __magic; \
auto __token = tracy::GetToken(); \
auto& __tail = __token->get_tail_index(); \
auto item = __token->enqueue_begin( __magic ); \
tracy::MemWrite( &item->hdr.type, _type );
#define TracyLfqCommitC \
__tail.store( __magic + 1, std::memory_order_release );
#ifdef TRACY_FIBERS
# define TracyQueuePrepare( _type ) \
auto item = Profiler::QueueSerial(); \
MemWrite( &item->hdr.type, _type );
# define TracyQueueCommit( _name ) \
MemWrite( &item->_name.thread, GetThreadHandle() ); \
Profiler::QueueSerialFinish();
# define TracyQueuePrepareC( _type ) \
auto item = tracy::Profiler::QueueSerial(); \
tracy::MemWrite( &item->hdr.type, _type );
# define TracyQueueCommitC( _name ) \
tracy::MemWrite( &item->_name.thread, tracy::GetThreadHandle() ); \
tracy::Profiler::QueueSerialFinish();
#else
# define TracyQueuePrepare( _type ) TracyLfqPrepare( _type )
# define TracyQueueCommit( _name ) TracyLfqCommit
# define TracyQueuePrepareC( _type ) TracyLfqPrepareC( _type )
# define TracyQueueCommitC( _name ) TracyLfqCommitC
#endif
typedef void(*ParameterCallback)( void* data, uint32_t idx, int32_t val );
typedef char*(*SourceContentsCallback)( void* data, const char* filename, size_t& size );
class Profiler
{
struct FrameImageQueueItem
{
void* image;
uint32_t frame;
uint16_t w;
uint16_t h;
bool flip;
};
enum class SymbolQueueItemType
{
CallstackFrame,
SymbolQuery,
ExternalName,
KernelCode,
SourceCode
};
struct SymbolQueueItem
{
SymbolQueueItemType type;
uint64_t ptr;
uint64_t extra;
uint32_t id;
};
public:
Profiler();
~Profiler();
void SpawnWorkerThreads();
static tracy_force_inline int64_t GetTime()
{
#ifdef TRACY_HW_TIMER
# if defined TARGET_OS_IOS && TARGET_OS_IOS == 1
if( HardwareSupportsInvariantTSC() ) return mach_absolute_time();
# elif defined _WIN32
# ifdef TRACY_TIMER_QPC
return GetTimeQpc();
# else
if( HardwareSupportsInvariantTSC() ) return int64_t( __rdtsc() );
# endif
# elif defined __i386 || defined _M_IX86
if( HardwareSupportsInvariantTSC() )
{
uint32_t eax, edx;
asm volatile ( "rdtsc" : "=a" (eax), "=d" (edx) );
return ( uint64_t( edx ) << 32 ) + uint64_t( eax );
}
# elif defined __x86_64__ || defined _M_X64
if( HardwareSupportsInvariantTSC() )
{
uint64_t rax, rdx;
asm volatile ( "rdtsc" : "=a" (rax), "=d" (rdx) );
return (int64_t)(( rdx << 32 ) + rax);
}
# else
# error "TRACY_HW_TIMER detection logic needs fixing"
# endif
#endif
#if !defined TRACY_HW_TIMER || defined TRACY_TIMER_FALLBACK
# if defined __linux__ && defined CLOCK_MONOTONIC_RAW
struct timespec ts;
clock_gettime( CLOCK_MONOTONIC_RAW, &ts );
return int64_t( ts.tv_sec ) * 1000000000ll + int64_t( ts.tv_nsec );
# else
return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();
# endif
#endif
#if !defined TRACY_TIMER_FALLBACK
return 0; // unreachable branch
#endif
}
tracy_force_inline uint32_t GetNextZoneId()
{
return m_zoneId.fetch_add( 1, std::memory_order_relaxed );
}
static tracy_force_inline QueueItem* QueueSerial()
{
auto& p = GetProfiler();
p.m_serialLock.lock();
return p.m_serialQueue.prepare_next();
}
static tracy_force_inline QueueItem* QueueSerialCallstack( void* ptr )
{
auto& p = GetProfiler();
p.m_serialLock.lock();
p.SendCallstackSerial( ptr );
return p.m_serialQueue.prepare_next();
}
static tracy_force_inline void QueueSerialFinish()
{
auto& p = GetProfiler();
p.m_serialQueue.commit_next();
p.m_serialLock.unlock();
}
static tracy_force_inline void SendFrameMark( const char* name )
{
if( !name ) GetProfiler().m_frameCount.fetch_add( 1, std::memory_order_relaxed );
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
auto item = QueueSerial();
MemWrite( &item->hdr.type, QueueType::FrameMarkMsg );
MemWrite( &item->frameMark.time, GetTime() );
MemWrite( &item->frameMark.name, uint64_t( name ) );
QueueSerialFinish();
}
static tracy_force_inline void SendFrameMark( const char* name, QueueType type )
{
assert( type == QueueType::FrameMarkMsgStart || type == QueueType::FrameMarkMsgEnd );
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
auto item = QueueSerial();
MemWrite( &item->hdr.type, type );
MemWrite( &item->frameMark.time, GetTime() );
MemWrite( &item->frameMark.name, uint64_t( name ) );
QueueSerialFinish();
}
static tracy_force_inline void SendFrameImage( const void* image, uint16_t w, uint16_t h, uint8_t offset, bool flip )
{
#ifndef TRACY_NO_FRAME_IMAGE
auto& profiler = GetProfiler();
assert( profiler.m_frameCount.load( std::memory_order_relaxed ) < std::numeric_limits<uint32_t>::max() );
# ifdef TRACY_ON_DEMAND
if( !profiler.IsConnected() ) return;
# endif
const auto sz = size_t( w ) * size_t( h ) * 4;
auto ptr = (char*)tracy_malloc( sz );
memcpy( ptr, image, sz );
profiler.m_fiLock.lock();
auto fi = profiler.m_fiQueue.prepare_next();
fi->image = ptr;
fi->frame = uint32_t( profiler.m_frameCount.load( std::memory_order_relaxed ) - offset );
fi->w = w;
fi->h = h;
fi->flip = flip;
profiler.m_fiQueue.commit_next();
profiler.m_fiLock.unlock();
#endif
}
static tracy_force_inline void PlotData( const char* name, int64_t val )
{
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
TracyLfqPrepare( QueueType::PlotDataInt );
MemWrite( &item->plotDataInt.name, (uint64_t)name );
MemWrite( &item->plotDataInt.time, GetTime() );
MemWrite( &item->plotDataInt.val, val );
TracyLfqCommit;
}
static tracy_force_inline void PlotData( const char* name, float val )
{
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
TracyLfqPrepare( QueueType::PlotDataFloat );
MemWrite( &item->plotDataFloat.name, (uint64_t)name );
MemWrite( &item->plotDataFloat.time, GetTime() );
MemWrite( &item->plotDataFloat.val, val );
TracyLfqCommit;
}
static tracy_force_inline void PlotData( const char* name, double val )
{
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
TracyLfqPrepare( QueueType::PlotDataDouble );
MemWrite( &item->plotDataDouble.name, (uint64_t)name );
MemWrite( &item->plotDataDouble.time, GetTime() );
MemWrite( &item->plotDataDouble.val, val );
TracyLfqCommit;
}
static tracy_force_inline void ConfigurePlot( const char* name, PlotFormatType type, bool step, bool fill, uint32_t color )
{
TracyLfqPrepare( QueueType::PlotConfig );
MemWrite( &item->plotConfig.name, (uint64_t)name );
MemWrite( &item->plotConfig.type, (uint8_t)type );
MemWrite( &item->plotConfig.step, (uint8_t)step );
MemWrite( &item->plotConfig.fill, (uint8_t)fill );
MemWrite( &item->plotConfig.color, color );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
TracyLfqCommit;
}
static tracy_force_inline void Message( const char* txt, size_t size, int callstack )
{
assert( size < std::numeric_limits<uint16_t>::max() );
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
if( callstack != 0 )
{
tracy::GetProfiler().SendCallstack( callstack );
}
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, txt, size );
TracyQueuePrepare( callstack == 0 ? QueueType::Message : QueueType::MessageCallstack );
MemWrite( &item->messageFat.time, GetTime() );
MemWrite( &item->messageFat.text, (uint64_t)ptr );
MemWrite( &item->messageFat.size, (uint16_t)size );
TracyQueueCommit( messageFatThread );
}
static tracy_force_inline void Message( const char* txt, int callstack )
{
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
if( callstack != 0 )
{
tracy::GetProfiler().SendCallstack( callstack );
}
TracyQueuePrepare( callstack == 0 ? QueueType::MessageLiteral : QueueType::MessageLiteralCallstack );
MemWrite( &item->messageLiteral.time, GetTime() );
MemWrite( &item->messageLiteral.text, (uint64_t)txt );
TracyQueueCommit( messageLiteralThread );
}
static tracy_force_inline void MessageColor( const char* txt, size_t size, uint32_t color, int callstack )
{
assert( size < std::numeric_limits<uint16_t>::max() );
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
if( callstack != 0 )
{
tracy::GetProfiler().SendCallstack( callstack );
}
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, txt, size );
TracyQueuePrepare( callstack == 0 ? QueueType::MessageColor : QueueType::MessageColorCallstack );
MemWrite( &item->messageColorFat.time, GetTime() );
MemWrite( &item->messageColorFat.text, (uint64_t)ptr );
MemWrite( &item->messageColorFat.r, uint8_t( ( color ) & 0xFF ) );
MemWrite( &item->messageColorFat.g, uint8_t( ( color >> 8 ) & 0xFF ) );
MemWrite( &item->messageColorFat.b, uint8_t( ( color >> 16 ) & 0xFF ) );
MemWrite( &item->messageColorFat.size, (uint16_t)size );
TracyQueueCommit( messageColorFatThread );
}
static tracy_force_inline void MessageColor( const char* txt, uint32_t color, int callstack )
{
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
if( callstack != 0 )
{
tracy::GetProfiler().SendCallstack( callstack );
}
TracyQueuePrepare( callstack == 0 ? QueueType::MessageLiteralColor : QueueType::MessageLiteralColorCallstack );
MemWrite( &item->messageColorLiteral.time, GetTime() );
MemWrite( &item->messageColorLiteral.text, (uint64_t)txt );
MemWrite( &item->messageColorLiteral.r, uint8_t( ( color ) & 0xFF ) );
MemWrite( &item->messageColorLiteral.g, uint8_t( ( color >> 8 ) & 0xFF ) );
MemWrite( &item->messageColorLiteral.b, uint8_t( ( color >> 16 ) & 0xFF ) );
TracyQueueCommit( messageColorLiteralThread );
}
static tracy_force_inline void MessageAppInfo( const char* txt, size_t size )
{
assert( size < std::numeric_limits<uint16_t>::max() );
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, txt, size );
TracyLfqPrepare( QueueType::MessageAppInfo );
MemWrite( &item->messageFat.time, GetTime() );
MemWrite( &item->messageFat.text, (uint64_t)ptr );
MemWrite( &item->messageFat.size, (uint16_t)size );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
TracyLfqCommit;
}
static tracy_force_inline void MemAlloc( const void* ptr, size_t size, bool secure )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
const auto thread = GetThreadHandle();
GetProfiler().m_serialLock.lock();
SendMemAlloc( QueueType::MemAlloc, thread, ptr, size );
GetProfiler().m_serialLock.unlock();
}
static tracy_force_inline void MemFree( const void* ptr, bool secure )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
const auto thread = GetThreadHandle();
GetProfiler().m_serialLock.lock();
SendMemFree( QueueType::MemFree, thread, ptr );
GetProfiler().m_serialLock.unlock();
}
static tracy_force_inline void MemAllocCallstack( const void* ptr, size_t size, int depth, bool secure )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_HAS_CALLSTACK
auto& profiler = GetProfiler();
# ifdef TRACY_ON_DEMAND
if( !profiler.IsConnected() ) return;
# endif
const auto thread = GetThreadHandle();
auto callstack = Callstack( depth );
profiler.m_serialLock.lock();
SendCallstackSerial( callstack );
SendMemAlloc( QueueType::MemAllocCallstack, thread, ptr, size );
profiler.m_serialLock.unlock();
#else
static_cast<void>(depth); // unused
MemAlloc( ptr, size, secure );
#endif
}
static tracy_force_inline void MemFreeCallstack( const void* ptr, int depth, bool secure )
{
if( secure && !ProfilerAvailable() ) return;
if( !ProfilerAllocatorAvailable() )
{
MemFree( ptr, secure );
return;
}
#ifdef TRACY_HAS_CALLSTACK
auto& profiler = GetProfiler();
# ifdef TRACY_ON_DEMAND
if( !profiler.IsConnected() ) return;
# endif
const auto thread = GetThreadHandle();
auto callstack = Callstack( depth );
profiler.m_serialLock.lock();
SendCallstackSerial( callstack );
SendMemFree( QueueType::MemFreeCallstack, thread, ptr );
profiler.m_serialLock.unlock();
#else
static_cast<void>(depth); // unused
MemFree( ptr, secure );
#endif
}
static tracy_force_inline void MemAllocNamed( const void* ptr, size_t size, bool secure, const char* name )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
const auto thread = GetThreadHandle();
GetProfiler().m_serialLock.lock();
SendMemName( name );
SendMemAlloc( QueueType::MemAllocNamed, thread, ptr, size );
GetProfiler().m_serialLock.unlock();
}
static tracy_force_inline void MemFreeNamed( const void* ptr, bool secure, const char* name )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return;
#endif
const auto thread = GetThreadHandle();
GetProfiler().m_serialLock.lock();
SendMemName( name );
SendMemFree( QueueType::MemFreeNamed, thread, ptr );
GetProfiler().m_serialLock.unlock();
}
static tracy_force_inline void MemAllocCallstackNamed( const void* ptr, size_t size, int depth, bool secure, const char* name )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_HAS_CALLSTACK
auto& profiler = GetProfiler();
# ifdef TRACY_ON_DEMAND
if( !profiler.IsConnected() ) return;
# endif
const auto thread = GetThreadHandle();
auto callstack = Callstack( depth );
profiler.m_serialLock.lock();
SendCallstackSerial( callstack );
SendMemName( name );
SendMemAlloc( QueueType::MemAllocCallstackNamed, thread, ptr, size );
profiler.m_serialLock.unlock();
#else
static_cast<void>(depth); // unused
static_cast<void>(name); // unused
MemAlloc( ptr, size, secure );
#endif
}
static tracy_force_inline void MemFreeCallstackNamed( const void* ptr, int depth, bool secure, const char* name )
{
if( secure && !ProfilerAvailable() ) return;
#ifdef TRACY_HAS_CALLSTACK
auto& profiler = GetProfiler();
# ifdef TRACY_ON_DEMAND
if( !profiler.IsConnected() ) return;
# endif
const auto thread = GetThreadHandle();
auto callstack = Callstack( depth );
profiler.m_serialLock.lock();
SendCallstackSerial( callstack );
SendMemName( name );
SendMemFree( QueueType::MemFreeCallstackNamed, thread, ptr );
profiler.m_serialLock.unlock();
#else
static_cast<void>(depth); // unused
static_cast<void>(name); // unused
MemFree( ptr, secure );
#endif
}
static tracy_force_inline void SendCallstack( int depth )
{
#ifdef TRACY_HAS_CALLSTACK
auto ptr = Callstack( depth );
TracyQueuePrepare( QueueType::Callstack );
MemWrite( &item->callstackFat.ptr, (uint64_t)ptr );
TracyQueueCommit( callstackFatThread );
#else
static_cast<void>(depth); // unused
#endif
}
static tracy_force_inline void ParameterRegister( ParameterCallback cb, void* data )
{
auto& profiler = GetProfiler();
profiler.m_paramCallback = cb;
profiler.m_paramCallbackData = data;
}
static tracy_force_inline void ParameterSetup( uint32_t idx, const char* name, bool isBool, int32_t val )
{
TracyLfqPrepare( QueueType::ParamSetup );
tracy::MemWrite( &item->paramSetup.idx, idx );
tracy::MemWrite( &item->paramSetup.name, (uint64_t)name );
tracy::MemWrite( &item->paramSetup.isBool, (uint8_t)isBool );
tracy::MemWrite( &item->paramSetup.val, val );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
TracyLfqCommit;
}
static tracy_force_inline void SourceCallbackRegister( SourceContentsCallback cb, void* data )
{
auto& profiler = GetProfiler();
profiler.m_sourceCallback = cb;
profiler.m_sourceCallbackData = data;
}
#ifdef TRACY_FIBERS
static tracy_force_inline void EnterFiber( const char* fiber )
{
TracyQueuePrepare( QueueType::FiberEnter );
MemWrite( &item->fiberEnter.time, GetTime() );
MemWrite( &item->fiberEnter.fiber, (uint64_t)fiber );
TracyQueueCommit( fiberEnter );
}
static tracy_force_inline void LeaveFiber()
{
TracyQueuePrepare( QueueType::FiberLeave );
MemWrite( &item->fiberLeave.time, GetTime() );
TracyQueueCommit( fiberLeave );
}
#endif
void SendCallstack( int depth, const char* skipBefore );
static void CutCallstack( void* callstack, const char* skipBefore );
static bool ShouldExit();
tracy_force_inline bool IsConnected() const
{
return m_isConnected.load( std::memory_order_acquire );
}
#ifdef TRACY_ON_DEMAND
tracy_force_inline uint64_t ConnectionId() const
{
return m_connectionId.load( std::memory_order_acquire );
}
tracy_force_inline void DeferItem( const QueueItem& item )
{
m_deferredLock.lock();
auto dst = m_deferredQueue.push_next();
memcpy( dst, &item, sizeof( item ) );
m_deferredLock.unlock();
}
#endif
void RequestShutdown() { m_shutdown.store( true, std::memory_order_relaxed ); m_shutdownManual.store( true, std::memory_order_relaxed ); }
bool HasShutdownFinished() const { return m_shutdownFinished.load( std::memory_order_relaxed ); }
void SendString( uint64_t str, const char* ptr, QueueType type ) { SendString( str, ptr, strlen( ptr ), type ); }
void SendString( uint64_t str, const char* ptr, size_t len, QueueType type );
void SendSingleString( const char* ptr ) { SendSingleString( ptr, strlen( ptr ) ); }
void SendSingleString( const char* ptr, size_t len );
void SendSecondString( const char* ptr ) { SendSecondString( ptr, strlen( ptr ) ); }
void SendSecondString( const char* ptr, size_t len );
// Allocated source location data layout:
// 2b payload size
// 4b color
// 4b source line
// fsz function name
// 1b null terminator
// ssz source file name
// 1b null terminator
// nsz zone name (optional)
static tracy_force_inline uint64_t AllocSourceLocation( uint32_t line, const char* source, const char* function )
{
return AllocSourceLocation( line, source, function, nullptr, 0 );
}
static tracy_force_inline uint64_t AllocSourceLocation( uint32_t line, const char* source, const char* function, const char* name, size_t nameSz )
{
return AllocSourceLocation( line, source, strlen(source), function, strlen(function), name, nameSz );
}
static tracy_force_inline uint64_t AllocSourceLocation( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz )
{
return AllocSourceLocation( line, source, sourceSz, function, functionSz, nullptr, 0 );
}
static tracy_force_inline uint64_t AllocSourceLocation( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz )
{
const auto sz32 = uint32_t( 2 + 4 + 4 + functionSz + 1 + sourceSz + 1 + nameSz );
assert( sz32 <= std::numeric_limits<uint16_t>::max() );
const auto sz = uint16_t( sz32 );
auto ptr = (char*)tracy_malloc( sz );
memcpy( ptr, &sz, 2 );
memset( ptr + 2, 0, 4 );
memcpy( ptr + 6, &line, 4 );
memcpy( ptr + 10, function, functionSz );
ptr[10 + functionSz] = '\0';
memcpy( ptr + 10 + functionSz + 1, source, sourceSz );
ptr[10 + functionSz + 1 + sourceSz] = '\0';
if( nameSz != 0 )
{
memcpy( ptr + 10 + functionSz + 1 + sourceSz + 1, name, nameSz );
}
return uint64_t( ptr );
}
private:
enum class DequeueStatus { DataDequeued, ConnectionLost, QueueEmpty };
enum class ThreadCtxStatus { Same, Changed, ConnectionLost };
static void LaunchWorker( void* ptr ) { ((Profiler*)ptr)->Worker(); }
void Worker();
#ifndef TRACY_NO_FRAME_IMAGE
static void LaunchCompressWorker( void* ptr ) { ((Profiler*)ptr)->CompressWorker(); }
void CompressWorker();
#endif
#ifdef TRACY_HAS_CALLSTACK
static void LaunchSymbolWorker( void* ptr ) { ((Profiler*)ptr)->SymbolWorker(); }
void SymbolWorker();
void HandleSymbolQueueItem( const SymbolQueueItem& si );
#endif
void ClearQueues( tracy::moodycamel::ConsumerToken& token );
void ClearSerial();
DequeueStatus Dequeue( tracy::moodycamel::ConsumerToken& token );
DequeueStatus DequeueContextSwitches( tracy::moodycamel::ConsumerToken& token, int64_t& timeStop );
DequeueStatus DequeueSerial();
ThreadCtxStatus ThreadCtxCheck( uint32_t threadId );
bool CommitData();
tracy_force_inline bool AppendData( const void* data, size_t len )
{
const auto ret = NeedDataSize( len );
AppendDataUnsafe( data, len );
return ret;
}
tracy_force_inline bool NeedDataSize( size_t len )
{
assert( len <= TargetFrameSize );
bool ret = true;
if( m_bufferOffset - m_bufferStart + (int)len > TargetFrameSize )
{
ret = CommitData();
}
return ret;
}
tracy_force_inline void AppendDataUnsafe( const void* data, size_t len )
{
memcpy( m_buffer + m_bufferOffset, data, len );
m_bufferOffset += int( len );
}
bool SendData( const char* data, size_t len );
void SendLongString( uint64_t ptr, const char* str, size_t len, QueueType type );
void SendSourceLocation( uint64_t ptr );
void SendSourceLocationPayload( uint64_t ptr );
void SendCallstackPayload( uint64_t ptr );
void SendCallstackPayload64( uint64_t ptr );
void SendCallstackAlloc( uint64_t ptr );
void QueueCallstackFrame( uint64_t ptr );
void QueueSymbolQuery( uint64_t symbol );
void QueueExternalName( uint64_t ptr );
void QueueKernelCode( uint64_t symbol, uint32_t size );
void QueueSourceCodeQuery( uint32_t id );
bool HandleServerQuery();
void HandleDisconnect();
void HandleParameter( uint64_t payload );
void HandleSymbolCodeQuery( uint64_t symbol, uint32_t size );
void HandleSourceCodeQuery( char* data, char* image, uint32_t id );
void AckServerQuery();
void AckSymbolCodeNotAvailable();
void CalibrateTimer();
void CalibrateDelay();
void ReportTopology();
static tracy_force_inline void SendCallstackSerial( void* ptr )
{
#ifdef TRACY_HAS_CALLSTACK
auto item = GetProfiler().m_serialQueue.prepare_next();
MemWrite( &item->hdr.type, QueueType::CallstackSerial );
MemWrite( &item->callstackFat.ptr, (uint64_t)ptr );
GetProfiler().m_serialQueue.commit_next();
#else
static_cast<void>(ptr); // unused
#endif
}
static tracy_force_inline void SendMemAlloc( QueueType type, const uint32_t thread, const void* ptr, size_t size )
{
assert( type == QueueType::MemAlloc || type == QueueType::MemAllocCallstack || type == QueueType::MemAllocNamed || type == QueueType::MemAllocCallstackNamed );
auto item = GetProfiler().m_serialQueue.prepare_next();
MemWrite( &item->hdr.type, type );
MemWrite( &item->memAlloc.time, GetTime() );
MemWrite( &item->memAlloc.thread, thread );
MemWrite( &item->memAlloc.ptr, (uint64_t)ptr );
if( compile_time_condition<sizeof( size ) == 4>::value )
{
memcpy( &item->memAlloc.size, &size, 4 );
memset( &item->memAlloc.size + 4, 0, 2 );
}
else
{
assert( sizeof( size ) == 8 );
memcpy( &item->memAlloc.size, &size, 4 );
memcpy( ((char*)&item->memAlloc.size)+4, ((char*)&size)+4, 2 );
}
GetProfiler().m_serialQueue.commit_next();
}
static tracy_force_inline void SendMemFree( QueueType type, const uint32_t thread, const void* ptr )
{
assert( type == QueueType::MemFree || type == QueueType::MemFreeCallstack || type == QueueType::MemFreeNamed || type == QueueType::MemFreeCallstackNamed );
auto item = GetProfiler().m_serialQueue.prepare_next();
MemWrite( &item->hdr.type, type );
MemWrite( &item->memFree.time, GetTime() );
MemWrite( &item->memFree.thread, thread );
MemWrite( &item->memFree.ptr, (uint64_t)ptr );
GetProfiler().m_serialQueue.commit_next();
}
static tracy_force_inline void SendMemName( const char* name )
{
assert( name );
auto item = GetProfiler().m_serialQueue.prepare_next();
MemWrite( &item->hdr.type, QueueType::MemNamePayload );
MemWrite( &item->memName.name, (uint64_t)name );
GetProfiler().m_serialQueue.commit_next();
}
#if defined _WIN32 && defined TRACY_TIMER_QPC
static int64_t GetTimeQpc();
#endif
double m_timerMul;
uint64_t m_resolution;
uint64_t m_delay;
std::atomic<int64_t> m_timeBegin;
uint32_t m_mainThread;
uint64_t m_epoch, m_exectime;
std::atomic<bool> m_shutdown;
std::atomic<bool> m_shutdownManual;
std::atomic<bool> m_shutdownFinished;
Socket* m_sock;
UdpBroadcast* m_broadcast;
bool m_noExit;
uint32_t m_userPort;
std::atomic<uint32_t> m_zoneId;
int64_t m_samplingPeriod;
uint32_t m_threadCtx;
int64_t m_refTimeThread;
int64_t m_refTimeSerial;
int64_t m_refTimeCtx;
int64_t m_refTimeGpu;
void* m_stream; // LZ4_stream_t*
char* m_buffer;
int m_bufferOffset;
int m_bufferStart;
char* m_lz4Buf;
FastVector<QueueItem> m_serialQueue, m_serialDequeue;
TracyMutex m_serialLock;
#ifndef TRACY_NO_FRAME_IMAGE
FastVector<FrameImageQueueItem> m_fiQueue, m_fiDequeue;
TracyMutex m_fiLock;
#endif
SPSCQueue<SymbolQueueItem> m_symbolQueue;
std::atomic<uint64_t> m_frameCount;
std::atomic<bool> m_isConnected;
#ifdef TRACY_ON_DEMAND
std::atomic<uint64_t> m_connectionId;
TracyMutex m_deferredLock;
FastVector<QueueItem> m_deferredQueue;
#endif
#ifdef TRACY_HAS_SYSTIME
void ProcessSysTime();
SysTime m_sysTime;
uint64_t m_sysTimeLast = 0;
#else
void ProcessSysTime() {}
#endif
ParameterCallback m_paramCallback;
void* m_paramCallbackData;
SourceContentsCallback m_sourceCallback;
void* m_sourceCallbackData;
char* m_queryImage;
char* m_queryData;
char* m_queryDataPtr;
#if defined _WIN32
void* m_exceptionHandler;
#endif
#ifdef __linux__
struct {
struct sigaction pwr, ill, fpe, segv, pipe, bus, abrt;
} m_prevSignal;
#endif
bool m_crashHandlerInstalled;
};
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyThread.hpp | #ifndef __TRACYTHREAD_HPP__
#define __TRACYTHREAD_HPP__
#if defined _WIN32
# include <windows.h>
#else
# include <pthread.h>
#endif
#ifdef TRACY_MANUAL_LIFETIME
# include "tracy_rpmalloc.hpp"
#endif
namespace tracy
{
#ifdef TRACY_MANUAL_LIFETIME
extern thread_local bool RpThreadInitDone;
#endif
class ThreadExitHandler
{
public:
~ThreadExitHandler()
{
#ifdef TRACY_MANUAL_LIFETIME
rpmalloc_thread_finalize( 1 );
RpThreadInitDone = false;
#endif
}
};
#if defined _WIN32
class Thread
{
public:
Thread( void(*func)( void* ptr ), void* ptr )
: m_func( func )
, m_ptr( ptr )
, m_hnd( CreateThread( nullptr, 0, Launch, this, 0, nullptr ) )
{}
~Thread()
{
WaitForSingleObject( m_hnd, INFINITE );
CloseHandle( m_hnd );
}
HANDLE Handle() const { return m_hnd; }
private:
static DWORD WINAPI Launch( void* ptr ) { ((Thread*)ptr)->m_func( ((Thread*)ptr)->m_ptr ); return 0; }
void(*m_func)( void* ptr );
void* m_ptr;
HANDLE m_hnd;
};
#else
class Thread
{
public:
Thread( void(*func)( void* ptr ), void* ptr )
: m_func( func )
, m_ptr( ptr )
{
pthread_create( &m_thread, nullptr, Launch, this );
}
~Thread()
{
pthread_join( m_thread, nullptr );
}
pthread_t Handle() const { return m_thread; }
private:
static void* Launch( void* ptr ) { ((Thread*)ptr)->m_func( ((Thread*)ptr)->m_ptr ); return nullptr; }
void(*m_func)( void* ptr );
void* m_ptr;
pthread_t m_thread;
};
#endif
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/tracy_concurrentqueue.h | // Provides a C++11 implementation of a multi-producer, multi-consumer lock-free queue.
// An overview, including benchmark results, is provided here:
// http://moodycamel.com/blog/2014/a-fast-general-purpose-lock-free-queue-for-c++
// The full design is also described in excruciating detail at:
// http://moodycamel.com/blog/2014/detailed-design-of-a-lock-free-queue
// Simplified BSD license:
// Copyright (c) 2013-2016, Cameron Desrochers.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice, this list of
// conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
// OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
// TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#pragma once
#include "../common/TracyAlloc.hpp"
#include "../common/TracyForceInline.hpp"
#include "../common/TracySystem.hpp"
#if defined(__GNUC__)
// Disable -Wconversion warnings (spuriously triggered when Traits::size_t and
// Traits::index_t are set to < 32 bits, causing integer promotion, causing warnings
// upon assigning any computed values)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
#if defined(__APPLE__)
#include "TargetConditionals.h"
#endif
#include <atomic> // Requires C++11. Sorry VS2010.
#include <cassert>
#include <cstddef> // for max_align_t
#include <cstdint>
#include <cstdlib>
#include <type_traits>
#include <algorithm>
#include <utility>
#include <limits>
#include <climits> // for CHAR_BIT
#include <array>
#include <thread> // partly for __WINPTHREADS_VERSION if on MinGW-w64 w/ POSIX threading
namespace tracy
{
// Compiler-specific likely/unlikely hints
namespace moodycamel { namespace details {
#if defined(__GNUC__)
inline bool cqLikely(bool x) { return __builtin_expect((x), true); }
inline bool cqUnlikely(bool x) { return __builtin_expect((x), false); }
#else
inline bool cqLikely(bool x) { return x; }
inline bool cqUnlikely(bool x) { return x; }
#endif
} }
namespace
{
// to avoid MSVC warning 4127: conditional expression is constant
template <bool>
struct compile_time_condition
{
static const bool value = false;
};
template <>
struct compile_time_condition<true>
{
static const bool value = true;
};
}
namespace moodycamel {
namespace details {
template<typename T>
struct const_numeric_max {
static_assert(std::is_integral<T>::value, "const_numeric_max can only be used with integers");
static const T value = std::numeric_limits<T>::is_signed
? (static_cast<T>(1) << (sizeof(T) * CHAR_BIT - 1)) - static_cast<T>(1)
: static_cast<T>(-1);
};
#if defined(__GLIBCXX__)
typedef ::max_align_t std_max_align_t; // libstdc++ forgot to add it to std:: for a while
#else
typedef std::max_align_t std_max_align_t; // Others (e.g. MSVC) insist it can *only* be accessed via std::
#endif
// Some platforms have incorrectly set max_align_t to a type with <8 bytes alignment even while supporting
// 8-byte aligned scalar values (*cough* 32-bit iOS). Work around this with our own union. See issue #64.
typedef union {
std_max_align_t x;
long long y;
void* z;
} max_align_t;
}
// Default traits for the ConcurrentQueue. To change some of the
// traits without re-implementing all of them, inherit from this
// struct and shadow the declarations you wish to be different;
// since the traits are used as a template type parameter, the
// shadowed declarations will be used where defined, and the defaults
// otherwise.
struct ConcurrentQueueDefaultTraits
{
// General-purpose size type. std::size_t is strongly recommended.
typedef std::size_t size_t;
// The type used for the enqueue and dequeue indices. Must be at least as
// large as size_t. Should be significantly larger than the number of elements
// you expect to hold at once, especially if you have a high turnover rate;
// for example, on 32-bit x86, if you expect to have over a hundred million
// elements or pump several million elements through your queue in a very
// short space of time, using a 32-bit type *may* trigger a race condition.
// A 64-bit int type is recommended in that case, and in practice will
// prevent a race condition no matter the usage of the queue. Note that
// whether the queue is lock-free with a 64-int type depends on the whether
// std::atomic<std::uint64_t> is lock-free, which is platform-specific.
typedef std::size_t index_t;
// Internally, all elements are enqueued and dequeued from multi-element
// blocks; this is the smallest controllable unit. If you expect few elements
// but many producers, a smaller block size should be favoured. For few producers
// and/or many elements, a larger block size is preferred. A sane default
// is provided. Must be a power of 2.
static const size_t BLOCK_SIZE = 64*1024;
// For explicit producers (i.e. when using a producer token), the block is
// checked for being empty by iterating through a list of flags, one per element.
// For large block sizes, this is too inefficient, and switching to an atomic
// counter-based approach is faster. The switch is made for block sizes strictly
// larger than this threshold.
static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = 32;
// How many full blocks can be expected for a single explicit producer? This should
// reflect that number's maximum for optimal performance. Must be a power of 2.
static const size_t EXPLICIT_INITIAL_INDEX_SIZE = 32;
// Controls the number of items that an explicit consumer (i.e. one with a token)
// must consume before it causes all consumers to rotate and move on to the next
// internal queue.
static const std::uint32_t EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE = 256;
// The maximum number of elements (inclusive) that can be enqueued to a sub-queue.
// Enqueue operations that would cause this limit to be surpassed will fail. Note
// that this limit is enforced at the block level (for performance reasons), i.e.
// it's rounded up to the nearest block size.
static const size_t MAX_SUBQUEUE_SIZE = details::const_numeric_max<size_t>::value;
// Memory allocation can be customized if needed.
// malloc should return nullptr on failure, and handle alignment like std::malloc.
#if defined(malloc) || defined(free)
// Gah, this is 2015, stop defining macros that break standard code already!
// Work around malloc/free being special macros:
static inline void* WORKAROUND_malloc(size_t size) { return malloc(size); }
static inline void WORKAROUND_free(void* ptr) { return free(ptr); }
static inline void* (malloc)(size_t size) { return WORKAROUND_malloc(size); }
static inline void (free)(void* ptr) { return WORKAROUND_free(ptr); }
#else
static inline void* malloc(size_t size) { return tracy::tracy_malloc(size); }
static inline void free(void* ptr) { return tracy::tracy_free(ptr); }
#endif
};
// When producing or consuming many elements, the most efficient way is to:
// 1) Use one of the bulk-operation methods of the queue with a token
// 2) Failing that, use the bulk-operation methods without a token
// 3) Failing that, create a token and use that with the single-item methods
// 4) Failing that, use the single-parameter methods of the queue
// Having said that, don't create tokens willy-nilly -- ideally there should be
// a maximum of one token per thread (of each kind).
struct ProducerToken;
struct ConsumerToken;
template<typename T, typename Traits> class ConcurrentQueue;
namespace details
{
struct ConcurrentQueueProducerTypelessBase
{
ConcurrentQueueProducerTypelessBase* next;
std::atomic<bool> inactive;
ProducerToken* token;
uint32_t threadId;
ConcurrentQueueProducerTypelessBase()
: next(nullptr), inactive(false), token(nullptr), threadId(0)
{
}
};
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4554)
#endif
template<typename T>
static inline bool circular_less_than(T a, T b)
{
static_assert(std::is_integral<T>::value && !std::numeric_limits<T>::is_signed, "circular_less_than is intended to be used only with unsigned integer types");
return static_cast<T>(a - b) > (static_cast<T>(static_cast<T>(1) << static_cast<T>(sizeof(T) * CHAR_BIT - 1)));
}
#ifdef _MSC_VER
#pragma warning(pop)
#endif
template<typename U>
static inline char* align_for(char* ptr)
{
const std::size_t alignment = std::alignment_of<U>::value;
return ptr + (alignment - (reinterpret_cast<std::uintptr_t>(ptr) % alignment)) % alignment;
}
template<typename T>
static inline T ceil_to_pow_2(T x)
{
static_assert(std::is_integral<T>::value && !std::numeric_limits<T>::is_signed, "ceil_to_pow_2 is intended to be used only with unsigned integer types");
// Adapted from http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
--x;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
for (std::size_t i = 1; i < sizeof(T); i <<= 1) {
x |= x >> (i << 3);
}
++x;
return x;
}
template<typename T>
static inline void swap_relaxed(std::atomic<T>& left, std::atomic<T>& right)
{
T temp = std::move(left.load(std::memory_order_relaxed));
left.store(std::move(right.load(std::memory_order_relaxed)), std::memory_order_relaxed);
right.store(std::move(temp), std::memory_order_relaxed);
}
template<typename T>
static inline T const& nomove(T const& x)
{
return x;
}
template<bool Enable>
struct nomove_if
{
template<typename T>
static inline T const& eval(T const& x)
{
return x;
}
};
template<>
struct nomove_if<false>
{
template<typename U>
static inline auto eval(U&& x)
-> decltype(std::forward<U>(x))
{
return std::forward<U>(x);
}
};
template<typename It>
static inline auto deref_noexcept(It& it) noexcept -> decltype(*it)
{
return *it;
}
#if defined(__clang__) || !defined(__GNUC__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
template<typename T> struct is_trivially_destructible : std::is_trivially_destructible<T> { };
#else
template<typename T> struct is_trivially_destructible : std::has_trivial_destructor<T> { };
#endif
template<typename T> struct static_is_lock_free_num { enum { value = 0 }; };
template<> struct static_is_lock_free_num<signed char> { enum { value = ATOMIC_CHAR_LOCK_FREE }; };
template<> struct static_is_lock_free_num<short> { enum { value = ATOMIC_SHORT_LOCK_FREE }; };
template<> struct static_is_lock_free_num<int> { enum { value = ATOMIC_INT_LOCK_FREE }; };
template<> struct static_is_lock_free_num<long> { enum { value = ATOMIC_LONG_LOCK_FREE }; };
template<> struct static_is_lock_free_num<long long> { enum { value = ATOMIC_LLONG_LOCK_FREE }; };
template<typename T> struct static_is_lock_free : static_is_lock_free_num<typename std::make_signed<T>::type> { };
template<> struct static_is_lock_free<bool> { enum { value = ATOMIC_BOOL_LOCK_FREE }; };
template<typename U> struct static_is_lock_free<U*> { enum { value = ATOMIC_POINTER_LOCK_FREE }; };
}
struct ProducerToken
{
template<typename T, typename Traits>
explicit ProducerToken(ConcurrentQueue<T, Traits>& queue);
ProducerToken(ProducerToken&& other) noexcept
: producer(other.producer)
{
other.producer = nullptr;
if (producer != nullptr) {
producer->token = this;
}
}
inline ProducerToken& operator=(ProducerToken&& other) noexcept
{
swap(other);
return *this;
}
void swap(ProducerToken& other) noexcept
{
std::swap(producer, other.producer);
if (producer != nullptr) {
producer->token = this;
}
if (other.producer != nullptr) {
other.producer->token = &other;
}
}
// A token is always valid unless:
// 1) Memory allocation failed during construction
// 2) It was moved via the move constructor
// (Note: assignment does a swap, leaving both potentially valid)
// 3) The associated queue was destroyed
// Note that if valid() returns true, that only indicates
// that the token is valid for use with a specific queue,
// but not which one; that's up to the user to track.
inline bool valid() const { return producer != nullptr; }
~ProducerToken()
{
if (producer != nullptr) {
producer->token = nullptr;
producer->inactive.store(true, std::memory_order_release);
}
}
// Disable copying and assignment
ProducerToken(ProducerToken const&) = delete;
ProducerToken& operator=(ProducerToken const&) = delete;
private:
template<typename T, typename Traits> friend class ConcurrentQueue;
protected:
details::ConcurrentQueueProducerTypelessBase* producer;
};
struct ConsumerToken
{
template<typename T, typename Traits>
explicit ConsumerToken(ConcurrentQueue<T, Traits>& q);
ConsumerToken(ConsumerToken&& other) noexcept
: initialOffset(other.initialOffset), lastKnownGlobalOffset(other.lastKnownGlobalOffset), itemsConsumedFromCurrent(other.itemsConsumedFromCurrent), currentProducer(other.currentProducer), desiredProducer(other.desiredProducer)
{
}
inline ConsumerToken& operator=(ConsumerToken&& other) noexcept
{
swap(other);
return *this;
}
void swap(ConsumerToken& other) noexcept
{
std::swap(initialOffset, other.initialOffset);
std::swap(lastKnownGlobalOffset, other.lastKnownGlobalOffset);
std::swap(itemsConsumedFromCurrent, other.itemsConsumedFromCurrent);
std::swap(currentProducer, other.currentProducer);
std::swap(desiredProducer, other.desiredProducer);
}
// Disable copying and assignment
ConsumerToken(ConsumerToken const&) = delete;
ConsumerToken& operator=(ConsumerToken const&) = delete;
private:
template<typename T, typename Traits> friend class ConcurrentQueue;
private: // but shared with ConcurrentQueue
std::uint32_t initialOffset;
std::uint32_t lastKnownGlobalOffset;
std::uint32_t itemsConsumedFromCurrent;
details::ConcurrentQueueProducerTypelessBase* currentProducer;
details::ConcurrentQueueProducerTypelessBase* desiredProducer;
};
template<typename T, typename Traits = ConcurrentQueueDefaultTraits>
class ConcurrentQueue
{
public:
struct ExplicitProducer;
typedef moodycamel::ProducerToken producer_token_t;
typedef moodycamel::ConsumerToken consumer_token_t;
typedef typename Traits::index_t index_t;
typedef typename Traits::size_t size_t;
static const size_t BLOCK_SIZE = static_cast<size_t>(Traits::BLOCK_SIZE);
static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = static_cast<size_t>(Traits::EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD);
static const size_t EXPLICIT_INITIAL_INDEX_SIZE = static_cast<size_t>(Traits::EXPLICIT_INITIAL_INDEX_SIZE);
static const std::uint32_t EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE = static_cast<std::uint32_t>(Traits::EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE);
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4307) // + integral constant overflow (that's what the ternary expression is for!)
#pragma warning(disable: 4309) // static_cast: Truncation of constant value
#endif
static const size_t MAX_SUBQUEUE_SIZE = (details::const_numeric_max<size_t>::value - static_cast<size_t>(Traits::MAX_SUBQUEUE_SIZE) < BLOCK_SIZE) ? details::const_numeric_max<size_t>::value : ((static_cast<size_t>(Traits::MAX_SUBQUEUE_SIZE) + (BLOCK_SIZE - 1)) / BLOCK_SIZE * BLOCK_SIZE);
#ifdef _MSC_VER
#pragma warning(pop)
#endif
static_assert(!std::numeric_limits<size_t>::is_signed && std::is_integral<size_t>::value, "Traits::size_t must be an unsigned integral type");
static_assert(!std::numeric_limits<index_t>::is_signed && std::is_integral<index_t>::value, "Traits::index_t must be an unsigned integral type");
static_assert(sizeof(index_t) >= sizeof(size_t), "Traits::index_t must be at least as wide as Traits::size_t");
static_assert((BLOCK_SIZE > 1) && !(BLOCK_SIZE & (BLOCK_SIZE - 1)), "Traits::BLOCK_SIZE must be a power of 2 (and at least 2)");
static_assert((EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD > 1) && !(EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD & (EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD - 1)), "Traits::EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD must be a power of 2 (and greater than 1)");
static_assert((EXPLICIT_INITIAL_INDEX_SIZE > 1) && !(EXPLICIT_INITIAL_INDEX_SIZE & (EXPLICIT_INITIAL_INDEX_SIZE - 1)), "Traits::EXPLICIT_INITIAL_INDEX_SIZE must be a power of 2 (and greater than 1)");
public:
// Creates a queue with at least `capacity` element slots; note that the
// actual number of elements that can be inserted without additional memory
// allocation depends on the number of producers and the block size (e.g. if
// the block size is equal to `capacity`, only a single block will be allocated
// up-front, which means only a single producer will be able to enqueue elements
// without an extra allocation -- blocks aren't shared between producers).
// This method is not thread safe -- it is up to the user to ensure that the
// queue is fully constructed before it starts being used by other threads (this
// includes making the memory effects of construction visible, possibly with a
// memory barrier).
explicit ConcurrentQueue(size_t capacity = 6 * BLOCK_SIZE)
: producerListTail(nullptr),
producerCount(0),
initialBlockPoolIndex(0),
nextExplicitConsumerId(0),
globalExplicitConsumerOffset(0)
{
populate_initial_block_list(capacity / BLOCK_SIZE + ((capacity & (BLOCK_SIZE - 1)) == 0 ? 0 : 1));
}
// Computes the correct amount of pre-allocated blocks for you based
// on the minimum number of elements you want available at any given
// time, and the maximum concurrent number of each type of producer.
ConcurrentQueue(size_t minCapacity, size_t maxExplicitProducers)
: producerListTail(nullptr),
producerCount(0),
initialBlockPoolIndex(0),
nextExplicitConsumerId(0),
globalExplicitConsumerOffset(0)
{
size_t blocks = (((minCapacity + BLOCK_SIZE - 1) / BLOCK_SIZE) - 1) * (maxExplicitProducers + 1) + 2 * (maxExplicitProducers);
populate_initial_block_list(blocks);
}
// Note: The queue should not be accessed concurrently while it's
// being deleted. It's up to the user to synchronize this.
// This method is not thread safe.
~ConcurrentQueue()
{
// Destroy producers
auto ptr = producerListTail.load(std::memory_order_relaxed);
while (ptr != nullptr) {
auto next = ptr->next_prod();
if (ptr->token != nullptr) {
ptr->token->producer = nullptr;
}
destroy(ptr);
ptr = next;
}
// Destroy global free list
auto block = freeList.head_unsafe();
while (block != nullptr) {
auto next = block->freeListNext.load(std::memory_order_relaxed);
if (block->dynamicallyAllocated) {
destroy(block);
}
block = next;
}
// Destroy initial free list
destroy_array(initialBlockPool, initialBlockPoolSize);
}
// Disable copying and copy assignment
ConcurrentQueue(ConcurrentQueue const&) = delete;
ConcurrentQueue(ConcurrentQueue&& other) = delete;
ConcurrentQueue& operator=(ConcurrentQueue const&) = delete;
ConcurrentQueue& operator=(ConcurrentQueue&& other) = delete;
public:
tracy_force_inline T* enqueue_begin(producer_token_t const& token, index_t& currentTailIndex)
{
return static_cast<ExplicitProducer*>(token.producer)->ConcurrentQueue::ExplicitProducer::enqueue_begin(currentTailIndex);
}
template<class NotifyThread, class ProcessData>
size_t try_dequeue_bulk_single(consumer_token_t& token, NotifyThread notifyThread, ProcessData processData )
{
if (token.desiredProducer == nullptr || token.lastKnownGlobalOffset != globalExplicitConsumerOffset.load(std::memory_order_relaxed)) {
if (!update_current_producer_after_rotation(token)) {
return 0;
}
}
size_t count = static_cast<ProducerBase*>(token.currentProducer)->dequeue_bulk(notifyThread, processData);
token.itemsConsumedFromCurrent += static_cast<std::uint32_t>(count);
auto tail = producerListTail.load(std::memory_order_acquire);
auto ptr = static_cast<ProducerBase*>(token.currentProducer)->next_prod();
if (ptr == nullptr) {
ptr = tail;
}
if( count == 0 )
{
while (ptr != static_cast<ProducerBase*>(token.currentProducer)) {
auto dequeued = ptr->dequeue_bulk(notifyThread, processData);
if (dequeued != 0) {
token.currentProducer = ptr;
token.itemsConsumedFromCurrent = static_cast<std::uint32_t>(dequeued);
return dequeued;
}
ptr = ptr->next_prod();
if (ptr == nullptr) {
ptr = tail;
}
}
return 0;
}
else
{
token.currentProducer = ptr;
token.itemsConsumedFromCurrent = 0;
return count;
}
}
// Returns an estimate of the total number of elements currently in the queue. This
// estimate is only accurate if the queue has completely stabilized before it is called
// (i.e. all enqueue and dequeue operations have completed and their memory effects are
// visible on the calling thread, and no further operations start while this method is
// being called).
// Thread-safe.
size_t size_approx() const
{
size_t size = 0;
for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) {
size += ptr->size_approx();
}
return size;
}
// Returns true if the underlying atomic variables used by
// the queue are lock-free (they should be on most platforms).
// Thread-safe.
static bool is_lock_free()
{
return
details::static_is_lock_free<bool>::value == 2 &&
details::static_is_lock_free<size_t>::value == 2 &&
details::static_is_lock_free<std::uint32_t>::value == 2 &&
details::static_is_lock_free<index_t>::value == 2 &&
details::static_is_lock_free<void*>::value == 2;
}
private:
friend struct ProducerToken;
friend struct ConsumerToken;
friend struct ExplicitProducer;
///////////////////////////////
// Queue methods
///////////////////////////////
inline bool update_current_producer_after_rotation(consumer_token_t& token)
{
// Ah, there's been a rotation, figure out where we should be!
auto tail = producerListTail.load(std::memory_order_acquire);
if (token.desiredProducer == nullptr && tail == nullptr) {
return false;
}
auto prodCount = producerCount.load(std::memory_order_relaxed);
auto globalOffset = globalExplicitConsumerOffset.load(std::memory_order_relaxed);
if (details::cqUnlikely(token.desiredProducer == nullptr)) {
// Aha, first time we're dequeueing anything.
// Figure out our local position
// Note: offset is from start, not end, but we're traversing from end -- subtract from count first
std::uint32_t offset = prodCount - 1 - (token.initialOffset % prodCount);
token.desiredProducer = tail;
for (std::uint32_t i = 0; i != offset; ++i) {
token.desiredProducer = static_cast<ProducerBase*>(token.desiredProducer)->next_prod();
if (token.desiredProducer == nullptr) {
token.desiredProducer = tail;
}
}
}
std::uint32_t delta = globalOffset - token.lastKnownGlobalOffset;
if (delta >= prodCount) {
delta = delta % prodCount;
}
for (std::uint32_t i = 0; i != delta; ++i) {
token.desiredProducer = static_cast<ProducerBase*>(token.desiredProducer)->next_prod();
if (token.desiredProducer == nullptr) {
token.desiredProducer = tail;
}
}
token.lastKnownGlobalOffset = globalOffset;
token.currentProducer = token.desiredProducer;
token.itemsConsumedFromCurrent = 0;
return true;
}
///////////////////////////
// Free list
///////////////////////////
template <typename N>
struct FreeListNode
{
FreeListNode() : freeListRefs(0), freeListNext(nullptr) { }
std::atomic<std::uint32_t> freeListRefs;
std::atomic<N*> freeListNext;
};
// A simple CAS-based lock-free free list. Not the fastest thing in the world under heavy contention, but
// simple and correct (assuming nodes are never freed until after the free list is destroyed), and fairly
// speedy under low contention.
template<typename N> // N must inherit FreeListNode or have the same fields (and initialization of them)
struct FreeList
{
FreeList() : freeListHead(nullptr) { }
FreeList(FreeList&& other) : freeListHead(other.freeListHead.load(std::memory_order_relaxed)) { other.freeListHead.store(nullptr, std::memory_order_relaxed); }
void swap(FreeList& other) { details::swap_relaxed(freeListHead, other.freeListHead); }
FreeList(FreeList const&) = delete;
FreeList& operator=(FreeList const&) = delete;
inline void add(N* node)
{
// We know that the should-be-on-freelist bit is 0 at this point, so it's safe to
// set it using a fetch_add
if (node->freeListRefs.fetch_add(SHOULD_BE_ON_FREELIST, std::memory_order_acq_rel) == 0) {
// Oh look! We were the last ones referencing this node, and we know
// we want to add it to the free list, so let's do it!
add_knowing_refcount_is_zero(node);
}
}
inline N* try_get()
{
auto head = freeListHead.load(std::memory_order_acquire);
while (head != nullptr) {
auto prevHead = head;
auto refs = head->freeListRefs.load(std::memory_order_relaxed);
if ((refs & REFS_MASK) == 0 || !head->freeListRefs.compare_exchange_strong(refs, refs + 1, std::memory_order_acquire, std::memory_order_relaxed)) {
head = freeListHead.load(std::memory_order_acquire);
continue;
}
// Good, reference count has been incremented (it wasn't at zero), which means we can read the
// next and not worry about it changing between now and the time we do the CAS
auto next = head->freeListNext.load(std::memory_order_relaxed);
if (freeListHead.compare_exchange_strong(head, next, std::memory_order_acquire, std::memory_order_relaxed)) {
// Yay, got the node. This means it was on the list, which means shouldBeOnFreeList must be false no
// matter the refcount (because nobody else knows it's been taken off yet, it can't have been put back on).
assert((head->freeListRefs.load(std::memory_order_relaxed) & SHOULD_BE_ON_FREELIST) == 0);
// Decrease refcount twice, once for our ref, and once for the list's ref
head->freeListRefs.fetch_sub(2, std::memory_order_release);
return head;
}
// OK, the head must have changed on us, but we still need to decrease the refcount we increased.
// Note that we don't need to release any memory effects, but we do need to ensure that the reference
// count decrement happens-after the CAS on the head.
refs = prevHead->freeListRefs.fetch_sub(1, std::memory_order_acq_rel);
if (refs == SHOULD_BE_ON_FREELIST + 1) {
add_knowing_refcount_is_zero(prevHead);
}
}
return nullptr;
}
// Useful for traversing the list when there's no contention (e.g. to destroy remaining nodes)
N* head_unsafe() const { return freeListHead.load(std::memory_order_relaxed); }
private:
inline void add_knowing_refcount_is_zero(N* node)
{
// Since the refcount is zero, and nobody can increase it once it's zero (except us, and we run
// only one copy of this method per node at a time, i.e. the single thread case), then we know
// we can safely change the next pointer of the node; however, once the refcount is back above
// zero, then other threads could increase it (happens under heavy contention, when the refcount
// goes to zero in between a load and a refcount increment of a node in try_get, then back up to
// something non-zero, then the refcount increment is done by the other thread) -- so, if the CAS
// to add the node to the actual list fails, decrease the refcount and leave the add operation to
// the next thread who puts the refcount back at zero (which could be us, hence the loop).
auto head = freeListHead.load(std::memory_order_relaxed);
while (true) {
node->freeListNext.store(head, std::memory_order_relaxed);
node->freeListRefs.store(1, std::memory_order_release);
if (!freeListHead.compare_exchange_strong(head, node, std::memory_order_release, std::memory_order_relaxed)) {
// Hmm, the add failed, but we can only try again when the refcount goes back to zero
if (node->freeListRefs.fetch_add(SHOULD_BE_ON_FREELIST - 1, std::memory_order_release) == 1) {
continue;
}
}
return;
}
}
private:
// Implemented like a stack, but where node order doesn't matter (nodes are inserted out of order under contention)
std::atomic<N*> freeListHead;
static const std::uint32_t REFS_MASK = 0x7FFFFFFF;
static const std::uint32_t SHOULD_BE_ON_FREELIST = 0x80000000;
};
///////////////////////////
// Block
///////////////////////////
struct Block
{
Block()
: next(nullptr), elementsCompletelyDequeued(0), freeListRefs(0), freeListNext(nullptr), shouldBeOnFreeList(false), dynamicallyAllocated(true)
{
}
inline bool is_empty() const
{
if (compile_time_condition<BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD>::value) {
// Check flags
for (size_t i = 0; i < BLOCK_SIZE; ++i) {
if (!emptyFlags[i].load(std::memory_order_relaxed)) {
return false;
}
}
// Aha, empty; make sure we have all other memory effects that happened before the empty flags were set
std::atomic_thread_fence(std::memory_order_acquire);
return true;
}
else {
// Check counter
if (elementsCompletelyDequeued.load(std::memory_order_relaxed) == BLOCK_SIZE) {
std::atomic_thread_fence(std::memory_order_acquire);
return true;
}
assert(elementsCompletelyDequeued.load(std::memory_order_relaxed) <= BLOCK_SIZE);
return false;
}
}
// Returns true if the block is now empty (does not apply in explicit context)
inline bool set_empty(index_t i)
{
if (BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) {
// Set flag
assert(!emptyFlags[BLOCK_SIZE - 1 - static_cast<size_t>(i & static_cast<index_t>(BLOCK_SIZE - 1))].load(std::memory_order_relaxed));
emptyFlags[BLOCK_SIZE - 1 - static_cast<size_t>(i & static_cast<index_t>(BLOCK_SIZE - 1))].store(true, std::memory_order_release);
return false;
}
else {
// Increment counter
auto prevVal = elementsCompletelyDequeued.fetch_add(1, std::memory_order_release);
assert(prevVal < BLOCK_SIZE);
return prevVal == BLOCK_SIZE - 1;
}
}
// Sets multiple contiguous item statuses to 'empty' (assumes no wrapping and count > 0).
// Returns true if the block is now empty (does not apply in explicit context).
inline bool set_many_empty(index_t i, size_t count)
{
if (compile_time_condition<BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD>::value) {
// Set flags
std::atomic_thread_fence(std::memory_order_release);
i = BLOCK_SIZE - 1 - static_cast<size_t>(i & static_cast<index_t>(BLOCK_SIZE - 1)) - count + 1;
for (size_t j = 0; j != count; ++j) {
assert(!emptyFlags[i + j].load(std::memory_order_relaxed));
emptyFlags[i + j].store(true, std::memory_order_relaxed);
}
return false;
}
else {
// Increment counter
auto prevVal = elementsCompletelyDequeued.fetch_add(count, std::memory_order_release);
assert(prevVal + count <= BLOCK_SIZE);
return prevVal + count == BLOCK_SIZE;
}
}
inline void set_all_empty()
{
if (BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) {
// Set all flags
for (size_t i = 0; i != BLOCK_SIZE; ++i) {
emptyFlags[i].store(true, std::memory_order_relaxed);
}
}
else {
// Reset counter
elementsCompletelyDequeued.store(BLOCK_SIZE, std::memory_order_relaxed);
}
}
inline void reset_empty()
{
if (compile_time_condition<BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD>::value) {
// Reset flags
for (size_t i = 0; i != BLOCK_SIZE; ++i) {
emptyFlags[i].store(false, std::memory_order_relaxed);
}
}
else {
// Reset counter
elementsCompletelyDequeued.store(0, std::memory_order_relaxed);
}
}
inline T* operator[](index_t idx) noexcept { return static_cast<T*>(static_cast<void*>(elements)) + static_cast<size_t>(idx & static_cast<index_t>(BLOCK_SIZE - 1)); }
inline T const* operator[](index_t idx) const noexcept { return static_cast<T const*>(static_cast<void const*>(elements)) + static_cast<size_t>(idx & static_cast<index_t>(BLOCK_SIZE - 1)); }
private:
// IMPORTANT: This must be the first member in Block, so that if T depends on the alignment of
// addresses returned by malloc, that alignment will be preserved. Apparently clang actually
// generates code that uses this assumption for AVX instructions in some cases. Ideally, we
// should also align Block to the alignment of T in case it's higher than malloc's 16-byte
// alignment, but this is hard to do in a cross-platform way. Assert for this case:
static_assert(std::alignment_of<T>::value <= std::alignment_of<details::max_align_t>::value, "The queue does not support super-aligned types at this time");
// Additionally, we need the alignment of Block itself to be a multiple of max_align_t since
// otherwise the appropriate padding will not be added at the end of Block in order to make
// arrays of Blocks all be properly aligned (not just the first one). We use a union to force
// this.
union {
char elements[sizeof(T) * BLOCK_SIZE];
details::max_align_t dummy;
};
public:
Block* next;
std::atomic<size_t> elementsCompletelyDequeued;
std::atomic<bool> emptyFlags[BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD ? BLOCK_SIZE : 1];
public:
std::atomic<std::uint32_t> freeListRefs;
std::atomic<Block*> freeListNext;
std::atomic<bool> shouldBeOnFreeList;
bool dynamicallyAllocated; // Perhaps a better name for this would be 'isNotPartOfInitialBlockPool'
};
static_assert(std::alignment_of<Block>::value >= std::alignment_of<details::max_align_t>::value, "Internal error: Blocks must be at least as aligned as the type they are wrapping");
///////////////////////////
// Producer base
///////////////////////////
struct ProducerBase : public details::ConcurrentQueueProducerTypelessBase
{
ProducerBase(ConcurrentQueue* parent_) :
tailIndex(0),
headIndex(0),
dequeueOptimisticCount(0),
dequeueOvercommit(0),
tailBlock(nullptr),
parent(parent_)
{
}
virtual ~ProducerBase() { };
template<class NotifyThread, class ProcessData>
inline size_t dequeue_bulk(NotifyThread notifyThread, ProcessData processData)
{
return static_cast<ExplicitProducer*>(this)->dequeue_bulk(notifyThread, processData);
}
inline ProducerBase* next_prod() const { return static_cast<ProducerBase*>(next); }
inline size_t size_approx() const
{
auto tail = tailIndex.load(std::memory_order_relaxed);
auto head = headIndex.load(std::memory_order_relaxed);
return details::circular_less_than(head, tail) ? static_cast<size_t>(tail - head) : 0;
}
inline index_t getTail() const { return tailIndex.load(std::memory_order_relaxed); }
protected:
std::atomic<index_t> tailIndex; // Where to enqueue to next
std::atomic<index_t> headIndex; // Where to dequeue from next
std::atomic<index_t> dequeueOptimisticCount;
std::atomic<index_t> dequeueOvercommit;
Block* tailBlock;
public:
ConcurrentQueue* parent;
};
public:
///////////////////////////
// Explicit queue
///////////////////////////
struct ExplicitProducer : public ProducerBase
{
explicit ExplicitProducer(ConcurrentQueue* _parent) :
ProducerBase(_parent),
blockIndex(nullptr),
pr_blockIndexSlotsUsed(0),
pr_blockIndexSize(EXPLICIT_INITIAL_INDEX_SIZE >> 1),
pr_blockIndexFront(0),
pr_blockIndexEntries(nullptr),
pr_blockIndexRaw(nullptr)
{
size_t poolBasedIndexSize = details::ceil_to_pow_2(_parent->initialBlockPoolSize) >> 1;
if (poolBasedIndexSize > pr_blockIndexSize) {
pr_blockIndexSize = poolBasedIndexSize;
}
new_block_index(0); // This creates an index with double the number of current entries, i.e. EXPLICIT_INITIAL_INDEX_SIZE
}
~ExplicitProducer()
{
// Destruct any elements not yet dequeued.
// Since we're in the destructor, we can assume all elements
// are either completely dequeued or completely not (no halfways).
if (this->tailBlock != nullptr) { // Note this means there must be a block index too
// First find the block that's partially dequeued, if any
Block* halfDequeuedBlock = nullptr;
if ((this->headIndex.load(std::memory_order_relaxed) & static_cast<index_t>(BLOCK_SIZE - 1)) != 0) {
// The head's not on a block boundary, meaning a block somewhere is partially dequeued
// (or the head block is the tail block and was fully dequeued, but the head/tail are still not on a boundary)
size_t i = (pr_blockIndexFront - pr_blockIndexSlotsUsed) & (pr_blockIndexSize - 1);
while (details::circular_less_than<index_t>(pr_blockIndexEntries[i].base + BLOCK_SIZE, this->headIndex.load(std::memory_order_relaxed))) {
i = (i + 1) & (pr_blockIndexSize - 1);
}
assert(details::circular_less_than<index_t>(pr_blockIndexEntries[i].base, this->headIndex.load(std::memory_order_relaxed)));
halfDequeuedBlock = pr_blockIndexEntries[i].block;
}
// Start at the head block (note the first line in the loop gives us the head from the tail on the first iteration)
auto block = this->tailBlock;
do {
block = block->next;
if (block->ConcurrentQueue::Block::is_empty()) {
continue;
}
size_t i = 0; // Offset into block
if (block == halfDequeuedBlock) {
i = static_cast<size_t>(this->headIndex.load(std::memory_order_relaxed) & static_cast<index_t>(BLOCK_SIZE - 1));
}
// Walk through all the items in the block; if this is the tail block, we need to stop when we reach the tail index
auto lastValidIndex = (this->tailIndex.load(std::memory_order_relaxed) & static_cast<index_t>(BLOCK_SIZE - 1)) == 0 ? BLOCK_SIZE : static_cast<size_t>(this->tailIndex.load(std::memory_order_relaxed) & static_cast<index_t>(BLOCK_SIZE - 1));
while (i != BLOCK_SIZE && (block != this->tailBlock || i != lastValidIndex)) {
(*block)[i++]->~T();
}
} while (block != this->tailBlock);
}
// Destroy all blocks that we own
if (this->tailBlock != nullptr) {
auto block = this->tailBlock;
do {
auto nextBlock = block->next;
if (block->dynamicallyAllocated) {
destroy(block);
}
else {
this->parent->add_block_to_free_list(block);
}
block = nextBlock;
} while (block != this->tailBlock);
}
// Destroy the block indices
auto header = static_cast<BlockIndexHeader*>(pr_blockIndexRaw);
while (header != nullptr) {
auto prev = static_cast<BlockIndexHeader*>(header->prev);
header->~BlockIndexHeader();
(Traits::free)(header);
header = prev;
}
}
inline void enqueue_begin_alloc(index_t currentTailIndex)
{
// We reached the end of a block, start a new one
if (this->tailBlock != nullptr && this->tailBlock->next->ConcurrentQueue::Block::is_empty()) {
// We can re-use the block ahead of us, it's empty!
this->tailBlock = this->tailBlock->next;
this->tailBlock->ConcurrentQueue::Block::reset_empty();
// We'll put the block on the block index (guaranteed to be room since we're conceptually removing the
// last block from it first -- except instead of removing then adding, we can just overwrite).
// Note that there must be a valid block index here, since even if allocation failed in the ctor,
// it would have been re-attempted when adding the first block to the queue; since there is such
// a block, a block index must have been successfully allocated.
}
else {
// We're going to need a new block; check that the block index has room
if (pr_blockIndexRaw == nullptr || pr_blockIndexSlotsUsed == pr_blockIndexSize) {
// Hmm, the circular block index is already full -- we'll need
// to allocate a new index. Note pr_blockIndexRaw can only be nullptr if
// the initial allocation failed in the constructor.
new_block_index(pr_blockIndexSlotsUsed);
}
// Insert a new block in the circular linked list
auto newBlock = this->parent->ConcurrentQueue::requisition_block();
newBlock->ConcurrentQueue::Block::reset_empty();
if (this->tailBlock == nullptr) {
newBlock->next = newBlock;
}
else {
newBlock->next = this->tailBlock->next;
this->tailBlock->next = newBlock;
}
this->tailBlock = newBlock;
++pr_blockIndexSlotsUsed;
}
// Add block to block index
auto& entry = blockIndex.load(std::memory_order_relaxed)->entries[pr_blockIndexFront];
entry.base = currentTailIndex;
entry.block = this->tailBlock;
blockIndex.load(std::memory_order_relaxed)->front.store(pr_blockIndexFront, std::memory_order_release);
pr_blockIndexFront = (pr_blockIndexFront + 1) & (pr_blockIndexSize - 1);
}
tracy_force_inline T* enqueue_begin(index_t& currentTailIndex)
{
currentTailIndex = this->tailIndex.load(std::memory_order_relaxed);
if (details::cqUnlikely((currentTailIndex & static_cast<index_t>(BLOCK_SIZE - 1)) == 0)) {
this->enqueue_begin_alloc(currentTailIndex);
}
return (*this->tailBlock)[currentTailIndex];
}
tracy_force_inline std::atomic<index_t>& get_tail_index()
{
return this->tailIndex;
}
template<class NotifyThread, class ProcessData>
size_t dequeue_bulk(NotifyThread notifyThread, ProcessData processData)
{
auto tail = this->tailIndex.load(std::memory_order_relaxed);
auto overcommit = this->dequeueOvercommit.load(std::memory_order_relaxed);
auto desiredCount = static_cast<size_t>(tail - (this->dequeueOptimisticCount.load(std::memory_order_relaxed) - overcommit));
if (details::circular_less_than<size_t>(0, desiredCount)) {
desiredCount = desiredCount < 8192 ? desiredCount : 8192;
std::atomic_thread_fence(std::memory_order_acquire);
auto myDequeueCount = this->dequeueOptimisticCount.fetch_add(desiredCount, std::memory_order_relaxed);
assert(overcommit <= myDequeueCount);
tail = this->tailIndex.load(std::memory_order_acquire);
auto actualCount = static_cast<size_t>(tail - (myDequeueCount - overcommit));
if (details::circular_less_than<size_t>(0, actualCount)) {
actualCount = desiredCount < actualCount ? desiredCount : actualCount;
if (actualCount < desiredCount) {
this->dequeueOvercommit.fetch_add(desiredCount - actualCount, std::memory_order_release);
}
// Get the first index. Note that since there's guaranteed to be at least actualCount elements, this
// will never exceed tail.
auto firstIndex = this->headIndex.fetch_add(actualCount, std::memory_order_acq_rel);
// Determine which block the first element is in
auto localBlockIndex = blockIndex.load(std::memory_order_acquire);
auto localBlockIndexHead = localBlockIndex->front.load(std::memory_order_acquire);
auto headBase = localBlockIndex->entries[localBlockIndexHead].base;
auto firstBlockBaseIndex = firstIndex & ~static_cast<index_t>(BLOCK_SIZE - 1);
auto offset = static_cast<size_t>(static_cast<typename std::make_signed<index_t>::type>(firstBlockBaseIndex - headBase) / BLOCK_SIZE);
auto indexIndex = (localBlockIndexHead + offset) & (localBlockIndex->size - 1);
notifyThread( this->threadId );
// Iterate the blocks and dequeue
auto index = firstIndex;
do {
auto firstIndexInBlock = index;
auto endIndex = (index & ~static_cast<index_t>(BLOCK_SIZE - 1)) + static_cast<index_t>(BLOCK_SIZE);
endIndex = details::circular_less_than<index_t>(firstIndex + static_cast<index_t>(actualCount), endIndex) ? firstIndex + static_cast<index_t>(actualCount) : endIndex;
auto block = localBlockIndex->entries[indexIndex].block;
const auto sz = endIndex - index;
processData( (*block)[index], sz );
index += sz;
block->ConcurrentQueue::Block::set_many_empty(firstIndexInBlock, static_cast<size_t>(endIndex - firstIndexInBlock));
indexIndex = (indexIndex + 1) & (localBlockIndex->size - 1);
} while (index != firstIndex + actualCount);
return actualCount;
}
else {
// Wasn't anything to dequeue after all; make the effective dequeue count eventually consistent
this->dequeueOvercommit.fetch_add(desiredCount, std::memory_order_release);
}
}
return 0;
}
private:
struct BlockIndexEntry
{
index_t base;
Block* block;
};
struct BlockIndexHeader
{
size_t size;
std::atomic<size_t> front; // Current slot (not next, like pr_blockIndexFront)
BlockIndexEntry* entries;
void* prev;
};
bool new_block_index(size_t numberOfFilledSlotsToExpose)
{
auto prevBlockSizeMask = pr_blockIndexSize - 1;
// Create the new block
pr_blockIndexSize <<= 1;
auto newRawPtr = static_cast<char*>((Traits::malloc)(sizeof(BlockIndexHeader) + std::alignment_of<BlockIndexEntry>::value - 1 + sizeof(BlockIndexEntry) * pr_blockIndexSize));
if (newRawPtr == nullptr) {
pr_blockIndexSize >>= 1; // Reset to allow graceful retry
return false;
}
auto newBlockIndexEntries = reinterpret_cast<BlockIndexEntry*>(details::align_for<BlockIndexEntry>(newRawPtr + sizeof(BlockIndexHeader)));
// Copy in all the old indices, if any
size_t j = 0;
if (pr_blockIndexSlotsUsed != 0) {
auto i = (pr_blockIndexFront - pr_blockIndexSlotsUsed) & prevBlockSizeMask;
do {
newBlockIndexEntries[j++] = pr_blockIndexEntries[i];
i = (i + 1) & prevBlockSizeMask;
} while (i != pr_blockIndexFront);
}
// Update everything
auto header = new (newRawPtr) BlockIndexHeader;
header->size = pr_blockIndexSize;
header->front.store(numberOfFilledSlotsToExpose - 1, std::memory_order_relaxed);
header->entries = newBlockIndexEntries;
header->prev = pr_blockIndexRaw; // we link the new block to the old one so we can free it later
pr_blockIndexFront = j;
pr_blockIndexEntries = newBlockIndexEntries;
pr_blockIndexRaw = newRawPtr;
blockIndex.store(header, std::memory_order_release);
return true;
}
private:
std::atomic<BlockIndexHeader*> blockIndex;
// To be used by producer only -- consumer must use the ones in referenced by blockIndex
size_t pr_blockIndexSlotsUsed;
size_t pr_blockIndexSize;
size_t pr_blockIndexFront; // Next slot (not current)
BlockIndexEntry* pr_blockIndexEntries;
void* pr_blockIndexRaw;
};
ExplicitProducer* get_explicit_producer(producer_token_t const& token)
{
return static_cast<ExplicitProducer*>(token.producer);
}
private:
//////////////////////////////////
// Block pool manipulation
//////////////////////////////////
void populate_initial_block_list(size_t blockCount)
{
initialBlockPoolSize = blockCount;
if (initialBlockPoolSize == 0) {
initialBlockPool = nullptr;
return;
}
initialBlockPool = create_array<Block>(blockCount);
if (initialBlockPool == nullptr) {
initialBlockPoolSize = 0;
}
for (size_t i = 0; i < initialBlockPoolSize; ++i) {
initialBlockPool[i].dynamicallyAllocated = false;
}
}
inline Block* try_get_block_from_initial_pool()
{
if (initialBlockPoolIndex.load(std::memory_order_relaxed) >= initialBlockPoolSize) {
return nullptr;
}
auto index = initialBlockPoolIndex.fetch_add(1, std::memory_order_relaxed);
return index < initialBlockPoolSize ? (initialBlockPool + index) : nullptr;
}
inline void add_block_to_free_list(Block* block)
{
freeList.add(block);
}
inline void add_blocks_to_free_list(Block* block)
{
while (block != nullptr) {
auto next = block->next;
add_block_to_free_list(block);
block = next;
}
}
inline Block* try_get_block_from_free_list()
{
return freeList.try_get();
}
// Gets a free block from one of the memory pools, or allocates a new one (if applicable)
Block* requisition_block()
{
auto block = try_get_block_from_initial_pool();
if (block != nullptr) {
return block;
}
block = try_get_block_from_free_list();
if (block != nullptr) {
return block;
}
return create<Block>();
}
//////////////////////////////////
// Producer list manipulation
//////////////////////////////////
ProducerBase* recycle_or_create_producer()
{
bool recycled;
return recycle_or_create_producer(recycled);
}
ProducerBase* recycle_or_create_producer(bool& recycled)
{
// Try to re-use one first
for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) {
if (ptr->inactive.load(std::memory_order_relaxed)) {
if( ptr->size_approx() == 0 )
{
bool expected = true;
if (ptr->inactive.compare_exchange_strong(expected, /* desired */ false, std::memory_order_acquire, std::memory_order_relaxed)) {
// We caught one! It's been marked as activated, the caller can have it
recycled = true;
return ptr;
}
}
}
}
recycled = false;
return add_producer(static_cast<ProducerBase*>(create<ExplicitProducer>(this)));
}
ProducerBase* add_producer(ProducerBase* producer)
{
// Handle failed memory allocation
if (producer == nullptr) {
return nullptr;
}
producerCount.fetch_add(1, std::memory_order_relaxed);
// Add it to the lock-free list
auto prevTail = producerListTail.load(std::memory_order_relaxed);
do {
producer->next = prevTail;
} while (!producerListTail.compare_exchange_weak(prevTail, producer, std::memory_order_release, std::memory_order_relaxed));
return producer;
}
void reown_producers()
{
// After another instance is moved-into/swapped-with this one, all the
// producers we stole still think their parents are the other queue.
// So fix them up!
for (auto ptr = producerListTail.load(std::memory_order_relaxed); ptr != nullptr; ptr = ptr->next_prod()) {
ptr->parent = this;
}
}
//////////////////////////////////
// Utility functions
//////////////////////////////////
template<typename U>
static inline U* create_array(size_t count)
{
assert(count > 0);
return static_cast<U*>((Traits::malloc)(sizeof(U) * count));
}
template<typename U>
static inline void destroy_array(U* p, size_t count)
{
((void)count);
if (p != nullptr) {
assert(count > 0);
(Traits::free)(p);
}
}
template<typename U>
static inline U* create()
{
auto p = (Traits::malloc)(sizeof(U));
return new (p) U;
}
template<typename U, typename A1>
static inline U* create(A1&& a1)
{
auto p = (Traits::malloc)(sizeof(U));
return new (p) U(std::forward<A1>(a1));
}
template<typename U>
static inline void destroy(U* p)
{
if (p != nullptr) {
p->~U();
}
(Traits::free)(p);
}
private:
std::atomic<ProducerBase*> producerListTail;
std::atomic<std::uint32_t> producerCount;
std::atomic<size_t> initialBlockPoolIndex;
Block* initialBlockPool;
size_t initialBlockPoolSize;
FreeList<Block> freeList;
std::atomic<std::uint32_t> nextExplicitConsumerId;
std::atomic<std::uint32_t> globalExplicitConsumerOffset;
};
template<typename T, typename Traits>
ProducerToken::ProducerToken(ConcurrentQueue<T, Traits>& queue)
: producer(queue.recycle_or_create_producer())
{
if (producer != nullptr) {
producer->token = this;
producer->threadId = detail::GetThreadHandleImpl();
}
}
template<typename T, typename Traits>
ConsumerToken::ConsumerToken(ConcurrentQueue<T, Traits>& queue)
: itemsConsumedFromCurrent(0), currentProducer(nullptr), desiredProducer(nullptr)
{
initialOffset = queue.nextExplicitConsumerId.fetch_add(1, std::memory_order_release);
lastKnownGlobalOffset = static_cast<std::uint32_t>(-1);
}
template<typename T, typename Traits>
inline void swap(ConcurrentQueue<T, Traits>& a, ConcurrentQueue<T, Traits>& b) noexcept
{
a.swap(b);
}
inline void swap(ProducerToken& a, ProducerToken& b) noexcept
{
a.swap(b);
}
inline void swap(ConsumerToken& a, ConsumerToken& b) noexcept
{
a.swap(b);
}
}
} /* namespace tracy */
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyCallstack.hpp | #ifndef __TRACYCALLSTACK_HPP__
#define __TRACYCALLSTACK_HPP__
#include "../common/TracyApi.h"
#include "TracyCallstack.h"
#if TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 5
# include <unwind.h>
#elif TRACY_HAS_CALLSTACK >= 3
# include <execinfo.h>
#endif
#ifdef TRACY_HAS_CALLSTACK
#ifdef TRACY_DEBUGINFOD
# include <elfutils/debuginfod.h>
#endif
#include <assert.h>
#include <stdint.h>
#include "../common/TracyAlloc.hpp"
#include "../common/TracyForceInline.hpp"
namespace tracy
{
struct CallstackSymbolData
{
const char* file;
uint32_t line;
bool needFree;
uint64_t symAddr;
};
struct CallstackEntry
{
const char* name;
const char* file;
uint32_t line;
uint32_t symLen;
uint64_t symAddr;
};
struct CallstackEntryData
{
const CallstackEntry* data;
uint8_t size;
const char* imageName;
};
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr );
const char* DecodeCallstackPtrFast( uint64_t ptr );
CallstackEntryData DecodeCallstackPtr( uint64_t ptr );
void InitCallstack();
void InitCallstackCritical();
void EndCallstack();
const char* GetKernelModulePath( uint64_t addr );
#ifdef TRACY_DEBUGINFOD
const uint8_t* GetBuildIdForImage( const char* image, size_t& size );
debuginfod_client* GetDebuginfodClient();
#endif
#if TRACY_HAS_CALLSTACK == 1
extern "C"
{
typedef unsigned long (__stdcall *___tracy_t_RtlWalkFrameChain)( void**, unsigned long, unsigned long );
TRACY_API extern ___tracy_t_RtlWalkFrameChain ___tracy_RtlWalkFrameChain;
}
static tracy_force_inline void* Callstack( int depth )
{
assert( depth >= 1 && depth < 63 );
auto trace = (uintptr_t*)tracy_malloc( ( 1 + depth ) * sizeof( uintptr_t ) );
const auto num = ___tracy_RtlWalkFrameChain( (void**)( trace + 1 ), depth, 0 );
*trace = num;
return trace;
}
#elif TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 5
struct BacktraceState
{
void** current;
void** end;
};
static _Unwind_Reason_Code tracy_unwind_callback( struct _Unwind_Context* ctx, void* arg )
{
auto state = (BacktraceState*)arg;
uintptr_t pc = _Unwind_GetIP( ctx );
if( pc )
{
if( state->current == state->end ) return _URC_END_OF_STACK;
*state->current++ = (void*)pc;
}
return _URC_NO_REASON;
}
static tracy_force_inline void* Callstack( int depth )
{
assert( depth >= 1 && depth < 63 );
auto trace = (uintptr_t*)tracy_malloc( ( 1 + depth ) * sizeof( uintptr_t ) );
BacktraceState state = { (void**)(trace+1), (void**)(trace+1+depth) };
_Unwind_Backtrace( tracy_unwind_callback, &state );
*trace = (uintptr_t*)state.current - trace + 1;
return trace;
}
#elif TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 6
static tracy_force_inline void* Callstack( int depth )
{
assert( depth >= 1 );
auto trace = (uintptr_t*)tracy_malloc( ( 1 + (size_t)depth ) * sizeof( uintptr_t ) );
const auto num = (size_t)backtrace( (void**)(trace+1), depth );
*trace = num;
return trace;
}
#endif
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyStringHelpers.hpp | #ifndef __TRACYSTRINGHELPERS_HPP__
#define __TRACYSTRINGHELPERS_HPP__
#include <assert.h>
#include <string.h>
#include "../common/TracyAlloc.hpp"
#include "../common/TracyForceInline.hpp"
namespace tracy
{
static tracy_force_inline char* CopyString( const char* src, size_t sz )
{
auto dst = (char*)tracy_malloc( sz + 1 );
memcpy( dst, src, sz );
dst[sz] = '\0';
return dst;
}
static tracy_force_inline char* CopyString( const char* src )
{
return CopyString( src, strlen( src ) );
}
static tracy_force_inline char* CopyStringFast( const char* src, size_t sz )
{
auto dst = (char*)tracy_malloc_fast( sz + 1 );
memcpy( dst, src, sz );
dst[sz] = '\0';
return dst;
}
static tracy_force_inline char* CopyStringFast( const char* src )
{
return CopyStringFast( src, strlen( src ) );
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/tracy_rpmalloc.hpp | /* rpmalloc.h - Memory allocator - Public Domain - 2016 Mattias Jansson
*
* This library provides a cross-platform lock free thread caching malloc implementation in C11.
* The latest source code is always available at
*
* https://github.com/mjansson/rpmalloc
*
* This library is put in the public domain; you can redistribute it and/or modify it without any restrictions.
*
*/
#pragma once
#include <stddef.h>
#include "../common/TracyApi.h"
namespace tracy
{
#if defined(__clang__) || defined(__GNUC__)
# define RPMALLOC_EXPORT __attribute__((visibility("default")))
# define RPMALLOC_ALLOCATOR
# if (defined(__clang_major__) && (__clang_major__ < 4)) || (defined(__GNUC__) && defined(ENABLE_PRELOAD) && ENABLE_PRELOAD)
# define RPMALLOC_ATTRIB_MALLOC
# define RPMALLOC_ATTRIB_ALLOC_SIZE(size)
# define RPMALLOC_ATTRIB_ALLOC_SIZE2(count, size)
# else
# define RPMALLOC_ATTRIB_MALLOC __attribute__((__malloc__))
# define RPMALLOC_ATTRIB_ALLOC_SIZE(size) __attribute__((alloc_size(size)))
# define RPMALLOC_ATTRIB_ALLOC_SIZE2(count, size) __attribute__((alloc_size(count, size)))
# endif
# define RPMALLOC_CDECL
#elif defined(_MSC_VER)
# define RPMALLOC_EXPORT
# define RPMALLOC_ALLOCATOR __declspec(allocator) __declspec(restrict)
# define RPMALLOC_ATTRIB_MALLOC
# define RPMALLOC_ATTRIB_ALLOC_SIZE(size)
# define RPMALLOC_ATTRIB_ALLOC_SIZE2(count,size)
# define RPMALLOC_CDECL __cdecl
#else
# define RPMALLOC_EXPORT
# define RPMALLOC_ALLOCATOR
# define RPMALLOC_ATTRIB_MALLOC
# define RPMALLOC_ATTRIB_ALLOC_SIZE(size)
# define RPMALLOC_ATTRIB_ALLOC_SIZE2(count,size)
# define RPMALLOC_CDECL
#endif
//! Define RPMALLOC_CONFIGURABLE to enable configuring sizes. Will introduce
// a very small overhead due to some size calculations not being compile time constants
#ifndef RPMALLOC_CONFIGURABLE
#define RPMALLOC_CONFIGURABLE 0
#endif
//! Define RPMALLOC_FIRST_CLASS_HEAPS to enable heap based API (rpmalloc_heap_* functions).
// Will introduce a very small overhead to track fully allocated spans in heaps
#ifndef RPMALLOC_FIRST_CLASS_HEAPS
#define RPMALLOC_FIRST_CLASS_HEAPS 0
#endif
//! Flag to rpaligned_realloc to not preserve content in reallocation
#define RPMALLOC_NO_PRESERVE 1
//! Flag to rpaligned_realloc to fail and return null pointer if grow cannot be done in-place,
// in which case the original pointer is still valid (just like a call to realloc which failes to allocate
// a new block).
#define RPMALLOC_GROW_OR_FAIL 2
typedef struct rpmalloc_global_statistics_t {
//! Current amount of virtual memory mapped, all of which might not have been committed (only if ENABLE_STATISTICS=1)
size_t mapped;
//! Peak amount of virtual memory mapped, all of which might not have been committed (only if ENABLE_STATISTICS=1)
size_t mapped_peak;
//! Current amount of memory in global caches for small and medium sizes (<32KiB)
size_t cached;
//! Current amount of memory allocated in huge allocations, i.e larger than LARGE_SIZE_LIMIT which is 2MiB by default (only if ENABLE_STATISTICS=1)
size_t huge_alloc;
//! Peak amount of memory allocated in huge allocations, i.e larger than LARGE_SIZE_LIMIT which is 2MiB by default (only if ENABLE_STATISTICS=1)
size_t huge_alloc_peak;
//! Total amount of memory mapped since initialization (only if ENABLE_STATISTICS=1)
size_t mapped_total;
//! Total amount of memory unmapped since initialization (only if ENABLE_STATISTICS=1)
size_t unmapped_total;
} rpmalloc_global_statistics_t;
typedef struct rpmalloc_thread_statistics_t {
//! Current number of bytes available in thread size class caches for small and medium sizes (<32KiB)
size_t sizecache;
//! Current number of bytes available in thread span caches for small and medium sizes (<32KiB)
size_t spancache;
//! Total number of bytes transitioned from thread cache to global cache (only if ENABLE_STATISTICS=1)
size_t thread_to_global;
//! Total number of bytes transitioned from global cache to thread cache (only if ENABLE_STATISTICS=1)
size_t global_to_thread;
//! Per span count statistics (only if ENABLE_STATISTICS=1)
struct {
//! Currently used number of spans
size_t current;
//! High water mark of spans used
size_t peak;
//! Number of spans transitioned to global cache
size_t to_global;
//! Number of spans transitioned from global cache
size_t from_global;
//! Number of spans transitioned to thread cache
size_t to_cache;
//! Number of spans transitioned from thread cache
size_t from_cache;
//! Number of spans transitioned to reserved state
size_t to_reserved;
//! Number of spans transitioned from reserved state
size_t from_reserved;
//! Number of raw memory map calls (not hitting the reserve spans but resulting in actual OS mmap calls)
size_t map_calls;
} span_use[64];
//! Per size class statistics (only if ENABLE_STATISTICS=1)
struct {
//! Current number of allocations
size_t alloc_current;
//! Peak number of allocations
size_t alloc_peak;
//! Total number of allocations
size_t alloc_total;
//! Total number of frees
size_t free_total;
//! Number of spans transitioned to cache
size_t spans_to_cache;
//! Number of spans transitioned from cache
size_t spans_from_cache;
//! Number of spans transitioned from reserved state
size_t spans_from_reserved;
//! Number of raw memory map calls (not hitting the reserve spans but resulting in actual OS mmap calls)
size_t map_calls;
} size_use[128];
} rpmalloc_thread_statistics_t;
typedef struct rpmalloc_config_t {
//! Map memory pages for the given number of bytes. The returned address MUST be
// aligned to the rpmalloc span size, which will always be a power of two.
// Optionally the function can store an alignment offset in the offset variable
// in case it performs alignment and the returned pointer is offset from the
// actual start of the memory region due to this alignment. The alignment offset
// will be passed to the memory unmap function. The alignment offset MUST NOT be
// larger than 65535 (storable in an uint16_t), if it is you must use natural
// alignment to shift it into 16 bits. If you set a memory_map function, you
// must also set a memory_unmap function or else the default implementation will
// be used for both. This function must be thread safe, it can be called by
// multiple threads simultaneously.
void* (*memory_map)(size_t size, size_t* offset);
//! Unmap the memory pages starting at address and spanning the given number of bytes.
// If release is set to non-zero, the unmap is for an entire span range as returned by
// a previous call to memory_map and that the entire range should be released. The
// release argument holds the size of the entire span range. If release is set to 0,
// the unmap is a partial decommit of a subset of the mapped memory range.
// If you set a memory_unmap function, you must also set a memory_map function or
// else the default implementation will be used for both. This function must be thread
// safe, it can be called by multiple threads simultaneously.
void (*memory_unmap)(void* address, size_t size, size_t offset, size_t release);
//! Called when an assert fails, if asserts are enabled. Will use the standard assert()
// if this is not set.
void (*error_callback)(const char* message);
//! Called when a call to map memory pages fails (out of memory). If this callback is
// not set or returns zero the library will return a null pointer in the allocation
// call. If this callback returns non-zero the map call will be retried. The argument
// passed is the number of bytes that was requested in the map call. Only used if
// the default system memory map function is used (memory_map callback is not set).
int (*map_fail_callback)(size_t size);
//! Size of memory pages. The page size MUST be a power of two. All memory mapping
// requests to memory_map will be made with size set to a multiple of the page size.
// Used if RPMALLOC_CONFIGURABLE is defined to 1, otherwise system page size is used.
size_t page_size;
//! Size of a span of memory blocks. MUST be a power of two, and in [4096,262144]
// range (unless 0 - set to 0 to use the default span size). Used if RPMALLOC_CONFIGURABLE
// is defined to 1.
size_t span_size;
//! Number of spans to map at each request to map new virtual memory blocks. This can
// be used to minimize the system call overhead at the cost of virtual memory address
// space. The extra mapped pages will not be written until actually used, so physical
// committed memory should not be affected in the default implementation. Will be
// aligned to a multiple of spans that match memory page size in case of huge pages.
size_t span_map_count;
//! Enable use of large/huge pages. If this flag is set to non-zero and page size is
// zero, the allocator will try to enable huge pages and auto detect the configuration.
// If this is set to non-zero and page_size is also non-zero, the allocator will
// assume huge pages have been configured and enabled prior to initializing the
// allocator.
// For Windows, see https://docs.microsoft.com/en-us/windows/desktop/memory/large-page-support
// For Linux, see https://www.kernel.org/doc/Documentation/vm/hugetlbpage.txt
int enable_huge_pages;
//! Respectively allocated pages and huge allocated pages names for systems
// supporting it to be able to distinguish among anonymous regions.
const char *page_name;
const char *huge_page_name;
} rpmalloc_config_t;
//! Initialize allocator with default configuration
TRACY_API int
rpmalloc_initialize(void);
//! Initialize allocator with given configuration
RPMALLOC_EXPORT int
rpmalloc_initialize_config(const rpmalloc_config_t* config);
//! Get allocator configuration
RPMALLOC_EXPORT const rpmalloc_config_t*
rpmalloc_config(void);
//! Finalize allocator
TRACY_API void
rpmalloc_finalize(void);
//! Initialize allocator for calling thread
TRACY_API void
rpmalloc_thread_initialize(void);
//! Finalize allocator for calling thread
TRACY_API void
rpmalloc_thread_finalize(int release_caches);
//! Perform deferred deallocations pending for the calling thread heap
RPMALLOC_EXPORT void
rpmalloc_thread_collect(void);
//! Query if allocator is initialized for calling thread
RPMALLOC_EXPORT int
rpmalloc_is_thread_initialized(void);
//! Get per-thread statistics
RPMALLOC_EXPORT void
rpmalloc_thread_statistics(rpmalloc_thread_statistics_t* stats);
//! Get global statistics
RPMALLOC_EXPORT void
rpmalloc_global_statistics(rpmalloc_global_statistics_t* stats);
//! Dump all statistics in human readable format to file (should be a FILE*)
RPMALLOC_EXPORT void
rpmalloc_dump_statistics(void* file);
//! Allocate a memory block of at least the given size
TRACY_API RPMALLOC_ALLOCATOR void*
rpmalloc(size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(1);
//! Free the given memory block
TRACY_API void
rpfree(void* ptr);
//! Allocate a memory block of at least the given size and zero initialize it
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpcalloc(size_t num, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE2(1, 2);
//! Reallocate the given block to at least the given size
TRACY_API RPMALLOC_ALLOCATOR void*
rprealloc(void* ptr, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(2);
//! Reallocate the given block to at least the given size and alignment,
// with optional control flags (see RPMALLOC_NO_PRESERVE).
// Alignment must be a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB)
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpaligned_realloc(void* ptr, size_t alignment, size_t size, size_t oldsize, unsigned int flags) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(3);
//! Allocate a memory block of at least the given size and alignment.
// Alignment must be a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB)
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpaligned_alloc(size_t alignment, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(2);
//! Allocate a memory block of at least the given size and alignment, and zero initialize it.
// Alignment must be a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB)
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpaligned_calloc(size_t alignment, size_t num, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE2(2, 3);
//! Allocate a memory block of at least the given size and alignment.
// Alignment must be a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB)
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmemalign(size_t alignment, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(2);
//! Allocate a memory block of at least the given size and alignment.
// Alignment must be a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB)
RPMALLOC_EXPORT int
rpposix_memalign(void** memptr, size_t alignment, size_t size);
//! Query the usable size of the given memory block (from given pointer to the end of block)
RPMALLOC_EXPORT size_t
rpmalloc_usable_size(void* ptr);
#if RPMALLOC_FIRST_CLASS_HEAPS
//! Heap type
typedef struct heap_t rpmalloc_heap_t;
//! Acquire a new heap. Will reuse existing released heaps or allocate memory for a new heap
// if none available. Heap API is implemented with the strict assumption that only one single
// thread will call heap functions for a given heap at any given time, no functions are thread safe.
RPMALLOC_EXPORT rpmalloc_heap_t*
rpmalloc_heap_acquire(void);
//! Release a heap (does NOT free the memory allocated by the heap, use rpmalloc_heap_free_all before destroying the heap).
// Releasing a heap will enable it to be reused by other threads. Safe to pass a null pointer.
RPMALLOC_EXPORT void
rpmalloc_heap_release(rpmalloc_heap_t* heap);
//! Allocate a memory block of at least the given size using the given heap.
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmalloc_heap_alloc(rpmalloc_heap_t* heap, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(2);
//! Allocate a memory block of at least the given size using the given heap. The returned
// block will have the requested alignment. Alignment must be a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB).
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmalloc_heap_aligned_alloc(rpmalloc_heap_t* heap, size_t alignment, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(3);
//! Allocate a memory block of at least the given size using the given heap and zero initialize it.
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmalloc_heap_calloc(rpmalloc_heap_t* heap, size_t num, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE2(2, 3);
//! Allocate a memory block of at least the given size using the given heap and zero initialize it. The returned
// block will have the requested alignment. Alignment must either be zero, or a power of two and a multiple of sizeof(void*),
// and should ideally be less than memory page size. A caveat of rpmalloc
// internals is that this must also be strictly less than the span size (default 64KiB).
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmalloc_heap_aligned_calloc(rpmalloc_heap_t* heap, size_t alignment, size_t num, size_t size) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE2(2, 3);
//! Reallocate the given block to at least the given size. The memory block MUST be allocated
// by the same heap given to this function.
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmalloc_heap_realloc(rpmalloc_heap_t* heap, void* ptr, size_t size, unsigned int flags) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(3);
//! Reallocate the given block to at least the given size. The memory block MUST be allocated
// by the same heap given to this function. The returned block will have the requested alignment.
// Alignment must be either zero, or a power of two and a multiple of sizeof(void*), and should ideally be
// less than memory page size. A caveat of rpmalloc internals is that this must also be strictly less than
// the span size (default 64KiB).
RPMALLOC_EXPORT RPMALLOC_ALLOCATOR void*
rpmalloc_heap_aligned_realloc(rpmalloc_heap_t* heap, void* ptr, size_t alignment, size_t size, unsigned int flags) RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE(4);
//! Free the given memory block from the given heap. The memory block MUST be allocated
// by the same heap given to this function.
RPMALLOC_EXPORT void
rpmalloc_heap_free(rpmalloc_heap_t* heap, void* ptr);
//! Free all memory allocated by the heap
RPMALLOC_EXPORT void
rpmalloc_heap_free_all(rpmalloc_heap_t* heap);
//! Set the given heap as the current heap for the calling thread. A heap MUST only be current heap
// for a single thread, a heap can never be shared between multiple threads. The previous
// current heap for the calling thread is released to be reused by other threads.
RPMALLOC_EXPORT void
rpmalloc_heap_thread_set_current(rpmalloc_heap_t* heap);
#endif
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyDebug.hpp | #ifndef __TRACYPRINT_HPP__
#define __TRACYPRINT_HPP__
#ifdef TRACY_VERBOSE
# include <stdio.h>
# define TracyDebug(...) fprintf( stderr, __VA_ARGS__ );
#else
# define TracyDebug(...)
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/tracy_rpmalloc.cpp | #ifdef TRACY_ENABLE
/* rpmalloc.c - Memory allocator - Public Domain - 2016-2020 Mattias Jansson
*
* This library provides a cross-platform lock free thread caching malloc implementation in C11.
* The latest source code is always available at
*
* https://github.com/mjansson/rpmalloc
*
* This library is put in the public domain; you can redistribute it and/or modify it without any restrictions.
*
*/
#include "tracy_rpmalloc.hpp"
#define BUILD_DYNAMIC_LINK 1
////////////
///
/// Build time configurable limits
///
//////
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wunused-macros"
#pragma clang diagnostic ignored "-Wunused-function"
#if __has_warning("-Wreserved-identifier")
#pragma clang diagnostic ignored "-Wreserved-identifier"
#endif
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wunused-macros"
#pragma GCC diagnostic ignored "-Wunused-function"
#pragma GCC diagnostic ignored "-Warray-bounds"
#endif
#ifndef HEAP_ARRAY_SIZE
//! Size of heap hashmap
#define HEAP_ARRAY_SIZE 47
#endif
#ifndef ENABLE_THREAD_CACHE
//! Enable per-thread cache
#define ENABLE_THREAD_CACHE 1
#endif
#ifndef ENABLE_GLOBAL_CACHE
//! Enable global cache shared between all threads, requires thread cache
#define ENABLE_GLOBAL_CACHE 1
#endif
#ifndef ENABLE_VALIDATE_ARGS
//! Enable validation of args to public entry points
#define ENABLE_VALIDATE_ARGS 0
#endif
#ifndef ENABLE_STATISTICS
//! Enable statistics collection
#define ENABLE_STATISTICS 0
#endif
#ifndef ENABLE_ASSERTS
//! Enable asserts
#define ENABLE_ASSERTS 0
#endif
#ifndef ENABLE_OVERRIDE
//! Override standard library malloc/free and new/delete entry points
#define ENABLE_OVERRIDE 0
#endif
#ifndef ENABLE_PRELOAD
//! Support preloading
#define ENABLE_PRELOAD 0
#endif
#ifndef DISABLE_UNMAP
//! Disable unmapping memory pages (also enables unlimited cache)
#define DISABLE_UNMAP 0
#endif
#ifndef ENABLE_UNLIMITED_CACHE
//! Enable unlimited global cache (no unmapping until finalization)
#define ENABLE_UNLIMITED_CACHE 0
#endif
#ifndef ENABLE_ADAPTIVE_THREAD_CACHE
//! Enable adaptive thread cache size based on use heuristics
#define ENABLE_ADAPTIVE_THREAD_CACHE 0
#endif
#ifndef DEFAULT_SPAN_MAP_COUNT
//! Default number of spans to map in call to map more virtual memory (default values yield 4MiB here)
#define DEFAULT_SPAN_MAP_COUNT 64
#endif
#ifndef GLOBAL_CACHE_MULTIPLIER
//! Multiplier for global cache
#define GLOBAL_CACHE_MULTIPLIER 8
#endif
#if DISABLE_UNMAP && !ENABLE_GLOBAL_CACHE
#error Must use global cache if unmap is disabled
#endif
#if DISABLE_UNMAP
#undef ENABLE_UNLIMITED_CACHE
#define ENABLE_UNLIMITED_CACHE 1
#endif
#if !ENABLE_GLOBAL_CACHE
#undef ENABLE_UNLIMITED_CACHE
#define ENABLE_UNLIMITED_CACHE 0
#endif
#if !ENABLE_THREAD_CACHE
#undef ENABLE_ADAPTIVE_THREAD_CACHE
#define ENABLE_ADAPTIVE_THREAD_CACHE 0
#endif
#if defined(_WIN32) || defined(__WIN32__) || defined(_WIN64)
# define PLATFORM_WINDOWS 1
# define PLATFORM_POSIX 0
#else
# define PLATFORM_WINDOWS 0
# define PLATFORM_POSIX 1
#endif
/// Platform and arch specifics
#if defined(_MSC_VER) && !defined(__clang__)
# pragma warning (disable: 5105)
# ifndef FORCEINLINE
# define FORCEINLINE inline __forceinline
# endif
#else
# ifndef FORCEINLINE
# define FORCEINLINE inline __attribute__((__always_inline__))
# endif
#endif
#if PLATFORM_WINDOWS
# ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# endif
# include <windows.h>
# if ENABLE_VALIDATE_ARGS
# include <intsafe.h>
# endif
#else
# include <unistd.h>
# include <stdio.h>
# include <stdlib.h>
# include <time.h>
# if defined(__linux__) || defined(__ANDROID__)
# include <sys/prctl.h>
# if !defined(PR_SET_VMA)
# define PR_SET_VMA 0x53564d41
# define PR_SET_VMA_ANON_NAME 0
# endif
# endif
# if defined(__APPLE__)
# include <TargetConditionals.h>
# if !TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR
# include <mach/mach_vm.h>
# include <mach/vm_statistics.h>
# endif
# include <pthread.h>
# endif
# if defined(__HAIKU__) || defined(__TINYC__)
# include <pthread.h>
# endif
#endif
#include <stdint.h>
#include <string.h>
#include <errno.h>
#if defined(_WIN32) && (!defined(BUILD_DYNAMIC_LINK) || !BUILD_DYNAMIC_LINK)
#include <fibersapi.h>
static DWORD fls_key;
#endif
#if PLATFORM_POSIX
# include <sys/mman.h>
# include <sched.h>
# ifdef __FreeBSD__
# include <sys/sysctl.h>
# define MAP_HUGETLB MAP_ALIGNED_SUPER
# ifndef PROT_MAX
# define PROT_MAX(f) 0
# endif
# else
# define PROT_MAX(f) 0
# endif
# ifdef __sun
extern int madvise(caddr_t, size_t, int);
# endif
# ifndef MAP_UNINITIALIZED
# define MAP_UNINITIALIZED 0
# endif
#endif
#include <errno.h>
#if ENABLE_ASSERTS
# undef NDEBUG
# if defined(_MSC_VER) && !defined(_DEBUG)
# define _DEBUG
# endif
# include <assert.h>
#define RPMALLOC_TOSTRING_M(x) #x
#define RPMALLOC_TOSTRING(x) RPMALLOC_TOSTRING_M(x)
#define rpmalloc_assert(truth, message) \
do { \
if (!(truth)) { \
if (_memory_config.error_callback) { \
_memory_config.error_callback( \
message " (" RPMALLOC_TOSTRING(truth) ") at " __FILE__ ":" RPMALLOC_TOSTRING(__LINE__)); \
} else { \
assert((truth) && message); \
} \
} \
} while (0)
#else
# define rpmalloc_assert(truth, message) do {} while(0)
#endif
#if ENABLE_STATISTICS
# include <stdio.h>
#endif
//////
///
/// Atomic access abstraction (since MSVC does not do C11 yet)
///
//////
#include <atomic>
typedef std::atomic<int32_t> atomic32_t;
typedef std::atomic<int64_t> atomic64_t;
typedef std::atomic<void*> atomicptr_t;
static FORCEINLINE int32_t atomic_load32(atomic32_t* src) { return std::atomic_load_explicit(src, std::memory_order_relaxed); }
static FORCEINLINE void atomic_store32(atomic32_t* dst, int32_t val) { std::atomic_store_explicit(dst, val, std::memory_order_relaxed); }
static FORCEINLINE int32_t atomic_incr32(atomic32_t* val) { return std::atomic_fetch_add_explicit(val, 1, std::memory_order_relaxed) + 1; }
static FORCEINLINE int32_t atomic_decr32(atomic32_t* val) { return std::atomic_fetch_add_explicit(val, -1, std::memory_order_relaxed) - 1; }
static FORCEINLINE int32_t atomic_add32(atomic32_t* val, int32_t add) { return std::atomic_fetch_add_explicit(val, add, std::memory_order_relaxed) + add; }
static FORCEINLINE int atomic_cas32_acquire(atomic32_t* dst, int32_t val, int32_t ref) { return std::atomic_compare_exchange_weak_explicit(dst, &ref, val, std::memory_order_acquire, std::memory_order_relaxed); }
static FORCEINLINE void atomic_store32_release(atomic32_t* dst, int32_t val) { std::atomic_store_explicit(dst, val, std::memory_order_release); }
static FORCEINLINE int64_t atomic_load64(atomic64_t* val) { return std::atomic_load_explicit(val, std::memory_order_relaxed); }
static FORCEINLINE int64_t atomic_add64(atomic64_t* val, int64_t add) { return std::atomic_fetch_add_explicit(val, add, std::memory_order_relaxed) + add; }
static FORCEINLINE void* atomic_load_ptr(atomicptr_t* src) { return std::atomic_load_explicit(src, std::memory_order_relaxed); }
static FORCEINLINE void atomic_store_ptr(atomicptr_t* dst, void* val) { std::atomic_store_explicit(dst, val, std::memory_order_relaxed); }
static FORCEINLINE void atomic_store_ptr_release(atomicptr_t* dst, void* val) { std::atomic_store_explicit(dst, val, std::memory_order_release); }
static FORCEINLINE void* atomic_exchange_ptr_acquire(atomicptr_t* dst, void* val) { return std::atomic_exchange_explicit(dst, val, std::memory_order_acquire); }
static FORCEINLINE int atomic_cas_ptr(atomicptr_t* dst, void* val, void* ref) { return std::atomic_compare_exchange_weak_explicit(dst, &ref, val, std::memory_order_relaxed, std::memory_order_relaxed); }
#if defined(_MSC_VER) && !defined(__clang__)
#define EXPECTED(x) (x)
#define UNEXPECTED(x) (x)
#else
#define EXPECTED(x) __builtin_expect((x), 1)
#define UNEXPECTED(x) __builtin_expect((x), 0)
#endif
////////////
///
/// Statistics related functions (evaluate to nothing when statistics not enabled)
///
//////
#if ENABLE_STATISTICS
# define _rpmalloc_stat_inc(counter) atomic_incr32(counter)
# define _rpmalloc_stat_dec(counter) atomic_decr32(counter)
# define _rpmalloc_stat_add(counter, value) atomic_add32(counter, (int32_t)(value))
# define _rpmalloc_stat_add64(counter, value) atomic_add64(counter, (int64_t)(value))
# define _rpmalloc_stat_add_peak(counter, value, peak) do { int32_t _cur_count = atomic_add32(counter, (int32_t)(value)); if (_cur_count > (peak)) peak = _cur_count; } while (0)
# define _rpmalloc_stat_sub(counter, value) atomic_add32(counter, -(int32_t)(value))
# define _rpmalloc_stat_inc_alloc(heap, class_idx) do { \
int32_t alloc_current = atomic_incr32(&heap->size_class_use[class_idx].alloc_current); \
if (alloc_current > heap->size_class_use[class_idx].alloc_peak) \
heap->size_class_use[class_idx].alloc_peak = alloc_current; \
atomic_incr32(&heap->size_class_use[class_idx].alloc_total); \
} while(0)
# define _rpmalloc_stat_inc_free(heap, class_idx) do { \
atomic_decr32(&heap->size_class_use[class_idx].alloc_current); \
atomic_incr32(&heap->size_class_use[class_idx].free_total); \
} while(0)
#else
# define _rpmalloc_stat_inc(counter) do {} while(0)
# define _rpmalloc_stat_dec(counter) do {} while(0)
# define _rpmalloc_stat_add(counter, value) do {} while(0)
# define _rpmalloc_stat_add64(counter, value) do {} while(0)
# define _rpmalloc_stat_add_peak(counter, value, peak) do {} while (0)
# define _rpmalloc_stat_sub(counter, value) do {} while(0)
# define _rpmalloc_stat_inc_alloc(heap, class_idx) do {} while(0)
# define _rpmalloc_stat_inc_free(heap, class_idx) do {} while(0)
#endif
///
/// Preconfigured limits and sizes
///
//! Granularity of a small allocation block (must be power of two)
#define SMALL_GRANULARITY 16
//! Small granularity shift count
#define SMALL_GRANULARITY_SHIFT 4
//! Number of small block size classes
#define SMALL_CLASS_COUNT 65
//! Maximum size of a small block
#define SMALL_SIZE_LIMIT (SMALL_GRANULARITY * (SMALL_CLASS_COUNT - 1))
//! Granularity of a medium allocation block
#define MEDIUM_GRANULARITY 512
//! Medium granularity shift count
#define MEDIUM_GRANULARITY_SHIFT 9
//! Number of medium block size classes
#define MEDIUM_CLASS_COUNT 61
//! Total number of small + medium size classes
#define SIZE_CLASS_COUNT (SMALL_CLASS_COUNT + MEDIUM_CLASS_COUNT)
//! Number of large block size classes
#define LARGE_CLASS_COUNT 63
//! Maximum size of a medium block
#define MEDIUM_SIZE_LIMIT (SMALL_SIZE_LIMIT + (MEDIUM_GRANULARITY * MEDIUM_CLASS_COUNT))
//! Maximum size of a large block
#define LARGE_SIZE_LIMIT ((LARGE_CLASS_COUNT * _memory_span_size) - SPAN_HEADER_SIZE)
//! Size of a span header (must be a multiple of SMALL_GRANULARITY and a power of two)
#define SPAN_HEADER_SIZE 128
//! Number of spans in thread cache
#define MAX_THREAD_SPAN_CACHE 400
//! Number of spans to transfer between thread and global cache
#define THREAD_SPAN_CACHE_TRANSFER 64
//! Number of spans in thread cache for large spans (must be greater than LARGE_CLASS_COUNT / 2)
#define MAX_THREAD_SPAN_LARGE_CACHE 100
//! Number of spans to transfer between thread and global cache for large spans
#define THREAD_SPAN_LARGE_CACHE_TRANSFER 6
static_assert((SMALL_GRANULARITY & (SMALL_GRANULARITY - 1)) == 0, "Small granularity must be power of two");
static_assert((SPAN_HEADER_SIZE & (SPAN_HEADER_SIZE - 1)) == 0, "Span header size must be power of two");
#if ENABLE_VALIDATE_ARGS
//! Maximum allocation size to avoid integer overflow
#undef MAX_ALLOC_SIZE
#define MAX_ALLOC_SIZE (((size_t)-1) - _memory_span_size)
#endif
#define pointer_offset(ptr, ofs) (void*)((char*)(ptr) + (ptrdiff_t)(ofs))
#define pointer_diff(first, second) (ptrdiff_t)((const char*)(first) - (const char*)(second))
#define INVALID_POINTER ((void*)((uintptr_t)-1))
#define SIZE_CLASS_LARGE SIZE_CLASS_COUNT
#define SIZE_CLASS_HUGE ((uint32_t)-1)
////////////
///
/// Data types
///
//////
namespace tracy
{
//! A memory heap, per thread
typedef struct heap_t heap_t;
//! Span of memory pages
typedef struct span_t span_t;
//! Span list
typedef struct span_list_t span_list_t;
//! Span active data
typedef struct span_active_t span_active_t;
//! Size class definition
typedef struct size_class_t size_class_t;
//! Global cache
typedef struct global_cache_t global_cache_t;
//! Flag indicating span is the first (master) span of a split superspan
#define SPAN_FLAG_MASTER 1U
//! Flag indicating span is a secondary (sub) span of a split superspan
#define SPAN_FLAG_SUBSPAN 2U
//! Flag indicating span has blocks with increased alignment
#define SPAN_FLAG_ALIGNED_BLOCKS 4U
//! Flag indicating an unmapped master span
#define SPAN_FLAG_UNMAPPED_MASTER 8U
#if ENABLE_ADAPTIVE_THREAD_CACHE || ENABLE_STATISTICS
struct span_use_t {
//! Current number of spans used (actually used, not in cache)
atomic32_t current;
//! High water mark of spans used
atomic32_t high;
#if ENABLE_STATISTICS
//! Number of spans in deferred list
atomic32_t spans_deferred;
//! Number of spans transitioned to global cache
atomic32_t spans_to_global;
//! Number of spans transitioned from global cache
atomic32_t spans_from_global;
//! Number of spans transitioned to thread cache
atomic32_t spans_to_cache;
//! Number of spans transitioned from thread cache
atomic32_t spans_from_cache;
//! Number of spans transitioned to reserved state
atomic32_t spans_to_reserved;
//! Number of spans transitioned from reserved state
atomic32_t spans_from_reserved;
//! Number of raw memory map calls
atomic32_t spans_map_calls;
#endif
};
typedef struct span_use_t span_use_t;
#endif
#if ENABLE_STATISTICS
struct size_class_use_t {
//! Current number of allocations
atomic32_t alloc_current;
//! Peak number of allocations
int32_t alloc_peak;
//! Total number of allocations
atomic32_t alloc_total;
//! Total number of frees
atomic32_t free_total;
//! Number of spans in use
atomic32_t spans_current;
//! Number of spans transitioned to cache
int32_t spans_peak;
//! Number of spans transitioned to cache
atomic32_t spans_to_cache;
//! Number of spans transitioned from cache
atomic32_t spans_from_cache;
//! Number of spans transitioned from reserved state
atomic32_t spans_from_reserved;
//! Number of spans mapped
atomic32_t spans_map_calls;
int32_t unused;
};
typedef struct size_class_use_t size_class_use_t;
#endif
// A span can either represent a single span of memory pages with size declared by span_map_count configuration variable,
// or a set of spans in a continuous region, a super span. Any reference to the term "span" usually refers to both a single
// span or a super span. A super span can further be divided into multiple spans (or this, super spans), where the first
// (super)span is the master and subsequent (super)spans are subspans. The master span keeps track of how many subspans
// that are still alive and mapped in virtual memory, and once all subspans and master have been unmapped the entire
// superspan region is released and unmapped (on Windows for example, the entire superspan range has to be released
// in the same call to release the virtual memory range, but individual subranges can be decommitted individually
// to reduce physical memory use).
struct span_t {
//! Free list
void* free_list;
//! Total block count of size class
uint32_t block_count;
//! Size class
uint32_t size_class;
//! Index of last block initialized in free list
uint32_t free_list_limit;
//! Number of used blocks remaining when in partial state
uint32_t used_count;
//! Deferred free list
atomicptr_t free_list_deferred;
//! Size of deferred free list, or list of spans when part of a cache list
uint32_t list_size;
//! Size of a block
uint32_t block_size;
//! Flags and counters
uint32_t flags;
//! Number of spans
uint32_t span_count;
//! Total span counter for master spans
uint32_t total_spans;
//! Offset from master span for subspans
uint32_t offset_from_master;
//! Remaining span counter, for master spans
atomic32_t remaining_spans;
//! Alignment offset
uint32_t align_offset;
//! Owning heap
heap_t* heap;
//! Next span
span_t* next;
//! Previous span
span_t* prev;
};
static_assert(sizeof(span_t) <= SPAN_HEADER_SIZE, "span size mismatch");
struct span_cache_t {
size_t count;
span_t* span[MAX_THREAD_SPAN_CACHE];
};
typedef struct span_cache_t span_cache_t;
struct span_large_cache_t {
size_t count;
span_t* span[MAX_THREAD_SPAN_LARGE_CACHE];
};
typedef struct span_large_cache_t span_large_cache_t;
struct heap_size_class_t {
//! Free list of active span
void* free_list;
//! Double linked list of partially used spans with free blocks.
// Previous span pointer in head points to tail span of list.
span_t* partial_span;
//! Early level cache of fully free spans
span_t* cache;
};
typedef struct heap_size_class_t heap_size_class_t;
// Control structure for a heap, either a thread heap or a first class heap if enabled
struct heap_t {
//! Owning thread ID
uintptr_t owner_thread;
//! Free lists for each size class
heap_size_class_t size_class[SIZE_CLASS_COUNT];
#if ENABLE_THREAD_CACHE
//! Arrays of fully freed spans, single span
span_cache_t span_cache;
#endif
//! List of deferred free spans (single linked list)
atomicptr_t span_free_deferred;
//! Number of full spans
size_t full_span_count;
//! Mapped but unused spans
span_t* span_reserve;
//! Master span for mapped but unused spans
span_t* span_reserve_master;
//! Number of mapped but unused spans
uint32_t spans_reserved;
//! Child count
atomic32_t child_count;
//! Next heap in id list
heap_t* next_heap;
//! Next heap in orphan list
heap_t* next_orphan;
//! Heap ID
int32_t id;
//! Finalization state flag
int finalize;
//! Master heap owning the memory pages
heap_t* master_heap;
#if ENABLE_THREAD_CACHE
//! Arrays of fully freed spans, large spans with > 1 span count
span_large_cache_t span_large_cache[LARGE_CLASS_COUNT - 1];
#endif
#if RPMALLOC_FIRST_CLASS_HEAPS
//! Double linked list of fully utilized spans with free blocks for each size class.
// Previous span pointer in head points to tail span of list.
span_t* full_span[SIZE_CLASS_COUNT];
//! Double linked list of large and huge spans allocated by this heap
span_t* large_huge_span;
#endif
#if ENABLE_ADAPTIVE_THREAD_CACHE || ENABLE_STATISTICS
//! Current and high water mark of spans used per span count
span_use_t span_use[LARGE_CLASS_COUNT];
#endif
#if ENABLE_STATISTICS
//! Allocation stats per size class
size_class_use_t size_class_use[SIZE_CLASS_COUNT + 1];
//! Number of bytes transitioned thread -> global
atomic64_t thread_to_global;
//! Number of bytes transitioned global -> thread
atomic64_t global_to_thread;
#endif
};
// Size class for defining a block size bucket
struct size_class_t {
//! Size of blocks in this class
uint32_t block_size;
//! Number of blocks in each chunk
uint16_t block_count;
//! Class index this class is merged with
uint16_t class_idx;
};
static_assert(sizeof(size_class_t) == 8, "Size class size mismatch");
struct global_cache_t {
//! Cache lock
atomic32_t lock;
//! Cache count
uint32_t count;
#if ENABLE_STATISTICS
//! Insert count
size_t insert_count;
//! Extract count
size_t extract_count;
#endif
//! Cached spans
span_t* span[GLOBAL_CACHE_MULTIPLIER * MAX_THREAD_SPAN_CACHE];
//! Unlimited cache overflow
span_t* overflow;
};
////////////
///
/// Global data
///
//////
//! Default span size (64KiB)
#define _memory_default_span_size (64 * 1024)
#define _memory_default_span_size_shift 16
#define _memory_default_span_mask (~((uintptr_t)(_memory_span_size - 1)))
//! Initialized flag
static int _rpmalloc_initialized;
//! Main thread ID
static uintptr_t _rpmalloc_main_thread_id;
//! Configuration
static rpmalloc_config_t _memory_config;
//! Memory page size
static size_t _memory_page_size;
//! Shift to divide by page size
static size_t _memory_page_size_shift;
//! Granularity at which memory pages are mapped by OS
static size_t _memory_map_granularity;
#if RPMALLOC_CONFIGURABLE
//! Size of a span of memory pages
static size_t _memory_span_size;
//! Shift to divide by span size
static size_t _memory_span_size_shift;
//! Mask to get to start of a memory span
static uintptr_t _memory_span_mask;
#else
//! Hardwired span size
#define _memory_span_size _memory_default_span_size
#define _memory_span_size_shift _memory_default_span_size_shift
#define _memory_span_mask _memory_default_span_mask
#endif
//! Number of spans to map in each map call
static size_t _memory_span_map_count;
//! Number of spans to keep reserved in each heap
static size_t _memory_heap_reserve_count;
//! Global size classes
static size_class_t _memory_size_class[SIZE_CLASS_COUNT];
//! Run-time size limit of medium blocks
static size_t _memory_medium_size_limit;
//! Heap ID counter
static atomic32_t _memory_heap_id;
//! Huge page support
static int _memory_huge_pages;
#if ENABLE_GLOBAL_CACHE
//! Global span cache
static global_cache_t _memory_span_cache[LARGE_CLASS_COUNT];
#endif
//! Global reserved spans
static span_t* _memory_global_reserve;
//! Global reserved count
static size_t _memory_global_reserve_count;
//! Global reserved master
static span_t* _memory_global_reserve_master;
//! All heaps
static heap_t* _memory_heaps[HEAP_ARRAY_SIZE];
//! Used to restrict access to mapping memory for huge pages
static atomic32_t _memory_global_lock;
//! Orphaned heaps
static heap_t* _memory_orphan_heaps;
#if RPMALLOC_FIRST_CLASS_HEAPS
//! Orphaned heaps (first class heaps)
static heap_t* _memory_first_class_orphan_heaps;
#endif
#if ENABLE_STATISTICS
//! Allocations counter
static atomic64_t _allocation_counter;
//! Deallocations counter
static atomic64_t _deallocation_counter;
//! Active heap count
static atomic32_t _memory_active_heaps;
//! Number of currently mapped memory pages
static atomic32_t _mapped_pages;
//! Peak number of concurrently mapped memory pages
static int32_t _mapped_pages_peak;
//! Number of mapped master spans
static atomic32_t _master_spans;
//! Number of unmapped dangling master spans
static atomic32_t _unmapped_master_spans;
//! Running counter of total number of mapped memory pages since start
static atomic32_t _mapped_total;
//! Running counter of total number of unmapped memory pages since start
static atomic32_t _unmapped_total;
//! Number of currently mapped memory pages in OS calls
static atomic32_t _mapped_pages_os;
//! Number of currently allocated pages in huge allocations
static atomic32_t _huge_pages_current;
//! Peak number of currently allocated pages in huge allocations
static int32_t _huge_pages_peak;
#endif
////////////
///
/// Thread local heap and ID
///
//////
//! Current thread heap
#if ((defined(__APPLE__) || defined(__HAIKU__)) && ENABLE_PRELOAD) || defined(__TINYC__)
static pthread_key_t _memory_thread_heap;
#else
# ifdef _MSC_VER
# define _Thread_local __declspec(thread)
# define TLS_MODEL
# else
# ifndef __HAIKU__
# define TLS_MODEL __attribute__((tls_model("initial-exec")))
# else
# define TLS_MODEL
# endif
# if !defined(__clang__) && defined(__GNUC__)
# define _Thread_local __thread
# endif
# endif
static _Thread_local heap_t* _memory_thread_heap TLS_MODEL;
#endif
static inline heap_t*
get_thread_heap_raw(void) {
#if (defined(__APPLE__) || defined(__HAIKU__)) && ENABLE_PRELOAD
return pthread_getspecific(_memory_thread_heap);
#else
return _memory_thread_heap;
#endif
}
//! Get the current thread heap
static inline heap_t*
get_thread_heap(void) {
heap_t* heap = get_thread_heap_raw();
#if ENABLE_PRELOAD
if (EXPECTED(heap != 0))
return heap;
rpmalloc_initialize();
return get_thread_heap_raw();
#else
return heap;
#endif
}
//! Fast thread ID
static inline uintptr_t
get_thread_id(void) {
#if defined(_WIN32)
return (uintptr_t)((void*)NtCurrentTeb());
#elif (defined(__GNUC__) || defined(__clang__)) && !defined(__CYGWIN__)
uintptr_t tid;
# if defined(__i386__)
__asm__("movl %%gs:0, %0" : "=r" (tid) : : );
# elif defined(__x86_64__)
# if defined(__MACH__)
__asm__("movq %%gs:0, %0" : "=r" (tid) : : );
# else
__asm__("movq %%fs:0, %0" : "=r" (tid) : : );
# endif
# elif defined(__arm__)
__asm__ volatile ("mrc p15, 0, %0, c13, c0, 3" : "=r" (tid));
# elif defined(__aarch64__)
# if defined(__MACH__)
// tpidr_el0 likely unused, always return 0 on iOS
__asm__ volatile ("mrs %0, tpidrro_el0" : "=r" (tid));
# else
__asm__ volatile ("mrs %0, tpidr_el0" : "=r" (tid));
# endif
# else
tid = (uintptr_t)((void*)get_thread_heap_raw());
# endif
return tid;
#else
return (uintptr_t)((void*)get_thread_heap_raw());
#endif
}
//! Set the current thread heap
static void
set_thread_heap(heap_t* heap) {
#if ((defined(__APPLE__) || defined(__HAIKU__)) && ENABLE_PRELOAD) || defined(__TINYC__)
pthread_setspecific(_memory_thread_heap, heap);
#else
_memory_thread_heap = heap;
#endif
if (heap)
heap->owner_thread = get_thread_id();
}
//! Set main thread ID
extern void
rpmalloc_set_main_thread(void);
void
rpmalloc_set_main_thread(void) {
_rpmalloc_main_thread_id = get_thread_id();
}
static void
_rpmalloc_spin(void) {
#if defined(_MSC_VER)
_mm_pause();
#elif defined(__x86_64__) || defined(__i386__)
__asm__ volatile("pause" ::: "memory");
#elif defined(__aarch64__) || (defined(__arm__) && __ARM_ARCH >= 7)
__asm__ volatile("yield" ::: "memory");
#elif defined(__powerpc__) || defined(__powerpc64__)
// No idea if ever been compiled in such archs but ... as precaution
__asm__ volatile("or 27,27,27");
#elif defined(__sparc__)
__asm__ volatile("rd %ccr, %g0 \n\trd %ccr, %g0 \n\trd %ccr, %g0");
#else
struct timespec ts = {0};
nanosleep(&ts, 0);
#endif
}
#if defined(_WIN32) && (!defined(BUILD_DYNAMIC_LINK) || !BUILD_DYNAMIC_LINK)
static void NTAPI
_rpmalloc_thread_destructor(void* value) {
#if ENABLE_OVERRIDE
// If this is called on main thread it means rpmalloc_finalize
// has not been called and shutdown is forced (through _exit) or unclean
if (get_thread_id() == _rpmalloc_main_thread_id)
return;
#endif
if (value)
rpmalloc_thread_finalize(1);
}
#endif
////////////
///
/// Low level memory map/unmap
///
//////
static void
_rpmalloc_set_name(void* address, size_t size) {
#if defined(__linux__) || defined(__ANDROID__)
const char *name = _memory_huge_pages ? _memory_config.huge_page_name : _memory_config.page_name;
if (address == MAP_FAILED || !name)
return;
// If the kernel does not support CONFIG_ANON_VMA_NAME or if the call fails
// (e.g. invalid name) it is a no-op basically.
(void)prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (uintptr_t)address, size, (uintptr_t)name);
#else
(void)sizeof(size);
(void)sizeof(address);
#endif
}
//! Map more virtual memory
// size is number of bytes to map
// offset receives the offset in bytes from start of mapped region
// returns address to start of mapped region to use
static void*
_rpmalloc_mmap(size_t size, size_t* offset) {
rpmalloc_assert(!(size % _memory_page_size), "Invalid mmap size");
rpmalloc_assert(size >= _memory_page_size, "Invalid mmap size");
void* address = _memory_config.memory_map(size, offset);
if (EXPECTED(address != 0)) {
_rpmalloc_stat_add_peak(&_mapped_pages, (size >> _memory_page_size_shift), _mapped_pages_peak);
_rpmalloc_stat_add(&_mapped_total, (size >> _memory_page_size_shift));
}
return address;
}
//! Unmap virtual memory
// address is the memory address to unmap, as returned from _memory_map
// size is the number of bytes to unmap, which might be less than full region for a partial unmap
// offset is the offset in bytes to the actual mapped region, as set by _memory_map
// release is set to 0 for partial unmap, or size of entire range for a full unmap
static void
_rpmalloc_unmap(void* address, size_t size, size_t offset, size_t release) {
rpmalloc_assert(!release || (release >= size), "Invalid unmap size");
rpmalloc_assert(!release || (release >= _memory_page_size), "Invalid unmap size");
if (release) {
rpmalloc_assert(!(release % _memory_page_size), "Invalid unmap size");
_rpmalloc_stat_sub(&_mapped_pages, (release >> _memory_page_size_shift));
_rpmalloc_stat_add(&_unmapped_total, (release >> _memory_page_size_shift));
}
_memory_config.memory_unmap(address, size, offset, release);
}
//! Default implementation to map new pages to virtual memory
static void*
_rpmalloc_mmap_os(size_t size, size_t* offset) {
//Either size is a heap (a single page) or a (multiple) span - we only need to align spans, and only if larger than map granularity
size_t padding = ((size >= _memory_span_size) && (_memory_span_size > _memory_map_granularity)) ? _memory_span_size : 0;
rpmalloc_assert(size >= _memory_page_size, "Invalid mmap size");
#if PLATFORM_WINDOWS
//Ok to MEM_COMMIT - according to MSDN, "actual physical pages are not allocated unless/until the virtual addresses are actually accessed"
void* ptr = VirtualAlloc(0, size + padding, (_memory_huge_pages ? MEM_LARGE_PAGES : 0) | MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
if (!ptr) {
if (_memory_config.map_fail_callback) {
if (_memory_config.map_fail_callback(size + padding))
return _rpmalloc_mmap_os(size, offset);
} else {
rpmalloc_assert(ptr, "Failed to map virtual memory block");
}
return 0;
}
#else
int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_UNINITIALIZED;
# if defined(__APPLE__) && !TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR
int fd = (int)VM_MAKE_TAG(240U);
if (_memory_huge_pages)
fd |= VM_FLAGS_SUPERPAGE_SIZE_2MB;
void* ptr = mmap(0, size + padding, PROT_READ | PROT_WRITE, flags, fd, 0);
# elif defined(MAP_HUGETLB)
void* ptr = mmap(0, size + padding, PROT_READ | PROT_WRITE | PROT_MAX(PROT_READ | PROT_WRITE), (_memory_huge_pages ? MAP_HUGETLB : 0) | flags, -1, 0);
# if defined(MADV_HUGEPAGE)
// In some configurations, huge pages allocations might fail thus
// we fallback to normal allocations and promote the region as transparent huge page
if ((ptr == MAP_FAILED || !ptr) && _memory_huge_pages) {
ptr = mmap(0, size + padding, PROT_READ | PROT_WRITE, flags, -1, 0);
if (ptr && ptr != MAP_FAILED) {
int prm = madvise(ptr, size + padding, MADV_HUGEPAGE);
(void)prm;
rpmalloc_assert((prm == 0), "Failed to promote the page to THP");
}
}
# endif
_rpmalloc_set_name(ptr, size + padding);
# elif defined(MAP_ALIGNED)
const size_t align = (sizeof(size_t) * 8) - (size_t)(__builtin_clzl(size - 1));
void* ptr = mmap(0, size + padding, PROT_READ | PROT_WRITE, (_memory_huge_pages ? MAP_ALIGNED(align) : 0) | flags, -1, 0);
# elif defined(MAP_ALIGN)
caddr_t base = (_memory_huge_pages ? (caddr_t)(4 << 20) : 0);
void* ptr = mmap(base, size + padding, PROT_READ | PROT_WRITE, (_memory_huge_pages ? MAP_ALIGN : 0) | flags, -1, 0);
# else
void* ptr = mmap(0, size + padding, PROT_READ | PROT_WRITE, flags, -1, 0);
# endif
if ((ptr == MAP_FAILED) || !ptr) {
if (_memory_config.map_fail_callback) {
if (_memory_config.map_fail_callback(size + padding))
return _rpmalloc_mmap_os(size, offset);
} else if (errno != ENOMEM) {
rpmalloc_assert((ptr != MAP_FAILED) && ptr, "Failed to map virtual memory block");
}
return 0;
}
#endif
_rpmalloc_stat_add(&_mapped_pages_os, (int32_t)((size + padding) >> _memory_page_size_shift));
if (padding) {
size_t final_padding = padding - ((uintptr_t)ptr & ~_memory_span_mask);
rpmalloc_assert(final_padding <= _memory_span_size, "Internal failure in padding");
rpmalloc_assert(final_padding <= padding, "Internal failure in padding");
rpmalloc_assert(!(final_padding % 8), "Internal failure in padding");
ptr = pointer_offset(ptr, final_padding);
*offset = final_padding >> 3;
}
rpmalloc_assert((size < _memory_span_size) || !((uintptr_t)ptr & ~_memory_span_mask), "Internal failure in padding");
return ptr;
}
//! Default implementation to unmap pages from virtual memory
static void
_rpmalloc_unmap_os(void* address, size_t size, size_t offset, size_t release) {
rpmalloc_assert(release || (offset == 0), "Invalid unmap size");
rpmalloc_assert(!release || (release >= _memory_page_size), "Invalid unmap size");
rpmalloc_assert(size >= _memory_page_size, "Invalid unmap size");
if (release && offset) {
offset <<= 3;
address = pointer_offset(address, -(int32_t)offset);
if ((release >= _memory_span_size) && (_memory_span_size > _memory_map_granularity)) {
//Padding is always one span size
release += _memory_span_size;
}
}
#if !DISABLE_UNMAP
#if PLATFORM_WINDOWS
if (!VirtualFree(address, release ? 0 : size, release ? MEM_RELEASE : MEM_DECOMMIT)) {
rpmalloc_assert(0, "Failed to unmap virtual memory block");
}
#else
if (release) {
if (munmap(address, release)) {
rpmalloc_assert(0, "Failed to unmap virtual memory block");
}
} else {
#if defined(MADV_FREE_REUSABLE)
int ret;
while ((ret = madvise(address, size, MADV_FREE_REUSABLE)) == -1 && (errno == EAGAIN))
errno = 0;
if ((ret == -1) && (errno != 0)) {
#elif defined(MADV_DONTNEED)
if (madvise(address, size, MADV_DONTNEED)) {
#elif defined(MADV_PAGEOUT)
if (madvise(address, size, MADV_PAGEOUT)) {
#elif defined(MADV_FREE)
if (madvise(address, size, MADV_FREE)) {
#else
if (posix_madvise(address, size, POSIX_MADV_DONTNEED)) {
#endif
rpmalloc_assert(0, "Failed to madvise virtual memory block as free");
}
}
#endif
#endif
if (release)
_rpmalloc_stat_sub(&_mapped_pages_os, release >> _memory_page_size_shift);
}
static void
_rpmalloc_span_mark_as_subspan_unless_master(span_t* master, span_t* subspan, size_t span_count);
//! Use global reserved spans to fulfill a memory map request (reserve size must be checked by caller)
static span_t*
_rpmalloc_global_get_reserved_spans(size_t span_count) {
span_t* span = _memory_global_reserve;
_rpmalloc_span_mark_as_subspan_unless_master(_memory_global_reserve_master, span, span_count);
_memory_global_reserve_count -= span_count;
if (_memory_global_reserve_count)
_memory_global_reserve = (span_t*)pointer_offset(span, span_count << _memory_span_size_shift);
else
_memory_global_reserve = 0;
return span;
}
//! Store the given spans as global reserve (must only be called from within new heap allocation, not thread safe)
static void
_rpmalloc_global_set_reserved_spans(span_t* master, span_t* reserve, size_t reserve_span_count) {
_memory_global_reserve_master = master;
_memory_global_reserve_count = reserve_span_count;
_memory_global_reserve = reserve;
}
////////////
///
/// Span linked list management
///
//////
//! Add a span to double linked list at the head
static void
_rpmalloc_span_double_link_list_add(span_t** head, span_t* span) {
if (*head)
(*head)->prev = span;
span->next = *head;
*head = span;
}
//! Pop head span from double linked list
static void
_rpmalloc_span_double_link_list_pop_head(span_t** head, span_t* span) {
rpmalloc_assert(*head == span, "Linked list corrupted");
span = *head;
*head = span->next;
}
//! Remove a span from double linked list
static void
_rpmalloc_span_double_link_list_remove(span_t** head, span_t* span) {
rpmalloc_assert(*head, "Linked list corrupted");
if (*head == span) {
*head = span->next;
} else {
span_t* next_span = span->next;
span_t* prev_span = span->prev;
prev_span->next = next_span;
if (EXPECTED(next_span != 0))
next_span->prev = prev_span;
}
}
////////////
///
/// Span control
///
//////
static void
_rpmalloc_heap_cache_insert(heap_t* heap, span_t* span);
static void
_rpmalloc_heap_finalize(heap_t* heap);
static void
_rpmalloc_heap_set_reserved_spans(heap_t* heap, span_t* master, span_t* reserve, size_t reserve_span_count);
//! Declare the span to be a subspan and store distance from master span and span count
static void
_rpmalloc_span_mark_as_subspan_unless_master(span_t* master, span_t* subspan, size_t span_count) {
rpmalloc_assert((subspan != master) || (subspan->flags & SPAN_FLAG_MASTER), "Span master pointer and/or flag mismatch");
if (subspan != master) {
subspan->flags = SPAN_FLAG_SUBSPAN;
subspan->offset_from_master = (uint32_t)((uintptr_t)pointer_diff(subspan, master) >> _memory_span_size_shift);
subspan->align_offset = 0;
}
subspan->span_count = (uint32_t)span_count;
}
//! Use reserved spans to fulfill a memory map request (reserve size must be checked by caller)
static span_t*
_rpmalloc_span_map_from_reserve(heap_t* heap, size_t span_count) {
//Update the heap span reserve
span_t* span = heap->span_reserve;
heap->span_reserve = (span_t*)pointer_offset(span, span_count * _memory_span_size);
heap->spans_reserved -= (uint32_t)span_count;
_rpmalloc_span_mark_as_subspan_unless_master(heap->span_reserve_master, span, span_count);
if (span_count <= LARGE_CLASS_COUNT)
_rpmalloc_stat_inc(&heap->span_use[span_count - 1].spans_from_reserved);
return span;
}
//! Get the aligned number of spans to map in based on wanted count, configured mapping granularity and the page size
static size_t
_rpmalloc_span_align_count(size_t span_count) {
size_t request_count = (span_count > _memory_span_map_count) ? span_count : _memory_span_map_count;
if ((_memory_page_size > _memory_span_size) && ((request_count * _memory_span_size) % _memory_page_size))
request_count += _memory_span_map_count - (request_count % _memory_span_map_count);
return request_count;
}
//! Setup a newly mapped span
static void
_rpmalloc_span_initialize(span_t* span, size_t total_span_count, size_t span_count, size_t align_offset) {
span->total_spans = (uint32_t)total_span_count;
span->span_count = (uint32_t)span_count;
span->align_offset = (uint32_t)align_offset;
span->flags = SPAN_FLAG_MASTER;
atomic_store32(&span->remaining_spans, (int32_t)total_span_count);
}
static void
_rpmalloc_span_unmap(span_t* span);
//! Map an aligned set of spans, taking configured mapping granularity and the page size into account
static span_t*
_rpmalloc_span_map_aligned_count(heap_t* heap, size_t span_count) {
//If we already have some, but not enough, reserved spans, release those to heap cache and map a new
//full set of spans. Otherwise we would waste memory if page size > span size (huge pages)
size_t aligned_span_count = _rpmalloc_span_align_count(span_count);
size_t align_offset = 0;
span_t* span = (span_t*)_rpmalloc_mmap(aligned_span_count * _memory_span_size, &align_offset);
if (!span)
return 0;
_rpmalloc_span_initialize(span, aligned_span_count, span_count, align_offset);
_rpmalloc_stat_inc(&_master_spans);
if (span_count <= LARGE_CLASS_COUNT)
_rpmalloc_stat_inc(&heap->span_use[span_count - 1].spans_map_calls);
if (aligned_span_count > span_count) {
span_t* reserved_spans = (span_t*)pointer_offset(span, span_count * _memory_span_size);
size_t reserved_count = aligned_span_count - span_count;
if (heap->spans_reserved) {
_rpmalloc_span_mark_as_subspan_unless_master(heap->span_reserve_master, heap->span_reserve, heap->spans_reserved);
_rpmalloc_heap_cache_insert(heap, heap->span_reserve);
}
if (reserved_count > _memory_heap_reserve_count) {
// If huge pages or eager spam map count, the global reserve spin lock is held by caller, _rpmalloc_span_map
rpmalloc_assert(atomic_load32(&_memory_global_lock) == 1, "Global spin lock not held as expected");
size_t remain_count = reserved_count - _memory_heap_reserve_count;
reserved_count = _memory_heap_reserve_count;
span_t* remain_span = (span_t*)pointer_offset(reserved_spans, reserved_count * _memory_span_size);
if (_memory_global_reserve) {
_rpmalloc_span_mark_as_subspan_unless_master(_memory_global_reserve_master, _memory_global_reserve, _memory_global_reserve_count);
_rpmalloc_span_unmap(_memory_global_reserve);
}
_rpmalloc_global_set_reserved_spans(span, remain_span, remain_count);
}
_rpmalloc_heap_set_reserved_spans(heap, span, reserved_spans, reserved_count);
}
return span;
}
//! Map in memory pages for the given number of spans (or use previously reserved pages)
static span_t*
_rpmalloc_span_map(heap_t* heap, size_t span_count) {
if (span_count <= heap->spans_reserved)
return _rpmalloc_span_map_from_reserve(heap, span_count);
span_t* span = 0;
int use_global_reserve = (_memory_page_size > _memory_span_size) || (_memory_span_map_count > _memory_heap_reserve_count);
if (use_global_reserve) {
// If huge pages, make sure only one thread maps more memory to avoid bloat
while (!atomic_cas32_acquire(&_memory_global_lock, 1, 0))
_rpmalloc_spin();
if (_memory_global_reserve_count >= span_count) {
size_t reserve_count = (!heap->spans_reserved ? _memory_heap_reserve_count : span_count);
if (_memory_global_reserve_count < reserve_count)
reserve_count = _memory_global_reserve_count;
span = _rpmalloc_global_get_reserved_spans(reserve_count);
if (span) {
if (reserve_count > span_count) {
span_t* reserved_span = (span_t*)pointer_offset(span, span_count << _memory_span_size_shift);
_rpmalloc_heap_set_reserved_spans(heap, _memory_global_reserve_master, reserved_span, reserve_count - span_count);
}
// Already marked as subspan in _rpmalloc_global_get_reserved_spans
span->span_count = (uint32_t)span_count;
}
}
}
if (!span)
span = _rpmalloc_span_map_aligned_count(heap, span_count);
if (use_global_reserve)
atomic_store32_release(&_memory_global_lock, 0);
return span;
}
//! Unmap memory pages for the given number of spans (or mark as unused if no partial unmappings)
static void
_rpmalloc_span_unmap(span_t* span) {
rpmalloc_assert((span->flags & SPAN_FLAG_MASTER) || (span->flags & SPAN_FLAG_SUBSPAN), "Span flag corrupted");
rpmalloc_assert(!(span->flags & SPAN_FLAG_MASTER) || !(span->flags & SPAN_FLAG_SUBSPAN), "Span flag corrupted");
int is_master = !!(span->flags & SPAN_FLAG_MASTER);
span_t* master = is_master ? span : ((span_t*)pointer_offset(span, -(intptr_t)((uintptr_t)span->offset_from_master * _memory_span_size)));
rpmalloc_assert(is_master || (span->flags & SPAN_FLAG_SUBSPAN), "Span flag corrupted");
rpmalloc_assert(master->flags & SPAN_FLAG_MASTER, "Span flag corrupted");
size_t span_count = span->span_count;
if (!is_master) {
//Directly unmap subspans (unless huge pages, in which case we defer and unmap entire page range with master)
rpmalloc_assert(span->align_offset == 0, "Span align offset corrupted");
if (_memory_span_size >= _memory_page_size)
_rpmalloc_unmap(span, span_count * _memory_span_size, 0, 0);
} else {
//Special double flag to denote an unmapped master
//It must be kept in memory since span header must be used
span->flags |= SPAN_FLAG_MASTER | SPAN_FLAG_SUBSPAN | SPAN_FLAG_UNMAPPED_MASTER;
_rpmalloc_stat_add(&_unmapped_master_spans, 1);
}
if (atomic_add32(&master->remaining_spans, -(int32_t)span_count) <= 0) {
//Everything unmapped, unmap the master span with release flag to unmap the entire range of the super span
rpmalloc_assert(!!(master->flags & SPAN_FLAG_MASTER) && !!(master->flags & SPAN_FLAG_SUBSPAN), "Span flag corrupted");
size_t unmap_count = master->span_count;
if (_memory_span_size < _memory_page_size)
unmap_count = master->total_spans;
_rpmalloc_stat_sub(&_master_spans, 1);
_rpmalloc_stat_sub(&_unmapped_master_spans, 1);
_rpmalloc_unmap(master, unmap_count * _memory_span_size, master->align_offset, (size_t)master->total_spans * _memory_span_size);
}
}
//! Move the span (used for small or medium allocations) to the heap thread cache
static void
_rpmalloc_span_release_to_cache(heap_t* heap, span_t* span) {
rpmalloc_assert(heap == span->heap, "Span heap pointer corrupted");
rpmalloc_assert(span->size_class < SIZE_CLASS_COUNT, "Invalid span size class");
rpmalloc_assert(span->span_count == 1, "Invalid span count");
#if ENABLE_ADAPTIVE_THREAD_CACHE || ENABLE_STATISTICS
atomic_decr32(&heap->span_use[0].current);
#endif
_rpmalloc_stat_dec(&heap->size_class_use[span->size_class].spans_current);
if (!heap->finalize) {
_rpmalloc_stat_inc(&heap->span_use[0].spans_to_cache);
_rpmalloc_stat_inc(&heap->size_class_use[span->size_class].spans_to_cache);
if (heap->size_class[span->size_class].cache)
_rpmalloc_heap_cache_insert(heap, heap->size_class[span->size_class].cache);
heap->size_class[span->size_class].cache = span;
} else {
_rpmalloc_span_unmap(span);
}
}
//! Initialize a (partial) free list up to next system memory page, while reserving the first block
//! as allocated, returning number of blocks in list
static uint32_t
free_list_partial_init(void** list, void** first_block, void* page_start, void* block_start, uint32_t block_count, uint32_t block_size) {
rpmalloc_assert(block_count, "Internal failure");
*first_block = block_start;
if (block_count > 1) {
void* free_block = pointer_offset(block_start, block_size);
void* block_end = pointer_offset(block_start, (size_t)block_size * block_count);
//If block size is less than half a memory page, bound init to next memory page boundary
if (block_size < (_memory_page_size >> 1)) {
void* page_end = pointer_offset(page_start, _memory_page_size);
if (page_end < block_end)
block_end = page_end;
}
*list = free_block;
block_count = 2;
void* next_block = pointer_offset(free_block, block_size);
while (next_block < block_end) {
*((void**)free_block) = next_block;
free_block = next_block;
++block_count;
next_block = pointer_offset(next_block, block_size);
}
*((void**)free_block) = 0;
} else {
*list = 0;
}
return block_count;
}
//! Initialize an unused span (from cache or mapped) to be new active span, putting the initial free list in heap class free list
static void*
_rpmalloc_span_initialize_new(heap_t* heap, heap_size_class_t* heap_size_class, span_t* span, uint32_t class_idx) {
rpmalloc_assert(span->span_count == 1, "Internal failure");
size_class_t* size_class = _memory_size_class + class_idx;
span->size_class = class_idx;
span->heap = heap;
span->flags &= ~SPAN_FLAG_ALIGNED_BLOCKS;
span->block_size = size_class->block_size;
span->block_count = size_class->block_count;
span->free_list = 0;
span->list_size = 0;
atomic_store_ptr_release(&span->free_list_deferred, 0);
//Setup free list. Only initialize one system page worth of free blocks in list
void* block;
span->free_list_limit = free_list_partial_init(&heap_size_class->free_list, &block,
span, pointer_offset(span, SPAN_HEADER_SIZE), size_class->block_count, size_class->block_size);
//Link span as partial if there remains blocks to be initialized as free list, or full if fully initialized
if (span->free_list_limit < span->block_count) {
_rpmalloc_span_double_link_list_add(&heap_size_class->partial_span, span);
span->used_count = span->free_list_limit;
} else {
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_add(&heap->full_span[class_idx], span);
#endif
++heap->full_span_count;
span->used_count = span->block_count;
}
return block;
}
static void
_rpmalloc_span_extract_free_list_deferred(span_t* span) {
// We need acquire semantics on the CAS operation since we are interested in the list size
// Refer to _rpmalloc_deallocate_defer_small_or_medium for further comments on this dependency
do {
span->free_list = atomic_exchange_ptr_acquire(&span->free_list_deferred, INVALID_POINTER);
} while (span->free_list == INVALID_POINTER);
span->used_count -= span->list_size;
span->list_size = 0;
atomic_store_ptr_release(&span->free_list_deferred, 0);
}
static int
_rpmalloc_span_is_fully_utilized(span_t* span) {
rpmalloc_assert(span->free_list_limit <= span->block_count, "Span free list corrupted");
return !span->free_list && (span->free_list_limit >= span->block_count);
}
static int
_rpmalloc_span_finalize(heap_t* heap, size_t iclass, span_t* span, span_t** list_head) {
void* free_list = heap->size_class[iclass].free_list;
span_t* class_span = (span_t*)((uintptr_t)free_list & _memory_span_mask);
if (span == class_span) {
// Adopt the heap class free list back into the span free list
void* block = span->free_list;
void* last_block = 0;
while (block) {
last_block = block;
block = *((void**)block);
}
uint32_t free_count = 0;
block = free_list;
while (block) {
++free_count;
block = *((void**)block);
}
if (last_block) {
*((void**)last_block) = free_list;
} else {
span->free_list = free_list;
}
heap->size_class[iclass].free_list = 0;
span->used_count -= free_count;
}
//If this assert triggers you have memory leaks
rpmalloc_assert(span->list_size == span->used_count, "Memory leak detected");
if (span->list_size == span->used_count) {
_rpmalloc_stat_dec(&heap->span_use[0].current);
_rpmalloc_stat_dec(&heap->size_class_use[iclass].spans_current);
// This function only used for spans in double linked lists
if (list_head)
_rpmalloc_span_double_link_list_remove(list_head, span);
_rpmalloc_span_unmap(span);
return 1;
}
return 0;
}
////////////
///
/// Global cache
///
//////
#if ENABLE_GLOBAL_CACHE
//! Finalize a global cache
static void
_rpmalloc_global_cache_finalize(global_cache_t* cache) {
while (!atomic_cas32_acquire(&cache->lock, 1, 0))
_rpmalloc_spin();
for (size_t ispan = 0; ispan < cache->count; ++ispan)
_rpmalloc_span_unmap(cache->span[ispan]);
cache->count = 0;
while (cache->overflow) {
span_t* span = cache->overflow;
cache->overflow = span->next;
_rpmalloc_span_unmap(span);
}
atomic_store32_release(&cache->lock, 0);
}
static void
_rpmalloc_global_cache_insert_spans(span_t** span, size_t span_count, size_t count) {
const size_t cache_limit = (span_count == 1) ?
GLOBAL_CACHE_MULTIPLIER * MAX_THREAD_SPAN_CACHE :
GLOBAL_CACHE_MULTIPLIER * (MAX_THREAD_SPAN_LARGE_CACHE - (span_count >> 1));
global_cache_t* cache = &_memory_span_cache[span_count - 1];
size_t insert_count = count;
while (!atomic_cas32_acquire(&cache->lock, 1, 0))
_rpmalloc_spin();
#if ENABLE_STATISTICS
cache->insert_count += count;
#endif
if ((cache->count + insert_count) > cache_limit)
insert_count = cache_limit - cache->count;
memcpy(cache->span + cache->count, span, sizeof(span_t*) * insert_count);
cache->count += (uint32_t)insert_count;
#if ENABLE_UNLIMITED_CACHE
while (insert_count < count) {
#else
// Enable unlimited cache if huge pages, or we will leak since it is unlikely that an entire huge page
// will be unmapped, and we're unable to partially decommit a huge page
while ((_memory_page_size > _memory_span_size) && (insert_count < count)) {
#endif
span_t* current_span = span[insert_count++];
current_span->next = cache->overflow;
cache->overflow = current_span;
}
atomic_store32_release(&cache->lock, 0);
span_t* keep = 0;
for (size_t ispan = insert_count; ispan < count; ++ispan) {
span_t* current_span = span[ispan];
// Keep master spans that has remaining subspans to avoid dangling them
if ((current_span->flags & SPAN_FLAG_MASTER) &&
(atomic_load32(¤t_span->remaining_spans) > (int32_t)current_span->span_count)) {
current_span->next = keep;
keep = current_span;
} else {
_rpmalloc_span_unmap(current_span);
}
}
if (keep) {
while (!atomic_cas32_acquire(&cache->lock, 1, 0))
_rpmalloc_spin();
size_t islot = 0;
while (keep) {
for (; islot < cache->count; ++islot) {
span_t* current_span = cache->span[islot];
if (!(current_span->flags & SPAN_FLAG_MASTER) || ((current_span->flags & SPAN_FLAG_MASTER) &&
(atomic_load32(¤t_span->remaining_spans) <= (int32_t)current_span->span_count))) {
_rpmalloc_span_unmap(current_span);
cache->span[islot] = keep;
break;
}
}
if (islot == cache->count)
break;
keep = keep->next;
}
if (keep) {
span_t* tail = keep;
while (tail->next)
tail = tail->next;
tail->next = cache->overflow;
cache->overflow = keep;
}
atomic_store32_release(&cache->lock, 0);
}
}
static size_t
_rpmalloc_global_cache_extract_spans(span_t** span, size_t span_count, size_t count) {
global_cache_t* cache = &_memory_span_cache[span_count - 1];
size_t extract_count = 0;
while (!atomic_cas32_acquire(&cache->lock, 1, 0))
_rpmalloc_spin();
#if ENABLE_STATISTICS
cache->extract_count += count;
#endif
size_t want = count - extract_count;
if (want > cache->count)
want = cache->count;
memcpy(span + extract_count, cache->span + (cache->count - want), sizeof(span_t*) * want);
cache->count -= (uint32_t)want;
extract_count += want;
while ((extract_count < count) && cache->overflow) {
span_t* current_span = cache->overflow;
span[extract_count++] = current_span;
cache->overflow = current_span->next;
}
#if ENABLE_ASSERTS
for (size_t ispan = 0; ispan < extract_count; ++ispan) {
assert(span[ispan]->span_count == span_count);
}
#endif
atomic_store32_release(&cache->lock, 0);
return extract_count;
}
#endif
////////////
///
/// Heap control
///
//////
static void _rpmalloc_deallocate_huge(span_t*);
//! Store the given spans as reserve in the given heap
static void
_rpmalloc_heap_set_reserved_spans(heap_t* heap, span_t* master, span_t* reserve, size_t reserve_span_count) {
heap->span_reserve_master = master;
heap->span_reserve = reserve;
heap->spans_reserved = (uint32_t)reserve_span_count;
}
//! Adopt the deferred span cache list, optionally extracting the first single span for immediate re-use
static void
_rpmalloc_heap_cache_adopt_deferred(heap_t* heap, span_t** single_span) {
span_t* span = (span_t*)((void*)atomic_exchange_ptr_acquire(&heap->span_free_deferred, 0));
while (span) {
span_t* next_span = (span_t*)span->free_list;
rpmalloc_assert(span->heap == heap, "Span heap pointer corrupted");
if (EXPECTED(span->size_class < SIZE_CLASS_COUNT)) {
rpmalloc_assert(heap->full_span_count, "Heap span counter corrupted");
--heap->full_span_count;
_rpmalloc_stat_dec(&heap->span_use[0].spans_deferred);
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_remove(&heap->full_span[span->size_class], span);
#endif
_rpmalloc_stat_dec(&heap->span_use[0].current);
_rpmalloc_stat_dec(&heap->size_class_use[span->size_class].spans_current);
if (single_span && !*single_span)
*single_span = span;
else
_rpmalloc_heap_cache_insert(heap, span);
} else {
if (span->size_class == SIZE_CLASS_HUGE) {
_rpmalloc_deallocate_huge(span);
} else {
rpmalloc_assert(span->size_class == SIZE_CLASS_LARGE, "Span size class invalid");
rpmalloc_assert(heap->full_span_count, "Heap span counter corrupted");
--heap->full_span_count;
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_remove(&heap->large_huge_span, span);
#endif
uint32_t idx = span->span_count - 1;
_rpmalloc_stat_dec(&heap->span_use[idx].spans_deferred);
_rpmalloc_stat_dec(&heap->span_use[idx].current);
if (!idx && single_span && !*single_span)
*single_span = span;
else
_rpmalloc_heap_cache_insert(heap, span);
}
}
span = next_span;
}
}
static void
_rpmalloc_heap_unmap(heap_t* heap) {
if (!heap->master_heap) {
if ((heap->finalize > 1) && !atomic_load32(&heap->child_count)) {
span_t* span = (span_t*)((uintptr_t)heap & _memory_span_mask);
_rpmalloc_span_unmap(span);
}
} else {
if (atomic_decr32(&heap->master_heap->child_count) == 0) {
_rpmalloc_heap_unmap(heap->master_heap);
}
}
}
static void
_rpmalloc_heap_global_finalize(heap_t* heap) {
if (heap->finalize++ > 1) {
--heap->finalize;
return;
}
_rpmalloc_heap_finalize(heap);
#if ENABLE_THREAD_CACHE
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
span_cache_t* span_cache;
if (!iclass)
span_cache = &heap->span_cache;
else
span_cache = (span_cache_t*)(heap->span_large_cache + (iclass - 1));
for (size_t ispan = 0; ispan < span_cache->count; ++ispan)
_rpmalloc_span_unmap(span_cache->span[ispan]);
span_cache->count = 0;
}
#endif
if (heap->full_span_count) {
--heap->finalize;
return;
}
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
if (heap->size_class[iclass].free_list || heap->size_class[iclass].partial_span) {
--heap->finalize;
return;
}
}
//Heap is now completely free, unmap and remove from heap list
size_t list_idx = (size_t)heap->id % HEAP_ARRAY_SIZE;
heap_t* list_heap = _memory_heaps[list_idx];
if (list_heap == heap) {
_memory_heaps[list_idx] = heap->next_heap;
} else {
while (list_heap->next_heap != heap)
list_heap = list_heap->next_heap;
list_heap->next_heap = heap->next_heap;
}
_rpmalloc_heap_unmap(heap);
}
//! Insert a single span into thread heap cache, releasing to global cache if overflow
static void
_rpmalloc_heap_cache_insert(heap_t* heap, span_t* span) {
if (UNEXPECTED(heap->finalize != 0)) {
_rpmalloc_span_unmap(span);
_rpmalloc_heap_global_finalize(heap);
return;
}
#if ENABLE_THREAD_CACHE
size_t span_count = span->span_count;
_rpmalloc_stat_inc(&heap->span_use[span_count - 1].spans_to_cache);
if (span_count == 1) {
span_cache_t* span_cache = &heap->span_cache;
span_cache->span[span_cache->count++] = span;
if (span_cache->count == MAX_THREAD_SPAN_CACHE) {
const size_t remain_count = MAX_THREAD_SPAN_CACHE - THREAD_SPAN_CACHE_TRANSFER;
#if ENABLE_GLOBAL_CACHE
_rpmalloc_stat_add64(&heap->thread_to_global, THREAD_SPAN_CACHE_TRANSFER * _memory_span_size);
_rpmalloc_stat_add(&heap->span_use[span_count - 1].spans_to_global, THREAD_SPAN_CACHE_TRANSFER);
_rpmalloc_global_cache_insert_spans(span_cache->span + remain_count, span_count, THREAD_SPAN_CACHE_TRANSFER);
#else
for (size_t ispan = 0; ispan < THREAD_SPAN_CACHE_TRANSFER; ++ispan)
_rpmalloc_span_unmap(span_cache->span[remain_count + ispan]);
#endif
span_cache->count = remain_count;
}
} else {
size_t cache_idx = span_count - 2;
span_large_cache_t* span_cache = heap->span_large_cache + cache_idx;
span_cache->span[span_cache->count++] = span;
const size_t cache_limit = (MAX_THREAD_SPAN_LARGE_CACHE - (span_count >> 1));
if (span_cache->count == cache_limit) {
const size_t transfer_limit = 2 + (cache_limit >> 2);
const size_t transfer_count = (THREAD_SPAN_LARGE_CACHE_TRANSFER <= transfer_limit ? THREAD_SPAN_LARGE_CACHE_TRANSFER : transfer_limit);
const size_t remain_count = cache_limit - transfer_count;
#if ENABLE_GLOBAL_CACHE
_rpmalloc_stat_add64(&heap->thread_to_global, transfer_count * span_count * _memory_span_size);
_rpmalloc_stat_add(&heap->span_use[span_count - 1].spans_to_global, transfer_count);
_rpmalloc_global_cache_insert_spans(span_cache->span + remain_count, span_count, transfer_count);
#else
for (size_t ispan = 0; ispan < transfer_count; ++ispan)
_rpmalloc_span_unmap(span_cache->span[remain_count + ispan]);
#endif
span_cache->count = remain_count;
}
}
#else
(void)sizeof(heap);
_rpmalloc_span_unmap(span);
#endif
}
//! Extract the given number of spans from the different cache levels
static span_t*
_rpmalloc_heap_thread_cache_extract(heap_t* heap, size_t span_count) {
span_t* span = 0;
#if ENABLE_THREAD_CACHE
span_cache_t* span_cache;
if (span_count == 1)
span_cache = &heap->span_cache;
else
span_cache = (span_cache_t*)(heap->span_large_cache + (span_count - 2));
if (span_cache->count) {
_rpmalloc_stat_inc(&heap->span_use[span_count - 1].spans_from_cache);
return span_cache->span[--span_cache->count];
}
#endif
return span;
}
static span_t*
_rpmalloc_heap_thread_cache_deferred_extract(heap_t* heap, size_t span_count) {
span_t* span = 0;
if (span_count == 1) {
_rpmalloc_heap_cache_adopt_deferred(heap, &span);
} else {
_rpmalloc_heap_cache_adopt_deferred(heap, 0);
span = _rpmalloc_heap_thread_cache_extract(heap, span_count);
}
return span;
}
static span_t*
_rpmalloc_heap_reserved_extract(heap_t* heap, size_t span_count) {
if (heap->spans_reserved >= span_count)
return _rpmalloc_span_map(heap, span_count);
return 0;
}
//! Extract a span from the global cache
static span_t*
_rpmalloc_heap_global_cache_extract(heap_t* heap, size_t span_count) {
#if ENABLE_GLOBAL_CACHE
#if ENABLE_THREAD_CACHE
span_cache_t* span_cache;
size_t wanted_count;
if (span_count == 1) {
span_cache = &heap->span_cache;
wanted_count = THREAD_SPAN_CACHE_TRANSFER;
} else {
span_cache = (span_cache_t*)(heap->span_large_cache + (span_count - 2));
wanted_count = THREAD_SPAN_LARGE_CACHE_TRANSFER;
}
span_cache->count = _rpmalloc_global_cache_extract_spans(span_cache->span, span_count, wanted_count);
if (span_cache->count) {
_rpmalloc_stat_add64(&heap->global_to_thread, span_count * span_cache->count * _memory_span_size);
_rpmalloc_stat_add(&heap->span_use[span_count - 1].spans_from_global, span_cache->count);
return span_cache->span[--span_cache->count];
}
#else
span_t* span = 0;
size_t count = _rpmalloc_global_cache_extract_spans(&span, span_count, 1);
if (count) {
_rpmalloc_stat_add64(&heap->global_to_thread, span_count * count * _memory_span_size);
_rpmalloc_stat_add(&heap->span_use[span_count - 1].spans_from_global, count);
return span;
}
#endif
#endif
(void)sizeof(heap);
(void)sizeof(span_count);
return 0;
}
static void
_rpmalloc_inc_span_statistics(heap_t* heap, size_t span_count, uint32_t class_idx) {
(void)sizeof(heap);
(void)sizeof(span_count);
(void)sizeof(class_idx);
#if ENABLE_ADAPTIVE_THREAD_CACHE || ENABLE_STATISTICS
uint32_t idx = (uint32_t)span_count - 1;
uint32_t current_count = (uint32_t)atomic_incr32(&heap->span_use[idx].current);
if (current_count > (uint32_t)atomic_load32(&heap->span_use[idx].high))
atomic_store32(&heap->span_use[idx].high, (int32_t)current_count);
_rpmalloc_stat_add_peak(&heap->size_class_use[class_idx].spans_current, 1, heap->size_class_use[class_idx].spans_peak);
#endif
}
//! Get a span from one of the cache levels (thread cache, reserved, global cache) or fallback to mapping more memory
static span_t*
_rpmalloc_heap_extract_new_span(heap_t* heap, heap_size_class_t* heap_size_class, size_t span_count, uint32_t class_idx) {
span_t* span;
#if ENABLE_THREAD_CACHE
if (heap_size_class && heap_size_class->cache) {
span = heap_size_class->cache;
heap_size_class->cache = (heap->span_cache.count ? heap->span_cache.span[--heap->span_cache.count] : 0);
_rpmalloc_inc_span_statistics(heap, span_count, class_idx);
return span;
}
#endif
(void)sizeof(class_idx);
// Allow 50% overhead to increase cache hits
size_t base_span_count = span_count;
size_t limit_span_count = (span_count > 2) ? (span_count + (span_count >> 1)) : span_count;
if (limit_span_count > LARGE_CLASS_COUNT)
limit_span_count = LARGE_CLASS_COUNT;
do {
span = _rpmalloc_heap_thread_cache_extract(heap, span_count);
if (EXPECTED(span != 0)) {
_rpmalloc_stat_inc(&heap->size_class_use[class_idx].spans_from_cache);
_rpmalloc_inc_span_statistics(heap, span_count, class_idx);
return span;
}
span = _rpmalloc_heap_thread_cache_deferred_extract(heap, span_count);
if (EXPECTED(span != 0)) {
_rpmalloc_stat_inc(&heap->size_class_use[class_idx].spans_from_cache);
_rpmalloc_inc_span_statistics(heap, span_count, class_idx);
return span;
}
span = _rpmalloc_heap_reserved_extract(heap, span_count);
if (EXPECTED(span != 0)) {
_rpmalloc_stat_inc(&heap->size_class_use[class_idx].spans_from_reserved);
_rpmalloc_inc_span_statistics(heap, span_count, class_idx);
return span;
}
span = _rpmalloc_heap_global_cache_extract(heap, span_count);
if (EXPECTED(span != 0)) {
_rpmalloc_stat_inc(&heap->size_class_use[class_idx].spans_from_cache);
_rpmalloc_inc_span_statistics(heap, span_count, class_idx);
return span;
}
++span_count;
} while (span_count <= limit_span_count);
//Final fallback, map in more virtual memory
span = _rpmalloc_span_map(heap, base_span_count);
_rpmalloc_inc_span_statistics(heap, base_span_count, class_idx);
_rpmalloc_stat_inc(&heap->size_class_use[class_idx].spans_map_calls);
return span;
}
static void
_rpmalloc_heap_initialize(heap_t* heap) {
memset((void*)heap, 0, sizeof(heap_t));
//Get a new heap ID
heap->id = 1 + atomic_incr32(&_memory_heap_id);
//Link in heap in heap ID map
size_t list_idx = (size_t)heap->id % HEAP_ARRAY_SIZE;
heap->next_heap = _memory_heaps[list_idx];
_memory_heaps[list_idx] = heap;
}
static void
_rpmalloc_heap_orphan(heap_t* heap, int first_class) {
heap->owner_thread = (uintptr_t)-1;
#if RPMALLOC_FIRST_CLASS_HEAPS
heap_t** heap_list = (first_class ? &_memory_first_class_orphan_heaps : &_memory_orphan_heaps);
#else
(void)sizeof(first_class);
heap_t** heap_list = &_memory_orphan_heaps;
#endif
heap->next_orphan = *heap_list;
*heap_list = heap;
}
//! Allocate a new heap from newly mapped memory pages
static heap_t*
_rpmalloc_heap_allocate_new(void) {
// Map in pages for a 16 heaps. If page size is greater than required size for this, map a page and
// use first part for heaps and remaining part for spans for allocations. Adds a lot of complexity,
// but saves a lot of memory on systems where page size > 64 spans (4MiB)
size_t heap_size = sizeof(heap_t);
size_t aligned_heap_size = 16 * ((heap_size + 15) / 16);
size_t request_heap_count = 16;
size_t heap_span_count = ((aligned_heap_size * request_heap_count) + sizeof(span_t) + _memory_span_size - 1) / _memory_span_size;
size_t block_size = _memory_span_size * heap_span_count;
size_t span_count = heap_span_count;
span_t* span = 0;
// If there are global reserved spans, use these first
if (_memory_global_reserve_count >= heap_span_count) {
span = _rpmalloc_global_get_reserved_spans(heap_span_count);
}
if (!span) {
if (_memory_page_size > block_size) {
span_count = _memory_page_size / _memory_span_size;
block_size = _memory_page_size;
// If using huge pages, make sure to grab enough heaps to avoid reallocating a huge page just to serve new heaps
size_t possible_heap_count = (block_size - sizeof(span_t)) / aligned_heap_size;
if (possible_heap_count >= (request_heap_count * 16))
request_heap_count *= 16;
else if (possible_heap_count < request_heap_count)
request_heap_count = possible_heap_count;
heap_span_count = ((aligned_heap_size * request_heap_count) + sizeof(span_t) + _memory_span_size - 1) / _memory_span_size;
}
size_t align_offset = 0;
span = (span_t*)_rpmalloc_mmap(block_size, &align_offset);
if (!span)
return 0;
// Master span will contain the heaps
_rpmalloc_stat_inc(&_master_spans);
_rpmalloc_span_initialize(span, span_count, heap_span_count, align_offset);
}
size_t remain_size = _memory_span_size - sizeof(span_t);
heap_t* heap = (heap_t*)pointer_offset(span, sizeof(span_t));
_rpmalloc_heap_initialize(heap);
// Put extra heaps as orphans
size_t num_heaps = remain_size / aligned_heap_size;
if (num_heaps < request_heap_count)
num_heaps = request_heap_count;
atomic_store32(&heap->child_count, (int32_t)num_heaps - 1);
heap_t* extra_heap = (heap_t*)pointer_offset(heap, aligned_heap_size);
while (num_heaps > 1) {
_rpmalloc_heap_initialize(extra_heap);
extra_heap->master_heap = heap;
_rpmalloc_heap_orphan(extra_heap, 1);
extra_heap = (heap_t*)pointer_offset(extra_heap, aligned_heap_size);
--num_heaps;
}
if (span_count > heap_span_count) {
// Cap reserved spans
size_t remain_count = span_count - heap_span_count;
size_t reserve_count = (remain_count > _memory_heap_reserve_count ? _memory_heap_reserve_count : remain_count);
span_t* remain_span = (span_t*)pointer_offset(span, heap_span_count * _memory_span_size);
_rpmalloc_heap_set_reserved_spans(heap, span, remain_span, reserve_count);
if (remain_count > reserve_count) {
// Set to global reserved spans
remain_span = (span_t*)pointer_offset(remain_span, reserve_count * _memory_span_size);
reserve_count = remain_count - reserve_count;
_rpmalloc_global_set_reserved_spans(span, remain_span, reserve_count);
}
}
return heap;
}
static heap_t*
_rpmalloc_heap_extract_orphan(heap_t** heap_list) {
heap_t* heap = *heap_list;
*heap_list = (heap ? heap->next_orphan : 0);
return heap;
}
//! Allocate a new heap, potentially reusing a previously orphaned heap
static heap_t*
_rpmalloc_heap_allocate(int first_class) {
heap_t* heap = 0;
while (!atomic_cas32_acquire(&_memory_global_lock, 1, 0))
_rpmalloc_spin();
if (first_class == 0)
heap = _rpmalloc_heap_extract_orphan(&_memory_orphan_heaps);
#if RPMALLOC_FIRST_CLASS_HEAPS
if (!heap)
heap = _rpmalloc_heap_extract_orphan(&_memory_first_class_orphan_heaps);
#endif
if (!heap)
heap = _rpmalloc_heap_allocate_new();
atomic_store32_release(&_memory_global_lock, 0);
_rpmalloc_heap_cache_adopt_deferred(heap, 0);
return heap;
}
extern thread_local bool RpThreadShutdown;
static void
_rpmalloc_heap_release(void* heapptr, int first_class, int release_cache) {
heap_t* heap = (heap_t*)heapptr;
if (!heap)
return;
RpThreadShutdown = true;
//Release thread cache spans back to global cache
_rpmalloc_heap_cache_adopt_deferred(heap, 0);
if (release_cache || heap->finalize) {
#if ENABLE_THREAD_CACHE
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
span_cache_t* span_cache;
if (!iclass)
span_cache = &heap->span_cache;
else
span_cache = (span_cache_t*)(heap->span_large_cache + (iclass - 1));
if (!span_cache->count)
continue;
#if ENABLE_GLOBAL_CACHE
if (heap->finalize) {
for (size_t ispan = 0; ispan < span_cache->count; ++ispan)
_rpmalloc_span_unmap(span_cache->span[ispan]);
} else {
_rpmalloc_stat_add64(&heap->thread_to_global, span_cache->count * (iclass + 1) * _memory_span_size);
_rpmalloc_stat_add(&heap->span_use[iclass].spans_to_global, span_cache->count);
_rpmalloc_global_cache_insert_spans(span_cache->span, iclass + 1, span_cache->count);
}
#else
for (size_t ispan = 0; ispan < span_cache->count; ++ispan)
_rpmalloc_span_unmap(span_cache->span[ispan]);
#endif
span_cache->count = 0;
}
#endif
}
if (get_thread_heap_raw() == heap)
set_thread_heap(0);
#if ENABLE_STATISTICS
atomic_decr32(&_memory_active_heaps);
rpmalloc_assert(atomic_load32(&_memory_active_heaps) >= 0, "Still active heaps during finalization");
#endif
// If we are forcibly terminating with _exit the state of the
// lock atomic is unknown and it's best to just go ahead and exit
if (get_thread_id() != _rpmalloc_main_thread_id) {
while (!atomic_cas32_acquire(&_memory_global_lock, 1, 0))
_rpmalloc_spin();
}
_rpmalloc_heap_orphan(heap, first_class);
atomic_store32_release(&_memory_global_lock, 0);
}
static void
_rpmalloc_heap_release_raw(void* heapptr, int release_cache) {
_rpmalloc_heap_release(heapptr, 0, release_cache);
}
static void
_rpmalloc_heap_release_raw_fc(void* heapptr) {
_rpmalloc_heap_release_raw(heapptr, 1);
}
static void
_rpmalloc_heap_finalize(heap_t* heap) {
if (heap->spans_reserved) {
span_t* span = _rpmalloc_span_map(heap, heap->spans_reserved);
_rpmalloc_span_unmap(span);
heap->spans_reserved = 0;
}
_rpmalloc_heap_cache_adopt_deferred(heap, 0);
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
if (heap->size_class[iclass].cache)
_rpmalloc_span_unmap(heap->size_class[iclass].cache);
heap->size_class[iclass].cache = 0;
span_t* span = heap->size_class[iclass].partial_span;
while (span) {
span_t* next = span->next;
_rpmalloc_span_finalize(heap, iclass, span, &heap->size_class[iclass].partial_span);
span = next;
}
// If class still has a free list it must be a full span
if (heap->size_class[iclass].free_list) {
span_t* class_span = (span_t*)((uintptr_t)heap->size_class[iclass].free_list & _memory_span_mask);
span_t** list = 0;
#if RPMALLOC_FIRST_CLASS_HEAPS
list = &heap->full_span[iclass];
#endif
--heap->full_span_count;
if (!_rpmalloc_span_finalize(heap, iclass, class_span, list)) {
if (list)
_rpmalloc_span_double_link_list_remove(list, class_span);
_rpmalloc_span_double_link_list_add(&heap->size_class[iclass].partial_span, class_span);
}
}
}
#if ENABLE_THREAD_CACHE
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
span_cache_t* span_cache;
if (!iclass)
span_cache = &heap->span_cache;
else
span_cache = (span_cache_t*)(heap->span_large_cache + (iclass - 1));
for (size_t ispan = 0; ispan < span_cache->count; ++ispan)
_rpmalloc_span_unmap(span_cache->span[ispan]);
span_cache->count = 0;
}
#endif
rpmalloc_assert(!atomic_load_ptr(&heap->span_free_deferred), "Heaps still active during finalization");
}
////////////
///
/// Allocation entry points
///
//////
//! Pop first block from a free list
static void*
free_list_pop(void** list) {
void* block = *list;
*list = *((void**)block);
return block;
}
//! Allocate a small/medium sized memory block from the given heap
static void*
_rpmalloc_allocate_from_heap_fallback(heap_t* heap, heap_size_class_t* heap_size_class, uint32_t class_idx) {
span_t* span = heap_size_class->partial_span;
if (EXPECTED(span != 0)) {
rpmalloc_assert(span->block_count == _memory_size_class[span->size_class].block_count, "Span block count corrupted");
rpmalloc_assert(!_rpmalloc_span_is_fully_utilized(span), "Internal failure");
void* block;
if (span->free_list) {
//Span local free list is not empty, swap to size class free list
block = free_list_pop(&span->free_list);
heap_size_class->free_list = span->free_list;
span->free_list = 0;
} else {
//If the span did not fully initialize free list, link up another page worth of blocks
void* block_start = pointer_offset(span, SPAN_HEADER_SIZE + ((size_t)span->free_list_limit * span->block_size));
span->free_list_limit += free_list_partial_init(&heap_size_class->free_list, &block,
(void*)((uintptr_t)block_start & ~(_memory_page_size - 1)), block_start,
span->block_count - span->free_list_limit, span->block_size);
}
rpmalloc_assert(span->free_list_limit <= span->block_count, "Span block count corrupted");
span->used_count = span->free_list_limit;
//Swap in deferred free list if present
if (atomic_load_ptr(&span->free_list_deferred))
_rpmalloc_span_extract_free_list_deferred(span);
//If span is still not fully utilized keep it in partial list and early return block
if (!_rpmalloc_span_is_fully_utilized(span))
return block;
//The span is fully utilized, unlink from partial list and add to fully utilized list
_rpmalloc_span_double_link_list_pop_head(&heap_size_class->partial_span, span);
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_add(&heap->full_span[class_idx], span);
#endif
++heap->full_span_count;
return block;
}
//Find a span in one of the cache levels
span = _rpmalloc_heap_extract_new_span(heap, heap_size_class, 1, class_idx);
if (EXPECTED(span != 0)) {
//Mark span as owned by this heap and set base data, return first block
return _rpmalloc_span_initialize_new(heap, heap_size_class, span, class_idx);
}
return 0;
}
//! Allocate a small sized memory block from the given heap
static void*
_rpmalloc_allocate_small(heap_t* heap, size_t size) {
rpmalloc_assert(heap, "No thread heap");
//Small sizes have unique size classes
const uint32_t class_idx = (uint32_t)((size + (SMALL_GRANULARITY - 1)) >> SMALL_GRANULARITY_SHIFT);
heap_size_class_t* heap_size_class = heap->size_class + class_idx;
_rpmalloc_stat_inc_alloc(heap, class_idx);
if (EXPECTED(heap_size_class->free_list != 0))
return free_list_pop(&heap_size_class->free_list);
return _rpmalloc_allocate_from_heap_fallback(heap, heap_size_class, class_idx);
}
//! Allocate a medium sized memory block from the given heap
static void*
_rpmalloc_allocate_medium(heap_t* heap, size_t size) {
rpmalloc_assert(heap, "No thread heap");
//Calculate the size class index and do a dependent lookup of the final class index (in case of merged classes)
const uint32_t base_idx = (uint32_t)(SMALL_CLASS_COUNT + ((size - (SMALL_SIZE_LIMIT + 1)) >> MEDIUM_GRANULARITY_SHIFT));
const uint32_t class_idx = _memory_size_class[base_idx].class_idx;
heap_size_class_t* heap_size_class = heap->size_class + class_idx;
_rpmalloc_stat_inc_alloc(heap, class_idx);
if (EXPECTED(heap_size_class->free_list != 0))
return free_list_pop(&heap_size_class->free_list);
return _rpmalloc_allocate_from_heap_fallback(heap, heap_size_class, class_idx);
}
//! Allocate a large sized memory block from the given heap
static void*
_rpmalloc_allocate_large(heap_t* heap, size_t size) {
rpmalloc_assert(heap, "No thread heap");
//Calculate number of needed max sized spans (including header)
//Since this function is never called if size > LARGE_SIZE_LIMIT
//the span_count is guaranteed to be <= LARGE_CLASS_COUNT
size += SPAN_HEADER_SIZE;
size_t span_count = size >> _memory_span_size_shift;
if (size & (_memory_span_size - 1))
++span_count;
//Find a span in one of the cache levels
span_t* span = _rpmalloc_heap_extract_new_span(heap, 0, span_count, SIZE_CLASS_LARGE);
if (!span)
return span;
//Mark span as owned by this heap and set base data
rpmalloc_assert(span->span_count >= span_count, "Internal failure");
span->size_class = SIZE_CLASS_LARGE;
span->heap = heap;
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_add(&heap->large_huge_span, span);
#endif
++heap->full_span_count;
return pointer_offset(span, SPAN_HEADER_SIZE);
}
//! Allocate a huge block by mapping memory pages directly
static void*
_rpmalloc_allocate_huge(heap_t* heap, size_t size) {
rpmalloc_assert(heap, "No thread heap");
_rpmalloc_heap_cache_adopt_deferred(heap, 0);
size += SPAN_HEADER_SIZE;
size_t num_pages = size >> _memory_page_size_shift;
if (size & (_memory_page_size - 1))
++num_pages;
size_t align_offset = 0;
span_t* span = (span_t*)_rpmalloc_mmap(num_pages * _memory_page_size, &align_offset);
if (!span)
return span;
//Store page count in span_count
span->size_class = SIZE_CLASS_HUGE;
span->span_count = (uint32_t)num_pages;
span->align_offset = (uint32_t)align_offset;
span->heap = heap;
_rpmalloc_stat_add_peak(&_huge_pages_current, num_pages, _huge_pages_peak);
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_add(&heap->large_huge_span, span);
#endif
++heap->full_span_count;
return pointer_offset(span, SPAN_HEADER_SIZE);
}
//! Allocate a block of the given size
static void*
_rpmalloc_allocate(heap_t* heap, size_t size) {
_rpmalloc_stat_add64(&_allocation_counter, 1);
if (EXPECTED(size <= SMALL_SIZE_LIMIT))
return _rpmalloc_allocate_small(heap, size);
else if (size <= _memory_medium_size_limit)
return _rpmalloc_allocate_medium(heap, size);
else if (size <= LARGE_SIZE_LIMIT)
return _rpmalloc_allocate_large(heap, size);
return _rpmalloc_allocate_huge(heap, size);
}
static void*
_rpmalloc_aligned_allocate(heap_t* heap, size_t alignment, size_t size) {
if (alignment <= SMALL_GRANULARITY)
return _rpmalloc_allocate(heap, size);
#if ENABLE_VALIDATE_ARGS
if ((size + alignment) < size) {
errno = EINVAL;
return 0;
}
if (alignment & (alignment - 1)) {
errno = EINVAL;
return 0;
}
#endif
if ((alignment <= SPAN_HEADER_SIZE) && (size < _memory_medium_size_limit)) {
// If alignment is less or equal to span header size (which is power of two),
// and size aligned to span header size multiples is less than size + alignment,
// then use natural alignment of blocks to provide alignment
size_t multiple_size = size ? (size + (SPAN_HEADER_SIZE - 1)) & ~(uintptr_t)(SPAN_HEADER_SIZE - 1) : SPAN_HEADER_SIZE;
rpmalloc_assert(!(multiple_size % SPAN_HEADER_SIZE), "Failed alignment calculation");
if (multiple_size <= (size + alignment))
return _rpmalloc_allocate(heap, multiple_size);
}
void* ptr = 0;
size_t align_mask = alignment - 1;
if (alignment <= _memory_page_size) {
ptr = _rpmalloc_allocate(heap, size + alignment);
if ((uintptr_t)ptr & align_mask) {
ptr = (void*)(((uintptr_t)ptr & ~(uintptr_t)align_mask) + alignment);
//Mark as having aligned blocks
span_t* span = (span_t*)((uintptr_t)ptr & _memory_span_mask);
span->flags |= SPAN_FLAG_ALIGNED_BLOCKS;
}
return ptr;
}
// Fallback to mapping new pages for this request. Since pointers passed
// to rpfree must be able to reach the start of the span by bitmasking of
// the address with the span size, the returned aligned pointer from this
// function must be with a span size of the start of the mapped area.
// In worst case this requires us to loop and map pages until we get a
// suitable memory address. It also means we can never align to span size
// or greater, since the span header will push alignment more than one
// span size away from span start (thus causing pointer mask to give us
// an invalid span start on free)
if (alignment & align_mask) {
errno = EINVAL;
return 0;
}
if (alignment >= _memory_span_size) {
errno = EINVAL;
return 0;
}
size_t extra_pages = alignment / _memory_page_size;
// Since each span has a header, we will at least need one extra memory page
size_t num_pages = 1 + (size / _memory_page_size);
if (size & (_memory_page_size - 1))
++num_pages;
if (extra_pages > num_pages)
num_pages = 1 + extra_pages;
size_t original_pages = num_pages;
size_t limit_pages = (_memory_span_size / _memory_page_size) * 2;
if (limit_pages < (original_pages * 2))
limit_pages = original_pages * 2;
size_t mapped_size, align_offset;
span_t* span;
retry:
align_offset = 0;
mapped_size = num_pages * _memory_page_size;
span = (span_t*)_rpmalloc_mmap(mapped_size, &align_offset);
if (!span) {
errno = ENOMEM;
return 0;
}
ptr = pointer_offset(span, SPAN_HEADER_SIZE);
if ((uintptr_t)ptr & align_mask)
ptr = (void*)(((uintptr_t)ptr & ~(uintptr_t)align_mask) + alignment);
if (((size_t)pointer_diff(ptr, span) >= _memory_span_size) ||
(pointer_offset(ptr, size) > pointer_offset(span, mapped_size)) ||
(((uintptr_t)ptr & _memory_span_mask) != (uintptr_t)span)) {
_rpmalloc_unmap(span, mapped_size, align_offset, mapped_size);
++num_pages;
if (num_pages > limit_pages) {
errno = EINVAL;
return 0;
}
goto retry;
}
//Store page count in span_count
span->size_class = SIZE_CLASS_HUGE;
span->span_count = (uint32_t)num_pages;
span->align_offset = (uint32_t)align_offset;
span->heap = heap;
_rpmalloc_stat_add_peak(&_huge_pages_current, num_pages, _huge_pages_peak);
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_add(&heap->large_huge_span, span);
#endif
++heap->full_span_count;
_rpmalloc_stat_add64(&_allocation_counter, 1);
return ptr;
}
////////////
///
/// Deallocation entry points
///
//////
//! Deallocate the given small/medium memory block in the current thread local heap
static void
_rpmalloc_deallocate_direct_small_or_medium(span_t* span, void* block) {
heap_t* heap = span->heap;
rpmalloc_assert(heap->owner_thread == get_thread_id() || !heap->owner_thread || heap->finalize, "Internal failure");
//Add block to free list
if (UNEXPECTED(_rpmalloc_span_is_fully_utilized(span))) {
span->used_count = span->block_count;
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_remove(&heap->full_span[span->size_class], span);
#endif
_rpmalloc_span_double_link_list_add(&heap->size_class[span->size_class].partial_span, span);
--heap->full_span_count;
}
*((void**)block) = span->free_list;
--span->used_count;
span->free_list = block;
if (UNEXPECTED(span->used_count == span->list_size)) {
// If there are no used blocks it is guaranteed that no other external thread is accessing the span
if (span->used_count) {
// Make sure we have synchronized the deferred list and list size by using acquire semantics
// and guarantee that no external thread is accessing span concurrently
void* free_list;
do {
free_list = atomic_exchange_ptr_acquire(&span->free_list_deferred, INVALID_POINTER);
} while (free_list == INVALID_POINTER);
atomic_store_ptr_release(&span->free_list_deferred, free_list);
}
_rpmalloc_span_double_link_list_remove(&heap->size_class[span->size_class].partial_span, span);
_rpmalloc_span_release_to_cache(heap, span);
}
}
static void
_rpmalloc_deallocate_defer_free_span(heap_t* heap, span_t* span) {
if (span->size_class != SIZE_CLASS_HUGE)
_rpmalloc_stat_inc(&heap->span_use[span->span_count - 1].spans_deferred);
//This list does not need ABA protection, no mutable side state
do {
span->free_list = (void*)atomic_load_ptr(&heap->span_free_deferred);
} while (!atomic_cas_ptr(&heap->span_free_deferred, span, span->free_list));
}
//! Put the block in the deferred free list of the owning span
static void
_rpmalloc_deallocate_defer_small_or_medium(span_t* span, void* block) {
// The memory ordering here is a bit tricky, to avoid having to ABA protect
// the deferred free list to avoid desynchronization of list and list size
// we need to have acquire semantics on successful CAS of the pointer to
// guarantee the list_size variable validity + release semantics on pointer store
void* free_list;
do {
free_list = atomic_exchange_ptr_acquire(&span->free_list_deferred, INVALID_POINTER);
} while (free_list == INVALID_POINTER);
*((void**)block) = free_list;
uint32_t free_count = ++span->list_size;
int all_deferred_free = (free_count == span->block_count);
atomic_store_ptr_release(&span->free_list_deferred, block);
if (all_deferred_free) {
// Span was completely freed by this block. Due to the INVALID_POINTER spin lock
// no other thread can reach this state simultaneously on this span.
// Safe to move to owner heap deferred cache
_rpmalloc_deallocate_defer_free_span(span->heap, span);
}
}
static void
_rpmalloc_deallocate_small_or_medium(span_t* span, void* p) {
_rpmalloc_stat_inc_free(span->heap, span->size_class);
if (span->flags & SPAN_FLAG_ALIGNED_BLOCKS) {
//Realign pointer to block start
void* blocks_start = pointer_offset(span, SPAN_HEADER_SIZE);
uint32_t block_offset = (uint32_t)pointer_diff(p, blocks_start);
p = pointer_offset(p, -(int32_t)(block_offset % span->block_size));
}
//Check if block belongs to this heap or if deallocation should be deferred
#if RPMALLOC_FIRST_CLASS_HEAPS
int defer = (span->heap->owner_thread && (span->heap->owner_thread != get_thread_id()) && !span->heap->finalize);
#else
int defer = ((span->heap->owner_thread != get_thread_id()) && !span->heap->finalize);
#endif
if (!defer)
_rpmalloc_deallocate_direct_small_or_medium(span, p);
else
_rpmalloc_deallocate_defer_small_or_medium(span, p);
}
//! Deallocate the given large memory block to the current heap
static void
_rpmalloc_deallocate_large(span_t* span) {
rpmalloc_assert(span->size_class == SIZE_CLASS_LARGE, "Bad span size class");
rpmalloc_assert(!(span->flags & SPAN_FLAG_MASTER) || !(span->flags & SPAN_FLAG_SUBSPAN), "Span flag corrupted");
rpmalloc_assert((span->flags & SPAN_FLAG_MASTER) || (span->flags & SPAN_FLAG_SUBSPAN), "Span flag corrupted");
//We must always defer (unless finalizing) if from another heap since we cannot touch the list or counters of another heap
#if RPMALLOC_FIRST_CLASS_HEAPS
int defer = (span->heap->owner_thread && (span->heap->owner_thread != get_thread_id()) && !span->heap->finalize);
#else
int defer = ((span->heap->owner_thread != get_thread_id()) && !span->heap->finalize);
#endif
if (defer) {
_rpmalloc_deallocate_defer_free_span(span->heap, span);
return;
}
rpmalloc_assert(span->heap->full_span_count, "Heap span counter corrupted");
--span->heap->full_span_count;
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_remove(&span->heap->large_huge_span, span);
#endif
#if ENABLE_ADAPTIVE_THREAD_CACHE || ENABLE_STATISTICS
//Decrease counter
size_t idx = span->span_count - 1;
atomic_decr32(&span->heap->span_use[idx].current);
#endif
heap_t* heap = span->heap;
rpmalloc_assert(heap, "No thread heap");
#if ENABLE_THREAD_CACHE
const int set_as_reserved = ((span->span_count > 1) && (heap->span_cache.count == 0) && !heap->finalize && !heap->spans_reserved);
#else
const int set_as_reserved = ((span->span_count > 1) && !heap->finalize && !heap->spans_reserved);
#endif
if (set_as_reserved) {
heap->span_reserve = span;
heap->spans_reserved = span->span_count;
if (span->flags & SPAN_FLAG_MASTER) {
heap->span_reserve_master = span;
} else { //SPAN_FLAG_SUBSPAN
span_t* master = (span_t*)pointer_offset(span, -(intptr_t)((size_t)span->offset_from_master * _memory_span_size));
heap->span_reserve_master = master;
rpmalloc_assert(master->flags & SPAN_FLAG_MASTER, "Span flag corrupted");
rpmalloc_assert(atomic_load32(&master->remaining_spans) >= (int32_t)span->span_count, "Master span count corrupted");
}
_rpmalloc_stat_inc(&heap->span_use[idx].spans_to_reserved);
} else {
//Insert into cache list
_rpmalloc_heap_cache_insert(heap, span);
}
}
//! Deallocate the given huge span
static void
_rpmalloc_deallocate_huge(span_t* span) {
rpmalloc_assert(span->heap, "No span heap");
#if RPMALLOC_FIRST_CLASS_HEAPS
int defer = (span->heap->owner_thread && (span->heap->owner_thread != get_thread_id()) && !span->heap->finalize);
#else
int defer = ((span->heap->owner_thread != get_thread_id()) && !span->heap->finalize);
#endif
if (defer) {
_rpmalloc_deallocate_defer_free_span(span->heap, span);
return;
}
rpmalloc_assert(span->heap->full_span_count, "Heap span counter corrupted");
--span->heap->full_span_count;
#if RPMALLOC_FIRST_CLASS_HEAPS
_rpmalloc_span_double_link_list_remove(&span->heap->large_huge_span, span);
#endif
//Oversized allocation, page count is stored in span_count
size_t num_pages = span->span_count;
_rpmalloc_unmap(span, num_pages * _memory_page_size, span->align_offset, num_pages * _memory_page_size);
_rpmalloc_stat_sub(&_huge_pages_current, num_pages);
}
//! Deallocate the given block
static void
_rpmalloc_deallocate(void* p) {
_rpmalloc_stat_add64(&_deallocation_counter, 1);
//Grab the span (always at start of span, using span alignment)
span_t* span = (span_t*)((uintptr_t)p & _memory_span_mask);
if (UNEXPECTED(!span))
return;
if (EXPECTED(span->size_class < SIZE_CLASS_COUNT))
_rpmalloc_deallocate_small_or_medium(span, p);
else if (span->size_class == SIZE_CLASS_LARGE)
_rpmalloc_deallocate_large(span);
else
_rpmalloc_deallocate_huge(span);
}
////////////
///
/// Reallocation entry points
///
//////
static size_t
_rpmalloc_usable_size(void* p);
//! Reallocate the given block to the given size
static void*
_rpmalloc_reallocate(heap_t* heap, void* p, size_t size, size_t oldsize, unsigned int flags) {
if (p) {
//Grab the span using guaranteed span alignment
span_t* span = (span_t*)((uintptr_t)p & _memory_span_mask);
if (EXPECTED(span->size_class < SIZE_CLASS_COUNT)) {
//Small/medium sized block
rpmalloc_assert(span->span_count == 1, "Span counter corrupted");
void* blocks_start = pointer_offset(span, SPAN_HEADER_SIZE);
uint32_t block_offset = (uint32_t)pointer_diff(p, blocks_start);
uint32_t block_idx = block_offset / span->block_size;
void* block = pointer_offset(blocks_start, (size_t)block_idx * span->block_size);
if (!oldsize)
oldsize = (size_t)((ptrdiff_t)span->block_size - pointer_diff(p, block));
if ((size_t)span->block_size >= size) {
//Still fits in block, never mind trying to save memory, but preserve data if alignment changed
if ((p != block) && !(flags & RPMALLOC_NO_PRESERVE))
memmove(block, p, oldsize);
return block;
}
} else if (span->size_class == SIZE_CLASS_LARGE) {
//Large block
size_t total_size = size + SPAN_HEADER_SIZE;
size_t num_spans = total_size >> _memory_span_size_shift;
if (total_size & (_memory_span_mask - 1))
++num_spans;
size_t current_spans = span->span_count;
void* block = pointer_offset(span, SPAN_HEADER_SIZE);
if (!oldsize)
oldsize = (current_spans * _memory_span_size) - (size_t)pointer_diff(p, block) - SPAN_HEADER_SIZE;
if ((current_spans >= num_spans) && (total_size >= (oldsize / 2))) {
//Still fits in block, never mind trying to save memory, but preserve data if alignment changed
if ((p != block) && !(flags & RPMALLOC_NO_PRESERVE))
memmove(block, p, oldsize);
return block;
}
} else {
//Oversized block
size_t total_size = size + SPAN_HEADER_SIZE;
size_t num_pages = total_size >> _memory_page_size_shift;
if (total_size & (_memory_page_size - 1))
++num_pages;
//Page count is stored in span_count
size_t current_pages = span->span_count;
void* block = pointer_offset(span, SPAN_HEADER_SIZE);
if (!oldsize)
oldsize = (current_pages * _memory_page_size) - (size_t)pointer_diff(p, block) - SPAN_HEADER_SIZE;
if ((current_pages >= num_pages) && (num_pages >= (current_pages / 2))) {
//Still fits in block, never mind trying to save memory, but preserve data if alignment changed
if ((p != block) && !(flags & RPMALLOC_NO_PRESERVE))
memmove(block, p, oldsize);
return block;
}
}
} else {
oldsize = 0;
}
if (!!(flags & RPMALLOC_GROW_OR_FAIL))
return 0;
//Size is greater than block size, need to allocate a new block and deallocate the old
//Avoid hysteresis by overallocating if increase is small (below 37%)
size_t lower_bound = oldsize + (oldsize >> 2) + (oldsize >> 3);
size_t new_size = (size > lower_bound) ? size : ((size > oldsize) ? lower_bound : size);
void* block = _rpmalloc_allocate(heap, new_size);
if (p && block) {
if (!(flags & RPMALLOC_NO_PRESERVE))
memcpy(block, p, oldsize < new_size ? oldsize : new_size);
_rpmalloc_deallocate(p);
}
return block;
}
static void*
_rpmalloc_aligned_reallocate(heap_t* heap, void* ptr, size_t alignment, size_t size, size_t oldsize,
unsigned int flags) {
if (alignment <= SMALL_GRANULARITY)
return _rpmalloc_reallocate(heap, ptr, size, oldsize, flags);
int no_alloc = !!(flags & RPMALLOC_GROW_OR_FAIL);
size_t usablesize = (ptr ? _rpmalloc_usable_size(ptr) : 0);
if ((usablesize >= size) && !((uintptr_t)ptr & (alignment - 1))) {
if (no_alloc || (size >= (usablesize / 2)))
return ptr;
}
// Aligned alloc marks span as having aligned blocks
void* block = (!no_alloc ? _rpmalloc_aligned_allocate(heap, alignment, size) : 0);
if (EXPECTED(block != 0)) {
if (!(flags & RPMALLOC_NO_PRESERVE) && ptr) {
if (!oldsize)
oldsize = usablesize;
memcpy(block, ptr, oldsize < size ? oldsize : size);
}
_rpmalloc_deallocate(ptr);
}
return block;
}
////////////
///
/// Initialization, finalization and utility
///
//////
//! Get the usable size of the given block
static size_t
_rpmalloc_usable_size(void* p) {
//Grab the span using guaranteed span alignment
span_t* span = (span_t*)((uintptr_t)p & _memory_span_mask);
if (span->size_class < SIZE_CLASS_COUNT) {
//Small/medium block
void* blocks_start = pointer_offset(span, SPAN_HEADER_SIZE);
return span->block_size - ((size_t)pointer_diff(p, blocks_start) % span->block_size);
}
if (span->size_class == SIZE_CLASS_LARGE) {
//Large block
size_t current_spans = span->span_count;
return (current_spans * _memory_span_size) - (size_t)pointer_diff(p, span);
}
//Oversized block, page count is stored in span_count
size_t current_pages = span->span_count;
return (current_pages * _memory_page_size) - (size_t)pointer_diff(p, span);
}
//! Adjust and optimize the size class properties for the given class
static void
_rpmalloc_adjust_size_class(size_t iclass) {
size_t block_size = _memory_size_class[iclass].block_size;
size_t block_count = (_memory_span_size - SPAN_HEADER_SIZE) / block_size;
_memory_size_class[iclass].block_count = (uint16_t)block_count;
_memory_size_class[iclass].class_idx = (uint16_t)iclass;
//Check if previous size classes can be merged
if (iclass >= SMALL_CLASS_COUNT) {
size_t prevclass = iclass;
while (prevclass > 0) {
--prevclass;
//A class can be merged if number of pages and number of blocks are equal
if (_memory_size_class[prevclass].block_count == _memory_size_class[iclass].block_count)
memcpy(_memory_size_class + prevclass, _memory_size_class + iclass, sizeof(_memory_size_class[iclass]));
else
break;
}
}
}
//! Initialize the allocator and setup global data
TRACY_API int
rpmalloc_initialize(void) {
if (_rpmalloc_initialized) {
rpmalloc_thread_initialize();
return 0;
}
return rpmalloc_initialize_config(0);
}
int
rpmalloc_initialize_config(const rpmalloc_config_t* config) {
if (_rpmalloc_initialized) {
rpmalloc_thread_initialize();
return 0;
}
_rpmalloc_initialized = 1;
if (config)
memcpy(&_memory_config, config, sizeof(rpmalloc_config_t));
else
memset(&_memory_config, 0, sizeof(rpmalloc_config_t));
if (!_memory_config.memory_map || !_memory_config.memory_unmap) {
_memory_config.memory_map = _rpmalloc_mmap_os;
_memory_config.memory_unmap = _rpmalloc_unmap_os;
}
#if PLATFORM_WINDOWS
SYSTEM_INFO system_info;
memset(&system_info, 0, sizeof(system_info));
GetSystemInfo(&system_info);
_memory_map_granularity = system_info.dwAllocationGranularity;
#else
_memory_map_granularity = (size_t)sysconf(_SC_PAGESIZE);
#endif
#if RPMALLOC_CONFIGURABLE
_memory_page_size = _memory_config.page_size;
#else
_memory_page_size = 0;
#endif
_memory_huge_pages = 0;
if (!_memory_page_size) {
#if PLATFORM_WINDOWS
_memory_page_size = system_info.dwPageSize;
#else
_memory_page_size = _memory_map_granularity;
if (_memory_config.enable_huge_pages) {
#if defined(__linux__)
size_t huge_page_size = 0;
FILE* meminfo = fopen("/proc/meminfo", "r");
if (meminfo) {
char line[128];
while (!huge_page_size && fgets(line, sizeof(line) - 1, meminfo)) {
line[sizeof(line) - 1] = 0;
if (strstr(line, "Hugepagesize:"))
huge_page_size = (size_t)strtol(line + 13, 0, 10) * 1024;
}
fclose(meminfo);
}
if (huge_page_size) {
_memory_huge_pages = 1;
_memory_page_size = huge_page_size;
_memory_map_granularity = huge_page_size;
}
#elif defined(__FreeBSD__)
int rc;
size_t sz = sizeof(rc);
if (sysctlbyname("vm.pmap.pg_ps_enabled", &rc, &sz, NULL, 0) == 0 && rc == 1) {
_memory_huge_pages = 1;
_memory_page_size = 2 * 1024 * 1024;
_memory_map_granularity = _memory_page_size;
}
#elif defined(__APPLE__) || defined(__NetBSD__)
_memory_huge_pages = 1;
_memory_page_size = 2 * 1024 * 1024;
_memory_map_granularity = _memory_page_size;
#endif
}
#endif
} else {
if (_memory_config.enable_huge_pages)
_memory_huge_pages = 1;
}
#if PLATFORM_WINDOWS
if (_memory_config.enable_huge_pages) {
HANDLE token = 0;
size_t large_page_minimum = GetLargePageMinimum();
if (large_page_minimum)
OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token);
if (token) {
LUID luid;
if (LookupPrivilegeValue(0, SE_LOCK_MEMORY_NAME, &luid)) {
TOKEN_PRIVILEGES token_privileges;
memset(&token_privileges, 0, sizeof(token_privileges));
token_privileges.PrivilegeCount = 1;
token_privileges.Privileges[0].Luid = luid;
token_privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (AdjustTokenPrivileges(token, FALSE, &token_privileges, 0, 0, 0)) {
if (GetLastError() == ERROR_SUCCESS)
_memory_huge_pages = 1;
}
}
CloseHandle(token);
}
if (_memory_huge_pages) {
if (large_page_minimum > _memory_page_size)
_memory_page_size = large_page_minimum;
if (large_page_minimum > _memory_map_granularity)
_memory_map_granularity = large_page_minimum;
}
}
#endif
size_t min_span_size = 256;
size_t max_page_size;
#if UINTPTR_MAX > 0xFFFFFFFF
max_page_size = 4096ULL * 1024ULL * 1024ULL;
#else
max_page_size = 4 * 1024 * 1024;
#endif
if (_memory_page_size < min_span_size)
_memory_page_size = min_span_size;
if (_memory_page_size > max_page_size)
_memory_page_size = max_page_size;
_memory_page_size_shift = 0;
size_t page_size_bit = _memory_page_size;
while (page_size_bit != 1) {
++_memory_page_size_shift;
page_size_bit >>= 1;
}
_memory_page_size = ((size_t)1 << _memory_page_size_shift);
#if RPMALLOC_CONFIGURABLE
if (!_memory_config.span_size) {
_memory_span_size = _memory_default_span_size;
_memory_span_size_shift = _memory_default_span_size_shift;
_memory_span_mask = _memory_default_span_mask;
} else {
size_t span_size = _memory_config.span_size;
if (span_size > (256 * 1024))
span_size = (256 * 1024);
_memory_span_size = 4096;
_memory_span_size_shift = 12;
while (_memory_span_size < span_size) {
_memory_span_size <<= 1;
++_memory_span_size_shift;
}
_memory_span_mask = ~(uintptr_t)(_memory_span_size - 1);
}
#endif
_memory_span_map_count = ( _memory_config.span_map_count ? _memory_config.span_map_count : DEFAULT_SPAN_MAP_COUNT);
if ((_memory_span_size * _memory_span_map_count) < _memory_page_size)
_memory_span_map_count = (_memory_page_size / _memory_span_size);
if ((_memory_page_size >= _memory_span_size) && ((_memory_span_map_count * _memory_span_size) % _memory_page_size))
_memory_span_map_count = (_memory_page_size / _memory_span_size);
_memory_heap_reserve_count = (_memory_span_map_count > DEFAULT_SPAN_MAP_COUNT) ? DEFAULT_SPAN_MAP_COUNT : _memory_span_map_count;
_memory_config.page_size = _memory_page_size;
_memory_config.span_size = _memory_span_size;
_memory_config.span_map_count = _memory_span_map_count;
_memory_config.enable_huge_pages = _memory_huge_pages;
#if ((defined(__APPLE__) || defined(__HAIKU__)) && ENABLE_PRELOAD) || defined(__TINYC__)
if (pthread_key_create(&_memory_thread_heap, _rpmalloc_heap_release_raw_fc))
return -1;
#endif
#if defined(_WIN32) && (!defined(BUILD_DYNAMIC_LINK) || !BUILD_DYNAMIC_LINK)
fls_key = FlsAlloc(&_rpmalloc_thread_destructor);
#endif
//Setup all small and medium size classes
size_t iclass = 0;
_memory_size_class[iclass].block_size = SMALL_GRANULARITY;
_rpmalloc_adjust_size_class(iclass);
for (iclass = 1; iclass < SMALL_CLASS_COUNT; ++iclass) {
size_t size = iclass * SMALL_GRANULARITY;
_memory_size_class[iclass].block_size = (uint32_t)size;
_rpmalloc_adjust_size_class(iclass);
}
//At least two blocks per span, then fall back to large allocations
_memory_medium_size_limit = (_memory_span_size - SPAN_HEADER_SIZE) >> 1;
if (_memory_medium_size_limit > MEDIUM_SIZE_LIMIT)
_memory_medium_size_limit = MEDIUM_SIZE_LIMIT;
for (iclass = 0; iclass < MEDIUM_CLASS_COUNT; ++iclass) {
size_t size = SMALL_SIZE_LIMIT + ((iclass + 1) * MEDIUM_GRANULARITY);
if (size > _memory_medium_size_limit)
break;
_memory_size_class[SMALL_CLASS_COUNT + iclass].block_size = (uint32_t)size;
_rpmalloc_adjust_size_class(SMALL_CLASS_COUNT + iclass);
}
_memory_orphan_heaps = 0;
#if RPMALLOC_FIRST_CLASS_HEAPS
_memory_first_class_orphan_heaps = 0;
#endif
#if ENABLE_STATISTICS
atomic_store32(&_memory_active_heaps, 0);
atomic_store32(&_mapped_pages, 0);
_mapped_pages_peak = 0;
atomic_store32(&_master_spans, 0);
atomic_store32(&_mapped_total, 0);
atomic_store32(&_unmapped_total, 0);
atomic_store32(&_mapped_pages_os, 0);
atomic_store32(&_huge_pages_current, 0);
_huge_pages_peak = 0;
#endif
memset(_memory_heaps, 0, sizeof(_memory_heaps));
atomic_store32_release(&_memory_global_lock, 0);
//Initialize this thread
rpmalloc_thread_initialize();
return 0;
}
//! Finalize the allocator
TRACY_API void
rpmalloc_finalize(void) {
rpmalloc_thread_finalize(1);
//rpmalloc_dump_statistics(stdout);
if (_memory_global_reserve) {
atomic_add32(&_memory_global_reserve_master->remaining_spans, -(int32_t)_memory_global_reserve_count);
_memory_global_reserve_master = 0;
_memory_global_reserve_count = 0;
_memory_global_reserve = 0;
}
atomic_store32_release(&_memory_global_lock, 0);
//Free all thread caches and fully free spans
for (size_t list_idx = 0; list_idx < HEAP_ARRAY_SIZE; ++list_idx) {
heap_t* heap = _memory_heaps[list_idx];
while (heap) {
heap_t* next_heap = heap->next_heap;
heap->finalize = 1;
_rpmalloc_heap_global_finalize(heap);
heap = next_heap;
}
}
#if ENABLE_GLOBAL_CACHE
//Free global caches
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass)
_rpmalloc_global_cache_finalize(&_memory_span_cache[iclass]);
#endif
#if (defined(__APPLE__) || defined(__HAIKU__)) && ENABLE_PRELOAD
pthread_key_delete(_memory_thread_heap);
#endif
#if defined(_WIN32) && (!defined(BUILD_DYNAMIC_LINK) || !BUILD_DYNAMIC_LINK)
FlsFree(fls_key);
fls_key = 0;
#endif
#if ENABLE_STATISTICS
//If you hit these asserts you probably have memory leaks (perhaps global scope data doing dynamic allocations) or double frees in your code
rpmalloc_assert(atomic_load32(&_mapped_pages) == 0, "Memory leak detected");
rpmalloc_assert(atomic_load32(&_mapped_pages_os) == 0, "Memory leak detected");
#endif
_rpmalloc_initialized = 0;
}
//! Initialize thread, assign heap
TRACY_API void
rpmalloc_thread_initialize(void) {
if (!get_thread_heap_raw()) {
heap_t* heap = _rpmalloc_heap_allocate(0);
if (heap) {
_rpmalloc_stat_inc(&_memory_active_heaps);
set_thread_heap(heap);
#if defined(_WIN32) && (!defined(BUILD_DYNAMIC_LINK) || !BUILD_DYNAMIC_LINK)
FlsSetValue(fls_key, heap);
#endif
}
}
}
//! Finalize thread, orphan heap
TRACY_API void
rpmalloc_thread_finalize(int release_caches) {
heap_t* heap = get_thread_heap_raw();
if (heap)
_rpmalloc_heap_release_raw(heap, release_caches);
set_thread_heap(0);
#if defined(_WIN32) && (!defined(BUILD_DYNAMIC_LINK) || !BUILD_DYNAMIC_LINK)
FlsSetValue(fls_key, 0);
#endif
}
int
rpmalloc_is_thread_initialized(void) {
return (get_thread_heap_raw() != 0) ? 1 : 0;
}
const rpmalloc_config_t*
rpmalloc_config(void) {
return &_memory_config;
}
// Extern interface
TRACY_API RPMALLOC_ALLOCATOR void*
rpmalloc(size_t size) {
#if ENABLE_VALIDATE_ARGS
if (size >= MAX_ALLOC_SIZE) {
errno = EINVAL;
return 0;
}
#endif
heap_t* heap = get_thread_heap();
return _rpmalloc_allocate(heap, size);
}
TRACY_API void
rpfree(void* ptr) {
_rpmalloc_deallocate(ptr);
}
extern inline RPMALLOC_ALLOCATOR void*
rpcalloc(size_t num, size_t size) {
size_t total;
#if ENABLE_VALIDATE_ARGS
#if PLATFORM_WINDOWS
int err = SizeTMult(num, size, &total);
if ((err != S_OK) || (total >= MAX_ALLOC_SIZE)) {
errno = EINVAL;
return 0;
}
#else
int err = __builtin_umull_overflow(num, size, &total);
if (err || (total >= MAX_ALLOC_SIZE)) {
errno = EINVAL;
return 0;
}
#endif
#else
total = num * size;
#endif
heap_t* heap = get_thread_heap();
void* block = _rpmalloc_allocate(heap, total);
if (block)
memset(block, 0, total);
return block;
}
TRACY_API RPMALLOC_ALLOCATOR void*
rprealloc(void* ptr, size_t size) {
#if ENABLE_VALIDATE_ARGS
if (size >= MAX_ALLOC_SIZE) {
errno = EINVAL;
return ptr;
}
#endif
heap_t* heap = get_thread_heap();
return _rpmalloc_reallocate(heap, ptr, size, 0, 0);
}
extern RPMALLOC_ALLOCATOR void*
rpaligned_realloc(void* ptr, size_t alignment, size_t size, size_t oldsize,
unsigned int flags) {
#if ENABLE_VALIDATE_ARGS
if ((size + alignment < size) || (alignment > _memory_page_size)) {
errno = EINVAL;
return 0;
}
#endif
heap_t* heap = get_thread_heap();
return _rpmalloc_aligned_reallocate(heap, ptr, alignment, size, oldsize, flags);
}
extern RPMALLOC_ALLOCATOR void*
rpaligned_alloc(size_t alignment, size_t size) {
heap_t* heap = get_thread_heap();
return _rpmalloc_aligned_allocate(heap, alignment, size);
}
extern inline RPMALLOC_ALLOCATOR void*
rpaligned_calloc(size_t alignment, size_t num, size_t size) {
size_t total;
#if ENABLE_VALIDATE_ARGS
#if PLATFORM_WINDOWS
int err = SizeTMult(num, size, &total);
if ((err != S_OK) || (total >= MAX_ALLOC_SIZE)) {
errno = EINVAL;
return 0;
}
#else
int err = __builtin_umull_overflow(num, size, &total);
if (err || (total >= MAX_ALLOC_SIZE)) {
errno = EINVAL;
return 0;
}
#endif
#else
total = num * size;
#endif
void* block = rpaligned_alloc(alignment, total);
if (block)
memset(block, 0, total);
return block;
}
extern inline RPMALLOC_ALLOCATOR void*
rpmemalign(size_t alignment, size_t size) {
return rpaligned_alloc(alignment, size);
}
extern inline int
rpposix_memalign(void **memptr, size_t alignment, size_t size) {
if (memptr)
*memptr = rpaligned_alloc(alignment, size);
else
return EINVAL;
return *memptr ? 0 : ENOMEM;
}
extern inline size_t
rpmalloc_usable_size(void* ptr) {
return (ptr ? _rpmalloc_usable_size(ptr) : 0);
}
extern inline void
rpmalloc_thread_collect(void) {
}
void
rpmalloc_thread_statistics(rpmalloc_thread_statistics_t* stats) {
memset(stats, 0, sizeof(rpmalloc_thread_statistics_t));
heap_t* heap = get_thread_heap_raw();
if (!heap)
return;
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
size_class_t* size_class = _memory_size_class + iclass;
span_t* span = heap->size_class[iclass].partial_span;
while (span) {
size_t free_count = span->list_size;
size_t block_count = size_class->block_count;
if (span->free_list_limit < block_count)
block_count = span->free_list_limit;
free_count += (block_count - span->used_count);
stats->sizecache = free_count * size_class->block_size;
span = span->next;
}
}
#if ENABLE_THREAD_CACHE
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
span_cache_t* span_cache;
if (!iclass)
span_cache = &heap->span_cache;
else
span_cache = (span_cache_t*)(heap->span_large_cache + (iclass - 1));
stats->spancache = span_cache->count * (iclass + 1) * _memory_span_size;
}
#endif
span_t* deferred = (span_t*)atomic_load_ptr(&heap->span_free_deferred);
while (deferred) {
if (deferred->size_class != SIZE_CLASS_HUGE)
stats->spancache = (size_t)deferred->span_count * _memory_span_size;
deferred = (span_t*)deferred->free_list;
}
#if ENABLE_STATISTICS
stats->thread_to_global = (size_t)atomic_load64(&heap->thread_to_global);
stats->global_to_thread = (size_t)atomic_load64(&heap->global_to_thread);
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
stats->span_use[iclass].current = (size_t)atomic_load32(&heap->span_use[iclass].current);
stats->span_use[iclass].peak = (size_t)atomic_load32(&heap->span_use[iclass].high);
stats->span_use[iclass].to_global = (size_t)atomic_load32(&heap->span_use[iclass].spans_to_global);
stats->span_use[iclass].from_global = (size_t)atomic_load32(&heap->span_use[iclass].spans_from_global);
stats->span_use[iclass].to_cache = (size_t)atomic_load32(&heap->span_use[iclass].spans_to_cache);
stats->span_use[iclass].from_cache = (size_t)atomic_load32(&heap->span_use[iclass].spans_from_cache);
stats->span_use[iclass].to_reserved = (size_t)atomic_load32(&heap->span_use[iclass].spans_to_reserved);
stats->span_use[iclass].from_reserved = (size_t)atomic_load32(&heap->span_use[iclass].spans_from_reserved);
stats->span_use[iclass].map_calls = (size_t)atomic_load32(&heap->span_use[iclass].spans_map_calls);
}
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
stats->size_use[iclass].alloc_current = (size_t)atomic_load32(&heap->size_class_use[iclass].alloc_current);
stats->size_use[iclass].alloc_peak = (size_t)heap->size_class_use[iclass].alloc_peak;
stats->size_use[iclass].alloc_total = (size_t)atomic_load32(&heap->size_class_use[iclass].alloc_total);
stats->size_use[iclass].free_total = (size_t)atomic_load32(&heap->size_class_use[iclass].free_total);
stats->size_use[iclass].spans_to_cache = (size_t)atomic_load32(&heap->size_class_use[iclass].spans_to_cache);
stats->size_use[iclass].spans_from_cache = (size_t)atomic_load32(&heap->size_class_use[iclass].spans_from_cache);
stats->size_use[iclass].spans_from_reserved = (size_t)atomic_load32(&heap->size_class_use[iclass].spans_from_reserved);
stats->size_use[iclass].map_calls = (size_t)atomic_load32(&heap->size_class_use[iclass].spans_map_calls);
}
#endif
}
void
rpmalloc_global_statistics(rpmalloc_global_statistics_t* stats) {
memset(stats, 0, sizeof(rpmalloc_global_statistics_t));
#if ENABLE_STATISTICS
stats->mapped = (size_t)atomic_load32(&_mapped_pages) * _memory_page_size;
stats->mapped_peak = (size_t)_mapped_pages_peak * _memory_page_size;
stats->mapped_total = (size_t)atomic_load32(&_mapped_total) * _memory_page_size;
stats->unmapped_total = (size_t)atomic_load32(&_unmapped_total) * _memory_page_size;
stats->huge_alloc = (size_t)atomic_load32(&_huge_pages_current) * _memory_page_size;
stats->huge_alloc_peak = (size_t)_huge_pages_peak * _memory_page_size;
#endif
#if ENABLE_GLOBAL_CACHE
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass)
stats->cached += _memory_span_cache[iclass].count * (iclass + 1) * _memory_span_size;
#endif
}
#if ENABLE_STATISTICS
static void
_memory_heap_dump_statistics(heap_t* heap, void* file) {
fprintf(file, "Heap %d stats:\n", heap->id);
fprintf(file, "Class CurAlloc PeakAlloc TotAlloc TotFree BlkSize BlkCount SpansCur SpansPeak PeakAllocMiB ToCacheMiB FromCacheMiB FromReserveMiB MmapCalls\n");
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
if (!atomic_load32(&heap->size_class_use[iclass].alloc_total))
continue;
fprintf(file, "%3u: %10u %10u %10u %10u %8u %8u %8d %9d %13zu %11zu %12zu %14zu %9u\n", (uint32_t)iclass,
atomic_load32(&heap->size_class_use[iclass].alloc_current),
heap->size_class_use[iclass].alloc_peak,
atomic_load32(&heap->size_class_use[iclass].alloc_total),
atomic_load32(&heap->size_class_use[iclass].free_total),
_memory_size_class[iclass].block_size,
_memory_size_class[iclass].block_count,
atomic_load32(&heap->size_class_use[iclass].spans_current),
heap->size_class_use[iclass].spans_peak,
((size_t)heap->size_class_use[iclass].alloc_peak * (size_t)_memory_size_class[iclass].block_size) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->size_class_use[iclass].spans_to_cache) * _memory_span_size) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->size_class_use[iclass].spans_from_cache) * _memory_span_size) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->size_class_use[iclass].spans_from_reserved) * _memory_span_size) / (size_t)(1024 * 1024),
atomic_load32(&heap->size_class_use[iclass].spans_map_calls));
}
fprintf(file, "Spans Current Peak Deferred PeakMiB Cached ToCacheMiB FromCacheMiB ToReserveMiB FromReserveMiB ToGlobalMiB FromGlobalMiB MmapCalls\n");
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
if (!atomic_load32(&heap->span_use[iclass].high) && !atomic_load32(&heap->span_use[iclass].spans_map_calls))
continue;
fprintf(file, "%4u: %8d %8u %8u %8zu %7u %11zu %12zu %12zu %14zu %11zu %13zu %10u\n", (uint32_t)(iclass + 1),
atomic_load32(&heap->span_use[iclass].current),
atomic_load32(&heap->span_use[iclass].high),
atomic_load32(&heap->span_use[iclass].spans_deferred),
((size_t)atomic_load32(&heap->span_use[iclass].high) * (size_t)_memory_span_size * (iclass + 1)) / (size_t)(1024 * 1024),
#if ENABLE_THREAD_CACHE
(unsigned int)(!iclass ? heap->span_cache.count : heap->span_large_cache[iclass - 1].count),
((size_t)atomic_load32(&heap->span_use[iclass].spans_to_cache) * (iclass + 1) * _memory_span_size) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->span_use[iclass].spans_from_cache) * (iclass + 1) * _memory_span_size) / (size_t)(1024 * 1024),
#else
0, (size_t)0, (size_t)0,
#endif
((size_t)atomic_load32(&heap->span_use[iclass].spans_to_reserved) * (iclass + 1) * _memory_span_size) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->span_use[iclass].spans_from_reserved) * (iclass + 1) * _memory_span_size) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->span_use[iclass].spans_to_global) * (size_t)_memory_span_size * (iclass + 1)) / (size_t)(1024 * 1024),
((size_t)atomic_load32(&heap->span_use[iclass].spans_from_global) * (size_t)_memory_span_size * (iclass + 1)) / (size_t)(1024 * 1024),
atomic_load32(&heap->span_use[iclass].spans_map_calls));
}
fprintf(file, "Full spans: %zu\n", heap->full_span_count);
fprintf(file, "ThreadToGlobalMiB GlobalToThreadMiB\n");
fprintf(file, "%17zu %17zu\n", (size_t)atomic_load64(&heap->thread_to_global) / (size_t)(1024 * 1024), (size_t)atomic_load64(&heap->global_to_thread) / (size_t)(1024 * 1024));
}
#endif
void
rpmalloc_dump_statistics(void* file) {
#if ENABLE_STATISTICS
for (size_t list_idx = 0; list_idx < HEAP_ARRAY_SIZE; ++list_idx) {
heap_t* heap = _memory_heaps[list_idx];
while (heap) {
int need_dump = 0;
for (size_t iclass = 0; !need_dump && (iclass < SIZE_CLASS_COUNT); ++iclass) {
if (!atomic_load32(&heap->size_class_use[iclass].alloc_total)) {
rpmalloc_assert(!atomic_load32(&heap->size_class_use[iclass].free_total), "Heap statistics counter mismatch");
rpmalloc_assert(!atomic_load32(&heap->size_class_use[iclass].spans_map_calls), "Heap statistics counter mismatch");
continue;
}
need_dump = 1;
}
for (size_t iclass = 0; !need_dump && (iclass < LARGE_CLASS_COUNT); ++iclass) {
if (!atomic_load32(&heap->span_use[iclass].high) && !atomic_load32(&heap->span_use[iclass].spans_map_calls))
continue;
need_dump = 1;
}
if (need_dump)
_memory_heap_dump_statistics(heap, file);
heap = heap->next_heap;
}
}
fprintf(file, "Global stats:\n");
size_t huge_current = (size_t)atomic_load32(&_huge_pages_current) * _memory_page_size;
size_t huge_peak = (size_t)_huge_pages_peak * _memory_page_size;
fprintf(file, "HugeCurrentMiB HugePeakMiB\n");
fprintf(file, "%14zu %11zu\n", huge_current / (size_t)(1024 * 1024), huge_peak / (size_t)(1024 * 1024));
fprintf(file, "GlobalCacheMiB\n");
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
global_cache_t* cache = _memory_span_cache + iclass;
size_t global_cache = (size_t)cache->count * iclass * _memory_span_size;
size_t global_overflow_cache = 0;
span_t* span = cache->overflow;
while (span) {
global_overflow_cache += iclass * _memory_span_size;
span = span->next;
}
if (global_cache || global_overflow_cache || cache->insert_count || cache->extract_count)
fprintf(file, "%4zu: %8zuMiB (%8zuMiB overflow) %14zu insert %14zu extract\n", iclass + 1, global_cache / (size_t)(1024 * 1024), global_overflow_cache / (size_t)(1024 * 1024), cache->insert_count, cache->extract_count);
}
size_t mapped = (size_t)atomic_load32(&_mapped_pages) * _memory_page_size;
size_t mapped_os = (size_t)atomic_load32(&_mapped_pages_os) * _memory_page_size;
size_t mapped_peak = (size_t)_mapped_pages_peak * _memory_page_size;
size_t mapped_total = (size_t)atomic_load32(&_mapped_total) * _memory_page_size;
size_t unmapped_total = (size_t)atomic_load32(&_unmapped_total) * _memory_page_size;
fprintf(file, "MappedMiB MappedOSMiB MappedPeakMiB MappedTotalMiB UnmappedTotalMiB\n");
fprintf(file, "%9zu %11zu %13zu %14zu %16zu\n",
mapped / (size_t)(1024 * 1024),
mapped_os / (size_t)(1024 * 1024),
mapped_peak / (size_t)(1024 * 1024),
mapped_total / (size_t)(1024 * 1024),
unmapped_total / (size_t)(1024 * 1024));
fprintf(file, "\n");
#if 0
int64_t allocated = atomic_load64(&_allocation_counter);
int64_t deallocated = atomic_load64(&_deallocation_counter);
fprintf(file, "Allocation count: %lli\n", allocated);
fprintf(file, "Deallocation count: %lli\n", deallocated);
fprintf(file, "Current allocations: %lli\n", (allocated - deallocated));
fprintf(file, "Master spans: %d\n", atomic_load32(&_master_spans));
fprintf(file, "Dangling master spans: %d\n", atomic_load32(&_unmapped_master_spans));
#endif
#endif
(void)sizeof(file);
}
#if RPMALLOC_FIRST_CLASS_HEAPS
extern inline rpmalloc_heap_t*
rpmalloc_heap_acquire(void) {
// Must be a pristine heap from newly mapped memory pages, or else memory blocks
// could already be allocated from the heap which would (wrongly) be released when
// heap is cleared with rpmalloc_heap_free_all(). Also heaps guaranteed to be
// pristine from the dedicated orphan list can be used.
heap_t* heap = _rpmalloc_heap_allocate(1);
heap->owner_thread = 0;
_rpmalloc_stat_inc(&_memory_active_heaps);
return heap;
}
extern inline void
rpmalloc_heap_release(rpmalloc_heap_t* heap) {
if (heap)
_rpmalloc_heap_release(heap, 1, 1);
}
extern inline RPMALLOC_ALLOCATOR void*
rpmalloc_heap_alloc(rpmalloc_heap_t* heap, size_t size) {
#if ENABLE_VALIDATE_ARGS
if (size >= MAX_ALLOC_SIZE) {
errno = EINVAL;
return 0;
}
#endif
return _rpmalloc_allocate(heap, size);
}
extern inline RPMALLOC_ALLOCATOR void*
rpmalloc_heap_aligned_alloc(rpmalloc_heap_t* heap, size_t alignment, size_t size) {
#if ENABLE_VALIDATE_ARGS
if (size >= MAX_ALLOC_SIZE) {
errno = EINVAL;
return 0;
}
#endif
return _rpmalloc_aligned_allocate(heap, alignment, size);
}
extern inline RPMALLOC_ALLOCATOR void*
rpmalloc_heap_calloc(rpmalloc_heap_t* heap, size_t num, size_t size) {
return rpmalloc_heap_aligned_calloc(heap, 0, num, size);
}
extern inline RPMALLOC_ALLOCATOR void*
rpmalloc_heap_aligned_calloc(rpmalloc_heap_t* heap, size_t alignment, size_t num, size_t size) {
size_t total;
#if ENABLE_VALIDATE_ARGS
#if PLATFORM_WINDOWS
int err = SizeTMult(num, size, &total);
if ((err != S_OK) || (total >= MAX_ALLOC_SIZE)) {
errno = EINVAL;
return 0;
}
#else
int err = __builtin_umull_overflow(num, size, &total);
if (err || (total >= MAX_ALLOC_SIZE)) {
errno = EINVAL;
return 0;
}
#endif
#else
total = num * size;
#endif
void* block = _rpmalloc_aligned_allocate(heap, alignment, total);
if (block)
memset(block, 0, total);
return block;
}
extern inline RPMALLOC_ALLOCATOR void*
rpmalloc_heap_realloc(rpmalloc_heap_t* heap, void* ptr, size_t size, unsigned int flags) {
#if ENABLE_VALIDATE_ARGS
if (size >= MAX_ALLOC_SIZE) {
errno = EINVAL;
return ptr;
}
#endif
return _rpmalloc_reallocate(heap, ptr, size, 0, flags);
}
extern inline RPMALLOC_ALLOCATOR void*
rpmalloc_heap_aligned_realloc(rpmalloc_heap_t* heap, void* ptr, size_t alignment, size_t size, unsigned int flags) {
#if ENABLE_VALIDATE_ARGS
if ((size + alignment < size) || (alignment > _memory_page_size)) {
errno = EINVAL;
return 0;
}
#endif
return _rpmalloc_aligned_reallocate(heap, ptr, alignment, size, 0, flags);
}
extern inline void
rpmalloc_heap_free(rpmalloc_heap_t* heap, void* ptr) {
(void)sizeof(heap);
_rpmalloc_deallocate(ptr);
}
extern inline void
rpmalloc_heap_free_all(rpmalloc_heap_t* heap) {
span_t* span;
span_t* next_span;
_rpmalloc_heap_cache_adopt_deferred(heap, 0);
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
span = heap->size_class[iclass].partial_span;
while (span) {
next_span = span->next;
_rpmalloc_heap_cache_insert(heap, span);
span = next_span;
}
heap->size_class[iclass].partial_span = 0;
span = heap->full_span[iclass];
while (span) {
next_span = span->next;
_rpmalloc_heap_cache_insert(heap, span);
span = next_span;
}
}
memset(heap->size_class, 0, sizeof(heap->size_class));
memset(heap->full_span, 0, sizeof(heap->full_span));
span = heap->large_huge_span;
while (span) {
next_span = span->next;
if (UNEXPECTED(span->size_class == SIZE_CLASS_HUGE))
_rpmalloc_deallocate_huge(span);
else
_rpmalloc_heap_cache_insert(heap, span);
span = next_span;
}
heap->large_huge_span = 0;
heap->full_span_count = 0;
#if ENABLE_THREAD_CACHE
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
span_cache_t* span_cache;
if (!iclass)
span_cache = &heap->span_cache;
else
span_cache = (span_cache_t*)(heap->span_large_cache + (iclass - 1));
if (!span_cache->count)
continue;
#if ENABLE_GLOBAL_CACHE
_rpmalloc_stat_add64(&heap->thread_to_global, span_cache->count * (iclass + 1) * _memory_span_size);
_rpmalloc_stat_add(&heap->span_use[iclass].spans_to_global, span_cache->count);
_rpmalloc_global_cache_insert_spans(span_cache->span, iclass + 1, span_cache->count);
#else
for (size_t ispan = 0; ispan < span_cache->count; ++ispan)
_rpmalloc_span_unmap(span_cache->span[ispan]);
#endif
span_cache->count = 0;
}
#endif
#if ENABLE_STATISTICS
for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
atomic_store32(&heap->size_class_use[iclass].alloc_current, 0);
atomic_store32(&heap->size_class_use[iclass].spans_current, 0);
}
for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
atomic_store32(&heap->span_use[iclass].current, 0);
}
#endif
}
extern inline void
rpmalloc_heap_thread_set_current(rpmalloc_heap_t* heap) {
heap_t* prev_heap = get_thread_heap_raw();
if (prev_heap != heap) {
set_thread_heap(heap);
if (prev_heap)
rpmalloc_heap_release(prev_heap);
}
}
#endif
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyCallstack.h | #ifndef __TRACYCALLSTACK_H__
#define __TRACYCALLSTACK_H__
#ifndef TRACY_NO_CALLSTACK
# if !defined _WIN32
# include <sys/param.h>
# endif
# if defined _WIN32
# include "../common/TracyUwp.hpp"
# ifndef TRACY_UWP
# define TRACY_HAS_CALLSTACK 1
# endif
# elif defined __ANDROID__
# if !defined __arm__ || __ANDROID_API__ >= 21
# define TRACY_HAS_CALLSTACK 2
# else
# define TRACY_HAS_CALLSTACK 5
# endif
# elif defined __linux
# if defined _GNU_SOURCE && defined __GLIBC__
# define TRACY_HAS_CALLSTACK 3
# else
# define TRACY_HAS_CALLSTACK 2
# endif
# elif defined __APPLE__
# define TRACY_HAS_CALLSTACK 4
# elif defined BSD
# define TRACY_HAS_CALLSTACK 6
# endif
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracySysTime.cpp | #include "TracySysTime.hpp"
#ifdef TRACY_HAS_SYSTIME
# if defined _WIN32
# include <windows.h>
# elif defined __linux__
# include <stdio.h>
# include <inttypes.h>
# elif defined __APPLE__
# include <mach/mach_host.h>
# include <mach/host_info.h>
# elif defined BSD
# include <sys/types.h>
# include <sys/sysctl.h>
# endif
namespace tracy
{
# if defined _WIN32
static inline uint64_t ConvertTime( const FILETIME& t )
{
return ( uint64_t( t.dwHighDateTime ) << 32 ) | uint64_t( t.dwLowDateTime );
}
void SysTime::ReadTimes()
{
FILETIME idleTime;
FILETIME kernelTime;
FILETIME userTime;
GetSystemTimes( &idleTime, &kernelTime, &userTime );
idle = ConvertTime( idleTime );
const auto kernel = ConvertTime( kernelTime );
const auto user = ConvertTime( userTime );
used = kernel + user;
}
# elif defined __linux__
void SysTime::ReadTimes()
{
uint64_t user, nice, system;
FILE* f = fopen( "/proc/stat", "r" );
if( f )
{
int read = fscanf( f, "cpu %" PRIu64 " %" PRIu64 " %" PRIu64" %" PRIu64, &user, &nice, &system, &idle );
fclose( f );
if (read == 4)
{
used = user + nice + system;
}
}
}
# elif defined __APPLE__
void SysTime::ReadTimes()
{
host_cpu_load_info_data_t info;
mach_msg_type_number_t cnt = HOST_CPU_LOAD_INFO_COUNT;
host_statistics( mach_host_self(), HOST_CPU_LOAD_INFO, reinterpret_cast<host_info_t>( &info ), &cnt );
used = info.cpu_ticks[CPU_STATE_USER] + info.cpu_ticks[CPU_STATE_NICE] + info.cpu_ticks[CPU_STATE_SYSTEM];
idle = info.cpu_ticks[CPU_STATE_IDLE];
}
# elif defined BSD
void SysTime::ReadTimes()
{
u_long data[5];
size_t sz = sizeof( data );
sysctlbyname( "kern.cp_time", &data, &sz, nullptr, 0 );
used = data[0] + data[1] + data[2] + data[3];
idle = data[4];
}
#endif
SysTime::SysTime()
{
ReadTimes();
}
float SysTime::Get()
{
const auto oldUsed = used;
const auto oldIdle = idle;
ReadTimes();
const auto diffIdle = idle - oldIdle;
const auto diffUsed = used - oldUsed;
#if defined _WIN32
return diffUsed == 0 ? -1 : ( diffUsed - diffIdle ) * 100.f / diffUsed;
#elif defined __linux__ || defined __APPLE__ || defined BSD
const auto total = diffUsed + diffIdle;
return total == 0 ? -1 : diffUsed * 100.f / total;
#endif
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyLock.hpp | #ifndef __TRACYLOCK_HPP__
#define __TRACYLOCK_HPP__
#include <atomic>
#include <limits>
#include "../common/TracySystem.hpp"
#include "../common/TracyAlign.hpp"
#include "TracyProfiler.hpp"
namespace tracy
{
class LockableCtx
{
public:
tracy_force_inline LockableCtx( const SourceLocationData* srcloc )
: m_id( GetLockCounter().fetch_add( 1, std::memory_order_relaxed ) )
#ifdef TRACY_ON_DEMAND
, m_lockCount( 0 )
, m_active( false )
#endif
{
assert( m_id != std::numeric_limits<uint32_t>::max() );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockAnnounce );
MemWrite( &item->lockAnnounce.id, m_id );
MemWrite( &item->lockAnnounce.time, Profiler::GetTime() );
MemWrite( &item->lockAnnounce.lckloc, (uint64_t)srcloc );
MemWrite( &item->lockAnnounce.type, LockType::Lockable );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
LockableCtx( const LockableCtx& ) = delete;
LockableCtx& operator=( const LockableCtx& ) = delete;
tracy_force_inline ~LockableCtx()
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockTerminate );
MemWrite( &item->lockTerminate.id, m_id );
MemWrite( &item->lockTerminate.time, Profiler::GetTime() );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
tracy_force_inline bool BeforeLock()
{
#ifdef TRACY_ON_DEMAND
bool queue = false;
const auto locks = m_lockCount.fetch_add( 1, std::memory_order_relaxed );
const auto active = m_active.load( std::memory_order_relaxed );
if( locks == 0 || active )
{
const bool connected = GetProfiler().IsConnected();
if( active != connected ) m_active.store( connected, std::memory_order_relaxed );
if( connected ) queue = true;
}
if( !queue ) return false;
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockWait );
MemWrite( &item->lockWait.thread, GetThreadHandle() );
MemWrite( &item->lockWait.id, m_id );
MemWrite( &item->lockWait.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
return true;
}
tracy_force_inline void AfterLock()
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockObtain );
MemWrite( &item->lockObtain.thread, GetThreadHandle() );
MemWrite( &item->lockObtain.id, m_id );
MemWrite( &item->lockObtain.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
tracy_force_inline void AfterUnlock()
{
#ifdef TRACY_ON_DEMAND
m_lockCount.fetch_sub( 1, std::memory_order_relaxed );
if( !m_active.load( std::memory_order_relaxed ) ) return;
if( !GetProfiler().IsConnected() )
{
m_active.store( false, std::memory_order_relaxed );
return;
}
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockRelease );
MemWrite( &item->lockRelease.id, m_id );
MemWrite( &item->lockRelease.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
tracy_force_inline void AfterTryLock( bool acquired )
{
#ifdef TRACY_ON_DEMAND
if( !acquired ) return;
bool queue = false;
const auto locks = m_lockCount.fetch_add( 1, std::memory_order_relaxed );
const auto active = m_active.load( std::memory_order_relaxed );
if( locks == 0 || active )
{
const bool connected = GetProfiler().IsConnected();
if( active != connected ) m_active.store( connected, std::memory_order_relaxed );
if( connected ) queue = true;
}
if( !queue ) return;
#endif
if( acquired )
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockObtain );
MemWrite( &item->lockObtain.thread, GetThreadHandle() );
MemWrite( &item->lockObtain.id, m_id );
MemWrite( &item->lockObtain.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
}
tracy_force_inline void Mark( const SourceLocationData* srcloc )
{
#ifdef TRACY_ON_DEMAND
const auto active = m_active.load( std::memory_order_relaxed );
if( !active ) return;
const auto connected = GetProfiler().IsConnected();
if( !connected )
{
if( active ) m_active.store( false, std::memory_order_relaxed );
return;
}
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockMark );
MemWrite( &item->lockMark.thread, GetThreadHandle() );
MemWrite( &item->lockMark.id, m_id );
MemWrite( &item->lockMark.srcloc, (uint64_t)srcloc );
Profiler::QueueSerialFinish();
}
tracy_force_inline void CustomName( const char* name, size_t size )
{
assert( size < std::numeric_limits<uint16_t>::max() );
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, name, size );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockName );
MemWrite( &item->lockNameFat.id, m_id );
MemWrite( &item->lockNameFat.name, (uint64_t)ptr );
MemWrite( &item->lockNameFat.size, (uint16_t)size );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
private:
uint32_t m_id;
#ifdef TRACY_ON_DEMAND
std::atomic<uint32_t> m_lockCount;
std::atomic<bool> m_active;
#endif
};
template<class T>
class Lockable
{
public:
tracy_force_inline Lockable( const SourceLocationData* srcloc )
: m_ctx( srcloc )
{
}
Lockable( const Lockable& ) = delete;
Lockable& operator=( const Lockable& ) = delete;
tracy_force_inline void lock()
{
const auto runAfter = m_ctx.BeforeLock();
m_lockable.lock();
if( runAfter ) m_ctx.AfterLock();
}
tracy_force_inline void unlock()
{
m_lockable.unlock();
m_ctx.AfterUnlock();
}
tracy_force_inline bool try_lock()
{
const auto acquired = m_lockable.try_lock();
m_ctx.AfterTryLock( acquired );
return acquired;
}
tracy_force_inline void Mark( const SourceLocationData* srcloc )
{
m_ctx.Mark( srcloc );
}
tracy_force_inline void CustomName( const char* name, size_t size )
{
m_ctx.CustomName( name, size );
}
private:
T m_lockable;
LockableCtx m_ctx;
};
class SharedLockableCtx
{
public:
tracy_force_inline SharedLockableCtx( const SourceLocationData* srcloc )
: m_id( GetLockCounter().fetch_add( 1, std::memory_order_relaxed ) )
#ifdef TRACY_ON_DEMAND
, m_lockCount( 0 )
, m_active( false )
#endif
{
assert( m_id != std::numeric_limits<uint32_t>::max() );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockAnnounce );
MemWrite( &item->lockAnnounce.id, m_id );
MemWrite( &item->lockAnnounce.time, Profiler::GetTime() );
MemWrite( &item->lockAnnounce.lckloc, (uint64_t)srcloc );
MemWrite( &item->lockAnnounce.type, LockType::SharedLockable );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
SharedLockableCtx( const SharedLockableCtx& ) = delete;
SharedLockableCtx& operator=( const SharedLockableCtx& ) = delete;
tracy_force_inline ~SharedLockableCtx()
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockTerminate );
MemWrite( &item->lockTerminate.id, m_id );
MemWrite( &item->lockTerminate.time, Profiler::GetTime() );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
tracy_force_inline bool BeforeLock()
{
#ifdef TRACY_ON_DEMAND
bool queue = false;
const auto locks = m_lockCount.fetch_add( 1, std::memory_order_relaxed );
const auto active = m_active.load( std::memory_order_relaxed );
if( locks == 0 || active )
{
const bool connected = GetProfiler().IsConnected();
if( active != connected ) m_active.store( connected, std::memory_order_relaxed );
if( connected ) queue = true;
}
if( !queue ) return false;
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockWait );
MemWrite( &item->lockWait.thread, GetThreadHandle() );
MemWrite( &item->lockWait.id, m_id );
MemWrite( &item->lockWait.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
return true;
}
tracy_force_inline void AfterLock()
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockObtain );
MemWrite( &item->lockObtain.thread, GetThreadHandle() );
MemWrite( &item->lockObtain.id, m_id );
MemWrite( &item->lockObtain.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
tracy_force_inline void AfterUnlock()
{
#ifdef TRACY_ON_DEMAND
m_lockCount.fetch_sub( 1, std::memory_order_relaxed );
if( !m_active.load( std::memory_order_relaxed ) ) return;
if( !GetProfiler().IsConnected() )
{
m_active.store( false, std::memory_order_relaxed );
return;
}
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockRelease );
MemWrite( &item->lockRelease.id, m_id );
MemWrite( &item->lockRelease.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
tracy_force_inline void AfterTryLock( bool acquired )
{
#ifdef TRACY_ON_DEMAND
if( !acquired ) return;
bool queue = false;
const auto locks = m_lockCount.fetch_add( 1, std::memory_order_relaxed );
const auto active = m_active.load( std::memory_order_relaxed );
if( locks == 0 || active )
{
const bool connected = GetProfiler().IsConnected();
if( active != connected ) m_active.store( connected, std::memory_order_relaxed );
if( connected ) queue = true;
}
if( !queue ) return;
#endif
if( acquired )
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockObtain );
MemWrite( &item->lockObtain.thread, GetThreadHandle() );
MemWrite( &item->lockObtain.id, m_id );
MemWrite( &item->lockObtain.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
}
tracy_force_inline bool BeforeLockShared()
{
#ifdef TRACY_ON_DEMAND
bool queue = false;
const auto locks = m_lockCount.fetch_add( 1, std::memory_order_relaxed );
const auto active = m_active.load( std::memory_order_relaxed );
if( locks == 0 || active )
{
const bool connected = GetProfiler().IsConnected();
if( active != connected ) m_active.store( connected, std::memory_order_relaxed );
if( connected ) queue = true;
}
if( !queue ) return false;
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockSharedWait );
MemWrite( &item->lockWait.thread, GetThreadHandle() );
MemWrite( &item->lockWait.id, m_id );
MemWrite( &item->lockWait.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
return true;
}
tracy_force_inline void AfterLockShared()
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockSharedObtain );
MemWrite( &item->lockObtain.thread, GetThreadHandle() );
MemWrite( &item->lockObtain.id, m_id );
MemWrite( &item->lockObtain.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
tracy_force_inline void AfterUnlockShared()
{
#ifdef TRACY_ON_DEMAND
m_lockCount.fetch_sub( 1, std::memory_order_relaxed );
if( !m_active.load( std::memory_order_relaxed ) ) return;
if( !GetProfiler().IsConnected() )
{
m_active.store( false, std::memory_order_relaxed );
return;
}
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockSharedRelease );
MemWrite( &item->lockReleaseShared.thread, GetThreadHandle() );
MemWrite( &item->lockReleaseShared.id, m_id );
MemWrite( &item->lockReleaseShared.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
tracy_force_inline void AfterTryLockShared( bool acquired )
{
#ifdef TRACY_ON_DEMAND
if( !acquired ) return;
bool queue = false;
const auto locks = m_lockCount.fetch_add( 1, std::memory_order_relaxed );
const auto active = m_active.load( std::memory_order_relaxed );
if( locks == 0 || active )
{
const bool connected = GetProfiler().IsConnected();
if( active != connected ) m_active.store( connected, std::memory_order_relaxed );
if( connected ) queue = true;
}
if( !queue ) return;
#endif
if( acquired )
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockSharedObtain );
MemWrite( &item->lockObtain.thread, GetThreadHandle() );
MemWrite( &item->lockObtain.id, m_id );
MemWrite( &item->lockObtain.time, Profiler::GetTime() );
Profiler::QueueSerialFinish();
}
}
tracy_force_inline void Mark( const SourceLocationData* srcloc )
{
#ifdef TRACY_ON_DEMAND
const auto active = m_active.load( std::memory_order_relaxed );
if( !active ) return;
const auto connected = GetProfiler().IsConnected();
if( !connected )
{
if( active ) m_active.store( false, std::memory_order_relaxed );
return;
}
#endif
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockMark );
MemWrite( &item->lockMark.thread, GetThreadHandle() );
MemWrite( &item->lockMark.id, m_id );
MemWrite( &item->lockMark.srcloc, (uint64_t)srcloc );
Profiler::QueueSerialFinish();
}
tracy_force_inline void CustomName( const char* name, size_t size )
{
assert( size < std::numeric_limits<uint16_t>::max() );
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, name, size );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::LockName );
MemWrite( &item->lockNameFat.id, m_id );
MemWrite( &item->lockNameFat.name, (uint64_t)ptr );
MemWrite( &item->lockNameFat.size, (uint16_t)size );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
private:
uint32_t m_id;
#ifdef TRACY_ON_DEMAND
std::atomic<uint32_t> m_lockCount;
std::atomic<bool> m_active;
#endif
};
template<class T>
class SharedLockable
{
public:
tracy_force_inline SharedLockable( const SourceLocationData* srcloc )
: m_ctx( srcloc )
{
}
SharedLockable( const SharedLockable& ) = delete;
SharedLockable& operator=( const SharedLockable& ) = delete;
tracy_force_inline void lock()
{
const auto runAfter = m_ctx.BeforeLock();
m_lockable.lock();
if( runAfter ) m_ctx.AfterLock();
}
tracy_force_inline void unlock()
{
m_lockable.unlock();
m_ctx.AfterUnlock();
}
tracy_force_inline bool try_lock()
{
const auto acquired = m_lockable.try_lock();
m_ctx.AfterTryLock( acquired );
return acquired;
}
tracy_force_inline void lock_shared()
{
const auto runAfter = m_ctx.BeforeLockShared();
m_lockable.lock_shared();
if( runAfter ) m_ctx.AfterLockShared();
}
tracy_force_inline void unlock_shared()
{
m_lockable.unlock_shared();
m_ctx.AfterUnlockShared();
}
tracy_force_inline bool try_lock_shared()
{
const auto acquired = m_lockable.try_lock_shared();
m_ctx.AfterTryLockShared( acquired );
return acquired;
}
tracy_force_inline void Mark( const SourceLocationData* srcloc )
{
m_ctx.Mark( srcloc );
}
tracy_force_inline void CustomName( const char* name, size_t size )
{
m_ctx.CustomName( name, size );
}
private:
T m_lockable;
SharedLockableCtx m_ctx;
};
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyFastVector.hpp | #ifndef __TRACYFASTVECTOR_HPP__
#define __TRACYFASTVECTOR_HPP__
#include <assert.h>
#include <stddef.h>
#include "../common/TracyAlloc.hpp"
#include "../common/TracyForceInline.hpp"
namespace tracy
{
template<typename T>
class FastVector
{
public:
using iterator = T*;
using const_iterator = const T*;
FastVector( size_t capacity )
: m_ptr( (T*)tracy_malloc( sizeof( T ) * capacity ) )
, m_write( m_ptr )
, m_end( m_ptr + capacity )
{
assert( capacity != 0 );
}
FastVector( const FastVector& ) = delete;
FastVector( FastVector&& ) = delete;
~FastVector()
{
tracy_free( m_ptr );
}
FastVector& operator=( const FastVector& ) = delete;
FastVector& operator=( FastVector&& ) = delete;
bool empty() const { return m_ptr == m_write; }
size_t size() const { return m_write - m_ptr; }
T* data() { return m_ptr; }
const T* data() const { return m_ptr; };
T* begin() { return m_ptr; }
const T* begin() const { return m_ptr; }
T* end() { return m_write; }
const T* end() const { return m_write; }
T& front() { assert( !empty() ); return m_ptr[0]; }
const T& front() const { assert( !empty() ); return m_ptr[0]; }
T& back() { assert( !empty() ); return m_write[-1]; }
const T& back() const { assert( !empty() ); return m_write[-1]; }
T& operator[]( size_t idx ) { return m_ptr[idx]; }
const T& operator[]( size_t idx ) const { return m_ptr[idx]; }
T* push_next()
{
if( m_write == m_end ) AllocMore();
return m_write++;
}
T* prepare_next()
{
if( m_write == m_end ) AllocMore();
return m_write;
}
void commit_next()
{
m_write++;
}
void clear()
{
m_write = m_ptr;
}
void swap( FastVector& vec )
{
const auto ptr1 = m_ptr;
const auto ptr2 = vec.m_ptr;
const auto write1 = m_write;
const auto write2 = vec.m_write;
const auto end1 = m_end;
const auto end2 = vec.m_end;
m_ptr = ptr2;
vec.m_ptr = ptr1;
m_write = write2;
vec.m_write = write1;
m_end = end2;
vec.m_end = end1;
}
private:
tracy_no_inline void AllocMore()
{
const auto cap = size_t( m_end - m_ptr ) * 2;
const auto size = size_t( m_write - m_ptr );
T* ptr = (T*)tracy_malloc( sizeof( T ) * cap );
memcpy( ptr, m_ptr, size * sizeof( T ) );
tracy_free_fast( m_ptr );
m_ptr = ptr;
m_write = m_ptr + size;
m_end = m_ptr + cap;
}
T* m_ptr;
T* m_write;
T* m_end;
};
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyArmCpuTable.hpp | namespace tracy
{
#if defined __linux__ && defined __ARM_ARCH
static const char* DecodeArmImplementer( uint32_t v )
{
static char buf[16];
switch( v )
{
case 0x41: return "ARM";
case 0x42: return "Broadcom";
case 0x43: return "Cavium";
case 0x44: return "DEC";
case 0x46: return "Fujitsu";
case 0x48: return "HiSilicon";
case 0x49: return "Infineon";
case 0x4d: return "Motorola";
case 0x4e: return "Nvidia";
case 0x50: return "Applied Micro";
case 0x51: return "Qualcomm";
case 0x53: return "Samsung";
case 0x54: return "Texas Instruments";
case 0x56: return "Marvell";
case 0x61: return "Apple";
case 0x66: return "Faraday";
case 0x68: return "HXT";
case 0x69: return "Intel";
case 0xc0: return "Ampere Computing";
default: break;
}
sprintf( buf, "0x%x", v );
return buf;
}
static const char* DecodeArmPart( uint32_t impl, uint32_t part )
{
static char buf[16];
switch( impl )
{
case 0x41: // ARM
switch( part )
{
case 0x810: return "810";
case 0x920: return "920";
case 0x922: return "922";
case 0x926: return "926";
case 0x940: return "940";
case 0x946: return "946";
case 0x966: return "966";
case 0xa20: return "1020";
case 0xa22: return "1022";
case 0xa26: return "1026";
case 0xb02: return "11 MPCore";
case 0xb36: return "1136";
case 0xb56: return "1156";
case 0xb76: return "1176";
case 0xc05: return " Cortex-A5";
case 0xc07: return " Cortex-A7";
case 0xc08: return " Cortex-A8";
case 0xc09: return " Cortex-A9";
case 0xc0c: return " Cortex-A12";
case 0xc0d: return " Rockchip RK3288";
case 0xc0e: return " Cortex-A17";
case 0xc0f: return " Cortex-A15";
case 0xc14: return " Cortex-R4";
case 0xc15: return " Cortex-R5";
case 0xc17: return " Cortex-R7";
case 0xc18: return " Cortex-R8";
case 0xc20: return " Cortex-M0";
case 0xc21: return " Cortex-M1";
case 0xc23: return " Cortex-M3";
case 0xc24: return " Cortex-M4";
case 0xc27: return " Cortex-M7";
case 0xc60: return " Cortex-M0+";
case 0xd00: return " AArch64 simulator";
case 0xd01: return " Cortex-A32";
case 0xd02: return " Cortex-A34";
case 0xd03: return " Cortex-A53";
case 0xd04: return " Cortex-A35";
case 0xd05: return " Cortex-A55";
case 0xd06: return " Cortex-A65";
case 0xd07: return " Cortex-A57";
case 0xd08: return " Cortex-A72";
case 0xd09: return " Cortex-A73";
case 0xd0a: return " Cortex-A75";
case 0xd0b: return " Cortex-A76";
case 0xd0c: return " Neoverse N1";
case 0xd0d: return " Cortex-A77";
case 0xd0e: return " Cortex-A76AE";
case 0xd0f: return " AEMv8";
case 0xd13: return " Cortex-R52";
case 0xd20: return " Cortex-M23";
case 0xd21: return " Cortex-M33";
case 0xd22: return " Cortex-M55";
case 0xd40: return " Neoverse V1";
case 0xd41: return " Cortex-A78";
case 0xd42: return " Cortex-A78AE";
case 0xd43: return " Cortex-A65AE";
case 0xd44: return " Cortex-X1";
case 0xd47: return " Cortex-A710";
case 0xd48: return " Cortex-X2";
case 0xd49: return " Neoverse N2";
case 0xd4a: return " Neoverse E1";
case 0xd4b: return " Cortex-A78C";
case 0xd4c: return " Cortex-X1C";
default: break;
}
case 0x42: // Broadcom
switch( part )
{
case 0xf: return " Brahma B15";
case 0x100: return " Brahma B53";
case 0x516: return " ThunderX2";
default: break;
}
case 0x43: // Cavium
switch( part )
{
case 0xa0: return " ThunderX";
case 0xa1: return " ThunderX 88XX";
case 0xa2: return " ThunderX 81XX";
case 0xa3: return " ThunderX 83XX";
case 0xaf: return " ThunderX2 99xx";
case 0xb0: return " OcteonTX2";
case 0xb1: return " OcteonTX2 T98";
case 0xb2: return " OcteonTX2 T96";
case 0xb3: return " OcteonTX2 F95";
case 0xb4: return " OcteonTX2 F95N";
case 0xb5: return " OcteonTX2 F95MM";
case 0xb6: return " OcteonTX2 F95O";
case 0xb8: return " ThunderX3 T110";
default: break;
}
case 0x44: // DEC
switch( part )
{
case 0xa10: return " SA110";
case 0xa11: return " SA1100";
default: break;
}
case 0x46: // Fujitsu
switch( part )
{
case 0x1: return " A64FX";
default: break;
}
case 0x48: // HiSilicon
switch( part )
{
case 0xd01: return " TSV100";
case 0xd40: return " Kirin 980";
default: break;
}
case 0x4e: // Nvidia
switch( part )
{
case 0x0: return " Denver";
case 0x3: return " Denver 2";
case 0x4: return " Carmel";
default: break;
}
case 0x50: // Applied Micro
switch( part )
{
case 0x0: return " X-Gene";
default: break;
}
case 0x51: // Qualcomm
switch( part )
{
case 0xf: return " Scorpion";
case 0x2d: return " Scorpion";
case 0x4d: return " Krait";
case 0x6f: return " Krait";
case 0x200: return " Kryo";
case 0x201: return " Kryo Silver (Snapdragon 821)";
case 0x205: return " Kryo Gold";
case 0x211: return " Kryo Silver (Snapdragon 820)";
case 0x800: return " Kryo 260 / 280 Gold";
case 0x801: return " Kryo 260 / 280 Silver";
case 0x802: return " Kryo 385 Gold";
case 0x803: return " Kryo 385 Silver";
case 0x804: return " Kryo 485 Gold";
case 0x805: return " Kryo 4xx/5xx Silver";
case 0xc00: return " Falkor";
case 0xc01: return " Saphira";
default: break;
}
case 0x53: // Samsung
switch( part )
{
case 0x1: return " Exynos M1/M2";
case 0x2: return " Exynos M3";
case 0x3: return " Exynos M4";
case 0x4: return " Exynos M5";
default: break;
}
case 0x54: // Texas Instruments
switch( part )
{
case 0x925: return " TI925";
default: break;
}
case 0x56: // Marvell
switch( part )
{
case 0x131: return " Feroceon 88FR131";
case 0x581: return " PJ4 / PJ4B";
case 0x584: return " PJ4B-MP / PJ4C";
default: break;
}
case 0x61: // Apple
switch( part )
{
case 0x1: return " Cyclone";
case 0x2: return " Typhoon";
case 0x3: return " Typhoon/Capri";
case 0x4: return " Twister";
case 0x5: return " Twister/Elba/Malta";
case 0x6: return " Hurricane";
case 0x7: return " Hurricane/Myst";
case 0x22: return " M1 Icestorm";
case 0x23: return " M1 Firestorm";
case 0x24: return " M1 Icestorm Pro";
case 0x25: return " M1 Firestorm Pro";
case 0x28: return " M1 Icestorm Max";
case 0x29: return " M1 Firestorm Max";
default: break;
}
case 0x66: // Faraday
switch( part )
{
case 0x526: return " FA526";
case 0x626: return " FA626";
default: break;
}
case 0x68: // HXT
switch( part )
{
case 0x0: return " Phecda";
default: break;
}
case 0xc0: // Ampere Computing
switch( part )
{
case 0xac3: return " Ampere1";
default: break;
}
default: break;
}
sprintf( buf, " 0x%x", part );
return buf;
}
#elif defined __APPLE__ && TARGET_OS_IPHONE == 1
static const char* DecodeIosDevice( const char* id )
{
static const char* DeviceTable[] = {
"i386", "32-bit simulator",
"x86_64", "64-bit simulator",
"iPhone1,1", "iPhone",
"iPhone1,2", "iPhone 3G",
"iPhone2,1", "iPhone 3GS",
"iPhone3,1", "iPhone 4 (GSM)",
"iPhone3,2", "iPhone 4 (GSM)",
"iPhone3,3", "iPhone 4 (CDMA)",
"iPhone4,1", "iPhone 4S",
"iPhone5,1", "iPhone 5 (A1428)",
"iPhone5,2", "iPhone 5 (A1429)",
"iPhone5,3", "iPhone 5c (A1456/A1532)",
"iPhone5,4", "iPhone 5c (A1507/A1516/1526/A1529)",
"iPhone6,1", "iPhone 5s (A1433/A1533)",
"iPhone6,2", "iPhone 5s (A1457/A1518/A1528/A1530)",
"iPhone7,1", "iPhone 6 Plus",
"iPhone7,2", "iPhone 6",
"iPhone8,1", "iPhone 6S",
"iPhone8,2", "iPhone 6S Plus",
"iPhone8,4", "iPhone SE",
"iPhone9,1", "iPhone 7 (CDMA)",
"iPhone9,2", "iPhone 7 Plus (CDMA)",
"iPhone9,3", "iPhone 7 (GSM)",
"iPhone9,4", "iPhone 7 Plus (GSM)",
"iPhone10,1", "iPhone 8 (CDMA)",
"iPhone10,2", "iPhone 8 Plus (CDMA)",
"iPhone10,3", "iPhone X (CDMA)",
"iPhone10,4", "iPhone 8 (GSM)",
"iPhone10,5", "iPhone 8 Plus (GSM)",
"iPhone10,6", "iPhone X (GSM)",
"iPhone11,2", "iPhone XS",
"iPhone11,4", "iPhone XS Max",
"iPhone11,6", "iPhone XS Max China",
"iPhone11,8", "iPhone XR",
"iPhone12,1", "iPhone 11",
"iPhone12,3", "iPhone 11 Pro",
"iPhone12,5", "iPhone 11 Pro Max",
"iPhone12,8", "iPhone SE 2nd Gen",
"iPhone13,1", "iPhone 12 Mini",
"iPhone13,2", "iPhone 12",
"iPhone13,3", "iPhone 12 Pro",
"iPhone13,4", "iPhone 12 Pro Max",
"iPhone14,2", "iPhone 13 Pro",
"iPhone14,3", "iPhone 13 Pro Max",
"iPhone14,4", "iPhone 13 Mini",
"iPhone14,5", "iPhone 13",
"iPhone14,6", "iPhone SE 3rd Gen",
"iPad1,1", "iPad (A1219/A1337)",
"iPad2,1", "iPad 2 (A1395)",
"iPad2,2", "iPad 2 (A1396)",
"iPad2,3", "iPad 2 (A1397)",
"iPad2,4", "iPad 2 (A1395)",
"iPad2,5", "iPad Mini (A1432)",
"iPad2,6", "iPad Mini (A1454)",
"iPad2,7", "iPad Mini (A1455)",
"iPad3,1", "iPad 3 (A1416)",
"iPad3,2", "iPad 3 (A1403)",
"iPad3,3", "iPad 3 (A1430)",
"iPad3,4", "iPad 4 (A1458)",
"iPad3,5", "iPad 4 (A1459)",
"iPad3,6", "iPad 4 (A1460)",
"iPad4,1", "iPad Air (A1474)",
"iPad4,2", "iPad Air (A1475)",
"iPad4,3", "iPad Air (A1476)",
"iPad4,4", "iPad Mini 2 (A1489)",
"iPad4,5", "iPad Mini 2 (A1490)",
"iPad4,6", "iPad Mini 2 (A1491)",
"iPad4,7", "iPad Mini 3 (A1599)",
"iPad4,8", "iPad Mini 3 (A1600)",
"iPad4,9", "iPad Mini 3 (A1601)",
"iPad5,1", "iPad Mini 4 (A1538)",
"iPad5,2", "iPad Mini 4 (A1550)",
"iPad5,3", "iPad Air 2 (A1566)",
"iPad5,4", "iPad Air 2 (A1567)",
"iPad6,3", "iPad Pro 9.7\" (A1673)",
"iPad6,4", "iPad Pro 9.7\" (A1674)",
"iPad6,5", "iPad Pro 9.7\" (A1675)",
"iPad6,7", "iPad Pro 12.9\" (A1584)",
"iPad6,8", "iPad Pro 12.9\" (A1652)",
"iPad6,11", "iPad 5th gen (A1822)",
"iPad6,12", "iPad 5th gen (A1823)",
"iPad7,1", "iPad Pro 12.9\" 2nd gen (A1670)",
"iPad7,2", "iPad Pro 12.9\" 2nd gen (A1671/A1821)",
"iPad7,3", "iPad Pro 10.5\" (A1701)",
"iPad7,4", "iPad Pro 10.5\" (A1709)",
"iPad7,5", "iPad 6th gen (A1893)",
"iPad7,6", "iPad 6th gen (A1954)",
"iPad7,11", "iPad 7th gen 10.2\" (Wifi)",
"iPad7,12", "iPad 7th gen 10.2\" (Wifi+Cellular)",
"iPad8,1", "iPad Pro 11\" (A1980)",
"iPad8,2", "iPad Pro 11\" (A1980)",
"iPad8,3", "iPad Pro 11\" (A1934/A1979/A2013)",
"iPad8,4", "iPad Pro 11\" (A1934/A1979/A2013)",
"iPad8,5", "iPad Pro 12.9\" 3rd gen (A1876)",
"iPad8,6", "iPad Pro 12.9\" 3rd gen (A1876)",
"iPad8,7", "iPad Pro 12.9\" 3rd gen (A1895/A1983/A2014)",
"iPad8,8", "iPad Pro 12.9\" 3rd gen (A1895/A1983/A2014)",
"iPad8,9", "iPad Pro 11\" 2nd gen (Wifi)",
"iPad8,10", "iPad Pro 11\" 2nd gen (Wifi+Cellular)",
"iPad8,11", "iPad Pro 12.9\" 4th gen (Wifi)",
"iPad8,12", "iPad Pro 12.9\" 4th gen (Wifi+Cellular)",
"iPad11,1", "iPad Mini 5th gen (A2133)",
"iPad11,2", "iPad Mini 5th gen (A2124/A2125/A2126)",
"iPad11,3", "iPad Air 3rd gen (A2152)",
"iPad11,4", "iPad Air 3rd gen (A2123/A2153/A2154)",
"iPad11,6", "iPad 8th gen (WiFi)",
"iPad11,7", "iPad 8th gen (WiFi+Cellular)",
"iPad13,1", "iPad Air 4th gen (WiFi)",
"iPad13,2", "iPad Air 4th gen (WiFi+Cellular)",
"iPad13,4", "iPad Pro 11\" 3rd gen",
"iPad13,5", "iPad Pro 11\" 3rd gen",
"iPad13,6", "iPad Pro 11\" 3rd gen",
"iPad13,7", "iPad Pro 11\" 3rd gen",
"iPad13,8", "iPad Pro 12.9\" 5th gen",
"iPad13,9", "iPad Pro 12.9\" 5th gen",
"iPad13,10", "iPad Pro 12.9\" 5th gen",
"iPad13,11", "iPad Pro 12.9\" 5th gen",
"iPad13,16", "iPad Air 5th Gen (WiFi)",
"iPad13,17", "iPad Air 5th Gen (WiFi+Cellular)",
"iPod1,1", "iPod Touch",
"iPod2,1", "iPod Touch 2nd gen",
"iPod3,1", "iPod Touch 3rd gen",
"iPod4,1", "iPod Touch 4th gen",
"iPod5,1", "iPod Touch 5th gen",
"iPod7,1", "iPod Touch 6th gen",
"iPod9,1", "iPod Touch 7th gen",
nullptr
};
auto ptr = DeviceTable;
while( *ptr )
{
if( strcmp( ptr[0], id ) == 0 ) return ptr[1];
ptr += 2;
}
return id;
}
#endif
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyRingBuffer.hpp | #include <atomic>
#include <assert.h>
#include <errno.h>
#include <linux/perf_event.h>
#include <stdint.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <unistd.h>
#include "TracyDebug.hpp"
namespace tracy
{
class RingBuffer
{
public:
RingBuffer( unsigned int size, int fd, int id, int cpu = -1 )
: m_size( size )
, m_id( id )
, m_cpu( cpu )
, m_fd( fd )
{
const auto pageSize = uint32_t( getpagesize() );
assert( size >= pageSize );
assert( __builtin_popcount( size ) == 1 );
m_mapSize = size + pageSize;
auto mapAddr = mmap( nullptr, m_mapSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );
if( mapAddr == MAP_FAILED )
{
TracyDebug( "mmap failed: errno %i (%s)\n", errno, strerror( errno ) );
m_fd = 0;
m_metadata = nullptr;
close( fd );
return;
}
m_metadata = (perf_event_mmap_page*)mapAddr;
assert( m_metadata->data_offset == pageSize );
m_buffer = ((char*)mapAddr) + pageSize;
m_tail = m_metadata->data_tail;
}
~RingBuffer()
{
if( m_metadata ) munmap( m_metadata, m_mapSize );
if( m_fd ) close( m_fd );
}
RingBuffer( const RingBuffer& ) = delete;
RingBuffer& operator=( const RingBuffer& ) = delete;
RingBuffer( RingBuffer&& other )
{
memcpy( (char*)&other, (char*)this, sizeof( RingBuffer ) );
m_metadata = nullptr;
m_fd = 0;
}
RingBuffer& operator=( RingBuffer&& other )
{
memcpy( (char*)&other, (char*)this, sizeof( RingBuffer ) );
m_metadata = nullptr;
m_fd = 0;
return *this;
}
bool IsValid() const { return m_metadata != nullptr; }
int GetId() const { return m_id; }
int GetCpu() const { return m_cpu; }
void Enable()
{
ioctl( m_fd, PERF_EVENT_IOC_ENABLE, 0 );
}
void Read( void* dst, uint64_t offset, uint64_t cnt )
{
const auto size = m_size;
auto src = ( m_tail + offset ) % size;
if( src + cnt <= size )
{
memcpy( dst, m_buffer + src, cnt );
}
else
{
const auto s0 = size - src;
const auto buf = m_buffer;
memcpy( dst, buf + src, s0 );
memcpy( (char*)dst + s0, buf, cnt - s0 );
}
}
void Advance( uint64_t cnt )
{
m_tail += cnt;
StoreTail();
}
bool CheckTscCaps() const
{
return m_metadata->cap_user_time_zero;
}
int64_t ConvertTimeToTsc( int64_t timestamp ) const
{
if( !m_metadata->cap_user_time_zero ) return 0;
const auto time = timestamp - m_metadata->time_zero;
const auto quot = time / m_metadata->time_mult;
const auto rem = time % m_metadata->time_mult;
return ( quot << m_metadata->time_shift ) + ( rem << m_metadata->time_shift ) / m_metadata->time_mult;
}
uint64_t LoadHead() const
{
return std::atomic_load_explicit( (const volatile std::atomic<uint64_t>*)&m_metadata->data_head, std::memory_order_acquire );
}
uint64_t GetTail() const
{
return m_tail;
}
private:
void StoreTail()
{
std::atomic_store_explicit( (volatile std::atomic<uint64_t>*)&m_metadata->data_tail, m_tail, std::memory_order_release );
}
unsigned int m_size;
uint64_t m_tail;
char* m_buffer;
int m_id;
int m_cpu;
perf_event_mmap_page* m_metadata;
size_t m_mapSize;
int m_fd;
};
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracySysTrace.hpp | #ifndef __TRACYSYSTRACE_HPP__
#define __TRACYSYSTRACE_HPP__
#if !defined TRACY_NO_SYSTEM_TRACING && ( defined _WIN32 || defined __linux__ )
# include "../common/TracyUwp.hpp"
# ifndef TRACY_UWP
# define TRACY_HAS_SYSTEM_TRACING
# endif
#endif
#ifdef TRACY_HAS_SYSTEM_TRACING
#include <stdint.h>
namespace tracy
{
bool SysTraceStart( int64_t& samplingPeriod );
void SysTraceStop();
void SysTraceWorker( void* ptr );
void SysTraceGetExternalName( uint64_t thread, const char*& threadName, const char*& name );
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyDxt1.cpp | #include "TracyDxt1.hpp"
#include "../common/TracyForceInline.hpp"
#include <assert.h>
#include <stdint.h>
#include <string.h>
#ifdef __ARM_NEON
# include <arm_neon.h>
#endif
#if defined __AVX__ && !defined __SSE4_1__
# define __SSE4_1__
#endif
#if defined __SSE4_1__ || defined __AVX2__
# ifdef _MSC_VER
# include <intrin.h>
# else
# include <x86intrin.h>
# ifndef _mm256_cvtsi256_si32
# define _mm256_cvtsi256_si32( v ) ( _mm_cvtsi128_si32( _mm256_castsi256_si128( v ) ) )
# endif
# endif
#endif
namespace tracy
{
static inline uint16_t to565( uint8_t r, uint8_t g, uint8_t b )
{
return ( ( r & 0xF8 ) << 8 ) | ( ( g & 0xFC ) << 3 ) | ( b >> 3 );
}
static inline uint16_t to565( uint32_t c )
{
return
( ( c & 0xF80000 ) >> 19 ) |
( ( c & 0x00FC00 ) >> 5 ) |
( ( c & 0x0000F8 ) << 8 );
}
static const uint16_t DivTable[255*3+1] = {
0xffff, 0xffff, 0xffff, 0xffff, 0xcccc, 0xaaaa, 0x9249, 0x8000, 0x71c7, 0x6666, 0x5d17, 0x5555, 0x4ec4, 0x4924, 0x4444, 0x4000,
0x3c3c, 0x38e3, 0x35e5, 0x3333, 0x30c3, 0x2e8b, 0x2c85, 0x2aaa, 0x28f5, 0x2762, 0x25ed, 0x2492, 0x234f, 0x2222, 0x2108, 0x2000,
0x1f07, 0x1e1e, 0x1d41, 0x1c71, 0x1bac, 0x1af2, 0x1a41, 0x1999, 0x18f9, 0x1861, 0x17d0, 0x1745, 0x16c1, 0x1642, 0x15c9, 0x1555,
0x14e5, 0x147a, 0x1414, 0x13b1, 0x1352, 0x12f6, 0x129e, 0x1249, 0x11f7, 0x11a7, 0x115b, 0x1111, 0x10c9, 0x1084, 0x1041, 0x1000,
0x0fc0, 0x0f83, 0x0f48, 0x0f0f, 0x0ed7, 0x0ea0, 0x0e6c, 0x0e38, 0x0e07, 0x0dd6, 0x0da7, 0x0d79, 0x0d4c, 0x0d20, 0x0cf6, 0x0ccc,
0x0ca4, 0x0c7c, 0x0c56, 0x0c30, 0x0c0c, 0x0be8, 0x0bc5, 0x0ba2, 0x0b81, 0x0b60, 0x0b40, 0x0b21, 0x0b02, 0x0ae4, 0x0ac7, 0x0aaa,
0x0a8e, 0x0a72, 0x0a57, 0x0a3d, 0x0a23, 0x0a0a, 0x09f1, 0x09d8, 0x09c0, 0x09a9, 0x0991, 0x097b, 0x0964, 0x094f, 0x0939, 0x0924,
0x090f, 0x08fb, 0x08e7, 0x08d3, 0x08c0, 0x08ad, 0x089a, 0x0888, 0x0876, 0x0864, 0x0853, 0x0842, 0x0831, 0x0820, 0x0810, 0x0800,
0x07f0, 0x07e0, 0x07d1, 0x07c1, 0x07b3, 0x07a4, 0x0795, 0x0787, 0x0779, 0x076b, 0x075d, 0x0750, 0x0743, 0x0736, 0x0729, 0x071c,
0x070f, 0x0703, 0x06f7, 0x06eb, 0x06df, 0x06d3, 0x06c8, 0x06bc, 0x06b1, 0x06a6, 0x069b, 0x0690, 0x0685, 0x067b, 0x0670, 0x0666,
0x065c, 0x0652, 0x0648, 0x063e, 0x0634, 0x062b, 0x0621, 0x0618, 0x060f, 0x0606, 0x05fd, 0x05f4, 0x05eb, 0x05e2, 0x05d9, 0x05d1,
0x05c9, 0x05c0, 0x05b8, 0x05b0, 0x05a8, 0x05a0, 0x0598, 0x0590, 0x0588, 0x0581, 0x0579, 0x0572, 0x056b, 0x0563, 0x055c, 0x0555,
0x054e, 0x0547, 0x0540, 0x0539, 0x0532, 0x052b, 0x0525, 0x051e, 0x0518, 0x0511, 0x050b, 0x0505, 0x04fe, 0x04f8, 0x04f2, 0x04ec,
0x04e6, 0x04e0, 0x04da, 0x04d4, 0x04ce, 0x04c8, 0x04c3, 0x04bd, 0x04b8, 0x04b2, 0x04ad, 0x04a7, 0x04a2, 0x049c, 0x0497, 0x0492,
0x048d, 0x0487, 0x0482, 0x047d, 0x0478, 0x0473, 0x046e, 0x0469, 0x0465, 0x0460, 0x045b, 0x0456, 0x0452, 0x044d, 0x0448, 0x0444,
0x043f, 0x043b, 0x0436, 0x0432, 0x042d, 0x0429, 0x0425, 0x0421, 0x041c, 0x0418, 0x0414, 0x0410, 0x040c, 0x0408, 0x0404, 0x0400,
0x03fc, 0x03f8, 0x03f4, 0x03f0, 0x03ec, 0x03e8, 0x03e4, 0x03e0, 0x03dd, 0x03d9, 0x03d5, 0x03d2, 0x03ce, 0x03ca, 0x03c7, 0x03c3,
0x03c0, 0x03bc, 0x03b9, 0x03b5, 0x03b2, 0x03ae, 0x03ab, 0x03a8, 0x03a4, 0x03a1, 0x039e, 0x039b, 0x0397, 0x0394, 0x0391, 0x038e,
0x038b, 0x0387, 0x0384, 0x0381, 0x037e, 0x037b, 0x0378, 0x0375, 0x0372, 0x036f, 0x036c, 0x0369, 0x0366, 0x0364, 0x0361, 0x035e,
0x035b, 0x0358, 0x0355, 0x0353, 0x0350, 0x034d, 0x034a, 0x0348, 0x0345, 0x0342, 0x0340, 0x033d, 0x033a, 0x0338, 0x0335, 0x0333,
0x0330, 0x032e, 0x032b, 0x0329, 0x0326, 0x0324, 0x0321, 0x031f, 0x031c, 0x031a, 0x0317, 0x0315, 0x0313, 0x0310, 0x030e, 0x030c,
0x0309, 0x0307, 0x0305, 0x0303, 0x0300, 0x02fe, 0x02fc, 0x02fa, 0x02f7, 0x02f5, 0x02f3, 0x02f1, 0x02ef, 0x02ec, 0x02ea, 0x02e8,
0x02e6, 0x02e4, 0x02e2, 0x02e0, 0x02de, 0x02dc, 0x02da, 0x02d8, 0x02d6, 0x02d4, 0x02d2, 0x02d0, 0x02ce, 0x02cc, 0x02ca, 0x02c8,
0x02c6, 0x02c4, 0x02c2, 0x02c0, 0x02be, 0x02bc, 0x02bb, 0x02b9, 0x02b7, 0x02b5, 0x02b3, 0x02b1, 0x02b0, 0x02ae, 0x02ac, 0x02aa,
0x02a8, 0x02a7, 0x02a5, 0x02a3, 0x02a1, 0x02a0, 0x029e, 0x029c, 0x029b, 0x0299, 0x0297, 0x0295, 0x0294, 0x0292, 0x0291, 0x028f,
0x028d, 0x028c, 0x028a, 0x0288, 0x0287, 0x0285, 0x0284, 0x0282, 0x0280, 0x027f, 0x027d, 0x027c, 0x027a, 0x0279, 0x0277, 0x0276,
0x0274, 0x0273, 0x0271, 0x0270, 0x026e, 0x026d, 0x026b, 0x026a, 0x0268, 0x0267, 0x0265, 0x0264, 0x0263, 0x0261, 0x0260, 0x025e,
0x025d, 0x025c, 0x025a, 0x0259, 0x0257, 0x0256, 0x0255, 0x0253, 0x0252, 0x0251, 0x024f, 0x024e, 0x024d, 0x024b, 0x024a, 0x0249,
0x0247, 0x0246, 0x0245, 0x0243, 0x0242, 0x0241, 0x0240, 0x023e, 0x023d, 0x023c, 0x023b, 0x0239, 0x0238, 0x0237, 0x0236, 0x0234,
0x0233, 0x0232, 0x0231, 0x0230, 0x022e, 0x022d, 0x022c, 0x022b, 0x022a, 0x0229, 0x0227, 0x0226, 0x0225, 0x0224, 0x0223, 0x0222,
0x0220, 0x021f, 0x021e, 0x021d, 0x021c, 0x021b, 0x021a, 0x0219, 0x0218, 0x0216, 0x0215, 0x0214, 0x0213, 0x0212, 0x0211, 0x0210,
0x020f, 0x020e, 0x020d, 0x020c, 0x020b, 0x020a, 0x0209, 0x0208, 0x0207, 0x0206, 0x0205, 0x0204, 0x0203, 0x0202, 0x0201, 0x0200,
0x01ff, 0x01fe, 0x01fd, 0x01fc, 0x01fb, 0x01fa, 0x01f9, 0x01f8, 0x01f7, 0x01f6, 0x01f5, 0x01f4, 0x01f3, 0x01f2, 0x01f1, 0x01f0,
0x01ef, 0x01ee, 0x01ed, 0x01ec, 0x01eb, 0x01ea, 0x01e9, 0x01e9, 0x01e8, 0x01e7, 0x01e6, 0x01e5, 0x01e4, 0x01e3, 0x01e2, 0x01e1,
0x01e0, 0x01e0, 0x01df, 0x01de, 0x01dd, 0x01dc, 0x01db, 0x01da, 0x01da, 0x01d9, 0x01d8, 0x01d7, 0x01d6, 0x01d5, 0x01d4, 0x01d4,
0x01d3, 0x01d2, 0x01d1, 0x01d0, 0x01cf, 0x01cf, 0x01ce, 0x01cd, 0x01cc, 0x01cb, 0x01cb, 0x01ca, 0x01c9, 0x01c8, 0x01c7, 0x01c7,
0x01c6, 0x01c5, 0x01c4, 0x01c3, 0x01c3, 0x01c2, 0x01c1, 0x01c0, 0x01c0, 0x01bf, 0x01be, 0x01bd, 0x01bd, 0x01bc, 0x01bb, 0x01ba,
0x01ba, 0x01b9, 0x01b8, 0x01b7, 0x01b7, 0x01b6, 0x01b5, 0x01b4, 0x01b4, 0x01b3, 0x01b2, 0x01b2, 0x01b1, 0x01b0, 0x01af, 0x01af,
0x01ae, 0x01ad, 0x01ad, 0x01ac, 0x01ab, 0x01aa, 0x01aa, 0x01a9, 0x01a8, 0x01a8, 0x01a7, 0x01a6, 0x01a6, 0x01a5, 0x01a4, 0x01a4,
0x01a3, 0x01a2, 0x01a2, 0x01a1, 0x01a0, 0x01a0, 0x019f, 0x019e, 0x019e, 0x019d, 0x019c, 0x019c, 0x019b, 0x019a, 0x019a, 0x0199,
0x0198, 0x0198, 0x0197, 0x0197, 0x0196, 0x0195, 0x0195, 0x0194, 0x0193, 0x0193, 0x0192, 0x0192, 0x0191, 0x0190, 0x0190, 0x018f,
0x018f, 0x018e, 0x018d, 0x018d, 0x018c, 0x018b, 0x018b, 0x018a, 0x018a, 0x0189, 0x0189, 0x0188, 0x0187, 0x0187, 0x0186, 0x0186,
0x0185, 0x0184, 0x0184, 0x0183, 0x0183, 0x0182, 0x0182, 0x0181, 0x0180, 0x0180, 0x017f, 0x017f, 0x017e, 0x017e, 0x017d, 0x017d,
0x017c, 0x017b, 0x017b, 0x017a, 0x017a, 0x0179, 0x0179, 0x0178, 0x0178, 0x0177, 0x0177, 0x0176, 0x0175, 0x0175, 0x0174, 0x0174,
0x0173, 0x0173, 0x0172, 0x0172, 0x0171, 0x0171, 0x0170, 0x0170, 0x016f, 0x016f, 0x016e, 0x016e, 0x016d, 0x016d, 0x016c, 0x016c,
0x016b, 0x016b, 0x016a, 0x016a, 0x0169, 0x0169, 0x0168, 0x0168, 0x0167, 0x0167, 0x0166, 0x0166, 0x0165, 0x0165, 0x0164, 0x0164,
0x0163, 0x0163, 0x0162, 0x0162, 0x0161, 0x0161, 0x0160, 0x0160, 0x015f, 0x015f, 0x015e, 0x015e, 0x015d, 0x015d, 0x015d, 0x015c,
0x015c, 0x015b, 0x015b, 0x015a, 0x015a, 0x0159, 0x0159, 0x0158, 0x0158, 0x0158, 0x0157, 0x0157, 0x0156, 0x0156
};
#if defined __ARM_NEON && defined __aarch64__
static const uint16_t DivTableNEON[255*3+1] = {
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x1c71, 0x1af2, 0x1999, 0x1861, 0x1745, 0x1642, 0x1555, 0x147a, 0x13b1, 0x12f6, 0x1249, 0x11a7, 0x1111, 0x1084, 0x1000,
0x0f83, 0x0f0f, 0x0ea0, 0x0e38, 0x0dd6, 0x0d79, 0x0d20, 0x0ccc, 0x0c7c, 0x0c30, 0x0be8, 0x0ba2, 0x0b60, 0x0b21, 0x0ae4, 0x0aaa,
0x0a72, 0x0a3d, 0x0a0a, 0x09d8, 0x09a9, 0x097b, 0x094f, 0x0924, 0x08fb, 0x08d3, 0x08ad, 0x0888, 0x0864, 0x0842, 0x0820, 0x0800,
0x07e0, 0x07c1, 0x07a4, 0x0787, 0x076b, 0x0750, 0x0736, 0x071c, 0x0703, 0x06eb, 0x06d3, 0x06bc, 0x06a6, 0x0690, 0x067b, 0x0666,
0x0652, 0x063e, 0x062b, 0x0618, 0x0606, 0x05f4, 0x05e2, 0x05d1, 0x05c0, 0x05b0, 0x05a0, 0x0590, 0x0581, 0x0572, 0x0563, 0x0555,
0x0547, 0x0539, 0x052b, 0x051e, 0x0511, 0x0505, 0x04f8, 0x04ec, 0x04e0, 0x04d4, 0x04c8, 0x04bd, 0x04b2, 0x04a7, 0x049c, 0x0492,
0x0487, 0x047d, 0x0473, 0x0469, 0x0460, 0x0456, 0x044d, 0x0444, 0x043b, 0x0432, 0x0429, 0x0421, 0x0418, 0x0410, 0x0408, 0x0400,
0x03f8, 0x03f0, 0x03e8, 0x03e0, 0x03d9, 0x03d2, 0x03ca, 0x03c3, 0x03bc, 0x03b5, 0x03ae, 0x03a8, 0x03a1, 0x039b, 0x0394, 0x038e,
0x0387, 0x0381, 0x037b, 0x0375, 0x036f, 0x0369, 0x0364, 0x035e, 0x0358, 0x0353, 0x034d, 0x0348, 0x0342, 0x033d, 0x0338, 0x0333,
0x032e, 0x0329, 0x0324, 0x031f, 0x031a, 0x0315, 0x0310, 0x030c, 0x0307, 0x0303, 0x02fe, 0x02fa, 0x02f5, 0x02f1, 0x02ec, 0x02e8,
0x02e4, 0x02e0, 0x02dc, 0x02d8, 0x02d4, 0x02d0, 0x02cc, 0x02c8, 0x02c4, 0x02c0, 0x02bc, 0x02b9, 0x02b5, 0x02b1, 0x02ae, 0x02aa,
0x02a7, 0x02a3, 0x02a0, 0x029c, 0x0299, 0x0295, 0x0292, 0x028f, 0x028c, 0x0288, 0x0285, 0x0282, 0x027f, 0x027c, 0x0279, 0x0276,
0x0273, 0x0270, 0x026d, 0x026a, 0x0267, 0x0264, 0x0261, 0x025e, 0x025c, 0x0259, 0x0256, 0x0253, 0x0251, 0x024e, 0x024b, 0x0249,
0x0246, 0x0243, 0x0241, 0x023e, 0x023c, 0x0239, 0x0237, 0x0234, 0x0232, 0x0230, 0x022d, 0x022b, 0x0229, 0x0226, 0x0224, 0x0222,
0x021f, 0x021d, 0x021b, 0x0219, 0x0216, 0x0214, 0x0212, 0x0210, 0x020e, 0x020c, 0x020a, 0x0208, 0x0206, 0x0204, 0x0202, 0x0200,
0x01fe, 0x01fc, 0x01fa, 0x01f8, 0x01f6, 0x01f4, 0x01f2, 0x01f0, 0x01ee, 0x01ec, 0x01ea, 0x01e9, 0x01e7, 0x01e5, 0x01e3, 0x01e1,
0x01e0, 0x01de, 0x01dc, 0x01da, 0x01d9, 0x01d7, 0x01d5, 0x01d4, 0x01d2, 0x01d0, 0x01cf, 0x01cd, 0x01cb, 0x01ca, 0x01c8, 0x01c7,
0x01c5, 0x01c3, 0x01c2, 0x01c0, 0x01bf, 0x01bd, 0x01bc, 0x01ba, 0x01b9, 0x01b7, 0x01b6, 0x01b4, 0x01b3, 0x01b2, 0x01b0, 0x01af,
0x01ad, 0x01ac, 0x01aa, 0x01a9, 0x01a8, 0x01a6, 0x01a5, 0x01a4, 0x01a2, 0x01a1, 0x01a0, 0x019e, 0x019d, 0x019c, 0x019a, 0x0199,
0x0198, 0x0197, 0x0195, 0x0194, 0x0193, 0x0192, 0x0190, 0x018f, 0x018e, 0x018d, 0x018b, 0x018a, 0x0189, 0x0188, 0x0187, 0x0186,
0x0184, 0x0183, 0x0182, 0x0181, 0x0180, 0x017f, 0x017e, 0x017d, 0x017b, 0x017a, 0x0179, 0x0178, 0x0177, 0x0176, 0x0175, 0x0174,
0x0173, 0x0172, 0x0171, 0x0170, 0x016f, 0x016e, 0x016d, 0x016c, 0x016b, 0x016a, 0x0169, 0x0168, 0x0167, 0x0166, 0x0165, 0x0164,
0x0163, 0x0162, 0x0161, 0x0160, 0x015f, 0x015e, 0x015d, 0x015c, 0x015b, 0x015a, 0x0159, 0x0158, 0x0158, 0x0157, 0x0156, 0x0155,
0x0154, 0x0153, 0x0152, 0x0151, 0x0150, 0x0150, 0x014f, 0x014e, 0x014d, 0x014c, 0x014b, 0x014a, 0x014a, 0x0149, 0x0148, 0x0147,
0x0146, 0x0146, 0x0145, 0x0144, 0x0143, 0x0142, 0x0142, 0x0141, 0x0140, 0x013f, 0x013e, 0x013e, 0x013d, 0x013c, 0x013b, 0x013b,
0x013a, 0x0139, 0x0138, 0x0138, 0x0137, 0x0136, 0x0135, 0x0135, 0x0134, 0x0133, 0x0132, 0x0132, 0x0131, 0x0130, 0x0130, 0x012f,
0x012e, 0x012e, 0x012d, 0x012c, 0x012b, 0x012b, 0x012a, 0x0129, 0x0129, 0x0128, 0x0127, 0x0127, 0x0126, 0x0125, 0x0125, 0x0124,
0x0123, 0x0123, 0x0122, 0x0121, 0x0121, 0x0120, 0x0120, 0x011f, 0x011e, 0x011e, 0x011d, 0x011c, 0x011c, 0x011b, 0x011b, 0x011a,
0x0119, 0x0119, 0x0118, 0x0118, 0x0117, 0x0116, 0x0116, 0x0115, 0x0115, 0x0114, 0x0113, 0x0113, 0x0112, 0x0112, 0x0111, 0x0111,
0x0110, 0x010f, 0x010f, 0x010e, 0x010e, 0x010d, 0x010d, 0x010c, 0x010c, 0x010b, 0x010a, 0x010a, 0x0109, 0x0109, 0x0108, 0x0108,
0x0107, 0x0107, 0x0106, 0x0106, 0x0105, 0x0105, 0x0104, 0x0104, 0x0103, 0x0103, 0x0102, 0x0102, 0x0101, 0x0101, 0x0100, 0x0100,
0x00ff, 0x00ff, 0x00fe, 0x00fe, 0x00fd, 0x00fd, 0x00fc, 0x00fc, 0x00fb, 0x00fb, 0x00fa, 0x00fa, 0x00f9, 0x00f9, 0x00f8, 0x00f8,
0x00f7, 0x00f7, 0x00f6, 0x00f6, 0x00f5, 0x00f5, 0x00f4, 0x00f4, 0x00f4, 0x00f3, 0x00f3, 0x00f2, 0x00f2, 0x00f1, 0x00f1, 0x00f0,
0x00f0, 0x00f0, 0x00ef, 0x00ef, 0x00ee, 0x00ee, 0x00ed, 0x00ed, 0x00ed, 0x00ec, 0x00ec, 0x00eb, 0x00eb, 0x00ea, 0x00ea, 0x00ea,
0x00e9, 0x00e9, 0x00e8, 0x00e8, 0x00e7, 0x00e7, 0x00e7, 0x00e6, 0x00e6, 0x00e5, 0x00e5, 0x00e5, 0x00e4, 0x00e4, 0x00e3, 0x00e3,
0x00e3, 0x00e2, 0x00e2, 0x00e1, 0x00e1, 0x00e1, 0x00e0, 0x00e0, 0x00e0, 0x00df, 0x00df, 0x00de, 0x00de, 0x00de, 0x00dd, 0x00dd,
0x00dd, 0x00dc, 0x00dc, 0x00db, 0x00db, 0x00db, 0x00da, 0x00da, 0x00da, 0x00d9, 0x00d9, 0x00d9, 0x00d8, 0x00d8, 0x00d7, 0x00d7,
0x00d7, 0x00d6, 0x00d6, 0x00d6, 0x00d5, 0x00d5, 0x00d5, 0x00d4, 0x00d4, 0x00d4, 0x00d3, 0x00d3, 0x00d3, 0x00d2, 0x00d2, 0x00d2,
0x00d1, 0x00d1, 0x00d1, 0x00d0, 0x00d0, 0x00d0, 0x00cf, 0x00cf, 0x00cf, 0x00ce, 0x00ce, 0x00ce, 0x00cd, 0x00cd, 0x00cd, 0x00cc,
0x00cc, 0x00cc, 0x00cb, 0x00cb, 0x00cb, 0x00ca, 0x00ca, 0x00ca, 0x00c9, 0x00c9, 0x00c9, 0x00c9, 0x00c8, 0x00c8, 0x00c8, 0x00c7,
0x00c7, 0x00c7, 0x00c6, 0x00c6, 0x00c6, 0x00c5, 0x00c5, 0x00c5, 0x00c5, 0x00c4, 0x00c4, 0x00c4, 0x00c3, 0x00c3, 0x00c3, 0x00c3,
0x00c2, 0x00c2, 0x00c2, 0x00c1, 0x00c1, 0x00c1, 0x00c1, 0x00c0, 0x00c0, 0x00c0, 0x00bf, 0x00bf, 0x00bf, 0x00bf, 0x00be, 0x00be,
0x00be, 0x00bd, 0x00bd, 0x00bd, 0x00bd, 0x00bc, 0x00bc, 0x00bc, 0x00bc, 0x00bb, 0x00bb, 0x00bb, 0x00ba, 0x00ba, 0x00ba, 0x00ba,
0x00b9, 0x00b9, 0x00b9, 0x00b9, 0x00b8, 0x00b8, 0x00b8, 0x00b8, 0x00b7, 0x00b7, 0x00b7, 0x00b7, 0x00b6, 0x00b6, 0x00b6, 0x00b6,
0x00b5, 0x00b5, 0x00b5, 0x00b5, 0x00b4, 0x00b4, 0x00b4, 0x00b4, 0x00b3, 0x00b3, 0x00b3, 0x00b3, 0x00b2, 0x00b2, 0x00b2, 0x00b2,
0x00b1, 0x00b1, 0x00b1, 0x00b1, 0x00b0, 0x00b0, 0x00b0, 0x00b0, 0x00af, 0x00af, 0x00af, 0x00af, 0x00ae, 0x00ae, 0x00ae, 0x00ae,
0x00ae, 0x00ad, 0x00ad, 0x00ad, 0x00ad, 0x00ac, 0x00ac, 0x00ac, 0x00ac, 0x00ac, 0x00ab, 0x00ab, 0x00ab, 0x00ab,
};
#endif
static tracy_force_inline uint64_t ProcessRGB( const uint8_t* src )
{
#ifdef __SSE4_1__
__m128i px0 = _mm_loadu_si128(((__m128i*)src) + 0);
__m128i px1 = _mm_loadu_si128(((__m128i*)src) + 1);
__m128i px2 = _mm_loadu_si128(((__m128i*)src) + 2);
__m128i px3 = _mm_loadu_si128(((__m128i*)src) + 3);
__m128i smask = _mm_set1_epi32( 0xF8FCF8 );
__m128i sd0 = _mm_and_si128( px0, smask );
__m128i sd1 = _mm_and_si128( px1, smask );
__m128i sd2 = _mm_and_si128( px2, smask );
__m128i sd3 = _mm_and_si128( px3, smask );
__m128i sc = _mm_shuffle_epi32(sd0, _MM_SHUFFLE(0, 0, 0, 0));
__m128i sc0 = _mm_cmpeq_epi8(sd0, sc);
__m128i sc1 = _mm_cmpeq_epi8(sd1, sc);
__m128i sc2 = _mm_cmpeq_epi8(sd2, sc);
__m128i sc3 = _mm_cmpeq_epi8(sd3, sc);
__m128i sm0 = _mm_and_si128(sc0, sc1);
__m128i sm1 = _mm_and_si128(sc2, sc3);
__m128i sm = _mm_and_si128(sm0, sm1);
if( _mm_testc_si128(sm, _mm_set1_epi32(-1)) )
{
return uint64_t( to565( src[0], src[1], src[2] ) ) << 16;
}
__m128i amask = _mm_set1_epi32( 0xFFFFFF );
px0 = _mm_and_si128( px0, amask );
px1 = _mm_and_si128( px1, amask );
px2 = _mm_and_si128( px2, amask );
px3 = _mm_and_si128( px3, amask );
__m128i min0 = _mm_min_epu8( px0, px1 );
__m128i min1 = _mm_min_epu8( px2, px3 );
__m128i min2 = _mm_min_epu8( min0, min1 );
__m128i max0 = _mm_max_epu8( px0, px1 );
__m128i max1 = _mm_max_epu8( px2, px3 );
__m128i max2 = _mm_max_epu8( max0, max1 );
__m128i min3 = _mm_shuffle_epi32( min2, _MM_SHUFFLE( 2, 3, 0, 1 ) );
__m128i max3 = _mm_shuffle_epi32( max2, _MM_SHUFFLE( 2, 3, 0, 1 ) );
__m128i min4 = _mm_min_epu8( min2, min3 );
__m128i max4 = _mm_max_epu8( max2, max3 );
__m128i min5 = _mm_shuffle_epi32( min4, _MM_SHUFFLE( 0, 0, 2, 2 ) );
__m128i max5 = _mm_shuffle_epi32( max4, _MM_SHUFFLE( 0, 0, 2, 2 ) );
__m128i rmin = _mm_min_epu8( min4, min5 );
__m128i rmax = _mm_max_epu8( max4, max5 );
__m128i range1 = _mm_subs_epu8( rmax, rmin );
__m128i range2 = _mm_sad_epu8( rmax, rmin );
uint32_t vrange = _mm_cvtsi128_si32( range2 ) >> 1;
__m128i range = _mm_set1_epi16( DivTable[vrange] );
__m128i inset1 = _mm_srli_epi16( range1, 4 );
__m128i inset = _mm_and_si128( inset1, _mm_set1_epi8( 0xF ) );
__m128i min = _mm_adds_epu8( rmin, inset );
__m128i max = _mm_subs_epu8( rmax, inset );
__m128i c0 = _mm_subs_epu8( px0, rmin );
__m128i c1 = _mm_subs_epu8( px1, rmin );
__m128i c2 = _mm_subs_epu8( px2, rmin );
__m128i c3 = _mm_subs_epu8( px3, rmin );
__m128i is0 = _mm_maddubs_epi16( c0, _mm_set1_epi8( 1 ) );
__m128i is1 = _mm_maddubs_epi16( c1, _mm_set1_epi8( 1 ) );
__m128i is2 = _mm_maddubs_epi16( c2, _mm_set1_epi8( 1 ) );
__m128i is3 = _mm_maddubs_epi16( c3, _mm_set1_epi8( 1 ) );
__m128i s0 = _mm_hadd_epi16( is0, is1 );
__m128i s1 = _mm_hadd_epi16( is2, is3 );
__m128i m0 = _mm_mulhi_epu16( s0, range );
__m128i m1 = _mm_mulhi_epu16( s1, range );
__m128i p0 = _mm_packus_epi16( m0, m1 );
__m128i p1 = _mm_or_si128( _mm_srai_epi32( p0, 6 ), _mm_srai_epi32( p0, 12 ) );
__m128i p2 = _mm_or_si128( _mm_srai_epi32( p0, 18 ), p0 );
__m128i p3 = _mm_or_si128( p1, p2 );
__m128i p =_mm_shuffle_epi8( p3, _mm_set1_epi32( 0x0C080400 ) );
uint32_t vmin = _mm_cvtsi128_si32( min );
uint32_t vmax = _mm_cvtsi128_si32( max );
uint32_t vp = _mm_cvtsi128_si32( p );
return uint64_t( ( uint64_t( to565( vmin ) ) << 16 ) | to565( vmax ) | ( uint64_t( vp ) << 32 ) );
#elif defined __ARM_NEON
# ifdef __aarch64__
uint8x16x4_t px = vld4q_u8( src );
uint8x16_t lr = px.val[0];
uint8x16_t lg = px.val[1];
uint8x16_t lb = px.val[2];
uint8_t rmaxr = vmaxvq_u8( lr );
uint8_t rmaxg = vmaxvq_u8( lg );
uint8_t rmaxb = vmaxvq_u8( lb );
uint8_t rminr = vminvq_u8( lr );
uint8_t rming = vminvq_u8( lg );
uint8_t rminb = vminvq_u8( lb );
int rr = rmaxr - rminr;
int rg = rmaxg - rming;
int rb = rmaxb - rminb;
int vrange1 = rr + rg + rb;
uint16_t vrange2 = DivTableNEON[vrange1];
uint8_t insetr = rr >> 4;
uint8_t insetg = rg >> 4;
uint8_t insetb = rb >> 4;
uint8_t minr = rminr + insetr;
uint8_t ming = rming + insetg;
uint8_t minb = rminb + insetb;
uint8_t maxr = rmaxr - insetr;
uint8_t maxg = rmaxg - insetg;
uint8_t maxb = rmaxb - insetb;
uint8x16_t cr = vsubq_u8( lr, vdupq_n_u8( rminr ) );
uint8x16_t cg = vsubq_u8( lg, vdupq_n_u8( rming ) );
uint8x16_t cb = vsubq_u8( lb, vdupq_n_u8( rminb ) );
uint16x8_t is0l = vaddl_u8( vget_low_u8( cr ), vget_low_u8( cg ) );
uint16x8_t is0h = vaddl_u8( vget_high_u8( cr ), vget_high_u8( cg ) );
uint16x8_t is1l = vaddw_u8( is0l, vget_low_u8( cb ) );
uint16x8_t is1h = vaddw_u8( is0h, vget_high_u8( cb ) );
int16x8_t range = vdupq_n_s16( vrange2 );
uint16x8_t m0 = vreinterpretq_u16_s16( vqdmulhq_s16( vreinterpretq_s16_u16( is1l ), range ) );
uint16x8_t m1 = vreinterpretq_u16_s16( vqdmulhq_s16( vreinterpretq_s16_u16( is1h ), range ) );
uint8x8_t p00 = vmovn_u16( m0 );
uint8x8_t p01 = vmovn_u16( m1 );
uint8x16_t p0 = vcombine_u8( p00, p01 );
uint32x4_t p1 = vaddq_u32( vshrq_n_u32( vreinterpretq_u32_u8( p0 ), 6 ), vshrq_n_u32( vreinterpretq_u32_u8( p0 ), 12 ) );
uint32x4_t p2 = vaddq_u32( vshrq_n_u32( vreinterpretq_u32_u8( p0 ), 18 ), vreinterpretq_u32_u8( p0 ) );
uint32x4_t p3 = vaddq_u32( p1, p2 );
uint16x4x2_t p4 = vuzp_u16( vget_low_u16( vreinterpretq_u16_u32( p3 ) ), vget_high_u16( vreinterpretq_u16_u32( p3 ) ) );
uint8x8x2_t p = vuzp_u8( vreinterpret_u8_u16( p4.val[0] ), vreinterpret_u8_u16( p4.val[0] ) );
uint32_t vp;
vst1_lane_u32( &vp, vreinterpret_u32_u8( p.val[0] ), 0 );
return uint64_t( ( uint64_t( to565( minr, ming, minb ) ) << 16 ) | to565( maxr, maxg, maxb ) | ( uint64_t( vp ) << 32 ) );
# else
uint32x4_t px0 = vld1q_u32( (uint32_t*)src );
uint32x4_t px1 = vld1q_u32( (uint32_t*)src + 4 );
uint32x4_t px2 = vld1q_u32( (uint32_t*)src + 8 );
uint32x4_t px3 = vld1q_u32( (uint32_t*)src + 12 );
uint32x4_t smask = vdupq_n_u32( 0xF8FCF8 );
uint32x4_t sd0 = vandq_u32( smask, px0 );
uint32x4_t sd1 = vandq_u32( smask, px1 );
uint32x4_t sd2 = vandq_u32( smask, px2 );
uint32x4_t sd3 = vandq_u32( smask, px3 );
uint32x4_t sc = vdupq_n_u32( sd0[0] );
uint32x4_t sc0 = vceqq_u32( sd0, sc );
uint32x4_t sc1 = vceqq_u32( sd1, sc );
uint32x4_t sc2 = vceqq_u32( sd2, sc );
uint32x4_t sc3 = vceqq_u32( sd3, sc );
uint32x4_t sm0 = vandq_u32( sc0, sc1 );
uint32x4_t sm1 = vandq_u32( sc2, sc3 );
int64x2_t sm = vreinterpretq_s64_u32( vandq_u32( sm0, sm1 ) );
if( sm[0] == -1 && sm[1] == -1 )
{
return uint64_t( to565( src[0], src[1], src[2] ) ) << 16;
}
uint32x4_t mask = vdupq_n_u32( 0xFFFFFF );
uint8x16_t l0 = vreinterpretq_u8_u32( vandq_u32( mask, px0 ) );
uint8x16_t l1 = vreinterpretq_u8_u32( vandq_u32( mask, px1 ) );
uint8x16_t l2 = vreinterpretq_u8_u32( vandq_u32( mask, px2 ) );
uint8x16_t l3 = vreinterpretq_u8_u32( vandq_u32( mask, px3 ) );
uint8x16_t min0 = vminq_u8( l0, l1 );
uint8x16_t min1 = vminq_u8( l2, l3 );
uint8x16_t min2 = vminq_u8( min0, min1 );
uint8x16_t max0 = vmaxq_u8( l0, l1 );
uint8x16_t max1 = vmaxq_u8( l2, l3 );
uint8x16_t max2 = vmaxq_u8( max0, max1 );
uint8x16_t min3 = vreinterpretq_u8_u32( vrev64q_u32( vreinterpretq_u32_u8( min2 ) ) );
uint8x16_t max3 = vreinterpretq_u8_u32( vrev64q_u32( vreinterpretq_u32_u8( max2 ) ) );
uint8x16_t min4 = vminq_u8( min2, min3 );
uint8x16_t max4 = vmaxq_u8( max2, max3 );
uint8x16_t min5 = vcombine_u8( vget_high_u8( min4 ), vget_low_u8( min4 ) );
uint8x16_t max5 = vcombine_u8( vget_high_u8( max4 ), vget_low_u8( max4 ) );
uint8x16_t rmin = vminq_u8( min4, min5 );
uint8x16_t rmax = vmaxq_u8( max4, max5 );
uint8x16_t range1 = vsubq_u8( rmax, rmin );
uint8x8_t range2 = vget_low_u8( range1 );
uint8x8x2_t range3 = vzip_u8( range2, vdup_n_u8( 0 ) );
uint16x4_t range4 = vreinterpret_u16_u8( range3.val[0] );
uint16_t vrange1;
uint16x4_t range5 = vpadd_u16( range4, range4 );
uint16x4_t range6 = vpadd_u16( range5, range5 );
vst1_lane_u16( &vrange1, range6, 0 );
uint32_t vrange2 = ( 2 << 16 ) / uint32_t( vrange1 + 1 );
uint16x8_t range = vdupq_n_u16( vrange2 );
uint8x16_t inset = vshrq_n_u8( range1, 4 );
uint8x16_t min = vaddq_u8( rmin, inset );
uint8x16_t max = vsubq_u8( rmax, inset );
uint8x16_t c0 = vsubq_u8( l0, rmin );
uint8x16_t c1 = vsubq_u8( l1, rmin );
uint8x16_t c2 = vsubq_u8( l2, rmin );
uint8x16_t c3 = vsubq_u8( l3, rmin );
uint16x8_t is0 = vpaddlq_u8( c0 );
uint16x8_t is1 = vpaddlq_u8( c1 );
uint16x8_t is2 = vpaddlq_u8( c2 );
uint16x8_t is3 = vpaddlq_u8( c3 );
uint16x4_t is4 = vpadd_u16( vget_low_u16( is0 ), vget_high_u16( is0 ) );
uint16x4_t is5 = vpadd_u16( vget_low_u16( is1 ), vget_high_u16( is1 ) );
uint16x4_t is6 = vpadd_u16( vget_low_u16( is2 ), vget_high_u16( is2 ) );
uint16x4_t is7 = vpadd_u16( vget_low_u16( is3 ), vget_high_u16( is3 ) );
uint16x8_t s0 = vcombine_u16( is4, is5 );
uint16x8_t s1 = vcombine_u16( is6, is7 );
uint16x8_t m0 = vreinterpretq_u16_s16( vqdmulhq_s16( vreinterpretq_s16_u16( s0 ), vreinterpretq_s16_u16( range ) ) );
uint16x8_t m1 = vreinterpretq_u16_s16( vqdmulhq_s16( vreinterpretq_s16_u16( s1 ), vreinterpretq_s16_u16( range ) ) );
uint8x8_t p00 = vmovn_u16( m0 );
uint8x8_t p01 = vmovn_u16( m1 );
uint8x16_t p0 = vcombine_u8( p00, p01 );
uint32x4_t p1 = vaddq_u32( vshrq_n_u32( vreinterpretq_u32_u8( p0 ), 6 ), vshrq_n_u32( vreinterpretq_u32_u8( p0 ), 12 ) );
uint32x4_t p2 = vaddq_u32( vshrq_n_u32( vreinterpretq_u32_u8( p0 ), 18 ), vreinterpretq_u32_u8( p0 ) );
uint32x4_t p3 = vaddq_u32( p1, p2 );
uint16x4x2_t p4 = vuzp_u16( vget_low_u16( vreinterpretq_u16_u32( p3 ) ), vget_high_u16( vreinterpretq_u16_u32( p3 ) ) );
uint8x8x2_t p = vuzp_u8( vreinterpret_u8_u16( p4.val[0] ), vreinterpret_u8_u16( p4.val[0] ) );
uint32_t vmin, vmax, vp;
vst1q_lane_u32( &vmin, vreinterpretq_u32_u8( min ), 0 );
vst1q_lane_u32( &vmax, vreinterpretq_u32_u8( max ), 0 );
vst1_lane_u32( &vp, vreinterpret_u32_u8( p.val[0] ), 0 );
return uint64_t( ( uint64_t( to565( vmin ) ) << 16 ) | to565( vmax ) | ( uint64_t( vp ) << 32 ) );
# endif
#else
uint32_t ref;
memcpy( &ref, src, 4 );
uint32_t refMask = ref & 0xF8FCF8;
auto stmp = src + 4;
for( int i=1; i<16; i++ )
{
uint32_t px;
memcpy( &px, stmp, 4 );
if( ( px & 0xF8FCF8 ) != refMask ) break;
stmp += 4;
}
if( stmp == src + 64 )
{
return uint64_t( to565( ref ) ) << 16;
}
uint8_t min[3] = { src[0], src[1], src[2] };
uint8_t max[3] = { src[0], src[1], src[2] };
auto tmp = src + 4;
for( int i=1; i<16; i++ )
{
for( int j=0; j<3; j++ )
{
if( tmp[j] < min[j] ) min[j] = tmp[j];
else if( tmp[j] > max[j] ) max[j] = tmp[j];
}
tmp += 4;
}
const uint32_t range = DivTable[max[0] - min[0] + max[1] - min[1] + max[2] - min[2]];
const uint32_t rmin = min[0] + min[1] + min[2];
for( int i=0; i<3; i++ )
{
const uint8_t inset = ( max[i] - min[i] ) >> 4;
min[i] += inset;
max[i] -= inset;
}
uint32_t data = 0;
for( int i=0; i<16; i++ )
{
const uint32_t c = src[0] + src[1] + src[2] - rmin;
const uint8_t idx = ( c * range ) >> 16;
data |= idx << (i*2);
src += 4;
}
return uint64_t( ( uint64_t( to565( min[0], min[1], min[2] ) ) << 16 ) | to565( max[0], max[1], max[2] ) | ( uint64_t( data ) << 32 ) );
#endif
}
#ifdef __AVX2__
static tracy_force_inline void ProcessRGB_AVX( const uint8_t* src, char*& dst )
{
__m256i px0 = _mm256_loadu_si256(((__m256i*)src) + 0);
__m256i px1 = _mm256_loadu_si256(((__m256i*)src) + 1);
__m256i px2 = _mm256_loadu_si256(((__m256i*)src) + 2);
__m256i px3 = _mm256_loadu_si256(((__m256i*)src) + 3);
__m256i smask = _mm256_set1_epi32( 0xF8FCF8 );
__m256i sd0 = _mm256_and_si256( px0, smask );
__m256i sd1 = _mm256_and_si256( px1, smask );
__m256i sd2 = _mm256_and_si256( px2, smask );
__m256i sd3 = _mm256_and_si256( px3, smask );
__m256i sc = _mm256_shuffle_epi32(sd0, _MM_SHUFFLE(0, 0, 0, 0));
__m256i sc0 = _mm256_cmpeq_epi8( sd0, sc );
__m256i sc1 = _mm256_cmpeq_epi8( sd1, sc );
__m256i sc2 = _mm256_cmpeq_epi8( sd2, sc );
__m256i sc3 = _mm256_cmpeq_epi8( sd3, sc );
__m256i sm0 = _mm256_and_si256( sc0, sc1 );
__m256i sm1 = _mm256_and_si256( sc2, sc3 );
__m256i sm = _mm256_and_si256( sm0, sm1 );
const int64_t solid0 = 1 - _mm_testc_si128( _mm256_castsi256_si128( sm ), _mm_set1_epi32( -1 ) );
const int64_t solid1 = 1 - _mm_testc_si128( _mm256_extracti128_si256( sm, 1 ), _mm_set1_epi32( -1 ) );
if( solid0 + solid1 == 0 )
{
const auto c0 = uint64_t( to565( src[0], src[1], src[2] ) ) << 16;
const auto c1 = uint64_t( to565( src[16], src[17], src[18] ) ) << 16;
memcpy( dst, &c0, 8 );
memcpy( dst+8, &c1, 8 );
dst += 16;
return;
}
__m256i amask = _mm256_set1_epi32( 0xFFFFFF );
px0 = _mm256_and_si256( px0, amask );
px1 = _mm256_and_si256( px1, amask );
px2 = _mm256_and_si256( px2, amask );
px3 = _mm256_and_si256( px3, amask );
__m256i min0 = _mm256_min_epu8( px0, px1 );
__m256i min1 = _mm256_min_epu8( px2, px3 );
__m256i min2 = _mm256_min_epu8( min0, min1 );
__m256i max0 = _mm256_max_epu8( px0, px1 );
__m256i max1 = _mm256_max_epu8( px2, px3 );
__m256i max2 = _mm256_max_epu8( max0, max1 );
__m256i min3 = _mm256_shuffle_epi32( min2, _MM_SHUFFLE( 2, 3, 0, 1 ) );
__m256i max3 = _mm256_shuffle_epi32( max2, _MM_SHUFFLE( 2, 3, 0, 1 ) );
__m256i min4 = _mm256_min_epu8( min2, min3 );
__m256i max4 = _mm256_max_epu8( max2, max3 );
__m256i min5 = _mm256_shuffle_epi32( min4, _MM_SHUFFLE( 0, 0, 2, 2 ) );
__m256i max5 = _mm256_shuffle_epi32( max4, _MM_SHUFFLE( 0, 0, 2, 2 ) );
__m256i rmin = _mm256_min_epu8( min4, min5 );
__m256i rmax = _mm256_max_epu8( max4, max5 );
__m256i range1 = _mm256_subs_epu8( rmax, rmin );
__m256i range2 = _mm256_sad_epu8( rmax, rmin );
uint16_t vrange0 = DivTable[_mm256_cvtsi256_si32( range2 ) >> 1];
uint16_t vrange1 = DivTable[_mm256_extract_epi16( range2, 8 ) >> 1];
__m256i range00 = _mm256_set1_epi16( vrange0 );
__m256i range = _mm256_inserti128_si256( range00, _mm_set1_epi16( vrange1 ), 1 );
__m256i inset1 = _mm256_srli_epi16( range1, 4 );
__m256i inset = _mm256_and_si256( inset1, _mm256_set1_epi8( 0xF ) );
__m256i min = _mm256_adds_epu8( rmin, inset );
__m256i max = _mm256_subs_epu8( rmax, inset );
__m256i c0 = _mm256_subs_epu8( px0, rmin );
__m256i c1 = _mm256_subs_epu8( px1, rmin );
__m256i c2 = _mm256_subs_epu8( px2, rmin );
__m256i c3 = _mm256_subs_epu8( px3, rmin );
__m256i is0 = _mm256_maddubs_epi16( c0, _mm256_set1_epi8( 1 ) );
__m256i is1 = _mm256_maddubs_epi16( c1, _mm256_set1_epi8( 1 ) );
__m256i is2 = _mm256_maddubs_epi16( c2, _mm256_set1_epi8( 1 ) );
__m256i is3 = _mm256_maddubs_epi16( c3, _mm256_set1_epi8( 1 ) );
__m256i s0 = _mm256_hadd_epi16( is0, is1 );
__m256i s1 = _mm256_hadd_epi16( is2, is3 );
__m256i m0 = _mm256_mulhi_epu16( s0, range );
__m256i m1 = _mm256_mulhi_epu16( s1, range );
__m256i p0 = _mm256_packus_epi16( m0, m1 );
__m256i p1 = _mm256_or_si256( _mm256_srai_epi32( p0, 6 ), _mm256_srai_epi32( p0, 12 ) );
__m256i p2 = _mm256_or_si256( _mm256_srai_epi32( p0, 18 ), p0 );
__m256i p3 = _mm256_or_si256( p1, p2 );
__m256i p =_mm256_shuffle_epi8( p3, _mm256_set1_epi32( 0x0C080400 ) );
__m256i mm0 = _mm256_unpacklo_epi8( _mm256_setzero_si256(), min );
__m256i mm1 = _mm256_unpacklo_epi8( _mm256_setzero_si256(), max );
__m256i mm2 = _mm256_unpacklo_epi64( mm1, mm0 );
__m256i mmr = _mm256_slli_epi64( _mm256_srli_epi64( mm2, 11 ), 11 );
__m256i mmg = _mm256_slli_epi64( _mm256_srli_epi64( mm2, 26 ), 5 );
__m256i mmb = _mm256_srli_epi64( _mm256_slli_epi64( mm2, 16 ), 59 );
__m256i mm3 = _mm256_or_si256( mmr, mmg );
__m256i mm4 = _mm256_or_si256( mm3, mmb );
__m256i mm5 = _mm256_shuffle_epi8( mm4, _mm256_set1_epi32( 0x09080100 ) );
__m256i d0 = _mm256_unpacklo_epi32( mm5, p );
__m256i d1 = _mm256_permute4x64_epi64( d0, _MM_SHUFFLE( 3, 2, 2, 0 ) );
__m128i d2 = _mm256_castsi256_si128( d1 );
__m128i mask = _mm_set_epi64x( 0xFFFF0000 | -solid1, 0xFFFF0000 | -solid0 );
__m128i d3 = _mm_and_si128( d2, mask );
_mm_storeu_si128( (__m128i*)dst, d3 );
dst += 16;
}
#endif
void CompressImageDxt1( const char* src, char* dst, int w, int h )
{
assert( (w % 4) == 0 && (h % 4) == 0 );
#ifdef __AVX2__
if( w%8 == 0 )
{
uint32_t buf[8*4];
int i = 0;
auto blocks = w * h / 32;
do
{
auto tmp = (char*)buf;
memcpy( tmp, src, 8*4 );
memcpy( tmp + 8*4, src + w * 4, 8*4 );
memcpy( tmp + 16*4, src + w * 8, 8*4 );
memcpy( tmp + 24*4, src + w * 12, 8*4 );
src += 8*4;
if( ++i == w/8 )
{
src += w * 3 * 4;
i = 0;
}
ProcessRGB_AVX( (uint8_t*)buf, dst );
}
while( --blocks );
}
else
#endif
{
uint32_t buf[4*4];
int i = 0;
auto ptr = dst;
auto blocks = w * h / 16;
do
{
auto tmp = (char*)buf;
memcpy( tmp, src, 4*4 );
memcpy( tmp + 4*4, src + w * 4, 4*4 );
memcpy( tmp + 8*4, src + w * 8, 4*4 );
memcpy( tmp + 12*4, src + w * 12, 4*4 );
src += 4*4;
if( ++i == w/4 )
{
src += w * 3 * 4;
i = 0;
}
const auto c = ProcessRGB( (uint8_t*)buf );
memcpy( ptr, &c, sizeof( uint64_t ) );
ptr += sizeof( uint64_t );
}
while( --blocks );
}
}
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/client/TracyAlloc.cpp | #include "../common/TracyAlloc.hpp"
#ifdef TRACY_USE_RPMALLOC
#include <atomic>
#include "../common/TracyForceInline.hpp"
#include "../common/TracyYield.hpp"
namespace tracy
{
extern thread_local bool RpThreadInitDone;
extern std::atomic<int> RpInitDone;
extern std::atomic<int> RpInitLock;
tracy_no_inline static void InitRpmallocPlumbing()
{
const auto done = RpInitDone.load( std::memory_order_acquire );
if( !done )
{
int expected = 0;
while( !RpInitLock.compare_exchange_weak( expected, 1, std::memory_order_release, std::memory_order_relaxed ) ) { expected = 0; YieldThread(); }
const auto done = RpInitDone.load( std::memory_order_acquire );
if( !done )
{
rpmalloc_initialize();
RpInitDone.store( 1, std::memory_order_release );
}
RpInitLock.store( 0, std::memory_order_release );
}
rpmalloc_thread_initialize();
RpThreadInitDone = true;
}
TRACY_API void InitRpmalloc()
{
if( !RpThreadInitDone ) InitRpmallocPlumbing();
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyC.h | #ifndef __TRACYC_HPP__
#define __TRACYC_HPP__
#include <stddef.h>
#include <stdint.h>
#include "../client/TracyCallstack.h"
#include "../common/TracyApi.h"
#ifdef __cplusplus
extern "C" {
#endif
TRACY_API void ___tracy_set_thread_name( const char* name );
#define TracyCSetThreadName( name ) ___tracy_set_thread_name( name );
#ifndef TRACY_ENABLE
typedef const void* TracyCZoneCtx;
#define TracyCZone(c,x)
#define TracyCZoneN(c,x,y)
#define TracyCZoneC(c,x,y)
#define TracyCZoneNC(c,x,y,z)
#define TracyCZoneEnd(c)
#define TracyCZoneText(c,x,y)
#define TracyCZoneName(c,x,y)
#define TracyCZoneColor(c,x)
#define TracyCZoneValue(c,x)
#define TracyCAlloc(x,y)
#define TracyCFree(x)
#define TracyCSecureAlloc(x,y)
#define TracyCSecureFree(x)
#define TracyCAllocN(x,y,z)
#define TracyCFreeN(x,y)
#define TracyCSecureAllocN(x,y,z)
#define TracyCSecureFreeN(x,y)
#define TracyCFrameMark
#define TracyCFrameMarkNamed(x)
#define TracyCFrameMarkStart(x)
#define TracyCFrameMarkEnd(x)
#define TracyCFrameImage(x,y,z,w,a)
#define TracyCPlot(x,y)
#define TracyCMessage(x,y)
#define TracyCMessageL(x)
#define TracyCMessageC(x,y,z)
#define TracyCMessageLC(x,y)
#define TracyCAppInfo(x,y)
#define TracyCZoneS(x,y,z)
#define TracyCZoneNS(x,y,z,w)
#define TracyCZoneCS(x,y,z,w)
#define TracyCZoneNCS(x,y,z,w,a)
#define TracyCAllocS(x,y,z)
#define TracyCFreeS(x,y)
#define TracyCSecureAllocS(x,y,z)
#define TracyCSecureFreeS(x,y)
#define TracyCAllocNS(x,y,z,w)
#define TracyCFreeNS(x,y,z)
#define TracyCSecureAllocNS(x,y,z,w)
#define TracyCSecureFreeNS(x,y,z)
#define TracyCMessageS(x,y,z)
#define TracyCMessageLS(x,y)
#define TracyCMessageCS(x,y,z,w)
#define TracyCMessageLCS(x,y,z)
#define TracyCIsConnected 0
#ifdef TRACY_FIBERS
# define TracyCFiberEnter(fiber)
# define TracyCFiberLeave
#endif
#else
#ifndef TracyConcat
# define TracyConcat(x,y) TracyConcatIndirect(x,y)
#endif
#ifndef TracyConcatIndirect
# define TracyConcatIndirect(x,y) x##y
#endif
struct ___tracy_source_location_data
{
const char* name;
const char* function;
const char* file;
uint32_t line;
uint32_t color;
};
struct ___tracy_c_zone_context
{
uint32_t id;
int active;
};
struct ___tracy_gpu_time_data
{
int64_t gpuTime;
uint16_t queryId;
uint8_t context;
};
struct ___tracy_gpu_zone_begin_data {
uint64_t srcloc;
uint16_t queryId;
uint8_t context;
};
struct ___tracy_gpu_zone_begin_callstack_data {
uint64_t srcloc;
int depth;
uint16_t queryId;
uint8_t context;
};
struct ___tracy_gpu_zone_end_data {
uint16_t queryId;
uint8_t context;
};
struct ___tracy_gpu_new_context_data {
int64_t gpuTime;
float period;
uint8_t context;
uint8_t flags;
uint8_t type;
};
struct ___tracy_gpu_context_name_data {
uint8_t context;
const char* name;
uint16_t len;
};
struct ___tracy_gpu_calibration_data {
int64_t gpuTime;
int64_t cpuDelta;
uint8_t context;
};
// Some containers don't support storing const types.
// This struct, as visible to user, is immutable, so treat it as if const was declared here.
typedef /*const*/ struct ___tracy_c_zone_context TracyCZoneCtx;
#ifdef TRACY_MANUAL_LIFETIME
TRACY_API void ___tracy_startup_profiler(void);
TRACY_API void ___tracy_shutdown_profiler(void);
#endif
TRACY_API uint64_t ___tracy_alloc_srcloc( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz );
TRACY_API uint64_t ___tracy_alloc_srcloc_name( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz );
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin( const struct ___tracy_source_location_data* srcloc, int active );
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin_callstack( const struct ___tracy_source_location_data* srcloc, int depth, int active );
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin_alloc( uint64_t srcloc, int active );
TRACY_API TracyCZoneCtx ___tracy_emit_zone_begin_alloc_callstack( uint64_t srcloc, int depth, int active );
TRACY_API void ___tracy_emit_zone_end( TracyCZoneCtx ctx );
TRACY_API void ___tracy_emit_zone_text( TracyCZoneCtx ctx, const char* txt, size_t size );
TRACY_API void ___tracy_emit_zone_name( TracyCZoneCtx ctx, const char* txt, size_t size );
TRACY_API void ___tracy_emit_zone_color( TracyCZoneCtx ctx, uint32_t color );
TRACY_API void ___tracy_emit_zone_value( TracyCZoneCtx ctx, uint64_t value );
TRACY_API void ___tracy_emit_gpu_zone_begin( const struct ___tracy_gpu_zone_begin_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_callstack( const struct ___tracy_gpu_zone_begin_callstack_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc( const struct ___tracy_gpu_zone_begin_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc_callstack( const struct ___tracy_gpu_zone_begin_callstack_data );
TRACY_API void ___tracy_emit_gpu_zone_end( const struct ___tracy_gpu_zone_end_data data );
TRACY_API void ___tracy_emit_gpu_time( const struct ___tracy_gpu_time_data );
TRACY_API void ___tracy_emit_gpu_new_context( const struct ___tracy_gpu_new_context_data );
TRACY_API void ___tracy_emit_gpu_context_name( const struct ___tracy_gpu_context_name_data );
TRACY_API void ___tracy_emit_gpu_calibration( const struct ___tracy_gpu_calibration_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_serial( const struct ___tracy_gpu_zone_begin_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_callstack_serial( const struct ___tracy_gpu_zone_begin_callstack_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc_serial( const struct ___tracy_gpu_zone_begin_data );
TRACY_API void ___tracy_emit_gpu_zone_begin_alloc_callstack_serial( const struct ___tracy_gpu_zone_begin_callstack_data );
TRACY_API void ___tracy_emit_gpu_zone_end_serial( const struct ___tracy_gpu_zone_end_data data );
TRACY_API void ___tracy_emit_gpu_time_serial( const struct ___tracy_gpu_time_data );
TRACY_API void ___tracy_emit_gpu_new_context_serial( const struct ___tracy_gpu_new_context_data );
TRACY_API void ___tracy_emit_gpu_context_name_serial( const struct ___tracy_gpu_context_name_data );
TRACY_API void ___tracy_emit_gpu_calibration_serial( const struct ___tracy_gpu_calibration_data );
TRACY_API int ___tracy_connected(void);
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyCZone( ctx, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { NULL, __func__, __FILE__, (uint32_t)__LINE__, 0 }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyCZoneN( ctx, name, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { name, __func__, __FILE__, (uint32_t)__LINE__, 0 }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyCZoneC( ctx, color, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { NULL, __func__, __FILE__, (uint32_t)__LINE__, color }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyCZoneNC( ctx, name, color, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { name, __func__, __FILE__, (uint32_t)__LINE__, color }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active );
#else
# define TracyCZone( ctx, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { NULL, __func__, __FILE__, (uint32_t)__LINE__, 0 }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin( &TracyConcat(__tracy_source_location,__LINE__), active );
# define TracyCZoneN( ctx, name, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { name, __func__, __FILE__, (uint32_t)__LINE__, 0 }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin( &TracyConcat(__tracy_source_location,__LINE__), active );
# define TracyCZoneC( ctx, color, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { NULL, __func__, __FILE__, (uint32_t)__LINE__, color }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin( &TracyConcat(__tracy_source_location,__LINE__), active );
# define TracyCZoneNC( ctx, name, color, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { name, __func__, __FILE__, (uint32_t)__LINE__, color }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin( &TracyConcat(__tracy_source_location,__LINE__), active );
#endif
#define TracyCZoneEnd( ctx ) ___tracy_emit_zone_end( ctx );
#define TracyCZoneText( ctx, txt, size ) ___tracy_emit_zone_text( ctx, txt, size );
#define TracyCZoneName( ctx, txt, size ) ___tracy_emit_zone_name( ctx, txt, size );
#define TracyCZoneColor( ctx, color ) ___tracy_emit_zone_color( ctx, color );
#define TracyCZoneValue( ctx, value ) ___tracy_emit_zone_value( ctx, value );
TRACY_API void ___tracy_emit_memory_alloc( const void* ptr, size_t size, int secure );
TRACY_API void ___tracy_emit_memory_alloc_callstack( const void* ptr, size_t size, int depth, int secure );
TRACY_API void ___tracy_emit_memory_free( const void* ptr, int secure );
TRACY_API void ___tracy_emit_memory_free_callstack( const void* ptr, int depth, int secure );
TRACY_API void ___tracy_emit_memory_alloc_named( const void* ptr, size_t size, int secure, const char* name );
TRACY_API void ___tracy_emit_memory_alloc_callstack_named( const void* ptr, size_t size, int depth, int secure, const char* name );
TRACY_API void ___tracy_emit_memory_free_named( const void* ptr, int secure, const char* name );
TRACY_API void ___tracy_emit_memory_free_callstack_named( const void* ptr, int depth, int secure, const char* name );
TRACY_API void ___tracy_emit_message( const char* txt, size_t size, int callstack );
TRACY_API void ___tracy_emit_messageL( const char* txt, int callstack );
TRACY_API void ___tracy_emit_messageC( const char* txt, size_t size, uint32_t color, int callstack );
TRACY_API void ___tracy_emit_messageLC( const char* txt, uint32_t color, int callstack );
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyCAlloc( ptr, size ) ___tracy_emit_memory_alloc_callstack( ptr, size, TRACY_CALLSTACK, 0 )
# define TracyCFree( ptr ) ___tracy_emit_memory_free_callstack( ptr, TRACY_CALLSTACK, 0 )
# define TracyCSecureAlloc( ptr, size ) ___tracy_emit_memory_alloc_callstack( ptr, size, TRACY_CALLSTACK, 1 )
# define TracyCSecureFree( ptr ) ___tracy_emit_memory_free_callstack( ptr, TRACY_CALLSTACK, 1 )
# define TracyCAllocN( ptr, size, name ) ___tracy_emit_memory_alloc_callstack_named( ptr, size, TRACY_CALLSTACK, 0, name )
# define TracyCFreeN( ptr, name ) ___tracy_emit_memory_free_callstack_named( ptr, TRACY_CALLSTACK, 0, name )
# define TracyCSecureAllocN( ptr, size, name ) ___tracy_emit_memory_alloc_callstack_named( ptr, size, TRACY_CALLSTACK, 1, name )
# define TracyCSecureFreeN( ptr, name ) ___tracy_emit_memory_free_callstack_named( ptr, TRACY_CALLSTACK, 1, name )
# define TracyCMessage( txt, size ) ___tracy_emit_message( txt, size, TRACY_CALLSTACK );
# define TracyCMessageL( txt ) ___tracy_emit_messageL( txt, TRACY_CALLSTACK );
# define TracyCMessageC( txt, size, color ) ___tracy_emit_messageC( txt, size, color, TRACY_CALLSTACK );
# define TracyCMessageLC( txt, color ) ___tracy_emit_messageLC( txt, color, TRACY_CALLSTACK );
#else
# define TracyCAlloc( ptr, size ) ___tracy_emit_memory_alloc( ptr, size, 0 );
# define TracyCFree( ptr ) ___tracy_emit_memory_free( ptr, 0 );
# define TracyCSecureAlloc( ptr, size ) ___tracy_emit_memory_alloc( ptr, size, 1 );
# define TracyCSecureFree( ptr ) ___tracy_emit_memory_free( ptr, 1 );
# define TracyCAllocN( ptr, size, name ) ___tracy_emit_memory_alloc_named( ptr, size, 0, name );
# define TracyCFreeN( ptr, name ) ___tracy_emit_memory_free_named( ptr, 0, name );
# define TracyCSecureAllocN( ptr, size, name ) ___tracy_emit_memory_alloc_named( ptr, size, 1, name );
# define TracyCSecureFreeN( ptr, name ) ___tracy_emit_memory_free_named( ptr, 1, name );
# define TracyCMessage( txt, size ) ___tracy_emit_message( txt, size, 0 );
# define TracyCMessageL( txt ) ___tracy_emit_messageL( txt, 0 );
# define TracyCMessageC( txt, size, color ) ___tracy_emit_messageC( txt, size, color, 0 );
# define TracyCMessageLC( txt, color ) ___tracy_emit_messageLC( txt, color, 0 );
#endif
TRACY_API void ___tracy_emit_frame_mark( const char* name );
TRACY_API void ___tracy_emit_frame_mark_start( const char* name );
TRACY_API void ___tracy_emit_frame_mark_end( const char* name );
TRACY_API void ___tracy_emit_frame_image( const void* image, uint16_t w, uint16_t h, uint8_t offset, int flip );
#define TracyCFrameMark ___tracy_emit_frame_mark( 0 );
#define TracyCFrameMarkNamed( name ) ___tracy_emit_frame_mark( name );
#define TracyCFrameMarkStart( name ) ___tracy_emit_frame_mark_start( name );
#define TracyCFrameMarkEnd( name ) ___tracy_emit_frame_mark_end( name );
#define TracyCFrameImage( image, width, height, offset, flip ) ___tracy_emit_frame_image( image, width, height, offset, flip );
TRACY_API void ___tracy_emit_plot( const char* name, double val );
TRACY_API void ___tracy_emit_message_appinfo( const char* txt, size_t size );
#define TracyCPlot( name, val ) ___tracy_emit_plot( name, val );
#define TracyCAppInfo( txt, size ) ___tracy_emit_message_appinfo( txt, size );
#ifdef TRACY_HAS_CALLSTACK
# define TracyCZoneS( ctx, depth, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { NULL, __func__, __FILE__, (uint32_t)__LINE__, 0 }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), depth, active );
# define TracyCZoneNS( ctx, name, depth, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { name, __func__, __FILE__, (uint32_t)__LINE__, 0 }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), depth, active );
# define TracyCZoneCS( ctx, color, depth, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { NULL, __func__, __FILE__, (uint32_t)__LINE__, color }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), depth, active );
# define TracyCZoneNCS( ctx, name, color, depth, active ) static const struct ___tracy_source_location_data TracyConcat(__tracy_source_location,__LINE__) = { name, __func__, __FILE__, (uint32_t)__LINE__, color }; TracyCZoneCtx ctx = ___tracy_emit_zone_begin_callstack( &TracyConcat(__tracy_source_location,__LINE__), depth, active );
# define TracyCAllocS( ptr, size, depth ) ___tracy_emit_memory_alloc_callstack( ptr, size, depth, 0 )
# define TracyCFreeS( ptr, depth ) ___tracy_emit_memory_free_callstack( ptr, depth, 0 )
# define TracyCSecureAllocS( ptr, size, depth ) ___tracy_emit_memory_alloc_callstack( ptr, size, depth, 1 )
# define TracyCSecureFreeS( ptr, depth ) ___tracy_emit_memory_free_callstack( ptr, depth, 1 )
# define TracyCAllocNS( ptr, size, depth, name ) ___tracy_emit_memory_alloc_callstack_named( ptr, size, depth, 0, name )
# define TracyCFreeNS( ptr, depth, name ) ___tracy_emit_memory_free_callstack_named( ptr, depth, 0, name )
# define TracyCSecureAllocNS( ptr, size, depth, name ) ___tracy_emit_memory_alloc_callstack_named( ptr, size, depth, 1, name )
# define TracyCSecureFreeNS( ptr, depth, name ) ___tracy_emit_memory_free_callstack_named( ptr, depth, 1, name )
# define TracyCMessageS( txt, size, depth ) ___tracy_emit_message( txt, size, depth );
# define TracyCMessageLS( txt, depth ) ___tracy_emit_messageL( txt, depth );
# define TracyCMessageCS( txt, size, color, depth ) ___tracy_emit_messageC( txt, size, color, depth );
# define TracyCMessageLCS( txt, color, depth ) ___tracy_emit_messageLC( txt, color, depth );
#else
# define TracyCZoneS( ctx, depth, active ) TracyCZone( ctx, active )
# define TracyCZoneNS( ctx, name, depth, active ) TracyCZoneN( ctx, name, active )
# define TracyCZoneCS( ctx, color, depth, active ) TracyCZoneC( ctx, color, active )
# define TracyCZoneNCS( ctx, name, color, depth, active ) TracyCZoneNC( ctx, name, color, active )
# define TracyCAllocS( ptr, size, depth ) TracyCAlloc( ptr, size )
# define TracyCFreeS( ptr, depth ) TracyCFree( ptr )
# define TracyCSecureAllocS( ptr, size, depth ) TracyCSecureAlloc( ptr, size )
# define TracyCSecureFreeS( ptr, depth ) TracyCSecureFree( ptr )
# define TracyCAllocNS( ptr, size, depth, name ) TracyCAllocN( ptr, size, name )
# define TracyCFreeNS( ptr, depth, name ) TracyCFreeN( ptr, name )
# define TracyCSecureAllocNS( ptr, size, depth, name ) TracyCSecureAllocN( ptr, size, name )
# define TracyCSecureFreeNS( ptr, depth, name ) TracyCSecureFreeN( ptr, name )
# define TracyCMessageS( txt, size, depth ) TracyCMessage( txt, size )
# define TracyCMessageLS( txt, depth ) TracyCMessageL( txt )
# define TracyCMessageCS( txt, size, color, depth ) TracyCMessageC( txt, size, color )
# define TracyCMessageLCS( txt, color, depth ) TracyCMessageLC( txt, color )
#endif
#define TracyCIsConnected ___tracy_connected()
TRACY_API void ___tracy_fiber_enter( const char* fiber );
TRACY_API void ___tracy_fiber_leave( void );
#ifdef TRACY_FIBERS
# define TracyCFiberEnter( fiber ) ___tracy_fiber_enter( fiber );
# define TracyCFiberLeave ___tracy_fiber_leave();
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyD3D11.hpp | #ifndef __TRACYD3D11_HPP__
#define __TRACYD3D11_HPP__
#ifndef TRACY_ENABLE
#define TracyD3D11Context(device,queue) nullptr
#define TracyD3D11Destroy(ctx)
#define TracyD3D11ContextName(ctx, name, size)
#define TracyD3D11NewFrame(ctx)
#define TracyD3D11Zone(ctx, name)
#define TracyD3D11ZoneC(ctx, name, color)
#define TracyD3D11NamedZone(ctx, varname, name, active)
#define TracyD3D11NamedZoneC(ctx, varname, name, color, active)
#define TracyD3D12ZoneTransient(ctx, varname, name, active)
#define TracyD3D11ZoneS(ctx, name, depth)
#define TracyD3D11ZoneCS(ctx, name, color, depth)
#define TracyD3D11NamedZoneS(ctx, varname, name, depth, active)
#define TracyD3D11NamedZoneCS(ctx, varname, name, color, depth, active)
#define TracyD3D12ZoneTransientS(ctx, varname, name, depth, active)
#define TracyD3D11Collect(ctx)
namespace tracy
{
class D3D11ZoneScope {};
}
using TracyD3D11Ctx = void*;
#else
#include <atomic>
#include <assert.h>
#include <stdlib.h>
#include "Tracy.hpp"
#include "../client/TracyProfiler.hpp"
#include "../client/TracyCallstack.hpp"
#include "../common/TracyAlign.hpp"
#include "../common/TracyAlloc.hpp"
namespace tracy
{
class D3D11Ctx
{
friend class D3D11ZoneScope;
enum { QueryCount = 64 * 1024 };
public:
D3D11Ctx( ID3D11Device* device, ID3D11DeviceContext* devicectx )
: m_device( device )
, m_devicectx( devicectx )
, m_context( GetGpuCtxCounter().fetch_add( 1, std::memory_order_relaxed ) )
, m_head( 0 )
, m_tail( 0 )
{
assert( m_context != 255 );
for (int i = 0; i < QueryCount; i++)
{
HRESULT hr = S_OK;
D3D11_QUERY_DESC desc;
desc.MiscFlags = 0;
desc.Query = D3D11_QUERY_TIMESTAMP;
hr |= device->CreateQuery(&desc, &m_queries[i]);
desc.Query = D3D11_QUERY_TIMESTAMP_DISJOINT;
hr |= device->CreateQuery(&desc, &m_disjoints[i]);
m_disjointMap[i] = nullptr;
assert(SUCCEEDED(hr));
}
// Force query the initial GPU timestamp (pipeline stall)
D3D11_QUERY_DATA_TIMESTAMP_DISJOINT disjoint;
UINT64 timestamp;
for (int attempts = 0; attempts < 50; attempts++)
{
devicectx->Begin(m_disjoints[0]);
devicectx->End(m_queries[0]);
devicectx->End(m_disjoints[0]);
devicectx->Flush();
while (devicectx->GetData(m_disjoints[0], &disjoint, sizeof(disjoint), 0) == S_FALSE)
/* Nothing */;
if (disjoint.Disjoint)
continue;
while (devicectx->GetData(m_queries[0], ×tamp, sizeof(timestamp), 0) == S_FALSE)
/* Nothing */;
break;
}
int64_t tgpu = timestamp * (1000000000ull / disjoint.Frequency);
int64_t tcpu = Profiler::GetTime();
uint8_t flags = 0;
const float period = 1.f;
auto* item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuNewContext );
MemWrite( &item->gpuNewContext.cpuTime, tcpu );
MemWrite( &item->gpuNewContext.gpuTime, tgpu );
memset(&item->gpuNewContext.thread, 0, sizeof(item->gpuNewContext.thread));
MemWrite( &item->gpuNewContext.period, period );
MemWrite( &item->gpuNewContext.context, m_context );
MemWrite( &item->gpuNewContext.flags, flags );
MemWrite( &item->gpuNewContext.type, GpuContextType::Direct3D11 );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
~D3D11Ctx()
{
for (int i = 0; i < QueryCount; i++)
{
m_queries[i]->Release();
m_disjoints[i]->Release();
m_disjointMap[i] = nullptr;
}
}
void Name( const char* name, uint16_t len )
{
auto ptr = (char*)tracy_malloc( len );
memcpy( ptr, name, len );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuContextName );
MemWrite( &item->gpuContextNameFat.context, m_context );
MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
MemWrite( &item->gpuContextNameFat.size, len );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
void Collect()
{
ZoneScopedC( Color::Red4 );
if( m_tail == m_head ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() )
{
m_head = m_tail = 0;
return;
}
#endif
auto start = m_tail;
auto end = m_head + QueryCount;
auto cnt = (end - start) % QueryCount;
while (cnt > 1)
{
auto mid = start + cnt / 2;
bool available =
m_devicectx->GetData(m_disjointMap[mid % QueryCount], nullptr, 0, D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK &&
m_devicectx->GetData(m_queries[mid % QueryCount], nullptr, 0, D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
if (available)
{
start = mid;
}
else
{
end = mid;
}
cnt = (end - start) % QueryCount;
}
start %= QueryCount;
while (m_tail != start)
{
D3D11_QUERY_DATA_TIMESTAMP_DISJOINT disjoint;
UINT64 time;
m_devicectx->GetData(m_disjointMap[m_tail], &disjoint, sizeof(disjoint), 0);
m_devicectx->GetData(m_queries[m_tail], &time, sizeof(time), 0);
time *= (1000000000ull / disjoint.Frequency);
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuTime);
MemWrite(&item->gpuTime.gpuTime, (int64_t)time);
MemWrite(&item->gpuTime.queryId, (uint16_t)m_tail);
MemWrite(&item->gpuTime.context, m_context);
Profiler::QueueSerialFinish();
m_tail = (m_tail + 1) % QueryCount;
}
}
private:
tracy_force_inline unsigned int NextQueryId()
{
const auto id = m_head;
m_head = ( m_head + 1 ) % QueryCount;
assert( m_head != m_tail );
return id;
}
tracy_force_inline ID3D11Query* TranslateQueryId( unsigned int id )
{
return m_queries[id];
}
tracy_force_inline ID3D11Query* MapDisjointQueryId( unsigned int id, unsigned int disjointId )
{
m_disjointMap[id] = m_disjoints[disjointId];
return m_disjoints[disjointId];
}
tracy_force_inline uint8_t GetId() const
{
return m_context;
}
ID3D11Device* m_device;
ID3D11DeviceContext* m_devicectx;
ID3D11Query* m_queries[QueryCount];
ID3D11Query* m_disjoints[QueryCount];
ID3D11Query* m_disjointMap[QueryCount]; // Multiple time queries can have one disjoint query
uint8_t m_context;
unsigned int m_head;
unsigned int m_tail;
};
class D3D11ZoneScope
{
public:
tracy_force_inline D3D11ZoneScope( D3D11Ctx* ctx, const SourceLocationData* srcloc, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
ctx->m_devicectx->Begin(ctx->MapDisjointQueryId(queryId, queryId));
ctx->m_devicectx->End(ctx->TranslateQueryId(queryId));
m_disjointId = queryId;
auto* item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginSerial );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, ctx->GetId() );
Profiler::QueueSerialFinish();
}
tracy_force_inline D3D11ZoneScope( D3D11Ctx* ctx, const SourceLocationData* srcloc, int depth, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
ctx->m_devicectx->Begin(ctx->MapDisjointQueryId(queryId, queryId));
ctx->m_devicectx->End(ctx->TranslateQueryId(queryId));
m_disjointId = queryId;
auto* item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginCallstackSerial );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, ctx->GetId() );
Profiler::QueueSerialFinish();
GetProfiler().SendCallstack( depth );
}
tracy_force_inline D3D11ZoneScope(D3D11Ctx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, bool active)
#ifdef TRACY_ON_DEMAND
: m_active(active&& GetProfiler().IsConnected())
#else
: m_active(active)
#endif
{
if( !m_active ) return;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
ctx->m_devicectx->Begin(ctx->MapDisjointQueryId(queryId, queryId));
ctx->m_devicectx->End(ctx->TranslateQueryId(queryId));
m_disjointId = queryId;
const auto sourceLocation = Profiler::AllocSourceLocation(line, source, sourceSz, function, functionSz, name, nameSz);
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, sourceLocation);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, static_cast<uint16_t>(queryId));
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline D3D11ZoneScope(D3D11Ctx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, int depth, bool active)
#ifdef TRACY_ON_DEMAND
: m_active(active&& GetProfiler().IsConnected())
#else
: m_active(active)
#endif
{
if( !m_active ) return;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
ctx->m_devicectx->Begin(ctx->MapDisjointQueryId(queryId, queryId));
ctx->m_devicectx->End(ctx->TranslateQueryId(queryId));
m_disjointId = queryId;
const auto sourceLocation = Profiler::AllocSourceLocation(line, source, sourceSz, function, functionSz, name, nameSz);
auto* item = Profiler::QueueSerialCallstack(Callstack(depth));
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocCallstackSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, sourceLocation);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, static_cast<uint16_t>(queryId));
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline ~D3D11ZoneScope()
{
if( !m_active ) return;
const auto queryId = m_ctx->NextQueryId();
m_ctx->m_devicectx->End(m_ctx->TranslateQueryId(queryId));
m_ctx->m_devicectx->End(m_ctx->MapDisjointQueryId(queryId, m_disjointId));
auto* item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneEndSerial );
MemWrite( &item->gpuZoneEnd.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneEnd.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneEnd.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneEnd.context, m_ctx->GetId() );
Profiler::QueueSerialFinish();
}
private:
const bool m_active;
D3D11Ctx* m_ctx;
unsigned int m_disjointId;
};
static inline D3D11Ctx* CreateD3D11Context( ID3D11Device* device, ID3D11DeviceContext* devicectx )
{
auto ctx = (D3D11Ctx*)tracy_malloc( sizeof( D3D11Ctx ) );
new(ctx) D3D11Ctx( device, devicectx );
return ctx;
}
static inline void DestroyD3D11Context( D3D11Ctx* ctx )
{
ctx->~D3D11Ctx();
tracy_free( ctx );
}
}
using TracyD3D11Ctx = tracy::D3D11Ctx*;
#define TracyD3D11Context( device, devicectx ) tracy::CreateD3D11Context( device, devicectx );
#define TracyD3D11Destroy(ctx) tracy::DestroyD3D11Context(ctx);
#define TracyD3D11ContextName(ctx, name, size) ctx->Name(name, size);
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyD3D11Zone( ctx, name ) TracyD3D11NamedZoneS( ctx, ___tracy_gpu_zone, name, TRACY_CALLSTACK, true )
# define TracyD3D11ZoneC( ctx, name, color ) TracyD3D11NamedZoneCS( ctx, ___tracy_gpu_zone, name, color, TRACY_CALLSTACK, true )
# define TracyD3D11NamedZone( ctx, varname, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::D3D11ZoneScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyD3D11NamedZoneC( ctx, varname, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::D3D11ZoneScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyD3D11ZoneTransient(ctx, varname, name, active) TracyD3D11ZoneTransientS(ctx, varname, cmdList, name, TRACY_CALLSTACK, active)
#else
# define TracyD3D11Zone( ctx, name ) TracyD3D11NamedZone( ctx, ___tracy_gpu_zone, name, true )
# define TracyD3D11ZoneC( ctx, name, color ) TracyD3D11NamedZoneC( ctx, ___tracy_gpu_zone, name, color, true )
# define TracyD3D11NamedZone( ctx, varname, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::D3D11ZoneScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), active );
# define TracyD3D11NamedZoneC( ctx, varname, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::D3D11ZoneScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), active );
# define TracyD3D11ZoneTransient(ctx, varname, name, active) tracy::D3D11ZoneScope varname{ ctx, __LINE__, __FILE__, strlen(__FILE__), __FUNCTION__, strlen(__FUNCTION__), name, strlen(name), active };
#endif
#ifdef TRACY_HAS_CALLSTACK
# define TracyD3D11ZoneS( ctx, name, depth ) TracyD3D11NamedZoneS( ctx, ___tracy_gpu_zone, name, depth, true )
# define TracyD3D11ZoneCS( ctx, name, color, depth ) TracyD3D11NamedZoneCS( ctx, ___tracy_gpu_zone, name, color, depth, true )
# define TracyD3D11NamedZoneS( ctx, varname, name, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::D3D11ZoneScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), depth, active );
# define TracyD3D11NamedZoneCS( ctx, varname, name, color, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::D3D11ZoneScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), depth, active );
# define TracyD3D11ZoneTransientS(ctx, varname, name, depth, active) tracy::D3D11ZoneScope varname{ ctx, __LINE__, __FILE__, strlen(__FILE__), __FUNCTION__, strlen(__FUNCTION__), name, strlen(name), depth, active };
#else
# define TracyD3D11ZoneS( ctx, name, depth, active ) TracyD3D11Zone( ctx, name )
# define TracyD3D11ZoneCS( ctx, name, color, depth, active ) TracyD3D11ZoneC( name, color )
# define TracyD3D11NamedZoneS( ctx, varname, name, depth, active ) TracyD3D11NamedZone( ctx, varname, name, active )
# define TracyD3D11NamedZoneCS( ctx, varname, name, color, depth, active ) TracyD3D11NamedZoneC( ctx, varname, name, color, active )
# define TracyD3D11ZoneTransientS(ctx, varname, name, depth, active) TracyD3D12ZoneTransient(ctx, varname, name, active)
#endif
#define TracyD3D11Collect( ctx ) ctx->Collect();
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyLua.hpp | #ifndef __TRACYLUA_HPP__
#define __TRACYLUA_HPP__
// Include this file after you include lua headers.
#ifndef TRACY_ENABLE
#include <string.h>
namespace tracy
{
namespace detail
{
static inline int noop( lua_State* L ) { return 0; }
}
static inline void LuaRegister( lua_State* L )
{
lua_newtable( L );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneBegin" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneBeginN" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneBeginS" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneBeginNS" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneEnd" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneText" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "ZoneName" );
lua_pushcfunction( L, detail::noop );
lua_setfield( L, -2, "Message" );
lua_setglobal( L, "tracy" );
}
static inline char* FindEnd( char* ptr )
{
unsigned int cnt = 1;
while( cnt != 0 )
{
if( *ptr == '(' ) cnt++;
else if( *ptr == ')' ) cnt--;
ptr++;
}
return ptr;
}
static inline void LuaRemove( char* script )
{
while( *script )
{
if( strncmp( script, "tracy.", 6 ) == 0 )
{
if( strncmp( script + 6, "Zone", 4 ) == 0 )
{
if( strncmp( script + 10, "End()", 5 ) == 0 )
{
memset( script, ' ', 15 );
script += 15;
}
else if( strncmp( script + 10, "Begin()", 7 ) == 0 )
{
memset( script, ' ', 17 );
script += 17;
}
else if( strncmp( script + 10, "Text(", 5 ) == 0 )
{
auto end = FindEnd( script + 15 );
memset( script, ' ', end - script );
script = end;
}
else if( strncmp( script + 10, "Name(", 5 ) == 0 )
{
auto end = FindEnd( script + 15 );
memset( script, ' ', end - script );
script = end;
}
else if( strncmp( script + 10, "BeginN(", 7 ) == 0 )
{
auto end = FindEnd( script + 17 );
memset( script, ' ', end - script );
script = end;
}
else if( strncmp( script + 10, "BeginS(", 7 ) == 0 )
{
auto end = FindEnd( script + 17 );
memset( script, ' ', end - script );
script = end;
}
else if( strncmp( script + 10, "BeginNS(", 8 ) == 0 )
{
auto end = FindEnd( script + 18 );
memset( script, ' ', end - script );
script = end;
}
else
{
script += 10;
}
}
else if( strncmp( script + 6, "Message(", 8 ) == 0 )
{
auto end = FindEnd( script + 14 );
memset( script, ' ', end - script );
script = end;
}
else
{
script += 6;
}
}
else
{
script++;
}
}
}
}
#else
#include <assert.h>
#include <limits>
#include "../common/TracyColor.hpp"
#include "../common/TracyAlign.hpp"
#include "../common/TracyForceInline.hpp"
#include "../common/TracySystem.hpp"
#include "../client/TracyProfiler.hpp"
namespace tracy
{
#ifdef TRACY_ON_DEMAND
TRACY_API LuaZoneState& GetLuaZoneState();
#endif
namespace detail
{
#ifdef TRACY_HAS_CALLSTACK
static tracy_force_inline void SendLuaCallstack( lua_State* L, uint32_t depth )
{
assert( depth <= 64 );
lua_Debug dbg[64];
const char* func[64];
uint32_t fsz[64];
uint32_t ssz[64];
uint8_t cnt;
uint16_t spaceNeeded = sizeof( cnt );
for( cnt=0; cnt<depth; cnt++ )
{
if( lua_getstack( L, cnt+1, dbg+cnt ) == 0 ) break;
lua_getinfo( L, "Snl", dbg+cnt );
func[cnt] = dbg[cnt].name ? dbg[cnt].name : dbg[cnt].short_src;
fsz[cnt] = uint32_t( strlen( func[cnt] ) );
ssz[cnt] = uint32_t( strlen( dbg[cnt].source ) );
spaceNeeded += fsz[cnt] + ssz[cnt];
}
spaceNeeded += cnt * ( 4 + 2 + 2 ); // source line, function string length, source string length
auto ptr = (char*)tracy_malloc( spaceNeeded + 2 );
auto dst = ptr;
memcpy( dst, &spaceNeeded, 2 ); dst += 2;
memcpy( dst, &cnt, 1 ); dst++;
for( uint8_t i=0; i<cnt; i++ )
{
const uint32_t line = dbg[i].currentline;
memcpy( dst, &line, 4 ); dst += 4;
assert( fsz[i] <= std::numeric_limits<uint16_t>::max() );
memcpy( dst, fsz+i, 2 ); dst += 2;
memcpy( dst, func[i], fsz[i] ); dst += fsz[i];
assert( ssz[i] <= std::numeric_limits<uint16_t>::max() );
memcpy( dst, ssz+i, 2 ); dst += 2;
memcpy( dst, dbg[i].source, ssz[i] ), dst += ssz[i];
}
assert( dst - ptr == spaceNeeded + 2 );
TracyQueuePrepare( QueueType::CallstackAlloc );
MemWrite( &item->callstackAllocFat.ptr, (uint64_t)ptr );
MemWrite( &item->callstackAllocFat.nativePtr, (uint64_t)Callstack( depth ) );
TracyQueueCommit( callstackAllocFatThread );
}
static inline int LuaZoneBeginS( lua_State* L )
{
#ifdef TRACY_ON_DEMAND
const auto zoneCnt = GetLuaZoneState().counter++;
if( zoneCnt != 0 && !GetLuaZoneState().active ) return 0;
GetLuaZoneState().active = GetProfiler().IsConnected();
if( !GetLuaZoneState().active ) return 0;
#endif
#ifdef TRACY_CALLSTACK
const uint32_t depth = TRACY_CALLSTACK;
#else
const auto depth = uint32_t( lua_tointeger( L, 1 ) );
#endif
SendLuaCallstack( L, depth );
lua_Debug dbg;
lua_getstack( L, 1, &dbg );
lua_getinfo( L, "Snl", &dbg );
const auto srcloc = Profiler::AllocSourceLocation( dbg.currentline, dbg.source, dbg.name ? dbg.name : dbg.short_src );
TracyQueuePrepare( QueueType::ZoneBeginAllocSrcLocCallstack );
MemWrite( &item->zoneBegin.time, Profiler::GetTime() );
MemWrite( &item->zoneBegin.srcloc, srcloc );
TracyQueueCommit( zoneBeginThread );
return 0;
}
static inline int LuaZoneBeginNS( lua_State* L )
{
#ifdef TRACY_ON_DEMAND
const auto zoneCnt = GetLuaZoneState().counter++;
if( zoneCnt != 0 && !GetLuaZoneState().active ) return 0;
GetLuaZoneState().active = GetProfiler().IsConnected();
if( !GetLuaZoneState().active ) return 0;
#endif
#ifdef TRACY_CALLSTACK
const uint32_t depth = TRACY_CALLSTACK;
#else
const auto depth = uint32_t( lua_tointeger( L, 2 ) );
#endif
SendLuaCallstack( L, depth );
lua_Debug dbg;
lua_getstack( L, 1, &dbg );
lua_getinfo( L, "Snl", &dbg );
size_t nsz;
const auto name = lua_tolstring( L, 1, &nsz );
const auto srcloc = Profiler::AllocSourceLocation( dbg.currentline, dbg.source, dbg.name ? dbg.name : dbg.short_src, name, nsz );
TracyQueuePrepare( QueueType::ZoneBeginAllocSrcLocCallstack );
MemWrite( &item->zoneBegin.time, Profiler::GetTime() );
MemWrite( &item->zoneBegin.srcloc, srcloc );
TracyQueueCommit( zoneBeginThread );
return 0;
}
#endif
static inline int LuaZoneBegin( lua_State* L )
{
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
return LuaZoneBeginS( L );
#else
#ifdef TRACY_ON_DEMAND
const auto zoneCnt = GetLuaZoneState().counter++;
if( zoneCnt != 0 && !GetLuaZoneState().active ) return 0;
GetLuaZoneState().active = GetProfiler().IsConnected();
if( !GetLuaZoneState().active ) return 0;
#endif
lua_Debug dbg;
lua_getstack( L, 1, &dbg );
lua_getinfo( L, "Snl", &dbg );
const auto srcloc = Profiler::AllocSourceLocation( dbg.currentline, dbg.source, dbg.name ? dbg.name : dbg.short_src );
TracyQueuePrepare( QueueType::ZoneBeginAllocSrcLoc );
MemWrite( &item->zoneBegin.time, Profiler::GetTime() );
MemWrite( &item->zoneBegin.srcloc, srcloc );
TracyQueueCommit( zoneBeginThread );
return 0;
#endif
}
static inline int LuaZoneBeginN( lua_State* L )
{
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
return LuaZoneBeginNS( L );
#else
#ifdef TRACY_ON_DEMAND
const auto zoneCnt = GetLuaZoneState().counter++;
if( zoneCnt != 0 && !GetLuaZoneState().active ) return 0;
GetLuaZoneState().active = GetProfiler().IsConnected();
if( !GetLuaZoneState().active ) return 0;
#endif
lua_Debug dbg;
lua_getstack( L, 1, &dbg );
lua_getinfo( L, "Snl", &dbg );
size_t nsz;
const auto name = lua_tolstring( L, 1, &nsz );
const auto srcloc = Profiler::AllocSourceLocation( dbg.currentline, dbg.source, dbg.name ? dbg.name : dbg.short_src, name, nsz );
TracyQueuePrepare( QueueType::ZoneBeginAllocSrcLoc );
MemWrite( &item->zoneBegin.time, Profiler::GetTime() );
MemWrite( &item->zoneBegin.srcloc, srcloc );
TracyQueueCommit( zoneBeginThread );
return 0;
#endif
}
static inline int LuaZoneEnd( lua_State* L )
{
#ifdef TRACY_ON_DEMAND
assert( GetLuaZoneState().counter != 0 );
GetLuaZoneState().counter--;
if( !GetLuaZoneState().active ) return 0;
if( !GetProfiler().IsConnected() )
{
GetLuaZoneState().active = false;
return 0;
}
#endif
TracyQueuePrepare( QueueType::ZoneEnd );
MemWrite( &item->zoneEnd.time, Profiler::GetTime() );
TracyQueueCommit( zoneEndThread );
return 0;
}
static inline int LuaZoneText( lua_State* L )
{
#ifdef TRACY_ON_DEMAND
if( !GetLuaZoneState().active ) return 0;
if( !GetProfiler().IsConnected() )
{
GetLuaZoneState().active = false;
return 0;
}
#endif
auto txt = lua_tostring( L, 1 );
const auto size = strlen( txt );
assert( size < std::numeric_limits<uint16_t>::max() );
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, txt, size );
TracyQueuePrepare( QueueType::ZoneText );
MemWrite( &item->zoneTextFat.text, (uint64_t)ptr );
MemWrite( &item->zoneTextFat.size, (uint16_t)size );
TracyQueueCommit( zoneTextFatThread );
return 0;
}
static inline int LuaZoneName( lua_State* L )
{
#ifdef TRACY_ON_DEMAND
if( !GetLuaZoneState().active ) return 0;
if( !GetProfiler().IsConnected() )
{
GetLuaZoneState().active = false;
return 0;
}
#endif
auto txt = lua_tostring( L, 1 );
const auto size = strlen( txt );
assert( size < std::numeric_limits<uint16_t>::max() );
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, txt, size );
TracyQueuePrepare( QueueType::ZoneName );
MemWrite( &item->zoneTextFat.text, (uint64_t)ptr );
MemWrite( &item->zoneTextFat.size, (uint16_t)size );
TracyQueueCommit( zoneTextFatThread );
return 0;
}
static inline int LuaMessage( lua_State* L )
{
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() ) return 0;
#endif
auto txt = lua_tostring( L, 1 );
const auto size = strlen( txt );
assert( size < std::numeric_limits<uint16_t>::max() );
auto ptr = (char*)tracy_malloc( size );
memcpy( ptr, txt, size );
TracyQueuePrepare( QueueType::Message );
MemWrite( &item->messageFat.time, Profiler::GetTime() );
MemWrite( &item->messageFat.text, (uint64_t)ptr );
MemWrite( &item->messageFat.size, (uint16_t)size );
TracyQueueCommit( messageFatThread );
return 0;
}
}
static inline void LuaRegister( lua_State* L )
{
lua_newtable( L );
lua_pushcfunction( L, detail::LuaZoneBegin );
lua_setfield( L, -2, "ZoneBegin" );
lua_pushcfunction( L, detail::LuaZoneBeginN );
lua_setfield( L, -2, "ZoneBeginN" );
#ifdef TRACY_HAS_CALLSTACK
lua_pushcfunction( L, detail::LuaZoneBeginS );
lua_setfield( L, -2, "ZoneBeginS" );
lua_pushcfunction( L, detail::LuaZoneBeginNS );
lua_setfield( L, -2, "ZoneBeginNS" );
#else
lua_pushcfunction( L, detail::LuaZoneBegin );
lua_setfield( L, -2, "ZoneBeginS" );
lua_pushcfunction( L, detail::LuaZoneBeginN );
lua_setfield( L, -2, "ZoneBeginNS" );
#endif
lua_pushcfunction( L, detail::LuaZoneEnd );
lua_setfield( L, -2, "ZoneEnd" );
lua_pushcfunction( L, detail::LuaZoneText );
lua_setfield( L, -2, "ZoneText" );
lua_pushcfunction( L, detail::LuaZoneName );
lua_setfield( L, -2, "ZoneName" );
lua_pushcfunction( L, detail::LuaMessage );
lua_setfield( L, -2, "Message" );
lua_setglobal( L, "tracy" );
}
static inline void LuaRemove( char* script ) {}
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyVulkan.hpp | #ifndef __TRACYVULKAN_HPP__
#define __TRACYVULKAN_HPP__
#if !defined TRACY_ENABLE
#define TracyVkContext(x,y,z,w) nullptr
#define TracyVkContextCalibrated(x,y,z,w,a,b) nullptr
#define TracyVkDestroy(x)
#define TracyVkContextName(c,x,y)
#define TracyVkNamedZone(c,x,y,z,w)
#define TracyVkNamedZoneC(c,x,y,z,w,a)
#define TracyVkZone(c,x,y)
#define TracyVkZoneC(c,x,y,z)
#define TracyVkZoneTransient(c,x,y,z,w)
#define TracyVkCollect(c,x)
#define TracyVkNamedZoneS(c,x,y,z,w,a)
#define TracyVkNamedZoneCS(c,x,y,z,w,v,a)
#define TracyVkZoneS(c,x,y,z)
#define TracyVkZoneCS(c,x,y,z,w)
#define TracyVkZoneTransientS(c,x,y,z,w,a)
namespace tracy
{
class VkCtxScope {};
}
using TracyVkCtx = void*;
#else
#if !defined VK_NULL_HANDLE
# error "You must include Vulkan headers before including TracyVulkan.hpp"
#endif
#include <assert.h>
#include <stdlib.h>
#include "Tracy.hpp"
#include "../client/TracyProfiler.hpp"
#include "../client/TracyCallstack.hpp"
namespace tracy
{
class VkCtx
{
friend class VkCtxScope;
enum { QueryCount = 64 * 1024 };
public:
VkCtx( VkPhysicalDevice physdev, VkDevice device, VkQueue queue, VkCommandBuffer cmdbuf, PFN_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT _vkGetPhysicalDeviceCalibrateableTimeDomainsEXT, PFN_vkGetCalibratedTimestampsEXT _vkGetCalibratedTimestampsEXT )
: m_device( device )
, m_timeDomain( VK_TIME_DOMAIN_DEVICE_EXT )
, m_context( GetGpuCtxCounter().fetch_add( 1, std::memory_order_relaxed ) )
, m_head( 0 )
, m_tail( 0 )
, m_oldCnt( 0 )
, m_queryCount( QueryCount )
, m_vkGetCalibratedTimestampsEXT( _vkGetCalibratedTimestampsEXT )
{
assert( m_context != 255 );
if( _vkGetPhysicalDeviceCalibrateableTimeDomainsEXT && _vkGetCalibratedTimestampsEXT )
{
uint32_t num;
_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT( physdev, &num, nullptr );
if( num > 4 ) num = 4;
VkTimeDomainEXT data[4];
_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT( physdev, &num, data );
VkTimeDomainEXT supportedDomain = (VkTimeDomainEXT)-1;
#if defined _WIN32
supportedDomain = VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT;
#elif defined __linux__ && defined CLOCK_MONOTONIC_RAW
supportedDomain = VK_TIME_DOMAIN_CLOCK_MONOTONIC_RAW_EXT;
#endif
for( uint32_t i=0; i<num; i++ )
{
if( data[i] == supportedDomain )
{
m_timeDomain = data[i];
break;
}
}
}
VkPhysicalDeviceProperties prop;
vkGetPhysicalDeviceProperties( physdev, &prop );
const float period = prop.limits.timestampPeriod;
VkQueryPoolCreateInfo poolInfo = {};
poolInfo.sType = VK_STRUCTURE_TYPE_QUERY_POOL_CREATE_INFO;
poolInfo.queryCount = m_queryCount;
poolInfo.queryType = VK_QUERY_TYPE_TIMESTAMP;
while( vkCreateQueryPool( device, &poolInfo, nullptr, &m_query ) != VK_SUCCESS )
{
m_queryCount /= 2;
poolInfo.queryCount = m_queryCount;
}
VkCommandBufferBeginInfo beginInfo = {};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
VkSubmitInfo submitInfo = {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cmdbuf;
vkBeginCommandBuffer( cmdbuf, &beginInfo );
vkCmdResetQueryPool( cmdbuf, m_query, 0, m_queryCount );
vkEndCommandBuffer( cmdbuf );
vkQueueSubmit( queue, 1, &submitInfo, VK_NULL_HANDLE );
vkQueueWaitIdle( queue );
int64_t tcpu, tgpu;
if( m_timeDomain == VK_TIME_DOMAIN_DEVICE_EXT )
{
vkBeginCommandBuffer( cmdbuf, &beginInfo );
vkCmdWriteTimestamp( cmdbuf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, m_query, 0 );
vkEndCommandBuffer( cmdbuf );
vkQueueSubmit( queue, 1, &submitInfo, VK_NULL_HANDLE );
vkQueueWaitIdle( queue );
tcpu = Profiler::GetTime();
vkGetQueryPoolResults( device, m_query, 0, 1, sizeof( tgpu ), &tgpu, sizeof( tgpu ), VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT );
vkBeginCommandBuffer( cmdbuf, &beginInfo );
vkCmdResetQueryPool( cmdbuf, m_query, 0, 1 );
vkEndCommandBuffer( cmdbuf );
vkQueueSubmit( queue, 1, &submitInfo, VK_NULL_HANDLE );
vkQueueWaitIdle( queue );
}
else
{
enum { NumProbes = 32 };
VkCalibratedTimestampInfoEXT spec[2] = {
{ VK_STRUCTURE_TYPE_CALIBRATED_TIMESTAMP_INFO_EXT, nullptr, VK_TIME_DOMAIN_DEVICE_EXT },
{ VK_STRUCTURE_TYPE_CALIBRATED_TIMESTAMP_INFO_EXT, nullptr, m_timeDomain },
};
uint64_t ts[2];
uint64_t deviation[NumProbes];
for( int i=0; i<NumProbes; i++ )
{
_vkGetCalibratedTimestampsEXT( device, 2, spec, ts, deviation+i );
}
uint64_t minDeviation = deviation[0];
for( int i=1; i<NumProbes; i++ )
{
if( minDeviation > deviation[i] )
{
minDeviation = deviation[i];
}
}
m_deviation = minDeviation * 3 / 2;
#if defined _WIN32
m_qpcToNs = int64_t( 1000000000. / GetFrequencyQpc() );
#endif
Calibrate( device, m_prevCalibration, tgpu );
tcpu = Profiler::GetTime();
}
uint8_t flags = 0;
if( m_timeDomain != VK_TIME_DOMAIN_DEVICE_EXT ) flags |= GpuContextCalibration;
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuNewContext );
MemWrite( &item->gpuNewContext.cpuTime, tcpu );
MemWrite( &item->gpuNewContext.gpuTime, tgpu );
memset( &item->gpuNewContext.thread, 0, sizeof( item->gpuNewContext.thread ) );
MemWrite( &item->gpuNewContext.period, period );
MemWrite( &item->gpuNewContext.context, m_context );
MemWrite( &item->gpuNewContext.flags, flags );
MemWrite( &item->gpuNewContext.type, GpuContextType::Vulkan );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
m_res = (int64_t*)tracy_malloc( sizeof( int64_t ) * m_queryCount );
}
~VkCtx()
{
tracy_free( m_res );
vkDestroyQueryPool( m_device, m_query, nullptr );
}
void Name( const char* name, uint16_t len )
{
auto ptr = (char*)tracy_malloc( len );
memcpy( ptr, name, len );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuContextName );
MemWrite( &item->gpuContextNameFat.context, m_context );
MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
MemWrite( &item->gpuContextNameFat.size, len );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
void Collect( VkCommandBuffer cmdbuf )
{
ZoneScopedC( Color::Red4 );
if( m_tail == m_head ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() )
{
vkCmdResetQueryPool( cmdbuf, m_query, 0, m_queryCount );
m_head = m_tail = m_oldCnt = 0;
int64_t tgpu;
if( m_timeDomain != VK_TIME_DOMAIN_DEVICE_EXT ) Calibrate( m_device, m_prevCalibration, tgpu );
return;
}
#endif
unsigned int cnt;
if( m_oldCnt != 0 )
{
cnt = m_oldCnt;
m_oldCnt = 0;
}
else
{
cnt = m_head < m_tail ? m_queryCount - m_tail : m_head - m_tail;
}
if( vkGetQueryPoolResults( m_device, m_query, m_tail, cnt, sizeof( int64_t ) * m_queryCount, m_res, sizeof( int64_t ), VK_QUERY_RESULT_64_BIT ) == VK_NOT_READY )
{
m_oldCnt = cnt;
return;
}
for( unsigned int idx=0; idx<cnt; idx++ )
{
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuTime );
MemWrite( &item->gpuTime.gpuTime, m_res[idx] );
MemWrite( &item->gpuTime.queryId, uint16_t( m_tail + idx ) );
MemWrite( &item->gpuTime.context, m_context );
Profiler::QueueSerialFinish();
}
if( m_timeDomain != VK_TIME_DOMAIN_DEVICE_EXT )
{
int64_t tgpu, tcpu;
Calibrate( m_device, tcpu, tgpu );
const auto refCpu = Profiler::GetTime();
const auto delta = tcpu - m_prevCalibration;
if( delta > 0 )
{
m_prevCalibration = tcpu;
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuCalibration );
MemWrite( &item->gpuCalibration.gpuTime, tgpu );
MemWrite( &item->gpuCalibration.cpuTime, refCpu );
MemWrite( &item->gpuCalibration.cpuDelta, delta );
MemWrite( &item->gpuCalibration.context, m_context );
Profiler::QueueSerialFinish();
}
}
vkCmdResetQueryPool( cmdbuf, m_query, m_tail, cnt );
m_tail += cnt;
if( m_tail == m_queryCount ) m_tail = 0;
}
private:
tracy_force_inline unsigned int NextQueryId()
{
const auto id = m_head;
m_head = ( m_head + 1 ) % m_queryCount;
assert( m_head != m_tail );
return id;
}
tracy_force_inline uint8_t GetId() const
{
return m_context;
}
tracy_force_inline void Calibrate( VkDevice device, int64_t& tCpu, int64_t& tGpu )
{
assert( m_timeDomain != VK_TIME_DOMAIN_DEVICE_EXT );
VkCalibratedTimestampInfoEXT spec[2] = {
{ VK_STRUCTURE_TYPE_CALIBRATED_TIMESTAMP_INFO_EXT, nullptr, VK_TIME_DOMAIN_DEVICE_EXT },
{ VK_STRUCTURE_TYPE_CALIBRATED_TIMESTAMP_INFO_EXT, nullptr, m_timeDomain },
};
uint64_t ts[2];
uint64_t deviation;
do
{
m_vkGetCalibratedTimestampsEXT( device, 2, spec, ts, &deviation );
}
while( deviation > m_deviation );
#if defined _WIN32
tGpu = ts[0];
tCpu = ts[1] * m_qpcToNs;
#elif defined __linux__ && defined CLOCK_MONOTONIC_RAW
tGpu = ts[0];
tCpu = ts[1];
#else
assert( false );
#endif
}
VkDevice m_device;
VkQueryPool m_query;
VkTimeDomainEXT m_timeDomain;
uint64_t m_deviation;
int64_t m_qpcToNs;
int64_t m_prevCalibration;
uint8_t m_context;
unsigned int m_head;
unsigned int m_tail;
unsigned int m_oldCnt;
unsigned int m_queryCount;
int64_t* m_res;
PFN_vkGetCalibratedTimestampsEXT m_vkGetCalibratedTimestampsEXT;
};
class VkCtxScope
{
public:
tracy_force_inline VkCtxScope( VkCtx* ctx, const SourceLocationData* srcloc, VkCommandBuffer cmdbuf, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
m_cmdbuf = cmdbuf;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
vkCmdWriteTimestamp( cmdbuf, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, ctx->m_query, queryId );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginSerial );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, ctx->GetId() );
Profiler::QueueSerialFinish();
}
tracy_force_inline VkCtxScope( VkCtx* ctx, const SourceLocationData* srcloc, VkCommandBuffer cmdbuf, int depth, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
m_cmdbuf = cmdbuf;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
vkCmdWriteTimestamp( cmdbuf, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, ctx->m_query, queryId );
auto item = Profiler::QueueSerialCallstack( Callstack( depth ) );
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginCallstackSerial );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, ctx->GetId() );
Profiler::QueueSerialFinish();
}
tracy_force_inline VkCtxScope( VkCtx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, VkCommandBuffer cmdbuf, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
m_cmdbuf = cmdbuf;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
vkCmdWriteTimestamp( cmdbuf, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, ctx->m_query, queryId );
const auto srcloc = Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocSerial );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.srcloc, srcloc );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, ctx->GetId() );
Profiler::QueueSerialFinish();
}
tracy_force_inline VkCtxScope( VkCtx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, VkCommandBuffer cmdbuf, int depth, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
m_cmdbuf = cmdbuf;
m_ctx = ctx;
const auto queryId = ctx->NextQueryId();
vkCmdWriteTimestamp( cmdbuf, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, ctx->m_query, queryId );
const auto srcloc = Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
auto item = Profiler::QueueSerialCallstack( Callstack( depth ) );
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocCallstackSerial );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.srcloc, srcloc );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, ctx->GetId() );
Profiler::QueueSerialFinish();
}
tracy_force_inline ~VkCtxScope()
{
if( !m_active ) return;
const auto queryId = m_ctx->NextQueryId();
vkCmdWriteTimestamp( m_cmdbuf, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, m_ctx->m_query, queryId );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneEndSerial );
MemWrite( &item->gpuZoneEnd.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneEnd.thread, GetThreadHandle() );
MemWrite( &item->gpuZoneEnd.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneEnd.context, m_ctx->GetId() );
Profiler::QueueSerialFinish();
}
private:
const bool m_active;
VkCommandBuffer m_cmdbuf;
VkCtx* m_ctx;
};
static inline VkCtx* CreateVkContext( VkPhysicalDevice physdev, VkDevice device, VkQueue queue, VkCommandBuffer cmdbuf, PFN_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT gpdctd, PFN_vkGetCalibratedTimestampsEXT gct )
{
auto ctx = (VkCtx*)tracy_malloc( sizeof( VkCtx ) );
new(ctx) VkCtx( physdev, device, queue, cmdbuf, gpdctd, gct );
return ctx;
}
static inline void DestroyVkContext( VkCtx* ctx )
{
ctx->~VkCtx();
tracy_free( ctx );
}
}
using TracyVkCtx = tracy::VkCtx*;
#define TracyVkContext( physdev, device, queue, cmdbuf ) tracy::CreateVkContext( physdev, device, queue, cmdbuf, nullptr, nullptr );
#define TracyVkContextCalibrated( physdev, device, queue, cmdbuf, gpdctd, gct ) tracy::CreateVkContext( physdev, device, queue, cmdbuf, gpdctd, gct );
#define TracyVkDestroy( ctx ) tracy::DestroyVkContext( ctx );
#define TracyVkContextName( ctx, name, size ) ctx->Name( name, size );
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyVkNamedZone( ctx, varname, cmdbuf, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::VkCtxScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), cmdbuf, TRACY_CALLSTACK, active );
# define TracyVkNamedZoneC( ctx, varname, cmdbuf, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::VkCtxScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), cmdbuf, TRACY_CALLSTACK, active );
# define TracyVkZone( ctx, cmdbuf, name ) TracyVkNamedZoneS( ctx, ___tracy_gpu_zone, cmdbuf, name, TRACY_CALLSTACK, true )
# define TracyVkZoneC( ctx, cmdbuf, name, color ) TracyVkNamedZoneCS( ctx, ___tracy_gpu_zone, cmdbuf, name, color, TRACY_CALLSTACK, true )
# define TracyVkZoneTransient( ctx, varname, cmdbuf, name, active ) TracyVkZoneTransientS( ctx, varname, cmdbuf, name, TRACY_CALLSTACK, active )
#else
# define TracyVkNamedZone( ctx, varname, cmdbuf, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::VkCtxScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), cmdbuf, active );
# define TracyVkNamedZoneC( ctx, varname, cmdbuf, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::VkCtxScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), cmdbuf, active );
# define TracyVkZone( ctx, cmdbuf, name ) TracyVkNamedZone( ctx, ___tracy_gpu_zone, cmdbuf, name, true )
# define TracyVkZoneC( ctx, cmdbuf, name, color ) TracyVkNamedZoneC( ctx, ___tracy_gpu_zone, cmdbuf, name, color, true )
# define TracyVkZoneTransient( ctx, varname, cmdbuf, name, active ) tracy::VkCtxScope varname( ctx, __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), cmdbuf, active );
#endif
#define TracyVkCollect( ctx, cmdbuf ) ctx->Collect( cmdbuf );
#ifdef TRACY_HAS_CALLSTACK
# define TracyVkNamedZoneS( ctx, varname, cmdbuf, name, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::VkCtxScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), cmdbuf, depth, active );
# define TracyVkNamedZoneCS( ctx, varname, cmdbuf, name, color, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::VkCtxScope varname( ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), cmdbuf, depth, active );
# define TracyVkZoneS( ctx, cmdbuf, name, depth ) TracyVkNamedZoneS( ctx, ___tracy_gpu_zone, cmdbuf, name, depth, true )
# define TracyVkZoneCS( ctx, cmdbuf, name, color, depth ) TracyVkNamedZoneCS( ctx, ___tracy_gpu_zone, cmdbuf, name, color, depth, true )
# define TracyVkZoneTransientS( ctx, varname, cmdbuf, name, depth, active ) tracy::VkCtxScope varname( ctx, __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), cmdbuf, depth, active );
#else
# define TracyVkNamedZoneS( ctx, varname, cmdbuf, name, depth, active ) TracyVkNamedZone( ctx, varname, cmdbuf, name, active )
# define TracyVkNamedZoneCS( ctx, varname, cmdbuf, name, color, depth, active ) TracyVkNamedZoneC( ctx, varname, cmdbuf, name, color, active )
# define TracyVkZoneS( ctx, cmdbuf, name, depth ) TracyVkZone( ctx, cmdbuf, name )
# define TracyVkZoneCS( ctx, cmdbuf, name, color, depth ) TracyVkZoneC( ctx, cmdbuf, name, color )
# define TracyVkZoneTransientS( ctx, varname, cmdbuf, name, depth, active ) TracyVkZoneTransient( ctx, varname, cmdbuf, name, active )
#endif
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyOpenGL.hpp | #ifndef __TRACYOPENGL_HPP__
#define __TRACYOPENGL_HPP__
#if !defined TRACY_ENABLE || defined __APPLE__
#define TracyGpuContext
#define TracyGpuContextName(x,y)
#define TracyGpuNamedZone(x,y,z)
#define TracyGpuNamedZoneC(x,y,z,w)
#define TracyGpuZone(x)
#define TracyGpuZoneC(x,y)
#define TracyGpuZoneTransient(x,y,z)
#define TracyGpuCollect
#define TracyGpuNamedZoneS(x,y,z,w)
#define TracyGpuNamedZoneCS(x,y,z,w,a)
#define TracyGpuZoneS(x,y)
#define TracyGpuZoneCS(x,y,z)
#define TracyGpuZoneTransientS(x,y,z,w)
namespace tracy
{
struct SourceLocationData;
class GpuCtxScope
{
public:
GpuCtxScope( const SourceLocationData*, bool ) {}
GpuCtxScope( const SourceLocationData*, int, bool ) {}
};
}
#else
#include <atomic>
#include <assert.h>
#include <stdlib.h>
#include "Tracy.hpp"
#include "../client/TracyProfiler.hpp"
#include "../client/TracyCallstack.hpp"
#include "../common/TracyAlign.hpp"
#include "../common/TracyAlloc.hpp"
#if !defined GL_TIMESTAMP && defined GL_TIMESTAMP_EXT
# define GL_TIMESTAMP GL_TIMESTAMP_EXT
# define GL_QUERY_COUNTER_BITS GL_QUERY_COUNTER_BITS_EXT
# define glGetQueryObjectiv glGetQueryObjectivEXT
# define glGetQueryObjectui64v glGetQueryObjectui64vEXT
# define glQueryCounter glQueryCounterEXT
#endif
#define TracyGpuContext tracy::GetGpuCtx().ptr = (tracy::GpuCtx*)tracy::tracy_malloc( sizeof( tracy::GpuCtx ) ); new(tracy::GetGpuCtx().ptr) tracy::GpuCtx;
#define TracyGpuContextName( name, size ) tracy::GetGpuCtx().ptr->Name( name, size );
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyGpuNamedZone( varname, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::GpuCtxScope varname( &TracyConcat(__tracy_gpu_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyGpuNamedZoneC( varname, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::GpuCtxScope varname( &TracyConcat(__tracy_gpu_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyGpuZone( name ) TracyGpuNamedZoneS( ___tracy_gpu_zone, name, TRACY_CALLSTACK, true )
# define TracyGpuZoneC( name, color ) TracyGpuNamedZoneCS( ___tracy_gpu_zone, name, color, TRACY_CALLSTACK, true )
# define TracyGpuZoneTransient( varname, name, active ) tracy::GpuCtxScope varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), TRACY_CALLSTACK, active );
#else
# define TracyGpuNamedZone( varname, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::GpuCtxScope varname( &TracyConcat(__tracy_gpu_source_location,__LINE__), active );
# define TracyGpuNamedZoneC( varname, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::GpuCtxScope varname( &TracyConcat(__tracy_gpu_source_location,__LINE__), active );
# define TracyGpuZone( name ) TracyGpuNamedZone( ___tracy_gpu_zone, name, true )
# define TracyGpuZoneC( name, color ) TracyGpuNamedZoneC( ___tracy_gpu_zone, name, color, true )
# define TracyGpuZoneTransient( varname, name, active ) tracy::GpuCtxScope varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), active );
#endif
#define TracyGpuCollect tracy::GetGpuCtx().ptr->Collect();
#ifdef TRACY_HAS_CALLSTACK
# define TracyGpuNamedZoneS( varname, name, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::GpuCtxScope varname( &TracyConcat(__tracy_gpu_source_location,__LINE__), depth, active );
# define TracyGpuNamedZoneCS( varname, name, color, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::GpuCtxScope varname( &TracyConcat(__tracy_gpu_source_location,__LINE__), depth, active );
# define TracyGpuZoneS( name, depth ) TracyGpuNamedZoneS( ___tracy_gpu_zone, name, depth, true )
# define TracyGpuZoneCS( name, color, depth ) TracyGpuNamedZoneCS( ___tracy_gpu_zone, name, color, depth, true )
# define TracyGpuZoneTransientS( varname, name, depth, active ) tracy::GpuCtxScope varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), depth, active );
#else
# define TracyGpuNamedZoneS( varname, name, depth, active ) TracyGpuNamedZone( varname, name, active )
# define TracyGpuNamedZoneCS( varname, name, color, depth, active ) TracyGpuNamedZoneC( varname, name, color, active )
# define TracyGpuZoneS( name, depth ) TracyGpuZone( name )
# define TracyGpuZoneCS( name, color, depth ) TracyGpuZoneC( name, color )
# define TracyGpuZoneTransientS( varname, name, depth, active ) TracyGpuZoneTransient( varname, name, active )
#endif
namespace tracy
{
class GpuCtx
{
friend class GpuCtxScope;
enum { QueryCount = 64 * 1024 };
public:
GpuCtx()
: m_context( GetGpuCtxCounter().fetch_add( 1, std::memory_order_relaxed ) )
, m_head( 0 )
, m_tail( 0 )
{
assert( m_context != 255 );
glGenQueries( QueryCount, m_query );
int64_t tgpu;
glGetInteger64v( GL_TIMESTAMP, &tgpu );
int64_t tcpu = Profiler::GetTime();
GLint bits;
glGetQueryiv( GL_TIMESTAMP, GL_QUERY_COUNTER_BITS, &bits );
const float period = 1.f;
const auto thread = GetThreadHandle();
TracyLfqPrepare( QueueType::GpuNewContext );
MemWrite( &item->gpuNewContext.cpuTime, tcpu );
MemWrite( &item->gpuNewContext.gpuTime, tgpu );
MemWrite( &item->gpuNewContext.thread, thread );
MemWrite( &item->gpuNewContext.period, period );
MemWrite( &item->gpuNewContext.context, m_context );
MemWrite( &item->gpuNewContext.flags, uint8_t( 0 ) );
MemWrite( &item->gpuNewContext.type, GpuContextType::OpenGl );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
TracyLfqCommit;
}
void Name( const char* name, uint16_t len )
{
auto ptr = (char*)tracy_malloc( len );
memcpy( ptr, name, len );
TracyLfqPrepare( QueueType::GpuContextName );
MemWrite( &item->gpuContextNameFat.context, m_context );
MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
MemWrite( &item->gpuContextNameFat.size, len );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
TracyLfqCommit;
}
void Collect()
{
ZoneScopedC( Color::Red4 );
if( m_tail == m_head ) return;
#ifdef TRACY_ON_DEMAND
if( !GetProfiler().IsConnected() )
{
m_head = m_tail = 0;
return;
}
#endif
while( m_tail != m_head )
{
GLint available;
glGetQueryObjectiv( m_query[m_tail], GL_QUERY_RESULT_AVAILABLE, &available );
if( !available ) return;
uint64_t time;
glGetQueryObjectui64v( m_query[m_tail], GL_QUERY_RESULT, &time );
TracyLfqPrepare( QueueType::GpuTime );
MemWrite( &item->gpuTime.gpuTime, (int64_t)time );
MemWrite( &item->gpuTime.queryId, (uint16_t)m_tail );
MemWrite( &item->gpuTime.context, m_context );
TracyLfqCommit;
m_tail = ( m_tail + 1 ) % QueryCount;
}
}
private:
tracy_force_inline unsigned int NextQueryId()
{
const auto id = m_head;
m_head = ( m_head + 1 ) % QueryCount;
assert( m_head != m_tail );
return id;
}
tracy_force_inline unsigned int TranslateOpenGlQueryId( unsigned int id )
{
return m_query[id];
}
tracy_force_inline uint8_t GetId() const
{
return m_context;
}
unsigned int m_query[QueryCount];
uint8_t m_context;
unsigned int m_head;
unsigned int m_tail;
};
class GpuCtxScope
{
public:
tracy_force_inline GpuCtxScope( const SourceLocationData* srcloc, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
const auto queryId = GetGpuCtx().ptr->NextQueryId();
glQueryCounter( GetGpuCtx().ptr->TranslateOpenGlQueryId( queryId ), GL_TIMESTAMP );
TracyLfqPrepare( QueueType::GpuZoneBegin );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
memset( &item->gpuZoneBegin.thread, 0, sizeof( item->gpuZoneBegin.thread ) );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, GetGpuCtx().ptr->GetId() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
TracyLfqCommit;
}
tracy_force_inline GpuCtxScope( const SourceLocationData* srcloc, int depth, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
const auto queryId = GetGpuCtx().ptr->NextQueryId();
glQueryCounter( GetGpuCtx().ptr->TranslateOpenGlQueryId( queryId ), GL_TIMESTAMP );
#ifdef TRACY_FIBERS
TracyLfqPrepare( QueueType::GpuZoneBegin );
memset( &item->gpuZoneBegin.thread, 0, sizeof( item->gpuZoneBegin.thread ) );
#else
GetProfiler().SendCallstack( depth );
TracyLfqPrepare( QueueType::GpuZoneBeginCallstack );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
#endif
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, GetGpuCtx().ptr->GetId() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
TracyLfqCommit;
}
tracy_force_inline GpuCtxScope( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
const auto queryId = GetGpuCtx().ptr->NextQueryId();
glQueryCounter( GetGpuCtx().ptr->TranslateOpenGlQueryId( queryId ), GL_TIMESTAMP );
TracyLfqPrepare( QueueType::GpuZoneBeginAllocSrcLoc );
const auto srcloc = Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
memset( &item->gpuZoneBegin.thread, 0, sizeof( item->gpuZoneBegin.thread ) );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, GetGpuCtx().ptr->GetId() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
TracyLfqCommit;
}
tracy_force_inline GpuCtxScope( uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, int depth, bool is_active )
#ifdef TRACY_ON_DEMAND
: m_active( is_active && GetProfiler().IsConnected() )
#else
: m_active( is_active )
#endif
{
if( !m_active ) return;
const auto queryId = GetGpuCtx().ptr->NextQueryId();
glQueryCounter( GetGpuCtx().ptr->TranslateOpenGlQueryId( queryId ), GL_TIMESTAMP );
#ifdef TRACY_FIBERS
TracyLfqPrepare( QueueType::GpuZoneBeginAllocSrcLoc );
memset( &item->gpuZoneBegin.thread, 0, sizeof( item->gpuZoneBegin.thread ) );
#else
GetProfiler().SendCallstack( depth );
TracyLfqPrepare( QueueType::GpuZoneBeginAllocSrcLocCallstack );
MemWrite( &item->gpuZoneBegin.thread, GetThreadHandle() );
#endif
const auto srcloc = Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
MemWrite( &item->gpuZoneBegin.cpuTime, Profiler::GetTime() );
MemWrite( &item->gpuZoneBegin.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneBegin.context, GetGpuCtx().ptr->GetId() );
MemWrite( &item->gpuZoneBegin.srcloc, (uint64_t)srcloc );
TracyLfqCommit;
}
tracy_force_inline ~GpuCtxScope()
{
if( !m_active ) return;
const auto queryId = GetGpuCtx().ptr->NextQueryId();
glQueryCounter( GetGpuCtx().ptr->TranslateOpenGlQueryId( queryId ), GL_TIMESTAMP );
TracyLfqPrepare( QueueType::GpuZoneEnd );
MemWrite( &item->gpuZoneEnd.cpuTime, Profiler::GetTime() );
memset( &item->gpuZoneEnd.thread, 0, sizeof( item->gpuZoneEnd.thread ) );
MemWrite( &item->gpuZoneEnd.queryId, uint16_t( queryId ) );
MemWrite( &item->gpuZoneEnd.context, GetGpuCtx().ptr->GetId() );
TracyLfqCommit;
}
private:
const bool m_active;
};
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyD3D12.hpp | #ifndef __TRACYD3D12_HPP__
#define __TRACYD3D12_HPP__
#ifndef TRACY_ENABLE
#define TracyD3D12Context(device, queue) nullptr
#define TracyD3D12Destroy(ctx)
#define TracyD3D12ContextName(ctx, name, size)
#define TracyD3D12NewFrame(ctx)
#define TracyD3D12Zone(ctx, cmdList, name)
#define TracyD3D12ZoneC(ctx, cmdList, name, color)
#define TracyD3D12NamedZone(ctx, varname, cmdList, name, active)
#define TracyD3D12NamedZoneC(ctx, varname, cmdList, name, color, active)
#define TracyD3D12ZoneTransient(ctx, varname, cmdList, name, active)
#define TracyD3D12ZoneS(ctx, cmdList, name, depth)
#define TracyD3D12ZoneCS(ctx, cmdList, name, color, depth)
#define TracyD3D12NamedZoneS(ctx, varname, cmdList, name, depth, active)
#define TracyD3D12NamedZoneCS(ctx, varname, cmdList, name, color, depth, active)
#define TracyD3D12ZoneTransientS(ctx, varname, cmdList, name, depth, active)
#define TracyD3D12Collect(ctx)
namespace tracy
{
class D3D12ZoneScope {};
}
using TracyD3D12Ctx = void*;
#else
#include "Tracy.hpp"
#include "../client/TracyProfiler.hpp"
#include "../client/TracyCallstack.hpp"
#include <cstdlib>
#include <cassert>
#include <d3d12.h>
#include <dxgi.h>
#include <wrl/client.h>
#include <queue>
namespace tracy
{
struct D3D12QueryPayload
{
uint32_t m_queryIdStart = 0;
uint32_t m_queryCount = 0;
};
// Command queue context.
class D3D12QueueCtx
{
friend class D3D12ZoneScope;
static constexpr uint32_t MaxQueries = 64 * 1024; // Queries are begin and end markers, so we can store half as many total time durations. Must be even!
bool m_initialized = false;
ID3D12Device* m_device = nullptr;
ID3D12CommandQueue* m_queue = nullptr;
uint8_t m_context;
Microsoft::WRL::ComPtr<ID3D12QueryHeap> m_queryHeap;
Microsoft::WRL::ComPtr<ID3D12Resource> m_readbackBuffer;
// In-progress payload.
uint32_t m_queryLimit = MaxQueries;
std::atomic<uint32_t> m_queryCounter = 0;
uint32_t m_previousQueryCounter = 0;
uint32_t m_activePayload = 0;
Microsoft::WRL::ComPtr<ID3D12Fence> m_payloadFence;
std::queue<D3D12QueryPayload> m_payloadQueue;
int64_t m_prevCalibration = 0;
int64_t m_qpcToNs = int64_t{ 1000000000 / GetFrequencyQpc() };
public:
D3D12QueueCtx(ID3D12Device* device, ID3D12CommandQueue* queue)
: m_device(device)
, m_queue(queue)
, m_context(GetGpuCtxCounter().fetch_add(1, std::memory_order_relaxed))
{
// Verify we support timestamp queries on this queue.
if (queue->GetDesc().Type == D3D12_COMMAND_LIST_TYPE_COPY)
{
D3D12_FEATURE_DATA_D3D12_OPTIONS3 featureData{};
bool Success = SUCCEEDED(device->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS3, &featureData, sizeof(featureData)));
assert(Success && featureData.CopyQueueTimestampQueriesSupported && "Platform does not support profiling of copy queues.");
}
uint64_t timestampFrequency;
if (FAILED(queue->GetTimestampFrequency(×tampFrequency)))
{
assert(false && "Failed to get timestamp frequency.");
}
uint64_t cpuTimestamp;
uint64_t gpuTimestamp;
if (FAILED(queue->GetClockCalibration(&gpuTimestamp, &cpuTimestamp)))
{
assert(false && "Failed to get queue clock calibration.");
}
// Save the device cpu timestamp, not the profiler's timestamp.
m_prevCalibration = cpuTimestamp * m_qpcToNs;
cpuTimestamp = Profiler::GetTime();
D3D12_QUERY_HEAP_DESC heapDesc{};
heapDesc.Type = queue->GetDesc().Type == D3D12_COMMAND_LIST_TYPE_COPY ? D3D12_QUERY_HEAP_TYPE_COPY_QUEUE_TIMESTAMP : D3D12_QUERY_HEAP_TYPE_TIMESTAMP;
heapDesc.Count = m_queryLimit;
heapDesc.NodeMask = 0; // #TODO: Support multiple adapters.
while (FAILED(device->CreateQueryHeap(&heapDesc, IID_PPV_ARGS(&m_queryHeap))))
{
m_queryLimit /= 2;
heapDesc.Count = m_queryLimit;
}
// Create a readback buffer, which will be used as a destination for the query data.
D3D12_RESOURCE_DESC readbackBufferDesc{};
readbackBufferDesc.Alignment = 0;
readbackBufferDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
readbackBufferDesc.Width = m_queryLimit * sizeof(uint64_t);
readbackBufferDesc.Height = 1;
readbackBufferDesc.DepthOrArraySize = 1;
readbackBufferDesc.Format = DXGI_FORMAT_UNKNOWN;
readbackBufferDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR; // Buffers are always row major.
readbackBufferDesc.MipLevels = 1;
readbackBufferDesc.SampleDesc.Count = 1;
readbackBufferDesc.SampleDesc.Quality = 0;
readbackBufferDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
D3D12_HEAP_PROPERTIES readbackHeapProps{};
readbackHeapProps.Type = D3D12_HEAP_TYPE_READBACK;
readbackHeapProps.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
readbackHeapProps.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
readbackHeapProps.CreationNodeMask = 0;
readbackHeapProps.VisibleNodeMask = 0; // #TODO: Support multiple adapters.
if (FAILED(device->CreateCommittedResource(&readbackHeapProps, D3D12_HEAP_FLAG_NONE, &readbackBufferDesc, D3D12_RESOURCE_STATE_COPY_DEST, nullptr, IID_PPV_ARGS(&m_readbackBuffer))))
{
assert(false && "Failed to create query readback buffer.");
}
if (FAILED(device->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_payloadFence))))
{
assert(false && "Failed to create payload fence.");
}
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuNewContext);
MemWrite(&item->gpuNewContext.cpuTime, cpuTimestamp);
MemWrite(&item->gpuNewContext.gpuTime, gpuTimestamp);
memset(&item->gpuNewContext.thread, 0, sizeof(item->gpuNewContext.thread));
MemWrite(&item->gpuNewContext.period, 1E+09f / static_cast<float>(timestampFrequency));
MemWrite(&item->gpuNewContext.context, m_context);
MemWrite(&item->gpuNewContext.flags, GpuContextCalibration);
MemWrite(&item->gpuNewContext.type, GpuContextType::Direct3D12);
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem(*item);
#endif
Profiler::QueueSerialFinish();
m_initialized = true;
}
void NewFrame()
{
uint32_t queryCounter = m_queryCounter.exchange(0);
m_payloadQueue.emplace(D3D12QueryPayload{ m_previousQueryCounter, queryCounter });
m_previousQueryCounter += queryCounter;
if (m_previousQueryCounter >= m_queryLimit)
{
m_previousQueryCounter -= m_queryLimit;
}
m_queue->Signal(m_payloadFence.Get(), ++m_activePayload);
}
void Name( const char* name, uint16_t len )
{
auto ptr = (char*)tracy_malloc( len );
memcpy( ptr, name, len );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuContextName );
MemWrite( &item->gpuContextNameFat.context, m_context );
MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
MemWrite( &item->gpuContextNameFat.size, len );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
void Collect()
{
ZoneScopedC(Color::Red4);
#ifdef TRACY_ON_DEMAND
if (!GetProfiler().IsConnected())
{
m_queryCounter = 0;
return;
}
#endif
// Find out what payloads are available.
const auto newestReadyPayload = m_payloadFence->GetCompletedValue();
const auto payloadCount = m_payloadQueue.size() - (m_activePayload - newestReadyPayload);
if (!payloadCount)
{
return; // No payloads are available yet, exit out.
}
D3D12_RANGE mapRange{ 0, m_queryLimit * sizeof(uint64_t) };
// Map the readback buffer so we can fetch the query data from the GPU.
void* readbackBufferMapping = nullptr;
if (FAILED(m_readbackBuffer->Map(0, &mapRange, &readbackBufferMapping)))
{
assert(false && "Failed to map readback buffer.");
}
auto* timestampData = static_cast<uint64_t*>(readbackBufferMapping);
for (uint32_t i = 0; i < payloadCount; ++i)
{
const auto& payload = m_payloadQueue.front();
for (uint32_t j = 0; j < payload.m_queryCount; ++j)
{
const auto counter = (payload.m_queryIdStart + j) % m_queryLimit;
const auto timestamp = timestampData[counter];
const auto queryId = counter;
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuTime);
MemWrite(&item->gpuTime.gpuTime, timestamp);
MemWrite(&item->gpuTime.queryId, static_cast<uint16_t>(queryId));
MemWrite(&item->gpuTime.context, m_context);
Profiler::QueueSerialFinish();
}
m_payloadQueue.pop();
}
m_readbackBuffer->Unmap(0, nullptr);
// Recalibrate to account for drift.
uint64_t cpuTimestamp;
uint64_t gpuTimestamp;
if (FAILED(m_queue->GetClockCalibration(&gpuTimestamp, &cpuTimestamp)))
{
assert(false && "Failed to get queue clock calibration.");
}
cpuTimestamp *= m_qpcToNs;
const auto cpuDelta = cpuTimestamp - m_prevCalibration;
if (cpuDelta > 0)
{
m_prevCalibration = cpuTimestamp;
cpuTimestamp = Profiler::GetTime();
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuCalibration);
MemWrite(&item->gpuCalibration.gpuTime, gpuTimestamp);
MemWrite(&item->gpuCalibration.cpuTime, cpuTimestamp);
MemWrite(&item->gpuCalibration.cpuDelta, cpuDelta);
MemWrite(&item->gpuCalibration.context, m_context);
Profiler::QueueSerialFinish();
}
}
private:
tracy_force_inline uint32_t NextQueryId()
{
uint32_t queryCounter = m_queryCounter.fetch_add(2);
assert(queryCounter < m_queryLimit && "Submitted too many GPU queries! Consider increasing MaxQueries.");
const uint32_t id = (m_previousQueryCounter + queryCounter) % m_queryLimit;
return id;
}
tracy_force_inline uint8_t GetId() const
{
return m_context;
}
};
class D3D12ZoneScope
{
const bool m_active;
D3D12QueueCtx* m_ctx = nullptr;
ID3D12GraphicsCommandList* m_cmdList = nullptr;
uint32_t m_queryId = 0; // Used for tracking in nested zones.
public:
tracy_force_inline D3D12ZoneScope(D3D12QueueCtx* ctx, ID3D12GraphicsCommandList* cmdList, const SourceLocationData* srcLocation, bool active)
#ifdef TRACY_ON_DEMAND
: m_active(active && GetProfiler().IsConnected())
#else
: m_active(active)
#endif
{
if (!m_active) return;
m_ctx = ctx;
m_cmdList = cmdList;
m_queryId = ctx->NextQueryId();
cmdList->EndQuery(ctx->m_queryHeap.Get(), D3D12_QUERY_TYPE_TIMESTAMP, m_queryId);
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, reinterpret_cast<uint64_t>(srcLocation));
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, static_cast<uint16_t>(m_queryId));
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline D3D12ZoneScope(D3D12QueueCtx* ctx, ID3D12GraphicsCommandList* cmdList, const SourceLocationData* srcLocation, int depth, bool active)
#ifdef TRACY_ON_DEMAND
: m_active(active&& GetProfiler().IsConnected())
#else
: m_active(active)
#endif
{
if (!m_active) return;
m_ctx = ctx;
m_cmdList = cmdList;
m_queryId = ctx->NextQueryId();
cmdList->EndQuery(ctx->m_queryHeap.Get(), D3D12_QUERY_TYPE_TIMESTAMP, m_queryId);
auto* item = Profiler::QueueSerialCallstack(Callstack(depth));
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginCallstackSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, reinterpret_cast<uint64_t>(srcLocation));
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, static_cast<uint16_t>(m_queryId));
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline D3D12ZoneScope(D3D12QueueCtx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, ID3D12GraphicsCommandList* cmdList, bool active)
#ifdef TRACY_ON_DEMAND
: m_active(active&& GetProfiler().IsConnected())
#else
: m_active(active)
#endif
{
if (!m_active) return;
m_ctx = ctx;
m_cmdList = cmdList;
m_queryId = ctx->NextQueryId();
cmdList->EndQuery(ctx->m_queryHeap.Get(), D3D12_QUERY_TYPE_TIMESTAMP, m_queryId);
const auto sourceLocation = Profiler::AllocSourceLocation(line, source, sourceSz, function, functionSz, name, nameSz);
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, sourceLocation);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, static_cast<uint16_t>(m_queryId));
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline D3D12ZoneScope(D3D12QueueCtx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, ID3D12GraphicsCommandList* cmdList, int depth, bool active)
#ifdef TRACY_ON_DEMAND
: m_active(active&& GetProfiler().IsConnected())
#else
: m_active(active)
#endif
{
if (!m_active) return;
m_ctx = ctx;
m_cmdList = cmdList;
m_queryId = ctx->NextQueryId();
cmdList->EndQuery(ctx->m_queryHeap.Get(), D3D12_QUERY_TYPE_TIMESTAMP, m_queryId);
const auto sourceLocation = Profiler::AllocSourceLocation(line, source, sourceSz, function, functionSz, name, nameSz);
auto* item = Profiler::QueueSerialCallstack(Callstack(depth));
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocCallstackSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, sourceLocation);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, static_cast<uint16_t>(m_queryId));
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline ~D3D12ZoneScope()
{
if (!m_active) return;
const auto queryId = m_queryId + 1; // Our end query slot is immediately after the begin slot.
m_cmdList->EndQuery(m_ctx->m_queryHeap.Get(), D3D12_QUERY_TYPE_TIMESTAMP, queryId);
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneEndSerial);
MemWrite(&item->gpuZoneEnd.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneEnd.thread, GetThreadHandle());
MemWrite(&item->gpuZoneEnd.queryId, static_cast<uint16_t>(queryId));
MemWrite(&item->gpuZoneEnd.context, m_ctx->GetId());
Profiler::QueueSerialFinish();
m_cmdList->ResolveQueryData(m_ctx->m_queryHeap.Get(), D3D12_QUERY_TYPE_TIMESTAMP, m_queryId, 2, m_ctx->m_readbackBuffer.Get(), m_queryId * sizeof(uint64_t));
}
};
static inline D3D12QueueCtx* CreateD3D12Context(ID3D12Device* device, ID3D12CommandQueue* queue)
{
auto* ctx = static_cast<D3D12QueueCtx*>(tracy_malloc(sizeof(D3D12QueueCtx)));
new (ctx) D3D12QueueCtx{ device, queue };
return ctx;
}
static inline void DestroyD3D12Context(D3D12QueueCtx* ctx)
{
ctx->~D3D12QueueCtx();
tracy_free(ctx);
}
}
using TracyD3D12Ctx = tracy::D3D12QueueCtx*;
#define TracyD3D12Context(device, queue) tracy::CreateD3D12Context(device, queue);
#define TracyD3D12Destroy(ctx) tracy::DestroyD3D12Context(ctx);
#define TracyD3D12ContextName(ctx, name, size) ctx->Name(name, size);
#define TracyD3D12NewFrame(ctx) ctx->NewFrame();
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyD3D12Zone(ctx, cmdList, name) TracyD3D12NamedZoneS(ctx, ___tracy_gpu_zone, cmdList, name, TRACY_CALLSTACK, true)
# define TracyD3D12ZoneC(ctx, cmdList, name, color) TracyD3D12NamedZoneCS(ctx, ___tracy_gpu_zone, cmdList, name, color, TRACY_CALLSTACK, true)
# define TracyD3D12NamedZone(ctx, varname, cmdList, name, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location, __LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::D3D12ZoneScope varname{ ctx, cmdList, &TracyConcat(__tracy_gpu_source_location, __LINE__), TRACY_CALLSTACK, active };
# define TracyD3D12NamedZoneC(ctx, varname, cmdList, name, color, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location, __LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::D3D12ZoneScope varname{ ctx, cmdList, &TracyConcat(__tracy_gpu_source_location, __LINE__), TRACY_CALLSTACK, active };
# define TracyD3D12ZoneTransient(ctx, varname, cmdList, name, active) TracyD3D12ZoneTransientS(ctx, varname, cmdList, name, TRACY_CALLSTACK, active)
#else
# define TracyD3D12Zone(ctx, cmdList, name) TracyD3D12NamedZone(ctx, ___tracy_gpu_zone, cmdList, name, true)
# define TracyD3D12ZoneC(ctx, cmdList, name, color) TracyD3D12NamedZoneC(ctx, ___tracy_gpu_zone, cmdList, name, color, true)
# define TracyD3D12NamedZone(ctx, varname, cmdList, name, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location, __LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::D3D12ZoneScope varname{ ctx, cmdList, &TracyConcat(__tracy_gpu_source_location, __LINE__), active };
# define TracyD3D12NamedZoneC(ctx, varname, cmdList, name, color, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location, __LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::D3D12ZoneScope varname{ ctx, cmdList, &TracyConcat(__tracy_gpu_source_location, __LINE__), active };
# define TracyD3D12ZoneTransient(ctx, varname, cmdList, name, active) tracy::D3D12ZoneScope varname{ ctx, __LINE__, __FILE__, strlen(__FILE__), __FUNCTION__, strlen(__FUNCTION__), name, strlen(name), cmdList, active };
#endif
#ifdef TRACY_HAS_CALLSTACK
# define TracyD3D12ZoneS(ctx, cmdList, name, depth) TracyD3D12NamedZoneS(ctx, ___tracy_gpu_zone, cmdList, name, depth, true)
# define TracyD3D12ZoneCS(ctx, cmdList, name, color, depth) TracyD3D12NamedZoneCS(ctx, ___tracy_gpu_zone, cmdList, name, color, depth, true)
# define TracyD3D12NamedZoneS(ctx, varname, cmdList, name, depth, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location, __LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::D3D12ZoneScope varname{ ctx, cmdList, &TracyConcat(__tracy_gpu_source_location, __LINE__), depth, active };
# define TracyD3D12NamedZoneCS(ctx, varname, cmdList, name, color, depth, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location, __LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::D3D12ZoneScope varname{ ctx, cmdList, &TracyConcat(__tracy_gpu_source_location, __LINE__), depth, active };
# define TracyD3D12ZoneTransientS(ctx, varname, cmdList, name, depth, active) tracy::D3D12ZoneScope varname{ ctx, __LINE__, __FILE__, strlen(__FILE__), __FUNCTION__, strlen(__FUNCTION__), name, strlen(name), cmdList, depth, active };
#else
# define TracyD3D12ZoneS(ctx, cmdList, name, depth) TracyD3D12Zone(ctx, cmdList, name)
# define TracyD3D12ZoneCS(ctx, cmdList, name, color, depth) TracyD3D12Zone(ctx, cmdList, name, color)
# define TracyD3D12NamedZoneS(ctx, varname, cmdList, name, depth, active) TracyD3D12NamedZone(ctx, varname, cmdList, name, active)
# define TracyD3D12NamedZoneCS(ctx, varname, cmdList, name, color, depth, active) TracyD3D12NamedZoneC(ctx, varname, cmdList, name, color, active)
# define TracyD3D12ZoneTransientS(ctx, varname, cmdList, name, depth, active) TracyD3D12ZoneTransient(ctx, varname, cmdList, name, active)
#endif
#define TracyD3D12Collect(ctx) ctx->Collect();
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/Tracy.hpp | #ifndef __TRACY_HPP__
#define __TRACY_HPP__
#include "../common/TracyColor.hpp"
#include "../common/TracySystem.hpp"
#ifndef TRACY_ENABLE
#define ZoneNamed(x,y)
#define ZoneNamedN(x,y,z)
#define ZoneNamedC(x,y,z)
#define ZoneNamedNC(x,y,z,w)
#define ZoneTransient(x,y)
#define ZoneTransientN(x,y,z)
#define ZoneScoped
#define ZoneScopedN(x)
#define ZoneScopedC(x)
#define ZoneScopedNC(x,y)
#define ZoneText(x,y)
#define ZoneTextV(x,y,z)
#define ZoneName(x,y)
#define ZoneNameV(x,y,z)
#define ZoneColor(x)
#define ZoneColorV(x,y)
#define ZoneValue(x)
#define ZoneValueV(x,y)
#define ZoneIsActive false
#define ZoneIsActiveV(x) false
#define FrameMark
#define FrameMarkNamed(x)
#define FrameMarkStart(x)
#define FrameMarkEnd(x)
#define FrameImage(x,y,z,w,a)
#define TracyLockable( type, varname ) type varname;
#define TracyLockableN( type, varname, desc ) type varname;
#define TracySharedLockable( type, varname ) type varname;
#define TracySharedLockableN( type, varname, desc ) type varname;
#define LockableBase( type ) type
#define SharedLockableBase( type ) type
#define LockMark(x) (void)x;
#define LockableName(x,y,z);
#define TracyPlot(x,y)
#define TracyPlotConfig(x,y,z,w,a)
#define TracyMessage(x,y)
#define TracyMessageL(x)
#define TracyMessageC(x,y,z)
#define TracyMessageLC(x,y)
#define TracyAppInfo(x,y)
#define TracyAlloc(x,y)
#define TracyFree(x)
#define TracySecureAlloc(x,y)
#define TracySecureFree(x)
#define TracyAllocN(x,y,z)
#define TracyFreeN(x,y)
#define TracySecureAllocN(x,y,z)
#define TracySecureFreeN(x,y)
#define ZoneNamedS(x,y,z)
#define ZoneNamedNS(x,y,z,w)
#define ZoneNamedCS(x,y,z,w)
#define ZoneNamedNCS(x,y,z,w,a)
#define ZoneTransientS(x,y,z)
#define ZoneTransientNS(x,y,z,w)
#define ZoneScopedS(x)
#define ZoneScopedNS(x,y)
#define ZoneScopedCS(x,y)
#define ZoneScopedNCS(x,y,z)
#define TracyAllocS(x,y,z)
#define TracyFreeS(x,y)
#define TracySecureAllocS(x,y,z)
#define TracySecureFreeS(x,y)
#define TracyAllocNS(x,y,z,w)
#define TracyFreeNS(x,y,z)
#define TracySecureAllocNS(x,y,z,w)
#define TracySecureFreeNS(x,y,z)
#define TracyMessageS(x,y,z)
#define TracyMessageLS(x,y)
#define TracyMessageCS(x,y,z,w)
#define TracyMessageLCS(x,y,z)
#define TracySourceCallbackRegister(x,y)
#define TracyParameterRegister(x,y)
#define TracyParameterSetup(x,y,z,w)
#define TracyIsConnected false
#define TracyFiberEnter(x)
#define TracyFiberLeave
#else
#include <string.h>
#include "../client/TracyLock.hpp"
#include "../client/TracyProfiler.hpp"
#include "../client/TracyScoped.hpp"
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define ZoneNamed( varname, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active )
# define ZoneNamedN( varname, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active )
# define ZoneNamedC( varname, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active )
# define ZoneNamedNC( varname, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), TRACY_CALLSTACK, active )
# define ZoneTransient( varname, active ) tracy::ScopedZone varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), nullptr, 0, TRACY_CALLSTACK, active )
# define ZoneTransientN( varname, name, active ) tracy::ScopedZone varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), TRACY_CALLSTACK, active )
#else
# define ZoneNamed( varname, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), active )
# define ZoneNamedN( varname, name, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), active )
# define ZoneNamedC( varname, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), active )
# define ZoneNamedNC( varname, name, color, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), active )
# define ZoneTransient( varname, active ) tracy::ScopedZone varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), nullptr, 0, active )
# define ZoneTransientN( varname, name, active ) tracy::ScopedZone varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), active )
#endif
#define ZoneScoped ZoneNamed( ___tracy_scoped_zone, true )
#define ZoneScopedN( name ) ZoneNamedN( ___tracy_scoped_zone, name, true )
#define ZoneScopedC( color ) ZoneNamedC( ___tracy_scoped_zone, color, true )
#define ZoneScopedNC( name, color ) ZoneNamedNC( ___tracy_scoped_zone, name, color, true )
#define ZoneText( txt, size ) ___tracy_scoped_zone.Text( txt, size )
#define ZoneTextV( varname, txt, size ) varname.Text( txt, size )
#define ZoneName( txt, size ) ___tracy_scoped_zone.Name( txt, size )
#define ZoneNameV( varname, txt, size ) varname.Name( txt, size )
#define ZoneColor( color ) ___tracy_scoped_zone.Color( color )
#define ZoneColorV( varname, color ) varname.Color( color )
#define ZoneValue( value ) ___tracy_scoped_zone.Value( value )
#define ZoneValueV( varname, value ) varname.Value( value )
#define ZoneIsActive ___tracy_scoped_zone.IsActive()
#define ZoneIsActiveV( varname ) varname.IsActive()
#define FrameMark tracy::Profiler::SendFrameMark( nullptr )
#define FrameMarkNamed( name ) tracy::Profiler::SendFrameMark( name )
#define FrameMarkStart( name ) tracy::Profiler::SendFrameMark( name, tracy::QueueType::FrameMarkMsgStart )
#define FrameMarkEnd( name ) tracy::Profiler::SendFrameMark( name, tracy::QueueType::FrameMarkMsgEnd )
#define FrameImage( image, width, height, offset, flip ) tracy::Profiler::SendFrameImage( image, width, height, offset, flip )
#define TracyLockable( type, varname ) tracy::Lockable<type> varname { [] () -> const tracy::SourceLocationData* { static constexpr tracy::SourceLocationData srcloc { nullptr, #type " " #varname, __FILE__, __LINE__, 0 }; return &srcloc; }() }
#define TracyLockableN( type, varname, desc ) tracy::Lockable<type> varname { [] () -> const tracy::SourceLocationData* { static constexpr tracy::SourceLocationData srcloc { nullptr, desc, __FILE__, __LINE__, 0 }; return &srcloc; }() }
#define TracySharedLockable( type, varname ) tracy::SharedLockable<type> varname { [] () -> const tracy::SourceLocationData* { static constexpr tracy::SourceLocationData srcloc { nullptr, #type " " #varname, __FILE__, __LINE__, 0 }; return &srcloc; }() }
#define TracySharedLockableN( type, varname, desc ) tracy::SharedLockable<type> varname { [] () -> const tracy::SourceLocationData* { static constexpr tracy::SourceLocationData srcloc { nullptr, desc, __FILE__, __LINE__, 0 }; return &srcloc; }() }
#define LockableBase( type ) tracy::Lockable<type>
#define SharedLockableBase( type ) tracy::SharedLockable<type>
#define LockMark( varname ) static constexpr tracy::SourceLocationData __tracy_lock_location_##varname { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; varname.Mark( &__tracy_lock_location_##varname )
#define LockableName( varname, txt, size ) varname.CustomName( txt, size )
#define TracyPlot( name, val ) tracy::Profiler::PlotData( name, val )
#define TracyPlotConfig( name, type, step, fill, color ) tracy::Profiler::ConfigurePlot( name, type, step, fill, color )
#define TracyAppInfo( txt, size ) tracy::Profiler::MessageAppInfo( txt, size )
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyMessage( txt, size ) tracy::Profiler::Message( txt, size, TRACY_CALLSTACK )
# define TracyMessageL( txt ) tracy::Profiler::Message( txt, TRACY_CALLSTACK )
# define TracyMessageC( txt, size, color ) tracy::Profiler::MessageColor( txt, size, color, TRACY_CALLSTACK )
# define TracyMessageLC( txt, color ) tracy::Profiler::MessageColor( txt, color, TRACY_CALLSTACK )
# define TracyAlloc( ptr, size ) tracy::Profiler::MemAllocCallstack( ptr, size, TRACY_CALLSTACK, false )
# define TracyFree( ptr ) tracy::Profiler::MemFreeCallstack( ptr, TRACY_CALLSTACK, false )
# define TracySecureAlloc( ptr, size ) tracy::Profiler::MemAllocCallstack( ptr, size, TRACY_CALLSTACK, true )
# define TracySecureFree( ptr ) tracy::Profiler::MemFreeCallstack( ptr, TRACY_CALLSTACK, true )
# define TracyAllocN( ptr, size, name ) tracy::Profiler::MemAllocCallstackNamed( ptr, size, TRACY_CALLSTACK, false, name )
# define TracyFreeN( ptr, name ) tracy::Profiler::MemFreeCallstackNamed( ptr, TRACY_CALLSTACK, false, name )
# define TracySecureAllocN( ptr, size, name ) tracy::Profiler::MemAllocCallstackNamed( ptr, size, TRACY_CALLSTACK, true, name )
# define TracySecureFreeN( ptr, name ) tracy::Profiler::MemFreeCallstackNamed( ptr, TRACY_CALLSTACK, true, name )
#else
# define TracyMessage( txt, size ) tracy::Profiler::Message( txt, size, 0 )
# define TracyMessageL( txt ) tracy::Profiler::Message( txt, 0 )
# define TracyMessageC( txt, size, color ) tracy::Profiler::MessageColor( txt, size, color, 0 )
# define TracyMessageLC( txt, color ) tracy::Profiler::MessageColor( txt, color, 0 )
# define TracyAlloc( ptr, size ) tracy::Profiler::MemAlloc( ptr, size, false )
# define TracyFree( ptr ) tracy::Profiler::MemFree( ptr, false )
# define TracySecureAlloc( ptr, size ) tracy::Profiler::MemAlloc( ptr, size, true )
# define TracySecureFree( ptr ) tracy::Profiler::MemFree( ptr, true )
# define TracyAllocN( ptr, size, name ) tracy::Profiler::MemAllocNamed( ptr, size, false, name )
# define TracyFreeN( ptr, name ) tracy::Profiler::MemFreeNamed( ptr, false, name )
# define TracySecureAllocN( ptr, size, name ) tracy::Profiler::MemAllocNamed( ptr, size, true, name )
# define TracySecureFreeN( ptr, name ) tracy::Profiler::MemFreeNamed( ptr, true, name )
#endif
#ifdef TRACY_HAS_CALLSTACK
# define ZoneNamedS( varname, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), depth, active )
# define ZoneNamedNS( varname, name, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), depth, active )
# define ZoneNamedCS( varname, color, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), depth, active )
# define ZoneNamedNCS( varname, name, color, depth, active ) static constexpr tracy::SourceLocationData TracyConcat(__tracy_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::ScopedZone varname( &TracyConcat(__tracy_source_location,__LINE__), depth, active )
# define ZoneTransientS( varname, depth, active ) tracy::ScopedZone varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), nullptr, 0, depth, active )
# define ZoneTransientNS( varname, name, depth, active ) tracy::ScopedZone varname( __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), depth, active )
# define ZoneScopedS( depth ) ZoneNamedS( ___tracy_scoped_zone, depth, true )
# define ZoneScopedNS( name, depth ) ZoneNamedNS( ___tracy_scoped_zone, name, depth, true )
# define ZoneScopedCS( color, depth ) ZoneNamedCS( ___tracy_scoped_zone, color, depth, true )
# define ZoneScopedNCS( name, color, depth ) ZoneNamedNCS( ___tracy_scoped_zone, name, color, depth, true )
# define TracyAllocS( ptr, size, depth ) tracy::Profiler::MemAllocCallstack( ptr, size, depth, false )
# define TracyFreeS( ptr, depth ) tracy::Profiler::MemFreeCallstack( ptr, depth, false )
# define TracySecureAllocS( ptr, size, depth ) tracy::Profiler::MemAllocCallstack( ptr, size, depth, true )
# define TracySecureFreeS( ptr, depth ) tracy::Profiler::MemFreeCallstack( ptr, depth, true )
# define TracyAllocNS( ptr, size, depth, name ) tracy::Profiler::MemAllocCallstackNamed( ptr, size, depth, false, name )
# define TracyFreeNS( ptr, depth, name ) tracy::Profiler::MemFreeCallstackNamed( ptr, depth, false, name )
# define TracySecureAllocNS( ptr, size, depth, name ) tracy::Profiler::MemAllocCallstackNamed( ptr, size, depth, true, name )
# define TracySecureFreeNS( ptr, depth, name ) tracy::Profiler::MemFreeCallstackNamed( ptr, depth, true, name )
# define TracyMessageS( txt, size, depth ) tracy::Profiler::Message( txt, size, depth )
# define TracyMessageLS( txt, depth ) tracy::Profiler::Message( txt, depth )
# define TracyMessageCS( txt, size, color, depth ) tracy::Profiler::MessageColor( txt, size, color, depth )
# define TracyMessageLCS( txt, color, depth ) tracy::Profiler::MessageColor( txt, color, depth )
#else
# define ZoneNamedS( varname, depth, active ) ZoneNamed( varname, active )
# define ZoneNamedNS( varname, name, depth, active ) ZoneNamedN( varname, name, active )
# define ZoneNamedCS( varname, color, depth, active ) ZoneNamedC( varname, color, active )
# define ZoneNamedNCS( varname, name, color, depth, active ) ZoneNamedNC( varname, name, color, active )
# define ZoneTransientS( varname, depth, active ) ZoneTransient( varname, active )
# define ZoneTransientNS( varname, name, depth, active ) ZoneTransientN( varname, name, active )
# define ZoneScopedS( depth ) ZoneScoped
# define ZoneScopedNS( name, depth ) ZoneScopedN( name )
# define ZoneScopedCS( color, depth ) ZoneScopedC( color )
# define ZoneScopedNCS( name, color, depth ) ZoneScopedNC( name, color )
# define TracyAllocS( ptr, size, depth ) TracyAlloc( ptr, size )
# define TracyFreeS( ptr, depth ) TracyFree( ptr )
# define TracySecureAllocS( ptr, size, depth ) TracySecureAlloc( ptr, size )
# define TracySecureFreeS( ptr, depth ) TracySecureFree( ptr )
# define TracyAllocNS( ptr, size, depth, name ) TracyAllocN( ptr, size, name )
# define TracyFreeNS( ptr, depth, name ) TracyFreeN( ptr, name )
# define TracySecureAllocNS( ptr, size, depth, name ) TracySecureAllocN( ptr, size, name )
# define TracySecureFreeNS( ptr, depth, name ) TracySecureFreeN( ptr, name )
# define TracyMessageS( txt, size, depth ) TracyMessage( txt, size )
# define TracyMessageLS( txt, depth ) TracyMessageL( txt )
# define TracyMessageCS( txt, size, color, depth ) TracyMessageC( txt, size, color )
# define TracyMessageLCS( txt, color, depth ) TracyMessageLC( txt, color )
#endif
#define TracySourceCallbackRegister( cb, data ) tracy::Profiler::SourceCallbackRegister( cb, data )
#define TracyParameterRegister( cb, data ) tracy::Profiler::ParameterRegister( cb, data )
#define TracyParameterSetup( idx, name, isBool, val ) tracy::Profiler::ParameterSetup( idx, name, isBool, val )
#define TracyIsConnected tracy::GetProfiler().IsConnected()
#ifdef TRACY_FIBERS
# define TracyFiberEnter( fiber ) tracy::Profiler::EnterFiber( fiber )
# define TracyFiberLeave tracy::Profiler::LeaveFiber()
#endif
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/tracy/TracyOpenCL.hpp | #ifndef __TRACYOPENCL_HPP__
#define __TRACYOPENCL_HPP__
#if !defined TRACY_ENABLE
#define TracyCLContext(c, x) nullptr
#define TracyCLDestroy(c)
#define TracyCLContextName(c, x, y)
#define TracyCLNamedZone(c, x, y, z)
#define TracyCLNamedZoneC(c, x, y, z, w)
#define TracyCLZone(c, x)
#define TracyCLZoneC(c, x, y)
#define TracyCLZoneTransient(c,x,y,z)
#define TracyCLNamedZoneS(c, x, y, z, w)
#define TracyCLNamedZoneCS(c, x, y, z, w, v)
#define TracyCLZoneS(c, x, y)
#define TracyCLZoneCS(c, x, y, z)
#define TracyCLZoneTransientS(c,x,y,z,w)
#define TracyCLNamedZoneSetEvent(x, e)
#define TracyCLZoneSetEvent(e)
#define TracyCLCollect(c)
namespace tracy
{
class OpenCLCtxScope {};
}
using TracyCLCtx = void*;
#else
#include <CL/cl.h>
#include <atomic>
#include <cassert>
#include <sstream>
#include "Tracy.hpp"
#include "../client/TracyCallstack.hpp"
#include "../client/TracyProfiler.hpp"
#include "../common/TracyAlloc.hpp"
#define TRACY_CL_TO_STRING_INDIRECT(T) #T
#define TRACY_CL_TO_STRING(T) TRACY_CL_TO_STRING_INDIRECT(T)
#define TRACY_CL_ASSERT(p) if(!(p)) { \
TracyMessageL( "TRACY_CL_ASSERT failed on " __FILE__ ":" TRACY_CL_TO_STRING(__LINE__) ); \
assert(false && "TRACY_CL_ASSERT failed"); \
}
#define TRACY_CL_CHECK_ERROR(err) if(err != CL_SUCCESS) { \
std::ostringstream oss; \
oss << "TRACY_CL_CHECK_ERROR failed on " << __FILE__ << ":" << __LINE__ \
<< ": error code " << err; \
auto msg = oss.str(); \
TracyMessage(msg.data(), msg.size()); \
assert(false && "TRACY_CL_CHECK_ERROR failed"); \
}
namespace tracy {
enum class EventPhase : uint8_t
{
Begin,
End
};
struct EventInfo
{
cl_event event;
EventPhase phase;
};
class OpenCLCtx
{
public:
enum { QueryCount = 64 * 1024 };
OpenCLCtx(cl_context context, cl_device_id device)
: m_contextId(GetGpuCtxCounter().fetch_add(1, std::memory_order_relaxed))
, m_head(0)
, m_tail(0)
{
int64_t tcpu, tgpu;
TRACY_CL_ASSERT(m_contextId != 255);
cl_int err = CL_SUCCESS;
cl_command_queue queue = clCreateCommandQueue(context, device, CL_QUEUE_PROFILING_ENABLE, &err);
TRACY_CL_CHECK_ERROR(err)
uint32_t dummyValue = 42;
cl_mem dummyBuffer = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(uint32_t), nullptr, &err);
TRACY_CL_CHECK_ERROR(err)
cl_event writeBufferEvent;
TRACY_CL_CHECK_ERROR(clEnqueueWriteBuffer(queue, dummyBuffer, CL_FALSE, 0, sizeof(uint32_t), &dummyValue, 0, nullptr, &writeBufferEvent));
TRACY_CL_CHECK_ERROR(clWaitForEvents(1, &writeBufferEvent));
tcpu = Profiler::GetTime();
cl_int eventStatus;
TRACY_CL_CHECK_ERROR(clGetEventInfo(writeBufferEvent, CL_EVENT_COMMAND_EXECUTION_STATUS, sizeof(cl_int), &eventStatus, nullptr));
TRACY_CL_ASSERT(eventStatus == CL_COMPLETE);
TRACY_CL_CHECK_ERROR(clGetEventProfilingInfo(writeBufferEvent, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &tgpu, nullptr));
TRACY_CL_CHECK_ERROR(clReleaseEvent(writeBufferEvent));
TRACY_CL_CHECK_ERROR(clReleaseMemObject(dummyBuffer));
TRACY_CL_CHECK_ERROR(clReleaseCommandQueue(queue));
auto item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuNewContext);
MemWrite(&item->gpuNewContext.cpuTime, tcpu);
MemWrite(&item->gpuNewContext.gpuTime, tgpu);
memset(&item->gpuNewContext.thread, 0, sizeof(item->gpuNewContext.thread));
MemWrite(&item->gpuNewContext.period, 1.0f);
MemWrite(&item->gpuNewContext.type, GpuContextType::OpenCL);
MemWrite(&item->gpuNewContext.context, (uint8_t) m_contextId);
MemWrite(&item->gpuNewContext.flags, (uint8_t)0);
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem(*item);
#endif
Profiler::QueueSerialFinish();
}
void Name( const char* name, uint16_t len )
{
auto ptr = (char*)tracy_malloc( len );
memcpy( ptr, name, len );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuContextName );
MemWrite( &item->gpuContextNameFat.context, (uint8_t)m_contextId );
MemWrite( &item->gpuContextNameFat.ptr, (uint64_t)ptr );
MemWrite( &item->gpuContextNameFat.size, len );
#ifdef TRACY_ON_DEMAND
GetProfiler().DeferItem( *item );
#endif
Profiler::QueueSerialFinish();
}
void Collect()
{
ZoneScopedC(Color::Red4);
if (m_tail == m_head) return;
#ifdef TRACY_ON_DEMAND
if (!GetProfiler().IsConnected())
{
m_head = m_tail = 0;
}
#endif
for (; m_tail != m_head; m_tail = (m_tail + 1) % QueryCount)
{
EventInfo eventInfo = GetQuery(m_tail);
cl_int eventStatus;
cl_int err = clGetEventInfo(eventInfo.event, CL_EVENT_COMMAND_EXECUTION_STATUS, sizeof(cl_int), &eventStatus, nullptr);
if (err != CL_SUCCESS)
{
std::ostringstream oss;
oss << "clGetEventInfo falied with error code " << err << ", on event " << eventInfo.event << ", skipping...";
auto msg = oss.str();
TracyMessage(msg.data(), msg.size());
if (eventInfo.event == nullptr) {
TracyMessageL("A TracyCLZone must be paird with a TracyCLZoneSetEvent, check your code!");
}
assert(false && "clGetEventInfo failed, maybe a TracyCLZone is not paired with TracyCLZoneSetEvent");
continue;
}
if (eventStatus != CL_COMPLETE) return;
cl_int eventInfoQuery = (eventInfo.phase == EventPhase::Begin)
? CL_PROFILING_COMMAND_START
: CL_PROFILING_COMMAND_END;
cl_ulong eventTimeStamp = 0;
err = clGetEventProfilingInfo(eventInfo.event, eventInfoQuery, sizeof(cl_ulong), &eventTimeStamp, nullptr);
if (err == CL_PROFILING_INFO_NOT_AVAILABLE)
{
TracyMessageL("command queue is not created with CL_QUEUE_PROFILING_ENABLE flag, check your code!");
assert(false && "command queue is not created with CL_QUEUE_PROFILING_ENABLE flag");
}
else
TRACY_CL_CHECK_ERROR(err);
TRACY_CL_ASSERT(eventTimeStamp != 0);
auto item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuTime);
MemWrite(&item->gpuTime.gpuTime, (int64_t)eventTimeStamp);
MemWrite(&item->gpuTime.queryId, (uint16_t)m_tail);
MemWrite(&item->gpuTime.context, m_contextId);
Profiler::QueueSerialFinish();
if (eventInfo.phase == EventPhase::End)
{
// Done with the event, so release it
TRACY_CL_CHECK_ERROR(clReleaseEvent(eventInfo.event));
}
}
}
tracy_force_inline uint8_t GetId() const
{
return m_contextId;
}
tracy_force_inline unsigned int NextQueryId(EventInfo eventInfo)
{
const auto id = m_head;
m_head = (m_head + 1) % QueryCount;
TRACY_CL_ASSERT(m_head != m_tail);
m_query[id] = eventInfo;
return id;
}
tracy_force_inline EventInfo& GetQuery(unsigned int id)
{
TRACY_CL_ASSERT(id < QueryCount);
return m_query[id];
}
private:
unsigned int m_contextId;
EventInfo m_query[QueryCount];
unsigned int m_head; // index at which a new event should be inserted
unsigned int m_tail; // oldest event
};
class OpenCLCtxScope {
public:
tracy_force_inline OpenCLCtxScope(OpenCLCtx* ctx, const SourceLocationData* srcLoc, bool is_active)
#ifdef TRACY_ON_DEMAND
: m_active(is_active&& GetProfiler().IsConnected())
#else
: m_active(is_active)
#endif
, m_ctx(ctx)
, m_event(nullptr)
{
if (!m_active) return;
m_beginQueryId = ctx->NextQueryId(EventInfo{ nullptr, EventPhase::Begin });
auto item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, (uint64_t)srcLoc);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, (uint16_t)m_beginQueryId);
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline OpenCLCtxScope(OpenCLCtx* ctx, const SourceLocationData* srcLoc, int depth, bool is_active)
#ifdef TRACY_ON_DEMAND
: m_active(is_active&& GetProfiler().IsConnected())
#else
: m_active(is_active)
#endif
, m_ctx(ctx)
, m_event(nullptr)
{
if (!m_active) return;
m_beginQueryId = ctx->NextQueryId(EventInfo{ nullptr, EventPhase::Begin });
GetProfiler().SendCallstack(depth);
auto item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginCallstackSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, (uint64_t)srcLoc);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, (uint16_t)m_beginQueryId);
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline OpenCLCtxScope(OpenCLCtx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, bool is_active)
#ifdef TRACY_ON_DEMAND
: m_active(is_active && GetProfiler().IsConnected())
#else
: m_active(is_active)
#endif
, m_ctx(ctx)
, m_event(nullptr)
{
if (!m_active) return;
m_beginQueryId = ctx->NextQueryId(EventInfo{ nullptr, EventPhase::Begin });
const auto srcloc = Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
auto item = Profiler::QueueSerial();
MemWrite( &item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocSerial );
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, srcloc);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, (uint16_t)m_beginQueryId);
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline OpenCLCtxScope(OpenCLCtx* ctx, uint32_t line, const char* source, size_t sourceSz, const char* function, size_t functionSz, const char* name, size_t nameSz, int depth, bool is_active)
#ifdef TRACY_ON_DEMAND
: m_active(is_active && GetProfiler().IsConnected())
#else
: m_active(is_active)
#endif
, m_ctx(ctx)
, m_event(nullptr)
{
if (!m_active) return;
m_beginQueryId = ctx->NextQueryId(EventInfo{ nullptr, EventPhase::Begin });
const auto srcloc = Profiler::AllocSourceLocation( line, source, sourceSz, function, functionSz, name, nameSz );
auto item = Profiler::QueueSerialCallstack( Callstack( depth ) );
MemWrite(&item->hdr.type, QueueType::GpuZoneBeginAllocSrcLocCallstackSerial);
MemWrite(&item->gpuZoneBegin.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneBegin.srcloc, srcloc);
MemWrite(&item->gpuZoneBegin.thread, GetThreadHandle());
MemWrite(&item->gpuZoneBegin.queryId, (uint16_t)m_beginQueryId);
MemWrite(&item->gpuZoneBegin.context, ctx->GetId());
Profiler::QueueSerialFinish();
}
tracy_force_inline void SetEvent(cl_event event)
{
if (!m_active) return;
m_event = event;
TRACY_CL_CHECK_ERROR(clRetainEvent(m_event));
m_ctx->GetQuery(m_beginQueryId).event = m_event;
}
tracy_force_inline ~OpenCLCtxScope()
{
if (!m_active) return;
const auto queryId = m_ctx->NextQueryId(EventInfo{ m_event, EventPhase::End });
auto item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuZoneEndSerial);
MemWrite(&item->gpuZoneEnd.cpuTime, Profiler::GetTime());
MemWrite(&item->gpuZoneEnd.thread, GetThreadHandle());
MemWrite(&item->gpuZoneEnd.queryId, (uint16_t)queryId);
MemWrite(&item->gpuZoneEnd.context, m_ctx->GetId());
Profiler::QueueSerialFinish();
}
const bool m_active;
OpenCLCtx* m_ctx;
cl_event m_event;
unsigned int m_beginQueryId;
};
static inline OpenCLCtx* CreateCLContext(cl_context context, cl_device_id device)
{
auto ctx = (OpenCLCtx*)tracy_malloc(sizeof(OpenCLCtx));
new (ctx) OpenCLCtx(context, device);
return ctx;
}
static inline void DestroyCLContext(OpenCLCtx* ctx)
{
ctx->~OpenCLCtx();
tracy_free(ctx);
}
} // namespace tracy
using TracyCLCtx = tracy::OpenCLCtx*;
#define TracyCLContext(context, device) tracy::CreateCLContext(context, device);
#define TracyCLDestroy(ctx) tracy::DestroyCLContext(ctx);
#define TracyCLContextName(context, name, size) ctx->Name(name, size);
#if defined TRACY_HAS_CALLSTACK && defined TRACY_CALLSTACK
# define TracyCLNamedZone(ctx, varname, name, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::OpenCLCtxScope varname(ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyCLNamedZoneC(ctx, varname, name, color, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__) { name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::OpenCLCtxScope varname(ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), TRACY_CALLSTACK, active );
# define TracyCLZone(ctx, name) TracyCLNamedZoneS(ctx, __tracy_gpu_zone, name, TRACY_CALLSTACK, true)
# define TracyCLZoneC(ctx, name, color) TracyCLNamedZoneCS(ctx, __tracy_gpu_zone, name, color, TRACY_CALLSTACK, true)
# define TracyCLZoneTransient( ctx, varname, name, active ) tracy::OpenCLCtxScope varname( ctx, __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), TRACY_CALLSTACK, active );
#else
# define TracyCLNamedZone(ctx, varname, name, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__){ name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::OpenCLCtxScope varname(ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), active);
# define TracyCLNamedZoneC(ctx, varname, name, color, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__){ name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::OpenCLCtxScope varname(ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), active);
# define TracyCLZone(ctx, name) TracyCLNamedZone(ctx, __tracy_gpu_zone, name, true)
# define TracyCLZoneC(ctx, name, color) TracyCLNamedZoneC(ctx, __tracy_gpu_zone, name, color, true )
# define TracyCLZoneTransient( ctx, varname, name, active ) tracy::OpenCLCtxScope varname( ctx, __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), active );
#endif
#ifdef TRACY_HAS_CALLSTACK
# define TracyCLNamedZoneS(ctx, varname, name, depth, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__){ name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 }; tracy::OpenCLCtxScope varname(ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), depth, active);
# define TracyCLNamedZoneCS(ctx, varname, name, color, depth, active) static constexpr tracy::SourceLocationData TracyConcat(__tracy_gpu_source_location,__LINE__){ name, __FUNCTION__, __FILE__, (uint32_t)__LINE__, color }; tracy::OpenCLCtxScope varname(ctx, &TracyConcat(__tracy_gpu_source_location,__LINE__), depth, active);
# define TracyCLZoneS(ctx, name, depth) TracyCLNamedZoneS(ctx, __tracy_gpu_zone, name, depth, true)
# define TracyCLZoneCS(ctx, name, color, depth) TracyCLNamedZoneCS(ctx, __tracy_gpu_zone, name, color, depth, true)
# define TracyCLZoneTransientS( ctx, varname, name, depth, active ) tracy::OpenCLCtxScope varname( ctx, __LINE__, __FILE__, strlen( __FILE__ ), __FUNCTION__, strlen( __FUNCTION__ ), name, strlen( name ), depth, active );
#else
# define TracyCLNamedZoneS(ctx, varname, name, depth, active) TracyCLNamedZone(ctx, varname, name, active)
# define TracyCLNamedZoneCS(ctx, varname, name, color, depth, active) TracyCLNamedZoneC(ctx, varname, name, color, active)
# define TracyCLZoneS(ctx, name, depth) TracyCLZone(ctx, name)
# define TracyCLZoneCS(ctx, name, color, depth) TracyCLZoneC(ctx, name, color)
# define TracyCLZoneTransientS( ctx, varname, name, depth, active ) TracyCLZoneTransient( ctx, varname, name, active )
#endif
#define TracyCLNamedZoneSetEvent(varname, event) varname.SetEvent(event)
#define TracyCLZoneSetEvent(event) __tracy_gpu_zone.SetEvent(event)
#define TracyCLCollect(ctx) ctx->Collect()
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyStackFrames.cpp | #include "TracyStackFrames.hpp"
namespace tracy
{
const char* s_tracyStackFrames_[] = {
"tracy::Callstack",
"tracy::Callstack(int)",
"tracy::GpuCtxScope::{ctor}",
"tracy::Profiler::SendCallstack",
"tracy::Profiler::SendCallstack(int)",
"tracy::Profiler::SendCallstack(int, unsigned long)",
"tracy::Profiler::MemAllocCallstack",
"tracy::Profiler::MemAllocCallstack(void const*, unsigned long, int)",
"tracy::Profiler::MemFreeCallstack",
"tracy::Profiler::MemFreeCallstack(void const*, int)",
"tracy::ScopedZone::{ctor}",
"tracy::ScopedZone::ScopedZone(tracy::SourceLocationData const*, int, bool)",
"tracy::Profiler::Message",
nullptr
};
const char** s_tracyStackFrames = s_tracyStackFrames_;
const StringMatch s_tracySkipSubframes_[] = {
{ "/include/arm_neon.h", 19 },
{ "/include/adxintrin.h", 20 },
{ "/include/ammintrin.h", 20 },
{ "/include/amxbf16intrin.h", 24 },
{ "/include/amxint8intrin.h", 24 },
{ "/include/amxtileintrin.h", 24 },
{ "/include/avx2intrin.h", 21 },
{ "/include/avx5124fmapsintrin.h", 29 },
{ "/include/avx5124vnniwintrin.h", 29 },
{ "/include/avx512bf16intrin.h", 27 },
{ "/include/avx512bf16vlintrin.h", 29 },
{ "/include/avx512bitalgintrin.h", 29 },
{ "/include/avx512bwintrin.h", 25 },
{ "/include/avx512cdintrin.h", 25 },
{ "/include/avx512dqintrin.h", 25 },
{ "/include/avx512erintrin.h", 25 },
{ "/include/avx512fintrin.h", 24 },
{ "/include/avx512ifmaintrin.h", 27 },
{ "/include/avx512ifmavlintrin.h", 29 },
{ "/include/avx512pfintrin.h", 25 },
{ "/include/avx512vbmi2intrin.h", 28 },
{ "/include/avx512vbmi2vlintrin.h", 30 },
{ "/include/avx512vbmiintrin.h", 27 },
{ "/include/avx512vbmivlintrin.h", 29 },
{ "/include/avx512vlbwintrin.h", 27 },
{ "/include/avx512vldqintrin.h", 27 },
{ "/include/avx512vlintrin.h", 25 },
{ "/include/avx512vnniintrin.h", 27 },
{ "/include/avx512vnnivlintrin.h", 29 },
{ "/include/avx512vp2intersectintrin.h", 35 },
{ "/include/avx512vp2intersectvlintrin.h", 37 },
{ "/include/avx512vpopcntdqintrin.h", 32 },
{ "/include/avx512vpopcntdqvlintrin.h", 34 },
{ "/include/avxintrin.h", 20 },
{ "/include/avxvnniintrin.h", 24 },
{ "/include/bmi2intrin.h", 21 },
{ "/include/bmiintrin.h", 20 },
{ "/include/bmmintrin.h", 20 },
{ "/include/cetintrin.h", 20 },
{ "/include/cldemoteintrin.h", 25 },
{ "/include/clflushoptintrin.h", 27 },
{ "/include/clwbintrin.h", 21 },
{ "/include/clzerointrin.h", 23 },
{ "/include/emmintrin.h", 20 },
{ "/include/enqcmdintrin.h", 23 },
{ "/include/f16cintrin.h", 21 },
{ "/include/fma4intrin.h", 21 },
{ "/include/fmaintrin.h", 20 },
{ "/include/fxsrintrin.h", 21 },
{ "/include/gfniintrin.h", 21 },
{ "/include/hresetintrin.h", 23 },
{ "/include/ia32intrin.h", 21 },
{ "/include/immintrin.h", 20 },
{ "/include/keylockerintrin.h", 26 },
{ "/include/lwpintrin.h", 20 },
{ "/include/lzcntintrin.h", 22 },
{ "/include/mmintrin.h", 19 },
{ "/include/movdirintrin.h", 23 },
{ "/include/mwaitxintrin.h", 23 },
{ "/include/nmmintrin.h", 20 },
{ "/include/pconfigintrin.h", 24 },
{ "/include/pkuintrin.h", 20 },
{ "/include/pmmintrin.h", 20 },
{ "/include/popcntintrin.h", 23 },
{ "/include/prfchwintrin.h", 23 },
{ "/include/rdseedintrin.h", 23 },
{ "/include/rtmintrin.h", 20 },
{ "/include/serializeintrin.h", 26 },
{ "/include/sgxintrin.h", 20 },
{ "/include/shaintrin.h", 20 },
{ "/include/smmintrin.h", 20 },
{ "/include/tbmintrin.h", 20 },
{ "/include/tmmintrin.h", 20 },
{ "/include/tsxldtrkintrin.h", 25 },
{ "/include/uintrintrin.h", 22 },
{ "/include/vaesintrin.h", 21 },
{ "/include/vpclmulqdqintrin.h", 27 },
{ "/include/waitpkgintrin.h", 24 },
{ "/include/wbnoinvdintrin.h", 25 },
{ "/include/wmmintrin.h", 20 },
{ "/include/x86gprintrin.h", 23 },
{ "/include/x86intrin.h", 20 },
{ "/include/xmmintrin.h", 20 },
{ "/include/xopintrin.h", 20 },
{ "/include/xsavecintrin.h", 23 },
{ "/include/xsaveintrin.h", 22 },
{ "/include/xsaveoptintrin.h", 25 },
{ "/include/xsavesintrin.h", 23 },
{ "/include/xtestintrin.h", 22 },
{ "/bits/atomic_base.h", 19 },
{ "/atomic", 7 },
{}
};
const StringMatch* s_tracySkipSubframes = s_tracySkipSubframes_;
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracySystem.cpp | #ifdef _MSC_VER
# pragma warning(disable:4996)
#endif
#if defined _WIN32
# ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# endif
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
# include <malloc.h>
# include "TracyUwp.hpp"
#else
# include <pthread.h>
# include <string.h>
# include <unistd.h>
#endif
#ifdef __linux__
# ifdef __ANDROID__
# include <sys/types.h>
# else
# include <sys/syscall.h>
# endif
# include <fcntl.h>
#elif defined __FreeBSD__
# include <sys/thr.h>
#elif defined __NetBSD__ || defined __DragonFly__
# include <sys/lwp.h>
#endif
#ifdef __MINGW32__
# define __STDC_FORMAT_MACROS
#endif
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include "TracySystem.hpp"
#if defined _WIN32
extern "C" typedef HRESULT (WINAPI *t_SetThreadDescription)( HANDLE, PCWSTR );
extern "C" typedef HRESULT (WINAPI *t_GetThreadDescription)( HANDLE, PWSTR* );
#endif
#ifdef TRACY_ENABLE
# include <atomic>
# include "TracyAlloc.hpp"
#endif
namespace tracy
{
namespace detail
{
TRACY_API uint32_t GetThreadHandleImpl()
{
#if defined _WIN32
static_assert( sizeof( decltype( GetCurrentThreadId() ) ) <= sizeof( uint32_t ), "Thread handle too big to fit in protocol" );
return uint32_t( GetCurrentThreadId() );
#elif defined __APPLE__
uint64_t id;
pthread_threadid_np( pthread_self(), &id );
return uint32_t( id );
#elif defined __ANDROID__
return (uint32_t)gettid();
#elif defined __linux__
return (uint32_t)syscall( SYS_gettid );
#elif defined __FreeBSD__
long id;
thr_self( &id );
return id;
#elif defined __NetBSD__
return _lwp_self();
#elif defined __DragonFly__
return lwp_gettid();
#elif defined __OpenBSD__
return getthrid();
#elif defined __EMSCRIPTEN__
// Not supported, but let it compile.
return 0;
#else
// To add support for a platform, retrieve and return the kernel thread identifier here.
//
// Note that pthread_t (as for example returned by pthread_self()) is *not* a kernel
// thread identifier. It is a pointer to a library-allocated data structure instead.
// Such pointers will be reused heavily, making the pthread_t non-unique. Additionally
// a 64-bit pointer cannot be reliably truncated to 32 bits.
#error "Unsupported platform!"
#endif
}
}
#ifdef TRACY_ENABLE
struct ThreadNameData
{
uint32_t id;
const char* name;
ThreadNameData* next;
};
std::atomic<ThreadNameData*>& GetThreadNameData();
#endif
#ifdef _MSC_VER
# pragma pack( push, 8 )
struct THREADNAME_INFO
{
DWORD dwType;
LPCSTR szName;
DWORD dwThreadID;
DWORD dwFlags;
};
# pragma pack( pop )
void ThreadNameMsvcMagic( const THREADNAME_INFO& info )
{
__try
{
RaiseException( 0x406D1388, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info );
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
}
#endif
TRACY_API void SetThreadName( const char* name )
{
#if defined _WIN32
# ifdef TRACY_UWP
static auto _SetThreadDescription = &::SetThreadDescription;
# else
static auto _SetThreadDescription = (t_SetThreadDescription)GetProcAddress( GetModuleHandleA( "kernel32.dll" ), "SetThreadDescription" );
# endif
if( _SetThreadDescription )
{
wchar_t buf[256];
mbstowcs( buf, name, 256 );
_SetThreadDescription( GetCurrentThread(), buf );
}
else
{
# if defined _MSC_VER
THREADNAME_INFO info;
info.dwType = 0x1000;
info.szName = name;
info.dwThreadID = GetCurrentThreadId();
info.dwFlags = 0;
ThreadNameMsvcMagic( info );
# endif
}
#elif defined _GNU_SOURCE && !defined __EMSCRIPTEN__
{
const auto sz = strlen( name );
if( sz <= 15 )
{
#if defined __APPLE__
pthread_setname_np( name );
#else
pthread_setname_np( pthread_self(), name );
#endif
}
else
{
char buf[16];
memcpy( buf, name, 15 );
buf[15] = '\0';
#if defined __APPLE__
pthread_setname_np( buf );
#else
pthread_setname_np( pthread_self(), buf );
#endif
}
}
#endif
#ifdef TRACY_ENABLE
{
const auto sz = strlen( name );
char* buf = (char*)tracy_malloc( sz+1 );
memcpy( buf, name, sz );
buf[sz] = '\0';
auto data = (ThreadNameData*)tracy_malloc_fast( sizeof( ThreadNameData ) );
data->id = detail::GetThreadHandleImpl();
data->name = buf;
data->next = GetThreadNameData().load( std::memory_order_relaxed );
while( !GetThreadNameData().compare_exchange_weak( data->next, data, std::memory_order_release, std::memory_order_relaxed ) ) {}
}
#endif
}
TRACY_API const char* GetThreadName( uint32_t id )
{
static char buf[256];
#ifdef TRACY_ENABLE
auto ptr = GetThreadNameData().load( std::memory_order_relaxed );
while( ptr )
{
if( ptr->id == id )
{
return ptr->name;
}
ptr = ptr->next;
}
#else
# if defined _WIN32
# ifdef TRACY_UWP
static auto _GetThreadDescription = &::GetThreadDescription;
# else
static auto _GetThreadDescription = (t_GetThreadDescription)GetProcAddress( GetModuleHandleA( "kernel32.dll" ), "GetThreadDescription" );
# endif
if( _GetThreadDescription )
{
auto hnd = OpenThread( THREAD_QUERY_LIMITED_INFORMATION, FALSE, (DWORD)id );
if( hnd != 0 )
{
PWSTR tmp;
_GetThreadDescription( hnd, &tmp );
auto ret = wcstombs( buf, tmp, 256 );
CloseHandle( hnd );
if( ret != 0 )
{
return buf;
}
}
}
# elif defined __linux__
int cs, fd;
char path[32];
# ifdef __ANDROID__
int tid = gettid();
# else
int tid = (int) syscall( SYS_gettid );
# endif
snprintf( path, sizeof( path ), "/proc/self/task/%d/comm", tid );
sprintf( buf, "%" PRIu32, id );
# ifndef __ANDROID__
pthread_setcancelstate( PTHREAD_CANCEL_DISABLE, &cs );
# endif
if ( ( fd = open( path, O_RDONLY ) ) > 0) {
int len = read( fd, buf, 255 );
if( len > 0 )
{
buf[len] = 0;
if( len > 1 && buf[len-1] == '\n' )
{
buf[len-1] = 0;
}
}
close( fd );
}
# ifndef __ANDROID__
pthread_setcancelstate( cs, 0 );
# endif
return buf;
# endif
#endif
sprintf( buf, "%" PRIu32, id );
return buf;
}
TRACY_API const char* GetEnvVar( const char* name )
{
#if defined _WIN32
// unfortunately getenv() on Windows is just fundamentally broken. It caches the entire
// environment block once on startup, then never refreshes it again. If any environment
// strings are added or modified after startup of the CRT, those changes will not be
// seen by getenv(). This removes the possibility of an app using this SDK from
// programmatically setting any of the behaviour controlling envvars here.
//
// To work around this, we'll instead go directly to the Win32 environment strings APIs
// to get the current value.
static char buffer[1024];
DWORD const kBufferSize = DWORD(sizeof(buffer) / sizeof(buffer[0]));
DWORD count = GetEnvironmentVariableA(name, buffer, kBufferSize);
if( count == 0 )
return nullptr;
if( count >= kBufferSize )
{
char* buf = reinterpret_cast<char*>(_alloca(count + 1));
count = GetEnvironmentVariableA(name, buf, count + 1);
memcpy(buffer, buf, kBufferSize);
buffer[kBufferSize - 1] = 0;
}
return buffer;
#else
return getenv(name);
#endif
}
}
#ifdef __cplusplus
extern "C" {
#endif
TRACY_API void ___tracy_set_thread_name( const char* name ) { tracy::SetThreadName( name ); }
#ifdef __cplusplus
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyProtocol.hpp | #ifndef __TRACYPROTOCOL_HPP__
#define __TRACYPROTOCOL_HPP__
#include <limits>
#include <stdint.h>
namespace tracy
{
constexpr unsigned Lz4CompressBound( unsigned isize ) { return isize + ( isize / 255 ) + 16; }
enum : uint32_t { ProtocolVersion = 63 };
enum : uint16_t { BroadcastVersion = 3 };
using lz4sz_t = uint32_t;
enum { TargetFrameSize = 256 * 1024 };
enum { LZ4Size = Lz4CompressBound( TargetFrameSize ) };
static_assert( LZ4Size <= std::numeric_limits<lz4sz_t>::max(), "LZ4Size greater than lz4sz_t" );
static_assert( TargetFrameSize * 2 >= 64 * 1024, "Not enough space for LZ4 stream buffer" );
enum { HandshakeShibbolethSize = 8 };
static const char HandshakeShibboleth[HandshakeShibbolethSize] = { 'T', 'r', 'a', 'c', 'y', 'P', 'r', 'f' };
enum HandshakeStatus : uint8_t
{
HandshakePending,
HandshakeWelcome,
HandshakeProtocolMismatch,
HandshakeNotAvailable,
HandshakeDropped
};
enum { WelcomeMessageProgramNameSize = 64 };
enum { WelcomeMessageHostInfoSize = 1024 };
#pragma pack( push, 1 )
// Must increase left query space after handling!
enum ServerQuery : uint8_t
{
ServerQueryTerminate,
ServerQueryString,
ServerQueryThreadString,
ServerQuerySourceLocation,
ServerQueryPlotName,
ServerQueryFrameName,
ServerQueryParameter,
ServerQueryFiberName,
// Items above are high priority. Split order must be preserved. See IsQueryPrio().
ServerQueryDisconnect,
ServerQueryCallstackFrame,
ServerQueryExternalName,
ServerQuerySymbol,
ServerQuerySymbolCode,
ServerQuerySourceCode,
ServerQueryDataTransfer,
ServerQueryDataTransferPart
};
struct ServerQueryPacket
{
ServerQuery type;
uint64_t ptr;
uint32_t extra;
};
enum { ServerQueryPacketSize = sizeof( ServerQueryPacket ) };
enum CpuArchitecture : uint8_t
{
CpuArchUnknown,
CpuArchX86,
CpuArchX64,
CpuArchArm32,
CpuArchArm64
};
struct WelcomeFlag
{
enum _t : uint8_t
{
OnDemand = 1 << 0,
IsApple = 1 << 1,
CodeTransfer = 1 << 2,
CombineSamples = 1 << 3,
IdentifySamples = 1 << 4,
};
};
struct WelcomeMessage
{
double timerMul;
int64_t initBegin;
int64_t initEnd;
uint64_t delay;
uint64_t resolution;
uint64_t epoch;
uint64_t exectime;
uint64_t pid;
int64_t samplingPeriod;
uint8_t flags;
uint8_t cpuArch;
char cpuManufacturer[12];
uint32_t cpuId;
char programName[WelcomeMessageProgramNameSize];
char hostInfo[WelcomeMessageHostInfoSize];
};
enum { WelcomeMessageSize = sizeof( WelcomeMessage ) };
struct OnDemandPayloadMessage
{
uint64_t frames;
uint64_t currentTime;
};
enum { OnDemandPayloadMessageSize = sizeof( OnDemandPayloadMessage ) };
struct BroadcastMessage
{
uint16_t broadcastVersion;
uint16_t listenPort;
uint32_t protocolVersion;
uint64_t pid;
int32_t activeTime; // in seconds
char programName[WelcomeMessageProgramNameSize];
};
struct BroadcastMessage_v2
{
uint16_t broadcastVersion;
uint16_t listenPort;
uint32_t protocolVersion;
int32_t activeTime;
char programName[WelcomeMessageProgramNameSize];
};
struct BroadcastMessage_v1
{
uint32_t broadcastVersion;
uint32_t protocolVersion;
uint32_t listenPort;
uint32_t activeTime;
char programName[WelcomeMessageProgramNameSize];
};
struct BroadcastMessage_v0
{
uint32_t broadcastVersion;
uint32_t protocolVersion;
uint32_t activeTime;
char programName[WelcomeMessageProgramNameSize];
};
enum { BroadcastMessageSize = sizeof( BroadcastMessage ) };
enum { BroadcastMessageSize_v2 = sizeof( BroadcastMessage_v2 ) };
enum { BroadcastMessageSize_v1 = sizeof( BroadcastMessage_v1 ) };
enum { BroadcastMessageSize_v0 = sizeof( BroadcastMessage_v0 ) };
#pragma pack( pop )
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyQueue.hpp | #ifndef __TRACYQUEUE_HPP__
#define __TRACYQUEUE_HPP__
#include <stddef.h>
#include <stdint.h>
namespace tracy
{
enum class QueueType : uint8_t
{
ZoneText,
ZoneName,
Message,
MessageColor,
MessageCallstack,
MessageColorCallstack,
MessageAppInfo,
ZoneBeginAllocSrcLoc,
ZoneBeginAllocSrcLocCallstack,
CallstackSerial,
Callstack,
CallstackAlloc,
CallstackSample,
CallstackSampleContextSwitch,
FrameImage,
ZoneBegin,
ZoneBeginCallstack,
ZoneEnd,
LockWait,
LockObtain,
LockRelease,
LockSharedWait,
LockSharedObtain,
LockSharedRelease,
LockName,
MemAlloc,
MemAllocNamed,
MemFree,
MemFreeNamed,
MemAllocCallstack,
MemAllocCallstackNamed,
MemFreeCallstack,
MemFreeCallstackNamed,
GpuZoneBegin,
GpuZoneBeginCallstack,
GpuZoneBeginAllocSrcLoc,
GpuZoneBeginAllocSrcLocCallstack,
GpuZoneEnd,
GpuZoneBeginSerial,
GpuZoneBeginCallstackSerial,
GpuZoneBeginAllocSrcLocSerial,
GpuZoneBeginAllocSrcLocCallstackSerial,
GpuZoneEndSerial,
PlotDataInt,
PlotDataFloat,
PlotDataDouble,
ContextSwitch,
ThreadWakeup,
GpuTime,
GpuContextName,
CallstackFrameSize,
SymbolInformation,
ExternalNameMetadata,
SymbolCodeMetadata,
SourceCodeMetadata,
FiberEnter,
FiberLeave,
Terminate,
KeepAlive,
ThreadContext,
GpuCalibration,
Crash,
CrashReport,
ZoneValidation,
ZoneColor,
ZoneValue,
FrameMarkMsg,
FrameMarkMsgStart,
FrameMarkMsgEnd,
FrameVsync,
SourceLocation,
LockAnnounce,
LockTerminate,
LockMark,
MessageLiteral,
MessageLiteralColor,
MessageLiteralCallstack,
MessageLiteralColorCallstack,
GpuNewContext,
CallstackFrame,
SysTimeReport,
TidToPid,
HwSampleCpuCycle,
HwSampleInstructionRetired,
HwSampleCacheReference,
HwSampleCacheMiss,
HwSampleBranchRetired,
HwSampleBranchMiss,
PlotConfig,
ParamSetup,
AckServerQueryNoop,
AckSourceCodeNotAvailable,
AckSymbolCodeNotAvailable,
CpuTopology,
SingleStringData,
SecondStringData,
MemNamePayload,
StringData,
ThreadName,
PlotName,
SourceLocationPayload,
CallstackPayload,
CallstackAllocPayload,
FrameName,
FrameImageData,
ExternalName,
ExternalThreadName,
SymbolCode,
SourceCode,
FiberName,
NUM_TYPES
};
#pragma pack( push, 1 )
struct QueueThreadContext
{
uint32_t thread;
};
struct QueueZoneBeginLean
{
int64_t time;
};
struct QueueZoneBegin : public QueueZoneBeginLean
{
uint64_t srcloc; // ptr
};
struct QueueZoneBeginThread : public QueueZoneBegin
{
uint32_t thread;
};
struct QueueZoneEnd
{
int64_t time;
};
struct QueueZoneEndThread : public QueueZoneEnd
{
uint32_t thread;
};
struct QueueZoneValidation
{
uint32_t id;
};
struct QueueZoneValidationThread : public QueueZoneValidation
{
uint32_t thread;
};
struct QueueZoneColor
{
uint8_t r;
uint8_t g;
uint8_t b;
};
struct QueueZoneColorThread : public QueueZoneColor
{
uint32_t thread;
};
struct QueueZoneValue
{
uint64_t value;
};
struct QueueZoneValueThread : public QueueZoneValue
{
uint32_t thread;
};
struct QueueStringTransfer
{
uint64_t ptr;
};
struct QueueFrameMark
{
int64_t time;
uint64_t name; // ptr
};
struct QueueFrameVsync
{
int64_t time;
uint32_t id;
};
struct QueueFrameImage
{
uint32_t frame;
uint16_t w;
uint16_t h;
uint8_t flip;
};
struct QueueFrameImageFat : public QueueFrameImage
{
uint64_t image; // ptr
};
struct QueueSourceLocation
{
uint64_t name;
uint64_t function; // ptr
uint64_t file; // ptr
uint32_t line;
uint8_t r;
uint8_t g;
uint8_t b;
};
struct QueueZoneTextFat
{
uint64_t text; // ptr
uint16_t size;
};
struct QueueZoneTextFatThread : public QueueZoneTextFat
{
uint32_t thread;
};
enum class LockType : uint8_t
{
Lockable,
SharedLockable
};
struct QueueLockAnnounce
{
uint32_t id;
int64_t time;
uint64_t lckloc; // ptr
LockType type;
};
struct QueueFiberEnter
{
int64_t time;
uint64_t fiber; // ptr
uint32_t thread;
};
struct QueueFiberLeave
{
int64_t time;
uint32_t thread;
};
struct QueueLockTerminate
{
uint32_t id;
int64_t time;
};
struct QueueLockWait
{
uint32_t thread;
uint32_t id;
int64_t time;
};
struct QueueLockObtain
{
uint32_t thread;
uint32_t id;
int64_t time;
};
struct QueueLockRelease
{
uint32_t id;
int64_t time;
};
struct QueueLockReleaseShared : public QueueLockRelease
{
uint32_t thread;
};
struct QueueLockMark
{
uint32_t thread;
uint32_t id;
uint64_t srcloc; // ptr
};
struct QueueLockName
{
uint32_t id;
};
struct QueueLockNameFat : public QueueLockName
{
uint64_t name; // ptr
uint16_t size;
};
struct QueuePlotDataBase
{
uint64_t name; // ptr
int64_t time;
};
struct QueuePlotDataInt : public QueuePlotDataBase
{
int64_t val;
};
struct QueuePlotDataFloat : public QueuePlotDataBase
{
float val;
};
struct QueuePlotDataDouble : public QueuePlotDataBase
{
double val;
};
struct QueueMessage
{
int64_t time;
};
struct QueueMessageColor : public QueueMessage
{
uint8_t r;
uint8_t g;
uint8_t b;
};
struct QueueMessageLiteral : public QueueMessage
{
uint64_t text; // ptr
};
struct QueueMessageLiteralThread : public QueueMessageLiteral
{
uint32_t thread;
};
struct QueueMessageColorLiteral : public QueueMessageColor
{
uint64_t text; // ptr
};
struct QueueMessageColorLiteralThread : public QueueMessageColorLiteral
{
uint32_t thread;
};
struct QueueMessageFat : public QueueMessage
{
uint64_t text; // ptr
uint16_t size;
};
struct QueueMessageFatThread : public QueueMessageFat
{
uint32_t thread;
};
struct QueueMessageColorFat : public QueueMessageColor
{
uint64_t text; // ptr
uint16_t size;
};
struct QueueMessageColorFatThread : public QueueMessageColorFat
{
uint32_t thread;
};
// Don't change order, only add new entries at the end, this is also used on trace dumps!
enum class GpuContextType : uint8_t
{
Invalid,
OpenGl,
Vulkan,
OpenCL,
Direct3D12,
Direct3D11
};
enum GpuContextFlags : uint8_t
{
GpuContextCalibration = 1 << 0
};
struct QueueGpuNewContext
{
int64_t cpuTime;
int64_t gpuTime;
uint32_t thread;
float period;
uint8_t context;
GpuContextFlags flags;
GpuContextType type;
};
struct QueueGpuZoneBeginLean
{
int64_t cpuTime;
uint32_t thread;
uint16_t queryId;
uint8_t context;
};
struct QueueGpuZoneBegin : public QueueGpuZoneBeginLean
{
uint64_t srcloc;
};
struct QueueGpuZoneEnd
{
int64_t cpuTime;
uint32_t thread;
uint16_t queryId;
uint8_t context;
};
struct QueueGpuTime
{
int64_t gpuTime;
uint16_t queryId;
uint8_t context;
};
struct QueueGpuCalibration
{
int64_t gpuTime;
int64_t cpuTime;
int64_t cpuDelta;
uint8_t context;
};
struct QueueGpuContextName
{
uint8_t context;
};
struct QueueGpuContextNameFat : public QueueGpuContextName
{
uint64_t ptr;
uint16_t size;
};
struct QueueMemNamePayload
{
uint64_t name;
};
struct QueueMemAlloc
{
int64_t time;
uint32_t thread;
uint64_t ptr;
char size[6];
};
struct QueueMemFree
{
int64_t time;
uint32_t thread;
uint64_t ptr;
};
struct QueueCallstackFat
{
uint64_t ptr;
};
struct QueueCallstackFatThread : public QueueCallstackFat
{
uint32_t thread;
};
struct QueueCallstackAllocFat
{
uint64_t ptr;
uint64_t nativePtr;
};
struct QueueCallstackAllocFatThread : public QueueCallstackAllocFat
{
uint32_t thread;
};
struct QueueCallstackSample
{
int64_t time;
uint32_t thread;
};
struct QueueCallstackSampleFat : public QueueCallstackSample
{
uint64_t ptr;
};
struct QueueCallstackFrameSize
{
uint64_t ptr;
uint8_t size;
};
struct QueueCallstackFrameSizeFat : public QueueCallstackFrameSize
{
uint64_t data;
uint64_t imageName;
};
struct QueueCallstackFrame
{
uint32_t line;
uint64_t symAddr;
uint32_t symLen;
};
struct QueueSymbolInformation
{
uint32_t line;
uint64_t symAddr;
};
struct QueueSymbolInformationFat : public QueueSymbolInformation
{
uint64_t fileString;
uint8_t needFree;
};
struct QueueCrashReport
{
int64_t time;
uint64_t text; // ptr
};
struct QueueCrashReportThread
{
uint32_t thread;
};
struct QueueSysTime
{
int64_t time;
float sysTime;
};
struct QueueContextSwitch
{
int64_t time;
uint32_t oldThread;
uint32_t newThread;
uint8_t cpu;
uint8_t reason;
uint8_t state;
};
struct QueueThreadWakeup
{
int64_t time;
uint32_t thread;
};
struct QueueTidToPid
{
uint64_t tid;
uint64_t pid;
};
struct QueueHwSample
{
uint64_t ip;
int64_t time;
};
enum class PlotFormatType : uint8_t
{
Number,
Memory,
Percentage
};
struct QueuePlotConfig
{
uint64_t name; // ptr
uint8_t type;
uint8_t step;
uint8_t fill;
uint32_t color;
};
struct QueueParamSetup
{
uint32_t idx;
uint64_t name; // ptr
uint8_t isBool;
int32_t val;
};
struct QueueSourceCodeNotAvailable
{
uint32_t id;
};
struct QueueCpuTopology
{
uint32_t package;
uint32_t core;
uint32_t thread;
};
struct QueueExternalNameMetadata
{
uint64_t thread;
uint64_t name;
uint64_t threadName;
};
struct QueueSymbolCodeMetadata
{
uint64_t symbol;
uint64_t ptr;
uint32_t size;
};
struct QueueSourceCodeMetadata
{
uint64_t ptr;
uint32_t size;
uint32_t id;
};
struct QueueHeader
{
union
{
QueueType type;
uint8_t idx;
};
};
struct QueueItem
{
QueueHeader hdr;
union
{
QueueThreadContext threadCtx;
QueueZoneBegin zoneBegin;
QueueZoneBeginLean zoneBeginLean;
QueueZoneBeginThread zoneBeginThread;
QueueZoneEnd zoneEnd;
QueueZoneEndThread zoneEndThread;
QueueZoneValidation zoneValidation;
QueueZoneValidationThread zoneValidationThread;
QueueZoneColor zoneColor;
QueueZoneColorThread zoneColorThread;
QueueZoneValue zoneValue;
QueueZoneValueThread zoneValueThread;
QueueStringTransfer stringTransfer;
QueueFrameMark frameMark;
QueueFrameVsync frameVsync;
QueueFrameImage frameImage;
QueueFrameImageFat frameImageFat;
QueueSourceLocation srcloc;
QueueZoneTextFat zoneTextFat;
QueueZoneTextFatThread zoneTextFatThread;
QueueLockAnnounce lockAnnounce;
QueueLockTerminate lockTerminate;
QueueLockWait lockWait;
QueueLockObtain lockObtain;
QueueLockRelease lockRelease;
QueueLockReleaseShared lockReleaseShared;
QueueLockMark lockMark;
QueueLockName lockName;
QueueLockNameFat lockNameFat;
QueuePlotDataInt plotDataInt;
QueuePlotDataFloat plotDataFloat;
QueuePlotDataDouble plotDataDouble;
QueueMessage message;
QueueMessageColor messageColor;
QueueMessageLiteral messageLiteral;
QueueMessageLiteralThread messageLiteralThread;
QueueMessageColorLiteral messageColorLiteral;
QueueMessageColorLiteralThread messageColorLiteralThread;
QueueMessageFat messageFat;
QueueMessageFatThread messageFatThread;
QueueMessageColorFat messageColorFat;
QueueMessageColorFatThread messageColorFatThread;
QueueGpuNewContext gpuNewContext;
QueueGpuZoneBegin gpuZoneBegin;
QueueGpuZoneBeginLean gpuZoneBeginLean;
QueueGpuZoneEnd gpuZoneEnd;
QueueGpuTime gpuTime;
QueueGpuCalibration gpuCalibration;
QueueGpuContextName gpuContextName;
QueueGpuContextNameFat gpuContextNameFat;
QueueMemAlloc memAlloc;
QueueMemFree memFree;
QueueMemNamePayload memName;
QueueCallstackFat callstackFat;
QueueCallstackFatThread callstackFatThread;
QueueCallstackAllocFat callstackAllocFat;
QueueCallstackAllocFatThread callstackAllocFatThread;
QueueCallstackSample callstackSample;
QueueCallstackSampleFat callstackSampleFat;
QueueCallstackFrameSize callstackFrameSize;
QueueCallstackFrameSizeFat callstackFrameSizeFat;
QueueCallstackFrame callstackFrame;
QueueSymbolInformation symbolInformation;
QueueSymbolInformationFat symbolInformationFat;
QueueCrashReport crashReport;
QueueCrashReportThread crashReportThread;
QueueSysTime sysTime;
QueueContextSwitch contextSwitch;
QueueThreadWakeup threadWakeup;
QueueTidToPid tidToPid;
QueueHwSample hwSample;
QueuePlotConfig plotConfig;
QueueParamSetup paramSetup;
QueueCpuTopology cpuTopology;
QueueExternalNameMetadata externalNameMetadata;
QueueSymbolCodeMetadata symbolCodeMetadata;
QueueSourceCodeMetadata sourceCodeMetadata;
QueueSourceCodeNotAvailable sourceCodeNotAvailable;
QueueFiberEnter fiberEnter;
QueueFiberLeave fiberLeave;
};
};
#pragma pack( pop )
enum { QueueItemSize = sizeof( QueueItem ) };
static constexpr size_t QueueDataSize[] = {
sizeof( QueueHeader ), // zone text
sizeof( QueueHeader ), // zone name
sizeof( QueueHeader ) + sizeof( QueueMessage ),
sizeof( QueueHeader ) + sizeof( QueueMessageColor ),
sizeof( QueueHeader ) + sizeof( QueueMessage ), // callstack
sizeof( QueueHeader ) + sizeof( QueueMessageColor ), // callstack
sizeof( QueueHeader ) + sizeof( QueueMessage ), // app info
sizeof( QueueHeader ) + sizeof( QueueZoneBeginLean ), // allocated source location
sizeof( QueueHeader ) + sizeof( QueueZoneBeginLean ), // allocated source location, callstack
sizeof( QueueHeader ), // callstack memory
sizeof( QueueHeader ), // callstack
sizeof( QueueHeader ), // callstack alloc
sizeof( QueueHeader ) + sizeof( QueueCallstackSample ),
sizeof( QueueHeader ) + sizeof( QueueCallstackSample ), // context switch
sizeof( QueueHeader ) + sizeof( QueueFrameImage ),
sizeof( QueueHeader ) + sizeof( QueueZoneBegin ),
sizeof( QueueHeader ) + sizeof( QueueZoneBegin ), // callstack
sizeof( QueueHeader ) + sizeof( QueueZoneEnd ),
sizeof( QueueHeader ) + sizeof( QueueLockWait ),
sizeof( QueueHeader ) + sizeof( QueueLockObtain ),
sizeof( QueueHeader ) + sizeof( QueueLockRelease ),
sizeof( QueueHeader ) + sizeof( QueueLockWait ), // shared
sizeof( QueueHeader ) + sizeof( QueueLockObtain ), // shared
sizeof( QueueHeader ) + sizeof( QueueLockReleaseShared ),
sizeof( QueueHeader ) + sizeof( QueueLockName ),
sizeof( QueueHeader ) + sizeof( QueueMemAlloc ),
sizeof( QueueHeader ) + sizeof( QueueMemAlloc ), // named
sizeof( QueueHeader ) + sizeof( QueueMemFree ),
sizeof( QueueHeader ) + sizeof( QueueMemFree ), // named
sizeof( QueueHeader ) + sizeof( QueueMemAlloc ), // callstack
sizeof( QueueHeader ) + sizeof( QueueMemAlloc ), // callstack, named
sizeof( QueueHeader ) + sizeof( QueueMemFree ), // callstack
sizeof( QueueHeader ) + sizeof( QueueMemFree ), // callstack, named
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBegin ),
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBegin ), // callstack
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBeginLean ),// allocated source location
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBeginLean ),// allocated source location, callstack
sizeof( QueueHeader ) + sizeof( QueueGpuZoneEnd ),
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBegin ), // serial
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBegin ), // serial, callstack
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBeginLean ),// serial, allocated source location
sizeof( QueueHeader ) + sizeof( QueueGpuZoneBeginLean ),// serial, allocated source location, callstack
sizeof( QueueHeader ) + sizeof( QueueGpuZoneEnd ), // serial
sizeof( QueueHeader ) + sizeof( QueuePlotDataInt ),
sizeof( QueueHeader ) + sizeof( QueuePlotDataFloat ),
sizeof( QueueHeader ) + sizeof( QueuePlotDataDouble ),
sizeof( QueueHeader ) + sizeof( QueueContextSwitch ),
sizeof( QueueHeader ) + sizeof( QueueThreadWakeup ),
sizeof( QueueHeader ) + sizeof( QueueGpuTime ),
sizeof( QueueHeader ) + sizeof( QueueGpuContextName ),
sizeof( QueueHeader ) + sizeof( QueueCallstackFrameSize ),
sizeof( QueueHeader ) + sizeof( QueueSymbolInformation ),
sizeof( QueueHeader ), // ExternalNameMetadata - not for wire transfer
sizeof( QueueHeader ), // SymbolCodeMetadata - not for wire transfer
sizeof( QueueHeader ), // SourceCodeMetadata - not for wire transfer
sizeof( QueueHeader ) + sizeof( QueueFiberEnter ),
sizeof( QueueHeader ) + sizeof( QueueFiberLeave ),
// above items must be first
sizeof( QueueHeader ), // terminate
sizeof( QueueHeader ), // keep alive
sizeof( QueueHeader ) + sizeof( QueueThreadContext ),
sizeof( QueueHeader ) + sizeof( QueueGpuCalibration ),
sizeof( QueueHeader ), // crash
sizeof( QueueHeader ) + sizeof( QueueCrashReport ),
sizeof( QueueHeader ) + sizeof( QueueZoneValidation ),
sizeof( QueueHeader ) + sizeof( QueueZoneColor ),
sizeof( QueueHeader ) + sizeof( QueueZoneValue ),
sizeof( QueueHeader ) + sizeof( QueueFrameMark ), // continuous frames
sizeof( QueueHeader ) + sizeof( QueueFrameMark ), // start
sizeof( QueueHeader ) + sizeof( QueueFrameMark ), // end
sizeof( QueueHeader ) + sizeof( QueueFrameVsync ),
sizeof( QueueHeader ) + sizeof( QueueSourceLocation ),
sizeof( QueueHeader ) + sizeof( QueueLockAnnounce ),
sizeof( QueueHeader ) + sizeof( QueueLockTerminate ),
sizeof( QueueHeader ) + sizeof( QueueLockMark ),
sizeof( QueueHeader ) + sizeof( QueueMessageLiteral ),
sizeof( QueueHeader ) + sizeof( QueueMessageColorLiteral ),
sizeof( QueueHeader ) + sizeof( QueueMessageLiteral ), // callstack
sizeof( QueueHeader ) + sizeof( QueueMessageColorLiteral ), // callstack
sizeof( QueueHeader ) + sizeof( QueueGpuNewContext ),
sizeof( QueueHeader ) + sizeof( QueueCallstackFrame ),
sizeof( QueueHeader ) + sizeof( QueueSysTime ),
sizeof( QueueHeader ) + sizeof( QueueTidToPid ),
sizeof( QueueHeader ) + sizeof( QueueHwSample ), // cpu cycle
sizeof( QueueHeader ) + sizeof( QueueHwSample ), // instruction retired
sizeof( QueueHeader ) + sizeof( QueueHwSample ), // cache reference
sizeof( QueueHeader ) + sizeof( QueueHwSample ), // cache miss
sizeof( QueueHeader ) + sizeof( QueueHwSample ), // branch retired
sizeof( QueueHeader ) + sizeof( QueueHwSample ), // branch miss
sizeof( QueueHeader ) + sizeof( QueuePlotConfig ),
sizeof( QueueHeader ) + sizeof( QueueParamSetup ),
sizeof( QueueHeader ), // server query acknowledgement
sizeof( QueueHeader ) + sizeof( QueueSourceCodeNotAvailable ),
sizeof( QueueHeader ), // symbol code not available
sizeof( QueueHeader ) + sizeof( QueueCpuTopology ),
sizeof( QueueHeader ), // single string data
sizeof( QueueHeader ), // second string data
sizeof( QueueHeader ) + sizeof( QueueMemNamePayload ),
// keep all QueueStringTransfer below
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // string data
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // thread name
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // plot name
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // allocated source location payload
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // callstack payload
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // callstack alloc payload
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // frame name
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // frame image data
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // external name
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // external thread name
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // symbol code
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // source code
sizeof( QueueHeader ) + sizeof( QueueStringTransfer ), // fiber name
};
static_assert( QueueItemSize == 32, "Queue item size not 32 bytes" );
static_assert( sizeof( QueueDataSize ) / sizeof( size_t ) == (uint8_t)QueueType::NUM_TYPES, "QueueDataSize mismatch" );
static_assert( sizeof( void* ) <= sizeof( uint64_t ), "Pointer size > 8 bytes" );
static_assert( sizeof( void* ) == sizeof( uintptr_t ), "Pointer size != uintptr_t" );
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyStackFrames.hpp | #ifndef __TRACYSTACKFRAMES_HPP__
#define __TRACYSTACKFRAMES_HPP__
#include <stddef.h>
namespace tracy
{
struct StringMatch
{
const char* str;
size_t len;
};
extern const char** s_tracyStackFrames;
extern const StringMatch* s_tracySkipSubframes;
static constexpr int s_tracySkipSubframesMinLen = 7;
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyForceInline.hpp | #ifndef __TRACYFORCEINLINE_HPP__
#define __TRACYFORCEINLINE_HPP__
#if defined(__GNUC__)
# define tracy_force_inline __attribute__((always_inline)) inline
#elif defined(_MSC_VER)
# define tracy_force_inline __forceinline
#else
# define tracy_force_inline inline
#endif
#if defined(__GNUC__)
# define tracy_no_inline __attribute__((noinline))
#elif defined(_MSC_VER)
# define tracy_no_inline __declspec(noinline)
#else
# define tracy_no_inline
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracySocket.hpp | #ifndef __TRACYSOCKET_HPP__
#define __TRACYSOCKET_HPP__
#include <atomic>
#include <stddef.h>
#include <stdint.h>
struct addrinfo;
struct sockaddr;
namespace tracy
{
#ifdef _WIN32
void InitWinSock();
#endif
class Socket
{
public:
Socket();
Socket( int sock );
~Socket();
bool Connect( const char* addr, uint16_t port );
bool ConnectBlocking( const char* addr, uint16_t port );
void Close();
int Send( const void* buf, int len );
int GetSendBufSize();
int ReadUpTo( void* buf, int len, int timeout );
bool Read( void* buf, int len, int timeout );
template<typename ShouldExit>
bool Read( void* buf, int len, int timeout, ShouldExit exitCb )
{
auto cbuf = (char*)buf;
while( len > 0 )
{
if( exitCb() ) return false;
if( !ReadImpl( cbuf, len, timeout ) ) return false;
}
return true;
}
bool ReadRaw( void* buf, int len, int timeout );
bool HasData();
bool IsValid() const;
Socket( const Socket& ) = delete;
Socket( Socket&& ) = delete;
Socket& operator=( const Socket& ) = delete;
Socket& operator=( Socket&& ) = delete;
private:
int RecvBuffered( void* buf, int len, int timeout );
int Recv( void* buf, int len, int timeout );
bool ReadImpl( char*& buf, int& len, int timeout );
char* m_buf;
char* m_bufPtr;
std::atomic<int> m_sock;
int m_bufLeft;
struct addrinfo *m_res;
struct addrinfo *m_ptr;
int m_connSock;
};
class ListenSocket
{
public:
ListenSocket();
~ListenSocket();
bool Listen( uint16_t port, int backlog );
Socket* Accept();
void Close();
ListenSocket( const ListenSocket& ) = delete;
ListenSocket( ListenSocket&& ) = delete;
ListenSocket& operator=( const ListenSocket& ) = delete;
ListenSocket& operator=( ListenSocket&& ) = delete;
private:
int m_sock;
};
class UdpBroadcast
{
public:
UdpBroadcast();
~UdpBroadcast();
bool Open( const char* addr, uint16_t port );
void Close();
int Send( uint16_t port, const void* data, int len );
UdpBroadcast( const UdpBroadcast& ) = delete;
UdpBroadcast( UdpBroadcast&& ) = delete;
UdpBroadcast& operator=( const UdpBroadcast& ) = delete;
UdpBroadcast& operator=( UdpBroadcast&& ) = delete;
private:
int m_sock;
uint32_t m_addr;
};
class IpAddress
{
public:
IpAddress();
~IpAddress();
void Set( const struct sockaddr& addr );
uint32_t GetNumber() const { return m_number; }
const char* GetText() const { return m_text; }
IpAddress( const IpAddress& ) = delete;
IpAddress( IpAddress&& ) = delete;
IpAddress& operator=( const IpAddress& ) = delete;
IpAddress& operator=( IpAddress&& ) = delete;
private:
uint32_t m_number;
char m_text[17];
};
class UdpListen
{
public:
UdpListen();
~UdpListen();
bool Listen( uint16_t port );
void Close();
const char* Read( size_t& len, IpAddress& addr, int timeout );
UdpListen( const UdpListen& ) = delete;
UdpListen( UdpListen&& ) = delete;
UdpListen& operator=( const UdpListen& ) = delete;
UdpListen& operator=( UdpListen&& ) = delete;
private:
int m_sock;
};
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/tracy_lz4hc.cpp | /*
LZ4 HC - High Compression Mode of LZ4
Copyright (C) 2011-2020, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- LZ4 source repository : https://github.com/lz4/lz4
- LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
*/
/* note : lz4hc is not an independent module, it requires lz4.h/lz4.c for proper compilation */
/* *************************************
* Tuning Parameter
***************************************/
/*! HEAPMODE :
* Select how default compression function will allocate workplace memory,
* in stack (0:fastest), or in heap (1:requires malloc()).
* Since workplace is rather large, heap mode is recommended.
**/
#ifndef LZ4HC_HEAPMODE
# define LZ4HC_HEAPMODE 1
#endif
/*=== Dependency ===*/
#define LZ4_HC_STATIC_LINKING_ONLY
#include "tracy_lz4hc.hpp"
/*=== Common definitions ===*/
#if defined(__GNUC__)
# pragma GCC diagnostic ignored "-Wunused-function"
#endif
#if defined (__clang__)
# pragma clang diagnostic ignored "-Wunused-function"
#endif
#define LZ4_COMMONDEFS_ONLY
#ifndef LZ4_SRC_INCLUDED
#include "tracy_lz4.cpp" /* LZ4_count, constants, mem */
#endif
/*=== Enums ===*/
typedef enum { noDictCtx, usingDictCtxHc } dictCtx_directive;
/*=== Constants ===*/
#define OPTIMAL_ML (int)((ML_MASK-1)+MINMATCH)
#define LZ4_OPT_NUM (1<<12)
/*=== Macros ===*/
#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
#define MAX(a,b) ( (a) > (b) ? (a) : (b) )
#define HASH_FUNCTION(i) (((i) * 2654435761U) >> ((MINMATCH*8)-LZ4HC_HASH_LOG))
#define DELTANEXTMAXD(p) chainTable[(p) & LZ4HC_MAXD_MASK] /* flexible, LZ4HC_MAXD dependent */
#define DELTANEXTU16(table, pos) table[(U16)(pos)] /* faster */
/* Make fields passed to, and updated by LZ4HC_encodeSequence explicit */
#define UPDATABLE(ip, op, anchor) &ip, &op, &anchor
namespace tracy
{
static U32 LZ4HC_hashPtr(const void* ptr) { return HASH_FUNCTION(LZ4_read32(ptr)); }
/**************************************
* HC Compression
**************************************/
static void LZ4HC_clearTables (LZ4HC_CCtx_internal* hc4)
{
MEM_INIT(hc4->hashTable, 0, sizeof(hc4->hashTable));
MEM_INIT(hc4->chainTable, 0xFF, sizeof(hc4->chainTable));
}
static void LZ4HC_init_internal (LZ4HC_CCtx_internal* hc4, const BYTE* start)
{
size_t const bufferSize = (size_t)(hc4->end - hc4->prefixStart);
size_t newStartingOffset = bufferSize + hc4->dictLimit;
assert(newStartingOffset >= bufferSize); /* check overflow */
if (newStartingOffset > 1 GB) {
LZ4HC_clearTables(hc4);
newStartingOffset = 0;
}
newStartingOffset += 64 KB;
hc4->nextToUpdate = (U32)newStartingOffset;
hc4->prefixStart = start;
hc4->end = start;
hc4->dictStart = start;
hc4->dictLimit = (U32)newStartingOffset;
hc4->lowLimit = (U32)newStartingOffset;
}
/* Update chains up to ip (excluded) */
LZ4_FORCE_INLINE void LZ4HC_Insert (LZ4HC_CCtx_internal* hc4, const BYTE* ip)
{
U16* const chainTable = hc4->chainTable;
U32* const hashTable = hc4->hashTable;
const BYTE* const prefixPtr = hc4->prefixStart;
U32 const prefixIdx = hc4->dictLimit;
U32 const target = (U32)(ip - prefixPtr) + prefixIdx;
U32 idx = hc4->nextToUpdate;
assert(ip >= prefixPtr);
assert(target >= prefixIdx);
while (idx < target) {
U32 const h = LZ4HC_hashPtr(prefixPtr+idx-prefixIdx);
size_t delta = idx - hashTable[h];
if (delta>LZ4_DISTANCE_MAX) delta = LZ4_DISTANCE_MAX;
DELTANEXTU16(chainTable, idx) = (U16)delta;
hashTable[h] = idx;
idx++;
}
hc4->nextToUpdate = target;
}
/** LZ4HC_countBack() :
* @return : negative value, nb of common bytes before ip/match */
LZ4_FORCE_INLINE
int LZ4HC_countBack(const BYTE* const ip, const BYTE* const match,
const BYTE* const iMin, const BYTE* const mMin)
{
int back = 0;
int const min = (int)MAX(iMin - ip, mMin - match);
assert(min <= 0);
assert(ip >= iMin); assert((size_t)(ip-iMin) < (1U<<31));
assert(match >= mMin); assert((size_t)(match - mMin) < (1U<<31));
while ( (back > min)
&& (ip[back-1] == match[back-1]) )
back--;
return back;
}
#if defined(_MSC_VER)
# define LZ4HC_rotl32(x,r) _rotl(x,r)
#else
# define LZ4HC_rotl32(x,r) ((x << r) | (x >> (32 - r)))
#endif
static U32 LZ4HC_rotatePattern(size_t const rotate, U32 const pattern)
{
size_t const bitsToRotate = (rotate & (sizeof(pattern) - 1)) << 3;
if (bitsToRotate == 0) return pattern;
return LZ4HC_rotl32(pattern, (int)bitsToRotate);
}
/* LZ4HC_countPattern() :
* pattern32 must be a sample of repetitive pattern of length 1, 2 or 4 (but not 3!) */
static unsigned
LZ4HC_countPattern(const BYTE* ip, const BYTE* const iEnd, U32 const pattern32)
{
const BYTE* const iStart = ip;
reg_t const pattern = (sizeof(pattern)==8) ?
(reg_t)pattern32 + (((reg_t)pattern32) << (sizeof(pattern)*4)) : pattern32;
while (likely(ip < iEnd-(sizeof(pattern)-1))) {
reg_t const diff = LZ4_read_ARCH(ip) ^ pattern;
if (!diff) { ip+=sizeof(pattern); continue; }
ip += LZ4_NbCommonBytes(diff);
return (unsigned)(ip - iStart);
}
if (LZ4_isLittleEndian()) {
reg_t patternByte = pattern;
while ((ip<iEnd) && (*ip == (BYTE)patternByte)) {
ip++; patternByte >>= 8;
}
} else { /* big endian */
U32 bitOffset = (sizeof(pattern)*8) - 8;
while (ip < iEnd) {
BYTE const byte = (BYTE)(pattern >> bitOffset);
if (*ip != byte) break;
ip ++; bitOffset -= 8;
} }
return (unsigned)(ip - iStart);
}
/* LZ4HC_reverseCountPattern() :
* pattern must be a sample of repetitive pattern of length 1, 2 or 4 (but not 3!)
* read using natural platform endianness */
static unsigned
LZ4HC_reverseCountPattern(const BYTE* ip, const BYTE* const iLow, U32 pattern)
{
const BYTE* const iStart = ip;
while (likely(ip >= iLow+4)) {
if (LZ4_read32(ip-4) != pattern) break;
ip -= 4;
}
{ const BYTE* bytePtr = (const BYTE*)(&pattern) + 3; /* works for any endianness */
while (likely(ip>iLow)) {
if (ip[-1] != *bytePtr) break;
ip--; bytePtr--;
} }
return (unsigned)(iStart - ip);
}
/* LZ4HC_protectDictEnd() :
* Checks if the match is in the last 3 bytes of the dictionary, so reading the
* 4 byte MINMATCH would overflow.
* @returns true if the match index is okay.
*/
static int LZ4HC_protectDictEnd(U32 const dictLimit, U32 const matchIndex)
{
return ((U32)((dictLimit - 1) - matchIndex) >= 3);
}
typedef enum { rep_untested, rep_not, rep_confirmed } repeat_state_e;
typedef enum { favorCompressionRatio=0, favorDecompressionSpeed } HCfavor_e;
LZ4_FORCE_INLINE int
LZ4HC_InsertAndGetWiderMatch (
LZ4HC_CCtx_internal* const hc4,
const BYTE* const ip,
const BYTE* const iLowLimit, const BYTE* const iHighLimit,
int longest,
const BYTE** matchpos,
const BYTE** startpos,
const int maxNbAttempts,
const int patternAnalysis, const int chainSwap,
const dictCtx_directive dict,
const HCfavor_e favorDecSpeed)
{
U16* const chainTable = hc4->chainTable;
U32* const HashTable = hc4->hashTable;
const LZ4HC_CCtx_internal * const dictCtx = hc4->dictCtx;
const BYTE* const prefixPtr = hc4->prefixStart;
const U32 prefixIdx = hc4->dictLimit;
const U32 ipIndex = (U32)(ip - prefixPtr) + prefixIdx;
const int withinStartDistance = (hc4->lowLimit + (LZ4_DISTANCE_MAX + 1) > ipIndex);
const U32 lowestMatchIndex = (withinStartDistance) ? hc4->lowLimit : ipIndex - LZ4_DISTANCE_MAX;
const BYTE* const dictStart = hc4->dictStart;
const U32 dictIdx = hc4->lowLimit;
const BYTE* const dictEnd = dictStart + prefixIdx - dictIdx;
int const lookBackLength = (int)(ip-iLowLimit);
int nbAttempts = maxNbAttempts;
U32 matchChainPos = 0;
U32 const pattern = LZ4_read32(ip);
U32 matchIndex;
repeat_state_e repeat = rep_untested;
size_t srcPatternLength = 0;
DEBUGLOG(7, "LZ4HC_InsertAndGetWiderMatch");
/* First Match */
LZ4HC_Insert(hc4, ip);
matchIndex = HashTable[LZ4HC_hashPtr(ip)];
DEBUGLOG(7, "First match at index %u / %u (lowestMatchIndex)",
matchIndex, lowestMatchIndex);
while ((matchIndex>=lowestMatchIndex) && (nbAttempts>0)) {
int matchLength=0;
nbAttempts--;
assert(matchIndex < ipIndex);
if (favorDecSpeed && (ipIndex - matchIndex < 8)) {
/* do nothing */
} else if (matchIndex >= prefixIdx) { /* within current Prefix */
const BYTE* const matchPtr = prefixPtr + matchIndex - prefixIdx;
assert(matchPtr < ip);
assert(longest >= 1);
if (LZ4_read16(iLowLimit + longest - 1) == LZ4_read16(matchPtr - lookBackLength + longest - 1)) {
if (LZ4_read32(matchPtr) == pattern) {
int const back = lookBackLength ? LZ4HC_countBack(ip, matchPtr, iLowLimit, prefixPtr) : 0;
matchLength = MINMATCH + (int)LZ4_count(ip+MINMATCH, matchPtr+MINMATCH, iHighLimit);
matchLength -= back;
if (matchLength > longest) {
longest = matchLength;
*matchpos = matchPtr + back;
*startpos = ip + back;
} } }
} else { /* lowestMatchIndex <= matchIndex < dictLimit */
const BYTE* const matchPtr = dictStart + (matchIndex - dictIdx);
assert(matchIndex >= dictIdx);
if ( likely(matchIndex <= prefixIdx - 4)
&& (LZ4_read32(matchPtr) == pattern) ) {
int back = 0;
const BYTE* vLimit = ip + (prefixIdx - matchIndex);
if (vLimit > iHighLimit) vLimit = iHighLimit;
matchLength = (int)LZ4_count(ip+MINMATCH, matchPtr+MINMATCH, vLimit) + MINMATCH;
if ((ip+matchLength == vLimit) && (vLimit < iHighLimit))
matchLength += LZ4_count(ip+matchLength, prefixPtr, iHighLimit);
back = lookBackLength ? LZ4HC_countBack(ip, matchPtr, iLowLimit, dictStart) : 0;
matchLength -= back;
if (matchLength > longest) {
longest = matchLength;
*matchpos = prefixPtr - prefixIdx + matchIndex + back; /* virtual pos, relative to ip, to retrieve offset */
*startpos = ip + back;
} } }
if (chainSwap && matchLength==longest) { /* better match => select a better chain */
assert(lookBackLength==0); /* search forward only */
if (matchIndex + (U32)longest <= ipIndex) {
int const kTrigger = 4;
U32 distanceToNextMatch = 1;
int const end = longest - MINMATCH + 1;
int step = 1;
int accel = 1 << kTrigger;
int pos;
for (pos = 0; pos < end; pos += step) {
U32 const candidateDist = DELTANEXTU16(chainTable, matchIndex + (U32)pos);
step = (accel++ >> kTrigger);
if (candidateDist > distanceToNextMatch) {
distanceToNextMatch = candidateDist;
matchChainPos = (U32)pos;
accel = 1 << kTrigger;
} }
if (distanceToNextMatch > 1) {
if (distanceToNextMatch > matchIndex) break; /* avoid overflow */
matchIndex -= distanceToNextMatch;
continue;
} } }
{ U32 const distNextMatch = DELTANEXTU16(chainTable, matchIndex);
if (patternAnalysis && distNextMatch==1 && matchChainPos==0) {
U32 const matchCandidateIdx = matchIndex-1;
/* may be a repeated pattern */
if (repeat == rep_untested) {
if ( ((pattern & 0xFFFF) == (pattern >> 16))
& ((pattern & 0xFF) == (pattern >> 24)) ) {
repeat = rep_confirmed;
srcPatternLength = LZ4HC_countPattern(ip+sizeof(pattern), iHighLimit, pattern) + sizeof(pattern);
} else {
repeat = rep_not;
} }
if ( (repeat == rep_confirmed) && (matchCandidateIdx >= lowestMatchIndex)
&& LZ4HC_protectDictEnd(prefixIdx, matchCandidateIdx) ) {
const int extDict = matchCandidateIdx < prefixIdx;
const BYTE* const matchPtr = (extDict ? dictStart - dictIdx : prefixPtr - prefixIdx) + matchCandidateIdx;
if (LZ4_read32(matchPtr) == pattern) { /* good candidate */
const BYTE* const iLimit = extDict ? dictEnd : iHighLimit;
size_t forwardPatternLength = LZ4HC_countPattern(matchPtr+sizeof(pattern), iLimit, pattern) + sizeof(pattern);
if (extDict && matchPtr + forwardPatternLength == iLimit) {
U32 const rotatedPattern = LZ4HC_rotatePattern(forwardPatternLength, pattern);
forwardPatternLength += LZ4HC_countPattern(prefixPtr, iHighLimit, rotatedPattern);
}
{ const BYTE* const lowestMatchPtr = extDict ? dictStart : prefixPtr;
size_t backLength = LZ4HC_reverseCountPattern(matchPtr, lowestMatchPtr, pattern);
size_t currentSegmentLength;
if (!extDict
&& matchPtr - backLength == prefixPtr
&& dictIdx < prefixIdx) {
U32 const rotatedPattern = LZ4HC_rotatePattern((U32)(-(int)backLength), pattern);
backLength += LZ4HC_reverseCountPattern(dictEnd, dictStart, rotatedPattern);
}
/* Limit backLength not go further than lowestMatchIndex */
backLength = matchCandidateIdx - MAX(matchCandidateIdx - (U32)backLength, lowestMatchIndex);
assert(matchCandidateIdx - backLength >= lowestMatchIndex);
currentSegmentLength = backLength + forwardPatternLength;
/* Adjust to end of pattern if the source pattern fits, otherwise the beginning of the pattern */
if ( (currentSegmentLength >= srcPatternLength) /* current pattern segment large enough to contain full srcPatternLength */
&& (forwardPatternLength <= srcPatternLength) ) { /* haven't reached this position yet */
U32 const newMatchIndex = matchCandidateIdx + (U32)forwardPatternLength - (U32)srcPatternLength; /* best position, full pattern, might be followed by more match */
if (LZ4HC_protectDictEnd(prefixIdx, newMatchIndex))
matchIndex = newMatchIndex;
else {
/* Can only happen if started in the prefix */
assert(newMatchIndex >= prefixIdx - 3 && newMatchIndex < prefixIdx && !extDict);
matchIndex = prefixIdx;
}
} else {
U32 const newMatchIndex = matchCandidateIdx - (U32)backLength; /* farthest position in current segment, will find a match of length currentSegmentLength + maybe some back */
if (!LZ4HC_protectDictEnd(prefixIdx, newMatchIndex)) {
assert(newMatchIndex >= prefixIdx - 3 && newMatchIndex < prefixIdx && !extDict);
matchIndex = prefixIdx;
} else {
matchIndex = newMatchIndex;
if (lookBackLength==0) { /* no back possible */
size_t const maxML = MIN(currentSegmentLength, srcPatternLength);
if ((size_t)longest < maxML) {
assert(prefixPtr - prefixIdx + matchIndex != ip);
if ((size_t)(ip - prefixPtr) + prefixIdx - matchIndex > LZ4_DISTANCE_MAX) break;
assert(maxML < 2 GB);
longest = (int)maxML;
*matchpos = prefixPtr - prefixIdx + matchIndex; /* virtual pos, relative to ip, to retrieve offset */
*startpos = ip;
}
{ U32 const distToNextPattern = DELTANEXTU16(chainTable, matchIndex);
if (distToNextPattern > matchIndex) break; /* avoid overflow */
matchIndex -= distToNextPattern;
} } } } }
continue;
} }
} } /* PA optimization */
/* follow current chain */
matchIndex -= DELTANEXTU16(chainTable, matchIndex + matchChainPos);
} /* while ((matchIndex>=lowestMatchIndex) && (nbAttempts)) */
if ( dict == usingDictCtxHc
&& nbAttempts > 0
&& ipIndex - lowestMatchIndex < LZ4_DISTANCE_MAX) {
size_t const dictEndOffset = (size_t)(dictCtx->end - dictCtx->prefixStart) + dictCtx->dictLimit;
U32 dictMatchIndex = dictCtx->hashTable[LZ4HC_hashPtr(ip)];
assert(dictEndOffset <= 1 GB);
matchIndex = dictMatchIndex + lowestMatchIndex - (U32)dictEndOffset;
while (ipIndex - matchIndex <= LZ4_DISTANCE_MAX && nbAttempts--) {
const BYTE* const matchPtr = dictCtx->prefixStart - dictCtx->dictLimit + dictMatchIndex;
if (LZ4_read32(matchPtr) == pattern) {
int mlt;
int back = 0;
const BYTE* vLimit = ip + (dictEndOffset - dictMatchIndex);
if (vLimit > iHighLimit) vLimit = iHighLimit;
mlt = (int)LZ4_count(ip+MINMATCH, matchPtr+MINMATCH, vLimit) + MINMATCH;
back = lookBackLength ? LZ4HC_countBack(ip, matchPtr, iLowLimit, dictCtx->prefixStart) : 0;
mlt -= back;
if (mlt > longest) {
longest = mlt;
*matchpos = prefixPtr - prefixIdx + matchIndex + back;
*startpos = ip + back;
} }
{ U32 const nextOffset = DELTANEXTU16(dictCtx->chainTable, dictMatchIndex);
dictMatchIndex -= nextOffset;
matchIndex -= nextOffset;
} } }
return longest;
}
LZ4_FORCE_INLINE int
LZ4HC_InsertAndFindBestMatch(LZ4HC_CCtx_internal* const hc4, /* Index table will be updated */
const BYTE* const ip, const BYTE* const iLimit,
const BYTE** matchpos,
const int maxNbAttempts,
const int patternAnalysis,
const dictCtx_directive dict)
{
const BYTE* uselessPtr = ip;
/* note : LZ4HC_InsertAndGetWiderMatch() is able to modify the starting position of a match (*startpos),
* but this won't be the case here, as we define iLowLimit==ip,
* so LZ4HC_InsertAndGetWiderMatch() won't be allowed to search past ip */
return LZ4HC_InsertAndGetWiderMatch(hc4, ip, ip, iLimit, MINMATCH-1, matchpos, &uselessPtr, maxNbAttempts, patternAnalysis, 0 /*chainSwap*/, dict, favorCompressionRatio);
}
/* LZ4HC_encodeSequence() :
* @return : 0 if ok,
* 1 if buffer issue detected */
LZ4_FORCE_INLINE int LZ4HC_encodeSequence (
const BYTE** _ip,
BYTE** _op,
const BYTE** _anchor,
int matchLength,
const BYTE* const match,
limitedOutput_directive limit,
BYTE* oend)
{
#define ip (*_ip)
#define op (*_op)
#define anchor (*_anchor)
size_t length;
BYTE* const token = op++;
#if defined(LZ4_DEBUG) && (LZ4_DEBUG >= 6)
static const BYTE* start = NULL;
static U32 totalCost = 0;
U32 const pos = (start==NULL) ? 0 : (U32)(anchor - start);
U32 const ll = (U32)(ip - anchor);
U32 const llAdd = (ll>=15) ? ((ll-15) / 255) + 1 : 0;
U32 const mlAdd = (matchLength>=19) ? ((matchLength-19) / 255) + 1 : 0;
U32 const cost = 1 + llAdd + ll + 2 + mlAdd;
if (start==NULL) start = anchor; /* only works for single segment */
/* g_debuglog_enable = (pos >= 2228) & (pos <= 2262); */
DEBUGLOG(6, "pos:%7u -- literals:%4u, match:%4i, offset:%5u, cost:%4u + %5u",
pos,
(U32)(ip - anchor), matchLength, (U32)(ip-match),
cost, totalCost);
totalCost += cost;
#endif
/* Encode Literal length */
length = (size_t)(ip - anchor);
LZ4_STATIC_ASSERT(notLimited == 0);
/* Check output limit */
if (limit && ((op + (length / 255) + length + (2 + 1 + LASTLITERALS)) > oend)) {
DEBUGLOG(6, "Not enough room to write %i literals (%i bytes remaining)",
(int)length, (int)(oend - op));
return 1;
}
if (length >= RUN_MASK) {
size_t len = length - RUN_MASK;
*token = (RUN_MASK << ML_BITS);
for(; len >= 255 ; len -= 255) *op++ = 255;
*op++ = (BYTE)len;
} else {
*token = (BYTE)(length << ML_BITS);
}
/* Copy Literals */
LZ4_wildCopy8(op, anchor, op + length);
op += length;
/* Encode Offset */
assert( (ip - match) <= LZ4_DISTANCE_MAX ); /* note : consider providing offset as a value, rather than as a pointer difference */
LZ4_writeLE16(op, (U16)(ip - match)); op += 2;
/* Encode MatchLength */
assert(matchLength >= MINMATCH);
length = (size_t)matchLength - MINMATCH;
if (limit && (op + (length / 255) + (1 + LASTLITERALS) > oend)) {
DEBUGLOG(6, "Not enough room to write match length");
return 1; /* Check output limit */
}
if (length >= ML_MASK) {
*token += ML_MASK;
length -= ML_MASK;
for(; length >= 510 ; length -= 510) { *op++ = 255; *op++ = 255; }
if (length >= 255) { length -= 255; *op++ = 255; }
*op++ = (BYTE)length;
} else {
*token += (BYTE)(length);
}
/* Prepare next loop */
ip += matchLength;
anchor = ip;
return 0;
}
#undef ip
#undef op
#undef anchor
LZ4_FORCE_INLINE int LZ4HC_compress_hashChain (
LZ4HC_CCtx_internal* const ctx,
const char* const source,
char* const dest,
int* srcSizePtr,
int const maxOutputSize,
int maxNbAttempts,
const limitedOutput_directive limit,
const dictCtx_directive dict
)
{
const int inputSize = *srcSizePtr;
const int patternAnalysis = (maxNbAttempts > 128); /* levels 9+ */
const BYTE* ip = (const BYTE*) source;
const BYTE* anchor = ip;
const BYTE* const iend = ip + inputSize;
const BYTE* const mflimit = iend - MFLIMIT;
const BYTE* const matchlimit = (iend - LASTLITERALS);
BYTE* optr = (BYTE*) dest;
BYTE* op = (BYTE*) dest;
BYTE* oend = op + maxOutputSize;
int ml0, ml, ml2, ml3;
const BYTE* start0;
const BYTE* ref0;
const BYTE* ref = NULL;
const BYTE* start2 = NULL;
const BYTE* ref2 = NULL;
const BYTE* start3 = NULL;
const BYTE* ref3 = NULL;
/* init */
*srcSizePtr = 0;
if (limit == fillOutput) oend -= LASTLITERALS; /* Hack for support LZ4 format restriction */
if (inputSize < LZ4_minLength) goto _last_literals; /* Input too small, no compression (all literals) */
/* Main Loop */
while (ip <= mflimit) {
ml = LZ4HC_InsertAndFindBestMatch(ctx, ip, matchlimit, &ref, maxNbAttempts, patternAnalysis, dict);
if (ml<MINMATCH) { ip++; continue; }
/* saved, in case we would skip too much */
start0 = ip; ref0 = ref; ml0 = ml;
_Search2:
if (ip+ml <= mflimit) {
ml2 = LZ4HC_InsertAndGetWiderMatch(ctx,
ip + ml - 2, ip + 0, matchlimit, ml, &ref2, &start2,
maxNbAttempts, patternAnalysis, 0, dict, favorCompressionRatio);
} else {
ml2 = ml;
}
if (ml2 == ml) { /* No better match => encode ML1 */
optr = op;
if (LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml, ref, limit, oend)) goto _dest_overflow;
continue;
}
if (start0 < ip) { /* first match was skipped at least once */
if (start2 < ip + ml0) { /* squeezing ML1 between ML0(original ML1) and ML2 */
ip = start0; ref = ref0; ml = ml0; /* restore initial ML1 */
} }
/* Here, start0==ip */
if ((start2 - ip) < 3) { /* First Match too small : removed */
ml = ml2;
ip = start2;
ref =ref2;
goto _Search2;
}
_Search3:
/* At this stage, we have :
* ml2 > ml1, and
* ip1+3 <= ip2 (usually < ip1+ml1) */
if ((start2 - ip) < OPTIMAL_ML) {
int correction;
int new_ml = ml;
if (new_ml > OPTIMAL_ML) new_ml = OPTIMAL_ML;
if (ip+new_ml > start2 + ml2 - MINMATCH) new_ml = (int)(start2 - ip) + ml2 - MINMATCH;
correction = new_ml - (int)(start2 - ip);
if (correction > 0) {
start2 += correction;
ref2 += correction;
ml2 -= correction;
}
}
/* Now, we have start2 = ip+new_ml, with new_ml = min(ml, OPTIMAL_ML=18) */
if (start2 + ml2 <= mflimit) {
ml3 = LZ4HC_InsertAndGetWiderMatch(ctx,
start2 + ml2 - 3, start2, matchlimit, ml2, &ref3, &start3,
maxNbAttempts, patternAnalysis, 0, dict, favorCompressionRatio);
} else {
ml3 = ml2;
}
if (ml3 == ml2) { /* No better match => encode ML1 and ML2 */
/* ip & ref are known; Now for ml */
if (start2 < ip+ml) ml = (int)(start2 - ip);
/* Now, encode 2 sequences */
optr = op;
if (LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml, ref, limit, oend)) goto _dest_overflow;
ip = start2;
optr = op;
if (LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml2, ref2, limit, oend)) {
ml = ml2;
ref = ref2;
goto _dest_overflow;
}
continue;
}
if (start3 < ip+ml+3) { /* Not enough space for match 2 : remove it */
if (start3 >= (ip+ml)) { /* can write Seq1 immediately ==> Seq2 is removed, so Seq3 becomes Seq1 */
if (start2 < ip+ml) {
int correction = (int)(ip+ml - start2);
start2 += correction;
ref2 += correction;
ml2 -= correction;
if (ml2 < MINMATCH) {
start2 = start3;
ref2 = ref3;
ml2 = ml3;
}
}
optr = op;
if (LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml, ref, limit, oend)) goto _dest_overflow;
ip = start3;
ref = ref3;
ml = ml3;
start0 = start2;
ref0 = ref2;
ml0 = ml2;
goto _Search2;
}
start2 = start3;
ref2 = ref3;
ml2 = ml3;
goto _Search3;
}
/*
* OK, now we have 3 ascending matches;
* let's write the first one ML1.
* ip & ref are known; Now decide ml.
*/
if (start2 < ip+ml) {
if ((start2 - ip) < OPTIMAL_ML) {
int correction;
if (ml > OPTIMAL_ML) ml = OPTIMAL_ML;
if (ip + ml > start2 + ml2 - MINMATCH) ml = (int)(start2 - ip) + ml2 - MINMATCH;
correction = ml - (int)(start2 - ip);
if (correction > 0) {
start2 += correction;
ref2 += correction;
ml2 -= correction;
}
} else {
ml = (int)(start2 - ip);
}
}
optr = op;
if (LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml, ref, limit, oend)) goto _dest_overflow;
/* ML2 becomes ML1 */
ip = start2; ref = ref2; ml = ml2;
/* ML3 becomes ML2 */
start2 = start3; ref2 = ref3; ml2 = ml3;
/* let's find a new ML3 */
goto _Search3;
}
_last_literals:
/* Encode Last Literals */
{ size_t lastRunSize = (size_t)(iend - anchor); /* literals */
size_t llAdd = (lastRunSize + 255 - RUN_MASK) / 255;
size_t const totalSize = 1 + llAdd + lastRunSize;
if (limit == fillOutput) oend += LASTLITERALS; /* restore correct value */
if (limit && (op + totalSize > oend)) {
if (limit == limitedOutput) return 0;
/* adapt lastRunSize to fill 'dest' */
lastRunSize = (size_t)(oend - op) - 1 /*token*/;
llAdd = (lastRunSize + 256 - RUN_MASK) / 256;
lastRunSize -= llAdd;
}
DEBUGLOG(6, "Final literal run : %i literals", (int)lastRunSize);
ip = anchor + lastRunSize; /* can be != iend if limit==fillOutput */
if (lastRunSize >= RUN_MASK) {
size_t accumulator = lastRunSize - RUN_MASK;
*op++ = (RUN_MASK << ML_BITS);
for(; accumulator >= 255 ; accumulator -= 255) *op++ = 255;
*op++ = (BYTE) accumulator;
} else {
*op++ = (BYTE)(lastRunSize << ML_BITS);
}
LZ4_memcpy(op, anchor, lastRunSize);
op += lastRunSize;
}
/* End */
*srcSizePtr = (int) (((const char*)ip) - source);
return (int) (((char*)op)-dest);
_dest_overflow:
if (limit == fillOutput) {
/* Assumption : ip, anchor, ml and ref must be set correctly */
size_t const ll = (size_t)(ip - anchor);
size_t const ll_addbytes = (ll + 240) / 255;
size_t const ll_totalCost = 1 + ll_addbytes + ll;
BYTE* const maxLitPos = oend - 3; /* 2 for offset, 1 for token */
DEBUGLOG(6, "Last sequence overflowing");
op = optr; /* restore correct out pointer */
if (op + ll_totalCost <= maxLitPos) {
/* ll validated; now adjust match length */
size_t const bytesLeftForMl = (size_t)(maxLitPos - (op+ll_totalCost));
size_t const maxMlSize = MINMATCH + (ML_MASK-1) + (bytesLeftForMl * 255);
assert(maxMlSize < INT_MAX); assert(ml >= 0);
if ((size_t)ml > maxMlSize) ml = (int)maxMlSize;
if ((oend + LASTLITERALS) - (op + ll_totalCost + 2) - 1 + ml >= MFLIMIT) {
LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml, ref, notLimited, oend);
} }
goto _last_literals;
}
/* compression failed */
return 0;
}
static int LZ4HC_compress_optimal( LZ4HC_CCtx_internal* ctx,
const char* const source, char* dst,
int* srcSizePtr, int dstCapacity,
int const nbSearches, size_t sufficient_len,
const limitedOutput_directive limit, int const fullUpdate,
const dictCtx_directive dict,
const HCfavor_e favorDecSpeed);
LZ4_FORCE_INLINE int LZ4HC_compress_generic_internal (
LZ4HC_CCtx_internal* const ctx,
const char* const src,
char* const dst,
int* const srcSizePtr,
int const dstCapacity,
int cLevel,
const limitedOutput_directive limit,
const dictCtx_directive dict
)
{
typedef enum { lz4hc, lz4opt } lz4hc_strat_e;
typedef struct {
lz4hc_strat_e strat;
int nbSearches;
U32 targetLength;
} cParams_t;
static const cParams_t clTable[LZ4HC_CLEVEL_MAX+1] = {
{ lz4hc, 2, 16 }, /* 0, unused */
{ lz4hc, 2, 16 }, /* 1, unused */
{ lz4hc, 2, 16 }, /* 2, unused */
{ lz4hc, 4, 16 }, /* 3 */
{ lz4hc, 8, 16 }, /* 4 */
{ lz4hc, 16, 16 }, /* 5 */
{ lz4hc, 32, 16 }, /* 6 */
{ lz4hc, 64, 16 }, /* 7 */
{ lz4hc, 128, 16 }, /* 8 */
{ lz4hc, 256, 16 }, /* 9 */
{ lz4opt, 96, 64 }, /*10==LZ4HC_CLEVEL_OPT_MIN*/
{ lz4opt, 512,128 }, /*11 */
{ lz4opt,16384,LZ4_OPT_NUM }, /* 12==LZ4HC_CLEVEL_MAX */
};
DEBUGLOG(4, "LZ4HC_compress_generic(ctx=%p, src=%p, srcSize=%d, limit=%d)",
ctx, src, *srcSizePtr, limit);
if (limit == fillOutput && dstCapacity < 1) return 0; /* Impossible to store anything */
if ((U32)*srcSizePtr > (U32)LZ4_MAX_INPUT_SIZE) return 0; /* Unsupported input size (too large or negative) */
ctx->end += *srcSizePtr;
if (cLevel < 1) cLevel = LZ4HC_CLEVEL_DEFAULT; /* note : convention is different from lz4frame, maybe something to review */
cLevel = MIN(LZ4HC_CLEVEL_MAX, cLevel);
{ cParams_t const cParam = clTable[cLevel];
HCfavor_e const favor = ctx->favorDecSpeed ? favorDecompressionSpeed : favorCompressionRatio;
int result;
if (cParam.strat == lz4hc) {
result = LZ4HC_compress_hashChain(ctx,
src, dst, srcSizePtr, dstCapacity,
cParam.nbSearches, limit, dict);
} else {
assert(cParam.strat == lz4opt);
result = LZ4HC_compress_optimal(ctx,
src, dst, srcSizePtr, dstCapacity,
cParam.nbSearches, cParam.targetLength, limit,
cLevel == LZ4HC_CLEVEL_MAX, /* ultra mode */
dict, favor);
}
if (result <= 0) ctx->dirty = 1;
return result;
}
}
static void LZ4HC_setExternalDict(LZ4HC_CCtx_internal* ctxPtr, const BYTE* newBlock);
static int
LZ4HC_compress_generic_noDictCtx (
LZ4HC_CCtx_internal* const ctx,
const char* const src,
char* const dst,
int* const srcSizePtr,
int const dstCapacity,
int cLevel,
limitedOutput_directive limit
)
{
assert(ctx->dictCtx == NULL);
return LZ4HC_compress_generic_internal(ctx, src, dst, srcSizePtr, dstCapacity, cLevel, limit, noDictCtx);
}
static int
LZ4HC_compress_generic_dictCtx (
LZ4HC_CCtx_internal* const ctx,
const char* const src,
char* const dst,
int* const srcSizePtr,
int const dstCapacity,
int cLevel,
limitedOutput_directive limit
)
{
const size_t position = (size_t)(ctx->end - ctx->prefixStart) + (ctx->dictLimit - ctx->lowLimit);
assert(ctx->dictCtx != NULL);
if (position >= 64 KB) {
ctx->dictCtx = NULL;
return LZ4HC_compress_generic_noDictCtx(ctx, src, dst, srcSizePtr, dstCapacity, cLevel, limit);
} else if (position == 0 && *srcSizePtr > 4 KB) {
LZ4_memcpy(ctx, ctx->dictCtx, sizeof(LZ4HC_CCtx_internal));
LZ4HC_setExternalDict(ctx, (const BYTE *)src);
ctx->compressionLevel = (short)cLevel;
return LZ4HC_compress_generic_noDictCtx(ctx, src, dst, srcSizePtr, dstCapacity, cLevel, limit);
} else {
return LZ4HC_compress_generic_internal(ctx, src, dst, srcSizePtr, dstCapacity, cLevel, limit, usingDictCtxHc);
}
}
static int
LZ4HC_compress_generic (
LZ4HC_CCtx_internal* const ctx,
const char* const src,
char* const dst,
int* const srcSizePtr,
int const dstCapacity,
int cLevel,
limitedOutput_directive limit
)
{
if (ctx->dictCtx == NULL) {
return LZ4HC_compress_generic_noDictCtx(ctx, src, dst, srcSizePtr, dstCapacity, cLevel, limit);
} else {
return LZ4HC_compress_generic_dictCtx(ctx, src, dst, srcSizePtr, dstCapacity, cLevel, limit);
}
}
int LZ4_sizeofStateHC(void) { return (int)sizeof(LZ4_streamHC_t); }
static size_t LZ4_streamHC_t_alignment(void)
{
#if LZ4_ALIGN_TEST
typedef struct { char c; LZ4_streamHC_t t; } t_a;
return sizeof(t_a) - sizeof(LZ4_streamHC_t);
#else
return 1; /* effectively disabled */
#endif
}
/* state is presumed correctly initialized,
* in which case its size and alignment have already been validate */
int LZ4_compress_HC_extStateHC_fastReset (void* state, const char* src, char* dst, int srcSize, int dstCapacity, int compressionLevel)
{
LZ4HC_CCtx_internal* const ctx = &((LZ4_streamHC_t*)state)->internal_donotuse;
if (!LZ4_isAligned(state, LZ4_streamHC_t_alignment())) return 0;
LZ4_resetStreamHC_fast((LZ4_streamHC_t*)state, compressionLevel);
LZ4HC_init_internal (ctx, (const BYTE*)src);
if (dstCapacity < LZ4_compressBound(srcSize))
return LZ4HC_compress_generic (ctx, src, dst, &srcSize, dstCapacity, compressionLevel, limitedOutput);
else
return LZ4HC_compress_generic (ctx, src, dst, &srcSize, dstCapacity, compressionLevel, notLimited);
}
int LZ4_compress_HC_extStateHC (void* state, const char* src, char* dst, int srcSize, int dstCapacity, int compressionLevel)
{
LZ4_streamHC_t* const ctx = LZ4_initStreamHC(state, sizeof(*ctx));
if (ctx==NULL) return 0; /* init failure */
return LZ4_compress_HC_extStateHC_fastReset(state, src, dst, srcSize, dstCapacity, compressionLevel);
}
int LZ4_compress_HC(const char* src, char* dst, int srcSize, int dstCapacity, int compressionLevel)
{
int cSize;
#if defined(LZ4HC_HEAPMODE) && LZ4HC_HEAPMODE==1
LZ4_streamHC_t* const statePtr = (LZ4_streamHC_t*)ALLOC(sizeof(LZ4_streamHC_t));
if (statePtr==NULL) return 0;
#else
LZ4_streamHC_t state;
LZ4_streamHC_t* const statePtr = &state;
#endif
cSize = LZ4_compress_HC_extStateHC(statePtr, src, dst, srcSize, dstCapacity, compressionLevel);
#if defined(LZ4HC_HEAPMODE) && LZ4HC_HEAPMODE==1
FREEMEM(statePtr);
#endif
return cSize;
}
/* state is presumed sized correctly (>= sizeof(LZ4_streamHC_t)) */
int LZ4_compress_HC_destSize(void* state, const char* source, char* dest, int* sourceSizePtr, int targetDestSize, int cLevel)
{
LZ4_streamHC_t* const ctx = LZ4_initStreamHC(state, sizeof(*ctx));
if (ctx==NULL) return 0; /* init failure */
LZ4HC_init_internal(&ctx->internal_donotuse, (const BYTE*) source);
LZ4_setCompressionLevel(ctx, cLevel);
return LZ4HC_compress_generic(&ctx->internal_donotuse, source, dest, sourceSizePtr, targetDestSize, cLevel, fillOutput);
}
/**************************************
* Streaming Functions
**************************************/
/* allocation */
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
LZ4_streamHC_t* LZ4_createStreamHC(void)
{
LZ4_streamHC_t* const state =
(LZ4_streamHC_t*)ALLOC_AND_ZERO(sizeof(LZ4_streamHC_t));
if (state == NULL) return NULL;
LZ4_setCompressionLevel(state, LZ4HC_CLEVEL_DEFAULT);
return state;
}
int LZ4_freeStreamHC (LZ4_streamHC_t* LZ4_streamHCPtr)
{
DEBUGLOG(4, "LZ4_freeStreamHC(%p)", LZ4_streamHCPtr);
if (!LZ4_streamHCPtr) return 0; /* support free on NULL */
FREEMEM(LZ4_streamHCPtr);
return 0;
}
#endif
LZ4_streamHC_t* LZ4_initStreamHC (void* buffer, size_t size)
{
LZ4_streamHC_t* const LZ4_streamHCPtr = (LZ4_streamHC_t*)buffer;
DEBUGLOG(4, "LZ4_initStreamHC(%p, %u)", buffer, (unsigned)size);
/* check conditions */
if (buffer == NULL) return NULL;
if (size < sizeof(LZ4_streamHC_t)) return NULL;
if (!LZ4_isAligned(buffer, LZ4_streamHC_t_alignment())) return NULL;
/* init */
{ LZ4HC_CCtx_internal* const hcstate = &(LZ4_streamHCPtr->internal_donotuse);
MEM_INIT(hcstate, 0, sizeof(*hcstate)); }
LZ4_setCompressionLevel(LZ4_streamHCPtr, LZ4HC_CLEVEL_DEFAULT);
return LZ4_streamHCPtr;
}
/* just a stub */
void LZ4_resetStreamHC (LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel)
{
LZ4_initStreamHC(LZ4_streamHCPtr, sizeof(*LZ4_streamHCPtr));
LZ4_setCompressionLevel(LZ4_streamHCPtr, compressionLevel);
}
void LZ4_resetStreamHC_fast (LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel)
{
DEBUGLOG(4, "LZ4_resetStreamHC_fast(%p, %d)", LZ4_streamHCPtr, compressionLevel);
if (LZ4_streamHCPtr->internal_donotuse.dirty) {
LZ4_initStreamHC(LZ4_streamHCPtr, sizeof(*LZ4_streamHCPtr));
} else {
/* preserve end - prefixStart : can trigger clearTable's threshold */
if (LZ4_streamHCPtr->internal_donotuse.end != NULL) {
LZ4_streamHCPtr->internal_donotuse.end -= (uptrval)LZ4_streamHCPtr->internal_donotuse.prefixStart;
} else {
assert(LZ4_streamHCPtr->internal_donotuse.prefixStart == NULL);
}
LZ4_streamHCPtr->internal_donotuse.prefixStart = NULL;
LZ4_streamHCPtr->internal_donotuse.dictCtx = NULL;
}
LZ4_setCompressionLevel(LZ4_streamHCPtr, compressionLevel);
}
void LZ4_setCompressionLevel(LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel)
{
DEBUGLOG(5, "LZ4_setCompressionLevel(%p, %d)", LZ4_streamHCPtr, compressionLevel);
if (compressionLevel < 1) compressionLevel = LZ4HC_CLEVEL_DEFAULT;
if (compressionLevel > LZ4HC_CLEVEL_MAX) compressionLevel = LZ4HC_CLEVEL_MAX;
LZ4_streamHCPtr->internal_donotuse.compressionLevel = (short)compressionLevel;
}
void LZ4_favorDecompressionSpeed(LZ4_streamHC_t* LZ4_streamHCPtr, int favor)
{
LZ4_streamHCPtr->internal_donotuse.favorDecSpeed = (favor!=0);
}
/* LZ4_loadDictHC() :
* LZ4_streamHCPtr is presumed properly initialized */
int LZ4_loadDictHC (LZ4_streamHC_t* LZ4_streamHCPtr,
const char* dictionary, int dictSize)
{
LZ4HC_CCtx_internal* const ctxPtr = &LZ4_streamHCPtr->internal_donotuse;
DEBUGLOG(4, "LZ4_loadDictHC(ctx:%p, dict:%p, dictSize:%d)", LZ4_streamHCPtr, dictionary, dictSize);
assert(LZ4_streamHCPtr != NULL);
if (dictSize > 64 KB) {
dictionary += (size_t)dictSize - 64 KB;
dictSize = 64 KB;
}
/* need a full initialization, there are bad side-effects when using resetFast() */
{ int const cLevel = ctxPtr->compressionLevel;
LZ4_initStreamHC(LZ4_streamHCPtr, sizeof(*LZ4_streamHCPtr));
LZ4_setCompressionLevel(LZ4_streamHCPtr, cLevel);
}
LZ4HC_init_internal (ctxPtr, (const BYTE*)dictionary);
ctxPtr->end = (const BYTE*)dictionary + dictSize;
if (dictSize >= 4) LZ4HC_Insert (ctxPtr, ctxPtr->end-3);
return dictSize;
}
void LZ4_attach_HC_dictionary(LZ4_streamHC_t *working_stream, const LZ4_streamHC_t *dictionary_stream) {
working_stream->internal_donotuse.dictCtx = dictionary_stream != NULL ? &(dictionary_stream->internal_donotuse) : NULL;
}
/* compression */
static void LZ4HC_setExternalDict(LZ4HC_CCtx_internal* ctxPtr, const BYTE* newBlock)
{
DEBUGLOG(4, "LZ4HC_setExternalDict(%p, %p)", ctxPtr, newBlock);
if (ctxPtr->end >= ctxPtr->prefixStart + 4)
LZ4HC_Insert (ctxPtr, ctxPtr->end-3); /* Referencing remaining dictionary content */
/* Only one memory segment for extDict, so any previous extDict is lost at this stage */
ctxPtr->lowLimit = ctxPtr->dictLimit;
ctxPtr->dictStart = ctxPtr->prefixStart;
ctxPtr->dictLimit += (U32)(ctxPtr->end - ctxPtr->prefixStart);
ctxPtr->prefixStart = newBlock;
ctxPtr->end = newBlock;
ctxPtr->nextToUpdate = ctxPtr->dictLimit; /* match referencing will resume from there */
/* cannot reference an extDict and a dictCtx at the same time */
ctxPtr->dictCtx = NULL;
}
static int
LZ4_compressHC_continue_generic (LZ4_streamHC_t* LZ4_streamHCPtr,
const char* src, char* dst,
int* srcSizePtr, int dstCapacity,
limitedOutput_directive limit)
{
LZ4HC_CCtx_internal* const ctxPtr = &LZ4_streamHCPtr->internal_donotuse;
DEBUGLOG(5, "LZ4_compressHC_continue_generic(ctx=%p, src=%p, srcSize=%d, limit=%d)",
LZ4_streamHCPtr, src, *srcSizePtr, limit);
assert(ctxPtr != NULL);
/* auto-init if forgotten */
if (ctxPtr->prefixStart == NULL) LZ4HC_init_internal (ctxPtr, (const BYTE*) src);
/* Check overflow */
if ((size_t)(ctxPtr->end - ctxPtr->prefixStart) + ctxPtr->dictLimit > 2 GB) {
size_t dictSize = (size_t)(ctxPtr->end - ctxPtr->prefixStart);
if (dictSize > 64 KB) dictSize = 64 KB;
LZ4_loadDictHC(LZ4_streamHCPtr, (const char*)(ctxPtr->end) - dictSize, (int)dictSize);
}
/* Check if blocks follow each other */
if ((const BYTE*)src != ctxPtr->end)
LZ4HC_setExternalDict(ctxPtr, (const BYTE*)src);
/* Check overlapping input/dictionary space */
{ const BYTE* sourceEnd = (const BYTE*) src + *srcSizePtr;
const BYTE* const dictBegin = ctxPtr->dictStart;
const BYTE* const dictEnd = ctxPtr->dictStart + (ctxPtr->dictLimit - ctxPtr->lowLimit);
if ((sourceEnd > dictBegin) && ((const BYTE*)src < dictEnd)) {
if (sourceEnd > dictEnd) sourceEnd = dictEnd;
ctxPtr->lowLimit += (U32)(sourceEnd - ctxPtr->dictStart);
ctxPtr->dictStart += (U32)(sourceEnd - ctxPtr->dictStart);
if (ctxPtr->dictLimit - ctxPtr->lowLimit < 4) {
ctxPtr->lowLimit = ctxPtr->dictLimit;
ctxPtr->dictStart = ctxPtr->prefixStart;
} } }
return LZ4HC_compress_generic (ctxPtr, src, dst, srcSizePtr, dstCapacity, ctxPtr->compressionLevel, limit);
}
int LZ4_compress_HC_continue (LZ4_streamHC_t* LZ4_streamHCPtr, const char* src, char* dst, int srcSize, int dstCapacity)
{
if (dstCapacity < LZ4_compressBound(srcSize))
return LZ4_compressHC_continue_generic (LZ4_streamHCPtr, src, dst, &srcSize, dstCapacity, limitedOutput);
else
return LZ4_compressHC_continue_generic (LZ4_streamHCPtr, src, dst, &srcSize, dstCapacity, notLimited);
}
int LZ4_compress_HC_continue_destSize (LZ4_streamHC_t* LZ4_streamHCPtr, const char* src, char* dst, int* srcSizePtr, int targetDestSize)
{
return LZ4_compressHC_continue_generic(LZ4_streamHCPtr, src, dst, srcSizePtr, targetDestSize, fillOutput);
}
/* LZ4_saveDictHC :
* save history content
* into a user-provided buffer
* which is then used to continue compression
*/
int LZ4_saveDictHC (LZ4_streamHC_t* LZ4_streamHCPtr, char* safeBuffer, int dictSize)
{
LZ4HC_CCtx_internal* const streamPtr = &LZ4_streamHCPtr->internal_donotuse;
int const prefixSize = (int)(streamPtr->end - streamPtr->prefixStart);
DEBUGLOG(5, "LZ4_saveDictHC(%p, %p, %d)", LZ4_streamHCPtr, safeBuffer, dictSize);
assert(prefixSize >= 0);
if (dictSize > 64 KB) dictSize = 64 KB;
if (dictSize < 4) dictSize = 0;
if (dictSize > prefixSize) dictSize = prefixSize;
if (safeBuffer == NULL) assert(dictSize == 0);
if (dictSize > 0)
LZ4_memmove(safeBuffer, streamPtr->end - dictSize, dictSize);
{ U32 const endIndex = (U32)(streamPtr->end - streamPtr->prefixStart) + streamPtr->dictLimit;
streamPtr->end = (const BYTE*)safeBuffer + dictSize;
streamPtr->prefixStart = streamPtr->end - dictSize;
streamPtr->dictLimit = endIndex - (U32)dictSize;
streamPtr->lowLimit = endIndex - (U32)dictSize;
streamPtr->dictStart = streamPtr->prefixStart;
if (streamPtr->nextToUpdate < streamPtr->dictLimit)
streamPtr->nextToUpdate = streamPtr->dictLimit;
}
return dictSize;
}
/***************************************************
* Deprecated Functions
***************************************************/
/* These functions currently generate deprecation warnings */
/* Wrappers for deprecated compression functions */
int LZ4_compressHC(const char* src, char* dst, int srcSize) { return LZ4_compress_HC (src, dst, srcSize, LZ4_compressBound(srcSize), 0); }
int LZ4_compressHC_limitedOutput(const char* src, char* dst, int srcSize, int maxDstSize) { return LZ4_compress_HC(src, dst, srcSize, maxDstSize, 0); }
int LZ4_compressHC2(const char* src, char* dst, int srcSize, int cLevel) { return LZ4_compress_HC (src, dst, srcSize, LZ4_compressBound(srcSize), cLevel); }
int LZ4_compressHC2_limitedOutput(const char* src, char* dst, int srcSize, int maxDstSize, int cLevel) { return LZ4_compress_HC(src, dst, srcSize, maxDstSize, cLevel); }
int LZ4_compressHC_withStateHC (void* state, const char* src, char* dst, int srcSize) { return LZ4_compress_HC_extStateHC (state, src, dst, srcSize, LZ4_compressBound(srcSize), 0); }
int LZ4_compressHC_limitedOutput_withStateHC (void* state, const char* src, char* dst, int srcSize, int maxDstSize) { return LZ4_compress_HC_extStateHC (state, src, dst, srcSize, maxDstSize, 0); }
int LZ4_compressHC2_withStateHC (void* state, const char* src, char* dst, int srcSize, int cLevel) { return LZ4_compress_HC_extStateHC(state, src, dst, srcSize, LZ4_compressBound(srcSize), cLevel); }
int LZ4_compressHC2_limitedOutput_withStateHC (void* state, const char* src, char* dst, int srcSize, int maxDstSize, int cLevel) { return LZ4_compress_HC_extStateHC(state, src, dst, srcSize, maxDstSize, cLevel); }
int LZ4_compressHC_continue (LZ4_streamHC_t* ctx, const char* src, char* dst, int srcSize) { return LZ4_compress_HC_continue (ctx, src, dst, srcSize, LZ4_compressBound(srcSize)); }
int LZ4_compressHC_limitedOutput_continue (LZ4_streamHC_t* ctx, const char* src, char* dst, int srcSize, int maxDstSize) { return LZ4_compress_HC_continue (ctx, src, dst, srcSize, maxDstSize); }
/* Deprecated streaming functions */
int LZ4_sizeofStreamStateHC(void) { return sizeof(LZ4_streamHC_t); }
/* state is presumed correctly sized, aka >= sizeof(LZ4_streamHC_t)
* @return : 0 on success, !=0 if error */
int LZ4_resetStreamStateHC(void* state, char* inputBuffer)
{
LZ4_streamHC_t* const hc4 = LZ4_initStreamHC(state, sizeof(*hc4));
if (hc4 == NULL) return 1; /* init failed */
LZ4HC_init_internal (&hc4->internal_donotuse, (const BYTE*)inputBuffer);
return 0;
}
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
void* LZ4_createHC (const char* inputBuffer)
{
LZ4_streamHC_t* const hc4 = LZ4_createStreamHC();
if (hc4 == NULL) return NULL; /* not enough memory */
LZ4HC_init_internal (&hc4->internal_donotuse, (const BYTE*)inputBuffer);
return hc4;
}
int LZ4_freeHC (void* LZ4HC_Data)
{
if (!LZ4HC_Data) return 0; /* support free on NULL */
FREEMEM(LZ4HC_Data);
return 0;
}
#endif
int LZ4_compressHC2_continue (void* LZ4HC_Data, const char* src, char* dst, int srcSize, int cLevel)
{
return LZ4HC_compress_generic (&((LZ4_streamHC_t*)LZ4HC_Data)->internal_donotuse, src, dst, &srcSize, 0, cLevel, notLimited);
}
int LZ4_compressHC2_limitedOutput_continue (void* LZ4HC_Data, const char* src, char* dst, int srcSize, int dstCapacity, int cLevel)
{
return LZ4HC_compress_generic (&((LZ4_streamHC_t*)LZ4HC_Data)->internal_donotuse, src, dst, &srcSize, dstCapacity, cLevel, limitedOutput);
}
char* LZ4_slideInputBufferHC(void* LZ4HC_Data)
{
LZ4_streamHC_t* const ctx = (LZ4_streamHC_t*)LZ4HC_Data;
const BYTE* bufferStart = ctx->internal_donotuse.prefixStart - ctx->internal_donotuse.dictLimit + ctx->internal_donotuse.lowLimit;
LZ4_resetStreamHC_fast(ctx, ctx->internal_donotuse.compressionLevel);
/* avoid const char * -> char * conversion warning :( */
return (char*)(uptrval)bufferStart;
}
/* ================================================
* LZ4 Optimal parser (levels [LZ4HC_CLEVEL_OPT_MIN - LZ4HC_CLEVEL_MAX])
* ===============================================*/
typedef struct {
int price;
int off;
int mlen;
int litlen;
} LZ4HC_optimal_t;
/* price in bytes */
LZ4_FORCE_INLINE int LZ4HC_literalsPrice(int const litlen)
{
int price = litlen;
assert(litlen >= 0);
if (litlen >= (int)RUN_MASK)
price += 1 + ((litlen-(int)RUN_MASK) / 255);
return price;
}
/* requires mlen >= MINMATCH */
LZ4_FORCE_INLINE int LZ4HC_sequencePrice(int litlen, int mlen)
{
int price = 1 + 2 ; /* token + 16-bit offset */
assert(litlen >= 0);
assert(mlen >= MINMATCH);
price += LZ4HC_literalsPrice(litlen);
if (mlen >= (int)(ML_MASK+MINMATCH))
price += 1 + ((mlen-(int)(ML_MASK+MINMATCH)) / 255);
return price;
}
typedef struct {
int off;
int len;
} LZ4HC_match_t;
LZ4_FORCE_INLINE LZ4HC_match_t
LZ4HC_FindLongerMatch(LZ4HC_CCtx_internal* const ctx,
const BYTE* ip, const BYTE* const iHighLimit,
int minLen, int nbSearches,
const dictCtx_directive dict,
const HCfavor_e favorDecSpeed)
{
LZ4HC_match_t match = { 0 , 0 };
const BYTE* matchPtr = NULL;
/* note : LZ4HC_InsertAndGetWiderMatch() is able to modify the starting position of a match (*startpos),
* but this won't be the case here, as we define iLowLimit==ip,
* so LZ4HC_InsertAndGetWiderMatch() won't be allowed to search past ip */
int matchLength = LZ4HC_InsertAndGetWiderMatch(ctx, ip, ip, iHighLimit, minLen, &matchPtr, &ip, nbSearches, 1 /*patternAnalysis*/, 1 /*chainSwap*/, dict, favorDecSpeed);
if (matchLength <= minLen) return match;
if (favorDecSpeed) {
if ((matchLength>18) & (matchLength<=36)) matchLength=18; /* favor shortcut */
}
match.len = matchLength;
match.off = (int)(ip-matchPtr);
return match;
}
static int LZ4HC_compress_optimal ( LZ4HC_CCtx_internal* ctx,
const char* const source,
char* dst,
int* srcSizePtr,
int dstCapacity,
int const nbSearches,
size_t sufficient_len,
const limitedOutput_directive limit,
int const fullUpdate,
const dictCtx_directive dict,
const HCfavor_e favorDecSpeed)
{
int retval = 0;
#define TRAILING_LITERALS 3
#if defined(LZ4HC_HEAPMODE) && LZ4HC_HEAPMODE==1
LZ4HC_optimal_t* const opt = (LZ4HC_optimal_t*)ALLOC(sizeof(LZ4HC_optimal_t) * (LZ4_OPT_NUM + TRAILING_LITERALS));
#else
LZ4HC_optimal_t opt[LZ4_OPT_NUM + TRAILING_LITERALS]; /* ~64 KB, which is a bit large for stack... */
#endif
const BYTE* ip = (const BYTE*) source;
const BYTE* anchor = ip;
const BYTE* const iend = ip + *srcSizePtr;
const BYTE* const mflimit = iend - MFLIMIT;
const BYTE* const matchlimit = iend - LASTLITERALS;
BYTE* op = (BYTE*) dst;
BYTE* opSaved = (BYTE*) dst;
BYTE* oend = op + dstCapacity;
int ovml = MINMATCH; /* overflow - last sequence */
const BYTE* ovref = NULL;
/* init */
#if defined(LZ4HC_HEAPMODE) && LZ4HC_HEAPMODE==1
if (opt == NULL) goto _return_label;
#endif
DEBUGLOG(5, "LZ4HC_compress_optimal(dst=%p, dstCapa=%u)", dst, (unsigned)dstCapacity);
*srcSizePtr = 0;
if (limit == fillOutput) oend -= LASTLITERALS; /* Hack for support LZ4 format restriction */
if (sufficient_len >= LZ4_OPT_NUM) sufficient_len = LZ4_OPT_NUM-1;
/* Main Loop */
while (ip <= mflimit) {
int const llen = (int)(ip - anchor);
int best_mlen, best_off;
int cur, last_match_pos = 0;
LZ4HC_match_t const firstMatch = LZ4HC_FindLongerMatch(ctx, ip, matchlimit, MINMATCH-1, nbSearches, dict, favorDecSpeed);
if (firstMatch.len==0) { ip++; continue; }
if ((size_t)firstMatch.len > sufficient_len) {
/* good enough solution : immediate encoding */
int const firstML = firstMatch.len;
const BYTE* const matchPos = ip - firstMatch.off;
opSaved = op;
if ( LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), firstML, matchPos, limit, oend) ) { /* updates ip, op and anchor */
ovml = firstML;
ovref = matchPos;
goto _dest_overflow;
}
continue;
}
/* set prices for first positions (literals) */
{ int rPos;
for (rPos = 0 ; rPos < MINMATCH ; rPos++) {
int const cost = LZ4HC_literalsPrice(llen + rPos);
opt[rPos].mlen = 1;
opt[rPos].off = 0;
opt[rPos].litlen = llen + rPos;
opt[rPos].price = cost;
DEBUGLOG(7, "rPos:%3i => price:%3i (litlen=%i) -- initial setup",
rPos, cost, opt[rPos].litlen);
} }
/* set prices using initial match */
{ int mlen = MINMATCH;
int const matchML = firstMatch.len; /* necessarily < sufficient_len < LZ4_OPT_NUM */
int const offset = firstMatch.off;
assert(matchML < LZ4_OPT_NUM);
for ( ; mlen <= matchML ; mlen++) {
int const cost = LZ4HC_sequencePrice(llen, mlen);
opt[mlen].mlen = mlen;
opt[mlen].off = offset;
opt[mlen].litlen = llen;
opt[mlen].price = cost;
DEBUGLOG(7, "rPos:%3i => price:%3i (matchlen=%i) -- initial setup",
mlen, cost, mlen);
} }
last_match_pos = firstMatch.len;
{ int addLit;
for (addLit = 1; addLit <= TRAILING_LITERALS; addLit ++) {
opt[last_match_pos+addLit].mlen = 1; /* literal */
opt[last_match_pos+addLit].off = 0;
opt[last_match_pos+addLit].litlen = addLit;
opt[last_match_pos+addLit].price = opt[last_match_pos].price + LZ4HC_literalsPrice(addLit);
DEBUGLOG(7, "rPos:%3i => price:%3i (litlen=%i) -- initial setup",
last_match_pos+addLit, opt[last_match_pos+addLit].price, addLit);
} }
/* check further positions */
for (cur = 1; cur < last_match_pos; cur++) {
const BYTE* const curPtr = ip + cur;
LZ4HC_match_t newMatch;
if (curPtr > mflimit) break;
DEBUGLOG(7, "rPos:%u[%u] vs [%u]%u",
cur, opt[cur].price, opt[cur+1].price, cur+1);
if (fullUpdate) {
/* not useful to search here if next position has same (or lower) cost */
if ( (opt[cur+1].price <= opt[cur].price)
/* in some cases, next position has same cost, but cost rises sharply after, so a small match would still be beneficial */
&& (opt[cur+MINMATCH].price < opt[cur].price + 3/*min seq price*/) )
continue;
} else {
/* not useful to search here if next position has same (or lower) cost */
if (opt[cur+1].price <= opt[cur].price) continue;
}
DEBUGLOG(7, "search at rPos:%u", cur);
if (fullUpdate)
newMatch = LZ4HC_FindLongerMatch(ctx, curPtr, matchlimit, MINMATCH-1, nbSearches, dict, favorDecSpeed);
else
/* only test matches of minimum length; slightly faster, but misses a few bytes */
newMatch = LZ4HC_FindLongerMatch(ctx, curPtr, matchlimit, last_match_pos - cur, nbSearches, dict, favorDecSpeed);
if (!newMatch.len) continue;
if ( ((size_t)newMatch.len > sufficient_len)
|| (newMatch.len + cur >= LZ4_OPT_NUM) ) {
/* immediate encoding */
best_mlen = newMatch.len;
best_off = newMatch.off;
last_match_pos = cur + 1;
goto encode;
}
/* before match : set price with literals at beginning */
{ int const baseLitlen = opt[cur].litlen;
int litlen;
for (litlen = 1; litlen < MINMATCH; litlen++) {
int const price = opt[cur].price - LZ4HC_literalsPrice(baseLitlen) + LZ4HC_literalsPrice(baseLitlen+litlen);
int const pos = cur + litlen;
if (price < opt[pos].price) {
opt[pos].mlen = 1; /* literal */
opt[pos].off = 0;
opt[pos].litlen = baseLitlen+litlen;
opt[pos].price = price;
DEBUGLOG(7, "rPos:%3i => price:%3i (litlen=%i)",
pos, price, opt[pos].litlen);
} } }
/* set prices using match at position = cur */
{ int const matchML = newMatch.len;
int ml = MINMATCH;
assert(cur + newMatch.len < LZ4_OPT_NUM);
for ( ; ml <= matchML ; ml++) {
int const pos = cur + ml;
int const offset = newMatch.off;
int price;
int ll;
DEBUGLOG(7, "testing price rPos %i (last_match_pos=%i)",
pos, last_match_pos);
if (opt[cur].mlen == 1) {
ll = opt[cur].litlen;
price = ((cur > ll) ? opt[cur - ll].price : 0)
+ LZ4HC_sequencePrice(ll, ml);
} else {
ll = 0;
price = opt[cur].price + LZ4HC_sequencePrice(0, ml);
}
assert((U32)favorDecSpeed <= 1);
if (pos > last_match_pos+TRAILING_LITERALS
|| price <= opt[pos].price - (int)favorDecSpeed) {
DEBUGLOG(7, "rPos:%3i => price:%3i (matchlen=%i)",
pos, price, ml);
assert(pos < LZ4_OPT_NUM);
if ( (ml == matchML) /* last pos of last match */
&& (last_match_pos < pos) )
last_match_pos = pos;
opt[pos].mlen = ml;
opt[pos].off = offset;
opt[pos].litlen = ll;
opt[pos].price = price;
} } }
/* complete following positions with literals */
{ int addLit;
for (addLit = 1; addLit <= TRAILING_LITERALS; addLit ++) {
opt[last_match_pos+addLit].mlen = 1; /* literal */
opt[last_match_pos+addLit].off = 0;
opt[last_match_pos+addLit].litlen = addLit;
opt[last_match_pos+addLit].price = opt[last_match_pos].price + LZ4HC_literalsPrice(addLit);
DEBUGLOG(7, "rPos:%3i => price:%3i (litlen=%i)", last_match_pos+addLit, opt[last_match_pos+addLit].price, addLit);
} }
} /* for (cur = 1; cur <= last_match_pos; cur++) */
assert(last_match_pos < LZ4_OPT_NUM + TRAILING_LITERALS);
best_mlen = opt[last_match_pos].mlen;
best_off = opt[last_match_pos].off;
cur = last_match_pos - best_mlen;
encode: /* cur, last_match_pos, best_mlen, best_off must be set */
assert(cur < LZ4_OPT_NUM);
assert(last_match_pos >= 1); /* == 1 when only one candidate */
DEBUGLOG(6, "reverse traversal, looking for shortest path (last_match_pos=%i)", last_match_pos);
{ int candidate_pos = cur;
int selected_matchLength = best_mlen;
int selected_offset = best_off;
while (1) { /* from end to beginning */
int const next_matchLength = opt[candidate_pos].mlen; /* can be 1, means literal */
int const next_offset = opt[candidate_pos].off;
DEBUGLOG(7, "pos %i: sequence length %i", candidate_pos, selected_matchLength);
opt[candidate_pos].mlen = selected_matchLength;
opt[candidate_pos].off = selected_offset;
selected_matchLength = next_matchLength;
selected_offset = next_offset;
if (next_matchLength > candidate_pos) break; /* last match elected, first match to encode */
assert(next_matchLength > 0); /* can be 1, means literal */
candidate_pos -= next_matchLength;
} }
/* encode all recorded sequences in order */
{ int rPos = 0; /* relative position (to ip) */
while (rPos < last_match_pos) {
int const ml = opt[rPos].mlen;
int const offset = opt[rPos].off;
if (ml == 1) { ip++; rPos++; continue; } /* literal; note: can end up with several literals, in which case, skip them */
rPos += ml;
assert(ml >= MINMATCH);
assert((offset >= 1) && (offset <= LZ4_DISTANCE_MAX));
opSaved = op;
if ( LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ml, ip - offset, limit, oend) ) { /* updates ip, op and anchor */
ovml = ml;
ovref = ip - offset;
goto _dest_overflow;
} } }
} /* while (ip <= mflimit) */
_last_literals:
/* Encode Last Literals */
{ size_t lastRunSize = (size_t)(iend - anchor); /* literals */
size_t llAdd = (lastRunSize + 255 - RUN_MASK) / 255;
size_t const totalSize = 1 + llAdd + lastRunSize;
if (limit == fillOutput) oend += LASTLITERALS; /* restore correct value */
if (limit && (op + totalSize > oend)) {
if (limit == limitedOutput) { /* Check output limit */
retval = 0;
goto _return_label;
}
/* adapt lastRunSize to fill 'dst' */
lastRunSize = (size_t)(oend - op) - 1 /*token*/;
llAdd = (lastRunSize + 256 - RUN_MASK) / 256;
lastRunSize -= llAdd;
}
DEBUGLOG(6, "Final literal run : %i literals", (int)lastRunSize);
ip = anchor + lastRunSize; /* can be != iend if limit==fillOutput */
if (lastRunSize >= RUN_MASK) {
size_t accumulator = lastRunSize - RUN_MASK;
*op++ = (RUN_MASK << ML_BITS);
for(; accumulator >= 255 ; accumulator -= 255) *op++ = 255;
*op++ = (BYTE) accumulator;
} else {
*op++ = (BYTE)(lastRunSize << ML_BITS);
}
LZ4_memcpy(op, anchor, lastRunSize);
op += lastRunSize;
}
/* End */
*srcSizePtr = (int) (((const char*)ip) - source);
retval = (int) ((char*)op-dst);
goto _return_label;
_dest_overflow:
if (limit == fillOutput) {
/* Assumption : ip, anchor, ovml and ovref must be set correctly */
size_t const ll = (size_t)(ip - anchor);
size_t const ll_addbytes = (ll + 240) / 255;
size_t const ll_totalCost = 1 + ll_addbytes + ll;
BYTE* const maxLitPos = oend - 3; /* 2 for offset, 1 for token */
DEBUGLOG(6, "Last sequence overflowing (only %i bytes remaining)", (int)(oend-1-opSaved));
op = opSaved; /* restore correct out pointer */
if (op + ll_totalCost <= maxLitPos) {
/* ll validated; now adjust match length */
size_t const bytesLeftForMl = (size_t)(maxLitPos - (op+ll_totalCost));
size_t const maxMlSize = MINMATCH + (ML_MASK-1) + (bytesLeftForMl * 255);
assert(maxMlSize < INT_MAX); assert(ovml >= 0);
if ((size_t)ovml > maxMlSize) ovml = (int)maxMlSize;
if ((oend + LASTLITERALS) - (op + ll_totalCost + 2) - 1 + ovml >= MFLIMIT) {
DEBUGLOG(6, "Space to end : %i + ml (%i)", (int)((oend + LASTLITERALS) - (op + ll_totalCost + 2) - 1), ovml);
DEBUGLOG(6, "Before : ip = %p, anchor = %p", ip, anchor);
LZ4HC_encodeSequence(UPDATABLE(ip, op, anchor), ovml, ovref, notLimited, oend);
DEBUGLOG(6, "After : ip = %p, anchor = %p", ip, anchor);
} }
goto _last_literals;
}
_return_label:
#if defined(LZ4HC_HEAPMODE) && LZ4HC_HEAPMODE==1
FREEMEM(opt);
#endif
return retval;
}
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyVersion.hpp | #ifndef __TRACYVERSION_HPP__
#define __TRACYVERSION_HPP__
namespace tracy
{
namespace Version
{
enum { Major = 0 };
enum { Minor = 9 };
enum { Patch = 0 };
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyMutex.hpp | #ifndef __TRACYMUTEX_HPP__
#define __TRACYMUTEX_HPP__
#if defined _MSC_VER
# include <shared_mutex>
namespace tracy
{
using TracyMutex = std::shared_mutex;
}
#else
#include <mutex>
namespace tracy
{
using TracyMutex = std::mutex;
}
#endif
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyYield.hpp | #ifndef __TRACYYIELD_HPP__
#define __TRACYYIELD_HPP__
#if defined __SSE2__ || defined _M_AMD64 || (defined _M_IX86_FP && _M_IX86_FP == 2)
# include <emmintrin.h>
#else
# include <thread>
#endif
#include "TracyForceInline.hpp"
namespace tracy
{
static tracy_force_inline void YieldThread()
{
#if defined __SSE2__ || defined _M_AMD64 || (defined _M_IX86_FP && _M_IX86_FP == 2)
_mm_pause();
#elif defined __aarch64__
asm volatile( "isb" : : );
#else
std::this_thread::yield();
#endif
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/tracy_lz4hc.hpp | /*
LZ4 HC - High Compression Mode of LZ4
Header File
Copyright (C) 2011-2020, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- LZ4 source repository : https://github.com/lz4/lz4
- LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
*/
#ifndef TRACY_LZ4_HC_H_19834876238432
#define TRACY_LZ4_HC_H_19834876238432
/* --- Dependency --- */
/* note : lz4hc requires lz4.h/lz4.c for compilation */
#include "tracy_lz4.hpp" /* stddef, LZ4LIB_API, LZ4_DEPRECATED */
/* --- Useful constants --- */
#define LZ4HC_CLEVEL_MIN 3
#define LZ4HC_CLEVEL_DEFAULT 9
#define LZ4HC_CLEVEL_OPT_MIN 10
#define LZ4HC_CLEVEL_MAX 12
namespace tracy
{
/*-************************************
* Block Compression
**************************************/
/*! LZ4_compress_HC() :
* Compress data from `src` into `dst`, using the powerful but slower "HC" algorithm.
* `dst` must be already allocated.
* Compression is guaranteed to succeed if `dstCapacity >= LZ4_compressBound(srcSize)` (see "lz4.h")
* Max supported `srcSize` value is LZ4_MAX_INPUT_SIZE (see "lz4.h")
* `compressionLevel` : any value between 1 and LZ4HC_CLEVEL_MAX will work.
* Values > LZ4HC_CLEVEL_MAX behave the same as LZ4HC_CLEVEL_MAX.
* @return : the number of bytes written into 'dst'
* or 0 if compression fails.
*/
LZ4LIB_API int LZ4_compress_HC (const char* src, char* dst, int srcSize, int dstCapacity, int compressionLevel);
/* Note :
* Decompression functions are provided within "lz4.h" (BSD license)
*/
/*! LZ4_compress_HC_extStateHC() :
* Same as LZ4_compress_HC(), but using an externally allocated memory segment for `state`.
* `state` size is provided by LZ4_sizeofStateHC().
* Memory segment must be aligned on 8-bytes boundaries (which a normal malloc() should do properly).
*/
LZ4LIB_API int LZ4_sizeofStateHC(void);
LZ4LIB_API int LZ4_compress_HC_extStateHC(void* stateHC, const char* src, char* dst, int srcSize, int maxDstSize, int compressionLevel);
/*! LZ4_compress_HC_destSize() : v1.9.0+
* Will compress as much data as possible from `src`
* to fit into `targetDstSize` budget.
* Result is provided in 2 parts :
* @return : the number of bytes written into 'dst' (necessarily <= targetDstSize)
* or 0 if compression fails.
* `srcSizePtr` : on success, *srcSizePtr is updated to indicate how much bytes were read from `src`
*/
LZ4LIB_API int LZ4_compress_HC_destSize(void* stateHC,
const char* src, char* dst,
int* srcSizePtr, int targetDstSize,
int compressionLevel);
/*-************************************
* Streaming Compression
* Bufferless synchronous API
**************************************/
typedef union LZ4_streamHC_u LZ4_streamHC_t; /* incomplete type (defined later) */
/*! LZ4_createStreamHC() and LZ4_freeStreamHC() :
* These functions create and release memory for LZ4 HC streaming state.
* Newly created states are automatically initialized.
* A same state can be used multiple times consecutively,
* starting with LZ4_resetStreamHC_fast() to start a new stream of blocks.
*/
LZ4LIB_API LZ4_streamHC_t* LZ4_createStreamHC(void);
LZ4LIB_API int LZ4_freeStreamHC (LZ4_streamHC_t* streamHCPtr);
/*
These functions compress data in successive blocks of any size,
using previous blocks as dictionary, to improve compression ratio.
One key assumption is that previous blocks (up to 64 KB) remain read-accessible while compressing next blocks.
There is an exception for ring buffers, which can be smaller than 64 KB.
Ring-buffer scenario is automatically detected and handled within LZ4_compress_HC_continue().
Before starting compression, state must be allocated and properly initialized.
LZ4_createStreamHC() does both, though compression level is set to LZ4HC_CLEVEL_DEFAULT.
Selecting the compression level can be done with LZ4_resetStreamHC_fast() (starts a new stream)
or LZ4_setCompressionLevel() (anytime, between blocks in the same stream) (experimental).
LZ4_resetStreamHC_fast() only works on states which have been properly initialized at least once,
which is automatically the case when state is created using LZ4_createStreamHC().
After reset, a first "fictional block" can be designated as initial dictionary,
using LZ4_loadDictHC() (Optional).
Invoke LZ4_compress_HC_continue() to compress each successive block.
The number of blocks is unlimited.
Previous input blocks, including initial dictionary when present,
must remain accessible and unmodified during compression.
It's allowed to update compression level anytime between blocks,
using LZ4_setCompressionLevel() (experimental).
'dst' buffer should be sized to handle worst case scenarios
(see LZ4_compressBound(), it ensures compression success).
In case of failure, the API does not guarantee recovery,
so the state _must_ be reset.
To ensure compression success
whenever `dst` buffer size cannot be made >= LZ4_compressBound(),
consider using LZ4_compress_HC_continue_destSize().
Whenever previous input blocks can't be preserved unmodified in-place during compression of next blocks,
it's possible to copy the last blocks into a more stable memory space, using LZ4_saveDictHC().
Return value of LZ4_saveDictHC() is the size of dictionary effectively saved into 'safeBuffer' (<= 64 KB)
After completing a streaming compression,
it's possible to start a new stream of blocks, using the same LZ4_streamHC_t state,
just by resetting it, using LZ4_resetStreamHC_fast().
*/
LZ4LIB_API void LZ4_resetStreamHC_fast(LZ4_streamHC_t* streamHCPtr, int compressionLevel); /* v1.9.0+ */
LZ4LIB_API int LZ4_loadDictHC (LZ4_streamHC_t* streamHCPtr, const char* dictionary, int dictSize);
LZ4LIB_API int LZ4_compress_HC_continue (LZ4_streamHC_t* streamHCPtr,
const char* src, char* dst,
int srcSize, int maxDstSize);
/*! LZ4_compress_HC_continue_destSize() : v1.9.0+
* Similar to LZ4_compress_HC_continue(),
* but will read as much data as possible from `src`
* to fit into `targetDstSize` budget.
* Result is provided into 2 parts :
* @return : the number of bytes written into 'dst' (necessarily <= targetDstSize)
* or 0 if compression fails.
* `srcSizePtr` : on success, *srcSizePtr will be updated to indicate how much bytes were read from `src`.
* Note that this function may not consume the entire input.
*/
LZ4LIB_API int LZ4_compress_HC_continue_destSize(LZ4_streamHC_t* LZ4_streamHCPtr,
const char* src, char* dst,
int* srcSizePtr, int targetDstSize);
LZ4LIB_API int LZ4_saveDictHC (LZ4_streamHC_t* streamHCPtr, char* safeBuffer, int maxDictSize);
/*^**********************************************
* !!!!!! STATIC LINKING ONLY !!!!!!
***********************************************/
/*-******************************************************************
* PRIVATE DEFINITIONS :
* Do not use these definitions directly.
* They are merely exposed to allow static allocation of `LZ4_streamHC_t`.
* Declare an `LZ4_streamHC_t` directly, rather than any type below.
* Even then, only do so in the context of static linking, as definitions may change between versions.
********************************************************************/
#define LZ4HC_DICTIONARY_LOGSIZE 16
#define LZ4HC_MAXD (1<<LZ4HC_DICTIONARY_LOGSIZE)
#define LZ4HC_MAXD_MASK (LZ4HC_MAXD - 1)
#define LZ4HC_HASH_LOG 15
#define LZ4HC_HASHTABLESIZE (1 << LZ4HC_HASH_LOG)
#define LZ4HC_HASH_MASK (LZ4HC_HASHTABLESIZE - 1)
/* Never ever use these definitions directly !
* Declare or allocate an LZ4_streamHC_t instead.
**/
typedef struct LZ4HC_CCtx_internal LZ4HC_CCtx_internal;
struct LZ4HC_CCtx_internal
{
LZ4_u32 hashTable[LZ4HC_HASHTABLESIZE];
LZ4_u16 chainTable[LZ4HC_MAXD];
const LZ4_byte* end; /* next block here to continue on current prefix */
const LZ4_byte* prefixStart; /* Indexes relative to this position */
const LZ4_byte* dictStart; /* alternate reference for extDict */
LZ4_u32 dictLimit; /* below that point, need extDict */
LZ4_u32 lowLimit; /* below that point, no more dict */
LZ4_u32 nextToUpdate; /* index from which to continue dictionary update */
short compressionLevel;
LZ4_i8 favorDecSpeed; /* favor decompression speed if this flag set,
otherwise, favor compression ratio */
LZ4_i8 dirty; /* stream has to be fully reset if this flag is set */
const LZ4HC_CCtx_internal* dictCtx;
};
#define LZ4_STREAMHC_MINSIZE 262200 /* static size, for inter-version compatibility */
union LZ4_streamHC_u {
char minStateSize[LZ4_STREAMHC_MINSIZE];
LZ4HC_CCtx_internal internal_donotuse;
}; /* previously typedef'd to LZ4_streamHC_t */
/* LZ4_streamHC_t :
* This structure allows static allocation of LZ4 HC streaming state.
* This can be used to allocate statically on stack, or as part of a larger structure.
*
* Such state **must** be initialized using LZ4_initStreamHC() before first use.
*
* Note that invoking LZ4_initStreamHC() is not required when
* the state was created using LZ4_createStreamHC() (which is recommended).
* Using the normal builder, a newly created state is automatically initialized.
*
* Static allocation shall only be used in combination with static linking.
*/
/* LZ4_initStreamHC() : v1.9.0+
* Required before first use of a statically allocated LZ4_streamHC_t.
* Before v1.9.0 : use LZ4_resetStreamHC() instead
*/
LZ4LIB_API LZ4_streamHC_t* LZ4_initStreamHC(void* buffer, size_t size);
/*-************************************
* Deprecated Functions
**************************************/
/* see lz4.h LZ4_DISABLE_DEPRECATE_WARNINGS to turn off deprecation warnings */
/* deprecated compression functions */
LZ4_DEPRECATED("use LZ4_compress_HC() instead") LZ4LIB_API int LZ4_compressHC (const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_HC() instead") LZ4LIB_API int LZ4_compressHC_limitedOutput (const char* source, char* dest, int inputSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_HC() instead") LZ4LIB_API int LZ4_compressHC2 (const char* source, char* dest, int inputSize, int compressionLevel);
LZ4_DEPRECATED("use LZ4_compress_HC() instead") LZ4LIB_API int LZ4_compressHC2_limitedOutput(const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel);
LZ4_DEPRECATED("use LZ4_compress_HC_extStateHC() instead") LZ4LIB_API int LZ4_compressHC_withStateHC (void* state, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_HC_extStateHC() instead") LZ4LIB_API int LZ4_compressHC_limitedOutput_withStateHC (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_HC_extStateHC() instead") LZ4LIB_API int LZ4_compressHC2_withStateHC (void* state, const char* source, char* dest, int inputSize, int compressionLevel);
LZ4_DEPRECATED("use LZ4_compress_HC_extStateHC() instead") LZ4LIB_API int LZ4_compressHC2_limitedOutput_withStateHC(void* state, const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel);
LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_compressHC_continue (LZ4_streamHC_t* LZ4_streamHCPtr, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_compressHC_limitedOutput_continue (LZ4_streamHC_t* LZ4_streamHCPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
/* Obsolete streaming functions; degraded functionality; do not use!
*
* In order to perform streaming compression, these functions depended on data
* that is no longer tracked in the state. They have been preserved as well as
* possible: using them will still produce a correct output. However, use of
* LZ4_slideInputBufferHC() will truncate the history of the stream, rather
* than preserve a window-sized chunk of history.
*/
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
LZ4_DEPRECATED("use LZ4_createStreamHC() instead") LZ4LIB_API void* LZ4_createHC (const char* inputBuffer);
LZ4_DEPRECATED("use LZ4_freeStreamHC() instead") LZ4LIB_API int LZ4_freeHC (void* LZ4HC_Data);
#endif
LZ4_DEPRECATED("use LZ4_saveDictHC() instead") LZ4LIB_API char* LZ4_slideInputBufferHC (void* LZ4HC_Data);
LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_compressHC2_continue (void* LZ4HC_Data, const char* source, char* dest, int inputSize, int compressionLevel);
LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_compressHC2_limitedOutput_continue (void* LZ4HC_Data, const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel);
LZ4_DEPRECATED("use LZ4_createStreamHC() instead") LZ4LIB_API int LZ4_sizeofStreamStateHC(void);
LZ4_DEPRECATED("use LZ4_initStreamHC() instead") LZ4LIB_API int LZ4_resetStreamStateHC(void* state, char* inputBuffer);
/* LZ4_resetStreamHC() is now replaced by LZ4_initStreamHC().
* The intention is to emphasize the difference with LZ4_resetStreamHC_fast(),
* which is now the recommended function to start a new stream of blocks,
* but cannot be used to initialize a memory segment containing arbitrary garbage data.
*
* It is recommended to switch to LZ4_initStreamHC().
* LZ4_resetStreamHC() will generate deprecation warnings in a future version.
*/
LZ4LIB_API void LZ4_resetStreamHC (LZ4_streamHC_t* streamHCPtr, int compressionLevel);
}
#endif /* LZ4_HC_H_19834876238432 */
/*-**************************************************
* !!!!! STATIC LINKING ONLY !!!!!
* Following definitions are considered experimental.
* They should not be linked from DLL,
* as there is no guarantee of API stability yet.
* Prototypes will be promoted to "stable" status
* after successful usage in real-life scenarios.
***************************************************/
#ifdef LZ4_HC_STATIC_LINKING_ONLY /* protection macro */
#ifndef TRACY_LZ4_HC_SLO_098092834
#define TRACY_LZ4_HC_SLO_098092834
#define LZ4_STATIC_LINKING_ONLY /* LZ4LIB_STATIC_API */
#include "tracy_lz4.hpp"
namespace tracy
{
/*! LZ4_setCompressionLevel() : v1.8.0+ (experimental)
* It's possible to change compression level
* between successive invocations of LZ4_compress_HC_continue*()
* for dynamic adaptation.
*/
LZ4LIB_STATIC_API void LZ4_setCompressionLevel(
LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel);
/*! LZ4_favorDecompressionSpeed() : v1.8.2+ (experimental)
* Opt. Parser will favor decompression speed over compression ratio.
* Only applicable to levels >= LZ4HC_CLEVEL_OPT_MIN.
*/
LZ4LIB_STATIC_API void LZ4_favorDecompressionSpeed(
LZ4_streamHC_t* LZ4_streamHCPtr, int favor);
/*! LZ4_resetStreamHC_fast() : v1.9.0+
* When an LZ4_streamHC_t is known to be in a internally coherent state,
* it can often be prepared for a new compression with almost no work, only
* sometimes falling back to the full, expensive reset that is always required
* when the stream is in an indeterminate state (i.e., the reset performed by
* LZ4_resetStreamHC()).
*
* LZ4_streamHCs are guaranteed to be in a valid state when:
* - returned from LZ4_createStreamHC()
* - reset by LZ4_resetStreamHC()
* - memset(stream, 0, sizeof(LZ4_streamHC_t))
* - the stream was in a valid state and was reset by LZ4_resetStreamHC_fast()
* - the stream was in a valid state and was then used in any compression call
* that returned success
* - the stream was in an indeterminate state and was used in a compression
* call that fully reset the state (LZ4_compress_HC_extStateHC()) and that
* returned success
*
* Note:
* A stream that was last used in a compression call that returned an error
* may be passed to this function. However, it will be fully reset, which will
* clear any existing history and settings from the context.
*/
LZ4LIB_STATIC_API void LZ4_resetStreamHC_fast(
LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel);
/*! LZ4_compress_HC_extStateHC_fastReset() :
* A variant of LZ4_compress_HC_extStateHC().
*
* Using this variant avoids an expensive initialization step. It is only safe
* to call if the state buffer is known to be correctly initialized already
* (see above comment on LZ4_resetStreamHC_fast() for a definition of
* "correctly initialized"). From a high level, the difference is that this
* function initializes the provided state with a call to
* LZ4_resetStreamHC_fast() while LZ4_compress_HC_extStateHC() starts with a
* call to LZ4_resetStreamHC().
*/
LZ4LIB_STATIC_API int LZ4_compress_HC_extStateHC_fastReset (
void* state,
const char* src, char* dst,
int srcSize, int dstCapacity,
int compressionLevel);
/*! LZ4_attach_HC_dictionary() :
* This is an experimental API that allows for the efficient use of a
* static dictionary many times.
*
* Rather than re-loading the dictionary buffer into a working context before
* each compression, or copying a pre-loaded dictionary's LZ4_streamHC_t into a
* working LZ4_streamHC_t, this function introduces a no-copy setup mechanism,
* in which the working stream references the dictionary stream in-place.
*
* Several assumptions are made about the state of the dictionary stream.
* Currently, only streams which have been prepared by LZ4_loadDictHC() should
* be expected to work.
*
* Alternatively, the provided dictionary stream pointer may be NULL, in which
* case any existing dictionary stream is unset.
*
* A dictionary should only be attached to a stream without any history (i.e.,
* a stream that has just been reset).
*
* The dictionary will remain attached to the working stream only for the
* current stream session. Calls to LZ4_resetStreamHC(_fast) will remove the
* dictionary context association from the working stream. The dictionary
* stream (and source buffer) must remain in-place / accessible / unchanged
* through the lifetime of the stream session.
*/
LZ4LIB_STATIC_API void LZ4_attach_HC_dictionary(
LZ4_streamHC_t *working_stream,
const LZ4_streamHC_t *dictionary_stream);
}
#endif /* LZ4_HC_SLO_098092834 */
#endif /* LZ4_HC_STATIC_LINKING_ONLY */
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracySocket.cpp | #include <assert.h>
#include <inttypes.h>
#include <new>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "TracyAlloc.hpp"
#include "TracySocket.hpp"
#include "TracySystem.hpp"
#ifdef _WIN32
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <winsock2.h>
# include <ws2tcpip.h>
# ifdef _MSC_VER
# pragma warning(disable:4244)
# pragma warning(disable:4267)
# endif
# define poll WSAPoll
#else
# include <arpa/inet.h>
# include <sys/socket.h>
# include <sys/param.h>
# include <errno.h>
# include <fcntl.h>
# include <netinet/in.h>
# include <netdb.h>
# include <unistd.h>
# include <poll.h>
#endif
#ifndef MSG_NOSIGNAL
# define MSG_NOSIGNAL 0
#endif
namespace tracy
{
#ifdef _WIN32
typedef SOCKET socket_t;
#else
typedef int socket_t;
#endif
#ifdef _WIN32
struct __wsinit
{
__wsinit()
{
WSADATA wsaData;
if( WSAStartup( MAKEWORD( 2, 2 ), &wsaData ) != 0 )
{
fprintf( stderr, "Cannot init winsock.\n" );
exit( 1 );
}
}
};
void InitWinSock()
{
static __wsinit init;
}
#endif
enum { BufSize = 128 * 1024 };
Socket::Socket()
: m_buf( (char*)tracy_malloc( BufSize ) )
, m_bufPtr( nullptr )
, m_sock( -1 )
, m_bufLeft( 0 )
, m_ptr( nullptr )
{
#ifdef _WIN32
InitWinSock();
#endif
}
Socket::Socket( int sock )
: m_buf( (char*)tracy_malloc( BufSize ) )
, m_bufPtr( nullptr )
, m_sock( sock )
, m_bufLeft( 0 )
, m_ptr( nullptr )
{
}
Socket::~Socket()
{
tracy_free( m_buf );
if( m_sock.load( std::memory_order_relaxed ) != -1 )
{
Close();
}
if( m_ptr )
{
freeaddrinfo( m_res );
#ifdef _WIN32
closesocket( m_connSock );
#else
close( m_connSock );
#endif
}
}
bool Socket::Connect( const char* addr, uint16_t port )
{
assert( !IsValid() );
if( m_ptr )
{
const auto c = connect( m_connSock, m_ptr->ai_addr, m_ptr->ai_addrlen );
if( c == -1 )
{
#if defined _WIN32
const auto err = WSAGetLastError();
if( err == WSAEALREADY || err == WSAEINPROGRESS ) return false;
if( err != WSAEISCONN )
{
freeaddrinfo( m_res );
closesocket( m_connSock );
m_ptr = nullptr;
return false;
}
#else
const auto err = errno;
if( err == EALREADY || err == EINPROGRESS ) return false;
if( err != EISCONN )
{
freeaddrinfo( m_res );
close( m_connSock );
m_ptr = nullptr;
return false;
}
#endif
}
#if defined _WIN32
u_long nonblocking = 0;
ioctlsocket( m_connSock, FIONBIO, &nonblocking );
#else
int flags = fcntl( m_connSock, F_GETFL, 0 );
fcntl( m_connSock, F_SETFL, flags & ~O_NONBLOCK );
#endif
m_sock.store( m_connSock, std::memory_order_relaxed );
freeaddrinfo( m_res );
m_ptr = nullptr;
return true;
}
struct addrinfo hints;
struct addrinfo *res, *ptr;
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
char portbuf[32];
sprintf( portbuf, "%" PRIu16, port );
if( getaddrinfo( addr, portbuf, &hints, &res ) != 0 ) return false;
int sock = 0;
for( ptr = res; ptr; ptr = ptr->ai_next )
{
if( ( sock = socket( ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol ) ) == -1 ) continue;
#if defined __APPLE__
int val = 1;
setsockopt( sock, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof( val ) );
#endif
#if defined _WIN32
u_long nonblocking = 1;
ioctlsocket( sock, FIONBIO, &nonblocking );
#else
int flags = fcntl( sock, F_GETFL, 0 );
fcntl( sock, F_SETFL, flags | O_NONBLOCK );
#endif
if( connect( sock, ptr->ai_addr, ptr->ai_addrlen ) == 0 )
{
break;
}
else
{
#if defined _WIN32
const auto err = WSAGetLastError();
if( err != WSAEWOULDBLOCK )
{
closesocket( sock );
continue;
}
#else
if( errno != EINPROGRESS )
{
close( sock );
continue;
}
#endif
}
m_res = res;
m_ptr = ptr;
m_connSock = sock;
return false;
}
freeaddrinfo( res );
if( !ptr ) return false;
#if defined _WIN32
u_long nonblocking = 0;
ioctlsocket( sock, FIONBIO, &nonblocking );
#else
int flags = fcntl( sock, F_GETFL, 0 );
fcntl( sock, F_SETFL, flags & ~O_NONBLOCK );
#endif
m_sock.store( sock, std::memory_order_relaxed );
return true;
}
bool Socket::ConnectBlocking( const char* addr, uint16_t port )
{
assert( !IsValid() );
assert( !m_ptr );
struct addrinfo hints;
struct addrinfo *res, *ptr;
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
char portbuf[32];
sprintf( portbuf, "%" PRIu16, port );
if( getaddrinfo( addr, portbuf, &hints, &res ) != 0 ) return false;
int sock = 0;
for( ptr = res; ptr; ptr = ptr->ai_next )
{
if( ( sock = socket( ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol ) ) == -1 ) continue;
#if defined __APPLE__
int val = 1;
setsockopt( sock, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof( val ) );
#endif
if( connect( sock, ptr->ai_addr, ptr->ai_addrlen ) == -1 )
{
#ifdef _WIN32
closesocket( sock );
#else
close( sock );
#endif
continue;
}
break;
}
freeaddrinfo( res );
if( !ptr ) return false;
m_sock.store( sock, std::memory_order_relaxed );
return true;
}
void Socket::Close()
{
const auto sock = m_sock.load( std::memory_order_relaxed );
assert( sock != -1 );
#ifdef _WIN32
closesocket( sock );
#else
close( sock );
#endif
m_sock.store( -1, std::memory_order_relaxed );
}
int Socket::Send( const void* _buf, int len )
{
const auto sock = m_sock.load( std::memory_order_relaxed );
auto buf = (const char*)_buf;
assert( sock != -1 );
auto start = buf;
while( len > 0 )
{
auto ret = send( sock, buf, len, MSG_NOSIGNAL );
if( ret == -1 ) return -1;
len -= ret;
buf += ret;
}
return int( buf - start );
}
int Socket::GetSendBufSize()
{
const auto sock = m_sock.load( std::memory_order_relaxed );
int bufSize;
#if defined _WIN32
int sz = sizeof( bufSize );
getsockopt( sock, SOL_SOCKET, SO_SNDBUF, (char*)&bufSize, &sz );
#else
socklen_t sz = sizeof( bufSize );
getsockopt( sock, SOL_SOCKET, SO_SNDBUF, &bufSize, &sz );
#endif
return bufSize;
}
int Socket::RecvBuffered( void* buf, int len, int timeout )
{
if( len <= m_bufLeft )
{
memcpy( buf, m_bufPtr, len );
m_bufPtr += len;
m_bufLeft -= len;
return len;
}
if( m_bufLeft > 0 )
{
memcpy( buf, m_bufPtr, m_bufLeft );
const auto ret = m_bufLeft;
m_bufLeft = 0;
return ret;
}
if( len >= BufSize ) return Recv( buf, len, timeout );
m_bufLeft = Recv( m_buf, BufSize, timeout );
if( m_bufLeft <= 0 ) return m_bufLeft;
const auto sz = len < m_bufLeft ? len : m_bufLeft;
memcpy( buf, m_buf, sz );
m_bufPtr = m_buf + sz;
m_bufLeft -= sz;
return sz;
}
int Socket::Recv( void* _buf, int len, int timeout )
{
const auto sock = m_sock.load( std::memory_order_relaxed );
auto buf = (char*)_buf;
struct pollfd fd;
fd.fd = (socket_t)sock;
fd.events = POLLIN;
if( poll( &fd, 1, timeout ) > 0 )
{
return recv( sock, buf, len, 0 );
}
else
{
return -1;
}
}
int Socket::ReadUpTo( void* _buf, int len, int timeout )
{
const auto sock = m_sock.load( std::memory_order_relaxed );
auto buf = (char*)_buf;
int rd = 0;
while( len > 0 )
{
const auto res = recv( sock, buf, len, 0 );
if( res == 0 ) break;
if( res == -1 ) return -1;
len -= res;
rd += res;
buf += res;
}
return rd;
}
bool Socket::Read( void* buf, int len, int timeout )
{
auto cbuf = (char*)buf;
while( len > 0 )
{
if( !ReadImpl( cbuf, len, timeout ) ) return false;
}
return true;
}
bool Socket::ReadImpl( char*& buf, int& len, int timeout )
{
const auto sz = RecvBuffered( buf, len, timeout );
switch( sz )
{
case 0:
return false;
case -1:
#ifdef _WIN32
{
auto err = WSAGetLastError();
if( err == WSAECONNABORTED || err == WSAECONNRESET ) return false;
}
#endif
break;
default:
len -= sz;
buf += sz;
break;
}
return true;
}
bool Socket::ReadRaw( void* _buf, int len, int timeout )
{
auto buf = (char*)_buf;
while( len > 0 )
{
const auto sz = Recv( buf, len, timeout );
if( sz <= 0 ) return false;
len -= sz;
buf += sz;
}
return true;
}
bool Socket::HasData()
{
const auto sock = m_sock.load( std::memory_order_relaxed );
if( m_bufLeft > 0 ) return true;
struct pollfd fd;
fd.fd = (socket_t)sock;
fd.events = POLLIN;
return poll( &fd, 1, 0 ) > 0;
}
bool Socket::IsValid() const
{
return m_sock.load( std::memory_order_relaxed ) >= 0;
}
ListenSocket::ListenSocket()
: m_sock( -1 )
{
#ifdef _WIN32
InitWinSock();
#endif
}
ListenSocket::~ListenSocket()
{
if( m_sock != -1 ) Close();
}
static int addrinfo_and_socket_for_family( uint16_t port, int ai_family, struct addrinfo** res )
{
struct addrinfo hints;
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = ai_family;
hints.ai_socktype = SOCK_STREAM;
#ifndef TRACY_ONLY_LOCALHOST
const char* onlyLocalhost = GetEnvVar( "TRACY_ONLY_LOCALHOST" );
if( !onlyLocalhost || onlyLocalhost[0] != '1' )
{
hints.ai_flags = AI_PASSIVE;
}
#endif
char portbuf[32];
sprintf( portbuf, "%" PRIu16, port );
if( getaddrinfo( nullptr, portbuf, &hints, res ) != 0 ) return -1;
int sock = socket( (*res)->ai_family, (*res)->ai_socktype, (*res)->ai_protocol );
if (sock == -1) freeaddrinfo( *res );
return sock;
}
bool ListenSocket::Listen( uint16_t port, int backlog )
{
assert( m_sock == -1 );
struct addrinfo* res = nullptr;
#if !defined TRACY_ONLY_IPV4 && !defined TRACY_ONLY_LOCALHOST
const char* onlyIPv4 = GetEnvVar( "TRACY_ONLY_IPV4" );
if( !onlyIPv4 || onlyIPv4[0] != '1' )
{
m_sock = addrinfo_and_socket_for_family( port, AF_INET6, &res );
}
#endif
if (m_sock == -1)
{
// IPV6 protocol may not be available/is disabled. Try to create a socket
// with the IPV4 protocol
m_sock = addrinfo_and_socket_for_family( port, AF_INET, &res );
if( m_sock == -1 ) return false;
}
#if defined _WIN32
unsigned long val = 0;
setsockopt( m_sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&val, sizeof( val ) );
#elif defined BSD
int val = 0;
setsockopt( m_sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&val, sizeof( val ) );
val = 1;
setsockopt( m_sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof( val ) );
#else
int val = 1;
setsockopt( m_sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof( val ) );
#endif
if( bind( m_sock, res->ai_addr, res->ai_addrlen ) == -1 ) { freeaddrinfo( res ); Close(); return false; }
if( listen( m_sock, backlog ) == -1 ) { freeaddrinfo( res ); Close(); return false; }
freeaddrinfo( res );
return true;
}
Socket* ListenSocket::Accept()
{
struct sockaddr_storage remote;
socklen_t sz = sizeof( remote );
struct pollfd fd;
fd.fd = (socket_t)m_sock;
fd.events = POLLIN;
if( poll( &fd, 1, 10 ) > 0 )
{
int sock = accept( m_sock, (sockaddr*)&remote, &sz);
if( sock == -1 ) return nullptr;
#if defined __APPLE__
int val = 1;
setsockopt( sock, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof( val ) );
#endif
auto ptr = (Socket*)tracy_malloc( sizeof( Socket ) );
new(ptr) Socket( sock );
return ptr;
}
else
{
return nullptr;
}
}
void ListenSocket::Close()
{
assert( m_sock != -1 );
#ifdef _WIN32
closesocket( m_sock );
#else
close( m_sock );
#endif
m_sock = -1;
}
UdpBroadcast::UdpBroadcast()
: m_sock( -1 )
{
#ifdef _WIN32
InitWinSock();
#endif
}
UdpBroadcast::~UdpBroadcast()
{
if( m_sock != -1 ) Close();
}
bool UdpBroadcast::Open( const char* addr, uint16_t port )
{
assert( m_sock == -1 );
struct addrinfo hints;
struct addrinfo *res, *ptr;
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
char portbuf[32];
sprintf( portbuf, "%" PRIu16, port );
if( getaddrinfo( addr, portbuf, &hints, &res ) != 0 ) return false;
int sock = 0;
for( ptr = res; ptr; ptr = ptr->ai_next )
{
if( ( sock = socket( ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol ) ) == -1 ) continue;
#if defined __APPLE__
int val = 1;
setsockopt( sock, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof( val ) );
#endif
#if defined _WIN32
unsigned long broadcast = 1;
if( setsockopt( sock, SOL_SOCKET, SO_BROADCAST, (const char*)&broadcast, sizeof( broadcast ) ) == -1 )
#else
int broadcast = 1;
if( setsockopt( sock, SOL_SOCKET, SO_BROADCAST, &broadcast, sizeof( broadcast ) ) == -1 )
#endif
{
#ifdef _WIN32
closesocket( sock );
#else
close( sock );
#endif
continue;
}
break;
}
freeaddrinfo( res );
if( !ptr ) return false;
m_sock = sock;
inet_pton( AF_INET, addr, &m_addr );
return true;
}
void UdpBroadcast::Close()
{
assert( m_sock != -1 );
#ifdef _WIN32
closesocket( m_sock );
#else
close( m_sock );
#endif
m_sock = -1;
}
int UdpBroadcast::Send( uint16_t port, const void* data, int len )
{
assert( m_sock != -1 );
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
addr.sin_addr.s_addr = m_addr;
return sendto( m_sock, (const char*)data, len, MSG_NOSIGNAL, (sockaddr*)&addr, sizeof( addr ) );
}
IpAddress::IpAddress()
: m_number( 0 )
{
*m_text = '\0';
}
IpAddress::~IpAddress()
{
}
void IpAddress::Set( const struct sockaddr& addr )
{
#if defined _WIN32 && ( !defined NTDDI_WIN10 || NTDDI_VERSION < NTDDI_WIN10 )
struct sockaddr_in tmp;
memcpy( &tmp, &addr, sizeof( tmp ) );
auto ai = &tmp;
#else
auto ai = (const struct sockaddr_in*)&addr;
#endif
inet_ntop( AF_INET, &ai->sin_addr, m_text, 17 );
m_number = ai->sin_addr.s_addr;
}
UdpListen::UdpListen()
: m_sock( -1 )
{
#ifdef _WIN32
InitWinSock();
#endif
}
UdpListen::~UdpListen()
{
if( m_sock != -1 ) Close();
}
bool UdpListen::Listen( uint16_t port )
{
assert( m_sock == -1 );
int sock;
if( ( sock = socket( AF_INET, SOCK_DGRAM, 0 ) ) == -1 ) return false;
#if defined __APPLE__
int val = 1;
setsockopt( sock, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof( val ) );
#endif
#if defined _WIN32
unsigned long reuse = 1;
setsockopt( m_sock, SOL_SOCKET, SO_REUSEADDR, (const char*)&reuse, sizeof( reuse ) );
#else
int reuse = 1;
setsockopt( m_sock, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof( reuse ) );
#endif
#if defined _WIN32
unsigned long broadcast = 1;
if( setsockopt( sock, SOL_SOCKET, SO_BROADCAST, (const char*)&broadcast, sizeof( broadcast ) ) == -1 )
#else
int broadcast = 1;
if( setsockopt( sock, SOL_SOCKET, SO_BROADCAST, &broadcast, sizeof( broadcast ) ) == -1 )
#endif
{
#ifdef _WIN32
closesocket( sock );
#else
close( sock );
#endif
return false;
}
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
addr.sin_addr.s_addr = INADDR_ANY;
if( bind( sock, (sockaddr*)&addr, sizeof( addr ) ) == -1 )
{
#ifdef _WIN32
closesocket( sock );
#else
close( sock );
#endif
return false;
}
m_sock = sock;
return true;
}
void UdpListen::Close()
{
assert( m_sock != -1 );
#ifdef _WIN32
closesocket( m_sock );
#else
close( m_sock );
#endif
m_sock = -1;
}
const char* UdpListen::Read( size_t& len, IpAddress& addr, int timeout )
{
static char buf[2048];
struct pollfd fd;
fd.fd = (socket_t)m_sock;
fd.events = POLLIN;
if( poll( &fd, 1, timeout ) <= 0 ) return nullptr;
sockaddr sa;
socklen_t salen = sizeof( struct sockaddr );
len = (size_t)recvfrom( m_sock, buf, 2048, 0, &sa, &salen );
addr.Set( sa );
return buf;
}
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyAlign.hpp | #ifndef __TRACYALIGN_HPP__
#define __TRACYALIGN_HPP__
#include <string.h>
#include "TracyForceInline.hpp"
namespace tracy
{
template<typename T>
tracy_force_inline T MemRead( const void* ptr )
{
T val;
memcpy( &val, ptr, sizeof( T ) );
return val;
}
template<typename T>
tracy_force_inline void MemWrite( void* ptr, T val )
{
memcpy( ptr, &val, sizeof( T ) );
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyApi.h | #ifndef __TRACYAPI_H__
#define __TRACYAPI_H__
#if defined _WIN32
# if defined TRACY_EXPORTS
# define TRACY_API __declspec(dllexport)
# elif defined TRACY_IMPORTS
# define TRACY_API __declspec(dllimport)
# else
# define TRACY_API
# endif
#else
# define TRACY_API __attribute__((visibility("default")))
#endif
#endif // __TRACYAPI_H__
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/tracy_lz4.cpp | /*
LZ4 - Fast LZ compression algorithm
Copyright (C) 2011-2020, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- LZ4 homepage : http://www.lz4.org
- LZ4 source repository : https://github.com/lz4/lz4
*/
/*-************************************
* Tuning parameters
**************************************/
/*
* LZ4_HEAPMODE :
* Select how default compression functions will allocate memory for their hash table,
* in memory stack (0:default, fastest), or in memory heap (1:requires malloc()).
*/
#ifndef LZ4_HEAPMODE
# define LZ4_HEAPMODE 0
#endif
/*
* LZ4_ACCELERATION_DEFAULT :
* Select "acceleration" for LZ4_compress_fast() when parameter value <= 0
*/
#define LZ4_ACCELERATION_DEFAULT 1
/*
* LZ4_ACCELERATION_MAX :
* Any "acceleration" value higher than this threshold
* get treated as LZ4_ACCELERATION_MAX instead (fix #876)
*/
#define LZ4_ACCELERATION_MAX 65537
/*-************************************
* CPU Feature Detection
**************************************/
/* LZ4_FORCE_MEMORY_ACCESS
* By default, access to unaligned memory is controlled by `memcpy()`, which is safe and portable.
* Unfortunately, on some target/compiler combinations, the generated assembly is sub-optimal.
* The below switch allow to select different access method for improved performance.
* Method 0 (default) : use `memcpy()`. Safe and portable.
* Method 1 : `__packed` statement. It depends on compiler extension (ie, not portable).
* This method is safe if your compiler supports it, and *generally* as fast or faster than `memcpy`.
* Method 2 : direct access. This method is portable but violate C standard.
* It can generate buggy code on targets which assembly generation depends on alignment.
* But in some circumstances, it's the only known way to get the most performance (ie GCC + ARMv6)
* See https://fastcompression.blogspot.fr/2015/08/accessing-unaligned-memory.html for details.
* Prefer these methods in priority order (0 > 1 > 2)
*/
#ifndef LZ4_FORCE_MEMORY_ACCESS /* can be defined externally */
# if defined(__GNUC__) && \
( defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) \
|| defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) )
# define LZ4_FORCE_MEMORY_ACCESS 2
# elif (defined(__INTEL_COMPILER) && !defined(_WIN32)) || defined(__GNUC__)
# define LZ4_FORCE_MEMORY_ACCESS 1
# endif
#endif
/*
* LZ4_FORCE_SW_BITCOUNT
* Define this parameter if your target system or compiler does not support hardware bit count
*/
#if defined(_MSC_VER) && defined(_WIN32_WCE) /* Visual Studio for WinCE doesn't support Hardware bit count */
# undef LZ4_FORCE_SW_BITCOUNT /* avoid double def */
# define LZ4_FORCE_SW_BITCOUNT
#endif
/*-************************************
* Dependency
**************************************/
/*
* LZ4_SRC_INCLUDED:
* Amalgamation flag, whether lz4.c is included
*/
#ifndef LZ4_SRC_INCLUDED
# define LZ4_SRC_INCLUDED 1
#endif
#ifndef LZ4_STATIC_LINKING_ONLY
#define LZ4_STATIC_LINKING_ONLY
#endif
#ifndef LZ4_DISABLE_DEPRECATE_WARNINGS
#define LZ4_DISABLE_DEPRECATE_WARNINGS /* due to LZ4_decompress_safe_withPrefix64k */
#endif
#define LZ4_STATIC_LINKING_ONLY /* LZ4_DISTANCE_MAX */
#include "tracy_lz4.hpp"
/* see also "memory routines" below */
/*-************************************
* Compiler Options
**************************************/
#if defined(_MSC_VER) && (_MSC_VER >= 1400) /* Visual Studio 2005+ */
# include <intrin.h> /* only present in VS2005+ */
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
# pragma warning(disable : 6237) /* disable: C6237: conditional expression is always 0 */
#endif /* _MSC_VER */
#ifndef LZ4_FORCE_INLINE
# ifdef _MSC_VER /* Visual Studio */
# define LZ4_FORCE_INLINE static __forceinline
# else
# if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
# ifdef __GNUC__
# define LZ4_FORCE_INLINE static inline __attribute__((always_inline))
# else
# define LZ4_FORCE_INLINE static inline
# endif
# else
# define LZ4_FORCE_INLINE static
# endif /* __STDC_VERSION__ */
# endif /* _MSC_VER */
#endif /* LZ4_FORCE_INLINE */
/* LZ4_FORCE_O2 and LZ4_FORCE_INLINE
* gcc on ppc64le generates an unrolled SIMDized loop for LZ4_wildCopy8,
* together with a simple 8-byte copy loop as a fall-back path.
* However, this optimization hurts the decompression speed by >30%,
* because the execution does not go to the optimized loop
* for typical compressible data, and all of the preamble checks
* before going to the fall-back path become useless overhead.
* This optimization happens only with the -O3 flag, and -O2 generates
* a simple 8-byte copy loop.
* With gcc on ppc64le, all of the LZ4_decompress_* and LZ4_wildCopy8
* functions are annotated with __attribute__((optimize("O2"))),
* and also LZ4_wildCopy8 is forcibly inlined, so that the O2 attribute
* of LZ4_wildCopy8 does not affect the compression speed.
*/
#if defined(__PPC64__) && defined(__LITTLE_ENDIAN__) && defined(__GNUC__) && !defined(__clang__)
# define LZ4_FORCE_O2 __attribute__((optimize("O2")))
# undef LZ4_FORCE_INLINE
# define LZ4_FORCE_INLINE static __inline __attribute__((optimize("O2"),always_inline))
#else
# define LZ4_FORCE_O2
#endif
#if (defined(__GNUC__) && (__GNUC__ >= 3)) || (defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 800)) || defined(__clang__)
# define expect(expr,value) (__builtin_expect ((expr),(value)) )
#else
# define expect(expr,value) (expr)
#endif
#ifndef likely
#define likely(expr) expect((expr) != 0, 1)
#endif
#ifndef unlikely
#define unlikely(expr) expect((expr) != 0, 0)
#endif
/* Should the alignment test prove unreliable, for some reason,
* it can be disabled by setting LZ4_ALIGN_TEST to 0 */
#ifndef LZ4_ALIGN_TEST /* can be externally provided */
# define LZ4_ALIGN_TEST 1
#endif
/*-************************************
* Memory routines
**************************************/
/*! LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION :
* Disable relatively high-level LZ4/HC functions that use dynamic memory
* allocation functions (malloc(), calloc(), free()).
*
* Note that this is a compile-time switch. And since it disables
* public/stable LZ4 v1 API functions, we don't recommend using this
* symbol to generate a library for distribution.
*
* The following public functions are removed when this symbol is defined.
* - lz4 : LZ4_createStream, LZ4_freeStream,
* LZ4_createStreamDecode, LZ4_freeStreamDecode, LZ4_create (deprecated)
* - lz4hc : LZ4_createStreamHC, LZ4_freeStreamHC,
* LZ4_createHC (deprecated), LZ4_freeHC (deprecated)
* - lz4frame, lz4file : All LZ4F_* functions
*/
#if defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
# define ALLOC(s) lz4_error_memory_allocation_is_disabled
# define ALLOC_AND_ZERO(s) lz4_error_memory_allocation_is_disabled
# define FREEMEM(p) lz4_error_memory_allocation_is_disabled
#elif defined(LZ4_USER_MEMORY_FUNCTIONS)
/* memory management functions can be customized by user project.
* Below functions must exist somewhere in the Project
* and be available at link time */
void* LZ4_malloc(size_t s);
void* LZ4_calloc(size_t n, size_t s);
void LZ4_free(void* p);
# define ALLOC(s) LZ4_malloc(s)
# define ALLOC_AND_ZERO(s) LZ4_calloc(1,s)
# define FREEMEM(p) LZ4_free(p)
#else
# include <stdlib.h> /* malloc, calloc, free */
# define ALLOC(s) malloc(s)
# define ALLOC_AND_ZERO(s) calloc(1,s)
# define FREEMEM(p) free(p)
#endif
#if ! LZ4_FREESTANDING
# include <string.h> /* memset, memcpy */
#endif
#if !defined(LZ4_memset)
# define LZ4_memset(p,v,s) memset((p),(v),(s))
#endif
#define MEM_INIT(p,v,s) LZ4_memset((p),(v),(s))
/*-************************************
* Common Constants
**************************************/
#define MINMATCH 4
#define WILDCOPYLENGTH 8
#define LASTLITERALS 5 /* see ../doc/lz4_Block_format.md#parsing-restrictions */
#define MFLIMIT 12 /* see ../doc/lz4_Block_format.md#parsing-restrictions */
#define MATCH_SAFEGUARD_DISTANCE ((2*WILDCOPYLENGTH) - MINMATCH) /* ensure it's possible to write 2 x wildcopyLength without overflowing output buffer */
#define FASTLOOP_SAFE_DISTANCE 64
static const int LZ4_minLength = (MFLIMIT+1);
#define KB *(1 <<10)
#define MB *(1 <<20)
#define GB *(1U<<30)
#define LZ4_DISTANCE_ABSOLUTE_MAX 65535
#if (LZ4_DISTANCE_MAX > LZ4_DISTANCE_ABSOLUTE_MAX) /* max supported by LZ4 format */
# error "LZ4_DISTANCE_MAX is too big : must be <= 65535"
#endif
#define ML_BITS 4
#define ML_MASK ((1U<<ML_BITS)-1)
#define RUN_BITS (8-ML_BITS)
#define RUN_MASK ((1U<<RUN_BITS)-1)
/*-************************************
* Error detection
**************************************/
#if defined(LZ4_DEBUG) && (LZ4_DEBUG>=1)
# include <assert.h>
#else
# ifndef assert
# define assert(condition) ((void)0)
# endif
#endif
#define LZ4_STATIC_ASSERT(c) { enum { LZ4_static_assert = 1/(int)(!!(c)) }; } /* use after variable declarations */
#if defined(LZ4_DEBUG) && (LZ4_DEBUG>=2)
# include <stdio.h>
static int g_debuglog_enable = 1;
# define DEBUGLOG(l, ...) { \
if ((g_debuglog_enable) && (l<=LZ4_DEBUG)) { \
fprintf(stderr, __FILE__ ": "); \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, " \n"); \
} }
#else
# define DEBUGLOG(l, ...) {} /* disabled */
#endif
static int LZ4_isAligned(const void* ptr, size_t alignment)
{
return ((size_t)ptr & (alignment -1)) == 0;
}
/*-************************************
* Types
**************************************/
#include <limits.h>
#if defined(__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
# include <stdint.h>
typedef uint8_t BYTE;
typedef uint16_t U16;
typedef uint32_t U32;
typedef int32_t S32;
typedef uint64_t U64;
typedef uintptr_t uptrval;
#else
# if UINT_MAX != 4294967295UL
# error "LZ4 code (when not C++ or C99) assumes that sizeof(int) == 4"
# endif
typedef unsigned char BYTE;
typedef unsigned short U16;
typedef unsigned int U32;
typedef signed int S32;
typedef unsigned long long U64;
typedef size_t uptrval; /* generally true, except OpenVMS-64 */
#endif
#if defined(__x86_64__)
typedef U64 reg_t; /* 64-bits in x32 mode */
#else
typedef size_t reg_t; /* 32-bits in x32 mode */
#endif
typedef enum {
notLimited = 0,
limitedOutput = 1,
fillOutput = 2
} limitedOutput_directive;
namespace tracy
{
/*-************************************
* Reading and writing into memory
**************************************/
/**
* LZ4 relies on memcpy with a constant size being inlined. In freestanding
* environments, the compiler can't assume the implementation of memcpy() is
* standard compliant, so it can't apply its specialized memcpy() inlining
* logic. When possible, use __builtin_memcpy() to tell the compiler to analyze
* memcpy() as if it were standard compliant, so it can inline it in freestanding
* environments. This is needed when decompressing the Linux Kernel, for example.
*/
#if !defined(LZ4_memcpy)
# if defined(__GNUC__) && (__GNUC__ >= 4)
# define LZ4_memcpy(dst, src, size) __builtin_memcpy(dst, src, size)
# else
# define LZ4_memcpy(dst, src, size) memcpy(dst, src, size)
# endif
#endif
#if !defined(LZ4_memmove)
# if defined(__GNUC__) && (__GNUC__ >= 4)
# define LZ4_memmove __builtin_memmove
# else
# define LZ4_memmove memmove
# endif
#endif
static unsigned LZ4_isLittleEndian(void)
{
const union { U32 u; BYTE c[4]; } one = { 1 }; /* don't use static : performance detrimental */
return one.c[0];
}
#if defined(LZ4_FORCE_MEMORY_ACCESS) && (LZ4_FORCE_MEMORY_ACCESS==2)
/* lie to the compiler about data alignment; use with caution */
static U16 LZ4_read16(const void* memPtr) { return *(const U16*) memPtr; }
static U32 LZ4_read32(const void* memPtr) { return *(const U32*) memPtr; }
static reg_t LZ4_read_ARCH(const void* memPtr) { return *(const reg_t*) memPtr; }
static void LZ4_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
static void LZ4_write32(void* memPtr, U32 value) { *(U32*)memPtr = value; }
#elif defined(LZ4_FORCE_MEMORY_ACCESS) && (LZ4_FORCE_MEMORY_ACCESS==1)
/* __pack instructions are safer, but compiler specific, hence potentially problematic for some compilers */
/* currently only defined for gcc and icc */
typedef union { U16 u16; U32 u32; reg_t uArch; } __attribute__((packed)) LZ4_unalign;
static U16 LZ4_read16(const void* ptr) { return ((const LZ4_unalign*)ptr)->u16; }
static U32 LZ4_read32(const void* ptr) { return ((const LZ4_unalign*)ptr)->u32; }
static reg_t LZ4_read_ARCH(const void* ptr) { return ((const LZ4_unalign*)ptr)->uArch; }
static void LZ4_write16(void* memPtr, U16 value) { ((LZ4_unalign*)memPtr)->u16 = value; }
static void LZ4_write32(void* memPtr, U32 value) { ((LZ4_unalign*)memPtr)->u32 = value; }
#else /* safe and portable access using memcpy() */
static U16 LZ4_read16(const void* memPtr)
{
U16 val; LZ4_memcpy(&val, memPtr, sizeof(val)); return val;
}
static U32 LZ4_read32(const void* memPtr)
{
U32 val; LZ4_memcpy(&val, memPtr, sizeof(val)); return val;
}
static reg_t LZ4_read_ARCH(const void* memPtr)
{
reg_t val; LZ4_memcpy(&val, memPtr, sizeof(val)); return val;
}
static void LZ4_write16(void* memPtr, U16 value)
{
LZ4_memcpy(memPtr, &value, sizeof(value));
}
static void LZ4_write32(void* memPtr, U32 value)
{
LZ4_memcpy(memPtr, &value, sizeof(value));
}
#endif /* LZ4_FORCE_MEMORY_ACCESS */
static U16 LZ4_readLE16(const void* memPtr)
{
if (LZ4_isLittleEndian()) {
return LZ4_read16(memPtr);
} else {
const BYTE* p = (const BYTE*)memPtr;
return (U16)((U16)p[0] + (p[1]<<8));
}
}
static void LZ4_writeLE16(void* memPtr, U16 value)
{
if (LZ4_isLittleEndian()) {
LZ4_write16(memPtr, value);
} else {
BYTE* p = (BYTE*)memPtr;
p[0] = (BYTE) value;
p[1] = (BYTE)(value>>8);
}
}
/* customized variant of memcpy, which can overwrite up to 8 bytes beyond dstEnd */
LZ4_FORCE_INLINE
void LZ4_wildCopy8(void* dstPtr, const void* srcPtr, void* dstEnd)
{
BYTE* d = (BYTE*)dstPtr;
const BYTE* s = (const BYTE*)srcPtr;
BYTE* const e = (BYTE*)dstEnd;
do { LZ4_memcpy(d,s,8); d+=8; s+=8; } while (d<e);
}
static const unsigned inc32table[8] = {0, 1, 2, 1, 0, 4, 4, 4};
static const int dec64table[8] = {0, 0, 0, -1, -4, 1, 2, 3};
#ifndef LZ4_FAST_DEC_LOOP
# if defined __i386__ || defined _M_IX86 || defined __x86_64__ || defined _M_X64
# define LZ4_FAST_DEC_LOOP 1
# elif defined(__aarch64__) && defined(__APPLE__)
# define LZ4_FAST_DEC_LOOP 1
# elif defined(__aarch64__) && !defined(__clang__)
/* On non-Apple aarch64, we disable this optimization for clang because
* on certain mobile chipsets, performance is reduced with clang. For
* more information refer to https://github.com/lz4/lz4/pull/707 */
# define LZ4_FAST_DEC_LOOP 1
# else
# define LZ4_FAST_DEC_LOOP 0
# endif
#endif
#if LZ4_FAST_DEC_LOOP
LZ4_FORCE_INLINE void
LZ4_memcpy_using_offset_base(BYTE* dstPtr, const BYTE* srcPtr, BYTE* dstEnd, const size_t offset)
{
assert(srcPtr + offset == dstPtr);
if (offset < 8) {
LZ4_write32(dstPtr, 0); /* silence an msan warning when offset==0 */
dstPtr[0] = srcPtr[0];
dstPtr[1] = srcPtr[1];
dstPtr[2] = srcPtr[2];
dstPtr[3] = srcPtr[3];
srcPtr += inc32table[offset];
LZ4_memcpy(dstPtr+4, srcPtr, 4);
srcPtr -= dec64table[offset];
dstPtr += 8;
} else {
LZ4_memcpy(dstPtr, srcPtr, 8);
dstPtr += 8;
srcPtr += 8;
}
LZ4_wildCopy8(dstPtr, srcPtr, dstEnd);
}
/* customized variant of memcpy, which can overwrite up to 32 bytes beyond dstEnd
* this version copies two times 16 bytes (instead of one time 32 bytes)
* because it must be compatible with offsets >= 16. */
LZ4_FORCE_INLINE void
LZ4_wildCopy32(void* dstPtr, const void* srcPtr, void* dstEnd)
{
BYTE* d = (BYTE*)dstPtr;
const BYTE* s = (const BYTE*)srcPtr;
BYTE* const e = (BYTE*)dstEnd;
do { LZ4_memcpy(d,s,16); LZ4_memcpy(d+16,s+16,16); d+=32; s+=32; } while (d<e);
}
/* LZ4_memcpy_using_offset() presumes :
* - dstEnd >= dstPtr + MINMATCH
* - there is at least 8 bytes available to write after dstEnd */
LZ4_FORCE_INLINE void
LZ4_memcpy_using_offset(BYTE* dstPtr, const BYTE* srcPtr, BYTE* dstEnd, const size_t offset)
{
BYTE v[8];
assert(dstEnd >= dstPtr + MINMATCH);
switch(offset) {
case 1:
MEM_INIT(v, *srcPtr, 8);
break;
case 2:
LZ4_memcpy(v, srcPtr, 2);
LZ4_memcpy(&v[2], srcPtr, 2);
#if defined(_MSC_VER) && (_MSC_VER <= 1933) /* MSVC 2022 ver 17.3 or earlier */
# pragma warning(push)
# pragma warning(disable : 6385) /* warning C6385: Reading invalid data from 'v'. */
#endif
LZ4_memcpy(&v[4], v, 4);
#if defined(_MSC_VER) && (_MSC_VER <= 1933) /* MSVC 2022 ver 17.3 or earlier */
# pragma warning(pop)
#endif
break;
case 4:
LZ4_memcpy(v, srcPtr, 4);
LZ4_memcpy(&v[4], srcPtr, 4);
break;
default:
LZ4_memcpy_using_offset_base(dstPtr, srcPtr, dstEnd, offset);
return;
}
LZ4_memcpy(dstPtr, v, 8);
dstPtr += 8;
while (dstPtr < dstEnd) {
LZ4_memcpy(dstPtr, v, 8);
dstPtr += 8;
}
}
#endif
/*-************************************
* Common functions
**************************************/
LZ4_FORCE_INLINE unsigned LZ4_NbCommonBytes (reg_t val)
{
assert(val != 0);
if (LZ4_isLittleEndian()) {
if (sizeof(val) == 8) {
# if defined(_MSC_VER) && (_MSC_VER >= 1800) && (defined(_M_AMD64) && !defined(_M_ARM64EC)) && !defined(LZ4_FORCE_SW_BITCOUNT)
/*-*************************************************************************************************
* ARM64EC is a Microsoft-designed ARM64 ABI compatible with AMD64 applications on ARM64 Windows 11.
* The ARM64EC ABI does not support AVX/AVX2/AVX512 instructions, nor their relevant intrinsics
* including _tzcnt_u64. Therefore, we need to neuter the _tzcnt_u64 code path for ARM64EC.
****************************************************************************************************/
# if defined(__clang__) && (__clang_major__ < 10)
/* Avoid undefined clang-cl intrinsics issue.
* See https://github.com/lz4/lz4/pull/1017 for details. */
return (unsigned)__builtin_ia32_tzcnt_u64(val) >> 3;
# else
/* x64 CPUS without BMI support interpret `TZCNT` as `REP BSF` */
return (unsigned)_tzcnt_u64(val) >> 3;
# endif
# elif defined(_MSC_VER) && defined(_WIN64) && !defined(LZ4_FORCE_SW_BITCOUNT)
unsigned long r = 0;
_BitScanForward64(&r, (U64)val);
return (unsigned)r >> 3;
# elif (defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 3) || \
((__GNUC__ == 3) && (__GNUC_MINOR__ >= 4))))) && \
!defined(LZ4_FORCE_SW_BITCOUNT)
return (unsigned)__builtin_ctzll((U64)val) >> 3;
# else
const U64 m = 0x0101010101010101ULL;
val ^= val - 1;
return (unsigned)(((U64)((val & (m - 1)) * m)) >> 56);
# endif
} else /* 32 bits */ {
# if defined(_MSC_VER) && (_MSC_VER >= 1400) && !defined(LZ4_FORCE_SW_BITCOUNT)
unsigned long r;
_BitScanForward(&r, (U32)val);
return (unsigned)r >> 3;
# elif (defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 3) || \
((__GNUC__ == 3) && (__GNUC_MINOR__ >= 4))))) && \
!defined(__TINYC__) && !defined(LZ4_FORCE_SW_BITCOUNT)
return (unsigned)__builtin_ctz((U32)val) >> 3;
# else
const U32 m = 0x01010101;
return (unsigned)((((val - 1) ^ val) & (m - 1)) * m) >> 24;
# endif
}
} else /* Big Endian CPU */ {
if (sizeof(val)==8) {
# if (defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 3) || \
((__GNUC__ == 3) && (__GNUC_MINOR__ >= 4))))) && \
!defined(__TINYC__) && !defined(LZ4_FORCE_SW_BITCOUNT)
return (unsigned)__builtin_clzll((U64)val) >> 3;
# else
#if 1
/* this method is probably faster,
* but adds a 128 bytes lookup table */
static const unsigned char ctz7_tab[128] = {
7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
};
U64 const mask = 0x0101010101010101ULL;
U64 const t = (((val >> 8) - mask) | val) & mask;
return ctz7_tab[(t * 0x0080402010080402ULL) >> 57];
#else
/* this method doesn't consume memory space like the previous one,
* but it contains several branches,
* that may end up slowing execution */
static const U32 by32 = sizeof(val)*4; /* 32 on 64 bits (goal), 16 on 32 bits.
Just to avoid some static analyzer complaining about shift by 32 on 32-bits target.
Note that this code path is never triggered in 32-bits mode. */
unsigned r;
if (!(val>>by32)) { r=4; } else { r=0; val>>=by32; }
if (!(val>>16)) { r+=2; val>>=8; } else { val>>=24; }
r += (!val);
return r;
#endif
# endif
} else /* 32 bits */ {
# if (defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 3) || \
((__GNUC__ == 3) && (__GNUC_MINOR__ >= 4))))) && \
!defined(LZ4_FORCE_SW_BITCOUNT)
return (unsigned)__builtin_clz((U32)val) >> 3;
# else
val >>= 8;
val = ((((val + 0x00FFFF00) | 0x00FFFFFF) + val) |
(val + 0x00FF0000)) >> 24;
return (unsigned)val ^ 3;
# endif
}
}
}
#define STEPSIZE sizeof(reg_t)
LZ4_FORCE_INLINE
unsigned LZ4_count(const BYTE* pIn, const BYTE* pMatch, const BYTE* pInLimit)
{
const BYTE* const pStart = pIn;
if (likely(pIn < pInLimit-(STEPSIZE-1))) {
reg_t const diff = LZ4_read_ARCH(pMatch) ^ LZ4_read_ARCH(pIn);
if (!diff) {
pIn+=STEPSIZE; pMatch+=STEPSIZE;
} else {
return LZ4_NbCommonBytes(diff);
} }
while (likely(pIn < pInLimit-(STEPSIZE-1))) {
reg_t const diff = LZ4_read_ARCH(pMatch) ^ LZ4_read_ARCH(pIn);
if (!diff) { pIn+=STEPSIZE; pMatch+=STEPSIZE; continue; }
pIn += LZ4_NbCommonBytes(diff);
return (unsigned)(pIn - pStart);
}
if ((STEPSIZE==8) && (pIn<(pInLimit-3)) && (LZ4_read32(pMatch) == LZ4_read32(pIn))) { pIn+=4; pMatch+=4; }
if ((pIn<(pInLimit-1)) && (LZ4_read16(pMatch) == LZ4_read16(pIn))) { pIn+=2; pMatch+=2; }
if ((pIn<pInLimit) && (*pMatch == *pIn)) pIn++;
return (unsigned)(pIn - pStart);
}
#ifndef LZ4_COMMONDEFS_ONLY
/*-************************************
* Local Constants
**************************************/
static const int LZ4_64Klimit = ((64 KB) + (MFLIMIT-1));
static const U32 LZ4_skipTrigger = 6; /* Increase this value ==> compression run slower on incompressible data */
/*-************************************
* Local Structures and types
**************************************/
typedef enum { clearedTable = 0, byPtr, byU32, byU16 } tableType_t;
/**
* This enum distinguishes several different modes of accessing previous
* content in the stream.
*
* - noDict : There is no preceding content.
* - withPrefix64k : Table entries up to ctx->dictSize before the current blob
* blob being compressed are valid and refer to the preceding
* content (of length ctx->dictSize), which is available
* contiguously preceding in memory the content currently
* being compressed.
* - usingExtDict : Like withPrefix64k, but the preceding content is somewhere
* else in memory, starting at ctx->dictionary with length
* ctx->dictSize.
* - usingDictCtx : Everything concerning the preceding content is
* in a separate context, pointed to by ctx->dictCtx.
* ctx->dictionary, ctx->dictSize, and table entries
* in the current context that refer to positions
* preceding the beginning of the current compression are
* ignored. Instead, ctx->dictCtx->dictionary and ctx->dictCtx
* ->dictSize describe the location and size of the preceding
* content, and matches are found by looking in the ctx
* ->dictCtx->hashTable.
*/
typedef enum { noDict = 0, withPrefix64k, usingExtDict, usingDictCtx } dict_directive;
typedef enum { noDictIssue = 0, dictSmall } dictIssue_directive;
/*-************************************
* Local Utils
**************************************/
int LZ4_versionNumber (void) { return LZ4_VERSION_NUMBER; }
const char* LZ4_versionString(void) { return LZ4_VERSION_STRING; }
int LZ4_compressBound(int isize) { return LZ4_COMPRESSBOUND(isize); }
int LZ4_sizeofState(void) { return sizeof(LZ4_stream_t); }
/*-****************************************
* Internal Definitions, used only in Tests
*******************************************/
int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_dict, const char* source, char* dest, int srcSize);
int LZ4_decompress_safe_forceExtDict(const char* source, char* dest,
int compressedSize, int maxOutputSize,
const void* dictStart, size_t dictSize);
int LZ4_decompress_safe_partial_forceExtDict(const char* source, char* dest,
int compressedSize, int targetOutputSize, int dstCapacity,
const void* dictStart, size_t dictSize);
/*-******************************
* Compression functions
********************************/
LZ4_FORCE_INLINE U32 LZ4_hash4(U32 sequence, tableType_t const tableType)
{
if (tableType == byU16)
return ((sequence * 2654435761U) >> ((MINMATCH*8)-(LZ4_HASHLOG+1)));
else
return ((sequence * 2654435761U) >> ((MINMATCH*8)-LZ4_HASHLOG));
}
LZ4_FORCE_INLINE U32 LZ4_hash5(U64 sequence, tableType_t const tableType)
{
const U32 hashLog = (tableType == byU16) ? LZ4_HASHLOG+1 : LZ4_HASHLOG;
if (LZ4_isLittleEndian()) {
const U64 prime5bytes = 889523592379ULL;
return (U32)(((sequence << 24) * prime5bytes) >> (64 - hashLog));
} else {
const U64 prime8bytes = 11400714785074694791ULL;
return (U32)(((sequence >> 24) * prime8bytes) >> (64 - hashLog));
}
}
LZ4_FORCE_INLINE U32 LZ4_hashPosition(const void* const p, tableType_t const tableType)
{
if ((sizeof(reg_t)==8) && (tableType != byU16)) return LZ4_hash5(LZ4_read_ARCH(p), tableType);
return LZ4_hash4(LZ4_read32(p), tableType);
}
LZ4_FORCE_INLINE void LZ4_clearHash(U32 h, void* tableBase, tableType_t const tableType)
{
switch (tableType)
{
default: /* fallthrough */
case clearedTable: { /* illegal! */ assert(0); return; }
case byPtr: { const BYTE** hashTable = (const BYTE**)tableBase; hashTable[h] = NULL; return; }
case byU32: { U32* hashTable = (U32*) tableBase; hashTable[h] = 0; return; }
case byU16: { U16* hashTable = (U16*) tableBase; hashTable[h] = 0; return; }
}
}
LZ4_FORCE_INLINE void LZ4_putIndexOnHash(U32 idx, U32 h, void* tableBase, tableType_t const tableType)
{
switch (tableType)
{
default: /* fallthrough */
case clearedTable: /* fallthrough */
case byPtr: { /* illegal! */ assert(0); return; }
case byU32: { U32* hashTable = (U32*) tableBase; hashTable[h] = idx; return; }
case byU16: { U16* hashTable = (U16*) tableBase; assert(idx < 65536); hashTable[h] = (U16)idx; return; }
}
}
LZ4_FORCE_INLINE void LZ4_putPositionOnHash(const BYTE* p, U32 h,
void* tableBase, tableType_t const tableType,
const BYTE* srcBase)
{
switch (tableType)
{
case clearedTable: { /* illegal! */ assert(0); return; }
case byPtr: { const BYTE** hashTable = (const BYTE**)tableBase; hashTable[h] = p; return; }
case byU32: { U32* hashTable = (U32*) tableBase; hashTable[h] = (U32)(p-srcBase); return; }
case byU16: { U16* hashTable = (U16*) tableBase; hashTable[h] = (U16)(p-srcBase); return; }
}
}
LZ4_FORCE_INLINE void LZ4_putPosition(const BYTE* p, void* tableBase, tableType_t tableType, const BYTE* srcBase)
{
U32 const h = LZ4_hashPosition(p, tableType);
LZ4_putPositionOnHash(p, h, tableBase, tableType, srcBase);
}
/* LZ4_getIndexOnHash() :
* Index of match position registered in hash table.
* hash position must be calculated by using base+index, or dictBase+index.
* Assumption 1 : only valid if tableType == byU32 or byU16.
* Assumption 2 : h is presumed valid (within limits of hash table)
*/
LZ4_FORCE_INLINE U32 LZ4_getIndexOnHash(U32 h, const void* tableBase, tableType_t tableType)
{
LZ4_STATIC_ASSERT(LZ4_MEMORY_USAGE > 2);
if (tableType == byU32) {
const U32* const hashTable = (const U32*) tableBase;
assert(h < (1U << (LZ4_MEMORY_USAGE-2)));
return hashTable[h];
}
if (tableType == byU16) {
const U16* const hashTable = (const U16*) tableBase;
assert(h < (1U << (LZ4_MEMORY_USAGE-1)));
return hashTable[h];
}
assert(0); return 0; /* forbidden case */
}
static const BYTE* LZ4_getPositionOnHash(U32 h, const void* tableBase, tableType_t tableType, const BYTE* srcBase)
{
if (tableType == byPtr) { const BYTE* const* hashTable = (const BYTE* const*) tableBase; return hashTable[h]; }
if (tableType == byU32) { const U32* const hashTable = (const U32*) tableBase; return hashTable[h] + srcBase; }
{ const U16* const hashTable = (const U16*) tableBase; return hashTable[h] + srcBase; } /* default, to ensure a return */
}
LZ4_FORCE_INLINE const BYTE*
LZ4_getPosition(const BYTE* p,
const void* tableBase, tableType_t tableType,
const BYTE* srcBase)
{
U32 const h = LZ4_hashPosition(p, tableType);
return LZ4_getPositionOnHash(h, tableBase, tableType, srcBase);
}
LZ4_FORCE_INLINE void
LZ4_prepareTable(LZ4_stream_t_internal* const cctx,
const int inputSize,
const tableType_t tableType) {
/* If the table hasn't been used, it's guaranteed to be zeroed out, and is
* therefore safe to use no matter what mode we're in. Otherwise, we figure
* out if it's safe to leave as is or whether it needs to be reset.
*/
if ((tableType_t)cctx->tableType != clearedTable) {
assert(inputSize >= 0);
if ((tableType_t)cctx->tableType != tableType
|| ((tableType == byU16) && cctx->currentOffset + (unsigned)inputSize >= 0xFFFFU)
|| ((tableType == byU32) && cctx->currentOffset > 1 GB)
|| tableType == byPtr
|| inputSize >= 4 KB)
{
DEBUGLOG(4, "LZ4_prepareTable: Resetting table in %p", cctx);
MEM_INIT(cctx->hashTable, 0, LZ4_HASHTABLESIZE);
cctx->currentOffset = 0;
cctx->tableType = (U32)clearedTable;
} else {
DEBUGLOG(4, "LZ4_prepareTable: Re-use hash table (no reset)");
}
}
/* Adding a gap, so all previous entries are > LZ4_DISTANCE_MAX back,
* is faster than compressing without a gap.
* However, compressing with currentOffset == 0 is faster still,
* so we preserve that case.
*/
if (cctx->currentOffset != 0 && tableType == byU32) {
DEBUGLOG(5, "LZ4_prepareTable: adding 64KB to currentOffset");
cctx->currentOffset += 64 KB;
}
/* Finally, clear history */
cctx->dictCtx = NULL;
cctx->dictionary = NULL;
cctx->dictSize = 0;
}
/** LZ4_compress_generic() :
* inlined, to ensure branches are decided at compilation time.
* Presumed already validated at this stage:
* - source != NULL
* - inputSize > 0
*/
LZ4_FORCE_INLINE int LZ4_compress_generic_validated(
LZ4_stream_t_internal* const cctx,
const char* const source,
char* const dest,
const int inputSize,
int* inputConsumed, /* only written when outputDirective == fillOutput */
const int maxOutputSize,
const limitedOutput_directive outputDirective,
const tableType_t tableType,
const dict_directive dictDirective,
const dictIssue_directive dictIssue,
const int acceleration)
{
int result;
const BYTE* ip = (const BYTE*) source;
U32 const startIndex = cctx->currentOffset;
const BYTE* base = (const BYTE*) source - startIndex;
const BYTE* lowLimit;
const LZ4_stream_t_internal* dictCtx = (const LZ4_stream_t_internal*) cctx->dictCtx;
const BYTE* const dictionary =
dictDirective == usingDictCtx ? dictCtx->dictionary : cctx->dictionary;
const U32 dictSize =
dictDirective == usingDictCtx ? dictCtx->dictSize : cctx->dictSize;
const U32 dictDelta = (dictDirective == usingDictCtx) ? startIndex - dictCtx->currentOffset : 0; /* make indexes in dictCtx comparable with index in current context */
int const maybe_extMem = (dictDirective == usingExtDict) || (dictDirective == usingDictCtx);
U32 const prefixIdxLimit = startIndex - dictSize; /* used when dictDirective == dictSmall */
const BYTE* const dictEnd = dictionary ? dictionary + dictSize : dictionary;
const BYTE* anchor = (const BYTE*) source;
const BYTE* const iend = ip + inputSize;
const BYTE* const mflimitPlusOne = iend - MFLIMIT + 1;
const BYTE* const matchlimit = iend - LASTLITERALS;
/* the dictCtx currentOffset is indexed on the start of the dictionary,
* while a dictionary in the current context precedes the currentOffset */
const BYTE* dictBase = (dictionary == NULL) ? NULL :
(dictDirective == usingDictCtx) ?
dictionary + dictSize - dictCtx->currentOffset :
dictionary + dictSize - startIndex;
BYTE* op = (BYTE*) dest;
BYTE* const olimit = op + maxOutputSize;
U32 offset = 0;
U32 forwardH;
DEBUGLOG(5, "LZ4_compress_generic_validated: srcSize=%i, tableType=%u", inputSize, tableType);
assert(ip != NULL);
/* If init conditions are not met, we don't have to mark stream
* as having dirty context, since no action was taken yet */
if (outputDirective == fillOutput && maxOutputSize < 1) { return 0; } /* Impossible to store anything */
if ((tableType == byU16) && (inputSize>=LZ4_64Klimit)) { return 0; } /* Size too large (not within 64K limit) */
if (tableType==byPtr) assert(dictDirective==noDict); /* only supported use case with byPtr */
assert(acceleration >= 1);
lowLimit = (const BYTE*)source - (dictDirective == withPrefix64k ? dictSize : 0);
/* Update context state */
if (dictDirective == usingDictCtx) {
/* Subsequent linked blocks can't use the dictionary. */
/* Instead, they use the block we just compressed. */
cctx->dictCtx = NULL;
cctx->dictSize = (U32)inputSize;
} else {
cctx->dictSize += (U32)inputSize;
}
cctx->currentOffset += (U32)inputSize;
cctx->tableType = (U32)tableType;
if (inputSize<LZ4_minLength) goto _last_literals; /* Input too small, no compression (all literals) */
/* First Byte */
LZ4_putPosition(ip, cctx->hashTable, tableType, base);
ip++; forwardH = LZ4_hashPosition(ip, tableType);
/* Main Loop */
for ( ; ; ) {
const BYTE* match;
BYTE* token;
const BYTE* filledIp;
/* Find a match */
if (tableType == byPtr) {
const BYTE* forwardIp = ip;
int step = 1;
int searchMatchNb = acceleration << LZ4_skipTrigger;
do {
U32 const h = forwardH;
ip = forwardIp;
forwardIp += step;
step = (searchMatchNb++ >> LZ4_skipTrigger);
if (unlikely(forwardIp > mflimitPlusOne)) goto _last_literals;
assert(ip < mflimitPlusOne);
match = LZ4_getPositionOnHash(h, cctx->hashTable, tableType, base);
forwardH = LZ4_hashPosition(forwardIp, tableType);
LZ4_putPositionOnHash(ip, h, cctx->hashTable, tableType, base);
} while ( (match+LZ4_DISTANCE_MAX < ip)
|| (LZ4_read32(match) != LZ4_read32(ip)) );
} else { /* byU32, byU16 */
const BYTE* forwardIp = ip;
int step = 1;
int searchMatchNb = acceleration << LZ4_skipTrigger;
do {
U32 const h = forwardH;
U32 const current = (U32)(forwardIp - base);
U32 matchIndex = LZ4_getIndexOnHash(h, cctx->hashTable, tableType);
assert(matchIndex <= current);
assert(forwardIp - base < (ptrdiff_t)(2 GB - 1));
ip = forwardIp;
forwardIp += step;
step = (searchMatchNb++ >> LZ4_skipTrigger);
if (unlikely(forwardIp > mflimitPlusOne)) goto _last_literals;
assert(ip < mflimitPlusOne);
if (dictDirective == usingDictCtx) {
if (matchIndex < startIndex) {
/* there was no match, try the dictionary */
assert(tableType == byU32);
matchIndex = LZ4_getIndexOnHash(h, dictCtx->hashTable, byU32);
match = dictBase + matchIndex;
matchIndex += dictDelta; /* make dictCtx index comparable with current context */
lowLimit = dictionary;
} else {
match = base + matchIndex;
lowLimit = (const BYTE*)source;
}
} else if (dictDirective == usingExtDict) {
if (matchIndex < startIndex) {
DEBUGLOG(7, "extDict candidate: matchIndex=%5u < startIndex=%5u", matchIndex, startIndex);
assert(startIndex - matchIndex >= MINMATCH);
assert(dictBase);
match = dictBase + matchIndex;
lowLimit = dictionary;
} else {
match = base + matchIndex;
lowLimit = (const BYTE*)source;
}
} else { /* single continuous memory segment */
match = base + matchIndex;
}
forwardH = LZ4_hashPosition(forwardIp, tableType);
LZ4_putIndexOnHash(current, h, cctx->hashTable, tableType);
DEBUGLOG(7, "candidate at pos=%u (offset=%u \n", matchIndex, current - matchIndex);
if ((dictIssue == dictSmall) && (matchIndex < prefixIdxLimit)) { continue; } /* match outside of valid area */
assert(matchIndex < current);
if ( ((tableType != byU16) || (LZ4_DISTANCE_MAX < LZ4_DISTANCE_ABSOLUTE_MAX))
&& (matchIndex+LZ4_DISTANCE_MAX < current)) {
continue;
} /* too far */
assert((current - matchIndex) <= LZ4_DISTANCE_MAX); /* match now expected within distance */
if (LZ4_read32(match) == LZ4_read32(ip)) {
if (maybe_extMem) offset = current - matchIndex;
break; /* match found */
}
} while(1);
}
/* Catch up */
filledIp = ip;
while (((ip>anchor) & (match > lowLimit)) && (unlikely(ip[-1]==match[-1]))) { ip--; match--; }
/* Encode Literals */
{ unsigned const litLength = (unsigned)(ip - anchor);
token = op++;
if ((outputDirective == limitedOutput) && /* Check output buffer overflow */
(unlikely(op + litLength + (2 + 1 + LASTLITERALS) + (litLength/255) > olimit)) ) {
return 0; /* cannot compress within `dst` budget. Stored indexes in hash table are nonetheless fine */
}
if ((outputDirective == fillOutput) &&
(unlikely(op + (litLength+240)/255 /* litlen */ + litLength /* literals */ + 2 /* offset */ + 1 /* token */ + MFLIMIT - MINMATCH /* min last literals so last match is <= end - MFLIMIT */ > olimit))) {
op--;
goto _last_literals;
}
if (litLength >= RUN_MASK) {
int len = (int)(litLength - RUN_MASK);
*token = (RUN_MASK<<ML_BITS);
for(; len >= 255 ; len-=255) *op++ = 255;
*op++ = (BYTE)len;
}
else *token = (BYTE)(litLength<<ML_BITS);
/* Copy Literals */
LZ4_wildCopy8(op, anchor, op+litLength);
op+=litLength;
DEBUGLOG(6, "seq.start:%i, literals=%u, match.start:%i",
(int)(anchor-(const BYTE*)source), litLength, (int)(ip-(const BYTE*)source));
}
_next_match:
/* at this stage, the following variables must be correctly set :
* - ip : at start of LZ operation
* - match : at start of previous pattern occurrence; can be within current prefix, or within extDict
* - offset : if maybe_ext_memSegment==1 (constant)
* - lowLimit : must be == dictionary to mean "match is within extDict"; must be == source otherwise
* - token and *token : position to write 4-bits for match length; higher 4-bits for literal length supposed already written
*/
if ((outputDirective == fillOutput) &&
(op + 2 /* offset */ + 1 /* token */ + MFLIMIT - MINMATCH /* min last literals so last match is <= end - MFLIMIT */ > olimit)) {
/* the match was too close to the end, rewind and go to last literals */
op = token;
goto _last_literals;
}
/* Encode Offset */
if (maybe_extMem) { /* static test */
DEBUGLOG(6, " with offset=%u (ext if > %i)", offset, (int)(ip - (const BYTE*)source));
assert(offset <= LZ4_DISTANCE_MAX && offset > 0);
LZ4_writeLE16(op, (U16)offset); op+=2;
} else {
DEBUGLOG(6, " with offset=%u (same segment)", (U32)(ip - match));
assert(ip-match <= LZ4_DISTANCE_MAX);
LZ4_writeLE16(op, (U16)(ip - match)); op+=2;
}
/* Encode MatchLength */
{ unsigned matchCode;
if ( (dictDirective==usingExtDict || dictDirective==usingDictCtx)
&& (lowLimit==dictionary) /* match within extDict */ ) {
const BYTE* limit = ip + (dictEnd-match);
assert(dictEnd > match);
if (limit > matchlimit) limit = matchlimit;
matchCode = LZ4_count(ip+MINMATCH, match+MINMATCH, limit);
ip += (size_t)matchCode + MINMATCH;
if (ip==limit) {
unsigned const more = LZ4_count(limit, (const BYTE*)source, matchlimit);
matchCode += more;
ip += more;
}
DEBUGLOG(6, " with matchLength=%u starting in extDict", matchCode+MINMATCH);
} else {
matchCode = LZ4_count(ip+MINMATCH, match+MINMATCH, matchlimit);
ip += (size_t)matchCode + MINMATCH;
DEBUGLOG(6, " with matchLength=%u", matchCode+MINMATCH);
}
if ((outputDirective) && /* Check output buffer overflow */
(unlikely(op + (1 + LASTLITERALS) + (matchCode+240)/255 > olimit)) ) {
if (outputDirective == fillOutput) {
/* Match description too long : reduce it */
U32 newMatchCode = 15 /* in token */ - 1 /* to avoid needing a zero byte */ + ((U32)(olimit - op) - 1 - LASTLITERALS) * 255;
ip -= matchCode - newMatchCode;
assert(newMatchCode < matchCode);
matchCode = newMatchCode;
if (unlikely(ip <= filledIp)) {
/* We have already filled up to filledIp so if ip ends up less than filledIp
* we have positions in the hash table beyond the current position. This is
* a problem if we reuse the hash table. So we have to remove these positions
* from the hash table.
*/
const BYTE* ptr;
DEBUGLOG(5, "Clearing %u positions", (U32)(filledIp - ip));
for (ptr = ip; ptr <= filledIp; ++ptr) {
U32 const h = LZ4_hashPosition(ptr, tableType);
LZ4_clearHash(h, cctx->hashTable, tableType);
}
}
} else {
assert(outputDirective == limitedOutput);
return 0; /* cannot compress within `dst` budget. Stored indexes in hash table are nonetheless fine */
}
}
if (matchCode >= ML_MASK) {
*token += ML_MASK;
matchCode -= ML_MASK;
LZ4_write32(op, 0xFFFFFFFF);
while (matchCode >= 4*255) {
op+=4;
LZ4_write32(op, 0xFFFFFFFF);
matchCode -= 4*255;
}
op += matchCode / 255;
*op++ = (BYTE)(matchCode % 255);
} else
*token += (BYTE)(matchCode);
}
/* Ensure we have enough space for the last literals. */
assert(!(outputDirective == fillOutput && op + 1 + LASTLITERALS > olimit));
anchor = ip;
/* Test end of chunk */
if (ip >= mflimitPlusOne) break;
/* Fill table */
LZ4_putPosition(ip-2, cctx->hashTable, tableType, base);
/* Test next position */
if (tableType == byPtr) {
match = LZ4_getPosition(ip, cctx->hashTable, tableType, base);
LZ4_putPosition(ip, cctx->hashTable, tableType, base);
if ( (match+LZ4_DISTANCE_MAX >= ip)
&& (LZ4_read32(match) == LZ4_read32(ip)) )
{ token=op++; *token=0; goto _next_match; }
} else { /* byU32, byU16 */
U32 const h = LZ4_hashPosition(ip, tableType);
U32 const current = (U32)(ip-base);
U32 matchIndex = LZ4_getIndexOnHash(h, cctx->hashTable, tableType);
assert(matchIndex < current);
if (dictDirective == usingDictCtx) {
if (matchIndex < startIndex) {
/* there was no match, try the dictionary */
matchIndex = LZ4_getIndexOnHash(h, dictCtx->hashTable, byU32);
match = dictBase + matchIndex;
lowLimit = dictionary; /* required for match length counter */
matchIndex += dictDelta;
} else {
match = base + matchIndex;
lowLimit = (const BYTE*)source; /* required for match length counter */
}
} else if (dictDirective==usingExtDict) {
if (matchIndex < startIndex) {
assert(dictBase);
match = dictBase + matchIndex;
lowLimit = dictionary; /* required for match length counter */
} else {
match = base + matchIndex;
lowLimit = (const BYTE*)source; /* required for match length counter */
}
} else { /* single memory segment */
match = base + matchIndex;
}
LZ4_putIndexOnHash(current, h, cctx->hashTable, tableType);
assert(matchIndex < current);
if ( ((dictIssue==dictSmall) ? (matchIndex >= prefixIdxLimit) : 1)
&& (((tableType==byU16) && (LZ4_DISTANCE_MAX == LZ4_DISTANCE_ABSOLUTE_MAX)) ? 1 : (matchIndex+LZ4_DISTANCE_MAX >= current))
&& (LZ4_read32(match) == LZ4_read32(ip)) ) {
token=op++;
*token=0;
if (maybe_extMem) offset = current - matchIndex;
DEBUGLOG(6, "seq.start:%i, literals=%u, match.start:%i",
(int)(anchor-(const BYTE*)source), 0, (int)(ip-(const BYTE*)source));
goto _next_match;
}
}
/* Prepare next loop */
forwardH = LZ4_hashPosition(++ip, tableType);
}
_last_literals:
/* Encode Last Literals */
{ size_t lastRun = (size_t)(iend - anchor);
if ( (outputDirective) && /* Check output buffer overflow */
(op + lastRun + 1 + ((lastRun+255-RUN_MASK)/255) > olimit)) {
if (outputDirective == fillOutput) {
/* adapt lastRun to fill 'dst' */
assert(olimit >= op);
lastRun = (size_t)(olimit-op) - 1/*token*/;
lastRun -= (lastRun + 256 - RUN_MASK) / 256; /*additional length tokens*/
} else {
assert(outputDirective == limitedOutput);
return 0; /* cannot compress within `dst` budget. Stored indexes in hash table are nonetheless fine */
}
}
DEBUGLOG(6, "Final literal run : %i literals", (int)lastRun);
if (lastRun >= RUN_MASK) {
size_t accumulator = lastRun - RUN_MASK;
*op++ = RUN_MASK << ML_BITS;
for(; accumulator >= 255 ; accumulator-=255) *op++ = 255;
*op++ = (BYTE) accumulator;
} else {
*op++ = (BYTE)(lastRun<<ML_BITS);
}
LZ4_memcpy(op, anchor, lastRun);
ip = anchor + lastRun;
op += lastRun;
}
if (outputDirective == fillOutput) {
*inputConsumed = (int) (((const char*)ip)-source);
}
result = (int)(((char*)op) - dest);
assert(result > 0);
DEBUGLOG(5, "LZ4_compress_generic: compressed %i bytes into %i bytes", inputSize, result);
return result;
}
/** LZ4_compress_generic() :
* inlined, to ensure branches are decided at compilation time;
* takes care of src == (NULL, 0)
* and forward the rest to LZ4_compress_generic_validated */
LZ4_FORCE_INLINE int LZ4_compress_generic(
LZ4_stream_t_internal* const cctx,
const char* const src,
char* const dst,
const int srcSize,
int *inputConsumed, /* only written when outputDirective == fillOutput */
const int dstCapacity,
const limitedOutput_directive outputDirective,
const tableType_t tableType,
const dict_directive dictDirective,
const dictIssue_directive dictIssue,
const int acceleration)
{
DEBUGLOG(5, "LZ4_compress_generic: srcSize=%i, dstCapacity=%i",
srcSize, dstCapacity);
if ((U32)srcSize > (U32)LZ4_MAX_INPUT_SIZE) { return 0; } /* Unsupported srcSize, too large (or negative) */
if (srcSize == 0) { /* src == NULL supported if srcSize == 0 */
if (outputDirective != notLimited && dstCapacity <= 0) return 0; /* no output, can't write anything */
DEBUGLOG(5, "Generating an empty block");
assert(outputDirective == notLimited || dstCapacity >= 1);
assert(dst != NULL);
dst[0] = 0;
if (outputDirective == fillOutput) {
assert (inputConsumed != NULL);
*inputConsumed = 0;
}
return 1;
}
assert(src != NULL);
return LZ4_compress_generic_validated(cctx, src, dst, srcSize,
inputConsumed, /* only written into if outputDirective == fillOutput */
dstCapacity, outputDirective,
tableType, dictDirective, dictIssue, acceleration);
}
int LZ4_compress_fast_extState(void* state, const char* source, char* dest, int inputSize, int maxOutputSize, int acceleration)
{
LZ4_stream_t_internal* const ctx = & LZ4_initStream(state, sizeof(LZ4_stream_t)) -> internal_donotuse;
assert(ctx != NULL);
if (acceleration < 1) acceleration = LZ4_ACCELERATION_DEFAULT;
if (acceleration > LZ4_ACCELERATION_MAX) acceleration = LZ4_ACCELERATION_MAX;
if (maxOutputSize >= LZ4_compressBound(inputSize)) {
if (inputSize < LZ4_64Klimit) {
return LZ4_compress_generic(ctx, source, dest, inputSize, NULL, 0, notLimited, byU16, noDict, noDictIssue, acceleration);
} else {
const tableType_t tableType = ((sizeof(void*)==4) && ((uptrval)source > LZ4_DISTANCE_MAX)) ? byPtr : byU32;
return LZ4_compress_generic(ctx, source, dest, inputSize, NULL, 0, notLimited, tableType, noDict, noDictIssue, acceleration);
}
} else {
if (inputSize < LZ4_64Klimit) {
return LZ4_compress_generic(ctx, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, byU16, noDict, noDictIssue, acceleration);
} else {
const tableType_t tableType = ((sizeof(void*)==4) && ((uptrval)source > LZ4_DISTANCE_MAX)) ? byPtr : byU32;
return LZ4_compress_generic(ctx, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, noDict, noDictIssue, acceleration);
}
}
}
/**
* LZ4_compress_fast_extState_fastReset() :
* A variant of LZ4_compress_fast_extState().
*
* Using this variant avoids an expensive initialization step. It is only safe
* to call if the state buffer is known to be correctly initialized already
* (see comment in lz4.h on LZ4_resetStream_fast() for a definition of
* "correctly initialized").
*/
int LZ4_compress_fast_extState_fastReset(void* state, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration)
{
LZ4_stream_t_internal* ctx = &((LZ4_stream_t*)state)->internal_donotuse;
if (acceleration < 1) acceleration = LZ4_ACCELERATION_DEFAULT;
if (acceleration > LZ4_ACCELERATION_MAX) acceleration = LZ4_ACCELERATION_MAX;
if (dstCapacity >= LZ4_compressBound(srcSize)) {
if (srcSize < LZ4_64Klimit) {
const tableType_t tableType = byU16;
LZ4_prepareTable(ctx, srcSize, tableType);
if (ctx->currentOffset) {
return LZ4_compress_generic(ctx, src, dst, srcSize, NULL, 0, notLimited, tableType, noDict, dictSmall, acceleration);
} else {
return LZ4_compress_generic(ctx, src, dst, srcSize, NULL, 0, notLimited, tableType, noDict, noDictIssue, acceleration);
}
} else {
const tableType_t tableType = ((sizeof(void*)==4) && ((uptrval)src > LZ4_DISTANCE_MAX)) ? byPtr : byU32;
LZ4_prepareTable(ctx, srcSize, tableType);
return LZ4_compress_generic(ctx, src, dst, srcSize, NULL, 0, notLimited, tableType, noDict, noDictIssue, acceleration);
}
} else {
if (srcSize < LZ4_64Klimit) {
const tableType_t tableType = byU16;
LZ4_prepareTable(ctx, srcSize, tableType);
if (ctx->currentOffset) {
return LZ4_compress_generic(ctx, src, dst, srcSize, NULL, dstCapacity, limitedOutput, tableType, noDict, dictSmall, acceleration);
} else {
return LZ4_compress_generic(ctx, src, dst, srcSize, NULL, dstCapacity, limitedOutput, tableType, noDict, noDictIssue, acceleration);
}
} else {
const tableType_t tableType = ((sizeof(void*)==4) && ((uptrval)src > LZ4_DISTANCE_MAX)) ? byPtr : byU32;
LZ4_prepareTable(ctx, srcSize, tableType);
return LZ4_compress_generic(ctx, src, dst, srcSize, NULL, dstCapacity, limitedOutput, tableType, noDict, noDictIssue, acceleration);
}
}
}
int LZ4_compress_fast(const char* source, char* dest, int inputSize, int maxOutputSize, int acceleration)
{
int result;
#if (LZ4_HEAPMODE)
LZ4_stream_t* ctxPtr = (LZ4_stream_t*)ALLOC(sizeof(LZ4_stream_t)); /* malloc-calloc always properly aligned */
if (ctxPtr == NULL) return 0;
#else
LZ4_stream_t ctx;
LZ4_stream_t* const ctxPtr = &ctx;
#endif
result = LZ4_compress_fast_extState(ctxPtr, source, dest, inputSize, maxOutputSize, acceleration);
#if (LZ4_HEAPMODE)
FREEMEM(ctxPtr);
#endif
return result;
}
int LZ4_compress_default(const char* src, char* dst, int srcSize, int maxOutputSize)
{
return LZ4_compress_fast(src, dst, srcSize, maxOutputSize, 1);
}
/* Note!: This function leaves the stream in an unclean/broken state!
* It is not safe to subsequently use the same state with a _fastReset() or
* _continue() call without resetting it. */
static int LZ4_compress_destSize_extState (LZ4_stream_t* state, const char* src, char* dst, int* srcSizePtr, int targetDstSize)
{
void* const s = LZ4_initStream(state, sizeof (*state));
assert(s != NULL); (void)s;
if (targetDstSize >= LZ4_compressBound(*srcSizePtr)) { /* compression success is guaranteed */
return LZ4_compress_fast_extState(state, src, dst, *srcSizePtr, targetDstSize, 1);
} else {
if (*srcSizePtr < LZ4_64Klimit) {
return LZ4_compress_generic(&state->internal_donotuse, src, dst, *srcSizePtr, srcSizePtr, targetDstSize, fillOutput, byU16, noDict, noDictIssue, 1);
} else {
tableType_t const addrMode = ((sizeof(void*)==4) && ((uptrval)src > LZ4_DISTANCE_MAX)) ? byPtr : byU32;
return LZ4_compress_generic(&state->internal_donotuse, src, dst, *srcSizePtr, srcSizePtr, targetDstSize, fillOutput, addrMode, noDict, noDictIssue, 1);
} }
}
int LZ4_compress_destSize(const char* src, char* dst, int* srcSizePtr, int targetDstSize)
{
#if (LZ4_HEAPMODE)
LZ4_stream_t* ctx = (LZ4_stream_t*)ALLOC(sizeof(LZ4_stream_t)); /* malloc-calloc always properly aligned */
if (ctx == NULL) return 0;
#else
LZ4_stream_t ctxBody;
LZ4_stream_t* ctx = &ctxBody;
#endif
int result = LZ4_compress_destSize_extState(ctx, src, dst, srcSizePtr, targetDstSize);
#if (LZ4_HEAPMODE)
FREEMEM(ctx);
#endif
return result;
}
/*-******************************
* Streaming functions
********************************/
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
LZ4_stream_t* LZ4_createStream(void)
{
LZ4_stream_t* const lz4s = (LZ4_stream_t*)ALLOC(sizeof(LZ4_stream_t));
LZ4_STATIC_ASSERT(sizeof(LZ4_stream_t) >= sizeof(LZ4_stream_t_internal));
DEBUGLOG(4, "LZ4_createStream %p", lz4s);
if (lz4s == NULL) return NULL;
LZ4_initStream(lz4s, sizeof(*lz4s));
return lz4s;
}
#endif
static size_t LZ4_stream_t_alignment(void)
{
#if LZ4_ALIGN_TEST
typedef struct { char c; LZ4_stream_t t; } t_a;
return sizeof(t_a) - sizeof(LZ4_stream_t);
#else
return 1; /* effectively disabled */
#endif
}
LZ4_stream_t* LZ4_initStream (void* buffer, size_t size)
{
DEBUGLOG(5, "LZ4_initStream");
if (buffer == NULL) { return NULL; }
if (size < sizeof(LZ4_stream_t)) { return NULL; }
if (!LZ4_isAligned(buffer, LZ4_stream_t_alignment())) return NULL;
MEM_INIT(buffer, 0, sizeof(LZ4_stream_t_internal));
return (LZ4_stream_t*)buffer;
}
/* resetStream is now deprecated,
* prefer initStream() which is more general */
void LZ4_resetStream (LZ4_stream_t* LZ4_stream)
{
DEBUGLOG(5, "LZ4_resetStream (ctx:%p)", LZ4_stream);
MEM_INIT(LZ4_stream, 0, sizeof(LZ4_stream_t_internal));
}
void LZ4_resetStream_fast(LZ4_stream_t* ctx) {
LZ4_prepareTable(&(ctx->internal_donotuse), 0, byU32);
}
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
int LZ4_freeStream (LZ4_stream_t* LZ4_stream)
{
if (!LZ4_stream) return 0; /* support free on NULL */
DEBUGLOG(5, "LZ4_freeStream %p", LZ4_stream);
FREEMEM(LZ4_stream);
return (0);
}
#endif
#define HASH_UNIT sizeof(reg_t)
int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize)
{
LZ4_stream_t_internal* dict = &LZ4_dict->internal_donotuse;
const tableType_t tableType = byU32;
const BYTE* p = (const BYTE*)dictionary;
const BYTE* const dictEnd = p + dictSize;
const BYTE* base;
DEBUGLOG(4, "LZ4_loadDict (%i bytes from %p into %p)", dictSize, dictionary, LZ4_dict);
/* It's necessary to reset the context,
* and not just continue it with prepareTable()
* to avoid any risk of generating overflowing matchIndex
* when compressing using this dictionary */
LZ4_resetStream(LZ4_dict);
/* We always increment the offset by 64 KB, since, if the dict is longer,
* we truncate it to the last 64k, and if it's shorter, we still want to
* advance by a whole window length so we can provide the guarantee that
* there are only valid offsets in the window, which allows an optimization
* in LZ4_compress_fast_continue() where it uses noDictIssue even when the
* dictionary isn't a full 64k. */
dict->currentOffset += 64 KB;
if (dictSize < (int)HASH_UNIT) {
return 0;
}
if ((dictEnd - p) > 64 KB) p = dictEnd - 64 KB;
base = dictEnd - dict->currentOffset;
dict->dictionary = p;
dict->dictSize = (U32)(dictEnd - p);
dict->tableType = (U32)tableType;
while (p <= dictEnd-HASH_UNIT) {
LZ4_putPosition(p, dict->hashTable, tableType, base);
p+=3;
}
return (int)dict->dictSize;
}
void LZ4_attach_dictionary(LZ4_stream_t* workingStream, const LZ4_stream_t* dictionaryStream)
{
const LZ4_stream_t_internal* dictCtx = (dictionaryStream == NULL) ? NULL :
&(dictionaryStream->internal_donotuse);
DEBUGLOG(4, "LZ4_attach_dictionary (%p, %p, size %u)",
workingStream, dictionaryStream,
dictCtx != NULL ? dictCtx->dictSize : 0);
if (dictCtx != NULL) {
/* If the current offset is zero, we will never look in the
* external dictionary context, since there is no value a table
* entry can take that indicate a miss. In that case, we need
* to bump the offset to something non-zero.
*/
if (workingStream->internal_donotuse.currentOffset == 0) {
workingStream->internal_donotuse.currentOffset = 64 KB;
}
/* Don't actually attach an empty dictionary.
*/
if (dictCtx->dictSize == 0) {
dictCtx = NULL;
}
}
workingStream->internal_donotuse.dictCtx = dictCtx;
}
static void LZ4_renormDictT(LZ4_stream_t_internal* LZ4_dict, int nextSize)
{
assert(nextSize >= 0);
if (LZ4_dict->currentOffset + (unsigned)nextSize > 0x80000000) { /* potential ptrdiff_t overflow (32-bits mode) */
/* rescale hash table */
U32 const delta = LZ4_dict->currentOffset - 64 KB;
const BYTE* dictEnd = LZ4_dict->dictionary + LZ4_dict->dictSize;
int i;
DEBUGLOG(4, "LZ4_renormDictT");
for (i=0; i<LZ4_HASH_SIZE_U32; i++) {
if (LZ4_dict->hashTable[i] < delta) LZ4_dict->hashTable[i]=0;
else LZ4_dict->hashTable[i] -= delta;
}
LZ4_dict->currentOffset = 64 KB;
if (LZ4_dict->dictSize > 64 KB) LZ4_dict->dictSize = 64 KB;
LZ4_dict->dictionary = dictEnd - LZ4_dict->dictSize;
}
}
int LZ4_compress_fast_continue (LZ4_stream_t* LZ4_stream,
const char* source, char* dest,
int inputSize, int maxOutputSize,
int acceleration)
{
const tableType_t tableType = byU32;
LZ4_stream_t_internal* const streamPtr = &LZ4_stream->internal_donotuse;
const char* dictEnd = streamPtr->dictSize ? (const char*)streamPtr->dictionary + streamPtr->dictSize : NULL;
DEBUGLOG(5, "LZ4_compress_fast_continue (inputSize=%i, dictSize=%u)", inputSize, streamPtr->dictSize);
LZ4_renormDictT(streamPtr, inputSize); /* fix index overflow */
if (acceleration < 1) acceleration = LZ4_ACCELERATION_DEFAULT;
if (acceleration > LZ4_ACCELERATION_MAX) acceleration = LZ4_ACCELERATION_MAX;
/* invalidate tiny dictionaries */
if ( (streamPtr->dictSize < 4) /* tiny dictionary : not enough for a hash */
&& (dictEnd != source) /* prefix mode */
&& (inputSize > 0) /* tolerance : don't lose history, in case next invocation would use prefix mode */
&& (streamPtr->dictCtx == NULL) /* usingDictCtx */
) {
DEBUGLOG(5, "LZ4_compress_fast_continue: dictSize(%u) at addr:%p is too small", streamPtr->dictSize, streamPtr->dictionary);
/* remove dictionary existence from history, to employ faster prefix mode */
streamPtr->dictSize = 0;
streamPtr->dictionary = (const BYTE*)source;
dictEnd = source;
}
/* Check overlapping input/dictionary space */
{ const char* const sourceEnd = source + inputSize;
if ((sourceEnd > (const char*)streamPtr->dictionary) && (sourceEnd < dictEnd)) {
streamPtr->dictSize = (U32)(dictEnd - sourceEnd);
if (streamPtr->dictSize > 64 KB) streamPtr->dictSize = 64 KB;
if (streamPtr->dictSize < 4) streamPtr->dictSize = 0;
streamPtr->dictionary = (const BYTE*)dictEnd - streamPtr->dictSize;
}
}
/* prefix mode : source data follows dictionary */
if (dictEnd == source) {
if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset))
return LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, withPrefix64k, dictSmall, acceleration);
else
return LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, withPrefix64k, noDictIssue, acceleration);
}
/* external dictionary mode */
{ int result;
if (streamPtr->dictCtx) {
/* We depend here on the fact that dictCtx'es (produced by
* LZ4_loadDict) guarantee that their tables contain no references
* to offsets between dictCtx->currentOffset - 64 KB and
* dictCtx->currentOffset - dictCtx->dictSize. This makes it safe
* to use noDictIssue even when the dict isn't a full 64 KB.
*/
if (inputSize > 4 KB) {
/* For compressing large blobs, it is faster to pay the setup
* cost to copy the dictionary's tables into the active context,
* so that the compression loop is only looking into one table.
*/
LZ4_memcpy(streamPtr, streamPtr->dictCtx, sizeof(*streamPtr));
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, usingExtDict, noDictIssue, acceleration);
} else {
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, usingDictCtx, noDictIssue, acceleration);
}
} else { /* small data <= 4 KB */
if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset)) {
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, usingExtDict, dictSmall, acceleration);
} else {
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, NULL, maxOutputSize, limitedOutput, tableType, usingExtDict, noDictIssue, acceleration);
}
}
streamPtr->dictionary = (const BYTE*)source;
streamPtr->dictSize = (U32)inputSize;
return result;
}
}
/* Hidden debug function, to force-test external dictionary mode */
int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_dict, const char* source, char* dest, int srcSize)
{
LZ4_stream_t_internal* streamPtr = &LZ4_dict->internal_donotuse;
int result;
LZ4_renormDictT(streamPtr, srcSize);
if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset)) {
result = LZ4_compress_generic(streamPtr, source, dest, srcSize, NULL, 0, notLimited, byU32, usingExtDict, dictSmall, 1);
} else {
result = LZ4_compress_generic(streamPtr, source, dest, srcSize, NULL, 0, notLimited, byU32, usingExtDict, noDictIssue, 1);
}
streamPtr->dictionary = (const BYTE*)source;
streamPtr->dictSize = (U32)srcSize;
return result;
}
/*! LZ4_saveDict() :
* If previously compressed data block is not guaranteed to remain available at its memory location,
* save it into a safer place (char* safeBuffer).
* Note : no need to call LZ4_loadDict() afterwards, dictionary is immediately usable,
* one can therefore call LZ4_compress_fast_continue() right after.
* @return : saved dictionary size in bytes (necessarily <= dictSize), or 0 if error.
*/
int LZ4_saveDict (LZ4_stream_t* LZ4_dict, char* safeBuffer, int dictSize)
{
LZ4_stream_t_internal* const dict = &LZ4_dict->internal_donotuse;
DEBUGLOG(5, "LZ4_saveDict : dictSize=%i, safeBuffer=%p", dictSize, safeBuffer);
if ((U32)dictSize > 64 KB) { dictSize = 64 KB; } /* useless to define a dictionary > 64 KB */
if ((U32)dictSize > dict->dictSize) { dictSize = (int)dict->dictSize; }
if (safeBuffer == NULL) assert(dictSize == 0);
if (dictSize > 0) {
const BYTE* const previousDictEnd = dict->dictionary + dict->dictSize;
assert(dict->dictionary);
LZ4_memmove(safeBuffer, previousDictEnd - dictSize, (size_t)dictSize);
}
dict->dictionary = (const BYTE*)safeBuffer;
dict->dictSize = (U32)dictSize;
return dictSize;
}
/*-*******************************
* Decompression functions
********************************/
typedef enum { decode_full_block = 0, partial_decode = 1 } earlyEnd_directive;
#undef MIN
#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
/* variant for decompress_unsafe()
* does not know end of input
* presumes input is well formed
* note : will consume at least one byte */
size_t read_long_length_no_check(const BYTE** pp)
{
size_t b, l = 0;
do { b = **pp; (*pp)++; l += b; } while (b==255);
DEBUGLOG(6, "read_long_length_no_check: +length=%zu using %zu input bytes", l, l/255 + 1)
return l;
}
/* core decoder variant for LZ4_decompress_fast*()
* for legacy support only : these entry points are deprecated.
* - Presumes input is correctly formed (no defense vs malformed inputs)
* - Does not know input size (presume input buffer is "large enough")
* - Decompress a full block (only)
* @return : nb of bytes read from input.
* Note : this variant is not optimized for speed, just for maintenance.
* the goal is to remove support of decompress_fast*() variants by v2.0
**/
LZ4_FORCE_INLINE int
LZ4_decompress_unsafe_generic(
const BYTE* const istart,
BYTE* const ostart,
int decompressedSize,
size_t prefixSize,
const BYTE* const dictStart, /* only if dict==usingExtDict */
const size_t dictSize /* note: =0 if dictStart==NULL */
)
{
const BYTE* ip = istart;
BYTE* op = (BYTE*)ostart;
BYTE* const oend = ostart + decompressedSize;
const BYTE* const prefixStart = ostart - prefixSize;
DEBUGLOG(5, "LZ4_decompress_unsafe_generic");
if (dictStart == NULL) assert(dictSize == 0);
while (1) {
/* start new sequence */
unsigned token = *ip++;
/* literals */
{ size_t ll = token >> ML_BITS;
if (ll==15) {
/* long literal length */
ll += read_long_length_no_check(&ip);
}
if ((size_t)(oend-op) < ll) return -1; /* output buffer overflow */
LZ4_memmove(op, ip, ll); /* support in-place decompression */
op += ll;
ip += ll;
if ((size_t)(oend-op) < MFLIMIT) {
if (op==oend) break; /* end of block */
DEBUGLOG(5, "invalid: literals end at distance %zi from end of block", oend-op);
/* incorrect end of block :
* last match must start at least MFLIMIT==12 bytes before end of output block */
return -1;
} }
/* match */
{ size_t ml = token & 15;
size_t const offset = LZ4_readLE16(ip);
ip+=2;
if (ml==15) {
/* long literal length */
ml += read_long_length_no_check(&ip);
}
ml += MINMATCH;
if ((size_t)(oend-op) < ml) return -1; /* output buffer overflow */
{ const BYTE* match = op - offset;
/* out of range */
if (offset > (size_t)(op - prefixStart) + dictSize) {
DEBUGLOG(6, "offset out of range");
return -1;
}
/* check special case : extDict */
if (offset > (size_t)(op - prefixStart)) {
/* extDict scenario */
const BYTE* const dictEnd = dictStart + dictSize;
const BYTE* extMatch = dictEnd - (offset - (size_t)(op-prefixStart));
size_t const extml = (size_t)(dictEnd - extMatch);
if (extml > ml) {
/* match entirely within extDict */
LZ4_memmove(op, extMatch, ml);
op += ml;
ml = 0;
} else {
/* match split between extDict & prefix */
LZ4_memmove(op, extMatch, extml);
op += extml;
ml -= extml;
}
match = prefixStart;
}
/* match copy - slow variant, supporting overlap copy */
{ size_t u;
for (u=0; u<ml; u++) {
op[u] = match[u];
} } }
op += ml;
if ((size_t)(oend-op) < LASTLITERALS) {
DEBUGLOG(5, "invalid: match ends at distance %zi from end of block", oend-op);
/* incorrect end of block :
* last match must stop at least LASTLITERALS==5 bytes before end of output block */
return -1;
}
} /* match */
} /* main loop */
return (int)(ip - istart);
}
/* Read the variable-length literal or match length.
*
* @ip : input pointer
* @ilimit : position after which if length is not decoded, the input is necessarily corrupted.
* @initial_check - check ip >= ipmax before start of loop. Returns initial_error if so.
* @error (output) - error code. Must be set to 0 before call.
**/
typedef size_t Rvl_t;
static const Rvl_t rvl_error = (Rvl_t)(-1);
LZ4_FORCE_INLINE Rvl_t
read_variable_length(const BYTE** ip, const BYTE* ilimit,
int initial_check)
{
Rvl_t s, length = 0;
assert(ip != NULL);
assert(*ip != NULL);
assert(ilimit != NULL);
if (initial_check && unlikely((*ip) >= ilimit)) { /* read limit reached */
return rvl_error;
}
do {
s = **ip;
(*ip)++;
length += s;
if (unlikely((*ip) > ilimit)) { /* read limit reached */
return rvl_error;
}
/* accumulator overflow detection (32-bit mode only) */
if ((sizeof(length)<8) && unlikely(length > ((Rvl_t)(-1)/2)) ) {
return rvl_error;
}
} while (s==255);
return length;
}
/*! LZ4_decompress_generic() :
* This generic decompression function covers all use cases.
* It shall be instantiated several times, using different sets of directives.
* Note that it is important for performance that this function really get inlined,
* in order to remove useless branches during compilation optimization.
*/
LZ4_FORCE_INLINE int
LZ4_decompress_generic(
const char* const src,
char* const dst,
int srcSize,
int outputSize, /* If endOnInput==endOnInputSize, this value is `dstCapacity` */
earlyEnd_directive partialDecoding, /* full, partial */
dict_directive dict, /* noDict, withPrefix64k, usingExtDict */
const BYTE* const lowPrefix, /* always <= dst, == dst when no prefix */
const BYTE* const dictStart, /* only if dict==usingExtDict */
const size_t dictSize /* note : = 0 if noDict */
)
{
if ((src == NULL) || (outputSize < 0)) { return -1; }
{ const BYTE* ip = (const BYTE*) src;
const BYTE* const iend = ip + srcSize;
BYTE* op = (BYTE*) dst;
BYTE* const oend = op + outputSize;
BYTE* cpy;
const BYTE* const dictEnd = (dictStart == NULL) ? NULL : dictStart + dictSize;
const int checkOffset = (dictSize < (int)(64 KB));
/* Set up the "end" pointers for the shortcut. */
const BYTE* const shortiend = iend - 14 /*maxLL*/ - 2 /*offset*/;
const BYTE* const shortoend = oend - 14 /*maxLL*/ - 18 /*maxML*/;
const BYTE* match;
size_t offset;
unsigned token;
size_t length;
DEBUGLOG(5, "LZ4_decompress_generic (srcSize:%i, dstSize:%i)", srcSize, outputSize);
/* Special cases */
assert(lowPrefix <= op);
if (unlikely(outputSize==0)) {
/* Empty output buffer */
if (partialDecoding) return 0;
return ((srcSize==1) && (*ip==0)) ? 0 : -1;
}
if (unlikely(srcSize==0)) { return -1; }
/* LZ4_FAST_DEC_LOOP:
* designed for modern OoO performance cpus,
* where copying reliably 32-bytes is preferable to an unpredictable branch.
* note : fast loop may show a regression for some client arm chips. */
#if LZ4_FAST_DEC_LOOP
if ((oend - op) < FASTLOOP_SAFE_DISTANCE) {
DEBUGLOG(6, "skip fast decode loop");
goto safe_decode;
}
/* Fast loop : decode sequences as long as output < oend-FASTLOOP_SAFE_DISTANCE */
while (1) {
/* Main fastloop assertion: We can always wildcopy FASTLOOP_SAFE_DISTANCE */
assert(oend - op >= FASTLOOP_SAFE_DISTANCE);
assert(ip < iend);
token = *ip++;
length = token >> ML_BITS; /* literal length */
/* decode literal length */
if (length == RUN_MASK) {
size_t const addl = read_variable_length(&ip, iend-RUN_MASK, 1);
if (addl == rvl_error) { goto _output_error; }
length += addl;
if (unlikely((uptrval)(op)+length<(uptrval)(op))) { goto _output_error; } /* overflow detection */
if (unlikely((uptrval)(ip)+length<(uptrval)(ip))) { goto _output_error; } /* overflow detection */
/* copy literals */
cpy = op+length;
LZ4_STATIC_ASSERT(MFLIMIT >= WILDCOPYLENGTH);
if ((cpy>oend-32) || (ip+length>iend-32)) { goto safe_literal_copy; }
LZ4_wildCopy32(op, ip, cpy);
ip += length; op = cpy;
} else {
cpy = op+length;
DEBUGLOG(7, "copy %u bytes in a 16-bytes stripe", (unsigned)length);
/* We don't need to check oend, since we check it once for each loop below */
if (ip > iend-(16 + 1/*max lit + offset + nextToken*/)) { goto safe_literal_copy; }
/* Literals can only be <= 14, but hope compilers optimize better when copy by a register size */
LZ4_memcpy(op, ip, 16);
ip += length; op = cpy;
}
/* get offset */
offset = LZ4_readLE16(ip); ip+=2;
match = op - offset;
assert(match <= op); /* overflow check */
/* get matchlength */
length = token & ML_MASK;
if (length == ML_MASK) {
size_t const addl = read_variable_length(&ip, iend - LASTLITERALS + 1, 0);
if (addl == rvl_error) { goto _output_error; }
length += addl;
length += MINMATCH;
if (unlikely((uptrval)(op)+length<(uptrval)op)) { goto _output_error; } /* overflow detection */
if ((checkOffset) && (unlikely(match + dictSize < lowPrefix))) { goto _output_error; } /* Error : offset outside buffers */
if (op + length >= oend - FASTLOOP_SAFE_DISTANCE) {
goto safe_match_copy;
}
} else {
length += MINMATCH;
if (op + length >= oend - FASTLOOP_SAFE_DISTANCE) {
goto safe_match_copy;
}
/* Fastpath check: skip LZ4_wildCopy32 when true */
if ((dict == withPrefix64k) || (match >= lowPrefix)) {
if (offset >= 8) {
assert(match >= lowPrefix);
assert(match <= op);
assert(op + 18 <= oend);
LZ4_memcpy(op, match, 8);
LZ4_memcpy(op+8, match+8, 8);
LZ4_memcpy(op+16, match+16, 2);
op += length;
continue;
} } }
if (checkOffset && (unlikely(match + dictSize < lowPrefix))) { goto _output_error; } /* Error : offset outside buffers */
/* match starting within external dictionary */
if ((dict==usingExtDict) && (match < lowPrefix)) {
assert(dictEnd != NULL);
if (unlikely(op+length > oend-LASTLITERALS)) {
if (partialDecoding) {
DEBUGLOG(7, "partialDecoding: dictionary match, close to dstEnd");
length = MIN(length, (size_t)(oend-op));
} else {
goto _output_error; /* end-of-block condition violated */
} }
if (length <= (size_t)(lowPrefix-match)) {
/* match fits entirely within external dictionary : just copy */
LZ4_memmove(op, dictEnd - (lowPrefix-match), length);
op += length;
} else {
/* match stretches into both external dictionary and current block */
size_t const copySize = (size_t)(lowPrefix - match);
size_t const restSize = length - copySize;
LZ4_memcpy(op, dictEnd - copySize, copySize);
op += copySize;
if (restSize > (size_t)(op - lowPrefix)) { /* overlap copy */
BYTE* const endOfMatch = op + restSize;
const BYTE* copyFrom = lowPrefix;
while (op < endOfMatch) { *op++ = *copyFrom++; }
} else {
LZ4_memcpy(op, lowPrefix, restSize);
op += restSize;
} }
continue;
}
/* copy match within block */
cpy = op + length;
assert((op <= oend) && (oend-op >= 32));
if (unlikely(offset<16)) {
LZ4_memcpy_using_offset(op, match, cpy, offset);
} else {
LZ4_wildCopy32(op, match, cpy);
}
op = cpy; /* wildcopy correction */
}
safe_decode:
#endif
/* Main Loop : decode remaining sequences where output < FASTLOOP_SAFE_DISTANCE */
while (1) {
assert(ip < iend);
token = *ip++;
length = token >> ML_BITS; /* literal length */
/* A two-stage shortcut for the most common case:
* 1) If the literal length is 0..14, and there is enough space,
* enter the shortcut and copy 16 bytes on behalf of the literals
* (in the fast mode, only 8 bytes can be safely copied this way).
* 2) Further if the match length is 4..18, copy 18 bytes in a similar
* manner; but we ensure that there's enough space in the output for
* those 18 bytes earlier, upon entering the shortcut (in other words,
* there is a combined check for both stages).
*/
if ( (length != RUN_MASK)
/* strictly "less than" on input, to re-enter the loop with at least one byte */
&& likely((ip < shortiend) & (op <= shortoend)) ) {
/* Copy the literals */
LZ4_memcpy(op, ip, 16);
op += length; ip += length;
/* The second stage: prepare for match copying, decode full info.
* If it doesn't work out, the info won't be wasted. */
length = token & ML_MASK; /* match length */
offset = LZ4_readLE16(ip); ip += 2;
match = op - offset;
assert(match <= op); /* check overflow */
/* Do not deal with overlapping matches. */
if ( (length != ML_MASK)
&& (offset >= 8)
&& (dict==withPrefix64k || match >= lowPrefix) ) {
/* Copy the match. */
LZ4_memcpy(op + 0, match + 0, 8);
LZ4_memcpy(op + 8, match + 8, 8);
LZ4_memcpy(op +16, match +16, 2);
op += length + MINMATCH;
/* Both stages worked, load the next token. */
continue;
}
/* The second stage didn't work out, but the info is ready.
* Propel it right to the point of match copying. */
goto _copy_match;
}
/* decode literal length */
if (length == RUN_MASK) {
size_t const addl = read_variable_length(&ip, iend-RUN_MASK, 1);
if (addl == rvl_error) { goto _output_error; }
length += addl;
if (unlikely((uptrval)(op)+length<(uptrval)(op))) { goto _output_error; } /* overflow detection */
if (unlikely((uptrval)(ip)+length<(uptrval)(ip))) { goto _output_error; } /* overflow detection */
}
/* copy literals */
cpy = op+length;
#if LZ4_FAST_DEC_LOOP
safe_literal_copy:
#endif
LZ4_STATIC_ASSERT(MFLIMIT >= WILDCOPYLENGTH);
if ((cpy>oend-MFLIMIT) || (ip+length>iend-(2+1+LASTLITERALS))) {
/* We've either hit the input parsing restriction or the output parsing restriction.
* In the normal scenario, decoding a full block, it must be the last sequence,
* otherwise it's an error (invalid input or dimensions).
* In partialDecoding scenario, it's necessary to ensure there is no buffer overflow.
*/
if (partialDecoding) {
/* Since we are partial decoding we may be in this block because of the output parsing
* restriction, which is not valid since the output buffer is allowed to be undersized.
*/
DEBUGLOG(7, "partialDecoding: copying literals, close to input or output end")
DEBUGLOG(7, "partialDecoding: literal length = %u", (unsigned)length);
DEBUGLOG(7, "partialDecoding: remaining space in dstBuffer : %i", (int)(oend - op));
DEBUGLOG(7, "partialDecoding: remaining space in srcBuffer : %i", (int)(iend - ip));
/* Finishing in the middle of a literals segment,
* due to lack of input.
*/
if (ip+length > iend) {
length = (size_t)(iend-ip);
cpy = op + length;
}
/* Finishing in the middle of a literals segment,
* due to lack of output space.
*/
if (cpy > oend) {
cpy = oend;
assert(op<=oend);
length = (size_t)(oend-op);
}
} else {
/* We must be on the last sequence (or invalid) because of the parsing limitations
* so check that we exactly consume the input and don't overrun the output buffer.
*/
if ((ip+length != iend) || (cpy > oend)) {
DEBUGLOG(6, "should have been last run of literals")
DEBUGLOG(6, "ip(%p) + length(%i) = %p != iend (%p)", ip, (int)length, ip+length, iend);
DEBUGLOG(6, "or cpy(%p) > oend(%p)", cpy, oend);
goto _output_error;
}
}
LZ4_memmove(op, ip, length); /* supports overlapping memory regions, for in-place decompression scenarios */
ip += length;
op += length;
/* Necessarily EOF when !partialDecoding.
* When partialDecoding, it is EOF if we've either
* filled the output buffer or
* can't proceed with reading an offset for following match.
*/
if (!partialDecoding || (cpy == oend) || (ip >= (iend-2))) {
break;
}
} else {
LZ4_wildCopy8(op, ip, cpy); /* can overwrite up to 8 bytes beyond cpy */
ip += length; op = cpy;
}
/* get offset */
offset = LZ4_readLE16(ip); ip+=2;
match = op - offset;
/* get matchlength */
length = token & ML_MASK;
_copy_match:
if (length == ML_MASK) {
size_t const addl = read_variable_length(&ip, iend - LASTLITERALS + 1, 0);
if (addl == rvl_error) { goto _output_error; }
length += addl;
if (unlikely((uptrval)(op)+length<(uptrval)op)) goto _output_error; /* overflow detection */
}
length += MINMATCH;
#if LZ4_FAST_DEC_LOOP
safe_match_copy:
#endif
if ((checkOffset) && (unlikely(match + dictSize < lowPrefix))) goto _output_error; /* Error : offset outside buffers */
/* match starting within external dictionary */
if ((dict==usingExtDict) && (match < lowPrefix)) {
assert(dictEnd != NULL);
if (unlikely(op+length > oend-LASTLITERALS)) {
if (partialDecoding) length = MIN(length, (size_t)(oend-op));
else goto _output_error; /* doesn't respect parsing restriction */
}
if (length <= (size_t)(lowPrefix-match)) {
/* match fits entirely within external dictionary : just copy */
LZ4_memmove(op, dictEnd - (lowPrefix-match), length);
op += length;
} else {
/* match stretches into both external dictionary and current block */
size_t const copySize = (size_t)(lowPrefix - match);
size_t const restSize = length - copySize;
LZ4_memcpy(op, dictEnd - copySize, copySize);
op += copySize;
if (restSize > (size_t)(op - lowPrefix)) { /* overlap copy */
BYTE* const endOfMatch = op + restSize;
const BYTE* copyFrom = lowPrefix;
while (op < endOfMatch) *op++ = *copyFrom++;
} else {
LZ4_memcpy(op, lowPrefix, restSize);
op += restSize;
} }
continue;
}
assert(match >= lowPrefix);
/* copy match within block */
cpy = op + length;
/* partialDecoding : may end anywhere within the block */
assert(op<=oend);
if (partialDecoding && (cpy > oend-MATCH_SAFEGUARD_DISTANCE)) {
size_t const mlen = MIN(length, (size_t)(oend-op));
const BYTE* const matchEnd = match + mlen;
BYTE* const copyEnd = op + mlen;
if (matchEnd > op) { /* overlap copy */
while (op < copyEnd) { *op++ = *match++; }
} else {
LZ4_memcpy(op, match, mlen);
}
op = copyEnd;
if (op == oend) { break; }
continue;
}
if (unlikely(offset<8)) {
LZ4_write32(op, 0); /* silence msan warning when offset==0 */
op[0] = match[0];
op[1] = match[1];
op[2] = match[2];
op[3] = match[3];
match += inc32table[offset];
LZ4_memcpy(op+4, match, 4);
match -= dec64table[offset];
} else {
LZ4_memcpy(op, match, 8);
match += 8;
}
op += 8;
if (unlikely(cpy > oend-MATCH_SAFEGUARD_DISTANCE)) {
BYTE* const oCopyLimit = oend - (WILDCOPYLENGTH-1);
if (cpy > oend-LASTLITERALS) { goto _output_error; } /* Error : last LASTLITERALS bytes must be literals (uncompressed) */
if (op < oCopyLimit) {
LZ4_wildCopy8(op, match, oCopyLimit);
match += oCopyLimit - op;
op = oCopyLimit;
}
while (op < cpy) { *op++ = *match++; }
} else {
LZ4_memcpy(op, match, 8);
if (length > 16) { LZ4_wildCopy8(op+8, match+8, cpy); }
}
op = cpy; /* wildcopy correction */
}
/* end of decoding */
DEBUGLOG(5, "decoded %i bytes", (int) (((char*)op)-dst));
return (int) (((char*)op)-dst); /* Nb of output bytes decoded */
/* Overflow error detected */
_output_error:
return (int) (-(((const char*)ip)-src))-1;
}
}
/*===== Instantiate the API decoding functions. =====*/
LZ4_FORCE_O2
int LZ4_decompress_safe(const char* source, char* dest, int compressedSize, int maxDecompressedSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxDecompressedSize,
decode_full_block, noDict,
(BYTE*)dest, NULL, 0);
}
LZ4_FORCE_O2
int LZ4_decompress_safe_partial(const char* src, char* dst, int compressedSize, int targetOutputSize, int dstCapacity)
{
dstCapacity = MIN(targetOutputSize, dstCapacity);
return LZ4_decompress_generic(src, dst, compressedSize, dstCapacity,
partial_decode,
noDict, (BYTE*)dst, NULL, 0);
}
LZ4_FORCE_O2
int LZ4_decompress_fast(const char* source, char* dest, int originalSize)
{
DEBUGLOG(5, "LZ4_decompress_fast");
return LZ4_decompress_unsafe_generic(
(const BYTE*)source, (BYTE*)dest, originalSize,
0, NULL, 0);
}
/*===== Instantiate a few more decoding cases, used more than once. =====*/
LZ4_FORCE_O2 /* Exported, an obsolete API function. */
int LZ4_decompress_safe_withPrefix64k(const char* source, char* dest, int compressedSize, int maxOutputSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize,
decode_full_block, withPrefix64k,
(BYTE*)dest - 64 KB, NULL, 0);
}
LZ4_FORCE_O2
static int LZ4_decompress_safe_partial_withPrefix64k(const char* source, char* dest, int compressedSize, int targetOutputSize, int dstCapacity)
{
dstCapacity = MIN(targetOutputSize, dstCapacity);
return LZ4_decompress_generic(source, dest, compressedSize, dstCapacity,
partial_decode, withPrefix64k,
(BYTE*)dest - 64 KB, NULL, 0);
}
/* Another obsolete API function, paired with the previous one. */
int LZ4_decompress_fast_withPrefix64k(const char* source, char* dest, int originalSize)
{
return LZ4_decompress_unsafe_generic(
(const BYTE*)source, (BYTE*)dest, originalSize,
64 KB, NULL, 0);
}
LZ4_FORCE_O2
static int LZ4_decompress_safe_withSmallPrefix(const char* source, char* dest, int compressedSize, int maxOutputSize,
size_t prefixSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize,
decode_full_block, noDict,
(BYTE*)dest-prefixSize, NULL, 0);
}
LZ4_FORCE_O2
static int LZ4_decompress_safe_partial_withSmallPrefix(const char* source, char* dest, int compressedSize, int targetOutputSize, int dstCapacity,
size_t prefixSize)
{
dstCapacity = MIN(targetOutputSize, dstCapacity);
return LZ4_decompress_generic(source, dest, compressedSize, dstCapacity,
partial_decode, noDict,
(BYTE*)dest-prefixSize, NULL, 0);
}
LZ4_FORCE_O2
int LZ4_decompress_safe_forceExtDict(const char* source, char* dest,
int compressedSize, int maxOutputSize,
const void* dictStart, size_t dictSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize,
decode_full_block, usingExtDict,
(BYTE*)dest, (const BYTE*)dictStart, dictSize);
}
LZ4_FORCE_O2
int LZ4_decompress_safe_partial_forceExtDict(const char* source, char* dest,
int compressedSize, int targetOutputSize, int dstCapacity,
const void* dictStart, size_t dictSize)
{
dstCapacity = MIN(targetOutputSize, dstCapacity);
return LZ4_decompress_generic(source, dest, compressedSize, dstCapacity,
partial_decode, usingExtDict,
(BYTE*)dest, (const BYTE*)dictStart, dictSize);
}
LZ4_FORCE_O2
static int LZ4_decompress_fast_extDict(const char* source, char* dest, int originalSize,
const void* dictStart, size_t dictSize)
{
return LZ4_decompress_unsafe_generic(
(const BYTE*)source, (BYTE*)dest, originalSize,
0, (const BYTE*)dictStart, dictSize);
}
/* The "double dictionary" mode, for use with e.g. ring buffers: the first part
* of the dictionary is passed as prefix, and the second via dictStart + dictSize.
* These routines are used only once, in LZ4_decompress_*_continue().
*/
LZ4_FORCE_INLINE
int LZ4_decompress_safe_doubleDict(const char* source, char* dest, int compressedSize, int maxOutputSize,
size_t prefixSize, const void* dictStart, size_t dictSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize,
decode_full_block, usingExtDict,
(BYTE*)dest-prefixSize, (const BYTE*)dictStart, dictSize);
}
/*===== streaming decompression functions =====*/
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
LZ4_streamDecode_t* LZ4_createStreamDecode(void)
{
LZ4_STATIC_ASSERT(sizeof(LZ4_streamDecode_t) >= sizeof(LZ4_streamDecode_t_internal));
return (LZ4_streamDecode_t*) ALLOC_AND_ZERO(sizeof(LZ4_streamDecode_t));
}
int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream)
{
if (LZ4_stream == NULL) { return 0; } /* support free on NULL */
FREEMEM(LZ4_stream);
return 0;
}
#endif
/*! LZ4_setStreamDecode() :
* Use this function to instruct where to find the dictionary.
* This function is not necessary if previous data is still available where it was decoded.
* Loading a size of 0 is allowed (same effect as no dictionary).
* @return : 1 if OK, 0 if error
*/
int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize)
{
LZ4_streamDecode_t_internal* lz4sd = &LZ4_streamDecode->internal_donotuse;
lz4sd->prefixSize = (size_t)dictSize;
if (dictSize) {
assert(dictionary != NULL);
lz4sd->prefixEnd = (const BYTE*) dictionary + dictSize;
} else {
lz4sd->prefixEnd = (const BYTE*) dictionary;
}
lz4sd->externalDict = NULL;
lz4sd->extDictSize = 0;
return 1;
}
/*! LZ4_decoderRingBufferSize() :
* when setting a ring buffer for streaming decompression (optional scenario),
* provides the minimum size of this ring buffer
* to be compatible with any source respecting maxBlockSize condition.
* Note : in a ring buffer scenario,
* blocks are presumed decompressed next to each other.
* When not enough space remains for next block (remainingSize < maxBlockSize),
* decoding resumes from beginning of ring buffer.
* @return : minimum ring buffer size,
* or 0 if there is an error (invalid maxBlockSize).
*/
int LZ4_decoderRingBufferSize(int maxBlockSize)
{
if (maxBlockSize < 0) return 0;
if (maxBlockSize > LZ4_MAX_INPUT_SIZE) return 0;
if (maxBlockSize < 16) maxBlockSize = 16;
return LZ4_DECODER_RING_BUFFER_SIZE(maxBlockSize);
}
/*
*_continue() :
These decoding functions allow decompression of multiple blocks in "streaming" mode.
Previously decoded blocks must still be available at the memory position where they were decoded.
If it's not possible, save the relevant part of decoded data into a safe buffer,
and indicate where it stands using LZ4_setStreamDecode()
*/
LZ4_FORCE_O2
int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int compressedSize, int maxOutputSize)
{
LZ4_streamDecode_t_internal* lz4sd = &LZ4_streamDecode->internal_donotuse;
int result;
if (lz4sd->prefixSize == 0) {
/* The first call, no dictionary yet. */
assert(lz4sd->extDictSize == 0);
result = LZ4_decompress_safe(source, dest, compressedSize, maxOutputSize);
if (result <= 0) return result;
lz4sd->prefixSize = (size_t)result;
lz4sd->prefixEnd = (BYTE*)dest + result;
} else if (lz4sd->prefixEnd == (BYTE*)dest) {
/* They're rolling the current segment. */
if (lz4sd->prefixSize >= 64 KB - 1)
result = LZ4_decompress_safe_withPrefix64k(source, dest, compressedSize, maxOutputSize);
else if (lz4sd->extDictSize == 0)
result = LZ4_decompress_safe_withSmallPrefix(source, dest, compressedSize, maxOutputSize,
lz4sd->prefixSize);
else
result = LZ4_decompress_safe_doubleDict(source, dest, compressedSize, maxOutputSize,
lz4sd->prefixSize, lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize += (size_t)result;
lz4sd->prefixEnd += result;
} else {
/* The buffer wraps around, or they're switching to another buffer. */
lz4sd->extDictSize = lz4sd->prefixSize;
lz4sd->externalDict = lz4sd->prefixEnd - lz4sd->extDictSize;
result = LZ4_decompress_safe_forceExtDict(source, dest, compressedSize, maxOutputSize,
lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize = (size_t)result;
lz4sd->prefixEnd = (BYTE*)dest + result;
}
return result;
}
LZ4_FORCE_O2 int
LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode,
const char* source, char* dest, int originalSize)
{
LZ4_streamDecode_t_internal* const lz4sd =
(assert(LZ4_streamDecode!=NULL), &LZ4_streamDecode->internal_donotuse);
int result;
DEBUGLOG(5, "LZ4_decompress_fast_continue (toDecodeSize=%i)", originalSize);
assert(originalSize >= 0);
if (lz4sd->prefixSize == 0) {
DEBUGLOG(5, "first invocation : no prefix nor extDict");
assert(lz4sd->extDictSize == 0);
result = LZ4_decompress_fast(source, dest, originalSize);
if (result <= 0) return result;
lz4sd->prefixSize = (size_t)originalSize;
lz4sd->prefixEnd = (BYTE*)dest + originalSize;
} else if (lz4sd->prefixEnd == (BYTE*)dest) {
DEBUGLOG(5, "continue using existing prefix");
result = LZ4_decompress_unsafe_generic(
(const BYTE*)source, (BYTE*)dest, originalSize,
lz4sd->prefixSize,
lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize += (size_t)originalSize;
lz4sd->prefixEnd += originalSize;
} else {
DEBUGLOG(5, "prefix becomes extDict");
lz4sd->extDictSize = lz4sd->prefixSize;
lz4sd->externalDict = lz4sd->prefixEnd - lz4sd->extDictSize;
result = LZ4_decompress_fast_extDict(source, dest, originalSize,
lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize = (size_t)originalSize;
lz4sd->prefixEnd = (BYTE*)dest + originalSize;
}
return result;
}
/*
Advanced decoding functions :
*_usingDict() :
These decoding functions work the same as "_continue" ones,
the dictionary must be explicitly provided within parameters
*/
int LZ4_decompress_safe_usingDict(const char* source, char* dest, int compressedSize, int maxOutputSize, const char* dictStart, int dictSize)
{
if (dictSize==0)
return LZ4_decompress_safe(source, dest, compressedSize, maxOutputSize);
if (dictStart+dictSize == dest) {
if (dictSize >= 64 KB - 1) {
return LZ4_decompress_safe_withPrefix64k(source, dest, compressedSize, maxOutputSize);
}
assert(dictSize >= 0);
return LZ4_decompress_safe_withSmallPrefix(source, dest, compressedSize, maxOutputSize, (size_t)dictSize);
}
assert(dictSize >= 0);
return LZ4_decompress_safe_forceExtDict(source, dest, compressedSize, maxOutputSize, dictStart, (size_t)dictSize);
}
int LZ4_decompress_safe_partial_usingDict(const char* source, char* dest, int compressedSize, int targetOutputSize, int dstCapacity, const char* dictStart, int dictSize)
{
if (dictSize==0)
return LZ4_decompress_safe_partial(source, dest, compressedSize, targetOutputSize, dstCapacity);
if (dictStart+dictSize == dest) {
if (dictSize >= 64 KB - 1) {
return LZ4_decompress_safe_partial_withPrefix64k(source, dest, compressedSize, targetOutputSize, dstCapacity);
}
assert(dictSize >= 0);
return LZ4_decompress_safe_partial_withSmallPrefix(source, dest, compressedSize, targetOutputSize, dstCapacity, (size_t)dictSize);
}
assert(dictSize >= 0);
return LZ4_decompress_safe_partial_forceExtDict(source, dest, compressedSize, targetOutputSize, dstCapacity, dictStart, (size_t)dictSize);
}
int LZ4_decompress_fast_usingDict(const char* source, char* dest, int originalSize, const char* dictStart, int dictSize)
{
if (dictSize==0 || dictStart+dictSize == dest)
return LZ4_decompress_unsafe_generic(
(const BYTE*)source, (BYTE*)dest, originalSize,
(size_t)dictSize, NULL, 0);
assert(dictSize >= 0);
return LZ4_decompress_fast_extDict(source, dest, originalSize, dictStart, (size_t)dictSize);
}
/*=*************************************************
* Obsolete Functions
***************************************************/
/* obsolete compression functions */
int LZ4_compress_limitedOutput(const char* source, char* dest, int inputSize, int maxOutputSize)
{
return LZ4_compress_default(source, dest, inputSize, maxOutputSize);
}
int LZ4_compress(const char* src, char* dest, int srcSize)
{
return LZ4_compress_default(src, dest, srcSize, LZ4_compressBound(srcSize));
}
int LZ4_compress_limitedOutput_withState (void* state, const char* src, char* dst, int srcSize, int dstSize)
{
return LZ4_compress_fast_extState(state, src, dst, srcSize, dstSize, 1);
}
int LZ4_compress_withState (void* state, const char* src, char* dst, int srcSize)
{
return LZ4_compress_fast_extState(state, src, dst, srcSize, LZ4_compressBound(srcSize), 1);
}
int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_stream, const char* src, char* dst, int srcSize, int dstCapacity)
{
return LZ4_compress_fast_continue(LZ4_stream, src, dst, srcSize, dstCapacity, 1);
}
int LZ4_compress_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize)
{
return LZ4_compress_fast_continue(LZ4_stream, source, dest, inputSize, LZ4_compressBound(inputSize), 1);
}
/*
These decompression functions are deprecated and should no longer be used.
They are only provided here for compatibility with older user programs.
- LZ4_uncompress is totally equivalent to LZ4_decompress_fast
- LZ4_uncompress_unknownOutputSize is totally equivalent to LZ4_decompress_safe
*/
int LZ4_uncompress (const char* source, char* dest, int outputSize)
{
return LZ4_decompress_fast(source, dest, outputSize);
}
int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize)
{
return LZ4_decompress_safe(source, dest, isize, maxOutputSize);
}
/* Obsolete Streaming functions */
int LZ4_sizeofStreamState(void) { return sizeof(LZ4_stream_t); }
int LZ4_resetStreamState(void* state, char* inputBuffer)
{
(void)inputBuffer;
LZ4_resetStream((LZ4_stream_t*)state);
return 0;
}
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
void* LZ4_create (char* inputBuffer)
{
(void)inputBuffer;
return LZ4_createStream();
}
#endif
char* LZ4_slideInputBuffer (void* state)
{
/* avoid const char * -> char * conversion warning */
return (char *)(uptrval)((LZ4_stream_t*)state)->internal_donotuse.dictionary;
}
#endif /* LZ4_COMMONDEFS_ONLY */
}
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracySystem.hpp | #ifndef __TRACYSYSTEM_HPP__
#define __TRACYSYSTEM_HPP__
#include <stdint.h>
#include "TracyApi.h"
namespace tracy
{
namespace detail
{
TRACY_API uint32_t GetThreadHandleImpl();
}
#ifdef TRACY_ENABLE
TRACY_API uint32_t GetThreadHandle();
#else
static inline uint32_t GetThreadHandle()
{
return detail::GetThreadHandleImpl();
}
#endif
TRACY_API void SetThreadName( const char* name );
TRACY_API const char* GetThreadName( uint32_t id );
TRACY_API const char* GetEnvVar(const char* name);
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyColor.hpp | #ifndef __TRACYCOLOR_HPP__
#define __TRACYCOLOR_HPP__
namespace tracy
{
struct Color
{
enum ColorType
{
Snow = 0xfffafa,
GhostWhite = 0xf8f8ff,
WhiteSmoke = 0xf5f5f5,
Gainsboro = 0xdcdcdc,
FloralWhite = 0xfffaf0,
OldLace = 0xfdf5e6,
Linen = 0xfaf0e6,
AntiqueWhite = 0xfaebd7,
PapayaWhip = 0xffefd5,
BlanchedAlmond = 0xffebcd,
Bisque = 0xffe4c4,
PeachPuff = 0xffdab9,
NavajoWhite = 0xffdead,
Moccasin = 0xffe4b5,
Cornsilk = 0xfff8dc,
Ivory = 0xfffff0,
LemonChiffon = 0xfffacd,
Seashell = 0xfff5ee,
Honeydew = 0xf0fff0,
MintCream = 0xf5fffa,
Azure = 0xf0ffff,
AliceBlue = 0xf0f8ff,
Lavender = 0xe6e6fa,
LavenderBlush = 0xfff0f5,
MistyRose = 0xffe4e1,
White = 0xffffff,
Black = 0x000000,
DarkSlateGray = 0x2f4f4f,
DarkSlateGrey = 0x2f4f4f,
DimGray = 0x696969,
DimGrey = 0x696969,
SlateGray = 0x708090,
SlateGrey = 0x708090,
LightSlateGray = 0x778899,
LightSlateGrey = 0x778899,
Gray = 0xbebebe,
Grey = 0xbebebe,
X11Gray = 0xbebebe,
X11Grey = 0xbebebe,
WebGray = 0x808080,
WebGrey = 0x808080,
LightGrey = 0xd3d3d3,
LightGray = 0xd3d3d3,
MidnightBlue = 0x191970,
Navy = 0x000080,
NavyBlue = 0x000080,
CornflowerBlue = 0x6495ed,
DarkSlateBlue = 0x483d8b,
SlateBlue = 0x6a5acd,
MediumSlateBlue = 0x7b68ee,
LightSlateBlue = 0x8470ff,
MediumBlue = 0x0000cd,
RoyalBlue = 0x4169e1,
Blue = 0x0000ff,
DodgerBlue = 0x1e90ff,
DeepSkyBlue = 0x00bfff,
SkyBlue = 0x87ceeb,
LightSkyBlue = 0x87cefa,
SteelBlue = 0x4682b4,
LightSteelBlue = 0xb0c4de,
LightBlue = 0xadd8e6,
PowderBlue = 0xb0e0e6,
PaleTurquoise = 0xafeeee,
DarkTurquoise = 0x00ced1,
MediumTurquoise = 0x48d1cc,
Turquoise = 0x40e0d0,
Cyan = 0x00ffff,
Aqua = 0x00ffff,
LightCyan = 0xe0ffff,
CadetBlue = 0x5f9ea0,
MediumAquamarine = 0x66cdaa,
Aquamarine = 0x7fffd4,
DarkGreen = 0x006400,
DarkOliveGreen = 0x556b2f,
DarkSeaGreen = 0x8fbc8f,
SeaGreen = 0x2e8b57,
MediumSeaGreen = 0x3cb371,
LightSeaGreen = 0x20b2aa,
PaleGreen = 0x98fb98,
SpringGreen = 0x00ff7f,
LawnGreen = 0x7cfc00,
Green = 0x00ff00,
Lime = 0x00ff00,
X11Green = 0x00ff00,
WebGreen = 0x008000,
Chartreuse = 0x7fff00,
MediumSpringGreen = 0x00fa9a,
GreenYellow = 0xadff2f,
LimeGreen = 0x32cd32,
YellowGreen = 0x9acd32,
ForestGreen = 0x228b22,
OliveDrab = 0x6b8e23,
DarkKhaki = 0xbdb76b,
Khaki = 0xf0e68c,
PaleGoldenrod = 0xeee8aa,
LightGoldenrodYellow = 0xfafad2,
LightYellow = 0xffffe0,
Yellow = 0xffff00,
Gold = 0xffd700,
LightGoldenrod = 0xeedd82,
Goldenrod = 0xdaa520,
DarkGoldenrod = 0xb8860b,
RosyBrown = 0xbc8f8f,
IndianRed = 0xcd5c5c,
SaddleBrown = 0x8b4513,
Sienna = 0xa0522d,
Peru = 0xcd853f,
Burlywood = 0xdeb887,
Beige = 0xf5f5dc,
Wheat = 0xf5deb3,
SandyBrown = 0xf4a460,
Tan = 0xd2b48c,
Chocolate = 0xd2691e,
Firebrick = 0xb22222,
Brown = 0xa52a2a,
DarkSalmon = 0xe9967a,
Salmon = 0xfa8072,
LightSalmon = 0xffa07a,
Orange = 0xffa500,
DarkOrange = 0xff8c00,
Coral = 0xff7f50,
LightCoral = 0xf08080,
Tomato = 0xff6347,
OrangeRed = 0xff4500,
Red = 0xff0000,
HotPink = 0xff69b4,
DeepPink = 0xff1493,
Pink = 0xffc0cb,
LightPink = 0xffb6c1,
PaleVioletRed = 0xdb7093,
Maroon = 0xb03060,
X11Maroon = 0xb03060,
WebMaroon = 0x800000,
MediumVioletRed = 0xc71585,
VioletRed = 0xd02090,
Magenta = 0xff00ff,
Fuchsia = 0xff00ff,
Violet = 0xee82ee,
Plum = 0xdda0dd,
Orchid = 0xda70d6,
MediumOrchid = 0xba55d3,
DarkOrchid = 0x9932cc,
DarkViolet = 0x9400d3,
BlueViolet = 0x8a2be2,
Purple = 0xa020f0,
X11Purple = 0xa020f0,
WebPurple = 0x800080,
MediumPurple = 0x9370db,
Thistle = 0xd8bfd8,
Snow1 = 0xfffafa,
Snow2 = 0xeee9e9,
Snow3 = 0xcdc9c9,
Snow4 = 0x8b8989,
Seashell1 = 0xfff5ee,
Seashell2 = 0xeee5de,
Seashell3 = 0xcdc5bf,
Seashell4 = 0x8b8682,
AntiqueWhite1 = 0xffefdb,
AntiqueWhite2 = 0xeedfcc,
AntiqueWhite3 = 0xcdc0b0,
AntiqueWhite4 = 0x8b8378,
Bisque1 = 0xffe4c4,
Bisque2 = 0xeed5b7,
Bisque3 = 0xcdb79e,
Bisque4 = 0x8b7d6b,
PeachPuff1 = 0xffdab9,
PeachPuff2 = 0xeecbad,
PeachPuff3 = 0xcdaf95,
PeachPuff4 = 0x8b7765,
NavajoWhite1 = 0xffdead,
NavajoWhite2 = 0xeecfa1,
NavajoWhite3 = 0xcdb38b,
NavajoWhite4 = 0x8b795e,
LemonChiffon1 = 0xfffacd,
LemonChiffon2 = 0xeee9bf,
LemonChiffon3 = 0xcdc9a5,
LemonChiffon4 = 0x8b8970,
Cornsilk1 = 0xfff8dc,
Cornsilk2 = 0xeee8cd,
Cornsilk3 = 0xcdc8b1,
Cornsilk4 = 0x8b8878,
Ivory1 = 0xfffff0,
Ivory2 = 0xeeeee0,
Ivory3 = 0xcdcdc1,
Ivory4 = 0x8b8b83,
Honeydew1 = 0xf0fff0,
Honeydew2 = 0xe0eee0,
Honeydew3 = 0xc1cdc1,
Honeydew4 = 0x838b83,
LavenderBlush1 = 0xfff0f5,
LavenderBlush2 = 0xeee0e5,
LavenderBlush3 = 0xcdc1c5,
LavenderBlush4 = 0x8b8386,
MistyRose1 = 0xffe4e1,
MistyRose2 = 0xeed5d2,
MistyRose3 = 0xcdb7b5,
MistyRose4 = 0x8b7d7b,
Azure1 = 0xf0ffff,
Azure2 = 0xe0eeee,
Azure3 = 0xc1cdcd,
Azure4 = 0x838b8b,
SlateBlue1 = 0x836fff,
SlateBlue2 = 0x7a67ee,
SlateBlue3 = 0x6959cd,
SlateBlue4 = 0x473c8b,
RoyalBlue1 = 0x4876ff,
RoyalBlue2 = 0x436eee,
RoyalBlue3 = 0x3a5fcd,
RoyalBlue4 = 0x27408b,
Blue1 = 0x0000ff,
Blue2 = 0x0000ee,
Blue3 = 0x0000cd,
Blue4 = 0x00008b,
DodgerBlue1 = 0x1e90ff,
DodgerBlue2 = 0x1c86ee,
DodgerBlue3 = 0x1874cd,
DodgerBlue4 = 0x104e8b,
SteelBlue1 = 0x63b8ff,
SteelBlue2 = 0x5cacee,
SteelBlue3 = 0x4f94cd,
SteelBlue4 = 0x36648b,
DeepSkyBlue1 = 0x00bfff,
DeepSkyBlue2 = 0x00b2ee,
DeepSkyBlue3 = 0x009acd,
DeepSkyBlue4 = 0x00688b,
SkyBlue1 = 0x87ceff,
SkyBlue2 = 0x7ec0ee,
SkyBlue3 = 0x6ca6cd,
SkyBlue4 = 0x4a708b,
LightSkyBlue1 = 0xb0e2ff,
LightSkyBlue2 = 0xa4d3ee,
LightSkyBlue3 = 0x8db6cd,
LightSkyBlue4 = 0x607b8b,
SlateGray1 = 0xc6e2ff,
SlateGray2 = 0xb9d3ee,
SlateGray3 = 0x9fb6cd,
SlateGray4 = 0x6c7b8b,
LightSteelBlue1 = 0xcae1ff,
LightSteelBlue2 = 0xbcd2ee,
LightSteelBlue3 = 0xa2b5cd,
LightSteelBlue4 = 0x6e7b8b,
LightBlue1 = 0xbfefff,
LightBlue2 = 0xb2dfee,
LightBlue3 = 0x9ac0cd,
LightBlue4 = 0x68838b,
LightCyan1 = 0xe0ffff,
LightCyan2 = 0xd1eeee,
LightCyan3 = 0xb4cdcd,
LightCyan4 = 0x7a8b8b,
PaleTurquoise1 = 0xbbffff,
PaleTurquoise2 = 0xaeeeee,
PaleTurquoise3 = 0x96cdcd,
PaleTurquoise4 = 0x668b8b,
CadetBlue1 = 0x98f5ff,
CadetBlue2 = 0x8ee5ee,
CadetBlue3 = 0x7ac5cd,
CadetBlue4 = 0x53868b,
Turquoise1 = 0x00f5ff,
Turquoise2 = 0x00e5ee,
Turquoise3 = 0x00c5cd,
Turquoise4 = 0x00868b,
Cyan1 = 0x00ffff,
Cyan2 = 0x00eeee,
Cyan3 = 0x00cdcd,
Cyan4 = 0x008b8b,
DarkSlateGray1 = 0x97ffff,
DarkSlateGray2 = 0x8deeee,
DarkSlateGray3 = 0x79cdcd,
DarkSlateGray4 = 0x528b8b,
Aquamarine1 = 0x7fffd4,
Aquamarine2 = 0x76eec6,
Aquamarine3 = 0x66cdaa,
Aquamarine4 = 0x458b74,
DarkSeaGreen1 = 0xc1ffc1,
DarkSeaGreen2 = 0xb4eeb4,
DarkSeaGreen3 = 0x9bcd9b,
DarkSeaGreen4 = 0x698b69,
SeaGreen1 = 0x54ff9f,
SeaGreen2 = 0x4eee94,
SeaGreen3 = 0x43cd80,
SeaGreen4 = 0x2e8b57,
PaleGreen1 = 0x9aff9a,
PaleGreen2 = 0x90ee90,
PaleGreen3 = 0x7ccd7c,
PaleGreen4 = 0x548b54,
SpringGreen1 = 0x00ff7f,
SpringGreen2 = 0x00ee76,
SpringGreen3 = 0x00cd66,
SpringGreen4 = 0x008b45,
Green1 = 0x00ff00,
Green2 = 0x00ee00,
Green3 = 0x00cd00,
Green4 = 0x008b00,
Chartreuse1 = 0x7fff00,
Chartreuse2 = 0x76ee00,
Chartreuse3 = 0x66cd00,
Chartreuse4 = 0x458b00,
OliveDrab1 = 0xc0ff3e,
OliveDrab2 = 0xb3ee3a,
OliveDrab3 = 0x9acd32,
OliveDrab4 = 0x698b22,
DarkOliveGreen1 = 0xcaff70,
DarkOliveGreen2 = 0xbcee68,
DarkOliveGreen3 = 0xa2cd5a,
DarkOliveGreen4 = 0x6e8b3d,
Khaki1 = 0xfff68f,
Khaki2 = 0xeee685,
Khaki3 = 0xcdc673,
Khaki4 = 0x8b864e,
LightGoldenrod1 = 0xffec8b,
LightGoldenrod2 = 0xeedc82,
LightGoldenrod3 = 0xcdbe70,
LightGoldenrod4 = 0x8b814c,
LightYellow1 = 0xffffe0,
LightYellow2 = 0xeeeed1,
LightYellow3 = 0xcdcdb4,
LightYellow4 = 0x8b8b7a,
Yellow1 = 0xffff00,
Yellow2 = 0xeeee00,
Yellow3 = 0xcdcd00,
Yellow4 = 0x8b8b00,
Gold1 = 0xffd700,
Gold2 = 0xeec900,
Gold3 = 0xcdad00,
Gold4 = 0x8b7500,
Goldenrod1 = 0xffc125,
Goldenrod2 = 0xeeb422,
Goldenrod3 = 0xcd9b1d,
Goldenrod4 = 0x8b6914,
DarkGoldenrod1 = 0xffb90f,
DarkGoldenrod2 = 0xeead0e,
DarkGoldenrod3 = 0xcd950c,
DarkGoldenrod4 = 0x8b6508,
RosyBrown1 = 0xffc1c1,
RosyBrown2 = 0xeeb4b4,
RosyBrown3 = 0xcd9b9b,
RosyBrown4 = 0x8b6969,
IndianRed1 = 0xff6a6a,
IndianRed2 = 0xee6363,
IndianRed3 = 0xcd5555,
IndianRed4 = 0x8b3a3a,
Sienna1 = 0xff8247,
Sienna2 = 0xee7942,
Sienna3 = 0xcd6839,
Sienna4 = 0x8b4726,
Burlywood1 = 0xffd39b,
Burlywood2 = 0xeec591,
Burlywood3 = 0xcdaa7d,
Burlywood4 = 0x8b7355,
Wheat1 = 0xffe7ba,
Wheat2 = 0xeed8ae,
Wheat3 = 0xcdba96,
Wheat4 = 0x8b7e66,
Tan1 = 0xffa54f,
Tan2 = 0xee9a49,
Tan3 = 0xcd853f,
Tan4 = 0x8b5a2b,
Chocolate1 = 0xff7f24,
Chocolate2 = 0xee7621,
Chocolate3 = 0xcd661d,
Chocolate4 = 0x8b4513,
Firebrick1 = 0xff3030,
Firebrick2 = 0xee2c2c,
Firebrick3 = 0xcd2626,
Firebrick4 = 0x8b1a1a,
Brown1 = 0xff4040,
Brown2 = 0xee3b3b,
Brown3 = 0xcd3333,
Brown4 = 0x8b2323,
Salmon1 = 0xff8c69,
Salmon2 = 0xee8262,
Salmon3 = 0xcd7054,
Salmon4 = 0x8b4c39,
LightSalmon1 = 0xffa07a,
LightSalmon2 = 0xee9572,
LightSalmon3 = 0xcd8162,
LightSalmon4 = 0x8b5742,
Orange1 = 0xffa500,
Orange2 = 0xee9a00,
Orange3 = 0xcd8500,
Orange4 = 0x8b5a00,
DarkOrange1 = 0xff7f00,
DarkOrange2 = 0xee7600,
DarkOrange3 = 0xcd6600,
DarkOrange4 = 0x8b4500,
Coral1 = 0xff7256,
Coral2 = 0xee6a50,
Coral3 = 0xcd5b45,
Coral4 = 0x8b3e2f,
Tomato1 = 0xff6347,
Tomato2 = 0xee5c42,
Tomato3 = 0xcd4f39,
Tomato4 = 0x8b3626,
OrangeRed1 = 0xff4500,
OrangeRed2 = 0xee4000,
OrangeRed3 = 0xcd3700,
OrangeRed4 = 0x8b2500,
Red1 = 0xff0000,
Red2 = 0xee0000,
Red3 = 0xcd0000,
Red4 = 0x8b0000,
DeepPink1 = 0xff1493,
DeepPink2 = 0xee1289,
DeepPink3 = 0xcd1076,
DeepPink4 = 0x8b0a50,
HotPink1 = 0xff6eb4,
HotPink2 = 0xee6aa7,
HotPink3 = 0xcd6090,
HotPink4 = 0x8b3a62,
Pink1 = 0xffb5c5,
Pink2 = 0xeea9b8,
Pink3 = 0xcd919e,
Pink4 = 0x8b636c,
LightPink1 = 0xffaeb9,
LightPink2 = 0xeea2ad,
LightPink3 = 0xcd8c95,
LightPink4 = 0x8b5f65,
PaleVioletRed1 = 0xff82ab,
PaleVioletRed2 = 0xee799f,
PaleVioletRed3 = 0xcd6889,
PaleVioletRed4 = 0x8b475d,
Maroon1 = 0xff34b3,
Maroon2 = 0xee30a7,
Maroon3 = 0xcd2990,
Maroon4 = 0x8b1c62,
VioletRed1 = 0xff3e96,
VioletRed2 = 0xee3a8c,
VioletRed3 = 0xcd3278,
VioletRed4 = 0x8b2252,
Magenta1 = 0xff00ff,
Magenta2 = 0xee00ee,
Magenta3 = 0xcd00cd,
Magenta4 = 0x8b008b,
Orchid1 = 0xff83fa,
Orchid2 = 0xee7ae9,
Orchid3 = 0xcd69c9,
Orchid4 = 0x8b4789,
Plum1 = 0xffbbff,
Plum2 = 0xeeaeee,
Plum3 = 0xcd96cd,
Plum4 = 0x8b668b,
MediumOrchid1 = 0xe066ff,
MediumOrchid2 = 0xd15fee,
MediumOrchid3 = 0xb452cd,
MediumOrchid4 = 0x7a378b,
DarkOrchid1 = 0xbf3eff,
DarkOrchid2 = 0xb23aee,
DarkOrchid3 = 0x9a32cd,
DarkOrchid4 = 0x68228b,
Purple1 = 0x9b30ff,
Purple2 = 0x912cee,
Purple3 = 0x7d26cd,
Purple4 = 0x551a8b,
MediumPurple1 = 0xab82ff,
MediumPurple2 = 0x9f79ee,
MediumPurple3 = 0x8968cd,
MediumPurple4 = 0x5d478b,
Thistle1 = 0xffe1ff,
Thistle2 = 0xeed2ee,
Thistle3 = 0xcdb5cd,
Thistle4 = 0x8b7b8b,
Gray0 = 0x000000,
Grey0 = 0x000000,
Gray1 = 0x030303,
Grey1 = 0x030303,
Gray2 = 0x050505,
Grey2 = 0x050505,
Gray3 = 0x080808,
Grey3 = 0x080808,
Gray4 = 0x0a0a0a,
Grey4 = 0x0a0a0a,
Gray5 = 0x0d0d0d,
Grey5 = 0x0d0d0d,
Gray6 = 0x0f0f0f,
Grey6 = 0x0f0f0f,
Gray7 = 0x121212,
Grey7 = 0x121212,
Gray8 = 0x141414,
Grey8 = 0x141414,
Gray9 = 0x171717,
Grey9 = 0x171717,
Gray10 = 0x1a1a1a,
Grey10 = 0x1a1a1a,
Gray11 = 0x1c1c1c,
Grey11 = 0x1c1c1c,
Gray12 = 0x1f1f1f,
Grey12 = 0x1f1f1f,
Gray13 = 0x212121,
Grey13 = 0x212121,
Gray14 = 0x242424,
Grey14 = 0x242424,
Gray15 = 0x262626,
Grey15 = 0x262626,
Gray16 = 0x292929,
Grey16 = 0x292929,
Gray17 = 0x2b2b2b,
Grey17 = 0x2b2b2b,
Gray18 = 0x2e2e2e,
Grey18 = 0x2e2e2e,
Gray19 = 0x303030,
Grey19 = 0x303030,
Gray20 = 0x333333,
Grey20 = 0x333333,
Gray21 = 0x363636,
Grey21 = 0x363636,
Gray22 = 0x383838,
Grey22 = 0x383838,
Gray23 = 0x3b3b3b,
Grey23 = 0x3b3b3b,
Gray24 = 0x3d3d3d,
Grey24 = 0x3d3d3d,
Gray25 = 0x404040,
Grey25 = 0x404040,
Gray26 = 0x424242,
Grey26 = 0x424242,
Gray27 = 0x454545,
Grey27 = 0x454545,
Gray28 = 0x474747,
Grey28 = 0x474747,
Gray29 = 0x4a4a4a,
Grey29 = 0x4a4a4a,
Gray30 = 0x4d4d4d,
Grey30 = 0x4d4d4d,
Gray31 = 0x4f4f4f,
Grey31 = 0x4f4f4f,
Gray32 = 0x525252,
Grey32 = 0x525252,
Gray33 = 0x545454,
Grey33 = 0x545454,
Gray34 = 0x575757,
Grey34 = 0x575757,
Gray35 = 0x595959,
Grey35 = 0x595959,
Gray36 = 0x5c5c5c,
Grey36 = 0x5c5c5c,
Gray37 = 0x5e5e5e,
Grey37 = 0x5e5e5e,
Gray38 = 0x616161,
Grey38 = 0x616161,
Gray39 = 0x636363,
Grey39 = 0x636363,
Gray40 = 0x666666,
Grey40 = 0x666666,
Gray41 = 0x696969,
Grey41 = 0x696969,
Gray42 = 0x6b6b6b,
Grey42 = 0x6b6b6b,
Gray43 = 0x6e6e6e,
Grey43 = 0x6e6e6e,
Gray44 = 0x707070,
Grey44 = 0x707070,
Gray45 = 0x737373,
Grey45 = 0x737373,
Gray46 = 0x757575,
Grey46 = 0x757575,
Gray47 = 0x787878,
Grey47 = 0x787878,
Gray48 = 0x7a7a7a,
Grey48 = 0x7a7a7a,
Gray49 = 0x7d7d7d,
Grey49 = 0x7d7d7d,
Gray50 = 0x7f7f7f,
Grey50 = 0x7f7f7f,
Gray51 = 0x828282,
Grey51 = 0x828282,
Gray52 = 0x858585,
Grey52 = 0x858585,
Gray53 = 0x878787,
Grey53 = 0x878787,
Gray54 = 0x8a8a8a,
Grey54 = 0x8a8a8a,
Gray55 = 0x8c8c8c,
Grey55 = 0x8c8c8c,
Gray56 = 0x8f8f8f,
Grey56 = 0x8f8f8f,
Gray57 = 0x919191,
Grey57 = 0x919191,
Gray58 = 0x949494,
Grey58 = 0x949494,
Gray59 = 0x969696,
Grey59 = 0x969696,
Gray60 = 0x999999,
Grey60 = 0x999999,
Gray61 = 0x9c9c9c,
Grey61 = 0x9c9c9c,
Gray62 = 0x9e9e9e,
Grey62 = 0x9e9e9e,
Gray63 = 0xa1a1a1,
Grey63 = 0xa1a1a1,
Gray64 = 0xa3a3a3,
Grey64 = 0xa3a3a3,
Gray65 = 0xa6a6a6,
Grey65 = 0xa6a6a6,
Gray66 = 0xa8a8a8,
Grey66 = 0xa8a8a8,
Gray67 = 0xababab,
Grey67 = 0xababab,
Gray68 = 0xadadad,
Grey68 = 0xadadad,
Gray69 = 0xb0b0b0,
Grey69 = 0xb0b0b0,
Gray70 = 0xb3b3b3,
Grey70 = 0xb3b3b3,
Gray71 = 0xb5b5b5,
Grey71 = 0xb5b5b5,
Gray72 = 0xb8b8b8,
Grey72 = 0xb8b8b8,
Gray73 = 0xbababa,
Grey73 = 0xbababa,
Gray74 = 0xbdbdbd,
Grey74 = 0xbdbdbd,
Gray75 = 0xbfbfbf,
Grey75 = 0xbfbfbf,
Gray76 = 0xc2c2c2,
Grey76 = 0xc2c2c2,
Gray77 = 0xc4c4c4,
Grey77 = 0xc4c4c4,
Gray78 = 0xc7c7c7,
Grey78 = 0xc7c7c7,
Gray79 = 0xc9c9c9,
Grey79 = 0xc9c9c9,
Gray80 = 0xcccccc,
Grey80 = 0xcccccc,
Gray81 = 0xcfcfcf,
Grey81 = 0xcfcfcf,
Gray82 = 0xd1d1d1,
Grey82 = 0xd1d1d1,
Gray83 = 0xd4d4d4,
Grey83 = 0xd4d4d4,
Gray84 = 0xd6d6d6,
Grey84 = 0xd6d6d6,
Gray85 = 0xd9d9d9,
Grey85 = 0xd9d9d9,
Gray86 = 0xdbdbdb,
Grey86 = 0xdbdbdb,
Gray87 = 0xdedede,
Grey87 = 0xdedede,
Gray88 = 0xe0e0e0,
Grey88 = 0xe0e0e0,
Gray89 = 0xe3e3e3,
Grey89 = 0xe3e3e3,
Gray90 = 0xe5e5e5,
Grey90 = 0xe5e5e5,
Gray91 = 0xe8e8e8,
Grey91 = 0xe8e8e8,
Gray92 = 0xebebeb,
Grey92 = 0xebebeb,
Gray93 = 0xededed,
Grey93 = 0xededed,
Gray94 = 0xf0f0f0,
Grey94 = 0xf0f0f0,
Gray95 = 0xf2f2f2,
Grey95 = 0xf2f2f2,
Gray96 = 0xf5f5f5,
Grey96 = 0xf5f5f5,
Gray97 = 0xf7f7f7,
Grey97 = 0xf7f7f7,
Gray98 = 0xfafafa,
Grey98 = 0xfafafa,
Gray99 = 0xfcfcfc,
Grey99 = 0xfcfcfc,
Gray100 = 0xffffff,
Grey100 = 0xffffff,
DarkGrey = 0xa9a9a9,
DarkGray = 0xa9a9a9,
DarkBlue = 0x00008b,
DarkCyan = 0x008b8b,
DarkMagenta = 0x8b008b,
DarkRed = 0x8b0000,
LightGreen = 0x90ee90,
Crimson = 0xdc143c,
Indigo = 0x4b0082,
Olive = 0x808000,
RebeccaPurple = 0x663399,
Silver = 0xc0c0c0,
Teal = 0x008080,
};
};
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyAlloc.hpp | #ifndef __TRACYALLOC_HPP__
#define __TRACYALLOC_HPP__
#include <stdlib.h>
#if defined TRACY_ENABLE && !defined __EMSCRIPTEN__
# include "TracyApi.h"
# include "TracyForceInline.hpp"
# include "../client/tracy_rpmalloc.hpp"
# define TRACY_USE_RPMALLOC
#endif
namespace tracy
{
#ifdef TRACY_USE_RPMALLOC
TRACY_API void InitRpmalloc();
#else
static inline void InitRpmalloc() {}
#endif
static inline void* tracy_malloc( size_t size )
{
#ifdef TRACY_USE_RPMALLOC
InitRpmalloc();
return rpmalloc( size );
#else
return malloc( size );
#endif
}
static inline void* tracy_malloc_fast( size_t size )
{
#ifdef TRACY_USE_RPMALLOC
return rpmalloc( size );
#else
return malloc( size );
#endif
}
static inline void tracy_free( void* ptr )
{
#ifdef TRACY_USE_RPMALLOC
InitRpmalloc();
rpfree( ptr );
#else
free( ptr );
#endif
}
static inline void tracy_free_fast( void* ptr )
{
#ifdef TRACY_USE_RPMALLOC
rpfree( ptr );
#else
free( ptr );
#endif
}
static inline void* tracy_realloc( void* ptr, size_t size )
{
#ifdef TRACY_USE_RPMALLOC
InitRpmalloc();
return rprealloc( ptr, size );
#else
return realloc( ptr, size );
#endif
}
}
#endif
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/tracy_lz4.hpp | /*
* LZ4 - Fast LZ compression algorithm
* Header File
* Copyright (C) 2011-2020, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- LZ4 homepage : http://www.lz4.org
- LZ4 source repository : https://github.com/lz4/lz4
*/
#ifndef TRACY_LZ4_H_2983827168210
#define TRACY_LZ4_H_2983827168210
/* --- Dependency --- */
#include <stddef.h> /* size_t */
#include <stdint.h>
/**
Introduction
LZ4 is lossless compression algorithm, providing compression speed >500 MB/s per core,
scalable with multi-cores CPU. It features an extremely fast decoder, with speed in
multiple GB/s per core, typically reaching RAM speed limits on multi-core systems.
The LZ4 compression library provides in-memory compression and decompression functions.
It gives full buffer control to user.
Compression can be done in:
- a single step (described as Simple Functions)
- a single step, reusing a context (described in Advanced Functions)
- unbounded multiple steps (described as Streaming compression)
lz4.h generates and decodes LZ4-compressed blocks (doc/lz4_Block_format.md).
Decompressing such a compressed block requires additional metadata.
Exact metadata depends on exact decompression function.
For the typical case of LZ4_decompress_safe(),
metadata includes block's compressed size, and maximum bound of decompressed size.
Each application is free to encode and pass such metadata in whichever way it wants.
lz4.h only handle blocks, it can not generate Frames.
Blocks are different from Frames (doc/lz4_Frame_format.md).
Frames bundle both blocks and metadata in a specified manner.
Embedding metadata is required for compressed data to be self-contained and portable.
Frame format is delivered through a companion API, declared in lz4frame.h.
The `lz4` CLI can only manage frames.
*/
/*^***************************************************************
* Export parameters
*****************************************************************/
/*
* LZ4_DLL_EXPORT :
* Enable exporting of functions when building a Windows DLL
* LZ4LIB_VISIBILITY :
* Control library symbols visibility.
*/
#ifndef LZ4LIB_VISIBILITY
# if defined(__GNUC__) && (__GNUC__ >= 4)
# define LZ4LIB_VISIBILITY __attribute__ ((visibility ("default")))
# else
# define LZ4LIB_VISIBILITY
# endif
#endif
#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1)
# define LZ4LIB_API __declspec(dllexport) LZ4LIB_VISIBILITY
#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)
# define LZ4LIB_API __declspec(dllimport) LZ4LIB_VISIBILITY /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/
#else
# define LZ4LIB_API LZ4LIB_VISIBILITY
#endif
/*! LZ4_FREESTANDING :
* When this macro is set to 1, it enables "freestanding mode" that is
* suitable for typical freestanding environment which doesn't support
* standard C library.
*
* - LZ4_FREESTANDING is a compile-time switch.
* - It requires the following macros to be defined:
* LZ4_memcpy, LZ4_memmove, LZ4_memset.
* - It only enables LZ4/HC functions which don't use heap.
* All LZ4F_* functions are not supported.
* - See tests/freestanding.c to check its basic setup.
*/
#if defined(LZ4_FREESTANDING) && (LZ4_FREESTANDING == 1)
# define LZ4_HEAPMODE 0
# define LZ4HC_HEAPMODE 0
# define LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION 1
# if !defined(LZ4_memcpy)
# error "LZ4_FREESTANDING requires macro 'LZ4_memcpy'."
# endif
# if !defined(LZ4_memset)
# error "LZ4_FREESTANDING requires macro 'LZ4_memset'."
# endif
# if !defined(LZ4_memmove)
# error "LZ4_FREESTANDING requires macro 'LZ4_memmove'."
# endif
#elif ! defined(LZ4_FREESTANDING)
# define LZ4_FREESTANDING 0
#endif
/*------ Version ------*/
#define LZ4_VERSION_MAJOR 1 /* for breaking interface changes */
#define LZ4_VERSION_MINOR 9 /* for new (non-breaking) interface capabilities */
#define LZ4_VERSION_RELEASE 4 /* for tweaks, bug-fixes, or development */
#define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR *100*100 + LZ4_VERSION_MINOR *100 + LZ4_VERSION_RELEASE)
#define LZ4_LIB_VERSION LZ4_VERSION_MAJOR.LZ4_VERSION_MINOR.LZ4_VERSION_RELEASE
#define LZ4_QUOTE(str) #str
#define LZ4_EXPAND_AND_QUOTE(str) LZ4_QUOTE(str)
#define LZ4_VERSION_STRING LZ4_EXPAND_AND_QUOTE(LZ4_LIB_VERSION) /* requires v1.7.3+ */
namespace tracy
{
LZ4LIB_API int LZ4_versionNumber (void); /**< library version number; useful to check dll version; requires v1.3.0+ */
LZ4LIB_API const char* LZ4_versionString (void); /**< library version string; useful to check dll version; requires v1.7.5+ */
/*-************************************
* Tuning parameter
**************************************/
#define LZ4_MEMORY_USAGE_MIN 10
#define LZ4_MEMORY_USAGE_DEFAULT 14
#define LZ4_MEMORY_USAGE_MAX 20
/*!
* LZ4_MEMORY_USAGE :
* Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; )
* Increasing memory usage improves compression ratio, at the cost of speed.
* Reduced memory usage may improve speed at the cost of ratio, thanks to better cache locality.
* Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache
*/
#ifndef LZ4_MEMORY_USAGE
# define LZ4_MEMORY_USAGE LZ4_MEMORY_USAGE_DEFAULT
#endif
#if (LZ4_MEMORY_USAGE < LZ4_MEMORY_USAGE_MIN)
# error "LZ4_MEMORY_USAGE is too small !"
#endif
#if (LZ4_MEMORY_USAGE > LZ4_MEMORY_USAGE_MAX)
# error "LZ4_MEMORY_USAGE is too large !"
#endif
/*-************************************
* Simple Functions
**************************************/
/*! LZ4_compress_default() :
* Compresses 'srcSize' bytes from buffer 'src'
* into already allocated 'dst' buffer of size 'dstCapacity'.
* Compression is guaranteed to succeed if 'dstCapacity' >= LZ4_compressBound(srcSize).
* It also runs faster, so it's a recommended setting.
* If the function cannot compress 'src' into a more limited 'dst' budget,
* compression stops *immediately*, and the function result is zero.
* In which case, 'dst' content is undefined (invalid).
* srcSize : max supported value is LZ4_MAX_INPUT_SIZE.
* dstCapacity : size of buffer 'dst' (which must be already allocated)
* @return : the number of bytes written into buffer 'dst' (necessarily <= dstCapacity)
* or 0 if compression fails
* Note : This function is protected against buffer overflow scenarios (never writes outside 'dst' buffer, nor read outside 'source' buffer).
*/
LZ4LIB_API int LZ4_compress_default(const char* src, char* dst, int srcSize, int dstCapacity);
/*! LZ4_decompress_safe() :
* compressedSize : is the exact complete size of the compressed block.
* dstCapacity : is the size of destination buffer (which must be already allocated), presumed an upper bound of decompressed size.
* @return : the number of bytes decompressed into destination buffer (necessarily <= dstCapacity)
* If destination buffer is not large enough, decoding will stop and output an error code (negative value).
* If the source stream is detected malformed, the function will stop decoding and return a negative result.
* Note 1 : This function is protected against malicious data packets :
* it will never writes outside 'dst' buffer, nor read outside 'source' buffer,
* even if the compressed block is maliciously modified to order the decoder to do these actions.
* In such case, the decoder stops immediately, and considers the compressed block malformed.
* Note 2 : compressedSize and dstCapacity must be provided to the function, the compressed block does not contain them.
* The implementation is free to send / store / derive this information in whichever way is most beneficial.
* If there is a need for a different format which bundles together both compressed data and its metadata, consider looking at lz4frame.h instead.
*/
LZ4LIB_API int LZ4_decompress_safe (const char* src, char* dst, int compressedSize, int dstCapacity);
/*-************************************
* Advanced Functions
**************************************/
#define LZ4_MAX_INPUT_SIZE 0x7E000000 /* 2 113 929 216 bytes */
#define LZ4_COMPRESSBOUND(isize) ((unsigned)(isize) > (unsigned)LZ4_MAX_INPUT_SIZE ? 0 : (isize) + ((isize)/255) + 16)
/*! LZ4_compressBound() :
Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible)
This function is primarily useful for memory allocation purposes (destination buffer size).
Macro LZ4_COMPRESSBOUND() is also provided for compilation-time evaluation (stack memory allocation for example).
Note that LZ4_compress_default() compresses faster when dstCapacity is >= LZ4_compressBound(srcSize)
inputSize : max supported value is LZ4_MAX_INPUT_SIZE
return : maximum output size in a "worst case" scenario
or 0, if input size is incorrect (too large or negative)
*/
LZ4LIB_API int LZ4_compressBound(int inputSize);
/*! LZ4_compress_fast() :
Same as LZ4_compress_default(), but allows selection of "acceleration" factor.
The larger the acceleration value, the faster the algorithm, but also the lesser the compression.
It's a trade-off. It can be fine tuned, with each successive value providing roughly +~3% to speed.
An acceleration value of "1" is the same as regular LZ4_compress_default()
Values <= 0 will be replaced by LZ4_ACCELERATION_DEFAULT (currently == 1, see lz4.c).
Values > LZ4_ACCELERATION_MAX will be replaced by LZ4_ACCELERATION_MAX (currently == 65537, see lz4.c).
*/
LZ4LIB_API int LZ4_compress_fast (const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
/*! LZ4_compress_fast_extState() :
* Same as LZ4_compress_fast(), using an externally allocated memory space for its state.
* Use LZ4_sizeofState() to know how much memory must be allocated,
* and allocate it on 8-bytes boundaries (using `malloc()` typically).
* Then, provide this buffer as `void* state` to compression function.
*/
LZ4LIB_API int LZ4_sizeofState(void);
LZ4LIB_API int LZ4_compress_fast_extState (void* state, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
/*! LZ4_compress_destSize() :
* Reverse the logic : compresses as much data as possible from 'src' buffer
* into already allocated buffer 'dst', of size >= 'targetDestSize'.
* This function either compresses the entire 'src' content into 'dst' if it's large enough,
* or fill 'dst' buffer completely with as much data as possible from 'src'.
* note: acceleration parameter is fixed to "default".
*
* *srcSizePtr : will be modified to indicate how many bytes where read from 'src' to fill 'dst'.
* New value is necessarily <= input value.
* @return : Nb bytes written into 'dst' (necessarily <= targetDestSize)
* or 0 if compression fails.
*
* Note : from v1.8.2 to v1.9.1, this function had a bug (fixed un v1.9.2+):
* the produced compressed content could, in specific circumstances,
* require to be decompressed into a destination buffer larger
* by at least 1 byte than the content to decompress.
* If an application uses `LZ4_compress_destSize()`,
* it's highly recommended to update liblz4 to v1.9.2 or better.
* If this can't be done or ensured,
* the receiving decompression function should provide
* a dstCapacity which is > decompressedSize, by at least 1 byte.
* See https://github.com/lz4/lz4/issues/859 for details
*/
LZ4LIB_API int LZ4_compress_destSize (const char* src, char* dst, int* srcSizePtr, int targetDstSize);
/*! LZ4_decompress_safe_partial() :
* Decompress an LZ4 compressed block, of size 'srcSize' at position 'src',
* into destination buffer 'dst' of size 'dstCapacity'.
* Up to 'targetOutputSize' bytes will be decoded.
* The function stops decoding on reaching this objective.
* This can be useful to boost performance
* whenever only the beginning of a block is required.
*
* @return : the number of bytes decoded in `dst` (necessarily <= targetOutputSize)
* If source stream is detected malformed, function returns a negative result.
*
* Note 1 : @return can be < targetOutputSize, if compressed block contains less data.
*
* Note 2 : targetOutputSize must be <= dstCapacity
*
* Note 3 : this function effectively stops decoding on reaching targetOutputSize,
* so dstCapacity is kind of redundant.
* This is because in older versions of this function,
* decoding operation would still write complete sequences.
* Therefore, there was no guarantee that it would stop writing at exactly targetOutputSize,
* it could write more bytes, though only up to dstCapacity.
* Some "margin" used to be required for this operation to work properly.
* Thankfully, this is no longer necessary.
* The function nonetheless keeps the same signature, in an effort to preserve API compatibility.
*
* Note 4 : If srcSize is the exact size of the block,
* then targetOutputSize can be any value,
* including larger than the block's decompressed size.
* The function will, at most, generate block's decompressed size.
*
* Note 5 : If srcSize is _larger_ than block's compressed size,
* then targetOutputSize **MUST** be <= block's decompressed size.
* Otherwise, *silent corruption will occur*.
*/
LZ4LIB_API int LZ4_decompress_safe_partial (const char* src, char* dst, int srcSize, int targetOutputSize, int dstCapacity);
/*-*********************************************
* Streaming Compression Functions
***********************************************/
typedef union LZ4_stream_u LZ4_stream_t; /* incomplete type (defined later) */
/**
Note about RC_INVOKED
- RC_INVOKED is predefined symbol of rc.exe (the resource compiler which is part of MSVC/Visual Studio).
https://docs.microsoft.com/en-us/windows/win32/menurc/predefined-macros
- Since rc.exe is a legacy compiler, it truncates long symbol (> 30 chars)
and reports warning "RC4011: identifier truncated".
- To eliminate the warning, we surround long preprocessor symbol with
"#if !defined(RC_INVOKED) ... #endif" block that means
"skip this block when rc.exe is trying to read it".
*/
#if !defined(RC_INVOKED) /* https://docs.microsoft.com/en-us/windows/win32/menurc/predefined-macros */
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
LZ4LIB_API LZ4_stream_t* LZ4_createStream(void);
LZ4LIB_API int LZ4_freeStream (LZ4_stream_t* streamPtr);
#endif /* !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION) */
#endif
/*! LZ4_resetStream_fast() : v1.9.0+
* Use this to prepare an LZ4_stream_t for a new chain of dependent blocks
* (e.g., LZ4_compress_fast_continue()).
*
* An LZ4_stream_t must be initialized once before usage.
* This is automatically done when created by LZ4_createStream().
* However, should the LZ4_stream_t be simply declared on stack (for example),
* it's necessary to initialize it first, using LZ4_initStream().
*
* After init, start any new stream with LZ4_resetStream_fast().
* A same LZ4_stream_t can be re-used multiple times consecutively
* and compress multiple streams,
* provided that it starts each new stream with LZ4_resetStream_fast().
*
* LZ4_resetStream_fast() is much faster than LZ4_initStream(),
* but is not compatible with memory regions containing garbage data.
*
* Note: it's only useful to call LZ4_resetStream_fast()
* in the context of streaming compression.
* The *extState* functions perform their own resets.
* Invoking LZ4_resetStream_fast() before is redundant, and even counterproductive.
*/
LZ4LIB_API void LZ4_resetStream_fast (LZ4_stream_t* streamPtr);
/*! LZ4_loadDict() :
* Use this function to reference a static dictionary into LZ4_stream_t.
* The dictionary must remain available during compression.
* LZ4_loadDict() triggers a reset, so any previous data will be forgotten.
* The same dictionary will have to be loaded on decompression side for successful decoding.
* Dictionary are useful for better compression of small data (KB range).
* While LZ4 accept any input as dictionary,
* results are generally better when using Zstandard's Dictionary Builder.
* Loading a size of 0 is allowed, and is the same as reset.
* @return : loaded dictionary size, in bytes (necessarily <= 64 KB)
*/
LZ4LIB_API int LZ4_loadDict (LZ4_stream_t* streamPtr, const char* dictionary, int dictSize);
/*! LZ4_compress_fast_continue() :
* Compress 'src' content using data from previously compressed blocks, for better compression ratio.
* 'dst' buffer must be already allocated.
* If dstCapacity >= LZ4_compressBound(srcSize), compression is guaranteed to succeed, and runs faster.
*
* @return : size of compressed block
* or 0 if there is an error (typically, cannot fit into 'dst').
*
* Note 1 : Each invocation to LZ4_compress_fast_continue() generates a new block.
* Each block has precise boundaries.
* Each block must be decompressed separately, calling LZ4_decompress_*() with relevant metadata.
* It's not possible to append blocks together and expect a single invocation of LZ4_decompress_*() to decompress them together.
*
* Note 2 : The previous 64KB of source data is __assumed__ to remain present, unmodified, at same address in memory !
*
* Note 3 : When input is structured as a double-buffer, each buffer can have any size, including < 64 KB.
* Make sure that buffers are separated, by at least one byte.
* This construction ensures that each block only depends on previous block.
*
* Note 4 : If input buffer is a ring-buffer, it can have any size, including < 64 KB.
*
* Note 5 : After an error, the stream status is undefined (invalid), it can only be reset or freed.
*/
LZ4LIB_API int LZ4_compress_fast_continue (LZ4_stream_t* streamPtr, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
/*! LZ4_saveDict() :
* If last 64KB data cannot be guaranteed to remain available at its current memory location,
* save it into a safer place (char* safeBuffer).
* This is schematically equivalent to a memcpy() followed by LZ4_loadDict(),
* but is much faster, because LZ4_saveDict() doesn't need to rebuild tables.
* @return : saved dictionary size in bytes (necessarily <= maxDictSize), or 0 if error.
*/
LZ4LIB_API int LZ4_saveDict (LZ4_stream_t* streamPtr, char* safeBuffer, int maxDictSize);
/*-**********************************************
* Streaming Decompression Functions
* Bufferless synchronous API
************************************************/
typedef union LZ4_streamDecode_u LZ4_streamDecode_t; /* tracking context */
/*! LZ4_createStreamDecode() and LZ4_freeStreamDecode() :
* creation / destruction of streaming decompression tracking context.
* A tracking context can be re-used multiple times.
*/
#if !defined(RC_INVOKED) /* https://docs.microsoft.com/en-us/windows/win32/menurc/predefined-macros */
#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION)
LZ4LIB_API LZ4_streamDecode_t* LZ4_createStreamDecode(void);
LZ4LIB_API int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream);
#endif /* !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION) */
#endif
/*! LZ4_setStreamDecode() :
* An LZ4_streamDecode_t context can be allocated once and re-used multiple times.
* Use this function to start decompression of a new stream of blocks.
* A dictionary can optionally be set. Use NULL or size 0 for a reset order.
* Dictionary is presumed stable : it must remain accessible and unmodified during next decompression.
* @return : 1 if OK, 0 if error
*/
LZ4LIB_API int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize);
/*! LZ4_decoderRingBufferSize() : v1.8.2+
* Note : in a ring buffer scenario (optional),
* blocks are presumed decompressed next to each other
* up to the moment there is not enough remaining space for next block (remainingSize < maxBlockSize),
* at which stage it resumes from beginning of ring buffer.
* When setting such a ring buffer for streaming decompression,
* provides the minimum size of this ring buffer
* to be compatible with any source respecting maxBlockSize condition.
* @return : minimum ring buffer size,
* or 0 if there is an error (invalid maxBlockSize).
*/
LZ4LIB_API int LZ4_decoderRingBufferSize(int maxBlockSize);
#define LZ4_DECODER_RING_BUFFER_SIZE(maxBlockSize) (65536 + 14 + (maxBlockSize)) /* for static allocation; maxBlockSize presumed valid */
/*! LZ4_decompress_*_continue() :
* These decoding functions allow decompression of consecutive blocks in "streaming" mode.
* A block is an unsplittable entity, it must be presented entirely to a decompression function.
* Decompression functions only accepts one block at a time.
* The last 64KB of previously decoded data *must* remain available and unmodified at the memory position where they were decoded.
* If less than 64KB of data has been decoded, all the data must be present.
*
* Special : if decompression side sets a ring buffer, it must respect one of the following conditions :
* - Decompression buffer size is _at least_ LZ4_decoderRingBufferSize(maxBlockSize).
* maxBlockSize is the maximum size of any single block. It can have any value > 16 bytes.
* In which case, encoding and decoding buffers do not need to be synchronized.
* Actually, data can be produced by any source compliant with LZ4 format specification, and respecting maxBlockSize.
* - Synchronized mode :
* Decompression buffer size is _exactly_ the same as compression buffer size,
* and follows exactly same update rule (block boundaries at same positions),
* and decoding function is provided with exact decompressed size of each block (exception for last block of the stream),
* _then_ decoding & encoding ring buffer can have any size, including small ones ( < 64 KB).
* - Decompression buffer is larger than encoding buffer, by a minimum of maxBlockSize more bytes.
* In which case, encoding and decoding buffers do not need to be synchronized,
* and encoding ring buffer can have any size, including small ones ( < 64 KB).
*
* Whenever these conditions are not possible,
* save the last 64KB of decoded data into a safe buffer where it can't be modified during decompression,
* then indicate where this data is saved using LZ4_setStreamDecode(), before decompressing next block.
*/
LZ4LIB_API int
LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode,
const char* src, char* dst,
int srcSize, int dstCapacity);
/*! LZ4_decompress_*_usingDict() :
* These decoding functions work the same as
* a combination of LZ4_setStreamDecode() followed by LZ4_decompress_*_continue()
* They are stand-alone, and don't need an LZ4_streamDecode_t structure.
* Dictionary is presumed stable : it must remain accessible and unmodified during decompression.
* Performance tip : Decompression speed can be substantially increased
* when dst == dictStart + dictSize.
*/
LZ4LIB_API int
LZ4_decompress_safe_usingDict(const char* src, char* dst,
int srcSize, int dstCapacity,
const char* dictStart, int dictSize);
LZ4LIB_API int
LZ4_decompress_safe_partial_usingDict(const char* src, char* dst,
int compressedSize,
int targetOutputSize, int maxOutputSize,
const char* dictStart, int dictSize);
}
#endif /* LZ4_H_2983827168210 */
/*^*************************************
* !!!!!! STATIC LINKING ONLY !!!!!!
***************************************/
/*-****************************************************************************
* Experimental section
*
* Symbols declared in this section must be considered unstable. Their
* signatures or semantics may change, or they may be removed altogether in the
* future. They are therefore only safe to depend on when the caller is
* statically linked against the library.
*
* To protect against unsafe usage, not only are the declarations guarded,
* the definitions are hidden by default
* when building LZ4 as a shared/dynamic library.
*
* In order to access these declarations,
* define LZ4_STATIC_LINKING_ONLY in your application
* before including LZ4's headers.
*
* In order to make their implementations accessible dynamically, you must
* define LZ4_PUBLISH_STATIC_FUNCTIONS when building the LZ4 library.
******************************************************************************/
#ifdef LZ4_STATIC_LINKING_ONLY
#ifndef TRACY_LZ4_STATIC_3504398509
#define TRACY_LZ4_STATIC_3504398509
#ifdef LZ4_PUBLISH_STATIC_FUNCTIONS
#define LZ4LIB_STATIC_API LZ4LIB_API
#else
#define LZ4LIB_STATIC_API
#endif
namespace tracy
{
/*! LZ4_compress_fast_extState_fastReset() :
* A variant of LZ4_compress_fast_extState().
*
* Using this variant avoids an expensive initialization step.
* It is only safe to call if the state buffer is known to be correctly initialized already
* (see above comment on LZ4_resetStream_fast() for a definition of "correctly initialized").
* From a high level, the difference is that
* this function initializes the provided state with a call to something like LZ4_resetStream_fast()
* while LZ4_compress_fast_extState() starts with a call to LZ4_resetStream().
*/
LZ4LIB_STATIC_API int LZ4_compress_fast_extState_fastReset (void* state, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
/*! LZ4_attach_dictionary() :
* This is an experimental API that allows
* efficient use of a static dictionary many times.
*
* Rather than re-loading the dictionary buffer into a working context before
* each compression, or copying a pre-loaded dictionary's LZ4_stream_t into a
* working LZ4_stream_t, this function introduces a no-copy setup mechanism,
* in which the working stream references the dictionary stream in-place.
*
* Several assumptions are made about the state of the dictionary stream.
* Currently, only streams which have been prepared by LZ4_loadDict() should
* be expected to work.
*
* Alternatively, the provided dictionaryStream may be NULL,
* in which case any existing dictionary stream is unset.
*
* If a dictionary is provided, it replaces any pre-existing stream history.
* The dictionary contents are the only history that can be referenced and
* logically immediately precede the data compressed in the first subsequent
* compression call.
*
* The dictionary will only remain attached to the working stream through the
* first compression call, at the end of which it is cleared. The dictionary
* stream (and source buffer) must remain in-place / accessible / unchanged
* through the completion of the first compression call on the stream.
*/
LZ4LIB_STATIC_API void
LZ4_attach_dictionary(LZ4_stream_t* workingStream,
const LZ4_stream_t* dictionaryStream);
/*! In-place compression and decompression
*
* It's possible to have input and output sharing the same buffer,
* for highly constrained memory environments.
* In both cases, it requires input to lay at the end of the buffer,
* and decompression to start at beginning of the buffer.
* Buffer size must feature some margin, hence be larger than final size.
*
* |<------------------------buffer--------------------------------->|
* |<-----------compressed data--------->|
* |<-----------decompressed size------------------>|
* |<----margin---->|
*
* This technique is more useful for decompression,
* since decompressed size is typically larger,
* and margin is short.
*
* In-place decompression will work inside any buffer
* which size is >= LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize).
* This presumes that decompressedSize > compressedSize.
* Otherwise, it means compression actually expanded data,
* and it would be more efficient to store such data with a flag indicating it's not compressed.
* This can happen when data is not compressible (already compressed, or encrypted).
*
* For in-place compression, margin is larger, as it must be able to cope with both
* history preservation, requiring input data to remain unmodified up to LZ4_DISTANCE_MAX,
* and data expansion, which can happen when input is not compressible.
* As a consequence, buffer size requirements are much higher,
* and memory savings offered by in-place compression are more limited.
*
* There are ways to limit this cost for compression :
* - Reduce history size, by modifying LZ4_DISTANCE_MAX.
* Note that it is a compile-time constant, so all compressions will apply this limit.
* Lower values will reduce compression ratio, except when input_size < LZ4_DISTANCE_MAX,
* so it's a reasonable trick when inputs are known to be small.
* - Require the compressor to deliver a "maximum compressed size".
* This is the `dstCapacity` parameter in `LZ4_compress*()`.
* When this size is < LZ4_COMPRESSBOUND(inputSize), then compression can fail,
* in which case, the return code will be 0 (zero).
* The caller must be ready for these cases to happen,
* and typically design a backup scheme to send data uncompressed.
* The combination of both techniques can significantly reduce
* the amount of margin required for in-place compression.
*
* In-place compression can work in any buffer
* which size is >= (maxCompressedSize)
* with maxCompressedSize == LZ4_COMPRESSBOUND(srcSize) for guaranteed compression success.
* LZ4_COMPRESS_INPLACE_BUFFER_SIZE() depends on both maxCompressedSize and LZ4_DISTANCE_MAX,
* so it's possible to reduce memory requirements by playing with them.
*/
#define LZ4_DECOMPRESS_INPLACE_MARGIN(compressedSize) (((compressedSize) >> 8) + 32)
#define LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize) ((decompressedSize) + LZ4_DECOMPRESS_INPLACE_MARGIN(decompressedSize)) /**< note: presumes that compressedSize < decompressedSize. note2: margin is overestimated a bit, since it could use compressedSize instead */
#ifndef LZ4_DISTANCE_MAX /* history window size; can be user-defined at compile time */
# define LZ4_DISTANCE_MAX 65535 /* set to maximum value by default */
#endif
#define LZ4_COMPRESS_INPLACE_MARGIN (LZ4_DISTANCE_MAX + 32) /* LZ4_DISTANCE_MAX can be safely replaced by srcSize when it's smaller */
#define LZ4_COMPRESS_INPLACE_BUFFER_SIZE(maxCompressedSize) ((maxCompressedSize) + LZ4_COMPRESS_INPLACE_MARGIN) /**< maxCompressedSize is generally LZ4_COMPRESSBOUND(inputSize), but can be set to any lower value, with the risk that compression can fail (return code 0(zero)) */
}
#endif /* LZ4_STATIC_3504398509 */
#endif /* LZ4_STATIC_LINKING_ONLY */
#ifndef TRACY_LZ4_H_98237428734687
#define TRACY_LZ4_H_98237428734687
namespace tracy
{
/*-************************************************************
* Private Definitions
**************************************************************
* Do not use these definitions directly.
* They are only exposed to allow static allocation of `LZ4_stream_t` and `LZ4_streamDecode_t`.
* Accessing members will expose user code to API and/or ABI break in future versions of the library.
**************************************************************/
#define LZ4_HASHLOG (LZ4_MEMORY_USAGE-2)
#define LZ4_HASHTABLESIZE (1 << LZ4_MEMORY_USAGE)
#define LZ4_HASH_SIZE_U32 (1 << LZ4_HASHLOG) /* required as macro for static allocation */
#if defined(__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
typedef int8_t LZ4_i8;
typedef uint8_t LZ4_byte;
typedef uint16_t LZ4_u16;
typedef uint32_t LZ4_u32;
#else
typedef signed char LZ4_i8;
typedef unsigned char LZ4_byte;
typedef unsigned short LZ4_u16;
typedef unsigned int LZ4_u32;
#endif
/*! LZ4_stream_t :
* Never ever use below internal definitions directly !
* These definitions are not API/ABI safe, and may change in future versions.
* If you need static allocation, declare or allocate an LZ4_stream_t object.
**/
typedef struct LZ4_stream_t_internal LZ4_stream_t_internal;
struct LZ4_stream_t_internal {
LZ4_u32 hashTable[LZ4_HASH_SIZE_U32];
const LZ4_byte* dictionary;
const LZ4_stream_t_internal* dictCtx;
LZ4_u32 currentOffset;
LZ4_u32 tableType;
LZ4_u32 dictSize;
/* Implicit padding to ensure structure is aligned */
};
#define LZ4_STREAM_MINSIZE ((1UL << LZ4_MEMORY_USAGE) + 32) /* static size, for inter-version compatibility */
union LZ4_stream_u {
char minStateSize[LZ4_STREAM_MINSIZE];
LZ4_stream_t_internal internal_donotuse;
}; /* previously typedef'd to LZ4_stream_t */
/*! LZ4_initStream() : v1.9.0+
* An LZ4_stream_t structure must be initialized at least once.
* This is automatically done when invoking LZ4_createStream(),
* but it's not when the structure is simply declared on stack (for example).
*
* Use LZ4_initStream() to properly initialize a newly declared LZ4_stream_t.
* It can also initialize any arbitrary buffer of sufficient size,
* and will @return a pointer of proper type upon initialization.
*
* Note : initialization fails if size and alignment conditions are not respected.
* In which case, the function will @return NULL.
* Note2: An LZ4_stream_t structure guarantees correct alignment and size.
* Note3: Before v1.9.0, use LZ4_resetStream() instead
**/
LZ4LIB_API LZ4_stream_t* LZ4_initStream (void* buffer, size_t size);
/*! LZ4_streamDecode_t :
* Never ever use below internal definitions directly !
* These definitions are not API/ABI safe, and may change in future versions.
* If you need static allocation, declare or allocate an LZ4_streamDecode_t object.
**/
typedef struct {
const LZ4_byte* externalDict;
const LZ4_byte* prefixEnd;
size_t extDictSize;
size_t prefixSize;
} LZ4_streamDecode_t_internal;
#define LZ4_STREAMDECODE_MINSIZE 32
union LZ4_streamDecode_u {
char minStateSize[LZ4_STREAMDECODE_MINSIZE];
LZ4_streamDecode_t_internal internal_donotuse;
} ; /* previously typedef'd to LZ4_streamDecode_t */
/*-************************************
* Obsolete Functions
**************************************/
/*! Deprecation warnings
*
* Deprecated functions make the compiler generate a warning when invoked.
* This is meant to invite users to update their source code.
* Should deprecation warnings be a problem, it is generally possible to disable them,
* typically with -Wno-deprecated-declarations for gcc
* or _CRT_SECURE_NO_WARNINGS in Visual.
*
* Another method is to define LZ4_DISABLE_DEPRECATE_WARNINGS
* before including the header file.
*/
#ifdef LZ4_DISABLE_DEPRECATE_WARNINGS
# define LZ4_DEPRECATED(message) /* disable deprecation warnings */
#else
# if defined (__cplusplus) && (__cplusplus >= 201402) /* C++14 or greater */
# define LZ4_DEPRECATED(message) [[deprecated(message)]]
# elif defined(_MSC_VER)
# define LZ4_DEPRECATED(message) __declspec(deprecated(message))
# elif defined(__clang__) || (defined(__GNUC__) && (__GNUC__ * 10 + __GNUC_MINOR__ >= 45))
# define LZ4_DEPRECATED(message) __attribute__((deprecated(message)))
# elif defined(__GNUC__) && (__GNUC__ * 10 + __GNUC_MINOR__ >= 31)
# define LZ4_DEPRECATED(message) __attribute__((deprecated))
# else
# pragma message("WARNING: LZ4_DEPRECATED needs custom implementation for this compiler")
# define LZ4_DEPRECATED(message) /* disabled */
# endif
#endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */
/*! Obsolete compression functions (since v1.7.3) */
LZ4_DEPRECATED("use LZ4_compress_default() instead") LZ4LIB_API int LZ4_compress (const char* src, char* dest, int srcSize);
LZ4_DEPRECATED("use LZ4_compress_default() instead") LZ4LIB_API int LZ4_compress_limitedOutput (const char* src, char* dest, int srcSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") LZ4LIB_API int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") LZ4LIB_API int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") LZ4LIB_API int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") LZ4LIB_API int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
/*! Obsolete decompression functions (since v1.8.0) */
LZ4_DEPRECATED("use LZ4_decompress_fast() instead") LZ4LIB_API int LZ4_uncompress (const char* source, char* dest, int outputSize);
LZ4_DEPRECATED("use LZ4_decompress_safe() instead") LZ4LIB_API int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize);
/* Obsolete streaming functions (since v1.7.0)
* degraded functionality; do not use!
*
* In order to perform streaming compression, these functions depended on data
* that is no longer tracked in the state. They have been preserved as well as
* possible: using them will still produce a correct output. However, they don't
* actually retain any history between compression calls. The compression ratio
* achieved will therefore be no better than compressing each chunk
* independently.
*/
LZ4_DEPRECATED("Use LZ4_createStream() instead") LZ4LIB_API void* LZ4_create (char* inputBuffer);
LZ4_DEPRECATED("Use LZ4_createStream() instead") LZ4LIB_API int LZ4_sizeofStreamState(void);
LZ4_DEPRECATED("Use LZ4_resetStream() instead") LZ4LIB_API int LZ4_resetStreamState(void* state, char* inputBuffer);
LZ4_DEPRECATED("Use LZ4_saveDict() instead") LZ4LIB_API char* LZ4_slideInputBuffer (void* state);
/*! Obsolete streaming decoding functions (since v1.7.0) */
LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") LZ4LIB_API int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize);
LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") LZ4LIB_API int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize);
/*! Obsolete LZ4_decompress_fast variants (since v1.9.0) :
* These functions used to be faster than LZ4_decompress_safe(),
* but this is no longer the case. They are now slower.
* This is because LZ4_decompress_fast() doesn't know the input size,
* and therefore must progress more cautiously into the input buffer to not read beyond the end of block.
* On top of that `LZ4_decompress_fast()` is not protected vs malformed or malicious inputs, making it a security liability.
* As a consequence, LZ4_decompress_fast() is strongly discouraged, and deprecated.
*
* The last remaining LZ4_decompress_fast() specificity is that
* it can decompress a block without knowing its compressed size.
* Such functionality can be achieved in a more secure manner
* by employing LZ4_decompress_safe_partial().
*
* Parameters:
* originalSize : is the uncompressed size to regenerate.
* `dst` must be already allocated, its size must be >= 'originalSize' bytes.
* @return : number of bytes read from source buffer (== compressed size).
* The function expects to finish at block's end exactly.
* If the source stream is detected malformed, the function stops decoding and returns a negative result.
* note : LZ4_decompress_fast*() requires originalSize. Thanks to this information, it never writes past the output buffer.
* However, since it doesn't know its 'src' size, it may read an unknown amount of input, past input buffer bounds.
* Also, since match offsets are not validated, match reads from 'src' may underflow too.
* These issues never happen if input (compressed) data is correct.
* But they may happen if input data is invalid (error or intentional tampering).
* As a consequence, use these functions in trusted environments with trusted data **only**.
*/
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe() instead")
LZ4LIB_API int LZ4_decompress_fast (const char* src, char* dst, int originalSize);
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe_continue() instead")
LZ4LIB_API int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* src, char* dst, int originalSize);
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe_usingDict() instead")
LZ4LIB_API int LZ4_decompress_fast_usingDict (const char* src, char* dst, int originalSize, const char* dictStart, int dictSize);
/*! LZ4_resetStream() :
* An LZ4_stream_t structure must be initialized at least once.
* This is done with LZ4_initStream(), or LZ4_resetStream().
* Consider switching to LZ4_initStream(),
* invoking LZ4_resetStream() will trigger deprecation warnings in the future.
*/
LZ4LIB_API void LZ4_resetStream (LZ4_stream_t* streamPtr);
}
#endif /* LZ4_H_98237428734687 */
|
0 | repos/zig_vulkan/deps/ztracy/libs/tracy | repos/zig_vulkan/deps/ztracy/libs/tracy/common/TracyUwp.hpp | #ifndef __TRACYUWP_HPP__
#define __TRACYUWP_HPP__
#ifdef _WIN32
# include <winapifamily.h>
# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
# define TRACY_UWP
# endif
#endif
#endif
|
0 | repos/zig_vulkan/deps | repos/zig_vulkan/deps/zgui/README.md | # zgui v0.9.6 - dear imgui (1.89.4) bindings
Easy to use, hand-crafted API with default arguments, named parameters and Zig style text formatting. For a test application please see [here](https://github.com/michal-z/zig-gamedev/tree/main/samples/gui_test_wgpu).
## Features
* Most public dear imgui API exposed
* All memory allocations go through user provided Zig allocator
* [DrawList API](#drawlist-api) for vector graphics, text rendering and custom widgets
* [Plot API](#plot-api) for advanced data visualizations
## Getting started
Copy `zgui` folder to a `libs` subdirectory of the root of your project.
To get glfw/wgpu rendering backend working also copy `zgpu`, `zglfw` and `zpool` folders (see [zgpu](https://github.com/michal-z/zig-gamedev/tree/main/libs/zgpu) for the details). Alternatively, you can provide your own rendering backend, see: [backend_glfw_wgpu.zig](src/backend_glfw_wgpu.zig) for an example.
Then in your `build.zig` add:
```zig
const zgui = @import("libs/zgui/build.zig");
// Needed for glfw/wgpu rendering backend
const zglfw = @import("libs/zglfw/build.zig");
const zgpu = @import("libs/zgpu/build.zig");
const zpool = @import("libs/zpool/build.zig");
pub fn build(b: *std.Build) void {
...
const optimize = b.standardOptimizeOption(.{});
const target = b.standardTargetOptions(.{});
const zgui_pkg = zgui.package(b, target, optimize, .{
.options = .{ .backend = .glfw_wgpu },
});
zgui_pkg.link(exe);
// Needed for glfw/wgpu rendering backend
const zglfw_pkg = zglfw.package(b, target, optimize, .{});
const zpool_pkg = zpool.package(b, target, optimize, .{});
const zgpu_pkg = zgpu.package(b, target, optimize, .{
.deps = .{ .zpool = zpool_pkg.zpool, .zglfw = zglfw_pkg.zglfw },
});
zglfw_pkg.link(exe);
zgpu_pkg.link(exe);
}
```
Now in your code you may import and use `zgui`:
```zig
const zgui = @import("zgui");
zgui.init(allocator);
_ = zgui.io.addFontFromFile(content_dir ++ "Roboto-Medium.ttf", 16.0);
zgui.backend.init(
window,
demo.gctx.device,
@enumToInt(swapchain_format),
);
```
```zig
// Main loop
while (...) {
zgui.backend.newFrame(framebuffer_width, framebuffer_height);
zgui.bulletText(
"Average : {d:.3} ms/frame ({d:.1} fps)",
.{ demo.gctx.stats.average_cpu_time, demo.gctx.stats.fps },
);
zgui.bulletText("W, A, S, D : move camera", .{});
zgui.spacing();
if (zgui.button("Setup Scene", .{})) {
// Button pressed.
}
if (zgui.dragFloat("Drag 1", .{ .v = &value0 })) {
// value0 has changed
}
if (zgui.dragFloat("Drag 2", .{ .v = &value0, .min = -1.0, .max = 1.0 })) {
// value1 has changed
}
// Setup wgpu render pass here
zgui.backend.draw(pass);
}
```
### Building a shared library
If your project spans multiple zig modules that both use ImGui, such as an exe paired with a dll, you may want to build the `zgui` dependencies (`zgui_pkg.zgui_c_cpp`) as a shared library. This can be enabled with the `shared` build option. Then, in `build.zig`, use `zgui_pkg.link` to link `zgui` to all the modules that use ImGui.
When built this way, the ImGui context will be located in the shared library. However, the `zgui` zig code (which is compiled separately into each module) requires its own memory buffer which has to be initialized separately with `initNoContext`.
In your executable:
```zig
const zgui = @import("zgui");
zgui.init(allocator);
defer zgui.deinit();
```
In your shared library:
```zig
const zgui = @import("zgui");
zgui.initNoContext(allocator);
defer zgui.deinitNoContxt();
```
### DrawList API
```zig
draw_list.addQuad(.{
.p1 = .{ 170, 420 },
.p2 = .{ 270, 420 },
.p3 = .{ 220, 520 },
.p4 = .{ 120, 520 },
.col = 0xff_00_00_ff,
.thickness = 3.0,
});
draw_list.addText(.{ 130, 130 }, 0xff_00_00_ff, "The number is: {}", .{7});
draw_list.addCircleFilled(.{ .p = .{ 200, 600 }, .r = 50, .col = 0xff_ff_ff_ff });
draw_list.addCircle(.{ .p = .{ 200, 600 }, .r = 30, .col = 0xff_00_00_ff, .thickness = 11 });
draw_list.addPolyline(
&.{ .{ 100, 700 }, .{ 200, 600 }, .{ 300, 700 }, .{ 400, 600 } },
.{ .col = 0xff_00_aa_11, .thickness = 7 },
);
```
### Plot API
```zig
if (zgui.plot.beginPlot("Line Plot", .{ .h = -1.0 })) {
zgui.plot.setupAxis(.x1, .{ .label = "xaxis" });
zgui.plot.setupAxisLimits(.x1, .{ .min = 0, .max = 5 });
zgui.plot.setupLegend(.{ .south = true, .west = true }, .{});
zgui.plot.setupFinish();
zgui.plot.plotLineValues("y data", i32, .{ .v = &.{ 0, 1, 0, 1, 0, 1 } });
zgui.plot.plotLine("xy data", f32, .{
.xv = &.{ 0.1, 0.2, 0.5, 2.5 },
.yv = &.{ 0.1, 0.3, 0.5, 0.9 },
});
zgui.plot.endPlot();
}
```
|
0 | repos/zig_vulkan/deps | repos/zig_vulkan/deps/zgui/build.zig | const std = @import("std");
pub const Backend = enum {
no_backend,
glfw_wgpu,
win32_dx12,
};
pub const Options = struct {
backend: Backend,
shared: bool = false,
};
pub const Package = struct {
options: Options,
zgui: *std.Build.Module,
zgui_options: *std.Build.Module,
zgui_c_cpp: *std.Build.CompileStep,
pub fn link(pkg: Package, exe: *std.Build.CompileStep) void {
exe.linkLibrary(pkg.zgui_c_cpp);
exe.addModule("zgui", pkg.zgui);
}
};
pub fn package(
b: *std.Build,
target: std.zig.CrossTarget,
optimize: std.builtin.Mode,
args: struct {
options: Options,
},
) Package {
const step = b.addOptions();
step.addOption(Backend, "backend", args.options.backend);
step.addOption(bool, "shared", args.options.shared);
const zgui_options = step.createModule();
const zgui = b.createModule(.{
.source_file = .{ .path = thisDir() ++ "/src/main.zig" },
.dependencies = &.{
.{ .name = "zgui_options", .module = zgui_options },
},
});
const zgui_c_cpp = if (args.options.shared) blk: {
const lib = b.addSharedLibrary(.{
.name = "zgui",
.target = target,
.optimize = optimize,
});
b.installArtifact(lib);
if (target.isWindows()) {
lib.defineCMacro("IMGUI_API", "__declspec(dllexport)");
lib.defineCMacro("IMPLOT_API", "__declspec(dllexport)");
lib.defineCMacro("ZGUI_API", "__declspec(dllexport)");
}
break :blk lib;
} else b.addStaticLibrary(.{
.name = "zgui",
.target = target,
.optimize = optimize,
});
zgui_c_cpp.addIncludePath(thisDir() ++ "/libs");
zgui_c_cpp.addIncludePath(thisDir() ++ "/libs/imgui");
zgui_c_cpp.linkLibC();
zgui_c_cpp.linkLibCpp();
const cflags = &.{"-fno-sanitize=undefined"};
zgui_c_cpp.addCSourceFile(thisDir() ++ "/src/zgui.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/imgui.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/imgui_widgets.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/imgui_tables.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/imgui_draw.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/imgui_demo.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/implot_demo.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/implot.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/implot_items.cpp", cflags);
switch (args.options.backend) {
.glfw_wgpu => {
zgui_c_cpp.addIncludePath(thisDir() ++ "/../zglfw/libs/glfw/include");
zgui_c_cpp.addIncludePath(thisDir() ++ "/../zgpu/libs/dawn/include");
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_glfw.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_wgpu.cpp", cflags);
},
.win32_dx12 => {
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_win32.cpp", cflags);
zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_dx12.cpp", cflags);
zgui_c_cpp.linkSystemLibraryName("d3dcompiler_47");
zgui_c_cpp.linkSystemLibraryName("dwmapi");
},
.no_backend => {},
}
return .{
.options = args.options,
.zgui = zgui,
.zgui_options = zgui_options,
.zgui_c_cpp = zgui_c_cpp,
};
}
pub fn build(_: *std.Build) void {}
inline fn thisDir() []const u8 {
return comptime std.fs.path.dirname(@src().file) orelse ".";
}
|
0 | repos/zig_vulkan/deps/zgui | repos/zig_vulkan/deps/zgui/src/main.zig | //--------------------------------------------------------------------------------------------------
//
// Zig bindings for 'dear imgui' library. Easy to use, hand-crafted API with default arguments,
// named parameters and Zig style text formatting.
//
//--------------------------------------------------------------------------------------------------
pub const version = @import("std").SemanticVersion{ .major = 0, .minor = 9, .patch = 6 };
pub usingnamespace @import("gui.zig");
pub const plot = @import("plot.zig");
pub const backend = switch (@import("zgui_options").backend) {
.glfw_wgpu => @import("backend_glfw_wgpu.zig"),
.win32_dx12 => .{}, // TODO:
.no_backend => .{},
};
|
0 | repos/zig_vulkan/deps/zgui | repos/zig_vulkan/deps/zgui/src/backend_glfw_wgpu.zig | const gui = @import("gui.zig");
pub const TextureFilterMode = enum(u32) {
nearest,
linear,
};
pub const Config = extern struct {
pipeline_multisample_count: u32 = 1,
texture_filter_mode: TextureFilterMode = .linear,
};
// This call will install GLFW callbacks to handle GUI interactions.
// Those callbacks will chain-call user's previously installed callbacks, if any.
// This means that custom user's callbacks need to be installed *before* calling zgpu.gui.init().
pub fn initWithConfig(
window: *const anyopaque, // zglfw.Window
wgpu_device: *const anyopaque, // wgpu.Device
wgpu_swap_chain_format: u32, // wgpu.TextureFormat
config: Config,
) void {
if (!ImGui_ImplGlfw_InitForOther(window, true)) {
unreachable;
}
if (!ImGui_ImplWGPU_Init(wgpu_device, 1, wgpu_swap_chain_format, &config)) {
unreachable;
}
}
pub fn init(window: *const anyopaque, wgpu_device: *const anyopaque, wgpu_swap_chain_format: u32) void {
initWithConfig(window, wgpu_device, wgpu_swap_chain_format, .{});
}
pub fn deinit() void {
ImGui_ImplWGPU_Shutdown();
ImGui_ImplGlfw_Shutdown();
}
pub fn newFrame(fb_width: u32, fb_height: u32) void {
ImGui_ImplWGPU_NewFrame();
ImGui_ImplGlfw_NewFrame();
gui.io.setDisplaySize(@intToFloat(f32, fb_width), @intToFloat(f32, fb_height));
gui.io.setDisplayFramebufferScale(1.0, 1.0);
gui.newFrame();
}
pub fn draw(wgpu_render_pass: *const anyopaque) void {
gui.render();
ImGui_ImplWGPU_RenderDrawData(gui.getDrawData(), wgpu_render_pass);
}
// Those functions are defined in `imgui_impl_glfw.cpp` and 'imgui_impl_wgpu.cpp`
// (they include few custom changes).
extern fn ImGui_ImplGlfw_InitForOther(window: *const anyopaque, install_callbacks: bool) bool;
extern fn ImGui_ImplGlfw_NewFrame() void;
extern fn ImGui_ImplGlfw_Shutdown() void;
extern fn ImGui_ImplWGPU_Init(
device: *const anyopaque,
num_frames_in_flight: u32,
rt_format: u32,
config: *const Config,
) bool;
extern fn ImGui_ImplWGPU_NewFrame() void;
extern fn ImGui_ImplWGPU_RenderDrawData(draw_data: *const anyopaque, pass_encoder: *const anyopaque) void;
extern fn ImGui_ImplWGPU_Shutdown() void;
|
0 | repos/zig_vulkan/deps/zgui | repos/zig_vulkan/deps/zgui/src/zgui.cpp | #include "./imgui/imgui.h"
#include "./imgui/implot.h"
#ifndef ZGUI_API
#define ZGUI_API
#endif
extern "C" {
/*
#include <stdio.h>
ZGUI_API float zguiGetFloatMin(void) {
printf("__FLT_MIN__ %.32e\n", __FLT_MIN__);
return __FLT_MIN__;
}
ZGUI_API float zguiGetFloatMax(void) {
printf("__FLT_MAX__ %.32e\n", __FLT_MAX__);
return __FLT_MAX__;
}
*/
ZGUI_API void zguiSetAllocatorFunctions(
void* (*alloc_func)(size_t, void*),
void (*free_func)(void*, void*)
) {
ImGui::SetAllocatorFunctions(alloc_func, free_func, nullptr);
}
ZGUI_API void zguiSetNextWindowPos(float x, float y, ImGuiCond cond, float pivot_x, float pivot_y) {
ImGui::SetNextWindowPos({ x, y }, cond, { pivot_x, pivot_y });
}
ZGUI_API void zguiSetNextWindowSize(float w, float h, ImGuiCond cond) {
ImGui::SetNextWindowSize({ w, h }, cond);
}
ZGUI_API void zguiSetNextWindowCollapsed(bool collapsed, ImGuiCond cond) {
ImGui::SetNextWindowCollapsed(collapsed, cond);
}
ZGUI_API void zguiSetNextWindowFocus(void) {
ImGui::SetNextWindowFocus();
}
ZGUI_API void zguiSetNextWindowBgAlpha(float alpha) {
ImGui::SetNextWindowBgAlpha(alpha);
}
ZGUI_API void zguiSetKeyboardFocusHere(int offset) {
ImGui::SetKeyboardFocusHere(offset);
}
ZGUI_API bool zguiBegin(const char* name, bool* p_open, ImGuiWindowFlags flags) {
return ImGui::Begin(name, p_open, flags);
}
ZGUI_API void zguiEnd(void) {
ImGui::End();
}
ZGUI_API bool zguiBeginChild(const char* str_id, float w, float h, bool border, ImGuiWindowFlags flags) {
return ImGui::BeginChild(str_id, { w, h }, border, flags);
}
ZGUI_API bool zguiBeginChildId(ImGuiID id, float w, float h, bool border, ImGuiWindowFlags flags) {
return ImGui::BeginChild(id, { w, h }, border, flags);
}
ZGUI_API void zguiEndChild(void) {
ImGui::EndChild();
}
ZGUI_API float zguiGetScrollX(void) {
return ImGui::GetScrollX();
}
ZGUI_API float zguiGetScrollY(void) {
return ImGui::GetScrollY();
}
ZGUI_API void zguiSetScrollX(float scroll_x) {
ImGui::SetScrollX(scroll_x);
}
ZGUI_API void zguiSetScrollY(float scroll_y) {
ImGui::SetScrollY(scroll_y);
}
ZGUI_API float zguiGetScrollMaxX(void) {
return ImGui::GetScrollMaxX();
}
ZGUI_API float zguiGetScrollMaxY(void) {
return ImGui::GetScrollMaxY();
}
ZGUI_API void zguiSetScrollHereX(float center_x_ratio) {
ImGui::SetScrollHereX(center_x_ratio);
}
ZGUI_API void zguiSetScrollHereY(float center_y_ratio) {
ImGui::SetScrollHereY(center_y_ratio);
}
ZGUI_API void zguiSetScrollFromPosX(float local_x, float center_x_ratio) {
ImGui::SetScrollFromPosX(local_x, center_x_ratio);
}
ZGUI_API void zguiSetScrollFromPosY(float local_y, float center_y_ratio) {
ImGui::SetScrollFromPosY(local_y, center_y_ratio);
}
ZGUI_API bool zguiIsWindowAppearing(void) {
return ImGui::IsWindowAppearing();
}
ZGUI_API bool zguiIsWindowCollapsed(void) {
return ImGui::IsWindowCollapsed();
}
ZGUI_API bool zguiIsWindowFocused(ImGuiFocusedFlags flags) {
return ImGui::IsWindowFocused(flags);
}
ZGUI_API bool zguiIsWindowHovered(ImGuiHoveredFlags flags) {
return ImGui::IsWindowHovered(flags);
}
ZGUI_API void zguiGetWindowPos(float pos[2]) {
const ImVec2 p = ImGui::GetWindowPos();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiGetWindowSize(float size[2]) {
const ImVec2 s = ImGui::GetWindowSize();
size[0] = s.x;
size[1] = s.y;
}
ZGUI_API float zguiGetWindowWidth(void) {
return ImGui::GetWindowWidth();
}
ZGUI_API float zguiGetWindowHeight(void) {
return ImGui::GetWindowHeight();
}
ZGUI_API void zguiGetMouseDragDelta(ImGuiMouseButton button, float lock_threshold, float delta[2]) {
const ImVec2 d = ImGui::GetMouseDragDelta(button, lock_threshold);
delta[0] = d.x;
delta[1] = d.y;
}
ZGUI_API void zguiResetMouseDragDelta(ImGuiMouseButton button) {
ImGui::ResetMouseDragDelta(button);
}
ZGUI_API void zguiSpacing(void) {
ImGui::Spacing();
}
ZGUI_API void zguiNewLine(void) {
ImGui::NewLine();
}
ZGUI_API void zguiIndent(float indent_w) {
ImGui::Indent(indent_w);
}
ZGUI_API void zguiUnindent(float indent_w) {
ImGui::Unindent(indent_w);
}
ZGUI_API void zguiSeparator(void) {
ImGui::Separator();
}
ZGUI_API void zguiSeparatorText(const char* label) {
ImGui::SeparatorText(label);
}
ZGUI_API void zguiSameLine(float offset_from_start_x, float spacing) {
ImGui::SameLine(offset_from_start_x, spacing);
}
ZGUI_API void zguiDummy(float w, float h) {
ImGui::Dummy({ w, h });
}
ZGUI_API void zguiBeginGroup(void) {
ImGui::BeginGroup();
}
ZGUI_API void zguiEndGroup(void) {
ImGui::EndGroup();
}
ZGUI_API void zguiGetItemRectMax(float rect[2]) {
const ImVec2 r = ImGui::GetItemRectMax();
rect[0] = r.x;
rect[1] = r.y;
}
ZGUI_API void zguiGetItemRectMin(float rect[2]) {
const ImVec2 r = ImGui::GetItemRectMin();
rect[0] = r.x;
rect[1] = r.y;
}
ZGUI_API void zguiGetCursorPos(float pos[2]) {
const ImVec2 p = ImGui::GetCursorPos();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API float zguiGetCursorPosX(void) {
return ImGui::GetCursorPosX();
}
ZGUI_API float zguiGetCursorPosY(void) {
return ImGui::GetCursorPosY();
}
ZGUI_API void zguiSetCursorPos(float local_x, float local_y) {
ImGui::SetCursorPos({ local_x, local_y });
}
ZGUI_API void zguiSetCursorPosX(float local_x) {
ImGui::SetCursorPosX(local_x);
}
ZGUI_API void zguiSetCursorPosY(float local_y) {
ImGui::SetCursorPosY(local_y);
}
ZGUI_API void zguiGetCursorStartPos(float pos[2]) {
const ImVec2 p = ImGui::GetCursorStartPos();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiGetCursorScreenPos(float pos[2]) {
const ImVec2 p = ImGui::GetCursorScreenPos();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiSetCursorScreenPos(float screen_x, float screen_y) {
ImGui::SetCursorScreenPos({ screen_x, screen_y });
}
ZGUI_API int zguiGetMouseCursor(void) {
return ImGui::GetMouseCursor();
}
ZGUI_API void zguiSetMouseCursor(int cursor) {
ImGui::SetMouseCursor(cursor);
}
ZGUI_API void zguiAlignTextToFramePadding(void) {
ImGui::AlignTextToFramePadding();
}
ZGUI_API float zguiGetTextLineHeight(void) {
return ImGui::GetTextLineHeight();
}
ZGUI_API float zguiGetTextLineHeightWithSpacing(void) {
return ImGui::GetTextLineHeightWithSpacing();
}
ZGUI_API float zguiGetFrameHeight(void) {
return ImGui::GetFrameHeight();
}
ZGUI_API float zguiGetFrameHeightWithSpacing(void) {
return ImGui::GetFrameHeightWithSpacing();
}
ZGUI_API bool zguiDragFloat(
const char* label,
float* v,
float v_speed,
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragFloat(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragFloat2(
const char* label,
float v[2],
float v_speed,
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragFloat2(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragFloat3(
const char* label,
float v[3],
float v_speed,
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragFloat3(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragFloat4(
const char* label,
float v[4],
float v_speed,
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragFloat4(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragFloatRange2(
const char* label,
float* v_current_min,
float* v_current_max,
float v_speed,
float v_min,
float v_max,
const char* format,
const char* format_max,
ImGuiSliderFlags flags
) {
return ImGui::DragFloatRange2(
label,
v_current_min,
v_current_max,
v_speed,
v_min,
v_max,
format,
format_max,
flags
);
}
ZGUI_API bool zguiDragInt(
const char* label,
int* v,
float v_speed,
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragInt(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragInt2(
const char* label,
int v[2],
float v_speed,
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragInt2(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragInt3(
const char* label,
int v[3],
float v_speed,
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragInt3(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragInt4(
const char* label,
int v[4],
float v_speed,
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragInt4(label, v, v_speed, v_min, v_max, format, flags);
}
ZGUI_API bool zguiDragIntRange2(
const char* label,
int* v_current_min,
int* v_current_max,
float v_speed,
int v_min,
int v_max,
const char* format,
const char* format_max,
ImGuiSliderFlags flags
) {
return ImGui::DragIntRange2(
label,
v_current_min,
v_current_max,
v_speed,
v_min,
v_max,
format,
format_max,
flags
);
}
ZGUI_API bool zguiDragScalar(
const char* label,
ImGuiDataType data_type,
void* p_data,
float v_speed,
const void* p_min,
const void* p_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragScalar(label, data_type, p_data, v_speed, p_min, p_max, format, flags);
}
ZGUI_API bool zguiDragScalarN(
const char* label,
ImGuiDataType data_type,
void* p_data,
int components,
float v_speed,
const void* p_min,
const void* p_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::DragScalarN(label, data_type, p_data, components, v_speed, p_min, p_max, format, flags);
}
ZGUI_API bool zguiCombo(
const char* label,
int* current_item,
const char* items_separated_by_zeros,
int popup_max_height_in_items
) {
return ImGui::Combo(label, current_item, items_separated_by_zeros, popup_max_height_in_items);
}
ZGUI_API bool zguiBeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags) {
return ImGui::BeginCombo(label, preview_value, flags);
}
ZGUI_API void zguiEndCombo(void) {
ImGui::EndCombo();
}
ZGUI_API bool zguiBeginListBox(const char* label, float w, float h) {
return ImGui::BeginListBox(label, { w, h });
}
ZGUI_API void zguiEndListBox(void) {
ImGui::EndListBox();
}
ZGUI_API bool zguiSelectable(const char* label, bool selected, ImGuiSelectableFlags flags, float w, float h) {
return ImGui::Selectable(label, selected, flags, { w, h });
}
ZGUI_API bool zguiSelectableStatePtr(
const char* label,
bool* p_selected,
ImGuiSelectableFlags flags,
float w,
float h
) {
return ImGui::Selectable(label, p_selected, flags, { w, h });
}
ZGUI_API bool zguiSliderFloat(
const char* label,
float* v,
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderFloat(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderFloat2(
const char* label,
float v[2],
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderFloat2(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderFloat3(
const char* label,
float v[3],
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderFloat3(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderFloat4(
const char* label,
float v[4],
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderFloat4(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderInt(
const char* label,
int* v,
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderInt(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderInt2(
const char* label,
int v[2],
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderInt2(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderInt3(
const char* label,
int v[3],
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderInt3(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderInt4(
const char* label,
int v[4],
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderInt4(label, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiSliderScalar(
const char* label,
ImGuiDataType data_type,
void* p_data,
const void* p_min,
const void* p_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderScalar(label, data_type, p_data, p_min, p_max, format, flags);
}
ZGUI_API bool zguiSliderScalarN(
const char* label,
ImGuiDataType data_type,
void* p_data,
int components,
const void* p_min,
const void* p_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderScalarN(label, data_type, p_data, components, p_min, p_max, format, flags);
}
ZGUI_API bool zguiVSliderFloat(
const char* label,
float w,
float h,
float* v,
float v_min,
float v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::VSliderFloat(label, { w, h }, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiVSliderInt(
const char* label,
float w,
float h,
int* v,
int v_min,
int v_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::VSliderInt(label, { w, h }, v, v_min, v_max, format, flags);
}
ZGUI_API bool zguiVSliderScalar(
const char* label,
float w,
float h,
ImGuiDataType data_type,
void* p_data,
const void* p_min,
const void* p_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::VSliderScalar(label, { w, h }, data_type, p_data, p_min, p_max, format, flags);
}
ZGUI_API bool zguiSliderAngle(
const char* label,
float* v_rad,
float v_degrees_min,
float v_degrees_max,
const char* format,
ImGuiSliderFlags flags
) {
return ImGui::SliderAngle(label, v_rad, v_degrees_min, v_degrees_max, format, flags);
}
ZGUI_API ImGuiInputTextCallbackData zguiInputTextCallbackData_Init(void) {
return ImGuiInputTextCallbackData();
}
ZGUI_API void zguiInputTextCallbackData_DeleteChars(
ImGuiInputTextCallbackData* data,
int pos,
int bytes_count
) {
data->DeleteChars(pos, bytes_count);
}
ZGUI_API void zguiInputTextCallbackData_InsertChars(
ImGuiInputTextCallbackData* data,
int pos,
const char* text,
const char* text_end
) {
data->InsertChars(pos, text, text_end);
}
ZGUI_API bool zguiInputText(
const char* label,
char* buf,
size_t buf_size,
ImGuiInputTextFlags flags,
ImGuiInputTextCallback callback,
void* user_data
) {
return ImGui::InputText(label, buf, buf_size, flags, callback, user_data);
}
ZGUI_API bool zguiInputTextMultiline(
const char* label,
char* buf,
size_t buf_size,
float w,
float h,
ImGuiInputTextFlags flags,
ImGuiInputTextCallback callback,
void* user_data
) {
return ImGui::InputTextMultiline(label, buf, buf_size, { w, h }, flags, callback, user_data);
}
ZGUI_API bool zguiInputTextWithHint(
const char* label,
const char* hint,
char* buf,
size_t buf_size,
ImGuiInputTextFlags flags,
ImGuiInputTextCallback callback,
void* user_data
) {
return ImGui::InputTextWithHint(label, hint, buf, buf_size, flags, callback, user_data);
}
ZGUI_API bool zguiInputFloat(
const char* label,
float* v,
float step,
float step_fast,
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputFloat(label, v, step, step_fast, format, flags);
}
ZGUI_API bool zguiInputFloat2(
const char* label,
float v[2],
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputFloat2(label, v, format, flags);
}
ZGUI_API bool zguiInputFloat3(
const char* label,
float v[3],
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputFloat3(label, v, format, flags);
}
ZGUI_API bool zguiInputFloat4(
const char* label,
float v[4],
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputFloat4(label, v, format, flags);
}
ZGUI_API bool zguiInputInt(
const char* label,
int* v,
int step,
int step_fast,
ImGuiInputTextFlags flags
) {
return ImGui::InputInt(label, v, step, step_fast, flags);
}
ZGUI_API bool zguiInputInt2(const char* label, int v[2], ImGuiInputTextFlags flags) {
return ImGui::InputInt2(label, v, flags);
}
ZGUI_API bool zguiInputInt3(const char* label, int v[3], ImGuiInputTextFlags flags) {
return ImGui::InputInt3(label, v, flags);
}
ZGUI_API bool zguiInputInt4(const char* label, int v[4], ImGuiInputTextFlags flags) {
return ImGui::InputInt4(label, v, flags);
}
ZGUI_API bool zguiInputDouble(
const char* label,
double* v,
double step,
double step_fast,
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputDouble(label, v, step, step_fast, format, flags);
}
ZGUI_API bool zguiInputScalar(
const char* label,
ImGuiDataType data_type,
void* p_data,
const void* p_step,
const void* p_step_fast,
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputScalar(label, data_type, p_data, p_step, p_step_fast, format, flags);
}
ZGUI_API bool zguiInputScalarN(
const char* label,
ImGuiDataType data_type,
void* p_data,
int components,
const void* p_step,
const void* p_step_fast,
const char* format,
ImGuiInputTextFlags flags
) {
return ImGui::InputScalarN(label, data_type, p_data, components, p_step, p_step_fast, format, flags);
}
ZGUI_API bool zguiColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags) {
return ImGui::ColorEdit3(label, col, flags);
}
ZGUI_API bool zguiColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags) {
return ImGui::ColorEdit4(label, col, flags);
}
ZGUI_API bool zguiColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags) {
return ImGui::ColorPicker3(label, col, flags);
}
ZGUI_API bool zguiColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags, const float* ref_col) {
return ImGui::ColorPicker4(label, col, flags, ref_col);
}
ZGUI_API bool zguiColorButton(const char* desc_id, const float col[4], ImGuiColorEditFlags flags, float w, float h) {
return ImGui::ColorButton(desc_id, { col[0], col[1], col[2], col[3] }, flags, { w, h });
}
ZGUI_API void zguiTextUnformatted(const char* text, const char* text_end) {
ImGui::TextUnformatted(text, text_end);
}
ZGUI_API void zguiTextColored(const float col[4], const char* fmt, ...) {
va_list args;
va_start(args, fmt);
ImGui::TextColoredV({ col[0], col[1], col[2], col[3] }, fmt, args);
va_end(args);
}
ZGUI_API void zguiTextDisabled(const char* fmt, ...) {
va_list args;
va_start(args, fmt);
ImGui::TextDisabledV(fmt, args);
va_end(args);
}
ZGUI_API void zguiTextWrapped(const char* fmt, ...) {
va_list args;
va_start(args, fmt);
ImGui::TextWrappedV(fmt, args);
va_end(args);
}
ZGUI_API void zguiBulletText(const char* fmt, ...) {
va_list args;
va_start(args, fmt);
ImGui::BulletTextV(fmt, args);
va_end(args);
}
ZGUI_API void zguiLabelText(const char* label, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
ImGui::LabelTextV(label, fmt, args);
va_end(args);
}
ZGUI_API void zguiCalcTextSize(
const char* txt,
const char* txt_end,
bool hide_text_after_double_hash,
float wrap_width,
float* out_w,
float* out_h
) {
assert(out_w && out_h);
const ImVec2 s = ImGui::CalcTextSize(txt, txt_end, hide_text_after_double_hash, wrap_width);
*out_w = s.x;
*out_h = s.y;
}
ZGUI_API bool zguiButton(const char* label, float x, float y) {
return ImGui::Button(label, { x, y });
}
ZGUI_API bool zguiSmallButton(const char* label) {
return ImGui::SmallButton(label);
}
ZGUI_API bool zguiInvisibleButton(const char* str_id, float w, float h, ImGuiButtonFlags flags) {
return ImGui::InvisibleButton(str_id, { w, h }, flags);
}
ZGUI_API bool zguiArrowButton(const char* str_id, ImGuiDir dir) {
return ImGui::ArrowButton(str_id, dir);
}
ZGUI_API void zguiImage(
ImTextureID user_texture_id,
float w,
float h,
const float uv0[2],
const float uv1[2],
const float tint_col[4],
const float border_col[4]
) {
ImGui::Image(
user_texture_id,
{ w, h },
{ uv0[0], uv0[1] },
{ uv1[0], uv1[1] },
{ tint_col[0], tint_col[1], tint_col[2], tint_col[3] },
{ border_col[0], border_col[1], border_col[2], border_col[3] }
);
}
ZGUI_API bool zguiImageButton(
const char* str_id,
ImTextureID user_texture_id,
float w,
float h,
const float uv0[2],
const float uv1[2],
const float bg_col[4],
const float tint_col[4]
) {
return ImGui::ImageButton(
str_id,
user_texture_id,
{ w, h },
{ uv0[0], uv0[1] },
{ uv1[0], uv1[1] },
{ bg_col[0], bg_col[1], bg_col[2], bg_col[3] },
{ tint_col[0], tint_col[1], tint_col[2], tint_col[3] }
);
}
ZGUI_API void zguiBullet(void) {
ImGui::Bullet();
}
ZGUI_API bool zguiRadioButton(const char* label, bool active) {
return ImGui::RadioButton(label, active);
}
ZGUI_API bool zguiRadioButtonStatePtr(const char* label, int* v, int v_button) {
return ImGui::RadioButton(label, v, v_button);
}
ZGUI_API bool zguiCheckbox(const char* label, bool* v) {
return ImGui::Checkbox(label, v);
}
ZGUI_API bool zguiCheckboxBits(const char* label, unsigned int* bits, unsigned int bits_value) {
return ImGui::CheckboxFlags(label, bits, bits_value);
}
ZGUI_API void zguiProgressBar(float fraction, float w, float h, const char* overlay) {
return ImGui::ProgressBar(fraction, { w, h }, overlay);
}
ZGUI_API ImGuiContext* zguiCreateContext(ImFontAtlas* shared_font_atlas) {
return ImGui::CreateContext(shared_font_atlas);
}
ZGUI_API void zguiDestroyContext(ImGuiContext* ctx) {
ImGui::DestroyContext(ctx);
}
ZGUI_API ImGuiContext* zguiGetCurrentContext(void) {
return ImGui::GetCurrentContext();
}
ZGUI_API void zguiSetCurrentContext(ImGuiContext* ctx) {
ImGui::SetCurrentContext(ctx);
}
ZGUI_API void zguiNewFrame(void) {
ImGui::NewFrame();
}
ZGUI_API void zguiRender(void) {
ImGui::Render();
}
ZGUI_API ImDrawData* zguiGetDrawData(void) {
return ImGui::GetDrawData();
}
ZGUI_API void zguiShowDemoWindow(bool* p_open) {
ImGui::ShowDemoWindow(p_open);
}
ZGUI_API void zguiBeginDisabled(bool disabled) {
ImGui::BeginDisabled(disabled);
}
ZGUI_API void zguiEndDisabled(void) {
ImGui::EndDisabled();
}
ZGUI_API ImGuiStyle* zguiGetStyle(void) {
return &ImGui::GetStyle();
}
ZGUI_API ImGuiStyle zguiStyle_Init(void) {
return ImGuiStyle();
}
ZGUI_API void zguiStyle_ScaleAllSizes(ImGuiStyle* style, float scale_factor) {
style->ScaleAllSizes(scale_factor);
}
ZGUI_API void zguiPushStyleColor4f(ImGuiCol idx, const float col[4]) {
ImGui::PushStyleColor(idx, { col[0], col[1], col[2], col[3] });
}
ZGUI_API void zguiPushStyleColor1u(ImGuiCol idx, unsigned int col) {
ImGui::PushStyleColor(idx, col);
}
ZGUI_API void zguiPopStyleColor(int count) {
ImGui::PopStyleColor(count);
}
ZGUI_API void zguiPushStyleVar1f(ImGuiStyleVar idx, float var) {
ImGui::PushStyleVar(idx, var);
}
ZGUI_API void zguiPushStyleVar2f(ImGuiStyleVar idx, const float var[2]) {
ImGui::PushStyleVar(idx, { var[0], var[1] });
}
ZGUI_API void zguiPopStyleVar(int count) {
ImGui::PopStyleVar(count);
}
ZGUI_API void zguiPushItemWidth(float item_width) {
ImGui::PushItemWidth(item_width);
}
ZGUI_API void zguiPopItemWidth(void) {
ImGui::PopItemWidth();
}
ZGUI_API void zguiSetNextItemWidth(float item_width) {
ImGui::SetNextItemWidth(item_width);
}
ZGUI_API void zguiSetItemDefaultFocus(void) {
ImGui::SetItemDefaultFocus();
}
ZGUI_API ImFont* zguiGetFont(void) {
return ImGui::GetFont();
}
ZGUI_API float zguiGetFontSize(void) {
return ImGui::GetFontSize();
}
ZGUI_API void zguiGetFontTexUvWhitePixel(float uv[2]) {
const ImVec2 cs = ImGui::GetFontTexUvWhitePixel();
uv[0] = cs[0];
uv[1] = cs[1];
}
ZGUI_API void zguiPushFont(ImFont* font) {
ImGui::PushFont(font);
}
ZGUI_API void zguiPopFont(void) {
ImGui::PopFont();
}
ZGUI_API bool zguiTreeNode(const char* label) {
return ImGui::TreeNode(label);
}
ZGUI_API bool zguiTreeNodeStrId(const char* str_id, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
const bool ret = ImGui::TreeNodeV(str_id, fmt, args);
va_end(args);
return ret;
}
ZGUI_API bool zguiTreeNodeStrIdFlags(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
const bool ret = ImGui::TreeNodeExV(str_id, flags, fmt, args);
va_end(args);
return ret;
}
ZGUI_API bool zguiTreeNodePtrId(const void* ptr_id, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
const bool ret = ImGui::TreeNodeV(ptr_id, fmt, args);
va_end(args);
return ret;
}
ZGUI_API bool zguiTreeNodePtrIdFlags(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
const bool ret = ImGui::TreeNodeExV(ptr_id, flags, fmt, args);
va_end(args);
return ret;
}
ZGUI_API bool zguiCollapsingHeader(const char* label, ImGuiTreeNodeFlags flags) {
return ImGui::CollapsingHeader(label, flags);
}
ZGUI_API bool zguiCollapsingHeaderStatePtr(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags) {
return ImGui::CollapsingHeader(label, p_visible, flags);
}
ZGUI_API void zguiSetNextItemOpen(bool is_open, ImGuiCond cond) {
ImGui::SetNextItemOpen(is_open, cond);
}
ZGUI_API void zguiTreePushStrId(const char* str_id) {
ImGui::TreePush(str_id);
}
ZGUI_API void zguiTreePushPtrId(const void* ptr_id) {
ImGui::TreePush(ptr_id);
}
ZGUI_API void zguiTreePop(void) {
ImGui::TreePop();
}
ZGUI_API void zguiPushStrId(const char* str_id_begin, const char* str_id_end) {
ImGui::PushID(str_id_begin, str_id_end);
}
ZGUI_API void zguiPushStrIdZ(const char* str_id) {
ImGui::PushID(str_id);
}
ZGUI_API void zguiPushPtrId(const void* ptr_id) {
ImGui::PushID(ptr_id);
}
ZGUI_API void zguiPushIntId(int int_id) {
ImGui::PushID(int_id);
}
ZGUI_API void zguiPopId(void) {
ImGui::PopID();
}
ZGUI_API ImGuiID zguiGetStrId(const char* str_id_begin, const char* str_id_end) {
return ImGui::GetID(str_id_begin, str_id_end);
}
ZGUI_API ImGuiID zguiGetStrIdZ(const char* str_id) {
return ImGui::GetID(str_id);
}
ZGUI_API ImGuiID zguiGetPtrId(const void* ptr_id) {
return ImGui::GetID(ptr_id);
}
ZGUI_API void zguiSetClipboardText(const char* text) {
ImGui::SetClipboardText(text);
}
ZGUI_API const char* zguiGetClipboardText(void) {
return ImGui::GetClipboardText();
}
ZGUI_API ImFont* zguiIoAddFontFromFileWithConfig(
const char* filename,
float size_pixels,
const ImFontConfig* config,
const ImWchar* ranges
) {
return ImGui::GetIO().Fonts->AddFontFromFileTTF(filename, size_pixels, config, ranges);
}
ZGUI_API ImFont* zguiIoAddFontFromFile(const char* filename, float size_pixels) {
return ImGui::GetIO().Fonts->AddFontFromFileTTF(filename, size_pixels, nullptr, nullptr);
}
ZGUI_API ImFont* zguiIoAddFontFromMemoryWithConfig(
void* font_data,
int font_size,
float size_pixels,
const ImFontConfig* config,
const ImWchar* ranges
) {
return ImGui::GetIO().Fonts->AddFontFromMemoryTTF(font_data, font_size, size_pixels, config, ranges);
}
ZGUI_API ImFont* zguiIoAddFontFromMemory(void* font_data, int font_size, float size_pixels) {
ImFontConfig config = ImFontConfig();
config.FontDataOwnedByAtlas = false;
return ImGui::GetIO().Fonts->AddFontFromMemoryTTF(font_data, font_size, size_pixels, &config, nullptr);
}
ZGUI_API ImFontConfig zguiFontConfig_Init(void) {
return ImFontConfig();
}
ZGUI_API ImFont* zguiIoGetFont(unsigned int index) {
return ImGui::GetIO().Fonts->Fonts[index];
}
ZGUI_API void zguiIoSetDefaultFont(ImFont* font) {
ImGui::GetIO().FontDefault = font;
}
ZGUI_API unsigned char *zguiIoGetFontsTexDataAsRgba32(int *width, int *height) {
unsigned char *font_pixels;
int font_width, font_height;
ImGui::GetIO().Fonts->GetTexDataAsRGBA32(&font_pixels, &font_width, &font_height);
*width = font_width;
*height = font_height;
return font_pixels;
}
ZGUI_API void zguiIoSetFontsTexId(ImTextureID id) {
ImGui::GetIO().Fonts->TexID = id;
}
ZGUI_API ImTextureID zguiIoGetFontsTexId(void) {
return ImGui::GetIO().Fonts->TexID;
}
ZGUI_API bool zguiIoGetWantCaptureMouse(void) {
return ImGui::GetIO().WantCaptureMouse;
}
ZGUI_API bool zguiIoGetWantCaptureKeyboard(void) {
return ImGui::GetIO().WantCaptureKeyboard;
}
ZGUI_API void zguiIoSetIniFilename(const char* filename) {
ImGui::GetIO().IniFilename = filename;
}
ZGUI_API void zguiIoSetConfigFlags(ImGuiConfigFlags flags) {
ImGui::GetIO().ConfigFlags = flags;
}
ZGUI_API void zguiIoSetDisplaySize(float width, float height) {
ImGui::GetIO().DisplaySize = { width, height };
}
ZGUI_API void zguiIoGetDisplaySize(float size[2]) {
const ImVec2 ds = ImGui::GetIO().DisplaySize;
size[0] = ds[0];
size[1] = ds[1];
}
ZGUI_API void zguiIoSetDisplayFramebufferScale(float sx, float sy) {
ImGui::GetIO().DisplayFramebufferScale = { sx, sy };
}
ZGUI_API void zguiIoSetDeltaTime(float delta_time) {
ImGui::GetIO().DeltaTime = delta_time;
}
ZGUI_API void zguiIoAddFocusEvent(bool focused) {
ImGui::GetIO().AddFocusEvent(focused);
}
ZGUI_API void zguiIoAddMousePositionEvent(float x, float y) {
ImGui::GetIO().AddMousePosEvent(x, y);
}
ZGUI_API void zguiIoAddMouseButtonEvent(ImGuiMouseButton button, bool down) {
ImGui::GetIO().AddMouseButtonEvent(button, down);
}
ZGUI_API void zguiIoAddMouseWheelEvent(float x, float y) {
ImGui::GetIO().AddMouseWheelEvent(x, y);
}
ZGUI_API void zguiIoAddKeyEvent(ImGuiKey key, bool down) {
ImGui::GetIO().AddKeyEvent(key, down);
}
ZGUI_API void zguiIoAddInputCharactersUTF8(const char* utf8_chars) {
ImGui::GetIO().AddInputCharactersUTF8(utf8_chars);
}
ZGUI_API void zguiIoSetKeyEventNativeData(ImGuiKey key, int keycode, int scancode) {
ImGui::GetIO().SetKeyEventNativeData(key, keycode, scancode);
}
ZGUI_API void zguiIoAddCharacterEvent(int c) {
ImGui::GetIO().AddInputCharacter(c);
}
ZGUI_API bool zguiIsItemHovered(ImGuiHoveredFlags flags) {
return ImGui::IsItemHovered(flags);
}
ZGUI_API bool zguiIsItemActive(void) {
return ImGui::IsItemActive();
}
ZGUI_API bool zguiIsItemFocused(void) {
return ImGui::IsItemFocused();
}
ZGUI_API bool zguiIsItemClicked(ImGuiMouseButton mouse_button) {
return ImGui::IsItemClicked(mouse_button);
}
ZGUI_API bool zguiIsMouseDoubleClicked(ImGuiMouseButton button) {
return ImGui::IsMouseDoubleClicked(button);
}
ZGUI_API bool zguiIsItemVisible(void) {
return ImGui::IsItemVisible();
}
ZGUI_API bool zguiIsItemEdited(void) {
return ImGui::IsItemEdited();
}
ZGUI_API bool zguiIsItemActivated(void) {
return ImGui::IsItemActivated();
}
ZGUI_API bool zguiIsItemDeactivated(void) {
return ImGui::IsItemDeactivated();
}
ZGUI_API bool zguiIsItemDeactivatedAfterEdit(void) {
return ImGui::IsItemDeactivatedAfterEdit();
}
ZGUI_API bool zguiIsItemToggledOpen(void) {
return ImGui::IsItemToggledOpen();
}
ZGUI_API bool zguiIsAnyItemHovered(void) {
return ImGui::IsAnyItemHovered();
}
ZGUI_API bool zguiIsAnyItemActive(void) {
return ImGui::IsAnyItemActive();
}
ZGUI_API bool zguiIsAnyItemFocused(void) {
return ImGui::IsAnyItemFocused();
}
ZGUI_API void zguiGetContentRegionAvail(float pos[2]) {
const ImVec2 p = ImGui::GetContentRegionAvail();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiGetContentRegionMax(float pos[2]) {
const ImVec2 p = ImGui::GetContentRegionMax();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiGetWindowContentRegionMin(float pos[2]) {
const ImVec2 p = ImGui::GetWindowContentRegionMin();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiGetWindowContentRegionMax(float pos[2]) {
const ImVec2 p = ImGui::GetWindowContentRegionMax();
pos[0] = p.x;
pos[1] = p.y;
}
ZGUI_API void zguiPushTextWrapPos(float wrap_pos_x) {
ImGui::PushTextWrapPos(wrap_pos_x);
}
ZGUI_API void zguiPopTextWrapPos(void) {
ImGui::PopTextWrapPos();
}
ZGUI_API bool zguiBeginTabBar(const char* string, ImGuiTabBarFlags flags) {
return ImGui::BeginTabBar(string, flags);
}
ZGUI_API bool zguiBeginTabItem(const char* string, bool* p_open, ImGuiTabItemFlags flags) {
return ImGui::BeginTabItem(string, p_open, flags);
}
ZGUI_API void zguiEndTabItem(void) {
ImGui::EndTabItem();
}
ZGUI_API void zguiEndTabBar(void) {
ImGui::EndTabBar();
}
ZGUI_API void zguiSetTabItemClosed(const char* tab_or_docked_window_label) {
ImGui::SetTabItemClosed(tab_or_docked_window_label);
}
ZGUI_API bool zguiBeginMenuBar(void) {
return ImGui::BeginMenuBar();
}
ZGUI_API void zguiEndMenuBar(void) {
ImGui::EndMenuBar();
}
ZGUI_API bool zguiBeginMainMenuBar(void) {
return ImGui::BeginMainMenuBar();
}
ZGUI_API void zguiEndMainMenuBar(void) {
ImGui::EndMainMenuBar();
}
ZGUI_API bool zguiBeginMenu(const char* label, bool enabled) {
return ImGui::BeginMenu(label, enabled);
}
ZGUI_API void zguiEndMenu(void) {
ImGui::EndMenu();
}
ZGUI_API bool zguiMenuItem(const char* label, const char* shortcut, bool selected, bool enabled) {
return ImGui::MenuItem(label, shortcut, selected, enabled);
}
ZGUI_API bool zguiMenuItemPtr(const char* label, const char* shortcut, bool* selected, bool enabled) {
return ImGui::MenuItem(label, shortcut, selected, enabled);
}
ZGUI_API bool zguiBeginTooltip(void) {
return ImGui::BeginTooltip();
}
ZGUI_API void zguiEndTooltip(void) {
ImGui::EndTooltip();
}
ZGUI_API bool zguiBeginPopupContextWindow(void) {
return ImGui::BeginPopupContextWindow();
}
ZGUI_API bool zguiBeginPopupContextItem(void) {
return ImGui::BeginPopupContextItem();
}
ZGUI_API bool zguiBeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags flags) {
return ImGui::BeginPopupModal(name, p_open, flags);
}
ZGUI_API void zguiEndPopup(void) {
ImGui::EndPopup();
}
ZGUI_API void zguiOpenPopup(const char* str_id, ImGuiPopupFlags popup_flags) {
ImGui::OpenPopup(str_id, popup_flags);
}
ZGUI_API void zguiCloseCurrentPopup(void) {
ImGui::CloseCurrentPopup();
}
//--------------------------------------------------------------------------------------------------
//
// Tables
//
//--------------------------------------------------------------------------------------------------
ZGUI_API void zguiBeginTable(
const char* str_id,
int column,
ImGuiTableFlags flags,
const float outer_size[2],
float inner_width
) {
ImGui::BeginTable(str_id, column, flags, { outer_size[0], outer_size[1] }, inner_width);
}
ZGUI_API void zguiEndTable(void) {
ImGui::EndTable();
}
ZGUI_API void zguiTableNextRow(ImGuiTableRowFlags row_flags, float min_row_height) {
ImGui::TableNextRow(row_flags, min_row_height);
}
ZGUI_API bool zguiTableNextColumn(void) {
return ImGui::TableNextColumn();
}
ZGUI_API bool zguiTableSetColumnIndex(int column_n) {
return ImGui::TableSetColumnIndex(column_n);
}
ZGUI_API void zguiTableSetupColumn(
const char* label,
ImGuiTableColumnFlags flags,
float init_width_or_height,
ImGuiID user_id
) {
ImGui::TableSetupColumn(label, flags, init_width_or_height, user_id);
}
ZGUI_API void zguiTableSetupScrollFreeze(int cols, int rows) {
ImGui::TableSetupScrollFreeze(cols, rows);
}
ZGUI_API void zguiTableHeadersRow(void) {
ImGui::TableHeadersRow();
}
ZGUI_API void zguiTableHeader(const char* label) {
ImGui::TableHeader(label);
}
ZGUI_API ImGuiTableSortSpecs* zguiTableGetSortSpecs(void) {
return ImGui::TableGetSortSpecs();
}
ZGUI_API int zguiTableGetColumnCount(void) {
return ImGui::TableGetColumnCount();
}
ZGUI_API int zguiTableGetColumnIndex(void) {
return ImGui::TableGetColumnIndex();
}
ZGUI_API int zguiTableGetRowIndex(void) {
return ImGui::TableGetRowIndex();
}
ZGUI_API const char* zguiTableGetColumnName(int column_n) {
return ImGui::TableGetColumnName(column_n);
}
ZGUI_API ImGuiTableColumnFlags zguiTableGetColumnFlags(int column_n) {
return ImGui::TableGetColumnFlags(column_n);
}
ZGUI_API void zguiTableSetColumnEnabled(int column_n, bool v) {
ImGui::TableSetColumnEnabled(column_n, v);
}
ZGUI_API void zguiTableSetBgColor(ImGuiTableBgTarget target, unsigned int color, int column_n) {
ImGui::TableSetBgColor(target, color, column_n);
}
//--------------------------------------------------------------------------------------------------
//
// Color Utilities
//
//--------------------------------------------------------------------------------------------------
ZGUI_API void zguiColorConvertU32ToFloat4(ImU32 in, float rgba[4]) {
const ImVec4 c = ImGui::ColorConvertU32ToFloat4(in);
rgba[0] = c.x;
rgba[1] = c.y;
rgba[2] = c.z;
rgba[3] = c.w;
}
ZGUI_API ImU32 zguiColorConvertFloat4ToU32(const float in[4]) {
return ImGui::ColorConvertFloat4ToU32({ in[0], in[1], in[2], in[3] });
}
ZGUI_API void zguiColorConvertRGBtoHSV(float r, float g, float b, float* out_h, float* out_s, float* out_v) {
return ImGui::ColorConvertRGBtoHSV(r, g, b, *out_h, *out_s, *out_v);
}
ZGUI_API void zguiColorConvertHSVtoRGB(float h, float s, float v, float* out_r, float* out_g, float* out_b) {
return ImGui::ColorConvertHSVtoRGB(h, s, v, *out_r, *out_g, *out_b);
}
//--------------------------------------------------------------------------------------------------
//
// DrawList
//
//--------------------------------------------------------------------------------------------------
ZGUI_API ImDrawList *zguiGetWindowDrawList(void) {
return ImGui::GetWindowDrawList();
}
ZGUI_API ImDrawList *zguiGetBackgroundDrawList(void) {
return ImGui::GetBackgroundDrawList();
}
ZGUI_API ImDrawList *zguiGetForegroundDrawList(void) {
return ImGui::GetForegroundDrawList();
}
ZGUI_API ImDrawList *zguiCreateDrawList(void) {
return IM_NEW(ImDrawList)(ImGui::GetDrawListSharedData());
}
ZGUI_API void zguiDestroyDrawList(ImDrawList *draw_list) {
IM_DELETE(draw_list);
}
ZGUI_API const char *zguiDrawList_GetOwnerName(ImDrawList *draw_list) {
return draw_list->_OwnerName;
}
ZGUI_API void zguiDrawList_ResetForNewFrame(ImDrawList *draw_list) {
draw_list->_ResetForNewFrame();
}
ZGUI_API void zguiDrawList_ClearFreeMemory(ImDrawList *draw_list) {
draw_list->_ClearFreeMemory();
}
ZGUI_API int zguiDrawList_GetVertexBufferLength(ImDrawList *draw_list) {
return draw_list->VtxBuffer.size();
}
ZGUI_API ImDrawVert *zguiDrawList_GetVertexBufferData(ImDrawList *draw_list) {
return draw_list->VtxBuffer.begin();
}
ZGUI_API int zguiDrawList_GetIndexBufferLength(ImDrawList *draw_list) {
return draw_list->IdxBuffer.size();
}
ZGUI_API ImDrawIdx *zguiDrawList_GetIndexBufferData(ImDrawList *draw_list) {
return draw_list->IdxBuffer.begin();
}
ZGUI_API unsigned int zguiDrawList_GetCurrentIndex(ImDrawList *draw_list) {
return draw_list->_VtxCurrentIdx;
}
ZGUI_API int zguiDrawList_GetCmdBufferLength(ImDrawList *draw_list) {
return draw_list->CmdBuffer.size();
}
ZGUI_API ImDrawCmd *zguiDrawList_GetCmdBufferData(ImDrawList *draw_list) {
return draw_list->CmdBuffer.begin();
}
ZGUI_API void zguiDrawList_SetFlags(ImDrawList *draw_list, ImDrawListFlags flags) {
draw_list->Flags = flags;
}
ZGUI_API ImDrawListFlags zguiDrawList_GetFlags(ImDrawList *draw_list) {
return draw_list->Flags;
}
ZGUI_API void zguiDrawList_PushClipRect(
ImDrawList* draw_list,
const float clip_rect_min[2],
const float clip_rect_max[2],
bool intersect_with_current_clip_rect
) {
draw_list->PushClipRect(
{ clip_rect_min[0], clip_rect_min[1] },
{ clip_rect_max[0], clip_rect_max[1] },
intersect_with_current_clip_rect
);
}
ZGUI_API void zguiDrawList_PushClipRectFullScreen(ImDrawList* draw_list) {
draw_list->PushClipRectFullScreen();
}
ZGUI_API void zguiDrawList_PopClipRect(ImDrawList* draw_list) {
draw_list->PopClipRect();
}
ZGUI_API void zguiDrawList_PushTextureId(ImDrawList* draw_list, ImTextureID texture_id) {
draw_list->PushTextureID(texture_id);
}
ZGUI_API void zguiDrawList_PopTextureId(ImDrawList* draw_list) {
draw_list->PopTextureID();
}
ZGUI_API void zguiDrawList_GetClipRectMin(ImDrawList* draw_list, float clip_min[2]) {
const ImVec2 c = draw_list->GetClipRectMin();
clip_min[0] = c.x;
clip_min[1] = c.y;
}
ZGUI_API void zguiDrawList_GetClipRectMax(ImDrawList* draw_list, float clip_max[2]) {
const ImVec2 c = draw_list->GetClipRectMax();
clip_max[0] = c.x;
clip_max[1] = c.y;
}
ZGUI_API void zguiDrawList_AddLine(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
unsigned int col,
float thickness
) {
draw_list->AddLine({ p1[0], p1[1] }, { p2[0], p2[1] }, col, thickness);
}
ZGUI_API void zguiDrawList_AddRect(
ImDrawList* draw_list,
const float pmin[2],
const float pmax[2],
unsigned int col,
float rounding,
ImDrawFlags flags,
float thickness
) {
draw_list->AddRect({ pmin[0], pmin[1] }, { pmax[0], pmax[1] }, col, rounding, flags, thickness);
}
ZGUI_API void zguiDrawList_AddRectFilled(
ImDrawList* draw_list,
const float pmin[2],
const float pmax[2],
unsigned int col,
float rounding,
ImDrawFlags flags
) {
draw_list->AddRectFilled({ pmin[0], pmin[1] }, { pmax[0], pmax[1] }, col, rounding, flags);
}
ZGUI_API void zguiDrawList_AddRectFilledMultiColor(
ImDrawList* draw_list,
const float pmin[2],
const float pmax[2],
unsigned int col_upr_left,
unsigned int col_upr_right,
unsigned int col_bot_right,
unsigned int col_bot_left
) {
draw_list->AddRectFilledMultiColor(
{ pmin[0], pmin[1] },
{ pmax[0], pmax[1] },
col_upr_left,
col_upr_right,
col_bot_right,
col_bot_left
);
}
ZGUI_API void zguiDrawList_AddQuad(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
const float p3[2],
const float p4[2],
unsigned int col,
float thickness
) {
draw_list->AddQuad({ p1[0], p1[1] }, { p2[0], p2[1] }, { p3[0], p3[1] }, { p4[0], p4[1] }, col, thickness);
}
ZGUI_API void zguiDrawList_AddQuadFilled(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
const float p3[2],
const float p4[2],
unsigned int col
) {
draw_list->AddQuadFilled({ p1[0], p1[1] }, { p2[0], p2[1] }, { p3[0], p3[1] }, { p4[0], p4[1] }, col);
}
ZGUI_API void zguiDrawList_AddTriangle(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
const float p3[2],
unsigned int col,
float thickness
) {
draw_list->AddTriangle({ p1[0], p1[1] }, { p2[0], p2[1] }, { p3[0], p3[1] }, col, thickness);
}
ZGUI_API void zguiDrawList_AddTriangleFilled(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
const float p3[2],
unsigned int col
) {
draw_list->AddTriangleFilled({ p1[0], p1[1] }, { p2[0], p2[1] }, { p3[0], p3[1] }, col);
}
ZGUI_API void zguiDrawList_AddCircle(
ImDrawList* draw_list,
const float center[2],
float radius,
unsigned int col,
int num_segments,
float thickness
) {
draw_list->AddCircle({ center[0], center[1] }, radius, col, num_segments, thickness);
}
ZGUI_API void zguiDrawList_AddCircleFilled(
ImDrawList* draw_list,
const float center[2],
float radius,
unsigned int col,
int num_segments
) {
draw_list->AddCircleFilled({ center[0], center[1] }, radius, col, num_segments);
}
ZGUI_API void zguiDrawList_AddNgon(
ImDrawList* draw_list,
const float center[2],
float radius,
unsigned int col,
int num_segments,
float thickness
) {
draw_list->AddNgon({ center[0], center[1] }, radius, col, num_segments, thickness);
}
ZGUI_API void zguiDrawList_AddNgonFilled(
ImDrawList* draw_list,
const float center[2],
float radius,
unsigned int col,
int num_segments
) {
draw_list->AddNgonFilled({ center[0], center[1] }, radius, col, num_segments);
}
ZGUI_API void zguiDrawList_AddText(
ImDrawList* draw_list,
const float pos[2],
unsigned int col,
const char* text_begin,
const char* text_end
) {
draw_list->AddText({ pos[0], pos[1] }, col, text_begin, text_end);
}
ZGUI_API void zguiDrawList_AddPolyline(
ImDrawList* draw_list,
const float points[][2],
int num_points,
unsigned int col,
ImDrawFlags flags,
float thickness
) {
draw_list->AddPolyline((const ImVec2*)&points[0][0], num_points, col, flags, thickness);
}
ZGUI_API void zguiDrawList_AddConvexPolyFilled(
ImDrawList* draw_list,
const float points[][2],
int num_points,
unsigned int col
) {
draw_list->AddConvexPolyFilled((const ImVec2*)&points[0][0], num_points, col);
}
ZGUI_API void zguiDrawList_AddBezierCubic(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
const float p3[2],
const float p4[2],
unsigned int col,
float thickness,
int num_segments
) {
draw_list->AddBezierCubic(
{ p1[0], p1[1] }, { p2[0], p2[1] }, { p3[0], p3[1] }, { p4[0], p4[1] }, col, thickness, num_segments
);
}
ZGUI_API void zguiDrawList_AddBezierQuadratic(
ImDrawList* draw_list,
const float p1[2],
const float p2[2],
const float p3[2],
unsigned int col,
float thickness,
int num_segments
) {
draw_list->AddBezierQuadratic(
{ p1[0], p1[1] }, { p2[0], p2[1] }, { p3[0], p3[1] }, col, thickness, num_segments
);
}
ZGUI_API void zguiDrawList_AddImage(
ImDrawList* draw_list,
ImTextureID user_texture_id,
const float pmin[2],
const float pmax[2],
const float uvmin[2],
const float uvmax[2],
unsigned int col
) {
draw_list->AddImage(
user_texture_id,
{ pmin[0], pmin[1] },
{ pmax[0], pmax[1] },
{ uvmin[0], uvmin[1] },
{ uvmax[0], uvmax[1] },
col
);
}
ZGUI_API void zguiDrawList_AddImageQuad(
ImDrawList* draw_list,
ImTextureID user_texture_id,
const float p1[2],
const float p2[2],
const float p3[2],
const float p4[2],
const float uv1[2],
const float uv2[2],
const float uv3[2],
const float uv4[2],
unsigned int col
) {
draw_list->AddImageQuad(
user_texture_id,
{ p1[0], p1[1] },
{ p2[0], p2[1] },
{ p3[0], p3[1] },
{ p4[0], p4[1] },
{ uv1[0], uv1[1] },
{ uv2[0], uv2[1] },
{ uv3[0], uv3[1] },
{ uv4[0], uv4[1] },
col
);
}
ZGUI_API void zguiDrawList_AddImageRounded(
ImDrawList* draw_list,
ImTextureID user_texture_id,
const float pmin[2],
const float pmax[2],
const float uvmin[2],
const float uvmax[2],
unsigned int col,
float rounding,
ImDrawFlags flags
) {
draw_list->AddImageRounded(
user_texture_id,
{ pmin[0], pmin[1] },
{ pmax[0], pmax[1] },
{ uvmin[0], uvmin[1] },
{ uvmax[0], uvmax[1] },
col,
rounding,
flags
);
}
ZGUI_API void zguiDrawList_PathClear(ImDrawList* draw_list) {
draw_list->PathClear();
}
ZGUI_API void zguiDrawList_PathLineTo(ImDrawList* draw_list, const float pos[2]) {
draw_list->PathLineTo({ pos[0], pos[1] });
}
ZGUI_API void zguiDrawList_PathLineToMergeDuplicate(ImDrawList* draw_list, const float pos[2]) {
draw_list->PathLineToMergeDuplicate({ pos[0], pos[1] });
}
ZGUI_API void zguiDrawList_PathFillConvex(ImDrawList* draw_list, unsigned int col) {
draw_list->PathFillConvex(col);
}
ZGUI_API void zguiDrawList_PathStroke(ImDrawList* draw_list, unsigned int col, ImDrawFlags flags, float thickness) {
draw_list->PathStroke(col, flags, thickness);
}
ZGUI_API void zguiDrawList_PathArcTo(
ImDrawList* draw_list,
const float center[2],
float radius,
float a_min,
float a_max,
int num_segments
) {
draw_list->PathArcTo({ center[0], center[1] }, radius, a_min, a_max, num_segments);
}
ZGUI_API void zguiDrawList_PathArcToFast(
ImDrawList* draw_list,
const float center[2],
float radius,
int a_min_of_12,
int a_max_of_12
) {
draw_list->PathArcToFast({ center[0], center[1] }, radius, a_min_of_12, a_max_of_12);
}
ZGUI_API void zguiDrawList_PathBezierCubicCurveTo(
ImDrawList* draw_list,
const float p2[2],
const float p3[2],
const float p4[2],
int num_segments
) {
draw_list->PathBezierCubicCurveTo({ p2[0], p2[1] }, { p3[0], p3[1] }, { p4[0], p4[1] }, num_segments);
}
ZGUI_API void zguiDrawList_PathBezierQuadraticCurveTo(
ImDrawList* draw_list,
const float p2[2],
const float p3[2],
int num_segments
) {
draw_list->PathBezierQuadraticCurveTo({ p2[0], p2[1] }, { p3[0], p3[1] }, num_segments);
}
ZGUI_API void zguiDrawList_PathRect(
ImDrawList* draw_list,
const float rect_min[2],
const float rect_max[2],
float rounding,
ImDrawFlags flags
) {
draw_list->PathRect({ rect_min[0], rect_min[1] }, { rect_max[0], rect_max[1] }, rounding, flags);
}
ZGUI_API void zguiDrawList_PrimReserve( ImDrawList* draw_list, int idx_count, int vtx_count) {
draw_list->PrimReserve(idx_count, vtx_count);
}
ZGUI_API void zguiDrawList_PrimUnreserve( ImDrawList* draw_list, int idx_count, int vtx_count) {
draw_list->PrimUnreserve(idx_count, vtx_count);
}
ZGUI_API void zguiDrawList_PrimRect(
ImDrawList* draw_list,
const float a[2],
const float b[2],
unsigned int col
) {
draw_list->PrimRect({ a[0], a[1] }, { b[0], b[1] }, col);
}
ZGUI_API void zguiDrawList_PrimRectUV(
ImDrawList* draw_list,
const float a[2],
const float b[2],
const float uv_a[2],
const float uv_b[2],
unsigned int col
) {
draw_list->PrimRectUV({ a[0], a[1] }, { b[0], b[1] }, { uv_a[0], uv_a[1] }, { uv_b[0], uv_b[1] }, col);
}
ZGUI_API void zguiDrawList_PrimQuadUV(
ImDrawList* draw_list,
const float a[2],
const float b[2],
const float c[2],
const float d[2],
const float uv_a[2],
const float uv_b[2],
const float uv_c[2],
const float uv_d[2],
unsigned int col
) {
draw_list->PrimQuadUV(
{ a[0], a[1] }, { b[0], b[1] }, { c[0], c[1] }, { d[0], d[1] },
{ uv_a[0], uv_a[1] }, { uv_b[0], uv_b[1] }, { uv_c[0], uv_c[1] }, { uv_d[0], uv_d[1] },
col
);
}
ZGUI_API void zguiDrawList_PrimWriteVtx(
ImDrawList* draw_list,
const float pos[2],
const float uv[2],
unsigned int col
) {
draw_list->PrimWriteVtx({ pos[0], pos[1] }, { uv[0], uv[1] }, col);
}
ZGUI_API void zguiDrawList_PrimWriteIdx( ImDrawList* draw_list, ImDrawIdx idx) {
draw_list->PrimWriteIdx(idx);
}
//--------------------------------------------------------------------------------------------------
//
// Viewport
//
//--------------------------------------------------------------------------------------------------
ZGUI_API ImGuiViewport* zguiGetMainViewport(void) {
return ImGui::GetMainViewport();
}
ZGUI_API void zguiViewport_GetPos(ImGuiViewport* viewport, float p[2]) {
const ImVec2 pos = viewport->Pos;
p[0] = pos.x;
p[1] = pos.y;
}
ZGUI_API void zguiViewport_GetSize(ImGuiViewport* viewport, float p[2]) {
const ImVec2 sz = viewport->Size;
p[0] = sz.x;
p[1] = sz.y;
}
ZGUI_API void zguiViewport_GetWorkPos(ImGuiViewport* viewport, float p[2]) {
const ImVec2 pos = viewport->WorkPos;
p[0] = pos.x;
p[1] = pos.y;
}
ZGUI_API void zguiViewport_GetWorkSize(ImGuiViewport* viewport, float p[2]) {
const ImVec2 sz = viewport->WorkSize;
p[0] = sz.x;
p[1] = sz.y;
}
//--------------------------------------------------------------------------------------------------
//
// ImPlot
//
//--------------------------------------------------------------------------------------------------
ZGUI_API ImPlotContext* zguiPlot_CreateContext(void) {
return ImPlot::CreateContext();
}
ZGUI_API void zguiPlot_DestroyContext(ImPlotContext* ctx) {
ImPlot::DestroyContext(ctx);
}
ZGUI_API ImPlotContext* zguiPlot_GetCurrentContext(void) {
return ImPlot::GetCurrentContext();
}
ZGUI_API ImPlotStyle zguiPlotStyle_Init(void) {
return ImPlotStyle();
}
ZGUI_API ImPlotStyle* zguiPlot_GetStyle(void) {
return &ImPlot::GetStyle();
}
ZGUI_API void zguiPlot_PushStyleColor4f(ImPlotCol idx, const float col[4]) {
ImPlot::PushStyleColor(idx, { col[0], col[1], col[2], col[3] });
}
ZGUI_API void zguiPlot_PushStyleColor1u(ImPlotCol idx, unsigned int col) {
ImPlot::PushStyleColor(idx, col);
}
ZGUI_API void zguiPlot_PopStyleColor(int count) {
ImPlot::PopStyleColor(count);
}
ZGUI_API void zguiPlot_PushStyleVar1i(ImPlotStyleVar idx, int var) {
ImPlot::PushStyleVar(idx, var);
}
ZGUI_API void zguiPlot_PushStyleVar1f(ImPlotStyleVar idx, float var) {
ImPlot::PushStyleVar(idx, var);
}
ZGUI_API void zguiPlot_PushStyleVar2f(ImPlotStyleVar idx, const float var[2]) {
ImPlot::PushStyleVar(idx, { var[0], var[1] });
}
ZGUI_API void zguiPlot_PopStyleVar(int count) {
ImPlot::PopStyleVar(count);
}
ZGUI_API void zguiPlot_SetupLegend(ImPlotLocation location, ImPlotLegendFlags flags) {
ImPlot::SetupLegend(location, flags);
}
ZGUI_API void zguiPlot_SetupAxis(ImAxis axis, const char* label, ImPlotAxisFlags flags) {
ImPlot::SetupAxis(axis, label, flags);
}
ZGUI_API void zguiPlot_SetupAxisLimits(ImAxis axis, double v_min, double v_max, ImPlotCond cond) {
ImPlot::SetupAxisLimits(axis, v_min, v_max, cond);
}
ZGUI_API void zguiPlot_SetupFinish(void) {
ImPlot::SetupFinish();
}
ZGUI_API bool zguiPlot_BeginPlot(const char* title_id, float width, float height, ImPlotFlags flags) {
return ImPlot::BeginPlot(title_id, { width, height }, flags);
}
ZGUI_API void zguiPlot_PlotLineValues(
const char* label_id,
ImGuiDataType data_type,
const void* values,
int count,
double xscale,
double x0,
ImPlotLineFlags flags,
int offset,
int stride
) {
if (data_type == ImGuiDataType_S8)
ImPlot::PlotLine(label_id, (const ImS8*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_U8)
ImPlot::PlotLine(label_id, (const ImU8*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_S16)
ImPlot::PlotLine(label_id, (const ImS16*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_U16)
ImPlot::PlotLine(label_id, (const ImU16*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_S32)
ImPlot::PlotLine(label_id, (const ImS32*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_U32)
ImPlot::PlotLine(label_id, (const ImU32*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_Float)
ImPlot::PlotLine(label_id, (const float*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_Double)
ImPlot::PlotLine(label_id, (const double*)values, count, xscale, x0, flags, offset, stride);
else
assert(false);
}
ZGUI_API void zguiPlot_PlotLine(
const char* label_id,
ImGuiDataType data_type,
const void* xv,
const void* yv,
int count,
ImPlotLineFlags flags,
int offset,
int stride
) {
if (data_type == ImGuiDataType_S8)
ImPlot::PlotLine(label_id, (const ImS8*)xv, (const ImS8*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_U8)
ImPlot::PlotLine(label_id, (const ImU8*)xv, (const ImU8*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_S16)
ImPlot::PlotLine(label_id, (const ImS16*)xv, (const ImS16*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_U16)
ImPlot::PlotLine(label_id, (const ImU16*)xv, (const ImU16*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_S32)
ImPlot::PlotLine(label_id, (const ImS32*)xv, (const ImS32*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_U32)
ImPlot::PlotLine(label_id, (const ImU32*)xv, (const ImU32*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_Float)
ImPlot::PlotLine(label_id, (const float*)xv, (const float*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_Double)
ImPlot::PlotLine(label_id, (const double*)xv, (const double*)yv, count, flags, offset, stride);
else
assert(false);
}
ZGUI_API void zguiPlot_PlotScatter(
const char* label_id,
ImGuiDataType data_type,
const void* xv,
const void* yv,
int count,
ImPlotScatterFlags flags,
int offset,
int stride
) {
if (data_type == ImGuiDataType_S8)
ImPlot::PlotScatter(label_id, (const ImS8*)xv, (const ImS8*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_U8)
ImPlot::PlotScatter(label_id, (const ImU8*)xv, (const ImU8*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_S16)
ImPlot::PlotScatter(label_id, (const ImS16*)xv, (const ImS16*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_U16)
ImPlot::PlotScatter(label_id, (const ImU16*)xv, (const ImU16*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_S32)
ImPlot::PlotScatter(label_id, (const ImS32*)xv, (const ImS32*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_U32)
ImPlot::PlotScatter(label_id, (const ImU32*)xv, (const ImU32*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_Float)
ImPlot::PlotScatter(label_id, (const float*)xv, (const float*)yv, count, flags, offset, stride);
else if (data_type == ImGuiDataType_Double)
ImPlot::PlotScatter(label_id, (const double*)xv, (const double*)yv, count, flags, offset, stride);
else
assert(false);
}
ZGUI_API void zguiPlot_PlotScatterValues(
const char* label_id,
ImGuiDataType data_type,
const void* values,
int count,
double xscale,
double x0,
ImPlotScatterFlags flags,
int offset,
int stride
) {
if (data_type == ImGuiDataType_S8)
ImPlot::PlotScatter(label_id, (const ImS8*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_U8)
ImPlot::PlotScatter(label_id, (const ImU8*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_S16)
ImPlot::PlotScatter(label_id, (const ImS16*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_U16)
ImPlot::PlotScatter(label_id, (const ImU16*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_S32)
ImPlot::PlotScatter(label_id, (const ImS32*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_U32)
ImPlot::PlotScatter(label_id, (const ImU32*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_Float)
ImPlot::PlotScatter(label_id, (const float*)values, count, xscale, x0, flags, offset, stride);
else if (data_type == ImGuiDataType_Double)
ImPlot::PlotScatter(label_id, (const double*)values, count, xscale, x0, flags, offset, stride);
else
assert(false);
}
ZGUI_API void zguiPlot_EndPlot(void) {
ImPlot::EndPlot();
}
//--------------------------------------------------------------------------------------------------
} /* extern "C" */
|
0 | repos/zig_vulkan/deps/zgui | repos/zig_vulkan/deps/zgui/src/gui.zig | //--------------------------------------------------------------------------------------------------
const std = @import("std");
const assert = std.debug.assert;
//--------------------------------------------------------------------------------------------------
pub const f32_min: f32 = 1.17549435082228750796873653722225e-38;
pub const f32_max: f32 = 3.40282346638528859811704183484517e+38;
//--------------------------------------------------------------------------------------------------
pub const DrawIdx = u16;
pub const DrawVert = extern struct {
pos: [2]f32,
uv: [2]f32,
color: u32,
};
//--------------------------------------------------------------------------------------------------
pub fn init(allocator: std.mem.Allocator) void {
if (zguiGetCurrentContext() == null) {
mem_allocator = allocator;
mem_allocations = std.AutoHashMap(usize, usize).init(allocator);
mem_allocations.?.ensureTotalCapacity(32) catch @panic("zgui: out of memory");
zguiSetAllocatorFunctions(zguiMemAlloc, zguiMemFree);
_ = zguiCreateContext(null);
temp_buffer = std.ArrayList(u8).init(allocator);
temp_buffer.?.resize(3 * 1024 + 1) catch unreachable;
}
}
pub fn deinit() void {
if (zguiGetCurrentContext() != null) {
temp_buffer.?.deinit();
zguiDestroyContext(null);
if (mem_allocations.?.count() > 0) {
var it = mem_allocations.?.iterator();
while (it.next()) |kv| {
const address = kv.key_ptr.*;
const size = kv.value_ptr.*;
mem_allocator.?.free(@intToPtr([*]align(mem_alignment) u8, address)[0..size]);
std.log.info(
"[zgui] Possible memory leak or static memory usage detected: (address: 0x{x}, size: {d})",
.{ address, size },
);
}
mem_allocations.?.clearAndFree();
}
assert(mem_allocations.?.count() == 0);
mem_allocations.?.deinit();
mem_allocations = null;
mem_allocator = null;
}
}
pub fn initNoContext(allocator: std.mem.Allocator) void {
if (temp_buffer == null) {
temp_buffer = std.ArrayList(u8).init(allocator);
temp_buffer.?.resize(3 * 1024 + 1) catch unreachable;
}
}
pub fn deinitNoContext() void {
if (temp_buffer) |buf| {
buf.deinit();
}
}
extern fn zguiCreateContext(shared_font_atlas: ?*const anyopaque) Context;
extern fn zguiDestroyContext(ctx: ?Context) void;
extern fn zguiGetCurrentContext() ?Context;
//--------------------------------------------------------------------------------------------------
var mem_allocator: ?std.mem.Allocator = null;
var mem_allocations: ?std.AutoHashMap(usize, usize) = null;
var mem_mutex: std.Thread.Mutex = .{};
const mem_alignment = 16;
fn zguiMemAlloc(size: usize, _: ?*anyopaque) callconv(.C) ?*anyopaque {
mem_mutex.lock();
defer mem_mutex.unlock();
const mem = mem_allocator.?.alignedAlloc(
u8,
mem_alignment,
size,
) catch @panic("zgui: out of memory");
mem_allocations.?.put(@ptrToInt(mem.ptr), size) catch @panic("zgui: out of memory");
return mem.ptr;
}
fn zguiMemFree(maybe_ptr: ?*anyopaque, _: ?*anyopaque) callconv(.C) void {
if (maybe_ptr) |ptr| {
mem_mutex.lock();
defer mem_mutex.unlock();
if (mem_allocations != null) {
const size = mem_allocations.?.fetchRemove(@ptrToInt(ptr)).?.value;
const mem = @ptrCast([*]align(mem_alignment) u8, @alignCast(mem_alignment, ptr))[0..size];
mem_allocator.?.free(mem);
}
}
}
extern fn zguiSetAllocatorFunctions(
alloc_func: ?*const fn (usize, ?*anyopaque) callconv(.C) ?*anyopaque,
free_func: ?*const fn (?*anyopaque, ?*anyopaque) callconv(.C) void,
) void;
//--------------------------------------------------------------------------------------------------
pub const ConfigFlags = packed struct(u32) {
nav_enable_keyboard: bool = false,
nav_enable_gamepad: bool = false,
nav_enable_set_mouse_pos: bool = false,
nav_no_capture_keyboard: bool = false,
no_mouse: bool = false,
no_mouse_cursor_change: bool = false,
user_storage: u14 = 0,
is_srgb: bool = false,
is_touch_screen: bool = false,
_padding: u10 = 0,
};
pub const FontConfig = extern struct {
font_data: ?*anyopaque,
font_data_size: i32,
font_data_owned_by_atlas: bool,
font_no: i32,
size_pixels: f32,
oversample_h: i32,
oversample_v: i32,
pixel_snap_h: bool,
glyph_extra_spacing: [2]f32,
glyph_offset: [2]f32,
glyph_ranges: [*c]u16,
glyph_min_advance_x: f32,
glyph_max_advance_x: f32,
merge_mode: bool,
font_builder_flags: u32,
rasterizer_multiply: f32,
ellipsis_char: Wchar,
name: [40]u8,
dst_font: *Font,
pub fn init() FontConfig {
return zguiFontConfig_Init();
}
extern fn zguiFontConfig_Init() FontConfig;
};
pub const io = struct {
pub fn addFontFromFile(filename: [:0]const u8, size_pixels: f32) Font {
return zguiIoAddFontFromFile(filename, size_pixels);
}
extern fn zguiIoAddFontFromFile(filename: [*:0]const u8, size_pixels: f32) Font;
pub fn addFontFromFileWithConfig(
filename: [:0]const u8,
size_pixels: f32,
config: ?FontConfig,
ranges: ?[*]const Wchar,
) Font {
return zguiIoAddFontFromFileWithConfig(filename, size_pixels, if (config) |c| &c else null, ranges);
}
extern fn zguiIoAddFontFromFileWithConfig(
filename: [*:0]const u8,
size_pixels: f32,
config: ?*const FontConfig,
ranges: ?[*]const Wchar,
) Font;
pub fn addFontFromMemory(fontdata: []const u8, size_pixels: f32) Font {
return zguiIoAddFontFromMemory(fontdata.ptr, @intCast(i32, fontdata.len), size_pixels);
}
extern fn zguiIoAddFontFromMemory(font_data: *const anyopaque, font_size: i32, size_pixels: f32) Font;
pub fn addFontFromMemoryWithConfig(
fontdata: []const u8,
size_pixels: f32,
config: ?FontConfig,
ranges: ?[*]const Wchar,
) Font {
return zguiIoAddFontFromMemoryWithConfig(fontdata.ptr, @intCast(i32, fontdata.len), size_pixels, if (config) |c| &c else null, ranges);
}
extern fn zguiIoAddFontFromMemoryWithConfig(
font_data: *const anyopaque,
font_size: i32,
size_pixels: f32,
config: ?*const FontConfig,
ranges: ?[*]const Wchar,
) Font;
/// `pub fn getFont(index: u32) Font`
pub const getFont = zguiIoGetFont;
extern fn zguiIoGetFont(index: u32) Font;
/// `pub fn setDefaultFont(font: Font) void`
pub const setDefaultFont = zguiIoSetDefaultFont;
extern fn zguiIoSetDefaultFont(font: Font) void;
/// `pub fn getFontsTextDataAsRgba32() return fonts pixel data and size
pub const getFontsTextDataAsRgba32 = zguiIoGetFontsTexDataAsRgba32;
extern fn zguiIoGetFontsTexDataAsRgba32(width: *i32, height: *i32) [*c]const u32;
/// `pub fn setFontsTexId(id:TextureIdent) set the backend Id for the fonts atlas
pub const setFontsTexId = zguiIoSetFontsTexId;
extern fn zguiIoSetFontsTexId(id: TextureIdent) void;
pub const getFontsTexId = zguiIoGetFontsTexId;
extern fn zguiIoGetFontsTexId() TextureIdent;
/// `pub fn zguiIoGetWantCaptureMouse() bool`
pub const getWantCaptureMouse = zguiIoGetWantCaptureMouse;
extern fn zguiIoGetWantCaptureMouse() bool;
/// `pub fn zguiIoGetWantCaptureKeyboard() bool`
pub const getWantCaptureKeyboard = zguiIoGetWantCaptureKeyboard;
extern fn zguiIoGetWantCaptureKeyboard() bool;
pub fn setIniFilename(filename: ?[*:0]const u8) void {
zguiIoSetIniFilename(filename);
}
extern fn zguiIoSetIniFilename(filename: ?[*:0]const u8) void;
/// `pub fn setDisplaySize(width: f32, height: f32) void`
pub const setDisplaySize = zguiIoSetDisplaySize;
extern fn zguiIoSetDisplaySize(width: f32, height: f32) void;
pub fn getDisplaySize() [2]f32 {
var size: [2]f32 = undefined;
zguiIoGetDisplaySize(&size);
return size;
}
extern fn zguiIoGetDisplaySize(size: *[2]f32) void;
/// `pub fn setDisplayFramebufferScale(sx: f32, sy: f32) void`
pub const setDisplayFramebufferScale = zguiIoSetDisplayFramebufferScale;
extern fn zguiIoSetDisplayFramebufferScale(sx: f32, sy: f32) void;
/// `pub fn setConfigFlags(flags: ConfigFlags) void`
pub const setConfigFlags = zguiIoSetConfigFlags;
extern fn zguiIoSetConfigFlags(flags: ConfigFlags) void;
/// `pub fn setDeltaTime(delta_time: f32) void`
pub const setDeltaTime = zguiIoSetDeltaTime;
extern fn zguiIoSetDeltaTime(delta_time: f32) void;
pub const addFocusEvent = zguiIoAddFocusEvent;
extern fn zguiIoAddFocusEvent(focused: bool) void;
pub const addMousePositionEvent = zguiIoAddMousePositionEvent;
extern fn zguiIoAddMousePositionEvent(x: f32, y: f32) void;
pub const addMouseButtonEvent = zguiIoAddMouseButtonEvent;
extern fn zguiIoAddMouseButtonEvent(button: MouseButton, down: bool) void;
pub const addMouseWheelEvent = zguiIoAddMouseWheelEvent;
extern fn zguiIoAddMouseWheelEvent(x: f32, y: f32) void;
pub const addKeyEvent = zguiIoAddKeyEvent;
extern fn zguiIoAddKeyEvent(key: Key, down: bool) void;
pub const addInputCharactersUTF8 = zguiIoAddInputCharactersUTF8;
extern fn zguiIoAddInputCharactersUTF8(utf8_chars: ?[*:0]const u8) void;
pub const setKeyEventNativeData = zguiIoSetKeyEventNativeData;
extern fn zguiIoSetKeyEventNativeData(key: Key, keycode: i32, scancode: i32) void;
pub const addCharacterEvent = zguiIoAddCharacterEvent;
extern fn zguiIoAddCharacterEvent(char: i32) void;
};
pub fn setClipboardText(value: [:0]const u8) void {
zguiSetClipboardText(value.ptr);
}
pub fn getClipboardText() [:0]const u8 {
const value = zguiGetClipboardText();
return std.mem.span(value);
}
extern fn zguiSetClipboardText(text: [*:0]const u8) void;
extern fn zguiGetClipboardText() [*:0]const u8;
//--------------------------------------------------------------------------------------------------
const Context = *opaque {};
pub const DrawData = *extern struct {
valid: bool,
cmd_lists_count: i32,
total_idx_count: i32,
total_vtx_count: i32,
cmd_lists: [*]DrawList,
display_pos: [2]f32,
display_size: [2]f32,
framebuffer_scale: [2]f32,
};
pub const Font = *opaque {};
pub const Ident = u32;
pub const TextureIdent = *anyopaque;
pub const Wchar = u16;
pub const Key = enum(u32) {
none = 0,
tab = 512,
left_arrow,
right_arrow,
up_arrow,
down_arrow,
page_up,
page_down,
home,
end,
insert,
delete,
back_space,
space,
enter,
escape,
left_ctrl,
left_shift,
left_alt,
left_super,
right_ctrl,
right_shift,
right_alt,
right_super,
menu,
zero,
one,
two,
three,
four,
five,
six,
seven,
eight,
nine,
a,
b,
c,
d,
e,
f,
g,
h,
i,
j,
k,
l,
m,
n,
o,
p,
q,
r,
s,
t,
u,
v,
w,
x,
y,
z,
f1,
f2,
f3,
f4,
f5,
f6,
f7,
f8,
f9,
f10,
f11,
f12,
apostrophe,
comma,
minus,
period,
slash,
semicolon,
equal,
left_bracket,
back_slash,
right_bracket,
grave_accent,
caps_lock,
scroll_lock,
num_lock,
print_screen,
pause,
keypad_0,
keypad_1,
keypad_2,
keypad_3,
keypad_4,
keypad_5,
keypad_6,
keypad_7,
keypad_8,
keypad_9,
keypad_decimal,
keypad_divide,
keypad_multiply,
keypad_subtract,
keypad_add,
keypad_enter,
keypad_equal,
gamepad_start,
gamepad_back,
gamepad_faceleft,
gamepad_faceright,
gamepad_faceup,
gamepad_facedown,
gamepad_dpadleft,
gamepad_dpadright,
gamepad_dpadup,
gamepad_dpaddown,
gamepad_l1,
gamepad_r1,
gamepad_l2,
gamepad_r2,
gamepad_l3,
gamepad_r3,
gamepad_lstickleft,
gamepad_lstickright,
gamepad_lstickup,
gamepad_lstickdown,
gamepad_rstickleft,
gamepad_rstickright,
gamepad_rstickup,
gamepad_rstickdown,
mouse_left,
mouse_right,
mouse_middle,
mouse_x1,
mouse_x2,
mouse_wheel_x,
mouse_wheel_y,
mod_ctrl = 1 << 12,
mod_shift = 1 << 13,
mod_alt = 1 << 14,
mod_super = 1 << 15,
mod_mask_ = 0xf000,
};
//--------------------------------------------------------------------------------------------------
pub const WindowFlags = packed struct(u32) {
no_title_bar: bool = false,
no_resize: bool = false,
no_move: bool = false,
no_scrollbar: bool = false,
no_scroll_with_mouse: bool = false,
no_collapse: bool = false,
always_auto_resize: bool = false,
no_background: bool = false,
no_saved_settings: bool = false,
no_mouse_inputs: bool = false,
menu_bar: bool = false,
horizontal_scrollbar: bool = false,
no_focus_on_appearing: bool = false,
no_bring_to_front_on_focus: bool = false,
always_vertical_scrollbar: bool = false,
always_horizontal_scrollbar: bool = false,
always_use_window_padding: bool = false,
no_nav_inputs: bool = false,
no_nav_focus: bool = false,
unsaved_document: bool = false,
_padding: u12 = 0,
pub const no_nav = WindowFlags{ .no_nav_inputs = true, .no_nav_focus = true };
pub const no_decoration = WindowFlags{
.no_title_bar = true,
.no_resize = true,
.no_scrollbar = true,
.no_collapse = true,
};
pub const no_inputs = WindowFlags{
.no_mouse_inputs = true,
.no_nav_inputs = true,
.no_nav_focus = true,
};
};
//--------------------------------------------------------------------------------------------------
pub const SliderFlags = packed struct(u32) {
_reserved0: bool = false,
_reserved1: bool = false,
_reserved2: bool = false,
_reserved3: bool = false,
always_clamp: bool = false,
logarithmic: bool = false,
no_round_to_format: bool = false,
no_input: bool = false,
_padding: u24 = 0,
};
//--------------------------------------------------------------------------------------------------
pub const ButtonFlags = packed struct(u32) {
mouse_button_left: bool = false,
mouse_button_right: bool = false,
mouse_button_middle: bool = false,
_padding: u29 = 0,
};
//--------------------------------------------------------------------------------------------------
pub const Direction = enum(i32) {
none = -1,
left = 0,
right = 1,
up = 2,
down = 3,
};
//--------------------------------------------------------------------------------------------------
pub const DataType = enum(u32) { I8, U8, I16, U16, I32, U32, I64, U64, F32, F64 };
//--------------------------------------------------------------------------------------------------
pub const Condition = enum(u32) {
none = 0,
always = 1,
once = 2,
first_use_ever = 4,
appearing = 8,
};
//--------------------------------------------------------------------------------------------------
//
// Main
//
//--------------------------------------------------------------------------------------------------
/// `pub fn newFrame() void`
pub const newFrame = zguiNewFrame;
extern fn zguiNewFrame() void;
//--------------------------------------------------------------------------------------------------
/// `pub fn render() void`
pub const render = zguiRender;
extern fn zguiRender() void;
//--------------------------------------------------------------------------------------------------
/// `pub fn getDrawData() DrawData`
pub const getDrawData = zguiGetDrawData;
extern fn zguiGetDrawData() DrawData;
//--------------------------------------------------------------------------------------------------
//
// Demo, Debug, Information
//
//--------------------------------------------------------------------------------------------------
/// `pub fn showDemoWindow(popen: ?*bool) void`
pub const showDemoWindow = zguiShowDemoWindow;
extern fn zguiShowDemoWindow(popen: ?*bool) void;
//--------------------------------------------------------------------------------------------------
//
// Windows
//
//--------------------------------------------------------------------------------------------------
const SetNextWindowPos = struct {
x: f32,
y: f32,
cond: Condition = .none,
pivot_x: f32 = 0.0,
pivot_y: f32 = 0.0,
};
pub fn setNextWindowPos(args: SetNextWindowPos) void {
zguiSetNextWindowPos(args.x, args.y, args.cond, args.pivot_x, args.pivot_y);
}
extern fn zguiSetNextWindowPos(x: f32, y: f32, cond: Condition, pivot_x: f32, pivot_y: f32) void;
//--------------------------------------------------------------------------------------------------
const SetNextWindowSize = struct {
w: f32,
h: f32,
cond: Condition = .none,
};
pub fn setNextWindowSize(args: SetNextWindowSize) void {
zguiSetNextWindowSize(args.w, args.h, args.cond);
}
extern fn zguiSetNextWindowSize(w: f32, h: f32, cond: Condition) void;
//--------------------------------------------------------------------------------------------------
const SetNextWindowCollapsed = struct {
collapsed: bool,
cond: Condition = .none,
};
pub fn setNextWindowCollapsed(args: SetNextWindowCollapsed) void {
zguiSetNextWindowCollapsed(args.collapsed, args.cond);
}
extern fn zguiSetNextWindowCollapsed(collapsed: bool, cond: Condition) void;
//--------------------------------------------------------------------------------------------------
/// `pub fn setNextWindowFocus() void`
pub const setNextWindowFocus = zguiSetNextWindowFocus;
extern fn zguiSetNextWindowFocus() void;
//--------------------------------------------------------------------------------------------------
const SetNextWindowBgAlpha = struct {
alpha: f32,
};
pub fn setNextWindowBgAlpha(args: SetNextWindowBgAlpha) void {
zguiSetNextWindowBgAlpha(args.alpha);
}
extern fn zguiSetNextWindowBgAlpha(alpha: f32) void;
/// `pub fn setKeyboardFocusHere(offset: i32) void`
pub const setKeyboardFocusHere = zguiSetKeyboardFocusHere;
extern fn zguiSetKeyboardFocusHere(offset: i32) void;
//--------------------------------------------------------------------------------------------------
const Begin = struct {
popen: ?*bool = null,
flags: WindowFlags = .{},
};
pub fn begin(name: [:0]const u8, args: Begin) bool {
return zguiBegin(name, args.popen, args.flags);
}
/// `pub fn end() void`
pub const end = zguiEnd;
extern fn zguiBegin(name: [*:0]const u8, popen: ?*bool, flags: WindowFlags) bool;
extern fn zguiEnd() void;
//--------------------------------------------------------------------------------------------------
const BeginChild = struct {
w: f32 = 0.0,
h: f32 = 0.0,
border: bool = false,
flags: WindowFlags = .{},
};
pub fn beginChild(str_id: [:0]const u8, args: BeginChild) bool {
return zguiBeginChild(str_id, args.w, args.h, args.border, args.flags);
}
pub fn beginChildId(id: Ident, args: BeginChild) bool {
return zguiBeginChildId(id, args.w, args.h, args.border, args.flags);
}
/// `pub fn endChild() void`
pub const endChild = zguiEndChild;
extern fn zguiBeginChild(str_id: [*:0]const u8, w: f32, h: f32, border: bool, flags: WindowFlags) bool;
extern fn zguiBeginChildId(id: Ident, w: f32, h: f32, border: bool, flags: WindowFlags) bool;
extern fn zguiEndChild() void;
//--------------------------------------------------------------------------------------------------
/// `pub fn zguiGetScrollX() f32`
pub const getScrollX = zguiGetScrollX;
/// `pub fn zguiGetScrollY() f32`
pub const getScrollY = zguiGetScrollY;
/// `pub fn zguiSetScrollX(scroll_x: f32) void`
pub const setScrollX = zguiSetScrollX;
/// `pub fn zguiSetScrollY(scroll_y: f32) void`
pub const setScrollY = zguiSetScrollY;
/// `pub fn zguiGetScrollMaxX() f32`
pub const getScrollMaxX = zguiGetScrollMaxX;
/// `pub fn zguiGetScrollMaxY() f32`
pub const getScrollMaxY = zguiGetScrollMaxY;
extern fn zguiGetScrollX() f32;
extern fn zguiGetScrollY() f32;
extern fn zguiSetScrollX(scroll_x: f32) void;
extern fn zguiSetScrollY(scroll_y: f32) void;
extern fn zguiGetScrollMaxX() f32;
extern fn zguiGetScrollMaxY() f32;
const SetScrollHereX = struct {
center_x_ratio: f32 = 0.5,
};
const SetScrollHereY = struct {
center_y_ratio: f32 = 0.5,
};
pub fn setScrollHereX(args: SetScrollHereX) void {
zguiSetScrollHereX(args.center_x_ratio);
}
pub fn setScrollHereY(args: SetScrollHereY) void {
zguiSetScrollHereY(args.center_y_ratio);
}
const SetScrollFromPosX = struct {
local_x: f32,
center_x_ratio: f32 = 0.5,
};
const SetScrollFromPosY = struct {
local_y: f32,
center_y_ratio: f32 = 0.5,
};
pub fn setScrollFromPosX(args: SetScrollFromPosX) void {
zguiSetScrollFromPosX(args.local_x, args.center_x_ratio);
}
pub fn setScrollFromPosY(args: SetScrollFromPosY) void {
zguiSetScrollFromPosY(args.local_y, args.center_y_ratio);
}
extern fn zguiSetScrollHereX(center_x_ratio: f32) void;
extern fn zguiSetScrollHereY(center_y_ratio: f32) void;
extern fn zguiSetScrollFromPosX(local_x: f32, center_x_ratio: f32) void;
extern fn zguiSetScrollFromPosY(local_y: f32, center_y_ratio: f32) void;
//--------------------------------------------------------------------------------------------------
pub const FocusedFlags = packed struct(u32) {
child_windows: bool = false,
root_window: bool = false,
any_window: bool = false,
no_popup_hierarchy: bool = false,
_padding: u28 = 0,
pub const root_and_child_windows = FocusedFlags{ .root_window = true, .child_windows = true };
};
//--------------------------------------------------------------------------------------------------
pub const HoveredFlags = packed struct(u32) {
child_windows: bool = false,
root_window: bool = false,
any_window: bool = false,
no_popup_hierarchy: bool = false,
_reserved0: bool = false,
allow_when_blocked_by_popup: bool = false,
_reserved1: bool = false,
allow_when_blocked_by_active_item: bool = false,
allow_when_overlapped: bool = false,
allow_when_disabled: bool = false,
no_nav_override: bool = false,
_padding: u21 = 0,
pub const rect_only = HoveredFlags{
.allow_when_blocked_by_popup = true,
.allow_when_blocked_by_active_item = true,
.allow_when_overlapped = true,
};
pub const root_and_child_windows = HoveredFlags{ .root_window = true, .child_windows = true };
};
//--------------------------------------------------------------------------------------------------
/// `pub fn isWindowAppearing() bool`
pub const isWindowAppearing = zguiIsWindowAppearing;
/// `pub fn isWindowCollapsed() bool`
pub const isWindowCollapsed = zguiIsWindowCollapsed;
pub fn isWindowFocused(flags: FocusedFlags) bool {
return zguiIsWindowFocused(flags);
}
pub fn isWindowHovered(flags: HoveredFlags) bool {
return zguiIsWindowHovered(flags);
}
extern fn zguiIsWindowAppearing() bool;
extern fn zguiIsWindowCollapsed() bool;
extern fn zguiIsWindowFocused(flags: FocusedFlags) bool;
extern fn zguiIsWindowHovered(flags: HoveredFlags) bool;
//--------------------------------------------------------------------------------------------------
pub fn getWindowPos() [2]f32 {
var pos: [2]f32 = undefined;
zguiGetWindowPos(&pos);
return pos;
}
pub fn getWindowSize() [2]f32 {
var size: [2]f32 = undefined;
zguiGetWindowSize(&size);
return size;
}
pub fn getContentRegionAvail() [2]f32 {
var size: [2]f32 = undefined;
zguiGetContentRegionAvail(&size);
return size;
}
pub fn getContentRegionMax() [2]f32 {
var size: [2]f32 = undefined;
zguiGetContentRegionMax(&size);
return size;
}
pub fn getWindowContentRegionMin() [2]f32 {
var size: [2]f32 = undefined;
zguiGetWindowContentRegionMin(&size);
return size;
}
pub fn getWindowContentRegionMax() [2]f32 {
var size: [2]f32 = undefined;
zguiGetWindowContentRegionMax(&size);
return size;
}
/// `pub fn getWindowWidth() f32`
pub const getWindowWidth = zguiGetWindowWidth;
/// `pub fn getWindowHeight() f32`
pub const getWindowHeight = zguiGetWindowHeight;
extern fn zguiGetWindowPos(pos: *[2]f32) void;
extern fn zguiGetWindowSize(size: *[2]f32) void;
extern fn zguiGetWindowWidth() f32;
extern fn zguiGetWindowHeight() f32;
extern fn zguiGetContentRegionAvail(size: *[2]f32) void;
extern fn zguiGetContentRegionMax(size: *[2]f32) void;
extern fn zguiGetWindowContentRegionMin(size: *[2]f32) void;
extern fn zguiGetWindowContentRegionMax(size: *[2]f32) void;
//--------------------------------------------------------------------------------------------------
//
// Style
//
//--------------------------------------------------------------------------------------------------
pub const Style = extern struct {
alpha: f32,
disabled_alpha: f32,
window_padding: [2]f32,
window_rounding: f32,
window_border_size: f32,
window_min_size: [2]f32,
window_title_align: [2]f32,
window_menu_button_position: Direction,
child_rounding: f32,
child_border_size: f32,
popup_rounding: f32,
popup_border_size: f32,
frame_padding: [2]f32,
frame_rounding: f32,
frame_border_size: f32,
item_spacing: [2]f32,
item_inner_spacing: [2]f32,
cell_padding: [2]f32,
touch_extra_padding: [2]f32,
indent_spacing: f32,
columns_min_spacing: f32,
scrollbar_size: f32,
scrollbar_rounding: f32,
grab_min_size: f32,
grab_rounding: f32,
log_slider_deadzone: f32,
tab_rounding: f32,
tab_border_size: f32,
tab_min_width_for_close_button: f32,
color_button_position: Direction,
button_text_align: [2]f32,
selectable_text_align: [2]f32,
separator_text_border_size: f32,
separator_text_align: [2]f32,
separator_text_padding: [2]f32,
display_window_padding: [2]f32,
display_safe_area_padding: [2]f32,
mouse_cursor_scale: f32,
anti_aliased_lines: bool,
anti_aliased_lines_use_tex: bool,
anti_aliased_fill: bool,
curve_tessellation_tol: f32,
circle_tessellation_max_error: f32,
colors: [@typeInfo(StyleCol).Enum.fields.len][4]f32,
/// `pub fn init() Style`
pub const init = zguiStyle_Init;
extern fn zguiStyle_Init() Style;
/// `pub fn scaleAllSizes(style: *Style, scale_factor: f32) void`
pub const scaleAllSizes = zguiStyle_ScaleAllSizes;
extern fn zguiStyle_ScaleAllSizes(style: *Style, scale_factor: f32) void;
pub fn getColor(style: Style, idx: StyleCol) [4]f32 {
return style.colors[@enumToInt(idx)];
}
pub fn setColor(style: *Style, idx: StyleCol, color: [4]f32) void {
style.colors[@enumToInt(idx)] = color;
}
};
/// `pub fn getStyle() *Style`
pub const getStyle = zguiGetStyle;
extern fn zguiGetStyle() *Style;
//--------------------------------------------------------------------------------------------------
pub const StyleCol = enum(u32) {
text,
text_disabled,
window_bg,
child_bg,
popup_bg,
border,
border_shadow,
frame_bg,
frame_bg_hovered,
frame_bg_active,
title_bg,
title_bg_active,
title_bg_collapsed,
menu_bar_bg,
scrollbar_bg,
scrollbar_grab,
scrollbar_grab_hovered,
scrollbar_grab_active,
check_mark,
slider_grab,
slider_grab_active,
button,
button_hovered,
button_active,
header,
header_hovered,
header_active,
separator,
separator_hovered,
separator_active,
resize_grip,
resize_grip_hovered,
resize_grip_active,
tab,
tab_hovered,
tab_active,
tab_unfocused,
tab_unfocused_active,
plot_lines,
plot_lines_hovered,
plot_histogram,
plot_histogram_hovered,
table_header_bg,
table_border_strong,
table_border_light,
table_row_bg,
table_row_bg_alt,
text_selected_bg,
drag_drop_target,
nav_highlight,
nav_windowing_highlight,
nav_windowing_dim_bg,
modal_window_dim_bg,
};
const PushStyleColor4f = struct {
idx: StyleCol,
c: [4]f32,
};
pub fn pushStyleColor4f(args: PushStyleColor4f) void {
zguiPushStyleColor4f(args.idx, &args.c);
}
const PushStyleColor1u = struct {
idx: StyleCol,
c: u32,
};
pub fn pushStyleColor1u(args: PushStyleColor1u) void {
zguiPushStyleColor1u(args.idx, args.c);
}
const PopStyleColor = struct {
count: i32 = 1,
};
pub fn popStyleColor(args: PopStyleColor) void {
zguiPopStyleColor(args.count);
}
/// `fn pushTextWrapPos(wrap_pos_x: f32) void`
pub const pushTextWrapPos = zguiPushTextWrapPos;
/// `fn popTextWrapPos() void`
pub const popTextWrapPos = zguiPopTextWrapPos;
extern fn zguiPushStyleColor4f(idx: StyleCol, col: *const [4]f32) void;
extern fn zguiPushStyleColor1u(idx: StyleCol, col: u32) void;
extern fn zguiPopStyleColor(count: i32) void;
extern fn zguiPushTextWrapPos(wrap_pos_x: f32) void;
extern fn zguiPopTextWrapPos() void;
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
pub const StyleVar = enum(u32) {
alpha, // 1f
disabled_alpha, // 1f
window_padding, // 2f
window_rounding, // 1f
window_border_size, // 1f
window_min_size, // 2f
window_title_align, // 2f
child_rounding, // 1f
child_border_size, // 1f
popup_rounding, // 1f
popup_border_size, // 1f
frame_padding, // 2f
frame_rounding, // 1f
frame_border_size, // 1f
item_spacing, // 2f
item_inner_spacing, // 2f
indent_spacing, // 1f
cell_padding, // 2f
scrollbar_size, // 1f
scrollbar_rounding, // 1f
grab_min_size, // 1f
grab_rounding, // 1f
tab_rounding, // 1f
button_text_align, // 2f
selectable_text_align, // 2f
separator_text_border_size, // 1f
separator_text_align, // 2f
separator_text_padding, // 2f
};
const PushStyleVar1f = struct {
idx: StyleVar,
v: f32,
};
pub fn pushStyleVar1f(args: PushStyleVar1f) void {
zguiPushStyleVar1f(args.idx, args.v);
}
const PushStyleVar2f = struct {
idx: StyleVar,
v: [2]f32,
};
pub fn pushStyleVar2f(args: PushStyleVar2f) void {
zguiPushStyleVar2f(args.idx, &args.v);
}
const PopStyleVar = struct {
count: i32 = 1,
};
pub fn popStyleVar(args: PopStyleVar) void {
zguiPopStyleVar(args.count);
}
extern fn zguiPushStyleVar1f(idx: StyleVar, v: f32) void;
extern fn zguiPushStyleVar2f(idx: StyleVar, v: *const [2]f32) void;
extern fn zguiPopStyleVar(count: i32) void;
//--------------------------------------------------------------------------------------------------
/// `void pushItemWidth(item_width: f32) void`
pub const pushItemWidth = zguiPushItemWidth;
/// `void popItemWidth() void`
pub const popItemWidth = zguiPopItemWidth;
/// `void setNextItemWidth(item_width: f32) void`
pub const setNextItemWidth = zguiSetNextItemWidth;
/// `void setItemDefaultFocus() void`
pub const setItemDefaultFocus = zguiSetItemDefaultFocus;
extern fn zguiPushItemWidth(item_width: f32) void;
extern fn zguiPopItemWidth() void;
extern fn zguiSetNextItemWidth(item_width: f32) void;
extern fn zguiSetItemDefaultFocus() void;
//--------------------------------------------------------------------------------------------------
/// `pub fn getFont() Font`
pub const getFont = zguiGetFont;
extern fn zguiGetFont() Font;
/// `pub fn getFontSize() f32`
pub const getFontSize = zguiGetFontSize;
extern fn zguiGetFontSize() f32;
/// `void pushFont(font: Font) void`
pub const pushFont = zguiPushFont;
extern fn zguiPushFont(font: Font) void;
/// `void popFont() void`
pub const popFont = zguiPopFont;
extern fn zguiPopFont() void;
pub fn getFontTexUvWhitePixel() [2]f32 {
var uv: [2]f32 = undefined;
zguiGetFontTexUvWhitePixel(&uv);
return uv;
}
extern fn zguiGetFontTexUvWhitePixel(uv: *[2]f32) void;
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
const BeginDisabled = struct {
disabled: bool = true,
};
pub fn beginDisabled(args: BeginDisabled) void {
zguiBeginDisabled(args.disabled);
}
/// `pub fn endDisabled() void`
pub const endDisabled = zguiEndDisabled;
extern fn zguiBeginDisabled(disabled: bool) void;
extern fn zguiEndDisabled() void;
//--------------------------------------------------------------------------------------------------
//
// Cursor / Layout
//
//--------------------------------------------------------------------------------------------------
/// `pub fn separator() void`
pub const separator = zguiSeparator;
extern fn zguiSeparator() void;
pub fn separatorText(label: [:0]const u8) void {
zguiSeparatorText(label);
}
extern fn zguiSeparatorText(label: [*:0]const u8) void;
//--------------------------------------------------------------------------------------------------
const SameLine = struct {
offset_from_start_x: f32 = 0.0,
spacing: f32 = -1.0,
};
pub fn sameLine(args: SameLine) void {
zguiSameLine(args.offset_from_start_x, args.spacing);
}
extern fn zguiSameLine(offset_from_start_x: f32, spacing: f32) void;
//--------------------------------------------------------------------------------------------------
/// `pub fn newLine() void`
pub const newLine = zguiNewLine;
extern fn zguiNewLine() void;
//--------------------------------------------------------------------------------------------------
/// `pub fn spacing() void`
pub const spacing = zguiSpacing;
extern fn zguiSpacing() void;
//--------------------------------------------------------------------------------------------------
const Dummy = struct {
w: f32,
h: f32,
};
pub fn dummy(args: Dummy) void {
zguiDummy(args.w, args.h);
}
extern fn zguiDummy(w: f32, h: f32) void;
//--------------------------------------------------------------------------------------------------
const Indent = struct {
indent_w: f32 = 0.0,
};
pub fn indent(args: Indent) void {
zguiIndent(args.indent_w);
}
const Unindent = struct {
indent_w: f32 = 0.0,
};
pub fn unindent(args: Unindent) void {
zguiUnindent(args.indent_w);
}
extern fn zguiIndent(indent_w: f32) void;
extern fn zguiUnindent(indent_w: f32) void;
//--------------------------------------------------------------------------------------------------
/// `pub fn beginGroup() void`
pub const beginGroup = zguiBeginGroup;
extern fn zguiBeginGroup() void;
/// `pub fn endGroup() void`
pub const endGroup = zguiEndGroup;
extern fn zguiEndGroup() void;
//--------------------------------------------------------------------------------------------------
pub fn getCursorPos() [2]f32 {
var pos: [2]f32 = undefined;
zguiGetCursorPos(&pos);
return pos;
}
/// `pub fn getCursorPosX() f32`
pub const getCursorPosX = zguiGetCursorPosX;
/// `pub fn getCursorPosY() f32`
pub const getCursorPosY = zguiGetCursorPosY;
extern fn zguiGetCursorPos(pos: *[2]f32) void;
extern fn zguiGetCursorPosX() f32;
extern fn zguiGetCursorPosY() f32;
//--------------------------------------------------------------------------------------------------
pub fn setCursorPos(local_pos: [2]f32) void {
zguiSetCursorPos(local_pos[0], local_pos[1]);
}
/// `pub fn setCursorPosX(local_x: f32) void`
pub const setCursorPosX = zguiSetCursorPosX;
/// `pub fn setCursorPosY(local_y: f32) void`
pub const setCursorPosY = zguiSetCursorPosY;
extern fn zguiSetCursorPos(local_x: f32, local_y: f32) void;
extern fn zguiSetCursorPosX(local_x: f32) void;
extern fn zguiSetCursorPosY(local_y: f32) void;
//--------------------------------------------------------------------------------------------------
pub fn getCursorStartPos() [2]f32 {
var pos: [2]f32 = undefined;
zguiGetCursorStartPos(&pos);
return pos;
}
pub fn getCursorScreenPos() [2]f32 {
var pos: [2]f32 = undefined;
zguiGetCursorScreenPos(&pos);
return pos;
}
pub fn setCursorScreenPos(screen_pos: [2]f32) void {
zguiSetCursorPos(screen_pos[0], screen_pos[1]);
}
extern fn zguiGetCursorStartPos(pos: *[2]f32) void;
extern fn zguiGetCursorScreenPos(pos: *[2]f32) void;
extern fn zguiSetCursorScreenPos(screen_x: f32, screen_y: f32) void;
//--------------------------------------------------------------------------------------------------
pub const Cursor = enum(i32) {
none = -1,
arrow = 0,
text_input,
resize_all,
resize_ns,
resize_ew,
resize_nesw,
resize_nwse,
hand,
not_allowed,
count,
};
/// `pub fn getMouseCursor() MouseCursor`
pub const getMouseCursor = zguiGetMouseCursor;
/// `pub fn setMouseCursor(cursor: MouseCursor) void`
pub const setMouseCursor = zguiSetMouseCursor;
extern fn zguiGetMouseCursor() Cursor;
extern fn zguiSetMouseCursor(cursor: Cursor) void;
//--------------------------------------------------------------------------------------------------
/// `pub fn alignTextToFramePadding() void`
pub const alignTextToFramePadding = zguiAlignTextToFramePadding;
/// `pub fn getTextLineHeight() f32`
pub const getTextLineHeight = zguiGetTextLineHeight;
/// `pub fn getTextLineHeightWithSpacing() f32`
pub const getTextLineHeightWithSpacing = zguiGetTextLineHeightWithSpacing;
/// `pub fn getFrameHeight() f32`
pub const getFrameHeight = zguiGetFrameHeight;
/// `pub fn getFrameHeightWithSpacing() f32`
pub const getFrameHeightWithSpacing = zguiGetFrameHeightWithSpacing;
extern fn zguiAlignTextToFramePadding() void;
extern fn zguiGetTextLineHeight() f32;
extern fn zguiGetTextLineHeightWithSpacing() f32;
extern fn zguiGetFrameHeight() f32;
extern fn zguiGetFrameHeightWithSpacing() f32;
//--------------------------------------------------------------------------------------------------
pub fn getItemRectMax() [2]f32 {
var rect: [2]f32 = undefined;
zguiGetItemRectMax(&rect);
return rect;
}
pub fn getItemRectMin() [2]f32 {
var rect: [2]f32 = undefined;
zguiGetItemRectMin(&rect);
return rect;
}
extern fn zguiGetItemRectMax(rect: *[2]f32) void;
extern fn zguiGetItemRectMin(rect: *[2]f32) void;
//--------------------------------------------------------------------------------------------------
//
// ID stack/scopes
//
//--------------------------------------------------------------------------------------------------
pub fn pushStrId(str_id: []const u8) void {
zguiPushStrId(str_id.ptr, str_id.ptr + str_id.len);
}
pub fn pushStrIdZ(str_id: [:0]const u8) void {
zguiPushStrIdZ(str_id);
}
pub fn pushPtrId(ptr_id: *const anyopaque) void {
zguiPushPtrId(ptr_id);
}
pub fn pushIntId(int_id: i32) void {
zguiPushIntId(int_id);
}
extern fn zguiPushStrId(str_id_begin: [*]const u8, str_id_end: [*]const u8) void;
extern fn zguiPushStrIdZ(str_id: [*:0]const u8) void;
extern fn zguiPushPtrId(ptr_id: *const anyopaque) void;
extern fn zguiPushIntId(int_id: i32) void;
//--------------------------------------------------------------------------------------------------
/// `pub fn popId() void`
pub const popId = zguiPopId;
extern fn zguiPopId() void;
//--------------------------------------------------------------------------------------------------
pub fn getStrId(str_id: []const u8) Ident {
return zguiGetStrId(str_id.ptr, str_id.ptr + str_id.len);
}
pub fn getStrIdZ(str_id: [:0]const u8) Ident {
return zguiGetStrIdZ(str_id);
}
pub fn getPtrId(ptr_id: *const anyopaque) Ident {
return zguiGetPtrId(ptr_id);
}
extern fn zguiGetStrId(str_id_begin: [*]const u8, str_id_end: [*]const u8) Ident;
extern fn zguiGetStrIdZ(str_id: [*:0]const u8) Ident;
extern fn zguiGetPtrId(ptr_id: *const anyopaque) Ident;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Text
//
//--------------------------------------------------------------------------------------------------
pub fn textUnformatted(txt: []const u8) void {
zguiTextUnformatted(txt.ptr, txt.ptr + txt.len);
}
pub fn textUnformattedColored(color: [4]f32, txt: []const u8) void {
pushStyleColor4f(.{ .idx = .text, .c = color });
textUnformatted(txt);
popStyleColor(.{});
}
//--------------------------------------------------------------------------------------------------
pub fn text(comptime fmt: []const u8, args: anytype) void {
const result = format(fmt, args);
zguiTextUnformatted(result.ptr, result.ptr + result.len);
}
pub fn textColored(color: [4]f32, comptime fmt: []const u8, args: anytype) void {
pushStyleColor4f(.{ .idx = .text, .c = color });
text(fmt, args);
popStyleColor(.{});
}
extern fn zguiTextUnformatted(txt: [*]const u8, txt_end: [*]const u8) void;
//--------------------------------------------------------------------------------------------------
pub fn textDisabled(comptime fmt: []const u8, args: anytype) void {
zguiTextDisabled("%s", formatZ(fmt, args).ptr);
}
extern fn zguiTextDisabled(fmt: [*:0]const u8, ...) void;
//--------------------------------------------------------------------------------------------------
pub fn textWrapped(comptime fmt: []const u8, args: anytype) void {
zguiTextWrapped("%s", formatZ(fmt, args).ptr);
}
extern fn zguiTextWrapped(fmt: [*:0]const u8, ...) void;
//--------------------------------------------------------------------------------------------------
pub fn bulletText(comptime fmt: []const u8, args: anytype) void {
bullet();
text(fmt, args);
}
//--------------------------------------------------------------------------------------------------
pub fn labelText(label: [:0]const u8, comptime fmt: []const u8, args: anytype) void {
zguiLabelText(label, "%s", formatZ(fmt, args).ptr);
}
extern fn zguiLabelText(label: [*:0]const u8, fmt: [*:0]const u8, ...) void;
//--------------------------------------------------------------------------------------------------
const CalcTextSize = struct {
hide_text_after_double_hash: bool = false,
wrap_width: f32 = -1.0,
};
pub fn calcTextSize(txt: []const u8, args: CalcTextSize) [2]f32 {
var w: f32 = undefined;
var h: f32 = undefined;
zguiCalcTextSize(
txt.ptr,
txt.ptr + txt.len,
args.hide_text_after_double_hash,
args.wrap_width,
&w,
&h,
);
return .{ w, h };
}
extern fn zguiCalcTextSize(
txt: [*]const u8,
txt_end: [*]const u8,
hide_text_after_double_hash: bool,
wrap_width: f32,
out_w: *f32,
out_h: *f32,
) void;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Main
//
//--------------------------------------------------------------------------------------------------
const Button = struct {
w: f32 = 0.0,
h: f32 = 0.0,
};
pub fn button(label: [:0]const u8, args: Button) bool {
return zguiButton(label, args.w, args.h);
}
extern fn zguiButton(label: [*:0]const u8, w: f32, h: f32) bool;
//--------------------------------------------------------------------------------------------------
pub fn smallButton(label: [:0]const u8) bool {
return zguiSmallButton(label);
}
extern fn zguiSmallButton(label: [*:0]const u8) bool;
//--------------------------------------------------------------------------------------------------
const InvisibleButton = struct {
w: f32,
h: f32,
flags: ButtonFlags = .{},
};
pub fn invisibleButton(str_id: [:0]const u8, args: InvisibleButton) bool {
return zguiInvisibleButton(str_id, args.w, args.h, args.flags);
}
extern fn zguiInvisibleButton(str_id: [*:0]const u8, w: f32, h: f32, flags: ButtonFlags) bool;
//--------------------------------------------------------------------------------------------------
const ArrowButton = struct {
dir: Direction,
};
pub fn arrowButton(label: [:0]const u8, args: ArrowButton) bool {
return zguiArrowButton(label, args.dir);
}
extern fn zguiArrowButton(label: [*:0]const u8, dir: Direction) bool;
//--------------------------------------------------------------------------------------------------
const Image = struct {
w: f32,
h: f32,
uv0: [2]f32 = .{ 0.0, 0.0 },
uv1: [2]f32 = .{ 1.0, 1.0 },
tint_col: [4]f32 = .{ 1.0, 1.0, 1.0, 1.0 },
border_col: [4]f32 = .{ 0.0, 0.0, 0.0, 0.0 },
};
pub fn image(user_texture_id: TextureIdent, args: Image) void {
zguiImage(user_texture_id, args.w, args.h, &args.uv0, &args.uv1, &args.tint_col, &args.border_col);
}
extern fn zguiImage(
user_texture_id: TextureIdent,
w: f32,
h: f32,
uv0: *const [2]f32,
uv1: *const [2]f32,
tint_col: *const [4]f32,
border_col: *const [4]f32,
) void;
//--------------------------------------------------------------------------------------------------
const ImageButton = struct {
w: f32,
h: f32,
uv0: [2]f32 = .{ 0.0, 0.0 },
uv1: [2]f32 = .{ 1.0, 1.0 },
bg_col: [4]f32 = .{ 0.0, 0.0, 0.0, 0.0 },
tint_col: [4]f32 = .{ 1.0, 1.0, 1.0, 1.0 },
};
pub fn imageButton(str_id: [:0]const u8, user_texture_id: TextureIdent, args: ImageButton) bool {
return zguiImageButton(
str_id,
user_texture_id,
args.w,
args.h,
&args.uv0,
&args.uv1,
&args.bg_col,
&args.tint_col,
);
}
extern fn zguiImageButton(
str_id: [*:0]const u8,
user_texture_id: TextureIdent,
w: f32,
h: f32,
uv0: *const [2]f32,
uv1: *const [2]f32,
bg_col: *const [4]f32,
tint_col: *const [4]f32,
) bool;
//--------------------------------------------------------------------------------------------------
/// `pub fn bullet() void`
pub const bullet = zguiBullet;
extern fn zguiBullet() void;
//--------------------------------------------------------------------------------------------------
const RadioButton = struct {
active: bool,
};
pub fn radioButton(label: [:0]const u8, args: RadioButton) bool {
return zguiRadioButton(label, args.active);
}
extern fn zguiRadioButton(label: [*:0]const u8, active: bool) bool;
//--------------------------------------------------------------------------------------------------
const RadioButtonStatePtr = struct {
v: *i32,
v_button: i32,
};
pub fn radioButtonStatePtr(label: [:0]const u8, args: RadioButtonStatePtr) bool {
return zguiRadioButtonStatePtr(label, args.v, args.v_button);
}
extern fn zguiRadioButtonStatePtr(label: [*:0]const u8, v: *i32, v_button: i32) bool;
//--------------------------------------------------------------------------------------------------
const Checkbox = struct {
v: *bool,
};
pub fn checkbox(label: [:0]const u8, args: Checkbox) bool {
return zguiCheckbox(label, args.v);
}
extern fn zguiCheckbox(label: [*:0]const u8, v: *bool) bool;
//--------------------------------------------------------------------------------------------------
const CheckboxBits = struct {
bits: *u32,
bits_value: u32,
};
pub fn checkboxBits(label: [:0]const u8, args: CheckboxBits) bool {
return zguiCheckboxBits(label, args.bits, args.bits_value);
}
extern fn zguiCheckboxBits(label: [*:0]const u8, bits: *u32, bits_value: u32) bool;
//--------------------------------------------------------------------------------------------------
const ProgressBar = struct {
fraction: f32,
w: f32 = -f32_min,
h: f32 = 0.0,
overlay: ?[:0]const u8 = null,
};
pub fn progressBar(args: ProgressBar) void {
zguiProgressBar(args.fraction, args.w, args.h, if (args.overlay) |o| o else null);
}
extern fn zguiProgressBar(fraction: f32, w: f32, h: f32, overlay: ?[*:0]const u8) void;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Combo Box
//
//--------------------------------------------------------------------------------------------------
const Combo = struct {
current_item: *i32,
items_separated_by_zeros: [:0]const u8,
popup_max_height_in_items: i32 = -1,
};
pub fn combo(label: [:0]const u8, args: Combo) bool {
return zguiCombo(
label,
args.current_item,
args.items_separated_by_zeros,
args.popup_max_height_in_items,
);
}
extern fn zguiCombo(
label: [*:0]const u8,
current_item: *i32,
items_separated_by_zeros: [*:0]const u8,
popup_max_height_in_items: i32,
) bool;
//--------------------------------------------------------------------------------------------------
pub const ComboFlags = packed struct(u32) {
popup_align_left: bool = false,
height_small: bool = false,
height_regular: bool = false,
height_large: bool = false,
height_largest: bool = false,
no_arrow_button: bool = false,
no_preview: bool = false,
_padding: u25 = 0,
};
//--------------------------------------------------------------------------------------------------
const BeginCombo = struct {
preview_value: [*:0]const u8,
flags: ComboFlags = .{},
};
pub fn beginCombo(label: [:0]const u8, args: BeginCombo) bool {
return zguiBeginCombo(label, args.preview_value, args.flags);
}
extern fn zguiBeginCombo(label: [*:0]const u8, preview_value: ?[*:0]const u8, flags: ComboFlags) bool;
//--------------------------------------------------------------------------------------------------
/// `pub fn endCombo() void`
pub const endCombo = zguiEndCombo;
extern fn zguiEndCombo() void;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Drag Sliders
//
//--------------------------------------------------------------------------------------------------
fn DragFloatGen(comptime T: type) type {
return struct {
v: *T,
speed: f32 = 1.0,
min: f32 = 0.0,
max: f32 = 0.0,
cfmt: [:0]const u8 = "%.3f",
flags: SliderFlags = .{},
};
}
//--------------------------------------------------------------------------------------------------
const DragFloat = DragFloatGen(f32);
pub fn dragFloat(label: [:0]const u8, args: DragFloat) bool {
return zguiDragFloat(
label,
args.v,
args.speed,
args.min,
args.max,
args.cfmt,
args.flags,
);
}
extern fn zguiDragFloat(
label: [*:0]const u8,
v: *f32,
speed: f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragFloat2 = DragFloatGen([2]f32);
pub fn dragFloat2(label: [:0]const u8, args: DragFloat2) bool {
return zguiDragFloat2(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragFloat2(
label: [*:0]const u8,
v: *[2]f32,
speed: f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragFloat3 = DragFloatGen([3]f32);
pub fn dragFloat3(label: [:0]const u8, args: DragFloat3) bool {
return zguiDragFloat3(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragFloat3(
label: [*:0]const u8,
v: *[3]f32,
speed: f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragFloat4 = DragFloatGen([4]f32);
pub fn dragFloat4(label: [:0]const u8, args: DragFloat4) bool {
return zguiDragFloat4(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragFloat4(
label: [*:0]const u8,
v: *[4]f32,
speed: f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragFloatRange2 = struct {
current_min: *f32,
current_max: *f32,
speed: f32 = 1.0,
min: f32 = 0.0,
max: f32 = 0.0,
cfmt: [:0]const u8 = "%.3f",
cfmt_max: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
pub fn dragFloatRange2(label: [:0]const u8, args: DragFloatRange2) bool {
return zguiDragFloatRange2(
label,
args.current_min,
args.current_max,
args.speed,
args.min,
args.max,
args.cfmt,
if (args.cfmt_max) |fm| fm else null,
args.flags,
);
}
extern fn zguiDragFloatRange2(
label: [*:0]const u8,
current_min: *f32,
current_max: *f32,
speed: f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
cfmt_max: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn DragIntGen(comptime T: type) type {
return struct {
v: *T,
speed: f32 = 1.0,
min: i32 = 0.0,
max: i32 = 0.0,
cfmt: [:0]const u8 = "%d",
flags: SliderFlags = .{},
};
}
//--------------------------------------------------------------------------------------------------
const DragInt = DragIntGen(i32);
pub fn dragInt(label: [:0]const u8, args: DragInt) bool {
return zguiDragInt(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragInt(
label: [*:0]const u8,
v: *i32,
speed: f32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragInt2 = DragIntGen([2]i32);
pub fn dragInt2(label: [:0]const u8, args: DragInt2) bool {
return zguiDragInt2(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragInt2(
label: [*:0]const u8,
v: *[2]i32,
speed: f32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragInt3 = DragIntGen([3]i32);
pub fn dragInt3(label: [:0]const u8, args: DragInt3) bool {
return zguiDragInt3(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragInt3(
label: [*:0]const u8,
v: *[3]i32,
speed: f32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragInt4 = DragIntGen([4]i32);
pub fn dragInt4(label: [:0]const u8, args: DragInt4) bool {
return zguiDragInt4(label, args.v, args.speed, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiDragInt4(
label: [*:0]const u8,
v: *[4]i32,
speed: f32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const DragIntRange2 = struct {
current_min: *i32,
current_max: *i32,
speed: f32 = 1.0,
min: i32 = 0.0,
max: i32 = 0.0,
cfmt: [:0]const u8 = "%d",
cfmt_max: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
pub fn dragIntRange2(label: [:0]const u8, args: DragIntRange2) bool {
return zguiDragIntRange2(
label,
args.current_min,
args.current_max,
args.speed,
args.min,
args.max,
args.cfmt,
if (args.cfmt_max) |fm| fm else null,
args.flags,
);
}
extern fn zguiDragIntRange2(
label: [*:0]const u8,
current_min: *i32,
current_max: *i32,
speed: f32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
cfmt_max: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn DragScalarGen(comptime T: type) type {
return struct {
v: *T,
speed: f32 = 1.0,
min: ?T = null,
max: ?T = null,
cfmt: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
}
pub fn dragScalar(label: [:0]const u8, comptime T: type, args: DragScalarGen(T)) bool {
return zguiDragScalar(
label,
typeToDataTypeEnum(T),
args.v,
args.speed,
if (args.min) |vm| &vm else null,
if (args.max) |vm| &vm else null,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiDragScalar(
label: [*:0]const u8,
data_type: DataType,
pdata: *anyopaque,
speed: f32,
pmin: ?*const anyopaque,
pmax: ?*const anyopaque,
cfmt: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn DragScalarNGen(comptime T: type) type {
const ScalarType = @typeInfo(T).Array.child;
return struct {
v: *T,
speed: f32 = 1.0,
min: ?ScalarType = null,
max: ?ScalarType = null,
cfmt: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
}
pub fn dragScalarN(label: [:0]const u8, comptime T: type, args: DragScalarNGen(T)) bool {
const ScalarType = @typeInfo(T).Array.child;
const components = @typeInfo(T).Array.len;
return zguiDragScalarN(
label,
typeToDataTypeEnum(ScalarType),
args.v,
components,
args.speed,
if (args.min) |vm| &vm else null,
if (args.max) |vm| &vm else null,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiDragScalarN(
label: [*:0]const u8,
data_type: DataType,
pdata: *anyopaque,
components: i32,
speed: f32,
pmin: ?*const anyopaque,
pmax: ?*const anyopaque,
cfmt: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Regular Sliders
//
//--------------------------------------------------------------------------------------------------
fn SliderFloatGen(comptime T: type) type {
return struct {
v: *T,
min: f32,
max: f32,
cfmt: [:0]const u8 = "%.3f",
flags: SliderFlags = .{},
};
}
//--------------------------------------------------------------------------------------------------
const SliderFloat = SliderFloatGen(f32);
pub fn sliderFloat(label: [:0]const u8, args: SliderFloat) bool {
return zguiSliderFloat(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderFloat(
label: [*:0]const u8,
v: *f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderFloat2 = SliderFloatGen([2]f32);
pub fn sliderFloat2(label: [:0]const u8, args: SliderFloat2) bool {
return zguiSliderFloat2(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderFloat2(
label: [*:0]const u8,
v: *[2]f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderFloat3 = SliderFloatGen([3]f32);
pub fn sliderFloat3(label: [:0]const u8, args: SliderFloat3) bool {
return zguiSliderFloat3(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderFloat3(
label: [*:0]const u8,
v: *[3]f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderFloat4 = SliderFloatGen([4]f32);
pub fn sliderFloat4(label: [:0]const u8, args: SliderFloat4) bool {
return zguiSliderFloat4(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderFloat4(
label: [*:0]const u8,
v: *[4]f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn SliderIntGen(comptime T: type) type {
return struct {
v: *T,
min: i32,
max: i32,
cfmt: [:0]const u8 = "%d",
flags: SliderFlags = .{},
};
}
//--------------------------------------------------------------------------------------------------
const SliderInt = SliderIntGen(i32);
pub fn sliderInt(label: [:0]const u8, args: SliderInt) bool {
return zguiSliderInt(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderInt(
label: [*:0]const u8,
v: *i32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderInt2 = SliderIntGen([2]i32);
pub fn sliderInt2(label: [:0]const u8, args: SliderInt2) bool {
return zguiSliderInt2(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderInt2(
label: [*:0]const u8,
v: *[2]i32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderInt3 = SliderIntGen([3]i32);
pub fn sliderInt3(label: [:0]const u8, args: SliderInt3) bool {
return zguiSliderInt3(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderInt3(
label: [*:0]const u8,
v: *[3]i32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderInt4 = SliderIntGen([4]i32);
pub fn sliderInt4(label: [:0]const u8, args: SliderInt4) bool {
return zguiSliderInt4(label, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiSliderInt4(
label: [*:0]const u8,
v: *[4]i32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn SliderScalarGen(comptime T: type) type {
return struct {
v: *T,
min: T,
max: T,
cfmt: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
}
pub fn sliderScalar(label: [:0]const u8, comptime T: type, args: SliderScalarGen(T)) bool {
return zguiSliderScalar(
label,
typeToDataTypeEnum(T),
args.v,
&args.min,
&args.max,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiSliderScalar(
label: [*:0]const u8,
data_type: DataType,
pdata: *anyopaque,
pmin: *const anyopaque,
pmax: *const anyopaque,
cfmt: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn SliderScalarNGen(comptime T: type) type {
const ScalarType = @typeInfo(T).Array.child;
return struct {
v: *T,
min: ScalarType,
max: ScalarType,
cfmt: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
}
pub fn sliderScalarN(label: [:0]const u8, comptime T: type, args: SliderScalarNGen(T)) bool {
const ScalarType = @typeInfo(T).Array.child;
const components = @typeInfo(T).Array.len;
return zguiSliderScalarN(
label,
typeToDataTypeEnum(ScalarType),
args.v,
components,
&args.min,
&args.max,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiSliderScalarN(
label: [*:0]const u8,
data_type: DataType,
pdata: *anyopaque,
components: i32,
pmin: *const anyopaque,
pmax: *const anyopaque,
cfmt: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const VSliderFloat = struct {
w: f32,
h: f32,
v: *f32,
min: f32,
max: f32,
cfmt: [:0]const u8 = "%.3f",
flags: SliderFlags = .{},
};
pub fn vsliderFloat(label: [:0]const u8, args: VSliderFloat) bool {
return zguiVSliderFloat(label, args.w, args.h, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiVSliderFloat(
label: [*:0]const u8,
w: f32,
h: f32,
v: *f32,
min: f32,
max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const VSliderInt = struct {
w: f32,
h: f32,
v: *i32,
min: i32,
max: i32,
cfmt: [:0]const u8 = "%d",
flags: SliderFlags = .{},
};
pub fn vsliderInt(label: [:0]const u8, args: VSliderInt) bool {
return zguiVSliderInt(label, args.w, args.h, args.v, args.min, args.max, args.cfmt, args.flags);
}
extern fn zguiVSliderInt(
label: [*:0]const u8,
w: f32,
h: f32,
v: *i32,
min: i32,
max: i32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn VSliderScalarGen(comptime T: type) type {
return struct {
w: f32,
h: f32,
v: *T,
min: T,
max: T,
cfmt: ?[:0]const u8 = null,
flags: SliderFlags = .{},
};
}
pub fn vsliderScalar(label: [:0]const u8, comptime T: type, args: VSliderScalarGen(T)) bool {
return zguiVSliderScalar(
label,
args.w,
args.h,
typeToDataTypeEnum(T),
args.v,
&args.min,
&args.max,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiVSliderScalar(
label: [*:0]const u8,
w: f32,
h: f32,
data_type: DataType,
pdata: *anyopaque,
pmin: *const anyopaque,
pmax: *const anyopaque,
cfmt: ?[*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const SliderAngle = struct {
vrad: *f32,
deg_min: f32 = -360.0,
deg_max: f32 = 360.0,
cfmt: [:0]const u8 = "%.0f deg",
flags: SliderFlags = .{},
};
pub fn sliderAngle(label: [:0]const u8, args: SliderAngle) bool {
return zguiSliderAngle(
label,
args.vrad,
args.deg_min,
args.deg_max,
args.cfmt,
args.flags,
);
}
extern fn zguiSliderAngle(
label: [*:0]const u8,
vrad: *f32,
deg_min: f32,
deg_max: f32,
cfmt: [*:0]const u8,
flags: SliderFlags,
) bool;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Input with Keyboard
//
//--------------------------------------------------------------------------------------------------
pub const InputTextFlags = packed struct(u32) {
chars_decimal: bool = false,
chars_hexadecimal: bool = false,
chars_uppercase: bool = false,
chars_no_blank: bool = false,
auto_select_all: bool = false,
enter_returns_true: bool = false,
callback_completion: bool = false,
callback_history: bool = false,
callback_always: bool = false,
callback_char_filter: bool = false,
allow_tab_input: bool = false,
ctrl_enter_for_new_line: bool = false,
no_horizontal_scroll: bool = false,
always_overwrite: bool = false,
read_only: bool = false,
password: bool = false,
no_undo_redo: bool = false,
chars_scientific: bool = false,
callback_resize: bool = false,
callback_edit: bool = false,
_padding: u12 = 0,
};
//--------------------------------------------------------------------------------------------------
pub const InputTextCallbackData = extern struct {
ctx: *Context,
event_flag: InputTextFlags,
flags: InputTextFlags,
user_data: ?*anyopaque,
event_char: Wchar,
event_key: Key,
buf: [*]u8,
buf_text_len: i32,
buf_size: i32,
buf_dirty: bool,
cursor_pos: i32,
selection_start: i32,
selection_end: i32,
/// `pub fn init() InputTextCallbackData`
pub const init = zguiInputTextCallbackData_Init;
/// `pub fn deleteChars(data: *InputTextCallbackData, pos: i32, bytes_count: i32) void`
pub const deleteChars = zguiInputTextCallbackData_DeleteChars;
pub fn insertChars(data: *InputTextCallbackData, pos: i32, txt: []const u8) void {
zguiInputTextCallbackData_InsertChars(data, pos, txt.ptr, txt.ptr + txt.len);
}
pub fn selectAll(data: *InputTextCallbackData) void {
data.selection_start = 0;
data.selection_end = data.buf_text_len;
}
pub fn clearSelection(data: *InputTextCallbackData) void {
data.selection_start = data.buf_text_len;
data.selection_end = data.buf_text_len;
}
pub fn hasSelection(data: InputTextCallbackData) bool {
return data.selection_start != data.selection_end;
}
extern fn zguiInputTextCallbackData_Init() InputTextCallbackData;
extern fn zguiInputTextCallbackData_DeleteChars(
data: *InputTextCallbackData,
pos: i32,
bytes_count: i32,
) void;
extern fn zguiInputTextCallbackData_InsertChars(
data: *InputTextCallbackData,
pos: i32,
text: [*]const u8,
text_end: [*]const u8,
) void;
};
pub const InputTextCallback = *const fn (data: *InputTextCallbackData) i32;
//--------------------------------------------------------------------------------------------------
const InputText = struct {
buf: []u8,
flags: InputTextFlags = .{},
callback: ?InputTextCallback = null,
user_data: ?*anyopaque = null,
};
pub fn inputText(label: [:0]const u8, args: InputText) bool {
return zguiInputText(
label,
args.buf.ptr,
args.buf.len,
args.flags,
if (args.callback) |cb| cb else null,
args.user_data,
);
}
extern fn zguiInputText(
label: [*:0]const u8,
buf: [*]u8,
buf_size: usize,
flags: InputTextFlags,
callback: ?*const anyopaque,
user_data: ?*anyopaque,
) bool;
//--------------------------------------------------------------------------------------------------
const InputTextMultiline = struct {
buf: []u8,
w: f32 = 0.0,
h: f32 = 0.0,
flags: InputTextFlags = .{},
callback: ?InputTextCallback = null,
user_data: ?*anyopaque = null,
};
pub fn inputTextMultiline(label: [:0]const u8, args: InputTextMultiline) bool {
return zguiInputTextMultiline(
label,
args.buf.ptr,
args.buf.len,
args.w,
args.h,
args.flags,
if (args.callback) |cb| cb else null,
args.user_data,
);
}
extern fn zguiInputTextMultiline(
label: [*:0]const u8,
buf: [*]u8,
buf_size: usize,
w: f32,
h: f32,
flags: InputTextFlags,
callback: ?*const anyopaque,
user_data: ?*anyopaque,
) bool;
//--------------------------------------------------------------------------------------------------
const InputTextWithHint = struct {
hint: [:0]const u8,
buf: []u8,
flags: InputTextFlags = .{},
callback: ?InputTextCallback = null,
user_data: ?*anyopaque = null,
};
pub fn inputTextWithHint(label: [:0]const u8, args: InputTextWithHint) bool {
return zguiInputTextWithHint(
label,
args.hint,
args.buf.ptr,
args.buf.len,
args.flags,
if (args.callback) |cb| cb else null,
args.user_data,
);
}
extern fn zguiInputTextWithHint(
label: [*:0]const u8,
hint: [*:0]const u8,
buf: [*]u8,
buf_size: usize,
flags: InputTextFlags,
callback: ?*const anyopaque,
user_data: ?*anyopaque,
) bool;
//--------------------------------------------------------------------------------------------------
const InputFloat = struct {
v: *f32,
step: f32 = 0.0,
step_fast: f32 = 0.0,
cfmt: [:0]const u8 = "%.3f",
flags: InputTextFlags = .{},
};
pub fn inputFloat(label: [:0]const u8, args: InputFloat) bool {
return zguiInputFloat(
label,
args.v,
args.step,
args.step_fast,
args.cfmt,
args.flags,
);
}
extern fn zguiInputFloat(
label: [*:0]const u8,
v: *f32,
step: f32,
step_fast: f32,
cfmt: [*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn InputFloatGen(comptime T: type) type {
return struct {
v: *T,
cfmt: [:0]const u8 = "%.3f",
flags: InputTextFlags = .{},
};
}
//--------------------------------------------------------------------------------------------------
const InputFloat2 = InputFloatGen([2]f32);
pub fn inputFloat2(label: [:0]const u8, args: InputFloat2) bool {
return zguiInputFloat2(label, args.v, args.cfmt, args.flags);
}
extern fn zguiInputFloat2(
label: [*:0]const u8,
v: *[2]f32,
cfmt: [*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const InputFloat3 = InputFloatGen([3]f32);
pub fn inputFloat3(label: [:0]const u8, args: InputFloat3) bool {
return zguiInputFloat3(label, args.v, args.cfmt, args.flags);
}
extern fn zguiInputFloat3(
label: [*:0]const u8,
v: *[3]f32,
cfmt: [*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const InputFloat4 = InputFloatGen([4]f32);
pub fn inputFloat4(label: [:0]const u8, args: InputFloat4) bool {
return zguiInputFloat4(label, args.v, args.cfmt, args.flags);
}
extern fn zguiInputFloat4(
label: [*:0]const u8,
v: *[4]f32,
cfmt: [*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
const InputInt = struct {
v: *i32,
step: i32 = 1,
step_fast: i32 = 100,
flags: InputTextFlags = .{},
};
pub fn inputInt(label: [:0]const u8, args: InputInt) bool {
return zguiInputInt(label, args.v, args.step, args.step_fast, args.flags);
}
extern fn zguiInputInt(
label: [*:0]const u8,
v: *i32,
step: i32,
step_fast: i32,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn InputIntGen(comptime T: type) type {
return struct {
v: *T,
flags: InputTextFlags = .{},
};
}
//--------------------------------------------------------------------------------------------------
const InputInt2 = InputIntGen([2]i32);
pub fn inputInt2(label: [:0]const u8, args: InputInt2) bool {
return zguiInputInt2(label, args.v, args.flags);
}
extern fn zguiInputInt2(label: [*:0]const u8, v: *[2]i32, flags: InputTextFlags) bool;
//--------------------------------------------------------------------------------------------------
const InputInt3 = InputIntGen([3]i32);
pub fn inputInt3(label: [:0]const u8, args: InputInt3) bool {
return zguiInputInt3(label, args.v, args.flags);
}
extern fn zguiInputInt3(label: [*:0]const u8, v: *[3]i32, flags: InputTextFlags) bool;
//--------------------------------------------------------------------------------------------------
const InputInt4 = InputIntGen([4]i32);
pub fn inputInt4(label: [:0]const u8, args: InputInt4) bool {
return zguiInputInt4(label, args.v, args.flags);
}
extern fn zguiInputInt4(label: [*:0]const u8, v: *[4]i32, flags: InputTextFlags) bool;
//--------------------------------------------------------------------------------------------------
const InputDouble = struct {
v: *f64,
step: f64 = 0.0,
step_fast: f64 = 0.0,
cfmt: [:0]const u8 = "%.6f",
flags: InputTextFlags = .{},
};
pub fn inputDouble(label: [:0]const u8, args: InputDouble) bool {
return zguiInputDouble(label, args.v, args.step, args.step_fast, args.cfmt, args.flags);
}
extern fn zguiInputDouble(
label: [*:0]const u8,
v: *f64,
step: f64,
step_fast: f64,
cfmt: [*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn InputScalarGen(comptime T: type) type {
return struct {
v: *T,
step: ?T = null,
step_fast: ?T = null,
cfmt: ?[:0]const u8 = null,
flags: InputTextFlags = .{},
};
}
pub fn inputScalar(label: [:0]const u8, comptime T: type, args: InputScalarGen(T)) bool {
return zguiInputScalar(
label,
typeToDataTypeEnum(T),
args.v,
if (args.step) |s| &s else null,
if (args.step_fast) |sf| &sf else null,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiInputScalar(
label: [*:0]const u8,
data_type: DataType,
pdata: *anyopaque,
pstep: ?*const anyopaque,
pstep_fast: ?*const anyopaque,
cfmt: ?[*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
fn InputScalarNGen(comptime T: type) type {
const ScalarType = @typeInfo(T).Array.child;
return struct {
v: *T,
step: ?ScalarType = null,
step_fast: ?ScalarType = null,
cfmt: ?[:0]const u8 = null,
flags: InputTextFlags = .{},
};
}
pub fn inputScalarN(label: [:0]const u8, comptime T: type, args: InputScalarNGen(T)) bool {
const ScalarType = @typeInfo(T).Array.child;
const components = @typeInfo(T).Array.len;
return zguiInputScalarN(
label,
typeToDataTypeEnum(ScalarType),
args.v,
components,
if (args.step) |s| &s else null,
if (args.step_fast) |sf| &sf else null,
if (args.cfmt) |fmt| fmt else null,
args.flags,
);
}
extern fn zguiInputScalarN(
label: [*:0]const u8,
data_type: DataType,
pdata: *anyopaque,
components: i32,
pstep: ?*const anyopaque,
pstep_fast: ?*const anyopaque,
cfmt: ?[*:0]const u8,
flags: InputTextFlags,
) bool;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Color Editor/Picker
//
//--------------------------------------------------------------------------------------------------
pub const ColorEditFlags = packed struct(u32) {
no_alpha: bool = false,
no_picker: bool = false,
no_options: bool = false,
no_small_preview: bool = false,
no_inputs: bool = false,
no_tooltip: bool = false,
no_label: bool = false,
no_side_preview: bool = false,
no_drag_drop: bool = false,
no_border: bool = false,
_reserved0: bool = false,
_reserved1: bool = false,
_reserved2: bool = false,
_reserved3: bool = false,
_reserved4: bool = false,
alpha_bar: bool = false,
alpha_preview: bool = false,
alpha_preview_half: bool = false,
hdr: bool = false,
display_rgb: bool = false,
display_hsv: bool = false,
display_hex: bool = false,
uint8: bool = false,
float: bool = false,
picker_hue_bar: bool = false,
picker_hue_wheel: bool = false,
input_rgb: bool = false,
input_hsv: bool = false,
_padding: u4 = 0,
pub const default_options = ColorEditFlags{
.uint8 = true,
.display_rgb = true,
.input_rgb = true,
.picker_hue_bar = true,
};
};
//--------------------------------------------------------------------------------------------------
const ColorEdit3 = struct {
col: *[3]f32,
flags: ColorEditFlags = .{},
};
pub fn colorEdit3(label: [:0]const u8, args: ColorEdit3) bool {
return zguiColorEdit3(label, args.col, args.flags);
}
extern fn zguiColorEdit3(label: [*:0]const u8, col: *[3]f32, flags: ColorEditFlags) bool;
//--------------------------------------------------------------------------------------------------
const ColorEdit4 = struct {
col: *[4]f32,
flags: ColorEditFlags = .{},
};
pub fn colorEdit4(label: [:0]const u8, args: ColorEdit4) bool {
return zguiColorEdit4(label, args.col, args.flags);
}
extern fn zguiColorEdit4(label: [*:0]const u8, col: *[4]f32, flags: ColorEditFlags) bool;
//--------------------------------------------------------------------------------------------------
const ColorPicker3 = struct {
col: *[3]f32,
flags: ColorEditFlags = .{},
};
pub fn colorPicker3(label: [:0]const u8, args: ColorPicker3) bool {
return zguiColorPicker3(label, args.col, args.flags);
}
extern fn zguiColorPicker3(label: [*:0]const u8, col: *[3]f32, flags: ColorEditFlags) bool;
//--------------------------------------------------------------------------------------------------
const ColorPicker4 = struct {
col: *[4]f32,
flags: ColorEditFlags = .{},
ref_col: ?[*]const f32 = null,
};
pub fn colorPicker4(label: [:0]const u8, args: ColorPicker4) bool {
return zguiColorPicker4(
label,
args.col,
args.flags,
if (args.ref_col) |rc| rc else null,
);
}
extern fn zguiColorPicker4(
label: [*:0]const u8,
col: *[4]f32,
flags: ColorEditFlags,
ref_col: ?[*]const f32,
) bool;
//--------------------------------------------------------------------------------------------------
const ColorButton = struct {
col: [4]f32,
flags: ColorEditFlags = .{},
w: f32 = 0.0,
h: f32 = 0.0,
};
pub fn colorButton(desc_id: [:0]const u8, args: ColorButton) bool {
return zguiColorButton(desc_id, &args.col, args.flags, args.w, args.h);
}
extern fn zguiColorButton(
desc_id: [*:0]const u8,
col: *const [4]f32,
flags: ColorEditFlags,
w: f32,
h: f32,
) bool;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Trees
//
//--------------------------------------------------------------------------------------------------
pub const TreeNodeFlags = packed struct(u32) {
selected: bool = false,
framed: bool = false,
allow_item_overlap: bool = false,
no_tree_push_on_open: bool = false,
no_auto_open_on_log: bool = false,
default_open: bool = false,
open_on_double_click: bool = false,
open_on_arrow: bool = false,
leaf: bool = false,
bullet: bool = false,
frame_padding: bool = false,
span_avail_width: bool = false,
span_full_width: bool = false,
nav_left_jumps_back_here: bool = false,
_padding: u18 = 0,
pub const collapsing_header = TreeNodeFlags{
.framed = true,
.no_tree_push_on_open = true,
.no_auto_open_on_log = true,
};
};
//--------------------------------------------------------------------------------------------------
pub fn treeNode(label: [:0]const u8) bool {
return zguiTreeNode(label);
}
pub fn treeNodeFlags(label: [:0]const u8, flags: TreeNodeFlags) bool {
return zguiTreeNodeFlags(label, flags);
}
extern fn zguiTreeNode(label: [*:0]const u8) bool;
extern fn zguiTreeNodeFlags(label: [*:0]const u8, flags: TreeNodeFlags) bool;
//--------------------------------------------------------------------------------------------------
pub fn treeNodeStrId(str_id: [:0]const u8, comptime fmt: []const u8, args: anytype) bool {
return zguiTreeNodeStrId(str_id, "%s", formatZ(fmt, args).ptr);
}
pub fn treeNodeStrIdFlags(
str_id: [:0]const u8,
flags: TreeNodeFlags,
comptime fmt: []const u8,
args: anytype,
) bool {
return zguiTreeNodeStrIdFlags(str_id, flags, "%s", formatZ(fmt, args).ptr);
}
extern fn zguiTreeNodeStrId(str_id: [*:0]const u8, fmt: [*:0]const u8, ...) bool;
extern fn zguiTreeNodeStrIdFlags(
str_id: [*:0]const u8,
flags: TreeNodeFlags,
fmt: [*:0]const u8,
...,
) bool;
//--------------------------------------------------------------------------------------------------
pub fn treeNodePtrId(ptr_id: *const anyopaque, comptime fmt: []const u8, args: anytype) bool {
return zguiTreeNodePtrId(ptr_id, "%s", formatZ(fmt, args).ptr);
}
pub fn treeNodePtrIdFlags(
ptr_id: *const anyopaque,
flags: TreeNodeFlags,
comptime fmt: []const u8,
args: anytype,
) bool {
return zguiTreeNodePtrIdFlags(ptr_id, flags, "%s", formatZ(fmt, args).ptr);
}
extern fn zguiTreeNodePtrId(ptr_id: *const anyopaque, fmt: [*:0]const u8, ...) bool;
extern fn zguiTreeNodePtrIdFlags(
ptr_id: *const anyopaque,
flags: TreeNodeFlags,
fmt: [*:0]const u8,
...,
) bool;
//--------------------------------------------------------------------------------------------------
pub fn treePushStrId(str_id: [:0]const u8) void {
zguiTreePushStrId(str_id);
}
pub fn treePushPtrId(ptr_id: *const anyopaque) void {
zguiTreePushPtrId(ptr_id);
}
extern fn zguiTreePushStrId(str_id: [*:0]const u8) void;
extern fn zguiTreePushPtrId(ptr_id: *const anyopaque) void;
//--------------------------------------------------------------------------------------------------
/// `pub fn treePop() void`
pub const treePop = zguiTreePop;
extern fn zguiTreePop() void;
//--------------------------------------------------------------------------------------------------
const CollapsingHeaderStatePtr = struct {
pvisible: *bool,
flags: TreeNodeFlags = .{},
};
pub fn collapsingHeader(label: [:0]const u8, flags: TreeNodeFlags) bool {
return zguiCollapsingHeader(label, flags);
}
pub fn collapsingHeaderStatePtr(label: [:0]const u8, args: CollapsingHeaderStatePtr) bool {
return zguiCollapsingHeaderStatePtr(label, args.pvisible, args.flags);
}
extern fn zguiCollapsingHeader(label: [*:0]const u8, flags: TreeNodeFlags) bool;
extern fn zguiCollapsingHeaderStatePtr(label: [*:0]const u8, pvisible: *bool, flags: TreeNodeFlags) bool;
//--------------------------------------------------------------------------------------------------
const SetNextItemOpen = struct {
is_open: bool,
cond: Condition = .none,
};
pub fn setNextItemOpen(args: SetNextItemOpen) void {
zguiSetNextItemOpen(args.is_open, args.cond);
}
extern fn zguiSetNextItemOpen(is_open: bool, cond: Condition) void;
//--------------------------------------------------------------------------------------------------
//
// Selectables
//
//--------------------------------------------------------------------------------------------------
pub const SelectableFlags = packed struct(u32) {
dont_close_popups: bool = false,
span_all_colums: bool = false,
allow_double_click: bool = false,
disabled: bool = false,
allow_item_overlap: bool = false,
_padding: u27 = 0,
};
//--------------------------------------------------------------------------------------------------
const Selectable = struct {
selected: bool = false,
flags: SelectableFlags = .{},
w: f32 = 0,
h: f32 = 0,
};
pub fn selectable(label: [:0]const u8, args: Selectable) bool {
return zguiSelectable(label, args.selected, args.flags, args.w, args.h);
}
extern fn zguiSelectable(
label: [*:0]const u8,
selected: bool,
flags: SelectableFlags,
w: f32,
h: f32,
) bool;
//--------------------------------------------------------------------------------------------------
const SelectableStatePtr = struct {
pselected: *bool,
flags: SelectableFlags = .{},
w: f32 = 0,
h: f32 = 0,
};
pub fn selectableStatePtr(label: [:0]const u8, args: SelectableStatePtr) bool {
return zguiSelectableStatePtr(label, args.pselected, args.flags, args.w, args.h);
}
extern fn zguiSelectableStatePtr(
label: [*:0]const u8,
pselected: *bool,
flags: SelectableFlags,
w: f32,
h: f32,
) bool;
//--------------------------------------------------------------------------------------------------
//
// Widgets: List Boxes
//
//--------------------------------------------------------------------------------------------------
const BeginListBox = struct {
w: f32 = 0.0,
h: f32 = 0.0,
};
pub fn beginListBox(label: [:0]const u8, args: BeginListBox) bool {
return zguiBeginListBox(label, args.w, args.h);
}
/// `pub fn endListBox() void`
pub const endListBox = zguiEndListBox;
extern fn zguiBeginListBox(label: [*:0]const u8, w: f32, h: f32) bool;
extern fn zguiEndListBox() void;
//--------------------------------------------------------------------------------------------------
//
// Widgets: Tables
//
//--------------------------------------------------------------------------------------------------
pub const TableBorderFlags = packed struct(u4) {
inner_h: bool = false,
outer_h: bool = false,
inner_v: bool = false,
outer_v: bool = false,
pub const h = TableBorderFlags{
.inner_h = true,
.outer_h = true,
}; // Draw horizontal borders.
pub const v = TableBorderFlags{
.inner_v = true,
.outer_v = true,
}; // Draw vertical borders.
pub const inner = TableBorderFlags{
.inner_v = true,
.inner_h = true,
}; // Draw inner borders.
pub const outer = TableBorderFlags{
.outer_v = true,
.outer_h = true,
}; // Draw outer borders.
pub const all = TableBorderFlags{
.inner_v = true,
.inner_h = true,
.outer_v = true,
.outer_h = true,
}; // Draw all borders.
};
pub const TableFlags = packed struct(u32) {
resizable: bool = false,
reorderable: bool = false,
hideable: bool = false,
sortable: bool = false,
no_saved_settings: bool = false,
context_menu_in_body: bool = false,
row_bg: bool = false,
borders: TableBorderFlags = .{},
no_borders_in_body: bool = false,
no_borders_in_body_until_resize: bool = false,
// Sizing Policy
sizing: enum(u3) {
none = 0,
fixed_fit = 1,
fixed_same = 2,
stretch_prop = 3,
stretch_same = 4,
} = .none,
// Sizing Extra Options
no_host_extend_x: bool = false,
no_host_extend_y: bool = false,
no_keep_columns_visible: bool = false,
precise_widths: bool = false,
// Clipping
no_clip: bool = false,
// Padding
pad_outer_x: bool = false,
no_pad_outer_x: bool = false,
no_pad_inner_x: bool = false,
// Scrolling
scroll_x: bool = false,
scroll_y: bool = false,
// Sorting
sort_multi: bool = false,
sort_tristate: bool = false,
_padding: u4 = 0,
};
pub const TableRowFlags = packed struct(u32) {
headers: bool = false,
_padding: u31 = 0,
};
pub const TableColumnFlags = packed struct(u32) {
// Input configuration flags
disabled: bool = false,
default_hide: bool = false,
default_sort: bool = false,
width_stretch: bool = false,
width_fixed: bool = false,
no_resize: bool = false,
no_reorder: bool = false,
no_hide: bool = false,
no_clip: bool = false,
no_sort: bool = false,
no_sort_ascending: bool = false,
no_sort_descending: bool = false,
no_header_label: bool = false,
no_header_width: bool = false,
prefer_sort_ascending: bool = false,
prefer_sort_descending: bool = false,
indent_enable: bool = false,
indent_disable: bool = false,
_padding0: u6 = 0,
// Output status flags, read-only via TableGetColumnFlags()
is_enabled: bool = false,
is_visible: bool = false,
is_sorted: bool = false,
is_hovered: bool = false,
_padding1: u4 = 0,
};
pub const TableColumnSortSpecs = extern struct {
user_id: Ident,
index: i16,
sort_order: i16,
sort_direction: enum(u8) {
none = 0,
ascending = 1, // Ascending = 0->9, A->Z etc.
descending = 2, // Descending = 9->0, Z->A etc.
},
};
pub const TableSortSpecs = *extern struct {
specs: [*]TableColumnSortSpecs,
count: i32,
dirty: bool,
};
pub const TableBgTarget = enum(u32) {
none = 0,
row_bg0 = 1,
row_bg1 = 2,
cell_bg = 3,
};
pub const BeginTable = struct {
column: i32,
flags: TableFlags = .{},
outer_size: [2]f32 = .{ 0, 0 },
inner_width: f32 = 0,
};
pub fn beginTable(name: [:0]const u8, args: BeginTable) void {
zguiBeginTable(name, args.column, args.flags, &args.outer_size, args.inner_width);
}
extern fn zguiBeginTable(
str_id: [*:0]const u8,
column: i32,
flags: TableFlags,
outer_size: *const [2]f32,
inner_width: f32,
) void;
pub fn endTable() void {
zguiEndTable();
}
extern fn zguiEndTable() void;
pub const TableNextRow = struct {
row_flags: TableRowFlags = .{},
min_row_height: f32 = 0,
};
pub fn tableNextRow(args: TableNextRow) void {
zguiTableNextRow(args.row_flags, args.min_row_height);
}
extern fn zguiTableNextRow(row_flags: TableRowFlags, min_row_height: f32) void;
pub const tableNextColumn = zguiTableNextColumn;
extern fn zguiTableNextColumn() bool;
pub const tableSetColumnIndex = zguiTableSetColumnIndex;
extern fn zguiTableSetColumnIndex(column_n: i32) bool;
pub const TableSetupColumn = struct {
flags: TableColumnFlags = .{},
init_width_or_height: f32 = 0,
user_id: Ident = 0,
};
pub fn tableSetupColumn(label: [:0]const u8, args: TableSetupColumn) void {
zguiTableSetupColumn(label, args.flags, args.init_width_or_height, args.user_id);
}
extern fn zguiTableSetupColumn(label: [*:0]const u8, flags: TableColumnFlags, init_width_or_height: f32, user_id: Ident) void;
pub const tableSetupScrollFreeze = zguiTableSetupScrollFreeze;
extern fn zguiTableSetupScrollFreeze(cols: i32, rows: i32) void;
pub const tableHeadersRow = zguiTableHeadersRow;
extern fn zguiTableHeadersRow() void;
pub fn tableHeader(label: [:0]const u8) void {
zguiTableHeader(label);
}
extern fn zguiTableHeader(label: [*:0]const u8) void;
pub const tableGetSortSpecs = zguiTableGetSortSpecs;
extern fn zguiTableGetSortSpecs() ?TableSortSpecs;
pub const tableGetColumnCount = zguiTableGetColumnCount;
extern fn zguiTableGetColumnCount() i32;
pub const tableGetColumnIndex = zguiTableGetColumnIndex;
extern fn zguiTableGetColumnIndex() i32;
pub const tableGetRowIndex = zguiTableGetRowIndex;
extern fn zguiTableGetRowIndex() i32;
pub const TableGetColumnName = struct {
column_n: i32 = -1,
};
pub fn tableGetColumnName(args: TableGetColumnName) [*:0]const u8 {
return zguiTableGetColumnName(args.column_n);
}
extern fn zguiTableGetColumnName(column_n: i32) [*:0]const u8;
pub const TableGetColumnFlags = struct {
column_n: i32 = -1,
};
pub fn tableGetColumnFlags(args: TableGetColumnFlags) TableColumnFlags {
return zguiTableGetColumnFlags(args.column_n);
}
extern fn zguiTableGetColumnFlags(column_n: i32) TableColumnFlags;
pub const tableSetColumnEnabled = zguiTableSetColumnEnabled;
extern fn zguiTableSetColumnEnabled(column_n: i32, v: bool) void;
pub const TableSetBgColor = struct {
target: TableBgTarget,
color: u32,
column_n: i32 = -1,
};
pub fn tableSetBgColor(args: TableSetBgColor) void {
zguiTableSetBgColor(args.target, args.color, args.column_n);
}
extern fn zguiTableSetBgColor(target: TableBgTarget, color: u32, column_n: i32) void;
//--------------------------------------------------------------------------------------------------
//
// Item/Widgets Utilities and Query Functions
//
//--------------------------------------------------------------------------------------------------
pub fn isItemHovered(flags: HoveredFlags) bool {
return zguiIsItemHovered(flags);
}
/// `pub fn isItemActive() bool`
pub const isItemActive = zguiIsItemActive;
/// `pub fn isItemFocused() bool`
pub const isItemFocused = zguiIsItemFocused;
pub const MouseButton = enum(u32) {
left = 0,
right = 1,
middle = 2,
};
/// `pub fn isMouseDoubleClicked(mouse_button: MouseButton) bool`
pub const isMouseDoubleClicked = zguiIsMouseDoubleClicked;
/// `pub fn isItemClicked(mouse_button: MouseButton) bool`
pub const isItemClicked = zguiIsItemClicked;
/// `pub fn isItemVisible() bool`
pub const isItemVisible = zguiIsItemVisible;
/// `pub fn isItemEdited() bool`
pub const isItemEdited = zguiIsItemEdited;
/// `pub fn isItemActivated() bool`
pub const isItemActivated = zguiIsItemActivated;
/// `pub fn isItemDeactivated bool`
pub const isItemDeactivated = zguiIsItemDeactivated;
/// `pub fn isItemDeactivatedAfterEdit() bool`
pub const isItemDeactivatedAfterEdit = zguiIsItemDeactivatedAfterEdit;
/// `pub fn isItemToggledOpen() bool`
pub const isItemToggledOpen = zguiIsItemToggledOpen;
/// `pub fn isAnyItemHovered() bool`
pub const isAnyItemHovered = zguiIsAnyItemHovered;
/// `pub fn isAnyItemActive() bool`
pub const isAnyItemActive = zguiIsAnyItemActive;
/// `pub fn isAnyItemFocused() bool`
pub const isAnyItemFocused = zguiIsAnyItemFocused;
extern fn zguiIsMouseDoubleClicked(mouse_button: MouseButton) bool;
extern fn zguiIsItemHovered(flags: HoveredFlags) bool;
extern fn zguiIsItemActive() bool;
extern fn zguiIsItemFocused() bool;
extern fn zguiIsItemClicked(mouse_button: MouseButton) bool;
extern fn zguiIsItemVisible() bool;
extern fn zguiIsItemEdited() bool;
extern fn zguiIsItemActivated() bool;
extern fn zguiIsItemDeactivated() bool;
extern fn zguiIsItemDeactivatedAfterEdit() bool;
extern fn zguiIsItemToggledOpen() bool;
extern fn zguiIsAnyItemHovered() bool;
extern fn zguiIsAnyItemActive() bool;
extern fn zguiIsAnyItemFocused() bool;
//--------------------------------------------------------------------------------------------------
//
// Color Utilities
//
//--------------------------------------------------------------------------------------------------
pub fn colorConvertU32ToFloat4(in: u32) [4]f32 {
var rgba: [4]f32 = undefined;
zguiColorConvertU32ToFloat4(in, &rgba);
return rgba;
}
pub fn colorConvertU32ToFloat3(in: u32) [3]f32 {
var rgba: [4]f32 = undefined;
zguiColorConvertU32ToFloat4(in, &rgba);
return .{ rgba[0], rgba[1], rgba[2] };
}
pub fn colorConvertFloat4ToU32(in: [4]f32) u32 {
return zguiColorConvertFloat4ToU32(&in);
}
pub fn colorConvertFloat3ToU32(in: [3]f32) u32 {
return colorConvertFloat4ToU32(.{ in[0], in[1], in[2], 1 });
}
pub fn colorConvertRgbToHsv(r: f32, g: f32, b: f32) [3]f32 {
var hsv: [3]f32 = undefined;
return zguiColorConvertRGBtoHSV(r, g, b, &hsv[0], &hsv[1], &hsv[2]);
}
pub fn colorConvertHsvToRgb(h: f32, s: f32, v: f32) [3]f32 {
var rgb: [3]f32 = undefined;
return zguiColorConvertHSVtoRGB(h, s, v, &rgb[0], &rgb[1], &rgb[2]);
}
extern fn zguiColorConvertU32ToFloat4(in: u32, rgba: *[4]f32) void;
extern fn zguiColorConvertFloat4ToU32(in: *const [4]f32) u32;
extern fn zguiColorConvertRGBtoHSV(r: f32, g: f32, b: f32, out_h: *f32, out_s: *f32, out_v: *f32) void;
extern fn zguiColorConvertHSVtoRGB(h: f32, s: f32, v: f32, out_r: *f32, out_g: *f32, out_b: *f32) void;
//--------------------------------------------------------------------------------------------------
//
// Helpers
//
//--------------------------------------------------------------------------------------------------
var temp_buffer: ?std.ArrayList(u8) = null;
pub fn format(comptime fmt: []const u8, args: anytype) []const u8 {
const len = std.fmt.count(fmt, args);
if (len > temp_buffer.?.items.len) temp_buffer.?.resize(len + 64) catch unreachable;
return std.fmt.bufPrint(temp_buffer.?.items, fmt, args) catch unreachable;
}
pub fn formatZ(comptime fmt: []const u8, args: anytype) [:0]const u8 {
const len = std.fmt.count(fmt ++ "\x00", args);
if (len > temp_buffer.?.items.len) temp_buffer.?.resize(len + 64) catch unreachable;
return std.fmt.bufPrintZ(temp_buffer.?.items, fmt, args) catch unreachable;
}
//--------------------------------------------------------------------------------------------------
pub fn typeToDataTypeEnum(comptime T: type) DataType {
return switch (T) {
i8 => .I8,
u8 => .U8,
i16 => .I16,
u16 => .U16,
i32 => .I32,
u32 => .U32,
i64 => .I64,
u64 => .U64,
f32 => .F32,
f64 => .F64,
else => @compileError("Only fundamental scalar types allowed"),
};
}
//--------------------------------------------------------------------------------------------------
//
// Menus
//
//--------------------------------------------------------------------------------------------------
/// `pub fn beginMenuBar() bool`
pub const beginMenuBar = zguiBeginMenuBar;
/// `pub fn endMenuBar() void`
pub const endMenuBar = zguiEndMenuBar;
/// `pub fn beginMainMenuBar() bool`
pub const beginMainMenuBar = zguiBeginMainMenuBar;
/// `pub fn endMainMenuBar() void`
pub const endMainMenuBar = zguiEndMainMenuBar;
pub fn beginMenu(label: [:0]const u8, enabled: bool) bool {
return zguiBeginMenu(label, enabled);
}
/// `pub fn endMenu() void`
pub const endMenu = zguiEndMenu;
const MenuItem = struct {
shortcut: ?[:0]const u8 = null,
selected: bool = false,
enabled: bool = true,
};
pub fn menuItem(label: [:0]const u8, args: MenuItem) bool {
return zguiMenuItem(label, if (args.shortcut) |s| s.ptr else null, args.selected, args.enabled);
}
const MenuItemPtr = struct {
shortcut: ?[:0]const u8 = null,
selected: *bool,
enabled: bool = true,
};
pub fn menuItemPtr(label: [:0]const u8, args: MenuItemPtr) bool {
return zguiMenuItemPtr(label, if (args.shortcut) |s| s.ptr else null, args.selected, args.enabled);
}
extern fn zguiBeginMenuBar() bool;
extern fn zguiEndMenuBar() void;
extern fn zguiBeginMainMenuBar() bool;
extern fn zguiEndMainMenuBar() void;
extern fn zguiBeginMenu(label: [*:0]const u8, enabled: bool) bool;
extern fn zguiEndMenu() void;
extern fn zguiMenuItem(label: [*:0]const u8, shortcut: ?[*:0]const u8, selected: bool, enabled: bool) bool;
extern fn zguiMenuItemPtr(label: [*:0]const u8, shortcut: ?[*:0]const u8, selected: *bool, enabled: bool) bool;
//--------------------------------------------------------------------------------------------------
//
// Popups
//
//--------------------------------------------------------------------------------------------------
/// `pub fn beginTooltip() bool`
pub const beginTooltip = zguiBeginTooltip;
/// `pub fn endTooltip() void`
pub const endTooltip = zguiEndTooltip;
extern fn zguiBeginTooltip() bool;
extern fn zguiEndTooltip() void;
/// `pub fn beginPopupContextWindow() bool`
pub const beginPopupContextWindow = zguiBeginPopupContextWindow;
/// `pub fn beginPopupContextItem() bool`
pub const beginPopupContextItem = zguiBeginPopupContextItem;
pub const PopupFlags = packed struct(u32) {
mouse_button_left: bool = false,
mouse_button_right: bool = false,
mouse_button_middle: bool = false,
mouse_button_mask_: bool = false,
mouse_button_default_: bool = false,
no_open_over_existing_popup: bool = false,
no_open_over_items: bool = false,
any_popup_id: bool = false,
any_popup_level: bool = false,
any_popup: bool = false,
_padding: u22 = 0,
};
pub fn beginPopupModal(name: [:0]const u8, args: Begin) bool {
return zguiBeginPopupModal(name, args.popen, args.flags);
}
pub fn openPopup(str_id: [:0]const u8, flags: PopupFlags) void {
zguiOpenPopup(str_id, flags);
}
/// `pub fn endPopup() void`
pub const endPopup = zguiEndPopup;
/// `pub fn closeCurrentPopup() void`
pub const closeCurrentPopup = zguiCloseCurrentPopup;
extern fn zguiBeginPopupContextWindow() bool;
extern fn zguiBeginPopupContextItem() bool;
extern fn zguiBeginPopupModal(name: [*:0]const u8, popen: ?*bool, flags: WindowFlags) bool;
extern fn zguiEndPopup() void;
extern fn zguiOpenPopup(str_id: [*:0]const u8, flags: PopupFlags) void;
extern fn zguiCloseCurrentPopup() void;
//--------------------------------------------------------------------------------------------------
//
// Tabs
//
//--------------------------------------------------------------------------------------------------
pub const TabBarFlags = packed struct(u32) {
reorderable: bool = false,
auto_select_new_tabs: bool = false,
tab_list_popup_button: bool = false,
no_close_with_middle_mouse_button: bool = false,
no_tab_list_scrolling_buttons: bool = false,
no_tooltip: bool = false,
fitting_policy_resize_down: bool = false,
fitting_policy_scroll: bool = false,
_padding: u24 = 0,
pub const fitting_policy_mask = TabBarFlags{
.fitting_policy_resize_down = true,
.fitting_policy_scroll = true,
};
pub const fitting_policy_default = TabBarFlags{ .fitting_policy_resize_down = true };
};
pub const TabItemFlags = packed struct(u32) {
unsaved_document: bool = false,
set_selected: bool = false,
no_close_with_middle_mouse_button: bool = false,
no_push_id: bool = false,
no_tooltip: bool = false,
no_reorder: bool = false,
leading: bool = false,
trailing: bool = false,
_padding: u24 = 0,
};
pub fn beginTabBar(label: [:0]const u8, flags: TabBarFlags) bool {
return zguiBeginTabBar(label, flags);
}
const BeginTabItem = struct {
p_open: ?*bool = null,
flags: TabItemFlags = .{},
};
pub fn beginTabItem(label: [:0]const u8, args: BeginTabItem) bool {
return zguiBeginTabItem(label, args.p_open, args.flags);
}
/// `void endTabItem() void`
pub const endTabItem = zguiEndTabItem;
/// `void endTabBar() void`
pub const endTabBar = zguiEndTabBar;
pub fn setTabItemClosed(tab_or_docked_window_label: [:0]const u8) void {
zguiSetTabItemClosed(tab_or_docked_window_label);
}
extern fn zguiBeginTabBar(label: [*:0]const u8, flags: TabBarFlags) bool;
extern fn zguiBeginTabItem(label: [*:0]const u8, p_open: ?*bool, flags: TabItemFlags) bool;
extern fn zguiEndTabItem() void;
extern fn zguiEndTabBar() void;
extern fn zguiSetTabItemClosed(tab_or_docked_window_label: [*:0]const u8) void;
//--------------------------------------------------------------------------------------------------
//
// Viewport
//
//--------------------------------------------------------------------------------------------------
pub const Viewport = *opaque {
pub fn getPos(viewport: Viewport) [2]f32 {
var pos: [2]f32 = undefined;
zguiViewport_GetPos(viewport, &pos);
return pos;
}
extern fn zguiViewport_GetPos(viewport: Viewport, pos: *[2]f32) void;
pub fn getSize(viewport: Viewport) [2]f32 {
var pos: [2]f32 = undefined;
zguiViewport_GetSize(viewport, &pos);
return pos;
}
extern fn zguiViewport_GetSize(viewport: Viewport, size: *[2]f32) void;
pub fn getWorkPos(viewport: Viewport) [2]f32 {
var pos: [2]f32 = undefined;
zguiViewport_GetWorkPos(viewport, &pos);
return pos;
}
extern fn zguiViewport_GetWorkPos(viewport: Viewport, pos: *[2]f32) void;
pub fn getWorkSize(viewport: Viewport) [2]f32 {
var pos: [2]f32 = undefined;
zguiViewport_GetWorkSize(viewport, &pos);
return pos;
}
extern fn zguiViewport_GetWorkSize(viewport: Viewport, size: *[2]f32) void;
pub fn getCenter(viewport: Viewport) [2]f32 {
const pos = viewport.getPos();
const size = viewport.getSize();
return .{
pos[0] + size[0] * 0.5,
pos[1] + size[1] * 0.5,
};
}
pub fn getWorkCenter(viewport: Viewport) [2]f32 {
const pos = viewport.getWorkPos();
const size = viewport.getWorkSize();
return .{
pos[0] + size[0] * 0.5,
pos[1] + size[1] * 0.5,
};
}
};
pub const getMainViewport = zguiGetMainViewport;
extern fn zguiGetMainViewport() Viewport;
//--------------------------------------------------------------------------------------------------
//
// Mouse Input
//
//--------------------------------------------------------------------------------------------------
pub const MouseDragDelta = struct {
lock_threshold: f32 = -1.0,
};
pub fn getMouseDragDelta(drag_button: MouseButton, args: MouseDragDelta) [2]f32 {
var delta: [2]f32 = undefined;
zguiGetMouseDragDelta(drag_button, args.lock_threshold, &delta);
return delta;
}
pub const resetMouseDragDelta = zguiResetMouseDragDelta;
extern fn zguiGetMouseDragDelta(button: MouseButton, lock_threshold: f32, delta: *[2]f32) void;
extern fn zguiResetMouseDragDelta(button: MouseButton) void;
//--------------------------------------------------------------------------------------------------
//
// DrawFlags
//
//--------------------------------------------------------------------------------------------------
pub const DrawFlags = packed struct(u32) {
closed: bool = false,
_padding0: u3 = 0,
round_corners_top_left: bool = false,
round_corners_top_right: bool = false,
round_corners_bottom_left: bool = false,
round_corners_bottom_right: bool = false,
round_corners_none: bool = false,
_padding1: u23 = 0,
pub const round_corners_top = DrawFlags{
.round_corners_top_left = true,
.round_corners_top_right = true,
};
pub const round_corners_bottom = DrawFlags{
.round_corners_bottom_left = true,
.round_corners_bottom_right = true,
};
pub const round_corners_left = DrawFlags{
.round_corners_top_left = true,
.round_corners_bottom_left = true,
};
pub const round_corners_right = DrawFlags{
.round_corners_top_right = true,
.round_corners_bottom_right = true,
};
pub const round_corners_all = DrawFlags{
.round_corners_top_left = true,
.round_corners_top_right = true,
.round_corners_bottom_left = true,
.round_corners_bottom_right = true,
};
};
pub const DrawCmd = extern struct {
clip_rect: [4]f32,
texture_id: TextureIdent,
vtx_offset: u32,
idx_offset: u32,
elem_count: u32,
user_callback: ?*anyopaque,
user_callback_data: ?*anyopaque,
};
pub const getWindowDrawList = zguiGetWindowDrawList;
pub const getBackgroundDrawList = zguiGetBackgroundDrawList;
pub const getForegroundDrawList = zguiGetForegroundDrawList;
pub const createDrawList = zguiCreateDrawList;
pub fn destroyDrawList(draw_list: DrawList) void {
if (draw_list.getOwnerName()) |owner| {
@panic(format("zgui: illegally destroying DrawList of {s}", .{owner}));
}
zguiDestroyDrawList(draw_list);
}
extern fn zguiGetWindowDrawList() DrawList;
extern fn zguiGetBackgroundDrawList() DrawList;
extern fn zguiGetForegroundDrawList() DrawList;
extern fn zguiCreateDrawList() DrawList;
extern fn zguiDestroyDrawList(draw_list: DrawList) void;
pub const DrawList = *opaque {
pub const getOwnerName = zguiDrawList_GetOwnerName;
extern fn zguiDrawList_GetOwnerName(draw_list: DrawList) ?[*:0]const u8;
pub fn reset(draw_list: DrawList) void {
if (draw_list.getOwnerName()) |owner| {
@panic(format("zgui: illegally resetting DrawList of {s}", .{owner}));
}
zguiDrawList_ResetForNewFrame(draw_list);
}
extern fn zguiDrawList_ResetForNewFrame(draw_list: DrawList) void;
pub fn clearMemory(draw_list: DrawList) void {
if (draw_list.getOwnerName()) |owner| {
@panic(format("zgui: illegally clearing memory DrawList of {s}", .{owner}));
}
zguiDrawList_ClearFreeMemory(draw_list);
}
extern fn zguiDrawList_ClearFreeMemory(draw_list: DrawList) void;
//----------------------------------------------------------------------------------------------
pub const getVertexBufferLength = zguiDrawList_GetVertexBufferLength;
extern fn zguiDrawList_GetVertexBufferLength(draw_list: DrawList) i32;
pub const getVertexBufferData = zguiDrawList_GetVertexBufferData;
extern fn zguiDrawList_GetVertexBufferData(draw_list: DrawList) [*]const DrawVert;
pub const getIndexBufferLength = zguiDrawList_GetIndexBufferLength;
extern fn zguiDrawList_GetIndexBufferLength(draw_list: DrawList) i32;
pub const getIndexBufferData = zguiDrawList_GetIndexBufferData;
extern fn zguiDrawList_GetIndexBufferData(draw_list: DrawList) [*]const DrawIdx;
pub const getCurrentIndex = zguiDrawList_GetCurrentIndex;
extern fn zguiDrawList_GetCurrentIndex(draw_list: DrawList) u32;
pub const getCmdBufferLength = zguiDrawList_GetCmdBufferLength;
extern fn zguiDrawList_GetCmdBufferLength(draw_list: DrawList) i32;
pub const getCmdBufferData = zguiDrawList_GetCmdBufferData;
extern fn zguiDrawList_GetCmdBufferData(draw_list: DrawList) [*]const DrawCmd;
pub const DrawListFlags = packed struct(u32) {
anti_aliased_lines: bool = false,
anti_aliased_lines_use_tex: bool = false,
anti_aliased_fill: bool = false,
allow_vtx_offset: bool = false,
_padding: u28 = 0,
};
pub const setDrawListFlags = zguiDrawList_SetFlags;
extern fn zguiDrawList_SetFlags(draw_list: DrawList, flags: DrawListFlags) void;
pub const getDrawListFlags = zguiDrawList_GetFlags;
extern fn zguiDrawList_GetFlags(draw_list: DrawList) DrawListFlags;
//----------------------------------------------------------------------------------------------
const ClipRect = struct {
pmin: [2]f32,
pmax: [2]f32,
intersect_with_current: bool = false,
};
pub fn pushClipRect(draw_list: DrawList, args: ClipRect) void {
zguiDrawList_PushClipRect(
draw_list,
&args.pmin,
&args.pmax,
args.intersect_with_current,
);
}
extern fn zguiDrawList_PushClipRect(
draw_list: DrawList,
clip_rect_min: *const [2]f32,
clip_rect_max: *const [2]f32,
intersect_with_current_clip_rect: bool,
) void;
//----------------------------------------------------------------------------------------------
pub const pushClipRectFullScreen = zguiDrawList_PushClipRectFullScreen;
extern fn zguiDrawList_PushClipRectFullScreen(draw_list: DrawList) void;
pub const popClipRect = zguiDrawList_PopClipRect;
extern fn zguiDrawList_PopClipRect(draw_list: DrawList) void;
//----------------------------------------------------------------------------------------------
pub const pushTextureId = zguiDrawList_PushTextureId;
extern fn zguiDrawList_PushTextureId(draw_list: DrawList, texture_id: TextureIdent) void;
pub const popTextureId = zguiDrawList_PopTextureId;
extern fn zguiDrawList_PopTextureId(draw_list: DrawList) void;
//----------------------------------------------------------------------------------------------
pub fn getClipRectMin(draw_list: DrawList) [2]f32 {
var v: [2]f32 = undefined;
zguiDrawList_GetClipRectMin(draw_list, &v);
return v;
}
extern fn zguiDrawList_GetClipRectMin(draw_list: DrawList, clip_min: *[2]f32) void;
pub fn getClipRectMax(draw_list: DrawList) [2]f32 {
var v: [2]f32 = undefined;
zguiDrawList_GetClipRectMax(draw_list, &v);
return v;
}
extern fn zguiDrawList_GetClipRectMax(draw_list: DrawList, clip_min: *[2]f32) void;
//----------------------------------------------------------------------------------------------
const AddLine = struct {
p1: [2]f32,
p2: [2]f32,
col: u32,
thickness: f32,
};
pub fn addLine(draw_list: DrawList, args: AddLine) void {
zguiDrawList_AddLine(draw_list, &args.p1, &args.p2, args.col, args.thickness);
}
extern fn zguiDrawList_AddLine(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
col: u32,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
const AddRect = struct {
pmin: [2]f32,
pmax: [2]f32,
col: u32,
rounding: f32 = 0.0,
flags: DrawFlags = .{},
thickness: f32 = 1.0,
};
pub fn addRect(draw_list: DrawList, args: AddRect) void {
zguiDrawList_AddRect(
draw_list,
&args.pmin,
&args.pmax,
args.col,
args.rounding,
args.flags,
args.thickness,
);
}
extern fn zguiDrawList_AddRect(
draw_list: DrawList,
pmin: *const [2]f32,
pmax: *const [2]f32,
col: u32,
rounding: f32,
flags: DrawFlags,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
const AddRectFilled = struct {
pmin: [2]f32,
pmax: [2]f32,
col: u32,
rounding: f32 = 0.0,
flags: DrawFlags = .{},
};
pub fn addRectFilled(draw_list: DrawList, args: AddRectFilled) void {
zguiDrawList_AddRectFilled(draw_list, &args.pmin, &args.pmax, args.col, args.rounding, args.flags);
}
extern fn zguiDrawList_AddRectFilled(
draw_list: DrawList,
pmin: *const [2]f32,
pmax: *const [2]f32,
col: u32,
rounding: f32,
flags: DrawFlags,
) void;
//----------------------------------------------------------------------------------------------
const AddRectFilledMultiColor = struct {
pmin: [2]f32,
pmax: [2]f32,
col_upr_left: u32,
col_upr_right: u32,
col_bot_right: u32,
col_bot_left: u32,
};
pub fn addRectFilledMultiColor(draw_list: DrawList, args: AddRectFilledMultiColor) void {
zguiDrawList_AddRectFilledMultiColor(
draw_list,
&args.pmin,
&args.pmax,
args.col_upr_left,
args.col_upr_right,
args.col_bot_right,
args.col_bot_left,
);
}
extern fn zguiDrawList_AddRectFilledMultiColor(
draw_list: DrawList,
pmin: *const [2]f32,
pmax: *const [2]f32,
col_upr_left: u32,
col_upr_right: u32,
col_bot_right: u32,
col_bot_left: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddQuad = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
p4: [2]f32,
col: u32,
thickness: f32 = 1.0,
};
pub fn addQuad(draw_list: DrawList, args: AddQuad) void {
zguiDrawList_AddQuad(draw_list, &args.p1, &args.p2, &args.p3, &args.p4, args.col, args.thickness);
}
extern fn zguiDrawList_AddQuad(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
p4: *const [2]f32,
col: u32,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
const AddQuadFilled = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
p4: [2]f32,
col: u32,
};
pub fn addQuadFilled(draw_list: DrawList, args: AddQuadFilled) void {
zguiDrawList_AddQuadFilled(draw_list, &args.p1, &args.p2, &args.p3, &args.p4, args.col);
}
extern fn zguiDrawList_AddQuadFilled(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
p4: *const [2]f32,
col: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddTriangle = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
col: u32,
thickness: f32 = 1.0,
};
pub fn addTriangle(draw_list: DrawList, args: AddTriangle) void {
zguiDrawList_AddTriangle(draw_list, &args.p1, &args.p2, &args.p3, args.col, args.thickness);
}
extern fn zguiDrawList_AddTriangle(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
col: u32,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
const AddTriangleFilled = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
col: u32,
};
pub fn addTriangleFilled(draw_list: DrawList, args: AddTriangleFilled) void {
zguiDrawList_AddTriangleFilled(draw_list, &args.p1, &args.p2, &args.p3, args.col);
}
extern fn zguiDrawList_AddTriangleFilled(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
col: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddCircle = struct {
p: [2]f32,
r: f32,
col: u32,
num_segments: u32 = 0,
thickness: f32 = 1.0,
};
pub fn addCircle(draw_list: DrawList, args: AddCircle) void {
zguiDrawList_AddCircle(draw_list, &args.p, args.r, args.col, args.num_segments, args.thickness);
}
extern fn zguiDrawList_AddCircle(
draw_list: DrawList,
center: *const [2]f32,
radius: f32,
col: u32,
num_segments: u32,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
const AddCircleFilled = struct {
p: [2]f32,
r: f32,
col: u32,
num_segments: u32 = 0,
};
pub fn addCircleFilled(draw_list: DrawList, args: AddCircleFilled) void {
zguiDrawList_AddCircleFilled(draw_list, &args.p, args.r, args.col, args.num_segments);
}
extern fn zguiDrawList_AddCircleFilled(
draw_list: DrawList,
center: *const [2]f32,
radius: f32,
col: u32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddNgon = struct {
p: [2]f32,
r: f32,
col: u32,
num_segments: u32,
thickness: f32 = 1.0,
};
pub fn addNgon(draw_list: DrawList, args: AddNgon) void {
zguiDrawList_AddNgon(draw_list, &args.p, args.r, args.col, args.num_segments, args.thickness);
}
extern fn zguiDrawList_AddNgon(
draw_list: DrawList,
center: *const [2]f32,
radius: f32,
col: u32,
num_segments: u32,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
const AddNgonFilled = struct {
p: [2]f32,
r: f32,
col: u32,
num_segments: u32,
};
pub fn addNgonFilled(draw_list: DrawList, args: AddNgonFilled) void {
zguiDrawList_AddNgonFilled(draw_list, &args.p, args.r, args.col, args.num_segments);
}
extern fn zguiDrawList_AddNgonFilled(
draw_list: DrawList,
center: *const [2]f32,
radius: f32,
col: u32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
pub fn addText(draw_list: DrawList, pos: [2]f32, col: u32, comptime fmt: []const u8, args: anytype) void {
const txt = format(fmt, args);
draw_list.addTextUnformatted(pos, col, txt);
}
pub fn addTextUnformatted(draw_list: DrawList, pos: [2]f32, col: u32, txt: []const u8) void {
zguiDrawList_AddText(draw_list, &pos, col, txt.ptr, txt.ptr + txt.len);
}
extern fn zguiDrawList_AddText(
draw_list: DrawList,
pos: *const [2]f32,
col: u32,
text: [*]const u8,
text_end: [*]const u8,
) void;
//----------------------------------------------------------------------------------------------
const AddPolyline = struct {
col: u32,
flags: DrawFlags = .{},
thickness: f32 = 1.0,
};
pub fn addPolyline(draw_list: DrawList, points: []const [2]f32, args: AddPolyline) void {
zguiDrawList_AddPolyline(
draw_list,
points.ptr,
@intCast(u32, points.len),
args.col,
args.flags,
args.thickness,
);
}
extern fn zguiDrawList_AddPolyline(
draw_list: DrawList,
points: [*]const [2]f32,
num_points: u32,
col: u32,
flags: DrawFlags,
thickness: f32,
) void;
//----------------------------------------------------------------------------------------------
pub fn addConvexPolyFilled(
draw_list: DrawList,
points: []const [2]f32,
col: u32,
) void {
zguiDrawList_AddConvexPolyFilled(
draw_list,
points.ptr,
@intCast(u32, points.len),
col,
);
}
extern fn zguiDrawList_AddConvexPolyFilled(
draw_list: DrawList,
points: [*]const [2]f32,
num_points: u32,
col: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddBezierCubic = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
p4: [2]f32,
col: u32,
thickness: f32 = 1.0,
num_segments: u32 = 0,
};
pub fn addBezierCubic(draw_list: DrawList, args: AddBezierCubic) void {
zguiDrawList_AddBezierCubic(
draw_list,
&args.p1,
&args.p2,
&args.p3,
&args.p4,
args.col,
args.thickness,
args.num_segments,
);
}
extern fn zguiDrawList_AddBezierCubic(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
p4: *const [2]f32,
col: u32,
thickness: f32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddBezierQuadratic = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
col: u32,
thickness: f32 = 1.0,
num_segments: u32 = 0,
};
pub fn addBezierQuadratic(draw_list: DrawList, args: AddBezierQuadratic) void {
zguiDrawList_AddBezierQuadratic(
draw_list,
&args.p1,
&args.p2,
&args.p3,
args.col,
args.thickness,
args.num_segments,
);
}
extern fn zguiDrawList_AddBezierQuadratic(
draw_list: DrawList,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
col: u32,
thickness: f32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddImage = struct {
pmin: [2]f32,
pmax: [2]f32,
uvmin: [2]f32 = .{ 0, 0 },
uvmax: [2]f32 = .{ 1, 1 },
col: u32 = 0xff_ff_ff_ff,
};
pub fn addImage(draw_list: DrawList, user_texture_id: TextureIdent, args: AddImage) void {
zguiDrawList_AddImage(
draw_list,
user_texture_id,
&args.pmin,
&args.pmax,
&args.uvmin,
&args.uvmax,
args.col,
);
}
extern fn zguiDrawList_AddImage(
draw_list: DrawList,
user_texture_id: TextureIdent,
pmin: *const [2]f32,
pmax: *const [2]f32,
uvmin: *const [2]f32,
uvmax: *const [2]f32,
col: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddImageQuad = struct {
p1: [2]f32,
p2: [2]f32,
p3: [2]f32,
p4: [2]f32,
uv1: [2]f32 = .{ 0, 0 },
uv2: [2]f32 = .{ 1, 0 },
uv3: [2]f32 = .{ 1, 1 },
uv4: [2]f32 = .{ 0, 1 },
col: u32 = 0xff_ff_ff_ff,
};
pub fn addImageQuad(draw_list: DrawList, user_texture_id: TextureIdent, args: AddImageQuad) void {
zguiDrawList_AddImageQuad(
draw_list,
user_texture_id,
&args.p1,
&args.p2,
&args.p3,
&args.p4,
&args.uv1,
&args.uv2,
&args.uv3,
&args.uv4,
args.col,
);
}
extern fn zguiDrawList_AddImageQuad(
draw_list: DrawList,
user_texture_id: TextureIdent,
p1: *const [2]f32,
p2: *const [2]f32,
p3: *const [2]f32,
p4: *const [2]f32,
uv1: *const [2]f32,
uv2: *const [2]f32,
uv3: *const [2]f32,
uv4: *const [2]f32,
col: u32,
) void;
//----------------------------------------------------------------------------------------------
const AddImageRounded = struct {
pmin: [2]f32,
pmax: [2]f32,
uvmin: [2]f32 = .{ 0, 0 },
uvmax: [2]f32 = .{ 1, 1 },
col: u32 = 0xff_ff_ff_ff,
rounding: f32 = 4.0,
flags: DrawFlags = .{},
};
pub fn addImageRounded(draw_list: DrawList, user_texture_id: TextureIdent, args: AddImageRounded) void {
zguiDrawList_AddImageRounded(
draw_list,
user_texture_id,
&args.pmin,
&args.pmax,
&args.uvmin,
&args.uvmax,
args.col,
args.rounding,
args.flags,
);
}
extern fn zguiDrawList_AddImageRounded(
draw_list: DrawList,
user_texture_id: TextureIdent,
pmin: *const [2]f32,
pmax: *const [2]f32,
uvmin: *const [2]f32,
uvmax: *const [2]f32,
col: u32,
rounding: f32,
flags: DrawFlags,
) void;
//----------------------------------------------------------------------------------------------
pub const pathClear = zguiDrawList_PathClear;
extern fn zguiDrawList_PathClear(draw_list: DrawList) void;
//----------------------------------------------------------------------------------------------
pub fn pathLineTo(draw_list: DrawList, pos: [2]f32) void {
zguiDrawList_PathLineTo(draw_list, &pos);
}
extern fn zguiDrawList_PathLineTo(draw_list: DrawList, pos: *const [2]f32) void;
//----------------------------------------------------------------------------------------------
pub fn pathLineToMergeDuplicate(draw_list: DrawList, pos: [2]f32) void {
zguiDrawList_PathLineToMergeDuplicate(draw_list, &pos);
}
extern fn zguiDrawList_PathLineToMergeDuplicate(draw_list: DrawList, pos: *const [2]f32) void;
//----------------------------------------------------------------------------------------------
pub const pathFillConvex = zguiDrawList_PathFillConvex;
extern fn zguiDrawList_PathFillConvex(draw_list: DrawList, col: u32) void;
//----------------------------------------------------------------------------------------------
const PathStroke = struct {
col: u32,
flags: DrawFlags = .{},
thickness: f32 = 1.0,
};
pub fn pathStroke(draw_list: DrawList, args: PathStroke) void {
zguiDrawList_PathStroke(draw_list, args.col, args.flags, args.thickness);
}
extern fn zguiDrawList_PathStroke(draw_list: DrawList, col: u32, flags: DrawFlags, thickness: f32) void;
//----------------------------------------------------------------------------------------------
const PathArcTo = struct {
p: [2]f32,
r: f32,
amin: f32,
amax: f32,
num_segments: u32 = 0,
};
pub fn pathArcTo(draw_list: DrawList, args: PathArcTo) void {
zguiDrawList_PathArcTo(
draw_list,
&args.p,
args.r,
args.amin,
args.amax,
args.num_segments,
);
}
extern fn zguiDrawList_PathArcTo(
draw_list: DrawList,
center: *const [2]f32,
radius: f32,
amin: f32,
amax: f32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
const PathArcToFast = struct {
p: [2]f32,
r: f32,
amin_of_12: f32,
amax_of_12: f32,
};
pub fn pathArcToFast(draw_list: DrawList, args: PathArcToFast) void {
zguiDrawList_PathArcToFast(draw_list, &args.p, args.r, args.amin_of_12, args.amax_of_12);
}
extern fn zguiDrawList_PathArcToFast(
draw_list: DrawList,
center: *const [2]f32,
radius: f32,
a_min_of_12: f32,
a_max_of_12: f32,
) void;
//----------------------------------------------------------------------------------------------
const PathBezierCubicCurveTo = struct {
p2: [2]f32,
p3: [2]f32,
p4: [2]f32,
num_segments: u32 = 0,
};
pub fn pathBezierCubicCurveTo(draw_list: DrawList, args: PathBezierCubicCurveTo) void {
zguiDrawList_PathBezierCubicCurveTo(draw_list, &args.p2, &args.p3, &args.p4, args.num_segments);
}
extern fn zguiDrawList_PathBezierCubicCurveTo(
draw_list: DrawList,
p2: *const [2]f32,
p3: *const [2]f32,
p4: *const [2]f32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
const PathBezierQuadraticCurveTo = struct {
p2: [2]f32,
p3: [2]f32,
num_segments: u32 = 0,
};
pub fn pathBezierQuadraticCurveTo(draw_list: DrawList, args: PathBezierQuadraticCurveTo) void {
zguiDrawList_PathBezierQuadraticCurveTo(draw_list, &args.p2, &args.p3, args.num_segments);
}
extern fn zguiDrawList_PathBezierQuadraticCurveTo(
draw_list: DrawList,
p2: *const [2]f32,
p3: *const [2]f32,
num_segments: u32,
) void;
//----------------------------------------------------------------------------------------------
const PathRect = struct {
bmin: [2]f32,
bmax: [2]f32,
rounding: f32 = 0.0,
flags: DrawFlags = .{},
};
pub fn pathRect(draw_list: DrawList, args: PathRect) void {
zguiDrawList_PathRect(draw_list, &args.bmin, &args.bmax, args.rounding, args.flags);
}
extern fn zguiDrawList_PathRect(
draw_list: DrawList,
rect_min: *const [2]f32,
rect_max: *const [2]f32,
rounding: f32,
flags: DrawFlags,
) void;
//----------------------------------------------------------------------------------------------
pub const primReserve = zguiDrawList_PrimReserve;
pub const primUnreserve = zguiDrawList_PrimUnreserve;
pub fn primRect(
draw_list: DrawList,
a: [2]f32,
b: [2]f32,
col: u32,
) void {
return zguiDrawList_PrimRect(draw_list, &a, &b, col);
}
pub fn primRectUV(
draw_list: DrawList,
a: [2]f32,
b: [2]f32,
uv_a: [2]f32,
uv_b: [2]f32,
col: u32,
) void {
return zguiDrawList_PrimRectUV(draw_list, &a, &b, &uv_a, &uv_b, col);
}
pub fn primQuadUV(
draw_list: DrawList,
a: [2]f32,
b: [2]f32,
c: [2]f32,
d: [2]f32,
uv_a: [2]f32,
uv_b: [2]f32,
uv_c: [2]f32,
uv_d: [2]f32,
col: u32,
) void {
return zguiDrawList_PrimQuadUV(draw_list, &a, &b, &c, &d, &uv_a, &uv_b, &uv_c, &uv_d, col);
}
pub fn primWriteVtx(
draw_list: DrawList,
pos: [2]f32,
uv: [2]f32,
col: u32,
) void {
return zguiDrawList_PrimWriteVtx(draw_list, &pos, &uv, col);
}
pub const primWriteIdx = zguiDrawList_PrimWriteIdx;
extern fn zguiDrawList_PrimReserve(
draw_list: DrawList,
idx_count: i32,
vtx_count: i32,
) void;
extern fn zguiDrawList_PrimUnreserve(
draw_list: DrawList,
idx_count: i32,
vtx_count: i32,
) void;
extern fn zguiDrawList_PrimRect(
draw_list: DrawList,
a: *const [2]f32,
b: *const [2]f32,
col: u32,
) void;
extern fn zguiDrawList_PrimRectUV(
draw_list: DrawList,
a: *const [2]f32,
b: *const [2]f32,
uv_a: *const [2]f32,
uv_b: *const [2]f32,
col: u32,
) void;
extern fn zguiDrawList_PrimQuadUV(
draw_list: DrawList,
a: *const [2]f32,
b: *const [2]f32,
c: *const [2]f32,
d: *const [2]f32,
uv_a: *const [2]f32,
uv_b: *const [2]f32,
uv_c: *const [2]f32,
uv_d: *const [2]f32,
col: u32,
) void;
extern fn zguiDrawList_PrimWriteVtx(
draw_list: DrawList,
pos: *const [2]f32,
uv: *const [2]f32,
col: u32,
) void;
extern fn zguiDrawList_PrimWriteIdx(
draw_list: DrawList,
idx: DrawIdx,
) void;
//----------------------------------------------------------------------------------------------
};
|
0 | repos/zig_vulkan/deps/zgui | repos/zig_vulkan/deps/zgui/src/plot.zig | //--------------------------------------------------------------------------------------------------
const assert = @import("std").debug.assert;
const gui = @import("gui.zig");
//--------------------------------------------------------------------------------------------------
pub fn init() void {
if (zguiPlot_GetCurrentContext() == null) {
_ = zguiPlot_CreateContext();
}
}
pub fn deinit() void {
if (zguiPlot_GetCurrentContext() != null) {
zguiPlot_DestroyContext(null);
}
}
const Context = *opaque {};
extern fn zguiPlot_GetCurrentContext() ?Context;
extern fn zguiPlot_CreateContext() Context;
extern fn zguiPlot_DestroyContext(ctx: ?Context) void;
//--------------------------------------------------------------------------------------------------
pub const Marker = enum(i32) {
none = -1,
circle = 0,
square,
diamond,
up,
down,
left,
right,
cross,
plus,
asterisk,
};
pub const Colormap = enum(u32) {
deep,
dark,
pastel,
paired,
viridis,
plasma,
hot,
cool,
pink,
jet,
twilight,
rd_bu,
br_b_g,
pi_y_g,
spectral,
greys,
};
pub const Style = extern struct {
line_weight: f32,
marker: Marker,
marker_size: f32,
marker_weight: f32,
fill_alpha: f32,
error_bar_size: f32,
error_bar_weight: f32,
digital_bit_height: f32,
digital_bit_gap: f32,
plot_border_size: f32,
minor_alpha: f32,
major_tick_len: [2]f32,
minor_tick_len: [2]f32,
major_tick_size: [2]f32,
minor_tick_size: [2]f32,
major_grid_size: [2]f32,
minor_grid_size: [2]f32,
plot_padding: [2]f32,
label_padding: [2]f32,
legend_padding: [2]f32,
legend_inner_padding: [2]f32,
legend_spacing: [2]f32,
mouse_pos_padding: [2]f32,
annotation_padding: [2]f32,
fit_padding: [2]f32,
plot_default_size: [2]f32,
plot_min_size: [2]f32,
colors: [@typeInfo(StyleCol).Enum.fields.len][4]f32,
colormap: Colormap,
use_local_time: bool,
use_iso_8601: bool,
use_24h_clock: bool,
/// `pub fn init() Style`
pub const init = zguiPlotStyle_Init;
extern fn zguiPlotStyle_Init() Style;
pub fn getColor(style: Style, idx: StyleCol) [4]f32 {
return style.colors[@enumToInt(idx)];
}
pub fn setColor(style: *Style, idx: StyleCol, color: [4]f32) void {
style.colors[@enumToInt(idx)] = color;
}
};
/// `pub fn getStyle() *Style`
pub const getStyle = zguiPlot_GetStyle;
extern fn zguiPlot_GetStyle() *Style;
//--------------------------------------------------------------------------------------------------
pub const StyleCol = enum(u32) {
line,
fill,
marker_outline,
marker_fill,
error_bar,
frame_bg,
plot_bg,
plot_border,
legend_bg,
legend_border,
legend_text,
title_text,
inlay_text,
axis_text,
axis_grid,
axis_tick,
axis_bg,
axis_bg_hovered,
axis_bg_active,
selection,
crosshairs,
};
const PushStyleColor4f = struct {
idx: StyleCol,
c: [4]f32,
};
pub fn pushStyleColor4f(args: PushStyleColor4f) void {
zguiPlot_PushStyleColor4f(args.idx, &args.c);
}
const PushStyleColor1u = struct {
idx: StyleCol,
c: u32,
};
pub fn pushStyleColor1u(args: PushStyleColor1u) void {
zguiPlot_PushStyleColor1u(args.idx, args.c);
}
const PopStyleColor = struct {
count: i32 = 1,
};
pub fn popStyleColor(args: PopStyleColor) void {
zguiPlot_PopStyleColor(args.count);
}
extern fn zguiPlot_PushStyleColor4f(idx: StyleCol, col: *const [4]f32) void;
extern fn zguiPlot_PushStyleColor1u(idx: StyleCol, col: u32) void;
extern fn zguiPlot_PopStyleColor(count: i32) void;
//--------------------------------------------------------------------------------------------------
pub const StyleVar = enum(u32) {
line_weight, // 1f
marker, // 1i
marker_size, // 1f
marker_weight, // 1f
fill_alpha, // 1f
error_bar_size, // 1f
error_bar_weight, // 1f
digital_bit_height, // 1f
digital_bit_gap, // 1f
plot_border_size, // 1f
minor_alpha, // 1f
major_tick_len, // 2f
minor_tick_len, // 2f
major_tick_size, // 2f
minor_tick_size, // 2f
major_grid_size, // 2f
minor_grid_size, // 2f
plot_padding, // 2f
label_padding, // 2f
legend_padding, // 2f
legend_inner_padding, // 2f
legend_spacing, // 2f
mouse_pos_padding, // 2f
annotation_padding, // 2f
fit_padding, // 2f
plot_default_size, // 2f
plot_min_size, // 2f
};
const PushStyleVar1i = struct {
idx: StyleVar,
v: i32,
};
pub fn pushStyleVar1i(args: PushStyleVar1i) void {
zguiPlot_PushStyleVar1i(args.idx, args.v);
}
const PushStyleVar1f = struct {
idx: StyleVar,
v: f32,
};
pub fn pushStyleVar1f(args: PushStyleVar1f) void {
zguiPlot_PushStyleVar1f(args.idx, args.v);
}
const PushStyleVar2f = struct {
idx: StyleVar,
v: [2]f32,
};
pub fn pushStyleVar2f(args: PushStyleVar2f) void {
zguiPlot_PushStyleVar2f(args.idx, &args.v);
}
const PopStyleVar = struct {
count: i32 = 1,
};
pub fn popStyleVar(args: PopStyleVar) void {
zguiPlot_PopStyleVar(args.count);
}
extern fn zguiPlot_PushStyleVar1i(idx: StyleVar, v: i32) void;
extern fn zguiPlot_PushStyleVar1f(idx: StyleVar, v: f32) void;
extern fn zguiPlot_PushStyleVar2f(idx: StyleVar, v: *const [2]f32) void;
extern fn zguiPlot_PopStyleVar(count: i32) void;
//--------------------------------------------------------------------------------------------------
pub const PlotLocation = packed struct(u32) {
north: bool = false,
south: bool = false,
west: bool = false,
east: bool = false,
_padding: u28 = 0,
pub const north_west = PlotLocation{ .north = true, .west = true };
pub const north_east = PlotLocation{ .north = true, .east = true };
pub const south_west = PlotLocation{ .south = true, .west = true };
pub const south_east = PlotLocation{ .south = true, .east = true };
};
pub const LegendFlags = packed struct(u32) {
no_buttons: bool = false,
no_highlight_item: bool = false,
no_highlight_axis: bool = false,
no_menus: bool = false,
outside: bool = false,
horizontal: bool = false,
_padding: u26 = 0,
};
pub fn setupLegend(location: PlotLocation, flags: LegendFlags) void {
zguiPlot_SetupLegend(location, flags);
}
extern fn zguiPlot_SetupLegend(location: PlotLocation, flags: LegendFlags) void;
//--------------------------------------------------------------------------------------------------
pub const AxisFlags = packed struct(u32) {
no_label: bool = false,
no_grid_lines: bool = false,
no_tick_marks: bool = false,
no_tick_labels: bool = false,
no_initial_fit: bool = false,
no_menus: bool = false,
no_side_switch: bool = false,
no_highlight: bool = false,
opposite: bool = false,
foreground: bool = false,
invert: bool = false,
auto_fit: bool = false,
range_fit: bool = false,
pan_stretch: bool = false,
lock_min: bool = false,
lock_max: bool = false,
_padding: u16 = 0,
pub const lock = AxisFlags{
.lock_min = true,
.lock_max = true,
};
pub const no_decorations = AxisFlags{
.no_label = true,
.no_grid_lines = true,
.no_tick_marks = true,
.no_tick_labels = true,
};
pub const aux_default = AxisFlags{
.no_grid_lines = true,
.opposite = true,
};
};
pub const Axis = enum(u32) { x1, x2, x3, y1, y2, y3 };
pub const SetupAxis = struct {
label: ?[:0]const u8 = null,
flags: AxisFlags = .{},
};
pub fn setupAxis(axis: Axis, args: SetupAxis) void {
zguiPlot_SetupAxis(axis, if (args.label) |l| l else null, args.flags);
}
extern fn zguiPlot_SetupAxis(axis: Axis, label: ?[*:0]const u8, flags: AxisFlags) void;
//----------------------------------------------------------------------------------------------
pub const Condition = enum(u32) {
none = @enumToInt(gui.Condition.none),
always = @enumToInt(gui.Condition.always),
once = @enumToInt(gui.Condition.once),
};
const SetupAxisLimits = struct {
min: f64,
max: f64,
cond: Condition = .once,
};
pub fn setupAxisLimits(axis: Axis, args: SetupAxisLimits) void {
zguiPlot_SetupAxisLimits(axis, args.min, args.max, args.cond);
}
extern fn zguiPlot_SetupAxisLimits(axis: Axis, min: f64, max: f64, cond: Condition) void;
//----------------------------------------------------------------------------------------------
/// `pub fn setupFinish() void`
pub const setupFinish = zguiPlot_SetupFinish;
extern fn zguiPlot_SetupFinish() void;
//----------------------------------------------------------------------------------------------
pub const Flags = packed struct(u32) {
no_title: bool = false,
no_legend: bool = false,
no_mouse_text: bool = false,
no_inputs: bool = false,
no_menus: bool = false,
no_box_select: bool = false,
no_child: bool = false,
no_frame: bool = false,
equal: bool = false,
crosshairs: bool = false,
_padding: u22 = 0,
pub const canvas_only = Flags{
.no_title = true,
.no_legend = true,
.no_menus = true,
.no_box_select = true,
.no_mouse_text = true,
};
};
pub const BeginPlot = struct {
w: f32 = -1.0,
h: f32 = 0.0,
flags: Flags = .{},
};
pub fn beginPlot(title_id: [:0]const u8, args: BeginPlot) bool {
return zguiPlot_BeginPlot(title_id, args.w, args.h, args.flags);
}
extern fn zguiPlot_BeginPlot(title_id: [*:0]const u8, width: f32, height: f32, flags: Flags) bool;
//----------------------------------------------------------------------------------------------
pub const LineFlags = packed struct(u32) {
_reserved0: bool = false,
_reserved1: bool = false,
_reserved2: bool = false,
_reserved3: bool = false,
_reserved4: bool = false,
_reserved5: bool = false,
_reserved6: bool = false,
_reserved7: bool = false,
_reserved8: bool = false,
_reserved9: bool = false,
segments: bool = false,
loop: bool = false,
skip_nan: bool = false,
no_clip: bool = false,
shaded: bool = false,
_padding: u17 = 0,
};
fn PlotLineValuesGen(comptime T: type) type {
return struct {
v: []const T,
xscale: f64 = 1.0,
xstart: f64 = 0.0,
flags: LineFlags = .{},
offset: i32 = 0,
stride: i32 = @sizeOf(T),
};
}
pub fn plotLineValues(label_id: [:0]const u8, comptime T: type, args: PlotLineValuesGen(T)) void {
zguiPlot_PlotLineValues(
label_id,
gui.typeToDataTypeEnum(T),
args.v.ptr,
@intCast(i32, args.v.len),
args.xscale,
args.xstart,
args.flags,
args.offset,
args.stride,
);
}
extern fn zguiPlot_PlotLineValues(
label_id: [*:0]const u8,
data_type: gui.DataType,
values: *const anyopaque,
count: i32,
xscale: f64,
xstart: f64,
flags: LineFlags,
offset: i32,
stride: i32,
) void;
//----------------------------------------------------------------------------------------------
fn PlotLineGen(comptime T: type) type {
return struct {
xv: []const T,
yv: []const T,
flags: LineFlags = .{},
offset: i32 = 0,
stride: i32 = @sizeOf(T),
};
}
pub fn plotLine(label_id: [:0]const u8, comptime T: type, args: PlotLineGen(T)) void {
assert(args.xv.len == args.yv.len);
zguiPlot_PlotLine(
label_id,
gui.typeToDataTypeEnum(T),
args.xv.ptr,
args.yv.ptr,
@intCast(i32, args.xv.len),
args.flags,
args.offset,
args.stride,
);
}
extern fn zguiPlot_PlotLine(
label_id: [*:0]const u8,
data_type: gui.DataType,
xv: *const anyopaque,
yv: *const anyopaque,
count: i32,
flags: LineFlags,
offset: i32,
stride: i32,
) void;
//----------------------------------------------------------------------------------------------
pub const ScatterFlags = packed struct(u32) {
_reserved0: bool = false,
_reserved1: bool = false,
_reserved2: bool = false,
_reserved3: bool = false,
_reserved4: bool = false,
_reserved5: bool = false,
_reserved6: bool = false,
_reserved7: bool = false,
_reserved8: bool = false,
_reserved9: bool = false,
no_clip: bool = false,
_padding: u21 = 0,
};
fn PlotScatterValuesGen(comptime T: type) type {
return struct {
v: []const T,
xscale: f64 = 1.0,
xstart: f64 = 0.0,
flags: ScatterFlags = .{},
offset: i32 = 0,
stride: i32 = @sizeOf(T),
};
}
pub fn plotScatterValues(label_id: [:0]const u8, comptime T: type, args: PlotScatterValuesGen(T)) void {
zguiPlot_PlotScatterValues(
label_id,
gui.typeToDataTypeEnum(T),
args.v.ptr,
@intCast(i32, args.v.len),
args.xscale,
args.xstart,
args.flags,
args.offset,
args.stride,
);
}
extern fn zguiPlot_PlotScatterValues(
label_id: [*:0]const u8,
data_type: gui.DataType,
values: *const anyopaque,
count: i32,
xscale: f64,
xstart: f64,
flags: ScatterFlags,
offset: i32,
stride: i32,
) void;
//----------------------------------------------------------------------------------------------
fn PlotScatterGen(comptime T: type) type {
return struct {
xv: []const T,
yv: []const T,
flags: ScatterFlags = .{},
offset: i32 = 0,
stride: i32 = @sizeOf(T),
};
}
pub fn plotScatter(label_id: [:0]const u8, comptime T: type, args: PlotScatterGen(T)) void {
assert(args.xv.len == args.yv.len);
zguiPlot_PlotScatter(
label_id,
gui.typeToDataTypeEnum(T),
args.xv.ptr,
args.yv.ptr,
@intCast(i32, args.xv.len),
args.flags,
args.offset,
args.stride,
);
}
extern fn zguiPlot_PlotScatter(
label_id: [*:0]const u8,
data_type: gui.DataType,
xv: *const anyopaque,
yv: *const anyopaque,
count: i32,
flags: ScatterFlags,
offset: i32,
stride: i32,
) void;
//----------------------------------------------------------------------------------------------
/// `pub fn endPlot() void`
pub const endPlot = zguiPlot_EndPlot;
extern fn zguiPlot_EndPlot() void;
//----------------------------------------------------------------------------------------------
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui_tables.cpp | // dear imgui, v1.89.4
// (tables and columns code)
/*
Index of this file:
// [SECTION] Commentary
// [SECTION] Header mess
// [SECTION] Tables: Main code
// [SECTION] Tables: Simple accessors
// [SECTION] Tables: Row changes
// [SECTION] Tables: Columns changes
// [SECTION] Tables: Columns width management
// [SECTION] Tables: Drawing
// [SECTION] Tables: Sorting
// [SECTION] Tables: Headers
// [SECTION] Tables: Context Menu
// [SECTION] Tables: Settings (.ini data)
// [SECTION] Tables: Garbage Collection
// [SECTION] Tables: Debugging
// [SECTION] Columns, BeginColumns, EndColumns, etc.
*/
// Navigating this file:
// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
//-----------------------------------------------------------------------------
// [SECTION] Commentary
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Typical tables call flow: (root level is generally public API):
//-----------------------------------------------------------------------------
// - BeginTable() user begin into a table
// | BeginChild() - (if ScrollX/ScrollY is set)
// | TableBeginInitMemory() - first time table is used
// | TableResetSettings() - on settings reset
// | TableLoadSettings() - on settings load
// | TableBeginApplyRequests() - apply queued resizing/reordering/hiding requests
// | - TableSetColumnWidth() - apply resizing width (for mouse resize, often requested by previous frame)
// | - TableUpdateColumnsWeightFromWidth()- recompute columns weights (of stretch columns) from their respective width
// - TableSetupColumn() user submit columns details (optional)
// - TableSetupScrollFreeze() user submit scroll freeze information (optional)
//-----------------------------------------------------------------------------
// - TableUpdateLayout() [Internal] followup to BeginTable(): setup everything: widths, columns positions, clipping rectangles. Automatically called by the FIRST call to TableNextRow() or TableHeadersRow().
// | TableSetupDrawChannels() - setup ImDrawList channels
// | TableUpdateBorders() - detect hovering columns for resize, ahead of contents submission
// | TableDrawContextMenu() - draw right-click context menu
//-----------------------------------------------------------------------------
// - TableHeadersRow() or TableHeader() user submit a headers row (optional)
// | TableSortSpecsClickColumn() - when left-clicked: alter sort order and sort direction
// | TableOpenContextMenu() - when right-clicked: trigger opening of the default context menu
// - TableGetSortSpecs() user queries updated sort specs (optional, generally after submitting headers)
// - TableNextRow() user begin into a new row (also automatically called by TableHeadersRow())
// | TableEndRow() - finish existing row
// | TableBeginRow() - add a new row
// - TableSetColumnIndex() / TableNextColumn() user begin into a cell
// | TableEndCell() - close existing column/cell
// | TableBeginCell() - enter into current column/cell
// - [...] user emit contents
//-----------------------------------------------------------------------------
// - EndTable() user ends the table
// | TableDrawBorders() - draw outer borders, inner vertical borders
// | TableMergeDrawChannels() - merge draw channels if clipping isn't required
// | EndChild() - (if ScrollX/ScrollY is set)
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// TABLE SIZING
//-----------------------------------------------------------------------------
// (Read carefully because this is subtle but it does make sense!)
//-----------------------------------------------------------------------------
// About 'outer_size':
// Its meaning needs to differ slightly depending on if we are using ScrollX/ScrollY flags.
// Default value is ImVec2(0.0f, 0.0f).
// X
// - outer_size.x <= 0.0f -> Right-align from window/work-rect right-most edge. With -FLT_MIN or 0.0f will align exactly on right-most edge.
// - outer_size.x > 0.0f -> Set Fixed width.
// Y with ScrollX/ScrollY disabled: we output table directly in current window
// - outer_size.y < 0.0f -> Bottom-align (but will auto extend, unless _NoHostExtendY is set). Not meaningful is parent window can vertically scroll.
// - outer_size.y = 0.0f -> No minimum height (but will auto extend, unless _NoHostExtendY is set)
// - outer_size.y > 0.0f -> Set Minimum height (but will auto extend, unless _NoHostExtenY is set)
// Y with ScrollX/ScrollY enabled: using a child window for scrolling
// - outer_size.y < 0.0f -> Bottom-align. Not meaningful is parent window can vertically scroll.
// - outer_size.y = 0.0f -> Bottom-align, consistent with BeginChild(). Not recommended unless table is last item in parent window.
// - outer_size.y > 0.0f -> Set Exact height. Recommended when using Scrolling on any axis.
//-----------------------------------------------------------------------------
// Outer size is also affected by the NoHostExtendX/NoHostExtendY flags.
// Important to that note how the two flags have slightly different behaviors!
// - ImGuiTableFlags_NoHostExtendX -> Make outer width auto-fit to columns (overriding outer_size.x value). Only available when ScrollX/ScrollY are disabled and Stretch columns are not used.
// - ImGuiTableFlags_NoHostExtendY -> Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit). Only available when ScrollX/ScrollY is disabled. Data below the limit will be clipped and not visible.
// In theory ImGuiTableFlags_NoHostExtendY could be the default and any non-scrolling tables with outer_size.y != 0.0f would use exact height.
// This would be consistent but perhaps less useful and more confusing (as vertically clipped items are not easily noticeable)
//-----------------------------------------------------------------------------
// About 'inner_width':
// With ScrollX disabled:
// - inner_width -> *ignored*
// With ScrollX enabled:
// - inner_width < 0.0f -> *illegal* fit in known width (right align from outer_size.x) <-- weird
// - inner_width = 0.0f -> fit in outer_width: Fixed size columns will take space they need (if avail, otherwise shrink down), Stretch columns becomes Fixed columns.
// - inner_width > 0.0f -> override scrolling width, generally to be larger than outer_size.x. Fixed column take space they need (if avail, otherwise shrink down), Stretch columns share remaining space!
//-----------------------------------------------------------------------------
// Details:
// - If you want to use Stretch columns with ScrollX, you generally need to specify 'inner_width' otherwise the concept
// of "available space" doesn't make sense.
// - Even if not really useful, we allow 'inner_width < outer_size.x' for consistency and to facilitate understanding
// of what the value does.
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// COLUMNS SIZING POLICIES
//-----------------------------------------------------------------------------
// About overriding column sizing policy and width/weight with TableSetupColumn():
// We use a default parameter of 'init_width_or_weight == -1'.
// - with ImGuiTableColumnFlags_WidthFixed, init_width <= 0 (default) --> width is automatic
// - with ImGuiTableColumnFlags_WidthFixed, init_width > 0 (explicit) --> width is custom
// - with ImGuiTableColumnFlags_WidthStretch, init_weight <= 0 (default) --> weight is 1.0f
// - with ImGuiTableColumnFlags_WidthStretch, init_weight > 0 (explicit) --> weight is custom
// Widths are specified _without_ CellPadding. If you specify a width of 100.0f, the column will be cover (100.0f + Padding * 2.0f)
// and you can fit a 100.0f wide item in it without clipping and with full padding.
//-----------------------------------------------------------------------------
// About default sizing policy (if you don't specify a ImGuiTableColumnFlags_WidthXXXX flag)
// - with Table policy ImGuiTableFlags_SizingFixedFit --> default Column policy is ImGuiTableColumnFlags_WidthFixed, default Width is equal to contents width
// - with Table policy ImGuiTableFlags_SizingFixedSame --> default Column policy is ImGuiTableColumnFlags_WidthFixed, default Width is max of all contents width
// - with Table policy ImGuiTableFlags_SizingStretchSame --> default Column policy is ImGuiTableColumnFlags_WidthStretch, default Weight is 1.0f
// - with Table policy ImGuiTableFlags_SizingStretchWeight --> default Column policy is ImGuiTableColumnFlags_WidthStretch, default Weight is proportional to contents
// Default Width and default Weight can be overridden when calling TableSetupColumn().
//-----------------------------------------------------------------------------
// About mixing Fixed/Auto and Stretch columns together:
// - the typical use of mixing sizing policies is: any number of LEADING Fixed columns, followed by one or two TRAILING Stretch columns.
// - using mixed policies with ScrollX does not make much sense, as using Stretch columns with ScrollX does not make much sense in the first place!
// that is, unless 'inner_width' is passed to BeginTable() to explicitly provide a total width to layout columns in.
// - when using ImGuiTableFlags_SizingFixedSame with mixed columns, only the Fixed/Auto columns will match their widths to the width of the maximum contents.
// - when using ImGuiTableFlags_SizingStretchSame with mixed columns, only the Stretch columns will match their weight/widths.
//-----------------------------------------------------------------------------
// About using column width:
// If a column is manual resizable or has a width specified with TableSetupColumn():
// - you may use GetContentRegionAvail().x to query the width available in a given column.
// - right-side alignment features such as SetNextItemWidth(-x) or PushItemWidth(-x) will rely on this width.
// If the column is not resizable and has no width specified with TableSetupColumn():
// - its width will be automatic and be set to the max of items submitted.
// - therefore you generally cannot have ALL items of the columns use e.g. SetNextItemWidth(-FLT_MIN).
// - but if the column has one or more items of known/fixed size, this will become the reference width used by SetNextItemWidth(-FLT_MIN).
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// TABLES CLIPPING/CULLING
//-----------------------------------------------------------------------------
// About clipping/culling of Rows in Tables:
// - For large numbers of rows, it is recommended you use ImGuiListClipper to only submit visible rows.
// ImGuiListClipper is reliant on the fact that rows are of equal height.
// See 'Demo->Tables->Vertical Scrolling' or 'Demo->Tables->Advanced' for a demo of using the clipper.
// - Note that auto-resizing columns don't play well with using the clipper.
// By default a table with _ScrollX but without _Resizable will have column auto-resize.
// So, if you want to use the clipper, make sure to either enable _Resizable, either setup columns width explicitly with _WidthFixed.
//-----------------------------------------------------------------------------
// About clipping/culling of Columns in Tables:
// - Both TableSetColumnIndex() and TableNextColumn() return true when the column is visible or performing
// width measurements. Otherwise, you may skip submitting the contents of a cell/column, BUT ONLY if you know
// it is not going to contribute to row height.
// In many situations, you may skip submitting contents for every column but one (e.g. the first one).
// - Case A: column is not hidden by user, and at least partially in sight (most common case).
// - Case B: column is clipped / out of sight (because of scrolling or parent ClipRect): TableNextColumn() return false as a hint but we still allow layout output.
// - Case C: column is hidden explicitly by the user (e.g. via the context menu, or _DefaultHide column flag, etc.).
//
// [A] [B] [C]
// TableNextColumn(): true false false -> [userland] when TableNextColumn() / TableSetColumnIndex() return false, user can skip submitting items but only if the column doesn't contribute to row height.
// SkipItems: false false true -> [internal] when SkipItems is true, most widgets will early out if submitted, resulting is no layout output.
// ClipRect: normal zero-width zero-width -> [internal] when ClipRect is zero, ItemAdd() will return false and most widgets will early out mid-way.
// ImDrawList output: normal dummy dummy -> [internal] when using the dummy channel, ImDrawList submissions (if any) will be wasted (because cliprect is zero-width anyway).
//
// - We need to distinguish those cases because non-hidden columns that are clipped outside of scrolling bounds should still contribute their height to the row.
// However, in the majority of cases, the contribution to row height is the same for all columns, or the tallest cells are known by the programmer.
//-----------------------------------------------------------------------------
// About clipping/culling of whole Tables:
// - Scrolling tables with a known outer size can be clipped earlier as BeginTable() will return false.
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// [SECTION] Header mess
//-----------------------------------------------------------------------------
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_internal.h"
// System includes
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
#pragma warning (disable: 5054) // operator '|': deprecated between enumerations of different types
#endif
#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
#pragma clang diagnostic ignored "-Wformat-nonliteral" // warning: format string is not a string literal // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
#pragma clang diagnostic ignored "-Wenum-enum-conversion" // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_')
#pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wformat-nonliteral" // warning: format not a string literal, format string not checked
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif
//-----------------------------------------------------------------------------
// [SECTION] Tables: Main code
//-----------------------------------------------------------------------------
// - TableFixFlags() [Internal]
// - TableFindByID() [Internal]
// - BeginTable()
// - BeginTableEx() [Internal]
// - TableBeginInitMemory() [Internal]
// - TableBeginApplyRequests() [Internal]
// - TableSetupColumnFlags() [Internal]
// - TableUpdateLayout() [Internal]
// - TableUpdateBorders() [Internal]
// - EndTable()
// - TableSetupColumn()
// - TableSetupScrollFreeze()
//-----------------------------------------------------------------------------
// Configuration
static const int TABLE_DRAW_CHANNEL_BG0 = 0;
static const int TABLE_DRAW_CHANNEL_BG2_FROZEN = 1;
static const int TABLE_DRAW_CHANNEL_NOCLIP = 2; // When using ImGuiTableFlags_NoClip (this becomes the last visible channel)
static const float TABLE_BORDER_SIZE = 1.0f; // FIXME-TABLE: Currently hard-coded because of clipping assumptions with outer borders rendering.
static const float TABLE_RESIZE_SEPARATOR_HALF_THICKNESS = 4.0f; // Extend outside inner borders.
static const float TABLE_RESIZE_SEPARATOR_FEEDBACK_TIMER = 0.06f; // Delay/timer before making the hover feedback (color+cursor) visible because tables/columns tends to be more cramped.
// Helper
inline ImGuiTableFlags TableFixFlags(ImGuiTableFlags flags, ImGuiWindow* outer_window)
{
// Adjust flags: set default sizing policy
if ((flags & ImGuiTableFlags_SizingMask_) == 0)
flags |= ((flags & ImGuiTableFlags_ScrollX) || (outer_window->Flags & ImGuiWindowFlags_AlwaysAutoResize)) ? ImGuiTableFlags_SizingFixedFit : ImGuiTableFlags_SizingStretchSame;
// Adjust flags: enable NoKeepColumnsVisible when using ImGuiTableFlags_SizingFixedSame
if ((flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedSame)
flags |= ImGuiTableFlags_NoKeepColumnsVisible;
// Adjust flags: enforce borders when resizable
if (flags & ImGuiTableFlags_Resizable)
flags |= ImGuiTableFlags_BordersInnerV;
// Adjust flags: disable NoHostExtendX/NoHostExtendY if we have any scrolling going on
if (flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY))
flags &= ~(ImGuiTableFlags_NoHostExtendX | ImGuiTableFlags_NoHostExtendY);
// Adjust flags: NoBordersInBodyUntilResize takes priority over NoBordersInBody
if (flags & ImGuiTableFlags_NoBordersInBodyUntilResize)
flags &= ~ImGuiTableFlags_NoBordersInBody;
// Adjust flags: disable saved settings if there's nothing to save
if ((flags & (ImGuiTableFlags_Resizable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Sortable)) == 0)
flags |= ImGuiTableFlags_NoSavedSettings;
// Inherit _NoSavedSettings from top-level window (child windows always have _NoSavedSettings set)
if (outer_window->RootWindow->Flags & ImGuiWindowFlags_NoSavedSettings)
flags |= ImGuiTableFlags_NoSavedSettings;
return flags;
}
ImGuiTable* ImGui::TableFindByID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
return g.Tables.GetByKey(id);
}
// Read about "TABLE SIZING" at the top of this file.
bool ImGui::BeginTable(const char* str_id, int columns_count, ImGuiTableFlags flags, const ImVec2& outer_size, float inner_width)
{
ImGuiID id = GetID(str_id);
return BeginTableEx(str_id, id, columns_count, flags, outer_size, inner_width);
}
bool ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImGuiTableFlags flags, const ImVec2& outer_size, float inner_width)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* outer_window = GetCurrentWindow();
if (outer_window->SkipItems) // Consistent with other tables + beneficial side effect that assert on miscalling EndTable() will be more visible.
return false;
// Sanity checks
IM_ASSERT(columns_count > 0 && columns_count < IMGUI_TABLE_MAX_COLUMNS);
if (flags & ImGuiTableFlags_ScrollX)
IM_ASSERT(inner_width >= 0.0f);
// If an outer size is specified ahead we will be able to early out when not visible. Exact clipping rules may evolve.
const bool use_child_window = (flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY)) != 0;
const ImVec2 avail_size = GetContentRegionAvail();
ImVec2 actual_outer_size = CalcItemSize(outer_size, ImMax(avail_size.x, 1.0f), use_child_window ? ImMax(avail_size.y, 1.0f) : 0.0f);
ImRect outer_rect(outer_window->DC.CursorPos, outer_window->DC.CursorPos + actual_outer_size);
if (use_child_window && IsClippedEx(outer_rect, 0))
{
ItemSize(outer_rect);
return false;
}
// Acquire storage for the table
ImGuiTable* table = g.Tables.GetOrAddByKey(id);
const ImGuiTableFlags table_last_flags = table->Flags;
// Acquire temporary buffers
const int table_idx = g.Tables.GetIndex(table);
if (++g.TablesTempDataStacked > g.TablesTempData.Size)
g.TablesTempData.resize(g.TablesTempDataStacked, ImGuiTableTempData());
ImGuiTableTempData* temp_data = table->TempData = &g.TablesTempData[g.TablesTempDataStacked - 1];
temp_data->TableIndex = table_idx;
table->DrawSplitter = &table->TempData->DrawSplitter;
table->DrawSplitter->Clear();
// Fix flags
table->IsDefaultSizingPolicy = (flags & ImGuiTableFlags_SizingMask_) == 0;
flags = TableFixFlags(flags, outer_window);
// Initialize
const int instance_no = (table->LastFrameActive != g.FrameCount) ? 0 : table->InstanceCurrent + 1;
table->ID = id;
table->Flags = flags;
table->LastFrameActive = g.FrameCount;
table->OuterWindow = table->InnerWindow = outer_window;
table->ColumnsCount = columns_count;
table->IsLayoutLocked = false;
table->InnerWidth = inner_width;
temp_data->UserOuterSize = outer_size;
// Instance data (for instance 0, TableID == TableInstanceID)
ImGuiID instance_id;
table->InstanceCurrent = (ImS16)instance_no;
if (instance_no > 0)
{
IM_ASSERT(table->ColumnsCount == columns_count && "BeginTable(): Cannot change columns count mid-frame while preserving same ID");
if (table->InstanceDataExtra.Size < instance_no)
table->InstanceDataExtra.push_back(ImGuiTableInstanceData());
instance_id = GetIDWithSeed(instance_no, GetIDWithSeed("##Instances", NULL, id)); // Push "##Instance" followed by (int)instance_no in ID stack.
}
else
{
instance_id = id;
}
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
table_instance->TableInstanceID = instance_id;
// When not using a child window, WorkRect.Max will grow as we append contents.
if (use_child_window)
{
// Ensure no vertical scrollbar appears if we only want horizontal one, to make flag consistent
// (we have no other way to disable vertical scrollbar of a window while keeping the horizontal one showing)
ImVec2 override_content_size(FLT_MAX, FLT_MAX);
if ((flags & ImGuiTableFlags_ScrollX) && !(flags & ImGuiTableFlags_ScrollY))
override_content_size.y = FLT_MIN;
// Ensure specified width (when not specified, Stretched columns will act as if the width == OuterWidth and
// never lead to any scrolling). We don't handle inner_width < 0.0f, we could potentially use it to right-align
// based on the right side of the child window work rect, which would require knowing ahead if we are going to
// have decoration taking horizontal spaces (typically a vertical scrollbar).
if ((flags & ImGuiTableFlags_ScrollX) && inner_width > 0.0f)
override_content_size.x = inner_width;
if (override_content_size.x != FLT_MAX || override_content_size.y != FLT_MAX)
SetNextWindowContentSize(ImVec2(override_content_size.x != FLT_MAX ? override_content_size.x : 0.0f, override_content_size.y != FLT_MAX ? override_content_size.y : 0.0f));
// Reset scroll if we are reactivating it
if ((table_last_flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY)) == 0)
SetNextWindowScroll(ImVec2(0.0f, 0.0f));
// Create scrolling region (without border and zero window padding)
ImGuiWindowFlags child_flags = (flags & ImGuiTableFlags_ScrollX) ? ImGuiWindowFlags_HorizontalScrollbar : ImGuiWindowFlags_None;
BeginChildEx(name, instance_id, outer_rect.GetSize(), false, child_flags);
table->InnerWindow = g.CurrentWindow;
table->WorkRect = table->InnerWindow->WorkRect;
table->OuterRect = table->InnerWindow->Rect();
table->InnerRect = table->InnerWindow->InnerRect;
IM_ASSERT(table->InnerWindow->WindowPadding.x == 0.0f && table->InnerWindow->WindowPadding.y == 0.0f && table->InnerWindow->WindowBorderSize == 0.0f);
// When using multiple instances, ensure they have the same amount of horizontal decorations (aka vertical scrollbar) so stretched columns can be aligned)
if (instance_no == 0)
{
table->HasScrollbarYPrev = table->HasScrollbarYCurr;
table->HasScrollbarYCurr = false;
}
table->HasScrollbarYCurr |= (table->InnerWindow->ScrollMax.y > 0.0f);
}
else
{
// For non-scrolling tables, WorkRect == OuterRect == InnerRect.
// But at this point we do NOT have a correct value for .Max.y (unless a height has been explicitly passed in). It will only be updated in EndTable().
table->WorkRect = table->OuterRect = table->InnerRect = outer_rect;
}
// Push a standardized ID for both child-using and not-child-using tables
PushOverrideID(id);
if (instance_no > 0)
PushOverrideID(instance_id); // FIXME: Somehow this is not resolved by stack-tool, even tho GetIDWithSeed() submitted the symbol.
// Backup a copy of host window members we will modify
ImGuiWindow* inner_window = table->InnerWindow;
table->HostIndentX = inner_window->DC.Indent.x;
table->HostClipRect = inner_window->ClipRect;
table->HostSkipItems = inner_window->SkipItems;
temp_data->HostBackupWorkRect = inner_window->WorkRect;
temp_data->HostBackupParentWorkRect = inner_window->ParentWorkRect;
temp_data->HostBackupColumnsOffset = outer_window->DC.ColumnsOffset;
temp_data->HostBackupPrevLineSize = inner_window->DC.PrevLineSize;
temp_data->HostBackupCurrLineSize = inner_window->DC.CurrLineSize;
temp_data->HostBackupCursorMaxPos = inner_window->DC.CursorMaxPos;
temp_data->HostBackupItemWidth = outer_window->DC.ItemWidth;
temp_data->HostBackupItemWidthStackSize = outer_window->DC.ItemWidthStack.Size;
inner_window->DC.PrevLineSize = inner_window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
// Padding and Spacing
// - None ........Content..... Pad .....Content........
// - PadOuter | Pad ..Content..... Pad .....Content.. Pad |
// - PadInner ........Content.. Pad | Pad ..Content........
// - PadOuter+PadInner | Pad ..Content.. Pad | Pad ..Content.. Pad |
const bool pad_outer_x = (flags & ImGuiTableFlags_NoPadOuterX) ? false : (flags & ImGuiTableFlags_PadOuterX) ? true : (flags & ImGuiTableFlags_BordersOuterV) != 0;
const bool pad_inner_x = (flags & ImGuiTableFlags_NoPadInnerX) ? false : true;
const float inner_spacing_for_border = (flags & ImGuiTableFlags_BordersInnerV) ? TABLE_BORDER_SIZE : 0.0f;
const float inner_spacing_explicit = (pad_inner_x && (flags & ImGuiTableFlags_BordersInnerV) == 0) ? g.Style.CellPadding.x : 0.0f;
const float inner_padding_explicit = (pad_inner_x && (flags & ImGuiTableFlags_BordersInnerV) != 0) ? g.Style.CellPadding.x : 0.0f;
table->CellSpacingX1 = inner_spacing_explicit + inner_spacing_for_border;
table->CellSpacingX2 = inner_spacing_explicit;
table->CellPaddingX = inner_padding_explicit;
table->CellPaddingY = g.Style.CellPadding.y;
const float outer_padding_for_border = (flags & ImGuiTableFlags_BordersOuterV) ? TABLE_BORDER_SIZE : 0.0f;
const float outer_padding_explicit = pad_outer_x ? g.Style.CellPadding.x : 0.0f;
table->OuterPaddingX = (outer_padding_for_border + outer_padding_explicit) - table->CellPaddingX;
table->CurrentColumn = -1;
table->CurrentRow = -1;
table->RowBgColorCounter = 0;
table->LastRowFlags = ImGuiTableRowFlags_None;
table->InnerClipRect = (inner_window == outer_window) ? table->WorkRect : inner_window->ClipRect;
table->InnerClipRect.ClipWith(table->WorkRect); // We need this to honor inner_width
table->InnerClipRect.ClipWithFull(table->HostClipRect);
table->InnerClipRect.Max.y = (flags & ImGuiTableFlags_NoHostExtendY) ? ImMin(table->InnerClipRect.Max.y, inner_window->WorkRect.Max.y) : inner_window->ClipRect.Max.y;
table->RowPosY1 = table->RowPosY2 = table->WorkRect.Min.y; // This is needed somehow
table->RowTextBaseline = 0.0f; // This will be cleared again by TableBeginRow()
table->FreezeRowsRequest = table->FreezeRowsCount = 0; // This will be setup by TableSetupScrollFreeze(), if any
table->FreezeColumnsRequest = table->FreezeColumnsCount = 0;
table->IsUnfrozenRows = true;
table->DeclColumnsCount = 0;
// Using opaque colors facilitate overlapping elements of the grid
table->BorderColorStrong = GetColorU32(ImGuiCol_TableBorderStrong);
table->BorderColorLight = GetColorU32(ImGuiCol_TableBorderLight);
// Make table current
g.CurrentTable = table;
outer_window->DC.CurrentTableIdx = table_idx;
if (inner_window != outer_window) // So EndChild() within the inner window can restore the table properly.
inner_window->DC.CurrentTableIdx = table_idx;
if ((table_last_flags & ImGuiTableFlags_Reorderable) && (flags & ImGuiTableFlags_Reorderable) == 0)
table->IsResetDisplayOrderRequest = true;
// Mark as used
if (table_idx >= g.TablesLastTimeActive.Size)
g.TablesLastTimeActive.resize(table_idx + 1, -1.0f);
g.TablesLastTimeActive[table_idx] = (float)g.Time;
temp_data->LastTimeActive = (float)g.Time;
table->MemoryCompacted = false;
// Setup memory buffer (clear data if columns count changed)
ImGuiTableColumn* old_columns_to_preserve = NULL;
void* old_columns_raw_data = NULL;
const int old_columns_count = table->Columns.size();
if (old_columns_count != 0 && old_columns_count != columns_count)
{
// Attempt to preserve width on column count change (#4046)
old_columns_to_preserve = table->Columns.Data;
old_columns_raw_data = table->RawData;
table->RawData = NULL;
}
if (table->RawData == NULL)
{
TableBeginInitMemory(table, columns_count);
table->IsInitializing = table->IsSettingsRequestLoad = true;
}
if (table->IsResetAllRequest)
TableResetSettings(table);
if (table->IsInitializing)
{
// Initialize
table->SettingsOffset = -1;
table->IsSortSpecsDirty = true;
table->InstanceInteracted = -1;
table->ContextPopupColumn = -1;
table->ReorderColumn = table->ResizedColumn = table->LastResizedColumn = -1;
table->AutoFitSingleColumn = -1;
table->HoveredColumnBody = table->HoveredColumnBorder = -1;
for (int n = 0; n < columns_count; n++)
{
ImGuiTableColumn* column = &table->Columns[n];
if (old_columns_to_preserve && n < old_columns_count)
{
// FIXME: We don't attempt to preserve column order in this path.
*column = old_columns_to_preserve[n];
}
else
{
float width_auto = column->WidthAuto;
*column = ImGuiTableColumn();
column->WidthAuto = width_auto;
column->IsPreserveWidthAuto = true; // Preserve WidthAuto when reinitializing a live table: not technically necessary but remove a visible flicker
column->IsEnabled = column->IsUserEnabled = column->IsUserEnabledNextFrame = true;
}
column->DisplayOrder = table->DisplayOrderToIndex[n] = (ImGuiTableColumnIdx)n;
}
}
if (old_columns_raw_data)
IM_FREE(old_columns_raw_data);
// Load settings
if (table->IsSettingsRequestLoad)
TableLoadSettings(table);
// Handle DPI/font resize
// This is designed to facilitate DPI changes with the assumption that e.g. style.CellPadding has been scaled as well.
// It will also react to changing fonts with mixed results. It doesn't need to be perfect but merely provide a decent transition.
// FIXME-DPI: Provide consistent standards for reference size. Perhaps using g.CurrentDpiScale would be more self explanatory.
// This is will lead us to non-rounded WidthRequest in columns, which should work but is a poorly tested path.
const float new_ref_scale_unit = g.FontSize; // g.Font->GetCharAdvance('A') ?
if (table->RefScale != 0.0f && table->RefScale != new_ref_scale_unit)
{
const float scale_factor = new_ref_scale_unit / table->RefScale;
//IMGUI_DEBUG_PRINT("[table] %08X RefScaleUnit %.3f -> %.3f, scaling width by %.3f\n", table->ID, table->RefScaleUnit, new_ref_scale_unit, scale_factor);
for (int n = 0; n < columns_count; n++)
table->Columns[n].WidthRequest = table->Columns[n].WidthRequest * scale_factor;
}
table->RefScale = new_ref_scale_unit;
// Disable output until user calls TableNextRow() or TableNextColumn() leading to the TableUpdateLayout() call..
// This is not strictly necessary but will reduce cases were "out of table" output will be misleading to the user.
// Because we cannot safely assert in EndTable() when no rows have been created, this seems like our best option.
inner_window->SkipItems = true;
// Clear names
// At this point the ->NameOffset field of each column will be invalid until TableUpdateLayout() or the first call to TableSetupColumn()
if (table->ColumnsNames.Buf.Size > 0)
table->ColumnsNames.Buf.resize(0);
// Apply queued resizing/reordering/hiding requests
TableBeginApplyRequests(table);
return true;
}
// For reference, the average total _allocation count_ for a table is:
// + 0 (for ImGuiTable instance, we are pooling allocations in g.Tables)
// + 1 (for table->RawData allocated below)
// + 1 (for table->ColumnsNames, if names are used)
// Shared allocations per number of nested tables
// + 1 (for table->Splitter._Channels)
// + 2 * active_channels_count (for ImDrawCmd and ImDrawIdx buffers inside channels)
// Where active_channels_count is variable but often == columns_count or columns_count + 1, see TableSetupDrawChannels() for details.
// Unused channels don't perform their +2 allocations.
void ImGui::TableBeginInitMemory(ImGuiTable* table, int columns_count)
{
// Allocate single buffer for our arrays
const int columns_bit_array_size = (int)ImBitArrayGetStorageSizeInBytes(columns_count);
ImSpanAllocator<6> span_allocator;
span_allocator.Reserve(0, columns_count * sizeof(ImGuiTableColumn));
span_allocator.Reserve(1, columns_count * sizeof(ImGuiTableColumnIdx));
span_allocator.Reserve(2, columns_count * sizeof(ImGuiTableCellData), 4);
for (int n = 3; n < 6; n++)
span_allocator.Reserve(n, columns_bit_array_size);
table->RawData = IM_ALLOC(span_allocator.GetArenaSizeInBytes());
memset(table->RawData, 0, span_allocator.GetArenaSizeInBytes());
span_allocator.SetArenaBasePtr(table->RawData);
span_allocator.GetSpan(0, &table->Columns);
span_allocator.GetSpan(1, &table->DisplayOrderToIndex);
span_allocator.GetSpan(2, &table->RowCellData);
table->EnabledMaskByDisplayOrder = (ImU32*)span_allocator.GetSpanPtrBegin(3);
table->EnabledMaskByIndex = (ImU32*)span_allocator.GetSpanPtrBegin(4);
table->VisibleMaskByIndex = (ImU32*)span_allocator.GetSpanPtrBegin(5);
}
// Apply queued resizing/reordering/hiding requests
void ImGui::TableBeginApplyRequests(ImGuiTable* table)
{
// Handle resizing request
// (We process this at the first TableBegin of the frame)
// FIXME-TABLE: Contains columns if our work area doesn't allow for scrolling?
if (table->InstanceCurrent == 0)
{
if (table->ResizedColumn != -1 && table->ResizedColumnNextWidth != FLT_MAX)
TableSetColumnWidth(table->ResizedColumn, table->ResizedColumnNextWidth);
table->LastResizedColumn = table->ResizedColumn;
table->ResizedColumnNextWidth = FLT_MAX;
table->ResizedColumn = -1;
// Process auto-fit for single column, which is a special case for stretch columns and fixed columns with FixedSame policy.
// FIXME-TABLE: Would be nice to redistribute available stretch space accordingly to other weights, instead of giving it all to siblings.
if (table->AutoFitSingleColumn != -1)
{
TableSetColumnWidth(table->AutoFitSingleColumn, table->Columns[table->AutoFitSingleColumn].WidthAuto);
table->AutoFitSingleColumn = -1;
}
}
// Handle reordering request
// Note: we don't clear ReorderColumn after handling the request.
if (table->InstanceCurrent == 0)
{
if (table->HeldHeaderColumn == -1 && table->ReorderColumn != -1)
table->ReorderColumn = -1;
table->HeldHeaderColumn = -1;
if (table->ReorderColumn != -1 && table->ReorderColumnDir != 0)
{
// We need to handle reordering across hidden columns.
// In the configuration below, moving C to the right of E will lead to:
// ... C [D] E ---> ... [D] E C (Column name/index)
// ... 2 3 4 ... 2 3 4 (Display order)
const int reorder_dir = table->ReorderColumnDir;
IM_ASSERT(reorder_dir == -1 || reorder_dir == +1);
IM_ASSERT(table->Flags & ImGuiTableFlags_Reorderable);
ImGuiTableColumn* src_column = &table->Columns[table->ReorderColumn];
ImGuiTableColumn* dst_column = &table->Columns[(reorder_dir == -1) ? src_column->PrevEnabledColumn : src_column->NextEnabledColumn];
IM_UNUSED(dst_column);
const int src_order = src_column->DisplayOrder;
const int dst_order = dst_column->DisplayOrder;
src_column->DisplayOrder = (ImGuiTableColumnIdx)dst_order;
for (int order_n = src_order + reorder_dir; order_n != dst_order + reorder_dir; order_n += reorder_dir)
table->Columns[table->DisplayOrderToIndex[order_n]].DisplayOrder -= (ImGuiTableColumnIdx)reorder_dir;
IM_ASSERT(dst_column->DisplayOrder == dst_order - reorder_dir);
// Display order is stored in both columns->IndexDisplayOrder and table->DisplayOrder[],
// rebuild the later from the former.
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
table->DisplayOrderToIndex[table->Columns[column_n].DisplayOrder] = (ImGuiTableColumnIdx)column_n;
table->ReorderColumnDir = 0;
table->IsSettingsDirty = true;
}
}
// Handle display order reset request
if (table->IsResetDisplayOrderRequest)
{
for (int n = 0; n < table->ColumnsCount; n++)
table->DisplayOrderToIndex[n] = table->Columns[n].DisplayOrder = (ImGuiTableColumnIdx)n;
table->IsResetDisplayOrderRequest = false;
table->IsSettingsDirty = true;
}
}
// Adjust flags: default width mode + stretch columns are not allowed when auto extending
static void TableSetupColumnFlags(ImGuiTable* table, ImGuiTableColumn* column, ImGuiTableColumnFlags flags_in)
{
ImGuiTableColumnFlags flags = flags_in;
// Sizing Policy
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0)
{
const ImGuiTableFlags table_sizing_policy = (table->Flags & ImGuiTableFlags_SizingMask_);
if (table_sizing_policy == ImGuiTableFlags_SizingFixedFit || table_sizing_policy == ImGuiTableFlags_SizingFixedSame)
flags |= ImGuiTableColumnFlags_WidthFixed;
else
flags |= ImGuiTableColumnFlags_WidthStretch;
}
else
{
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiTableColumnFlags_WidthMask_)); // Check that only 1 of each set is used.
}
// Resize
if ((table->Flags & ImGuiTableFlags_Resizable) == 0)
flags |= ImGuiTableColumnFlags_NoResize;
// Sorting
if ((flags & ImGuiTableColumnFlags_NoSortAscending) && (flags & ImGuiTableColumnFlags_NoSortDescending))
flags |= ImGuiTableColumnFlags_NoSort;
// Indentation
if ((flags & ImGuiTableColumnFlags_IndentMask_) == 0)
flags |= (table->Columns.index_from_ptr(column) == 0) ? ImGuiTableColumnFlags_IndentEnable : ImGuiTableColumnFlags_IndentDisable;
// Alignment
//if ((flags & ImGuiTableColumnFlags_AlignMask_) == 0)
// flags |= ImGuiTableColumnFlags_AlignCenter;
//IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiTableColumnFlags_AlignMask_)); // Check that only 1 of each set is used.
// Preserve status flags
column->Flags = flags | (column->Flags & ImGuiTableColumnFlags_StatusMask_);
// Build an ordered list of available sort directions
column->SortDirectionsAvailCount = column->SortDirectionsAvailMask = column->SortDirectionsAvailList = 0;
if (table->Flags & ImGuiTableFlags_Sortable)
{
int count = 0, mask = 0, list = 0;
if ((flags & ImGuiTableColumnFlags_PreferSortAscending) != 0 && (flags & ImGuiTableColumnFlags_NoSortAscending) == 0) { mask |= 1 << ImGuiSortDirection_Ascending; list |= ImGuiSortDirection_Ascending << (count << 1); count++; }
if ((flags & ImGuiTableColumnFlags_PreferSortDescending) != 0 && (flags & ImGuiTableColumnFlags_NoSortDescending) == 0) { mask |= 1 << ImGuiSortDirection_Descending; list |= ImGuiSortDirection_Descending << (count << 1); count++; }
if ((flags & ImGuiTableColumnFlags_PreferSortAscending) == 0 && (flags & ImGuiTableColumnFlags_NoSortAscending) == 0) { mask |= 1 << ImGuiSortDirection_Ascending; list |= ImGuiSortDirection_Ascending << (count << 1); count++; }
if ((flags & ImGuiTableColumnFlags_PreferSortDescending) == 0 && (flags & ImGuiTableColumnFlags_NoSortDescending) == 0) { mask |= 1 << ImGuiSortDirection_Descending; list |= ImGuiSortDirection_Descending << (count << 1); count++; }
if ((table->Flags & ImGuiTableFlags_SortTristate) || count == 0) { mask |= 1 << ImGuiSortDirection_None; count++; }
column->SortDirectionsAvailList = (ImU8)list;
column->SortDirectionsAvailMask = (ImU8)mask;
column->SortDirectionsAvailCount = (ImU8)count;
ImGui::TableFixColumnSortDirection(table, column);
}
}
// Layout columns for the frame. This is in essence the followup to BeginTable().
// Runs on the first call to TableNextRow(), to give a chance for TableSetupColumn() to be called first.
// FIXME-TABLE: Our width (and therefore our WorkRect) will be minimal in the first frame for _WidthAuto columns.
// Increase feedback side-effect with widgets relying on WorkRect.Max.x... Maybe provide a default distribution for _WidthAuto columns?
void ImGui::TableUpdateLayout(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(table->IsLayoutLocked == false);
const ImGuiTableFlags table_sizing_policy = (table->Flags & ImGuiTableFlags_SizingMask_);
table->IsDefaultDisplayOrder = true;
table->ColumnsEnabledCount = 0;
ImBitArrayClearAllBits(table->EnabledMaskByIndex, table->ColumnsCount);
ImBitArrayClearAllBits(table->EnabledMaskByDisplayOrder, table->ColumnsCount);
table->LeftMostEnabledColumn = -1;
table->MinColumnWidth = ImMax(1.0f, g.Style.FramePadding.x * 1.0f); // g.Style.ColumnsMinSpacing; // FIXME-TABLE
// [Part 1] Apply/lock Enabled and Order states. Calculate auto/ideal width for columns. Count fixed/stretch columns.
// Process columns in their visible orders as we are building the Prev/Next indices.
int count_fixed = 0; // Number of columns that have fixed sizing policies
int count_stretch = 0; // Number of columns that have stretch sizing policies
int prev_visible_column_idx = -1;
bool has_auto_fit_request = false;
bool has_resizable = false;
float stretch_sum_width_auto = 0.0f;
float fixed_max_width_auto = 0.0f;
for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
{
const int column_n = table->DisplayOrderToIndex[order_n];
if (column_n != order_n)
table->IsDefaultDisplayOrder = false;
ImGuiTableColumn* column = &table->Columns[column_n];
// Clear column setup if not submitted by user. Currently we make it mandatory to call TableSetupColumn() every frame.
// It would easily work without but we're not ready to guarantee it since e.g. names need resubmission anyway.
// We take a slight shortcut but in theory we could be calling TableSetupColumn() here with dummy values, it should yield the same effect.
if (table->DeclColumnsCount <= column_n)
{
TableSetupColumnFlags(table, column, ImGuiTableColumnFlags_None);
column->NameOffset = -1;
column->UserID = 0;
column->InitStretchWeightOrWidth = -1.0f;
}
// Update Enabled state, mark settings and sort specs dirty
if (!(table->Flags & ImGuiTableFlags_Hideable) || (column->Flags & ImGuiTableColumnFlags_NoHide))
column->IsUserEnabledNextFrame = true;
if (column->IsUserEnabled != column->IsUserEnabledNextFrame)
{
column->IsUserEnabled = column->IsUserEnabledNextFrame;
table->IsSettingsDirty = true;
}
column->IsEnabled = column->IsUserEnabled && (column->Flags & ImGuiTableColumnFlags_Disabled) == 0;
if (column->SortOrder != -1 && !column->IsEnabled)
table->IsSortSpecsDirty = true;
if (column->SortOrder > 0 && !(table->Flags & ImGuiTableFlags_SortMulti))
table->IsSortSpecsDirty = true;
// Auto-fit unsized columns
const bool start_auto_fit = (column->Flags & ImGuiTableColumnFlags_WidthFixed) ? (column->WidthRequest < 0.0f) : (column->StretchWeight < 0.0f);
if (start_auto_fit)
column->AutoFitQueue = column->CannotSkipItemsQueue = (1 << 3) - 1; // Fit for three frames
if (!column->IsEnabled)
{
column->IndexWithinEnabledSet = -1;
continue;
}
// Mark as enabled and link to previous/next enabled column
column->PrevEnabledColumn = (ImGuiTableColumnIdx)prev_visible_column_idx;
column->NextEnabledColumn = -1;
if (prev_visible_column_idx != -1)
table->Columns[prev_visible_column_idx].NextEnabledColumn = (ImGuiTableColumnIdx)column_n;
else
table->LeftMostEnabledColumn = (ImGuiTableColumnIdx)column_n;
column->IndexWithinEnabledSet = table->ColumnsEnabledCount++;
ImBitArraySetBit(table->EnabledMaskByIndex, column_n);
ImBitArraySetBit(table->EnabledMaskByDisplayOrder, column->DisplayOrder);
prev_visible_column_idx = column_n;
IM_ASSERT(column->IndexWithinEnabledSet <= column->DisplayOrder);
// Calculate ideal/auto column width (that's the width required for all contents to be visible without clipping)
// Combine width from regular rows + width from headers unless requested not to.
if (!column->IsPreserveWidthAuto)
column->WidthAuto = TableGetColumnWidthAuto(table, column);
// Non-resizable columns keep their requested width (apply user value regardless of IsPreserveWidthAuto)
const bool column_is_resizable = (column->Flags & ImGuiTableColumnFlags_NoResize) == 0;
if (column_is_resizable)
has_resizable = true;
if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f && !column_is_resizable)
column->WidthAuto = column->InitStretchWeightOrWidth;
if (column->AutoFitQueue != 0x00)
has_auto_fit_request = true;
if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
{
stretch_sum_width_auto += column->WidthAuto;
count_stretch++;
}
else
{
fixed_max_width_auto = ImMax(fixed_max_width_auto, column->WidthAuto);
count_fixed++;
}
}
if ((table->Flags & ImGuiTableFlags_Sortable) && table->SortSpecsCount == 0 && !(table->Flags & ImGuiTableFlags_SortTristate))
table->IsSortSpecsDirty = true;
table->RightMostEnabledColumn = (ImGuiTableColumnIdx)prev_visible_column_idx;
IM_ASSERT(table->LeftMostEnabledColumn >= 0 && table->RightMostEnabledColumn >= 0);
// [Part 2] Disable child window clipping while fitting columns. This is not strictly necessary but makes it possible
// to avoid the column fitting having to wait until the first visible frame of the child container (may or not be a good thing).
// FIXME-TABLE: for always auto-resizing columns may not want to do that all the time.
if (has_auto_fit_request && table->OuterWindow != table->InnerWindow)
table->InnerWindow->SkipItems = false;
if (has_auto_fit_request)
table->IsSettingsDirty = true;
// [Part 3] Fix column flags and record a few extra information.
float sum_width_requests = 0.0f; // Sum of all width for fixed and auto-resize columns, excluding width contributed by Stretch columns but including spacing/padding.
float stretch_sum_weights = 0.0f; // Sum of all weights for stretch columns.
table->LeftMostStretchedColumn = table->RightMostStretchedColumn = -1;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByIndex, column_n))
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
const bool column_is_resizable = (column->Flags & ImGuiTableColumnFlags_NoResize) == 0;
if (column->Flags & ImGuiTableColumnFlags_WidthFixed)
{
// Apply same widths policy
float width_auto = column->WidthAuto;
if (table_sizing_policy == ImGuiTableFlags_SizingFixedSame && (column->AutoFitQueue != 0x00 || !column_is_resizable))
width_auto = fixed_max_width_auto;
// Apply automatic width
// Latch initial size for fixed columns and update it constantly for auto-resizing column (unless clipped!)
if (column->AutoFitQueue != 0x00)
column->WidthRequest = width_auto;
else if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !column_is_resizable && column->IsRequestOutput)
column->WidthRequest = width_auto;
// FIXME-TABLE: Increase minimum size during init frame to avoid biasing auto-fitting widgets
// (e.g. TextWrapped) too much. Otherwise what tends to happen is that TextWrapped would output a very
// large height (= first frame scrollbar display very off + clipper would skip lots of items).
// This is merely making the side-effect less extreme, but doesn't properly fixes it.
// FIXME: Move this to ->WidthGiven to avoid temporary lossyless?
// FIXME: This break IsPreserveWidthAuto from not flickering if the stored WidthAuto was smaller.
if (column->AutoFitQueue > 0x01 && table->IsInitializing && !column->IsPreserveWidthAuto)
column->WidthRequest = ImMax(column->WidthRequest, table->MinColumnWidth * 4.0f); // FIXME-TABLE: Another constant/scale?
sum_width_requests += column->WidthRequest;
}
else
{
// Initialize stretch weight
if (column->AutoFitQueue != 0x00 || column->StretchWeight < 0.0f || !column_is_resizable)
{
if (column->InitStretchWeightOrWidth > 0.0f)
column->StretchWeight = column->InitStretchWeightOrWidth;
else if (table_sizing_policy == ImGuiTableFlags_SizingStretchProp)
column->StretchWeight = (column->WidthAuto / stretch_sum_width_auto) * count_stretch;
else
column->StretchWeight = 1.0f;
}
stretch_sum_weights += column->StretchWeight;
if (table->LeftMostStretchedColumn == -1 || table->Columns[table->LeftMostStretchedColumn].DisplayOrder > column->DisplayOrder)
table->LeftMostStretchedColumn = (ImGuiTableColumnIdx)column_n;
if (table->RightMostStretchedColumn == -1 || table->Columns[table->RightMostStretchedColumn].DisplayOrder < column->DisplayOrder)
table->RightMostStretchedColumn = (ImGuiTableColumnIdx)column_n;
}
column->IsPreserveWidthAuto = false;
sum_width_requests += table->CellPaddingX * 2.0f;
}
table->ColumnsEnabledFixedCount = (ImGuiTableColumnIdx)count_fixed;
table->ColumnsStretchSumWeights = stretch_sum_weights;
// [Part 4] Apply final widths based on requested widths
const ImRect work_rect = table->WorkRect;
const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
const float width_removed = (table->HasScrollbarYPrev && !table->InnerWindow->ScrollbarY) ? g.Style.ScrollbarSize : 0.0f; // To synchronize decoration width of synched tables with mismatching scrollbar state (#5920)
const float width_avail = ImMax(1.0f, (((table->Flags & ImGuiTableFlags_ScrollX) && table->InnerWidth == 0.0f) ? table->InnerClipRect.GetWidth() : work_rect.GetWidth()) - width_removed);
const float width_avail_for_stretched_columns = width_avail - width_spacings - sum_width_requests;
float width_remaining_for_stretched_columns = width_avail_for_stretched_columns;
table->ColumnsGivenWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByIndex, column_n))
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
// Allocate width for stretched/weighted columns (StretchWeight gets converted into WidthRequest)
if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
{
float weight_ratio = column->StretchWeight / stretch_sum_weights;
column->WidthRequest = IM_FLOOR(ImMax(width_avail_for_stretched_columns * weight_ratio, table->MinColumnWidth) + 0.01f);
width_remaining_for_stretched_columns -= column->WidthRequest;
}
// [Resize Rule 1] The right-most Visible column is not resizable if there is at least one Stretch column
// See additional comments in TableSetColumnWidth().
if (column->NextEnabledColumn == -1 && table->LeftMostStretchedColumn != -1)
column->Flags |= ImGuiTableColumnFlags_NoDirectResize_;
// Assign final width, record width in case we will need to shrink
column->WidthGiven = ImFloor(ImMax(column->WidthRequest, table->MinColumnWidth));
table->ColumnsGivenWidth += column->WidthGiven;
}
// [Part 5] Redistribute stretch remainder width due to rounding (remainder width is < 1.0f * number of Stretch column).
// Using right-to-left distribution (more likely to match resizing cursor).
if (width_remaining_for_stretched_columns >= 1.0f && !(table->Flags & ImGuiTableFlags_PreciseWidths))
for (int order_n = table->ColumnsCount - 1; stretch_sum_weights > 0.0f && width_remaining_for_stretched_columns >= 1.0f && order_n >= 0; order_n--)
{
if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByDisplayOrder, order_n))
continue;
ImGuiTableColumn* column = &table->Columns[table->DisplayOrderToIndex[order_n]];
if (!(column->Flags & ImGuiTableColumnFlags_WidthStretch))
continue;
column->WidthRequest += 1.0f;
column->WidthGiven += 1.0f;
width_remaining_for_stretched_columns -= 1.0f;
}
// Determine if table is hovered which will be used to flag columns as hovered.
// - In principle we'd like to use the equivalent of IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem),
// but because our item is partially submitted at this point we use ItemHoverable() and a workaround (temporarily
// clear ActiveId, which is equivalent to the change provided by _AllowWhenBLockedByActiveItem).
// - This allows columns to be marked as hovered when e.g. clicking a button inside the column, or using drag and drop.
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
table->HoveredColumnBody = -1;
table->HoveredColumnBorder = -1;
const ImRect mouse_hit_rect(table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.Max.x, ImMax(table->OuterRect.Max.y, table->OuterRect.Min.y + table_instance->LastOuterHeight));
const ImGuiID backup_active_id = g.ActiveId;
g.ActiveId = 0;
const bool is_hovering_table = ItemHoverable(mouse_hit_rect, 0);
g.ActiveId = backup_active_id;
// [Part 6] Setup final position, offset, skip/clip states and clipping rectangles, detect hovered column
// Process columns in their visible orders as we are comparing the visible order and adjusting host_clip_rect while looping.
int visible_n = 0;
bool offset_x_frozen = (table->FreezeColumnsCount > 0);
float offset_x = ((table->FreezeColumnsCount > 0) ? table->OuterRect.Min.x : work_rect.Min.x) + table->OuterPaddingX - table->CellSpacingX1;
ImRect host_clip_rect = table->InnerClipRect;
//host_clip_rect.Max.x += table->CellPaddingX + table->CellSpacingX2;
ImBitArrayClearAllBits(table->VisibleMaskByIndex, table->ColumnsCount);
for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
{
const int column_n = table->DisplayOrderToIndex[order_n];
ImGuiTableColumn* column = &table->Columns[column_n];
column->NavLayerCurrent = (ImS8)(table->FreezeRowsCount > 0 ? ImGuiNavLayer_Menu : ImGuiNavLayer_Main); // Use Count NOT request so Header line changes layer when frozen
if (offset_x_frozen && table->FreezeColumnsCount == visible_n)
{
offset_x += work_rect.Min.x - table->OuterRect.Min.x;
offset_x_frozen = false;
}
// Clear status flags
column->Flags &= ~ImGuiTableColumnFlags_StatusMask_;
if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByDisplayOrder, order_n))
{
// Hidden column: clear a few fields and we are done with it for the remainder of the function.
// We set a zero-width clip rect but set Min.y/Max.y properly to not interfere with the clipper.
column->MinX = column->MaxX = column->WorkMinX = column->ClipRect.Min.x = column->ClipRect.Max.x = offset_x;
column->WidthGiven = 0.0f;
column->ClipRect.Min.y = work_rect.Min.y;
column->ClipRect.Max.y = FLT_MAX;
column->ClipRect.ClipWithFull(host_clip_rect);
column->IsVisibleX = column->IsVisibleY = column->IsRequestOutput = false;
column->IsSkipItems = true;
column->ItemWidth = 1.0f;
continue;
}
// Detect hovered column
if (is_hovering_table && g.IO.MousePos.x >= column->ClipRect.Min.x && g.IO.MousePos.x < column->ClipRect.Max.x)
table->HoveredColumnBody = (ImGuiTableColumnIdx)column_n;
// Lock start position
column->MinX = offset_x;
// Lock width based on start position and minimum/maximum width for this position
float max_width = TableGetMaxColumnWidth(table, column_n);
column->WidthGiven = ImMin(column->WidthGiven, max_width);
column->WidthGiven = ImMax(column->WidthGiven, ImMin(column->WidthRequest, table->MinColumnWidth));
column->MaxX = offset_x + column->WidthGiven + table->CellSpacingX1 + table->CellSpacingX2 + table->CellPaddingX * 2.0f;
// Lock other positions
// - ClipRect.Min.x: Because merging draw commands doesn't compare min boundaries, we make ClipRect.Min.x match left bounds to be consistent regardless of merging.
// - ClipRect.Max.x: using WorkMaxX instead of MaxX (aka including padding) makes things more consistent when resizing down, tho slightly detrimental to visibility in very-small column.
// - ClipRect.Max.x: using MaxX makes it easier for header to receive hover highlight with no discontinuity and display sorting arrow.
// - FIXME-TABLE: We want equal width columns to have equal (ClipRect.Max.x - WorkMinX) width, which means ClipRect.max.x cannot stray off host_clip_rect.Max.x else right-most column may appear shorter.
column->WorkMinX = column->MinX + table->CellPaddingX + table->CellSpacingX1;
column->WorkMaxX = column->MaxX - table->CellPaddingX - table->CellSpacingX2; // Expected max
column->ItemWidth = ImFloor(column->WidthGiven * 0.65f);
column->ClipRect.Min.x = column->MinX;
column->ClipRect.Min.y = work_rect.Min.y;
column->ClipRect.Max.x = column->MaxX; //column->WorkMaxX;
column->ClipRect.Max.y = FLT_MAX;
column->ClipRect.ClipWithFull(host_clip_rect);
// Mark column as Clipped (not in sight)
// Note that scrolling tables (where inner_window != outer_window) handle Y clipped earlier in BeginTable() so IsVisibleY really only applies to non-scrolling tables.
// FIXME-TABLE: Because InnerClipRect.Max.y is conservatively ==outer_window->ClipRect.Max.y, we never can mark columns _Above_ the scroll line as not IsVisibleY.
// Taking advantage of LastOuterHeight would yield good results there...
// FIXME-TABLE: Y clipping is disabled because it effectively means not submitting will reduce contents width which is fed to outer_window->DC.CursorMaxPos.x,
// and this may be used (e.g. typically by outer_window using AlwaysAutoResize or outer_window's horizontal scrollbar, but could be something else).
// Possible solution to preserve last known content width for clipped column. Test 'table_reported_size' fails when enabling Y clipping and window is resized small.
column->IsVisibleX = (column->ClipRect.Max.x > column->ClipRect.Min.x);
column->IsVisibleY = true; // (column->ClipRect.Max.y > column->ClipRect.Min.y);
const bool is_visible = column->IsVisibleX; //&& column->IsVisibleY;
if (is_visible)
ImBitArraySetBit(table->VisibleMaskByIndex, column_n);
// Mark column as requesting output from user. Note that fixed + non-resizable sets are auto-fitting at all times and therefore always request output.
column->IsRequestOutput = is_visible || column->AutoFitQueue != 0 || column->CannotSkipItemsQueue != 0;
// Mark column as SkipItems (ignoring all items/layout)
column->IsSkipItems = !column->IsEnabled || table->HostSkipItems;
if (column->IsSkipItems)
IM_ASSERT(!is_visible);
// Update status flags
column->Flags |= ImGuiTableColumnFlags_IsEnabled;
if (is_visible)
column->Flags |= ImGuiTableColumnFlags_IsVisible;
if (column->SortOrder != -1)
column->Flags |= ImGuiTableColumnFlags_IsSorted;
if (table->HoveredColumnBody == column_n)
column->Flags |= ImGuiTableColumnFlags_IsHovered;
// Alignment
// FIXME-TABLE: This align based on the whole column width, not per-cell, and therefore isn't useful in
// many cases (to be able to honor this we might be able to store a log of cells width, per row, for
// visible rows, but nav/programmatic scroll would have visible artifacts.)
//if (column->Flags & ImGuiTableColumnFlags_AlignRight)
// column->WorkMinX = ImMax(column->WorkMinX, column->MaxX - column->ContentWidthRowsUnfrozen);
//else if (column->Flags & ImGuiTableColumnFlags_AlignCenter)
// column->WorkMinX = ImLerp(column->WorkMinX, ImMax(column->StartX, column->MaxX - column->ContentWidthRowsUnfrozen), 0.5f);
// Reset content width variables
column->ContentMaxXFrozen = column->ContentMaxXUnfrozen = column->WorkMinX;
column->ContentMaxXHeadersUsed = column->ContentMaxXHeadersIdeal = column->WorkMinX;
// Don't decrement auto-fit counters until container window got a chance to submit its items
if (table->HostSkipItems == false)
{
column->AutoFitQueue >>= 1;
column->CannotSkipItemsQueue >>= 1;
}
if (visible_n < table->FreezeColumnsCount)
host_clip_rect.Min.x = ImClamp(column->MaxX + TABLE_BORDER_SIZE, host_clip_rect.Min.x, host_clip_rect.Max.x);
offset_x += column->WidthGiven + table->CellSpacingX1 + table->CellSpacingX2 + table->CellPaddingX * 2.0f;
visible_n++;
}
// [Part 7] Detect/store when we are hovering the unused space after the right-most column (so e.g. context menus can react on it)
// Clear Resizable flag if none of our column are actually resizable (either via an explicit _NoResize flag, either
// because of using _WidthAuto/_WidthStretch). This will hide the resizing option from the context menu.
const float unused_x1 = ImMax(table->WorkRect.Min.x, table->Columns[table->RightMostEnabledColumn].ClipRect.Max.x);
if (is_hovering_table && table->HoveredColumnBody == -1)
{
if (g.IO.MousePos.x >= unused_x1)
table->HoveredColumnBody = (ImGuiTableColumnIdx)table->ColumnsCount;
}
if (has_resizable == false && (table->Flags & ImGuiTableFlags_Resizable))
table->Flags &= ~ImGuiTableFlags_Resizable;
// [Part 8] Lock actual OuterRect/WorkRect right-most position.
// This is done late to handle the case of fixed-columns tables not claiming more widths that they need.
// Because of this we are careful with uses of WorkRect and InnerClipRect before this point.
if (table->RightMostStretchedColumn != -1)
table->Flags &= ~ImGuiTableFlags_NoHostExtendX;
if (table->Flags & ImGuiTableFlags_NoHostExtendX)
{
table->OuterRect.Max.x = table->WorkRect.Max.x = unused_x1;
table->InnerClipRect.Max.x = ImMin(table->InnerClipRect.Max.x, unused_x1);
}
table->InnerWindow->ParentWorkRect = table->WorkRect;
table->BorderX1 = table->InnerClipRect.Min.x;// +((table->Flags & ImGuiTableFlags_BordersOuter) ? 0.0f : -1.0f);
table->BorderX2 = table->InnerClipRect.Max.x;// +((table->Flags & ImGuiTableFlags_BordersOuter) ? 0.0f : +1.0f);
// [Part 9] Allocate draw channels and setup background cliprect
TableSetupDrawChannels(table);
// [Part 10] Hit testing on borders
if (table->Flags & ImGuiTableFlags_Resizable)
TableUpdateBorders(table);
table_instance->LastFirstRowHeight = 0.0f;
table->IsLayoutLocked = true;
table->IsUsingHeaders = false;
// [Part 11] Context menu
if (TableBeginContextMenuPopup(table))
{
TableDrawContextMenu(table);
EndPopup();
}
// [Part 12] Sanitize and build sort specs before we have a change to use them for display.
// This path will only be exercised when sort specs are modified before header rows (e.g. init or visibility change)
if (table->IsSortSpecsDirty && (table->Flags & ImGuiTableFlags_Sortable))
TableSortSpecsBuild(table);
// [Part 13] Setup inner window decoration size (for scrolling / nav tracking to properly take account of frozen rows/columns)
if (table->FreezeColumnsRequest > 0)
table->InnerWindow->DecoInnerSizeX1 = table->Columns[table->DisplayOrderToIndex[table->FreezeColumnsRequest - 1]].MaxX - table->OuterRect.Min.x;
if (table->FreezeRowsRequest > 0)
table->InnerWindow->DecoInnerSizeY1 = table_instance->LastFrozenHeight;
table_instance->LastFrozenHeight = 0.0f;
// Initial state
ImGuiWindow* inner_window = table->InnerWindow;
if (table->Flags & ImGuiTableFlags_NoClip)
table->DrawSplitter->SetCurrentChannel(inner_window->DrawList, TABLE_DRAW_CHANNEL_NOCLIP);
else
inner_window->DrawList->PushClipRect(inner_window->ClipRect.Min, inner_window->ClipRect.Max, false);
}
// Process hit-testing on resizing borders. Actual size change will be applied in EndTable()
// - Set table->HoveredColumnBorder with a short delay/timer to reduce feedback noise
// - Submit ahead of table contents and header, use ImGuiButtonFlags_AllowItemOverlap to prioritize widgets
// overlapping the same area.
void ImGui::TableUpdateBorders(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(table->Flags & ImGuiTableFlags_Resizable);
// At this point OuterRect height may be zero or under actual final height, so we rely on temporal coherency and
// use the final height from last frame. Because this is only affecting _interaction_ with columns, it is not
// really problematic (whereas the actual visual will be displayed in EndTable() and using the current frame height).
// Actual columns highlight/render will be performed in EndTable() and not be affected.
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
const float hit_half_width = TABLE_RESIZE_SEPARATOR_HALF_THICKNESS;
const float hit_y1 = table->OuterRect.Min.y;
const float hit_y2_body = ImMax(table->OuterRect.Max.y, hit_y1 + table_instance->LastOuterHeight);
const float hit_y2_head = hit_y1 + table_instance->LastFirstRowHeight;
for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
{
if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByDisplayOrder, order_n))
continue;
const int column_n = table->DisplayOrderToIndex[order_n];
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->Flags & (ImGuiTableColumnFlags_NoResize | ImGuiTableColumnFlags_NoDirectResize_))
continue;
// ImGuiTableFlags_NoBordersInBodyUntilResize will be honored in TableDrawBorders()
const float border_y2_hit = (table->Flags & ImGuiTableFlags_NoBordersInBody) ? hit_y2_head : hit_y2_body;
if ((table->Flags & ImGuiTableFlags_NoBordersInBody) && table->IsUsingHeaders == false)
continue;
if (!column->IsVisibleX && table->LastResizedColumn != column_n)
continue;
ImGuiID column_id = TableGetColumnResizeID(table, column_n, table->InstanceCurrent);
ImRect hit_rect(column->MaxX - hit_half_width, hit_y1, column->MaxX + hit_half_width, border_y2_hit);
ItemAdd(hit_rect, column_id, NULL, ImGuiItemFlags_NoNav);
//GetForegroundDrawList()->AddRect(hit_rect.Min, hit_rect.Max, IM_COL32(255, 0, 0, 100));
bool hovered = false, held = false;
bool pressed = ButtonBehavior(hit_rect, column_id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap | ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnDoubleClick | ImGuiButtonFlags_NoNavFocus);
if (pressed && IsMouseDoubleClicked(0))
{
TableSetColumnWidthAutoSingle(table, column_n);
ClearActiveID();
held = hovered = false;
}
if (held)
{
if (table->LastResizedColumn == -1)
table->ResizeLockMinContentsX2 = table->RightMostEnabledColumn != -1 ? table->Columns[table->RightMostEnabledColumn].MaxX : -FLT_MAX;
table->ResizedColumn = (ImGuiTableColumnIdx)column_n;
table->InstanceInteracted = table->InstanceCurrent;
}
if ((hovered && g.HoveredIdTimer > TABLE_RESIZE_SEPARATOR_FEEDBACK_TIMER) || held)
{
table->HoveredColumnBorder = (ImGuiTableColumnIdx)column_n;
SetMouseCursor(ImGuiMouseCursor_ResizeEW);
}
}
}
void ImGui::EndTable()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Only call EndTable() if BeginTable() returns true!");
// This assert would be very useful to catch a common error... unfortunately it would probably trigger in some
// cases, and for consistency user may sometimes output empty tables (and still benefit from e.g. outer border)
//IM_ASSERT(table->IsLayoutLocked && "Table unused: never called TableNextRow(), is that the intent?");
// If the user never got to call TableNextRow() or TableNextColumn(), we call layout ourselves to ensure all our
// code paths are consistent (instead of just hoping that TableBegin/TableEnd will work), get borders drawn, etc.
if (!table->IsLayoutLocked)
TableUpdateLayout(table);
const ImGuiTableFlags flags = table->Flags;
ImGuiWindow* inner_window = table->InnerWindow;
ImGuiWindow* outer_window = table->OuterWindow;
ImGuiTableTempData* temp_data = table->TempData;
IM_ASSERT(inner_window == g.CurrentWindow);
IM_ASSERT(outer_window == inner_window || outer_window == inner_window->ParentWindow);
if (table->IsInsideRow)
TableEndRow(table);
// Context menu in columns body
if (flags & ImGuiTableFlags_ContextMenuInBody)
if (table->HoveredColumnBody != -1 && !IsAnyItemHovered() && IsMouseReleased(ImGuiMouseButton_Right))
TableOpenContextMenu((int)table->HoveredColumnBody);
// Finalize table height
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
inner_window->DC.PrevLineSize = temp_data->HostBackupPrevLineSize;
inner_window->DC.CurrLineSize = temp_data->HostBackupCurrLineSize;
inner_window->DC.CursorMaxPos = temp_data->HostBackupCursorMaxPos;
const float inner_content_max_y = table->RowPosY2;
IM_ASSERT(table->RowPosY2 == inner_window->DC.CursorPos.y);
if (inner_window != outer_window)
inner_window->DC.CursorMaxPos.y = inner_content_max_y;
else if (!(flags & ImGuiTableFlags_NoHostExtendY))
table->OuterRect.Max.y = table->InnerRect.Max.y = ImMax(table->OuterRect.Max.y, inner_content_max_y); // Patch OuterRect/InnerRect height
table->WorkRect.Max.y = ImMax(table->WorkRect.Max.y, table->OuterRect.Max.y);
table_instance->LastOuterHeight = table->OuterRect.GetHeight();
// Setup inner scrolling range
// FIXME: This ideally should be done earlier, in BeginTable() SetNextWindowContentSize call, just like writing to inner_window->DC.CursorMaxPos.y,
// but since the later is likely to be impossible to do we'd rather update both axises together.
if (table->Flags & ImGuiTableFlags_ScrollX)
{
const float outer_padding_for_border = (table->Flags & ImGuiTableFlags_BordersOuterV) ? TABLE_BORDER_SIZE : 0.0f;
float max_pos_x = table->InnerWindow->DC.CursorMaxPos.x;
if (table->RightMostEnabledColumn != -1)
max_pos_x = ImMax(max_pos_x, table->Columns[table->RightMostEnabledColumn].WorkMaxX + table->CellPaddingX + table->OuterPaddingX - outer_padding_for_border);
if (table->ResizedColumn != -1)
max_pos_x = ImMax(max_pos_x, table->ResizeLockMinContentsX2);
table->InnerWindow->DC.CursorMaxPos.x = max_pos_x;
}
// Pop clipping rect
if (!(flags & ImGuiTableFlags_NoClip))
inner_window->DrawList->PopClipRect();
inner_window->ClipRect = inner_window->DrawList->_ClipRectStack.back();
// Draw borders
if ((flags & ImGuiTableFlags_Borders) != 0)
TableDrawBorders(table);
#if 0
// Strip out dummy channel draw calls
// We have no way to prevent user submitting direct ImDrawList calls into a hidden column (but ImGui:: calls will be clipped out)
// Pros: remove draw calls which will have no effect. since they'll have zero-size cliprect they may be early out anyway.
// Cons: making it harder for users watching metrics/debugger to spot the wasted vertices.
if (table->DummyDrawChannel != (ImGuiTableColumnIdx)-1)
{
ImDrawChannel* dummy_channel = &table->DrawSplitter._Channels[table->DummyDrawChannel];
dummy_channel->_CmdBuffer.resize(0);
dummy_channel->_IdxBuffer.resize(0);
}
#endif
// Flatten channels and merge draw calls
ImDrawListSplitter* splitter = table->DrawSplitter;
splitter->SetCurrentChannel(inner_window->DrawList, 0);
if ((table->Flags & ImGuiTableFlags_NoClip) == 0)
TableMergeDrawChannels(table);
splitter->Merge(inner_window->DrawList);
// Update ColumnsAutoFitWidth to get us ahead for host using our size to auto-resize without waiting for next BeginTable()
float auto_fit_width_for_fixed = 0.0f;
float auto_fit_width_for_stretched = 0.0f;
float auto_fit_width_for_stretched_min = 0.0f;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
if (IM_BITARRAY_TESTBIT(table->EnabledMaskByIndex, column_n))
{
ImGuiTableColumn* column = &table->Columns[column_n];
float column_width_request = ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !(column->Flags & ImGuiTableColumnFlags_NoResize)) ? column->WidthRequest : TableGetColumnWidthAuto(table, column);
if (column->Flags & ImGuiTableColumnFlags_WidthFixed)
auto_fit_width_for_fixed += column_width_request;
else
auto_fit_width_for_stretched += column_width_request;
if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) && (column->Flags & ImGuiTableColumnFlags_NoResize) != 0)
auto_fit_width_for_stretched_min = ImMax(auto_fit_width_for_stretched_min, column_width_request / (column->StretchWeight / table->ColumnsStretchSumWeights));
}
const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
table->ColumnsAutoFitWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount + auto_fit_width_for_fixed + ImMax(auto_fit_width_for_stretched, auto_fit_width_for_stretched_min);
// Update scroll
if ((table->Flags & ImGuiTableFlags_ScrollX) == 0 && inner_window != outer_window)
{
inner_window->Scroll.x = 0.0f;
}
else if (table->LastResizedColumn != -1 && table->ResizedColumn == -1 && inner_window->ScrollbarX && table->InstanceInteracted == table->InstanceCurrent)
{
// When releasing a column being resized, scroll to keep the resulting column in sight
const float neighbor_width_to_keep_visible = table->MinColumnWidth + table->CellPaddingX * 2.0f;
ImGuiTableColumn* column = &table->Columns[table->LastResizedColumn];
if (column->MaxX < table->InnerClipRect.Min.x)
SetScrollFromPosX(inner_window, column->MaxX - inner_window->Pos.x - neighbor_width_to_keep_visible, 1.0f);
else if (column->MaxX > table->InnerClipRect.Max.x)
SetScrollFromPosX(inner_window, column->MaxX - inner_window->Pos.x + neighbor_width_to_keep_visible, 1.0f);
}
// Apply resizing/dragging at the end of the frame
if (table->ResizedColumn != -1 && table->InstanceCurrent == table->InstanceInteracted)
{
ImGuiTableColumn* column = &table->Columns[table->ResizedColumn];
const float new_x2 = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + TABLE_RESIZE_SEPARATOR_HALF_THICKNESS);
const float new_width = ImFloor(new_x2 - column->MinX - table->CellSpacingX1 - table->CellPaddingX * 2.0f);
table->ResizedColumnNextWidth = new_width;
}
// Pop from id stack
IM_ASSERT_USER_ERROR(inner_window->IDStack.back() == table_instance->TableInstanceID, "Mismatching PushID/PopID!");
IM_ASSERT_USER_ERROR(outer_window->DC.ItemWidthStack.Size >= temp_data->HostBackupItemWidthStackSize, "Too many PopItemWidth!");
if (table->InstanceCurrent > 0)
PopID();
PopID();
// Restore window data that we modified
const ImVec2 backup_outer_max_pos = outer_window->DC.CursorMaxPos;
inner_window->WorkRect = temp_data->HostBackupWorkRect;
inner_window->ParentWorkRect = temp_data->HostBackupParentWorkRect;
inner_window->SkipItems = table->HostSkipItems;
outer_window->DC.CursorPos = table->OuterRect.Min;
outer_window->DC.ItemWidth = temp_data->HostBackupItemWidth;
outer_window->DC.ItemWidthStack.Size = temp_data->HostBackupItemWidthStackSize;
outer_window->DC.ColumnsOffset = temp_data->HostBackupColumnsOffset;
// Layout in outer window
// (FIXME: To allow auto-fit and allow desirable effect of SameLine() we dissociate 'used' vs 'ideal' size by overriding
// CursorPosPrevLine and CursorMaxPos manually. That should be a more general layout feature, see same problem e.g. #3414)
if (inner_window != outer_window)
{
EndChild();
}
else
{
ItemSize(table->OuterRect.GetSize());
ItemAdd(table->OuterRect, 0);
}
// Override declared contents width/height to enable auto-resize while not needlessly adding a scrollbar
if (table->Flags & ImGuiTableFlags_NoHostExtendX)
{
// FIXME-TABLE: Could we remove this section?
// ColumnsAutoFitWidth may be one frame ahead here since for Fixed+NoResize is calculated from latest contents
IM_ASSERT((table->Flags & ImGuiTableFlags_ScrollX) == 0);
outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth);
}
else if (temp_data->UserOuterSize.x <= 0.0f)
{
const float decoration_size = (table->Flags & ImGuiTableFlags_ScrollX) ? inner_window->ScrollbarSizes.x : 0.0f;
outer_window->DC.IdealMaxPos.x = ImMax(outer_window->DC.IdealMaxPos.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth + decoration_size - temp_data->UserOuterSize.x);
outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, ImMin(table->OuterRect.Max.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth));
}
else
{
outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, table->OuterRect.Max.x);
}
if (temp_data->UserOuterSize.y <= 0.0f)
{
const float decoration_size = (table->Flags & ImGuiTableFlags_ScrollY) ? inner_window->ScrollbarSizes.y : 0.0f;
outer_window->DC.IdealMaxPos.y = ImMax(outer_window->DC.IdealMaxPos.y, inner_content_max_y + decoration_size - temp_data->UserOuterSize.y);
outer_window->DC.CursorMaxPos.y = ImMax(backup_outer_max_pos.y, ImMin(table->OuterRect.Max.y, inner_content_max_y));
}
else
{
// OuterRect.Max.y may already have been pushed downward from the initial value (unless ImGuiTableFlags_NoHostExtendY is set)
outer_window->DC.CursorMaxPos.y = ImMax(backup_outer_max_pos.y, table->OuterRect.Max.y);
}
// Save settings
if (table->IsSettingsDirty)
TableSaveSettings(table);
table->IsInitializing = false;
// Clear or restore current table, if any
IM_ASSERT(g.CurrentWindow == outer_window && g.CurrentTable == table);
IM_ASSERT(g.TablesTempDataStacked > 0);
temp_data = (--g.TablesTempDataStacked > 0) ? &g.TablesTempData[g.TablesTempDataStacked - 1] : NULL;
g.CurrentTable = temp_data ? g.Tables.GetByIndex(temp_data->TableIndex) : NULL;
if (g.CurrentTable)
{
g.CurrentTable->TempData = temp_data;
g.CurrentTable->DrawSplitter = &temp_data->DrawSplitter;
}
outer_window->DC.CurrentTableIdx = g.CurrentTable ? g.Tables.GetIndex(g.CurrentTable) : -1;
}
// See "COLUMN SIZING POLICIES" comments at the top of this file
// If (init_width_or_weight <= 0.0f) it is ignored
void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, float init_width_or_weight, ImGuiID user_id)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
IM_ASSERT(table->IsLayoutLocked == false && "Need to call call TableSetupColumn() before first row!");
IM_ASSERT((flags & ImGuiTableColumnFlags_StatusMask_) == 0 && "Illegal to pass StatusMask values to TableSetupColumn()");
if (table->DeclColumnsCount >= table->ColumnsCount)
{
IM_ASSERT_USER_ERROR(table->DeclColumnsCount < table->ColumnsCount, "Called TableSetupColumn() too many times!");
return;
}
ImGuiTableColumn* column = &table->Columns[table->DeclColumnsCount];
table->DeclColumnsCount++;
// Assert when passing a width or weight if policy is entirely left to default, to avoid storing width into weight and vice-versa.
// Give a grace to users of ImGuiTableFlags_ScrollX.
if (table->IsDefaultSizingPolicy && (flags & ImGuiTableColumnFlags_WidthMask_) == 0 && (flags & ImGuiTableFlags_ScrollX) == 0)
IM_ASSERT(init_width_or_weight <= 0.0f && "Can only specify width/weight if sizing policy is set explicitly in either Table or Column.");
// When passing a width automatically enforce WidthFixed policy
// (whereas TableSetupColumnFlags would default to WidthAuto if table is not Resizable)
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0 && init_width_or_weight > 0.0f)
if ((table->Flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedFit || (table->Flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedSame)
flags |= ImGuiTableColumnFlags_WidthFixed;
TableSetupColumnFlags(table, column, flags);
column->UserID = user_id;
flags = column->Flags;
// Initialize defaults
column->InitStretchWeightOrWidth = init_width_or_weight;
if (table->IsInitializing)
{
// Init width or weight
if (column->WidthRequest < 0.0f && column->StretchWeight < 0.0f)
{
if ((flags & ImGuiTableColumnFlags_WidthFixed) && init_width_or_weight > 0.0f)
column->WidthRequest = init_width_or_weight;
if (flags & ImGuiTableColumnFlags_WidthStretch)
column->StretchWeight = (init_width_or_weight > 0.0f) ? init_width_or_weight : -1.0f;
// Disable auto-fit if an explicit width/weight has been specified
if (init_width_or_weight > 0.0f)
column->AutoFitQueue = 0x00;
}
// Init default visibility/sort state
if ((flags & ImGuiTableColumnFlags_DefaultHide) && (table->SettingsLoadedFlags & ImGuiTableFlags_Hideable) == 0)
column->IsUserEnabled = column->IsUserEnabledNextFrame = false;
if (flags & ImGuiTableColumnFlags_DefaultSort && (table->SettingsLoadedFlags & ImGuiTableFlags_Sortable) == 0)
{
column->SortOrder = 0; // Multiple columns using _DefaultSort will be reassigned unique SortOrder values when building the sort specs.
column->SortDirection = (column->Flags & ImGuiTableColumnFlags_PreferSortDescending) ? (ImS8)ImGuiSortDirection_Descending : (ImU8)(ImGuiSortDirection_Ascending);
}
}
// Store name (append with zero-terminator in contiguous buffer)
column->NameOffset = -1;
if (label != NULL && label[0] != 0)
{
column->NameOffset = (ImS16)table->ColumnsNames.size();
table->ColumnsNames.append(label, label + strlen(label) + 1);
}
}
// [Public]
void ImGui::TableSetupScrollFreeze(int columns, int rows)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
IM_ASSERT(table->IsLayoutLocked == false && "Need to call TableSetupColumn() before first row!");
IM_ASSERT(columns >= 0 && columns < IMGUI_TABLE_MAX_COLUMNS);
IM_ASSERT(rows >= 0 && rows < 128); // Arbitrary limit
table->FreezeColumnsRequest = (table->Flags & ImGuiTableFlags_ScrollX) ? (ImGuiTableColumnIdx)ImMin(columns, table->ColumnsCount) : 0;
table->FreezeColumnsCount = (table->InnerWindow->Scroll.x != 0.0f) ? table->FreezeColumnsRequest : 0;
table->FreezeRowsRequest = (table->Flags & ImGuiTableFlags_ScrollY) ? (ImGuiTableColumnIdx)rows : 0;
table->FreezeRowsCount = (table->InnerWindow->Scroll.y != 0.0f) ? table->FreezeRowsRequest : 0;
table->IsUnfrozenRows = (table->FreezeRowsCount == 0); // Make sure this is set before TableUpdateLayout() so ImGuiListClipper can benefit from it.b
// Ensure frozen columns are ordered in their section. We still allow multiple frozen columns to be reordered.
// FIXME-TABLE: This work for preserving 2143 into 21|43. How about 4321 turning into 21|43? (preserve relative order in each section)
for (int column_n = 0; column_n < table->FreezeColumnsRequest; column_n++)
{
int order_n = table->DisplayOrderToIndex[column_n];
if (order_n != column_n && order_n >= table->FreezeColumnsRequest)
{
ImSwap(table->Columns[table->DisplayOrderToIndex[order_n]].DisplayOrder, table->Columns[table->DisplayOrderToIndex[column_n]].DisplayOrder);
ImSwap(table->DisplayOrderToIndex[order_n], table->DisplayOrderToIndex[column_n]);
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] Tables: Simple accessors
//-----------------------------------------------------------------------------
// - TableGetColumnCount()
// - TableGetColumnName()
// - TableGetColumnName() [Internal]
// - TableSetColumnEnabled()
// - TableGetColumnFlags()
// - TableGetCellBgRect() [Internal]
// - TableGetColumnResizeID() [Internal]
// - TableGetHoveredColumn() [Internal]
// - TableSetBgColor()
//-----------------------------------------------------------------------------
int ImGui::TableGetColumnCount()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
return table ? table->ColumnsCount : 0;
}
const char* ImGui::TableGetColumnName(int column_n)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return NULL;
if (column_n < 0)
column_n = table->CurrentColumn;
return TableGetColumnName(table, column_n);
}
const char* ImGui::TableGetColumnName(const ImGuiTable* table, int column_n)
{
if (table->IsLayoutLocked == false && column_n >= table->DeclColumnsCount)
return ""; // NameOffset is invalid at this point
const ImGuiTableColumn* column = &table->Columns[column_n];
if (column->NameOffset == -1)
return "";
return &table->ColumnsNames.Buf[column->NameOffset];
}
// Change user accessible enabled/disabled state of a column (often perceived as "showing/hiding" from users point of view)
// Note that end-user can use the context menu to change this themselves (right-click in headers, or right-click in columns body with ImGuiTableFlags_ContextMenuInBody)
// - Require table to have the ImGuiTableFlags_Hideable flag because we are manipulating user accessible state.
// - Request will be applied during next layout, which happens on the first call to TableNextRow() after BeginTable().
// - For the getter you can test (TableGetColumnFlags() & ImGuiTableColumnFlags_IsEnabled) != 0.
// - Alternative: the ImGuiTableColumnFlags_Disabled is an overriding/master disable flag which will also hide the column from context menu.
void ImGui::TableSetColumnEnabled(int column_n, bool enabled)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL);
if (!table)
return;
IM_ASSERT(table->Flags & ImGuiTableFlags_Hideable); // See comments above
if (column_n < 0)
column_n = table->CurrentColumn;
IM_ASSERT(column_n >= 0 && column_n < table->ColumnsCount);
ImGuiTableColumn* column = &table->Columns[column_n];
column->IsUserEnabledNextFrame = enabled;
}
// We allow querying for an extra column in order to poll the IsHovered state of the right-most section
ImGuiTableColumnFlags ImGui::TableGetColumnFlags(int column_n)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return ImGuiTableColumnFlags_None;
if (column_n < 0)
column_n = table->CurrentColumn;
if (column_n == table->ColumnsCount)
return (table->HoveredColumnBody == column_n) ? ImGuiTableColumnFlags_IsHovered : ImGuiTableColumnFlags_None;
return table->Columns[column_n].Flags;
}
// Return the cell rectangle based on currently known height.
// - Important: we generally don't know our row height until the end of the row, so Max.y will be incorrect in many situations.
// The only case where this is correct is if we provided a min_row_height to TableNextRow() and don't go below it, or in TableEndRow() when we locked that height.
// - Important: if ImGuiTableFlags_PadOuterX is set but ImGuiTableFlags_PadInnerX is not set, the outer-most left and right
// columns report a small offset so their CellBgRect can extend up to the outer border.
// FIXME: But the rendering code in TableEndRow() nullifies that with clamping required for scrolling.
ImRect ImGui::TableGetCellBgRect(const ImGuiTable* table, int column_n)
{
const ImGuiTableColumn* column = &table->Columns[column_n];
float x1 = column->MinX;
float x2 = column->MaxX;
//if (column->PrevEnabledColumn == -1)
// x1 -= table->OuterPaddingX;
//if (column->NextEnabledColumn == -1)
// x2 += table->OuterPaddingX;
x1 = ImMax(x1, table->WorkRect.Min.x);
x2 = ImMin(x2, table->WorkRect.Max.x);
return ImRect(x1, table->RowPosY1, x2, table->RowPosY2);
}
// Return the resizing ID for the right-side of the given column.
ImGuiID ImGui::TableGetColumnResizeID(ImGuiTable* table, int column_n, int instance_no)
{
IM_ASSERT(column_n >= 0 && column_n < table->ColumnsCount);
ImGuiID instance_id = TableGetInstanceID(table, instance_no);
return instance_id + 1 + column_n; // FIXME: #6140: still not ideal
}
// Return -1 when table is not hovered. return columns_count if the unused space at the right of visible columns is hovered.
int ImGui::TableGetHoveredColumn()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return -1;
return (int)table->HoveredColumnBody;
}
void ImGui::TableSetBgColor(ImGuiTableBgTarget target, ImU32 color, int column_n)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(target != ImGuiTableBgTarget_None);
if (color == IM_COL32_DISABLE)
color = 0;
// We cannot draw neither the cell or row background immediately as we don't know the row height at this point in time.
switch (target)
{
case ImGuiTableBgTarget_CellBg:
{
if (table->RowPosY1 > table->InnerClipRect.Max.y) // Discard
return;
if (column_n == -1)
column_n = table->CurrentColumn;
if (!IM_BITARRAY_TESTBIT(table->VisibleMaskByIndex, column_n))
return;
if (table->RowCellDataCurrent < 0 || table->RowCellData[table->RowCellDataCurrent].Column != column_n)
table->RowCellDataCurrent++;
ImGuiTableCellData* cell_data = &table->RowCellData[table->RowCellDataCurrent];
cell_data->BgColor = color;
cell_data->Column = (ImGuiTableColumnIdx)column_n;
break;
}
case ImGuiTableBgTarget_RowBg0:
case ImGuiTableBgTarget_RowBg1:
{
if (table->RowPosY1 > table->InnerClipRect.Max.y) // Discard
return;
IM_ASSERT(column_n == -1);
int bg_idx = (target == ImGuiTableBgTarget_RowBg1) ? 1 : 0;
table->RowBgColor[bg_idx] = color;
break;
}
default:
IM_ASSERT(0);
}
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Row changes
//-------------------------------------------------------------------------
// - TableGetRowIndex()
// - TableNextRow()
// - TableBeginRow() [Internal]
// - TableEndRow() [Internal]
//-------------------------------------------------------------------------
// [Public] Note: for row coloring we use ->RowBgColorCounter which is the same value without counting header rows
int ImGui::TableGetRowIndex()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return 0;
return table->CurrentRow;
}
// [Public] Starts into the first cell of a new row
void ImGui::TableNextRow(ImGuiTableRowFlags row_flags, float row_min_height)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table->IsLayoutLocked)
TableUpdateLayout(table);
if (table->IsInsideRow)
TableEndRow(table);
table->LastRowFlags = table->RowFlags;
table->RowFlags = row_flags;
table->RowMinHeight = row_min_height;
TableBeginRow(table);
// We honor min_row_height requested by user, but cannot guarantee per-row maximum height,
// because that would essentially require a unique clipping rectangle per-cell.
table->RowPosY2 += table->CellPaddingY * 2.0f;
table->RowPosY2 = ImMax(table->RowPosY2, table->RowPosY1 + row_min_height);
// Disable output until user calls TableNextColumn()
table->InnerWindow->SkipItems = true;
}
// [Internal] Called by TableNextRow()
void ImGui::TableBeginRow(ImGuiTable* table)
{
ImGuiWindow* window = table->InnerWindow;
IM_ASSERT(!table->IsInsideRow);
// New row
table->CurrentRow++;
table->CurrentColumn = -1;
table->RowBgColor[0] = table->RowBgColor[1] = IM_COL32_DISABLE;
table->RowCellDataCurrent = -1;
table->IsInsideRow = true;
// Begin frozen rows
float next_y1 = table->RowPosY2;
if (table->CurrentRow == 0 && table->FreezeRowsCount > 0)
next_y1 = window->DC.CursorPos.y = table->OuterRect.Min.y;
table->RowPosY1 = table->RowPosY2 = next_y1;
table->RowTextBaseline = 0.0f;
table->RowIndentOffsetX = window->DC.Indent.x - table->HostIndentX; // Lock indent
window->DC.PrevLineTextBaseOffset = 0.0f;
window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
window->DC.IsSameLine = window->DC.IsSetPos = false;
window->DC.CursorMaxPos.y = next_y1;
// Making the header BG color non-transparent will allow us to overlay it multiple times when handling smooth dragging.
if (table->RowFlags & ImGuiTableRowFlags_Headers)
{
TableSetBgColor(ImGuiTableBgTarget_RowBg0, GetColorU32(ImGuiCol_TableHeaderBg));
if (table->CurrentRow == 0)
table->IsUsingHeaders = true;
}
}
// [Internal] Called by TableNextRow()
void ImGui::TableEndRow(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(window == table->InnerWindow);
IM_ASSERT(table->IsInsideRow);
if (table->CurrentColumn != -1)
TableEndCell(table);
// Logging
if (g.LogEnabled)
LogRenderedText(NULL, "|");
// Position cursor at the bottom of our row so it can be used for e.g. clipping calculation. However it is
// likely that the next call to TableBeginCell() will reposition the cursor to take account of vertical padding.
window->DC.CursorPos.y = table->RowPosY2;
// Row background fill
const float bg_y1 = table->RowPosY1;
const float bg_y2 = table->RowPosY2;
const bool unfreeze_rows_actual = (table->CurrentRow + 1 == table->FreezeRowsCount);
const bool unfreeze_rows_request = (table->CurrentRow + 1 == table->FreezeRowsRequest);
if (table->CurrentRow == 0)
TableGetInstanceData(table, table->InstanceCurrent)->LastFirstRowHeight = bg_y2 - bg_y1;
const bool is_visible = (bg_y2 >= table->InnerClipRect.Min.y && bg_y1 <= table->InnerClipRect.Max.y);
if (is_visible)
{
// Decide of background color for the row
ImU32 bg_col0 = 0;
ImU32 bg_col1 = 0;
if (table->RowBgColor[0] != IM_COL32_DISABLE)
bg_col0 = table->RowBgColor[0];
else if (table->Flags & ImGuiTableFlags_RowBg)
bg_col0 = GetColorU32((table->RowBgColorCounter & 1) ? ImGuiCol_TableRowBgAlt : ImGuiCol_TableRowBg);
if (table->RowBgColor[1] != IM_COL32_DISABLE)
bg_col1 = table->RowBgColor[1];
// Decide of top border color
ImU32 border_col = 0;
const float border_size = TABLE_BORDER_SIZE;
if (table->CurrentRow > 0 || table->InnerWindow == table->OuterWindow)
if (table->Flags & ImGuiTableFlags_BordersInnerH)
border_col = (table->LastRowFlags & ImGuiTableRowFlags_Headers) ? table->BorderColorStrong : table->BorderColorLight;
const bool draw_cell_bg_color = table->RowCellDataCurrent >= 0;
const bool draw_strong_bottom_border = unfreeze_rows_actual;
if ((bg_col0 | bg_col1 | border_col) != 0 || draw_strong_bottom_border || draw_cell_bg_color)
{
// In theory we could call SetWindowClipRectBeforeSetChannel() but since we know TableEndRow() is
// always followed by a change of clipping rectangle we perform the smallest overwrite possible here.
if ((table->Flags & ImGuiTableFlags_NoClip) == 0)
window->DrawList->_CmdHeader.ClipRect = table->Bg0ClipRectForDrawCmd.ToVec4();
table->DrawSplitter->SetCurrentChannel(window->DrawList, TABLE_DRAW_CHANNEL_BG0);
}
// Draw row background
// We soft/cpu clip this so all backgrounds and borders can share the same clipping rectangle
if (bg_col0 || bg_col1)
{
ImRect row_rect(table->WorkRect.Min.x, bg_y1, table->WorkRect.Max.x, bg_y2);
row_rect.ClipWith(table->BgClipRect);
if (bg_col0 != 0 && row_rect.Min.y < row_rect.Max.y)
window->DrawList->AddRectFilled(row_rect.Min, row_rect.Max, bg_col0);
if (bg_col1 != 0 && row_rect.Min.y < row_rect.Max.y)
window->DrawList->AddRectFilled(row_rect.Min, row_rect.Max, bg_col1);
}
// Draw cell background color
if (draw_cell_bg_color)
{
ImGuiTableCellData* cell_data_end = &table->RowCellData[table->RowCellDataCurrent];
for (ImGuiTableCellData* cell_data = &table->RowCellData[0]; cell_data <= cell_data_end; cell_data++)
{
// As we render the BG here we need to clip things (for layout we would not)
// FIXME: This cancels the OuterPadding addition done by TableGetCellBgRect(), need to keep it while rendering correctly while scrolling.
const ImGuiTableColumn* column = &table->Columns[cell_data->Column];
ImRect cell_bg_rect = TableGetCellBgRect(table, cell_data->Column);
cell_bg_rect.ClipWith(table->BgClipRect);
cell_bg_rect.Min.x = ImMax(cell_bg_rect.Min.x, column->ClipRect.Min.x); // So that first column after frozen one gets clipped when scrolling
cell_bg_rect.Max.x = ImMin(cell_bg_rect.Max.x, column->MaxX);
window->DrawList->AddRectFilled(cell_bg_rect.Min, cell_bg_rect.Max, cell_data->BgColor);
}
}
// Draw top border
if (border_col && bg_y1 >= table->BgClipRect.Min.y && bg_y1 < table->BgClipRect.Max.y)
window->DrawList->AddLine(ImVec2(table->BorderX1, bg_y1), ImVec2(table->BorderX2, bg_y1), border_col, border_size);
// Draw bottom border at the row unfreezing mark (always strong)
if (draw_strong_bottom_border && bg_y2 >= table->BgClipRect.Min.y && bg_y2 < table->BgClipRect.Max.y)
window->DrawList->AddLine(ImVec2(table->BorderX1, bg_y2), ImVec2(table->BorderX2, bg_y2), table->BorderColorStrong, border_size);
}
// End frozen rows (when we are past the last frozen row line, teleport cursor and alter clipping rectangle)
// We need to do that in TableEndRow() instead of TableBeginRow() so the list clipper can mark end of row and
// get the new cursor position.
if (unfreeze_rows_request)
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
table->Columns[column_n].NavLayerCurrent = ImGuiNavLayer_Main;
if (unfreeze_rows_actual)
{
IM_ASSERT(table->IsUnfrozenRows == false);
const float y0 = ImMax(table->RowPosY2 + 1, window->InnerClipRect.Min.y);
table->IsUnfrozenRows = true;
TableGetInstanceData(table, table->InstanceCurrent)->LastFrozenHeight = y0 - table->OuterRect.Min.y;
// BgClipRect starts as table->InnerClipRect, reduce it now and make BgClipRectForDrawCmd == BgClipRect
table->BgClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y = ImMin(y0, window->InnerClipRect.Max.y);
table->BgClipRect.Max.y = table->Bg2ClipRectForDrawCmd.Max.y = window->InnerClipRect.Max.y;
table->Bg2DrawChannelCurrent = table->Bg2DrawChannelUnfrozen;
IM_ASSERT(table->Bg2ClipRectForDrawCmd.Min.y <= table->Bg2ClipRectForDrawCmd.Max.y);
float row_height = table->RowPosY2 - table->RowPosY1;
table->RowPosY2 = window->DC.CursorPos.y = table->WorkRect.Min.y + table->RowPosY2 - table->OuterRect.Min.y;
table->RowPosY1 = table->RowPosY2 - row_height;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
column->DrawChannelCurrent = column->DrawChannelUnfrozen;
column->ClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y;
}
// Update cliprect ahead of TableBeginCell() so clipper can access to new ClipRect->Min.y
SetWindowClipRectBeforeSetChannel(window, table->Columns[0].ClipRect);
table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Columns[0].DrawChannelCurrent);
}
if (!(table->RowFlags & ImGuiTableRowFlags_Headers))
table->RowBgColorCounter++;
table->IsInsideRow = false;
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Columns changes
//-------------------------------------------------------------------------
// - TableGetColumnIndex()
// - TableSetColumnIndex()
// - TableNextColumn()
// - TableBeginCell() [Internal]
// - TableEndCell() [Internal]
//-------------------------------------------------------------------------
int ImGui::TableGetColumnIndex()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return 0;
return table->CurrentColumn;
}
// [Public] Append into a specific column
bool ImGui::TableSetColumnIndex(int column_n)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return false;
if (table->CurrentColumn != column_n)
{
if (table->CurrentColumn != -1)
TableEndCell(table);
IM_ASSERT(column_n >= 0 && table->ColumnsCount);
TableBeginCell(table, column_n);
}
// Return whether the column is visible. User may choose to skip submitting items based on this return value,
// however they shouldn't skip submitting for columns that may have the tallest contribution to row height.
return table->Columns[column_n].IsRequestOutput;
}
// [Public] Append into the next column, wrap and create a new row when already on last column
bool ImGui::TableNextColumn()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!table)
return false;
if (table->IsInsideRow && table->CurrentColumn + 1 < table->ColumnsCount)
{
if (table->CurrentColumn != -1)
TableEndCell(table);
TableBeginCell(table, table->CurrentColumn + 1);
}
else
{
TableNextRow();
TableBeginCell(table, 0);
}
// Return whether the column is visible. User may choose to skip submitting items based on this return value,
// however they shouldn't skip submitting for columns that may have the tallest contribution to row height.
return table->Columns[table->CurrentColumn].IsRequestOutput;
}
// [Internal] Called by TableSetColumnIndex()/TableNextColumn()
// This is called very frequently, so we need to be mindful of unnecessary overhead.
// FIXME-TABLE FIXME-OPT: Could probably shortcut some things for non-active or clipped columns.
void ImGui::TableBeginCell(ImGuiTable* table, int column_n)
{
ImGuiTableColumn* column = &table->Columns[column_n];
ImGuiWindow* window = table->InnerWindow;
table->CurrentColumn = column_n;
// Start position is roughly ~~ CellRect.Min + CellPadding + Indent
float start_x = column->WorkMinX;
if (column->Flags & ImGuiTableColumnFlags_IndentEnable)
start_x += table->RowIndentOffsetX; // ~~ += window.DC.Indent.x - table->HostIndentX, except we locked it for the row.
window->DC.CursorPos.x = start_x;
window->DC.CursorPos.y = table->RowPosY1 + table->CellPaddingY;
window->DC.CursorMaxPos.x = window->DC.CursorPos.x;
window->DC.ColumnsOffset.x = start_x - window->Pos.x - window->DC.Indent.x; // FIXME-WORKRECT
window->DC.CurrLineTextBaseOffset = table->RowTextBaseline;
window->DC.NavLayerCurrent = (ImGuiNavLayer)column->NavLayerCurrent;
window->WorkRect.Min.y = window->DC.CursorPos.y;
window->WorkRect.Min.x = column->WorkMinX;
window->WorkRect.Max.x = column->WorkMaxX;
window->DC.ItemWidth = column->ItemWidth;
window->SkipItems = column->IsSkipItems;
if (column->IsSkipItems)
{
ImGuiContext& g = *GImGui;
g.LastItemData.ID = 0;
g.LastItemData.StatusFlags = 0;
}
if (table->Flags & ImGuiTableFlags_NoClip)
{
// FIXME: if we end up drawing all borders/bg in EndTable, could remove this and just assert that channel hasn't changed.
table->DrawSplitter->SetCurrentChannel(window->DrawList, TABLE_DRAW_CHANNEL_NOCLIP);
//IM_ASSERT(table->DrawSplitter._Current == TABLE_DRAW_CHANNEL_NOCLIP);
}
else
{
// FIXME-TABLE: Could avoid this if draw channel is dummy channel?
SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
}
// Logging
ImGuiContext& g = *GImGui;
if (g.LogEnabled && !column->IsSkipItems)
{
LogRenderedText(&window->DC.CursorPos, "|");
g.LogLinePosY = FLT_MAX;
}
}
// [Internal] Called by TableNextRow()/TableSetColumnIndex()/TableNextColumn()
void ImGui::TableEndCell(ImGuiTable* table)
{
ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
ImGuiWindow* window = table->InnerWindow;
if (window->DC.IsSetPos)
ErrorCheckUsingSetCursorPosToExtendParentBoundaries();
// Report maximum position so we can infer content size per column.
float* p_max_pos_x;
if (table->RowFlags & ImGuiTableRowFlags_Headers)
p_max_pos_x = &column->ContentMaxXHeadersUsed; // Useful in case user submit contents in header row that is not a TableHeader() call
else
p_max_pos_x = table->IsUnfrozenRows ? &column->ContentMaxXUnfrozen : &column->ContentMaxXFrozen;
*p_max_pos_x = ImMax(*p_max_pos_x, window->DC.CursorMaxPos.x);
if (column->IsEnabled)
table->RowPosY2 = ImMax(table->RowPosY2, window->DC.CursorMaxPos.y + table->CellPaddingY);
column->ItemWidth = window->DC.ItemWidth;
// Propagate text baseline for the entire row
// FIXME-TABLE: Here we propagate text baseline from the last line of the cell.. instead of the first one.
table->RowTextBaseline = ImMax(table->RowTextBaseline, window->DC.PrevLineTextBaseOffset);
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Columns width management
//-------------------------------------------------------------------------
// - TableGetMaxColumnWidth() [Internal]
// - TableGetColumnWidthAuto() [Internal]
// - TableSetColumnWidth()
// - TableSetColumnWidthAutoSingle() [Internal]
// - TableSetColumnWidthAutoAll() [Internal]
// - TableUpdateColumnsWeightFromWidth() [Internal]
//-------------------------------------------------------------------------
// Maximum column content width given current layout. Use column->MinX so this value on a per-column basis.
float ImGui::TableGetMaxColumnWidth(const ImGuiTable* table, int column_n)
{
const ImGuiTableColumn* column = &table->Columns[column_n];
float max_width = FLT_MAX;
const float min_column_distance = table->MinColumnWidth + table->CellPaddingX * 2.0f + table->CellSpacingX1 + table->CellSpacingX2;
if (table->Flags & ImGuiTableFlags_ScrollX)
{
// Frozen columns can't reach beyond visible width else scrolling will naturally break.
// (we use DisplayOrder as within a set of multiple frozen column reordering is possible)
if (column->DisplayOrder < table->FreezeColumnsRequest)
{
max_width = (table->InnerClipRect.Max.x - (table->FreezeColumnsRequest - column->DisplayOrder) * min_column_distance) - column->MinX;
max_width = max_width - table->OuterPaddingX - table->CellPaddingX - table->CellSpacingX2;
}
}
else if ((table->Flags & ImGuiTableFlags_NoKeepColumnsVisible) == 0)
{
// If horizontal scrolling if disabled, we apply a final lossless shrinking of columns in order to make
// sure they are all visible. Because of this we also know that all of the columns will always fit in
// table->WorkRect and therefore in table->InnerRect (because ScrollX is off)
// FIXME-TABLE: This is solved incorrectly but also quite a difficult problem to fix as we also want ClipRect width to match.
// See "table_width_distrib" and "table_width_keep_visible" tests
max_width = table->WorkRect.Max.x - (table->ColumnsEnabledCount - column->IndexWithinEnabledSet - 1) * min_column_distance - column->MinX;
//max_width -= table->CellSpacingX1;
max_width -= table->CellSpacingX2;
max_width -= table->CellPaddingX * 2.0f;
max_width -= table->OuterPaddingX;
}
return max_width;
}
// Note this is meant to be stored in column->WidthAuto, please generally use the WidthAuto field
float ImGui::TableGetColumnWidthAuto(ImGuiTable* table, ImGuiTableColumn* column)
{
const float content_width_body = ImMax(column->ContentMaxXFrozen, column->ContentMaxXUnfrozen) - column->WorkMinX;
const float content_width_headers = column->ContentMaxXHeadersIdeal - column->WorkMinX;
float width_auto = content_width_body;
if (!(column->Flags & ImGuiTableColumnFlags_NoHeaderWidth))
width_auto = ImMax(width_auto, content_width_headers);
// Non-resizable fixed columns preserve their requested width
if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f)
if (!(table->Flags & ImGuiTableFlags_Resizable) || (column->Flags & ImGuiTableColumnFlags_NoResize))
width_auto = column->InitStretchWeightOrWidth;
return ImMax(width_auto, table->MinColumnWidth);
}
// 'width' = inner column width, without padding
void ImGui::TableSetColumnWidth(int column_n, float width)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && table->IsLayoutLocked == false);
IM_ASSERT(column_n >= 0 && column_n < table->ColumnsCount);
ImGuiTableColumn* column_0 = &table->Columns[column_n];
float column_0_width = width;
// Apply constraints early
// Compare both requested and actual given width to avoid overwriting requested width when column is stuck (minimum size, bounded)
IM_ASSERT(table->MinColumnWidth > 0.0f);
const float min_width = table->MinColumnWidth;
const float max_width = ImMax(min_width, TableGetMaxColumnWidth(table, column_n));
column_0_width = ImClamp(column_0_width, min_width, max_width);
if (column_0->WidthGiven == column_0_width || column_0->WidthRequest == column_0_width)
return;
//IMGUI_DEBUG_PRINT("TableSetColumnWidth(%d, %.1f->%.1f)\n", column_0_idx, column_0->WidthGiven, column_0_width);
ImGuiTableColumn* column_1 = (column_0->NextEnabledColumn != -1) ? &table->Columns[column_0->NextEnabledColumn] : NULL;
// In this surprisingly not simple because of how we support mixing Fixed and multiple Stretch columns.
// - All fixed: easy.
// - All stretch: easy.
// - One or more fixed + one stretch: easy.
// - One or more fixed + more than one stretch: tricky.
// Qt when manual resize is enabled only support a single _trailing_ stretch column.
// When forwarding resize from Wn| to Fn+1| we need to be considerate of the _NoResize flag on Fn+1.
// FIXME-TABLE: Find a way to rewrite all of this so interactions feel more consistent for the user.
// Scenarios:
// - F1 F2 F3 resize from F1| or F2| --> ok: alter ->WidthRequested of Fixed column. Subsequent columns will be offset.
// - F1 F2 F3 resize from F3| --> ok: alter ->WidthRequested of Fixed column. If active, ScrollX extent can be altered.
// - F1 F2 W3 resize from F1| or F2| --> ok: alter ->WidthRequested of Fixed column. If active, ScrollX extent can be altered, but it doesn't make much sense as the Stretch column will always be minimal size.
// - F1 F2 W3 resize from W3| --> ok: no-op (disabled by Resize Rule 1)
// - W1 W2 W3 resize from W1| or W2| --> ok
// - W1 W2 W3 resize from W3| --> ok: no-op (disabled by Resize Rule 1)
// - W1 F2 F3 resize from F3| --> ok: no-op (disabled by Resize Rule 1)
// - W1 F2 resize from F2| --> ok: no-op (disabled by Resize Rule 1)
// - W1 W2 F3 resize from W1| or W2| --> ok
// - W1 F2 W3 resize from W1| or F2| --> ok
// - F1 W2 F3 resize from W2| --> ok
// - F1 W3 F2 resize from W3| --> ok
// - W1 F2 F3 resize from W1| --> ok: equivalent to resizing |F2. F3 will not move.
// - W1 F2 F3 resize from F2| --> ok
// All resizes from a Wx columns are locking other columns.
// Possible improvements:
// - W1 W2 W3 resize W1| --> to not be stuck, both W2 and W3 would stretch down. Seems possible to fix. Would be most beneficial to simplify resize of all-weighted columns.
// - W3 F1 F2 resize W3| --> to not be stuck past F1|, both F1 and F2 would need to stretch down, which would be lossy or ambiguous. Seems hard to fix.
// [Resize Rule 1] Can't resize from right of right-most visible column if there is any Stretch column. Implemented in TableUpdateLayout().
// If we have all Fixed columns OR resizing a Fixed column that doesn't come after a Stretch one, we can do an offsetting resize.
// This is the preferred resize path
if (column_0->Flags & ImGuiTableColumnFlags_WidthFixed)
if (!column_1 || table->LeftMostStretchedColumn == -1 || table->Columns[table->LeftMostStretchedColumn].DisplayOrder >= column_0->DisplayOrder)
{
column_0->WidthRequest = column_0_width;
table->IsSettingsDirty = true;
return;
}
// We can also use previous column if there's no next one (this is used when doing an auto-fit on the right-most stretch column)
if (column_1 == NULL)
column_1 = (column_0->PrevEnabledColumn != -1) ? &table->Columns[column_0->PrevEnabledColumn] : NULL;
if (column_1 == NULL)
return;
// Resizing from right-side of a Stretch column before a Fixed column forward sizing to left-side of fixed column.
// (old_a + old_b == new_a + new_b) --> (new_a == old_a + old_b - new_b)
float column_1_width = ImMax(column_1->WidthRequest - (column_0_width - column_0->WidthRequest), min_width);
column_0_width = column_0->WidthRequest + column_1->WidthRequest - column_1_width;
IM_ASSERT(column_0_width > 0.0f && column_1_width > 0.0f);
column_0->WidthRequest = column_0_width;
column_1->WidthRequest = column_1_width;
if ((column_0->Flags | column_1->Flags) & ImGuiTableColumnFlags_WidthStretch)
TableUpdateColumnsWeightFromWidth(table);
table->IsSettingsDirty = true;
}
// Disable clipping then auto-fit, will take 2 frames
// (we don't take a shortcut for unclipped columns to reduce inconsistencies when e.g. resizing multiple columns)
void ImGui::TableSetColumnWidthAutoSingle(ImGuiTable* table, int column_n)
{
// Single auto width uses auto-fit
ImGuiTableColumn* column = &table->Columns[column_n];
if (!column->IsEnabled)
return;
column->CannotSkipItemsQueue = (1 << 0);
table->AutoFitSingleColumn = (ImGuiTableColumnIdx)column_n;
}
void ImGui::TableSetColumnWidthAutoAll(ImGuiTable* table)
{
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (!column->IsEnabled && !(column->Flags & ImGuiTableColumnFlags_WidthStretch)) // Cannot reset weight of hidden stretch column
continue;
column->CannotSkipItemsQueue = (1 << 0);
column->AutoFitQueue = (1 << 1);
}
}
void ImGui::TableUpdateColumnsWeightFromWidth(ImGuiTable* table)
{
IM_ASSERT(table->LeftMostStretchedColumn != -1 && table->RightMostStretchedColumn != -1);
// Measure existing quantity
float visible_weight = 0.0f;
float visible_width = 0.0f;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (!column->IsEnabled || !(column->Flags & ImGuiTableColumnFlags_WidthStretch))
continue;
IM_ASSERT(column->StretchWeight > 0.0f);
visible_weight += column->StretchWeight;
visible_width += column->WidthRequest;
}
IM_ASSERT(visible_weight > 0.0f && visible_width > 0.0f);
// Apply new weights
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (!column->IsEnabled || !(column->Flags & ImGuiTableColumnFlags_WidthStretch))
continue;
column->StretchWeight = (column->WidthRequest / visible_width) * visible_weight;
IM_ASSERT(column->StretchWeight > 0.0f);
}
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Drawing
//-------------------------------------------------------------------------
// - TablePushBackgroundChannel() [Internal]
// - TablePopBackgroundChannel() [Internal]
// - TableSetupDrawChannels() [Internal]
// - TableMergeDrawChannels() [Internal]
// - TableDrawBorders() [Internal]
//-------------------------------------------------------------------------
// Bg2 is used by Selectable (and possibly other widgets) to render to the background.
// Unlike our Bg0/1 channel which we uses for RowBg/CellBg/Borders and where we guarantee all shapes to be CPU-clipped, the Bg2 channel being widgets-facing will rely on regular ClipRect.
void ImGui::TablePushBackgroundChannel()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiTable* table = g.CurrentTable;
// Optimization: avoid SetCurrentChannel() + PushClipRect()
table->HostBackupInnerClipRect = window->ClipRect;
SetWindowClipRectBeforeSetChannel(window, table->Bg2ClipRectForDrawCmd);
table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Bg2DrawChannelCurrent);
}
void ImGui::TablePopBackgroundChannel()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiTable* table = g.CurrentTable;
ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
// Optimization: avoid PopClipRect() + SetCurrentChannel()
SetWindowClipRectBeforeSetChannel(window, table->HostBackupInnerClipRect);
table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
}
// Allocate draw channels. Called by TableUpdateLayout()
// - We allocate them following storage order instead of display order so reordering columns won't needlessly
// increase overall dormant memory cost.
// - We isolate headers draw commands in their own channels instead of just altering clip rects.
// This is in order to facilitate merging of draw commands.
// - After crossing FreezeRowsCount, all columns see their current draw channel changed to a second set of channels.
// - We only use the dummy draw channel so we can push a null clipping rectangle into it without affecting other
// channels, while simplifying per-row/per-cell overhead. It will be empty and discarded when merged.
// - We allocate 1 or 2 background draw channels. This is because we know TablePushBackgroundChannel() is only used for
// horizontal spanning. If we allowed vertical spanning we'd need one background draw channel per merge group (1-4).
// Draw channel allocation (before merging):
// - NoClip --> 2+D+1 channels: bg0/1 + bg2 + foreground (same clip rect == always 1 draw call)
// - Clip --> 2+D+N channels
// - FreezeRows --> 2+D+N*2 (unless scrolling value is zero)
// - FreezeRows || FreezeColunns --> 3+D+N*2 (unless scrolling value is zero)
// Where D is 1 if any column is clipped or hidden (dummy channel) otherwise 0.
void ImGui::TableSetupDrawChannels(ImGuiTable* table)
{
const int freeze_row_multiplier = (table->FreezeRowsCount > 0) ? 2 : 1;
const int channels_for_row = (table->Flags & ImGuiTableFlags_NoClip) ? 1 : table->ColumnsEnabledCount;
const int channels_for_bg = 1 + 1 * freeze_row_multiplier;
const int channels_for_dummy = (table->ColumnsEnabledCount < table->ColumnsCount || (memcmp(table->VisibleMaskByIndex, table->EnabledMaskByIndex, ImBitArrayGetStorageSizeInBytes(table->ColumnsCount)) != 0)) ? +1 : 0;
const int channels_total = channels_for_bg + (channels_for_row * freeze_row_multiplier) + channels_for_dummy;
table->DrawSplitter->Split(table->InnerWindow->DrawList, channels_total);
table->DummyDrawChannel = (ImGuiTableDrawChannelIdx)((channels_for_dummy > 0) ? channels_total - 1 : -1);
table->Bg2DrawChannelCurrent = TABLE_DRAW_CHANNEL_BG2_FROZEN;
table->Bg2DrawChannelUnfrozen = (ImGuiTableDrawChannelIdx)((table->FreezeRowsCount > 0) ? 2 + channels_for_row : TABLE_DRAW_CHANNEL_BG2_FROZEN);
int draw_channel_current = 2;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->IsVisibleX && column->IsVisibleY)
{
column->DrawChannelFrozen = (ImGuiTableDrawChannelIdx)(draw_channel_current);
column->DrawChannelUnfrozen = (ImGuiTableDrawChannelIdx)(draw_channel_current + (table->FreezeRowsCount > 0 ? channels_for_row + 1 : 0));
if (!(table->Flags & ImGuiTableFlags_NoClip))
draw_channel_current++;
}
else
{
column->DrawChannelFrozen = column->DrawChannelUnfrozen = table->DummyDrawChannel;
}
column->DrawChannelCurrent = column->DrawChannelFrozen;
}
// Initial draw cmd starts with a BgClipRect that matches the one of its host, to facilitate merge draw commands by default.
// All our cell highlight are manually clipped with BgClipRect. When unfreezing it will be made smaller to fit scrolling rect.
// (This technically isn't part of setting up draw channels, but is reasonably related to be done here)
table->BgClipRect = table->InnerClipRect;
table->Bg0ClipRectForDrawCmd = table->OuterWindow->ClipRect;
table->Bg2ClipRectForDrawCmd = table->HostClipRect;
IM_ASSERT(table->BgClipRect.Min.y <= table->BgClipRect.Max.y);
}
// This function reorder draw channels based on matching clip rectangle, to facilitate merging them. Called by EndTable().
// For simplicity we call it TableMergeDrawChannels() but in fact it only reorder channels + overwrite ClipRect,
// actual merging is done by table->DrawSplitter.Merge() which is called right after TableMergeDrawChannels().
//
// Columns where the contents didn't stray off their local clip rectangle can be merged. To achieve
// this we merge their clip rect and make them contiguous in the channel list, so they can be merged
// by the call to DrawSplitter.Merge() following to the call to this function.
// We reorder draw commands by arranging them into a maximum of 4 distinct groups:
//
// 1 group: 2 groups: 2 groups: 4 groups:
// [ 0. ] no freeze [ 0. ] row freeze [ 01 ] col freeze [ 01 ] row+col freeze
// [ .. ] or no scroll [ 2. ] and v-scroll [ .. ] and h-scroll [ 23 ] and v+h-scroll
//
// Each column itself can use 1 channel (row freeze disabled) or 2 channels (row freeze enabled).
// When the contents of a column didn't stray off its limit, we move its channels into the corresponding group
// based on its position (within frozen rows/columns groups or not).
// At the end of the operation our 1-4 groups will each have a ImDrawCmd using the same ClipRect.
// This function assume that each column are pointing to a distinct draw channel,
// otherwise merge_group->ChannelsCount will not match set bit count of merge_group->ChannelsMask.
//
// Column channels will not be merged into one of the 1-4 groups in the following cases:
// - The contents stray off its clipping rectangle (we only compare the MaxX value, not the MinX value).
// Direct ImDrawList calls won't be taken into account by default, if you use them make sure the ImGui:: bounds
// matches, by e.g. calling SetCursorScreenPos().
// - The channel uses more than one draw command itself. We drop all our attempt at merging stuff here..
// we could do better but it's going to be rare and probably not worth the hassle.
// Columns for which the draw channel(s) haven't been merged with other will use their own ImDrawCmd.
//
// This function is particularly tricky to understand.. take a breath.
void ImGui::TableMergeDrawChannels(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
ImDrawListSplitter* splitter = table->DrawSplitter;
const bool has_freeze_v = (table->FreezeRowsCount > 0);
const bool has_freeze_h = (table->FreezeColumnsCount > 0);
IM_ASSERT(splitter->_Current == 0);
// Track which groups we are going to attempt to merge, and which channels goes into each group.
struct MergeGroup
{
ImRect ClipRect;
int ChannelsCount;
ImBitArrayPtr ChannelsMask;
};
int merge_group_mask = 0x00;
MergeGroup merge_groups[4] = {};
// Use a reusable temp buffer for the merge masks as they are dynamically sized.
const int max_draw_channels = (4 + table->ColumnsCount * 2);
const int size_for_masks_bitarrays_one = (int)ImBitArrayGetStorageSizeInBytes(max_draw_channels);
g.TempBuffer.reserve(size_for_masks_bitarrays_one * 5);
memset(g.TempBuffer.Data, 0, size_for_masks_bitarrays_one * 5);
for (int n = 0; n < IM_ARRAYSIZE(merge_groups); n++)
merge_groups[n].ChannelsMask = (ImBitArrayPtr)(void*)(g.TempBuffer.Data + (size_for_masks_bitarrays_one * n));
ImBitArrayPtr remaining_mask = (ImBitArrayPtr)(void*)(g.TempBuffer.Data + (size_for_masks_bitarrays_one * 4));
// 1. Scan channels and take note of those which can be merged
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
if (!IM_BITARRAY_TESTBIT(table->VisibleMaskByIndex, column_n))
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
const int merge_group_sub_count = has_freeze_v ? 2 : 1;
for (int merge_group_sub_n = 0; merge_group_sub_n < merge_group_sub_count; merge_group_sub_n++)
{
const int channel_no = (merge_group_sub_n == 0) ? column->DrawChannelFrozen : column->DrawChannelUnfrozen;
// Don't attempt to merge if there are multiple draw calls within the column
ImDrawChannel* src_channel = &splitter->_Channels[channel_no];
if (src_channel->_CmdBuffer.Size > 0 && src_channel->_CmdBuffer.back().ElemCount == 0 && src_channel->_CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
src_channel->_CmdBuffer.pop_back();
if (src_channel->_CmdBuffer.Size != 1)
continue;
// Find out the width of this merge group and check if it will fit in our column
// (note that we assume that rendering didn't stray on the left direction. we should need a CursorMinPos to detect it)
if (!(column->Flags & ImGuiTableColumnFlags_NoClip))
{
float content_max_x;
if (!has_freeze_v)
content_max_x = ImMax(column->ContentMaxXUnfrozen, column->ContentMaxXHeadersUsed); // No row freeze
else if (merge_group_sub_n == 0)
content_max_x = ImMax(column->ContentMaxXFrozen, column->ContentMaxXHeadersUsed); // Row freeze: use width before freeze
else
content_max_x = column->ContentMaxXUnfrozen; // Row freeze: use width after freeze
if (content_max_x > column->ClipRect.Max.x)
continue;
}
const int merge_group_n = (has_freeze_h && column_n < table->FreezeColumnsCount ? 0 : 1) + (has_freeze_v && merge_group_sub_n == 0 ? 0 : 2);
IM_ASSERT(channel_no < max_draw_channels);
MergeGroup* merge_group = &merge_groups[merge_group_n];
if (merge_group->ChannelsCount == 0)
merge_group->ClipRect = ImRect(+FLT_MAX, +FLT_MAX, -FLT_MAX, -FLT_MAX);
ImBitArraySetBit(merge_group->ChannelsMask, channel_no);
merge_group->ChannelsCount++;
merge_group->ClipRect.Add(src_channel->_CmdBuffer[0].ClipRect);
merge_group_mask |= (1 << merge_group_n);
}
// Invalidate current draw channel
// (we don't clear DrawChannelFrozen/DrawChannelUnfrozen solely to facilitate debugging/later inspection of data)
column->DrawChannelCurrent = (ImGuiTableDrawChannelIdx)-1;
}
// [DEBUG] Display merge groups
#if 0
if (g.IO.KeyShift)
for (int merge_group_n = 0; merge_group_n < IM_ARRAYSIZE(merge_groups); merge_group_n++)
{
MergeGroup* merge_group = &merge_groups[merge_group_n];
if (merge_group->ChannelsCount == 0)
continue;
char buf[32];
ImFormatString(buf, 32, "MG%d:%d", merge_group_n, merge_group->ChannelsCount);
ImVec2 text_pos = merge_group->ClipRect.Min + ImVec2(4, 4);
ImVec2 text_size = CalcTextSize(buf, NULL);
GetForegroundDrawList()->AddRectFilled(text_pos, text_pos + text_size, IM_COL32(0, 0, 0, 255));
GetForegroundDrawList()->AddText(text_pos, IM_COL32(255, 255, 0, 255), buf, NULL);
GetForegroundDrawList()->AddRect(merge_group->ClipRect.Min, merge_group->ClipRect.Max, IM_COL32(255, 255, 0, 255));
}
#endif
// 2. Rewrite channel list in our preferred order
if (merge_group_mask != 0)
{
// We skip channel 0 (Bg0/Bg1) and 1 (Bg2 frozen) from the shuffling since they won't move - see channels allocation in TableSetupDrawChannels().
const int LEADING_DRAW_CHANNELS = 2;
g.DrawChannelsTempMergeBuffer.resize(splitter->_Count - LEADING_DRAW_CHANNELS); // Use shared temporary storage so the allocation gets amortized
ImDrawChannel* dst_tmp = g.DrawChannelsTempMergeBuffer.Data;
ImBitArraySetBitRange(remaining_mask, LEADING_DRAW_CHANNELS, splitter->_Count);
ImBitArrayClearBit(remaining_mask, table->Bg2DrawChannelUnfrozen);
IM_ASSERT(has_freeze_v == false || table->Bg2DrawChannelUnfrozen != TABLE_DRAW_CHANNEL_BG2_FROZEN);
int remaining_count = splitter->_Count - (has_freeze_v ? LEADING_DRAW_CHANNELS + 1 : LEADING_DRAW_CHANNELS);
//ImRect host_rect = (table->InnerWindow == table->OuterWindow) ? table->InnerClipRect : table->HostClipRect;
ImRect host_rect = table->HostClipRect;
for (int merge_group_n = 0; merge_group_n < IM_ARRAYSIZE(merge_groups); merge_group_n++)
{
if (int merge_channels_count = merge_groups[merge_group_n].ChannelsCount)
{
MergeGroup* merge_group = &merge_groups[merge_group_n];
ImRect merge_clip_rect = merge_group->ClipRect;
// Extend outer-most clip limits to match those of host, so draw calls can be merged even if
// outer-most columns have some outer padding offsetting them from their parent ClipRect.
// The principal cases this is dealing with are:
// - On a same-window table (not scrolling = single group), all fitting columns ClipRect -> will extend and match host ClipRect -> will merge
// - Columns can use padding and have left-most ClipRect.Min.x and right-most ClipRect.Max.x != from host ClipRect -> will extend and match host ClipRect -> will merge
// FIXME-TABLE FIXME-WORKRECT: We are wasting a merge opportunity on tables without scrolling if column doesn't fit
// within host clip rect, solely because of the half-padding difference between window->WorkRect and window->InnerClipRect.
if ((merge_group_n & 1) == 0 || !has_freeze_h)
merge_clip_rect.Min.x = ImMin(merge_clip_rect.Min.x, host_rect.Min.x);
if ((merge_group_n & 2) == 0 || !has_freeze_v)
merge_clip_rect.Min.y = ImMin(merge_clip_rect.Min.y, host_rect.Min.y);
if ((merge_group_n & 1) != 0)
merge_clip_rect.Max.x = ImMax(merge_clip_rect.Max.x, host_rect.Max.x);
if ((merge_group_n & 2) != 0 && (table->Flags & ImGuiTableFlags_NoHostExtendY) == 0)
merge_clip_rect.Max.y = ImMax(merge_clip_rect.Max.y, host_rect.Max.y);
#if 0
GetOverlayDrawList()->AddRect(merge_group->ClipRect.Min, merge_group->ClipRect.Max, IM_COL32(255, 0, 0, 200), 0.0f, 0, 1.0f);
GetOverlayDrawList()->AddLine(merge_group->ClipRect.Min, merge_clip_rect.Min, IM_COL32(255, 100, 0, 200));
GetOverlayDrawList()->AddLine(merge_group->ClipRect.Max, merge_clip_rect.Max, IM_COL32(255, 100, 0, 200));
#endif
remaining_count -= merge_group->ChannelsCount;
for (int n = 0; n < (size_for_masks_bitarrays_one >> 2); n++)
remaining_mask[n] &= ~merge_group->ChannelsMask[n];
for (int n = 0; n < splitter->_Count && merge_channels_count != 0; n++)
{
// Copy + overwrite new clip rect
if (!IM_BITARRAY_TESTBIT(merge_group->ChannelsMask, n))
continue;
IM_BITARRAY_CLEARBIT(merge_group->ChannelsMask, n);
merge_channels_count--;
ImDrawChannel* channel = &splitter->_Channels[n];
IM_ASSERT(channel->_CmdBuffer.Size == 1 && merge_clip_rect.Contains(ImRect(channel->_CmdBuffer[0].ClipRect)));
channel->_CmdBuffer[0].ClipRect = merge_clip_rect.ToVec4();
memcpy(dst_tmp++, channel, sizeof(ImDrawChannel));
}
}
// Make sure Bg2DrawChannelUnfrozen appears in the middle of our groups (whereas Bg0/Bg1 and Bg2 frozen are fixed to 0 and 1)
if (merge_group_n == 1 && has_freeze_v)
memcpy(dst_tmp++, &splitter->_Channels[table->Bg2DrawChannelUnfrozen], sizeof(ImDrawChannel));
}
// Append unmergeable channels that we didn't reorder at the end of the list
for (int n = 0; n < splitter->_Count && remaining_count != 0; n++)
{
if (!IM_BITARRAY_TESTBIT(remaining_mask, n))
continue;
ImDrawChannel* channel = &splitter->_Channels[n];
memcpy(dst_tmp++, channel, sizeof(ImDrawChannel));
remaining_count--;
}
IM_ASSERT(dst_tmp == g.DrawChannelsTempMergeBuffer.Data + g.DrawChannelsTempMergeBuffer.Size);
memcpy(splitter->_Channels.Data + LEADING_DRAW_CHANNELS, g.DrawChannelsTempMergeBuffer.Data, (splitter->_Count - LEADING_DRAW_CHANNELS) * sizeof(ImDrawChannel));
}
}
// FIXME-TABLE: This is a mess, need to redesign how we render borders (as some are also done in TableEndRow)
void ImGui::TableDrawBorders(ImGuiTable* table)
{
ImGuiWindow* inner_window = table->InnerWindow;
if (!table->OuterWindow->ClipRect.Overlaps(table->OuterRect))
return;
ImDrawList* inner_drawlist = inner_window->DrawList;
table->DrawSplitter->SetCurrentChannel(inner_drawlist, TABLE_DRAW_CHANNEL_BG0);
inner_drawlist->PushClipRect(table->Bg0ClipRectForDrawCmd.Min, table->Bg0ClipRectForDrawCmd.Max, false);
// Draw inner border and resizing feedback
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
const float border_size = TABLE_BORDER_SIZE;
const float draw_y1 = table->InnerRect.Min.y;
const float draw_y2_body = table->InnerRect.Max.y;
const float draw_y2_head = table->IsUsingHeaders ? ImMin(table->InnerRect.Max.y, (table->FreezeRowsCount >= 1 ? table->InnerRect.Min.y : table->WorkRect.Min.y) + table_instance->LastFirstRowHeight) : draw_y1;
if (table->Flags & ImGuiTableFlags_BordersInnerV)
{
for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
{
if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByDisplayOrder, order_n))
continue;
const int column_n = table->DisplayOrderToIndex[order_n];
ImGuiTableColumn* column = &table->Columns[column_n];
const bool is_hovered = (table->HoveredColumnBorder == column_n);
const bool is_resized = (table->ResizedColumn == column_n) && (table->InstanceInteracted == table->InstanceCurrent);
const bool is_resizable = (column->Flags & (ImGuiTableColumnFlags_NoResize | ImGuiTableColumnFlags_NoDirectResize_)) == 0;
const bool is_frozen_separator = (table->FreezeColumnsCount == order_n + 1);
if (column->MaxX > table->InnerClipRect.Max.x && !is_resized)
continue;
// Decide whether right-most column is visible
if (column->NextEnabledColumn == -1 && !is_resizable)
if ((table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame || (table->Flags & ImGuiTableFlags_NoHostExtendX))
continue;
if (column->MaxX <= column->ClipRect.Min.x) // FIXME-TABLE FIXME-STYLE: Assume BorderSize==1, this is problematic if we want to increase the border size..
continue;
// Draw in outer window so right-most column won't be clipped
// Always draw full height border when being resized/hovered, or on the delimitation of frozen column scrolling.
ImU32 col;
float draw_y2;
if (is_hovered || is_resized || is_frozen_separator)
{
draw_y2 = draw_y2_body;
col = is_resized ? GetColorU32(ImGuiCol_SeparatorActive) : is_hovered ? GetColorU32(ImGuiCol_SeparatorHovered) : table->BorderColorStrong;
}
else
{
draw_y2 = (table->Flags & (ImGuiTableFlags_NoBordersInBody | ImGuiTableFlags_NoBordersInBodyUntilResize)) ? draw_y2_head : draw_y2_body;
col = (table->Flags & (ImGuiTableFlags_NoBordersInBody | ImGuiTableFlags_NoBordersInBodyUntilResize)) ? table->BorderColorStrong : table->BorderColorLight;
}
if (draw_y2 > draw_y1)
inner_drawlist->AddLine(ImVec2(column->MaxX, draw_y1), ImVec2(column->MaxX, draw_y2), col, border_size);
}
}
// Draw outer border
// FIXME: could use AddRect or explicit VLine/HLine helper?
if (table->Flags & ImGuiTableFlags_BordersOuter)
{
// Display outer border offset by 1 which is a simple way to display it without adding an extra draw call
// (Without the offset, in outer_window it would be rendered behind cells, because child windows are above their
// parent. In inner_window, it won't reach out over scrollbars. Another weird solution would be to display part
// of it in inner window, and the part that's over scrollbars in the outer window..)
// Either solution currently won't allow us to use a larger border size: the border would clipped.
const ImRect outer_border = table->OuterRect;
const ImU32 outer_col = table->BorderColorStrong;
if ((table->Flags & ImGuiTableFlags_BordersOuter) == ImGuiTableFlags_BordersOuter)
{
inner_drawlist->AddRect(outer_border.Min, outer_border.Max, outer_col, 0.0f, 0, border_size);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterV)
{
inner_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Min.x, outer_border.Max.y), outer_col, border_size);
inner_drawlist->AddLine(ImVec2(outer_border.Max.x, outer_border.Min.y), outer_border.Max, outer_col, border_size);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterH)
{
inner_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Max.x, outer_border.Min.y), outer_col, border_size);
inner_drawlist->AddLine(ImVec2(outer_border.Min.x, outer_border.Max.y), outer_border.Max, outer_col, border_size);
}
}
if ((table->Flags & ImGuiTableFlags_BordersInnerH) && table->RowPosY2 < table->OuterRect.Max.y)
{
// Draw bottom-most row border
const float border_y = table->RowPosY2;
if (border_y >= table->BgClipRect.Min.y && border_y < table->BgClipRect.Max.y)
inner_drawlist->AddLine(ImVec2(table->BorderX1, border_y), ImVec2(table->BorderX2, border_y), table->BorderColorLight, border_size);
}
inner_drawlist->PopClipRect();
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Sorting
//-------------------------------------------------------------------------
// - TableGetSortSpecs()
// - TableFixColumnSortDirection() [Internal]
// - TableGetColumnNextSortDirection() [Internal]
// - TableSetColumnSortDirection() [Internal]
// - TableSortSpecsSanitize() [Internal]
// - TableSortSpecsBuild() [Internal]
//-------------------------------------------------------------------------
// Return NULL if no sort specs (most often when ImGuiTableFlags_Sortable is not set)
// You can sort your data again when 'SpecsChanged == true'. It will be true with sorting specs have changed since
// last call, or the first time.
// Lifetime: don't hold on this pointer over multiple frames or past any subsequent call to BeginTable()!
ImGuiTableSortSpecs* ImGui::TableGetSortSpecs()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL);
if (!(table->Flags & ImGuiTableFlags_Sortable))
return NULL;
// Require layout (in case TableHeadersRow() hasn't been called) as it may alter IsSortSpecsDirty in some paths.
if (!table->IsLayoutLocked)
TableUpdateLayout(table);
TableSortSpecsBuild(table);
return &table->SortSpecs;
}
static inline ImGuiSortDirection TableGetColumnAvailSortDirection(ImGuiTableColumn* column, int n)
{
IM_ASSERT(n < column->SortDirectionsAvailCount);
return (column->SortDirectionsAvailList >> (n << 1)) & 0x03;
}
// Fix sort direction if currently set on a value which is unavailable (e.g. activating NoSortAscending/NoSortDescending)
void ImGui::TableFixColumnSortDirection(ImGuiTable* table, ImGuiTableColumn* column)
{
if (column->SortOrder == -1 || (column->SortDirectionsAvailMask & (1 << column->SortDirection)) != 0)
return;
column->SortDirection = (ImU8)TableGetColumnAvailSortDirection(column, 0);
table->IsSortSpecsDirty = true;
}
// Calculate next sort direction that would be set after clicking the column
// - If the PreferSortDescending flag is set, we will default to a Descending direction on the first click.
// - Note that the PreferSortAscending flag is never checked, it is essentially the default and therefore a no-op.
IM_STATIC_ASSERT(ImGuiSortDirection_None == 0 && ImGuiSortDirection_Ascending == 1 && ImGuiSortDirection_Descending == 2);
ImGuiSortDirection ImGui::TableGetColumnNextSortDirection(ImGuiTableColumn* column)
{
IM_ASSERT(column->SortDirectionsAvailCount > 0);
if (column->SortOrder == -1)
return TableGetColumnAvailSortDirection(column, 0);
for (int n = 0; n < 3; n++)
if (column->SortDirection == TableGetColumnAvailSortDirection(column, n))
return TableGetColumnAvailSortDirection(column, (n + 1) % column->SortDirectionsAvailCount);
IM_ASSERT(0);
return ImGuiSortDirection_None;
}
// Note that the NoSortAscending/NoSortDescending flags are processed in TableSortSpecsSanitize(), and they may change/revert
// the value of SortDirection. We could technically also do it here but it would be unnecessary and duplicate code.
void ImGui::TableSetColumnSortDirection(int column_n, ImGuiSortDirection sort_direction, bool append_to_sort_specs)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (!(table->Flags & ImGuiTableFlags_SortMulti))
append_to_sort_specs = false;
if (!(table->Flags & ImGuiTableFlags_SortTristate))
IM_ASSERT(sort_direction != ImGuiSortDirection_None);
ImGuiTableColumnIdx sort_order_max = 0;
if (append_to_sort_specs)
for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
sort_order_max = ImMax(sort_order_max, table->Columns[other_column_n].SortOrder);
ImGuiTableColumn* column = &table->Columns[column_n];
column->SortDirection = (ImU8)sort_direction;
if (column->SortDirection == ImGuiSortDirection_None)
column->SortOrder = -1;
else if (column->SortOrder == -1 || !append_to_sort_specs)
column->SortOrder = append_to_sort_specs ? sort_order_max + 1 : 0;
for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
{
ImGuiTableColumn* other_column = &table->Columns[other_column_n];
if (other_column != column && !append_to_sort_specs)
other_column->SortOrder = -1;
TableFixColumnSortDirection(table, other_column);
}
table->IsSettingsDirty = true;
table->IsSortSpecsDirty = true;
}
void ImGui::TableSortSpecsSanitize(ImGuiTable* table)
{
IM_ASSERT(table->Flags & ImGuiTableFlags_Sortable);
// Clear SortOrder from hidden column and verify that there's no gap or duplicate.
int sort_order_count = 0;
ImU64 sort_order_mask = 0x00;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->SortOrder != -1 && !column->IsEnabled)
column->SortOrder = -1;
if (column->SortOrder == -1)
continue;
sort_order_count++;
sort_order_mask |= ((ImU64)1 << column->SortOrder);
IM_ASSERT(sort_order_count < (int)sizeof(sort_order_mask) * 8);
}
const bool need_fix_linearize = ((ImU64)1 << sort_order_count) != (sort_order_mask + 1);
const bool need_fix_single_sort_order = (sort_order_count > 1) && !(table->Flags & ImGuiTableFlags_SortMulti);
if (need_fix_linearize || need_fix_single_sort_order)
{
ImU64 fixed_mask = 0x00;
for (int sort_n = 0; sort_n < sort_order_count; sort_n++)
{
// Fix: Rewrite sort order fields if needed so they have no gap or duplicate.
// (e.g. SortOrder 0 disappeared, SortOrder 1..2 exists --> rewrite then as SortOrder 0..1)
int column_with_smallest_sort_order = -1;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
if ((fixed_mask & ((ImU64)1 << (ImU64)column_n)) == 0 && table->Columns[column_n].SortOrder != -1)
if (column_with_smallest_sort_order == -1 || table->Columns[column_n].SortOrder < table->Columns[column_with_smallest_sort_order].SortOrder)
column_with_smallest_sort_order = column_n;
IM_ASSERT(column_with_smallest_sort_order != -1);
fixed_mask |= ((ImU64)1 << column_with_smallest_sort_order);
table->Columns[column_with_smallest_sort_order].SortOrder = (ImGuiTableColumnIdx)sort_n;
// Fix: Make sure only one column has a SortOrder if ImGuiTableFlags_MultiSortable is not set.
if (need_fix_single_sort_order)
{
sort_order_count = 1;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
if (column_n != column_with_smallest_sort_order)
table->Columns[column_n].SortOrder = -1;
break;
}
}
}
// Fallback default sort order (if no column had the ImGuiTableColumnFlags_DefaultSort flag)
if (sort_order_count == 0 && !(table->Flags & ImGuiTableFlags_SortTristate))
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->IsEnabled && !(column->Flags & ImGuiTableColumnFlags_NoSort))
{
sort_order_count = 1;
column->SortOrder = 0;
column->SortDirection = (ImU8)TableGetColumnAvailSortDirection(column, 0);
break;
}
}
table->SortSpecsCount = (ImGuiTableColumnIdx)sort_order_count;
}
void ImGui::TableSortSpecsBuild(ImGuiTable* table)
{
bool dirty = table->IsSortSpecsDirty;
if (dirty)
{
TableSortSpecsSanitize(table);
table->SortSpecsMulti.resize(table->SortSpecsCount <= 1 ? 0 : table->SortSpecsCount);
table->SortSpecs.SpecsDirty = true; // Mark as dirty for user
table->IsSortSpecsDirty = false; // Mark as not dirty for us
}
// Write output
ImGuiTableColumnSortSpecs* sort_specs = (table->SortSpecsCount == 0) ? NULL : (table->SortSpecsCount == 1) ? &table->SortSpecsSingle : table->SortSpecsMulti.Data;
if (dirty && sort_specs != NULL)
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->SortOrder == -1)
continue;
IM_ASSERT(column->SortOrder < table->SortSpecsCount);
ImGuiTableColumnSortSpecs* sort_spec = &sort_specs[column->SortOrder];
sort_spec->ColumnUserID = column->UserID;
sort_spec->ColumnIndex = (ImGuiTableColumnIdx)column_n;
sort_spec->SortOrder = (ImGuiTableColumnIdx)column->SortOrder;
sort_spec->SortDirection = column->SortDirection;
}
table->SortSpecs.Specs = sort_specs;
table->SortSpecs.SpecsCount = table->SortSpecsCount;
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Headers
//-------------------------------------------------------------------------
// - TableGetHeaderRowHeight() [Internal]
// - TableHeadersRow()
// - TableHeader()
//-------------------------------------------------------------------------
float ImGui::TableGetHeaderRowHeight()
{
// Caring for a minor edge case:
// Calculate row height, for the unlikely case that some labels may be taller than others.
// If we didn't do that, uneven header height would highlight but smaller one before the tallest wouldn't catch input for all height.
// In your custom header row you may omit this all together and just call TableNextRow() without a height...
float row_height = GetTextLineHeight();
int columns_count = TableGetColumnCount();
for (int column_n = 0; column_n < columns_count; column_n++)
{
ImGuiTableColumnFlags flags = TableGetColumnFlags(column_n);
if ((flags & ImGuiTableColumnFlags_IsEnabled) && !(flags & ImGuiTableColumnFlags_NoHeaderLabel))
row_height = ImMax(row_height, CalcTextSize(TableGetColumnName(column_n)).y);
}
row_height += GetStyle().CellPadding.y * 2.0f;
return row_height;
}
// [Public] This is a helper to output TableHeader() calls based on the column names declared in TableSetupColumn().
// The intent is that advanced users willing to create customized headers would not need to use this helper
// and can create their own! For example: TableHeader() may be preceeded by Checkbox() or other custom widgets.
// See 'Demo->Tables->Custom headers' for a demonstration of implementing a custom version of this.
// This code is constructed to not make much use of internal functions, as it is intended to be a template to copy.
// FIXME-TABLE: TableOpenContextMenu() and TableGetHeaderRowHeight() are not public.
void ImGui::TableHeadersRow()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Need to call TableHeadersRow() after BeginTable()!");
// Layout if not already done (this is automatically done by TableNextRow, we do it here solely to facilitate stepping in debugger as it is frequent to step in TableUpdateLayout)
if (!table->IsLayoutLocked)
TableUpdateLayout(table);
// Open row
const float row_y1 = GetCursorScreenPos().y;
const float row_height = TableGetHeaderRowHeight();
TableNextRow(ImGuiTableRowFlags_Headers, row_height);
if (table->HostSkipItems) // Merely an optimization, you may skip in your own code.
return;
const int columns_count = TableGetColumnCount();
for (int column_n = 0; column_n < columns_count; column_n++)
{
if (!TableSetColumnIndex(column_n))
continue;
// Push an id to allow unnamed labels (generally accidental, but let's behave nicely with them)
// In your own code you may omit the PushID/PopID all-together, provided you know they won't collide.
const char* name = (TableGetColumnFlags(column_n) & ImGuiTableColumnFlags_NoHeaderLabel) ? "" : TableGetColumnName(column_n);
PushID(column_n);
TableHeader(name);
PopID();
}
// Allow opening popup from the right-most section after the last column.
ImVec2 mouse_pos = ImGui::GetMousePos();
if (IsMouseReleased(1) && TableGetHoveredColumn() == columns_count)
if (mouse_pos.y >= row_y1 && mouse_pos.y < row_y1 + row_height)
TableOpenContextMenu(-1); // Will open a non-column-specific popup.
}
// Emit a column header (text + optional sort order)
// We cpu-clip text here so that all columns headers can be merged into a same draw call.
// Note that because of how we cpu-clip and display sorting indicators, you _cannot_ use SameLine() after a TableHeader()
void ImGui::TableHeader(const char* label)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Need to call TableHeader() after BeginTable()!");
IM_ASSERT(table->CurrentColumn != -1);
const int column_n = table->CurrentColumn;
ImGuiTableColumn* column = &table->Columns[column_n];
// Label
if (label == NULL)
label = "";
const char* label_end = FindRenderedTextEnd(label);
ImVec2 label_size = CalcTextSize(label, label_end, true);
ImVec2 label_pos = window->DC.CursorPos;
// If we already got a row height, there's use that.
// FIXME-TABLE: Padding problem if the correct outer-padding CellBgRect strays off our ClipRect?
ImRect cell_r = TableGetCellBgRect(table, column_n);
float label_height = ImMax(label_size.y, table->RowMinHeight - table->CellPaddingY * 2.0f);
// Calculate ideal size for sort order arrow
float w_arrow = 0.0f;
float w_sort_text = 0.0f;
char sort_order_suf[4] = "";
const float ARROW_SCALE = 0.65f;
if ((table->Flags & ImGuiTableFlags_Sortable) && !(column->Flags & ImGuiTableColumnFlags_NoSort))
{
w_arrow = ImFloor(g.FontSize * ARROW_SCALE + g.Style.FramePadding.x);
if (column->SortOrder > 0)
{
ImFormatString(sort_order_suf, IM_ARRAYSIZE(sort_order_suf), "%d", column->SortOrder + 1);
w_sort_text = g.Style.ItemInnerSpacing.x + CalcTextSize(sort_order_suf).x;
}
}
// We feed our unclipped width to the column without writing on CursorMaxPos, so that column is still considering for merging.
float max_pos_x = label_pos.x + label_size.x + w_sort_text + w_arrow;
column->ContentMaxXHeadersUsed = ImMax(column->ContentMaxXHeadersUsed, column->WorkMaxX);
column->ContentMaxXHeadersIdeal = ImMax(column->ContentMaxXHeadersIdeal, max_pos_x);
// Keep header highlighted when context menu is open.
const bool selected = (table->IsContextPopupOpen && table->ContextPopupColumn == column_n && table->InstanceInteracted == table->InstanceCurrent);
ImGuiID id = window->GetID(label);
ImRect bb(cell_r.Min.x, cell_r.Min.y, cell_r.Max.x, ImMax(cell_r.Max.y, cell_r.Min.y + label_height + g.Style.CellPadding.y * 2.0f));
ItemSize(ImVec2(0.0f, label_height)); // Don't declare unclipped width, it'll be fed ContentMaxPosHeadersIdeal
if (!ItemAdd(bb, id))
return;
//GetForegroundDrawList()->AddRect(cell_r.Min, cell_r.Max, IM_COL32(255, 0, 0, 255)); // [DEBUG]
//GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(255, 0, 0, 255)); // [DEBUG]
// Using AllowItemOverlap mode because we cover the whole cell, and we want user to be able to submit subsequent items.
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_AllowItemOverlap);
if (g.ActiveId != id)
SetItemAllowOverlap();
if (held || hovered || selected)
{
const ImU32 col = GetColorU32(held ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
//RenderFrame(bb.Min, bb.Max, col, false, 0.0f);
TableSetBgColor(ImGuiTableBgTarget_CellBg, col, table->CurrentColumn);
}
else
{
// Submit single cell bg color in the case we didn't submit a full header row
if ((table->RowFlags & ImGuiTableRowFlags_Headers) == 0)
TableSetBgColor(ImGuiTableBgTarget_CellBg, GetColorU32(ImGuiCol_TableHeaderBg), table->CurrentColumn);
}
RenderNavHighlight(bb, id, ImGuiNavHighlightFlags_TypeThin | ImGuiNavHighlightFlags_NoRounding);
if (held)
table->HeldHeaderColumn = (ImGuiTableColumnIdx)column_n;
window->DC.CursorPos.y -= g.Style.ItemSpacing.y * 0.5f;
// Drag and drop to re-order columns.
// FIXME-TABLE: Scroll request while reordering a column and it lands out of the scrolling zone.
if (held && (table->Flags & ImGuiTableFlags_Reorderable) && IsMouseDragging(0) && !g.DragDropActive)
{
// While moving a column it will jump on the other side of the mouse, so we also test for MouseDelta.x
table->ReorderColumn = (ImGuiTableColumnIdx)column_n;
table->InstanceInteracted = table->InstanceCurrent;
// We don't reorder: through the frozen<>unfrozen line, or through a column that is marked with ImGuiTableColumnFlags_NoReorder.
if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < cell_r.Min.x)
if (ImGuiTableColumn* prev_column = (column->PrevEnabledColumn != -1) ? &table->Columns[column->PrevEnabledColumn] : NULL)
if (!((column->Flags | prev_column->Flags) & ImGuiTableColumnFlags_NoReorder))
if ((column->IndexWithinEnabledSet < table->FreezeColumnsRequest) == (prev_column->IndexWithinEnabledSet < table->FreezeColumnsRequest))
table->ReorderColumnDir = -1;
if (g.IO.MouseDelta.x > 0.0f && g.IO.MousePos.x > cell_r.Max.x)
if (ImGuiTableColumn* next_column = (column->NextEnabledColumn != -1) ? &table->Columns[column->NextEnabledColumn] : NULL)
if (!((column->Flags | next_column->Flags) & ImGuiTableColumnFlags_NoReorder))
if ((column->IndexWithinEnabledSet < table->FreezeColumnsRequest) == (next_column->IndexWithinEnabledSet < table->FreezeColumnsRequest))
table->ReorderColumnDir = +1;
}
// Sort order arrow
const float ellipsis_max = cell_r.Max.x - w_arrow - w_sort_text;
if ((table->Flags & ImGuiTableFlags_Sortable) && !(column->Flags & ImGuiTableColumnFlags_NoSort))
{
if (column->SortOrder != -1)
{
float x = ImMax(cell_r.Min.x, cell_r.Max.x - w_arrow - w_sort_text);
float y = label_pos.y;
if (column->SortOrder > 0)
{
PushStyleColor(ImGuiCol_Text, GetColorU32(ImGuiCol_Text, 0.70f));
RenderText(ImVec2(x + g.Style.ItemInnerSpacing.x, y), sort_order_suf);
PopStyleColor();
x += w_sort_text;
}
RenderArrow(window->DrawList, ImVec2(x, y), GetColorU32(ImGuiCol_Text), column->SortDirection == ImGuiSortDirection_Ascending ? ImGuiDir_Up : ImGuiDir_Down, ARROW_SCALE);
}
// Handle clicking on column header to adjust Sort Order
if (pressed && table->ReorderColumn != column_n)
{
ImGuiSortDirection sort_direction = TableGetColumnNextSortDirection(column);
TableSetColumnSortDirection(column_n, sort_direction, g.IO.KeyShift);
}
}
// Render clipped label. Clipping here ensure that in the majority of situations, all our header cells will
// be merged into a single draw call.
//window->DrawList->AddCircleFilled(ImVec2(ellipsis_max, label_pos.y), 40, IM_COL32_WHITE);
RenderTextEllipsis(window->DrawList, label_pos, ImVec2(ellipsis_max, label_pos.y + label_height + g.Style.FramePadding.y), ellipsis_max, ellipsis_max, label, label_end, &label_size);
const bool text_clipped = label_size.x > (ellipsis_max - label_pos.x);
if (text_clipped && hovered && g.ActiveId == 0 && IsItemHovered(ImGuiHoveredFlags_DelayNormal))
SetTooltip("%.*s", (int)(label_end - label), label);
// We don't use BeginPopupContextItem() because we want the popup to stay up even after the column is hidden
if (IsMouseReleased(1) && IsItemHovered())
TableOpenContextMenu(column_n);
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Context Menu
//-------------------------------------------------------------------------
// - TableOpenContextMenu() [Internal]
// - TableDrawContextMenu() [Internal]
//-------------------------------------------------------------------------
// Use -1 to open menu not specific to a given column.
void ImGui::TableOpenContextMenu(int column_n)
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
if (column_n == -1 && table->CurrentColumn != -1) // When called within a column automatically use this one (for consistency)
column_n = table->CurrentColumn;
if (column_n == table->ColumnsCount) // To facilitate using with TableGetHoveredColumn()
column_n = -1;
IM_ASSERT(column_n >= -1 && column_n < table->ColumnsCount);
if (table->Flags & (ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
{
table->IsContextPopupOpen = true;
table->ContextPopupColumn = (ImGuiTableColumnIdx)column_n;
table->InstanceInteracted = table->InstanceCurrent;
const ImGuiID context_menu_id = ImHashStr("##ContextMenu", 0, table->ID);
OpenPopupEx(context_menu_id, ImGuiPopupFlags_None);
}
}
bool ImGui::TableBeginContextMenuPopup(ImGuiTable* table)
{
if (!table->IsContextPopupOpen || table->InstanceCurrent != table->InstanceInteracted)
return false;
const ImGuiID context_menu_id = ImHashStr("##ContextMenu", 0, table->ID);
if (BeginPopupEx(context_menu_id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings))
return true;
table->IsContextPopupOpen = false;
return false;
}
// Output context menu into current window (generally a popup)
// FIXME-TABLE: Ideally this should be writable by the user. Full programmatic access to that data?
void ImGui::TableDrawContextMenu(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
bool want_separator = false;
const int column_n = (table->ContextPopupColumn >= 0 && table->ContextPopupColumn < table->ColumnsCount) ? table->ContextPopupColumn : -1;
ImGuiTableColumn* column = (column_n != -1) ? &table->Columns[column_n] : NULL;
// Sizing
if (table->Flags & ImGuiTableFlags_Resizable)
{
if (column != NULL)
{
const bool can_resize = !(column->Flags & ImGuiTableColumnFlags_NoResize) && column->IsEnabled;
if (MenuItem(LocalizeGetMsg(ImGuiLocKey_TableSizeOne), NULL, false, can_resize)) // "###SizeOne"
TableSetColumnWidthAutoSingle(table, column_n);
}
const char* size_all_desc;
if (table->ColumnsEnabledFixedCount == table->ColumnsEnabledCount && (table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame)
size_all_desc = LocalizeGetMsg(ImGuiLocKey_TableSizeAllFit); // "###SizeAll" All fixed
else
size_all_desc = LocalizeGetMsg(ImGuiLocKey_TableSizeAllDefault); // "###SizeAll" All stretch or mixed
if (MenuItem(size_all_desc, NULL))
TableSetColumnWidthAutoAll(table);
want_separator = true;
}
// Ordering
if (table->Flags & ImGuiTableFlags_Reorderable)
{
if (MenuItem(LocalizeGetMsg(ImGuiLocKey_TableResetOrder), NULL, false, !table->IsDefaultDisplayOrder))
table->IsResetDisplayOrderRequest = true;
want_separator = true;
}
// Reset all (should work but seems unnecessary/noisy to expose?)
//if (MenuItem("Reset all"))
// table->IsResetAllRequest = true;
// Sorting
// (modify TableOpenContextMenu() to add _Sortable flag if enabling this)
#if 0
if ((table->Flags & ImGuiTableFlags_Sortable) && column != NULL && (column->Flags & ImGuiTableColumnFlags_NoSort) == 0)
{
if (want_separator)
Separator();
want_separator = true;
bool append_to_sort_specs = g.IO.KeyShift;
if (MenuItem("Sort in Ascending Order", NULL, column->SortOrder != -1 && column->SortDirection == ImGuiSortDirection_Ascending, (column->Flags & ImGuiTableColumnFlags_NoSortAscending) == 0))
TableSetColumnSortDirection(table, column_n, ImGuiSortDirection_Ascending, append_to_sort_specs);
if (MenuItem("Sort in Descending Order", NULL, column->SortOrder != -1 && column->SortDirection == ImGuiSortDirection_Descending, (column->Flags & ImGuiTableColumnFlags_NoSortDescending) == 0))
TableSetColumnSortDirection(table, column_n, ImGuiSortDirection_Descending, append_to_sort_specs);
}
#endif
// Hiding / Visibility
if (table->Flags & ImGuiTableFlags_Hideable)
{
if (want_separator)
Separator();
want_separator = true;
PushItemFlag(ImGuiItemFlags_SelectableDontClosePopup, true);
for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
{
ImGuiTableColumn* other_column = &table->Columns[other_column_n];
if (other_column->Flags & ImGuiTableColumnFlags_Disabled)
continue;
const char* name = TableGetColumnName(table, other_column_n);
if (name == NULL || name[0] == 0)
name = "<Unknown>";
// Make sure we can't hide the last active column
bool menu_item_active = (other_column->Flags & ImGuiTableColumnFlags_NoHide) ? false : true;
if (other_column->IsUserEnabled && table->ColumnsEnabledCount <= 1)
menu_item_active = false;
if (MenuItem(name, NULL, other_column->IsUserEnabled, menu_item_active))
other_column->IsUserEnabledNextFrame = !other_column->IsUserEnabled;
}
PopItemFlag();
}
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Settings (.ini data)
//-------------------------------------------------------------------------
// FIXME: The binding/finding/creating flow are too confusing.
//-------------------------------------------------------------------------
// - TableSettingsInit() [Internal]
// - TableSettingsCalcChunkSize() [Internal]
// - TableSettingsCreate() [Internal]
// - TableSettingsFindByID() [Internal]
// - TableGetBoundSettings() [Internal]
// - TableResetSettings()
// - TableSaveSettings() [Internal]
// - TableLoadSettings() [Internal]
// - TableSettingsHandler_ClearAll() [Internal]
// - TableSettingsHandler_ApplyAll() [Internal]
// - TableSettingsHandler_ReadOpen() [Internal]
// - TableSettingsHandler_ReadLine() [Internal]
// - TableSettingsHandler_WriteAll() [Internal]
// - TableSettingsInstallHandler() [Internal]
//-------------------------------------------------------------------------
// [Init] 1: TableSettingsHandler_ReadXXXX() Load and parse .ini file into TableSettings.
// [Main] 2: TableLoadSettings() When table is created, bind Table to TableSettings, serialize TableSettings data into Table.
// [Main] 3: TableSaveSettings() When table properties are modified, serialize Table data into bound or new TableSettings, mark .ini as dirty.
// [Main] 4: TableSettingsHandler_WriteAll() When .ini file is dirty (which can come from other source), save TableSettings into .ini file.
//-------------------------------------------------------------------------
// Clear and initialize empty settings instance
static void TableSettingsInit(ImGuiTableSettings* settings, ImGuiID id, int columns_count, int columns_count_max)
{
IM_PLACEMENT_NEW(settings) ImGuiTableSettings();
ImGuiTableColumnSettings* settings_column = settings->GetColumnSettings();
for (int n = 0; n < columns_count_max; n++, settings_column++)
IM_PLACEMENT_NEW(settings_column) ImGuiTableColumnSettings();
settings->ID = id;
settings->ColumnsCount = (ImGuiTableColumnIdx)columns_count;
settings->ColumnsCountMax = (ImGuiTableColumnIdx)columns_count_max;
settings->WantApply = true;
}
static size_t TableSettingsCalcChunkSize(int columns_count)
{
return sizeof(ImGuiTableSettings) + (size_t)columns_count * sizeof(ImGuiTableColumnSettings);
}
ImGuiTableSettings* ImGui::TableSettingsCreate(ImGuiID id, int columns_count)
{
ImGuiContext& g = *GImGui;
ImGuiTableSettings* settings = g.SettingsTables.alloc_chunk(TableSettingsCalcChunkSize(columns_count));
TableSettingsInit(settings, id, columns_count, columns_count);
return settings;
}
// Find existing settings
ImGuiTableSettings* ImGui::TableSettingsFindByID(ImGuiID id)
{
// FIXME-OPT: Might want to store a lookup map for this?
ImGuiContext& g = *GImGui;
for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
if (settings->ID == id)
return settings;
return NULL;
}
// Get settings for a given table, NULL if none
ImGuiTableSettings* ImGui::TableGetBoundSettings(ImGuiTable* table)
{
if (table->SettingsOffset != -1)
{
ImGuiContext& g = *GImGui;
ImGuiTableSettings* settings = g.SettingsTables.ptr_from_offset(table->SettingsOffset);
IM_ASSERT(settings->ID == table->ID);
if (settings->ColumnsCountMax >= table->ColumnsCount)
return settings; // OK
settings->ID = 0; // Invalidate storage, we won't fit because of a count change
}
return NULL;
}
// Restore initial state of table (with or without saved settings)
void ImGui::TableResetSettings(ImGuiTable* table)
{
table->IsInitializing = table->IsSettingsDirty = true;
table->IsResetAllRequest = false;
table->IsSettingsRequestLoad = false; // Don't reload from ini
table->SettingsLoadedFlags = ImGuiTableFlags_None; // Mark as nothing loaded so our initialized data becomes authoritative
}
void ImGui::TableSaveSettings(ImGuiTable* table)
{
table->IsSettingsDirty = false;
if (table->Flags & ImGuiTableFlags_NoSavedSettings)
return;
// Bind or create settings data
ImGuiContext& g = *GImGui;
ImGuiTableSettings* settings = TableGetBoundSettings(table);
if (settings == NULL)
{
settings = TableSettingsCreate(table->ID, table->ColumnsCount);
table->SettingsOffset = g.SettingsTables.offset_from_ptr(settings);
}
settings->ColumnsCount = (ImGuiTableColumnIdx)table->ColumnsCount;
// Serialize ImGuiTable/ImGuiTableColumn into ImGuiTableSettings/ImGuiTableColumnSettings
IM_ASSERT(settings->ID == table->ID);
IM_ASSERT(settings->ColumnsCount == table->ColumnsCount && settings->ColumnsCountMax >= settings->ColumnsCount);
ImGuiTableColumn* column = table->Columns.Data;
ImGuiTableColumnSettings* column_settings = settings->GetColumnSettings();
bool save_ref_scale = false;
settings->SaveFlags = ImGuiTableFlags_None;
for (int n = 0; n < table->ColumnsCount; n++, column++, column_settings++)
{
const float width_or_weight = (column->Flags & ImGuiTableColumnFlags_WidthStretch) ? column->StretchWeight : column->WidthRequest;
column_settings->WidthOrWeight = width_or_weight;
column_settings->Index = (ImGuiTableColumnIdx)n;
column_settings->DisplayOrder = column->DisplayOrder;
column_settings->SortOrder = column->SortOrder;
column_settings->SortDirection = column->SortDirection;
column_settings->IsEnabled = column->IsUserEnabled;
column_settings->IsStretch = (column->Flags & ImGuiTableColumnFlags_WidthStretch) ? 1 : 0;
if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) == 0)
save_ref_scale = true;
// We skip saving some data in the .ini file when they are unnecessary to restore our state.
// Note that fixed width where initial width was derived from auto-fit will always be saved as InitStretchWeightOrWidth will be 0.0f.
// FIXME-TABLE: We don't have logic to easily compare SortOrder to DefaultSortOrder yet so it's always saved when present.
if (width_or_weight != column->InitStretchWeightOrWidth)
settings->SaveFlags |= ImGuiTableFlags_Resizable;
if (column->DisplayOrder != n)
settings->SaveFlags |= ImGuiTableFlags_Reorderable;
if (column->SortOrder != -1)
settings->SaveFlags |= ImGuiTableFlags_Sortable;
if (column->IsUserEnabled != ((column->Flags & ImGuiTableColumnFlags_DefaultHide) == 0))
settings->SaveFlags |= ImGuiTableFlags_Hideable;
}
settings->SaveFlags &= table->Flags;
settings->RefScale = save_ref_scale ? table->RefScale : 0.0f;
MarkIniSettingsDirty();
}
void ImGui::TableLoadSettings(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
table->IsSettingsRequestLoad = false;
if (table->Flags & ImGuiTableFlags_NoSavedSettings)
return;
// Bind settings
ImGuiTableSettings* settings;
if (table->SettingsOffset == -1)
{
settings = TableSettingsFindByID(table->ID);
if (settings == NULL)
return;
if (settings->ColumnsCount != table->ColumnsCount) // Allow settings if columns count changed. We could otherwise decide to return...
table->IsSettingsDirty = true;
table->SettingsOffset = g.SettingsTables.offset_from_ptr(settings);
}
else
{
settings = TableGetBoundSettings(table);
}
table->SettingsLoadedFlags = settings->SaveFlags;
table->RefScale = settings->RefScale;
// Serialize ImGuiTableSettings/ImGuiTableColumnSettings into ImGuiTable/ImGuiTableColumn
ImGuiTableColumnSettings* column_settings = settings->GetColumnSettings();
ImU64 display_order_mask = 0;
for (int data_n = 0; data_n < settings->ColumnsCount; data_n++, column_settings++)
{
int column_n = column_settings->Index;
if (column_n < 0 || column_n >= table->ColumnsCount)
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
if (settings->SaveFlags & ImGuiTableFlags_Resizable)
{
if (column_settings->IsStretch)
column->StretchWeight = column_settings->WidthOrWeight;
else
column->WidthRequest = column_settings->WidthOrWeight;
column->AutoFitQueue = 0x00;
}
if (settings->SaveFlags & ImGuiTableFlags_Reorderable)
column->DisplayOrder = column_settings->DisplayOrder;
else
column->DisplayOrder = (ImGuiTableColumnIdx)column_n;
display_order_mask |= (ImU64)1 << column->DisplayOrder;
column->IsUserEnabled = column->IsUserEnabledNextFrame = column_settings->IsEnabled;
column->SortOrder = column_settings->SortOrder;
column->SortDirection = column_settings->SortDirection;
}
// Validate and fix invalid display order data
const ImU64 expected_display_order_mask = (settings->ColumnsCount == 64) ? ~0 : ((ImU64)1 << settings->ColumnsCount) - 1;
if (display_order_mask != expected_display_order_mask)
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
table->Columns[column_n].DisplayOrder = (ImGuiTableColumnIdx)column_n;
// Rebuild index
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
table->DisplayOrderToIndex[table->Columns[column_n].DisplayOrder] = (ImGuiTableColumnIdx)column_n;
}
static void TableSettingsHandler_ClearAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
{
ImGuiContext& g = *ctx;
for (int i = 0; i != g.Tables.GetMapSize(); i++)
if (ImGuiTable* table = g.Tables.TryGetMapData(i))
table->SettingsOffset = -1;
g.SettingsTables.clear();
}
// Apply to existing windows (if any)
static void TableSettingsHandler_ApplyAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
{
ImGuiContext& g = *ctx;
for (int i = 0; i != g.Tables.GetMapSize(); i++)
if (ImGuiTable* table = g.Tables.TryGetMapData(i))
{
table->IsSettingsRequestLoad = true;
table->SettingsOffset = -1;
}
}
static void* TableSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name)
{
ImGuiID id = 0;
int columns_count = 0;
if (sscanf(name, "0x%08X,%d", &id, &columns_count) < 2)
return NULL;
if (ImGuiTableSettings* settings = ImGui::TableSettingsFindByID(id))
{
if (settings->ColumnsCountMax >= columns_count)
{
TableSettingsInit(settings, id, columns_count, settings->ColumnsCountMax); // Recycle
return settings;
}
settings->ID = 0; // Invalidate storage, we won't fit because of a count change
}
return ImGui::TableSettingsCreate(id, columns_count);
}
static void TableSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line)
{
// "Column 0 UserID=0x42AD2D21 Width=100 Visible=1 Order=0 Sort=0v"
ImGuiTableSettings* settings = (ImGuiTableSettings*)entry;
float f = 0.0f;
int column_n = 0, r = 0, n = 0;
if (sscanf(line, "RefScale=%f", &f) == 1) { settings->RefScale = f; return; }
if (sscanf(line, "Column %d%n", &column_n, &r) == 1)
{
if (column_n < 0 || column_n >= settings->ColumnsCount)
return;
line = ImStrSkipBlank(line + r);
char c = 0;
ImGuiTableColumnSettings* column = settings->GetColumnSettings() + column_n;
column->Index = (ImGuiTableColumnIdx)column_n;
if (sscanf(line, "UserID=0x%08X%n", (ImU32*)&n, &r)==1) { line = ImStrSkipBlank(line + r); column->UserID = (ImGuiID)n; }
if (sscanf(line, "Width=%d%n", &n, &r) == 1) { line = ImStrSkipBlank(line + r); column->WidthOrWeight = (float)n; column->IsStretch = 0; settings->SaveFlags |= ImGuiTableFlags_Resizable; }
if (sscanf(line, "Weight=%f%n", &f, &r) == 1) { line = ImStrSkipBlank(line + r); column->WidthOrWeight = f; column->IsStretch = 1; settings->SaveFlags |= ImGuiTableFlags_Resizable; }
if (sscanf(line, "Visible=%d%n", &n, &r) == 1) { line = ImStrSkipBlank(line + r); column->IsEnabled = (ImU8)n; settings->SaveFlags |= ImGuiTableFlags_Hideable; }
if (sscanf(line, "Order=%d%n", &n, &r) == 1) { line = ImStrSkipBlank(line + r); column->DisplayOrder = (ImGuiTableColumnIdx)n; settings->SaveFlags |= ImGuiTableFlags_Reorderable; }
if (sscanf(line, "Sort=%d%c%n", &n, &c, &r) == 2) { line = ImStrSkipBlank(line + r); column->SortOrder = (ImGuiTableColumnIdx)n; column->SortDirection = (c == '^') ? ImGuiSortDirection_Descending : ImGuiSortDirection_Ascending; settings->SaveFlags |= ImGuiTableFlags_Sortable; }
}
}
static void TableSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* buf)
{
ImGuiContext& g = *ctx;
for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
{
if (settings->ID == 0) // Skip ditched settings
continue;
// TableSaveSettings() may clear some of those flags when we establish that the data can be stripped
// (e.g. Order was unchanged)
const bool save_size = (settings->SaveFlags & ImGuiTableFlags_Resizable) != 0;
const bool save_visible = (settings->SaveFlags & ImGuiTableFlags_Hideable) != 0;
const bool save_order = (settings->SaveFlags & ImGuiTableFlags_Reorderable) != 0;
const bool save_sort = (settings->SaveFlags & ImGuiTableFlags_Sortable) != 0;
if (!save_size && !save_visible && !save_order && !save_sort)
continue;
buf->reserve(buf->size() + 30 + settings->ColumnsCount * 50); // ballpark reserve
buf->appendf("[%s][0x%08X,%d]\n", handler->TypeName, settings->ID, settings->ColumnsCount);
if (settings->RefScale != 0.0f)
buf->appendf("RefScale=%g\n", settings->RefScale);
ImGuiTableColumnSettings* column = settings->GetColumnSettings();
for (int column_n = 0; column_n < settings->ColumnsCount; column_n++, column++)
{
// "Column 0 UserID=0x42AD2D21 Width=100 Visible=1 Order=0 Sort=0v"
bool save_column = column->UserID != 0 || save_size || save_visible || save_order || (save_sort && column->SortOrder != -1);
if (!save_column)
continue;
buf->appendf("Column %-2d", column_n);
if (column->UserID != 0) buf->appendf(" UserID=%08X", column->UserID);
if (save_size && column->IsStretch) buf->appendf(" Weight=%.4f", column->WidthOrWeight);
if (save_size && !column->IsStretch) buf->appendf(" Width=%d", (int)column->WidthOrWeight);
if (save_visible) buf->appendf(" Visible=%d", column->IsEnabled);
if (save_order) buf->appendf(" Order=%d", column->DisplayOrder);
if (save_sort && column->SortOrder != -1) buf->appendf(" Sort=%d%c", column->SortOrder, (column->SortDirection == ImGuiSortDirection_Ascending) ? 'v' : '^');
buf->append("\n");
}
buf->append("\n");
}
}
void ImGui::TableSettingsAddSettingsHandler()
{
ImGuiSettingsHandler ini_handler;
ini_handler.TypeName = "Table";
ini_handler.TypeHash = ImHashStr("Table");
ini_handler.ClearAllFn = TableSettingsHandler_ClearAll;
ini_handler.ReadOpenFn = TableSettingsHandler_ReadOpen;
ini_handler.ReadLineFn = TableSettingsHandler_ReadLine;
ini_handler.ApplyAllFn = TableSettingsHandler_ApplyAll;
ini_handler.WriteAllFn = TableSettingsHandler_WriteAll;
AddSettingsHandler(&ini_handler);
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Garbage Collection
//-------------------------------------------------------------------------
// - TableRemove() [Internal]
// - TableGcCompactTransientBuffers() [Internal]
// - TableGcCompactSettings() [Internal]
//-------------------------------------------------------------------------
// Remove Table (currently only used by TestEngine)
void ImGui::TableRemove(ImGuiTable* table)
{
//IMGUI_DEBUG_PRINT("TableRemove() id=0x%08X\n", table->ID);
ImGuiContext& g = *GImGui;
int table_idx = g.Tables.GetIndex(table);
//memset(table->RawData.Data, 0, table->RawData.size_in_bytes());
//memset(table, 0, sizeof(ImGuiTable));
g.Tables.Remove(table->ID, table);
g.TablesLastTimeActive[table_idx] = -1.0f;
}
// Free up/compact internal Table buffers for when it gets unused
void ImGui::TableGcCompactTransientBuffers(ImGuiTable* table)
{
//IMGUI_DEBUG_PRINT("TableGcCompactTransientBuffers() id=0x%08X\n", table->ID);
ImGuiContext& g = *GImGui;
IM_ASSERT(table->MemoryCompacted == false);
table->SortSpecs.Specs = NULL;
table->SortSpecsMulti.clear();
table->IsSortSpecsDirty = true; // FIXME: shouldn't have to leak into user performing a sort
table->ColumnsNames.clear();
table->MemoryCompacted = true;
for (int n = 0; n < table->ColumnsCount; n++)
table->Columns[n].NameOffset = -1;
g.TablesLastTimeActive[g.Tables.GetIndex(table)] = -1.0f;
}
void ImGui::TableGcCompactTransientBuffers(ImGuiTableTempData* temp_data)
{
temp_data->DrawSplitter.ClearFreeMemory();
temp_data->LastTimeActive = -1.0f;
}
// Compact and remove unused settings data (currently only used by TestEngine)
void ImGui::TableGcCompactSettings()
{
ImGuiContext& g = *GImGui;
int required_memory = 0;
for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
if (settings->ID != 0)
required_memory += (int)TableSettingsCalcChunkSize(settings->ColumnsCount);
if (required_memory == g.SettingsTables.Buf.Size)
return;
ImChunkStream<ImGuiTableSettings> new_chunk_stream;
new_chunk_stream.Buf.reserve(required_memory);
for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
if (settings->ID != 0)
memcpy(new_chunk_stream.alloc_chunk(TableSettingsCalcChunkSize(settings->ColumnsCount)), settings, TableSettingsCalcChunkSize(settings->ColumnsCount));
g.SettingsTables.swap(new_chunk_stream);
}
//-------------------------------------------------------------------------
// [SECTION] Tables: Debugging
//-------------------------------------------------------------------------
// - DebugNodeTable() [Internal]
//-------------------------------------------------------------------------
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
static const char* DebugNodeTableGetSizingPolicyDesc(ImGuiTableFlags sizing_policy)
{
sizing_policy &= ImGuiTableFlags_SizingMask_;
if (sizing_policy == ImGuiTableFlags_SizingFixedFit) { return "FixedFit"; }
if (sizing_policy == ImGuiTableFlags_SizingFixedSame) { return "FixedSame"; }
if (sizing_policy == ImGuiTableFlags_SizingStretchProp) { return "StretchProp"; }
if (sizing_policy == ImGuiTableFlags_SizingStretchSame) { return "StretchSame"; }
return "N/A";
}
void ImGui::DebugNodeTable(ImGuiTable* table)
{
char buf[512];
char* p = buf;
const char* buf_end = buf + IM_ARRAYSIZE(buf);
const bool is_active = (table->LastFrameActive >= ImGui::GetFrameCount() - 2); // Note that fully clipped early out scrolling tables will appear as inactive here.
ImFormatString(p, buf_end - p, "Table 0x%08X (%d columns, in '%s')%s", table->ID, table->ColumnsCount, table->OuterWindow->Name, is_active ? "" : " *Inactive*");
if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
bool open = TreeNode(table, "%s", buf);
if (!is_active) { PopStyleColor(); }
if (IsItemHovered())
GetForegroundDrawList()->AddRect(table->OuterRect.Min, table->OuterRect.Max, IM_COL32(255, 255, 0, 255));
if (IsItemVisible() && table->HoveredColumnBody != -1)
GetForegroundDrawList()->AddRect(GetItemRectMin(), GetItemRectMax(), IM_COL32(255, 255, 0, 255));
if (!open)
return;
if (table->InstanceCurrent > 0)
ImGui::Text("** %d instances of same table! Some data below will refer to last instance.", table->InstanceCurrent + 1);
bool clear_settings = SmallButton("Clear settings");
BulletText("OuterRect: Pos: (%.1f,%.1f) Size: (%.1f,%.1f) Sizing: '%s'", table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.GetWidth(), table->OuterRect.GetHeight(), DebugNodeTableGetSizingPolicyDesc(table->Flags));
BulletText("ColumnsGivenWidth: %.1f, ColumnsAutoFitWidth: %.1f, InnerWidth: %.1f%s", table->ColumnsGivenWidth, table->ColumnsAutoFitWidth, table->InnerWidth, table->InnerWidth == 0.0f ? " (auto)" : "");
BulletText("CellPaddingX: %.1f, CellSpacingX: %.1f/%.1f, OuterPaddingX: %.1f", table->CellPaddingX, table->CellSpacingX1, table->CellSpacingX2, table->OuterPaddingX);
BulletText("HoveredColumnBody: %d, HoveredColumnBorder: %d", table->HoveredColumnBody, table->HoveredColumnBorder);
BulletText("ResizedColumn: %d, ReorderColumn: %d, HeldHeaderColumn: %d", table->ResizedColumn, table->ReorderColumn, table->HeldHeaderColumn);
//BulletText("BgDrawChannels: %d/%d", 0, table->BgDrawChannelUnfrozen);
float sum_weights = 0.0f;
for (int n = 0; n < table->ColumnsCount; n++)
if (table->Columns[n].Flags & ImGuiTableColumnFlags_WidthStretch)
sum_weights += table->Columns[n].StretchWeight;
for (int n = 0; n < table->ColumnsCount; n++)
{
ImGuiTableColumn* column = &table->Columns[n];
const char* name = TableGetColumnName(table, n);
ImFormatString(buf, IM_ARRAYSIZE(buf),
"Column %d order %d '%s': offset %+.2f to %+.2f%s\n"
"Enabled: %d, VisibleX/Y: %d/%d, RequestOutput: %d, SkipItems: %d, DrawChannels: %d,%d\n"
"WidthGiven: %.1f, Request/Auto: %.1f/%.1f, StretchWeight: %.3f (%.1f%%)\n"
"MinX: %.1f, MaxX: %.1f (%+.1f), ClipRect: %.1f to %.1f (+%.1f)\n"
"ContentWidth: %.1f,%.1f, HeadersUsed/Ideal %.1f/%.1f\n"
"Sort: %d%s, UserID: 0x%08X, Flags: 0x%04X: %s%s%s..",
n, column->DisplayOrder, name, column->MinX - table->WorkRect.Min.x, column->MaxX - table->WorkRect.Min.x, (n < table->FreezeColumnsRequest) ? " (Frozen)" : "",
column->IsEnabled, column->IsVisibleX, column->IsVisibleY, column->IsRequestOutput, column->IsSkipItems, column->DrawChannelFrozen, column->DrawChannelUnfrozen,
column->WidthGiven, column->WidthRequest, column->WidthAuto, column->StretchWeight, column->StretchWeight > 0.0f ? (column->StretchWeight / sum_weights) * 100.0f : 0.0f,
column->MinX, column->MaxX, column->MaxX - column->MinX, column->ClipRect.Min.x, column->ClipRect.Max.x, column->ClipRect.Max.x - column->ClipRect.Min.x,
column->ContentMaxXFrozen - column->WorkMinX, column->ContentMaxXUnfrozen - column->WorkMinX, column->ContentMaxXHeadersUsed - column->WorkMinX, column->ContentMaxXHeadersIdeal - column->WorkMinX,
column->SortOrder, (column->SortDirection == ImGuiSortDirection_Ascending) ? " (Asc)" : (column->SortDirection == ImGuiSortDirection_Descending) ? " (Des)" : "", column->UserID, column->Flags,
(column->Flags & ImGuiTableColumnFlags_WidthStretch) ? "WidthStretch " : "",
(column->Flags & ImGuiTableColumnFlags_WidthFixed) ? "WidthFixed " : "",
(column->Flags & ImGuiTableColumnFlags_NoResize) ? "NoResize " : "");
Bullet();
Selectable(buf);
if (IsItemHovered())
{
ImRect r(column->MinX, table->OuterRect.Min.y, column->MaxX, table->OuterRect.Max.y);
GetForegroundDrawList()->AddRect(r.Min, r.Max, IM_COL32(255, 255, 0, 255));
}
}
if (ImGuiTableSettings* settings = TableGetBoundSettings(table))
DebugNodeTableSettings(settings);
if (clear_settings)
table->IsResetAllRequest = true;
TreePop();
}
void ImGui::DebugNodeTableSettings(ImGuiTableSettings* settings)
{
if (!TreeNode((void*)(intptr_t)settings->ID, "Settings 0x%08X (%d columns)", settings->ID, settings->ColumnsCount))
return;
BulletText("SaveFlags: 0x%08X", settings->SaveFlags);
BulletText("ColumnsCount: %d (max %d)", settings->ColumnsCount, settings->ColumnsCountMax);
for (int n = 0; n < settings->ColumnsCount; n++)
{
ImGuiTableColumnSettings* column_settings = &settings->GetColumnSettings()[n];
ImGuiSortDirection sort_dir = (column_settings->SortOrder != -1) ? (ImGuiSortDirection)column_settings->SortDirection : ImGuiSortDirection_None;
BulletText("Column %d Order %d SortOrder %d %s Vis %d %s %7.3f UserID 0x%08X",
n, column_settings->DisplayOrder, column_settings->SortOrder,
(sort_dir == ImGuiSortDirection_Ascending) ? "Asc" : (sort_dir == ImGuiSortDirection_Descending) ? "Des" : "---",
column_settings->IsEnabled, column_settings->IsStretch ? "Weight" : "Width ", column_settings->WidthOrWeight, column_settings->UserID);
}
TreePop();
}
#else // #ifndef IMGUI_DISABLE_DEBUG_TOOLS
void ImGui::DebugNodeTable(ImGuiTable*) {}
void ImGui::DebugNodeTableSettings(ImGuiTableSettings*) {}
#endif
//-------------------------------------------------------------------------
// [SECTION] Columns, BeginColumns, EndColumns, etc.
// (This is a legacy API, prefer using BeginTable/EndTable!)
//-------------------------------------------------------------------------
// FIXME: sizing is lossy when columns width is very small (default width may turn negative etc.)
//-------------------------------------------------------------------------
// - SetWindowClipRectBeforeSetChannel() [Internal]
// - GetColumnIndex()
// - GetColumnsCount()
// - GetColumnOffset()
// - GetColumnWidth()
// - SetColumnOffset()
// - SetColumnWidth()
// - PushColumnClipRect() [Internal]
// - PushColumnsBackground() [Internal]
// - PopColumnsBackground() [Internal]
// - FindOrCreateColumns() [Internal]
// - GetColumnsID() [Internal]
// - BeginColumns()
// - NextColumn()
// - EndColumns()
// - Columns()
//-------------------------------------------------------------------------
// [Internal] Small optimization to avoid calls to PopClipRect/SetCurrentChannel/PushClipRect in sequences,
// they would meddle many times with the underlying ImDrawCmd.
// Instead, we do a preemptive overwrite of clipping rectangle _without_ altering the command-buffer and let
// the subsequent single call to SetCurrentChannel() does it things once.
void ImGui::SetWindowClipRectBeforeSetChannel(ImGuiWindow* window, const ImRect& clip_rect)
{
ImVec4 clip_rect_vec4 = clip_rect.ToVec4();
window->ClipRect = clip_rect;
window->DrawList->_CmdHeader.ClipRect = clip_rect_vec4;
window->DrawList->_ClipRectStack.Data[window->DrawList->_ClipRectStack.Size - 1] = clip_rect_vec4;
}
int ImGui::GetColumnIndex()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CurrentColumns ? window->DC.CurrentColumns->Current : 0;
}
int ImGui::GetColumnsCount()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CurrentColumns ? window->DC.CurrentColumns->Count : 1;
}
float ImGui::GetColumnOffsetFromNorm(const ImGuiOldColumns* columns, float offset_norm)
{
return offset_norm * (columns->OffMaxX - columns->OffMinX);
}
float ImGui::GetColumnNormFromOffset(const ImGuiOldColumns* columns, float offset)
{
return offset / (columns->OffMaxX - columns->OffMinX);
}
static const float COLUMNS_HIT_RECT_HALF_WIDTH = 4.0f;
static float GetDraggedColumnOffset(ImGuiOldColumns* columns, int column_index)
{
// Active (dragged) column always follow mouse. The reason we need this is that dragging a column to the right edge of an auto-resizing
// window creates a feedback loop because we store normalized positions. So while dragging we enforce absolute positioning.
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(column_index > 0); // We are not supposed to drag column 0.
IM_ASSERT(g.ActiveId == columns->ID + ImGuiID(column_index));
float x = g.IO.MousePos.x - g.ActiveIdClickOffset.x + COLUMNS_HIT_RECT_HALF_WIDTH - window->Pos.x;
x = ImMax(x, ImGui::GetColumnOffset(column_index - 1) + g.Style.ColumnsMinSpacing);
if ((columns->Flags & ImGuiOldColumnFlags_NoPreserveWidths))
x = ImMin(x, ImGui::GetColumnOffset(column_index + 1) - g.Style.ColumnsMinSpacing);
return x;
}
float ImGui::GetColumnOffset(int column_index)
{
ImGuiWindow* window = GetCurrentWindowRead();
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (columns == NULL)
return 0.0f;
if (column_index < 0)
column_index = columns->Current;
IM_ASSERT(column_index < columns->Columns.Size);
const float t = columns->Columns[column_index].OffsetNorm;
const float x_offset = ImLerp(columns->OffMinX, columns->OffMaxX, t);
return x_offset;
}
static float GetColumnWidthEx(ImGuiOldColumns* columns, int column_index, bool before_resize = false)
{
if (column_index < 0)
column_index = columns->Current;
float offset_norm;
if (before_resize)
offset_norm = columns->Columns[column_index + 1].OffsetNormBeforeResize - columns->Columns[column_index].OffsetNormBeforeResize;
else
offset_norm = columns->Columns[column_index + 1].OffsetNorm - columns->Columns[column_index].OffsetNorm;
return ImGui::GetColumnOffsetFromNorm(columns, offset_norm);
}
float ImGui::GetColumnWidth(int column_index)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (columns == NULL)
return GetContentRegionAvail().x;
if (column_index < 0)
column_index = columns->Current;
return GetColumnOffsetFromNorm(columns, columns->Columns[column_index + 1].OffsetNorm - columns->Columns[column_index].OffsetNorm);
}
void ImGui::SetColumnOffset(int column_index, float offset)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiOldColumns* columns = window->DC.CurrentColumns;
IM_ASSERT(columns != NULL);
if (column_index < 0)
column_index = columns->Current;
IM_ASSERT(column_index < columns->Columns.Size);
const bool preserve_width = !(columns->Flags & ImGuiOldColumnFlags_NoPreserveWidths) && (column_index < columns->Count - 1);
const float width = preserve_width ? GetColumnWidthEx(columns, column_index, columns->IsBeingResized) : 0.0f;
if (!(columns->Flags & ImGuiOldColumnFlags_NoForceWithinWindow))
offset = ImMin(offset, columns->OffMaxX - g.Style.ColumnsMinSpacing * (columns->Count - column_index));
columns->Columns[column_index].OffsetNorm = GetColumnNormFromOffset(columns, offset - columns->OffMinX);
if (preserve_width)
SetColumnOffset(column_index + 1, offset + ImMax(g.Style.ColumnsMinSpacing, width));
}
void ImGui::SetColumnWidth(int column_index, float width)
{
ImGuiWindow* window = GetCurrentWindowRead();
ImGuiOldColumns* columns = window->DC.CurrentColumns;
IM_ASSERT(columns != NULL);
if (column_index < 0)
column_index = columns->Current;
SetColumnOffset(column_index + 1, GetColumnOffset(column_index) + width);
}
void ImGui::PushColumnClipRect(int column_index)
{
ImGuiWindow* window = GetCurrentWindowRead();
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (column_index < 0)
column_index = columns->Current;
ImGuiOldColumnData* column = &columns->Columns[column_index];
PushClipRect(column->ClipRect.Min, column->ClipRect.Max, false);
}
// Get into the columns background draw command (which is generally the same draw command as before we called BeginColumns)
void ImGui::PushColumnsBackground()
{
ImGuiWindow* window = GetCurrentWindowRead();
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (columns->Count == 1)
return;
// Optimization: avoid SetCurrentChannel() + PushClipRect()
columns->HostBackupClipRect = window->ClipRect;
SetWindowClipRectBeforeSetChannel(window, columns->HostInitialClipRect);
columns->Splitter.SetCurrentChannel(window->DrawList, 0);
}
void ImGui::PopColumnsBackground()
{
ImGuiWindow* window = GetCurrentWindowRead();
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (columns->Count == 1)
return;
// Optimization: avoid PopClipRect() + SetCurrentChannel()
SetWindowClipRectBeforeSetChannel(window, columns->HostBackupClipRect);
columns->Splitter.SetCurrentChannel(window->DrawList, columns->Current + 1);
}
ImGuiOldColumns* ImGui::FindOrCreateColumns(ImGuiWindow* window, ImGuiID id)
{
// We have few columns per window so for now we don't need bother much with turning this into a faster lookup.
for (int n = 0; n < window->ColumnsStorage.Size; n++)
if (window->ColumnsStorage[n].ID == id)
return &window->ColumnsStorage[n];
window->ColumnsStorage.push_back(ImGuiOldColumns());
ImGuiOldColumns* columns = &window->ColumnsStorage.back();
columns->ID = id;
return columns;
}
ImGuiID ImGui::GetColumnsID(const char* str_id, int columns_count)
{
ImGuiWindow* window = GetCurrentWindow();
// Differentiate column ID with an arbitrary prefix for cases where users name their columns set the same as another widget.
// In addition, when an identifier isn't explicitly provided we include the number of columns in the hash to make it uniquer.
PushID(0x11223347 + (str_id ? 0 : columns_count));
ImGuiID id = window->GetID(str_id ? str_id : "columns");
PopID();
return id;
}
void ImGui::BeginColumns(const char* str_id, int columns_count, ImGuiOldColumnFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
IM_ASSERT(columns_count >= 1);
IM_ASSERT(window->DC.CurrentColumns == NULL); // Nested columns are currently not supported
// Acquire storage for the columns set
ImGuiID id = GetColumnsID(str_id, columns_count);
ImGuiOldColumns* columns = FindOrCreateColumns(window, id);
IM_ASSERT(columns->ID == id);
columns->Current = 0;
columns->Count = columns_count;
columns->Flags = flags;
window->DC.CurrentColumns = columns;
columns->HostCursorPosY = window->DC.CursorPos.y;
columns->HostCursorMaxPosX = window->DC.CursorMaxPos.x;
columns->HostInitialClipRect = window->ClipRect;
columns->HostBackupParentWorkRect = window->ParentWorkRect;
window->ParentWorkRect = window->WorkRect;
// Set state for first column
// We aim so that the right-most column will have the same clipping width as other after being clipped by parent ClipRect
const float column_padding = g.Style.ItemSpacing.x;
const float half_clip_extend_x = ImFloor(ImMax(window->WindowPadding.x * 0.5f, window->WindowBorderSize));
const float max_1 = window->WorkRect.Max.x + column_padding - ImMax(column_padding - window->WindowPadding.x, 0.0f);
const float max_2 = window->WorkRect.Max.x + half_clip_extend_x;
columns->OffMinX = window->DC.Indent.x - column_padding + ImMax(column_padding - window->WindowPadding.x, 0.0f);
columns->OffMaxX = ImMax(ImMin(max_1, max_2) - window->Pos.x, columns->OffMinX + 1.0f);
columns->LineMinY = columns->LineMaxY = window->DC.CursorPos.y;
// Clear data if columns count changed
if (columns->Columns.Size != 0 && columns->Columns.Size != columns_count + 1)
columns->Columns.resize(0);
// Initialize default widths
columns->IsFirstFrame = (columns->Columns.Size == 0);
if (columns->Columns.Size == 0)
{
columns->Columns.reserve(columns_count + 1);
for (int n = 0; n < columns_count + 1; n++)
{
ImGuiOldColumnData column;
column.OffsetNorm = n / (float)columns_count;
columns->Columns.push_back(column);
}
}
for (int n = 0; n < columns_count; n++)
{
// Compute clipping rectangle
ImGuiOldColumnData* column = &columns->Columns[n];
float clip_x1 = IM_ROUND(window->Pos.x + GetColumnOffset(n));
float clip_x2 = IM_ROUND(window->Pos.x + GetColumnOffset(n + 1) - 1.0f);
column->ClipRect = ImRect(clip_x1, -FLT_MAX, clip_x2, +FLT_MAX);
column->ClipRect.ClipWithFull(window->ClipRect);
}
if (columns->Count > 1)
{
columns->Splitter.Split(window->DrawList, 1 + columns->Count);
columns->Splitter.SetCurrentChannel(window->DrawList, 1);
PushColumnClipRect(0);
}
// We don't generally store Indent.x inside ColumnsOffset because it may be manipulated by the user.
float offset_0 = GetColumnOffset(columns->Current);
float offset_1 = GetColumnOffset(columns->Current + 1);
float width = offset_1 - offset_0;
PushItemWidth(width * 0.65f);
window->DC.ColumnsOffset.x = ImMax(column_padding - window->WindowPadding.x, 0.0f);
window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
window->WorkRect.Max.x = window->Pos.x + offset_1 - column_padding;
}
void ImGui::NextColumn()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems || window->DC.CurrentColumns == NULL)
return;
ImGuiContext& g = *GImGui;
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (columns->Count == 1)
{
window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
IM_ASSERT(columns->Current == 0);
return;
}
// Next column
if (++columns->Current == columns->Count)
columns->Current = 0;
PopItemWidth();
// Optimization: avoid PopClipRect() + SetCurrentChannel() + PushClipRect()
// (which would needlessly attempt to update commands in the wrong channel, then pop or overwrite them),
ImGuiOldColumnData* column = &columns->Columns[columns->Current];
SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
columns->Splitter.SetCurrentChannel(window->DrawList, columns->Current + 1);
const float column_padding = g.Style.ItemSpacing.x;
columns->LineMaxY = ImMax(columns->LineMaxY, window->DC.CursorPos.y);
if (columns->Current > 0)
{
// Columns 1+ ignore IndentX (by canceling it out)
// FIXME-COLUMNS: Unnecessary, could be locked?
window->DC.ColumnsOffset.x = GetColumnOffset(columns->Current) - window->DC.Indent.x + column_padding;
}
else
{
// New row/line: column 0 honor IndentX.
window->DC.ColumnsOffset.x = ImMax(column_padding - window->WindowPadding.x, 0.0f);
window->DC.IsSameLine = false;
columns->LineMinY = columns->LineMaxY;
}
window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
window->DC.CursorPos.y = columns->LineMinY;
window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
window->DC.CurrLineTextBaseOffset = 0.0f;
// FIXME-COLUMNS: Share code with BeginColumns() - move code on columns setup.
float offset_0 = GetColumnOffset(columns->Current);
float offset_1 = GetColumnOffset(columns->Current + 1);
float width = offset_1 - offset_0;
PushItemWidth(width * 0.65f);
window->WorkRect.Max.x = window->Pos.x + offset_1 - column_padding;
}
void ImGui::EndColumns()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
ImGuiOldColumns* columns = window->DC.CurrentColumns;
IM_ASSERT(columns != NULL);
PopItemWidth();
if (columns->Count > 1)
{
PopClipRect();
columns->Splitter.Merge(window->DrawList);
}
const ImGuiOldColumnFlags flags = columns->Flags;
columns->LineMaxY = ImMax(columns->LineMaxY, window->DC.CursorPos.y);
window->DC.CursorPos.y = columns->LineMaxY;
if (!(flags & ImGuiOldColumnFlags_GrowParentContentsSize))
window->DC.CursorMaxPos.x = columns->HostCursorMaxPosX; // Restore cursor max pos, as columns don't grow parent
// Draw columns borders and handle resize
// The IsBeingResized flag ensure we preserve pre-resize columns width so back-and-forth are not lossy
bool is_being_resized = false;
if (!(flags & ImGuiOldColumnFlags_NoBorder) && !window->SkipItems)
{
// We clip Y boundaries CPU side because very long triangles are mishandled by some GPU drivers.
const float y1 = ImMax(columns->HostCursorPosY, window->ClipRect.Min.y);
const float y2 = ImMin(window->DC.CursorPos.y, window->ClipRect.Max.y);
int dragging_column = -1;
for (int n = 1; n < columns->Count; n++)
{
ImGuiOldColumnData* column = &columns->Columns[n];
float x = window->Pos.x + GetColumnOffset(n);
const ImGuiID column_id = columns->ID + ImGuiID(n);
const float column_hit_hw = COLUMNS_HIT_RECT_HALF_WIDTH;
const ImRect column_hit_rect(ImVec2(x - column_hit_hw, y1), ImVec2(x + column_hit_hw, y2));
if (!ItemAdd(column_hit_rect, column_id, NULL, ImGuiItemFlags_NoNav))
continue;
bool hovered = false, held = false;
if (!(flags & ImGuiOldColumnFlags_NoResize))
{
ButtonBehavior(column_hit_rect, column_id, &hovered, &held);
if (hovered || held)
g.MouseCursor = ImGuiMouseCursor_ResizeEW;
if (held && !(column->Flags & ImGuiOldColumnFlags_NoResize))
dragging_column = n;
}
// Draw column
const ImU32 col = GetColorU32(held ? ImGuiCol_SeparatorActive : hovered ? ImGuiCol_SeparatorHovered : ImGuiCol_Separator);
const float xi = IM_FLOOR(x);
window->DrawList->AddLine(ImVec2(xi, y1 + 1.0f), ImVec2(xi, y2), col);
}
// Apply dragging after drawing the column lines, so our rendered lines are in sync with how items were displayed during the frame.
if (dragging_column != -1)
{
if (!columns->IsBeingResized)
for (int n = 0; n < columns->Count + 1; n++)
columns->Columns[n].OffsetNormBeforeResize = columns->Columns[n].OffsetNorm;
columns->IsBeingResized = is_being_resized = true;
float x = GetDraggedColumnOffset(columns, dragging_column);
SetColumnOffset(dragging_column, x);
}
}
columns->IsBeingResized = is_being_resized;
window->WorkRect = window->ParentWorkRect;
window->ParentWorkRect = columns->HostBackupParentWorkRect;
window->DC.CurrentColumns = NULL;
window->DC.ColumnsOffset.x = 0.0f;
window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
}
void ImGui::Columns(int columns_count, const char* id, bool border)
{
ImGuiWindow* window = GetCurrentWindow();
IM_ASSERT(columns_count >= 1);
ImGuiOldColumnFlags flags = (border ? 0 : ImGuiOldColumnFlags_NoBorder);
//flags |= ImGuiOldColumnFlags_NoPreserveWidths; // NB: Legacy behavior
ImGuiOldColumns* columns = window->DC.CurrentColumns;
if (columns != NULL && columns->Count == columns_count && columns->Flags == flags)
return;
if (columns != NULL)
EndColumns();
if (columns_count != 1)
BeginColumns(id, columns_count, flags);
}
//-------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/implot.cpp | // MIT License
// Copyright (c) 2022 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.14
/*
API BREAKING CHANGES
====================
Occasionally introducing changes that are breaking the API. We try to make the breakage minor and easy to fix.
Below is a change-log of API breaking changes only. If you are using one of the functions listed, expect to have to fix some code.
When you are not sure about a old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all implot files.
You can read releases logs https://github.com/epezent/implot/releases for more details.
- 2022/06/19 (0.14) - The signature of ColormapScale has changed to accommodate a new ImPlotColormapScaleFlags parameter
- 2022/06/17 (0.14) - **IMPORTANT** All PlotX functions now take an ImPlotX_Flags `flags` parameter. Where applicable, it is located before the existing `offset` and `stride` parameters.
If you were providing offset and stride values, you will need to update your function call to include a `flags` value. If you fail to do this, you will likely see
unexpected results or crashes without a compiler warning since these three are all default args. We apologize for the inconvenience, but this was a necessary evil.
- PlotBarsH has been removed; use PlotBars + ImPlotBarsFlags_Horizontal instead
- PlotErrorBarsH has been removed; use PlotErrorBars + ImPlotErrorBarsFlags_Horizontal
- PlotHistogram/PlotHistogram2D signatures changed; `cumulative`, `density`, and `outliers` options now specified via ImPlotHistogramFlags
- PlotPieChart signature changed; `normalize` option now specified via ImPlotPieChartFlags
- PlotText signature changes; `vertical` option now specified via `ImPlotTextFlags_Vertical`
- `PlotVLines` and `PlotHLines` replaced with `PlotInfLines` (+ ImPlotInfLinesFlags_Horizontal )
- arguments of ImPlotGetter have been reversed to be consistent with other API callbacks
- SetupAxisScale + ImPlotScale have replaced ImPlotAxisFlags_LogScale and ImPlotAxisFlags_Time flags
- ImPlotFormatters should now return an int indicating the size written
- the signature of ImPlotGetter has been reversed so that void* user_data is the last argument and consistent with other callbacks
- 2021/10/19 (0.13) - MAJOR API OVERHAUL! See #168 and #272
- TRIVIAL RENAME:
- ImPlotLimits -> ImPlotRect
- ImPlotYAxis_ -> ImAxis_
- SetPlotYAxis -> SetAxis
- BeginDragDropTarget -> BeginDragDropTargetPlot
- BeginDragDropSource -> BeginDragDropSourcePlot
- ImPlotFlags_NoMousePos -> ImPlotFlags_NoMouseText
- SetNextPlotLimits -> SetNextAxesLimits
- SetMouseTextLocation -> SetupMouseText
- SIGNATURE MODIFIED:
- PixelsToPlot/PlotToPixels -> added optional X-Axis arg
- GetPlotMousePos -> added optional X-Axis arg
- GetPlotLimits -> added optional X-Axis arg
- GetPlotSelection -> added optional X-Axis arg
- DragLineX/Y/DragPoint -> now takes int id; removed labels (render with Annotation/Tag instead)
- REPLACED:
- IsPlotXAxisHovered/IsPlotXYAxisHovered -> IsAxisHovered(ImAxis)
- BeginDragDropTargetX/BeginDragDropTargetY -> BeginDragDropTargetAxis(ImAxis)
- BeginDragDropSourceX/BeginDragDropSourceY -> BeginDragDropSourceAxis(ImAxis)
- ImPlotCol_XAxis, ImPlotCol_YAxis1, etc. -> ImPlotCol_AxisText (push/pop this around SetupAxis to style individual axes)
- ImPlotCol_XAxisGrid, ImPlotCol_Y1AxisGrid -> ImPlotCol_AxisGrid (push/pop this around SetupAxis to style individual axes)
- SetNextPlotLimitsX/Y -> SetNextAxisLimits(ImAxis)
- LinkNextPlotLimits -> SetNextAxisLinks(ImAxis)
- FitNextPlotAxes -> SetNextAxisToFit(ImAxis)/SetNextAxesToFit
- SetLegendLocation -> SetupLegend
- ImPlotFlags_NoHighlight -> ImPlotLegendFlags_NoHighlight
- ImPlotOrientation -> ImPlotLegendFlags_Horizontal
- Annotate -> Annotation
- REMOVED:
- GetPlotQuery, SetPlotQuery, IsPlotQueried -> use DragRect
- SetNextPlotTicksX, SetNextPlotTicksY -> use SetupAxisTicks
- SetNextPlotFormatX, SetNextPlotFormatY -> use SetupAxisFormat
- AnnotateClamped -> use Annotation(bool clamp = true)
- OBSOLETED:
- BeginPlot (original signature) -> use simplified signature + Setup API
- 2021/07/30 (0.12) - The offset argument of `PlotXG` functions was been removed. Implement offsetting in your getter callback instead.
- 2021/03/08 (0.9) - SetColormap and PushColormap(ImVec4*) were removed. Use AddColormap for custom colormap support. LerpColormap was changed to SampleColormap.
ShowColormapScale was changed to ColormapScale and requires additional arguments.
- 2021/03/07 (0.9) - The signature of ShowColormapScale was modified to accept a ImVec2 size.
- 2021/02/28 (0.9) - BeginLegendDragDropSource was changed to BeginDragDropSourceItem with a number of other drag and drop improvements.
- 2021/01/18 (0.9) - The default behavior for opening context menus was change from double right-click to single right-click. ImPlotInputMap and related functions were moved
to implot_internal.h due to its immaturity.
- 2020/10/16 (0.8) - ImPlotStyleVar_InfoPadding was changed to ImPlotStyleVar_MousePosPadding
- 2020/09/10 (0.8) - The single array versions of PlotLine, PlotScatter, PlotStems, and PlotShaded were given additional arguments for x-scale and x0.
- 2020/09/07 (0.8) - Plotting functions which accept a custom getter function pointer have been post-fixed with a G (e.g. PlotLineG)
- 2020/09/06 (0.7) - Several flags under ImPlotFlags and ImPlotAxisFlags were inverted (e.g. ImPlotFlags_Legend -> ImPlotFlags_NoLegend) so that the default flagset
is simply 0. This more closely matches ImGui's style and makes it easier to enable non-default but commonly used flags (e.g. ImPlotAxisFlags_Time).
- 2020/08/28 (0.5) - ImPlotMarker_ can no longer be combined with bitwise OR, |. This features caused unecessary slow-down, and almost no one used it.
- 2020/08/25 (0.5) - ImPlotAxisFlags_Scientific was removed. Logarithmic axes automatically uses scientific notation.
- 2020/08/17 (0.5) - PlotText was changed so that text is centered horizontally and vertically about the desired point.
- 2020/08/16 (0.5) - An ImPlotContext must be explicitly created and destroyed now with `CreateContext` and `DestroyContext`. Previously, the context was statically initialized in this source file.
- 2020/06/13 (0.4) - The flags `ImPlotAxisFlag_Adaptive` and `ImPlotFlags_Cull` were removed. Both are now done internally by default.
- 2020/06/03 (0.3) - The signature and behavior of PlotPieChart was changed so that data with sum less than 1 can optionally be normalized. The label format can now be specified as well.
- 2020/06/01 (0.3) - SetPalette was changed to `SetColormap` for consistency with other plotting libraries. `RestorePalette` was removed. Use `SetColormap(ImPlotColormap_Default)`.
- 2020/05/31 (0.3) - Plot functions taking custom ImVec2* getters were removed. Use the ImPlotPoint* getter versions instead.
- 2020/05/29 (0.3) - The signature of ImPlotLimits::Contains was changed to take two doubles instead of ImVec2
- 2020/05/16 (0.2) - All plotting functions were reverted to being prefixed with "Plot" to maintain a consistent VerbNoun style. `Plot` was split into `PlotLine`
and `PlotScatter` (however, `PlotLine` can still be used to plot scatter points as `Plot` did before.). `Bar` is not `PlotBars`, to indicate
that multiple bars will be plotted.
- 2020/05/13 (0.2) - `ImMarker` was change to `ImPlotMarker` and `ImAxisFlags` was changed to `ImPlotAxisFlags`.
- 2020/05/11 (0.2) - `ImPlotFlags_Selection` was changed to `ImPlotFlags_BoxSelect`
- 2020/05/11 (0.2) - The namespace ImGui:: was replaced with ImPlot::. As a result, the following additional changes were made:
- Functions that were prefixed or decorated with the word "Plot" have been truncated. E.g., `ImGui::PlotBars` is now just `ImPlot::Bar`.
It should be fairly obvious what was what.
- Some functions have been given names that would have otherwise collided with the ImGui namespace. This has been done to maintain a consistent
style with ImGui. E.g., 'ImGui::PushPlotStyleVar` is now 'ImPlot::PushStyleVar'.
- 2020/05/10 (0.2) - The following function/struct names were changes:
- ImPlotRange -> ImPlotLimits
- GetPlotRange() -> GetPlotLimits()
- SetNextPlotRange -> SetNextPlotLimits
- SetNextPlotRangeX -> SetNextPlotLimitsX
- SetNextPlotRangeY -> SetNextPlotLimitsY
- 2020/05/10 (0.2) - Plot queries are pixel based by default. Query rects that maintain relative plot position have been removed. This was done to support multi-y-axis.
*/
#define IMGUI_DEFINE_MATH_OPERATORS
#include "implot.h"
#include "implot_internal.h"
#include <stdlib.h>
// Support for pre-1.82 versions. Users on 1.82+ can use 0 (default) flags to mean "all corners" but in order to support older versions we are more explicit.
#if (IMGUI_VERSION_NUM < 18102) && !defined(ImDrawFlags_RoundCornersAll)
#define ImDrawFlags_RoundCornersAll ImDrawCornerFlags_All
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wformat-nonliteral" // warning: format string is not a string literal
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wformat-nonliteral" // warning: format not a string literal, format string not checked
#endif
// Global plot context
#ifndef GImPlot
ImPlotContext* GImPlot = NULL;
#endif
//-----------------------------------------------------------------------------
// Struct Implementations
//-----------------------------------------------------------------------------
ImPlotInputMap::ImPlotInputMap() {
ImPlot::MapInputDefault(this);
}
ImPlotStyle::ImPlotStyle() {
LineWeight = 1;
Marker = ImPlotMarker_None;
MarkerSize = 4;
MarkerWeight = 1;
FillAlpha = 1;
ErrorBarSize = 5;
ErrorBarWeight = 1.5f;
DigitalBitHeight = 8;
DigitalBitGap = 4;
PlotBorderSize = 1;
MinorAlpha = 0.25f;
MajorTickLen = ImVec2(10,10);
MinorTickLen = ImVec2(5,5);
MajorTickSize = ImVec2(1,1);
MinorTickSize = ImVec2(1,1);
MajorGridSize = ImVec2(1,1);
MinorGridSize = ImVec2(1,1);
PlotPadding = ImVec2(10,10);
LabelPadding = ImVec2(5,5);
LegendPadding = ImVec2(10,10);
LegendInnerPadding = ImVec2(5,5);
LegendSpacing = ImVec2(5,0);
MousePosPadding = ImVec2(10,10);
AnnotationPadding = ImVec2(2,2);
FitPadding = ImVec2(0,0);
PlotDefaultSize = ImVec2(400,300);
PlotMinSize = ImVec2(200,150);
ImPlot::StyleColorsAuto(this);
Colormap = ImPlotColormap_Deep;
UseLocalTime = false;
Use24HourClock = false;
UseISO8601 = false;
}
//-----------------------------------------------------------------------------
// Style
//-----------------------------------------------------------------------------
namespace ImPlot {
const char* GetStyleColorName(ImPlotCol col) {
static const char* col_names[ImPlotCol_COUNT] = {
"Line",
"Fill",
"MarkerOutline",
"MarkerFill",
"ErrorBar",
"FrameBg",
"PlotBg",
"PlotBorder",
"LegendBg",
"LegendBorder",
"LegendText",
"TitleText",
"InlayText",
"AxisText",
"AxisGrid",
"AxisTick",
"AxisBg",
"AxisBgHovered",
"AxisBgActive",
"Selection",
"Crosshairs"
};
return col_names[col];
}
const char* GetMarkerName(ImPlotMarker marker) {
switch (marker) {
case ImPlotMarker_None: return "None";
case ImPlotMarker_Circle: return "Circle";
case ImPlotMarker_Square: return "Square";
case ImPlotMarker_Diamond: return "Diamond";
case ImPlotMarker_Up: return "Up";
case ImPlotMarker_Down: return "Down";
case ImPlotMarker_Left: return "Left";
case ImPlotMarker_Right: return "Right";
case ImPlotMarker_Cross: return "Cross";
case ImPlotMarker_Plus: return "Plus";
case ImPlotMarker_Asterisk: return "Asterisk";
default: return "";
}
}
ImVec4 GetAutoColor(ImPlotCol idx) {
ImVec4 col(0,0,0,1);
switch(idx) {
case ImPlotCol_Line: return col; // these are plot dependent!
case ImPlotCol_Fill: return col; // these are plot dependent!
case ImPlotCol_MarkerOutline: return col; // these are plot dependent!
case ImPlotCol_MarkerFill: return col; // these are plot dependent!
case ImPlotCol_ErrorBar: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_FrameBg: return ImGui::GetStyleColorVec4(ImGuiCol_FrameBg);
case ImPlotCol_PlotBg: return ImGui::GetStyleColorVec4(ImGuiCol_WindowBg);
case ImPlotCol_PlotBorder: return ImGui::GetStyleColorVec4(ImGuiCol_Border);
case ImPlotCol_LegendBg: return ImGui::GetStyleColorVec4(ImGuiCol_PopupBg);
case ImPlotCol_LegendBorder: return GetStyleColorVec4(ImPlotCol_PlotBorder);
case ImPlotCol_LegendText: return GetStyleColorVec4(ImPlotCol_InlayText);
case ImPlotCol_TitleText: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_InlayText: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_AxisText: return ImGui::GetStyleColorVec4(ImGuiCol_Text);
case ImPlotCol_AxisGrid: return GetStyleColorVec4(ImPlotCol_AxisText) * ImVec4(1,1,1,0.25f);
case ImPlotCol_AxisTick: return GetStyleColorVec4(ImPlotCol_AxisGrid);
case ImPlotCol_AxisBg: return ImVec4(0,0,0,0);
case ImPlotCol_AxisBgHovered: return ImGui::GetStyleColorVec4(ImGuiCol_ButtonHovered);
case ImPlotCol_AxisBgActive: return ImGui::GetStyleColorVec4(ImGuiCol_ButtonActive);
case ImPlotCol_Selection: return ImVec4(1,1,0,1);
case ImPlotCol_Crosshairs: return GetStyleColorVec4(ImPlotCol_PlotBorder);
default: return col;
}
}
struct ImPlotStyleVarInfo {
ImGuiDataType Type;
ImU32 Count;
ImU32 Offset;
void* GetVarPtr(ImPlotStyle* style) const { return (void*)((unsigned char*)style + Offset); }
};
static const ImPlotStyleVarInfo GPlotStyleVarInfo[] =
{
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, LineWeight) }, // ImPlotStyleVar_LineWeight
{ ImGuiDataType_S32, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, Marker) }, // ImPlotStyleVar_Marker
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MarkerSize) }, // ImPlotStyleVar_MarkerSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MarkerWeight) }, // ImPlotStyleVar_MarkerWeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, FillAlpha) }, // ImPlotStyleVar_FillAlpha
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, ErrorBarSize) }, // ImPlotStyleVar_ErrorBarSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, ErrorBarWeight) }, // ImPlotStyleVar_ErrorBarWeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, DigitalBitHeight) }, // ImPlotStyleVar_DigitalBitHeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, DigitalBitGap) }, // ImPlotStyleVar_DigitalBitGap
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotBorderSize) }, // ImPlotStyleVar_PlotBorderSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorAlpha) }, // ImPlotStyleVar_MinorAlpha
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MajorTickLen) }, // ImPlotStyleVar_MajorTickLen
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorTickLen) }, // ImPlotStyleVar_MinorTickLen
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MajorTickSize) }, // ImPlotStyleVar_MajorTickSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorTickSize) }, // ImPlotStyleVar_MinorTickSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MajorGridSize) }, // ImPlotStyleVar_MajorGridSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MinorGridSize) }, // ImPlotStyleVar_MinorGridSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotPadding) }, // ImPlotStyleVar_PlotPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LabelPadding) }, // ImPlotStyleVar_LabelPaddine
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LegendPadding) }, // ImPlotStyleVar_LegendPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LegendInnerPadding) }, // ImPlotStyleVar_LegendInnerPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, LegendSpacing) }, // ImPlotStyleVar_LegendSpacing
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, MousePosPadding) }, // ImPlotStyleVar_MousePosPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, AnnotationPadding) }, // ImPlotStyleVar_AnnotationPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, FitPadding) }, // ImPlotStyleVar_FitPadding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotDefaultSize) }, // ImPlotStyleVar_PlotDefaultSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImPlotStyle, PlotMinSize) } // ImPlotStyleVar_PlotMinSize
};
static const ImPlotStyleVarInfo* GetPlotStyleVarInfo(ImPlotStyleVar idx) {
IM_ASSERT(idx >= 0 && idx < ImPlotStyleVar_COUNT);
IM_ASSERT(IM_ARRAYSIZE(GPlotStyleVarInfo) == ImPlotStyleVar_COUNT);
return &GPlotStyleVarInfo[idx];
}
//-----------------------------------------------------------------------------
// Generic Helpers
//-----------------------------------------------------------------------------
void AddTextVertical(ImDrawList *DrawList, ImVec2 pos, ImU32 col, const char *text_begin, const char* text_end) {
// the code below is based loosely on ImFont::RenderText
if (!text_end)
text_end = text_begin + strlen(text_begin);
ImGuiContext& g = *GImGui;
ImFont* font = g.Font;
// Align to be pixel perfect
pos.x = IM_FLOOR(pos.x);
pos.y = IM_FLOOR(pos.y);
const float scale = g.FontSize / font->FontSize;
const char* s = text_begin;
int chars_exp = (int)(text_end - s);
int chars_rnd = 0;
const int vtx_count_max = chars_exp * 4;
const int idx_count_max = chars_exp * 6;
DrawList->PrimReserve(idx_count_max, vtx_count_max);
while (s < text_end) {
unsigned int c = (unsigned int)*s;
if (c < 0x80) {
s += 1;
}
else {
s += ImTextCharFromUtf8(&c, s, text_end);
if (c == 0) // Malformed UTF-8?
break;
}
const ImFontGlyph * glyph = font->FindGlyph((ImWchar)c);
if (glyph == NULL) {
continue;
}
DrawList->PrimQuadUV(pos + ImVec2(glyph->Y0, -glyph->X0) * scale, pos + ImVec2(glyph->Y0, -glyph->X1) * scale,
pos + ImVec2(glyph->Y1, -glyph->X1) * scale, pos + ImVec2(glyph->Y1, -glyph->X0) * scale,
ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V0),
ImVec2(glyph->U1, glyph->V1), ImVec2(glyph->U0, glyph->V1),
col);
pos.y -= glyph->AdvanceX * scale;
chars_rnd++;
}
// Give back unused vertices
int chars_skp = chars_exp-chars_rnd;
DrawList->PrimUnreserve(chars_skp*6, chars_skp*4);
}
void AddTextCentered(ImDrawList* DrawList, ImVec2 top_center, ImU32 col, const char* text_begin, const char* text_end) {
float txt_ht = ImGui::GetTextLineHeight();
const char* title_end = ImGui::FindRenderedTextEnd(text_begin, text_end);
ImVec2 text_size;
float y = 0;
while (const char* tmp = (const char*)memchr(text_begin, '\n', title_end-text_begin)) {
text_size = ImGui::CalcTextSize(text_begin,tmp,true);
DrawList->AddText(ImVec2(top_center.x - text_size.x * 0.5f, top_center.y+y),col,text_begin,tmp);
text_begin = tmp + 1;
y += txt_ht;
}
text_size = ImGui::CalcTextSize(text_begin,title_end,true);
DrawList->AddText(ImVec2(top_center.x - text_size.x * 0.5f, top_center.y+y),col,text_begin,title_end);
}
double NiceNum(double x, bool round) {
double f;
double nf;
int expv = (int)floor(ImLog10(x));
f = x / ImPow(10.0, (double)expv);
if (round)
if (f < 1.5)
nf = 1;
else if (f < 3)
nf = 2;
else if (f < 7)
nf = 5;
else
nf = 10;
else if (f <= 1)
nf = 1;
else if (f <= 2)
nf = 2;
else if (f <= 5)
nf = 5;
else
nf = 10;
return nf * ImPow(10.0, expv);
}
//-----------------------------------------------------------------------------
// Context Utils
//-----------------------------------------------------------------------------
void SetImGuiContext(ImGuiContext* ctx) {
ImGui::SetCurrentContext(ctx);
}
ImPlotContext* CreateContext() {
ImPlotContext* ctx = IM_NEW(ImPlotContext)();
Initialize(ctx);
if (GImPlot == NULL)
SetCurrentContext(ctx);
return ctx;
}
void DestroyContext(ImPlotContext* ctx) {
if (ctx == NULL)
ctx = GImPlot;
if (GImPlot == ctx)
SetCurrentContext(NULL);
IM_DELETE(ctx);
}
ImPlotContext* GetCurrentContext() {
return GImPlot;
}
void SetCurrentContext(ImPlotContext* ctx) {
GImPlot = ctx;
}
#define IMPLOT_APPEND_CMAP(name, qual) ctx->ColormapData.Append(#name, name, sizeof(name)/sizeof(ImU32), qual)
#define IM_RGB(r,g,b) IM_COL32(r,g,b,255)
void Initialize(ImPlotContext* ctx) {
ResetCtxForNextPlot(ctx);
ResetCtxForNextAlignedPlots(ctx);
ResetCtxForNextSubplot(ctx);
const ImU32 Deep[] = {4289753676, 4283598045, 4285048917, 4283584196, 4289950337, 4284512403, 4291005402, 4287401100, 4285839820, 4291671396 };
const ImU32 Dark[] = {4280031972, 4290281015, 4283084621, 4288892568, 4278222847, 4281597951, 4280833702, 4290740727, 4288256409 };
const ImU32 Pastel[] = {4289639675, 4293119411, 4291161036, 4293184478, 4289124862, 4291624959, 4290631909, 4293712637, 4294111986 };
const ImU32 Paired[] = {4293119554, 4290017311, 4287291314, 4281114675, 4288256763, 4280031971, 4285513725, 4278222847, 4292260554, 4288298346, 4288282623, 4280834481};
const ImU32 Viridis[] = {4283695428, 4285867080, 4287054913, 4287455029, 4287526954, 4287402273, 4286883874, 4285579076, 4283552122, 4280737725, 4280674301 };
const ImU32 Plasma[] = {4287039501, 4288480321, 4289200234, 4288941455, 4287638193, 4286072780, 4284638433, 4283139314, 4281771772, 4280667900, 4280416752 };
const ImU32 Hot[] = {4278190144, 4278190208, 4278190271, 4278190335, 4278206719, 4278223103, 4278239231, 4278255615, 4283826175, 4289396735, 4294967295 };
const ImU32 Cool[] = {4294967040, 4294960666, 4294954035, 4294947661, 4294941030, 4294934656, 4294928025, 4294921651, 4294915020, 4294908646, 4294902015 };
const ImU32 Pink[] = {4278190154, 4282532475, 4284308894, 4285690554, 4286879686, 4287870160, 4288794330, 4289651940, 4291685869, 4293392118, 4294967295 };
const ImU32 Jet[] = {4289331200, 4294901760, 4294923520, 4294945280, 4294967040, 4289396565, 4283826090, 4278255615, 4278233855, 4278212095, 4278190335 };
const ImU32 Twilight[] = {IM_RGB(226,217,226),IM_RGB(166,191,202),IM_RGB(109,144,192),IM_RGB(95,88,176),IM_RGB(83,30,124),IM_RGB(47,20,54),IM_RGB(100,25,75),IM_RGB(159,60,80),IM_RGB(192,117,94),IM_RGB(208,179,158),IM_RGB(226,217,226)};
const ImU32 RdBu[] = {IM_RGB(103,0,31),IM_RGB(178,24,43),IM_RGB(214,96,77),IM_RGB(244,165,130),IM_RGB(253,219,199),IM_RGB(247,247,247),IM_RGB(209,229,240),IM_RGB(146,197,222),IM_RGB(67,147,195),IM_RGB(33,102,172),IM_RGB(5,48,97)};
const ImU32 BrBG[] = {IM_RGB(84,48,5),IM_RGB(140,81,10),IM_RGB(191,129,45),IM_RGB(223,194,125),IM_RGB(246,232,195),IM_RGB(245,245,245),IM_RGB(199,234,229),IM_RGB(128,205,193),IM_RGB(53,151,143),IM_RGB(1,102,94),IM_RGB(0,60,48)};
const ImU32 PiYG[] = {IM_RGB(142,1,82),IM_RGB(197,27,125),IM_RGB(222,119,174),IM_RGB(241,182,218),IM_RGB(253,224,239),IM_RGB(247,247,247),IM_RGB(230,245,208),IM_RGB(184,225,134),IM_RGB(127,188,65),IM_RGB(77,146,33),IM_RGB(39,100,25)};
const ImU32 Spectral[] = {IM_RGB(158,1,66),IM_RGB(213,62,79),IM_RGB(244,109,67),IM_RGB(253,174,97),IM_RGB(254,224,139),IM_RGB(255,255,191),IM_RGB(230,245,152),IM_RGB(171,221,164),IM_RGB(102,194,165),IM_RGB(50,136,189),IM_RGB(94,79,162)};
const ImU32 Greys[] = {IM_COL32_WHITE, IM_COL32_BLACK };
IMPLOT_APPEND_CMAP(Deep, true);
IMPLOT_APPEND_CMAP(Dark, true);
IMPLOT_APPEND_CMAP(Pastel, true);
IMPLOT_APPEND_CMAP(Paired, true);
IMPLOT_APPEND_CMAP(Viridis, false);
IMPLOT_APPEND_CMAP(Plasma, false);
IMPLOT_APPEND_CMAP(Hot, false);
IMPLOT_APPEND_CMAP(Cool, false);
IMPLOT_APPEND_CMAP(Pink, false);
IMPLOT_APPEND_CMAP(Jet, false);
IMPLOT_APPEND_CMAP(Twilight, false);
IMPLOT_APPEND_CMAP(RdBu, false);
IMPLOT_APPEND_CMAP(BrBG, false);
IMPLOT_APPEND_CMAP(PiYG, false);
IMPLOT_APPEND_CMAP(Spectral, false);
IMPLOT_APPEND_CMAP(Greys, false);
}
void ResetCtxForNextPlot(ImPlotContext* ctx) {
// end child window if it was made
if (ctx->ChildWindowMade)
ImGui::EndChild();
ctx->ChildWindowMade = false;
// reset the next plot/item data
ctx->NextPlotData.Reset();
ctx->NextItemData.Reset();
// reset labels
ctx->Annotations.Reset();
ctx->Tags.Reset();
// reset extents/fit
ctx->OpenContextThisFrame = false;
// reset digital plot items count
ctx->DigitalPlotItemCnt = 0;
ctx->DigitalPlotOffset = 0;
// nullify plot
ctx->CurrentPlot = NULL;
ctx->CurrentItem = NULL;
ctx->PreviousItem = NULL;
}
void ResetCtxForNextAlignedPlots(ImPlotContext* ctx) {
ctx->CurrentAlignmentH = NULL;
ctx->CurrentAlignmentV = NULL;
}
void ResetCtxForNextSubplot(ImPlotContext* ctx) {
ctx->CurrentSubplot = NULL;
ctx->CurrentAlignmentH = NULL;
ctx->CurrentAlignmentV = NULL;
}
//-----------------------------------------------------------------------------
// Plot Utils
//-----------------------------------------------------------------------------
ImPlotPlot* GetPlot(const char* title) {
ImGuiWindow* Window = GImGui->CurrentWindow;
const ImGuiID ID = Window->GetID(title);
return GImPlot->Plots.GetByKey(ID);
}
ImPlotPlot* GetCurrentPlot() {
return GImPlot->CurrentPlot;
}
void BustPlotCache() {
GImPlot->Plots.Clear();
GImPlot->Subplots.Clear();
}
//-----------------------------------------------------------------------------
// Legend Utils
//-----------------------------------------------------------------------------
ImVec2 GetLocationPos(const ImRect& outer_rect, const ImVec2& inner_size, ImPlotLocation loc, const ImVec2& pad) {
ImVec2 pos;
if (ImHasFlag(loc, ImPlotLocation_West) && !ImHasFlag(loc, ImPlotLocation_East))
pos.x = outer_rect.Min.x + pad.x;
else if (!ImHasFlag(loc, ImPlotLocation_West) && ImHasFlag(loc, ImPlotLocation_East))
pos.x = outer_rect.Max.x - pad.x - inner_size.x;
else
pos.x = outer_rect.GetCenter().x - inner_size.x * 0.5f;
// legend reference point y
if (ImHasFlag(loc, ImPlotLocation_North) && !ImHasFlag(loc, ImPlotLocation_South))
pos.y = outer_rect.Min.y + pad.y;
else if (!ImHasFlag(loc, ImPlotLocation_North) && ImHasFlag(loc, ImPlotLocation_South))
pos.y = outer_rect.Max.y - pad.y - inner_size.y;
else
pos.y = outer_rect.GetCenter().y - inner_size.y * 0.5f;
pos.x = IM_ROUND(pos.x);
pos.y = IM_ROUND(pos.y);
return pos;
}
ImVec2 CalcLegendSize(ImPlotItemGroup& items, const ImVec2& pad, const ImVec2& spacing, bool vertical) {
// vars
const int nItems = items.GetLegendCount();
const float txt_ht = ImGui::GetTextLineHeight();
const float icon_size = txt_ht;
// get label max width
float max_label_width = 0;
float sum_label_width = 0;
for (int i = 0; i < nItems; ++i) {
const char* label = items.GetLegendLabel(i);
const float label_width = ImGui::CalcTextSize(label, NULL, true).x;
max_label_width = label_width > max_label_width ? label_width : max_label_width;
sum_label_width += label_width;
}
// calc legend size
const ImVec2 legend_size = vertical ?
ImVec2(pad.x * 2 + icon_size + max_label_width, pad.y * 2 + nItems * txt_ht + (nItems - 1) * spacing.y) :
ImVec2(pad.x * 2 + icon_size * nItems + sum_label_width + (nItems - 1) * spacing.x, pad.y * 2 + txt_ht);
return legend_size;
}
int LegendSortingComp(const void* _a, const void* _b) {
ImPlotItemGroup* items = GImPlot->SortItems;
const int a = *(const int*)_a;
const int b = *(const int*)_b;
const char* label_a = items->GetLegendLabel(a);
const char* label_b = items->GetLegendLabel(b);
return strcmp(label_a,label_b);
}
bool ShowLegendEntries(ImPlotItemGroup& items, const ImRect& legend_bb, bool hovered, const ImVec2& pad, const ImVec2& spacing, bool vertical, ImDrawList& DrawList) {
// vars
const float txt_ht = ImGui::GetTextLineHeight();
const float icon_size = txt_ht;
const float icon_shrink = 2;
ImU32 col_txt = GetStyleColorU32(ImPlotCol_LegendText);
ImU32 col_txt_dis = ImAlphaU32(col_txt, 0.25f);
// render each legend item
float sum_label_width = 0;
bool any_item_hovered = false;
const int num_items = items.GetLegendCount();
if (num_items < 1)
return hovered;
// build render order
ImVector<int>& indices = GImPlot->TempInt1;
indices.resize(num_items);
for (int i = 0; i < num_items; ++i)
indices[i] = i;
if (ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_Sort) && num_items > 1) {
GImPlot->SortItems = &items;
qsort(indices.Data, num_items, sizeof(int), LegendSortingComp);
}
// render
for (int i = 0; i < num_items; ++i) {
const int idx = indices[i];
ImPlotItem* item = items.GetLegendItem(idx);
const char* label = items.GetLegendLabel(idx);
const float label_width = ImGui::CalcTextSize(label, NULL, true).x;
const ImVec2 top_left = vertical ?
legend_bb.Min + pad + ImVec2(0, i * (txt_ht + spacing.y)) :
legend_bb.Min + pad + ImVec2(i * (icon_size + spacing.x) + sum_label_width, 0);
sum_label_width += label_width;
ImRect icon_bb;
icon_bb.Min = top_left + ImVec2(icon_shrink,icon_shrink);
icon_bb.Max = top_left + ImVec2(icon_size - icon_shrink, icon_size - icon_shrink);
ImRect label_bb;
label_bb.Min = top_left;
label_bb.Max = top_left + ImVec2(label_width + icon_size, icon_size);
ImU32 col_txt_hl;
ImU32 col_item = ImAlphaU32(item->Color,1);
ImRect button_bb(icon_bb.Min, label_bb.Max);
ImGui::KeepAliveID(item->ID);
bool item_hov = false;
bool item_hld = false;
bool item_clk = ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_NoButtons)
? false
: ImGui::ButtonBehavior(button_bb, item->ID, &item_hov, &item_hld);
if (item_clk)
item->Show = !item->Show;
const bool can_hover = (item_hov)
&& (!ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_NoHighlightItem)
|| !ImHasFlag(items.Legend.Flags, ImPlotLegendFlags_NoHighlightAxis));
if (can_hover) {
item->LegendHoverRect.Min = icon_bb.Min;
item->LegendHoverRect.Max = label_bb.Max;
item->LegendHovered = true;
col_txt_hl = ImMixU32(col_txt, col_item, 64);
any_item_hovered = true;
}
else {
col_txt_hl = ImGui::GetColorU32(col_txt);
}
ImU32 col_icon;
if (item_hld)
col_icon = item->Show ? ImAlphaU32(col_item,0.5f) : ImGui::GetColorU32(ImGuiCol_TextDisabled, 0.5f);
else if (item_hov)
col_icon = item->Show ? ImAlphaU32(col_item,0.75f) : ImGui::GetColorU32(ImGuiCol_TextDisabled, 0.75f);
else
col_icon = item->Show ? col_item : col_txt_dis;
DrawList.AddRectFilled(icon_bb.Min, icon_bb.Max, col_icon);
const char* text_display_end = ImGui::FindRenderedTextEnd(label, NULL);
if (label != text_display_end)
DrawList.AddText(top_left + ImVec2(icon_size, 0), item->Show ? col_txt_hl : col_txt_dis, label, text_display_end);
}
return hovered && !any_item_hovered;
}
//-----------------------------------------------------------------------------
// Locators
//-----------------------------------------------------------------------------
static const float TICK_FILL_X = 0.8f;
static const float TICK_FILL_Y = 1.0f;
void Locator_Default(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
if (range.Min == range.Max)
return;
const int nMinor = 10;
const int nMajor = ImMax(2, (int)IM_ROUND(pixels / (vertical ? 300.0f : 400.0f)));
const double nice_range = NiceNum(range.Size() * 0.99, false);
const double interval = NiceNum(nice_range / (nMajor - 1), true);
const double graphmin = floor(range.Min / interval) * interval;
const double graphmax = ceil(range.Max / interval) * interval;
bool first_major_set = false;
int first_major_idx = 0;
const int idx0 = ticker.TickCount(); // ticker may have user custom ticks
ImVec2 total_size(0,0);
for (double major = graphmin; major < graphmax + 0.5 * interval; major += interval) {
// is this zero? combat zero formatting issues
if (major-interval < 0 && major+interval > 0)
major = 0;
if (range.Contains(major)) {
if (!first_major_set) {
first_major_idx = ticker.TickCount();
first_major_set = true;
}
total_size += ticker.AddTick(major, true, 0, true, formatter, formatter_data).LabelSize;
}
for (int i = 1; i < nMinor; ++i) {
double minor = major + i * interval / nMinor;
if (range.Contains(minor)) {
total_size += ticker.AddTick(minor, false, 0, true, formatter, formatter_data).LabelSize;
}
}
}
// prune if necessary
if ((!vertical && total_size.x > pixels*TICK_FILL_X) || (vertical && total_size.y > pixels*TICK_FILL_Y)) {
for (int i = first_major_idx-1; i >= idx0; i -= 2)
ticker.Ticks[i].ShowLabel = false;
for (int i = first_major_idx+1; i < ticker.TickCount(); i += 2)
ticker.Ticks[i].ShowLabel = false;
}
}
bool CalcLogarithmicExponents(const ImPlotRange& range, float pix, bool vertical, int& exp_min, int& exp_max, int& exp_step) {
if (range.Min * range.Max > 0) {
const int nMajor = vertical ? ImMax(2, (int)IM_ROUND(pix * 0.02f)) : ImMax(2, (int)IM_ROUND(pix * 0.01f)); // TODO: magic numbers
double log_min = ImLog10(ImAbs(range.Min));
double log_max = ImLog10(ImAbs(range.Max));
double log_a = ImMin(log_min,log_max);
double log_b = ImMax(log_min,log_max);
exp_step = ImMax(1,(int)(log_b - log_a) / nMajor);
exp_min = (int)log_a;
exp_max = (int)log_b;
if (exp_step != 1) {
while(exp_step % 3 != 0) exp_step++; // make step size multiple of three
while(exp_min % exp_step != 0) exp_min--; // decrease exp_min until exp_min + N * exp_step will be 0
}
return true;
}
return false;
}
void AddTicksLogarithmic(const ImPlotRange& range, int exp_min, int exp_max, int exp_step, ImPlotTicker& ticker, ImPlotFormatter formatter, void* data) {
const double sign = ImSign(range.Max);
for (int e = exp_min - exp_step; e < (exp_max + exp_step); e += exp_step) {
double major1 = sign*ImPow(10, (double)(e));
double major2 = sign*ImPow(10, (double)(e + 1));
double interval = (major2 - major1) / 9;
if (major1 >= (range.Min - DBL_EPSILON) && major1 <= (range.Max + DBL_EPSILON))
ticker.AddTick(major1, true, 0, true, formatter, data);
for (int j = 0; j < exp_step; ++j) {
major1 = sign*ImPow(10, (double)(e+j));
major2 = sign*ImPow(10, (double)(e+j+1));
interval = (major2 - major1) / 9;
for (int i = 1; i < (9 + (int)(j < (exp_step - 1))); ++i) {
double minor = major1 + i * interval;
if (minor >= (range.Min - DBL_EPSILON) && minor <= (range.Max + DBL_EPSILON))
ticker.AddTick(minor, false, 0, false, formatter, data);
}
}
}
}
void Locator_Log10(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
int exp_min, exp_max, exp_step;
if (CalcLogarithmicExponents(range, pixels, vertical, exp_min, exp_max, exp_step))
AddTicksLogarithmic(range, exp_min, exp_max, exp_step, ticker, formatter, formatter_data);
}
float CalcSymLogPixel(double plt, const ImPlotRange& range, float pixels) {
double scaleToPixels = pixels / range.Size();
double scaleMin = TransformForward_SymLog(range.Min,NULL);
double scaleMax = TransformForward_SymLog(range.Max,NULL);
double s = TransformForward_SymLog(plt, NULL);
double t = (s - scaleMin) / (scaleMax - scaleMin);
plt = range.Min + range.Size() * t;
return (float)(0 + scaleToPixels * (plt - range.Min));
}
void Locator_SymLog(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
if (range.Min >= -1 && range.Max <= 1) {
Locator_Default(ticker, range, pixels, vertical, formatter, formatter_data);
}
else if (range.Min * range.Max < 0) { // cross zero
const float pix_min = 0;
const float pix_max = pixels;
const float pix_p1 = CalcSymLogPixel(1, range, pixels);
const float pix_n1 = CalcSymLogPixel(-1, range, pixels);
int exp_min_p, exp_max_p, exp_step_p;
int exp_min_n, exp_max_n, exp_step_n;
CalcLogarithmicExponents(ImPlotRange(1,range.Max), ImAbs(pix_max-pix_p1),vertical,exp_min_p,exp_max_p,exp_step_p);
CalcLogarithmicExponents(ImPlotRange(range.Min,-1),ImAbs(pix_n1-pix_min),vertical,exp_min_n,exp_max_n,exp_step_n);
int exp_step = ImMax(exp_step_n, exp_step_p);
ticker.AddTick(0,true,0,true,formatter,formatter_data);
AddTicksLogarithmic(ImPlotRange(1,range.Max), exp_min_p,exp_max_p,exp_step,ticker,formatter,formatter_data);
AddTicksLogarithmic(ImPlotRange(range.Min,-1),exp_min_n,exp_max_n,exp_step,ticker,formatter,formatter_data);
}
else {
Locator_Log10(ticker, range, pixels, vertical, formatter, formatter_data);
}
}
void AddTicksCustom(const double* values, const char* const labels[], int n, ImPlotTicker& ticker, ImPlotFormatter formatter, void* data) {
for (int i = 0; i < n; ++i) {
if (labels != NULL)
ticker.AddTick(values[i], false, 0, true, labels[i]);
else
ticker.AddTick(values[i], false, 0, true, formatter, data);
}
}
//-----------------------------------------------------------------------------
// Time Ticks and Utils
//-----------------------------------------------------------------------------
// this may not be thread safe?
static const double TimeUnitSpans[ImPlotTimeUnit_COUNT] = {
0.000001,
0.001,
1,
60,
3600,
86400,
2629800,
31557600
};
inline ImPlotTimeUnit GetUnitForRange(double range) {
static double cutoffs[ImPlotTimeUnit_COUNT] = {0.001, 1, 60, 3600, 86400, 2629800, 31557600, IMPLOT_MAX_TIME};
for (int i = 0; i < ImPlotTimeUnit_COUNT; ++i) {
if (range <= cutoffs[i])
return (ImPlotTimeUnit)i;
}
return ImPlotTimeUnit_Yr;
}
inline int LowerBoundStep(int max_divs, const int* divs, const int* step, int size) {
if (max_divs < divs[0])
return 0;
for (int i = 1; i < size; ++i) {
if (max_divs < divs[i])
return step[i-1];
}
return step[size-1];
}
inline int GetTimeStep(int max_divs, ImPlotTimeUnit unit) {
if (unit == ImPlotTimeUnit_Ms || unit == ImPlotTimeUnit_Us) {
static const int step[] = {500,250,200,100,50,25,20,10,5,2,1};
static const int divs[] = {2,4,5,10,20,40,50,100,200,500,1000};
return LowerBoundStep(max_divs, divs, step, 11);
}
if (unit == ImPlotTimeUnit_S || unit == ImPlotTimeUnit_Min) {
static const int step[] = {30,15,10,5,1};
static const int divs[] = {2,4,6,12,60};
return LowerBoundStep(max_divs, divs, step, 5);
}
else if (unit == ImPlotTimeUnit_Hr) {
static const int step[] = {12,6,3,2,1};
static const int divs[] = {2,4,8,12,24};
return LowerBoundStep(max_divs, divs, step, 5);
}
else if (unit == ImPlotTimeUnit_Day) {
static const int step[] = {14,7,2,1};
static const int divs[] = {2,4,14,28};
return LowerBoundStep(max_divs, divs, step, 4);
}
else if (unit == ImPlotTimeUnit_Mo) {
static const int step[] = {6,3,2,1};
static const int divs[] = {2,4,6,12};
return LowerBoundStep(max_divs, divs, step, 4);
}
return 0;
}
ImPlotTime MkGmtTime(struct tm *ptm) {
ImPlotTime t;
#ifdef _WIN32
t.S = _mkgmtime(ptm);
#else
t.S = timegm(ptm);
#endif
if (t.S < 0)
t.S = 0;
return t;
}
tm* GetGmtTime(const ImPlotTime& t, tm* ptm)
{
#ifdef _WIN32
if (gmtime_s(ptm, &t.S) == 0)
return ptm;
else
return NULL;
#else
return gmtime_r(&t.S, ptm);
#endif
}
ImPlotTime MkLocTime(struct tm *ptm) {
ImPlotTime t;
t.S = mktime(ptm);
if (t.S < 0)
t.S = 0;
return t;
}
tm* GetLocTime(const ImPlotTime& t, tm* ptm) {
#ifdef _WIN32
if (localtime_s(ptm, &t.S) == 0)
return ptm;
else
return NULL;
#else
return localtime_r(&t.S, ptm);
#endif
}
inline ImPlotTime MkTime(struct tm *ptm) {
if (GetStyle().UseLocalTime)
return MkLocTime(ptm);
else
return MkGmtTime(ptm);
}
inline tm* GetTime(const ImPlotTime& t, tm* ptm) {
if (GetStyle().UseLocalTime)
return GetLocTime(t,ptm);
else
return GetGmtTime(t,ptm);
}
ImPlotTime MakeTime(int year, int month, int day, int hour, int min, int sec, int us) {
tm& Tm = GImPlot->Tm;
int yr = year - 1900;
if (yr < 0)
yr = 0;
sec = sec + us / 1000000;
us = us % 1000000;
Tm.tm_sec = sec;
Tm.tm_min = min;
Tm.tm_hour = hour;
Tm.tm_mday = day;
Tm.tm_mon = month;
Tm.tm_year = yr;
ImPlotTime t = MkTime(&Tm);
t.Us = us;
return t;
}
int GetYear(const ImPlotTime& t) {
tm& Tm = GImPlot->Tm;
GetTime(t, &Tm);
return Tm.tm_year + 1900;
}
ImPlotTime AddTime(const ImPlotTime& t, ImPlotTimeUnit unit, int count) {
tm& Tm = GImPlot->Tm;
ImPlotTime t_out = t;
switch(unit) {
case ImPlotTimeUnit_Us: t_out.Us += count; break;
case ImPlotTimeUnit_Ms: t_out.Us += count * 1000; break;
case ImPlotTimeUnit_S: t_out.S += count; break;
case ImPlotTimeUnit_Min: t_out.S += count * 60; break;
case ImPlotTimeUnit_Hr: t_out.S += count * 3600; break;
case ImPlotTimeUnit_Day: t_out.S += count * 86400; break;
case ImPlotTimeUnit_Mo: for (int i = 0; i < abs(count); ++i) {
GetTime(t_out, &Tm);
if (count > 0)
t_out.S += 86400 * GetDaysInMonth(Tm.tm_year + 1900, Tm.tm_mon);
else if (count < 0)
t_out.S -= 86400 * GetDaysInMonth(Tm.tm_year + 1900 - (Tm.tm_mon == 0 ? 1 : 0), Tm.tm_mon == 0 ? 11 : Tm.tm_mon - 1); // NOT WORKING
}
break;
case ImPlotTimeUnit_Yr: for (int i = 0; i < abs(count); ++i) {
if (count > 0)
t_out.S += 86400 * (365 + (int)IsLeapYear(GetYear(t_out)));
else if (count < 0)
t_out.S -= 86400 * (365 + (int)IsLeapYear(GetYear(t_out) - 1));
// this is incorrect if leap year and we are past Feb 28
}
break;
default: break;
}
t_out.RollOver();
return t_out;
}
ImPlotTime FloorTime(const ImPlotTime& t, ImPlotTimeUnit unit) {
GetTime(t, &GImPlot->Tm);
switch (unit) {
case ImPlotTimeUnit_S: return ImPlotTime(t.S, 0);
case ImPlotTimeUnit_Ms: return ImPlotTime(t.S, (t.Us / 1000) * 1000);
case ImPlotTimeUnit_Us: return t;
case ImPlotTimeUnit_Yr: GImPlot->Tm.tm_mon = 0; // fall-through
case ImPlotTimeUnit_Mo: GImPlot->Tm.tm_mday = 1; // fall-through
case ImPlotTimeUnit_Day: GImPlot->Tm.tm_hour = 0; // fall-through
case ImPlotTimeUnit_Hr: GImPlot->Tm.tm_min = 0; // fall-through
case ImPlotTimeUnit_Min: GImPlot->Tm.tm_sec = 0; break;
default: return t;
}
return MkTime(&GImPlot->Tm);
}
ImPlotTime CeilTime(const ImPlotTime& t, ImPlotTimeUnit unit) {
return AddTime(FloorTime(t, unit), unit, 1);
}
ImPlotTime RoundTime(const ImPlotTime& t, ImPlotTimeUnit unit) {
ImPlotTime t1 = FloorTime(t, unit);
ImPlotTime t2 = AddTime(t1,unit,1);
if (t1.S == t2.S)
return t.Us - t1.Us < t2.Us - t.Us ? t1 : t2;
return t.S - t1.S < t2.S - t.S ? t1 : t2;
}
ImPlotTime CombineDateTime(const ImPlotTime& date_part, const ImPlotTime& tod_part) {
tm& Tm = GImPlot->Tm;
GetTime(date_part, &GImPlot->Tm);
int y = Tm.tm_year;
int m = Tm.tm_mon;
int d = Tm.tm_mday;
GetTime(tod_part, &GImPlot->Tm);
Tm.tm_year = y;
Tm.tm_mon = m;
Tm.tm_mday = d;
ImPlotTime t = MkTime(&Tm);
t.Us = tod_part.Us;
return t;
}
// TODO: allow users to define these
static const char* MONTH_NAMES[] = {"January","February","March","April","May","June","July","August","September","October","November","December"};
static const char* WD_ABRVS[] = {"Su","Mo","Tu","We","Th","Fr","Sa"};
static const char* MONTH_ABRVS[] = {"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
int FormatTime(const ImPlotTime& t, char* buffer, int size, ImPlotTimeFmt fmt, bool use_24_hr_clk) {
tm& Tm = GImPlot->Tm;
GetTime(t, &Tm);
const int us = t.Us % 1000;
const int ms = t.Us / 1000;
const int sec = Tm.tm_sec;
const int min = Tm.tm_min;
if (use_24_hr_clk) {
const int hr = Tm.tm_hour;
switch(fmt) {
case ImPlotTimeFmt_Us: return ImFormatString(buffer, size, ".%03d %03d", ms, us);
case ImPlotTimeFmt_SUs: return ImFormatString(buffer, size, ":%02d.%03d %03d", sec, ms, us);
case ImPlotTimeFmt_SMs: return ImFormatString(buffer, size, ":%02d.%03d", sec, ms);
case ImPlotTimeFmt_S: return ImFormatString(buffer, size, ":%02d", sec);
case ImPlotTimeFmt_MinSMs: return ImFormatString(buffer, size, ":%02d:%02d.%03d", min, sec, ms);
case ImPlotTimeFmt_HrMinSMs: return ImFormatString(buffer, size, "%02d:%02d:%02d.%03d", hr, min, sec, ms);
case ImPlotTimeFmt_HrMinS: return ImFormatString(buffer, size, "%02d:%02d:%02d", hr, min, sec);
case ImPlotTimeFmt_HrMin: return ImFormatString(buffer, size, "%02d:%02d", hr, min);
case ImPlotTimeFmt_Hr: return ImFormatString(buffer, size, "%02d:00", hr);
default: return 0;
}
}
else {
const char* ap = Tm.tm_hour < 12 ? "am" : "pm";
const int hr = (Tm.tm_hour == 0 || Tm.tm_hour == 12) ? 12 : Tm.tm_hour % 12;
switch(fmt) {
case ImPlotTimeFmt_Us: return ImFormatString(buffer, size, ".%03d %03d", ms, us);
case ImPlotTimeFmt_SUs: return ImFormatString(buffer, size, ":%02d.%03d %03d", sec, ms, us);
case ImPlotTimeFmt_SMs: return ImFormatString(buffer, size, ":%02d.%03d", sec, ms);
case ImPlotTimeFmt_S: return ImFormatString(buffer, size, ":%02d", sec);
case ImPlotTimeFmt_MinSMs: return ImFormatString(buffer, size, ":%02d:%02d.%03d", min, sec, ms);
case ImPlotTimeFmt_HrMinSMs: return ImFormatString(buffer, size, "%d:%02d:%02d.%03d%s", hr, min, sec, ms, ap);
case ImPlotTimeFmt_HrMinS: return ImFormatString(buffer, size, "%d:%02d:%02d%s", hr, min, sec, ap);
case ImPlotTimeFmt_HrMin: return ImFormatString(buffer, size, "%d:%02d%s", hr, min, ap);
case ImPlotTimeFmt_Hr: return ImFormatString(buffer, size, "%d%s", hr, ap);
default: return 0;
}
}
}
int FormatDate(const ImPlotTime& t, char* buffer, int size, ImPlotDateFmt fmt, bool use_iso_8601) {
tm& Tm = GImPlot->Tm;
GetTime(t, &Tm);
const int day = Tm.tm_mday;
const int mon = Tm.tm_mon + 1;
const int year = Tm.tm_year + 1900;
const int yr = year % 100;
if (use_iso_8601) {
switch (fmt) {
case ImPlotDateFmt_DayMo: return ImFormatString(buffer, size, "--%02d-%02d", mon, day);
case ImPlotDateFmt_DayMoYr: return ImFormatString(buffer, size, "%d-%02d-%02d", year, mon, day);
case ImPlotDateFmt_MoYr: return ImFormatString(buffer, size, "%d-%02d", year, mon);
case ImPlotDateFmt_Mo: return ImFormatString(buffer, size, "--%02d", mon);
case ImPlotDateFmt_Yr: return ImFormatString(buffer, size, "%d", year);
default: return 0;
}
}
else {
switch (fmt) {
case ImPlotDateFmt_DayMo: return ImFormatString(buffer, size, "%d/%d", mon, day);
case ImPlotDateFmt_DayMoYr: return ImFormatString(buffer, size, "%d/%d/%02d", mon, day, yr);
case ImPlotDateFmt_MoYr: return ImFormatString(buffer, size, "%s %d", MONTH_ABRVS[Tm.tm_mon], year);
case ImPlotDateFmt_Mo: return ImFormatString(buffer, size, "%s", MONTH_ABRVS[Tm.tm_mon]);
case ImPlotDateFmt_Yr: return ImFormatString(buffer, size, "%d", year);
default: return 0;
}
}
}
int FormatDateTime(const ImPlotTime& t, char* buffer, int size, ImPlotDateTimeSpec fmt) {
int written = 0;
if (fmt.Date != ImPlotDateFmt_None)
written += FormatDate(t, buffer, size, fmt.Date, fmt.UseISO8601);
if (fmt.Time != ImPlotTimeFmt_None) {
if (fmt.Date != ImPlotDateFmt_None)
buffer[written++] = ' ';
written += FormatTime(t, &buffer[written], size - written, fmt.Time, fmt.Use24HourClock);
}
return written;
}
inline float GetDateTimeWidth(ImPlotDateTimeSpec fmt) {
static const ImPlotTime t_max_width = MakeTime(2888, 12, 22, 12, 58, 58, 888888); // best guess at time that maximizes pixel width
char buffer[32];
FormatDateTime(t_max_width, buffer, 32, fmt);
return ImGui::CalcTextSize(buffer).x;
}
inline bool TimeLabelSame(const char* l1, const char* l2) {
size_t len1 = strlen(l1);
size_t len2 = strlen(l2);
size_t n = len1 < len2 ? len1 : len2;
return strcmp(l1 + len1 - n, l2 + len2 - n) == 0;
}
static const ImPlotDateTimeSpec TimeFormatLevel0[ImPlotTimeUnit_COUNT] = {
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_Us),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_SMs),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_S),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_Hr),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMo, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_Mo, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_Yr, ImPlotTimeFmt_None)
};
static const ImPlotDateTimeSpec TimeFormatLevel1[ImPlotTimeUnit_COUNT] = {
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMinS),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_Yr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_Yr, ImPlotTimeFmt_None)
};
static const ImPlotDateTimeSpec TimeFormatLevel1First[ImPlotTimeUnit_COUNT] = {
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_HrMinS),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_HrMinS),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_Yr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_Yr, ImPlotTimeFmt_None)
};
static const ImPlotDateTimeSpec TimeFormatMouseCursor[ImPlotTimeUnit_COUNT] = {
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_Us),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_SUs),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_SMs),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMinS),
ImPlotDateTimeSpec(ImPlotDateFmt_None, ImPlotTimeFmt_HrMin),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMo, ImPlotTimeFmt_Hr),
ImPlotDateTimeSpec(ImPlotDateFmt_DayMoYr, ImPlotTimeFmt_None),
ImPlotDateTimeSpec(ImPlotDateFmt_MoYr, ImPlotTimeFmt_None)
};
inline ImPlotDateTimeSpec GetDateTimeFmt(const ImPlotDateTimeSpec* ctx, ImPlotTimeUnit idx) {
ImPlotStyle& style = GetStyle();
ImPlotDateTimeSpec fmt = ctx[idx];
fmt.UseISO8601 = style.UseISO8601;
fmt.Use24HourClock = style.Use24HourClock;
return fmt;
}
void Locator_Time(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data) {
IM_ASSERT_USER_ERROR(vertical == false, "Cannot locate Time ticks on vertical axis!");
(void)vertical;
// get units for level 0 and level 1 labels
const ImPlotTimeUnit unit0 = GetUnitForRange(range.Size() / (pixels / 100)); // level = 0 (top)
const ImPlotTimeUnit unit1 = ImClamp(unit0 + 1, 0, ImPlotTimeUnit_COUNT-1); // level = 1 (bottom)
// get time format specs
const ImPlotDateTimeSpec fmt0 = GetDateTimeFmt(TimeFormatLevel0, unit0);
const ImPlotDateTimeSpec fmt1 = GetDateTimeFmt(TimeFormatLevel1, unit1);
const ImPlotDateTimeSpec fmtf = GetDateTimeFmt(TimeFormatLevel1First, unit1);
// min max times
const ImPlotTime t_min = ImPlotTime::FromDouble(range.Min);
const ImPlotTime t_max = ImPlotTime::FromDouble(range.Max);
// maximum allowable density of labels
const float max_density = 0.5f;
// book keeping
int last_major_offset = -1;
// formatter data
Formatter_Time_Data ftd;
ftd.UserFormatter = formatter;
ftd.UserFormatterData = formatter_data;
if (unit0 != ImPlotTimeUnit_Yr) {
// pixels per major (level 1) division
const float pix_per_major_div = pixels / (float)(range.Size() / TimeUnitSpans[unit1]);
// nominal pixels taken up by labels
const float fmt0_width = GetDateTimeWidth(fmt0);
const float fmt1_width = GetDateTimeWidth(fmt1);
const float fmtf_width = GetDateTimeWidth(fmtf);
// the maximum number of minor (level 0) labels that can fit between major (level 1) divisions
const int minor_per_major = (int)(max_density * pix_per_major_div / fmt0_width);
// the minor step size (level 0)
const int step = GetTimeStep(minor_per_major, unit0);
// generate ticks
ImPlotTime t1 = FloorTime(ImPlotTime::FromDouble(range.Min), unit1);
while (t1 < t_max) {
// get next major
const ImPlotTime t2 = AddTime(t1, unit1, 1);
// add major tick
if (t1 >= t_min && t1 <= t_max) {
// minor level 0 tick
ftd.Time = t1; ftd.Spec = fmt0;
ticker.AddTick(t1.ToDouble(), true, 0, true, Formatter_Time, &ftd);
// major level 1 tick
ftd.Time = t1; ftd.Spec = last_major_offset < 0 ? fmtf : fmt1;
ImPlotTick& tick_maj = ticker.AddTick(t1.ToDouble(), true, 1, true, Formatter_Time, &ftd);
const char* this_major = ticker.GetText(tick_maj);
if (last_major_offset >= 0 && TimeLabelSame(ticker.TextBuffer.Buf.Data + last_major_offset, this_major))
tick_maj.ShowLabel = false;
last_major_offset = tick_maj.TextOffset;
}
// add minor ticks up until next major
if (minor_per_major > 1 && (t_min <= t2 && t1 <= t_max)) {
ImPlotTime t12 = AddTime(t1, unit0, step);
while (t12 < t2) {
float px_to_t2 = (float)((t2 - t12).ToDouble()/range.Size()) * pixels;
if (t12 >= t_min && t12 <= t_max) {
ftd.Time = t12; ftd.Spec = fmt0;
ticker.AddTick(t12.ToDouble(), false, 0, px_to_t2 >= fmt0_width, Formatter_Time, &ftd);
if (last_major_offset < 0 && px_to_t2 >= fmt0_width && px_to_t2 >= (fmt1_width + fmtf_width) / 2) {
ftd.Time = t12; ftd.Spec = fmtf;
ImPlotTick& tick_maj = ticker.AddTick(t12.ToDouble(), true, 1, true, Formatter_Time, &ftd);
last_major_offset = tick_maj.TextOffset;
}
}
t12 = AddTime(t12, unit0, step);
}
}
t1 = t2;
}
}
else {
const ImPlotDateTimeSpec fmty = GetDateTimeFmt(TimeFormatLevel0, ImPlotTimeUnit_Yr);
const float label_width = GetDateTimeWidth(fmty);
const int max_labels = (int)(max_density * pixels / label_width);
const int year_min = GetYear(t_min);
const int year_max = GetYear(CeilTime(t_max, ImPlotTimeUnit_Yr));
const double nice_range = NiceNum((year_max - year_min)*0.99,false);
const double interval = NiceNum(nice_range / (max_labels - 1), true);
const int graphmin = (int)(floor(year_min / interval) * interval);
const int graphmax = (int)(ceil(year_max / interval) * interval);
const int step = (int)interval <= 0 ? 1 : (int)interval;
for (int y = graphmin; y < graphmax; y += step) {
ImPlotTime t = MakeTime(y);
if (t >= t_min && t <= t_max) {
ftd.Time = t; ftd.Spec = fmty;
ticker.AddTick(t.ToDouble(), true, 0, true, Formatter_Time, &ftd);
}
}
}
}
//-----------------------------------------------------------------------------
// Context Menu
//-----------------------------------------------------------------------------
template <typename F>
bool DragFloat(const char*, F*, float, F, F) {
return false;
}
template <>
bool DragFloat<double>(const char* label, double* v, float v_speed, double v_min, double v_max) {
return ImGui::DragScalar(label, ImGuiDataType_Double, v, v_speed, &v_min, &v_max, "%.3f", 1);
}
template <>
bool DragFloat<float>(const char* label, float* v, float v_speed, float v_min, float v_max) {
return ImGui::DragScalar(label, ImGuiDataType_Float, v, v_speed, &v_min, &v_max, "%.3f", 1);
}
inline void BeginDisabledControls(bool cond) {
if (cond) {
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * 0.25f);
}
}
inline void EndDisabledControls(bool cond) {
if (cond) {
ImGui::PopItemFlag();
ImGui::PopStyleVar();
}
}
void ShowAxisContextMenu(ImPlotAxis& axis, ImPlotAxis* equal_axis, bool /*time_allowed*/) {
ImGui::PushItemWidth(75);
bool always_locked = axis.IsRangeLocked() || axis.IsAutoFitting();
bool label = axis.HasLabel();
bool grid = axis.HasGridLines();
bool ticks = axis.HasTickMarks();
bool labels = axis.HasTickLabels();
double drag_speed = (axis.Range.Size() <= DBL_EPSILON) ? DBL_EPSILON * 1.0e+13 : 0.01 * axis.Range.Size(); // recover from almost equal axis limits.
if (axis.Scale == ImPlotScale_Time) {
ImPlotTime tmin = ImPlotTime::FromDouble(axis.Range.Min);
ImPlotTime tmax = ImPlotTime::FromDouble(axis.Range.Max);
BeginDisabledControls(always_locked);
ImGui::CheckboxFlags("##LockMin", (unsigned int*)&axis.Flags, ImPlotAxisFlags_LockMin);
EndDisabledControls(always_locked);
ImGui::SameLine();
BeginDisabledControls(axis.IsLockedMin() || always_locked);
if (ImGui::BeginMenu("Min Time")) {
if (ShowTimePicker("mintime", &tmin)) {
if (tmin >= tmax)
tmax = AddTime(tmin, ImPlotTimeUnit_S, 1);
axis.SetRange(tmin.ToDouble(),tmax.ToDouble());
}
ImGui::Separator();
if (ShowDatePicker("mindate",&axis.PickerLevel,&axis.PickerTimeMin,&tmin,&tmax)) {
tmin = CombineDateTime(axis.PickerTimeMin, tmin);
if (tmin >= tmax)
tmax = AddTime(tmin, ImPlotTimeUnit_S, 1);
axis.SetRange(tmin.ToDouble(), tmax.ToDouble());
}
ImGui::EndMenu();
}
EndDisabledControls(axis.IsLockedMin() || always_locked);
BeginDisabledControls(always_locked);
ImGui::CheckboxFlags("##LockMax", (unsigned int*)&axis.Flags, ImPlotAxisFlags_LockMax);
EndDisabledControls(always_locked);
ImGui::SameLine();
BeginDisabledControls(axis.IsLockedMax() || always_locked);
if (ImGui::BeginMenu("Max Time")) {
if (ShowTimePicker("maxtime", &tmax)) {
if (tmax <= tmin)
tmin = AddTime(tmax, ImPlotTimeUnit_S, -1);
axis.SetRange(tmin.ToDouble(),tmax.ToDouble());
}
ImGui::Separator();
if (ShowDatePicker("maxdate",&axis.PickerLevel,&axis.PickerTimeMax,&tmin,&tmax)) {
tmax = CombineDateTime(axis.PickerTimeMax, tmax);
if (tmax <= tmin)
tmin = AddTime(tmax, ImPlotTimeUnit_S, -1);
axis.SetRange(tmin.ToDouble(), tmax.ToDouble());
}
ImGui::EndMenu();
}
EndDisabledControls(axis.IsLockedMax() || always_locked);
}
else {
BeginDisabledControls(always_locked);
ImGui::CheckboxFlags("##LockMin", (unsigned int*)&axis.Flags, ImPlotAxisFlags_LockMin);
EndDisabledControls(always_locked);
ImGui::SameLine();
BeginDisabledControls(axis.IsLockedMin() || always_locked);
double temp_min = axis.Range.Min;
if (DragFloat("Min", &temp_min, (float)drag_speed, -HUGE_VAL, axis.Range.Max - DBL_EPSILON)) {
axis.SetMin(temp_min,true);
if (equal_axis != NULL)
equal_axis->SetAspect(axis.GetAspect());
}
EndDisabledControls(axis.IsLockedMin() || always_locked);
BeginDisabledControls(always_locked);
ImGui::CheckboxFlags("##LockMax", (unsigned int*)&axis.Flags, ImPlotAxisFlags_LockMax);
EndDisabledControls(always_locked);
ImGui::SameLine();
BeginDisabledControls(axis.IsLockedMax() || always_locked);
double temp_max = axis.Range.Max;
if (DragFloat("Max", &temp_max, (float)drag_speed, axis.Range.Min + DBL_EPSILON, HUGE_VAL)) {
axis.SetMax(temp_max,true);
if (equal_axis != NULL)
equal_axis->SetAspect(axis.GetAspect());
}
EndDisabledControls(axis.IsLockedMax() || always_locked);
}
ImGui::Separator();
ImGui::CheckboxFlags("Auto-Fit",(unsigned int*)&axis.Flags, ImPlotAxisFlags_AutoFit);
// TODO
// BeginDisabledControls(axis.IsTime() && time_allowed);
// ImGui::CheckboxFlags("Log Scale",(unsigned int*)&axis.Flags, ImPlotAxisFlags_LogScale);
// EndDisabledControls(axis.IsTime() && time_allowed);
// if (time_allowed) {
// BeginDisabledControls(axis.IsLog() || axis.IsSymLog());
// ImGui::CheckboxFlags("Time",(unsigned int*)&axis.Flags, ImPlotAxisFlags_Time);
// EndDisabledControls(axis.IsLog() || axis.IsSymLog());
// }
ImGui::Separator();
ImGui::CheckboxFlags("Invert",(unsigned int*)&axis.Flags, ImPlotAxisFlags_Invert);
ImGui::CheckboxFlags("Opposite",(unsigned int*)&axis.Flags, ImPlotAxisFlags_Opposite);
ImGui::Separator();
BeginDisabledControls(axis.LabelOffset == -1);
if (ImGui::Checkbox("Label", &label))
ImFlipFlag(axis.Flags, ImPlotAxisFlags_NoLabel);
EndDisabledControls(axis.LabelOffset == -1);
if (ImGui::Checkbox("Grid Lines", &grid))
ImFlipFlag(axis.Flags, ImPlotAxisFlags_NoGridLines);
if (ImGui::Checkbox("Tick Marks", &ticks))
ImFlipFlag(axis.Flags, ImPlotAxisFlags_NoTickMarks);
if (ImGui::Checkbox("Tick Labels", &labels))
ImFlipFlag(axis.Flags, ImPlotAxisFlags_NoTickLabels);
}
bool ShowLegendContextMenu(ImPlotLegend& legend, bool visible) {
const float s = ImGui::GetFrameHeight();
bool ret = false;
if (ImGui::Checkbox("Show",&visible))
ret = true;
if (legend.CanGoInside)
ImGui::CheckboxFlags("Outside",(unsigned int*)&legend.Flags, ImPlotLegendFlags_Outside);
if (ImGui::RadioButton("H", ImHasFlag(legend.Flags, ImPlotLegendFlags_Horizontal)))
legend.Flags |= ImPlotLegendFlags_Horizontal;
ImGui::SameLine();
if (ImGui::RadioButton("V", !ImHasFlag(legend.Flags, ImPlotLegendFlags_Horizontal)))
legend.Flags &= ~ImPlotLegendFlags_Horizontal;
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(2,2));
if (ImGui::Button("NW",ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_NorthWest; } ImGui::SameLine();
if (ImGui::Button("N", ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_North; } ImGui::SameLine();
if (ImGui::Button("NE",ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_NorthEast; }
if (ImGui::Button("W", ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_West; } ImGui::SameLine();
if (ImGui::InvisibleButton("C", ImVec2(1.5f*s,s))) { } ImGui::SameLine();
if (ImGui::Button("E", ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_East; }
if (ImGui::Button("SW",ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_SouthWest; } ImGui::SameLine();
if (ImGui::Button("S", ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_South; } ImGui::SameLine();
if (ImGui::Button("SE",ImVec2(1.5f*s,s))) { legend.Location = ImPlotLocation_SouthEast; }
ImGui::PopStyleVar();
return ret;
}
void ShowSubplotsContextMenu(ImPlotSubplot& subplot) {
if ((ImGui::BeginMenu("Linking"))) {
if (ImGui::MenuItem("Link Rows",NULL,ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkRows)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_LinkRows);
if (ImGui::MenuItem("Link Cols",NULL,ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkCols)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_LinkCols);
if (ImGui::MenuItem("Link All X",NULL,ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkAllX)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_LinkAllX);
if (ImGui::MenuItem("Link All Y",NULL,ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkAllY)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_LinkAllY);
ImGui::EndMenu();
}
if ((ImGui::BeginMenu("Settings"))) {
BeginDisabledControls(!subplot.HasTitle);
if (ImGui::MenuItem("Title",NULL,subplot.HasTitle && !ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoTitle)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_NoTitle);
EndDisabledControls(!subplot.HasTitle);
if (ImGui::MenuItem("Resizable",NULL,!ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoResize)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_NoResize);
if (ImGui::MenuItem("Align",NULL,!ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoAlign)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_NoAlign);
if (ImGui::MenuItem("Share Items",NULL,ImHasFlag(subplot.Flags, ImPlotSubplotFlags_ShareItems)))
ImFlipFlag(subplot.Flags, ImPlotSubplotFlags_ShareItems);
ImGui::EndMenu();
}
}
void ShowPlotContextMenu(ImPlotPlot& plot) {
const bool owns_legend = GImPlot->CurrentItems == &plot.Items;
const bool equal = ImHasFlag(plot.Flags, ImPlotFlags_Equal);
char buf[16] = {};
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (!x_axis.Enabled || !x_axis.HasMenus())
continue;
ImGui::PushID(i);
ImFormatString(buf, sizeof(buf) - 1, i == 0 ? "X-Axis" : "X-Axis %d", i + 1);
if (ImGui::BeginMenu(x_axis.HasLabel() ? plot.GetAxisLabel(x_axis) : buf)) {
ShowAxisContextMenu(x_axis, equal ? x_axis.OrthoAxis : NULL, false);
ImGui::EndMenu();
}
ImGui::PopID();
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (!y_axis.Enabled || !y_axis.HasMenus())
continue;
ImGui::PushID(i);
ImFormatString(buf, sizeof(buf) - 1, i == 0 ? "Y-Axis" : "Y-Axis %d", i + 1);
if (ImGui::BeginMenu(y_axis.HasLabel() ? plot.GetAxisLabel(y_axis) : buf)) {
ShowAxisContextMenu(y_axis, equal ? y_axis.OrthoAxis : NULL, false);
ImGui::EndMenu();
}
ImGui::PopID();
}
ImGui::Separator();
if (!ImHasFlag(GImPlot->CurrentItems->Legend.Flags, ImPlotLegendFlags_NoMenus)) {
if ((ImGui::BeginMenu("Legend"))) {
if (owns_legend) {
if (ShowLegendContextMenu(plot.Items.Legend, !ImHasFlag(plot.Flags, ImPlotFlags_NoLegend)))
ImFlipFlag(plot.Flags, ImPlotFlags_NoLegend);
}
else if (GImPlot->CurrentSubplot != NULL) {
if (ShowLegendContextMenu(GImPlot->CurrentSubplot->Items.Legend, !ImHasFlag(GImPlot->CurrentSubplot->Flags, ImPlotSubplotFlags_NoLegend)))
ImFlipFlag(GImPlot->CurrentSubplot->Flags, ImPlotSubplotFlags_NoLegend);
}
ImGui::EndMenu();
}
}
if ((ImGui::BeginMenu("Settings"))) {
if (ImGui::MenuItem("Equal", NULL, ImHasFlag(plot.Flags, ImPlotFlags_Equal)))
ImFlipFlag(plot.Flags, ImPlotFlags_Equal);
if (ImGui::MenuItem("Box Select",NULL,!ImHasFlag(plot.Flags, ImPlotFlags_NoBoxSelect)))
ImFlipFlag(plot.Flags, ImPlotFlags_NoBoxSelect);
BeginDisabledControls(plot.TitleOffset == -1);
if (ImGui::MenuItem("Title",NULL,plot.HasTitle()))
ImFlipFlag(plot.Flags, ImPlotFlags_NoTitle);
EndDisabledControls(plot.TitleOffset == -1);
if (ImGui::MenuItem("Mouse Position",NULL,!ImHasFlag(plot.Flags, ImPlotFlags_NoMouseText)))
ImFlipFlag(plot.Flags, ImPlotFlags_NoMouseText);
if (ImGui::MenuItem("Crosshairs",NULL,ImHasFlag(plot.Flags, ImPlotFlags_Crosshairs)))
ImFlipFlag(plot.Flags, ImPlotFlags_Crosshairs);
ImGui::EndMenu();
}
if (GImPlot->CurrentSubplot != NULL && !ImHasFlag(GImPlot->CurrentPlot->Flags, ImPlotSubplotFlags_NoMenus)) {
ImGui::Separator();
if ((ImGui::BeginMenu("Subplots"))) {
ShowSubplotsContextMenu(*GImPlot->CurrentSubplot);
ImGui::EndMenu();
}
}
}
//-----------------------------------------------------------------------------
// Axis Utils
//-----------------------------------------------------------------------------
static inline int AxisPrecision(const ImPlotAxis& axis) {
const double range = axis.Ticker.TickCount() > 1 ? (axis.Ticker.Ticks[1].PlotPos - axis.Ticker.Ticks[0].PlotPos) : axis.Range.Size();
return Precision(range);
}
static inline double RoundAxisValue(const ImPlotAxis& axis, double value) {
return RoundTo(value, AxisPrecision(axis));
}
void LabelAxisValue(const ImPlotAxis& axis, double value, char* buff, int size, bool round) {
ImPlotContext& gp = *GImPlot;
// TODO: We shouldn't explicitly check that the axis is Time here. Ideally,
// Formatter_Time would handle the formatting for us, but the code below
// needs additional arguments which are not currently available in ImPlotFormatter
if (axis.Locator == Locator_Time) {
ImPlotTimeUnit unit = axis.Vertical
? GetUnitForRange(axis.Range.Size() / (gp.CurrentPlot->PlotRect.GetHeight() / 100)) // TODO: magic value!
: GetUnitForRange(axis.Range.Size() / (gp.CurrentPlot->PlotRect.GetWidth() / 100)); // TODO: magic value!
FormatDateTime(ImPlotTime::FromDouble(value), buff, size, GetDateTimeFmt(TimeFormatMouseCursor, unit));
}
else {
if (round)
value = RoundAxisValue(axis, value);
axis.Formatter(value, buff, size, axis.FormatterData);
}
}
void UpdateAxisColors(ImPlotAxis& axis) {
const ImVec4 col_grid = GetStyleColorVec4(ImPlotCol_AxisGrid);
axis.ColorMaj = ImGui::GetColorU32(col_grid);
axis.ColorMin = ImGui::GetColorU32(col_grid*ImVec4(1,1,1,GImPlot->Style.MinorAlpha));
axis.ColorTick = GetStyleColorU32(ImPlotCol_AxisTick);
axis.ColorTxt = GetStyleColorU32(ImPlotCol_AxisText);
axis.ColorBg = GetStyleColorU32(ImPlotCol_AxisBg);
axis.ColorHov = GetStyleColorU32(ImPlotCol_AxisBgHovered);
axis.ColorAct = GetStyleColorU32(ImPlotCol_AxisBgActive);
// axis.ColorHiLi = IM_COL32_BLACK_TRANS;
}
void PadAndDatumAxesX(ImPlotPlot& plot, float& pad_T, float& pad_B, ImPlotAlignmentData* align) {
ImPlotContext& gp = *GImPlot;
const float T = ImGui::GetTextLineHeight();
const float P = gp.Style.LabelPadding.y;
const float K = gp.Style.MinorTickLen.x;
int count_T = 0;
int count_B = 0;
float last_T = plot.AxesRect.Min.y;
float last_B = plot.AxesRect.Max.y;
for (int i = IMPLOT_NUM_X_AXES; i-- > 0;) { // FYI: can iterate forward
ImPlotAxis& axis = plot.XAxis(i);
if (!axis.Enabled)
continue;
const bool label = axis.HasLabel();
const bool ticks = axis.HasTickLabels();
const bool opp = axis.IsOpposite();
const bool time = axis.Scale == ImPlotScale_Time;
if (opp) {
if (count_T++ > 0)
pad_T += K + P;
if (label)
pad_T += T + P;
if (ticks)
pad_T += ImMax(T, axis.Ticker.MaxSize.y) + P + (time ? T + P : 0);
axis.Datum1 = plot.CanvasRect.Min.y + pad_T;
axis.Datum2 = last_T;
last_T = axis.Datum1;
}
else {
if (count_B++ > 0)
pad_B += K + P;
if (label)
pad_B += T + P;
if (ticks)
pad_B += ImMax(T, axis.Ticker.MaxSize.y) + P + (time ? T + P : 0);
axis.Datum1 = plot.CanvasRect.Max.y - pad_B;
axis.Datum2 = last_B;
last_B = axis.Datum1;
}
}
if (align) {
count_T = count_B = 0;
float delta_T, delta_B;
align->Update(pad_T,pad_B,delta_T,delta_B);
for (int i = IMPLOT_NUM_X_AXES; i-- > 0;) {
ImPlotAxis& axis = plot.XAxis(i);
if (!axis.Enabled)
continue;
if (axis.IsOpposite()) {
axis.Datum1 += delta_T;
axis.Datum2 += count_T++ > 1 ? delta_T : 0;
}
else {
axis.Datum1 -= delta_B;
axis.Datum2 -= count_B++ > 1 ? delta_B : 0;
}
}
}
}
void PadAndDatumAxesY(ImPlotPlot& plot, float& pad_L, float& pad_R, ImPlotAlignmentData* align) {
// [ pad_L ] [ pad_R ]
// .................CanvasRect................
// :TPWPK.PTPWP _____PlotRect____ PWPTP.KPWPT:
// :A # |- A # |- -| # A -| # A:
// :X | X | | X | x:
// :I # |- I # |- -| # I -| # I:
// :S | S | | S | S:
// :3 # |- 0 # |-_______________-| # 1 -| # 2:
// :.........................................:
//
// T = text height
// P = label padding
// K = minor tick length
// W = label width
ImPlotContext& gp = *GImPlot;
const float T = ImGui::GetTextLineHeight();
const float P = gp.Style.LabelPadding.x;
const float K = gp.Style.MinorTickLen.y;
int count_L = 0;
int count_R = 0;
float last_L = plot.AxesRect.Min.x;
float last_R = plot.AxesRect.Max.x;
for (int i = IMPLOT_NUM_Y_AXES; i-- > 0;) { // FYI: can iterate forward
ImPlotAxis& axis = plot.YAxis(i);
if (!axis.Enabled)
continue;
const bool label = axis.HasLabel();
const bool ticks = axis.HasTickLabels();
const bool opp = axis.IsOpposite();
if (opp) {
if (count_R++ > 0)
pad_R += K + P;
if (label)
pad_R += T + P;
if (ticks)
pad_R += axis.Ticker.MaxSize.x + P;
axis.Datum1 = plot.CanvasRect.Max.x - pad_R;
axis.Datum2 = last_R;
last_R = axis.Datum1;
}
else {
if (count_L++ > 0)
pad_L += K + P;
if (label)
pad_L += T + P;
if (ticks)
pad_L += axis.Ticker.MaxSize.x + P;
axis.Datum1 = plot.CanvasRect.Min.x + pad_L;
axis.Datum2 = last_L;
last_L = axis.Datum1;
}
}
plot.PlotRect.Min.x = plot.CanvasRect.Min.x + pad_L;
plot.PlotRect.Max.x = plot.CanvasRect.Max.x - pad_R;
if (align) {
count_L = count_R = 0;
float delta_L, delta_R;
align->Update(pad_L,pad_R,delta_L,delta_R);
for (int i = IMPLOT_NUM_Y_AXES; i-- > 0;) {
ImPlotAxis& axis = plot.YAxis(i);
if (!axis.Enabled)
continue;
if (axis.IsOpposite()) {
axis.Datum1 -= delta_R;
axis.Datum2 -= count_R++ > 1 ? delta_R : 0;
}
else {
axis.Datum1 += delta_L;
axis.Datum2 += count_L++ > 1 ? delta_L : 0;
}
}
}
}
//-----------------------------------------------------------------------------
// RENDERING
//-----------------------------------------------------------------------------
static inline void RenderGridLinesX(ImDrawList& DrawList, const ImPlotTicker& ticker, const ImRect& rect, ImU32 col_maj, ImU32 col_min, float size_maj, float size_min) {
const float density = ticker.TickCount() / rect.GetWidth();
ImVec4 col_min4 = ImGui::ColorConvertU32ToFloat4(col_min);
col_min4.w *= ImClamp(ImRemap(density, 0.1f, 0.2f, 1.0f, 0.0f), 0.0f, 1.0f);
col_min = ImGui::ColorConvertFloat4ToU32(col_min4);
for (int t = 0; t < ticker.TickCount(); t++) {
const ImPlotTick& xt = ticker.Ticks[t];
if (xt.PixelPos < rect.Min.x || xt.PixelPos > rect.Max.x)
continue;
if (xt.Level == 0) {
if (xt.Major)
DrawList.AddLine(ImVec2(xt.PixelPos, rect.Min.y), ImVec2(xt.PixelPos, rect.Max.y), col_maj, size_maj);
else if (density < 0.2f)
DrawList.AddLine(ImVec2(xt.PixelPos, rect.Min.y), ImVec2(xt.PixelPos, rect.Max.y), col_min, size_min);
}
}
}
static inline void RenderGridLinesY(ImDrawList& DrawList, const ImPlotTicker& ticker, const ImRect& rect, ImU32 col_maj, ImU32 col_min, float size_maj, float size_min) {
const float density = ticker.TickCount() / rect.GetHeight();
ImVec4 col_min4 = ImGui::ColorConvertU32ToFloat4(col_min);
col_min4.w *= ImClamp(ImRemap(density, 0.1f, 0.2f, 1.0f, 0.0f), 0.0f, 1.0f);
col_min = ImGui::ColorConvertFloat4ToU32(col_min4);
for (int t = 0; t < ticker.TickCount(); t++) {
const ImPlotTick& yt = ticker.Ticks[t];
if (yt.PixelPos < rect.Min.y || yt.PixelPos > rect.Max.y)
continue;
if (yt.Major)
DrawList.AddLine(ImVec2(rect.Min.x, yt.PixelPos), ImVec2(rect.Max.x, yt.PixelPos), col_maj, size_maj);
else if (density < 0.2f)
DrawList.AddLine(ImVec2(rect.Min.x, yt.PixelPos), ImVec2(rect.Max.x, yt.PixelPos), col_min, size_min);
}
}
static inline void RenderSelectionRect(ImDrawList& DrawList, const ImVec2& p_min, const ImVec2& p_max, const ImVec4& col) {
const ImU32 col_bg = ImGui::GetColorU32(col * ImVec4(1,1,1,0.25f));
const ImU32 col_bd = ImGui::GetColorU32(col);
DrawList.AddRectFilled(p_min, p_max, col_bg);
DrawList.AddRect(p_min, p_max, col_bd);
}
//-----------------------------------------------------------------------------
// Input Handling
//-----------------------------------------------------------------------------
static const float MOUSE_CURSOR_DRAG_THRESHOLD = 5.0f;
static const float BOX_SELECT_DRAG_THRESHOLD = 4.0f;
bool UpdateInput(ImPlotPlot& plot) {
bool changed = false;
ImPlotContext& gp = *GImPlot;
ImGuiIO& IO = ImGui::GetIO();
// BUTTON STATE -----------------------------------------------------------
const ImGuiButtonFlags plot_button_flags = ImGuiButtonFlags_AllowItemOverlap
| ImGuiButtonFlags_PressedOnClick
| ImGuiButtonFlags_PressedOnDoubleClick
| ImGuiButtonFlags_MouseButtonLeft
| ImGuiButtonFlags_MouseButtonRight
| ImGuiButtonFlags_MouseButtonMiddle;
const ImGuiButtonFlags axis_button_flags = ImGuiButtonFlags_FlattenChildren
| plot_button_flags;
const bool plot_clicked = ImGui::ButtonBehavior(plot.PlotRect,plot.ID,&plot.Hovered,&plot.Held,plot_button_flags);
ImGui::SetItemAllowOverlap();
if (plot_clicked) {
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoBoxSelect) && IO.MouseClicked[gp.InputMap.Select] && ImHasFlag(IO.KeyMods, gp.InputMap.SelectMod)) {
plot.Selecting = true;
plot.SelectStart = IO.MousePos;
plot.SelectRect = ImRect(0,0,0,0);
}
if (IO.MouseDoubleClicked[gp.InputMap.Fit]) {
plot.FitThisFrame = true;
for (int i = 0; i < ImAxis_COUNT; ++i)
plot.Axes[i].FitThisFrame = true;
}
}
const bool can_pan = IO.MouseDown[gp.InputMap.Pan] && ImHasFlag(IO.KeyMods, gp.InputMap.PanMod);
plot.Held = plot.Held && can_pan;
bool x_click[IMPLOT_NUM_X_AXES] = {false};
bool x_held[IMPLOT_NUM_X_AXES] = {false};
bool x_hov[IMPLOT_NUM_X_AXES] = {false};
bool y_click[IMPLOT_NUM_Y_AXES] = {false};
bool y_held[IMPLOT_NUM_Y_AXES] = {false};
bool y_hov[IMPLOT_NUM_Y_AXES] = {false};
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
ImPlotAxis& xax = plot.XAxis(i);
if (xax.Enabled) {
ImGui::KeepAliveID(xax.ID);
x_click[i] = ImGui::ButtonBehavior(xax.HoverRect,xax.ID,&xax.Hovered,&xax.Held,axis_button_flags);
if (x_click[i] && IO.MouseDoubleClicked[gp.InputMap.Fit])
plot.FitThisFrame = xax.FitThisFrame = true;
xax.Held = xax.Held && can_pan;
x_hov[i] = xax.Hovered || plot.Hovered;
x_held[i] = xax.Held || plot.Held;
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i) {
ImPlotAxis& yax = plot.YAxis(i);
if (yax.Enabled) {
ImGui::KeepAliveID(yax.ID);
y_click[i] = ImGui::ButtonBehavior(yax.HoverRect,yax.ID,&yax.Hovered,&yax.Held,axis_button_flags);
if (y_click[i] && IO.MouseDoubleClicked[gp.InputMap.Fit])
plot.FitThisFrame = yax.FitThisFrame = true;
yax.Held = yax.Held && can_pan;
y_hov[i] = yax.Hovered || plot.Hovered;
y_held[i] = yax.Held || plot.Held;
}
}
// cancel due to DND activity
if (GImGui->DragDropActive || (IO.KeyMods == gp.InputMap.OverrideMod && gp.InputMap.OverrideMod != 0))
return false;
// STATE -------------------------------------------------------------------
const bool axis_equal = ImHasFlag(plot.Flags, ImPlotFlags_Equal);
const bool any_x_hov = plot.Hovered || AnyAxesHovered(&plot.Axes[ImAxis_X1], IMPLOT_NUM_X_AXES);
const bool any_x_held = plot.Held || AnyAxesHeld(&plot.Axes[ImAxis_X1], IMPLOT_NUM_X_AXES);
const bool any_y_hov = plot.Hovered || AnyAxesHovered(&plot.Axes[ImAxis_Y1], IMPLOT_NUM_Y_AXES);
const bool any_y_held = plot.Held || AnyAxesHeld(&plot.Axes[ImAxis_Y1], IMPLOT_NUM_Y_AXES);
const bool any_hov = any_x_hov || any_y_hov;
const bool any_held = any_x_held || any_y_held;
const ImVec2 select_drag = ImGui::GetMouseDragDelta(gp.InputMap.Select);
const ImVec2 pan_drag = ImGui::GetMouseDragDelta(gp.InputMap.Pan);
const float select_drag_sq = ImLengthSqr(select_drag);
const float pan_drag_sq = ImLengthSqr(pan_drag);
const bool selecting = plot.Selecting && select_drag_sq > MOUSE_CURSOR_DRAG_THRESHOLD;
const bool panning = any_held && pan_drag_sq > MOUSE_CURSOR_DRAG_THRESHOLD;
// CONTEXT MENU -----------------------------------------------------------
if (IO.MouseReleased[gp.InputMap.Menu] && !plot.ContextLocked)
gp.OpenContextThisFrame = true;
if (selecting || panning)
plot.ContextLocked = true;
else if (!(IO.MouseDown[gp.InputMap.Menu] || IO.MouseReleased[gp.InputMap.Menu]))
plot.ContextLocked = false;
// DRAG INPUT -------------------------------------------------------------
if (any_held && !plot.Selecting) {
int drag_direction = 0;
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (x_held[i] && !x_axis.IsInputLocked()) {
drag_direction |= (1 << 1);
bool increasing = x_axis.IsInverted() ? IO.MouseDelta.x > 0 : IO.MouseDelta.x < 0;
if (IO.MouseDelta.x != 0 && !x_axis.IsPanLocked(increasing)) {
const double plot_l = x_axis.PixelsToPlot(plot.PlotRect.Min.x - IO.MouseDelta.x);
const double plot_r = x_axis.PixelsToPlot(plot.PlotRect.Max.x - IO.MouseDelta.x);
x_axis.SetMin(x_axis.IsInverted() ? plot_r : plot_l);
x_axis.SetMax(x_axis.IsInverted() ? plot_l : plot_r);
if (axis_equal && x_axis.OrthoAxis != NULL)
x_axis.OrthoAxis->SetAspect(x_axis.GetAspect());
changed = true;
}
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (y_held[i] && !y_axis.IsInputLocked()) {
drag_direction |= (1 << 2);
bool increasing = y_axis.IsInverted() ? IO.MouseDelta.y < 0 : IO.MouseDelta.y > 0;
if (IO.MouseDelta.y != 0 && !y_axis.IsPanLocked(increasing)) {
const double plot_t = y_axis.PixelsToPlot(plot.PlotRect.Min.y - IO.MouseDelta.y);
const double plot_b = y_axis.PixelsToPlot(plot.PlotRect.Max.y - IO.MouseDelta.y);
y_axis.SetMin(y_axis.IsInverted() ? plot_t : plot_b);
y_axis.SetMax(y_axis.IsInverted() ? plot_b : plot_t);
if (axis_equal && y_axis.OrthoAxis != NULL)
y_axis.OrthoAxis->SetAspect(y_axis.GetAspect());
changed = true;
}
}
}
if (IO.MouseDragMaxDistanceSqr[gp.InputMap.Pan] > MOUSE_CURSOR_DRAG_THRESHOLD) {
switch (drag_direction) {
case 0 : ImGui::SetMouseCursor(ImGuiMouseCursor_NotAllowed); break;
case (1 << 1) : ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW); break;
case (1 << 2) : ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS); break;
default : ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeAll); break;
}
}
}
// SCROLL INPUT -----------------------------------------------------------
if (any_hov && IO.MouseWheel != 0 && ImHasFlag(IO.KeyMods, gp.InputMap.ZoomMod)) {
float zoom_rate = gp.InputMap.ZoomRate;
if (IO.MouseWheel > 0)
zoom_rate = (-zoom_rate) / (1.0f + (2.0f * zoom_rate));
ImVec2 rect_size = plot.PlotRect.GetSize();
float tx = ImRemap(IO.MousePos.x, plot.PlotRect.Min.x, plot.PlotRect.Max.x, 0.0f, 1.0f);
float ty = ImRemap(IO.MousePos.y, plot.PlotRect.Min.y, plot.PlotRect.Max.y, 0.0f, 1.0f);
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
const bool equal_zoom = axis_equal && x_axis.OrthoAxis != NULL;
const bool equal_locked = (equal_zoom != false) && x_axis.OrthoAxis->IsInputLocked();
if (x_hov[i] && !x_axis.IsInputLocked() && !equal_locked) {
float correction = (plot.Hovered && equal_zoom) ? 0.5f : 1.0f;
const double plot_l = x_axis.PixelsToPlot(plot.PlotRect.Min.x - rect_size.x * tx * zoom_rate * correction);
const double plot_r = x_axis.PixelsToPlot(plot.PlotRect.Max.x + rect_size.x * (1 - tx) * zoom_rate * correction);
x_axis.SetMin(x_axis.IsInverted() ? plot_r : plot_l);
x_axis.SetMax(x_axis.IsInverted() ? plot_l : plot_r);
if (axis_equal && x_axis.OrthoAxis != NULL)
x_axis.OrthoAxis->SetAspect(x_axis.GetAspect());
changed = true;
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
const bool equal_zoom = axis_equal && y_axis.OrthoAxis != NULL;
const bool equal_locked = equal_zoom && y_axis.OrthoAxis->IsInputLocked();
if (y_hov[i] && !y_axis.IsInputLocked() && !equal_locked) {
float correction = (plot.Hovered && equal_zoom) ? 0.5f : 1.0f;
const double plot_t = y_axis.PixelsToPlot(plot.PlotRect.Min.y - rect_size.y * ty * zoom_rate * correction);
const double plot_b = y_axis.PixelsToPlot(plot.PlotRect.Max.y + rect_size.y * (1 - ty) * zoom_rate * correction);
y_axis.SetMin(y_axis.IsInverted() ? plot_t : plot_b);
y_axis.SetMax(y_axis.IsInverted() ? plot_b : plot_t);
if (axis_equal && y_axis.OrthoAxis != NULL)
y_axis.OrthoAxis->SetAspect(y_axis.GetAspect());
changed = true;
}
}
}
// BOX-SELECTION ----------------------------------------------------------
if (plot.Selecting) {
const ImVec2 d = plot.SelectStart - IO.MousePos;
const bool x_can_change = !ImHasFlag(IO.KeyMods,gp.InputMap.SelectHorzMod) && ImFabs(d.x) > 2;
const bool y_can_change = !ImHasFlag(IO.KeyMods,gp.InputMap.SelectVertMod) && ImFabs(d.y) > 2;
// confirm
if (IO.MouseReleased[gp.InputMap.Select]) {
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (!x_axis.IsInputLocked() && x_can_change) {
const double p1 = x_axis.PixelsToPlot(plot.SelectStart.x);
const double p2 = x_axis.PixelsToPlot(IO.MousePos.x);
x_axis.SetMin(ImMin(p1, p2));
x_axis.SetMax(ImMax(p1, p2));
changed = true;
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (!y_axis.IsInputLocked() && y_can_change) {
const double p1 = y_axis.PixelsToPlot(plot.SelectStart.y);
const double p2 = y_axis.PixelsToPlot(IO.MousePos.y);
y_axis.SetMin(ImMin(p1, p2));
y_axis.SetMax(ImMax(p1, p2));
changed = true;
}
}
if (x_can_change || y_can_change || (ImHasFlag(IO.KeyMods,gp.InputMap.SelectHorzMod) && ImHasFlag(IO.KeyMods,gp.InputMap.SelectVertMod)))
gp.OpenContextThisFrame = false;
plot.Selected = plot.Selecting = false;
}
// cancel
else if (IO.MouseReleased[gp.InputMap.SelectCancel]) {
plot.Selected = plot.Selecting = false;
gp.OpenContextThisFrame = false;
}
else if (ImLengthSqr(d) > BOX_SELECT_DRAG_THRESHOLD) {
// bad selection
if (plot.IsInputLocked()) {
ImGui::SetMouseCursor(ImGuiMouseCursor_NotAllowed);
gp.OpenContextThisFrame = false;
plot.Selected = false;
}
else {
// TODO: Handle only min or max locked cases
const bool full_width = ImHasFlag(IO.KeyMods, gp.InputMap.SelectHorzMod) || AllAxesInputLocked(&plot.Axes[ImAxis_X1], IMPLOT_NUM_X_AXES);
const bool full_height = ImHasFlag(IO.KeyMods, gp.InputMap.SelectVertMod) || AllAxesInputLocked(&plot.Axes[ImAxis_Y1], IMPLOT_NUM_Y_AXES);
plot.SelectRect.Min.x = full_width ? plot.PlotRect.Min.x : ImMin(plot.SelectStart.x, IO.MousePos.x);
plot.SelectRect.Max.x = full_width ? plot.PlotRect.Max.x : ImMax(plot.SelectStart.x, IO.MousePos.x);
plot.SelectRect.Min.y = full_height ? plot.PlotRect.Min.y : ImMin(plot.SelectStart.y, IO.MousePos.y);
plot.SelectRect.Max.y = full_height ? plot.PlotRect.Max.y : ImMax(plot.SelectStart.y, IO.MousePos.y);
plot.SelectRect.Min -= plot.PlotRect.Min;
plot.SelectRect.Max -= plot.PlotRect.Min;
plot.Selected = true;
}
}
else {
plot.Selected = false;
}
}
return changed;
}
//-----------------------------------------------------------------------------
// Next Plot Data (Legacy)
//-----------------------------------------------------------------------------
void ApplyNextPlotData(ImAxis idx) {
ImPlotContext& gp = *GImPlot;
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
if (!axis.Enabled)
return;
double* npd_lmin = gp.NextPlotData.LinkedMin[idx];
double* npd_lmax = gp.NextPlotData.LinkedMax[idx];
bool npd_rngh = gp.NextPlotData.HasRange[idx];
ImPlotCond npd_rngc = gp.NextPlotData.RangeCond[idx];
ImPlotRange npd_rngv = gp.NextPlotData.Range[idx];
axis.LinkedMin = npd_lmin;
axis.LinkedMax = npd_lmax;
axis.PullLinks();
if (npd_rngh) {
if (!plot.Initialized || npd_rngc == ImPlotCond_Always)
axis.SetRange(npd_rngv);
}
axis.HasRange = npd_rngh;
axis.RangeCond = npd_rngc;
}
//-----------------------------------------------------------------------------
// Setup
//-----------------------------------------------------------------------------
void SetupAxis(ImAxis idx, const char* label, ImPlotAxisFlags flags) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
// get plot and axis
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
// set ID
axis.ID = plot.ID + idx + 1;
// check and set flags
if (plot.JustCreated || flags != axis.PreviousFlags)
axis.Flags = flags;
axis.PreviousFlags = flags;
// enable axis
axis.Enabled = true;
// set label
plot.SetAxisLabel(axis,label);
// cache colors
UpdateAxisColors(axis);
}
void SetupAxisLimits(ImAxis idx, double min_lim, double max_lim, ImPlotCond cond) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!"); // get plot and axis
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
if (!plot.Initialized || cond == ImPlotCond_Always)
axis.SetRange(min_lim, max_lim);
axis.HasRange = true;
axis.RangeCond = cond;
}
void SetupAxisFormat(ImAxis idx, const char* fmt) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.HasFormatSpec = fmt != NULL;
if (fmt != NULL)
ImStrncpy(axis.FormatSpec,fmt,sizeof(axis.FormatSpec));
}
void SetupAxisLinks(ImAxis idx, double* min_lnk, double* max_lnk) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.LinkedMin = min_lnk;
axis.LinkedMax = max_lnk;
axis.PullLinks();
}
void SetupAxisFormat(ImAxis idx, ImPlotFormatter formatter, void* data) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.Formatter = formatter;
axis.FormatterData = data;
}
void SetupAxisTicks(ImAxis idx, const double* values, int n_ticks, const char* const labels[], bool show_default) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.ShowDefaultTicks = show_default;
AddTicksCustom(values,
labels,
n_ticks,
axis.Ticker,
axis.Formatter ? axis.Formatter : Formatter_Default,
(axis.Formatter && axis.FormatterData) ? axis.FormatterData : axis.HasFormatSpec ? axis.FormatSpec : (void*)IMPLOT_LABEL_FORMAT);
}
void SetupAxisTicks(ImAxis idx, double v_min, double v_max, int n_ticks, const char* const labels[], bool show_default) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
n_ticks = n_ticks < 2 ? 2 : n_ticks;
FillRange(GImPlot->TempDouble1, n_ticks, v_min, v_max);
SetupAxisTicks(idx, GImPlot->TempDouble1.Data, n_ticks, labels, show_default);
}
void SetupAxisScale(ImAxis idx, ImPlotScale scale) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.Scale = scale;
switch (scale)
{
case ImPlotScale_Time:
axis.TransformForward = NULL;
axis.TransformInverse = NULL;
axis.TransformData = NULL;
axis.Locator = Locator_Time;
axis.ConstraintRange = ImPlotRange(IMPLOT_MIN_TIME, IMPLOT_MAX_TIME);
axis.Ticker.Levels = 2;
break;
case ImPlotScale_Log10:
axis.TransformForward = TransformForward_Log10;
axis.TransformInverse = TransformInverse_Log10;
axis.TransformData = NULL;
axis.Locator = Locator_Log10;
axis.ConstraintRange = ImPlotRange(DBL_MIN, INFINITY);
break;
case ImPlotScale_SymLog:
axis.TransformForward = TransformForward_SymLog;
axis.TransformInverse = TransformInverse_SymLog;
axis.TransformData = NULL;
axis.Locator = Locator_SymLog;
axis.ConstraintRange = ImPlotRange(-INFINITY, INFINITY);
break;
default:
axis.TransformForward = NULL;
axis.TransformInverse = NULL;
axis.TransformData = NULL;
axis.Locator = NULL;
axis.ConstraintRange = ImPlotRange(-INFINITY, INFINITY);
break;
}
}
void SetupAxisScale(ImAxis idx, ImPlotTransform fwd, ImPlotTransform inv, void* data) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.Scale = IMPLOT_AUTO;
axis.TransformForward = fwd;
axis.TransformInverse = inv;
axis.TransformData = data;
}
void SetupAxisLimitsConstraints(ImAxis idx, double v_min, double v_max) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.ConstraintRange.Min = v_min;
axis.ConstraintRange.Max = v_max;
}
void SetupAxisZoomConstraints(ImAxis idx, double z_min, double z_max) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& axis = plot.Axes[idx];
IM_ASSERT_USER_ERROR(axis.Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
axis.ConstraintZoom.Min = z_min;
axis.ConstraintZoom.Max = z_max;
}
void SetupAxes(const char* x_label, const char* y_label, ImPlotAxisFlags x_flags, ImPlotAxisFlags y_flags) {
SetupAxis(ImAxis_X1, x_label, x_flags);
SetupAxis(ImAxis_Y1, y_label, y_flags);
}
void SetupAxesLimits(double x_min, double x_max, double y_min, double y_max, ImPlotCond cond) {
SetupAxisLimits(ImAxis_X1, x_min, x_max, cond);
SetupAxisLimits(ImAxis_Y1, y_min, y_max, cond);
}
void SetupLegend(ImPlotLocation location, ImPlotLegendFlags flags) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
IM_ASSERT_USER_ERROR(GImPlot->CurrentItems != NULL,
"SetupLegend() needs to be called within an itemized context!");
ImPlotLegend& legend = GImPlot->CurrentItems->Legend;
// check and set location
if (location != legend.PreviousLocation)
legend.Location = location;
legend.PreviousLocation = location;
// check and set flags
if (flags != legend.PreviousFlags)
legend.Flags = flags;
legend.PreviousFlags = flags;
}
void SetupMouseText(ImPlotLocation location, ImPlotMouseTextFlags flags) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL && !GImPlot->CurrentPlot->SetupLocked,
"Setup needs to be called after BeginPlot and before any setup locking functions (e.g. PlotX)!");
GImPlot->CurrentPlot->MouseTextLocation = location;
GImPlot->CurrentPlot->MouseTextFlags = flags;
}
//-----------------------------------------------------------------------------
// SetNext
//-----------------------------------------------------------------------------
void SetNextAxisLimits(ImAxis axis, double v_min, double v_max, ImPlotCond cond) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot == NULL, "SetNextAxisLimits() needs to be called before BeginPlot()!");
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
gp.NextPlotData.HasRange[axis] = true;
gp.NextPlotData.RangeCond[axis] = cond;
gp.NextPlotData.Range[axis].Min = v_min;
gp.NextPlotData.Range[axis].Max = v_max;
}
void SetNextAxisLinks(ImAxis axis, double* link_min, double* link_max) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot == NULL, "SetNextAxisLinks() needs to be called before BeginPlot()!");
gp.NextPlotData.LinkedMin[axis] = link_min;
gp.NextPlotData.LinkedMax[axis] = link_max;
}
void SetNextAxisToFit(ImAxis axis) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot == NULL, "SetNextAxisToFit() needs to be called before BeginPlot()!");
gp.NextPlotData.Fit[axis] = true;
}
void SetNextAxesLimits(double x_min, double x_max, double y_min, double y_max, ImPlotCond cond) {
SetNextAxisLimits(ImAxis_X1, x_min, x_max, cond);
SetNextAxisLimits(ImAxis_Y1, y_min, y_max, cond);
}
void SetNextAxesToFit() {
for (int i = 0; i < ImAxis_COUNT; ++i)
SetNextAxisToFit(i);
}
//-----------------------------------------------------------------------------
// BeginPlot
//-----------------------------------------------------------------------------
bool BeginPlot(const char* title_id, const ImVec2& size, ImPlotFlags flags) {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot == NULL, "Mismatched BeginPlot()/EndPlot()!");
// FRONT MATTER -----------------------------------------------------------
if (GImPlot->CurrentSubplot != NULL)
ImGui::PushID(GImPlot->CurrentSubplot->CurrentIdx);
// get globals
ImPlotContext& gp = *GImPlot;
ImGuiContext &G = *GImGui;
ImGuiWindow* Window = G.CurrentWindow;
// skip if needed
if (Window->SkipItems && !gp.CurrentSubplot) {
ResetCtxForNextPlot(GImPlot);
return false;
}
// ID and age (TODO: keep track of plot age in frames)
const ImGuiID ID = Window->GetID(title_id);
const bool just_created = gp.Plots.GetByKey(ID) == NULL;
gp.CurrentPlot = gp.Plots.GetOrAddByKey(ID);
ImPlotPlot &plot = *gp.CurrentPlot;
plot.ID = ID;
plot.Items.ID = ID - 1;
plot.JustCreated = just_created;
plot.SetupLocked = false;
// check flags
if (plot.JustCreated)
plot.Flags = flags;
else if (flags != plot.PreviousFlags)
plot.Flags = flags;
plot.PreviousFlags = flags;
// setup default axes
if (plot.JustCreated) {
SetupAxis(ImAxis_X1);
SetupAxis(ImAxis_Y1);
}
// reset axes
for (int i = 0; i < ImAxis_COUNT; ++i) {
plot.Axes[i].Reset();
UpdateAxisColors(plot.Axes[i]);
}
// ensure first axes enabled
plot.Axes[ImAxis_X1].Enabled = true;
plot.Axes[ImAxis_Y1].Enabled = true;
// set initial axes
plot.CurrentX = ImAxis_X1;
plot.CurrentY = ImAxis_Y1;
// process next plot data (legacy)
for (int i = 0; i < ImAxis_COUNT; ++i)
ApplyNextPlotData(i);
// capture scroll with a child region
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoChild)) {
ImVec2 child_size;
if (gp.CurrentSubplot != NULL)
child_size = gp.CurrentSubplot->CellSize;
else
child_size = ImVec2(size.x == 0 ? gp.Style.PlotDefaultSize.x : size.x, size.y == 0 ? gp.Style.PlotDefaultSize.y : size.y);
ImGui::BeginChild(title_id, child_size, false, ImGuiWindowFlags_NoScrollbar);
Window = ImGui::GetCurrentWindow();
Window->ScrollMax.y = 1.0f;
gp.ChildWindowMade = true;
}
else {
gp.ChildWindowMade = false;
}
// clear text buffers
plot.ClearTextBuffer();
plot.SetTitle(title_id);
// set frame size
ImVec2 frame_size;
if (gp.CurrentSubplot != NULL)
frame_size = gp.CurrentSubplot->CellSize;
else
frame_size = ImGui::CalcItemSize(size, gp.Style.PlotDefaultSize.x, gp.Style.PlotDefaultSize.y);
if (frame_size.x < gp.Style.PlotMinSize.x && (size.x < 0.0f || gp.CurrentSubplot != NULL))
frame_size.x = gp.Style.PlotMinSize.x;
if (frame_size.y < gp.Style.PlotMinSize.y && (size.y < 0.0f || gp.CurrentSubplot != NULL))
frame_size.y = gp.Style.PlotMinSize.y;
plot.FrameRect = ImRect(Window->DC.CursorPos, Window->DC.CursorPos + frame_size);
ImGui::ItemSize(plot.FrameRect);
if (!ImGui::ItemAdd(plot.FrameRect, plot.ID, &plot.FrameRect) && !gp.CurrentSubplot) {
ResetCtxForNextPlot(GImPlot);
return false;
}
// setup items (or dont)
if (gp.CurrentItems == NULL)
gp.CurrentItems = &plot.Items;
return true;
}
//-----------------------------------------------------------------------------
// SetupFinish
//-----------------------------------------------------------------------------
void SetupFinish() {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "SetupFinish needs to be called after BeginPlot!");
ImPlotContext& gp = *GImPlot;
ImGuiContext& G = *GImGui;
ImDrawList& DrawList = *G.CurrentWindow->DrawList;
const ImGuiStyle& Style = G.Style;
ImPlotPlot &plot = *gp.CurrentPlot;
// lock setup
plot.SetupLocked = true;
// finalize axes and set default formatter/locator
for (int i = 0; i < ImAxis_COUNT; ++i) {
ImPlotAxis& axis = plot.Axes[i];
if (axis.Enabled) {
axis.Constrain();
if (!plot.Initialized && axis.CanInitFit())
plot.FitThisFrame = axis.FitThisFrame = true;
}
if (axis.Formatter == NULL) {
axis.Formatter = Formatter_Default;
if (axis.HasFormatSpec)
axis.FormatterData = axis.FormatSpec;
else
axis.FormatterData = (void*)IMPLOT_LABEL_FORMAT;
}
if (axis.Locator == NULL) {
axis.Locator = Locator_Default;
}
}
// setup NULL orthogonal axes
const bool axis_equal = ImHasFlag(plot.Flags, ImPlotFlags_Equal);
for (int ix = ImAxis_X1, iy = ImAxis_Y1; ix < ImAxis_Y1 || iy < ImAxis_COUNT; ++ix, ++iy) {
ImPlotAxis& x_axis = plot.Axes[ix];
ImPlotAxis& y_axis = plot.Axes[iy];
if (x_axis.Enabled && y_axis.Enabled) {
if (x_axis.OrthoAxis == NULL)
x_axis.OrthoAxis = &y_axis;
if (y_axis.OrthoAxis == NULL)
y_axis.OrthoAxis = &x_axis;
}
else if (x_axis.Enabled)
{
if (x_axis.OrthoAxis == NULL && !axis_equal)
x_axis.OrthoAxis = &plot.Axes[ImAxis_Y1];
}
else if (y_axis.Enabled) {
if (y_axis.OrthoAxis == NULL && !axis_equal)
y_axis.OrthoAxis = &plot.Axes[ImAxis_X1];
}
}
// canvas/axes bb
plot.CanvasRect = ImRect(plot.FrameRect.Min + gp.Style.PlotPadding, plot.FrameRect.Max - gp.Style.PlotPadding);
plot.AxesRect = plot.FrameRect;
// outside legend adjustments
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoLegend) && plot.Items.GetLegendCount() > 0 && ImHasFlag(plot.Items.Legend.Flags, ImPlotLegendFlags_Outside)) {
ImPlotLegend& legend = plot.Items.Legend;
const bool horz = ImHasFlag(legend.Flags, ImPlotLegendFlags_Horizontal);
const ImVec2 legend_size = CalcLegendSize(plot.Items, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, !horz);
const bool west = ImHasFlag(legend.Location, ImPlotLocation_West) && !ImHasFlag(legend.Location, ImPlotLocation_East);
const bool east = ImHasFlag(legend.Location, ImPlotLocation_East) && !ImHasFlag(legend.Location, ImPlotLocation_West);
const bool north = ImHasFlag(legend.Location, ImPlotLocation_North) && !ImHasFlag(legend.Location, ImPlotLocation_South);
const bool south = ImHasFlag(legend.Location, ImPlotLocation_South) && !ImHasFlag(legend.Location, ImPlotLocation_North);
if ((west && !horz) || (west && horz && !north && !south)) {
plot.CanvasRect.Min.x += (legend_size.x + gp.Style.LegendPadding.x);
plot.AxesRect.Min.x += (legend_size.x + gp.Style.PlotPadding.x);
}
if ((east && !horz) || (east && horz && !north && !south)) {
plot.CanvasRect.Max.x -= (legend_size.x + gp.Style.LegendPadding.x);
plot.AxesRect.Max.x -= (legend_size.x + gp.Style.PlotPadding.x);
}
if ((north && horz) || (north && !horz && !west && !east)) {
plot.CanvasRect.Min.y += (legend_size.y + gp.Style.LegendPadding.y);
plot.AxesRect.Min.y += (legend_size.y + gp.Style.PlotPadding.y);
}
if ((south && horz) || (south && !horz && !west && !east)) {
plot.CanvasRect.Max.y -= (legend_size.y + gp.Style.LegendPadding.y);
plot.AxesRect.Max.y -= (legend_size.y + gp.Style.PlotPadding.y);
}
}
// plot bb
float pad_top = 0, pad_bot = 0, pad_left = 0, pad_right = 0;
// (0) calc top padding form title
ImVec2 title_size(0.0f, 0.0f);
if (plot.HasTitle())
title_size = ImGui::CalcTextSize(plot.GetTitle(), NULL, true);
if (title_size.x > 0) {
pad_top += title_size.y + gp.Style.LabelPadding.y;
plot.AxesRect.Min.y += gp.Style.PlotPadding.y + pad_top;
}
// (1) calc addition top padding and bot padding
PadAndDatumAxesX(plot,pad_top,pad_bot,gp.CurrentAlignmentH);
const float plot_height = plot.CanvasRect.GetHeight() - pad_top - pad_bot;
// (2) get y tick labels (needed for left/right pad)
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& axis = plot.YAxis(i);
if (axis.WillRender() && axis.ShowDefaultTicks) {
axis.Locator(axis.Ticker, axis.Range, plot_height, true, axis.Formatter, axis.FormatterData);
}
}
// (3) calc left/right pad
PadAndDatumAxesY(plot,pad_left,pad_right,gp.CurrentAlignmentV);
const float plot_width = plot.CanvasRect.GetWidth() - pad_left - pad_right;
// (4) get x ticks
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& axis = plot.XAxis(i);
if (axis.WillRender() && axis.ShowDefaultTicks) {
axis.Locator(axis.Ticker, axis.Range, plot_width, false, axis.Formatter, axis.FormatterData);
}
}
// (5) calc plot bb
plot.PlotRect = ImRect(plot.CanvasRect.Min + ImVec2(pad_left, pad_top), plot.CanvasRect.Max - ImVec2(pad_right, pad_bot));
// HOVER------------------------------------------------------------
// axes hover rect, pixel ranges
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
ImPlotAxis& xax = plot.XAxis(i);
xax.HoverRect = ImRect(ImVec2(plot.PlotRect.Min.x, ImMin(xax.Datum1,xax.Datum2)),
ImVec2(plot.PlotRect.Max.x, ImMax(xax.Datum1,xax.Datum2)));
xax.PixelMin = xax.IsInverted() ? plot.PlotRect.Max.x : plot.PlotRect.Min.x;
xax.PixelMax = xax.IsInverted() ? plot.PlotRect.Min.x : plot.PlotRect.Max.x;
xax.UpdateTransformCache();
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i) {
ImPlotAxis& yax = plot.YAxis(i);
yax.HoverRect = ImRect(ImVec2(ImMin(yax.Datum1,yax.Datum2),plot.PlotRect.Min.y),
ImVec2(ImMax(yax.Datum1,yax.Datum2),plot.PlotRect.Max.y));
yax.PixelMin = yax.IsInverted() ? plot.PlotRect.Min.y : plot.PlotRect.Max.y;
yax.PixelMax = yax.IsInverted() ? plot.PlotRect.Max.y : plot.PlotRect.Min.y;
yax.UpdateTransformCache();
}
// Equal axis constraint. Must happen after we set Pixels
// constrain equal axes for primary x and y if not approximately equal
// constrains x to y since x pixel size depends on y labels width, and causes feedback loops in opposite case
if (axis_equal) {
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (x_axis.OrthoAxis == NULL)
continue;
double xar = x_axis.GetAspect();
double yar = x_axis.OrthoAxis->GetAspect();
// edge case: user has set x range this frame, so fit y to x so that we honor their request for x range
// NB: because of feedback across several frames, the user's x request may not be perfectly honored
if (x_axis.HasRange)
x_axis.OrthoAxis->SetAspect(xar);
else if (!ImAlmostEqual(xar,yar) && !x_axis.OrthoAxis->IsInputLocked())
x_axis.SetAspect(yar);
}
}
// INPUT ------------------------------------------------------------------
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoInputs))
UpdateInput(plot);
// fit from FitNextPlotAxes or auto fit
for (int i = 0; i < ImAxis_COUNT; ++i) {
if (gp.NextPlotData.Fit[i] || plot.Axes[i].IsAutoFitting()) {
plot.FitThisFrame = true;
plot.Axes[i].FitThisFrame = true;
}
}
// RENDER -----------------------------------------------------------------
const float txt_height = ImGui::GetTextLineHeight();
// render frame
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoFrame))
ImGui::RenderFrame(plot.FrameRect.Min, plot.FrameRect.Max, GetStyleColorU32(ImPlotCol_FrameBg), true, Style.FrameRounding);
// grid bg
DrawList.AddRectFilled(plot.PlotRect.Min, plot.PlotRect.Max, GetStyleColorU32(ImPlotCol_PlotBg));
// transform ticks
for (int i = 0; i < ImAxis_COUNT; i++) {
ImPlotAxis& axis = plot.Axes[i];
if (axis.WillRender()) {
for (int t = 0; t < axis.Ticker.TickCount(); t++) {
ImPlotTick& tk = axis.Ticker.Ticks[t];
tk.PixelPos = IM_ROUND(axis.PlotToPixels(tk.PlotPos));
}
}
}
// render grid (background)
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (x_axis.Enabled && x_axis.HasGridLines() && !x_axis.IsForeground())
RenderGridLinesX(DrawList, x_axis.Ticker, plot.PlotRect, x_axis.ColorMaj, x_axis.ColorMin, gp.Style.MajorGridSize.x, gp.Style.MinorGridSize.x);
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (y_axis.Enabled && y_axis.HasGridLines() && !y_axis.IsForeground())
RenderGridLinesY(DrawList, y_axis.Ticker, plot.PlotRect, y_axis.ColorMaj, y_axis.ColorMin, gp.Style.MajorGridSize.y, gp.Style.MinorGridSize.y);
}
// render x axis button, label, tick labels
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& ax = plot.XAxis(i);
if (!ax.Enabled)
continue;
if ((ax.Hovered || ax.Held) && !plot.Held && !ImHasFlag(ax.Flags, ImPlotAxisFlags_NoHighlight))
DrawList.AddRectFilled(ax.HoverRect.Min, ax.HoverRect.Max, ax.Held ? ax.ColorAct : ax.ColorHov);
else if (ax.ColorHiLi != IM_COL32_BLACK_TRANS) {
DrawList.AddRectFilled(ax.HoverRect.Min, ax.HoverRect.Max, ax.ColorHiLi);
ax.ColorHiLi = IM_COL32_BLACK_TRANS;
}
else if (ax.ColorBg != IM_COL32_BLACK_TRANS) {
DrawList.AddRectFilled(ax.HoverRect.Min, ax.HoverRect.Max, ax.ColorBg);
}
const ImPlotTicker& tkr = ax.Ticker;
const bool opp = ax.IsOpposite();
if (ax.HasLabel()) {
const char* label = plot.GetAxisLabel(ax);
const ImVec2 label_size = ImGui::CalcTextSize(label);
const float label_offset = (ax.HasTickLabels() ? tkr.MaxSize.y + gp.Style.LabelPadding.y : 0.0f)
+ (tkr.Levels - 1) * (txt_height + gp.Style.LabelPadding.y)
+ gp.Style.LabelPadding.y;
const ImVec2 label_pos(plot.PlotRect.GetCenter().x - label_size.x * 0.5f,
opp ? ax.Datum1 - label_offset - label_size.y : ax.Datum1 + label_offset);
DrawList.AddText(label_pos, ax.ColorTxt, label);
}
if (ax.HasTickLabels()) {
for (int j = 0; j < tkr.TickCount(); ++j) {
const ImPlotTick& tk = tkr.Ticks[j];
const float datum = ax.Datum1 + (opp ? (-gp.Style.LabelPadding.y -txt_height -tk.Level * (txt_height + gp.Style.LabelPadding.y))
: gp.Style.LabelPadding.y + tk.Level * (txt_height + gp.Style.LabelPadding.y));
if (tk.ShowLabel && tk.PixelPos >= plot.PlotRect.Min.x - 1 && tk.PixelPos <= plot.PlotRect.Max.x + 1) {
ImVec2 start(tk.PixelPos - 0.5f * tk.LabelSize.x, datum);
DrawList.AddText(start, ax.ColorTxt, tkr.GetText(j));
}
}
}
}
// render y axis button, label, tick labels
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& ax = plot.YAxis(i);
if (!ax.Enabled)
continue;
if ((ax.Hovered || ax.Held) && !plot.Held && !ImHasFlag(ax.Flags, ImPlotAxisFlags_NoHighlight))
DrawList.AddRectFilled(ax.HoverRect.Min, ax.HoverRect.Max, ax.Held ? ax.ColorAct : ax.ColorHov);
else if (ax.ColorHiLi != IM_COL32_BLACK_TRANS) {
DrawList.AddRectFilled(ax.HoverRect.Min, ax.HoverRect.Max, ax.ColorHiLi);
ax.ColorHiLi = IM_COL32_BLACK_TRANS;
}
else if (ax.ColorBg != IM_COL32_BLACK_TRANS) {
DrawList.AddRectFilled(ax.HoverRect.Min, ax.HoverRect.Max, ax.ColorBg);
}
const ImPlotTicker& tkr = ax.Ticker;
const bool opp = ax.IsOpposite();
if (ax.HasLabel()) {
const char* label = plot.GetAxisLabel(ax);
const ImVec2 label_size = CalcTextSizeVertical(label);
const float label_offset = (ax.HasTickLabels() ? tkr.MaxSize.x + gp.Style.LabelPadding.x : 0.0f)
+ gp.Style.LabelPadding.x;
const ImVec2 label_pos(opp ? ax.Datum1 + label_offset : ax.Datum1 - label_offset - label_size.x,
plot.PlotRect.GetCenter().y + label_size.y * 0.5f);
AddTextVertical(&DrawList, label_pos, ax.ColorTxt, label);
}
if (ax.HasTickLabels()) {
for (int j = 0; j < tkr.TickCount(); ++j) {
const ImPlotTick& tk = tkr.Ticks[j];
const float datum = ax.Datum1 + (opp ? gp.Style.LabelPadding.x : (-gp.Style.LabelPadding.x - tk.LabelSize.x));
if (tk.ShowLabel && tk.PixelPos >= plot.PlotRect.Min.y - 1 && tk.PixelPos <= plot.PlotRect.Max.y + 1) {
ImVec2 start(datum, tk.PixelPos - 0.5f * tk.LabelSize.y);
DrawList.AddText(start, ax.ColorTxt, tkr.GetText(j));
}
}
}
}
// clear legend (TODO: put elsewhere)
plot.Items.Legend.Reset();
// push ID to set item hashes (NB: !!!THIS PROBABLY NEEDS TO BE IN BEGIN PLOT!!!!)
ImGui::PushOverrideID(gp.CurrentItems->ID);
}
//-----------------------------------------------------------------------------
// EndPlot()
//-----------------------------------------------------------------------------
void EndPlot() {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "Mismatched BeginPlot()/EndPlot()!");
SetupLock();
ImPlotContext& gp = *GImPlot;
ImGuiContext &G = *GImGui;
ImPlotPlot &plot = *gp.CurrentPlot;
ImGuiWindow * Window = G.CurrentWindow;
ImDrawList & DrawList = *Window->DrawList;
const ImGuiIO & IO = ImGui::GetIO();
// FINAL RENDER -----------------------------------------------------------
const bool render_border = gp.Style.PlotBorderSize > 0 && gp.Style.Colors[ImPlotCol_PlotBorder].w > 0;
const bool any_x_held = plot.Held || AnyAxesHeld(&plot.Axes[ImAxis_X1], IMPLOT_NUM_X_AXES);
const bool any_y_held = plot.Held || AnyAxesHeld(&plot.Axes[ImAxis_Y1], IMPLOT_NUM_Y_AXES);
ImGui::PushClipRect(plot.FrameRect.Min, plot.FrameRect.Max, true);
// render grid (foreground)
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (x_axis.Enabled && x_axis.HasGridLines() && x_axis.IsForeground())
RenderGridLinesX(DrawList, x_axis.Ticker, plot.PlotRect, x_axis.ColorMaj, x_axis.ColorMin, gp.Style.MajorGridSize.x, gp.Style.MinorGridSize.x);
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (y_axis.Enabled && y_axis.HasGridLines() && y_axis.IsForeground())
RenderGridLinesY(DrawList, y_axis.Ticker, plot.PlotRect, y_axis.ColorMaj, y_axis.ColorMin, gp.Style.MajorGridSize.y, gp.Style.MinorGridSize.y);
}
// render title
if (plot.HasTitle()) {
ImU32 col = GetStyleColorU32(ImPlotCol_TitleText);
AddTextCentered(&DrawList,ImVec2(plot.PlotRect.GetCenter().x, plot.CanvasRect.Min.y),col,plot.GetTitle());
}
// render x ticks
int count_B = 0, count_T = 0;
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
const ImPlotAxis& ax = plot.XAxis(i);
if (!ax.Enabled)
continue;
const ImPlotTicker& tkr = ax.Ticker;
const bool opp = ax.IsOpposite();
const bool aux = ((opp && count_T > 0)||(!opp && count_B > 0));
if (ax.HasTickMarks()) {
const float direction = opp ? 1.0f : -1.0f;
for (int j = 0; j < tkr.TickCount(); ++j) {
const ImPlotTick& tk = tkr.Ticks[j];
if (tk.Level != 0 || tk.PixelPos < plot.PlotRect.Min.x || tk.PixelPos > plot.PlotRect.Max.x)
continue;
const ImVec2 start(tk.PixelPos, ax.Datum1);
const float len = (!aux && tk.Major) ? gp.Style.MajorTickLen.x : gp.Style.MinorTickLen.x;
const float thk = (!aux && tk.Major) ? gp.Style.MajorTickSize.x : gp.Style.MinorTickSize.x;
DrawList.AddLine(start, start + ImVec2(0,direction*len), ax.ColorTick, thk);
}
if (aux || !render_border)
DrawList.AddLine(ImVec2(plot.PlotRect.Min.x,ax.Datum1), ImVec2(plot.PlotRect.Max.x,ax.Datum1), ax.ColorTick, gp.Style.MinorTickSize.x);
}
count_B += !opp;
count_T += opp;
}
// render y ticks
int count_L = 0, count_R = 0;
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
const ImPlotAxis& ax = plot.YAxis(i);
if (!ax.Enabled)
continue;
const ImPlotTicker& tkr = ax.Ticker;
const bool opp = ax.IsOpposite();
const bool aux = ((opp && count_R > 0)||(!opp && count_L > 0));
if (ax.HasTickMarks()) {
const float direction = opp ? -1.0f : 1.0f;
for (int j = 0; j < tkr.TickCount(); ++j) {
const ImPlotTick& tk = tkr.Ticks[j];
if (tk.Level != 0 || tk.PixelPos < plot.PlotRect.Min.y || tk.PixelPos > plot.PlotRect.Max.y)
continue;
const ImVec2 start(ax.Datum1, tk.PixelPos);
const float len = (!aux && tk.Major) ? gp.Style.MajorTickLen.y : gp.Style.MinorTickLen.y;
const float thk = (!aux && tk.Major) ? gp.Style.MajorTickSize.y : gp.Style.MinorTickSize.y;
DrawList.AddLine(start, start + ImVec2(direction*len,0), ax.ColorTick, thk);
}
if (aux || !render_border)
DrawList.AddLine(ImVec2(ax.Datum1, plot.PlotRect.Min.y), ImVec2(ax.Datum1, plot.PlotRect.Max.y), ax.ColorTick, gp.Style.MinorTickSize.y);
}
count_L += !opp;
count_R += opp;
}
ImGui::PopClipRect();
// render annotations
PushPlotClipRect();
for (int i = 0; i < gp.Annotations.Size; ++i) {
const char* txt = gp.Annotations.GetText(i);
ImPlotAnnotation& an = gp.Annotations.Annotations[i];
const ImVec2 txt_size = ImGui::CalcTextSize(txt);
const ImVec2 size = txt_size + gp.Style.AnnotationPadding * 2;
ImVec2 pos = an.Pos;
if (an.Offset.x == 0)
pos.x -= size.x / 2;
else if (an.Offset.x > 0)
pos.x += an.Offset.x;
else
pos.x -= size.x - an.Offset.x;
if (an.Offset.y == 0)
pos.y -= size.y / 2;
else if (an.Offset.y > 0)
pos.y += an.Offset.y;
else
pos.y -= size.y - an.Offset.y;
if (an.Clamp)
pos = ClampLabelPos(pos, size, plot.PlotRect.Min, plot.PlotRect.Max);
ImRect rect(pos,pos+size);
if (an.Offset.x != 0 || an.Offset.y != 0) {
ImVec2 corners[4] = {rect.GetTL(), rect.GetTR(), rect.GetBR(), rect.GetBL()};
int min_corner = 0;
float min_len = FLT_MAX;
for (int c = 0; c < 4; ++c) {
float len = ImLengthSqr(an.Pos - corners[c]);
if (len < min_len) {
min_corner = c;
min_len = len;
}
}
DrawList.AddLine(an.Pos, corners[min_corner], an.ColorBg);
}
DrawList.AddRectFilled(rect.Min, rect.Max, an.ColorBg);
DrawList.AddText(pos + gp.Style.AnnotationPadding, an.ColorFg, txt);
}
// render selection
if (plot.Selected)
RenderSelectionRect(DrawList, plot.SelectRect.Min + plot.PlotRect.Min, plot.SelectRect.Max + plot.PlotRect.Min, GetStyleColorVec4(ImPlotCol_Selection));
// render crosshairs
if (ImHasFlag(plot.Flags, ImPlotFlags_Crosshairs) && plot.Hovered && !(any_x_held || any_y_held) && !plot.Selecting && !plot.Items.Legend.Hovered) {
ImGui::SetMouseCursor(ImGuiMouseCursor_None);
ImVec2 xy = IO.MousePos;
ImVec2 h1(plot.PlotRect.Min.x, xy.y);
ImVec2 h2(xy.x - 5, xy.y);
ImVec2 h3(xy.x + 5, xy.y);
ImVec2 h4(plot.PlotRect.Max.x, xy.y);
ImVec2 v1(xy.x, plot.PlotRect.Min.y);
ImVec2 v2(xy.x, xy.y - 5);
ImVec2 v3(xy.x, xy.y + 5);
ImVec2 v4(xy.x, plot.PlotRect.Max.y);
ImU32 col = GetStyleColorU32(ImPlotCol_Crosshairs);
DrawList.AddLine(h1, h2, col);
DrawList.AddLine(h3, h4, col);
DrawList.AddLine(v1, v2, col);
DrawList.AddLine(v3, v4, col);
}
// render mouse pos
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoMouseText) && (plot.Hovered || ImHasFlag(plot.MouseTextFlags, ImPlotMouseTextFlags_ShowAlways))) {
const bool no_aux = ImHasFlag(plot.MouseTextFlags, ImPlotMouseTextFlags_NoAuxAxes);
const bool no_fmt = ImHasFlag(plot.MouseTextFlags, ImPlotMouseTextFlags_NoFormat);
ImGuiTextBuffer& builder = gp.MousePosStringBuilder;
builder.Buf.shrink(0);
char buff[IMPLOT_LABEL_MAX_SIZE];
const int num_x = no_aux ? 1 : IMPLOT_NUM_X_AXES;
for (int i = 0; i < num_x; ++i) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (!x_axis.Enabled)
continue;
if (i > 0)
builder.append(", (");
double v = x_axis.PixelsToPlot(IO.MousePos.x);
if (no_fmt)
Formatter_Default(v,buff,IMPLOT_LABEL_MAX_SIZE,(void*)IMPLOT_LABEL_FORMAT);
else
LabelAxisValue(x_axis,v,buff,IMPLOT_LABEL_MAX_SIZE,true);
builder.append(buff);
if (i > 0)
builder.append(")");
}
builder.append(", ");
const int num_y = no_aux ? 1 : IMPLOT_NUM_Y_AXES;
for (int i = 0; i < num_y; ++i) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (!y_axis.Enabled)
continue;
if (i > 0)
builder.append(", (");
double v = y_axis.PixelsToPlot(IO.MousePos.y);
if (no_fmt)
Formatter_Default(v,buff,IMPLOT_LABEL_MAX_SIZE,(void*)IMPLOT_LABEL_FORMAT);
else
LabelAxisValue(y_axis,v,buff,IMPLOT_LABEL_MAX_SIZE,true);
builder.append(buff);
if (i > 0)
builder.append(")");
}
if (!builder.empty()) {
const ImVec2 size = ImGui::CalcTextSize(builder.c_str());
const ImVec2 pos = GetLocationPos(plot.PlotRect, size, plot.MouseTextLocation, gp.Style.MousePosPadding);
DrawList.AddText(pos, GetStyleColorU32(ImPlotCol_InlayText), builder.c_str());
}
}
PopPlotClipRect();
// axis side switch
if (!plot.Held) {
ImVec2 mouse_pos = ImGui::GetIO().MousePos;
ImRect trigger_rect = plot.PlotRect;
trigger_rect.Expand(-10);
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (ImHasFlag(x_axis.Flags, ImPlotAxisFlags_NoSideSwitch))
continue;
if (x_axis.Held && plot.PlotRect.Contains(mouse_pos)) {
const bool opp = ImHasFlag(x_axis.Flags, ImPlotAxisFlags_Opposite);
if (!opp) {
ImRect rect(plot.PlotRect.Min.x - 5, plot.PlotRect.Min.y - 5,
plot.PlotRect.Max.x + 5, plot.PlotRect.Min.y + 5);
if (mouse_pos.y < plot.PlotRect.Max.y - 10)
DrawList.AddRectFilled(rect.Min, rect.Max, x_axis.ColorHov);
if (rect.Contains(mouse_pos))
x_axis.Flags |= ImPlotAxisFlags_Opposite;
}
else {
ImRect rect(plot.PlotRect.Min.x - 5, plot.PlotRect.Max.y - 5,
plot.PlotRect.Max.x + 5, plot.PlotRect.Max.y + 5);
if (mouse_pos.y > plot.PlotRect.Min.y + 10)
DrawList.AddRectFilled(rect.Min, rect.Max, x_axis.ColorHov);
if (rect.Contains(mouse_pos))
x_axis.Flags &= ~ImPlotAxisFlags_Opposite;
}
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (ImHasFlag(y_axis.Flags, ImPlotAxisFlags_NoSideSwitch))
continue;
if (y_axis.Held && plot.PlotRect.Contains(mouse_pos)) {
const bool opp = ImHasFlag(y_axis.Flags, ImPlotAxisFlags_Opposite);
if (!opp) {
ImRect rect(plot.PlotRect.Max.x - 5, plot.PlotRect.Min.y - 5,
plot.PlotRect.Max.x + 5, plot.PlotRect.Max.y + 5);
if (mouse_pos.x > plot.PlotRect.Min.x + 10)
DrawList.AddRectFilled(rect.Min, rect.Max, y_axis.ColorHov);
if (rect.Contains(mouse_pos))
y_axis.Flags |= ImPlotAxisFlags_Opposite;
}
else {
ImRect rect(plot.PlotRect.Min.x - 5, plot.PlotRect.Min.y - 5,
plot.PlotRect.Min.x + 5, plot.PlotRect.Max.y + 5);
if (mouse_pos.x < plot.PlotRect.Max.x - 10)
DrawList.AddRectFilled(rect.Min, rect.Max, y_axis.ColorHov);
if (rect.Contains(mouse_pos))
y_axis.Flags &= ~ImPlotAxisFlags_Opposite;
}
}
}
}
// reset legend hovers
plot.Items.Legend.Hovered = false;
for (int i = 0; i < plot.Items.GetItemCount(); ++i)
plot.Items.GetItemByIndex(i)->LegendHovered = false;
// render legend
if (!ImHasFlag(plot.Flags, ImPlotFlags_NoLegend) && plot.Items.GetLegendCount() > 0) {
ImPlotLegend& legend = plot.Items.Legend;
const bool legend_out = ImHasFlag(legend.Flags, ImPlotLegendFlags_Outside);
const bool legend_horz = ImHasFlag(legend.Flags, ImPlotLegendFlags_Horizontal);
const ImVec2 legend_size = CalcLegendSize(plot.Items, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, !legend_horz);
const ImVec2 legend_pos = GetLocationPos(legend_out ? plot.FrameRect : plot.PlotRect,
legend_size,
legend.Location,
legend_out ? gp.Style.PlotPadding : gp.Style.LegendPadding);
legend.Rect = ImRect(legend_pos, legend_pos + legend_size);
// test hover
legend.Hovered = ImGui::IsWindowHovered() && legend.Rect.Contains(IO.MousePos);
if (legend_out)
ImGui::PushClipRect(plot.FrameRect.Min, plot.FrameRect.Max, true);
else
PushPlotClipRect();
ImU32 col_bg = GetStyleColorU32(ImPlotCol_LegendBg);
ImU32 col_bd = GetStyleColorU32(ImPlotCol_LegendBorder);
DrawList.AddRectFilled(legend.Rect.Min, legend.Rect.Max, col_bg);
DrawList.AddRect(legend.Rect.Min, legend.Rect.Max, col_bd);
bool legend_contextable = ShowLegendEntries(plot.Items, legend.Rect, legend.Hovered, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, !legend_horz, DrawList)
&& !ImHasFlag(legend.Flags, ImPlotLegendFlags_NoMenus);
// main ctx menu
if (gp.OpenContextThisFrame && legend_contextable && !ImHasFlag(plot.Flags, ImPlotFlags_NoMenus))
ImGui::OpenPopup("##LegendContext");
ImGui::PopClipRect();
if (ImGui::BeginPopup("##LegendContext")) {
ImGui::Text("Legend"); ImGui::Separator();
if (ShowLegendContextMenu(legend, !ImHasFlag(plot.Flags, ImPlotFlags_NoLegend)))
ImFlipFlag(plot.Flags, ImPlotFlags_NoLegend);
ImGui::EndPopup();
}
}
else {
plot.Items.Legend.Rect = ImRect();
}
// render border
if (render_border)
DrawList.AddRect(plot.PlotRect.Min, plot.PlotRect.Max, GetStyleColorU32(ImPlotCol_PlotBorder), 0, ImDrawFlags_RoundCornersAll, gp.Style.PlotBorderSize);
// render tags
for (int i = 0; i < gp.Tags.Size; ++i) {
ImPlotTag& tag = gp.Tags.Tags[i];
ImPlotAxis& axis = plot.Axes[tag.Axis];
if (!axis.Enabled || !axis.Range.Contains(tag.Value))
continue;
const char* txt = gp.Tags.GetText(i);
ImVec2 text_size = ImGui::CalcTextSize(txt);
ImVec2 size = text_size + gp.Style.AnnotationPadding * 2;
ImVec2 pos;
axis.Ticker.OverrideSizeLate(size);
float pix = IM_ROUND(axis.PlotToPixels(tag.Value));
if (axis.Vertical) {
if (axis.IsOpposite()) {
pos = ImVec2(axis.Datum1 + gp.Style.LabelPadding.x, pix - size.y * 0.5f);
DrawList.AddTriangleFilled(ImVec2(axis.Datum1,pix), pos, pos + ImVec2(0,size.y), tag.ColorBg);
}
else {
pos = ImVec2(axis.Datum1 - size.x - gp.Style.LabelPadding.x, pix - size.y * 0.5f);
DrawList.AddTriangleFilled(pos + ImVec2(size.x,0), ImVec2(axis.Datum1,pix), pos+size, tag.ColorBg);
}
}
else {
if (axis.IsOpposite()) {
pos = ImVec2(pix - size.x * 0.5f, axis.Datum1 - size.y - gp.Style.LabelPadding.y );
DrawList.AddTriangleFilled(pos + ImVec2(0,size.y), pos + size, ImVec2(pix,axis.Datum1), tag.ColorBg);
}
else {
pos = ImVec2(pix - size.x * 0.5f, axis.Datum1 + gp.Style.LabelPadding.y);
DrawList.AddTriangleFilled(pos, ImVec2(pix,axis.Datum1), pos + ImVec2(size.x, 0), tag.ColorBg);
}
}
DrawList.AddRectFilled(pos,pos+size,tag.ColorBg);
DrawList.AddText(pos+gp.Style.AnnotationPadding,tag.ColorFg,txt);
}
// FIT DATA --------------------------------------------------------------
const bool axis_equal = ImHasFlag(plot.Flags, ImPlotFlags_Equal);
if (plot.FitThisFrame) {
for (int i = 0; i < IMPLOT_NUM_X_AXES; i++) {
ImPlotAxis& x_axis = plot.XAxis(i);
if (x_axis.FitThisFrame) {
x_axis.ApplyFit(gp.Style.FitPadding.x);
if (axis_equal && x_axis.OrthoAxis != NULL) {
double aspect = x_axis.GetAspect();
ImPlotAxis& y_axis = *x_axis.OrthoAxis;
if (y_axis.FitThisFrame) {
y_axis.ApplyFit(gp.Style.FitPadding.y);
y_axis.FitThisFrame = false;
aspect = ImMax(aspect, y_axis.GetAspect());
}
x_axis.SetAspect(aspect);
y_axis.SetAspect(aspect);
}
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; i++) {
ImPlotAxis& y_axis = plot.YAxis(i);
if (y_axis.FitThisFrame) {
y_axis.ApplyFit(gp.Style.FitPadding.y);
if (axis_equal && y_axis.OrthoAxis != NULL) {
double aspect = y_axis.GetAspect();
ImPlotAxis& x_axis = *y_axis.OrthoAxis;
if (x_axis.FitThisFrame) {
x_axis.ApplyFit(gp.Style.FitPadding.x);
x_axis.FitThisFrame = false;
aspect = ImMax(x_axis.GetAspect(), aspect);
}
x_axis.SetAspect(aspect);
y_axis.SetAspect(aspect);
}
}
}
plot.FitThisFrame = false;
}
// CONTEXT MENUS -----------------------------------------------------------
ImGui::PushOverrideID(plot.ID);
const bool can_ctx = gp.OpenContextThisFrame &&
!ImHasFlag(plot.Flags, ImPlotFlags_NoMenus) &&
!plot.Items.Legend.Hovered;
// main ctx menu
if (can_ctx && plot.Hovered)
ImGui::OpenPopup("##PlotContext");
if (ImGui::BeginPopup("##PlotContext")) {
ShowPlotContextMenu(plot);
ImGui::EndPopup();
}
// axes ctx menus
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
ImGui::PushID(i);
ImPlotAxis& x_axis = plot.XAxis(i);
if (can_ctx && x_axis.Hovered && x_axis.HasMenus())
ImGui::OpenPopup("##XContext");
if (ImGui::BeginPopup("##XContext")) {
ImGui::Text(x_axis.HasLabel() ? plot.GetAxisLabel(x_axis) : i == 0 ? "X-Axis" : "X-Axis %d", i + 1);
ImGui::Separator();
ShowAxisContextMenu(x_axis, axis_equal ? x_axis.OrthoAxis : NULL, true);
ImGui::EndPopup();
}
ImGui::PopID();
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i) {
ImGui::PushID(i);
ImPlotAxis& y_axis = plot.YAxis(i);
if (can_ctx && y_axis.Hovered && y_axis.HasMenus())
ImGui::OpenPopup("##YContext");
if (ImGui::BeginPopup("##YContext")) {
ImGui::Text(y_axis.HasLabel() ? plot.GetAxisLabel(y_axis) : i == 0 ? "Y-Axis" : "Y-Axis %d", i + 1);
ImGui::Separator();
ShowAxisContextMenu(y_axis, axis_equal ? y_axis.OrthoAxis : NULL, false);
ImGui::EndPopup();
}
ImGui::PopID();
}
ImGui::PopID();
// LINKED AXES ------------------------------------------------------------
for (int i = 0; i < ImAxis_COUNT; ++i)
plot.Axes[i].PushLinks();
// CLEANUP ----------------------------------------------------------------
// remove items
if (gp.CurrentItems == &plot.Items)
gp.CurrentItems = NULL;
// reset the plot items for the next frame
for (int i = 0; i < plot.Items.GetItemCount(); ++i) {
plot.Items.GetItemByIndex(i)->SeenThisFrame = false;
}
// mark the plot as initialized, i.e. having made it through one frame completely
plot.Initialized = true;
// Pop ImGui::PushID at the end of BeginPlot
ImGui::PopID();
// Reset context for next plot
ResetCtxForNextPlot(GImPlot);
// setup next subplot
if (gp.CurrentSubplot != NULL) {
ImGui::PopID();
SubplotNextCell();
}
}
//-----------------------------------------------------------------------------
// BEGIN/END SUBPLOT
//-----------------------------------------------------------------------------
static const float SUBPLOT_BORDER_SIZE = 1.0f;
static const float SUBPLOT_SPLITTER_HALF_THICKNESS = 4.0f;
static const float SUBPLOT_SPLITTER_FEEDBACK_TIMER = 0.06f;
void SubplotSetCell(int row, int col) {
ImPlotContext& gp = *GImPlot;
ImPlotSubplot& subplot = *gp.CurrentSubplot;
if (row >= subplot.Rows || col >= subplot.Cols)
return;
float xoff = 0;
float yoff = 0;
for (int c = 0; c < col; ++c)
xoff += subplot.ColRatios[c];
for (int r = 0; r < row; ++r)
yoff += subplot.RowRatios[r];
const ImVec2 grid_size = subplot.GridRect.GetSize();
ImVec2 cpos = subplot.GridRect.Min + ImVec2(xoff*grid_size.x,yoff*grid_size.y);
cpos.x = IM_ROUND(cpos.x);
cpos.y = IM_ROUND(cpos.y);
ImGui::GetCurrentWindow()->DC.CursorPos = cpos;
// set cell size
subplot.CellSize.x = IM_ROUND(subplot.GridRect.GetWidth() * subplot.ColRatios[col]);
subplot.CellSize.y = IM_ROUND(subplot.GridRect.GetHeight() * subplot.RowRatios[row]);
// setup links
const bool lx = ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkAllX);
const bool ly = ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkAllY);
const bool lr = ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkRows);
const bool lc = ImHasFlag(subplot.Flags, ImPlotSubplotFlags_LinkCols);
SetNextAxisLinks(ImAxis_X1, lx ? &subplot.ColLinkData[0].Min : lc ? &subplot.ColLinkData[col].Min : NULL,
lx ? &subplot.ColLinkData[0].Max : lc ? &subplot.ColLinkData[col].Max : NULL);
SetNextAxisLinks(ImAxis_Y1, ly ? &subplot.RowLinkData[0].Min : lr ? &subplot.RowLinkData[row].Min : NULL,
ly ? &subplot.RowLinkData[0].Max : lr ? &subplot.RowLinkData[row].Max : NULL);
// setup alignment
if (!ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoAlign)) {
gp.CurrentAlignmentH = &subplot.RowAlignmentData[row];
gp.CurrentAlignmentV = &subplot.ColAlignmentData[col];
}
// set idx
if (ImHasFlag(subplot.Flags, ImPlotSubplotFlags_ColMajor))
subplot.CurrentIdx = col * subplot.Rows + row;
else
subplot.CurrentIdx = row * subplot.Cols + col;
}
void SubplotSetCell(int idx) {
ImPlotContext& gp = *GImPlot;
ImPlotSubplot& subplot = *gp.CurrentSubplot;
if (idx >= subplot.Rows * subplot.Cols)
return;
int row = 0, col = 0;
if (ImHasFlag(subplot.Flags, ImPlotSubplotFlags_ColMajor)) {
row = idx % subplot.Rows;
col = idx / subplot.Rows;
}
else {
row = idx / subplot.Cols;
col = idx % subplot.Cols;
}
return SubplotSetCell(row, col);
}
void SubplotNextCell() {
ImPlotContext& gp = *GImPlot;
ImPlotSubplot& subplot = *gp.CurrentSubplot;
SubplotSetCell(++subplot.CurrentIdx);
}
bool BeginSubplots(const char* title, int rows, int cols, const ImVec2& size, ImPlotSubplotFlags flags, float* row_sizes, float* col_sizes) {
IM_ASSERT_USER_ERROR(rows > 0 && cols > 0, "Invalid sizing arguments!");
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentSubplot == NULL, "Mismatched BeginSubplots()/EndSubplots()!");
ImPlotContext& gp = *GImPlot;
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems)
return false;
const ImGuiID ID = Window->GetID(title);
bool just_created = gp.Subplots.GetByKey(ID) == NULL;
gp.CurrentSubplot = gp.Subplots.GetOrAddByKey(ID);
ImPlotSubplot& subplot = *gp.CurrentSubplot;
subplot.ID = ID;
subplot.Items.ID = ID - 1;
subplot.HasTitle = ImGui::FindRenderedTextEnd(title, NULL) != title;
// push ID
ImGui::PushID(ID);
if (just_created)
subplot.Flags = flags;
else if (flags != subplot.PreviousFlags)
subplot.Flags = flags;
subplot.PreviousFlags = flags;
// check for change in rows and cols
if (subplot.Rows != rows || subplot.Cols != cols) {
subplot.RowAlignmentData.resize(rows);
subplot.RowLinkData.resize(rows);
subplot.RowRatios.resize(rows);
for (int r = 0; r < rows; ++r) {
subplot.RowAlignmentData[r].Reset();
subplot.RowLinkData[r] = ImPlotRange(0,1);
subplot.RowRatios[r] = 1.0f / rows;
}
subplot.ColAlignmentData.resize(cols);
subplot.ColLinkData.resize(cols);
subplot.ColRatios.resize(cols);
for (int c = 0; c < cols; ++c) {
subplot.ColAlignmentData[c].Reset();
subplot.ColLinkData[c] = ImPlotRange(0,1);
subplot.ColRatios[c] = 1.0f / cols;
}
}
// check incoming size requests
float row_sum = 0, col_sum = 0;
if (row_sizes != NULL) {
row_sum = ImSum(row_sizes, rows);
for (int r = 0; r < rows; ++r)
subplot.RowRatios[r] = row_sizes[r] / row_sum;
}
if (col_sizes != NULL) {
col_sum = ImSum(col_sizes, cols);
for (int c = 0; c < cols; ++c)
subplot.ColRatios[c] = col_sizes[c] / col_sum;
}
subplot.Rows = rows;
subplot.Cols = cols;
// calc plot frame sizes
ImVec2 title_size(0.0f, 0.0f);
if (!ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoTitle))
title_size = ImGui::CalcTextSize(title, NULL, true);
const float pad_top = title_size.x > 0.0f ? title_size.y + gp.Style.LabelPadding.y : 0;
const ImVec2 half_pad = gp.Style.PlotPadding/2;
const ImVec2 frame_size = ImGui::CalcItemSize(size, gp.Style.PlotDefaultSize.x, gp.Style.PlotDefaultSize.y);
subplot.FrameRect = ImRect(Window->DC.CursorPos, Window->DC.CursorPos + frame_size);
subplot.GridRect.Min = subplot.FrameRect.Min + half_pad + ImVec2(0,pad_top);
subplot.GridRect.Max = subplot.FrameRect.Max - half_pad;
subplot.FrameHovered = subplot.FrameRect.Contains(ImGui::GetMousePos()) && ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows);
// outside legend adjustments (TODO: make function)
const bool share_items = ImHasFlag(subplot.Flags, ImPlotSubplotFlags_ShareItems);
if (share_items)
gp.CurrentItems = &subplot.Items;
if (share_items && !ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoLegend) && subplot.Items.GetLegendCount() > 0) {
ImPlotLegend& legend = subplot.Items.Legend;
const bool horz = ImHasFlag(legend.Flags, ImPlotLegendFlags_Horizontal);
const ImVec2 legend_size = CalcLegendSize(subplot.Items, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, !horz);
const bool west = ImHasFlag(legend.Location, ImPlotLocation_West) && !ImHasFlag(legend.Location, ImPlotLocation_East);
const bool east = ImHasFlag(legend.Location, ImPlotLocation_East) && !ImHasFlag(legend.Location, ImPlotLocation_West);
const bool north = ImHasFlag(legend.Location, ImPlotLocation_North) && !ImHasFlag(legend.Location, ImPlotLocation_South);
const bool south = ImHasFlag(legend.Location, ImPlotLocation_South) && !ImHasFlag(legend.Location, ImPlotLocation_North);
if ((west && !horz) || (west && horz && !north && !south))
subplot.GridRect.Min.x += (legend_size.x + gp.Style.LegendPadding.x);
if ((east && !horz) || (east && horz && !north && !south))
subplot.GridRect.Max.x -= (legend_size.x + gp.Style.LegendPadding.x);
if ((north && horz) || (north && !horz && !west && !east))
subplot.GridRect.Min.y += (legend_size.y + gp.Style.LegendPadding.y);
if ((south && horz) || (south && !horz && !west && !east))
subplot.GridRect.Max.y -= (legend_size.y + gp.Style.LegendPadding.y);
}
// render single background frame
ImGui::RenderFrame(subplot.FrameRect.Min, subplot.FrameRect.Max, GetStyleColorU32(ImPlotCol_FrameBg), true, ImGui::GetStyle().FrameRounding);
// render title
if (title_size.x > 0.0f && !ImHasFlag(subplot.Flags, ImPlotFlags_NoTitle)) {
const ImU32 col = GetStyleColorU32(ImPlotCol_TitleText);
AddTextCentered(ImGui::GetWindowDrawList(),ImVec2(subplot.GridRect.GetCenter().x, subplot.GridRect.Min.y - pad_top + half_pad.y),col,title);
}
// render splitters
if (!ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoResize)) {
ImDrawList& DrawList = *ImGui::GetWindowDrawList();
const ImU32 hov_col = ImGui::ColorConvertFloat4ToU32(GImGui->Style.Colors[ImGuiCol_SeparatorHovered]);
const ImU32 act_col = ImGui::ColorConvertFloat4ToU32(GImGui->Style.Colors[ImGuiCol_SeparatorActive]);
float xpos = subplot.GridRect.Min.x;
float ypos = subplot.GridRect.Min.y;
int separator = 1;
// bool pass = false;
for (int r = 0; r < subplot.Rows-1; ++r) {
ypos += subplot.RowRatios[r] * subplot.GridRect.GetHeight();
const ImGuiID sep_id = subplot.ID + separator;
ImGui::KeepAliveID(sep_id);
const ImRect sep_bb = ImRect(subplot.GridRect.Min.x, ypos-SUBPLOT_SPLITTER_HALF_THICKNESS, subplot.GridRect.Max.x, ypos+SUBPLOT_SPLITTER_HALF_THICKNESS);
bool sep_hov = false, sep_hld = false;
const bool sep_clk = ImGui::ButtonBehavior(sep_bb, sep_id, &sep_hov, &sep_hld, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap | ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnDoubleClick);
if ((sep_hov && G.HoveredIdTimer > SUBPLOT_SPLITTER_FEEDBACK_TIMER) || sep_hld) {
if (sep_clk && ImGui::IsMouseDoubleClicked(0)) {
float p = (subplot.RowRatios[r] + subplot.RowRatios[r+1])/2;
subplot.RowRatios[r] = subplot.RowRatios[r+1] = p;
}
if (sep_clk) {
subplot.TempSizes[0] = subplot.RowRatios[r];
subplot.TempSizes[1] = subplot.RowRatios[r+1];
}
if (sep_hld) {
float dp = ImGui::GetMouseDragDelta(0).y / subplot.GridRect.GetHeight();
if (subplot.TempSizes[0] + dp > 0.1f && subplot.TempSizes[1] - dp > 0.1f) {
subplot.RowRatios[r] = subplot.TempSizes[0] + dp;
subplot.RowRatios[r+1] = subplot.TempSizes[1] - dp;
}
}
DrawList.AddLine(ImVec2(IM_ROUND(subplot.GridRect.Min.x),IM_ROUND(ypos)),
ImVec2(IM_ROUND(subplot.GridRect.Max.x),IM_ROUND(ypos)),
sep_hld ? act_col : hov_col, SUBPLOT_BORDER_SIZE);
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS);
}
separator++;
}
for (int c = 0; c < subplot.Cols-1; ++c) {
xpos += subplot.ColRatios[c] * subplot.GridRect.GetWidth();
const ImGuiID sep_id = subplot.ID + separator;
ImGui::KeepAliveID(sep_id);
const ImRect sep_bb = ImRect(xpos-SUBPLOT_SPLITTER_HALF_THICKNESS, subplot.GridRect.Min.y, xpos+SUBPLOT_SPLITTER_HALF_THICKNESS, subplot.GridRect.Max.y);
bool sep_hov = false, sep_hld = false;
const bool sep_clk = ImGui::ButtonBehavior(sep_bb, sep_id, &sep_hov, &sep_hld, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap | ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnDoubleClick);
if ((sep_hov && G.HoveredIdTimer > SUBPLOT_SPLITTER_FEEDBACK_TIMER) || sep_hld) {
if (sep_clk && ImGui::IsMouseDoubleClicked(0)) {
float p = (subplot.ColRatios[c] + subplot.ColRatios[c+1])/2;
subplot.ColRatios[c] = subplot.ColRatios[c+1] = p;
}
if (sep_clk) {
subplot.TempSizes[0] = subplot.ColRatios[c];
subplot.TempSizes[1] = subplot.ColRatios[c+1];
}
if (sep_hld) {
float dp = ImGui::GetMouseDragDelta(0).x / subplot.GridRect.GetWidth();
if (subplot.TempSizes[0] + dp > 0.1f && subplot.TempSizes[1] - dp > 0.1f) {
subplot.ColRatios[c] = subplot.TempSizes[0] + dp;
subplot.ColRatios[c+1] = subplot.TempSizes[1] - dp;
}
}
DrawList.AddLine(ImVec2(IM_ROUND(xpos),IM_ROUND(subplot.GridRect.Min.y)),
ImVec2(IM_ROUND(xpos),IM_ROUND(subplot.GridRect.Max.y)),
sep_hld ? act_col : hov_col, SUBPLOT_BORDER_SIZE);
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW);
}
separator++;
}
}
// set outgoing sizes
if (row_sizes != NULL) {
for (int r = 0; r < rows; ++r)
row_sizes[r] = subplot.RowRatios[r] * row_sum;
}
if (col_sizes != NULL) {
for (int c = 0; c < cols; ++c)
col_sizes[c] = subplot.ColRatios[c] * col_sum;
}
// push styling
PushStyleColor(ImPlotCol_FrameBg, IM_COL32_BLACK_TRANS);
PushStyleVar(ImPlotStyleVar_PlotPadding, half_pad);
PushStyleVar(ImPlotStyleVar_PlotMinSize, ImVec2(0,0));
ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize,0);
// set initial cursor pos
Window->DC.CursorPos = subplot.GridRect.Min;
// begin alignments
for (int r = 0; r < subplot.Rows; ++r)
subplot.RowAlignmentData[r].Begin();
for (int c = 0; c < subplot.Cols; ++c)
subplot.ColAlignmentData[c].Begin();
// clear legend data
subplot.Items.Legend.Reset();
// Setup first subplot
SubplotSetCell(0,0);
return true;
}
void EndSubplots() {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentSubplot != NULL, "Mismatched BeginSubplots()/EndSubplots()!");
ImPlotContext& gp = *GImPlot;
ImPlotSubplot& subplot = *GImPlot->CurrentSubplot;
// set alignments
for (int r = 0; r < subplot.Rows; ++r)
subplot.RowAlignmentData[r].End();
for (int c = 0; c < subplot.Cols; ++c)
subplot.ColAlignmentData[c].End();
// pop styling
PopStyleColor();
PopStyleVar();
PopStyleVar();
ImGui::PopStyleVar();
// legend
subplot.Items.Legend.Hovered = false;
for (int i = 0; i < subplot.Items.GetItemCount(); ++i)
subplot.Items.GetItemByIndex(i)->LegendHovered = false;
// render legend
const bool share_items = ImHasFlag(subplot.Flags, ImPlotSubplotFlags_ShareItems);
ImDrawList& DrawList = *ImGui::GetWindowDrawList();
if (share_items && !ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoLegend) && subplot.Items.GetLegendCount() > 0) {
const bool legend_horz = ImHasFlag(subplot.Items.Legend.Flags, ImPlotLegendFlags_Horizontal);
const ImVec2 legend_size = CalcLegendSize(subplot.Items, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, !legend_horz);
const ImVec2 legend_pos = GetLocationPos(subplot.FrameRect, legend_size, subplot.Items.Legend.Location, gp.Style.PlotPadding);
subplot.Items.Legend.Rect = ImRect(legend_pos, legend_pos + legend_size);
subplot.Items.Legend.Hovered = subplot.FrameHovered && subplot.Items.Legend.Rect.Contains(ImGui::GetIO().MousePos);
ImGui::PushClipRect(subplot.FrameRect.Min, subplot.FrameRect.Max, true);
ImU32 col_bg = GetStyleColorU32(ImPlotCol_LegendBg);
ImU32 col_bd = GetStyleColorU32(ImPlotCol_LegendBorder);
DrawList.AddRectFilled(subplot.Items.Legend.Rect.Min, subplot.Items.Legend.Rect.Max, col_bg);
DrawList.AddRect(subplot.Items.Legend.Rect.Min, subplot.Items.Legend.Rect.Max, col_bd);
bool legend_contextable = ShowLegendEntries(subplot.Items, subplot.Items.Legend.Rect, subplot.Items.Legend.Hovered, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, !legend_horz, DrawList)
&& !ImHasFlag(subplot.Items.Legend.Flags, ImPlotLegendFlags_NoMenus);
if (legend_contextable && !ImHasFlag(subplot.Flags, ImPlotSubplotFlags_NoMenus) && ImGui::GetIO().MouseReleased[gp.InputMap.Menu])
ImGui::OpenPopup("##LegendContext");
ImGui::PopClipRect();
if (ImGui::BeginPopup("##LegendContext")) {
ImGui::Text("Legend"); ImGui::Separator();
if (ShowLegendContextMenu(subplot.Items.Legend, !ImHasFlag(subplot.Flags, ImPlotFlags_NoLegend)))
ImFlipFlag(subplot.Flags, ImPlotFlags_NoLegend);
ImGui::EndPopup();
}
}
else {
subplot.Items.Legend.Rect = ImRect();
}
// remove items
if (gp.CurrentItems == &subplot.Items)
gp.CurrentItems = NULL;
// reset the plot items for the next frame (TODO: put this elswhere)
for (int i = 0; i < subplot.Items.GetItemCount(); ++i) {
subplot.Items.GetItemByIndex(i)->SeenThisFrame = false;
}
// pop id
ImGui::PopID();
// set DC back correctly
GImGui->CurrentWindow->DC.CursorPos = subplot.FrameRect.Min;
ImGui::Dummy(subplot.FrameRect.GetSize());
ResetCtxForNextSubplot(GImPlot);
}
//-----------------------------------------------------------------------------
// [SECTION] Plot Utils
//-----------------------------------------------------------------------------
void SetAxis(ImAxis axis) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "SetAxis() needs to be called between BeginPlot() and EndPlot()!");
IM_ASSERT_USER_ERROR(axis >= ImAxis_X1 && axis < ImAxis_COUNT, "Axis index out of bounds!");
IM_ASSERT_USER_ERROR(gp.CurrentPlot->Axes[axis].Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
SetupLock();
if (axis < ImAxis_Y1)
gp.CurrentPlot->CurrentX = axis;
else
gp.CurrentPlot->CurrentY = axis;
}
void SetAxes(ImAxis x_idx, ImAxis y_idx) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "SetAxes() needs to be called between BeginPlot() and EndPlot()!");
IM_ASSERT_USER_ERROR(x_idx >= ImAxis_X1 && x_idx < ImAxis_Y1, "X-Axis index out of bounds!");
IM_ASSERT_USER_ERROR(y_idx >= ImAxis_Y1 && y_idx < ImAxis_COUNT, "Y-Axis index out of bounds!");
IM_ASSERT_USER_ERROR(gp.CurrentPlot->Axes[x_idx].Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
IM_ASSERT_USER_ERROR(gp.CurrentPlot->Axes[y_idx].Enabled, "Axis is not enabled! Did you forget to call SetupAxis()?");
SetupLock();
gp.CurrentPlot->CurrentX = x_idx;
gp.CurrentPlot->CurrentY = y_idx;
}
ImPlotPoint PixelsToPlot(float x, float y, ImAxis x_idx, ImAxis y_idx) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PixelsToPlot() needs to be called between BeginPlot() and EndPlot()!");
IM_ASSERT_USER_ERROR(x_idx == IMPLOT_AUTO || (x_idx >= ImAxis_X1 && x_idx < ImAxis_Y1), "X-Axis index out of bounds!");
IM_ASSERT_USER_ERROR(y_idx == IMPLOT_AUTO || (y_idx >= ImAxis_Y1 && y_idx < ImAxis_COUNT), "Y-Axis index out of bounds!");
SetupLock();
ImPlotPlot& plot = *gp.CurrentPlot;
ImPlotAxis& x_axis = x_idx == IMPLOT_AUTO ? plot.Axes[plot.CurrentX] : plot.Axes[x_idx];
ImPlotAxis& y_axis = y_idx == IMPLOT_AUTO ? plot.Axes[plot.CurrentY] : plot.Axes[y_idx];
return ImPlotPoint( x_axis.PixelsToPlot(x), y_axis.PixelsToPlot(y) );
}
ImPlotPoint PixelsToPlot(const ImVec2& pix, ImAxis x_idx, ImAxis y_idx) {
return PixelsToPlot(pix.x, pix.y, x_idx, y_idx);
}
ImVec2 PlotToPixels(double x, double y, ImAxis x_idx, ImAxis y_idx) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotToPixels() needs to be called between BeginPlot() and EndPlot()!");
IM_ASSERT_USER_ERROR(x_idx == IMPLOT_AUTO || (x_idx >= ImAxis_X1 && x_idx < ImAxis_Y1), "X-Axis index out of bounds!");
IM_ASSERT_USER_ERROR(y_idx == IMPLOT_AUTO || (y_idx >= ImAxis_Y1 && y_idx < ImAxis_COUNT), "Y-Axis index out of bounds!");
SetupLock();
ImPlotPlot& plot = *gp.CurrentPlot;
ImPlotAxis& x_axis = x_idx == IMPLOT_AUTO ? plot.Axes[plot.CurrentX] : plot.Axes[x_idx];
ImPlotAxis& y_axis = y_idx == IMPLOT_AUTO ? plot.Axes[plot.CurrentY] : plot.Axes[y_idx];
return ImVec2( x_axis.PlotToPixels(x), y_axis.PlotToPixels(y) );
}
ImVec2 PlotToPixels(const ImPlotPoint& plt, ImAxis x_idx, ImAxis y_idx) {
return PlotToPixels(plt.x, plt.y, x_idx, y_idx);
}
ImVec2 GetPlotPos() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotPos() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
return gp.CurrentPlot->PlotRect.Min;
}
ImVec2 GetPlotSize() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotSize() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
return gp.CurrentPlot->PlotRect.GetSize();
}
ImPlotPoint GetPlotMousePos(ImAxis x_idx, ImAxis y_idx) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "GetPlotMousePos() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
return PixelsToPlot(ImGui::GetMousePos(), x_idx, y_idx);
}
ImPlotRect GetPlotLimits(ImAxis x_idx, ImAxis y_idx) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotLimits() needs to be called between BeginPlot() and EndPlot()!");
IM_ASSERT_USER_ERROR(x_idx == IMPLOT_AUTO || (x_idx >= ImAxis_X1 && x_idx < ImAxis_Y1), "X-Axis index out of bounds!");
IM_ASSERT_USER_ERROR(y_idx == IMPLOT_AUTO || (y_idx >= ImAxis_Y1 && y_idx < ImAxis_COUNT), "Y-Axis index out of bounds!");
SetupLock();
ImPlotPlot& plot = *gp.CurrentPlot;
ImPlotAxis& x_axis = x_idx == IMPLOT_AUTO ? plot.Axes[plot.CurrentX] : plot.Axes[x_idx];
ImPlotAxis& y_axis = y_idx == IMPLOT_AUTO ? plot.Axes[plot.CurrentY] : plot.Axes[y_idx];
ImPlotRect limits;
limits.X = x_axis.Range;
limits.Y = y_axis.Range;
return limits;
}
bool IsPlotHovered() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotHovered() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
return gp.CurrentPlot->Hovered;
}
bool IsAxisHovered(ImAxis axis) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotXAxisHovered() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
return gp.CurrentPlot->Axes[axis].Hovered;
}
bool IsSubplotsHovered() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentSubplot != NULL, "IsSubplotsHovered() needs to be called between BeginSubplots() and EndSubplots()!");
return gp.CurrentSubplot->FrameHovered;
}
bool IsPlotSelected() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotSelected() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
return gp.CurrentPlot->Selected;
}
ImPlotRect GetPlotSelection(ImAxis x_idx, ImAxis y_idx) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotSelection() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
ImPlotPlot& plot = *gp.CurrentPlot;
if (!plot.Selected)
return ImPlotRect(0,0,0,0);
ImPlotPoint p1 = PixelsToPlot(plot.SelectRect.Min + plot.PlotRect.Min, x_idx, y_idx);
ImPlotPoint p2 = PixelsToPlot(plot.SelectRect.Max + plot.PlotRect.Min, x_idx, y_idx);
ImPlotRect result;
result.X.Min = ImMin(p1.x, p2.x);
result.X.Max = ImMax(p1.x, p2.x);
result.Y.Min = ImMin(p1.y, p2.y);
result.Y.Max = ImMax(p1.y, p2.y);
return result;
}
void CancelPlotSelection() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "CancelPlotSelection() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
ImPlotPlot& plot = *gp.CurrentPlot;
if (plot.Selected)
plot.Selected = plot.Selecting = false;
}
void HideNextItem(bool hidden, ImPlotCond cond) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.HasHidden = true;
gp.NextItemData.Hidden = hidden;
gp.NextItemData.HiddenCond = cond;
}
//-----------------------------------------------------------------------------
// [SECTION] Plot Tools
//-----------------------------------------------------------------------------
void Annotation(double x, double y, const ImVec4& col, const ImVec2& offset, bool clamp, bool round) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "Annotation() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
char x_buff[IMPLOT_LABEL_MAX_SIZE];
char y_buff[IMPLOT_LABEL_MAX_SIZE];
ImPlotAxis& x_axis = gp.CurrentPlot->Axes[gp.CurrentPlot->CurrentX];
ImPlotAxis& y_axis = gp.CurrentPlot->Axes[gp.CurrentPlot->CurrentY];
LabelAxisValue(x_axis, x, x_buff, sizeof(x_buff), round);
LabelAxisValue(y_axis, y, y_buff, sizeof(y_buff), round);
Annotation(x,y,col,offset,clamp,"%s, %s",x_buff,y_buff);
}
void AnnotationV(double x, double y, const ImVec4& col, const ImVec2& offset, bool clamp, const char* fmt, va_list args) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "Annotation() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
ImVec2 pos = PlotToPixels(x,y,IMPLOT_AUTO,IMPLOT_AUTO);
ImU32 bg = ImGui::GetColorU32(col);
ImU32 fg = col.w == 0 ? GetStyleColorU32(ImPlotCol_InlayText) : CalcTextColor(col);
gp.Annotations.AppendV(pos, offset, bg, fg, clamp, fmt, args);
}
void Annotation(double x, double y, const ImVec4& col, const ImVec2& offset, bool clamp, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
AnnotationV(x,y,col,offset,clamp,fmt,args);
va_end(args);
}
void TagV(ImAxis axis, double v, const ImVec4& col, const char* fmt, va_list args) {
ImPlotContext& gp = *GImPlot;
SetupLock();
ImU32 bg = ImGui::GetColorU32(col);
ImU32 fg = col.w == 0 ? GetStyleColorU32(ImPlotCol_AxisText) : CalcTextColor(col);
gp.Tags.AppendV(axis,v,bg,fg,fmt,args);
}
void Tag(ImAxis axis, double v, const ImVec4& col, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
TagV(axis,v,col,fmt,args);
va_end(args);
}
void Tag(ImAxis axis, double v, const ImVec4& color, bool round) {
ImPlotContext& gp = *GImPlot;
SetupLock();
char buff[IMPLOT_LABEL_MAX_SIZE];
ImPlotAxis& ax = gp.CurrentPlot->Axes[axis];
LabelAxisValue(ax, v, buff, sizeof(buff), round);
Tag(axis,v,color,"%s",buff);
}
IMPLOT_API void TagX(double x, const ImVec4& color, bool round) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "TagX() needs to be called between BeginPlot() and EndPlot()!");
Tag(GImPlot->CurrentPlot->CurrentX, x, color, round);
}
IMPLOT_API void TagX(double x, const ImVec4& color, const char* fmt, ...) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "TagX() needs to be called between BeginPlot() and EndPlot()!");
va_list args;
va_start(args, fmt);
TagV(GImPlot->CurrentPlot->CurrentX,x,color,fmt,args);
va_end(args);
}
IMPLOT_API void TagXV(double x, const ImVec4& color, const char* fmt, va_list args) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "TagX() needs to be called between BeginPlot() and EndPlot()!");
TagV(GImPlot->CurrentPlot->CurrentX, x, color, fmt, args);
}
IMPLOT_API void TagY(double y, const ImVec4& color, bool round) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "TagY() needs to be called between BeginPlot() and EndPlot()!");
Tag(GImPlot->CurrentPlot->CurrentY, y, color, round);
}
IMPLOT_API void TagY(double y, const ImVec4& color, const char* fmt, ...) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "TagY() needs to be called between BeginPlot() and EndPlot()!");
va_list args;
va_start(args, fmt);
TagV(GImPlot->CurrentPlot->CurrentY,y,color,fmt,args);
va_end(args);
}
IMPLOT_API void TagYV(double y, const ImVec4& color, const char* fmt, va_list args) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "TagY() needs to be called between BeginPlot() and EndPlot()!");
TagV(GImPlot->CurrentPlot->CurrentY, y, color, fmt, args);
}
static const float DRAG_GRAB_HALF_SIZE = 4.0f;
bool DragPoint(int n_id, double* x, double* y, const ImVec4& col, float radius, ImPlotDragToolFlags flags) {
ImGui::PushID("#IMPLOT_DRAG_POINT");
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "DragPoint() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
if (!ImHasFlag(flags,ImPlotDragToolFlags_NoFit) && FitThisFrame()) {
FitPoint(ImPlotPoint(*x,*y));
}
const bool input = !ImHasFlag(flags, ImPlotDragToolFlags_NoInputs);
const bool show_curs = !ImHasFlag(flags, ImPlotDragToolFlags_NoCursors);
const bool no_delay = !ImHasFlag(flags, ImPlotDragToolFlags_Delayed);
const float grab_half_size = ImMax(DRAG_GRAB_HALF_SIZE, radius);
const ImVec4 color = IsColorAuto(col) ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : col;
const ImU32 col32 = ImGui::ColorConvertFloat4ToU32(color);
ImVec2 pos = PlotToPixels(*x,*y,IMPLOT_AUTO,IMPLOT_AUTO);
const ImGuiID id = ImGui::GetCurrentWindow()->GetID(n_id);
ImRect rect(pos.x-grab_half_size,pos.y-grab_half_size,pos.x+grab_half_size,pos.y+grab_half_size);
bool hovered = false, held = false;
ImGui::KeepAliveID(id);
if (input)
ImGui::ButtonBehavior(rect,id,&hovered,&held);
bool dragging = false;
if (held && ImGui::IsMouseDragging(0)) {
*x = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).x;
*y = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).y;
dragging = true;
}
PushPlotClipRect();
ImDrawList& DrawList = *GetPlotDrawList();
if ((hovered || held) && show_curs)
ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
if (dragging && no_delay)
pos = PlotToPixels(*x,*y,IMPLOT_AUTO,IMPLOT_AUTO);
DrawList.AddCircleFilled(pos, radius, col32);
PopPlotClipRect();
ImGui::PopID();
return dragging;
}
bool DragLineX(int n_id, double* value, const ImVec4& col, float thickness, ImPlotDragToolFlags flags) {
// ImGui::PushID("#IMPLOT_DRAG_LINE_X");
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "DragLineX() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
if (!ImHasFlag(flags,ImPlotDragToolFlags_NoFit) && FitThisFrame()) {
FitPointX(*value);
}
const bool input = !ImHasFlag(flags, ImPlotDragToolFlags_NoInputs);
const bool show_curs = !ImHasFlag(flags, ImPlotDragToolFlags_NoCursors);
const bool no_delay = !ImHasFlag(flags, ImPlotDragToolFlags_Delayed);
const float grab_half_size = ImMax(DRAG_GRAB_HALF_SIZE, thickness/2);
float yt = gp.CurrentPlot->PlotRect.Min.y;
float yb = gp.CurrentPlot->PlotRect.Max.y;
float x = IM_ROUND(PlotToPixels(*value,0,IMPLOT_AUTO,IMPLOT_AUTO).x);
const ImGuiID id = ImGui::GetCurrentWindow()->GetID(n_id);
ImRect rect(x-grab_half_size,yt,x+grab_half_size,yb);
bool hovered = false, held = false;
ImGui::KeepAliveID(id);
if (input)
ImGui::ButtonBehavior(rect,id,&hovered,&held);
if ((hovered || held) && show_curs)
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW);
float len = gp.Style.MajorTickLen.x;
ImVec4 color = IsColorAuto(col) ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : col;
ImU32 col32 = ImGui::ColorConvertFloat4ToU32(color);
bool dragging = false;
if (held && ImGui::IsMouseDragging(0)) {
*value = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).x;
dragging = true;
}
PushPlotClipRect();
ImDrawList& DrawList = *GetPlotDrawList();
if (dragging && no_delay)
x = IM_ROUND(PlotToPixels(*value,0,IMPLOT_AUTO,IMPLOT_AUTO).x);
DrawList.AddLine(ImVec2(x,yt), ImVec2(x,yb), col32, thickness);
DrawList.AddLine(ImVec2(x,yt), ImVec2(x,yt+len), col32, 3*thickness);
DrawList.AddLine(ImVec2(x,yb), ImVec2(x,yb-len), col32, 3*thickness);
PopPlotClipRect();
// ImGui::PopID();
return dragging;
}
bool DragLineY(int n_id, double* value, const ImVec4& col, float thickness, ImPlotDragToolFlags flags) {
ImGui::PushID("#IMPLOT_DRAG_LINE_Y");
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "DragLineY() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
if (!ImHasFlag(flags,ImPlotDragToolFlags_NoFit) && FitThisFrame()) {
FitPointY(*value);
}
const bool input = !ImHasFlag(flags, ImPlotDragToolFlags_NoInputs);
const bool show_curs = !ImHasFlag(flags, ImPlotDragToolFlags_NoCursors);
const bool no_delay = !ImHasFlag(flags, ImPlotDragToolFlags_Delayed);
const float grab_half_size = ImMax(DRAG_GRAB_HALF_SIZE, thickness/2);
float xl = gp.CurrentPlot->PlotRect.Min.x;
float xr = gp.CurrentPlot->PlotRect.Max.x;
float y = IM_ROUND(PlotToPixels(0, *value,IMPLOT_AUTO,IMPLOT_AUTO).y);
const ImGuiID id = ImGui::GetCurrentWindow()->GetID(n_id);
ImRect rect(xl,y-grab_half_size,xr,y+grab_half_size);
bool hovered = false, held = false;
ImGui::KeepAliveID(id);
if (input)
ImGui::ButtonBehavior(rect,id,&hovered,&held);
if ((hovered || held) && show_curs)
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS);
float len = gp.Style.MajorTickLen.y;
ImVec4 color = IsColorAuto(col) ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : col;
ImU32 col32 = ImGui::ColorConvertFloat4ToU32(color);
bool dragging = false;
if (held && ImGui::IsMouseDragging(0)) {
*value = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).y;
dragging = true;
}
PushPlotClipRect();
ImDrawList& DrawList = *GetPlotDrawList();
if (dragging && no_delay)
y = IM_ROUND(PlotToPixels(0, *value,IMPLOT_AUTO,IMPLOT_AUTO).y);
DrawList.AddLine(ImVec2(xl,y), ImVec2(xr,y), col32, thickness);
DrawList.AddLine(ImVec2(xl,y), ImVec2(xl+len,y), col32, 3*thickness);
DrawList.AddLine(ImVec2(xr,y), ImVec2(xr-len,y), col32, 3*thickness);
PopPlotClipRect();
ImGui::PopID();
return dragging;
}
bool DragRect(int n_id, double* x_min, double* y_min, double* x_max, double* y_max, const ImVec4& col, ImPlotDragToolFlags flags) {
ImGui::PushID("#IMPLOT_DRAG_RECT");
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "DragRect() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
if (!ImHasFlag(flags,ImPlotDragToolFlags_NoFit) && FitThisFrame()) {
FitPoint(ImPlotPoint(*x_min,*y_min));
FitPoint(ImPlotPoint(*x_max,*y_max));
}
const bool input = !ImHasFlag(flags, ImPlotDragToolFlags_NoInputs);
const bool show_curs = !ImHasFlag(flags, ImPlotDragToolFlags_NoCursors);
const bool no_delay = !ImHasFlag(flags, ImPlotDragToolFlags_Delayed);
bool h[] = {true,false,true,false};
double* x[] = {x_min,x_max,x_max,x_min};
double* y[] = {y_min,y_min,y_max,y_max};
ImVec2 p[4];
for (int i = 0; i < 4; ++i)
p[i] = PlotToPixels(*x[i],*y[i],IMPLOT_AUTO,IMPLOT_AUTO);
ImVec2 pc = PlotToPixels((*x_min+*x_max)/2,(*y_min+*y_max)/2,IMPLOT_AUTO,IMPLOT_AUTO);
ImRect rect(ImMin(p[0],p[2]),ImMax(p[0],p[2]));
ImRect rect_grab = rect; rect_grab.Expand(DRAG_GRAB_HALF_SIZE);
ImGuiMouseCursor cur[4];
if (show_curs) {
cur[0] = (rect.Min.x == p[0].x && rect.Min.y == p[0].y) || (rect.Max.x == p[0].x && rect.Max.y == p[0].y) ? ImGuiMouseCursor_ResizeNWSE : ImGuiMouseCursor_ResizeNESW;
cur[1] = cur[0] == ImGuiMouseCursor_ResizeNWSE ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
cur[2] = cur[1] == ImGuiMouseCursor_ResizeNWSE ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
cur[3] = cur[2] == ImGuiMouseCursor_ResizeNWSE ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
}
ImVec4 color = IsColorAuto(col) ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : col;
ImU32 col32 = ImGui::ColorConvertFloat4ToU32(color);
color.w *= 0.25f;
ImU32 col32_a = ImGui::ColorConvertFloat4ToU32(color);
const ImGuiID id = ImGui::GetCurrentWindow()->GetID(n_id);
bool dragging = false;
bool hovered = false, held = false;
ImRect b_rect(pc.x-DRAG_GRAB_HALF_SIZE,pc.y-DRAG_GRAB_HALF_SIZE,pc.x+DRAG_GRAB_HALF_SIZE,pc.y+DRAG_GRAB_HALF_SIZE);
ImGui::KeepAliveID(id);
if (input)
ImGui::ButtonBehavior(b_rect,id,&hovered,&held);
if ((hovered || held) && show_curs)
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeAll);
if (held && ImGui::IsMouseDragging(0)) {
for (int i = 0; i < 4; ++i) {
ImPlotPoint pp = PixelsToPlot(p[i] + ImGui::GetIO().MouseDelta,IMPLOT_AUTO,IMPLOT_AUTO);
*y[i] = pp.y;
*x[i] = pp.x;
}
dragging = true;
}
for (int i = 0; i < 4; ++i) {
// points
b_rect = ImRect(p[i].x-DRAG_GRAB_HALF_SIZE,p[i].y-DRAG_GRAB_HALF_SIZE,p[i].x+DRAG_GRAB_HALF_SIZE,p[i].y+DRAG_GRAB_HALF_SIZE);
ImGuiID p_id = id + i + 1;
ImGui::KeepAliveID(p_id);
if (input)
ImGui::ButtonBehavior(b_rect,p_id,&hovered,&held);
if ((hovered || held) && show_curs)
ImGui::SetMouseCursor(cur[i]);
if (held && ImGui::IsMouseDragging(0)) {
*x[i] = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).x;
*y[i] = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).y;
dragging = true;
}
// edges
ImVec2 e_min = ImMin(p[i],p[(i+1)%4]);
ImVec2 e_max = ImMax(p[i],p[(i+1)%4]);
b_rect = h[i] ? ImRect(e_min.x + DRAG_GRAB_HALF_SIZE, e_min.y - DRAG_GRAB_HALF_SIZE, e_max.x - DRAG_GRAB_HALF_SIZE, e_max.y + DRAG_GRAB_HALF_SIZE)
: ImRect(e_min.x - DRAG_GRAB_HALF_SIZE, e_min.y + DRAG_GRAB_HALF_SIZE, e_max.x + DRAG_GRAB_HALF_SIZE, e_max.y - DRAG_GRAB_HALF_SIZE);
ImGuiID e_id = id + i + 5;
ImGui::KeepAliveID(e_id);
if (input)
ImGui::ButtonBehavior(b_rect,e_id,&hovered,&held);
if ((hovered || held) && show_curs)
h[i] ? ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS) : ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW);
if (held && ImGui::IsMouseDragging(0)) {
if (h[i])
*y[i] = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).y;
else
*x[i] = ImPlot::GetPlotMousePos(IMPLOT_AUTO,IMPLOT_AUTO).x;
dragging = true;
}
if (hovered && ImGui::IsMouseDoubleClicked(0))
{
ImPlotRect b = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO);
if (h[i])
*y[i] = ((y[i] == y_min && *y_min < *y_max) || (y[i] == y_max && *y_max < *y_min)) ? b.Y.Min : b.Y.Max;
else
*x[i] = ((x[i] == x_min && *x_min < *x_max) || (x[i] == x_max && *x_max < *x_min)) ? b.X.Min : b.X.Max;
dragging = true;
}
}
PushPlotClipRect();
ImDrawList& DrawList = *GetPlotDrawList();
if (dragging && no_delay) {
for (int i = 0; i < 4; ++i)
p[i] = PlotToPixels(*x[i],*y[i],IMPLOT_AUTO,IMPLOT_AUTO);
pc = PlotToPixels((*x_min+*x_max)/2,(*y_min+*y_max)/2,IMPLOT_AUTO,IMPLOT_AUTO);
rect = ImRect(ImMin(p[0],p[2]),ImMax(p[0],p[2]));
}
DrawList.AddRectFilled(rect.Min, rect.Max, col32_a);
DrawList.AddRect(rect.Min, rect.Max, col32);
if (input && (dragging || rect_grab.Contains(ImGui::GetMousePos()))) {
DrawList.AddCircleFilled(pc,DRAG_GRAB_HALF_SIZE,col32);
for (int i = 0; i < 4; ++i)
DrawList.AddCircleFilled(p[i],DRAG_GRAB_HALF_SIZE,col32);
}
PopPlotClipRect();
ImGui::PopID();
return dragging;
}
bool DragRect(int id, ImPlotRect* bounds, const ImVec4& col, ImPlotDragToolFlags flags) {
return DragRect(id, &bounds->X.Min, &bounds->Y.Min,&bounds->X.Max, &bounds->Y.Max, col, flags);
}
//-----------------------------------------------------------------------------
// [SECTION] Legend Utils and Tools
//-----------------------------------------------------------------------------
bool IsLegendEntryHovered(const char* label_id) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentItems != NULL, "IsPlotItemHighlight() needs to be called within an itemized context!");
SetupLock();
ImGuiID id = ImGui::GetIDWithSeed(label_id, NULL, gp.CurrentItems->ID);
ImPlotItem* item = gp.CurrentItems->GetItem(id);
return item && item->LegendHovered;
}
bool BeginLegendPopup(const char* label_id, ImGuiMouseButton mouse_button) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentItems != NULL, "BeginLegendPopup() needs to be called within an itemized context!");
SetupLock();
ImGuiWindow* window = GImGui->CurrentWindow;
if (window->SkipItems)
return false;
ImGuiID id = ImGui::GetIDWithSeed(label_id, NULL, gp.CurrentItems->ID);
if (ImGui::IsMouseReleased(mouse_button)) {
ImPlotItem* item = gp.CurrentItems->GetItem(id);
if (item && item->LegendHovered)
ImGui::OpenPopupEx(id);
}
return ImGui::BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
}
void EndLegendPopup() {
SetupLock();
ImGui::EndPopup();
}
void ShowAltLegend(const char* title_id, bool vertical, const ImVec2 size, bool interactable) {
ImPlotContext& gp = *GImPlot;
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems)
return;
ImDrawList &DrawList = *Window->DrawList;
ImPlotPlot* plot = GetPlot(title_id);
ImVec2 legend_size;
ImVec2 default_size = gp.Style.LegendPadding * 2;
if (plot != NULL) {
legend_size = CalcLegendSize(plot->Items, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, vertical);
default_size = legend_size + gp.Style.LegendPadding * 2;
}
ImVec2 frame_size = ImGui::CalcItemSize(size, default_size.x, default_size.y);
ImRect bb_frame = ImRect(Window->DC.CursorPos, Window->DC.CursorPos + frame_size);
ImGui::ItemSize(bb_frame);
if (!ImGui::ItemAdd(bb_frame, 0, &bb_frame))
return;
ImGui::RenderFrame(bb_frame.Min, bb_frame.Max, GetStyleColorU32(ImPlotCol_FrameBg), true, G.Style.FrameRounding);
DrawList.PushClipRect(bb_frame.Min, bb_frame.Max, true);
if (plot != NULL) {
const ImVec2 legend_pos = GetLocationPos(bb_frame, legend_size, 0, gp.Style.LegendPadding);
const ImRect legend_bb(legend_pos, legend_pos + legend_size);
interactable = interactable && bb_frame.Contains(ImGui::GetIO().MousePos);
// render legend box
ImU32 col_bg = GetStyleColorU32(ImPlotCol_LegendBg);
ImU32 col_bd = GetStyleColorU32(ImPlotCol_LegendBorder);
DrawList.AddRectFilled(legend_bb.Min, legend_bb.Max, col_bg);
DrawList.AddRect(legend_bb.Min, legend_bb.Max, col_bd);
// render entries
ShowLegendEntries(plot->Items, legend_bb, interactable, gp.Style.LegendInnerPadding, gp.Style.LegendSpacing, vertical, DrawList);
}
DrawList.PopClipRect();
}
//-----------------------------------------------------------------------------
// [SECTION] Drag and Drop Utils
//-----------------------------------------------------------------------------
bool BeginDragDropTargetPlot() {
SetupLock();
ImRect rect = GImPlot->CurrentPlot->PlotRect;
return ImGui::BeginDragDropTargetCustom(rect, GImPlot->CurrentPlot->ID);
}
bool BeginDragDropTargetAxis(ImAxis axis) {
SetupLock();
ImPlotPlot& plot = *GImPlot->CurrentPlot;
ImPlotAxis& ax = plot.Axes[axis];
ImRect rect = ax.HoverRect;
rect.Expand(-3.5f);
return ImGui::BeginDragDropTargetCustom(rect, ax.ID);
}
bool BeginDragDropTargetLegend() {
SetupLock();
ImPlotItemGroup& items = *GImPlot->CurrentItems;
ImRect rect = items.Legend.Rect;
return ImGui::BeginDragDropTargetCustom(rect, items.ID);
}
void EndDragDropTarget() {
SetupLock();
ImGui::EndDragDropTarget();
}
bool BeginDragDropSourcePlot(ImGuiDragDropFlags flags) {
SetupLock();
ImPlotPlot* plot = GImPlot->CurrentPlot;
if (GImGui->IO.KeyMods == GImPlot->InputMap.OverrideMod || GImGui->DragDropPayload.SourceId == plot->ID)
return ImGui::ItemAdd(plot->PlotRect, plot->ID) && ImGui::BeginDragDropSource(flags);
return false;
}
bool BeginDragDropSourceAxis(ImAxis idx, ImGuiDragDropFlags flags) {
SetupLock();
ImPlotAxis& axis = GImPlot->CurrentPlot->Axes[idx];
if (GImGui->IO.KeyMods == GImPlot->InputMap.OverrideMod || GImGui->DragDropPayload.SourceId == axis.ID)
return ImGui::ItemAdd(axis.HoverRect, axis.ID) && ImGui::BeginDragDropSource(flags);
return false;
}
bool BeginDragDropSourceItem(const char* label_id, ImGuiDragDropFlags flags) {
SetupLock();
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentItems != NULL, "BeginDragDropSourceItem() needs to be called within an itemized context!");
ImGuiID item_id = ImGui::GetIDWithSeed(label_id, NULL, gp.CurrentItems->ID);
ImPlotItem* item = gp.CurrentItems->GetItem(item_id);
if (item != NULL) {
return ImGui::ItemAdd(item->LegendHoverRect, item->ID) && ImGui::BeginDragDropSource(flags);
}
return false;
}
void EndDragDropSource() {
SetupLock();
ImGui::EndDragDropSource();
}
//-----------------------------------------------------------------------------
// [SECTION] Aligned Plots
//-----------------------------------------------------------------------------
bool BeginAlignedPlots(const char* group_id, bool vertical) {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentAlignmentH == NULL && GImPlot->CurrentAlignmentV == NULL, "Mismatched BeginAlignedPlots()/EndAlignedPlots()!");
ImPlotContext& gp = *GImPlot;
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems)
return false;
const ImGuiID ID = Window->GetID(group_id);
ImPlotAlignmentData* alignment = gp.AlignmentData.GetOrAddByKey(ID);
if (vertical)
gp.CurrentAlignmentV = alignment;
else
gp.CurrentAlignmentH = alignment;
if (alignment->Vertical != vertical)
alignment->Reset();
alignment->Vertical = vertical;
alignment->Begin();
return true;
}
void EndAlignedPlots() {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
IM_ASSERT_USER_ERROR(GImPlot->CurrentAlignmentH != NULL || GImPlot->CurrentAlignmentV != NULL, "Mismatched BeginAlignedPlots()/EndAlignedPlots()!");
ImPlotContext& gp = *GImPlot;
ImPlotAlignmentData* alignment = gp.CurrentAlignmentH != NULL ? gp.CurrentAlignmentH : (gp.CurrentAlignmentV != NULL ? gp.CurrentAlignmentV : NULL);
if (alignment)
alignment->End();
ResetCtxForNextAlignedPlots(GImPlot);
}
//-----------------------------------------------------------------------------
// [SECTION] Plot and Item Styling
//-----------------------------------------------------------------------------
ImPlotStyle& GetStyle() {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
ImPlotContext& gp = *GImPlot;
return gp.Style;
}
void PushStyleColor(ImPlotCol idx, ImU32 col) {
ImPlotContext& gp = *GImPlot;
ImGuiColorMod backup;
backup.Col = (ImGuiCol)idx;
backup.BackupValue = gp.Style.Colors[idx];
gp.ColorModifiers.push_back(backup);
gp.Style.Colors[idx] = ImGui::ColorConvertU32ToFloat4(col);
}
void PushStyleColor(ImPlotCol idx, const ImVec4& col) {
ImPlotContext& gp = *GImPlot;
ImGuiColorMod backup;
backup.Col = (ImGuiCol)idx;
backup.BackupValue = gp.Style.Colors[idx];
gp.ColorModifiers.push_back(backup);
gp.Style.Colors[idx] = col;
}
void PopStyleColor(int count) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(count <= gp.ColorModifiers.Size, "You can't pop more modifiers than have been pushed!");
while (count > 0)
{
ImGuiColorMod& backup = gp.ColorModifiers.back();
gp.Style.Colors[backup.Col] = backup.BackupValue;
gp.ColorModifiers.pop_back();
count--;
}
}
void PushStyleVar(ImPlotStyleVar idx, float val) {
ImPlotContext& gp = *GImPlot;
const ImPlotStyleVarInfo* var_info = GetPlotStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_Float && var_info->Count == 1) {
float* pvar = (float*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod((ImGuiStyleVar)idx, *pvar));
*pvar = val;
return;
}
IM_ASSERT(0 && "Called PushStyleVar() float variant but variable is not a float!");
}
void PushStyleVar(ImPlotStyleVar idx, int val) {
ImPlotContext& gp = *GImPlot;
const ImPlotStyleVarInfo* var_info = GetPlotStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_S32 && var_info->Count == 1) {
int* pvar = (int*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod((ImGuiStyleVar)idx, *pvar));
*pvar = val;
return;
}
else if (var_info->Type == ImGuiDataType_Float && var_info->Count == 1) {
float* pvar = (float*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod((ImGuiStyleVar)idx, *pvar));
*pvar = (float)val;
return;
}
IM_ASSERT(0 && "Called PushStyleVar() int variant but variable is not a int!");
}
void PushStyleVar(ImPlotStyleVar idx, const ImVec2& val)
{
ImPlotContext& gp = *GImPlot;
const ImPlotStyleVarInfo* var_info = GetPlotStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_Float && var_info->Count == 2)
{
ImVec2* pvar = (ImVec2*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod((ImGuiStyleVar)idx, *pvar));
*pvar = val;
return;
}
IM_ASSERT(0 && "Called PushStyleVar() ImVec2 variant but variable is not a ImVec2!");
}
void PopStyleVar(int count) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(count <= gp.StyleModifiers.Size, "You can't pop more modifiers than have been pushed!");
while (count > 0) {
ImGuiStyleMod& backup = gp.StyleModifiers.back();
const ImPlotStyleVarInfo* info = GetPlotStyleVarInfo(backup.VarIdx);
void* data = info->GetVarPtr(&gp.Style);
if (info->Type == ImGuiDataType_Float && info->Count == 1) {
((float*)data)[0] = backup.BackupFloat[0];
}
else if (info->Type == ImGuiDataType_Float && info->Count == 2) {
((float*)data)[0] = backup.BackupFloat[0];
((float*)data)[1] = backup.BackupFloat[1];
}
else if (info->Type == ImGuiDataType_S32 && info->Count == 1) {
((int*)data)[0] = backup.BackupInt[0];
}
gp.StyleModifiers.pop_back();
count--;
}
}
//------------------------------------------------------------------------------
// [Section] Colormaps
//------------------------------------------------------------------------------
ImPlotColormap AddColormap(const char* name, const ImVec4* colormap, int size, bool qual) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(size > 1, "The colormap size must be greater than 1!");
IM_ASSERT_USER_ERROR(gp.ColormapData.GetIndex(name) == -1, "The colormap name has already been used!");
ImVector<ImU32> buffer;
buffer.resize(size);
for (int i = 0; i < size; ++i)
buffer[i] = ImGui::ColorConvertFloat4ToU32(colormap[i]);
return gp.ColormapData.Append(name, buffer.Data, size, qual);
}
ImPlotColormap AddColormap(const char* name, const ImU32* colormap, int size, bool qual) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(size > 1, "The colormap size must be greater than 1!");
IM_ASSERT_USER_ERROR(gp.ColormapData.GetIndex(name) == -1, "The colormap name has already be used!");
return gp.ColormapData.Append(name, colormap, size, qual);
}
int GetColormapCount() {
ImPlotContext& gp = *GImPlot;
return gp.ColormapData.Count;
}
const char* GetColormapName(ImPlotColormap colormap) {
ImPlotContext& gp = *GImPlot;
return gp.ColormapData.GetName(colormap);
}
ImPlotColormap GetColormapIndex(const char* name) {
ImPlotContext& gp = *GImPlot;
return gp.ColormapData.GetIndex(name);
}
void PushColormap(ImPlotColormap colormap) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(colormap >= 0 && colormap < gp.ColormapData.Count, "The colormap index is invalid!");
gp.ColormapModifiers.push_back(gp.Style.Colormap);
gp.Style.Colormap = colormap;
}
void PushColormap(const char* name) {
ImPlotContext& gp = *GImPlot;
ImPlotColormap idx = gp.ColormapData.GetIndex(name);
IM_ASSERT_USER_ERROR(idx != -1, "The colormap name is invalid!");
PushColormap(idx);
}
void PopColormap(int count) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(count <= gp.ColormapModifiers.Size, "You can't pop more modifiers than have been pushed!");
while (count > 0) {
const ImPlotColormap& backup = gp.ColormapModifiers.back();
gp.Style.Colormap = backup;
gp.ColormapModifiers.pop_back();
count--;
}
}
ImU32 NextColormapColorU32() {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentItems != NULL, "NextColormapColor() needs to be called between BeginPlot() and EndPlot()!");
int idx = gp.CurrentItems->ColormapIdx % gp.ColormapData.GetKeyCount(gp.Style.Colormap);
ImU32 col = gp.ColormapData.GetKeyColor(gp.Style.Colormap, idx);
gp.CurrentItems->ColormapIdx++;
return col;
}
ImVec4 NextColormapColor() {
return ImGui::ColorConvertU32ToFloat4(NextColormapColorU32());
}
int GetColormapSize(ImPlotColormap cmap) {
ImPlotContext& gp = *GImPlot;
cmap = cmap == IMPLOT_AUTO ? gp.Style.Colormap : cmap;
IM_ASSERT_USER_ERROR(cmap >= 0 && cmap < gp.ColormapData.Count, "Invalid colormap index!");
return gp.ColormapData.GetKeyCount(cmap);
}
ImU32 GetColormapColorU32(int idx, ImPlotColormap cmap) {
ImPlotContext& gp = *GImPlot;
cmap = cmap == IMPLOT_AUTO ? gp.Style.Colormap : cmap;
IM_ASSERT_USER_ERROR(cmap >= 0 && cmap < gp.ColormapData.Count, "Invalid colormap index!");
idx = idx % gp.ColormapData.GetKeyCount(cmap);
return gp.ColormapData.GetKeyColor(cmap, idx);
}
ImVec4 GetColormapColor(int idx, ImPlotColormap cmap) {
return ImGui::ColorConvertU32ToFloat4(GetColormapColorU32(idx,cmap));
}
ImU32 SampleColormapU32(float t, ImPlotColormap cmap) {
ImPlotContext& gp = *GImPlot;
cmap = cmap == IMPLOT_AUTO ? gp.Style.Colormap : cmap;
IM_ASSERT_USER_ERROR(cmap >= 0 && cmap < gp.ColormapData.Count, "Invalid colormap index!");
return gp.ColormapData.LerpTable(cmap, t);
}
ImVec4 SampleColormap(float t, ImPlotColormap cmap) {
return ImGui::ColorConvertU32ToFloat4(SampleColormapU32(t,cmap));
}
void RenderColorBar(const ImU32* colors, int size, ImDrawList& DrawList, const ImRect& bounds, bool vert, bool reversed, bool continuous) {
const int n = continuous ? size - 1 : size;
ImU32 col1, col2;
if (vert) {
const float step = bounds.GetHeight() / n;
ImRect rect(bounds.Min.x, bounds.Min.y, bounds.Max.x, bounds.Min.y + step);
for (int i = 0; i < n; ++i) {
if (reversed) {
col1 = colors[size-i-1];
col2 = continuous ? colors[size-i-2] : col1;
}
else {
col1 = colors[i];
col2 = continuous ? colors[i+1] : col1;
}
DrawList.AddRectFilledMultiColor(rect.Min, rect.Max, col1, col1, col2, col2);
rect.TranslateY(step);
}
}
else {
const float step = bounds.GetWidth() / n;
ImRect rect(bounds.Min.x, bounds.Min.y, bounds.Min.x + step, bounds.Max.y);
for (int i = 0; i < n; ++i) {
if (reversed) {
col1 = colors[size-i-1];
col2 = continuous ? colors[size-i-2] : col1;
}
else {
col1 = colors[i];
col2 = continuous ? colors[i+1] : col1;
}
DrawList.AddRectFilledMultiColor(rect.Min, rect.Max, col1, col2, col2, col1);
rect.TranslateX(step);
}
}
}
void ColormapScale(const char* label, double scale_min, double scale_max, const ImVec2& size, const char* format, ImPlotColormapScaleFlags flags, ImPlotColormap cmap) {
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems)
return;
const ImGuiID ID = Window->GetID(label);
ImVec2 label_size(0,0);
if (!ImHasFlag(flags, ImPlotColormapScaleFlags_NoLabel)) {
label_size = ImGui::CalcTextSize(label,NULL,true);
}
ImPlotContext& gp = *GImPlot;
cmap = cmap == IMPLOT_AUTO ? gp.Style.Colormap : cmap;
IM_ASSERT_USER_ERROR(cmap >= 0 && cmap < gp.ColormapData.Count, "Invalid colormap index!");
ImVec2 frame_size = ImGui::CalcItemSize(size, 0, gp.Style.PlotDefaultSize.y);
if (frame_size.y < gp.Style.PlotMinSize.y && size.y < 0.0f)
frame_size.y = gp.Style.PlotMinSize.y;
ImPlotRange range(ImMin(scale_min,scale_max), ImMax(scale_min,scale_max));
gp.CTicker.Reset();
Locator_Default(gp.CTicker, range, frame_size.y, true, Formatter_Default, (void*)format);
const bool rend_label = label_size.x > 0;
const float txt_off = gp.Style.LabelPadding.x;
const float pad = txt_off + gp.CTicker.MaxSize.x + (rend_label ? txt_off + label_size.y : 0);
float bar_w = 20;
if (frame_size.x == 0)
frame_size.x = bar_w + pad + 2 * gp.Style.PlotPadding.x;
else {
bar_w = frame_size.x - (pad + 2 * gp.Style.PlotPadding.x);
if (bar_w < gp.Style.MajorTickLen.y)
bar_w = gp.Style.MajorTickLen.y;
}
ImDrawList &DrawList = *Window->DrawList;
ImRect bb_frame = ImRect(Window->DC.CursorPos, Window->DC.CursorPos + frame_size);
ImGui::ItemSize(bb_frame);
if (!ImGui::ItemAdd(bb_frame, ID, &bb_frame))
return;
ImGui::RenderFrame(bb_frame.Min, bb_frame.Max, GetStyleColorU32(ImPlotCol_FrameBg), true, G.Style.FrameRounding);
const bool opposite = ImHasFlag(flags, ImPlotColormapScaleFlags_Opposite);
const bool inverted = ImHasFlag(flags, ImPlotColormapScaleFlags_Invert);
const bool reversed = scale_min > scale_max;
float bb_grad_shift = opposite ? pad : 0;
ImRect bb_grad(bb_frame.Min + gp.Style.PlotPadding + ImVec2(bb_grad_shift, 0),
bb_frame.Min + ImVec2(bar_w + gp.Style.PlotPadding.x + bb_grad_shift,
frame_size.y - gp.Style.PlotPadding.y));
ImGui::PushClipRect(bb_frame.Min, bb_frame.Max, true);
const ImU32 col_text = ImGui::GetColorU32(ImGuiCol_Text);
const bool invert_scale = inverted ? (reversed ? false : true) : (reversed ? true : false);
const float y_min = invert_scale ? bb_grad.Max.y : bb_grad.Min.y;
const float y_max = invert_scale ? bb_grad.Min.y : bb_grad.Max.y;
RenderColorBar(gp.ColormapData.GetKeys(cmap), gp.ColormapData.GetKeyCount(cmap), DrawList, bb_grad, true, !inverted, !gp.ColormapData.IsQual(cmap));
for (int i = 0; i < gp.CTicker.TickCount(); ++i) {
const double y_pos_plt = gp.CTicker.Ticks[i].PlotPos;
const float y_pos = ImRemap((float)y_pos_plt, (float)range.Max, (float)range.Min, y_min, y_max);
const float tick_width = gp.CTicker.Ticks[i].Major ? gp.Style.MajorTickLen.y : gp.Style.MinorTickLen.y;
const float tick_thick = gp.CTicker.Ticks[i].Major ? gp.Style.MajorTickSize.y : gp.Style.MinorTickSize.y;
const float tick_t = (float)((y_pos_plt - scale_min) / (scale_max - scale_min));
const ImU32 tick_col = CalcTextColor(GImPlot->ColormapData.LerpTable(cmap,tick_t));
if (y_pos < bb_grad.Max.y - 2 && y_pos > bb_grad.Min.y + 2) {
DrawList.AddLine(opposite ? ImVec2(bb_grad.Min.x+1, y_pos) : ImVec2(bb_grad.Max.x-1, y_pos),
opposite ? ImVec2(bb_grad.Min.x + tick_width, y_pos) : ImVec2(bb_grad.Max.x - tick_width, y_pos),
tick_col,
tick_thick);
}
const float txt_x = opposite ? bb_grad.Min.x - txt_off - gp.CTicker.Ticks[i].LabelSize.x : bb_grad.Max.x + txt_off;
const float txt_y = y_pos - gp.CTicker.Ticks[i].LabelSize.y * 0.5f;
DrawList.AddText(ImVec2(txt_x, txt_y), col_text, gp.CTicker.GetText(i));
}
if (rend_label) {
const float pos_x = opposite ? bb_frame.Min.x + gp.Style.PlotPadding.x : bb_grad.Max.x + 2 * txt_off + gp.CTicker.MaxSize.x;
const float pos_y = bb_grad.GetCenter().y + label_size.x * 0.5f;
const char* label_end = ImGui::FindRenderedTextEnd(label);
AddTextVertical(&DrawList,ImVec2(pos_x,pos_y),col_text,label,label_end);
}
DrawList.AddRect(bb_grad.Min, bb_grad.Max, GetStyleColorU32(ImPlotCol_PlotBorder));
ImGui::PopClipRect();
}
bool ColormapSlider(const char* label, float* t, ImVec4* out, const char* format, ImPlotColormap cmap) {
*t = ImClamp(*t,0.0f,1.0f);
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems)
return false;
ImPlotContext& gp = *GImPlot;
cmap = cmap == IMPLOT_AUTO ? gp.Style.Colormap : cmap;
IM_ASSERT_USER_ERROR(cmap >= 0 && cmap < gp.ColormapData.Count, "Invalid colormap index!");
const ImU32* keys = GImPlot->ColormapData.GetKeys(cmap);
const int count = GImPlot->ColormapData.GetKeyCount(cmap);
const bool qual = GImPlot->ColormapData.IsQual(cmap);
const ImVec2 pos = ImGui::GetCurrentWindow()->DC.CursorPos;
const float w = ImGui::CalcItemWidth();
const float h = ImGui::GetFrameHeight();
const ImRect rect = ImRect(pos.x,pos.y,pos.x+w,pos.y+h);
RenderColorBar(keys,count,*ImGui::GetWindowDrawList(),rect,false,false,!qual);
const ImU32 grab = CalcTextColor(GImPlot->ColormapData.LerpTable(cmap,*t));
// const ImU32 text = CalcTextColor(GImPlot->ColormapData.LerpTable(cmap,0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBg,IM_COL32_BLACK_TRANS);
ImGui::PushStyleColor(ImGuiCol_FrameBgActive,IM_COL32_BLACK_TRANS);
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered,ImVec4(1,1,1,0.1f));
ImGui::PushStyleColor(ImGuiCol_SliderGrab,grab);
ImGui::PushStyleColor(ImGuiCol_SliderGrabActive, grab);
ImGui::PushStyleVar(ImGuiStyleVar_GrabMinSize,2);
ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding,0);
const bool changed = ImGui::SliderFloat(label,t,0,1,format);
ImGui::PopStyleColor(5);
ImGui::PopStyleVar(2);
if (out != NULL)
*out = ImGui::ColorConvertU32ToFloat4(GImPlot->ColormapData.LerpTable(cmap,*t));
return changed;
}
bool ColormapButton(const char* label, const ImVec2& size_arg, ImPlotColormap cmap) {
ImGuiContext &G = *GImGui;
const ImGuiStyle& style = G.Style;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems)
return false;
ImPlotContext& gp = *GImPlot;
cmap = cmap == IMPLOT_AUTO ? gp.Style.Colormap : cmap;
IM_ASSERT_USER_ERROR(cmap >= 0 && cmap < gp.ColormapData.Count, "Invalid colormap index!");
const ImU32* keys = GImPlot->ColormapData.GetKeys(cmap);
const int count = GImPlot->ColormapData.GetKeyCount(cmap);
const bool qual = GImPlot->ColormapData.IsQual(cmap);
const ImVec2 pos = ImGui::GetCurrentWindow()->DC.CursorPos;
const ImVec2 label_size = ImGui::CalcTextSize(label, NULL, true);
ImVec2 size = ImGui::CalcItemSize(size_arg, label_size.x + style.FramePadding.x * 2.0f, label_size.y + style.FramePadding.y * 2.0f);
const ImRect rect = ImRect(pos.x,pos.y,pos.x+size.x,pos.y+size.y);
RenderColorBar(keys,count,*ImGui::GetWindowDrawList(),rect,false,false,!qual);
const ImU32 text = CalcTextColor(GImPlot->ColormapData.LerpTable(cmap,G.Style.ButtonTextAlign.x));
ImGui::PushStyleColor(ImGuiCol_Button,IM_COL32_BLACK_TRANS);
ImGui::PushStyleColor(ImGuiCol_ButtonHovered,ImVec4(1,1,1,0.1f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive,ImVec4(1,1,1,0.2f));
ImGui::PushStyleColor(ImGuiCol_Text,text);
ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding,0);
const bool pressed = ImGui::Button(label,size);
ImGui::PopStyleColor(4);
ImGui::PopStyleVar(1);
return pressed;
}
//-----------------------------------------------------------------------------
// [Section] Miscellaneous
//-----------------------------------------------------------------------------
ImPlotInputMap& GetInputMap() {
IM_ASSERT_USER_ERROR(GImPlot != NULL, "No current context. Did you call ImPlot::CreateContext() or ImPlot::SetCurrentContext()?");
ImPlotContext& gp = *GImPlot;
return gp.InputMap;
}
void MapInputDefault(ImPlotInputMap* dst) {
ImPlotInputMap& map = dst ? *dst : GetInputMap();
map.Pan = ImGuiMouseButton_Left;
map.PanMod = ImGuiMod_None;
map.Fit = ImGuiMouseButton_Left;
map.Menu = ImGuiMouseButton_Right;
map.Select = ImGuiMouseButton_Right;
map.SelectMod = ImGuiMod_None;
map.SelectCancel = ImGuiMouseButton_Left;
map.SelectHorzMod = ImGuiMod_Alt;
map.SelectVertMod = ImGuiMod_Shift;
map.OverrideMod = ImGuiMod_Ctrl;
map.ZoomMod = ImGuiMod_None;
map.ZoomRate = 0.1f;
}
void MapInputReverse(ImPlotInputMap* dst) {
ImPlotInputMap& map = dst ? *dst : GetInputMap();
map.Pan = ImGuiMouseButton_Right;
map.PanMod = ImGuiMod_None;
map.Fit = ImGuiMouseButton_Left;
map.Menu = ImGuiMouseButton_Right;
map.Select = ImGuiMouseButton_Left;
map.SelectMod = ImGuiMod_None;
map.SelectCancel = ImGuiMouseButton_Right;
map.SelectHorzMod = ImGuiMod_Alt;
map.SelectVertMod = ImGuiMod_Shift;
map.OverrideMod = ImGuiMod_Ctrl;
map.ZoomMod = ImGuiMod_None;
map.ZoomRate = 0.1f;
}
//-----------------------------------------------------------------------------
// [Section] Miscellaneous
//-----------------------------------------------------------------------------
void ItemIcon(const ImVec4& col) {
ItemIcon(ImGui::ColorConvertFloat4ToU32(col));
}
void ItemIcon(ImU32 col) {
const float txt_size = ImGui::GetTextLineHeight();
ImVec2 size(txt_size-4,txt_size);
ImGuiWindow* window = ImGui::GetCurrentWindow();
ImVec2 pos = window->DC.CursorPos;
ImGui::GetWindowDrawList()->AddRectFilled(pos + ImVec2(0,2), pos + size - ImVec2(0,2), col);
ImGui::Dummy(size);
}
void ColormapIcon(ImPlotColormap cmap) {
ImPlotContext& gp = *GImPlot;
const float txt_size = ImGui::GetTextLineHeight();
ImVec2 size(txt_size-4,txt_size);
ImGuiWindow* window = ImGui::GetCurrentWindow();
ImVec2 pos = window->DC.CursorPos;
ImRect rect(pos+ImVec2(0,2),pos+size-ImVec2(0,2));
ImDrawList& DrawList = *ImGui::GetWindowDrawList();
RenderColorBar(gp.ColormapData.GetKeys(cmap),gp.ColormapData.GetKeyCount(cmap),DrawList,rect,false,false,!gp.ColormapData.IsQual(cmap));
ImGui::Dummy(size);
}
ImDrawList* GetPlotDrawList() {
return ImGui::GetWindowDrawList();
}
void PushPlotClipRect(float expand) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PushPlotClipRect() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
ImRect rect = gp.CurrentPlot->PlotRect;
rect.Expand(expand);
ImGui::PushClipRect(rect.Min, rect.Max, true);
}
void PopPlotClipRect() {
SetupLock();
ImGui::PopClipRect();
}
static void HelpMarker(const char* desc) {
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered()) {
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
bool ShowStyleSelector(const char* label)
{
static int style_idx = -1;
if (ImGui::Combo(label, &style_idx, "Auto\0Classic\0Dark\0Light\0"))
{
switch (style_idx)
{
case 0: StyleColorsAuto(); break;
case 1: StyleColorsClassic(); break;
case 2: StyleColorsDark(); break;
case 3: StyleColorsLight(); break;
}
return true;
}
return false;
}
bool ShowColormapSelector(const char* label) {
ImPlotContext& gp = *GImPlot;
bool set = false;
if (ImGui::BeginCombo(label, gp.ColormapData.GetName(gp.Style.Colormap))) {
for (int i = 0; i < gp.ColormapData.Count; ++i) {
const char* name = gp.ColormapData.GetName(i);
if (ImGui::Selectable(name, gp.Style.Colormap == i)) {
gp.Style.Colormap = i;
ImPlot::BustItemCache();
set = true;
}
}
ImGui::EndCombo();
}
return set;
}
bool ShowInputMapSelector(const char* label) {
static int map_idx = -1;
if (ImGui::Combo(label, &map_idx, "Default\0Reversed\0"))
{
switch (map_idx)
{
case 0: MapInputDefault(); break;
case 1: MapInputReverse(); break;
}
return true;
}
return false;
}
void ShowStyleEditor(ImPlotStyle* ref) {
ImPlotContext& gp = *GImPlot;
ImPlotStyle& style = GetStyle();
static ImPlotStyle ref_saved_style;
// Default to using internal storage as reference
static bool init = true;
if (init && ref == NULL)
ref_saved_style = style;
init = false;
if (ref == NULL)
ref = &ref_saved_style;
if (ImPlot::ShowStyleSelector("Colors##Selector"))
ref_saved_style = style;
// Save/Revert button
if (ImGui::Button("Save Ref"))
*ref = ref_saved_style = style;
ImGui::SameLine();
if (ImGui::Button("Revert Ref"))
style = *ref;
ImGui::SameLine();
HelpMarker("Save/Revert in local non-persistent storage. Default Colors definition are not affected. "
"Use \"Export\" below to save them somewhere.");
if (ImGui::BeginTabBar("##StyleEditor")) {
if (ImGui::BeginTabItem("Variables")) {
ImGui::Text("Item Styling");
ImGui::SliderFloat("LineWeight", &style.LineWeight, 0.0f, 5.0f, "%.1f");
ImGui::SliderFloat("MarkerSize", &style.MarkerSize, 2.0f, 10.0f, "%.1f");
ImGui::SliderFloat("MarkerWeight", &style.MarkerWeight, 0.0f, 5.0f, "%.1f");
ImGui::SliderFloat("FillAlpha", &style.FillAlpha, 0.0f, 1.0f, "%.2f");
ImGui::SliderFloat("ErrorBarSize", &style.ErrorBarSize, 0.0f, 10.0f, "%.1f");
ImGui::SliderFloat("ErrorBarWeight", &style.ErrorBarWeight, 0.0f, 5.0f, "%.1f");
ImGui::SliderFloat("DigitalBitHeight", &style.DigitalBitHeight, 0.0f, 20.0f, "%.1f");
ImGui::SliderFloat("DigitalBitGap", &style.DigitalBitGap, 0.0f, 20.0f, "%.1f");
ImGui::Text("Plot Styling");
ImGui::SliderFloat("PlotBorderSize", &style.PlotBorderSize, 0.0f, 2.0f, "%.0f");
ImGui::SliderFloat("MinorAlpha", &style.MinorAlpha, 0.0f, 1.0f, "%.2f");
ImGui::SliderFloat2("MajorTickLen", (float*)&style.MajorTickLen, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("MinorTickLen", (float*)&style.MinorTickLen, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("MajorTickSize", (float*)&style.MajorTickSize, 0.0f, 2.0f, "%.1f");
ImGui::SliderFloat2("MinorTickSize", (float*)&style.MinorTickSize, 0.0f, 2.0f, "%.1f");
ImGui::SliderFloat2("MajorGridSize", (float*)&style.MajorGridSize, 0.0f, 2.0f, "%.1f");
ImGui::SliderFloat2("MinorGridSize", (float*)&style.MinorGridSize, 0.0f, 2.0f, "%.1f");
ImGui::SliderFloat2("PlotDefaultSize", (float*)&style.PlotDefaultSize, 0.0f, 1000, "%.0f");
ImGui::SliderFloat2("PlotMinSize", (float*)&style.PlotMinSize, 0.0f, 300, "%.0f");
ImGui::Text("Plot Padding");
ImGui::SliderFloat2("PlotPadding", (float*)&style.PlotPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("LabelPadding", (float*)&style.LabelPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("LegendPadding", (float*)&style.LegendPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("LegendInnerPadding", (float*)&style.LegendInnerPadding, 0.0f, 10.0f, "%.0f");
ImGui::SliderFloat2("LegendSpacing", (float*)&style.LegendSpacing, 0.0f, 5.0f, "%.0f");
ImGui::SliderFloat2("MousePosPadding", (float*)&style.MousePosPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("AnnotationPadding", (float*)&style.AnnotationPadding, 0.0f, 5.0f, "%.0f");
ImGui::SliderFloat2("FitPadding", (float*)&style.FitPadding, 0, 0.2f, "%.2f");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Colors")) {
static int output_dest = 0;
static bool output_only_modified = false;
if (ImGui::Button("Export", ImVec2(75,0))) {
if (output_dest == 0)
ImGui::LogToClipboard();
else
ImGui::LogToTTY();
ImGui::LogText("ImVec4* colors = ImPlot::GetStyle().Colors;\n");
for (int i = 0; i < ImPlotCol_COUNT; i++) {
const ImVec4& col = style.Colors[i];
const char* name = ImPlot::GetStyleColorName(i);
if (!output_only_modified || memcmp(&col, &ref->Colors[i], sizeof(ImVec4)) != 0) {
if (IsColorAuto(i))
ImGui::LogText("colors[ImPlotCol_%s]%*s= IMPLOT_AUTO_COL;\n",name,14 - (int)strlen(name), "");
else
ImGui::LogText("colors[ImPlotCol_%s]%*s= ImVec4(%.2ff, %.2ff, %.2ff, %.2ff);\n",
name, 14 - (int)strlen(name), "", col.x, col.y, col.z, col.w);
}
}
ImGui::LogFinish();
}
ImGui::SameLine(); ImGui::SetNextItemWidth(120); ImGui::Combo("##output_type", &output_dest, "To Clipboard\0To TTY\0");
ImGui::SameLine(); ImGui::Checkbox("Only Modified Colors", &output_only_modified);
static ImGuiTextFilter filter;
filter.Draw("Filter colors", ImGui::GetFontSize() * 16);
static ImGuiColorEditFlags alpha_flags = ImGuiColorEditFlags_AlphaPreviewHalf;
if (ImGui::RadioButton("Opaque", alpha_flags == ImGuiColorEditFlags_None)) { alpha_flags = ImGuiColorEditFlags_None; } ImGui::SameLine();
if (ImGui::RadioButton("Alpha", alpha_flags == ImGuiColorEditFlags_AlphaPreview)) { alpha_flags = ImGuiColorEditFlags_AlphaPreview; } ImGui::SameLine();
if (ImGui::RadioButton("Both", alpha_flags == ImGuiColorEditFlags_AlphaPreviewHalf)) { alpha_flags = ImGuiColorEditFlags_AlphaPreviewHalf; } ImGui::SameLine();
HelpMarker(
"In the color list:\n"
"Left-click on colored square to open color picker,\n"
"Right-click to open edit options menu.");
ImGui::Separator();
ImGui::PushItemWidth(-160);
for (int i = 0; i < ImPlotCol_COUNT; i++) {
const char* name = ImPlot::GetStyleColorName(i);
if (!filter.PassFilter(name))
continue;
ImGui::PushID(i);
ImVec4 temp = GetStyleColorVec4(i);
const bool is_auto = IsColorAuto(i);
if (!is_auto)
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, 0.25f);
if (ImGui::Button("Auto")) {
if (is_auto)
style.Colors[i] = temp;
else
style.Colors[i] = IMPLOT_AUTO_COL;
BustItemCache();
}
if (!is_auto)
ImGui::PopStyleVar();
ImGui::SameLine();
if (ImGui::ColorEdit4(name, &temp.x, ImGuiColorEditFlags_NoInputs | alpha_flags)) {
style.Colors[i] = temp;
BustItemCache();
}
if (memcmp(&style.Colors[i], &ref->Colors[i], sizeof(ImVec4)) != 0) {
ImGui::SameLine(175); if (ImGui::Button("Save")) { ref->Colors[i] = style.Colors[i]; }
ImGui::SameLine(); if (ImGui::Button("Revert")) {
style.Colors[i] = ref->Colors[i];
BustItemCache();
}
}
ImGui::PopID();
}
ImGui::PopItemWidth();
ImGui::Separator();
ImGui::Text("Colors that are set to Auto (i.e. IMPLOT_AUTO_COL) will\n"
"be automatically deduced from your ImGui style or the\n"
"current ImPlot Colormap. If you want to style individual\n"
"plot items, use Push/PopStyleColor around its function.");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Colormaps")) {
static int output_dest = 0;
if (ImGui::Button("Export", ImVec2(75,0))) {
if (output_dest == 0)
ImGui::LogToClipboard();
else
ImGui::LogToTTY();
int size = GetColormapSize();
const char* name = GetColormapName(gp.Style.Colormap);
ImGui::LogText("static const ImU32 %s_Data[%d] = {\n", name, size);
for (int i = 0; i < size; ++i) {
ImU32 col = GetColormapColorU32(i,gp.Style.Colormap);
ImGui::LogText(" %u%s\n", col, i == size - 1 ? "" : ",");
}
ImGui::LogText("};\nImPlotColormap %s = ImPlot::AddColormap(\"%s\", %s_Data, %d);", name, name, name, size);
ImGui::LogFinish();
}
ImGui::SameLine(); ImGui::SetNextItemWidth(120); ImGui::Combo("##output_type", &output_dest, "To Clipboard\0To TTY\0");
ImGui::SameLine();
static bool edit = false;
ImGui::Checkbox("Edit Mode",&edit);
// built-in/added
ImGui::Separator();
for (int i = 0; i < gp.ColormapData.Count; ++i) {
ImGui::PushID(i);
int size = gp.ColormapData.GetKeyCount(i);
bool selected = i == gp.Style.Colormap;
const char* name = GetColormapName(i);
if (!selected)
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, 0.25f);
if (ImGui::Button(name, ImVec2(100,0))) {
gp.Style.Colormap = i;
BustItemCache();
}
if (!selected)
ImGui::PopStyleVar();
ImGui::SameLine();
ImGui::BeginGroup();
if (edit) {
for (int c = 0; c < size; ++c) {
ImGui::PushID(c);
ImVec4 col4 = ImGui::ColorConvertU32ToFloat4(gp.ColormapData.GetKeyColor(i,c));
if (ImGui::ColorEdit4("",&col4.x,ImGuiColorEditFlags_NoInputs)) {
ImU32 col32 = ImGui::ColorConvertFloat4ToU32(col4);
gp.ColormapData.SetKeyColor(i,c,col32);
BustItemCache();
}
if ((c + 1) % 12 != 0 && c != size -1)
ImGui::SameLine();
ImGui::PopID();
}
}
else {
if (ImPlot::ColormapButton("##",ImVec2(-1,0),i))
edit = true;
}
ImGui::EndGroup();
ImGui::PopID();
}
static ImVector<ImVec4> custom;
if (custom.Size == 0) {
custom.push_back(ImVec4(1,0,0,1));
custom.push_back(ImVec4(0,1,0,1));
custom.push_back(ImVec4(0,0,1,1));
}
ImGui::Separator();
ImGui::BeginGroup();
static char name[16] = "MyColormap";
if (ImGui::Button("+", ImVec2((100 - ImGui::GetStyle().ItemSpacing.x)/2,0)))
custom.push_back(ImVec4(0,0,0,1));
ImGui::SameLine();
if (ImGui::Button("-", ImVec2((100 - ImGui::GetStyle().ItemSpacing.x)/2,0)) && custom.Size > 2)
custom.pop_back();
ImGui::SetNextItemWidth(100);
ImGui::InputText("##Name",name,16,ImGuiInputTextFlags_CharsNoBlank);
static bool qual = true;
ImGui::Checkbox("Qualitative",&qual);
if (ImGui::Button("Add", ImVec2(100, 0)) && gp.ColormapData.GetIndex(name)==-1)
AddColormap(name,custom.Data,custom.Size,qual);
ImGui::EndGroup();
ImGui::SameLine();
ImGui::BeginGroup();
for (int c = 0; c < custom.Size; ++c) {
ImGui::PushID(c);
if (ImGui::ColorEdit4("##Col1", &custom[c].x, ImGuiColorEditFlags_NoInputs)) {
}
if ((c + 1) % 12 != 0)
ImGui::SameLine();
ImGui::PopID();
}
ImGui::EndGroup();
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
}
void ShowUserGuide() {
ImGui::BulletText("Left-click drag within the plot area to pan X and Y axes.");
ImGui::Indent();
ImGui::BulletText("Left-click drag on axis labels to pan an individual axis.");
ImGui::Unindent();
ImGui::BulletText("Scroll in the plot area to zoom both X any Y axes.");
ImGui::Indent();
ImGui::BulletText("Scroll on axis labels to zoom an individual axis.");
ImGui::Unindent();
ImGui::BulletText("Right-click drag to box select data.");
ImGui::Indent();
ImGui::BulletText("Hold Alt to expand box selection horizontally.");
ImGui::BulletText("Hold Shift to expand box selection vertically.");
ImGui::BulletText("Left-click while box selecting to cancel the selection.");
ImGui::Unindent();
ImGui::BulletText("Double left-click to fit all visible data.");
ImGui::Indent();
ImGui::BulletText("Double left-click axis labels to fit the individual axis.");
ImGui::Unindent();
ImGui::BulletText("Right-click open the full plot context menu.");
ImGui::Indent();
ImGui::BulletText("Right-click axis labels to open an individual axis context menu.");
ImGui::Unindent();
ImGui::BulletText("Click legend label icons to show/hide plot items.");
}
void ShowTicksMetrics(const ImPlotTicker& ticker) {
ImGui::BulletText("Size: %d", ticker.TickCount());
ImGui::BulletText("MaxSize: [%f,%f]", ticker.MaxSize.x, ticker.MaxSize.y);
}
void ShowAxisMetrics(const ImPlotPlot& plot, const ImPlotAxis& axis) {
ImGui::BulletText("Label: %s", axis.LabelOffset == -1 ? "[none]" : plot.GetAxisLabel(axis));
ImGui::BulletText("Flags: 0x%08X", axis.Flags);
ImGui::BulletText("Range: [%f,%f]",axis.Range.Min, axis.Range.Max);
ImGui::BulletText("Pixels: %f", axis.PixelSize());
ImGui::BulletText("Aspect: %f", axis.GetAspect());
ImGui::BulletText(axis.OrthoAxis == NULL ? "OrtherAxis: NULL" : "OrthoAxis: 0x%08X", axis.OrthoAxis->ID);
ImGui::BulletText("LinkedMin: %p", (void*)axis.LinkedMin);
ImGui::BulletText("LinkedMax: %p", (void*)axis.LinkedMax);
ImGui::BulletText("HasRange: %s", axis.HasRange ? "true" : "false");
ImGui::BulletText("Hovered: %s", axis.Hovered ? "true" : "false");
ImGui::BulletText("Held: %s", axis.Held ? "true" : "false");
if (ImGui::TreeNode("Transform")) {
ImGui::BulletText("PixelMin: %f", axis.PixelMin);
ImGui::BulletText("PixelMax: %f", axis.PixelMax);
ImGui::BulletText("ScaleToPixel: %f", axis.ScaleToPixel);
ImGui::BulletText("ScaleMax: %f", axis.ScaleMax);
ImGui::TreePop();
}
if (ImGui::TreeNode("Ticks")) {
ShowTicksMetrics(axis.Ticker);
ImGui::TreePop();
}
}
void ShowMetricsWindow(bool* p_popen) {
static bool show_plot_rects = false;
static bool show_axes_rects = false;
static bool show_axis_rects = false;
static bool show_canvas_rects = false;
static bool show_frame_rects = false;
static bool show_subplot_frame_rects = false;
static bool show_subplot_grid_rects = false;
ImDrawList& fg = *ImGui::GetForegroundDrawList();
ImPlotContext& gp = *GImPlot;
// ImGuiContext& g = *GImGui;
ImGuiIO& io = ImGui::GetIO();
ImGui::Begin("ImPlot Metrics", p_popen);
ImGui::Text("ImPlot " IMPLOT_VERSION);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::Text("Mouse Position: [%.0f,%.0f]", io.MousePos.x, io.MousePos.y);
ImGui::Separator();
if (ImGui::TreeNode("Tools")) {
if (ImGui::Button("Bust Plot Cache"))
BustPlotCache();
ImGui::SameLine();
if (ImGui::Button("Bust Item Cache"))
BustItemCache();
ImGui::Checkbox("Show Frame Rects", &show_frame_rects);
ImGui::Checkbox("Show Canvas Rects",&show_canvas_rects);
ImGui::Checkbox("Show Plot Rects", &show_plot_rects);
ImGui::Checkbox("Show Axes Rects", &show_axes_rects);
ImGui::Checkbox("Show Axis Rects", &show_axis_rects);
ImGui::Checkbox("Show Subplot Frame Rects", &show_subplot_frame_rects);
ImGui::Checkbox("Show Subplot Grid Rects", &show_subplot_grid_rects);
ImGui::TreePop();
}
const int n_plots = gp.Plots.GetBufSize();
const int n_subplots = gp.Subplots.GetBufSize();
// render rects
for (int p = 0; p < n_plots; ++p) {
ImPlotPlot* plot = gp.Plots.GetByIndex(p);
if (show_frame_rects)
fg.AddRect(plot->FrameRect.Min, plot->FrameRect.Max, IM_COL32(255,0,255,255));
if (show_canvas_rects)
fg.AddRect(plot->CanvasRect.Min, plot->CanvasRect.Max, IM_COL32(0,255,255,255));
if (show_plot_rects)
fg.AddRect(plot->PlotRect.Min, plot->PlotRect.Max, IM_COL32(255,255,0,255));
if (show_axes_rects)
fg.AddRect(plot->AxesRect.Min, plot->AxesRect.Max, IM_COL32(0,255,128,255));
if (show_axis_rects) {
for (int i = 0; i < ImAxis_COUNT; ++i) {
if (plot->Axes[i].Enabled)
fg.AddRect(plot->Axes[i].HoverRect.Min, plot->Axes[i].HoverRect.Max, IM_COL32(0,255,0,255));
}
}
}
for (int p = 0; p < n_subplots; ++p) {
ImPlotSubplot* subplot = gp.Subplots.GetByIndex(p);
if (show_subplot_frame_rects)
fg.AddRect(subplot->FrameRect.Min, subplot->FrameRect.Max, IM_COL32(255,0,0,255));
if (show_subplot_grid_rects)
fg.AddRect(subplot->GridRect.Min, subplot->GridRect.Max, IM_COL32(0,0,255,255));
}
if (ImGui::TreeNode("Plots","Plots (%d)", n_plots)) {
for (int p = 0; p < n_plots; ++p) {
// plot
ImPlotPlot& plot = *gp.Plots.GetByIndex(p);
ImGui::PushID(p);
if (ImGui::TreeNode("Plot", "Plot [0x%08X]", plot.ID)) {
int n_items = plot.Items.GetItemCount();
if (ImGui::TreeNode("Items", "Items (%d)", n_items)) {
for (int i = 0; i < n_items; ++i) {
ImPlotItem* item = plot.Items.GetItemByIndex(i);
ImGui::PushID(i);
if (ImGui::TreeNode("Item", "Item [0x%08X]", item->ID)) {
ImGui::Bullet(); ImGui::Checkbox("Show", &item->Show);
ImGui::Bullet();
ImVec4 temp = ImGui::ColorConvertU32ToFloat4(item->Color);
if (ImGui::ColorEdit4("Color",&temp.x, ImGuiColorEditFlags_NoInputs))
item->Color = ImGui::ColorConvertFloat4ToU32(temp);
ImGui::BulletText("NameOffset: %d",item->NameOffset);
ImGui::BulletText("Name: %s", item->NameOffset != -1 ? plot.Items.Legend.Labels.Buf.Data + item->NameOffset : "N/A");
ImGui::BulletText("Hovered: %s",item->LegendHovered ? "true" : "false");
ImGui::TreePop();
}
ImGui::PopID();
}
ImGui::TreePop();
}
char buff[16];
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
ImFormatString(buff,16,"X-Axis %d", i+1);
if (plot.XAxis(i).Enabled && ImGui::TreeNode(buff, "X-Axis %d [0x%08X]", i+1, plot.XAxis(i).ID)) {
ShowAxisMetrics(plot, plot.XAxis(i));
ImGui::TreePop();
}
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i) {
ImFormatString(buff,16,"Y-Axis %d", i+1);
if (plot.YAxis(i).Enabled && ImGui::TreeNode(buff, "Y-Axis %d [0x%08X]", i+1, plot.YAxis(i).ID)) {
ShowAxisMetrics(plot, plot.YAxis(i));
ImGui::TreePop();
}
}
ImGui::BulletText("Title: %s", plot.HasTitle() ? plot.GetTitle() : "none");
ImGui::BulletText("Flags: 0x%08X", plot.Flags);
ImGui::BulletText("Initialized: %s", plot.Initialized ? "true" : "false");
ImGui::BulletText("Selecting: %s", plot.Selecting ? "true" : "false");
ImGui::BulletText("Selected: %s", plot.Selected ? "true" : "false");
ImGui::BulletText("Hovered: %s", plot.Hovered ? "true" : "false");
ImGui::BulletText("Held: %s", plot.Held ? "true" : "false");
ImGui::BulletText("LegendHovered: %s", plot.Items.Legend.Hovered ? "true" : "false");
ImGui::BulletText("ContextLocked: %s", plot.ContextLocked ? "true" : "false");
ImGui::TreePop();
}
ImGui::PopID();
}
ImGui::TreePop();
}
if (ImGui::TreeNode("Subplots","Subplots (%d)", n_subplots)) {
for (int p = 0; p < n_subplots; ++p) {
// plot
ImPlotSubplot& plot = *gp.Subplots.GetByIndex(p);
ImGui::PushID(p);
if (ImGui::TreeNode("Subplot", "Subplot [0x%08X]", plot.ID)) {
int n_items = plot.Items.GetItemCount();
if (ImGui::TreeNode("Items", "Items (%d)", n_items)) {
for (int i = 0; i < n_items; ++i) {
ImPlotItem* item = plot.Items.GetItemByIndex(i);
ImGui::PushID(i);
if (ImGui::TreeNode("Item", "Item [0x%08X]", item->ID)) {
ImGui::Bullet(); ImGui::Checkbox("Show", &item->Show);
ImGui::Bullet();
ImVec4 temp = ImGui::ColorConvertU32ToFloat4(item->Color);
if (ImGui::ColorEdit4("Color",&temp.x, ImGuiColorEditFlags_NoInputs))
item->Color = ImGui::ColorConvertFloat4ToU32(temp);
ImGui::BulletText("NameOffset: %d",item->NameOffset);
ImGui::BulletText("Name: %s", item->NameOffset != -1 ? plot.Items.Legend.Labels.Buf.Data + item->NameOffset : "N/A");
ImGui::BulletText("Hovered: %s",item->LegendHovered ? "true" : "false");
ImGui::TreePop();
}
ImGui::PopID();
}
ImGui::TreePop();
}
ImGui::BulletText("Flags: 0x%08X", plot.Flags);
ImGui::BulletText("FrameHovered: %s", plot.FrameHovered ? "true" : "false");
ImGui::BulletText("LegendHovered: %s", plot.Items.Legend.Hovered ? "true" : "false");
ImGui::TreePop();
}
ImGui::PopID();
}
ImGui::TreePop();
}
if (ImGui::TreeNode("Colormaps")) {
ImGui::BulletText("Colormaps: %d", gp.ColormapData.Count);
ImGui::BulletText("Memory: %d bytes", gp.ColormapData.Tables.Size * 4);
if (ImGui::TreeNode("Data")) {
for (int m = 0; m < gp.ColormapData.Count; ++m) {
if (ImGui::TreeNode(gp.ColormapData.GetName(m))) {
int count = gp.ColormapData.GetKeyCount(m);
int size = gp.ColormapData.GetTableSize(m);
bool qual = gp.ColormapData.IsQual(m);
ImGui::BulletText("Qualitative: %s", qual ? "true" : "false");
ImGui::BulletText("Key Count: %d", count);
ImGui::BulletText("Table Size: %d", size);
ImGui::Indent();
static float t = 0.5;
ImVec4 samp;
float wid = 32 * 10 - ImGui::GetFrameHeight() - ImGui::GetStyle().ItemSpacing.x;
ImGui::SetNextItemWidth(wid);
ImPlot::ColormapSlider("##Sample",&t,&samp,"%.3f",m);
ImGui::SameLine();
ImGui::ColorButton("Sampler",samp);
ImGui::PushStyleColor(ImGuiCol_FrameBg, ImVec4(0,0,0,0));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0));
for (int c = 0; c < size; ++c) {
ImVec4 col = ImGui::ColorConvertU32ToFloat4(gp.ColormapData.GetTableColor(m,c));
ImGui::PushID(m*1000+c);
ImGui::ColorButton("",col,0,ImVec2(10,10));
ImGui::PopID();
if ((c + 1) % 32 != 0 && c != size - 1)
ImGui::SameLine();
}
ImGui::PopStyleVar();
ImGui::PopStyleColor();
ImGui::Unindent();
ImGui::TreePop();
}
}
ImGui::TreePop();
}
ImGui::TreePop();
}
ImGui::End();
}
bool ShowDatePicker(const char* id, int* level, ImPlotTime* t, const ImPlotTime* t1, const ImPlotTime* t2) {
ImGui::PushID(id);
ImGui::BeginGroup();
ImGuiStyle& style = ImGui::GetStyle();
ImVec4 col_txt = style.Colors[ImGuiCol_Text];
ImVec4 col_dis = style.Colors[ImGuiCol_TextDisabled];
ImVec4 col_btn = style.Colors[ImGuiCol_Button];
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0,0,0,0));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0));
const float ht = ImGui::GetFrameHeight();
ImVec2 cell_size(ht*1.25f,ht);
char buff[32];
bool clk = false;
tm& Tm = GImPlot->Tm;
const int min_yr = 1970;
const int max_yr = 2999;
// t1 parts
int t1_mo = 0; int t1_md = 0; int t1_yr = 0;
if (t1 != NULL) {
GetTime(*t1,&Tm);
t1_mo = Tm.tm_mon;
t1_md = Tm.tm_mday;
t1_yr = Tm.tm_year + 1900;
}
// t2 parts
int t2_mo = 0; int t2_md = 0; int t2_yr = 0;
if (t2 != NULL) {
GetTime(*t2,&Tm);
t2_mo = Tm.tm_mon;
t2_md = Tm.tm_mday;
t2_yr = Tm.tm_year + 1900;
}
// day widget
if (*level == 0) {
*t = FloorTime(*t, ImPlotTimeUnit_Day);
GetTime(*t, &Tm);
const int this_year = Tm.tm_year + 1900;
const int last_year = this_year - 1;
const int next_year = this_year + 1;
const int this_mon = Tm.tm_mon;
const int last_mon = this_mon == 0 ? 11 : this_mon - 1;
const int next_mon = this_mon == 11 ? 0 : this_mon + 1;
const int days_this_mo = GetDaysInMonth(this_year, this_mon);
const int days_last_mo = GetDaysInMonth(this_mon == 0 ? last_year : this_year, last_mon);
ImPlotTime t_first_mo = FloorTime(*t,ImPlotTimeUnit_Mo);
GetTime(t_first_mo,&Tm);
const int first_wd = Tm.tm_wday;
// month year
ImFormatString(buff, 32, "%s %d", MONTH_NAMES[this_mon], this_year);
if (ImGui::Button(buff))
*level = 1;
ImGui::SameLine(5*cell_size.x);
BeginDisabledControls(this_year <= min_yr && this_mon == 0);
if (ImGui::ArrowButtonEx("##Up",ImGuiDir_Up,cell_size))
*t = AddTime(*t, ImPlotTimeUnit_Mo, -1);
EndDisabledControls(this_year <= min_yr && this_mon == 0);
ImGui::SameLine();
BeginDisabledControls(this_year >= max_yr && this_mon == 11);
if (ImGui::ArrowButtonEx("##Down",ImGuiDir_Down,cell_size))
*t = AddTime(*t, ImPlotTimeUnit_Mo, 1);
EndDisabledControls(this_year >= max_yr && this_mon == 11);
// render weekday abbreviations
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
for (int i = 0; i < 7; ++i) {
ImGui::Button(WD_ABRVS[i],cell_size);
if (i != 6) { ImGui::SameLine(); }
}
ImGui::PopItemFlag();
// 0 = last mo, 1 = this mo, 2 = next mo
int mo = first_wd > 0 ? 0 : 1;
int day = mo == 1 ? 1 : days_last_mo - first_wd + 1;
for (int i = 0; i < 6; ++i) {
for (int j = 0; j < 7; ++j) {
if (mo == 0 && day > days_last_mo) {
mo = 1;
day = 1;
}
else if (mo == 1 && day > days_this_mo) {
mo = 2;
day = 1;
}
const int now_yr = (mo == 0 && this_mon == 0) ? last_year : ((mo == 2 && this_mon == 11) ? next_year : this_year);
const int now_mo = mo == 0 ? last_mon : (mo == 1 ? this_mon : next_mon);
const int now_md = day;
const bool off_mo = mo == 0 || mo == 2;
const bool t1_or_t2 = (t1 != NULL && t1_mo == now_mo && t1_yr == now_yr && t1_md == now_md) ||
(t2 != NULL && t2_mo == now_mo && t2_yr == now_yr && t2_md == now_md);
if (off_mo)
ImGui::PushStyleColor(ImGuiCol_Text, col_dis);
if (t1_or_t2) {
ImGui::PushStyleColor(ImGuiCol_Button, col_btn);
ImGui::PushStyleColor(ImGuiCol_Text, col_txt);
}
ImGui::PushID(i*7+j);
ImFormatString(buff,32,"%d",day);
if (now_yr == min_yr-1 || now_yr == max_yr+1) {
ImGui::Dummy(cell_size);
}
else if (ImGui::Button(buff,cell_size) && !clk) {
*t = MakeTime(now_yr, now_mo, now_md);
clk = true;
}
ImGui::PopID();
if (t1_or_t2)
ImGui::PopStyleColor(2);
if (off_mo)
ImGui::PopStyleColor();
if (j != 6)
ImGui::SameLine();
day++;
}
}
}
// month widget
else if (*level == 1) {
*t = FloorTime(*t, ImPlotTimeUnit_Mo);
GetTime(*t, &Tm);
int this_yr = Tm.tm_year + 1900;
ImFormatString(buff, 32, "%d", this_yr);
if (ImGui::Button(buff))
*level = 2;
BeginDisabledControls(this_yr <= min_yr);
ImGui::SameLine(5*cell_size.x);
if (ImGui::ArrowButtonEx("##Up",ImGuiDir_Up,cell_size))
*t = AddTime(*t, ImPlotTimeUnit_Yr, -1);
EndDisabledControls(this_yr <= min_yr);
ImGui::SameLine();
BeginDisabledControls(this_yr >= max_yr);
if (ImGui::ArrowButtonEx("##Down",ImGuiDir_Down,cell_size))
*t = AddTime(*t, ImPlotTimeUnit_Yr, 1);
EndDisabledControls(this_yr >= max_yr);
// ImGui::Dummy(cell_size);
cell_size.x *= 7.0f/4.0f;
cell_size.y *= 7.0f/3.0f;
int mo = 0;
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 4; ++j) {
const bool t1_or_t2 = (t1 != NULL && t1_yr == this_yr && t1_mo == mo) ||
(t2 != NULL && t2_yr == this_yr && t2_mo == mo);
if (t1_or_t2)
ImGui::PushStyleColor(ImGuiCol_Button, col_btn);
if (ImGui::Button(MONTH_ABRVS[mo],cell_size) && !clk) {
*t = MakeTime(this_yr, mo);
*level = 0;
}
if (t1_or_t2)
ImGui::PopStyleColor();
if (j != 3)
ImGui::SameLine();
mo++;
}
}
}
else if (*level == 2) {
*t = FloorTime(*t, ImPlotTimeUnit_Yr);
int this_yr = GetYear(*t);
int yr = this_yr - this_yr % 20;
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
ImFormatString(buff,32,"%d-%d",yr,yr+19);
ImGui::Button(buff);
ImGui::PopItemFlag();
ImGui::SameLine(5*cell_size.x);
BeginDisabledControls(yr <= min_yr);
if (ImGui::ArrowButtonEx("##Up",ImGuiDir_Up,cell_size))
*t = MakeTime(yr-20);
EndDisabledControls(yr <= min_yr);
ImGui::SameLine();
BeginDisabledControls(yr + 20 >= max_yr);
if (ImGui::ArrowButtonEx("##Down",ImGuiDir_Down,cell_size))
*t = MakeTime(yr+20);
EndDisabledControls(yr+ 20 >= max_yr);
// ImGui::Dummy(cell_size);
cell_size.x *= 7.0f/4.0f;
cell_size.y *= 7.0f/5.0f;
for (int i = 0; i < 5; ++i) {
for (int j = 0; j < 4; ++j) {
const bool t1_or_t2 = (t1 != NULL && t1_yr == yr) || (t2 != NULL && t2_yr == yr);
if (t1_or_t2)
ImGui::PushStyleColor(ImGuiCol_Button, col_btn);
ImFormatString(buff,32,"%d",yr);
if (yr<1970||yr>3000) {
ImGui::Dummy(cell_size);
}
else if (ImGui::Button(buff,cell_size)) {
*t = MakeTime(yr);
*level = 1;
}
if (t1_or_t2)
ImGui::PopStyleColor();
if (j != 3)
ImGui::SameLine();
yr++;
}
}
}
ImGui::PopStyleVar();
ImGui::PopStyleColor();
ImGui::EndGroup();
ImGui::PopID();
return clk;
}
bool ShowTimePicker(const char* id, ImPlotTime* t) {
ImGui::PushID(id);
tm& Tm = GImPlot->Tm;
GetTime(*t,&Tm);
static const char* nums[] = { "00","01","02","03","04","05","06","07","08","09",
"10","11","12","13","14","15","16","17","18","19",
"20","21","22","23","24","25","26","27","28","29",
"30","31","32","33","34","35","36","37","38","39",
"40","41","42","43","44","45","46","47","48","49",
"50","51","52","53","54","55","56","57","58","59"};
static const char* am_pm[] = {"am","pm"};
bool hour24 = GImPlot->Style.Use24HourClock;
int hr = hour24 ? Tm.tm_hour : ((Tm.tm_hour == 0 || Tm.tm_hour == 12) ? 12 : Tm.tm_hour % 12);
int min = Tm.tm_min;
int sec = Tm.tm_sec;
int ap = Tm.tm_hour < 12 ? 0 : 1;
bool changed = false;
ImVec2 spacing = ImGui::GetStyle().ItemSpacing;
spacing.x = 0;
float width = ImGui::CalcTextSize("888").x;
float height = ImGui::GetFrameHeight();
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, spacing);
ImGui::PushStyleVar(ImGuiStyleVar_ScrollbarSize,2.0f);
ImGui::PushStyleColor(ImGuiCol_FrameBg, ImVec4(0,0,0,0));
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0,0,0,0));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, ImGui::GetStyleColorVec4(ImGuiCol_ButtonHovered));
ImGui::SetNextItemWidth(width);
if (ImGui::BeginCombo("##hr",nums[hr],ImGuiComboFlags_NoArrowButton)) {
const int ia = hour24 ? 0 : 1;
const int ib = hour24 ? 24 : 13;
for (int i = ia; i < ib; ++i) {
if (ImGui::Selectable(nums[i],i==hr)) {
hr = i;
changed = true;
}
}
ImGui::EndCombo();
}
ImGui::SameLine();
ImGui::Text(":");
ImGui::SameLine();
ImGui::SetNextItemWidth(width);
if (ImGui::BeginCombo("##min",nums[min],ImGuiComboFlags_NoArrowButton)) {
for (int i = 0; i < 60; ++i) {
if (ImGui::Selectable(nums[i],i==min)) {
min = i;
changed = true;
}
}
ImGui::EndCombo();
}
ImGui::SameLine();
ImGui::Text(":");
ImGui::SameLine();
ImGui::SetNextItemWidth(width);
if (ImGui::BeginCombo("##sec",nums[sec],ImGuiComboFlags_NoArrowButton)) {
for (int i = 0; i < 60; ++i) {
if (ImGui::Selectable(nums[i],i==sec)) {
sec = i;
changed = true;
}
}
ImGui::EndCombo();
}
if (!hour24) {
ImGui::SameLine();
if (ImGui::Button(am_pm[ap],ImVec2(0,height))) {
ap = 1 - ap;
changed = true;
}
}
ImGui::PopStyleColor(3);
ImGui::PopStyleVar(2);
ImGui::PopID();
if (changed) {
if (!hour24)
hr = hr % 12 + ap * 12;
Tm.tm_hour = hr;
Tm.tm_min = min;
Tm.tm_sec = sec;
*t = MkTime(&Tm);
}
return changed;
}
void StyleColorsAuto(ImPlotStyle* dst) {
ImPlotStyle* style = dst ? dst : &ImPlot::GetStyle();
ImVec4* colors = style->Colors;
style->MinorAlpha = 0.25f;
colors[ImPlotCol_Line] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Fill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerOutline] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerFill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_ErrorBar] = IMPLOT_AUTO_COL;
colors[ImPlotCol_FrameBg] = IMPLOT_AUTO_COL;
colors[ImPlotCol_PlotBg] = IMPLOT_AUTO_COL;
colors[ImPlotCol_PlotBorder] = IMPLOT_AUTO_COL;
colors[ImPlotCol_LegendBg] = IMPLOT_AUTO_COL;
colors[ImPlotCol_LegendBorder] = IMPLOT_AUTO_COL;
colors[ImPlotCol_LegendText] = IMPLOT_AUTO_COL;
colors[ImPlotCol_TitleText] = IMPLOT_AUTO_COL;
colors[ImPlotCol_InlayText] = IMPLOT_AUTO_COL;
colors[ImPlotCol_PlotBorder] = IMPLOT_AUTO_COL;
colors[ImPlotCol_AxisText] = IMPLOT_AUTO_COL;
colors[ImPlotCol_AxisGrid] = IMPLOT_AUTO_COL;
colors[ImPlotCol_AxisTick] = IMPLOT_AUTO_COL;
colors[ImPlotCol_AxisBg] = IMPLOT_AUTO_COL;
colors[ImPlotCol_AxisBgHovered] = IMPLOT_AUTO_COL;
colors[ImPlotCol_AxisBgActive] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Selection] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Crosshairs] = IMPLOT_AUTO_COL;
}
void StyleColorsClassic(ImPlotStyle* dst) {
ImPlotStyle* style = dst ? dst : &ImPlot::GetStyle();
ImVec4* colors = style->Colors;
style->MinorAlpha = 0.5f;
colors[ImPlotCol_Line] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Fill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerOutline] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerFill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_ErrorBar] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImPlotCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
colors[ImPlotCol_PlotBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.35f);
colors[ImPlotCol_PlotBorder] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
colors[ImPlotCol_LegendBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
colors[ImPlotCol_LegendBorder] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
colors[ImPlotCol_LegendText] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImPlotCol_TitleText] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImPlotCol_InlayText] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImPlotCol_AxisText] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImPlotCol_AxisGrid] = ImVec4(0.90f, 0.90f, 0.90f, 0.25f);
colors[ImPlotCol_AxisTick] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBg] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBgHovered] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBgActive] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_Selection] = ImVec4(0.97f, 0.97f, 0.39f, 1.00f);
colors[ImPlotCol_Crosshairs] = ImVec4(0.50f, 0.50f, 0.50f, 0.75f);
}
void StyleColorsDark(ImPlotStyle* dst) {
ImPlotStyle* style = dst ? dst : &ImPlot::GetStyle();
ImVec4* colors = style->Colors;
style->MinorAlpha = 0.25f;
colors[ImPlotCol_Line] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Fill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerOutline] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerFill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_ErrorBar] = IMPLOT_AUTO_COL;
colors[ImPlotCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
colors[ImPlotCol_PlotBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.50f);
colors[ImPlotCol_PlotBorder] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
colors[ImPlotCol_LegendBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
colors[ImPlotCol_LegendBorder] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
colors[ImPlotCol_LegendText] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_TitleText] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_InlayText] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_AxisText] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_AxisGrid] = ImVec4(1.00f, 1.00f, 1.00f, 0.25f);
colors[ImPlotCol_AxisTick] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBg] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBgHovered] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBgActive] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_Selection] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
colors[ImPlotCol_Crosshairs] = ImVec4(1.00f, 1.00f, 1.00f, 0.50f);
}
void StyleColorsLight(ImPlotStyle* dst) {
ImPlotStyle* style = dst ? dst : &ImPlot::GetStyle();
ImVec4* colors = style->Colors;
style->MinorAlpha = 1.0f;
colors[ImPlotCol_Line] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Fill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerOutline] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerFill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_ErrorBar] = IMPLOT_AUTO_COL;
colors[ImPlotCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_PlotBg] = ImVec4(0.42f, 0.57f, 1.00f, 0.13f);
colors[ImPlotCol_PlotBorder] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImPlotCol_LegendBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
colors[ImPlotCol_LegendBorder] = ImVec4(0.82f, 0.82f, 0.82f, 0.80f);
colors[ImPlotCol_LegendText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_TitleText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_InlayText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_AxisText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_AxisGrid] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_AxisTick] = ImVec4(0.00f, 0.00f, 0.00f, 0.25f);
colors[ImPlotCol_AxisBg] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBgHovered] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_AxisBgActive] = IMPLOT_AUTO_COL; // TODO
colors[ImPlotCol_Selection] = ImVec4(0.82f, 0.64f, 0.03f, 1.00f);
colors[ImPlotCol_Crosshairs] = ImVec4(0.00f, 0.00f, 0.00f, 0.50f);
}
//-----------------------------------------------------------------------------
// [SECTION] Obsolete Functions/Types
//-----------------------------------------------------------------------------
#ifndef IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
bool BeginPlot(const char* title, const char* x_label, const char* y1_label, const ImVec2& size,
ImPlotFlags flags, ImPlotAxisFlags x_flags, ImPlotAxisFlags y1_flags, ImPlotAxisFlags y2_flags, ImPlotAxisFlags y3_flags,
const char* y2_label, const char* y3_label)
{
if (!BeginPlot(title, size, flags))
return false;
SetupAxis(ImAxis_X1, x_label, x_flags);
SetupAxis(ImAxis_Y1, y1_label, y1_flags);
if (ImHasFlag(flags, ImPlotFlags_YAxis2))
SetupAxis(ImAxis_Y2, y2_label, y2_flags);
if (ImHasFlag(flags, ImPlotFlags_YAxis3))
SetupAxis(ImAxis_Y3, y3_label, y3_flags);
return true;
}
#endif
} // namespace ImPlot
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/implot_demo.cpp | // MIT License
// Copyright (c) 2022 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.14
// We define this so that the demo does not accidentally use deprecated API
#ifndef IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#define IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#endif
#include "implot.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#ifdef _MSC_VER
#define sprintf sprintf_s
#endif
#ifndef PI
#define PI 3.14159265358979323846
#endif
#define CHECKBOX_FLAG(flags, flag) ImGui::CheckboxFlags(#flag, (unsigned int*)&flags, flag)
// Encapsulates examples for customizing ImPlot.
namespace MyImPlot {
// Example for Custom Data and Getters section.
struct Vector2f {
Vector2f(float _x, float _y) { x = _x; y = _y; }
float x, y;
};
// Example for Custom Data and Getters section.
struct WaveData {
double X, Amp, Freq, Offset;
WaveData(double x, double amp, double freq, double offset) { X = x; Amp = amp; Freq = freq; Offset = offset; }
};
ImPlotPoint SineWave(int idx, void* wave_data);
ImPlotPoint SawWave(int idx, void* wave_data);
ImPlotPoint Spiral(int idx, void* wave_data);
// Example for Tables section.
void Sparkline(const char* id, const float* values, int count, float min_v, float max_v, int offset, const ImVec4& col, const ImVec2& size);
// Example for Custom Plotters and Tooltips section.
void PlotCandlestick(const char* label_id, const double* xs, const double* opens, const double* closes, const double* lows, const double* highs, int count, bool tooltip = true, float width_percent = 0.25f, ImVec4 bullCol = ImVec4(0,1,0,1), ImVec4 bearCol = ImVec4(1,0,0,1));
// Example for Custom Styles section.
void StyleSeaborn();
} // namespace MyImPlot
namespace ImPlot {
template <typename T>
inline T RandomRange(T min, T max) {
T scale = rand() / (T) RAND_MAX;
return min + scale * ( max - min );
}
ImVec4 RandomColor() {
ImVec4 col;
col.x = RandomRange(0.0f,1.0f);
col.y = RandomRange(0.0f,1.0f);
col.z = RandomRange(0.0f,1.0f);
col.w = 1.0f;
return col;
}
double RandomGauss() {
static double V1, V2, S;
static int phase = 0;
double X;
if(phase == 0) {
do {
double U1 = (double)rand() / RAND_MAX;
double U2 = (double)rand() / RAND_MAX;
V1 = 2 * U1 - 1;
V2 = 2 * U2 - 1;
S = V1 * V1 + V2 * V2;
} while(S >= 1 || S == 0);
X = V1 * sqrt(-2 * log(S) / S);
} else
X = V2 * sqrt(-2 * log(S) / S);
phase = 1 - phase;
return X;
}
template <int N>
struct NormalDistribution {
NormalDistribution(double mean, double sd) {
for (int i = 0; i < N; ++i)
Data[i] = RandomGauss()*sd + mean;
}
double Data[N];
};
// utility structure for realtime plot
struct ScrollingBuffer {
int MaxSize;
int Offset;
ImVector<ImVec2> Data;
ScrollingBuffer(int max_size = 2000) {
MaxSize = max_size;
Offset = 0;
Data.reserve(MaxSize);
}
void AddPoint(float x, float y) {
if (Data.size() < MaxSize)
Data.push_back(ImVec2(x,y));
else {
Data[Offset] = ImVec2(x,y);
Offset = (Offset + 1) % MaxSize;
}
}
void Erase() {
if (Data.size() > 0) {
Data.shrink(0);
Offset = 0;
}
}
};
// utility structure for realtime plot
struct RollingBuffer {
float Span;
ImVector<ImVec2> Data;
RollingBuffer() {
Span = 10.0f;
Data.reserve(2000);
}
void AddPoint(float x, float y) {
float xmod = fmodf(x, Span);
if (!Data.empty() && xmod < Data.back().x)
Data.shrink(0);
Data.push_back(ImVec2(xmod, y));
}
};
// Huge data used by Time Formatting example (~500 MB allocation!)
struct HugeTimeData {
HugeTimeData(double min) {
Ts = new double[Size];
Ys = new double[Size];
for (int i = 0; i < Size; ++i) {
Ts[i] = min + i;
Ys[i] = GetY(Ts[i]);
}
}
~HugeTimeData() { delete[] Ts; delete[] Ys; }
static double GetY(double t) {
return 0.5 + 0.25 * sin(t/86400/12) + 0.005 * sin(t/3600);
}
double* Ts;
double* Ys;
static const int Size = 60*60*24*366;
};
//-----------------------------------------------------------------------------
// [SECTION] Demo Functions
//-----------------------------------------------------------------------------
void Demo_Help() {
ImGui::Text("ABOUT THIS DEMO:");
ImGui::BulletText("Sections below are demonstrating many aspects of the library.");
ImGui::BulletText("The \"Tools\" menu above gives access to: Style Editors (ImPlot/ImGui)\n"
"and Metrics (general purpose Dear ImGui debugging tool).");
ImGui::Separator();
ImGui::Text("PROGRAMMER GUIDE:");
ImGui::BulletText("See the ShowDemoWindow() code in implot_demo.cpp. <- you are here!");
ImGui::BulletText("If you see visual artifacts, do one of the following:");
ImGui::Indent();
ImGui::BulletText("Handle ImGuiBackendFlags_RendererHasVtxOffset for 16-bit indices in your backend.");
ImGui::BulletText("Or, enable 32-bit indices in imconfig.h.");
ImGui::BulletText("Your current configuration is:");
ImGui::Indent();
ImGui::BulletText("ImDrawIdx: %d-bit", (int)(sizeof(ImDrawIdx) * 8));
ImGui::BulletText("ImGuiBackendFlags_RendererHasVtxOffset: %s", (ImGui::GetIO().BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset) ? "True" : "False");
ImGui::Unindent();
ImGui::Unindent();
ImGui::Separator();
ImGui::Text("USER GUIDE:");
ShowUserGuide();
}
//-----------------------------------------------------------------------------
void ButtonSelector(const char* label, ImGuiMouseButton* b) {
ImGui::PushID(label);
if (ImGui::RadioButton("LMB",*b == ImGuiMouseButton_Left))
*b = ImGuiMouseButton_Left;
ImGui::SameLine();
if (ImGui::RadioButton("RMB",*b == ImGuiMouseButton_Right))
*b = ImGuiMouseButton_Right;
ImGui::SameLine();
if (ImGui::RadioButton("MMB",*b == ImGuiMouseButton_Middle))
*b = ImGuiMouseButton_Middle;
ImGui::PopID();
}
void ModSelector(const char* label, int* k) {
ImGui::PushID(label);
ImGui::CheckboxFlags("Ctrl", (unsigned int*)k, ImGuiMod_Ctrl); ImGui::SameLine();
ImGui::CheckboxFlags("Shift", (unsigned int*)k, ImGuiMod_Shift); ImGui::SameLine();
ImGui::CheckboxFlags("Alt", (unsigned int*)k, ImGuiMod_Alt); ImGui::SameLine();
ImGui::CheckboxFlags("Super", (unsigned int*)k, ImGuiMod_Super);
ImGui::PopID();
}
void InputMapping(const char* label, ImGuiMouseButton* b, int* k) {
ImGui::LabelText("##","%s",label);
if (b != NULL) {
ImGui::SameLine(100);
ButtonSelector(label,b);
}
if (k != NULL) {
ImGui::SameLine(300);
ModSelector(label,k);
}
}
void ShowInputMapping() {
ImPlotInputMap& map = ImPlot::GetInputMap();
InputMapping("Pan",&map.Pan,&map.PanMod);
InputMapping("Fit",&map.Fit,NULL);
InputMapping("Select",&map.Select,&map.SelectMod);
InputMapping("SelectHorzMod",NULL,&map.SelectHorzMod);
InputMapping("SelectVertMod",NULL,&map.SelectVertMod);
InputMapping("SelectCancel",&map.SelectCancel,NULL);
InputMapping("Menu",&map.Menu,NULL);
InputMapping("OverrideMod",NULL,&map.OverrideMod);
InputMapping("ZoomMod",NULL,&map.ZoomMod);
ImGui::SliderFloat("ZoomRate",&map.ZoomRate,-1,1);
}
void Demo_Config() {
ImGui::ShowFontSelector("Font");
ImGui::ShowStyleSelector("ImGui Style");
ImPlot::ShowStyleSelector("ImPlot Style");
ImPlot::ShowColormapSelector("ImPlot Colormap");
ImPlot::ShowInputMapSelector("Input Map");
ImGui::Separator();
ImGui::Checkbox("Use Local Time", &ImPlot::GetStyle().UseLocalTime);
ImGui::Checkbox("Use ISO 8601", &ImPlot::GetStyle().UseISO8601);
ImGui::Checkbox("Use 24 Hour Clock", &ImPlot::GetStyle().Use24HourClock);
ImGui::Separator();
if (ImPlot::BeginPlot("Preview")) {
static double now = (double)time(0);
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Time);
ImPlot::SetupAxisLimits(ImAxis_X1, now, now + 24*3600);
for (int i = 0; i < 10; ++i) {
double x[2] = {now, now + 24*3600};
double y[2] = {0,i/9.0};
ImGui::PushID(i);
ImPlot::PlotLine("##Line",x,y,2);
ImGui::PopID();
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LinePlots() {
static float xs1[1001], ys1[1001];
for (int i = 0; i < 1001; ++i) {
xs1[i] = i * 0.001f;
ys1[i] = 0.5f + 0.5f * sinf(50 * (xs1[i] + (float)ImGui::GetTime() / 10));
}
static double xs2[20], ys2[20];
for (int i = 0; i < 20; ++i) {
xs2[i] = i * 1/19.0f;
ys2[i] = xs2[i] * xs2[i];
}
if (ImPlot::BeginPlot("Line Plots")) {
ImPlot::SetupAxes("x","y");
ImPlot::PlotLine("f(x)", xs1, ys1, 1001);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotLine("g(x)", xs2, ys2, 20,ImPlotLineFlags_Segments);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_FilledLinePlots() {
static double xs1[101], ys1[101], ys2[101], ys3[101];
srand(0);
for (int i = 0; i < 101; ++i) {
xs1[i] = (float)i;
ys1[i] = RandomRange(400.0,450.0);
ys2[i] = RandomRange(275.0,350.0);
ys3[i] = RandomRange(150.0,225.0);
}
static bool show_lines = true;
static bool show_fills = true;
static float fill_ref = 0;
static int shade_mode = 0;
static ImPlotShadedFlags flags = 0;
ImGui::Checkbox("Lines",&show_lines); ImGui::SameLine();
ImGui::Checkbox("Fills",&show_fills);
if (show_fills) {
ImGui::SameLine();
if (ImGui::RadioButton("To -INF",shade_mode == 0))
shade_mode = 0;
ImGui::SameLine();
if (ImGui::RadioButton("To +INF",shade_mode == 1))
shade_mode = 1;
ImGui::SameLine();
if (ImGui::RadioButton("To Ref",shade_mode == 2))
shade_mode = 2;
if (shade_mode == 2) {
ImGui::SameLine();
ImGui::SetNextItemWidth(100);
ImGui::DragFloat("##Ref",&fill_ref, 1, -100, 500);
}
}
if (ImPlot::BeginPlot("Stock Prices")) {
ImPlot::SetupAxes("Days","Price");
ImPlot::SetupAxesLimits(0,100,0,500);
if (show_fills) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShaded("Stock 1", xs1, ys1, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref, flags);
ImPlot::PlotShaded("Stock 2", xs1, ys2, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref, flags);
ImPlot::PlotShaded("Stock 3", xs1, ys3, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref, flags);
ImPlot::PopStyleVar();
}
if (show_lines) {
ImPlot::PlotLine("Stock 1", xs1, ys1, 101);
ImPlot::PlotLine("Stock 2", xs1, ys2, 101);
ImPlot::PlotLine("Stock 3", xs1, ys3, 101);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_ShadedPlots() {
static float xs[1001], ys[1001], ys1[1001], ys2[1001], ys3[1001], ys4[1001];
srand(0);
for (int i = 0; i < 1001; ++i) {
xs[i] = i * 0.001f;
ys[i] = 0.25f + 0.25f * sinf(25 * xs[i]) * sinf(5 * xs[i]) + RandomRange(-0.01f, 0.01f);
ys1[i] = ys[i] + RandomRange(0.1f, 0.12f);
ys2[i] = ys[i] - RandomRange(0.1f, 0.12f);
ys3[i] = 0.75f + 0.2f * sinf(25 * xs[i]);
ys4[i] = 0.75f + 0.1f * cosf(25 * xs[i]);
}
static float alpha = 0.25f;
ImGui::DragFloat("Alpha",&alpha,0.01f,0,1);
if (ImPlot::BeginPlot("Shaded Plots")) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, alpha);
ImPlot::PlotShaded("Uncertain Data",xs,ys1,ys2,1001);
ImPlot::PlotLine("Uncertain Data", xs, ys, 1001);
ImPlot::PlotShaded("Overlapping",xs,ys3,ys4,1001);
ImPlot::PlotLine("Overlapping",xs,ys3,1001);
ImPlot::PlotLine("Overlapping",xs,ys4,1001);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_ScatterPlots() {
srand(0);
static float xs1[100], ys1[100];
for (int i = 0; i < 100; ++i) {
xs1[i] = i * 0.01f;
ys1[i] = xs1[i] + 0.1f * ((float)rand() / (float)RAND_MAX);
}
static float xs2[50], ys2[50];
for (int i = 0; i < 50; i++) {
xs2[i] = 0.25f + 0.2f * ((float)rand() / (float)RAND_MAX);
ys2[i] = 0.75f + 0.2f * ((float)rand() / (float)RAND_MAX);
}
if (ImPlot::BeginPlot("Scatter Plot")) {
ImPlot::PlotScatter("Data 1", xs1, ys1, 100);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square, 6, ImPlot::GetColormapColor(1), IMPLOT_AUTO, ImPlot::GetColormapColor(1));
ImPlot::PlotScatter("Data 2", xs2, ys2, 50);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_StairstepPlots() {
static float ys1[21], ys2[21];
for (int i = 0; i < 21; ++i) {
ys1[i] = 0.75f + 0.2f * sinf(10 * i * 0.05f);
ys2[i] = 0.25f + 0.2f * sinf(10 * i * 0.05f);
}
static ImPlotStairsFlags flags = 0;
CHECKBOX_FLAG(flags, ImPlotStairsFlags_Shaded);
if (ImPlot::BeginPlot("Stairstep Plot")) {
ImPlot::SetupAxes("x","f(x)");
ImPlot::SetupAxesLimits(0,1,0,1);
ImPlot::PushStyleColor(ImPlotCol_Line, ImVec4(0.5f,0.5f,0.5f,1.0f));
ImPlot::PlotLine("##1",ys1,21,0.05f);
ImPlot::PlotLine("##2",ys2,21,0.05f);
ImPlot::PopStyleColor();
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.25f);
ImPlot::PlotStairs("Post Step (default)", ys1, 21, 0.05f, 0, flags);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.25f);
ImPlot::PlotStairs("Pre Step", ys2, 21, 0.05f, 0, flags|ImPlotStairsFlags_PreStep);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarPlots() {
static ImS8 data[10] = {1,2,3,4,5,6,7,8,9,10};
if (ImPlot::BeginPlot("Bar Plot")) {
ImPlot::PlotBars("Vertical",data,10,0.7,1);
ImPlot::PlotBars("Horizontal",data,10,0.4,1,ImPlotBarsFlags_Horizontal);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarGroups() {
static ImS8 data[30] = {83, 67, 23, 89, 83, 78, 91, 82, 85, 90, // midterm
80, 62, 56, 99, 55, 78, 88, 78, 90, 100, // final
80, 69, 52, 92, 72, 78, 75, 76, 89, 95}; // course
static const char* ilabels[] = {"Midterm Exam","Final Exam","Course Grade"};
static const char* glabels[] = {"S1","S2","S3","S4","S5","S6","S7","S8","S9","S10"};
static const double positions[] = {0,1,2,3,4,5,6,7,8,9};
static int items = 3;
static int groups = 10;
static float size = 0.67f;
static ImPlotBarGroupsFlags flags = 0;
static bool horz = false;
ImGui::CheckboxFlags("Stacked", (unsigned int*)&flags, ImPlotBarGroupsFlags_Stacked);
ImGui::SameLine();
ImGui::Checkbox("Horizontal",&horz);
ImGui::SliderInt("Items",&items,1,3);
ImGui::SliderFloat("Size",&size,0,1);
if (ImPlot::BeginPlot("Bar Group")) {
ImPlot::SetupLegend(ImPlotLocation_East, ImPlotLegendFlags_Outside);
if (horz) {
ImPlot::SetupAxes("Score","Student",ImPlotAxisFlags_AutoFit,ImPlotAxisFlags_AutoFit);
ImPlot::SetupAxisTicks(ImAxis_Y1,positions, groups, glabels);
ImPlot::PlotBarGroups(ilabels,data,items,groups,size,0,flags|ImPlotBarGroupsFlags_Horizontal);
}
else {
ImPlot::SetupAxes("Student","Score",ImPlotAxisFlags_AutoFit,ImPlotAxisFlags_AutoFit);
ImPlot::SetupAxisTicks(ImAxis_X1,positions, groups, glabels);
ImPlot::PlotBarGroups(ilabels,data,items,groups,size,0,flags);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarStacks() {
static ImPlotColormap Liars = -1;
if (Liars == -1) {
static const ImU32 Liars_Data[6] = { 4282515870, 4282609140, 4287357182, 4294630301, 4294945280, 4294921472 };
Liars = ImPlot::AddColormap("Liars", Liars_Data, 6);
}
static bool diverging = true;
ImGui::Checkbox("Diverging",&diverging);
static const char* politicians[] = {"Trump","Bachman","Cruz","Gingrich","Palin","Santorum","Walker","Perry","Ryan","McCain","Rubio","Romney","Rand Paul","Christie","Biden","Kasich","Sanders","J Bush","H Clinton","Obama"};
static int data_reg[] = {18,26,7,14,10,8,6,11,4,4,3,8,6,8,6,5,0,3,1,2, // Pants on Fire
43,36,30,21,30,27,25,17,11,22,15,16,16,17,12,12,14,6,13,12, // False
16,13,28,22,15,21,15,18,30,17,24,18,13,10,14,15,17,22,14,12, // Mostly False
17,10,13,25,12,22,19,26,23,17,22,27,20,26,29,17,18,22,21,27, // Half True
5,7,16,10,10,12,23,13,17,20,22,16,23,19,20,26,36,29,27,26, // Mostly True
1,8,6,8,23,10,12,15,15,20,14,15,22,20,19,25,15,18,24,21}; // True
static const char* labels_reg[] = {"Pants on Fire","False","Mostly False","Half True","Mostly True","True"};
static int data_div[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // Pants on Fire (dummy, to order legend logically)
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // False (dummy, to order legend logically)
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // Mostly False (dummy, to order legend logically)
-16,-13,-28,-22,-15,-21,-15,-18,-30,-17,-24,-18,-13,-10,-14,-15,-17,-22,-14,-12, // Mostly False
-43,-36,-30,-21,-30,-27,-25,-17,-11,-22,-15,-16,-16,-17,-12,-12,-14,-6,-13,-12, // False
-18,-26,-7,-14,-10,-8,-6,-11,-4,-4,-3,-8,-6,-8,-6,-5,0,-3,-1,-2, // Pants on Fire
17,10,13,25,12,22,19,26,23,17,22,27,20,26,29,17,18,22,21,27, // Half True
5,7,16,10,10,12,23,13,17,20,22,16,23,19,20,26,36,29,27,26, // Mostly True
1,8,6,8,23,10,12,15,15,20,14,15,22,20,19,25,15,18,24,21}; // True
static const char* labels_div[] = {"Pants on Fire","False","Mostly False","Mostly False","False","Pants on Fire","Half True","Mostly True","True"};
ImPlot::PushColormap(Liars);
if (ImPlot::BeginPlot("PolitiFact: Who Lies More?",ImVec2(-1,400),ImPlotFlags_NoMouseText)) {
ImPlot::SetupLegend(ImPlotLocation_South, ImPlotLegendFlags_Outside|ImPlotLegendFlags_Horizontal);
ImPlot::SetupAxes(NULL,NULL,ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_Invert);
ImPlot::SetupAxisTicks(ImAxis_Y1,0,19,20,politicians,false);
if (diverging)
ImPlot::PlotBarGroups(labels_div,data_div,9,20,0.75,0,ImPlotBarGroupsFlags_Stacked|ImPlotBarGroupsFlags_Horizontal);
else
ImPlot::PlotBarGroups(labels_reg,data_reg,6,20,0.75,0,ImPlotBarGroupsFlags_Stacked|ImPlotBarGroupsFlags_Horizontal);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_ErrorBars() {
static float xs[5] = {1,2,3,4,5};
static float bar[5] = {1,2,5,3,4};
static float lin1[5] = {8,8,9,7,8};
static float lin2[5] = {6,7,6,9,6};
static float err1[5] = {0.2f, 0.4f, 0.2f, 0.6f, 0.4f};
static float err2[5] = {0.4f, 0.2f, 0.4f, 0.8f, 0.6f};
static float err3[5] = {0.09f, 0.14f, 0.09f, 0.12f, 0.16f};
static float err4[5] = {0.02f, 0.08f, 0.15f, 0.05f, 0.2f};
if (ImPlot::BeginPlot("##ErrorBars")) {
ImPlot::SetupAxesLimits(0, 6, 0, 10);
ImPlot::PlotBars("Bar", xs, bar, 5, 0.5f);
ImPlot::PlotErrorBars("Bar", xs, bar, err1, 5);
ImPlot::SetNextErrorBarStyle(ImPlot::GetColormapColor(1), 0);
ImPlot::PlotErrorBars("Line", xs, lin1, err1, err2, 5);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square);
ImPlot::PlotLine("Line", xs, lin1, 5);
ImPlot::PushStyleColor(ImPlotCol_ErrorBar, ImPlot::GetColormapColor(2));
ImPlot::PlotErrorBars("Scatter", xs, lin2, err2, 5);
ImPlot::PlotErrorBars("Scatter", xs, lin2, err3, err4, 5, ImPlotErrorBarsFlags_Horizontal);
ImPlot::PopStyleColor();
ImPlot::PlotScatter("Scatter", xs, lin2, 5);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_StemPlots() {
static double xs[51], ys1[51], ys2[51];
for (int i = 0; i < 51; ++i) {
xs[i] = i * 0.02;
ys1[i] = 1.0 + 0.5 * sin(25*xs[i])*cos(2*xs[i]);
ys2[i] = 0.5 + 0.25 * sin(10*xs[i]) * sin(xs[i]);
}
if (ImPlot::BeginPlot("Stem Plots")) {
ImPlot::SetupAxisLimits(ImAxis_X1,0,1.0);
ImPlot::SetupAxisLimits(ImAxis_Y1,0,1.6);
ImPlot::PlotStems("Stems 1",xs,ys1,51);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotStems("Stems 2", xs, ys2,51);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_InfiniteLines() {
static double vals[] = {0.25, 0.5, 0.75};
if (ImPlot::BeginPlot("##Infinite")) {
ImPlot::SetupAxes(NULL,NULL,ImPlotAxisFlags_NoInitialFit,ImPlotAxisFlags_NoInitialFit);
ImPlot::PlotInfLines("Vertical",vals,3);
ImPlot::PlotInfLines("Horizontal",vals,3,ImPlotInfLinesFlags_Horizontal);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_PieCharts() {
static const char* labels1[] = {"Frogs","Hogs","Dogs","Logs"};
static float data1[] = {0.15f, 0.30f, 0.2f, 0.05f};
static ImPlotPieChartFlags flags = 0;
ImGui::SetNextItemWidth(250);
ImGui::DragFloat4("Values", data1, 0.01f, 0, 1);
if ((data1[0] + data1[1] + data1[2] + data1[3]) < 1) {
ImGui::SameLine();
CHECKBOX_FLAG(flags,ImPlotPieChartFlags_Normalize);
}
if (ImPlot::BeginPlot("##Pie1", ImVec2(250,250), ImPlotFlags_Equal | ImPlotFlags_NoMouseText)) {
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PlotPieChart(labels1, data1, 4, 0.5, 0.5, 0.4, "%.2f", 90, flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
static const char* labels2[] = {"A","B","C","D","E"};
static int data2[] = {1,1,2,3,5};
ImPlot::PushColormap(ImPlotColormap_Pastel);
if (ImPlot::BeginPlot("##Pie2", ImVec2(250,250), ImPlotFlags_Equal | ImPlotFlags_NoMouseText)) {
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PlotPieChart(labels2, data2, 5, 0.5, 0.5, 0.4, "%.0f", 180, flags);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_Heatmaps() {
static float values1[7][7] = {{0.8f, 2.4f, 2.5f, 3.9f, 0.0f, 4.0f, 0.0f},
{2.4f, 0.0f, 4.0f, 1.0f, 2.7f, 0.0f, 0.0f},
{1.1f, 2.4f, 0.8f, 4.3f, 1.9f, 4.4f, 0.0f},
{0.6f, 0.0f, 0.3f, 0.0f, 3.1f, 0.0f, 0.0f},
{0.7f, 1.7f, 0.6f, 2.6f, 2.2f, 6.2f, 0.0f},
{1.3f, 1.2f, 0.0f, 0.0f, 0.0f, 3.2f, 5.1f},
{0.1f, 2.0f, 0.0f, 1.4f, 0.0f, 1.9f, 6.3f}};
static float scale_min = 0;
static float scale_max = 6.3f;
static const char* xlabels[] = {"C1","C2","C3","C4","C5","C6","C7"};
static const char* ylabels[] = {"R1","R2","R3","R4","R5","R6","R7"};
static ImPlotColormap map = ImPlotColormap_Viridis;
if (ImPlot::ColormapButton(ImPlot::GetColormapName(map),ImVec2(225,0),map)) {
map = (map + 1) % ImPlot::GetColormapCount();
// We bust the color cache of our plots so that item colors will
// resample the new colormap in the event that they have already
// been created. See documentation in implot.h.
BustColorCache("##Heatmap1");
BustColorCache("##Heatmap2");
}
ImGui::SameLine();
ImGui::LabelText("##Colormap Index", "%s", "Change Colormap");
ImGui::SetNextItemWidth(225);
ImGui::DragFloatRange2("Min / Max",&scale_min, &scale_max, 0.01f, -20, 20);
static ImPlotHeatmapFlags hm_flags = 0;
ImGui::CheckboxFlags("Column Major", (unsigned int*)&hm_flags, ImPlotHeatmapFlags_ColMajor);
static ImPlotAxisFlags axes_flags = ImPlotAxisFlags_Lock | ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_NoTickMarks;
ImPlot::PushColormap(map);
if (ImPlot::BeginPlot("##Heatmap1",ImVec2(225,225),ImPlotFlags_NoLegend|ImPlotFlags_NoMouseText)) {
ImPlot::SetupAxes(NULL, NULL, axes_flags, axes_flags);
ImPlot::SetupAxisTicks(ImAxis_X1,0 + 1.0/14.0, 1 - 1.0/14.0, 7, xlabels);
ImPlot::SetupAxisTicks(ImAxis_Y1,1 - 1.0/14.0, 0 + 1.0/14.0, 7, ylabels);
ImPlot::PlotHeatmap("heat",values1[0],7,7,scale_min,scale_max,"%g",ImPlotPoint(0,0),ImPlotPoint(1,1),hm_flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ColormapScale("##HeatScale",scale_min, scale_max, ImVec2(60,225));
ImGui::SameLine();
const int size = 80;
static double values2[size*size];
srand((unsigned int)(ImGui::GetTime()*1000000));
for (int i = 0; i < size*size; ++i)
values2[i] = RandomRange(0.0,1.0);
if (ImPlot::BeginPlot("##Heatmap2",ImVec2(225,225))) {
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(-1,1,-1,1);
ImPlot::PlotHeatmap("heat1",values2,size,size,0,1,NULL);
ImPlot::PlotHeatmap("heat2",values2,size,size,0,1,NULL, ImPlotPoint(-1,-1), ImPlotPoint(0,0));
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_Histogram() {
static ImPlotHistogramFlags hist_flags = ImPlotHistogramFlags_Density;
static int bins = 50;
static double mu = 5;
static double sigma = 2;
ImGui::SetNextItemWidth(200);
if (ImGui::RadioButton("Sqrt",bins==ImPlotBin_Sqrt)) { bins = ImPlotBin_Sqrt; } ImGui::SameLine();
if (ImGui::RadioButton("Sturges",bins==ImPlotBin_Sturges)) { bins = ImPlotBin_Sturges; } ImGui::SameLine();
if (ImGui::RadioButton("Rice",bins==ImPlotBin_Rice)) { bins = ImPlotBin_Rice; } ImGui::SameLine();
if (ImGui::RadioButton("Scott",bins==ImPlotBin_Scott)) { bins = ImPlotBin_Scott; } ImGui::SameLine();
if (ImGui::RadioButton("N Bins",bins>=0)) { bins = 50; }
if (bins>=0) {
ImGui::SameLine();
ImGui::SetNextItemWidth(200);
ImGui::SliderInt("##Bins", &bins, 1, 100);
}
ImGui::CheckboxFlags("Horizontal", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Horizontal);
ImGui::SameLine();
ImGui::CheckboxFlags("Density", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Density);
ImGui::SameLine();
ImGui::CheckboxFlags("Cumulative", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Cumulative);
static bool range = false;
ImGui::Checkbox("Range", &range);
static float rmin = -3;
static float rmax = 13;
if (range) {
ImGui::SameLine();
ImGui::SetNextItemWidth(200);
ImGui::DragFloat2("##Range",&rmin,0.1f,-3,13);
ImGui::SameLine();
ImGui::CheckboxFlags("Exclude Outliers", (unsigned int*)&hist_flags, ImPlotHistogramFlags_NoOutliers);
}
static NormalDistribution<10000> dist(mu, sigma);
static double x[100];
static double y[100];
if (hist_flags & ImPlotHistogramFlags_Density) {
for (int i = 0; i < 100; ++i) {
x[i] = -3 + 16 * (double)i/99.0;
y[i] = exp( - (x[i]-mu)*(x[i]-mu) / (2*sigma*sigma)) / (sigma * sqrt(2*3.141592653589793238));
}
if (hist_flags & ImPlotHistogramFlags_Cumulative) {
for (int i = 1; i < 100; ++i)
y[i] += y[i-1];
for (int i = 0; i < 100; ++i)
y[i] /= y[99];
}
}
if (ImPlot::BeginPlot("##Histograms")) {
ImPlot::SetupAxes(NULL,NULL,ImPlotAxisFlags_AutoFit,ImPlotAxisFlags_AutoFit);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL,0.5f);
ImPlot::PlotHistogram("Empirical", dist.Data, 10000, bins, 1.0, range ? ImPlotRange(rmin,rmax) : ImPlotRange(), hist_flags);
if ((hist_flags & ImPlotHistogramFlags_Density) && !(hist_flags & ImPlotHistogramFlags_NoOutliers)) {
if (hist_flags & ImPlotHistogramFlags_Horizontal)
ImPlot::PlotLine("Theoretical",y,x,100);
else
ImPlot::PlotLine("Theoretical",x,y,100);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Histogram2D() {
static int count = 50000;
static int xybins[2] = {100,100};
static ImPlotHistogramFlags hist_flags = 0;
ImGui::SliderInt("Count",&count,100,100000);
ImGui::SliderInt2("Bins",xybins,1,500);
ImGui::SameLine();
ImGui::CheckboxFlags("Density", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Density);
static NormalDistribution<100000> dist1(1, 2);
static NormalDistribution<100000> dist2(1, 1);
double max_count = 0;
ImPlotAxisFlags flags = ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_Foreground;
ImPlot::PushColormap("Hot");
if (ImPlot::BeginPlot("##Hist2D",ImVec2(ImGui::GetContentRegionAvail().x-100-ImGui::GetStyle().ItemSpacing.x,0))) {
ImPlot::SetupAxes(NULL, NULL, flags, flags);
ImPlot::SetupAxesLimits(-6,6,-6,6);
max_count = ImPlot::PlotHistogram2D("Hist2D",dist1.Data,dist2.Data,count,xybins[0],xybins[1],ImPlotRect(-6,6,-6,6), hist_flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ColormapScale(hist_flags & ImPlotHistogramFlags_Density ? "Density" : "Count",0,max_count,ImVec2(100,0));
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_DigitalPlots() {
ImGui::BulletText("Digital plots do not respond to Y drag and zoom, so that");
ImGui::Indent();
ImGui::Text("you can drag analog plots over the rising/falling digital edge.");
ImGui::Unindent();
static bool paused = false;
static ScrollingBuffer dataDigital[2];
static ScrollingBuffer dataAnalog[2];
static bool showDigital[2] = {true, false};
static bool showAnalog[2] = {true, false};
char label[32];
ImGui::Checkbox("digital_0", &showDigital[0]); ImGui::SameLine();
ImGui::Checkbox("digital_1", &showDigital[1]); ImGui::SameLine();
ImGui::Checkbox("analog_0", &showAnalog[0]); ImGui::SameLine();
ImGui::Checkbox("analog_1", &showAnalog[1]);
static float t = 0;
if (!paused) {
t += ImGui::GetIO().DeltaTime;
//digital signal values
if (showDigital[0])
dataDigital[0].AddPoint(t, sinf(2*t) > 0.45);
if (showDigital[1])
dataDigital[1].AddPoint(t, sinf(2*t) < 0.45);
//Analog signal values
if (showAnalog[0])
dataAnalog[0].AddPoint(t, sinf(2*t));
if (showAnalog[1])
dataAnalog[1].AddPoint(t, cosf(2*t));
}
if (ImPlot::BeginPlot("##Digital")) {
ImPlot::SetupAxisLimits(ImAxis_X1, t - 10.0, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1, -1, 1);
for (int i = 0; i < 2; ++i) {
if (showDigital[i] && dataDigital[i].Data.size() > 0) {
snprintf(label, sizeof(label), "digital_%d", i);
ImPlot::PlotDigital(label, &dataDigital[i].Data[0].x, &dataDigital[i].Data[0].y, dataDigital[i].Data.size(), 0, dataDigital[i].Offset, 2 * sizeof(float));
}
}
for (int i = 0; i < 2; ++i) {
if (showAnalog[i]) {
snprintf(label, sizeof(label), "analog_%d", i);
if (dataAnalog[i].Data.size() > 0)
ImPlot::PlotLine(label, &dataAnalog[i].Data[0].x, &dataAnalog[i].Data[0].y, dataAnalog[i].Data.size(), 0, dataAnalog[i].Offset, 2 * sizeof(float));
}
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Images() {
ImGui::BulletText("Below we are displaying the font texture, which is the only texture we have\naccess to in this demo.");
ImGui::BulletText("Use the 'ImTextureID' type as storage to pass pointers or identifiers to your\nown texture data.");
ImGui::BulletText("See ImGui Wiki page 'Image Loading and Displaying Examples'.");
static ImVec2 bmin(0,0);
static ImVec2 bmax(1,1);
static ImVec2 uv0(0,0);
static ImVec2 uv1(1,1);
static ImVec4 tint(1,1,1,1);
ImGui::SliderFloat2("Min", &bmin.x, -2, 2, "%.1f");
ImGui::SliderFloat2("Max", &bmax.x, -2, 2, "%.1f");
ImGui::SliderFloat2("UV0", &uv0.x, -2, 2, "%.1f");
ImGui::SliderFloat2("UV1", &uv1.x, -2, 2, "%.1f");
ImGui::ColorEdit4("Tint",&tint.x);
if (ImPlot::BeginPlot("##image")) {
ImPlot::PlotImage("my image",ImGui::GetIO().Fonts->TexID, bmin, bmax, uv0, uv1, tint);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_RealtimePlots() {
ImGui::BulletText("Move your mouse to change the data!");
ImGui::BulletText("This example assumes 60 FPS. Higher FPS requires larger buffer size.");
static ScrollingBuffer sdata1, sdata2;
static RollingBuffer rdata1, rdata2;
ImVec2 mouse = ImGui::GetMousePos();
static float t = 0;
t += ImGui::GetIO().DeltaTime;
sdata1.AddPoint(t, mouse.x * 0.0005f);
rdata1.AddPoint(t, mouse.x * 0.0005f);
sdata2.AddPoint(t, mouse.y * 0.0005f);
rdata2.AddPoint(t, mouse.y * 0.0005f);
static float history = 10.0f;
ImGui::SliderFloat("History",&history,1,30,"%.1f s");
rdata1.Span = history;
rdata2.Span = history;
static ImPlotAxisFlags flags = ImPlotAxisFlags_NoTickLabels;
if (ImPlot::BeginPlot("##Scrolling", ImVec2(-1,150))) {
ImPlot::SetupAxes(NULL, NULL, flags, flags);
ImPlot::SetupAxisLimits(ImAxis_X1,t - history, t, ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1,0,1);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL,0.5f);
ImPlot::PlotShaded("Mouse X", &sdata1.Data[0].x, &sdata1.Data[0].y, sdata1.Data.size(), -INFINITY, 0, sdata1.Offset, 2 * sizeof(float));
ImPlot::PlotLine("Mouse Y", &sdata2.Data[0].x, &sdata2.Data[0].y, sdata2.Data.size(), 0, sdata2.Offset, 2*sizeof(float));
ImPlot::EndPlot();
}
if (ImPlot::BeginPlot("##Rolling", ImVec2(-1,150))) {
ImPlot::SetupAxes(NULL, NULL, flags, flags);
ImPlot::SetupAxisLimits(ImAxis_X1,0,history, ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1,0,1);
ImPlot::PlotLine("Mouse X", &rdata1.Data[0].x, &rdata1.Data[0].y, rdata1.Data.size(), 0, 0, 2 * sizeof(float));
ImPlot::PlotLine("Mouse Y", &rdata2.Data[0].x, &rdata2.Data[0].y, rdata2.Data.size(), 0, 0, 2 * sizeof(float));
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_MarkersAndText() {
static float mk_size = ImPlot::GetStyle().MarkerSize;
static float mk_weight = ImPlot::GetStyle().MarkerWeight;
ImGui::DragFloat("Marker Size",&mk_size,0.1f,2.0f,10.0f,"%.2f px");
ImGui::DragFloat("Marker Weight", &mk_weight,0.05f,0.5f,3.0f,"%.2f px");
if (ImPlot::BeginPlot("##MarkerStyles", ImVec2(-1,0), ImPlotFlags_CanvasOnly)) {
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 10, 0, 12);
ImS8 xs[2] = {1,4};
ImS8 ys[2] = {10,11};
// filled markers
for (int m = 0; m < ImPlotMarker_COUNT; ++m) {
ImGui::PushID(m);
ImPlot::SetNextMarkerStyle(m, mk_size, IMPLOT_AUTO_COL, mk_weight);
ImPlot::PlotLine("##Filled", xs, ys, 2);
ImGui::PopID();
ys[0]--; ys[1]--;
}
xs[0] = 6; xs[1] = 9; ys[0] = 10; ys[1] = 11;
// open markers
for (int m = 0; m < ImPlotMarker_COUNT; ++m) {
ImGui::PushID(m);
ImPlot::SetNextMarkerStyle(m, mk_size, ImVec4(0,0,0,0), mk_weight);
ImPlot::PlotLine("##Open", xs, ys, 2);
ImGui::PopID();
ys[0]--; ys[1]--;
}
ImPlot::PlotText("Filled Markers", 2.5f, 6.0f);
ImPlot::PlotText("Open Markers", 7.5f, 6.0f);
ImPlot::PushStyleColor(ImPlotCol_InlayText, ImVec4(1,0,1,1));
ImPlot::PlotText("Vertical Text", 5.0f, 6.0f, ImVec2(0,0), ImPlotTextFlags_Vertical);
ImPlot::PopStyleColor();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_NaNValues() {
static bool include_nan = true;
static ImPlotLineFlags flags = 0;
float data1[5] = {0.0f,0.25f,0.5f,0.75f,1.0f};
float data2[5] = {0.0f,0.25f,0.5f,0.75f,1.0f};
if (include_nan)
data1[2] = NAN;
ImGui::Checkbox("Include NaN",&include_nan);
ImGui::SameLine();
ImGui::CheckboxFlags("Skip NaN", (unsigned int*)&flags, ImPlotLineFlags_SkipNaN);
if (ImPlot::BeginPlot("##NaNValues")) {
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square);
ImPlot::PlotLine("line", data1, data2, 5, flags);
ImPlot::PlotBars("bars", data1, 5);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LogScale() {
static double xs[1001], ys1[1001], ys2[1001], ys3[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = i*0.1f;
ys1[i] = sin(xs[i]) + 1;
ys2[i] = log(xs[i]);
ys3[i] = pow(10.0, xs[i]);
}
if (ImPlot::BeginPlot("Log Plot", ImVec2(-1,0))) {
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Log10);
ImPlot::SetupAxesLimits(0.1, 100, 0, 10);
ImPlot::PlotLine("f(x) = x", xs, xs, 1001);
ImPlot::PlotLine("f(x) = sin(x)+1", xs, ys1, 1001);
ImPlot::PlotLine("f(x) = log(x)", xs, ys2, 1001);
ImPlot::PlotLine("f(x) = 10^x", xs, ys3, 21);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_SymmetricLogScale() {
static double xs[1001], ys1[1001], ys2[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = i*0.1f-50;
ys1[i] = sin(xs[i]);
ys2[i] = i*0.002 - 1;
}
if (ImPlot::BeginPlot("SymLog Plot", ImVec2(-1,0))) {
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_SymLog);
ImPlot::PlotLine("f(x) = a*x+b",xs,ys2,1001);
ImPlot::PlotLine("f(x) = sin(x)",xs,ys1,1001);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_TimeScale() {
static double t_min = 1609459200; // 01/01/2021 @ 12:00:00am (UTC)
static double t_max = 1640995200; // 01/01/2022 @ 12:00:00am (UTC)
ImGui::BulletText("When ImPlotAxisFlags_Time is enabled on the X-Axis, values are interpreted as\n"
"UNIX timestamps in seconds and axis labels are formated as date/time.");
ImGui::BulletText("By default, labels are in UTC time but can be set to use local time instead.");
ImGui::Checkbox("Local Time",&ImPlot::GetStyle().UseLocalTime);
ImGui::SameLine();
ImGui::Checkbox("ISO 8601",&ImPlot::GetStyle().UseISO8601);
ImGui::SameLine();
ImGui::Checkbox("24 Hour Clock",&ImPlot::GetStyle().Use24HourClock);
static HugeTimeData* data = NULL;
if (data == NULL) {
ImGui::SameLine();
if (ImGui::Button("Generate Huge Data (~500MB!)")) {
static HugeTimeData sdata(t_min);
data = &sdata;
}
}
if (ImPlot::BeginPlot("##Time", ImVec2(-1,0))) {
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Time);
ImPlot::SetupAxesLimits(t_min,t_max,0,1);
if (data != NULL) {
// downsample our data
int downsample = (int)ImPlot::GetPlotLimits().X.Size() / 1000 + 1;
int start = (int)(ImPlot::GetPlotLimits().X.Min - t_min);
start = start < 0 ? 0 : start > HugeTimeData::Size - 1 ? HugeTimeData::Size - 1 : start;
int end = (int)(ImPlot::GetPlotLimits().X.Max - t_min) + 1000;
end = end < 0 ? 0 : end > HugeTimeData::Size - 1 ? HugeTimeData::Size - 1 : end;
int size = (end - start)/downsample;
// plot it
ImPlot::PlotLine("Time Series", &data->Ts[start], &data->Ys[start], size, 0, 0, sizeof(double)*downsample);
}
// plot time now
double t_now = (double)time(0);
double y_now = HugeTimeData::GetY(t_now);
ImPlot::PlotScatter("Now",&t_now,&y_now,1);
ImPlot::Annotation(t_now,y_now,ImPlot::GetLastItemColor(),ImVec2(10,10),false,"Now");
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
static inline double TransformForward_Sqrt(double v, void*) {
return sqrt(v);
}
static inline double TransformInverse_Sqrt(double v, void*) {
return v*v;
}
void Demo_CustomScale() {
static float v[100];
for (int i = 0; i < 100; ++i) {
v[i] = i*0.01f;
}
if (ImPlot::BeginPlot("Sqrt")) {
ImPlot::SetupAxis(ImAxis_X1, "Linear");
ImPlot::SetupAxis(ImAxis_Y1, "Sqrt");
ImPlot::SetupAxisScale(ImAxis_Y1, TransformForward_Sqrt, TransformInverse_Sqrt);
ImPlot::SetupAxisLimitsConstraints(ImAxis_Y1, 0, INFINITY);
ImPlot::PlotLine("##data",v,v,100);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_MultipleAxes() {
static float xs[1001], xs2[1001], ys1[1001], ys2[1001], ys3[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = (i*0.1f);
xs2[i] = xs[i] + 10.0f;
ys1[i] = sinf(xs[i]) * 3 + 1;
ys2[i] = cosf(xs[i]) * 0.2f + 0.5f;
ys3[i] = sinf(xs[i]+0.5f) * 100 + 200;
}
static bool x2_axis = true;
static bool y2_axis = true;
static bool y3_axis = true;
ImGui::Checkbox("X-Axis 2", &x2_axis);
ImGui::SameLine();
ImGui::Checkbox("Y-Axis 2", &y2_axis);
ImGui::SameLine();
ImGui::Checkbox("Y-Axis 3", &y3_axis);
ImGui::BulletText("You can drag axes to the opposite side of the plot.");
ImGui::BulletText("Hover over legend items to see which axis they are plotted on.");
if (ImPlot::BeginPlot("Multi-Axis Plot", ImVec2(-1,0))) {
ImPlot::SetupAxes("X-Axis 1", "Y-Axis 1");
ImPlot::SetupAxesLimits(0, 100, 0, 10);
if (x2_axis) {
ImPlot::SetupAxis(ImAxis_X2, "X-Axis 2",ImPlotAxisFlags_AuxDefault);
ImPlot::SetupAxisLimits(ImAxis_X2, 0, 100);
}
if (y2_axis) {
ImPlot::SetupAxis(ImAxis_Y2, "Y-Axis 2",ImPlotAxisFlags_AuxDefault);
ImPlot::SetupAxisLimits(ImAxis_Y2, 0, 1);
}
if (y3_axis) {
ImPlot::SetupAxis(ImAxis_Y3, "Y-Axis 3",ImPlotAxisFlags_AuxDefault);
ImPlot::SetupAxisLimits(ImAxis_Y3, 0, 300);
}
ImPlot::PlotLine("f(x) = x", xs, xs, 1001);
if (x2_axis) {
ImPlot::SetAxes(ImAxis_X2, ImAxis_Y1);
ImPlot::PlotLine("f(x) = sin(x)*3+1", xs2, ys1, 1001);
}
if (y2_axis) {
ImPlot::SetAxes(ImAxis_X1, ImAxis_Y2);
ImPlot::PlotLine("f(x) = cos(x)*.2+.5", xs, ys2, 1001);
}
if (y3_axis) {
ImPlot::SetAxes(ImAxis_X2, ImAxis_Y3);
ImPlot::PlotLine("f(x) = sin(x+.5)*100+200 ", xs2, ys3, 1001);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LinkedAxes() {
static ImPlotRect lims(0,1,0,1);
static bool linkx = true, linky = true;
int data[2] = {0,1};
ImGui::Checkbox("Link X", &linkx);
ImGui::SameLine();
ImGui::Checkbox("Link Y", &linky);
ImGui::DragScalarN("Limits",ImGuiDataType_Double,&lims.X.Min,4,0.01f);
if (BeginAlignedPlots("AlignedGroup")) {
if (ImPlot::BeginPlot("Plot A")) {
ImPlot::SetupAxisLinks(ImAxis_X1, linkx ? &lims.X.Min : NULL, linkx ? &lims.X.Max : NULL);
ImPlot::SetupAxisLinks(ImAxis_Y1, linky ? &lims.Y.Min : NULL, linky ? &lims.Y.Max : NULL);
ImPlot::PlotLine("Line",data,2);
ImPlot::EndPlot();
}
if (ImPlot::BeginPlot("Plot B")) {
ImPlot::SetupAxisLinks(ImAxis_X1, linkx ? &lims.X.Min : NULL, linkx ? &lims.X.Max : NULL);
ImPlot::SetupAxisLinks(ImAxis_Y1, linky ? &lims.Y.Min : NULL, linky ? &lims.Y.Max : NULL);
ImPlot::PlotLine("Line",data,2);
ImPlot::EndPlot();
}
ImPlot::EndAlignedPlots();
}
}
//-----------------------------------------------------------------------------
void Demo_AxisConstraints() {
static float constraints[4] = {-10,10,1,20};
static ImPlotAxisFlags flags;
ImGui::DragFloat2("Limits Constraints", &constraints[0], 0.01f);
ImGui::DragFloat2("Zoom Constraints", &constraints[2], 0.01f);
CHECKBOX_FLAG(flags, ImPlotAxisFlags_PanStretch);
if (ImPlot::BeginPlot("##AxisConstraints",ImVec2(-1,0))) {
ImPlot::SetupAxes("X","Y",flags,flags);
ImPlot::SetupAxesLimits(-1,1,-1,1);
ImPlot::SetupAxisLimitsConstraints(ImAxis_X1,constraints[0], constraints[1]);
ImPlot::SetupAxisZoomConstraints(ImAxis_X1,constraints[2], constraints[3]);
ImPlot::SetupAxisLimitsConstraints(ImAxis_Y1,constraints[0], constraints[1]);
ImPlot::SetupAxisZoomConstraints(ImAxis_Y1,constraints[2], constraints[3]);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_EqualAxes() {
ImGui::BulletText("Equal constraint applies to axis pairs (e.g ImAxis_X1/Y1, ImAxis_X2/Y2)");
static double xs1[360], ys1[360];
for (int i = 0; i < 360; ++i) {
double angle = i * 2 * PI / 359.0;
xs1[i] = cos(angle); ys1[i] = sin(angle);
}
float xs2[] = {-1,0,1,0,-1};
float ys2[] = {0,1,0,-1,0};
if (ImPlot::BeginPlot("##EqualAxes",ImVec2(-1,0),ImPlotFlags_Equal)) {
ImPlot::SetupAxis(ImAxis_X2, NULL, ImPlotAxisFlags_AuxDefault);
ImPlot::SetupAxis(ImAxis_Y2, NULL, ImPlotAxisFlags_AuxDefault);
ImPlot::PlotLine("Circle",xs1,ys1,360);
ImPlot::SetAxes(ImAxis_X2, ImAxis_Y2);
ImPlot::PlotLine("Diamond",xs2,ys2,5);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_AutoFittingData() {
ImGui::BulletText("The Y-axis has been configured to auto-fit to only the data visible in X-axis range.");
ImGui::BulletText("Zoom and pan the X-axis. Disable Stems to see a difference in fit.");
ImGui::BulletText("If ImPlotAxisFlags_RangeFit is disabled, the axis will fit ALL data.");
static ImPlotAxisFlags xflags = ImPlotAxisFlags_None;
static ImPlotAxisFlags yflags = ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_RangeFit;
ImGui::TextUnformatted("X: "); ImGui::SameLine();
ImGui::CheckboxFlags("ImPlotAxisFlags_AutoFit##X", (unsigned int*)&xflags, ImPlotAxisFlags_AutoFit); ImGui::SameLine();
ImGui::CheckboxFlags("ImPlotAxisFlags_RangeFit##X", (unsigned int*)&xflags, ImPlotAxisFlags_RangeFit);
ImGui::TextUnformatted("Y: "); ImGui::SameLine();
ImGui::CheckboxFlags("ImPlotAxisFlags_AutoFit##Y", (unsigned int*)&yflags, ImPlotAxisFlags_AutoFit); ImGui::SameLine();
ImGui::CheckboxFlags("ImPlotAxisFlags_RangeFit##Y", (unsigned int*)&yflags, ImPlotAxisFlags_RangeFit);
static double data[101];
srand(0);
for (int i = 0; i < 101; ++i)
data[i] = 1 + sin(i/10.0f);
if (ImPlot::BeginPlot("##DataFitting")) {
ImPlot::SetupAxes("X","Y",xflags,yflags);
ImPlot::PlotLine("Line",data,101);
ImPlot::PlotStems("Stems",data,101);
ImPlot::EndPlot();
};
}
//-----------------------------------------------------------------------------
ImPlotPoint SinewaveGetter(int i, void* data) {
float f = *(float*)data;
return ImPlotPoint(i,sinf(f*i));
}
void Demo_SubplotsSizing() {
static ImPlotSubplotFlags flags = ImPlotSubplotFlags_None;
ImGui::CheckboxFlags("ImPlotSubplotFlags_NoResize", (unsigned int*)&flags, ImPlotSubplotFlags_NoResize);
ImGui::CheckboxFlags("ImPlotSubplotFlags_NoTitle", (unsigned int*)&flags, ImPlotSubplotFlags_NoTitle);
static int rows = 3;
static int cols = 3;
ImGui::SliderInt("Rows",&rows,1,5);
ImGui::SliderInt("Cols",&cols,1,5);
static float rratios[] = {5,1,1,1,1,1};
static float cratios[] = {5,1,1,1,1,1};
ImGui::DragScalarN("Row Ratios",ImGuiDataType_Float,rratios,rows,0.01f,0);
ImGui::DragScalarN("Col Ratios",ImGuiDataType_Float,cratios,cols,0.01f,0);
if (ImPlot::BeginSubplots("My Subplots", rows, cols, ImVec2(-1,400), flags, rratios, cratios)) {
for (int i = 0; i < rows*cols; ++i) {
if (ImPlot::BeginPlot("",ImVec2(),ImPlotFlags_NoLegend)) {
ImPlot::SetupAxes(NULL,NULL,ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_NoDecorations);
float fi = 0.01f * (i+1);
ImPlot::SetNextLineStyle(SampleColormap((float)i/(float)(rows*cols-1),ImPlotColormap_Jet));
ImPlot::PlotLineG("data",SinewaveGetter,&fi,1000);
ImPlot::EndPlot();
}
}
ImPlot::EndSubplots();
}
}
//-----------------------------------------------------------------------------
void Demo_SubplotItemSharing() {
static ImPlotSubplotFlags flags = ImPlotSubplotFlags_ShareItems;
ImGui::CheckboxFlags("ImPlotSubplotFlags_ShareItems", (unsigned int*)&flags, ImPlotSubplotFlags_ShareItems);
ImGui::CheckboxFlags("ImPlotSubplotFlags_ColMajor", (unsigned int*)&flags, ImPlotSubplotFlags_ColMajor);
ImGui::BulletText("Drag and drop items from the legend onto plots (except for 'common')");
static int rows = 2;
static int cols = 3;
static int id[] = {0,1,2,3,4,5};
static int curj = -1;
if (ImPlot::BeginSubplots("##ItemSharing", rows, cols, ImVec2(-1,400), flags)) {
for (int i = 0; i < rows*cols; ++i) {
if (ImPlot::BeginPlot("")) {
float fc = 0.01f;
ImPlot::PlotLineG("common",SinewaveGetter,&fc,1000);
for (int j = 0; j < 6; ++j) {
if (id[j] == i) {
char label[8];
float fj = 0.01f * (j+2);
snprintf(label, sizeof(label), "data%d", j);
ImPlot::PlotLineG(label,SinewaveGetter,&fj,1000);
if (ImPlot::BeginDragDropSourceItem(label)) {
curj = j;
ImGui::SetDragDropPayload("MY_DND",NULL,0);
ImPlot::ItemIcon(GetLastItemColor()); ImGui::SameLine();
ImGui::TextUnformatted(label);
ImPlot::EndDragDropSource();
}
}
}
if (ImPlot::BeginDragDropTargetPlot()) {
if (ImGui::AcceptDragDropPayload("MY_DND"))
id[curj] = i;
ImPlot::EndDragDropTarget();
}
ImPlot::EndPlot();
}
}
ImPlot::EndSubplots();
}
}
//-----------------------------------------------------------------------------
void Demo_SubplotAxisLinking() {
static ImPlotSubplotFlags flags = ImPlotSubplotFlags_LinkRows | ImPlotSubplotFlags_LinkCols;
ImGui::CheckboxFlags("ImPlotSubplotFlags_LinkRows", (unsigned int*)&flags, ImPlotSubplotFlags_LinkRows);
ImGui::CheckboxFlags("ImPlotSubplotFlags_LinkCols", (unsigned int*)&flags, ImPlotSubplotFlags_LinkCols);
ImGui::CheckboxFlags("ImPlotSubplotFlags_LinkAllX", (unsigned int*)&flags, ImPlotSubplotFlags_LinkAllX);
ImGui::CheckboxFlags("ImPlotSubplotFlags_LinkAllY", (unsigned int*)&flags, ImPlotSubplotFlags_LinkAllY);
static int rows = 2;
static int cols = 2;
if (ImPlot::BeginSubplots("##AxisLinking", rows, cols, ImVec2(-1,400), flags)) {
for (int i = 0; i < rows*cols; ++i) {
if (ImPlot::BeginPlot("")) {
ImPlot::SetupAxesLimits(0,1000,-1,1);
float fc = 0.01f;
ImPlot::PlotLineG("common",SinewaveGetter,&fc,1000);
ImPlot::EndPlot();
}
}
ImPlot::EndSubplots();
}
}
//-----------------------------------------------------------------------------
void Demo_LegendOptions() {
static ImPlotLocation loc = ImPlotLocation_East;
ImGui::CheckboxFlags("North", (unsigned int*)&loc, ImPlotLocation_North); ImGui::SameLine();
ImGui::CheckboxFlags("South", (unsigned int*)&loc, ImPlotLocation_South); ImGui::SameLine();
ImGui::CheckboxFlags("West", (unsigned int*)&loc, ImPlotLocation_West); ImGui::SameLine();
ImGui::CheckboxFlags("East", (unsigned int*)&loc, ImPlotLocation_East);
static ImPlotLegendFlags flags = 0;
CHECKBOX_FLAG(flags, ImPlotLegendFlags_Horizontal);
CHECKBOX_FLAG(flags, ImPlotLegendFlags_Outside);
CHECKBOX_FLAG(flags, ImPlotLegendFlags_Sort);
ImGui::SliderFloat2("LegendPadding", (float*)&GetStyle().LegendPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("LegendInnerPadding", (float*)&GetStyle().LegendInnerPadding, 0.0f, 10.0f, "%.0f");
ImGui::SliderFloat2("LegendSpacing", (float*)&GetStyle().LegendSpacing, 0.0f, 5.0f, "%.0f");
if (ImPlot::BeginPlot("##Legend",ImVec2(-1,0))) {
ImPlot::SetupLegend(loc, flags);
static MyImPlot::WaveData data1(0.001, 0.2, 4, 0.2);
static MyImPlot::WaveData data2(0.001, 0.2, 4, 0.4);
static MyImPlot::WaveData data3(0.001, 0.2, 4, 0.6);
static MyImPlot::WaveData data4(0.001, 0.2, 4, 0.8);
static MyImPlot::WaveData data5(0.001, 0.2, 4, 1.0);
ImPlot::PlotLineG("Item B", MyImPlot::SawWave, &data1, 1000); // "Item B" added to legend
ImPlot::PlotLineG("Item A##IDText", MyImPlot::SawWave, &data2, 1000); // "Item A" added to legend, text after ## used for ID only
ImPlot::PlotLineG("##NotListed", MyImPlot::SawWave, &data3, 1000); // plotted, but not added to legend
ImPlot::PlotLineG("Item C", MyImPlot::SawWave, &data4, 1000); // "Item C" added to legend
ImPlot::PlotLineG("Item C", MyImPlot::SawWave, &data5, 1000); // combined with previous "Item C"
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_DragPoints() {
ImGui::BulletText("Click and drag each point.");
static ImPlotDragToolFlags flags = ImPlotDragToolFlags_None;
ImGui::CheckboxFlags("NoCursors", (unsigned int*)&flags, ImPlotDragToolFlags_NoCursors); ImGui::SameLine();
ImGui::CheckboxFlags("NoFit", (unsigned int*)&flags, ImPlotDragToolFlags_NoFit); ImGui::SameLine();
ImGui::CheckboxFlags("NoInput", (unsigned int*)&flags, ImPlotDragToolFlags_NoInputs);
ImPlotAxisFlags ax_flags = ImPlotAxisFlags_NoTickLabels | ImPlotAxisFlags_NoTickMarks;
if (ImPlot::BeginPlot("##Bezier",ImVec2(-1,0),ImPlotFlags_CanvasOnly)) {
ImPlot::SetupAxes(0,0,ax_flags,ax_flags);
ImPlot::SetupAxesLimits(0,1,0,1);
static ImPlotPoint P[] = {ImPlotPoint(.05f,.05f), ImPlotPoint(0.2,0.4), ImPlotPoint(0.8,0.6), ImPlotPoint(.95f,.95f)};
ImPlot::DragPoint(0,&P[0].x,&P[0].y, ImVec4(0,0.9f,0,1),4,flags);
ImPlot::DragPoint(1,&P[1].x,&P[1].y, ImVec4(1,0.5f,1,1),4,flags);
ImPlot::DragPoint(2,&P[2].x,&P[2].y, ImVec4(0,0.5f,1,1),4,flags);
ImPlot::DragPoint(3,&P[3].x,&P[3].y, ImVec4(0,0.9f,0,1),4,flags);
static ImPlotPoint B[100];
for (int i = 0; i < 100; ++i) {
double t = i / 99.0;
double u = 1 - t;
double w1 = u*u*u;
double w2 = 3*u*u*t;
double w3 = 3*u*t*t;
double w4 = t*t*t;
B[i] = ImPlotPoint(w1*P[0].x + w2*P[1].x + w3*P[2].x + w4*P[3].x, w1*P[0].y + w2*P[1].y + w3*P[2].y + w4*P[3].y);
}
ImPlot::SetNextLineStyle(ImVec4(1,0.5f,1,1));
ImPlot::PlotLine("##h1",&P[0].x, &P[0].y, 2, 0, 0, sizeof(ImPlotPoint));
ImPlot::SetNextLineStyle(ImVec4(0,0.5f,1,1));
ImPlot::PlotLine("##h2",&P[2].x, &P[2].y, 2, 0, 0, sizeof(ImPlotPoint));
ImPlot::SetNextLineStyle(ImVec4(0,0.9f,0,1), 2);
ImPlot::PlotLine("##bez",&B[0].x, &B[0].y, 100, 0, 0, sizeof(ImPlotPoint));
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_DragLines() {
ImGui::BulletText("Click and drag the horizontal and vertical lines.");
static double x1 = 0.2;
static double x2 = 0.8;
static double y1 = 0.25;
static double y2 = 0.75;
static double f = 0.1;
static ImPlotDragToolFlags flags = ImPlotDragToolFlags_None;
ImGui::CheckboxFlags("NoCursors", (unsigned int*)&flags, ImPlotDragToolFlags_NoCursors); ImGui::SameLine();
ImGui::CheckboxFlags("NoFit", (unsigned int*)&flags, ImPlotDragToolFlags_NoFit); ImGui::SameLine();
ImGui::CheckboxFlags("NoInput", (unsigned int*)&flags, ImPlotDragToolFlags_NoInputs);
if (ImPlot::BeginPlot("##lines",ImVec2(-1,0))) {
ImPlot::SetupAxesLimits(0,1,0,1);
ImPlot::DragLineX(0,&x1,ImVec4(1,1,1,1),1,flags);
ImPlot::DragLineX(1,&x2,ImVec4(1,1,1,1),1,flags);
ImPlot::DragLineY(2,&y1,ImVec4(1,1,1,1),1,flags);
ImPlot::DragLineY(3,&y2,ImVec4(1,1,1,1),1,flags);
double xs[1000], ys[1000];
for (int i = 0; i < 1000; ++i) {
xs[i] = (x2+x1)/2+fabs(x2-x1)*(i/1000.0f - 0.5f);
ys[i] = (y1+y2)/2+fabs(y2-y1)/2*sin(f*i/10);
}
ImPlot::PlotLine("Interactive Data", xs, ys, 1000);
ImPlot::DragLineY(120482,&f,ImVec4(1,0.5f,1,1),1,flags);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_DragRects() {
static float x_data[512];
static float y_data1[512];
static float y_data2[512];
static float y_data3[512];
static float sampling_freq = 44100;
static float freq = 500;
for (size_t i = 0; i < 512; ++i) {
const float t = i / sampling_freq;
x_data[i] = t;
const float arg = 2 * 3.14f * freq * t;
y_data1[i] = sinf(arg);
y_data2[i] = y_data1[i] * -0.6f + sinf(2 * arg) * 0.4f;
y_data3[i] = y_data2[i] * -0.6f + sinf(3 * arg) * 0.4f;
}
ImGui::BulletText("Click and drag the edges, corners, and center of the rect.");
static ImPlotRect rect(0.0025,0.0045,0,0.5);
static ImPlotDragToolFlags flags = ImPlotDragToolFlags_None;
ImGui::CheckboxFlags("NoCursors", (unsigned int*)&flags, ImPlotDragToolFlags_NoCursors); ImGui::SameLine();
ImGui::CheckboxFlags("NoFit", (unsigned int*)&flags, ImPlotDragToolFlags_NoFit); ImGui::SameLine();
ImGui::CheckboxFlags("NoInput", (unsigned int*)&flags, ImPlotDragToolFlags_NoInputs);
if (ImPlot::BeginPlot("##Main",ImVec2(-1,150))) {
ImPlot::SetupAxes(NULL,NULL,ImPlotAxisFlags_NoTickLabels,ImPlotAxisFlags_NoTickLabels);
ImPlot::SetupAxesLimits(0,0.01,-1,1);
ImPlot::PlotLine("Signal 1", x_data, y_data1, 512);
ImPlot::PlotLine("Signal 2", x_data, y_data2, 512);
ImPlot::PlotLine("Signal 3", x_data, y_data3, 512);
ImPlot::DragRect(0,&rect.X.Min,&rect.Y.Min,&rect.X.Max,&rect.Y.Max,ImVec4(1,0,1,1),flags);
ImPlot::EndPlot();
}
if (ImPlot::BeginPlot("##rect",ImVec2(-1,150), ImPlotFlags_CanvasOnly)) {
ImPlot::SetupAxes(NULL,NULL,ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(rect.X.Min, rect.X.Max, rect.Y.Min, rect.Y.Max, ImGuiCond_Always);
ImPlot::PlotLine("Signal 1", x_data, y_data1, 512);
ImPlot::PlotLine("Signal 2", x_data, y_data2, 512);
ImPlot::PlotLine("Signal 3", x_data, y_data3, 512);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
ImPlotPoint FindCentroid(const ImVector<ImPlotPoint>& data, const ImPlotRect& bounds, int& cnt) {
cnt = 0;
ImPlotPoint avg;
ImPlotRect bounds_fixed;
bounds_fixed.X.Min = bounds.X.Min < bounds.X.Max ? bounds.X.Min : bounds.X.Max;
bounds_fixed.X.Max = bounds.X.Min < bounds.X.Max ? bounds.X.Max : bounds.X.Min;
bounds_fixed.Y.Min = bounds.Y.Min < bounds.Y.Max ? bounds.Y.Min : bounds.Y.Max;
bounds_fixed.Y.Max = bounds.Y.Min < bounds.Y.Max ? bounds.Y.Max : bounds.Y.Min;
for (int i = 0; i < data.size(); ++i) {
if (bounds_fixed.Contains(data[i].x, data[i].y)) {
avg.x += data[i].x;
avg.y += data[i].y;
cnt++;
}
}
if (cnt > 0) {
avg.x = avg.x / cnt;
avg.y = avg.y / cnt;
}
return avg;
}
//-----------------------------------------------------------------------------
void Demo_Querying() {
static ImVector<ImPlotPoint> data;
static ImVector<ImPlotRect> rects;
static ImPlotRect limits, select;
static bool init = true;
if (init) {
for (int i = 0; i < 50; ++i)
{
double x = RandomRange(0.1, 0.9);
double y = RandomRange(0.1, 0.9);
data.push_back(ImPlotPoint(x,y));
}
init = false;
}
ImGui::BulletText("Box select and left click mouse to create a new query rect.");
ImGui::BulletText("Ctrl + click in the plot area to draw points.");
if (ImGui::Button("Clear Queries"))
rects.shrink(0);
if (ImPlot::BeginPlot("##Centroid")) {
ImPlot::SetupAxesLimits(0,1,0,1);
if (ImPlot::IsPlotHovered() && ImGui::IsMouseClicked(0) && ImGui::GetIO().KeyCtrl) {
ImPlotPoint pt = ImPlot::GetPlotMousePos();
data.push_back(pt);
}
ImPlot::PlotScatter("Points", &data[0].x, &data[0].y, data.size(), 0, 0, 2 * sizeof(double));
if (ImPlot::IsPlotSelected()) {
select = ImPlot::GetPlotSelection();
int cnt;
ImPlotPoint centroid = FindCentroid(data,select,cnt);
if (cnt > 0) {
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square,6);
ImPlot::PlotScatter("Centroid", ¢roid.x, ¢roid.y, 1);
}
if (ImGui::IsMouseClicked(ImPlot::GetInputMap().SelectCancel)) {
CancelPlotSelection();
rects.push_back(select);
}
}
for (int i = 0; i < rects.size(); ++i) {
int cnt;
ImPlotPoint centroid = FindCentroid(data,rects[i],cnt);
if (cnt > 0) {
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square,6);
ImPlot::PlotScatter("Centroid", ¢roid.x, ¢roid.y, 1);
}
ImPlot::DragRect(i,&rects[i].X.Min,&rects[i].Y.Min,&rects[i].X.Max,&rects[i].Y.Max,ImVec4(1,0,1,1));
}
limits = ImPlot::GetPlotLimits();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Annotations() {
static bool clamp = false;
ImGui::Checkbox("Clamp",&clamp);
if (ImPlot::BeginPlot("##Annotations")) {
ImPlot::SetupAxesLimits(0,2,0,1);
static float p[] = {0.25f, 0.25f, 0.75f, 0.75f, 0.25f};
ImPlot::PlotScatter("##Points",&p[0],&p[1],4);
ImVec4 col = GetLastItemColor();
ImPlot::Annotation(0.25,0.25,col,ImVec2(-15,15),clamp,"BL");
ImPlot::Annotation(0.75,0.25,col,ImVec2(15,15),clamp,"BR");
ImPlot::Annotation(0.75,0.75,col,ImVec2(15,-15),clamp,"TR");
ImPlot::Annotation(0.25,0.75,col,ImVec2(-15,-15),clamp,"TL");
ImPlot::Annotation(0.5,0.5,col,ImVec2(0,0),clamp,"Center");
ImPlot::Annotation(1.25,0.75,ImVec4(0,1,0,1),ImVec2(0,0),clamp);
float bx[] = {1.2f,1.5f,1.8f};
float by[] = {0.25f, 0.5f, 0.75f};
ImPlot::PlotBars("##Bars",bx,by,3,0.2);
for (int i = 0; i < 3; ++i)
ImPlot::Annotation(bx[i],by[i],ImVec4(0,0,0,0),ImVec2(0,-5),clamp,"B[%d]=%.2f",i,by[i]);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Tags() {
static bool show = true;
ImGui::Checkbox("Show Tags",&show);
if (ImPlot::BeginPlot("##Tags")) {
ImPlot::SetupAxis(ImAxis_X2);
ImPlot::SetupAxis(ImAxis_Y2);
if (show) {
ImPlot::TagX(0.25, ImVec4(1,1,0,1));
ImPlot::TagY(0.75, ImVec4(1,1,0,1));
static double drag_tag = 0.25;
ImPlot::DragLineY(0,&drag_tag,ImVec4(1,0,0,1),1,ImPlotDragToolFlags_NoFit);
ImPlot::TagY(drag_tag, ImVec4(1,0,0,1), "Drag");
SetAxes(ImAxis_X2, ImAxis_Y2);
ImPlot::TagX(0.5, ImVec4(0,1,1,1), "%s", "MyTag");
ImPlot::TagY(0.5, ImVec4(0,1,1,1), "Tag: %d", 42);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_DragAndDrop() {
ImGui::BulletText("Drag/drop items from the left column.");
ImGui::BulletText("Drag/drop items between plots.");
ImGui::Indent();
ImGui::BulletText("Plot 1 Targets: Plot, Y-Axes, Legend");
ImGui::BulletText("Plot 1 Sources: Legend Item Labels");
ImGui::BulletText("Plot 2 Targets: Plot, X-Axis, Y-Axis");
ImGui::BulletText("Plot 2 Sources: Plot, X-Axis, Y-Axis (hold Ctrl)");
ImGui::Unindent();
// convenience struct to manage DND items; do this however you like
struct MyDndItem {
int Idx;
int Plt;
ImAxis Yax;
char Label[16];
ImVector<ImVec2> Data;
ImVec4 Color;
MyDndItem() {
static int i = 0;
Idx = i++;
Plt = 0;
Yax = ImAxis_Y1;
snprintf(Label, sizeof(Label), "%02d Hz", Idx+1);
Color = RandomColor();
Data.reserve(1001);
for (int k = 0; k < 1001; ++k) {
float t = k * 1.0f / 999;
Data.push_back(ImVec2(t, 0.5f + 0.5f * sinf(2*3.14f*t*(Idx+1))));
}
}
void Reset() { Plt = 0; Yax = ImAxis_Y1; }
};
const int k_dnd = 20;
static MyDndItem dnd[k_dnd];
static MyDndItem* dndx = NULL; // for plot 2
static MyDndItem* dndy = NULL; // for plot 2
// child window to serve as initial source for our DND items
ImGui::BeginChild("DND_LEFT",ImVec2(100,400));
if (ImGui::Button("Reset Data")) {
for (int k = 0; k < k_dnd; ++k)
dnd[k].Reset();
dndx = dndy = NULL;
}
for (int k = 0; k < k_dnd; ++k) {
if (dnd[k].Plt > 0)
continue;
ImPlot::ItemIcon(dnd[k].Color); ImGui::SameLine();
ImGui::Selectable(dnd[k].Label, false, 0, ImVec2(100, 0));
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
ImGui::SetDragDropPayload("MY_DND", &k, sizeof(int));
ImPlot::ItemIcon(dnd[k].Color); ImGui::SameLine();
ImGui::TextUnformatted(dnd[k].Label);
ImGui::EndDragDropSource();
}
}
ImGui::EndChild();
if (ImGui::BeginDragDropTarget()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dnd[i].Reset();
}
ImGui::EndDragDropTarget();
}
ImGui::SameLine();
ImGui::BeginChild("DND_RIGHT",ImVec2(-1,400));
// plot 1 (time series)
ImPlotAxisFlags flags = ImPlotAxisFlags_NoTickLabels | ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_NoHighlight;
if (ImPlot::BeginPlot("##DND1", ImVec2(-1,195))) {
ImPlot::SetupAxis(ImAxis_X1, NULL, flags|ImPlotAxisFlags_Lock);
ImPlot::SetupAxis(ImAxis_Y1, "[drop here]", flags);
ImPlot::SetupAxis(ImAxis_Y2, "[drop here]", flags|ImPlotAxisFlags_Opposite);
ImPlot::SetupAxis(ImAxis_Y3, "[drop here]", flags|ImPlotAxisFlags_Opposite);
for (int k = 0; k < k_dnd; ++k) {
if (dnd[k].Plt == 1 && dnd[k].Data.size() > 0) {
ImPlot::SetAxis(dnd[k].Yax);
ImPlot::SetNextLineStyle(dnd[k].Color);
ImPlot::PlotLine(dnd[k].Label, &dnd[k].Data[0].x, &dnd[k].Data[0].y, dnd[k].Data.size(), 0, 0, 2 * sizeof(float));
// allow legend item labels to be DND sources
if (ImPlot::BeginDragDropSourceItem(dnd[k].Label)) {
ImGui::SetDragDropPayload("MY_DND", &k, sizeof(int));
ImPlot::ItemIcon(dnd[k].Color); ImGui::SameLine();
ImGui::TextUnformatted(dnd[k].Label);
ImPlot::EndDragDropSource();
}
}
}
// allow the main plot area to be a DND target
if (ImPlot::BeginDragDropTargetPlot()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dnd[i].Plt = 1; dnd[i].Yax = ImAxis_Y1;
}
ImPlot::EndDragDropTarget();
}
// allow each y-axis to be a DND target
for (int y = ImAxis_Y1; y <= ImAxis_Y3; ++y) {
if (ImPlot::BeginDragDropTargetAxis(y)) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dnd[i].Plt = 1; dnd[i].Yax = y;
}
ImPlot::EndDragDropTarget();
}
}
// allow the legend to be a DND target
if (ImPlot::BeginDragDropTargetLegend()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dnd[i].Plt = 1; dnd[i].Yax = ImAxis_Y1;
}
ImPlot::EndDragDropTarget();
}
ImPlot::EndPlot();
}
// plot 2 (Lissajous)
if (ImPlot::BeginPlot("##DND2", ImVec2(-1,195))) {
ImPlot::PushStyleColor(ImPlotCol_AxisBg, dndx != NULL ? dndx->Color : ImPlot::GetStyle().Colors[ImPlotCol_AxisBg]);
ImPlot::SetupAxis(ImAxis_X1, dndx == NULL ? "[drop here]" : dndx->Label, flags);
ImPlot::PushStyleColor(ImPlotCol_AxisBg, dndy != NULL ? dndy->Color : ImPlot::GetStyle().Colors[ImPlotCol_AxisBg]);
ImPlot::SetupAxis(ImAxis_Y1, dndy == NULL ? "[drop here]" : dndy->Label, flags);
ImPlot::PopStyleColor(2);
if (dndx != NULL && dndy != NULL) {
ImVec4 mixed((dndx->Color.x + dndy->Color.x)/2,(dndx->Color.y + dndy->Color.y)/2,(dndx->Color.z + dndy->Color.z)/2,(dndx->Color.w + dndy->Color.w)/2);
ImPlot::SetNextLineStyle(mixed);
ImPlot::PlotLine("##dndxy", &dndx->Data[0].y, &dndy->Data[0].y, dndx->Data.size(), 0, 0, 2 * sizeof(float));
}
// allow the x-axis to be a DND target
if (ImPlot::BeginDragDropTargetAxis(ImAxis_X1)) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dndx = &dnd[i];
}
ImPlot::EndDragDropTarget();
}
// allow the x-axis to be a DND source
if (dndx != NULL && ImPlot::BeginDragDropSourceAxis(ImAxis_X1)) {
ImGui::SetDragDropPayload("MY_DND", &dndx->Idx, sizeof(int));
ImPlot::ItemIcon(dndx->Color); ImGui::SameLine();
ImGui::TextUnformatted(dndx->Label);
ImPlot::EndDragDropSource();
}
// allow the y-axis to be a DND target
if (ImPlot::BeginDragDropTargetAxis(ImAxis_Y1)) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dndy = &dnd[i];
}
ImPlot::EndDragDropTarget();
}
// allow the y-axis to be a DND source
if (dndy != NULL && ImPlot::BeginDragDropSourceAxis(ImAxis_Y1)) {
ImGui::SetDragDropPayload("MY_DND", &dndy->Idx, sizeof(int));
ImPlot::ItemIcon(dndy->Color); ImGui::SameLine();
ImGui::TextUnformatted(dndy->Label);
ImPlot::EndDragDropSource();
}
// allow the plot area to be a DND target
if (ImPlot::BeginDragDropTargetPlot()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("MY_DND")) {
int i = *(int*)payload->Data; dndx = dndy = &dnd[i];
}
}
// allow the plot area to be a DND source
if (ImPlot::BeginDragDropSourcePlot()) {
ImGui::TextUnformatted("Yes, you can\ndrag this!");
ImPlot::EndDragDropSource();
}
ImPlot::EndPlot();
}
ImGui::EndChild();
}
//-----------------------------------------------------------------------------
void Demo_Tables() {
#ifdef IMGUI_HAS_TABLE
static ImGuiTableFlags flags = ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV |
ImGuiTableFlags_RowBg | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable;
static bool anim = true;
static int offset = 0;
ImGui::BulletText("Plots can be used inside of ImGui tables as another means of creating subplots.");
ImGui::Checkbox("Animate",&anim);
if (anim)
offset = (offset + 1) % 100;
if (ImGui::BeginTable("##table", 3, flags, ImVec2(-1,0))) {
ImGui::TableSetupColumn("Electrode", ImGuiTableColumnFlags_WidthFixed, 75.0f);
ImGui::TableSetupColumn("Voltage", ImGuiTableColumnFlags_WidthFixed, 75.0f);
ImGui::TableSetupColumn("EMG Signal");
ImGui::TableHeadersRow();
ImPlot::PushColormap(ImPlotColormap_Cool);
for (int row = 0; row < 10; row++) {
ImGui::TableNextRow();
static float data[100];
srand(row);
for (int i = 0; i < 100; ++i)
data[i] = RandomRange(0.0f,10.0f);
ImGui::TableSetColumnIndex(0);
ImGui::Text("EMG %d", row);
ImGui::TableSetColumnIndex(1);
ImGui::Text("%.3f V", data[offset]);
ImGui::TableSetColumnIndex(2);
ImGui::PushID(row);
MyImPlot::Sparkline("##spark",data,100,0,11.0f,offset,ImPlot::GetColormapColor(row),ImVec2(-1, 35));
ImGui::PopID();
}
ImPlot::PopColormap();
ImGui::EndTable();
}
#else
ImGui::BulletText("You need to merge the ImGui 'tables' branch for this section.");
#endif
}
//-----------------------------------------------------------------------------
void Demo_OffsetAndStride() {
static const int k_circles = 11;
static const int k_points_per = 50;
static const int k_size = 2 * k_points_per * k_circles;
static double interleaved_data[k_size];
for (int p = 0; p < k_points_per; ++p) {
for (int c = 0; c < k_circles; ++c) {
double r = (double)c / (k_circles - 1) * 0.2 + 0.2;
interleaved_data[p*2*k_circles + 2*c + 0] = 0.5 + r * cos((double)p/k_points_per * 6.28);
interleaved_data[p*2*k_circles + 2*c + 1] = 0.5 + r * sin((double)p/k_points_per * 6.28);
}
}
static int offset = 0;
ImGui::BulletText("Offsetting is useful for realtime plots (see above) and circular buffers.");
ImGui::BulletText("Striding is useful for interleaved data (e.g. audio) or plotting structs.");
ImGui::BulletText("Here, all circle data is stored in a single interleaved buffer:");
ImGui::BulletText("[c0.x0 c0.y0 ... cn.x0 cn.y0 c0.x1 c0.y1 ... cn.x1 cn.y1 ... cn.xm cn.ym]");
ImGui::BulletText("The offset value indicates which circle point index is considered the first.");
ImGui::BulletText("Offsets can be negative and/or larger than the actual data count.");
ImGui::SliderInt("Offset", &offset, -2*k_points_per, 2*k_points_per);
if (ImPlot::BeginPlot("##strideoffset",ImVec2(-1,0),ImPlotFlags_Equal)) {
ImPlot::PushColormap(ImPlotColormap_Jet);
char buff[32];
for (int c = 0; c < k_circles; ++c) {
snprintf(buff, sizeof(buff), "Circle %d", c);
ImPlot::PlotLine(buff, &interleaved_data[c*2 + 0], &interleaved_data[c*2 + 1], k_points_per, 0, offset, 2*k_circles*sizeof(double));
}
ImPlot::EndPlot();
ImPlot::PopColormap();
}
// offset++; uncomment for animation!
}
//-----------------------------------------------------------------------------
void Demo_CustomDataAndGetters() {
ImGui::BulletText("You can plot custom structs using the stride feature.");
ImGui::BulletText("Most plotters can also be passed a function pointer for getting data.");
ImGui::Indent();
ImGui::BulletText("You can optionally pass user data to be given to your getter function.");
ImGui::BulletText("C++ lambdas can be passed as function pointers as well!");
ImGui::Unindent();
MyImPlot::Vector2f vec2_data[2] = { MyImPlot::Vector2f(0,0), MyImPlot::Vector2f(1,1) };
if (ImPlot::BeginPlot("##Custom Data")) {
// custom structs using stride example:
ImPlot::PlotLine("Vector2f", &vec2_data[0].x, &vec2_data[0].y, 2, 0, 0, sizeof(MyImPlot::Vector2f) /* or sizeof(float) * 2 */);
// custom getter example 1:
ImPlot::PlotLineG("Spiral", MyImPlot::Spiral, NULL, 1000);
// custom getter example 2:
static MyImPlot::WaveData data1(0.001, 0.2, 2, 0.75);
static MyImPlot::WaveData data2(0.001, 0.2, 4, 0.25);
ImPlot::PlotLineG("Waves", MyImPlot::SineWave, &data1, 1000);
ImPlot::PlotLineG("Waves", MyImPlot::SawWave, &data2, 1000);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShadedG("Waves", MyImPlot::SineWave, &data1, MyImPlot::SawWave, &data2, 1000);
ImPlot::PopStyleVar();
// you can also pass C++ lambdas:
// auto lamda = [](void* data, int idx) { ... return ImPlotPoint(x,y); };
// ImPlot::PlotLine("My Lambda", lambda, data, 1000);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
int MetricFormatter(double value, char* buff, int size, void* data) {
const char* unit = (const char*)data;
static double v[] = {1000000000,1000000,1000,1,0.001,0.000001,0.000000001};
static const char* p[] = {"G","M","k","","m","u","n"};
if (value == 0) {
return snprintf(buff,size,"0 %s", unit);
}
for (int i = 0; i < 7; ++i) {
if (fabs(value) >= v[i]) {
return snprintf(buff,size,"%g %s%s",value/v[i],p[i],unit);
}
}
return snprintf(buff,size,"%g %s%s",value/v[6],p[6],unit);
}
void Demo_TickLabels() {
static bool custom_fmt = true;
static bool custom_ticks = false;
static bool custom_labels = true;
ImGui::Checkbox("Show Custom Format", &custom_fmt);
ImGui::SameLine();
ImGui::Checkbox("Show Custom Ticks", &custom_ticks);
if (custom_ticks) {
ImGui::SameLine();
ImGui::Checkbox("Show Custom Labels", &custom_labels);
}
const double pi = 3.14;
const char* pi_str[] = {"PI"};
static double yticks[] = {100,300,700,900};
static const char* ylabels[] = {"One","Three","Seven","Nine"};
static double yticks_aux[] = {0.2,0.4,0.6};
static const char* ylabels_aux[] = {"A","B","C","D","E","F"};
if (ImPlot::BeginPlot("##Ticks")) {
ImPlot::SetupAxesLimits(2.5,5,0,1000);
ImPlot::SetupAxis(ImAxis_Y2, NULL, ImPlotAxisFlags_AuxDefault);
ImPlot::SetupAxis(ImAxis_Y3, NULL, ImPlotAxisFlags_AuxDefault);
if (custom_fmt) {
ImPlot::SetupAxisFormat(ImAxis_X1, "%g ms");
ImPlot::SetupAxisFormat(ImAxis_Y1, MetricFormatter, (void*)"Hz");
ImPlot::SetupAxisFormat(ImAxis_Y2, "%g dB");
ImPlot::SetupAxisFormat(ImAxis_Y3, MetricFormatter, (void*)"m");
}
if (custom_ticks) {
ImPlot::SetupAxisTicks(ImAxis_X1, &pi,1,custom_labels ? pi_str : NULL, true);
ImPlot::SetupAxisTicks(ImAxis_Y1, yticks, 4, custom_labels ? ylabels : NULL, false);
ImPlot::SetupAxisTicks(ImAxis_Y2, yticks_aux, 3, custom_labels ? ylabels_aux : NULL, false);
ImPlot::SetupAxisTicks(ImAxis_Y3, 0, 1, 6, custom_labels ? ylabels_aux : NULL, false);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_CustomStyles() {
ImPlot::PushColormap(ImPlotColormap_Deep);
// normally you wouldn't change the entire style each frame
ImPlotStyle backup = ImPlot::GetStyle();
MyImPlot::StyleSeaborn();
if (ImPlot::BeginPlot("seaborn style")) {
ImPlot::SetupAxes( "x-axis", "y-axis");
ImPlot::SetupAxesLimits(-0.5f, 9.5f, 0, 10);
unsigned int lin[10] = {8,8,9,7,8,8,8,9,7,8};
unsigned int bar[10] = {1,2,5,3,4,1,2,5,3,4};
unsigned int dot[10] = {7,6,6,7,8,5,6,5,8,7};
ImPlot::PlotBars("Bars", bar, 10, 0.5f);
ImPlot::PlotLine("Line", lin, 10);
ImPlot::NextColormapColor(); // skip green
ImPlot::PlotScatter("Scatter", dot, 10);
ImPlot::EndPlot();
}
ImPlot::GetStyle() = backup;
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_CustomRendering() {
if (ImPlot::BeginPlot("##CustomRend")) {
ImVec2 cntr = ImPlot::PlotToPixels(ImPlotPoint(0.5f, 0.5f));
ImVec2 rmin = ImPlot::PlotToPixels(ImPlotPoint(0.25f, 0.75f));
ImVec2 rmax = ImPlot::PlotToPixels(ImPlotPoint(0.75f, 0.25f));
ImPlot::PushPlotClipRect();
ImPlot::GetPlotDrawList()->AddCircleFilled(cntr,20,IM_COL32(255,255,0,255),20);
ImPlot::GetPlotDrawList()->AddRect(rmin, rmax, IM_COL32(128,0,255,255));
ImPlot::PopPlotClipRect();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LegendPopups() {
ImGui::BulletText("You can implement legend context menus to inject per-item controls and widgets.");
ImGui::BulletText("Right click the legend label/icon to edit custom item attributes.");
static float frequency = 0.1f;
static float amplitude = 0.5f;
static ImVec4 color = ImVec4(1,1,0,1);
static float alpha = 1.0f;
static bool line = false;
static float thickness = 1;
static bool markers = false;
static bool shaded = false;
static float vals[101];
for (int i = 0; i < 101; ++i)
vals[i] = amplitude * sinf(frequency * i);
if (ImPlot::BeginPlot("Right Click the Legend")) {
ImPlot::SetupAxesLimits(0,100,-1,1);
// rendering logic
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, alpha);
if (!line) {
ImPlot::SetNextFillStyle(color);
ImPlot::PlotBars("Right Click Me", vals, 101);
}
else {
if (markers) ImPlot::SetNextMarkerStyle(ImPlotMarker_Square);
ImPlot::SetNextLineStyle(color, thickness);
ImPlot::PlotLine("Right Click Me", vals, 101);
if (shaded) ImPlot::PlotShaded("Right Click Me",vals,101);
}
ImPlot::PopStyleVar();
// custom legend context menu
if (ImPlot::BeginLegendPopup("Right Click Me")) {
ImGui::SliderFloat("Frequency",&frequency,0,1,"%0.2f");
ImGui::SliderFloat("Amplitude",&litude,0,1,"%0.2f");
ImGui::Separator();
ImGui::ColorEdit3("Color",&color.x);
ImGui::SliderFloat("Transparency",&alpha,0,1,"%.2f");
ImGui::Checkbox("Line Plot", &line);
if (line) {
ImGui::SliderFloat("Thickness", &thickness, 0, 5);
ImGui::Checkbox("Markers", &markers);
ImGui::Checkbox("Shaded",&shaded);
}
ImPlot::EndLegendPopup();
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_ColormapWidgets() {
static int cmap = ImPlotColormap_Viridis;
if (ImPlot::ColormapButton("Button",ImVec2(0,0),cmap)) {
cmap = (cmap + 1) % ImPlot::GetColormapCount();
}
static float t = 0.5f;
static ImVec4 col;
ImGui::ColorButton("##Display",col,ImGuiColorEditFlags_NoInputs);
ImGui::SameLine();
ImPlot::ColormapSlider("Slider", &t, &col, "%.3f", cmap);
ImPlot::ColormapIcon(cmap); ImGui::SameLine(); ImGui::Text("Icon");
static ImPlotColormapScaleFlags flags = 0;
static float scale[2] = {0, 100};
ImPlot::ColormapScale("Scale",scale[0],scale[1],ImVec2(0,0),"%g dB",flags,cmap);
ImGui::InputFloat2("Scale",scale);
CHECKBOX_FLAG(flags, ImPlotColormapScaleFlags_NoLabel);
CHECKBOX_FLAG(flags, ImPlotColormapScaleFlags_Opposite);
CHECKBOX_FLAG(flags, ImPlotColormapScaleFlags_Invert);
}
//-----------------------------------------------------------------------------
void Demo_CustomPlottersAndTooltips() {
ImGui::BulletText("You can create custom plotters or extend ImPlot using implot_internal.h.");
double dates[] = {1546300800,1546387200,1546473600,1546560000,1546819200,1546905600,1546992000,1547078400,1547164800,1547424000,1547510400,1547596800,1547683200,1547769600,1547942400,1548028800,1548115200,1548201600,1548288000,1548374400,1548633600,1548720000,1548806400,1548892800,1548979200,1549238400,1549324800,1549411200,1549497600,1549584000,1549843200,1549929600,1550016000,1550102400,1550188800,1550361600,1550448000,1550534400,1550620800,1550707200,1550793600,1551052800,1551139200,1551225600,1551312000,1551398400,1551657600,1551744000,1551830400,1551916800,1552003200,1552262400,1552348800,1552435200,1552521600,1552608000,1552867200,1552953600,1553040000,1553126400,1553212800,1553472000,1553558400,1553644800,1553731200,1553817600,1554076800,1554163200,1554249600,1554336000,1554422400,1554681600,1554768000,1554854400,1554940800,1555027200,1555286400,1555372800,1555459200,1555545600,1555632000,1555891200,1555977600,1556064000,1556150400,1556236800,1556496000,1556582400,1556668800,1556755200,1556841600,1557100800,1557187200,1557273600,1557360000,1557446400,1557705600,1557792000,1557878400,1557964800,1558051200,1558310400,1558396800,1558483200,1558569600,1558656000,1558828800,1558915200,1559001600,1559088000,1559174400,1559260800,1559520000,1559606400,1559692800,1559779200,1559865600,1560124800,1560211200,1560297600,1560384000,1560470400,1560729600,1560816000,1560902400,1560988800,1561075200,1561334400,1561420800,1561507200,1561593600,1561680000,1561939200,1562025600,1562112000,1562198400,1562284800,1562544000,1562630400,1562716800,1562803200,1562889600,1563148800,1563235200,1563321600,1563408000,1563494400,1563753600,1563840000,1563926400,1564012800,1564099200,1564358400,1564444800,1564531200,1564617600,1564704000,1564963200,1565049600,1565136000,1565222400,1565308800,1565568000,1565654400,1565740800,1565827200,1565913600,1566172800,1566259200,1566345600,1566432000,1566518400,1566777600,1566864000,1566950400,1567036800,1567123200,1567296000,1567382400,1567468800,1567555200,1567641600,1567728000,1567987200,1568073600,1568160000,1568246400,1568332800,1568592000,1568678400,1568764800,1568851200,1568937600,1569196800,1569283200,1569369600,1569456000,1569542400,1569801600,1569888000,1569974400,1570060800,1570147200,1570406400,1570492800,1570579200,1570665600,1570752000,1571011200,1571097600,1571184000,1571270400,1571356800,1571616000,1571702400,1571788800,1571875200,1571961600};
double opens[] = {1284.7,1319.9,1318.7,1328,1317.6,1321.6,1314.3,1325,1319.3,1323.1,1324.7,1321.3,1323.5,1322,1281.3,1281.95,1311.1,1315,1314,1313.1,1331.9,1334.2,1341.3,1350.6,1349.8,1346.4,1343.4,1344.9,1335.6,1337.9,1342.5,1337,1338.6,1337,1340.4,1324.65,1324.35,1349.5,1371.3,1367.9,1351.3,1357.8,1356.1,1356,1347.6,1339.1,1320.6,1311.8,1314,1312.4,1312.3,1323.5,1319.1,1327.2,1332.1,1320.3,1323.1,1328,1330.9,1338,1333,1335.3,1345.2,1341.1,1332.5,1314,1314.4,1310.7,1314,1313.1,1315,1313.7,1320,1326.5,1329.2,1314.2,1312.3,1309.5,1297.4,1293.7,1277.9,1295.8,1295.2,1290.3,1294.2,1298,1306.4,1299.8,1302.3,1297,1289.6,1302,1300.7,1303.5,1300.5,1303.2,1306,1318.7,1315,1314.5,1304.1,1294.7,1293.7,1291.2,1290.2,1300.4,1284.2,1284.25,1301.8,1295.9,1296.2,1304.4,1323.1,1340.9,1341,1348,1351.4,1351.4,1343.5,1342.3,1349,1357.6,1357.1,1354.7,1361.4,1375.2,1403.5,1414.7,1433.2,1438,1423.6,1424.4,1418,1399.5,1435.5,1421.25,1434.1,1412.4,1409.8,1412.2,1433.4,1418.4,1429,1428.8,1420.6,1441,1460.4,1441.7,1438.4,1431,1439.3,1427.4,1431.9,1439.5,1443.7,1425.6,1457.5,1451.2,1481.1,1486.7,1512.1,1515.9,1509.2,1522.3,1513,1526.6,1533.9,1523,1506.3,1518.4,1512.4,1508.8,1545.4,1537.3,1551.8,1549.4,1536.9,1535.25,1537.95,1535.2,1556,1561.4,1525.6,1516.4,1507,1493.9,1504.9,1506.5,1513.1,1506.5,1509.7,1502,1506.8,1521.5,1529.8,1539.8,1510.9,1511.8,1501.7,1478,1485.4,1505.6,1511.6,1518.6,1498.7,1510.9,1510.8,1498.3,1492,1497.7,1484.8,1494.2,1495.6,1495.6,1487.5,1491.1,1495.1,1506.4};
double highs[] = {1284.75,1320.6,1327,1330.8,1326.8,1321.6,1326,1328,1325.8,1327.1,1326,1326,1323.5,1322.1,1282.7,1282.95,1315.8,1316.3,1314,1333.2,1334.7,1341.7,1353.2,1354.6,1352.2,1346.4,1345.7,1344.9,1340.7,1344.2,1342.7,1342.1,1345.2,1342,1350,1324.95,1330.75,1369.6,1374.3,1368.4,1359.8,1359,1357,1356,1353.4,1340.6,1322.3,1314.1,1316.1,1312.9,1325.7,1323.5,1326.3,1336,1332.1,1330.1,1330.4,1334.7,1341.1,1344.2,1338.8,1348.4,1345.6,1342.8,1334.7,1322.3,1319.3,1314.7,1316.6,1316.4,1315,1325.4,1328.3,1332.2,1329.2,1316.9,1312.3,1309.5,1299.6,1296.9,1277.9,1299.5,1296.2,1298.4,1302.5,1308.7,1306.4,1305.9,1307,1297.2,1301.7,1305,1305.3,1310.2,1307,1308,1319.8,1321.7,1318.7,1316.2,1305.9,1295.8,1293.8,1293.7,1304.2,1302,1285.15,1286.85,1304,1302,1305.2,1323,1344.1,1345.2,1360.1,1355.3,1363.8,1353,1344.7,1353.6,1358,1373.6,1358.2,1369.6,1377.6,1408.9,1425.5,1435.9,1453.7,1438,1426,1439.1,1418,1435,1452.6,1426.65,1437.5,1421.5,1414.1,1433.3,1441.3,1431.4,1433.9,1432.4,1440.8,1462.3,1467,1443.5,1444,1442.9,1447,1437.6,1440.8,1445.7,1447.8,1458.2,1461.9,1481.8,1486.8,1522.7,1521.3,1521.1,1531.5,1546.1,1534.9,1537.7,1538.6,1523.6,1518.8,1518.4,1514.6,1540.3,1565,1554.5,1556.6,1559.8,1541.9,1542.9,1540.05,1558.9,1566.2,1561.9,1536.2,1523.8,1509.1,1506.2,1532.2,1516.6,1519.7,1515,1519.5,1512.1,1524.5,1534.4,1543.3,1543.3,1542.8,1519.5,1507.2,1493.5,1511.4,1525.8,1522.2,1518.8,1515.3,1518,1522.3,1508,1501.5,1503,1495.5,1501.1,1497.9,1498.7,1492.1,1499.4,1506.9,1520.9};
double lows[] = {1282.85,1315,1318.7,1309.6,1317.6,1312.9,1312.4,1319.1,1319,1321,1318.1,1321.3,1319.9,1312,1280.5,1276.15,1308,1309.9,1308.5,1312.3,1329.3,1333.1,1340.2,1347,1345.9,1338,1340.8,1335,1332,1337.9,1333,1336.8,1333.2,1329.9,1340.4,1323.85,1324.05,1349,1366.3,1351.2,1349.1,1352.4,1350.7,1344.3,1338.9,1316.3,1308.4,1306.9,1309.6,1306.7,1312.3,1315.4,1319,1327.2,1317.2,1320,1323,1328,1323,1327.8,1331.7,1335.3,1336.6,1331.8,1311.4,1310,1309.5,1308,1310.6,1302.8,1306.6,1313.7,1320,1322.8,1311,1312.1,1303.6,1293.9,1293.5,1291,1277.9,1294.1,1286,1289.1,1293.5,1296.9,1298,1299.6,1292.9,1285.1,1288.5,1296.3,1297.2,1298.4,1298.6,1302,1300.3,1312,1310.8,1301.9,1292,1291.1,1286.3,1289.2,1289.9,1297.4,1283.65,1283.25,1292.9,1295.9,1290.8,1304.2,1322.7,1336.1,1341,1343.5,1345.8,1340.3,1335.1,1341.5,1347.6,1352.8,1348.2,1353.7,1356.5,1373.3,1398,1414.7,1427,1416.4,1412.7,1420.1,1396.4,1398.8,1426.6,1412.85,1400.7,1406,1399.8,1404.4,1415.5,1417.2,1421.9,1415,1413.7,1428.1,1434,1435.7,1427.5,1429.4,1423.9,1425.6,1427.5,1434.8,1422.3,1412.1,1442.5,1448.8,1468.2,1484.3,1501.6,1506.2,1498.6,1488.9,1504.5,1518.3,1513.9,1503.3,1503,1506.5,1502.1,1503,1534.8,1535.3,1541.4,1528.6,1525.6,1535.25,1528.15,1528,1542.6,1514.3,1510.7,1505.5,1492.1,1492.9,1496.8,1493.1,1503.4,1500.9,1490.7,1496.3,1505.3,1505.3,1517.9,1507.4,1507.1,1493.3,1470.5,1465,1480.5,1501.7,1501.4,1493.3,1492.1,1505.1,1495.7,1478,1487.1,1480.8,1480.6,1487,1488.3,1484.8,1484,1490.7,1490.4,1503.1};
double closes[] = {1283.35,1315.3,1326.1,1317.4,1321.5,1317.4,1323.5,1319.2,1321.3,1323.3,1319.7,1325.1,1323.6,1313.8,1282.05,1279.05,1314.2,1315.2,1310.8,1329.1,1334.5,1340.2,1340.5,1350,1347.1,1344.3,1344.6,1339.7,1339.4,1343.7,1337,1338.9,1340.1,1338.7,1346.8,1324.25,1329.55,1369.6,1372.5,1352.4,1357.6,1354.2,1353.4,1346,1341,1323.8,1311.9,1309.1,1312.2,1310.7,1324.3,1315.7,1322.4,1333.8,1319.4,1327.1,1325.8,1330.9,1325.8,1331.6,1336.5,1346.7,1339.2,1334.7,1313.3,1316.5,1312.4,1313.4,1313.3,1312.2,1313.7,1319.9,1326.3,1331.9,1311.3,1313.4,1309.4,1295.2,1294.7,1294.1,1277.9,1295.8,1291.2,1297.4,1297.7,1306.8,1299.4,1303.6,1302.2,1289.9,1299.2,1301.8,1303.6,1299.5,1303.2,1305.3,1319.5,1313.6,1315.1,1303.5,1293,1294.6,1290.4,1291.4,1302.7,1301,1284.15,1284.95,1294.3,1297.9,1304.1,1322.6,1339.3,1340.1,1344.9,1354,1357.4,1340.7,1342.7,1348.2,1355.1,1355.9,1354.2,1362.1,1360.1,1408.3,1411.2,1429.5,1430.1,1426.8,1423.4,1425.1,1400.8,1419.8,1432.9,1423.55,1412.1,1412.2,1412.8,1424.9,1419.3,1424.8,1426.1,1423.6,1435.9,1440.8,1439.4,1439.7,1434.5,1436.5,1427.5,1432.2,1433.3,1441.8,1437.8,1432.4,1457.5,1476.5,1484.2,1519.6,1509.5,1508.5,1517.2,1514.1,1527.8,1531.2,1523.6,1511.6,1515.7,1515.7,1508.5,1537.6,1537.2,1551.8,1549.1,1536.9,1529.4,1538.05,1535.15,1555.9,1560.4,1525.5,1515.5,1511.1,1499.2,1503.2,1507.4,1499.5,1511.5,1513.4,1515.8,1506.2,1515.1,1531.5,1540.2,1512.3,1515.2,1506.4,1472.9,1489,1507.9,1513.8,1512.9,1504.4,1503.9,1512.8,1500.9,1488.7,1497.6,1483.5,1494,1498.3,1494.1,1488.1,1487.5,1495.7,1504.7,1505.3};
static bool tooltip = true;
ImGui::Checkbox("Show Tooltip", &tooltip);
ImGui::SameLine();
static ImVec4 bullCol = ImVec4(0.000f, 1.000f, 0.441f, 1.000f);
static ImVec4 bearCol = ImVec4(0.853f, 0.050f, 0.310f, 1.000f);
ImGui::SameLine(); ImGui::ColorEdit4("##Bull", &bullCol.x, ImGuiColorEditFlags_NoInputs);
ImGui::SameLine(); ImGui::ColorEdit4("##Bear", &bearCol.x, ImGuiColorEditFlags_NoInputs);
ImPlot::GetStyle().UseLocalTime = false;
if (ImPlot::BeginPlot("Candlestick Chart",ImVec2(-1,0))) {
ImPlot::SetupAxes(NULL,NULL,0,ImPlotAxisFlags_AutoFit|ImPlotAxisFlags_RangeFit);
ImPlot::SetupAxesLimits(1546300800, 1571961600, 1250, 1600);
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Time);
ImPlot::SetupAxisLimitsConstraints(ImAxis_X1, 1546300800, 1571961600);
ImPlot::SetupAxisZoomConstraints(ImAxis_X1, 60*60*24*14, 1571961600-1546300800);
ImPlot::SetupAxisFormat(ImAxis_Y1, "$%.0f");
MyImPlot::PlotCandlestick("GOOGL",dates, opens, closes, lows, highs, 218, tooltip, 0.25f, bullCol, bearCol);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
// DEMO WINDOW
//-----------------------------------------------------------------------------
void DemoHeader(const char* label, void(*demo)()) {
if (ImGui::TreeNodeEx(label)) {
demo();
ImGui::TreePop();
}
}
void ShowDemoWindow(bool* p_open) {
static bool show_implot_metrics = false;
static bool show_implot_style_editor = false;
static bool show_imgui_metrics = false;
static bool show_imgui_style_editor = false;
static bool show_imgui_demo = false;
if (show_implot_metrics) {
ImPlot::ShowMetricsWindow(&show_implot_metrics);
}
if (show_implot_style_editor) {
ImGui::SetNextWindowSize(ImVec2(415,762), ImGuiCond_Appearing);
ImGui::Begin("Style Editor (ImPlot)", &show_implot_style_editor);
ImPlot::ShowStyleEditor();
ImGui::End();
}
if (show_imgui_style_editor) {
ImGui::Begin("Style Editor (ImGui)", &show_imgui_style_editor);
ImGui::ShowStyleEditor();
ImGui::End();
}
if (show_imgui_metrics) {
ImGui::ShowMetricsWindow(&show_imgui_metrics);
}
if (show_imgui_demo) {
ImGui::ShowDemoWindow(&show_imgui_demo);
}
ImGui::SetNextWindowPos(ImVec2(50, 50), ImGuiCond_FirstUseEver);
ImGui::SetNextWindowSize(ImVec2(600, 750), ImGuiCond_FirstUseEver);
ImGui::Begin("ImPlot Demo", p_open, ImGuiWindowFlags_MenuBar);
if (ImGui::BeginMenuBar()) {
if (ImGui::BeginMenu("Tools")) {
ImGui::MenuItem("Metrics", NULL, &show_implot_metrics);
ImGui::MenuItem("Style Editor", NULL, &show_implot_style_editor);
ImGui::Separator();
ImGui::MenuItem("ImGui Metrics", NULL, &show_imgui_metrics);
ImGui::MenuItem("ImGui Style Editor", NULL, &show_imgui_style_editor);
ImGui::MenuItem("ImGui Demo", NULL, &show_imgui_demo);
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
//-------------------------------------------------------------------------
ImGui::Text("ImPlot says hello. (%s)", IMPLOT_VERSION);
// display warning about 16-bit indices
static bool showWarning = sizeof(ImDrawIdx)*8 == 16 && (ImGui::GetIO().BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset) == false;
if (showWarning) {
ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1,1,0,1));
ImGui::TextWrapped("WARNING: ImDrawIdx is 16-bit and ImGuiBackendFlags_RendererHasVtxOffset is false. Expect visual glitches and artifacts! See README for more information.");
ImGui::PopStyleColor();
}
ImGui::Spacing();
if (ImGui::BeginTabBar("ImPlotDemoTabs")) {
if (ImGui::BeginTabItem("Plots")) {
DemoHeader("Line Plots", Demo_LinePlots);
DemoHeader("Filled Line Plots", Demo_FilledLinePlots);
DemoHeader("Shaded Plots##", Demo_ShadedPlots);
DemoHeader("Scatter Plots", Demo_ScatterPlots);
DemoHeader("Realtime Plots", Demo_RealtimePlots);
DemoHeader("Stairstep Plots", Demo_StairstepPlots);
DemoHeader("Bar Plots", Demo_BarPlots);
DemoHeader("Bar Groups", Demo_BarGroups);
DemoHeader("Bar Stacks", Demo_BarStacks);
DemoHeader("Error Bars", Demo_ErrorBars);
DemoHeader("Stem Plots##", Demo_StemPlots);
DemoHeader("Infinite Lines", Demo_InfiniteLines);
DemoHeader("Pie Charts", Demo_PieCharts);
DemoHeader("Heatmaps", Demo_Heatmaps);
DemoHeader("Histogram", Demo_Histogram);
DemoHeader("Histogram 2D", Demo_Histogram2D);
DemoHeader("Digital Plots", Demo_DigitalPlots);
DemoHeader("Images", Demo_Images);
DemoHeader("Markers and Text", Demo_MarkersAndText);
DemoHeader("NaN Values", Demo_NaNValues);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Subplots")) {
DemoHeader("Sizing", Demo_SubplotsSizing);
DemoHeader("Item Sharing", Demo_SubplotItemSharing);
DemoHeader("Axis Linking", Demo_SubplotAxisLinking);
DemoHeader("Tables", Demo_Tables);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Axes")) {
DemoHeader("Log Scale", Demo_LogScale);
DemoHeader("Symmetric Log Scale", Demo_SymmetricLogScale);
DemoHeader("Time Scale", Demo_TimeScale);
DemoHeader("Custom Scale", Demo_CustomScale);
DemoHeader("Multiple Axes", Demo_MultipleAxes);
DemoHeader("Tick Labels", Demo_TickLabels);
DemoHeader("Linked Axes", Demo_LinkedAxes);
DemoHeader("Axis Constraints", Demo_AxisConstraints);
DemoHeader("Equal Axes", Demo_EqualAxes);
DemoHeader("Auto-Fitting Data", Demo_AutoFittingData);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Tools")) {
DemoHeader("Offset and Stride", Demo_OffsetAndStride);
DemoHeader("Drag Points", Demo_DragPoints);
DemoHeader("Drag Lines", Demo_DragLines);
DemoHeader("Drag Rects", Demo_DragRects);
DemoHeader("Querying", Demo_Querying);
DemoHeader("Annotations", Demo_Annotations);
DemoHeader("Tags", Demo_Tags);
DemoHeader("Drag and Drop", Demo_DragAndDrop);
DemoHeader("Legend Options", Demo_LegendOptions);
DemoHeader("Legend Popups", Demo_LegendPopups);
DemoHeader("Colormap Widgets", Demo_ColormapWidgets);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Custom")) {
DemoHeader("Custom Styles", Demo_CustomStyles);
DemoHeader("Custom Data and Getters", Demo_CustomDataAndGetters);
DemoHeader("Custom Rendering", Demo_CustomRendering);
DemoHeader("Custom Plotters and Tooltips", Demo_CustomPlottersAndTooltips);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Config")) {
Demo_Config();
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Help")) {
Demo_Help();
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::End();
}
} // namespace ImPlot
namespace MyImPlot {
ImPlotPoint SineWave(int idx, void* data) {
WaveData* wd = (WaveData*)data;
double x = idx * wd->X;
return ImPlotPoint(x, wd->Offset + wd->Amp * sin(2 * 3.14 * wd->Freq * x));
}
ImPlotPoint SawWave(int idx, void* data) {
WaveData* wd = (WaveData*)data;
double x = idx * wd->X;
return ImPlotPoint(x, wd->Offset + wd->Amp * (-2 / 3.14 * atan(cos(3.14 * wd->Freq * x) / sin(3.14 * wd->Freq * x))));
}
ImPlotPoint Spiral(int idx, void*) {
float r = 0.9f; // outer radius
float a = 0; // inner radius
float b = 0.05f; // increment per rev
float n = (r - a) / b; // number of revolutions
double th = 2 * n * 3.14; // angle
float Th = float(th * idx / (1000 - 1));
return ImPlotPoint(0.5f+(a + b*Th / (2.0f * (float) 3.14))*cos(Th),
0.5f + (a + b*Th / (2.0f * (float)3.14))*sin(Th));
}
void Sparkline(const char* id, const float* values, int count, float min_v, float max_v, int offset, const ImVec4& col, const ImVec2& size) {
ImPlot::PushStyleVar(ImPlotStyleVar_PlotPadding, ImVec2(0,0));
if (ImPlot::BeginPlot(id,size,ImPlotFlags_CanvasOnly|ImPlotFlags_NoChild)) {
ImPlot::SetupAxes(0,0,ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, count - 1, min_v, max_v, ImGuiCond_Always);
ImPlot::SetNextLineStyle(col);
ImPlot::SetNextFillStyle(col, 0.25);
ImPlot::PlotLine(id, values, count, 1, 0, ImPlotLineFlags_Shaded, offset);
ImPlot::EndPlot();
}
ImPlot::PopStyleVar();
}
void StyleSeaborn() {
ImPlotStyle& style = ImPlot::GetStyle();
ImVec4* colors = style.Colors;
colors[ImPlotCol_Line] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Fill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerOutline] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerFill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_ErrorBar] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_PlotBg] = ImVec4(0.92f, 0.92f, 0.95f, 1.00f);
colors[ImPlotCol_PlotBorder] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImPlotCol_LegendBg] = ImVec4(0.92f, 0.92f, 0.95f, 1.00f);
colors[ImPlotCol_LegendBorder] = ImVec4(0.80f, 0.81f, 0.85f, 1.00f);
colors[ImPlotCol_LegendText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_TitleText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_InlayText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_AxisText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_AxisGrid] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_AxisBgHovered] = ImVec4(0.92f, 0.92f, 0.95f, 1.00f);
colors[ImPlotCol_AxisBgActive] = ImVec4(0.92f, 0.92f, 0.95f, 0.75f);
colors[ImPlotCol_Selection] = ImVec4(1.00f, 0.65f, 0.00f, 1.00f);
colors[ImPlotCol_Crosshairs] = ImVec4(0.23f, 0.10f, 0.64f, 0.50f);
style.LineWeight = 1.5;
style.Marker = ImPlotMarker_None;
style.MarkerSize = 4;
style.MarkerWeight = 1;
style.FillAlpha = 1.0f;
style.ErrorBarSize = 5;
style.ErrorBarWeight = 1.5f;
style.DigitalBitHeight = 8;
style.DigitalBitGap = 4;
style.PlotBorderSize = 0;
style.MinorAlpha = 1.0f;
style.MajorTickLen = ImVec2(0,0);
style.MinorTickLen = ImVec2(0,0);
style.MajorTickSize = ImVec2(0,0);
style.MinorTickSize = ImVec2(0,0);
style.MajorGridSize = ImVec2(1.2f,1.2f);
style.MinorGridSize = ImVec2(1.2f,1.2f);
style.PlotPadding = ImVec2(12,12);
style.LabelPadding = ImVec2(5,5);
style.LegendPadding = ImVec2(5,5);
style.MousePosPadding = ImVec2(5,5);
style.PlotMinSize = ImVec2(300,225);
}
} // namespaece MyImPlot
// WARNING:
//
// You can use "implot_internal.h" to build custom plotting fuctions or extend ImPlot.
// However, note that forward compatibility of this file is not guaranteed and the
// internal API is subject to change. At some point we hope to bring more of this
// into the public API and expose the necessary building blocks to fully support
// custom plotters. For now, proceed at your own risk!
#include "implot_internal.h"
namespace MyImPlot {
template <typename T>
int BinarySearch(const T* arr, int l, int r, T x) {
if (r >= l) {
int mid = l + (r - l) / 2;
if (arr[mid] == x)
return mid;
if (arr[mid] > x)
return BinarySearch(arr, l, mid - 1, x);
return BinarySearch(arr, mid + 1, r, x);
}
return -1;
}
void PlotCandlestick(const char* label_id, const double* xs, const double* opens, const double* closes, const double* lows, const double* highs, int count, bool tooltip, float width_percent, ImVec4 bullCol, ImVec4 bearCol) {
// get ImGui window DrawList
ImDrawList* draw_list = ImPlot::GetPlotDrawList();
// calc real value width
double half_width = count > 1 ? (xs[1] - xs[0]) * width_percent : width_percent;
// custom tool
if (ImPlot::IsPlotHovered() && tooltip) {
ImPlotPoint mouse = ImPlot::GetPlotMousePos();
mouse.x = ImPlot::RoundTime(ImPlotTime::FromDouble(mouse.x), ImPlotTimeUnit_Day).ToDouble();
float tool_l = ImPlot::PlotToPixels(mouse.x - half_width * 1.5, mouse.y).x;
float tool_r = ImPlot::PlotToPixels(mouse.x + half_width * 1.5, mouse.y).x;
float tool_t = ImPlot::GetPlotPos().y;
float tool_b = tool_t + ImPlot::GetPlotSize().y;
ImPlot::PushPlotClipRect();
draw_list->AddRectFilled(ImVec2(tool_l, tool_t), ImVec2(tool_r, tool_b), IM_COL32(128,128,128,64));
ImPlot::PopPlotClipRect();
// find mouse location index
int idx = BinarySearch(xs, 0, count - 1, mouse.x);
// render tool tip (won't be affected by plot clip rect)
if (idx != -1) {
ImGui::BeginTooltip();
char buff[32];
ImPlot::FormatDate(ImPlotTime::FromDouble(xs[idx]),buff,32,ImPlotDateFmt_DayMoYr,ImPlot::GetStyle().UseISO8601);
ImGui::Text("Day: %s", buff);
ImGui::Text("Open: $%.2f", opens[idx]);
ImGui::Text("Close: $%.2f", closes[idx]);
ImGui::Text("Low: $%.2f", lows[idx]);
ImGui::Text("High: $%.2f", highs[idx]);
ImGui::EndTooltip();
}
}
// begin plot item
if (ImPlot::BeginItem(label_id)) {
// override legend icon color
ImPlot::GetCurrentItem()->Color = IM_COL32(64,64,64,255);
// fit data if requested
if (ImPlot::FitThisFrame()) {
for (int i = 0; i < count; ++i) {
ImPlot::FitPoint(ImPlotPoint(xs[i], lows[i]));
ImPlot::FitPoint(ImPlotPoint(xs[i], highs[i]));
}
}
// render data
for (int i = 0; i < count; ++i) {
ImVec2 open_pos = ImPlot::PlotToPixels(xs[i] - half_width, opens[i]);
ImVec2 close_pos = ImPlot::PlotToPixels(xs[i] + half_width, closes[i]);
ImVec2 low_pos = ImPlot::PlotToPixels(xs[i], lows[i]);
ImVec2 high_pos = ImPlot::PlotToPixels(xs[i], highs[i]);
ImU32 color = ImGui::GetColorU32(opens[i] > closes[i] ? bearCol : bullCol);
draw_list->AddLine(low_pos, high_pos, color);
draw_list->AddRectFilled(open_pos, close_pos, color);
}
// end plot item
ImPlot::EndItem();
}
}
} // namespace MyImplot
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui.cpp | // dear imgui, v1.89.4
// (main code and documentation)
// Help:
// - Read FAQ at http://dearimgui.org/faq
// - Newcomers, read 'Programmer guide' below for notes on how to setup Dear ImGui in your codebase.
// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
// Read imgui.cpp for details, links and comments.
// Resources:
// - FAQ http://dearimgui.org/faq
// - Homepage & latest https://github.com/ocornut/imgui
// - Releases & changelog https://github.com/ocornut/imgui/releases
// - Gallery https://github.com/ocornut/imgui/issues/5886 (please post your screenshots/video there!)
// - Wiki https://github.com/ocornut/imgui/wiki (lots of good stuff there)
// - Glossary https://github.com/ocornut/imgui/wiki/Glossary
// - Issues & support https://github.com/ocornut/imgui/issues
// Getting Started?
// - For first-time users having issues compiling/linking/running or issues loading fonts:
// please post in https://github.com/ocornut/imgui/discussions if you cannot find a solution in resources above.
// Developed by Omar Cornut and every direct or indirect contributors to the GitHub.
// See LICENSE.txt for copyright and licensing details (standard MIT License).
// This library is free but needs your support to sustain development and maintenance.
// Businesses: you can support continued development via invoiced technical support, maintenance and sponsoring contracts. Please reach out to "contact AT dearimgui.com".
// Individuals: you can support continued development via donations. See docs/README or web page.
// It is recommended that you don't modify imgui.cpp! It will become difficult for you to update the library.
// Note that 'ImGui::' being a namespace, you can add functions into the namespace from your own source files, without
// modifying imgui.h or imgui.cpp. You may include imgui_internal.h to access internal data structures, but it doesn't
// come with any guarantee of forward compatibility. Discussing your changes on the GitHub Issue Tracker may lead you
// to a better solution or official support for them.
/*
Index of this file:
DOCUMENTATION
- MISSION STATEMENT
- CONTROLS GUIDE
- PROGRAMMER GUIDE
- READ FIRST
- HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI
- GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE
- HOW A SIMPLE APPLICATION MAY LOOK LIKE
- HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE
- API BREAKING CHANGES (read me when you update!)
- FREQUENTLY ASKED QUESTIONS (FAQ)
- Read all answers online: https://www.dearimgui.org/faq, or in docs/FAQ.md (with a Markdown viewer)
CODE
(search for "[SECTION]" in the code to find them)
// [SECTION] INCLUDES
// [SECTION] FORWARD DECLARATIONS
// [SECTION] CONTEXT AND MEMORY ALLOCATORS
// [SECTION] USER FACING STRUCTURES (ImGuiStyle, ImGuiIO)
// [SECTION] MISC HELPERS/UTILITIES (Geometry functions)
// [SECTION] MISC HELPERS/UTILITIES (String, Format, Hash functions)
// [SECTION] MISC HELPERS/UTILITIES (File functions)
// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
// [SECTION] MISC HELPERS/UTILITIES (Color functions)
// [SECTION] ImGuiStorage
// [SECTION] ImGuiTextFilter
// [SECTION] ImGuiTextBuffer, ImGuiTextIndex
// [SECTION] ImGuiListClipper
// [SECTION] STYLING
// [SECTION] RENDER HELPERS
// [SECTION] INITIALIZATION, SHUTDOWN
// [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!)
// [SECTION] INPUTS
// [SECTION] ERROR CHECKING
// [SECTION] LAYOUT
// [SECTION] SCROLLING
// [SECTION] TOOLTIPS
// [SECTION] POPUPS
// [SECTION] KEYBOARD/GAMEPAD NAVIGATION
// [SECTION] DRAG AND DROP
// [SECTION] LOGGING/CAPTURING
// [SECTION] SETTINGS
// [SECTION] LOCALIZATION
// [SECTION] VIEWPORTS, PLATFORM WINDOWS
// [SECTION] PLATFORM DEPENDENT HELPERS
// [SECTION] METRICS/DEBUGGER WINDOW
// [SECTION] DEBUG LOG WINDOW
// [SECTION] OTHER DEBUG TOOLS (ITEM PICKER, STACK TOOL)
*/
//-----------------------------------------------------------------------------
// DOCUMENTATION
//-----------------------------------------------------------------------------
/*
MISSION STATEMENT
=================
- Easy to use to create code-driven and data-driven tools.
- Easy to use to create ad hoc short-lived tools and long-lived, more elaborate tools.
- Easy to hack and improve.
- Minimize setup and maintenance.
- Minimize state storage on user side.
- Minimize state synchronization.
- Portable, minimize dependencies, run on target (consoles, phones, etc.).
- Efficient runtime and memory consumption.
Designed for developers and content-creators, not the typical end-user! Some of the current weaknesses includes:
- Doesn't look fancy, doesn't animate.
- Limited layout features, intricate layouts are typically crafted in code.
CONTROLS GUIDE
==============
- MOUSE CONTROLS
- Mouse wheel: Scroll vertically.
- SHIFT+Mouse wheel: Scroll horizontally.
- Click [X]: Close a window, available when 'bool* p_open' is passed to ImGui::Begin().
- Click ^, Double-Click title: Collapse window.
- Drag on corner/border: Resize window (double-click to auto fit window to its contents).
- Drag on any empty space: Move window (unless io.ConfigWindowsMoveFromTitleBarOnly = true).
- Left-click outside popup: Close popup stack (right-click over underlying popup: Partially close popup stack).
- TEXT EDITOR
- Hold SHIFT or Drag Mouse: Select text.
- CTRL+Left/Right: Word jump.
- CTRL+Shift+Left/Right: Select words.
- CTRL+A or Double-Click: Select All.
- CTRL+X, CTRL+C, CTRL+V: Use OS clipboard.
- CTRL+Z, CTRL+Y: Undo, Redo.
- ESCAPE: Revert text to its original value.
- On OSX, controls are automatically adjusted to match standard OSX text editing shortcuts and behaviors.
- KEYBOARD CONTROLS
- Basic:
- Tab, SHIFT+Tab Cycle through text editable fields.
- CTRL+Tab, CTRL+Shift+Tab Cycle through windows.
- CTRL+Click Input text into a Slider or Drag widget.
- Extended features with `io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard`:
- Tab, SHIFT+Tab: Cycle through every items.
- Arrow keys Move through items using directional navigation. Tweak value.
- Arrow keys + Alt, Shift Tweak slower, tweak faster (when using arrow keys).
- Enter Activate item (prefer text input when possible).
- Space Activate item (prefer tweaking with arrows when possible).
- Escape Deactivate item, leave child window, close popup.
- Page Up, Page Down Previous page, next page.
- Home, End Scroll to top, scroll to bottom.
- Alt Toggle between scrolling layer and menu layer.
- CTRL+Tab then Ctrl+Arrows Move window. Hold SHIFT to resize instead of moving.
- Output when ImGuiConfigFlags_NavEnableKeyboard set,
- io.WantCaptureKeyboard flag is set when keyboard is claimed.
- io.NavActive: true when a window is focused and it doesn't have the ImGuiWindowFlags_NoNavInputs flag set.
- io.NavVisible: true when the navigation cursor is visible (usually goes to back false when mouse is used).
- GAMEPAD CONTROLS
- Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
- Particularly useful to use Dear ImGui on a console system (e.g. PlayStation, Switch, Xbox) without a mouse!
- Download controller mapping PNG/PSD at http://dearimgui.org/controls_sheets
- Backend support: backend needs to:
- Set 'io.BackendFlags |= ImGuiBackendFlags_HasGamepad' + call io.AddKeyEvent/AddKeyAnalogEvent() with ImGuiKey_Gamepad_XXX keys.
- For analog values (0.0f to 1.0f), backend is responsible to handling a dead-zone and rescaling inputs accordingly.
Backend code will probably need to transform your raw inputs (such as e.g. remapping your 0.2..0.9 raw input range to 0.0..1.0 imgui range, etc.).
- BEFORE 1.87, BACKENDS USED TO WRITE TO io.NavInputs[]. This is now obsolete. Please call io functions instead!
- If you need to share inputs between your game and the Dear ImGui interface, the easiest approach is to go all-or-nothing,
with a buttons combo to toggle the target. Please reach out if you think the game vs navigation input sharing could be improved.
- REMOTE INPUTS SHARING & MOUSE EMULATION
- PS4/PS5 users: Consider emulating a mouse cursor with DualShock touch pad or a spare analog stick as a mouse-emulation fallback.
- Consoles/Tablet/Phone users: Consider using a Synergy 1.x server (on your PC) + run examples/libs/synergy/uSynergy.c (on your console/tablet/phone app)
in order to share your PC mouse/keyboard.
- See https://github.com/ocornut/imgui/wiki/Useful-Extensions#remoting for other remoting solutions.
- On a TV/console system where readability may be lower or mouse inputs may be awkward, you may want to set the ImGuiConfigFlags_NavEnableSetMousePos flag.
Enabling ImGuiConfigFlags_NavEnableSetMousePos + ImGuiBackendFlags_HasSetMousePos instructs Dear ImGui to move your mouse cursor along with navigation movements.
When enabled, the NewFrame() function may alter 'io.MousePos' and set 'io.WantSetMousePos' to notify you that it wants the mouse cursor to be moved.
When that happens your backend NEEDS to move the OS or underlying mouse cursor on the next frame. Some of the backends in examples/ do that.
(If you set the NavEnableSetMousePos flag but don't honor 'io.WantSetMousePos' properly, Dear ImGui will misbehave as it will see your mouse moving back & forth!)
(In a setup when you may not have easy control over the mouse cursor, e.g. uSynergy.c doesn't expose moving remote mouse cursor, you may want
to set a boolean to ignore your other external mouse positions until the external source is moved again.)
PROGRAMMER GUIDE
================
READ FIRST
----------
- Remember to check the wonderful Wiki (https://github.com/ocornut/imgui/wiki)
- Your code creates the UI, if your code doesn't run the UI is gone! The UI can be highly dynamic, there are no construction or
destruction steps, less superfluous data retention on your side, less state duplication, less state synchronization, fewer bugs.
- Call and read ImGui::ShowDemoWindow() for demo code demonstrating most features.
- The library is designed to be built from sources. Avoid pre-compiled binaries and packaged versions. See imconfig.h to configure your build.
- Dear ImGui is an implementation of the IMGUI paradigm (immediate-mode graphical user interface, a term coined by Casey Muratori).
You can learn about IMGUI principles at http://www.johno.se/book/imgui.html, http://mollyrocket.com/861 & more links in Wiki.
- Dear ImGui is a "single pass" rasterizing implementation of the IMGUI paradigm, aimed at ease of use and high-performances.
For every application frame, your UI code will be called only once. This is in contrast to e.g. Unity's implementation of an IMGUI,
where the UI code is called multiple times ("multiple passes") from a single entry point. There are pros and cons to both approaches.
- Our origin is on the top-left. In axis aligned bounding boxes, Min = top-left, Max = bottom-right.
- This codebase is also optimized to yield decent performances with typical "Debug" builds settings.
- Please make sure you have asserts enabled (IM_ASSERT redirects to assert() by default, but can be redirected).
If you get an assert, read the messages and comments around the assert.
- C++: this is a very C-ish codebase: we don't rely on C++11, we don't include any C++ headers, and ImGui:: is a namespace.
- C++: ImVec2/ImVec4 do not expose math operators by default, because it is expected that you use your own math types.
See FAQ "How can I use my own math types instead of ImVec2/ImVec4?" for details about setting up imconfig.h for that.
However, imgui_internal.h can optionally export math operators for ImVec2/ImVec4, which we use in this codebase.
- C++: pay attention that ImVector<> manipulates plain-old-data and does not honor construction/destruction (avoid using it in your code!).
HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI
----------------------------------------------
- Overwrite all the sources files except for imconfig.h (if you have modified your copy of imconfig.h)
- Or maintain your own branch where you have imconfig.h modified as a top-most commit which you can regularly rebase over "master".
- You can also use '#define IMGUI_USER_CONFIG "my_config_file.h" to redirect configuration to your own file.
- Read the "API BREAKING CHANGES" section (below). This is where we list occasional API breaking changes.
If a function/type has been renamed / or marked obsolete, try to fix the name in your code before it is permanently removed
from the public API. If you have a problem with a missing function/symbols, search for its name in the code, there will
likely be a comment about it. Please report any issue to the GitHub page!
- To find out usage of old API, you can add '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' in your configuration file.
- Try to keep your copy of Dear ImGui reasonably up to date.
GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE
---------------------------------------------------------------
- Run and study the examples and demo in imgui_demo.cpp to get acquainted with the library.
- In the majority of cases you should be able to use unmodified backends files available in the backends/ folder.
- Add the Dear ImGui source files + selected backend source files to your projects or using your preferred build system.
It is recommended you build and statically link the .cpp files as part of your project and NOT as a shared library (DLL).
- You can later customize the imconfig.h file to tweak some compile-time behavior, such as integrating Dear ImGui types with your own maths types.
- When using Dear ImGui, your programming IDE is your friend: follow the declaration of variables, functions and types to find comments about them.
- Dear ImGui never touches or knows about your GPU state. The only function that knows about GPU is the draw function that you provide.
Effectively it means you can create widgets at any time in your code, regardless of considerations of being in "update" vs "render"
phases of your own application. All rendering information is stored into command-lists that you will retrieve after calling ImGui::Render().
- Refer to the backends and demo applications in the examples/ folder for instruction on how to setup your code.
- If you are running over a standard OS with a common graphics API, you should be able to use unmodified imgui_impl_*** files from the examples/ folder.
HOW A SIMPLE APPLICATION MAY LOOK LIKE
--------------------------------------
EXHIBIT 1: USING THE EXAMPLE BACKENDS (= imgui_impl_XXX.cpp files from the backends/ folder).
The sub-folders in examples/ contain examples applications following this structure.
// Application init: create a dear imgui context, setup some options, load fonts
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
// TODO: Set optional io.ConfigFlags values, e.g. 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard' to enable keyboard controls.
// TODO: Fill optional fields of the io structure later.
// TODO: Load TTF/OTF fonts if you don't want to use the default font.
// Initialize helper Platform and Renderer backends (here we are using imgui_impl_win32.cpp and imgui_impl_dx11.cpp)
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
// Application main loop
while (true)
{
// Feed inputs to dear imgui, start new frame
ImGui_ImplDX11_NewFrame();
ImGui_ImplWin32_NewFrame();
ImGui::NewFrame();
// Any application code here
ImGui::Text("Hello, world!");
// Render dear imgui into screen
ImGui::Render();
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
g_pSwapChain->Present(1, 0);
}
// Shutdown
ImGui_ImplDX11_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();
EXHIBIT 2: IMPLEMENTING CUSTOM BACKEND / CUSTOM ENGINE
// Application init: create a dear imgui context, setup some options, load fonts
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
// TODO: Set optional io.ConfigFlags values, e.g. 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard' to enable keyboard controls.
// TODO: Fill optional fields of the io structure later.
// TODO: Load TTF/OTF fonts if you don't want to use the default font.
// Build and load the texture atlas into a texture
// (In the examples/ app this is usually done within the ImGui_ImplXXX_Init() function from one of the demo Renderer)
int width, height;
unsigned char* pixels = NULL;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
// At this point you've got the texture data and you need to upload that to your graphic system:
// After we have created the texture, store its pointer/identifier (_in whichever format your engine uses_) in 'io.Fonts->TexID'.
// This will be passed back to your via the renderer. Basically ImTextureID == void*. Read FAQ for details about ImTextureID.
MyTexture* texture = MyEngine::CreateTextureFromMemoryPixels(pixels, width, height, TEXTURE_TYPE_RGBA32)
io.Fonts->SetTexID((void*)texture);
// Application main loop
while (true)
{
// Setup low-level inputs, e.g. on Win32: calling GetKeyboardState(), or write to those fields from your Windows message handlers, etc.
// (In the examples/ app this is usually done within the ImGui_ImplXXX_NewFrame() function from one of the demo Platform Backends)
io.DeltaTime = 1.0f/60.0f; // set the time elapsed since the previous frame (in seconds)
io.DisplaySize.x = 1920.0f; // set the current display width
io.DisplaySize.y = 1280.0f; // set the current display height here
io.AddMousePosEvent(mouse_x, mouse_y); // update mouse position
io.AddMouseButtonEvent(0, mouse_b[0]); // update mouse button states
io.AddMouseButtonEvent(1, mouse_b[1]); // update mouse button states
// Call NewFrame(), after this point you can use ImGui::* functions anytime
// (So you want to try calling NewFrame() as early as you can in your main loop to be able to use Dear ImGui everywhere)
ImGui::NewFrame();
// Most of your application code here
ImGui::Text("Hello, world!");
MyGameUpdate(); // may use any Dear ImGui functions, e.g. ImGui::Begin("My window"); ImGui::Text("Hello, world!"); ImGui::End();
MyGameRender(); // may use any Dear ImGui functions as well!
// Render dear imgui, swap buffers
// (You want to try calling EndFrame/Render as late as you can, to be able to use Dear ImGui in your own game rendering code)
ImGui::EndFrame();
ImGui::Render();
ImDrawData* draw_data = ImGui::GetDrawData();
MyImGuiRenderFunction(draw_data);
SwapBuffers();
}
// Shutdown
ImGui::DestroyContext();
To decide whether to dispatch mouse/keyboard inputs to Dear ImGui to the rest of your application,
you should read the 'io.WantCaptureMouse', 'io.WantCaptureKeyboard' and 'io.WantTextInput' flags!
Please read the FAQ and example applications for details about this!
HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE
---------------------------------------------
The backends in impl_impl_XXX.cpp files contain many working implementations of a rendering function.
void MyImGuiRenderFunction(ImDrawData* draw_data)
{
// TODO: Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
// TODO: Setup texture sampling state: sample with bilinear filtering (NOT point/nearest filtering). Use 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines;' to allow point/nearest filtering.
// TODO: Setup viewport covering draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
// TODO: Setup orthographic projection matrix cover draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
// TODO: Setup shader: vertex { float2 pos, float2 uv, u32 color }, fragment shader sample color from 1 texture, multiply by vertex color.
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data; // vertex buffer generated by Dear ImGui
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data; // index buffer generated by Dear ImGui
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
continue;
// We are using scissoring to clip some objects. All low-level graphics API should support it.
// - If your engine doesn't support scissoring yet, you may ignore this at first. You will get some small glitches
// (some elements visible outside their bounds) but you can fix that once everything else works!
// - Clipping coordinates are provided in imgui coordinates space:
// - For a given viewport, draw_data->DisplayPos == viewport->Pos and draw_data->DisplaySize == viewport->Size
// - In a single viewport application, draw_data->DisplayPos == (0,0) and draw_data->DisplaySize == io.DisplaySize, but always use GetMainViewport()->Pos/Size instead of hardcoding those values.
// - In the interest of supporting multi-viewport applications (see 'docking' branch on github),
// always subtract draw_data->DisplayPos from clipping bounds to convert them to your viewport space.
// - Note that pcmd->ClipRect contains Min+Max bounds. Some graphics API may use Min+Max, other may use Min+Size (size being Max-Min)
MyEngineSetScissor(clip_min.x, clip_min.y, clip_max.x, clip_max.y);
// The texture for the draw call is specified by pcmd->GetTexID().
// The vast majority of draw calls will use the Dear ImGui texture atlas, which value you have set yourself during initialization.
MyEngineBindTexture((MyTexture*)pcmd->GetTexID());
// Render 'pcmd->ElemCount/3' indexed triangles.
// By default the indices ImDrawIdx are 16-bit, you can change them to 32-bit in imconfig.h if your engine doesn't support 16-bit indices.
MyEngineDrawIndexedTriangles(pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset, vtx_buffer, pcmd->VtxOffset);
}
}
}
}
API BREAKING CHANGES
====================
Occasionally introducing changes that are breaking the API. We try to make the breakage minor and easy to fix.
Below is a change-log of API breaking changes only. If you are using one of the functions listed, expect to have to fix some code.
When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
You can read releases logs https://github.com/ocornut/imgui/releases for more details.
- 2023/03/14 (1.89.4) - commented out redirecting enums/functions names that were marked obsolete two years ago:
- ImGuiSliderFlags_ClampOnInput -> use ImGuiSliderFlags_AlwaysClamp
- ImGuiInputTextFlags_AlwaysInsertMode -> use ImGuiInputTextFlags_AlwaysOverwrite
- ImDrawList::AddBezierCurve() -> use ImDrawList::AddBezierCubic()
- ImDrawList::PathBezierCurveTo() -> use ImDrawList::PathBezierCubicCurveTo()
- 2023/03/09 (1.89.4) - renamed PushAllowKeyboardFocus()/PopAllowKeyboardFocus() to PushTabStop()/PopTabStop(). Kept inline redirection functions (will obsolete).
- 2023/03/09 (1.89.4) - tooltips: Added 'bool' return value to BeginTooltip() for API consistency. Please only submit contents and call EndTooltip() if BeginTooltip() returns true. In reality the function will _currently_ always return true, but further changes down the line may change this, best to clarify API sooner.
- 2023/02/15 (1.89.4) - moved the optional "courtesy maths operators" implementation from imgui_internal.h in imgui.h.
Even though we encourage using your own maths types and operators by setting up IM_VEC2_CLASS_EXTRA,
it has been frequently requested by people to use our own. We had an opt-in define which was
previously fulfilled in imgui_internal.h. It is now fulfilled in imgui.h. (#6164)
- OK: #define IMGUI_DEFINE_MATH_OPERATORS / #include "imgui.h" / #include "imgui_internal.h"
- Error: #include "imgui.h" / #define IMGUI_DEFINE_MATH_OPERATORS / #include "imgui_internal.h"
- 2023/02/07 (1.89.3) - backends: renamed "imgui_impl_sdl.cpp" to "imgui_impl_sdl2.cpp" and "imgui_impl_sdl.h" to "imgui_impl_sdl2.h". (#6146) This is in prevision for the future release of SDL3.
- 2022/10/26 (1.89) - commented out redirecting OpenPopupContextItem() which was briefly the name of OpenPopupOnItemClick() from 1.77 to 1.79.
- 2022/10/12 (1.89) - removed runtime patching of invalid "%f"/"%0.f" format strings for DragInt()/SliderInt(). This was obsoleted in 1.61 (May 2018). See 1.61 changelog for details.
- 2022/09/26 (1.89) - renamed and merged keyboard modifiers key enums and flags into a same set. Kept inline redirection enums (will obsolete).
- ImGuiKey_ModCtrl and ImGuiModFlags_Ctrl -> ImGuiMod_Ctrl
- ImGuiKey_ModShift and ImGuiModFlags_Shift -> ImGuiMod_Shift
- ImGuiKey_ModAlt and ImGuiModFlags_Alt -> ImGuiMod_Alt
- ImGuiKey_ModSuper and ImGuiModFlags_Super -> ImGuiMod_Super
the ImGuiKey_ModXXX were introduced in 1.87 and mostly used by backends.
the ImGuiModFlags_XXX have been exposed in imgui.h but not really used by any public api only by third-party extensions.
exceptionally commenting out the older ImGuiKeyModFlags_XXX names ahead of obsolescence schedule to reduce confusion and because they were not meant to be used anyway.
- 2022/09/20 (1.89) - ImGuiKey is now a typed enum, allowing ImGuiKey_XXX symbols to be named in debuggers.
this will require uses of legacy backend-dependent indices to be casted, e.g.
- with imgui_impl_glfw: IsKeyPressed(GLFW_KEY_A) -> IsKeyPressed((ImGuiKey)GLFW_KEY_A);
- with imgui_impl_win32: IsKeyPressed('A') -> IsKeyPressed((ImGuiKey)'A')
- etc. However if you are upgrading code you might well use the better, backend-agnostic IsKeyPressed(ImGuiKey_A) now!
- 2022/09/12 (1.89) - removed the bizarre legacy default argument for 'TreePush(const void* ptr = NULL)', always pass a pointer value explicitly. NULL/nullptr is ok but require cast, e.g. TreePush((void*)nullptr);
- 2022/09/05 (1.89) - commented out redirecting functions/enums names that were marked obsolete in 1.77 and 1.78 (June 2020):
- DragScalar(), DragScalarN(), DragFloat(), DragFloat2(), DragFloat3(), DragFloat4(): For old signatures ending with (..., const char* format, float power = 1.0f) -> use (..., format ImGuiSliderFlags_Logarithmic) if power != 1.0f.
- SliderScalar(), SliderScalarN(), SliderFloat(), SliderFloat2(), SliderFloat3(), SliderFloat4(): For old signatures ending with (..., const char* format, float power = 1.0f) -> use (..., format ImGuiSliderFlags_Logarithmic) if power != 1.0f.
- BeginPopupContextWindow(const char*, ImGuiMouseButton, bool) -> use BeginPopupContextWindow(const char*, ImGuiPopupFlags)
- 2022/09/02 (1.89) - obsoleted using SetCursorPos()/SetCursorScreenPos() to extend parent window/cell boundaries.
this relates to when moving the cursor position beyond current boundaries WITHOUT submitting an item.
- previously this would make the window content size ~200x200:
Begin(...) + SetCursorScreenPos(GetCursorScreenPos() + ImVec2(200,200)) + End();
- instead, please submit an item:
Begin(...) + SetCursorScreenPos(GetCursorScreenPos() + ImVec2(200,200)) + Dummy(ImVec2(0,0)) + End();
- alternative:
Begin(...) + Dummy(ImVec2(200,200)) + End();
- content size is now only extended when submitting an item!
- with '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' this will now be detected and assert.
- without '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' this will silently be fixed until we obsolete it.
- 2022/08/03 (1.89) - changed signature of ImageButton() function. Kept redirection function (will obsolete).
- added 'const char* str_id' parameter + removed 'int frame_padding = -1' parameter.
- old signature: bool ImageButton(ImTextureID tex_id, ImVec2 size, ImVec2 uv0 = ImVec2(0,0), ImVec2 uv1 = ImVec2(1,1), int frame_padding = -1, ImVec4 bg_col = ImVec4(0,0,0,0), ImVec4 tint_col = ImVec4(1,1,1,1));
- used the ImTextureID value to create an ID. This was inconsistent with other functions, led to ID conflicts, and caused problems with engines using transient ImTextureID values.
- had a FramePadding override which was inconsistent with other functions and made the already-long signature even longer.
- new signature: bool ImageButton(const char* str_id, ImTextureID tex_id, ImVec2 size, ImVec2 uv0 = ImVec2(0,0), ImVec2 uv1 = ImVec2(1,1), ImVec4 bg_col = ImVec4(0,0,0,0), ImVec4 tint_col = ImVec4(1,1,1,1));
- requires an explicit identifier. You may still use e.g. PushID() calls and then pass an empty identifier.
- always uses style.FramePadding for padding, to be consistent with other buttons. You may use PushStyleVar() to alter this.
- 2022/07/08 (1.89) - inputs: removed io.NavInputs[] and ImGuiNavInput enum (following 1.87 changes).
- Official backends from 1.87+ -> no issue.
- Official backends from 1.60 to 1.86 -> will build and convert gamepad inputs, unless IMGUI_DISABLE_OBSOLETE_KEYIO is defined. Need updating!
- Custom backends not writing to io.NavInputs[] -> no issue.
- Custom backends writing to io.NavInputs[] -> will build and convert gamepad inputs, unless IMGUI_DISABLE_OBSOLETE_KEYIO is defined. Need fixing!
- TL;DR: Backends should call io.AddKeyEvent()/io.AddKeyAnalogEvent() with ImGuiKey_GamepadXXX values instead of filling io.NavInput[].
- 2022/06/15 (1.88) - renamed IMGUI_DISABLE_METRICS_WINDOW to IMGUI_DISABLE_DEBUG_TOOLS for correctness. kept support for old define (will obsolete).
- 2022/05/03 (1.88) - backends: osx: removed ImGui_ImplOSX_HandleEvent() from backend API in favor of backend automatically handling event capture. All ImGui_ImplOSX_HandleEvent() calls should be removed as they are now unnecessary.
- 2022/04/05 (1.88) - inputs: renamed ImGuiKeyModFlags to ImGuiModFlags. Kept inline redirection enums (will obsolete). This was never used in public API functions but technically present in imgui.h and ImGuiIO.
- 2022/01/20 (1.87) - inputs: reworded gamepad IO.
- Backend writing to io.NavInputs[] -> backend should call io.AddKeyEvent()/io.AddKeyAnalogEvent() with ImGuiKey_GamepadXXX values.
- 2022/01/19 (1.87) - sliders, drags: removed support for legacy arithmetic operators (+,+-,*,/) when inputing text. This doesn't break any api/code but a feature that used to be accessible by end-users (which seemingly no one used).
- 2022/01/17 (1.87) - inputs: reworked mouse IO.
- Backend writing to io.MousePos -> backend should call io.AddMousePosEvent()
- Backend writing to io.MouseDown[] -> backend should call io.AddMouseButtonEvent()
- Backend writing to io.MouseWheel -> backend should call io.AddMouseWheelEvent()
- Backend writing to io.MouseHoveredViewport -> backend should call io.AddMouseViewportEvent() [Docking branch w/ multi-viewports only]
note: for all calls to IO new functions, the Dear ImGui context should be bound/current.
read https://github.com/ocornut/imgui/issues/4921 for details.
- 2022/01/10 (1.87) - inputs: reworked keyboard IO. Removed io.KeyMap[], io.KeysDown[] in favor of calling io.AddKeyEvent(). Removed GetKeyIndex(), now unecessary. All IsKeyXXX() functions now take ImGuiKey values. All features are still functional until IMGUI_DISABLE_OBSOLETE_KEYIO is defined. Read Changelog and Release Notes for details.
- IsKeyPressed(MY_NATIVE_KEY_XXX) -> use IsKeyPressed(ImGuiKey_XXX)
- IsKeyPressed(GetKeyIndex(ImGuiKey_XXX)) -> use IsKeyPressed(ImGuiKey_XXX)
- Backend writing to io.KeyMap[],io.KeysDown[] -> backend should call io.AddKeyEvent() (+ call io.SetKeyEventNativeData() if you want legacy user code to stil function with legacy key codes).
- Backend writing to io.KeyCtrl, io.KeyShift.. -> backend should call io.AddKeyEvent() with ImGuiMod_XXX values. *IF YOU PULLED CODE BETWEEN 2021/01/10 and 2021/01/27: We used to have a io.AddKeyModsEvent() function which was now replaced by io.AddKeyEvent() with ImGuiMod_XXX values.*
- one case won't work with backward compatibility: if your custom backend used ImGuiKey as mock native indices (e.g. "io.KeyMap[ImGuiKey_A] = ImGuiKey_A") because those values are now larger than the legacy KeyDown[] array. Will assert.
- inputs: added ImGuiKey_ModCtrl/ImGuiKey_ModShift/ImGuiKey_ModAlt/ImGuiKey_ModSuper values to submit keyboard modifiers using io.AddKeyEvent(), instead of writing directly to io.KeyCtrl, io.KeyShift, io.KeyAlt, io.KeySuper.
- 2022/01/05 (1.87) - inputs: renamed ImGuiKey_KeyPadEnter to ImGuiKey_KeypadEnter to align with new symbols. Kept redirection enum.
- 2022/01/05 (1.87) - removed io.ImeSetInputScreenPosFn() in favor of more flexible io.SetPlatformImeDataFn(). Removed 'void* io.ImeWindowHandle' in favor of writing to 'void* ImGuiViewport::PlatformHandleRaw'.
- 2022/01/01 (1.87) - commented out redirecting functions/enums names that were marked obsolete in 1.69, 1.70, 1.71, 1.72 (March-July 2019)
- ImGui::SetNextTreeNodeOpen() -> use ImGui::SetNextItemOpen()
- ImGui::GetContentRegionAvailWidth() -> use ImGui::GetContentRegionAvail().x
- ImGui::TreeAdvanceToLabelPos() -> use ImGui::SetCursorPosX(ImGui::GetCursorPosX() + ImGui::GetTreeNodeToLabelSpacing());
- ImFontAtlas::CustomRect -> use ImFontAtlasCustomRect
- ImGuiColorEditFlags_RGB/HSV/HEX -> use ImGuiColorEditFlags_DisplayRGB/HSV/Hex
- 2021/12/20 (1.86) - backends: removed obsolete Marmalade backend (imgui_impl_marmalade.cpp) + example. Find last supported version at https://github.com/ocornut/imgui/wiki/Bindings
- 2021/11/04 (1.86) - removed CalcListClipping() function. Prefer using ImGuiListClipper which can return non-contiguous ranges. Please open an issue if you think you really need this function.
- 2021/08/23 (1.85) - removed GetWindowContentRegionWidth() function. keep inline redirection helper. can use 'GetWindowContentRegionMax().x - GetWindowContentRegionMin().x' instead for generally 'GetContentRegionAvail().x' is more useful.
- 2021/07/26 (1.84) - commented out redirecting functions/enums names that were marked obsolete in 1.67 and 1.69 (March 2019):
- ImGui::GetOverlayDrawList() -> use ImGui::GetForegroundDrawList()
- ImFont::GlyphRangesBuilder -> use ImFontGlyphRangesBuilder
- 2021/05/19 (1.83) - backends: obsoleted direct access to ImDrawCmd::TextureId in favor of calling ImDrawCmd::GetTexID().
- if you are using official backends from the source tree: you have nothing to do.
- if you have copied old backend code or using your own: change access to draw_cmd->TextureId to draw_cmd->GetTexID().
- 2021/03/12 (1.82) - upgraded ImDrawList::AddRect(), AddRectFilled(), PathRect() to use ImDrawFlags instead of ImDrawCornersFlags.
- ImDrawCornerFlags_TopLeft -> use ImDrawFlags_RoundCornersTopLeft
- ImDrawCornerFlags_BotRight -> use ImDrawFlags_RoundCornersBottomRight
- ImDrawCornerFlags_None -> use ImDrawFlags_RoundCornersNone etc.
flags now sanely defaults to 0 instead of 0x0F, consistent with all other flags in the API.
breaking: the default with rounding > 0.0f is now "round all corners" vs old implicit "round no corners":
- rounding == 0.0f + flags == 0 --> meant no rounding --> unchanged (common use)
- rounding > 0.0f + flags != 0 --> meant rounding --> unchanged (common use)
- rounding == 0.0f + flags != 0 --> meant no rounding --> unchanged (unlikely use)
- rounding > 0.0f + flags == 0 --> meant no rounding --> BREAKING (unlikely use): will now round all corners --> use ImDrawFlags_RoundCornersNone or rounding == 0.0f.
this ONLY matters for hard coded use of 0 + rounding > 0.0f. Use of named ImDrawFlags_RoundCornersNone (new) or ImDrawCornerFlags_None (old) are ok.
the old ImDrawCornersFlags used awkward default values of ~0 or 0xF (4 lower bits set) to signify "round all corners" and we sometimes encouraged using them as shortcuts.
legacy path still support use of hard coded ~0 or any value from 0x1 or 0xF. They will behave the same with legacy paths enabled (will assert otherwise).
- 2021/03/11 (1.82) - removed redirecting functions/enums names that were marked obsolete in 1.66 (September 2018):
- ImGui::SetScrollHere() -> use ImGui::SetScrollHereY()
- 2021/03/11 (1.82) - clarified that ImDrawList::PathArcTo(), ImDrawList::PathArcToFast() won't render with radius < 0.0f. Previously it sorts of accidentally worked but would generally lead to counter-clockwise paths and have an effect on anti-aliasing.
- 2021/03/10 (1.82) - upgraded ImDrawList::AddPolyline() and PathStroke() "bool closed" parameter to "ImDrawFlags flags". The matching ImDrawFlags_Closed value is guaranteed to always stay == 1 in the future.
- 2021/02/22 (1.82) - (*undone in 1.84*) win32+mingw: Re-enabled IME functions by default even under MinGW. In July 2016, issue #738 had me incorrectly disable those default functions for MinGW. MinGW users should: either link with -limm32, either set their imconfig file with '#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS'.
- 2021/02/17 (1.82) - renamed rarely used style.CircleSegmentMaxError (old default = 1.60f) to style.CircleTessellationMaxError (new default = 0.30f) as the meaning of the value changed.
- 2021/02/03 (1.81) - renamed ListBoxHeader(const char* label, ImVec2 size) to BeginListBox(). Kept inline redirection function (will obsolete).
- removed ListBoxHeader(const char* label, int items_count, int height_in_items = -1) in favor of specifying size. Kept inline redirection function (will obsolete).
- renamed ListBoxFooter() to EndListBox(). Kept inline redirection function (will obsolete).
- 2021/01/26 (1.81) - removed ImGuiFreeType::BuildFontAtlas(). Kept inline redirection function. Prefer using '#define IMGUI_ENABLE_FREETYPE', but there's a runtime selection path available too. The shared extra flags parameters (very rarely used) are now stored in ImFontAtlas::FontBuilderFlags.
- renamed ImFontConfig::RasterizerFlags (used by FreeType) to ImFontConfig::FontBuilderFlags.
- renamed ImGuiFreeType::XXX flags to ImGuiFreeTypeBuilderFlags_XXX for consistency with other API.
- 2020/10/12 (1.80) - removed redirecting functions/enums that were marked obsolete in 1.63 (August 2018):
- ImGui::IsItemDeactivatedAfterChange() -> use ImGui::IsItemDeactivatedAfterEdit().
- ImGuiCol_ModalWindowDarkening -> use ImGuiCol_ModalWindowDimBg
- ImGuiInputTextCallback -> use ImGuiTextEditCallback
- ImGuiInputTextCallbackData -> use ImGuiTextEditCallbackData
- 2020/12/21 (1.80) - renamed ImDrawList::AddBezierCurve() to AddBezierCubic(), and PathBezierCurveTo() to PathBezierCubicCurveTo(). Kept inline redirection function (will obsolete).
- 2020/12/04 (1.80) - added imgui_tables.cpp file! Manually constructed project files will need the new file added!
- 2020/11/18 (1.80) - renamed undocumented/internals ImGuiColumnsFlags_* to ImGuiOldColumnFlags_* in prevision of incoming Tables API.
- 2020/11/03 (1.80) - renamed io.ConfigWindowsMemoryCompactTimer to io.ConfigMemoryCompactTimer as the feature will apply to other data structures
- 2020/10/14 (1.80) - backends: moved all backends files (imgui_impl_XXXX.cpp, imgui_impl_XXXX.h) from examples/ to backends/.
- 2020/10/12 (1.80) - removed redirecting functions/enums that were marked obsolete in 1.60 (April 2018):
- io.RenderDrawListsFn pointer -> use ImGui::GetDrawData() value and call the render function of your backend
- ImGui::IsAnyWindowFocused() -> use ImGui::IsWindowFocused(ImGuiFocusedFlags_AnyWindow)
- ImGui::IsAnyWindowHovered() -> use ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow)
- ImGuiStyleVar_Count_ -> use ImGuiStyleVar_COUNT
- ImGuiMouseCursor_Count_ -> use ImGuiMouseCursor_COUNT
- removed redirecting functions names that were marked obsolete in 1.61 (May 2018):
- InputFloat (... int decimal_precision ...) -> use InputFloat (... const char* format ...) with format = "%.Xf" where X is your value for decimal_precision.
- same for InputFloat2()/InputFloat3()/InputFloat4() variants taking a `int decimal_precision` parameter.
- 2020/10/05 (1.79) - removed ImGuiListClipper: Renamed constructor parameters which created an ambiguous alternative to using the ImGuiListClipper::Begin() function, with misleading edge cases (note: imgui_memory_editor <0.40 from imgui_club/ used this old clipper API. Update your copy if needed).
- 2020/09/25 (1.79) - renamed ImGuiSliderFlags_ClampOnInput to ImGuiSliderFlags_AlwaysClamp. Kept redirection enum (will obsolete sooner because previous name was added recently).
- 2020/09/25 (1.79) - renamed style.TabMinWidthForUnselectedCloseButton to style.TabMinWidthForCloseButton.
- 2020/09/21 (1.79) - renamed OpenPopupContextItem() back to OpenPopupOnItemClick(), reverting the change from 1.77. For varieties of reason this is more self-explanatory.
- 2020/09/21 (1.79) - removed return value from OpenPopupOnItemClick() - returned true on mouse release on an item - because it is inconsistent with other popup APIs and makes others misleading. It's also and unnecessary: you can use IsWindowAppearing() after BeginPopup() for a similar result.
- 2020/09/17 (1.79) - removed ImFont::DisplayOffset in favor of ImFontConfig::GlyphOffset. DisplayOffset was applied after scaling and not very meaningful/useful outside of being needed by the default ProggyClean font. If you scaled this value after calling AddFontDefault(), this is now done automatically. It was also getting in the way of better font scaling, so let's get rid of it now!
- 2020/08/17 (1.78) - obsoleted use of the trailing 'float power=1.0f' parameter for DragFloat(), DragFloat2(), DragFloat3(), DragFloat4(), DragFloatRange2(), DragScalar(), DragScalarN(), SliderFloat(), SliderFloat2(), SliderFloat3(), SliderFloat4(), SliderScalar(), SliderScalarN(), VSliderFloat() and VSliderScalar().
replaced the 'float power=1.0f' argument with integer-based flags defaulting to 0 (as with all our flags).
worked out a backward-compatibility scheme so hopefully most C++ codebase should not be affected. in short, when calling those functions:
- if you omitted the 'power' parameter (likely!), you are not affected.
- if you set the 'power' parameter to 1.0f (same as previous default value): 1/ your compiler may warn on float>int conversion, 2/ everything else will work. 3/ you can replace the 1.0f value with 0 to fix the warning, and be technically correct.
- if you set the 'power' parameter to >1.0f (to enable non-linear editing): 1/ your compiler may warn on float>int conversion, 2/ code will assert at runtime, 3/ in case asserts are disabled, the code will not crash and enable the _Logarithmic flag. 4/ you can replace the >1.0f value with ImGuiSliderFlags_Logarithmic to fix the warning/assert and get a _similar_ effect as previous uses of power >1.0f.
see https://github.com/ocornut/imgui/issues/3361 for all details.
kept inline redirection functions (will obsolete) apart for: DragFloatRange2(), VSliderFloat(), VSliderScalar(). For those three the 'float power=1.0f' version was removed directly as they were most unlikely ever used.
for shared code, you can version check at compile-time with `#if IMGUI_VERSION_NUM >= 17704`.
- obsoleted use of v_min > v_max in DragInt, DragFloat, DragScalar to lock edits (introduced in 1.73, was not demoed nor documented very), will be replaced by a more generic ReadOnly feature. You may use the ImGuiSliderFlags_ReadOnly internal flag in the meantime.
- 2020/06/23 (1.77) - removed BeginPopupContextWindow(const char*, int mouse_button, bool also_over_items) in favor of BeginPopupContextWindow(const char*, ImGuiPopupFlags flags) with ImGuiPopupFlags_NoOverItems.
- 2020/06/15 (1.77) - renamed OpenPopupOnItemClick() to OpenPopupContextItem(). Kept inline redirection function (will obsolete). [NOTE: THIS WAS REVERTED IN 1.79]
- 2020/06/15 (1.77) - removed CalcItemRectClosestPoint() entry point which was made obsolete and asserting in December 2017.
- 2020/04/23 (1.77) - removed unnecessary ID (first arg) of ImFontAtlas::AddCustomRectRegular().
- 2020/01/22 (1.75) - ImDrawList::AddCircle()/AddCircleFilled() functions don't accept negative radius any more.
- 2019/12/17 (1.75) - [undid this change in 1.76] made Columns() limited to 64 columns by asserting above that limit. While the current code technically supports it, future code may not so we're putting the restriction ahead.
- 2019/12/13 (1.75) - [imgui_internal.h] changed ImRect() default constructor initializes all fields to 0.0f instead of (FLT_MAX,FLT_MAX,-FLT_MAX,-FLT_MAX). If you used ImRect::Add() to create bounding boxes by adding multiple points into it, you may need to fix your initial value.
- 2019/12/08 (1.75) - removed redirecting functions/enums that were marked obsolete in 1.53 (December 2017):
- ShowTestWindow() -> use ShowDemoWindow()
- IsRootWindowFocused() -> use IsWindowFocused(ImGuiFocusedFlags_RootWindow)
- IsRootWindowOrAnyChildFocused() -> use IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows)
- SetNextWindowContentWidth(w) -> use SetNextWindowContentSize(ImVec2(w, 0.0f)
- GetItemsLineHeightWithSpacing() -> use GetFrameHeightWithSpacing()
- ImGuiCol_ChildWindowBg -> use ImGuiCol_ChildBg
- ImGuiStyleVar_ChildWindowRounding -> use ImGuiStyleVar_ChildRounding
- ImGuiTreeNodeFlags_AllowOverlapMode -> use ImGuiTreeNodeFlags_AllowItemOverlap
- IMGUI_DISABLE_TEST_WINDOWS -> use IMGUI_DISABLE_DEMO_WINDOWS
- 2019/12/08 (1.75) - obsoleted calling ImDrawList::PrimReserve() with a negative count (which was vaguely documented and rarely if ever used). Instead, we added an explicit PrimUnreserve() API.
- 2019/12/06 (1.75) - removed implicit default parameter to IsMouseDragging(int button = 0) to be consistent with other mouse functions (none of the other functions have it).
- 2019/11/21 (1.74) - ImFontAtlas::AddCustomRectRegular() now requires an ID larger than 0x110000 (instead of 0x10000) to conform with supporting Unicode planes 1-16 in a future update. ID below 0x110000 will now assert.
- 2019/11/19 (1.74) - renamed IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS to IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS for consistency.
- 2019/11/19 (1.74) - renamed IMGUI_DISABLE_MATH_FUNCTIONS to IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS for consistency.
- 2019/10/22 (1.74) - removed redirecting functions/enums that were marked obsolete in 1.52 (October 2017):
- Begin() [old 5 args version] -> use Begin() [3 args], use SetNextWindowSize() SetNextWindowBgAlpha() if needed
- IsRootWindowOrAnyChildHovered() -> use IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows)
- AlignFirstTextHeightToWidgets() -> use AlignTextToFramePadding()
- SetNextWindowPosCenter() -> use SetNextWindowPos() with a pivot of (0.5f, 0.5f)
- ImFont::Glyph -> use ImFontGlyph
- 2019/10/14 (1.74) - inputs: Fixed a miscalculation in the keyboard/mouse "typematic" repeat delay/rate calculation, used by keys and e.g. repeating mouse buttons as well as the GetKeyPressedAmount() function.
if you were using a non-default value for io.KeyRepeatRate (previous default was 0.250), you can add +io.KeyRepeatDelay to it to compensate for the fix.
The function was triggering on: 0.0 and (delay+rate*N) where (N>=1). Fixed formula responds to (N>=0). Effectively it made io.KeyRepeatRate behave like it was set to (io.KeyRepeatRate + io.KeyRepeatDelay).
If you never altered io.KeyRepeatRate nor used GetKeyPressedAmount() this won't affect you.
- 2019/07/15 (1.72) - removed TreeAdvanceToLabelPos() which is rarely used and only does SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()). Kept redirection function (will obsolete).
- 2019/07/12 (1.72) - renamed ImFontAtlas::CustomRect to ImFontAtlasCustomRect. Kept redirection typedef (will obsolete).
- 2019/06/14 (1.72) - removed redirecting functions/enums names that were marked obsolete in 1.51 (June 2017): ImGuiCol_Column*, ImGuiSetCond_*, IsItemHoveredRect(), IsPosHoveringAnyWindow(), IsMouseHoveringAnyWindow(), IsMouseHoveringWindow(), IMGUI_ONCE_UPON_A_FRAME. Grep this log for details and new names, or see how they were implemented until 1.71.
- 2019/06/07 (1.71) - rendering of child window outer decorations (bg color, border, scrollbars) is now performed as part of the parent window. If you have
overlapping child windows in a same parent, and relied on their relative z-order to be mapped to their submission order, this will affect your rendering.
This optimization is disabled if the parent window has no visual output, because it appears to be the most common situation leading to the creation of overlapping child windows.
Please reach out if you are affected.
- 2019/05/13 (1.71) - renamed SetNextTreeNodeOpen() to SetNextItemOpen(). Kept inline redirection function (will obsolete).
- 2019/05/11 (1.71) - changed io.AddInputCharacter(unsigned short c) signature to io.AddInputCharacter(unsigned int c).
- 2019/04/29 (1.70) - improved ImDrawList thick strokes (>1.0f) preserving correct thickness up to 90 degrees angles (e.g. rectangles). If you have custom rendering using thick lines, they will appear thicker now.
- 2019/04/29 (1.70) - removed GetContentRegionAvailWidth(), use GetContentRegionAvail().x instead. Kept inline redirection function (will obsolete).
- 2019/03/04 (1.69) - renamed GetOverlayDrawList() to GetForegroundDrawList(). Kept redirection function (will obsolete).
- 2019/02/26 (1.69) - renamed ImGuiColorEditFlags_RGB/ImGuiColorEditFlags_HSV/ImGuiColorEditFlags_HEX to ImGuiColorEditFlags_DisplayRGB/ImGuiColorEditFlags_DisplayHSV/ImGuiColorEditFlags_DisplayHex. Kept redirection enums (will obsolete).
- 2019/02/14 (1.68) - made it illegal/assert when io.DisplayTime == 0.0f (with an exception for the first frame). If for some reason your time step calculation gives you a zero value, replace it with an arbitrarily small value!
- 2019/02/01 (1.68) - removed io.DisplayVisibleMin/DisplayVisibleMax (which were marked obsolete and removed from viewport/docking branch already).
- 2019/01/06 (1.67) - renamed io.InputCharacters[], marked internal as was always intended. Please don't access directly, and use AddInputCharacter() instead!
- 2019/01/06 (1.67) - renamed ImFontAtlas::GlyphRangesBuilder to ImFontGlyphRangesBuilder. Kept redirection typedef (will obsolete).
- 2018/12/20 (1.67) - made it illegal to call Begin("") with an empty string. This somehow half-worked before but had various undesirable side-effects.
- 2018/12/10 (1.67) - renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges as we are doing a large pass on configuration flags.
- 2018/10/12 (1.66) - renamed misc/stl/imgui_stl.* to misc/cpp/imgui_stdlib.* in prevision for other C++ helper files.
- 2018/09/28 (1.66) - renamed SetScrollHere() to SetScrollHereY(). Kept redirection function (will obsolete).
- 2018/09/06 (1.65) - renamed stb_truetype.h to imstb_truetype.h, stb_textedit.h to imstb_textedit.h, and stb_rect_pack.h to imstb_rectpack.h.
If you were conveniently using the imgui copy of those STB headers in your project you will have to update your include paths.
- 2018/09/05 (1.65) - renamed io.OptCursorBlink/io.ConfigCursorBlink to io.ConfigInputTextCursorBlink. (#1427)
- 2018/08/31 (1.64) - added imgui_widgets.cpp file, extracted and moved widgets code out of imgui.cpp into imgui_widgets.cpp. Re-ordered some of the code remaining in imgui.cpp.
NONE OF THE FUNCTIONS HAVE CHANGED. THE CODE IS SEMANTICALLY 100% IDENTICAL, BUT _EVERY_ FUNCTION HAS BEEN MOVED.
Because of this, any local modifications to imgui.cpp will likely conflict when you update. Read docs/CHANGELOG.txt for suggestions.
- 2018/08/22 (1.63) - renamed IsItemDeactivatedAfterChange() to IsItemDeactivatedAfterEdit() for consistency with new IsItemEdited() API. Kept redirection function (will obsolete soonish as IsItemDeactivatedAfterChange() is very recent).
- 2018/08/21 (1.63) - renamed ImGuiTextEditCallback to ImGuiInputTextCallback, ImGuiTextEditCallbackData to ImGuiInputTextCallbackData for consistency. Kept redirection types (will obsolete).
- 2018/08/21 (1.63) - removed ImGuiInputTextCallbackData::ReadOnly since it is a duplication of (ImGuiInputTextCallbackData::Flags & ImGuiInputTextFlags_ReadOnly).
- 2018/08/01 (1.63) - removed per-window ImGuiWindowFlags_ResizeFromAnySide beta flag in favor of a global io.ConfigResizeWindowsFromEdges [update 1.67 renamed to ConfigWindowsResizeFromEdges] to enable the feature.
- 2018/08/01 (1.63) - renamed io.OptCursorBlink to io.ConfigCursorBlink [-> io.ConfigInputTextCursorBlink in 1.65], io.OptMacOSXBehaviors to ConfigMacOSXBehaviors for consistency.
- 2018/07/22 (1.63) - changed ImGui::GetTime() return value from float to double to avoid accumulating floating point imprecisions over time.
- 2018/07/08 (1.63) - style: renamed ImGuiCol_ModalWindowDarkening to ImGuiCol_ModalWindowDimBg for consistency with other features. Kept redirection enum (will obsolete).
- 2018/06/08 (1.62) - examples: the imgui_impl_XXX files have been split to separate platform (Win32, GLFW, SDL2, etc.) from renderer (DX11, OpenGL, Vulkan, etc.).
old backends will still work as is, however prefer using the separated backends as they will be updated to support multi-viewports.
when adopting new backends follow the main.cpp code of your preferred examples/ folder to know which functions to call.
in particular, note that old backends called ImGui::NewFrame() at the end of their ImGui_ImplXXXX_NewFrame() function.
- 2018/06/06 (1.62) - renamed GetGlyphRangesChinese() to GetGlyphRangesChineseFull() to distinguish other variants and discourage using the full set.
- 2018/06/06 (1.62) - TreeNodeEx()/TreeNodeBehavior(): the ImGuiTreeNodeFlags_CollapsingHeader helper now include the ImGuiTreeNodeFlags_NoTreePushOnOpen flag. See Changelog for details.
- 2018/05/03 (1.61) - DragInt(): the default compile-time format string has been changed from "%.0f" to "%d", as we are not using integers internally any more.
If you used DragInt() with custom format strings, make sure you change them to use %d or an integer-compatible format.
To honor backward-compatibility, the DragInt() code will currently parse and modify format strings to replace %*f with %d, giving time to users to upgrade their code.
If you have IMGUI_DISABLE_OBSOLETE_FUNCTIONS enabled, the code will instead assert! You may run a reg-exp search on your codebase for e.g. "DragInt.*%f" to help you find them.
- 2018/04/28 (1.61) - obsoleted InputFloat() functions taking an optional "int decimal_precision" in favor of an equivalent and more flexible "const char* format",
consistent with other functions. Kept redirection functions (will obsolete).
- 2018/04/09 (1.61) - IM_DELETE() helper function added in 1.60 doesn't clear the input _pointer_ reference, more consistent with expectation and allows passing r-value.
- 2018/03/20 (1.60) - renamed io.WantMoveMouse to io.WantSetMousePos for consistency and ease of understanding (was added in 1.52, _not_ used by core and only honored by some backend ahead of merging the Nav branch).
- 2018/03/12 (1.60) - removed ImGuiCol_CloseButton, ImGuiCol_CloseButtonActive, ImGuiCol_CloseButtonHovered as the closing cross uses regular button colors now.
- 2018/03/08 (1.60) - changed ImFont::DisplayOffset.y to default to 0 instead of +1. Fixed rounding of Ascent/Descent to match TrueType renderer. If you were adding or subtracting to ImFont::DisplayOffset check if your fonts are correctly aligned vertically.
- 2018/03/03 (1.60) - renamed ImGuiStyleVar_Count_ to ImGuiStyleVar_COUNT and ImGuiMouseCursor_Count_ to ImGuiMouseCursor_COUNT for consistency with other public enums.
- 2018/02/18 (1.60) - BeginDragDropSource(): temporarily removed the optional mouse_button=0 parameter because it is not really usable in many situations at the moment.
- 2018/02/16 (1.60) - obsoleted the io.RenderDrawListsFn callback, you can call your graphics engine render function after ImGui::Render(). Use ImGui::GetDrawData() to retrieve the ImDrawData* to display.
- 2018/02/07 (1.60) - reorganized context handling to be more explicit,
- YOU NOW NEED TO CALL ImGui::CreateContext() AT THE BEGINNING OF YOUR APP, AND CALL ImGui::DestroyContext() AT THE END.
- removed Shutdown() function, as DestroyContext() serve this purpose.
- you may pass a ImFontAtlas* pointer to CreateContext() to share a font atlas between contexts. Otherwise CreateContext() will create its own font atlas instance.
- removed allocator parameters from CreateContext(), they are now setup with SetAllocatorFunctions(), and shared by all contexts.
- removed the default global context and font atlas instance, which were confusing for users of DLL reloading and users of multiple contexts.
- 2018/01/31 (1.60) - moved sample TTF files from extra_fonts/ to misc/fonts/. If you loaded files directly from the imgui repo you may need to update your paths.
- 2018/01/11 (1.60) - obsoleted IsAnyWindowHovered() in favor of IsWindowHovered(ImGuiHoveredFlags_AnyWindow). Kept redirection function (will obsolete).
- 2018/01/11 (1.60) - obsoleted IsAnyWindowFocused() in favor of IsWindowFocused(ImGuiFocusedFlags_AnyWindow). Kept redirection function (will obsolete).
- 2018/01/03 (1.60) - renamed ImGuiSizeConstraintCallback to ImGuiSizeCallback, ImGuiSizeConstraintCallbackData to ImGuiSizeCallbackData.
- 2017/12/29 (1.60) - removed CalcItemRectClosestPoint() which was weird and not really used by anyone except demo code. If you need it it's easy to replicate on your side.
- 2017/12/24 (1.53) - renamed the emblematic ShowTestWindow() function to ShowDemoWindow(). Kept redirection function (will obsolete).
- 2017/12/21 (1.53) - ImDrawList: renamed style.AntiAliasedShapes to style.AntiAliasedFill for consistency and as a way to explicitly break code that manipulate those flag at runtime. You can now manipulate ImDrawList::Flags
- 2017/12/21 (1.53) - ImDrawList: removed 'bool anti_aliased = true' final parameter of ImDrawList::AddPolyline() and ImDrawList::AddConvexPolyFilled(). Prefer manipulating ImDrawList::Flags if you need to toggle them during the frame.
- 2017/12/14 (1.53) - using the ImGuiWindowFlags_NoScrollWithMouse flag on a child window forwards the mouse wheel event to the parent window, unless either ImGuiWindowFlags_NoInputs or ImGuiWindowFlags_NoScrollbar are also set.
- 2017/12/13 (1.53) - renamed GetItemsLineHeightWithSpacing() to GetFrameHeightWithSpacing(). Kept redirection function (will obsolete).
- 2017/12/13 (1.53) - obsoleted IsRootWindowFocused() in favor of using IsWindowFocused(ImGuiFocusedFlags_RootWindow). Kept redirection function (will obsolete).
- obsoleted IsRootWindowOrAnyChildFocused() in favor of using IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows). Kept redirection function (will obsolete).
- 2017/12/12 (1.53) - renamed ImGuiTreeNodeFlags_AllowOverlapMode to ImGuiTreeNodeFlags_AllowItemOverlap. Kept redirection enum (will obsolete).
- 2017/12/10 (1.53) - removed SetNextWindowContentWidth(), prefer using SetNextWindowContentSize(). Kept redirection function (will obsolete).
- 2017/11/27 (1.53) - renamed ImGuiTextBuffer::append() helper to appendf(), appendv() to appendfv(). If you copied the 'Log' demo in your code, it uses appendv() so that needs to be renamed.
- 2017/11/18 (1.53) - Style, Begin: removed ImGuiWindowFlags_ShowBorders window flag. Borders are now fully set up in the ImGuiStyle structure (see e.g. style.FrameBorderSize, style.WindowBorderSize). Use ImGui::ShowStyleEditor() to look them up.
Please note that the style system will keep evolving (hopefully stabilizing in Q1 2018), and so custom styles will probably subtly break over time. It is recommended you use the StyleColorsClassic(), StyleColorsDark(), StyleColorsLight() functions.
- 2017/11/18 (1.53) - Style: removed ImGuiCol_ComboBg in favor of combo boxes using ImGuiCol_PopupBg for consistency.
- 2017/11/18 (1.53) - Style: renamed ImGuiCol_ChildWindowBg to ImGuiCol_ChildBg.
- 2017/11/18 (1.53) - Style: renamed style.ChildWindowRounding to style.ChildRounding, ImGuiStyleVar_ChildWindowRounding to ImGuiStyleVar_ChildRounding.
- 2017/11/02 (1.53) - obsoleted IsRootWindowOrAnyChildHovered() in favor of using IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows);
- 2017/10/24 (1.52) - renamed IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCS to IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS for consistency.
- 2017/10/20 (1.52) - changed IsWindowHovered() default parameters behavior to return false if an item is active in another window (e.g. click-dragging item from another window to this window). You can use the newly introduced IsWindowHovered() flags to requests this specific behavior if you need it.
- 2017/10/20 (1.52) - marked IsItemHoveredRect()/IsMouseHoveringWindow() as obsolete, in favor of using the newly introduced flags for IsItemHovered() and IsWindowHovered(). See https://github.com/ocornut/imgui/issues/1382 for details.
removed the IsItemRectHovered()/IsWindowRectHovered() names introduced in 1.51 since they were merely more consistent names for the two functions we are now obsoleting.
IsItemHoveredRect() --> IsItemHovered(ImGuiHoveredFlags_RectOnly)
IsMouseHoveringAnyWindow() --> IsWindowHovered(ImGuiHoveredFlags_AnyWindow)
IsMouseHoveringWindow() --> IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem) [weird, old behavior]
- 2017/10/17 (1.52) - marked the old 5-parameters version of Begin() as obsolete (still available). Use SetNextWindowSize()+Begin() instead!
- 2017/10/11 (1.52) - renamed AlignFirstTextHeightToWidgets() to AlignTextToFramePadding(). Kept inline redirection function (will obsolete).
- 2017/09/26 (1.52) - renamed ImFont::Glyph to ImFontGlyph. Kept redirection typedef (will obsolete).
- 2017/09/25 (1.52) - removed SetNextWindowPosCenter() because SetNextWindowPos() now has the optional pivot information to do the same and more. Kept redirection function (will obsolete).
- 2017/08/25 (1.52) - io.MousePos needs to be set to ImVec2(-FLT_MAX,-FLT_MAX) when mouse is unavailable/missing. Previously ImVec2(-1,-1) was enough but we now accept negative mouse coordinates. In your backend if you need to support unavailable mouse, make sure to replace "io.MousePos = ImVec2(-1,-1)" with "io.MousePos = ImVec2(-FLT_MAX,-FLT_MAX)".
- 2017/08/22 (1.51) - renamed IsItemHoveredRect() to IsItemRectHovered(). Kept inline redirection function (will obsolete). -> (1.52) use IsItemHovered(ImGuiHoveredFlags_RectOnly)!
- renamed IsMouseHoveringAnyWindow() to IsAnyWindowHovered() for consistency. Kept inline redirection function (will obsolete).
- renamed IsMouseHoveringWindow() to IsWindowRectHovered() for consistency. Kept inline redirection function (will obsolete).
- 2017/08/20 (1.51) - renamed GetStyleColName() to GetStyleColorName() for consistency.
- 2017/08/20 (1.51) - added PushStyleColor(ImGuiCol idx, ImU32 col) overload, which _might_ cause an "ambiguous call" compilation error if you are using ImColor() with implicit cast. Cast to ImU32 or ImVec4 explicily to fix.
- 2017/08/15 (1.51) - marked the weird IMGUI_ONCE_UPON_A_FRAME helper macro as obsolete. prefer using the more explicit ImGuiOnceUponAFrame type.
- 2017/08/15 (1.51) - changed parameter order for BeginPopupContextWindow() from (const char*,int buttons,bool also_over_items) to (const char*,int buttons,bool also_over_items). Note that most calls relied on default parameters completely.
- 2017/08/13 (1.51) - renamed ImGuiCol_Column to ImGuiCol_Separator, ImGuiCol_ColumnHovered to ImGuiCol_SeparatorHovered, ImGuiCol_ColumnActive to ImGuiCol_SeparatorActive. Kept redirection enums (will obsolete).
- 2017/08/11 (1.51) - renamed ImGuiSetCond_Always to ImGuiCond_Always, ImGuiSetCond_Once to ImGuiCond_Once, ImGuiSetCond_FirstUseEver to ImGuiCond_FirstUseEver, ImGuiSetCond_Appearing to ImGuiCond_Appearing. Kept redirection enums (will obsolete).
- 2017/08/09 (1.51) - removed ValueColor() helpers, they are equivalent to calling Text(label) + SameLine() + ColorButton().
- 2017/08/08 (1.51) - removed ColorEditMode() and ImGuiColorEditMode in favor of ImGuiColorEditFlags and parameters to the various Color*() functions. The SetColorEditOptions() allows to initialize default but the user can still change them with right-click context menu.
- changed prototype of 'ColorEdit4(const char* label, float col[4], bool show_alpha = true)' to 'ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags = 0)', where passing flags = 0x01 is a safe no-op (hello dodgy backward compatibility!). - check and run the demo window, under "Color/Picker Widgets", to understand the various new options.
- changed prototype of rarely used 'ColorButton(ImVec4 col, bool small_height = false, bool outline_border = true)' to 'ColorButton(const char* desc_id, ImVec4 col, ImGuiColorEditFlags flags = 0, ImVec2 size = ImVec2(0, 0))'
- 2017/07/20 (1.51) - removed IsPosHoveringAnyWindow(ImVec2), which was partly broken and misleading. ASSERT + redirect user to io.WantCaptureMouse
- 2017/05/26 (1.50) - removed ImFontConfig::MergeGlyphCenterV in favor of a more multipurpose ImFontConfig::GlyphOffset.
- 2017/05/01 (1.50) - renamed ImDrawList::PathFill() (rarely used directly) to ImDrawList::PathFillConvex() for clarity.
- 2016/11/06 (1.50) - BeginChild(const char*) now applies the stack id to the provided label, consistently with other functions as it should always have been. It shouldn't affect you unless (extremely unlikely) you were appending multiple times to a same child from different locations of the stack id. If that's the case, generate an id with GetID() and use it instead of passing string to BeginChild().
- 2016/10/15 (1.50) - avoid 'void* user_data' parameter to io.SetClipboardTextFn/io.GetClipboardTextFn pointers. We pass io.ClipboardUserData to it.
- 2016/09/25 (1.50) - style.WindowTitleAlign is now a ImVec2 (ImGuiAlign enum was removed). set to (0.5f,0.5f) for horizontal+vertical centering, (0.0f,0.0f) for upper-left, etc.
- 2016/07/30 (1.50) - SameLine(x) with x>0.0f is now relative to left of column/group if any, and not always to left of window. This was sort of always the intent and hopefully, breakage should be minimal.
- 2016/05/12 (1.49) - title bar (using ImGuiCol_TitleBg/ImGuiCol_TitleBgActive colors) isn't rendered over a window background (ImGuiCol_WindowBg color) anymore.
If your TitleBg/TitleBgActive alpha was 1.0f or you are using the default theme it will not affect you, otherwise if <1.0f you need to tweak your custom theme to readjust for the fact that we don't draw a WindowBg background behind the title bar.
This helper function will convert an old TitleBg/TitleBgActive color into a new one with the same visual output, given the OLD color and the OLD WindowBg color:
ImVec4 ConvertTitleBgCol(const ImVec4& win_bg_col, const ImVec4& title_bg_col) { float new_a = 1.0f - ((1.0f - win_bg_col.w) * (1.0f - title_bg_col.w)), k = title_bg_col.w / new_a; return ImVec4((win_bg_col.x * win_bg_col.w + title_bg_col.x) * k, (win_bg_col.y * win_bg_col.w + title_bg_col.y) * k, (win_bg_col.z * win_bg_col.w + title_bg_col.z) * k, new_a); }
If this is confusing, pick the RGB value from title bar from an old screenshot and apply this as TitleBg/TitleBgActive. Or you may just create TitleBgActive from a tweaked TitleBg color.
- 2016/05/07 (1.49) - removed confusing set of GetInternalState(), GetInternalStateSize(), SetInternalState() functions. Now using CreateContext(), DestroyContext(), GetCurrentContext(), SetCurrentContext().
- 2016/05/02 (1.49) - renamed SetNextTreeNodeOpened() to SetNextTreeNodeOpen(), no redirection.
- 2016/05/01 (1.49) - obsoleted old signature of CollapsingHeader(const char* label, const char* str_id = NULL, bool display_frame = true, bool default_open = false) as extra parameters were badly designed and rarely used. You can replace the "default_open = true" flag in new API with CollapsingHeader(label, ImGuiTreeNodeFlags_DefaultOpen).
- 2016/04/26 (1.49) - changed ImDrawList::PushClipRect(ImVec4 rect) to ImDrawList::PushClipRect(Imvec2 min,ImVec2 max,bool intersect_with_current_clip_rect=false). Note that higher-level ImGui::PushClipRect() is preferable because it will clip at logic/widget level, whereas ImDrawList::PushClipRect() only affect your renderer.
- 2016/04/03 (1.48) - removed style.WindowFillAlphaDefault setting which was redundant. Bake default BG alpha inside style.Colors[ImGuiCol_WindowBg] and all other Bg color values. (ref GitHub issue #337).
- 2016/04/03 (1.48) - renamed ImGuiCol_TooltipBg to ImGuiCol_PopupBg, used by popups/menus and tooltips. popups/menus were previously using ImGuiCol_WindowBg. (ref github issue #337)
- 2016/03/21 (1.48) - renamed GetWindowFont() to GetFont(), GetWindowFontSize() to GetFontSize(). Kept inline redirection function (will obsolete).
- 2016/03/02 (1.48) - InputText() completion/history/always callbacks: if you modify the text buffer manually (without using DeleteChars()/InsertChars() helper) you need to maintain the BufTextLen field. added an assert.
- 2016/01/23 (1.48) - fixed not honoring exact width passed to PushItemWidth(), previously it would add extra FramePadding.x*2 over that width. if you had manual pixel-perfect alignment in place it might affect you.
- 2015/12/27 (1.48) - fixed ImDrawList::AddRect() which used to render a rectangle 1 px too large on each axis.
- 2015/12/04 (1.47) - renamed Color() helpers to ValueColor() - dangerously named, rarely used and probably to be made obsolete.
- 2015/08/29 (1.45) - with the addition of horizontal scrollbar we made various fixes to inconsistencies with dealing with cursor position.
GetCursorPos()/SetCursorPos() functions now include the scrolled amount. It shouldn't affect the majority of users, but take note that SetCursorPosX(100.0f) puts you at +100 from the starting x position which may include scrolling, not at +100 from the window left side.
GetContentRegionMax()/GetWindowContentRegionMin()/GetWindowContentRegionMax() functions allow include the scrolled amount. Typically those were used in cases where no scrolling would happen so it may not be a problem, but watch out!
- 2015/08/29 (1.45) - renamed style.ScrollbarWidth to style.ScrollbarSize
- 2015/08/05 (1.44) - split imgui.cpp into extra files: imgui_demo.cpp imgui_draw.cpp imgui_internal.h that you need to add to your project.
- 2015/07/18 (1.44) - fixed angles in ImDrawList::PathArcTo(), PathArcToFast() (introduced in 1.43) being off by an extra PI for no justifiable reason
- 2015/07/14 (1.43) - add new ImFontAtlas::AddFont() API. For the old AddFont***, moved the 'font_no' parameter of ImFontAtlas::AddFont** functions to the ImFontConfig structure.
you need to render your textured triangles with bilinear filtering to benefit from sub-pixel positioning of text.
- 2015/07/08 (1.43) - switched rendering data to use indexed rendering. this is saving a fair amount of CPU/GPU and enables us to get anti-aliasing for a marginal cost.
this necessary change will break your rendering function! the fix should be very easy. sorry for that :(
- if you are using a vanilla copy of one of the imgui_impl_XXX.cpp provided in the example, you just need to update your copy and you can ignore the rest.
- the signature of the io.RenderDrawListsFn handler has changed!
old: ImGui_XXXX_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_count)
new: ImGui_XXXX_RenderDrawLists(ImDrawData* draw_data).
parameters: 'cmd_lists' becomes 'draw_data->CmdLists', 'cmd_lists_count' becomes 'draw_data->CmdListsCount'
ImDrawList: 'commands' becomes 'CmdBuffer', 'vtx_buffer' becomes 'VtxBuffer', 'IdxBuffer' is new.
ImDrawCmd: 'vtx_count' becomes 'ElemCount', 'clip_rect' becomes 'ClipRect', 'user_callback' becomes 'UserCallback', 'texture_id' becomes 'TextureId'.
- each ImDrawList now contains both a vertex buffer and an index buffer. For each command, render ElemCount/3 triangles using indices from the index buffer.
- if you REALLY cannot render indexed primitives, you can call the draw_data->DeIndexAllBuffers() method to de-index the buffers. This is slow and a waste of CPU/GPU. Prefer using indexed rendering!
- refer to code in the examples/ folder or ask on the GitHub if you are unsure of how to upgrade. please upgrade!
- 2015/07/10 (1.43) - changed SameLine() parameters from int to float.
- 2015/07/02 (1.42) - renamed SetScrollPosHere() to SetScrollFromCursorPos(). Kept inline redirection function (will obsolete).
- 2015/07/02 (1.42) - renamed GetScrollPosY() to GetScrollY(). Necessary to reduce confusion along with other scrolling functions, because positions (e.g. cursor position) are not equivalent to scrolling amount.
- 2015/06/14 (1.41) - changed ImageButton() default bg_col parameter from (0,0,0,1) (black) to (0,0,0,0) (transparent) - makes a difference when texture have transparence
- 2015/06/14 (1.41) - changed Selectable() API from (label, selected, size) to (label, selected, flags, size). Size override should have been rarely used. Sorry!
- 2015/05/31 (1.40) - renamed GetWindowCollapsed() to IsWindowCollapsed() for consistency. Kept inline redirection function (will obsolete).
- 2015/05/31 (1.40) - renamed IsRectClipped() to IsRectVisible() for consistency. Note that return value is opposite! Kept inline redirection function (will obsolete).
- 2015/05/27 (1.40) - removed the third 'repeat_if_held' parameter from Button() - sorry! it was rarely used and inconsistent. Use PushButtonRepeat(true) / PopButtonRepeat() to enable repeat on desired buttons.
- 2015/05/11 (1.40) - changed BeginPopup() API, takes a string identifier instead of a bool. ImGui needs to manage the open/closed state of popups. Call OpenPopup() to actually set the "open" state of a popup. BeginPopup() returns true if the popup is opened.
- 2015/05/03 (1.40) - removed style.AutoFitPadding, using style.WindowPadding makes more sense (the default values were already the same).
- 2015/04/13 (1.38) - renamed IsClipped() to IsRectClipped(). Kept inline redirection function until 1.50.
- 2015/04/09 (1.38) - renamed ImDrawList::AddArc() to ImDrawList::AddArcFast() for compatibility with future API
- 2015/04/03 (1.38) - removed ImGuiCol_CheckHovered, ImGuiCol_CheckActive, replaced with the more general ImGuiCol_FrameBgHovered, ImGuiCol_FrameBgActive.
- 2014/04/03 (1.38) - removed support for passing -FLT_MAX..+FLT_MAX as the range for a SliderFloat(). Use DragFloat() or Inputfloat() instead.
- 2015/03/17 (1.36) - renamed GetItemBoxMin()/GetItemBoxMax()/IsMouseHoveringBox() to GetItemRectMin()/GetItemRectMax()/IsMouseHoveringRect(). Kept inline redirection function until 1.50.
- 2015/03/15 (1.36) - renamed style.TreeNodeSpacing to style.IndentSpacing, ImGuiStyleVar_TreeNodeSpacing to ImGuiStyleVar_IndentSpacing
- 2015/03/13 (1.36) - renamed GetWindowIsFocused() to IsWindowFocused(). Kept inline redirection function until 1.50.
- 2015/03/08 (1.35) - renamed style.ScrollBarWidth to style.ScrollbarWidth (casing)
- 2015/02/27 (1.34) - renamed OpenNextNode(bool) to SetNextTreeNodeOpened(bool, ImGuiSetCond). Kept inline redirection function until 1.50.
- 2015/02/27 (1.34) - renamed ImGuiSetCondition_*** to ImGuiSetCond_***, and _FirstUseThisSession becomes _Once.
- 2015/02/11 (1.32) - changed text input callback ImGuiTextEditCallback return type from void-->int. reserved for future use, return 0 for now.
- 2015/02/10 (1.32) - renamed GetItemWidth() to CalcItemWidth() to clarify its evolving behavior
- 2015/02/08 (1.31) - renamed GetTextLineSpacing() to GetTextLineHeightWithSpacing()
- 2015/02/01 (1.31) - removed IO.MemReallocFn (unused)
- 2015/01/19 (1.30) - renamed ImGuiStorage::GetIntPtr()/GetFloatPtr() to GetIntRef()/GetIntRef() because Ptr was conflicting with actual pointer storage functions.
- 2015/01/11 (1.30) - big font/image API change! now loads TTF file. allow for multiple fonts. no need for a PNG loader.
- 2015/01/11 (1.30) - removed GetDefaultFontData(). uses io.Fonts->GetTextureData*() API to retrieve uncompressed pixels.
- old: const void* png_data; unsigned int png_size; ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size); [..Upload texture to GPU..];
- new: unsigned char* pixels; int width, height; io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); [..Upload texture to GPU..]; io.Fonts->SetTexID(YourTexIdentifier);
you now have more flexibility to load multiple TTF fonts and manage the texture buffer for internal needs. It is now recommended that you sample the font texture with bilinear interpolation.
- 2015/01/11 (1.30) - added texture identifier in ImDrawCmd passed to your render function (we can now render images). make sure to call io.Fonts->SetTexID()
- 2015/01/11 (1.30) - removed IO.PixelCenterOffset (unnecessary, can be handled in user projection matrix)
- 2015/01/11 (1.30) - removed ImGui::IsItemFocused() in favor of ImGui::IsItemActive() which handles all widgets
- 2014/12/10 (1.18) - removed SetNewWindowDefaultPos() in favor of new generic API SetNextWindowPos(pos, ImGuiSetCondition_FirstUseEver)
- 2014/11/28 (1.17) - moved IO.Font*** options to inside the IO.Font-> structure (FontYOffset, FontTexUvForWhite, FontBaseScale, FontFallbackGlyph)
- 2014/11/26 (1.17) - reworked syntax of IMGUI_ONCE_UPON_A_FRAME helper macro to increase compiler compatibility
- 2014/11/07 (1.15) - renamed IsHovered() to IsItemHovered()
- 2014/10/02 (1.14) - renamed IMGUI_INCLUDE_IMGUI_USER_CPP to IMGUI_INCLUDE_IMGUI_USER_INL and imgui_user.cpp to imgui_user.inl (more IDE friendly)
- 2014/09/25 (1.13) - removed 'text_end' parameter from IO.SetClipboardTextFn (the string is now always zero-terminated for simplicity)
- 2014/09/24 (1.12) - renamed SetFontScale() to SetWindowFontScale()
- 2014/09/24 (1.12) - moved IM_MALLOC/IM_REALLOC/IM_FREE preprocessor defines to IO.MemAllocFn/IO.MemReallocFn/IO.MemFreeFn
- 2014/08/30 (1.09) - removed IO.FontHeight (now computed automatically)
- 2014/08/30 (1.09) - moved IMGUI_FONT_TEX_UV_FOR_WHITE preprocessor define to IO.FontTexUvForWhite
- 2014/08/28 (1.09) - changed the behavior of IO.PixelCenterOffset following various rendering fixes
FREQUENTLY ASKED QUESTIONS (FAQ)
================================
Read all answers online:
https://www.dearimgui.org/faq or https://github.com/ocornut/imgui/blob/master/docs/FAQ.md (same url)
Read all answers locally (with a text editor or ideally a Markdown viewer):
docs/FAQ.md
Some answers are copied down here to facilitate searching in code.
Q&A: Basics
===========
Q: Where is the documentation?
A: This library is poorly documented at the moment and expects the user to be acquainted with C/C++.
- Run the examples/ and explore them.
- See demo code in imgui_demo.cpp and particularly the ImGui::ShowDemoWindow() function.
- The demo covers most features of Dear ImGui, so you can read the code and see its output.
- See documentation and comments at the top of imgui.cpp + effectively imgui.h.
- Dozens of standalone example applications using e.g. OpenGL/DirectX are provided in the
examples/ folder to explain how to integrate Dear ImGui with your own engine/application.
- The Wiki (https://github.com/ocornut/imgui/wiki) has many resources and links.
- The Glossary (https://github.com/ocornut/imgui/wiki/Glossary) page also may be useful.
- Your programming IDE is your friend, find the type or function declaration to find comments
associated with it.
Q: What is this library called?
Q: Which version should I get?
>> This library is called "Dear ImGui", please don't call it "ImGui" :)
>> See https://www.dearimgui.org/faq for details.
Q&A: Integration
================
Q: How to get started?
A: Read 'PROGRAMMER GUIDE' above. Read examples/README.txt.
Q: How can I tell whether to dispatch mouse/keyboard to Dear ImGui or my application?
A: You should read the 'io.WantCaptureMouse', 'io.WantCaptureKeyboard' and 'io.WantTextInput' flags!
>> See https://www.dearimgui.org/faq for a fully detailed answer. You really want to read this.
Q. How can I enable keyboard controls?
Q: How can I use this without a mouse, without a keyboard or without a screen? (gamepad, input share, remote display)
Q: I integrated Dear ImGui in my engine and little squares are showing instead of text...
Q: I integrated Dear ImGui in my engine and some elements are clipping or disappearing when I move windows around...
Q: I integrated Dear ImGui in my engine and some elements are displaying outside their expected windows boundaries...
>> See https://www.dearimgui.org/faq
Q&A: Usage
----------
Q: About the ID Stack system..
- Why is my widget not reacting when I click on it?
- How can I have widgets with an empty label?
- How can I have multiple widgets with the same label?
- How can I have multiple windows with the same label?
Q: How can I display an image? What is ImTextureID, how does it work?
Q: How can I use my own math types instead of ImVec2/ImVec4?
Q: How can I interact with standard C++ types (such as std::string and std::vector)?
Q: How can I display custom shapes? (using low-level ImDrawList API)
>> See https://www.dearimgui.org/faq
Q&A: Fonts, Text
================
Q: How should I handle DPI in my application?
Q: How can I load a different font than the default?
Q: How can I easily use icons in my application?
Q: How can I load multiple fonts?
Q: How can I display and input non-Latin characters such as Chinese, Japanese, Korean, Cyrillic?
>> See https://www.dearimgui.org/faq and https://github.com/ocornut/imgui/edit/master/docs/FONTS.md
Q&A: Concerns
=============
Q: Who uses Dear ImGui?
Q: Can you create elaborate/serious tools with Dear ImGui?
Q: Can you reskin the look of Dear ImGui?
Q: Why using C++ (as opposed to C)?
>> See https://www.dearimgui.org/faq
Q&A: Community
==============
Q: How can I help?
A: - Businesses: please reach out to "contact AT dearimgui.com" if you work in a place using Dear ImGui!
We can discuss ways for your company to fund development via invoiced technical support, maintenance or sponsoring contacts.
This is among the most useful thing you can do for Dear ImGui. With increased funding, we can hire more people working on this project.
- Individuals: you can support continued development via PayPal donations. See README.
- If you are experienced with Dear ImGui and C++, look at the GitHub issues, look at the Wiki, read docs/TODO.txt
and see how you want to help and can help!
- Disclose your usage of Dear ImGui via a dev blog post, a tweet, a screenshot, a mention somewhere etc.
You may post screenshot or links in the gallery threads. Visuals are ideal as they inspire other programmers.
But even without visuals, disclosing your use of dear imgui helps the library grow credibility, and help other teams and programmers with taking decisions.
- If you have issues or if you need to hack into the library, even if you don't expect any support it is useful that you share your issues (on GitHub or privately).
*/
//-------------------------------------------------------------------------
// [SECTION] INCLUDES
//-------------------------------------------------------------------------
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_internal.h"
// System includes
#include <stdio.h> // vsnprintf, sscanf, printf
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// [Windows] On non-Visual Studio compilers, we default to IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS unless explicitly enabled
#if defined(_WIN32) && !defined(_MSC_VER) && !defined(IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS)
#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
#endif
// [Windows] OS specific includes (optional)
#if defined(_WIN32) && defined(IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS) && defined(IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS) && defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
#define IMGUI_DISABLE_WIN32_FUNCTIONS
#endif
#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#ifndef NOMINMAX
#define NOMINMAX
#endif
#ifndef __MINGW32__
#include <Windows.h> // _wfopen, OpenClipboard
#else
#include <windows.h>
#endif
#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP) // UWP doesn't have all Win32 functions
#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS
#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
#endif
#endif
// [Apple] OS specific includes
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
#pragma warning (disable: 5054) // operator '|': deprecated between enumerations of different types
#endif
#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to an 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#pragma warning (disable: 26495) // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
#pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
#pragma clang diagnostic ignored "-Wformat-nonliteral" // warning: format string is not a string literal // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
#pragma clang diagnostic ignored "-Wexit-time-destructors" // warning: declaration requires an exit-time destructor // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
#pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#pragma clang diagnostic ignored "-Wformat-pedantic" // warning: format specifies type 'void *' but the argument has type 'xxxx *' // unreasonable, would lead to casting every %p arg to void*. probably enabled by -pedantic.
#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast" // warning: cast to 'void *' from smaller integer type 'int'
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#elif defined(__GNUC__)
// We disable -Wpragmas because GCC doesn't provide a has_warning equivalent and some forks/patches may not follow the warning/version association.
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
#pragma GCC diagnostic ignored "-Wint-to-pointer-cast" // warning: cast to pointer from integer of different size
#pragma GCC diagnostic ignored "-Wformat" // warning: format '%p' expects argument of type 'void*', but argument 6 has type 'ImGuiWindow*'
#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
#pragma GCC diagnostic ignored "-Wformat-nonliteral" // warning: format not a string literal, format string not checked
#pragma GCC diagnostic ignored "-Wstrict-overflow" // warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif
// Debug options
#define IMGUI_DEBUG_NAV_SCORING 0 // Display navigation scoring preview when hovering items. Display last moving direction matches when holding CTRL
#define IMGUI_DEBUG_NAV_RECTS 0 // Display the reference navigation rectangle for each window
#define IMGUI_DEBUG_INI_SETTINGS 0 // Save additional comments in .ini file (particularly helps for Docking, but makes saving slower)
// When using CTRL+TAB (or Gamepad Square+L/R) we delay the visual a little in order to reduce visual noise doing a fast switch.
static const float NAV_WINDOWING_HIGHLIGHT_DELAY = 0.20f; // Time before the highlight and screen dimming starts fading in
static const float NAV_WINDOWING_LIST_APPEAR_DELAY = 0.15f; // Time before the window list starts to appear
// Window resizing from edges (when io.ConfigWindowsResizeFromEdges = true and ImGuiBackendFlags_HasMouseCursors is set in io.BackendFlags by backend)
static const float WINDOWS_HOVER_PADDING = 4.0f; // Extend outside window for hovering/resizing (maxxed with TouchPadding) and inside windows for borders. Affect FindHoveredWindow().
static const float WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER = 0.04f; // Reduce visual noise by only highlighting the border after a certain time.
static const float WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER = 0.70f; // Lock scrolled window (so it doesn't pick child windows that are scrolling through) for a certain time, unless mouse moved.
//-------------------------------------------------------------------------
// [SECTION] FORWARD DECLARATIONS
//-------------------------------------------------------------------------
static void SetCurrentWindow(ImGuiWindow* window);
static void FindHoveredWindow();
static ImGuiWindow* CreateNewWindow(const char* name, ImGuiWindowFlags flags);
static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window);
static void AddDrawListToDrawData(ImVector<ImDrawList*>* out_list, ImDrawList* draw_list);
static void AddWindowToSortBuffer(ImVector<ImGuiWindow*>* out_sorted_windows, ImGuiWindow* window);
// Settings
static void WindowSettingsHandler_ClearAll(ImGuiContext*, ImGuiSettingsHandler*);
static void* WindowSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name);
static void WindowSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line);
static void WindowSettingsHandler_ApplyAll(ImGuiContext*, ImGuiSettingsHandler*);
static void WindowSettingsHandler_WriteAll(ImGuiContext*, ImGuiSettingsHandler*, ImGuiTextBuffer* buf);
// Platform Dependents default implementation for IO functions
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx);
static void SetClipboardTextFn_DefaultImpl(void* user_data_ctx, const char* text);
static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport* viewport, ImGuiPlatformImeData* data);
namespace ImGui
{
// Navigation
static void NavUpdate();
static void NavUpdateWindowing();
static void NavUpdateWindowingOverlay();
static void NavUpdateCancelRequest();
static void NavUpdateCreateMoveRequest();
static void NavUpdateCreateTabbingRequest();
static float NavUpdatePageUpPageDown();
static inline void NavUpdateAnyRequestFlag();
static void NavUpdateCreateWrappingRequest();
static void NavEndFrame();
static bool NavScoreItem(ImGuiNavItemData* result);
static void NavApplyItemToResult(ImGuiNavItemData* result);
static void NavProcessItem();
static void NavProcessItemForTabbingRequest(ImGuiID id, ImGuiItemFlags item_flags, ImGuiNavMoveFlags move_flags);
static ImVec2 NavCalcPreferredRefPos();
static void NavSaveLastChildNavWindowIntoParent(ImGuiWindow* nav_window);
static ImGuiWindow* NavRestoreLastChildNavWindow(ImGuiWindow* window);
static void NavRestoreLayer(ImGuiNavLayer layer);
static void NavRestoreHighlightAfterMove();
static int FindWindowFocusIndex(ImGuiWindow* window);
// Error Checking and Debug Tools
static void ErrorCheckNewFrameSanityChecks();
static void ErrorCheckEndFrameSanityChecks();
static void UpdateDebugToolItemPicker();
static void UpdateDebugToolStackQueries();
// Inputs
static void UpdateKeyboardInputs();
static void UpdateMouseInputs();
static void UpdateMouseWheel();
static void UpdateKeyRoutingTable(ImGuiKeyRoutingTable* rt);
// Misc
static void UpdateSettings();
static bool UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4], const ImRect& visibility_rect);
static void RenderWindowOuterBorders(ImGuiWindow* window);
static void RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, bool handle_borders_and_resize_grips, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size);
static void RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open);
static void RenderDimmedBackgroundBehindWindow(ImGuiWindow* window, ImU32 col);
static void RenderDimmedBackgrounds();
static ImGuiWindow* FindBlockingModal(ImGuiWindow* window);
// Viewports
static void UpdateViewportsNewFrame();
}
//-----------------------------------------------------------------------------
// [SECTION] CONTEXT AND MEMORY ALLOCATORS
//-----------------------------------------------------------------------------
// DLL users:
// - Heaps and globals are not shared across DLL boundaries!
// - You will need to call SetCurrentContext() + SetAllocatorFunctions() for each static/DLL boundary you are calling from.
// - Same applies for hot-reloading mechanisms that are reliant on reloading DLL (note that many hot-reloading mechanisms work without DLL).
// - Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
// - Confused? In a debugger: add GImGui to your watch window and notice how its value changes depending on your current location (which DLL boundary you are in).
// Current context pointer. Implicitly used by all Dear ImGui functions. Always assumed to be != NULL.
// - ImGui::CreateContext() will automatically set this pointer if it is NULL.
// Change to a different context by calling ImGui::SetCurrentContext().
// - Important: Dear ImGui functions are not thread-safe because of this pointer.
// If you want thread-safety to allow N threads to access N different contexts:
// - Change this variable to use thread local storage so each thread can refer to a different context, in your imconfig.h:
// struct ImGuiContext;
// extern thread_local ImGuiContext* MyImGuiTLS;
// #define GImGui MyImGuiTLS
// And then define MyImGuiTLS in one of your cpp files. Note that thread_local is a C++11 keyword, earlier C++ uses compiler-specific keyword.
// - Future development aims to make this context pointer explicit to all calls. Also read https://github.com/ocornut/imgui/issues/586
// - If you need a finite number of contexts, you may compile and use multiple instances of the ImGui code from a different namespace.
// - DLL users: read comments above.
#ifndef GImGui
ImGuiContext* GImGui = NULL;
#endif
// Memory Allocator functions. Use SetAllocatorFunctions() to change them.
// - You probably don't want to modify that mid-program, and if you use global/static e.g. ImVector<> instances you may need to keep them accessible during program destruction.
// - DLL users: read comments above.
#ifndef IMGUI_DISABLE_DEFAULT_ALLOCATORS
static void* MallocWrapper(size_t size, void* user_data) { IM_UNUSED(user_data); return malloc(size); }
static void FreeWrapper(void* ptr, void* user_data) { IM_UNUSED(user_data); free(ptr); }
#else
static void* MallocWrapper(size_t size, void* user_data) { IM_UNUSED(user_data); IM_UNUSED(size); IM_ASSERT(0); return NULL; }
static void FreeWrapper(void* ptr, void* user_data) { IM_UNUSED(user_data); IM_UNUSED(ptr); IM_ASSERT(0); }
#endif
static ImGuiMemAllocFunc GImAllocatorAllocFunc = MallocWrapper;
static ImGuiMemFreeFunc GImAllocatorFreeFunc = FreeWrapper;
static void* GImAllocatorUserData = NULL;
//-----------------------------------------------------------------------------
// [SECTION] USER FACING STRUCTURES (ImGuiStyle, ImGuiIO)
//-----------------------------------------------------------------------------
ImGuiStyle::ImGuiStyle()
{
Alpha = 1.0f; // Global alpha applies to everything in Dear ImGui.
DisabledAlpha = 0.60f; // Additional alpha multiplier applied by BeginDisabled(). Multiply over current value of Alpha.
WindowPadding = ImVec2(8,8); // Padding within a window
WindowRounding = 0.0f; // Radius of window corners rounding. Set to 0.0f to have rectangular windows. Large values tend to lead to variety of artifacts and are not recommended.
WindowBorderSize = 1.0f; // Thickness of border around windows. Generally set to 0.0f or 1.0f. Other values not well tested.
WindowMinSize = ImVec2(32,32); // Minimum window size
WindowTitleAlign = ImVec2(0.0f,0.5f);// Alignment for title bar text
WindowMenuButtonPosition= ImGuiDir_Left; // Position of the collapsing/docking button in the title bar (left/right). Defaults to ImGuiDir_Left.
ChildRounding = 0.0f; // Radius of child window corners rounding. Set to 0.0f to have rectangular child windows
ChildBorderSize = 1.0f; // Thickness of border around child windows. Generally set to 0.0f or 1.0f. Other values not well tested.
PopupRounding = 0.0f; // Radius of popup window corners rounding. Set to 0.0f to have rectangular child windows
PopupBorderSize = 1.0f; // Thickness of border around popup or tooltip windows. Generally set to 0.0f or 1.0f. Other values not well tested.
FramePadding = ImVec2(4,3); // Padding within a framed rectangle (used by most widgets)
FrameRounding = 0.0f; // Radius of frame corners rounding. Set to 0.0f to have rectangular frames (used by most widgets).
FrameBorderSize = 0.0f; // Thickness of border around frames. Generally set to 0.0f or 1.0f. Other values not well tested.
ItemSpacing = ImVec2(8,4); // Horizontal and vertical spacing between widgets/lines
ItemInnerSpacing = ImVec2(4,4); // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label)
CellPadding = ImVec2(4,2); // Padding within a table cell
TouchExtraPadding = ImVec2(0,0); // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
IndentSpacing = 21.0f; // Horizontal spacing when e.g. entering a tree node. Generally == (FontSize + FramePadding.x*2).
ColumnsMinSpacing = 6.0f; // Minimum horizontal spacing between two columns. Preferably > (FramePadding.x + 1).
ScrollbarSize = 14.0f; // Width of the vertical scrollbar, Height of the horizontal scrollbar
ScrollbarRounding = 9.0f; // Radius of grab corners rounding for scrollbar
GrabMinSize = 12.0f; // Minimum width/height of a grab box for slider/scrollbar
GrabRounding = 0.0f; // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
LogSliderDeadzone = 4.0f; // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
TabRounding = 4.0f; // Radius of upper corners of a tab. Set to 0.0f to have rectangular tabs.
TabBorderSize = 0.0f; // Thickness of border around tabs.
TabMinWidthForCloseButton = 0.0f; // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
ColorButtonPosition = ImGuiDir_Right; // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
ButtonTextAlign = ImVec2(0.5f,0.5f);// Alignment of button text when button is larger than text.
SelectableTextAlign = ImVec2(0.0f,0.0f);// Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
SeparatorTextBorderSize = 3.0f; // Thickkness of border in SeparatorText()
SeparatorTextAlign = ImVec2(0.0f,0.5f);// Alignment of text within the separator. Defaults to (0.0f, 0.5f) (left aligned, center).
SeparatorTextPadding = ImVec2(20.0f,3.f);// Horizontal offset of text from each edge of the separator + spacing on other axis. Generally small values. .y is recommended to be == FramePadding.y.
DisplayWindowPadding = ImVec2(19,19); // Window position are clamped to be visible within the display area or monitors by at least this amount. Only applies to regular windows.
DisplaySafeAreaPadding = ImVec2(3,3); // If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding. Covers popups/tooltips as well regular windows.
MouseCursorScale = 1.0f; // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
AntiAliasedLines = true; // Enable anti-aliased lines/borders. Disable if you are really tight on CPU/GPU.
AntiAliasedLinesUseTex = true; // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering (NOT point/nearest filtering).
AntiAliasedFill = true; // Enable anti-aliased filled shapes (rounded rectangles, circles, etc.).
CurveTessellationTol = 1.25f; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
CircleTessellationMaxError = 0.30f; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
// Default theme
ImGui::StyleColorsDark(this);
}
// To scale your entire UI (e.g. if you want your app to use High DPI or generally be DPI aware) you may use this helper function. Scaling the fonts is done separately and is up to you.
// Important: This operation is lossy because we round all sizes to integer. If you need to change your scale multiples, call this over a freshly initialized ImGuiStyle structure rather than scaling multiple times.
void ImGuiStyle::ScaleAllSizes(float scale_factor)
{
WindowPadding = ImFloor(WindowPadding * scale_factor);
WindowRounding = ImFloor(WindowRounding * scale_factor);
WindowMinSize = ImFloor(WindowMinSize * scale_factor);
ChildRounding = ImFloor(ChildRounding * scale_factor);
PopupRounding = ImFloor(PopupRounding * scale_factor);
FramePadding = ImFloor(FramePadding * scale_factor);
FrameRounding = ImFloor(FrameRounding * scale_factor);
ItemSpacing = ImFloor(ItemSpacing * scale_factor);
ItemInnerSpacing = ImFloor(ItemInnerSpacing * scale_factor);
CellPadding = ImFloor(CellPadding * scale_factor);
TouchExtraPadding = ImFloor(TouchExtraPadding * scale_factor);
IndentSpacing = ImFloor(IndentSpacing * scale_factor);
ColumnsMinSpacing = ImFloor(ColumnsMinSpacing * scale_factor);
ScrollbarSize = ImFloor(ScrollbarSize * scale_factor);
ScrollbarRounding = ImFloor(ScrollbarRounding * scale_factor);
GrabMinSize = ImFloor(GrabMinSize * scale_factor);
GrabRounding = ImFloor(GrabRounding * scale_factor);
LogSliderDeadzone = ImFloor(LogSliderDeadzone * scale_factor);
TabRounding = ImFloor(TabRounding * scale_factor);
TabMinWidthForCloseButton = (TabMinWidthForCloseButton != FLT_MAX) ? ImFloor(TabMinWidthForCloseButton * scale_factor) : FLT_MAX;
SeparatorTextPadding = ImFloor(SeparatorTextPadding * scale_factor);
DisplayWindowPadding = ImFloor(DisplayWindowPadding * scale_factor);
DisplaySafeAreaPadding = ImFloor(DisplaySafeAreaPadding * scale_factor);
MouseCursorScale = ImFloor(MouseCursorScale * scale_factor);
}
ImGuiIO::ImGuiIO()
{
// Most fields are initialized with zero
memset(this, 0, sizeof(*this));
IM_STATIC_ASSERT(IM_ARRAYSIZE(ImGuiIO::MouseDown) == ImGuiMouseButton_COUNT && IM_ARRAYSIZE(ImGuiIO::MouseClicked) == ImGuiMouseButton_COUNT);
// Settings
ConfigFlags = ImGuiConfigFlags_None;
BackendFlags = ImGuiBackendFlags_None;
DisplaySize = ImVec2(-1.0f, -1.0f);
DeltaTime = 1.0f / 60.0f;
IniSavingRate = 5.0f;
IniFilename = "imgui.ini"; // Important: "imgui.ini" is relative to current working dir, most apps will want to lock this to an absolute path (e.g. same path as executables).
LogFilename = "imgui_log.txt";
MouseDoubleClickTime = 0.30f;
MouseDoubleClickMaxDist = 6.0f;
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
for (int i = 0; i < ImGuiKey_COUNT; i++)
KeyMap[i] = -1;
#endif
KeyRepeatDelay = 0.275f;
KeyRepeatRate = 0.050f;
HoverDelayNormal = 0.30f;
HoverDelayShort = 0.10f;
UserData = NULL;
Fonts = NULL;
FontGlobalScale = 1.0f;
FontDefault = NULL;
FontAllowUserScaling = false;
DisplayFramebufferScale = ImVec2(1.0f, 1.0f);
// Miscellaneous options
MouseDrawCursor = false;
#ifdef __APPLE__
ConfigMacOSXBehaviors = true; // Set Mac OS X style defaults based on __APPLE__ compile time flag
#else
ConfigMacOSXBehaviors = false;
#endif
ConfigInputTrickleEventQueue = true;
ConfigInputTextCursorBlink = true;
ConfigInputTextEnterKeepActive = false;
ConfigDragClickToInputText = false;
ConfigWindowsResizeFromEdges = true;
ConfigWindowsMoveFromTitleBarOnly = false;
ConfigMemoryCompactTimer = 60.0f;
ConfigDebugBeginReturnValueOnce = false;
ConfigDebugBeginReturnValueLoop = false;
// Platform Functions
// Note: Initialize() will setup default clipboard/ime handlers.
BackendPlatformName = BackendRendererName = NULL;
BackendPlatformUserData = BackendRendererUserData = BackendLanguageUserData = NULL;
// Input (NB: we already have memset zero the entire structure!)
MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
MousePosPrev = ImVec2(-FLT_MAX, -FLT_MAX);
MouseDragThreshold = 6.0f;
for (int i = 0; i < IM_ARRAYSIZE(MouseDownDuration); i++) MouseDownDuration[i] = MouseDownDurationPrev[i] = -1.0f;
for (int i = 0; i < IM_ARRAYSIZE(KeysData); i++) { KeysData[i].DownDuration = KeysData[i].DownDurationPrev = -1.0f; }
AppAcceptingEvents = true;
BackendUsingLegacyKeyArrays = (ImS8)-1;
BackendUsingLegacyNavInputArray = true; // assume using legacy array until proven wrong
}
// Pass in translated ASCII characters for text input.
// - with glfw you can get those from the callback set in glfwSetCharCallback()
// - on Windows you can get those using ToAscii+keyboard state, or via the WM_CHAR message
// FIXME: Should in theory be called "AddCharacterEvent()" to be consistent with new API
void ImGuiIO::AddInputCharacter(unsigned int c)
{
IM_ASSERT(Ctx != NULL);
ImGuiContext& g = *Ctx;
if (c == 0 || !AppAcceptingEvents)
return;
ImGuiInputEvent e;
e.Type = ImGuiInputEventType_Text;
e.Source = ImGuiInputSource_Keyboard;
e.Text.Char = c;
g.InputEventsQueue.push_back(e);
}
// UTF16 strings use surrogate pairs to encode codepoints >= 0x10000, so
// we should save the high surrogate.
void ImGuiIO::AddInputCharacterUTF16(ImWchar16 c)
{
if ((c == 0 && InputQueueSurrogate == 0) || !AppAcceptingEvents)
return;
if ((c & 0xFC00) == 0xD800) // High surrogate, must save
{
if (InputQueueSurrogate != 0)
AddInputCharacter(IM_UNICODE_CODEPOINT_INVALID);
InputQueueSurrogate = c;
return;
}
ImWchar cp = c;
if (InputQueueSurrogate != 0)
{
if ((c & 0xFC00) != 0xDC00) // Invalid low surrogate
{
AddInputCharacter(IM_UNICODE_CODEPOINT_INVALID);
}
else
{
#if IM_UNICODE_CODEPOINT_MAX == 0xFFFF
cp = IM_UNICODE_CODEPOINT_INVALID; // Codepoint will not fit in ImWchar
#else
cp = (ImWchar)(((InputQueueSurrogate - 0xD800) << 10) + (c - 0xDC00) + 0x10000);
#endif
}
InputQueueSurrogate = 0;
}
AddInputCharacter((unsigned)cp);
}
void ImGuiIO::AddInputCharactersUTF8(const char* utf8_chars)
{
if (!AppAcceptingEvents)
return;
while (*utf8_chars != 0)
{
unsigned int c = 0;
utf8_chars += ImTextCharFromUtf8(&c, utf8_chars, NULL);
AddInputCharacter(c);
}
}
// FIXME: Perhaps we could clear queued events as well?
void ImGuiIO::ClearInputCharacters()
{
InputQueueCharacters.resize(0);
}
// FIXME: Perhaps we could clear queued events as well?
void ImGuiIO::ClearInputKeys()
{
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
memset(KeysDown, 0, sizeof(KeysDown));
#endif
for (int n = 0; n < IM_ARRAYSIZE(KeysData); n++)
{
KeysData[n].Down = false;
KeysData[n].DownDuration = -1.0f;
KeysData[n].DownDurationPrev = -1.0f;
}
KeyCtrl = KeyShift = KeyAlt = KeySuper = false;
KeyMods = ImGuiMod_None;
MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
for (int n = 0; n < IM_ARRAYSIZE(MouseDown); n++)
{
MouseDown[n] = false;
MouseDownDuration[n] = MouseDownDurationPrev[n] = -1.0f;
}
MouseWheel = MouseWheelH = 0.0f;
}
static ImGuiInputEvent* FindLatestInputEvent(ImGuiInputEventType type, int arg = -1)
{
ImGuiContext& g = *GImGui;
for (int n = g.InputEventsQueue.Size - 1; n >= 0; n--)
{
ImGuiInputEvent* e = &g.InputEventsQueue[n];
if (e->Type != type)
continue;
if (type == ImGuiInputEventType_Key && e->Key.Key != arg)
continue;
if (type == ImGuiInputEventType_MouseButton && e->MouseButton.Button != arg)
continue;
return e;
}
return NULL;
}
// Queue a new key down/up event.
// - ImGuiKey key: Translated key (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character)
// - bool down: Is the key down? use false to signify a key release.
// - float analog_value: 0.0f..1.0f
void ImGuiIO::AddKeyAnalogEvent(ImGuiKey key, bool down, float analog_value)
{
//if (e->Down) { IMGUI_DEBUG_LOG_IO("AddKeyEvent() Key='%s' %d, NativeKeycode = %d, NativeScancode = %d\n", ImGui::GetKeyName(e->Key), e->Down, e->NativeKeycode, e->NativeScancode); }
IM_ASSERT(Ctx != NULL);
if (key == ImGuiKey_None || !AppAcceptingEvents)
return;
ImGuiContext& g = *Ctx;
IM_ASSERT(ImGui::IsNamedKeyOrModKey(key)); // Backend needs to pass a valid ImGuiKey_ constant. 0..511 values are legacy native key codes which are not accepted by this API.
IM_ASSERT(!ImGui::IsAliasKey(key)); // Backend cannot submit ImGuiKey_MouseXXX values they are automatically inferred from AddMouseXXX() events.
IM_ASSERT(key != ImGuiMod_Shortcut); // We could easily support the translation here but it seems saner to not accept it (TestEngine perform a translation itself)
// Verify that backend isn't mixing up using new io.AddKeyEvent() api and old io.KeysDown[] + io.KeyMap[] data.
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
IM_ASSERT((BackendUsingLegacyKeyArrays == -1 || BackendUsingLegacyKeyArrays == 0) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
if (BackendUsingLegacyKeyArrays == -1)
for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
IM_ASSERT(KeyMap[n] == -1 && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
BackendUsingLegacyKeyArrays = 0;
#endif
if (ImGui::IsGamepadKey(key))
BackendUsingLegacyNavInputArray = false;
// Filter duplicate (in particular: key mods and gamepad analog values are commonly spammed)
const ImGuiInputEvent* latest_event = FindLatestInputEvent(ImGuiInputEventType_Key, (int)key);
const ImGuiKeyData* key_data = ImGui::GetKeyData(key);
const bool latest_key_down = latest_event ? latest_event->Key.Down : key_data->Down;
const float latest_key_analog = latest_event ? latest_event->Key.AnalogValue : key_data->AnalogValue;
if (latest_key_down == down && latest_key_analog == analog_value)
return;
// Add event
ImGuiInputEvent e;
e.Type = ImGuiInputEventType_Key;
e.Source = ImGui::IsGamepadKey(key) ? ImGuiInputSource_Gamepad : ImGuiInputSource_Keyboard;
e.Key.Key = key;
e.Key.Down = down;
e.Key.AnalogValue = analog_value;
g.InputEventsQueue.push_back(e);
}
void ImGuiIO::AddKeyEvent(ImGuiKey key, bool down)
{
if (!AppAcceptingEvents)
return;
AddKeyAnalogEvent(key, down, down ? 1.0f : 0.0f);
}
// [Optional] Call after AddKeyEvent().
// Specify native keycode, scancode + Specify index for legacy <1.87 IsKeyXXX() functions with native indices.
// If you are writing a backend in 2022 or don't use IsKeyXXX() with native values that are not ImGuiKey values, you can avoid calling this.
void ImGuiIO::SetKeyEventNativeData(ImGuiKey key, int native_keycode, int native_scancode, int native_legacy_index)
{
if (key == ImGuiKey_None)
return;
IM_ASSERT(ImGui::IsNamedKey(key)); // >= 512
IM_ASSERT(native_legacy_index == -1 || ImGui::IsLegacyKey((ImGuiKey)native_legacy_index)); // >= 0 && <= 511
IM_UNUSED(native_keycode); // Yet unused
IM_UNUSED(native_scancode); // Yet unused
// Build native->imgui map so old user code can still call key functions with native 0..511 values.
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
const int legacy_key = (native_legacy_index != -1) ? native_legacy_index : native_keycode;
if (!ImGui::IsLegacyKey((ImGuiKey)legacy_key))
return;
KeyMap[legacy_key] = key;
KeyMap[key] = legacy_key;
#else
IM_UNUSED(key);
IM_UNUSED(native_legacy_index);
#endif
}
// Set master flag for accepting key/mouse/text events (default to true). Useful if you have native dialog boxes that are interrupting your application loop/refresh, and you want to disable events being queued while your app is frozen.
void ImGuiIO::SetAppAcceptingEvents(bool accepting_events)
{
AppAcceptingEvents = accepting_events;
}
// Queue a mouse move event
void ImGuiIO::AddMousePosEvent(float x, float y)
{
IM_ASSERT(Ctx != NULL);
ImGuiContext& g = *Ctx;
if (!AppAcceptingEvents)
return;
// Apply same flooring as UpdateMouseInputs()
ImVec2 pos((x > -FLT_MAX) ? ImFloorSigned(x) : x, (y > -FLT_MAX) ? ImFloorSigned(y) : y);
// Filter duplicate
const ImGuiInputEvent* latest_event = FindLatestInputEvent(ImGuiInputEventType_MousePos);
const ImVec2 latest_pos = latest_event ? ImVec2(latest_event->MousePos.PosX, latest_event->MousePos.PosY) : g.IO.MousePos;
if (latest_pos.x == pos.x && latest_pos.y == pos.y)
return;
ImGuiInputEvent e;
e.Type = ImGuiInputEventType_MousePos;
e.Source = ImGuiInputSource_Mouse;
e.MousePos.PosX = pos.x;
e.MousePos.PosY = pos.y;
g.InputEventsQueue.push_back(e);
}
void ImGuiIO::AddMouseButtonEvent(int mouse_button, bool down)
{
IM_ASSERT(Ctx != NULL);
ImGuiContext& g = *Ctx;
IM_ASSERT(mouse_button >= 0 && mouse_button < ImGuiMouseButton_COUNT);
if (!AppAcceptingEvents)
return;
// Filter duplicate
const ImGuiInputEvent* latest_event = FindLatestInputEvent(ImGuiInputEventType_MouseButton, (int)mouse_button);
const bool latest_button_down = latest_event ? latest_event->MouseButton.Down : g.IO.MouseDown[mouse_button];
if (latest_button_down == down)
return;
ImGuiInputEvent e;
e.Type = ImGuiInputEventType_MouseButton;
e.Source = ImGuiInputSource_Mouse;
e.MouseButton.Button = mouse_button;
e.MouseButton.Down = down;
g.InputEventsQueue.push_back(e);
}
// Queue a mouse wheel event (some mouse/API may only have a Y component)
void ImGuiIO::AddMouseWheelEvent(float wheel_x, float wheel_y)
{
IM_ASSERT(Ctx != NULL);
ImGuiContext& g = *Ctx;
// Filter duplicate (unlike most events, wheel values are relative and easy to filter)
if (!AppAcceptingEvents || (wheel_x == 0.0f && wheel_y == 0.0f))
return;
ImGuiInputEvent e;
e.Type = ImGuiInputEventType_MouseWheel;
e.Source = ImGuiInputSource_Mouse;
e.MouseWheel.WheelX = wheel_x;
e.MouseWheel.WheelY = wheel_y;
g.InputEventsQueue.push_back(e);
}
void ImGuiIO::AddFocusEvent(bool focused)
{
IM_ASSERT(Ctx != NULL);
ImGuiContext& g = *Ctx;
// Filter duplicate
const ImGuiInputEvent* latest_event = FindLatestInputEvent(ImGuiInputEventType_Focus);
const bool latest_focused = latest_event ? latest_event->AppFocused.Focused : !g.IO.AppFocusLost;
if (latest_focused == focused)
return;
ImGuiInputEvent e;
e.Type = ImGuiInputEventType_Focus;
e.AppFocused.Focused = focused;
g.InputEventsQueue.push_back(e);
}
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (Geometry functions)
//-----------------------------------------------------------------------------
ImVec2 ImBezierCubicClosestPoint(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, int num_segments)
{
IM_ASSERT(num_segments > 0); // Use ImBezierCubicClosestPointCasteljau()
ImVec2 p_last = p1;
ImVec2 p_closest;
float p_closest_dist2 = FLT_MAX;
float t_step = 1.0f / (float)num_segments;
for (int i_step = 1; i_step <= num_segments; i_step++)
{
ImVec2 p_current = ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step);
ImVec2 p_line = ImLineClosestPoint(p_last, p_current, p);
float dist2 = ImLengthSqr(p - p_line);
if (dist2 < p_closest_dist2)
{
p_closest = p_line;
p_closest_dist2 = dist2;
}
p_last = p_current;
}
return p_closest;
}
// Closely mimics PathBezierToCasteljau() in imgui_draw.cpp
static void ImBezierCubicClosestPointCasteljauStep(const ImVec2& p, ImVec2& p_closest, ImVec2& p_last, float& p_closest_dist2, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
{
float dx = x4 - x1;
float dy = y4 - y1;
float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
d2 = (d2 >= 0) ? d2 : -d2;
d3 = (d3 >= 0) ? d3 : -d3;
if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
{
ImVec2 p_current(x4, y4);
ImVec2 p_line = ImLineClosestPoint(p_last, p_current, p);
float dist2 = ImLengthSqr(p - p_line);
if (dist2 < p_closest_dist2)
{
p_closest = p_line;
p_closest_dist2 = dist2;
}
p_last = p_current;
}
else if (level < 10)
{
float x12 = (x1 + x2)*0.5f, y12 = (y1 + y2)*0.5f;
float x23 = (x2 + x3)*0.5f, y23 = (y2 + y3)*0.5f;
float x34 = (x3 + x4)*0.5f, y34 = (y3 + y4)*0.5f;
float x123 = (x12 + x23)*0.5f, y123 = (y12 + y23)*0.5f;
float x234 = (x23 + x34)*0.5f, y234 = (y23 + y34)*0.5f;
float x1234 = (x123 + x234)*0.5f, y1234 = (y123 + y234)*0.5f;
ImBezierCubicClosestPointCasteljauStep(p, p_closest, p_last, p_closest_dist2, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
ImBezierCubicClosestPointCasteljauStep(p, p_closest, p_last, p_closest_dist2, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
}
}
// tess_tol is generally the same value you would find in ImGui::GetStyle().CurveTessellationTol
// Because those ImXXX functions are lower-level than ImGui:: we cannot access this value automatically.
ImVec2 ImBezierCubicClosestPointCasteljau(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, float tess_tol)
{
IM_ASSERT(tess_tol > 0.0f);
ImVec2 p_last = p1;
ImVec2 p_closest;
float p_closest_dist2 = FLT_MAX;
ImBezierCubicClosestPointCasteljauStep(p, p_closest, p_last, p_closest_dist2, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, tess_tol, 0);
return p_closest;
}
ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p)
{
ImVec2 ap = p - a;
ImVec2 ab_dir = b - a;
float dot = ap.x * ab_dir.x + ap.y * ab_dir.y;
if (dot < 0.0f)
return a;
float ab_len_sqr = ab_dir.x * ab_dir.x + ab_dir.y * ab_dir.y;
if (dot > ab_len_sqr)
return b;
return a + ab_dir * dot / ab_len_sqr;
}
bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p)
{
bool b1 = ((p.x - b.x) * (a.y - b.y) - (p.y - b.y) * (a.x - b.x)) < 0.0f;
bool b2 = ((p.x - c.x) * (b.y - c.y) - (p.y - c.y) * (b.x - c.x)) < 0.0f;
bool b3 = ((p.x - a.x) * (c.y - a.y) - (p.y - a.y) * (c.x - a.x)) < 0.0f;
return ((b1 == b2) && (b2 == b3));
}
void ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w)
{
ImVec2 v0 = b - a;
ImVec2 v1 = c - a;
ImVec2 v2 = p - a;
const float denom = v0.x * v1.y - v1.x * v0.y;
out_v = (v2.x * v1.y - v1.x * v2.y) / denom;
out_w = (v0.x * v2.y - v2.x * v0.y) / denom;
out_u = 1.0f - out_v - out_w;
}
ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p)
{
ImVec2 proj_ab = ImLineClosestPoint(a, b, p);
ImVec2 proj_bc = ImLineClosestPoint(b, c, p);
ImVec2 proj_ca = ImLineClosestPoint(c, a, p);
float dist2_ab = ImLengthSqr(p - proj_ab);
float dist2_bc = ImLengthSqr(p - proj_bc);
float dist2_ca = ImLengthSqr(p - proj_ca);
float m = ImMin(dist2_ab, ImMin(dist2_bc, dist2_ca));
if (m == dist2_ab)
return proj_ab;
if (m == dist2_bc)
return proj_bc;
return proj_ca;
}
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (String, Format, Hash functions)
//-----------------------------------------------------------------------------
// Consider using _stricmp/_strnicmp under Windows or strcasecmp/strncasecmp. We don't actually use either ImStricmp/ImStrnicmp in the codebase any more.
int ImStricmp(const char* str1, const char* str2)
{
int d;
while ((d = ImToUpper(*str2) - ImToUpper(*str1)) == 0 && *str1) { str1++; str2++; }
return d;
}
int ImStrnicmp(const char* str1, const char* str2, size_t count)
{
int d = 0;
while (count > 0 && (d = ImToUpper(*str2) - ImToUpper(*str1)) == 0 && *str1) { str1++; str2++; count--; }
return d;
}
void ImStrncpy(char* dst, const char* src, size_t count)
{
if (count < 1)
return;
if (count > 1)
strncpy(dst, src, count - 1);
dst[count - 1] = 0;
}
char* ImStrdup(const char* str)
{
size_t len = strlen(str);
void* buf = IM_ALLOC(len + 1);
return (char*)memcpy(buf, (const void*)str, len + 1);
}
char* ImStrdupcpy(char* dst, size_t* p_dst_size, const char* src)
{
size_t dst_buf_size = p_dst_size ? *p_dst_size : strlen(dst) + 1;
size_t src_size = strlen(src) + 1;
if (dst_buf_size < src_size)
{
IM_FREE(dst);
dst = (char*)IM_ALLOC(src_size);
if (p_dst_size)
*p_dst_size = src_size;
}
return (char*)memcpy(dst, (const void*)src, src_size);
}
const char* ImStrchrRange(const char* str, const char* str_end, char c)
{
const char* p = (const char*)memchr(str, (int)c, str_end - str);
return p;
}
int ImStrlenW(const ImWchar* str)
{
//return (int)wcslen((const wchar_t*)str); // FIXME-OPT: Could use this when wchar_t are 16-bit
int n = 0;
while (*str++) n++;
return n;
}
// Find end-of-line. Return pointer will point to either first \n, either str_end.
const char* ImStreolRange(const char* str, const char* str_end)
{
const char* p = (const char*)memchr(str, '\n', str_end - str);
return p ? p : str_end;
}
const ImWchar* ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin) // find beginning-of-line
{
while (buf_mid_line > buf_begin && buf_mid_line[-1] != '\n')
buf_mid_line--;
return buf_mid_line;
}
const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end)
{
if (!needle_end)
needle_end = needle + strlen(needle);
const char un0 = (char)ImToUpper(*needle);
while ((!haystack_end && *haystack) || (haystack_end && haystack < haystack_end))
{
if (ImToUpper(*haystack) == un0)
{
const char* b = needle + 1;
for (const char* a = haystack + 1; b < needle_end; a++, b++)
if (ImToUpper(*a) != ImToUpper(*b))
break;
if (b == needle_end)
return haystack;
}
haystack++;
}
return NULL;
}
// Trim str by offsetting contents when there's leading data + writing a \0 at the trailing position. We use this in situation where the cost is negligible.
void ImStrTrimBlanks(char* buf)
{
char* p = buf;
while (p[0] == ' ' || p[0] == '\t') // Leading blanks
p++;
char* p_start = p;
while (*p != 0) // Find end of string
p++;
while (p > p_start && (p[-1] == ' ' || p[-1] == '\t')) // Trailing blanks
p--;
if (p_start != buf) // Copy memory if we had leading blanks
memmove(buf, p_start, p - p_start);
buf[p - p_start] = 0; // Zero terminate
}
const char* ImStrSkipBlank(const char* str)
{
while (str[0] == ' ' || str[0] == '\t')
str++;
return str;
}
// A) MSVC version appears to return -1 on overflow, whereas glibc appears to return total count (which may be >= buf_size).
// Ideally we would test for only one of those limits at runtime depending on the behavior the vsnprintf(), but trying to deduct it at compile time sounds like a pandora can of worm.
// B) When buf==NULL vsnprintf() will return the output size.
#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
// We support stb_sprintf which is much faster (see: https://github.com/nothings/stb/blob/master/stb_sprintf.h)
// You may set IMGUI_USE_STB_SPRINTF to use our default wrapper, or set IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
// and setup the wrapper yourself. (FIXME-OPT: Some of our high-level operations such as ImGuiTextBuffer::appendfv() are
// designed using two-passes worst case, which probably could be improved using the stbsp_vsprintfcb() function.)
#ifdef IMGUI_USE_STB_SPRINTF
#define STB_SPRINTF_IMPLEMENTATION
#ifdef IMGUI_STB_SPRINTF_FILENAME
#include IMGUI_STB_SPRINTF_FILENAME
#else
#include "stb_sprintf.h"
#endif
#endif
#if defined(_MSC_VER) && !defined(vsnprintf)
#define vsnprintf _vsnprintf
#endif
int ImFormatString(char* buf, size_t buf_size, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
#ifdef IMGUI_USE_STB_SPRINTF
int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
#else
int w = vsnprintf(buf, buf_size, fmt, args);
#endif
va_end(args);
if (buf == NULL)
return w;
if (w == -1 || w >= (int)buf_size)
w = (int)buf_size - 1;
buf[w] = 0;
return w;
}
int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args)
{
#ifdef IMGUI_USE_STB_SPRINTF
int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
#else
int w = vsnprintf(buf, buf_size, fmt, args);
#endif
if (buf == NULL)
return w;
if (w == -1 || w >= (int)buf_size)
w = (int)buf_size - 1;
buf[w] = 0;
return w;
}
#endif // #ifdef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
void ImFormatStringToTempBuffer(const char** out_buf, const char** out_buf_end, const char* fmt, ...)
{
ImGuiContext& g = *GImGui;
va_list args;
va_start(args, fmt);
if (fmt[0] == '%' && fmt[1] == 's' && fmt[2] == 0)
{
const char* buf = va_arg(args, const char*); // Skip formatting when using "%s"
*out_buf = buf;
if (out_buf_end) { *out_buf_end = buf + strlen(buf); }
}
else
{
int buf_len = ImFormatStringV(g.TempBuffer.Data, g.TempBuffer.Size, fmt, args);
*out_buf = g.TempBuffer.Data;
if (out_buf_end) { *out_buf_end = g.TempBuffer.Data + buf_len; }
}
va_end(args);
}
void ImFormatStringToTempBufferV(const char** out_buf, const char** out_buf_end, const char* fmt, va_list args)
{
ImGuiContext& g = *GImGui;
if (fmt[0] == '%' && fmt[1] == 's' && fmt[2] == 0)
{
const char* buf = va_arg(args, const char*); // Skip formatting when using "%s"
*out_buf = buf;
if (out_buf_end) { *out_buf_end = buf + strlen(buf); }
}
else
{
int buf_len = ImFormatStringV(g.TempBuffer.Data, g.TempBuffer.Size, fmt, args);
*out_buf = g.TempBuffer.Data;
if (out_buf_end) { *out_buf_end = g.TempBuffer.Data + buf_len; }
}
}
// CRC32 needs a 1KB lookup table (not cache friendly)
// Although the code to generate the table is simple and shorter than the table itself, using a const table allows us to easily:
// - avoid an unnecessary branch/memory tap, - keep the ImHashXXX functions usable by static constructors, - make it thread-safe.
static const ImU32 GCrc32LookupTable[256] =
{
0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535,0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD,0xE7B82D07,0x90BF1D91,
0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D,0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC,0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,
0x3B6E20C8,0x4C69105E,0xD56041E4,0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C,0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,
0x26D930AC,0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F,0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB,0xB6662D3D,
0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F,0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB,0x086D3D2D,0x91646C97,0xE6635C01,
0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E,0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA,0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,
0x4DB26158,0x3AB551CE,0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A,0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9,
0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409,0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81,0xB7BD5C3B,0xC0BA6CAD,
0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739,0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8,0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,
0xF00F9344,0x8708A3D2,0x1E01F268,0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0,0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,
0xD6D6A3E8,0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B,0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF,0x4669BE79,
0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703,0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7,0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,
0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A,0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE,0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,
0x86D3D2D4,0xF1D4E242,0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6,0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45,
0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D,0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5,0x47B2CF7F,0x30B5FFE9,
0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605,0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94,0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D,
};
// Known size hash
// It is ok to call ImHashData on a string with known length but the ### operator won't be supported.
// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
ImGuiID ImHashData(const void* data_p, size_t data_size, ImGuiID seed)
{
ImU32 crc = ~seed;
const unsigned char* data = (const unsigned char*)data_p;
const ImU32* crc32_lut = GCrc32LookupTable;
while (data_size-- != 0)
crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ *data++];
return ~crc;
}
// Zero-terminated string hash, with support for ### to reset back to seed value
// We support a syntax of "label###id" where only "###id" is included in the hash, and only "label" gets displayed.
// Because this syntax is rarely used we are optimizing for the common case.
// - If we reach ### in the string we discard the hash so far and reset to the seed.
// - We don't do 'current += 2; continue;' after handling ### to keep the code smaller/faster (measured ~10% diff in Debug build)
// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
ImGuiID ImHashStr(const char* data_p, size_t data_size, ImGuiID seed)
{
seed = ~seed;
ImU32 crc = seed;
const unsigned char* data = (const unsigned char*)data_p;
const ImU32* crc32_lut = GCrc32LookupTable;
if (data_size != 0)
{
while (data_size-- != 0)
{
unsigned char c = *data++;
if (c == '#' && data_size >= 2 && data[0] == '#' && data[1] == '#')
crc = seed;
crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ c];
}
}
else
{
while (unsigned char c = *data++)
{
if (c == '#' && data[0] == '#' && data[1] == '#')
crc = seed;
crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ c];
}
}
return ~crc;
}
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (File functions)
//-----------------------------------------------------------------------------
// Default file functions
#ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
ImFileHandle ImFileOpen(const char* filename, const char* mode)
{
#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(__CYGWIN__) && !defined(__GNUC__)
// We need a fopen() wrapper because MSVC/Windows fopen doesn't handle UTF-8 filenames.
// Previously we used ImTextCountCharsFromUtf8/ImTextStrFromUtf8 here but we now need to support ImWchar16 and ImWchar32!
const int filename_wsize = ::MultiByteToWideChar(CP_UTF8, 0, filename, -1, NULL, 0);
const int mode_wsize = ::MultiByteToWideChar(CP_UTF8, 0, mode, -1, NULL, 0);
ImVector<wchar_t> buf;
buf.resize(filename_wsize + mode_wsize);
::MultiByteToWideChar(CP_UTF8, 0, filename, -1, (wchar_t*)&buf[0], filename_wsize);
::MultiByteToWideChar(CP_UTF8, 0, mode, -1, (wchar_t*)&buf[filename_wsize], mode_wsize);
return ::_wfopen((const wchar_t*)&buf[0], (const wchar_t*)&buf[filename_wsize]);
#else
return fopen(filename, mode);
#endif
}
// We should in theory be using fseeko()/ftello() with off_t and _fseeki64()/_ftelli64() with __int64, waiting for the PR that does that in a very portable pre-C++11 zero-warnings way.
bool ImFileClose(ImFileHandle f) { return fclose(f) == 0; }
ImU64 ImFileGetSize(ImFileHandle f) { long off = 0, sz = 0; return ((off = ftell(f)) != -1 && !fseek(f, 0, SEEK_END) && (sz = ftell(f)) != -1 && !fseek(f, off, SEEK_SET)) ? (ImU64)sz : (ImU64)-1; }
ImU64 ImFileRead(void* data, ImU64 sz, ImU64 count, ImFileHandle f) { return fread(data, (size_t)sz, (size_t)count, f); }
ImU64 ImFileWrite(const void* data, ImU64 sz, ImU64 count, ImFileHandle f) { return fwrite(data, (size_t)sz, (size_t)count, f); }
#endif // #ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
// Helper: Load file content into memory
// Memory allocated with IM_ALLOC(), must be freed by user using IM_FREE() == ImGui::MemFree()
// This can't really be used with "rt" because fseek size won't match read size.
void* ImFileLoadToMemory(const char* filename, const char* mode, size_t* out_file_size, int padding_bytes)
{
IM_ASSERT(filename && mode);
if (out_file_size)
*out_file_size = 0;
ImFileHandle f;
if ((f = ImFileOpen(filename, mode)) == NULL)
return NULL;
size_t file_size = (size_t)ImFileGetSize(f);
if (file_size == (size_t)-1)
{
ImFileClose(f);
return NULL;
}
void* file_data = IM_ALLOC(file_size + padding_bytes);
if (file_data == NULL)
{
ImFileClose(f);
return NULL;
}
if (ImFileRead(file_data, 1, file_size, f) != file_size)
{
ImFileClose(f);
IM_FREE(file_data);
return NULL;
}
if (padding_bytes > 0)
memset((void*)(((char*)file_data) + file_size), 0, (size_t)padding_bytes);
ImFileClose(f);
if (out_file_size)
*out_file_size = file_size;
return file_data;
}
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
//-----------------------------------------------------------------------------
IM_MSVC_RUNTIME_CHECKS_OFF
// Convert UTF-8 to 32-bit character, process single character input.
// A nearly-branchless UTF-8 decoder, based on work of Christopher Wellons (https://github.com/skeeto/branchless-utf8).
// We handle UTF-8 decoding error by skipping forward.
int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end)
{
static const char lengths[32] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 3, 3, 4, 0 };
static const int masks[] = { 0x00, 0x7f, 0x1f, 0x0f, 0x07 };
static const uint32_t mins[] = { 0x400000, 0, 0x80, 0x800, 0x10000 };
static const int shiftc[] = { 0, 18, 12, 6, 0 };
static const int shifte[] = { 0, 6, 4, 2, 0 };
int len = lengths[*(const unsigned char*)in_text >> 3];
int wanted = len + (len ? 0 : 1);
if (in_text_end == NULL)
in_text_end = in_text + wanted; // Max length, nulls will be taken into account.
// Copy at most 'len' bytes, stop copying at 0 or past in_text_end. Branch predictor does a good job here,
// so it is fast even with excessive branching.
unsigned char s[4];
s[0] = in_text + 0 < in_text_end ? in_text[0] : 0;
s[1] = in_text + 1 < in_text_end ? in_text[1] : 0;
s[2] = in_text + 2 < in_text_end ? in_text[2] : 0;
s[3] = in_text + 3 < in_text_end ? in_text[3] : 0;
// Assume a four-byte character and load four bytes. Unused bits are shifted out.
*out_char = (uint32_t)(s[0] & masks[len]) << 18;
*out_char |= (uint32_t)(s[1] & 0x3f) << 12;
*out_char |= (uint32_t)(s[2] & 0x3f) << 6;
*out_char |= (uint32_t)(s[3] & 0x3f) << 0;
*out_char >>= shiftc[len];
// Accumulate the various error conditions.
int e = 0;
e = (*out_char < mins[len]) << 6; // non-canonical encoding
e |= ((*out_char >> 11) == 0x1b) << 7; // surrogate half?
e |= (*out_char > IM_UNICODE_CODEPOINT_MAX) << 8; // out of range?
e |= (s[1] & 0xc0) >> 2;
e |= (s[2] & 0xc0) >> 4;
e |= (s[3] ) >> 6;
e ^= 0x2a; // top two bits of each tail byte correct?
e >>= shifte[len];
if (e)
{
// No bytes are consumed when *in_text == 0 || in_text == in_text_end.
// One byte is consumed in case of invalid first byte of in_text.
// All available bytes (at most `len` bytes) are consumed on incomplete/invalid second to last bytes.
// Invalid or incomplete input may consume less bytes than wanted, therefore every byte has to be inspected in s.
wanted = ImMin(wanted, !!s[0] + !!s[1] + !!s[2] + !!s[3]);
*out_char = IM_UNICODE_CODEPOINT_INVALID;
}
return wanted;
}
int ImTextStrFromUtf8(ImWchar* buf, int buf_size, const char* in_text, const char* in_text_end, const char** in_text_remaining)
{
ImWchar* buf_out = buf;
ImWchar* buf_end = buf + buf_size;
while (buf_out < buf_end - 1 && (!in_text_end || in_text < in_text_end) && *in_text)
{
unsigned int c;
in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
*buf_out++ = (ImWchar)c;
}
*buf_out = 0;
if (in_text_remaining)
*in_text_remaining = in_text;
return (int)(buf_out - buf);
}
int ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end)
{
int char_count = 0;
while ((!in_text_end || in_text < in_text_end) && *in_text)
{
unsigned int c;
in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
char_count++;
}
return char_count;
}
// Based on stb_to_utf8() from github.com/nothings/stb/
static inline int ImTextCharToUtf8_inline(char* buf, int buf_size, unsigned int c)
{
if (c < 0x80)
{
buf[0] = (char)c;
return 1;
}
if (c < 0x800)
{
if (buf_size < 2) return 0;
buf[0] = (char)(0xc0 + (c >> 6));
buf[1] = (char)(0x80 + (c & 0x3f));
return 2;
}
if (c < 0x10000)
{
if (buf_size < 3) return 0;
buf[0] = (char)(0xe0 + (c >> 12));
buf[1] = (char)(0x80 + ((c >> 6) & 0x3f));
buf[2] = (char)(0x80 + ((c ) & 0x3f));
return 3;
}
if (c <= 0x10FFFF)
{
if (buf_size < 4) return 0;
buf[0] = (char)(0xf0 + (c >> 18));
buf[1] = (char)(0x80 + ((c >> 12) & 0x3f));
buf[2] = (char)(0x80 + ((c >> 6) & 0x3f));
buf[3] = (char)(0x80 + ((c ) & 0x3f));
return 4;
}
// Invalid code point, the max unicode is 0x10FFFF
return 0;
}
const char* ImTextCharToUtf8(char out_buf[5], unsigned int c)
{
int count = ImTextCharToUtf8_inline(out_buf, 5, c);
out_buf[count] = 0;
return out_buf;
}
// Not optimal but we very rarely use this function.
int ImTextCountUtf8BytesFromChar(const char* in_text, const char* in_text_end)
{
unsigned int unused = 0;
return ImTextCharFromUtf8(&unused, in_text, in_text_end);
}
static inline int ImTextCountUtf8BytesFromChar(unsigned int c)
{
if (c < 0x80) return 1;
if (c < 0x800) return 2;
if (c < 0x10000) return 3;
if (c <= 0x10FFFF) return 4;
return 3;
}
int ImTextStrToUtf8(char* out_buf, int out_buf_size, const ImWchar* in_text, const ImWchar* in_text_end)
{
char* buf_p = out_buf;
const char* buf_end = out_buf + out_buf_size;
while (buf_p < buf_end - 1 && (!in_text_end || in_text < in_text_end) && *in_text)
{
unsigned int c = (unsigned int)(*in_text++);
if (c < 0x80)
*buf_p++ = (char)c;
else
buf_p += ImTextCharToUtf8_inline(buf_p, (int)(buf_end - buf_p - 1), c);
}
*buf_p = 0;
return (int)(buf_p - out_buf);
}
int ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end)
{
int bytes_count = 0;
while ((!in_text_end || in_text < in_text_end) && *in_text)
{
unsigned int c = (unsigned int)(*in_text++);
if (c < 0x80)
bytes_count++;
else
bytes_count += ImTextCountUtf8BytesFromChar(c);
}
return bytes_count;
}
IM_MSVC_RUNTIME_CHECKS_RESTORE
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (Color functions)
// Note: The Convert functions are early design which are not consistent with other API.
//-----------------------------------------------------------------------------
IMGUI_API ImU32 ImAlphaBlendColors(ImU32 col_a, ImU32 col_b)
{
float t = ((col_b >> IM_COL32_A_SHIFT) & 0xFF) / 255.f;
int r = ImLerp((int)(col_a >> IM_COL32_R_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_R_SHIFT) & 0xFF, t);
int g = ImLerp((int)(col_a >> IM_COL32_G_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_G_SHIFT) & 0xFF, t);
int b = ImLerp((int)(col_a >> IM_COL32_B_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_B_SHIFT) & 0xFF, t);
return IM_COL32(r, g, b, 0xFF);
}
ImVec4 ImGui::ColorConvertU32ToFloat4(ImU32 in)
{
float s = 1.0f / 255.0f;
return ImVec4(
((in >> IM_COL32_R_SHIFT) & 0xFF) * s,
((in >> IM_COL32_G_SHIFT) & 0xFF) * s,
((in >> IM_COL32_B_SHIFT) & 0xFF) * s,
((in >> IM_COL32_A_SHIFT) & 0xFF) * s);
}
ImU32 ImGui::ColorConvertFloat4ToU32(const ImVec4& in)
{
ImU32 out;
out = ((ImU32)IM_F32_TO_INT8_SAT(in.x)) << IM_COL32_R_SHIFT;
out |= ((ImU32)IM_F32_TO_INT8_SAT(in.y)) << IM_COL32_G_SHIFT;
out |= ((ImU32)IM_F32_TO_INT8_SAT(in.z)) << IM_COL32_B_SHIFT;
out |= ((ImU32)IM_F32_TO_INT8_SAT(in.w)) << IM_COL32_A_SHIFT;
return out;
}
// Convert rgb floats ([0-1],[0-1],[0-1]) to hsv floats ([0-1],[0-1],[0-1]), from Foley & van Dam p592
// Optimized http://lolengine.net/blog/2013/01/13/fast-rgb-to-hsv
void ImGui::ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v)
{
float K = 0.f;
if (g < b)
{
ImSwap(g, b);
K = -1.f;
}
if (r < g)
{
ImSwap(r, g);
K = -2.f / 6.f - K;
}
const float chroma = r - (g < b ? g : b);
out_h = ImFabs(K + (g - b) / (6.f * chroma + 1e-20f));
out_s = chroma / (r + 1e-20f);
out_v = r;
}
// Convert hsv floats ([0-1],[0-1],[0-1]) to rgb floats ([0-1],[0-1],[0-1]), from Foley & van Dam p593
// also http://en.wikipedia.org/wiki/HSL_and_HSV
void ImGui::ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b)
{
if (s == 0.0f)
{
// gray
out_r = out_g = out_b = v;
return;
}
h = ImFmod(h, 1.0f) / (60.0f / 360.0f);
int i = (int)h;
float f = h - (float)i;
float p = v * (1.0f - s);
float q = v * (1.0f - s * f);
float t = v * (1.0f - s * (1.0f - f));
switch (i)
{
case 0: out_r = v; out_g = t; out_b = p; break;
case 1: out_r = q; out_g = v; out_b = p; break;
case 2: out_r = p; out_g = v; out_b = t; break;
case 3: out_r = p; out_g = q; out_b = v; break;
case 4: out_r = t; out_g = p; out_b = v; break;
case 5: default: out_r = v; out_g = p; out_b = q; break;
}
}
//-----------------------------------------------------------------------------
// [SECTION] ImGuiStorage
// Helper: Key->value storage
//-----------------------------------------------------------------------------
// std::lower_bound but without the bullshit
static ImGuiStorage::ImGuiStoragePair* LowerBound(ImVector<ImGuiStorage::ImGuiStoragePair>& data, ImGuiID key)
{
ImGuiStorage::ImGuiStoragePair* first = data.Data;
ImGuiStorage::ImGuiStoragePair* last = data.Data + data.Size;
size_t count = (size_t)(last - first);
while (count > 0)
{
size_t count2 = count >> 1;
ImGuiStorage::ImGuiStoragePair* mid = first + count2;
if (mid->key < key)
{
first = ++mid;
count -= count2 + 1;
}
else
{
count = count2;
}
}
return first;
}
// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
void ImGuiStorage::BuildSortByKey()
{
struct StaticFunc
{
static int IMGUI_CDECL PairComparerByID(const void* lhs, const void* rhs)
{
// We can't just do a subtraction because qsort uses signed integers and subtracting our ID doesn't play well with that.
if (((const ImGuiStoragePair*)lhs)->key > ((const ImGuiStoragePair*)rhs)->key) return +1;
if (((const ImGuiStoragePair*)lhs)->key < ((const ImGuiStoragePair*)rhs)->key) return -1;
return 0;
}
};
ImQsort(Data.Data, (size_t)Data.Size, sizeof(ImGuiStoragePair), StaticFunc::PairComparerByID);
}
int ImGuiStorage::GetInt(ImGuiID key, int default_val) const
{
ImGuiStoragePair* it = LowerBound(const_cast<ImVector<ImGuiStoragePair>&>(Data), key);
if (it == Data.end() || it->key != key)
return default_val;
return it->val_i;
}
bool ImGuiStorage::GetBool(ImGuiID key, bool default_val) const
{
return GetInt(key, default_val ? 1 : 0) != 0;
}
float ImGuiStorage::GetFloat(ImGuiID key, float default_val) const
{
ImGuiStoragePair* it = LowerBound(const_cast<ImVector<ImGuiStoragePair>&>(Data), key);
if (it == Data.end() || it->key != key)
return default_val;
return it->val_f;
}
void* ImGuiStorage::GetVoidPtr(ImGuiID key) const
{
ImGuiStoragePair* it = LowerBound(const_cast<ImVector<ImGuiStoragePair>&>(Data), key);
if (it == Data.end() || it->key != key)
return NULL;
return it->val_p;
}
// References are only valid until a new value is added to the storage. Calling a Set***() function or a Get***Ref() function invalidates the pointer.
int* ImGuiStorage::GetIntRef(ImGuiID key, int default_val)
{
ImGuiStoragePair* it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
it = Data.insert(it, ImGuiStoragePair(key, default_val));
return &it->val_i;
}
bool* ImGuiStorage::GetBoolRef(ImGuiID key, bool default_val)
{
return (bool*)GetIntRef(key, default_val ? 1 : 0);
}
float* ImGuiStorage::GetFloatRef(ImGuiID key, float default_val)
{
ImGuiStoragePair* it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
it = Data.insert(it, ImGuiStoragePair(key, default_val));
return &it->val_f;
}
void** ImGuiStorage::GetVoidPtrRef(ImGuiID key, void* default_val)
{
ImGuiStoragePair* it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
it = Data.insert(it, ImGuiStoragePair(key, default_val));
return &it->val_p;
}
// FIXME-OPT: Need a way to reuse the result of lower_bound when doing GetInt()/SetInt() - not too bad because it only happens on explicit interaction (maximum one a frame)
void ImGuiStorage::SetInt(ImGuiID key, int val)
{
ImGuiStoragePair* it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
{
Data.insert(it, ImGuiStoragePair(key, val));
return;
}
it->val_i = val;
}
void ImGuiStorage::SetBool(ImGuiID key, bool val)
{
SetInt(key, val ? 1 : 0);
}
void ImGuiStorage::SetFloat(ImGuiID key, float val)
{
ImGuiStoragePair* it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
{
Data.insert(it, ImGuiStoragePair(key, val));
return;
}
it->val_f = val;
}
void ImGuiStorage::SetVoidPtr(ImGuiID key, void* val)
{
ImGuiStoragePair* it = LowerBound(Data, key);
if (it == Data.end() || it->key != key)
{
Data.insert(it, ImGuiStoragePair(key, val));
return;
}
it->val_p = val;
}
void ImGuiStorage::SetAllInt(int v)
{
for (int i = 0; i < Data.Size; i++)
Data[i].val_i = v;
}
//-----------------------------------------------------------------------------
// [SECTION] ImGuiTextFilter
//-----------------------------------------------------------------------------
// Helper: Parse and apply text filters. In format "aaaaa[,bbbb][,ccccc]"
ImGuiTextFilter::ImGuiTextFilter(const char* default_filter) //-V1077
{
InputBuf[0] = 0;
CountGrep = 0;
if (default_filter)
{
ImStrncpy(InputBuf, default_filter, IM_ARRAYSIZE(InputBuf));
Build();
}
}
bool ImGuiTextFilter::Draw(const char* label, float width)
{
if (width != 0.0f)
ImGui::SetNextItemWidth(width);
bool value_changed = ImGui::InputText(label, InputBuf, IM_ARRAYSIZE(InputBuf));
if (value_changed)
Build();
return value_changed;
}
void ImGuiTextFilter::ImGuiTextRange::split(char separator, ImVector<ImGuiTextRange>* out) const
{
out->resize(0);
const char* wb = b;
const char* we = wb;
while (we < e)
{
if (*we == separator)
{
out->push_back(ImGuiTextRange(wb, we));
wb = we + 1;
}
we++;
}
if (wb != we)
out->push_back(ImGuiTextRange(wb, we));
}
void ImGuiTextFilter::Build()
{
Filters.resize(0);
ImGuiTextRange input_range(InputBuf, InputBuf + strlen(InputBuf));
input_range.split(',', &Filters);
CountGrep = 0;
for (int i = 0; i != Filters.Size; i++)
{
ImGuiTextRange& f = Filters[i];
while (f.b < f.e && ImCharIsBlankA(f.b[0]))
f.b++;
while (f.e > f.b && ImCharIsBlankA(f.e[-1]))
f.e--;
if (f.empty())
continue;
if (Filters[i].b[0] != '-')
CountGrep += 1;
}
}
bool ImGuiTextFilter::PassFilter(const char* text, const char* text_end) const
{
if (Filters.empty())
return true;
if (text == NULL)
text = "";
for (int i = 0; i != Filters.Size; i++)
{
const ImGuiTextRange& f = Filters[i];
if (f.empty())
continue;
if (f.b[0] == '-')
{
// Subtract
if (ImStristr(text, text_end, f.b + 1, f.e) != NULL)
return false;
}
else
{
// Grep
if (ImStristr(text, text_end, f.b, f.e) != NULL)
return true;
}
}
// Implicit * grep
if (CountGrep == 0)
return true;
return false;
}
//-----------------------------------------------------------------------------
// [SECTION] ImGuiTextBuffer, ImGuiTextIndex
//-----------------------------------------------------------------------------
// On some platform vsnprintf() takes va_list by reference and modifies it.
// va_copy is the 'correct' way to copy a va_list but Visual Studio prior to 2013 doesn't have it.
#ifndef va_copy
#if defined(__GNUC__) || defined(__clang__)
#define va_copy(dest, src) __builtin_va_copy(dest, src)
#else
#define va_copy(dest, src) (dest = src)
#endif
#endif
char ImGuiTextBuffer::EmptyString[1] = { 0 };
void ImGuiTextBuffer::append(const char* str, const char* str_end)
{
int len = str_end ? (int)(str_end - str) : (int)strlen(str);
// Add zero-terminator the first time
const int write_off = (Buf.Size != 0) ? Buf.Size : 1;
const int needed_sz = write_off + len;
if (write_off + len >= Buf.Capacity)
{
int new_capacity = Buf.Capacity * 2;
Buf.reserve(needed_sz > new_capacity ? needed_sz : new_capacity);
}
Buf.resize(needed_sz);
memcpy(&Buf[write_off - 1], str, (size_t)len);
Buf[write_off - 1 + len] = 0;
}
void ImGuiTextBuffer::appendf(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
appendfv(fmt, args);
va_end(args);
}
// Helper: Text buffer for logging/accumulating text
void ImGuiTextBuffer::appendfv(const char* fmt, va_list args)
{
va_list args_copy;
va_copy(args_copy, args);
int len = ImFormatStringV(NULL, 0, fmt, args); // FIXME-OPT: could do a first pass write attempt, likely successful on first pass.
if (len <= 0)
{
va_end(args_copy);
return;
}
// Add zero-terminator the first time
const int write_off = (Buf.Size != 0) ? Buf.Size : 1;
const int needed_sz = write_off + len;
if (write_off + len >= Buf.Capacity)
{
int new_capacity = Buf.Capacity * 2;
Buf.reserve(needed_sz > new_capacity ? needed_sz : new_capacity);
}
Buf.resize(needed_sz);
ImFormatStringV(&Buf[write_off - 1], (size_t)len + 1, fmt, args_copy);
va_end(args_copy);
}
void ImGuiTextIndex::append(const char* base, int old_size, int new_size)
{
IM_ASSERT(old_size >= 0 && new_size >= old_size && new_size >= EndOffset);
if (old_size == new_size)
return;
if (EndOffset == 0 || base[EndOffset - 1] == '\n')
LineOffsets.push_back(EndOffset);
const char* base_end = base + new_size;
for (const char* p = base + old_size; (p = (const char*)memchr(p, '\n', base_end - p)) != 0; )
if (++p < base_end) // Don't push a trailing offset on last \n
LineOffsets.push_back((int)(intptr_t)(p - base));
EndOffset = ImMax(EndOffset, new_size);
}
//-----------------------------------------------------------------------------
// [SECTION] ImGuiListClipper
// This is currently not as flexible/powerful as it should be and really confusing/spaghetti, mostly because we changed
// the API mid-way through development and support two ways to using the clipper, needs some rework (see TODO)
//-----------------------------------------------------------------------------
// FIXME-TABLE: This prevents us from using ImGuiListClipper _inside_ a table cell.
// The problem we have is that without a Begin/End scheme for rows using the clipper is ambiguous.
static bool GetSkipItemForListClipping()
{
ImGuiContext& g = *GImGui;
return (g.CurrentTable ? g.CurrentTable->HostSkipItems : g.CurrentWindow->SkipItems);
}
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Legacy helper to calculate coarse clipping of large list of evenly sized items.
// This legacy API is not ideal because it assumes we will return a single contiguous rectangle.
// Prefer using ImGuiListClipper which can returns non-contiguous ranges.
void ImGui::CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (g.LogEnabled)
{
// If logging is active, do not perform any clipping
*out_items_display_start = 0;
*out_items_display_end = items_count;
return;
}
if (GetSkipItemForListClipping())
{
*out_items_display_start = *out_items_display_end = 0;
return;
}
// We create the union of the ClipRect and the scoring rect which at worst should be 1 page away from ClipRect
// We don't include g.NavId's rectangle in there (unless g.NavJustMovedToId is set) because the rectangle enlargement can get costly.
ImRect rect = window->ClipRect;
if (g.NavMoveScoringItems)
rect.Add(g.NavScoringNoClipRect);
if (g.NavJustMovedToId && window->NavLastIds[0] == g.NavJustMovedToId)
rect.Add(WindowRectRelToAbs(window, window->NavRectRel[0])); // Could store and use NavJustMovedToRectRel
const ImVec2 pos = window->DC.CursorPos;
int start = (int)((rect.Min.y - pos.y) / items_height);
int end = (int)((rect.Max.y - pos.y) / items_height);
// When performing a navigation request, ensure we have one item extra in the direction we are moving to
// FIXME: Verify this works with tabbing
const bool is_nav_request = (g.NavMoveScoringItems && g.NavWindow && g.NavWindow->RootWindowForNav == window->RootWindowForNav);
if (is_nav_request && g.NavMoveClipDir == ImGuiDir_Up)
start--;
if (is_nav_request && g.NavMoveClipDir == ImGuiDir_Down)
end++;
start = ImClamp(start, 0, items_count);
end = ImClamp(end + 1, start, items_count);
*out_items_display_start = start;
*out_items_display_end = end;
}
#endif
static void ImGuiListClipper_SortAndFuseRanges(ImVector<ImGuiListClipperRange>& ranges, int offset = 0)
{
if (ranges.Size - offset <= 1)
return;
// Helper to order ranges and fuse them together if possible (bubble sort is fine as we are only sorting 2-3 entries)
for (int sort_end = ranges.Size - offset - 1; sort_end > 0; --sort_end)
for (int i = offset; i < sort_end + offset; ++i)
if (ranges[i].Min > ranges[i + 1].Min)
ImSwap(ranges[i], ranges[i + 1]);
// Now fuse ranges together as much as possible.
for (int i = 1 + offset; i < ranges.Size; i++)
{
IM_ASSERT(!ranges[i].PosToIndexConvert && !ranges[i - 1].PosToIndexConvert);
if (ranges[i - 1].Max < ranges[i].Min)
continue;
ranges[i - 1].Min = ImMin(ranges[i - 1].Min, ranges[i].Min);
ranges[i - 1].Max = ImMax(ranges[i - 1].Max, ranges[i].Max);
ranges.erase(ranges.Data + i);
i--;
}
}
static void ImGuiListClipper_SeekCursorAndSetupPrevLine(float pos_y, float line_height)
{
// Set cursor position and a few other things so that SetScrollHereY() and Columns() can work when seeking cursor.
// FIXME: It is problematic that we have to do that here, because custom/equivalent end-user code would stumble on the same issue.
// The clipper should probably have a final step to display the last item in a regular manner, maybe with an opt-out flag for data sets which may have costly seek?
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
float off_y = pos_y - window->DC.CursorPos.y;
window->DC.CursorPos.y = pos_y;
window->DC.CursorMaxPos.y = ImMax(window->DC.CursorMaxPos.y, pos_y - g.Style.ItemSpacing.y);
window->DC.CursorPosPrevLine.y = window->DC.CursorPos.y - line_height; // Setting those fields so that SetScrollHereY() can properly function after the end of our clipper usage.
window->DC.PrevLineSize.y = (line_height - g.Style.ItemSpacing.y); // If we end up needing more accurate data (to e.g. use SameLine) we may as well make the clipper have a fourth step to let user process and display the last item in their list.
if (ImGuiOldColumns* columns = window->DC.CurrentColumns)
columns->LineMinY = window->DC.CursorPos.y; // Setting this so that cell Y position are set properly
if (ImGuiTable* table = g.CurrentTable)
{
if (table->IsInsideRow)
ImGui::TableEndRow(table);
table->RowPosY2 = window->DC.CursorPos.y;
const int row_increase = (int)((off_y / line_height) + 0.5f);
//table->CurrentRow += row_increase; // Can't do without fixing TableEndRow()
table->RowBgColorCounter += row_increase;
}
}
static void ImGuiListClipper_SeekCursorForItem(ImGuiListClipper* clipper, int item_n)
{
// StartPosY starts from ItemsFrozen hence the subtraction
// Perform the add and multiply with double to allow seeking through larger ranges
ImGuiListClipperData* data = (ImGuiListClipperData*)clipper->TempData;
float pos_y = (float)((double)clipper->StartPosY + data->LossynessOffset + (double)(item_n - data->ItemsFrozen) * clipper->ItemsHeight);
ImGuiListClipper_SeekCursorAndSetupPrevLine(pos_y, clipper->ItemsHeight);
}
ImGuiListClipper::ImGuiListClipper()
{
memset(this, 0, sizeof(*this));
Ctx = ImGui::GetCurrentContext();
IM_ASSERT(Ctx != NULL);
ItemsCount = -1;
}
ImGuiListClipper::~ImGuiListClipper()
{
End();
}
void ImGuiListClipper::Begin(int items_count, float items_height)
{
ImGuiContext& g = *Ctx;
ImGuiWindow* window = g.CurrentWindow;
IMGUI_DEBUG_LOG_CLIPPER("Clipper: Begin(%d,%.2f) in '%s'\n", items_count, items_height, window->Name);
if (ImGuiTable* table = g.CurrentTable)
if (table->IsInsideRow)
ImGui::TableEndRow(table);
StartPosY = window->DC.CursorPos.y;
ItemsHeight = items_height;
ItemsCount = items_count;
DisplayStart = -1;
DisplayEnd = 0;
// Acquire temporary buffer
if (++g.ClipperTempDataStacked > g.ClipperTempData.Size)
g.ClipperTempData.resize(g.ClipperTempDataStacked, ImGuiListClipperData());
ImGuiListClipperData* data = &g.ClipperTempData[g.ClipperTempDataStacked - 1];
data->Reset(this);
data->LossynessOffset = window->DC.CursorStartPosLossyness.y;
TempData = data;
}
void ImGuiListClipper::End()
{
ImGuiContext& g = *Ctx;
if (ImGuiListClipperData* data = (ImGuiListClipperData*)TempData)
{
// In theory here we should assert that we are already at the right position, but it seems saner to just seek at the end and not assert/crash the user.
IMGUI_DEBUG_LOG_CLIPPER("Clipper: End() in '%s'\n", g.CurrentWindow->Name);
if (ItemsCount >= 0 && ItemsCount < INT_MAX && DisplayStart >= 0)
ImGuiListClipper_SeekCursorForItem(this, ItemsCount);
// Restore temporary buffer and fix back pointers which may be invalidated when nesting
IM_ASSERT(data->ListClipper == this);
data->StepNo = data->Ranges.Size;
if (--g.ClipperTempDataStacked > 0)
{
data = &g.ClipperTempData[g.ClipperTempDataStacked - 1];
data->ListClipper->TempData = data;
}
TempData = NULL;
}
ItemsCount = -1;
}
void ImGuiListClipper::ForceDisplayRangeByIndices(int item_min, int item_max)
{
ImGuiListClipperData* data = (ImGuiListClipperData*)TempData;
IM_ASSERT(DisplayStart < 0); // Only allowed after Begin() and if there has not been a specified range yet.
IM_ASSERT(item_min <= item_max);
if (item_min < item_max)
data->Ranges.push_back(ImGuiListClipperRange::FromIndices(item_min, item_max));
}
static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
{
ImGuiContext& g = *clipper->Ctx;
ImGuiWindow* window = g.CurrentWindow;
ImGuiListClipperData* data = (ImGuiListClipperData*)clipper->TempData;
IM_ASSERT(data != NULL && "Called ImGuiListClipper::Step() too many times, or before ImGuiListClipper::Begin() ?");
ImGuiTable* table = g.CurrentTable;
if (table && table->IsInsideRow)
ImGui::TableEndRow(table);
// No items
if (clipper->ItemsCount == 0 || GetSkipItemForListClipping())
return false;
// While we are in frozen row state, keep displaying items one by one, unclipped
// FIXME: Could be stored as a table-agnostic state.
if (data->StepNo == 0 && table != NULL && !table->IsUnfrozenRows)
{
clipper->DisplayStart = data->ItemsFrozen;
clipper->DisplayEnd = ImMin(data->ItemsFrozen + 1, clipper->ItemsCount);
if (clipper->DisplayStart < clipper->DisplayEnd)
data->ItemsFrozen++;
return true;
}
// Step 0: Let you process the first element (regardless of it being visible or not, so we can measure the element height)
bool calc_clipping = false;
if (data->StepNo == 0)
{
clipper->StartPosY = window->DC.CursorPos.y;
if (clipper->ItemsHeight <= 0.0f)
{
// Submit the first item (or range) so we can measure its height (generally the first range is 0..1)
data->Ranges.push_front(ImGuiListClipperRange::FromIndices(data->ItemsFrozen, data->ItemsFrozen + 1));
clipper->DisplayStart = ImMax(data->Ranges[0].Min, data->ItemsFrozen);
clipper->DisplayEnd = ImMin(data->Ranges[0].Max, clipper->ItemsCount);
data->StepNo = 1;
return true;
}
calc_clipping = true; // If on the first step with known item height, calculate clipping.
}
// Step 1: Let the clipper infer height from first range
if (clipper->ItemsHeight <= 0.0f)
{
IM_ASSERT(data->StepNo == 1);
if (table)
IM_ASSERT(table->RowPosY1 == clipper->StartPosY && table->RowPosY2 == window->DC.CursorPos.y);
clipper->ItemsHeight = (window->DC.CursorPos.y - clipper->StartPosY) / (float)(clipper->DisplayEnd - clipper->DisplayStart);
bool affected_by_floating_point_precision = ImIsFloatAboveGuaranteedIntegerPrecision(clipper->StartPosY) || ImIsFloatAboveGuaranteedIntegerPrecision(window->DC.CursorPos.y);
if (affected_by_floating_point_precision)
clipper->ItemsHeight = window->DC.PrevLineSize.y + g.Style.ItemSpacing.y; // FIXME: Technically wouldn't allow multi-line entries.
IM_ASSERT(clipper->ItemsHeight > 0.0f && "Unable to calculate item height! First item hasn't moved the cursor vertically!");
calc_clipping = true; // If item height had to be calculated, calculate clipping afterwards.
}
// Step 0 or 1: Calculate the actual ranges of visible elements.
const int already_submitted = clipper->DisplayEnd;
if (calc_clipping)
{
if (g.LogEnabled)
{
// If logging is active, do not perform any clipping
data->Ranges.push_back(ImGuiListClipperRange::FromIndices(0, clipper->ItemsCount));
}
else
{
// Add range selected to be included for navigation
const bool is_nav_request = (g.NavMoveScoringItems && g.NavWindow && g.NavWindow->RootWindowForNav == window->RootWindowForNav);
if (is_nav_request)
data->Ranges.push_back(ImGuiListClipperRange::FromPositions(g.NavScoringNoClipRect.Min.y, g.NavScoringNoClipRect.Max.y, 0, 0));
if (is_nav_request && (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) && g.NavTabbingDir == -1)
data->Ranges.push_back(ImGuiListClipperRange::FromIndices(clipper->ItemsCount - 1, clipper->ItemsCount));
// Add focused/active item
ImRect nav_rect_abs = ImGui::WindowRectRelToAbs(window, window->NavRectRel[0]);
if (g.NavId != 0 && window->NavLastIds[0] == g.NavId)
data->Ranges.push_back(ImGuiListClipperRange::FromPositions(nav_rect_abs.Min.y, nav_rect_abs.Max.y, 0, 0));
// Add visible range
const int off_min = (is_nav_request && g.NavMoveClipDir == ImGuiDir_Up) ? -1 : 0;
const int off_max = (is_nav_request && g.NavMoveClipDir == ImGuiDir_Down) ? 1 : 0;
data->Ranges.push_back(ImGuiListClipperRange::FromPositions(window->ClipRect.Min.y, window->ClipRect.Max.y, off_min, off_max));
}
// Convert position ranges to item index ranges
// - Very important: when a starting position is after our maximum item, we set Min to (ItemsCount - 1). This allows us to handle most forms of wrapping.
// - Due to how Selectable extra padding they tend to be "unaligned" with exact unit in the item list,
// which with the flooring/ceiling tend to lead to 2 items instead of one being submitted.
for (int i = 0; i < data->Ranges.Size; i++)
if (data->Ranges[i].PosToIndexConvert)
{
int m1 = (int)(((double)data->Ranges[i].Min - window->DC.CursorPos.y - data->LossynessOffset) / clipper->ItemsHeight);
int m2 = (int)((((double)data->Ranges[i].Max - window->DC.CursorPos.y - data->LossynessOffset) / clipper->ItemsHeight) + 0.999999f);
data->Ranges[i].Min = ImClamp(already_submitted + m1 + data->Ranges[i].PosToIndexOffsetMin, already_submitted, clipper->ItemsCount - 1);
data->Ranges[i].Max = ImClamp(already_submitted + m2 + data->Ranges[i].PosToIndexOffsetMax, data->Ranges[i].Min + 1, clipper->ItemsCount);
data->Ranges[i].PosToIndexConvert = false;
}
ImGuiListClipper_SortAndFuseRanges(data->Ranges, data->StepNo);
}
// Step 0+ (if item height is given in advance) or 1+: Display the next range in line.
if (data->StepNo < data->Ranges.Size)
{
clipper->DisplayStart = ImMax(data->Ranges[data->StepNo].Min, already_submitted);
clipper->DisplayEnd = ImMin(data->Ranges[data->StepNo].Max, clipper->ItemsCount);
if (clipper->DisplayStart > already_submitted) //-V1051
ImGuiListClipper_SeekCursorForItem(clipper, clipper->DisplayStart);
data->StepNo++;
return true;
}
// After the last step: Let the clipper validate that we have reached the expected Y position (corresponding to element DisplayEnd),
// Advance the cursor to the end of the list and then returns 'false' to end the loop.
if (clipper->ItemsCount < INT_MAX)
ImGuiListClipper_SeekCursorForItem(clipper, clipper->ItemsCount);
return false;
}
bool ImGuiListClipper::Step()
{
ImGuiContext& g = *Ctx;
bool need_items_height = (ItemsHeight <= 0.0f);
bool ret = ImGuiListClipper_StepInternal(this);
if (ret && (DisplayStart == DisplayEnd))
ret = false;
if (g.CurrentTable && g.CurrentTable->IsUnfrozenRows == false)
IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): inside frozen table row.\n");
if (need_items_height && ItemsHeight > 0.0f)
IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): computed ItemsHeight: %.2f.\n", ItemsHeight);
if (ret)
{
IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): display %d to %d.\n", DisplayStart, DisplayEnd);
}
else
{
IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): End.\n");
End();
}
return ret;
}
//-----------------------------------------------------------------------------
// [SECTION] STYLING
//-----------------------------------------------------------------------------
ImGuiStyle& ImGui::GetStyle()
{
IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
return GImGui->Style;
}
ImU32 ImGui::GetColorU32(ImGuiCol idx, float alpha_mul)
{
ImGuiStyle& style = GImGui->Style;
ImVec4 c = style.Colors[idx];
c.w *= style.Alpha * alpha_mul;
return ColorConvertFloat4ToU32(c);
}
ImU32 ImGui::GetColorU32(const ImVec4& col)
{
ImGuiStyle& style = GImGui->Style;
ImVec4 c = col;
c.w *= style.Alpha;
return ColorConvertFloat4ToU32(c);
}
const ImVec4& ImGui::GetStyleColorVec4(ImGuiCol idx)
{
ImGuiStyle& style = GImGui->Style;
return style.Colors[idx];
}
ImU32 ImGui::GetColorU32(ImU32 col)
{
ImGuiStyle& style = GImGui->Style;
if (style.Alpha >= 1.0f)
return col;
ImU32 a = (col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT;
a = (ImU32)(a * style.Alpha); // We don't need to clamp 0..255 because Style.Alpha is in 0..1 range.
return (col & ~IM_COL32_A_MASK) | (a << IM_COL32_A_SHIFT);
}
// FIXME: This may incur a round-trip (if the end user got their data from a float4) but eventually we aim to store the in-flight colors as ImU32
void ImGui::PushStyleColor(ImGuiCol idx, ImU32 col)
{
ImGuiContext& g = *GImGui;
ImGuiColorMod backup;
backup.Col = idx;
backup.BackupValue = g.Style.Colors[idx];
g.ColorStack.push_back(backup);
g.Style.Colors[idx] = ColorConvertU32ToFloat4(col);
}
void ImGui::PushStyleColor(ImGuiCol idx, const ImVec4& col)
{
ImGuiContext& g = *GImGui;
ImGuiColorMod backup;
backup.Col = idx;
backup.BackupValue = g.Style.Colors[idx];
g.ColorStack.push_back(backup);
g.Style.Colors[idx] = col;
}
void ImGui::PopStyleColor(int count)
{
ImGuiContext& g = *GImGui;
if (g.ColorStack.Size < count)
{
IM_ASSERT_USER_ERROR(g.ColorStack.Size > count, "Calling PopStyleColor() too many times: stack underflow.");
count = g.ColorStack.Size;
}
while (count > 0)
{
ImGuiColorMod& backup = g.ColorStack.back();
g.Style.Colors[backup.Col] = backup.BackupValue;
g.ColorStack.pop_back();
count--;
}
}
static const ImGuiDataVarInfo GStyleVarInfo[] =
{
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, Alpha) }, // ImGuiStyleVar_Alpha
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, DisabledAlpha) }, // ImGuiStyleVar_DisabledAlpha
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowPadding) }, // ImGuiStyleVar_WindowPadding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowRounding) }, // ImGuiStyleVar_WindowRounding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowBorderSize) }, // ImGuiStyleVar_WindowBorderSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowMinSize) }, // ImGuiStyleVar_WindowMinSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowTitleAlign) }, // ImGuiStyleVar_WindowTitleAlign
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ChildRounding) }, // ImGuiStyleVar_ChildRounding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ChildBorderSize) }, // ImGuiStyleVar_ChildBorderSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, PopupRounding) }, // ImGuiStyleVar_PopupRounding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, PopupBorderSize) }, // ImGuiStyleVar_PopupBorderSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, FramePadding) }, // ImGuiStyleVar_FramePadding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, FrameRounding) }, // ImGuiStyleVar_FrameRounding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, FrameBorderSize) }, // ImGuiStyleVar_FrameBorderSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, ItemSpacing) }, // ImGuiStyleVar_ItemSpacing
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, ItemInnerSpacing) }, // ImGuiStyleVar_ItemInnerSpacing
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, IndentSpacing) }, // ImGuiStyleVar_IndentSpacing
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, CellPadding) }, // ImGuiStyleVar_CellPadding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ScrollbarSize) }, // ImGuiStyleVar_ScrollbarSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ScrollbarRounding) }, // ImGuiStyleVar_ScrollbarRounding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, GrabMinSize) }, // ImGuiStyleVar_GrabMinSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, GrabRounding) }, // ImGuiStyleVar_GrabRounding
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, TabRounding) }, // ImGuiStyleVar_TabRounding
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, ButtonTextAlign) }, // ImGuiStyleVar_ButtonTextAlign
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, SelectableTextAlign) }, // ImGuiStyleVar_SelectableTextAlign
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, SeparatorTextBorderSize) },// ImGuiStyleVar_SeparatorTextBorderSize
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, SeparatorTextAlign) }, // ImGuiStyleVar_SeparatorTextAlign
{ ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, SeparatorTextPadding) }, // ImGuiStyleVar_SeparatorTextPadding
};
const ImGuiDataVarInfo* ImGui::GetStyleVarInfo(ImGuiStyleVar idx)
{
IM_ASSERT(idx >= 0 && idx < ImGuiStyleVar_COUNT);
IM_STATIC_ASSERT(IM_ARRAYSIZE(GStyleVarInfo) == ImGuiStyleVar_COUNT);
return &GStyleVarInfo[idx];
}
void ImGui::PushStyleVar(ImGuiStyleVar idx, float val)
{
ImGuiContext& g = *GImGui;
const ImGuiDataVarInfo* var_info = GetStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_Float && var_info->Count == 1)
{
float* pvar = (float*)var_info->GetVarPtr(&g.Style);
g.StyleVarStack.push_back(ImGuiStyleMod(idx, *pvar));
*pvar = val;
return;
}
IM_ASSERT_USER_ERROR(0, "Called PushStyleVar() variant with wrong type!");
}
void ImGui::PushStyleVar(ImGuiStyleVar idx, const ImVec2& val)
{
ImGuiContext& g = *GImGui;
const ImGuiDataVarInfo* var_info = GetStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_Float && var_info->Count == 2)
{
ImVec2* pvar = (ImVec2*)var_info->GetVarPtr(&g.Style);
g.StyleVarStack.push_back(ImGuiStyleMod(idx, *pvar));
*pvar = val;
return;
}
IM_ASSERT_USER_ERROR(0, "Called PushStyleVar() variant with wrong type!");
}
void ImGui::PopStyleVar(int count)
{
ImGuiContext& g = *GImGui;
if (g.StyleVarStack.Size < count)
{
IM_ASSERT_USER_ERROR(g.StyleVarStack.Size > count, "Calling PopStyleVar() too many times: stack underflow.");
count = g.StyleVarStack.Size;
}
while (count > 0)
{
// We avoid a generic memcpy(data, &backup.Backup.., GDataTypeSize[info->Type] * info->Count), the overhead in Debug is not worth it.
ImGuiStyleMod& backup = g.StyleVarStack.back();
const ImGuiDataVarInfo* info = GetStyleVarInfo(backup.VarIdx);
void* data = info->GetVarPtr(&g.Style);
if (info->Type == ImGuiDataType_Float && info->Count == 1) { ((float*)data)[0] = backup.BackupFloat[0]; }
else if (info->Type == ImGuiDataType_Float && info->Count == 2) { ((float*)data)[0] = backup.BackupFloat[0]; ((float*)data)[1] = backup.BackupFloat[1]; }
g.StyleVarStack.pop_back();
count--;
}
}
const char* ImGui::GetStyleColorName(ImGuiCol idx)
{
// Create switch-case from enum with regexp: ImGuiCol_{.*}, --> case ImGuiCol_\1: return "\1";
switch (idx)
{
case ImGuiCol_Text: return "Text";
case ImGuiCol_TextDisabled: return "TextDisabled";
case ImGuiCol_WindowBg: return "WindowBg";
case ImGuiCol_ChildBg: return "ChildBg";
case ImGuiCol_PopupBg: return "PopupBg";
case ImGuiCol_Border: return "Border";
case ImGuiCol_BorderShadow: return "BorderShadow";
case ImGuiCol_FrameBg: return "FrameBg";
case ImGuiCol_FrameBgHovered: return "FrameBgHovered";
case ImGuiCol_FrameBgActive: return "FrameBgActive";
case ImGuiCol_TitleBg: return "TitleBg";
case ImGuiCol_TitleBgActive: return "TitleBgActive";
case ImGuiCol_TitleBgCollapsed: return "TitleBgCollapsed";
case ImGuiCol_MenuBarBg: return "MenuBarBg";
case ImGuiCol_ScrollbarBg: return "ScrollbarBg";
case ImGuiCol_ScrollbarGrab: return "ScrollbarGrab";
case ImGuiCol_ScrollbarGrabHovered: return "ScrollbarGrabHovered";
case ImGuiCol_ScrollbarGrabActive: return "ScrollbarGrabActive";
case ImGuiCol_CheckMark: return "CheckMark";
case ImGuiCol_SliderGrab: return "SliderGrab";
case ImGuiCol_SliderGrabActive: return "SliderGrabActive";
case ImGuiCol_Button: return "Button";
case ImGuiCol_ButtonHovered: return "ButtonHovered";
case ImGuiCol_ButtonActive: return "ButtonActive";
case ImGuiCol_Header: return "Header";
case ImGuiCol_HeaderHovered: return "HeaderHovered";
case ImGuiCol_HeaderActive: return "HeaderActive";
case ImGuiCol_Separator: return "Separator";
case ImGuiCol_SeparatorHovered: return "SeparatorHovered";
case ImGuiCol_SeparatorActive: return "SeparatorActive";
case ImGuiCol_ResizeGrip: return "ResizeGrip";
case ImGuiCol_ResizeGripHovered: return "ResizeGripHovered";
case ImGuiCol_ResizeGripActive: return "ResizeGripActive";
case ImGuiCol_Tab: return "Tab";
case ImGuiCol_TabHovered: return "TabHovered";
case ImGuiCol_TabActive: return "TabActive";
case ImGuiCol_TabUnfocused: return "TabUnfocused";
case ImGuiCol_TabUnfocusedActive: return "TabUnfocusedActive";
case ImGuiCol_PlotLines: return "PlotLines";
case ImGuiCol_PlotLinesHovered: return "PlotLinesHovered";
case ImGuiCol_PlotHistogram: return "PlotHistogram";
case ImGuiCol_PlotHistogramHovered: return "PlotHistogramHovered";
case ImGuiCol_TableHeaderBg: return "TableHeaderBg";
case ImGuiCol_TableBorderStrong: return "TableBorderStrong";
case ImGuiCol_TableBorderLight: return "TableBorderLight";
case ImGuiCol_TableRowBg: return "TableRowBg";
case ImGuiCol_TableRowBgAlt: return "TableRowBgAlt";
case ImGuiCol_TextSelectedBg: return "TextSelectedBg";
case ImGuiCol_DragDropTarget: return "DragDropTarget";
case ImGuiCol_NavHighlight: return "NavHighlight";
case ImGuiCol_NavWindowingHighlight: return "NavWindowingHighlight";
case ImGuiCol_NavWindowingDimBg: return "NavWindowingDimBg";
case ImGuiCol_ModalWindowDimBg: return "ModalWindowDimBg";
}
IM_ASSERT(0);
return "Unknown";
}
//-----------------------------------------------------------------------------
// [SECTION] RENDER HELPERS
// Some of those (internal) functions are currently quite a legacy mess - their signature and behavior will change,
// we need a nicer separation between low-level functions and high-level functions relying on the ImGui context.
// Also see imgui_draw.cpp for some more which have been reworked to not rely on ImGui:: context.
//-----------------------------------------------------------------------------
const char* ImGui::FindRenderedTextEnd(const char* text, const char* text_end)
{
const char* text_display_end = text;
if (!text_end)
text_end = (const char*)-1;
while (text_display_end < text_end && *text_display_end != '\0' && (text_display_end[0] != '#' || text_display_end[1] != '#'))
text_display_end++;
return text_display_end;
}
// Internal ImGui functions to render text
// RenderText***() functions calls ImDrawList::AddText() calls ImBitmapFont::RenderText()
void ImGui::RenderText(ImVec2 pos, const char* text, const char* text_end, bool hide_text_after_hash)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// Hide anything after a '##' string
const char* text_display_end;
if (hide_text_after_hash)
{
text_display_end = FindRenderedTextEnd(text, text_end);
}
else
{
if (!text_end)
text_end = text + strlen(text); // FIXME-OPT
text_display_end = text_end;
}
if (text != text_display_end)
{
window->DrawList->AddText(g.Font, g.FontSize, pos, GetColorU32(ImGuiCol_Text), text, text_display_end);
if (g.LogEnabled)
LogRenderedText(&pos, text, text_display_end);
}
}
void ImGui::RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end, float wrap_width)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (!text_end)
text_end = text + strlen(text); // FIXME-OPT
if (text != text_end)
{
window->DrawList->AddText(g.Font, g.FontSize, pos, GetColorU32(ImGuiCol_Text), text, text_end, wrap_width);
if (g.LogEnabled)
LogRenderedText(&pos, text, text_end);
}
}
// Default clip_rect uses (pos_min,pos_max)
// Handle clipping on CPU immediately (vs typically let the GPU clip the triangles that are overlapping the clipping rectangle edges)
void ImGui::RenderTextClippedEx(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_display_end, const ImVec2* text_size_if_known, const ImVec2& align, const ImRect* clip_rect)
{
// Perform CPU side clipping for single clipped element to avoid using scissor state
ImVec2 pos = pos_min;
const ImVec2 text_size = text_size_if_known ? *text_size_if_known : CalcTextSize(text, text_display_end, false, 0.0f);
const ImVec2* clip_min = clip_rect ? &clip_rect->Min : &pos_min;
const ImVec2* clip_max = clip_rect ? &clip_rect->Max : &pos_max;
bool need_clipping = (pos.x + text_size.x >= clip_max->x) || (pos.y + text_size.y >= clip_max->y);
if (clip_rect) // If we had no explicit clipping rectangle then pos==clip_min
need_clipping |= (pos.x < clip_min->x) || (pos.y < clip_min->y);
// Align whole block. We should defer that to the better rendering function when we'll have support for individual line alignment.
if (align.x > 0.0f) pos.x = ImMax(pos.x, pos.x + (pos_max.x - pos.x - text_size.x) * align.x);
if (align.y > 0.0f) pos.y = ImMax(pos.y, pos.y + (pos_max.y - pos.y - text_size.y) * align.y);
// Render
if (need_clipping)
{
ImVec4 fine_clip_rect(clip_min->x, clip_min->y, clip_max->x, clip_max->y);
draw_list->AddText(NULL, 0.0f, pos, GetColorU32(ImGuiCol_Text), text, text_display_end, 0.0f, &fine_clip_rect);
}
else
{
draw_list->AddText(NULL, 0.0f, pos, GetColorU32(ImGuiCol_Text), text, text_display_end, 0.0f, NULL);
}
}
void ImGui::RenderTextClipped(const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align, const ImRect* clip_rect)
{
// Hide anything after a '##' string
const char* text_display_end = FindRenderedTextEnd(text, text_end);
const int text_len = (int)(text_display_end - text);
if (text_len == 0)
return;
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
RenderTextClippedEx(window->DrawList, pos_min, pos_max, text, text_display_end, text_size_if_known, align, clip_rect);
if (g.LogEnabled)
LogRenderedText(&pos_min, text, text_display_end);
}
// Another overly complex function until we reorganize everything into a nice all-in-one helper.
// This is made more complex because we have dissociated the layout rectangle (pos_min..pos_max) which define _where_ the ellipsis is, from actual clipping of text and limit of the ellipsis display.
// This is because in the context of tabs we selectively hide part of the text when the Close Button appears, but we don't want the ellipsis to move.
void ImGui::RenderTextEllipsis(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, float clip_max_x, float ellipsis_max_x, const char* text, const char* text_end_full, const ImVec2* text_size_if_known)
{
ImGuiContext& g = *GImGui;
if (text_end_full == NULL)
text_end_full = FindRenderedTextEnd(text);
const ImVec2 text_size = text_size_if_known ? *text_size_if_known : CalcTextSize(text, text_end_full, false, 0.0f);
//draw_list->AddLine(ImVec2(pos_max.x, pos_min.y - 4), ImVec2(pos_max.x, pos_max.y + 4), IM_COL32(0, 0, 255, 255));
//draw_list->AddLine(ImVec2(ellipsis_max_x, pos_min.y-2), ImVec2(ellipsis_max_x, pos_max.y+2), IM_COL32(0, 255, 0, 255));
//draw_list->AddLine(ImVec2(clip_max_x, pos_min.y), ImVec2(clip_max_x, pos_max.y), IM_COL32(255, 0, 0, 255));
// FIXME: We could technically remove (last_glyph->AdvanceX - last_glyph->X1) from text_size.x here and save a few pixels.
if (text_size.x > pos_max.x - pos_min.x)
{
// Hello wo...
// | | |
// min max ellipsis_max
// <-> this is generally some padding value
const ImFont* font = draw_list->_Data->Font;
const float font_size = draw_list->_Data->FontSize;
const float font_scale = font_size / font->FontSize;
const char* text_end_ellipsis = NULL;
const float ellipsis_width = font->EllipsisWidth * font_scale;
// We can now claim the space between pos_max.x and ellipsis_max.x
const float text_avail_width = ImMax((ImMax(pos_max.x, ellipsis_max_x) - ellipsis_width) - pos_min.x, 1.0f);
float text_size_clipped_x = font->CalcTextSizeA(font_size, text_avail_width, 0.0f, text, text_end_full, &text_end_ellipsis).x;
if (text == text_end_ellipsis && text_end_ellipsis < text_end_full)
{
// Always display at least 1 character if there's no room for character + ellipsis
text_end_ellipsis = text + ImTextCountUtf8BytesFromChar(text, text_end_full);
text_size_clipped_x = font->CalcTextSizeA(font_size, FLT_MAX, 0.0f, text, text_end_ellipsis).x;
}
while (text_end_ellipsis > text && ImCharIsBlankA(text_end_ellipsis[-1]))
{
// Trim trailing space before ellipsis (FIXME: Supporting non-ascii blanks would be nice, for this we need a function to backtrack in UTF-8 text)
text_end_ellipsis--;
text_size_clipped_x -= font->CalcTextSizeA(font_size, FLT_MAX, 0.0f, text_end_ellipsis, text_end_ellipsis + 1).x; // Ascii blanks are always 1 byte
}
// Render text, render ellipsis
RenderTextClippedEx(draw_list, pos_min, ImVec2(clip_max_x, pos_max.y), text, text_end_ellipsis, &text_size, ImVec2(0.0f, 0.0f));
ImVec2 ellipsis_pos = ImFloor(ImVec2(pos_min.x + text_size_clipped_x, pos_min.y));
if (ellipsis_pos.x + ellipsis_width <= ellipsis_max_x)
for (int i = 0; i < font->EllipsisCharCount; i++, ellipsis_pos.x += font->EllipsisCharStep * font_scale)
font->RenderChar(draw_list, font_size, ellipsis_pos, GetColorU32(ImGuiCol_Text), font->EllipsisChar);
}
else
{
RenderTextClippedEx(draw_list, pos_min, ImVec2(clip_max_x, pos_max.y), text, text_end_full, &text_size, ImVec2(0.0f, 0.0f));
}
if (g.LogEnabled)
LogRenderedText(&pos_min, text, text_end_full);
}
// Render a rectangle shaped with optional rounding and borders
void ImGui::RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border, float rounding)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
window->DrawList->AddRectFilled(p_min, p_max, fill_col, rounding);
const float border_size = g.Style.FrameBorderSize;
if (border && border_size > 0.0f)
{
window->DrawList->AddRect(p_min + ImVec2(1, 1), p_max + ImVec2(1, 1), GetColorU32(ImGuiCol_BorderShadow), rounding, 0, border_size);
window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
}
}
void ImGui::RenderFrameBorder(ImVec2 p_min, ImVec2 p_max, float rounding)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const float border_size = g.Style.FrameBorderSize;
if (border_size > 0.0f)
{
window->DrawList->AddRect(p_min + ImVec2(1, 1), p_max + ImVec2(1, 1), GetColorU32(ImGuiCol_BorderShadow), rounding, 0, border_size);
window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
}
}
void ImGui::RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFlags flags)
{
ImGuiContext& g = *GImGui;
if (id != g.NavId)
return;
if (g.NavDisableHighlight && !(flags & ImGuiNavHighlightFlags_AlwaysDraw))
return;
ImGuiWindow* window = g.CurrentWindow;
if (window->DC.NavHideHighlightOneFrame)
return;
float rounding = (flags & ImGuiNavHighlightFlags_NoRounding) ? 0.0f : g.Style.FrameRounding;
ImRect display_rect = bb;
display_rect.ClipWith(window->ClipRect);
if (flags & ImGuiNavHighlightFlags_TypeDefault)
{
const float THICKNESS = 2.0f;
const float DISTANCE = 3.0f + THICKNESS * 0.5f;
display_rect.Expand(ImVec2(DISTANCE, DISTANCE));
bool fully_visible = window->ClipRect.Contains(display_rect);
if (!fully_visible)
window->DrawList->PushClipRect(display_rect.Min, display_rect.Max);
window->DrawList->AddRect(display_rect.Min + ImVec2(THICKNESS * 0.5f, THICKNESS * 0.5f), display_rect.Max - ImVec2(THICKNESS * 0.5f, THICKNESS * 0.5f), GetColorU32(ImGuiCol_NavHighlight), rounding, 0, THICKNESS);
if (!fully_visible)
window->DrawList->PopClipRect();
}
if (flags & ImGuiNavHighlightFlags_TypeThin)
{
window->DrawList->AddRect(display_rect.Min, display_rect.Max, GetColorU32(ImGuiCol_NavHighlight), rounding, 0, 1.0f);
}
}
void ImGui::RenderMouseCursor(ImVec2 base_pos, float base_scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
ImFontAtlas* font_atlas = g.DrawListSharedData.Font->ContainerAtlas;
for (int n = 0; n < g.Viewports.Size; n++)
{
// We scale cursor with current viewport/monitor, however Windows 10 for its own hardware cursor seems to be using a different scale factor.
ImVec2 offset, size, uv[4];
if (!font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
continue;
ImGuiViewportP* viewport = g.Viewports[n];
const ImVec2 pos = base_pos - offset;
const float scale = base_scale;
if (!viewport->GetMainRect().Overlaps(ImRect(pos, pos + ImVec2(size.x + 2, size.y + 2) * scale)))
continue;
ImDrawList* draw_list = GetForegroundDrawList(viewport);
ImTextureID tex_id = font_atlas->TexID;
draw_list->PushTextureID(tex_id);
draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
draw_list->PopTextureID();
}
}
//-----------------------------------------------------------------------------
// [SECTION] INITIALIZATION, SHUTDOWN
//-----------------------------------------------------------------------------
// Internal state access - if you want to share Dear ImGui state between modules (e.g. DLL) or allocate it yourself
// Note that we still point to some static data and members (such as GFontAtlas), so the state instance you end up using will point to the static data within its module
ImGuiContext* ImGui::GetCurrentContext()
{
return GImGui;
}
void ImGui::SetCurrentContext(ImGuiContext* ctx)
{
#ifdef IMGUI_SET_CURRENT_CONTEXT_FUNC
IMGUI_SET_CURRENT_CONTEXT_FUNC(ctx); // For custom thread-based hackery you may want to have control over this.
#else
GImGui = ctx;
#endif
}
void ImGui::SetAllocatorFunctions(ImGuiMemAllocFunc alloc_func, ImGuiMemFreeFunc free_func, void* user_data)
{
GImAllocatorAllocFunc = alloc_func;
GImAllocatorFreeFunc = free_func;
GImAllocatorUserData = user_data;
}
// This is provided to facilitate copying allocators from one static/DLL boundary to another (e.g. retrieve default allocator of your executable address space)
void ImGui::GetAllocatorFunctions(ImGuiMemAllocFunc* p_alloc_func, ImGuiMemFreeFunc* p_free_func, void** p_user_data)
{
*p_alloc_func = GImAllocatorAllocFunc;
*p_free_func = GImAllocatorFreeFunc;
*p_user_data = GImAllocatorUserData;
}
ImGuiContext* ImGui::CreateContext(ImFontAtlas* shared_font_atlas)
{
ImGuiContext* prev_ctx = GetCurrentContext();
ImGuiContext* ctx = IM_NEW(ImGuiContext)(shared_font_atlas);
SetCurrentContext(ctx);
Initialize();
if (prev_ctx != NULL)
SetCurrentContext(prev_ctx); // Restore previous context if any, else keep new one.
return ctx;
}
void ImGui::DestroyContext(ImGuiContext* ctx)
{
ImGuiContext* prev_ctx = GetCurrentContext();
if (ctx == NULL) //-V1051
ctx = prev_ctx;
SetCurrentContext(ctx);
Shutdown();
SetCurrentContext((prev_ctx != ctx) ? prev_ctx : NULL);
IM_DELETE(ctx);
}
// IMPORTANT: ###xxx suffixes must be same in ALL languages
static const ImGuiLocEntry GLocalizationEntriesEnUS[] =
{
{ ImGuiLocKey_TableSizeOne, "Size column to fit###SizeOne" },
{ ImGuiLocKey_TableSizeAllFit, "Size all columns to fit###SizeAll" },
{ ImGuiLocKey_TableSizeAllDefault, "Size all columns to default###SizeAll" },
{ ImGuiLocKey_TableResetOrder, "Reset order###ResetOrder" },
{ ImGuiLocKey_WindowingMainMenuBar, "(Main menu bar)" },
{ ImGuiLocKey_WindowingPopup, "(Popup)" },
{ ImGuiLocKey_WindowingUntitled, "(Untitled)" },
};
void ImGui::Initialize()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(!g.Initialized && !g.SettingsLoaded);
// Add .ini handle for ImGuiWindow and ImGuiTable types
{
ImGuiSettingsHandler ini_handler;
ini_handler.TypeName = "Window";
ini_handler.TypeHash = ImHashStr("Window");
ini_handler.ClearAllFn = WindowSettingsHandler_ClearAll;
ini_handler.ReadOpenFn = WindowSettingsHandler_ReadOpen;
ini_handler.ReadLineFn = WindowSettingsHandler_ReadLine;
ini_handler.ApplyAllFn = WindowSettingsHandler_ApplyAll;
ini_handler.WriteAllFn = WindowSettingsHandler_WriteAll;
AddSettingsHandler(&ini_handler);
}
TableSettingsAddSettingsHandler();
// Setup default localization table
LocalizeRegisterEntries(GLocalizationEntriesEnUS, IM_ARRAYSIZE(GLocalizationEntriesEnUS));
// Setup default platform clipboard/IME handlers.
g.IO.GetClipboardTextFn = GetClipboardTextFn_DefaultImpl; // Platform dependent default implementations
g.IO.SetClipboardTextFn = SetClipboardTextFn_DefaultImpl;
g.IO.ClipboardUserData = (void*)&g; // Default implementation use the ImGuiContext as user data (ideally those would be arguments to the function)
g.IO.SetPlatformImeDataFn = SetPlatformImeDataFn_DefaultImpl;
// Create default viewport
ImGuiViewportP* viewport = IM_NEW(ImGuiViewportP)();
g.Viewports.push_back(viewport);
g.TempBuffer.resize(1024 * 3 + 1, 0);
#ifdef IMGUI_HAS_DOCK
#endif
g.Initialized = true;
}
// This function is merely here to free heap allocations.
void ImGui::Shutdown()
{
// The fonts atlas can be used prior to calling NewFrame(), so we clear it even if g.Initialized is FALSE (which would happen if we never called NewFrame)
ImGuiContext& g = *GImGui;
if (g.IO.Fonts && g.FontAtlasOwnedByContext)
{
g.IO.Fonts->Locked = false;
IM_DELETE(g.IO.Fonts);
}
g.IO.Fonts = NULL;
g.DrawListSharedData.TempBuffer.clear();
// Cleanup of other data are conditional on actually having initialized Dear ImGui.
if (!g.Initialized)
return;
// Save settings (unless we haven't attempted to load them: CreateContext/DestroyContext without a call to NewFrame shouldn't save an empty file)
if (g.SettingsLoaded && g.IO.IniFilename != NULL)
SaveIniSettingsToDisk(g.IO.IniFilename);
CallContextHooks(&g, ImGuiContextHookType_Shutdown);
// Clear everything else
g.Windows.clear_delete();
g.WindowsFocusOrder.clear();
g.WindowsTempSortBuffer.clear();
g.CurrentWindow = NULL;
g.CurrentWindowStack.clear();
g.WindowsById.Clear();
g.NavWindow = NULL;
g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL;
g.ActiveIdWindow = g.ActiveIdPreviousFrameWindow = NULL;
g.MovingWindow = NULL;
g.KeysRoutingTable.Clear();
g.ColorStack.clear();
g.StyleVarStack.clear();
g.FontStack.clear();
g.OpenPopupStack.clear();
g.BeginPopupStack.clear();
g.Viewports.clear_delete();
g.TabBars.Clear();
g.CurrentTabBarStack.clear();
g.ShrinkWidthBuffer.clear();
g.ClipperTempData.clear_destruct();
g.Tables.Clear();
g.TablesTempData.clear_destruct();
g.DrawChannelsTempMergeBuffer.clear();
g.ClipboardHandlerData.clear();
g.MenusIdSubmittedThisFrame.clear();
g.InputTextState.ClearFreeMemory();
g.SettingsWindows.clear();
g.SettingsHandlers.clear();
if (g.LogFile)
{
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
if (g.LogFile != stdout)
#endif
ImFileClose(g.LogFile);
g.LogFile = NULL;
}
g.LogBuffer.clear();
g.DebugLogBuf.clear();
g.DebugLogIndex.clear();
g.Initialized = false;
}
// No specific ordering/dependency support, will see as needed
ImGuiID ImGui::AddContextHook(ImGuiContext* ctx, const ImGuiContextHook* hook)
{
ImGuiContext& g = *ctx;
IM_ASSERT(hook->Callback != NULL && hook->HookId == 0 && hook->Type != ImGuiContextHookType_PendingRemoval_);
g.Hooks.push_back(*hook);
g.Hooks.back().HookId = ++g.HookIdNext;
return g.HookIdNext;
}
// Deferred removal, avoiding issue with changing vector while iterating it
void ImGui::RemoveContextHook(ImGuiContext* ctx, ImGuiID hook_id)
{
ImGuiContext& g = *ctx;
IM_ASSERT(hook_id != 0);
for (int n = 0; n < g.Hooks.Size; n++)
if (g.Hooks[n].HookId == hook_id)
g.Hooks[n].Type = ImGuiContextHookType_PendingRemoval_;
}
// Call context hooks (used by e.g. test engine)
// We assume a small number of hooks so all stored in same array
void ImGui::CallContextHooks(ImGuiContext* ctx, ImGuiContextHookType hook_type)
{
ImGuiContext& g = *ctx;
for (int n = 0; n < g.Hooks.Size; n++)
if (g.Hooks[n].Type == hook_type)
g.Hooks[n].Callback(&g, &g.Hooks[n]);
}
//-----------------------------------------------------------------------------
// [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!)
//-----------------------------------------------------------------------------
// ImGuiWindow is mostly a dumb struct. It merely has a constructor and a few helper methods
ImGuiWindow::ImGuiWindow(ImGuiContext* ctx, const char* name) : DrawListInst(NULL)
{
memset(this, 0, sizeof(*this));
Ctx = ctx;
Name = ImStrdup(name);
NameBufLen = (int)strlen(name) + 1;
ID = ImHashStr(name);
IDStack.push_back(ID);
MoveId = GetID("#MOVE");
ScrollTarget = ImVec2(FLT_MAX, FLT_MAX);
ScrollTargetCenterRatio = ImVec2(0.5f, 0.5f);
AutoFitFramesX = AutoFitFramesY = -1;
AutoPosLastDirection = ImGuiDir_None;
SetWindowPosAllowFlags = SetWindowSizeAllowFlags = SetWindowCollapsedAllowFlags = 0;
SetWindowPosVal = SetWindowPosPivot = ImVec2(FLT_MAX, FLT_MAX);
LastFrameActive = -1;
LastTimeActive = -1.0f;
FontWindowScale = 1.0f;
SettingsOffset = -1;
DrawList = &DrawListInst;
DrawList->_Data = &Ctx->DrawListSharedData;
DrawList->_OwnerName = Name;
}
ImGuiWindow::~ImGuiWindow()
{
IM_ASSERT(DrawList == &DrawListInst);
IM_DELETE(Name);
ColumnsStorage.clear_destruct();
}
ImGuiID ImGuiWindow::GetID(const char* str, const char* str_end)
{
ImGuiID seed = IDStack.back();
ImGuiID id = ImHashStr(str, str_end ? (str_end - str) : 0, seed);
ImGuiContext& g = *Ctx;
if (g.DebugHookIdInfo == id)
ImGui::DebugHookIdInfo(id, ImGuiDataType_String, str, str_end);
return id;
}
ImGuiID ImGuiWindow::GetID(const void* ptr)
{
ImGuiID seed = IDStack.back();
ImGuiID id = ImHashData(&ptr, sizeof(void*), seed);
ImGuiContext& g = *Ctx;
if (g.DebugHookIdInfo == id)
ImGui::DebugHookIdInfo(id, ImGuiDataType_Pointer, ptr, NULL);
return id;
}
ImGuiID ImGuiWindow::GetID(int n)
{
ImGuiID seed = IDStack.back();
ImGuiID id = ImHashData(&n, sizeof(n), seed);
ImGuiContext& g = *Ctx;
if (g.DebugHookIdInfo == id)
ImGui::DebugHookIdInfo(id, ImGuiDataType_S32, (void*)(intptr_t)n, NULL);
return id;
}
// This is only used in rare/specific situations to manufacture an ID out of nowhere.
ImGuiID ImGuiWindow::GetIDFromRectangle(const ImRect& r_abs)
{
ImGuiID seed = IDStack.back();
ImRect r_rel = ImGui::WindowRectAbsToRel(this, r_abs);
ImGuiID id = ImHashData(&r_rel, sizeof(r_rel), seed);
return id;
}
static void SetCurrentWindow(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
g.CurrentWindow = window;
g.CurrentTable = window && window->DC.CurrentTableIdx != -1 ? g.Tables.GetByIndex(window->DC.CurrentTableIdx) : NULL;
if (window)
g.FontSize = g.DrawListSharedData.FontSize = window->CalcFontSize();
}
void ImGui::GcCompactTransientMiscBuffers()
{
ImGuiContext& g = *GImGui;
g.ItemFlagsStack.clear();
g.GroupStack.clear();
TableGcCompactSettings();
}
// Free up/compact internal window buffers, we can use this when a window becomes unused.
// Not freed:
// - ImGuiWindow, ImGuiWindowSettings, Name, StateStorage, ColumnsStorage (may hold useful data)
// This should have no noticeable visual effect. When the window reappear however, expect new allocation/buffer growth/copy cost.
void ImGui::GcCompactTransientWindowBuffers(ImGuiWindow* window)
{
window->MemoryCompacted = true;
window->MemoryDrawListIdxCapacity = window->DrawList->IdxBuffer.Capacity;
window->MemoryDrawListVtxCapacity = window->DrawList->VtxBuffer.Capacity;
window->IDStack.clear();
window->DrawList->_ClearFreeMemory();
window->DC.ChildWindows.clear();
window->DC.ItemWidthStack.clear();
window->DC.TextWrapPosStack.clear();
}
void ImGui::GcAwakeTransientWindowBuffers(ImGuiWindow* window)
{
// We stored capacity of the ImDrawList buffer to reduce growth-caused allocation/copy when awakening.
// The other buffers tends to amortize much faster.
window->MemoryCompacted = false;
window->DrawList->IdxBuffer.reserve(window->MemoryDrawListIdxCapacity);
window->DrawList->VtxBuffer.reserve(window->MemoryDrawListVtxCapacity);
window->MemoryDrawListIdxCapacity = window->MemoryDrawListVtxCapacity = 0;
}
void ImGui::SetActiveID(ImGuiID id, ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
// While most behaved code would make an effort to not steal active id during window move/drag operations,
// we at least need to be resilient to it. Cancelling the move is rather aggressive and users of 'master' branch
// may prefer the weird ill-defined half working situation ('docking' did assert), so may need to rework that.
if (g.MovingWindow != NULL && g.ActiveId == g.MovingWindow->MoveId)
{
IMGUI_DEBUG_LOG_ACTIVEID("SetActiveID() cancel MovingWindow\n");
g.MovingWindow = NULL;
}
// Set active id
g.ActiveIdIsJustActivated = (g.ActiveId != id);
if (g.ActiveIdIsJustActivated)
{
IMGUI_DEBUG_LOG_ACTIVEID("SetActiveID() old:0x%08X (window \"%s\") -> new:0x%08X (window \"%s\")\n", g.ActiveId, g.ActiveIdWindow ? g.ActiveIdWindow->Name : "", id, window ? window->Name : "");
g.ActiveIdTimer = 0.0f;
g.ActiveIdHasBeenPressedBefore = false;
g.ActiveIdHasBeenEditedBefore = false;
g.ActiveIdMouseButton = -1;
if (id != 0)
{
g.LastActiveId = id;
g.LastActiveIdTimer = 0.0f;
}
}
g.ActiveId = id;
g.ActiveIdAllowOverlap = false;
g.ActiveIdNoClearOnFocusLoss = false;
g.ActiveIdWindow = window;
g.ActiveIdHasBeenEditedThisFrame = false;
if (id)
{
g.ActiveIdIsAlive = id;
g.ActiveIdSource = (g.NavActivateId == id || g.NavJustMovedToId == id) ? (ImGuiInputSource)ImGuiInputSource_Nav : ImGuiInputSource_Mouse;
}
// Clear declaration of inputs claimed by the widget
// (Please note that this is WIP and not all keys/inputs are thoroughly declared by all widgets yet)
g.ActiveIdUsingNavDirMask = 0x00;
g.ActiveIdUsingAllKeyboardKeys = false;
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
g.ActiveIdUsingNavInputMask = 0x00;
#endif
}
void ImGui::ClearActiveID()
{
SetActiveID(0, NULL); // g.ActiveId = 0;
}
void ImGui::SetHoveredID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
g.HoveredId = id;
g.HoveredIdAllowOverlap = false;
if (id != 0 && g.HoveredIdPreviousFrame != id)
g.HoveredIdTimer = g.HoveredIdNotActiveTimer = 0.0f;
}
ImGuiID ImGui::GetHoveredID()
{
ImGuiContext& g = *GImGui;
return g.HoveredId ? g.HoveredId : g.HoveredIdPreviousFrame;
}
// This is called by ItemAdd().
// Code not using ItemAdd() may need to call this manually otherwise ActiveId will be cleared. In IMGUI_VERSION_NUM < 18717 this was called by GetID().
void ImGui::KeepAliveID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
if (g.ActiveId == id)
g.ActiveIdIsAlive = id;
if (g.ActiveIdPreviousFrame == id)
g.ActiveIdPreviousFrameIsAlive = true;
}
void ImGui::MarkItemEdited(ImGuiID id)
{
// This marking is solely to be able to provide info for IsItemDeactivatedAfterEdit().
// ActiveId might have been released by the time we call this (as in the typical press/release button behavior) but still need to fill the data.
ImGuiContext& g = *GImGui;
IM_ASSERT(g.ActiveId == id || g.ActiveId == 0 || g.DragDropActive);
IM_UNUSED(id); // Avoid unused variable warnings when asserts are compiled out.
//IM_ASSERT(g.CurrentWindow->DC.LastItemId == id);
g.ActiveIdHasBeenEditedThisFrame = true;
g.ActiveIdHasBeenEditedBefore = true;
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Edited;
}
static inline bool IsWindowContentHoverable(ImGuiWindow* window, ImGuiHoveredFlags flags)
{
// An active popup disable hovering on other windows (apart from its own children)
// FIXME-OPT: This could be cached/stored within the window.
ImGuiContext& g = *GImGui;
if (g.NavWindow)
if (ImGuiWindow* focused_root_window = g.NavWindow->RootWindow)
if (focused_root_window->WasActive && focused_root_window != window->RootWindow)
{
// For the purpose of those flags we differentiate "standard popup" from "modal popup"
// NB: The 'else' is important because Modal windows are also Popups.
bool want_inhibit = false;
if (focused_root_window->Flags & ImGuiWindowFlags_Modal)
want_inhibit = true;
else if ((focused_root_window->Flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiHoveredFlags_AllowWhenBlockedByPopup))
want_inhibit = true;
// Inhibit hover unless the window is within the stack of our modal/popup
if (want_inhibit)
if (!ImGui::IsWindowWithinBeginStackOf(window->RootWindow, focused_root_window))
return false;
}
return true;
}
// This is roughly matching the behavior of internal-facing ItemHoverable()
// - we allow hovering to be true when ActiveId==window->MoveID, so that clicking on non-interactive items such as a Text() item still returns true with IsItemHovered()
// - this should work even for non-interactive items that have no ID, so we cannot use LastItemId
bool ImGui::IsItemHovered(ImGuiHoveredFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (g.NavDisableMouseHover && !g.NavDisableHighlight && !(flags & ImGuiHoveredFlags_NoNavOverride))
{
if ((g.LastItemData.InFlags & ImGuiItemFlags_Disabled) && !(flags & ImGuiHoveredFlags_AllowWhenDisabled))
return false;
if (!IsItemFocused())
return false;
}
else
{
// Test for bounding box overlap, as updated as ItemAdd()
ImGuiItemStatusFlags status_flags = g.LastItemData.StatusFlags;
if (!(status_flags & ImGuiItemStatusFlags_HoveredRect))
return false;
IM_ASSERT((flags & (ImGuiHoveredFlags_AnyWindow | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_NoPopupHierarchy)) == 0); // Flags not supported by this function
// Done with rectangle culling so we can perform heavier checks now
// Test if we are hovering the right window (our window could be behind another window)
// [2021/03/02] Reworked / reverted the revert, finally. Note we want e.g. BeginGroup/ItemAdd/EndGroup to work as well. (#3851)
// [2017/10/16] Reverted commit 344d48be3 and testing RootWindow instead. I believe it is correct to NOT test for RootWindow but this leaves us unable
// to use IsItemHovered() after EndChild() itself. Until a solution is found I believe reverting to the test from 2017/09/27 is safe since this was
// the test that has been running for a long while.
if (g.HoveredWindow != window && (status_flags & ImGuiItemStatusFlags_HoveredWindow) == 0)
if ((flags & ImGuiHoveredFlags_AllowWhenOverlapped) == 0)
return false;
// Test if another item is active (e.g. being dragged)
if ((flags & ImGuiHoveredFlags_AllowWhenBlockedByActiveItem) == 0)
if (g.ActiveId != 0 && g.ActiveId != g.LastItemData.ID && !g.ActiveIdAllowOverlap && g.ActiveId != window->MoveId)
return false;
// Test if interactions on this window are blocked by an active popup or modal.
// The ImGuiHoveredFlags_AllowWhenBlockedByPopup flag will be tested here.
if (!IsWindowContentHoverable(window, flags) && !(g.LastItemData.InFlags & ImGuiItemFlags_NoWindowHoverableCheck))
return false;
// Test if the item is disabled
if ((g.LastItemData.InFlags & ImGuiItemFlags_Disabled) && !(flags & ImGuiHoveredFlags_AllowWhenDisabled))
return false;
// Special handling for calling after Begin() which represent the title bar or tab.
// When the window is skipped/collapsed (SkipItems==true) that last item will never be overwritten so we need to detect the case.
if (g.LastItemData.ID == window->MoveId && window->WriteAccessed)
return false;
}
// Handle hover delay
// (some ideas: https://www.nngroup.com/articles/timing-exposing-content)
float delay;
if (flags & ImGuiHoveredFlags_DelayNormal)
delay = g.IO.HoverDelayNormal;
else if (flags & ImGuiHoveredFlags_DelayShort)
delay = g.IO.HoverDelayShort;
else
delay = 0.0f;
if (delay > 0.0f)
{
ImGuiID hover_delay_id = (g.LastItemData.ID != 0) ? g.LastItemData.ID : window->GetIDFromRectangle(g.LastItemData.Rect);
if ((flags & ImGuiHoveredFlags_NoSharedDelay) && (g.HoverDelayIdPreviousFrame != hover_delay_id))
g.HoverDelayTimer = 0.0f;
g.HoverDelayId = hover_delay_id;
return g.HoverDelayTimer >= delay;
}
return true;
}
// Internal facing ItemHoverable() used when submitting widgets. Differs slightly from IsItemHovered().
bool ImGui::ItemHoverable(const ImRect& bb, ImGuiID id)
{
ImGuiContext& g = *GImGui;
if (g.HoveredId != 0 && g.HoveredId != id && !g.HoveredIdAllowOverlap)
return false;
ImGuiWindow* window = g.CurrentWindow;
if (g.HoveredWindow != window)
return false;
if (g.ActiveId != 0 && g.ActiveId != id && !g.ActiveIdAllowOverlap)
return false;
if (!IsMouseHoveringRect(bb.Min, bb.Max))
return false;
// Done with rectangle culling so we can perform heavier checks now.
ImGuiItemFlags item_flags = (g.LastItemData.ID == id ? g.LastItemData.InFlags : g.CurrentItemFlags);
if (!(item_flags & ImGuiItemFlags_NoWindowHoverableCheck) && !IsWindowContentHoverable(window, ImGuiHoveredFlags_None))
{
g.HoveredIdDisabled = true;
return false;
}
// We exceptionally allow this function to be called with id==0 to allow using it for easy high-level
// hover test in widgets code. We could also decide to split this function is two.
if (id != 0)
SetHoveredID(id);
// When disabled we'll return false but still set HoveredId
if (item_flags & ImGuiItemFlags_Disabled)
{
// Release active id if turning disabled
if (g.ActiveId == id)
ClearActiveID();
g.HoveredIdDisabled = true;
return false;
}
if (id != 0)
{
// [DEBUG] Item Picker tool!
// We perform the check here because SetHoveredID() is not frequently called (1~ time a frame), making
// the cost of this tool near-zero. We can get slightly better call-stack and support picking non-hovered
// items if we performed the test in ItemAdd(), but that would incur a small runtime cost.
if (g.DebugItemPickerActive && g.HoveredIdPreviousFrame == id)
GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(255, 255, 0, 255));
if (g.DebugItemPickerBreakId == id)
IM_DEBUG_BREAK();
}
if (g.NavDisableMouseHover)
return false;
return true;
}
// FIXME: This is inlined/duplicated in ItemAdd()
bool ImGui::IsClippedEx(const ImRect& bb, ImGuiID id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (!bb.Overlaps(window->ClipRect))
if (id == 0 || (id != g.ActiveId && id != g.NavId))
if (!g.LogEnabled)
return true;
return false;
}
// This is also inlined in ItemAdd()
// Note: if ImGuiItemStatusFlags_HasDisplayRect is set, user needs to set g.LastItemData.DisplayRect.
void ImGui::SetLastItemData(ImGuiID item_id, ImGuiItemFlags in_flags, ImGuiItemStatusFlags item_flags, const ImRect& item_rect)
{
ImGuiContext& g = *GImGui;
g.LastItemData.ID = item_id;
g.LastItemData.InFlags = in_flags;
g.LastItemData.StatusFlags = item_flags;
g.LastItemData.Rect = g.LastItemData.NavRect = item_rect;
}
float ImGui::CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x)
{
if (wrap_pos_x < 0.0f)
return 0.0f;
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (wrap_pos_x == 0.0f)
{
// We could decide to setup a default wrapping max point for auto-resizing windows,
// or have auto-wrap (with unspecified wrapping pos) behave as a ContentSize extending function?
//if (window->Hidden && (window->Flags & ImGuiWindowFlags_AlwaysAutoResize))
// wrap_pos_x = ImMax(window->WorkRect.Min.x + g.FontSize * 10.0f, window->WorkRect.Max.x);
//else
wrap_pos_x = window->WorkRect.Max.x;
}
else if (wrap_pos_x > 0.0f)
{
wrap_pos_x += window->Pos.x - window->Scroll.x; // wrap_pos_x is provided is window local space
}
return ImMax(wrap_pos_x - pos.x, 1.0f);
}
// IM_ALLOC() == ImGui::MemAlloc()
void* ImGui::MemAlloc(size_t size)
{
if (ImGuiContext* ctx = GImGui)
ctx->IO.MetricsActiveAllocations++;
return (*GImAllocatorAllocFunc)(size, GImAllocatorUserData);
}
// IM_FREE() == ImGui::MemFree()
void ImGui::MemFree(void* ptr)
{
if (ptr)
if (ImGuiContext* ctx = GImGui)
ctx->IO.MetricsActiveAllocations--;
return (*GImAllocatorFreeFunc)(ptr, GImAllocatorUserData);
}
const char* ImGui::GetClipboardText()
{
ImGuiContext& g = *GImGui;
return g.IO.GetClipboardTextFn ? g.IO.GetClipboardTextFn(g.IO.ClipboardUserData) : "";
}
void ImGui::SetClipboardText(const char* text)
{
ImGuiContext& g = *GImGui;
if (g.IO.SetClipboardTextFn)
g.IO.SetClipboardTextFn(g.IO.ClipboardUserData, text);
}
const char* ImGui::GetVersion()
{
return IMGUI_VERSION;
}
ImGuiIO& ImGui::GetIO()
{
IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
return GImGui->IO;
}
// Pass this to your backend rendering function! Valid after Render() and until the next call to NewFrame()
ImDrawData* ImGui::GetDrawData()
{
ImGuiContext& g = *GImGui;
ImGuiViewportP* viewport = g.Viewports[0];
return viewport->DrawDataP.Valid ? &viewport->DrawDataP : NULL;
}
double ImGui::GetTime()
{
return GImGui->Time;
}
int ImGui::GetFrameCount()
{
return GImGui->FrameCount;
}
static ImDrawList* GetViewportDrawList(ImGuiViewportP* viewport, size_t drawlist_no, const char* drawlist_name)
{
// Create the draw list on demand, because they are not frequently used for all viewports
ImGuiContext& g = *GImGui;
IM_ASSERT(drawlist_no < IM_ARRAYSIZE(viewport->DrawLists));
ImDrawList* draw_list = viewport->DrawLists[drawlist_no];
if (draw_list == NULL)
{
draw_list = IM_NEW(ImDrawList)(&g.DrawListSharedData);
draw_list->_OwnerName = drawlist_name;
viewport->DrawLists[drawlist_no] = draw_list;
}
// Our ImDrawList system requires that there is always a command
if (viewport->DrawListsLastFrame[drawlist_no] != g.FrameCount)
{
draw_list->_ResetForNewFrame();
draw_list->PushTextureID(g.IO.Fonts->TexID);
draw_list->PushClipRect(viewport->Pos, viewport->Pos + viewport->Size, false);
viewport->DrawListsLastFrame[drawlist_no] = g.FrameCount;
}
return draw_list;
}
ImDrawList* ImGui::GetBackgroundDrawList(ImGuiViewport* viewport)
{
return GetViewportDrawList((ImGuiViewportP*)viewport, 0, "##Background");
}
ImDrawList* ImGui::GetBackgroundDrawList()
{
ImGuiContext& g = *GImGui;
return GetBackgroundDrawList(g.Viewports[0]);
}
ImDrawList* ImGui::GetForegroundDrawList(ImGuiViewport* viewport)
{
return GetViewportDrawList((ImGuiViewportP*)viewport, 1, "##Foreground");
}
ImDrawList* ImGui::GetForegroundDrawList()
{
ImGuiContext& g = *GImGui;
return GetForegroundDrawList(g.Viewports[0]);
}
ImDrawListSharedData* ImGui::GetDrawListSharedData()
{
return &GImGui->DrawListSharedData;
}
void ImGui::StartMouseMovingWindow(ImGuiWindow* window)
{
// Set ActiveId even if the _NoMove flag is set. Without it, dragging away from a window with _NoMove would activate hover on other windows.
// We _also_ call this when clicking in a window empty space when io.ConfigWindowsMoveFromTitleBarOnly is set, but clear g.MovingWindow afterward.
// This is because we want ActiveId to be set even when the window is not permitted to move.
ImGuiContext& g = *GImGui;
FocusWindow(window);
SetActiveID(window->MoveId, window);
g.NavDisableHighlight = true;
g.ActiveIdClickOffset = g.IO.MouseClickedPos[0] - window->RootWindow->Pos;
g.ActiveIdNoClearOnFocusLoss = true;
SetActiveIdUsingAllKeyboardKeys();
bool can_move_window = true;
if ((window->Flags & ImGuiWindowFlags_NoMove) || (window->RootWindow->Flags & ImGuiWindowFlags_NoMove))
can_move_window = false;
if (can_move_window)
g.MovingWindow = window;
}
// Handle mouse moving window
// Note: moving window with the navigation keys (Square + d-pad / CTRL+TAB + Arrows) are processed in NavUpdateWindowing()
// FIXME: We don't have strong guarantee that g.MovingWindow stay synched with g.ActiveId == g.MovingWindow->MoveId.
// This is currently enforced by the fact that BeginDragDropSource() is setting all g.ActiveIdUsingXXXX flags to inhibit navigation inputs,
// but if we should more thoroughly test cases where g.ActiveId or g.MovingWindow gets changed and not the other.
void ImGui::UpdateMouseMovingWindowNewFrame()
{
ImGuiContext& g = *GImGui;
if (g.MovingWindow != NULL)
{
// We actually want to move the root window. g.MovingWindow == window we clicked on (could be a child window).
// We track it to preserve Focus and so that generally ActiveIdWindow == MovingWindow and ActiveId == MovingWindow->MoveId for consistency.
KeepAliveID(g.ActiveId);
IM_ASSERT(g.MovingWindow && g.MovingWindow->RootWindow);
ImGuiWindow* moving_window = g.MovingWindow->RootWindow;
if (g.IO.MouseDown[0] && IsMousePosValid(&g.IO.MousePos))
{
ImVec2 pos = g.IO.MousePos - g.ActiveIdClickOffset;
SetWindowPos(moving_window, pos, ImGuiCond_Always);
FocusWindow(g.MovingWindow);
}
else
{
g.MovingWindow = NULL;
ClearActiveID();
}
}
else
{
// When clicking/dragging from a window that has the _NoMove flag, we still set the ActiveId in order to prevent hovering others.
if (g.ActiveIdWindow && g.ActiveIdWindow->MoveId == g.ActiveId)
{
KeepAliveID(g.ActiveId);
if (!g.IO.MouseDown[0])
ClearActiveID();
}
}
}
// Initiate moving window when clicking on empty space or title bar.
// Handle left-click and right-click focus.
void ImGui::UpdateMouseMovingWindowEndFrame()
{
ImGuiContext& g = *GImGui;
if (g.ActiveId != 0 || g.HoveredId != 0)
return;
// Unless we just made a window/popup appear
if (g.NavWindow && g.NavWindow->Appearing)
return;
// Click on empty space to focus window and start moving
// (after we're done with all our widgets)
if (g.IO.MouseClicked[0])
{
// Handle the edge case of a popup being closed while clicking in its empty space.
// If we try to focus it, FocusWindow() > ClosePopupsOverWindow() will accidentally close any parent popups because they are not linked together any more.
ImGuiWindow* root_window = g.HoveredWindow ? g.HoveredWindow->RootWindow : NULL;
const bool is_closed_popup = root_window && (root_window->Flags & ImGuiWindowFlags_Popup) && !IsPopupOpen(root_window->PopupId, ImGuiPopupFlags_AnyPopupLevel);
if (root_window != NULL && !is_closed_popup)
{
StartMouseMovingWindow(g.HoveredWindow); //-V595
// Cancel moving if clicked outside of title bar
if (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(root_window->Flags & ImGuiWindowFlags_NoTitleBar))
if (!root_window->TitleBarRect().Contains(g.IO.MouseClickedPos[0]))
g.MovingWindow = NULL;
// Cancel moving if clicked over an item which was disabled or inhibited by popups (note that we know HoveredId == 0 already)
if (g.HoveredIdDisabled)
g.MovingWindow = NULL;
}
else if (root_window == NULL && g.NavWindow != NULL && GetTopMostPopupModal() == NULL)
{
// Clicking on void disable focus
FocusWindow(NULL);
}
}
// With right mouse button we close popups without changing focus based on where the mouse is aimed
// Instead, focus will be restored to the window under the bottom-most closed popup.
// (The left mouse button path calls FocusWindow on the hovered window, which will lead NewFrame->ClosePopupsOverWindow to trigger)
if (g.IO.MouseClicked[1])
{
// Find the top-most window between HoveredWindow and the top-most Modal Window.
// This is where we can trim the popup stack.
ImGuiWindow* modal = GetTopMostPopupModal();
bool hovered_window_above_modal = g.HoveredWindow && (modal == NULL || IsWindowAbove(g.HoveredWindow, modal));
ClosePopupsOverWindow(hovered_window_above_modal ? g.HoveredWindow : modal, true);
}
}
static bool IsWindowActiveAndVisible(ImGuiWindow* window)
{
return (window->Active) && (!window->Hidden);
}
// The reason this is exposed in imgui_internal.h is: on touch-based system that don't have hovering, we want to dispatch inputs to the right target (imgui vs imgui+app)
void ImGui::UpdateHoveredWindowAndCaptureFlags()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
g.WindowsHoverPadding = ImMax(g.Style.TouchExtraPadding, ImVec2(WINDOWS_HOVER_PADDING, WINDOWS_HOVER_PADDING));
// Find the window hovered by mouse:
// - Child windows can extend beyond the limit of their parent so we need to derive HoveredRootWindow from HoveredWindow.
// - When moving a window we can skip the search, which also conveniently bypasses the fact that window->WindowRectClipped is lagging as this point of the frame.
// - We also support the moved window toggling the NoInputs flag after moving has started in order to be able to detect windows below it, which is useful for e.g. docking mechanisms.
bool clear_hovered_windows = false;
FindHoveredWindow();
// Modal windows prevents mouse from hovering behind them.
ImGuiWindow* modal_window = GetTopMostPopupModal();
if (modal_window && g.HoveredWindow && !IsWindowWithinBeginStackOf(g.HoveredWindow->RootWindow, modal_window))
clear_hovered_windows = true;
// Disabled mouse?
if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)
clear_hovered_windows = true;
// We track click ownership. When clicked outside of a window the click is owned by the application and
// won't report hovering nor request capture even while dragging over our windows afterward.
const bool has_open_popup = (g.OpenPopupStack.Size > 0);
const bool has_open_modal = (modal_window != NULL);
int mouse_earliest_down = -1;
bool mouse_any_down = false;
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
if (io.MouseClicked[i])
{
io.MouseDownOwned[i] = (g.HoveredWindow != NULL) || has_open_popup;
io.MouseDownOwnedUnlessPopupClose[i] = (g.HoveredWindow != NULL) || has_open_modal;
}
mouse_any_down |= io.MouseDown[i];
if (io.MouseDown[i])
if (mouse_earliest_down == -1 || io.MouseClickedTime[i] < io.MouseClickedTime[mouse_earliest_down])
mouse_earliest_down = i;
}
const bool mouse_avail = (mouse_earliest_down == -1) || io.MouseDownOwned[mouse_earliest_down];
const bool mouse_avail_unless_popup_close = (mouse_earliest_down == -1) || io.MouseDownOwnedUnlessPopupClose[mouse_earliest_down];
// If mouse was first clicked outside of ImGui bounds we also cancel out hovering.
// FIXME: For patterns of drag and drop across OS windows, we may need to rework/remove this test (first committed 311c0ca9 on 2015/02)
const bool mouse_dragging_extern_payload = g.DragDropActive && (g.DragDropSourceFlags & ImGuiDragDropFlags_SourceExtern) != 0;
if (!mouse_avail && !mouse_dragging_extern_payload)
clear_hovered_windows = true;
if (clear_hovered_windows)
g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL;
// Update io.WantCaptureMouse for the user application (true = dispatch mouse info to Dear ImGui only, false = dispatch mouse to Dear ImGui + underlying app)
// Update io.WantCaptureMouseAllowPopupClose (experimental) to give a chance for app to react to popup closure with a drag
if (g.WantCaptureMouseNextFrame != -1)
{
io.WantCaptureMouse = io.WantCaptureMouseUnlessPopupClose = (g.WantCaptureMouseNextFrame != 0);
}
else
{
io.WantCaptureMouse = (mouse_avail && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_popup;
io.WantCaptureMouseUnlessPopupClose = (mouse_avail_unless_popup_close && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_modal;
}
// Update io.WantCaptureKeyboard for the user application (true = dispatch keyboard info to Dear ImGui only, false = dispatch keyboard info to Dear ImGui + underlying app)
if (g.WantCaptureKeyboardNextFrame != -1)
io.WantCaptureKeyboard = (g.WantCaptureKeyboardNextFrame != 0);
else
io.WantCaptureKeyboard = (g.ActiveId != 0) || (modal_window != NULL);
if (io.NavActive && (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) && !(io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard))
io.WantCaptureKeyboard = true;
// Update io.WantTextInput flag, this is to allow systems without a keyboard (e.g. mobile, hand-held) to show a software keyboard if possible
io.WantTextInput = (g.WantTextInputNextFrame != -1) ? (g.WantTextInputNextFrame != 0) : false;
}
void ImGui::NewFrame()
{
IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
ImGuiContext& g = *GImGui;
// Remove pending delete hooks before frame start.
// This deferred removal avoid issues of removal while iterating the hook vector
for (int n = g.Hooks.Size - 1; n >= 0; n--)
if (g.Hooks[n].Type == ImGuiContextHookType_PendingRemoval_)
g.Hooks.erase(&g.Hooks[n]);
CallContextHooks(&g, ImGuiContextHookType_NewFramePre);
// Check and assert for various common IO and Configuration mistakes
ErrorCheckNewFrameSanityChecks();
// Load settings on first frame, save settings when modified (after a delay)
UpdateSettings();
g.Time += g.IO.DeltaTime;
g.WithinFrameScope = true;
g.FrameCount += 1;
g.TooltipOverrideCount = 0;
g.WindowsActiveCount = 0;
g.MenusIdSubmittedThisFrame.resize(0);
// Calculate frame-rate for the user, as a purely luxurious feature
g.FramerateSecPerFrameAccum += g.IO.DeltaTime - g.FramerateSecPerFrame[g.FramerateSecPerFrameIdx];
g.FramerateSecPerFrame[g.FramerateSecPerFrameIdx] = g.IO.DeltaTime;
g.FramerateSecPerFrameIdx = (g.FramerateSecPerFrameIdx + 1) % IM_ARRAYSIZE(g.FramerateSecPerFrame);
g.FramerateSecPerFrameCount = ImMin(g.FramerateSecPerFrameCount + 1, IM_ARRAYSIZE(g.FramerateSecPerFrame));
g.IO.Framerate = (g.FramerateSecPerFrameAccum > 0.0f) ? (1.0f / (g.FramerateSecPerFrameAccum / (float)g.FramerateSecPerFrameCount)) : FLT_MAX;
// Process input queue (trickle as many events as possible), turn events into writes to IO structure
g.InputEventsTrail.resize(0);
UpdateInputEvents(g.IO.ConfigInputTrickleEventQueue);
// Update viewports (after processing input queue, so io.MouseHoveredViewport is set)
UpdateViewportsNewFrame();
// Setup current font and draw list shared data
g.IO.Fonts->Locked = true;
SetCurrentFont(GetDefaultFont());
IM_ASSERT(g.Font->IsLoaded());
ImRect virtual_space(FLT_MAX, FLT_MAX, -FLT_MAX, -FLT_MAX);
for (int n = 0; n < g.Viewports.Size; n++)
virtual_space.Add(g.Viewports[n]->GetMainRect());
g.DrawListSharedData.ClipRectFullscreen = virtual_space.ToVec4();
g.DrawListSharedData.CurveTessellationTol = g.Style.CurveTessellationTol;
g.DrawListSharedData.SetCircleTessellationMaxError(g.Style.CircleTessellationMaxError);
g.DrawListSharedData.InitialFlags = ImDrawListFlags_None;
if (g.Style.AntiAliasedLines)
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedLines;
if (g.Style.AntiAliasedLinesUseTex && !(g.Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines))
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedLinesUseTex;
if (g.Style.AntiAliasedFill)
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedFill;
if (g.IO.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset)
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AllowVtxOffset;
// Mark rendering data as invalid to prevent user who may have a handle on it to use it.
for (int n = 0; n < g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
viewport->DrawDataP.Clear();
}
// Drag and drop keep the source ID alive so even if the source disappear our state is consistent
if (g.DragDropActive && g.DragDropPayload.SourceId == g.ActiveId)
KeepAliveID(g.DragDropPayload.SourceId);
// Update HoveredId data
if (!g.HoveredIdPreviousFrame)
g.HoveredIdTimer = 0.0f;
if (!g.HoveredIdPreviousFrame || (g.HoveredId && g.ActiveId == g.HoveredId))
g.HoveredIdNotActiveTimer = 0.0f;
if (g.HoveredId)
g.HoveredIdTimer += g.IO.DeltaTime;
if (g.HoveredId && g.ActiveId != g.HoveredId)
g.HoveredIdNotActiveTimer += g.IO.DeltaTime;
g.HoveredIdPreviousFrame = g.HoveredId;
g.HoveredId = 0;
g.HoveredIdAllowOverlap = false;
g.HoveredIdDisabled = false;
// Clear ActiveID if the item is not alive anymore.
// In 1.87, the common most call to KeepAliveID() was moved from GetID() to ItemAdd().
// As a result, custom widget using ButtonBehavior() _without_ ItemAdd() need to call KeepAliveID() themselves.
if (g.ActiveId != 0 && g.ActiveIdIsAlive != g.ActiveId && g.ActiveIdPreviousFrame == g.ActiveId)
{
IMGUI_DEBUG_LOG_ACTIVEID("NewFrame(): ClearActiveID() because it isn't marked alive anymore!\n");
ClearActiveID();
}
// Update ActiveId data (clear reference to active widget if the widget isn't alive anymore)
if (g.ActiveId)
g.ActiveIdTimer += g.IO.DeltaTime;
g.LastActiveIdTimer += g.IO.DeltaTime;
g.ActiveIdPreviousFrame = g.ActiveId;
g.ActiveIdPreviousFrameWindow = g.ActiveIdWindow;
g.ActiveIdPreviousFrameHasBeenEditedBefore = g.ActiveIdHasBeenEditedBefore;
g.ActiveIdIsAlive = 0;
g.ActiveIdHasBeenEditedThisFrame = false;
g.ActiveIdPreviousFrameIsAlive = false;
g.ActiveIdIsJustActivated = false;
if (g.TempInputId != 0 && g.ActiveId != g.TempInputId)
g.TempInputId = 0;
if (g.ActiveId == 0)
{
g.ActiveIdUsingNavDirMask = 0x00;
g.ActiveIdUsingAllKeyboardKeys = false;
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
g.ActiveIdUsingNavInputMask = 0x00;
#endif
}
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
if (g.ActiveId == 0)
g.ActiveIdUsingNavInputMask = 0;
else if (g.ActiveIdUsingNavInputMask != 0)
{
// If your custom widget code used: { g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel); }
// Since IMGUI_VERSION_NUM >= 18804 it should be: { SetKeyOwner(ImGuiKey_Escape, g.ActiveId); SetKeyOwner(ImGuiKey_NavGamepadCancel, g.ActiveId); }
if (g.ActiveIdUsingNavInputMask & (1 << ImGuiNavInput_Cancel))
SetKeyOwner(ImGuiKey_Escape, g.ActiveId);
if (g.ActiveIdUsingNavInputMask & ~(1 << ImGuiNavInput_Cancel))
IM_ASSERT(0); // Other values unsupported
}
#endif
// Update hover delay for IsItemHovered() with delays and tooltips
g.HoverDelayIdPreviousFrame = g.HoverDelayId;
if (g.HoverDelayId != 0)
{
//if (g.IO.MouseDelta.x == 0.0f && g.IO.MouseDelta.y == 0.0f) // Need design/flags
g.HoverDelayTimer += g.IO.DeltaTime;
g.HoverDelayClearTimer = 0.0f;
g.HoverDelayId = 0;
}
else if (g.HoverDelayTimer > 0.0f)
{
// This gives a little bit of leeway before clearing the hover timer, allowing mouse to cross gaps
g.HoverDelayClearTimer += g.IO.DeltaTime;
if (g.HoverDelayClearTimer >= ImMax(0.20f, g.IO.DeltaTime * 2.0f)) // ~6 frames at 30 Hz + allow for low framerate
g.HoverDelayTimer = g.HoverDelayClearTimer = 0.0f; // May want a decaying timer, in which case need to clamp at max first, based on max of caller last requested timer.
}
// Drag and drop
g.DragDropAcceptIdPrev = g.DragDropAcceptIdCurr;
g.DragDropAcceptIdCurr = 0;
g.DragDropAcceptIdCurrRectSurface = FLT_MAX;
g.DragDropWithinSource = false;
g.DragDropWithinTarget = false;
g.DragDropHoldJustPressedId = 0;
// Close popups on focus lost (currently wip/opt-in)
//if (g.IO.AppFocusLost)
// ClosePopupsExceptModals();
// Update keyboard input state
UpdateKeyboardInputs();
//IM_ASSERT(g.IO.KeyCtrl == IsKeyDown(ImGuiKey_LeftCtrl) || IsKeyDown(ImGuiKey_RightCtrl));
//IM_ASSERT(g.IO.KeyShift == IsKeyDown(ImGuiKey_LeftShift) || IsKeyDown(ImGuiKey_RightShift));
//IM_ASSERT(g.IO.KeyAlt == IsKeyDown(ImGuiKey_LeftAlt) || IsKeyDown(ImGuiKey_RightAlt));
//IM_ASSERT(g.IO.KeySuper == IsKeyDown(ImGuiKey_LeftSuper) || IsKeyDown(ImGuiKey_RightSuper));
// Update gamepad/keyboard navigation
NavUpdate();
// Update mouse input state
UpdateMouseInputs();
// Find hovered window
// (needs to be before UpdateMouseMovingWindowNewFrame so we fill g.HoveredWindowUnderMovingWindow on the mouse release frame)
UpdateHoveredWindowAndCaptureFlags();
// Handle user moving window with mouse (at the beginning of the frame to avoid input lag or sheering)
UpdateMouseMovingWindowNewFrame();
// Background darkening/whitening
if (GetTopMostPopupModal() != NULL || (g.NavWindowingTarget != NULL && g.NavWindowingHighlightAlpha > 0.0f))
g.DimBgRatio = ImMin(g.DimBgRatio + g.IO.DeltaTime * 6.0f, 1.0f);
else
g.DimBgRatio = ImMax(g.DimBgRatio - g.IO.DeltaTime * 10.0f, 0.0f);
g.MouseCursor = ImGuiMouseCursor_Arrow;
g.WantCaptureMouseNextFrame = g.WantCaptureKeyboardNextFrame = g.WantTextInputNextFrame = -1;
// Platform IME data: reset for the frame
g.PlatformImeDataPrev = g.PlatformImeData;
g.PlatformImeData.WantVisible = false;
// Mouse wheel scrolling, scale
UpdateMouseWheel();
// Mark all windows as not visible and compact unused memory.
IM_ASSERT(g.WindowsFocusOrder.Size <= g.Windows.Size);
const float memory_compact_start_time = (g.GcCompactAll || g.IO.ConfigMemoryCompactTimer < 0.0f) ? FLT_MAX : (float)g.Time - g.IO.ConfigMemoryCompactTimer;
for (int i = 0; i != g.Windows.Size; i++)
{
ImGuiWindow* window = g.Windows[i];
window->WasActive = window->Active;
window->Active = false;
window->WriteAccessed = false;
window->BeginCountPreviousFrame = window->BeginCount;
window->BeginCount = 0;
// Garbage collect transient buffers of recently unused windows
if (!window->WasActive && !window->MemoryCompacted && window->LastTimeActive < memory_compact_start_time)
GcCompactTransientWindowBuffers(window);
}
// Garbage collect transient buffers of recently unused tables
for (int i = 0; i < g.TablesLastTimeActive.Size; i++)
if (g.TablesLastTimeActive[i] >= 0.0f && g.TablesLastTimeActive[i] < memory_compact_start_time)
TableGcCompactTransientBuffers(g.Tables.GetByIndex(i));
for (int i = 0; i < g.TablesTempData.Size; i++)
if (g.TablesTempData[i].LastTimeActive >= 0.0f && g.TablesTempData[i].LastTimeActive < memory_compact_start_time)
TableGcCompactTransientBuffers(&g.TablesTempData[i]);
if (g.GcCompactAll)
GcCompactTransientMiscBuffers();
g.GcCompactAll = false;
// Closing the focused window restore focus to the first active root window in descending z-order
if (g.NavWindow && !g.NavWindow->WasActive)
FocusTopMostWindowUnderOne(NULL, NULL);
// No window should be open at the beginning of the frame.
// But in order to allow the user to call NewFrame() multiple times without calling Render(), we are doing an explicit clear.
g.CurrentWindowStack.resize(0);
g.BeginPopupStack.resize(0);
g.ItemFlagsStack.resize(0);
g.ItemFlagsStack.push_back(ImGuiItemFlags_None);
g.GroupStack.resize(0);
// [DEBUG] Update debug features
UpdateDebugToolItemPicker();
UpdateDebugToolStackQueries();
if (g.DebugLocateFrames > 0 && --g.DebugLocateFrames == 0)
g.DebugLocateId = 0;
if (g.DebugLogClipperAutoDisableFrames > 0 && --g.DebugLogClipperAutoDisableFrames == 0)
{
DebugLog("(Auto-disabled ImGuiDebugLogFlags_EventClipper to avoid spamming)\n");
g.DebugLogFlags &= ~ImGuiDebugLogFlags_EventClipper;
}
// Create implicit/fallback window - which we will only render it if the user has added something to it.
// We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
// This fallback is particularly important as it prevents ImGui:: calls from crashing.
g.WithinFrameScopeWithImplicitWindow = true;
SetNextWindowSize(ImVec2(400, 400), ImGuiCond_FirstUseEver);
Begin("Debug##Default");
IM_ASSERT(g.CurrentWindow->IsFallbackWindow == true);
// [DEBUG] When io.ConfigDebugBeginReturnValue is set, we make Begin()/BeginChild() return false at different level of the window-stack,
// allowing to validate correct Begin/End behavior in user code.
if (g.IO.ConfigDebugBeginReturnValueLoop)
g.DebugBeginReturnValueCullDepth = (g.DebugBeginReturnValueCullDepth == -1) ? 0 : ((g.DebugBeginReturnValueCullDepth + ((g.FrameCount % 4) == 0 ? 1 : 0)) % 10);
else
g.DebugBeginReturnValueCullDepth = -1;
CallContextHooks(&g, ImGuiContextHookType_NewFramePost);
}
// FIXME: Add a more explicit sort order in the window structure.
static int IMGUI_CDECL ChildWindowComparer(const void* lhs, const void* rhs)
{
const ImGuiWindow* const a = *(const ImGuiWindow* const *)lhs;
const ImGuiWindow* const b = *(const ImGuiWindow* const *)rhs;
if (int d = (a->Flags & ImGuiWindowFlags_Popup) - (b->Flags & ImGuiWindowFlags_Popup))
return d;
if (int d = (a->Flags & ImGuiWindowFlags_Tooltip) - (b->Flags & ImGuiWindowFlags_Tooltip))
return d;
return (a->BeginOrderWithinParent - b->BeginOrderWithinParent);
}
static void AddWindowToSortBuffer(ImVector<ImGuiWindow*>* out_sorted_windows, ImGuiWindow* window)
{
out_sorted_windows->push_back(window);
if (window->Active)
{
int count = window->DC.ChildWindows.Size;
ImQsort(window->DC.ChildWindows.Data, (size_t)count, sizeof(ImGuiWindow*), ChildWindowComparer);
for (int i = 0; i < count; i++)
{
ImGuiWindow* child = window->DC.ChildWindows[i];
if (child->Active)
AddWindowToSortBuffer(out_sorted_windows, child);
}
}
}
static void AddDrawListToDrawData(ImVector<ImDrawList*>* out_list, ImDrawList* draw_list)
{
if (draw_list->CmdBuffer.Size == 0)
return;
if (draw_list->CmdBuffer.Size == 1 && draw_list->CmdBuffer[0].ElemCount == 0 && draw_list->CmdBuffer[0].UserCallback == NULL)
return;
// Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
// May trigger for you if you are using PrimXXX functions incorrectly.
IM_ASSERT(draw_list->VtxBuffer.Size == 0 || draw_list->_VtxWritePtr == draw_list->VtxBuffer.Data + draw_list->VtxBuffer.Size);
IM_ASSERT(draw_list->IdxBuffer.Size == 0 || draw_list->_IdxWritePtr == draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size);
if (!(draw_list->Flags & ImDrawListFlags_AllowVtxOffset))
IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size);
// Check that draw_list doesn't use more vertices than indexable (default ImDrawIdx = unsigned short = 2 bytes = 64K vertices per ImDrawList = per window)
// If this assert triggers because you are drawing lots of stuff manually:
// - First, make sure you are coarse clipping yourself and not trying to draw many things outside visible bounds.
// Be mindful that the ImDrawList API doesn't filter vertices. Use the Metrics/Debugger window to inspect draw list contents.
// - If you want large meshes with more than 64K vertices, you can either:
// (A) Handle the ImDrawCmd::VtxOffset value in your renderer backend, and set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset'.
// Most example backends already support this from 1.71. Pre-1.71 backends won't.
// Some graphics API such as GL ES 1/2 don't have a way to offset the starting vertex so it is not supported for them.
// (B) Or handle 32-bit indices in your renderer backend, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h.
// Most example backends already support this. For example, the OpenGL example code detect index size at compile-time:
// glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
// Your own engine or render API may use different parameters or function calls to specify index sizes.
// 2 and 4 bytes indices are generally supported by most graphics API.
// - If for some reason neither of those solutions works for you, a workaround is to call BeginChild()/EndChild() before reaching
// the 64K limit to split your draw commands in multiple draw lists.
if (sizeof(ImDrawIdx) == 2)
IM_ASSERT(draw_list->_VtxCurrentIdx < (1 << 16) && "Too many vertices in ImDrawList using 16-bit indices. Read comment above");
out_list->push_back(draw_list);
}
static void AddWindowToDrawData(ImGuiWindow* window, int layer)
{
ImGuiContext& g = *GImGui;
ImGuiViewportP* viewport = g.Viewports[0];
g.IO.MetricsRenderWindows++;
AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[layer], window->DrawList);
for (int i = 0; i < window->DC.ChildWindows.Size; i++)
{
ImGuiWindow* child = window->DC.ChildWindows[i];
if (IsWindowActiveAndVisible(child)) // Clipped children may have been marked not active
AddWindowToDrawData(child, layer);
}
}
static inline int GetWindowDisplayLayer(ImGuiWindow* window)
{
return (window->Flags & ImGuiWindowFlags_Tooltip) ? 1 : 0;
}
// Layer is locked for the root window, however child windows may use a different viewport (e.g. extruding menu)
static inline void AddRootWindowToDrawData(ImGuiWindow* window)
{
AddWindowToDrawData(window, GetWindowDisplayLayer(window));
}
void ImDrawDataBuilder::FlattenIntoSingleLayer()
{
int n = Layers[0].Size;
int size = n;
for (int i = 1; i < IM_ARRAYSIZE(Layers); i++)
size += Layers[i].Size;
Layers[0].resize(size);
for (int layer_n = 1; layer_n < IM_ARRAYSIZE(Layers); layer_n++)
{
ImVector<ImDrawList*>& layer = Layers[layer_n];
if (layer.empty())
continue;
memcpy(&Layers[0][n], &layer[0], layer.Size * sizeof(ImDrawList*));
n += layer.Size;
layer.resize(0);
}
}
static void SetupViewportDrawData(ImGuiViewportP* viewport, ImVector<ImDrawList*>* draw_lists)
{
ImGuiIO& io = ImGui::GetIO();
ImDrawData* draw_data = &viewport->DrawDataP;
draw_data->Valid = true;
draw_data->CmdLists = (draw_lists->Size > 0) ? draw_lists->Data : NULL;
draw_data->CmdListsCount = draw_lists->Size;
draw_data->TotalVtxCount = draw_data->TotalIdxCount = 0;
draw_data->DisplayPos = viewport->Pos;
draw_data->DisplaySize = viewport->Size;
draw_data->FramebufferScale = io.DisplayFramebufferScale;
for (int n = 0; n < draw_lists->Size; n++)
{
ImDrawList* draw_list = draw_lists->Data[n];
draw_list->_PopUnusedDrawCmd();
draw_data->TotalVtxCount += draw_list->VtxBuffer.Size;
draw_data->TotalIdxCount += draw_list->IdxBuffer.Size;
}
}
// Push a clipping rectangle for both ImGui logic (hit-testing etc.) and low-level ImDrawList rendering.
// - When using this function it is sane to ensure that float are perfectly rounded to integer values,
// so that e.g. (int)(max.x-min.x) in user's render produce correct result.
// - If the code here changes, may need to update code of functions like NextColumn() and PushColumnClipRect():
// some frequently called functions which to modify both channels and clipping simultaneously tend to use the
// more specialized SetWindowClipRectBeforeSetChannel() to avoid extraneous updates of underlying ImDrawCmds.
void ImGui::PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect)
{
ImGuiWindow* window = GetCurrentWindow();
window->DrawList->PushClipRect(clip_rect_min, clip_rect_max, intersect_with_current_clip_rect);
window->ClipRect = window->DrawList->_ClipRectStack.back();
}
void ImGui::PopClipRect()
{
ImGuiWindow* window = GetCurrentWindow();
window->DrawList->PopClipRect();
window->ClipRect = window->DrawList->_ClipRectStack.back();
}
static void ImGui::RenderDimmedBackgroundBehindWindow(ImGuiWindow* window, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
ImGuiViewportP* viewport = (ImGuiViewportP*)GetMainViewport();
ImRect viewport_rect = viewport->GetMainRect();
// Draw behind window by moving the draw command at the FRONT of the draw list
{
// We've already called AddWindowToDrawData() which called DrawList->ChannelsMerge() on DockNodeHost windows,
// and draw list have been trimmed already, hence the explicit recreation of a draw command if missing.
// FIXME: This is creating complication, might be simpler if we could inject a drawlist in drawdata at a given position and not attempt to manipulate ImDrawCmd order.
ImDrawList* draw_list = window->RootWindow->DrawList;
if (draw_list->CmdBuffer.Size == 0)
draw_list->AddDrawCmd();
draw_list->PushClipRect(viewport_rect.Min - ImVec2(1, 1), viewport_rect.Max + ImVec2(1, 1), false); // Ensure ImDrawCmd are not merged
draw_list->AddRectFilled(viewport_rect.Min, viewport_rect.Max, col);
ImDrawCmd cmd = draw_list->CmdBuffer.back();
IM_ASSERT(cmd.ElemCount == 6);
draw_list->CmdBuffer.pop_back();
draw_list->CmdBuffer.push_front(cmd);
draw_list->PopClipRect();
draw_list->AddDrawCmd(); // We need to create a command as CmdBuffer.back().IdxOffset won't be correct if we append to same command.
}
}
ImGuiWindow* ImGui::FindBottomMostVisibleWindowWithinBeginStack(ImGuiWindow* parent_window)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* bottom_most_visible_window = parent_window;
for (int i = FindWindowDisplayIndex(parent_window); i >= 0; i--)
{
ImGuiWindow* window = g.Windows[i];
if (window->Flags & ImGuiWindowFlags_ChildWindow)
continue;
if (!IsWindowWithinBeginStackOf(window, parent_window))
break;
if (IsWindowActiveAndVisible(window) && GetWindowDisplayLayer(window) <= GetWindowDisplayLayer(parent_window))
bottom_most_visible_window = window;
}
return bottom_most_visible_window;
}
static void ImGui::RenderDimmedBackgrounds()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* modal_window = GetTopMostAndVisiblePopupModal();
if (g.DimBgRatio <= 0.0f && g.NavWindowingHighlightAlpha <= 0.0f)
return;
const bool dim_bg_for_modal = (modal_window != NULL);
const bool dim_bg_for_window_list = (g.NavWindowingTargetAnim != NULL && g.NavWindowingTargetAnim->Active);
if (!dim_bg_for_modal && !dim_bg_for_window_list)
return;
if (dim_bg_for_modal)
{
// Draw dimming behind modal or a begin stack child, whichever comes first in draw order.
ImGuiWindow* dim_behind_window = FindBottomMostVisibleWindowWithinBeginStack(modal_window);
RenderDimmedBackgroundBehindWindow(dim_behind_window, GetColorU32(ImGuiCol_ModalWindowDimBg, g.DimBgRatio));
}
else if (dim_bg_for_window_list)
{
// Draw dimming behind CTRL+Tab target window
RenderDimmedBackgroundBehindWindow(g.NavWindowingTargetAnim, GetColorU32(ImGuiCol_NavWindowingDimBg, g.DimBgRatio));
// Draw border around CTRL+Tab target window
ImGuiWindow* window = g.NavWindowingTargetAnim;
ImGuiViewport* viewport = GetMainViewport();
float distance = g.FontSize;
ImRect bb = window->Rect();
bb.Expand(distance);
if (bb.GetWidth() >= viewport->Size.x && bb.GetHeight() >= viewport->Size.y)
bb.Expand(-distance - 1.0f); // If a window fits the entire viewport, adjust its highlight inward
if (window->DrawList->CmdBuffer.Size == 0)
window->DrawList->AddDrawCmd();
window->DrawList->PushClipRect(viewport->Pos, viewport->Pos + viewport->Size);
window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingHighlightAlpha), window->WindowRounding, 0, 3.0f);
window->DrawList->PopClipRect();
}
}
// This is normally called by Render(). You may want to call it directly if you want to avoid calling Render() but the gain will be very minimal.
void ImGui::EndFrame()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.Initialized);
// Don't process EndFrame() multiple times.
if (g.FrameCountEnded == g.FrameCount)
return;
IM_ASSERT(g.WithinFrameScope && "Forgot to call ImGui::NewFrame()?");
CallContextHooks(&g, ImGuiContextHookType_EndFramePre);
ErrorCheckEndFrameSanityChecks();
// Notify Platform/OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
ImGuiPlatformImeData* ime_data = &g.PlatformImeData;
if (g.IO.SetPlatformImeDataFn && memcmp(ime_data, &g.PlatformImeDataPrev, sizeof(ImGuiPlatformImeData)) != 0)
{
IMGUI_DEBUG_LOG_IO("Calling io.SetPlatformImeDataFn(): WantVisible: %d, InputPos (%.2f,%.2f)\n", ime_data->WantVisible, ime_data->InputPos.x, ime_data->InputPos.y);
ImGuiViewport* viewport = GetMainViewport();
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
if (viewport->PlatformHandleRaw == NULL && g.IO.ImeWindowHandle != NULL)
{
viewport->PlatformHandleRaw = g.IO.ImeWindowHandle;
g.IO.SetPlatformImeDataFn(viewport, ime_data);
viewport->PlatformHandleRaw = NULL;
}
else
#endif
{
g.IO.SetPlatformImeDataFn(viewport, ime_data);
}
}
// Hide implicit/fallback "Debug" window if it hasn't been used
g.WithinFrameScopeWithImplicitWindow = false;
if (g.CurrentWindow && !g.CurrentWindow->WriteAccessed)
g.CurrentWindow->Active = false;
End();
// Update navigation: CTRL+Tab, wrap-around requests
NavEndFrame();
// Drag and Drop: Elapse payload (if delivered, or if source stops being submitted)
if (g.DragDropActive)
{
bool is_delivered = g.DragDropPayload.Delivery;
bool is_elapsed = (g.DragDropPayload.DataFrameCount + 1 < g.FrameCount) && ((g.DragDropSourceFlags & ImGuiDragDropFlags_SourceAutoExpirePayload) || !IsMouseDown(g.DragDropMouseButton));
if (is_delivered || is_elapsed)
ClearDragDrop();
}
// Drag and Drop: Fallback for source tooltip. This is not ideal but better than nothing.
if (g.DragDropActive && g.DragDropSourceFrameCount < g.FrameCount && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
g.DragDropWithinSource = true;
SetTooltip("...");
g.DragDropWithinSource = false;
}
// End frame
g.WithinFrameScope = false;
g.FrameCountEnded = g.FrameCount;
// Initiate moving window + handle left-click and right-click focus
UpdateMouseMovingWindowEndFrame();
// Sort the window list so that all child windows are after their parent
// We cannot do that on FocusWindow() because children may not exist yet
g.WindowsTempSortBuffer.resize(0);
g.WindowsTempSortBuffer.reserve(g.Windows.Size);
for (int i = 0; i != g.Windows.Size; i++)
{
ImGuiWindow* window = g.Windows[i];
if (window->Active && (window->Flags & ImGuiWindowFlags_ChildWindow)) // if a child is active its parent will add it
continue;
AddWindowToSortBuffer(&g.WindowsTempSortBuffer, window);
}
// This usually assert if there is a mismatch between the ImGuiWindowFlags_ChildWindow / ParentWindow values and DC.ChildWindows[] in parents, aka we've done something wrong.
IM_ASSERT(g.Windows.Size == g.WindowsTempSortBuffer.Size);
g.Windows.swap(g.WindowsTempSortBuffer);
g.IO.MetricsActiveWindows = g.WindowsActiveCount;
// Unlock font atlas
g.IO.Fonts->Locked = false;
// Clear Input data for next frame
g.IO.AppFocusLost = false;
g.IO.MouseWheel = g.IO.MouseWheelH = 0.0f;
g.IO.InputQueueCharacters.resize(0);
CallContextHooks(&g, ImGuiContextHookType_EndFramePost);
}
// Prepare the data for rendering so you can call GetDrawData()
// (As with anything within the ImGui:: namspace this doesn't touch your GPU or graphics API at all:
// it is the role of the ImGui_ImplXXXX_RenderDrawData() function provided by the renderer backend)
void ImGui::Render()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.Initialized);
if (g.FrameCountEnded != g.FrameCount)
EndFrame();
const bool first_render_of_frame = (g.FrameCountRendered != g.FrameCount);
g.FrameCountRendered = g.FrameCount;
g.IO.MetricsRenderWindows = 0;
CallContextHooks(&g, ImGuiContextHookType_RenderPre);
// Add background ImDrawList (for each active viewport)
for (int n = 0; n != g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
viewport->DrawDataBuilder.Clear();
if (viewport->DrawLists[0] != NULL)
AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetBackgroundDrawList(viewport));
}
// Draw modal/window whitening backgrounds
if (first_render_of_frame)
RenderDimmedBackgrounds();
// Add ImDrawList to render
ImGuiWindow* windows_to_render_top_most[2];
windows_to_render_top_most[0] = (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoBringToFrontOnFocus)) ? g.NavWindowingTarget->RootWindow : NULL;
windows_to_render_top_most[1] = (g.NavWindowingTarget ? g.NavWindowingListWindow : NULL);
for (int n = 0; n != g.Windows.Size; n++)
{
ImGuiWindow* window = g.Windows[n];
IM_MSVC_WARNING_SUPPRESS(6011); // Static Analysis false positive "warning C6011: Dereferencing NULL pointer 'window'"
if (IsWindowActiveAndVisible(window) && (window->Flags & ImGuiWindowFlags_ChildWindow) == 0 && window != windows_to_render_top_most[0] && window != windows_to_render_top_most[1])
AddRootWindowToDrawData(window);
}
for (int n = 0; n < IM_ARRAYSIZE(windows_to_render_top_most); n++)
if (windows_to_render_top_most[n] && IsWindowActiveAndVisible(windows_to_render_top_most[n])) // NavWindowingTarget is always temporarily displayed as the top-most window
AddRootWindowToDrawData(windows_to_render_top_most[n]);
// Draw software mouse cursor if requested by io.MouseDrawCursor flag
if (g.IO.MouseDrawCursor && first_render_of_frame && g.MouseCursor != ImGuiMouseCursor_None)
RenderMouseCursor(g.IO.MousePos, g.Style.MouseCursorScale, g.MouseCursor, IM_COL32_WHITE, IM_COL32_BLACK, IM_COL32(0, 0, 0, 48));
// Setup ImDrawData structures for end-user
g.IO.MetricsRenderVertices = g.IO.MetricsRenderIndices = 0;
for (int n = 0; n < g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
viewport->DrawDataBuilder.FlattenIntoSingleLayer();
// Add foreground ImDrawList (for each active viewport)
if (viewport->DrawLists[1] != NULL)
AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetForegroundDrawList(viewport));
SetupViewportDrawData(viewport, &viewport->DrawDataBuilder.Layers[0]);
ImDrawData* draw_data = &viewport->DrawDataP;
g.IO.MetricsRenderVertices += draw_data->TotalVtxCount;
g.IO.MetricsRenderIndices += draw_data->TotalIdxCount;
}
CallContextHooks(&g, ImGuiContextHookType_RenderPost);
}
// Calculate text size. Text can be multi-line. Optionally ignore text after a ## marker.
// CalcTextSize("") should return ImVec2(0.0f, g.FontSize)
ImVec2 ImGui::CalcTextSize(const char* text, const char* text_end, bool hide_text_after_double_hash, float wrap_width)
{
ImGuiContext& g = *GImGui;
const char* text_display_end;
if (hide_text_after_double_hash)
text_display_end = FindRenderedTextEnd(text, text_end); // Hide anything after a '##' string
else
text_display_end = text_end;
ImFont* font = g.Font;
const float font_size = g.FontSize;
if (text == text_display_end)
return ImVec2(0.0f, font_size);
ImVec2 text_size = font->CalcTextSizeA(font_size, FLT_MAX, wrap_width, text, text_display_end, NULL);
// Round
// FIXME: This has been here since Dec 2015 (7b0bf230) but down the line we want this out.
// FIXME: Investigate using ceilf or e.g.
// - https://git.musl-libc.org/cgit/musl/tree/src/math/ceilf.c
// - https://embarkstudios.github.io/rust-gpu/api/src/libm/math/ceilf.rs.html
text_size.x = IM_FLOOR(text_size.x + 0.99999f);
return text_size;
}
// Find window given position, search front-to-back
// FIXME: Note that we have an inconsequential lag here: OuterRectClipped is updated in Begin(), so windows moved programmatically
// with SetWindowPos() and not SetNextWindowPos() will have that rectangle lagging by a frame at the time FindHoveredWindow() is
// called, aka before the next Begin(). Moving window isn't affected.
static void FindHoveredWindow()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* hovered_window = NULL;
ImGuiWindow* hovered_window_ignoring_moving_window = NULL;
if (g.MovingWindow && !(g.MovingWindow->Flags & ImGuiWindowFlags_NoMouseInputs))
hovered_window = g.MovingWindow;
ImVec2 padding_regular = g.Style.TouchExtraPadding;
ImVec2 padding_for_resize = g.IO.ConfigWindowsResizeFromEdges ? g.WindowsHoverPadding : padding_regular;
for (int i = g.Windows.Size - 1; i >= 0; i--)
{
ImGuiWindow* window = g.Windows[i];
IM_MSVC_WARNING_SUPPRESS(28182); // [Static Analyzer] Dereferencing NULL pointer.
if (!window->Active || window->Hidden)
continue;
if (window->Flags & ImGuiWindowFlags_NoMouseInputs)
continue;
// Using the clipped AABB, a child window will typically be clipped by its parent (not always)
ImRect bb(window->OuterRectClipped);
if (window->Flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_AlwaysAutoResize))
bb.Expand(padding_regular);
else
bb.Expand(padding_for_resize);
if (!bb.Contains(g.IO.MousePos))
continue;
// Support for one rectangular hole in any given window
// FIXME: Consider generalizing hit-testing override (with more generic data, callback, etc.) (#1512)
if (window->HitTestHoleSize.x != 0)
{
ImVec2 hole_pos(window->Pos.x + (float)window->HitTestHoleOffset.x, window->Pos.y + (float)window->HitTestHoleOffset.y);
ImVec2 hole_size((float)window->HitTestHoleSize.x, (float)window->HitTestHoleSize.y);
if (ImRect(hole_pos, hole_pos + hole_size).Contains(g.IO.MousePos))
continue;
}
if (hovered_window == NULL)
hovered_window = window;
IM_MSVC_WARNING_SUPPRESS(28182); // [Static Analyzer] Dereferencing NULL pointer.
if (hovered_window_ignoring_moving_window == NULL && (!g.MovingWindow || window->RootWindow != g.MovingWindow->RootWindow))
hovered_window_ignoring_moving_window = window;
if (hovered_window && hovered_window_ignoring_moving_window)
break;
}
g.HoveredWindow = hovered_window;
g.HoveredWindowUnderMovingWindow = hovered_window_ignoring_moving_window;
}
bool ImGui::IsItemActive()
{
ImGuiContext& g = *GImGui;
if (g.ActiveId)
return g.ActiveId == g.LastItemData.ID;
return false;
}
bool ImGui::IsItemActivated()
{
ImGuiContext& g = *GImGui;
if (g.ActiveId)
if (g.ActiveId == g.LastItemData.ID && g.ActiveIdPreviousFrame != g.LastItemData.ID)
return true;
return false;
}
bool ImGui::IsItemDeactivated()
{
ImGuiContext& g = *GImGui;
if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HasDeactivated)
return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Deactivated) != 0;
return (g.ActiveIdPreviousFrame == g.LastItemData.ID && g.ActiveIdPreviousFrame != 0 && g.ActiveId != g.LastItemData.ID);
}
bool ImGui::IsItemDeactivatedAfterEdit()
{
ImGuiContext& g = *GImGui;
return IsItemDeactivated() && (g.ActiveIdPreviousFrameHasBeenEditedBefore || (g.ActiveId == 0 && g.ActiveIdHasBeenEditedBefore));
}
// == GetItemID() == GetFocusID()
bool ImGui::IsItemFocused()
{
ImGuiContext& g = *GImGui;
if (g.NavId != g.LastItemData.ID || g.NavId == 0)
return false;
return true;
}
// Important: this can be useful but it is NOT equivalent to the behavior of e.g.Button()!
// Most widgets have specific reactions based on mouse-up/down state, mouse position etc.
bool ImGui::IsItemClicked(ImGuiMouseButton mouse_button)
{
return IsMouseClicked(mouse_button) && IsItemHovered(ImGuiHoveredFlags_None);
}
bool ImGui::IsItemToggledOpen()
{
ImGuiContext& g = *GImGui;
return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_ToggledOpen) ? true : false;
}
bool ImGui::IsItemToggledSelection()
{
ImGuiContext& g = *GImGui;
return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_ToggledSelection) ? true : false;
}
bool ImGui::IsAnyItemHovered()
{
ImGuiContext& g = *GImGui;
return g.HoveredId != 0 || g.HoveredIdPreviousFrame != 0;
}
bool ImGui::IsAnyItemActive()
{
ImGuiContext& g = *GImGui;
return g.ActiveId != 0;
}
bool ImGui::IsAnyItemFocused()
{
ImGuiContext& g = *GImGui;
return g.NavId != 0 && !g.NavDisableHighlight;
}
bool ImGui::IsItemVisible()
{
ImGuiContext& g = *GImGui;
return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Visible) != 0;
}
bool ImGui::IsItemEdited()
{
ImGuiContext& g = *GImGui;
return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Edited) != 0;
}
// Allow last item to be overlapped by a subsequent item. Both may be activated during the same frame before the later one takes priority.
// FIXME: Although this is exposed, its interaction and ideal idiom with using ImGuiButtonFlags_AllowItemOverlap flag are extremely confusing, need rework.
void ImGui::SetItemAllowOverlap()
{
ImGuiContext& g = *GImGui;
ImGuiID id = g.LastItemData.ID;
if (g.HoveredId == id)
g.HoveredIdAllowOverlap = true;
if (g.ActiveId == id)
g.ActiveIdAllowOverlap = true;
}
// FIXME: It might be undesirable that this will likely disable KeyOwner-aware shortcuts systems. Consider a more fine-tuned version for the two users of this function.
void ImGui::SetActiveIdUsingAllKeyboardKeys()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.ActiveId != 0);
g.ActiveIdUsingNavDirMask = (1 << ImGuiDir_COUNT) - 1;
g.ActiveIdUsingAllKeyboardKeys = true;
NavMoveRequestCancel();
}
ImGuiID ImGui::GetItemID()
{
ImGuiContext& g = *GImGui;
return g.LastItemData.ID;
}
ImVec2 ImGui::GetItemRectMin()
{
ImGuiContext& g = *GImGui;
return g.LastItemData.Rect.Min;
}
ImVec2 ImGui::GetItemRectMax()
{
ImGuiContext& g = *GImGui;
return g.LastItemData.Rect.Max;
}
ImVec2 ImGui::GetItemRectSize()
{
ImGuiContext& g = *GImGui;
return g.LastItemData.Rect.GetSize();
}
bool ImGui::BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* parent_window = g.CurrentWindow;
flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_ChildWindow;
flags |= (parent_window->Flags & ImGuiWindowFlags_NoMove); // Inherit the NoMove flag
// Size
const ImVec2 content_avail = GetContentRegionAvail();
ImVec2 size = ImFloor(size_arg);
const int auto_fit_axises = ((size.x == 0.0f) ? (1 << ImGuiAxis_X) : 0x00) | ((size.y == 0.0f) ? (1 << ImGuiAxis_Y) : 0x00);
if (size.x <= 0.0f)
size.x = ImMax(content_avail.x + size.x, 4.0f); // Arbitrary minimum child size (0.0f causing too many issues)
if (size.y <= 0.0f)
size.y = ImMax(content_avail.y + size.y, 4.0f);
SetNextWindowSize(size);
// Build up name. If you need to append to a same child from multiple location in the ID stack, use BeginChild(ImGuiID id) with a stable value.
const char* temp_window_name;
if (name)
ImFormatStringToTempBuffer(&temp_window_name, NULL, "%s/%s_%08X", parent_window->Name, name, id);
else
ImFormatStringToTempBuffer(&temp_window_name, NULL, "%s/%08X", parent_window->Name, id);
const float backup_border_size = g.Style.ChildBorderSize;
if (!border)
g.Style.ChildBorderSize = 0.0f;
bool ret = Begin(temp_window_name, NULL, flags);
g.Style.ChildBorderSize = backup_border_size;
ImGuiWindow* child_window = g.CurrentWindow;
child_window->ChildId = id;
child_window->AutoFitChildAxises = (ImS8)auto_fit_axises;
// Set the cursor to handle case where the user called SetNextWindowPos()+BeginChild() manually.
// While this is not really documented/defined, it seems that the expected thing to do.
if (child_window->BeginCount == 1)
parent_window->DC.CursorPos = child_window->Pos;
// Process navigation-in immediately so NavInit can run on first frame
if (g.NavActivateId == id && !(flags & ImGuiWindowFlags_NavFlattened) && (child_window->DC.NavLayersActiveMask != 0 || child_window->DC.NavHasScroll))
{
FocusWindow(child_window);
NavInitWindow(child_window, false);
SetActiveID(id + 1, child_window); // Steal ActiveId with another arbitrary id so that key-press won't activate child item
g.ActiveIdSource = ImGuiInputSource_Nav;
}
return ret;
}
bool ImGui::BeginChild(const char* str_id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)
{
ImGuiWindow* window = GetCurrentWindow();
return BeginChildEx(str_id, window->GetID(str_id), size_arg, border, extra_flags);
}
bool ImGui::BeginChild(ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)
{
IM_ASSERT(id != 0);
return BeginChildEx(NULL, id, size_arg, border, extra_flags);
}
void ImGui::EndChild()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(g.WithinEndChild == false);
IM_ASSERT(window->Flags & ImGuiWindowFlags_ChildWindow); // Mismatched BeginChild()/EndChild() calls
g.WithinEndChild = true;
if (window->BeginCount > 1)
{
End();
}
else
{
ImVec2 sz = window->Size;
if (window->AutoFitChildAxises & (1 << ImGuiAxis_X)) // Arbitrary minimum zero-ish child size of 4.0f causes less trouble than a 0.0f
sz.x = ImMax(4.0f, sz.x);
if (window->AutoFitChildAxises & (1 << ImGuiAxis_Y))
sz.y = ImMax(4.0f, sz.y);
End();
ImGuiWindow* parent_window = g.CurrentWindow;
ImRect bb(parent_window->DC.CursorPos, parent_window->DC.CursorPos + sz);
ItemSize(sz);
if ((window->DC.NavLayersActiveMask != 0 || window->DC.NavHasScroll) && !(window->Flags & ImGuiWindowFlags_NavFlattened))
{
ItemAdd(bb, window->ChildId);
RenderNavHighlight(bb, window->ChildId);
// When browsing a window that has no activable items (scroll only) we keep a highlight on the child (pass g.NavId to trick into always displaying)
if (window->DC.NavLayersActiveMask == 0 && window == g.NavWindow)
RenderNavHighlight(ImRect(bb.Min - ImVec2(2, 2), bb.Max + ImVec2(2, 2)), g.NavId, ImGuiNavHighlightFlags_TypeThin);
}
else
{
// Not navigable into
ItemAdd(bb, 0);
}
if (g.HoveredWindow == window)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredWindow;
}
g.WithinEndChild = false;
g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
}
// Helper to create a child window / scrolling region that looks like a normal widget frame.
bool ImGui::BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags extra_flags)
{
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
PushStyleColor(ImGuiCol_ChildBg, style.Colors[ImGuiCol_FrameBg]);
PushStyleVar(ImGuiStyleVar_ChildRounding, style.FrameRounding);
PushStyleVar(ImGuiStyleVar_ChildBorderSize, style.FrameBorderSize);
PushStyleVar(ImGuiStyleVar_WindowPadding, style.FramePadding);
bool ret = BeginChild(id, size, true, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_AlwaysUseWindowPadding | extra_flags);
PopStyleVar(3);
PopStyleColor();
return ret;
}
void ImGui::EndChildFrame()
{
EndChild();
}
static void SetWindowConditionAllowFlags(ImGuiWindow* window, ImGuiCond flags, bool enabled)
{
window->SetWindowPosAllowFlags = enabled ? (window->SetWindowPosAllowFlags | flags) : (window->SetWindowPosAllowFlags & ~flags);
window->SetWindowSizeAllowFlags = enabled ? (window->SetWindowSizeAllowFlags | flags) : (window->SetWindowSizeAllowFlags & ~flags);
window->SetWindowCollapsedAllowFlags = enabled ? (window->SetWindowCollapsedAllowFlags | flags) : (window->SetWindowCollapsedAllowFlags & ~flags);
}
ImGuiWindow* ImGui::FindWindowByID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
return (ImGuiWindow*)g.WindowsById.GetVoidPtr(id);
}
ImGuiWindow* ImGui::FindWindowByName(const char* name)
{
ImGuiID id = ImHashStr(name);
return FindWindowByID(id);
}
static void ApplyWindowSettings(ImGuiWindow* window, ImGuiWindowSettings* settings)
{
window->Pos = ImFloor(ImVec2(settings->Pos.x, settings->Pos.y));
if (settings->Size.x > 0 && settings->Size.y > 0)
window->Size = window->SizeFull = ImFloor(ImVec2(settings->Size.x, settings->Size.y));
window->Collapsed = settings->Collapsed;
}
static void UpdateWindowInFocusOrderList(ImGuiWindow* window, bool just_created, ImGuiWindowFlags new_flags)
{
ImGuiContext& g = *GImGui;
const bool new_is_explicit_child = (new_flags & ImGuiWindowFlags_ChildWindow) != 0 && ((new_flags & ImGuiWindowFlags_Popup) == 0 || (new_flags & ImGuiWindowFlags_ChildMenu) != 0);
const bool child_flag_changed = new_is_explicit_child != window->IsExplicitChild;
if ((just_created || child_flag_changed) && !new_is_explicit_child)
{
IM_ASSERT(!g.WindowsFocusOrder.contains(window));
g.WindowsFocusOrder.push_back(window);
window->FocusOrder = (short)(g.WindowsFocusOrder.Size - 1);
}
else if (!just_created && child_flag_changed && new_is_explicit_child)
{
IM_ASSERT(g.WindowsFocusOrder[window->FocusOrder] == window);
for (int n = window->FocusOrder + 1; n < g.WindowsFocusOrder.Size; n++)
g.WindowsFocusOrder[n]->FocusOrder--;
g.WindowsFocusOrder.erase(g.WindowsFocusOrder.Data + window->FocusOrder);
window->FocusOrder = -1;
}
window->IsExplicitChild = new_is_explicit_child;
}
static void InitOrLoadWindowSettings(ImGuiWindow* window, ImGuiWindowSettings* settings)
{
// Initial window state with e.g. default/arbitrary window position
// Use SetNextWindowPos() with the appropriate condition flag to change the initial position of a window.
const ImGuiViewport* main_viewport = ImGui::GetMainViewport();
window->Pos = main_viewport->Pos + ImVec2(60, 60);
window->SetWindowPosAllowFlags = window->SetWindowSizeAllowFlags = window->SetWindowCollapsedAllowFlags = ImGuiCond_Always | ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing;
if (settings != NULL)
{
SetWindowConditionAllowFlags(window, ImGuiCond_FirstUseEver, false);
ApplyWindowSettings(window, settings);
}
window->DC.CursorStartPos = window->DC.CursorMaxPos = window->DC.IdealMaxPos = window->Pos; // So first call to CalcWindowContentSizes() doesn't return crazy values
if ((window->Flags & ImGuiWindowFlags_AlwaysAutoResize) != 0)
{
window->AutoFitFramesX = window->AutoFitFramesY = 2;
window->AutoFitOnlyGrows = false;
}
else
{
if (window->Size.x <= 0.0f)
window->AutoFitFramesX = 2;
if (window->Size.y <= 0.0f)
window->AutoFitFramesY = 2;
window->AutoFitOnlyGrows = (window->AutoFitFramesX > 0) || (window->AutoFitFramesY > 0);
}
}
static ImGuiWindow* CreateNewWindow(const char* name, ImGuiWindowFlags flags)
{
// Create window the first time
//IMGUI_DEBUG_LOG("CreateNewWindow '%s', flags = 0x%08X\n", name, flags);
ImGuiContext& g = *GImGui;
ImGuiWindow* window = IM_NEW(ImGuiWindow)(&g, name);
window->Flags = flags;
g.WindowsById.SetVoidPtr(window->ID, window);
ImGuiWindowSettings* settings = NULL;
if (!(flags & ImGuiWindowFlags_NoSavedSettings))
if ((settings = ImGui::FindWindowSettingsByWindow(window)) != 0)
window->SettingsOffset = g.SettingsWindows.offset_from_ptr(settings);
InitOrLoadWindowSettings(window, settings);
if (flags & ImGuiWindowFlags_NoBringToFrontOnFocus)
g.Windows.push_front(window); // Quite slow but rare and only once
else
g.Windows.push_back(window);
return window;
}
static ImVec2 CalcWindowSizeAfterConstraint(ImGuiWindow* window, const ImVec2& size_desired)
{
ImGuiContext& g = *GImGui;
ImVec2 new_size = size_desired;
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSizeConstraint)
{
// Using -1,-1 on either X/Y axis to preserve the current size.
ImRect cr = g.NextWindowData.SizeConstraintRect;
new_size.x = (cr.Min.x >= 0 && cr.Max.x >= 0) ? ImClamp(new_size.x, cr.Min.x, cr.Max.x) : window->SizeFull.x;
new_size.y = (cr.Min.y >= 0 && cr.Max.y >= 0) ? ImClamp(new_size.y, cr.Min.y, cr.Max.y) : window->SizeFull.y;
if (g.NextWindowData.SizeCallback)
{
ImGuiSizeCallbackData data;
data.UserData = g.NextWindowData.SizeCallbackUserData;
data.Pos = window->Pos;
data.CurrentSize = window->SizeFull;
data.DesiredSize = new_size;
g.NextWindowData.SizeCallback(&data);
new_size = data.DesiredSize;
}
new_size.x = IM_FLOOR(new_size.x);
new_size.y = IM_FLOOR(new_size.y);
}
// Minimum size
if (!(window->Flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_AlwaysAutoResize)))
{
ImGuiWindow* window_for_height = window;
new_size = ImMax(new_size, g.Style.WindowMinSize);
const float minimum_height = window_for_height->TitleBarHeight() + window_for_height->MenuBarHeight() + ImMax(0.0f, g.Style.WindowRounding - 1.0f);
new_size.y = ImMax(new_size.y, minimum_height); // Reduce artifacts with very small windows
}
return new_size;
}
static void CalcWindowContentSizes(ImGuiWindow* window, ImVec2* content_size_current, ImVec2* content_size_ideal)
{
bool preserve_old_content_sizes = false;
if (window->Collapsed && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0)
preserve_old_content_sizes = true;
else if (window->Hidden && window->HiddenFramesCannotSkipItems == 0 && window->HiddenFramesCanSkipItems > 0)
preserve_old_content_sizes = true;
if (preserve_old_content_sizes)
{
*content_size_current = window->ContentSize;
*content_size_ideal = window->ContentSizeIdeal;
return;
}
content_size_current->x = (window->ContentSizeExplicit.x != 0.0f) ? window->ContentSizeExplicit.x : IM_FLOOR(window->DC.CursorMaxPos.x - window->DC.CursorStartPos.x);
content_size_current->y = (window->ContentSizeExplicit.y != 0.0f) ? window->ContentSizeExplicit.y : IM_FLOOR(window->DC.CursorMaxPos.y - window->DC.CursorStartPos.y);
content_size_ideal->x = (window->ContentSizeExplicit.x != 0.0f) ? window->ContentSizeExplicit.x : IM_FLOOR(ImMax(window->DC.CursorMaxPos.x, window->DC.IdealMaxPos.x) - window->DC.CursorStartPos.x);
content_size_ideal->y = (window->ContentSizeExplicit.y != 0.0f) ? window->ContentSizeExplicit.y : IM_FLOOR(ImMax(window->DC.CursorMaxPos.y, window->DC.IdealMaxPos.y) - window->DC.CursorStartPos.y);
}
static ImVec2 CalcWindowAutoFitSize(ImGuiWindow* window, const ImVec2& size_contents)
{
ImGuiContext& g = *GImGui;
ImGuiStyle& style = g.Style;
const float decoration_w_without_scrollbars = window->DecoOuterSizeX1 + window->DecoOuterSizeX2 - window->ScrollbarSizes.x;
const float decoration_h_without_scrollbars = window->DecoOuterSizeY1 + window->DecoOuterSizeY2 - window->ScrollbarSizes.y;
ImVec2 size_pad = window->WindowPadding * 2.0f;
ImVec2 size_desired = size_contents + size_pad + ImVec2(decoration_w_without_scrollbars, decoration_h_without_scrollbars);
if (window->Flags & ImGuiWindowFlags_Tooltip)
{
// Tooltip always resize
return size_desired;
}
else
{
// Maximum window size is determined by the viewport size or monitor size
const bool is_popup = (window->Flags & ImGuiWindowFlags_Popup) != 0;
const bool is_menu = (window->Flags & ImGuiWindowFlags_ChildMenu) != 0;
ImVec2 size_min = style.WindowMinSize;
if (is_popup || is_menu) // Popups and menus bypass style.WindowMinSize by default, but we give then a non-zero minimum size to facilitate understanding problematic cases (e.g. empty popups)
size_min = ImMin(size_min, ImVec2(4.0f, 4.0f));
ImVec2 avail_size = ImGui::GetMainViewport()->WorkSize;
ImVec2 size_auto_fit = ImClamp(size_desired, size_min, ImMax(size_min, avail_size - style.DisplaySafeAreaPadding * 2.0f));
// When the window cannot fit all contents (either because of constraints, either because screen is too small),
// we are growing the size on the other axis to compensate for expected scrollbar. FIXME: Might turn bigger than ViewportSize-WindowPadding.
ImVec2 size_auto_fit_after_constraint = CalcWindowSizeAfterConstraint(window, size_auto_fit);
bool will_have_scrollbar_x = (size_auto_fit_after_constraint.x - size_pad.x - decoration_w_without_scrollbars < size_contents.x && !(window->Flags & ImGuiWindowFlags_NoScrollbar) && (window->Flags & ImGuiWindowFlags_HorizontalScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar);
bool will_have_scrollbar_y = (size_auto_fit_after_constraint.y - size_pad.y - decoration_h_without_scrollbars < size_contents.y && !(window->Flags & ImGuiWindowFlags_NoScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysVerticalScrollbar);
if (will_have_scrollbar_x)
size_auto_fit.y += style.ScrollbarSize;
if (will_have_scrollbar_y)
size_auto_fit.x += style.ScrollbarSize;
return size_auto_fit;
}
}
ImVec2 ImGui::CalcWindowNextAutoFitSize(ImGuiWindow* window)
{
ImVec2 size_contents_current;
ImVec2 size_contents_ideal;
CalcWindowContentSizes(window, &size_contents_current, &size_contents_ideal);
ImVec2 size_auto_fit = CalcWindowAutoFitSize(window, size_contents_ideal);
ImVec2 size_final = CalcWindowSizeAfterConstraint(window, size_auto_fit);
return size_final;
}
static ImGuiCol GetWindowBgColorIdx(ImGuiWindow* window)
{
if (window->Flags & (ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_Popup))
return ImGuiCol_PopupBg;
if (window->Flags & ImGuiWindowFlags_ChildWindow)
return ImGuiCol_ChildBg;
return ImGuiCol_WindowBg;
}
static void CalcResizePosSizeFromAnyCorner(ImGuiWindow* window, const ImVec2& corner_target, const ImVec2& corner_norm, ImVec2* out_pos, ImVec2* out_size)
{
ImVec2 pos_min = ImLerp(corner_target, window->Pos, corner_norm); // Expected window upper-left
ImVec2 pos_max = ImLerp(window->Pos + window->Size, corner_target, corner_norm); // Expected window lower-right
ImVec2 size_expected = pos_max - pos_min;
ImVec2 size_constrained = CalcWindowSizeAfterConstraint(window, size_expected);
*out_pos = pos_min;
if (corner_norm.x == 0.0f)
out_pos->x -= (size_constrained.x - size_expected.x);
if (corner_norm.y == 0.0f)
out_pos->y -= (size_constrained.y - size_expected.y);
*out_size = size_constrained;
}
// Data for resizing from corner
struct ImGuiResizeGripDef
{
ImVec2 CornerPosN;
ImVec2 InnerDir;
int AngleMin12, AngleMax12;
};
static const ImGuiResizeGripDef resize_grip_def[4] =
{
{ ImVec2(1, 1), ImVec2(-1, -1), 0, 3 }, // Lower-right
{ ImVec2(0, 1), ImVec2(+1, -1), 3, 6 }, // Lower-left
{ ImVec2(0, 0), ImVec2(+1, +1), 6, 9 }, // Upper-left (Unused)
{ ImVec2(1, 0), ImVec2(-1, +1), 9, 12 } // Upper-right (Unused)
};
// Data for resizing from borders
struct ImGuiResizeBorderDef
{
ImVec2 InnerDir;
ImVec2 SegmentN1, SegmentN2;
float OuterAngle;
};
static const ImGuiResizeBorderDef resize_border_def[4] =
{
{ ImVec2(+1, 0), ImVec2(0, 1), ImVec2(0, 0), IM_PI * 1.00f }, // Left
{ ImVec2(-1, 0), ImVec2(1, 0), ImVec2(1, 1), IM_PI * 0.00f }, // Right
{ ImVec2(0, +1), ImVec2(0, 0), ImVec2(1, 0), IM_PI * 1.50f }, // Up
{ ImVec2(0, -1), ImVec2(1, 1), ImVec2(0, 1), IM_PI * 0.50f } // Down
};
static ImRect GetResizeBorderRect(ImGuiWindow* window, int border_n, float perp_padding, float thickness)
{
ImRect rect = window->Rect();
if (thickness == 0.0f)
rect.Max -= ImVec2(1, 1);
if (border_n == ImGuiDir_Left) { return ImRect(rect.Min.x - thickness, rect.Min.y + perp_padding, rect.Min.x + thickness, rect.Max.y - perp_padding); }
if (border_n == ImGuiDir_Right) { return ImRect(rect.Max.x - thickness, rect.Min.y + perp_padding, rect.Max.x + thickness, rect.Max.y - perp_padding); }
if (border_n == ImGuiDir_Up) { return ImRect(rect.Min.x + perp_padding, rect.Min.y - thickness, rect.Max.x - perp_padding, rect.Min.y + thickness); }
if (border_n == ImGuiDir_Down) { return ImRect(rect.Min.x + perp_padding, rect.Max.y - thickness, rect.Max.x - perp_padding, rect.Max.y + thickness); }
IM_ASSERT(0);
return ImRect();
}
// 0..3: corners (Lower-right, Lower-left, Unused, Unused)
ImGuiID ImGui::GetWindowResizeCornerID(ImGuiWindow* window, int n)
{
IM_ASSERT(n >= 0 && n < 4);
ImGuiID id = window->ID;
id = ImHashStr("#RESIZE", 0, id);
id = ImHashData(&n, sizeof(int), id);
return id;
}
// Borders (Left, Right, Up, Down)
ImGuiID ImGui::GetWindowResizeBorderID(ImGuiWindow* window, ImGuiDir dir)
{
IM_ASSERT(dir >= 0 && dir < 4);
int n = (int)dir + 4;
ImGuiID id = window->ID;
id = ImHashStr("#RESIZE", 0, id);
id = ImHashData(&n, sizeof(int), id);
return id;
}
// Handle resize for: Resize Grips, Borders, Gamepad
// Return true when using auto-fit (double-click on resize grip)
static bool ImGui::UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4], const ImRect& visibility_rect)
{
ImGuiContext& g = *GImGui;
ImGuiWindowFlags flags = window->Flags;
if ((flags & ImGuiWindowFlags_NoResize) || (flags & ImGuiWindowFlags_AlwaysAutoResize) || window->AutoFitFramesX > 0 || window->AutoFitFramesY > 0)
return false;
if (window->WasActive == false) // Early out to avoid running this code for e.g. a hidden implicit/fallback Debug window.
return false;
bool ret_auto_fit = false;
const int resize_border_count = g.IO.ConfigWindowsResizeFromEdges ? 4 : 0;
const float grip_draw_size = IM_FLOOR(ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f));
const float grip_hover_inner_size = IM_FLOOR(grip_draw_size * 0.75f);
const float grip_hover_outer_size = g.IO.ConfigWindowsResizeFromEdges ? WINDOWS_HOVER_PADDING : 0.0f;
ImVec2 pos_target(FLT_MAX, FLT_MAX);
ImVec2 size_target(FLT_MAX, FLT_MAX);
// Resize grips and borders are on layer 1
window->DC.NavLayerCurrent = ImGuiNavLayer_Menu;
// Manual resize grips
PushID("#RESIZE");
for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
{
const ImGuiResizeGripDef& def = resize_grip_def[resize_grip_n];
const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, def.CornerPosN);
// Using the FlattenChilds button flag we make the resize button accessible even if we are hovering over a child window
bool hovered, held;
ImRect resize_rect(corner - def.InnerDir * grip_hover_outer_size, corner + def.InnerDir * grip_hover_inner_size);
if (resize_rect.Min.x > resize_rect.Max.x) ImSwap(resize_rect.Min.x, resize_rect.Max.x);
if (resize_rect.Min.y > resize_rect.Max.y) ImSwap(resize_rect.Min.y, resize_rect.Max.y);
ImGuiID resize_grip_id = window->GetID(resize_grip_n); // == GetWindowResizeCornerID()
ItemAdd(resize_rect, resize_grip_id, NULL, ImGuiItemFlags_NoNav);
ButtonBehavior(resize_rect, resize_grip_id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_NoNavFocus);
//GetForegroundDrawList(window)->AddRect(resize_rect.Min, resize_rect.Max, IM_COL32(255, 255, 0, 255));
if (hovered || held)
g.MouseCursor = (resize_grip_n & 1) ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
if (held && g.IO.MouseClickedCount[0] == 2 && resize_grip_n == 0)
{
// Manual auto-fit when double-clicking
size_target = CalcWindowSizeAfterConstraint(window, size_auto_fit);
ret_auto_fit = true;
ClearActiveID();
}
else if (held)
{
// Resize from any of the four corners
// We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position
ImVec2 clamp_min = ImVec2(def.CornerPosN.x == 1.0f ? visibility_rect.Min.x : -FLT_MAX, def.CornerPosN.y == 1.0f ? visibility_rect.Min.y : -FLT_MAX);
ImVec2 clamp_max = ImVec2(def.CornerPosN.x == 0.0f ? visibility_rect.Max.x : +FLT_MAX, def.CornerPosN.y == 0.0f ? visibility_rect.Max.y : +FLT_MAX);
ImVec2 corner_target = g.IO.MousePos - g.ActiveIdClickOffset + ImLerp(def.InnerDir * grip_hover_outer_size, def.InnerDir * -grip_hover_inner_size, def.CornerPosN); // Corner of the window corresponding to our corner grip
corner_target = ImClamp(corner_target, clamp_min, clamp_max);
CalcResizePosSizeFromAnyCorner(window, corner_target, def.CornerPosN, &pos_target, &size_target);
}
// Only lower-left grip is visible before hovering/activating
if (resize_grip_n == 0 || held || hovered)
resize_grip_col[resize_grip_n] = GetColorU32(held ? ImGuiCol_ResizeGripActive : hovered ? ImGuiCol_ResizeGripHovered : ImGuiCol_ResizeGrip);
}
for (int border_n = 0; border_n < resize_border_count; border_n++)
{
const ImGuiResizeBorderDef& def = resize_border_def[border_n];
const ImGuiAxis axis = (border_n == ImGuiDir_Left || border_n == ImGuiDir_Right) ? ImGuiAxis_X : ImGuiAxis_Y;
bool hovered, held;
ImRect border_rect = GetResizeBorderRect(window, border_n, grip_hover_inner_size, WINDOWS_HOVER_PADDING);
ImGuiID border_id = window->GetID(border_n + 4); // == GetWindowResizeBorderID()
ItemAdd(border_rect, border_id, NULL, ImGuiItemFlags_NoNav);
ButtonBehavior(border_rect, border_id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_NoNavFocus);
//GetForegroundDrawLists(window)->AddRect(border_rect.Min, border_rect.Max, IM_COL32(255, 255, 0, 255));
if ((hovered && g.HoveredIdTimer > WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER) || held)
{
g.MouseCursor = (axis == ImGuiAxis_X) ? ImGuiMouseCursor_ResizeEW : ImGuiMouseCursor_ResizeNS;
if (held)
*border_held = border_n;
}
if (held)
{
ImVec2 clamp_min(border_n == ImGuiDir_Right ? visibility_rect.Min.x : -FLT_MAX, border_n == ImGuiDir_Down ? visibility_rect.Min.y : -FLT_MAX);
ImVec2 clamp_max(border_n == ImGuiDir_Left ? visibility_rect.Max.x : +FLT_MAX, border_n == ImGuiDir_Up ? visibility_rect.Max.y : +FLT_MAX);
ImVec2 border_target = window->Pos;
border_target[axis] = g.IO.MousePos[axis] - g.ActiveIdClickOffset[axis] + WINDOWS_HOVER_PADDING;
border_target = ImClamp(border_target, clamp_min, clamp_max);
CalcResizePosSizeFromAnyCorner(window, border_target, ImMin(def.SegmentN1, def.SegmentN2), &pos_target, &size_target);
}
}
PopID();
// Restore nav layer
window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
// Navigation resize (keyboard/gamepad)
// FIXME: This cannot be moved to NavUpdateWindowing() because CalcWindowSizeAfterConstraint() need to callback into user.
// Not even sure the callback works here.
if (g.NavWindowingTarget && g.NavWindowingTarget->RootWindow == window)
{
ImVec2 nav_resize_dir;
if (g.NavInputSource == ImGuiInputSource_Keyboard && g.IO.KeyShift)
nav_resize_dir = GetKeyMagnitude2d(ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow);
if (g.NavInputSource == ImGuiInputSource_Gamepad)
nav_resize_dir = GetKeyMagnitude2d(ImGuiKey_GamepadDpadLeft, ImGuiKey_GamepadDpadRight, ImGuiKey_GamepadDpadUp, ImGuiKey_GamepadDpadDown);
if (nav_resize_dir.x != 0.0f || nav_resize_dir.y != 0.0f)
{
const float NAV_RESIZE_SPEED = 600.0f;
const float resize_step = NAV_RESIZE_SPEED * g.IO.DeltaTime * ImMin(g.IO.DisplayFramebufferScale.x, g.IO.DisplayFramebufferScale.y);
g.NavWindowingAccumDeltaSize += nav_resize_dir * resize_step;
g.NavWindowingAccumDeltaSize = ImMax(g.NavWindowingAccumDeltaSize, visibility_rect.Min - window->Pos - window->Size); // We need Pos+Size >= visibility_rect.Min, so Size >= visibility_rect.Min - Pos, so size_delta >= visibility_rect.Min - window->Pos - window->Size
g.NavWindowingToggleLayer = false;
g.NavDisableMouseHover = true;
resize_grip_col[0] = GetColorU32(ImGuiCol_ResizeGripActive);
ImVec2 accum_floored = ImFloor(g.NavWindowingAccumDeltaSize);
if (accum_floored.x != 0.0f || accum_floored.y != 0.0f)
{
// FIXME-NAV: Should store and accumulate into a separate size buffer to handle sizing constraints properly, right now a constraint will make us stuck.
size_target = CalcWindowSizeAfterConstraint(window, window->SizeFull + accum_floored);
g.NavWindowingAccumDeltaSize -= accum_floored;
}
}
}
// Apply back modified position/size to window
if (size_target.x != FLT_MAX)
{
window->SizeFull = size_target;
MarkIniSettingsDirty(window);
}
if (pos_target.x != FLT_MAX)
{
window->Pos = ImFloor(pos_target);
MarkIniSettingsDirty(window);
}
window->Size = window->SizeFull;
return ret_auto_fit;
}
static inline void ClampWindowPos(ImGuiWindow* window, const ImRect& visibility_rect)
{
ImGuiContext& g = *GImGui;
ImVec2 size_for_clamping = window->Size;
if (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(window->Flags & ImGuiWindowFlags_NoTitleBar))
size_for_clamping.y = window->TitleBarHeight();
window->Pos = ImClamp(window->Pos, visibility_rect.Min - size_for_clamping, visibility_rect.Max);
}
static void ImGui::RenderWindowOuterBorders(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
float rounding = window->WindowRounding;
float border_size = window->WindowBorderSize;
if (border_size > 0.0f && !(window->Flags & ImGuiWindowFlags_NoBackground))
window->DrawList->AddRect(window->Pos, window->Pos + window->Size, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
int border_held = window->ResizeBorderHeld;
if (border_held != -1)
{
const ImGuiResizeBorderDef& def = resize_border_def[border_held];
ImRect border_r = GetResizeBorderRect(window, border_held, rounding, 0.0f);
window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN1) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle - IM_PI * 0.25f, def.OuterAngle);
window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN2) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle, def.OuterAngle + IM_PI * 0.25f);
window->DrawList->PathStroke(GetColorU32(ImGuiCol_SeparatorActive), 0, ImMax(2.0f, border_size)); // Thicker than usual
}
if (g.Style.FrameBorderSize > 0 && !(window->Flags & ImGuiWindowFlags_NoTitleBar))
{
float y = window->Pos.y + window->TitleBarHeight() - 1;
window->DrawList->AddLine(ImVec2(window->Pos.x + border_size, y), ImVec2(window->Pos.x + window->Size.x - border_size, y), GetColorU32(ImGuiCol_Border), g.Style.FrameBorderSize);
}
}
// Draw background and borders
// Draw and handle scrollbars
void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, bool handle_borders_and_resize_grips, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size)
{
ImGuiContext& g = *GImGui;
ImGuiStyle& style = g.Style;
ImGuiWindowFlags flags = window->Flags;
// Ensure that ScrollBar doesn't read last frame's SkipItems
IM_ASSERT(window->BeginCount == 0);
window->SkipItems = false;
// Draw window + handle manual resize
// As we highlight the title bar when want_focus is set, multiple reappearing windows will have their title bar highlighted on their reappearing frame.
const float window_rounding = window->WindowRounding;
const float window_border_size = window->WindowBorderSize;
if (window->Collapsed)
{
// Title bar only
const float backup_border_size = style.FrameBorderSize;
g.Style.FrameBorderSize = window->WindowBorderSize;
ImU32 title_bar_col = GetColorU32((title_bar_is_highlight && !g.NavDisableHighlight) ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBgCollapsed);
RenderFrame(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, true, window_rounding);
g.Style.FrameBorderSize = backup_border_size;
}
else
{
// Window background
if (!(flags & ImGuiWindowFlags_NoBackground))
{
ImU32 bg_col = GetColorU32(GetWindowBgColorIdx(window));
bool override_alpha = false;
float alpha = 1.0f;
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasBgAlpha)
{
alpha = g.NextWindowData.BgAlphaVal;
override_alpha = true;
}
if (override_alpha)
bg_col = (bg_col & ~IM_COL32_A_MASK) | (IM_F32_TO_INT8_SAT(alpha) << IM_COL32_A_SHIFT);
window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? 0 : ImDrawFlags_RoundCornersBottom);
}
// Title bar
if (!(flags & ImGuiWindowFlags_NoTitleBar))
{
ImU32 title_bar_col = GetColorU32(title_bar_is_highlight ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg);
window->DrawList->AddRectFilled(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, window_rounding, ImDrawFlags_RoundCornersTop);
}
// Menu bar
if (flags & ImGuiWindowFlags_MenuBar)
{
ImRect menu_bar_rect = window->MenuBarRect();
menu_bar_rect.ClipWith(window->Rect()); // Soft clipping, in particular child window don't have minimum size covering the menu bar so this is useful for them.
window->DrawList->AddRectFilled(menu_bar_rect.Min + ImVec2(window_border_size, 0), menu_bar_rect.Max - ImVec2(window_border_size, 0), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawFlags_RoundCornersTop);
if (style.FrameBorderSize > 0.0f && menu_bar_rect.Max.y < window->Pos.y + window->Size.y)
window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
}
// Scrollbars
if (window->ScrollbarX)
Scrollbar(ImGuiAxis_X);
if (window->ScrollbarY)
Scrollbar(ImGuiAxis_Y);
// Render resize grips (after their input handling so we don't have a frame of latency)
if (handle_borders_and_resize_grips && !(flags & ImGuiWindowFlags_NoResize))
{
for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
{
const ImU32 col = resize_grip_col[resize_grip_n];
if ((col & IM_COL32_A_MASK) == 0)
continue;
const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPosN);
window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, resize_grip_draw_size) : ImVec2(resize_grip_draw_size, window_border_size)));
window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(resize_grip_draw_size, window_border_size) : ImVec2(window_border_size, resize_grip_draw_size)));
window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + window_border_size), corner.y + grip.InnerDir.y * (window_rounding + window_border_size)), window_rounding, grip.AngleMin12, grip.AngleMax12);
window->DrawList->PathFillConvex(col);
}
}
// Borders
if (handle_borders_and_resize_grips)
RenderWindowOuterBorders(window);
}
}
// Render title text, collapse button, close button
void ImGui::RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open)
{
ImGuiContext& g = *GImGui;
ImGuiStyle& style = g.Style;
ImGuiWindowFlags flags = window->Flags;
const bool has_close_button = (p_open != NULL);
const bool has_collapse_button = !(flags & ImGuiWindowFlags_NoCollapse) && (style.WindowMenuButtonPosition != ImGuiDir_None);
// Close & Collapse button are on the Menu NavLayer and don't default focus (unless there's nothing else on that layer)
// FIXME-NAV: Might want (or not?) to set the equivalent of ImGuiButtonFlags_NoNavFocus so that mouse clicks on standard title bar items don't necessarily set nav/keyboard ref?
const ImGuiItemFlags item_flags_backup = g.CurrentItemFlags;
g.CurrentItemFlags |= ImGuiItemFlags_NoNavDefaultFocus;
window->DC.NavLayerCurrent = ImGuiNavLayer_Menu;
// Layout buttons
// FIXME: Would be nice to generalize the subtleties expressed here into reusable code.
float pad_l = style.FramePadding.x;
float pad_r = style.FramePadding.x;
float button_sz = g.FontSize;
ImVec2 close_button_pos;
ImVec2 collapse_button_pos;
if (has_close_button)
{
pad_r += button_sz;
close_button_pos = ImVec2(title_bar_rect.Max.x - pad_r - style.FramePadding.x, title_bar_rect.Min.y);
}
if (has_collapse_button && style.WindowMenuButtonPosition == ImGuiDir_Right)
{
pad_r += button_sz;
collapse_button_pos = ImVec2(title_bar_rect.Max.x - pad_r - style.FramePadding.x, title_bar_rect.Min.y);
}
if (has_collapse_button && style.WindowMenuButtonPosition == ImGuiDir_Left)
{
collapse_button_pos = ImVec2(title_bar_rect.Min.x + pad_l - style.FramePadding.x, title_bar_rect.Min.y);
pad_l += button_sz;
}
// Collapse button (submitting first so it gets priority when choosing a navigation init fallback)
if (has_collapse_button)
if (CollapseButton(window->GetID("#COLLAPSE"), collapse_button_pos))
window->WantCollapseToggle = true; // Defer actual collapsing to next frame as we are too far in the Begin() function
// Close button
if (has_close_button)
if (CloseButton(window->GetID("#CLOSE"), close_button_pos))
*p_open = false;
window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
g.CurrentItemFlags = item_flags_backup;
// Title bar text (with: horizontal alignment, avoiding collapse/close button, optional "unsaved document" marker)
// FIXME: Refactor text alignment facilities along with RenderText helpers, this is WAY too much messy code..
const float marker_size_x = (flags & ImGuiWindowFlags_UnsavedDocument) ? button_sz * 0.80f : 0.0f;
const ImVec2 text_size = CalcTextSize(name, NULL, true) + ImVec2(marker_size_x, 0.0f);
// As a nice touch we try to ensure that centered title text doesn't get affected by visibility of Close/Collapse button,
// while uncentered title text will still reach edges correctly.
if (pad_l > style.FramePadding.x)
pad_l += g.Style.ItemInnerSpacing.x;
if (pad_r > style.FramePadding.x)
pad_r += g.Style.ItemInnerSpacing.x;
if (style.WindowTitleAlign.x > 0.0f && style.WindowTitleAlign.x < 1.0f)
{
float centerness = ImSaturate(1.0f - ImFabs(style.WindowTitleAlign.x - 0.5f) * 2.0f); // 0.0f on either edges, 1.0f on center
float pad_extend = ImMin(ImMax(pad_l, pad_r), title_bar_rect.GetWidth() - pad_l - pad_r - text_size.x);
pad_l = ImMax(pad_l, pad_extend * centerness);
pad_r = ImMax(pad_r, pad_extend * centerness);
}
ImRect layout_r(title_bar_rect.Min.x + pad_l, title_bar_rect.Min.y, title_bar_rect.Max.x - pad_r, title_bar_rect.Max.y);
ImRect clip_r(layout_r.Min.x, layout_r.Min.y, ImMin(layout_r.Max.x + g.Style.ItemInnerSpacing.x, title_bar_rect.Max.x), layout_r.Max.y);
if (flags & ImGuiWindowFlags_UnsavedDocument)
{
ImVec2 marker_pos;
marker_pos.x = ImClamp(layout_r.Min.x + (layout_r.GetWidth() - text_size.x) * style.WindowTitleAlign.x + text_size.x, layout_r.Min.x, layout_r.Max.x);
marker_pos.y = (layout_r.Min.y + layout_r.Max.y) * 0.5f;
if (marker_pos.x > layout_r.Min.x)
{
RenderBullet(window->DrawList, marker_pos, GetColorU32(ImGuiCol_Text));
clip_r.Max.x = ImMin(clip_r.Max.x, marker_pos.x - (int)(marker_size_x * 0.5f));
}
}
//if (g.IO.KeyShift) window->DrawList->AddRect(layout_r.Min, layout_r.Max, IM_COL32(255, 128, 0, 255)); // [DEBUG]
//if (g.IO.KeyCtrl) window->DrawList->AddRect(clip_r.Min, clip_r.Max, IM_COL32(255, 128, 0, 255)); // [DEBUG]
RenderTextClipped(layout_r.Min, layout_r.Max, name, NULL, &text_size, style.WindowTitleAlign, &clip_r);
}
void ImGui::UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window)
{
window->ParentWindow = parent_window;
window->RootWindow = window->RootWindowPopupTree = window->RootWindowForTitleBarHighlight = window->RootWindowForNav = window;
if (parent_window && (flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Tooltip))
window->RootWindow = parent_window->RootWindow;
if (parent_window && (flags & ImGuiWindowFlags_Popup))
window->RootWindowPopupTree = parent_window->RootWindowPopupTree;
if (parent_window && !(flags & ImGuiWindowFlags_Modal) && (flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)))
window->RootWindowForTitleBarHighlight = parent_window->RootWindowForTitleBarHighlight;
while (window->RootWindowForNav->Flags & ImGuiWindowFlags_NavFlattened)
{
IM_ASSERT(window->RootWindowForNav->ParentWindow != NULL);
window->RootWindowForNav = window->RootWindowForNav->ParentWindow;
}
}
// When a modal popup is open, newly created windows that want focus (i.e. are not popups and do not specify ImGuiWindowFlags_NoFocusOnAppearing)
// should be positioned behind that modal window, unless the window was created inside the modal begin-stack.
// In case of multiple stacked modals newly created window honors begin stack order and does not go below its own modal parent.
// - Window // FindBlockingModal() returns Modal1
// - Window // .. returns Modal1
// - Modal1 // .. returns Modal2
// - Window // .. returns Modal2
// - Window // .. returns Modal2
// - Modal2 // .. returns Modal2
static ImGuiWindow* ImGui::FindBlockingModal(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
if (g.OpenPopupStack.Size <= 0)
return NULL;
// Find a modal that has common parent with specified window. Specified window should be positioned behind that modal.
for (int i = g.OpenPopupStack.Size - 1; i >= 0; i--)
{
ImGuiWindow* popup_window = g.OpenPopupStack.Data[i].Window;
if (popup_window == NULL || !(popup_window->Flags & ImGuiWindowFlags_Modal))
continue;
if (!popup_window->Active && !popup_window->WasActive) // Check WasActive, because this code may run before popup renders on current frame, also check Active to handle newly created windows.
continue;
if (IsWindowWithinBeginStackOf(window, popup_window)) // Window is rendered over last modal, no render order change needed.
break;
for (ImGuiWindow* parent = popup_window->ParentWindowInBeginStack->RootWindow; parent != NULL; parent = parent->ParentWindowInBeginStack->RootWindow)
if (IsWindowWithinBeginStackOf(window, parent))
return popup_window; // Place window above its begin stack parent.
}
return NULL;
}
// Push a new Dear ImGui window to add widgets to.
// - A default window called "Debug" is automatically stacked at the beginning of every frame so you can use widgets without explicitly calling a Begin/End pair.
// - Begin/End can be called multiple times during the frame with the same window name to append content.
// - The window name is used as a unique identifier to preserve window information across frames (and save rudimentary information to the .ini file).
// You can use the "##" or "###" markers to use the same label with different id, or same id with different label. See documentation at the top of this file.
// - Return false when window is collapsed, so you can early out in your code. You always need to call ImGui::End() even if false is returned.
// - Passing 'bool* p_open' displays a Close button on the upper-right corner of the window, the pointed value will be set to false when the button is pressed.
bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
IM_ASSERT(name != NULL && name[0] != '\0'); // Window name required
IM_ASSERT(g.WithinFrameScope); // Forgot to call ImGui::NewFrame()
IM_ASSERT(g.FrameCountEnded != g.FrameCount); // Called ImGui::Render() or ImGui::EndFrame() and haven't called ImGui::NewFrame() again yet
// Find or create
ImGuiWindow* window = FindWindowByName(name);
const bool window_just_created = (window == NULL);
if (window_just_created)
window = CreateNewWindow(name, flags);
// Automatically disable manual moving/resizing when NoInputs is set
if ((flags & ImGuiWindowFlags_NoInputs) == ImGuiWindowFlags_NoInputs)
flags |= ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize;
if (flags & ImGuiWindowFlags_NavFlattened)
IM_ASSERT(flags & ImGuiWindowFlags_ChildWindow);
const int current_frame = g.FrameCount;
const bool first_begin_of_the_frame = (window->LastFrameActive != current_frame);
window->IsFallbackWindow = (g.CurrentWindowStack.Size == 0 && g.WithinFrameScopeWithImplicitWindow);
// Update the Appearing flag
bool window_just_activated_by_user = (window->LastFrameActive < current_frame - 1); // Not using !WasActive because the implicit "Debug" window would always toggle off->on
if (flags & ImGuiWindowFlags_Popup)
{
ImGuiPopupData& popup_ref = g.OpenPopupStack[g.BeginPopupStack.Size];
window_just_activated_by_user |= (window->PopupId != popup_ref.PopupId); // We recycle popups so treat window as activated if popup id changed
window_just_activated_by_user |= (window != popup_ref.Window);
}
window->Appearing = window_just_activated_by_user;
if (window->Appearing)
SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, true);
// Update Flags, LastFrameActive, BeginOrderXXX fields
if (first_begin_of_the_frame)
{
UpdateWindowInFocusOrderList(window, window_just_created, flags);
window->Flags = (ImGuiWindowFlags)flags;
window->LastFrameActive = current_frame;
window->LastTimeActive = (float)g.Time;
window->BeginOrderWithinParent = 0;
window->BeginOrderWithinContext = (short)(g.WindowsActiveCount++);
}
else
{
flags = window->Flags;
}
// Parent window is latched only on the first call to Begin() of the frame, so further append-calls can be done from a different window stack
ImGuiWindow* parent_window_in_stack = g.CurrentWindowStack.empty() ? NULL : g.CurrentWindowStack.back().Window;
ImGuiWindow* parent_window = first_begin_of_the_frame ? ((flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)) ? parent_window_in_stack : NULL) : window->ParentWindow;
IM_ASSERT(parent_window != NULL || !(flags & ImGuiWindowFlags_ChildWindow));
// We allow window memory to be compacted so recreate the base stack when needed.
if (window->IDStack.Size == 0)
window->IDStack.push_back(window->ID);
// Add to stack
// We intentionally set g.CurrentWindow to NULL to prevent usage until when the viewport is set, then will call SetCurrentWindow()
g.CurrentWindow = window;
ImGuiWindowStackData window_stack_data;
window_stack_data.Window = window;
window_stack_data.ParentLastItemDataBackup = g.LastItemData;
window_stack_data.StackSizesOnBegin.SetToContextState(&g);
g.CurrentWindowStack.push_back(window_stack_data);
if (flags & ImGuiWindowFlags_ChildMenu)
g.BeginMenuCount++;
// Update ->RootWindow and others pointers (before any possible call to FocusWindow)
if (first_begin_of_the_frame)
{
UpdateWindowParentAndRootLinks(window, flags, parent_window);
window->ParentWindowInBeginStack = parent_window_in_stack;
}
// Add to focus scope stack
PushFocusScope(window->ID);
window->NavRootFocusScopeId = g.CurrentFocusScopeId;
g.CurrentWindow = NULL;
// Add to popup stack
if (flags & ImGuiWindowFlags_Popup)
{
ImGuiPopupData& popup_ref = g.OpenPopupStack[g.BeginPopupStack.Size];
popup_ref.Window = window;
popup_ref.ParentNavLayer = parent_window_in_stack->DC.NavLayerCurrent;
g.BeginPopupStack.push_back(popup_ref);
window->PopupId = popup_ref.PopupId;
}
// Process SetNextWindow***() calls
// (FIXME: Consider splitting the HasXXX flags into X/Y components
bool window_pos_set_by_api = false;
bool window_size_x_set_by_api = false, window_size_y_set_by_api = false;
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasPos)
{
window_pos_set_by_api = (window->SetWindowPosAllowFlags & g.NextWindowData.PosCond) != 0;
if (window_pos_set_by_api && ImLengthSqr(g.NextWindowData.PosPivotVal) > 0.00001f)
{
// May be processed on the next frame if this is our first frame and we are measuring size
// FIXME: Look into removing the branch so everything can go through this same code path for consistency.
window->SetWindowPosVal = g.NextWindowData.PosVal;
window->SetWindowPosPivot = g.NextWindowData.PosPivotVal;
window->SetWindowPosAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
}
else
{
SetWindowPos(window, g.NextWindowData.PosVal, g.NextWindowData.PosCond);
}
}
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize)
{
window_size_x_set_by_api = (window->SetWindowSizeAllowFlags & g.NextWindowData.SizeCond) != 0 && (g.NextWindowData.SizeVal.x > 0.0f);
window_size_y_set_by_api = (window->SetWindowSizeAllowFlags & g.NextWindowData.SizeCond) != 0 && (g.NextWindowData.SizeVal.y > 0.0f);
SetWindowSize(window, g.NextWindowData.SizeVal, g.NextWindowData.SizeCond);
}
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasScroll)
{
if (g.NextWindowData.ScrollVal.x >= 0.0f)
{
window->ScrollTarget.x = g.NextWindowData.ScrollVal.x;
window->ScrollTargetCenterRatio.x = 0.0f;
}
if (g.NextWindowData.ScrollVal.y >= 0.0f)
{
window->ScrollTarget.y = g.NextWindowData.ScrollVal.y;
window->ScrollTargetCenterRatio.y = 0.0f;
}
}
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasContentSize)
window->ContentSizeExplicit = g.NextWindowData.ContentSizeVal;
else if (first_begin_of_the_frame)
window->ContentSizeExplicit = ImVec2(0.0f, 0.0f);
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasCollapsed)
SetWindowCollapsed(window, g.NextWindowData.CollapsedVal, g.NextWindowData.CollapsedCond);
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasFocus)
FocusWindow(window);
if (window->Appearing)
SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, false);
// When reusing window again multiple times a frame, just append content (don't need to setup again)
if (first_begin_of_the_frame)
{
// Initialize
const bool window_is_child_tooltip = (flags & ImGuiWindowFlags_ChildWindow) && (flags & ImGuiWindowFlags_Tooltip); // FIXME-WIP: Undocumented behavior of Child+Tooltip for pinned tooltip (#1345)
const bool window_just_appearing_after_hidden_for_resize = (window->HiddenFramesCannotSkipItems > 0);
window->Active = true;
window->HasCloseButton = (p_open != NULL);
window->ClipRect = ImVec4(-FLT_MAX, -FLT_MAX, +FLT_MAX, +FLT_MAX);
window->IDStack.resize(1);
window->DrawList->_ResetForNewFrame();
window->DC.CurrentTableIdx = -1;
// Restore buffer capacity when woken from a compacted state, to avoid
if (window->MemoryCompacted)
GcAwakeTransientWindowBuffers(window);
// Update stored window name when it changes (which can _only_ happen with the "###" operator, so the ID would stay unchanged).
// The title bar always display the 'name' parameter, so we only update the string storage if it needs to be visible to the end-user elsewhere.
bool window_title_visible_elsewhere = false;
if (g.NavWindowingListWindow != NULL && (window->Flags & ImGuiWindowFlags_NoNavFocus) == 0) // Window titles visible when using CTRL+TAB
window_title_visible_elsewhere = true;
if (window_title_visible_elsewhere && !window_just_created && strcmp(name, window->Name) != 0)
{
size_t buf_len = (size_t)window->NameBufLen;
window->Name = ImStrdupcpy(window->Name, &buf_len, name);
window->NameBufLen = (int)buf_len;
}
// UPDATE CONTENTS SIZE, UPDATE HIDDEN STATUS
// Update contents size from last frame for auto-fitting (or use explicit size)
CalcWindowContentSizes(window, &window->ContentSize, &window->ContentSizeIdeal);
if (window->HiddenFramesCanSkipItems > 0)
window->HiddenFramesCanSkipItems--;
if (window->HiddenFramesCannotSkipItems > 0)
window->HiddenFramesCannotSkipItems--;
if (window->HiddenFramesForRenderOnly > 0)
window->HiddenFramesForRenderOnly--;
// Hide new windows for one frame until they calculate their size
if (window_just_created && (!window_size_x_set_by_api || !window_size_y_set_by_api))
window->HiddenFramesCannotSkipItems = 1;
// Hide popup/tooltip window when re-opening while we measure size (because we recycle the windows)
// We reset Size/ContentSize for reappearing popups/tooltips early in this function, so further code won't be tempted to use the old size.
if (window_just_activated_by_user && (flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) != 0)
{
window->HiddenFramesCannotSkipItems = 1;
if (flags & ImGuiWindowFlags_AlwaysAutoResize)
{
if (!window_size_x_set_by_api)
window->Size.x = window->SizeFull.x = 0.f;
if (!window_size_y_set_by_api)
window->Size.y = window->SizeFull.y = 0.f;
window->ContentSize = window->ContentSizeIdeal = ImVec2(0.f, 0.f);
}
}
// SELECT VIEWPORT
// FIXME-VIEWPORT: In the docking/viewport branch, this is the point where we select the current viewport (which may affect the style)
ImGuiViewportP* viewport = (ImGuiViewportP*)(void*)GetMainViewport();
SetWindowViewport(window, viewport);
SetCurrentWindow(window);
// LOCK BORDER SIZE AND PADDING FOR THE FRAME (so that altering them doesn't cause inconsistencies)
if (flags & ImGuiWindowFlags_ChildWindow)
window->WindowBorderSize = style.ChildBorderSize;
else
window->WindowBorderSize = ((flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupBorderSize : style.WindowBorderSize;
window->WindowPadding = style.WindowPadding;
if ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & (ImGuiWindowFlags_AlwaysUseWindowPadding | ImGuiWindowFlags_Popup)) && window->WindowBorderSize == 0.0f)
window->WindowPadding = ImVec2(0.0f, (flags & ImGuiWindowFlags_MenuBar) ? style.WindowPadding.y : 0.0f);
// Lock menu offset so size calculation can use it as menu-bar windows need a minimum size.
window->DC.MenuBarOffset.x = ImMax(ImMax(window->WindowPadding.x, style.ItemSpacing.x), g.NextWindowData.MenuBarOffsetMinVal.x);
window->DC.MenuBarOffset.y = g.NextWindowData.MenuBarOffsetMinVal.y;
bool use_current_size_for_scrollbar_x = window_just_created;
bool use_current_size_for_scrollbar_y = window_just_created;
// Collapse window by double-clicking on title bar
// At this point we don't have a clipping rectangle setup yet, so we can use the title bar area for hit detection and drawing
if (!(flags & ImGuiWindowFlags_NoTitleBar) && !(flags & ImGuiWindowFlags_NoCollapse))
{
// We don't use a regular button+id to test for double-click on title bar (mostly due to legacy reason, could be fixed), so verify that we don't have items over the title bar.
ImRect title_bar_rect = window->TitleBarRect();
if (g.HoveredWindow == window && g.HoveredId == 0 && g.HoveredIdPreviousFrame == 0 && IsMouseHoveringRect(title_bar_rect.Min, title_bar_rect.Max) && g.IO.MouseClickedCount[0] == 2)
window->WantCollapseToggle = true;
if (window->WantCollapseToggle)
{
window->Collapsed = !window->Collapsed;
if (!window->Collapsed)
use_current_size_for_scrollbar_y = true;
MarkIniSettingsDirty(window);
}
}
else
{
window->Collapsed = false;
}
window->WantCollapseToggle = false;
// SIZE
// Outer Decoration Sizes
// (we need to clear ScrollbarSize immediatly as CalcWindowAutoFitSize() needs it and can be called from other locations).
const ImVec2 scrollbar_sizes_from_last_frame = window->ScrollbarSizes;
window->DecoOuterSizeX1 = 0.0f;
window->DecoOuterSizeX2 = 0.0f;
window->DecoOuterSizeY1 = window->TitleBarHeight() + window->MenuBarHeight();
window->DecoOuterSizeY2 = 0.0f;
window->ScrollbarSizes = ImVec2(0.0f, 0.0f);
// Calculate auto-fit size, handle automatic resize
const ImVec2 size_auto_fit = CalcWindowAutoFitSize(window, window->ContentSizeIdeal);
if ((flags & ImGuiWindowFlags_AlwaysAutoResize) && !window->Collapsed)
{
// Using SetNextWindowSize() overrides ImGuiWindowFlags_AlwaysAutoResize, so it can be used on tooltips/popups, etc.
if (!window_size_x_set_by_api)
{
window->SizeFull.x = size_auto_fit.x;
use_current_size_for_scrollbar_x = true;
}
if (!window_size_y_set_by_api)
{
window->SizeFull.y = size_auto_fit.y;
use_current_size_for_scrollbar_y = true;
}
}
else if (window->AutoFitFramesX > 0 || window->AutoFitFramesY > 0)
{
// Auto-fit may only grow window during the first few frames
// We still process initial auto-fit on collapsed windows to get a window width, but otherwise don't honor ImGuiWindowFlags_AlwaysAutoResize when collapsed.
if (!window_size_x_set_by_api && window->AutoFitFramesX > 0)
{
window->SizeFull.x = window->AutoFitOnlyGrows ? ImMax(window->SizeFull.x, size_auto_fit.x) : size_auto_fit.x;
use_current_size_for_scrollbar_x = true;
}
if (!window_size_y_set_by_api && window->AutoFitFramesY > 0)
{
window->SizeFull.y = window->AutoFitOnlyGrows ? ImMax(window->SizeFull.y, size_auto_fit.y) : size_auto_fit.y;
use_current_size_for_scrollbar_y = true;
}
if (!window->Collapsed)
MarkIniSettingsDirty(window);
}
// Apply minimum/maximum window size constraints and final size
window->SizeFull = CalcWindowSizeAfterConstraint(window, window->SizeFull);
window->Size = window->Collapsed && !(flags & ImGuiWindowFlags_ChildWindow) ? window->TitleBarRect().GetSize() : window->SizeFull;
// POSITION
// Popup latch its initial position, will position itself when it appears next frame
if (window_just_activated_by_user)
{
window->AutoPosLastDirection = ImGuiDir_None;
if ((flags & ImGuiWindowFlags_Popup) != 0 && !(flags & ImGuiWindowFlags_Modal) && !window_pos_set_by_api) // FIXME: BeginPopup() could use SetNextWindowPos()
window->Pos = g.BeginPopupStack.back().OpenPopupPos;
}
// Position child window
if (flags & ImGuiWindowFlags_ChildWindow)
{
IM_ASSERT(parent_window && parent_window->Active);
window->BeginOrderWithinParent = (short)parent_window->DC.ChildWindows.Size;
parent_window->DC.ChildWindows.push_back(window);
if (!(flags & ImGuiWindowFlags_Popup) && !window_pos_set_by_api && !window_is_child_tooltip)
window->Pos = parent_window->DC.CursorPos;
}
const bool window_pos_with_pivot = (window->SetWindowPosVal.x != FLT_MAX && window->HiddenFramesCannotSkipItems == 0);
if (window_pos_with_pivot)
SetWindowPos(window, window->SetWindowPosVal - window->Size * window->SetWindowPosPivot, 0); // Position given a pivot (e.g. for centering)
else if ((flags & ImGuiWindowFlags_ChildMenu) != 0)
window->Pos = FindBestWindowPosForPopup(window);
else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_just_appearing_after_hidden_for_resize)
window->Pos = FindBestWindowPosForPopup(window);
else if ((flags & ImGuiWindowFlags_Tooltip) != 0 && !window_pos_set_by_api && !window_is_child_tooltip)
window->Pos = FindBestWindowPosForPopup(window);
// Calculate the range of allowed position for that window (to be movable and visible past safe area padding)
// When clamping to stay visible, we will enforce that window->Pos stays inside of visibility_rect.
ImRect viewport_rect(viewport->GetMainRect());
ImRect viewport_work_rect(viewport->GetWorkRect());
ImVec2 visibility_padding = ImMax(style.DisplayWindowPadding, style.DisplaySafeAreaPadding);
ImRect visibility_rect(viewport_work_rect.Min + visibility_padding, viewport_work_rect.Max - visibility_padding);
// Clamp position/size so window stays visible within its viewport or monitor
// Ignore zero-sized display explicitly to avoid losing positions if a window manager reports zero-sized window when initializing or minimizing.
if (!window_pos_set_by_api && !(flags & ImGuiWindowFlags_ChildWindow))
if (viewport_rect.GetWidth() > 0.0f && viewport_rect.GetHeight() > 0.0f)
ClampWindowPos(window, visibility_rect);
window->Pos = ImFloor(window->Pos);
// Lock window rounding for the frame (so that altering them doesn't cause inconsistencies)
// Large values tend to lead to variety of artifacts and are not recommended.
window->WindowRounding = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildRounding : ((flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupRounding : style.WindowRounding;
// For windows with title bar or menu bar, we clamp to FrameHeight(FontSize + FramePadding.y * 2.0f) to completely hide artifacts.
//if ((window->Flags & ImGuiWindowFlags_MenuBar) || !(window->Flags & ImGuiWindowFlags_NoTitleBar))
// window->WindowRounding = ImMin(window->WindowRounding, g.FontSize + style.FramePadding.y * 2.0f);
// Apply window focus (new and reactivated windows are moved to front)
bool want_focus = false;
if (window_just_activated_by_user && !(flags & ImGuiWindowFlags_NoFocusOnAppearing))
{
if (flags & ImGuiWindowFlags_Popup)
want_focus = true;
else if ((flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Tooltip)) == 0)
want_focus = true;
ImGuiWindow* modal = GetTopMostPopupModal();
if (modal != NULL && !IsWindowWithinBeginStackOf(window, modal))
{
// Avoid focusing a window that is created outside of active modal. This will prevent active modal from being closed.
// Since window is not focused it would reappear at the same display position like the last time it was visible.
// In case of completely new windows it would go to the top (over current modal), but input to such window would still be blocked by modal.
// Position window behind a modal that is not a begin-parent of this window.
want_focus = false;
if (window == window->RootWindow)
{
ImGuiWindow* blocking_modal = FindBlockingModal(window);
IM_ASSERT(blocking_modal != NULL);
BringWindowToDisplayBehind(window, blocking_modal);
}
}
}
// [Test Engine] Register whole window in the item system (before submitting further decorations)
#ifdef IMGUI_ENABLE_TEST_ENGINE
if (g.TestEngineHookItems)
{
IM_ASSERT(window->IDStack.Size == 1);
window->IDStack.Size = 0; // As window->IDStack[0] == window->ID here, make sure TestEngine doesn't erroneously see window as parent of itself.
IMGUI_TEST_ENGINE_ITEM_ADD(window->ID, window->Rect(), NULL);
IMGUI_TEST_ENGINE_ITEM_INFO(window->ID, window->Name, (g.HoveredWindow == window) ? ImGuiItemStatusFlags_HoveredRect : 0);
window->IDStack.Size = 1;
}
#endif
// Handle manual resize: Resize Grips, Borders, Gamepad
int border_held = -1;
ImU32 resize_grip_col[4] = {};
const int resize_grip_count = g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // Allow resize from lower-left if we have the mouse cursor feedback for it.
const float resize_grip_draw_size = IM_FLOOR(ImMax(g.FontSize * 1.10f, window->WindowRounding + 1.0f + g.FontSize * 0.2f));
if (!window->Collapsed)
if (UpdateWindowManualResize(window, size_auto_fit, &border_held, resize_grip_count, &resize_grip_col[0], visibility_rect))
use_current_size_for_scrollbar_x = use_current_size_for_scrollbar_y = true;
window->ResizeBorderHeld = (signed char)border_held;
// SCROLLBAR VISIBILITY
// Update scrollbar visibility (based on the Size that was effective during last frame or the auto-resized Size).
if (!window->Collapsed)
{
// When reading the current size we need to read it after size constraints have been applied.
// Intentionally use previous frame values for InnerRect and ScrollbarSizes.
// And when we use window->DecorationUp here it doesn't have ScrollbarSizes.y applied yet.
ImVec2 avail_size_from_current_frame = ImVec2(window->SizeFull.x, window->SizeFull.y - (window->DecoOuterSizeY1 + window->DecoOuterSizeY2));
ImVec2 avail_size_from_last_frame = window->InnerRect.GetSize() + scrollbar_sizes_from_last_frame;
ImVec2 needed_size_from_last_frame = window_just_created ? ImVec2(0, 0) : window->ContentSize + window->WindowPadding * 2.0f;
float size_x_for_scrollbars = use_current_size_for_scrollbar_x ? avail_size_from_current_frame.x : avail_size_from_last_frame.x;
float size_y_for_scrollbars = use_current_size_for_scrollbar_y ? avail_size_from_current_frame.y : avail_size_from_last_frame.y;
//bool scrollbar_y_from_last_frame = window->ScrollbarY; // FIXME: May want to use that in the ScrollbarX expression? How many pros vs cons?
window->ScrollbarY = (flags & ImGuiWindowFlags_AlwaysVerticalScrollbar) || ((needed_size_from_last_frame.y > size_y_for_scrollbars) && !(flags & ImGuiWindowFlags_NoScrollbar));
window->ScrollbarX = (flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar) || ((needed_size_from_last_frame.x > size_x_for_scrollbars - (window->ScrollbarY ? style.ScrollbarSize : 0.0f)) && !(flags & ImGuiWindowFlags_NoScrollbar) && (flags & ImGuiWindowFlags_HorizontalScrollbar));
if (window->ScrollbarX && !window->ScrollbarY)
window->ScrollbarY = (needed_size_from_last_frame.y > size_y_for_scrollbars) && !(flags & ImGuiWindowFlags_NoScrollbar);
window->ScrollbarSizes = ImVec2(window->ScrollbarY ? style.ScrollbarSize : 0.0f, window->ScrollbarX ? style.ScrollbarSize : 0.0f);
// Amend the partially filled window->DecorationXXX values.
window->DecoOuterSizeX2 += window->ScrollbarSizes.x;
window->DecoOuterSizeY2 += window->ScrollbarSizes.y;
}
// UPDATE RECTANGLES (1- THOSE NOT AFFECTED BY SCROLLING)
// Update various regions. Variables they depend on should be set above in this function.
// We set this up after processing the resize grip so that our rectangles doesn't lag by a frame.
// Outer rectangle
// Not affected by window border size. Used by:
// - FindHoveredWindow() (w/ extra padding when border resize is enabled)
// - Begin() initial clipping rect for drawing window background and borders.
// - Begin() clipping whole child
const ImRect host_rect = ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Popup) && !window_is_child_tooltip) ? parent_window->ClipRect : viewport_rect;
const ImRect outer_rect = window->Rect();
const ImRect title_bar_rect = window->TitleBarRect();
window->OuterRectClipped = outer_rect;
window->OuterRectClipped.ClipWith(host_rect);
// Inner rectangle
// Not affected by window border size. Used by:
// - InnerClipRect
// - ScrollToRectEx()
// - NavUpdatePageUpPageDown()
// - Scrollbar()
window->InnerRect.Min.x = window->Pos.x + window->DecoOuterSizeX1;
window->InnerRect.Min.y = window->Pos.y + window->DecoOuterSizeY1;
window->InnerRect.Max.x = window->Pos.x + window->Size.x - window->DecoOuterSizeX2;
window->InnerRect.Max.y = window->Pos.y + window->Size.y - window->DecoOuterSizeY2;
// Inner clipping rectangle.
// Will extend a little bit outside the normal work region.
// This is to allow e.g. Selectable or CollapsingHeader or some separators to cover that space.
// Force round operator last to ensure that e.g. (int)(max.x-min.x) in user's render code produce correct result.
// Note that if our window is collapsed we will end up with an inverted (~null) clipping rectangle which is the correct behavior.
// Affected by window/frame border size. Used by:
// - Begin() initial clip rect
float top_border_size = (((flags & ImGuiWindowFlags_MenuBar) || !(flags & ImGuiWindowFlags_NoTitleBar)) ? style.FrameBorderSize : window->WindowBorderSize);
window->InnerClipRect.Min.x = ImFloor(0.5f + window->InnerRect.Min.x + ImMax(ImFloor(window->WindowPadding.x * 0.5f), window->WindowBorderSize));
window->InnerClipRect.Min.y = ImFloor(0.5f + window->InnerRect.Min.y + top_border_size);
window->InnerClipRect.Max.x = ImFloor(0.5f + window->InnerRect.Max.x - ImMax(ImFloor(window->WindowPadding.x * 0.5f), window->WindowBorderSize));
window->InnerClipRect.Max.y = ImFloor(0.5f + window->InnerRect.Max.y - window->WindowBorderSize);
window->InnerClipRect.ClipWithFull(host_rect);
// Default item width. Make it proportional to window size if window manually resizes
if (window->Size.x > 0.0f && !(flags & ImGuiWindowFlags_Tooltip) && !(flags & ImGuiWindowFlags_AlwaysAutoResize))
window->ItemWidthDefault = ImFloor(window->Size.x * 0.65f);
else
window->ItemWidthDefault = ImFloor(g.FontSize * 16.0f);
// SCROLLING
// Lock down maximum scrolling
// The value of ScrollMax are ahead from ScrollbarX/ScrollbarY which is intentionally using InnerRect from previous rect in order to accommodate
// for right/bottom aligned items without creating a scrollbar.
window->ScrollMax.x = ImMax(0.0f, window->ContentSize.x + window->WindowPadding.x * 2.0f - window->InnerRect.GetWidth());
window->ScrollMax.y = ImMax(0.0f, window->ContentSize.y + window->WindowPadding.y * 2.0f - window->InnerRect.GetHeight());
// Apply scrolling
window->Scroll = CalcNextScrollFromScrollTargetAndClamp(window);
window->ScrollTarget = ImVec2(FLT_MAX, FLT_MAX);
window->DecoInnerSizeX1 = window->DecoInnerSizeY1 = 0.0f;
// DRAWING
// Setup draw list and outer clipping rectangle
IM_ASSERT(window->DrawList->CmdBuffer.Size == 1 && window->DrawList->CmdBuffer[0].ElemCount == 0);
window->DrawList->PushTextureID(g.Font->ContainerAtlas->TexID);
PushClipRect(host_rect.Min, host_rect.Max, false);
// Child windows can render their decoration (bg color, border, scrollbars, etc.) within their parent to save a draw call (since 1.71)
// When using overlapping child windows, this will break the assumption that child z-order is mapped to submission order.
// FIXME: User code may rely on explicit sorting of overlapping child window and would need to disable this somehow. Please get in contact if you are affected (github #4493)
{
bool render_decorations_in_parent = false;
if ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Popup) && !window_is_child_tooltip)
{
// - We test overlap with the previous child window only (testing all would end up being O(log N) not a good investment here)
// - We disable this when the parent window has zero vertices, which is a common pattern leading to laying out multiple overlapping childs
ImGuiWindow* previous_child = parent_window->DC.ChildWindows.Size >= 2 ? parent_window->DC.ChildWindows[parent_window->DC.ChildWindows.Size - 2] : NULL;
bool previous_child_overlapping = previous_child ? previous_child->Rect().Overlaps(window->Rect()) : false;
bool parent_is_empty = parent_window->DrawList->VtxBuffer.Size > 0;
if (window->DrawList->CmdBuffer.back().ElemCount == 0 && parent_is_empty && !previous_child_overlapping)
render_decorations_in_parent = true;
}
if (render_decorations_in_parent)
window->DrawList = parent_window->DrawList;
// Handle title bar, scrollbar, resize grips and resize borders
const ImGuiWindow* window_to_highlight = g.NavWindowingTarget ? g.NavWindowingTarget : g.NavWindow;
const bool title_bar_is_highlight = want_focus || (window_to_highlight && window->RootWindowForTitleBarHighlight == window_to_highlight->RootWindowForTitleBarHighlight);
const bool handle_borders_and_resize_grips = true; // This exists to facilitate merge with 'docking' branch.
RenderWindowDecorations(window, title_bar_rect, title_bar_is_highlight, handle_borders_and_resize_grips, resize_grip_count, resize_grip_col, resize_grip_draw_size);
if (render_decorations_in_parent)
window->DrawList = &window->DrawListInst;
}
// UPDATE RECTANGLES (2- THOSE AFFECTED BY SCROLLING)
// Work rectangle.
// Affected by window padding and border size. Used by:
// - Columns() for right-most edge
// - TreeNode(), CollapsingHeader() for right-most edge
// - BeginTabBar() for right-most edge
const bool allow_scrollbar_x = !(flags & ImGuiWindowFlags_NoScrollbar) && (flags & ImGuiWindowFlags_HorizontalScrollbar);
const bool allow_scrollbar_y = !(flags & ImGuiWindowFlags_NoScrollbar);
const float work_rect_size_x = (window->ContentSizeExplicit.x != 0.0f ? window->ContentSizeExplicit.x : ImMax(allow_scrollbar_x ? window->ContentSize.x : 0.0f, window->Size.x - window->WindowPadding.x * 2.0f - (window->DecoOuterSizeX1 + window->DecoOuterSizeX2)));
const float work_rect_size_y = (window->ContentSizeExplicit.y != 0.0f ? window->ContentSizeExplicit.y : ImMax(allow_scrollbar_y ? window->ContentSize.y : 0.0f, window->Size.y - window->WindowPadding.y * 2.0f - (window->DecoOuterSizeY1 + window->DecoOuterSizeY2)));
window->WorkRect.Min.x = ImFloor(window->InnerRect.Min.x - window->Scroll.x + ImMax(window->WindowPadding.x, window->WindowBorderSize));
window->WorkRect.Min.y = ImFloor(window->InnerRect.Min.y - window->Scroll.y + ImMax(window->WindowPadding.y, window->WindowBorderSize));
window->WorkRect.Max.x = window->WorkRect.Min.x + work_rect_size_x;
window->WorkRect.Max.y = window->WorkRect.Min.y + work_rect_size_y;
window->ParentWorkRect = window->WorkRect;
// [LEGACY] Content Region
// FIXME-OBSOLETE: window->ContentRegionRect.Max is currently very misleading / partly faulty, but some BeginChild() patterns relies on it.
// Used by:
// - Mouse wheel scrolling + many other things
window->ContentRegionRect.Min.x = window->Pos.x - window->Scroll.x + window->WindowPadding.x + window->DecoOuterSizeX1;
window->ContentRegionRect.Min.y = window->Pos.y - window->Scroll.y + window->WindowPadding.y + window->DecoOuterSizeY1;
window->ContentRegionRect.Max.x = window->ContentRegionRect.Min.x + (window->ContentSizeExplicit.x != 0.0f ? window->ContentSizeExplicit.x : (window->Size.x - window->WindowPadding.x * 2.0f - (window->DecoOuterSizeX1 + window->DecoOuterSizeX2)));
window->ContentRegionRect.Max.y = window->ContentRegionRect.Min.y + (window->ContentSizeExplicit.y != 0.0f ? window->ContentSizeExplicit.y : (window->Size.y - window->WindowPadding.y * 2.0f - (window->DecoOuterSizeY1 + window->DecoOuterSizeY2)));
// Setup drawing context
// (NB: That term "drawing context / DC" lost its meaning a long time ago. Initially was meant to hold transient data only. Nowadays difference between window-> and window->DC-> is dubious.)
window->DC.Indent.x = window->DecoOuterSizeX1 + window->WindowPadding.x - window->Scroll.x;
window->DC.GroupOffset.x = 0.0f;
window->DC.ColumnsOffset.x = 0.0f;
// Record the loss of precision of CursorStartPos which can happen due to really large scrolling amount.
// This is used by clipper to compensate and fix the most common use case of large scroll area. Easy and cheap, next best thing compared to switching everything to double or ImU64.
double start_pos_highp_x = (double)window->Pos.x + window->WindowPadding.x - (double)window->Scroll.x + window->DecoOuterSizeX1 + window->DC.ColumnsOffset.x;
double start_pos_highp_y = (double)window->Pos.y + window->WindowPadding.y - (double)window->Scroll.y + window->DecoOuterSizeY1;
window->DC.CursorStartPos = ImVec2((float)start_pos_highp_x, (float)start_pos_highp_y);
window->DC.CursorStartPosLossyness = ImVec2((float)(start_pos_highp_x - window->DC.CursorStartPos.x), (float)(start_pos_highp_y - window->DC.CursorStartPos.y));
window->DC.CursorPos = window->DC.CursorStartPos;
window->DC.CursorPosPrevLine = window->DC.CursorPos;
window->DC.CursorMaxPos = window->DC.CursorStartPos;
window->DC.IdealMaxPos = window->DC.CursorStartPos;
window->DC.CurrLineSize = window->DC.PrevLineSize = ImVec2(0.0f, 0.0f);
window->DC.CurrLineTextBaseOffset = window->DC.PrevLineTextBaseOffset = 0.0f;
window->DC.IsSameLine = window->DC.IsSetPos = false;
window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
window->DC.NavLayersActiveMask = window->DC.NavLayersActiveMaskNext;
window->DC.NavLayersActiveMaskNext = 0x00;
window->DC.NavHideHighlightOneFrame = false;
window->DC.NavHasScroll = (window->ScrollMax.y > 0.0f);
window->DC.MenuBarAppending = false;
window->DC.MenuColumns.Update(style.ItemSpacing.x, window_just_activated_by_user);
window->DC.TreeDepth = 0;
window->DC.TreeJumpToParentOnPopMask = 0x00;
window->DC.ChildWindows.resize(0);
window->DC.StateStorage = &window->StateStorage;
window->DC.CurrentColumns = NULL;
window->DC.LayoutType = ImGuiLayoutType_Vertical;
window->DC.ParentLayoutType = parent_window ? parent_window->DC.LayoutType : ImGuiLayoutType_Vertical;
window->DC.ItemWidth = window->ItemWidthDefault;
window->DC.TextWrapPos = -1.0f; // disabled
window->DC.ItemWidthStack.resize(0);
window->DC.TextWrapPosStack.resize(0);
if (window->AutoFitFramesX > 0)
window->AutoFitFramesX--;
if (window->AutoFitFramesY > 0)
window->AutoFitFramesY--;
// Apply focus (we need to call FocusWindow() AFTER setting DC.CursorStartPos so our initial navigation reference rectangle can start around there)
if (want_focus)
{
FocusWindow(window);
NavInitWindow(window, false); // <-- this is in the way for us to be able to defer and sort reappearing FocusWindow() calls
}
// Title bar
if (!(flags & ImGuiWindowFlags_NoTitleBar))
RenderWindowTitleBarContents(window, ImRect(title_bar_rect.Min.x + window->WindowBorderSize, title_bar_rect.Min.y, title_bar_rect.Max.x - window->WindowBorderSize, title_bar_rect.Max.y), name, p_open);
// Clear hit test shape every frame
window->HitTestHoleSize.x = window->HitTestHoleSize.y = 0;
// Pressing CTRL+C while holding on a window copy its content to the clipboard
// This works but 1. doesn't handle multiple Begin/End pairs, 2. recursing into another Begin/End pair - so we need to work that out and add better logging scope.
// Maybe we can support CTRL+C on every element?
/*
//if (g.NavWindow == window && g.ActiveId == 0)
if (g.ActiveId == window->MoveId)
if (g.IO.KeyCtrl && IsKeyPressed(ImGuiKey_C))
LogToClipboard();
*/
// We fill last item data based on Title Bar/Tab, in order for IsItemHovered() and IsItemActive() to be usable after Begin().
// This is useful to allow creating context menus on title bar only, etc.
SetLastItemData(window->MoveId, g.CurrentItemFlags, IsMouseHoveringRect(title_bar_rect.Min, title_bar_rect.Max, false) ? ImGuiItemStatusFlags_HoveredRect : 0, title_bar_rect);
// [DEBUG]
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
if (g.DebugLocateId != 0 && (window->ID == g.DebugLocateId || window->MoveId == g.DebugLocateId))
DebugLocateItemResolveWithLastItem();
#endif
// [Test Engine] Register title bar / tab with MoveId.
#ifdef IMGUI_ENABLE_TEST_ENGINE
if (!(window->Flags & ImGuiWindowFlags_NoTitleBar))
IMGUI_TEST_ENGINE_ITEM_ADD(g.LastItemData.ID, g.LastItemData.Rect, &g.LastItemData);
#endif
}
else
{
// Append
SetCurrentWindow(window);
}
PushClipRect(window->InnerClipRect.Min, window->InnerClipRect.Max, true);
// Clear 'accessed' flag last thing (After PushClipRect which will set the flag. We want the flag to stay false when the default "Debug" window is unused)
window->WriteAccessed = false;
window->BeginCount++;
g.NextWindowData.ClearFlags();
// Update visibility
if (first_begin_of_the_frame)
{
if (flags & ImGuiWindowFlags_ChildWindow)
{
// Child window can be out of sight and have "negative" clip windows.
// Mark them as collapsed so commands are skipped earlier (we can't manually collapse them because they have no title bar).
IM_ASSERT((flags & ImGuiWindowFlags_NoTitleBar) != 0);
if (!(flags & ImGuiWindowFlags_AlwaysAutoResize) && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0) // FIXME: Doesn't make sense for ChildWindow??
{
const bool nav_request = (flags & ImGuiWindowFlags_NavFlattened) && (g.NavAnyRequest && g.NavWindow && g.NavWindow->RootWindowForNav == window->RootWindowForNav);
if (!g.LogEnabled && !nav_request)
if (window->OuterRectClipped.Min.x >= window->OuterRectClipped.Max.x || window->OuterRectClipped.Min.y >= window->OuterRectClipped.Max.y)
window->HiddenFramesCanSkipItems = 1;
}
// Hide along with parent or if parent is collapsed
if (parent_window && (parent_window->Collapsed || parent_window->HiddenFramesCanSkipItems > 0))
window->HiddenFramesCanSkipItems = 1;
if (parent_window && (parent_window->Collapsed || parent_window->HiddenFramesCannotSkipItems > 0))
window->HiddenFramesCannotSkipItems = 1;
}
// Don't render if style alpha is 0.0 at the time of Begin(). This is arbitrary and inconsistent but has been there for a long while (may remove at some point)
if (style.Alpha <= 0.0f)
window->HiddenFramesCanSkipItems = 1;
// Update the Hidden flag
bool hidden_regular = (window->HiddenFramesCanSkipItems > 0) || (window->HiddenFramesCannotSkipItems > 0);
window->Hidden = hidden_regular || (window->HiddenFramesForRenderOnly > 0);
// Disable inputs for requested number of frames
if (window->DisableInputsFrames > 0)
{
window->DisableInputsFrames--;
window->Flags |= ImGuiWindowFlags_NoInputs;
}
// Update the SkipItems flag, used to early out of all items functions (no layout required)
bool skip_items = false;
if (window->Collapsed || !window->Active || hidden_regular)
if (window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && window->HiddenFramesCannotSkipItems <= 0)
skip_items = true;
window->SkipItems = skip_items;
}
// [DEBUG] io.ConfigDebugBeginReturnValue override return value to test Begin/End and BeginChild/EndChild behaviors.
// (The implicit fallback window is NOT automatically ended allowing it to always be able to receive commands without crashing)
if (!window->IsFallbackWindow && ((g.IO.ConfigDebugBeginReturnValueOnce && window_just_created) || (g.IO.ConfigDebugBeginReturnValueLoop && g.DebugBeginReturnValueCullDepth == g.CurrentWindowStack.Size)))
{
if (window->AutoFitFramesX > 0) { window->AutoFitFramesX++; }
if (window->AutoFitFramesY > 0) { window->AutoFitFramesY++; }
return false;
}
return !window->SkipItems;
}
void ImGui::End()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// Error checking: verify that user hasn't called End() too many times!
if (g.CurrentWindowStack.Size <= 1 && g.WithinFrameScopeWithImplicitWindow)
{
IM_ASSERT_USER_ERROR(g.CurrentWindowStack.Size > 1, "Calling End() too many times!");
return;
}
IM_ASSERT(g.CurrentWindowStack.Size > 0);
// Error checking: verify that user doesn't directly call End() on a child window.
if (window->Flags & ImGuiWindowFlags_ChildWindow)
IM_ASSERT_USER_ERROR(g.WithinEndChild, "Must call EndChild() and not End()!");
// Close anything that is open
if (window->DC.CurrentColumns)
EndColumns();
PopClipRect(); // Inner window clip rectangle
PopFocusScope();
// Stop logging
if (!(window->Flags & ImGuiWindowFlags_ChildWindow)) // FIXME: add more options for scope of logging
LogFinish();
if (window->DC.IsSetPos)
ErrorCheckUsingSetCursorPosToExtendParentBoundaries();
// Pop from window stack
g.LastItemData = g.CurrentWindowStack.back().ParentLastItemDataBackup;
if (window->Flags & ImGuiWindowFlags_ChildMenu)
g.BeginMenuCount--;
if (window->Flags & ImGuiWindowFlags_Popup)
g.BeginPopupStack.pop_back();
g.CurrentWindowStack.back().StackSizesOnBegin.CompareWithContextState(&g);
g.CurrentWindowStack.pop_back();
SetCurrentWindow(g.CurrentWindowStack.Size == 0 ? NULL : g.CurrentWindowStack.back().Window);
}
void ImGui::BringWindowToFocusFront(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(window == window->RootWindow);
const int cur_order = window->FocusOrder;
IM_ASSERT(g.WindowsFocusOrder[cur_order] == window);
if (g.WindowsFocusOrder.back() == window)
return;
const int new_order = g.WindowsFocusOrder.Size - 1;
for (int n = cur_order; n < new_order; n++)
{
g.WindowsFocusOrder[n] = g.WindowsFocusOrder[n + 1];
g.WindowsFocusOrder[n]->FocusOrder--;
IM_ASSERT(g.WindowsFocusOrder[n]->FocusOrder == n);
}
g.WindowsFocusOrder[new_order] = window;
window->FocusOrder = (short)new_order;
}
void ImGui::BringWindowToDisplayFront(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* current_front_window = g.Windows.back();
if (current_front_window == window || current_front_window->RootWindow == window) // Cheap early out (could be better)
return;
for (int i = g.Windows.Size - 2; i >= 0; i--) // We can ignore the top-most window
if (g.Windows[i] == window)
{
memmove(&g.Windows[i], &g.Windows[i + 1], (size_t)(g.Windows.Size - i - 1) * sizeof(ImGuiWindow*));
g.Windows[g.Windows.Size - 1] = window;
break;
}
}
void ImGui::BringWindowToDisplayBack(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
if (g.Windows[0] == window)
return;
for (int i = 0; i < g.Windows.Size; i++)
if (g.Windows[i] == window)
{
memmove(&g.Windows[1], &g.Windows[0], (size_t)i * sizeof(ImGuiWindow*));
g.Windows[0] = window;
break;
}
}
void ImGui::BringWindowToDisplayBehind(ImGuiWindow* window, ImGuiWindow* behind_window)
{
IM_ASSERT(window != NULL && behind_window != NULL);
ImGuiContext& g = *GImGui;
window = window->RootWindow;
behind_window = behind_window->RootWindow;
int pos_wnd = FindWindowDisplayIndex(window);
int pos_beh = FindWindowDisplayIndex(behind_window);
if (pos_wnd < pos_beh)
{
size_t copy_bytes = (pos_beh - pos_wnd - 1) * sizeof(ImGuiWindow*);
memmove(&g.Windows.Data[pos_wnd], &g.Windows.Data[pos_wnd + 1], copy_bytes);
g.Windows[pos_beh - 1] = window;
}
else
{
size_t copy_bytes = (pos_wnd - pos_beh) * sizeof(ImGuiWindow*);
memmove(&g.Windows.Data[pos_beh + 1], &g.Windows.Data[pos_beh], copy_bytes);
g.Windows[pos_beh] = window;
}
}
int ImGui::FindWindowDisplayIndex(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
return g.Windows.index_from_ptr(g.Windows.find(window));
}
// Moving window to front of display and set focus (which happens to be back of our sorted list)
void ImGui::FocusWindow(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
if (g.NavWindow != window)
{
SetNavWindow(window);
if (window && g.NavDisableMouseHover)
g.NavMousePosDirty = true;
g.NavId = window ? window->NavLastIds[0] : 0; // Restore NavId
g.NavLayer = ImGuiNavLayer_Main;
g.NavFocusScopeId = window ? window->NavRootFocusScopeId : 0;
g.NavIdIsAlive = false;
// Close popups if any
ClosePopupsOverWindow(window, false);
}
// Move the root window to the top of the pile
IM_ASSERT(window == NULL || window->RootWindow != NULL);
ImGuiWindow* focus_front_window = window ? window->RootWindow : NULL; // NB: In docking branch this is window->RootWindowDockStop
ImGuiWindow* display_front_window = window ? window->RootWindow : NULL;
// Steal active widgets. Some of the cases it triggers includes:
// - Focus a window while an InputText in another window is active, if focus happens before the old InputText can run.
// - When using Nav to activate menu items (due to timing of activating on press->new window appears->losing ActiveId)
if (g.ActiveId != 0 && g.ActiveIdWindow && g.ActiveIdWindow->RootWindow != focus_front_window)
if (!g.ActiveIdNoClearOnFocusLoss)
ClearActiveID();
// Passing NULL allow to disable keyboard focus
if (!window)
return;
// Bring to front
BringWindowToFocusFront(focus_front_window);
if (((window->Flags | display_front_window->Flags) & ImGuiWindowFlags_NoBringToFrontOnFocus) == 0)
BringWindowToDisplayFront(display_front_window);
}
void ImGui::FocusTopMostWindowUnderOne(ImGuiWindow* under_this_window, ImGuiWindow* ignore_window)
{
ImGuiContext& g = *GImGui;
int start_idx = g.WindowsFocusOrder.Size - 1;
if (under_this_window != NULL)
{
// Aim at root window behind us, if we are in a child window that's our own root (see #4640)
int offset = -1;
while (under_this_window->Flags & ImGuiWindowFlags_ChildWindow)
{
under_this_window = under_this_window->ParentWindow;
offset = 0;
}
start_idx = FindWindowFocusIndex(under_this_window) + offset;
}
for (int i = start_idx; i >= 0; i--)
{
// We may later decide to test for different NoXXXInputs based on the active navigation input (mouse vs nav) but that may feel more confusing to the user.
ImGuiWindow* window = g.WindowsFocusOrder[i];
IM_ASSERT(window == window->RootWindow);
if (window != ignore_window && window->WasActive)
if ((window->Flags & (ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs)) != (ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs))
{
ImGuiWindow* focus_window = NavRestoreLastChildNavWindow(window);
FocusWindow(focus_window);
return;
}
}
FocusWindow(NULL);
}
// Important: this alone doesn't alter current ImDrawList state. This is called by PushFont/PopFont only.
void ImGui::SetCurrentFont(ImFont* font)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(font && font->IsLoaded()); // Font Atlas not created. Did you call io.Fonts->GetTexDataAsRGBA32 / GetTexDataAsAlpha8 ?
IM_ASSERT(font->Scale > 0.0f);
g.Font = font;
g.FontBaseSize = ImMax(1.0f, g.IO.FontGlobalScale * g.Font->FontSize * g.Font->Scale);
g.FontSize = g.CurrentWindow ? g.CurrentWindow->CalcFontSize() : 0.0f;
ImFontAtlas* atlas = g.Font->ContainerAtlas;
g.DrawListSharedData.TexUvWhitePixel = atlas->TexUvWhitePixel;
g.DrawListSharedData.TexUvLines = atlas->TexUvLines;
g.DrawListSharedData.Font = g.Font;
g.DrawListSharedData.FontSize = g.FontSize;
}
void ImGui::PushFont(ImFont* font)
{
ImGuiContext& g = *GImGui;
if (!font)
font = GetDefaultFont();
SetCurrentFont(font);
g.FontStack.push_back(font);
g.CurrentWindow->DrawList->PushTextureID(font->ContainerAtlas->TexID);
}
void ImGui::PopFont()
{
ImGuiContext& g = *GImGui;
g.CurrentWindow->DrawList->PopTextureID();
g.FontStack.pop_back();
SetCurrentFont(g.FontStack.empty() ? GetDefaultFont() : g.FontStack.back());
}
void ImGui::PushItemFlag(ImGuiItemFlags option, bool enabled)
{
ImGuiContext& g = *GImGui;
ImGuiItemFlags item_flags = g.CurrentItemFlags;
IM_ASSERT(item_flags == g.ItemFlagsStack.back());
if (enabled)
item_flags |= option;
else
item_flags &= ~option;
g.CurrentItemFlags = item_flags;
g.ItemFlagsStack.push_back(item_flags);
}
void ImGui::PopItemFlag()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.ItemFlagsStack.Size > 1); // Too many calls to PopItemFlag() - we always leave a 0 at the bottom of the stack.
g.ItemFlagsStack.pop_back();
g.CurrentItemFlags = g.ItemFlagsStack.back();
}
// BeginDisabled()/EndDisabled()
// - Those can be nested but it cannot be used to enable an already disabled section (a single BeginDisabled(true) in the stack is enough to keep everything disabled)
// - Visually this is currently altering alpha, but it is expected that in a future styling system this would work differently.
// - Feedback welcome at https://github.com/ocornut/imgui/issues/211
// - BeginDisabled(false) essentially does nothing useful but is provided to facilitate use of boolean expressions. If you can avoid calling BeginDisabled(False)/EndDisabled() best to avoid it.
// - Optimized shortcuts instead of PushStyleVar() + PushItemFlag()
void ImGui::BeginDisabled(bool disabled)
{
ImGuiContext& g = *GImGui;
bool was_disabled = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
if (!was_disabled && disabled)
{
g.DisabledAlphaBackup = g.Style.Alpha;
g.Style.Alpha *= g.Style.DisabledAlpha; // PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * g.Style.DisabledAlpha);
}
if (was_disabled || disabled)
g.CurrentItemFlags |= ImGuiItemFlags_Disabled;
g.ItemFlagsStack.push_back(g.CurrentItemFlags);
g.DisabledStackSize++;
}
void ImGui::EndDisabled()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.DisabledStackSize > 0);
g.DisabledStackSize--;
bool was_disabled = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
//PopItemFlag();
g.ItemFlagsStack.pop_back();
g.CurrentItemFlags = g.ItemFlagsStack.back();
if (was_disabled && (g.CurrentItemFlags & ImGuiItemFlags_Disabled) == 0)
g.Style.Alpha = g.DisabledAlphaBackup; //PopStyleVar();
}
void ImGui::PushTabStop(bool tab_stop)
{
PushItemFlag(ImGuiItemFlags_NoTabStop, !tab_stop);
}
void ImGui::PopTabStop()
{
PopItemFlag();
}
void ImGui::PushButtonRepeat(bool repeat)
{
PushItemFlag(ImGuiItemFlags_ButtonRepeat, repeat);
}
void ImGui::PopButtonRepeat()
{
PopItemFlag();
}
void ImGui::PushTextWrapPos(float wrap_pos_x)
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.TextWrapPosStack.push_back(window->DC.TextWrapPos);
window->DC.TextWrapPos = wrap_pos_x;
}
void ImGui::PopTextWrapPos()
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.TextWrapPos = window->DC.TextWrapPosStack.back();
window->DC.TextWrapPosStack.pop_back();
}
static ImGuiWindow* GetCombinedRootWindow(ImGuiWindow* window, bool popup_hierarchy)
{
ImGuiWindow* last_window = NULL;
while (last_window != window)
{
last_window = window;
window = window->RootWindow;
if (popup_hierarchy)
window = window->RootWindowPopupTree;
}
return window;
}
bool ImGui::IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent, bool popup_hierarchy)
{
ImGuiWindow* window_root = GetCombinedRootWindow(window, popup_hierarchy);
if (window_root == potential_parent)
return true;
while (window != NULL)
{
if (window == potential_parent)
return true;
if (window == window_root) // end of chain
return false;
window = window->ParentWindow;
}
return false;
}
bool ImGui::IsWindowWithinBeginStackOf(ImGuiWindow* window, ImGuiWindow* potential_parent)
{
if (window->RootWindow == potential_parent)
return true;
while (window != NULL)
{
if (window == potential_parent)
return true;
window = window->ParentWindowInBeginStack;
}
return false;
}
bool ImGui::IsWindowAbove(ImGuiWindow* potential_above, ImGuiWindow* potential_below)
{
ImGuiContext& g = *GImGui;
// It would be saner to ensure that display layer is always reflected in the g.Windows[] order, which would likely requires altering all manipulations of that array
const int display_layer_delta = GetWindowDisplayLayer(potential_above) - GetWindowDisplayLayer(potential_below);
if (display_layer_delta != 0)
return display_layer_delta > 0;
for (int i = g.Windows.Size - 1; i >= 0; i--)
{
ImGuiWindow* candidate_window = g.Windows[i];
if (candidate_window == potential_above)
return true;
if (candidate_window == potential_below)
return false;
}
return false;
}
bool ImGui::IsWindowHovered(ImGuiHoveredFlags flags)
{
IM_ASSERT((flags & (ImGuiHoveredFlags_AllowWhenOverlapped | ImGuiHoveredFlags_AllowWhenDisabled)) == 0); // Flags not supported by this function
ImGuiContext& g = *GImGui;
ImGuiWindow* ref_window = g.HoveredWindow;
ImGuiWindow* cur_window = g.CurrentWindow;
if (ref_window == NULL)
return false;
if ((flags & ImGuiHoveredFlags_AnyWindow) == 0)
{
IM_ASSERT(cur_window); // Not inside a Begin()/End()
const bool popup_hierarchy = (flags & ImGuiHoveredFlags_NoPopupHierarchy) == 0;
if (flags & ImGuiHoveredFlags_RootWindow)
cur_window = GetCombinedRootWindow(cur_window, popup_hierarchy);
bool result;
if (flags & ImGuiHoveredFlags_ChildWindows)
result = IsWindowChildOf(ref_window, cur_window, popup_hierarchy);
else
result = (ref_window == cur_window);
if (!result)
return false;
}
if (!IsWindowContentHoverable(ref_window, flags))
return false;
if (!(flags & ImGuiHoveredFlags_AllowWhenBlockedByActiveItem))
if (g.ActiveId != 0 && !g.ActiveIdAllowOverlap && g.ActiveId != ref_window->MoveId)
return false;
return true;
}
bool ImGui::IsWindowFocused(ImGuiFocusedFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* ref_window = g.NavWindow;
ImGuiWindow* cur_window = g.CurrentWindow;
if (ref_window == NULL)
return false;
if (flags & ImGuiFocusedFlags_AnyWindow)
return true;
IM_ASSERT(cur_window); // Not inside a Begin()/End()
const bool popup_hierarchy = (flags & ImGuiFocusedFlags_NoPopupHierarchy) == 0;
if (flags & ImGuiHoveredFlags_RootWindow)
cur_window = GetCombinedRootWindow(cur_window, popup_hierarchy);
if (flags & ImGuiHoveredFlags_ChildWindows)
return IsWindowChildOf(ref_window, cur_window, popup_hierarchy);
else
return (ref_window == cur_window);
}
// Can we focus this window with CTRL+TAB (or PadMenu + PadFocusPrev/PadFocusNext)
// Note that NoNavFocus makes the window not reachable with CTRL+TAB but it can still be focused with mouse or programmatically.
// If you want a window to never be focused, you may use the e.g. NoInputs flag.
bool ImGui::IsWindowNavFocusable(ImGuiWindow* window)
{
return window->WasActive && window == window->RootWindow && !(window->Flags & ImGuiWindowFlags_NoNavFocus);
}
float ImGui::GetWindowWidth()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->Size.x;
}
float ImGui::GetWindowHeight()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->Size.y;
}
ImVec2 ImGui::GetWindowPos()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
return window->Pos;
}
void ImGui::SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond)
{
// Test condition (NB: bit 0 is always true) and clear flags for next time
if (cond && (window->SetWindowPosAllowFlags & cond) == 0)
return;
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
window->SetWindowPosAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
window->SetWindowPosVal = ImVec2(FLT_MAX, FLT_MAX);
// Set
const ImVec2 old_pos = window->Pos;
window->Pos = ImFloor(pos);
ImVec2 offset = window->Pos - old_pos;
if (offset.x == 0.0f && offset.y == 0.0f)
return;
MarkIniSettingsDirty(window);
window->DC.CursorPos += offset; // As we happen to move the window while it is being appended to (which is a bad idea - will smear) let's at least offset the cursor
window->DC.CursorMaxPos += offset; // And more importantly we need to offset CursorMaxPos/CursorStartPos this so ContentSize calculation doesn't get affected.
window->DC.IdealMaxPos += offset;
window->DC.CursorStartPos += offset;
}
void ImGui::SetWindowPos(const ImVec2& pos, ImGuiCond cond)
{
ImGuiWindow* window = GetCurrentWindowRead();
SetWindowPos(window, pos, cond);
}
void ImGui::SetWindowPos(const char* name, const ImVec2& pos, ImGuiCond cond)
{
if (ImGuiWindow* window = FindWindowByName(name))
SetWindowPos(window, pos, cond);
}
ImVec2 ImGui::GetWindowSize()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->Size;
}
void ImGui::SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond)
{
// Test condition (NB: bit 0 is always true) and clear flags for next time
if (cond && (window->SetWindowSizeAllowFlags & cond) == 0)
return;
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
window->SetWindowSizeAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
// Set
ImVec2 old_size = window->SizeFull;
window->AutoFitFramesX = (size.x <= 0.0f) ? 2 : 0;
window->AutoFitFramesY = (size.y <= 0.0f) ? 2 : 0;
if (size.x <= 0.0f)
window->AutoFitOnlyGrows = false;
else
window->SizeFull.x = IM_FLOOR(size.x);
if (size.y <= 0.0f)
window->AutoFitOnlyGrows = false;
else
window->SizeFull.y = IM_FLOOR(size.y);
if (old_size.x != window->SizeFull.x || old_size.y != window->SizeFull.y)
MarkIniSettingsDirty(window);
}
void ImGui::SetWindowSize(const ImVec2& size, ImGuiCond cond)
{
SetWindowSize(GImGui->CurrentWindow, size, cond);
}
void ImGui::SetWindowSize(const char* name, const ImVec2& size, ImGuiCond cond)
{
if (ImGuiWindow* window = FindWindowByName(name))
SetWindowSize(window, size, cond);
}
void ImGui::SetWindowCollapsed(ImGuiWindow* window, bool collapsed, ImGuiCond cond)
{
// Test condition (NB: bit 0 is always true) and clear flags for next time
if (cond && (window->SetWindowCollapsedAllowFlags & cond) == 0)
return;
window->SetWindowCollapsedAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
// Set
window->Collapsed = collapsed;
}
void ImGui::SetWindowHitTestHole(ImGuiWindow* window, const ImVec2& pos, const ImVec2& size)
{
IM_ASSERT(window->HitTestHoleSize.x == 0); // We don't support multiple holes/hit test filters
window->HitTestHoleSize = ImVec2ih(size);
window->HitTestHoleOffset = ImVec2ih(pos - window->Pos);
}
void ImGui::SetWindowHiddendAndSkipItemsForCurrentFrame(ImGuiWindow* window)
{
window->Hidden = window->SkipItems = true;
window->HiddenFramesCanSkipItems = 1;
}
void ImGui::SetWindowCollapsed(bool collapsed, ImGuiCond cond)
{
SetWindowCollapsed(GImGui->CurrentWindow, collapsed, cond);
}
bool ImGui::IsWindowCollapsed()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->Collapsed;
}
bool ImGui::IsWindowAppearing()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->Appearing;
}
void ImGui::SetWindowCollapsed(const char* name, bool collapsed, ImGuiCond cond)
{
if (ImGuiWindow* window = FindWindowByName(name))
SetWindowCollapsed(window, collapsed, cond);
}
void ImGui::SetWindowFocus()
{
FocusWindow(GImGui->CurrentWindow);
}
void ImGui::SetWindowFocus(const char* name)
{
if (name)
{
if (ImGuiWindow* window = FindWindowByName(name))
FocusWindow(window);
}
else
{
FocusWindow(NULL);
}
}
void ImGui::SetNextWindowPos(const ImVec2& pos, ImGuiCond cond, const ImVec2& pivot)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasPos;
g.NextWindowData.PosVal = pos;
g.NextWindowData.PosPivotVal = pivot;
g.NextWindowData.PosCond = cond ? cond : ImGuiCond_Always;
}
void ImGui::SetNextWindowSize(const ImVec2& size, ImGuiCond cond)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasSize;
g.NextWindowData.SizeVal = size;
g.NextWindowData.SizeCond = cond ? cond : ImGuiCond_Always;
}
void ImGui::SetNextWindowSizeConstraints(const ImVec2& size_min, const ImVec2& size_max, ImGuiSizeCallback custom_callback, void* custom_callback_user_data)
{
ImGuiContext& g = *GImGui;
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasSizeConstraint;
g.NextWindowData.SizeConstraintRect = ImRect(size_min, size_max);
g.NextWindowData.SizeCallback = custom_callback;
g.NextWindowData.SizeCallbackUserData = custom_callback_user_data;
}
// Content size = inner scrollable rectangle, padded with WindowPadding.
// SetNextWindowContentSize(ImVec2(100,100) + ImGuiWindowFlags_AlwaysAutoResize will always allow submitting a 100x100 item.
void ImGui::SetNextWindowContentSize(const ImVec2& size)
{
ImGuiContext& g = *GImGui;
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasContentSize;
g.NextWindowData.ContentSizeVal = ImFloor(size);
}
void ImGui::SetNextWindowScroll(const ImVec2& scroll)
{
ImGuiContext& g = *GImGui;
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasScroll;
g.NextWindowData.ScrollVal = scroll;
}
void ImGui::SetNextWindowCollapsed(bool collapsed, ImGuiCond cond)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasCollapsed;
g.NextWindowData.CollapsedVal = collapsed;
g.NextWindowData.CollapsedCond = cond ? cond : ImGuiCond_Always;
}
void ImGui::SetNextWindowFocus()
{
ImGuiContext& g = *GImGui;
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasFocus;
}
void ImGui::SetNextWindowBgAlpha(float alpha)
{
ImGuiContext& g = *GImGui;
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasBgAlpha;
g.NextWindowData.BgAlphaVal = alpha;
}
ImDrawList* ImGui::GetWindowDrawList()
{
ImGuiWindow* window = GetCurrentWindow();
return window->DrawList;
}
ImFont* ImGui::GetFont()
{
return GImGui->Font;
}
float ImGui::GetFontSize()
{
return GImGui->FontSize;
}
ImVec2 ImGui::GetFontTexUvWhitePixel()
{
return GImGui->DrawListSharedData.TexUvWhitePixel;
}
void ImGui::SetWindowFontScale(float scale)
{
IM_ASSERT(scale > 0.0f);
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
window->FontWindowScale = scale;
g.FontSize = g.DrawListSharedData.FontSize = window->CalcFontSize();
}
void ImGui::ActivateItem(ImGuiID id)
{
ImGuiContext& g = *GImGui;
g.NavNextActivateId = id;
g.NavNextActivateFlags = ImGuiActivateFlags_None;
}
void ImGui::PushFocusScope(ImGuiID id)
{
ImGuiContext& g = *GImGui;
g.FocusScopeStack.push_back(id);
g.CurrentFocusScopeId = id;
}
void ImGui::PopFocusScope()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.FocusScopeStack.Size > 0); // Too many PopFocusScope() ?
g.FocusScopeStack.pop_back();
g.CurrentFocusScopeId = g.FocusScopeStack.Size ? g.FocusScopeStack.back() : 0;
}
// Note: this will likely be called ActivateItem() once we rework our Focus/Activation system!
void ImGui::SetKeyboardFocusHere(int offset)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(offset >= -1); // -1 is allowed but not below
IMGUI_DEBUG_LOG_ACTIVEID("SetKeyboardFocusHere(%d) in window \"%s\"\n", offset, window->Name);
// It makes sense in the vast majority of cases to never interrupt a drag and drop.
// When we refactor this function into ActivateItem() we may want to make this an option.
// MovingWindow is protected from most user inputs using SetActiveIdUsingNavAndKeys(), but
// is also automatically dropped in the event g.ActiveId is stolen.
if (g.DragDropActive || g.MovingWindow != NULL)
{
IMGUI_DEBUG_LOG_ACTIVEID("SetKeyboardFocusHere() ignored while DragDropActive!\n");
return;
}
SetNavWindow(window);
ImGuiScrollFlags scroll_flags = window->Appearing ? ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleEdgeY;
NavMoveRequestSubmit(ImGuiDir_None, offset < 0 ? ImGuiDir_Up : ImGuiDir_Down, ImGuiNavMoveFlags_Tabbing | ImGuiNavMoveFlags_FocusApi, scroll_flags); // FIXME-NAV: Once we refactor tabbing, add LegacyApi flag to not activate non-inputable.
if (offset == -1)
{
NavMoveRequestResolveWithLastItem(&g.NavMoveResultLocal);
}
else
{
g.NavTabbingDir = 1;
g.NavTabbingCounter = offset + 1;
}
}
void ImGui::SetItemDefaultFocus()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (!window->Appearing)
return;
if (g.NavWindow != window->RootWindowForNav || (!g.NavInitRequest && g.NavInitResultId == 0) || g.NavLayer != window->DC.NavLayerCurrent)
return;
g.NavInitRequest = false;
g.NavInitResultId = g.LastItemData.ID;
g.NavInitResultRectRel = WindowRectAbsToRel(window, g.LastItemData.Rect);
NavUpdateAnyRequestFlag();
// Scroll could be done in NavInitRequestApplyResult() via an opt-in flag (we however don't want regular init requests to scroll)
if (!window->ClipRect.Contains(g.LastItemData.Rect))
ScrollToRectEx(window, g.LastItemData.Rect, ImGuiScrollFlags_None);
}
void ImGui::SetStateStorage(ImGuiStorage* tree)
{
ImGuiWindow* window = GImGui->CurrentWindow;
window->DC.StateStorage = tree ? tree : &window->StateStorage;
}
ImGuiStorage* ImGui::GetStateStorage()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->DC.StateStorage;
}
void ImGui::PushID(const char* str_id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiID id = window->GetID(str_id);
window->IDStack.push_back(id);
}
void ImGui::PushID(const char* str_id_begin, const char* str_id_end)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiID id = window->GetID(str_id_begin, str_id_end);
window->IDStack.push_back(id);
}
void ImGui::PushID(const void* ptr_id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiID id = window->GetID(ptr_id);
window->IDStack.push_back(id);
}
void ImGui::PushID(int int_id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiID id = window->GetID(int_id);
window->IDStack.push_back(id);
}
// Push a given id value ignoring the ID stack as a seed.
void ImGui::PushOverrideID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (g.DebugHookIdInfo == id)
DebugHookIdInfo(id, ImGuiDataType_ID, NULL, NULL);
window->IDStack.push_back(id);
}
// Helper to avoid a common series of PushOverrideID -> GetID() -> PopID() call
// (note that when using this pattern, TestEngine's "Stack Tool" will tend to not display the intermediate stack level.
// for that to work we would need to do PushOverrideID() -> ItemAdd() -> PopID() which would alter widget code a little more)
ImGuiID ImGui::GetIDWithSeed(const char* str, const char* str_end, ImGuiID seed)
{
ImGuiID id = ImHashStr(str, str_end ? (str_end - str) : 0, seed);
ImGuiContext& g = *GImGui;
if (g.DebugHookIdInfo == id)
DebugHookIdInfo(id, ImGuiDataType_String, str, str_end);
return id;
}
ImGuiID ImGui::GetIDWithSeed(int n, ImGuiID seed)
{
ImGuiID id = ImHashData(&n, sizeof(n), seed);
ImGuiContext& g = *GImGui;
if (g.DebugHookIdInfo == id)
DebugHookIdInfo(id, ImGuiDataType_S32, (void*)(intptr_t)n, NULL);
return id;
}
void ImGui::PopID()
{
ImGuiWindow* window = GImGui->CurrentWindow;
IM_ASSERT(window->IDStack.Size > 1); // Too many PopID(), or could be popping in a wrong/different window?
window->IDStack.pop_back();
}
ImGuiID ImGui::GetID(const char* str_id)
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->GetID(str_id);
}
ImGuiID ImGui::GetID(const char* str_id_begin, const char* str_id_end)
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->GetID(str_id_begin, str_id_end);
}
ImGuiID ImGui::GetID(const void* ptr_id)
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->GetID(ptr_id);
}
bool ImGui::IsRectVisible(const ImVec2& size)
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->ClipRect.Overlaps(ImRect(window->DC.CursorPos, window->DC.CursorPos + size));
}
bool ImGui::IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max)
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->ClipRect.Overlaps(ImRect(rect_min, rect_max));
}
//-----------------------------------------------------------------------------
// [SECTION] INPUTS
//-----------------------------------------------------------------------------
// - GetKeyData() [Internal]
// - GetKeyIndex() [Internal]
// - GetKeyName()
// - GetKeyChordName() [Internal]
// - CalcTypematicRepeatAmount() [Internal]
// - GetTypematicRepeatRate() [Internal]
// - GetKeyPressedAmount() [Internal]
// - GetKeyMagnitude2d() [Internal]
//-----------------------------------------------------------------------------
// - UpdateKeyRoutingTable() [Internal]
// - GetRoutingIdFromOwnerId() [Internal]
// - GetShortcutRoutingData() [Internal]
// - CalcRoutingScore() [Internal]
// - SetShortcutRouting() [Internal]
// - TestShortcutRouting() [Internal]
//-----------------------------------------------------------------------------
// - IsKeyDown()
// - IsKeyPressed()
// - IsKeyReleased()
//-----------------------------------------------------------------------------
// - IsMouseDown()
// - IsMouseClicked()
// - IsMouseReleased()
// - IsMouseDoubleClicked()
// - GetMouseClickedCount()
// - IsMouseHoveringRect() [Internal]
// - IsMouseDragPastThreshold() [Internal]
// - IsMouseDragging()
// - GetMousePos()
// - GetMousePosOnOpeningCurrentPopup()
// - IsMousePosValid()
// - IsAnyMouseDown()
// - GetMouseDragDelta()
// - ResetMouseDragDelta()
// - GetMouseCursor()
// - SetMouseCursor()
//-----------------------------------------------------------------------------
// - UpdateAliasKey()
// - GetMergedModsFromKeys()
// - UpdateKeyboardInputs()
// - UpdateMouseInputs()
//-----------------------------------------------------------------------------
// - LockWheelingWindow [Internal]
// - FindBestWheelingWindow [Internal]
// - UpdateMouseWheel() [Internal]
//-----------------------------------------------------------------------------
// - SetNextFrameWantCaptureKeyboard()
// - SetNextFrameWantCaptureMouse()
//-----------------------------------------------------------------------------
// - GetInputSourceName() [Internal]
// - DebugPrintInputEvent() [Internal]
// - UpdateInputEvents() [Internal]
//-----------------------------------------------------------------------------
// - GetKeyOwner() [Internal]
// - TestKeyOwner() [Internal]
// - SetKeyOwner() [Internal]
// - SetItemKeyOwner() [Internal]
// - Shortcut() [Internal]
//-----------------------------------------------------------------------------
ImGuiKeyData* ImGui::GetKeyData(ImGuiKey key)
{
ImGuiContext& g = *GImGui;
// Special storage location for mods
if (key & ImGuiMod_Mask_)
key = ConvertSingleModFlagToKey(key);
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
IM_ASSERT(key >= ImGuiKey_LegacyNativeKey_BEGIN && key < ImGuiKey_NamedKey_END);
if (IsLegacyKey(key) && g.IO.KeyMap[key] != -1)
key = (ImGuiKey)g.IO.KeyMap[key]; // Remap native->imgui or imgui->native
#else
IM_ASSERT(IsNamedKey(key) && "Support for user key indices was dropped in favor of ImGuiKey. Please update backend & user code.");
#endif
return &g.IO.KeysData[key - ImGuiKey_KeysData_OFFSET];
}
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
ImGuiKey ImGui::GetKeyIndex(ImGuiKey key)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(IsNamedKey(key));
const ImGuiKeyData* key_data = GetKeyData(key);
return (ImGuiKey)(key_data - g.IO.KeysData);
}
#endif
// Those names a provided for debugging purpose and are not meant to be saved persistently not compared.
static const char* const GKeyNames[] =
{
"Tab", "LeftArrow", "RightArrow", "UpArrow", "DownArrow", "PageUp", "PageDown",
"Home", "End", "Insert", "Delete", "Backspace", "Space", "Enter", "Escape",
"LeftCtrl", "LeftShift", "LeftAlt", "LeftSuper", "RightCtrl", "RightShift", "RightAlt", "RightSuper", "Menu",
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H",
"I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12",
"Apostrophe", "Comma", "Minus", "Period", "Slash", "Semicolon", "Equal", "LeftBracket",
"Backslash", "RightBracket", "GraveAccent", "CapsLock", "ScrollLock", "NumLock", "PrintScreen",
"Pause", "Keypad0", "Keypad1", "Keypad2", "Keypad3", "Keypad4", "Keypad5", "Keypad6",
"Keypad7", "Keypad8", "Keypad9", "KeypadDecimal", "KeypadDivide", "KeypadMultiply",
"KeypadSubtract", "KeypadAdd", "KeypadEnter", "KeypadEqual",
"GamepadStart", "GamepadBack",
"GamepadFaceLeft", "GamepadFaceRight", "GamepadFaceUp", "GamepadFaceDown",
"GamepadDpadLeft", "GamepadDpadRight", "GamepadDpadUp", "GamepadDpadDown",
"GamepadL1", "GamepadR1", "GamepadL2", "GamepadR2", "GamepadL3", "GamepadR3",
"GamepadLStickLeft", "GamepadLStickRight", "GamepadLStickUp", "GamepadLStickDown",
"GamepadRStickLeft", "GamepadRStickRight", "GamepadRStickUp", "GamepadRStickDown",
"MouseLeft", "MouseRight", "MouseMiddle", "MouseX1", "MouseX2", "MouseWheelX", "MouseWheelY",
"ModCtrl", "ModShift", "ModAlt", "ModSuper", // ReservedForModXXX are showing the ModXXX names.
};
IM_STATIC_ASSERT(ImGuiKey_NamedKey_COUNT == IM_ARRAYSIZE(GKeyNames));
const char* ImGui::GetKeyName(ImGuiKey key)
{
#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
IM_ASSERT((IsNamedKey(key) || key == ImGuiKey_None) && "Support for user key indices was dropped in favor of ImGuiKey. Please update backend and user code.");
#else
if (IsLegacyKey(key))
{
ImGuiIO& io = GetIO();
if (io.KeyMap[key] == -1)
return "N/A";
IM_ASSERT(IsNamedKey((ImGuiKey)io.KeyMap[key]));
key = (ImGuiKey)io.KeyMap[key];
}
#endif
if (key == ImGuiKey_None)
return "None";
if (key & ImGuiMod_Mask_)
key = ConvertSingleModFlagToKey(key);
if (!IsNamedKey(key))
return "Unknown";
return GKeyNames[key - ImGuiKey_NamedKey_BEGIN];
}
// ImGuiMod_Shortcut is translated to either Ctrl or Super.
void ImGui::GetKeyChordName(ImGuiKeyChord key_chord, char* out_buf, int out_buf_size)
{
ImGuiContext& g = *GImGui;
if (key_chord & ImGuiMod_Shortcut)
key_chord = ConvertShortcutMod(key_chord);
ImFormatString(out_buf, (size_t)out_buf_size, "%s%s%s%s%s",
(key_chord & ImGuiMod_Ctrl) ? "Ctrl+" : "",
(key_chord & ImGuiMod_Shift) ? "Shift+" : "",
(key_chord & ImGuiMod_Alt) ? "Alt+" : "",
(key_chord & ImGuiMod_Super) ? (g.IO.ConfigMacOSXBehaviors ? "Cmd+" : "Super+") : "",
GetKeyName((ImGuiKey)(key_chord & ~ImGuiMod_Mask_)));
}
// t0 = previous time (e.g.: g.Time - g.IO.DeltaTime)
// t1 = current time (e.g.: g.Time)
// An event is triggered at:
// t = 0.0f t = repeat_delay, t = repeat_delay + repeat_rate*N
int ImGui::CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate)
{
if (t1 == 0.0f)
return 1;
if (t0 >= t1)
return 0;
if (repeat_rate <= 0.0f)
return (t0 < repeat_delay) && (t1 >= repeat_delay);
const int count_t0 = (t0 < repeat_delay) ? -1 : (int)((t0 - repeat_delay) / repeat_rate);
const int count_t1 = (t1 < repeat_delay) ? -1 : (int)((t1 - repeat_delay) / repeat_rate);
const int count = count_t1 - count_t0;
return count;
}
void ImGui::GetTypematicRepeatRate(ImGuiInputFlags flags, float* repeat_delay, float* repeat_rate)
{
ImGuiContext& g = *GImGui;
switch (flags & ImGuiInputFlags_RepeatRateMask_)
{
case ImGuiInputFlags_RepeatRateNavMove: *repeat_delay = g.IO.KeyRepeatDelay * 0.72f; *repeat_rate = g.IO.KeyRepeatRate * 0.80f; return;
case ImGuiInputFlags_RepeatRateNavTweak: *repeat_delay = g.IO.KeyRepeatDelay * 0.72f; *repeat_rate = g.IO.KeyRepeatRate * 0.30f; return;
case ImGuiInputFlags_RepeatRateDefault: default: *repeat_delay = g.IO.KeyRepeatDelay * 1.00f; *repeat_rate = g.IO.KeyRepeatRate * 1.00f; return;
}
}
// Return value representing the number of presses in the last time period, for the given repeat rate
// (most often returns 0 or 1. The result is generally only >1 when RepeatRate is smaller than DeltaTime, aka large DeltaTime or fast RepeatRate)
int ImGui::GetKeyPressedAmount(ImGuiKey key, float repeat_delay, float repeat_rate)
{
ImGuiContext& g = *GImGui;
const ImGuiKeyData* key_data = GetKeyData(key);
if (!key_data->Down) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership)
return 0;
const float t = key_data->DownDuration;
return CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, repeat_delay, repeat_rate);
}
// Return 2D vector representing the combination of four cardinal direction, with analog value support (for e.g. ImGuiKey_GamepadLStick* values).
ImVec2 ImGui::GetKeyMagnitude2d(ImGuiKey key_left, ImGuiKey key_right, ImGuiKey key_up, ImGuiKey key_down)
{
return ImVec2(
GetKeyData(key_right)->AnalogValue - GetKeyData(key_left)->AnalogValue,
GetKeyData(key_down)->AnalogValue - GetKeyData(key_up)->AnalogValue);
}
// Rewrite routing data buffers to strip old entries + sort by key to make queries not touch scattered data.
// Entries D,A,B,B,A,C,B --> A,A,B,B,B,C,D
// Index A:1 B:2 C:5 D:0 --> A:0 B:2 C:5 D:6
// See 'Metrics->Key Owners & Shortcut Routing' to visualize the result of that operation.
static void ImGui::UpdateKeyRoutingTable(ImGuiKeyRoutingTable* rt)
{
ImGuiContext& g = *GImGui;
rt->EntriesNext.resize(0);
for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
{
const int new_routing_start_idx = rt->EntriesNext.Size;
ImGuiKeyRoutingData* routing_entry;
for (int old_routing_idx = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; old_routing_idx != -1; old_routing_idx = routing_entry->NextEntryIndex)
{
routing_entry = &rt->Entries[old_routing_idx];
routing_entry->RoutingCurr = routing_entry->RoutingNext; // Update entry
routing_entry->RoutingNext = ImGuiKeyOwner_None;
routing_entry->RoutingNextScore = 255;
if (routing_entry->RoutingCurr == ImGuiKeyOwner_None)
continue;
rt->EntriesNext.push_back(*routing_entry); // Write alive ones into new buffer
// Apply routing to owner if there's no owner already (RoutingCurr == None at this point)
if (routing_entry->Mods == g.IO.KeyMods)
{
ImGuiKeyOwnerData* owner_data = ImGui::GetKeyOwnerData(key);
if (owner_data->OwnerCurr == ImGuiKeyOwner_None)
owner_data->OwnerCurr = routing_entry->RoutingCurr;
}
}
// Rewrite linked-list
rt->Index[key - ImGuiKey_NamedKey_BEGIN] = (ImGuiKeyRoutingIndex)(new_routing_start_idx < rt->EntriesNext.Size ? new_routing_start_idx : -1);
for (int n = new_routing_start_idx; n < rt->EntriesNext.Size; n++)
rt->EntriesNext[n].NextEntryIndex = (ImGuiKeyRoutingIndex)((n + 1 < rt->EntriesNext.Size) ? n + 1 : -1);
}
rt->Entries.swap(rt->EntriesNext); // Swap new and old indexes
}
// owner_id may be None/Any, but routing_id needs to be always be set, so we default to GetCurrentFocusScope().
static inline ImGuiID GetRoutingIdFromOwnerId(ImGuiID owner_id)
{
ImGuiContext& g = *GImGui;
return (owner_id != ImGuiKeyOwner_None && owner_id != ImGuiKeyOwner_Any) ? owner_id : g.CurrentFocusScopeId;
}
ImGuiKeyRoutingData* ImGui::GetShortcutRoutingData(ImGuiKeyChord key_chord)
{
// Majority of shortcuts will be Key + any number of Mods
// We accept _Single_ mod with ImGuiKey_None.
// - Shortcut(ImGuiKey_S | ImGuiMod_Ctrl); // Legal
// - Shortcut(ImGuiKey_S | ImGuiMod_Ctrl | ImGuiMod_Shift); // Legal
// - Shortcut(ImGuiMod_Ctrl); // Legal
// - Shortcut(ImGuiMod_Ctrl | ImGuiMod_Shift); // Not legal
ImGuiContext& g = *GImGui;
ImGuiKeyRoutingTable* rt = &g.KeysRoutingTable;
ImGuiKeyRoutingData* routing_data;
if (key_chord & ImGuiMod_Shortcut)
key_chord = ConvertShortcutMod(key_chord);
ImGuiKey key = (ImGuiKey)(key_chord & ~ImGuiMod_Mask_);
ImGuiKey mods = (ImGuiKey)(key_chord & ImGuiMod_Mask_);
if (key == ImGuiKey_None)
key = ConvertSingleModFlagToKey(mods);
IM_ASSERT(IsNamedKey(key));
// Get (in the majority of case, the linked list will have one element so this should be 2 reads.
// Subsequent elements will be contiguous in memory as list is sorted/rebuilt in NewFrame).
for (ImGuiKeyRoutingIndex idx = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; idx != -1; idx = routing_data->NextEntryIndex)
{
routing_data = &rt->Entries[idx];
if (routing_data->Mods == mods)
return routing_data;
}
// Add to linked-list
ImGuiKeyRoutingIndex routing_data_idx = (ImGuiKeyRoutingIndex)rt->Entries.Size;
rt->Entries.push_back(ImGuiKeyRoutingData());
routing_data = &rt->Entries[routing_data_idx];
routing_data->Mods = (ImU16)mods;
routing_data->NextEntryIndex = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; // Setup linked list
rt->Index[key - ImGuiKey_NamedKey_BEGIN] = routing_data_idx;
return routing_data;
}
// Current score encoding (lower is highest priority):
// - 0: ImGuiInputFlags_RouteGlobalHigh
// - 1: ImGuiInputFlags_RouteFocused (if item active)
// - 2: ImGuiInputFlags_RouteGlobal
// - 3+: ImGuiInputFlags_RouteFocused (if window in focus-stack)
// - 254: ImGuiInputFlags_RouteGlobalLow
// - 255: never route
// 'flags' should include an explicit routing policy
static int CalcRoutingScore(ImGuiWindow* location, ImGuiID owner_id, ImGuiInputFlags flags)
{
if (flags & ImGuiInputFlags_RouteFocused)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* focused = g.NavWindow;
// ActiveID gets top priority
// (we don't check g.ActiveIdUsingAllKeys here. Routing is applied but if input ownership is tested later it may discard it)
if (owner_id != 0 && g.ActiveId == owner_id)
return 1;
// Score based on distance to focused window (lower is better)
// Assuming both windows are submitting a routing request,
// - When Window....... is focused -> Window scores 3 (best), Window/ChildB scores 255 (no match)
// - When Window/ChildB is focused -> Window scores 4, Window/ChildB scores 3 (best)
// Assuming only WindowA is submitting a routing request,
// - When Window/ChildB is focused -> Window scores 4 (best), Window/ChildB doesn't have a score.
if (focused != NULL && focused->RootWindow == location->RootWindow)
for (int next_score = 3; focused != NULL; next_score++)
{
if (focused == location)
{
IM_ASSERT(next_score < 255);
return next_score;
}
focused = (focused->RootWindow != focused) ? focused->ParentWindow : NULL; // FIXME: This could be later abstracted as a focus path
}
return 255;
}
// ImGuiInputFlags_RouteGlobalHigh is default, so calls without flags are not conditional
if (flags & ImGuiInputFlags_RouteGlobal)
return 2;
if (flags & ImGuiInputFlags_RouteGlobalLow)
return 254;
return 0;
}
// Request a desired route for an input chord (key + mods).
// Return true if the route is available this frame.
// - Routes and key ownership are attributed at the beginning of next frame based on best score and mod state.
// (Conceptually this does a "Submit for next frame" + "Test for current frame".
// As such, it could be called TrySetXXX or SubmitXXX, or the Submit and Test operations should be separate.)
// - Using 'owner_id == ImGuiKeyOwner_Any/0': auto-assign an owner based on current focus scope (each window has its focus scope by default)
// - Using 'owner_id == ImGuiKeyOwner_None': allows disabling/locking a shortcut.
bool ImGui::SetShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id, ImGuiInputFlags flags)
{
ImGuiContext& g = *GImGui;
if ((flags & ImGuiInputFlags_RouteMask_) == 0)
flags |= ImGuiInputFlags_RouteGlobalHigh; // IMPORTANT: This is the default for SetShortcutRouting() but NOT Shortcut()
else
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiInputFlags_RouteMask_)); // Check that only 1 routing flag is used
if (flags & ImGuiInputFlags_RouteUnlessBgFocused)
if (g.NavWindow == NULL)
return false;
if (flags & ImGuiInputFlags_RouteAlways)
return true;
const int score = CalcRoutingScore(g.CurrentWindow, owner_id, flags);
if (score == 255)
return false;
// Submit routing for NEXT frame (assuming score is sufficient)
// FIXME: Could expose a way to use a "serve last" policy for same score resolution (using <= instead of <).
ImGuiKeyRoutingData* routing_data = GetShortcutRoutingData(key_chord);
const ImGuiID routing_id = GetRoutingIdFromOwnerId(owner_id);
//const bool set_route = (flags & ImGuiInputFlags_ServeLast) ? (score <= routing_data->RoutingNextScore) : (score < routing_data->RoutingNextScore);
if (score < routing_data->RoutingNextScore)
{
routing_data->RoutingNext = routing_id;
routing_data->RoutingNextScore = (ImU8)score;
}
// Return routing state for CURRENT frame
return routing_data->RoutingCurr == routing_id;
}
// Currently unused by core (but used by tests)
// Note: this cannot be turned into GetShortcutRouting() because we do the owner_id->routing_id translation, name would be more misleading.
bool ImGui::TestShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id)
{
const ImGuiID routing_id = GetRoutingIdFromOwnerId(owner_id);
ImGuiKeyRoutingData* routing_data = GetShortcutRoutingData(key_chord); // FIXME: Could avoid creating entry.
return routing_data->RoutingCurr == routing_id;
}
// Note that Dear ImGui doesn't know the meaning/semantic of ImGuiKey from 0..511: they are legacy native keycodes.
// Consider transitioning from 'IsKeyDown(MY_ENGINE_KEY_A)' (<1.87) to IsKeyDown(ImGuiKey_A) (>= 1.87)
bool ImGui::IsKeyDown(ImGuiKey key)
{
return IsKeyDown(key, ImGuiKeyOwner_Any);
}
bool ImGui::IsKeyDown(ImGuiKey key, ImGuiID owner_id)
{
const ImGuiKeyData* key_data = GetKeyData(key);
if (!key_data->Down)
return false;
if (!TestKeyOwner(key, owner_id))
return false;
return true;
}
bool ImGui::IsKeyPressed(ImGuiKey key, bool repeat)
{
return IsKeyPressed(key, ImGuiKeyOwner_Any, repeat ? ImGuiInputFlags_Repeat : ImGuiInputFlags_None);
}
// Important: unless legacy IsKeyPressed(ImGuiKey, bool repeat=true) which DEFAULT to repeat, this requires EXPLICIT repeat.
bool ImGui::IsKeyPressed(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags)
{
const ImGuiKeyData* key_data = GetKeyData(key);
if (!key_data->Down) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership)
return false;
const float t = key_data->DownDuration;
if (t < 0.0f)
return false;
IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByIsKeyPressed) == 0); // Passing flags not supported by this function!
bool pressed = (t == 0.0f);
if (!pressed && ((flags & ImGuiInputFlags_Repeat) != 0))
{
float repeat_delay, repeat_rate;
GetTypematicRepeatRate(flags, &repeat_delay, &repeat_rate);
pressed = (t > repeat_delay) && GetKeyPressedAmount(key, repeat_delay, repeat_rate) > 0;
}
if (!pressed)
return false;
if (!TestKeyOwner(key, owner_id))
return false;
return true;
}
bool ImGui::IsKeyReleased(ImGuiKey key)
{
return IsKeyReleased(key, ImGuiKeyOwner_Any);
}
bool ImGui::IsKeyReleased(ImGuiKey key, ImGuiID owner_id)
{
const ImGuiKeyData* key_data = GetKeyData(key);
if (key_data->DownDurationPrev < 0.0f || key_data->Down)
return false;
if (!TestKeyOwner(key, owner_id))
return false;
return true;
}
bool ImGui::IsMouseDown(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseDown[button] && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); // should be same as IsKeyDown(MouseButtonToKey(button), ImGuiKeyOwner_Any), but this allows legacy code hijacking the io.Mousedown[] array.
}
bool ImGui::IsMouseDown(ImGuiMouseButton button, ImGuiID owner_id)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseDown[button] && TestKeyOwner(MouseButtonToKey(button), owner_id); // Should be same as IsKeyDown(MouseButtonToKey(button), owner_id), but this allows legacy code hijacking the io.Mousedown[] array.
}
bool ImGui::IsMouseClicked(ImGuiMouseButton button, bool repeat)
{
return IsMouseClicked(button, ImGuiKeyOwner_Any, repeat ? ImGuiInputFlags_Repeat : ImGuiInputFlags_None);
}
bool ImGui::IsMouseClicked(ImGuiMouseButton button, ImGuiID owner_id, ImGuiInputFlags flags)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
if (!g.IO.MouseDown[button]) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership)
return false;
const float t = g.IO.MouseDownDuration[button];
if (t < 0.0f)
return false;
IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByIsKeyPressed) == 0); // Passing flags not supported by this function!
const bool repeat = (flags & ImGuiInputFlags_Repeat) != 0;
const bool pressed = (t == 0.0f) || (repeat && t > g.IO.KeyRepeatDelay && CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay, g.IO.KeyRepeatRate) > 0);
if (!pressed)
return false;
if (!TestKeyOwner(MouseButtonToKey(button), owner_id))
return false;
return true;
}
bool ImGui::IsMouseReleased(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseReleased[button] && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); // Should be same as IsKeyReleased(MouseButtonToKey(button), ImGuiKeyOwner_Any)
}
bool ImGui::IsMouseReleased(ImGuiMouseButton button, ImGuiID owner_id)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseReleased[button] && TestKeyOwner(MouseButtonToKey(button), owner_id); // Should be same as IsKeyReleased(MouseButtonToKey(button), owner_id)
}
bool ImGui::IsMouseDoubleClicked(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseClickedCount[button] == 2 && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any);
}
int ImGui::GetMouseClickedCount(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
return g.IO.MouseClickedCount[button];
}
// Test if mouse cursor is hovering given rectangle
// NB- Rectangle is clipped by our current clip setting
// NB- Expand the rectangle to be generous on imprecise inputs systems (g.Style.TouchExtraPadding)
bool ImGui::IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip)
{
ImGuiContext& g = *GImGui;
// Clip
ImRect rect_clipped(r_min, r_max);
if (clip)
rect_clipped.ClipWith(g.CurrentWindow->ClipRect);
// Expand for touch input
const ImRect rect_for_touch(rect_clipped.Min - g.Style.TouchExtraPadding, rect_clipped.Max + g.Style.TouchExtraPadding);
if (!rect_for_touch.Contains(g.IO.MousePos))
return false;
return true;
}
// Return if a mouse click/drag went past the given threshold. Valid to call during the MouseReleased frame.
// [Internal] This doesn't test if the button is pressed
bool ImGui::IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
if (lock_threshold < 0.0f)
lock_threshold = g.IO.MouseDragThreshold;
return g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold;
}
bool ImGui::IsMouseDragging(ImGuiMouseButton button, float lock_threshold)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
if (!g.IO.MouseDown[button])
return false;
return IsMouseDragPastThreshold(button, lock_threshold);
}
ImVec2 ImGui::GetMousePos()
{
ImGuiContext& g = *GImGui;
return g.IO.MousePos;
}
// NB: prefer to call right after BeginPopup(). At the time Selectable/MenuItem is activated, the popup is already closed!
ImVec2 ImGui::GetMousePosOnOpeningCurrentPopup()
{
ImGuiContext& g = *GImGui;
if (g.BeginPopupStack.Size > 0)
return g.OpenPopupStack[g.BeginPopupStack.Size - 1].OpenMousePos;
return g.IO.MousePos;
}
// We typically use ImVec2(-FLT_MAX,-FLT_MAX) to denote an invalid mouse position.
bool ImGui::IsMousePosValid(const ImVec2* mouse_pos)
{
// The assert is only to silence a false-positive in XCode Static Analysis.
// Because GImGui is not dereferenced in every code path, the static analyzer assume that it may be NULL (which it doesn't for other functions).
IM_ASSERT(GImGui != NULL);
const float MOUSE_INVALID = -256000.0f;
ImVec2 p = mouse_pos ? *mouse_pos : GImGui->IO.MousePos;
return p.x >= MOUSE_INVALID && p.y >= MOUSE_INVALID;
}
// [WILL OBSOLETE] This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid.
bool ImGui::IsAnyMouseDown()
{
ImGuiContext& g = *GImGui;
for (int n = 0; n < IM_ARRAYSIZE(g.IO.MouseDown); n++)
if (g.IO.MouseDown[n])
return true;
return false;
}
// Return the delta from the initial clicking position while the mouse button is clicked or was just released.
// This is locked and return 0.0f until the mouse moves past a distance threshold at least once.
// NB: This is only valid if IsMousePosValid(). backends in theory should always keep mouse position valid when dragging even outside the client window.
ImVec2 ImGui::GetMouseDragDelta(ImGuiMouseButton button, float lock_threshold)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
if (lock_threshold < 0.0f)
lock_threshold = g.IO.MouseDragThreshold;
if (g.IO.MouseDown[button] || g.IO.MouseReleased[button])
if (g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold)
if (IsMousePosValid(&g.IO.MousePos) && IsMousePosValid(&g.IO.MouseClickedPos[button]))
return g.IO.MousePos - g.IO.MouseClickedPos[button];
return ImVec2(0.0f, 0.0f);
}
void ImGui::ResetMouseDragDelta(ImGuiMouseButton button)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
// NB: We don't need to reset g.IO.MouseDragMaxDistanceSqr
g.IO.MouseClickedPos[button] = g.IO.MousePos;
}
// Get desired mouse cursor shape.
// Important: this is meant to be used by a platform backend, it is reset in ImGui::NewFrame(),
// updated during the frame, and locked in EndFrame()/Render().
// If you use software rendering by setting io.MouseDrawCursor then Dear ImGui will render those for you
ImGuiMouseCursor ImGui::GetMouseCursor()
{
ImGuiContext& g = *GImGui;
return g.MouseCursor;
}
void ImGui::SetMouseCursor(ImGuiMouseCursor cursor_type)
{
ImGuiContext& g = *GImGui;
g.MouseCursor = cursor_type;
}
static void UpdateAliasKey(ImGuiKey key, bool v, float analog_value)
{
IM_ASSERT(ImGui::IsAliasKey(key));
ImGuiKeyData* key_data = ImGui::GetKeyData(key);
key_data->Down = v;
key_data->AnalogValue = analog_value;
}
// [Internal] Do not use directly
static ImGuiKeyChord GetMergedModsFromKeys()
{
ImGuiKeyChord mods = 0;
if (ImGui::IsKeyDown(ImGuiMod_Ctrl)) { mods |= ImGuiMod_Ctrl; }
if (ImGui::IsKeyDown(ImGuiMod_Shift)) { mods |= ImGuiMod_Shift; }
if (ImGui::IsKeyDown(ImGuiMod_Alt)) { mods |= ImGuiMod_Alt; }
if (ImGui::IsKeyDown(ImGuiMod_Super)) { mods |= ImGuiMod_Super; }
return mods;
}
static void ImGui::UpdateKeyboardInputs()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Import legacy keys or verify they are not used
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
if (io.BackendUsingLegacyKeyArrays == 0)
{
// Backend used new io.AddKeyEvent() API: Good! Verify that old arrays are never written to externally.
for (int n = 0; n < ImGuiKey_LegacyNativeKey_END; n++)
IM_ASSERT((io.KeysDown[n] == false || IsKeyDown((ImGuiKey)n)) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
}
else
{
if (g.FrameCount == 0)
for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
IM_ASSERT(g.IO.KeyMap[n] == -1 && "Backend is not allowed to write to io.KeyMap[0..511]!");
// Build reverse KeyMap (Named -> Legacy)
for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
if (io.KeyMap[n] != -1)
{
IM_ASSERT(IsLegacyKey((ImGuiKey)io.KeyMap[n]));
io.KeyMap[io.KeyMap[n]] = n;
}
// Import legacy keys into new ones
for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
if (io.KeysDown[n] || io.BackendUsingLegacyKeyArrays == 1)
{
const ImGuiKey key = (ImGuiKey)(io.KeyMap[n] != -1 ? io.KeyMap[n] : n);
IM_ASSERT(io.KeyMap[n] == -1 || IsNamedKey(key));
io.KeysData[key].Down = io.KeysDown[n];
if (key != n)
io.KeysDown[key] = io.KeysDown[n]; // Allow legacy code using io.KeysDown[GetKeyIndex()] with old backends
io.BackendUsingLegacyKeyArrays = 1;
}
if (io.BackendUsingLegacyKeyArrays == 1)
{
GetKeyData(ImGuiMod_Ctrl)->Down = io.KeyCtrl;
GetKeyData(ImGuiMod_Shift)->Down = io.KeyShift;
GetKeyData(ImGuiMod_Alt)->Down = io.KeyAlt;
GetKeyData(ImGuiMod_Super)->Down = io.KeySuper;
}
}
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
if (io.BackendUsingLegacyNavInputArray && nav_gamepad_active)
{
#define MAP_LEGACY_NAV_INPUT_TO_KEY1(_KEY, _NAV1) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f); io.KeysData[_KEY].AnalogValue = io.NavInputs[_NAV1]; } while (0)
#define MAP_LEGACY_NAV_INPUT_TO_KEY2(_KEY, _NAV1, _NAV2) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f) || (io.NavInputs[_NAV2] > 0.0f); io.KeysData[_KEY].AnalogValue = ImMax(io.NavInputs[_NAV1], io.NavInputs[_NAV2]); } while (0)
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceDown, ImGuiNavInput_Activate);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceRight, ImGuiNavInput_Cancel);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceLeft, ImGuiNavInput_Menu);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceUp, ImGuiNavInput_Input);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadLeft, ImGuiNavInput_DpadLeft);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadRight, ImGuiNavInput_DpadRight);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadUp, ImGuiNavInput_DpadUp);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadDown, ImGuiNavInput_DpadDown);
MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadL1, ImGuiNavInput_FocusPrev, ImGuiNavInput_TweakSlow);
MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadR1, ImGuiNavInput_FocusNext, ImGuiNavInput_TweakFast);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickLeft, ImGuiNavInput_LStickLeft);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickRight, ImGuiNavInput_LStickRight);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickUp, ImGuiNavInput_LStickUp);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickDown, ImGuiNavInput_LStickDown);
#undef NAV_MAP_KEY
}
#endif
#endif
// Update aliases
for (int n = 0; n < ImGuiMouseButton_COUNT; n++)
UpdateAliasKey(MouseButtonToKey(n), io.MouseDown[n], io.MouseDown[n] ? 1.0f : 0.0f);
UpdateAliasKey(ImGuiKey_MouseWheelX, io.MouseWheelH != 0.0f, io.MouseWheelH);
UpdateAliasKey(ImGuiKey_MouseWheelY, io.MouseWheel != 0.0f, io.MouseWheel);
// Synchronize io.KeyMods and io.KeyXXX values.
// - New backends (1.87+): send io.AddKeyEvent(ImGuiMod_XXX) -> -> (here) deriving io.KeyMods + io.KeyXXX from key array.
// - Legacy backends: set io.KeyXXX bools -> (above) set key array from io.KeyXXX -> (here) deriving io.KeyMods + io.KeyXXX from key array.
// So with legacy backends the 4 values will do a unnecessary back-and-forth but it makes the code simpler and future facing.
io.KeyMods = GetMergedModsFromKeys();
io.KeyCtrl = (io.KeyMods & ImGuiMod_Ctrl) != 0;
io.KeyShift = (io.KeyMods & ImGuiMod_Shift) != 0;
io.KeyAlt = (io.KeyMods & ImGuiMod_Alt) != 0;
io.KeySuper = (io.KeyMods & ImGuiMod_Super) != 0;
// Clear gamepad data if disabled
if ((io.BackendFlags & ImGuiBackendFlags_HasGamepad) == 0)
for (int i = ImGuiKey_Gamepad_BEGIN; i < ImGuiKey_Gamepad_END; i++)
{
io.KeysData[i - ImGuiKey_KeysData_OFFSET].Down = false;
io.KeysData[i - ImGuiKey_KeysData_OFFSET].AnalogValue = 0.0f;
}
// Update keys
for (int i = 0; i < ImGuiKey_KeysData_SIZE; i++)
{
ImGuiKeyData* key_data = &io.KeysData[i];
key_data->DownDurationPrev = key_data->DownDuration;
key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f;
}
// Update keys/input owner (named keys only): one entry per key
for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
{
ImGuiKeyData* key_data = &io.KeysData[key - ImGuiKey_KeysData_OFFSET];
ImGuiKeyOwnerData* owner_data = &g.KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN];
owner_data->OwnerCurr = owner_data->OwnerNext;
if (!key_data->Down) // Important: ownership is released on the frame after a release. Ensure a 'MouseDown -> CloseWindow -> MouseUp' chain doesn't lead to someone else seeing the MouseUp.
owner_data->OwnerNext = ImGuiKeyOwner_None;
owner_data->LockThisFrame = owner_data->LockUntilRelease = owner_data->LockUntilRelease && key_data->Down; // Clear LockUntilRelease when key is not Down anymore
}
UpdateKeyRoutingTable(&g.KeysRoutingTable);
}
static void ImGui::UpdateMouseInputs()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Round mouse position to avoid spreading non-rounded position (e.g. UpdateManualResize doesn't support them well)
if (IsMousePosValid(&io.MousePos))
io.MousePos = g.MouseLastValidPos = ImFloorSigned(io.MousePos);
// If mouse just appeared or disappeared (usually denoted by -FLT_MAX components) we cancel out movement in MouseDelta
if (IsMousePosValid(&io.MousePos) && IsMousePosValid(&io.MousePosPrev))
io.MouseDelta = io.MousePos - io.MousePosPrev;
else
io.MouseDelta = ImVec2(0.0f, 0.0f);
// If mouse moved we re-enable mouse hovering in case it was disabled by gamepad/keyboard. In theory should use a >0.0f threshold but would need to reset in everywhere we set this to true.
if (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f)
g.NavDisableMouseHover = false;
io.MousePosPrev = io.MousePos;
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
io.MouseClicked[i] = io.MouseDown[i] && io.MouseDownDuration[i] < 0.0f;
io.MouseClickedCount[i] = 0; // Will be filled below
io.MouseReleased[i] = !io.MouseDown[i] && io.MouseDownDuration[i] >= 0.0f;
io.MouseDownDurationPrev[i] = io.MouseDownDuration[i];
io.MouseDownDuration[i] = io.MouseDown[i] ? (io.MouseDownDuration[i] < 0.0f ? 0.0f : io.MouseDownDuration[i] + io.DeltaTime) : -1.0f;
if (io.MouseClicked[i])
{
bool is_repeated_click = false;
if ((float)(g.Time - io.MouseClickedTime[i]) < io.MouseDoubleClickTime)
{
ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f);
if (ImLengthSqr(delta_from_click_pos) < io.MouseDoubleClickMaxDist * io.MouseDoubleClickMaxDist)
is_repeated_click = true;
}
if (is_repeated_click)
io.MouseClickedLastCount[i]++;
else
io.MouseClickedLastCount[i] = 1;
io.MouseClickedTime[i] = g.Time;
io.MouseClickedPos[i] = io.MousePos;
io.MouseClickedCount[i] = io.MouseClickedLastCount[i];
io.MouseDragMaxDistanceSqr[i] = 0.0f;
}
else if (io.MouseDown[i])
{
// Maintain the maximum distance we reaching from the initial click position, which is used with dragging threshold
float delta_sqr_click_pos = IsMousePosValid(&io.MousePos) ? ImLengthSqr(io.MousePos - io.MouseClickedPos[i]) : 0.0f;
io.MouseDragMaxDistanceSqr[i] = ImMax(io.MouseDragMaxDistanceSqr[i], delta_sqr_click_pos);
}
// We provide io.MouseDoubleClicked[] as a legacy service
io.MouseDoubleClicked[i] = (io.MouseClickedCount[i] == 2);
// Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation
if (io.MouseClicked[i])
g.NavDisableMouseHover = false;
}
}
static void LockWheelingWindow(ImGuiWindow* window, float wheel_amount)
{
ImGuiContext& g = *GImGui;
if (window)
g.WheelingWindowReleaseTimer = ImMin(g.WheelingWindowReleaseTimer + ImAbs(wheel_amount) * WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER, WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER);
else
g.WheelingWindowReleaseTimer = 0.0f;
if (g.WheelingWindow == window)
return;
IMGUI_DEBUG_LOG_IO("LockWheelingWindow() \"%s\"\n", window ? window->Name : "NULL");
g.WheelingWindow = window;
g.WheelingWindowRefMousePos = g.IO.MousePos;
if (window == NULL)
{
g.WheelingWindowStartFrame = -1;
g.WheelingAxisAvg = ImVec2(0.0f, 0.0f);
}
}
static ImGuiWindow* FindBestWheelingWindow(const ImVec2& wheel)
{
// For each axis, find window in the hierarchy that may want to use scrolling
ImGuiContext& g = *GImGui;
ImGuiWindow* windows[2] = { NULL, NULL };
for (int axis = 0; axis < 2; axis++)
if (wheel[axis] != 0.0f)
for (ImGuiWindow* window = windows[axis] = g.HoveredWindow; window->Flags & ImGuiWindowFlags_ChildWindow; window = windows[axis] = window->ParentWindow)
{
// Bubble up into parent window if:
// - a child window doesn't allow any scrolling.
// - a child window has the ImGuiWindowFlags_NoScrollWithMouse flag.
//// - a child window doesn't need scrolling because it is already at the edge for the direction we are going in (FIXME-WIP)
const bool has_scrolling = (window->ScrollMax[axis] != 0.0f);
const bool inputs_disabled = (window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs);
//const bool scrolling_past_limits = (wheel_v < 0.0f) ? (window->Scroll[axis] <= 0.0f) : (window->Scroll[axis] >= window->ScrollMax[axis]);
if (has_scrolling && !inputs_disabled) // && !scrolling_past_limits)
break; // select this window
}
if (windows[0] == NULL && windows[1] == NULL)
return NULL;
// If there's only one window or only one axis then there's no ambiguity
if (windows[0] == windows[1] || windows[0] == NULL || windows[1] == NULL)
return windows[1] ? windows[1] : windows[0];
// If candidate are different windows we need to decide which one to prioritize
// - First frame: only find a winner if one axis is zero.
// - Subsequent frames: only find a winner when one is more than the other.
if (g.WheelingWindowStartFrame == -1)
g.WheelingWindowStartFrame = g.FrameCount;
if ((g.WheelingWindowStartFrame == g.FrameCount && wheel.x != 0.0f && wheel.y != 0.0f) || (g.WheelingAxisAvg.x == g.WheelingAxisAvg.y))
{
g.WheelingWindowWheelRemainder = wheel;
return NULL;
}
return (g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? windows[0] : windows[1];
}
// Called by NewFrame()
void ImGui::UpdateMouseWheel()
{
// Reset the locked window if we move the mouse or after the timer elapses.
// FIXME: Ideally we could refactor to have one timer for "changing window w/ same axis" and a shorter timer for "changing window or axis w/ other axis" (#3795)
ImGuiContext& g = *GImGui;
if (g.WheelingWindow != NULL)
{
g.WheelingWindowReleaseTimer -= g.IO.DeltaTime;
if (IsMousePosValid() && ImLengthSqr(g.IO.MousePos - g.WheelingWindowRefMousePos) > g.IO.MouseDragThreshold * g.IO.MouseDragThreshold)
g.WheelingWindowReleaseTimer = 0.0f;
if (g.WheelingWindowReleaseTimer <= 0.0f)
LockWheelingWindow(NULL, 0.0f);
}
ImVec2 wheel;
wheel.x = TestKeyOwner(ImGuiKey_MouseWheelX, ImGuiKeyOwner_None) ? g.IO.MouseWheelH : 0.0f;
wheel.y = TestKeyOwner(ImGuiKey_MouseWheelY, ImGuiKeyOwner_None) ? g.IO.MouseWheel : 0.0f;
//IMGUI_DEBUG_LOG("MouseWheel X:%.3f Y:%.3f\n", wheel_x, wheel_y);
ImGuiWindow* mouse_window = g.WheelingWindow ? g.WheelingWindow : g.HoveredWindow;
if (!mouse_window || mouse_window->Collapsed)
return;
// Zoom / Scale window
// FIXME-OBSOLETE: This is an old feature, it still works but pretty much nobody is using it and may be best redesigned.
if (wheel.y != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling)
{
LockWheelingWindow(mouse_window, wheel.y);
ImGuiWindow* window = mouse_window;
const float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f);
const float scale = new_font_scale / window->FontWindowScale;
window->FontWindowScale = new_font_scale;
if (window == window->RootWindow)
{
const ImVec2 offset = window->Size * (1.0f - scale) * (g.IO.MousePos - window->Pos) / window->Size;
SetWindowPos(window, window->Pos + offset, 0);
window->Size = ImFloor(window->Size * scale);
window->SizeFull = ImFloor(window->SizeFull * scale);
}
return;
}
if (g.IO.KeyCtrl)
return;
// Mouse wheel scrolling
// As a standard behavior holding SHIFT while using Vertical Mouse Wheel triggers Horizontal scroll instead
// - We avoid doing it on OSX as it the OS input layer handles this already.
// - However this means when running on OSX over Emcripten, Shift+WheelY will incur two swappings (1 in OS, 1 here), cancelling the feature.
const bool swap_axis = g.IO.KeyShift && !g.IO.ConfigMacOSXBehaviors;
if (swap_axis)
{
wheel.x = wheel.y;
wheel.y = 0.0f;
}
// Maintain a rough average of moving magnitude on both axises
// FIXME: should by based on wall clock time rather than frame-counter
g.WheelingAxisAvg.x = ImExponentialMovingAverage(g.WheelingAxisAvg.x, ImAbs(wheel.x), 30);
g.WheelingAxisAvg.y = ImExponentialMovingAverage(g.WheelingAxisAvg.y, ImAbs(wheel.y), 30);
// In the rare situation where FindBestWheelingWindow() had to defer first frame of wheeling due to ambiguous main axis, reinject it now.
wheel += g.WheelingWindowWheelRemainder;
g.WheelingWindowWheelRemainder = ImVec2(0.0f, 0.0f);
if (wheel.x == 0.0f && wheel.y == 0.0f)
return;
// Mouse wheel scrolling: find target and apply
// - don't renew lock if axis doesn't apply on the window.
// - select a main axis when both axises are being moved.
if (ImGuiWindow* window = (g.WheelingWindow ? g.WheelingWindow : FindBestWheelingWindow(wheel)))
if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))
{
bool do_scroll[2] = { wheel.x != 0.0f && window->ScrollMax.x != 0.0f, wheel.y != 0.0f && window->ScrollMax.y != 0.0f };
if (do_scroll[ImGuiAxis_X] && do_scroll[ImGuiAxis_Y])
do_scroll[(g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? ImGuiAxis_Y : ImGuiAxis_X] = false;
if (do_scroll[ImGuiAxis_X])
{
LockWheelingWindow(window, wheel.x);
float max_step = window->InnerRect.GetWidth() * 0.67f;
float scroll_step = ImFloor(ImMin(2 * window->CalcFontSize(), max_step));
SetScrollX(window, window->Scroll.x - wheel.x * scroll_step);
}
if (do_scroll[ImGuiAxis_Y])
{
LockWheelingWindow(window, wheel.y);
float max_step = window->InnerRect.GetHeight() * 0.67f;
float scroll_step = ImFloor(ImMin(5 * window->CalcFontSize(), max_step));
SetScrollY(window, window->Scroll.y - wheel.y * scroll_step);
}
}
}
void ImGui::SetNextFrameWantCaptureKeyboard(bool want_capture_keyboard)
{
ImGuiContext& g = *GImGui;
g.WantCaptureKeyboardNextFrame = want_capture_keyboard ? 1 : 0;
}
void ImGui::SetNextFrameWantCaptureMouse(bool want_capture_mouse)
{
ImGuiContext& g = *GImGui;
g.WantCaptureMouseNextFrame = want_capture_mouse ? 1 : 0;
}
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
static const char* GetInputSourceName(ImGuiInputSource source)
{
const char* input_source_names[] = { "None", "Mouse", "Keyboard", "Gamepad", "Nav", "Clipboard" };
IM_ASSERT(IM_ARRAYSIZE(input_source_names) == ImGuiInputSource_COUNT && source >= 0 && source < ImGuiInputSource_COUNT);
return input_source_names[source];
}
static void DebugPrintInputEvent(const char* prefix, const ImGuiInputEvent* e)
{
ImGuiContext& g = *GImGui;
if (e->Type == ImGuiInputEventType_MousePos) { if (e->MousePos.PosX == -FLT_MAX && e->MousePos.PosY == -FLT_MAX) IMGUI_DEBUG_LOG_IO("%s: MousePos (-FLT_MAX, -FLT_MAX)\n", prefix); else IMGUI_DEBUG_LOG_IO("%s: MousePos (%.1f, %.1f)\n", prefix, e->MousePos.PosX, e->MousePos.PosY); return; }
if (e->Type == ImGuiInputEventType_MouseButton) { IMGUI_DEBUG_LOG_IO("%s: MouseButton %d %s\n", prefix, e->MouseButton.Button, e->MouseButton.Down ? "Down" : "Up"); return; }
if (e->Type == ImGuiInputEventType_MouseWheel) { IMGUI_DEBUG_LOG_IO("%s: MouseWheel (%.3f, %.3f)\n", prefix, e->MouseWheel.WheelX, e->MouseWheel.WheelY); return; }
if (e->Type == ImGuiInputEventType_Key) { IMGUI_DEBUG_LOG_IO("%s: Key \"%s\" %s\n", prefix, ImGui::GetKeyName(e->Key.Key), e->Key.Down ? "Down" : "Up"); return; }
if (e->Type == ImGuiInputEventType_Text) { IMGUI_DEBUG_LOG_IO("%s: Text: %c (U+%08X)\n", prefix, e->Text.Char, e->Text.Char); return; }
if (e->Type == ImGuiInputEventType_Focus) { IMGUI_DEBUG_LOG_IO("%s: AppFocused %d\n", prefix, e->AppFocused.Focused); return; }
}
#endif
// Process input queue
// We always call this with the value of 'bool g.IO.ConfigInputTrickleEventQueue'.
// - trickle_fast_inputs = false : process all events, turn into flattened input state (e.g. successive down/up/down/up will be lost)
// - trickle_fast_inputs = true : process as many events as possible (successive down/up/down/up will be trickled over several frames so nothing is lost) (new feature in 1.87)
void ImGui::UpdateInputEvents(bool trickle_fast_inputs)
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Only trickle chars<>key when working with InputText()
// FIXME: InputText() could parse event trail?
// FIXME: Could specialize chars<>keys trickling rules for control keys (those not typically associated to characters)
const bool trickle_interleaved_keys_and_text = (trickle_fast_inputs && g.WantTextInputNextFrame == 1);
bool mouse_moved = false, mouse_wheeled = false, key_changed = false, text_inputted = false;
int mouse_button_changed = 0x00;
ImBitArray<ImGuiKey_KeysData_SIZE> key_changed_mask;
int event_n = 0;
for (; event_n < g.InputEventsQueue.Size; event_n++)
{
ImGuiInputEvent* e = &g.InputEventsQueue[event_n];
if (e->Type == ImGuiInputEventType_MousePos)
{
// Trickling Rule: Stop processing queued events if we already handled a mouse button change
ImVec2 event_pos(e->MousePos.PosX, e->MousePos.PosY);
if (trickle_fast_inputs && (mouse_button_changed != 0 || mouse_wheeled || key_changed || text_inputted))
break;
io.MousePos = event_pos;
mouse_moved = true;
}
else if (e->Type == ImGuiInputEventType_MouseButton)
{
// Trickling Rule: Stop processing queued events if we got multiple action on the same button
const ImGuiMouseButton button = e->MouseButton.Button;
IM_ASSERT(button >= 0 && button < ImGuiMouseButton_COUNT);
if (trickle_fast_inputs && ((mouse_button_changed & (1 << button)) || mouse_wheeled))
break;
io.MouseDown[button] = e->MouseButton.Down;
mouse_button_changed |= (1 << button);
}
else if (e->Type == ImGuiInputEventType_MouseWheel)
{
// Trickling Rule: Stop processing queued events if we got multiple action on the event
if (trickle_fast_inputs && (mouse_moved || mouse_button_changed != 0))
break;
io.MouseWheelH += e->MouseWheel.WheelX;
io.MouseWheel += e->MouseWheel.WheelY;
mouse_wheeled = true;
}
else if (e->Type == ImGuiInputEventType_Key)
{
// Trickling Rule: Stop processing queued events if we got multiple action on the same button
ImGuiKey key = e->Key.Key;
IM_ASSERT(key != ImGuiKey_None);
ImGuiKeyData* key_data = GetKeyData(key);
const int key_data_index = (int)(key_data - g.IO.KeysData);
if (trickle_fast_inputs && key_data->Down != e->Key.Down && (key_changed_mask.TestBit(key_data_index) || text_inputted || mouse_button_changed != 0))
break;
key_data->Down = e->Key.Down;
key_data->AnalogValue = e->Key.AnalogValue;
key_changed = true;
key_changed_mask.SetBit(key_data_index);
// Allow legacy code using io.KeysDown[GetKeyIndex()] with new backends
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
io.KeysDown[key_data_index] = key_data->Down;
if (io.KeyMap[key_data_index] != -1)
io.KeysDown[io.KeyMap[key_data_index]] = key_data->Down;
#endif
}
else if (e->Type == ImGuiInputEventType_Text)
{
// Trickling Rule: Stop processing queued events if keys/mouse have been interacted with
if (trickle_fast_inputs && ((key_changed && trickle_interleaved_keys_and_text) || mouse_button_changed != 0 || mouse_moved || mouse_wheeled))
break;
unsigned int c = e->Text.Char;
io.InputQueueCharacters.push_back(c <= IM_UNICODE_CODEPOINT_MAX ? (ImWchar)c : IM_UNICODE_CODEPOINT_INVALID);
if (trickle_interleaved_keys_and_text)
text_inputted = true;
}
else if (e->Type == ImGuiInputEventType_Focus)
{
// We intentionally overwrite this and process in NewFrame(), in order to give a chance
// to multi-viewports backends to queue AddFocusEvent(false) + AddFocusEvent(true) in same frame.
const bool focus_lost = !e->AppFocused.Focused;
io.AppFocusLost = focus_lost;
}
else
{
IM_ASSERT(0 && "Unknown event!");
}
}
// Record trail (for domain-specific applications wanting to access a precise trail)
//if (event_n != 0) IMGUI_DEBUG_LOG_IO("Processed: %d / Remaining: %d\n", event_n, g.InputEventsQueue.Size - event_n);
for (int n = 0; n < event_n; n++)
g.InputEventsTrail.push_back(g.InputEventsQueue[n]);
// [DEBUG]
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
if (event_n != 0 && (g.DebugLogFlags & ImGuiDebugLogFlags_EventIO))
for (int n = 0; n < g.InputEventsQueue.Size; n++)
DebugPrintInputEvent(n < event_n ? "Processed" : "Remaining", &g.InputEventsQueue[n]);
#endif
// Remaining events will be processed on the next frame
if (event_n == g.InputEventsQueue.Size)
g.InputEventsQueue.resize(0);
else
g.InputEventsQueue.erase(g.InputEventsQueue.Data, g.InputEventsQueue.Data + event_n);
// Clear buttons state when focus is lost
// - this is useful so e.g. releasing Alt after focus loss on Alt-Tab doesn't trigger the Alt menu toggle.
// - we clear in EndFrame() and not now in order allow application/user code polling this flag
// (e.g. custom backend may want to clear additional data, custom widgets may want to react with a "canceling" event).
if (g.IO.AppFocusLost)
g.IO.ClearInputKeys();
}
ImGuiID ImGui::GetKeyOwner(ImGuiKey key)
{
if (!IsNamedKeyOrModKey(key))
return ImGuiKeyOwner_None;
ImGuiContext& g = *GImGui;
ImGuiKeyOwnerData* owner_data = GetKeyOwnerData(key);
ImGuiID owner_id = owner_data->OwnerCurr;
if (g.ActiveIdUsingAllKeyboardKeys && owner_id != g.ActiveId && owner_id != ImGuiKeyOwner_Any)
if (key >= ImGuiKey_Keyboard_BEGIN && key < ImGuiKey_Keyboard_END)
return ImGuiKeyOwner_None;
return owner_id;
}
// TestKeyOwner(..., ID) : (owner == None || owner == ID)
// TestKeyOwner(..., None) : (owner == None)
// TestKeyOwner(..., Any) : no owner test
// All paths are also testing for key not being locked, for the rare cases that key have been locked with using ImGuiInputFlags_LockXXX flags.
bool ImGui::TestKeyOwner(ImGuiKey key, ImGuiID owner_id)
{
if (!IsNamedKeyOrModKey(key))
return true;
ImGuiContext& g = *GImGui;
if (g.ActiveIdUsingAllKeyboardKeys && owner_id != g.ActiveId && owner_id != ImGuiKeyOwner_Any)
if (key >= ImGuiKey_Keyboard_BEGIN && key < ImGuiKey_Keyboard_END)
return false;
ImGuiKeyOwnerData* owner_data = GetKeyOwnerData(key);
if (owner_id == ImGuiKeyOwner_Any)
return (owner_data->LockThisFrame == false);
// Note: SetKeyOwner() sets OwnerCurr. It is not strictly required for most mouse routing overlap (because of ActiveId/HoveredId
// are acting as filter before this has a chance to filter), but sane as soon as user tries to look into things.
// Setting OwnerCurr in SetKeyOwner() is more consistent than testing OwnerNext here: would be inconsistent with getter and other functions.
if (owner_data->OwnerCurr != owner_id)
{
if (owner_data->LockThisFrame)
return false;
if (owner_data->OwnerCurr != ImGuiKeyOwner_None)
return false;
}
return true;
}
// _LockXXX flags are useful to lock keys away from code which is not input-owner aware.
// When using _LockXXX flags, you can use ImGuiKeyOwner_Any to lock keys from everyone.
// - SetKeyOwner(..., None) : clears owner
// - SetKeyOwner(..., Any, !Lock) : illegal (assert)
// - SetKeyOwner(..., Any or None, Lock) : set lock
void ImGui::SetKeyOwner(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags)
{
IM_ASSERT(IsNamedKeyOrModKey(key) && (owner_id != ImGuiKeyOwner_Any || (flags & (ImGuiInputFlags_LockThisFrame | ImGuiInputFlags_LockUntilRelease)))); // Can only use _Any with _LockXXX flags (to eat a key away without an ID to retrieve it)
IM_ASSERT((flags & ~ImGuiInputFlags_SupportedBySetKeyOwner) == 0); // Passing flags not supported by this function!
ImGuiKeyOwnerData* owner_data = GetKeyOwnerData(key);
owner_data->OwnerCurr = owner_data->OwnerNext = owner_id;
// We cannot lock by default as it would likely break lots of legacy code.
// In the case of using LockUntilRelease while key is not down we still lock during the frame (no key_data->Down test)
owner_data->LockUntilRelease = (flags & ImGuiInputFlags_LockUntilRelease) != 0;
owner_data->LockThisFrame = (flags & ImGuiInputFlags_LockThisFrame) != 0 || (owner_data->LockUntilRelease);
}
// This is more or less equivalent to:
// if (IsItemHovered() || IsItemActive())
// SetKeyOwner(key, GetItemID());
// Extensive uses of that (e.g. many calls for a single item) may want to manually perform the tests once and then call SetKeyOwner() multiple times.
// More advanced usage scenarios may want to call SetKeyOwner() manually based on different condition.
// Worth noting is that only one item can be hovered and only one item can be active, therefore this usage pattern doesn't need to bother with routing and priority.
void ImGui::SetItemKeyOwner(ImGuiKey key, ImGuiInputFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiID id = g.LastItemData.ID;
if (id == 0 || (g.HoveredId != id && g.ActiveId != id))
return;
if ((flags & ImGuiInputFlags_CondMask_) == 0)
flags |= ImGuiInputFlags_CondDefault_;
if ((g.HoveredId == id && (flags & ImGuiInputFlags_CondHovered)) || (g.ActiveId == id && (flags & ImGuiInputFlags_CondActive)))
{
IM_ASSERT((flags & ~ImGuiInputFlags_SupportedBySetItemKeyOwner) == 0); // Passing flags not supported by this function!
SetKeyOwner(key, id, flags & ~ImGuiInputFlags_CondMask_);
}
}
bool ImGui::Shortcut(ImGuiKeyChord key_chord, ImGuiID owner_id, ImGuiInputFlags flags)
{
ImGuiContext& g = *GImGui;
// When using (owner_id == 0/Any): SetShortcutRouting() will use CurrentFocusScopeId and filter with this, so IsKeyPressed() is fine with he 0/Any.
if ((flags & ImGuiInputFlags_RouteMask_) == 0)
flags |= ImGuiInputFlags_RouteFocused;
if (!SetShortcutRouting(key_chord, owner_id, flags))
return false;
if (key_chord & ImGuiMod_Shortcut)
key_chord = ConvertShortcutMod(key_chord);
ImGuiKey mods = (ImGuiKey)(key_chord & ImGuiMod_Mask_);
if (g.IO.KeyMods != mods)
return false;
// Special storage location for mods
ImGuiKey key = (ImGuiKey)(key_chord & ~ImGuiMod_Mask_);
if (key == ImGuiKey_None)
key = ConvertSingleModFlagToKey(mods);
if (!IsKeyPressed(key, owner_id, (flags & (ImGuiInputFlags_Repeat | (ImGuiInputFlags)ImGuiInputFlags_RepeatRateMask_))))
return false;
IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByShortcut) == 0); // Passing flags not supported by this function!
return true;
}
//-----------------------------------------------------------------------------
// [SECTION] ERROR CHECKING
//-----------------------------------------------------------------------------
// Helper function to verify ABI compatibility between caller code and compiled version of Dear ImGui.
// Verify that the type sizes are matching between the calling file's compilation unit and imgui.cpp's compilation unit
// If this triggers you have an issue:
// - Most commonly: mismatched headers and compiled code version.
// - Or: mismatched configuration #define, compilation settings, packing pragma etc.
// The configuration settings mentioned in imconfig.h must be set for all compilation units involved with Dear ImGui,
// which is way it is required you put them in your imconfig file (and not just before including imgui.h).
// Otherwise it is possible that different compilation units would see different structure layout
bool ImGui::DebugCheckVersionAndDataLayout(const char* version, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_vert, size_t sz_idx)
{
bool error = false;
if (strcmp(version, IMGUI_VERSION) != 0) { error = true; IM_ASSERT(strcmp(version, IMGUI_VERSION) == 0 && "Mismatched version string!"); }
if (sz_io != sizeof(ImGuiIO)) { error = true; IM_ASSERT(sz_io == sizeof(ImGuiIO) && "Mismatched struct layout!"); }
if (sz_style != sizeof(ImGuiStyle)) { error = true; IM_ASSERT(sz_style == sizeof(ImGuiStyle) && "Mismatched struct layout!"); }
if (sz_vec2 != sizeof(ImVec2)) { error = true; IM_ASSERT(sz_vec2 == sizeof(ImVec2) && "Mismatched struct layout!"); }
if (sz_vec4 != sizeof(ImVec4)) { error = true; IM_ASSERT(sz_vec4 == sizeof(ImVec4) && "Mismatched struct layout!"); }
if (sz_vert != sizeof(ImDrawVert)) { error = true; IM_ASSERT(sz_vert == sizeof(ImDrawVert) && "Mismatched struct layout!"); }
if (sz_idx != sizeof(ImDrawIdx)) { error = true; IM_ASSERT(sz_idx == sizeof(ImDrawIdx) && "Mismatched struct layout!"); }
return !error;
}
// Until 1.89 (IMGUI_VERSION_NUM < 18814) it was legal to use SetCursorPos() to extend the boundary of a parent (e.g. window or table cell)
// This is causing issues and ambiguity and we need to retire that.
// See https://github.com/ocornut/imgui/issues/5548 for more details.
// [Scenario 1]
// Previously this would make the window content size ~200x200:
// Begin(...) + SetCursorScreenPos(GetCursorScreenPos() + ImVec2(200,200)) + End(); // NOT OK
// Instead, please submit an item:
// Begin(...) + SetCursorScreenPos(GetCursorScreenPos() + ImVec2(200,200)) + Dummy(ImVec2(0,0)) + End(); // OK
// Alternative:
// Begin(...) + Dummy(ImVec2(200,200)) + End(); // OK
// [Scenario 2]
// For reference this is one of the issue what we aim to fix with this change:
// BeginGroup() + SomeItem("foobar") + SetCursorScreenPos(GetCursorScreenPos()) + EndGroup()
// The previous logic made SetCursorScreenPos(GetCursorScreenPos()) have a side-effect! It would erroneously incorporate ItemSpacing.y after the item into content size, making the group taller!
// While this code is a little twisted, no-one would expect SetXXX(GetXXX()) to have a side-effect. Using vertical alignment patterns could trigger this issue.
void ImGui::ErrorCheckUsingSetCursorPosToExtendParentBoundaries()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(window->DC.IsSetPos);
window->DC.IsSetPos = false;
#ifdef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
if (window->DC.CursorPos.x <= window->DC.CursorMaxPos.x && window->DC.CursorPos.y <= window->DC.CursorMaxPos.y)
return;
if (window->SkipItems)
return;
IM_ASSERT(0 && "Code uses SetCursorPos()/SetCursorScreenPos() to extend window/parent boundaries. Please submit an item e.g. Dummy() to validate extent.");
#else
window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, window->DC.CursorPos);
#endif
}
static void ImGui::ErrorCheckNewFrameSanityChecks()
{
ImGuiContext& g = *GImGui;
// Check user IM_ASSERT macro
// (IF YOU GET A WARNING OR COMPILE ERROR HERE: it means your assert macro is incorrectly defined!
// If your macro uses multiple statements, it NEEDS to be surrounded by a 'do { ... } while (0)' block.
// This is a common C/C++ idiom to allow multiple statements macros to be used in control flow blocks.)
// #define IM_ASSERT(EXPR) if (SomeCode(EXPR)) SomeMoreCode(); // Wrong!
// #define IM_ASSERT(EXPR) do { if (SomeCode(EXPR)) SomeMoreCode(); } while (0) // Correct!
if (true) IM_ASSERT(1); else IM_ASSERT(0);
// Emscripten backends are often imprecise in their submission of DeltaTime. (#6114, #3644)
// Ideally the Emscripten app/backend should aim to fix or smooth this value and avoid feeding zero, but we tolerate it.
#ifdef __EMSCRIPTEN__
if (g.IO.DeltaTime <= 0.0f && g.FrameCount > 0)
g.IO.DeltaTime = 0.00001f;
#endif
// Check user data
// (We pass an error message in the assert expression to make it visible to programmers who are not using a debugger, as most assert handlers display their argument)
IM_ASSERT(g.Initialized);
IM_ASSERT((g.IO.DeltaTime > 0.0f || g.FrameCount == 0) && "Need a positive DeltaTime!");
IM_ASSERT((g.FrameCount == 0 || g.FrameCountEnded == g.FrameCount) && "Forgot to call Render() or EndFrame() at the end of the previous frame?");
IM_ASSERT(g.IO.DisplaySize.x >= 0.0f && g.IO.DisplaySize.y >= 0.0f && "Invalid DisplaySize value!");
IM_ASSERT(g.IO.Fonts->IsBuilt() && "Font Atlas not built! Make sure you called ImGui_ImplXXXX_NewFrame() function for renderer backend, which should call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8()");
IM_ASSERT(g.Style.CurveTessellationTol > 0.0f && "Invalid style setting!");
IM_ASSERT(g.Style.CircleTessellationMaxError > 0.0f && "Invalid style setting!");
IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f && "Invalid style setting!"); // Allows us to avoid a few clamps in color computations
IM_ASSERT(g.Style.WindowMinSize.x >= 1.0f && g.Style.WindowMinSize.y >= 1.0f && "Invalid style setting.");
IM_ASSERT(g.Style.WindowMenuButtonPosition == ImGuiDir_None || g.Style.WindowMenuButtonPosition == ImGuiDir_Left || g.Style.WindowMenuButtonPosition == ImGuiDir_Right);
IM_ASSERT(g.Style.ColorButtonPosition == ImGuiDir_Left || g.Style.ColorButtonPosition == ImGuiDir_Right);
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_COUNT; n++)
IM_ASSERT(g.IO.KeyMap[n] >= -1 && g.IO.KeyMap[n] < ImGuiKey_LegacyNativeKey_END && "io.KeyMap[] contains an out of bound value (need to be 0..511, or -1 for unmapped key)");
// Check: required key mapping (we intentionally do NOT check all keys to not pressure user into setting up everything, but Space is required and was only added in 1.60 WIP)
if ((g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) && g.IO.BackendUsingLegacyKeyArrays == 1)
IM_ASSERT(g.IO.KeyMap[ImGuiKey_Space] != -1 && "ImGuiKey_Space is not mapped, required for keyboard navigation.");
#endif
// Check: the io.ConfigWindowsResizeFromEdges option requires backend to honor mouse cursor changes and set the ImGuiBackendFlags_HasMouseCursors flag accordingly.
if (g.IO.ConfigWindowsResizeFromEdges && !(g.IO.BackendFlags & ImGuiBackendFlags_HasMouseCursors))
g.IO.ConfigWindowsResizeFromEdges = false;
}
static void ImGui::ErrorCheckEndFrameSanityChecks()
{
ImGuiContext& g = *GImGui;
// Verify that io.KeyXXX fields haven't been tampered with. Key mods should not be modified between NewFrame() and EndFrame()
// One possible reason leading to this assert is that your backends update inputs _AFTER_ NewFrame().
// It is known that when some modal native windows called mid-frame takes focus away, some backends such as GLFW will
// send key release events mid-frame. This would normally trigger this assertion and lead to sheared inputs.
// We silently accommodate for this case by ignoring the case where all io.KeyXXX modifiers were released (aka key_mod_flags == 0),
// while still correctly asserting on mid-frame key press events.
const ImGuiKeyChord key_mods = GetMergedModsFromKeys();
IM_ASSERT((key_mods == 0 || g.IO.KeyMods == key_mods) && "Mismatching io.KeyCtrl/io.KeyShift/io.KeyAlt/io.KeySuper vs io.KeyMods");
IM_UNUSED(key_mods);
// [EXPERIMENTAL] Recover from errors: You may call this yourself before EndFrame().
//ErrorCheckEndFrameRecover();
// Report when there is a mismatch of Begin/BeginChild vs End/EndChild calls. Important: Remember that the Begin/BeginChild API requires you
// to always call End/EndChild even if Begin/BeginChild returns false! (this is unfortunately inconsistent with most other Begin* API).
if (g.CurrentWindowStack.Size != 1)
{
if (g.CurrentWindowStack.Size > 1)
{
ImGuiWindow* window = g.CurrentWindowStack.back().Window; // <-- This window was not Ended!
IM_ASSERT_USER_ERROR(g.CurrentWindowStack.Size == 1, "Mismatched Begin/BeginChild vs End/EndChild calls: did you forget to call End/EndChild?");
IM_UNUSED(window);
while (g.CurrentWindowStack.Size > 1)
End();
}
else
{
IM_ASSERT_USER_ERROR(g.CurrentWindowStack.Size == 1, "Mismatched Begin/BeginChild vs End/EndChild calls: did you call End/EndChild too much?");
}
}
IM_ASSERT_USER_ERROR(g.GroupStack.Size == 0, "Missing EndGroup call!");
}
// Experimental recovery from incorrect usage of BeginXXX/EndXXX/PushXXX/PopXXX calls.
// Must be called during or before EndFrame().
// This is generally flawed as we are not necessarily End/Popping things in the right order.
// FIXME: Can't recover from inside BeginTabItem/EndTabItem yet.
// FIXME: Can't recover from interleaved BeginTabBar/Begin
void ImGui::ErrorCheckEndFrameRecover(ImGuiErrorLogCallback log_callback, void* user_data)
{
// PVS-Studio V1044 is "Loop break conditions do not depend on the number of iterations"
ImGuiContext& g = *GImGui;
while (g.CurrentWindowStack.Size > 0) //-V1044
{
ErrorCheckEndWindowRecover(log_callback, user_data);
ImGuiWindow* window = g.CurrentWindow;
if (g.CurrentWindowStack.Size == 1)
{
IM_ASSERT(window->IsFallbackWindow);
break;
}
if (window->Flags & ImGuiWindowFlags_ChildWindow)
{
if (log_callback) log_callback(user_data, "Recovered from missing EndChild() for '%s'", window->Name);
EndChild();
}
else
{
if (log_callback) log_callback(user_data, "Recovered from missing End() for '%s'", window->Name);
End();
}
}
}
// Must be called before End()/EndChild()
void ImGui::ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, void* user_data)
{
ImGuiContext& g = *GImGui;
while (g.CurrentTable && (g.CurrentTable->OuterWindow == g.CurrentWindow || g.CurrentTable->InnerWindow == g.CurrentWindow))
{
if (log_callback) log_callback(user_data, "Recovered from missing EndTable() in '%s'", g.CurrentTable->OuterWindow->Name);
EndTable();
}
ImGuiWindow* window = g.CurrentWindow;
ImGuiStackSizes* stack_sizes = &g.CurrentWindowStack.back().StackSizesOnBegin;
IM_ASSERT(window != NULL);
while (g.CurrentTabBar != NULL) //-V1044
{
if (log_callback) log_callback(user_data, "Recovered from missing EndTabBar() in '%s'", window->Name);
EndTabBar();
}
while (window->DC.TreeDepth > 0)
{
if (log_callback) log_callback(user_data, "Recovered from missing TreePop() in '%s'", window->Name);
TreePop();
}
while (g.GroupStack.Size > stack_sizes->SizeOfGroupStack) //-V1044
{
if (log_callback) log_callback(user_data, "Recovered from missing EndGroup() in '%s'", window->Name);
EndGroup();
}
while (window->IDStack.Size > 1)
{
if (log_callback) log_callback(user_data, "Recovered from missing PopID() in '%s'", window->Name);
PopID();
}
while (g.DisabledStackSize > stack_sizes->SizeOfDisabledStack) //-V1044
{
if (log_callback) log_callback(user_data, "Recovered from missing EndDisabled() in '%s'", window->Name);
EndDisabled();
}
while (g.ColorStack.Size > stack_sizes->SizeOfColorStack)
{
if (log_callback) log_callback(user_data, "Recovered from missing PopStyleColor() in '%s' for ImGuiCol_%s", window->Name, GetStyleColorName(g.ColorStack.back().Col));
PopStyleColor();
}
while (g.ItemFlagsStack.Size > stack_sizes->SizeOfItemFlagsStack) //-V1044
{
if (log_callback) log_callback(user_data, "Recovered from missing PopItemFlag() in '%s'", window->Name);
PopItemFlag();
}
while (g.StyleVarStack.Size > stack_sizes->SizeOfStyleVarStack) //-V1044
{
if (log_callback) log_callback(user_data, "Recovered from missing PopStyleVar() in '%s'", window->Name);
PopStyleVar();
}
while (g.FocusScopeStack.Size > stack_sizes->SizeOfFocusScopeStack + 1) //-V1044
{
if (log_callback) log_callback(user_data, "Recovered from missing PopFocusScope() in '%s'", window->Name);
PopFocusScope();
}
}
// Save current stack sizes for later compare
void ImGuiStackSizes::SetToContextState(ImGuiContext* ctx)
{
ImGuiContext& g = *ctx;
ImGuiWindow* window = g.CurrentWindow;
SizeOfIDStack = (short)window->IDStack.Size;
SizeOfColorStack = (short)g.ColorStack.Size;
SizeOfStyleVarStack = (short)g.StyleVarStack.Size;
SizeOfFontStack = (short)g.FontStack.Size;
SizeOfFocusScopeStack = (short)g.FocusScopeStack.Size;
SizeOfGroupStack = (short)g.GroupStack.Size;
SizeOfItemFlagsStack = (short)g.ItemFlagsStack.Size;
SizeOfBeginPopupStack = (short)g.BeginPopupStack.Size;
SizeOfDisabledStack = (short)g.DisabledStackSize;
}
// Compare to detect usage errors
void ImGuiStackSizes::CompareWithContextState(ImGuiContext* ctx)
{
ImGuiContext& g = *ctx;
ImGuiWindow* window = g.CurrentWindow;
IM_UNUSED(window);
// Window stacks
// NOT checking: DC.ItemWidth, DC.TextWrapPos (per window) to allow user to conveniently push once and not pop (they are cleared on Begin)
IM_ASSERT(SizeOfIDStack == window->IDStack.Size && "PushID/PopID or TreeNode/TreePop Mismatch!");
// Global stacks
// For color, style and font stacks there is an incentive to use Push/Begin/Pop/.../End patterns, so we relax our checks a little to allow them.
IM_ASSERT(SizeOfGroupStack == g.GroupStack.Size && "BeginGroup/EndGroup Mismatch!");
IM_ASSERT(SizeOfBeginPopupStack == g.BeginPopupStack.Size && "BeginPopup/EndPopup or BeginMenu/EndMenu Mismatch!");
IM_ASSERT(SizeOfDisabledStack == g.DisabledStackSize && "BeginDisabled/EndDisabled Mismatch!");
IM_ASSERT(SizeOfItemFlagsStack >= g.ItemFlagsStack.Size && "PushItemFlag/PopItemFlag Mismatch!");
IM_ASSERT(SizeOfColorStack >= g.ColorStack.Size && "PushStyleColor/PopStyleColor Mismatch!");
IM_ASSERT(SizeOfStyleVarStack >= g.StyleVarStack.Size && "PushStyleVar/PopStyleVar Mismatch!");
IM_ASSERT(SizeOfFontStack >= g.FontStack.Size && "PushFont/PopFont Mismatch!");
IM_ASSERT(SizeOfFocusScopeStack == g.FocusScopeStack.Size && "PushFocusScope/PopFocusScope Mismatch!");
}
//-----------------------------------------------------------------------------
// [SECTION] LAYOUT
//-----------------------------------------------------------------------------
// - ItemSize()
// - ItemAdd()
// - SameLine()
// - GetCursorScreenPos()
// - SetCursorScreenPos()
// - GetCursorPos(), GetCursorPosX(), GetCursorPosY()
// - SetCursorPos(), SetCursorPosX(), SetCursorPosY()
// - GetCursorStartPos()
// - Indent()
// - Unindent()
// - SetNextItemWidth()
// - PushItemWidth()
// - PushMultiItemsWidths()
// - PopItemWidth()
// - CalcItemWidth()
// - CalcItemSize()
// - GetTextLineHeight()
// - GetTextLineHeightWithSpacing()
// - GetFrameHeight()
// - GetFrameHeightWithSpacing()
// - GetContentRegionMax()
// - GetContentRegionMaxAbs() [Internal]
// - GetContentRegionAvail(),
// - GetWindowContentRegionMin(), GetWindowContentRegionMax()
// - BeginGroup()
// - EndGroup()
// Also see in imgui_widgets: tab bars, and in imgui_tables: tables, columns.
//-----------------------------------------------------------------------------
// Advance cursor given item size for layout.
// Register minimum needed size so it can extend the bounding box used for auto-fit calculation.
// See comments in ItemAdd() about how/why the size provided to ItemSize() vs ItemAdd() may often different.
void ImGui::ItemSize(const ImVec2& size, float text_baseline_y)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
// We increase the height in this function to accommodate for baseline offset.
// In theory we should be offsetting the starting position (window->DC.CursorPos), that will be the topic of a larger refactor,
// but since ItemSize() is not yet an API that moves the cursor (to handle e.g. wrapping) enlarging the height has the same effect.
const float offset_to_match_baseline_y = (text_baseline_y >= 0) ? ImMax(0.0f, window->DC.CurrLineTextBaseOffset - text_baseline_y) : 0.0f;
const float line_y1 = window->DC.IsSameLine ? window->DC.CursorPosPrevLine.y : window->DC.CursorPos.y;
const float line_height = ImMax(window->DC.CurrLineSize.y, /*ImMax(*/window->DC.CursorPos.y - line_y1/*, 0.0f)*/ + size.y + offset_to_match_baseline_y);
// Always align ourselves on pixel boundaries
//if (g.IO.KeyAlt) window->DrawList->AddRect(window->DC.CursorPos, window->DC.CursorPos + ImVec2(size.x, line_height), IM_COL32(255,0,0,200)); // [DEBUG]
window->DC.CursorPosPrevLine.x = window->DC.CursorPos.x + size.x;
window->DC.CursorPosPrevLine.y = line_y1;
window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x); // Next line
window->DC.CursorPos.y = IM_FLOOR(line_y1 + line_height + g.Style.ItemSpacing.y); // Next line
window->DC.CursorMaxPos.x = ImMax(window->DC.CursorMaxPos.x, window->DC.CursorPosPrevLine.x);
window->DC.CursorMaxPos.y = ImMax(window->DC.CursorMaxPos.y, window->DC.CursorPos.y - g.Style.ItemSpacing.y);
//if (g.IO.KeyAlt) window->DrawList->AddCircle(window->DC.CursorMaxPos, 3.0f, IM_COL32(255,0,0,255), 4); // [DEBUG]
window->DC.PrevLineSize.y = line_height;
window->DC.CurrLineSize.y = 0.0f;
window->DC.PrevLineTextBaseOffset = ImMax(window->DC.CurrLineTextBaseOffset, text_baseline_y);
window->DC.CurrLineTextBaseOffset = 0.0f;
window->DC.IsSameLine = window->DC.IsSetPos = false;
// Horizontal layout mode
if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
SameLine();
}
// Declare item bounding box for clipping and interaction.
// Note that the size can be different than the one provided to ItemSize(). Typically, widgets that spread over available surface
// declare their minimum size requirement to ItemSize() and provide a larger region to ItemAdd() which is used drawing/interaction.
bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGuiItemFlags extra_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// Set item data
// (DisplayRect is left untouched, made valid when ImGuiItemStatusFlags_HasDisplayRect is set)
g.LastItemData.ID = id;
g.LastItemData.Rect = bb;
g.LastItemData.NavRect = nav_bb_arg ? *nav_bb_arg : bb;
g.LastItemData.InFlags = g.CurrentItemFlags | extra_flags;
g.LastItemData.StatusFlags = ImGuiItemStatusFlags_None;
// Directional navigation processing
if (id != 0)
{
KeepAliveID(id);
// Runs prior to clipping early-out
// (a) So that NavInitRequest can be honored, for newly opened windows to select a default widget
// (b) So that we can scroll up/down past clipped items. This adds a small O(N) cost to regular navigation requests
// unfortunately, but it is still limited to one window. It may not scale very well for windows with ten of
// thousands of item, but at least NavMoveRequest is only set on user interaction, aka maximum once a frame.
// We could early out with "if (is_clipped && !g.NavInitRequest) return false;" but when we wouldn't be able
// to reach unclipped widgets. This would work if user had explicit scrolling control (e.g. mapped on a stick).
// We intentionally don't check if g.NavWindow != NULL because g.NavAnyRequest should only be set when it is non null.
// If we crash on a NULL g.NavWindow we need to fix the bug elsewhere.
if (!(g.LastItemData.InFlags & ImGuiItemFlags_NoNav))
{
window->DC.NavLayersActiveMaskNext |= (1 << window->DC.NavLayerCurrent);
if (g.NavId == id || g.NavAnyRequest)
if (g.NavWindow->RootWindowForNav == window->RootWindowForNav)
if (window == g.NavWindow || ((window->Flags | g.NavWindow->Flags) & ImGuiWindowFlags_NavFlattened))
NavProcessItem();
}
// [DEBUG] People keep stumbling on this problem and using "" as identifier in the root of a window instead of "##something".
// Empty identifier are valid and useful in a small amount of cases, but 99.9% of the time you want to use "##something".
// READ THE FAQ: https://dearimgui.org/faq
IM_ASSERT(id != window->ID && "Cannot have an empty ID at the root of a window. If you need an empty label, use ## and read the FAQ about how the ID Stack works!");
}
g.NextItemData.Flags = ImGuiNextItemDataFlags_None;
#ifdef IMGUI_ENABLE_TEST_ENGINE
if (id != 0)
IMGUI_TEST_ENGINE_ITEM_ADD(id, g.LastItemData.NavRect, &g.LastItemData);
#endif
// Clipping test
// (FIXME: This is a modified copy of IsClippedEx() so we can reuse the is_rect_visible value)
//const bool is_clipped = IsClippedEx(bb, id);
//if (is_clipped)
// return false;
const bool is_rect_visible = bb.Overlaps(window->ClipRect);
if (!is_rect_visible)
if (id == 0 || (id != g.ActiveId && id != g.NavId))
if (!g.LogEnabled)
return false;
// [DEBUG]
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
if (id != 0 && id == g.DebugLocateId)
DebugLocateItemResolveWithLastItem();
#endif
//if (g.IO.KeyAlt) window->DrawList->AddRect(bb.Min, bb.Max, IM_COL32(255,255,0,120)); // [DEBUG]
// We need to calculate this now to take account of the current clipping rectangle (as items like Selectable may change them)
if (is_rect_visible)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Visible;
if (IsMouseHoveringRect(bb.Min, bb.Max))
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredRect;
return true;
}
// Gets back to previous line and continue with horizontal layout
// offset_from_start_x == 0 : follow right after previous item
// offset_from_start_x != 0 : align to specified x position (relative to window/group left)
// spacing_w < 0 : use default spacing if pos_x == 0, no spacing if pos_x != 0
// spacing_w >= 0 : enforce spacing amount
void ImGui::SameLine(float offset_from_start_x, float spacing_w)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
if (offset_from_start_x != 0.0f)
{
if (spacing_w < 0.0f)
spacing_w = 0.0f;
window->DC.CursorPos.x = window->Pos.x - window->Scroll.x + offset_from_start_x + spacing_w + window->DC.GroupOffset.x + window->DC.ColumnsOffset.x;
window->DC.CursorPos.y = window->DC.CursorPosPrevLine.y;
}
else
{
if (spacing_w < 0.0f)
spacing_w = g.Style.ItemSpacing.x;
window->DC.CursorPos.x = window->DC.CursorPosPrevLine.x + spacing_w;
window->DC.CursorPos.y = window->DC.CursorPosPrevLine.y;
}
window->DC.CurrLineSize = window->DC.PrevLineSize;
window->DC.CurrLineTextBaseOffset = window->DC.PrevLineTextBaseOffset;
window->DC.IsSameLine = true;
}
ImVec2 ImGui::GetCursorScreenPos()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CursorPos;
}
// 2022/08/05: Setting cursor position also extend boundaries (via modifying CursorMaxPos) used to compute window size, group size etc.
// I believe this was is a judicious choice but it's probably being relied upon (it has been the case since 1.31 and 1.50)
// It would be sane if we requested user to use SetCursorPos() + Dummy(ImVec2(0,0)) to extend CursorMaxPos...
void ImGui::SetCursorScreenPos(const ImVec2& pos)
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.CursorPos = pos;
//window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, window->DC.CursorPos);
window->DC.IsSetPos = true;
}
// User generally sees positions in window coordinates. Internally we store CursorPos in absolute screen coordinates because it is more convenient.
// Conversion happens as we pass the value to user, but it makes our naming convention confusing because GetCursorPos() == (DC.CursorPos - window.Pos). May want to rename 'DC.CursorPos'.
ImVec2 ImGui::GetCursorPos()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CursorPos - window->Pos + window->Scroll;
}
float ImGui::GetCursorPosX()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CursorPos.x - window->Pos.x + window->Scroll.x;
}
float ImGui::GetCursorPosY()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CursorPos.y - window->Pos.y + window->Scroll.y;
}
void ImGui::SetCursorPos(const ImVec2& local_pos)
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.CursorPos = window->Pos - window->Scroll + local_pos;
//window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, window->DC.CursorPos);
window->DC.IsSetPos = true;
}
void ImGui::SetCursorPosX(float x)
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.CursorPos.x = window->Pos.x - window->Scroll.x + x;
//window->DC.CursorMaxPos.x = ImMax(window->DC.CursorMaxPos.x, window->DC.CursorPos.x);
window->DC.IsSetPos = true;
}
void ImGui::SetCursorPosY(float y)
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.CursorPos.y = window->Pos.y - window->Scroll.y + y;
//window->DC.CursorMaxPos.y = ImMax(window->DC.CursorMaxPos.y, window->DC.CursorPos.y);
window->DC.IsSetPos = true;
}
ImVec2 ImGui::GetCursorStartPos()
{
ImGuiWindow* window = GetCurrentWindowRead();
return window->DC.CursorStartPos - window->Pos;
}
void ImGui::Indent(float indent_w)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
window->DC.Indent.x += (indent_w != 0.0f) ? indent_w : g.Style.IndentSpacing;
window->DC.CursorPos.x = window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x;
}
void ImGui::Unindent(float indent_w)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
window->DC.Indent.x -= (indent_w != 0.0f) ? indent_w : g.Style.IndentSpacing;
window->DC.CursorPos.x = window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x;
}
// Affect large frame+labels widgets only.
void ImGui::SetNextItemWidth(float item_width)
{
ImGuiContext& g = *GImGui;
g.NextItemData.Flags |= ImGuiNextItemDataFlags_HasWidth;
g.NextItemData.Width = item_width;
}
// FIXME: Remove the == 0.0f behavior?
void ImGui::PushItemWidth(float item_width)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
window->DC.ItemWidthStack.push_back(window->DC.ItemWidth); // Backup current width
window->DC.ItemWidth = (item_width == 0.0f ? window->ItemWidthDefault : item_width);
g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
}
void ImGui::PushMultiItemsWidths(int components, float w_full)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const ImGuiStyle& style = g.Style;
const float w_item_one = ImMax(1.0f, IM_FLOOR((w_full - (style.ItemInnerSpacing.x) * (components - 1)) / (float)components));
const float w_item_last = ImMax(1.0f, IM_FLOOR(w_full - (w_item_one + style.ItemInnerSpacing.x) * (components - 1)));
window->DC.ItemWidthStack.push_back(window->DC.ItemWidth); // Backup current width
window->DC.ItemWidthStack.push_back(w_item_last);
for (int i = 0; i < components - 2; i++)
window->DC.ItemWidthStack.push_back(w_item_one);
window->DC.ItemWidth = (components == 1) ? w_item_last : w_item_one;
g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
}
void ImGui::PopItemWidth()
{
ImGuiWindow* window = GetCurrentWindow();
window->DC.ItemWidth = window->DC.ItemWidthStack.back();
window->DC.ItemWidthStack.pop_back();
}
// Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth().
// The SetNextItemWidth() data is generally cleared/consumed by ItemAdd() or NextItemData.ClearFlags()
float ImGui::CalcItemWidth()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
float w;
if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasWidth)
w = g.NextItemData.Width;
else
w = window->DC.ItemWidth;
if (w < 0.0f)
{
float region_max_x = GetContentRegionMaxAbs().x;
w = ImMax(1.0f, region_max_x - window->DC.CursorPos.x + w);
}
w = IM_FLOOR(w);
return w;
}
// [Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == CalcItemWidth().
// Those two functions CalcItemWidth vs CalcItemSize are awkwardly named because they are not fully symmetrical.
// Note that only CalcItemWidth() is publicly exposed.
// The 4.0f here may be changed to match CalcItemWidth() and/or BeginChild() (right now we have a mismatch which is harmless but undesirable)
ImVec2 ImGui::CalcItemSize(ImVec2 size, float default_w, float default_h)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImVec2 region_max;
if (size.x < 0.0f || size.y < 0.0f)
region_max = GetContentRegionMaxAbs();
if (size.x == 0.0f)
size.x = default_w;
else if (size.x < 0.0f)
size.x = ImMax(4.0f, region_max.x - window->DC.CursorPos.x + size.x);
if (size.y == 0.0f)
size.y = default_h;
else if (size.y < 0.0f)
size.y = ImMax(4.0f, region_max.y - window->DC.CursorPos.y + size.y);
return size;
}
float ImGui::GetTextLineHeight()
{
ImGuiContext& g = *GImGui;
return g.FontSize;
}
float ImGui::GetTextLineHeightWithSpacing()
{
ImGuiContext& g = *GImGui;
return g.FontSize + g.Style.ItemSpacing.y;
}
float ImGui::GetFrameHeight()
{
ImGuiContext& g = *GImGui;
return g.FontSize + g.Style.FramePadding.y * 2.0f;
}
float ImGui::GetFrameHeightWithSpacing()
{
ImGuiContext& g = *GImGui;
return g.FontSize + g.Style.FramePadding.y * 2.0f + g.Style.ItemSpacing.y;
}
// FIXME: All the Contents Region function are messy or misleading. WE WILL AIM TO OBSOLETE ALL OF THEM WITH A NEW "WORK RECT" API. Thanks for your patience!
// FIXME: This is in window space (not screen space!).
ImVec2 ImGui::GetContentRegionMax()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImVec2 mx = window->ContentRegionRect.Max - window->Pos;
if (window->DC.CurrentColumns || g.CurrentTable)
mx.x = window->WorkRect.Max.x - window->Pos.x;
return mx;
}
// [Internal] Absolute coordinate. Saner. This is not exposed until we finishing refactoring work rect features.
ImVec2 ImGui::GetContentRegionMaxAbs()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImVec2 mx = window->ContentRegionRect.Max;
if (window->DC.CurrentColumns || g.CurrentTable)
mx.x = window->WorkRect.Max.x;
return mx;
}
ImVec2 ImGui::GetContentRegionAvail()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return GetContentRegionMaxAbs() - window->DC.CursorPos;
}
// In window space (not screen space!)
ImVec2 ImGui::GetWindowContentRegionMin()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->ContentRegionRect.Min - window->Pos;
}
ImVec2 ImGui::GetWindowContentRegionMax()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->ContentRegionRect.Max - window->Pos;
}
// Lock horizontal starting position + capture group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine() on whole group, etc.)
// Groups are currently a mishmash of functionalities which should perhaps be clarified and separated.
// FIXME-OPT: Could we safely early out on ->SkipItems?
void ImGui::BeginGroup()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
g.GroupStack.resize(g.GroupStack.Size + 1);
ImGuiGroupData& group_data = g.GroupStack.back();
group_data.WindowID = window->ID;
group_data.BackupCursorPos = window->DC.CursorPos;
group_data.BackupCursorMaxPos = window->DC.CursorMaxPos;
group_data.BackupIndent = window->DC.Indent;
group_data.BackupGroupOffset = window->DC.GroupOffset;
group_data.BackupCurrLineSize = window->DC.CurrLineSize;
group_data.BackupCurrLineTextBaseOffset = window->DC.CurrLineTextBaseOffset;
group_data.BackupActiveIdIsAlive = g.ActiveIdIsAlive;
group_data.BackupHoveredIdIsAlive = g.HoveredId != 0;
group_data.BackupActiveIdPreviousFrameIsAlive = g.ActiveIdPreviousFrameIsAlive;
group_data.EmitItem = true;
window->DC.GroupOffset.x = window->DC.CursorPos.x - window->Pos.x - window->DC.ColumnsOffset.x;
window->DC.Indent = window->DC.GroupOffset;
window->DC.CursorMaxPos = window->DC.CursorPos;
window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
if (g.LogEnabled)
g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
}
void ImGui::EndGroup()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(g.GroupStack.Size > 0); // Mismatched BeginGroup()/EndGroup() calls
ImGuiGroupData& group_data = g.GroupStack.back();
IM_ASSERT(group_data.WindowID == window->ID); // EndGroup() in wrong window?
if (window->DC.IsSetPos)
ErrorCheckUsingSetCursorPosToExtendParentBoundaries();
ImRect group_bb(group_data.BackupCursorPos, ImMax(window->DC.CursorMaxPos, group_data.BackupCursorPos));
window->DC.CursorPos = group_data.BackupCursorPos;
window->DC.CursorMaxPos = ImMax(group_data.BackupCursorMaxPos, window->DC.CursorMaxPos);
window->DC.Indent = group_data.BackupIndent;
window->DC.GroupOffset = group_data.BackupGroupOffset;
window->DC.CurrLineSize = group_data.BackupCurrLineSize;
window->DC.CurrLineTextBaseOffset = group_data.BackupCurrLineTextBaseOffset;
if (g.LogEnabled)
g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
if (!group_data.EmitItem)
{
g.GroupStack.pop_back();
return;
}
window->DC.CurrLineTextBaseOffset = ImMax(window->DC.PrevLineTextBaseOffset, group_data.BackupCurrLineTextBaseOffset); // FIXME: Incorrect, we should grab the base offset from the *first line* of the group but it is hard to obtain now.
ItemSize(group_bb.GetSize());
ItemAdd(group_bb, 0, NULL, ImGuiItemFlags_NoTabStop);
// If the current ActiveId was declared within the boundary of our group, we copy it to LastItemId so IsItemActive(), IsItemDeactivated() etc. will be functional on the entire group.
// It would be neater if we replaced window.DC.LastItemId by e.g. 'bool LastItemIsActive', but would put a little more burden on individual widgets.
// Also if you grep for LastItemId you'll notice it is only used in that context.
// (The two tests not the same because ActiveIdIsAlive is an ID itself, in order to be able to handle ActiveId being overwritten during the frame.)
const bool group_contains_curr_active_id = (group_data.BackupActiveIdIsAlive != g.ActiveId) && (g.ActiveIdIsAlive == g.ActiveId) && g.ActiveId;
const bool group_contains_prev_active_id = (group_data.BackupActiveIdPreviousFrameIsAlive == false) && (g.ActiveIdPreviousFrameIsAlive == true);
if (group_contains_curr_active_id)
g.LastItemData.ID = g.ActiveId;
else if (group_contains_prev_active_id)
g.LastItemData.ID = g.ActiveIdPreviousFrame;
g.LastItemData.Rect = group_bb;
// Forward Hovered flag
const bool group_contains_curr_hovered_id = (group_data.BackupHoveredIdIsAlive == false) && g.HoveredId != 0;
if (group_contains_curr_hovered_id)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredWindow;
// Forward Edited flag
if (group_contains_curr_active_id && g.ActiveIdHasBeenEditedThisFrame)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Edited;
// Forward Deactivated flag
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HasDeactivated;
if (group_contains_prev_active_id && g.ActiveId != g.ActiveIdPreviousFrame)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Deactivated;
g.GroupStack.pop_back();
//window->DrawList->AddRect(group_bb.Min, group_bb.Max, IM_COL32(255,0,255,255)); // [Debug]
}
//-----------------------------------------------------------------------------
// [SECTION] SCROLLING
//-----------------------------------------------------------------------------
// Helper to snap on edges when aiming at an item very close to the edge,
// So the difference between WindowPadding and ItemSpacing will be in the visible area after scrolling.
// When we refactor the scrolling API this may be configurable with a flag?
// Note that the effect for this won't be visible on X axis with default Style settings as WindowPadding.x == ItemSpacing.x by default.
static float CalcScrollEdgeSnap(float target, float snap_min, float snap_max, float snap_threshold, float center_ratio)
{
if (target <= snap_min + snap_threshold)
return ImLerp(snap_min, target, center_ratio);
if (target >= snap_max - snap_threshold)
return ImLerp(target, snap_max, center_ratio);
return target;
}
static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window)
{
ImVec2 scroll = window->Scroll;
ImVec2 decoration_size(window->DecoOuterSizeX1 + window->DecoInnerSizeX1 + window->DecoOuterSizeX2, window->DecoOuterSizeY1 + window->DecoInnerSizeY1 + window->DecoOuterSizeY2);
for (int axis = 0; axis < 2; axis++)
{
if (window->ScrollTarget[axis] < FLT_MAX)
{
float center_ratio = window->ScrollTargetCenterRatio[axis];
float scroll_target = window->ScrollTarget[axis];
if (window->ScrollTargetEdgeSnapDist[axis] > 0.0f)
{
float snap_min = 0.0f;
float snap_max = window->ScrollMax[axis] + window->SizeFull[axis] - decoration_size[axis];
scroll_target = CalcScrollEdgeSnap(scroll_target, snap_min, snap_max, window->ScrollTargetEdgeSnapDist[axis], center_ratio);
}
scroll[axis] = scroll_target - center_ratio * (window->SizeFull[axis] - decoration_size[axis]);
}
scroll[axis] = IM_FLOOR(ImMax(scroll[axis], 0.0f));
if (!window->Collapsed && !window->SkipItems)
scroll[axis] = ImMin(scroll[axis], window->ScrollMax[axis]);
}
return scroll;
}
void ImGui::ScrollToItem(ImGuiScrollFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ScrollToRectEx(window, g.LastItemData.NavRect, flags);
}
void ImGui::ScrollToRect(ImGuiWindow* window, const ImRect& item_rect, ImGuiScrollFlags flags)
{
ScrollToRectEx(window, item_rect, flags);
}
// Scroll to keep newly navigated item fully into view
ImVec2 ImGui::ScrollToRectEx(ImGuiWindow* window, const ImRect& item_rect, ImGuiScrollFlags flags)
{
ImGuiContext& g = *GImGui;
ImRect scroll_rect(window->InnerRect.Min - ImVec2(1, 1), window->InnerRect.Max + ImVec2(1, 1));
scroll_rect.Min.x = ImMin(scroll_rect.Min.x + window->DecoInnerSizeX1, scroll_rect.Max.x);
scroll_rect.Min.y = ImMin(scroll_rect.Min.y + window->DecoInnerSizeY1, scroll_rect.Max.y);
//GetForegroundDrawList(window)->AddRect(item_rect.Min, item_rect.Max, IM_COL32(255,0,0,255), 0.0f, 0, 5.0f); // [DEBUG]
//GetForegroundDrawList(window)->AddRect(scroll_rect.Min, scroll_rect.Max, IM_COL32_WHITE); // [DEBUG]
// Check that only one behavior is selected per axis
IM_ASSERT((flags & ImGuiScrollFlags_MaskX_) == 0 || ImIsPowerOfTwo(flags & ImGuiScrollFlags_MaskX_));
IM_ASSERT((flags & ImGuiScrollFlags_MaskY_) == 0 || ImIsPowerOfTwo(flags & ImGuiScrollFlags_MaskY_));
// Defaults
ImGuiScrollFlags in_flags = flags;
if ((flags & ImGuiScrollFlags_MaskX_) == 0 && window->ScrollbarX)
flags |= ImGuiScrollFlags_KeepVisibleEdgeX;
if ((flags & ImGuiScrollFlags_MaskY_) == 0)
flags |= window->Appearing ? ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeY;
const bool fully_visible_x = item_rect.Min.x >= scroll_rect.Min.x && item_rect.Max.x <= scroll_rect.Max.x;
const bool fully_visible_y = item_rect.Min.y >= scroll_rect.Min.y && item_rect.Max.y <= scroll_rect.Max.y;
const bool can_be_fully_visible_x = (item_rect.GetWidth() + g.Style.ItemSpacing.x * 2.0f) <= scroll_rect.GetWidth() || (window->AutoFitFramesX > 0) || (window->Flags & ImGuiWindowFlags_AlwaysAutoResize) != 0;
const bool can_be_fully_visible_y = (item_rect.GetHeight() + g.Style.ItemSpacing.y * 2.0f) <= scroll_rect.GetHeight() || (window->AutoFitFramesY > 0) || (window->Flags & ImGuiWindowFlags_AlwaysAutoResize) != 0;
if ((flags & ImGuiScrollFlags_KeepVisibleEdgeX) && !fully_visible_x)
{
if (item_rect.Min.x < scroll_rect.Min.x || !can_be_fully_visible_x)
SetScrollFromPosX(window, item_rect.Min.x - g.Style.ItemSpacing.x - window->Pos.x, 0.0f);
else if (item_rect.Max.x >= scroll_rect.Max.x)
SetScrollFromPosX(window, item_rect.Max.x + g.Style.ItemSpacing.x - window->Pos.x, 1.0f);
}
else if (((flags & ImGuiScrollFlags_KeepVisibleCenterX) && !fully_visible_x) || (flags & ImGuiScrollFlags_AlwaysCenterX))
{
if (can_be_fully_visible_x)
SetScrollFromPosX(window, ImFloor((item_rect.Min.x + item_rect.Max.x) * 0.5f) - window->Pos.x, 0.5f);
else
SetScrollFromPosX(window, item_rect.Min.x - window->Pos.x, 0.0f);
}
if ((flags & ImGuiScrollFlags_KeepVisibleEdgeY) && !fully_visible_y)
{
if (item_rect.Min.y < scroll_rect.Min.y || !can_be_fully_visible_y)
SetScrollFromPosY(window, item_rect.Min.y - g.Style.ItemSpacing.y - window->Pos.y, 0.0f);
else if (item_rect.Max.y >= scroll_rect.Max.y)
SetScrollFromPosY(window, item_rect.Max.y + g.Style.ItemSpacing.y - window->Pos.y, 1.0f);
}
else if (((flags & ImGuiScrollFlags_KeepVisibleCenterY) && !fully_visible_y) || (flags & ImGuiScrollFlags_AlwaysCenterY))
{
if (can_be_fully_visible_y)
SetScrollFromPosY(window, ImFloor((item_rect.Min.y + item_rect.Max.y) * 0.5f) - window->Pos.y, 0.5f);
else
SetScrollFromPosY(window, item_rect.Min.y - window->Pos.y, 0.0f);
}
ImVec2 next_scroll = CalcNextScrollFromScrollTargetAndClamp(window);
ImVec2 delta_scroll = next_scroll - window->Scroll;
// Also scroll parent window to keep us into view if necessary
if (!(flags & ImGuiScrollFlags_NoScrollParent) && (window->Flags & ImGuiWindowFlags_ChildWindow))
{
// FIXME-SCROLL: May be an option?
if ((in_flags & (ImGuiScrollFlags_AlwaysCenterX | ImGuiScrollFlags_KeepVisibleCenterX)) != 0)
in_flags = (in_flags & ~ImGuiScrollFlags_MaskX_) | ImGuiScrollFlags_KeepVisibleEdgeX;
if ((in_flags & (ImGuiScrollFlags_AlwaysCenterY | ImGuiScrollFlags_KeepVisibleCenterY)) != 0)
in_flags = (in_flags & ~ImGuiScrollFlags_MaskY_) | ImGuiScrollFlags_KeepVisibleEdgeY;
delta_scroll += ScrollToRectEx(window->ParentWindow, ImRect(item_rect.Min - delta_scroll, item_rect.Max - delta_scroll), in_flags);
}
return delta_scroll;
}
float ImGui::GetScrollX()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->Scroll.x;
}
float ImGui::GetScrollY()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->Scroll.y;
}
float ImGui::GetScrollMaxX()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->ScrollMax.x;
}
float ImGui::GetScrollMaxY()
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->ScrollMax.y;
}
void ImGui::SetScrollX(ImGuiWindow* window, float scroll_x)
{
window->ScrollTarget.x = scroll_x;
window->ScrollTargetCenterRatio.x = 0.0f;
window->ScrollTargetEdgeSnapDist.x = 0.0f;
}
void ImGui::SetScrollY(ImGuiWindow* window, float scroll_y)
{
window->ScrollTarget.y = scroll_y;
window->ScrollTargetCenterRatio.y = 0.0f;
window->ScrollTargetEdgeSnapDist.y = 0.0f;
}
void ImGui::SetScrollX(float scroll_x)
{
ImGuiContext& g = *GImGui;
SetScrollX(g.CurrentWindow, scroll_x);
}
void ImGui::SetScrollY(float scroll_y)
{
ImGuiContext& g = *GImGui;
SetScrollY(g.CurrentWindow, scroll_y);
}
// Note that a local position will vary depending on initial scroll value,
// This is a little bit confusing so bear with us:
// - local_pos = (absolution_pos - window->Pos)
// - So local_x/local_y are 0.0f for a position at the upper-left corner of a window,
// and generally local_x/local_y are >(padding+decoration) && <(size-padding-decoration) when in the visible area.
// - They mostly exist because of legacy API.
// Following the rules above, when trying to work with scrolling code, consider that:
// - SetScrollFromPosY(0.0f) == SetScrollY(0.0f + scroll.y) == has no effect!
// - SetScrollFromPosY(-scroll.y) == SetScrollY(-scroll.y + scroll.y) == SetScrollY(0.0f) == reset scroll. Of course writing SetScrollY(0.0f) directly then makes more sense
// We store a target position so centering and clamping can occur on the next frame when we are guaranteed to have a known window size
void ImGui::SetScrollFromPosX(ImGuiWindow* window, float local_x, float center_x_ratio)
{
IM_ASSERT(center_x_ratio >= 0.0f && center_x_ratio <= 1.0f);
window->ScrollTarget.x = IM_FLOOR(local_x - window->DecoOuterSizeX1 - window->DecoInnerSizeX1 + window->Scroll.x); // Convert local position to scroll offset
window->ScrollTargetCenterRatio.x = center_x_ratio;
window->ScrollTargetEdgeSnapDist.x = 0.0f;
}
void ImGui::SetScrollFromPosY(ImGuiWindow* window, float local_y, float center_y_ratio)
{
IM_ASSERT(center_y_ratio >= 0.0f && center_y_ratio <= 1.0f);
window->ScrollTarget.y = IM_FLOOR(local_y - window->DecoOuterSizeY1 - window->DecoInnerSizeY1 + window->Scroll.y); // Convert local position to scroll offset
window->ScrollTargetCenterRatio.y = center_y_ratio;
window->ScrollTargetEdgeSnapDist.y = 0.0f;
}
void ImGui::SetScrollFromPosX(float local_x, float center_x_ratio)
{
ImGuiContext& g = *GImGui;
SetScrollFromPosX(g.CurrentWindow, local_x, center_x_ratio);
}
void ImGui::SetScrollFromPosY(float local_y, float center_y_ratio)
{
ImGuiContext& g = *GImGui;
SetScrollFromPosY(g.CurrentWindow, local_y, center_y_ratio);
}
// center_x_ratio: 0.0f left of last item, 0.5f horizontal center of last item, 1.0f right of last item.
void ImGui::SetScrollHereX(float center_x_ratio)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
float spacing_x = ImMax(window->WindowPadding.x, g.Style.ItemSpacing.x);
float target_pos_x = ImLerp(g.LastItemData.Rect.Min.x - spacing_x, g.LastItemData.Rect.Max.x + spacing_x, center_x_ratio);
SetScrollFromPosX(window, target_pos_x - window->Pos.x, center_x_ratio); // Convert from absolute to local pos
// Tweak: snap on edges when aiming at an item very close to the edge
window->ScrollTargetEdgeSnapDist.x = ImMax(0.0f, window->WindowPadding.x - spacing_x);
}
// center_y_ratio: 0.0f top of last item, 0.5f vertical center of last item, 1.0f bottom of last item.
void ImGui::SetScrollHereY(float center_y_ratio)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
float spacing_y = ImMax(window->WindowPadding.y, g.Style.ItemSpacing.y);
float target_pos_y = ImLerp(window->DC.CursorPosPrevLine.y - spacing_y, window->DC.CursorPosPrevLine.y + window->DC.PrevLineSize.y + spacing_y, center_y_ratio);
SetScrollFromPosY(window, target_pos_y - window->Pos.y, center_y_ratio); // Convert from absolute to local pos
// Tweak: snap on edges when aiming at an item very close to the edge
window->ScrollTargetEdgeSnapDist.y = ImMax(0.0f, window->WindowPadding.y - spacing_y);
}
//-----------------------------------------------------------------------------
// [SECTION] TOOLTIPS
//-----------------------------------------------------------------------------
bool ImGui::BeginTooltip()
{
return BeginTooltipEx(ImGuiTooltipFlags_None, ImGuiWindowFlags_None);
}
bool ImGui::BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags)
{
ImGuiContext& g = *GImGui;
if (g.DragDropWithinSource || g.DragDropWithinTarget)
{
// The default tooltip position is a little offset to give space to see the context menu (it's also clamped within the current viewport/monitor)
// In the context of a dragging tooltip we try to reduce that offset and we enforce following the cursor.
// Whatever we do we want to call SetNextWindowPos() to enforce a tooltip position and disable clipping the tooltip without our display area, like regular tooltip do.
//ImVec2 tooltip_pos = g.IO.MousePos - g.ActiveIdClickOffset - g.Style.WindowPadding;
ImVec2 tooltip_pos = g.IO.MousePos + ImVec2(16 * g.Style.MouseCursorScale, 8 * g.Style.MouseCursorScale);
SetNextWindowPos(tooltip_pos);
SetNextWindowBgAlpha(g.Style.Colors[ImGuiCol_PopupBg].w * 0.60f);
//PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.60f); // This would be nice but e.g ColorButton with checkboard has issue with transparent colors :(
tooltip_flags |= ImGuiTooltipFlags_OverridePreviousTooltip;
}
char window_name[16];
ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip_%02d", g.TooltipOverrideCount);
if (tooltip_flags & ImGuiTooltipFlags_OverridePreviousTooltip)
if (ImGuiWindow* window = FindWindowByName(window_name))
if (window->Active)
{
// Hide previous tooltip from being displayed. We can't easily "reset" the content of a window so we create a new one.
SetWindowHiddendAndSkipItemsForCurrentFrame(window);
ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip_%02d", ++g.TooltipOverrideCount);
}
ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_AlwaysAutoResize;
Begin(window_name, NULL, flags | extra_window_flags);
// 2023-03-09: Added bool return value to the API, but currently always returning true.
// If this ever returns false we need to update BeginDragDropSource() accordingly.
//if (!ret)
// End();
//return ret;
return true;
}
void ImGui::EndTooltip()
{
IM_ASSERT(GetCurrentWindowRead()->Flags & ImGuiWindowFlags_Tooltip); // Mismatched BeginTooltip()/EndTooltip() calls
End();
}
void ImGui::SetTooltipV(const char* fmt, va_list args)
{
if (!BeginTooltipEx(ImGuiTooltipFlags_OverridePreviousTooltip, ImGuiWindowFlags_None))
return;
TextV(fmt, args);
EndTooltip();
}
void ImGui::SetTooltip(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
SetTooltipV(fmt, args);
va_end(args);
}
//-----------------------------------------------------------------------------
// [SECTION] POPUPS
//-----------------------------------------------------------------------------
// Supported flags: ImGuiPopupFlags_AnyPopupId, ImGuiPopupFlags_AnyPopupLevel
bool ImGui::IsPopupOpen(ImGuiID id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
if (popup_flags & ImGuiPopupFlags_AnyPopupId)
{
// Return true if any popup is open at the current BeginPopup() level of the popup stack
// This may be used to e.g. test for another popups already opened to handle popups priorities at the same level.
IM_ASSERT(id == 0);
if (popup_flags & ImGuiPopupFlags_AnyPopupLevel)
return g.OpenPopupStack.Size > 0;
else
return g.OpenPopupStack.Size > g.BeginPopupStack.Size;
}
else
{
if (popup_flags & ImGuiPopupFlags_AnyPopupLevel)
{
// Return true if the popup is open anywhere in the popup stack
for (int n = 0; n < g.OpenPopupStack.Size; n++)
if (g.OpenPopupStack[n].PopupId == id)
return true;
return false;
}
else
{
// Return true if the popup is open at the current BeginPopup() level of the popup stack (this is the most-common query)
return g.OpenPopupStack.Size > g.BeginPopupStack.Size && g.OpenPopupStack[g.BeginPopupStack.Size].PopupId == id;
}
}
}
bool ImGui::IsPopupOpen(const char* str_id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiID id = (popup_flags & ImGuiPopupFlags_AnyPopupId) ? 0 : g.CurrentWindow->GetID(str_id);
if ((popup_flags & ImGuiPopupFlags_AnyPopupLevel) && id != 0)
IM_ASSERT(0 && "Cannot use IsPopupOpen() with a string id and ImGuiPopupFlags_AnyPopupLevel."); // But non-string version is legal and used internally
return IsPopupOpen(id, popup_flags);
}
ImGuiWindow* ImGui::GetTopMostPopupModal()
{
ImGuiContext& g = *GImGui;
for (int n = g.OpenPopupStack.Size - 1; n >= 0; n--)
if (ImGuiWindow* popup = g.OpenPopupStack.Data[n].Window)
if (popup->Flags & ImGuiWindowFlags_Modal)
return popup;
return NULL;
}
ImGuiWindow* ImGui::GetTopMostAndVisiblePopupModal()
{
ImGuiContext& g = *GImGui;
for (int n = g.OpenPopupStack.Size - 1; n >= 0; n--)
if (ImGuiWindow* popup = g.OpenPopupStack.Data[n].Window)
if ((popup->Flags & ImGuiWindowFlags_Modal) && IsWindowActiveAndVisible(popup))
return popup;
return NULL;
}
void ImGui::OpenPopup(const char* str_id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiID id = g.CurrentWindow->GetID(str_id);
IMGUI_DEBUG_LOG_POPUP("[popup] OpenPopup(\"%s\" -> 0x%08X)\n", str_id, id);
OpenPopupEx(id, popup_flags);
}
void ImGui::OpenPopup(ImGuiID id, ImGuiPopupFlags popup_flags)
{
OpenPopupEx(id, popup_flags);
}
// Mark popup as open (toggle toward open state).
// Popups are closed when user click outside, or activate a pressable item, or CloseCurrentPopup() is called within a BeginPopup()/EndPopup() block.
// Popup identifiers are relative to the current ID-stack (so OpenPopup and BeginPopup needs to be at the same level).
// One open popup per level of the popup hierarchy (NB: when assigning we reset the Window member of ImGuiPopupRef to NULL)
void ImGui::OpenPopupEx(ImGuiID id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* parent_window = g.CurrentWindow;
const int current_stack_size = g.BeginPopupStack.Size;
if (popup_flags & ImGuiPopupFlags_NoOpenOverExistingPopup)
if (IsPopupOpen((ImGuiID)0, ImGuiPopupFlags_AnyPopupId))
return;
ImGuiPopupData popup_ref; // Tagged as new ref as Window will be set back to NULL if we write this into OpenPopupStack.
popup_ref.PopupId = id;
popup_ref.Window = NULL;
popup_ref.BackupNavWindow = g.NavWindow; // When popup closes focus may be restored to NavWindow (depend on window type).
popup_ref.OpenFrameCount = g.FrameCount;
popup_ref.OpenParentId = parent_window->IDStack.back();
popup_ref.OpenPopupPos = NavCalcPreferredRefPos();
popup_ref.OpenMousePos = IsMousePosValid(&g.IO.MousePos) ? g.IO.MousePos : popup_ref.OpenPopupPos;
IMGUI_DEBUG_LOG_POPUP("[popup] OpenPopupEx(0x%08X)\n", id);
if (g.OpenPopupStack.Size < current_stack_size + 1)
{
g.OpenPopupStack.push_back(popup_ref);
}
else
{
// Gently handle the user mistakenly calling OpenPopup() every frame. It is a programming mistake! However, if we were to run the regular code path, the ui
// would become completely unusable because the popup will always be in hidden-while-calculating-size state _while_ claiming focus. Which would be a very confusing
// situation for the programmer. Instead, we silently allow the popup to proceed, it will keep reappearing and the programming error will be more obvious to understand.
if (g.OpenPopupStack[current_stack_size].PopupId == id && g.OpenPopupStack[current_stack_size].OpenFrameCount == g.FrameCount - 1)
{
g.OpenPopupStack[current_stack_size].OpenFrameCount = popup_ref.OpenFrameCount;
}
else
{
// Close child popups if any, then flag popup for open/reopen
ClosePopupToLevel(current_stack_size, false);
g.OpenPopupStack.push_back(popup_ref);
}
// When reopening a popup we first refocus its parent, otherwise if its parent is itself a popup it would get closed by ClosePopupsOverWindow().
// This is equivalent to what ClosePopupToLevel() does.
//if (g.OpenPopupStack[current_stack_size].PopupId == id)
// FocusWindow(parent_window);
}
}
// When popups are stacked, clicking on a lower level popups puts focus back to it and close popups above it.
// This function closes any popups that are over 'ref_window'.
void ImGui::ClosePopupsOverWindow(ImGuiWindow* ref_window, bool restore_focus_to_window_under_popup)
{
ImGuiContext& g = *GImGui;
if (g.OpenPopupStack.Size == 0)
return;
// Don't close our own child popup windows.
int popup_count_to_keep = 0;
if (ref_window)
{
// Find the highest popup which is a descendant of the reference window (generally reference window = NavWindow)
for (; popup_count_to_keep < g.OpenPopupStack.Size; popup_count_to_keep++)
{
ImGuiPopupData& popup = g.OpenPopupStack[popup_count_to_keep];
if (!popup.Window)
continue;
IM_ASSERT((popup.Window->Flags & ImGuiWindowFlags_Popup) != 0);
if (popup.Window->Flags & ImGuiWindowFlags_ChildWindow)
continue;
// Trim the stack unless the popup is a direct parent of the reference window (the reference window is often the NavWindow)
// - With this stack of window, clicking/focusing Popup1 will close Popup2 and Popup3:
// Window -> Popup1 -> Popup2 -> Popup3
// - Each popups may contain child windows, which is why we compare ->RootWindow!
// Window -> Popup1 -> Popup1_Child -> Popup2 -> Popup2_Child
bool ref_window_is_descendent_of_popup = false;
for (int n = popup_count_to_keep; n < g.OpenPopupStack.Size; n++)
if (ImGuiWindow* popup_window = g.OpenPopupStack[n].Window)
if (IsWindowWithinBeginStackOf(ref_window, popup_window))
{
ref_window_is_descendent_of_popup = true;
break;
}
if (!ref_window_is_descendent_of_popup)
break;
}
}
if (popup_count_to_keep < g.OpenPopupStack.Size) // This test is not required but it allows to set a convenient breakpoint on the statement below
{
IMGUI_DEBUG_LOG_POPUP("[popup] ClosePopupsOverWindow(\"%s\")\n", ref_window ? ref_window->Name : "<NULL>");
ClosePopupToLevel(popup_count_to_keep, restore_focus_to_window_under_popup);
}
}
void ImGui::ClosePopupsExceptModals()
{
ImGuiContext& g = *GImGui;
int popup_count_to_keep;
for (popup_count_to_keep = g.OpenPopupStack.Size; popup_count_to_keep > 0; popup_count_to_keep--)
{
ImGuiWindow* window = g.OpenPopupStack[popup_count_to_keep - 1].Window;
if (!window || window->Flags & ImGuiWindowFlags_Modal)
break;
}
if (popup_count_to_keep < g.OpenPopupStack.Size) // This test is not required but it allows to set a convenient breakpoint on the statement below
ClosePopupToLevel(popup_count_to_keep, true);
}
void ImGui::ClosePopupToLevel(int remaining, bool restore_focus_to_window_under_popup)
{
ImGuiContext& g = *GImGui;
IMGUI_DEBUG_LOG_POPUP("[popup] ClosePopupToLevel(%d), restore_focus_to_window_under_popup=%d\n", remaining, restore_focus_to_window_under_popup);
IM_ASSERT(remaining >= 0 && remaining < g.OpenPopupStack.Size);
// Trim open popup stack
ImGuiWindow* popup_window = g.OpenPopupStack[remaining].Window;
ImGuiWindow* popup_backup_nav_window = g.OpenPopupStack[remaining].BackupNavWindow;
g.OpenPopupStack.resize(remaining);
if (restore_focus_to_window_under_popup)
{
ImGuiWindow* focus_window = (popup_window && popup_window->Flags & ImGuiWindowFlags_ChildMenu) ? popup_window->ParentWindow : popup_backup_nav_window;
if (focus_window && !focus_window->WasActive && popup_window)
{
// Fallback
FocusTopMostWindowUnderOne(popup_window, NULL);
}
else
{
if (g.NavLayer == ImGuiNavLayer_Main && focus_window)
focus_window = NavRestoreLastChildNavWindow(focus_window);
FocusWindow(focus_window);
}
}
}
// Close the popup we have begin-ed into.
void ImGui::CloseCurrentPopup()
{
ImGuiContext& g = *GImGui;
int popup_idx = g.BeginPopupStack.Size - 1;
if (popup_idx < 0 || popup_idx >= g.OpenPopupStack.Size || g.BeginPopupStack[popup_idx].PopupId != g.OpenPopupStack[popup_idx].PopupId)
return;
// Closing a menu closes its top-most parent popup (unless a modal)
while (popup_idx > 0)
{
ImGuiWindow* popup_window = g.OpenPopupStack[popup_idx].Window;
ImGuiWindow* parent_popup_window = g.OpenPopupStack[popup_idx - 1].Window;
bool close_parent = false;
if (popup_window && (popup_window->Flags & ImGuiWindowFlags_ChildMenu))
if (parent_popup_window && !(parent_popup_window->Flags & ImGuiWindowFlags_MenuBar))
close_parent = true;
if (!close_parent)
break;
popup_idx--;
}
IMGUI_DEBUG_LOG_POPUP("[popup] CloseCurrentPopup %d -> %d\n", g.BeginPopupStack.Size - 1, popup_idx);
ClosePopupToLevel(popup_idx, true);
// A common pattern is to close a popup when selecting a menu item/selectable that will open another window.
// To improve this usage pattern, we avoid nav highlight for a single frame in the parent window.
// Similarly, we could avoid mouse hover highlight in this window but it is less visually problematic.
if (ImGuiWindow* window = g.NavWindow)
window->DC.NavHideHighlightOneFrame = true;
}
// Attention! BeginPopup() adds default flags which BeginPopupEx()!
bool ImGui::BeginPopupEx(ImGuiID id, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
if (!IsPopupOpen(id, ImGuiPopupFlags_None))
{
g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
return false;
}
char name[20];
if (flags & ImGuiWindowFlags_ChildMenu)
ImFormatString(name, IM_ARRAYSIZE(name), "##Menu_%02d", g.BeginMenuCount); // Recycle windows based on depth
else
ImFormatString(name, IM_ARRAYSIZE(name), "##Popup_%08x", id); // Not recycling, so we can close/open during the same frame
flags |= ImGuiWindowFlags_Popup;
bool is_open = Begin(name, NULL, flags);
if (!is_open) // NB: Begin can return false when the popup is completely clipped (e.g. zero size display)
EndPopup();
return is_open;
}
bool ImGui::BeginPopup(const char* str_id, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
if (g.OpenPopupStack.Size <= g.BeginPopupStack.Size) // Early out for performance
{
g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
return false;
}
flags |= ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings;
ImGuiID id = g.CurrentWindow->GetID(str_id);
return BeginPopupEx(id, flags);
}
// If 'p_open' is specified for a modal popup window, the popup will have a regular close button which will close the popup.
// Note that popup visibility status is owned by Dear ImGui (and manipulated with e.g. OpenPopup) so the actual value of *p_open is meaningless here.
bool ImGui::BeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const ImGuiID id = window->GetID(name);
if (!IsPopupOpen(id, ImGuiPopupFlags_None))
{
g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
return false;
}
// Center modal windows by default for increased visibility
// (this won't really last as settings will kick in, and is mostly for backward compatibility. user may do the same themselves)
// FIXME: Should test for (PosCond & window->SetWindowPosAllowFlags) with the upcoming window.
if ((g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasPos) == 0)
{
const ImGuiViewport* viewport = GetMainViewport();
SetNextWindowPos(viewport->GetCenter(), ImGuiCond_FirstUseEver, ImVec2(0.5f, 0.5f));
}
flags |= ImGuiWindowFlags_Popup | ImGuiWindowFlags_Modal | ImGuiWindowFlags_NoCollapse;
const bool is_open = Begin(name, p_open, flags);
if (!is_open || (p_open && !*p_open)) // NB: is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
{
EndPopup();
if (is_open)
ClosePopupToLevel(g.BeginPopupStack.Size, true);
return false;
}
return is_open;
}
void ImGui::EndPopup()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(window->Flags & ImGuiWindowFlags_Popup); // Mismatched BeginPopup()/EndPopup() calls
IM_ASSERT(g.BeginPopupStack.Size > 0);
// Make all menus and popups wrap around for now, may need to expose that policy (e.g. focus scope could include wrap/loop policy flags used by new move requests)
if (g.NavWindow == window)
NavMoveRequestTryWrapping(window, ImGuiNavMoveFlags_LoopY);
// Child-popups don't need to be laid out
IM_ASSERT(g.WithinEndChild == false);
if (window->Flags & ImGuiWindowFlags_ChildWindow)
g.WithinEndChild = true;
End();
g.WithinEndChild = false;
}
// Helper to open a popup if mouse button is released over the item
// - This is essentially the same as BeginPopupContextItem() but without the trailing BeginPopup()
void ImGui::OpenPopupOnItemClick(const char* str_id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
if (IsMouseReleased(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
{
ImGuiID id = str_id ? window->GetID(str_id) : g.LastItemData.ID; // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
IM_ASSERT(id != 0); // You cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
OpenPopupEx(id, popup_flags);
}
}
// This is a helper to handle the simplest case of associating one named popup to one given widget.
// - To create a popup associated to the last item, you generally want to pass a NULL value to str_id.
// - To create a popup with a specific identifier, pass it in str_id.
// - This is useful when using using BeginPopupContextItem() on an item which doesn't have an identifier, e.g. a Text() call.
// - This is useful when multiple code locations may want to manipulate/open the same popup, given an explicit id.
// - You may want to handle the whole on user side if you have specific needs (e.g. tweaking IsItemHovered() parameters).
// This is essentially the same as:
// id = str_id ? GetID(str_id) : GetItemID();
// OpenPopupOnItemClick(str_id, ImGuiPopupFlags_MouseButtonRight);
// return BeginPopup(id);
// Which is essentially the same as:
// id = str_id ? GetID(str_id) : GetItemID();
// if (IsItemHovered() && IsMouseReleased(ImGuiMouseButton_Right))
// OpenPopup(id);
// return BeginPopup(id);
// The main difference being that this is tweaked to avoid computing the ID twice.
bool ImGui::BeginPopupContextItem(const char* str_id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
ImGuiID id = str_id ? window->GetID(str_id) : g.LastItemData.ID; // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
IM_ASSERT(id != 0); // You cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
if (IsMouseReleased(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
OpenPopupEx(id, popup_flags);
return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
}
bool ImGui::BeginPopupContextWindow(const char* str_id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (!str_id)
str_id = "window_context";
ImGuiID id = window->GetID(str_id);
int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
if (IsMouseReleased(mouse_button) && IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
if (!(popup_flags & ImGuiPopupFlags_NoOpenOverItems) || !IsAnyItemHovered())
OpenPopupEx(id, popup_flags);
return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
}
bool ImGui::BeginPopupContextVoid(const char* str_id, ImGuiPopupFlags popup_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (!str_id)
str_id = "void_context";
ImGuiID id = window->GetID(str_id);
int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
if (IsMouseReleased(mouse_button) && !IsWindowHovered(ImGuiHoveredFlags_AnyWindow))
if (GetTopMostPopupModal() == NULL)
OpenPopupEx(id, popup_flags);
return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
}
// r_avoid = the rectangle to avoid (e.g. for tooltip it is a rectangle around the mouse cursor which we want to avoid. for popups it's a small point around the cursor.)
// r_outer = the visible area rectangle, minus safe area padding. If our popup size won't fit because of safe area padding we ignore it.
// (r_outer is usually equivalent to the viewport rectangle minus padding, but when multi-viewports are enabled and monitor
// information are available, it may represent the entire platform monitor from the frame of reference of the current viewport.
// this allows us to have tooltips/popups displayed out of the parent viewport.)
ImVec2 ImGui::FindBestWindowPosForPopupEx(const ImVec2& ref_pos, const ImVec2& size, ImGuiDir* last_dir, const ImRect& r_outer, const ImRect& r_avoid, ImGuiPopupPositionPolicy policy)
{
ImVec2 base_pos_clamped = ImClamp(ref_pos, r_outer.Min, r_outer.Max - size);
//GetForegroundDrawList()->AddRect(r_avoid.Min, r_avoid.Max, IM_COL32(255,0,0,255));
//GetForegroundDrawList()->AddRect(r_outer.Min, r_outer.Max, IM_COL32(0,255,0,255));
// Combo Box policy (we want a connecting edge)
if (policy == ImGuiPopupPositionPolicy_ComboBox)
{
const ImGuiDir dir_prefered_order[ImGuiDir_COUNT] = { ImGuiDir_Down, ImGuiDir_Right, ImGuiDir_Left, ImGuiDir_Up };
for (int n = (*last_dir != ImGuiDir_None) ? -1 : 0; n < ImGuiDir_COUNT; n++)
{
const ImGuiDir dir = (n == -1) ? *last_dir : dir_prefered_order[n];
if (n != -1 && dir == *last_dir) // Already tried this direction?
continue;
ImVec2 pos;
if (dir == ImGuiDir_Down) pos = ImVec2(r_avoid.Min.x, r_avoid.Max.y); // Below, Toward Right (default)
if (dir == ImGuiDir_Right) pos = ImVec2(r_avoid.Min.x, r_avoid.Min.y - size.y); // Above, Toward Right
if (dir == ImGuiDir_Left) pos = ImVec2(r_avoid.Max.x - size.x, r_avoid.Max.y); // Below, Toward Left
if (dir == ImGuiDir_Up) pos = ImVec2(r_avoid.Max.x - size.x, r_avoid.Min.y - size.y); // Above, Toward Left
if (!r_outer.Contains(ImRect(pos, pos + size)))
continue;
*last_dir = dir;
return pos;
}
}
// Tooltip and Default popup policy
// (Always first try the direction we used on the last frame, if any)
if (policy == ImGuiPopupPositionPolicy_Tooltip || policy == ImGuiPopupPositionPolicy_Default)
{
const ImGuiDir dir_prefered_order[ImGuiDir_COUNT] = { ImGuiDir_Right, ImGuiDir_Down, ImGuiDir_Up, ImGuiDir_Left };
for (int n = (*last_dir != ImGuiDir_None) ? -1 : 0; n < ImGuiDir_COUNT; n++)
{
const ImGuiDir dir = (n == -1) ? *last_dir : dir_prefered_order[n];
if (n != -1 && dir == *last_dir) // Already tried this direction?
continue;
const float avail_w = (dir == ImGuiDir_Left ? r_avoid.Min.x : r_outer.Max.x) - (dir == ImGuiDir_Right ? r_avoid.Max.x : r_outer.Min.x);
const float avail_h = (dir == ImGuiDir_Up ? r_avoid.Min.y : r_outer.Max.y) - (dir == ImGuiDir_Down ? r_avoid.Max.y : r_outer.Min.y);
// If there's not enough room on one axis, there's no point in positioning on a side on this axis (e.g. when not enough width, use a top/bottom position to maximize available width)
if (avail_w < size.x && (dir == ImGuiDir_Left || dir == ImGuiDir_Right))
continue;
if (avail_h < size.y && (dir == ImGuiDir_Up || dir == ImGuiDir_Down))
continue;
ImVec2 pos;
pos.x = (dir == ImGuiDir_Left) ? r_avoid.Min.x - size.x : (dir == ImGuiDir_Right) ? r_avoid.Max.x : base_pos_clamped.x;
pos.y = (dir == ImGuiDir_Up) ? r_avoid.Min.y - size.y : (dir == ImGuiDir_Down) ? r_avoid.Max.y : base_pos_clamped.y;
// Clamp top-left corner of popup
pos.x = ImMax(pos.x, r_outer.Min.x);
pos.y = ImMax(pos.y, r_outer.Min.y);
*last_dir = dir;
return pos;
}
}
// Fallback when not enough room:
*last_dir = ImGuiDir_None;
// For tooltip we prefer avoiding the cursor at all cost even if it means that part of the tooltip won't be visible.
if (policy == ImGuiPopupPositionPolicy_Tooltip)
return ref_pos + ImVec2(2, 2);
// Otherwise try to keep within display
ImVec2 pos = ref_pos;
pos.x = ImMax(ImMin(pos.x + size.x, r_outer.Max.x) - size.x, r_outer.Min.x);
pos.y = ImMax(ImMin(pos.y + size.y, r_outer.Max.y) - size.y, r_outer.Min.y);
return pos;
}
// Note that this is used for popups, which can overlap the non work-area of individual viewports.
ImRect ImGui::GetPopupAllowedExtentRect(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
IM_UNUSED(window);
ImRect r_screen = ((ImGuiViewportP*)(void*)GetMainViewport())->GetMainRect();
ImVec2 padding = g.Style.DisplaySafeAreaPadding;
r_screen.Expand(ImVec2((r_screen.GetWidth() > padding.x * 2) ? -padding.x : 0.0f, (r_screen.GetHeight() > padding.y * 2) ? -padding.y : 0.0f));
return r_screen;
}
ImVec2 ImGui::FindBestWindowPosForPopup(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
ImRect r_outer = GetPopupAllowedExtentRect(window);
if (window->Flags & ImGuiWindowFlags_ChildMenu)
{
// Child menus typically request _any_ position within the parent menu item, and then we move the new menu outside the parent bounds.
// This is how we end up with child menus appearing (most-commonly) on the right of the parent menu.
IM_ASSERT(g.CurrentWindow == window);
ImGuiWindow* parent_window = g.CurrentWindowStack[g.CurrentWindowStack.Size - 2].Window;
float horizontal_overlap = g.Style.ItemInnerSpacing.x; // We want some overlap to convey the relative depth of each menu (currently the amount of overlap is hard-coded to style.ItemSpacing.x).
ImRect r_avoid;
if (parent_window->DC.MenuBarAppending)
r_avoid = ImRect(-FLT_MAX, parent_window->ClipRect.Min.y, FLT_MAX, parent_window->ClipRect.Max.y); // Avoid parent menu-bar. If we wanted multi-line menu-bar, we may instead want to have the calling window setup e.g. a NextWindowData.PosConstraintAvoidRect field
else
r_avoid = ImRect(parent_window->Pos.x + horizontal_overlap, -FLT_MAX, parent_window->Pos.x + parent_window->Size.x - horizontal_overlap - parent_window->ScrollbarSizes.x, FLT_MAX);
return FindBestWindowPosForPopupEx(window->Pos, window->Size, &window->AutoPosLastDirection, r_outer, r_avoid, ImGuiPopupPositionPolicy_Default);
}
if (window->Flags & ImGuiWindowFlags_Popup)
{
return FindBestWindowPosForPopupEx(window->Pos, window->Size, &window->AutoPosLastDirection, r_outer, ImRect(window->Pos, window->Pos), ImGuiPopupPositionPolicy_Default); // Ideally we'd disable r_avoid here
}
if (window->Flags & ImGuiWindowFlags_Tooltip)
{
// Position tooltip (always follows mouse)
float sc = g.Style.MouseCursorScale;
ImVec2 ref_pos = NavCalcPreferredRefPos();
ImRect r_avoid;
if (!g.NavDisableHighlight && g.NavDisableMouseHover && !(g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos))
r_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 16, ref_pos.y + 8);
else
r_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 24 * sc, ref_pos.y + 24 * sc); // FIXME: Hard-coded based on mouse cursor shape expectation. Exact dimension not very important.
return FindBestWindowPosForPopupEx(ref_pos, window->Size, &window->AutoPosLastDirection, r_outer, r_avoid, ImGuiPopupPositionPolicy_Tooltip);
}
IM_ASSERT(0);
return window->Pos;
}
//-----------------------------------------------------------------------------
// [SECTION] KEYBOARD/GAMEPAD NAVIGATION
//-----------------------------------------------------------------------------
// FIXME-NAV: The existence of SetNavID vs SetFocusID vs FocusWindow() needs to be clarified/reworked.
// In our terminology those should be interchangeable, yet right now this is super confusing.
// Those two functions are merely a legacy artifact, so at minimum naming should be clarified.
void ImGui::SetNavWindow(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
if (g.NavWindow != window)
{
IMGUI_DEBUG_LOG_FOCUS("[focus] SetNavWindow(\"%s\")\n", window ? window->Name : "<NULL>");
g.NavWindow = window;
}
g.NavInitRequest = g.NavMoveSubmitted = g.NavMoveScoringItems = false;
NavUpdateAnyRequestFlag();
}
void ImGui::SetNavID(ImGuiID id, ImGuiNavLayer nav_layer, ImGuiID focus_scope_id, const ImRect& rect_rel)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.NavWindow != NULL);
IM_ASSERT(nav_layer == ImGuiNavLayer_Main || nav_layer == ImGuiNavLayer_Menu);
g.NavId = id;
g.NavLayer = nav_layer;
g.NavFocusScopeId = focus_scope_id;
g.NavWindow->NavLastIds[nav_layer] = id;
g.NavWindow->NavRectRel[nav_layer] = rect_rel;
}
void ImGui::SetFocusID(ImGuiID id, ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(id != 0);
if (g.NavWindow != window)
SetNavWindow(window);
// Assume that SetFocusID() is called in the context where its window->DC.NavLayerCurrent and g.CurrentFocusScopeId are valid.
// Note that window may be != g.CurrentWindow (e.g. SetFocusID call in InputTextEx for multi-line text)
const ImGuiNavLayer nav_layer = window->DC.NavLayerCurrent;
g.NavId = id;
g.NavLayer = nav_layer;
g.NavFocusScopeId = g.CurrentFocusScopeId;
window->NavLastIds[nav_layer] = id;
if (g.LastItemData.ID == id)
window->NavRectRel[nav_layer] = WindowRectAbsToRel(window, g.LastItemData.NavRect);
if (g.ActiveIdSource == ImGuiInputSource_Nav)
g.NavDisableMouseHover = true;
else
g.NavDisableHighlight = true;
}
ImGuiDir ImGetDirQuadrantFromDelta(float dx, float dy)
{
if (ImFabs(dx) > ImFabs(dy))
return (dx > 0.0f) ? ImGuiDir_Right : ImGuiDir_Left;
return (dy > 0.0f) ? ImGuiDir_Down : ImGuiDir_Up;
}
static float inline NavScoreItemDistInterval(float a0, float a1, float b0, float b1)
{
if (a1 < b0)
return a1 - b0;
if (b1 < a0)
return a0 - b1;
return 0.0f;
}
static void inline NavClampRectToVisibleAreaForMoveDir(ImGuiDir move_dir, ImRect& r, const ImRect& clip_rect)
{
if (move_dir == ImGuiDir_Left || move_dir == ImGuiDir_Right)
{
r.Min.y = ImClamp(r.Min.y, clip_rect.Min.y, clip_rect.Max.y);
r.Max.y = ImClamp(r.Max.y, clip_rect.Min.y, clip_rect.Max.y);
}
else // FIXME: PageUp/PageDown are leaving move_dir == None
{
r.Min.x = ImClamp(r.Min.x, clip_rect.Min.x, clip_rect.Max.x);
r.Max.x = ImClamp(r.Max.x, clip_rect.Min.x, clip_rect.Max.x);
}
}
// Scoring function for gamepad/keyboard directional navigation. Based on https://gist.github.com/rygorous/6981057
static bool ImGui::NavScoreItem(ImGuiNavItemData* result)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (g.NavLayer != window->DC.NavLayerCurrent)
return false;
// FIXME: Those are not good variables names
ImRect cand = g.LastItemData.NavRect; // Current item nav rectangle
const ImRect curr = g.NavScoringRect; // Current modified source rect (NB: we've applied Max.x = Min.x in NavUpdate() to inhibit the effect of having varied item width)
g.NavScoringDebugCount++;
// When entering through a NavFlattened border, we consider child window items as fully clipped for scoring
if (window->ParentWindow == g.NavWindow)
{
IM_ASSERT((window->Flags | g.NavWindow->Flags) & ImGuiWindowFlags_NavFlattened);
if (!window->ClipRect.Overlaps(cand))
return false;
cand.ClipWithFull(window->ClipRect); // This allows the scored item to not overlap other candidates in the parent window
}
// We perform scoring on items bounding box clipped by the current clipping rectangle on the other axis (clipping on our movement axis would give us equal scores for all clipped items)
// For example, this ensures that items in one column are not reached when moving vertically from items in another column.
NavClampRectToVisibleAreaForMoveDir(g.NavMoveClipDir, cand, window->ClipRect);
// Compute distance between boxes
// FIXME-NAV: Introducing biases for vertical navigation, needs to be removed.
float dbx = NavScoreItemDistInterval(cand.Min.x, cand.Max.x, curr.Min.x, curr.Max.x);
float dby = NavScoreItemDistInterval(ImLerp(cand.Min.y, cand.Max.y, 0.2f), ImLerp(cand.Min.y, cand.Max.y, 0.8f), ImLerp(curr.Min.y, curr.Max.y, 0.2f), ImLerp(curr.Min.y, curr.Max.y, 0.8f)); // Scale down on Y to keep using box-distance for vertically touching items
if (dby != 0.0f && dbx != 0.0f)
dbx = (dbx / 1000.0f) + ((dbx > 0.0f) ? +1.0f : -1.0f);
float dist_box = ImFabs(dbx) + ImFabs(dby);
// Compute distance between centers (this is off by a factor of 2, but we only compare center distances with each other so it doesn't matter)
float dcx = (cand.Min.x + cand.Max.x) - (curr.Min.x + curr.Max.x);
float dcy = (cand.Min.y + cand.Max.y) - (curr.Min.y + curr.Max.y);
float dist_center = ImFabs(dcx) + ImFabs(dcy); // L1 metric (need this for our connectedness guarantee)
// Determine which quadrant of 'curr' our candidate item 'cand' lies in based on distance
ImGuiDir quadrant;
float dax = 0.0f, day = 0.0f, dist_axial = 0.0f;
if (dbx != 0.0f || dby != 0.0f)
{
// For non-overlapping boxes, use distance between boxes
dax = dbx;
day = dby;
dist_axial = dist_box;
quadrant = ImGetDirQuadrantFromDelta(dbx, dby);
}
else if (dcx != 0.0f || dcy != 0.0f)
{
// For overlapping boxes with different centers, use distance between centers
dax = dcx;
day = dcy;
dist_axial = dist_center;
quadrant = ImGetDirQuadrantFromDelta(dcx, dcy);
}
else
{
// Degenerate case: two overlapping buttons with same center, break ties arbitrarily (note that LastItemId here is really the _previous_ item order, but it doesn't matter)
quadrant = (g.LastItemData.ID < g.NavId) ? ImGuiDir_Left : ImGuiDir_Right;
}
#if IMGUI_DEBUG_NAV_SCORING
char buf[128];
if (IsMouseHoveringRect(cand.Min, cand.Max))
{
ImFormatString(buf, IM_ARRAYSIZE(buf), "dbox (%.2f,%.2f->%.4f)\ndcen (%.2f,%.2f->%.4f)\nd (%.2f,%.2f->%.4f)\nnav %c, quadrant %c", dbx, dby, dist_box, dcx, dcy, dist_center, dax, day, dist_axial, "WENS"[g.NavMoveDir], "WENS"[quadrant]);
ImDrawList* draw_list = GetForegroundDrawList(window);
draw_list->AddRect(curr.Min, curr.Max, IM_COL32(255,200,0,100));
draw_list->AddRect(cand.Min, cand.Max, IM_COL32(255,255,0,200));
draw_list->AddRectFilled(cand.Max - ImVec2(4, 4), cand.Max + CalcTextSize(buf) + ImVec2(4, 4), IM_COL32(40,0,0,150));
draw_list->AddText(cand.Max, ~0U, buf);
}
else if (g.IO.KeyCtrl) // Hold to preview score in matching quadrant. Press C to rotate.
{
if (quadrant == g.NavMoveDir)
{
ImFormatString(buf, IM_ARRAYSIZE(buf), "%.0f/%.0f", dist_box, dist_center);
ImDrawList* draw_list = GetForegroundDrawList(window);
draw_list->AddRectFilled(cand.Min, cand.Max, IM_COL32(255, 0, 0, 200));
draw_list->AddText(cand.Min, IM_COL32(255, 255, 255, 255), buf);
}
}
#endif
// Is it in the quadrant we're interested in moving to?
bool new_best = false;
const ImGuiDir move_dir = g.NavMoveDir;
if (quadrant == move_dir)
{
// Does it beat the current best candidate?
if (dist_box < result->DistBox)
{
result->DistBox = dist_box;
result->DistCenter = dist_center;
return true;
}
if (dist_box == result->DistBox)
{
// Try using distance between center points to break ties
if (dist_center < result->DistCenter)
{
result->DistCenter = dist_center;
new_best = true;
}
else if (dist_center == result->DistCenter)
{
// Still tied! we need to be extra-careful to make sure everything gets linked properly. We consistently break ties by symbolically moving "later" items
// (with higher index) to the right/downwards by an infinitesimal amount since we the current "best" button already (so it must have a lower index),
// this is fairly easy. This rule ensures that all buttons with dx==dy==0 will end up being linked in order of appearance along the x axis.
if (((move_dir == ImGuiDir_Up || move_dir == ImGuiDir_Down) ? dby : dbx) < 0.0f) // moving bj to the right/down decreases distance
new_best = true;
}
}
}
// Axial check: if 'curr' has no link at all in some direction and 'cand' lies roughly in that direction, add a tentative link. This will only be kept if no "real" matches
// are found, so it only augments the graph produced by the above method using extra links. (important, since it doesn't guarantee strong connectedness)
// This is just to avoid buttons having no links in a particular direction when there's a suitable neighbor. you get good graphs without this too.
// 2017/09/29: FIXME: This now currently only enabled inside menu bars, ideally we'd disable it everywhere. Menus in particular need to catch failure. For general navigation it feels awkward.
// Disabling it may lead to disconnected graphs when nodes are very spaced out on different axis. Perhaps consider offering this as an option?
if (result->DistBox == FLT_MAX && dist_axial < result->DistAxial) // Check axial match
if (g.NavLayer == ImGuiNavLayer_Menu && !(g.NavWindow->Flags & ImGuiWindowFlags_ChildMenu))
if ((move_dir == ImGuiDir_Left && dax < 0.0f) || (move_dir == ImGuiDir_Right && dax > 0.0f) || (move_dir == ImGuiDir_Up && day < 0.0f) || (move_dir == ImGuiDir_Down && day > 0.0f))
{
result->DistAxial = dist_axial;
new_best = true;
}
return new_best;
}
static void ImGui::NavApplyItemToResult(ImGuiNavItemData* result)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
result->Window = window;
result->ID = g.LastItemData.ID;
result->FocusScopeId = g.CurrentFocusScopeId;
result->InFlags = g.LastItemData.InFlags;
result->RectRel = WindowRectAbsToRel(window, g.LastItemData.NavRect);
}
// We get there when either NavId == id, or when g.NavAnyRequest is set (which is updated by NavUpdateAnyRequestFlag above)
// This is called after LastItemData is set.
static void ImGui::NavProcessItem()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const ImGuiID id = g.LastItemData.ID;
const ImRect nav_bb = g.LastItemData.NavRect;
const ImGuiItemFlags item_flags = g.LastItemData.InFlags;
// Process Init Request
if (g.NavInitRequest && g.NavLayer == window->DC.NavLayerCurrent && (item_flags & ImGuiItemFlags_Disabled) == 0)
{
// Even if 'ImGuiItemFlags_NoNavDefaultFocus' is on (typically collapse/close button) we record the first ResultId so they can be used as a fallback
const bool candidate_for_nav_default_focus = (item_flags & ImGuiItemFlags_NoNavDefaultFocus) == 0;
if (candidate_for_nav_default_focus || g.NavInitResultId == 0)
{
g.NavInitResultId = id;
g.NavInitResultRectRel = WindowRectAbsToRel(window, nav_bb);
}
if (candidate_for_nav_default_focus)
{
g.NavInitRequest = false; // Found a match, clear request
NavUpdateAnyRequestFlag();
}
}
// Process Move Request (scoring for navigation)
// FIXME-NAV: Consider policy for double scoring (scoring from NavScoringRect + scoring from a rect wrapped according to current wrapping policy)
if (g.NavMoveScoringItems && (item_flags & ImGuiItemFlags_Disabled) == 0)
{
const bool is_tabbing = (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) != 0;
if (is_tabbing)
{
NavProcessItemForTabbingRequest(id, item_flags, g.NavMoveFlags);
}
else if (g.NavId != id || (g.NavMoveFlags & ImGuiNavMoveFlags_AllowCurrentNavId))
{
ImGuiNavItemData* result = (window == g.NavWindow) ? &g.NavMoveResultLocal : &g.NavMoveResultOther;
if (NavScoreItem(result))
NavApplyItemToResult(result);
// Features like PageUp/PageDown need to maintain a separate score for the visible set of items.
const float VISIBLE_RATIO = 0.70f;
if ((g.NavMoveFlags & ImGuiNavMoveFlags_AlsoScoreVisibleSet) && window->ClipRect.Overlaps(nav_bb))
if (ImClamp(nav_bb.Max.y, window->ClipRect.Min.y, window->ClipRect.Max.y) - ImClamp(nav_bb.Min.y, window->ClipRect.Min.y, window->ClipRect.Max.y) >= (nav_bb.Max.y - nav_bb.Min.y) * VISIBLE_RATIO)
if (NavScoreItem(&g.NavMoveResultLocalVisible))
NavApplyItemToResult(&g.NavMoveResultLocalVisible);
}
}
// Update window-relative bounding box of navigated item
if (g.NavId == id)
{
if (g.NavWindow != window)
SetNavWindow(window); // Always refresh g.NavWindow, because some operations such as FocusItem() may not have a window.
g.NavLayer = window->DC.NavLayerCurrent;
g.NavFocusScopeId = g.CurrentFocusScopeId;
g.NavIdIsAlive = true;
window->NavRectRel[window->DC.NavLayerCurrent] = WindowRectAbsToRel(window, nav_bb); // Store item bounding box (relative to window position)
}
}
// Handle "scoring" of an item for a tabbing/focusing request initiated by NavUpdateCreateTabbingRequest().
// Note that SetKeyboardFocusHere() API calls are considered tabbing requests!
// - Case 1: no nav/active id: set result to first eligible item, stop storing.
// - Case 2: tab forward: on ref id set counter, on counter elapse store result
// - Case 3: tab forward wrap: set result to first eligible item (preemptively), on ref id set counter, on next frame if counter hasn't elapsed store result. // FIXME-TABBING: Could be done as a next-frame forwarded request
// - Case 4: tab backward: store all results, on ref id pick prev, stop storing
// - Case 5: tab backward wrap: store all results, on ref id if no result keep storing until last // FIXME-TABBING: Could be done as next-frame forwarded requested
void ImGui::NavProcessItemForTabbingRequest(ImGuiID id, ImGuiItemFlags item_flags, ImGuiNavMoveFlags move_flags)
{
ImGuiContext& g = *GImGui;
if ((move_flags & ImGuiNavMoveFlags_FocusApi) == 0)
if (g.NavLayer != g.CurrentWindow->DC.NavLayerCurrent)
return;
// - Can always land on an item when using API call.
// - Tabbing with _NavEnableKeyboard (space/enter/arrows): goes through every item.
// - Tabbing without _NavEnableKeyboard: goes through inputable items only.
bool can_stop;
if (move_flags & ImGuiNavMoveFlags_FocusApi)
can_stop = true;
else
can_stop = (item_flags & ImGuiItemFlags_NoTabStop) == 0 && ((g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) || (item_flags & ImGuiItemFlags_Inputable));
// Always store in NavMoveResultLocal (unlike directional request which uses NavMoveResultOther on sibling/flattened windows)
ImGuiNavItemData* result = &g.NavMoveResultLocal;
if (g.NavTabbingDir == +1)
{
// Tab Forward or SetKeyboardFocusHere() with >= 0
if (can_stop && g.NavTabbingResultFirst.ID == 0)
NavApplyItemToResult(&g.NavTabbingResultFirst);
if (can_stop && g.NavTabbingCounter > 0 && --g.NavTabbingCounter == 0)
NavMoveRequestResolveWithLastItem(result);
else if (g.NavId == id)
g.NavTabbingCounter = 1;
}
else if (g.NavTabbingDir == -1)
{
// Tab Backward
if (g.NavId == id)
{
if (result->ID)
{
g.NavMoveScoringItems = false;
NavUpdateAnyRequestFlag();
}
}
else if (can_stop)
{
// Keep applying until reaching NavId
NavApplyItemToResult(result);
}
}
else if (g.NavTabbingDir == 0)
{
if (can_stop && g.NavId == id)
NavMoveRequestResolveWithLastItem(result);
if (can_stop && g.NavTabbingResultFirst.ID == 0) // Tab init
NavApplyItemToResult(&g.NavTabbingResultFirst);
}
}
bool ImGui::NavMoveRequestButNoResultYet()
{
ImGuiContext& g = *GImGui;
return g.NavMoveScoringItems && g.NavMoveResultLocal.ID == 0 && g.NavMoveResultOther.ID == 0;
}
// FIXME: ScoringRect is not set
void ImGui::NavMoveRequestSubmit(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.NavWindow != NULL);
if (move_flags & ImGuiNavMoveFlags_Tabbing)
move_flags |= ImGuiNavMoveFlags_AllowCurrentNavId;
g.NavMoveSubmitted = g.NavMoveScoringItems = true;
g.NavMoveDir = move_dir;
g.NavMoveDirForDebug = move_dir;
g.NavMoveClipDir = clip_dir;
g.NavMoveFlags = move_flags;
g.NavMoveScrollFlags = scroll_flags;
g.NavMoveForwardToNextFrame = false;
g.NavMoveKeyMods = g.IO.KeyMods;
g.NavMoveResultLocal.Clear();
g.NavMoveResultLocalVisible.Clear();
g.NavMoveResultOther.Clear();
g.NavTabbingCounter = 0;
g.NavTabbingResultFirst.Clear();
NavUpdateAnyRequestFlag();
}
void ImGui::NavMoveRequestResolveWithLastItem(ImGuiNavItemData* result)
{
ImGuiContext& g = *GImGui;
g.NavMoveScoringItems = false; // Ensure request doesn't need more processing
NavApplyItemToResult(result);
NavUpdateAnyRequestFlag();
}
void ImGui::NavMoveRequestCancel()
{
ImGuiContext& g = *GImGui;
g.NavMoveSubmitted = g.NavMoveScoringItems = false;
NavUpdateAnyRequestFlag();
}
// Forward will reuse the move request again on the next frame (generally with modifications done to it)
void ImGui::NavMoveRequestForward(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.NavMoveForwardToNextFrame == false);
NavMoveRequestCancel();
g.NavMoveForwardToNextFrame = true;
g.NavMoveDir = move_dir;
g.NavMoveClipDir = clip_dir;
g.NavMoveFlags = move_flags | ImGuiNavMoveFlags_Forwarded;
g.NavMoveScrollFlags = scroll_flags;
}
// Navigation wrap-around logic is delayed to the end of the frame because this operation is only valid after entire
// popup is assembled and in case of appended popups it is not clear which EndPopup() call is final.
void ImGui::NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags wrap_flags)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(wrap_flags != 0); // Call with _WrapX, _WrapY, _LoopX, _LoopY
// In theory we should test for NavMoveRequestButNoResultYet() but there's no point doing it, NavEndFrame() will do the same test
if (g.NavWindow == window && g.NavMoveScoringItems && g.NavLayer == ImGuiNavLayer_Main)
g.NavMoveFlags |= wrap_flags;
}
// FIXME: This could be replaced by updating a frame number in each window when (window == NavWindow) and (NavLayer == 0).
// This way we could find the last focused window among our children. It would be much less confusing this way?
static void ImGui::NavSaveLastChildNavWindowIntoParent(ImGuiWindow* nav_window)
{
ImGuiWindow* parent = nav_window;
while (parent && parent->RootWindow != parent && (parent->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu)) == 0)
parent = parent->ParentWindow;
if (parent && parent != nav_window)
parent->NavLastChildNavWindow = nav_window;
}
// Restore the last focused child.
// Call when we are expected to land on the Main Layer (0) after FocusWindow()
static ImGuiWindow* ImGui::NavRestoreLastChildNavWindow(ImGuiWindow* window)
{
if (window->NavLastChildNavWindow && window->NavLastChildNavWindow->WasActive)
return window->NavLastChildNavWindow;
return window;
}
void ImGui::NavRestoreLayer(ImGuiNavLayer layer)
{
ImGuiContext& g = *GImGui;
if (layer == ImGuiNavLayer_Main)
{
ImGuiWindow* prev_nav_window = g.NavWindow;
g.NavWindow = NavRestoreLastChildNavWindow(g.NavWindow); // FIXME-NAV: Should clear ongoing nav requests?
if (prev_nav_window)
IMGUI_DEBUG_LOG_FOCUS("[focus] NavRestoreLayer: from \"%s\" to SetNavWindow(\"%s\")\n", prev_nav_window->Name, g.NavWindow->Name);
}
ImGuiWindow* window = g.NavWindow;
if (window->NavLastIds[layer] != 0)
{
SetNavID(window->NavLastIds[layer], layer, 0, window->NavRectRel[layer]);
}
else
{
g.NavLayer = layer;
NavInitWindow(window, true);
}
}
void ImGui::NavRestoreHighlightAfterMove()
{
ImGuiContext& g = *GImGui;
g.NavDisableHighlight = false;
g.NavDisableMouseHover = g.NavMousePosDirty = true;
}
static inline void ImGui::NavUpdateAnyRequestFlag()
{
ImGuiContext& g = *GImGui;
g.NavAnyRequest = g.NavMoveScoringItems || g.NavInitRequest || (IMGUI_DEBUG_NAV_SCORING && g.NavWindow != NULL);
if (g.NavAnyRequest)
IM_ASSERT(g.NavWindow != NULL);
}
// This needs to be called before we submit any widget (aka in or before Begin)
void ImGui::NavInitWindow(ImGuiWindow* window, bool force_reinit)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(window == g.NavWindow);
if (window->Flags & ImGuiWindowFlags_NoNavInputs)
{
g.NavId = 0;
g.NavFocusScopeId = window->NavRootFocusScopeId;
return;
}
bool init_for_nav = false;
if (window == window->RootWindow || (window->Flags & ImGuiWindowFlags_Popup) || (window->NavLastIds[0] == 0) || force_reinit)
init_for_nav = true;
IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: from NavInitWindow(), init_for_nav=%d, window=\"%s\", layer=%d\n", init_for_nav, window->Name, g.NavLayer);
if (init_for_nav)
{
SetNavID(0, g.NavLayer, window->NavRootFocusScopeId, ImRect());
g.NavInitRequest = true;
g.NavInitRequestFromMove = false;
g.NavInitResultId = 0;
g.NavInitResultRectRel = ImRect();
NavUpdateAnyRequestFlag();
}
else
{
g.NavId = window->NavLastIds[0];
g.NavFocusScopeId = window->NavRootFocusScopeId;
}
}
static ImVec2 ImGui::NavCalcPreferredRefPos()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.NavWindow;
if (g.NavDisableHighlight || !g.NavDisableMouseHover || !window)
{
// Mouse (we need a fallback in case the mouse becomes invalid after being used)
// The +1.0f offset when stored by OpenPopupEx() allows reopening this or another popup (same or another mouse button) while not moving the mouse, it is pretty standard.
// In theory we could move that +1.0f offset in OpenPopupEx()
ImVec2 p = IsMousePosValid(&g.IO.MousePos) ? g.IO.MousePos : g.MouseLastValidPos;
return ImVec2(p.x + 1.0f, p.y);
}
else
{
// When navigation is active and mouse is disabled, pick a position around the bottom left of the currently navigated item
// Take account of upcoming scrolling (maybe set mouse pos should be done in EndFrame?)
ImRect rect_rel = WindowRectRelToAbs(window, window->NavRectRel[g.NavLayer]);
if (window->LastFrameActive != g.FrameCount && (window->ScrollTarget.x != FLT_MAX || window->ScrollTarget.y != FLT_MAX))
{
ImVec2 next_scroll = CalcNextScrollFromScrollTargetAndClamp(window);
rect_rel.Translate(window->Scroll - next_scroll);
}
ImVec2 pos = ImVec2(rect_rel.Min.x + ImMin(g.Style.FramePadding.x * 4, rect_rel.GetWidth()), rect_rel.Max.y - ImMin(g.Style.FramePadding.y, rect_rel.GetHeight()));
ImGuiViewport* viewport = GetMainViewport();
return ImFloor(ImClamp(pos, viewport->Pos, viewport->Pos + viewport->Size)); // ImFloor() is important because non-integer mouse position application in backend might be lossy and result in undesirable non-zero delta.
}
}
float ImGui::GetNavTweakPressedAmount(ImGuiAxis axis)
{
ImGuiContext& g = *GImGui;
float repeat_delay, repeat_rate;
GetTypematicRepeatRate(ImGuiInputFlags_RepeatRateNavTweak, &repeat_delay, &repeat_rate);
ImGuiKey key_less, key_more;
if (g.NavInputSource == ImGuiInputSource_Gamepad)
{
key_less = (axis == ImGuiAxis_X) ? ImGuiKey_GamepadDpadLeft : ImGuiKey_GamepadDpadUp;
key_more = (axis == ImGuiAxis_X) ? ImGuiKey_GamepadDpadRight : ImGuiKey_GamepadDpadDown;
}
else
{
key_less = (axis == ImGuiAxis_X) ? ImGuiKey_LeftArrow : ImGuiKey_UpArrow;
key_more = (axis == ImGuiAxis_X) ? ImGuiKey_RightArrow : ImGuiKey_DownArrow;
}
float amount = (float)GetKeyPressedAmount(key_more, repeat_delay, repeat_rate) - (float)GetKeyPressedAmount(key_less, repeat_delay, repeat_rate);
if (amount != 0.0f && IsKeyDown(key_less) && IsKeyDown(key_more)) // Cancel when opposite directions are held, regardless of repeat phase
amount = 0.0f;
return amount;
}
static void ImGui::NavUpdate()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
io.WantSetMousePos = false;
//if (g.NavScoringDebugCount > 0) IMGUI_DEBUG_LOG_NAV("[nav] NavScoringDebugCount %d for '%s' layer %d (Init:%d, Move:%d)\n", g.NavScoringDebugCount, g.NavWindow ? g.NavWindow->Name : "NULL", g.NavLayer, g.NavInitRequest || g.NavInitResultId != 0, g.NavMoveRequest);
// Set input source based on which keys are last pressed (as some features differs when used with Gamepad vs Keyboard)
// FIXME-NAV: Now that keys are separated maybe we can get rid of NavInputSource?
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
const ImGuiKey nav_gamepad_keys_to_change_source[] = { ImGuiKey_GamepadFaceRight, ImGuiKey_GamepadFaceLeft, ImGuiKey_GamepadFaceUp, ImGuiKey_GamepadFaceDown, ImGuiKey_GamepadDpadRight, ImGuiKey_GamepadDpadLeft, ImGuiKey_GamepadDpadUp, ImGuiKey_GamepadDpadDown };
if (nav_gamepad_active)
for (ImGuiKey key : nav_gamepad_keys_to_change_source)
if (IsKeyDown(key))
g.NavInputSource = ImGuiInputSource_Gamepad;
const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
const ImGuiKey nav_keyboard_keys_to_change_source[] = { ImGuiKey_Space, ImGuiKey_Enter, ImGuiKey_Escape, ImGuiKey_RightArrow, ImGuiKey_LeftArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow };
if (nav_keyboard_active)
for (ImGuiKey key : nav_keyboard_keys_to_change_source)
if (IsKeyDown(key))
g.NavInputSource = ImGuiInputSource_Keyboard;
// Process navigation init request (select first/default focus)
if (g.NavInitResultId != 0)
NavInitRequestApplyResult();
g.NavInitRequest = false;
g.NavInitRequestFromMove = false;
g.NavInitResultId = 0;
g.NavJustMovedToId = 0;
// Process navigation move request
if (g.NavMoveSubmitted)
NavMoveRequestApplyResult();
g.NavTabbingCounter = 0;
g.NavMoveSubmitted = g.NavMoveScoringItems = false;
// Schedule mouse position update (will be done at the bottom of this function, after 1) processing all move requests and 2) updating scrolling)
bool set_mouse_pos = false;
if (g.NavMousePosDirty && g.NavIdIsAlive)
if (!g.NavDisableHighlight && g.NavDisableMouseHover && g.NavWindow)
set_mouse_pos = true;
g.NavMousePosDirty = false;
IM_ASSERT(g.NavLayer == ImGuiNavLayer_Main || g.NavLayer == ImGuiNavLayer_Menu);
// Store our return window (for returning from Menu Layer to Main Layer) and clear it as soon as we step back in our own Layer 0
if (g.NavWindow)
NavSaveLastChildNavWindowIntoParent(g.NavWindow);
if (g.NavWindow && g.NavWindow->NavLastChildNavWindow != NULL && g.NavLayer == ImGuiNavLayer_Main)
g.NavWindow->NavLastChildNavWindow = NULL;
// Update CTRL+TAB and Windowing features (hold Square to move/resize/etc.)
NavUpdateWindowing();
// Set output flags for user application
io.NavActive = (nav_keyboard_active || nav_gamepad_active) && g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs);
io.NavVisible = (io.NavActive && g.NavId != 0 && !g.NavDisableHighlight) || (g.NavWindowingTarget != NULL);
// Process NavCancel input (to close a popup, get back to parent, clear focus)
NavUpdateCancelRequest();
// Process manual activation request
g.NavActivateId = g.NavActivateDownId = g.NavActivatePressedId = 0;
g.NavActivateFlags = ImGuiActivateFlags_None;
if (g.NavId != 0 && !g.NavDisableHighlight && !g.NavWindowingTarget && g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs))
{
const bool activate_down = (nav_keyboard_active && IsKeyDown(ImGuiKey_Space)) || (nav_gamepad_active && IsKeyDown(ImGuiKey_NavGamepadActivate));
const bool activate_pressed = activate_down && ((nav_keyboard_active && IsKeyPressed(ImGuiKey_Space, false)) || (nav_gamepad_active && IsKeyPressed(ImGuiKey_NavGamepadActivate, false)));
const bool input_down = (nav_keyboard_active && IsKeyDown(ImGuiKey_Enter)) || (nav_gamepad_active && IsKeyDown(ImGuiKey_NavGamepadInput));
const bool input_pressed = input_down && ((nav_keyboard_active && IsKeyPressed(ImGuiKey_Enter, false)) || (nav_gamepad_active && IsKeyPressed(ImGuiKey_NavGamepadInput, false)));
if (g.ActiveId == 0 && activate_pressed)
{
g.NavActivateId = g.NavId;
g.NavActivateFlags = ImGuiActivateFlags_PreferTweak;
}
if ((g.ActiveId == 0 || g.ActiveId == g.NavId) && input_pressed)
{
g.NavActivateId = g.NavId;
g.NavActivateFlags = ImGuiActivateFlags_PreferInput;
}
if ((g.ActiveId == 0 || g.ActiveId == g.NavId) && (activate_down || input_down))
g.NavActivateDownId = g.NavId;
if ((g.ActiveId == 0 || g.ActiveId == g.NavId) && (activate_pressed || input_pressed))
g.NavActivatePressedId = g.NavId;
}
if (g.NavWindow && (g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs))
g.NavDisableHighlight = true;
if (g.NavActivateId != 0)
IM_ASSERT(g.NavActivateDownId == g.NavActivateId);
// Process programmatic activation request
// FIXME-NAV: Those should eventually be queued (unlike focus they don't cancel each others)
if (g.NavNextActivateId != 0)
{
g.NavActivateId = g.NavActivateDownId = g.NavActivatePressedId = g.NavNextActivateId;
g.NavActivateFlags = g.NavNextActivateFlags;
}
g.NavNextActivateId = 0;
// Process move requests
NavUpdateCreateMoveRequest();
if (g.NavMoveDir == ImGuiDir_None)
NavUpdateCreateTabbingRequest();
NavUpdateAnyRequestFlag();
g.NavIdIsAlive = false;
// Scrolling
if (g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs) && !g.NavWindowingTarget)
{
// *Fallback* manual-scroll with Nav directional keys when window has no navigable item
ImGuiWindow* window = g.NavWindow;
const float scroll_speed = IM_ROUND(window->CalcFontSize() * 100 * io.DeltaTime); // We need round the scrolling speed because sub-pixel scroll isn't reliably supported.
const ImGuiDir move_dir = g.NavMoveDir;
if (window->DC.NavLayersActiveMask == 0x00 && window->DC.NavHasScroll && move_dir != ImGuiDir_None)
{
if (move_dir == ImGuiDir_Left || move_dir == ImGuiDir_Right)
SetScrollX(window, ImFloor(window->Scroll.x + ((move_dir == ImGuiDir_Left) ? -1.0f : +1.0f) * scroll_speed));
if (move_dir == ImGuiDir_Up || move_dir == ImGuiDir_Down)
SetScrollY(window, ImFloor(window->Scroll.y + ((move_dir == ImGuiDir_Up) ? -1.0f : +1.0f) * scroll_speed));
}
// *Normal* Manual scroll with LStick
// Next movement request will clamp the NavId reference rectangle to the visible area, so navigation will resume within those bounds.
if (nav_gamepad_active)
{
const ImVec2 scroll_dir = GetKeyMagnitude2d(ImGuiKey_GamepadLStickLeft, ImGuiKey_GamepadLStickRight, ImGuiKey_GamepadLStickUp, ImGuiKey_GamepadLStickDown);
const float tweak_factor = IsKeyDown(ImGuiKey_NavGamepadTweakSlow) ? 1.0f / 10.0f : IsKeyDown(ImGuiKey_NavGamepadTweakFast) ? 10.0f : 1.0f;
if (scroll_dir.x != 0.0f && window->ScrollbarX)
SetScrollX(window, ImFloor(window->Scroll.x + scroll_dir.x * scroll_speed * tweak_factor));
if (scroll_dir.y != 0.0f)
SetScrollY(window, ImFloor(window->Scroll.y + scroll_dir.y * scroll_speed * tweak_factor));
}
}
// Always prioritize mouse highlight if navigation is disabled
if (!nav_keyboard_active && !nav_gamepad_active)
{
g.NavDisableHighlight = true;
g.NavDisableMouseHover = set_mouse_pos = false;
}
// Update mouse position if requested
// (This will take into account the possibility that a Scroll was queued in the window to offset our absolute mouse position before scroll has been applied)
if (set_mouse_pos && (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) && (io.BackendFlags & ImGuiBackendFlags_HasSetMousePos))
{
io.MousePos = io.MousePosPrev = NavCalcPreferredRefPos();
io.WantSetMousePos = true;
//IMGUI_DEBUG_LOG_IO("SetMousePos: (%.1f,%.1f)\n", io.MousePos.x, io.MousePos.y);
}
// [DEBUG]
g.NavScoringDebugCount = 0;
#if IMGUI_DEBUG_NAV_RECTS
if (g.NavWindow)
{
ImDrawList* draw_list = GetForegroundDrawList(g.NavWindow);
if (1) { for (int layer = 0; layer < 2; layer++) { ImRect r = WindowRectRelToAbs(g.NavWindow, g.NavWindow->NavRectRel[layer]); draw_list->AddRect(r.Min, r.Max, IM_COL32(255,200,0,255)); } } // [DEBUG]
if (1) { ImU32 col = (!g.NavWindow->Hidden) ? IM_COL32(255,0,255,255) : IM_COL32(255,0,0,255); ImVec2 p = NavCalcPreferredRefPos(); char buf[32]; ImFormatString(buf, 32, "%d", g.NavLayer); draw_list->AddCircleFilled(p, 3.0f, col); draw_list->AddText(NULL, 13.0f, p + ImVec2(8,-4), col, buf); }
}
#endif
}
void ImGui::NavInitRequestApplyResult()
{
// In very rare cases g.NavWindow may be null (e.g. clearing focus after requesting an init request, which does happen when releasing Alt while clicking on void)
ImGuiContext& g = *GImGui;
if (!g.NavWindow)
return;
// Apply result from previous navigation init request (will typically select the first item, unless SetItemDefaultFocus() has been called)
// FIXME-NAV: On _NavFlattened windows, g.NavWindow will only be updated during subsequent frame. Not a problem currently.
IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: ApplyResult: NavID 0x%08X in Layer %d Window \"%s\"\n", g.NavInitResultId, g.NavLayer, g.NavWindow->Name);
SetNavID(g.NavInitResultId, g.NavLayer, 0, g.NavInitResultRectRel);
g.NavIdIsAlive = true; // Mark as alive from previous frame as we got a result
if (g.NavInitRequestFromMove)
NavRestoreHighlightAfterMove();
}
void ImGui::NavUpdateCreateMoveRequest()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
ImGuiWindow* window = g.NavWindow;
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
if (g.NavMoveForwardToNextFrame && window != NULL)
{
// Forwarding previous request (which has been modified, e.g. wrap around menus rewrite the requests with a starting rectangle at the other side of the window)
// (preserve most state, which were already set by the NavMoveRequestForward() function)
IM_ASSERT(g.NavMoveDir != ImGuiDir_None && g.NavMoveClipDir != ImGuiDir_None);
IM_ASSERT(g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded);
IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequestForward %d\n", g.NavMoveDir);
}
else
{
// Initiate directional inputs request
g.NavMoveDir = ImGuiDir_None;
g.NavMoveFlags = ImGuiNavMoveFlags_None;
g.NavMoveScrollFlags = ImGuiScrollFlags_None;
if (window && !g.NavWindowingTarget && !(window->Flags & ImGuiWindowFlags_NoNavInputs))
{
const ImGuiInputFlags repeat_mode = ImGuiInputFlags_Repeat | (ImGuiInputFlags)ImGuiInputFlags_RepeatRateNavMove;
if (!IsActiveIdUsingNavDir(ImGuiDir_Left) && ((nav_gamepad_active && IsKeyPressed(ImGuiKey_GamepadDpadLeft, ImGuiKeyOwner_None, repeat_mode)) || (nav_keyboard_active && IsKeyPressed(ImGuiKey_LeftArrow, ImGuiKeyOwner_None, repeat_mode)))) { g.NavMoveDir = ImGuiDir_Left; }
if (!IsActiveIdUsingNavDir(ImGuiDir_Right) && ((nav_gamepad_active && IsKeyPressed(ImGuiKey_GamepadDpadRight, ImGuiKeyOwner_None, repeat_mode)) || (nav_keyboard_active && IsKeyPressed(ImGuiKey_RightArrow, ImGuiKeyOwner_None, repeat_mode)))) { g.NavMoveDir = ImGuiDir_Right; }
if (!IsActiveIdUsingNavDir(ImGuiDir_Up) && ((nav_gamepad_active && IsKeyPressed(ImGuiKey_GamepadDpadUp, ImGuiKeyOwner_None, repeat_mode)) || (nav_keyboard_active && IsKeyPressed(ImGuiKey_UpArrow, ImGuiKeyOwner_None, repeat_mode)))) { g.NavMoveDir = ImGuiDir_Up; }
if (!IsActiveIdUsingNavDir(ImGuiDir_Down) && ((nav_gamepad_active && IsKeyPressed(ImGuiKey_GamepadDpadDown, ImGuiKeyOwner_None, repeat_mode)) || (nav_keyboard_active && IsKeyPressed(ImGuiKey_DownArrow, ImGuiKeyOwner_None, repeat_mode)))) { g.NavMoveDir = ImGuiDir_Down; }
}
g.NavMoveClipDir = g.NavMoveDir;
g.NavScoringNoClipRect = ImRect(+FLT_MAX, +FLT_MAX, -FLT_MAX, -FLT_MAX);
}
// Update PageUp/PageDown/Home/End scroll
// FIXME-NAV: Consider enabling those keys even without the master ImGuiConfigFlags_NavEnableKeyboard flag?
float scoring_rect_offset_y = 0.0f;
if (window && g.NavMoveDir == ImGuiDir_None && nav_keyboard_active)
scoring_rect_offset_y = NavUpdatePageUpPageDown();
if (scoring_rect_offset_y != 0.0f)
{
g.NavScoringNoClipRect = window->InnerRect;
g.NavScoringNoClipRect.TranslateY(scoring_rect_offset_y);
}
// [DEBUG] Always send a request
#if IMGUI_DEBUG_NAV_SCORING
if (io.KeyCtrl && IsKeyPressed(ImGuiKey_C))
g.NavMoveDirForDebug = (ImGuiDir)((g.NavMoveDirForDebug + 1) & 3);
if (io.KeyCtrl && g.NavMoveDir == ImGuiDir_None)
{
g.NavMoveDir = g.NavMoveDirForDebug;
g.NavMoveFlags |= ImGuiNavMoveFlags_DebugNoResult;
}
#endif
// Submit
g.NavMoveForwardToNextFrame = false;
if (g.NavMoveDir != ImGuiDir_None)
NavMoveRequestSubmit(g.NavMoveDir, g.NavMoveClipDir, g.NavMoveFlags, g.NavMoveScrollFlags);
// Moving with no reference triggers an init request (will be used as a fallback if the direction fails to find a match)
if (g.NavMoveSubmitted && g.NavId == 0)
{
IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: from move, window \"%s\", layer=%d\n", window ? window->Name : "<NULL>", g.NavLayer);
g.NavInitRequest = g.NavInitRequestFromMove = true;
g.NavInitResultId = 0;
g.NavDisableHighlight = false;
}
// When using gamepad, we project the reference nav bounding box into window visible area.
// This is to allow resuming navigation inside the visible area after doing a large amount of scrolling,
// since with gamepad all movements are relative (can't focus a visible object like we can with the mouse).
if (g.NavMoveSubmitted && g.NavInputSource == ImGuiInputSource_Gamepad && g.NavLayer == ImGuiNavLayer_Main && window != NULL)// && (g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded))
{
bool clamp_x = (g.NavMoveFlags & (ImGuiNavMoveFlags_LoopX | ImGuiNavMoveFlags_WrapX)) == 0;
bool clamp_y = (g.NavMoveFlags & (ImGuiNavMoveFlags_LoopY | ImGuiNavMoveFlags_WrapY)) == 0;
ImRect inner_rect_rel = WindowRectAbsToRel(window, ImRect(window->InnerRect.Min - ImVec2(1, 1), window->InnerRect.Max + ImVec2(1, 1)));
// Take account of changing scroll to handle triggering a new move request on a scrolling frame. (#6171)
// Otherwise 'inner_rect_rel' would be off on the move result frame.
inner_rect_rel.Translate(CalcNextScrollFromScrollTargetAndClamp(window) - window->Scroll);
if ((clamp_x || clamp_y) && !inner_rect_rel.Contains(window->NavRectRel[g.NavLayer]))
{
IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequest: clamp NavRectRel for gamepad move\n");
float pad_x = ImMin(inner_rect_rel.GetWidth(), window->CalcFontSize() * 0.5f);
float pad_y = ImMin(inner_rect_rel.GetHeight(), window->CalcFontSize() * 0.5f); // Terrible approximation for the intent of starting navigation from first fully visible item
inner_rect_rel.Min.x = clamp_x ? (inner_rect_rel.Min.x + pad_x) : -FLT_MAX;
inner_rect_rel.Max.x = clamp_x ? (inner_rect_rel.Max.x - pad_x) : +FLT_MAX;
inner_rect_rel.Min.y = clamp_y ? (inner_rect_rel.Min.y + pad_y) : -FLT_MAX;
inner_rect_rel.Max.y = clamp_y ? (inner_rect_rel.Max.y - pad_y) : +FLT_MAX;
window->NavRectRel[g.NavLayer].ClipWithFull(inner_rect_rel);
g.NavId = 0;
}
}
// For scoring we use a single segment on the left side our current item bounding box (not touching the edge to avoid box overlap with zero-spaced items)
ImRect scoring_rect;
if (window != NULL)
{
ImRect nav_rect_rel = !window->NavRectRel[g.NavLayer].IsInverted() ? window->NavRectRel[g.NavLayer] : ImRect(0, 0, 0, 0);
scoring_rect = WindowRectRelToAbs(window, nav_rect_rel);
scoring_rect.TranslateY(scoring_rect_offset_y);
scoring_rect.Min.x = ImMin(scoring_rect.Min.x + 1.0f, scoring_rect.Max.x);
scoring_rect.Max.x = scoring_rect.Min.x;
IM_ASSERT(!scoring_rect.IsInverted()); // Ensure if we have a finite, non-inverted bounding box here will allow us to remove extraneous ImFabs() calls in NavScoreItem().
//GetForegroundDrawList()->AddRect(scoring_rect.Min, scoring_rect.Max, IM_COL32(255,200,0,255)); // [DEBUG]
//if (!g.NavScoringNoClipRect.IsInverted()) { GetForegroundDrawList()->AddRect(g.NavScoringNoClipRect.Min, g.NavScoringNoClipRect.Max, IM_COL32(255, 200, 0, 255)); } // [DEBUG]
}
g.NavScoringRect = scoring_rect;
g.NavScoringNoClipRect.Add(scoring_rect);
}
void ImGui::NavUpdateCreateTabbingRequest()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.NavWindow;
IM_ASSERT(g.NavMoveDir == ImGuiDir_None);
if (window == NULL || g.NavWindowingTarget != NULL || (window->Flags & ImGuiWindowFlags_NoNavInputs))
return;
const bool tab_pressed = IsKeyPressed(ImGuiKey_Tab, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat) && !g.IO.KeyCtrl && !g.IO.KeyAlt;
if (!tab_pressed)
return;
// Initiate tabbing request
// (this is ALWAYS ENABLED, regardless of ImGuiConfigFlags_NavEnableKeyboard flag!)
// Initially this was designed to use counters and modulo arithmetic, but that could not work with unsubmitted items (list clipper). Instead we use a strategy close to other move requests.
// See NavProcessItemForTabbingRequest() for a description of the various forward/backward tabbing cases with and without wrapping.
const bool nav_keyboard_active = (g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
if (nav_keyboard_active)
g.NavTabbingDir = g.IO.KeyShift ? -1 : (g.NavDisableHighlight == true && g.ActiveId == 0) ? 0 : +1;
else
g.NavTabbingDir = g.IO.KeyShift ? -1 : (g.ActiveId == 0) ? 0 : +1;
ImGuiScrollFlags scroll_flags = window->Appearing ? ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleEdgeY;
ImGuiDir clip_dir = (g.NavTabbingDir < 0) ? ImGuiDir_Up : ImGuiDir_Down;
NavMoveRequestSubmit(ImGuiDir_None, clip_dir, ImGuiNavMoveFlags_Tabbing, scroll_flags); // FIXME-NAV: Once we refactor tabbing, add LegacyApi flag to not activate non-inputable.
g.NavTabbingCounter = -1;
}
// Apply result from previous frame navigation directional move request. Always called from NavUpdate()
void ImGui::NavMoveRequestApplyResult()
{
ImGuiContext& g = *GImGui;
#if IMGUI_DEBUG_NAV_SCORING
if (g.NavMoveFlags & ImGuiNavMoveFlags_DebugNoResult) // [DEBUG] Scoring all items in NavWindow at all times
return;
#endif
// Select which result to use
ImGuiNavItemData* result = (g.NavMoveResultLocal.ID != 0) ? &g.NavMoveResultLocal : (g.NavMoveResultOther.ID != 0) ? &g.NavMoveResultOther : NULL;
// Tabbing forward wrap
if ((g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) && result == NULL)
if ((g.NavTabbingCounter == 1 || g.NavTabbingDir == 0) && g.NavTabbingResultFirst.ID)
result = &g.NavTabbingResultFirst;
// In a situation when there are no results but NavId != 0, re-enable the Navigation highlight (because g.NavId is not considered as a possible result)
if (result == NULL)
{
if (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing)
g.NavMoveFlags |= ImGuiNavMoveFlags_DontSetNavHighlight;
if (g.NavId != 0 && (g.NavMoveFlags & ImGuiNavMoveFlags_DontSetNavHighlight) == 0)
NavRestoreHighlightAfterMove();
return;
}
// PageUp/PageDown behavior first jumps to the bottom/top mostly visible item, _otherwise_ use the result from the previous/next page.
if (g.NavMoveFlags & ImGuiNavMoveFlags_AlsoScoreVisibleSet)
if (g.NavMoveResultLocalVisible.ID != 0 && g.NavMoveResultLocalVisible.ID != g.NavId)
result = &g.NavMoveResultLocalVisible;
// Maybe entering a flattened child from the outside? In this case solve the tie using the regular scoring rules.
if (result != &g.NavMoveResultOther && g.NavMoveResultOther.ID != 0 && g.NavMoveResultOther.Window->ParentWindow == g.NavWindow)
if ((g.NavMoveResultOther.DistBox < result->DistBox) || (g.NavMoveResultOther.DistBox == result->DistBox && g.NavMoveResultOther.DistCenter < result->DistCenter))
result = &g.NavMoveResultOther;
IM_ASSERT(g.NavWindow && result->Window);
// Scroll to keep newly navigated item fully into view.
if (g.NavLayer == ImGuiNavLayer_Main)
{
if (g.NavMoveFlags & ImGuiNavMoveFlags_ScrollToEdgeY)
{
// FIXME: Should remove this
float scroll_target = (g.NavMoveDir == ImGuiDir_Up) ? result->Window->ScrollMax.y : 0.0f;
SetScrollY(result->Window, scroll_target);
}
else
{
ImRect rect_abs = WindowRectRelToAbs(result->Window, result->RectRel);
ScrollToRectEx(result->Window, rect_abs, g.NavMoveScrollFlags);
}
}
if (g.NavWindow != result->Window)
{
IMGUI_DEBUG_LOG_FOCUS("[focus] NavMoveRequest: SetNavWindow(\"%s\")\n", result->Window->Name);
g.NavWindow = result->Window;
}
if (g.ActiveId != result->ID)
ClearActiveID();
if (g.NavId != result->ID)
{
// Don't set NavJustMovedToId if just landed on the same spot (which may happen with ImGuiNavMoveFlags_AllowCurrentNavId)
g.NavJustMovedToId = result->ID;
g.NavJustMovedToFocusScopeId = result->FocusScopeId;
g.NavJustMovedToKeyMods = g.NavMoveKeyMods;
}
// Focus
IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequest: result NavID 0x%08X in Layer %d Window \"%s\"\n", result->ID, g.NavLayer, g.NavWindow->Name);
SetNavID(result->ID, g.NavLayer, result->FocusScopeId, result->RectRel);
// Tabbing: Activates Inputable or Focus non-Inputable
if ((g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) && (result->InFlags & ImGuiItemFlags_Inputable))
{
g.NavNextActivateId = result->ID;
g.NavNextActivateFlags = ImGuiActivateFlags_PreferInput | ImGuiActivateFlags_TryToPreserveState;
g.NavMoveFlags |= ImGuiNavMoveFlags_DontSetNavHighlight;
}
// Activate
if (g.NavMoveFlags & ImGuiNavMoveFlags_Activate)
{
g.NavNextActivateId = result->ID;
g.NavNextActivateFlags = ImGuiActivateFlags_None;
}
// Enable nav highlight
if ((g.NavMoveFlags & ImGuiNavMoveFlags_DontSetNavHighlight) == 0)
NavRestoreHighlightAfterMove();
}
// Process NavCancel input (to close a popup, get back to parent, clear focus)
// FIXME: In order to support e.g. Escape to clear a selection we'll need:
// - either to store the equivalent of ActiveIdUsingKeyInputMask for a FocusScope and test for it.
// - either to move most/all of those tests to the epilogue/end functions of the scope they are dealing with (e.g. exit child window in EndChild()) or in EndFrame(), to allow an earlier intercept
static void ImGui::NavUpdateCancelRequest()
{
ImGuiContext& g = *GImGui;
const bool nav_gamepad_active = (g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (g.IO.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
const bool nav_keyboard_active = (g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
if (!(nav_keyboard_active && IsKeyPressed(ImGuiKey_Escape, ImGuiKeyOwner_None)) && !(nav_gamepad_active && IsKeyPressed(ImGuiKey_NavGamepadCancel, ImGuiKeyOwner_None)))
return;
IMGUI_DEBUG_LOG_NAV("[nav] NavUpdateCancelRequest()\n");
if (g.ActiveId != 0)
{
ClearActiveID();
}
else if (g.NavLayer != ImGuiNavLayer_Main)
{
// Leave the "menu" layer
NavRestoreLayer(ImGuiNavLayer_Main);
NavRestoreHighlightAfterMove();
}
else if (g.NavWindow && g.NavWindow != g.NavWindow->RootWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_Popup) && g.NavWindow->ParentWindow)
{
// Exit child window
ImGuiWindow* child_window = g.NavWindow;
ImGuiWindow* parent_window = g.NavWindow->ParentWindow;
IM_ASSERT(child_window->ChildId != 0);
ImRect child_rect = child_window->Rect();
FocusWindow(parent_window);
SetNavID(child_window->ChildId, ImGuiNavLayer_Main, 0, WindowRectAbsToRel(parent_window, child_rect));
NavRestoreHighlightAfterMove();
}
else if (g.OpenPopupStack.Size > 0 && g.OpenPopupStack.back().Window != NULL && !(g.OpenPopupStack.back().Window->Flags & ImGuiWindowFlags_Modal))
{
// Close open popup/menu
ClosePopupToLevel(g.OpenPopupStack.Size - 1, true);
}
else
{
// Clear NavLastId for popups but keep it for regular child window so we can leave one and come back where we were
if (g.NavWindow && ((g.NavWindow->Flags & ImGuiWindowFlags_Popup) || !(g.NavWindow->Flags & ImGuiWindowFlags_ChildWindow)))
g.NavWindow->NavLastIds[0] = 0;
g.NavId = 0;
}
}
// Handle PageUp/PageDown/Home/End keys
// Called from NavUpdateCreateMoveRequest() which will use our output to create a move request
// FIXME-NAV: This doesn't work properly with NavFlattened siblings as we use NavWindow rectangle for reference
// FIXME-NAV: how to get Home/End to aim at the beginning/end of a 2D grid?
static float ImGui::NavUpdatePageUpPageDown()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.NavWindow;
if ((window->Flags & ImGuiWindowFlags_NoNavInputs) || g.NavWindowingTarget != NULL)
return 0.0f;
const bool page_up_held = IsKeyDown(ImGuiKey_PageUp, ImGuiKeyOwner_None);
const bool page_down_held = IsKeyDown(ImGuiKey_PageDown, ImGuiKeyOwner_None);
const bool home_pressed = IsKeyPressed(ImGuiKey_Home, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat);
const bool end_pressed = IsKeyPressed(ImGuiKey_End, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat);
if (page_up_held == page_down_held && home_pressed == end_pressed) // Proceed if either (not both) are pressed, otherwise early out
return 0.0f;
if (g.NavLayer != ImGuiNavLayer_Main)
NavRestoreLayer(ImGuiNavLayer_Main);
if (window->DC.NavLayersActiveMask == 0x00 && window->DC.NavHasScroll)
{
// Fallback manual-scroll when window has no navigable item
if (IsKeyPressed(ImGuiKey_PageUp, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat))
SetScrollY(window, window->Scroll.y - window->InnerRect.GetHeight());
else if (IsKeyPressed(ImGuiKey_PageDown, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat))
SetScrollY(window, window->Scroll.y + window->InnerRect.GetHeight());
else if (home_pressed)
SetScrollY(window, 0.0f);
else if (end_pressed)
SetScrollY(window, window->ScrollMax.y);
}
else
{
ImRect& nav_rect_rel = window->NavRectRel[g.NavLayer];
const float page_offset_y = ImMax(0.0f, window->InnerRect.GetHeight() - window->CalcFontSize() * 1.0f + nav_rect_rel.GetHeight());
float nav_scoring_rect_offset_y = 0.0f;
if (IsKeyPressed(ImGuiKey_PageUp, true))
{
nav_scoring_rect_offset_y = -page_offset_y;
g.NavMoveDir = ImGuiDir_Down; // Because our scoring rect is offset up, we request the down direction (so we can always land on the last item)
g.NavMoveClipDir = ImGuiDir_Up;
g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
}
else if (IsKeyPressed(ImGuiKey_PageDown, true))
{
nav_scoring_rect_offset_y = +page_offset_y;
g.NavMoveDir = ImGuiDir_Up; // Because our scoring rect is offset down, we request the up direction (so we can always land on the last item)
g.NavMoveClipDir = ImGuiDir_Down;
g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
}
else if (home_pressed)
{
// FIXME-NAV: handling of Home/End is assuming that the top/bottom most item will be visible with Scroll.y == 0/ScrollMax.y
// Scrolling will be handled via the ImGuiNavMoveFlags_ScrollToEdgeY flag, we don't scroll immediately to avoid scrolling happening before nav result.
// Preserve current horizontal position if we have any.
nav_rect_rel.Min.y = nav_rect_rel.Max.y = 0.0f;
if (nav_rect_rel.IsInverted())
nav_rect_rel.Min.x = nav_rect_rel.Max.x = 0.0f;
g.NavMoveDir = ImGuiDir_Down;
g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_ScrollToEdgeY;
// FIXME-NAV: MoveClipDir left to _None, intentional?
}
else if (end_pressed)
{
nav_rect_rel.Min.y = nav_rect_rel.Max.y = window->ContentSize.y;
if (nav_rect_rel.IsInverted())
nav_rect_rel.Min.x = nav_rect_rel.Max.x = 0.0f;
g.NavMoveDir = ImGuiDir_Up;
g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_ScrollToEdgeY;
// FIXME-NAV: MoveClipDir left to _None, intentional?
}
return nav_scoring_rect_offset_y;
}
return 0.0f;
}
static void ImGui::NavEndFrame()
{
ImGuiContext& g = *GImGui;
// Show CTRL+TAB list window
if (g.NavWindowingTarget != NULL)
NavUpdateWindowingOverlay();
// Perform wrap-around in menus
// FIXME-NAV: Wrap may need to apply a weight bias on the other axis. e.g. 4x4 grid with 2 last items missing on last item won't handle LoopY/WrapY correctly.
// FIXME-NAV: Wrap (not Loop) support could be handled by the scoring function and then WrapX would function without an extra frame.
const ImGuiNavMoveFlags wanted_flags = ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_LoopX | ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY;
if (g.NavWindow && NavMoveRequestButNoResultYet() && (g.NavMoveFlags & wanted_flags) && (g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded) == 0)
NavUpdateCreateWrappingRequest();
}
static void ImGui::NavUpdateCreateWrappingRequest()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.NavWindow;
bool do_forward = false;
ImRect bb_rel = window->NavRectRel[g.NavLayer];
ImGuiDir clip_dir = g.NavMoveDir;
const ImGuiNavMoveFlags move_flags = g.NavMoveFlags;
if (g.NavMoveDir == ImGuiDir_Left && (move_flags & (ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_LoopX)))
{
bb_rel.Min.x = bb_rel.Max.x = window->ContentSize.x + window->WindowPadding.x;
if (move_flags & ImGuiNavMoveFlags_WrapX)
{
bb_rel.TranslateY(-bb_rel.GetHeight()); // Previous row
clip_dir = ImGuiDir_Up;
}
do_forward = true;
}
if (g.NavMoveDir == ImGuiDir_Right && (move_flags & (ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_LoopX)))
{
bb_rel.Min.x = bb_rel.Max.x = -window->WindowPadding.x;
if (move_flags & ImGuiNavMoveFlags_WrapX)
{
bb_rel.TranslateY(+bb_rel.GetHeight()); // Next row
clip_dir = ImGuiDir_Down;
}
do_forward = true;
}
if (g.NavMoveDir == ImGuiDir_Up && (move_flags & (ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY)))
{
bb_rel.Min.y = bb_rel.Max.y = window->ContentSize.y + window->WindowPadding.y;
if (move_flags & ImGuiNavMoveFlags_WrapY)
{
bb_rel.TranslateX(-bb_rel.GetWidth()); // Previous column
clip_dir = ImGuiDir_Left;
}
do_forward = true;
}
if (g.NavMoveDir == ImGuiDir_Down && (move_flags & (ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY)))
{
bb_rel.Min.y = bb_rel.Max.y = -window->WindowPadding.y;
if (move_flags & ImGuiNavMoveFlags_WrapY)
{
bb_rel.TranslateX(+bb_rel.GetWidth()); // Next column
clip_dir = ImGuiDir_Right;
}
do_forward = true;
}
if (!do_forward)
return;
window->NavRectRel[g.NavLayer] = bb_rel;
NavMoveRequestForward(g.NavMoveDir, clip_dir, move_flags, g.NavMoveScrollFlags);
}
static int ImGui::FindWindowFocusIndex(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
IM_UNUSED(g);
int order = window->FocusOrder;
IM_ASSERT(window->RootWindow == window); // No child window (not testing _ChildWindow because of docking)
IM_ASSERT(g.WindowsFocusOrder[order] == window);
return order;
}
static ImGuiWindow* FindWindowNavFocusable(int i_start, int i_stop, int dir) // FIXME-OPT O(N)
{
ImGuiContext& g = *GImGui;
for (int i = i_start; i >= 0 && i < g.WindowsFocusOrder.Size && i != i_stop; i += dir)
if (ImGui::IsWindowNavFocusable(g.WindowsFocusOrder[i]))
return g.WindowsFocusOrder[i];
return NULL;
}
static void NavUpdateWindowingHighlightWindow(int focus_change_dir)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.NavWindowingTarget);
if (g.NavWindowingTarget->Flags & ImGuiWindowFlags_Modal)
return;
const int i_current = ImGui::FindWindowFocusIndex(g.NavWindowingTarget);
ImGuiWindow* window_target = FindWindowNavFocusable(i_current + focus_change_dir, -INT_MAX, focus_change_dir);
if (!window_target)
window_target = FindWindowNavFocusable((focus_change_dir < 0) ? (g.WindowsFocusOrder.Size - 1) : 0, i_current, focus_change_dir);
if (window_target) // Don't reset windowing target if there's a single window in the list
{
g.NavWindowingTarget = g.NavWindowingTargetAnim = window_target;
g.NavWindowingAccumDeltaPos = g.NavWindowingAccumDeltaSize = ImVec2(0.0f, 0.0f);
}
g.NavWindowingToggleLayer = false;
}
// Windowing management mode
// Keyboard: CTRL+Tab (change focus/move/resize), Alt (toggle menu layer)
// Gamepad: Hold Menu/Square (change focus/move/resize), Tap Menu/Square (toggle menu layer)
static void ImGui::NavUpdateWindowing()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
ImGuiWindow* apply_focus_window = NULL;
bool apply_toggle_layer = false;
ImGuiWindow* modal_window = GetTopMostPopupModal();
bool allow_windowing = (modal_window == NULL);
if (!allow_windowing)
g.NavWindowingTarget = NULL;
// Fade out
if (g.NavWindowingTargetAnim && g.NavWindowingTarget == NULL)
{
g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha - io.DeltaTime * 10.0f, 0.0f);
if (g.DimBgRatio <= 0.0f && g.NavWindowingHighlightAlpha <= 0.0f)
g.NavWindowingTargetAnim = NULL;
}
// Start CTRL+Tab or Square+L/R window selection
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
const bool keyboard_next_window = allow_windowing && g.ConfigNavWindowingKeyNext && Shortcut(g.ConfigNavWindowingKeyNext, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat | ImGuiInputFlags_RouteAlways);
const bool keyboard_prev_window = allow_windowing && g.ConfigNavWindowingKeyPrev && Shortcut(g.ConfigNavWindowingKeyPrev, ImGuiKeyOwner_None, ImGuiInputFlags_Repeat | ImGuiInputFlags_RouteAlways);
const bool start_windowing_with_gamepad = allow_windowing && nav_gamepad_active && !g.NavWindowingTarget && IsKeyPressed(ImGuiKey_NavGamepadMenu, 0, ImGuiInputFlags_None);
const bool start_windowing_with_keyboard = allow_windowing && !g.NavWindowingTarget && (keyboard_next_window || keyboard_prev_window); // Note: enabled even without NavEnableKeyboard!
if (start_windowing_with_gamepad || start_windowing_with_keyboard)
if (ImGuiWindow* window = g.NavWindow ? g.NavWindow : FindWindowNavFocusable(g.WindowsFocusOrder.Size - 1, -INT_MAX, -1))
{
g.NavWindowingTarget = g.NavWindowingTargetAnim = window->RootWindow;
g.NavWindowingTimer = g.NavWindowingHighlightAlpha = 0.0f;
g.NavWindowingAccumDeltaPos = g.NavWindowingAccumDeltaSize = ImVec2(0.0f, 0.0f);
g.NavWindowingToggleLayer = start_windowing_with_gamepad ? true : false; // Gamepad starts toggling layer
g.NavInputSource = start_windowing_with_keyboard ? ImGuiInputSource_Keyboard : ImGuiInputSource_Gamepad;
}
// Gamepad update
g.NavWindowingTimer += io.DeltaTime;
if (g.NavWindowingTarget && g.NavInputSource == ImGuiInputSource_Gamepad)
{
// Highlight only appears after a brief time holding the button, so that a fast tap on PadMenu (to toggle NavLayer) doesn't add visual noise
g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingTimer - NAV_WINDOWING_HIGHLIGHT_DELAY) / 0.05f));
// Select window to focus
const int focus_change_dir = (int)IsKeyPressed(ImGuiKey_GamepadL1) - (int)IsKeyPressed(ImGuiKey_GamepadR1);
if (focus_change_dir != 0)
{
NavUpdateWindowingHighlightWindow(focus_change_dir);
g.NavWindowingHighlightAlpha = 1.0f;
}
// Single press toggles NavLayer, long press with L/R apply actual focus on release (until then the window was merely rendered top-most)
if (!IsKeyDown(ImGuiKey_NavGamepadMenu))
{
g.NavWindowingToggleLayer &= (g.NavWindowingHighlightAlpha < 1.0f); // Once button was held long enough we don't consider it a tap-to-toggle-layer press anymore.
if (g.NavWindowingToggleLayer && g.NavWindow)
apply_toggle_layer = true;
else if (!g.NavWindowingToggleLayer)
apply_focus_window = g.NavWindowingTarget;
g.NavWindowingTarget = NULL;
}
}
// Keyboard: Focus
if (g.NavWindowingTarget && g.NavInputSource == ImGuiInputSource_Keyboard)
{
// Visuals only appears after a brief time after pressing TAB the first time, so that a fast CTRL+TAB doesn't add visual noise
ImGuiKeyChord shared_mods = ((g.ConfigNavWindowingKeyNext ? g.ConfigNavWindowingKeyNext : ImGuiMod_Mask_) & (g.ConfigNavWindowingKeyPrev ? g.ConfigNavWindowingKeyPrev : ImGuiMod_Mask_)) & ImGuiMod_Mask_;
IM_ASSERT(shared_mods != 0); // Next/Prev shortcut currently needs a shared modifier to "hold", otherwise Prev actions would keep cycling between two windows.
g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingTimer - NAV_WINDOWING_HIGHLIGHT_DELAY) / 0.05f)); // 1.0f
if (keyboard_next_window || keyboard_prev_window)
NavUpdateWindowingHighlightWindow(keyboard_next_window ? -1 : +1);
else if ((io.KeyMods & shared_mods) != shared_mods)
apply_focus_window = g.NavWindowingTarget;
}
// Keyboard: Press and Release ALT to toggle menu layer
// - Testing that only Alt is tested prevents Alt+Shift or AltGR from toggling menu layer.
// - AltGR is normally Alt+Ctrl but we can't reliably detect it (not all backends/systems/layout emit it as Alt+Ctrl). But even on keyboards without AltGR we don't want Alt+Ctrl to open menu anyway.
if (nav_keyboard_active && IsKeyPressed(ImGuiMod_Alt, ImGuiKeyOwner_None))
{
g.NavWindowingToggleLayer = true;
g.NavInputSource = ImGuiInputSource_Keyboard;
}
if (g.NavWindowingToggleLayer && g.NavInputSource == ImGuiInputSource_Keyboard)
{
// We cancel toggling nav layer when any text has been typed (generally while holding Alt). (See #370)
// We cancel toggling nav layer when other modifiers are pressed. (See #4439)
// We cancel toggling nav layer if an owner has claimed the key.
if (io.InputQueueCharacters.Size > 0 || io.KeyCtrl || io.KeyShift || io.KeySuper || TestKeyOwner(ImGuiMod_Alt, ImGuiKeyOwner_None) == false)
g.NavWindowingToggleLayer = false;
// Apply layer toggle on release
// Important: as before version <18314 we lacked an explicit IO event for focus gain/loss, we also compare mouse validity to detect old backends clearing mouse pos on focus loss.
if (IsKeyReleased(ImGuiMod_Alt) && g.NavWindowingToggleLayer)
if (g.ActiveId == 0 || g.ActiveIdAllowOverlap)
if (IsMousePosValid(&io.MousePos) == IsMousePosValid(&io.MousePosPrev))
apply_toggle_layer = true;
if (!IsKeyDown(ImGuiMod_Alt))
g.NavWindowingToggleLayer = false;
}
// Move window
if (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoMove))
{
ImVec2 nav_move_dir;
if (g.NavInputSource == ImGuiInputSource_Keyboard && !io.KeyShift)
nav_move_dir = GetKeyMagnitude2d(ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow);
if (g.NavInputSource == ImGuiInputSource_Gamepad)
nav_move_dir = GetKeyMagnitude2d(ImGuiKey_GamepadLStickLeft, ImGuiKey_GamepadLStickRight, ImGuiKey_GamepadLStickUp, ImGuiKey_GamepadLStickDown);
if (nav_move_dir.x != 0.0f || nav_move_dir.y != 0.0f)
{
const float NAV_MOVE_SPEED = 800.0f;
const float move_step = NAV_MOVE_SPEED * io.DeltaTime * ImMin(io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
g.NavWindowingAccumDeltaPos += nav_move_dir * move_step;
g.NavDisableMouseHover = true;
ImVec2 accum_floored = ImFloor(g.NavWindowingAccumDeltaPos);
if (accum_floored.x != 0.0f || accum_floored.y != 0.0f)
{
ImGuiWindow* moving_window = g.NavWindowingTarget->RootWindow;
SetWindowPos(moving_window, moving_window->Pos + accum_floored, ImGuiCond_Always);
g.NavWindowingAccumDeltaPos -= accum_floored;
}
}
}
// Apply final focus
if (apply_focus_window && (g.NavWindow == NULL || apply_focus_window != g.NavWindow->RootWindow))
{
ClearActiveID();
NavRestoreHighlightAfterMove();
apply_focus_window = NavRestoreLastChildNavWindow(apply_focus_window);
ClosePopupsOverWindow(apply_focus_window, false);
FocusWindow(apply_focus_window);
if (apply_focus_window->NavLastIds[0] == 0)
NavInitWindow(apply_focus_window, false);
// If the window has ONLY a menu layer (no main layer), select it directly
// Use NavLayersActiveMaskNext since windows didn't have a chance to be Begin()-ed on this frame,
// so CTRL+Tab where the keys are only held for 1 frame will be able to use correct layers mask since
// the target window as already been previewed once.
// FIXME-NAV: This should be done in NavInit.. or in FocusWindow... However in both of those cases,
// we won't have a guarantee that windows has been visible before and therefore NavLayersActiveMask*
// won't be valid.
if (apply_focus_window->DC.NavLayersActiveMaskNext == (1 << ImGuiNavLayer_Menu))
g.NavLayer = ImGuiNavLayer_Menu;
}
if (apply_focus_window)
g.NavWindowingTarget = NULL;
// Apply menu/layer toggle
if (apply_toggle_layer && g.NavWindow)
{
ClearActiveID();
// Move to parent menu if necessary
ImGuiWindow* new_nav_window = g.NavWindow;
while (new_nav_window->ParentWindow
&& (new_nav_window->DC.NavLayersActiveMask & (1 << ImGuiNavLayer_Menu)) == 0
&& (new_nav_window->Flags & ImGuiWindowFlags_ChildWindow) != 0
&& (new_nav_window->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu)) == 0)
new_nav_window = new_nav_window->ParentWindow;
if (new_nav_window != g.NavWindow)
{
ImGuiWindow* old_nav_window = g.NavWindow;
FocusWindow(new_nav_window);
new_nav_window->NavLastChildNavWindow = old_nav_window;
}
// Toggle layer
const ImGuiNavLayer new_nav_layer = (g.NavWindow->DC.NavLayersActiveMask & (1 << ImGuiNavLayer_Menu)) ? (ImGuiNavLayer)((int)g.NavLayer ^ 1) : ImGuiNavLayer_Main;
if (new_nav_layer != g.NavLayer)
{
// Reinitialize navigation when entering menu bar with the Alt key (FIXME: could be a properly of the layer?)
if (new_nav_layer == ImGuiNavLayer_Menu)
g.NavWindow->NavLastIds[new_nav_layer] = 0;
NavRestoreLayer(new_nav_layer);
NavRestoreHighlightAfterMove();
}
}
}
// Window has already passed the IsWindowNavFocusable()
static const char* GetFallbackWindowNameForWindowingList(ImGuiWindow* window)
{
if (window->Flags & ImGuiWindowFlags_Popup)
return ImGui::LocalizeGetMsg(ImGuiLocKey_WindowingPopup);
if ((window->Flags & ImGuiWindowFlags_MenuBar) && strcmp(window->Name, "##MainMenuBar") == 0)
return ImGui::LocalizeGetMsg(ImGuiLocKey_WindowingMainMenuBar);
return ImGui::LocalizeGetMsg(ImGuiLocKey_WindowingUntitled);
}
// Overlay displayed when using CTRL+TAB. Called by EndFrame().
void ImGui::NavUpdateWindowingOverlay()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.NavWindowingTarget != NULL);
if (g.NavWindowingTimer < NAV_WINDOWING_LIST_APPEAR_DELAY)
return;
if (g.NavWindowingListWindow == NULL)
g.NavWindowingListWindow = FindWindowByName("###NavWindowingList");
const ImGuiViewport* viewport = GetMainViewport();
SetNextWindowSizeConstraints(ImVec2(viewport->Size.x * 0.20f, viewport->Size.y * 0.20f), ImVec2(FLT_MAX, FLT_MAX));
SetNextWindowPos(viewport->GetCenter(), ImGuiCond_Always, ImVec2(0.5f, 0.5f));
PushStyleVar(ImGuiStyleVar_WindowPadding, g.Style.WindowPadding * 2.0f);
Begin("###NavWindowingList", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings);
for (int n = g.WindowsFocusOrder.Size - 1; n >= 0; n--)
{
ImGuiWindow* window = g.WindowsFocusOrder[n];
IM_ASSERT(window != NULL); // Fix static analyzers
if (!IsWindowNavFocusable(window))
continue;
const char* label = window->Name;
if (label == FindRenderedTextEnd(label))
label = GetFallbackWindowNameForWindowingList(window);
Selectable(label, g.NavWindowingTarget == window);
}
End();
PopStyleVar();
}
//-----------------------------------------------------------------------------
// [SECTION] DRAG AND DROP
//-----------------------------------------------------------------------------
bool ImGui::IsDragDropActive()
{
ImGuiContext& g = *GImGui;
return g.DragDropActive;
}
void ImGui::ClearDragDrop()
{
ImGuiContext& g = *GImGui;
g.DragDropActive = false;
g.DragDropPayload.Clear();
g.DragDropAcceptFlags = ImGuiDragDropFlags_None;
g.DragDropAcceptIdCurr = g.DragDropAcceptIdPrev = 0;
g.DragDropAcceptIdCurrRectSurface = FLT_MAX;
g.DragDropAcceptFrameCount = -1;
g.DragDropPayloadBufHeap.clear();
memset(&g.DragDropPayloadBufLocal, 0, sizeof(g.DragDropPayloadBufLocal));
}
// When this returns true you need to: a) call SetDragDropPayload() exactly once, b) you may render the payload visual/description, c) call EndDragDropSource()
// If the item has an identifier:
// - This assume/require the item to be activated (typically via ButtonBehavior).
// - Therefore if you want to use this with a mouse button other than left mouse button, it is up to the item itself to activate with another button.
// - We then pull and use the mouse button that was used to activate the item and use it to carry on the drag.
// If the item has no identifier:
// - Currently always assume left mouse button.
bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// FIXME-DRAGDROP: While in the common-most "drag from non-zero active id" case we can tell the mouse button,
// in both SourceExtern and id==0 cases we may requires something else (explicit flags or some heuristic).
ImGuiMouseButton mouse_button = ImGuiMouseButton_Left;
bool source_drag_active = false;
ImGuiID source_id = 0;
ImGuiID source_parent_id = 0;
if (!(flags & ImGuiDragDropFlags_SourceExtern))
{
source_id = g.LastItemData.ID;
if (source_id != 0)
{
// Common path: items with ID
if (g.ActiveId != source_id)
return false;
if (g.ActiveIdMouseButton != -1)
mouse_button = g.ActiveIdMouseButton;
if (g.IO.MouseDown[mouse_button] == false || window->SkipItems)
return false;
g.ActiveIdAllowOverlap = false;
}
else
{
// Uncommon path: items without ID
if (g.IO.MouseDown[mouse_button] == false || window->SkipItems)
return false;
if ((g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredRect) == 0 && (g.ActiveId == 0 || g.ActiveIdWindow != window))
return false;
// If you want to use BeginDragDropSource() on an item with no unique identifier for interaction, such as Text() or Image(), you need to:
// A) Read the explanation below, B) Use the ImGuiDragDropFlags_SourceAllowNullID flag.
if (!(flags & ImGuiDragDropFlags_SourceAllowNullID))
{
IM_ASSERT(0);
return false;
}
// Magic fallback to handle items with no assigned ID, e.g. Text(), Image()
// We build a throwaway ID based on current ID stack + relative AABB of items in window.
// THE IDENTIFIER WON'T SURVIVE ANY REPOSITIONING/RESIZINGG OF THE WIDGET, so if your widget moves your dragging operation will be canceled.
// We don't need to maintain/call ClearActiveID() as releasing the button will early out this function and trigger !ActiveIdIsAlive.
// Rely on keeping other window->LastItemXXX fields intact.
source_id = g.LastItemData.ID = window->GetIDFromRectangle(g.LastItemData.Rect);
KeepAliveID(source_id);
bool is_hovered = ItemHoverable(g.LastItemData.Rect, source_id);
if (is_hovered && g.IO.MouseClicked[mouse_button])
{
SetActiveID(source_id, window);
FocusWindow(window);
}
if (g.ActiveId == source_id) // Allow the underlying widget to display/return hovered during the mouse release frame, else we would get a flicker.
g.ActiveIdAllowOverlap = is_hovered;
}
if (g.ActiveId != source_id)
return false;
source_parent_id = window->IDStack.back();
source_drag_active = IsMouseDragging(mouse_button);
// Disable navigation and key inputs while dragging + cancel existing request if any
SetActiveIdUsingAllKeyboardKeys();
}
else
{
window = NULL;
source_id = ImHashStr("#SourceExtern");
source_drag_active = true;
}
if (source_drag_active)
{
if (!g.DragDropActive)
{
IM_ASSERT(source_id != 0);
ClearDragDrop();
ImGuiPayload& payload = g.DragDropPayload;
payload.SourceId = source_id;
payload.SourceParentId = source_parent_id;
g.DragDropActive = true;
g.DragDropSourceFlags = flags;
g.DragDropMouseButton = mouse_button;
if (payload.SourceId == g.ActiveId)
g.ActiveIdNoClearOnFocusLoss = true;
}
g.DragDropSourceFrameCount = g.FrameCount;
g.DragDropWithinSource = true;
if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
// Target can request the Source to not display its tooltip (we use a dedicated flag to make this request explicit)
// We unfortunately can't just modify the source flags and skip the call to BeginTooltip, as caller may be emitting contents.
bool ret = BeginTooltip();
IM_ASSERT(ret); // FIXME-NEWBEGIN: If this ever becomes false, we need to Begin("##Hidden", NULL, ImGuiWindowFlags_NoSavedSettings) + SetWindowHiddendAndSkipItemsForCurrentFrame().
IM_UNUSED(ret);
if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
SetWindowHiddendAndSkipItemsForCurrentFrame(g.CurrentWindow);
}
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
g.LastItemData.StatusFlags &= ~ImGuiItemStatusFlags_HoveredRect;
return true;
}
return false;
}
void ImGui::EndDragDropSource()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.DragDropActive);
IM_ASSERT(g.DragDropWithinSource && "Not after a BeginDragDropSource()?");
if (!(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
EndTooltip();
// Discard the drag if have not called SetDragDropPayload()
if (g.DragDropPayload.DataFrameCount == -1)
ClearDragDrop();
g.DragDropWithinSource = false;
}
// Use 'cond' to choose to submit payload on drag start or every frame
bool ImGui::SetDragDropPayload(const char* type, const void* data, size_t data_size, ImGuiCond cond)
{
ImGuiContext& g = *GImGui;
ImGuiPayload& payload = g.DragDropPayload;
if (cond == 0)
cond = ImGuiCond_Always;
IM_ASSERT(type != NULL);
IM_ASSERT(strlen(type) < IM_ARRAYSIZE(payload.DataType) && "Payload type can be at most 32 characters long");
IM_ASSERT((data != NULL && data_size > 0) || (data == NULL && data_size == 0));
IM_ASSERT(cond == ImGuiCond_Always || cond == ImGuiCond_Once);
IM_ASSERT(payload.SourceId != 0); // Not called between BeginDragDropSource() and EndDragDropSource()
if (cond == ImGuiCond_Always || payload.DataFrameCount == -1)
{
// Copy payload
ImStrncpy(payload.DataType, type, IM_ARRAYSIZE(payload.DataType));
g.DragDropPayloadBufHeap.resize(0);
if (data_size > sizeof(g.DragDropPayloadBufLocal))
{
// Store in heap
g.DragDropPayloadBufHeap.resize((int)data_size);
payload.Data = g.DragDropPayloadBufHeap.Data;
memcpy(payload.Data, data, data_size);
}
else if (data_size > 0)
{
// Store locally
memset(&g.DragDropPayloadBufLocal, 0, sizeof(g.DragDropPayloadBufLocal));
payload.Data = g.DragDropPayloadBufLocal;
memcpy(payload.Data, data, data_size);
}
else
{
payload.Data = NULL;
}
payload.DataSize = (int)data_size;
}
payload.DataFrameCount = g.FrameCount;
// Return whether the payload has been accepted
return (g.DragDropAcceptFrameCount == g.FrameCount) || (g.DragDropAcceptFrameCount == g.FrameCount - 1);
}
bool ImGui::BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id)
{
ImGuiContext& g = *GImGui;
if (!g.DragDropActive)
return false;
ImGuiWindow* window = g.CurrentWindow;
ImGuiWindow* hovered_window = g.HoveredWindowUnderMovingWindow;
if (hovered_window == NULL || window->RootWindow != hovered_window->RootWindow)
return false;
IM_ASSERT(id != 0);
if (!IsMouseHoveringRect(bb.Min, bb.Max) || (id == g.DragDropPayload.SourceId))
return false;
if (window->SkipItems)
return false;
IM_ASSERT(g.DragDropWithinTarget == false);
g.DragDropTargetRect = bb;
g.DragDropTargetId = id;
g.DragDropWithinTarget = true;
return true;
}
// We don't use BeginDragDropTargetCustom() and duplicate its code because:
// 1) we use LastItemRectHoveredRect which handles items that push a temporarily clip rectangle in their code. Calling BeginDragDropTargetCustom(LastItemRect) would not handle them.
// 2) and it's faster. as this code may be very frequently called, we want to early out as fast as we can.
// Also note how the HoveredWindow test is positioned differently in both functions (in both functions we optimize for the cheapest early out case)
bool ImGui::BeginDragDropTarget()
{
ImGuiContext& g = *GImGui;
if (!g.DragDropActive)
return false;
ImGuiWindow* window = g.CurrentWindow;
if (!(g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredRect))
return false;
ImGuiWindow* hovered_window = g.HoveredWindowUnderMovingWindow;
if (hovered_window == NULL || window->RootWindow != hovered_window->RootWindow || window->SkipItems)
return false;
const ImRect& display_rect = (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HasDisplayRect) ? g.LastItemData.DisplayRect : g.LastItemData.Rect;
ImGuiID id = g.LastItemData.ID;
if (id == 0)
{
id = window->GetIDFromRectangle(display_rect);
KeepAliveID(id);
}
if (g.DragDropPayload.SourceId == id)
return false;
IM_ASSERT(g.DragDropWithinTarget == false);
g.DragDropTargetRect = display_rect;
g.DragDropTargetId = id;
g.DragDropWithinTarget = true;
return true;
}
bool ImGui::IsDragDropPayloadBeingAccepted()
{
ImGuiContext& g = *GImGui;
return g.DragDropActive && g.DragDropAcceptIdPrev != 0;
}
const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiPayload& payload = g.DragDropPayload;
IM_ASSERT(g.DragDropActive); // Not called between BeginDragDropTarget() and EndDragDropTarget() ?
IM_ASSERT(payload.DataFrameCount != -1); // Forgot to call EndDragDropTarget() ?
if (type != NULL && !payload.IsDataType(type))
return NULL;
// Accept smallest drag target bounding box, this allows us to nest drag targets conveniently without ordering constraints.
// NB: We currently accept NULL id as target. However, overlapping targets requires a unique ID to function!
const bool was_accepted_previously = (g.DragDropAcceptIdPrev == g.DragDropTargetId);
ImRect r = g.DragDropTargetRect;
float r_surface = r.GetWidth() * r.GetHeight();
if (r_surface > g.DragDropAcceptIdCurrRectSurface)
return NULL;
g.DragDropAcceptFlags = flags;
g.DragDropAcceptIdCurr = g.DragDropTargetId;
g.DragDropAcceptIdCurrRectSurface = r_surface;
//IMGUI_DEBUG_LOG("AcceptDragDropPayload(): %08X: accept\n", g.DragDropTargetId);
// Render default drop visuals
payload.Preview = was_accepted_previously;
flags |= (g.DragDropSourceFlags & ImGuiDragDropFlags_AcceptNoDrawDefaultRect); // Source can also inhibit the preview (useful for external sources that live for 1 frame)
if (!(flags & ImGuiDragDropFlags_AcceptNoDrawDefaultRect) && payload.Preview)
window->DrawList->AddRect(r.Min - ImVec2(3.5f,3.5f), r.Max + ImVec2(3.5f, 3.5f), GetColorU32(ImGuiCol_DragDropTarget), 0.0f, 0, 2.0f);
g.DragDropAcceptFrameCount = g.FrameCount;
payload.Delivery = was_accepted_previously && !IsMouseDown(g.DragDropMouseButton); // For extern drag sources affecting OS window focus, it's easier to just test !IsMouseDown() instead of IsMouseReleased()
if (!payload.Delivery && !(flags & ImGuiDragDropFlags_AcceptBeforeDelivery))
return NULL;
//IMGUI_DEBUG_LOG("AcceptDragDropPayload(): %08X: return payload\n", g.DragDropTargetId);
return &payload;
}
// FIXME-DRAGDROP: Settle on a proper default visuals for drop target.
void ImGui::RenderDragDropTargetRect(const ImRect& bb)
{
GetWindowDrawList()->AddRect(bb.Min - ImVec2(3.5f, 3.5f), bb.Max + ImVec2(3.5f, 3.5f), GetColorU32(ImGuiCol_DragDropTarget), 0.0f, 0, 2.0f);
}
const ImGuiPayload* ImGui::GetDragDropPayload()
{
ImGuiContext& g = *GImGui;
return (g.DragDropActive && g.DragDropPayload.DataFrameCount != -1) ? &g.DragDropPayload : NULL;
}
void ImGui::EndDragDropTarget()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.DragDropActive);
IM_ASSERT(g.DragDropWithinTarget);
g.DragDropWithinTarget = false;
// Clear drag and drop state payload right after delivery
if (g.DragDropPayload.Delivery)
ClearDragDrop();
}
//-----------------------------------------------------------------------------
// [SECTION] LOGGING/CAPTURING
//-----------------------------------------------------------------------------
// All text output from the interface can be captured into tty/file/clipboard.
// By default, tree nodes are automatically opened during logging.
//-----------------------------------------------------------------------------
// Pass text data straight to log (without being displayed)
static inline void LogTextV(ImGuiContext& g, const char* fmt, va_list args)
{
if (g.LogFile)
{
g.LogBuffer.Buf.resize(0);
g.LogBuffer.appendfv(fmt, args);
ImFileWrite(g.LogBuffer.c_str(), sizeof(char), (ImU64)g.LogBuffer.size(), g.LogFile);
}
else
{
g.LogBuffer.appendfv(fmt, args);
}
}
void ImGui::LogText(const char* fmt, ...)
{
ImGuiContext& g = *GImGui;
if (!g.LogEnabled)
return;
va_list args;
va_start(args, fmt);
LogTextV(g, fmt, args);
va_end(args);
}
void ImGui::LogTextV(const char* fmt, va_list args)
{
ImGuiContext& g = *GImGui;
if (!g.LogEnabled)
return;
LogTextV(g, fmt, args);
}
// Internal version that takes a position to decide on newline placement and pad items according to their depth.
// We split text into individual lines to add current tree level padding
// FIXME: This code is a little complicated perhaps, considering simplifying the whole system.
void ImGui::LogRenderedText(const ImVec2* ref_pos, const char* text, const char* text_end)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const char* prefix = g.LogNextPrefix;
const char* suffix = g.LogNextSuffix;
g.LogNextPrefix = g.LogNextSuffix = NULL;
if (!text_end)
text_end = FindRenderedTextEnd(text, text_end);
const bool log_new_line = ref_pos && (ref_pos->y > g.LogLinePosY + g.Style.FramePadding.y + 1);
if (ref_pos)
g.LogLinePosY = ref_pos->y;
if (log_new_line)
{
LogText(IM_NEWLINE);
g.LogLineFirstItem = true;
}
if (prefix)
LogRenderedText(ref_pos, prefix, prefix + strlen(prefix)); // Calculate end ourself to ensure "##" are included here.
// Re-adjust padding if we have popped out of our starting depth
if (g.LogDepthRef > window->DC.TreeDepth)
g.LogDepthRef = window->DC.TreeDepth;
const int tree_depth = (window->DC.TreeDepth - g.LogDepthRef);
const char* text_remaining = text;
for (;;)
{
// Split the string. Each new line (after a '\n') is followed by indentation corresponding to the current depth of our log entry.
// We don't add a trailing \n yet to allow a subsequent item on the same line to be captured.
const char* line_start = text_remaining;
const char* line_end = ImStreolRange(line_start, text_end);
const bool is_last_line = (line_end == text_end);
if (line_start != line_end || !is_last_line)
{
const int line_length = (int)(line_end - line_start);
const int indentation = g.LogLineFirstItem ? tree_depth * 4 : 1;
LogText("%*s%.*s", indentation, "", line_length, line_start);
g.LogLineFirstItem = false;
if (*line_end == '\n')
{
LogText(IM_NEWLINE);
g.LogLineFirstItem = true;
}
}
if (is_last_line)
break;
text_remaining = line_end + 1;
}
if (suffix)
LogRenderedText(ref_pos, suffix, suffix + strlen(suffix));
}
// Start logging/capturing text output
void ImGui::LogBegin(ImGuiLogType type, int auto_open_depth)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(g.LogEnabled == false);
IM_ASSERT(g.LogFile == NULL);
IM_ASSERT(g.LogBuffer.empty());
g.LogEnabled = true;
g.LogType = type;
g.LogNextPrefix = g.LogNextSuffix = NULL;
g.LogDepthRef = window->DC.TreeDepth;
g.LogDepthToExpand = ((auto_open_depth >= 0) ? auto_open_depth : g.LogDepthToExpandDefault);
g.LogLinePosY = FLT_MAX;
g.LogLineFirstItem = true;
}
// Important: doesn't copy underlying data, use carefully (prefix/suffix must be in scope at the time of the next LogRenderedText)
void ImGui::LogSetNextTextDecoration(const char* prefix, const char* suffix)
{
ImGuiContext& g = *GImGui;
g.LogNextPrefix = prefix;
g.LogNextSuffix = suffix;
}
void ImGui::LogToTTY(int auto_open_depth)
{
ImGuiContext& g = *GImGui;
if (g.LogEnabled)
return;
IM_UNUSED(auto_open_depth);
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
LogBegin(ImGuiLogType_TTY, auto_open_depth);
g.LogFile = stdout;
#endif
}
// Start logging/capturing text output to given file
void ImGui::LogToFile(int auto_open_depth, const char* filename)
{
ImGuiContext& g = *GImGui;
if (g.LogEnabled)
return;
// FIXME: We could probably open the file in text mode "at", however note that clipboard/buffer logging will still
// be subject to outputting OS-incompatible carriage return if within strings the user doesn't use IM_NEWLINE.
// By opening the file in binary mode "ab" we have consistent output everywhere.
if (!filename)
filename = g.IO.LogFilename;
if (!filename || !filename[0])
return;
ImFileHandle f = ImFileOpen(filename, "ab");
if (!f)
{
IM_ASSERT(0);
return;
}
LogBegin(ImGuiLogType_File, auto_open_depth);
g.LogFile = f;
}
// Start logging/capturing text output to clipboard
void ImGui::LogToClipboard(int auto_open_depth)
{
ImGuiContext& g = *GImGui;
if (g.LogEnabled)
return;
LogBegin(ImGuiLogType_Clipboard, auto_open_depth);
}
void ImGui::LogToBuffer(int auto_open_depth)
{
ImGuiContext& g = *GImGui;
if (g.LogEnabled)
return;
LogBegin(ImGuiLogType_Buffer, auto_open_depth);
}
void ImGui::LogFinish()
{
ImGuiContext& g = *GImGui;
if (!g.LogEnabled)
return;
LogText(IM_NEWLINE);
switch (g.LogType)
{
case ImGuiLogType_TTY:
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
fflush(g.LogFile);
#endif
break;
case ImGuiLogType_File:
ImFileClose(g.LogFile);
break;
case ImGuiLogType_Buffer:
break;
case ImGuiLogType_Clipboard:
if (!g.LogBuffer.empty())
SetClipboardText(g.LogBuffer.begin());
break;
case ImGuiLogType_None:
IM_ASSERT(0);
break;
}
g.LogEnabled = false;
g.LogType = ImGuiLogType_None;
g.LogFile = NULL;
g.LogBuffer.clear();
}
// Helper to display logging buttons
// FIXME-OBSOLETE: We should probably obsolete this and let the user have their own helper (this is one of the oldest function alive!)
void ImGui::LogButtons()
{
ImGuiContext& g = *GImGui;
PushID("LogButtons");
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
const bool log_to_tty = Button("Log To TTY"); SameLine();
#else
const bool log_to_tty = false;
#endif
const bool log_to_file = Button("Log To File"); SameLine();
const bool log_to_clipboard = Button("Log To Clipboard"); SameLine();
PushTabStop(false);
SetNextItemWidth(80.0f);
SliderInt("Default Depth", &g.LogDepthToExpandDefault, 0, 9, NULL);
PopTabStop();
PopID();
// Start logging at the end of the function so that the buttons don't appear in the log
if (log_to_tty)
LogToTTY();
if (log_to_file)
LogToFile();
if (log_to_clipboard)
LogToClipboard();
}
//-----------------------------------------------------------------------------
// [SECTION] SETTINGS
//-----------------------------------------------------------------------------
// - UpdateSettings() [Internal]
// - MarkIniSettingsDirty() [Internal]
// - FindSettingsHandler() [Internal]
// - ClearIniSettings() [Internal]
// - LoadIniSettingsFromDisk()
// - LoadIniSettingsFromMemory()
// - SaveIniSettingsToDisk()
// - SaveIniSettingsToMemory()
//-----------------------------------------------------------------------------
// - CreateNewWindowSettings() [Internal]
// - FindWindowSettingsByID() [Internal]
// - FindWindowSettingsByWindow() [Internal]
// - ClearWindowSettings() [Internal]
// - WindowSettingsHandler_***() [Internal]
//-----------------------------------------------------------------------------
// Called by NewFrame()
void ImGui::UpdateSettings()
{
// Load settings on first frame (if not explicitly loaded manually before)
ImGuiContext& g = *GImGui;
if (!g.SettingsLoaded)
{
IM_ASSERT(g.SettingsWindows.empty());
if (g.IO.IniFilename)
LoadIniSettingsFromDisk(g.IO.IniFilename);
g.SettingsLoaded = true;
}
// Save settings (with a delay after the last modification, so we don't spam disk too much)
if (g.SettingsDirtyTimer > 0.0f)
{
g.SettingsDirtyTimer -= g.IO.DeltaTime;
if (g.SettingsDirtyTimer <= 0.0f)
{
if (g.IO.IniFilename != NULL)
SaveIniSettingsToDisk(g.IO.IniFilename);
else
g.IO.WantSaveIniSettings = true; // Let user know they can call SaveIniSettingsToMemory(). user will need to clear io.WantSaveIniSettings themselves.
g.SettingsDirtyTimer = 0.0f;
}
}
}
void ImGui::MarkIniSettingsDirty()
{
ImGuiContext& g = *GImGui;
if (g.SettingsDirtyTimer <= 0.0f)
g.SettingsDirtyTimer = g.IO.IniSavingRate;
}
void ImGui::MarkIniSettingsDirty(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
if (!(window->Flags & ImGuiWindowFlags_NoSavedSettings))
if (g.SettingsDirtyTimer <= 0.0f)
g.SettingsDirtyTimer = g.IO.IniSavingRate;
}
void ImGui::AddSettingsHandler(const ImGuiSettingsHandler* handler)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(FindSettingsHandler(handler->TypeName) == NULL);
g.SettingsHandlers.push_back(*handler);
}
void ImGui::RemoveSettingsHandler(const char* type_name)
{
ImGuiContext& g = *GImGui;
if (ImGuiSettingsHandler* handler = FindSettingsHandler(type_name))
g.SettingsHandlers.erase(handler);
}
ImGuiSettingsHandler* ImGui::FindSettingsHandler(const char* type_name)
{
ImGuiContext& g = *GImGui;
const ImGuiID type_hash = ImHashStr(type_name);
for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
if (g.SettingsHandlers[handler_n].TypeHash == type_hash)
return &g.SettingsHandlers[handler_n];
return NULL;
}
// Clear all settings (windows, tables, docking etc.)
void ImGui::ClearIniSettings()
{
ImGuiContext& g = *GImGui;
g.SettingsIniData.clear();
for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
if (g.SettingsHandlers[handler_n].ClearAllFn)
g.SettingsHandlers[handler_n].ClearAllFn(&g, &g.SettingsHandlers[handler_n]);
}
void ImGui::LoadIniSettingsFromDisk(const char* ini_filename)
{
size_t file_data_size = 0;
char* file_data = (char*)ImFileLoadToMemory(ini_filename, "rb", &file_data_size);
if (!file_data)
return;
if (file_data_size > 0)
LoadIniSettingsFromMemory(file_data, (size_t)file_data_size);
IM_FREE(file_data);
}
// Zero-tolerance, no error reporting, cheap .ini parsing
void ImGui::LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.Initialized);
//IM_ASSERT(!g.WithinFrameScope && "Cannot be called between NewFrame() and EndFrame()");
//IM_ASSERT(g.SettingsLoaded == false && g.FrameCount == 0);
// For user convenience, we allow passing a non zero-terminated string (hence the ini_size parameter).
// For our convenience and to make the code simpler, we'll also write zero-terminators within the buffer. So let's create a writable copy..
if (ini_size == 0)
ini_size = strlen(ini_data);
g.SettingsIniData.Buf.resize((int)ini_size + 1);
char* const buf = g.SettingsIniData.Buf.Data;
char* const buf_end = buf + ini_size;
memcpy(buf, ini_data, ini_size);
buf_end[0] = 0;
// Call pre-read handlers
// Some types will clear their data (e.g. dock information) some types will allow merge/override (window)
for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
if (g.SettingsHandlers[handler_n].ReadInitFn)
g.SettingsHandlers[handler_n].ReadInitFn(&g, &g.SettingsHandlers[handler_n]);
void* entry_data = NULL;
ImGuiSettingsHandler* entry_handler = NULL;
char* line_end = NULL;
for (char* line = buf; line < buf_end; line = line_end + 1)
{
// Skip new lines markers, then find end of the line
while (*line == '\n' || *line == '\r')
line++;
line_end = line;
while (line_end < buf_end && *line_end != '\n' && *line_end != '\r')
line_end++;
line_end[0] = 0;
if (line[0] == ';')
continue;
if (line[0] == '[' && line_end > line && line_end[-1] == ']')
{
// Parse "[Type][Name]". Note that 'Name' can itself contains [] characters, which is acceptable with the current format and parsing code.
line_end[-1] = 0;
const char* name_end = line_end - 1;
const char* type_start = line + 1;
char* type_end = (char*)(void*)ImStrchrRange(type_start, name_end, ']');
const char* name_start = type_end ? ImStrchrRange(type_end + 1, name_end, '[') : NULL;
if (!type_end || !name_start)
continue;
*type_end = 0; // Overwrite first ']'
name_start++; // Skip second '['
entry_handler = FindSettingsHandler(type_start);
entry_data = entry_handler ? entry_handler->ReadOpenFn(&g, entry_handler, name_start) : NULL;
}
else if (entry_handler != NULL && entry_data != NULL)
{
// Let type handler parse the line
entry_handler->ReadLineFn(&g, entry_handler, entry_data, line);
}
}
g.SettingsLoaded = true;
// [DEBUG] Restore untouched copy so it can be browsed in Metrics (not strictly necessary)
memcpy(buf, ini_data, ini_size);
// Call post-read handlers
for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
if (g.SettingsHandlers[handler_n].ApplyAllFn)
g.SettingsHandlers[handler_n].ApplyAllFn(&g, &g.SettingsHandlers[handler_n]);
}
void ImGui::SaveIniSettingsToDisk(const char* ini_filename)
{
ImGuiContext& g = *GImGui;
g.SettingsDirtyTimer = 0.0f;
if (!ini_filename)
return;
size_t ini_data_size = 0;
const char* ini_data = SaveIniSettingsToMemory(&ini_data_size);
ImFileHandle f = ImFileOpen(ini_filename, "wt");
if (!f)
return;
ImFileWrite(ini_data, sizeof(char), ini_data_size, f);
ImFileClose(f);
}
// Call registered handlers (e.g. SettingsHandlerWindow_WriteAll() + custom handlers) to write their stuff into a text buffer
const char* ImGui::SaveIniSettingsToMemory(size_t* out_size)
{
ImGuiContext& g = *GImGui;
g.SettingsDirtyTimer = 0.0f;
g.SettingsIniData.Buf.resize(0);
g.SettingsIniData.Buf.push_back(0);
for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
{
ImGuiSettingsHandler* handler = &g.SettingsHandlers[handler_n];
handler->WriteAllFn(&g, handler, &g.SettingsIniData);
}
if (out_size)
*out_size = (size_t)g.SettingsIniData.size();
return g.SettingsIniData.c_str();
}
ImGuiWindowSettings* ImGui::CreateNewWindowSettings(const char* name)
{
ImGuiContext& g = *GImGui;
#if !IMGUI_DEBUG_INI_SETTINGS
// Skip to the "###" marker if any. We don't skip past to match the behavior of GetID()
// Preserve the full string when IMGUI_DEBUG_INI_SETTINGS is set to make .ini inspection easier.
if (const char* p = strstr(name, "###"))
name = p;
#endif
const size_t name_len = strlen(name);
// Allocate chunk
const size_t chunk_size = sizeof(ImGuiWindowSettings) + name_len + 1;
ImGuiWindowSettings* settings = g.SettingsWindows.alloc_chunk(chunk_size);
IM_PLACEMENT_NEW(settings) ImGuiWindowSettings();
settings->ID = ImHashStr(name, name_len);
memcpy(settings->GetName(), name, name_len + 1); // Store with zero terminator
return settings;
}
// We don't provide a FindWindowSettingsByName() because Docking system doesn't always hold on names.
// This is called once per window .ini entry + once per newly instantiated window.
ImGuiWindowSettings* ImGui::FindWindowSettingsByID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
if (settings->ID == id)
return settings;
return NULL;
}
// This is faster if you are holding on a Window already as we don't need to perform a search.
ImGuiWindowSettings* ImGui::FindWindowSettingsByWindow(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
if (window->SettingsOffset != -1)
return g.SettingsWindows.ptr_from_offset(window->SettingsOffset);
return FindWindowSettingsByID(window->ID);
}
// This will revert window to its initial state, including enabling the ImGuiCond_FirstUseEver/ImGuiCond_Once conditions once more.
void ImGui::ClearWindowSettings(const char* name)
{
//IMGUI_DEBUG_LOG("ClearWindowSettings('%s')\n", name);
ImGuiWindow* window = FindWindowByName(name);
if (window != NULL)
{
window->Flags |= ImGuiWindowFlags_NoSavedSettings;
InitOrLoadWindowSettings(window, NULL);
}
if (ImGuiWindowSettings* settings = window ? FindWindowSettingsByWindow(window) : FindWindowSettingsByID(ImHashStr(name)))
settings->WantDelete = true;
}
static void WindowSettingsHandler_ClearAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
{
ImGuiContext& g = *ctx;
for (int i = 0; i != g.Windows.Size; i++)
g.Windows[i]->SettingsOffset = -1;
g.SettingsWindows.clear();
}
static void* WindowSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name)
{
ImGuiID id = ImHashStr(name);
ImGuiWindowSettings* settings = ImGui::FindWindowSettingsByID(id);
if (settings)
*settings = ImGuiWindowSettings(); // Clear existing if recycling previous entry
else
settings = ImGui::CreateNewWindowSettings(name);
settings->ID = id;
settings->WantApply = true;
return (void*)settings;
}
static void WindowSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line)
{
ImGuiWindowSettings* settings = (ImGuiWindowSettings*)entry;
int x, y;
int i;
if (sscanf(line, "Pos=%i,%i", &x, &y) == 2) { settings->Pos = ImVec2ih((short)x, (short)y); }
else if (sscanf(line, "Size=%i,%i", &x, &y) == 2) { settings->Size = ImVec2ih((short)x, (short)y); }
else if (sscanf(line, "Collapsed=%d", &i) == 1) { settings->Collapsed = (i != 0); }
}
// Apply to existing windows (if any)
static void WindowSettingsHandler_ApplyAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
{
ImGuiContext& g = *ctx;
for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
if (settings->WantApply)
{
if (ImGuiWindow* window = ImGui::FindWindowByID(settings->ID))
ApplyWindowSettings(window, settings);
settings->WantApply = false;
}
}
static void WindowSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* buf)
{
// Gather data from windows that were active during this session
// (if a window wasn't opened in this session we preserve its settings)
ImGuiContext& g = *ctx;
for (int i = 0; i != g.Windows.Size; i++)
{
ImGuiWindow* window = g.Windows[i];
if (window->Flags & ImGuiWindowFlags_NoSavedSettings)
continue;
ImGuiWindowSettings* settings = ImGui::FindWindowSettingsByWindow(window);
if (!settings)
{
settings = ImGui::CreateNewWindowSettings(window->Name);
window->SettingsOffset = g.SettingsWindows.offset_from_ptr(settings);
}
IM_ASSERT(settings->ID == window->ID);
settings->Pos = ImVec2ih(window->Pos);
settings->Size = ImVec2ih(window->SizeFull);
settings->Collapsed = window->Collapsed;
settings->WantDelete = false;
}
// Write to text buffer
buf->reserve(buf->size() + g.SettingsWindows.size() * 6); // ballpark reserve
for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
{
if (settings->WantDelete)
continue;
const char* settings_name = settings->GetName();
buf->appendf("[%s][%s]\n", handler->TypeName, settings_name);
buf->appendf("Pos=%d,%d\n", settings->Pos.x, settings->Pos.y);
buf->appendf("Size=%d,%d\n", settings->Size.x, settings->Size.y);
buf->appendf("Collapsed=%d\n", settings->Collapsed);
buf->append("\n");
}
}
//-----------------------------------------------------------------------------
// [SECTION] LOCALIZATION
//-----------------------------------------------------------------------------
void ImGui::LocalizeRegisterEntries(const ImGuiLocEntry* entries, int count)
{
ImGuiContext& g = *GImGui;
for (int n = 0; n < count; n++)
g.LocalizationTable[entries[n].Key] = entries[n].Text;
}
//-----------------------------------------------------------------------------
// [SECTION] VIEWPORTS, PLATFORM WINDOWS
//-----------------------------------------------------------------------------
// - GetMainViewport()
// - SetWindowViewport() [Internal]
// - UpdateViewportsNewFrame() [Internal]
// (this section is more complete in the 'docking' branch)
//-----------------------------------------------------------------------------
ImGuiViewport* ImGui::GetMainViewport()
{
ImGuiContext& g = *GImGui;
return g.Viewports[0];
}
void ImGui::SetWindowViewport(ImGuiWindow* window, ImGuiViewportP* viewport)
{
window->Viewport = viewport;
}
// Update viewports and monitor infos
static void ImGui::UpdateViewportsNewFrame()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.Viewports.Size == 1);
// Update main viewport with current platform position.
// FIXME-VIEWPORT: Size is driven by backend/user code for backward-compatibility but we should aim to make this more consistent.
ImGuiViewportP* main_viewport = g.Viewports[0];
main_viewport->Flags = ImGuiViewportFlags_IsPlatformWindow | ImGuiViewportFlags_OwnedByApp;
main_viewport->Pos = ImVec2(0.0f, 0.0f);
main_viewport->Size = g.IO.DisplaySize;
for (int n = 0; n < g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
// Lock down space taken by menu bars and status bars, reset the offset for fucntions like BeginMainMenuBar() to alter them again.
viewport->WorkOffsetMin = viewport->BuildWorkOffsetMin;
viewport->WorkOffsetMax = viewport->BuildWorkOffsetMax;
viewport->BuildWorkOffsetMin = viewport->BuildWorkOffsetMax = ImVec2(0.0f, 0.0f);
viewport->UpdateWorkRect();
}
}
//-----------------------------------------------------------------------------
// [SECTION] DOCKING
//-----------------------------------------------------------------------------
// (this section is filled in the 'docking' branch)
//-----------------------------------------------------------------------------
// [SECTION] PLATFORM DEPENDENT HELPERS
//-----------------------------------------------------------------------------
#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS)
#ifdef _MSC_VER
#pragma comment(lib, "user32")
#pragma comment(lib, "kernel32")
#endif
// Win32 clipboard implementation
// We use g.ClipboardHandlerData for temporary storage to ensure it is freed on Shutdown()
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx)
{
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
g.ClipboardHandlerData.clear();
if (!::OpenClipboard(NULL))
return NULL;
HANDLE wbuf_handle = ::GetClipboardData(CF_UNICODETEXT);
if (wbuf_handle == NULL)
{
::CloseClipboard();
return NULL;
}
if (const WCHAR* wbuf_global = (const WCHAR*)::GlobalLock(wbuf_handle))
{
int buf_len = ::WideCharToMultiByte(CP_UTF8, 0, wbuf_global, -1, NULL, 0, NULL, NULL);
g.ClipboardHandlerData.resize(buf_len);
::WideCharToMultiByte(CP_UTF8, 0, wbuf_global, -1, g.ClipboardHandlerData.Data, buf_len, NULL, NULL);
}
::GlobalUnlock(wbuf_handle);
::CloseClipboard();
return g.ClipboardHandlerData.Data;
}
static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
{
if (!::OpenClipboard(NULL))
return;
const int wbuf_length = ::MultiByteToWideChar(CP_UTF8, 0, text, -1, NULL, 0);
HGLOBAL wbuf_handle = ::GlobalAlloc(GMEM_MOVEABLE, (SIZE_T)wbuf_length * sizeof(WCHAR));
if (wbuf_handle == NULL)
{
::CloseClipboard();
return;
}
WCHAR* wbuf_global = (WCHAR*)::GlobalLock(wbuf_handle);
::MultiByteToWideChar(CP_UTF8, 0, text, -1, wbuf_global, wbuf_length);
::GlobalUnlock(wbuf_handle);
::EmptyClipboard();
if (::SetClipboardData(CF_UNICODETEXT, wbuf_handle) == NULL)
::GlobalFree(wbuf_handle);
::CloseClipboard();
}
#elif defined(__APPLE__) && TARGET_OS_OSX && defined(IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS)
#include <Carbon/Carbon.h> // Use old API to avoid need for separate .mm file
static PasteboardRef main_clipboard = 0;
// OSX clipboard implementation
// If you enable this you will need to add '-framework ApplicationServices' to your linker command-line!
static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
{
if (!main_clipboard)
PasteboardCreate(kPasteboardClipboard, &main_clipboard);
PasteboardClear(main_clipboard);
CFDataRef cf_data = CFDataCreate(kCFAllocatorDefault, (const UInt8*)text, strlen(text));
if (cf_data)
{
PasteboardPutItemFlavor(main_clipboard, (PasteboardItemID)1, CFSTR("public.utf8-plain-text"), cf_data, 0);
CFRelease(cf_data);
}
}
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx)
{
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
if (!main_clipboard)
PasteboardCreate(kPasteboardClipboard, &main_clipboard);
PasteboardSynchronize(main_clipboard);
ItemCount item_count = 0;
PasteboardGetItemCount(main_clipboard, &item_count);
for (ItemCount i = 0; i < item_count; i++)
{
PasteboardItemID item_id = 0;
PasteboardGetItemIdentifier(main_clipboard, i + 1, &item_id);
CFArrayRef flavor_type_array = 0;
PasteboardCopyItemFlavors(main_clipboard, item_id, &flavor_type_array);
for (CFIndex j = 0, nj = CFArrayGetCount(flavor_type_array); j < nj; j++)
{
CFDataRef cf_data;
if (PasteboardCopyItemFlavorData(main_clipboard, item_id, CFSTR("public.utf8-plain-text"), &cf_data) == noErr)
{
g.ClipboardHandlerData.clear();
int length = (int)CFDataGetLength(cf_data);
g.ClipboardHandlerData.resize(length + 1);
CFDataGetBytes(cf_data, CFRangeMake(0, length), (UInt8*)g.ClipboardHandlerData.Data);
g.ClipboardHandlerData[length] = 0;
CFRelease(cf_data);
return g.ClipboardHandlerData.Data;
}
}
}
return NULL;
}
#else
// Local Dear ImGui-only clipboard implementation, if user hasn't defined better clipboard handlers.
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx)
{
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
return g.ClipboardHandlerData.empty() ? NULL : g.ClipboardHandlerData.begin();
}
static void SetClipboardTextFn_DefaultImpl(void* user_data_ctx, const char* text)
{
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
g.ClipboardHandlerData.clear();
const char* text_end = text + strlen(text);
g.ClipboardHandlerData.resize((int)(text_end - text) + 1);
memcpy(&g.ClipboardHandlerData[0], text, (size_t)(text_end - text));
g.ClipboardHandlerData[(int)(text_end - text)] = 0;
}
#endif
// Win32 API IME support (for Asian languages, etc.)
#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS)
#include <imm.h>
#ifdef _MSC_VER
#pragma comment(lib, "imm32")
#endif
static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport* viewport, ImGuiPlatformImeData* data)
{
// Notify OS Input Method Editor of text input position
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
if (hwnd == 0)
return;
//::ImmAssociateContextEx(hwnd, NULL, data->WantVisible ? IACE_DEFAULT : 0);
if (HIMC himc = ::ImmGetContext(hwnd))
{
COMPOSITIONFORM composition_form = {};
composition_form.ptCurrentPos.x = (LONG)data->InputPos.x;
composition_form.ptCurrentPos.y = (LONG)data->InputPos.y;
composition_form.dwStyle = CFS_FORCE_POSITION;
::ImmSetCompositionWindow(himc, &composition_form);
CANDIDATEFORM candidate_form = {};
candidate_form.dwStyle = CFS_CANDIDATEPOS;
candidate_form.ptCurrentPos.x = (LONG)data->InputPos.x;
candidate_form.ptCurrentPos.y = (LONG)data->InputPos.y;
::ImmSetCandidateWindow(himc, &candidate_form);
::ImmReleaseContext(hwnd, himc);
}
}
#else
static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport*, ImGuiPlatformImeData*) {}
#endif
//-----------------------------------------------------------------------------
// [SECTION] METRICS/DEBUGGER WINDOW
//-----------------------------------------------------------------------------
// - RenderViewportThumbnail() [Internal]
// - RenderViewportsThumbnails() [Internal]
// - DebugTextEncoding()
// - MetricsHelpMarker() [Internal]
// - ShowFontAtlas() [Internal]
// - ShowMetricsWindow()
// - DebugNodeColumns() [Internal]
// - DebugNodeDrawList() [Internal]
// - DebugNodeDrawCmdShowMeshAndBoundingBox() [Internal]
// - DebugNodeFont() [Internal]
// - DebugNodeFontGlyph() [Internal]
// - DebugNodeStorage() [Internal]
// - DebugNodeTabBar() [Internal]
// - DebugNodeViewport() [Internal]
// - DebugNodeWindow() [Internal]
// - DebugNodeWindowSettings() [Internal]
// - DebugNodeWindowsList() [Internal]
// - DebugNodeWindowsListByBeginStackParent() [Internal]
//-----------------------------------------------------------------------------
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
void ImGui::DebugRenderViewportThumbnail(ImDrawList* draw_list, ImGuiViewportP* viewport, const ImRect& bb)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImVec2 scale = bb.GetSize() / viewport->Size;
ImVec2 off = bb.Min - viewport->Pos * scale;
float alpha_mul = 1.0f;
window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_Border, alpha_mul * 0.40f));
for (int i = 0; i != g.Windows.Size; i++)
{
ImGuiWindow* thumb_window = g.Windows[i];
if (!thumb_window->WasActive || (thumb_window->Flags & ImGuiWindowFlags_ChildWindow))
continue;
ImRect thumb_r = thumb_window->Rect();
ImRect title_r = thumb_window->TitleBarRect();
thumb_r = ImRect(ImFloor(off + thumb_r.Min * scale), ImFloor(off + thumb_r.Max * scale));
title_r = ImRect(ImFloor(off + title_r.Min * scale), ImFloor(off + ImVec2(title_r.Max.x, title_r.Min.y) * scale) + ImVec2(0,5)); // Exaggerate title bar height
thumb_r.ClipWithFull(bb);
title_r.ClipWithFull(bb);
const bool window_is_focused = (g.NavWindow && thumb_window->RootWindowForTitleBarHighlight == g.NavWindow->RootWindowForTitleBarHighlight);
window->DrawList->AddRectFilled(thumb_r.Min, thumb_r.Max, GetColorU32(ImGuiCol_WindowBg, alpha_mul));
window->DrawList->AddRectFilled(title_r.Min, title_r.Max, GetColorU32(window_is_focused ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg, alpha_mul));
window->DrawList->AddRect(thumb_r.Min, thumb_r.Max, GetColorU32(ImGuiCol_Border, alpha_mul));
window->DrawList->AddText(g.Font, g.FontSize * 1.0f, title_r.Min, GetColorU32(ImGuiCol_Text, alpha_mul), thumb_window->Name, FindRenderedTextEnd(thumb_window->Name));
}
draw_list->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_Border, alpha_mul));
}
static void RenderViewportsThumbnails()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// We don't display full monitor bounds (we could, but it often looks awkward), instead we display just enough to cover all of our viewports.
float SCALE = 1.0f / 8.0f;
ImRect bb_full(FLT_MAX, FLT_MAX, -FLT_MAX, -FLT_MAX);
for (int n = 0; n < g.Viewports.Size; n++)
bb_full.Add(g.Viewports[n]->GetMainRect());
ImVec2 p = window->DC.CursorPos;
ImVec2 off = p - bb_full.Min * SCALE;
for (int n = 0; n < g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
ImRect viewport_draw_bb(off + (viewport->Pos) * SCALE, off + (viewport->Pos + viewport->Size) * SCALE);
ImGui::DebugRenderViewportThumbnail(window->DrawList, viewport, viewport_draw_bb);
}
ImGui::Dummy(bb_full.GetSize() * SCALE);
}
// Draw an arbitrary US keyboard layout to visualize translated keys
void ImGui::DebugRenderKeyboardPreview(ImDrawList* draw_list)
{
const ImVec2 key_size = ImVec2(35.0f, 35.0f);
const float key_rounding = 3.0f;
const ImVec2 key_face_size = ImVec2(25.0f, 25.0f);
const ImVec2 key_face_pos = ImVec2(5.0f, 3.0f);
const float key_face_rounding = 2.0f;
const ImVec2 key_label_pos = ImVec2(7.0f, 4.0f);
const ImVec2 key_step = ImVec2(key_size.x - 1.0f, key_size.y - 1.0f);
const float key_row_offset = 9.0f;
ImVec2 board_min = GetCursorScreenPos();
ImVec2 board_max = ImVec2(board_min.x + 3 * key_step.x + 2 * key_row_offset + 10.0f, board_min.y + 3 * key_step.y + 10.0f);
ImVec2 start_pos = ImVec2(board_min.x + 5.0f - key_step.x, board_min.y);
struct KeyLayoutData { int Row, Col; const char* Label; ImGuiKey Key; };
const KeyLayoutData keys_to_display[] =
{
{ 0, 0, "", ImGuiKey_Tab }, { 0, 1, "Q", ImGuiKey_Q }, { 0, 2, "W", ImGuiKey_W }, { 0, 3, "E", ImGuiKey_E }, { 0, 4, "R", ImGuiKey_R },
{ 1, 0, "", ImGuiKey_CapsLock }, { 1, 1, "A", ImGuiKey_A }, { 1, 2, "S", ImGuiKey_S }, { 1, 3, "D", ImGuiKey_D }, { 1, 4, "F", ImGuiKey_F },
{ 2, 0, "", ImGuiKey_LeftShift },{ 2, 1, "Z", ImGuiKey_Z }, { 2, 2, "X", ImGuiKey_X }, { 2, 3, "C", ImGuiKey_C }, { 2, 4, "V", ImGuiKey_V }
};
// Elements rendered manually via ImDrawList API are not clipped automatically.
// While not strictly necessary, here IsItemVisible() is used to avoid rendering these shapes when they are out of view.
Dummy(board_max - board_min);
if (!IsItemVisible())
return;
draw_list->PushClipRect(board_min, board_max, true);
for (int n = 0; n < IM_ARRAYSIZE(keys_to_display); n++)
{
const KeyLayoutData* key_data = &keys_to_display[n];
ImVec2 key_min = ImVec2(start_pos.x + key_data->Col * key_step.x + key_data->Row * key_row_offset, start_pos.y + key_data->Row * key_step.y);
ImVec2 key_max = key_min + key_size;
draw_list->AddRectFilled(key_min, key_max, IM_COL32(204, 204, 204, 255), key_rounding);
draw_list->AddRect(key_min, key_max, IM_COL32(24, 24, 24, 255), key_rounding);
ImVec2 face_min = ImVec2(key_min.x + key_face_pos.x, key_min.y + key_face_pos.y);
ImVec2 face_max = ImVec2(face_min.x + key_face_size.x, face_min.y + key_face_size.y);
draw_list->AddRect(face_min, face_max, IM_COL32(193, 193, 193, 255), key_face_rounding, ImDrawFlags_None, 2.0f);
draw_list->AddRectFilled(face_min, face_max, IM_COL32(252, 252, 252, 255), key_face_rounding);
ImVec2 label_min = ImVec2(key_min.x + key_label_pos.x, key_min.y + key_label_pos.y);
draw_list->AddText(label_min, IM_COL32(64, 64, 64, 255), key_data->Label);
if (ImGui::IsKeyDown(key_data->Key))
draw_list->AddRectFilled(key_min, key_max, IM_COL32(255, 0, 0, 128), key_rounding);
}
draw_list->PopClipRect();
}
// Helper tool to diagnose between text encoding issues and font loading issues. Pass your UTF-8 string and verify that there are correct.
void ImGui::DebugTextEncoding(const char* str)
{
Text("Text: \"%s\"", str);
if (!BeginTable("list", 4, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit))
return;
TableSetupColumn("Offset");
TableSetupColumn("UTF-8");
TableSetupColumn("Glyph");
TableSetupColumn("Codepoint");
TableHeadersRow();
for (const char* p = str; *p != 0; )
{
unsigned int c;
const int c_utf8_len = ImTextCharFromUtf8(&c, p, NULL);
TableNextColumn();
Text("%d", (int)(p - str));
TableNextColumn();
for (int byte_index = 0; byte_index < c_utf8_len; byte_index++)
{
if (byte_index > 0)
SameLine();
Text("0x%02X", (int)(unsigned char)p[byte_index]);
}
TableNextColumn();
if (GetFont()->FindGlyphNoFallback((ImWchar)c))
TextUnformatted(p, p + c_utf8_len);
else
TextUnformatted((c == IM_UNICODE_CODEPOINT_INVALID) ? "[invalid]" : "[missing]");
TableNextColumn();
Text("U+%04X", (int)c);
p += c_utf8_len;
}
EndTable();
}
// Avoid naming collision with imgui_demo.cpp's HelpMarker() for unity builds.
static void MetricsHelpMarker(const char* desc)
{
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort) && ImGui::BeginTooltip())
{
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
// [DEBUG] List fonts in a font atlas and display its texture
void ImGui::ShowFontAtlas(ImFontAtlas* atlas)
{
for (int i = 0; i < atlas->Fonts.Size; i++)
{
ImFont* font = atlas->Fonts[i];
PushID(font);
DebugNodeFont(font);
PopID();
}
if (TreeNode("Font Atlas", "Font Atlas (%dx%d pixels)", atlas->TexWidth, atlas->TexHeight))
{
ImGuiContext& g = *GImGui;
ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
Checkbox("Tint with Text Color", &cfg->ShowAtlasTintedWithTextColor); // Using text color ensure visibility of core atlas data, but will alter custom colored icons
ImVec4 tint_col = cfg->ShowAtlasTintedWithTextColor ? GetStyleColorVec4(ImGuiCol_Text) : ImVec4(1.0f, 1.0f, 1.0f, 1.0f);
ImVec4 border_col = GetStyleColorVec4(ImGuiCol_Border);
Image(atlas->TexID, ImVec2((float)atlas->TexWidth, (float)atlas->TexHeight), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f), tint_col, border_col);
TreePop();
}
}
void ImGui::ShowMetricsWindow(bool* p_open)
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
if (cfg->ShowDebugLog)
ShowDebugLogWindow(&cfg->ShowDebugLog);
if (cfg->ShowStackTool)
ShowStackToolWindow(&cfg->ShowStackTool);
if (!Begin("Dear ImGui Metrics/Debugger", p_open) || GetCurrentWindow()->BeginCount > 1)
{
End();
return;
}
// Basic info
Text("Dear ImGui %s", GetVersion());
Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
Text("%d vertices, %d indices (%d triangles)", io.MetricsRenderVertices, io.MetricsRenderIndices, io.MetricsRenderIndices / 3);
Text("%d visible windows, %d active allocations", io.MetricsRenderWindows, io.MetricsActiveAllocations);
//SameLine(); if (SmallButton("GC")) { g.GcCompactAll = true; }
Separator();
// Debugging enums
enum { WRT_OuterRect, WRT_OuterRectClipped, WRT_InnerRect, WRT_InnerClipRect, WRT_WorkRect, WRT_Content, WRT_ContentIdeal, WRT_ContentRegionRect, WRT_Count }; // Windows Rect Type
const char* wrt_rects_names[WRT_Count] = { "OuterRect", "OuterRectClipped", "InnerRect", "InnerClipRect", "WorkRect", "Content", "ContentIdeal", "ContentRegionRect" };
enum { TRT_OuterRect, TRT_InnerRect, TRT_WorkRect, TRT_HostClipRect, TRT_InnerClipRect, TRT_BackgroundClipRect, TRT_ColumnsRect, TRT_ColumnsWorkRect, TRT_ColumnsClipRect, TRT_ColumnsContentHeadersUsed, TRT_ColumnsContentHeadersIdeal, TRT_ColumnsContentFrozen, TRT_ColumnsContentUnfrozen, TRT_Count }; // Tables Rect Type
const char* trt_rects_names[TRT_Count] = { "OuterRect", "InnerRect", "WorkRect", "HostClipRect", "InnerClipRect", "BackgroundClipRect", "ColumnsRect", "ColumnsWorkRect", "ColumnsClipRect", "ColumnsContentHeadersUsed", "ColumnsContentHeadersIdeal", "ColumnsContentFrozen", "ColumnsContentUnfrozen" };
if (cfg->ShowWindowsRectsType < 0)
cfg->ShowWindowsRectsType = WRT_WorkRect;
if (cfg->ShowTablesRectsType < 0)
cfg->ShowTablesRectsType = TRT_WorkRect;
struct Funcs
{
static ImRect GetTableRect(ImGuiTable* table, int rect_type, int n)
{
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent); // Always using last submitted instance
if (rect_type == TRT_OuterRect) { return table->OuterRect; }
else if (rect_type == TRT_InnerRect) { return table->InnerRect; }
else if (rect_type == TRT_WorkRect) { return table->WorkRect; }
else if (rect_type == TRT_HostClipRect) { return table->HostClipRect; }
else if (rect_type == TRT_InnerClipRect) { return table->InnerClipRect; }
else if (rect_type == TRT_BackgroundClipRect) { return table->BgClipRect; }
else if (rect_type == TRT_ColumnsRect) { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->MinX, table->InnerClipRect.Min.y, c->MaxX, table->InnerClipRect.Min.y + table_instance->LastOuterHeight); }
else if (rect_type == TRT_ColumnsWorkRect) { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->WorkRect.Min.y, c->WorkMaxX, table->WorkRect.Max.y); }
else if (rect_type == TRT_ColumnsClipRect) { ImGuiTableColumn* c = &table->Columns[n]; return c->ClipRect; }
else if (rect_type == TRT_ColumnsContentHeadersUsed){ ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y, c->ContentMaxXHeadersUsed, table->InnerClipRect.Min.y + table_instance->LastFirstRowHeight); } // Note: y1/y2 not always accurate
else if (rect_type == TRT_ColumnsContentHeadersIdeal){ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y, c->ContentMaxXHeadersIdeal, table->InnerClipRect.Min.y + table_instance->LastFirstRowHeight); }
else if (rect_type == TRT_ColumnsContentFrozen) { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y, c->ContentMaxXFrozen, table->InnerClipRect.Min.y + table_instance->LastFrozenHeight); }
else if (rect_type == TRT_ColumnsContentUnfrozen) { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y + table_instance->LastFrozenHeight, c->ContentMaxXUnfrozen, table->InnerClipRect.Max.y); }
IM_ASSERT(0);
return ImRect();
}
static ImRect GetWindowRect(ImGuiWindow* window, int rect_type)
{
if (rect_type == WRT_OuterRect) { return window->Rect(); }
else if (rect_type == WRT_OuterRectClipped) { return window->OuterRectClipped; }
else if (rect_type == WRT_InnerRect) { return window->InnerRect; }
else if (rect_type == WRT_InnerClipRect) { return window->InnerClipRect; }
else if (rect_type == WRT_WorkRect) { return window->WorkRect; }
else if (rect_type == WRT_Content) { ImVec2 min = window->InnerRect.Min - window->Scroll + window->WindowPadding; return ImRect(min, min + window->ContentSize); }
else if (rect_type == WRT_ContentIdeal) { ImVec2 min = window->InnerRect.Min - window->Scroll + window->WindowPadding; return ImRect(min, min + window->ContentSizeIdeal); }
else if (rect_type == WRT_ContentRegionRect) { return window->ContentRegionRect; }
IM_ASSERT(0);
return ImRect();
}
};
// Tools
if (TreeNode("Tools"))
{
bool show_encoding_viewer = TreeNode("UTF-8 Encoding viewer");
SameLine();
MetricsHelpMarker("You can also call ImGui::DebugTextEncoding() from your code with a given string to test that your UTF-8 encoding settings are correct.");
if (show_encoding_viewer)
{
static char buf[100] = "";
SetNextItemWidth(-FLT_MIN);
InputText("##Text", buf, IM_ARRAYSIZE(buf));
if (buf[0] != 0)
DebugTextEncoding(buf);
TreePop();
}
// The Item Picker tool is super useful to visually select an item and break into the call-stack of where it was submitted.
if (Checkbox("Show Item Picker", &g.DebugItemPickerActive) && g.DebugItemPickerActive)
DebugStartItemPicker();
SameLine();
MetricsHelpMarker("Will call the IM_DEBUG_BREAK() macro to break in debugger.\nWarning: If you don't have a debugger attached, this will probably crash.");
// Stack Tool is your best friend!
Checkbox("Show Debug Log", &cfg->ShowDebugLog);
SameLine();
MetricsHelpMarker("You can also call ImGui::ShowDebugLogWindow() from your code.");
// Stack Tool is your best friend!
Checkbox("Show Stack Tool", &cfg->ShowStackTool);
SameLine();
MetricsHelpMarker("You can also call ImGui::ShowStackToolWindow() from your code.");
Checkbox("Show windows begin order", &cfg->ShowWindowsBeginOrder);
Checkbox("Show windows rectangles", &cfg->ShowWindowsRects);
SameLine();
SetNextItemWidth(GetFontSize() * 12);
cfg->ShowWindowsRects |= Combo("##show_windows_rect_type", &cfg->ShowWindowsRectsType, wrt_rects_names, WRT_Count, WRT_Count);
if (cfg->ShowWindowsRects && g.NavWindow != NULL)
{
BulletText("'%s':", g.NavWindow->Name);
Indent();
for (int rect_n = 0; rect_n < WRT_Count; rect_n++)
{
ImRect r = Funcs::GetWindowRect(g.NavWindow, rect_n);
Text("(%6.1f,%6.1f) (%6.1f,%6.1f) Size (%6.1f,%6.1f) %s", r.Min.x, r.Min.y, r.Max.x, r.Max.y, r.GetWidth(), r.GetHeight(), wrt_rects_names[rect_n]);
}
Unindent();
}
Checkbox("Show tables rectangles", &cfg->ShowTablesRects);
SameLine();
SetNextItemWidth(GetFontSize() * 12);
cfg->ShowTablesRects |= Combo("##show_table_rects_type", &cfg->ShowTablesRectsType, trt_rects_names, TRT_Count, TRT_Count);
if (cfg->ShowTablesRects && g.NavWindow != NULL)
{
for (int table_n = 0; table_n < g.Tables.GetMapSize(); table_n++)
{
ImGuiTable* table = g.Tables.TryGetMapData(table_n);
if (table == NULL || table->LastFrameActive < g.FrameCount - 1 || (table->OuterWindow != g.NavWindow && table->InnerWindow != g.NavWindow))
continue;
BulletText("Table 0x%08X (%d columns, in '%s')", table->ID, table->ColumnsCount, table->OuterWindow->Name);
if (IsItemHovered())
GetForegroundDrawList()->AddRect(table->OuterRect.Min - ImVec2(1, 1), table->OuterRect.Max + ImVec2(1, 1), IM_COL32(255, 255, 0, 255), 0.0f, 0, 2.0f);
Indent();
char buf[128];
for (int rect_n = 0; rect_n < TRT_Count; rect_n++)
{
if (rect_n >= TRT_ColumnsRect)
{
if (rect_n != TRT_ColumnsRect && rect_n != TRT_ColumnsClipRect)
continue;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImRect r = Funcs::GetTableRect(table, rect_n, column_n);
ImFormatString(buf, IM_ARRAYSIZE(buf), "(%6.1f,%6.1f) (%6.1f,%6.1f) Size (%6.1f,%6.1f) Col %d %s", r.Min.x, r.Min.y, r.Max.x, r.Max.y, r.GetWidth(), r.GetHeight(), column_n, trt_rects_names[rect_n]);
Selectable(buf);
if (IsItemHovered())
GetForegroundDrawList()->AddRect(r.Min - ImVec2(1, 1), r.Max + ImVec2(1, 1), IM_COL32(255, 255, 0, 255), 0.0f, 0, 2.0f);
}
}
else
{
ImRect r = Funcs::GetTableRect(table, rect_n, -1);
ImFormatString(buf, IM_ARRAYSIZE(buf), "(%6.1f,%6.1f) (%6.1f,%6.1f) Size (%6.1f,%6.1f) %s", r.Min.x, r.Min.y, r.Max.x, r.Max.y, r.GetWidth(), r.GetHeight(), trt_rects_names[rect_n]);
Selectable(buf);
if (IsItemHovered())
GetForegroundDrawList()->AddRect(r.Min - ImVec2(1, 1), r.Max + ImVec2(1, 1), IM_COL32(255, 255, 0, 255), 0.0f, 0, 2.0f);
}
}
Unindent();
}
}
Checkbox("Debug Begin/BeginChild return value", &io.ConfigDebugBeginReturnValueLoop);
SameLine();
MetricsHelpMarker("Some calls to Begin()/BeginChild() will return false.\n\nWill cycle through window depths then repeat. Windows should be flickering while running.");
TreePop();
}
// Windows
if (TreeNode("Windows", "Windows (%d)", g.Windows.Size))
{
//SetNextItemOpen(true, ImGuiCond_Once);
DebugNodeWindowsList(&g.Windows, "By display order");
DebugNodeWindowsList(&g.WindowsFocusOrder, "By focus order (root windows)");
if (TreeNode("By submission order (begin stack)"))
{
// Here we display windows in their submitted order/hierarchy, however note that the Begin stack doesn't constitute a Parent<>Child relationship!
ImVector<ImGuiWindow*>& temp_buffer = g.WindowsTempSortBuffer;
temp_buffer.resize(0);
for (int i = 0; i < g.Windows.Size; i++)
if (g.Windows[i]->LastFrameActive + 1 >= g.FrameCount)
temp_buffer.push_back(g.Windows[i]);
struct Func { static int IMGUI_CDECL WindowComparerByBeginOrder(const void* lhs, const void* rhs) { return ((int)(*(const ImGuiWindow* const *)lhs)->BeginOrderWithinContext - (*(const ImGuiWindow* const*)rhs)->BeginOrderWithinContext); } };
ImQsort(temp_buffer.Data, (size_t)temp_buffer.Size, sizeof(ImGuiWindow*), Func::WindowComparerByBeginOrder);
DebugNodeWindowsListByBeginStackParent(temp_buffer.Data, temp_buffer.Size, NULL);
TreePop();
}
TreePop();
}
// DrawLists
int drawlist_count = 0;
for (int viewport_i = 0; viewport_i < g.Viewports.Size; viewport_i++)
drawlist_count += g.Viewports[viewport_i]->DrawDataBuilder.GetDrawListCount();
if (TreeNode("DrawLists", "DrawLists (%d)", drawlist_count))
{
Checkbox("Show ImDrawCmd mesh when hovering", &cfg->ShowDrawCmdMesh);
Checkbox("Show ImDrawCmd bounding boxes when hovering", &cfg->ShowDrawCmdBoundingBoxes);
for (int viewport_i = 0; viewport_i < g.Viewports.Size; viewport_i++)
{
ImGuiViewportP* viewport = g.Viewports[viewport_i];
for (int layer_i = 0; layer_i < IM_ARRAYSIZE(viewport->DrawDataBuilder.Layers); layer_i++)
for (int draw_list_i = 0; draw_list_i < viewport->DrawDataBuilder.Layers[layer_i].Size; draw_list_i++)
DebugNodeDrawList(NULL, viewport->DrawDataBuilder.Layers[layer_i][draw_list_i], "DrawList");
}
TreePop();
}
// Viewports
if (TreeNode("Viewports", "Viewports (%d)", g.Viewports.Size))
{
Indent(GetTreeNodeToLabelSpacing());
RenderViewportsThumbnails();
Unindent(GetTreeNodeToLabelSpacing());
for (int i = 0; i < g.Viewports.Size; i++)
DebugNodeViewport(g.Viewports[i]);
TreePop();
}
// Details for Popups
if (TreeNode("Popups", "Popups (%d)", g.OpenPopupStack.Size))
{
for (int i = 0; i < g.OpenPopupStack.Size; i++)
{
// As it's difficult to interact with tree nodes while popups are open, we display everything inline.
const ImGuiPopupData* popup_data = &g.OpenPopupStack[i];
ImGuiWindow* window = popup_data->Window;
BulletText("PopupID: %08x, Window: '%s' (%s%s), BackupNavWindow '%s', ParentWindow '%s'",
popup_data->PopupId, window ? window->Name : "NULL", window && (window->Flags & ImGuiWindowFlags_ChildWindow) ? "Child;" : "", window && (window->Flags & ImGuiWindowFlags_ChildMenu) ? "Menu;" : "",
popup_data->BackupNavWindow ? popup_data->BackupNavWindow->Name : "NULL", window && window->ParentWindow ? window->ParentWindow->Name : "NULL");
}
TreePop();
}
// Details for TabBars
if (TreeNode("TabBars", "Tab Bars (%d)", g.TabBars.GetAliveCount()))
{
for (int n = 0; n < g.TabBars.GetMapSize(); n++)
if (ImGuiTabBar* tab_bar = g.TabBars.TryGetMapData(n))
{
PushID(tab_bar);
DebugNodeTabBar(tab_bar, "TabBar");
PopID();
}
TreePop();
}
// Details for Tables
if (TreeNode("Tables", "Tables (%d)", g.Tables.GetAliveCount()))
{
for (int n = 0; n < g.Tables.GetMapSize(); n++)
if (ImGuiTable* table = g.Tables.TryGetMapData(n))
DebugNodeTable(table);
TreePop();
}
// Details for Fonts
ImFontAtlas* atlas = g.IO.Fonts;
if (TreeNode("Fonts", "Fonts (%d)", atlas->Fonts.Size))
{
ShowFontAtlas(atlas);
TreePop();
}
// Details for InputText
if (TreeNode("InputText"))
{
DebugNodeInputTextState(&g.InputTextState);
TreePop();
}
// Details for Docking
#ifdef IMGUI_HAS_DOCK
if (TreeNode("Docking"))
{
TreePop();
}
#endif // #ifdef IMGUI_HAS_DOCK
// Settings
if (TreeNode("Settings"))
{
if (SmallButton("Clear"))
ClearIniSettings();
SameLine();
if (SmallButton("Save to memory"))
SaveIniSettingsToMemory();
SameLine();
if (SmallButton("Save to disk"))
SaveIniSettingsToDisk(g.IO.IniFilename);
SameLine();
if (g.IO.IniFilename)
Text("\"%s\"", g.IO.IniFilename);
else
TextUnformatted("<NULL>");
Text("SettingsDirtyTimer %.2f", g.SettingsDirtyTimer);
if (TreeNode("SettingsHandlers", "Settings handlers: (%d)", g.SettingsHandlers.Size))
{
for (int n = 0; n < g.SettingsHandlers.Size; n++)
BulletText("%s", g.SettingsHandlers[n].TypeName);
TreePop();
}
if (TreeNode("SettingsWindows", "Settings packed data: Windows: %d bytes", g.SettingsWindows.size()))
{
for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
DebugNodeWindowSettings(settings);
TreePop();
}
if (TreeNode("SettingsTables", "Settings packed data: Tables: %d bytes", g.SettingsTables.size()))
{
for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
DebugNodeTableSettings(settings);
TreePop();
}
#ifdef IMGUI_HAS_DOCK
#endif // #ifdef IMGUI_HAS_DOCK
if (TreeNode("SettingsIniData", "Settings unpacked data (.ini): %d bytes", g.SettingsIniData.size()))
{
InputTextMultiline("##Ini", (char*)(void*)g.SettingsIniData.c_str(), g.SettingsIniData.Buf.Size, ImVec2(-FLT_MIN, GetTextLineHeight() * 20), ImGuiInputTextFlags_ReadOnly);
TreePop();
}
TreePop();
}
if (TreeNode("Inputs"))
{
Text("KEYBOARD/GAMEPAD/MOUSE KEYS");
{
// We iterate both legacy native range and named ImGuiKey ranges, which is a little odd but this allows displaying the data for old/new backends.
// User code should never have to go through such hoops! You can generally iterate between ImGuiKey_NamedKey_BEGIN and ImGuiKey_NamedKey_END.
Indent();
#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
#else
struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key < 512 && GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
//Text("Legacy raw:"); for (ImGuiKey key = ImGuiKey_KeysData_OFFSET; key < ImGuiKey_COUNT; key++) { if (io.KeysDown[key]) { SameLine(); Text("\"%s\" %d", GetKeyName(key), key); } }
#endif
Text("Keys down:"); for (ImGuiKey key = ImGuiKey_KeysData_OFFSET; key < ImGuiKey_COUNT; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !IsKeyDown(key)) continue; SameLine(); Text(IsNamedKey(key) ? "\"%s\"" : "\"%s\" %d", GetKeyName(key), key); SameLine(); Text("(%.02f)", GetKeyData(key)->DownDuration); }
Text("Keys pressed:"); for (ImGuiKey key = ImGuiKey_KeysData_OFFSET; key < ImGuiKey_COUNT; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !IsKeyPressed(key)) continue; SameLine(); Text(IsNamedKey(key) ? "\"%s\"" : "\"%s\" %d", GetKeyName(key), key); }
Text("Keys released:"); for (ImGuiKey key = ImGuiKey_KeysData_OFFSET; key < ImGuiKey_COUNT; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !IsKeyReleased(key)) continue; SameLine(); Text(IsNamedKey(key) ? "\"%s\"" : "\"%s\" %d", GetKeyName(key), key); }
Text("Keys mods: %s%s%s%s", io.KeyCtrl ? "CTRL " : "", io.KeyShift ? "SHIFT " : "", io.KeyAlt ? "ALT " : "", io.KeySuper ? "SUPER " : "");
Text("Chars queue:"); for (int i = 0; i < io.InputQueueCharacters.Size; i++) { ImWchar c = io.InputQueueCharacters[i]; SameLine(); Text("\'%c\' (0x%04X)", (c > ' ' && c <= 255) ? (char)c : '?', c); } // FIXME: We should convert 'c' to UTF-8 here but the functions are not public.
DebugRenderKeyboardPreview(GetWindowDrawList());
Unindent();
}
Text("MOUSE STATE");
{
Indent();
if (IsMousePosValid())
Text("Mouse pos: (%g, %g)", io.MousePos.x, io.MousePos.y);
else
Text("Mouse pos: <INVALID>");
Text("Mouse delta: (%g, %g)", io.MouseDelta.x, io.MouseDelta.y);
int count = IM_ARRAYSIZE(io.MouseDown);
Text("Mouse down:"); for (int i = 0; i < count; i++) if (IsMouseDown(i)) { SameLine(); Text("b%d (%.02f secs)", i, io.MouseDownDuration[i]); }
Text("Mouse clicked:"); for (int i = 0; i < count; i++) if (IsMouseClicked(i)) { SameLine(); Text("b%d (%d)", i, io.MouseClickedCount[i]); }
Text("Mouse released:"); for (int i = 0; i < count; i++) if (IsMouseReleased(i)) { SameLine(); Text("b%d", i); }
Text("Mouse wheel: %.1f", io.MouseWheel);
Text("Pen Pressure: %.1f", io.PenPressure); // Note: currently unused
Unindent();
}
Text("MOUSE WHEELING");
{
Indent();
Text("WheelingWindow: '%s'", g.WheelingWindow ? g.WheelingWindow->Name : "NULL");
Text("WheelingWindowReleaseTimer: %.2f", g.WheelingWindowReleaseTimer);
Text("WheelingAxisAvg[] = { %.3f, %.3f }, Main Axis: %s", g.WheelingAxisAvg.x, g.WheelingAxisAvg.y, (g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? "X" : (g.WheelingAxisAvg.x < g.WheelingAxisAvg.y) ? "Y" : "<none>");
Unindent();
}
Text("KEY OWNERS");
{
Indent();
if (BeginListBox("##owners", ImVec2(-FLT_MIN, GetTextLineHeightWithSpacing() * 6)))
{
for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
{
ImGuiKeyOwnerData* owner_data = GetKeyOwnerData(key);
if (owner_data->OwnerCurr == ImGuiKeyOwner_None)
continue;
Text("%s: 0x%08X%s", GetKeyName(key), owner_data->OwnerCurr,
owner_data->LockUntilRelease ? " LockUntilRelease" : owner_data->LockThisFrame ? " LockThisFrame" : "");
DebugLocateItemOnHover(owner_data->OwnerCurr);
}
EndListBox();
}
Unindent();
}
Text("SHORTCUT ROUTING");
{
Indent();
if (BeginListBox("##routes", ImVec2(-FLT_MIN, GetTextLineHeightWithSpacing() * 6)))
{
for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
{
ImGuiKeyRoutingTable* rt = &g.KeysRoutingTable;
for (ImGuiKeyRoutingIndex idx = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; idx != -1; )
{
char key_chord_name[64];
ImGuiKeyRoutingData* routing_data = &rt->Entries[idx];
GetKeyChordName(key | routing_data->Mods, key_chord_name, IM_ARRAYSIZE(key_chord_name));
Text("%s: 0x%08X", key_chord_name, routing_data->RoutingCurr);
DebugLocateItemOnHover(routing_data->RoutingCurr);
idx = routing_data->NextEntryIndex;
}
}
EndListBox();
}
Text("(ActiveIdUsing: AllKeyboardKeys: %d, NavDirMask: 0x%X)", g.ActiveIdUsingAllKeyboardKeys, g.ActiveIdUsingNavDirMask);
Unindent();
}
TreePop();
}
if (TreeNode("Internal state"))
{
Text("WINDOWING");
Indent();
Text("HoveredWindow: '%s'", g.HoveredWindow ? g.HoveredWindow->Name : "NULL");
Text("HoveredWindow->Root: '%s'", g.HoveredWindow ? g.HoveredWindow->RootWindow->Name : "NULL");
Text("HoveredWindowUnderMovingWindow: '%s'", g.HoveredWindowUnderMovingWindow ? g.HoveredWindowUnderMovingWindow->Name : "NULL");
Text("MovingWindow: '%s'", g.MovingWindow ? g.MovingWindow->Name : "NULL");
Unindent();
Text("ITEMS");
Indent();
Text("ActiveId: 0x%08X/0x%08X (%.2f sec), AllowOverlap: %d, Source: %s", g.ActiveId, g.ActiveIdPreviousFrame, g.ActiveIdTimer, g.ActiveIdAllowOverlap, GetInputSourceName(g.ActiveIdSource));
DebugLocateItemOnHover(g.ActiveId);
Text("ActiveIdWindow: '%s'", g.ActiveIdWindow ? g.ActiveIdWindow->Name : "NULL");
Text("ActiveIdUsing: AllKeyboardKeys: %d, NavDirMask: %X", g.ActiveIdUsingAllKeyboardKeys, g.ActiveIdUsingNavDirMask);
Text("HoveredId: 0x%08X (%.2f sec), AllowOverlap: %d", g.HoveredIdPreviousFrame, g.HoveredIdTimer, g.HoveredIdAllowOverlap); // Not displaying g.HoveredId as it is update mid-frame
Text("HoverDelayId: 0x%08X, Timer: %.2f, ClearTimer: %.2f", g.HoverDelayId, g.HoverDelayTimer, g.HoverDelayClearTimer);
Text("DragDrop: %d, SourceId = 0x%08X, Payload \"%s\" (%d bytes)", g.DragDropActive, g.DragDropPayload.SourceId, g.DragDropPayload.DataType, g.DragDropPayload.DataSize);
DebugLocateItemOnHover(g.DragDropPayload.SourceId);
Unindent();
Text("NAV,FOCUS");
Indent();
Text("NavWindow: '%s'", g.NavWindow ? g.NavWindow->Name : "NULL");
Text("NavId: 0x%08X, NavLayer: %d", g.NavId, g.NavLayer);
DebugLocateItemOnHover(g.NavId);
Text("NavInputSource: %s", GetInputSourceName(g.NavInputSource));
Text("NavActive: %d, NavVisible: %d", g.IO.NavActive, g.IO.NavVisible);
Text("NavActivateId/DownId/PressedId: %08X/%08X/%08X", g.NavActivateId, g.NavActivateDownId, g.NavActivatePressedId);
Text("NavActivateFlags: %04X", g.NavActivateFlags);
Text("NavDisableHighlight: %d, NavDisableMouseHover: %d", g.NavDisableHighlight, g.NavDisableMouseHover);
Text("NavFocusScopeId = 0x%08X", g.NavFocusScopeId);
Text("NavWindowingTarget: '%s'", g.NavWindowingTarget ? g.NavWindowingTarget->Name : "NULL");
Unindent();
TreePop();
}
// Overlay: Display windows Rectangles and Begin Order
if (cfg->ShowWindowsRects || cfg->ShowWindowsBeginOrder)
{
for (int n = 0; n < g.Windows.Size; n++)
{
ImGuiWindow* window = g.Windows[n];
if (!window->WasActive)
continue;
ImDrawList* draw_list = GetForegroundDrawList(window);
if (cfg->ShowWindowsRects)
{
ImRect r = Funcs::GetWindowRect(window, cfg->ShowWindowsRectsType);
draw_list->AddRect(r.Min, r.Max, IM_COL32(255, 0, 128, 255));
}
if (cfg->ShowWindowsBeginOrder && !(window->Flags & ImGuiWindowFlags_ChildWindow))
{
char buf[32];
ImFormatString(buf, IM_ARRAYSIZE(buf), "%d", window->BeginOrderWithinContext);
float font_size = GetFontSize();
draw_list->AddRectFilled(window->Pos, window->Pos + ImVec2(font_size, font_size), IM_COL32(200, 100, 100, 255));
draw_list->AddText(window->Pos, IM_COL32(255, 255, 255, 255), buf);
}
}
}
// Overlay: Display Tables Rectangles
if (cfg->ShowTablesRects)
{
for (int table_n = 0; table_n < g.Tables.GetMapSize(); table_n++)
{
ImGuiTable* table = g.Tables.TryGetMapData(table_n);
if (table == NULL || table->LastFrameActive < g.FrameCount - 1)
continue;
ImDrawList* draw_list = GetForegroundDrawList(table->OuterWindow);
if (cfg->ShowTablesRectsType >= TRT_ColumnsRect)
{
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
ImRect r = Funcs::GetTableRect(table, cfg->ShowTablesRectsType, column_n);
ImU32 col = (table->HoveredColumnBody == column_n) ? IM_COL32(255, 255, 128, 255) : IM_COL32(255, 0, 128, 255);
float thickness = (table->HoveredColumnBody == column_n) ? 3.0f : 1.0f;
draw_list->AddRect(r.Min, r.Max, col, 0.0f, 0, thickness);
}
}
else
{
ImRect r = Funcs::GetTableRect(table, cfg->ShowTablesRectsType, -1);
draw_list->AddRect(r.Min, r.Max, IM_COL32(255, 0, 128, 255));
}
}
}
#ifdef IMGUI_HAS_DOCK
// Overlay: Display Docking info
if (show_docking_nodes && g.IO.KeyCtrl)
{
}
#endif // #ifdef IMGUI_HAS_DOCK
End();
}
// [DEBUG] Display contents of Columns
void ImGui::DebugNodeColumns(ImGuiOldColumns* columns)
{
if (!TreeNode((void*)(uintptr_t)columns->ID, "Columns Id: 0x%08X, Count: %d, Flags: 0x%04X", columns->ID, columns->Count, columns->Flags))
return;
BulletText("Width: %.1f (MinX: %.1f, MaxX: %.1f)", columns->OffMaxX - columns->OffMinX, columns->OffMinX, columns->OffMaxX);
for (int column_n = 0; column_n < columns->Columns.Size; column_n++)
BulletText("Column %02d: OffsetNorm %.3f (= %.1f px)", column_n, columns->Columns[column_n].OffsetNorm, GetColumnOffsetFromNorm(columns, columns->Columns[column_n].OffsetNorm));
TreePop();
}
// [DEBUG] Display contents of ImDrawList
void ImGui::DebugNodeDrawList(ImGuiWindow* window, const ImDrawList* draw_list, const char* label)
{
ImGuiContext& g = *GImGui;
ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
int cmd_count = draw_list->CmdBuffer.Size;
if (cmd_count > 0 && draw_list->CmdBuffer.back().ElemCount == 0 && draw_list->CmdBuffer.back().UserCallback == NULL)
cmd_count--;
bool node_open = TreeNode(draw_list, "%s: '%s' %d vtx, %d indices, %d cmds", label, draw_list->_OwnerName ? draw_list->_OwnerName : "", draw_list->VtxBuffer.Size, draw_list->IdxBuffer.Size, cmd_count);
if (draw_list == GetWindowDrawList())
{
SameLine();
TextColored(ImVec4(1.0f, 0.4f, 0.4f, 1.0f), "CURRENTLY APPENDING"); // Can't display stats for active draw list! (we don't have the data double-buffered)
if (node_open)
TreePop();
return;
}
ImDrawList* fg_draw_list = GetForegroundDrawList(window); // Render additional visuals into the top-most draw list
if (window && IsItemHovered() && fg_draw_list)
fg_draw_list->AddRect(window->Pos, window->Pos + window->Size, IM_COL32(255, 255, 0, 255));
if (!node_open)
return;
if (window && !window->WasActive)
TextDisabled("Warning: owning Window is inactive. This DrawList is not being rendered!");
for (const ImDrawCmd* pcmd = draw_list->CmdBuffer.Data; pcmd < draw_list->CmdBuffer.Data + cmd_count; pcmd++)
{
if (pcmd->UserCallback)
{
BulletText("Callback %p, user_data %p", pcmd->UserCallback, pcmd->UserCallbackData);
continue;
}
char buf[300];
ImFormatString(buf, IM_ARRAYSIZE(buf), "DrawCmd:%5d tris, Tex 0x%p, ClipRect (%4.0f,%4.0f)-(%4.0f,%4.0f)",
pcmd->ElemCount / 3, (void*)(intptr_t)pcmd->TextureId,
pcmd->ClipRect.x, pcmd->ClipRect.y, pcmd->ClipRect.z, pcmd->ClipRect.w);
bool pcmd_node_open = TreeNode((void*)(pcmd - draw_list->CmdBuffer.begin()), "%s", buf);
if (IsItemHovered() && (cfg->ShowDrawCmdMesh || cfg->ShowDrawCmdBoundingBoxes) && fg_draw_list)
DebugNodeDrawCmdShowMeshAndBoundingBox(fg_draw_list, draw_list, pcmd, cfg->ShowDrawCmdMesh, cfg->ShowDrawCmdBoundingBoxes);
if (!pcmd_node_open)
continue;
// Calculate approximate coverage area (touched pixel count)
// This will be in pixels squared as long there's no post-scaling happening to the renderer output.
const ImDrawIdx* idx_buffer = (draw_list->IdxBuffer.Size > 0) ? draw_list->IdxBuffer.Data : NULL;
const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data + pcmd->VtxOffset;
float total_area = 0.0f;
for (unsigned int idx_n = pcmd->IdxOffset; idx_n < pcmd->IdxOffset + pcmd->ElemCount; )
{
ImVec2 triangle[3];
for (int n = 0; n < 3; n++, idx_n++)
triangle[n] = vtx_buffer[idx_buffer ? idx_buffer[idx_n] : idx_n].pos;
total_area += ImTriangleArea(triangle[0], triangle[1], triangle[2]);
}
// Display vertex information summary. Hover to get all triangles drawn in wire-frame
ImFormatString(buf, IM_ARRAYSIZE(buf), "Mesh: ElemCount: %d, VtxOffset: +%d, IdxOffset: +%d, Area: ~%0.f px", pcmd->ElemCount, pcmd->VtxOffset, pcmd->IdxOffset, total_area);
Selectable(buf);
if (IsItemHovered() && fg_draw_list)
DebugNodeDrawCmdShowMeshAndBoundingBox(fg_draw_list, draw_list, pcmd, true, false);
// Display individual triangles/vertices. Hover on to get the corresponding triangle highlighted.
ImGuiListClipper clipper;
clipper.Begin(pcmd->ElemCount / 3); // Manually coarse clip our print out of individual vertices to save CPU, only items that may be visible.
while (clipper.Step())
for (int prim = clipper.DisplayStart, idx_i = pcmd->IdxOffset + clipper.DisplayStart * 3; prim < clipper.DisplayEnd; prim++)
{
char* buf_p = buf, * buf_end = buf + IM_ARRAYSIZE(buf);
ImVec2 triangle[3];
for (int n = 0; n < 3; n++, idx_i++)
{
const ImDrawVert& v = vtx_buffer[idx_buffer ? idx_buffer[idx_i] : idx_i];
triangle[n] = v.pos;
buf_p += ImFormatString(buf_p, buf_end - buf_p, "%s %04d: pos (%8.2f,%8.2f), uv (%.6f,%.6f), col %08X\n",
(n == 0) ? "Vert:" : " ", idx_i, v.pos.x, v.pos.y, v.uv.x, v.uv.y, v.col);
}
Selectable(buf, false);
if (fg_draw_list && IsItemHovered())
{
ImDrawListFlags backup_flags = fg_draw_list->Flags;
fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
fg_draw_list->AddPolyline(triangle, 3, IM_COL32(255, 255, 0, 255), ImDrawFlags_Closed, 1.0f);
fg_draw_list->Flags = backup_flags;
}
}
TreePop();
}
TreePop();
}
// [DEBUG] Display mesh/aabb of a ImDrawCmd
void ImGui::DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, const ImDrawList* draw_list, const ImDrawCmd* draw_cmd, bool show_mesh, bool show_aabb)
{
IM_ASSERT(show_mesh || show_aabb);
// Draw wire-frame version of all triangles
ImRect clip_rect = draw_cmd->ClipRect;
ImRect vtxs_rect(FLT_MAX, FLT_MAX, -FLT_MAX, -FLT_MAX);
ImDrawListFlags backup_flags = out_draw_list->Flags;
out_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
for (unsigned int idx_n = draw_cmd->IdxOffset, idx_end = draw_cmd->IdxOffset + draw_cmd->ElemCount; idx_n < idx_end; )
{
ImDrawIdx* idx_buffer = (draw_list->IdxBuffer.Size > 0) ? draw_list->IdxBuffer.Data : NULL; // We don't hold on those pointers past iterations as ->AddPolyline() may invalidate them if out_draw_list==draw_list
ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data + draw_cmd->VtxOffset;
ImVec2 triangle[3];
for (int n = 0; n < 3; n++, idx_n++)
vtxs_rect.Add((triangle[n] = vtx_buffer[idx_buffer ? idx_buffer[idx_n] : idx_n].pos));
if (show_mesh)
out_draw_list->AddPolyline(triangle, 3, IM_COL32(255, 255, 0, 255), ImDrawFlags_Closed, 1.0f); // In yellow: mesh triangles
}
// Draw bounding boxes
if (show_aabb)
{
out_draw_list->AddRect(ImFloor(clip_rect.Min), ImFloor(clip_rect.Max), IM_COL32(255, 0, 255, 255)); // In pink: clipping rectangle submitted to GPU
out_draw_list->AddRect(ImFloor(vtxs_rect.Min), ImFloor(vtxs_rect.Max), IM_COL32(0, 255, 255, 255)); // In cyan: bounding box of triangles
}
out_draw_list->Flags = backup_flags;
}
// [DEBUG] Display details for a single font, called by ShowStyleEditor().
void ImGui::DebugNodeFont(ImFont* font)
{
bool opened = TreeNode(font, "Font: \"%s\"\n%.2f px, %d glyphs, %d file(s)",
font->ConfigData ? font->ConfigData[0].Name : "", font->FontSize, font->Glyphs.Size, font->ConfigDataCount);
SameLine();
if (SmallButton("Set as default"))
GetIO().FontDefault = font;
if (!opened)
return;
// Display preview text
PushFont(font);
Text("The quick brown fox jumps over the lazy dog");
PopFont();
// Display details
SetNextItemWidth(GetFontSize() * 8);
DragFloat("Font scale", &font->Scale, 0.005f, 0.3f, 2.0f, "%.1f");
SameLine(); MetricsHelpMarker(
"Note than the default embedded font is NOT meant to be scaled.\n\n"
"Font are currently rendered into bitmaps at a given size at the time of building the atlas. "
"You may oversample them to get some flexibility with scaling. "
"You can also render at multiple sizes and select which one to use at runtime.\n\n"
"(Glimmer of hope: the atlas system will be rewritten in the future to make scaling more flexible.)");
Text("Ascent: %f, Descent: %f, Height: %f", font->Ascent, font->Descent, font->Ascent - font->Descent);
char c_str[5];
Text("Fallback character: '%s' (U+%04X)", ImTextCharToUtf8(c_str, font->FallbackChar), font->FallbackChar);
Text("Ellipsis character: '%s' (U+%04X)", ImTextCharToUtf8(c_str, font->EllipsisChar), font->EllipsisChar);
const int surface_sqrt = (int)ImSqrt((float)font->MetricsTotalSurface);
Text("Texture Area: about %d px ~%dx%d px", font->MetricsTotalSurface, surface_sqrt, surface_sqrt);
for (int config_i = 0; config_i < font->ConfigDataCount; config_i++)
if (font->ConfigData)
if (const ImFontConfig* cfg = &font->ConfigData[config_i])
BulletText("Input %d: \'%s\', Oversample: (%d,%d), PixelSnapH: %d, Offset: (%.1f,%.1f)",
config_i, cfg->Name, cfg->OversampleH, cfg->OversampleV, cfg->PixelSnapH, cfg->GlyphOffset.x, cfg->GlyphOffset.y);
// Display all glyphs of the fonts in separate pages of 256 characters
if (TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size))
{
ImDrawList* draw_list = GetWindowDrawList();
const ImU32 glyph_col = GetColorU32(ImGuiCol_Text);
const float cell_size = font->FontSize * 1;
const float cell_spacing = GetStyle().ItemSpacing.y;
for (unsigned int base = 0; base <= IM_UNICODE_CODEPOINT_MAX; base += 256)
{
// Skip ahead if a large bunch of glyphs are not present in the font (test in chunks of 4k)
// This is only a small optimization to reduce the number of iterations when IM_UNICODE_MAX_CODEPOINT
// is large // (if ImWchar==ImWchar32 we will do at least about 272 queries here)
if (!(base & 4095) && font->IsGlyphRangeUnused(base, base + 4095))
{
base += 4096 - 256;
continue;
}
int count = 0;
for (unsigned int n = 0; n < 256; n++)
if (font->FindGlyphNoFallback((ImWchar)(base + n)))
count++;
if (count <= 0)
continue;
if (!TreeNode((void*)(intptr_t)base, "U+%04X..U+%04X (%d %s)", base, base + 255, count, count > 1 ? "glyphs" : "glyph"))
continue;
// Draw a 16x16 grid of glyphs
ImVec2 base_pos = GetCursorScreenPos();
for (unsigned int n = 0; n < 256; n++)
{
// We use ImFont::RenderChar as a shortcut because we don't have UTF-8 conversion functions
// available here and thus cannot easily generate a zero-terminated UTF-8 encoded string.
ImVec2 cell_p1(base_pos.x + (n % 16) * (cell_size + cell_spacing), base_pos.y + (n / 16) * (cell_size + cell_spacing));
ImVec2 cell_p2(cell_p1.x + cell_size, cell_p1.y + cell_size);
const ImFontGlyph* glyph = font->FindGlyphNoFallback((ImWchar)(base + n));
draw_list->AddRect(cell_p1, cell_p2, glyph ? IM_COL32(255, 255, 255, 100) : IM_COL32(255, 255, 255, 50));
if (!glyph)
continue;
font->RenderChar(draw_list, cell_size, cell_p1, glyph_col, (ImWchar)(base + n));
if (IsMouseHoveringRect(cell_p1, cell_p2) && BeginTooltip())
{
DebugNodeFontGlyph(font, glyph);
EndTooltip();
}
}
Dummy(ImVec2((cell_size + cell_spacing) * 16, (cell_size + cell_spacing) * 16));
TreePop();
}
TreePop();
}
TreePop();
}
void ImGui::DebugNodeFontGlyph(ImFont*, const ImFontGlyph* glyph)
{
Text("Codepoint: U+%04X", glyph->Codepoint);
Separator();
Text("Visible: %d", glyph->Visible);
Text("AdvanceX: %.1f", glyph->AdvanceX);
Text("Pos: (%.2f,%.2f)->(%.2f,%.2f)", glyph->X0, glyph->Y0, glyph->X1, glyph->Y1);
Text("UV: (%.3f,%.3f)->(%.3f,%.3f)", glyph->U0, glyph->V0, glyph->U1, glyph->V1);
}
// [DEBUG] Display contents of ImGuiStorage
void ImGui::DebugNodeStorage(ImGuiStorage* storage, const char* label)
{
if (!TreeNode(label, "%s: %d entries, %d bytes", label, storage->Data.Size, storage->Data.size_in_bytes()))
return;
for (int n = 0; n < storage->Data.Size; n++)
{
const ImGuiStorage::ImGuiStoragePair& p = storage->Data[n];
BulletText("Key 0x%08X Value { i: %d }", p.key, p.val_i); // Important: we currently don't store a type, real value may not be integer.
}
TreePop();
}
// [DEBUG] Display contents of ImGuiTabBar
void ImGui::DebugNodeTabBar(ImGuiTabBar* tab_bar, const char* label)
{
// Standalone tab bars (not associated to docking/windows functionality) currently hold no discernible strings.
char buf[256];
char* p = buf;
const char* buf_end = buf + IM_ARRAYSIZE(buf);
const bool is_active = (tab_bar->PrevFrameVisible >= GetFrameCount() - 2);
p += ImFormatString(p, buf_end - p, "%s 0x%08X (%d tabs)%s", label, tab_bar->ID, tab_bar->Tabs.Size, is_active ? "" : " *Inactive*");
p += ImFormatString(p, buf_end - p, " { ");
for (int tab_n = 0; tab_n < ImMin(tab_bar->Tabs.Size, 3); tab_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
p += ImFormatString(p, buf_end - p, "%s'%s'",
tab_n > 0 ? ", " : "", TabBarGetTabName(tab_bar, tab));
}
p += ImFormatString(p, buf_end - p, (tab_bar->Tabs.Size > 3) ? " ... }" : " } ");
if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
bool open = TreeNode(label, "%s", buf);
if (!is_active) { PopStyleColor(); }
if (is_active && IsItemHovered())
{
ImDrawList* draw_list = GetForegroundDrawList();
draw_list->AddRect(tab_bar->BarRect.Min, tab_bar->BarRect.Max, IM_COL32(255, 255, 0, 255));
draw_list->AddLine(ImVec2(tab_bar->ScrollingRectMinX, tab_bar->BarRect.Min.y), ImVec2(tab_bar->ScrollingRectMinX, tab_bar->BarRect.Max.y), IM_COL32(0, 255, 0, 255));
draw_list->AddLine(ImVec2(tab_bar->ScrollingRectMaxX, tab_bar->BarRect.Min.y), ImVec2(tab_bar->ScrollingRectMaxX, tab_bar->BarRect.Max.y), IM_COL32(0, 255, 0, 255));
}
if (open)
{
for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
PushID(tab);
if (SmallButton("<")) { TabBarQueueReorder(tab_bar, tab, -1); } SameLine(0, 2);
if (SmallButton(">")) { TabBarQueueReorder(tab_bar, tab, +1); } SameLine();
Text("%02d%c Tab 0x%08X '%s' Offset: %.2f, Width: %.2f/%.2f",
tab_n, (tab->ID == tab_bar->SelectedTabId) ? '*' : ' ', tab->ID, TabBarGetTabName(tab_bar, tab), tab->Offset, tab->Width, tab->ContentWidth);
PopID();
}
TreePop();
}
}
void ImGui::DebugNodeViewport(ImGuiViewportP* viewport)
{
SetNextItemOpen(true, ImGuiCond_Once);
if (TreeNode("viewport0", "Viewport #%d", 0))
{
ImGuiWindowFlags flags = viewport->Flags;
BulletText("Main Pos: (%.0f,%.0f), Size: (%.0f,%.0f)\nWorkArea Offset Left: %.0f Top: %.0f, Right: %.0f, Bottom: %.0f",
viewport->Pos.x, viewport->Pos.y, viewport->Size.x, viewport->Size.y,
viewport->WorkOffsetMin.x, viewport->WorkOffsetMin.y, viewport->WorkOffsetMax.x, viewport->WorkOffsetMax.y);
BulletText("Flags: 0x%04X =%s%s%s", viewport->Flags,
(flags & ImGuiViewportFlags_IsPlatformWindow) ? " IsPlatformWindow" : "",
(flags & ImGuiViewportFlags_IsPlatformMonitor) ? " IsPlatformMonitor" : "",
(flags & ImGuiViewportFlags_OwnedByApp) ? " OwnedByApp" : "");
for (int layer_i = 0; layer_i < IM_ARRAYSIZE(viewport->DrawDataBuilder.Layers); layer_i++)
for (int draw_list_i = 0; draw_list_i < viewport->DrawDataBuilder.Layers[layer_i].Size; draw_list_i++)
DebugNodeDrawList(NULL, viewport->DrawDataBuilder.Layers[layer_i][draw_list_i], "DrawList");
TreePop();
}
}
void ImGui::DebugNodeWindow(ImGuiWindow* window, const char* label)
{
if (window == NULL)
{
BulletText("%s: NULL", label);
return;
}
ImGuiContext& g = *GImGui;
const bool is_active = window->WasActive;
ImGuiTreeNodeFlags tree_node_flags = (window == g.NavWindow) ? ImGuiTreeNodeFlags_Selected : ImGuiTreeNodeFlags_None;
if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
const bool open = TreeNodeEx(label, tree_node_flags, "%s '%s'%s", label, window->Name, is_active ? "" : " *Inactive*");
if (!is_active) { PopStyleColor(); }
if (IsItemHovered() && is_active)
GetForegroundDrawList(window)->AddRect(window->Pos, window->Pos + window->Size, IM_COL32(255, 255, 0, 255));
if (!open)
return;
if (window->MemoryCompacted)
TextDisabled("Note: some memory buffers have been compacted/freed.");
ImGuiWindowFlags flags = window->Flags;
DebugNodeDrawList(window, window->DrawList, "DrawList");
BulletText("Pos: (%.1f,%.1f), Size: (%.1f,%.1f), ContentSize (%.1f,%.1f) Ideal (%.1f,%.1f)", window->Pos.x, window->Pos.y, window->Size.x, window->Size.y, window->ContentSize.x, window->ContentSize.y, window->ContentSizeIdeal.x, window->ContentSizeIdeal.y);
BulletText("Flags: 0x%08X (%s%s%s%s%s%s%s%s%s..)", flags,
(flags & ImGuiWindowFlags_ChildWindow) ? "Child " : "", (flags & ImGuiWindowFlags_Tooltip) ? "Tooltip " : "", (flags & ImGuiWindowFlags_Popup) ? "Popup " : "",
(flags & ImGuiWindowFlags_Modal) ? "Modal " : "", (flags & ImGuiWindowFlags_ChildMenu) ? "ChildMenu " : "", (flags & ImGuiWindowFlags_NoSavedSettings) ? "NoSavedSettings " : "",
(flags & ImGuiWindowFlags_NoMouseInputs)? "NoMouseInputs":"", (flags & ImGuiWindowFlags_NoNavInputs) ? "NoNavInputs" : "", (flags & ImGuiWindowFlags_AlwaysAutoResize) ? "AlwaysAutoResize" : "");
BulletText("Scroll: (%.2f/%.2f,%.2f/%.2f) Scrollbar:%s%s", window->Scroll.x, window->ScrollMax.x, window->Scroll.y, window->ScrollMax.y, window->ScrollbarX ? "X" : "", window->ScrollbarY ? "Y" : "");
BulletText("Active: %d/%d, WriteAccessed: %d, BeginOrderWithinContext: %d", window->Active, window->WasActive, window->WriteAccessed, (window->Active || window->WasActive) ? window->BeginOrderWithinContext : -1);
BulletText("Appearing: %d, Hidden: %d (CanSkip %d Cannot %d), SkipItems: %d", window->Appearing, window->Hidden, window->HiddenFramesCanSkipItems, window->HiddenFramesCannotSkipItems, window->SkipItems);
for (int layer = 0; layer < ImGuiNavLayer_COUNT; layer++)
{
ImRect r = window->NavRectRel[layer];
if (r.Min.x >= r.Max.y && r.Min.y >= r.Max.y)
BulletText("NavLastIds[%d]: 0x%08X", layer, window->NavLastIds[layer]);
else
BulletText("NavLastIds[%d]: 0x%08X at +(%.1f,%.1f)(%.1f,%.1f)", layer, window->NavLastIds[layer], r.Min.x, r.Min.y, r.Max.x, r.Max.y);
DebugLocateItemOnHover(window->NavLastIds[layer]);
}
BulletText("NavLayersActiveMask: %X, NavLastChildNavWindow: %s", window->DC.NavLayersActiveMask, window->NavLastChildNavWindow ? window->NavLastChildNavWindow->Name : "NULL");
if (window->RootWindow != window) { DebugNodeWindow(window->RootWindow, "RootWindow"); }
if (window->ParentWindow != NULL) { DebugNodeWindow(window->ParentWindow, "ParentWindow"); }
if (window->DC.ChildWindows.Size > 0) { DebugNodeWindowsList(&window->DC.ChildWindows, "ChildWindows"); }
if (window->ColumnsStorage.Size > 0 && TreeNode("Columns", "Columns sets (%d)", window->ColumnsStorage.Size))
{
for (int n = 0; n < window->ColumnsStorage.Size; n++)
DebugNodeColumns(&window->ColumnsStorage[n]);
TreePop();
}
DebugNodeStorage(&window->StateStorage, "Storage");
TreePop();
}
void ImGui::DebugNodeWindowSettings(ImGuiWindowSettings* settings)
{
if (settings->WantDelete)
BeginDisabled();
Text("0x%08X \"%s\" Pos (%d,%d) Size (%d,%d) Collapsed=%d",
settings->ID, settings->GetName(), settings->Pos.x, settings->Pos.y, settings->Size.x, settings->Size.y, settings->Collapsed);
if (settings->WantDelete)
EndDisabled();
}
void ImGui::DebugNodeWindowsList(ImVector<ImGuiWindow*>* windows, const char* label)
{
if (!TreeNode(label, "%s (%d)", label, windows->Size))
return;
for (int i = windows->Size - 1; i >= 0; i--) // Iterate front to back
{
PushID((*windows)[i]);
DebugNodeWindow((*windows)[i], "Window");
PopID();
}
TreePop();
}
// FIXME-OPT: This is technically suboptimal, but it is simpler this way.
void ImGui::DebugNodeWindowsListByBeginStackParent(ImGuiWindow** windows, int windows_size, ImGuiWindow* parent_in_begin_stack)
{
for (int i = 0; i < windows_size; i++)
{
ImGuiWindow* window = windows[i];
if (window->ParentWindowInBeginStack != parent_in_begin_stack)
continue;
char buf[20];
ImFormatString(buf, IM_ARRAYSIZE(buf), "[%04d] Window", window->BeginOrderWithinContext);
//BulletText("[%04d] Window '%s'", window->BeginOrderWithinContext, window->Name);
DebugNodeWindow(window, buf);
Indent();
DebugNodeWindowsListByBeginStackParent(windows + i + 1, windows_size - i - 1, window);
Unindent();
}
}
//-----------------------------------------------------------------------------
// [SECTION] DEBUG LOG WINDOW
//-----------------------------------------------------------------------------
void ImGui::DebugLog(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
DebugLogV(fmt, args);
va_end(args);
}
void ImGui::DebugLogV(const char* fmt, va_list args)
{
ImGuiContext& g = *GImGui;
const int old_size = g.DebugLogBuf.size();
g.DebugLogBuf.appendf("[%05d] ", g.FrameCount);
g.DebugLogBuf.appendfv(fmt, args);
if (g.DebugLogFlags & ImGuiDebugLogFlags_OutputToTTY)
IMGUI_DEBUG_PRINTF("%s", g.DebugLogBuf.begin() + old_size);
g.DebugLogIndex.append(g.DebugLogBuf.c_str(), old_size, g.DebugLogBuf.size());
}
void ImGui::ShowDebugLogWindow(bool* p_open)
{
ImGuiContext& g = *GImGui;
if (!(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize))
SetNextWindowSize(ImVec2(0.0f, GetFontSize() * 12.0f), ImGuiCond_FirstUseEver);
if (!Begin("Dear ImGui Debug Log", p_open) || GetCurrentWindow()->BeginCount > 1)
{
End();
return;
}
AlignTextToFramePadding();
Text("Log events:");
SameLine(); CheckboxFlags("All", &g.DebugLogFlags, ImGuiDebugLogFlags_EventMask_);
SameLine(); CheckboxFlags("ActiveId", &g.DebugLogFlags, ImGuiDebugLogFlags_EventActiveId);
SameLine(); CheckboxFlags("Focus", &g.DebugLogFlags, ImGuiDebugLogFlags_EventFocus);
SameLine(); CheckboxFlags("Popup", &g.DebugLogFlags, ImGuiDebugLogFlags_EventPopup);
SameLine(); CheckboxFlags("Nav", &g.DebugLogFlags, ImGuiDebugLogFlags_EventNav);
SameLine(); if (CheckboxFlags("Clipper", &g.DebugLogFlags, ImGuiDebugLogFlags_EventClipper)) { g.DebugLogClipperAutoDisableFrames = 2; } if (IsItemHovered()) SetTooltip("Clipper log auto-disabled after 2 frames");
SameLine(); CheckboxFlags("IO", &g.DebugLogFlags, ImGuiDebugLogFlags_EventIO);
if (SmallButton("Clear"))
{
g.DebugLogBuf.clear();
g.DebugLogIndex.clear();
}
SameLine();
if (SmallButton("Copy"))
SetClipboardText(g.DebugLogBuf.c_str());
BeginChild("##log", ImVec2(0.0f, 0.0f), true, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar);
ImGuiListClipper clipper;
clipper.Begin(g.DebugLogIndex.size());
while (clipper.Step())
for (int line_no = clipper.DisplayStart; line_no < clipper.DisplayEnd; line_no++)
{
const char* line_begin = g.DebugLogIndex.get_line_begin(g.DebugLogBuf.c_str(), line_no);
const char* line_end = g.DebugLogIndex.get_line_end(g.DebugLogBuf.c_str(), line_no);
TextUnformatted(line_begin, line_end);
ImRect text_rect = g.LastItemData.Rect;
if (IsItemHovered())
for (const char* p = line_begin; p < line_end - 10; p++)
{
ImGuiID id = 0;
if (p[0] != '0' || (p[1] != 'x' && p[1] != 'X') || sscanf(p + 2, "%X", &id) != 1)
continue;
ImVec2 p0 = CalcTextSize(line_begin, p);
ImVec2 p1 = CalcTextSize(p, p + 10);
g.LastItemData.Rect = ImRect(text_rect.Min + ImVec2(p0.x, 0.0f), text_rect.Min + ImVec2(p0.x + p1.x, p1.y));
if (IsMouseHoveringRect(g.LastItemData.Rect.Min, g.LastItemData.Rect.Max, true))
DebugLocateItemOnHover(id);
p += 10;
}
}
if (GetScrollY() >= GetScrollMaxY())
SetScrollHereY(1.0f);
EndChild();
End();
}
//-----------------------------------------------------------------------------
// [SECTION] OTHER DEBUG TOOLS (ITEM PICKER, STACK TOOL)
//-----------------------------------------------------------------------------
static const ImU32 DEBUG_LOCATE_ITEM_COLOR = IM_COL32(0, 255, 0, 255); // Green
void ImGui::DebugLocateItem(ImGuiID target_id)
{
ImGuiContext& g = *GImGui;
g.DebugLocateId = target_id;
g.DebugLocateFrames = 2;
}
void ImGui::DebugLocateItemOnHover(ImGuiID target_id)
{
if (target_id == 0 || !IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenBlockedByPopup))
return;
ImGuiContext& g = *GImGui;
DebugLocateItem(target_id);
GetForegroundDrawList(g.CurrentWindow)->AddRect(g.LastItemData.Rect.Min - ImVec2(3.0f, 3.0f), g.LastItemData.Rect.Max + ImVec2(3.0f, 3.0f), DEBUG_LOCATE_ITEM_COLOR);
}
void ImGui::DebugLocateItemResolveWithLastItem()
{
ImGuiContext& g = *GImGui;
ImGuiLastItemData item_data = g.LastItemData;
g.DebugLocateId = 0;
ImDrawList* draw_list = GetForegroundDrawList(g.CurrentWindow);
ImRect r = item_data.Rect;
r.Expand(3.0f);
ImVec2 p1 = g.IO.MousePos;
ImVec2 p2 = ImVec2((p1.x < r.Min.x) ? r.Min.x : (p1.x > r.Max.x) ? r.Max.x : p1.x, (p1.y < r.Min.y) ? r.Min.y : (p1.y > r.Max.y) ? r.Max.y : p1.y);
draw_list->AddRect(r.Min, r.Max, DEBUG_LOCATE_ITEM_COLOR);
draw_list->AddLine(p1, p2, DEBUG_LOCATE_ITEM_COLOR);
}
// [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
void ImGui::UpdateDebugToolItemPicker()
{
ImGuiContext& g = *GImGui;
g.DebugItemPickerBreakId = 0;
if (!g.DebugItemPickerActive)
return;
const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
SetMouseCursor(ImGuiMouseCursor_Hand);
if (IsKeyPressed(ImGuiKey_Escape))
g.DebugItemPickerActive = false;
const bool change_mapping = g.IO.KeyMods == (ImGuiMod_Ctrl | ImGuiMod_Shift);
if (!change_mapping && IsMouseClicked(g.DebugItemPickerMouseButton) && hovered_id)
{
g.DebugItemPickerBreakId = hovered_id;
g.DebugItemPickerActive = false;
}
for (int mouse_button = 0; mouse_button < 3; mouse_button++)
if (change_mapping && IsMouseClicked(mouse_button))
g.DebugItemPickerMouseButton = (ImU8)mouse_button;
SetNextWindowBgAlpha(0.70f);
if (!BeginTooltip())
return;
Text("HoveredId: 0x%08X", hovered_id);
Text("Press ESC to abort picking.");
const char* mouse_button_names[] = { "Left", "Right", "Middle" };
if (change_mapping)
Text("Remap w/ Ctrl+Shift: click anywhere to select new mouse button.");
else
TextColored(GetStyleColorVec4(hovered_id ? ImGuiCol_Text : ImGuiCol_TextDisabled), "Click %s Button to break in debugger! (remap w/ Ctrl+Shift)", mouse_button_names[g.DebugItemPickerMouseButton]);
EndTooltip();
}
// [DEBUG] Stack Tool: update queries. Called by NewFrame()
void ImGui::UpdateDebugToolStackQueries()
{
ImGuiContext& g = *GImGui;
ImGuiStackTool* tool = &g.DebugStackTool;
// Clear hook when stack tool is not visible
g.DebugHookIdInfo = 0;
if (g.FrameCount != tool->LastActiveFrame + 1)
return;
// Update queries. The steps are: -1: query Stack, >= 0: query each stack item
// We can only perform 1 ID Info query every frame. This is designed so the GetID() tests are cheap and constant-time
const ImGuiID query_id = g.HoveredIdPreviousFrame ? g.HoveredIdPreviousFrame : g.ActiveId;
if (tool->QueryId != query_id)
{
tool->QueryId = query_id;
tool->StackLevel = -1;
tool->Results.resize(0);
}
if (query_id == 0)
return;
// Advance to next stack level when we got our result, or after 2 frames (in case we never get a result)
int stack_level = tool->StackLevel;
if (stack_level >= 0 && stack_level < tool->Results.Size)
if (tool->Results[stack_level].QuerySuccess || tool->Results[stack_level].QueryFrameCount > 2)
tool->StackLevel++;
// Update hook
stack_level = tool->StackLevel;
if (stack_level == -1)
g.DebugHookIdInfo = query_id;
if (stack_level >= 0 && stack_level < tool->Results.Size)
{
g.DebugHookIdInfo = tool->Results[stack_level].ID;
tool->Results[stack_level].QueryFrameCount++;
}
}
// [DEBUG] Stack tool: hooks called by GetID() family functions
void ImGui::DebugHookIdInfo(ImGuiID id, ImGuiDataType data_type, const void* data_id, const void* data_id_end)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiStackTool* tool = &g.DebugStackTool;
// Step 0: stack query
// This assumes that the ID was computed with the current ID stack, which tends to be the case for our widget.
if (tool->StackLevel == -1)
{
tool->StackLevel++;
tool->Results.resize(window->IDStack.Size + 1, ImGuiStackLevelInfo());
for (int n = 0; n < window->IDStack.Size + 1; n++)
tool->Results[n].ID = (n < window->IDStack.Size) ? window->IDStack[n] : id;
return;
}
// Step 1+: query for individual level
IM_ASSERT(tool->StackLevel >= 0);
if (tool->StackLevel != window->IDStack.Size)
return;
ImGuiStackLevelInfo* info = &tool->Results[tool->StackLevel];
IM_ASSERT(info->ID == id && info->QueryFrameCount > 0);
switch (data_type)
{
case ImGuiDataType_S32:
ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "%d", (int)(intptr_t)data_id);
break;
case ImGuiDataType_String:
ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "%.*s", data_id_end ? (int)((const char*)data_id_end - (const char*)data_id) : (int)strlen((const char*)data_id), (const char*)data_id);
break;
case ImGuiDataType_Pointer:
ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "(void*)0x%p", data_id);
break;
case ImGuiDataType_ID:
if (info->Desc[0] != 0) // PushOverrideID() is often used to avoid hashing twice, which would lead to 2 calls to DebugHookIdInfo(). We prioritize the first one.
return;
ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "0x%08X [override]", id);
break;
default:
IM_ASSERT(0);
}
info->QuerySuccess = true;
info->DataType = data_type;
}
static int StackToolFormatLevelInfo(ImGuiStackTool* tool, int n, bool format_for_ui, char* buf, size_t buf_size)
{
ImGuiStackLevelInfo* info = &tool->Results[n];
ImGuiWindow* window = (info->Desc[0] == 0 && n == 0) ? ImGui::FindWindowByID(info->ID) : NULL;
if (window) // Source: window name (because the root ID don't call GetID() and so doesn't get hooked)
return ImFormatString(buf, buf_size, format_for_ui ? "\"%s\" [window]" : "%s", window->Name);
if (info->QuerySuccess) // Source: GetID() hooks (prioritize over ItemInfo() because we frequently use patterns like: PushID(str), Button("") where they both have same id)
return ImFormatString(buf, buf_size, (format_for_ui && info->DataType == ImGuiDataType_String) ? "\"%s\"" : "%s", info->Desc);
if (tool->StackLevel < tool->Results.Size) // Only start using fallback below when all queries are done, so during queries we don't flickering ??? markers.
return (*buf = 0);
#ifdef IMGUI_ENABLE_TEST_ENGINE
if (const char* label = ImGuiTestEngine_FindItemDebugLabel(GImGui, info->ID)) // Source: ImGuiTestEngine's ItemInfo()
return ImFormatString(buf, buf_size, format_for_ui ? "??? \"%s\"" : "%s", label);
#endif
return ImFormatString(buf, buf_size, "???");
}
// Stack Tool: Display UI
void ImGui::ShowStackToolWindow(bool* p_open)
{
ImGuiContext& g = *GImGui;
if (!(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize))
SetNextWindowSize(ImVec2(0.0f, GetFontSize() * 8.0f), ImGuiCond_FirstUseEver);
if (!Begin("Dear ImGui Stack Tool", p_open) || GetCurrentWindow()->BeginCount > 1)
{
End();
return;
}
// Display hovered/active status
ImGuiStackTool* tool = &g.DebugStackTool;
const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
const ImGuiID active_id = g.ActiveId;
#ifdef IMGUI_ENABLE_TEST_ENGINE
Text("HoveredId: 0x%08X (\"%s\"), ActiveId: 0x%08X (\"%s\")", hovered_id, hovered_id ? ImGuiTestEngine_FindItemDebugLabel(&g, hovered_id) : "", active_id, active_id ? ImGuiTestEngine_FindItemDebugLabel(&g, active_id) : "");
#else
Text("HoveredId: 0x%08X, ActiveId: 0x%08X", hovered_id, active_id);
#endif
SameLine();
MetricsHelpMarker("Hover an item with the mouse to display elements of the ID Stack leading to the item's final ID.\nEach level of the stack correspond to a PushID() call.\nAll levels of the stack are hashed together to make the final ID of a widget (ID displayed at the bottom level of the stack).\nRead FAQ entry about the ID stack for details.");
// CTRL+C to copy path
const float time_since_copy = (float)g.Time - tool->CopyToClipboardLastTime;
Checkbox("Ctrl+C: copy path to clipboard", &tool->CopyToClipboardOnCtrlC);
SameLine();
TextColored((time_since_copy >= 0.0f && time_since_copy < 0.75f && ImFmod(time_since_copy, 0.25f) < 0.25f * 0.5f) ? ImVec4(1.f, 1.f, 0.3f, 1.f) : ImVec4(), "*COPIED*");
if (tool->CopyToClipboardOnCtrlC && IsKeyDown(ImGuiMod_Ctrl) && IsKeyPressed(ImGuiKey_C))
{
tool->CopyToClipboardLastTime = (float)g.Time;
char* p = g.TempBuffer.Data;
char* p_end = p + g.TempBuffer.Size;
for (int stack_n = 0; stack_n < tool->Results.Size && p + 3 < p_end; stack_n++)
{
*p++ = '/';
char level_desc[256];
StackToolFormatLevelInfo(tool, stack_n, false, level_desc, IM_ARRAYSIZE(level_desc));
for (int n = 0; level_desc[n] && p + 2 < p_end; n++)
{
if (level_desc[n] == '/')
*p++ = '\\';
*p++ = level_desc[n];
}
}
*p = '\0';
SetClipboardText(g.TempBuffer.Data);
}
// Display decorated stack
tool->LastActiveFrame = g.FrameCount;
if (tool->Results.Size > 0 && BeginTable("##table", 3, ImGuiTableFlags_Borders))
{
const float id_width = CalcTextSize("0xDDDDDDDD").x;
TableSetupColumn("Seed", ImGuiTableColumnFlags_WidthFixed, id_width);
TableSetupColumn("PushID", ImGuiTableColumnFlags_WidthStretch);
TableSetupColumn("Result", ImGuiTableColumnFlags_WidthFixed, id_width);
TableHeadersRow();
for (int n = 0; n < tool->Results.Size; n++)
{
ImGuiStackLevelInfo* info = &tool->Results[n];
TableNextColumn();
Text("0x%08X", (n > 0) ? tool->Results[n - 1].ID : 0);
TableNextColumn();
StackToolFormatLevelInfo(tool, n, true, g.TempBuffer.Data, g.TempBuffer.Size);
TextUnformatted(g.TempBuffer.Data);
TableNextColumn();
Text("0x%08X", info->ID);
if (n == tool->Results.Size - 1)
TableSetBgColor(ImGuiTableBgTarget_CellBg, GetColorU32(ImGuiCol_Header));
}
EndTable();
}
End();
}
#else
void ImGui::ShowMetricsWindow(bool*) {}
void ImGui::ShowFontAtlas(ImFontAtlas*) {}
void ImGui::DebugNodeColumns(ImGuiOldColumns*) {}
void ImGui::DebugNodeDrawList(ImGuiWindow*, const ImDrawList*, const char*) {}
void ImGui::DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList*, const ImDrawList*, const ImDrawCmd*, bool, bool) {}
void ImGui::DebugNodeFont(ImFont*) {}
void ImGui::DebugNodeStorage(ImGuiStorage*, const char*) {}
void ImGui::DebugNodeTabBar(ImGuiTabBar*, const char*) {}
void ImGui::DebugNodeWindow(ImGuiWindow*, const char*) {}
void ImGui::DebugNodeWindowSettings(ImGuiWindowSettings*) {}
void ImGui::DebugNodeWindowsList(ImVector<ImGuiWindow*>*, const char*) {}
void ImGui::DebugNodeViewport(ImGuiViewportP*) {}
void ImGui::DebugLog(const char*, ...) {}
void ImGui::DebugLogV(const char*, va_list) {}
void ImGui::ShowDebugLogWindow(bool*) {}
void ImGui::ShowStackToolWindow(bool*) {}
void ImGui::DebugHookIdInfo(ImGuiID, ImGuiDataType, const void*, const void*) {}
void ImGui::UpdateDebugToolItemPicker() {}
void ImGui::UpdateDebugToolStackQueries() {}
#endif // #ifndef IMGUI_DISABLE_DEBUG_TOOLS
//-----------------------------------------------------------------------------
// Include imgui_user.inl at the end of imgui.cpp to access private data/functions that aren't exposed.
// Prefer just including imgui_internal.h from your code rather than using this define. If a declaration is missing from imgui_internal.h add it or request it on the github.
#ifdef IMGUI_INCLUDE_IMGUI_USER_INL
#include "imgui_user.inl"
#endif
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui_draw.cpp | // dear imgui, v1.89.4
// (drawing and font code)
/*
Index of this file:
// [SECTION] STB libraries implementation
// [SECTION] Style functions
// [SECTION] ImDrawList
// [SECTION] ImDrawListSplitter
// [SECTION] ImDrawData
// [SECTION] Helpers ShadeVertsXXX functions
// [SECTION] ImFontConfig
// [SECTION] ImFontAtlas
// [SECTION] ImFontAtlas glyph ranges helpers
// [SECTION] ImFontGlyphRangesBuilder
// [SECTION] ImFont
// [SECTION] ImGui Internal Render Helpers
// [SECTION] Decompression code
// [SECTION] Default font data (ProggyClean.ttf)
*/
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_internal.h"
#ifdef IMGUI_ENABLE_FREETYPE
#include "misc/freetype/imgui_freetype.h"
#endif
#include <stdio.h> // vsnprintf, sscanf, printf
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
#pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
#pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
#pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif
//-------------------------------------------------------------------------
// [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack)
//-------------------------------------------------------------------------
// Compile time options:
//#define IMGUI_STB_NAMESPACE ImStb
//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
#ifdef IMGUI_STB_NAMESPACE
namespace IMGUI_STB_NAMESPACE
{
#endif
#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
#pragma warning (disable: 6011) // (stb_rectpack) Dereferencing NULL pointer 'cur->next'.
#pragma warning (disable: 6385) // (stb_truetype) Reading invalid data from 'buffer': the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read.
#pragma warning (disable: 28182) // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did.
#endif
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
#pragma clang diagnostic ignored "-Wmissing-prototypes"
#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
#pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
#pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
#endif
#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
#define STBRP_STATIC
#define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
#define STBRP_SORT ImQsort
#define STB_RECT_PACK_IMPLEMENTATION
#endif
#ifdef IMGUI_STB_RECT_PACK_FILENAME
#include IMGUI_STB_RECT_PACK_FILENAME
#else
#include "imstb_rectpack.h"
#endif
#endif
#ifdef IMGUI_ENABLE_STB_TRUETYPE
#ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
#define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
#define STBTT_free(x,u) ((void)(u), IM_FREE(x))
#define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
#define STBTT_fmod(x,y) ImFmod(x,y)
#define STBTT_sqrt(x) ImSqrt(x)
#define STBTT_pow(x,y) ImPow(x,y)
#define STBTT_fabs(x) ImFabs(x)
#define STBTT_ifloor(x) ((int)ImFloorSigned(x))
#define STBTT_iceil(x) ((int)ImCeil(x))
#define STBTT_STATIC
#define STB_TRUETYPE_IMPLEMENTATION
#else
#define STBTT_DEF extern
#endif
#ifdef IMGUI_STB_TRUETYPE_FILENAME
#include IMGUI_STB_TRUETYPE_FILENAME
#else
#include "imstb_truetype.h"
#endif
#endif
#endif // IMGUI_ENABLE_STB_TRUETYPE
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#if defined(_MSC_VER)
#pragma warning (pop)
#endif
#ifdef IMGUI_STB_NAMESPACE
} // namespace ImStb
using namespace IMGUI_STB_NAMESPACE;
#endif
//-----------------------------------------------------------------------------
// [SECTION] Style functions
//-----------------------------------------------------------------------------
void ImGui::StyleColorsDark(ImGuiStyle* dst)
{
ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
ImVec4* colors = style->Colors;
colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here
colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here
colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
}
void ImGui::StyleColorsClassic(ImGuiStyle* dst)
{
ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
ImVec4* colors = style->Colors;
colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here
colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here
colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
}
// Those light colors are better suited with a thicker font than the default one + FrameBorder
void ImGui::StyleColorsLight(ImGuiStyle* dst)
{
ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
ImVec4* colors = style->Colors;
colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here
colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here
colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
}
//-----------------------------------------------------------------------------
// [SECTION] ImDrawList
//-----------------------------------------------------------------------------
ImDrawListSharedData::ImDrawListSharedData()
{
memset(this, 0, sizeof(*this));
for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
{
const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
}
ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
}
void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
{
if (CircleSegmentMaxError == max_error)
return;
IM_ASSERT(max_error > 0.0f);
CircleSegmentMaxError = max_error;
for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
{
const float radius = (float)i;
CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX);
}
ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
}
// Initialize before use in a new frame. We always have a command ready in the buffer.
void ImDrawList::_ResetForNewFrame()
{
// Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
if (_Splitter._Count > 1)
_Splitter.Merge(this);
CmdBuffer.resize(0);
IdxBuffer.resize(0);
VtxBuffer.resize(0);
Flags = _Data->InitialFlags;
memset(&_CmdHeader, 0, sizeof(_CmdHeader));
_VtxCurrentIdx = 0;
_VtxWritePtr = NULL;
_IdxWritePtr = NULL;
_ClipRectStack.resize(0);
_TextureIdStack.resize(0);
_Path.resize(0);
_Splitter.Clear();
CmdBuffer.push_back(ImDrawCmd());
_FringeScale = 1.0f;
}
void ImDrawList::_ClearFreeMemory()
{
CmdBuffer.clear();
IdxBuffer.clear();
VtxBuffer.clear();
Flags = ImDrawListFlags_None;
_VtxCurrentIdx = 0;
_VtxWritePtr = NULL;
_IdxWritePtr = NULL;
_ClipRectStack.clear();
_TextureIdStack.clear();
_Path.clear();
_Splitter.ClearFreeMemory();
}
ImDrawList* ImDrawList::CloneOutput() const
{
ImDrawList* dst = IM_NEW(ImDrawList(_Data));
dst->CmdBuffer = CmdBuffer;
dst->IdxBuffer = IdxBuffer;
dst->VtxBuffer = VtxBuffer;
dst->Flags = Flags;
return dst;
}
void ImDrawList::AddDrawCmd()
{
ImDrawCmd draw_cmd;
draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
draw_cmd.TextureId = _CmdHeader.TextureId;
draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
draw_cmd.IdxOffset = IdxBuffer.Size;
IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
CmdBuffer.push_back(draw_cmd);
}
// Pop trailing draw command (used before merging or presenting to user)
// Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
void ImDrawList::_PopUnusedDrawCmd()
{
while (CmdBuffer.Size > 0)
{
ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
if (curr_cmd->ElemCount != 0 || curr_cmd->UserCallback != NULL)
return;// break;
CmdBuffer.pop_back();
}
}
void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
{
IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
IM_ASSERT(curr_cmd->UserCallback == NULL);
if (curr_cmd->ElemCount != 0)
{
AddDrawCmd();
curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
}
curr_cmd->UserCallback = callback;
curr_cmd->UserCallbackData = callback_data;
AddDrawCmd(); // Force a new command after us (see comment below)
}
// Compare ClipRect, TextureId and VtxOffset with a single memcmp()
#define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
#define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
#define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
#define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1) (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset)
// Try to merge two last draw commands
void ImDrawList::_TryMergeDrawCmds()
{
IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
ImDrawCmd* prev_cmd = curr_cmd - 1;
if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
{
prev_cmd->ElemCount += curr_cmd->ElemCount;
CmdBuffer.pop_back();
}
}
// Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
// The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
void ImDrawList::_OnChangedClipRect()
{
// If current command is used with different settings we need to add a new command
IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
{
AddDrawCmd();
return;
}
IM_ASSERT(curr_cmd->UserCallback == NULL);
// Try to merge with previous command if it matches, else use current command
ImDrawCmd* prev_cmd = curr_cmd - 1;
if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
{
CmdBuffer.pop_back();
return;
}
curr_cmd->ClipRect = _CmdHeader.ClipRect;
}
void ImDrawList::_OnChangedTextureID()
{
// If current command is used with different settings we need to add a new command
IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
{
AddDrawCmd();
return;
}
IM_ASSERT(curr_cmd->UserCallback == NULL);
// Try to merge with previous command if it matches, else use current command
ImDrawCmd* prev_cmd = curr_cmd - 1;
if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
{
CmdBuffer.pop_back();
return;
}
curr_cmd->TextureId = _CmdHeader.TextureId;
}
void ImDrawList::_OnChangedVtxOffset()
{
// We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
_VtxCurrentIdx = 0;
IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
//IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
if (curr_cmd->ElemCount != 0)
{
AddDrawCmd();
return;
}
IM_ASSERT(curr_cmd->UserCallback == NULL);
curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
}
int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
{
// Automatic segment count
const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
else
return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
}
// Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect)
{
ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
if (intersect_with_current_clip_rect)
{
ImVec4 current = _CmdHeader.ClipRect;
if (cr.x < current.x) cr.x = current.x;
if (cr.y < current.y) cr.y = current.y;
if (cr.z > current.z) cr.z = current.z;
if (cr.w > current.w) cr.w = current.w;
}
cr.z = ImMax(cr.x, cr.z);
cr.w = ImMax(cr.y, cr.w);
_ClipRectStack.push_back(cr);
_CmdHeader.ClipRect = cr;
_OnChangedClipRect();
}
void ImDrawList::PushClipRectFullScreen()
{
PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
}
void ImDrawList::PopClipRect()
{
_ClipRectStack.pop_back();
_CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
_OnChangedClipRect();
}
void ImDrawList::PushTextureID(ImTextureID texture_id)
{
_TextureIdStack.push_back(texture_id);
_CmdHeader.TextureId = texture_id;
_OnChangedTextureID();
}
void ImDrawList::PopTextureID()
{
_TextureIdStack.pop_back();
_CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
_OnChangedTextureID();
}
// Reserve space for a number of vertices and indices.
// You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
// submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
void ImDrawList::PrimReserve(int idx_count, int vtx_count)
{
// Large mesh support (when enabled)
IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
{
// FIXME: In theory we should be testing that vtx_count <64k here.
// In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
// to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
_CmdHeader.VtxOffset = VtxBuffer.Size;
_OnChangedVtxOffset();
}
ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
draw_cmd->ElemCount += idx_count;
int vtx_buffer_old_size = VtxBuffer.Size;
VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
_VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
int idx_buffer_old_size = IdxBuffer.Size;
IdxBuffer.resize(idx_buffer_old_size + idx_count);
_IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
}
// Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
{
IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
draw_cmd->ElemCount -= idx_count;
VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
IdxBuffer.shrink(IdxBuffer.Size - idx_count);
}
// Fully unrolled with inline call to keep our debug builds decently fast.
void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
{
ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_VtxCurrentIdx += 4;
_IdxWritePtr += 6;
}
void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
{
ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_VtxCurrentIdx += 4;
_IdxWritePtr += 6;
}
void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
{
ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_VtxCurrentIdx += 4;
_IdxWritePtr += 6;
}
// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
// - Those macros expects l-values and need to be used as their own statement.
// - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers.
#define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0
#define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366)
#define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0
// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness)
{
if (points_count < 2 || (col & IM_COL32_A_MASK) == 0)
return;
const bool closed = (flags & ImDrawFlags_Closed) != 0;
const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
const bool thick_line = (thickness > _FringeScale);
if (Flags & ImDrawListFlags_AntiAliasedLines)
{
// Anti-aliased stroke
const float AA_SIZE = _FringeScale;
const ImU32 col_trans = col & ~IM_COL32_A_MASK;
// Thicknesses <1.0 should behave like thickness 1.0
thickness = ImMax(thickness, 1.0f);
const int integer_thickness = (int)thickness;
const float fractional_thickness = thickness - integer_thickness;
// Do we want to draw this line using a texture?
// - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
// - If AA_SIZE is not 1.0f we cannot use the texture path.
const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
// We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
PrimReserve(idx_count, vtx_count);
// Temporary buffer
// The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
_Data->TempBuffer.reserve_discard(points_count * ((use_texture || !thick_line) ? 3 : 5));
ImVec2* temp_normals = _Data->TempBuffer.Data;
ImVec2* temp_points = temp_normals + points_count;
// Calculate normals (tangents) for each line segment
for (int i1 = 0; i1 < count; i1++)
{
const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
float dx = points[i2].x - points[i1].x;
float dy = points[i2].y - points[i1].y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
temp_normals[i1].x = dy;
temp_normals[i1].y = -dx;
}
if (!closed)
temp_normals[points_count - 1] = temp_normals[points_count - 2];
// If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
if (use_texture || !thick_line)
{
// [PATH 1] Texture-based lines (thick or non-thick)
// [PATH 2] Non texture-based lines (non-thick)
// The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
// - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
// (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
// - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
// allow scaling geometry while preserving one-screen-pixel AA fringe).
const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
// If line is not closed, the first and last points need to be generated differently as there are no normals to blend
if (!closed)
{
temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
}
// Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
// This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
{
const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
// Average normals
float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
IM_FIXNORMAL2F(dm_x, dm_y);
dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
dm_y *= half_draw_size;
// Add temporary vertexes for the outer edges
ImVec2* out_vtx = &temp_points[i2 * 2];
out_vtx[0].x = points[i2].x + dm_x;
out_vtx[0].y = points[i2].y + dm_y;
out_vtx[1].x = points[i2].x - dm_x;
out_vtx[1].y = points[i2].y - dm_y;
if (use_texture)
{
// Add indices for two triangles
_IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
_IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
_IdxWritePtr += 6;
}
else
{
// Add indexes for four triangles
_IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
_IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
_IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
_IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
_IdxWritePtr += 12;
}
idx1 = idx2;
}
// Add vertexes for each point on the line
if (use_texture)
{
// If we're using textures we only need to emit the left/right edge vertices
ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
/*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
{
const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
}*/
ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
for (int i = 0; i < points_count; i++)
{
_VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
_VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
_VtxWritePtr += 2;
}
}
else
{
// If we're not using a texture, we need the center vertex as well
for (int i = 0; i < points_count; i++)
{
_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
_VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
_VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
_VtxWritePtr += 3;
}
}
}
else
{
// [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
// If line is not closed, the first and last points need to be generated differently as there are no normals to blend
if (!closed)
{
const int points_last = points_count - 1;
temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
}
// Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
// This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
{
const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
// Average normals
float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
IM_FIXNORMAL2F(dm_x, dm_y);
float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
float dm_in_x = dm_x * half_inner_thickness;
float dm_in_y = dm_y * half_inner_thickness;
// Add temporary vertices
ImVec2* out_vtx = &temp_points[i2 * 4];
out_vtx[0].x = points[i2].x + dm_out_x;
out_vtx[0].y = points[i2].y + dm_out_y;
out_vtx[1].x = points[i2].x + dm_in_x;
out_vtx[1].y = points[i2].y + dm_in_y;
out_vtx[2].x = points[i2].x - dm_in_x;
out_vtx[2].y = points[i2].y - dm_in_y;
out_vtx[3].x = points[i2].x - dm_out_x;
out_vtx[3].y = points[i2].y - dm_out_y;
// Add indexes
_IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
_IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
_IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
_IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
_IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
_IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
_IdxWritePtr += 18;
idx1 = idx2;
}
// Add vertices
for (int i = 0; i < points_count; i++)
{
_VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
_VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
_VtxWritePtr += 4;
}
}
_VtxCurrentIdx += (ImDrawIdx)vtx_count;
}
else
{
// [PATH 4] Non texture-based, Non anti-aliased lines
const int idx_count = count * 6;
const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
PrimReserve(idx_count, vtx_count);
for (int i1 = 0; i1 < count; i1++)
{
const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
const ImVec2& p1 = points[i1];
const ImVec2& p2 = points[i2];
float dx = p2.x - p1.x;
float dy = p2.y - p1.y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
dx *= (thickness * 0.5f);
dy *= (thickness * 0.5f);
_VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
_IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
_IdxWritePtr += 6;
_VtxCurrentIdx += 4;
}
}
}
// - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
// - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
{
if (points_count < 3 || (col & IM_COL32_A_MASK) == 0)
return;
const ImVec2 uv = _Data->TexUvWhitePixel;
if (Flags & ImDrawListFlags_AntiAliasedFill)
{
// Anti-aliased Fill
const float AA_SIZE = _FringeScale;
const ImU32 col_trans = col & ~IM_COL32_A_MASK;
const int idx_count = (points_count - 2)*3 + points_count * 6;
const int vtx_count = (points_count * 2);
PrimReserve(idx_count, vtx_count);
// Add indexes for fill
unsigned int vtx_inner_idx = _VtxCurrentIdx;
unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
for (int i = 2; i < points_count; i++)
{
_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
_IdxWritePtr += 3;
}
// Compute normals
_Data->TempBuffer.reserve_discard(points_count);
ImVec2* temp_normals = _Data->TempBuffer.Data;
for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
{
const ImVec2& p0 = points[i0];
const ImVec2& p1 = points[i1];
float dx = p1.x - p0.x;
float dy = p1.y - p0.y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
temp_normals[i0].x = dy;
temp_normals[i0].y = -dx;
}
for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
{
// Average normals
const ImVec2& n0 = temp_normals[i0];
const ImVec2& n1 = temp_normals[i1];
float dm_x = (n0.x + n1.x) * 0.5f;
float dm_y = (n0.y + n1.y) * 0.5f;
IM_FIXNORMAL2F(dm_x, dm_y);
dm_x *= AA_SIZE * 0.5f;
dm_y *= AA_SIZE * 0.5f;
// Add vertices
_VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
_VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
_VtxWritePtr += 2;
// Add indexes for fringes
_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
_IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
_IdxWritePtr += 6;
}
_VtxCurrentIdx += (ImDrawIdx)vtx_count;
}
else
{
// Non Anti-aliased Fill
const int idx_count = (points_count - 2)*3;
const int vtx_count = points_count;
PrimReserve(idx_count, vtx_count);
for (int i = 0; i < vtx_count; i++)
{
_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
_VtxWritePtr++;
}
for (int i = 2; i < points_count; i++)
{
_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
_IdxWritePtr += 3;
}
_VtxCurrentIdx += (ImDrawIdx)vtx_count;
}
}
void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
{
if (radius < 0.5f)
{
_Path.push_back(center);
return;
}
// Calculate arc auto segment step size
if (a_step <= 0)
a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius);
// Make sure we never do steps larger than one quarter of the circle
a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4);
const int sample_range = ImAbs(a_max_sample - a_min_sample);
const int a_next_step = a_step;
int samples = sample_range + 1;
bool extra_max_sample = false;
if (a_step > 1)
{
samples = sample_range / a_step + 1;
const int overstep = sample_range % a_step;
if (overstep > 0)
{
extra_max_sample = true;
samples++;
// When we have overstep to avoid awkwardly looking one long line and one tiny one at the end,
// distribute first step range evenly between them by reducing first step size.
if (sample_range > 0)
a_step -= (a_step - overstep) / 2;
}
}
_Path.resize(_Path.Size + samples);
ImVec2* out_ptr = _Path.Data + (_Path.Size - samples);
int sample_index = a_min_sample;
if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
{
sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
if (sample_index < 0)
sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
}
if (a_max_sample >= a_min_sample)
{
for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step)
{
// a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
const ImVec2 s = _Data->ArcFastVtx[sample_index];
out_ptr->x = center.x + s.x * radius;
out_ptr->y = center.y + s.y * radius;
out_ptr++;
}
}
else
{
for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step)
{
// a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
if (sample_index < 0)
sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
const ImVec2 s = _Data->ArcFastVtx[sample_index];
out_ptr->x = center.x + s.x * radius;
out_ptr->y = center.y + s.y * radius;
out_ptr++;
}
}
if (extra_max_sample)
{
int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
if (normalized_max_sample < 0)
normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample];
out_ptr->x = center.x + s.x * radius;
out_ptr->y = center.y + s.y * radius;
out_ptr++;
}
IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr);
}
void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
{
if (radius < 0.5f)
{
_Path.push_back(center);
return;
}
// Note that we are adding a point at both a_min and a_max.
// If you are trying to draw a full closed circle you don't want the overlapping points!
_Path.reserve(_Path.Size + (num_segments + 1));
for (int i = 0; i <= num_segments; i++)
{
const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
_Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
}
}
// 0: East, 3: South, 6: West, 9: North, 12: East
void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
{
if (radius < 0.5f)
{
_Path.push_back(center);
return;
}
_PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0);
}
void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
{
if (radius < 0.5f)
{
_Path.push_back(center);
return;
}
if (num_segments > 0)
{
_PathArcToN(center, radius, a_min, a_max, num_segments);
return;
}
// Automatic segment count
if (radius <= _Data->ArcFastRadiusCutoff)
{
const bool a_is_reverse = a_max < a_min;
// We are going to use precomputed values for mid samples.
// Determine first and last sample in lookup table that belong to the arc.
const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);
const int a_min_sample = a_is_reverse ? (int)ImFloorSigned(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloorSigned(a_max_sample_f);
const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0);
const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
const bool a_emit_start = ImAbs(a_min_segment_angle - a_min) >= 1e-5f;
const bool a_emit_end = ImAbs(a_max - a_max_segment_angle) >= 1e-5f;
_Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
if (a_emit_start)
_Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius));
if (a_mid_samples > 0)
_PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0);
if (a_emit_end)
_Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius));
}
else
{
const float arc_length = ImAbs(a_max - a_min);
const int circle_segment_count = _CalcCircleAutoSegmentCount(radius);
const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length));
_PathArcToN(center, radius, a_min, a_max, arc_segment_count);
}
}
ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
{
float u = 1.0f - t;
float w1 = u * u * u;
float w2 = 3 * u * u * t;
float w3 = 3 * u * t * t;
float w4 = t * t * t;
return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y);
}
ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
{
float u = 1.0f - t;
float w1 = u * u;
float w2 = 2 * u * t;
float w3 = t * t;
return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
}
// Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp
static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
{
float dx = x4 - x1;
float dy = y4 - y1;
float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
d2 = (d2 >= 0) ? d2 : -d2;
d3 = (d3 >= 0) ? d3 : -d3;
if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
{
path->push_back(ImVec2(x4, y4));
}
else if (level < 10)
{
float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
}
}
static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
{
float dx = x3 - x1, dy = y3 - y1;
float det = (x2 - x3) * dy - (y2 - y3) * dx;
if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
{
path->push_back(ImVec2(x3, y3));
}
else if (level < 10)
{
float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1);
PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1);
}
}
void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
{
ImVec2 p1 = _Path.back();
if (num_segments == 0)
{
IM_ASSERT(_Data->CurveTessellationTol > 0.0f);
PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
}
else
{
float t_step = 1.0f / (float)num_segments;
for (int i_step = 1; i_step <= num_segments; i_step++)
_Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step));
}
}
void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
{
ImVec2 p1 = _Path.back();
if (num_segments == 0)
{
IM_ASSERT(_Data->CurveTessellationTol > 0.0f);
PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated
}
else
{
float t_step = 1.0f / (float)num_segments;
for (int i_step = 1; i_step <= num_segments; i_step++)
_Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step));
}
}
IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
{
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Obsoleted in 1.82 (from February 2021)
// Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
// ~0 --> ImDrawFlags_RoundCornersAll or 0
if (flags == ~0)
return ImDrawFlags_RoundCornersAll;
// Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations)
// 0x01 --> ImDrawFlags_RoundCornersTopLeft (VALUE 0x01 OVERLAPS ImDrawFlags_Closed but ImDrawFlags_Closed is never valid in this path!)
// 0x02 --> ImDrawFlags_RoundCornersTopRight
// 0x03 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight
// 0x04 --> ImDrawFlags_RoundCornersBotLeft
// 0x05 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBotLeft
// ...
// 0x0F --> ImDrawFlags_RoundCornersAll or 0
// (See all values in ImDrawCornerFlags_)
if (flags >= 0x01 && flags <= 0x0F)
return (flags << 4);
// We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
#endif
// If this triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
// Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc...
IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
flags |= ImDrawFlags_RoundCornersAll;
return flags;
}
void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
{
flags = FixRectCornerFlags(flags);
rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f ) - 1.0f);
rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f ) - 1.0f);
if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
{
PathLineTo(a);
PathLineTo(ImVec2(b.x, a.y));
PathLineTo(b);
PathLineTo(ImVec2(a.x, b.y));
}
else
{
const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f;
const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f;
const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f;
const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f;
PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
}
}
void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1 + ImVec2(0.5f, 0.5f));
PathLineTo(p2 + ImVec2(0.5f, 0.5f));
PathStroke(col, 0, thickness);
}
// p_min = upper-left, p_max = lower-right
// Note we don't render 1 pixels sized rectangles properly.
void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (Flags & ImDrawListFlags_AntiAliasedLines)
PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags);
else
PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes.
PathStroke(col, ImDrawFlags_Closed, thickness);
}
void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
{
PrimReserve(6, 4);
PrimRect(p_min, p_max, col);
}
else
{
PathRect(p_min, p_max, rounding, flags);
PathFillConvex(col);
}
}
// p_min = upper-left, p_max = lower-right
void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
{
if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
return;
const ImVec2 uv = _Data->TexUvWhitePixel;
PrimReserve(6, 4);
PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
PrimWriteVtx(p_min, uv, col_upr_left);
PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
PrimWriteVtx(p_max, uv, col_bot_right);
PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
}
void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1);
PathLineTo(p2);
PathLineTo(p3);
PathLineTo(p4);
PathStroke(col, ImDrawFlags_Closed, thickness);
}
void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1);
PathLineTo(p2);
PathLineTo(p3);
PathLineTo(p4);
PathFillConvex(col);
}
void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1);
PathLineTo(p2);
PathLineTo(p3);
PathStroke(col, ImDrawFlags_Closed, thickness);
}
void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1);
PathLineTo(p2);
PathLineTo(p3);
PathFillConvex(col);
}
void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
return;
if (num_segments <= 0)
{
// Use arc with automatic segment count
_PathArcToFastEx(center, radius - 0.5f, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
_Path.Size--;
}
else
{
// Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
}
PathStroke(col, ImDrawFlags_Closed, thickness);
}
void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
return;
if (num_segments <= 0)
{
// Use arc with automatic segment count
_PathArcToFastEx(center, radius, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
_Path.Size--;
}
else
{
// Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
}
PathFillConvex(col);
}
// Guaranteed to honor 'num_segments'
void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
return;
// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
PathStroke(col, ImDrawFlags_Closed, thickness);
}
// Guaranteed to honor 'num_segments'
void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
return;
// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
PathFillConvex(col);
}
// Cubic Bezier takes 4 controls points
void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1);
PathBezierCubicCurveTo(p2, p3, p4, num_segments);
PathStroke(col, 0, thickness);
}
// Quadratic Bezier takes 3 controls points
void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(p1);
PathBezierQuadraticCurveTo(p2, p3, num_segments);
PathStroke(col, 0, thickness);
}
void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (text_end == NULL)
text_end = text_begin + strlen(text_begin);
if (text_begin == text_end)
return;
// Pull default font/size from the shared ImDrawListSharedData instance
if (font == NULL)
font = _Data->Font;
if (font_size == 0.0f)
font_size = _Data->FontSize;
IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
ImVec4 clip_rect = _CmdHeader.ClipRect;
if (cpu_fine_clip_rect)
{
clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
}
font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
}
void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
{
AddText(NULL, 0.0f, pos, col, text_begin, text_end);
}
void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
if (push_texture_id)
PushTextureID(user_texture_id);
PrimReserve(6, 4);
PrimRectUV(p_min, p_max, uv_min, uv_max, col);
if (push_texture_id)
PopTextureID();
}
void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
if (push_texture_id)
PushTextureID(user_texture_id);
PrimReserve(6, 4);
PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
if (push_texture_id)
PopTextureID();
}
void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
flags = FixRectCornerFlags(flags);
if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
{
AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
return;
}
const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
if (push_texture_id)
PushTextureID(user_texture_id);
int vert_start_idx = VtxBuffer.Size;
PathRect(p_min, p_max, rounding, flags);
PathFillConvex(col);
int vert_end_idx = VtxBuffer.Size;
ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
if (push_texture_id)
PopTextureID();
}
//-----------------------------------------------------------------------------
// [SECTION] ImDrawListSplitter
//-----------------------------------------------------------------------------
// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
//-----------------------------------------------------------------------------
void ImDrawListSplitter::ClearFreeMemory()
{
for (int i = 0; i < _Channels.Size; i++)
{
if (i == _Current)
memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
_Channels[i]._CmdBuffer.clear();
_Channels[i]._IdxBuffer.clear();
}
_Current = 0;
_Count = 1;
_Channels.clear();
}
void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
{
IM_UNUSED(draw_list);
IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
int old_channels_count = _Channels.Size;
if (old_channels_count < channels_count)
{
_Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable
_Channels.resize(channels_count);
}
_Count = channels_count;
// Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
// The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
// When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
memset(&_Channels[0], 0, sizeof(ImDrawChannel));
for (int i = 1; i < channels_count; i++)
{
if (i >= old_channels_count)
{
IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
}
else
{
_Channels[i]._CmdBuffer.resize(0);
_Channels[i]._IdxBuffer.resize(0);
}
}
}
void ImDrawListSplitter::Merge(ImDrawList* draw_list)
{
// Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
if (_Count <= 1)
return;
SetCurrentChannel(draw_list, 0);
draw_list->_PopUnusedDrawCmd();
// Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
int new_cmd_buffer_count = 0;
int new_idx_buffer_count = 0;
ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
for (int i = 1; i < _Count; i++)
{
ImDrawChannel& ch = _Channels[i];
if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
ch._CmdBuffer.pop_back();
if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
{
// Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves.
// Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter.
ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
{
// Merge previous channel last draw command with current channel first draw command if matching.
last_cmd->ElemCount += next_cmd->ElemCount;
idx_offset += next_cmd->ElemCount;
ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
}
}
if (ch._CmdBuffer.Size > 0)
last_cmd = &ch._CmdBuffer.back();
new_cmd_buffer_count += ch._CmdBuffer.Size;
new_idx_buffer_count += ch._IdxBuffer.Size;
for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
{
ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
}
}
draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
// Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
for (int i = 1; i < _Count; i++)
{
ImDrawChannel& ch = _Channels[i];
if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
}
draw_list->_IdxWritePtr = idx_write;
// Ensure there's always a non-callback draw command trailing the command-buffer
if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
draw_list->AddDrawCmd();
// If current command is used with different settings we need to add a new command
ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
if (curr_cmd->ElemCount == 0)
ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
draw_list->AddDrawCmd();
_Count = 1;
}
void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
{
IM_ASSERT(idx >= 0 && idx < _Count);
if (_Current == idx)
return;
// Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
_Current = idx;
memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
// If current command is used with different settings we need to add a new command
ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
if (curr_cmd == NULL)
draw_list->AddDrawCmd();
else if (curr_cmd->ElemCount == 0)
ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
draw_list->AddDrawCmd();
}
//-----------------------------------------------------------------------------
// [SECTION] ImDrawData
//-----------------------------------------------------------------------------
// For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
void ImDrawData::DeIndexAllBuffers()
{
ImVector<ImDrawVert> new_vtx_buffer;
TotalVtxCount = TotalIdxCount = 0;
for (int i = 0; i < CmdListsCount; i++)
{
ImDrawList* cmd_list = CmdLists[i];
if (cmd_list->IdxBuffer.empty())
continue;
new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
cmd_list->VtxBuffer.swap(new_vtx_buffer);
cmd_list->IdxBuffer.resize(0);
TotalVtxCount += cmd_list->VtxBuffer.Size;
}
}
// Helper to scale the ClipRect field of each ImDrawCmd.
// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
// or if there is a difference between your window resolution and framebuffer resolution.
void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
{
for (int i = 0; i < CmdListsCount; i++)
{
ImDrawList* cmd_list = CmdLists[i];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] Helpers ShadeVertsXXX functions
//-----------------------------------------------------------------------------
// Generic linear color gradient, write to RGB fields, leave A untouched.
void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
{
ImVec2 gradient_extent = gradient_p1 - gradient_p0;
float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
{
float d = ImDot(vert->pos - gradient_p0, gradient_extent);
float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
int r = (int)(col0_r + col_delta_r * t);
int g = (int)(col0_g + col_delta_g * t);
int b = (int)(col0_b + col_delta_b * t);
vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
}
}
// Distribute UV over (a, b) rectangle
void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
{
const ImVec2 size = b - a;
const ImVec2 uv_size = uv_b - uv_a;
const ImVec2 scale = ImVec2(
size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
if (clamp)
{
const ImVec2 min = ImMin(uv_a, uv_b);
const ImVec2 max = ImMax(uv_a, uv_b);
for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
}
else
{
for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
}
}
//-----------------------------------------------------------------------------
// [SECTION] ImFontConfig
//-----------------------------------------------------------------------------
ImFontConfig::ImFontConfig()
{
memset(this, 0, sizeof(*this));
FontDataOwnedByAtlas = true;
OversampleH = 3; // FIXME: 2 may be a better default?
OversampleV = 1;
GlyphMaxAdvanceX = FLT_MAX;
RasterizerMultiply = 1.0f;
EllipsisChar = (ImWchar)-1;
}
//-----------------------------------------------------------------------------
// [SECTION] ImFontAtlas
//-----------------------------------------------------------------------------
// A work of art lies ahead! (. = white layer, X = black layer, others are blank)
// The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
// (This is used when io.MouseDrawCursor = true)
const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 122; // Actual texture will be 2 times that + 1 spacing.
const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
{
"..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX - XX XX "
"..- -X.....X- X.X - X.X -X.....X - X.....X- X..X -X..X X..X"
"--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X -X...X X...X"
"X - X.X - X.....X - X.....X -X...X - X...X- X..X - X...X X...X "
"XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X - X...X...X "
"X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX - X.....X "
"X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX - X...X "
"X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX - X.X "
"X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X - X...X "
"X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X- X.....X "
"X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X- X...X...X "
"X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X- X...X X...X "
"X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X-X...X X...X"
"X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X-X..X X..X"
"X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X- XX XX "
"X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X--------------"
"X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X - "
"X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X - "
"X.X X..X - -X.......X- X.......X - XX XX - - X..........X - "
"XX X..X - - X.....X - X.....X - X.X X.X - - X........X - "
" X..X - - X...X - X...X - X..X X..X - - X........X - "
" XX - - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX - "
"------------- - X - X -X.....................X- ------------------- "
" ----------------------------------- X...XXXXXXXXXXXXX...X - "
" - X..X X..X - "
" - X.X X.X - "
" - XX XX - "
};
static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
{
// Pos ........ Size ......... Offset ......
{ ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
{ ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
{ ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
{ ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
{ ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
{ ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
{ ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
{ ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
{ ImVec2(109,0),ImVec2(13,15), ImVec2( 6, 7) }, // ImGuiMouseCursor_NotAllowed
};
ImFontAtlas::ImFontAtlas()
{
memset(this, 0, sizeof(*this));
TexGlyphPadding = 1;
PackIdMouseCursors = PackIdLines = -1;
}
ImFontAtlas::~ImFontAtlas()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
Clear();
}
void ImFontAtlas::ClearInputData()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
for (int i = 0; i < ConfigData.Size; i++)
if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
{
IM_FREE(ConfigData[i].FontData);
ConfigData[i].FontData = NULL;
}
// When clearing this we lose access to the font name and other information used to build the font.
for (int i = 0; i < Fonts.Size; i++)
if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
{
Fonts[i]->ConfigData = NULL;
Fonts[i]->ConfigDataCount = 0;
}
ConfigData.clear();
CustomRects.clear();
PackIdMouseCursors = PackIdLines = -1;
// Important: we leave TexReady untouched
}
void ImFontAtlas::ClearTexData()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
if (TexPixelsAlpha8)
IM_FREE(TexPixelsAlpha8);
if (TexPixelsRGBA32)
IM_FREE(TexPixelsRGBA32);
TexPixelsAlpha8 = NULL;
TexPixelsRGBA32 = NULL;
TexPixelsUseColors = false;
// Important: we leave TexReady untouched
}
void ImFontAtlas::ClearFonts()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
Fonts.clear_delete();
TexReady = false;
}
void ImFontAtlas::Clear()
{
ClearInputData();
ClearTexData();
ClearFonts();
}
void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
{
// Build atlas on demand
if (TexPixelsAlpha8 == NULL)
Build();
*out_pixels = TexPixelsAlpha8;
if (out_width) *out_width = TexWidth;
if (out_height) *out_height = TexHeight;
if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
}
void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
{
// Convert to RGBA32 format on demand
// Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
if (!TexPixelsRGBA32)
{
unsigned char* pixels = NULL;
GetTexDataAsAlpha8(&pixels, NULL, NULL);
if (pixels)
{
TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
const unsigned char* src = pixels;
unsigned int* dst = TexPixelsRGBA32;
for (int n = TexWidth * TexHeight; n > 0; n--)
*dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
}
}
*out_pixels = (unsigned char*)TexPixelsRGBA32;
if (out_width) *out_width = TexWidth;
if (out_height) *out_height = TexHeight;
if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
}
ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
IM_ASSERT(font_cfg->SizePixels > 0.0f);
// Create new font
if (!font_cfg->MergeMode)
Fonts.push_back(IM_NEW(ImFont));
else
IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
ConfigData.push_back(*font_cfg);
ImFontConfig& new_font_cfg = ConfigData.back();
if (new_font_cfg.DstFont == NULL)
new_font_cfg.DstFont = Fonts.back();
if (!new_font_cfg.FontDataOwnedByAtlas)
{
new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
new_font_cfg.FontDataOwnedByAtlas = true;
memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
}
if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
// Invalidate texture
TexReady = false;
ClearTexData();
return new_font_cfg.DstFont;
}
// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
static unsigned int stb_decompress_length(const unsigned char* input);
static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
static const char* GetDefaultCompressedFontDataTTFBase85();
static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
static void Decode85(const unsigned char* src, unsigned char* dst)
{
while (*src)
{
unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness.
src += 5;
dst += 4;
}
}
// Load embedded ProggyClean.ttf at size 13, disable oversampling
ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
{
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
if (!font_cfg_template)
{
font_cfg.OversampleH = font_cfg.OversampleV = 1;
font_cfg.PixelSnapH = true;
}
if (font_cfg.SizePixels <= 0.0f)
font_cfg.SizePixels = 13.0f * 1.0f;
if (font_cfg.Name[0] == '\0')
ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
font_cfg.EllipsisChar = (ImWchar)0x0085;
font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
return font;
}
ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
size_t data_size = 0;
void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
if (!data)
{
IM_ASSERT_USER_ERROR(0, "Could not load font file!");
return NULL;
}
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
if (font_cfg.Name[0] == '\0')
{
// Store a short copy of filename into into the font name for convenience
const char* p;
for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
}
return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
}
// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
IM_ASSERT(font_cfg.FontData == NULL);
font_cfg.FontData = ttf_data;
font_cfg.FontDataSize = ttf_size;
font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
if (glyph_ranges)
font_cfg.GlyphRanges = glyph_ranges;
return AddFont(&font_cfg);
}
ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
IM_ASSERT(font_cfg.FontData == NULL);
font_cfg.FontDataOwnedByAtlas = true;
return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
}
ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
{
int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
IM_FREE(compressed_ttf);
return font;
}
int ImFontAtlas::AddCustomRectRegular(int width, int height)
{
IM_ASSERT(width > 0 && width <= 0xFFFF);
IM_ASSERT(height > 0 && height <= 0xFFFF);
ImFontAtlasCustomRect r;
r.Width = (unsigned short)width;
r.Height = (unsigned short)height;
CustomRects.push_back(r);
return CustomRects.Size - 1; // Return index
}
int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
{
#ifdef IMGUI_USE_WCHAR32
IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
#endif
IM_ASSERT(font != NULL);
IM_ASSERT(width > 0 && width <= 0xFFFF);
IM_ASSERT(height > 0 && height <= 0xFFFF);
ImFontAtlasCustomRect r;
r.Width = (unsigned short)width;
r.Height = (unsigned short)height;
r.GlyphID = id;
r.GlyphAdvanceX = advance_x;
r.GlyphOffset = offset;
r.Font = font;
CustomRects.push_back(r);
return CustomRects.Size - 1; // Return index
}
void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
{
IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
*out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
*out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
}
bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
{
if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
return false;
if (Flags & ImFontAtlasFlags_NoMouseCursors)
return false;
IM_ASSERT(PackIdMouseCursors != -1);
ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
*out_size = size;
*out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
out_uv_border[0] = (pos) * TexUvScale;
out_uv_border[1] = (pos + size) * TexUvScale;
pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
out_uv_fill[0] = (pos) * TexUvScale;
out_uv_fill[1] = (pos + size) * TexUvScale;
return true;
}
bool ImFontAtlas::Build()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
// Default font is none are specified
if (ConfigData.Size == 0)
AddFontDefault();
// Select builder
// - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which
// may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are
// using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere
// and point to it instead of pointing directly to return value of the GetBuilderXXX functions.
const ImFontBuilderIO* builder_io = FontBuilderIO;
if (builder_io == NULL)
{
#ifdef IMGUI_ENABLE_FREETYPE
builder_io = ImGuiFreeType::GetBuilderForFreeType();
#elif defined(IMGUI_ENABLE_STB_TRUETYPE)
builder_io = ImFontAtlasGetBuilderForStbTruetype();
#else
IM_ASSERT(0); // Invalid Build function
#endif
}
// Build
return builder_io->FontBuilder_Build(this);
}
void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
{
for (unsigned int i = 0; i < 256; i++)
{
unsigned int value = (unsigned int)(i * in_brighten_factor);
out_table[i] = value > 255 ? 255 : (value & 0xFF);
}
}
void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
{
IM_ASSERT_PARANOID(w <= stride);
unsigned char* data = pixels + x + y * stride;
for (int j = h; j > 0; j--, data += stride - w)
for (int i = w; i > 0; i--, data++)
*data = table[*data];
}
#ifdef IMGUI_ENABLE_STB_TRUETYPE
// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
struct ImFontBuildSrcData
{
stbtt_fontinfo FontInfo;
stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
stbtt_packedchar* PackedChars; // Output glyphs
const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
int GlyphsHighest; // Highest requested codepoint
int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsSet)
};
// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
struct ImFontBuildDstData
{
int SrcCount; // Number of source fonts targeting this destination font.
int GlyphsHighest;
int GlyphsCount;
ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
};
static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
{
IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
const ImU32* it_begin = in->Storage.begin();
const ImU32* it_end = in->Storage.end();
for (const ImU32* it = it_begin; it < it_end; it++)
if (ImU32 entries_32 = *it)
for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
if (entries_32 & ((ImU32)1 << bit_n))
out->push_back((int)(((it - it_begin) << 5) + bit_n));
}
static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
{
IM_ASSERT(atlas->ConfigData.Size > 0);
ImFontAtlasBuildInit(atlas);
// Clear atlas
atlas->TexID = (ImTextureID)NULL;
atlas->TexWidth = atlas->TexHeight = 0;
atlas->TexUvScale = ImVec2(0.0f, 0.0f);
atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
atlas->ClearTexData();
// Temporary storage for building
ImVector<ImFontBuildSrcData> src_tmp_array;
ImVector<ImFontBuildDstData> dst_tmp_array;
src_tmp_array.resize(atlas->ConfigData.Size);
dst_tmp_array.resize(atlas->Fonts.Size);
memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
// 1. Initialize font loading structure, check font data validity
for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
ImFontConfig& cfg = atlas->ConfigData[src_i];
IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
// Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
src_tmp.DstIndex = -1;
for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
if (cfg.DstFont == atlas->Fonts[output_i])
src_tmp.DstIndex = output_i;
if (src_tmp.DstIndex == -1)
{
IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
return false;
}
// Initialize helper structure for font loading and verify that the TTF/OTF data is correct
const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
return false;
// Measure highest codepoints
ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
{
// Check for valid range. This may also help detect *some* dangling pointers, because a common
// user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent.
IM_ASSERT(src_range[0] <= src_range[1]);
src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
}
dst_tmp.SrcCount++;
dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
}
// 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
int total_glyphs_count = 0;
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
if (dst_tmp.GlyphsSet.Storage.empty())
dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
{
if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
continue;
if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
continue;
// Add to avail set/counters
src_tmp.GlyphsCount++;
dst_tmp.GlyphsCount++;
src_tmp.GlyphsSet.SetBit(codepoint);
dst_tmp.GlyphsSet.SetBit(codepoint);
total_glyphs_count++;
}
}
// 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
src_tmp.GlyphsSet.Clear();
IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
}
for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
dst_tmp_array[dst_i].GlyphsSet.Clear();
dst_tmp_array.clear();
// Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
// (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
ImVector<stbrp_rect> buf_rects;
ImVector<stbtt_packedchar> buf_packedchars;
buf_rects.resize(total_glyphs_count);
buf_packedchars.resize(total_glyphs_count);
memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
// 4. Gather glyphs sizes so we can pack them in our virtual canvas.
int total_surface = 0;
int buf_rects_out_n = 0;
int buf_packedchars_out_n = 0;
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
src_tmp.Rects = &buf_rects[buf_rects_out_n];
src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
buf_rects_out_n += src_tmp.GlyphsCount;
buf_packedchars_out_n += src_tmp.GlyphsCount;
// Convert our ranges in the format stb_truetype wants
ImFontConfig& cfg = atlas->ConfigData[src_i];
src_tmp.PackRange.font_size = cfg.SizePixels;
src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
// Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
const int padding = atlas->TexGlyphPadding;
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
{
int x0, y0, x1, y1;
const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
IM_ASSERT(glyph_index_in_font != 0);
stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
}
}
// We need a width for the skyline algorithm, any width!
// The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
// User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
atlas->TexHeight = 0;
if (atlas->TexDesiredWidth > 0)
atlas->TexWidth = atlas->TexDesiredWidth;
else
atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
// 5. Start packing
// Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
const int TEX_HEIGHT_MAX = 1024 * 32;
stbtt_pack_context spc = {};
stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
// 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
// Extend texture height and mark missing glyphs as non-packed so we won't render them.
// FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
if (src_tmp.Rects[glyph_i].was_packed)
atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
}
// 7. Allocate texture
atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
spc.pixels = atlas->TexPixelsAlpha8;
spc.height = atlas->TexHeight;
// 8. Render/rasterize font characters into the texture
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontConfig& cfg = atlas->ConfigData[src_i];
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
// Apply multiply operator
if (cfg.RasterizerMultiply != 1.0f)
{
unsigned char multiply_table[256];
ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
stbrp_rect* r = &src_tmp.Rects[0];
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
if (r->was_packed)
ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
}
src_tmp.Rects = NULL;
}
// End packing
stbtt_PackEnd(&spc);
buf_rects.clear();
// 9. Setup ImFont and glyphs for runtime
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
// When merging fonts with MergeMode=true:
// - We can have multiple input fonts writing into a same destination font.
// - dst_font->ConfigData is != from cfg which is our source configuration.
ImFontConfig& cfg = atlas->ConfigData[src_i];
ImFont* dst_font = cfg.DstFont;
const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
int unscaled_ascent, unscaled_descent, unscaled_line_gap;
stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
const float font_off_x = cfg.GlyphOffset.x;
const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
{
// Register glyph
const int codepoint = src_tmp.GlyphsList[glyph_i];
const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
stbtt_aligned_quad q;
float unused_x = 0.0f, unused_y = 0.0f;
stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
}
}
// Cleanup
src_tmp_array.clear_destruct();
ImFontAtlasBuildFinish(atlas);
return true;
}
const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype()
{
static ImFontBuilderIO io;
io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype;
return &io;
}
#endif // IMGUI_ENABLE_STB_TRUETYPE
void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
{
if (!font_config->MergeMode)
{
font->ClearOutputData();
font->FontSize = font_config->SizePixels;
font->ConfigData = font_config;
font->ConfigDataCount = 0;
font->ContainerAtlas = atlas;
font->Ascent = ascent;
font->Descent = descent;
}
font->ConfigDataCount++;
}
void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
{
stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
IM_ASSERT(pack_context != NULL);
ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
ImVector<stbrp_rect> pack_rects;
pack_rects.resize(user_rects.Size);
memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
for (int i = 0; i < user_rects.Size; i++)
{
pack_rects[i].w = user_rects[i].Width;
pack_rects[i].h = user_rects[i].Height;
}
stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
for (int i = 0; i < pack_rects.Size; i++)
if (pack_rects[i].was_packed)
{
user_rects[i].X = (unsigned short)pack_rects[i].x;
user_rects[i].Y = (unsigned short)pack_rects[i].y;
IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
}
}
void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
{
IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
for (int off_x = 0; off_x < w; off_x++)
out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
}
void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value)
{
IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
unsigned int* out_pixel = atlas->TexPixelsRGBA32 + x + (y * atlas->TexWidth);
for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
for (int off_x = 0; off_x < w; off_x++)
out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : IM_COL32_BLACK_TRANS;
}
static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
{
ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
IM_ASSERT(r->IsPacked());
const int w = atlas->TexWidth;
if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
{
// Render/copy pixels
IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
const int x_for_white = r->X;
const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
if (atlas->TexPixelsAlpha8 != NULL)
{
ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
}
else
{
ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE);
ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE);
}
}
else
{
// Render 4 white pixels
IM_ASSERT(r->Width == 2 && r->Height == 2);
const int offset = (int)r->X + (int)r->Y * w;
if (atlas->TexPixelsAlpha8 != NULL)
{
atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
}
else
{
atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE;
}
}
atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
}
static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
{
if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
return;
// This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
IM_ASSERT(r->IsPacked());
for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
{
// Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
unsigned int y = n;
unsigned int line_width = n;
unsigned int pad_left = (r->Width - line_width) / 2;
unsigned int pad_right = r->Width - (pad_left + line_width);
// Write each slice
IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
if (atlas->TexPixelsAlpha8 != NULL)
{
unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
for (unsigned int i = 0; i < pad_left; i++)
*(write_ptr + i) = 0x00;
for (unsigned int i = 0; i < line_width; i++)
*(write_ptr + pad_left + i) = 0xFF;
for (unsigned int i = 0; i < pad_right; i++)
*(write_ptr + pad_left + line_width + i) = 0x00;
}
else
{
unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)];
for (unsigned int i = 0; i < pad_left; i++)
*(write_ptr + i) = IM_COL32(255, 255, 255, 0);
for (unsigned int i = 0; i < line_width; i++)
*(write_ptr + pad_left + i) = IM_COL32_WHITE;
for (unsigned int i = 0; i < pad_right; i++)
*(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0);
}
// Calculate UVs for this line
ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
}
}
// Note: this is called / shared by both the stb_truetype and the FreeType builder
void ImFontAtlasBuildInit(ImFontAtlas* atlas)
{
// Register texture region for mouse cursors or standard white pixels
if (atlas->PackIdMouseCursors < 0)
{
if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
else
atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
}
// Register texture region for thick lines
// The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
if (atlas->PackIdLines < 0)
{
if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
}
}
// This is called/shared by both the stb_truetype and the FreeType builder.
void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
{
// Render into our custom data blocks
IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL);
ImFontAtlasBuildRenderDefaultTexData(atlas);
ImFontAtlasBuildRenderLinesTexData(atlas);
// Register custom rectangle glyphs
for (int i = 0; i < atlas->CustomRects.Size; i++)
{
const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
if (r->Font == NULL || r->GlyphID == 0)
continue;
// Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
IM_ASSERT(r->Font->ContainerAtlas == atlas);
ImVec2 uv0, uv1;
atlas->CalcCustomRectUV(r, &uv0, &uv1);
r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
}
// Build all fonts lookup tables
for (int i = 0; i < atlas->Fonts.Size; i++)
if (atlas->Fonts[i]->DirtyLookupTables)
atlas->Fonts[i]->BuildLookupTable();
atlas->TexReady = true;
}
// Retrieve list of range (2 int per range, values are inclusive)
const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesGreek()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x0370, 0x03FF, // Greek and Coptic
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x3131, 0x3163, // Korean alphabets
0xAC00, 0xD7A3, // Korean characters
0xFFFD, 0xFFFD, // Invalid
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x2000, 0x206F, // General Punctuation
0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
0x31F0, 0x31FF, // Katakana Phonetic Extensions
0xFF00, 0xFFEF, // Half-width characters
0xFFFD, 0xFFFD, // Invalid
0x4e00, 0x9FAF, // CJK Ideograms
0,
};
return &ranges[0];
}
static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
{
for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
{
out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
base_codepoint += accumulative_offsets[n];
}
out_ranges[0] = 0;
}
//-------------------------------------------------------------------------
// [SECTION] ImFontAtlas glyph ranges helpers
//-------------------------------------------------------------------------
const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
{
// Store 2500 regularly used characters for Simplified Chinese.
// Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
// This table covers 97.97% of all characters used during the month in July, 1987.
// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
static const short accumulative_offsets_from_0x4E00[] =
{
0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
};
static ImWchar base_ranges[] = // not zero-terminated
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x2000, 0x206F, // General Punctuation
0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
0x31F0, 0x31FF, // Katakana Phonetic Extensions
0xFF00, 0xFFEF, // Half-width characters
0xFFFD, 0xFFFD // Invalid
};
static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
if (!full_ranges[0])
{
memcpy(full_ranges, base_ranges, sizeof(base_ranges));
UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
}
return &full_ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
{
// 2999 ideograms code points for Japanese
// - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
// - 863 Jinmeiyo (meaning "for personal name") Kanji code points
// - Sourced from official information provided by the government agencies of Japan:
// - List of Joyo Kanji by the Agency for Cultural Affairs
// - https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kijun/naikaku/kanji/
// - List of Jinmeiyo Kanji by the Ministry of Justice
// - http://www.moj.go.jp/MINJI/minji86.html
// - Available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0).
// - https://creativecommons.org/licenses/by/4.0/legalcode
// - You can generate this code by the script at:
// - https://github.com/vaiorabbit/everyday_use_kanji
// - References:
// - List of Joyo Kanji
// - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji
// - List of Jinmeiyo Kanji
// - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji
// - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
static const short accumulative_offsets_from_0x4E00[] =
{
0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1,
1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3,
2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8,
2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5,
2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1,
1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30,
2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3,
13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4,
5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14,
2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1,
1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1,
7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1,
1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1,
6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2,
10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7,
2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5,
3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1,
6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7,
4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2,
4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5,
1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6,
12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2,
1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16,
22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11,
2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18,
18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9,
14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3,
1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6,
40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1,
12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8,
2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1,
1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10,
1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5,
3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2,
14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5,
12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1,
2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5,
1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4,
3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7,
2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5,
13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13,
18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21,
37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1,
5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38,
32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4,
1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4,
4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,
3,2,1,1,1,1,2,1,1,
};
static ImWchar base_ranges[] = // not zero-terminated
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
0x31F0, 0x31FF, // Katakana Phonetic Extensions
0xFF00, 0xFFEF, // Half-width characters
0xFFFD, 0xFFFD // Invalid
};
static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
if (!full_ranges[0])
{
memcpy(full_ranges, base_ranges, sizeof(base_ranges));
UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
}
return &full_ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
0x2DE0, 0x2DFF, // Cyrillic Extended-A
0xA640, 0xA69F, // Cyrillic Extended-B
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesThai()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin
0x2010, 0x205E, // Punctuations
0x0E00, 0x0E7F, // Thai
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin
0x0102, 0x0103,
0x0110, 0x0111,
0x0128, 0x0129,
0x0168, 0x0169,
0x01A0, 0x01A1,
0x01AF, 0x01B0,
0x1EA0, 0x1EF9,
0,
};
return &ranges[0];
}
//-----------------------------------------------------------------------------
// [SECTION] ImFontGlyphRangesBuilder
//-----------------------------------------------------------------------------
void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
{
while (text_end ? (text < text_end) : *text)
{
unsigned int c = 0;
int c_len = ImTextCharFromUtf8(&c, text, text_end);
text += c_len;
if (c_len == 0)
break;
AddChar((ImWchar)c);
}
}
void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
{
for (; ranges[0]; ranges += 2)
for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560
AddChar((ImWchar)c);
}
void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
{
const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
for (int n = 0; n <= max_codepoint; n++)
if (GetBit(n))
{
out_ranges->push_back((ImWchar)n);
while (n < max_codepoint && GetBit(n + 1))
n++;
out_ranges->push_back((ImWchar)n);
}
out_ranges->push_back(0);
}
//-----------------------------------------------------------------------------
// [SECTION] ImFont
//-----------------------------------------------------------------------------
ImFont::ImFont()
{
FontSize = 0.0f;
FallbackAdvanceX = 0.0f;
FallbackChar = (ImWchar)-1;
EllipsisChar = (ImWchar)-1;
EllipsisWidth = EllipsisCharStep = 0.0f;
EllipsisCharCount = 0;
FallbackGlyph = NULL;
ContainerAtlas = NULL;
ConfigData = NULL;
ConfigDataCount = 0;
DirtyLookupTables = false;
Scale = 1.0f;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
}
ImFont::~ImFont()
{
ClearOutputData();
}
void ImFont::ClearOutputData()
{
FontSize = 0.0f;
FallbackAdvanceX = 0.0f;
Glyphs.clear();
IndexAdvanceX.clear();
IndexLookup.clear();
FallbackGlyph = NULL;
ContainerAtlas = NULL;
DirtyLookupTables = true;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
}
static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count)
{
for (int n = 0; n < candidate_chars_count; n++)
if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL)
return candidate_chars[n];
return (ImWchar)-1;
}
void ImFont::BuildLookupTable()
{
int max_codepoint = 0;
for (int i = 0; i != Glyphs.Size; i++)
max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
// Build lookup table
IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
IndexAdvanceX.clear();
IndexLookup.clear();
DirtyLookupTables = false;
memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
GrowIndex(max_codepoint + 1);
for (int i = 0; i < Glyphs.Size; i++)
{
int codepoint = (int)Glyphs[i].Codepoint;
IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
IndexLookup[codepoint] = (ImWchar)i;
// Mark 4K page as used
const int page_n = codepoint / 4096;
Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
}
// Create a glyph to handle TAB
// FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
if (FindGlyph((ImWchar)' '))
{
if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
Glyphs.resize(Glyphs.Size + 1);
ImFontGlyph& tab_glyph = Glyphs.back();
tab_glyph = *FindGlyph((ImWchar)' ');
tab_glyph.Codepoint = '\t';
tab_glyph.AdvanceX *= IM_TABSIZE;
IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
}
// Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
SetGlyphVisible((ImWchar)' ', false);
SetGlyphVisible((ImWchar)'\t', false);
// Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
// However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
// FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots.
const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E };
if (EllipsisChar == (ImWchar)-1)
EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars));
const ImWchar dot_char = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars));
if (EllipsisChar != (ImWchar)-1)
{
EllipsisCharCount = 1;
EllipsisWidth = EllipsisCharStep = FindGlyph(EllipsisChar)->X1;
}
else if (dot_char != (ImWchar)-1)
{
const ImFontGlyph* glyph = FindGlyph(dot_char);
EllipsisChar = dot_char;
EllipsisCharCount = 3;
EllipsisCharStep = (glyph->X1 - glyph->X0) + 1.0f;
EllipsisWidth = EllipsisCharStep * 3.0f - 1.0f;
}
// Setup fallback character
const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' };
FallbackGlyph = FindGlyphNoFallback(FallbackChar);
if (FallbackGlyph == NULL)
{
FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars));
FallbackGlyph = FindGlyphNoFallback(FallbackChar);
if (FallbackGlyph == NULL)
{
FallbackGlyph = &Glyphs.back();
FallbackChar = (ImWchar)FallbackGlyph->Codepoint;
}
}
FallbackAdvanceX = FallbackGlyph->AdvanceX;
for (int i = 0; i < max_codepoint + 1; i++)
if (IndexAdvanceX[i] < 0.0f)
IndexAdvanceX[i] = FallbackAdvanceX;
}
// API is designed this way to avoid exposing the 4K page size
// e.g. use with IsGlyphRangeUnused(0, 255)
bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
{
unsigned int page_begin = (c_begin / 4096);
unsigned int page_last = (c_last / 4096);
for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
if ((page_n >> 3) < sizeof(Used4kPagesMap))
if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
return false;
return true;
}
void ImFont::SetGlyphVisible(ImWchar c, bool visible)
{
if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
glyph->Visible = visible ? 1 : 0;
}
void ImFont::GrowIndex(int new_size)
{
IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
if (new_size <= IndexLookup.Size)
return;
IndexAdvanceX.resize(new_size, -1.0f);
IndexLookup.resize(new_size, (ImWchar)-1);
}
// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
// Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
// 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
{
if (cfg != NULL)
{
// Clamp & recenter if needed
const float advance_x_original = advance_x;
advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
if (advance_x != advance_x_original)
{
float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
x0 += char_off_x;
x1 += char_off_x;
}
// Snap to pixel
if (cfg->PixelSnapH)
advance_x = IM_ROUND(advance_x);
// Bake spacing
advance_x += cfg->GlyphExtraSpacing.x;
}
Glyphs.resize(Glyphs.Size + 1);
ImFontGlyph& glyph = Glyphs.back();
glyph.Codepoint = (unsigned int)codepoint;
glyph.Visible = (x0 != x1) && (y0 != y1);
glyph.Colored = false;
glyph.X0 = x0;
glyph.Y0 = y0;
glyph.X1 = x1;
glyph.Y1 = y1;
glyph.U0 = u0;
glyph.V0 = v0;
glyph.U1 = u1;
glyph.V1 = v1;
glyph.AdvanceX = advance_x;
// Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
// We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
DirtyLookupTables = true;
MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
}
void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
{
IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
unsigned int index_size = (unsigned int)IndexLookup.Size;
if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
return;
if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
return;
GrowIndex(dst + 1);
IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
}
const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
{
if (c >= (size_t)IndexLookup.Size)
return FallbackGlyph;
const ImWchar i = IndexLookup.Data[c];
if (i == (ImWchar)-1)
return FallbackGlyph;
return &Glyphs.Data[i];
}
const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
{
if (c >= (size_t)IndexLookup.Size)
return NULL;
const ImWchar i = IndexLookup.Data[c];
if (i == (ImWchar)-1)
return NULL;
return &Glyphs.Data[i];
}
// Wrapping skips upcoming blanks
static inline const char* CalcWordWrapNextLineStartA(const char* text, const char* text_end)
{
while (text < text_end && ImCharIsBlankA(*text))
text++;
if (*text == '\n')
text++;
return text;
}
// Simple word-wrapping for English, not full-featured. Please submit failing cases!
// This will return the next location to wrap from. If no wrapping if necessary, this will fast-forward to e.g. text_end.
// FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
{
// For references, possible wrap point marked with ^
// "aaa bbb, ccc,ddd. eee fff. ggg!"
// ^ ^ ^ ^ ^__ ^ ^
// List of hardcoded separators: .,;!?'"
// Skip extra blanks after a line returns (that includes not counting them in width computation)
// e.g. "Hello world" --> "Hello" "World"
// Cut words that cannot possibly fit within one line.
// e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
float line_width = 0.0f;
float word_width = 0.0f;
float blank_width = 0.0f;
wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
const char* word_end = text;
const char* prev_word_end = NULL;
bool inside_word = true;
const char* s = text;
IM_ASSERT(text_end != NULL);
while (s < text_end)
{
unsigned int c = (unsigned int)*s;
const char* next_s;
if (c < 0x80)
next_s = s + 1;
else
next_s = s + ImTextCharFromUtf8(&c, s, text_end);
if (c < 32)
{
if (c == '\n')
{
line_width = word_width = blank_width = 0.0f;
inside_word = true;
s = next_s;
continue;
}
if (c == '\r')
{
s = next_s;
continue;
}
}
const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
if (ImCharIsBlankW(c))
{
if (inside_word)
{
line_width += blank_width;
blank_width = 0.0f;
word_end = s;
}
blank_width += char_width;
inside_word = false;
}
else
{
word_width += char_width;
if (inside_word)
{
word_end = next_s;
}
else
{
prev_word_end = word_end;
line_width += word_width + blank_width;
word_width = blank_width = 0.0f;
}
// Allow wrapping after punctuation.
inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
}
// We ignore blank width at the end of the line (they can be skipped)
if (line_width + word_width > wrap_width)
{
// Words that cannot possibly fit within an entire line will be cut anywhere.
if (word_width < wrap_width)
s = prev_word_end ? prev_word_end : word_end;
break;
}
s = next_s;
}
// Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
// +1 may not be a character start point in UTF-8 but it's ok because caller loops use (text >= word_wrap_eol).
if (s == text && text < text_end)
return s + 1;
return s;
}
ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
{
if (!text_end)
text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
const float line_height = size;
const float scale = size / FontSize;
ImVec2 text_size = ImVec2(0, 0);
float line_width = 0.0f;
const bool word_wrap_enabled = (wrap_width > 0.0f);
const char* word_wrap_eol = NULL;
const char* s = text_begin;
while (s < text_end)
{
if (word_wrap_enabled)
{
// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
if (!word_wrap_eol)
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
if (s >= word_wrap_eol)
{
if (text_size.x < line_width)
text_size.x = line_width;
text_size.y += line_height;
line_width = 0.0f;
word_wrap_eol = NULL;
s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks
continue;
}
}
// Decode and advance source
const char* prev_s = s;
unsigned int c = (unsigned int)*s;
if (c < 0x80)
s += 1;
else
s += ImTextCharFromUtf8(&c, s, text_end);
if (c < 32)
{
if (c == '\n')
{
text_size.x = ImMax(text_size.x, line_width);
text_size.y += line_height;
line_width = 0.0f;
continue;
}
if (c == '\r')
continue;
}
const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
if (line_width + char_width >= max_width)
{
s = prev_s;
break;
}
line_width += char_width;
}
if (text_size.x < line_width)
text_size.x = line_width;
if (line_width > 0 || text_size.y == 0.0f)
text_size.y += line_height;
if (remaining)
*remaining = s;
return text_size;
}
// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const
{
const ImFontGlyph* glyph = FindGlyph(c);
if (!glyph || !glyph->Visible)
return;
if (glyph->Colored)
col |= ~IM_COL32_A_MASK;
float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
float x = IM_FLOOR(pos.x);
float y = IM_FLOOR(pos.y);
draw_list->PrimReserve(6, 4);
draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
}
// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
{
if (!text_end)
text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
// Align to be pixel perfect
float x = IM_FLOOR(pos.x);
float y = IM_FLOOR(pos.y);
if (y > clip_rect.w)
return;
const float start_x = x;
const float scale = size / FontSize;
const float line_height = FontSize * scale;
const bool word_wrap_enabled = (wrap_width > 0.0f);
// Fast-forward to first visible line
const char* s = text_begin;
if (y + line_height < clip_rect.y)
while (y + line_height < clip_rect.y && s < text_end)
{
const char* line_end = (const char*)memchr(s, '\n', text_end - s);
if (word_wrap_enabled)
{
// FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPositionA().
// If the specs for CalcWordWrapPositionA() were reworked to optionally return on \n we could combine both.
// However it is still better than nothing performing the fast-forward!
s = CalcWordWrapPositionA(scale, s, line_end ? line_end : text_end, wrap_width);
s = CalcWordWrapNextLineStartA(s, text_end);
}
else
{
s = line_end ? line_end + 1 : text_end;
}
y += line_height;
}
// For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
// Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
if (text_end - s > 10000 && !word_wrap_enabled)
{
const char* s_end = s;
float y_end = y;
while (y_end < clip_rect.w && s_end < text_end)
{
s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
s_end = s_end ? s_end + 1 : text_end;
y_end += line_height;
}
text_end = s_end;
}
if (s == text_end)
return;
// Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
const int vtx_count_max = (int)(text_end - s) * 4;
const int idx_count_max = (int)(text_end - s) * 6;
const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
draw_list->PrimReserve(idx_count_max, vtx_count_max);
ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
unsigned int vtx_index = draw_list->_VtxCurrentIdx;
const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
const char* word_wrap_eol = NULL;
while (s < text_end)
{
if (word_wrap_enabled)
{
// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
if (!word_wrap_eol)
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - start_x));
if (s >= word_wrap_eol)
{
x = start_x;
y += line_height;
word_wrap_eol = NULL;
s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks
continue;
}
}
// Decode and advance source
unsigned int c = (unsigned int)*s;
if (c < 0x80)
s += 1;
else
s += ImTextCharFromUtf8(&c, s, text_end);
if (c < 32)
{
if (c == '\n')
{
x = start_x;
y += line_height;
if (y > clip_rect.w)
break; // break out of main loop
continue;
}
if (c == '\r')
continue;
}
const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
if (glyph == NULL)
continue;
float char_width = glyph->AdvanceX * scale;
if (glyph->Visible)
{
// We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
float x1 = x + glyph->X0 * scale;
float x2 = x + glyph->X1 * scale;
float y1 = y + glyph->Y0 * scale;
float y2 = y + glyph->Y1 * scale;
if (x1 <= clip_rect.z && x2 >= clip_rect.x)
{
// Render a character
float u1 = glyph->U0;
float v1 = glyph->V0;
float u2 = glyph->U1;
float v2 = glyph->V1;
// CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
if (cpu_fine_clip)
{
if (x1 < clip_rect.x)
{
u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
x1 = clip_rect.x;
}
if (y1 < clip_rect.y)
{
v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
y1 = clip_rect.y;
}
if (x2 > clip_rect.z)
{
u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
x2 = clip_rect.z;
}
if (y2 > clip_rect.w)
{
v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
y2 = clip_rect.w;
}
if (y1 >= y2)
{
x += char_width;
continue;
}
}
// Support for untinted glyphs
ImU32 glyph_col = glyph->Colored ? col_untinted : col;
// We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
{
vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
idx_write[0] = (ImDrawIdx)(vtx_index); idx_write[1] = (ImDrawIdx)(vtx_index + 1); idx_write[2] = (ImDrawIdx)(vtx_index + 2);
idx_write[3] = (ImDrawIdx)(vtx_index); idx_write[4] = (ImDrawIdx)(vtx_index + 2); idx_write[5] = (ImDrawIdx)(vtx_index + 3);
vtx_write += 4;
vtx_index += 4;
idx_write += 6;
}
}
}
x += char_width;
}
// Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
draw_list->_VtxWritePtr = vtx_write;
draw_list->_IdxWritePtr = idx_write;
draw_list->_VtxCurrentIdx = vtx_index;
}
//-----------------------------------------------------------------------------
// [SECTION] ImGui Internal Render Helpers
//-----------------------------------------------------------------------------
// Vaguely redesigned to stop accessing ImGui global state:
// - RenderArrow()
// - RenderBullet()
// - RenderCheckMark()
// - RenderArrowPointingAt()
// - RenderRectFilledRangeH()
// - RenderRectFilledWithHole()
//-----------------------------------------------------------------------------
// Function in need of a redesign (legacy mess)
// - RenderColorRectWithAlphaCheckerboard()
//-----------------------------------------------------------------------------
// Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
{
const float h = draw_list->_Data->FontSize * 1.00f;
float r = h * 0.40f * scale;
ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
ImVec2 a, b, c;
switch (dir)
{
case ImGuiDir_Up:
case ImGuiDir_Down:
if (dir == ImGuiDir_Up) r = -r;
a = ImVec2(+0.000f, +0.750f) * r;
b = ImVec2(-0.866f, -0.750f) * r;
c = ImVec2(+0.866f, -0.750f) * r;
break;
case ImGuiDir_Left:
case ImGuiDir_Right:
if (dir == ImGuiDir_Left) r = -r;
a = ImVec2(+0.750f, +0.000f) * r;
b = ImVec2(-0.750f, +0.866f) * r;
c = ImVec2(-0.750f, -0.866f) * r;
break;
case ImGuiDir_None:
case ImGuiDir_COUNT:
IM_ASSERT(0);
break;
}
draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
}
void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
{
draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
}
void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
{
float thickness = ImMax(sz / 5.0f, 1.0f);
sz -= thickness * 0.5f;
pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
float third = sz / 3.0f;
float bx = pos.x + third;
float by = pos.y + sz - third * 0.5f;
draw_list->PathLineTo(ImVec2(bx - third, by - third));
draw_list->PathLineTo(ImVec2(bx, by));
draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
draw_list->PathStroke(col, 0, thickness);
}
// Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
{
switch (direction)
{
case ImGuiDir_Left: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return;
case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return;
case ImGuiDir_Up: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return;
case ImGuiDir_Down: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return;
case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
}
}
static inline float ImAcos01(float x)
{
if (x <= 0.0f) return IM_PI * 0.5f;
if (x >= 1.0f) return 0.0f;
return ImAcos(x);
//return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
}
// FIXME: Cleanup and move code to ImDrawList.
void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
{
if (x_end_norm == x_start_norm)
return;
if (x_start_norm > x_end_norm)
ImSwap(x_start_norm, x_end_norm);
ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
if (rounding == 0.0f)
{
draw_list->AddRectFilled(p0, p1, col, 0.0f);
return;
}
rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
const float inv_rounding = 1.0f / rounding;
const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
const float x0 = ImMax(p0.x, rect.Min.x + rounding);
if (arc0_b == arc0_e)
{
draw_list->PathLineTo(ImVec2(x0, p1.y));
draw_list->PathLineTo(ImVec2(x0, p0.y));
}
else if (arc0_b == 0.0f && arc0_e == half_pi)
{
draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
}
else
{
draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
}
if (p1.x > rect.Min.x + rounding)
{
const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
const float x1 = ImMin(p1.x, rect.Max.x - rounding);
if (arc1_b == arc1_e)
{
draw_list->PathLineTo(ImVec2(x1, p0.y));
draw_list->PathLineTo(ImVec2(x1, p1.y));
}
else if (arc1_b == 0.0f && arc1_e == half_pi)
{
draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
}
else
{
draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
}
}
draw_list->PathFillConvex(col);
}
void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding)
{
const bool fill_L = (inner.Min.x > outer.Min.x);
const bool fill_R = (inner.Max.x < outer.Max.x);
const bool fill_U = (inner.Min.y > outer.Min.y);
const bool fill_D = (inner.Max.y < outer.Max.y);
if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft));
if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight));
if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight));
if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight));
if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopLeft);
if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopRight);
if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomLeft);
if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomRight);
}
// Helper for ColorPicker4()
// NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
// Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
// FIXME: uses ImGui::GetColorU32
void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags)
{
if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
flags = ImDrawFlags_RoundCornersDefault_;
if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
{
ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags);
int yi = 0;
for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
{
float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
if (y2 <= y1)
continue;
for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
{
float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
if (x2 <= x1)
continue;
ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone;
if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; }
if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; }
// Combine flags
cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags);
draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags);
}
}
}
else
{
draw_list->AddRectFilled(p_min, p_max, col, rounding, flags);
}
}
//-----------------------------------------------------------------------------
// [SECTION] Decompression code
//-----------------------------------------------------------------------------
// Compressed with stb_compress() then converted to a C array and encoded as base85.
// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
//-----------------------------------------------------------------------------
static unsigned int stb_decompress_length(const unsigned char *input)
{
return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
}
static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
static const unsigned char *stb__barrier_in_b;
static unsigned char *stb__dout;
static void stb__match(const unsigned char *data, unsigned int length)
{
// INVERSE of memmove... write each byte before copying the next...
IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
while (length--) *stb__dout++ = *data++;
}
static void stb__lit(const unsigned char *data, unsigned int length)
{
IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
memcpy(stb__dout, data, length);
stb__dout += length;
}
#define stb__in2(x) ((i[x] << 8) + i[(x)+1])
#define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
#define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
static const unsigned char *stb_decompress_token(const unsigned char *i)
{
if (*i >= 0x20) { // use fewer if's for cases that expand small
if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
} else { // more ifs for cases that expand large, since overhead is amortized
if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
}
return i;
}
static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
{
const unsigned long ADLER_MOD = 65521;
unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
unsigned long blocklen = buflen % 5552;
unsigned long i;
while (buflen) {
for (i=0; i + 7 < blocklen; i += 8) {
s1 += buffer[0], s2 += s1;
s1 += buffer[1], s2 += s1;
s1 += buffer[2], s2 += s1;
s1 += buffer[3], s2 += s1;
s1 += buffer[4], s2 += s1;
s1 += buffer[5], s2 += s1;
s1 += buffer[6], s2 += s1;
s1 += buffer[7], s2 += s1;
buffer += 8;
}
for (; i < blocklen; ++i)
s1 += *buffer++, s2 += s1;
s1 %= ADLER_MOD, s2 %= ADLER_MOD;
buflen -= blocklen;
blocklen = 5552;
}
return (unsigned int)(s2 << 16) + (unsigned int)s1;
}
static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
{
if (stb__in4(0) != 0x57bC0000) return 0;
if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
const unsigned int olen = stb_decompress_length(i);
stb__barrier_in_b = i;
stb__barrier_out_e = output + olen;
stb__barrier_out_b = output;
i += 16;
stb__dout = output;
for (;;) {
const unsigned char *old_i = i;
i = stb_decompress_token(i);
if (i == old_i) {
if (*i == 0x05 && i[1] == 0xfa) {
IM_ASSERT(stb__dout == output + olen);
if (stb__dout != output + olen) return 0;
if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
return 0;
return olen;
} else {
IM_ASSERT(0); /* NOTREACHED */
return 0;
}
}
IM_ASSERT(stb__dout <= output + olen);
if (stb__dout > output + olen)
return 0;
}
}
//-----------------------------------------------------------------------------
// [SECTION] Default font data (ProggyClean.ttf)
//-----------------------------------------------------------------------------
// ProggyClean.ttf
// Copyright (c) 2004, 2005 Tristan Grimmer
// MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
// Download and more information at http://upperbounds.net
//-----------------------------------------------------------------------------
// File: 'ProggyClean.ttf' (41208 bytes)
// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
//-----------------------------------------------------------------------------
static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
"7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
"2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
"`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#[email protected]<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL"
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"kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`�j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
"*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cXm#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
"tm+/Us9pG)XPu`<0s-)WTt(gCRxIg(%6sfh=ktMKn3j)<6<b5Sk_/0(^]AaN#(p/L>&VZ>1i%h1S9u5o@YaaW$e+b<TWFn/Z:Oh(Cx2$lNEoN^e)#CFY@@I;BOQ*sRwZtZxRcU7uW6CX"
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"'/###xe7q.73rI3*pP/$1>s9)W,JrM7SN]'/4C#v$U`0#V.[0>xQsH$fEmPMgY2u7Kh(G%siIfLSoS+MK2eTM$=5,M8p`A.;_R%#u[K#$x4AG8.kK/HSB==-'Ie/QTtG?-.*^N-4B/ZM"
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static const char* GetDefaultCompressedFontDataTTFBase85()
{
return proggy_clean_ttf_compressed_data_base85;
}
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/implot_items.cpp | // MIT License
// Copyright (c) 2020 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.14
#define IMGUI_DEFINE_MATH_OPERATORS
#include "implot.h"
#include "implot_internal.h"
//-----------------------------------------------------------------------------
// [SECTION] Macros and Defines
//-----------------------------------------------------------------------------
#define SQRT_1_2 0.70710678118f
#define SQRT_3_2 0.86602540378f
#ifndef IMPLOT_NO_FORCE_INLINE
#ifdef _MSC_VER
#define IMPLOT_INLINE __forceinline
#elif defined(__GNUC__)
#define IMPLOT_INLINE inline __attribute__((__always_inline__))
#elif defined(__CLANG__)
#if __has_attribute(__always_inline__)
#define IMPLOT_INLINE inline __attribute__((__always_inline__))
#else
#define IMPLOT_INLINE inline
#endif
#else
#define IMPLOT_INLINE inline
#endif
#else
#define IMPLOT_INLINE inline
#endif
#if defined __SSE__ || defined __x86_64__ || defined _M_X64
#ifndef IMGUI_ENABLE_SSE
#include <immintrin.h>
#endif
static IMPLOT_INLINE float ImInvSqrt(float x) { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); }
#else
static IMPLOT_INLINE float ImInvSqrt(float x) { return 1.0f / sqrtf(x); }
#endif
#define IMPLOT_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImInvSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)
// Support for pre-1.82 versions. Users on 1.82+ can use 0 (default) flags to mean "all corners" but in order to support older versions we are more explicit.
#if (IMGUI_VERSION_NUM < 18102) && !defined(ImDrawFlags_RoundCornersAll)
#define ImDrawFlags_RoundCornersAll ImDrawCornerFlags_All
#endif
//-----------------------------------------------------------------------------
// [SECTION] Template instantiation utility
//-----------------------------------------------------------------------------
// By default, templates are instantiated for `float`, `double`, and for the following integer types, which are defined in imgui.h:
// signed char ImS8; // 8-bit signed integer
// unsigned char ImU8; // 8-bit unsigned integer
// signed short ImS16; // 16-bit signed integer
// unsigned short ImU16; // 16-bit unsigned integer
// signed int ImS32; // 32-bit signed integer == int
// unsigned int ImU32; // 32-bit unsigned integer
// signed long long ImS64; // 64-bit signed integer
// unsigned long long ImU64; // 64-bit unsigned integer
// (note: this list does *not* include `long`, `unsigned long` and `long double`)
//
// You can customize the supported types by defining IMPLOT_CUSTOM_NUMERIC_TYPES at compile time to define your own type list.
// As an example, you could use the compile time define given by the line below in order to support only float and double.
// -DIMPLOT_CUSTOM_NUMERIC_TYPES="(float)(double)"
// In order to support all known C++ types, use:
// -DIMPLOT_CUSTOM_NUMERIC_TYPES="(signed char)(unsigned char)(signed short)(unsigned short)(signed int)(unsigned int)(signed long)(unsigned long)(signed long long)(unsigned long long)(float)(double)(long double)"
#ifdef IMPLOT_CUSTOM_NUMERIC_TYPES
#define IMPLOT_NUMERIC_TYPES IMPLOT_CUSTOM_NUMERIC_TYPES
#else
#define IMPLOT_NUMERIC_TYPES (ImS8)(ImU8)(ImS16)(ImU16)(ImS32)(ImU32)(ImS64)(ImU64)(float)(double)
#endif
// CALL_INSTANTIATE_FOR_NUMERIC_TYPES will duplicate the template instantion code `INSTANTIATE_MACRO(T)` on supported types.
#define _CAT(x, y) _CAT_(x, y)
#define _CAT_(x,y) x ## y
#define _INSTANTIATE_FOR_NUMERIC_TYPES(chain) _CAT(_INSTANTIATE_FOR_NUMERIC_TYPES_1 chain, _END)
#define _INSTANTIATE_FOR_NUMERIC_TYPES_1(T) INSTANTIATE_MACRO(T); _INSTANTIATE_FOR_NUMERIC_TYPES_2
#define _INSTANTIATE_FOR_NUMERIC_TYPES_2(T) INSTANTIATE_MACRO(T); _INSTANTIATE_FOR_NUMERIC_TYPES_1
#define _INSTANTIATE_FOR_NUMERIC_TYPES_1_END
#define _INSTANTIATE_FOR_NUMERIC_TYPES_2_END
#define CALL_INSTANTIATE_FOR_NUMERIC_TYPES() _INSTANTIATE_FOR_NUMERIC_TYPES(IMPLOT_NUMERIC_TYPES);
namespace ImPlot {
//-----------------------------------------------------------------------------
// [SECTION] Utils
//-----------------------------------------------------------------------------
// Calc maximum index size of ImDrawIdx
template <typename T>
struct MaxIdx { static const unsigned int Value; };
template <> const unsigned int MaxIdx<unsigned short>::Value = 65535;
template <> const unsigned int MaxIdx<unsigned int>::Value = 4294967295;
IMPLOT_INLINE void GetLineRenderProps(const ImDrawList& draw_list, float& half_weight, ImVec2& tex_uv0, ImVec2& tex_uv1) {
const bool aa = ImHasFlag(draw_list.Flags, ImDrawListFlags_AntiAliasedLines) &&
ImHasFlag(draw_list.Flags, ImDrawListFlags_AntiAliasedLinesUseTex);
if (aa) {
ImVec4 tex_uvs = draw_list._Data->TexUvLines[(int)(half_weight*2)];
tex_uv0 = ImVec2(tex_uvs.x, tex_uvs.y);
tex_uv1 = ImVec2(tex_uvs.z, tex_uvs.w);
half_weight += 1;
}
else {
tex_uv0 = tex_uv1 = draw_list._Data->TexUvWhitePixel;
}
}
IMPLOT_INLINE void PrimLine(ImDrawList& draw_list, const ImVec2& P1, const ImVec2& P2, float half_weight, ImU32 col, const ImVec2& tex_uv0, const ImVec2 tex_uv1) {
float dx = P2.x - P1.x;
float dy = P2.y - P1.y;
IMPLOT_NORMALIZE2F_OVER_ZERO(dx, dy);
dx *= half_weight;
dy *= half_weight;
draw_list._VtxWritePtr[0].pos.x = P1.x + dy;
draw_list._VtxWritePtr[0].pos.y = P1.y - dx;
draw_list._VtxWritePtr[0].uv = tex_uv0;
draw_list._VtxWritePtr[0].col = col;
draw_list._VtxWritePtr[1].pos.x = P2.x + dy;
draw_list._VtxWritePtr[1].pos.y = P2.y - dx;
draw_list._VtxWritePtr[1].uv = tex_uv0;
draw_list._VtxWritePtr[1].col = col;
draw_list._VtxWritePtr[2].pos.x = P2.x - dy;
draw_list._VtxWritePtr[2].pos.y = P2.y + dx;
draw_list._VtxWritePtr[2].uv = tex_uv1;
draw_list._VtxWritePtr[2].col = col;
draw_list._VtxWritePtr[3].pos.x = P1.x - dy;
draw_list._VtxWritePtr[3].pos.y = P1.y + dx;
draw_list._VtxWritePtr[3].uv = tex_uv1;
draw_list._VtxWritePtr[3].col = col;
draw_list._VtxWritePtr += 4;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[3] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[4] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[5] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr += 6;
draw_list._VtxCurrentIdx += 4;
}
IMPLOT_INLINE void PrimRectFill(ImDrawList& draw_list, const ImVec2& Pmin, const ImVec2& Pmax, ImU32 col, const ImVec2& uv) {
draw_list._VtxWritePtr[0].pos = Pmin;
draw_list._VtxWritePtr[0].uv = uv;
draw_list._VtxWritePtr[0].col = col;
draw_list._VtxWritePtr[1].pos = Pmax;
draw_list._VtxWritePtr[1].uv = uv;
draw_list._VtxWritePtr[1].col = col;
draw_list._VtxWritePtr[2].pos.x = Pmin.x;
draw_list._VtxWritePtr[2].pos.y = Pmax.y;
draw_list._VtxWritePtr[2].uv = uv;
draw_list._VtxWritePtr[2].col = col;
draw_list._VtxWritePtr[3].pos.x = Pmax.x;
draw_list._VtxWritePtr[3].pos.y = Pmin.y;
draw_list._VtxWritePtr[3].uv = uv;
draw_list._VtxWritePtr[3].col = col;
draw_list._VtxWritePtr += 4;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[3] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[4] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[5] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr += 6;
draw_list._VtxCurrentIdx += 4;
}
IMPLOT_INLINE void PrimRectLine(ImDrawList& draw_list, const ImVec2& Pmin, const ImVec2& Pmax, float weight, ImU32 col, const ImVec2& uv) {
draw_list._VtxWritePtr[0].pos.x = Pmin.x;
draw_list._VtxWritePtr[0].pos.y = Pmin.y;
draw_list._VtxWritePtr[0].uv = uv;
draw_list._VtxWritePtr[0].col = col;
draw_list._VtxWritePtr[1].pos.x = Pmin.x;
draw_list._VtxWritePtr[1].pos.y = Pmax.y;
draw_list._VtxWritePtr[1].uv = uv;
draw_list._VtxWritePtr[1].col = col;
draw_list._VtxWritePtr[2].pos.x = Pmax.x;
draw_list._VtxWritePtr[2].pos.y = Pmax.y;
draw_list._VtxWritePtr[2].uv = uv;
draw_list._VtxWritePtr[2].col = col;
draw_list._VtxWritePtr[3].pos.x = Pmax.x;
draw_list._VtxWritePtr[3].pos.y = Pmin.y;
draw_list._VtxWritePtr[3].uv = uv;
draw_list._VtxWritePtr[3].col = col;
draw_list._VtxWritePtr[4].pos.x = Pmin.x + weight;
draw_list._VtxWritePtr[4].pos.y = Pmin.y + weight;
draw_list._VtxWritePtr[4].uv = uv;
draw_list._VtxWritePtr[4].col = col;
draw_list._VtxWritePtr[5].pos.x = Pmin.x + weight;
draw_list._VtxWritePtr[5].pos.y = Pmax.y - weight;
draw_list._VtxWritePtr[5].uv = uv;
draw_list._VtxWritePtr[5].col = col;
draw_list._VtxWritePtr[6].pos.x = Pmax.x - weight;
draw_list._VtxWritePtr[6].pos.y = Pmax.y - weight;
draw_list._VtxWritePtr[6].uv = uv;
draw_list._VtxWritePtr[6].col = col;
draw_list._VtxWritePtr[7].pos.x = Pmax.x - weight;
draw_list._VtxWritePtr[7].pos.y = Pmin.y + weight;
draw_list._VtxWritePtr[7].uv = uv;
draw_list._VtxWritePtr[7].col = col;
draw_list._VtxWritePtr += 8;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 0);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 5);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 0);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 5);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 6);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 6);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 5);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 7);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 7);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 6);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 0);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 7);
draw_list._IdxWritePtr += 3;
draw_list._VtxCurrentIdx += 8;
}
//-----------------------------------------------------------------------------
// [SECTION] Item Utils
//-----------------------------------------------------------------------------
ImPlotItem* RegisterOrGetItem(const char* label_id, ImPlotItemFlags flags, bool* just_created) {
ImPlotContext& gp = *GImPlot;
ImPlotItemGroup& Items = *gp.CurrentItems;
ImGuiID id = Items.GetItemID(label_id);
if (just_created != NULL)
*just_created = Items.GetItem(id) == NULL;
ImPlotItem* item = Items.GetOrAddItem(id);
if (item->SeenThisFrame)
return item;
item->SeenThisFrame = true;
int idx = Items.GetItemIndex(item);
item->ID = id;
if (!ImHasFlag(flags, ImPlotItemFlags_NoLegend) && ImGui::FindRenderedTextEnd(label_id, NULL) != label_id) {
Items.Legend.Indices.push_back(idx);
item->NameOffset = Items.Legend.Labels.size();
Items.Legend.Labels.append(label_id, label_id + strlen(label_id) + 1);
}
else {
item->Show = true;
}
return item;
}
ImPlotItem* GetItem(const char* label_id) {
ImPlotContext& gp = *GImPlot;
return gp.CurrentItems->GetItem(label_id);
}
bool IsItemHidden(const char* label_id) {
ImPlotItem* item = GetItem(label_id);
return item != NULL && !item->Show;
}
ImPlotItem* GetCurrentItem() {
ImPlotContext& gp = *GImPlot;
return gp.CurrentItem;
}
void SetNextLineStyle(const ImVec4& col, float weight) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Colors[ImPlotCol_Line] = col;
gp.NextItemData.LineWeight = weight;
}
void SetNextFillStyle(const ImVec4& col, float alpha) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Colors[ImPlotCol_Fill] = col;
gp.NextItemData.FillAlpha = alpha;
}
void SetNextMarkerStyle(ImPlotMarker marker, float size, const ImVec4& fill, float weight, const ImVec4& outline) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Marker = marker;
gp.NextItemData.Colors[ImPlotCol_MarkerFill] = fill;
gp.NextItemData.MarkerSize = size;
gp.NextItemData.Colors[ImPlotCol_MarkerOutline] = outline;
gp.NextItemData.MarkerWeight = weight;
}
void SetNextErrorBarStyle(const ImVec4& col, float size, float weight) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Colors[ImPlotCol_ErrorBar] = col;
gp.NextItemData.ErrorBarSize = size;
gp.NextItemData.ErrorBarWeight = weight;
}
ImVec4 GetLastItemColor() {
ImPlotContext& gp = *GImPlot;
if (gp.PreviousItem)
return ImGui::ColorConvertU32ToFloat4(gp.PreviousItem->Color);
return ImVec4();
}
void BustItemCache() {
ImPlotContext& gp = *GImPlot;
for (int p = 0; p < gp.Plots.GetBufSize(); ++p) {
ImPlotPlot& plot = *gp.Plots.GetByIndex(p);
plot.Items.Reset();
}
for (int p = 0; p < gp.Subplots.GetBufSize(); ++p) {
ImPlotSubplot& subplot = *gp.Subplots.GetByIndex(p);
subplot.Items.Reset();
}
}
void BustColorCache(const char* plot_title_id) {
ImPlotContext& gp = *GImPlot;
if (plot_title_id == NULL) {
BustItemCache();
}
else {
ImGuiID id = ImGui::GetCurrentWindow()->GetID(plot_title_id);
ImPlotPlot* plot = gp.Plots.GetByKey(id);
if (plot != NULL)
plot->Items.Reset();
else {
ImPlotSubplot* subplot = gp.Subplots.GetByKey(id);
if (subplot != NULL)
subplot->Items.Reset();
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] BeginItem / EndItem
//-----------------------------------------------------------------------------
static const float ITEM_HIGHLIGHT_LINE_SCALE = 2.0f;
static const float ITEM_HIGHLIGHT_MARK_SCALE = 1.25f;
// Begins a new item. Returns false if the item should not be plotted.
bool BeginItem(const char* label_id, ImPlotItemFlags flags, ImPlotCol recolor_from) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotX() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
bool just_created;
ImPlotItem* item = RegisterOrGetItem(label_id, flags, &just_created);
// set current item
gp.CurrentItem = item;
ImPlotNextItemData& s = gp.NextItemData;
// set/override item color
if (recolor_from != -1) {
if (!IsColorAuto(s.Colors[recolor_from]))
item->Color = ImGui::ColorConvertFloat4ToU32(s.Colors[recolor_from]);
else if (!IsColorAuto(gp.Style.Colors[recolor_from]))
item->Color = ImGui::ColorConvertFloat4ToU32(gp.Style.Colors[recolor_from]);
else if (just_created)
item->Color = NextColormapColorU32();
}
else if (just_created) {
item->Color = NextColormapColorU32();
}
// hide/show item
if (gp.NextItemData.HasHidden) {
if (just_created || gp.NextItemData.HiddenCond == ImGuiCond_Always)
item->Show = !gp.NextItemData.Hidden;
}
if (!item->Show) {
// reset next item data
gp.NextItemData.Reset();
gp.PreviousItem = item;
gp.CurrentItem = NULL;
return false;
}
else {
ImVec4 item_color = ImGui::ColorConvertU32ToFloat4(item->Color);
// stage next item colors
s.Colors[ImPlotCol_Line] = IsColorAuto(s.Colors[ImPlotCol_Line]) ? ( IsColorAuto(ImPlotCol_Line) ? item_color : gp.Style.Colors[ImPlotCol_Line] ) : s.Colors[ImPlotCol_Line];
s.Colors[ImPlotCol_Fill] = IsColorAuto(s.Colors[ImPlotCol_Fill]) ? ( IsColorAuto(ImPlotCol_Fill) ? item_color : gp.Style.Colors[ImPlotCol_Fill] ) : s.Colors[ImPlotCol_Fill];
s.Colors[ImPlotCol_MarkerOutline] = IsColorAuto(s.Colors[ImPlotCol_MarkerOutline]) ? ( IsColorAuto(ImPlotCol_MarkerOutline) ? s.Colors[ImPlotCol_Line] : gp.Style.Colors[ImPlotCol_MarkerOutline] ) : s.Colors[ImPlotCol_MarkerOutline];
s.Colors[ImPlotCol_MarkerFill] = IsColorAuto(s.Colors[ImPlotCol_MarkerFill]) ? ( IsColorAuto(ImPlotCol_MarkerFill) ? s.Colors[ImPlotCol_Line] : gp.Style.Colors[ImPlotCol_MarkerFill] ) : s.Colors[ImPlotCol_MarkerFill];
s.Colors[ImPlotCol_ErrorBar] = IsColorAuto(s.Colors[ImPlotCol_ErrorBar]) ? ( GetStyleColorVec4(ImPlotCol_ErrorBar) ) : s.Colors[ImPlotCol_ErrorBar];
// stage next item style vars
s.LineWeight = s.LineWeight < 0 ? gp.Style.LineWeight : s.LineWeight;
s.Marker = s.Marker < 0 ? gp.Style.Marker : s.Marker;
s.MarkerSize = s.MarkerSize < 0 ? gp.Style.MarkerSize : s.MarkerSize;
s.MarkerWeight = s.MarkerWeight < 0 ? gp.Style.MarkerWeight : s.MarkerWeight;
s.FillAlpha = s.FillAlpha < 0 ? gp.Style.FillAlpha : s.FillAlpha;
s.ErrorBarSize = s.ErrorBarSize < 0 ? gp.Style.ErrorBarSize : s.ErrorBarSize;
s.ErrorBarWeight = s.ErrorBarWeight < 0 ? gp.Style.ErrorBarWeight : s.ErrorBarWeight;
s.DigitalBitHeight = s.DigitalBitHeight < 0 ? gp.Style.DigitalBitHeight : s.DigitalBitHeight;
s.DigitalBitGap = s.DigitalBitGap < 0 ? gp.Style.DigitalBitGap : s.DigitalBitGap;
// apply alpha modifier(s)
s.Colors[ImPlotCol_Fill].w *= s.FillAlpha;
s.Colors[ImPlotCol_MarkerFill].w *= s.FillAlpha; // TODO: this should be separate, if it at all
// apply highlight mods
if (item->LegendHovered) {
if (!ImHasFlag(gp.CurrentItems->Legend.Flags, ImPlotLegendFlags_NoHighlightItem)) {
s.LineWeight *= ITEM_HIGHLIGHT_LINE_SCALE;
s.MarkerSize *= ITEM_HIGHLIGHT_MARK_SCALE;
s.MarkerWeight *= ITEM_HIGHLIGHT_LINE_SCALE;
// TODO: how to highlight fills?
}
if (!ImHasFlag(gp.CurrentItems->Legend.Flags, ImPlotLegendFlags_NoHighlightAxis)) {
if (gp.CurrentPlot->EnabledAxesX() > 1)
gp.CurrentPlot->Axes[gp.CurrentPlot->CurrentX].ColorHiLi = item->Color;
if (gp.CurrentPlot->EnabledAxesY() > 1)
gp.CurrentPlot->Axes[gp.CurrentPlot->CurrentY].ColorHiLi = item->Color;
}
}
// set render flags
s.RenderLine = s.Colors[ImPlotCol_Line].w > 0 && s.LineWeight > 0;
s.RenderFill = s.Colors[ImPlotCol_Fill].w > 0;
s.RenderMarkerFill = s.Colors[ImPlotCol_MarkerFill].w > 0;
s.RenderMarkerLine = s.Colors[ImPlotCol_MarkerOutline].w > 0 && s.MarkerWeight > 0;
// push rendering clip rect
PushPlotClipRect();
return true;
}
}
// Ends an item (call only if BeginItem returns true)
void EndItem() {
ImPlotContext& gp = *GImPlot;
// pop rendering clip rect
PopPlotClipRect();
// reset next item data
gp.NextItemData.Reset();
// set current item
gp.PreviousItem = gp.CurrentItem;
gp.CurrentItem = NULL;
}
//-----------------------------------------------------------------------------
// [SECTION] Indexers
//-----------------------------------------------------------------------------
template <typename T>
IMPLOT_INLINE T IndexData(const T* data, int idx, int count, int offset, int stride) {
const int s = ((offset == 0) << 0) | ((stride == sizeof(T)) << 1);
switch (s) {
case 3 : return data[idx];
case 2 : return data[(offset + idx) % count];
case 1 : return *(const T*)(const void*)((const unsigned char*)data + (size_t)((idx) ) * stride);
case 0 : return *(const T*)(const void*)((const unsigned char*)data + (size_t)((offset + idx) % count) * stride);
default: return T(0);
}
}
template <typename T>
struct IndexerIdx {
IndexerIdx(const T* data, int count, int offset = 0, int stride = sizeof(T)) :
Data(data),
Count(count),
Offset(count ? ImPosMod(offset, count) : 0),
Stride(stride)
{ }
template <typename I> IMPLOT_INLINE double operator()(I idx) const {
return (double)IndexData(Data, idx, Count, Offset, Stride);
}
const T* Data;
int Count;
int Offset;
int Stride;
};
template <typename _Indexer1, typename _Indexer2>
struct IndexerAdd {
IndexerAdd(const _Indexer1& indexer1, const _Indexer2& indexer2, double scale1 = 1, double scale2 = 1)
: Indexer1(indexer1),
Indexer2(indexer2),
Scale1(scale1),
Scale2(scale2),
Count(ImMin(Indexer1.Count, Indexer2.Count))
{ }
template <typename I> IMPLOT_INLINE double operator()(I idx) const {
return Scale1 * Indexer1(idx) + Scale2 * Indexer2(idx);
}
const _Indexer1& Indexer1;
const _Indexer2& Indexer2;
double Scale1;
double Scale2;
int Count;
};
struct IndexerLin {
IndexerLin(double m, double b) : M(m), B(b) { }
template <typename I> IMPLOT_INLINE double operator()(I idx) const {
return M * idx + B;
}
const double M;
const double B;
};
struct IndexerConst {
IndexerConst(double ref) : Ref(ref) { }
template <typename I> IMPLOT_INLINE double operator()(I) const { return Ref; }
const double Ref;
};
//-----------------------------------------------------------------------------
// [SECTION] Getters
//-----------------------------------------------------------------------------
template <typename _IndexerX, typename _IndexerY>
struct GetterXY {
GetterXY(_IndexerX x, _IndexerY y, int count) : IndxerX(x), IndxerY(y), Count(count) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
return ImPlotPoint(IndxerX(idx),IndxerY(idx));
}
const _IndexerX IndxerX;
const _IndexerY IndxerY;
const int Count;
};
/// Interprets a user's function pointer as ImPlotPoints
struct GetterFuncPtr {
GetterFuncPtr(ImPlotGetter getter, void* data, int count) :
Getter(getter),
Data(data),
Count(count)
{ }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
return Getter(idx, Data);
}
ImPlotGetter Getter;
void* const Data;
const int Count;
};
template <typename _Getter>
struct GetterOverrideX {
GetterOverrideX(_Getter getter, double x) : Getter(getter), X(x), Count(getter.Count) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
ImPlotPoint p = Getter(idx);
p.x = X;
return p;
}
const _Getter Getter;
const double X;
const int Count;
};
template <typename _Getter>
struct GetterOverrideY {
GetterOverrideY(_Getter getter, double y) : Getter(getter), Y(y), Count(getter.Count) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
ImPlotPoint p = Getter(idx);
p.y = Y;
return p;
}
const _Getter Getter;
const double Y;
const int Count;
};
template <typename _Getter>
struct GetterLoop {
GetterLoop(_Getter getter) : Getter(getter), Count(getter.Count + 1) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
idx = idx % (Count - 1);
return Getter(idx);
}
const _Getter Getter;
const int Count;
};
template <typename T>
struct GetterError {
GetterError(const T* xs, const T* ys, const T* neg, const T* pos, int count, int offset, int stride) :
Xs(xs),
Ys(ys),
Neg(neg),
Pos(pos),
Count(count),
Offset(count ? ImPosMod(offset, count) : 0),
Stride(stride)
{ }
template <typename I> IMPLOT_INLINE ImPlotPointError operator()(I idx) const {
return ImPlotPointError((double)IndexData(Xs, idx, Count, Offset, Stride),
(double)IndexData(Ys, idx, Count, Offset, Stride),
(double)IndexData(Neg, idx, Count, Offset, Stride),
(double)IndexData(Pos, idx, Count, Offset, Stride));
}
const T* const Xs;
const T* const Ys;
const T* const Neg;
const T* const Pos;
const int Count;
const int Offset;
const int Stride;
};
//-----------------------------------------------------------------------------
// [SECTION] Fitters
//-----------------------------------------------------------------------------
template <typename _Getter1>
struct Fitter1 {
Fitter1(const _Getter1& getter) : Getter(getter) { }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
for (int i = 0; i < Getter.Count; ++i) {
ImPlotPoint p = Getter(i);
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
}
const _Getter1& Getter;
};
template <typename _Getter1>
struct FitterX {
FitterX(const _Getter1& getter) : Getter(getter) { }
void Fit(ImPlotAxis& x_axis, ImPlotAxis&) const {
for (int i = 0; i < Getter.Count; ++i) {
ImPlotPoint p = Getter(i);
x_axis.ExtendFit(p.x);
}
}
const _Getter1& Getter;
};
template <typename _Getter1>
struct FitterY {
FitterY(const _Getter1& getter) : Getter(getter) { }
void Fit(ImPlotAxis&, ImPlotAxis& y_axis) const {
for (int i = 0; i < Getter.Count; ++i) {
ImPlotPoint p = Getter(i);
y_axis.ExtendFit(p.y);
}
}
const _Getter1& Getter;
};
template <typename _Getter1, typename _Getter2>
struct Fitter2 {
Fitter2(const _Getter1& getter1, const _Getter2& getter2) : Getter1(getter1), Getter2(getter2) { }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
for (int i = 0; i < Getter1.Count; ++i) {
ImPlotPoint p = Getter1(i);
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
for (int i = 0; i < Getter2.Count; ++i) {
ImPlotPoint p = Getter2(i);
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
}
const _Getter1& Getter1;
const _Getter2& Getter2;
};
template <typename _Getter1, typename _Getter2>
struct FitterBarV {
FitterBarV(const _Getter1& getter1, const _Getter2& getter2, double width) :
Getter1(getter1),
Getter2(getter2),
HalfWidth(width*0.5)
{ }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
int count = ImMin(Getter1.Count, Getter2.Count);
for (int i = 0; i < count; ++i) {
ImPlotPoint p1 = Getter1(i); p1.x -= HalfWidth;
ImPlotPoint p2 = Getter2(i); p2.x += HalfWidth;
x_axis.ExtendFitWith(y_axis, p1.x, p1.y);
y_axis.ExtendFitWith(x_axis, p1.y, p1.x);
x_axis.ExtendFitWith(y_axis, p2.x, p2.y);
y_axis.ExtendFitWith(x_axis, p2.y, p2.x);
}
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const double HalfWidth;
};
template <typename _Getter1, typename _Getter2>
struct FitterBarH {
FitterBarH(const _Getter1& getter1, const _Getter2& getter2, double height) :
Getter1(getter1),
Getter2(getter2),
HalfHeight(height*0.5)
{ }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
int count = ImMin(Getter1.Count, Getter2.Count);
for (int i = 0; i < count; ++i) {
ImPlotPoint p1 = Getter1(i); p1.y -= HalfHeight;
ImPlotPoint p2 = Getter2(i); p2.y += HalfHeight;
x_axis.ExtendFitWith(y_axis, p1.x, p1.y);
y_axis.ExtendFitWith(x_axis, p1.y, p1.x);
x_axis.ExtendFitWith(y_axis, p2.x, p2.y);
y_axis.ExtendFitWith(x_axis, p2.y, p2.x);
}
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const double HalfHeight;
};
struct FitterRect {
FitterRect(const ImPlotPoint& pmin, const ImPlotPoint& pmax) :
Pmin(pmin),
Pmax(pmax)
{ }
FitterRect(const ImPlotRect& rect) :
FitterRect(rect.Min(), rect.Max())
{ }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
x_axis.ExtendFitWith(y_axis, Pmin.x, Pmin.y);
y_axis.ExtendFitWith(x_axis, Pmin.y, Pmin.x);
x_axis.ExtendFitWith(y_axis, Pmax.x, Pmax.y);
y_axis.ExtendFitWith(x_axis, Pmax.y, Pmax.x);
}
const ImPlotPoint Pmin;
const ImPlotPoint Pmax;
};
//-----------------------------------------------------------------------------
// [SECTION] Transformers
//-----------------------------------------------------------------------------
struct Transformer1 {
Transformer1(double pixMin, double pltMin, double pltMax, double m, double scaMin, double scaMax, ImPlotTransform fwd, void* data) :
ScaMin(scaMin),
ScaMax(scaMax),
PltMin(pltMin),
PltMax(pltMax),
PixMin(pixMin),
M(m),
TransformFwd(fwd),
TransformData(data)
{ }
template <typename T> IMPLOT_INLINE float operator()(T p) const {
if (TransformFwd != NULL) {
double s = TransformFwd(p, TransformData);
double t = (s - ScaMin) / (ScaMax - ScaMin);
p = PltMin + (PltMax - PltMin) * t;
}
return (float)(PixMin + M * (p - PltMin));
}
double ScaMin, ScaMax, PltMin, PltMax, PixMin, M;
ImPlotTransform TransformFwd;
void* TransformData;
};
struct Transformer2 {
Transformer2(const ImPlotAxis& x_axis, const ImPlotAxis& y_axis) :
Tx(x_axis.PixelMin,
x_axis.Range.Min,
x_axis.Range.Max,
x_axis.ScaleToPixel,
x_axis.ScaleMin,
x_axis.ScaleMax,
x_axis.TransformForward,
x_axis.TransformData),
Ty(y_axis.PixelMin,
y_axis.Range.Min,
y_axis.Range.Max,
y_axis.ScaleToPixel,
y_axis.ScaleMin,
y_axis.ScaleMax,
y_axis.TransformForward,
y_axis.TransformData)
{ }
Transformer2(const ImPlotPlot& plot) :
Transformer2(plot.Axes[plot.CurrentX], plot.Axes[plot.CurrentY])
{ }
Transformer2() :
Transformer2(*GImPlot->CurrentPlot)
{ }
template <typename P> IMPLOT_INLINE ImVec2 operator()(const P& plt) const {
ImVec2 out;
out.x = Tx(plt.x);
out.y = Ty(plt.y);
return out;
}
template <typename T> IMPLOT_INLINE ImVec2 operator()(T x, T y) const {
ImVec2 out;
out.x = Tx(x);
out.y = Ty(y);
return out;
}
Transformer1 Tx;
Transformer1 Ty;
};
//-----------------------------------------------------------------------------
// [SECTION] Renderers
//-----------------------------------------------------------------------------
struct RendererBase {
RendererBase(int prims, int idx_consumed, int vtx_consumed) :
Prims(prims),
IdxConsumed(idx_consumed),
VtxConsumed(vtx_consumed)
{ }
const int Prims;
Transformer2 Transformer;
const int IdxConsumed;
const int VtxConsumed;
};
template <class _Getter>
struct RendererLineStrip : RendererBase {
RendererLineStrip(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count - 1, 6, 4),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{
P1 = this->Transformer(Getter(0));
}
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2)))) {
P1 = P2;
return false;
}
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 P1;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter>
struct RendererLineStripSkip : RendererBase {
RendererLineStripSkip(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count - 1, 6, 4),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{
P1 = this->Transformer(Getter(0));
}
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2)))) {
if (!ImNan(P2.x) && !ImNan(P2.y))
P1 = P2;
return false;
}
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
if (!ImNan(P2.x) && !ImNan(P2.y))
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 P1;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter>
struct RendererLineSegments1 : RendererBase {
RendererLineSegments1(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count / 2, 6, 4),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{ }
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P1 = this->Transformer(Getter(prim*2+0));
ImVec2 P2 = this->Transformer(Getter(prim*2+1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2))))
return false;
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter1, class _Getter2>
struct RendererLineSegments2 : RendererBase {
RendererLineSegments2(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, float weight) :
RendererBase(ImMin(getter1.Count, getter1.Count), 6, 4),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{}
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P1 = this->Transformer(Getter1(prim));
ImVec2 P2 = this->Transformer(Getter2(prim));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2))))
return false;
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter1, class _Getter2>
struct RendererBarsFillV : RendererBase {
RendererBarsFillV(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, double width) :
RendererBase(ImMin(getter1.Count, getter1.Count), 6, 4),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfWidth(width/2)
{}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImPlotPoint p1 = Getter1(prim);
ImPlotPoint p2 = Getter2(prim);
p1.x += HalfWidth;
p2.x -= HalfWidth;
ImVec2 P1 = this->Transformer(p1);
ImVec2 P2 = this->Transformer(p2);
float width_px = ImAbs(P1.x-P2.x);
if (width_px < 1.0f) {
P1.x += P1.x > P2.x ? (1-width_px) / 2 : (width_px-1) / 2;
P2.x += P2.x > P1.x ? (1-width_px) / 2 : (width_px-1) / 2;
}
ImVec2 PMin = ImMin(P1, P2);
ImVec2 PMax = ImMax(P1, P2);
if (!cull_rect.Overlaps(ImRect(PMin, PMax)))
return false;
PrimRectFill(draw_list,PMin,PMax,Col,UV);
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
const double HalfWidth;
mutable ImVec2 UV;
};
template <class _Getter1, class _Getter2>
struct RendererBarsFillH : RendererBase {
RendererBarsFillH(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, double height) :
RendererBase(ImMin(getter1.Count, getter1.Count), 6, 4),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfHeight(height/2)
{}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImPlotPoint p1 = Getter1(prim);
ImPlotPoint p2 = Getter2(prim);
p1.y += HalfHeight;
p2.y -= HalfHeight;
ImVec2 P1 = this->Transformer(p1);
ImVec2 P2 = this->Transformer(p2);
float height_px = ImAbs(P1.y-P2.y);
if (height_px < 1.0f) {
P1.y += P1.y > P2.y ? (1-height_px) / 2 : (height_px-1) / 2;
P2.y += P2.y > P1.y ? (1-height_px) / 2 : (height_px-1) / 2;
}
ImVec2 PMin = ImMin(P1, P2);
ImVec2 PMax = ImMax(P1, P2);
if (!cull_rect.Overlaps(ImRect(PMin, PMax)))
return false;
PrimRectFill(draw_list,PMin,PMax,Col,UV);
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
const double HalfHeight;
mutable ImVec2 UV;
};
template <class _Getter1, class _Getter2>
struct RendererBarsLineV : RendererBase {
RendererBarsLineV(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, double width, float weight) :
RendererBase(ImMin(getter1.Count, getter1.Count), 24, 8),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfWidth(width/2),
Weight(weight)
{}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImPlotPoint p1 = Getter1(prim);
ImPlotPoint p2 = Getter2(prim);
p1.x += HalfWidth;
p2.x -= HalfWidth;
ImVec2 P1 = this->Transformer(p1);
ImVec2 P2 = this->Transformer(p2);
float width_px = ImAbs(P1.x-P2.x);
if (width_px < 1.0f) {
P1.x += P1.x > P2.x ? (1-width_px) / 2 : (width_px-1) / 2;
P2.x += P2.x > P1.x ? (1-width_px) / 2 : (width_px-1) / 2;
}
ImVec2 PMin = ImMin(P1, P2);
ImVec2 PMax = ImMax(P1, P2);
if (!cull_rect.Overlaps(ImRect(PMin, PMax)))
return false;
PrimRectLine(draw_list,PMin,PMax,Weight,Col,UV);
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
const double HalfWidth;
const float Weight;
mutable ImVec2 UV;
};
template <class _Getter1, class _Getter2>
struct RendererBarsLineH : RendererBase {
RendererBarsLineH(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, double height, float weight) :
RendererBase(ImMin(getter1.Count, getter1.Count), 24, 8),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfHeight(height/2),
Weight(weight)
{}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImPlotPoint p1 = Getter1(prim);
ImPlotPoint p2 = Getter2(prim);
p1.y += HalfHeight;
p2.y -= HalfHeight;
ImVec2 P1 = this->Transformer(p1);
ImVec2 P2 = this->Transformer(p2);
float height_px = ImAbs(P1.y-P2.y);
if (height_px < 1.0f) {
P1.y += P1.y > P2.y ? (1-height_px) / 2 : (height_px-1) / 2;
P2.y += P2.y > P1.y ? (1-height_px) / 2 : (height_px-1) / 2;
}
ImVec2 PMin = ImMin(P1, P2);
ImVec2 PMax = ImMax(P1, P2);
if (!cull_rect.Overlaps(ImRect(PMin, PMax)))
return false;
PrimRectLine(draw_list,PMin,PMax,Weight,Col,UV);
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
const double HalfHeight;
const float Weight;
mutable ImVec2 UV;
};
template <class _Getter>
struct RendererStairsPre : RendererBase {
RendererStairsPre(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count - 1, 12, 8),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{
P1 = this->Transformer(Getter(0));
}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2)))) {
P1 = P2;
return false;
}
PrimRectFill(draw_list, ImVec2(P1.x - HalfWeight, P1.y), ImVec2(P1.x + HalfWeight, P2.y), Col, UV);
PrimRectFill(draw_list, ImVec2(P1.x, P2.y + HalfWeight), ImVec2(P2.x, P2.y - HalfWeight), Col, UV);
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 P1;
mutable ImVec2 UV;
};
template <class _Getter>
struct RendererStairsPost : RendererBase {
RendererStairsPost(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count - 1, 12, 8),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight) * 0.5f)
{
P1 = this->Transformer(Getter(0));
}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2)))) {
P1 = P2;
return false;
}
PrimRectFill(draw_list, ImVec2(P1.x, P1.y + HalfWeight), ImVec2(P2.x, P1.y - HalfWeight), Col, UV);
PrimRectFill(draw_list, ImVec2(P2.x - HalfWeight, P2.y), ImVec2(P2.x + HalfWeight, P1.y), Col, UV);
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 P1;
mutable ImVec2 UV;
};
template <class _Getter>
struct RendererStairsPreShaded : RendererBase {
RendererStairsPreShaded(const _Getter& getter, ImU32 col) :
RendererBase(getter.Count - 1, 6, 4),
Getter(getter),
Col(col)
{
P1 = this->Transformer(Getter(0));
Y0 = this->Transformer(ImPlotPoint(0,0)).y;
}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
ImVec2 PMin(ImMin(P1.x, P2.x), ImMin(Y0, P2.y));
ImVec2 PMax(ImMax(P1.x, P2.x), ImMax(Y0, P2.y));
if (!cull_rect.Overlaps(ImRect(PMin, PMax))) {
P1 = P2;
return false;
}
PrimRectFill(draw_list, PMin, PMax, Col, UV);
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
float Y0;
mutable ImVec2 P1;
mutable ImVec2 UV;
};
template <class _Getter>
struct RendererStairsPostShaded : RendererBase {
RendererStairsPostShaded(const _Getter& getter, ImU32 col) :
RendererBase(getter.Count - 1, 6, 4),
Getter(getter),
Col(col)
{
P1 = this->Transformer(Getter(0));
Y0 = this->Transformer(ImPlotPoint(0,0)).y;
}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
ImVec2 PMin(ImMin(P1.x, P2.x), ImMin(P1.y, Y0));
ImVec2 PMax(ImMax(P1.x, P2.x), ImMax(P1.y, Y0));
if (!cull_rect.Overlaps(ImRect(PMin, PMax))) {
P1 = P2;
return false;
}
PrimRectFill(draw_list, PMin, PMax, Col, UV);
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
float Y0;
mutable ImVec2 P1;
mutable ImVec2 UV;
};
template <class _Getter1, class _Getter2>
struct RendererShaded : RendererBase {
RendererShaded(const _Getter1& getter1, const _Getter2& getter2, ImU32 col) :
RendererBase(ImMin(getter1.Count, getter2.Count) - 1, 6, 5),
Getter1(getter1),
Getter2(getter2),
Col(col)
{
P11 = this->Transformer(Getter1(0));
P12 = this->Transformer(Getter2(0));
}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P21 = this->Transformer(Getter1(prim+1));
ImVec2 P22 = this->Transformer(Getter2(prim+1));
ImRect rect(ImMin(ImMin(ImMin(P11,P12),P21),P22), ImMax(ImMax(ImMax(P11,P12),P21),P22));
if (!cull_rect.Overlaps(rect)) {
P11 = P21;
P12 = P22;
return false;
}
const int intersect = (P11.y > P12.y && P22.y > P21.y) || (P12.y > P11.y && P21.y > P22.y);
ImVec2 intersection = Intersection(P11,P21,P12,P22);
draw_list._VtxWritePtr[0].pos = P11;
draw_list._VtxWritePtr[0].uv = UV;
draw_list._VtxWritePtr[0].col = Col;
draw_list._VtxWritePtr[1].pos = P21;
draw_list._VtxWritePtr[1].uv = UV;
draw_list._VtxWritePtr[1].col = Col;
draw_list._VtxWritePtr[2].pos = intersection;
draw_list._VtxWritePtr[2].uv = UV;
draw_list._VtxWritePtr[2].col = Col;
draw_list._VtxWritePtr[3].pos = P12;
draw_list._VtxWritePtr[3].uv = UV;
draw_list._VtxWritePtr[3].col = Col;
draw_list._VtxWritePtr[4].pos = P22;
draw_list._VtxWritePtr[4].uv = UV;
draw_list._VtxWritePtr[4].col = Col;
draw_list._VtxWritePtr += 5;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1 + intersect);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[3] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[4] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr[5] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3 - intersect);
draw_list._IdxWritePtr += 6;
draw_list._VtxCurrentIdx += 5;
P11 = P21;
P12 = P22;
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
mutable ImVec2 P11;
mutable ImVec2 P12;
mutable ImVec2 UV;
};
struct RectC {
ImPlotPoint Pos;
ImPlotPoint HalfSize;
ImU32 Color;
};
template <typename _Getter>
struct RendererRectC : RendererBase {
RendererRectC(const _Getter& getter) :
RendererBase(getter.Count, 6, 4),
Getter(getter)
{}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
RectC rect = Getter(prim);
ImVec2 P1 = this->Transformer(rect.Pos.x - rect.HalfSize.x , rect.Pos.y - rect.HalfSize.y);
ImVec2 P2 = this->Transformer(rect.Pos.x + rect.HalfSize.x , rect.Pos.y + rect.HalfSize.y);
if ((rect.Color & IM_COL32_A_MASK) == 0 || !cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2))))
return false;
PrimRectFill(draw_list,P1,P2,rect.Color,UV);
return true;
}
const _Getter& Getter;
mutable ImVec2 UV;
};
//-----------------------------------------------------------------------------
// [SECTION] RenderPrimitives
//-----------------------------------------------------------------------------
/// Renders primitive shapes in bulk as efficiently as possible.
template <class _Renderer>
void RenderPrimitivesEx(const _Renderer& renderer, ImDrawList& draw_list, const ImRect& cull_rect) {
unsigned int prims = renderer.Prims;
unsigned int prims_culled = 0;
unsigned int idx = 0;
renderer.Init(draw_list);
while (prims) {
// find how many can be reserved up to end of current draw command's limit
unsigned int cnt = ImMin(prims, (MaxIdx<ImDrawIdx>::Value - draw_list._VtxCurrentIdx) / renderer.VtxConsumed);
// make sure at least this many elements can be rendered to avoid situations where at the end of buffer this slow path is not taken all the time
if (cnt >= ImMin(64u, prims)) {
if (prims_culled >= cnt)
prims_culled -= cnt; // reuse previous reservation
else {
// add more elements to previous reservation
draw_list.PrimReserve((cnt - prims_culled) * renderer.IdxConsumed, (cnt - prims_culled) * renderer.VtxConsumed);
prims_culled = 0;
}
}
else
{
if (prims_culled > 0) {
draw_list.PrimUnreserve(prims_culled * renderer.IdxConsumed, prims_culled * renderer.VtxConsumed);
prims_culled = 0;
}
cnt = ImMin(prims, (MaxIdx<ImDrawIdx>::Value - 0/*draw_list._VtxCurrentIdx*/) / renderer.VtxConsumed);
// reserve new draw command
draw_list.PrimReserve(cnt * renderer.IdxConsumed, cnt * renderer.VtxConsumed);
}
prims -= cnt;
for (unsigned int ie = idx + cnt; idx != ie; ++idx) {
if (!renderer.Render(draw_list, cull_rect, idx))
prims_culled++;
}
}
if (prims_culled > 0)
draw_list.PrimUnreserve(prims_culled * renderer.IdxConsumed, prims_culled * renderer.VtxConsumed);
}
template <template <class> class _Renderer, class _Getter, typename ...Args>
void RenderPrimitives1(const _Getter& getter, Args... args) {
ImDrawList& draw_list = *GetPlotDrawList();
const ImRect& cull_rect = GetCurrentPlot()->PlotRect;
RenderPrimitivesEx(_Renderer<_Getter>(getter,args...), draw_list, cull_rect);
}
template <template <class,class> class _Renderer, class _Getter1, class _Getter2, typename ...Args>
void RenderPrimitives2(const _Getter1& getter1, const _Getter2& getter2, Args... args) {
ImDrawList& draw_list = *GetPlotDrawList();
const ImRect& cull_rect = GetCurrentPlot()->PlotRect;
RenderPrimitivesEx(_Renderer<_Getter1,_Getter2>(getter1,getter2,args...), draw_list, cull_rect);
}
//-----------------------------------------------------------------------------
// [SECTION] Markers
//-----------------------------------------------------------------------------
template <class _Getter>
struct RendererMarkersFill : RendererBase {
RendererMarkersFill(const _Getter& getter, const ImVec2* marker, int count, float size, ImU32 col) :
RendererBase(getter.Count, (count-2)*3, count),
Getter(getter),
Marker(marker),
Count(count),
Size(size),
Col(col)
{ }
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 p = this->Transformer(Getter(prim));
if (p.x >= cull_rect.Min.x && p.y >= cull_rect.Min.y && p.x <= cull_rect.Max.x && p.y <= cull_rect.Max.y) {
for (int i = 0; i < Count; i++) {
draw_list._VtxWritePtr[0].pos.x = p.x + Marker[i].x * Size;
draw_list._VtxWritePtr[0].pos.y = p.y + Marker[i].y * Size;
draw_list._VtxWritePtr[0].uv = UV;
draw_list._VtxWritePtr[0].col = Col;
draw_list._VtxWritePtr++;
}
for (int i = 2; i < Count; i++) {
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + i - 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + i);
draw_list._IdxWritePtr += 3;
}
draw_list._VtxCurrentIdx += (ImDrawIdx)Count;
return true;
}
return false;
}
const _Getter& Getter;
const ImVec2* Marker;
const int Count;
const float Size;
const ImU32 Col;
mutable ImVec2 UV;
};
template <class _Getter>
struct RendererMarkersLine : RendererBase {
RendererMarkersLine(const _Getter& getter, const ImVec2* marker, int count, float size, float weight, ImU32 col) :
RendererBase(getter.Count, count/2*6, count/2*4),
Getter(getter),
Marker(marker),
Count(count),
HalfWeight(ImMax(1.0f,weight)*0.5f),
Size(size),
Col(col)
{ }
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 p = this->Transformer(Getter(prim));
if (p.x >= cull_rect.Min.x && p.y >= cull_rect.Min.y && p.x <= cull_rect.Max.x && p.y <= cull_rect.Max.y) {
for (int i = 0; i < Count; i = i + 2) {
ImVec2 p1(p.x + Marker[i].x * Size, p.y + Marker[i].y * Size);
ImVec2 p2(p.x + Marker[i+1].x * Size, p.y + Marker[i+1].y * Size);
PrimLine(draw_list, p1, p2, HalfWeight, Col, UV0, UV1);
}
return true;
}
return false;
}
const _Getter& Getter;
const ImVec2* Marker;
const int Count;
mutable float HalfWeight;
const float Size;
const ImU32 Col;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
static const ImVec2 MARKER_FILL_CIRCLE[10] = {ImVec2(1.0f, 0.0f), ImVec2(0.809017f, 0.58778524f),ImVec2(0.30901697f, 0.95105654f),ImVec2(-0.30901703f, 0.9510565f),ImVec2(-0.80901706f, 0.5877852f),ImVec2(-1.0f, 0.0f),ImVec2(-0.80901694f, -0.58778536f),ImVec2(-0.3090171f, -0.9510565f),ImVec2(0.30901712f, -0.9510565f),ImVec2(0.80901694f, -0.5877853f)};
static const ImVec2 MARKER_FILL_SQUARE[4] = {ImVec2(SQRT_1_2,SQRT_1_2), ImVec2(SQRT_1_2,-SQRT_1_2), ImVec2(-SQRT_1_2,-SQRT_1_2), ImVec2(-SQRT_1_2,SQRT_1_2)};
static const ImVec2 MARKER_FILL_DIAMOND[4] = {ImVec2(1, 0), ImVec2(0, -1), ImVec2(-1, 0), ImVec2(0, 1)};
static const ImVec2 MARKER_FILL_UP[3] = {ImVec2(SQRT_3_2,0.5f),ImVec2(0,-1),ImVec2(-SQRT_3_2,0.5f)};
static const ImVec2 MARKER_FILL_DOWN[3] = {ImVec2(SQRT_3_2,-0.5f),ImVec2(0,1),ImVec2(-SQRT_3_2,-0.5f)};
static const ImVec2 MARKER_FILL_LEFT[3] = {ImVec2(-1,0), ImVec2(0.5, SQRT_3_2), ImVec2(0.5, -SQRT_3_2)};
static const ImVec2 MARKER_FILL_RIGHT[3] = {ImVec2(1,0), ImVec2(-0.5, SQRT_3_2), ImVec2(-0.5, -SQRT_3_2)};
static const ImVec2 MARKER_LINE_CIRCLE[20] = {
ImVec2(1.0f, 0.0f),
ImVec2(0.809017f, 0.58778524f),
ImVec2(0.809017f, 0.58778524f),
ImVec2(0.30901697f, 0.95105654f),
ImVec2(0.30901697f, 0.95105654f),
ImVec2(-0.30901703f, 0.9510565f),
ImVec2(-0.30901703f, 0.9510565f),
ImVec2(-0.80901706f, 0.5877852f),
ImVec2(-0.80901706f, 0.5877852f),
ImVec2(-1.0f, 0.0f),
ImVec2(-1.0f, 0.0f),
ImVec2(-0.80901694f, -0.58778536f),
ImVec2(-0.80901694f, -0.58778536f),
ImVec2(-0.3090171f, -0.9510565f),
ImVec2(-0.3090171f, -0.9510565f),
ImVec2(0.30901712f, -0.9510565f),
ImVec2(0.30901712f, -0.9510565f),
ImVec2(0.80901694f, -0.5877853f),
ImVec2(0.80901694f, -0.5877853f),
ImVec2(1.0f, 0.0f)
};
static const ImVec2 MARKER_LINE_SQUARE[8] = {ImVec2(SQRT_1_2,SQRT_1_2), ImVec2(SQRT_1_2,-SQRT_1_2), ImVec2(SQRT_1_2,-SQRT_1_2), ImVec2(-SQRT_1_2,-SQRT_1_2), ImVec2(-SQRT_1_2,-SQRT_1_2), ImVec2(-SQRT_1_2,SQRT_1_2), ImVec2(-SQRT_1_2,SQRT_1_2), ImVec2(SQRT_1_2,SQRT_1_2)};
static const ImVec2 MARKER_LINE_DIAMOND[8] = {ImVec2(1, 0), ImVec2(0, -1), ImVec2(0, -1), ImVec2(-1, 0), ImVec2(-1, 0), ImVec2(0, 1), ImVec2(0, 1), ImVec2(1, 0)};
static const ImVec2 MARKER_LINE_UP[6] = {ImVec2(SQRT_3_2,0.5f), ImVec2(0,-1),ImVec2(0,-1),ImVec2(-SQRT_3_2,0.5f),ImVec2(-SQRT_3_2,0.5f),ImVec2(SQRT_3_2,0.5f)};
static const ImVec2 MARKER_LINE_DOWN[6] = {ImVec2(SQRT_3_2,-0.5f),ImVec2(0,1),ImVec2(0,1),ImVec2(-SQRT_3_2,-0.5f), ImVec2(-SQRT_3_2,-0.5f), ImVec2(SQRT_3_2,-0.5f)};
static const ImVec2 MARKER_LINE_LEFT[6] = {ImVec2(-1,0), ImVec2(0.5, SQRT_3_2), ImVec2(0.5, SQRT_3_2), ImVec2(0.5, -SQRT_3_2) , ImVec2(0.5, -SQRT_3_2) , ImVec2(-1,0) };
static const ImVec2 MARKER_LINE_RIGHT[6] = {ImVec2(1,0), ImVec2(-0.5, SQRT_3_2), ImVec2(-0.5, SQRT_3_2), ImVec2(-0.5, -SQRT_3_2), ImVec2(-0.5, -SQRT_3_2), ImVec2(1,0) };
static const ImVec2 MARKER_LINE_ASTERISK[6] = {ImVec2(-SQRT_3_2, -0.5f), ImVec2(SQRT_3_2, 0.5f), ImVec2(-SQRT_3_2, 0.5f), ImVec2(SQRT_3_2, -0.5f), ImVec2(0, -1), ImVec2(0, 1)};
static const ImVec2 MARKER_LINE_PLUS[4] = {ImVec2(-1, 0), ImVec2(1, 0), ImVec2(0, -1), ImVec2(0, 1)};
static const ImVec2 MARKER_LINE_CROSS[4] = {ImVec2(-SQRT_1_2,-SQRT_1_2),ImVec2(SQRT_1_2,SQRT_1_2),ImVec2(SQRT_1_2,-SQRT_1_2),ImVec2(-SQRT_1_2,SQRT_1_2)};
template <typename _Getter>
void RenderMarkers(const _Getter& getter, ImPlotMarker marker, float size, bool rend_fill, ImU32 col_fill, bool rend_line, ImU32 col_line, float weight) {
if (rend_fill) {
switch (marker) {
case ImPlotMarker_Circle : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_CIRCLE,10,size,col_fill); break;
case ImPlotMarker_Square : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_SQUARE, 4,size,col_fill); break;
case ImPlotMarker_Diamond : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_DIAMOND,4,size,col_fill); break;
case ImPlotMarker_Up : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_UP, 3,size,col_fill); break;
case ImPlotMarker_Down : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_DOWN, 3,size,col_fill); break;
case ImPlotMarker_Left : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_LEFT, 3,size,col_fill); break;
case ImPlotMarker_Right : RenderPrimitives1<RendererMarkersFill>(getter,MARKER_FILL_RIGHT, 3,size,col_fill); break;
}
}
if (rend_line) {
switch (marker) {
case ImPlotMarker_Circle : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_CIRCLE, 20,size,weight,col_line); break;
case ImPlotMarker_Square : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_SQUARE, 8,size,weight,col_line); break;
case ImPlotMarker_Diamond : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_DIAMOND, 8,size,weight,col_line); break;
case ImPlotMarker_Up : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_UP, 6,size,weight,col_line); break;
case ImPlotMarker_Down : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_DOWN, 6,size,weight,col_line); break;
case ImPlotMarker_Left : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_LEFT, 6,size,weight,col_line); break;
case ImPlotMarker_Right : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_RIGHT, 6,size,weight,col_line); break;
case ImPlotMarker_Asterisk : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_ASTERISK,6,size,weight,col_line); break;
case ImPlotMarker_Plus : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_PLUS, 4,size,weight,col_line); break;
case ImPlotMarker_Cross : RenderPrimitives1<RendererMarkersLine>(getter,MARKER_LINE_CROSS, 4,size,weight,col_line); break;
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] PlotLine
//-----------------------------------------------------------------------------
template <typename _Getter>
void PlotLineEx(const char* label_id, const _Getter& getter, ImPlotLineFlags flags) {
if (BeginItemEx(label_id, Fitter1<_Getter>(getter), flags, ImPlotCol_Line)) {
const ImPlotNextItemData& s = GetItemData();
if (getter.Count > 1) {
if (ImHasFlag(flags, ImPlotLineFlags_Shaded) && s.RenderFill) {
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_Fill]);
GetterOverrideY<_Getter> getter2(getter, 0);
RenderPrimitives2<RendererShaded>(getter,getter2,col_fill);
}
if (s.RenderLine) {
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
if (ImHasFlag(flags,ImPlotLineFlags_Segments)) {
RenderPrimitives1<RendererLineSegments1>(getter,col_line,s.LineWeight);
}
else if (ImHasFlag(flags, ImPlotLineFlags_Loop)) {
if (ImHasFlag(flags, ImPlotLineFlags_SkipNaN))
RenderPrimitives1<RendererLineStripSkip>(GetterLoop<_Getter>(getter),col_line,s.LineWeight);
else
RenderPrimitives1<RendererLineStrip>(GetterLoop<_Getter>(getter),col_line,s.LineWeight);
}
else {
if (ImHasFlag(flags, ImPlotLineFlags_SkipNaN))
RenderPrimitives1<RendererLineStripSkip>(getter,col_line,s.LineWeight);
else
RenderPrimitives1<RendererLineStrip>(getter,col_line,s.LineWeight);
}
}
}
// render markers
if (s.Marker != ImPlotMarker_None) {
if (ImHasFlag(flags, ImPlotLineFlags_NoClip)) {
PopPlotClipRect();
PushPlotClipRect(s.MarkerSize);
}
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerOutline]);
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerFill]);
RenderMarkers<_Getter>(getter, s.Marker, s.MarkerSize, s.RenderMarkerFill, col_fill, s.RenderMarkerLine, col_line, s.MarkerWeight);
}
EndItem();
}
}
template <typename T>
void PlotLine(const char* label_id, const T* values, int count, double xscale, double x0, ImPlotLineFlags flags, int offset, int stride) {
GetterXY<IndexerLin,IndexerIdx<T>> getter(IndexerLin(xscale,x0),IndexerIdx<T>(values,count,offset,stride),count);
PlotLineEx(label_id, getter, flags);
}
template <typename T>
void PlotLine(const char* label_id, const T* xs, const T* ys, int count, ImPlotLineFlags flags, int offset, int stride) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
PlotLineEx(label_id, getter, flags);
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotLine<T> (const char* label_id, const T* values, int count, double xscale, double x0, ImPlotLineFlags flags, int offset, int stride); \
template IMPLOT_API void PlotLine<T>(const char* label_id, const T* xs, const T* ys, int count, ImPlotLineFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
// custom
void PlotLineG(const char* label_id, ImPlotGetter getter_func, void* data, int count, ImPlotLineFlags flags) {
GetterFuncPtr getter(getter_func,data, count);
PlotLineEx(label_id, getter, flags);
}
//-----------------------------------------------------------------------------
// [SECTION] PlotScatter
//-----------------------------------------------------------------------------
template <typename Getter>
void PlotScatterEx(const char* label_id, const Getter& getter, ImPlotScatterFlags flags) {
if (BeginItemEx(label_id, Fitter1<Getter>(getter), flags, ImPlotCol_MarkerOutline)) {
const ImPlotNextItemData& s = GetItemData();
ImPlotMarker marker = s.Marker == ImPlotMarker_None ? ImPlotMarker_Circle: s.Marker;
if (marker != ImPlotMarker_None) {
if (ImHasFlag(flags,ImPlotScatterFlags_NoClip)) {
PopPlotClipRect();
PushPlotClipRect(s.MarkerSize);
}
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerOutline]);
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerFill]);
RenderMarkers<Getter>(getter, marker, s.MarkerSize, s.RenderMarkerFill, col_fill, s.RenderMarkerLine, col_line, s.MarkerWeight);
}
EndItem();
}
}
template <typename T>
void PlotScatter(const char* label_id, const T* values, int count, double xscale, double x0, ImPlotScatterFlags flags, int offset, int stride) {
GetterXY<IndexerLin,IndexerIdx<T>> getter(IndexerLin(xscale,x0),IndexerIdx<T>(values,count,offset,stride),count);
PlotScatterEx(label_id, getter, flags);
}
template <typename T>
void PlotScatter(const char* label_id, const T* xs, const T* ys, int count, ImPlotScatterFlags flags, int offset, int stride) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
return PlotScatterEx(label_id, getter, flags);
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotScatter<T>(const char* label_id, const T* values, int count, double xscale, double x0, ImPlotScatterFlags flags, int offset, int stride); \
template IMPLOT_API void PlotScatter<T>(const char* label_id, const T* xs, const T* ys, int count, ImPlotScatterFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
// custom
void PlotScatterG(const char* label_id, ImPlotGetter getter_func, void* data, int count, ImPlotScatterFlags flags) {
GetterFuncPtr getter(getter_func,data, count);
return PlotScatterEx(label_id, getter, flags);
}
//-----------------------------------------------------------------------------
// [SECTION] PlotStairs
//-----------------------------------------------------------------------------
template <typename Getter>
void PlotStairsEx(const char* label_id, const Getter& getter, ImPlotStairsFlags flags) {
if (BeginItemEx(label_id, Fitter1<Getter>(getter), flags, ImPlotCol_Line)) {
const ImPlotNextItemData& s = GetItemData();
if (getter.Count > 1 ) {
if (s.RenderFill && ImHasFlag(flags,ImPlotStairsFlags_Shaded)) {
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_Fill]);
if (ImHasFlag(flags, ImPlotStairsFlags_PreStep))
RenderPrimitives1<RendererStairsPreShaded>(getter,col_fill);
else
RenderPrimitives1<RendererStairsPostShaded>(getter,col_fill);
}
if (s.RenderLine) {
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
if (ImHasFlag(flags, ImPlotStairsFlags_PreStep))
RenderPrimitives1<RendererStairsPre>(getter,col_line,s.LineWeight);
else
RenderPrimitives1<RendererStairsPost>(getter,col_line,s.LineWeight);
}
}
// render markers
if (s.Marker != ImPlotMarker_None) {
PopPlotClipRect();
PushPlotClipRect(s.MarkerSize);
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerOutline]);
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerFill]);
RenderMarkers<Getter>(getter, s.Marker, s.MarkerSize, s.RenderMarkerFill, col_fill, s.RenderMarkerLine, col_line, s.MarkerWeight);
}
EndItem();
}
}
template <typename T>
void PlotStairs(const char* label_id, const T* values, int count, double xscale, double x0, ImPlotStairsFlags flags, int offset, int stride) {
GetterXY<IndexerLin,IndexerIdx<T>> getter(IndexerLin(xscale,x0),IndexerIdx<T>(values,count,offset,stride),count);
PlotStairsEx(label_id, getter, flags);
}
template <typename T>
void PlotStairs(const char* label_id, const T* xs, const T* ys, int count, ImPlotStairsFlags flags, int offset, int stride) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
return PlotStairsEx(label_id, getter, flags);
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotStairs<T> (const char* label_id, const T* values, int count, double xscale, double x0, ImPlotStairsFlags flags, int offset, int stride); \
template IMPLOT_API void PlotStairs<T>(const char* label_id, const T* xs, const T* ys, int count, ImPlotStairsFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
// custom
void PlotStairsG(const char* label_id, ImPlotGetter getter_func, void* data, int count, ImPlotStairsFlags flags) {
GetterFuncPtr getter(getter_func,data, count);
return PlotStairsEx(label_id, getter, flags);
}
//-----------------------------------------------------------------------------
// [SECTION] PlotShaded
//-----------------------------------------------------------------------------
template <typename Getter1, typename Getter2>
void PlotShadedEx(const char* label_id, const Getter1& getter1, const Getter2& getter2, ImPlotShadedFlags flags) {
if (BeginItemEx(label_id, Fitter2<Getter1,Getter2>(getter1,getter2), flags, ImPlotCol_Fill)) {
const ImPlotNextItemData& s = GetItemData();
if (s.RenderFill) {
const ImU32 col = ImGui::GetColorU32(s.Colors[ImPlotCol_Fill]);
RenderPrimitives2<RendererShaded>(getter1,getter2,col);
}
EndItem();
}
}
template <typename T>
void PlotShaded(const char* label_id, const T* values, int count, double y_ref, double xscale, double x0, ImPlotShadedFlags flags, int offset, int stride) {
if (!(y_ref > -DBL_MAX))
y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Min;
if (!(y_ref < DBL_MAX))
y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Max;
GetterXY<IndexerLin,IndexerIdx<T>> getter1(IndexerLin(xscale,x0),IndexerIdx<T>(values,count,offset,stride),count);
GetterXY<IndexerLin,IndexerConst> getter2(IndexerLin(xscale,x0),IndexerConst(y_ref),count);
PlotShadedEx(label_id, getter1, getter2, flags);
}
template <typename T>
void PlotShaded(const char* label_id, const T* xs, const T* ys, int count, double y_ref, ImPlotShadedFlags flags, int offset, int stride) {
if (y_ref == -HUGE_VAL)
y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Min;
if (y_ref == HUGE_VAL)
y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Max;
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter1(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
GetterXY<IndexerIdx<T>,IndexerConst> getter2(IndexerIdx<T>(xs,count,offset,stride),IndexerConst(y_ref),count);
PlotShadedEx(label_id, getter1, getter2, flags);
}
template <typename T>
void PlotShaded(const char* label_id, const T* xs, const T* ys1, const T* ys2, int count, ImPlotShadedFlags flags, int offset, int stride) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter1(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys1,count,offset,stride),count);
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter2(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys2,count,offset,stride),count);
PlotShadedEx(label_id, getter1, getter2, flags);
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotShaded<T>(const char* label_id, const T* values, int count, double y_ref, double xscale, double x0, ImPlotShadedFlags flags, int offset, int stride); \
template IMPLOT_API void PlotShaded<T>(const char* label_id, const T* xs, const T* ys, int count, double y_ref, ImPlotShadedFlags flags, int offset, int stride); \
template IMPLOT_API void PlotShaded<T>(const char* label_id, const T* xs, const T* ys1, const T* ys2, int count, ImPlotShadedFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
// custom
void PlotShadedG(const char* label_id, ImPlotGetter getter_func1, void* data1, ImPlotGetter getter_func2, void* data2, int count, ImPlotShadedFlags flags) {
GetterFuncPtr getter1(getter_func1, data1, count);
GetterFuncPtr getter2(getter_func2, data2, count);
PlotShadedEx(label_id, getter1, getter2, flags);
}
//-----------------------------------------------------------------------------
// [SECTION] PlotBars
//-----------------------------------------------------------------------------
template <typename Getter1, typename Getter2>
void PlotBarsVEx(const char* label_id, const Getter1& getter1, const Getter2 getter2, double width, ImPlotBarsFlags flags) {
if (BeginItemEx(label_id, FitterBarV<Getter1,Getter2>(getter1,getter2,width), flags, ImPlotCol_Fill)) {
const ImPlotNextItemData& s = GetItemData();
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_Fill]);
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
bool rend_fill = s.RenderFill;
bool rend_line = s.RenderLine;
if (rend_fill) {
RenderPrimitives2<RendererBarsFillV>(getter1,getter2,col_fill,width);
if (rend_line && col_fill == col_line)
rend_line = false;
}
if (rend_line) {
RenderPrimitives2<RendererBarsLineV>(getter1,getter2,col_line,width,s.LineWeight);
}
EndItem();
}
}
template <typename Getter1, typename Getter2>
void PlotBarsHEx(const char* label_id, const Getter1& getter1, const Getter2& getter2, double height, ImPlotBarsFlags flags) {
if (BeginItemEx(label_id, FitterBarH<Getter1,Getter2>(getter1,getter2,height), flags, ImPlotCol_Fill)) {
const ImPlotNextItemData& s = GetItemData();
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_Fill]);
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
bool rend_fill = s.RenderFill;
bool rend_line = s.RenderLine;
if (rend_fill) {
RenderPrimitives2<RendererBarsFillH>(getter1,getter2,col_fill,height);
if (rend_line && col_fill == col_line)
rend_line = false;
}
if (rend_line) {
RenderPrimitives2<RendererBarsLineH>(getter1,getter2,col_line,height,s.LineWeight);
}
EndItem();
}
}
template <typename T>
void PlotBars(const char* label_id, const T* values, int count, double bar_size, double shift, ImPlotBarsFlags flags, int offset, int stride) {
if (ImHasFlag(flags, ImPlotBarsFlags_Horizontal)) {
GetterXY<IndexerIdx<T>,IndexerLin> getter1(IndexerIdx<T>(values,count,offset,stride),IndexerLin(1.0,shift),count);
GetterXY<IndexerConst,IndexerLin> getter2(IndexerConst(0),IndexerLin(1.0,shift),count);
PlotBarsHEx(label_id, getter1, getter2, bar_size, flags);
}
else {
GetterXY<IndexerLin,IndexerIdx<T>> getter1(IndexerLin(1.0,shift),IndexerIdx<T>(values,count,offset,stride),count);
GetterXY<IndexerLin,IndexerConst> getter2(IndexerLin(1.0,shift),IndexerConst(0),count);
PlotBarsVEx(label_id, getter1, getter2, bar_size, flags);
}
}
template <typename T>
void PlotBars(const char* label_id, const T* xs, const T* ys, int count, double bar_size, ImPlotBarsFlags flags, int offset, int stride) {
if (ImHasFlag(flags, ImPlotBarsFlags_Horizontal)) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter1(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
GetterXY<IndexerConst, IndexerIdx<T>> getter2(IndexerConst(0),IndexerIdx<T>(ys,count,offset,stride),count);
PlotBarsHEx(label_id, getter1, getter2, bar_size, flags);
}
else {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter1(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
GetterXY<IndexerIdx<T>,IndexerConst> getter2(IndexerIdx<T>(xs,count,offset,stride),IndexerConst(0),count);
PlotBarsVEx(label_id, getter1, getter2, bar_size, flags);
}
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotBars<T>(const char* label_id, const T* values, int count, double bar_size, double shift, ImPlotBarsFlags flags, int offset, int stride); \
template IMPLOT_API void PlotBars<T>(const char* label_id, const T* xs, const T* ys, int count, double bar_size, ImPlotBarsFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
void PlotBarsG(const char* label_id, ImPlotGetter getter_func, void* data, int count, double bar_size, ImPlotBarsFlags flags) {
if (ImHasFlag(flags, ImPlotBarsFlags_Horizontal)) {
GetterFuncPtr getter1(getter_func, data, count);
GetterOverrideX<GetterFuncPtr> getter2(getter1,0);
PlotBarsHEx(label_id, getter1, getter2, bar_size, flags);
}
else {
GetterFuncPtr getter1(getter_func, data, count);
GetterOverrideY<GetterFuncPtr> getter2(getter1,0);
PlotBarsVEx(label_id, getter1, getter2, bar_size, flags);
}
}
//-----------------------------------------------------------------------------
// [SECTION] PlotBarGroups
//-----------------------------------------------------------------------------
template <typename T>
void PlotBarGroups(const char* const label_ids[], const T* values, int item_count, int group_count, double group_size, double shift, ImPlotBarGroupsFlags flags) {
const bool horz = ImHasFlag(flags, ImPlotBarGroupsFlags_Horizontal);
const bool stack = ImHasFlag(flags, ImPlotBarGroupsFlags_Stacked);
if (stack) {
SetupLock();
GImPlot->TempDouble1.resize(4*group_count);
double* temp = GImPlot->TempDouble1.Data;
double* neg = &temp[0];
double* pos = &temp[group_count];
double* curr_min = &temp[group_count*2];
double* curr_max = &temp[group_count*3];
for (int g = 0; g < group_count*2; ++g)
temp[g] = 0;
if (horz) {
for (int i = 0; i < item_count; ++i) {
if (!IsItemHidden(label_ids[i])) {
for (int g = 0; g < group_count; ++g) {
double v = (double)values[i*group_count+g];
if (v > 0) {
curr_min[g] = pos[g];
curr_max[g] = curr_min[g] + v;
pos[g] += v;
}
else {
curr_max[g] = neg[g];
curr_min[g] = curr_max[g] + v;
neg[g] += v;
}
}
}
GetterXY<IndexerIdx<double>,IndexerLin> getter1(IndexerIdx<double>(curr_min,group_count),IndexerLin(1.0,shift),group_count);
GetterXY<IndexerIdx<double>,IndexerLin> getter2(IndexerIdx<double>(curr_max,group_count),IndexerLin(1.0,shift),group_count);
PlotBarsHEx(label_ids[i],getter1,getter2,group_size,0);
}
}
else {
for (int i = 0; i < item_count; ++i) {
if (!IsItemHidden(label_ids[i])) {
for (int g = 0; g < group_count; ++g) {
double v = (double)values[i*group_count+g];
if (v > 0) {
curr_min[g] = pos[g];
curr_max[g] = curr_min[g] + v;
pos[g] += v;
}
else {
curr_max[g] = neg[g];
curr_min[g] = curr_max[g] + v;
neg[g] += v;
}
}
}
GetterXY<IndexerLin,IndexerIdx<double>> getter1(IndexerLin(1.0,shift),IndexerIdx<double>(curr_min,group_count),group_count);
GetterXY<IndexerLin,IndexerIdx<double>> getter2(IndexerLin(1.0,shift),IndexerIdx<double>(curr_max,group_count),group_count);
PlotBarsVEx(label_ids[i],getter1,getter2,group_size,0);
}
}
}
else {
const double subsize = group_size / item_count;
if (horz) {
for (int i = 0; i < item_count; ++i) {
const double subshift = (i+0.5)*subsize - group_size/2;
PlotBars(label_ids[i],&values[i*group_count],group_count,subsize,subshift+shift,ImPlotBarsFlags_Horizontal);
}
}
else {
for (int i = 0; i < item_count; ++i) {
const double subshift = (i+0.5)*subsize - group_size/2;
PlotBars(label_ids[i],&values[i*group_count],group_count,subsize,subshift+shift);
}
}
}
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API void PlotBarGroups<T>(const char* const label_ids[], const T* values, int items, int groups, double width, double shift, ImPlotBarGroupsFlags flags);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotErrorBars
//-----------------------------------------------------------------------------
template <typename _GetterPos, typename _GetterNeg>
void PlotErrorBarsVEx(const char* label_id, const _GetterPos& getter_pos, const _GetterNeg& getter_neg, ImPlotErrorBarsFlags flags) {
if (BeginItemEx(label_id, Fitter2<_GetterPos,_GetterNeg>(getter_pos, getter_neg), flags, IMPLOT_AUTO)) {
const ImPlotNextItemData& s = GetItemData();
ImDrawList& draw_list = *GetPlotDrawList();
const ImU32 col = ImGui::GetColorU32(s.Colors[ImPlotCol_ErrorBar]);
const bool rend_whisker = s.ErrorBarSize > 0;
const float half_whisker = s.ErrorBarSize * 0.5f;
for (int i = 0; i < getter_pos.Count; ++i) {
ImVec2 p1 = PlotToPixels(getter_neg(i),IMPLOT_AUTO,IMPLOT_AUTO);
ImVec2 p2 = PlotToPixels(getter_pos(i),IMPLOT_AUTO,IMPLOT_AUTO);
draw_list.AddLine(p1,p2,col, s.ErrorBarWeight);
if (rend_whisker) {
draw_list.AddLine(p1 - ImVec2(half_whisker, 0), p1 + ImVec2(half_whisker, 0), col, s.ErrorBarWeight);
draw_list.AddLine(p2 - ImVec2(half_whisker, 0), p2 + ImVec2(half_whisker, 0), col, s.ErrorBarWeight);
}
}
EndItem();
}
}
template <typename _GetterPos, typename _GetterNeg>
void PlotErrorBarsHEx(const char* label_id, const _GetterPos& getter_pos, const _GetterNeg& getter_neg, ImPlotErrorBarsFlags flags) {
if (BeginItemEx(label_id, Fitter2<_GetterPos,_GetterNeg>(getter_pos, getter_neg), flags, IMPLOT_AUTO)) {
const ImPlotNextItemData& s = GetItemData();
ImDrawList& draw_list = *GetPlotDrawList();
const ImU32 col = ImGui::GetColorU32(s.Colors[ImPlotCol_ErrorBar]);
const bool rend_whisker = s.ErrorBarSize > 0;
const float half_whisker = s.ErrorBarSize * 0.5f;
for (int i = 0; i < getter_pos.Count; ++i) {
ImVec2 p1 = PlotToPixels(getter_neg(i),IMPLOT_AUTO,IMPLOT_AUTO);
ImVec2 p2 = PlotToPixels(getter_pos(i),IMPLOT_AUTO,IMPLOT_AUTO);
draw_list.AddLine(p1, p2, col, s.ErrorBarWeight);
if (rend_whisker) {
draw_list.AddLine(p1 - ImVec2(0, half_whisker), p1 + ImVec2(0, half_whisker), col, s.ErrorBarWeight);
draw_list.AddLine(p2 - ImVec2(0, half_whisker), p2 + ImVec2(0, half_whisker), col, s.ErrorBarWeight);
}
}
EndItem();
}
}
template <typename T>
void PlotErrorBars(const char* label_id, const T* xs, const T* ys, const T* err, int count, ImPlotErrorBarsFlags flags, int offset, int stride) {
PlotErrorBars(label_id, xs, ys, err, err, count, flags, offset, stride);
}
template <typename T>
void PlotErrorBars(const char* label_id, const T* xs, const T* ys, const T* neg, const T* pos, int count, ImPlotErrorBarsFlags flags, int offset, int stride) {
IndexerIdx<T> indexer_x(xs, count,offset,stride);
IndexerIdx<T> indexer_y(ys, count,offset,stride);
IndexerIdx<T> indexer_n(neg,count,offset,stride);
IndexerIdx<T> indexer_p(pos,count,offset,stride);
GetterError<T> getter(xs, ys, neg, pos, count, offset, stride);
if (ImHasFlag(flags, ImPlotErrorBarsFlags_Horizontal)) {
IndexerAdd<IndexerIdx<T>,IndexerIdx<T>> indexer_xp(indexer_x, indexer_p, 1, 1);
IndexerAdd<IndexerIdx<T>,IndexerIdx<T>> indexer_xn(indexer_x, indexer_n, 1, -1);
GetterXY<IndexerAdd<IndexerIdx<T>,IndexerIdx<T>>,IndexerIdx<T>> getter_p(indexer_xp, indexer_y, count);
GetterXY<IndexerAdd<IndexerIdx<T>,IndexerIdx<T>>,IndexerIdx<T>> getter_n(indexer_xn, indexer_y, count);
PlotErrorBarsHEx(label_id, getter_p, getter_n, flags);
}
else {
IndexerAdd<IndexerIdx<T>,IndexerIdx<T>> indexer_yp(indexer_y, indexer_p, 1, 1);
IndexerAdd<IndexerIdx<T>,IndexerIdx<T>> indexer_yn(indexer_y, indexer_n, 1, -1);
GetterXY<IndexerIdx<T>,IndexerAdd<IndexerIdx<T>,IndexerIdx<T>>> getter_p(indexer_x, indexer_yp, count);
GetterXY<IndexerIdx<T>,IndexerAdd<IndexerIdx<T>,IndexerIdx<T>>> getter_n(indexer_x, indexer_yn, count);
PlotErrorBarsVEx(label_id, getter_p, getter_n, flags);
}
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotErrorBars<T>(const char* label_id, const T* xs, const T* ys, const T* err, int count, ImPlotErrorBarsFlags flags, int offset, int stride); \
template IMPLOT_API void PlotErrorBars<T>(const char* label_id, const T* xs, const T* ys, const T* neg, const T* pos, int count, ImPlotErrorBarsFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotStems
//-----------------------------------------------------------------------------
template <typename _GetterM, typename _GetterB>
void PlotStemsEx(const char* label_id, const _GetterM& get_mark, const _GetterB& get_base, ImPlotStemsFlags flags) {
if (BeginItemEx(label_id, Fitter2<_GetterM,_GetterB>(get_mark,get_base), flags, ImPlotCol_Line)) {
const ImPlotNextItemData& s = GetItemData();
// render stems
if (s.RenderLine) {
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
RenderPrimitives2<RendererLineSegments2>(get_mark, get_base, col_line, s.LineWeight);
}
// render markers
if (s.Marker != ImPlotMarker_None) {
PopPlotClipRect();
PushPlotClipRect(s.MarkerSize);
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerOutline]);
const ImU32 col_fill = ImGui::GetColorU32(s.Colors[ImPlotCol_MarkerFill]);
RenderMarkers<_GetterM>(get_mark, s.Marker, s.MarkerSize, s.RenderMarkerFill, col_fill, s.RenderMarkerLine, col_line, s.MarkerWeight);
}
EndItem();
}
}
template <typename T>
void PlotStems(const char* label_id, const T* values, int count, double ref, double scale, double start, ImPlotStemsFlags flags, int offset, int stride) {
if (ImHasFlag(flags, ImPlotStemsFlags_Horizontal)) {
GetterXY<IndexerIdx<T>,IndexerLin> get_mark(IndexerIdx<T>(values,count,offset,stride),IndexerLin(scale,start),count);
GetterXY<IndexerConst,IndexerLin> get_base(IndexerConst(ref),IndexerLin(scale,start),count);
PlotStemsEx(label_id, get_mark, get_base, flags);
}
else {
GetterXY<IndexerLin,IndexerIdx<T>> get_mark(IndexerLin(scale,start),IndexerIdx<T>(values,count,offset,stride),count);
GetterXY<IndexerLin,IndexerConst> get_base(IndexerLin(scale,start),IndexerConst(ref),count);
PlotStemsEx(label_id, get_mark, get_base, flags);
}
}
template <typename T>
void PlotStems(const char* label_id, const T* xs, const T* ys, int count, double ref, ImPlotStemsFlags flags, int offset, int stride) {
if (ImHasFlag(flags, ImPlotStemsFlags_Horizontal)) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> get_mark(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
GetterXY<IndexerConst,IndexerIdx<T>> get_base(IndexerConst(ref),IndexerIdx<T>(ys,count,offset,stride),count);
PlotStemsEx(label_id, get_mark, get_base, flags);
}
else {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> get_mark(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
GetterXY<IndexerIdx<T>,IndexerConst> get_base(IndexerIdx<T>(xs,count,offset,stride),IndexerConst(ref),count);
PlotStemsEx(label_id, get_mark, get_base, flags);
}
}
#define INSTANTIATE_MACRO(T) \
template IMPLOT_API void PlotStems<T>(const char* label_id, const T* values, int count, double ref, double scale, double start, ImPlotStemsFlags flags, int offset, int stride); \
template IMPLOT_API void PlotStems<T>(const char* label_id, const T* xs, const T* ys, int count, double ref, ImPlotStemsFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotInfLines
//-----------------------------------------------------------------------------
template <typename T>
void PlotInfLines(const char* label_id, const T* values, int count, ImPlotInfLinesFlags flags, int offset, int stride) {
const ImPlotRect lims = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO);
if (ImHasFlag(flags, ImPlotInfLinesFlags_Horizontal)) {
GetterXY<IndexerConst,IndexerIdx<T>> get_min(IndexerConst(lims.X.Min),IndexerIdx<T>(values,count,offset,stride),count);
GetterXY<IndexerConst,IndexerIdx<T>> get_max(IndexerConst(lims.X.Max),IndexerIdx<T>(values,count,offset,stride),count);
if (BeginItemEx(label_id, FitterY<GetterXY<IndexerConst,IndexerIdx<T>>>(get_min), flags, ImPlotCol_Line)) {
const ImPlotNextItemData& s = GetItemData();
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
if (s.RenderLine)
RenderPrimitives2<RendererLineSegments2>(get_min, get_max, col_line, s.LineWeight);
EndItem();
}
}
else {
GetterXY<IndexerIdx<T>,IndexerConst> get_min(IndexerIdx<T>(values,count,offset,stride),IndexerConst(lims.Y.Min),count);
GetterXY<IndexerIdx<T>,IndexerConst> get_max(IndexerIdx<T>(values,count,offset,stride),IndexerConst(lims.Y.Max),count);
if (BeginItemEx(label_id, FitterX<GetterXY<IndexerIdx<T>,IndexerConst>>(get_min), flags, ImPlotCol_Line)) {
const ImPlotNextItemData& s = GetItemData();
const ImU32 col_line = ImGui::GetColorU32(s.Colors[ImPlotCol_Line]);
if (s.RenderLine)
RenderPrimitives2<RendererLineSegments2>(get_min, get_max, col_line, s.LineWeight);
EndItem();
}
}
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API void PlotInfLines<T>(const char* label_id, const T* xs, int count, ImPlotInfLinesFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotPieChart
//-----------------------------------------------------------------------------
IMPLOT_INLINE void RenderPieSlice(ImDrawList& draw_list, const ImPlotPoint& center, double radius, double a0, double a1, ImU32 col) {
const float resolution = 50 / (2 * IM_PI);
ImVec2 buffer[52];
buffer[0] = PlotToPixels(center,IMPLOT_AUTO,IMPLOT_AUTO);
int n = ImMax(3, (int)((a1 - a0) * resolution));
double da = (a1 - a0) / (n - 1);
int i = 0;
for (; i < n; ++i) {
double a = a0 + i * da;
buffer[i + 1] = PlotToPixels(center.x + radius * cos(a), center.y + radius * sin(a),IMPLOT_AUTO,IMPLOT_AUTO);
}
buffer[i+1] = buffer[0];
// fill
draw_list.AddConvexPolyFilled(buffer, n + 1, col);
// border (for AA)
draw_list.AddPolyline(buffer, n + 2, col, 0, 2.0f);
}
template <typename T>
void PlotPieChart(const char* const label_ids[], const T* values, int count, double x, double y, double radius, const char* fmt, double angle0, ImPlotPieChartFlags flags) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "PlotPieChart() needs to be called between BeginPlot() and EndPlot()!");
ImDrawList & draw_list = *GetPlotDrawList();
double sum = 0;
for (int i = 0; i < count; ++i)
sum += (double)values[i];
const bool normalize = ImHasFlag(flags,ImPlotPieChartFlags_Normalize) || sum > 1.0;
ImPlotPoint center(x,y);
PushPlotClipRect();
double a0 = angle0 * 2 * IM_PI / 360.0;
double a1 = angle0 * 2 * IM_PI / 360.0;
ImPlotPoint Pmin = ImPlotPoint(x-radius,y-radius);
ImPlotPoint Pmax = ImPlotPoint(x+radius,y+radius);
for (int i = 0; i < count; ++i) {
double percent = normalize ? (double)values[i] / sum : (double)values[i];
a1 = a0 + 2 * IM_PI * percent;
if (BeginItemEx(label_ids[i], FitterRect(Pmin,Pmax))) {
ImU32 col = GetCurrentItem()->Color;
if (percent < 0.5) {
RenderPieSlice(draw_list, center, radius, a0, a1, col);
}
else {
RenderPieSlice(draw_list, center, radius, a0, a0 + (a1 - a0) * 0.5, col);
RenderPieSlice(draw_list, center, radius, a0 + (a1 - a0) * 0.5, a1, col);
}
EndItem();
}
a0 = a1;
}
if (fmt != NULL) {
a0 = angle0 * 2 * IM_PI / 360.0;
a1 = angle0 * 2 * IM_PI / 360.0;
char buffer[32];
for (int i = 0; i < count; ++i) {
ImPlotItem* item = GetItem(label_ids[i]);
double percent = normalize ? (double)values[i] / sum : (double)values[i];
a1 = a0 + 2 * IM_PI * percent;
if (item->Show) {
ImFormatString(buffer, 32, fmt, (double)values[i]);
ImVec2 size = ImGui::CalcTextSize(buffer);
double angle = a0 + (a1 - a0) * 0.5;
ImVec2 pos = PlotToPixels(center.x + 0.5 * radius * cos(angle), center.y + 0.5 * radius * sin(angle),IMPLOT_AUTO,IMPLOT_AUTO);
ImU32 col = CalcTextColor(ImGui::ColorConvertU32ToFloat4(item->Color));
draw_list.AddText(pos - size * 0.5f, col, buffer);
}
a0 = a1;
}
}
PopPlotClipRect();
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API void PlotPieChart<T>(const char* const label_ids[], const T* values, int count, double x, double y, double radius, const char* fmt, double angle0, ImPlotPieChartFlags flags);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotHeatmap
//-----------------------------------------------------------------------------
template <typename T>
struct GetterHeatmapRowMaj {
GetterHeatmapRowMaj(const T* values, int rows, int cols, double scale_min, double scale_max, double width, double height, double xref, double yref, double ydir) :
Values(values),
Count(rows*cols),
Rows(rows),
Cols(cols),
ScaleMin(scale_min),
ScaleMax(scale_max),
Width(width),
Height(height),
XRef(xref),
YRef(yref),
YDir(ydir),
HalfSize(Width*0.5, Height*0.5)
{ }
template <typename I> IMPLOT_INLINE RectC operator()(I idx) const {
double val = (double)Values[idx];
const int r = idx / Cols;
const int c = idx % Cols;
const ImPlotPoint p(XRef + HalfSize.x + c*Width, YRef + YDir * (HalfSize.y + r*Height));
RectC rect;
rect.Pos = p;
rect.HalfSize = HalfSize;
const float t = ImClamp((float)ImRemap01(val, ScaleMin, ScaleMax),0.0f,1.0f);
rect.Color = GImPlot->ColormapData.LerpTable(GImPlot->Style.Colormap, t);
return rect;
}
const T* const Values;
const int Count, Rows, Cols;
const double ScaleMin, ScaleMax, Width, Height, XRef, YRef, YDir;
const ImPlotPoint HalfSize;
};
template <typename T>
struct GetterHeatmapColMaj {
GetterHeatmapColMaj(const T* values, int rows, int cols, double scale_min, double scale_max, double width, double height, double xref, double yref, double ydir) :
Values(values),
Count(rows*cols),
Rows(rows),
Cols(cols),
ScaleMin(scale_min),
ScaleMax(scale_max),
Width(width),
Height(height),
XRef(xref),
YRef(yref),
YDir(ydir),
HalfSize(Width*0.5, Height*0.5)
{ }
template <typename I> IMPLOT_INLINE RectC operator()(I idx) const {
double val = (double)Values[idx];
const int r = idx % Cols;
const int c = idx / Cols;
const ImPlotPoint p(XRef + HalfSize.x + c*Width, YRef + YDir * (HalfSize.y + r*Height));
RectC rect;
rect.Pos = p;
rect.HalfSize = HalfSize;
const float t = ImClamp((float)ImRemap01(val, ScaleMin, ScaleMax),0.0f,1.0f);
rect.Color = GImPlot->ColormapData.LerpTable(GImPlot->Style.Colormap, t);
return rect;
}
const T* const Values;
const int Count, Rows, Cols;
const double ScaleMin, ScaleMax, Width, Height, XRef, YRef, YDir;
const ImPlotPoint HalfSize;
};
template <typename T>
void RenderHeatmap(ImDrawList& draw_list, const T* values, int rows, int cols, double scale_min, double scale_max, const char* fmt, const ImPlotPoint& bounds_min, const ImPlotPoint& bounds_max, bool reverse_y, bool col_maj) {
ImPlotContext& gp = *GImPlot;
Transformer2 transformer;
if (scale_min == 0 && scale_max == 0) {
T temp_min, temp_max;
ImMinMaxArray(values,rows*cols,&temp_min,&temp_max);
scale_min = (double)temp_min;
scale_max = (double)temp_max;
}
if (scale_min == scale_max) {
ImVec2 a = transformer(bounds_min);
ImVec2 b = transformer(bounds_max);
ImU32 col = GetColormapColorU32(0,gp.Style.Colormap);
draw_list.AddRectFilled(a, b, col);
return;
}
const double yref = reverse_y ? bounds_max.y : bounds_min.y;
const double ydir = reverse_y ? -1 : 1;
if (col_maj) {
GetterHeatmapColMaj<T> getter(values, rows, cols, scale_min, scale_max, (bounds_max.x - bounds_min.x) / cols, (bounds_max.y - bounds_min.y) / rows, bounds_min.x, yref, ydir);
RenderPrimitives1<RendererRectC>(getter);
}
else {
GetterHeatmapRowMaj<T> getter(values, rows, cols, scale_min, scale_max, (bounds_max.x - bounds_min.x) / cols, (bounds_max.y - bounds_min.y) / rows, bounds_min.x, yref, ydir);
RenderPrimitives1<RendererRectC>(getter);
}
// labels
if (fmt != NULL) {
const double w = (bounds_max.x - bounds_min.x) / cols;
const double h = (bounds_max.y - bounds_min.y) / rows;
const ImPlotPoint half_size(w*0.5,h*0.5);
int i = 0;
if (col_maj) {
for (int c = 0; c < cols; ++c) {
for (int r = 0; r < rows; ++r) {
ImPlotPoint p;
p.x = bounds_min.x + 0.5*w + c*w;
p.y = yref + ydir * (0.5*h + r*h);
ImVec2 px = transformer(p);
char buff[32];
ImFormatString(buff, 32, fmt, values[i]);
ImVec2 size = ImGui::CalcTextSize(buff);
double t = ImClamp(ImRemap01((double)values[i], scale_min, scale_max),0.0,1.0);
ImVec4 color = SampleColormap((float)t);
ImU32 col = CalcTextColor(color);
draw_list.AddText(px - size * 0.5f, col, buff);
i++;
}
}
}
else {
for (int r = 0; r < rows; ++r) {
for (int c = 0; c < cols; ++c) {
ImPlotPoint p;
p.x = bounds_min.x + 0.5*w + c*w;
p.y = yref + ydir * (0.5*h + r*h);
ImVec2 px = transformer(p);
char buff[32];
ImFormatString(buff, 32, fmt, values[i]);
ImVec2 size = ImGui::CalcTextSize(buff);
double t = ImClamp(ImRemap01((double)values[i], scale_min, scale_max),0.0,1.0);
ImVec4 color = SampleColormap((float)t);
ImU32 col = CalcTextColor(color);
draw_list.AddText(px - size * 0.5f, col, buff);
i++;
}
}
}
}
}
template <typename T>
void PlotHeatmap(const char* label_id, const T* values, int rows, int cols, double scale_min, double scale_max, const char* fmt, const ImPlotPoint& bounds_min, const ImPlotPoint& bounds_max, ImPlotHeatmapFlags flags) {
if (BeginItemEx(label_id, FitterRect(bounds_min, bounds_max))) {
ImDrawList& draw_list = *GetPlotDrawList();
const bool col_maj = ImHasFlag(flags, ImPlotHeatmapFlags_ColMajor);
RenderHeatmap(draw_list, values, rows, cols, scale_min, scale_max, fmt, bounds_min, bounds_max, true, col_maj);
EndItem();
}
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API void PlotHeatmap<T>(const char* label_id, const T* values, int rows, int cols, double scale_min, double scale_max, const char* fmt, const ImPlotPoint& bounds_min, const ImPlotPoint& bounds_max, ImPlotHeatmapFlags flags);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotHistogram
//-----------------------------------------------------------------------------
template <typename T>
double PlotHistogram(const char* label_id, const T* values, int count, int bins, double bar_scale, ImPlotRange range, ImPlotHistogramFlags flags) {
const bool cumulative = ImHasFlag(flags, ImPlotHistogramFlags_Cumulative);
const bool density = ImHasFlag(flags, ImPlotHistogramFlags_Density);
const bool outliers = !ImHasFlag(flags, ImPlotHistogramFlags_NoOutliers);
if (count <= 0 || bins == 0)
return 0;
if (range.Min == 0 && range.Max == 0) {
T Min, Max;
ImMinMaxArray(values, count, &Min, &Max);
range.Min = (double)Min;
range.Max = (double)Max;
}
double width;
if (bins < 0)
CalculateBins(values, count, bins, range, bins, width);
else
width = range.Size() / bins;
ImVector<double>& bin_centers = GImPlot->TempDouble1;
ImVector<double>& bin_counts = GImPlot->TempDouble2;
bin_centers.resize(bins);
bin_counts.resize(bins);
int below = 0;
for (int b = 0; b < bins; ++b) {
bin_centers[b] = range.Min + b * width + width * 0.5;
bin_counts[b] = 0;
}
int counted = 0;
double max_count = 0;
for (int i = 0; i < count; ++i) {
double val = (double)values[i];
if (range.Contains(val)) {
const int b = ImClamp((int)((val - range.Min) / width), 0, bins - 1);
bin_counts[b] += 1.0;
if (bin_counts[b] > max_count)
max_count = bin_counts[b];
counted++;
}
else if (val < range.Min) {
below++;
}
}
if (cumulative && density) {
if (outliers)
bin_counts[0] += below;
for (int b = 1; b < bins; ++b)
bin_counts[b] += bin_counts[b-1];
double scale = 1.0 / (outliers ? count : counted);
for (int b = 0; b < bins; ++b)
bin_counts[b] *= scale;
max_count = bin_counts[bins-1];
}
else if (cumulative) {
if (outliers)
bin_counts[0] += below;
for (int b = 1; b < bins; ++b)
bin_counts[b] += bin_counts[b-1];
max_count = bin_counts[bins-1];
}
else if (density) {
double scale = 1.0 / ((outliers ? count : counted) * width);
for (int b = 0; b < bins; ++b)
bin_counts[b] *= scale;
max_count *= scale;
}
if (ImHasFlag(flags, ImPlotHistogramFlags_Horizontal))
PlotBars(label_id, &bin_counts.Data[0], &bin_centers.Data[0], bins, bar_scale*width, ImPlotBarsFlags_Horizontal);
else
PlotBars(label_id, &bin_centers.Data[0], &bin_counts.Data[0], bins, bar_scale*width);
return max_count;
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API double PlotHistogram<T>(const char* label_id, const T* values, int count, int bins, double bar_scale, ImPlotRange range, ImPlotHistogramFlags flags);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotHistogram2D
//-----------------------------------------------------------------------------
template <typename T>
double PlotHistogram2D(const char* label_id, const T* xs, const T* ys, int count, int x_bins, int y_bins, ImPlotRect range, ImPlotHistogramFlags flags) {
// const bool cumulative = ImHasFlag(flags, ImPlotHistogramFlags_Cumulative); NOT SUPPORTED
const bool density = ImHasFlag(flags, ImPlotHistogramFlags_Density);
const bool outliers = !ImHasFlag(flags, ImPlotHistogramFlags_NoOutliers);
const bool col_maj = ImHasFlag(flags, ImPlotHistogramFlags_ColMajor);
if (count <= 0 || x_bins == 0 || y_bins == 0)
return 0;
if (range.X.Min == 0 && range.X.Max == 0) {
T Min, Max;
ImMinMaxArray(xs, count, &Min, &Max);
range.X.Min = (double)Min;
range.X.Max = (double)Max;
}
if (range.Y.Min == 0 && range.Y.Max == 0) {
T Min, Max;
ImMinMaxArray(ys, count, &Min, &Max);
range.Y.Min = (double)Min;
range.Y.Max = (double)Max;
}
double width, height;
if (x_bins < 0)
CalculateBins(xs, count, x_bins, range.X, x_bins, width);
else
width = range.X.Size() / x_bins;
if (y_bins < 0)
CalculateBins(ys, count, y_bins, range.Y, y_bins, height);
else
height = range.Y.Size() / y_bins;
const int bins = x_bins * y_bins;
ImVector<double>& bin_counts = GImPlot->TempDouble1;
bin_counts.resize(bins);
for (int b = 0; b < bins; ++b)
bin_counts[b] = 0;
int counted = 0;
double max_count = 0;
for (int i = 0; i < count; ++i) {
if (range.Contains((double)xs[i], (double)ys[i])) {
const int xb = ImClamp( (int)((double)(xs[i] - range.X.Min) / width) , 0, x_bins - 1);
const int yb = ImClamp( (int)((double)(ys[i] - range.Y.Min) / height) , 0, y_bins - 1);
const int b = yb * x_bins + xb;
bin_counts[b] += 1.0;
if (bin_counts[b] > max_count)
max_count = bin_counts[b];
counted++;
}
}
if (density) {
double scale = 1.0 / ((outliers ? count : counted) * width * height);
for (int b = 0; b < bins; ++b)
bin_counts[b] *= scale;
max_count *= scale;
}
if (BeginItemEx(label_id, FitterRect(range))) {
ImDrawList& draw_list = *GetPlotDrawList();
RenderHeatmap(draw_list, &bin_counts.Data[0], y_bins, x_bins, 0, max_count, NULL, range.Min(), range.Max(), false, col_maj);
EndItem();
}
return max_count;
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API double PlotHistogram2D<T>(const char* label_id, const T* xs, const T* ys, int count, int x_bins, int y_bins, ImPlotRect range, ImPlotHistogramFlags flags);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
//-----------------------------------------------------------------------------
// [SECTION] PlotDigital
//-----------------------------------------------------------------------------
// TODO: Make this behave like all the other plot types (.e. not fixed in y axis)
template <typename Getter>
void PlotDigitalEx(const char* label_id, Getter getter, ImPlotDigitalFlags flags) {
if (BeginItem(label_id, flags, ImPlotCol_Fill)) {
ImPlotContext& gp = *GImPlot;
ImDrawList& draw_list = *GetPlotDrawList();
const ImPlotNextItemData& s = GetItemData();
if (getter.Count > 1 && s.RenderFill) {
ImPlotPlot& plot = *gp.CurrentPlot;
ImPlotAxis& x_axis = plot.Axes[plot.CurrentX];
ImPlotAxis& y_axis = plot.Axes[plot.CurrentY];
int pixYMax = 0;
ImPlotPoint itemData1 = getter(0);
for (int i = 0; i < getter.Count; ++i) {
ImPlotPoint itemData2 = getter(i);
if (ImNanOrInf(itemData1.y)) {
itemData1 = itemData2;
continue;
}
if (ImNanOrInf(itemData2.y)) itemData2.y = ImConstrainNan(ImConstrainInf(itemData2.y));
int pixY_0 = (int)(s.LineWeight);
itemData1.y = ImMax(0.0, itemData1.y);
float pixY_1_float = s.DigitalBitHeight * (float)itemData1.y;
int pixY_1 = (int)(pixY_1_float); //allow only positive values
int pixY_chPosOffset = (int)(ImMax(s.DigitalBitHeight, pixY_1_float) + s.DigitalBitGap);
pixYMax = ImMax(pixYMax, pixY_chPosOffset);
ImVec2 pMin = PlotToPixels(itemData1,IMPLOT_AUTO,IMPLOT_AUTO);
ImVec2 pMax = PlotToPixels(itemData2,IMPLOT_AUTO,IMPLOT_AUTO);
int pixY_Offset = 0; //20 pixel from bottom due to mouse cursor label
pMin.y = (y_axis.PixelMin) + ((-gp.DigitalPlotOffset) - pixY_Offset);
pMax.y = (y_axis.PixelMin) + ((-gp.DigitalPlotOffset) - pixY_0 - pixY_1 - pixY_Offset);
//plot only one rectangle for same digital state
while (((i+2) < getter.Count) && (itemData1.y == itemData2.y)) {
const int in = (i + 1);
itemData2 = getter(in);
if (ImNanOrInf(itemData2.y)) break;
pMax.x = PlotToPixels(itemData2,IMPLOT_AUTO,IMPLOT_AUTO).x;
i++;
}
//do not extend plot outside plot range
if (pMin.x < x_axis.PixelMin) pMin.x = x_axis.PixelMin;
if (pMax.x < x_axis.PixelMin) pMax.x = x_axis.PixelMin;
if (pMin.x > x_axis.PixelMax) pMin.x = x_axis.PixelMax;
if (pMax.x > x_axis.PixelMax) pMax.x = x_axis.PixelMax;
//plot a rectangle that extends up to x2 with y1 height
if ((pMax.x > pMin.x) && (gp.CurrentPlot->PlotRect.Contains(pMin) || gp.CurrentPlot->PlotRect.Contains(pMax))) {
// ImVec4 colAlpha = item->Color;
// colAlpha.w = item->Highlight ? 1.0f : 0.9f;
draw_list.AddRectFilled(pMin, pMax, ImGui::GetColorU32(s.Colors[ImPlotCol_Fill]));
}
itemData1 = itemData2;
}
gp.DigitalPlotItemCnt++;
gp.DigitalPlotOffset += pixYMax;
}
EndItem();
}
}
template <typename T>
void PlotDigital(const char* label_id, const T* xs, const T* ys, int count, ImPlotDigitalFlags flags, int offset, int stride) {
GetterXY<IndexerIdx<T>,IndexerIdx<T>> getter(IndexerIdx<T>(xs,count,offset,stride),IndexerIdx<T>(ys,count,offset,stride),count);
return PlotDigitalEx(label_id, getter, flags);
}
#define INSTANTIATE_MACRO(T) template IMPLOT_API void PlotDigital<T>(const char* label_id, const T* xs, const T* ys, int count, ImPlotDigitalFlags flags, int offset, int stride);
CALL_INSTANTIATE_FOR_NUMERIC_TYPES()
#undef INSTANTIATE_MACRO
// custom
void PlotDigitalG(const char* label_id, ImPlotGetter getter_func, void* data, int count, ImPlotDigitalFlags flags) {
GetterFuncPtr getter(getter_func,data,count);
return PlotDigitalEx(label_id, getter, flags);
}
//-----------------------------------------------------------------------------
// [SECTION] PlotImage
//-----------------------------------------------------------------------------
void PlotImage(const char* label_id, ImTextureID user_texture_id, const ImPlotPoint& bmin, const ImPlotPoint& bmax, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& tint_col, ImPlotImageFlags) {
if (BeginItemEx(label_id, FitterRect(bmin,bmax))) {
ImU32 tint_col32 = ImGui::ColorConvertFloat4ToU32(tint_col);
GetCurrentItem()->Color = tint_col32;
ImDrawList& draw_list = *GetPlotDrawList();
ImVec2 p1 = PlotToPixels(bmin.x, bmax.y,IMPLOT_AUTO,IMPLOT_AUTO);
ImVec2 p2 = PlotToPixels(bmax.x, bmin.y,IMPLOT_AUTO,IMPLOT_AUTO);
PushPlotClipRect();
draw_list.AddImage(user_texture_id, p1, p2, uv0, uv1, tint_col32);
PopPlotClipRect();
EndItem();
}
}
//-----------------------------------------------------------------------------
// [SECTION] PlotText
//-----------------------------------------------------------------------------
void PlotText(const char* text, double x, double y, const ImVec2& pixel_offset, ImPlotTextFlags flags) {
IM_ASSERT_USER_ERROR(GImPlot->CurrentPlot != NULL, "PlotText() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
ImDrawList & draw_list = *GetPlotDrawList();
PushPlotClipRect();
ImU32 colTxt = GetStyleColorU32(ImPlotCol_InlayText);
if (ImHasFlag(flags,ImPlotTextFlags_Vertical)) {
ImVec2 siz = CalcTextSizeVertical(text) * 0.5f;
ImVec2 ctr = siz * 0.5f;
ImVec2 pos = PlotToPixels(ImPlotPoint(x,y),IMPLOT_AUTO,IMPLOT_AUTO) + ImVec2(-ctr.x, ctr.y) + pixel_offset;
if (FitThisFrame() && !ImHasFlag(flags, ImPlotItemFlags_NoFit)) {
FitPoint(PixelsToPlot(pos));
FitPoint(PixelsToPlot(pos.x + siz.x, pos.y - siz.y));
}
AddTextVertical(&draw_list, pos, colTxt, text);
}
else {
ImVec2 siz = ImGui::CalcTextSize(text);
ImVec2 pos = PlotToPixels(ImPlotPoint(x,y),IMPLOT_AUTO,IMPLOT_AUTO) - siz * 0.5f + pixel_offset;
if (FitThisFrame() && !ImHasFlag(flags, ImPlotItemFlags_NoFit)) {
FitPoint(PixelsToPlot(pos));
FitPoint(PixelsToPlot(pos+siz));
}
draw_list.AddText(pos, colTxt, text);
}
PopPlotClipRect();
}
//-----------------------------------------------------------------------------
// [SECTION] PlotDummy
//-----------------------------------------------------------------------------
void PlotDummy(const char* label_id, ImPlotDummyFlags flags) {
if (BeginItem(label_id, flags, ImPlotCol_Line))
EndItem();
}
} // namespace ImPlot
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui_widgets.cpp | // dear imgui, v1.89.4
// (widgets code)
/*
Index of this file:
// [SECTION] Forward Declarations
// [SECTION] Widgets: Text, etc.
// [SECTION] Widgets: Main (Button, Image, Checkbox, RadioButton, ProgressBar, Bullet, etc.)
// [SECTION] Widgets: Low-level Layout helpers (Spacing, Dummy, NewLine, Separator, etc.)
// [SECTION] Widgets: ComboBox
// [SECTION] Data Type and Data Formatting Helpers
// [SECTION] Widgets: DragScalar, DragFloat, DragInt, etc.
// [SECTION] Widgets: SliderScalar, SliderFloat, SliderInt, etc.
// [SECTION] Widgets: InputScalar, InputFloat, InputInt, etc.
// [SECTION] Widgets: InputText, InputTextMultiline
// [SECTION] Widgets: ColorEdit, ColorPicker, ColorButton, etc.
// [SECTION] Widgets: TreeNode, CollapsingHeader, etc.
// [SECTION] Widgets: Selectable
// [SECTION] Widgets: ListBox
// [SECTION] Widgets: PlotLines, PlotHistogram
// [SECTION] Widgets: Value helpers
// [SECTION] Widgets: MenuItem, BeginMenu, EndMenu, etc.
// [SECTION] Widgets: BeginTabBar, EndTabBar, etc.
// [SECTION] Widgets: BeginTabItem, EndTabItem, etc.
// [SECTION] Widgets: Columns, BeginColumns, EndColumns, etc.
*/
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_internal.h"
// System includes
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
//-------------------------------------------------------------------------
// Warnings
//-------------------------------------------------------------------------
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
#pragma warning (disable: 5054) // operator '|': deprecated between enumerations of different types
#endif
#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
#pragma clang diagnostic ignored "-Wformat-nonliteral" // warning: format string is not a string literal // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
#pragma clang diagnostic ignored "-Wenum-enum-conversion" // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_')
#pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wformat-nonliteral" // warning: format not a string literal, format string not checked
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#pragma GCC diagnostic ignored "-Wdeprecated-enum-enum-conversion" // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
#endif
//-------------------------------------------------------------------------
// Data
//-------------------------------------------------------------------------
// Widgets
static const float DRAGDROP_HOLD_TO_OPEN_TIMER = 0.70f; // Time for drag-hold to activate items accepting the ImGuiButtonFlags_PressedOnDragDropHold button behavior.
static const float DRAG_MOUSE_THRESHOLD_FACTOR = 0.50f; // Multiplier for the default value of io.MouseDragThreshold to make DragFloat/DragInt react faster to mouse drags.
// Those MIN/MAX values are not define because we need to point to them
static const signed char IM_S8_MIN = -128;
static const signed char IM_S8_MAX = 127;
static const unsigned char IM_U8_MIN = 0;
static const unsigned char IM_U8_MAX = 0xFF;
static const signed short IM_S16_MIN = -32768;
static const signed short IM_S16_MAX = 32767;
static const unsigned short IM_U16_MIN = 0;
static const unsigned short IM_U16_MAX = 0xFFFF;
static const ImS32 IM_S32_MIN = INT_MIN; // (-2147483647 - 1), (0x80000000);
static const ImS32 IM_S32_MAX = INT_MAX; // (2147483647), (0x7FFFFFFF)
static const ImU32 IM_U32_MIN = 0;
static const ImU32 IM_U32_MAX = UINT_MAX; // (0xFFFFFFFF)
#ifdef LLONG_MIN
static const ImS64 IM_S64_MIN = LLONG_MIN; // (-9223372036854775807ll - 1ll);
static const ImS64 IM_S64_MAX = LLONG_MAX; // (9223372036854775807ll);
#else
static const ImS64 IM_S64_MIN = -9223372036854775807LL - 1;
static const ImS64 IM_S64_MAX = 9223372036854775807LL;
#endif
static const ImU64 IM_U64_MIN = 0;
#ifdef ULLONG_MAX
static const ImU64 IM_U64_MAX = ULLONG_MAX; // (0xFFFFFFFFFFFFFFFFull);
#else
static const ImU64 IM_U64_MAX = (2ULL * 9223372036854775807LL + 1);
#endif
//-------------------------------------------------------------------------
// [SECTION] Forward Declarations
//-------------------------------------------------------------------------
// For InputTextEx()
static bool InputTextFilterCharacter(unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, ImGuiInputSource input_source);
static int InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end);
static ImVec2 InputTextCalcTextSizeW(ImGuiContext* ctx, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false);
//-------------------------------------------------------------------------
// [SECTION] Widgets: Text, etc.
//-------------------------------------------------------------------------
// - TextEx() [Internal]
// - TextUnformatted()
// - Text()
// - TextV()
// - TextColored()
// - TextColoredV()
// - TextDisabled()
// - TextDisabledV()
// - TextWrapped()
// - TextWrappedV()
// - LabelText()
// - LabelTextV()
// - BulletText()
// - BulletTextV()
//-------------------------------------------------------------------------
void ImGui::TextEx(const char* text, const char* text_end, ImGuiTextFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
// Accept null ranges
if (text == text_end)
text = text_end = "";
// Calculate length
const char* text_begin = text;
if (text_end == NULL)
text_end = text + strlen(text); // FIXME-OPT
const ImVec2 text_pos(window->DC.CursorPos.x, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
const float wrap_pos_x = window->DC.TextWrapPos;
const bool wrap_enabled = (wrap_pos_x >= 0.0f);
if (text_end - text <= 2000 || wrap_enabled)
{
// Common case
const float wrap_width = wrap_enabled ? CalcWrapWidthForPos(window->DC.CursorPos, wrap_pos_x) : 0.0f;
const ImVec2 text_size = CalcTextSize(text_begin, text_end, false, wrap_width);
ImRect bb(text_pos, text_pos + text_size);
ItemSize(text_size, 0.0f);
if (!ItemAdd(bb, 0))
return;
// Render (we don't hide text after ## in this end-user function)
RenderTextWrapped(bb.Min, text_begin, text_end, wrap_width);
}
else
{
// Long text!
// Perform manual coarse clipping to optimize for long multi-line text
// - From this point we will only compute the width of lines that are visible. Optimization only available when word-wrapping is disabled.
// - We also don't vertically center the text within the line full height, which is unlikely to matter because we are likely the biggest and only item on the line.
// - We use memchr(), pay attention that well optimized versions of those str/mem functions are much faster than a casually written loop.
const char* line = text;
const float line_height = GetTextLineHeight();
ImVec2 text_size(0, 0);
// Lines to skip (can't skip when logging text)
ImVec2 pos = text_pos;
if (!g.LogEnabled)
{
int lines_skippable = (int)((window->ClipRect.Min.y - text_pos.y) / line_height);
if (lines_skippable > 0)
{
int lines_skipped = 0;
while (line < text_end && lines_skipped < lines_skippable)
{
const char* line_end = (const char*)memchr(line, '\n', text_end - line);
if (!line_end)
line_end = text_end;
if ((flags & ImGuiTextFlags_NoWidthForLargeClippedText) == 0)
text_size.x = ImMax(text_size.x, CalcTextSize(line, line_end).x);
line = line_end + 1;
lines_skipped++;
}
pos.y += lines_skipped * line_height;
}
}
// Lines to render
if (line < text_end)
{
ImRect line_rect(pos, pos + ImVec2(FLT_MAX, line_height));
while (line < text_end)
{
if (IsClippedEx(line_rect, 0))
break;
const char* line_end = (const char*)memchr(line, '\n', text_end - line);
if (!line_end)
line_end = text_end;
text_size.x = ImMax(text_size.x, CalcTextSize(line, line_end).x);
RenderText(pos, line, line_end, false);
line = line_end + 1;
line_rect.Min.y += line_height;
line_rect.Max.y += line_height;
pos.y += line_height;
}
// Count remaining lines
int lines_skipped = 0;
while (line < text_end)
{
const char* line_end = (const char*)memchr(line, '\n', text_end - line);
if (!line_end)
line_end = text_end;
if ((flags & ImGuiTextFlags_NoWidthForLargeClippedText) == 0)
text_size.x = ImMax(text_size.x, CalcTextSize(line, line_end).x);
line = line_end + 1;
lines_skipped++;
}
pos.y += lines_skipped * line_height;
}
text_size.y = (pos - text_pos).y;
ImRect bb(text_pos, text_pos + text_size);
ItemSize(text_size, 0.0f);
ItemAdd(bb, 0);
}
}
void ImGui::TextUnformatted(const char* text, const char* text_end)
{
TextEx(text, text_end, ImGuiTextFlags_NoWidthForLargeClippedText);
}
void ImGui::Text(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
TextV(fmt, args);
va_end(args);
}
void ImGui::TextV(const char* fmt, va_list args)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
const char* text, *text_end;
ImFormatStringToTempBufferV(&text, &text_end, fmt, args);
TextEx(text, text_end, ImGuiTextFlags_NoWidthForLargeClippedText);
}
void ImGui::TextColored(const ImVec4& col, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
TextColoredV(col, fmt, args);
va_end(args);
}
void ImGui::TextColoredV(const ImVec4& col, const char* fmt, va_list args)
{
PushStyleColor(ImGuiCol_Text, col);
TextV(fmt, args);
PopStyleColor();
}
void ImGui::TextDisabled(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
TextDisabledV(fmt, args);
va_end(args);
}
void ImGui::TextDisabledV(const char* fmt, va_list args)
{
ImGuiContext& g = *GImGui;
PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]);
TextV(fmt, args);
PopStyleColor();
}
void ImGui::TextWrapped(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
TextWrappedV(fmt, args);
va_end(args);
}
void ImGui::TextWrappedV(const char* fmt, va_list args)
{
ImGuiContext& g = *GImGui;
const bool need_backup = (g.CurrentWindow->DC.TextWrapPos < 0.0f); // Keep existing wrap position if one is already set
if (need_backup)
PushTextWrapPos(0.0f);
TextV(fmt, args);
if (need_backup)
PopTextWrapPos();
}
void ImGui::LabelText(const char* label, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
LabelTextV(label, fmt, args);
va_end(args);
}
// Add a label+text combo aligned to other label+value widgets
void ImGui::LabelTextV(const char* label, const char* fmt, va_list args)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const float w = CalcItemWidth();
const char* value_text_begin, *value_text_end;
ImFormatStringToTempBufferV(&value_text_begin, &value_text_end, fmt, args);
const ImVec2 value_size = CalcTextSize(value_text_begin, value_text_end, false);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImVec2 pos = window->DC.CursorPos;
const ImRect value_bb(pos, pos + ImVec2(w, value_size.y + style.FramePadding.y * 2));
const ImRect total_bb(pos, pos + ImVec2(w + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), ImMax(value_size.y, label_size.y) + style.FramePadding.y * 2));
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, 0))
return;
// Render
RenderTextClipped(value_bb.Min + style.FramePadding, value_bb.Max, value_text_begin, value_text_end, &value_size, ImVec2(0.0f, 0.0f));
if (label_size.x > 0.0f)
RenderText(ImVec2(value_bb.Max.x + style.ItemInnerSpacing.x, value_bb.Min.y + style.FramePadding.y), label);
}
void ImGui::BulletText(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
BulletTextV(fmt, args);
va_end(args);
}
// Text with a little bullet aligned to the typical tree node.
void ImGui::BulletTextV(const char* fmt, va_list args)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const char* text_begin, *text_end;
ImFormatStringToTempBufferV(&text_begin, &text_end, fmt, args);
const ImVec2 label_size = CalcTextSize(text_begin, text_end, false);
const ImVec2 total_size = ImVec2(g.FontSize + (label_size.x > 0.0f ? (label_size.x + style.FramePadding.x * 2) : 0.0f), label_size.y); // Empty text doesn't add padding
ImVec2 pos = window->DC.CursorPos;
pos.y += window->DC.CurrLineTextBaseOffset;
ItemSize(total_size, 0.0f);
const ImRect bb(pos, pos + total_size);
if (!ItemAdd(bb, 0))
return;
// Render
ImU32 text_col = GetColorU32(ImGuiCol_Text);
RenderBullet(window->DrawList, bb.Min + ImVec2(style.FramePadding.x + g.FontSize * 0.5f, g.FontSize * 0.5f), text_col);
RenderText(bb.Min + ImVec2(g.FontSize + style.FramePadding.x * 2, 0.0f), text_begin, text_end, false);
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: Main
//-------------------------------------------------------------------------
// - ButtonBehavior() [Internal]
// - Button()
// - SmallButton()
// - InvisibleButton()
// - ArrowButton()
// - CloseButton() [Internal]
// - CollapseButton() [Internal]
// - GetWindowScrollbarID() [Internal]
// - GetWindowScrollbarRect() [Internal]
// - Scrollbar() [Internal]
// - ScrollbarEx() [Internal]
// - Image()
// - ImageButton()
// - Checkbox()
// - CheckboxFlagsT() [Internal]
// - CheckboxFlags()
// - RadioButton()
// - ProgressBar()
// - Bullet()
//-------------------------------------------------------------------------
// The ButtonBehavior() function is key to many interactions and used by many/most widgets.
// Because we handle so many cases (keyboard/gamepad navigation, drag and drop) and many specific behavior (via ImGuiButtonFlags_),
// this code is a little complex.
// By far the most common path is interacting with the Mouse using the default ImGuiButtonFlags_PressedOnClickRelease button behavior.
// See the series of events below and the corresponding state reported by dear imgui:
//------------------------------------------------------------------------------------------------------------------------------------------------
// with PressedOnClickRelease: return-value IsItemHovered() IsItemActive() IsItemActivated() IsItemDeactivated() IsItemClicked()
// Frame N+0 (mouse is outside bb) - - - - - -
// Frame N+1 (mouse moves inside bb) - true - - - -
// Frame N+2 (mouse button is down) - true true true - true
// Frame N+3 (mouse button is down) - true true - - -
// Frame N+4 (mouse moves outside bb) - - true - - -
// Frame N+5 (mouse moves inside bb) - true true - - -
// Frame N+6 (mouse button is released) true true - - true -
// Frame N+7 (mouse button is released) - true - - - -
// Frame N+8 (mouse moves outside bb) - - - - - -
//------------------------------------------------------------------------------------------------------------------------------------------------
// with PressedOnClick: return-value IsItemHovered() IsItemActive() IsItemActivated() IsItemDeactivated() IsItemClicked()
// Frame N+2 (mouse button is down) true true true true - true
// Frame N+3 (mouse button is down) - true true - - -
// Frame N+6 (mouse button is released) - true - - true -
// Frame N+7 (mouse button is released) - true - - - -
//------------------------------------------------------------------------------------------------------------------------------------------------
// with PressedOnRelease: return-value IsItemHovered() IsItemActive() IsItemActivated() IsItemDeactivated() IsItemClicked()
// Frame N+2 (mouse button is down) - true - - - true
// Frame N+3 (mouse button is down) - true - - - -
// Frame N+6 (mouse button is released) true true - - - -
// Frame N+7 (mouse button is released) - true - - - -
//------------------------------------------------------------------------------------------------------------------------------------------------
// with PressedOnDoubleClick: return-value IsItemHovered() IsItemActive() IsItemActivated() IsItemDeactivated() IsItemClicked()
// Frame N+0 (mouse button is down) - true - - - true
// Frame N+1 (mouse button is down) - true - - - -
// Frame N+2 (mouse button is released) - true - - - -
// Frame N+3 (mouse button is released) - true - - - -
// Frame N+4 (mouse button is down) true true true true - true
// Frame N+5 (mouse button is down) - true true - - -
// Frame N+6 (mouse button is released) - true - - true -
// Frame N+7 (mouse button is released) - true - - - -
//------------------------------------------------------------------------------------------------------------------------------------------------
// Note that some combinations are supported,
// - PressedOnDragDropHold can generally be associated with any flag.
// - PressedOnDoubleClick can be associated by PressedOnClickRelease/PressedOnRelease, in which case the second release event won't be reported.
//------------------------------------------------------------------------------------------------------------------------------------------------
// The behavior of the return-value changes when ImGuiButtonFlags_Repeat is set:
// Repeat+ Repeat+ Repeat+ Repeat+
// PressedOnClickRelease PressedOnClick PressedOnRelease PressedOnDoubleClick
//-------------------------------------------------------------------------------------------------------------------------------------------------
// Frame N+0 (mouse button is down) - true - true
// ... - - - -
// Frame N + RepeatDelay true true - true
// ... - - - -
// Frame N + RepeatDelay + RepeatRate*N true true - true
//-------------------------------------------------------------------------------------------------------------------------------------------------
bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
// Default only reacts to left mouse button
if ((flags & ImGuiButtonFlags_MouseButtonMask_) == 0)
flags |= ImGuiButtonFlags_MouseButtonDefault_;
// Default behavior requires click + release inside bounding box
if ((flags & ImGuiButtonFlags_PressedOnMask_) == 0)
flags |= ImGuiButtonFlags_PressedOnDefault_;
ImGuiWindow* backup_hovered_window = g.HoveredWindow;
const bool flatten_hovered_children = (flags & ImGuiButtonFlags_FlattenChildren) && g.HoveredWindow && g.HoveredWindow->RootWindow == window;
if (flatten_hovered_children)
g.HoveredWindow = window;
#ifdef IMGUI_ENABLE_TEST_ENGINE
// Alternate registration spot, for when caller didn't use ItemAdd()
if (id != 0 && g.LastItemData.ID != id)
IMGUI_TEST_ENGINE_ITEM_ADD(id, bb, NULL);
#endif
bool pressed = false;
bool hovered = ItemHoverable(bb, id);
// Drag source doesn't report as hovered
if (hovered && g.DragDropActive && g.DragDropPayload.SourceId == id && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoDisableHover))
hovered = false;
// Special mode for Drag and Drop where holding button pressed for a long time while dragging another item triggers the button
if (g.DragDropActive && (flags & ImGuiButtonFlags_PressedOnDragDropHold) && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoHoldToOpenOthers))
if (IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem))
{
hovered = true;
SetHoveredID(id);
if (g.HoveredIdTimer - g.IO.DeltaTime <= DRAGDROP_HOLD_TO_OPEN_TIMER && g.HoveredIdTimer >= DRAGDROP_HOLD_TO_OPEN_TIMER)
{
pressed = true;
g.DragDropHoldJustPressedId = id;
FocusWindow(window);
}
}
if (flatten_hovered_children)
g.HoveredWindow = backup_hovered_window;
// AllowOverlap mode (rarely used) requires previous frame HoveredId to be null or to match. This allows using patterns where a later submitted widget overlaps a previous one.
if (hovered && (flags & ImGuiButtonFlags_AllowItemOverlap) && (g.HoveredIdPreviousFrame != id && g.HoveredIdPreviousFrame != 0))
hovered = false;
// Mouse handling
const ImGuiID test_owner_id = (flags & ImGuiButtonFlags_NoTestKeyOwner) ? ImGuiKeyOwner_Any : id;
if (hovered)
{
// Poll mouse buttons
// - 'mouse_button_clicked' is generally carried into ActiveIdMouseButton when setting ActiveId.
// - Technically we only need some values in one code path, but since this is gated by hovered test this is fine.
int mouse_button_clicked = -1;
int mouse_button_released = -1;
for (int button = 0; button < 3; button++)
if (flags & (ImGuiButtonFlags_MouseButtonLeft << button)) // Handle ImGuiButtonFlags_MouseButtonRight and ImGuiButtonFlags_MouseButtonMiddle here.
{
if (IsMouseClicked(button, test_owner_id) && mouse_button_clicked == -1) { mouse_button_clicked = button; }
if (IsMouseReleased(button, test_owner_id) && mouse_button_released == -1) { mouse_button_released = button; }
}
// Process initial action
if (!(flags & ImGuiButtonFlags_NoKeyModifiers) || (!g.IO.KeyCtrl && !g.IO.KeyShift && !g.IO.KeyAlt))
{
if (mouse_button_clicked != -1 && g.ActiveId != id)
{
if (!(flags & ImGuiButtonFlags_NoSetKeyOwner))
SetKeyOwner(MouseButtonToKey(mouse_button_clicked), id);
if (flags & (ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClickReleaseAnywhere))
{
SetActiveID(id, window);
g.ActiveIdMouseButton = mouse_button_clicked;
if (!(flags & ImGuiButtonFlags_NoNavFocus))
SetFocusID(id, window);
FocusWindow(window);
}
if ((flags & ImGuiButtonFlags_PressedOnClick) || ((flags & ImGuiButtonFlags_PressedOnDoubleClick) && g.IO.MouseClickedCount[mouse_button_clicked] == 2))
{
pressed = true;
if (flags & ImGuiButtonFlags_NoHoldingActiveId)
ClearActiveID();
else
SetActiveID(id, window); // Hold on ID
if (!(flags & ImGuiButtonFlags_NoNavFocus))
SetFocusID(id, window);
g.ActiveIdMouseButton = mouse_button_clicked;
FocusWindow(window);
}
}
if (flags & ImGuiButtonFlags_PressedOnRelease)
{
if (mouse_button_released != -1)
{
const bool has_repeated_at_least_once = (flags & ImGuiButtonFlags_Repeat) && g.IO.MouseDownDurationPrev[mouse_button_released] >= g.IO.KeyRepeatDelay; // Repeat mode trumps on release behavior
if (!has_repeated_at_least_once)
pressed = true;
if (!(flags & ImGuiButtonFlags_NoNavFocus))
SetFocusID(id, window);
ClearActiveID();
}
}
// 'Repeat' mode acts when held regardless of _PressedOn flags (see table above).
// Relies on repeat logic of IsMouseClicked() but we may as well do it ourselves if we end up exposing finer RepeatDelay/RepeatRate settings.
if (g.ActiveId == id && (flags & ImGuiButtonFlags_Repeat))
if (g.IO.MouseDownDuration[g.ActiveIdMouseButton] > 0.0f && IsMouseClicked(g.ActiveIdMouseButton, test_owner_id, ImGuiInputFlags_Repeat))
pressed = true;
}
if (pressed)
g.NavDisableHighlight = true;
}
// Gamepad/Keyboard navigation
// We report navigated item as hovered but we don't set g.HoveredId to not interfere with mouse.
if (g.NavId == id && !g.NavDisableHighlight && g.NavDisableMouseHover && (g.ActiveId == 0 || g.ActiveId == id || g.ActiveId == window->MoveId))
if (!(flags & ImGuiButtonFlags_NoHoveredOnFocus))
hovered = true;
if (g.NavActivateDownId == id)
{
bool nav_activated_by_code = (g.NavActivateId == id);
bool nav_activated_by_inputs = (g.NavActivatePressedId == id);
if (!nav_activated_by_inputs && (flags & ImGuiButtonFlags_Repeat))
{
// Avoid pressing multiple keys from triggering excessive amount of repeat events
const ImGuiKeyData* key1 = GetKeyData(ImGuiKey_Space);
const ImGuiKeyData* key2 = GetKeyData(ImGuiKey_Enter);
const ImGuiKeyData* key3 = GetKeyData(ImGuiKey_NavGamepadActivate);
const float t1 = ImMax(ImMax(key1->DownDuration, key2->DownDuration), key3->DownDuration);
nav_activated_by_inputs = CalcTypematicRepeatAmount(t1 - g.IO.DeltaTime, t1, g.IO.KeyRepeatDelay, g.IO.KeyRepeatRate) > 0;
}
if (nav_activated_by_code || nav_activated_by_inputs)
{
// Set active id so it can be queried by user via IsItemActive(), equivalent of holding the mouse button.
pressed = true;
SetActiveID(id, window);
g.ActiveIdSource = ImGuiInputSource_Nav;
if (!(flags & ImGuiButtonFlags_NoNavFocus))
SetFocusID(id, window);
}
}
// Process while held
bool held = false;
if (g.ActiveId == id)
{
if (g.ActiveIdSource == ImGuiInputSource_Mouse)
{
if (g.ActiveIdIsJustActivated)
g.ActiveIdClickOffset = g.IO.MousePos - bb.Min;
const int mouse_button = g.ActiveIdMouseButton;
if (IsMouseDown(mouse_button, test_owner_id))
{
held = true;
}
else
{
bool release_in = hovered && (flags & ImGuiButtonFlags_PressedOnClickRelease) != 0;
bool release_anywhere = (flags & ImGuiButtonFlags_PressedOnClickReleaseAnywhere) != 0;
if ((release_in || release_anywhere) && !g.DragDropActive)
{
// Report as pressed when releasing the mouse (this is the most common path)
bool is_double_click_release = (flags & ImGuiButtonFlags_PressedOnDoubleClick) && g.IO.MouseReleased[mouse_button] && g.IO.MouseClickedLastCount[mouse_button] == 2;
bool is_repeating_already = (flags & ImGuiButtonFlags_Repeat) && g.IO.MouseDownDurationPrev[mouse_button] >= g.IO.KeyRepeatDelay; // Repeat mode trumps <on release>
bool is_button_avail_or_owned = TestKeyOwner(MouseButtonToKey(mouse_button), test_owner_id);
if (!is_double_click_release && !is_repeating_already && is_button_avail_or_owned)
pressed = true;
}
ClearActiveID();
}
if (!(flags & ImGuiButtonFlags_NoNavFocus))
g.NavDisableHighlight = true;
}
else if (g.ActiveIdSource == ImGuiInputSource_Nav)
{
// When activated using Nav, we hold on the ActiveID until activation button is released
if (g.NavActivateDownId != id)
ClearActiveID();
}
if (pressed)
g.ActiveIdHasBeenPressedBefore = true;
}
if (out_hovered) *out_hovered = hovered;
if (out_held) *out_held = held;
return pressed;
}
bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
ImVec2 pos = window->DC.CursorPos;
if ((flags & ImGuiButtonFlags_AlignTextBaseLine) && style.FramePadding.y < window->DC.CurrLineTextBaseOffset) // Try to vertically align buttons that are smaller/have no padding so that text baseline matches (bit hacky, since it shouldn't be a flag)
pos.y += window->DC.CurrLineTextBaseOffset - style.FramePadding.y;
ImVec2 size = CalcItemSize(size_arg, label_size.x + style.FramePadding.x * 2.0f, label_size.y + style.FramePadding.y * 2.0f);
const ImRect bb(pos, pos + size);
ItemSize(size, style.FramePadding.y);
if (!ItemAdd(bb, id))
return false;
if (g.LastItemData.InFlags & ImGuiItemFlags_ButtonRepeat)
flags |= ImGuiButtonFlags_Repeat;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
// Render
const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
RenderNavHighlight(bb, id);
RenderFrame(bb.Min, bb.Max, col, true, style.FrameRounding);
if (g.LogEnabled)
LogSetNextTextDecoration("[", "]");
RenderTextClipped(bb.Min + style.FramePadding, bb.Max - style.FramePadding, label, NULL, &label_size, style.ButtonTextAlign, &bb);
// Automatically close popups
//if (pressed && !(flags & ImGuiButtonFlags_DontClosePopups) && (window->Flags & ImGuiWindowFlags_Popup))
// CloseCurrentPopup();
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
return pressed;
}
bool ImGui::Button(const char* label, const ImVec2& size_arg)
{
return ButtonEx(label, size_arg, ImGuiButtonFlags_None);
}
// Small buttons fits within text without additional vertical spacing.
bool ImGui::SmallButton(const char* label)
{
ImGuiContext& g = *GImGui;
float backup_padding_y = g.Style.FramePadding.y;
g.Style.FramePadding.y = 0.0f;
bool pressed = ButtonEx(label, ImVec2(0, 0), ImGuiButtonFlags_AlignTextBaseLine);
g.Style.FramePadding.y = backup_padding_y;
return pressed;
}
// Tip: use ImGui::PushID()/PopID() to push indices or pointers in the ID stack.
// Then you can keep 'str_id' empty or the same for all your buttons (instead of creating a string based on a non-string id)
bool ImGui::InvisibleButton(const char* str_id, const ImVec2& size_arg, ImGuiButtonFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
// Cannot use zero-size for InvisibleButton(). Unlike Button() there is not way to fallback using the label size.
IM_ASSERT(size_arg.x != 0.0f && size_arg.y != 0.0f);
const ImGuiID id = window->GetID(str_id);
ImVec2 size = CalcItemSize(size_arg, 0.0f, 0.0f);
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
ItemSize(size);
if (!ItemAdd(bb, id))
return false;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
IMGUI_TEST_ENGINE_ITEM_INFO(id, str_id, g.LastItemData.StatusFlags);
return pressed;
}
bool ImGui::ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size, ImGuiButtonFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const ImGuiID id = window->GetID(str_id);
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
const float default_size = GetFrameHeight();
ItemSize(size, (size.y >= default_size) ? g.Style.FramePadding.y : -1.0f);
if (!ItemAdd(bb, id))
return false;
if (g.LastItemData.InFlags & ImGuiItemFlags_ButtonRepeat)
flags |= ImGuiButtonFlags_Repeat;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
// Render
const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
const ImU32 text_col = GetColorU32(ImGuiCol_Text);
RenderNavHighlight(bb, id);
RenderFrame(bb.Min, bb.Max, bg_col, true, g.Style.FrameRounding);
RenderArrow(window->DrawList, bb.Min + ImVec2(ImMax(0.0f, (size.x - g.FontSize) * 0.5f), ImMax(0.0f, (size.y - g.FontSize) * 0.5f)), text_col, dir);
IMGUI_TEST_ENGINE_ITEM_INFO(id, str_id, g.LastItemData.StatusFlags);
return pressed;
}
bool ImGui::ArrowButton(const char* str_id, ImGuiDir dir)
{
float sz = GetFrameHeight();
return ArrowButtonEx(str_id, dir, ImVec2(sz, sz), ImGuiButtonFlags_None);
}
// Button to close a window
bool ImGui::CloseButton(ImGuiID id, const ImVec2& pos)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// Tweak 1: Shrink hit-testing area if button covers an abnormally large proportion of the visible region. That's in order to facilitate moving the window away. (#3825)
// This may better be applied as a general hit-rect reduction mechanism for all widgets to ensure the area to move window is always accessible?
const ImRect bb(pos, pos + ImVec2(g.FontSize, g.FontSize) + g.Style.FramePadding * 2.0f);
ImRect bb_interact = bb;
const float area_to_visible_ratio = window->OuterRectClipped.GetArea() / bb.GetArea();
if (area_to_visible_ratio < 1.5f)
bb_interact.Expand(ImFloor(bb_interact.GetSize() * -0.25f));
// Tweak 2: We intentionally allow interaction when clipped so that a mechanical Alt,Right,Activate sequence can always close a window.
// (this isn't the regular behavior of buttons, but it doesn't affect the user much because navigation tends to keep items visible).
bool is_clipped = !ItemAdd(bb_interact, id);
bool hovered, held;
bool pressed = ButtonBehavior(bb_interact, id, &hovered, &held);
if (is_clipped)
return pressed;
// Render
// FIXME: Clarify this mess
ImU32 col = GetColorU32(held ? ImGuiCol_ButtonActive : ImGuiCol_ButtonHovered);
ImVec2 center = bb.GetCenter();
if (hovered)
window->DrawList->AddCircleFilled(center, ImMax(2.0f, g.FontSize * 0.5f + 1.0f), col, 12);
float cross_extent = g.FontSize * 0.5f * 0.7071f - 1.0f;
ImU32 cross_col = GetColorU32(ImGuiCol_Text);
center -= ImVec2(0.5f, 0.5f);
window->DrawList->AddLine(center + ImVec2(+cross_extent, +cross_extent), center + ImVec2(-cross_extent, -cross_extent), cross_col, 1.0f);
window->DrawList->AddLine(center + ImVec2(+cross_extent, -cross_extent), center + ImVec2(-cross_extent, +cross_extent), cross_col, 1.0f);
return pressed;
}
bool ImGui::CollapseButton(ImGuiID id, const ImVec2& pos)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImRect bb(pos, pos + ImVec2(g.FontSize, g.FontSize) + g.Style.FramePadding * 2.0f);
ItemAdd(bb, id);
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_None);
// Render
ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
ImU32 text_col = GetColorU32(ImGuiCol_Text);
if (hovered || held)
window->DrawList->AddCircleFilled(bb.GetCenter()/*+ ImVec2(0.0f, -0.5f)*/, g.FontSize * 0.5f + 1.0f, bg_col, 12);
RenderArrow(window->DrawList, bb.Min + g.Style.FramePadding, text_col, window->Collapsed ? ImGuiDir_Right : ImGuiDir_Down, 1.0f);
// Switch to moving the window after mouse is moved beyond the initial drag threshold
if (IsItemActive() && IsMouseDragging(0))
StartMouseMovingWindow(window);
return pressed;
}
ImGuiID ImGui::GetWindowScrollbarID(ImGuiWindow* window, ImGuiAxis axis)
{
return window->GetID(axis == ImGuiAxis_X ? "#SCROLLX" : "#SCROLLY");
}
// Return scrollbar rectangle, must only be called for corresponding axis if window->ScrollbarX/Y is set.
ImRect ImGui::GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis)
{
const ImRect outer_rect = window->Rect();
const ImRect inner_rect = window->InnerRect;
const float border_size = window->WindowBorderSize;
const float scrollbar_size = window->ScrollbarSizes[axis ^ 1]; // (ScrollbarSizes.x = width of Y scrollbar; ScrollbarSizes.y = height of X scrollbar)
IM_ASSERT(scrollbar_size > 0.0f);
if (axis == ImGuiAxis_X)
return ImRect(inner_rect.Min.x, ImMax(outer_rect.Min.y, outer_rect.Max.y - border_size - scrollbar_size), inner_rect.Max.x, outer_rect.Max.y);
else
return ImRect(ImMax(outer_rect.Min.x, outer_rect.Max.x - border_size - scrollbar_size), inner_rect.Min.y, outer_rect.Max.x, inner_rect.Max.y);
}
void ImGui::Scrollbar(ImGuiAxis axis)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const ImGuiID id = GetWindowScrollbarID(window, axis);
// Calculate scrollbar bounding box
ImRect bb = GetWindowScrollbarRect(window, axis);
ImDrawFlags rounding_corners = ImDrawFlags_RoundCornersNone;
if (axis == ImGuiAxis_X)
{
rounding_corners |= ImDrawFlags_RoundCornersBottomLeft;
if (!window->ScrollbarY)
rounding_corners |= ImDrawFlags_RoundCornersBottomRight;
}
else
{
if ((window->Flags & ImGuiWindowFlags_NoTitleBar) && !(window->Flags & ImGuiWindowFlags_MenuBar))
rounding_corners |= ImDrawFlags_RoundCornersTopRight;
if (!window->ScrollbarX)
rounding_corners |= ImDrawFlags_RoundCornersBottomRight;
}
float size_avail = window->InnerRect.Max[axis] - window->InnerRect.Min[axis];
float size_contents = window->ContentSize[axis] + window->WindowPadding[axis] * 2.0f;
ImS64 scroll = (ImS64)window->Scroll[axis];
ScrollbarEx(bb, id, axis, &scroll, (ImS64)size_avail, (ImS64)size_contents, rounding_corners);
window->Scroll[axis] = (float)scroll;
}
// Vertical/Horizontal scrollbar
// The entire piece of code below is rather confusing because:
// - We handle absolute seeking (when first clicking outside the grab) and relative manipulation (afterward or when clicking inside the grab)
// - We store values as normalized ratio and in a form that allows the window content to change while we are holding on a scrollbar
// - We handle both horizontal and vertical scrollbars, which makes the terminology not ideal.
// Still, the code should probably be made simpler..
bool ImGui::ScrollbarEx(const ImRect& bb_frame, ImGuiID id, ImGuiAxis axis, ImS64* p_scroll_v, ImS64 size_avail_v, ImS64 size_contents_v, ImDrawFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
const float bb_frame_width = bb_frame.GetWidth();
const float bb_frame_height = bb_frame.GetHeight();
if (bb_frame_width <= 0.0f || bb_frame_height <= 0.0f)
return false;
// When we are too small, start hiding and disabling the grab (this reduce visual noise on very small window and facilitate using the window resize grab)
float alpha = 1.0f;
if ((axis == ImGuiAxis_Y) && bb_frame_height < g.FontSize + g.Style.FramePadding.y * 2.0f)
alpha = ImSaturate((bb_frame_height - g.FontSize) / (g.Style.FramePadding.y * 2.0f));
if (alpha <= 0.0f)
return false;
const ImGuiStyle& style = g.Style;
const bool allow_interaction = (alpha >= 1.0f);
ImRect bb = bb_frame;
bb.Expand(ImVec2(-ImClamp(IM_FLOOR((bb_frame_width - 2.0f) * 0.5f), 0.0f, 3.0f), -ImClamp(IM_FLOOR((bb_frame_height - 2.0f) * 0.5f), 0.0f, 3.0f)));
// V denote the main, longer axis of the scrollbar (= height for a vertical scrollbar)
const float scrollbar_size_v = (axis == ImGuiAxis_X) ? bb.GetWidth() : bb.GetHeight();
// Calculate the height of our grabbable box. It generally represent the amount visible (vs the total scrollable amount)
// But we maintain a minimum size in pixel to allow for the user to still aim inside.
IM_ASSERT(ImMax(size_contents_v, size_avail_v) > 0.0f); // Adding this assert to check if the ImMax(XXX,1.0f) is still needed. PLEASE CONTACT ME if this triggers.
const ImS64 win_size_v = ImMax(ImMax(size_contents_v, size_avail_v), (ImS64)1);
const float grab_h_pixels = ImClamp(scrollbar_size_v * ((float)size_avail_v / (float)win_size_v), style.GrabMinSize, scrollbar_size_v);
const float grab_h_norm = grab_h_pixels / scrollbar_size_v;
// Handle input right away. None of the code of Begin() is relying on scrolling position before calling Scrollbar().
bool held = false;
bool hovered = false;
ItemAdd(bb_frame, id, NULL, ImGuiItemFlags_NoNav);
ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_NoNavFocus);
const ImS64 scroll_max = ImMax((ImS64)1, size_contents_v - size_avail_v);
float scroll_ratio = ImSaturate((float)*p_scroll_v / (float)scroll_max);
float grab_v_norm = scroll_ratio * (scrollbar_size_v - grab_h_pixels) / scrollbar_size_v; // Grab position in normalized space
if (held && allow_interaction && grab_h_norm < 1.0f)
{
const float scrollbar_pos_v = bb.Min[axis];
const float mouse_pos_v = g.IO.MousePos[axis];
// Click position in scrollbar normalized space (0.0f->1.0f)
const float clicked_v_norm = ImSaturate((mouse_pos_v - scrollbar_pos_v) / scrollbar_size_v);
SetHoveredID(id);
bool seek_absolute = false;
if (g.ActiveIdIsJustActivated)
{
// On initial click calculate the distance between mouse and the center of the grab
seek_absolute = (clicked_v_norm < grab_v_norm || clicked_v_norm > grab_v_norm + grab_h_norm);
if (seek_absolute)
g.ScrollbarClickDeltaToGrabCenter = 0.0f;
else
g.ScrollbarClickDeltaToGrabCenter = clicked_v_norm - grab_v_norm - grab_h_norm * 0.5f;
}
// Apply scroll (p_scroll_v will generally point on one member of window->Scroll)
// It is ok to modify Scroll here because we are being called in Begin() after the calculation of ContentSize and before setting up our starting position
const float scroll_v_norm = ImSaturate((clicked_v_norm - g.ScrollbarClickDeltaToGrabCenter - grab_h_norm * 0.5f) / (1.0f - grab_h_norm));
*p_scroll_v = (ImS64)(scroll_v_norm * scroll_max);
// Update values for rendering
scroll_ratio = ImSaturate((float)*p_scroll_v / (float)scroll_max);
grab_v_norm = scroll_ratio * (scrollbar_size_v - grab_h_pixels) / scrollbar_size_v;
// Update distance to grab now that we have seeked and saturated
if (seek_absolute)
g.ScrollbarClickDeltaToGrabCenter = clicked_v_norm - grab_v_norm - grab_h_norm * 0.5f;
}
// Render
const ImU32 bg_col = GetColorU32(ImGuiCol_ScrollbarBg);
const ImU32 grab_col = GetColorU32(held ? ImGuiCol_ScrollbarGrabActive : hovered ? ImGuiCol_ScrollbarGrabHovered : ImGuiCol_ScrollbarGrab, alpha);
window->DrawList->AddRectFilled(bb_frame.Min, bb_frame.Max, bg_col, window->WindowRounding, flags);
ImRect grab_rect;
if (axis == ImGuiAxis_X)
grab_rect = ImRect(ImLerp(bb.Min.x, bb.Max.x, grab_v_norm), bb.Min.y, ImLerp(bb.Min.x, bb.Max.x, grab_v_norm) + grab_h_pixels, bb.Max.y);
else
grab_rect = ImRect(bb.Min.x, ImLerp(bb.Min.y, bb.Max.y, grab_v_norm), bb.Max.x, ImLerp(bb.Min.y, bb.Max.y, grab_v_norm) + grab_h_pixels);
window->DrawList->AddRectFilled(grab_rect.Min, grab_rect.Max, grab_col, style.ScrollbarRounding);
return held;
}
void ImGui::Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& tint_col, const ImVec4& border_col)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
if (border_col.w > 0.0f)
bb.Max += ImVec2(2, 2);
ItemSize(bb);
if (!ItemAdd(bb, 0))
return;
if (border_col.w > 0.0f)
{
window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(border_col), 0.0f);
window->DrawList->AddImage(user_texture_id, bb.Min + ImVec2(1, 1), bb.Max - ImVec2(1, 1), uv0, uv1, GetColorU32(tint_col));
}
else
{
window->DrawList->AddImage(user_texture_id, bb.Min, bb.Max, uv0, uv1, GetColorU32(tint_col));
}
}
// ImageButton() is flawed as 'id' is always derived from 'texture_id' (see #2464 #1390)
// We provide this internal helper to write your own variant while we figure out how to redesign the public ImageButton() API.
bool ImGui::ImageButtonEx(ImGuiID id, ImTextureID texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& bg_col, const ImVec4& tint_col, ImGuiButtonFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const ImVec2 padding = g.Style.FramePadding;
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size + padding * 2.0f);
ItemSize(bb);
if (!ItemAdd(bb, id))
return false;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
// Render
const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
RenderNavHighlight(bb, id);
RenderFrame(bb.Min, bb.Max, col, true, ImClamp((float)ImMin(padding.x, padding.y), 0.0f, g.Style.FrameRounding));
if (bg_col.w > 0.0f)
window->DrawList->AddRectFilled(bb.Min + padding, bb.Max - padding, GetColorU32(bg_col));
window->DrawList->AddImage(texture_id, bb.Min + padding, bb.Max - padding, uv0, uv1, GetColorU32(tint_col));
return pressed;
}
bool ImGui::ImageButton(const char* str_id, ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& bg_col, const ImVec4& tint_col)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
return ImageButtonEx(window->GetID(str_id), user_texture_id, size, uv0, uv1, bg_col, tint_col);
}
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Legacy API obsoleted in 1.89. Two differences with new ImageButton()
// - new ImageButton() requires an explicit 'const char* str_id' Old ImageButton() used opaque imTextureId (created issue with: multiple buttons with same image, transient texture id values, opaque computation of ID)
// - new ImageButton() always use style.FramePadding Old ImageButton() had an override argument.
// If you need to change padding with new ImageButton() you can use PushStyleVar(ImGuiStyleVar_FramePadding, value), consistent with other Button functions.
bool ImGui::ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, int frame_padding, const ImVec4& bg_col, const ImVec4& tint_col)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
// Default to using texture ID as ID. User can still push string/integer prefixes.
PushID((void*)(intptr_t)user_texture_id);
const ImGuiID id = window->GetID("#image");
PopID();
if (frame_padding >= 0)
PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2((float)frame_padding, (float)frame_padding));
bool ret = ImageButtonEx(id, user_texture_id, size, uv0, uv1, bg_col, tint_col);
if (frame_padding >= 0)
PopStyleVar();
return ret;
}
#endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
bool ImGui::Checkbox(const char* label, bool* v)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const float square_sz = GetFrameHeight();
const ImVec2 pos = window->DC.CursorPos;
const ImRect total_bb(pos, pos + ImVec2(square_sz + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), label_size.y + style.FramePadding.y * 2.0f));
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id))
{
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
return false;
}
bool hovered, held;
bool pressed = ButtonBehavior(total_bb, id, &hovered, &held);
if (pressed)
{
*v = !(*v);
MarkItemEdited(id);
}
const ImRect check_bb(pos, pos + ImVec2(square_sz, square_sz));
RenderNavHighlight(total_bb, id);
RenderFrame(check_bb.Min, check_bb.Max, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), true, style.FrameRounding);
ImU32 check_col = GetColorU32(ImGuiCol_CheckMark);
bool mixed_value = (g.LastItemData.InFlags & ImGuiItemFlags_MixedValue) != 0;
if (mixed_value)
{
// Undocumented tristate/mixed/indeterminate checkbox (#2644)
// This may seem awkwardly designed because the aim is to make ImGuiItemFlags_MixedValue supported by all widgets (not just checkbox)
ImVec2 pad(ImMax(1.0f, IM_FLOOR(square_sz / 3.6f)), ImMax(1.0f, IM_FLOOR(square_sz / 3.6f)));
window->DrawList->AddRectFilled(check_bb.Min + pad, check_bb.Max - pad, check_col, style.FrameRounding);
}
else if (*v)
{
const float pad = ImMax(1.0f, IM_FLOOR(square_sz / 6.0f));
RenderCheckMark(window->DrawList, check_bb.Min + ImVec2(pad, pad), check_col, square_sz - pad * 2.0f);
}
ImVec2 label_pos = ImVec2(check_bb.Max.x + style.ItemInnerSpacing.x, check_bb.Min.y + style.FramePadding.y);
if (g.LogEnabled)
LogRenderedText(&label_pos, mixed_value ? "[~]" : *v ? "[x]" : "[ ]");
if (label_size.x > 0.0f)
RenderText(label_pos, label);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
return pressed;
}
template<typename T>
bool ImGui::CheckboxFlagsT(const char* label, T* flags, T flags_value)
{
bool all_on = (*flags & flags_value) == flags_value;
bool any_on = (*flags & flags_value) != 0;
bool pressed;
if (!all_on && any_on)
{
ImGuiContext& g = *GImGui;
ImGuiItemFlags backup_item_flags = g.CurrentItemFlags;
g.CurrentItemFlags |= ImGuiItemFlags_MixedValue;
pressed = Checkbox(label, &all_on);
g.CurrentItemFlags = backup_item_flags;
}
else
{
pressed = Checkbox(label, &all_on);
}
if (pressed)
{
if (all_on)
*flags |= flags_value;
else
*flags &= ~flags_value;
}
return pressed;
}
bool ImGui::CheckboxFlags(const char* label, int* flags, int flags_value)
{
return CheckboxFlagsT(label, flags, flags_value);
}
bool ImGui::CheckboxFlags(const char* label, unsigned int* flags, unsigned int flags_value)
{
return CheckboxFlagsT(label, flags, flags_value);
}
bool ImGui::CheckboxFlags(const char* label, ImS64* flags, ImS64 flags_value)
{
return CheckboxFlagsT(label, flags, flags_value);
}
bool ImGui::CheckboxFlags(const char* label, ImU64* flags, ImU64 flags_value)
{
return CheckboxFlagsT(label, flags, flags_value);
}
bool ImGui::RadioButton(const char* label, bool active)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const float square_sz = GetFrameHeight();
const ImVec2 pos = window->DC.CursorPos;
const ImRect check_bb(pos, pos + ImVec2(square_sz, square_sz));
const ImRect total_bb(pos, pos + ImVec2(square_sz + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), label_size.y + style.FramePadding.y * 2.0f));
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id))
return false;
ImVec2 center = check_bb.GetCenter();
center.x = IM_ROUND(center.x);
center.y = IM_ROUND(center.y);
const float radius = (square_sz - 1.0f) * 0.5f;
bool hovered, held;
bool pressed = ButtonBehavior(total_bb, id, &hovered, &held);
if (pressed)
MarkItemEdited(id);
RenderNavHighlight(total_bb, id);
window->DrawList->AddCircleFilled(center, radius, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), 16);
if (active)
{
const float pad = ImMax(1.0f, IM_FLOOR(square_sz / 6.0f));
window->DrawList->AddCircleFilled(center, radius - pad, GetColorU32(ImGuiCol_CheckMark), 16);
}
if (style.FrameBorderSize > 0.0f)
{
window->DrawList->AddCircle(center + ImVec2(1, 1), radius, GetColorU32(ImGuiCol_BorderShadow), 16, style.FrameBorderSize);
window->DrawList->AddCircle(center, radius, GetColorU32(ImGuiCol_Border), 16, style.FrameBorderSize);
}
ImVec2 label_pos = ImVec2(check_bb.Max.x + style.ItemInnerSpacing.x, check_bb.Min.y + style.FramePadding.y);
if (g.LogEnabled)
LogRenderedText(&label_pos, active ? "(x)" : "( )");
if (label_size.x > 0.0f)
RenderText(label_pos, label);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
return pressed;
}
// FIXME: This would work nicely if it was a public template, e.g. 'template<T> RadioButton(const char* label, T* v, T v_button)', but I'm not sure how we would expose it..
bool ImGui::RadioButton(const char* label, int* v, int v_button)
{
const bool pressed = RadioButton(label, *v == v_button);
if (pressed)
*v = v_button;
return pressed;
}
// size_arg (for each axis) < 0.0f: align to end, 0.0f: auto, > 0.0f: specified size
void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* overlay)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
ImVec2 pos = window->DC.CursorPos;
ImVec2 size = CalcItemSize(size_arg, CalcItemWidth(), g.FontSize + style.FramePadding.y * 2.0f);
ImRect bb(pos, pos + size);
ItemSize(size, style.FramePadding.y);
if (!ItemAdd(bb, 0))
return;
// Render
fraction = ImSaturate(fraction);
RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
bb.Expand(ImVec2(-style.FrameBorderSize, -style.FrameBorderSize));
const ImVec2 fill_br = ImVec2(ImLerp(bb.Min.x, bb.Max.x, fraction), bb.Max.y);
RenderRectFilledRangeH(window->DrawList, bb, GetColorU32(ImGuiCol_PlotHistogram), 0.0f, fraction, style.FrameRounding);
// Default displaying the fraction as percentage string, but user can override it
char overlay_buf[32];
if (!overlay)
{
ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.0f%%", fraction * 100 + 0.01f);
overlay = overlay_buf;
}
ImVec2 overlay_size = CalcTextSize(overlay, NULL);
if (overlay_size.x > 0.0f)
RenderTextClipped(ImVec2(ImClamp(fill_br.x + style.ItemSpacing.x, bb.Min.x, bb.Max.x - overlay_size.x - style.ItemInnerSpacing.x), bb.Min.y), bb.Max, overlay, NULL, &overlay_size, ImVec2(0.0f, 0.5f), &bb);
}
void ImGui::Bullet()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const float line_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y * 2), g.FontSize);
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize, line_height));
ItemSize(bb);
if (!ItemAdd(bb, 0))
{
SameLine(0, style.FramePadding.x * 2);
return;
}
// Render and stay on same line
ImU32 text_col = GetColorU32(ImGuiCol_Text);
RenderBullet(window->DrawList, bb.Min + ImVec2(style.FramePadding.x + g.FontSize * 0.5f, line_height * 0.5f), text_col);
SameLine(0, style.FramePadding.x * 2.0f);
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: Low-level Layout helpers
//-------------------------------------------------------------------------
// - Spacing()
// - Dummy()
// - NewLine()
// - AlignTextToFramePadding()
// - SeparatorEx() [Internal]
// - Separator()
// - SplitterBehavior() [Internal]
// - ShrinkWidths() [Internal]
//-------------------------------------------------------------------------
void ImGui::Spacing()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ItemSize(ImVec2(0, 0));
}
void ImGui::Dummy(const ImVec2& size)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
ItemSize(size);
ItemAdd(bb, 0);
}
void ImGui::NewLine()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
const ImGuiLayoutType backup_layout_type = window->DC.LayoutType;
window->DC.LayoutType = ImGuiLayoutType_Vertical;
window->DC.IsSameLine = false;
if (window->DC.CurrLineSize.y > 0.0f) // In the event that we are on a line with items that is smaller that FontSize high, we will preserve its height.
ItemSize(ImVec2(0, 0));
else
ItemSize(ImVec2(0.0f, g.FontSize));
window->DC.LayoutType = backup_layout_type;
}
void ImGui::AlignTextToFramePadding()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
window->DC.CurrLineSize.y = ImMax(window->DC.CurrLineSize.y, g.FontSize + g.Style.FramePadding.y * 2);
window->DC.CurrLineTextBaseOffset = ImMax(window->DC.CurrLineTextBaseOffset, g.Style.FramePadding.y);
}
// Horizontal/vertical separating line
// FIXME: Surprisingly, this seemingly simple widget is adjacent to MANY different legacy/tricky layout issues.
void ImGui::SeparatorEx(ImGuiSeparatorFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
IM_ASSERT(ImIsPowerOfTwo(flags & (ImGuiSeparatorFlags_Horizontal | ImGuiSeparatorFlags_Vertical))); // Check that only 1 option is selected
const float thickness = 1.0f; // Cannot use g.Style.SeparatorTextSize yet for various reasons.
if (flags & ImGuiSeparatorFlags_Vertical)
{
// Vertical separator, for menu bars (use current line height).
float y1 = window->DC.CursorPos.y;
float y2 = window->DC.CursorPos.y + window->DC.CurrLineSize.y;
const ImRect bb(ImVec2(window->DC.CursorPos.x, y1), ImVec2(window->DC.CursorPos.x + thickness, y2));
ItemSize(ImVec2(thickness, 0.0f));
if (!ItemAdd(bb, 0))
return;
// Draw
window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_Separator));
if (g.LogEnabled)
LogText(" |");
}
else if (flags & ImGuiSeparatorFlags_Horizontal)
{
// Horizontal Separator
float x1 = window->Pos.x;
float x2 = window->Pos.x + window->Size.x;
// FIXME-WORKRECT: old hack (#205) until we decide of consistent behavior with WorkRect/Indent and Separator
if (g.GroupStack.Size > 0 && g.GroupStack.back().WindowID == window->ID)
x1 += window->DC.Indent.x;
// FIXME-WORKRECT: In theory we should simply be using WorkRect.Min.x/Max.x everywhere but it isn't aesthetically what we want,
// need to introduce a variant of WorkRect for that purpose. (#4787)
if (ImGuiTable* table = g.CurrentTable)
{
x1 = table->Columns[table->CurrentColumn].MinX;
x2 = table->Columns[table->CurrentColumn].MaxX;
}
ImGuiOldColumns* columns = (flags & ImGuiSeparatorFlags_SpanAllColumns) ? window->DC.CurrentColumns : NULL;
if (columns)
PushColumnsBackground();
// We don't provide our width to the layout so that it doesn't get feed back into AutoFit
// FIXME: This prevents ->CursorMaxPos based bounding box evaluation from working (e.g. TableEndCell)
const float thickness_for_layout = (thickness == 1.0f) ? 0.0f : thickness; // FIXME: See 1.70/1.71 Separator() change: makes legacy 1-px separator not affect layout yet. Should change.
const ImRect bb(ImVec2(x1, window->DC.CursorPos.y), ImVec2(x2, window->DC.CursorPos.y + thickness));
ItemSize(ImVec2(0.0f, thickness_for_layout));
const bool item_visible = ItemAdd(bb, 0);
if (item_visible)
{
// Draw
window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_Separator));
if (g.LogEnabled)
LogRenderedText(&bb.Min, "--------------------------------\n");
}
if (columns)
{
PopColumnsBackground();
columns->LineMinY = window->DC.CursorPos.y;
}
}
}
void ImGui::Separator()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
// Those flags should eventually be overridable by the user
ImGuiSeparatorFlags flags = (window->DC.LayoutType == ImGuiLayoutType_Horizontal) ? ImGuiSeparatorFlags_Vertical : ImGuiSeparatorFlags_Horizontal;
flags |= ImGuiSeparatorFlags_SpanAllColumns; // NB: this only applies to legacy Columns() api as they relied on Separator() a lot.
SeparatorEx(flags);
}
void ImGui::SeparatorTextEx(ImGuiID id, const char* label, const char* label_end, float extra_w)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiStyle& style = g.Style;
const ImVec2 label_size = CalcTextSize(label, label_end, false);
const ImVec2 pos = window->DC.CursorPos;
const ImVec2 padding = style.SeparatorTextPadding;
const float separator_thickness = style.SeparatorTextBorderSize;
const ImVec2 min_size(label_size.x + extra_w + padding.x * 2.0f, ImMax(label_size.y + padding.y * 2.0f, separator_thickness));
const ImRect bb(pos, ImVec2(window->WorkRect.Max.x, pos.y + min_size.y));
const float text_baseline_y = ImFloor((bb.GetHeight() - label_size.y) * style.SeparatorTextAlign.y + 0.99999f); //ImMax(padding.y, ImFloor((style.SeparatorTextSize - label_size.y) * 0.5f));
ItemSize(min_size, text_baseline_y);
if (!ItemAdd(bb, id))
return;
const float sep1_x1 = pos.x;
const float sep2_x2 = bb.Max.x;
const float seps_y = ImFloor((bb.Min.y + bb.Max.y) * 0.5f + 0.99999f);
const float label_avail_w = ImMax(0.0f, sep2_x2 - sep1_x1 - padding.x * 2.0f);
const ImVec2 label_pos(pos.x + padding.x + ImMax(0.0f, (label_avail_w - label_size.x - extra_w) * style.SeparatorTextAlign.x), pos.y + text_baseline_y); // FIXME-ALIGN
// This allows using SameLine() to position something in the 'extra_w'
window->DC.CursorPosPrevLine.x = label_pos.x + label_size.x;
const ImU32 separator_col = GetColorU32(ImGuiCol_Separator);
if (label_size.x > 0.0f)
{
const float sep1_x2 = label_pos.x - style.ItemSpacing.x;
const float sep2_x1 = label_pos.x + label_size.x + extra_w + style.ItemSpacing.x;
if (sep1_x2 > sep1_x1 && separator_thickness > 0.0f)
window->DrawList->AddLine(ImVec2(sep1_x1, seps_y), ImVec2(sep1_x2, seps_y), separator_col, separator_thickness);
if (sep2_x2 > sep2_x1 && separator_thickness > 0.0f)
window->DrawList->AddLine(ImVec2(sep2_x1, seps_y), ImVec2(sep2_x2, seps_y), separator_col, separator_thickness);
if (g.LogEnabled)
LogSetNextTextDecoration("---", NULL);
RenderTextEllipsis(window->DrawList, label_pos, ImVec2(bb.Max.x, bb.Max.y + style.ItemSpacing.y), bb.Max.x, bb.Max.x, label, label_end, &label_size);
}
else
{
if (g.LogEnabled)
LogText("---");
if (separator_thickness > 0.0f)
window->DrawList->AddLine(ImVec2(sep1_x1, seps_y), ImVec2(sep2_x2, seps_y), separator_col, separator_thickness);
}
}
void ImGui::SeparatorText(const char* label)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
// The SeparatorText() vs SeparatorTextEx() distinction is designed to be considerate that we may want:
// - allow headers to be draggable items (would require a stable ID + a noticeable highlight)
// - this high-level entry point to allow formatting? (may require ID separate from formatted string)
// - because of this we probably can't turn 'const char* label' into 'const char* fmt, ...'
// Otherwise, we can decide that users wanting to drag this would layout a dedicated drag-item,
// and then we can turn this into a format function.
SeparatorTextEx(0, label, FindRenderedTextEnd(label), 0.0f);
}
// Using 'hover_visibility_delay' allows us to hide the highlight and mouse cursor for a short time, which can be convenient to reduce visual noise.
bool ImGui::SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend, float hover_visibility_delay, ImU32 bg_col)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (!ItemAdd(bb, id, NULL, ImGuiItemFlags_NoNav))
return false;
bool hovered, held;
ImRect bb_interact = bb;
bb_interact.Expand(axis == ImGuiAxis_Y ? ImVec2(0.0f, hover_extend) : ImVec2(hover_extend, 0.0f));
ButtonBehavior(bb_interact, id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap);
if (hovered)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredRect; // for IsItemHovered(), because bb_interact is larger than bb
if (g.ActiveId != id)
SetItemAllowOverlap();
if (held || (hovered && g.HoveredIdPreviousFrame == id && g.HoveredIdTimer >= hover_visibility_delay))
SetMouseCursor(axis == ImGuiAxis_Y ? ImGuiMouseCursor_ResizeNS : ImGuiMouseCursor_ResizeEW);
ImRect bb_render = bb;
if (held)
{
ImVec2 mouse_delta_2d = g.IO.MousePos - g.ActiveIdClickOffset - bb_interact.Min;
float mouse_delta = (axis == ImGuiAxis_Y) ? mouse_delta_2d.y : mouse_delta_2d.x;
// Minimum pane size
float size_1_maximum_delta = ImMax(0.0f, *size1 - min_size1);
float size_2_maximum_delta = ImMax(0.0f, *size2 - min_size2);
if (mouse_delta < -size_1_maximum_delta)
mouse_delta = -size_1_maximum_delta;
if (mouse_delta > size_2_maximum_delta)
mouse_delta = size_2_maximum_delta;
// Apply resize
if (mouse_delta != 0.0f)
{
if (mouse_delta < 0.0f)
IM_ASSERT(*size1 + mouse_delta >= min_size1);
if (mouse_delta > 0.0f)
IM_ASSERT(*size2 - mouse_delta >= min_size2);
*size1 += mouse_delta;
*size2 -= mouse_delta;
bb_render.Translate((axis == ImGuiAxis_X) ? ImVec2(mouse_delta, 0.0f) : ImVec2(0.0f, mouse_delta));
MarkItemEdited(id);
}
}
// Render at new position
if (bg_col & IM_COL32_A_MASK)
window->DrawList->AddRectFilled(bb_render.Min, bb_render.Max, bg_col, 0.0f);
const ImU32 col = GetColorU32(held ? ImGuiCol_SeparatorActive : (hovered && g.HoveredIdTimer >= hover_visibility_delay) ? ImGuiCol_SeparatorHovered : ImGuiCol_Separator);
window->DrawList->AddRectFilled(bb_render.Min, bb_render.Max, col, 0.0f);
return held;
}
static int IMGUI_CDECL ShrinkWidthItemComparer(const void* lhs, const void* rhs)
{
const ImGuiShrinkWidthItem* a = (const ImGuiShrinkWidthItem*)lhs;
const ImGuiShrinkWidthItem* b = (const ImGuiShrinkWidthItem*)rhs;
if (int d = (int)(b->Width - a->Width))
return d;
return (b->Index - a->Index);
}
// Shrink excess width from a set of item, by removing width from the larger items first.
// Set items Width to -1.0f to disable shrinking this item.
void ImGui::ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess)
{
if (count == 1)
{
if (items[0].Width >= 0.0f)
items[0].Width = ImMax(items[0].Width - width_excess, 1.0f);
return;
}
ImQsort(items, (size_t)count, sizeof(ImGuiShrinkWidthItem), ShrinkWidthItemComparer);
int count_same_width = 1;
while (width_excess > 0.0f && count_same_width < count)
{
while (count_same_width < count && items[0].Width <= items[count_same_width].Width)
count_same_width++;
float max_width_to_remove_per_item = (count_same_width < count && items[count_same_width].Width >= 0.0f) ? (items[0].Width - items[count_same_width].Width) : (items[0].Width - 1.0f);
if (max_width_to_remove_per_item <= 0.0f)
break;
float width_to_remove_per_item = ImMin(width_excess / count_same_width, max_width_to_remove_per_item);
for (int item_n = 0; item_n < count_same_width; item_n++)
items[item_n].Width -= width_to_remove_per_item;
width_excess -= width_to_remove_per_item * count_same_width;
}
// Round width and redistribute remainder
// Ensure that e.g. the right-most tab of a shrunk tab-bar always reaches exactly at the same distance from the right-most edge of the tab bar separator.
width_excess = 0.0f;
for (int n = 0; n < count; n++)
{
float width_rounded = ImFloor(items[n].Width);
width_excess += items[n].Width - width_rounded;
items[n].Width = width_rounded;
}
while (width_excess > 0.0f)
for (int n = 0; n < count && width_excess > 0.0f; n++)
{
float width_to_add = ImMin(items[n].InitialWidth - items[n].Width, 1.0f);
items[n].Width += width_to_add;
width_excess -= width_to_add;
}
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: ComboBox
//-------------------------------------------------------------------------
// - CalcMaxPopupHeightFromItemCount() [Internal]
// - BeginCombo()
// - BeginComboPopup() [Internal]
// - EndCombo()
// - BeginComboPreview() [Internal]
// - EndComboPreview() [Internal]
// - Combo()
//-------------------------------------------------------------------------
static float CalcMaxPopupHeightFromItemCount(int items_count)
{
ImGuiContext& g = *GImGui;
if (items_count <= 0)
return FLT_MAX;
return (g.FontSize + g.Style.ItemSpacing.y) * items_count - g.Style.ItemSpacing.y + (g.Style.WindowPadding.y * 2);
}
bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
ImGuiNextWindowDataFlags backup_next_window_data_flags = g.NextWindowData.Flags;
g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
IM_ASSERT((flags & (ImGuiComboFlags_NoArrowButton | ImGuiComboFlags_NoPreview)) != (ImGuiComboFlags_NoArrowButton | ImGuiComboFlags_NoPreview)); // Can't use both flags together
const float arrow_size = (flags & ImGuiComboFlags_NoArrowButton) ? 0.0f : GetFrameHeight();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const float w = (flags & ImGuiComboFlags_NoPreview) ? arrow_size : CalcItemWidth();
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
const ImRect total_bb(bb.Min, bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &bb))
return false;
// Open on click
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held);
const ImGuiID popup_id = ImHashStr("##ComboPopup", 0, id);
bool popup_open = IsPopupOpen(popup_id, ImGuiPopupFlags_None);
if (pressed && !popup_open)
{
OpenPopupEx(popup_id, ImGuiPopupFlags_None);
popup_open = true;
}
// Render shape
const ImU32 frame_col = GetColorU32(hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
const float value_x2 = ImMax(bb.Min.x, bb.Max.x - arrow_size);
RenderNavHighlight(bb, id);
if (!(flags & ImGuiComboFlags_NoPreview))
window->DrawList->AddRectFilled(bb.Min, ImVec2(value_x2, bb.Max.y), frame_col, style.FrameRounding, (flags & ImGuiComboFlags_NoArrowButton) ? ImDrawFlags_RoundCornersAll : ImDrawFlags_RoundCornersLeft);
if (!(flags & ImGuiComboFlags_NoArrowButton))
{
ImU32 bg_col = GetColorU32((popup_open || hovered) ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
ImU32 text_col = GetColorU32(ImGuiCol_Text);
window->DrawList->AddRectFilled(ImVec2(value_x2, bb.Min.y), bb.Max, bg_col, style.FrameRounding, (w <= arrow_size) ? ImDrawFlags_RoundCornersAll : ImDrawFlags_RoundCornersRight);
if (value_x2 + arrow_size - style.FramePadding.x <= bb.Max.x)
RenderArrow(window->DrawList, ImVec2(value_x2 + style.FramePadding.y, bb.Min.y + style.FramePadding.y), text_col, ImGuiDir_Down, 1.0f);
}
RenderFrameBorder(bb.Min, bb.Max, style.FrameRounding);
// Custom preview
if (flags & ImGuiComboFlags_CustomPreview)
{
g.ComboPreviewData.PreviewRect = ImRect(bb.Min.x, bb.Min.y, value_x2, bb.Max.y);
IM_ASSERT(preview_value == NULL || preview_value[0] == 0);
preview_value = NULL;
}
// Render preview and label
if (preview_value != NULL && !(flags & ImGuiComboFlags_NoPreview))
{
if (g.LogEnabled)
LogSetNextTextDecoration("{", "}");
RenderTextClipped(bb.Min + style.FramePadding, ImVec2(value_x2, bb.Max.y), preview_value, NULL, NULL);
}
if (label_size.x > 0)
RenderText(ImVec2(bb.Max.x + style.ItemInnerSpacing.x, bb.Min.y + style.FramePadding.y), label);
if (!popup_open)
return false;
g.NextWindowData.Flags = backup_next_window_data_flags;
return BeginComboPopup(popup_id, bb, flags);
}
bool ImGui::BeginComboPopup(ImGuiID popup_id, const ImRect& bb, ImGuiComboFlags flags)
{
ImGuiContext& g = *GImGui;
if (!IsPopupOpen(popup_id, ImGuiPopupFlags_None))
{
g.NextWindowData.ClearFlags();
return false;
}
// Set popup size
float w = bb.GetWidth();
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSizeConstraint)
{
g.NextWindowData.SizeConstraintRect.Min.x = ImMax(g.NextWindowData.SizeConstraintRect.Min.x, w);
}
else
{
if ((flags & ImGuiComboFlags_HeightMask_) == 0)
flags |= ImGuiComboFlags_HeightRegular;
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiComboFlags_HeightMask_)); // Only one
int popup_max_height_in_items = -1;
if (flags & ImGuiComboFlags_HeightRegular) popup_max_height_in_items = 8;
else if (flags & ImGuiComboFlags_HeightSmall) popup_max_height_in_items = 4;
else if (flags & ImGuiComboFlags_HeightLarge) popup_max_height_in_items = 20;
ImVec2 constraint_min(0.0f, 0.0f), constraint_max(FLT_MAX, FLT_MAX);
if ((g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize) == 0 || g.NextWindowData.SizeVal.x <= 0.0f) // Don't apply constraints if user specified a size
constraint_min.x = w;
if ((g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize) == 0 || g.NextWindowData.SizeVal.y <= 0.0f)
constraint_max.y = CalcMaxPopupHeightFromItemCount(popup_max_height_in_items);
SetNextWindowSizeConstraints(constraint_min, constraint_max);
}
// This is essentially a specialized version of BeginPopupEx()
char name[16];
ImFormatString(name, IM_ARRAYSIZE(name), "##Combo_%02d", g.BeginPopupStack.Size); // Recycle windows based on depth
// Set position given a custom constraint (peak into expected window size so we can position it)
// FIXME: This might be easier to express with an hypothetical SetNextWindowPosConstraints() function?
// FIXME: This might be moved to Begin() or at least around the same spot where Tooltips and other Popups are calling FindBestWindowPosForPopupEx()?
if (ImGuiWindow* popup_window = FindWindowByName(name))
if (popup_window->WasActive)
{
// Always override 'AutoPosLastDirection' to not leave a chance for a past value to affect us.
ImVec2 size_expected = CalcWindowNextAutoFitSize(popup_window);
popup_window->AutoPosLastDirection = (flags & ImGuiComboFlags_PopupAlignLeft) ? ImGuiDir_Left : ImGuiDir_Down; // Left = "Below, Toward Left", Down = "Below, Toward Right (default)"
ImRect r_outer = GetPopupAllowedExtentRect(popup_window);
ImVec2 pos = FindBestWindowPosForPopupEx(bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, r_outer, bb, ImGuiPopupPositionPolicy_ComboBox);
SetNextWindowPos(pos);
}
// We don't use BeginPopupEx() solely because we have a custom name string, which we could make an argument to BeginPopupEx()
ImGuiWindowFlags window_flags = ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_Popup | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoMove;
PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(g.Style.FramePadding.x, g.Style.WindowPadding.y)); // Horizontally align ourselves with the framed text
bool ret = Begin(name, NULL, window_flags);
PopStyleVar();
if (!ret)
{
EndPopup();
IM_ASSERT(0); // This should never happen as we tested for IsPopupOpen() above
return false;
}
return true;
}
void ImGui::EndCombo()
{
EndPopup();
}
// Call directly after the BeginCombo/EndCombo block. The preview is designed to only host non-interactive elements
// (Experimental, see GitHub issues: #1658, #4168)
bool ImGui::BeginComboPreview()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiComboPreviewData* preview_data = &g.ComboPreviewData;
if (window->SkipItems || !(g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Visible))
return false;
IM_ASSERT(g.LastItemData.Rect.Min.x == preview_data->PreviewRect.Min.x && g.LastItemData.Rect.Min.y == preview_data->PreviewRect.Min.y); // Didn't call after BeginCombo/EndCombo block or forgot to pass ImGuiComboFlags_CustomPreview flag?
if (!window->ClipRect.Contains(preview_data->PreviewRect)) // Narrower test (optional)
return false;
// FIXME: This could be contained in a PushWorkRect() api
preview_data->BackupCursorPos = window->DC.CursorPos;
preview_data->BackupCursorMaxPos = window->DC.CursorMaxPos;
preview_data->BackupCursorPosPrevLine = window->DC.CursorPosPrevLine;
preview_data->BackupPrevLineTextBaseOffset = window->DC.PrevLineTextBaseOffset;
preview_data->BackupLayout = window->DC.LayoutType;
window->DC.CursorPos = preview_data->PreviewRect.Min + g.Style.FramePadding;
window->DC.CursorMaxPos = window->DC.CursorPos;
window->DC.LayoutType = ImGuiLayoutType_Horizontal;
window->DC.IsSameLine = false;
PushClipRect(preview_data->PreviewRect.Min, preview_data->PreviewRect.Max, true);
return true;
}
void ImGui::EndComboPreview()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiComboPreviewData* preview_data = &g.ComboPreviewData;
// FIXME: Using CursorMaxPos approximation instead of correct AABB which we will store in ImDrawCmd in the future
ImDrawList* draw_list = window->DrawList;
if (window->DC.CursorMaxPos.x < preview_data->PreviewRect.Max.x && window->DC.CursorMaxPos.y < preview_data->PreviewRect.Max.y)
if (draw_list->CmdBuffer.Size > 1) // Unlikely case that the PushClipRect() didn't create a command
{
draw_list->_CmdHeader.ClipRect = draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ClipRect = draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 2].ClipRect;
draw_list->_TryMergeDrawCmds();
}
PopClipRect();
window->DC.CursorPos = preview_data->BackupCursorPos;
window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, preview_data->BackupCursorMaxPos);
window->DC.CursorPosPrevLine = preview_data->BackupCursorPosPrevLine;
window->DC.PrevLineTextBaseOffset = preview_data->BackupPrevLineTextBaseOffset;
window->DC.LayoutType = preview_data->BackupLayout;
window->DC.IsSameLine = false;
preview_data->PreviewRect = ImRect();
}
// Getter for the old Combo() API: const char*[]
static bool Items_ArrayGetter(void* data, int idx, const char** out_text)
{
const char* const* items = (const char* const*)data;
if (out_text)
*out_text = items[idx];
return true;
}
// Getter for the old Combo() API: "item1\0item2\0item3\0"
static bool Items_SingleStringGetter(void* data, int idx, const char** out_text)
{
// FIXME-OPT: we could pre-compute the indices to fasten this. But only 1 active combo means the waste is limited.
const char* items_separated_by_zeros = (const char*)data;
int items_count = 0;
const char* p = items_separated_by_zeros;
while (*p)
{
if (idx == items_count)
break;
p += strlen(p) + 1;
items_count++;
}
if (!*p)
return false;
if (out_text)
*out_text = p;
return true;
}
// Old API, prefer using BeginCombo() nowadays if you can.
bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int popup_max_height_in_items)
{
ImGuiContext& g = *GImGui;
// Call the getter to obtain the preview string which is a parameter to BeginCombo()
const char* preview_value = NULL;
if (*current_item >= 0 && *current_item < items_count)
items_getter(data, *current_item, &preview_value);
// The old Combo() API exposed "popup_max_height_in_items". The new more general BeginCombo() API doesn't have/need it, but we emulate it here.
if (popup_max_height_in_items != -1 && !(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSizeConstraint))
SetNextWindowSizeConstraints(ImVec2(0, 0), ImVec2(FLT_MAX, CalcMaxPopupHeightFromItemCount(popup_max_height_in_items)));
if (!BeginCombo(label, preview_value, ImGuiComboFlags_None))
return false;
// Display items
// FIXME-OPT: Use clipper (but we need to disable it on the appearing frame to make sure our call to SetItemDefaultFocus() is processed)
bool value_changed = false;
for (int i = 0; i < items_count; i++)
{
PushID(i);
const bool item_selected = (i == *current_item);
const char* item_text;
if (!items_getter(data, i, &item_text))
item_text = "*Unknown item*";
if (Selectable(item_text, item_selected))
{
value_changed = true;
*current_item = i;
}
if (item_selected)
SetItemDefaultFocus();
PopID();
}
EndCombo();
if (value_changed)
MarkItemEdited(g.LastItemData.ID);
return value_changed;
}
// Combo box helper allowing to pass an array of strings.
bool ImGui::Combo(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items)
{
const bool value_changed = Combo(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_in_items);
return value_changed;
}
// Combo box helper allowing to pass all items in a single string literal holding multiple zero-terminated items "item1\0item2\0"
bool ImGui::Combo(const char* label, int* current_item, const char* items_separated_by_zeros, int height_in_items)
{
int items_count = 0;
const char* p = items_separated_by_zeros; // FIXME-OPT: Avoid computing this, or at least only when combo is open
while (*p)
{
p += strlen(p) + 1;
items_count++;
}
bool value_changed = Combo(label, current_item, Items_SingleStringGetter, (void*)items_separated_by_zeros, items_count, height_in_items);
return value_changed;
}
//-------------------------------------------------------------------------
// [SECTION] Data Type and Data Formatting Helpers [Internal]
//-------------------------------------------------------------------------
// - DataTypeGetInfo()
// - DataTypeFormatString()
// - DataTypeApplyOp()
// - DataTypeApplyOpFromText()
// - DataTypeCompare()
// - DataTypeClamp()
// - GetMinimumStepAtDecimalPrecision
// - RoundScalarWithFormat<>()
//-------------------------------------------------------------------------
static const ImGuiDataTypeInfo GDataTypeInfo[] =
{
{ sizeof(char), "S8", "%d", "%d" }, // ImGuiDataType_S8
{ sizeof(unsigned char), "U8", "%u", "%u" },
{ sizeof(short), "S16", "%d", "%d" }, // ImGuiDataType_S16
{ sizeof(unsigned short), "U16", "%u", "%u" },
{ sizeof(int), "S32", "%d", "%d" }, // ImGuiDataType_S32
{ sizeof(unsigned int), "U32", "%u", "%u" },
#ifdef _MSC_VER
{ sizeof(ImS64), "S64", "%I64d","%I64d" }, // ImGuiDataType_S64
{ sizeof(ImU64), "U64", "%I64u","%I64u" },
#else
{ sizeof(ImS64), "S64", "%lld", "%lld" }, // ImGuiDataType_S64
{ sizeof(ImU64), "U64", "%llu", "%llu" },
#endif
{ sizeof(float), "float", "%.3f","%f" }, // ImGuiDataType_Float (float are promoted to double in va_arg)
{ sizeof(double), "double","%f", "%lf" }, // ImGuiDataType_Double
};
IM_STATIC_ASSERT(IM_ARRAYSIZE(GDataTypeInfo) == ImGuiDataType_COUNT);
const ImGuiDataTypeInfo* ImGui::DataTypeGetInfo(ImGuiDataType data_type)
{
IM_ASSERT(data_type >= 0 && data_type < ImGuiDataType_COUNT);
return &GDataTypeInfo[data_type];
}
int ImGui::DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format)
{
// Signedness doesn't matter when pushing integer arguments
if (data_type == ImGuiDataType_S32 || data_type == ImGuiDataType_U32)
return ImFormatString(buf, buf_size, format, *(const ImU32*)p_data);
if (data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64)
return ImFormatString(buf, buf_size, format, *(const ImU64*)p_data);
if (data_type == ImGuiDataType_Float)
return ImFormatString(buf, buf_size, format, *(const float*)p_data);
if (data_type == ImGuiDataType_Double)
return ImFormatString(buf, buf_size, format, *(const double*)p_data);
if (data_type == ImGuiDataType_S8)
return ImFormatString(buf, buf_size, format, *(const ImS8*)p_data);
if (data_type == ImGuiDataType_U8)
return ImFormatString(buf, buf_size, format, *(const ImU8*)p_data);
if (data_type == ImGuiDataType_S16)
return ImFormatString(buf, buf_size, format, *(const ImS16*)p_data);
if (data_type == ImGuiDataType_U16)
return ImFormatString(buf, buf_size, format, *(const ImU16*)p_data);
IM_ASSERT(0);
return 0;
}
void ImGui::DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg1, const void* arg2)
{
IM_ASSERT(op == '+' || op == '-');
switch (data_type)
{
case ImGuiDataType_S8:
if (op == '+') { *(ImS8*)output = ImAddClampOverflow(*(const ImS8*)arg1, *(const ImS8*)arg2, IM_S8_MIN, IM_S8_MAX); }
if (op == '-') { *(ImS8*)output = ImSubClampOverflow(*(const ImS8*)arg1, *(const ImS8*)arg2, IM_S8_MIN, IM_S8_MAX); }
return;
case ImGuiDataType_U8:
if (op == '+') { *(ImU8*)output = ImAddClampOverflow(*(const ImU8*)arg1, *(const ImU8*)arg2, IM_U8_MIN, IM_U8_MAX); }
if (op == '-') { *(ImU8*)output = ImSubClampOverflow(*(const ImU8*)arg1, *(const ImU8*)arg2, IM_U8_MIN, IM_U8_MAX); }
return;
case ImGuiDataType_S16:
if (op == '+') { *(ImS16*)output = ImAddClampOverflow(*(const ImS16*)arg1, *(const ImS16*)arg2, IM_S16_MIN, IM_S16_MAX); }
if (op == '-') { *(ImS16*)output = ImSubClampOverflow(*(const ImS16*)arg1, *(const ImS16*)arg2, IM_S16_MIN, IM_S16_MAX); }
return;
case ImGuiDataType_U16:
if (op == '+') { *(ImU16*)output = ImAddClampOverflow(*(const ImU16*)arg1, *(const ImU16*)arg2, IM_U16_MIN, IM_U16_MAX); }
if (op == '-') { *(ImU16*)output = ImSubClampOverflow(*(const ImU16*)arg1, *(const ImU16*)arg2, IM_U16_MIN, IM_U16_MAX); }
return;
case ImGuiDataType_S32:
if (op == '+') { *(ImS32*)output = ImAddClampOverflow(*(const ImS32*)arg1, *(const ImS32*)arg2, IM_S32_MIN, IM_S32_MAX); }
if (op == '-') { *(ImS32*)output = ImSubClampOverflow(*(const ImS32*)arg1, *(const ImS32*)arg2, IM_S32_MIN, IM_S32_MAX); }
return;
case ImGuiDataType_U32:
if (op == '+') { *(ImU32*)output = ImAddClampOverflow(*(const ImU32*)arg1, *(const ImU32*)arg2, IM_U32_MIN, IM_U32_MAX); }
if (op == '-') { *(ImU32*)output = ImSubClampOverflow(*(const ImU32*)arg1, *(const ImU32*)arg2, IM_U32_MIN, IM_U32_MAX); }
return;
case ImGuiDataType_S64:
if (op == '+') { *(ImS64*)output = ImAddClampOverflow(*(const ImS64*)arg1, *(const ImS64*)arg2, IM_S64_MIN, IM_S64_MAX); }
if (op == '-') { *(ImS64*)output = ImSubClampOverflow(*(const ImS64*)arg1, *(const ImS64*)arg2, IM_S64_MIN, IM_S64_MAX); }
return;
case ImGuiDataType_U64:
if (op == '+') { *(ImU64*)output = ImAddClampOverflow(*(const ImU64*)arg1, *(const ImU64*)arg2, IM_U64_MIN, IM_U64_MAX); }
if (op == '-') { *(ImU64*)output = ImSubClampOverflow(*(const ImU64*)arg1, *(const ImU64*)arg2, IM_U64_MIN, IM_U64_MAX); }
return;
case ImGuiDataType_Float:
if (op == '+') { *(float*)output = *(const float*)arg1 + *(const float*)arg2; }
if (op == '-') { *(float*)output = *(const float*)arg1 - *(const float*)arg2; }
return;
case ImGuiDataType_Double:
if (op == '+') { *(double*)output = *(const double*)arg1 + *(const double*)arg2; }
if (op == '-') { *(double*)output = *(const double*)arg1 - *(const double*)arg2; }
return;
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
}
// User can input math operators (e.g. +100) to edit a numerical values.
// NB: This is _not_ a full expression evaluator. We should probably add one and replace this dumb mess..
bool ImGui::DataTypeApplyFromText(const char* buf, ImGuiDataType data_type, void* p_data, const char* format)
{
while (ImCharIsBlankA(*buf))
buf++;
if (!buf[0])
return false;
// Copy the value in an opaque buffer so we can compare at the end of the function if it changed at all.
const ImGuiDataTypeInfo* type_info = DataTypeGetInfo(data_type);
ImGuiDataTypeTempStorage data_backup;
memcpy(&data_backup, p_data, type_info->Size);
// Sanitize format
// For float/double we have to ignore format with precision (e.g. "%.2f") because sscanf doesn't take them in, so force them into %f and %lf
char format_sanitized[32];
if (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double)
format = type_info->ScanFmt;
else
format = ImParseFormatSanitizeForScanning(format, format_sanitized, IM_ARRAYSIZE(format_sanitized));
// Small types need a 32-bit buffer to receive the result from scanf()
int v32 = 0;
if (sscanf(buf, format, type_info->Size >= 4 ? p_data : &v32) < 1)
return false;
if (type_info->Size < 4)
{
if (data_type == ImGuiDataType_S8)
*(ImS8*)p_data = (ImS8)ImClamp(v32, (int)IM_S8_MIN, (int)IM_S8_MAX);
else if (data_type == ImGuiDataType_U8)
*(ImU8*)p_data = (ImU8)ImClamp(v32, (int)IM_U8_MIN, (int)IM_U8_MAX);
else if (data_type == ImGuiDataType_S16)
*(ImS16*)p_data = (ImS16)ImClamp(v32, (int)IM_S16_MIN, (int)IM_S16_MAX);
else if (data_type == ImGuiDataType_U16)
*(ImU16*)p_data = (ImU16)ImClamp(v32, (int)IM_U16_MIN, (int)IM_U16_MAX);
else
IM_ASSERT(0);
}
return memcmp(&data_backup, p_data, type_info->Size) != 0;
}
template<typename T>
static int DataTypeCompareT(const T* lhs, const T* rhs)
{
if (*lhs < *rhs) return -1;
if (*lhs > *rhs) return +1;
return 0;
}
int ImGui::DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2)
{
switch (data_type)
{
case ImGuiDataType_S8: return DataTypeCompareT<ImS8 >((const ImS8* )arg_1, (const ImS8* )arg_2);
case ImGuiDataType_U8: return DataTypeCompareT<ImU8 >((const ImU8* )arg_1, (const ImU8* )arg_2);
case ImGuiDataType_S16: return DataTypeCompareT<ImS16 >((const ImS16* )arg_1, (const ImS16* )arg_2);
case ImGuiDataType_U16: return DataTypeCompareT<ImU16 >((const ImU16* )arg_1, (const ImU16* )arg_2);
case ImGuiDataType_S32: return DataTypeCompareT<ImS32 >((const ImS32* )arg_1, (const ImS32* )arg_2);
case ImGuiDataType_U32: return DataTypeCompareT<ImU32 >((const ImU32* )arg_1, (const ImU32* )arg_2);
case ImGuiDataType_S64: return DataTypeCompareT<ImS64 >((const ImS64* )arg_1, (const ImS64* )arg_2);
case ImGuiDataType_U64: return DataTypeCompareT<ImU64 >((const ImU64* )arg_1, (const ImU64* )arg_2);
case ImGuiDataType_Float: return DataTypeCompareT<float >((const float* )arg_1, (const float* )arg_2);
case ImGuiDataType_Double: return DataTypeCompareT<double>((const double*)arg_1, (const double*)arg_2);
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
return 0;
}
template<typename T>
static bool DataTypeClampT(T* v, const T* v_min, const T* v_max)
{
// Clamp, both sides are optional, return true if modified
if (v_min && *v < *v_min) { *v = *v_min; return true; }
if (v_max && *v > *v_max) { *v = *v_max; return true; }
return false;
}
bool ImGui::DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max)
{
switch (data_type)
{
case ImGuiDataType_S8: return DataTypeClampT<ImS8 >((ImS8* )p_data, (const ImS8* )p_min, (const ImS8* )p_max);
case ImGuiDataType_U8: return DataTypeClampT<ImU8 >((ImU8* )p_data, (const ImU8* )p_min, (const ImU8* )p_max);
case ImGuiDataType_S16: return DataTypeClampT<ImS16 >((ImS16* )p_data, (const ImS16* )p_min, (const ImS16* )p_max);
case ImGuiDataType_U16: return DataTypeClampT<ImU16 >((ImU16* )p_data, (const ImU16* )p_min, (const ImU16* )p_max);
case ImGuiDataType_S32: return DataTypeClampT<ImS32 >((ImS32* )p_data, (const ImS32* )p_min, (const ImS32* )p_max);
case ImGuiDataType_U32: return DataTypeClampT<ImU32 >((ImU32* )p_data, (const ImU32* )p_min, (const ImU32* )p_max);
case ImGuiDataType_S64: return DataTypeClampT<ImS64 >((ImS64* )p_data, (const ImS64* )p_min, (const ImS64* )p_max);
case ImGuiDataType_U64: return DataTypeClampT<ImU64 >((ImU64* )p_data, (const ImU64* )p_min, (const ImU64* )p_max);
case ImGuiDataType_Float: return DataTypeClampT<float >((float* )p_data, (const float* )p_min, (const float* )p_max);
case ImGuiDataType_Double: return DataTypeClampT<double>((double*)p_data, (const double*)p_min, (const double*)p_max);
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
return false;
}
static float GetMinimumStepAtDecimalPrecision(int decimal_precision)
{
static const float min_steps[10] = { 1.0f, 0.1f, 0.01f, 0.001f, 0.0001f, 0.00001f, 0.000001f, 0.0000001f, 0.00000001f, 0.000000001f };
if (decimal_precision < 0)
return FLT_MIN;
return (decimal_precision < IM_ARRAYSIZE(min_steps)) ? min_steps[decimal_precision] : ImPow(10.0f, (float)-decimal_precision);
}
template<typename TYPE>
TYPE ImGui::RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, TYPE v)
{
IM_UNUSED(data_type);
IM_ASSERT(data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double);
const char* fmt_start = ImParseFormatFindStart(format);
if (fmt_start[0] != '%' || fmt_start[1] == '%') // Don't apply if the value is not visible in the format string
return v;
// Sanitize format
char fmt_sanitized[32];
ImParseFormatSanitizeForPrinting(fmt_start, fmt_sanitized, IM_ARRAYSIZE(fmt_sanitized));
fmt_start = fmt_sanitized;
// Format value with our rounding, and read back
char v_str[64];
ImFormatString(v_str, IM_ARRAYSIZE(v_str), fmt_start, v);
const char* p = v_str;
while (*p == ' ')
p++;
v = (TYPE)ImAtof(p);
return v;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: DragScalar, DragFloat, DragInt, etc.
//-------------------------------------------------------------------------
// - DragBehaviorT<>() [Internal]
// - DragBehavior() [Internal]
// - DragScalar()
// - DragScalarN()
// - DragFloat()
// - DragFloat2()
// - DragFloat3()
// - DragFloat4()
// - DragFloatRange2()
// - DragInt()
// - DragInt2()
// - DragInt3()
// - DragInt4()
// - DragIntRange2()
//-------------------------------------------------------------------------
// This is called by DragBehavior() when the widget is active (held by mouse or being manipulated with Nav controls)
template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const TYPE v_min, const TYPE v_max, const char* format, ImGuiSliderFlags flags)
{
ImGuiContext& g = *GImGui;
const ImGuiAxis axis = (flags & ImGuiSliderFlags_Vertical) ? ImGuiAxis_Y : ImGuiAxis_X;
const bool is_clamped = (v_min < v_max);
const bool is_logarithmic = (flags & ImGuiSliderFlags_Logarithmic) != 0;
const bool is_floating_point = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
// Default tweak speed
if (v_speed == 0.0f && is_clamped && (v_max - v_min < FLT_MAX))
v_speed = (float)((v_max - v_min) * g.DragSpeedDefaultRatio);
// Inputs accumulates into g.DragCurrentAccum, which is flushed into the current value as soon as it makes a difference with our precision settings
float adjust_delta = 0.0f;
if (g.ActiveIdSource == ImGuiInputSource_Mouse && IsMousePosValid() && IsMouseDragPastThreshold(0, g.IO.MouseDragThreshold * DRAG_MOUSE_THRESHOLD_FACTOR))
{
adjust_delta = g.IO.MouseDelta[axis];
if (g.IO.KeyAlt)
adjust_delta *= 1.0f / 100.0f;
if (g.IO.KeyShift)
adjust_delta *= 10.0f;
}
else if (g.ActiveIdSource == ImGuiInputSource_Nav)
{
const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 0;
const bool tweak_slow = IsKeyDown((g.NavInputSource == ImGuiInputSource_Gamepad) ? ImGuiKey_NavGamepadTweakSlow : ImGuiKey_NavKeyboardTweakSlow);
const bool tweak_fast = IsKeyDown((g.NavInputSource == ImGuiInputSource_Gamepad) ? ImGuiKey_NavGamepadTweakFast : ImGuiKey_NavKeyboardTweakFast);
const float tweak_factor = tweak_slow ? 1.0f / 1.0f : tweak_fast ? 10.0f : 1.0f;
adjust_delta = GetNavTweakPressedAmount(axis) * tweak_factor;
v_speed = ImMax(v_speed, GetMinimumStepAtDecimalPrecision(decimal_precision));
}
adjust_delta *= v_speed;
// For vertical drag we currently assume that Up=higher value (like we do with vertical sliders). This may become a parameter.
if (axis == ImGuiAxis_Y)
adjust_delta = -adjust_delta;
// For logarithmic use our range is effectively 0..1 so scale the delta into that range
if (is_logarithmic && (v_max - v_min < FLT_MAX) && ((v_max - v_min) > 0.000001f)) // Epsilon to avoid /0
adjust_delta /= (float)(v_max - v_min);
// Clear current value on activation
// Avoid altering values and clamping when we are _already_ past the limits and heading in the same direction, so e.g. if range is 0..255, current value is 300 and we are pushing to the right side, keep the 300.
bool is_just_activated = g.ActiveIdIsJustActivated;
bool is_already_past_limits_and_pushing_outward = is_clamped && ((*v >= v_max && adjust_delta > 0.0f) || (*v <= v_min && adjust_delta < 0.0f));
if (is_just_activated || is_already_past_limits_and_pushing_outward)
{
g.DragCurrentAccum = 0.0f;
g.DragCurrentAccumDirty = false;
}
else if (adjust_delta != 0.0f)
{
g.DragCurrentAccum += adjust_delta;
g.DragCurrentAccumDirty = true;
}
if (!g.DragCurrentAccumDirty)
return false;
TYPE v_cur = *v;
FLOATTYPE v_old_ref_for_accum_remainder = (FLOATTYPE)0.0f;
float logarithmic_zero_epsilon = 0.0f; // Only valid when is_logarithmic is true
const float zero_deadzone_halfsize = 0.0f; // Drag widgets have no deadzone (as it doesn't make sense)
if (is_logarithmic)
{
// When using logarithmic sliders, we need to clamp to avoid hitting zero, but our choice of clamp value greatly affects slider precision. We attempt to use the specified precision to estimate a good lower bound.
const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 1;
logarithmic_zero_epsilon = ImPow(0.1f, (float)decimal_precision);
// Convert to parametric space, apply delta, convert back
float v_old_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float v_new_parametric = v_old_parametric + g.DragCurrentAccum;
v_cur = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new_parametric, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
v_old_ref_for_accum_remainder = v_old_parametric;
}
else
{
v_cur += (SIGNEDTYPE)g.DragCurrentAccum;
}
// Round to user desired precision based on format string
if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
v_cur = RoundScalarWithFormatT<TYPE>(format, data_type, v_cur);
// Preserve remainder after rounding has been applied. This also allow slow tweaking of values.
g.DragCurrentAccumDirty = false;
if (is_logarithmic)
{
// Convert to parametric space, apply delta, convert back
float v_new_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
g.DragCurrentAccum -= (float)(v_new_parametric - v_old_ref_for_accum_remainder);
}
else
{
g.DragCurrentAccum -= (float)((SIGNEDTYPE)v_cur - (SIGNEDTYPE)*v);
}
// Lose zero sign for float/double
if (v_cur == (TYPE)-0)
v_cur = (TYPE)0;
// Clamp values (+ handle overflow/wrap-around for integer types)
if (*v != v_cur && is_clamped)
{
if (v_cur < v_min || (v_cur > *v && adjust_delta < 0.0f && !is_floating_point))
v_cur = v_min;
if (v_cur > v_max || (v_cur < *v && adjust_delta > 0.0f && !is_floating_point))
v_cur = v_max;
}
// Apply result
if (*v == v_cur)
return false;
*v = v_cur;
return true;
}
bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
{
// Read imgui.cpp "API BREAKING CHANGES" section for 1.78 if you hit this assert.
IM_ASSERT((flags == 1 || (flags & ImGuiSliderFlags_InvalidMask_) == 0) && "Invalid ImGuiSliderFlags flags! Has the 'float power' argument been mistakenly cast to flags? Call function with ImGuiSliderFlags_Logarithmic flags instead.");
ImGuiContext& g = *GImGui;
if (g.ActiveId == id)
{
// Those are the things we can do easily outside the DragBehaviorT<> template, saves code generation.
if (g.ActiveIdSource == ImGuiInputSource_Mouse && !g.IO.MouseDown[0])
ClearActiveID();
else if (g.ActiveIdSource == ImGuiInputSource_Nav && g.NavActivatePressedId == id && !g.ActiveIdIsJustActivated)
ClearActiveID();
}
if (g.ActiveId != id)
return false;
if ((g.LastItemData.InFlags & ImGuiItemFlags_ReadOnly) || (flags & ImGuiSliderFlags_ReadOnly))
return false;
switch (data_type)
{
case ImGuiDataType_S8: { ImS32 v32 = (ImS32)*(ImS8*)p_v; bool r = DragBehaviorT<ImS32, ImS32, float>(ImGuiDataType_S32, &v32, v_speed, p_min ? *(const ImS8*) p_min : IM_S8_MIN, p_max ? *(const ImS8*)p_max : IM_S8_MAX, format, flags); if (r) *(ImS8*)p_v = (ImS8)v32; return r; }
case ImGuiDataType_U8: { ImU32 v32 = (ImU32)*(ImU8*)p_v; bool r = DragBehaviorT<ImU32, ImS32, float>(ImGuiDataType_U32, &v32, v_speed, p_min ? *(const ImU8*) p_min : IM_U8_MIN, p_max ? *(const ImU8*)p_max : IM_U8_MAX, format, flags); if (r) *(ImU8*)p_v = (ImU8)v32; return r; }
case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)p_v; bool r = DragBehaviorT<ImS32, ImS32, float>(ImGuiDataType_S32, &v32, v_speed, p_min ? *(const ImS16*)p_min : IM_S16_MIN, p_max ? *(const ImS16*)p_max : IM_S16_MAX, format, flags); if (r) *(ImS16*)p_v = (ImS16)v32; return r; }
case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)p_v; bool r = DragBehaviorT<ImU32, ImS32, float>(ImGuiDataType_U32, &v32, v_speed, p_min ? *(const ImU16*)p_min : IM_U16_MIN, p_max ? *(const ImU16*)p_max : IM_U16_MAX, format, flags); if (r) *(ImU16*)p_v = (ImU16)v32; return r; }
case ImGuiDataType_S32: return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)p_v, v_speed, p_min ? *(const ImS32* )p_min : IM_S32_MIN, p_max ? *(const ImS32* )p_max : IM_S32_MAX, format, flags);
case ImGuiDataType_U32: return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)p_v, v_speed, p_min ? *(const ImU32* )p_min : IM_U32_MIN, p_max ? *(const ImU32* )p_max : IM_U32_MAX, format, flags);
case ImGuiDataType_S64: return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)p_v, v_speed, p_min ? *(const ImS64* )p_min : IM_S64_MIN, p_max ? *(const ImS64* )p_max : IM_S64_MAX, format, flags);
case ImGuiDataType_U64: return DragBehaviorT<ImU64, ImS64, double>(data_type, (ImU64*)p_v, v_speed, p_min ? *(const ImU64* )p_min : IM_U64_MIN, p_max ? *(const ImU64* )p_max : IM_U64_MAX, format, flags);
case ImGuiDataType_Float: return DragBehaviorT<float, float, float >(data_type, (float*)p_v, v_speed, p_min ? *(const float* )p_min : -FLT_MAX, p_max ? *(const float* )p_max : FLT_MAX, format, flags);
case ImGuiDataType_Double: return DragBehaviorT<double,double,double>(data_type, (double*)p_v, v_speed, p_min ? *(const double*)p_min : -DBL_MAX, p_max ? *(const double*)p_max : DBL_MAX, format, flags);
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
return false;
}
// Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a Drag widget, p_min and p_max are optional.
// Read code of e.g. DragFloat(), DragInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = CalcItemWidth();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
return false;
// Default format string when passing NULL
if (format == NULL)
format = DataTypeGetInfo(data_type)->PrintFmt;
const bool hovered = ItemHoverable(frame_bb, id);
bool temp_input_is_active = temp_input_allowed && TempInputIsActive(id);
if (!temp_input_is_active)
{
// Tabbing or CTRL-clicking on Drag turns it into an InputText
const bool input_requested_by_tabbing = temp_input_allowed && (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
const bool clicked = hovered && IsMouseClicked(0, id);
const bool double_clicked = (hovered && g.IO.MouseClickedCount[0] == 2 && TestKeyOwner(ImGuiKey_MouseLeft, id));
const bool make_active = (input_requested_by_tabbing || clicked || double_clicked || g.NavActivateId == id);
if (make_active && (clicked || double_clicked))
SetKeyOwner(ImGuiKey_MouseLeft, id);
if (make_active && temp_input_allowed)
if (input_requested_by_tabbing || (clicked && g.IO.KeyCtrl) || double_clicked || (g.NavActivateId == id && (g.NavActivateFlags & ImGuiActivateFlags_PreferInput)))
temp_input_is_active = true;
// (Optional) simple click (without moving) turns Drag into an InputText
if (g.IO.ConfigDragClickToInputText && temp_input_allowed && !temp_input_is_active)
if (g.ActiveId == id && hovered && g.IO.MouseReleased[0] && !IsMouseDragPastThreshold(0, g.IO.MouseDragThreshold * DRAG_MOUSE_THRESHOLD_FACTOR))
{
g.NavActivateId = id;
g.NavActivateFlags = ImGuiActivateFlags_PreferInput;
temp_input_is_active = true;
}
if (make_active && !temp_input_is_active)
{
SetActiveID(id, window);
SetFocusID(id, window);
FocusWindow(window);
g.ActiveIdUsingNavDirMask = (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
}
}
if (temp_input_is_active)
{
// Only clamp CTRL+Click input when ImGuiSliderFlags_AlwaysClamp is set
const bool is_clamp_input = (flags & ImGuiSliderFlags_AlwaysClamp) != 0 && (p_min == NULL || p_max == NULL || DataTypeCompare(data_type, p_min, p_max) < 0);
return TempInputScalar(frame_bb, id, label, data_type, p_data, format, is_clamp_input ? p_min : NULL, is_clamp_input ? p_max : NULL);
}
// Draw frame
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
RenderNavHighlight(frame_bb, id);
RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, style.FrameRounding);
// Drag behavior
const bool value_changed = DragBehavior(id, data_type, p_data, v_speed, p_min, p_max, format, flags);
if (value_changed)
MarkItemEdited(id);
// Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
char value_buf[64];
const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
if (g.LogEnabled)
LogSetNextTextDecoration("{", "}");
RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (temp_input_allowed ? ImGuiItemStatusFlags_Inputable : 0));
return value_changed;
}
bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
bool value_changed = false;
BeginGroup();
PushID(label);
PushMultiItemsWidths(components, CalcItemWidth());
size_t type_size = GDataTypeInfo[data_type].Size;
for (int i = 0; i < components; i++)
{
PushID(i);
if (i > 0)
SameLine(0, g.Style.ItemInnerSpacing.x);
value_changed |= DragScalar("", data_type, p_data, v_speed, p_min, p_max, format, flags);
PopID();
PopItemWidth();
p_data = (void*)((char*)p_data + type_size);
}
PopID();
const char* label_end = FindRenderedTextEnd(label);
if (label != label_end)
{
SameLine(0, g.Style.ItemInnerSpacing.x);
TextEx(label, label_end);
}
EndGroup();
return value_changed;
}
bool ImGui::DragFloat(const char* label, float* v, float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalar(label, ImGuiDataType_Float, v, v_speed, &v_min, &v_max, format, flags);
}
bool ImGui::DragFloat2(const char* label, float v[2], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalarN(label, ImGuiDataType_Float, v, 2, v_speed, &v_min, &v_max, format, flags);
}
bool ImGui::DragFloat3(const char* label, float v[3], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalarN(label, ImGuiDataType_Float, v, 3, v_speed, &v_min, &v_max, format, flags);
}
bool ImGui::DragFloat4(const char* label, float v[4], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalarN(label, ImGuiDataType_Float, v, 4, v_speed, &v_min, &v_max, format, flags);
}
// NB: You likely want to specify the ImGuiSliderFlags_AlwaysClamp when using this.
bool ImGui::DragFloatRange2(const char* label, float* v_current_min, float* v_current_max, float v_speed, float v_min, float v_max, const char* format, const char* format_max, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
PushID(label);
BeginGroup();
PushMultiItemsWidths(2, CalcItemWidth());
float min_min = (v_min >= v_max) ? -FLT_MAX : v_min;
float min_max = (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max);
ImGuiSliderFlags min_flags = flags | ((min_min == min_max) ? ImGuiSliderFlags_ReadOnly : 0);
bool value_changed = DragScalar("##min", ImGuiDataType_Float, v_current_min, v_speed, &min_min, &min_max, format, min_flags);
PopItemWidth();
SameLine(0, g.Style.ItemInnerSpacing.x);
float max_min = (v_min >= v_max) ? *v_current_min : ImMax(v_min, *v_current_min);
float max_max = (v_min >= v_max) ? FLT_MAX : v_max;
ImGuiSliderFlags max_flags = flags | ((max_min == max_max) ? ImGuiSliderFlags_ReadOnly : 0);
value_changed |= DragScalar("##max", ImGuiDataType_Float, v_current_max, v_speed, &max_min, &max_max, format_max ? format_max : format, max_flags);
PopItemWidth();
SameLine(0, g.Style.ItemInnerSpacing.x);
TextEx(label, FindRenderedTextEnd(label));
EndGroup();
PopID();
return value_changed;
}
// NB: v_speed is float to allow adjusting the drag speed with more precision
bool ImGui::DragInt(const char* label, int* v, float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalar(label, ImGuiDataType_S32, v, v_speed, &v_min, &v_max, format, flags);
}
bool ImGui::DragInt2(const char* label, int v[2], float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalarN(label, ImGuiDataType_S32, v, 2, v_speed, &v_min, &v_max, format, flags);
}
bool ImGui::DragInt3(const char* label, int v[3], float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalarN(label, ImGuiDataType_S32, v, 3, v_speed, &v_min, &v_max, format, flags);
}
bool ImGui::DragInt4(const char* label, int v[4], float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return DragScalarN(label, ImGuiDataType_S32, v, 4, v_speed, &v_min, &v_max, format, flags);
}
// NB: You likely want to specify the ImGuiSliderFlags_AlwaysClamp when using this.
bool ImGui::DragIntRange2(const char* label, int* v_current_min, int* v_current_max, float v_speed, int v_min, int v_max, const char* format, const char* format_max, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
PushID(label);
BeginGroup();
PushMultiItemsWidths(2, CalcItemWidth());
int min_min = (v_min >= v_max) ? INT_MIN : v_min;
int min_max = (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max);
ImGuiSliderFlags min_flags = flags | ((min_min == min_max) ? ImGuiSliderFlags_ReadOnly : 0);
bool value_changed = DragInt("##min", v_current_min, v_speed, min_min, min_max, format, min_flags);
PopItemWidth();
SameLine(0, g.Style.ItemInnerSpacing.x);
int max_min = (v_min >= v_max) ? *v_current_min : ImMax(v_min, *v_current_min);
int max_max = (v_min >= v_max) ? INT_MAX : v_max;
ImGuiSliderFlags max_flags = flags | ((max_min == max_max) ? ImGuiSliderFlags_ReadOnly : 0);
value_changed |= DragInt("##max", v_current_max, v_speed, max_min, max_max, format_max ? format_max : format, max_flags);
PopItemWidth();
SameLine(0, g.Style.ItemInnerSpacing.x);
TextEx(label, FindRenderedTextEnd(label));
EndGroup();
PopID();
return value_changed;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: SliderScalar, SliderFloat, SliderInt, etc.
//-------------------------------------------------------------------------
// - ScaleRatioFromValueT<> [Internal]
// - ScaleValueFromRatioT<> [Internal]
// - SliderBehaviorT<>() [Internal]
// - SliderBehavior() [Internal]
// - SliderScalar()
// - SliderScalarN()
// - SliderFloat()
// - SliderFloat2()
// - SliderFloat3()
// - SliderFloat4()
// - SliderAngle()
// - SliderInt()
// - SliderInt2()
// - SliderInt3()
// - SliderInt4()
// - VSliderScalar()
// - VSliderFloat()
// - VSliderInt()
//-------------------------------------------------------------------------
// Convert a value v in the output space of a slider into a parametric position on the slider itself (the logical opposite of ScaleValueFromRatioT)
template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
float ImGui::ScaleRatioFromValueT(ImGuiDataType data_type, TYPE v, TYPE v_min, TYPE v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
{
if (v_min == v_max)
return 0.0f;
IM_UNUSED(data_type);
const TYPE v_clamped = (v_min < v_max) ? ImClamp(v, v_min, v_max) : ImClamp(v, v_max, v_min);
if (is_logarithmic)
{
bool flipped = v_max < v_min;
if (flipped) // Handle the case where the range is backwards
ImSwap(v_min, v_max);
// Fudge min/max to avoid getting close to log(0)
FLOATTYPE v_min_fudged = (ImAbs((FLOATTYPE)v_min) < logarithmic_zero_epsilon) ? ((v_min < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_min;
FLOATTYPE v_max_fudged = (ImAbs((FLOATTYPE)v_max) < logarithmic_zero_epsilon) ? ((v_max < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_max;
// Awkward special cases - we need ranges of the form (-100 .. 0) to convert to (-100 .. -epsilon), not (-100 .. epsilon)
if ((v_min == 0.0f) && (v_max < 0.0f))
v_min_fudged = -logarithmic_zero_epsilon;
else if ((v_max == 0.0f) && (v_min < 0.0f))
v_max_fudged = -logarithmic_zero_epsilon;
float result;
if (v_clamped <= v_min_fudged)
result = 0.0f; // Workaround for values that are in-range but below our fudge
else if (v_clamped >= v_max_fudged)
result = 1.0f; // Workaround for values that are in-range but above our fudge
else if ((v_min * v_max) < 0.0f) // Range crosses zero, so split into two portions
{
float zero_point_center = (-(float)v_min) / ((float)v_max - (float)v_min); // The zero point in parametric space. There's an argument we should take the logarithmic nature into account when calculating this, but for now this should do (and the most common case of a symmetrical range works fine)
float zero_point_snap_L = zero_point_center - zero_deadzone_halfsize;
float zero_point_snap_R = zero_point_center + zero_deadzone_halfsize;
if (v == 0.0f)
result = zero_point_center; // Special case for exactly zero
else if (v < 0.0f)
result = (1.0f - (float)(ImLog(-(FLOATTYPE)v_clamped / logarithmic_zero_epsilon) / ImLog(-v_min_fudged / logarithmic_zero_epsilon))) * zero_point_snap_L;
else
result = zero_point_snap_R + ((float)(ImLog((FLOATTYPE)v_clamped / logarithmic_zero_epsilon) / ImLog(v_max_fudged / logarithmic_zero_epsilon)) * (1.0f - zero_point_snap_R));
}
else if ((v_min < 0.0f) || (v_max < 0.0f)) // Entirely negative slider
result = 1.0f - (float)(ImLog(-(FLOATTYPE)v_clamped / -v_max_fudged) / ImLog(-v_min_fudged / -v_max_fudged));
else
result = (float)(ImLog((FLOATTYPE)v_clamped / v_min_fudged) / ImLog(v_max_fudged / v_min_fudged));
return flipped ? (1.0f - result) : result;
}
else
{
// Linear slider
return (float)((FLOATTYPE)(SIGNEDTYPE)(v_clamped - v_min) / (FLOATTYPE)(SIGNEDTYPE)(v_max - v_min));
}
}
// Convert a parametric position on a slider into a value v in the output space (the logical opposite of ScaleRatioFromValueT)
template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
TYPE ImGui::ScaleValueFromRatioT(ImGuiDataType data_type, float t, TYPE v_min, TYPE v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
{
// We special-case the extents because otherwise our logarithmic fudging can lead to "mathematically correct"
// but non-intuitive behaviors like a fully-left slider not actually reaching the minimum value. Also generally simpler.
if (t <= 0.0f || v_min == v_max)
return v_min;
if (t >= 1.0f)
return v_max;
TYPE result = (TYPE)0;
if (is_logarithmic)
{
// Fudge min/max to avoid getting silly results close to zero
FLOATTYPE v_min_fudged = (ImAbs((FLOATTYPE)v_min) < logarithmic_zero_epsilon) ? ((v_min < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_min;
FLOATTYPE v_max_fudged = (ImAbs((FLOATTYPE)v_max) < logarithmic_zero_epsilon) ? ((v_max < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_max;
const bool flipped = v_max < v_min; // Check if range is "backwards"
if (flipped)
ImSwap(v_min_fudged, v_max_fudged);
// Awkward special case - we need ranges of the form (-100 .. 0) to convert to (-100 .. -epsilon), not (-100 .. epsilon)
if ((v_max == 0.0f) && (v_min < 0.0f))
v_max_fudged = -logarithmic_zero_epsilon;
float t_with_flip = flipped ? (1.0f - t) : t; // t, but flipped if necessary to account for us flipping the range
if ((v_min * v_max) < 0.0f) // Range crosses zero, so we have to do this in two parts
{
float zero_point_center = (-(float)ImMin(v_min, v_max)) / ImAbs((float)v_max - (float)v_min); // The zero point in parametric space
float zero_point_snap_L = zero_point_center - zero_deadzone_halfsize;
float zero_point_snap_R = zero_point_center + zero_deadzone_halfsize;
if (t_with_flip >= zero_point_snap_L && t_with_flip <= zero_point_snap_R)
result = (TYPE)0.0f; // Special case to make getting exactly zero possible (the epsilon prevents it otherwise)
else if (t_with_flip < zero_point_center)
result = (TYPE)-(logarithmic_zero_epsilon * ImPow(-v_min_fudged / logarithmic_zero_epsilon, (FLOATTYPE)(1.0f - (t_with_flip / zero_point_snap_L))));
else
result = (TYPE)(logarithmic_zero_epsilon * ImPow(v_max_fudged / logarithmic_zero_epsilon, (FLOATTYPE)((t_with_flip - zero_point_snap_R) / (1.0f - zero_point_snap_R))));
}
else if ((v_min < 0.0f) || (v_max < 0.0f)) // Entirely negative slider
result = (TYPE)-(-v_max_fudged * ImPow(-v_min_fudged / -v_max_fudged, (FLOATTYPE)(1.0f - t_with_flip)));
else
result = (TYPE)(v_min_fudged * ImPow(v_max_fudged / v_min_fudged, (FLOATTYPE)t_with_flip));
}
else
{
// Linear slider
const bool is_floating_point = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
if (is_floating_point)
{
result = ImLerp(v_min, v_max, t);
}
else if (t < 1.0)
{
// - For integer values we want the clicking position to match the grab box so we round above
// This code is carefully tuned to work with large values (e.g. high ranges of U64) while preserving this property..
// - Not doing a *1.0 multiply at the end of a range as it tends to be lossy. While absolute aiming at a large s64/u64
// range is going to be imprecise anyway, with this check we at least make the edge values matches expected limits.
FLOATTYPE v_new_off_f = (SIGNEDTYPE)(v_max - v_min) * t;
result = (TYPE)((SIGNEDTYPE)v_min + (SIGNEDTYPE)(v_new_off_f + (FLOATTYPE)(v_min > v_max ? -0.5 : 0.5)));
}
}
return result;
}
// FIXME: Try to move more of the code into shared SliderBehavior()
template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, TYPE* v, const TYPE v_min, const TYPE v_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb)
{
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiAxis axis = (flags & ImGuiSliderFlags_Vertical) ? ImGuiAxis_Y : ImGuiAxis_X;
const bool is_logarithmic = (flags & ImGuiSliderFlags_Logarithmic) != 0;
const bool is_floating_point = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
const SIGNEDTYPE v_range = (v_min < v_max ? v_max - v_min : v_min - v_max);
// Calculate bounds
const float grab_padding = 2.0f; // FIXME: Should be part of style.
const float slider_sz = (bb.Max[axis] - bb.Min[axis]) - grab_padding * 2.0f;
float grab_sz = style.GrabMinSize;
if (!is_floating_point && v_range >= 0) // v_range < 0 may happen on integer overflows
grab_sz = ImMax((float)(slider_sz / (v_range + 1)), style.GrabMinSize); // For integer sliders: if possible have the grab size represent 1 unit
grab_sz = ImMin(grab_sz, slider_sz);
const float slider_usable_sz = slider_sz - grab_sz;
const float slider_usable_pos_min = bb.Min[axis] + grab_padding + grab_sz * 0.5f;
const float slider_usable_pos_max = bb.Max[axis] - grab_padding - grab_sz * 0.5f;
float logarithmic_zero_epsilon = 0.0f; // Only valid when is_logarithmic is true
float zero_deadzone_halfsize = 0.0f; // Only valid when is_logarithmic is true
if (is_logarithmic)
{
// When using logarithmic sliders, we need to clamp to avoid hitting zero, but our choice of clamp value greatly affects slider precision. We attempt to use the specified precision to estimate a good lower bound.
const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 1;
logarithmic_zero_epsilon = ImPow(0.1f, (float)decimal_precision);
zero_deadzone_halfsize = (style.LogSliderDeadzone * 0.5f) / ImMax(slider_usable_sz, 1.0f);
}
// Process interacting with the slider
bool value_changed = false;
if (g.ActiveId == id)
{
bool set_new_value = false;
float clicked_t = 0.0f;
if (g.ActiveIdSource == ImGuiInputSource_Mouse)
{
if (!g.IO.MouseDown[0])
{
ClearActiveID();
}
else
{
const float mouse_abs_pos = g.IO.MousePos[axis];
if (g.ActiveIdIsJustActivated)
{
float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (axis == ImGuiAxis_Y)
grab_t = 1.0f - grab_t;
const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);
const bool clicked_around_grab = (mouse_abs_pos >= grab_pos - grab_sz * 0.5f - 1.0f) && (mouse_abs_pos <= grab_pos + grab_sz * 0.5f + 1.0f); // No harm being extra generous here.
g.SliderGrabClickOffset = (clicked_around_grab && is_floating_point) ? mouse_abs_pos - grab_pos : 0.0f;
}
if (slider_usable_sz > 0.0f)
clicked_t = ImSaturate((mouse_abs_pos - g.SliderGrabClickOffset - slider_usable_pos_min) / slider_usable_sz);
if (axis == ImGuiAxis_Y)
clicked_t = 1.0f - clicked_t;
set_new_value = true;
}
}
else if (g.ActiveIdSource == ImGuiInputSource_Nav)
{
if (g.ActiveIdIsJustActivated)
{
g.SliderCurrentAccum = 0.0f; // Reset any stored nav delta upon activation
g.SliderCurrentAccumDirty = false;
}
float input_delta = (axis == ImGuiAxis_X) ? GetNavTweakPressedAmount(axis) : -GetNavTweakPressedAmount(axis);
if (input_delta != 0.0f)
{
const bool tweak_slow = IsKeyDown((g.NavInputSource == ImGuiInputSource_Gamepad) ? ImGuiKey_NavGamepadTweakSlow : ImGuiKey_NavKeyboardTweakSlow);
const bool tweak_fast = IsKeyDown((g.NavInputSource == ImGuiInputSource_Gamepad) ? ImGuiKey_NavGamepadTweakFast : ImGuiKey_NavKeyboardTweakFast);
const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 0;
if (decimal_precision > 0)
{
input_delta /= 100.0f; // Gamepad/keyboard tweak speeds in % of slider bounds
if (tweak_slow)
input_delta /= 10.0f;
}
else
{
if ((v_range >= -100.0f && v_range <= 100.0f) || tweak_slow)
input_delta = ((input_delta < 0.0f) ? -1.0f : +1.0f) / (float)v_range; // Gamepad/keyboard tweak speeds in integer steps
else
input_delta /= 100.0f;
}
if (tweak_fast)
input_delta *= 10.0f;
g.SliderCurrentAccum += input_delta;
g.SliderCurrentAccumDirty = true;
}
float delta = g.SliderCurrentAccum;
if (g.NavActivatePressedId == id && !g.ActiveIdIsJustActivated)
{
ClearActiveID();
}
else if (g.SliderCurrentAccumDirty)
{
clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if ((clicked_t >= 1.0f && delta > 0.0f) || (clicked_t <= 0.0f && delta < 0.0f)) // This is to avoid applying the saturation when already past the limits
{
set_new_value = false;
g.SliderCurrentAccum = 0.0f; // If pushing up against the limits, don't continue to accumulate
}
else
{
set_new_value = true;
float old_clicked_t = clicked_t;
clicked_t = ImSaturate(clicked_t + delta);
// Calculate what our "new" clicked_t will be, and thus how far we actually moved the slider, and subtract this from the accumulator
TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
v_new = RoundScalarWithFormatT<TYPE>(format, data_type, v_new);
float new_clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (delta > 0)
g.SliderCurrentAccum -= ImMin(new_clicked_t - old_clicked_t, delta);
else
g.SliderCurrentAccum -= ImMax(new_clicked_t - old_clicked_t, delta);
}
g.SliderCurrentAccumDirty = false;
}
}
if (set_new_value)
{
TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
// Round to user desired precision based on format string
if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
v_new = RoundScalarWithFormatT<TYPE>(format, data_type, v_new);
// Apply result
if (*v != v_new)
{
*v = v_new;
value_changed = true;
}
}
}
if (slider_sz < 1.0f)
{
*out_grab_bb = ImRect(bb.Min, bb.Min);
}
else
{
// Output grab position so it can be displayed by the caller
float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (axis == ImGuiAxis_Y)
grab_t = 1.0f - grab_t;
const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);
if (axis == ImGuiAxis_X)
*out_grab_bb = ImRect(grab_pos - grab_sz * 0.5f, bb.Min.y + grab_padding, grab_pos + grab_sz * 0.5f, bb.Max.y - grab_padding);
else
*out_grab_bb = ImRect(bb.Min.x + grab_padding, grab_pos - grab_sz * 0.5f, bb.Max.x - grab_padding, grab_pos + grab_sz * 0.5f);
}
return value_changed;
}
// For 32-bit and larger types, slider bounds are limited to half the natural type range.
// So e.g. an integer Slider between INT_MAX-10 and INT_MAX will fail, but an integer Slider between INT_MAX/2-10 and INT_MAX/2 will be ok.
// It would be possible to lift that limitation with some work but it doesn't seem to be worth it for sliders.
bool ImGui::SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb)
{
// Read imgui.cpp "API BREAKING CHANGES" section for 1.78 if you hit this assert.
IM_ASSERT((flags == 1 || (flags & ImGuiSliderFlags_InvalidMask_) == 0) && "Invalid ImGuiSliderFlags flag! Has the 'float power' argument been mistakenly cast to flags? Call function with ImGuiSliderFlags_Logarithmic flags instead.");
// Those are the things we can do easily outside the SliderBehaviorT<> template, saves code generation.
ImGuiContext& g = *GImGui;
if ((g.LastItemData.InFlags & ImGuiItemFlags_ReadOnly) || (flags & ImGuiSliderFlags_ReadOnly))
return false;
switch (data_type)
{
case ImGuiDataType_S8: { ImS32 v32 = (ImS32)*(ImS8*)p_v; bool r = SliderBehaviorT<ImS32, ImS32, float>(bb, id, ImGuiDataType_S32, &v32, *(const ImS8*)p_min, *(const ImS8*)p_max, format, flags, out_grab_bb); if (r) *(ImS8*)p_v = (ImS8)v32; return r; }
case ImGuiDataType_U8: { ImU32 v32 = (ImU32)*(ImU8*)p_v; bool r = SliderBehaviorT<ImU32, ImS32, float>(bb, id, ImGuiDataType_U32, &v32, *(const ImU8*)p_min, *(const ImU8*)p_max, format, flags, out_grab_bb); if (r) *(ImU8*)p_v = (ImU8)v32; return r; }
case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)p_v; bool r = SliderBehaviorT<ImS32, ImS32, float>(bb, id, ImGuiDataType_S32, &v32, *(const ImS16*)p_min, *(const ImS16*)p_max, format, flags, out_grab_bb); if (r) *(ImS16*)p_v = (ImS16)v32; return r; }
case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)p_v; bool r = SliderBehaviorT<ImU32, ImS32, float>(bb, id, ImGuiDataType_U32, &v32, *(const ImU16*)p_min, *(const ImU16*)p_max, format, flags, out_grab_bb); if (r) *(ImU16*)p_v = (ImU16)v32; return r; }
case ImGuiDataType_S32:
IM_ASSERT(*(const ImS32*)p_min >= IM_S32_MIN / 2 && *(const ImS32*)p_max <= IM_S32_MAX / 2);
return SliderBehaviorT<ImS32, ImS32, float >(bb, id, data_type, (ImS32*)p_v, *(const ImS32*)p_min, *(const ImS32*)p_max, format, flags, out_grab_bb);
case ImGuiDataType_U32:
IM_ASSERT(*(const ImU32*)p_max <= IM_U32_MAX / 2);
return SliderBehaviorT<ImU32, ImS32, float >(bb, id, data_type, (ImU32*)p_v, *(const ImU32*)p_min, *(const ImU32*)p_max, format, flags, out_grab_bb);
case ImGuiDataType_S64:
IM_ASSERT(*(const ImS64*)p_min >= IM_S64_MIN / 2 && *(const ImS64*)p_max <= IM_S64_MAX / 2);
return SliderBehaviorT<ImS64, ImS64, double>(bb, id, data_type, (ImS64*)p_v, *(const ImS64*)p_min, *(const ImS64*)p_max, format, flags, out_grab_bb);
case ImGuiDataType_U64:
IM_ASSERT(*(const ImU64*)p_max <= IM_U64_MAX / 2);
return SliderBehaviorT<ImU64, ImS64, double>(bb, id, data_type, (ImU64*)p_v, *(const ImU64*)p_min, *(const ImU64*)p_max, format, flags, out_grab_bb);
case ImGuiDataType_Float:
IM_ASSERT(*(const float*)p_min >= -FLT_MAX / 2.0f && *(const float*)p_max <= FLT_MAX / 2.0f);
return SliderBehaviorT<float, float, float >(bb, id, data_type, (float*)p_v, *(const float*)p_min, *(const float*)p_max, format, flags, out_grab_bb);
case ImGuiDataType_Double:
IM_ASSERT(*(const double*)p_min >= -DBL_MAX / 2.0f && *(const double*)p_max <= DBL_MAX / 2.0f);
return SliderBehaviorT<double, double, double>(bb, id, data_type, (double*)p_v, *(const double*)p_min, *(const double*)p_max, format, flags, out_grab_bb);
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
return false;
}
// Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a slider, they are all required.
// Read code of e.g. SliderFloat(), SliderInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = CalcItemWidth();
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
return false;
// Default format string when passing NULL
if (format == NULL)
format = DataTypeGetInfo(data_type)->PrintFmt;
const bool hovered = ItemHoverable(frame_bb, id);
bool temp_input_is_active = temp_input_allowed && TempInputIsActive(id);
if (!temp_input_is_active)
{
// Tabbing or CTRL-clicking on Slider turns it into an input box
const bool input_requested_by_tabbing = temp_input_allowed && (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
const bool clicked = hovered && IsMouseClicked(0, id);
const bool make_active = (input_requested_by_tabbing || clicked || g.NavActivateId == id);
if (make_active && clicked)
SetKeyOwner(ImGuiKey_MouseLeft, id);
if (make_active && temp_input_allowed)
if (input_requested_by_tabbing || (clicked && g.IO.KeyCtrl) || (g.NavActivateId == id && (g.NavActivateFlags & ImGuiActivateFlags_PreferInput)))
temp_input_is_active = true;
if (make_active && !temp_input_is_active)
{
SetActiveID(id, window);
SetFocusID(id, window);
FocusWindow(window);
g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
}
}
if (temp_input_is_active)
{
// Only clamp CTRL+Click input when ImGuiSliderFlags_AlwaysClamp is set
const bool is_clamp_input = (flags & ImGuiSliderFlags_AlwaysClamp) != 0;
return TempInputScalar(frame_bb, id, label, data_type, p_data, format, is_clamp_input ? p_min : NULL, is_clamp_input ? p_max : NULL);
}
// Draw frame
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
RenderNavHighlight(frame_bb, id);
RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
// Slider behavior
ImRect grab_bb;
const bool value_changed = SliderBehavior(frame_bb, id, data_type, p_data, p_min, p_max, format, flags, &grab_bb);
if (value_changed)
MarkItemEdited(id);
// Render grab
if (grab_bb.Max.x > grab_bb.Min.x)
window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
// Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
char value_buf[64];
const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
if (g.LogEnabled)
LogSetNextTextDecoration("{", "}");
RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (temp_input_allowed ? ImGuiItemStatusFlags_Inputable : 0));
return value_changed;
}
// Add multiple sliders on 1 line for compact edition of multiple components
bool ImGui::SliderScalarN(const char* label, ImGuiDataType data_type, void* v, int components, const void* v_min, const void* v_max, const char* format, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
bool value_changed = false;
BeginGroup();
PushID(label);
PushMultiItemsWidths(components, CalcItemWidth());
size_t type_size = GDataTypeInfo[data_type].Size;
for (int i = 0; i < components; i++)
{
PushID(i);
if (i > 0)
SameLine(0, g.Style.ItemInnerSpacing.x);
value_changed |= SliderScalar("", data_type, v, v_min, v_max, format, flags);
PopID();
PopItemWidth();
v = (void*)((char*)v + type_size);
}
PopID();
const char* label_end = FindRenderedTextEnd(label);
if (label != label_end)
{
SameLine(0, g.Style.ItemInnerSpacing.x);
TextEx(label, label_end);
}
EndGroup();
return value_changed;
}
bool ImGui::SliderFloat(const char* label, float* v, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalar(label, ImGuiDataType_Float, v, &v_min, &v_max, format, flags);
}
bool ImGui::SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalarN(label, ImGuiDataType_Float, v, 2, &v_min, &v_max, format, flags);
}
bool ImGui::SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalarN(label, ImGuiDataType_Float, v, 3, &v_min, &v_max, format, flags);
}
bool ImGui::SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalarN(label, ImGuiDataType_Float, v, 4, &v_min, &v_max, format, flags);
}
bool ImGui::SliderAngle(const char* label, float* v_rad, float v_degrees_min, float v_degrees_max, const char* format, ImGuiSliderFlags flags)
{
if (format == NULL)
format = "%.0f deg";
float v_deg = (*v_rad) * 360.0f / (2 * IM_PI);
bool value_changed = SliderFloat(label, &v_deg, v_degrees_min, v_degrees_max, format, flags);
*v_rad = v_deg * (2 * IM_PI) / 360.0f;
return value_changed;
}
bool ImGui::SliderInt(const char* label, int* v, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalar(label, ImGuiDataType_S32, v, &v_min, &v_max, format, flags);
}
bool ImGui::SliderInt2(const char* label, int v[2], int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalarN(label, ImGuiDataType_S32, v, 2, &v_min, &v_max, format, flags);
}
bool ImGui::SliderInt3(const char* label, int v[3], int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalarN(label, ImGuiDataType_S32, v, 3, &v_min, &v_max, format, flags);
}
bool ImGui::SliderInt4(const char* label, int v[4], int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return SliderScalarN(label, ImGuiDataType_S32, v, 4, &v_min, &v_max, format, flags);
}
bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + size);
const ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
ItemSize(bb, style.FramePadding.y);
if (!ItemAdd(frame_bb, id))
return false;
// Default format string when passing NULL
if (format == NULL)
format = DataTypeGetInfo(data_type)->PrintFmt;
const bool hovered = ItemHoverable(frame_bb, id);
const bool clicked = hovered && IsMouseClicked(0, id);
if (clicked || g.NavActivateId == id)
{
if (clicked)
SetKeyOwner(ImGuiKey_MouseLeft, id);
SetActiveID(id, window);
SetFocusID(id, window);
FocusWindow(window);
g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down);
}
// Draw frame
const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
RenderNavHighlight(frame_bb, id);
RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
// Slider behavior
ImRect grab_bb;
const bool value_changed = SliderBehavior(frame_bb, id, data_type, p_data, p_min, p_max, format, flags | ImGuiSliderFlags_Vertical, &grab_bb);
if (value_changed)
MarkItemEdited(id);
// Render grab
if (grab_bb.Max.y > grab_bb.Min.y)
window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
// Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
// For the vertical slider we allow centered text to overlap the frame padding
char value_buf[64];
const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.0f));
if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
return value_changed;
}
bool ImGui::VSliderFloat(const char* label, const ImVec2& size, float* v, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
{
return VSliderScalar(label, size, ImGuiDataType_Float, v, &v_min, &v_max, format, flags);
}
bool ImGui::VSliderInt(const char* label, const ImVec2& size, int* v, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
{
return VSliderScalar(label, size, ImGuiDataType_S32, v, &v_min, &v_max, format, flags);
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: InputScalar, InputFloat, InputInt, etc.
//-------------------------------------------------------------------------
// - ImParseFormatFindStart() [Internal]
// - ImParseFormatFindEnd() [Internal]
// - ImParseFormatTrimDecorations() [Internal]
// - ImParseFormatSanitizeForPrinting() [Internal]
// - ImParseFormatSanitizeForScanning() [Internal]
// - ImParseFormatPrecision() [Internal]
// - TempInputTextScalar() [Internal]
// - InputScalar()
// - InputScalarN()
// - InputFloat()
// - InputFloat2()
// - InputFloat3()
// - InputFloat4()
// - InputInt()
// - InputInt2()
// - InputInt3()
// - InputInt4()
// - InputDouble()
//-------------------------------------------------------------------------
// We don't use strchr() because our strings are usually very short and often start with '%'
const char* ImParseFormatFindStart(const char* fmt)
{
while (char c = fmt[0])
{
if (c == '%' && fmt[1] != '%')
return fmt;
else if (c == '%')
fmt++;
fmt++;
}
return fmt;
}
const char* ImParseFormatFindEnd(const char* fmt)
{
// Printf/scanf types modifiers: I/L/h/j/l/t/w/z. Other uppercase letters qualify as types aka end of the format.
if (fmt[0] != '%')
return fmt;
const unsigned int ignored_uppercase_mask = (1 << ('I'-'A')) | (1 << ('L'-'A'));
const unsigned int ignored_lowercase_mask = (1 << ('h'-'a')) | (1 << ('j'-'a')) | (1 << ('l'-'a')) | (1 << ('t'-'a')) | (1 << ('w'-'a')) | (1 << ('z'-'a'));
for (char c; (c = *fmt) != 0; fmt++)
{
if (c >= 'A' && c <= 'Z' && ((1 << (c - 'A')) & ignored_uppercase_mask) == 0)
return fmt + 1;
if (c >= 'a' && c <= 'z' && ((1 << (c - 'a')) & ignored_lowercase_mask) == 0)
return fmt + 1;
}
return fmt;
}
// Extract the format out of a format string with leading or trailing decorations
// fmt = "blah blah" -> return fmt
// fmt = "%.3f" -> return fmt
// fmt = "hello %.3f" -> return fmt + 6
// fmt = "%.3f hello" -> return buf written with "%.3f"
const char* ImParseFormatTrimDecorations(const char* fmt, char* buf, size_t buf_size)
{
const char* fmt_start = ImParseFormatFindStart(fmt);
if (fmt_start[0] != '%')
return fmt;
const char* fmt_end = ImParseFormatFindEnd(fmt_start);
if (fmt_end[0] == 0) // If we only have leading decoration, we don't need to copy the data.
return fmt_start;
ImStrncpy(buf, fmt_start, ImMin((size_t)(fmt_end - fmt_start) + 1, buf_size));
return buf;
}
// Sanitize format
// - Zero terminate so extra characters after format (e.g. "%f123") don't confuse atof/atoi
// - stb_sprintf.h supports several new modifiers which format numbers in a way that also makes them incompatible atof/atoi.
void ImParseFormatSanitizeForPrinting(const char* fmt_in, char* fmt_out, size_t fmt_out_size)
{
const char* fmt_end = ImParseFormatFindEnd(fmt_in);
IM_UNUSED(fmt_out_size);
IM_ASSERT((size_t)(fmt_end - fmt_in + 1) < fmt_out_size); // Format is too long, let us know if this happens to you!
while (fmt_in < fmt_end)
{
char c = *fmt_in++;
if (c != '\'' && c != '$' && c != '_') // Custom flags provided by stb_sprintf.h. POSIX 2008 also supports '.
*(fmt_out++) = c;
}
*fmt_out = 0; // Zero-terminate
}
// - For scanning we need to remove all width and precision fields "%3.7f" -> "%f". BUT don't strip types like "%I64d" which includes digits. ! "%07I64d" -> "%I64d"
const char* ImParseFormatSanitizeForScanning(const char* fmt_in, char* fmt_out, size_t fmt_out_size)
{
const char* fmt_end = ImParseFormatFindEnd(fmt_in);
const char* fmt_out_begin = fmt_out;
IM_UNUSED(fmt_out_size);
IM_ASSERT((size_t)(fmt_end - fmt_in + 1) < fmt_out_size); // Format is too long, let us know if this happens to you!
bool has_type = false;
while (fmt_in < fmt_end)
{
char c = *fmt_in++;
if (!has_type && ((c >= '0' && c <= '9') || c == '.'))
continue;
has_type |= ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')); // Stop skipping digits
if (c != '\'' && c != '$' && c != '_') // Custom flags provided by stb_sprintf.h. POSIX 2008 also supports '.
*(fmt_out++) = c;
}
*fmt_out = 0; // Zero-terminate
return fmt_out_begin;
}
template<typename TYPE>
static const char* ImAtoi(const char* src, TYPE* output)
{
int negative = 0;
if (*src == '-') { negative = 1; src++; }
if (*src == '+') { src++; }
TYPE v = 0;
while (*src >= '0' && *src <= '9')
v = (v * 10) + (*src++ - '0');
*output = negative ? -v : v;
return src;
}
// Parse display precision back from the display format string
// FIXME: This is still used by some navigation code path to infer a minimum tweak step, but we should aim to rework widgets so it isn't needed.
int ImParseFormatPrecision(const char* fmt, int default_precision)
{
fmt = ImParseFormatFindStart(fmt);
if (fmt[0] != '%')
return default_precision;
fmt++;
while (*fmt >= '0' && *fmt <= '9')
fmt++;
int precision = INT_MAX;
if (*fmt == '.')
{
fmt = ImAtoi<int>(fmt + 1, &precision);
if (precision < 0 || precision > 99)
precision = default_precision;
}
if (*fmt == 'e' || *fmt == 'E') // Maximum precision with scientific notation
precision = -1;
if ((*fmt == 'g' || *fmt == 'G') && precision == INT_MAX)
precision = -1;
return (precision == INT_MAX) ? default_precision : precision;
}
// Create text input in place of another active widget (e.g. used when doing a CTRL+Click on drag/slider widgets)
// FIXME: Facilitate using this in variety of other situations.
bool ImGui::TempInputText(const ImRect& bb, ImGuiID id, const char* label, char* buf, int buf_size, ImGuiInputTextFlags flags)
{
// On the first frame, g.TempInputTextId == 0, then on subsequent frames it becomes == id.
// We clear ActiveID on the first frame to allow the InputText() taking it back.
ImGuiContext& g = *GImGui;
const bool init = (g.TempInputId != id);
if (init)
ClearActiveID();
g.CurrentWindow->DC.CursorPos = bb.Min;
bool value_changed = InputTextEx(label, NULL, buf, buf_size, bb.GetSize(), flags | ImGuiInputTextFlags_MergedItem);
if (init)
{
// First frame we started displaying the InputText widget, we expect it to take the active id.
IM_ASSERT(g.ActiveId == id);
g.TempInputId = g.ActiveId;
}
return value_changed;
}
static inline ImGuiInputTextFlags InputScalar_DefaultCharsFilter(ImGuiDataType data_type, const char* format)
{
if (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double)
return ImGuiInputTextFlags_CharsScientific;
const char format_last_char = format[0] ? format[strlen(format) - 1] : 0;
return (format_last_char == 'x' || format_last_char == 'X') ? ImGuiInputTextFlags_CharsHexadecimal : ImGuiInputTextFlags_CharsDecimal;
}
// Note that Drag/Slider functions are only forwarding the min/max values clamping values if the ImGuiSliderFlags_AlwaysClamp flag is set!
// This is intended: this way we allow CTRL+Click manual input to set a value out of bounds, for maximum flexibility.
// However this may not be ideal for all uses, as some user code may break on out of bound values.
bool ImGui::TempInputScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* p_data, const char* format, const void* p_clamp_min, const void* p_clamp_max)
{
char fmt_buf[32];
char data_buf[32];
format = ImParseFormatTrimDecorations(format, fmt_buf, IM_ARRAYSIZE(fmt_buf));
DataTypeFormatString(data_buf, IM_ARRAYSIZE(data_buf), data_type, p_data, format);
ImStrTrimBlanks(data_buf);
ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoMarkEdited;
flags |= InputScalar_DefaultCharsFilter(data_type, format);
bool value_changed = false;
if (TempInputText(bb, id, label, data_buf, IM_ARRAYSIZE(data_buf), flags))
{
// Backup old value
size_t data_type_size = DataTypeGetInfo(data_type)->Size;
ImGuiDataTypeTempStorage data_backup;
memcpy(&data_backup, p_data, data_type_size);
// Apply new value (or operations) then clamp
DataTypeApplyFromText(data_buf, data_type, p_data, format);
if (p_clamp_min || p_clamp_max)
{
if (p_clamp_min && p_clamp_max && DataTypeCompare(data_type, p_clamp_min, p_clamp_max) > 0)
ImSwap(p_clamp_min, p_clamp_max);
DataTypeClamp(data_type, p_data, p_clamp_min, p_clamp_max);
}
// Only mark as edited if new value is different
value_changed = memcmp(&data_backup, p_data, data_type_size) != 0;
if (value_changed)
MarkItemEdited(id);
}
return value_changed;
}
// Note: p_data, p_step, p_step_fast are _pointers_ to a memory address holding the data. For an Input widget, p_step and p_step_fast are optional.
// Read code of e.g. InputFloat(), InputInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_step, const void* p_step_fast, const char* format, ImGuiInputTextFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
ImGuiStyle& style = g.Style;
if (format == NULL)
format = DataTypeGetInfo(data_type)->PrintFmt;
char buf[64];
DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, p_data, format);
// Testing ActiveId as a minor optimization as filtering is not needed until active
if (g.ActiveId == 0 && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsScientific)) == 0)
flags |= InputScalar_DefaultCharsFilter(data_type, format);
flags |= ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoMarkEdited; // We call MarkItemEdited() ourselves by comparing the actual data rather than the string.
bool value_changed = false;
if (p_step != NULL)
{
const float button_size = GetFrameHeight();
BeginGroup(); // The only purpose of the group here is to allow the caller to query item data e.g. IsItemActive()
PushID(label);
SetNextItemWidth(ImMax(1.0f, CalcItemWidth() - (button_size + style.ItemInnerSpacing.x) * 2));
if (InputText("", buf, IM_ARRAYSIZE(buf), flags)) // PushId(label) + "" gives us the expected ID from outside point of view
value_changed = DataTypeApplyFromText(buf, data_type, p_data, format);
IMGUI_TEST_ENGINE_ITEM_INFO(g.LastItemData.ID, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Inputable);
// Step buttons
const ImVec2 backup_frame_padding = style.FramePadding;
style.FramePadding.x = style.FramePadding.y;
ImGuiButtonFlags button_flags = ImGuiButtonFlags_Repeat | ImGuiButtonFlags_DontClosePopups;
if (flags & ImGuiInputTextFlags_ReadOnly)
BeginDisabled();
SameLine(0, style.ItemInnerSpacing.x);
if (ButtonEx("-", ImVec2(button_size, button_size), button_flags))
{
DataTypeApplyOp(data_type, '-', p_data, p_data, g.IO.KeyCtrl && p_step_fast ? p_step_fast : p_step);
value_changed = true;
}
SameLine(0, style.ItemInnerSpacing.x);
if (ButtonEx("+", ImVec2(button_size, button_size), button_flags))
{
DataTypeApplyOp(data_type, '+', p_data, p_data, g.IO.KeyCtrl && p_step_fast ? p_step_fast : p_step);
value_changed = true;
}
if (flags & ImGuiInputTextFlags_ReadOnly)
EndDisabled();
const char* label_end = FindRenderedTextEnd(label);
if (label != label_end)
{
SameLine(0, style.ItemInnerSpacing.x);
TextEx(label, label_end);
}
style.FramePadding = backup_frame_padding;
PopID();
EndGroup();
}
else
{
if (InputText(label, buf, IM_ARRAYSIZE(buf), flags))
value_changed = DataTypeApplyFromText(buf, data_type, p_data, format);
}
if (value_changed)
MarkItemEdited(g.LastItemData.ID);
return value_changed;
}
bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_step, const void* p_step_fast, const char* format, ImGuiInputTextFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
bool value_changed = false;
BeginGroup();
PushID(label);
PushMultiItemsWidths(components, CalcItemWidth());
size_t type_size = GDataTypeInfo[data_type].Size;
for (int i = 0; i < components; i++)
{
PushID(i);
if (i > 0)
SameLine(0, g.Style.ItemInnerSpacing.x);
value_changed |= InputScalar("", data_type, p_data, p_step, p_step_fast, format, flags);
PopID();
PopItemWidth();
p_data = (void*)((char*)p_data + type_size);
}
PopID();
const char* label_end = FindRenderedTextEnd(label);
if (label != label_end)
{
SameLine(0.0f, g.Style.ItemInnerSpacing.x);
TextEx(label, label_end);
}
EndGroup();
return value_changed;
}
bool ImGui::InputFloat(const char* label, float* v, float step, float step_fast, const char* format, ImGuiInputTextFlags flags)
{
flags |= ImGuiInputTextFlags_CharsScientific;
return InputScalar(label, ImGuiDataType_Float, (void*)v, (void*)(step > 0.0f ? &step : NULL), (void*)(step_fast > 0.0f ? &step_fast : NULL), format, flags);
}
bool ImGui::InputFloat2(const char* label, float v[2], const char* format, ImGuiInputTextFlags flags)
{
return InputScalarN(label, ImGuiDataType_Float, v, 2, NULL, NULL, format, flags);
}
bool ImGui::InputFloat3(const char* label, float v[3], const char* format, ImGuiInputTextFlags flags)
{
return InputScalarN(label, ImGuiDataType_Float, v, 3, NULL, NULL, format, flags);
}
bool ImGui::InputFloat4(const char* label, float v[4], const char* format, ImGuiInputTextFlags flags)
{
return InputScalarN(label, ImGuiDataType_Float, v, 4, NULL, NULL, format, flags);
}
bool ImGui::InputInt(const char* label, int* v, int step, int step_fast, ImGuiInputTextFlags flags)
{
// Hexadecimal input provided as a convenience but the flag name is awkward. Typically you'd use InputText() to parse your own data, if you want to handle prefixes.
const char* format = (flags & ImGuiInputTextFlags_CharsHexadecimal) ? "%08X" : "%d";
return InputScalar(label, ImGuiDataType_S32, (void*)v, (void*)(step > 0 ? &step : NULL), (void*)(step_fast > 0 ? &step_fast : NULL), format, flags);
}
bool ImGui::InputInt2(const char* label, int v[2], ImGuiInputTextFlags flags)
{
return InputScalarN(label, ImGuiDataType_S32, v, 2, NULL, NULL, "%d", flags);
}
bool ImGui::InputInt3(const char* label, int v[3], ImGuiInputTextFlags flags)
{
return InputScalarN(label, ImGuiDataType_S32, v, 3, NULL, NULL, "%d", flags);
}
bool ImGui::InputInt4(const char* label, int v[4], ImGuiInputTextFlags flags)
{
return InputScalarN(label, ImGuiDataType_S32, v, 4, NULL, NULL, "%d", flags);
}
bool ImGui::InputDouble(const char* label, double* v, double step, double step_fast, const char* format, ImGuiInputTextFlags flags)
{
flags |= ImGuiInputTextFlags_CharsScientific;
return InputScalar(label, ImGuiDataType_Double, (void*)v, (void*)(step > 0.0 ? &step : NULL), (void*)(step_fast > 0.0 ? &step_fast : NULL), format, flags);
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: InputText, InputTextMultiline, InputTextWithHint
//-------------------------------------------------------------------------
// - InputText()
// - InputTextWithHint()
// - InputTextMultiline()
// - InputTextGetCharInfo() [Internal]
// - InputTextReindexLines() [Internal]
// - InputTextReindexLinesRange() [Internal]
// - InputTextEx() [Internal]
// - DebugNodeInputTextState() [Internal]
//-------------------------------------------------------------------------
bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
{
IM_ASSERT(!(flags & ImGuiInputTextFlags_Multiline)); // call InputTextMultiline()
return InputTextEx(label, NULL, buf, (int)buf_size, ImVec2(0, 0), flags, callback, user_data);
}
bool ImGui::InputTextMultiline(const char* label, char* buf, size_t buf_size, const ImVec2& size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
{
return InputTextEx(label, NULL, buf, (int)buf_size, size, flags | ImGuiInputTextFlags_Multiline, callback, user_data);
}
bool ImGui::InputTextWithHint(const char* label, const char* hint, char* buf, size_t buf_size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
{
IM_ASSERT(!(flags & ImGuiInputTextFlags_Multiline)); // call InputTextMultiline() or InputTextEx() manually if you need multi-line + hint.
return InputTextEx(label, hint, buf, (int)buf_size, ImVec2(0, 0), flags, callback, user_data);
}
static int InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end)
{
int line_count = 0;
const char* s = text_begin;
while (char c = *s++) // We are only matching for \n so we can ignore UTF-8 decoding
if (c == '\n')
line_count++;
s--;
if (s[0] != '\n' && s[0] != '\r')
line_count++;
*out_text_end = s;
return line_count;
}
static ImVec2 InputTextCalcTextSizeW(ImGuiContext* ctx, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining, ImVec2* out_offset, bool stop_on_new_line)
{
ImGuiContext& g = *ctx;
ImFont* font = g.Font;
const float line_height = g.FontSize;
const float scale = line_height / font->FontSize;
ImVec2 text_size = ImVec2(0, 0);
float line_width = 0.0f;
const ImWchar* s = text_begin;
while (s < text_end)
{
unsigned int c = (unsigned int)(*s++);
if (c == '\n')
{
text_size.x = ImMax(text_size.x, line_width);
text_size.y += line_height;
line_width = 0.0f;
if (stop_on_new_line)
break;
continue;
}
if (c == '\r')
continue;
const float char_width = font->GetCharAdvance((ImWchar)c) * scale;
line_width += char_width;
}
if (text_size.x < line_width)
text_size.x = line_width;
if (out_offset)
*out_offset = ImVec2(line_width, text_size.y + line_height); // offset allow for the possibility of sitting after a trailing \n
if (line_width > 0 || text_size.y == 0.0f) // whereas size.y will ignore the trailing \n
text_size.y += line_height;
if (remaining)
*remaining = s;
return text_size;
}
// Wrapper for stb_textedit.h to edit text (our wrapper is for: statically sized buffer, single-line, wchar characters. InputText converts between UTF-8 and wchar)
namespace ImStb
{
static int STB_TEXTEDIT_STRINGLEN(const ImGuiInputTextState* obj) { return obj->CurLenW; }
static ImWchar STB_TEXTEDIT_GETCHAR(const ImGuiInputTextState* obj, int idx) { return obj->TextW[idx]; }
static float STB_TEXTEDIT_GETWIDTH(ImGuiInputTextState* obj, int line_start_idx, int char_idx) { ImWchar c = obj->TextW[line_start_idx + char_idx]; if (c == '\n') return STB_TEXTEDIT_GETWIDTH_NEWLINE; ImGuiContext& g = *obj->Ctx; return g.Font->GetCharAdvance(c) * (g.FontSize / g.Font->FontSize); }
static int STB_TEXTEDIT_KEYTOTEXT(int key) { return key >= 0x200000 ? 0 : key; }
static ImWchar STB_TEXTEDIT_NEWLINE = '\n';
static void STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, ImGuiInputTextState* obj, int line_start_idx)
{
const ImWchar* text = obj->TextW.Data;
const ImWchar* text_remaining = NULL;
const ImVec2 size = InputTextCalcTextSizeW(obj->Ctx, text + line_start_idx, text + obj->CurLenW, &text_remaining, NULL, true);
r->x0 = 0.0f;
r->x1 = size.x;
r->baseline_y_delta = size.y;
r->ymin = 0.0f;
r->ymax = size.y;
r->num_chars = (int)(text_remaining - (text + line_start_idx));
}
// When ImGuiInputTextFlags_Password is set, we don't want actions such as CTRL+Arrow to leak the fact that underlying data are blanks or separators.
static bool is_separator(unsigned int c) { return ImCharIsBlankW(c) || c==',' || c==';' || c=='(' || c==')' || c=='{' || c=='}' || c=='[' || c==']' || c=='|' || c=='\n' || c=='\r'; }
static int is_word_boundary_from_right(ImGuiInputTextState* obj, int idx) { if (obj->Flags & ImGuiInputTextFlags_Password) return 0; return idx > 0 ? (is_separator(obj->TextW[idx - 1]) && !is_separator(obj->TextW[idx]) ) : 1; }
static int is_word_boundary_from_left(ImGuiInputTextState* obj, int idx) { if (obj->Flags & ImGuiInputTextFlags_Password) return 0; return idx > 0 ? (!is_separator(obj->TextW[idx - 1]) && is_separator(obj->TextW[idx])) : 1; }
static int STB_TEXTEDIT_MOVEWORDLEFT_IMPL(ImGuiInputTextState* obj, int idx) { idx--; while (idx >= 0 && !is_word_boundary_from_right(obj, idx)) idx--; return idx < 0 ? 0 : idx; }
static int STB_TEXTEDIT_MOVEWORDRIGHT_MAC(ImGuiInputTextState* obj, int idx) { idx++; int len = obj->CurLenW; while (idx < len && !is_word_boundary_from_left(obj, idx)) idx++; return idx > len ? len : idx; }
static int STB_TEXTEDIT_MOVEWORDRIGHT_WIN(ImGuiInputTextState* obj, int idx) { idx++; int len = obj->CurLenW; while (idx < len && !is_word_boundary_from_right(obj, idx)) idx++; return idx > len ? len : idx; }
static int STB_TEXTEDIT_MOVEWORDRIGHT_IMPL(ImGuiInputTextState* obj, int idx) { ImGuiContext& g = *obj->Ctx; if (g.IO.ConfigMacOSXBehaviors) return STB_TEXTEDIT_MOVEWORDRIGHT_MAC(obj, idx); else return STB_TEXTEDIT_MOVEWORDRIGHT_WIN(obj, idx); }
#define STB_TEXTEDIT_MOVEWORDLEFT STB_TEXTEDIT_MOVEWORDLEFT_IMPL // They need to be #define for stb_textedit.h
#define STB_TEXTEDIT_MOVEWORDRIGHT STB_TEXTEDIT_MOVEWORDRIGHT_IMPL
static void STB_TEXTEDIT_DELETECHARS(ImGuiInputTextState* obj, int pos, int n)
{
ImWchar* dst = obj->TextW.Data + pos;
// We maintain our buffer length in both UTF-8 and wchar formats
obj->Edited = true;
obj->CurLenA -= ImTextCountUtf8BytesFromStr(dst, dst + n);
obj->CurLenW -= n;
// Offset remaining text (FIXME-OPT: Use memmove)
const ImWchar* src = obj->TextW.Data + pos + n;
while (ImWchar c = *src++)
*dst++ = c;
*dst = '\0';
}
static bool STB_TEXTEDIT_INSERTCHARS(ImGuiInputTextState* obj, int pos, const ImWchar* new_text, int new_text_len)
{
const bool is_resizable = (obj->Flags & ImGuiInputTextFlags_CallbackResize) != 0;
const int text_len = obj->CurLenW;
IM_ASSERT(pos <= text_len);
const int new_text_len_utf8 = ImTextCountUtf8BytesFromStr(new_text, new_text + new_text_len);
if (!is_resizable && (new_text_len_utf8 + obj->CurLenA + 1 > obj->BufCapacityA))
return false;
// Grow internal buffer if needed
if (new_text_len + text_len + 1 > obj->TextW.Size)
{
if (!is_resizable)
return false;
IM_ASSERT(text_len < obj->TextW.Size);
obj->TextW.resize(text_len + ImClamp(new_text_len * 4, 32, ImMax(256, new_text_len)) + 1);
}
ImWchar* text = obj->TextW.Data;
if (pos != text_len)
memmove(text + pos + new_text_len, text + pos, (size_t)(text_len - pos) * sizeof(ImWchar));
memcpy(text + pos, new_text, (size_t)new_text_len * sizeof(ImWchar));
obj->Edited = true;
obj->CurLenW += new_text_len;
obj->CurLenA += new_text_len_utf8;
obj->TextW[obj->CurLenW] = '\0';
return true;
}
// We don't use an enum so we can build even with conflicting symbols (if another user of stb_textedit.h leak their STB_TEXTEDIT_K_* symbols)
#define STB_TEXTEDIT_K_LEFT 0x200000 // keyboard input to move cursor left
#define STB_TEXTEDIT_K_RIGHT 0x200001 // keyboard input to move cursor right
#define STB_TEXTEDIT_K_UP 0x200002 // keyboard input to move cursor up
#define STB_TEXTEDIT_K_DOWN 0x200003 // keyboard input to move cursor down
#define STB_TEXTEDIT_K_LINESTART 0x200004 // keyboard input to move cursor to start of line
#define STB_TEXTEDIT_K_LINEEND 0x200005 // keyboard input to move cursor to end of line
#define STB_TEXTEDIT_K_TEXTSTART 0x200006 // keyboard input to move cursor to start of text
#define STB_TEXTEDIT_K_TEXTEND 0x200007 // keyboard input to move cursor to end of text
#define STB_TEXTEDIT_K_DELETE 0x200008 // keyboard input to delete selection or character under cursor
#define STB_TEXTEDIT_K_BACKSPACE 0x200009 // keyboard input to delete selection or character left of cursor
#define STB_TEXTEDIT_K_UNDO 0x20000A // keyboard input to perform undo
#define STB_TEXTEDIT_K_REDO 0x20000B // keyboard input to perform redo
#define STB_TEXTEDIT_K_WORDLEFT 0x20000C // keyboard input to move cursor left one word
#define STB_TEXTEDIT_K_WORDRIGHT 0x20000D // keyboard input to move cursor right one word
#define STB_TEXTEDIT_K_PGUP 0x20000E // keyboard input to move cursor up a page
#define STB_TEXTEDIT_K_PGDOWN 0x20000F // keyboard input to move cursor down a page
#define STB_TEXTEDIT_K_SHIFT 0x400000
#define STB_TEXTEDIT_IMPLEMENTATION
#include "imstb_textedit.h"
// stb_textedit internally allows for a single undo record to do addition and deletion, but somehow, calling
// the stb_textedit_paste() function creates two separate records, so we perform it manually. (FIXME: Report to nothings/stb?)
static void stb_textedit_replace(ImGuiInputTextState* str, STB_TexteditState* state, const STB_TEXTEDIT_CHARTYPE* text, int text_len)
{
stb_text_makeundo_replace(str, state, 0, str->CurLenW, text_len);
ImStb::STB_TEXTEDIT_DELETECHARS(str, 0, str->CurLenW);
state->cursor = state->select_start = state->select_end = 0;
if (text_len <= 0)
return;
if (ImStb::STB_TEXTEDIT_INSERTCHARS(str, 0, text, text_len))
{
state->cursor = state->select_start = state->select_end = text_len;
state->has_preferred_x = 0;
return;
}
IM_ASSERT(0); // Failed to insert character, normally shouldn't happen because of how we currently use stb_textedit_replace()
}
} // namespace ImStb
void ImGuiInputTextState::OnKeyPressed(int key)
{
stb_textedit_key(this, &Stb, key);
CursorFollow = true;
CursorAnimReset();
}
ImGuiInputTextCallbackData::ImGuiInputTextCallbackData()
{
memset(this, 0, sizeof(*this));
}
// Public API to manipulate UTF-8 text
// We expose UTF-8 to the user (unlike the STB_TEXTEDIT_* functions which are manipulating wchar)
// FIXME: The existence of this rarely exercised code path is a bit of a nuisance.
void ImGuiInputTextCallbackData::DeleteChars(int pos, int bytes_count)
{
IM_ASSERT(pos + bytes_count <= BufTextLen);
char* dst = Buf + pos;
const char* src = Buf + pos + bytes_count;
while (char c = *src++)
*dst++ = c;
*dst = '\0';
if (CursorPos >= pos + bytes_count)
CursorPos -= bytes_count;
else if (CursorPos >= pos)
CursorPos = pos;
SelectionStart = SelectionEnd = CursorPos;
BufDirty = true;
BufTextLen -= bytes_count;
}
void ImGuiInputTextCallbackData::InsertChars(int pos, const char* new_text, const char* new_text_end)
{
const bool is_resizable = (Flags & ImGuiInputTextFlags_CallbackResize) != 0;
const int new_text_len = new_text_end ? (int)(new_text_end - new_text) : (int)strlen(new_text);
if (new_text_len + BufTextLen >= BufSize)
{
if (!is_resizable)
return;
// Contrary to STB_TEXTEDIT_INSERTCHARS() this is working in the UTF8 buffer, hence the mildly similar code (until we remove the U16 buffer altogether!)
ImGuiContext& g = *Ctx;
ImGuiInputTextState* edit_state = &g.InputTextState;
IM_ASSERT(edit_state->ID != 0 && g.ActiveId == edit_state->ID);
IM_ASSERT(Buf == edit_state->TextA.Data);
int new_buf_size = BufTextLen + ImClamp(new_text_len * 4, 32, ImMax(256, new_text_len)) + 1;
edit_state->TextA.reserve(new_buf_size + 1);
Buf = edit_state->TextA.Data;
BufSize = edit_state->BufCapacityA = new_buf_size;
}
if (BufTextLen != pos)
memmove(Buf + pos + new_text_len, Buf + pos, (size_t)(BufTextLen - pos));
memcpy(Buf + pos, new_text, (size_t)new_text_len * sizeof(char));
Buf[BufTextLen + new_text_len] = '\0';
if (CursorPos >= pos)
CursorPos += new_text_len;
SelectionStart = SelectionEnd = CursorPos;
BufDirty = true;
BufTextLen += new_text_len;
}
// Return false to discard a character.
static bool InputTextFilterCharacter(unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, ImGuiInputSource input_source)
{
IM_ASSERT(input_source == ImGuiInputSource_Keyboard || input_source == ImGuiInputSource_Clipboard);
unsigned int c = *p_char;
// Filter non-printable (NB: isprint is unreliable! see #2467)
bool apply_named_filters = true;
if (c < 0x20)
{
bool pass = false;
pass |= (c == '\n' && (flags & ImGuiInputTextFlags_Multiline)); // Note that an Enter KEY will emit \r and be ignored (we poll for KEY in InputText() code)
pass |= (c == '\t' && (flags & ImGuiInputTextFlags_AllowTabInput));
if (!pass)
return false;
apply_named_filters = false; // Override named filters below so newline and tabs can still be inserted.
}
if (input_source != ImGuiInputSource_Clipboard)
{
// We ignore Ascii representation of delete (emitted from Backspace on OSX, see #2578, #2817)
if (c == 127)
return false;
// Filter private Unicode range. GLFW on OSX seems to send private characters for special keys like arrow keys (FIXME)
if (c >= 0xE000 && c <= 0xF8FF)
return false;
}
// Filter Unicode ranges we are not handling in this build
if (c > IM_UNICODE_CODEPOINT_MAX)
return false;
// Generic named filters
if (apply_named_filters && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase | ImGuiInputTextFlags_CharsNoBlank | ImGuiInputTextFlags_CharsScientific)))
{
// The libc allows overriding locale, with e.g. 'setlocale(LC_NUMERIC, "de_DE.UTF-8");' which affect the output/input of printf/scanf to use e.g. ',' instead of '.'.
// The standard mandate that programs starts in the "C" locale where the decimal point is '.'.
// We don't really intend to provide widespread support for it, but out of empathy for people stuck with using odd API, we support the bare minimum aka overriding the decimal point.
// Change the default decimal_point with:
// ImGui::GetCurrentContext()->PlatformLocaleDecimalPoint = *localeconv()->decimal_point;
// Users of non-default decimal point (in particular ',') may be affected by word-selection logic (is_word_boundary_from_right/is_word_boundary_from_left) functions.
ImGuiContext& g = *GImGui;
const unsigned c_decimal_point = (unsigned int)g.PlatformLocaleDecimalPoint;
// Full-width -> half-width conversion for numeric fields (https://en.wikipedia.org/wiki/Halfwidth_and_Fullwidth_Forms_(Unicode_block)
// While this is mostly convenient, this has the side-effect for uninformed users accidentally inputting full-width characters that they may
// scratch their head as to why it works in numerical fields vs in generic text fields it would require support in the font.
if (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsScientific | ImGuiInputTextFlags_CharsHexadecimal))
if (c >= 0xFF01 && c <= 0xFF5E)
c = c - 0xFF01 + 0x21;
// Allow 0-9 . - + * /
if (flags & ImGuiInputTextFlags_CharsDecimal)
if (!(c >= '0' && c <= '9') && (c != c_decimal_point) && (c != '-') && (c != '+') && (c != '*') && (c != '/'))
return false;
// Allow 0-9 . - + * / e E
if (flags & ImGuiInputTextFlags_CharsScientific)
if (!(c >= '0' && c <= '9') && (c != c_decimal_point) && (c != '-') && (c != '+') && (c != '*') && (c != '/') && (c != 'e') && (c != 'E'))
return false;
// Allow 0-9 a-F A-F
if (flags & ImGuiInputTextFlags_CharsHexadecimal)
if (!(c >= '0' && c <= '9') && !(c >= 'a' && c <= 'f') && !(c >= 'A' && c <= 'F'))
return false;
// Turn a-z into A-Z
if (flags & ImGuiInputTextFlags_CharsUppercase)
if (c >= 'a' && c <= 'z')
c += (unsigned int)('A' - 'a');
if (flags & ImGuiInputTextFlags_CharsNoBlank)
if (ImCharIsBlankW(c))
return false;
*p_char = c;
}
// Custom callback filter
if (flags & ImGuiInputTextFlags_CallbackCharFilter)
{
ImGuiContext& g = *GImGui;
ImGuiInputTextCallbackData callback_data;
callback_data.Ctx = &g;
callback_data.EventFlag = ImGuiInputTextFlags_CallbackCharFilter;
callback_data.EventChar = (ImWchar)c;
callback_data.Flags = flags;
callback_data.UserData = user_data;
if (callback(&callback_data) != 0)
return false;
*p_char = callback_data.EventChar;
if (!callback_data.EventChar)
return false;
}
return true;
}
// Find the shortest single replacement we can make to get the new text from the old text.
// Important: needs to be run before TextW is rewritten with the new characters because calling STB_TEXTEDIT_GETCHAR() at the end.
// FIXME: Ideally we should transition toward (1) making InsertChars()/DeleteChars() update undo-stack (2) discourage (and keep reconcile) or obsolete (and remove reconcile) accessing buffer directly.
static void InputTextReconcileUndoStateAfterUserCallback(ImGuiInputTextState* state, const char* new_buf_a, int new_length_a)
{
ImGuiContext& g = *GImGui;
const ImWchar* old_buf = state->TextW.Data;
const int old_length = state->CurLenW;
const int new_length = ImTextCountCharsFromUtf8(new_buf_a, new_buf_a + new_length_a);
g.TempBuffer.reserve_discard((new_length + 1) * sizeof(ImWchar));
ImWchar* new_buf = (ImWchar*)(void*)g.TempBuffer.Data;
ImTextStrFromUtf8(new_buf, new_length + 1, new_buf_a, new_buf_a + new_length_a);
const int shorter_length = ImMin(old_length, new_length);
int first_diff;
for (first_diff = 0; first_diff < shorter_length; first_diff++)
if (old_buf[first_diff] != new_buf[first_diff])
break;
if (first_diff == old_length && first_diff == new_length)
return;
int old_last_diff = old_length - 1;
int new_last_diff = new_length - 1;
for (; old_last_diff >= first_diff && new_last_diff >= first_diff; old_last_diff--, new_last_diff--)
if (old_buf[old_last_diff] != new_buf[new_last_diff])
break;
const int insert_len = new_last_diff - first_diff + 1;
const int delete_len = old_last_diff - first_diff + 1;
if (insert_len > 0 || delete_len > 0)
if (STB_TEXTEDIT_CHARTYPE* p = stb_text_createundo(&state->Stb.undostate, first_diff, delete_len, insert_len))
for (int i = 0; i < delete_len; i++)
p[i] = ImStb::STB_TEXTEDIT_GETCHAR(state, first_diff + i);
}
// Edit a string of text
// - buf_size account for the zero-terminator, so a buf_size of 6 can hold "Hello" but not "Hello!".
// This is so we can easily call InputText() on static arrays using ARRAYSIZE() and to match
// Note that in std::string world, capacity() would omit 1 byte used by the zero-terminator.
// - When active, hold on a privately held copy of the text (and apply back to 'buf'). So changing 'buf' while the InputText is active has no effect.
// - If you want to use ImGui::InputText() with std::string, see misc/cpp/imgui_stdlib.h
// (FIXME: Rather confusing and messy function, among the worse part of our codebase, expecting to rewrite a V2 at some point.. Partly because we are
// doing UTF8 > U16 > UTF8 conversions on the go to easily interface with stb_textedit. Ideally should stay in UTF-8 all the time. See https://github.com/nothings/stb/issues/188)
bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* callback_user_data)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
IM_ASSERT(buf != NULL && buf_size >= 0);
IM_ASSERT(!((flags & ImGuiInputTextFlags_CallbackHistory) && (flags & ImGuiInputTextFlags_Multiline))); // Can't use both together (they both use up/down keys)
IM_ASSERT(!((flags & ImGuiInputTextFlags_CallbackCompletion) && (flags & ImGuiInputTextFlags_AllowTabInput))); // Can't use both together (they both use tab key)
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
const ImGuiStyle& style = g.Style;
const bool RENDER_SELECTION_WHEN_INACTIVE = false;
const bool is_multiline = (flags & ImGuiInputTextFlags_Multiline) != 0;
const bool is_readonly = (flags & ImGuiInputTextFlags_ReadOnly) != 0;
const bool is_password = (flags & ImGuiInputTextFlags_Password) != 0;
const bool is_undoable = (flags & ImGuiInputTextFlags_NoUndoRedo) == 0;
const bool is_resizable = (flags & ImGuiInputTextFlags_CallbackResize) != 0;
if (is_resizable)
IM_ASSERT(callback != NULL); // Must provide a callback if you set the ImGuiInputTextFlags_CallbackResize flag!
if (is_multiline) // Open group before calling GetID() because groups tracks id created within their scope (including the scrollbar)
BeginGroup();
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImVec2 frame_size = CalcItemSize(size_arg, CalcItemWidth(), (is_multiline ? g.FontSize * 8.0f : label_size.y) + style.FramePadding.y * 2.0f); // Arbitrary default of 8 lines high for multi-line
const ImVec2 total_size = ImVec2(frame_size.x + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), frame_size.y);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
const ImRect total_bb(frame_bb.Min, frame_bb.Min + total_size);
ImGuiWindow* draw_window = window;
ImVec2 inner_size = frame_size;
ImGuiItemStatusFlags item_status_flags = 0;
ImGuiLastItemData item_data_backup;
if (is_multiline)
{
ImVec2 backup_pos = window->DC.CursorPos;
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
{
EndGroup();
return false;
}
item_status_flags = g.LastItemData.StatusFlags;
item_data_backup = g.LastItemData;
window->DC.CursorPos = backup_pos;
// We reproduce the contents of BeginChildFrame() in order to provide 'label' so our window internal data are easier to read/debug.
// FIXME-NAV: Pressing NavActivate will trigger general child activation right before triggering our own below. Harmless but bizarre.
PushStyleColor(ImGuiCol_ChildBg, style.Colors[ImGuiCol_FrameBg]);
PushStyleVar(ImGuiStyleVar_ChildRounding, style.FrameRounding);
PushStyleVar(ImGuiStyleVar_ChildBorderSize, style.FrameBorderSize);
PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0)); // Ensure no clip rect so mouse hover can reach FramePadding edges
bool child_visible = BeginChildEx(label, id, frame_bb.GetSize(), true, ImGuiWindowFlags_NoMove);
PopStyleVar(3);
PopStyleColor();
if (!child_visible)
{
EndChild();
EndGroup();
return false;
}
draw_window = g.CurrentWindow; // Child window
draw_window->DC.NavLayersActiveMaskNext |= (1 << draw_window->DC.NavLayerCurrent); // This is to ensure that EndChild() will display a navigation highlight so we can "enter" into it.
draw_window->DC.CursorPos += style.FramePadding;
inner_size.x -= draw_window->ScrollbarSizes.x;
}
else
{
// Support for internal ImGuiInputTextFlags_MergedItem flag, which could be redesigned as an ItemFlags if needed (with test performed in ItemAdd)
ItemSize(total_bb, style.FramePadding.y);
if (!(flags & ImGuiInputTextFlags_MergedItem))
if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
return false;
item_status_flags = g.LastItemData.StatusFlags;
}
const bool hovered = ItemHoverable(frame_bb, id);
if (hovered)
g.MouseCursor = ImGuiMouseCursor_TextInput;
// We are only allowed to access the state if we are already the active widget.
ImGuiInputTextState* state = GetInputTextState(id);
const bool input_requested_by_tabbing = (item_status_flags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
const bool input_requested_by_nav = (g.ActiveId != id) && ((g.NavActivateId == id) && ((g.NavActivateFlags & ImGuiActivateFlags_PreferInput) || (g.NavInputSource == ImGuiInputSource_Keyboard)));
const bool user_clicked = hovered && io.MouseClicked[0];
const bool user_scroll_finish = is_multiline && state != NULL && g.ActiveId == 0 && g.ActiveIdPreviousFrame == GetWindowScrollbarID(draw_window, ImGuiAxis_Y);
const bool user_scroll_active = is_multiline && state != NULL && g.ActiveId == GetWindowScrollbarID(draw_window, ImGuiAxis_Y);
bool clear_active_id = false;
bool select_all = false;
float scroll_y = is_multiline ? draw_window->Scroll.y : FLT_MAX;
const bool init_changed_specs = (state != NULL && state->Stb.single_line != !is_multiline);
const bool init_make_active = (user_clicked || user_scroll_finish || input_requested_by_nav || input_requested_by_tabbing);
const bool init_state = (init_make_active || user_scroll_active);
if ((init_state && g.ActiveId != id) || init_changed_specs)
{
// Access state even if we don't own it yet.
state = &g.InputTextState;
state->CursorAnimReset();
// Take a copy of the initial buffer value (both in original UTF-8 format and converted to wchar)
// From the moment we focused we are ignoring the content of 'buf' (unless we are in read-only mode)
const int buf_len = (int)strlen(buf);
state->InitialTextA.resize(buf_len + 1); // UTF-8. we use +1 to make sure that .Data is always pointing to at least an empty string.
memcpy(state->InitialTextA.Data, buf, buf_len + 1);
// Preserve cursor position and undo/redo stack if we come back to same widget
// FIXME: Since we reworked this on 2022/06, may want to differenciate recycle_cursor vs recycle_undostate?
bool recycle_state = (state->ID == id && !init_changed_specs);
if (recycle_state && (state->CurLenA != buf_len || (state->TextAIsValid && strncmp(state->TextA.Data, buf, buf_len) != 0)))
recycle_state = false;
// Start edition
const char* buf_end = NULL;
state->ID = id;
state->TextW.resize(buf_size + 1); // wchar count <= UTF-8 count. we use +1 to make sure that .Data is always pointing to at least an empty string.
state->TextA.resize(0);
state->TextAIsValid = false; // TextA is not valid yet (we will display buf until then)
state->CurLenW = ImTextStrFromUtf8(state->TextW.Data, buf_size, buf, NULL, &buf_end);
state->CurLenA = (int)(buf_end - buf); // We can't get the result from ImStrncpy() above because it is not UTF-8 aware. Here we'll cut off malformed UTF-8.
if (recycle_state)
{
// Recycle existing cursor/selection/undo stack but clamp position
// Note a single mouse click will override the cursor/position immediately by calling stb_textedit_click handler.
state->CursorClamp();
}
else
{
state->ScrollX = 0.0f;
stb_textedit_initialize_state(&state->Stb, !is_multiline);
}
if (!is_multiline)
{
if (flags & ImGuiInputTextFlags_AutoSelectAll)
select_all = true;
if (input_requested_by_nav && (!recycle_state || !(g.NavActivateFlags & ImGuiActivateFlags_TryToPreserveState)))
select_all = true;
if (input_requested_by_tabbing || (user_clicked && io.KeyCtrl))
select_all = true;
}
if (flags & ImGuiInputTextFlags_AlwaysOverwrite)
state->Stb.insert_mode = 1; // stb field name is indeed incorrect (see #2863)
}
const bool is_osx = io.ConfigMacOSXBehaviors;
if (g.ActiveId != id && init_make_active)
{
IM_ASSERT(state && state->ID == id);
SetActiveID(id, window);
SetFocusID(id, window);
FocusWindow(window);
}
if (g.ActiveId == id)
{
// Declare some inputs, the other are registered and polled via Shortcut() routing system.
if (user_clicked)
SetKeyOwner(ImGuiKey_MouseLeft, id);
g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
if (is_multiline || (flags & ImGuiInputTextFlags_CallbackHistory))
g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down);
SetKeyOwner(ImGuiKey_Home, id);
SetKeyOwner(ImGuiKey_End, id);
if (is_multiline)
{
SetKeyOwner(ImGuiKey_PageUp, id);
SetKeyOwner(ImGuiKey_PageDown, id);
}
if (is_osx)
SetKeyOwner(ImGuiMod_Alt, id);
if (flags & (ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_AllowTabInput)) // Disable keyboard tabbing out as we will use the \t character.
SetShortcutRouting(ImGuiKey_Tab, id);
}
// We have an edge case if ActiveId was set through another widget (e.g. widget being swapped), clear id immediately (don't wait until the end of the function)
if (g.ActiveId == id && state == NULL)
ClearActiveID();
// Release focus when we click outside
if (g.ActiveId == id && io.MouseClicked[0] && !init_state && !init_make_active) //-V560
clear_active_id = true;
// Lock the decision of whether we are going to take the path displaying the cursor or selection
bool render_cursor = (g.ActiveId == id) || (state && user_scroll_active);
bool render_selection = state && (state->HasSelection() || select_all) && (RENDER_SELECTION_WHEN_INACTIVE || render_cursor);
bool value_changed = false;
bool validated = false;
// When read-only we always use the live data passed to the function
// FIXME-OPT: Because our selection/cursor code currently needs the wide text we need to convert it when active, which is not ideal :(
if (is_readonly && state != NULL && (render_cursor || render_selection))
{
const char* buf_end = NULL;
state->TextW.resize(buf_size + 1);
state->CurLenW = ImTextStrFromUtf8(state->TextW.Data, state->TextW.Size, buf, NULL, &buf_end);
state->CurLenA = (int)(buf_end - buf);
state->CursorClamp();
render_selection &= state->HasSelection();
}
// Select the buffer to render.
const bool buf_display_from_state = (render_cursor || render_selection || g.ActiveId == id) && !is_readonly && state && state->TextAIsValid;
const bool is_displaying_hint = (hint != NULL && (buf_display_from_state ? state->TextA.Data : buf)[0] == 0);
// Password pushes a temporary font with only a fallback glyph
if (is_password && !is_displaying_hint)
{
const ImFontGlyph* glyph = g.Font->FindGlyph('*');
ImFont* password_font = &g.InputTextPasswordFont;
password_font->FontSize = g.Font->FontSize;
password_font->Scale = g.Font->Scale;
password_font->Ascent = g.Font->Ascent;
password_font->Descent = g.Font->Descent;
password_font->ContainerAtlas = g.Font->ContainerAtlas;
password_font->FallbackGlyph = glyph;
password_font->FallbackAdvanceX = glyph->AdvanceX;
IM_ASSERT(password_font->Glyphs.empty() && password_font->IndexAdvanceX.empty() && password_font->IndexLookup.empty());
PushFont(password_font);
}
// Process mouse inputs and character inputs
int backup_current_text_length = 0;
if (g.ActiveId == id)
{
IM_ASSERT(state != NULL);
backup_current_text_length = state->CurLenA;
state->Edited = false;
state->BufCapacityA = buf_size;
state->Flags = flags;
// Although we are active we don't prevent mouse from hovering other elements unless we are interacting right now with the widget.
// Down the line we should have a cleaner library-wide concept of Selected vs Active.
g.ActiveIdAllowOverlap = !io.MouseDown[0];
g.WantTextInputNextFrame = 1;
// Edit in progress
const float mouse_x = (io.MousePos.x - frame_bb.Min.x - style.FramePadding.x) + state->ScrollX;
const float mouse_y = (is_multiline ? (io.MousePos.y - draw_window->DC.CursorPos.y) : (g.FontSize * 0.5f));
if (select_all)
{
state->SelectAll();
state->SelectedAllMouseLock = true;
}
else if (hovered && io.MouseClickedCount[0] >= 2 && !io.KeyShift)
{
stb_textedit_click(state, &state->Stb, mouse_x, mouse_y);
const int multiclick_count = (io.MouseClickedCount[0] - 2);
if ((multiclick_count % 2) == 0)
{
// Double-click: Select word
// We always use the "Mac" word advance for double-click select vs CTRL+Right which use the platform dependent variant:
// FIXME: There are likely many ways to improve this behavior, but there's no "right" behavior (depends on use-case, software, OS)
const bool is_bol = (state->Stb.cursor == 0) || ImStb::STB_TEXTEDIT_GETCHAR(state, state->Stb.cursor - 1) == '\n';
if (STB_TEXT_HAS_SELECTION(&state->Stb) || !is_bol)
state->OnKeyPressed(STB_TEXTEDIT_K_WORDLEFT);
//state->OnKeyPressed(STB_TEXTEDIT_K_WORDRIGHT | STB_TEXTEDIT_K_SHIFT);
if (!STB_TEXT_HAS_SELECTION(&state->Stb))
ImStb::stb_textedit_prep_selection_at_cursor(&state->Stb);
state->Stb.cursor = ImStb::STB_TEXTEDIT_MOVEWORDRIGHT_MAC(state, state->Stb.cursor);
state->Stb.select_end = state->Stb.cursor;
ImStb::stb_textedit_clamp(state, &state->Stb);
}
else
{
// Triple-click: Select line
const bool is_eol = ImStb::STB_TEXTEDIT_GETCHAR(state, state->Stb.cursor) == '\n';
state->OnKeyPressed(STB_TEXTEDIT_K_LINESTART);
state->OnKeyPressed(STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_SHIFT);
state->OnKeyPressed(STB_TEXTEDIT_K_RIGHT | STB_TEXTEDIT_K_SHIFT);
if (!is_eol && is_multiline)
{
ImSwap(state->Stb.select_start, state->Stb.select_end);
state->Stb.cursor = state->Stb.select_end;
}
state->CursorFollow = false;
}
state->CursorAnimReset();
}
else if (io.MouseClicked[0] && !state->SelectedAllMouseLock)
{
if (hovered)
{
if (io.KeyShift)
stb_textedit_drag(state, &state->Stb, mouse_x, mouse_y);
else
stb_textedit_click(state, &state->Stb, mouse_x, mouse_y);
state->CursorAnimReset();
}
}
else if (io.MouseDown[0] && !state->SelectedAllMouseLock && (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f))
{
stb_textedit_drag(state, &state->Stb, mouse_x, mouse_y);
state->CursorAnimReset();
state->CursorFollow = true;
}
if (state->SelectedAllMouseLock && !io.MouseDown[0])
state->SelectedAllMouseLock = false;
// We expect backends to emit a Tab key but some also emit a Tab character which we ignore (#2467, #1336)
// (For Tab and Enter: Win32/SFML/Allegro are sending both keys and chars, GLFW and SDL are only sending keys. For Space they all send all threes)
if ((flags & ImGuiInputTextFlags_AllowTabInput) && Shortcut(ImGuiKey_Tab, id) && !is_readonly)
{
unsigned int c = '\t'; // Insert TAB
if (InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
state->OnKeyPressed((int)c);
}
// Process regular text input (before we check for Return because using some IME will effectively send a Return?)
// We ignore CTRL inputs, but need to allow ALT+CTRL as some keyboards (e.g. German) use AltGR (which _is_ Alt+Ctrl) to input certain characters.
const bool ignore_char_inputs = (io.KeyCtrl && !io.KeyAlt) || (is_osx && io.KeySuper);
if (io.InputQueueCharacters.Size > 0)
{
if (!ignore_char_inputs && !is_readonly && !input_requested_by_nav)
for (int n = 0; n < io.InputQueueCharacters.Size; n++)
{
// Insert character if they pass filtering
unsigned int c = (unsigned int)io.InputQueueCharacters[n];
if (c == '\t') // Skip Tab, see above.
continue;
if (InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
state->OnKeyPressed((int)c);
}
// Consume characters
io.InputQueueCharacters.resize(0);
}
}
// Process other shortcuts/key-presses
bool revert_edit = false;
if (g.ActiveId == id && !g.ActiveIdIsJustActivated && !clear_active_id)
{
IM_ASSERT(state != NULL);
const int row_count_per_page = ImMax((int)((inner_size.y - style.FramePadding.y) / g.FontSize), 1);
state->Stb.row_count_per_page = row_count_per_page;
const int k_mask = (io.KeyShift ? STB_TEXTEDIT_K_SHIFT : 0);
const bool is_wordmove_key_down = is_osx ? io.KeyAlt : io.KeyCtrl; // OS X style: Text editing cursor movement using Alt instead of Ctrl
const bool is_startend_key_down = is_osx && io.KeySuper && !io.KeyCtrl && !io.KeyAlt; // OS X style: Line/Text Start and End using Cmd+Arrows instead of Home/End
// Using Shortcut() with ImGuiInputFlags_RouteFocused (default policy) to allow routing operations for other code (e.g. calling window trying to use CTRL+A and CTRL+B: formet would be handled by InputText)
// Otherwise we could simply assume that we own the keys as we are active.
const ImGuiInputFlags f_repeat = ImGuiInputFlags_Repeat;
const bool is_cut = (Shortcut(ImGuiMod_Shortcut | ImGuiKey_X, id, f_repeat) || Shortcut(ImGuiMod_Shift | ImGuiKey_Delete, id, f_repeat)) && !is_readonly && !is_password && (!is_multiline || state->HasSelection());
const bool is_copy = (Shortcut(ImGuiMod_Shortcut | ImGuiKey_C, id) || Shortcut(ImGuiMod_Ctrl | ImGuiKey_Insert, id)) && !is_password && (!is_multiline || state->HasSelection());
const bool is_paste = (Shortcut(ImGuiMod_Shortcut | ImGuiKey_V, id, f_repeat) || Shortcut(ImGuiMod_Shift | ImGuiKey_Insert, id, f_repeat)) && !is_readonly;
const bool is_undo = (Shortcut(ImGuiMod_Shortcut | ImGuiKey_Z, id, f_repeat)) && !is_readonly && is_undoable;
const bool is_redo = (Shortcut(ImGuiMod_Shortcut | ImGuiKey_Y, id, f_repeat) || (is_osx && Shortcut(ImGuiMod_Shortcut | ImGuiMod_Shift | ImGuiKey_Z, id, f_repeat))) && !is_readonly && is_undoable;
const bool is_select_all = Shortcut(ImGuiMod_Shortcut | ImGuiKey_A, id);
// We allow validate/cancel with Nav source (gamepad) to makes it easier to undo an accidental NavInput press with no keyboard wired, but otherwise it isn't very useful.
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
const bool is_enter_pressed = IsKeyPressed(ImGuiKey_Enter, true) || IsKeyPressed(ImGuiKey_KeypadEnter, true);
const bool is_gamepad_validate = nav_gamepad_active && (IsKeyPressed(ImGuiKey_NavGamepadActivate, false) || IsKeyPressed(ImGuiKey_NavGamepadInput, false));
const bool is_cancel = Shortcut(ImGuiKey_Escape, id, f_repeat) || (nav_gamepad_active && Shortcut(ImGuiKey_NavGamepadCancel, id, f_repeat));
// FIXME: Should use more Shortcut() and reduce IsKeyPressed()+SetKeyOwner(), but requires modifiers combination to be taken account of.
if (IsKeyPressed(ImGuiKey_LeftArrow)) { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINESTART : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDLEFT : STB_TEXTEDIT_K_LEFT) | k_mask); }
else if (IsKeyPressed(ImGuiKey_RightArrow)) { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINEEND : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDRIGHT : STB_TEXTEDIT_K_RIGHT) | k_mask); }
else if (IsKeyPressed(ImGuiKey_UpArrow) && is_multiline) { if (io.KeyCtrl) SetScrollY(draw_window, ImMax(draw_window->Scroll.y - g.FontSize, 0.0f)); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTSTART : STB_TEXTEDIT_K_UP) | k_mask); }
else if (IsKeyPressed(ImGuiKey_DownArrow) && is_multiline) { if (io.KeyCtrl) SetScrollY(draw_window, ImMin(draw_window->Scroll.y + g.FontSize, GetScrollMaxY())); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTEND : STB_TEXTEDIT_K_DOWN) | k_mask); }
else if (IsKeyPressed(ImGuiKey_PageUp) && is_multiline) { state->OnKeyPressed(STB_TEXTEDIT_K_PGUP | k_mask); scroll_y -= row_count_per_page * g.FontSize; }
else if (IsKeyPressed(ImGuiKey_PageDown) && is_multiline) { state->OnKeyPressed(STB_TEXTEDIT_K_PGDOWN | k_mask); scroll_y += row_count_per_page * g.FontSize; }
else if (IsKeyPressed(ImGuiKey_Home)) { state->OnKeyPressed(io.KeyCtrl ? STB_TEXTEDIT_K_TEXTSTART | k_mask : STB_TEXTEDIT_K_LINESTART | k_mask); }
else if (IsKeyPressed(ImGuiKey_End)) { state->OnKeyPressed(io.KeyCtrl ? STB_TEXTEDIT_K_TEXTEND | k_mask : STB_TEXTEDIT_K_LINEEND | k_mask); }
else if (IsKeyPressed(ImGuiKey_Delete) && !is_readonly && !is_cut)
{
if (!state->HasSelection())
{
// OSX doesn't seem to have Super+Delete to delete until end-of-line, so we don't emulate that (as opposed to Super+Backspace)
if (is_wordmove_key_down)
state->OnKeyPressed(STB_TEXTEDIT_K_WORDRIGHT | STB_TEXTEDIT_K_SHIFT);
}
state->OnKeyPressed(STB_TEXTEDIT_K_DELETE | k_mask);
}
else if (IsKeyPressed(ImGuiKey_Backspace) && !is_readonly)
{
if (!state->HasSelection())
{
if (is_wordmove_key_down)
state->OnKeyPressed(STB_TEXTEDIT_K_WORDLEFT | STB_TEXTEDIT_K_SHIFT);
else if (is_osx && io.KeySuper && !io.KeyAlt && !io.KeyCtrl)
state->OnKeyPressed(STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_SHIFT);
}
state->OnKeyPressed(STB_TEXTEDIT_K_BACKSPACE | k_mask);
}
else if (is_enter_pressed || is_gamepad_validate)
{
// Determine if we turn Enter into a \n character
bool ctrl_enter_for_new_line = (flags & ImGuiInputTextFlags_CtrlEnterForNewLine) != 0;
if (!is_multiline || is_gamepad_validate || (ctrl_enter_for_new_line && !io.KeyCtrl) || (!ctrl_enter_for_new_line && io.KeyCtrl))
{
validated = true;
if (io.ConfigInputTextEnterKeepActive && !is_multiline)
state->SelectAll(); // No need to scroll
else
clear_active_id = true;
}
else if (!is_readonly)
{
unsigned int c = '\n'; // Insert new line
if (InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
state->OnKeyPressed((int)c);
}
}
else if (is_cancel)
{
if (flags & ImGuiInputTextFlags_EscapeClearsAll)
{
if (state->CurLenA > 0)
{
revert_edit = true;
}
else
{
render_cursor = render_selection = false;
clear_active_id = true;
}
}
else
{
clear_active_id = revert_edit = true;
render_cursor = render_selection = false;
}
}
else if (is_undo || is_redo)
{
state->OnKeyPressed(is_undo ? STB_TEXTEDIT_K_UNDO : STB_TEXTEDIT_K_REDO);
state->ClearSelection();
}
else if (is_select_all)
{
state->SelectAll();
state->CursorFollow = true;
}
else if (is_cut || is_copy)
{
// Cut, Copy
if (io.SetClipboardTextFn)
{
const int ib = state->HasSelection() ? ImMin(state->Stb.select_start, state->Stb.select_end) : 0;
const int ie = state->HasSelection() ? ImMax(state->Stb.select_start, state->Stb.select_end) : state->CurLenW;
const int clipboard_data_len = ImTextCountUtf8BytesFromStr(state->TextW.Data + ib, state->TextW.Data + ie) + 1;
char* clipboard_data = (char*)IM_ALLOC(clipboard_data_len * sizeof(char));
ImTextStrToUtf8(clipboard_data, clipboard_data_len, state->TextW.Data + ib, state->TextW.Data + ie);
SetClipboardText(clipboard_data);
MemFree(clipboard_data);
}
if (is_cut)
{
if (!state->HasSelection())
state->SelectAll();
state->CursorFollow = true;
stb_textedit_cut(state, &state->Stb);
}
}
else if (is_paste)
{
if (const char* clipboard = GetClipboardText())
{
// Filter pasted buffer
const int clipboard_len = (int)strlen(clipboard);
ImWchar* clipboard_filtered = (ImWchar*)IM_ALLOC((clipboard_len + 1) * sizeof(ImWchar));
int clipboard_filtered_len = 0;
for (const char* s = clipboard; *s != 0; )
{
unsigned int c;
s += ImTextCharFromUtf8(&c, s, NULL);
if (!InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Clipboard))
continue;
clipboard_filtered[clipboard_filtered_len++] = (ImWchar)c;
}
clipboard_filtered[clipboard_filtered_len] = 0;
if (clipboard_filtered_len > 0) // If everything was filtered, ignore the pasting operation
{
stb_textedit_paste(state, &state->Stb, clipboard_filtered, clipboard_filtered_len);
state->CursorFollow = true;
}
MemFree(clipboard_filtered);
}
}
// Update render selection flag after events have been handled, so selection highlight can be displayed during the same frame.
render_selection |= state->HasSelection() && (RENDER_SELECTION_WHEN_INACTIVE || render_cursor);
}
// Process callbacks and apply result back to user's buffer.
const char* apply_new_text = NULL;
int apply_new_text_length = 0;
if (g.ActiveId == id)
{
IM_ASSERT(state != NULL);
if (revert_edit && !is_readonly)
{
if (flags & ImGuiInputTextFlags_EscapeClearsAll)
{
// Clear input
apply_new_text = "";
apply_new_text_length = 0;
STB_TEXTEDIT_CHARTYPE empty_string;
stb_textedit_replace(state, &state->Stb, &empty_string, 0);
}
else if (strcmp(buf, state->InitialTextA.Data) != 0)
{
// Restore initial value. Only return true if restoring to the initial value changes the current buffer contents.
// Push records into the undo stack so we can CTRL+Z the revert operation itself
apply_new_text = state->InitialTextA.Data;
apply_new_text_length = state->InitialTextA.Size - 1;
ImVector<ImWchar> w_text;
if (apply_new_text_length > 0)
{
w_text.resize(ImTextCountCharsFromUtf8(apply_new_text, apply_new_text + apply_new_text_length) + 1);
ImTextStrFromUtf8(w_text.Data, w_text.Size, apply_new_text, apply_new_text + apply_new_text_length);
}
stb_textedit_replace(state, &state->Stb, w_text.Data, (apply_new_text_length > 0) ? (w_text.Size - 1) : 0);
}
}
// Apply ASCII value
if (!is_readonly)
{
state->TextAIsValid = true;
state->TextA.resize(state->TextW.Size * 4 + 1);
ImTextStrToUtf8(state->TextA.Data, state->TextA.Size, state->TextW.Data, NULL);
}
// When using 'ImGuiInputTextFlags_EnterReturnsTrue' as a special case we reapply the live buffer back to the input buffer before clearing ActiveId, even though strictly speaking it wasn't modified on this frame.
// If we didn't do that, code like InputInt() with ImGuiInputTextFlags_EnterReturnsTrue would fail.
// This also allows the user to use InputText() with ImGuiInputTextFlags_EnterReturnsTrue without maintaining any user-side storage (please note that if you use this property along ImGuiInputTextFlags_CallbackResize you can end up with your temporary string object unnecessarily allocating once a frame, either store your string data, either if you don't then don't use ImGuiInputTextFlags_CallbackResize).
const bool apply_edit_back_to_user_buffer = !revert_edit || (validated && (flags & ImGuiInputTextFlags_EnterReturnsTrue) != 0);
if (apply_edit_back_to_user_buffer)
{
// Apply new value immediately - copy modified buffer back
// Note that as soon as the input box is active, the in-widget value gets priority over any underlying modification of the input buffer
// FIXME: We actually always render 'buf' when calling DrawList->AddText, making the comment above incorrect.
// FIXME-OPT: CPU waste to do this every time the widget is active, should mark dirty state from the stb_textedit callbacks.
// User callback
if ((flags & (ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_CallbackHistory | ImGuiInputTextFlags_CallbackEdit | ImGuiInputTextFlags_CallbackAlways)) != 0)
{
IM_ASSERT(callback != NULL);
// The reason we specify the usage semantic (Completion/History) is that Completion needs to disable keyboard TABBING at the moment.
ImGuiInputTextFlags event_flag = 0;
ImGuiKey event_key = ImGuiKey_None;
if ((flags & ImGuiInputTextFlags_CallbackCompletion) != 0 && Shortcut(ImGuiKey_Tab, id))
{
event_flag = ImGuiInputTextFlags_CallbackCompletion;
event_key = ImGuiKey_Tab;
}
else if ((flags & ImGuiInputTextFlags_CallbackHistory) != 0 && IsKeyPressed(ImGuiKey_UpArrow))
{
event_flag = ImGuiInputTextFlags_CallbackHistory;
event_key = ImGuiKey_UpArrow;
}
else if ((flags & ImGuiInputTextFlags_CallbackHistory) != 0 && IsKeyPressed(ImGuiKey_DownArrow))
{
event_flag = ImGuiInputTextFlags_CallbackHistory;
event_key = ImGuiKey_DownArrow;
}
else if ((flags & ImGuiInputTextFlags_CallbackEdit) && state->Edited)
{
event_flag = ImGuiInputTextFlags_CallbackEdit;
}
else if (flags & ImGuiInputTextFlags_CallbackAlways)
{
event_flag = ImGuiInputTextFlags_CallbackAlways;
}
if (event_flag)
{
ImGuiInputTextCallbackData callback_data;
callback_data.Ctx = &g;
callback_data.EventFlag = event_flag;
callback_data.Flags = flags;
callback_data.UserData = callback_user_data;
char* callback_buf = is_readonly ? buf : state->TextA.Data;
callback_data.EventKey = event_key;
callback_data.Buf = callback_buf;
callback_data.BufTextLen = state->CurLenA;
callback_data.BufSize = state->BufCapacityA;
callback_data.BufDirty = false;
// We have to convert from wchar-positions to UTF-8-positions, which can be pretty slow (an incentive to ditch the ImWchar buffer, see https://github.com/nothings/stb/issues/188)
ImWchar* text = state->TextW.Data;
const int utf8_cursor_pos = callback_data.CursorPos = ImTextCountUtf8BytesFromStr(text, text + state->Stb.cursor);
const int utf8_selection_start = callback_data.SelectionStart = ImTextCountUtf8BytesFromStr(text, text + state->Stb.select_start);
const int utf8_selection_end = callback_data.SelectionEnd = ImTextCountUtf8BytesFromStr(text, text + state->Stb.select_end);
// Call user code
callback(&callback_data);
// Read back what user may have modified
callback_buf = is_readonly ? buf : state->TextA.Data; // Pointer may have been invalidated by a resize callback
IM_ASSERT(callback_data.Buf == callback_buf); // Invalid to modify those fields
IM_ASSERT(callback_data.BufSize == state->BufCapacityA);
IM_ASSERT(callback_data.Flags == flags);
const bool buf_dirty = callback_data.BufDirty;
if (callback_data.CursorPos != utf8_cursor_pos || buf_dirty) { state->Stb.cursor = ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.CursorPos); state->CursorFollow = true; }
if (callback_data.SelectionStart != utf8_selection_start || buf_dirty) { state->Stb.select_start = (callback_data.SelectionStart == callback_data.CursorPos) ? state->Stb.cursor : ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.SelectionStart); }
if (callback_data.SelectionEnd != utf8_selection_end || buf_dirty) { state->Stb.select_end = (callback_data.SelectionEnd == callback_data.SelectionStart) ? state->Stb.select_start : ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.SelectionEnd); }
if (buf_dirty)
{
IM_ASSERT((flags & ImGuiInputTextFlags_ReadOnly) == 0);
IM_ASSERT(callback_data.BufTextLen == (int)strlen(callback_data.Buf)); // You need to maintain BufTextLen if you change the text!
InputTextReconcileUndoStateAfterUserCallback(state, callback_data.Buf, callback_data.BufTextLen); // FIXME: Move the rest of this block inside function and rename to InputTextReconcileStateAfterUserCallback() ?
if (callback_data.BufTextLen > backup_current_text_length && is_resizable)
state->TextW.resize(state->TextW.Size + (callback_data.BufTextLen - backup_current_text_length)); // Worse case scenario resize
state->CurLenW = ImTextStrFromUtf8(state->TextW.Data, state->TextW.Size, callback_data.Buf, NULL);
state->CurLenA = callback_data.BufTextLen; // Assume correct length and valid UTF-8 from user, saves us an extra strlen()
state->CursorAnimReset();
}
}
}
// Will copy result string if modified
if (!is_readonly && strcmp(state->TextA.Data, buf) != 0)
{
apply_new_text = state->TextA.Data;
apply_new_text_length = state->CurLenA;
}
}
}
// Copy result to user buffer. This can currently only happen when (g.ActiveId == id)
if (apply_new_text != NULL)
{
// We cannot test for 'backup_current_text_length != apply_new_text_length' here because we have no guarantee that the size
// of our owned buffer matches the size of the string object held by the user, and by design we allow InputText() to be used
// without any storage on user's side.
IM_ASSERT(apply_new_text_length >= 0);
if (is_resizable)
{
ImGuiInputTextCallbackData callback_data;
callback_data.Ctx = &g;
callback_data.EventFlag = ImGuiInputTextFlags_CallbackResize;
callback_data.Flags = flags;
callback_data.Buf = buf;
callback_data.BufTextLen = apply_new_text_length;
callback_data.BufSize = ImMax(buf_size, apply_new_text_length + 1);
callback_data.UserData = callback_user_data;
callback(&callback_data);
buf = callback_data.Buf;
buf_size = callback_data.BufSize;
apply_new_text_length = ImMin(callback_data.BufTextLen, buf_size - 1);
IM_ASSERT(apply_new_text_length <= buf_size);
}
//IMGUI_DEBUG_PRINT("InputText(\"%s\"): apply_new_text length %d\n", label, apply_new_text_length);
// If the underlying buffer resize was denied or not carried to the next frame, apply_new_text_length+1 may be >= buf_size.
ImStrncpy(buf, apply_new_text, ImMin(apply_new_text_length + 1, buf_size));
value_changed = true;
}
// Release active ID at the end of the function (so e.g. pressing Return still does a final application of the value)
if (clear_active_id && g.ActiveId == id)
ClearActiveID();
// Render frame
if (!is_multiline)
{
RenderNavHighlight(frame_bb, id);
RenderFrame(frame_bb.Min, frame_bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
}
const ImVec4 clip_rect(frame_bb.Min.x, frame_bb.Min.y, frame_bb.Min.x + inner_size.x, frame_bb.Min.y + inner_size.y); // Not using frame_bb.Max because we have adjusted size
ImVec2 draw_pos = is_multiline ? draw_window->DC.CursorPos : frame_bb.Min + style.FramePadding;
ImVec2 text_size(0.0f, 0.0f);
// Set upper limit of single-line InputTextEx() at 2 million characters strings. The current pathological worst case is a long line
// without any carriage return, which would makes ImFont::RenderText() reserve too many vertices and probably crash. Avoid it altogether.
// Note that we only use this limit on single-line InputText(), so a pathologically large line on a InputTextMultiline() would still crash.
const int buf_display_max_length = 2 * 1024 * 1024;
const char* buf_display = buf_display_from_state ? state->TextA.Data : buf; //-V595
const char* buf_display_end = NULL; // We have specialized paths below for setting the length
if (is_displaying_hint)
{
buf_display = hint;
buf_display_end = hint + strlen(hint);
}
// Render text. We currently only render selection when the widget is active or while scrolling.
// FIXME: We could remove the '&& render_cursor' to keep rendering selection when inactive.
if (render_cursor || render_selection)
{
IM_ASSERT(state != NULL);
if (!is_displaying_hint)
buf_display_end = buf_display + state->CurLenA;
// Render text (with cursor and selection)
// This is going to be messy. We need to:
// - Display the text (this alone can be more easily clipped)
// - Handle scrolling, highlight selection, display cursor (those all requires some form of 1d->2d cursor position calculation)
// - Measure text height (for scrollbar)
// We are attempting to do most of that in **one main pass** to minimize the computation cost (non-negligible for large amount of text) + 2nd pass for selection rendering (we could merge them by an extra refactoring effort)
// FIXME: This should occur on buf_display but we'd need to maintain cursor/select_start/select_end for UTF-8.
const ImWchar* text_begin = state->TextW.Data;
ImVec2 cursor_offset, select_start_offset;
{
// Find lines numbers straddling 'cursor' (slot 0) and 'select_start' (slot 1) positions.
const ImWchar* searches_input_ptr[2] = { NULL, NULL };
int searches_result_line_no[2] = { -1000, -1000 };
int searches_remaining = 0;
if (render_cursor)
{
searches_input_ptr[0] = text_begin + state->Stb.cursor;
searches_result_line_no[0] = -1;
searches_remaining++;
}
if (render_selection)
{
searches_input_ptr[1] = text_begin + ImMin(state->Stb.select_start, state->Stb.select_end);
searches_result_line_no[1] = -1;
searches_remaining++;
}
// Iterate all lines to find our line numbers
// In multi-line mode, we never exit the loop until all lines are counted, so add one extra to the searches_remaining counter.
searches_remaining += is_multiline ? 1 : 0;
int line_count = 0;
//for (const ImWchar* s = text_begin; (s = (const ImWchar*)wcschr((const wchar_t*)s, (wchar_t)'\n')) != NULL; s++) // FIXME-OPT: Could use this when wchar_t are 16-bit
for (const ImWchar* s = text_begin; *s != 0; s++)
if (*s == '\n')
{
line_count++;
if (searches_result_line_no[0] == -1 && s >= searches_input_ptr[0]) { searches_result_line_no[0] = line_count; if (--searches_remaining <= 0) break; }
if (searches_result_line_no[1] == -1 && s >= searches_input_ptr[1]) { searches_result_line_no[1] = line_count; if (--searches_remaining <= 0) break; }
}
line_count++;
if (searches_result_line_no[0] == -1)
searches_result_line_no[0] = line_count;
if (searches_result_line_no[1] == -1)
searches_result_line_no[1] = line_count;
// Calculate 2d position by finding the beginning of the line and measuring distance
cursor_offset.x = InputTextCalcTextSizeW(&g, ImStrbolW(searches_input_ptr[0], text_begin), searches_input_ptr[0]).x;
cursor_offset.y = searches_result_line_no[0] * g.FontSize;
if (searches_result_line_no[1] >= 0)
{
select_start_offset.x = InputTextCalcTextSizeW(&g, ImStrbolW(searches_input_ptr[1], text_begin), searches_input_ptr[1]).x;
select_start_offset.y = searches_result_line_no[1] * g.FontSize;
}
// Store text height (note that we haven't calculated text width at all, see GitHub issues #383, #1224)
if (is_multiline)
text_size = ImVec2(inner_size.x, line_count * g.FontSize);
}
// Scroll
if (render_cursor && state->CursorFollow)
{
// Horizontal scroll in chunks of quarter width
if (!(flags & ImGuiInputTextFlags_NoHorizontalScroll))
{
const float scroll_increment_x = inner_size.x * 0.25f;
const float visible_width = inner_size.x - style.FramePadding.x;
if (cursor_offset.x < state->ScrollX)
state->ScrollX = IM_FLOOR(ImMax(0.0f, cursor_offset.x - scroll_increment_x));
else if (cursor_offset.x - visible_width >= state->ScrollX)
state->ScrollX = IM_FLOOR(cursor_offset.x - visible_width + scroll_increment_x);
}
else
{
state->ScrollX = 0.0f;
}
// Vertical scroll
if (is_multiline)
{
// Test if cursor is vertically visible
if (cursor_offset.y - g.FontSize < scroll_y)
scroll_y = ImMax(0.0f, cursor_offset.y - g.FontSize);
else if (cursor_offset.y - (inner_size.y - style.FramePadding.y * 2.0f) >= scroll_y)
scroll_y = cursor_offset.y - inner_size.y + style.FramePadding.y * 2.0f;
const float scroll_max_y = ImMax((text_size.y + style.FramePadding.y * 2.0f) - inner_size.y, 0.0f);
scroll_y = ImClamp(scroll_y, 0.0f, scroll_max_y);
draw_pos.y += (draw_window->Scroll.y - scroll_y); // Manipulate cursor pos immediately avoid a frame of lag
draw_window->Scroll.y = scroll_y;
}
state->CursorFollow = false;
}
// Draw selection
const ImVec2 draw_scroll = ImVec2(state->ScrollX, 0.0f);
if (render_selection)
{
const ImWchar* text_selected_begin = text_begin + ImMin(state->Stb.select_start, state->Stb.select_end);
const ImWchar* text_selected_end = text_begin + ImMax(state->Stb.select_start, state->Stb.select_end);
ImU32 bg_color = GetColorU32(ImGuiCol_TextSelectedBg, render_cursor ? 1.0f : 0.6f); // FIXME: current code flow mandate that render_cursor is always true here, we are leaving the transparent one for tests.
float bg_offy_up = is_multiline ? 0.0f : -1.0f; // FIXME: those offsets should be part of the style? they don't play so well with multi-line selection.
float bg_offy_dn = is_multiline ? 0.0f : 2.0f;
ImVec2 rect_pos = draw_pos + select_start_offset - draw_scroll;
for (const ImWchar* p = text_selected_begin; p < text_selected_end; )
{
if (rect_pos.y > clip_rect.w + g.FontSize)
break;
if (rect_pos.y < clip_rect.y)
{
//p = (const ImWchar*)wmemchr((const wchar_t*)p, '\n', text_selected_end - p); // FIXME-OPT: Could use this when wchar_t are 16-bit
//p = p ? p + 1 : text_selected_end;
while (p < text_selected_end)
if (*p++ == '\n')
break;
}
else
{
ImVec2 rect_size = InputTextCalcTextSizeW(&g, p, text_selected_end, &p, NULL, true);
if (rect_size.x <= 0.0f) rect_size.x = IM_FLOOR(g.Font->GetCharAdvance((ImWchar)' ') * 0.50f); // So we can see selected empty lines
ImRect rect(rect_pos + ImVec2(0.0f, bg_offy_up - g.FontSize), rect_pos + ImVec2(rect_size.x, bg_offy_dn));
rect.ClipWith(clip_rect);
if (rect.Overlaps(clip_rect))
draw_window->DrawList->AddRectFilled(rect.Min, rect.Max, bg_color);
}
rect_pos.x = draw_pos.x - draw_scroll.x;
rect_pos.y += g.FontSize;
}
}
// We test for 'buf_display_max_length' as a way to avoid some pathological cases (e.g. single-line 1 MB string) which would make ImDrawList crash.
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
{
ImU32 col = GetColorU32(is_displaying_hint ? ImGuiCol_TextDisabled : ImGuiCol_Text);
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos - draw_scroll, col, buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
}
// Draw blinking cursor
if (render_cursor)
{
state->CursorAnim += io.DeltaTime;
bool cursor_is_visible = (!g.IO.ConfigInputTextCursorBlink) || (state->CursorAnim <= 0.0f) || ImFmod(state->CursorAnim, 1.20f) <= 0.80f;
ImVec2 cursor_screen_pos = ImFloor(draw_pos + cursor_offset - draw_scroll);
ImRect cursor_screen_rect(cursor_screen_pos.x, cursor_screen_pos.y - g.FontSize + 0.5f, cursor_screen_pos.x + 1.0f, cursor_screen_pos.y - 1.5f);
if (cursor_is_visible && cursor_screen_rect.Overlaps(clip_rect))
draw_window->DrawList->AddLine(cursor_screen_rect.Min, cursor_screen_rect.GetBL(), GetColorU32(ImGuiCol_Text));
// Notify OS of text input position for advanced IME (-1 x offset so that Windows IME can cover our cursor. Bit of an extra nicety.)
if (!is_readonly)
{
g.PlatformImeData.WantVisible = true;
g.PlatformImeData.InputPos = ImVec2(cursor_screen_pos.x - 1.0f, cursor_screen_pos.y - g.FontSize);
g.PlatformImeData.InputLineHeight = g.FontSize;
}
}
}
else
{
// Render text only (no selection, no cursor)
if (is_multiline)
text_size = ImVec2(inner_size.x, InputTextCalcTextLenAndLineCount(buf_display, &buf_display_end) * g.FontSize); // We don't need width
else if (!is_displaying_hint && g.ActiveId == id)
buf_display_end = buf_display + state->CurLenA;
else if (!is_displaying_hint)
buf_display_end = buf_display + strlen(buf_display);
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
{
ImU32 col = GetColorU32(is_displaying_hint ? ImGuiCol_TextDisabled : ImGuiCol_Text);
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos, col, buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
}
}
if (is_password && !is_displaying_hint)
PopFont();
if (is_multiline)
{
// For focus requests to work on our multiline we need to ensure our child ItemAdd() call specifies the ImGuiItemFlags_Inputable (ref issue #4761)...
Dummy(ImVec2(text_size.x, text_size.y + style.FramePadding.y));
ImGuiItemFlags backup_item_flags = g.CurrentItemFlags;
g.CurrentItemFlags |= ImGuiItemFlags_Inputable | ImGuiItemFlags_NoTabStop;
EndChild();
item_data_backup.StatusFlags |= (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredWindow);
g.CurrentItemFlags = backup_item_flags;
// ...and then we need to undo the group overriding last item data, which gets a bit messy as EndGroup() tries to forward scrollbar being active...
// FIXME: This quite messy/tricky, should attempt to get rid of the child window.
EndGroup();
if (g.LastItemData.ID == 0)
{
g.LastItemData.ID = id;
g.LastItemData.InFlags = item_data_backup.InFlags;
g.LastItemData.StatusFlags = item_data_backup.StatusFlags;
}
}
// Log as text
if (g.LogEnabled && (!is_password || is_displaying_hint))
{
LogSetNextTextDecoration("{", "}");
LogRenderedText(&draw_pos, buf_display, buf_display_end);
}
if (label_size.x > 0)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
if (value_changed && !(flags & ImGuiInputTextFlags_NoMarkEdited))
MarkItemEdited(id);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Inputable);
if ((flags & ImGuiInputTextFlags_EnterReturnsTrue) != 0)
return validated;
else
return value_changed;
}
void ImGui::DebugNodeInputTextState(ImGuiInputTextState* state)
{
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
ImGuiContext& g = *GImGui;
ImStb::STB_TexteditState* stb_state = &state->Stb;
ImStb::StbUndoState* undo_state = &stb_state->undostate;
Text("ID: 0x%08X, ActiveID: 0x%08X", state->ID, g.ActiveId);
DebugLocateItemOnHover(state->ID);
Text("CurLenW: %d, CurLenA: %d, Cursor: %d, Selection: %d..%d", state->CurLenW, state->CurLenA, stb_state->cursor, stb_state->select_start, stb_state->select_end);
Text("has_preferred_x: %d (%.2f)", stb_state->has_preferred_x, stb_state->preferred_x);
Text("undo_point: %d, redo_point: %d, undo_char_point: %d, redo_char_point: %d", undo_state->undo_point, undo_state->redo_point, undo_state->undo_char_point, undo_state->redo_char_point);
if (BeginChild("undopoints", ImVec2(0.0f, GetTextLineHeight() * 15), true)) // Visualize undo state
{
PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
for (int n = 0; n < STB_TEXTEDIT_UNDOSTATECOUNT; n++)
{
ImStb::StbUndoRecord* undo_rec = &undo_state->undo_rec[n];
const char undo_rec_type = (n < undo_state->undo_point) ? 'u' : (n >= undo_state->redo_point) ? 'r' : ' ';
if (undo_rec_type == ' ')
BeginDisabled();
char buf[64] = "";
if (undo_rec_type != ' ' && undo_rec->char_storage != -1)
ImTextStrToUtf8(buf, IM_ARRAYSIZE(buf), undo_state->undo_char + undo_rec->char_storage, undo_state->undo_char + undo_rec->char_storage + undo_rec->insert_length);
Text("%c [%02d] where %03d, insert %03d, delete %03d, char_storage %03d \"%s\"",
undo_rec_type, n, undo_rec->where, undo_rec->insert_length, undo_rec->delete_length, undo_rec->char_storage, buf);
if (undo_rec_type == ' ')
EndDisabled();
}
PopStyleVar();
}
EndChild();
#else
IM_UNUSED(state);
#endif
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: ColorEdit, ColorPicker, ColorButton, etc.
//-------------------------------------------------------------------------
// - ColorEdit3()
// - ColorEdit4()
// - ColorPicker3()
// - RenderColorRectWithAlphaCheckerboard() [Internal]
// - ColorPicker4()
// - ColorButton()
// - SetColorEditOptions()
// - ColorTooltip() [Internal]
// - ColorEditOptionsPopup() [Internal]
// - ColorPickerOptionsPopup() [Internal]
//-------------------------------------------------------------------------
bool ImGui::ColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags)
{
return ColorEdit4(label, col, flags | ImGuiColorEditFlags_NoAlpha);
}
static void ColorEditRestoreH(const float* col, float* H)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.ColorEditCurrentID != 0);
if (g.ColorEditSavedID != g.ColorEditCurrentID || g.ColorEditSavedColor != ImGui::ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 0)))
return;
*H = g.ColorEditSavedHue;
}
// ColorEdit supports RGB and HSV inputs. In case of RGB input resulting color may have undefined hue and/or saturation.
// Since widget displays both RGB and HSV values we must preserve hue and saturation to prevent these values resetting.
static void ColorEditRestoreHS(const float* col, float* H, float* S, float* V)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.ColorEditCurrentID != 0);
if (g.ColorEditSavedID != g.ColorEditCurrentID || g.ColorEditSavedColor != ImGui::ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 0)))
return;
// When S == 0, H is undefined.
// When H == 1 it wraps around to 0.
if (*S == 0.0f || (*H == 0.0f && g.ColorEditSavedHue == 1))
*H = g.ColorEditSavedHue;
// When V == 0, S is undefined.
if (*V == 0.0f)
*S = g.ColorEditSavedSat;
}
// Edit colors components (each component in 0.0f..1.0f range).
// See enum ImGuiColorEditFlags_ for available options. e.g. Only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
// With typical options: Left-click on color square to open color picker. Right-click to open option menu. CTRL-Click over input fields to edit them and TAB to go to next item.
bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const float square_sz = GetFrameHeight();
const float w_full = CalcItemWidth();
const float w_button = (flags & ImGuiColorEditFlags_NoSmallPreview) ? 0.0f : (square_sz + style.ItemInnerSpacing.x);
const float w_inputs = w_full - w_button;
const char* label_display_end = FindRenderedTextEnd(label);
g.NextItemData.ClearFlags();
BeginGroup();
PushID(label);
const bool set_current_color_edit_id = (g.ColorEditCurrentID == 0);
if (set_current_color_edit_id)
g.ColorEditCurrentID = window->IDStack.back();
// If we're not showing any slider there's no point in doing any HSV conversions
const ImGuiColorEditFlags flags_untouched = flags;
if (flags & ImGuiColorEditFlags_NoInputs)
flags = (flags & (~ImGuiColorEditFlags_DisplayMask_)) | ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_NoOptions;
// Context menu: display and modify options (before defaults are applied)
if (!(flags & ImGuiColorEditFlags_NoOptions))
ColorEditOptionsPopup(col, flags);
// Read stored options
if (!(flags & ImGuiColorEditFlags_DisplayMask_))
flags |= (g.ColorEditOptions & ImGuiColorEditFlags_DisplayMask_);
if (!(flags & ImGuiColorEditFlags_DataTypeMask_))
flags |= (g.ColorEditOptions & ImGuiColorEditFlags_DataTypeMask_);
if (!(flags & ImGuiColorEditFlags_PickerMask_))
flags |= (g.ColorEditOptions & ImGuiColorEditFlags_PickerMask_);
if (!(flags & ImGuiColorEditFlags_InputMask_))
flags |= (g.ColorEditOptions & ImGuiColorEditFlags_InputMask_);
flags |= (g.ColorEditOptions & ~(ImGuiColorEditFlags_DisplayMask_ | ImGuiColorEditFlags_DataTypeMask_ | ImGuiColorEditFlags_PickerMask_ | ImGuiColorEditFlags_InputMask_));
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_DisplayMask_)); // Check that only 1 is selected
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_InputMask_)); // Check that only 1 is selected
const bool alpha = (flags & ImGuiColorEditFlags_NoAlpha) == 0;
const bool hdr = (flags & ImGuiColorEditFlags_HDR) != 0;
const int components = alpha ? 4 : 3;
// Convert to the formats we need
float f[4] = { col[0], col[1], col[2], alpha ? col[3] : 1.0f };
if ((flags & ImGuiColorEditFlags_InputHSV) && (flags & ImGuiColorEditFlags_DisplayRGB))
ColorConvertHSVtoRGB(f[0], f[1], f[2], f[0], f[1], f[2]);
else if ((flags & ImGuiColorEditFlags_InputRGB) && (flags & ImGuiColorEditFlags_DisplayHSV))
{
// Hue is lost when converting from grayscale rgb (saturation=0). Restore it.
ColorConvertRGBtoHSV(f[0], f[1], f[2], f[0], f[1], f[2]);
ColorEditRestoreHS(col, &f[0], &f[1], &f[2]);
}
int i[4] = { IM_F32_TO_INT8_UNBOUND(f[0]), IM_F32_TO_INT8_UNBOUND(f[1]), IM_F32_TO_INT8_UNBOUND(f[2]), IM_F32_TO_INT8_UNBOUND(f[3]) };
bool value_changed = false;
bool value_changed_as_float = false;
const ImVec2 pos = window->DC.CursorPos;
const float inputs_offset_x = (style.ColorButtonPosition == ImGuiDir_Left) ? w_button : 0.0f;
window->DC.CursorPos.x = pos.x + inputs_offset_x;
if ((flags & (ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_DisplayHSV)) != 0 && (flags & ImGuiColorEditFlags_NoInputs) == 0)
{
// RGB/HSV 0..255 Sliders
const float w_item_one = ImMax(1.0f, IM_FLOOR((w_inputs - (style.ItemInnerSpacing.x) * (components - 1)) / (float)components));
const float w_item_last = ImMax(1.0f, IM_FLOOR(w_inputs - (w_item_one + style.ItemInnerSpacing.x) * (components - 1)));
const bool hide_prefix = (w_item_one <= CalcTextSize((flags & ImGuiColorEditFlags_Float) ? "M:0.000" : "M:000").x);
static const char* ids[4] = { "##X", "##Y", "##Z", "##W" };
static const char* fmt_table_int[3][4] =
{
{ "%3d", "%3d", "%3d", "%3d" }, // Short display
{ "R:%3d", "G:%3d", "B:%3d", "A:%3d" }, // Long display for RGBA
{ "H:%3d", "S:%3d", "V:%3d", "A:%3d" } // Long display for HSVA
};
static const char* fmt_table_float[3][4] =
{
{ "%0.3f", "%0.3f", "%0.3f", "%0.3f" }, // Short display
{ "R:%0.3f", "G:%0.3f", "B:%0.3f", "A:%0.3f" }, // Long display for RGBA
{ "H:%0.3f", "S:%0.3f", "V:%0.3f", "A:%0.3f" } // Long display for HSVA
};
const int fmt_idx = hide_prefix ? 0 : (flags & ImGuiColorEditFlags_DisplayHSV) ? 2 : 1;
for (int n = 0; n < components; n++)
{
if (n > 0)
SameLine(0, style.ItemInnerSpacing.x);
SetNextItemWidth((n + 1 < components) ? w_item_one : w_item_last);
// FIXME: When ImGuiColorEditFlags_HDR flag is passed HS values snap in weird ways when SV values go below 0.
if (flags & ImGuiColorEditFlags_Float)
{
value_changed |= DragFloat(ids[n], &f[n], 1.0f / 255.0f, 0.0f, hdr ? 0.0f : 1.0f, fmt_table_float[fmt_idx][n]);
value_changed_as_float |= value_changed;
}
else
{
value_changed |= DragInt(ids[n], &i[n], 1.0f, 0, hdr ? 0 : 255, fmt_table_int[fmt_idx][n]);
}
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
}
}
else if ((flags & ImGuiColorEditFlags_DisplayHex) != 0 && (flags & ImGuiColorEditFlags_NoInputs) == 0)
{
// RGB Hexadecimal Input
char buf[64];
if (alpha)
ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", ImClamp(i[0], 0, 255), ImClamp(i[1], 0, 255), ImClamp(i[2], 0, 255), ImClamp(i[3], 0, 255));
else
ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", ImClamp(i[0], 0, 255), ImClamp(i[1], 0, 255), ImClamp(i[2], 0, 255));
SetNextItemWidth(w_inputs);
if (InputText("##Text", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase))
{
value_changed = true;
char* p = buf;
while (*p == '#' || ImCharIsBlankA(*p))
p++;
i[0] = i[1] = i[2] = 0;
i[3] = 0xFF; // alpha default to 255 is not parsed by scanf (e.g. inputting #FFFFFF omitting alpha)
int r;
if (alpha)
r = sscanf(p, "%02X%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2], (unsigned int*)&i[3]); // Treat at unsigned (%X is unsigned)
else
r = sscanf(p, "%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2]);
IM_UNUSED(r); // Fixes C6031: Return value ignored: 'sscanf'.
}
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
}
ImGuiWindow* picker_active_window = NULL;
if (!(flags & ImGuiColorEditFlags_NoSmallPreview))
{
const float button_offset_x = ((flags & ImGuiColorEditFlags_NoInputs) || (style.ColorButtonPosition == ImGuiDir_Left)) ? 0.0f : w_inputs + style.ItemInnerSpacing.x;
window->DC.CursorPos = ImVec2(pos.x + button_offset_x, pos.y);
const ImVec4 col_v4(col[0], col[1], col[2], alpha ? col[3] : 1.0f);
if (ColorButton("##ColorButton", col_v4, flags))
{
if (!(flags & ImGuiColorEditFlags_NoPicker))
{
// Store current color and open a picker
g.ColorPickerRef = col_v4;
OpenPopup("picker");
SetNextWindowPos(g.LastItemData.Rect.GetBL() + ImVec2(0.0f, style.ItemSpacing.y));
}
}
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
if (BeginPopup("picker"))
{
if (g.CurrentWindow->BeginCount == 1)
{
picker_active_window = g.CurrentWindow;
if (label != label_display_end)
{
TextEx(label, label_display_end);
Spacing();
}
ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags_DataTypeMask_ | ImGuiColorEditFlags_PickerMask_ | ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaBar;
ImGuiColorEditFlags picker_flags = (flags_untouched & picker_flags_to_forward) | ImGuiColorEditFlags_DisplayMask_ | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_AlphaPreviewHalf;
SetNextItemWidth(square_sz * 12.0f); // Use 256 + bar sizes?
value_changed |= ColorPicker4("##picker", col, picker_flags, &g.ColorPickerRef.x);
}
EndPopup();
}
}
if (label != label_display_end && !(flags & ImGuiColorEditFlags_NoLabel))
{
// Position not necessarily next to last submitted button (e.g. if style.ColorButtonPosition == ImGuiDir_Left),
// but we need to use SameLine() to setup baseline correctly. Might want to refactor SameLine() to simplify this.
SameLine(0.0f, style.ItemInnerSpacing.x);
window->DC.CursorPos.x = pos.x + ((flags & ImGuiColorEditFlags_NoInputs) ? w_button : w_full + style.ItemInnerSpacing.x);
TextEx(label, label_display_end);
}
// Convert back
if (value_changed && picker_active_window == NULL)
{
if (!value_changed_as_float)
for (int n = 0; n < 4; n++)
f[n] = i[n] / 255.0f;
if ((flags & ImGuiColorEditFlags_DisplayHSV) && (flags & ImGuiColorEditFlags_InputRGB))
{
g.ColorEditSavedHue = f[0];
g.ColorEditSavedSat = f[1];
ColorConvertHSVtoRGB(f[0], f[1], f[2], f[0], f[1], f[2]);
g.ColorEditSavedID = g.ColorEditCurrentID;
g.ColorEditSavedColor = ColorConvertFloat4ToU32(ImVec4(f[0], f[1], f[2], 0));
}
if ((flags & ImGuiColorEditFlags_DisplayRGB) && (flags & ImGuiColorEditFlags_InputHSV))
ColorConvertRGBtoHSV(f[0], f[1], f[2], f[0], f[1], f[2]);
col[0] = f[0];
col[1] = f[1];
col[2] = f[2];
if (alpha)
col[3] = f[3];
}
if (set_current_color_edit_id)
g.ColorEditCurrentID = 0;
PopID();
EndGroup();
// Drag and Drop Target
// NB: The flag test is merely an optional micro-optimization, BeginDragDropTarget() does the same test.
if ((g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredRect) && !(flags & ImGuiColorEditFlags_NoDragDrop) && BeginDragDropTarget())
{
bool accepted_drag_drop = false;
if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
{
memcpy((float*)col, payload->Data, sizeof(float) * 3); // Preserve alpha if any //-V512 //-V1086
value_changed = accepted_drag_drop = true;
}
if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
{
memcpy((float*)col, payload->Data, sizeof(float) * components);
value_changed = accepted_drag_drop = true;
}
// Drag-drop payloads are always RGB
if (accepted_drag_drop && (flags & ImGuiColorEditFlags_InputHSV))
ColorConvertRGBtoHSV(col[0], col[1], col[2], col[0], col[1], col[2]);
EndDragDropTarget();
}
// When picker is being actively used, use its active id so IsItemActive() will function on ColorEdit4().
if (picker_active_window && g.ActiveId != 0 && g.ActiveIdWindow == picker_active_window)
g.LastItemData.ID = g.ActiveId;
if (value_changed && g.LastItemData.ID != 0) // In case of ID collision, the second EndGroup() won't catch g.ActiveId
MarkItemEdited(g.LastItemData.ID);
return value_changed;
}
bool ImGui::ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags)
{
float col4[4] = { col[0], col[1], col[2], 1.0f };
if (!ColorPicker4(label, col4, flags | ImGuiColorEditFlags_NoAlpha))
return false;
col[0] = col4[0]; col[1] = col4[1]; col[2] = col4[2];
return true;
}
// Helper for ColorPicker4()
static void RenderArrowsForVerticalBar(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, float bar_w, float alpha)
{
ImU32 alpha8 = IM_F32_TO_INT8_SAT(alpha);
ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + half_sz.x + 1, pos.y), ImVec2(half_sz.x + 2, half_sz.y + 1), ImGuiDir_Right, IM_COL32(0,0,0,alpha8));
ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + half_sz.x, pos.y), half_sz, ImGuiDir_Right, IM_COL32(255,255,255,alpha8));
ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + bar_w - half_sz.x - 1, pos.y), ImVec2(half_sz.x + 2, half_sz.y + 1), ImGuiDir_Left, IM_COL32(0,0,0,alpha8));
ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + bar_w - half_sz.x, pos.y), half_sz, ImGuiDir_Left, IM_COL32(255,255,255,alpha8));
}
// Note: ColorPicker4() only accesses 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
// (In C++ the 'float col[4]' notation for a function argument is equivalent to 'float* col', we only specify a size to facilitate understanding of the code.)
// FIXME: we adjust the big color square height based on item width, which may cause a flickering feedback loop (if automatic height makes a vertical scrollbar appears, affecting automatic width..)
// FIXME: this is trying to be aware of style.Alpha but not fully correct. Also, the color wheel will have overlapping glitches with (style.Alpha < 1.0)
bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags, const float* ref_col)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImDrawList* draw_list = window->DrawList;
ImGuiStyle& style = g.Style;
ImGuiIO& io = g.IO;
const float width = CalcItemWidth();
g.NextItemData.ClearFlags();
PushID(label);
const bool set_current_color_edit_id = (g.ColorEditCurrentID == 0);
if (set_current_color_edit_id)
g.ColorEditCurrentID = window->IDStack.back();
BeginGroup();
if (!(flags & ImGuiColorEditFlags_NoSidePreview))
flags |= ImGuiColorEditFlags_NoSmallPreview;
// Context menu: display and store options.
if (!(flags & ImGuiColorEditFlags_NoOptions))
ColorPickerOptionsPopup(col, flags);
// Read stored options
if (!(flags & ImGuiColorEditFlags_PickerMask_))
flags |= ((g.ColorEditOptions & ImGuiColorEditFlags_PickerMask_) ? g.ColorEditOptions : ImGuiColorEditFlags_DefaultOptions_) & ImGuiColorEditFlags_PickerMask_;
if (!(flags & ImGuiColorEditFlags_InputMask_))
flags |= ((g.ColorEditOptions & ImGuiColorEditFlags_InputMask_) ? g.ColorEditOptions : ImGuiColorEditFlags_DefaultOptions_) & ImGuiColorEditFlags_InputMask_;
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_PickerMask_)); // Check that only 1 is selected
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_InputMask_)); // Check that only 1 is selected
if (!(flags & ImGuiColorEditFlags_NoOptions))
flags |= (g.ColorEditOptions & ImGuiColorEditFlags_AlphaBar);
// Setup
int components = (flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4;
bool alpha_bar = (flags & ImGuiColorEditFlags_AlphaBar) && !(flags & ImGuiColorEditFlags_NoAlpha);
ImVec2 picker_pos = window->DC.CursorPos;
float square_sz = GetFrameHeight();
float bars_width = square_sz; // Arbitrary smallish width of Hue/Alpha picking bars
float sv_picker_size = ImMax(bars_width * 1, width - (alpha_bar ? 2 : 1) * (bars_width + style.ItemInnerSpacing.x)); // Saturation/Value picking box
float bar0_pos_x = picker_pos.x + sv_picker_size + style.ItemInnerSpacing.x;
float bar1_pos_x = bar0_pos_x + bars_width + style.ItemInnerSpacing.x;
float bars_triangles_half_sz = IM_FLOOR(bars_width * 0.20f);
float backup_initial_col[4];
memcpy(backup_initial_col, col, components * sizeof(float));
float wheel_thickness = sv_picker_size * 0.08f;
float wheel_r_outer = sv_picker_size * 0.50f;
float wheel_r_inner = wheel_r_outer - wheel_thickness;
ImVec2 wheel_center(picker_pos.x + (sv_picker_size + bars_width)*0.5f, picker_pos.y + sv_picker_size * 0.5f);
// Note: the triangle is displayed rotated with triangle_pa pointing to Hue, but most coordinates stays unrotated for logic.
float triangle_r = wheel_r_inner - (int)(sv_picker_size * 0.027f);
ImVec2 triangle_pa = ImVec2(triangle_r, 0.0f); // Hue point.
ImVec2 triangle_pb = ImVec2(triangle_r * -0.5f, triangle_r * -0.866025f); // Black point.
ImVec2 triangle_pc = ImVec2(triangle_r * -0.5f, triangle_r * +0.866025f); // White point.
float H = col[0], S = col[1], V = col[2];
float R = col[0], G = col[1], B = col[2];
if (flags & ImGuiColorEditFlags_InputRGB)
{
// Hue is lost when converting from grayscale rgb (saturation=0). Restore it.
ColorConvertRGBtoHSV(R, G, B, H, S, V);
ColorEditRestoreHS(col, &H, &S, &V);
}
else if (flags & ImGuiColorEditFlags_InputHSV)
{
ColorConvertHSVtoRGB(H, S, V, R, G, B);
}
bool value_changed = false, value_changed_h = false, value_changed_sv = false;
PushItemFlag(ImGuiItemFlags_NoNav, true);
if (flags & ImGuiColorEditFlags_PickerHueWheel)
{
// Hue wheel + SV triangle logic
InvisibleButton("hsv", ImVec2(sv_picker_size + style.ItemInnerSpacing.x + bars_width, sv_picker_size));
if (IsItemActive())
{
ImVec2 initial_off = g.IO.MouseClickedPos[0] - wheel_center;
ImVec2 current_off = g.IO.MousePos - wheel_center;
float initial_dist2 = ImLengthSqr(initial_off);
if (initial_dist2 >= (wheel_r_inner - 1) * (wheel_r_inner - 1) && initial_dist2 <= (wheel_r_outer + 1) * (wheel_r_outer + 1))
{
// Interactive with Hue wheel
H = ImAtan2(current_off.y, current_off.x) / IM_PI * 0.5f;
if (H < 0.0f)
H += 1.0f;
value_changed = value_changed_h = true;
}
float cos_hue_angle = ImCos(-H * 2.0f * IM_PI);
float sin_hue_angle = ImSin(-H * 2.0f * IM_PI);
if (ImTriangleContainsPoint(triangle_pa, triangle_pb, triangle_pc, ImRotate(initial_off, cos_hue_angle, sin_hue_angle)))
{
// Interacting with SV triangle
ImVec2 current_off_unrotated = ImRotate(current_off, cos_hue_angle, sin_hue_angle);
if (!ImTriangleContainsPoint(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated))
current_off_unrotated = ImTriangleClosestPoint(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated);
float uu, vv, ww;
ImTriangleBarycentricCoords(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated, uu, vv, ww);
V = ImClamp(1.0f - vv, 0.0001f, 1.0f);
S = ImClamp(uu / V, 0.0001f, 1.0f);
value_changed = value_changed_sv = true;
}
}
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
}
else if (flags & ImGuiColorEditFlags_PickerHueBar)
{
// SV rectangle logic
InvisibleButton("sv", ImVec2(sv_picker_size, sv_picker_size));
if (IsItemActive())
{
S = ImSaturate((io.MousePos.x - picker_pos.x) / (sv_picker_size - 1));
V = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size - 1));
ColorEditRestoreH(col, &H); // Greatly reduces hue jitter and reset to 0 when hue == 255 and color is rapidly modified using SV square.
value_changed = value_changed_sv = true;
}
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
// Hue bar logic
SetCursorScreenPos(ImVec2(bar0_pos_x, picker_pos.y));
InvisibleButton("hue", ImVec2(bars_width, sv_picker_size));
if (IsItemActive())
{
H = ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size - 1));
value_changed = value_changed_h = true;
}
}
// Alpha bar logic
if (alpha_bar)
{
SetCursorScreenPos(ImVec2(bar1_pos_x, picker_pos.y));
InvisibleButton("alpha", ImVec2(bars_width, sv_picker_size));
if (IsItemActive())
{
col[3] = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size - 1));
value_changed = true;
}
}
PopItemFlag(); // ImGuiItemFlags_NoNav
if (!(flags & ImGuiColorEditFlags_NoSidePreview))
{
SameLine(0, style.ItemInnerSpacing.x);
BeginGroup();
}
if (!(flags & ImGuiColorEditFlags_NoLabel))
{
const char* label_display_end = FindRenderedTextEnd(label);
if (label != label_display_end)
{
if ((flags & ImGuiColorEditFlags_NoSidePreview))
SameLine(0, style.ItemInnerSpacing.x);
TextEx(label, label_display_end);
}
}
if (!(flags & ImGuiColorEditFlags_NoSidePreview))
{
PushItemFlag(ImGuiItemFlags_NoNavDefaultFocus, true);
ImVec4 col_v4(col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
if ((flags & ImGuiColorEditFlags_NoLabel))
Text("Current");
ImGuiColorEditFlags sub_flags_to_forward = ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf | ImGuiColorEditFlags_NoTooltip;
ColorButton("##current", col_v4, (flags & sub_flags_to_forward), ImVec2(square_sz * 3, square_sz * 2));
if (ref_col != NULL)
{
Text("Original");
ImVec4 ref_col_v4(ref_col[0], ref_col[1], ref_col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : ref_col[3]);
if (ColorButton("##original", ref_col_v4, (flags & sub_flags_to_forward), ImVec2(square_sz * 3, square_sz * 2)))
{
memcpy(col, ref_col, components * sizeof(float));
value_changed = true;
}
}
PopItemFlag();
EndGroup();
}
// Convert back color to RGB
if (value_changed_h || value_changed_sv)
{
if (flags & ImGuiColorEditFlags_InputRGB)
{
ColorConvertHSVtoRGB(H, S, V, col[0], col[1], col[2]);
g.ColorEditSavedHue = H;
g.ColorEditSavedSat = S;
g.ColorEditSavedID = g.ColorEditCurrentID;
g.ColorEditSavedColor = ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 0));
}
else if (flags & ImGuiColorEditFlags_InputHSV)
{
col[0] = H;
col[1] = S;
col[2] = V;
}
}
// R,G,B and H,S,V slider color editor
bool value_changed_fix_hue_wrap = false;
if ((flags & ImGuiColorEditFlags_NoInputs) == 0)
{
PushItemWidth((alpha_bar ? bar1_pos_x : bar0_pos_x) + bars_width - picker_pos.x);
ImGuiColorEditFlags sub_flags_to_forward = ImGuiColorEditFlags_DataTypeMask_ | ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoOptions | ImGuiColorEditFlags_NoSmallPreview | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf;
ImGuiColorEditFlags sub_flags = (flags & sub_flags_to_forward) | ImGuiColorEditFlags_NoPicker;
if (flags & ImGuiColorEditFlags_DisplayRGB || (flags & ImGuiColorEditFlags_DisplayMask_) == 0)
if (ColorEdit4("##rgb", col, sub_flags | ImGuiColorEditFlags_DisplayRGB))
{
// FIXME: Hackily differentiating using the DragInt (ActiveId != 0 && !ActiveIdAllowOverlap) vs. using the InputText or DropTarget.
// For the later we don't want to run the hue-wrap canceling code. If you are well versed in HSV picker please provide your input! (See #2050)
value_changed_fix_hue_wrap = (g.ActiveId != 0 && !g.ActiveIdAllowOverlap);
value_changed = true;
}
if (flags & ImGuiColorEditFlags_DisplayHSV || (flags & ImGuiColorEditFlags_DisplayMask_) == 0)
value_changed |= ColorEdit4("##hsv", col, sub_flags | ImGuiColorEditFlags_DisplayHSV);
if (flags & ImGuiColorEditFlags_DisplayHex || (flags & ImGuiColorEditFlags_DisplayMask_) == 0)
value_changed |= ColorEdit4("##hex", col, sub_flags | ImGuiColorEditFlags_DisplayHex);
PopItemWidth();
}
// Try to cancel hue wrap (after ColorEdit4 call), if any
if (value_changed_fix_hue_wrap && (flags & ImGuiColorEditFlags_InputRGB))
{
float new_H, new_S, new_V;
ColorConvertRGBtoHSV(col[0], col[1], col[2], new_H, new_S, new_V);
if (new_H <= 0 && H > 0)
{
if (new_V <= 0 && V != new_V)
ColorConvertHSVtoRGB(H, S, new_V <= 0 ? V * 0.5f : new_V, col[0], col[1], col[2]);
else if (new_S <= 0)
ColorConvertHSVtoRGB(H, new_S <= 0 ? S * 0.5f : new_S, new_V, col[0], col[1], col[2]);
}
}
if (value_changed)
{
if (flags & ImGuiColorEditFlags_InputRGB)
{
R = col[0];
G = col[1];
B = col[2];
ColorConvertRGBtoHSV(R, G, B, H, S, V);
ColorEditRestoreHS(col, &H, &S, &V); // Fix local Hue as display below will use it immediately.
}
else if (flags & ImGuiColorEditFlags_InputHSV)
{
H = col[0];
S = col[1];
V = col[2];
ColorConvertHSVtoRGB(H, S, V, R, G, B);
}
}
const int style_alpha8 = IM_F32_TO_INT8_SAT(style.Alpha);
const ImU32 col_black = IM_COL32(0,0,0,style_alpha8);
const ImU32 col_white = IM_COL32(255,255,255,style_alpha8);
const ImU32 col_midgrey = IM_COL32(128,128,128,style_alpha8);
const ImU32 col_hues[6 + 1] = { IM_COL32(255,0,0,style_alpha8), IM_COL32(255,255,0,style_alpha8), IM_COL32(0,255,0,style_alpha8), IM_COL32(0,255,255,style_alpha8), IM_COL32(0,0,255,style_alpha8), IM_COL32(255,0,255,style_alpha8), IM_COL32(255,0,0,style_alpha8) };
ImVec4 hue_color_f(1, 1, 1, style.Alpha); ColorConvertHSVtoRGB(H, 1, 1, hue_color_f.x, hue_color_f.y, hue_color_f.z);
ImU32 hue_color32 = ColorConvertFloat4ToU32(hue_color_f);
ImU32 user_col32_striped_of_alpha = ColorConvertFloat4ToU32(ImVec4(R, G, B, style.Alpha)); // Important: this is still including the main rendering/style alpha!!
ImVec2 sv_cursor_pos;
if (flags & ImGuiColorEditFlags_PickerHueWheel)
{
// Render Hue Wheel
const float aeps = 0.5f / wheel_r_outer; // Half a pixel arc length in radians (2pi cancels out).
const int segment_per_arc = ImMax(4, (int)wheel_r_outer / 12);
for (int n = 0; n < 6; n++)
{
const float a0 = (n) /6.0f * 2.0f * IM_PI - aeps;
const float a1 = (n+1.0f)/6.0f * 2.0f * IM_PI + aeps;
const int vert_start_idx = draw_list->VtxBuffer.Size;
draw_list->PathArcTo(wheel_center, (wheel_r_inner + wheel_r_outer)*0.5f, a0, a1, segment_per_arc);
draw_list->PathStroke(col_white, 0, wheel_thickness);
const int vert_end_idx = draw_list->VtxBuffer.Size;
// Paint colors over existing vertices
ImVec2 gradient_p0(wheel_center.x + ImCos(a0) * wheel_r_inner, wheel_center.y + ImSin(a0) * wheel_r_inner);
ImVec2 gradient_p1(wheel_center.x + ImCos(a1) * wheel_r_inner, wheel_center.y + ImSin(a1) * wheel_r_inner);
ShadeVertsLinearColorGradientKeepAlpha(draw_list, vert_start_idx, vert_end_idx, gradient_p0, gradient_p1, col_hues[n], col_hues[n + 1]);
}
// Render Cursor + preview on Hue Wheel
float cos_hue_angle = ImCos(H * 2.0f * IM_PI);
float sin_hue_angle = ImSin(H * 2.0f * IM_PI);
ImVec2 hue_cursor_pos(wheel_center.x + cos_hue_angle * (wheel_r_inner + wheel_r_outer) * 0.5f, wheel_center.y + sin_hue_angle * (wheel_r_inner + wheel_r_outer) * 0.5f);
float hue_cursor_rad = value_changed_h ? wheel_thickness * 0.65f : wheel_thickness * 0.55f;
int hue_cursor_segments = ImClamp((int)(hue_cursor_rad / 1.4f), 9, 32);
draw_list->AddCircleFilled(hue_cursor_pos, hue_cursor_rad, hue_color32, hue_cursor_segments);
draw_list->AddCircle(hue_cursor_pos, hue_cursor_rad + 1, col_midgrey, hue_cursor_segments);
draw_list->AddCircle(hue_cursor_pos, hue_cursor_rad, col_white, hue_cursor_segments);
// Render SV triangle (rotated according to hue)
ImVec2 tra = wheel_center + ImRotate(triangle_pa, cos_hue_angle, sin_hue_angle);
ImVec2 trb = wheel_center + ImRotate(triangle_pb, cos_hue_angle, sin_hue_angle);
ImVec2 trc = wheel_center + ImRotate(triangle_pc, cos_hue_angle, sin_hue_angle);
ImVec2 uv_white = GetFontTexUvWhitePixel();
draw_list->PrimReserve(6, 6);
draw_list->PrimVtx(tra, uv_white, hue_color32);
draw_list->PrimVtx(trb, uv_white, hue_color32);
draw_list->PrimVtx(trc, uv_white, col_white);
draw_list->PrimVtx(tra, uv_white, 0);
draw_list->PrimVtx(trb, uv_white, col_black);
draw_list->PrimVtx(trc, uv_white, 0);
draw_list->AddTriangle(tra, trb, trc, col_midgrey, 1.5f);
sv_cursor_pos = ImLerp(ImLerp(trc, tra, ImSaturate(S)), trb, ImSaturate(1 - V));
}
else if (flags & ImGuiColorEditFlags_PickerHueBar)
{
// Render SV Square
draw_list->AddRectFilledMultiColor(picker_pos, picker_pos + ImVec2(sv_picker_size, sv_picker_size), col_white, hue_color32, hue_color32, col_white);
draw_list->AddRectFilledMultiColor(picker_pos, picker_pos + ImVec2(sv_picker_size, sv_picker_size), 0, 0, col_black, col_black);
RenderFrameBorder(picker_pos, picker_pos + ImVec2(sv_picker_size, sv_picker_size), 0.0f);
sv_cursor_pos.x = ImClamp(IM_ROUND(picker_pos.x + ImSaturate(S) * sv_picker_size), picker_pos.x + 2, picker_pos.x + sv_picker_size - 2); // Sneakily prevent the circle to stick out too much
sv_cursor_pos.y = ImClamp(IM_ROUND(picker_pos.y + ImSaturate(1 - V) * sv_picker_size), picker_pos.y + 2, picker_pos.y + sv_picker_size - 2);
// Render Hue Bar
for (int i = 0; i < 6; ++i)
draw_list->AddRectFilledMultiColor(ImVec2(bar0_pos_x, picker_pos.y + i * (sv_picker_size / 6)), ImVec2(bar0_pos_x + bars_width, picker_pos.y + (i + 1) * (sv_picker_size / 6)), col_hues[i], col_hues[i], col_hues[i + 1], col_hues[i + 1]);
float bar0_line_y = IM_ROUND(picker_pos.y + H * sv_picker_size);
RenderFrameBorder(ImVec2(bar0_pos_x, picker_pos.y), ImVec2(bar0_pos_x + bars_width, picker_pos.y + sv_picker_size), 0.0f);
RenderArrowsForVerticalBar(draw_list, ImVec2(bar0_pos_x - 1, bar0_line_y), ImVec2(bars_triangles_half_sz + 1, bars_triangles_half_sz), bars_width + 2.0f, style.Alpha);
}
// Render cursor/preview circle (clamp S/V within 0..1 range because floating points colors may lead HSV values to be out of range)
float sv_cursor_rad = value_changed_sv ? 10.0f : 6.0f;
draw_list->AddCircleFilled(sv_cursor_pos, sv_cursor_rad, user_col32_striped_of_alpha, 12);
draw_list->AddCircle(sv_cursor_pos, sv_cursor_rad + 1, col_midgrey, 12);
draw_list->AddCircle(sv_cursor_pos, sv_cursor_rad, col_white, 12);
// Render alpha bar
if (alpha_bar)
{
float alpha = ImSaturate(col[3]);
ImRect bar1_bb(bar1_pos_x, picker_pos.y, bar1_pos_x + bars_width, picker_pos.y + sv_picker_size);
RenderColorRectWithAlphaCheckerboard(draw_list, bar1_bb.Min, bar1_bb.Max, 0, bar1_bb.GetWidth() / 2.0f, ImVec2(0.0f, 0.0f));
draw_list->AddRectFilledMultiColor(bar1_bb.Min, bar1_bb.Max, user_col32_striped_of_alpha, user_col32_striped_of_alpha, user_col32_striped_of_alpha & ~IM_COL32_A_MASK, user_col32_striped_of_alpha & ~IM_COL32_A_MASK);
float bar1_line_y = IM_ROUND(picker_pos.y + (1.0f - alpha) * sv_picker_size);
RenderFrameBorder(bar1_bb.Min, bar1_bb.Max, 0.0f);
RenderArrowsForVerticalBar(draw_list, ImVec2(bar1_pos_x - 1, bar1_line_y), ImVec2(bars_triangles_half_sz + 1, bars_triangles_half_sz), bars_width + 2.0f, style.Alpha);
}
EndGroup();
if (value_changed && memcmp(backup_initial_col, col, components * sizeof(float)) == 0)
value_changed = false;
if (value_changed && g.LastItemData.ID != 0) // In case of ID collision, the second EndGroup() won't catch g.ActiveId
MarkItemEdited(g.LastItemData.ID);
if (set_current_color_edit_id)
g.ColorEditCurrentID = 0;
PopID();
return value_changed;
}
// A little color square. Return true when clicked.
// FIXME: May want to display/ignore the alpha component in the color display? Yet show it in the tooltip.
// 'desc_id' is not called 'label' because we don't display it next to the button, but only in the tooltip.
// Note that 'col' may be encoded in HSV if ImGuiColorEditFlags_InputHSV is set.
bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags, const ImVec2& size_arg)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiID id = window->GetID(desc_id);
const float default_size = GetFrameHeight();
const ImVec2 size(size_arg.x == 0.0f ? default_size : size_arg.x, size_arg.y == 0.0f ? default_size : size_arg.y);
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
ItemSize(bb, (size.y >= default_size) ? g.Style.FramePadding.y : 0.0f);
if (!ItemAdd(bb, id))
return false;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held);
if (flags & ImGuiColorEditFlags_NoAlpha)
flags &= ~(ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf);
ImVec4 col_rgb = col;
if (flags & ImGuiColorEditFlags_InputHSV)
ColorConvertHSVtoRGB(col_rgb.x, col_rgb.y, col_rgb.z, col_rgb.x, col_rgb.y, col_rgb.z);
ImVec4 col_rgb_without_alpha(col_rgb.x, col_rgb.y, col_rgb.z, 1.0f);
float grid_step = ImMin(size.x, size.y) / 2.99f;
float rounding = ImMin(g.Style.FrameRounding, grid_step * 0.5f);
ImRect bb_inner = bb;
float off = 0.0f;
if ((flags & ImGuiColorEditFlags_NoBorder) == 0)
{
off = -0.75f; // The border (using Col_FrameBg) tends to look off when color is near-opaque and rounding is enabled. This offset seemed like a good middle ground to reduce those artifacts.
bb_inner.Expand(off);
}
if ((flags & ImGuiColorEditFlags_AlphaPreviewHalf) && col_rgb.w < 1.0f)
{
float mid_x = IM_ROUND((bb_inner.Min.x + bb_inner.Max.x) * 0.5f);
RenderColorRectWithAlphaCheckerboard(window->DrawList, ImVec2(bb_inner.Min.x + grid_step, bb_inner.Min.y), bb_inner.Max, GetColorU32(col_rgb), grid_step, ImVec2(-grid_step + off, off), rounding, ImDrawFlags_RoundCornersRight);
window->DrawList->AddRectFilled(bb_inner.Min, ImVec2(mid_x, bb_inner.Max.y), GetColorU32(col_rgb_without_alpha), rounding, ImDrawFlags_RoundCornersLeft);
}
else
{
// Because GetColorU32() multiplies by the global style Alpha and we don't want to display a checkerboard if the source code had no alpha
ImVec4 col_source = (flags & ImGuiColorEditFlags_AlphaPreview) ? col_rgb : col_rgb_without_alpha;
if (col_source.w < 1.0f)
RenderColorRectWithAlphaCheckerboard(window->DrawList, bb_inner.Min, bb_inner.Max, GetColorU32(col_source), grid_step, ImVec2(off, off), rounding);
else
window->DrawList->AddRectFilled(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), rounding);
}
RenderNavHighlight(bb, id);
if ((flags & ImGuiColorEditFlags_NoBorder) == 0)
{
if (g.Style.FrameBorderSize > 0.0f)
RenderFrameBorder(bb.Min, bb.Max, rounding);
else
window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), rounding); // Color button are often in need of some sort of border
}
// Drag and Drop Source
// NB: The ActiveId test is merely an optional micro-optimization, BeginDragDropSource() does the same test.
if (g.ActiveId == id && !(flags & ImGuiColorEditFlags_NoDragDrop) && BeginDragDropSource())
{
if (flags & ImGuiColorEditFlags_NoAlpha)
SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F, &col_rgb, sizeof(float) * 3, ImGuiCond_Once);
else
SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, &col_rgb, sizeof(float) * 4, ImGuiCond_Once);
ColorButton(desc_id, col, flags);
SameLine();
TextEx("Color");
EndDragDropSource();
}
// Tooltip
if (!(flags & ImGuiColorEditFlags_NoTooltip) && hovered)
ColorTooltip(desc_id, &col.x, flags & (ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf));
return pressed;
}
// Initialize/override default color options
void ImGui::SetColorEditOptions(ImGuiColorEditFlags flags)
{
ImGuiContext& g = *GImGui;
if ((flags & ImGuiColorEditFlags_DisplayMask_) == 0)
flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_DisplayMask_;
if ((flags & ImGuiColorEditFlags_DataTypeMask_) == 0)
flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_DataTypeMask_;
if ((flags & ImGuiColorEditFlags_PickerMask_) == 0)
flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_PickerMask_;
if ((flags & ImGuiColorEditFlags_InputMask_) == 0)
flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_InputMask_;
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_DisplayMask_)); // Check only 1 option is selected
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_DataTypeMask_)); // Check only 1 option is selected
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_PickerMask_)); // Check only 1 option is selected
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_InputMask_)); // Check only 1 option is selected
g.ColorEditOptions = flags;
}
// Note: only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
void ImGui::ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags)
{
ImGuiContext& g = *GImGui;
if (!BeginTooltipEx(ImGuiTooltipFlags_OverridePreviousTooltip, ImGuiWindowFlags_None))
return;
const char* text_end = text ? FindRenderedTextEnd(text, NULL) : text;
if (text_end > text)
{
TextEx(text, text_end);
Separator();
}
ImVec2 sz(g.FontSize * 3 + g.Style.FramePadding.y * 2, g.FontSize * 3 + g.Style.FramePadding.y * 2);
ImVec4 cf(col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
int cr = IM_F32_TO_INT8_SAT(col[0]), cg = IM_F32_TO_INT8_SAT(col[1]), cb = IM_F32_TO_INT8_SAT(col[2]), ca = (flags & ImGuiColorEditFlags_NoAlpha) ? 255 : IM_F32_TO_INT8_SAT(col[3]);
ColorButton("##preview", cf, (flags & (ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf)) | ImGuiColorEditFlags_NoTooltip, sz);
SameLine();
if ((flags & ImGuiColorEditFlags_InputRGB) || !(flags & ImGuiColorEditFlags_InputMask_))
{
if (flags & ImGuiColorEditFlags_NoAlpha)
Text("#%02X%02X%02X\nR: %d, G: %d, B: %d\n(%.3f, %.3f, %.3f)", cr, cg, cb, cr, cg, cb, col[0], col[1], col[2]);
else
Text("#%02X%02X%02X%02X\nR:%d, G:%d, B:%d, A:%d\n(%.3f, %.3f, %.3f, %.3f)", cr, cg, cb, ca, cr, cg, cb, ca, col[0], col[1], col[2], col[3]);
}
else if (flags & ImGuiColorEditFlags_InputHSV)
{
if (flags & ImGuiColorEditFlags_NoAlpha)
Text("H: %.3f, S: %.3f, V: %.3f", col[0], col[1], col[2]);
else
Text("H: %.3f, S: %.3f, V: %.3f, A: %.3f", col[0], col[1], col[2], col[3]);
}
EndTooltip();
}
void ImGui::ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags)
{
bool allow_opt_inputs = !(flags & ImGuiColorEditFlags_DisplayMask_);
bool allow_opt_datatype = !(flags & ImGuiColorEditFlags_DataTypeMask_);
if ((!allow_opt_inputs && !allow_opt_datatype) || !BeginPopup("context"))
return;
ImGuiContext& g = *GImGui;
ImGuiColorEditFlags opts = g.ColorEditOptions;
if (allow_opt_inputs)
{
if (RadioButton("RGB", (opts & ImGuiColorEditFlags_DisplayRGB) != 0)) opts = (opts & ~ImGuiColorEditFlags_DisplayMask_) | ImGuiColorEditFlags_DisplayRGB;
if (RadioButton("HSV", (opts & ImGuiColorEditFlags_DisplayHSV) != 0)) opts = (opts & ~ImGuiColorEditFlags_DisplayMask_) | ImGuiColorEditFlags_DisplayHSV;
if (RadioButton("Hex", (opts & ImGuiColorEditFlags_DisplayHex) != 0)) opts = (opts & ~ImGuiColorEditFlags_DisplayMask_) | ImGuiColorEditFlags_DisplayHex;
}
if (allow_opt_datatype)
{
if (allow_opt_inputs) Separator();
if (RadioButton("0..255", (opts & ImGuiColorEditFlags_Uint8) != 0)) opts = (opts & ~ImGuiColorEditFlags_DataTypeMask_) | ImGuiColorEditFlags_Uint8;
if (RadioButton("0.00..1.00", (opts & ImGuiColorEditFlags_Float) != 0)) opts = (opts & ~ImGuiColorEditFlags_DataTypeMask_) | ImGuiColorEditFlags_Float;
}
if (allow_opt_inputs || allow_opt_datatype)
Separator();
if (Button("Copy as..", ImVec2(-1, 0)))
OpenPopup("Copy");
if (BeginPopup("Copy"))
{
int cr = IM_F32_TO_INT8_SAT(col[0]), cg = IM_F32_TO_INT8_SAT(col[1]), cb = IM_F32_TO_INT8_SAT(col[2]), ca = (flags & ImGuiColorEditFlags_NoAlpha) ? 255 : IM_F32_TO_INT8_SAT(col[3]);
char buf[64];
ImFormatString(buf, IM_ARRAYSIZE(buf), "(%.3ff, %.3ff, %.3ff, %.3ff)", col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
if (Selectable(buf))
SetClipboardText(buf);
ImFormatString(buf, IM_ARRAYSIZE(buf), "(%d,%d,%d,%d)", cr, cg, cb, ca);
if (Selectable(buf))
SetClipboardText(buf);
ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", cr, cg, cb);
if (Selectable(buf))
SetClipboardText(buf);
if (!(flags & ImGuiColorEditFlags_NoAlpha))
{
ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", cr, cg, cb, ca);
if (Selectable(buf))
SetClipboardText(buf);
}
EndPopup();
}
g.ColorEditOptions = opts;
EndPopup();
}
void ImGui::ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags)
{
bool allow_opt_picker = !(flags & ImGuiColorEditFlags_PickerMask_);
bool allow_opt_alpha_bar = !(flags & ImGuiColorEditFlags_NoAlpha) && !(flags & ImGuiColorEditFlags_AlphaBar);
if ((!allow_opt_picker && !allow_opt_alpha_bar) || !BeginPopup("context"))
return;
ImGuiContext& g = *GImGui;
if (allow_opt_picker)
{
ImVec2 picker_size(g.FontSize * 8, ImMax(g.FontSize * 8 - (GetFrameHeight() + g.Style.ItemInnerSpacing.x), 1.0f)); // FIXME: Picker size copied from main picker function
PushItemWidth(picker_size.x);
for (int picker_type = 0; picker_type < 2; picker_type++)
{
// Draw small/thumbnail version of each picker type (over an invisible button for selection)
if (picker_type > 0) Separator();
PushID(picker_type);
ImGuiColorEditFlags picker_flags = ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoOptions | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_NoSidePreview | (flags & ImGuiColorEditFlags_NoAlpha);
if (picker_type == 0) picker_flags |= ImGuiColorEditFlags_PickerHueBar;
if (picker_type == 1) picker_flags |= ImGuiColorEditFlags_PickerHueWheel;
ImVec2 backup_pos = GetCursorScreenPos();
if (Selectable("##selectable", false, 0, picker_size)) // By default, Selectable() is closing popup
g.ColorEditOptions = (g.ColorEditOptions & ~ImGuiColorEditFlags_PickerMask_) | (picker_flags & ImGuiColorEditFlags_PickerMask_);
SetCursorScreenPos(backup_pos);
ImVec4 previewing_ref_col;
memcpy(&previewing_ref_col, ref_col, sizeof(float) * ((picker_flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4));
ColorPicker4("##previewing_picker", &previewing_ref_col.x, picker_flags);
PopID();
}
PopItemWidth();
}
if (allow_opt_alpha_bar)
{
if (allow_opt_picker) Separator();
CheckboxFlags("Alpha Bar", &g.ColorEditOptions, ImGuiColorEditFlags_AlphaBar);
}
EndPopup();
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: TreeNode, CollapsingHeader, etc.
//-------------------------------------------------------------------------
// - TreeNode()
// - TreeNodeV()
// - TreeNodeEx()
// - TreeNodeExV()
// - TreeNodeBehavior() [Internal]
// - TreePush()
// - TreePop()
// - GetTreeNodeToLabelSpacing()
// - SetNextItemOpen()
// - CollapsingHeader()
//-------------------------------------------------------------------------
bool ImGui::TreeNode(const char* str_id, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
bool is_open = TreeNodeExV(str_id, 0, fmt, args);
va_end(args);
return is_open;
}
bool ImGui::TreeNode(const void* ptr_id, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
bool is_open = TreeNodeExV(ptr_id, 0, fmt, args);
va_end(args);
return is_open;
}
bool ImGui::TreeNode(const char* label)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
return TreeNodeBehavior(window->GetID(label), 0, label, NULL);
}
bool ImGui::TreeNodeV(const char* str_id, const char* fmt, va_list args)
{
return TreeNodeExV(str_id, 0, fmt, args);
}
bool ImGui::TreeNodeV(const void* ptr_id, const char* fmt, va_list args)
{
return TreeNodeExV(ptr_id, 0, fmt, args);
}
bool ImGui::TreeNodeEx(const char* label, ImGuiTreeNodeFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
return TreeNodeBehavior(window->GetID(label), flags, label, NULL);
}
bool ImGui::TreeNodeEx(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
bool is_open = TreeNodeExV(str_id, flags, fmt, args);
va_end(args);
return is_open;
}
bool ImGui::TreeNodeEx(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
bool is_open = TreeNodeExV(ptr_id, flags, fmt, args);
va_end(args);
return is_open;
}
bool ImGui::TreeNodeExV(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const char* label, *label_end;
ImFormatStringToTempBufferV(&label, &label_end, fmt, args);
return TreeNodeBehavior(window->GetID(str_id), flags, label, label_end);
}
bool ImGui::TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const char* label, *label_end;
ImFormatStringToTempBufferV(&label, &label_end, fmt, args);
return TreeNodeBehavior(window->GetID(ptr_id), flags, label, label_end);
}
void ImGui::TreeNodeSetOpen(ImGuiID id, bool open)
{
ImGuiContext& g = *GImGui;
ImGuiStorage* storage = g.CurrentWindow->DC.StateStorage;
storage->SetInt(id, open ? 1 : 0);
}
bool ImGui::TreeNodeUpdateNextOpen(ImGuiID id, ImGuiTreeNodeFlags flags)
{
if (flags & ImGuiTreeNodeFlags_Leaf)
return true;
// We only write to the tree storage if the user clicks (or explicitly use the SetNextItemOpen function)
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiStorage* storage = window->DC.StateStorage;
bool is_open;
if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasOpen)
{
if (g.NextItemData.OpenCond & ImGuiCond_Always)
{
is_open = g.NextItemData.OpenVal;
TreeNodeSetOpen(id, is_open);
}
else
{
// We treat ImGuiCond_Once and ImGuiCond_FirstUseEver the same because tree node state are not saved persistently.
const int stored_value = storage->GetInt(id, -1);
if (stored_value == -1)
{
is_open = g.NextItemData.OpenVal;
TreeNodeSetOpen(id, is_open);
}
else
{
is_open = stored_value != 0;
}
}
}
else
{
is_open = storage->GetInt(id, (flags & ImGuiTreeNodeFlags_DefaultOpen) ? 1 : 0) != 0;
}
// When logging is enabled, we automatically expand tree nodes (but *NOT* collapsing headers.. seems like sensible behavior).
// NB- If we are above max depth we still allow manually opened nodes to be logged.
if (g.LogEnabled && !(flags & ImGuiTreeNodeFlags_NoAutoOpenOnLog) && (window->DC.TreeDepth - g.LogDepthRef) < g.LogDepthToExpand)
is_open = true;
return is_open;
}
bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const bool display_frame = (flags & ImGuiTreeNodeFlags_Framed) != 0;
const ImVec2 padding = (display_frame || (flags & ImGuiTreeNodeFlags_FramePadding)) ? style.FramePadding : ImVec2(style.FramePadding.x, ImMin(window->DC.CurrLineTextBaseOffset, style.FramePadding.y));
if (!label_end)
label_end = FindRenderedTextEnd(label);
const ImVec2 label_size = CalcTextSize(label, label_end, false);
// We vertically grow up to current line height up the typical widget height.
const float frame_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y * 2), label_size.y + padding.y * 2);
ImRect frame_bb;
frame_bb.Min.x = (flags & ImGuiTreeNodeFlags_SpanFullWidth) ? window->WorkRect.Min.x : window->DC.CursorPos.x;
frame_bb.Min.y = window->DC.CursorPos.y;
frame_bb.Max.x = window->WorkRect.Max.x;
frame_bb.Max.y = window->DC.CursorPos.y + frame_height;
if (display_frame)
{
// Framed header expand a little outside the default padding, to the edge of InnerClipRect
// (FIXME: May remove this at some point and make InnerClipRect align with WindowPadding.x instead of WindowPadding.x*0.5f)
frame_bb.Min.x -= IM_FLOOR(window->WindowPadding.x * 0.5f - 1.0f);
frame_bb.Max.x += IM_FLOOR(window->WindowPadding.x * 0.5f);
}
const float text_offset_x = g.FontSize + (display_frame ? padding.x * 3 : padding.x * 2); // Collapser arrow width + Spacing
const float text_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset); // Latch before ItemSize changes it
const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x * 2 : 0.0f); // Include collapser
ImVec2 text_pos(window->DC.CursorPos.x + text_offset_x, window->DC.CursorPos.y + text_offset_y);
ItemSize(ImVec2(text_width, frame_height), padding.y);
// For regular tree nodes, we arbitrary allow to click past 2 worth of ItemSpacing
ImRect interact_bb = frame_bb;
if (!display_frame && (flags & (ImGuiTreeNodeFlags_SpanAvailWidth | ImGuiTreeNodeFlags_SpanFullWidth)) == 0)
interact_bb.Max.x = frame_bb.Min.x + text_width + style.ItemSpacing.x * 2.0f;
// Store a flag for the current depth to tell if we will allow closing this node when navigating one of its child.
// For this purpose we essentially compare if g.NavIdIsAlive went from 0 to 1 between TreeNode() and TreePop().
// This is currently only support 32 level deep and we are fine with (1 << Depth) overflowing into a zero.
const bool is_leaf = (flags & ImGuiTreeNodeFlags_Leaf) != 0;
bool is_open = TreeNodeUpdateNextOpen(id, flags);
if (is_open && !g.NavIdIsAlive && (flags & ImGuiTreeNodeFlags_NavLeftJumpsBackHere) && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
window->DC.TreeJumpToParentOnPopMask |= (1 << window->DC.TreeDepth);
bool item_add = ItemAdd(interact_bb, id);
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HasDisplayRect;
g.LastItemData.DisplayRect = frame_bb;
if (!item_add)
{
if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
TreePushOverrideID(id);
IMGUI_TEST_ENGINE_ITEM_INFO(g.LastItemData.ID, label, g.LastItemData.StatusFlags | (is_leaf ? 0 : ImGuiItemStatusFlags_Openable) | (is_open ? ImGuiItemStatusFlags_Opened : 0));
return is_open;
}
ImGuiButtonFlags button_flags = ImGuiTreeNodeFlags_None;
if (flags & ImGuiTreeNodeFlags_AllowItemOverlap)
button_flags |= ImGuiButtonFlags_AllowItemOverlap;
if (!is_leaf)
button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
// We allow clicking on the arrow section with keyboard modifiers held, in order to easily
// allow browsing a tree while preserving selection with code implementing multi-selection patterns.
// When clicking on the rest of the tree node we always disallow keyboard modifiers.
const float arrow_hit_x1 = (text_pos.x - text_offset_x) - style.TouchExtraPadding.x;
const float arrow_hit_x2 = (text_pos.x - text_offset_x) + (g.FontSize + padding.x * 2.0f) + style.TouchExtraPadding.x;
const bool is_mouse_x_over_arrow = (g.IO.MousePos.x >= arrow_hit_x1 && g.IO.MousePos.x < arrow_hit_x2);
if (window != g.HoveredWindow || !is_mouse_x_over_arrow)
button_flags |= ImGuiButtonFlags_NoKeyModifiers;
// Open behaviors can be altered with the _OpenOnArrow and _OnOnDoubleClick flags.
// Some alteration have subtle effects (e.g. toggle on MouseUp vs MouseDown events) due to requirements for multi-selection and drag and drop support.
// - Single-click on label = Toggle on MouseUp (default, when _OpenOnArrow=0)
// - Single-click on arrow = Toggle on MouseDown (when _OpenOnArrow=0)
// - Single-click on arrow = Toggle on MouseDown (when _OpenOnArrow=1)
// - Double-click on label = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1)
// - Double-click on arrow = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1 and _OpenOnArrow=0)
// It is rather standard that arrow click react on Down rather than Up.
// We set ImGuiButtonFlags_PressedOnClickRelease on OpenOnDoubleClick because we want the item to be active on the initial MouseDown in order for drag and drop to work.
if (is_mouse_x_over_arrow)
button_flags |= ImGuiButtonFlags_PressedOnClick;
else if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick)
button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick;
else
button_flags |= ImGuiButtonFlags_PressedOnClickRelease;
bool selected = (flags & ImGuiTreeNodeFlags_Selected) != 0;
const bool was_selected = selected;
bool hovered, held;
bool pressed = ButtonBehavior(interact_bb, id, &hovered, &held, button_flags);
bool toggled = false;
if (!is_leaf)
{
if (pressed && g.DragDropHoldJustPressedId != id)
{
if ((flags & (ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick)) == 0 || (g.NavActivateId == id))
toggled = true;
if (flags & ImGuiTreeNodeFlags_OpenOnArrow)
toggled |= is_mouse_x_over_arrow && !g.NavDisableMouseHover; // Lightweight equivalent of IsMouseHoveringRect() since ButtonBehavior() already did the job
if ((flags & ImGuiTreeNodeFlags_OpenOnDoubleClick) && g.IO.MouseClickedCount[0] == 2)
toggled = true;
}
else if (pressed && g.DragDropHoldJustPressedId == id)
{
IM_ASSERT(button_flags & ImGuiButtonFlags_PressedOnDragDropHold);
if (!is_open) // When using Drag and Drop "hold to open" we keep the node highlighted after opening, but never close it again.
toggled = true;
}
if (g.NavId == id && g.NavMoveDir == ImGuiDir_Left && is_open)
{
toggled = true;
NavMoveRequestCancel();
}
if (g.NavId == id && g.NavMoveDir == ImGuiDir_Right && !is_open) // If there's something upcoming on the line we may want to give it the priority?
{
toggled = true;
NavMoveRequestCancel();
}
if (toggled)
{
is_open = !is_open;
window->DC.StateStorage->SetInt(id, is_open);
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_ToggledOpen;
}
}
if (flags & ImGuiTreeNodeFlags_AllowItemOverlap)
SetItemAllowOverlap();
// In this branch, TreeNodeBehavior() cannot toggle the selection so this will never trigger.
if (selected != was_selected) //-V547
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_ToggledSelection;
// Render
const ImU32 text_col = GetColorU32(ImGuiCol_Text);
ImGuiNavHighlightFlags nav_highlight_flags = ImGuiNavHighlightFlags_TypeThin;
if (display_frame)
{
// Framed type
const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, true, style.FrameRounding);
RenderNavHighlight(frame_bb, id, nav_highlight_flags);
if (flags & ImGuiTreeNodeFlags_Bullet)
RenderBullet(window->DrawList, ImVec2(text_pos.x - text_offset_x * 0.60f, text_pos.y + g.FontSize * 0.5f), text_col);
else if (!is_leaf)
RenderArrow(window->DrawList, ImVec2(text_pos.x - text_offset_x + padding.x, text_pos.y), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 1.0f);
else // Leaf without bullet, left-adjusted text
text_pos.x -= text_offset_x;
if (flags & ImGuiTreeNodeFlags_ClipLabelForTrailingButton)
frame_bb.Max.x -= g.FontSize + style.FramePadding.x;
if (g.LogEnabled)
LogSetNextTextDecoration("###", "###");
RenderTextClipped(text_pos, frame_bb.Max, label, label_end, &label_size);
}
else
{
// Unframed typed for tree nodes
if (hovered || selected)
{
const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, false);
}
RenderNavHighlight(frame_bb, id, nav_highlight_flags);
if (flags & ImGuiTreeNodeFlags_Bullet)
RenderBullet(window->DrawList, ImVec2(text_pos.x - text_offset_x * 0.5f, text_pos.y + g.FontSize * 0.5f), text_col);
else if (!is_leaf)
RenderArrow(window->DrawList, ImVec2(text_pos.x - text_offset_x + padding.x, text_pos.y + g.FontSize * 0.15f), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 0.70f);
if (g.LogEnabled)
LogSetNextTextDecoration(">", NULL);
RenderText(text_pos, label, label_end, false);
}
if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
TreePushOverrideID(id);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (is_leaf ? 0 : ImGuiItemStatusFlags_Openable) | (is_open ? ImGuiItemStatusFlags_Opened : 0));
return is_open;
}
void ImGui::TreePush(const char* str_id)
{
ImGuiWindow* window = GetCurrentWindow();
Indent();
window->DC.TreeDepth++;
PushID(str_id);
}
void ImGui::TreePush(const void* ptr_id)
{
ImGuiWindow* window = GetCurrentWindow();
Indent();
window->DC.TreeDepth++;
PushID(ptr_id);
}
void ImGui::TreePushOverrideID(ImGuiID id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
Indent();
window->DC.TreeDepth++;
PushOverrideID(id);
}
void ImGui::TreePop()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
Unindent();
window->DC.TreeDepth--;
ImU32 tree_depth_mask = (1 << window->DC.TreeDepth);
// Handle Left arrow to move to parent tree node (when ImGuiTreeNodeFlags_NavLeftJumpsBackHere is enabled)
if (g.NavMoveDir == ImGuiDir_Left && g.NavWindow == window && NavMoveRequestButNoResultYet())
if (g.NavIdIsAlive && (window->DC.TreeJumpToParentOnPopMask & tree_depth_mask))
{
SetNavID(window->IDStack.back(), g.NavLayer, 0, ImRect());
NavMoveRequestCancel();
}
window->DC.TreeJumpToParentOnPopMask &= tree_depth_mask - 1;
IM_ASSERT(window->IDStack.Size > 1); // There should always be 1 element in the IDStack (pushed during window creation). If this triggers you called TreePop/PopID too much.
PopID();
}
// Horizontal distance preceding label when using TreeNode() or Bullet()
float ImGui::GetTreeNodeToLabelSpacing()
{
ImGuiContext& g = *GImGui;
return g.FontSize + (g.Style.FramePadding.x * 2.0f);
}
// Set next TreeNode/CollapsingHeader open state.
void ImGui::SetNextItemOpen(bool is_open, ImGuiCond cond)
{
ImGuiContext& g = *GImGui;
if (g.CurrentWindow->SkipItems)
return;
g.NextItemData.Flags |= ImGuiNextItemDataFlags_HasOpen;
g.NextItemData.OpenVal = is_open;
g.NextItemData.OpenCond = cond ? cond : ImGuiCond_Always;
}
// CollapsingHeader returns true when opened but do not indent nor push into the ID stack (because of the ImGuiTreeNodeFlags_NoTreePushOnOpen flag).
// This is basically the same as calling TreeNodeEx(label, ImGuiTreeNodeFlags_CollapsingHeader). You can remove the _NoTreePushOnOpen flag if you want behavior closer to normal TreeNode().
bool ImGui::CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
return TreeNodeBehavior(window->GetID(label), flags | ImGuiTreeNodeFlags_CollapsingHeader, label);
}
// p_visible == NULL : regular collapsing header
// p_visible != NULL && *p_visible == true : show a small close button on the corner of the header, clicking the button will set *p_visible = false
// p_visible != NULL && *p_visible == false : do not show the header at all
// Do not mistake this with the Open state of the header itself, which you can adjust with SetNextItemOpen() or ImGuiTreeNodeFlags_DefaultOpen.
bool ImGui::CollapsingHeader(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
if (p_visible && !*p_visible)
return false;
ImGuiID id = window->GetID(label);
flags |= ImGuiTreeNodeFlags_CollapsingHeader;
if (p_visible)
flags |= ImGuiTreeNodeFlags_AllowItemOverlap | ImGuiTreeNodeFlags_ClipLabelForTrailingButton;
bool is_open = TreeNodeBehavior(id, flags, label);
if (p_visible != NULL)
{
// Create a small overlapping close button
// FIXME: We can evolve this into user accessible helpers to add extra buttons on title bars, headers, etc.
// FIXME: CloseButton can overlap into text, need find a way to clip the text somehow.
ImGuiContext& g = *GImGui;
ImGuiLastItemData last_item_backup = g.LastItemData;
float button_size = g.FontSize;
float button_x = ImMax(g.LastItemData.Rect.Min.x, g.LastItemData.Rect.Max.x - g.Style.FramePadding.x * 2.0f - button_size);
float button_y = g.LastItemData.Rect.Min.y;
ImGuiID close_button_id = GetIDWithSeed("#CLOSE", NULL, id);
if (CloseButton(close_button_id, ImVec2(button_x, button_y)))
*p_visible = false;
g.LastItemData = last_item_backup;
}
return is_open;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: Selectable
//-------------------------------------------------------------------------
// - Selectable()
//-------------------------------------------------------------------------
// Tip: pass a non-visible label (e.g. "##hello") then you can use the space to draw other text or image.
// But you need to make sure the ID is unique, e.g. enclose calls in PushID/PopID or use ##unique_id.
// With this scheme, ImGuiSelectableFlags_SpanAllColumns and ImGuiSelectableFlags_AllowItemOverlap are also frequently used flags.
// FIXME: Selectable() with (size.x == 0.0f) and (SelectableTextAlign.x > 0.0f) followed by SameLine() is currently not supported.
bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags flags, const ImVec2& size_arg)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
// Submit label or explicit size to ItemSize(), whereas ItemAdd() will submit a larger/spanning rectangle.
ImGuiID id = window->GetID(label);
ImVec2 label_size = CalcTextSize(label, NULL, true);
ImVec2 size(size_arg.x != 0.0f ? size_arg.x : label_size.x, size_arg.y != 0.0f ? size_arg.y : label_size.y);
ImVec2 pos = window->DC.CursorPos;
pos.y += window->DC.CurrLineTextBaseOffset;
ItemSize(size, 0.0f);
// Fill horizontal space
// We don't support (size < 0.0f) in Selectable() because the ItemSpacing extension would make explicitly right-aligned sizes not visibly match other widgets.
const bool span_all_columns = (flags & ImGuiSelectableFlags_SpanAllColumns) != 0;
const float min_x = span_all_columns ? window->ParentWorkRect.Min.x : pos.x;
const float max_x = span_all_columns ? window->ParentWorkRect.Max.x : window->WorkRect.Max.x;
if (size_arg.x == 0.0f || (flags & ImGuiSelectableFlags_SpanAvailWidth))
size.x = ImMax(label_size.x, max_x - min_x);
// Text stays at the submission position, but bounding box may be extended on both sides
const ImVec2 text_min = pos;
const ImVec2 text_max(min_x + size.x, pos.y + size.y);
// Selectables are meant to be tightly packed together with no click-gap, so we extend their box to cover spacing between selectable.
ImRect bb(min_x, pos.y, text_max.x, text_max.y);
if ((flags & ImGuiSelectableFlags_NoPadWithHalfSpacing) == 0)
{
const float spacing_x = span_all_columns ? 0.0f : style.ItemSpacing.x;
const float spacing_y = style.ItemSpacing.y;
const float spacing_L = IM_FLOOR(spacing_x * 0.50f);
const float spacing_U = IM_FLOOR(spacing_y * 0.50f);
bb.Min.x -= spacing_L;
bb.Min.y -= spacing_U;
bb.Max.x += (spacing_x - spacing_L);
bb.Max.y += (spacing_y - spacing_U);
}
//if (g.IO.KeyCtrl) { GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(0, 255, 0, 255)); }
// Modify ClipRect for the ItemAdd(), faster than doing a PushColumnsBackground/PushTableBackground for every Selectable..
const float backup_clip_rect_min_x = window->ClipRect.Min.x;
const float backup_clip_rect_max_x = window->ClipRect.Max.x;
if (span_all_columns)
{
window->ClipRect.Min.x = window->ParentWorkRect.Min.x;
window->ClipRect.Max.x = window->ParentWorkRect.Max.x;
}
const bool disabled_item = (flags & ImGuiSelectableFlags_Disabled) != 0;
const bool item_add = ItemAdd(bb, id, NULL, disabled_item ? ImGuiItemFlags_Disabled : ImGuiItemFlags_None);
if (span_all_columns)
{
window->ClipRect.Min.x = backup_clip_rect_min_x;
window->ClipRect.Max.x = backup_clip_rect_max_x;
}
if (!item_add)
return false;
const bool disabled_global = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
if (disabled_item && !disabled_global) // Only testing this as an optimization
BeginDisabled();
// FIXME: We can standardize the behavior of those two, we could also keep the fast path of override ClipRect + full push on render only,
// which would be advantageous since most selectable are not selected.
if (span_all_columns && window->DC.CurrentColumns)
PushColumnsBackground();
else if (span_all_columns && g.CurrentTable)
TablePushBackgroundChannel();
// We use NoHoldingActiveID on menus so user can click and _hold_ on a menu then drag to browse child entries
ImGuiButtonFlags button_flags = 0;
if (flags & ImGuiSelectableFlags_NoHoldingActiveID) { button_flags |= ImGuiButtonFlags_NoHoldingActiveId; }
if (flags & ImGuiSelectableFlags_NoSetKeyOwner) { button_flags |= ImGuiButtonFlags_NoSetKeyOwner; }
if (flags & ImGuiSelectableFlags_SelectOnClick) { button_flags |= ImGuiButtonFlags_PressedOnClick; }
if (flags & ImGuiSelectableFlags_SelectOnRelease) { button_flags |= ImGuiButtonFlags_PressedOnRelease; }
if (flags & ImGuiSelectableFlags_AllowDoubleClick) { button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick; }
if (flags & ImGuiSelectableFlags_AllowItemOverlap) { button_flags |= ImGuiButtonFlags_AllowItemOverlap; }
const bool was_selected = selected;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, button_flags);
// Auto-select when moved into
// - This will be more fully fleshed in the range-select branch
// - This is not exposed as it won't nicely work with some user side handling of shift/control
// - We cannot do 'if (g.NavJustMovedToId != id) { selected = false; pressed = was_selected; }' for two reasons
// - (1) it would require focus scope to be set, need exposing PushFocusScope() or equivalent (e.g. BeginSelection() calling PushFocusScope())
// - (2) usage will fail with clipped items
// The multi-select API aim to fix those issues, e.g. may be replaced with a BeginSelection() API.
if ((flags & ImGuiSelectableFlags_SelectOnNav) && g.NavJustMovedToId != 0 && g.NavJustMovedToFocusScopeId == g.CurrentFocusScopeId)
if (g.NavJustMovedToId == id)
selected = pressed = true;
// Update NavId when clicking or when Hovering (this doesn't happen on most widgets), so navigation can be resumed with gamepad/keyboard
if (pressed || (hovered && (flags & ImGuiSelectableFlags_SetNavIdOnHover)))
{
if (!g.NavDisableMouseHover && g.NavWindow == window && g.NavLayer == window->DC.NavLayerCurrent)
{
SetNavID(id, window->DC.NavLayerCurrent, g.CurrentFocusScopeId, WindowRectAbsToRel(window, bb)); // (bb == NavRect)
g.NavDisableHighlight = true;
}
}
if (pressed)
MarkItemEdited(id);
if (flags & ImGuiSelectableFlags_AllowItemOverlap)
SetItemAllowOverlap();
// In this branch, Selectable() cannot toggle the selection so this will never trigger.
if (selected != was_selected) //-V547
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_ToggledSelection;
// Render
if (hovered || selected)
{
const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
RenderFrame(bb.Min, bb.Max, col, false, 0.0f);
}
RenderNavHighlight(bb, id, ImGuiNavHighlightFlags_TypeThin | ImGuiNavHighlightFlags_NoRounding);
if (span_all_columns && window->DC.CurrentColumns)
PopColumnsBackground();
else if (span_all_columns && g.CurrentTable)
TablePopBackgroundChannel();
RenderTextClipped(text_min, text_max, label, NULL, &label_size, style.SelectableTextAlign, &bb);
// Automatically close popups
if (pressed && (window->Flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiSelectableFlags_DontClosePopups) && !(g.LastItemData.InFlags & ImGuiItemFlags_SelectableDontClosePopup))
CloseCurrentPopup();
if (disabled_item && !disabled_global)
EndDisabled();
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
return pressed; //-V1020
}
bool ImGui::Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags, const ImVec2& size_arg)
{
if (Selectable(label, *p_selected, flags, size_arg))
{
*p_selected = !*p_selected;
return true;
}
return false;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: ListBox
//-------------------------------------------------------------------------
// - BeginListBox()
// - EndListBox()
// - ListBox()
//-------------------------------------------------------------------------
// Tip: To have a list filling the entire window width, use size.x = -FLT_MIN and pass an non-visible label e.g. "##empty"
// Tip: If your vertical size is calculated from an item count (e.g. 10 * item_height) consider adding a fractional part to facilitate seeing scrolling boundaries (e.g. 10.25 * item_height).
bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
const ImGuiID id = GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
// Size default to hold ~7.25 items.
// Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar.
ImVec2 size = ImFloor(CalcItemSize(size_arg, CalcItemWidth(), GetTextLineHeightWithSpacing() * 7.25f + style.FramePadding.y * 2.0f));
ImVec2 frame_size = ImVec2(size.x, ImMax(size.y, label_size.y));
ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
g.NextItemData.ClearFlags();
if (!IsRectVisible(bb.Min, bb.Max))
{
ItemSize(bb.GetSize(), style.FramePadding.y);
ItemAdd(bb, 0, &frame_bb);
return false;
}
// FIXME-OPT: We could omit the BeginGroup() if label_size.x but would need to omit the EndGroup() as well.
BeginGroup();
if (label_size.x > 0.0f)
{
ImVec2 label_pos = ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y);
RenderText(label_pos, label);
window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, label_pos + label_size);
}
BeginChildFrame(id, frame_bb.GetSize());
return true;
}
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// OBSOLETED in 1.81 (from February 2021)
bool ImGui::ListBoxHeader(const char* label, int items_count, int height_in_items)
{
// If height_in_items == -1, default height is maximum 7.
ImGuiContext& g = *GImGui;
float height_in_items_f = (height_in_items < 0 ? ImMin(items_count, 7) : height_in_items) + 0.25f;
ImVec2 size;
size.x = 0.0f;
size.y = GetTextLineHeightWithSpacing() * height_in_items_f + g.Style.FramePadding.y * 2.0f;
return BeginListBox(label, size);
}
#endif
void ImGui::EndListBox()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT((window->Flags & ImGuiWindowFlags_ChildWindow) && "Mismatched BeginListBox/EndListBox calls. Did you test the return value of BeginListBox?");
IM_UNUSED(window);
EndChildFrame();
EndGroup(); // This is only required to be able to do IsItemXXX query on the whole ListBox including label
}
bool ImGui::ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_items)
{
const bool value_changed = ListBox(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_items);
return value_changed;
}
// This is merely a helper around BeginListBox(), EndListBox().
// Considering using those directly to submit custom data or store selection differently.
bool ImGui::ListBox(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int height_in_items)
{
ImGuiContext& g = *GImGui;
// Calculate size from "height_in_items"
if (height_in_items < 0)
height_in_items = ImMin(items_count, 7);
float height_in_items_f = height_in_items + 0.25f;
ImVec2 size(0.0f, ImFloor(GetTextLineHeightWithSpacing() * height_in_items_f + g.Style.FramePadding.y * 2.0f));
if (!BeginListBox(label, size))
return false;
// Assume all items have even height (= 1 line of text). If you need items of different height,
// you can create a custom version of ListBox() in your code without using the clipper.
bool value_changed = false;
ImGuiListClipper clipper;
clipper.Begin(items_count, GetTextLineHeightWithSpacing()); // We know exactly our line height here so we pass it as a minor optimization, but generally you don't need to.
while (clipper.Step())
for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
{
const char* item_text;
if (!items_getter(data, i, &item_text))
item_text = "*Unknown item*";
PushID(i);
const bool item_selected = (i == *current_item);
if (Selectable(item_text, item_selected))
{
*current_item = i;
value_changed = true;
}
if (item_selected)
SetItemDefaultFocus();
PopID();
}
EndListBox();
if (value_changed)
MarkItemEdited(g.LastItemData.ID);
return value_changed;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: PlotLines, PlotHistogram
//-------------------------------------------------------------------------
// - PlotEx() [Internal]
// - PlotLines()
// - PlotHistogram()
//-------------------------------------------------------------------------
// Plot/Graph widgets are not very good.
// Consider writing your own, or using a third-party one, see:
// - ImPlot https://github.com/epezent/implot
// - others https://github.com/ocornut/imgui/wiki/Useful-Extensions
//-------------------------------------------------------------------------
int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, const ImVec2& size_arg)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return -1;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImVec2 frame_size = CalcItemSize(size_arg, CalcItemWidth(), label_size.y + style.FramePadding.y * 2.0f);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, 0, &frame_bb))
return -1;
const bool hovered = ItemHoverable(frame_bb, id);
// Determine scale from values if not specified
if (scale_min == FLT_MAX || scale_max == FLT_MAX)
{
float v_min = FLT_MAX;
float v_max = -FLT_MAX;
for (int i = 0; i < values_count; i++)
{
const float v = values_getter(data, i);
if (v != v) // Ignore NaN values
continue;
v_min = ImMin(v_min, v);
v_max = ImMax(v_max, v);
}
if (scale_min == FLT_MAX)
scale_min = v_min;
if (scale_max == FLT_MAX)
scale_max = v_max;
}
RenderFrame(frame_bb.Min, frame_bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
const int values_count_min = (plot_type == ImGuiPlotType_Lines) ? 2 : 1;
int idx_hovered = -1;
if (values_count >= values_count_min)
{
int res_w = ImMin((int)frame_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
// Tooltip on hover
if (hovered && inner_bb.Contains(g.IO.MousePos))
{
const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
const int v_idx = (int)(t * item_count);
IM_ASSERT(v_idx >= 0 && v_idx < values_count);
const float v0 = values_getter(data, (v_idx + values_offset) % values_count);
const float v1 = values_getter(data, (v_idx + 1 + values_offset) % values_count);
if (plot_type == ImGuiPlotType_Lines)
SetTooltip("%d: %8.4g\n%d: %8.4g", v_idx, v0, v_idx + 1, v1);
else if (plot_type == ImGuiPlotType_Histogram)
SetTooltip("%d: %8.4g", v_idx, v0);
idx_hovered = v_idx;
}
const float t_step = 1.0f / (float)res_w;
const float inv_scale = (scale_min == scale_max) ? 0.0f : (1.0f / (scale_max - scale_min));
float v0 = values_getter(data, (0 + values_offset) % values_count);
float t0 = 0.0f;
ImVec2 tp0 = ImVec2( t0, 1.0f - ImSaturate((v0 - scale_min) * inv_scale) ); // Point in the normalized space of our target rectangle
float histogram_zero_line_t = (scale_min * scale_max < 0.0f) ? (1 + scale_min * inv_scale) : (scale_min < 0.0f ? 0.0f : 1.0f); // Where does the zero line stands
const ImU32 col_base = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLines : ImGuiCol_PlotHistogram);
const ImU32 col_hovered = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLinesHovered : ImGuiCol_PlotHistogramHovered);
for (int n = 0; n < res_w; n++)
{
const float t1 = t0 + t_step;
const int v1_idx = (int)(t0 * item_count + 0.5f);
IM_ASSERT(v1_idx >= 0 && v1_idx < values_count);
const float v1 = values_getter(data, (v1_idx + values_offset + 1) % values_count);
const ImVec2 tp1 = ImVec2( t1, 1.0f - ImSaturate((v1 - scale_min) * inv_scale) );
// NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU.
ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, (plot_type == ImGuiPlotType_Lines) ? tp1 : ImVec2(tp1.x, histogram_zero_line_t));
if (plot_type == ImGuiPlotType_Lines)
{
window->DrawList->AddLine(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
}
else if (plot_type == ImGuiPlotType_Histogram)
{
if (pos1.x >= pos0.x + 2.0f)
pos1.x -= 1.0f;
window->DrawList->AddRectFilled(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
}
t0 = t1;
tp0 = tp1;
}
}
// Text overlay
if (overlay_text)
RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, overlay_text, NULL, NULL, ImVec2(0.5f, 0.0f));
if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
// Return hovered index or -1 if none are hovered.
// This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
return idx_hovered;
}
struct ImGuiPlotArrayGetterData
{
const float* Values;
int Stride;
ImGuiPlotArrayGetterData(const float* values, int stride) { Values = values; Stride = stride; }
};
static float Plot_ArrayGetter(void* data, int idx)
{
ImGuiPlotArrayGetterData* plot_data = (ImGuiPlotArrayGetterData*)data;
const float v = *(const float*)(const void*)((const unsigned char*)plot_data->Values + (size_t)idx * plot_data->Stride);
return v;
}
void ImGui::PlotLines(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride)
{
ImGuiPlotArrayGetterData data(values, stride);
PlotEx(ImGuiPlotType_Lines, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
}
void ImGui::PlotLines(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size)
{
PlotEx(ImGuiPlotType_Lines, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
}
void ImGui::PlotHistogram(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride)
{
ImGuiPlotArrayGetterData data(values, stride);
PlotEx(ImGuiPlotType_Histogram, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
}
void ImGui::PlotHistogram(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size)
{
PlotEx(ImGuiPlotType_Histogram, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: Value helpers
// Those is not very useful, legacy API.
//-------------------------------------------------------------------------
// - Value()
//-------------------------------------------------------------------------
void ImGui::Value(const char* prefix, bool b)
{
Text("%s: %s", prefix, (b ? "true" : "false"));
}
void ImGui::Value(const char* prefix, int v)
{
Text("%s: %d", prefix, v);
}
void ImGui::Value(const char* prefix, unsigned int v)
{
Text("%s: %d", prefix, v);
}
void ImGui::Value(const char* prefix, float v, const char* float_format)
{
if (float_format)
{
char fmt[64];
ImFormatString(fmt, IM_ARRAYSIZE(fmt), "%%s: %s", float_format);
Text(fmt, prefix, v);
}
else
{
Text("%s: %.3f", prefix, v);
}
}
//-------------------------------------------------------------------------
// [SECTION] MenuItem, BeginMenu, EndMenu, etc.
//-------------------------------------------------------------------------
// - ImGuiMenuColumns [Internal]
// - BeginMenuBar()
// - EndMenuBar()
// - BeginMainMenuBar()
// - EndMainMenuBar()
// - BeginMenu()
// - EndMenu()
// - MenuItemEx() [Internal]
// - MenuItem()
//-------------------------------------------------------------------------
// Helpers for internal use
void ImGuiMenuColumns::Update(float spacing, bool window_reappearing)
{
if (window_reappearing)
memset(Widths, 0, sizeof(Widths));
Spacing = (ImU16)spacing;
CalcNextTotalWidth(true);
memset(Widths, 0, sizeof(Widths));
TotalWidth = NextTotalWidth;
NextTotalWidth = 0;
}
void ImGuiMenuColumns::CalcNextTotalWidth(bool update_offsets)
{
ImU16 offset = 0;
bool want_spacing = false;
for (int i = 0; i < IM_ARRAYSIZE(Widths); i++)
{
ImU16 width = Widths[i];
if (want_spacing && width > 0)
offset += Spacing;
want_spacing |= (width > 0);
if (update_offsets)
{
if (i == 1) { OffsetLabel = offset; }
if (i == 2) { OffsetShortcut = offset; }
if (i == 3) { OffsetMark = offset; }
}
offset += width;
}
NextTotalWidth = offset;
}
float ImGuiMenuColumns::DeclColumns(float w_icon, float w_label, float w_shortcut, float w_mark)
{
Widths[0] = ImMax(Widths[0], (ImU16)w_icon);
Widths[1] = ImMax(Widths[1], (ImU16)w_label);
Widths[2] = ImMax(Widths[2], (ImU16)w_shortcut);
Widths[3] = ImMax(Widths[3], (ImU16)w_mark);
CalcNextTotalWidth(false);
return (float)ImMax(TotalWidth, NextTotalWidth);
}
// FIXME: Provided a rectangle perhaps e.g. a BeginMenuBarEx() could be used anywhere..
// Currently the main responsibility of this function being to setup clip-rect + horizontal layout + menu navigation layer.
// Ideally we also want this to be responsible for claiming space out of the main window scrolling rectangle, in which case ImGuiWindowFlags_MenuBar will become unnecessary.
// Then later the same system could be used for multiple menu-bars, scrollbars, side-bars.
bool ImGui::BeginMenuBar()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
if (!(window->Flags & ImGuiWindowFlags_MenuBar))
return false;
IM_ASSERT(!window->DC.MenuBarAppending);
BeginGroup(); // Backup position on layer 0 // FIXME: Misleading to use a group for that backup/restore
PushID("##menubar");
// We don't clip with current window clipping rectangle as it is already set to the area below. However we clip with window full rect.
// We remove 1 worth of rounding to Max.x to that text in long menus and small windows don't tend to display over the lower-right rounded area, which looks particularly glitchy.
ImRect bar_rect = window->MenuBarRect();
ImRect clip_rect(IM_ROUND(bar_rect.Min.x + window->WindowBorderSize), IM_ROUND(bar_rect.Min.y + window->WindowBorderSize), IM_ROUND(ImMax(bar_rect.Min.x, bar_rect.Max.x - ImMax(window->WindowRounding, window->WindowBorderSize))), IM_ROUND(bar_rect.Max.y));
clip_rect.ClipWith(window->OuterRectClipped);
PushClipRect(clip_rect.Min, clip_rect.Max, false);
// We overwrite CursorMaxPos because BeginGroup sets it to CursorPos (essentially the .EmitItem hack in EndMenuBar() would need something analogous here, maybe a BeginGroupEx() with flags).
window->DC.CursorPos = window->DC.CursorMaxPos = ImVec2(bar_rect.Min.x + window->DC.MenuBarOffset.x, bar_rect.Min.y + window->DC.MenuBarOffset.y);
window->DC.LayoutType = ImGuiLayoutType_Horizontal;
window->DC.IsSameLine = false;
window->DC.NavLayerCurrent = ImGuiNavLayer_Menu;
window->DC.MenuBarAppending = true;
AlignTextToFramePadding();
return true;
}
void ImGui::EndMenuBar()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiContext& g = *GImGui;
// Nav: When a move request within one of our child menu failed, capture the request to navigate among our siblings.
if (NavMoveRequestButNoResultYet() && (g.NavMoveDir == ImGuiDir_Left || g.NavMoveDir == ImGuiDir_Right) && (g.NavWindow->Flags & ImGuiWindowFlags_ChildMenu))
{
// Try to find out if the request is for one of our child menu
ImGuiWindow* nav_earliest_child = g.NavWindow;
while (nav_earliest_child->ParentWindow && (nav_earliest_child->ParentWindow->Flags & ImGuiWindowFlags_ChildMenu))
nav_earliest_child = nav_earliest_child->ParentWindow;
if (nav_earliest_child->ParentWindow == window && nav_earliest_child->DC.ParentLayoutType == ImGuiLayoutType_Horizontal && (g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded) == 0)
{
// To do so we claim focus back, restore NavId and then process the movement request for yet another frame.
// This involve a one-frame delay which isn't very problematic in this situation. We could remove it by scoring in advance for multiple window (probably not worth bothering)
const ImGuiNavLayer layer = ImGuiNavLayer_Menu;
IM_ASSERT(window->DC.NavLayersActiveMaskNext & (1 << layer)); // Sanity check (FIXME: Seems unnecessary)
FocusWindow(window);
SetNavID(window->NavLastIds[layer], layer, 0, window->NavRectRel[layer]);
g.NavDisableHighlight = true; // Hide highlight for the current frame so we don't see the intermediary selection.
g.NavDisableMouseHover = g.NavMousePosDirty = true;
NavMoveRequestForward(g.NavMoveDir, g.NavMoveClipDir, g.NavMoveFlags, g.NavMoveScrollFlags); // Repeat
}
}
IM_MSVC_WARNING_SUPPRESS(6011); // Static Analysis false positive "warning C6011: Dereferencing NULL pointer 'window'"
IM_ASSERT(window->Flags & ImGuiWindowFlags_MenuBar);
IM_ASSERT(window->DC.MenuBarAppending);
PopClipRect();
PopID();
window->DC.MenuBarOffset.x = window->DC.CursorPos.x - window->Pos.x; // Save horizontal position so next append can reuse it. This is kinda equivalent to a per-layer CursorPos.
g.GroupStack.back().EmitItem = false;
EndGroup(); // Restore position on layer 0
window->DC.LayoutType = ImGuiLayoutType_Vertical;
window->DC.IsSameLine = false;
window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
window->DC.MenuBarAppending = false;
}
// Important: calling order matters!
// FIXME: Somehow overlapping with docking tech.
// FIXME: The "rect-cut" aspect of this could be formalized into a lower-level helper (rect-cut: https://halt.software/dead-simple-layouts)
bool ImGui::BeginViewportSideBar(const char* name, ImGuiViewport* viewport_p, ImGuiDir dir, float axis_size, ImGuiWindowFlags window_flags)
{
IM_ASSERT(dir != ImGuiDir_None);
ImGuiWindow* bar_window = FindWindowByName(name);
if (bar_window == NULL || bar_window->BeginCount == 0)
{
// Calculate and set window size/position
ImGuiViewportP* viewport = (ImGuiViewportP*)(void*)(viewport_p ? viewport_p : GetMainViewport());
ImRect avail_rect = viewport->GetBuildWorkRect();
ImGuiAxis axis = (dir == ImGuiDir_Up || dir == ImGuiDir_Down) ? ImGuiAxis_Y : ImGuiAxis_X;
ImVec2 pos = avail_rect.Min;
if (dir == ImGuiDir_Right || dir == ImGuiDir_Down)
pos[axis] = avail_rect.Max[axis] - axis_size;
ImVec2 size = avail_rect.GetSize();
size[axis] = axis_size;
SetNextWindowPos(pos);
SetNextWindowSize(size);
// Report our size into work area (for next frame) using actual window size
if (dir == ImGuiDir_Up || dir == ImGuiDir_Left)
viewport->BuildWorkOffsetMin[axis] += axis_size;
else if (dir == ImGuiDir_Down || dir == ImGuiDir_Right)
viewport->BuildWorkOffsetMax[axis] -= axis_size;
}
window_flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
PushStyleVar(ImGuiStyleVar_WindowMinSize, ImVec2(0, 0)); // Lift normal size constraint
bool is_open = Begin(name, NULL, window_flags);
PopStyleVar(2);
return is_open;
}
bool ImGui::BeginMainMenuBar()
{
ImGuiContext& g = *GImGui;
ImGuiViewportP* viewport = (ImGuiViewportP*)(void*)GetMainViewport();
// For the main menu bar, which cannot be moved, we honor g.Style.DisplaySafeAreaPadding to ensure text can be visible on a TV set.
// FIXME: This could be generalized as an opt-in way to clamp window->DC.CursorStartPos to avoid SafeArea?
// FIXME: Consider removing support for safe area down the line... it's messy. Nowadays consoles have support for TV calibration in OS settings.
g.NextWindowData.MenuBarOffsetMinVal = ImVec2(g.Style.DisplaySafeAreaPadding.x, ImMax(g.Style.DisplaySafeAreaPadding.y - g.Style.FramePadding.y, 0.0f));
ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_MenuBar;
float height = GetFrameHeight();
bool is_open = BeginViewportSideBar("##MainMenuBar", viewport, ImGuiDir_Up, height, window_flags);
g.NextWindowData.MenuBarOffsetMinVal = ImVec2(0.0f, 0.0f);
if (is_open)
BeginMenuBar();
else
End();
return is_open;
}
void ImGui::EndMainMenuBar()
{
EndMenuBar();
// When the user has left the menu layer (typically: closed menus through activation of an item), we restore focus to the previous window
// FIXME: With this strategy we won't be able to restore a NULL focus.
ImGuiContext& g = *GImGui;
if (g.CurrentWindow == g.NavWindow && g.NavLayer == ImGuiNavLayer_Main && !g.NavAnyRequest)
FocusTopMostWindowUnderOne(g.NavWindow, NULL);
End();
}
static bool IsRootOfOpenMenuSet()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if ((g.OpenPopupStack.Size <= g.BeginPopupStack.Size) || (window->Flags & ImGuiWindowFlags_ChildMenu))
return false;
// Initially we used 'upper_popup->OpenParentId == window->IDStack.back()' to differentiate multiple menu sets from each others
// (e.g. inside menu bar vs loose menu items) based on parent ID.
// This would however prevent the use of e.g. PuhsID() user code submitting menus.
// Previously this worked between popup and a first child menu because the first child menu always had the _ChildWindow flag,
// making hovering on parent popup possible while first child menu was focused - but this was generally a bug with other side effects.
// Instead we don't treat Popup specifically (in order to consistently support menu features in them), maybe the first child menu of a Popup
// doesn't have the _ChildWindow flag, and we rely on this IsRootOfOpenMenuSet() check to allow hovering between root window/popup and first child menu.
// In the end, lack of ID check made it so we could no longer differentiate between separate menu sets. To compensate for that, we at least check parent window nav layer.
// This fixes the most common case of menu opening on hover when moving between window content and menu bar. Multiple different menu sets in same nav layer would still
// open on hover, but that should be a lesser problem, because if such menus are close in proximity in window content then it won't feel weird and if they are far apart
// it likely won't be a problem anyone runs into.
const ImGuiPopupData* upper_popup = &g.OpenPopupStack[g.BeginPopupStack.Size];
return (window->DC.NavLayerCurrent == upper_popup->ParentNavLayer && upper_popup->Window && (upper_popup->Window->Flags & ImGuiWindowFlags_ChildMenu));
}
bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
bool menu_is_open = IsPopupOpen(id, ImGuiPopupFlags_None);
// Sub-menus are ChildWindow so that mouse can be hovering across them (otherwise top-most popup menu would steal focus and not allow hovering on parent menu)
// The first menu in a hierarchy isn't so hovering doesn't get across (otherwise e.g. resizing borders with ImGuiButtonFlags_FlattenChildren would react), but top-most BeginMenu() will bypass that limitation.
ImGuiWindowFlags window_flags = ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoNavFocus;
if (window->Flags & ImGuiWindowFlags_ChildMenu)
window_flags |= ImGuiWindowFlags_ChildWindow;
// If a menu with same the ID was already submitted, we will append to it, matching the behavior of Begin().
// We are relying on a O(N) search - so O(N log N) over the frame - which seems like the most efficient for the expected small amount of BeginMenu() calls per frame.
// If somehow this is ever becoming a problem we can switch to use e.g. ImGuiStorage mapping key to last frame used.
if (g.MenusIdSubmittedThisFrame.contains(id))
{
if (menu_is_open)
menu_is_open = BeginPopupEx(id, window_flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
else
g.NextWindowData.ClearFlags(); // we behave like Begin() and need to consume those values
return menu_is_open;
}
// Tag menu as used. Next time BeginMenu() with same ID is called it will append to existing menu
g.MenusIdSubmittedThisFrame.push_back(id);
ImVec2 label_size = CalcTextSize(label, NULL, true);
// Odd hack to allow hovering across menus of a same menu-set (otherwise we wouldn't be able to hover parent without always being a Child window)
// This is only done for items for the menu set and not the full parent window.
const bool menuset_is_open = IsRootOfOpenMenuSet();
if (menuset_is_open)
PushItemFlag(ImGuiItemFlags_NoWindowHoverableCheck, true);
// The reference position stored in popup_pos will be used by Begin() to find a suitable position for the child menu,
// However the final position is going to be different! It is chosen by FindBestWindowPosForPopup().
// e.g. Menus tend to overlap each other horizontally to amplify relative Z-ordering.
ImVec2 popup_pos, pos = window->DC.CursorPos;
PushID(label);
if (!enabled)
BeginDisabled();
const ImGuiMenuColumns* offsets = &window->DC.MenuColumns;
bool pressed;
// We use ImGuiSelectableFlags_NoSetKeyOwner to allow down on one menu item, move, up on another.
const ImGuiSelectableFlags selectable_flags = ImGuiSelectableFlags_NoHoldingActiveID | ImGuiSelectableFlags_NoSetKeyOwner | ImGuiSelectableFlags_SelectOnClick | ImGuiSelectableFlags_DontClosePopups;
if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
{
// Menu inside an horizontal menu bar
// Selectable extend their highlight by half ItemSpacing in each direction.
// For ChildMenu, the popup position will be overwritten by the call to FindBestWindowPosForPopup() in Begin()
popup_pos = ImVec2(pos.x - 1.0f - IM_FLOOR(style.ItemSpacing.x * 0.5f), pos.y - style.FramePadding.y + window->MenuBarHeight());
window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * 0.5f);
PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x * 2.0f, style.ItemSpacing.y));
float w = label_size.x;
ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
pressed = Selectable("", menu_is_open, selectable_flags, ImVec2(w, label_size.y));
RenderText(text_pos, label);
PopStyleVar();
window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar().
}
else
{
// Menu inside a regular/vertical menu
// (In a typical menu window where all items are BeginMenu() or MenuItem() calls, extra_w will always be 0.0f.
// Only when they are other items sticking out we're going to add spacing, yet only register minimum width into the layout system.
popup_pos = ImVec2(pos.x, pos.y - style.WindowPadding.y);
float icon_w = (icon && icon[0]) ? CalcTextSize(icon, NULL).x : 0.0f;
float checkmark_w = IM_FLOOR(g.FontSize * 1.20f);
float min_w = window->DC.MenuColumns.DeclColumns(icon_w, label_size.x, 0.0f, checkmark_w); // Feedback to next frame
float extra_w = ImMax(0.0f, GetContentRegionAvail().x - min_w);
ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
pressed = Selectable("", menu_is_open, selectable_flags | ImGuiSelectableFlags_SpanAvailWidth, ImVec2(min_w, label_size.y));
RenderText(text_pos, label);
if (icon_w > 0.0f)
RenderText(pos + ImVec2(offsets->OffsetIcon, 0.0f), icon);
RenderArrow(window->DrawList, pos + ImVec2(offsets->OffsetMark + extra_w + g.FontSize * 0.30f, 0.0f), GetColorU32(ImGuiCol_Text), ImGuiDir_Right);
}
if (!enabled)
EndDisabled();
const bool hovered = (g.HoveredId == id) && enabled && !g.NavDisableMouseHover;
if (menuset_is_open)
PopItemFlag();
bool want_open = false;
bool want_close = false;
if (window->DC.LayoutType == ImGuiLayoutType_Vertical) // (window->Flags & (ImGuiWindowFlags_Popup|ImGuiWindowFlags_ChildMenu))
{
// Close menu when not hovering it anymore unless we are moving roughly in the direction of the menu
// Implement http://bjk5.com/post/44698559168/breaking-down-amazons-mega-dropdown to avoid using timers, so menus feels more reactive.
bool moving_toward_child_menu = false;
ImGuiPopupData* child_popup = (g.BeginPopupStack.Size < g.OpenPopupStack.Size) ? &g.OpenPopupStack[g.BeginPopupStack.Size] : NULL; // Popup candidate (testing below)
ImGuiWindow* child_menu_window = (child_popup && child_popup->Window && child_popup->Window->ParentWindow == window) ? child_popup->Window : NULL;
if (g.HoveredWindow == window && child_menu_window != NULL)
{
float ref_unit = g.FontSize; // FIXME-DPI
float child_dir = (window->Pos.x < child_menu_window->Pos.x) ? 1.0f : -1.0f;
ImRect next_window_rect = child_menu_window->Rect();
ImVec2 ta = (g.IO.MousePos - g.IO.MouseDelta);
ImVec2 tb = (child_dir > 0.0f) ? next_window_rect.GetTL() : next_window_rect.GetTR();
ImVec2 tc = (child_dir > 0.0f) ? next_window_rect.GetBL() : next_window_rect.GetBR();
float extra = ImClamp(ImFabs(ta.x - tb.x) * 0.30f, ref_unit * 0.5f, ref_unit * 2.5f); // add a bit of extra slack.
ta.x += child_dir * -0.5f;
tb.x += child_dir * ref_unit;
tc.x += child_dir * ref_unit;
tb.y = ta.y + ImMax((tb.y - extra) - ta.y, -ref_unit * 8.0f); // triangle has maximum height to limit the slope and the bias toward large sub-menus
tc.y = ta.y + ImMin((tc.y + extra) - ta.y, +ref_unit * 8.0f);
moving_toward_child_menu = ImTriangleContainsPoint(ta, tb, tc, g.IO.MousePos);
//GetForegroundDrawList()->AddTriangleFilled(ta, tb, tc, moving_toward_child_menu ? IM_COL32(0,128,0,128) : IM_COL32(128,0,0,128)); // [DEBUG]
}
// The 'HovereWindow == window' check creates an inconsistency (e.g. moving away from menu slowly tends to hit same window, whereas moving away fast does not)
// But we also need to not close the top-menu menu when moving over void. Perhaps we should extend the triangle check to a larger polygon.
// (Remember to test this on BeginPopup("A")->BeginMenu("B") sequence which behaves slightly differently as B isn't a Child of A and hovering isn't shared.)
if (menu_is_open && !hovered && g.HoveredWindow == window && !moving_toward_child_menu && !g.NavDisableMouseHover)
want_close = true;
// Open
if (!menu_is_open && pressed) // Click/activate to open
want_open = true;
else if (!menu_is_open && hovered && !moving_toward_child_menu) // Hover to open
want_open = true;
if (g.NavId == id && g.NavMoveDir == ImGuiDir_Right) // Nav-Right to open
{
want_open = true;
NavMoveRequestCancel();
}
}
else
{
// Menu bar
if (menu_is_open && pressed && menuset_is_open) // Click an open menu again to close it
{
want_close = true;
want_open = menu_is_open = false;
}
else if (pressed || (hovered && menuset_is_open && !menu_is_open)) // First click to open, then hover to open others
{
want_open = true;
}
else if (g.NavId == id && g.NavMoveDir == ImGuiDir_Down) // Nav-Down to open
{
want_open = true;
NavMoveRequestCancel();
}
}
if (!enabled) // explicitly close if an open menu becomes disabled, facilitate users code a lot in pattern such as 'if (BeginMenu("options", has_object)) { ..use object.. }'
want_close = true;
if (want_close && IsPopupOpen(id, ImGuiPopupFlags_None))
ClosePopupToLevel(g.BeginPopupStack.Size, true);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Openable | (menu_is_open ? ImGuiItemStatusFlags_Opened : 0));
PopID();
if (want_open && !menu_is_open && g.OpenPopupStack.Size > g.BeginPopupStack.Size)
{
// Don't reopen/recycle same menu level in the same frame, first close the other menu and yield for a frame.
OpenPopup(label);
}
else if (want_open)
{
menu_is_open = true;
OpenPopup(label);
}
if (menu_is_open)
{
ImGuiLastItemData last_item_in_parent = g.LastItemData;
SetNextWindowPos(popup_pos, ImGuiCond_Always); // Note: misleading: the value will serve as reference for FindBestWindowPosForPopup(), not actual pos.
PushStyleVar(ImGuiStyleVar_ChildRounding, style.PopupRounding); // First level will use _PopupRounding, subsequent will use _ChildRounding
menu_is_open = BeginPopupEx(id, window_flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
PopStyleVar();
if (menu_is_open)
{
// Restore LastItemData so IsItemXXXX functions can work after BeginMenu()/EndMenu()
// (This fixes using IsItemClicked() and IsItemHovered(), but IsItemHovered() also relies on its support for ImGuiItemFlags_NoWindowHoverableCheck)
g.LastItemData = last_item_in_parent;
if (g.HoveredWindow == window)
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredWindow;
}
}
else
{
g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
}
return menu_is_open;
}
bool ImGui::BeginMenu(const char* label, bool enabled)
{
return BeginMenuEx(label, NULL, enabled);
}
void ImGui::EndMenu()
{
// Nav: When a left move request our menu failed, close ourselves.
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(window->Flags & ImGuiWindowFlags_Popup); // Mismatched BeginMenu()/EndMenu() calls
ImGuiWindow* parent_window = window->ParentWindow; // Should always be != NULL is we passed assert.
if (window->BeginCount == window->BeginCountPreviousFrame)
if (g.NavMoveDir == ImGuiDir_Left && NavMoveRequestButNoResultYet())
if (g.NavWindow && (g.NavWindow->RootWindowForNav == window) && parent_window->DC.LayoutType == ImGuiLayoutType_Vertical)
{
ClosePopupToLevel(g.BeginPopupStack.Size - 1, true);
NavMoveRequestCancel();
}
EndPopup();
}
bool ImGui::MenuItemEx(const char* label, const char* icon, const char* shortcut, bool selected, bool enabled)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
ImGuiContext& g = *GImGui;
ImGuiStyle& style = g.Style;
ImVec2 pos = window->DC.CursorPos;
ImVec2 label_size = CalcTextSize(label, NULL, true);
// See BeginMenuEx() for comments about this.
const bool menuset_is_open = IsRootOfOpenMenuSet();
if (menuset_is_open)
PushItemFlag(ImGuiItemFlags_NoWindowHoverableCheck, true);
// We've been using the equivalent of ImGuiSelectableFlags_SetNavIdOnHover on all Selectable() since early Nav system days (commit 43ee5d73),
// but I am unsure whether this should be kept at all. For now moved it to be an opt-in feature used by menus only.
bool pressed;
PushID(label);
if (!enabled)
BeginDisabled();
// We use ImGuiSelectableFlags_NoSetKeyOwner to allow down on one menu item, move, up on another.
const ImGuiSelectableFlags selectable_flags = ImGuiSelectableFlags_SelectOnRelease | ImGuiSelectableFlags_NoSetKeyOwner | ImGuiSelectableFlags_SetNavIdOnHover;
const ImGuiMenuColumns* offsets = &window->DC.MenuColumns;
if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
{
// Mimic the exact layout spacing of BeginMenu() to allow MenuItem() inside a menu bar, which is a little misleading but may be useful
// Note that in this situation: we don't render the shortcut, we render a highlight instead of the selected tick mark.
float w = label_size.x;
window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * 0.5f);
ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x * 2.0f, style.ItemSpacing.y));
pressed = Selectable("", selected, selectable_flags, ImVec2(w, 0.0f));
PopStyleVar();
if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Visible)
RenderText(text_pos, label);
window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar().
}
else
{
// Menu item inside a vertical menu
// (In a typical menu window where all items are BeginMenu() or MenuItem() calls, extra_w will always be 0.0f.
// Only when they are other items sticking out we're going to add spacing, yet only register minimum width into the layout system.
float icon_w = (icon && icon[0]) ? CalcTextSize(icon, NULL).x : 0.0f;
float shortcut_w = (shortcut && shortcut[0]) ? CalcTextSize(shortcut, NULL).x : 0.0f;
float checkmark_w = IM_FLOOR(g.FontSize * 1.20f);
float min_w = window->DC.MenuColumns.DeclColumns(icon_w, label_size.x, shortcut_w, checkmark_w); // Feedback for next frame
float stretch_w = ImMax(0.0f, GetContentRegionAvail().x - min_w);
pressed = Selectable("", false, selectable_flags | ImGuiSelectableFlags_SpanAvailWidth, ImVec2(min_w, label_size.y));
if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Visible)
{
RenderText(pos + ImVec2(offsets->OffsetLabel, 0.0f), label);
if (icon_w > 0.0f)
RenderText(pos + ImVec2(offsets->OffsetIcon, 0.0f), icon);
if (shortcut_w > 0.0f)
{
PushStyleColor(ImGuiCol_Text, style.Colors[ImGuiCol_TextDisabled]);
RenderText(pos + ImVec2(offsets->OffsetShortcut + stretch_w, 0.0f), shortcut, NULL, false);
PopStyleColor();
}
if (selected)
RenderCheckMark(window->DrawList, pos + ImVec2(offsets->OffsetMark + stretch_w + g.FontSize * 0.40f, g.FontSize * 0.134f * 0.5f), GetColorU32(ImGuiCol_Text), g.FontSize * 0.866f);
}
}
IMGUI_TEST_ENGINE_ITEM_INFO(g.LastItemData.ID, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (selected ? ImGuiItemStatusFlags_Checked : 0));
if (!enabled)
EndDisabled();
PopID();
if (menuset_is_open)
PopItemFlag();
return pressed;
}
bool ImGui::MenuItem(const char* label, const char* shortcut, bool selected, bool enabled)
{
return MenuItemEx(label, NULL, shortcut, selected, enabled);
}
bool ImGui::MenuItem(const char* label, const char* shortcut, bool* p_selected, bool enabled)
{
if (MenuItemEx(label, NULL, shortcut, p_selected ? *p_selected : false, enabled))
{
if (p_selected)
*p_selected = !*p_selected;
return true;
}
return false;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: BeginTabBar, EndTabBar, etc.
//-------------------------------------------------------------------------
// - BeginTabBar()
// - BeginTabBarEx() [Internal]
// - EndTabBar()
// - TabBarLayout() [Internal]
// - TabBarCalcTabID() [Internal]
// - TabBarCalcMaxTabWidth() [Internal]
// - TabBarFindTabById() [Internal]
// - TabBarFindTabByOrder() [Internal]
// - TabBarGetCurrentTab() [Internal]
// - TabBarGetTabName() [Internal]
// - TabBarRemoveTab() [Internal]
// - TabBarCloseTab() [Internal]
// - TabBarScrollClamp() [Internal]
// - TabBarScrollToTab() [Internal]
// - TabBarQueueFocus() [Internal]
// - TabBarQueueReorder() [Internal]
// - TabBarProcessReorderFromMousePos() [Internal]
// - TabBarProcessReorder() [Internal]
// - TabBarScrollingButtons() [Internal]
// - TabBarTabListPopupButton() [Internal]
//-------------------------------------------------------------------------
struct ImGuiTabBarSection
{
int TabCount; // Number of tabs in this section.
float Width; // Sum of width of tabs in this section (after shrinking down)
float Spacing; // Horizontal spacing at the end of the section.
ImGuiTabBarSection() { memset(this, 0, sizeof(*this)); }
};
namespace ImGui
{
static void TabBarLayout(ImGuiTabBar* tab_bar);
static ImU32 TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label, ImGuiWindow* docked_window);
static float TabBarCalcMaxTabWidth();
static float TabBarScrollClamp(ImGuiTabBar* tab_bar, float scrolling);
static void TabBarScrollToTab(ImGuiTabBar* tab_bar, ImGuiID tab_id, ImGuiTabBarSection* sections);
static ImGuiTabItem* TabBarScrollingButtons(ImGuiTabBar* tab_bar);
static ImGuiTabItem* TabBarTabListPopupButton(ImGuiTabBar* tab_bar);
}
ImGuiTabBar::ImGuiTabBar()
{
memset(this, 0, sizeof(*this));
CurrFrameVisible = PrevFrameVisible = -1;
LastTabItemIdx = -1;
}
static inline int TabItemGetSectionIdx(const ImGuiTabItem* tab)
{
return (tab->Flags & ImGuiTabItemFlags_Leading) ? 0 : (tab->Flags & ImGuiTabItemFlags_Trailing) ? 2 : 1;
}
static int IMGUI_CDECL TabItemComparerBySection(const void* lhs, const void* rhs)
{
const ImGuiTabItem* a = (const ImGuiTabItem*)lhs;
const ImGuiTabItem* b = (const ImGuiTabItem*)rhs;
const int a_section = TabItemGetSectionIdx(a);
const int b_section = TabItemGetSectionIdx(b);
if (a_section != b_section)
return a_section - b_section;
return (int)(a->IndexDuringLayout - b->IndexDuringLayout);
}
static int IMGUI_CDECL TabItemComparerByBeginOrder(const void* lhs, const void* rhs)
{
const ImGuiTabItem* a = (const ImGuiTabItem*)lhs;
const ImGuiTabItem* b = (const ImGuiTabItem*)rhs;
return (int)(a->BeginOrder - b->BeginOrder);
}
static ImGuiTabBar* GetTabBarFromTabBarRef(const ImGuiPtrOrIndex& ref)
{
ImGuiContext& g = *GImGui;
return ref.Ptr ? (ImGuiTabBar*)ref.Ptr : g.TabBars.GetByIndex(ref.Index);
}
static ImGuiPtrOrIndex GetTabBarRefFromTabBar(ImGuiTabBar* tab_bar)
{
ImGuiContext& g = *GImGui;
if (g.TabBars.Contains(tab_bar))
return ImGuiPtrOrIndex(g.TabBars.GetIndex(tab_bar));
return ImGuiPtrOrIndex(tab_bar);
}
bool ImGui::BeginTabBar(const char* str_id, ImGuiTabBarFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
ImGuiID id = window->GetID(str_id);
ImGuiTabBar* tab_bar = g.TabBars.GetOrAddByKey(id);
ImRect tab_bar_bb = ImRect(window->DC.CursorPos.x, window->DC.CursorPos.y, window->WorkRect.Max.x, window->DC.CursorPos.y + g.FontSize + g.Style.FramePadding.y * 2);
tab_bar->ID = id;
return BeginTabBarEx(tab_bar, tab_bar_bb, flags | ImGuiTabBarFlags_IsFocused);
}
bool ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImGuiTabBarFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
if ((flags & ImGuiTabBarFlags_DockNode) == 0)
PushOverrideID(tab_bar->ID);
// Add to stack
g.CurrentTabBarStack.push_back(GetTabBarRefFromTabBar(tab_bar));
g.CurrentTabBar = tab_bar;
// Append with multiple BeginTabBar()/EndTabBar() pairs.
tab_bar->BackupCursorPos = window->DC.CursorPos;
if (tab_bar->CurrFrameVisible == g.FrameCount)
{
window->DC.CursorPos = ImVec2(tab_bar->BarRect.Min.x, tab_bar->BarRect.Max.y + tab_bar->ItemSpacingY);
tab_bar->BeginCount++;
return true;
}
// Ensure correct ordering when toggling ImGuiTabBarFlags_Reorderable flag, or when a new tab was added while being not reorderable
if ((flags & ImGuiTabBarFlags_Reorderable) != (tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (tab_bar->TabsAddedNew && !(flags & ImGuiTabBarFlags_Reorderable)))
ImQsort(tab_bar->Tabs.Data, tab_bar->Tabs.Size, sizeof(ImGuiTabItem), TabItemComparerByBeginOrder);
tab_bar->TabsAddedNew = false;
// Flags
if ((flags & ImGuiTabBarFlags_FittingPolicyMask_) == 0)
flags |= ImGuiTabBarFlags_FittingPolicyDefault_;
tab_bar->Flags = flags;
tab_bar->BarRect = tab_bar_bb;
tab_bar->WantLayout = true; // Layout will be done on the first call to ItemTab()
tab_bar->PrevFrameVisible = tab_bar->CurrFrameVisible;
tab_bar->CurrFrameVisible = g.FrameCount;
tab_bar->PrevTabsContentsHeight = tab_bar->CurrTabsContentsHeight;
tab_bar->CurrTabsContentsHeight = 0.0f;
tab_bar->ItemSpacingY = g.Style.ItemSpacing.y;
tab_bar->FramePadding = g.Style.FramePadding;
tab_bar->TabsActiveCount = 0;
tab_bar->LastTabItemIdx = -1;
tab_bar->BeginCount = 1;
// Set cursor pos in a way which only be used in the off-chance the user erroneously submits item before BeginTabItem(): items will overlap
window->DC.CursorPos = ImVec2(tab_bar->BarRect.Min.x, tab_bar->BarRect.Max.y + tab_bar->ItemSpacingY);
// Draw separator
const ImU32 col = GetColorU32((flags & ImGuiTabBarFlags_IsFocused) ? ImGuiCol_TabActive : ImGuiCol_TabUnfocusedActive);
const float y = tab_bar->BarRect.Max.y - 1.0f;
{
const float separator_min_x = tab_bar->BarRect.Min.x - IM_FLOOR(window->WindowPadding.x * 0.5f);
const float separator_max_x = tab_bar->BarRect.Max.x + IM_FLOOR(window->WindowPadding.x * 0.5f);
window->DrawList->AddLine(ImVec2(separator_min_x, y), ImVec2(separator_max_x, y), col, 1.0f);
}
return true;
}
void ImGui::EndTabBar()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
ImGuiTabBar* tab_bar = g.CurrentTabBar;
if (tab_bar == NULL)
{
IM_ASSERT_USER_ERROR(tab_bar != NULL, "Mismatched BeginTabBar()/EndTabBar()!");
return;
}
// Fallback in case no TabItem have been submitted
if (tab_bar->WantLayout)
TabBarLayout(tab_bar);
// Restore the last visible height if no tab is visible, this reduce vertical flicker/movement when a tabs gets removed without calling SetTabItemClosed().
const bool tab_bar_appearing = (tab_bar->PrevFrameVisible + 1 < g.FrameCount);
if (tab_bar->VisibleTabWasSubmitted || tab_bar->VisibleTabId == 0 || tab_bar_appearing)
{
tab_bar->CurrTabsContentsHeight = ImMax(window->DC.CursorPos.y - tab_bar->BarRect.Max.y, tab_bar->CurrTabsContentsHeight);
window->DC.CursorPos.y = tab_bar->BarRect.Max.y + tab_bar->CurrTabsContentsHeight;
}
else
{
window->DC.CursorPos.y = tab_bar->BarRect.Max.y + tab_bar->PrevTabsContentsHeight;
}
if (tab_bar->BeginCount > 1)
window->DC.CursorPos = tab_bar->BackupCursorPos;
tab_bar->LastTabItemIdx = -1;
if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0)
PopID();
g.CurrentTabBarStack.pop_back();
g.CurrentTabBar = g.CurrentTabBarStack.empty() ? NULL : GetTabBarFromTabBarRef(g.CurrentTabBarStack.back());
}
// This is called only once a frame before by the first call to ItemTab()
// The reason we're not calling it in BeginTabBar() is to leave a chance to the user to call the SetTabItemClosed() functions.
static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
{
ImGuiContext& g = *GImGui;
tab_bar->WantLayout = false;
// Garbage collect by compacting list
// Detect if we need to sort out tab list (e.g. in rare case where a tab changed section)
int tab_dst_n = 0;
bool need_sort_by_section = false;
ImGuiTabBarSection sections[3]; // Layout sections: Leading, Central, Trailing
for (int tab_src_n = 0; tab_src_n < tab_bar->Tabs.Size; tab_src_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[tab_src_n];
if (tab->LastFrameVisible < tab_bar->PrevFrameVisible || tab->WantClose)
{
// Remove tab
if (tab_bar->VisibleTabId == tab->ID) { tab_bar->VisibleTabId = 0; }
if (tab_bar->SelectedTabId == tab->ID) { tab_bar->SelectedTabId = 0; }
if (tab_bar->NextSelectedTabId == tab->ID) { tab_bar->NextSelectedTabId = 0; }
continue;
}
if (tab_dst_n != tab_src_n)
tab_bar->Tabs[tab_dst_n] = tab_bar->Tabs[tab_src_n];
tab = &tab_bar->Tabs[tab_dst_n];
tab->IndexDuringLayout = (ImS16)tab_dst_n;
// We will need sorting if tabs have changed section (e.g. moved from one of Leading/Central/Trailing to another)
int curr_tab_section_n = TabItemGetSectionIdx(tab);
if (tab_dst_n > 0)
{
ImGuiTabItem* prev_tab = &tab_bar->Tabs[tab_dst_n - 1];
int prev_tab_section_n = TabItemGetSectionIdx(prev_tab);
if (curr_tab_section_n == 0 && prev_tab_section_n != 0)
need_sort_by_section = true;
if (prev_tab_section_n == 2 && curr_tab_section_n != 2)
need_sort_by_section = true;
}
sections[curr_tab_section_n].TabCount++;
tab_dst_n++;
}
if (tab_bar->Tabs.Size != tab_dst_n)
tab_bar->Tabs.resize(tab_dst_n);
if (need_sort_by_section)
ImQsort(tab_bar->Tabs.Data, tab_bar->Tabs.Size, sizeof(ImGuiTabItem), TabItemComparerBySection);
// Calculate spacing between sections
sections[0].Spacing = sections[0].TabCount > 0 && (sections[1].TabCount + sections[2].TabCount) > 0 ? g.Style.ItemInnerSpacing.x : 0.0f;
sections[1].Spacing = sections[1].TabCount > 0 && sections[2].TabCount > 0 ? g.Style.ItemInnerSpacing.x : 0.0f;
// Setup next selected tab
ImGuiID scroll_to_tab_id = 0;
if (tab_bar->NextSelectedTabId)
{
tab_bar->SelectedTabId = tab_bar->NextSelectedTabId;
tab_bar->NextSelectedTabId = 0;
scroll_to_tab_id = tab_bar->SelectedTabId;
}
// Process order change request (we could probably process it when requested but it's just saner to do it in a single spot).
if (tab_bar->ReorderRequestTabId != 0)
{
if (TabBarProcessReorder(tab_bar))
if (tab_bar->ReorderRequestTabId == tab_bar->SelectedTabId)
scroll_to_tab_id = tab_bar->ReorderRequestTabId;
tab_bar->ReorderRequestTabId = 0;
}
// Tab List Popup (will alter tab_bar->BarRect and therefore the available width!)
const bool tab_list_popup_button = (tab_bar->Flags & ImGuiTabBarFlags_TabListPopupButton) != 0;
if (tab_list_popup_button)
if (ImGuiTabItem* tab_to_select = TabBarTabListPopupButton(tab_bar)) // NB: Will alter BarRect.Min.x!
scroll_to_tab_id = tab_bar->SelectedTabId = tab_to_select->ID;
// Leading/Trailing tabs will be shrink only if central one aren't visible anymore, so layout the shrink data as: leading, trailing, central
// (whereas our tabs are stored as: leading, central, trailing)
int shrink_buffer_indexes[3] = { 0, sections[0].TabCount + sections[2].TabCount, sections[0].TabCount };
g.ShrinkWidthBuffer.resize(tab_bar->Tabs.Size);
// Compute ideal tabs widths + store them into shrink buffer
ImGuiTabItem* most_recently_selected_tab = NULL;
int curr_section_n = -1;
bool found_selected_tab_id = false;
for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
IM_ASSERT(tab->LastFrameVisible >= tab_bar->PrevFrameVisible);
if ((most_recently_selected_tab == NULL || most_recently_selected_tab->LastFrameSelected < tab->LastFrameSelected) && !(tab->Flags & ImGuiTabItemFlags_Button))
most_recently_selected_tab = tab;
if (tab->ID == tab_bar->SelectedTabId)
found_selected_tab_id = true;
if (scroll_to_tab_id == 0 && g.NavJustMovedToId == tab->ID)
scroll_to_tab_id = tab->ID;
// Refresh tab width immediately, otherwise changes of style e.g. style.FramePadding.x would noticeably lag in the tab bar.
// Additionally, when using TabBarAddTab() to manipulate tab bar order we occasionally insert new tabs that don't have a width yet,
// and we cannot wait for the next BeginTabItem() call. We cannot compute this width within TabBarAddTab() because font size depends on the active window.
const char* tab_name = TabBarGetTabName(tab_bar, tab);
const bool has_close_button_or_unsaved_marker = (tab->Flags & ImGuiTabItemFlags_NoCloseButton) == 0 || (tab->Flags & ImGuiTabItemFlags_UnsavedDocument);
tab->ContentWidth = (tab->RequestedWidth >= 0.0f) ? tab->RequestedWidth : TabItemCalcSize(tab_name, has_close_button_or_unsaved_marker).x;
int section_n = TabItemGetSectionIdx(tab);
ImGuiTabBarSection* section = §ions[section_n];
section->Width += tab->ContentWidth + (section_n == curr_section_n ? g.Style.ItemInnerSpacing.x : 0.0f);
curr_section_n = section_n;
// Store data so we can build an array sorted by width if we need to shrink tabs down
IM_MSVC_WARNING_SUPPRESS(6385);
ImGuiShrinkWidthItem* shrink_width_item = &g.ShrinkWidthBuffer[shrink_buffer_indexes[section_n]++];
shrink_width_item->Index = tab_n;
shrink_width_item->Width = shrink_width_item->InitialWidth = tab->ContentWidth;
tab->Width = ImMax(tab->ContentWidth, 1.0f);
}
// Compute total ideal width (used for e.g. auto-resizing a window)
tab_bar->WidthAllTabsIdeal = 0.0f;
for (int section_n = 0; section_n < 3; section_n++)
tab_bar->WidthAllTabsIdeal += sections[section_n].Width + sections[section_n].Spacing;
// Horizontal scrolling buttons
// (note that TabBarScrollButtons() will alter BarRect.Max.x)
if ((tab_bar->WidthAllTabsIdeal > tab_bar->BarRect.GetWidth() && tab_bar->Tabs.Size > 1) && !(tab_bar->Flags & ImGuiTabBarFlags_NoTabListScrollingButtons) && (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyScroll))
if (ImGuiTabItem* scroll_and_select_tab = TabBarScrollingButtons(tab_bar))
{
scroll_to_tab_id = scroll_and_select_tab->ID;
if ((scroll_and_select_tab->Flags & ImGuiTabItemFlags_Button) == 0)
tab_bar->SelectedTabId = scroll_to_tab_id;
}
// Shrink widths if full tabs don't fit in their allocated space
float section_0_w = sections[0].Width + sections[0].Spacing;
float section_1_w = sections[1].Width + sections[1].Spacing;
float section_2_w = sections[2].Width + sections[2].Spacing;
bool central_section_is_visible = (section_0_w + section_2_w) < tab_bar->BarRect.GetWidth();
float width_excess;
if (central_section_is_visible)
width_excess = ImMax(section_1_w - (tab_bar->BarRect.GetWidth() - section_0_w - section_2_w), 0.0f); // Excess used to shrink central section
else
width_excess = (section_0_w + section_2_w) - tab_bar->BarRect.GetWidth(); // Excess used to shrink leading/trailing section
// With ImGuiTabBarFlags_FittingPolicyScroll policy, we will only shrink leading/trailing if the central section is not visible anymore
if (width_excess >= 1.0f && ((tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyResizeDown) || !central_section_is_visible))
{
int shrink_data_count = (central_section_is_visible ? sections[1].TabCount : sections[0].TabCount + sections[2].TabCount);
int shrink_data_offset = (central_section_is_visible ? sections[0].TabCount + sections[2].TabCount : 0);
ShrinkWidths(g.ShrinkWidthBuffer.Data + shrink_data_offset, shrink_data_count, width_excess);
// Apply shrunk values into tabs and sections
for (int tab_n = shrink_data_offset; tab_n < shrink_data_offset + shrink_data_count; tab_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[g.ShrinkWidthBuffer[tab_n].Index];
float shrinked_width = IM_FLOOR(g.ShrinkWidthBuffer[tab_n].Width);
if (shrinked_width < 0.0f)
continue;
shrinked_width = ImMax(1.0f, shrinked_width);
int section_n = TabItemGetSectionIdx(tab);
sections[section_n].Width -= (tab->Width - shrinked_width);
tab->Width = shrinked_width;
}
}
// Layout all active tabs
int section_tab_index = 0;
float tab_offset = 0.0f;
tab_bar->WidthAllTabs = 0.0f;
for (int section_n = 0; section_n < 3; section_n++)
{
ImGuiTabBarSection* section = §ions[section_n];
if (section_n == 2)
tab_offset = ImMin(ImMax(0.0f, tab_bar->BarRect.GetWidth() - section->Width), tab_offset);
for (int tab_n = 0; tab_n < section->TabCount; tab_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[section_tab_index + tab_n];
tab->Offset = tab_offset;
tab->NameOffset = -1;
tab_offset += tab->Width + (tab_n < section->TabCount - 1 ? g.Style.ItemInnerSpacing.x : 0.0f);
}
tab_bar->WidthAllTabs += ImMax(section->Width + section->Spacing, 0.0f);
tab_offset += section->Spacing;
section_tab_index += section->TabCount;
}
// Clear name buffers
tab_bar->TabsNames.Buf.resize(0);
// If we have lost the selected tab, select the next most recently active one
if (found_selected_tab_id == false)
tab_bar->SelectedTabId = 0;
if (tab_bar->SelectedTabId == 0 && tab_bar->NextSelectedTabId == 0 && most_recently_selected_tab != NULL)
scroll_to_tab_id = tab_bar->SelectedTabId = most_recently_selected_tab->ID;
// Lock in visible tab
tab_bar->VisibleTabId = tab_bar->SelectedTabId;
tab_bar->VisibleTabWasSubmitted = false;
// Update scrolling
if (scroll_to_tab_id != 0)
TabBarScrollToTab(tab_bar, scroll_to_tab_id, sections);
tab_bar->ScrollingAnim = TabBarScrollClamp(tab_bar, tab_bar->ScrollingAnim);
tab_bar->ScrollingTarget = TabBarScrollClamp(tab_bar, tab_bar->ScrollingTarget);
if (tab_bar->ScrollingAnim != tab_bar->ScrollingTarget)
{
// Scrolling speed adjust itself so we can always reach our target in 1/3 seconds.
// Teleport if we are aiming far off the visible line
tab_bar->ScrollingSpeed = ImMax(tab_bar->ScrollingSpeed, 70.0f * g.FontSize);
tab_bar->ScrollingSpeed = ImMax(tab_bar->ScrollingSpeed, ImFabs(tab_bar->ScrollingTarget - tab_bar->ScrollingAnim) / 0.3f);
const bool teleport = (tab_bar->PrevFrameVisible + 1 < g.FrameCount) || (tab_bar->ScrollingTargetDistToVisibility > 10.0f * g.FontSize);
tab_bar->ScrollingAnim = teleport ? tab_bar->ScrollingTarget : ImLinearSweep(tab_bar->ScrollingAnim, tab_bar->ScrollingTarget, g.IO.DeltaTime * tab_bar->ScrollingSpeed);
}
else
{
tab_bar->ScrollingSpeed = 0.0f;
}
tab_bar->ScrollingRectMinX = tab_bar->BarRect.Min.x + sections[0].Width + sections[0].Spacing;
tab_bar->ScrollingRectMaxX = tab_bar->BarRect.Max.x - sections[2].Width - sections[1].Spacing;
// Actual layout in host window (we don't do it in BeginTabBar() so as not to waste an extra frame)
ImGuiWindow* window = g.CurrentWindow;
window->DC.CursorPos = tab_bar->BarRect.Min;
ItemSize(ImVec2(tab_bar->WidthAllTabs, tab_bar->BarRect.GetHeight()), tab_bar->FramePadding.y);
window->DC.IdealMaxPos.x = ImMax(window->DC.IdealMaxPos.x, tab_bar->BarRect.Min.x + tab_bar->WidthAllTabsIdeal);
}
// Dockable windows uses Name/ID in the global namespace. Non-dockable items use the ID stack.
static ImU32 ImGui::TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label, ImGuiWindow* docked_window)
{
IM_ASSERT(docked_window == NULL); // master branch only
IM_UNUSED(docked_window);
if (tab_bar->Flags & ImGuiTabBarFlags_DockNode)
{
ImGuiID id = ImHashStr(label);
KeepAliveID(id);
return id;
}
else
{
ImGuiWindow* window = GImGui->CurrentWindow;
return window->GetID(label);
}
}
static float ImGui::TabBarCalcMaxTabWidth()
{
ImGuiContext& g = *GImGui;
return g.FontSize * 20.0f;
}
ImGuiTabItem* ImGui::TabBarFindTabByID(ImGuiTabBar* tab_bar, ImGuiID tab_id)
{
if (tab_id != 0)
for (int n = 0; n < tab_bar->Tabs.Size; n++)
if (tab_bar->Tabs[n].ID == tab_id)
return &tab_bar->Tabs[n];
return NULL;
}
// Order = visible order, not submission order! (which is tab->BeginOrder)
ImGuiTabItem* ImGui::TabBarFindTabByOrder(ImGuiTabBar* tab_bar, int order)
{
if (order < 0 || order >= tab_bar->Tabs.Size)
return NULL;
return &tab_bar->Tabs[order];
}
ImGuiTabItem* ImGui::TabBarGetCurrentTab(ImGuiTabBar* tab_bar)
{
if (tab_bar->LastTabItemIdx <= 0 || tab_bar->LastTabItemIdx >= tab_bar->Tabs.Size)
return NULL;
return &tab_bar->Tabs[tab_bar->LastTabItemIdx];
}
const char* ImGui::TabBarGetTabName(ImGuiTabBar* tab_bar, ImGuiTabItem* tab)
{
if (tab->NameOffset == -1)
return "N/A";
IM_ASSERT(tab->NameOffset < tab_bar->TabsNames.Buf.Size);
return tab_bar->TabsNames.Buf.Data + tab->NameOffset;
}
// The *TabId fields are already set by the docking system _before_ the actual TabItem was created, so we clear them regardless.
void ImGui::TabBarRemoveTab(ImGuiTabBar* tab_bar, ImGuiID tab_id)
{
if (ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id))
tab_bar->Tabs.erase(tab);
if (tab_bar->VisibleTabId == tab_id) { tab_bar->VisibleTabId = 0; }
if (tab_bar->SelectedTabId == tab_id) { tab_bar->SelectedTabId = 0; }
if (tab_bar->NextSelectedTabId == tab_id) { tab_bar->NextSelectedTabId = 0; }
}
// Called on manual closure attempt
void ImGui::TabBarCloseTab(ImGuiTabBar* tab_bar, ImGuiTabItem* tab)
{
if (tab->Flags & ImGuiTabItemFlags_Button)
return; // A button appended with TabItemButton().
if (!(tab->Flags & ImGuiTabItemFlags_UnsavedDocument))
{
// This will remove a frame of lag for selecting another tab on closure.
// However we don't run it in the case where the 'Unsaved' flag is set, so user gets a chance to fully undo the closure
tab->WantClose = true;
if (tab_bar->VisibleTabId == tab->ID)
{
tab->LastFrameVisible = -1;
tab_bar->SelectedTabId = tab_bar->NextSelectedTabId = 0;
}
}
else
{
// Actually select before expecting closure attempt (on an UnsavedDocument tab user is expect to e.g. show a popup)
if (tab_bar->VisibleTabId != tab->ID)
TabBarQueueFocus(tab_bar, tab);
}
}
static float ImGui::TabBarScrollClamp(ImGuiTabBar* tab_bar, float scrolling)
{
scrolling = ImMin(scrolling, tab_bar->WidthAllTabs - tab_bar->BarRect.GetWidth());
return ImMax(scrolling, 0.0f);
}
// Note: we may scroll to tab that are not selected! e.g. using keyboard arrow keys
static void ImGui::TabBarScrollToTab(ImGuiTabBar* tab_bar, ImGuiID tab_id, ImGuiTabBarSection* sections)
{
ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id);
if (tab == NULL)
return;
if (tab->Flags & ImGuiTabItemFlags_SectionMask_)
return;
ImGuiContext& g = *GImGui;
float margin = g.FontSize * 1.0f; // When to scroll to make Tab N+1 visible always make a bit of N visible to suggest more scrolling area (since we don't have a scrollbar)
int order = TabBarGetTabOrder(tab_bar, tab);
// Scrolling happens only in the central section (leading/trailing sections are not scrolling)
// FIXME: This is all confusing.
float scrollable_width = tab_bar->BarRect.GetWidth() - sections[0].Width - sections[2].Width - sections[1].Spacing;
// We make all tabs positions all relative Sections[0].Width to make code simpler
float tab_x1 = tab->Offset - sections[0].Width + (order > sections[0].TabCount - 1 ? -margin : 0.0f);
float tab_x2 = tab->Offset - sections[0].Width + tab->Width + (order + 1 < tab_bar->Tabs.Size - sections[2].TabCount ? margin : 1.0f);
tab_bar->ScrollingTargetDistToVisibility = 0.0f;
if (tab_bar->ScrollingTarget > tab_x1 || (tab_x2 - tab_x1 >= scrollable_width))
{
// Scroll to the left
tab_bar->ScrollingTargetDistToVisibility = ImMax(tab_bar->ScrollingAnim - tab_x2, 0.0f);
tab_bar->ScrollingTarget = tab_x1;
}
else if (tab_bar->ScrollingTarget < tab_x2 - scrollable_width)
{
// Scroll to the right
tab_bar->ScrollingTargetDistToVisibility = ImMax((tab_x1 - scrollable_width) - tab_bar->ScrollingAnim, 0.0f);
tab_bar->ScrollingTarget = tab_x2 - scrollable_width;
}
}
void ImGui::TabBarQueueFocus(ImGuiTabBar* tab_bar, ImGuiTabItem* tab)
{
tab_bar->NextSelectedTabId = tab->ID;
}
void ImGui::TabBarQueueReorder(ImGuiTabBar* tab_bar, ImGuiTabItem* tab, int offset)
{
IM_ASSERT(offset != 0);
IM_ASSERT(tab_bar->ReorderRequestTabId == 0);
tab_bar->ReorderRequestTabId = tab->ID;
tab_bar->ReorderRequestOffset = (ImS16)offset;
}
void ImGui::TabBarQueueReorderFromMousePos(ImGuiTabBar* tab_bar, ImGuiTabItem* src_tab, ImVec2 mouse_pos)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(tab_bar->ReorderRequestTabId == 0);
if ((tab_bar->Flags & ImGuiTabBarFlags_Reorderable) == 0)
return;
const bool is_central_section = (src_tab->Flags & ImGuiTabItemFlags_SectionMask_) == 0;
const float bar_offset = tab_bar->BarRect.Min.x - (is_central_section ? tab_bar->ScrollingTarget : 0);
// Count number of contiguous tabs we are crossing over
const int dir = (bar_offset + src_tab->Offset) > mouse_pos.x ? -1 : +1;
const int src_idx = tab_bar->Tabs.index_from_ptr(src_tab);
int dst_idx = src_idx;
for (int i = src_idx; i >= 0 && i < tab_bar->Tabs.Size; i += dir)
{
// Reordered tabs must share the same section
const ImGuiTabItem* dst_tab = &tab_bar->Tabs[i];
if (dst_tab->Flags & ImGuiTabItemFlags_NoReorder)
break;
if ((dst_tab->Flags & ImGuiTabItemFlags_SectionMask_) != (src_tab->Flags & ImGuiTabItemFlags_SectionMask_))
break;
dst_idx = i;
// Include spacing after tab, so when mouse cursor is between tabs we would not continue checking further tabs that are not hovered.
const float x1 = bar_offset + dst_tab->Offset - g.Style.ItemInnerSpacing.x;
const float x2 = bar_offset + dst_tab->Offset + dst_tab->Width + g.Style.ItemInnerSpacing.x;
//GetForegroundDrawList()->AddRect(ImVec2(x1, tab_bar->BarRect.Min.y), ImVec2(x2, tab_bar->BarRect.Max.y), IM_COL32(255, 0, 0, 255));
if ((dir < 0 && mouse_pos.x > x1) || (dir > 0 && mouse_pos.x < x2))
break;
}
if (dst_idx != src_idx)
TabBarQueueReorder(tab_bar, src_tab, dst_idx - src_idx);
}
bool ImGui::TabBarProcessReorder(ImGuiTabBar* tab_bar)
{
ImGuiTabItem* tab1 = TabBarFindTabByID(tab_bar, tab_bar->ReorderRequestTabId);
if (tab1 == NULL || (tab1->Flags & ImGuiTabItemFlags_NoReorder))
return false;
//IM_ASSERT(tab_bar->Flags & ImGuiTabBarFlags_Reorderable); // <- this may happen when using debug tools
int tab2_order = TabBarGetTabOrder(tab_bar, tab1) + tab_bar->ReorderRequestOffset;
if (tab2_order < 0 || tab2_order >= tab_bar->Tabs.Size)
return false;
// Reordered tabs must share the same section
// (Note: TabBarQueueReorderFromMousePos() also has a similar test but since we allow direct calls to TabBarQueueReorder() we do it here too)
ImGuiTabItem* tab2 = &tab_bar->Tabs[tab2_order];
if (tab2->Flags & ImGuiTabItemFlags_NoReorder)
return false;
if ((tab1->Flags & ImGuiTabItemFlags_SectionMask_) != (tab2->Flags & ImGuiTabItemFlags_SectionMask_))
return false;
ImGuiTabItem item_tmp = *tab1;
ImGuiTabItem* src_tab = (tab_bar->ReorderRequestOffset > 0) ? tab1 + 1 : tab2;
ImGuiTabItem* dst_tab = (tab_bar->ReorderRequestOffset > 0) ? tab1 : tab2 + 1;
const int move_count = (tab_bar->ReorderRequestOffset > 0) ? tab_bar->ReorderRequestOffset : -tab_bar->ReorderRequestOffset;
memmove(dst_tab, src_tab, move_count * sizeof(ImGuiTabItem));
*tab2 = item_tmp;
if (tab_bar->Flags & ImGuiTabBarFlags_SaveSettings)
MarkIniSettingsDirty();
return true;
}
static ImGuiTabItem* ImGui::TabBarScrollingButtons(ImGuiTabBar* tab_bar)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const ImVec2 arrow_button_size(g.FontSize - 2.0f, g.FontSize + g.Style.FramePadding.y * 2.0f);
const float scrolling_buttons_width = arrow_button_size.x * 2.0f;
const ImVec2 backup_cursor_pos = window->DC.CursorPos;
//window->DrawList->AddRect(ImVec2(tab_bar->BarRect.Max.x - scrolling_buttons_width, tab_bar->BarRect.Min.y), ImVec2(tab_bar->BarRect.Max.x, tab_bar->BarRect.Max.y), IM_COL32(255,0,0,255));
int select_dir = 0;
ImVec4 arrow_col = g.Style.Colors[ImGuiCol_Text];
arrow_col.w *= 0.5f;
PushStyleColor(ImGuiCol_Text, arrow_col);
PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
const float backup_repeat_delay = g.IO.KeyRepeatDelay;
const float backup_repeat_rate = g.IO.KeyRepeatRate;
g.IO.KeyRepeatDelay = 0.250f;
g.IO.KeyRepeatRate = 0.200f;
float x = ImMax(tab_bar->BarRect.Min.x, tab_bar->BarRect.Max.x - scrolling_buttons_width);
window->DC.CursorPos = ImVec2(x, tab_bar->BarRect.Min.y);
if (ArrowButtonEx("##<", ImGuiDir_Left, arrow_button_size, ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_Repeat))
select_dir = -1;
window->DC.CursorPos = ImVec2(x + arrow_button_size.x, tab_bar->BarRect.Min.y);
if (ArrowButtonEx("##>", ImGuiDir_Right, arrow_button_size, ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_Repeat))
select_dir = +1;
PopStyleColor(2);
g.IO.KeyRepeatRate = backup_repeat_rate;
g.IO.KeyRepeatDelay = backup_repeat_delay;
ImGuiTabItem* tab_to_scroll_to = NULL;
if (select_dir != 0)
if (ImGuiTabItem* tab_item = TabBarFindTabByID(tab_bar, tab_bar->SelectedTabId))
{
int selected_order = TabBarGetTabOrder(tab_bar, tab_item);
int target_order = selected_order + select_dir;
// Skip tab item buttons until another tab item is found or end is reached
while (tab_to_scroll_to == NULL)
{
// If we are at the end of the list, still scroll to make our tab visible
tab_to_scroll_to = &tab_bar->Tabs[(target_order >= 0 && target_order < tab_bar->Tabs.Size) ? target_order : selected_order];
// Cross through buttons
// (even if first/last item is a button, return it so we can update the scroll)
if (tab_to_scroll_to->Flags & ImGuiTabItemFlags_Button)
{
target_order += select_dir;
selected_order += select_dir;
tab_to_scroll_to = (target_order < 0 || target_order >= tab_bar->Tabs.Size) ? tab_to_scroll_to : NULL;
}
}
}
window->DC.CursorPos = backup_cursor_pos;
tab_bar->BarRect.Max.x -= scrolling_buttons_width + 1.0f;
return tab_to_scroll_to;
}
static ImGuiTabItem* ImGui::TabBarTabListPopupButton(ImGuiTabBar* tab_bar)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
// We use g.Style.FramePadding.y to match the square ArrowButton size
const float tab_list_popup_button_width = g.FontSize + g.Style.FramePadding.y;
const ImVec2 backup_cursor_pos = window->DC.CursorPos;
window->DC.CursorPos = ImVec2(tab_bar->BarRect.Min.x - g.Style.FramePadding.y, tab_bar->BarRect.Min.y);
tab_bar->BarRect.Min.x += tab_list_popup_button_width;
ImVec4 arrow_col = g.Style.Colors[ImGuiCol_Text];
arrow_col.w *= 0.5f;
PushStyleColor(ImGuiCol_Text, arrow_col);
PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
bool open = BeginCombo("##v", NULL, ImGuiComboFlags_NoPreview | ImGuiComboFlags_HeightLargest);
PopStyleColor(2);
ImGuiTabItem* tab_to_select = NULL;
if (open)
{
for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
{
ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
if (tab->Flags & ImGuiTabItemFlags_Button)
continue;
const char* tab_name = TabBarGetTabName(tab_bar, tab);
if (Selectable(tab_name, tab_bar->SelectedTabId == tab->ID))
tab_to_select = tab;
}
EndCombo();
}
window->DC.CursorPos = backup_cursor_pos;
return tab_to_select;
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: BeginTabItem, EndTabItem, etc.
//-------------------------------------------------------------------------
// - BeginTabItem()
// - EndTabItem()
// - TabItemButton()
// - TabItemEx() [Internal]
// - SetTabItemClosed()
// - TabItemCalcSize() [Internal]
// - TabItemBackground() [Internal]
// - TabItemLabelAndCloseButton() [Internal]
//-------------------------------------------------------------------------
bool ImGui::BeginTabItem(const char* label, bool* p_open, ImGuiTabItemFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
ImGuiTabBar* tab_bar = g.CurrentTabBar;
if (tab_bar == NULL)
{
IM_ASSERT_USER_ERROR(tab_bar, "Needs to be called between BeginTabBar() and EndTabBar()!");
return false;
}
IM_ASSERT(!(flags & ImGuiTabItemFlags_Button)); // BeginTabItem() Can't be used with button flags, use TabItemButton() instead!
bool ret = TabItemEx(tab_bar, label, p_open, flags, NULL);
if (ret && !(flags & ImGuiTabItemFlags_NoPushId))
{
ImGuiTabItem* tab = &tab_bar->Tabs[tab_bar->LastTabItemIdx];
PushOverrideID(tab->ID); // We already hashed 'label' so push into the ID stack directly instead of doing another hash through PushID(label)
}
return ret;
}
void ImGui::EndTabItem()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return;
ImGuiTabBar* tab_bar = g.CurrentTabBar;
if (tab_bar == NULL)
{
IM_ASSERT_USER_ERROR(tab_bar != NULL, "Needs to be called between BeginTabBar() and EndTabBar()!");
return;
}
IM_ASSERT(tab_bar->LastTabItemIdx >= 0);
ImGuiTabItem* tab = &tab_bar->Tabs[tab_bar->LastTabItemIdx];
if (!(tab->Flags & ImGuiTabItemFlags_NoPushId))
PopID();
}
bool ImGui::TabItemButton(const char* label, ImGuiTabItemFlags flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
ImGuiTabBar* tab_bar = g.CurrentTabBar;
if (tab_bar == NULL)
{
IM_ASSERT_USER_ERROR(tab_bar != NULL, "Needs to be called between BeginTabBar() and EndTabBar()!");
return false;
}
return TabItemEx(tab_bar, label, NULL, flags | ImGuiTabItemFlags_Button | ImGuiTabItemFlags_NoReorder, NULL);
}
bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open, ImGuiTabItemFlags flags, ImGuiWindow* docked_window)
{
// Layout whole tab bar if not already done
ImGuiContext& g = *GImGui;
if (tab_bar->WantLayout)
{
ImGuiNextItemData backup_next_item_data = g.NextItemData;
TabBarLayout(tab_bar);
g.NextItemData = backup_next_item_data;
}
ImGuiWindow* window = g.CurrentWindow;
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
const ImGuiID id = TabBarCalcTabID(tab_bar, label, docked_window);
// If the user called us with *p_open == false, we early out and don't render.
// We make a call to ItemAdd() so that attempts to use a contextual popup menu with an implicit ID won't use an older ID.
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
if (p_open && !*p_open)
{
ItemAdd(ImRect(), id, NULL, ImGuiItemFlags_NoNav);
return false;
}
IM_ASSERT(!p_open || !(flags & ImGuiTabItemFlags_Button));
IM_ASSERT((flags & (ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_Trailing)) != (ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_Trailing)); // Can't use both Leading and Trailing
// Store into ImGuiTabItemFlags_NoCloseButton, also honor ImGuiTabItemFlags_NoCloseButton passed by user (although not documented)
if (flags & ImGuiTabItemFlags_NoCloseButton)
p_open = NULL;
else if (p_open == NULL)
flags |= ImGuiTabItemFlags_NoCloseButton;
// Acquire tab data
ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, id);
bool tab_is_new = false;
if (tab == NULL)
{
tab_bar->Tabs.push_back(ImGuiTabItem());
tab = &tab_bar->Tabs.back();
tab->ID = id;
tab_bar->TabsAddedNew = tab_is_new = true;
}
tab_bar->LastTabItemIdx = (ImS16)tab_bar->Tabs.index_from_ptr(tab);
// Calculate tab contents size
ImVec2 size = TabItemCalcSize(label, (p_open != NULL) || (flags & ImGuiTabItemFlags_UnsavedDocument));
tab->RequestedWidth = -1.0f;
if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasWidth)
size.x = tab->RequestedWidth = g.NextItemData.Width;
if (tab_is_new)
tab->Width = ImMax(1.0f, size.x);
tab->ContentWidth = size.x;
tab->BeginOrder = tab_bar->TabsActiveCount++;
const bool tab_bar_appearing = (tab_bar->PrevFrameVisible + 1 < g.FrameCount);
const bool tab_bar_focused = (tab_bar->Flags & ImGuiTabBarFlags_IsFocused) != 0;
const bool tab_appearing = (tab->LastFrameVisible + 1 < g.FrameCount);
const bool tab_just_unsaved = (flags & ImGuiTabItemFlags_UnsavedDocument) && !(tab->Flags & ImGuiTabItemFlags_UnsavedDocument);
const bool is_tab_button = (flags & ImGuiTabItemFlags_Button) != 0;
tab->LastFrameVisible = g.FrameCount;
tab->Flags = flags;
// Append name _WITH_ the zero-terminator
if (docked_window != NULL)
{
IM_ASSERT(docked_window == NULL); // master branch only
}
else
{
tab->NameOffset = (ImS32)tab_bar->TabsNames.size();
tab_bar->TabsNames.append(label, label + strlen(label) + 1);
}
// Update selected tab
if (!is_tab_button)
{
if (tab_appearing && (tab_bar->Flags & ImGuiTabBarFlags_AutoSelectNewTabs) && tab_bar->NextSelectedTabId == 0)
if (!tab_bar_appearing || tab_bar->SelectedTabId == 0)
TabBarQueueFocus(tab_bar, tab); // New tabs gets activated
if ((flags & ImGuiTabItemFlags_SetSelected) && (tab_bar->SelectedTabId != id)) // _SetSelected can only be passed on explicit tab bar
TabBarQueueFocus(tab_bar, tab);
}
// Lock visibility
// (Note: tab_contents_visible != tab_selected... because CTRL+TAB operations may preview some tabs without selecting them!)
bool tab_contents_visible = (tab_bar->VisibleTabId == id);
if (tab_contents_visible)
tab_bar->VisibleTabWasSubmitted = true;
// On the very first frame of a tab bar we let first tab contents be visible to minimize appearing glitches
if (!tab_contents_visible && tab_bar->SelectedTabId == 0 && tab_bar_appearing)
if (tab_bar->Tabs.Size == 1 && !(tab_bar->Flags & ImGuiTabBarFlags_AutoSelectNewTabs))
tab_contents_visible = true;
// Note that tab_is_new is not necessarily the same as tab_appearing! When a tab bar stops being submitted
// and then gets submitted again, the tabs will have 'tab_appearing=true' but 'tab_is_new=false'.
if (tab_appearing && (!tab_bar_appearing || tab_is_new))
{
ItemAdd(ImRect(), id, NULL, ImGuiItemFlags_NoNav);
if (is_tab_button)
return false;
return tab_contents_visible;
}
if (tab_bar->SelectedTabId == id)
tab->LastFrameSelected = g.FrameCount;
// Backup current layout position
const ImVec2 backup_main_cursor_pos = window->DC.CursorPos;
// Layout
const bool is_central_section = (tab->Flags & ImGuiTabItemFlags_SectionMask_) == 0;
size.x = tab->Width;
if (is_central_section)
window->DC.CursorPos = tab_bar->BarRect.Min + ImVec2(IM_FLOOR(tab->Offset - tab_bar->ScrollingAnim), 0.0f);
else
window->DC.CursorPos = tab_bar->BarRect.Min + ImVec2(tab->Offset, 0.0f);
ImVec2 pos = window->DC.CursorPos;
ImRect bb(pos, pos + size);
// We don't have CPU clipping primitives to clip the CloseButton (until it becomes a texture), so need to add an extra draw call (temporary in the case of vertical animation)
const bool want_clip_rect = is_central_section && (bb.Min.x < tab_bar->ScrollingRectMinX || bb.Max.x > tab_bar->ScrollingRectMaxX);
if (want_clip_rect)
PushClipRect(ImVec2(ImMax(bb.Min.x, tab_bar->ScrollingRectMinX), bb.Min.y - 1), ImVec2(tab_bar->ScrollingRectMaxX, bb.Max.y), true);
ImVec2 backup_cursor_max_pos = window->DC.CursorMaxPos;
ItemSize(bb.GetSize(), style.FramePadding.y);
window->DC.CursorMaxPos = backup_cursor_max_pos;
if (!ItemAdd(bb, id))
{
if (want_clip_rect)
PopClipRect();
window->DC.CursorPos = backup_main_cursor_pos;
return tab_contents_visible;
}
// Click to Select a tab
ImGuiButtonFlags button_flags = ((is_tab_button ? ImGuiButtonFlags_PressedOnClickRelease : ImGuiButtonFlags_PressedOnClick) | ImGuiButtonFlags_AllowItemOverlap);
if (g.DragDropActive)
button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
bool hovered, held;
bool pressed = ButtonBehavior(bb, id, &hovered, &held, button_flags);
if (pressed && !is_tab_button)
TabBarQueueFocus(tab_bar, tab);
// Allow the close button to overlap unless we are dragging (in which case we don't want any overlapping tabs to be hovered)
if (g.ActiveId != id)
SetItemAllowOverlap();
// Drag and drop: re-order tabs
if (held && !tab_appearing && IsMouseDragging(0))
{
if (!g.DragDropActive && (tab_bar->Flags & ImGuiTabBarFlags_Reorderable))
{
// While moving a tab it will jump on the other side of the mouse, so we also test for MouseDelta.x
if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < bb.Min.x)
{
TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos);
}
else if (g.IO.MouseDelta.x > 0.0f && g.IO.MousePos.x > bb.Max.x)
{
TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos);
}
}
}
#if 0
if (hovered && g.HoveredIdNotActiveTimer > TOOLTIP_DELAY && bb.GetWidth() < tab->ContentWidth)
{
// Enlarge tab display when hovering
bb.Max.x = bb.Min.x + IM_FLOOR(ImLerp(bb.GetWidth(), tab->ContentWidth, ImSaturate((g.HoveredIdNotActiveTimer - 0.40f) * 6.0f)));
display_draw_list = GetForegroundDrawList(window);
TabItemBackground(display_draw_list, bb, flags, GetColorU32(ImGuiCol_TitleBgActive));
}
#endif
// Render tab shape
ImDrawList* display_draw_list = window->DrawList;
const ImU32 tab_col = GetColorU32((held || hovered) ? ImGuiCol_TabHovered : tab_contents_visible ? (tab_bar_focused ? ImGuiCol_TabActive : ImGuiCol_TabUnfocusedActive) : (tab_bar_focused ? ImGuiCol_Tab : ImGuiCol_TabUnfocused));
TabItemBackground(display_draw_list, bb, flags, tab_col);
RenderNavHighlight(bb, id);
// Select with right mouse button. This is so the common idiom for context menu automatically highlight the current widget.
const bool hovered_unblocked = IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup);
if (hovered_unblocked && (IsMouseClicked(1) || IsMouseReleased(1)) && !is_tab_button)
TabBarQueueFocus(tab_bar, tab);
if (tab_bar->Flags & ImGuiTabBarFlags_NoCloseWithMiddleMouseButton)
flags |= ImGuiTabItemFlags_NoCloseWithMiddleMouseButton;
// Render tab label, process close button
const ImGuiID close_button_id = p_open ? GetIDWithSeed("#CLOSE", NULL, id) : 0;
bool just_closed;
bool text_clipped;
TabItemLabelAndCloseButton(display_draw_list, bb, tab_just_unsaved ? (flags & ~ImGuiTabItemFlags_UnsavedDocument) : flags, tab_bar->FramePadding, label, id, close_button_id, tab_contents_visible, &just_closed, &text_clipped);
if (just_closed && p_open != NULL)
{
*p_open = false;
TabBarCloseTab(tab_bar, tab);
}
// Restore main window position so user can draw there
if (want_clip_rect)
PopClipRect();
window->DC.CursorPos = backup_main_cursor_pos;
// Tooltip
// (Won't work over the close button because ItemOverlap systems messes up with HoveredIdTimer-> seems ok)
// (We test IsItemHovered() to discard e.g. when another item is active or drag and drop over the tab bar, which g.HoveredId ignores)
// FIXME: This is a mess.
// FIXME: We may want disabled tab to still display the tooltip?
if (text_clipped && g.HoveredId == id && !held)
if (!(tab_bar->Flags & ImGuiTabBarFlags_NoTooltip) && !(tab->Flags & ImGuiTabItemFlags_NoTooltip))
if (IsItemHovered(ImGuiHoveredFlags_DelayNormal))
SetTooltip("%.*s", (int)(FindRenderedTextEnd(label) - label), label);
IM_ASSERT(!is_tab_button || !(tab_bar->SelectedTabId == tab->ID && is_tab_button)); // TabItemButton should not be selected
if (is_tab_button)
return pressed;
return tab_contents_visible;
}
// [Public] This is call is 100% optional but it allows to remove some one-frame glitches when a tab has been unexpectedly removed.
// To use it to need to call the function SetTabItemClosed() between BeginTabBar() and EndTabBar().
// Tabs closed by the close button will automatically be flagged to avoid this issue.
void ImGui::SetTabItemClosed(const char* label)
{
ImGuiContext& g = *GImGui;
bool is_within_manual_tab_bar = g.CurrentTabBar && !(g.CurrentTabBar->Flags & ImGuiTabBarFlags_DockNode);
if (is_within_manual_tab_bar)
{
ImGuiTabBar* tab_bar = g.CurrentTabBar;
ImGuiID tab_id = TabBarCalcTabID(tab_bar, label, NULL);
if (ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id))
tab->WantClose = true; // Will be processed by next call to TabBarLayout()
}
}
ImVec2 ImGui::TabItemCalcSize(const char* label, bool has_close_button_or_unsaved_marker)
{
ImGuiContext& g = *GImGui;
ImVec2 label_size = CalcTextSize(label, NULL, true);
ImVec2 size = ImVec2(label_size.x + g.Style.FramePadding.x, label_size.y + g.Style.FramePadding.y * 2.0f);
if (has_close_button_or_unsaved_marker)
size.x += g.Style.FramePadding.x + (g.Style.ItemInnerSpacing.x + g.FontSize); // We use Y intentionally to fit the close button circle.
else
size.x += g.Style.FramePadding.x + 1.0f;
return ImVec2(ImMin(size.x, TabBarCalcMaxTabWidth()), size.y);
}
ImVec2 ImGui::TabItemCalcSize(ImGuiWindow*)
{
IM_ASSERT(0); // This function exists to facilitate merge with 'docking' branch.
return ImVec2(0.0f, 0.0f);
}
void ImGui::TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImU32 col)
{
// While rendering tabs, we trim 1 pixel off the top of our bounding box so they can fit within a regular frame height while looking "detached" from it.
ImGuiContext& g = *GImGui;
const float width = bb.GetWidth();
IM_UNUSED(flags);
IM_ASSERT(width > 0.0f);
const float rounding = ImMax(0.0f, ImMin((flags & ImGuiTabItemFlags_Button) ? g.Style.FrameRounding : g.Style.TabRounding, width * 0.5f - 1.0f));
const float y1 = bb.Min.y + 1.0f;
const float y2 = bb.Max.y - 1.0f;
draw_list->PathLineTo(ImVec2(bb.Min.x, y2));
draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding, y1 + rounding), rounding, 6, 9);
draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding, y1 + rounding), rounding, 9, 12);
draw_list->PathLineTo(ImVec2(bb.Max.x, y2));
draw_list->PathFillConvex(col);
if (g.Style.TabBorderSize > 0.0f)
{
draw_list->PathLineTo(ImVec2(bb.Min.x + 0.5f, y2));
draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding + 0.5f, y1 + rounding + 0.5f), rounding, 6, 9);
draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding - 0.5f, y1 + rounding + 0.5f), rounding, 9, 12);
draw_list->PathLineTo(ImVec2(bb.Max.x - 0.5f, y2));
draw_list->PathStroke(GetColorU32(ImGuiCol_Border), 0, g.Style.TabBorderSize);
}
}
// Render text label (with custom clipping) + Unsaved Document marker + Close Button logic
// We tend to lock style.FramePadding for a given tab-bar, hence the 'frame_padding' parameter.
void ImGui::TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImVec2 frame_padding, const char* label, ImGuiID tab_id, ImGuiID close_button_id, bool is_contents_visible, bool* out_just_closed, bool* out_text_clipped)
{
ImGuiContext& g = *GImGui;
ImVec2 label_size = CalcTextSize(label, NULL, true);
if (out_just_closed)
*out_just_closed = false;
if (out_text_clipped)
*out_text_clipped = false;
if (bb.GetWidth() <= 1.0f)
return;
// In Style V2 we'll have full override of all colors per state (e.g. focused, selected)
// But right now if you want to alter text color of tabs this is what you need to do.
#if 0
const float backup_alpha = g.Style.Alpha;
if (!is_contents_visible)
g.Style.Alpha *= 0.7f;
#endif
// Render text label (with clipping + alpha gradient) + unsaved marker
ImRect text_pixel_clip_bb(bb.Min.x + frame_padding.x, bb.Min.y + frame_padding.y, bb.Max.x - frame_padding.x, bb.Max.y);
ImRect text_ellipsis_clip_bb = text_pixel_clip_bb;
// Return clipped state ignoring the close button
if (out_text_clipped)
{
*out_text_clipped = (text_ellipsis_clip_bb.Min.x + label_size.x) > text_pixel_clip_bb.Max.x;
//draw_list->AddCircle(text_ellipsis_clip_bb.Min, 3.0f, *out_text_clipped ? IM_COL32(255, 0, 0, 255) : IM_COL32(0, 255, 0, 255));
}
const float button_sz = g.FontSize;
const ImVec2 button_pos(ImMax(bb.Min.x, bb.Max.x - frame_padding.x * 2.0f - button_sz), bb.Min.y);
// Close Button & Unsaved Marker
// We are relying on a subtle and confusing distinction between 'hovered' and 'g.HoveredId' which happens because we are using ImGuiButtonFlags_AllowOverlapMode + SetItemAllowOverlap()
// 'hovered' will be true when hovering the Tab but NOT when hovering the close button
// 'g.HoveredId==id' will be true when hovering the Tab including when hovering the close button
// 'g.ActiveId==close_button_id' will be true when we are holding on the close button, in which case both hovered booleans are false
bool close_button_pressed = false;
bool close_button_visible = false;
if (close_button_id != 0)
if (is_contents_visible || bb.GetWidth() >= ImMax(button_sz, g.Style.TabMinWidthForCloseButton))
if (g.HoveredId == tab_id || g.HoveredId == close_button_id || g.ActiveId == tab_id || g.ActiveId == close_button_id)
close_button_visible = true;
bool unsaved_marker_visible = (flags & ImGuiTabItemFlags_UnsavedDocument) != 0 && (button_pos.x + button_sz <= bb.Max.x);
if (close_button_visible)
{
ImGuiLastItemData last_item_backup = g.LastItemData;
PushStyleVar(ImGuiStyleVar_FramePadding, frame_padding);
if (CloseButton(close_button_id, button_pos))
close_button_pressed = true;
PopStyleVar();
g.LastItemData = last_item_backup;
// Close with middle mouse button
if (!(flags & ImGuiTabItemFlags_NoCloseWithMiddleMouseButton) && IsMouseClicked(2))
close_button_pressed = true;
}
else if (unsaved_marker_visible)
{
const ImRect bullet_bb(button_pos, button_pos + ImVec2(button_sz, button_sz) + g.Style.FramePadding * 2.0f);
RenderBullet(draw_list, bullet_bb.GetCenter(), GetColorU32(ImGuiCol_Text));
}
// This is all rather complicated
// (the main idea is that because the close button only appears on hover, we don't want it to alter the ellipsis position)
// FIXME: if FramePadding is noticeably large, ellipsis_max_x will be wrong here (e.g. #3497), maybe for consistency that parameter of RenderTextEllipsis() shouldn't exist..
float ellipsis_max_x = close_button_visible ? text_pixel_clip_bb.Max.x : bb.Max.x - 1.0f;
if (close_button_visible || unsaved_marker_visible)
{
text_pixel_clip_bb.Max.x -= close_button_visible ? (button_sz) : (button_sz * 0.80f);
text_ellipsis_clip_bb.Max.x -= unsaved_marker_visible ? (button_sz * 0.80f) : 0.0f;
ellipsis_max_x = text_pixel_clip_bb.Max.x;
}
RenderTextEllipsis(draw_list, text_ellipsis_clip_bb.Min, text_ellipsis_clip_bb.Max, text_pixel_clip_bb.Max.x, ellipsis_max_x, label, NULL, &label_size);
#if 0
if (!is_contents_visible)
g.Style.Alpha = backup_alpha;
#endif
if (out_just_closed)
*out_just_closed = close_button_pressed;
}
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui.h | // dear imgui, v1.89.4
// (headers)
// Help:
// - Read FAQ at http://dearimgui.org/faq
// - Newcomers, read 'Programmer guide' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
// Read imgui.cpp for details, links and comments.
// Resources:
// - FAQ http://dearimgui.org/faq
// - Homepage & latest https://github.com/ocornut/imgui
// - Releases & changelog https://github.com/ocornut/imgui/releases
// - Gallery https://github.com/ocornut/imgui/issues/5886 (please post your screenshots/video there!)
// - Wiki https://github.com/ocornut/imgui/wiki (lots of good stuff there)
// - Glossary https://github.com/ocornut/imgui/wiki/Glossary
// - Issues & support https://github.com/ocornut/imgui/issues
// Getting Started?
// - For first-time users having issues compiling/linking/running or issues loading fonts:
// please post in https://github.com/ocornut/imgui/discussions if you cannot find a solution in resources above.
// Library Version
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM > 12345')
#define IMGUI_VERSION "1.89.4"
#define IMGUI_VERSION_NUM 18940
#define IMGUI_HAS_TABLE
/*
Index of this file:
// [SECTION] Header mess
// [SECTION] Forward declarations and basic types
// [SECTION] Dear ImGui end-user API functions
// [SECTION] Flags & Enumerations
// [SECTION] Helpers: Memory allocations macros, ImVector<>
// [SECTION] ImGuiStyle
// [SECTION] ImGuiIO
// [SECTION] Misc data structures (ImGuiInputTextCallbackData, ImGuiSizeCallbackData, ImGuiPayload, ImGuiTableSortSpecs, ImGuiTableColumnSortSpecs)
// [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, Math Operators, ImColor)
// [SECTION] Drawing API (ImDrawCallback, ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawFlags, ImDrawListFlags, ImDrawList, ImDrawData)
// [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontGlyphRangesBuilder, ImFontAtlasFlags, ImFontAtlas, ImFont)
// [SECTION] Viewports (ImGuiViewportFlags, ImGuiViewport)
// [SECTION] Platform Dependent Interfaces (ImGuiPlatformImeData)
// [SECTION] Obsolete functions and types
*/
#pragma once
// Configuration file with compile-time options
// (edit imconfig.h or '#define IMGUI_USER_CONFIG "myfilename.h" from your build system')
#ifdef IMGUI_USER_CONFIG
#include IMGUI_USER_CONFIG
#endif
#include "imconfig.h"
#ifndef IMGUI_DISABLE
//-----------------------------------------------------------------------------
// [SECTION] Header mess
//-----------------------------------------------------------------------------
// Includes
#include <float.h> // FLT_MIN, FLT_MAX
#include <stdarg.h> // va_list, va_start, va_end
#include <stddef.h> // ptrdiff_t, NULL
#include <string.h> // memset, memmove, memcpy, strlen, strchr, strcpy, strcmp
// Define attributes of all API symbols declarations (e.g. for DLL under Windows)
// IMGUI_API is used for core imgui functions, IMGUI_IMPL_API is used for the default backends files (imgui_impl_xxx.h)
// Using dear imgui via a shared library is not recommended, because we don't guarantee backward nor forward ABI compatibility (also function call overhead, as dear imgui is a call-heavy API)
#ifndef IMGUI_API
#define IMGUI_API
#endif
#ifndef IMGUI_IMPL_API
#define IMGUI_IMPL_API IMGUI_API
#endif
// Helper Macros
#ifndef IM_ASSERT
#include <assert.h>
#define IM_ASSERT(_EXPR) assert(_EXPR) // You can override the default assert handler by editing imconfig.h
#endif
#define IM_ARRAYSIZE(_ARR) ((int)(sizeof(_ARR) / sizeof(*(_ARR)))) // Size of a static C-style array. Don't use on pointers!
#define IM_UNUSED(_VAR) ((void)(_VAR)) // Used to silence "unused variable warnings". Often useful as asserts may be stripped out from final builds.
#define IM_OFFSETOF(_TYPE,_MEMBER) offsetof(_TYPE, _MEMBER) // Offset of _MEMBER within _TYPE. Standardized as offsetof() in C++11
#define IMGUI_CHECKVERSION() ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
// Helper Macros - IM_FMTARGS, IM_FMTLIST: Apply printf-style warnings to our formatting functions.
#if !defined(IMGUI_USE_STB_SPRINTF) && defined(__MINGW32__) && !defined(__clang__)
#define IM_FMTARGS(FMT) __attribute__((format(gnu_printf, FMT, FMT+1)))
#define IM_FMTLIST(FMT) __attribute__((format(gnu_printf, FMT, 0)))
#elif !defined(IMGUI_USE_STB_SPRINTF) && (defined(__clang__) || defined(__GNUC__))
#define IM_FMTARGS(FMT) __attribute__((format(printf, FMT, FMT+1)))
#define IM_FMTLIST(FMT) __attribute__((format(printf, FMT, 0)))
#else
#define IM_FMTARGS(FMT)
#define IM_FMTLIST(FMT)
#endif
// Disable some of MSVC most aggressive Debug runtime checks in function header/footer (used in some simple/low-level functions)
#if defined(_MSC_VER) && !defined(__clang__) && !defined(__INTEL_COMPILER) && !defined(IMGUI_DEBUG_PARANOID)
#define IM_MSVC_RUNTIME_CHECKS_OFF __pragma(runtime_checks("",off)) __pragma(check_stack(off)) __pragma(strict_gs_check(push,off))
#define IM_MSVC_RUNTIME_CHECKS_RESTORE __pragma(runtime_checks("",restore)) __pragma(check_stack()) __pragma(strict_gs_check(pop))
#else
#define IM_MSVC_RUNTIME_CHECKS_OFF
#define IM_MSVC_RUNTIME_CHECKS_RESTORE
#endif
// Warnings
#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable: 26495) // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
#endif
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wold-style-cast"
#if __has_warning("-Wzero-as-null-pointer-constant")
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
#endif
#elif defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif
//-----------------------------------------------------------------------------
// [SECTION] Forward declarations and basic types
//-----------------------------------------------------------------------------
// Forward declarations
struct ImDrawChannel; // Temporary storage to output draw commands out of order, used by ImDrawListSplitter and ImDrawList::ChannelsSplit()
struct ImDrawCmd; // A single draw command within a parent ImDrawList (generally maps to 1 GPU draw call, unless it is a callback)
struct ImDrawData; // All draw command lists required to render the frame + pos/size coordinates to use for the projection matrix.
struct ImDrawList; // A single draw command list (generally one per window, conceptually you may see this as a dynamic "mesh" builder)
struct ImDrawListSharedData; // Data shared among multiple draw lists (typically owned by parent ImGui context, but you may create one yourself)
struct ImDrawListSplitter; // Helper to split a draw list into different layers which can be drawn into out of order, then flattened back.
struct ImDrawVert; // A single vertex (pos + uv + col = 20 bytes by default. Override layout with IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT)
struct ImFont; // Runtime data for a single font within a parent ImFontAtlas
struct ImFontAtlas; // Runtime data for multiple fonts, bake multiple fonts into a single texture, TTF/OTF font loader
struct ImFontBuilderIO; // Opaque interface to a font builder (stb_truetype or FreeType).
struct ImFontConfig; // Configuration data when adding a font or merging fonts
struct ImFontGlyph; // A single font glyph (code point + coordinates within in ImFontAtlas + offset)
struct ImFontGlyphRangesBuilder; // Helper to build glyph ranges from text/string data
struct ImColor; // Helper functions to create a color that can be converted to either u32 or float4 (*OBSOLETE* please avoid using)
struct ImGuiContext; // Dear ImGui context (opaque structure, unless including imgui_internal.h)
struct ImGuiIO; // Main configuration and I/O between your application and ImGui
struct ImGuiInputTextCallbackData; // Shared state of InputText() when using custom ImGuiInputTextCallback (rare/advanced use)
struct ImGuiKeyData; // Storage for ImGuiIO and IsKeyDown(), IsKeyPressed() etc functions.
struct ImGuiListClipper; // Helper to manually clip large list of items
struct ImGuiOnceUponAFrame; // Helper for running a block of code not more than once a frame
struct ImGuiPayload; // User data payload for drag and drop operations
struct ImGuiPlatformImeData; // Platform IME data for io.SetPlatformImeDataFn() function.
struct ImGuiSizeCallbackData; // Callback data when using SetNextWindowSizeConstraints() (rare/advanced use)
struct ImGuiStorage; // Helper for key->value storage
struct ImGuiStyle; // Runtime data for styling/colors
struct ImGuiTableSortSpecs; // Sorting specifications for a table (often handling sort specs for a single column, occasionally more)
struct ImGuiTableColumnSortSpecs; // Sorting specification for one column of a table
struct ImGuiTextBuffer; // Helper to hold and append into a text buffer (~string builder)
struct ImGuiTextFilter; // Helper to parse and apply text filters (e.g. "aaaaa[,bbbbb][,ccccc]")
struct ImGuiViewport; // A Platform Window (always only one in 'master' branch), in the future may represent Platform Monitor
// Enumerations
// - We don't use strongly typed enums much because they add constraints (can't extend in private code, can't store typed in bit fields, extra casting on iteration)
// - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
// In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
enum ImGuiKey : int; // -> enum ImGuiKey // Enum: A key identifier (ImGuiKey_XXX or ImGuiMod_XXX value)
typedef int ImGuiCol; // -> enum ImGuiCol_ // Enum: A color identifier for styling
typedef int ImGuiCond; // -> enum ImGuiCond_ // Enum: A condition for many Set*() functions
typedef int ImGuiDataType; // -> enum ImGuiDataType_ // Enum: A primary data type
typedef int ImGuiDir; // -> enum ImGuiDir_ // Enum: A cardinal direction
typedef int ImGuiMouseButton; // -> enum ImGuiMouseButton_ // Enum: A mouse button identifier (0=left, 1=right, 2=middle)
typedef int ImGuiMouseCursor; // -> enum ImGuiMouseCursor_ // Enum: A mouse cursor shape
typedef int ImGuiSortDirection; // -> enum ImGuiSortDirection_ // Enum: A sorting direction (ascending or descending)
typedef int ImGuiStyleVar; // -> enum ImGuiStyleVar_ // Enum: A variable identifier for styling
typedef int ImGuiTableBgTarget; // -> enum ImGuiTableBgTarget_ // Enum: A color target for TableSetBgColor()
// Flags (declared as int for compatibility with old C++, to allow using as flags without overhead, and to not pollute the top of this file)
// - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
// In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
typedef int ImDrawFlags; // -> enum ImDrawFlags_ // Flags: for ImDrawList functions
typedef int ImDrawListFlags; // -> enum ImDrawListFlags_ // Flags: for ImDrawList instance
typedef int ImFontAtlasFlags; // -> enum ImFontAtlasFlags_ // Flags: for ImFontAtlas build
typedef int ImGuiBackendFlags; // -> enum ImGuiBackendFlags_ // Flags: for io.BackendFlags
typedef int ImGuiButtonFlags; // -> enum ImGuiButtonFlags_ // Flags: for InvisibleButton()
typedef int ImGuiColorEditFlags; // -> enum ImGuiColorEditFlags_ // Flags: for ColorEdit4(), ColorPicker4() etc.
typedef int ImGuiConfigFlags; // -> enum ImGuiConfigFlags_ // Flags: for io.ConfigFlags
typedef int ImGuiComboFlags; // -> enum ImGuiComboFlags_ // Flags: for BeginCombo()
typedef int ImGuiDragDropFlags; // -> enum ImGuiDragDropFlags_ // Flags: for BeginDragDropSource(), AcceptDragDropPayload()
typedef int ImGuiFocusedFlags; // -> enum ImGuiFocusedFlags_ // Flags: for IsWindowFocused()
typedef int ImGuiHoveredFlags; // -> enum ImGuiHoveredFlags_ // Flags: for IsItemHovered(), IsWindowHovered() etc.
typedef int ImGuiInputTextFlags; // -> enum ImGuiInputTextFlags_ // Flags: for InputText(), InputTextMultiline()
typedef int ImGuiKeyChord; // -> ImGuiKey | ImGuiMod_XXX // Flags: for storage only for now: an ImGuiKey optionally OR-ed with one or more ImGuiMod_XXX values.
typedef int ImGuiPopupFlags; // -> enum ImGuiPopupFlags_ // Flags: for OpenPopup*(), BeginPopupContext*(), IsPopupOpen()
typedef int ImGuiSelectableFlags; // -> enum ImGuiSelectableFlags_ // Flags: for Selectable()
typedef int ImGuiSliderFlags; // -> enum ImGuiSliderFlags_ // Flags: for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
typedef int ImGuiTabBarFlags; // -> enum ImGuiTabBarFlags_ // Flags: for BeginTabBar()
typedef int ImGuiTabItemFlags; // -> enum ImGuiTabItemFlags_ // Flags: for BeginTabItem()
typedef int ImGuiTableFlags; // -> enum ImGuiTableFlags_ // Flags: For BeginTable()
typedef int ImGuiTableColumnFlags; // -> enum ImGuiTableColumnFlags_// Flags: For TableSetupColumn()
typedef int ImGuiTableRowFlags; // -> enum ImGuiTableRowFlags_ // Flags: For TableNextRow()
typedef int ImGuiTreeNodeFlags; // -> enum ImGuiTreeNodeFlags_ // Flags: for TreeNode(), TreeNodeEx(), CollapsingHeader()
typedef int ImGuiViewportFlags; // -> enum ImGuiViewportFlags_ // Flags: for ImGuiViewport
typedef int ImGuiWindowFlags; // -> enum ImGuiWindowFlags_ // Flags: for Begin(), BeginChild()
// ImTexture: user data for renderer backend to identify a texture [Compile-time configurable type]
// - To use something else than an opaque void* pointer: override with e.g. '#define ImTextureID MyTextureType*' in your imconfig.h file.
// - This can be whatever to you want it to be! read the FAQ about ImTextureID for details.
#ifndef ImTextureID
typedef void* ImTextureID; // Default: store a pointer or an integer fitting in a pointer (most renderer backends are ok with that)
#endif
// ImDrawIdx: vertex index. [Compile-time configurable type]
// - To use 16-bit indices + allow large meshes: backend need to set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset' and handle ImDrawCmd::VtxOffset (recommended).
// - To use 32-bit indices: override with '#define ImDrawIdx unsigned int' in your imconfig.h file.
#ifndef ImDrawIdx
typedef unsigned short ImDrawIdx; // Default: 16-bit (for maximum compatibility with renderer backends)
#endif
// Scalar data types
typedef unsigned int ImGuiID;// A unique ID used by widgets (typically the result of hashing a stack of string)
typedef signed char ImS8; // 8-bit signed integer
typedef unsigned char ImU8; // 8-bit unsigned integer
typedef signed short ImS16; // 16-bit signed integer
typedef unsigned short ImU16; // 16-bit unsigned integer
typedef signed int ImS32; // 32-bit signed integer == int
typedef unsigned int ImU32; // 32-bit unsigned integer (often used to store packed colors)
typedef signed long long ImS64; // 64-bit signed integer
typedef unsigned long long ImU64; // 64-bit unsigned integer
// Character types
// (we generally use UTF-8 encoded string in the API. This is storage specifically for a decoded character used for keyboard input and display)
typedef unsigned short ImWchar16; // A single decoded U16 character/code point. We encode them as multi bytes UTF-8 when used in strings.
typedef unsigned int ImWchar32; // A single decoded U32 character/code point. We encode them as multi bytes UTF-8 when used in strings.
#ifdef IMGUI_USE_WCHAR32 // ImWchar [configurable type: override in imconfig.h with '#define IMGUI_USE_WCHAR32' to support Unicode planes 1-16]
typedef ImWchar32 ImWchar;
#else
typedef ImWchar16 ImWchar;
#endif
// Callback and functions types
typedef int (*ImGuiInputTextCallback)(ImGuiInputTextCallbackData* data); // Callback function for ImGui::InputText()
typedef void (*ImGuiSizeCallback)(ImGuiSizeCallbackData* data); // Callback function for ImGui::SetNextWindowSizeConstraints()
typedef void* (*ImGuiMemAllocFunc)(size_t sz, void* user_data); // Function signature for ImGui::SetAllocatorFunctions()
typedef void (*ImGuiMemFreeFunc)(void* ptr, void* user_data); // Function signature for ImGui::SetAllocatorFunctions()
// ImVec2: 2D vector used to store positions, sizes etc. [Compile-time configurable type]
// This is a frequently used type in the API. Consider using IM_VEC2_CLASS_EXTRA to create implicit cast from/to our preferred type.
IM_MSVC_RUNTIME_CHECKS_OFF
struct ImVec2
{
float x, y;
constexpr ImVec2() : x(0.0f), y(0.0f) { }
constexpr ImVec2(float _x, float _y) : x(_x), y(_y) { }
float operator[] (size_t idx) const { IM_ASSERT(idx == 0 || idx == 1); return (&x)[idx]; } // We very rarely use this [] operator, the assert overhead is fine.
float& operator[] (size_t idx) { IM_ASSERT(idx == 0 || idx == 1); return (&x)[idx]; } // We very rarely use this [] operator, the assert overhead is fine.
#ifdef IM_VEC2_CLASS_EXTRA
IM_VEC2_CLASS_EXTRA // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec2.
#endif
};
// ImVec4: 4D vector used to store clipping rectangles, colors etc. [Compile-time configurable type]
struct ImVec4
{
float x, y, z, w;
constexpr ImVec4() : x(0.0f), y(0.0f), z(0.0f), w(0.0f) { }
constexpr ImVec4(float _x, float _y, float _z, float _w) : x(_x), y(_y), z(_z), w(_w) { }
#ifdef IM_VEC4_CLASS_EXTRA
IM_VEC4_CLASS_EXTRA // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec4.
#endif
};
IM_MSVC_RUNTIME_CHECKS_RESTORE
//-----------------------------------------------------------------------------
// [SECTION] Dear ImGui end-user API functions
// (Note that ImGui:: being a namespace, you can add extra ImGui:: functions in your own separate file. Please don't modify imgui source files!)
//-----------------------------------------------------------------------------
namespace ImGui
{
// Context creation and access
// - Each context create its own ImFontAtlas by default. You may instance one yourself and pass it to CreateContext() to share a font atlas between contexts.
// - DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for details.
IMGUI_API ImGuiContext* CreateContext(ImFontAtlas* shared_font_atlas = NULL);
IMGUI_API void DestroyContext(ImGuiContext* ctx = NULL); // NULL = destroy current context
IMGUI_API ImGuiContext* GetCurrentContext();
IMGUI_API void SetCurrentContext(ImGuiContext* ctx);
// Main
IMGUI_API ImGuiIO& GetIO(); // access the IO structure (mouse/keyboard/gamepad inputs, time, various configuration options/flags)
IMGUI_API ImGuiStyle& GetStyle(); // access the Style structure (colors, sizes). Always use PushStyleCol(), PushStyleVar() to modify style mid-frame!
IMGUI_API void NewFrame(); // start a new Dear ImGui frame, you can submit any command from this point until Render()/EndFrame().
IMGUI_API void EndFrame(); // ends the Dear ImGui frame. automatically called by Render(). If you don't need to render data (skipping rendering) you may call EndFrame() without Render()... but you'll have wasted CPU already! If you don't need to render, better to not create any windows and not call NewFrame() at all!
IMGUI_API void Render(); // ends the Dear ImGui frame, finalize the draw data. You can then get call GetDrawData().
IMGUI_API ImDrawData* GetDrawData(); // valid after Render() and until the next call to NewFrame(). this is what you have to render.
// Demo, Debug, Information
IMGUI_API void ShowDemoWindow(bool* p_open = NULL); // create Demo window. demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!
IMGUI_API void ShowMetricsWindow(bool* p_open = NULL); // create Metrics/Debugger window. display Dear ImGui internals: windows, draw commands, various internal state, etc.
IMGUI_API void ShowDebugLogWindow(bool* p_open = NULL); // create Debug Log window. display a simplified log of important dear imgui events.
IMGUI_API void ShowStackToolWindow(bool* p_open = NULL); // create Stack Tool window. hover items with mouse to query information about the source of their unique ID.
IMGUI_API void ShowAboutWindow(bool* p_open = NULL); // create About window. display Dear ImGui version, credits and build/system information.
IMGUI_API void ShowStyleEditor(ImGuiStyle* ref = NULL); // add style editor block (not a window). you can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it uses the default style)
IMGUI_API bool ShowStyleSelector(const char* label); // add style selector block (not a window), essentially a combo listing the default styles.
IMGUI_API void ShowFontSelector(const char* label); // add font selector block (not a window), essentially a combo listing the loaded fonts.
IMGUI_API void ShowUserGuide(); // add basic help/info block (not a window): how to manipulate ImGui as an end-user (mouse/keyboard controls).
IMGUI_API const char* GetVersion(); // get the compiled version string e.g. "1.80 WIP" (essentially the value for IMGUI_VERSION from the compiled version of imgui.cpp)
// Styles
IMGUI_API void StyleColorsDark(ImGuiStyle* dst = NULL); // new, recommended style (default)
IMGUI_API void StyleColorsLight(ImGuiStyle* dst = NULL); // best used with borders and a custom, thicker font
IMGUI_API void StyleColorsClassic(ImGuiStyle* dst = NULL); // classic imgui style
// Windows
// - Begin() = push window to the stack and start appending to it. End() = pop window from the stack.
// - Passing 'bool* p_open != NULL' shows a window-closing widget in the upper-right corner of the window,
// which clicking will set the boolean to false when clicked.
// - You may append multiple times to the same window during the same frame by calling Begin()/End() pairs multiple times.
// Some information such as 'flags' or 'p_open' will only be considered by the first call to Begin().
// - Begin() return false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting
// anything to the window. Always call a matching End() for each Begin() call, regardless of its return value!
// [Important: due to legacy reason, this is inconsistent with most other functions such as BeginMenu/EndMenu,
// BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding BeginXXX function
// returned true. Begin and BeginChild are the only odd ones out. Will be fixed in a future update.]
// - Note that the bottom of window stack always contains a window called "Debug".
IMGUI_API bool Begin(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0);
IMGUI_API void End();
// Child Windows
// - Use child windows to begin into a self-contained independent scrolling/clipping regions within a host window. Child windows can embed their own child.
// - For each independent axis of 'size': ==0.0f: use remaining host window size / >0.0f: fixed size / <0.0f: use remaining window size minus abs(size) / Each axis can use a different mode, e.g. ImVec2(0,400).
// - BeginChild() returns false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting anything to the window.
// Always call a matching EndChild() for each BeginChild() call, regardless of its return value.
// [Important: due to legacy reason, this is inconsistent with most other functions such as BeginMenu/EndMenu,
// BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding BeginXXX function
// returned true. Begin and BeginChild are the only odd ones out. Will be fixed in a future update.]
IMGUI_API bool BeginChild(const char* str_id, const ImVec2& size = ImVec2(0, 0), bool border = false, ImGuiWindowFlags flags = 0);
IMGUI_API bool BeginChild(ImGuiID id, const ImVec2& size = ImVec2(0, 0), bool border = false, ImGuiWindowFlags flags = 0);
IMGUI_API void EndChild();
// Windows Utilities
// - 'current window' = the window we are appending into while inside a Begin()/End() block. 'next window' = next window we will Begin() into.
IMGUI_API bool IsWindowAppearing();
IMGUI_API bool IsWindowCollapsed();
IMGUI_API bool IsWindowFocused(ImGuiFocusedFlags flags=0); // is current window focused? or its root/child, depending on flags. see flags for options.
IMGUI_API bool IsWindowHovered(ImGuiHoveredFlags flags=0); // is current window hovered (and typically: not blocked by a popup/modal)? see flags for options. NB: If you are trying to check whether your mouse should be dispatched to imgui or to your app, you should use the 'io.WantCaptureMouse' boolean for that! Please read the FAQ!
IMGUI_API ImDrawList* GetWindowDrawList(); // get draw list associated to the current window, to append your own drawing primitives
IMGUI_API ImVec2 GetWindowPos(); // get current window position in screen space (useful if you want to do your own drawing via the DrawList API)
IMGUI_API ImVec2 GetWindowSize(); // get current window size
IMGUI_API float GetWindowWidth(); // get current window width (shortcut for GetWindowSize().x)
IMGUI_API float GetWindowHeight(); // get current window height (shortcut for GetWindowSize().y)
// Window manipulation
// - Prefer using SetNextXXX functions (before Begin) rather that SetXXX functions (after Begin).
IMGUI_API void SetNextWindowPos(const ImVec2& pos, ImGuiCond cond = 0, const ImVec2& pivot = ImVec2(0, 0)); // set next window position. call before Begin(). use pivot=(0.5f,0.5f) to center on given point, etc.
IMGUI_API void SetNextWindowSize(const ImVec2& size, ImGuiCond cond = 0); // set next window size. set axis to 0.0f to force an auto-fit on this axis. call before Begin()
IMGUI_API void SetNextWindowSizeConstraints(const ImVec2& size_min, const ImVec2& size_max, ImGuiSizeCallback custom_callback = NULL, void* custom_callback_data = NULL); // set next window size limits. use -1,-1 on either X/Y axis to preserve the current size. Sizes will be rounded down. Use callback to apply non-trivial programmatic constraints.
IMGUI_API void SetNextWindowContentSize(const ImVec2& size); // set next window content size (~ scrollable client area, which enforce the range of scrollbars). Not including window decorations (title bar, menu bar, etc.) nor WindowPadding. set an axis to 0.0f to leave it automatic. call before Begin()
IMGUI_API void SetNextWindowCollapsed(bool collapsed, ImGuiCond cond = 0); // set next window collapsed state. call before Begin()
IMGUI_API void SetNextWindowFocus(); // set next window to be focused / top-most. call before Begin()
IMGUI_API void SetNextWindowScroll(const ImVec2& scroll); // set next window scrolling value (use < 0.0f to not affect a given axis).
IMGUI_API void SetNextWindowBgAlpha(float alpha); // set next window background color alpha. helper to easily override the Alpha component of ImGuiCol_WindowBg/ChildBg/PopupBg. you may also use ImGuiWindowFlags_NoBackground.
IMGUI_API void SetWindowPos(const ImVec2& pos, ImGuiCond cond = 0); // (not recommended) set current window position - call within Begin()/End(). prefer using SetNextWindowPos(), as this may incur tearing and side-effects.
IMGUI_API void SetWindowSize(const ImVec2& size, ImGuiCond cond = 0); // (not recommended) set current window size - call within Begin()/End(). set to ImVec2(0, 0) to force an auto-fit. prefer using SetNextWindowSize(), as this may incur tearing and minor side-effects.
IMGUI_API void SetWindowCollapsed(bool collapsed, ImGuiCond cond = 0); // (not recommended) set current window collapsed state. prefer using SetNextWindowCollapsed().
IMGUI_API void SetWindowFocus(); // (not recommended) set current window to be focused / top-most. prefer using SetNextWindowFocus().
IMGUI_API void SetWindowFontScale(float scale); // [OBSOLETE] set font scale. Adjust IO.FontGlobalScale if you want to scale all windows. This is an old API! For correct scaling, prefer to reload font + rebuild ImFontAtlas + call style.ScaleAllSizes().
IMGUI_API void SetWindowPos(const char* name, const ImVec2& pos, ImGuiCond cond = 0); // set named window position.
IMGUI_API void SetWindowSize(const char* name, const ImVec2& size, ImGuiCond cond = 0); // set named window size. set axis to 0.0f to force an auto-fit on this axis.
IMGUI_API void SetWindowCollapsed(const char* name, bool collapsed, ImGuiCond cond = 0); // set named window collapsed state
IMGUI_API void SetWindowFocus(const char* name); // set named window to be focused / top-most. use NULL to remove focus.
// Content region
// - Retrieve available space from a given point. GetContentRegionAvail() is frequently useful.
// - Those functions are bound to be redesigned (they are confusing, incomplete and the Min/Max return values are in local window coordinates which increases confusion)
IMGUI_API ImVec2 GetContentRegionAvail(); // == GetContentRegionMax() - GetCursorPos()
IMGUI_API ImVec2 GetContentRegionMax(); // current content boundaries (typically window boundaries including scrolling, or current column boundaries), in windows coordinates
IMGUI_API ImVec2 GetWindowContentRegionMin(); // content boundaries min for the full window (roughly (0,0)-Scroll), in window coordinates
IMGUI_API ImVec2 GetWindowContentRegionMax(); // content boundaries max for the full window (roughly (0,0)+Size-Scroll) where Size can be overridden with SetNextWindowContentSize(), in window coordinates
// Windows Scrolling
// - Any change of Scroll will be applied at the beginning of next frame in the first call to Begin().
// - You may instead use SetNextWindowScroll() prior to calling Begin() to avoid this delay, as an alternative to using SetScrollX()/SetScrollY().
IMGUI_API float GetScrollX(); // get scrolling amount [0 .. GetScrollMaxX()]
IMGUI_API float GetScrollY(); // get scrolling amount [0 .. GetScrollMaxY()]
IMGUI_API void SetScrollX(float scroll_x); // set scrolling amount [0 .. GetScrollMaxX()]
IMGUI_API void SetScrollY(float scroll_y); // set scrolling amount [0 .. GetScrollMaxY()]
IMGUI_API float GetScrollMaxX(); // get maximum scrolling amount ~~ ContentSize.x - WindowSize.x - DecorationsSize.x
IMGUI_API float GetScrollMaxY(); // get maximum scrolling amount ~~ ContentSize.y - WindowSize.y - DecorationsSize.y
IMGUI_API void SetScrollHereX(float center_x_ratio = 0.5f); // adjust scrolling amount to make current cursor position visible. center_x_ratio=0.0: left, 0.5: center, 1.0: right. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.
IMGUI_API void SetScrollHereY(float center_y_ratio = 0.5f); // adjust scrolling amount to make current cursor position visible. center_y_ratio=0.0: top, 0.5: center, 1.0: bottom. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.
IMGUI_API void SetScrollFromPosX(float local_x, float center_x_ratio = 0.5f); // adjust scrolling amount to make given position visible. Generally GetCursorStartPos() + offset to compute a valid position.
IMGUI_API void SetScrollFromPosY(float local_y, float center_y_ratio = 0.5f); // adjust scrolling amount to make given position visible. Generally GetCursorStartPos() + offset to compute a valid position.
// Parameters stacks (shared)
IMGUI_API void PushFont(ImFont* font); // use NULL as a shortcut to push default font
IMGUI_API void PopFont();
IMGUI_API void PushStyleColor(ImGuiCol idx, ImU32 col); // modify a style color. always use this if you modify the style after NewFrame().
IMGUI_API void PushStyleColor(ImGuiCol idx, const ImVec4& col);
IMGUI_API void PopStyleColor(int count = 1);
IMGUI_API void PushStyleVar(ImGuiStyleVar idx, float val); // modify a style float variable. always use this if you modify the style after NewFrame().
IMGUI_API void PushStyleVar(ImGuiStyleVar idx, const ImVec2& val); // modify a style ImVec2 variable. always use this if you modify the style after NewFrame().
IMGUI_API void PopStyleVar(int count = 1);
IMGUI_API void PushTabStop(bool tab_stop); // == tab stop enable. Allow focusing using TAB/Shift-TAB, enabled by default but you can disable it for certain widgets
IMGUI_API void PopTabStop();
IMGUI_API void PushButtonRepeat(bool repeat); // in 'repeat' mode, Button*() functions return repeated true in a typematic manner (using io.KeyRepeatDelay/io.KeyRepeatRate setting). Note that you can call IsItemActive() after any Button() to tell if the button is held in the current frame.
IMGUI_API void PopButtonRepeat();
// Parameters stacks (current window)
IMGUI_API void PushItemWidth(float item_width); // push width of items for common large "item+label" widgets. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side).
IMGUI_API void PopItemWidth();
IMGUI_API void SetNextItemWidth(float item_width); // set width of the _next_ common large "item+label" widget. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side)
IMGUI_API float CalcItemWidth(); // width of item given pushed settings and current cursor position. NOT necessarily the width of last item unlike most 'Item' functions.
IMGUI_API void PushTextWrapPos(float wrap_local_pos_x = 0.0f); // push word-wrapping position for Text*() commands. < 0.0f: no wrapping; 0.0f: wrap to end of window (or column); > 0.0f: wrap at 'wrap_pos_x' position in window local space
IMGUI_API void PopTextWrapPos();
// Style read access
// - Use the ShowStyleEditor() function to interactively see/edit the colors.
IMGUI_API ImFont* GetFont(); // get current font
IMGUI_API float GetFontSize(); // get current font size (= height in pixels) of current font with current scale applied
IMGUI_API ImVec2 GetFontTexUvWhitePixel(); // get UV coordinate for a while pixel, useful to draw custom shapes via the ImDrawList API
IMGUI_API ImU32 GetColorU32(ImGuiCol idx, float alpha_mul = 1.0f); // retrieve given style color with style alpha applied and optional extra alpha multiplier, packed as a 32-bit value suitable for ImDrawList
IMGUI_API ImU32 GetColorU32(const ImVec4& col); // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
IMGUI_API ImU32 GetColorU32(ImU32 col); // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
IMGUI_API const ImVec4& GetStyleColorVec4(ImGuiCol idx); // retrieve style color as stored in ImGuiStyle structure. use to feed back into PushStyleColor(), otherwise use GetColorU32() to get style color with style alpha baked in.
// Cursor / Layout
// - By "cursor" we mean the current output position.
// - The typical widget behavior is to output themselves at the current cursor position, then move the cursor one line down.
// - You can call SameLine() between widgets to undo the last carriage return and output at the right of the preceding widget.
// - Attention! We currently have inconsistencies between window-local and absolute positions we will aim to fix with future API:
// Window-local coordinates: SameLine(), GetCursorPos(), SetCursorPos(), GetCursorStartPos(), GetContentRegionMax(), GetWindowContentRegion*(), PushTextWrapPos()
// Absolute coordinate: GetCursorScreenPos(), SetCursorScreenPos(), all ImDrawList:: functions.
IMGUI_API void Separator(); // separator, generally horizontal. inside a menu bar or in horizontal layout mode, this becomes a vertical separator.
IMGUI_API void SameLine(float offset_from_start_x=0.0f, float spacing=-1.0f); // call between widgets or groups to layout them horizontally. X position given in window coordinates.
IMGUI_API void NewLine(); // undo a SameLine() or force a new line when in a horizontal-layout context.
IMGUI_API void Spacing(); // add vertical spacing.
IMGUI_API void Dummy(const ImVec2& size); // add a dummy item of given size. unlike InvisibleButton(), Dummy() won't take the mouse click or be navigable into.
IMGUI_API void Indent(float indent_w = 0.0f); // move content position toward the right, by indent_w, or style.IndentSpacing if indent_w <= 0
IMGUI_API void Unindent(float indent_w = 0.0f); // move content position back to the left, by indent_w, or style.IndentSpacing if indent_w <= 0
IMGUI_API void BeginGroup(); // lock horizontal starting position
IMGUI_API void EndGroup(); // unlock horizontal starting position + capture the whole group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine() on whole group, etc.)
IMGUI_API ImVec2 GetCursorPos(); // cursor position in window coordinates (relative to window position)
IMGUI_API float GetCursorPosX(); // (some functions are using window-relative coordinates, such as: GetCursorPos, GetCursorStartPos, GetContentRegionMax, GetWindowContentRegion* etc.
IMGUI_API float GetCursorPosY(); // other functions such as GetCursorScreenPos or everything in ImDrawList::
IMGUI_API void SetCursorPos(const ImVec2& local_pos); // are using the main, absolute coordinate system.
IMGUI_API void SetCursorPosX(float local_x); // GetWindowPos() + GetCursorPos() == GetCursorScreenPos() etc.)
IMGUI_API void SetCursorPosY(float local_y); //
IMGUI_API ImVec2 GetCursorStartPos(); // initial cursor position in window coordinates
IMGUI_API ImVec2 GetCursorScreenPos(); // cursor position in absolute coordinates (useful to work with ImDrawList API). generally top-left == GetMainViewport()->Pos == (0,0) in single viewport mode, and bottom-right == GetMainViewport()->Pos+Size == io.DisplaySize in single-viewport mode.
IMGUI_API void SetCursorScreenPos(const ImVec2& pos); // cursor position in absolute coordinates
IMGUI_API void AlignTextToFramePadding(); // vertically align upcoming text baseline to FramePadding.y so that it will align properly to regularly framed items (call if you have text on a line before a framed item)
IMGUI_API float GetTextLineHeight(); // ~ FontSize
IMGUI_API float GetTextLineHeightWithSpacing(); // ~ FontSize + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of text)
IMGUI_API float GetFrameHeight(); // ~ FontSize + style.FramePadding.y * 2
IMGUI_API float GetFrameHeightWithSpacing(); // ~ FontSize + style.FramePadding.y * 2 + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of framed widgets)
// ID stack/scopes
// Read the FAQ (docs/FAQ.md or http://dearimgui.org/faq) for more details about how ID are handled in dear imgui.
// - Those questions are answered and impacted by understanding of the ID stack system:
// - "Q: Why is my widget not reacting when I click on it?"
// - "Q: How can I have widgets with an empty label?"
// - "Q: How can I have multiple widgets with the same label?"
// - Short version: ID are hashes of the entire ID stack. If you are creating widgets in a loop you most likely
// want to push a unique identifier (e.g. object pointer, loop index) to uniquely differentiate them.
// - You can also use the "Label##foobar" syntax within widget label to distinguish them from each others.
// - In this header file we use the "label"/"name" terminology to denote a string that will be displayed + used as an ID,
// whereas "str_id" denote a string that is only used as an ID and not normally displayed.
IMGUI_API void PushID(const char* str_id); // push string into the ID stack (will hash string).
IMGUI_API void PushID(const char* str_id_begin, const char* str_id_end); // push string into the ID stack (will hash string).
IMGUI_API void PushID(const void* ptr_id); // push pointer into the ID stack (will hash pointer).
IMGUI_API void PushID(int int_id); // push integer into the ID stack (will hash integer).
IMGUI_API void PopID(); // pop from the ID stack.
IMGUI_API ImGuiID GetID(const char* str_id); // calculate unique ID (hash of whole ID stack + given parameter). e.g. if you want to query into ImGuiStorage yourself
IMGUI_API ImGuiID GetID(const char* str_id_begin, const char* str_id_end);
IMGUI_API ImGuiID GetID(const void* ptr_id);
// Widgets: Text
IMGUI_API void TextUnformatted(const char* text, const char* text_end = NULL); // raw text without formatting. Roughly equivalent to Text("%s", text) but: A) doesn't require null terminated string if 'text_end' is specified, B) it's faster, no memory copy is done, no buffer size limits, recommended for long chunks of text.
IMGUI_API void Text(const char* fmt, ...) IM_FMTARGS(1); // formatted text
IMGUI_API void TextV(const char* fmt, va_list args) IM_FMTLIST(1);
IMGUI_API void TextColored(const ImVec4& col, const char* fmt, ...) IM_FMTARGS(2); // shortcut for PushStyleColor(ImGuiCol_Text, col); Text(fmt, ...); PopStyleColor();
IMGUI_API void TextColoredV(const ImVec4& col, const char* fmt, va_list args) IM_FMTLIST(2);
IMGUI_API void TextDisabled(const char* fmt, ...) IM_FMTARGS(1); // shortcut for PushStyleColor(ImGuiCol_Text, style.Colors[ImGuiCol_TextDisabled]); Text(fmt, ...); PopStyleColor();
IMGUI_API void TextDisabledV(const char* fmt, va_list args) IM_FMTLIST(1);
IMGUI_API void TextWrapped(const char* fmt, ...) IM_FMTARGS(1); // shortcut for PushTextWrapPos(0.0f); Text(fmt, ...); PopTextWrapPos();. Note that this won't work on an auto-resizing window if there's no other widgets to extend the window width, yoy may need to set a size using SetNextWindowSize().
IMGUI_API void TextWrappedV(const char* fmt, va_list args) IM_FMTLIST(1);
IMGUI_API void LabelText(const char* label, const char* fmt, ...) IM_FMTARGS(2); // display text+label aligned the same way as value+label widgets
IMGUI_API void LabelTextV(const char* label, const char* fmt, va_list args) IM_FMTLIST(2);
IMGUI_API void BulletText(const char* fmt, ...) IM_FMTARGS(1); // shortcut for Bullet()+Text()
IMGUI_API void BulletTextV(const char* fmt, va_list args) IM_FMTLIST(1);
IMGUI_API void SeparatorText(const char* label); // currently: formatted text with an horizontal line
// Widgets: Main
// - Most widgets return true when the value has been changed or when pressed/selected
// - You may also use one of the many IsItemXXX functions (e.g. IsItemActive, IsItemHovered, etc.) to query widget state.
IMGUI_API bool Button(const char* label, const ImVec2& size = ImVec2(0, 0)); // button
IMGUI_API bool SmallButton(const char* label); // button with FramePadding=(0,0) to easily embed within text
IMGUI_API bool InvisibleButton(const char* str_id, const ImVec2& size, ImGuiButtonFlags flags = 0); // flexible button behavior without the visuals, frequently useful to build custom behaviors using the public api (along with IsItemActive, IsItemHovered, etc.)
IMGUI_API bool ArrowButton(const char* str_id, ImGuiDir dir); // square button with an arrow shape
IMGUI_API bool Checkbox(const char* label, bool* v);
IMGUI_API bool CheckboxFlags(const char* label, int* flags, int flags_value);
IMGUI_API bool CheckboxFlags(const char* label, unsigned int* flags, unsigned int flags_value);
IMGUI_API bool RadioButton(const char* label, bool active); // use with e.g. if (RadioButton("one", my_value==1)) { my_value = 1; }
IMGUI_API bool RadioButton(const char* label, int* v, int v_button); // shortcut to handle the above pattern when value is an integer
IMGUI_API void ProgressBar(float fraction, const ImVec2& size_arg = ImVec2(-FLT_MIN, 0), const char* overlay = NULL);
IMGUI_API void Bullet(); // draw a small circle + keep the cursor on the same line. advance cursor x position by GetTreeNodeToLabelSpacing(), same distance that TreeNode() uses
// Widgets: Images
// - Read about ImTextureID here: https://github.com/ocornut/imgui/wiki/Image-Loading-and-Displaying-Examples
IMGUI_API void Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1, 1), const ImVec4& tint_col = ImVec4(1, 1, 1, 1), const ImVec4& border_col = ImVec4(0, 0, 0, 0));
IMGUI_API bool ImageButton(const char* str_id, ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1, 1), const ImVec4& bg_col = ImVec4(0, 0, 0, 0), const ImVec4& tint_col = ImVec4(1, 1, 1, 1));
// Widgets: Combo Box (Dropdown)
// - The BeginCombo()/EndCombo() api allows you to manage your contents and selection state however you want it, by creating e.g. Selectable() items.
// - The old Combo() api are helpers over BeginCombo()/EndCombo() which are kept available for convenience purpose. This is analogous to how ListBox are created.
IMGUI_API bool BeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags = 0);
IMGUI_API void EndCombo(); // only call EndCombo() if BeginCombo() returns true!
IMGUI_API bool Combo(const char* label, int* current_item, const char* const items[], int items_count, int popup_max_height_in_items = -1);
IMGUI_API bool Combo(const char* label, int* current_item, const char* items_separated_by_zeros, int popup_max_height_in_items = -1); // Separate items with \0 within a string, end item-list with \0\0. e.g. "One\0Two\0Three\0"
IMGUI_API bool Combo(const char* label, int* current_item, bool(*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int popup_max_height_in_items = -1);
// Widgets: Drag Sliders
// - CTRL+Click on any drag box to turn them into an input box. Manually input values aren't clamped by default and can go off-bounds. Use ImGuiSliderFlags_AlwaysClamp to always clamp.
// - For all the Float2/Float3/Float4/Int2/Int3/Int4 versions of every function, note that a 'float v[X]' function argument is the same as 'float* v',
// the array syntax is just a way to document the number of elements that are expected to be accessible. You can pass address of your first element out of a contiguous set, e.g. &myvector.x
// - Adjust format string to decorate the value with a prefix, a suffix, or adapt the editing and display precision e.g. "%.3f" -> 1.234; "%5.2f secs" -> 01.23 secs; "Biscuit: %.0f" -> Biscuit: 1; etc.
// - Format string may also be set to NULL or use the default format ("%f" or "%d").
// - Speed are per-pixel of mouse movement (v_speed=0.2f: mouse needs to move by 5 pixels to increase value by 1). For gamepad/keyboard navigation, minimum speed is Max(v_speed, minimum_step_at_given_precision).
// - Use v_min < v_max to clamp edits to given limits. Note that CTRL+Click manual input can override those limits if ImGuiSliderFlags_AlwaysClamp is not used.
// - Use v_max = FLT_MAX / INT_MAX etc to avoid clamping to a maximum, same with v_min = -FLT_MAX / INT_MIN to avoid clamping to a minimum.
// - We use the same sets of flags for DragXXX() and SliderXXX() functions as the features are the same and it makes it easier to swap them.
// - Legacy: Pre-1.78 there are DragXXX() function signatures that take a final `float power=1.0f' argument instead of the `ImGuiSliderFlags flags=0' argument.
// If you get a warning converting a float to ImGuiSliderFlags, read https://github.com/ocornut/imgui/issues/3361
IMGUI_API bool DragFloat(const char* label, float* v, float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0); // If v_min >= v_max we have no bound
IMGUI_API bool DragFloat2(const char* label, float v[2], float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool DragFloat3(const char* label, float v[3], float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool DragFloat4(const char* label, float v[4], float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool DragFloatRange2(const char* label, float* v_current_min, float* v_current_max, float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", const char* format_max = NULL, ImGuiSliderFlags flags = 0);
IMGUI_API bool DragInt(const char* label, int* v, float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0); // If v_min >= v_max we have no bound
IMGUI_API bool DragInt2(const char* label, int v[2], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool DragInt3(const char* label, int v[3], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool DragInt4(const char* label, int v[4], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool DragIntRange2(const char* label, int* v_current_min, int* v_current_max, float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", const char* format_max = NULL, ImGuiSliderFlags flags = 0);
IMGUI_API bool DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed = 1.0f, const void* p_min = NULL, const void* p_max = NULL, const char* format = NULL, ImGuiSliderFlags flags = 0);
IMGUI_API bool DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed = 1.0f, const void* p_min = NULL, const void* p_max = NULL, const char* format = NULL, ImGuiSliderFlags flags = 0);
// Widgets: Regular Sliders
// - CTRL+Click on any slider to turn them into an input box. Manually input values aren't clamped by default and can go off-bounds. Use ImGuiSliderFlags_AlwaysClamp to always clamp.
// - Adjust format string to decorate the value with a prefix, a suffix, or adapt the editing and display precision e.g. "%.3f" -> 1.234; "%5.2f secs" -> 01.23 secs; "Biscuit: %.0f" -> Biscuit: 1; etc.
// - Format string may also be set to NULL or use the default format ("%f" or "%d").
// - Legacy: Pre-1.78 there are SliderXXX() function signatures that take a final `float power=1.0f' argument instead of the `ImGuiSliderFlags flags=0' argument.
// If you get a warning converting a float to ImGuiSliderFlags, read https://github.com/ocornut/imgui/issues/3361
IMGUI_API bool SliderFloat(const char* label, float* v, float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0); // adjust format to decorate the value with a prefix or a suffix for in-slider labels or unit display.
IMGUI_API bool SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderAngle(const char* label, float* v_rad, float v_degrees_min = -360.0f, float v_degrees_max = +360.0f, const char* format = "%.0f deg", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderInt(const char* label, int* v, int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderInt2(const char* label, int v[2], int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderInt3(const char* label, int v[3], int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderInt4(const char* label, int v[4], int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_min, const void* p_max, const char* format = NULL, ImGuiSliderFlags flags = 0);
IMGUI_API bool VSliderFloat(const char* label, const ImVec2& size, float* v, float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
IMGUI_API bool VSliderInt(const char* label, const ImVec2& size, int* v, int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
IMGUI_API bool VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, ImGuiSliderFlags flags = 0);
// Widgets: Input with Keyboard
// - If you want to use InputText() with std::string or any custom dynamic string type, see misc/cpp/imgui_stdlib.h and comments in imgui_demo.cpp.
// - Most of the ImGuiInputTextFlags flags are only useful for InputText() and not for InputFloatX, InputIntX, InputDouble etc.
IMGUI_API bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextMultiline(const char* label, char* buf, size_t buf_size, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextWithHint(const char* label, const char* hint, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputFloat(const char* label, float* v, float step = 0.0f, float step_fast = 0.0f, const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputFloat2(const char* label, float v[2], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputFloat3(const char* label, float v[3], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputFloat4(const char* label, float v[4], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputInt(const char* label, int* v, int step = 1, int step_fast = 100, ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputInt2(const char* label, int v[2], ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputInt3(const char* label, int v[3], ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputInt4(const char* label, int v[4], ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputDouble(const char* label, double* v, double step = 0.0, double step_fast = 0.0, const char* format = "%.6f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_step = NULL, const void* p_step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_step = NULL, const void* p_step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
// Widgets: Color Editor/Picker (tip: the ColorEdit* functions have a little color square that can be left-clicked to open a picker, and right-clicked to open an option menu.)
// - Note that in C++ a 'float v[X]' function argument is the _same_ as 'float* v', the array syntax is just a way to document the number of elements that are expected to be accessible.
// - You can pass the address of a first float element out of a contiguous structure, e.g. &myvector.x
IMGUI_API bool ColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags = 0);
IMGUI_API bool ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags = 0);
IMGUI_API bool ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags = 0);
IMGUI_API bool ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags = 0, const float* ref_col = NULL);
IMGUI_API bool ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // display a color square/button, hover for details, return true when pressed.
IMGUI_API void SetColorEditOptions(ImGuiColorEditFlags flags); // initialize current options (generally on application startup) if you want to select a default format, picker type, etc. User will be able to change many settings, unless you pass the _NoOptions flag to your calls.
// Widgets: Trees
// - TreeNode functions return true when the node is open, in which case you need to also call TreePop() when you are finished displaying the tree node contents.
IMGUI_API bool TreeNode(const char* label);
IMGUI_API bool TreeNode(const char* str_id, const char* fmt, ...) IM_FMTARGS(2); // helper variation to easily decorelate the id from the displayed string. Read the FAQ about why and how to use ID. to align arbitrary text at the same level as a TreeNode() you can use Bullet().
IMGUI_API bool TreeNode(const void* ptr_id, const char* fmt, ...) IM_FMTARGS(2); // "
IMGUI_API bool TreeNodeV(const char* str_id, const char* fmt, va_list args) IM_FMTLIST(2);
IMGUI_API bool TreeNodeV(const void* ptr_id, const char* fmt, va_list args) IM_FMTLIST(2);
IMGUI_API bool TreeNodeEx(const char* label, ImGuiTreeNodeFlags flags = 0);
IMGUI_API bool TreeNodeEx(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API bool TreeNodeEx(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API bool TreeNodeExV(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) IM_FMTLIST(3);
IMGUI_API bool TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) IM_FMTLIST(3);
IMGUI_API void TreePush(const char* str_id); // ~ Indent()+PushId(). Already called by TreeNode() when returning true, but you can call TreePush/TreePop yourself if desired.
IMGUI_API void TreePush(const void* ptr_id); // "
IMGUI_API void TreePop(); // ~ Unindent()+PopId()
IMGUI_API float GetTreeNodeToLabelSpacing(); // horizontal distance preceding label when using TreeNode*() or Bullet() == (g.FontSize + style.FramePadding.x*2) for a regular unframed TreeNode
IMGUI_API bool CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags = 0); // if returning 'true' the header is open. doesn't indent nor push on ID stack. user doesn't have to call TreePop().
IMGUI_API bool CollapsingHeader(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags = 0); // when 'p_visible != NULL': if '*p_visible==true' display an additional small close button on upper right of the header which will set the bool to false when clicked, if '*p_visible==false' don't display the header.
IMGUI_API void SetNextItemOpen(bool is_open, ImGuiCond cond = 0); // set next TreeNode/CollapsingHeader open state.
// Widgets: Selectables
// - A selectable highlights when hovered, and can display another color when selected.
// - Neighbors selectable extend their highlight bounds in order to leave no gap between them. This is so a series of selected Selectable appear contiguous.
IMGUI_API bool Selectable(const char* label, bool selected = false, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // "bool selected" carry the selection state (read-only). Selectable() is clicked is returns true so you can modify your selection state. size.x==0.0: use remaining width, size.x>0.0: specify width. size.y==0.0: use label height, size.y>0.0: specify height
IMGUI_API bool Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // "bool* p_selected" point to the selection state (read-write), as a convenient helper.
// Widgets: List Boxes
// - This is essentially a thin wrapper to using BeginChild/EndChild with some stylistic changes.
// - The BeginListBox()/EndListBox() api allows you to manage your contents and selection state however you want it, by creating e.g. Selectable() or any items.
// - The simplified/old ListBox() api are helpers over BeginListBox()/EndListBox() which are kept available for convenience purpose. This is analoguous to how Combos are created.
// - Choose frame width: size.x > 0.0f: custom / size.x < 0.0f or -FLT_MIN: right-align / size.x = 0.0f (default): use current ItemWidth
// - Choose frame height: size.y > 0.0f: custom / size.y < 0.0f or -FLT_MIN: bottom-align / size.y = 0.0f (default): arbitrary default height which can fit ~7 items
IMGUI_API bool BeginListBox(const char* label, const ImVec2& size = ImVec2(0, 0)); // open a framed scrolling region
IMGUI_API void EndListBox(); // only call EndListBox() if BeginListBox() returned true!
IMGUI_API bool ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items = -1);
IMGUI_API bool ListBox(const char* label, int* current_item, bool (*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int height_in_items = -1);
// Widgets: Data Plotting
// - Consider using ImPlot (https://github.com/epezent/implot) which is much better!
IMGUI_API void PlotLines(const char* label, const float* values, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0), int stride = sizeof(float));
IMGUI_API void PlotLines(const char* label, float(*values_getter)(void* data, int idx), void* data, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0));
IMGUI_API void PlotHistogram(const char* label, const float* values, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0), int stride = sizeof(float));
IMGUI_API void PlotHistogram(const char* label, float(*values_getter)(void* data, int idx), void* data, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0));
// Widgets: Value() Helpers.
// - Those are merely shortcut to calling Text() with a format string. Output single value in "name: value" format (tip: freely declare more in your code to handle your types. you can add functions to the ImGui namespace)
IMGUI_API void Value(const char* prefix, bool b);
IMGUI_API void Value(const char* prefix, int v);
IMGUI_API void Value(const char* prefix, unsigned int v);
IMGUI_API void Value(const char* prefix, float v, const char* float_format = NULL);
// Widgets: Menus
// - Use BeginMenuBar() on a window ImGuiWindowFlags_MenuBar to append to its menu bar.
// - Use BeginMainMenuBar() to create a menu bar at the top of the screen and append to it.
// - Use BeginMenu() to create a menu. You can call BeginMenu() multiple time with the same identifier to append more items to it.
// - Not that MenuItem() keyboardshortcuts are displayed as a convenience but _not processed_ by Dear ImGui at the moment.
IMGUI_API bool BeginMenuBar(); // append to menu-bar of current window (requires ImGuiWindowFlags_MenuBar flag set on parent window).
IMGUI_API void EndMenuBar(); // only call EndMenuBar() if BeginMenuBar() returns true!
IMGUI_API bool BeginMainMenuBar(); // create and append to a full screen menu-bar.
IMGUI_API void EndMainMenuBar(); // only call EndMainMenuBar() if BeginMainMenuBar() returns true!
IMGUI_API bool BeginMenu(const char* label, bool enabled = true); // create a sub-menu entry. only call EndMenu() if this returns true!
IMGUI_API void EndMenu(); // only call EndMenu() if BeginMenu() returns true!
IMGUI_API bool MenuItem(const char* label, const char* shortcut = NULL, bool selected = false, bool enabled = true); // return true when activated.
IMGUI_API bool MenuItem(const char* label, const char* shortcut, bool* p_selected, bool enabled = true); // return true when activated + toggle (*p_selected) if p_selected != NULL
// Tooltips
// - Tooltip are windows following the mouse. They do not take focus away.
IMGUI_API bool BeginTooltip(); // begin/append a tooltip window. to create full-featured tooltip (with any kind of items).
IMGUI_API void EndTooltip(); // only call EndTooltip() if BeginTooltip() returns true!
IMGUI_API void SetTooltip(const char* fmt, ...) IM_FMTARGS(1); // set a text-only tooltip, typically use with ImGui::IsItemHovered(). override any previous call to SetTooltip().
IMGUI_API void SetTooltipV(const char* fmt, va_list args) IM_FMTLIST(1);
// Popups, Modals
// - They block normal mouse hovering detection (and therefore most mouse interactions) behind them.
// - If not modal: they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
// - Their visibility state (~bool) is held internally instead of being held by the programmer as we are used to with regular Begin*() calls.
// - The 3 properties above are related: we need to retain popup visibility state in the library because popups may be closed as any time.
// - You can bypass the hovering restriction by using ImGuiHoveredFlags_AllowWhenBlockedByPopup when calling IsItemHovered() or IsWindowHovered().
// - IMPORTANT: Popup identifiers are relative to the current ID stack, so OpenPopup and BeginPopup generally needs to be at the same level of the stack.
// This is sometimes leading to confusing mistakes. May rework this in the future.
// Popups: begin/end functions
// - BeginPopup(): query popup state, if open start appending into the window. Call EndPopup() afterwards. ImGuiWindowFlags are forwarded to the window.
// - BeginPopupModal(): block every interaction behind the window, cannot be closed by user, add a dimming background, has a title bar.
IMGUI_API bool BeginPopup(const char* str_id, ImGuiWindowFlags flags = 0); // return true if the popup is open, and you can start outputting to it.
IMGUI_API bool BeginPopupModal(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0); // return true if the modal is open, and you can start outputting to it.
IMGUI_API void EndPopup(); // only call EndPopup() if BeginPopupXXX() returns true!
// Popups: open/close functions
// - OpenPopup(): set popup state to open. ImGuiPopupFlags are available for opening options.
// - If not modal: they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
// - CloseCurrentPopup(): use inside the BeginPopup()/EndPopup() scope to close manually.
// - CloseCurrentPopup() is called by default by Selectable()/MenuItem() when activated (FIXME: need some options).
// - Use ImGuiPopupFlags_NoOpenOverExistingPopup to avoid opening a popup if there's already one at the same level. This is equivalent to e.g. testing for !IsAnyPopupOpen() prior to OpenPopup().
// - Use IsWindowAppearing() after BeginPopup() to tell if a window just opened.
// - IMPORTANT: Notice that for OpenPopupOnItemClick() we exceptionally default flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter
IMGUI_API void OpenPopup(const char* str_id, ImGuiPopupFlags popup_flags = 0); // call to mark popup as open (don't call every frame!).
IMGUI_API void OpenPopup(ImGuiID id, ImGuiPopupFlags popup_flags = 0); // id overload to facilitate calling from nested stacks
IMGUI_API void OpenPopupOnItemClick(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1); // helper to open popup when clicked on last item. Default to ImGuiPopupFlags_MouseButtonRight == 1. (note: actually triggers on the mouse _released_ event to be consistent with popup behaviors)
IMGUI_API void CloseCurrentPopup(); // manually close the popup we have begin-ed into.
// Popups: open+begin combined functions helpers
// - Helpers to do OpenPopup+BeginPopup where the Open action is triggered by e.g. hovering an item and right-clicking.
// - They are convenient to easily create context menus, hence the name.
// - IMPORTANT: Notice that BeginPopupContextXXX takes ImGuiPopupFlags just like OpenPopup() and unlike BeginPopup(). For full consistency, we may add ImGuiWindowFlags to the BeginPopupContextXXX functions in the future.
// - IMPORTANT: Notice that we exceptionally default their flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter, so if you add other flags remember to re-add the ImGuiPopupFlags_MouseButtonRight.
IMGUI_API bool BeginPopupContextItem(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1); // open+begin popup when clicked on last item. Use str_id==NULL to associate the popup to previous item. If you want to use that on a non-interactive item such as Text() you need to pass in an explicit ID here. read comments in .cpp!
IMGUI_API bool BeginPopupContextWindow(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);// open+begin popup when clicked on current window.
IMGUI_API bool BeginPopupContextVoid(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1); // open+begin popup when clicked in void (where there are no windows).
// Popups: query functions
// - IsPopupOpen(): return true if the popup is open at the current BeginPopup() level of the popup stack.
// - IsPopupOpen() with ImGuiPopupFlags_AnyPopupId: return true if any popup is open at the current BeginPopup() level of the popup stack.
// - IsPopupOpen() with ImGuiPopupFlags_AnyPopupId + ImGuiPopupFlags_AnyPopupLevel: return true if any popup is open.
IMGUI_API bool IsPopupOpen(const char* str_id, ImGuiPopupFlags flags = 0); // return true if the popup is open.
// Tables
// - Full-featured replacement for old Columns API.
// - See Demo->Tables for demo code. See top of imgui_tables.cpp for general commentary.
// - See ImGuiTableFlags_ and ImGuiTableColumnFlags_ enums for a description of available flags.
// The typical call flow is:
// - 1. Call BeginTable(), early out if returning false.
// - 2. Optionally call TableSetupColumn() to submit column name/flags/defaults.
// - 3. Optionally call TableSetupScrollFreeze() to request scroll freezing of columns/rows.
// - 4. Optionally call TableHeadersRow() to submit a header row. Names are pulled from TableSetupColumn() data.
// - 5. Populate contents:
// - In most situations you can use TableNextRow() + TableSetColumnIndex(N) to start appending into a column.
// - If you are using tables as a sort of grid, where every column is holding the same type of contents,
// you may prefer using TableNextColumn() instead of TableNextRow() + TableSetColumnIndex().
// TableNextColumn() will automatically wrap-around into the next row if needed.
// - IMPORTANT: Comparatively to the old Columns() API, we need to call TableNextColumn() for the first column!
// - Summary of possible call flow:
// --------------------------------------------------------------------------------------------------------
// TableNextRow() -> TableSetColumnIndex(0) -> Text("Hello 0") -> TableSetColumnIndex(1) -> Text("Hello 1") // OK
// TableNextRow() -> TableNextColumn() -> Text("Hello 0") -> TableNextColumn() -> Text("Hello 1") // OK
// TableNextColumn() -> Text("Hello 0") -> TableNextColumn() -> Text("Hello 1") // OK: TableNextColumn() automatically gets to next row!
// TableNextRow() -> Text("Hello 0") // Not OK! Missing TableSetColumnIndex() or TableNextColumn()! Text will not appear!
// --------------------------------------------------------------------------------------------------------
// - 5. Call EndTable()
IMGUI_API bool BeginTable(const char* str_id, int column, ImGuiTableFlags flags = 0, const ImVec2& outer_size = ImVec2(0.0f, 0.0f), float inner_width = 0.0f);
IMGUI_API void EndTable(); // only call EndTable() if BeginTable() returns true!
IMGUI_API void TableNextRow(ImGuiTableRowFlags row_flags = 0, float min_row_height = 0.0f); // append into the first cell of a new row.
IMGUI_API bool TableNextColumn(); // append into the next column (or first column of next row if currently in last column). Return true when column is visible.
IMGUI_API bool TableSetColumnIndex(int column_n); // append into the specified column. Return true when column is visible.
// Tables: Headers & Columns declaration
// - Use TableSetupColumn() to specify label, resizing policy, default width/weight, id, various other flags etc.
// - Use TableHeadersRow() to create a header row and automatically submit a TableHeader() for each column.
// Headers are required to perform: reordering, sorting, and opening the context menu.
// The context menu can also be made available in columns body using ImGuiTableFlags_ContextMenuInBody.
// - You may manually submit headers using TableNextRow() + TableHeader() calls, but this is only useful in
// some advanced use cases (e.g. adding custom widgets in header row).
// - Use TableSetupScrollFreeze() to lock columns/rows so they stay visible when scrolled.
IMGUI_API void TableSetupColumn(const char* label, ImGuiTableColumnFlags flags = 0, float init_width_or_weight = 0.0f, ImGuiID user_id = 0);
IMGUI_API void TableSetupScrollFreeze(int cols, int rows); // lock columns/rows so they stay visible when scrolled.
IMGUI_API void TableHeadersRow(); // submit all headers cells based on data provided to TableSetupColumn() + submit context menu
IMGUI_API void TableHeader(const char* label); // submit one header cell manually (rarely used)
// Tables: Sorting & Miscellaneous functions
// - Sorting: call TableGetSortSpecs() to retrieve latest sort specs for the table. NULL when not sorting.
// When 'sort_specs->SpecsDirty == true' you should sort your data. It will be true when sorting specs have
// changed since last call, or the first time. Make sure to set 'SpecsDirty = false' after sorting,
// else you may wastefully sort your data every frame!
// - Functions args 'int column_n' treat the default value of -1 as the same as passing the current column index.
IMGUI_API ImGuiTableSortSpecs* TableGetSortSpecs(); // get latest sort specs for the table (NULL if not sorting). Lifetime: don't hold on this pointer over multiple frames or past any subsequent call to BeginTable().
IMGUI_API int TableGetColumnCount(); // return number of columns (value passed to BeginTable)
IMGUI_API int TableGetColumnIndex(); // return current column index.
IMGUI_API int TableGetRowIndex(); // return current row index.
IMGUI_API const char* TableGetColumnName(int column_n = -1); // return "" if column didn't have a name declared by TableSetupColumn(). Pass -1 to use current column.
IMGUI_API ImGuiTableColumnFlags TableGetColumnFlags(int column_n = -1); // return column flags so you can query their Enabled/Visible/Sorted/Hovered status flags. Pass -1 to use current column.
IMGUI_API void TableSetColumnEnabled(int column_n, bool v);// change user accessible enabled/disabled state of a column. Set to false to hide the column. User can use the context menu to change this themselves (right-click in headers, or right-click in columns body with ImGuiTableFlags_ContextMenuInBody)
IMGUI_API void TableSetBgColor(ImGuiTableBgTarget target, ImU32 color, int column_n = -1); // change the color of a cell, row, or column. See ImGuiTableBgTarget_ flags for details.
// Legacy Columns API (prefer using Tables!)
// - You can also use SameLine(pos_x) to mimic simplified columns.
IMGUI_API void Columns(int count = 1, const char* id = NULL, bool border = true);
IMGUI_API void NextColumn(); // next column, defaults to current row or next row if the current row is finished
IMGUI_API int GetColumnIndex(); // get current column index
IMGUI_API float GetColumnWidth(int column_index = -1); // get column width (in pixels). pass -1 to use current column
IMGUI_API void SetColumnWidth(int column_index, float width); // set column width (in pixels). pass -1 to use current column
IMGUI_API float GetColumnOffset(int column_index = -1); // get position of column line (in pixels, from the left side of the contents region). pass -1 to use current column, otherwise 0..GetColumnsCount() inclusive. column 0 is typically 0.0f
IMGUI_API void SetColumnOffset(int column_index, float offset_x); // set position of column line (in pixels, from the left side of the contents region). pass -1 to use current column
IMGUI_API int GetColumnsCount();
// Tab Bars, Tabs
// - Note: Tabs are automatically created by the docking system (when in 'docking' branch). Use this to create tab bars/tabs yourself.
IMGUI_API bool BeginTabBar(const char* str_id, ImGuiTabBarFlags flags = 0); // create and append into a TabBar
IMGUI_API void EndTabBar(); // only call EndTabBar() if BeginTabBar() returns true!
IMGUI_API bool BeginTabItem(const char* label, bool* p_open = NULL, ImGuiTabItemFlags flags = 0); // create a Tab. Returns true if the Tab is selected.
IMGUI_API void EndTabItem(); // only call EndTabItem() if BeginTabItem() returns true!
IMGUI_API bool TabItemButton(const char* label, ImGuiTabItemFlags flags = 0); // create a Tab behaving like a button. return true when clicked. cannot be selected in the tab bar.
IMGUI_API void SetTabItemClosed(const char* tab_or_docked_window_label); // notify TabBar or Docking system of a closed tab/window ahead (useful to reduce visual flicker on reorderable tab bars). For tab-bar: call after BeginTabBar() and before Tab submissions. Otherwise call with a window name.
// Logging/Capture
// - All text output from the interface can be captured into tty/file/clipboard. By default, tree nodes are automatically opened during logging.
IMGUI_API void LogToTTY(int auto_open_depth = -1); // start logging to tty (stdout)
IMGUI_API void LogToFile(int auto_open_depth = -1, const char* filename = NULL); // start logging to file
IMGUI_API void LogToClipboard(int auto_open_depth = -1); // start logging to OS clipboard
IMGUI_API void LogFinish(); // stop logging (close file, etc.)
IMGUI_API void LogButtons(); // helper to display buttons for logging to tty/file/clipboard
IMGUI_API void LogText(const char* fmt, ...) IM_FMTARGS(1); // pass text data straight to log (without being displayed)
IMGUI_API void LogTextV(const char* fmt, va_list args) IM_FMTLIST(1);
// Drag and Drop
// - On source items, call BeginDragDropSource(), if it returns true also call SetDragDropPayload() + EndDragDropSource().
// - On target candidates, call BeginDragDropTarget(), if it returns true also call AcceptDragDropPayload() + EndDragDropTarget().
// - If you stop calling BeginDragDropSource() the payload is preserved however it won't have a preview tooltip (we currently display a fallback "..." tooltip, see #1725)
// - An item can be both drag source and drop target.
IMGUI_API bool BeginDragDropSource(ImGuiDragDropFlags flags = 0); // call after submitting an item which may be dragged. when this return true, you can call SetDragDropPayload() + EndDragDropSource()
IMGUI_API bool SetDragDropPayload(const char* type, const void* data, size_t sz, ImGuiCond cond = 0); // type is a user defined string of maximum 32 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui. Return true when payload has been accepted.
IMGUI_API void EndDragDropSource(); // only call EndDragDropSource() if BeginDragDropSource() returns true!
IMGUI_API bool BeginDragDropTarget(); // call after submitting an item that may receive a payload. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0); // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
IMGUI_API void EndDragDropTarget(); // only call EndDragDropTarget() if BeginDragDropTarget() returns true!
IMGUI_API const ImGuiPayload* GetDragDropPayload(); // peek directly into the current payload from anywhere. may return NULL. use ImGuiPayload::IsDataType() to test for the payload type.
// Disabling [BETA API]
// - Disable all user interactions and dim items visuals (applying style.DisabledAlpha over current colors)
// - Those can be nested but it cannot be used to enable an already disabled section (a single BeginDisabled(true) in the stack is enough to keep everything disabled)
// - BeginDisabled(false) essentially does nothing useful but is provided to facilitate use of boolean expressions. If you can avoid calling BeginDisabled(False)/EndDisabled() best to avoid it.
IMGUI_API void BeginDisabled(bool disabled = true);
IMGUI_API void EndDisabled();
// Clipping
// - Mouse hovering is affected by ImGui::PushClipRect() calls, unlike direct calls to ImDrawList::PushClipRect() which are render only.
IMGUI_API void PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect);
IMGUI_API void PopClipRect();
// Focus, Activation
// - Prefer using "SetItemDefaultFocus()" over "if (IsWindowAppearing()) SetScrollHereY()" when applicable to signify "this is the default item"
IMGUI_API void SetItemDefaultFocus(); // make last item the default focused item of a window.
IMGUI_API void SetKeyboardFocusHere(int offset = 0); // focus keyboard on the next widget. Use positive 'offset' to access sub components of a multiple component widget. Use -1 to access previous widget.
// Item/Widgets Utilities and Query Functions
// - Most of the functions are referring to the previous Item that has been submitted.
// - See Demo Window under "Widgets->Querying Status" for an interactive visualization of most of those functions.
IMGUI_API bool IsItemHovered(ImGuiHoveredFlags flags = 0); // is the last item hovered? (and usable, aka not blocked by a popup, etc.). See ImGuiHoveredFlags for more options.
IMGUI_API bool IsItemActive(); // is the last item active? (e.g. button being held, text field being edited. This will continuously return true while holding mouse button on an item. Items that don't interact will always return false)
IMGUI_API bool IsItemFocused(); // is the last item focused for keyboard/gamepad navigation?
IMGUI_API bool IsItemClicked(ImGuiMouseButton mouse_button = 0); // is the last item hovered and mouse clicked on? (**) == IsMouseClicked(mouse_button) && IsItemHovered()Important. (**) this is NOT equivalent to the behavior of e.g. Button(). Read comments in function definition.
IMGUI_API bool IsItemVisible(); // is the last item visible? (items may be out of sight because of clipping/scrolling)
IMGUI_API bool IsItemEdited(); // did the last item modify its underlying value this frame? or was pressed? This is generally the same as the "bool" return value of many widgets.
IMGUI_API bool IsItemActivated(); // was the last item just made active (item was previously inactive).
IMGUI_API bool IsItemDeactivated(); // was the last item just made inactive (item was previously active). Useful for Undo/Redo patterns with widgets that require continuous editing.
IMGUI_API bool IsItemDeactivatedAfterEdit(); // was the last item just made inactive and made a value change when it was active? (e.g. Slider/Drag moved). Useful for Undo/Redo patterns with widgets that require continuous editing. Note that you may get false positives (some widgets such as Combo()/ListBox()/Selectable() will return true even when clicking an already selected item).
IMGUI_API bool IsItemToggledOpen(); // was the last item open state toggled? set by TreeNode().
IMGUI_API bool IsAnyItemHovered(); // is any item hovered?
IMGUI_API bool IsAnyItemActive(); // is any item active?
IMGUI_API bool IsAnyItemFocused(); // is any item focused?
IMGUI_API ImGuiID GetItemID(); // get ID of last item (~~ often same ImGui::GetID(label) beforehand)
IMGUI_API ImVec2 GetItemRectMin(); // get upper-left bounding rectangle of the last item (screen space)
IMGUI_API ImVec2 GetItemRectMax(); // get lower-right bounding rectangle of the last item (screen space)
IMGUI_API ImVec2 GetItemRectSize(); // get size of last item
IMGUI_API void SetItemAllowOverlap(); // allow last item to be overlapped by a subsequent item. sometimes useful with invisible buttons, selectables, etc. to catch unused area.
// Viewports
// - Currently represents the Platform Window created by the application which is hosting our Dear ImGui windows.
// - In 'docking' branch with multi-viewport enabled, we extend this concept to have multiple active viewports.
// - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
IMGUI_API ImGuiViewport* GetMainViewport(); // return primary/default viewport. This can never be NULL.
// Background/Foreground Draw Lists
IMGUI_API ImDrawList* GetBackgroundDrawList(); // this draw list will be the first rendered one. Useful to quickly draw shapes/text behind dear imgui contents.
IMGUI_API ImDrawList* GetForegroundDrawList(); // this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
// Miscellaneous Utilities
IMGUI_API bool IsRectVisible(const ImVec2& size); // test if rectangle (of given size, starting from cursor position) is visible / not clipped.
IMGUI_API bool IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max); // test if rectangle (in screen space) is visible / not clipped. to perform coarse clipping on user's side.
IMGUI_API double GetTime(); // get global imgui time. incremented by io.DeltaTime every frame.
IMGUI_API int GetFrameCount(); // get global imgui frame count. incremented by 1 every frame.
IMGUI_API ImDrawListSharedData* GetDrawListSharedData(); // you may use this when creating your own ImDrawList instances.
IMGUI_API const char* GetStyleColorName(ImGuiCol idx); // get a string corresponding to the enum value (for display, saving, etc.).
IMGUI_API void SetStateStorage(ImGuiStorage* storage); // replace current window storage with our own (if you want to manipulate it yourself, typically clear subsection of it)
IMGUI_API ImGuiStorage* GetStateStorage();
IMGUI_API bool BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags flags = 0); // helper to create a child window / scrolling region that looks like a normal widget frame
IMGUI_API void EndChildFrame(); // always call EndChildFrame() regardless of BeginChildFrame() return values (which indicates a collapsed/clipped window)
// Text Utilities
IMGUI_API ImVec2 CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
// Color Utilities
IMGUI_API ImVec4 ColorConvertU32ToFloat4(ImU32 in);
IMGUI_API ImU32 ColorConvertFloat4ToU32(const ImVec4& in);
IMGUI_API void ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v);
IMGUI_API void ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b);
// Inputs Utilities: Keyboard/Mouse/Gamepad
// - the ImGuiKey enum contains all possible keyboard, mouse and gamepad inputs (e.g. ImGuiKey_A, ImGuiKey_MouseLeft, ImGuiKey_GamepadDpadUp...).
// - before v1.87, we used ImGuiKey to carry native/user indices as defined by each backends. About use of those legacy ImGuiKey values:
// - without IMGUI_DISABLE_OBSOLETE_KEYIO (legacy support): you can still use your legacy native/user indices (< 512) according to how your backend/engine stored them in io.KeysDown[], but need to cast them to ImGuiKey.
// - with IMGUI_DISABLE_OBSOLETE_KEYIO (this is the way forward): any use of ImGuiKey will assert with key < 512. GetKeyIndex() is pass-through and therefore deprecated (gone if IMGUI_DISABLE_OBSOLETE_KEYIO is defined).
IMGUI_API bool IsKeyDown(ImGuiKey key); // is key being held.
IMGUI_API bool IsKeyPressed(ImGuiKey key, bool repeat = true); // was key pressed (went from !Down to Down)? if repeat=true, uses io.KeyRepeatDelay / KeyRepeatRate
IMGUI_API bool IsKeyReleased(ImGuiKey key); // was key released (went from Down to !Down)?
IMGUI_API int GetKeyPressedAmount(ImGuiKey key, float repeat_delay, float rate); // uses provided repeat rate/delay. return a count, most often 0 or 1 but might be >1 if RepeatRate is small enough that DeltaTime > RepeatRate
IMGUI_API const char* GetKeyName(ImGuiKey key); // [DEBUG] returns English name of the key. Those names a provided for debugging purpose and are not meant to be saved persistently not compared.
IMGUI_API void SetNextFrameWantCaptureKeyboard(bool want_capture_keyboard); // Override io.WantCaptureKeyboard flag next frame (said flag is left for your application to handle, typically when true it instructs your app to ignore inputs). e.g. force capture keyboard when your widget is being hovered. This is equivalent to setting "io.WantCaptureKeyboard = want_capture_keyboard"; after the next NewFrame() call.
// Inputs Utilities: Mouse specific
// - To refer to a mouse button, you may use named enums in your code e.g. ImGuiMouseButton_Left, ImGuiMouseButton_Right.
// - You can also use regular integer: it is forever guaranteed that 0=Left, 1=Right, 2=Middle.
// - Dragging operations are only reported after mouse has moved a certain distance away from the initial clicking position (see 'lock_threshold' and 'io.MouseDraggingThreshold')
IMGUI_API bool IsMouseDown(ImGuiMouseButton button); // is mouse button held?
IMGUI_API bool IsMouseClicked(ImGuiMouseButton button, bool repeat = false); // did mouse button clicked? (went from !Down to Down). Same as GetMouseClickedCount() == 1.
IMGUI_API bool IsMouseReleased(ImGuiMouseButton button); // did mouse button released? (went from Down to !Down)
IMGUI_API bool IsMouseDoubleClicked(ImGuiMouseButton button); // did mouse button double-clicked? Same as GetMouseClickedCount() == 2. (note that a double-click will also report IsMouseClicked() == true)
IMGUI_API int GetMouseClickedCount(ImGuiMouseButton button); // return the number of successive mouse-clicks at the time where a click happen (otherwise 0).
IMGUI_API bool IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip = true);// is mouse hovering given bounding rect (in screen space). clipped by current clipping settings, but disregarding of other consideration of focus/window ordering/popup-block.
IMGUI_API bool IsMousePosValid(const ImVec2* mouse_pos = NULL); // by convention we use (-FLT_MAX,-FLT_MAX) to denote that there is no mouse available
IMGUI_API bool IsAnyMouseDown(); // [WILL OBSOLETE] is any mouse button held? This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid.
IMGUI_API ImVec2 GetMousePos(); // shortcut to ImGui::GetIO().MousePos provided by user, to be consistent with other calls
IMGUI_API ImVec2 GetMousePosOnOpeningCurrentPopup(); // retrieve mouse position at the time of opening popup we have BeginPopup() into (helper to avoid user backing that value themselves)
IMGUI_API bool IsMouseDragging(ImGuiMouseButton button, float lock_threshold = -1.0f); // is mouse dragging? (if lock_threshold < -1.0f, uses io.MouseDraggingThreshold)
IMGUI_API ImVec2 GetMouseDragDelta(ImGuiMouseButton button = 0, float lock_threshold = -1.0f); // return the delta from the initial clicking position while the mouse button is pressed or was just released. This is locked and return 0.0f until the mouse moves past a distance threshold at least once (if lock_threshold < -1.0f, uses io.MouseDraggingThreshold)
IMGUI_API void ResetMouseDragDelta(ImGuiMouseButton button = 0); //
IMGUI_API ImGuiMouseCursor GetMouseCursor(); // get desired mouse cursor shape. Important: reset in ImGui::NewFrame(), this is updated during the frame. valid before Render(). If you use software rendering by setting io.MouseDrawCursor ImGui will render those for you
IMGUI_API void SetMouseCursor(ImGuiMouseCursor cursor_type); // set desired mouse cursor shape
IMGUI_API void SetNextFrameWantCaptureMouse(bool want_capture_mouse); // Override io.WantCaptureMouse flag next frame (said flag is left for your application to handle, typical when true it instucts your app to ignore inputs). This is equivalent to setting "io.WantCaptureMouse = want_capture_mouse;" after the next NewFrame() call.
// Clipboard Utilities
// - Also see the LogToClipboard() function to capture GUI into clipboard, or easily output text data to the clipboard.
IMGUI_API const char* GetClipboardText();
IMGUI_API void SetClipboardText(const char* text);
// Settings/.Ini Utilities
// - The disk functions are automatically called if io.IniFilename != NULL (default is "imgui.ini").
// - Set io.IniFilename to NULL to load/save manually. Read io.WantSaveIniSettings description about handling .ini saving manually.
// - Important: default value "imgui.ini" is relative to current working dir! Most apps will want to lock this to an absolute path (e.g. same path as executables).
IMGUI_API void LoadIniSettingsFromDisk(const char* ini_filename); // call after CreateContext() and before the first call to NewFrame(). NewFrame() automatically calls LoadIniSettingsFromDisk(io.IniFilename).
IMGUI_API void LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size=0); // call after CreateContext() and before the first call to NewFrame() to provide .ini data from your own data source.
IMGUI_API void SaveIniSettingsToDisk(const char* ini_filename); // this is automatically called (if io.IniFilename is not empty) a few seconds after any modification that should be reflected in the .ini file (and also by DestroyContext).
IMGUI_API const char* SaveIniSettingsToMemory(size_t* out_ini_size = NULL); // return a zero-terminated string with the .ini data which you can save by your own mean. call when io.WantSaveIniSettings is set, then save data by your own mean and clear io.WantSaveIniSettings.
// Debug Utilities
IMGUI_API void DebugTextEncoding(const char* text);
IMGUI_API bool DebugCheckVersionAndDataLayout(const char* version_str, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_drawvert, size_t sz_drawidx); // This is called by IMGUI_CHECKVERSION() macro.
// Memory Allocators
// - Those functions are not reliant on the current context.
// - DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
IMGUI_API void SetAllocatorFunctions(ImGuiMemAllocFunc alloc_func, ImGuiMemFreeFunc free_func, void* user_data = NULL);
IMGUI_API void GetAllocatorFunctions(ImGuiMemAllocFunc* p_alloc_func, ImGuiMemFreeFunc* p_free_func, void** p_user_data);
IMGUI_API void* MemAlloc(size_t size);
IMGUI_API void MemFree(void* ptr);
} // namespace ImGui
//-----------------------------------------------------------------------------
// [SECTION] Flags & Enumerations
//-----------------------------------------------------------------------------
// Flags for ImGui::Begin()
// (Those are per-window flags. There are shared flags in ImGuiIO: io.ConfigWindowsResizeFromEdges and io.ConfigWindowsMoveFromTitleBarOnly)
enum ImGuiWindowFlags_
{
ImGuiWindowFlags_None = 0,
ImGuiWindowFlags_NoTitleBar = 1 << 0, // Disable title-bar
ImGuiWindowFlags_NoResize = 1 << 1, // Disable user resizing with the lower-right grip
ImGuiWindowFlags_NoMove = 1 << 2, // Disable user moving the window
ImGuiWindowFlags_NoScrollbar = 1 << 3, // Disable scrollbars (window can still scroll with mouse or programmatically)
ImGuiWindowFlags_NoScrollWithMouse = 1 << 4, // Disable user vertically scrolling with mouse wheel. On child window, mouse wheel will be forwarded to the parent unless NoScrollbar is also set.
ImGuiWindowFlags_NoCollapse = 1 << 5, // Disable user collapsing window by double-clicking on it. Also referred to as Window Menu Button (e.g. within a docking node).
ImGuiWindowFlags_AlwaysAutoResize = 1 << 6, // Resize every window to its content every frame
ImGuiWindowFlags_NoBackground = 1 << 7, // Disable drawing background color (WindowBg, etc.) and outside border. Similar as using SetNextWindowBgAlpha(0.0f).
ImGuiWindowFlags_NoSavedSettings = 1 << 8, // Never load/save settings in .ini file
ImGuiWindowFlags_NoMouseInputs = 1 << 9, // Disable catching mouse, hovering test with pass through.
ImGuiWindowFlags_MenuBar = 1 << 10, // Has a menu-bar
ImGuiWindowFlags_HorizontalScrollbar = 1 << 11, // Allow horizontal scrollbar to appear (off by default). You may use SetNextWindowContentSize(ImVec2(width,0.0f)); prior to calling Begin() to specify width. Read code in imgui_demo in the "Horizontal Scrolling" section.
ImGuiWindowFlags_NoFocusOnAppearing = 1 << 12, // Disable taking focus when transitioning from hidden to visible state
ImGuiWindowFlags_NoBringToFrontOnFocus = 1 << 13, // Disable bringing window to front when taking focus (e.g. clicking on it or programmatically giving it focus)
ImGuiWindowFlags_AlwaysVerticalScrollbar= 1 << 14, // Always show vertical scrollbar (even if ContentSize.y < Size.y)
ImGuiWindowFlags_AlwaysHorizontalScrollbar=1<< 15, // Always show horizontal scrollbar (even if ContentSize.x < Size.x)
ImGuiWindowFlags_AlwaysUseWindowPadding = 1 << 16, // Ensure child windows without border uses style.WindowPadding (ignored by default for non-bordered child windows, because more convenient)
ImGuiWindowFlags_NoNavInputs = 1 << 18, // No gamepad/keyboard navigation within the window
ImGuiWindowFlags_NoNavFocus = 1 << 19, // No focusing toward this window with gamepad/keyboard navigation (e.g. skipped by CTRL+TAB)
ImGuiWindowFlags_UnsavedDocument = 1 << 20, // Display a dot next to the title. When used in a tab/docking context, tab is selected when clicking the X + closure is not assumed (will wait for user to stop submitting the tab). Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
ImGuiWindowFlags_NoNav = ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
ImGuiWindowFlags_NoDecoration = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoCollapse,
ImGuiWindowFlags_NoInputs = ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
// [Internal]
ImGuiWindowFlags_NavFlattened = 1 << 23, // [BETA] On child window: allow gamepad/keyboard navigation to cross over parent border to this child or between sibling child windows.
ImGuiWindowFlags_ChildWindow = 1 << 24, // Don't use! For internal use by BeginChild()
ImGuiWindowFlags_Tooltip = 1 << 25, // Don't use! For internal use by BeginTooltip()
ImGuiWindowFlags_Popup = 1 << 26, // Don't use! For internal use by BeginPopup()
ImGuiWindowFlags_Modal = 1 << 27, // Don't use! For internal use by BeginPopupModal()
ImGuiWindowFlags_ChildMenu = 1 << 28, // Don't use! For internal use by BeginMenu()
};
// Flags for ImGui::InputText()
// (Those are per-item flags. There are shared flags in ImGuiIO: io.ConfigInputTextCursorBlink and io.ConfigInputTextEnterKeepActive)
enum ImGuiInputTextFlags_
{
ImGuiInputTextFlags_None = 0,
ImGuiInputTextFlags_CharsDecimal = 1 << 0, // Allow 0123456789.+-*/
ImGuiInputTextFlags_CharsHexadecimal = 1 << 1, // Allow 0123456789ABCDEFabcdef
ImGuiInputTextFlags_CharsUppercase = 1 << 2, // Turn a..z into A..Z
ImGuiInputTextFlags_CharsNoBlank = 1 << 3, // Filter out spaces, tabs
ImGuiInputTextFlags_AutoSelectAll = 1 << 4, // Select entire text when first taking mouse focus
ImGuiInputTextFlags_EnterReturnsTrue = 1 << 5, // Return 'true' when Enter is pressed (as opposed to every time the value was modified). Consider looking at the IsItemDeactivatedAfterEdit() function.
ImGuiInputTextFlags_CallbackCompletion = 1 << 6, // Callback on pressing TAB (for completion handling)
ImGuiInputTextFlags_CallbackHistory = 1 << 7, // Callback on pressing Up/Down arrows (for history handling)
ImGuiInputTextFlags_CallbackAlways = 1 << 8, // Callback on each iteration. User code may query cursor position, modify text buffer.
ImGuiInputTextFlags_CallbackCharFilter = 1 << 9, // Callback on character inputs to replace or discard them. Modify 'EventChar' to replace or discard, or return 1 in callback to discard.
ImGuiInputTextFlags_AllowTabInput = 1 << 10, // Pressing TAB input a '\t' character into the text field
ImGuiInputTextFlags_CtrlEnterForNewLine = 1 << 11, // In multi-line mode, unfocus with Enter, add new line with Ctrl+Enter (default is opposite: unfocus with Ctrl+Enter, add line with Enter).
ImGuiInputTextFlags_NoHorizontalScroll = 1 << 12, // Disable following the cursor horizontally
ImGuiInputTextFlags_AlwaysOverwrite = 1 << 13, // Overwrite mode
ImGuiInputTextFlags_ReadOnly = 1 << 14, // Read-only mode
ImGuiInputTextFlags_Password = 1 << 15, // Password mode, display all characters as '*'
ImGuiInputTextFlags_NoUndoRedo = 1 << 16, // Disable undo/redo. Note that input text owns the text data while active, if you want to provide your own undo/redo stack you need e.g. to call ClearActiveID().
ImGuiInputTextFlags_CharsScientific = 1 << 17, // Allow 0123456789.+-*/eE (Scientific notation input)
ImGuiInputTextFlags_CallbackResize = 1 << 18, // Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow. Notify when the string wants to be resized (for string types which hold a cache of their Size). You will be provided a new BufSize in the callback and NEED to honor it. (see misc/cpp/imgui_stdlib.h for an example of using this)
ImGuiInputTextFlags_CallbackEdit = 1 << 19, // Callback on any edit (note that InputText() already returns true on edit, the callback is useful mainly to manipulate the underlying buffer while focus is active)
ImGuiInputTextFlags_EscapeClearsAll = 1 << 20, // Escape key clears content if not empty, and deactivate otherwise (contrast to default behavior of Escape to revert)
// Obsolete names
//ImGuiInputTextFlags_AlwaysInsertMode = ImGuiInputTextFlags_AlwaysOverwrite // [renamed in 1.82] name was not matching behavior
};
// Flags for ImGui::TreeNodeEx(), ImGui::CollapsingHeader*()
enum ImGuiTreeNodeFlags_
{
ImGuiTreeNodeFlags_None = 0,
ImGuiTreeNodeFlags_Selected = 1 << 0, // Draw as selected
ImGuiTreeNodeFlags_Framed = 1 << 1, // Draw frame with background (e.g. for CollapsingHeader)
ImGuiTreeNodeFlags_AllowItemOverlap = 1 << 2, // Hit testing to allow subsequent widgets to overlap this one
ImGuiTreeNodeFlags_NoTreePushOnOpen = 1 << 3, // Don't do a TreePush() when open (e.g. for CollapsingHeader) = no extra indent nor pushing on ID stack
ImGuiTreeNodeFlags_NoAutoOpenOnLog = 1 << 4, // Don't automatically and temporarily open node when Logging is active (by default logging will automatically open tree nodes)
ImGuiTreeNodeFlags_DefaultOpen = 1 << 5, // Default node to be open
ImGuiTreeNodeFlags_OpenOnDoubleClick = 1 << 6, // Need double-click to open node
ImGuiTreeNodeFlags_OpenOnArrow = 1 << 7, // Only open when clicking on the arrow part. If ImGuiTreeNodeFlags_OpenOnDoubleClick is also set, single-click arrow or double-click all box to open.
ImGuiTreeNodeFlags_Leaf = 1 << 8, // No collapsing, no arrow (use as a convenience for leaf nodes).
ImGuiTreeNodeFlags_Bullet = 1 << 9, // Display a bullet instead of arrow
ImGuiTreeNodeFlags_FramePadding = 1 << 10, // Use FramePadding (even for an unframed text node) to vertically align text baseline to regular widget height. Equivalent to calling AlignTextToFramePadding().
ImGuiTreeNodeFlags_SpanAvailWidth = 1 << 11, // Extend hit box to the right-most edge, even if not framed. This is not the default in order to allow adding other items on the same line. In the future we may refactor the hit system to be front-to-back, allowing natural overlaps and then this can become the default.
ImGuiTreeNodeFlags_SpanFullWidth = 1 << 12, // Extend hit box to the left-most and right-most edges (bypass the indented area).
ImGuiTreeNodeFlags_NavLeftJumpsBackHere = 1 << 13, // (WIP) Nav: left direction may move to this TreeNode() from any of its child (items submitted between TreeNode and TreePop)
//ImGuiTreeNodeFlags_NoScrollOnOpen = 1 << 14, // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
ImGuiTreeNodeFlags_CollapsingHeader = ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_NoAutoOpenOnLog,
};
// Flags for OpenPopup*(), BeginPopupContext*(), IsPopupOpen() functions.
// - To be backward compatible with older API which took an 'int mouse_button = 1' argument, we need to treat
// small flags values as a mouse button index, so we encode the mouse button in the first few bits of the flags.
// It is therefore guaranteed to be legal to pass a mouse button index in ImGuiPopupFlags.
// - For the same reason, we exceptionally default the ImGuiPopupFlags argument of BeginPopupContextXXX functions to 1 instead of 0.
// IMPORTANT: because the default parameter is 1 (==ImGuiPopupFlags_MouseButtonRight), if you rely on the default parameter
// and want to use another flag, you need to pass in the ImGuiPopupFlags_MouseButtonRight flag explicitly.
// - Multiple buttons currently cannot be combined/or-ed in those functions (we could allow it later).
enum ImGuiPopupFlags_
{
ImGuiPopupFlags_None = 0,
ImGuiPopupFlags_MouseButtonLeft = 0, // For BeginPopupContext*(): open on Left Mouse release. Guaranteed to always be == 0 (same as ImGuiMouseButton_Left)
ImGuiPopupFlags_MouseButtonRight = 1, // For BeginPopupContext*(): open on Right Mouse release. Guaranteed to always be == 1 (same as ImGuiMouseButton_Right)
ImGuiPopupFlags_MouseButtonMiddle = 2, // For BeginPopupContext*(): open on Middle Mouse release. Guaranteed to always be == 2 (same as ImGuiMouseButton_Middle)
ImGuiPopupFlags_MouseButtonMask_ = 0x1F,
ImGuiPopupFlags_MouseButtonDefault_ = 1,
ImGuiPopupFlags_NoOpenOverExistingPopup = 1 << 5, // For OpenPopup*(), BeginPopupContext*(): don't open if there's already a popup at the same level of the popup stack
ImGuiPopupFlags_NoOpenOverItems = 1 << 6, // For BeginPopupContextWindow(): don't return true when hovering items, only when hovering empty space
ImGuiPopupFlags_AnyPopupId = 1 << 7, // For IsPopupOpen(): ignore the ImGuiID parameter and test for any popup.
ImGuiPopupFlags_AnyPopupLevel = 1 << 8, // For IsPopupOpen(): search/test at any level of the popup stack (default test in the current level)
ImGuiPopupFlags_AnyPopup = ImGuiPopupFlags_AnyPopupId | ImGuiPopupFlags_AnyPopupLevel,
};
// Flags for ImGui::Selectable()
enum ImGuiSelectableFlags_
{
ImGuiSelectableFlags_None = 0,
ImGuiSelectableFlags_DontClosePopups = 1 << 0, // Clicking this doesn't close parent popup window
ImGuiSelectableFlags_SpanAllColumns = 1 << 1, // Selectable frame can span all columns (text will still fit in current column)
ImGuiSelectableFlags_AllowDoubleClick = 1 << 2, // Generate press events on double clicks too
ImGuiSelectableFlags_Disabled = 1 << 3, // Cannot be selected, display grayed out text
ImGuiSelectableFlags_AllowItemOverlap = 1 << 4, // (WIP) Hit testing to allow subsequent widgets to overlap this one
};
// Flags for ImGui::BeginCombo()
enum ImGuiComboFlags_
{
ImGuiComboFlags_None = 0,
ImGuiComboFlags_PopupAlignLeft = 1 << 0, // Align the popup toward the left by default
ImGuiComboFlags_HeightSmall = 1 << 1, // Max ~4 items visible. Tip: If you want your combo popup to be a specific size you can use SetNextWindowSizeConstraints() prior to calling BeginCombo()
ImGuiComboFlags_HeightRegular = 1 << 2, // Max ~8 items visible (default)
ImGuiComboFlags_HeightLarge = 1 << 3, // Max ~20 items visible
ImGuiComboFlags_HeightLargest = 1 << 4, // As many fitting items as possible
ImGuiComboFlags_NoArrowButton = 1 << 5, // Display on the preview box without the square arrow button
ImGuiComboFlags_NoPreview = 1 << 6, // Display only a square arrow button
ImGuiComboFlags_HeightMask_ = ImGuiComboFlags_HeightSmall | ImGuiComboFlags_HeightRegular | ImGuiComboFlags_HeightLarge | ImGuiComboFlags_HeightLargest,
};
// Flags for ImGui::BeginTabBar()
enum ImGuiTabBarFlags_
{
ImGuiTabBarFlags_None = 0,
ImGuiTabBarFlags_Reorderable = 1 << 0, // Allow manually dragging tabs to re-order them + New tabs are appended at the end of list
ImGuiTabBarFlags_AutoSelectNewTabs = 1 << 1, // Automatically select new tabs when they appear
ImGuiTabBarFlags_TabListPopupButton = 1 << 2, // Disable buttons to open the tab list popup
ImGuiTabBarFlags_NoCloseWithMiddleMouseButton = 1 << 3, // Disable behavior of closing tabs (that are submitted with p_open != NULL) with middle mouse button. You can still repro this behavior on user's side with if (IsItemHovered() && IsMouseClicked(2)) *p_open = false.
ImGuiTabBarFlags_NoTabListScrollingButtons = 1 << 4, // Disable scrolling buttons (apply when fitting policy is ImGuiTabBarFlags_FittingPolicyScroll)
ImGuiTabBarFlags_NoTooltip = 1 << 5, // Disable tooltips when hovering a tab
ImGuiTabBarFlags_FittingPolicyResizeDown = 1 << 6, // Resize tabs when they don't fit
ImGuiTabBarFlags_FittingPolicyScroll = 1 << 7, // Add scroll buttons when tabs don't fit
ImGuiTabBarFlags_FittingPolicyMask_ = ImGuiTabBarFlags_FittingPolicyResizeDown | ImGuiTabBarFlags_FittingPolicyScroll,
ImGuiTabBarFlags_FittingPolicyDefault_ = ImGuiTabBarFlags_FittingPolicyResizeDown,
};
// Flags for ImGui::BeginTabItem()
enum ImGuiTabItemFlags_
{
ImGuiTabItemFlags_None = 0,
ImGuiTabItemFlags_UnsavedDocument = 1 << 0, // Display a dot next to the title + tab is selected when clicking the X + closure is not assumed (will wait for user to stop submitting the tab). Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
ImGuiTabItemFlags_SetSelected = 1 << 1, // Trigger flag to programmatically make the tab selected when calling BeginTabItem()
ImGuiTabItemFlags_NoCloseWithMiddleMouseButton = 1 << 2, // Disable behavior of closing tabs (that are submitted with p_open != NULL) with middle mouse button. You can still repro this behavior on user's side with if (IsItemHovered() && IsMouseClicked(2)) *p_open = false.
ImGuiTabItemFlags_NoPushId = 1 << 3, // Don't call PushID(tab->ID)/PopID() on BeginTabItem()/EndTabItem()
ImGuiTabItemFlags_NoTooltip = 1 << 4, // Disable tooltip for the given tab
ImGuiTabItemFlags_NoReorder = 1 << 5, // Disable reordering this tab or having another tab cross over this tab
ImGuiTabItemFlags_Leading = 1 << 6, // Enforce the tab position to the left of the tab bar (after the tab list popup button)
ImGuiTabItemFlags_Trailing = 1 << 7, // Enforce the tab position to the right of the tab bar (before the scrolling buttons)
};
// Flags for ImGui::BeginTable()
// - Important! Sizing policies have complex and subtle side effects, much more so than you would expect.
// Read comments/demos carefully + experiment with live demos to get acquainted with them.
// - The DEFAULT sizing policies are:
// - Default to ImGuiTableFlags_SizingFixedFit if ScrollX is on, or if host window has ImGuiWindowFlags_AlwaysAutoResize.
// - Default to ImGuiTableFlags_SizingStretchSame if ScrollX is off.
// - When ScrollX is off:
// - Table defaults to ImGuiTableFlags_SizingStretchSame -> all Columns defaults to ImGuiTableColumnFlags_WidthStretch with same weight.
// - Columns sizing policy allowed: Stretch (default), Fixed/Auto.
// - Fixed Columns (if any) will generally obtain their requested width (unless the table cannot fit them all).
// - Stretch Columns will share the remaining width according to their respective weight.
// - Mixed Fixed/Stretch columns is possible but has various side-effects on resizing behaviors.
// The typical use of mixing sizing policies is: any number of LEADING Fixed columns, followed by one or two TRAILING Stretch columns.
// (this is because the visible order of columns have subtle but necessary effects on how they react to manual resizing).
// - When ScrollX is on:
// - Table defaults to ImGuiTableFlags_SizingFixedFit -> all Columns defaults to ImGuiTableColumnFlags_WidthFixed
// - Columns sizing policy allowed: Fixed/Auto mostly.
// - Fixed Columns can be enlarged as needed. Table will show a horizontal scrollbar if needed.
// - When using auto-resizing (non-resizable) fixed columns, querying the content width to use item right-alignment e.g. SetNextItemWidth(-FLT_MIN) doesn't make sense, would create a feedback loop.
// - Using Stretch columns OFTEN DOES NOT MAKE SENSE if ScrollX is on, UNLESS you have specified a value for 'inner_width' in BeginTable().
// If you specify a value for 'inner_width' then effectively the scrolling space is known and Stretch or mixed Fixed/Stretch columns become meaningful again.
// - Read on documentation at the top of imgui_tables.cpp for details.
enum ImGuiTableFlags_
{
// Features
ImGuiTableFlags_None = 0,
ImGuiTableFlags_Resizable = 1 << 0, // Enable resizing columns.
ImGuiTableFlags_Reorderable = 1 << 1, // Enable reordering columns in header row (need calling TableSetupColumn() + TableHeadersRow() to display headers)
ImGuiTableFlags_Hideable = 1 << 2, // Enable hiding/disabling columns in context menu.
ImGuiTableFlags_Sortable = 1 << 3, // Enable sorting. Call TableGetSortSpecs() to obtain sort specs. Also see ImGuiTableFlags_SortMulti and ImGuiTableFlags_SortTristate.
ImGuiTableFlags_NoSavedSettings = 1 << 4, // Disable persisting columns order, width and sort settings in the .ini file.
ImGuiTableFlags_ContextMenuInBody = 1 << 5, // Right-click on columns body/contents will display table context menu. By default it is available in TableHeadersRow().
// Decorations
ImGuiTableFlags_RowBg = 1 << 6, // Set each RowBg color with ImGuiCol_TableRowBg or ImGuiCol_TableRowBgAlt (equivalent of calling TableSetBgColor with ImGuiTableBgFlags_RowBg0 on each row manually)
ImGuiTableFlags_BordersInnerH = 1 << 7, // Draw horizontal borders between rows.
ImGuiTableFlags_BordersOuterH = 1 << 8, // Draw horizontal borders at the top and bottom.
ImGuiTableFlags_BordersInnerV = 1 << 9, // Draw vertical borders between columns.
ImGuiTableFlags_BordersOuterV = 1 << 10, // Draw vertical borders on the left and right sides.
ImGuiTableFlags_BordersH = ImGuiTableFlags_BordersInnerH | ImGuiTableFlags_BordersOuterH, // Draw horizontal borders.
ImGuiTableFlags_BordersV = ImGuiTableFlags_BordersInnerV | ImGuiTableFlags_BordersOuterV, // Draw vertical borders.
ImGuiTableFlags_BordersInner = ImGuiTableFlags_BordersInnerV | ImGuiTableFlags_BordersInnerH, // Draw inner borders.
ImGuiTableFlags_BordersOuter = ImGuiTableFlags_BordersOuterV | ImGuiTableFlags_BordersOuterH, // Draw outer borders.
ImGuiTableFlags_Borders = ImGuiTableFlags_BordersInner | ImGuiTableFlags_BordersOuter, // Draw all borders.
ImGuiTableFlags_NoBordersInBody = 1 << 11, // [ALPHA] Disable vertical borders in columns Body (borders will always appear in Headers). -> May move to style
ImGuiTableFlags_NoBordersInBodyUntilResize = 1 << 12, // [ALPHA] Disable vertical borders in columns Body until hovered for resize (borders will always appear in Headers). -> May move to style
// Sizing Policy (read above for defaults)
ImGuiTableFlags_SizingFixedFit = 1 << 13, // Columns default to _WidthFixed or _WidthAuto (if resizable or not resizable), matching contents width.
ImGuiTableFlags_SizingFixedSame = 2 << 13, // Columns default to _WidthFixed or _WidthAuto (if resizable or not resizable), matching the maximum contents width of all columns. Implicitly enable ImGuiTableFlags_NoKeepColumnsVisible.
ImGuiTableFlags_SizingStretchProp = 3 << 13, // Columns default to _WidthStretch with default weights proportional to each columns contents widths.
ImGuiTableFlags_SizingStretchSame = 4 << 13, // Columns default to _WidthStretch with default weights all equal, unless overridden by TableSetupColumn().
// Sizing Extra Options
ImGuiTableFlags_NoHostExtendX = 1 << 16, // Make outer width auto-fit to columns, overriding outer_size.x value. Only available when ScrollX/ScrollY are disabled and Stretch columns are not used.
ImGuiTableFlags_NoHostExtendY = 1 << 17, // Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit). Only available when ScrollX/ScrollY are disabled. Data below the limit will be clipped and not visible.
ImGuiTableFlags_NoKeepColumnsVisible = 1 << 18, // Disable keeping column always minimally visible when ScrollX is off and table gets too small. Not recommended if columns are resizable.
ImGuiTableFlags_PreciseWidths = 1 << 19, // Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.
// Clipping
ImGuiTableFlags_NoClip = 1 << 20, // Disable clipping rectangle for every individual columns (reduce draw command count, items will be able to overflow into other columns). Generally incompatible with TableSetupScrollFreeze().
// Padding
ImGuiTableFlags_PadOuterX = 1 << 21, // Default if BordersOuterV is on. Enable outermost padding. Generally desirable if you have headers.
ImGuiTableFlags_NoPadOuterX = 1 << 22, // Default if BordersOuterV is off. Disable outermost padding.
ImGuiTableFlags_NoPadInnerX = 1 << 23, // Disable inner padding between columns (double inner padding if BordersOuterV is on, single inner padding if BordersOuterV is off).
// Scrolling
ImGuiTableFlags_ScrollX = 1 << 24, // Enable horizontal scrolling. Require 'outer_size' parameter of BeginTable() to specify the container size. Changes default sizing policy. Because this creates a child window, ScrollY is currently generally recommended when using ScrollX.
ImGuiTableFlags_ScrollY = 1 << 25, // Enable vertical scrolling. Require 'outer_size' parameter of BeginTable() to specify the container size.
// Sorting
ImGuiTableFlags_SortMulti = 1 << 26, // Hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).
ImGuiTableFlags_SortTristate = 1 << 27, // Allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).
// [Internal] Combinations and masks
ImGuiTableFlags_SizingMask_ = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_SizingFixedSame | ImGuiTableFlags_SizingStretchProp | ImGuiTableFlags_SizingStretchSame,
};
// Flags for ImGui::TableSetupColumn()
enum ImGuiTableColumnFlags_
{
// Input configuration flags
ImGuiTableColumnFlags_None = 0,
ImGuiTableColumnFlags_Disabled = 1 << 0, // Overriding/master disable flag: hide column, won't show in context menu (unlike calling TableSetColumnEnabled() which manipulates the user accessible state)
ImGuiTableColumnFlags_DefaultHide = 1 << 1, // Default as a hidden/disabled column.
ImGuiTableColumnFlags_DefaultSort = 1 << 2, // Default as a sorting column.
ImGuiTableColumnFlags_WidthStretch = 1 << 3, // Column will stretch. Preferable with horizontal scrolling disabled (default if table sizing policy is _SizingStretchSame or _SizingStretchProp).
ImGuiTableColumnFlags_WidthFixed = 1 << 4, // Column will not stretch. Preferable with horizontal scrolling enabled (default if table sizing policy is _SizingFixedFit and table is resizable).
ImGuiTableColumnFlags_NoResize = 1 << 5, // Disable manual resizing.
ImGuiTableColumnFlags_NoReorder = 1 << 6, // Disable manual reordering this column, this will also prevent other columns from crossing over this column.
ImGuiTableColumnFlags_NoHide = 1 << 7, // Disable ability to hide/disable this column.
ImGuiTableColumnFlags_NoClip = 1 << 8, // Disable clipping for this column (all NoClip columns will render in a same draw command).
ImGuiTableColumnFlags_NoSort = 1 << 9, // Disable ability to sort on this field (even if ImGuiTableFlags_Sortable is set on the table).
ImGuiTableColumnFlags_NoSortAscending = 1 << 10, // Disable ability to sort in the ascending direction.
ImGuiTableColumnFlags_NoSortDescending = 1 << 11, // Disable ability to sort in the descending direction.
ImGuiTableColumnFlags_NoHeaderLabel = 1 << 12, // TableHeadersRow() will not submit label for this column. Convenient for some small columns. Name will still appear in context menu.
ImGuiTableColumnFlags_NoHeaderWidth = 1 << 13, // Disable header text width contribution to automatic column width.
ImGuiTableColumnFlags_PreferSortAscending = 1 << 14, // Make the initial sort direction Ascending when first sorting on this column (default).
ImGuiTableColumnFlags_PreferSortDescending = 1 << 15, // Make the initial sort direction Descending when first sorting on this column.
ImGuiTableColumnFlags_IndentEnable = 1 << 16, // Use current Indent value when entering cell (default for column 0).
ImGuiTableColumnFlags_IndentDisable = 1 << 17, // Ignore current Indent value when entering cell (default for columns > 0). Indentation changes _within_ the cell will still be honored.
// Output status flags, read-only via TableGetColumnFlags()
ImGuiTableColumnFlags_IsEnabled = 1 << 24, // Status: is enabled == not hidden by user/api (referred to as "Hide" in _DefaultHide and _NoHide) flags.
ImGuiTableColumnFlags_IsVisible = 1 << 25, // Status: is visible == is enabled AND not clipped by scrolling.
ImGuiTableColumnFlags_IsSorted = 1 << 26, // Status: is currently part of the sort specs
ImGuiTableColumnFlags_IsHovered = 1 << 27, // Status: is hovered by mouse
// [Internal] Combinations and masks
ImGuiTableColumnFlags_WidthMask_ = ImGuiTableColumnFlags_WidthStretch | ImGuiTableColumnFlags_WidthFixed,
ImGuiTableColumnFlags_IndentMask_ = ImGuiTableColumnFlags_IndentEnable | ImGuiTableColumnFlags_IndentDisable,
ImGuiTableColumnFlags_StatusMask_ = ImGuiTableColumnFlags_IsEnabled | ImGuiTableColumnFlags_IsVisible | ImGuiTableColumnFlags_IsSorted | ImGuiTableColumnFlags_IsHovered,
ImGuiTableColumnFlags_NoDirectResize_ = 1 << 30, // [Internal] Disable user resizing this column directly (it may however we resized indirectly from its left edge)
};
// Flags for ImGui::TableNextRow()
enum ImGuiTableRowFlags_
{
ImGuiTableRowFlags_None = 0,
ImGuiTableRowFlags_Headers = 1 << 0, // Identify header row (set default background color + width of its contents accounted differently for auto column width)
};
// Enum for ImGui::TableSetBgColor()
// Background colors are rendering in 3 layers:
// - Layer 0: draw with RowBg0 color if set, otherwise draw with ColumnBg0 if set.
// - Layer 1: draw with RowBg1 color if set, otherwise draw with ColumnBg1 if set.
// - Layer 2: draw with CellBg color if set.
// The purpose of the two row/columns layers is to let you decide if a background color change should override or blend with the existing color.
// When using ImGuiTableFlags_RowBg on the table, each row has the RowBg0 color automatically set for odd/even rows.
// If you set the color of RowBg0 target, your color will override the existing RowBg0 color.
// If you set the color of RowBg1 or ColumnBg1 target, your color will blend over the RowBg0 color.
enum ImGuiTableBgTarget_
{
ImGuiTableBgTarget_None = 0,
ImGuiTableBgTarget_RowBg0 = 1, // Set row background color 0 (generally used for background, automatically set when ImGuiTableFlags_RowBg is used)
ImGuiTableBgTarget_RowBg1 = 2, // Set row background color 1 (generally used for selection marking)
ImGuiTableBgTarget_CellBg = 3, // Set cell background color (top-most color)
};
// Flags for ImGui::IsWindowFocused()
enum ImGuiFocusedFlags_
{
ImGuiFocusedFlags_None = 0,
ImGuiFocusedFlags_ChildWindows = 1 << 0, // Return true if any children of the window is focused
ImGuiFocusedFlags_RootWindow = 1 << 1, // Test from root window (top most parent of the current hierarchy)
ImGuiFocusedFlags_AnyWindow = 1 << 2, // Return true if any window is focused. Important: If you are trying to tell how to dispatch your low-level inputs, do NOT use this. Use 'io.WantCaptureMouse' instead! Please read the FAQ!
ImGuiFocusedFlags_NoPopupHierarchy = 1 << 3, // Do not consider popup hierarchy (do not treat popup emitter as parent of popup) (when used with _ChildWindows or _RootWindow)
//ImGuiFocusedFlags_DockHierarchy = 1 << 4, // Consider docking hierarchy (treat dockspace host as parent of docked window) (when used with _ChildWindows or _RootWindow)
ImGuiFocusedFlags_RootAndChildWindows = ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_ChildWindows,
};
// Flags for ImGui::IsItemHovered(), ImGui::IsWindowHovered()
// Note: if you are trying to check whether your mouse should be dispatched to Dear ImGui or to your app, you should use 'io.WantCaptureMouse' instead! Please read the FAQ!
// Note: windows with the ImGuiWindowFlags_NoInputs flag are ignored by IsWindowHovered() calls.
enum ImGuiHoveredFlags_
{
ImGuiHoveredFlags_None = 0, // Return true if directly over the item/window, not obstructed by another window, not obstructed by an active popup or modal blocking inputs under them.
ImGuiHoveredFlags_ChildWindows = 1 << 0, // IsWindowHovered() only: Return true if any children of the window is hovered
ImGuiHoveredFlags_RootWindow = 1 << 1, // IsWindowHovered() only: Test from root window (top most parent of the current hierarchy)
ImGuiHoveredFlags_AnyWindow = 1 << 2, // IsWindowHovered() only: Return true if any window is hovered
ImGuiHoveredFlags_NoPopupHierarchy = 1 << 3, // IsWindowHovered() only: Do not consider popup hierarchy (do not treat popup emitter as parent of popup) (when used with _ChildWindows or _RootWindow)
//ImGuiHoveredFlags_DockHierarchy = 1 << 4, // IsWindowHovered() only: Consider docking hierarchy (treat dockspace host as parent of docked window) (when used with _ChildWindows or _RootWindow)
ImGuiHoveredFlags_AllowWhenBlockedByPopup = 1 << 5, // Return true even if a popup window is normally blocking access to this item/window
//ImGuiHoveredFlags_AllowWhenBlockedByModal = 1 << 6, // Return true even if a modal popup window is normally blocking access to this item/window. FIXME-TODO: Unavailable yet.
ImGuiHoveredFlags_AllowWhenBlockedByActiveItem = 1 << 7, // Return true even if an active item is blocking access to this item/window. Useful for Drag and Drop patterns.
ImGuiHoveredFlags_AllowWhenOverlapped = 1 << 8, // IsItemHovered() only: Return true even if the position is obstructed or overlapped by another window
ImGuiHoveredFlags_AllowWhenDisabled = 1 << 9, // IsItemHovered() only: Return true even if the item is disabled
ImGuiHoveredFlags_NoNavOverride = 1 << 10, // Disable using gamepad/keyboard navigation state when active, always query mouse.
ImGuiHoveredFlags_RectOnly = ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenOverlapped,
ImGuiHoveredFlags_RootAndChildWindows = ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows,
// Hovering delays (for tooltips)
ImGuiHoveredFlags_DelayNormal = 1 << 11, // Return true after io.HoverDelayNormal elapsed (~0.30 sec)
ImGuiHoveredFlags_DelayShort = 1 << 12, // Return true after io.HoverDelayShort elapsed (~0.10 sec)
ImGuiHoveredFlags_NoSharedDelay = 1 << 13, // Disable shared delay system where moving from one item to the next keeps the previous timer for a short time (standard for tooltips with long delays)
};
// Flags for ImGui::BeginDragDropSource(), ImGui::AcceptDragDropPayload()
enum ImGuiDragDropFlags_
{
ImGuiDragDropFlags_None = 0,
// BeginDragDropSource() flags
ImGuiDragDropFlags_SourceNoPreviewTooltip = 1 << 0, // Disable preview tooltip. By default, a successful call to BeginDragDropSource opens a tooltip so you can display a preview or description of the source contents. This flag disables this behavior.
ImGuiDragDropFlags_SourceNoDisableHover = 1 << 1, // By default, when dragging we clear data so that IsItemHovered() will return false, to avoid subsequent user code submitting tooltips. This flag disables this behavior so you can still call IsItemHovered() on the source item.
ImGuiDragDropFlags_SourceNoHoldToOpenOthers = 1 << 2, // Disable the behavior that allows to open tree nodes and collapsing header by holding over them while dragging a source item.
ImGuiDragDropFlags_SourceAllowNullID = 1 << 3, // Allow items such as Text(), Image() that have no unique identifier to be used as drag source, by manufacturing a temporary identifier based on their window-relative position. This is extremely unusual within the dear imgui ecosystem and so we made it explicit.
ImGuiDragDropFlags_SourceExtern = 1 << 4, // External source (from outside of dear imgui), won't attempt to read current item/window info. Will always return true. Only one Extern source can be active simultaneously.
ImGuiDragDropFlags_SourceAutoExpirePayload = 1 << 5, // Automatically expire the payload if the source cease to be submitted (otherwise payloads are persisting while being dragged)
// AcceptDragDropPayload() flags
ImGuiDragDropFlags_AcceptBeforeDelivery = 1 << 10, // AcceptDragDropPayload() will returns true even before the mouse button is released. You can then call IsDelivery() to test if the payload needs to be delivered.
ImGuiDragDropFlags_AcceptNoDrawDefaultRect = 1 << 11, // Do not draw the default highlight rectangle when hovering over target.
ImGuiDragDropFlags_AcceptNoPreviewTooltip = 1 << 12, // Request hiding the BeginDragDropSource tooltip from the BeginDragDropTarget site.
ImGuiDragDropFlags_AcceptPeekOnly = ImGuiDragDropFlags_AcceptBeforeDelivery | ImGuiDragDropFlags_AcceptNoDrawDefaultRect, // For peeking ahead and inspecting the payload before delivery.
};
// Standard Drag and Drop payload types. You can define you own payload types using short strings. Types starting with '_' are defined by Dear ImGui.
#define IMGUI_PAYLOAD_TYPE_COLOR_3F "_COL3F" // float[3]: Standard type for colors, without alpha. User code may use this type.
#define IMGUI_PAYLOAD_TYPE_COLOR_4F "_COL4F" // float[4]: Standard type for colors. User code may use this type.
// A primary data type
enum ImGuiDataType_
{
ImGuiDataType_S8, // signed char / char (with sensible compilers)
ImGuiDataType_U8, // unsigned char
ImGuiDataType_S16, // short
ImGuiDataType_U16, // unsigned short
ImGuiDataType_S32, // int
ImGuiDataType_U32, // unsigned int
ImGuiDataType_S64, // long long / __int64
ImGuiDataType_U64, // unsigned long long / unsigned __int64
ImGuiDataType_Float, // float
ImGuiDataType_Double, // double
ImGuiDataType_COUNT
};
// A cardinal direction
enum ImGuiDir_
{
ImGuiDir_None = -1,
ImGuiDir_Left = 0,
ImGuiDir_Right = 1,
ImGuiDir_Up = 2,
ImGuiDir_Down = 3,
ImGuiDir_COUNT
};
// A sorting direction
enum ImGuiSortDirection_
{
ImGuiSortDirection_None = 0,
ImGuiSortDirection_Ascending = 1, // Ascending = 0->9, A->Z etc.
ImGuiSortDirection_Descending = 2 // Descending = 9->0, Z->A etc.
};
// A key identifier (ImGuiKey_XXX or ImGuiMod_XXX value): can represent Keyboard, Mouse and Gamepad values.
// All our named keys are >= 512. Keys value 0 to 511 are left unused as legacy native/opaque key values (< 1.87).
// Since >= 1.89 we increased typing (went from int to enum), some legacy code may need a cast to ImGuiKey.
// Read details about the 1.87 and 1.89 transition : https://github.com/ocornut/imgui/issues/4921
// Note that "Keys" related to physical keys and are not the same concept as input "Characters", the later are submitted via io.AddInputCharacter().
enum ImGuiKey : int
{
// Keyboard
ImGuiKey_None = 0,
ImGuiKey_Tab = 512, // == ImGuiKey_NamedKey_BEGIN
ImGuiKey_LeftArrow,
ImGuiKey_RightArrow,
ImGuiKey_UpArrow,
ImGuiKey_DownArrow,
ImGuiKey_PageUp,
ImGuiKey_PageDown,
ImGuiKey_Home,
ImGuiKey_End,
ImGuiKey_Insert,
ImGuiKey_Delete,
ImGuiKey_Backspace,
ImGuiKey_Space,
ImGuiKey_Enter,
ImGuiKey_Escape,
ImGuiKey_LeftCtrl, ImGuiKey_LeftShift, ImGuiKey_LeftAlt, ImGuiKey_LeftSuper,
ImGuiKey_RightCtrl, ImGuiKey_RightShift, ImGuiKey_RightAlt, ImGuiKey_RightSuper,
ImGuiKey_Menu,
ImGuiKey_0, ImGuiKey_1, ImGuiKey_2, ImGuiKey_3, ImGuiKey_4, ImGuiKey_5, ImGuiKey_6, ImGuiKey_7, ImGuiKey_8, ImGuiKey_9,
ImGuiKey_A, ImGuiKey_B, ImGuiKey_C, ImGuiKey_D, ImGuiKey_E, ImGuiKey_F, ImGuiKey_G, ImGuiKey_H, ImGuiKey_I, ImGuiKey_J,
ImGuiKey_K, ImGuiKey_L, ImGuiKey_M, ImGuiKey_N, ImGuiKey_O, ImGuiKey_P, ImGuiKey_Q, ImGuiKey_R, ImGuiKey_S, ImGuiKey_T,
ImGuiKey_U, ImGuiKey_V, ImGuiKey_W, ImGuiKey_X, ImGuiKey_Y, ImGuiKey_Z,
ImGuiKey_F1, ImGuiKey_F2, ImGuiKey_F3, ImGuiKey_F4, ImGuiKey_F5, ImGuiKey_F6,
ImGuiKey_F7, ImGuiKey_F8, ImGuiKey_F9, ImGuiKey_F10, ImGuiKey_F11, ImGuiKey_F12,
ImGuiKey_Apostrophe, // '
ImGuiKey_Comma, // ,
ImGuiKey_Minus, // -
ImGuiKey_Period, // .
ImGuiKey_Slash, // /
ImGuiKey_Semicolon, // ;
ImGuiKey_Equal, // =
ImGuiKey_LeftBracket, // [
ImGuiKey_Backslash, // \ (this text inhibit multiline comment caused by backslash)
ImGuiKey_RightBracket, // ]
ImGuiKey_GraveAccent, // `
ImGuiKey_CapsLock,
ImGuiKey_ScrollLock,
ImGuiKey_NumLock,
ImGuiKey_PrintScreen,
ImGuiKey_Pause,
ImGuiKey_Keypad0, ImGuiKey_Keypad1, ImGuiKey_Keypad2, ImGuiKey_Keypad3, ImGuiKey_Keypad4,
ImGuiKey_Keypad5, ImGuiKey_Keypad6, ImGuiKey_Keypad7, ImGuiKey_Keypad8, ImGuiKey_Keypad9,
ImGuiKey_KeypadDecimal,
ImGuiKey_KeypadDivide,
ImGuiKey_KeypadMultiply,
ImGuiKey_KeypadSubtract,
ImGuiKey_KeypadAdd,
ImGuiKey_KeypadEnter,
ImGuiKey_KeypadEqual,
// Gamepad (some of those are analog values, 0.0f to 1.0f) // NAVIGATION ACTION
// (download controller mapping PNG/PSD at http://dearimgui.org/controls_sheets)
ImGuiKey_GamepadStart, // Menu (Xbox) + (Switch) Start/Options (PS)
ImGuiKey_GamepadBack, // View (Xbox) - (Switch) Share (PS)
ImGuiKey_GamepadFaceLeft, // X (Xbox) Y (Switch) Square (PS) // Tap: Toggle Menu. Hold: Windowing mode (Focus/Move/Resize windows)
ImGuiKey_GamepadFaceRight, // B (Xbox) A (Switch) Circle (PS) // Cancel / Close / Exit
ImGuiKey_GamepadFaceUp, // Y (Xbox) X (Switch) Triangle (PS) // Text Input / On-screen Keyboard
ImGuiKey_GamepadFaceDown, // A (Xbox) B (Switch) Cross (PS) // Activate / Open / Toggle / Tweak
ImGuiKey_GamepadDpadLeft, // D-pad Left // Move / Tweak / Resize Window (in Windowing mode)
ImGuiKey_GamepadDpadRight, // D-pad Right // Move / Tweak / Resize Window (in Windowing mode)
ImGuiKey_GamepadDpadUp, // D-pad Up // Move / Tweak / Resize Window (in Windowing mode)
ImGuiKey_GamepadDpadDown, // D-pad Down // Move / Tweak / Resize Window (in Windowing mode)
ImGuiKey_GamepadL1, // L Bumper (Xbox) L (Switch) L1 (PS) // Tweak Slower / Focus Previous (in Windowing mode)
ImGuiKey_GamepadR1, // R Bumper (Xbox) R (Switch) R1 (PS) // Tweak Faster / Focus Next (in Windowing mode)
ImGuiKey_GamepadL2, // L Trig. (Xbox) ZL (Switch) L2 (PS) [Analog]
ImGuiKey_GamepadR2, // R Trig. (Xbox) ZR (Switch) R2 (PS) [Analog]
ImGuiKey_GamepadL3, // L Stick (Xbox) L3 (Switch) L3 (PS)
ImGuiKey_GamepadR3, // R Stick (Xbox) R3 (Switch) R3 (PS)
ImGuiKey_GamepadLStickLeft, // [Analog] // Move Window (in Windowing mode)
ImGuiKey_GamepadLStickRight, // [Analog] // Move Window (in Windowing mode)
ImGuiKey_GamepadLStickUp, // [Analog] // Move Window (in Windowing mode)
ImGuiKey_GamepadLStickDown, // [Analog] // Move Window (in Windowing mode)
ImGuiKey_GamepadRStickLeft, // [Analog]
ImGuiKey_GamepadRStickRight, // [Analog]
ImGuiKey_GamepadRStickUp, // [Analog]
ImGuiKey_GamepadRStickDown, // [Analog]
// Aliases: Mouse Buttons (auto-submitted from AddMouseButtonEvent() calls)
// - This is mirroring the data also written to io.MouseDown[], io.MouseWheel, in a format allowing them to be accessed via standard key API.
ImGuiKey_MouseLeft, ImGuiKey_MouseRight, ImGuiKey_MouseMiddle, ImGuiKey_MouseX1, ImGuiKey_MouseX2, ImGuiKey_MouseWheelX, ImGuiKey_MouseWheelY,
// [Internal] Reserved for mod storage
ImGuiKey_ReservedForModCtrl, ImGuiKey_ReservedForModShift, ImGuiKey_ReservedForModAlt, ImGuiKey_ReservedForModSuper,
ImGuiKey_COUNT,
// Keyboard Modifiers (explicitly submitted by backend via AddKeyEvent() calls)
// - This is mirroring the data also written to io.KeyCtrl, io.KeyShift, io.KeyAlt, io.KeySuper, in a format allowing
// them to be accessed via standard key API, allowing calls such as IsKeyPressed(), IsKeyReleased(), querying duration etc.
// - Code polling every key (e.g. an interface to detect a key press for input mapping) might want to ignore those
// and prefer using the real keys (e.g. ImGuiKey_LeftCtrl, ImGuiKey_RightCtrl instead of ImGuiMod_Ctrl).
// - In theory the value of keyboard modifiers should be roughly equivalent to a logical or of the equivalent left/right keys.
// In practice: it's complicated; mods are often provided from different sources. Keyboard layout, IME, sticky keys and
// backends tend to interfere and break that equivalence. The safer decision is to relay that ambiguity down to the end-user...
ImGuiMod_None = 0,
ImGuiMod_Ctrl = 1 << 12, // Ctrl
ImGuiMod_Shift = 1 << 13, // Shift
ImGuiMod_Alt = 1 << 14, // Option/Menu
ImGuiMod_Super = 1 << 15, // Cmd/Super/Windows
ImGuiMod_Shortcut = 1 << 11, // Alias for Ctrl (non-macOS) _or_ Super (macOS).
ImGuiMod_Mask_ = 0xF800, // 5-bits
// [Internal] Prior to 1.87 we required user to fill io.KeysDown[512] using their own native index + the io.KeyMap[] array.
// We are ditching this method but keeping a legacy path for user code doing e.g. IsKeyPressed(MY_NATIVE_KEY_CODE)
// If you need to iterate all keys (for e.g. an input mapper) you may use ImGuiKey_NamedKey_BEGIN..ImGuiKey_NamedKey_END.
ImGuiKey_NamedKey_BEGIN = 512,
ImGuiKey_NamedKey_END = ImGuiKey_COUNT,
ImGuiKey_NamedKey_COUNT = ImGuiKey_NamedKey_END - ImGuiKey_NamedKey_BEGIN,
#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
ImGuiKey_KeysData_SIZE = ImGuiKey_NamedKey_COUNT, // Size of KeysData[]: only hold named keys
ImGuiKey_KeysData_OFFSET = ImGuiKey_NamedKey_BEGIN, // Accesses to io.KeysData[] must use (key - ImGuiKey_KeysData_OFFSET) index.
#else
ImGuiKey_KeysData_SIZE = ImGuiKey_COUNT, // Size of KeysData[]: hold legacy 0..512 keycodes + named keys
ImGuiKey_KeysData_OFFSET = 0, // Accesses to io.KeysData[] must use (key - ImGuiKey_KeysData_OFFSET) index.
#endif
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
ImGuiKey_ModCtrl = ImGuiMod_Ctrl, ImGuiKey_ModShift = ImGuiMod_Shift, ImGuiKey_ModAlt = ImGuiMod_Alt, ImGuiKey_ModSuper = ImGuiMod_Super, // Renamed in 1.89
ImGuiKey_KeyPadEnter = ImGuiKey_KeypadEnter, // Renamed in 1.87
#endif
};
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
// OBSOLETED in 1.88 (from July 2022): ImGuiNavInput and io.NavInputs[].
// Official backends between 1.60 and 1.86: will keep working and feed gamepad inputs as long as IMGUI_DISABLE_OBSOLETE_KEYIO is not set.
// Custom backends: feed gamepad inputs via io.AddKeyEvent() and ImGuiKey_GamepadXXX enums.
enum ImGuiNavInput
{
ImGuiNavInput_Activate, ImGuiNavInput_Cancel, ImGuiNavInput_Input, ImGuiNavInput_Menu, ImGuiNavInput_DpadLeft, ImGuiNavInput_DpadRight, ImGuiNavInput_DpadUp, ImGuiNavInput_DpadDown,
ImGuiNavInput_LStickLeft, ImGuiNavInput_LStickRight, ImGuiNavInput_LStickUp, ImGuiNavInput_LStickDown, ImGuiNavInput_FocusPrev, ImGuiNavInput_FocusNext, ImGuiNavInput_TweakSlow, ImGuiNavInput_TweakFast,
ImGuiNavInput_COUNT,
};
#endif
// Configuration flags stored in io.ConfigFlags. Set by user/application.
enum ImGuiConfigFlags_
{
ImGuiConfigFlags_None = 0,
ImGuiConfigFlags_NavEnableKeyboard = 1 << 0, // Master keyboard navigation enable flag. Enable full Tabbing + directional arrows + space/enter to activate.
ImGuiConfigFlags_NavEnableGamepad = 1 << 1, // Master gamepad navigation enable flag. Backend also needs to set ImGuiBackendFlags_HasGamepad.
ImGuiConfigFlags_NavEnableSetMousePos = 1 << 2, // Instruct navigation to move the mouse cursor. May be useful on TV/console systems where moving a virtual mouse is awkward. Will update io.MousePos and set io.WantSetMousePos=true. If enabled you MUST honor io.WantSetMousePos requests in your backend, otherwise ImGui will react as if the mouse is jumping around back and forth.
ImGuiConfigFlags_NavNoCaptureKeyboard = 1 << 3, // Instruct navigation to not set the io.WantCaptureKeyboard flag when io.NavActive is set.
ImGuiConfigFlags_NoMouse = 1 << 4, // Instruct imgui to clear mouse position/buttons in NewFrame(). This allows ignoring the mouse information set by the backend.
ImGuiConfigFlags_NoMouseCursorChange = 1 << 5, // Instruct backend to not alter mouse cursor shape and visibility. Use if the backend cursor changes are interfering with yours and you don't want to use SetMouseCursor() to change mouse cursor. You may want to honor requests from imgui by reading GetMouseCursor() yourself instead.
// User storage (to allow your backend/engine to communicate to code that may be shared between multiple projects. Those flags are NOT used by core Dear ImGui)
ImGuiConfigFlags_IsSRGB = 1 << 20, // Application is SRGB-aware.
ImGuiConfigFlags_IsTouchScreen = 1 << 21, // Application is using a touch screen instead of a mouse.
};
// Backend capabilities flags stored in io.BackendFlags. Set by imgui_impl_xxx or custom backend.
enum ImGuiBackendFlags_
{
ImGuiBackendFlags_None = 0,
ImGuiBackendFlags_HasGamepad = 1 << 0, // Backend Platform supports gamepad and currently has one connected.
ImGuiBackendFlags_HasMouseCursors = 1 << 1, // Backend Platform supports honoring GetMouseCursor() value to change the OS cursor shape.
ImGuiBackendFlags_HasSetMousePos = 1 << 2, // Backend Platform supports io.WantSetMousePos requests to reposition the OS mouse position (only used if ImGuiConfigFlags_NavEnableSetMousePos is set).
ImGuiBackendFlags_RendererHasVtxOffset = 1 << 3, // Backend Renderer supports ImDrawCmd::VtxOffset. This enables output of large meshes (64K+ vertices) while still using 16-bit indices.
};
// Enumeration for PushStyleColor() / PopStyleColor()
enum ImGuiCol_
{
ImGuiCol_Text,
ImGuiCol_TextDisabled,
ImGuiCol_WindowBg, // Background of normal windows
ImGuiCol_ChildBg, // Background of child windows
ImGuiCol_PopupBg, // Background of popups, menus, tooltips windows
ImGuiCol_Border,
ImGuiCol_BorderShadow,
ImGuiCol_FrameBg, // Background of checkbox, radio button, plot, slider, text input
ImGuiCol_FrameBgHovered,
ImGuiCol_FrameBgActive,
ImGuiCol_TitleBg,
ImGuiCol_TitleBgActive,
ImGuiCol_TitleBgCollapsed,
ImGuiCol_MenuBarBg,
ImGuiCol_ScrollbarBg,
ImGuiCol_ScrollbarGrab,
ImGuiCol_ScrollbarGrabHovered,
ImGuiCol_ScrollbarGrabActive,
ImGuiCol_CheckMark,
ImGuiCol_SliderGrab,
ImGuiCol_SliderGrabActive,
ImGuiCol_Button,
ImGuiCol_ButtonHovered,
ImGuiCol_ButtonActive,
ImGuiCol_Header, // Header* colors are used for CollapsingHeader, TreeNode, Selectable, MenuItem
ImGuiCol_HeaderHovered,
ImGuiCol_HeaderActive,
ImGuiCol_Separator,
ImGuiCol_SeparatorHovered,
ImGuiCol_SeparatorActive,
ImGuiCol_ResizeGrip, // Resize grip in lower-right and lower-left corners of windows.
ImGuiCol_ResizeGripHovered,
ImGuiCol_ResizeGripActive,
ImGuiCol_Tab, // TabItem in a TabBar
ImGuiCol_TabHovered,
ImGuiCol_TabActive,
ImGuiCol_TabUnfocused,
ImGuiCol_TabUnfocusedActive,
ImGuiCol_PlotLines,
ImGuiCol_PlotLinesHovered,
ImGuiCol_PlotHistogram,
ImGuiCol_PlotHistogramHovered,
ImGuiCol_TableHeaderBg, // Table header background
ImGuiCol_TableBorderStrong, // Table outer and header borders (prefer using Alpha=1.0 here)
ImGuiCol_TableBorderLight, // Table inner borders (prefer using Alpha=1.0 here)
ImGuiCol_TableRowBg, // Table row background (even rows)
ImGuiCol_TableRowBgAlt, // Table row background (odd rows)
ImGuiCol_TextSelectedBg,
ImGuiCol_DragDropTarget, // Rectangle highlighting a drop target
ImGuiCol_NavHighlight, // Gamepad/keyboard: current highlighted item
ImGuiCol_NavWindowingHighlight, // Highlight window when using CTRL+TAB
ImGuiCol_NavWindowingDimBg, // Darken/colorize entire screen behind the CTRL+TAB window list, when active
ImGuiCol_ModalWindowDimBg, // Darken/colorize entire screen behind a modal window, when one is active
ImGuiCol_COUNT
};
// Enumeration for PushStyleVar() / PopStyleVar() to temporarily modify the ImGuiStyle structure.
// - The enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code.
// During initialization or between frames, feel free to just poke into ImGuiStyle directly.
// - Tip: Use your programming IDE navigation facilities on the names in the _second column_ below to find the actual members and their description.
// In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
// - When changing this enum, you need to update the associated internal table GStyleVarInfo[] accordingly. This is where we link enum values to members offset/type.
enum ImGuiStyleVar_
{
// Enum name --------------------- // Member in ImGuiStyle structure (see ImGuiStyle for descriptions)
ImGuiStyleVar_Alpha, // float Alpha
ImGuiStyleVar_DisabledAlpha, // float DisabledAlpha
ImGuiStyleVar_WindowPadding, // ImVec2 WindowPadding
ImGuiStyleVar_WindowRounding, // float WindowRounding
ImGuiStyleVar_WindowBorderSize, // float WindowBorderSize
ImGuiStyleVar_WindowMinSize, // ImVec2 WindowMinSize
ImGuiStyleVar_WindowTitleAlign, // ImVec2 WindowTitleAlign
ImGuiStyleVar_ChildRounding, // float ChildRounding
ImGuiStyleVar_ChildBorderSize, // float ChildBorderSize
ImGuiStyleVar_PopupRounding, // float PopupRounding
ImGuiStyleVar_PopupBorderSize, // float PopupBorderSize
ImGuiStyleVar_FramePadding, // ImVec2 FramePadding
ImGuiStyleVar_FrameRounding, // float FrameRounding
ImGuiStyleVar_FrameBorderSize, // float FrameBorderSize
ImGuiStyleVar_ItemSpacing, // ImVec2 ItemSpacing
ImGuiStyleVar_ItemInnerSpacing, // ImVec2 ItemInnerSpacing
ImGuiStyleVar_IndentSpacing, // float IndentSpacing
ImGuiStyleVar_CellPadding, // ImVec2 CellPadding
ImGuiStyleVar_ScrollbarSize, // float ScrollbarSize
ImGuiStyleVar_ScrollbarRounding, // float ScrollbarRounding
ImGuiStyleVar_GrabMinSize, // float GrabMinSize
ImGuiStyleVar_GrabRounding, // float GrabRounding
ImGuiStyleVar_TabRounding, // float TabRounding
ImGuiStyleVar_ButtonTextAlign, // ImVec2 ButtonTextAlign
ImGuiStyleVar_SelectableTextAlign, // ImVec2 SelectableTextAlign
ImGuiStyleVar_SeparatorTextBorderSize,// float SeparatorTextBorderSize
ImGuiStyleVar_SeparatorTextAlign, // ImVec2 SeparatorTextAlign
ImGuiStyleVar_SeparatorTextPadding,// ImVec2 SeparatorTextPadding
ImGuiStyleVar_COUNT
};
// Flags for InvisibleButton() [extended in imgui_internal.h]
enum ImGuiButtonFlags_
{
ImGuiButtonFlags_None = 0,
ImGuiButtonFlags_MouseButtonLeft = 1 << 0, // React on left mouse button (default)
ImGuiButtonFlags_MouseButtonRight = 1 << 1, // React on right mouse button
ImGuiButtonFlags_MouseButtonMiddle = 1 << 2, // React on center mouse button
// [Internal]
ImGuiButtonFlags_MouseButtonMask_ = ImGuiButtonFlags_MouseButtonLeft | ImGuiButtonFlags_MouseButtonRight | ImGuiButtonFlags_MouseButtonMiddle,
ImGuiButtonFlags_MouseButtonDefault_ = ImGuiButtonFlags_MouseButtonLeft,
};
// Flags for ColorEdit3() / ColorEdit4() / ColorPicker3() / ColorPicker4() / ColorButton()
enum ImGuiColorEditFlags_
{
ImGuiColorEditFlags_None = 0,
ImGuiColorEditFlags_NoAlpha = 1 << 1, // // ColorEdit, ColorPicker, ColorButton: ignore Alpha component (will only read 3 components from the input pointer).
ImGuiColorEditFlags_NoPicker = 1 << 2, // // ColorEdit: disable picker when clicking on color square.
ImGuiColorEditFlags_NoOptions = 1 << 3, // // ColorEdit: disable toggling options menu when right-clicking on inputs/small preview.
ImGuiColorEditFlags_NoSmallPreview = 1 << 4, // // ColorEdit, ColorPicker: disable color square preview next to the inputs. (e.g. to show only the inputs)
ImGuiColorEditFlags_NoInputs = 1 << 5, // // ColorEdit, ColorPicker: disable inputs sliders/text widgets (e.g. to show only the small preview color square).
ImGuiColorEditFlags_NoTooltip = 1 << 6, // // ColorEdit, ColorPicker, ColorButton: disable tooltip when hovering the preview.
ImGuiColorEditFlags_NoLabel = 1 << 7, // // ColorEdit, ColorPicker: disable display of inline text label (the label is still forwarded to the tooltip and picker).
ImGuiColorEditFlags_NoSidePreview = 1 << 8, // // ColorPicker: disable bigger color preview on right side of the picker, use small color square preview instead.
ImGuiColorEditFlags_NoDragDrop = 1 << 9, // // ColorEdit: disable drag and drop target. ColorButton: disable drag and drop source.
ImGuiColorEditFlags_NoBorder = 1 << 10, // // ColorButton: disable border (which is enforced by default)
// User Options (right-click on widget to change some of them).
ImGuiColorEditFlags_AlphaBar = 1 << 16, // // ColorEdit, ColorPicker: show vertical alpha bar/gradient in picker.
ImGuiColorEditFlags_AlphaPreview = 1 << 17, // // ColorEdit, ColorPicker, ColorButton: display preview as a transparent color over a checkerboard, instead of opaque.
ImGuiColorEditFlags_AlphaPreviewHalf= 1 << 18, // // ColorEdit, ColorPicker, ColorButton: display half opaque / half checkerboard, instead of opaque.
ImGuiColorEditFlags_HDR = 1 << 19, // // (WIP) ColorEdit: Currently only disable 0.0f..1.0f limits in RGBA edition (note: you probably want to use ImGuiColorEditFlags_Float flag as well).
ImGuiColorEditFlags_DisplayRGB = 1 << 20, // [Display] // ColorEdit: override _display_ type among RGB/HSV/Hex. ColorPicker: select any combination using one or more of RGB/HSV/Hex.
ImGuiColorEditFlags_DisplayHSV = 1 << 21, // [Display] // "
ImGuiColorEditFlags_DisplayHex = 1 << 22, // [Display] // "
ImGuiColorEditFlags_Uint8 = 1 << 23, // [DataType] // ColorEdit, ColorPicker, ColorButton: _display_ values formatted as 0..255.
ImGuiColorEditFlags_Float = 1 << 24, // [DataType] // ColorEdit, ColorPicker, ColorButton: _display_ values formatted as 0.0f..1.0f floats instead of 0..255 integers. No round-trip of value via integers.
ImGuiColorEditFlags_PickerHueBar = 1 << 25, // [Picker] // ColorPicker: bar for Hue, rectangle for Sat/Value.
ImGuiColorEditFlags_PickerHueWheel = 1 << 26, // [Picker] // ColorPicker: wheel for Hue, triangle for Sat/Value.
ImGuiColorEditFlags_InputRGB = 1 << 27, // [Input] // ColorEdit, ColorPicker: input and output data in RGB format.
ImGuiColorEditFlags_InputHSV = 1 << 28, // [Input] // ColorEdit, ColorPicker: input and output data in HSV format.
// Defaults Options. You can set application defaults using SetColorEditOptions(). The intent is that you probably don't want to
// override them in most of your calls. Let the user choose via the option menu and/or call SetColorEditOptions() once during startup.
ImGuiColorEditFlags_DefaultOptions_ = ImGuiColorEditFlags_Uint8 | ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_InputRGB | ImGuiColorEditFlags_PickerHueBar,
// [Internal] Masks
ImGuiColorEditFlags_DisplayMask_ = ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_DisplayHSV | ImGuiColorEditFlags_DisplayHex,
ImGuiColorEditFlags_DataTypeMask_ = ImGuiColorEditFlags_Uint8 | ImGuiColorEditFlags_Float,
ImGuiColorEditFlags_PickerMask_ = ImGuiColorEditFlags_PickerHueWheel | ImGuiColorEditFlags_PickerHueBar,
ImGuiColorEditFlags_InputMask_ = ImGuiColorEditFlags_InputRGB | ImGuiColorEditFlags_InputHSV,
// Obsolete names
//ImGuiColorEditFlags_RGB = ImGuiColorEditFlags_DisplayRGB, ImGuiColorEditFlags_HSV = ImGuiColorEditFlags_DisplayHSV, ImGuiColorEditFlags_HEX = ImGuiColorEditFlags_DisplayHex // [renamed in 1.69]
};
// Flags for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
// We use the same sets of flags for DragXXX() and SliderXXX() functions as the features are the same and it makes it easier to swap them.
// (Those are per-item flags. There are shared flags in ImGuiIO: io.ConfigDragClickToInputText)
enum ImGuiSliderFlags_
{
ImGuiSliderFlags_None = 0,
ImGuiSliderFlags_AlwaysClamp = 1 << 4, // Clamp value to min/max bounds when input manually with CTRL+Click. By default CTRL+Click allows going out of bounds.
ImGuiSliderFlags_Logarithmic = 1 << 5, // Make the widget logarithmic (linear otherwise). Consider using ImGuiSliderFlags_NoRoundToFormat with this if using a format-string with small amount of digits.
ImGuiSliderFlags_NoRoundToFormat = 1 << 6, // Disable rounding underlying value to match precision of the display format string (e.g. %.3f values are rounded to those 3 digits)
ImGuiSliderFlags_NoInput = 1 << 7, // Disable CTRL+Click or Enter key allowing to input text directly into the widget
ImGuiSliderFlags_InvalidMask_ = 0x7000000F, // [Internal] We treat using those bits as being potentially a 'float power' argument from the previous API that has got miscast to this enum, and will trigger an assert if needed.
// Obsolete names
//ImGuiSliderFlags_ClampOnInput = ImGuiSliderFlags_AlwaysClamp, // [renamed in 1.79]
};
// Identify a mouse button.
// Those values are guaranteed to be stable and we frequently use 0/1 directly. Named enums provided for convenience.
enum ImGuiMouseButton_
{
ImGuiMouseButton_Left = 0,
ImGuiMouseButton_Right = 1,
ImGuiMouseButton_Middle = 2,
ImGuiMouseButton_COUNT = 5
};
// Enumeration for GetMouseCursor()
// User code may request backend to display given cursor by calling SetMouseCursor(), which is why we have some cursors that are marked unused here
enum ImGuiMouseCursor_
{
ImGuiMouseCursor_None = -1,
ImGuiMouseCursor_Arrow = 0,
ImGuiMouseCursor_TextInput, // When hovering over InputText, etc.
ImGuiMouseCursor_ResizeAll, // (Unused by Dear ImGui functions)
ImGuiMouseCursor_ResizeNS, // When hovering over a horizontal border
ImGuiMouseCursor_ResizeEW, // When hovering over a vertical border or a column
ImGuiMouseCursor_ResizeNESW, // When hovering over the bottom-left corner of a window
ImGuiMouseCursor_ResizeNWSE, // When hovering over the bottom-right corner of a window
ImGuiMouseCursor_Hand, // (Unused by Dear ImGui functions. Use for e.g. hyperlinks)
ImGuiMouseCursor_NotAllowed, // When hovering something with disallowed interaction. Usually a crossed circle.
ImGuiMouseCursor_COUNT
};
// Enumeration for ImGui::SetWindow***(), SetNextWindow***(), SetNextItem***() functions
// Represent a condition.
// Important: Treat as a regular enum! Do NOT combine multiple values using binary operators! All the functions above treat 0 as a shortcut to ImGuiCond_Always.
enum ImGuiCond_
{
ImGuiCond_None = 0, // No condition (always set the variable), same as _Always
ImGuiCond_Always = 1 << 0, // No condition (always set the variable), same as _None
ImGuiCond_Once = 1 << 1, // Set the variable once per runtime session (only the first call will succeed)
ImGuiCond_FirstUseEver = 1 << 2, // Set the variable if the object/window has no persistently saved data (no entry in .ini file)
ImGuiCond_Appearing = 1 << 3, // Set the variable if the object/window is appearing after being hidden/inactive (or the first time)
};
//-----------------------------------------------------------------------------
// [SECTION] Helpers: Memory allocations macros, ImVector<>
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// IM_MALLOC(), IM_FREE(), IM_NEW(), IM_PLACEMENT_NEW(), IM_DELETE()
// We call C++ constructor on own allocated memory via the placement "new(ptr) Type()" syntax.
// Defining a custom placement new() with a custom parameter allows us to bypass including <new> which on some platforms complains when user has disabled exceptions.
//-----------------------------------------------------------------------------
struct ImNewWrapper {};
inline void* operator new(size_t, ImNewWrapper, void* ptr) { return ptr; }
inline void operator delete(void*, ImNewWrapper, void*) {} // This is only required so we can use the symmetrical new()
#define IM_ALLOC(_SIZE) ImGui::MemAlloc(_SIZE)
#define IM_FREE(_PTR) ImGui::MemFree(_PTR)
#define IM_PLACEMENT_NEW(_PTR) new(ImNewWrapper(), _PTR)
#define IM_NEW(_TYPE) new(ImNewWrapper(), ImGui::MemAlloc(sizeof(_TYPE))) _TYPE
template<typename T> void IM_DELETE(T* p) { if (p) { p->~T(); ImGui::MemFree(p); } }
//-----------------------------------------------------------------------------
// ImVector<>
// Lightweight std::vector<>-like class to avoid dragging dependencies (also, some implementations of STL with debug enabled are absurdly slow, we bypass it so our code runs fast in debug).
//-----------------------------------------------------------------------------
// - You generally do NOT need to care or use this ever. But we need to make it available in imgui.h because some of our public structures are relying on it.
// - We use std-like naming convention here, which is a little unusual for this codebase.
// - Important: clear() frees memory, resize(0) keep the allocated buffer. We use resize(0) a lot to intentionally recycle allocated buffers across frames and amortize our costs.
// - Important: our implementation does NOT call C++ constructors/destructors, we treat everything as raw data! This is intentional but be extra mindful of that,
// Do NOT use this class as a std::vector replacement in your own code! Many of the structures used by dear imgui can be safely initialized by a zero-memset.
//-----------------------------------------------------------------------------
IM_MSVC_RUNTIME_CHECKS_OFF
template<typename T>
struct ImVector
{
int Size;
int Capacity;
T* Data;
// Provide standard typedefs but we don't use them ourselves.
typedef T value_type;
typedef value_type* iterator;
typedef const value_type* const_iterator;
// Constructors, destructor
inline ImVector() { Size = Capacity = 0; Data = NULL; }
inline ImVector(const ImVector<T>& src) { Size = Capacity = 0; Data = NULL; operator=(src); }
inline ImVector<T>& operator=(const ImVector<T>& src) { clear(); resize(src.Size); if (src.Data) memcpy(Data, src.Data, (size_t)Size * sizeof(T)); return *this; }
inline ~ImVector() { if (Data) IM_FREE(Data); } // Important: does not destruct anything
inline void clear() { if (Data) { Size = Capacity = 0; IM_FREE(Data); Data = NULL; } } // Important: does not destruct anything
inline void clear_delete() { for (int n = 0; n < Size; n++) IM_DELETE(Data[n]); clear(); } // Important: never called automatically! always explicit.
inline void clear_destruct() { for (int n = 0; n < Size; n++) Data[n].~T(); clear(); } // Important: never called automatically! always explicit.
inline bool empty() const { return Size == 0; }
inline int size() const { return Size; }
inline int size_in_bytes() const { return Size * (int)sizeof(T); }
inline int max_size() const { return 0x7FFFFFFF / (int)sizeof(T); }
inline int capacity() const { return Capacity; }
inline T& operator[](int i) { IM_ASSERT(i >= 0 && i < Size); return Data[i]; }
inline const T& operator[](int i) const { IM_ASSERT(i >= 0 && i < Size); return Data[i]; }
inline T* begin() { return Data; }
inline const T* begin() const { return Data; }
inline T* end() { return Data + Size; }
inline const T* end() const { return Data + Size; }
inline T& front() { IM_ASSERT(Size > 0); return Data[0]; }
inline const T& front() const { IM_ASSERT(Size > 0); return Data[0]; }
inline T& back() { IM_ASSERT(Size > 0); return Data[Size - 1]; }
inline const T& back() const { IM_ASSERT(Size > 0); return Data[Size - 1]; }
inline void swap(ImVector<T>& rhs) { int rhs_size = rhs.Size; rhs.Size = Size; Size = rhs_size; int rhs_cap = rhs.Capacity; rhs.Capacity = Capacity; Capacity = rhs_cap; T* rhs_data = rhs.Data; rhs.Data = Data; Data = rhs_data; }
inline int _grow_capacity(int sz) const { int new_capacity = Capacity ? (Capacity + Capacity / 2) : 8; return new_capacity > sz ? new_capacity : sz; }
inline void resize(int new_size) { if (new_size > Capacity) reserve(_grow_capacity(new_size)); Size = new_size; }
inline void resize(int new_size, const T& v) { if (new_size > Capacity) reserve(_grow_capacity(new_size)); if (new_size > Size) for (int n = Size; n < new_size; n++) memcpy(&Data[n], &v, sizeof(v)); Size = new_size; }
inline void shrink(int new_size) { IM_ASSERT(new_size <= Size); Size = new_size; } // Resize a vector to a smaller size, guaranteed not to cause a reallocation
inline void reserve(int new_capacity) { if (new_capacity <= Capacity) return; T* new_data = (T*)IM_ALLOC((size_t)new_capacity * sizeof(T)); if (Data) { memcpy(new_data, Data, (size_t)Size * sizeof(T)); IM_FREE(Data); } Data = new_data; Capacity = new_capacity; }
inline void reserve_discard(int new_capacity) { if (new_capacity <= Capacity) return; if (Data) IM_FREE(Data); Data = (T*)IM_ALLOC((size_t)new_capacity * sizeof(T)); Capacity = new_capacity; }
// NB: It is illegal to call push_back/push_front/insert with a reference pointing inside the ImVector data itself! e.g. v.push_back(v[10]) is forbidden.
inline void push_back(const T& v) { if (Size == Capacity) reserve(_grow_capacity(Size + 1)); memcpy(&Data[Size], &v, sizeof(v)); Size++; }
inline void pop_back() { IM_ASSERT(Size > 0); Size--; }
inline void push_front(const T& v) { if (Size == 0) push_back(v); else insert(Data, v); }
inline T* erase(const T* it) { IM_ASSERT(it >= Data && it < Data + Size); const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + 1, ((size_t)Size - (size_t)off - 1) * sizeof(T)); Size--; return Data + off; }
inline T* erase(const T* it, const T* it_last){ IM_ASSERT(it >= Data && it < Data + Size && it_last >= it && it_last <= Data + Size); const ptrdiff_t count = it_last - it; const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + count, ((size_t)Size - (size_t)off - (size_t)count) * sizeof(T)); Size -= (int)count; return Data + off; }
inline T* erase_unsorted(const T* it) { IM_ASSERT(it >= Data && it < Data + Size); const ptrdiff_t off = it - Data; if (it < Data + Size - 1) memcpy(Data + off, Data + Size - 1, sizeof(T)); Size--; return Data + off; }
inline T* insert(const T* it, const T& v) { IM_ASSERT(it >= Data && it <= Data + Size); const ptrdiff_t off = it - Data; if (Size == Capacity) reserve(_grow_capacity(Size + 1)); if (off < (int)Size) memmove(Data + off + 1, Data + off, ((size_t)Size - (size_t)off) * sizeof(T)); memcpy(&Data[off], &v, sizeof(v)); Size++; return Data + off; }
inline bool contains(const T& v) const { const T* data = Data; const T* data_end = Data + Size; while (data < data_end) if (*data++ == v) return true; return false; }
inline T* find(const T& v) { T* data = Data; const T* data_end = Data + Size; while (data < data_end) if (*data == v) break; else ++data; return data; }
inline const T* find(const T& v) const { const T* data = Data; const T* data_end = Data + Size; while (data < data_end) if (*data == v) break; else ++data; return data; }
inline bool find_erase(const T& v) { const T* it = find(v); if (it < Data + Size) { erase(it); return true; } return false; }
inline bool find_erase_unsorted(const T& v) { const T* it = find(v); if (it < Data + Size) { erase_unsorted(it); return true; } return false; }
inline int index_from_ptr(const T* it) const { IM_ASSERT(it >= Data && it < Data + Size); const ptrdiff_t off = it - Data; return (int)off; }
};
IM_MSVC_RUNTIME_CHECKS_RESTORE
//-----------------------------------------------------------------------------
// [SECTION] ImGuiStyle
//-----------------------------------------------------------------------------
// You may modify the ImGui::GetStyle() main instance during initialization and before NewFrame().
// During the frame, use ImGui::PushStyleVar(ImGuiStyleVar_XXXX)/PopStyleVar() to alter the main style values,
// and ImGui::PushStyleColor(ImGuiCol_XXX)/PopStyleColor() for colors.
//-----------------------------------------------------------------------------
struct ImGuiStyle
{
float Alpha; // Global alpha applies to everything in Dear ImGui.
float DisabledAlpha; // Additional alpha multiplier applied by BeginDisabled(). Multiply over current value of Alpha.
ImVec2 WindowPadding; // Padding within a window.
float WindowRounding; // Radius of window corners rounding. Set to 0.0f to have rectangular windows. Large values tend to lead to variety of artifacts and are not recommended.
float WindowBorderSize; // Thickness of border around windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
ImVec2 WindowMinSize; // Minimum window size. This is a global setting. If you want to constrain individual windows, use SetNextWindowSizeConstraints().
ImVec2 WindowTitleAlign; // Alignment for title bar text. Defaults to (0.0f,0.5f) for left-aligned,vertically centered.
ImGuiDir WindowMenuButtonPosition; // Side of the collapsing/docking button in the title bar (None/Left/Right). Defaults to ImGuiDir_Left.
float ChildRounding; // Radius of child window corners rounding. Set to 0.0f to have rectangular windows.
float ChildBorderSize; // Thickness of border around child windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
float PopupRounding; // Radius of popup window corners rounding. (Note that tooltip windows use WindowRounding)
float PopupBorderSize; // Thickness of border around popup/tooltip windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
ImVec2 FramePadding; // Padding within a framed rectangle (used by most widgets).
float FrameRounding; // Radius of frame corners rounding. Set to 0.0f to have rectangular frame (used by most widgets).
float FrameBorderSize; // Thickness of border around frames. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
ImVec2 ItemSpacing; // Horizontal and vertical spacing between widgets/lines.
ImVec2 ItemInnerSpacing; // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label).
ImVec2 CellPadding; // Padding within a table cell
ImVec2 TouchExtraPadding; // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
float IndentSpacing; // Horizontal indentation when e.g. entering a tree node. Generally == (FontSize + FramePadding.x*2).
float ColumnsMinSpacing; // Minimum horizontal spacing between two columns. Preferably > (FramePadding.x + 1).
float ScrollbarSize; // Width of the vertical scrollbar, Height of the horizontal scrollbar.
float ScrollbarRounding; // Radius of grab corners for scrollbar.
float GrabMinSize; // Minimum width/height of a grab box for slider/scrollbar.
float GrabRounding; // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
float LogSliderDeadzone; // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
float TabRounding; // Radius of upper corners of a tab. Set to 0.0f to have rectangular tabs.
float TabBorderSize; // Thickness of border around tabs.
float TabMinWidthForCloseButton; // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
ImGuiDir ColorButtonPosition; // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
ImVec2 ButtonTextAlign; // Alignment of button text when button is larger than text. Defaults to (0.5f, 0.5f) (centered).
ImVec2 SelectableTextAlign; // Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
float SeparatorTextBorderSize; // Thickkness of border in SeparatorText()
ImVec2 SeparatorTextAlign; // Alignment of text within the separator. Defaults to (0.0f, 0.5f) (left aligned, center).
ImVec2 SeparatorTextPadding; // Horizontal offset of text from each edge of the separator + spacing on other axis. Generally small values. .y is recommended to be == FramePadding.y.
ImVec2 DisplayWindowPadding; // Window position are clamped to be visible within the display area or monitors by at least this amount. Only applies to regular windows.
ImVec2 DisplaySafeAreaPadding; // If you cannot see the edges of your screen (e.g. on a TV) increase the safe area padding. Apply to popups/tooltips as well regular windows. NB: Prefer configuring your TV sets correctly!
float MouseCursorScale; // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
bool AntiAliasedLines; // Enable anti-aliased lines/borders. Disable if you are really tight on CPU/GPU. Latched at the beginning of the frame (copied to ImDrawList).
bool AntiAliasedLinesUseTex; // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering (NOT point/nearest filtering). Latched at the beginning of the frame (copied to ImDrawList).
bool AntiAliasedFill; // Enable anti-aliased edges around filled shapes (rounded rectangles, circles, etc.). Disable if you are really tight on CPU/GPU. Latched at the beginning of the frame (copied to ImDrawList).
float CurveTessellationTol; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
float CircleTessellationMaxError; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
ImVec4 Colors[ImGuiCol_COUNT];
IMGUI_API ImGuiStyle();
IMGUI_API void ScaleAllSizes(float scale_factor);
};
//-----------------------------------------------------------------------------
// [SECTION] ImGuiIO
//-----------------------------------------------------------------------------
// Communicate most settings and inputs/outputs to Dear ImGui using this structure.
// Access via ImGui::GetIO(). Read 'Programmer guide' section in .cpp file for general usage.
//-----------------------------------------------------------------------------
// [Internal] Storage used by IsKeyDown(), IsKeyPressed() etc functions.
// If prior to 1.87 you used io.KeysDownDuration[] (which was marked as internal), you should use GetKeyData(key)->DownDuration and *NOT* io.KeysData[key]->DownDuration.
struct ImGuiKeyData
{
bool Down; // True for if key is down
float DownDuration; // Duration the key has been down (<0.0f: not pressed, 0.0f: just pressed, >0.0f: time held)
float DownDurationPrev; // Last frame duration the key has been down
float AnalogValue; // 0.0f..1.0f for gamepad values
};
struct ImGuiIO
{
//------------------------------------------------------------------
// Configuration // Default value
//------------------------------------------------------------------
ImGuiConfigFlags ConfigFlags; // = 0 // See ImGuiConfigFlags_ enum. Set by user/application. Gamepad/keyboard navigation options, etc.
ImGuiBackendFlags BackendFlags; // = 0 // See ImGuiBackendFlags_ enum. Set by backend (imgui_impl_xxx files or custom backend) to communicate features supported by the backend.
ImVec2 DisplaySize; // <unset> // Main display size, in pixels (generally == GetMainViewport()->Size). May change every frame.
float DeltaTime; // = 1.0f/60.0f // Time elapsed since last frame, in seconds. May change every frame.
float IniSavingRate; // = 5.0f // Minimum time between saving positions/sizes to .ini file, in seconds.
const char* IniFilename; // = "imgui.ini" // Path to .ini file (important: default "imgui.ini" is relative to current working dir!). Set NULL to disable automatic .ini loading/saving or if you want to manually call LoadIniSettingsXXX() / SaveIniSettingsXXX() functions.
const char* LogFilename; // = "imgui_log.txt"// Path to .log file (default parameter to ImGui::LogToFile when no file is specified).
float MouseDoubleClickTime; // = 0.30f // Time for a double-click, in seconds.
float MouseDoubleClickMaxDist; // = 6.0f // Distance threshold to stay in to validate a double-click, in pixels.
float MouseDragThreshold; // = 6.0f // Distance threshold before considering we are dragging.
float KeyRepeatDelay; // = 0.275f // When holding a key/button, time before it starts repeating, in seconds (for buttons in Repeat mode, etc.).
float KeyRepeatRate; // = 0.050f // When holding a key/button, rate at which it repeats, in seconds.
float HoverDelayNormal; // = 0.30 sec // Delay on hovering before IsItemHovered(ImGuiHoveredFlags_DelayNormal) returns true.
float HoverDelayShort; // = 0.10 sec // Delay on hovering before IsItemHovered(ImGuiHoveredFlags_DelayShort) returns true.
void* UserData; // = NULL // Store your own data.
ImFontAtlas*Fonts; // <auto> // Font atlas: load, rasterize and pack one or more fonts into a single texture.
float FontGlobalScale; // = 1.0f // Global scale all fonts
bool FontAllowUserScaling; // = false // Allow user scaling text of individual window with CTRL+Wheel.
ImFont* FontDefault; // = NULL // Font to use on NewFrame(). Use NULL to uses Fonts->Fonts[0].
ImVec2 DisplayFramebufferScale; // = (1, 1) // For retina display or other situations where window coordinates are different from framebuffer coordinates. This generally ends up in ImDrawData::FramebufferScale.
// Miscellaneous options
bool MouseDrawCursor; // = false // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by backend implementations.
bool ConfigMacOSXBehaviors; // = defined(__APPLE__) // OS X style: Text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl.
bool ConfigInputTrickleEventQueue; // = true // Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.
bool ConfigInputTextCursorBlink; // = true // Enable blinking cursor (optional as some users consider it to be distracting).
bool ConfigInputTextEnterKeepActive; // = false // [BETA] Pressing Enter will keep item active and select contents (single-line only).
bool ConfigDragClickToInputText; // = false // [BETA] Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving). Not desirable on devices without a keyboard.
bool ConfigWindowsResizeFromEdges; // = true // Enable resizing of windows from their edges and from the lower-left corner. This requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback. (This used to be a per-window ImGuiWindowFlags_ResizeFromAnySide flag)
bool ConfigWindowsMoveFromTitleBarOnly; // = false // Enable allowing to move windows only when clicking on their title bar. Does not apply to windows without a title bar.
float ConfigMemoryCompactTimer; // = 60.0f // Timer (in seconds) to free transient windows/tables memory buffers when unused. Set to -1.0f to disable.
// Debug options
// - tools to test correct Begin/End and BeginChild/EndChild behaviors.
// - presently Begn()/End() and BeginChild()EndChild() needs to ALWAYS be called in tandem, regardless of return value of BeginXXX()
// this is inconsistent with other BeginXXX functions and create confusion for many users.
// - we expect to update the API eventually. In the meanwhile we provided tools to facilitate checking user-code behavior.
bool ConfigDebugBeginReturnValueOnce; // = false // First-time calls to Begin()/BeginChild() will return false. NEEDS TO BE SET AT APPLICATION BOOT TIME if you don't want to miss windows.
bool ConfigDebugBeginReturnValueLoop; // = false // Some calls to Begin()/BeginChild() will return false. Will cycle through window depths then repeat. Suggested use: add "io.ConfigDebugBeginReturnValue = io.KeyShift" in your main loop then occasionally press SHIFT. Windows should be flickering while running.
//------------------------------------------------------------------
// Platform Functions
// (the imgui_impl_xxxx backend files are setting those up for you)
//------------------------------------------------------------------
// Optional: Platform/Renderer backend name (informational only! will be displayed in About Window) + User data for backend/wrappers to store their own stuff.
const char* BackendPlatformName; // = NULL
const char* BackendRendererName; // = NULL
void* BackendPlatformUserData; // = NULL // User data for platform backend
void* BackendRendererUserData; // = NULL // User data for renderer backend
void* BackendLanguageUserData; // = NULL // User data for non C++ programming language backend
// Optional: Access OS clipboard
// (default to use native Win32 clipboard on Windows, otherwise uses a private clipboard. Override to access OS clipboard on other architectures)
const char* (*GetClipboardTextFn)(void* user_data);
void (*SetClipboardTextFn)(void* user_data, const char* text);
void* ClipboardUserData;
// Optional: Notify OS Input Method Editor of the screen position of your cursor for text input position (e.g. when using Japanese/Chinese IME on Windows)
// (default to use native imm32 api on Windows)
void (*SetPlatformImeDataFn)(ImGuiViewport* viewport, ImGuiPlatformImeData* data);
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
void* ImeWindowHandle; // = NULL // [Obsolete] Set ImGuiViewport::PlatformHandleRaw instead. Set this to your HWND to get automatic IME cursor positioning.
#else
void* _UnusedPadding; // Unused field to keep data structure the same size.
#endif
//------------------------------------------------------------------
// Input - Call before calling NewFrame()
//------------------------------------------------------------------
// Input Functions
IMGUI_API void AddKeyEvent(ImGuiKey key, bool down); // Queue a new key down/up event. Key should be "translated" (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character)
IMGUI_API void AddKeyAnalogEvent(ImGuiKey key, bool down, float v); // Queue a new key down/up event for analog values (e.g. ImGuiKey_Gamepad_ values). Dead-zones should be handled by the backend.
IMGUI_API void AddMousePosEvent(float x, float y); // Queue a mouse position update. Use -FLT_MAX,-FLT_MAX to signify no mouse (e.g. app not focused and not hovered)
IMGUI_API void AddMouseButtonEvent(int button, bool down); // Queue a mouse button change
IMGUI_API void AddMouseWheelEvent(float wheel_x, float wheel_y); // Queue a mouse wheel update. wheel_y<0: scroll down, wheel_y>0: scroll up, wheel_x<0: scroll right, wheel_x>0: scroll left.
IMGUI_API void AddFocusEvent(bool focused); // Queue a gain/loss of focus for the application (generally based on OS/platform focus of your window)
IMGUI_API void AddInputCharacter(unsigned int c); // Queue a new character input
IMGUI_API void AddInputCharacterUTF16(ImWchar16 c); // Queue a new character input from a UTF-16 character, it can be a surrogate
IMGUI_API void AddInputCharactersUTF8(const char* str); // Queue a new characters input from a UTF-8 string
IMGUI_API void SetKeyEventNativeData(ImGuiKey key, int native_keycode, int native_scancode, int native_legacy_index = -1); // [Optional] Specify index for legacy <1.87 IsKeyXXX() functions with native indices + specify native keycode, scancode.
IMGUI_API void SetAppAcceptingEvents(bool accepting_events); // Set master flag for accepting key/mouse/text events (default to true). Useful if you have native dialog boxes that are interrupting your application loop/refresh, and you want to disable events being queued while your app is frozen.
IMGUI_API void ClearInputCharacters(); // [Internal] Clear the text input buffer manually
IMGUI_API void ClearInputKeys(); // [Internal] Release all keys
//------------------------------------------------------------------
// Output - Updated by NewFrame() or EndFrame()/Render()
// (when reading from the io.WantCaptureMouse, io.WantCaptureKeyboard flags to dispatch your inputs, it is
// generally easier and more correct to use their state BEFORE calling NewFrame(). See FAQ for details!)
//------------------------------------------------------------------
bool WantCaptureMouse; // Set when Dear ImGui will use mouse inputs, in this case do not dispatch them to your main game/application (either way, always pass on mouse inputs to imgui). (e.g. unclicked mouse is hovering over an imgui window, widget is active, mouse was clicked over an imgui window, etc.).
bool WantCaptureKeyboard; // Set when Dear ImGui will use keyboard inputs, in this case do not dispatch them to your main game/application (either way, always pass keyboard inputs to imgui). (e.g. InputText active, or an imgui window is focused and navigation is enabled, etc.).
bool WantTextInput; // Mobile/console: when set, you may display an on-screen keyboard. This is set by Dear ImGui when it wants textual keyboard input to happen (e.g. when a InputText widget is active).
bool WantSetMousePos; // MousePos has been altered, backend should reposition mouse on next frame. Rarely used! Set only when ImGuiConfigFlags_NavEnableSetMousePos flag is enabled.
bool WantSaveIniSettings; // When manual .ini load/save is active (io.IniFilename == NULL), this will be set to notify your application that you can call SaveIniSettingsToMemory() and save yourself. Important: clear io.WantSaveIniSettings yourself after saving!
bool NavActive; // Keyboard/Gamepad navigation is currently allowed (will handle ImGuiKey_NavXXX events) = a window is focused and it doesn't use the ImGuiWindowFlags_NoNavInputs flag.
bool NavVisible; // Keyboard/Gamepad navigation is visible and allowed (will handle ImGuiKey_NavXXX events).
float Framerate; // Estimate of application framerate (rolling average over 60 frames, based on io.DeltaTime), in frame per second. Solely for convenience. Slow applications may not want to use a moving average or may want to reset underlying buffers occasionally.
int MetricsRenderVertices; // Vertices output during last call to Render()
int MetricsRenderIndices; // Indices output during last call to Render() = number of triangles * 3
int MetricsRenderWindows; // Number of visible windows
int MetricsActiveWindows; // Number of active windows
int MetricsActiveAllocations; // Number of active allocations, updated by MemAlloc/MemFree based on current context. May be off if you have multiple imgui contexts.
ImVec2 MouseDelta; // Mouse delta. Note that this is zero if either current or previous position are invalid (-FLT_MAX,-FLT_MAX), so a disappearing/reappearing mouse won't have a huge delta.
// Legacy: before 1.87, we required backend to fill io.KeyMap[] (imgui->native map) during initialization and io.KeysDown[] (native indices) every frame.
// This is still temporarily supported as a legacy feature. However the new preferred scheme is for backend to call io.AddKeyEvent().
// Old (<1.87): ImGui::IsKeyPressed(ImGui::GetIO().KeyMap[ImGuiKey_Space]) --> New (1.87+) ImGui::IsKeyPressed(ImGuiKey_Space)
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
int KeyMap[ImGuiKey_COUNT]; // [LEGACY] Input: map of indices into the KeysDown[512] entries array which represent your "native" keyboard state. The first 512 are now unused and should be kept zero. Legacy backend will write into KeyMap[] using ImGuiKey_ indices which are always >512.
bool KeysDown[ImGuiKey_COUNT]; // [LEGACY] Input: Keyboard keys that are pressed (ideally left in the "native" order your engine has access to keyboard keys, so you can use your own defines/enums for keys). This used to be [512] sized. It is now ImGuiKey_COUNT to allow legacy io.KeysDown[GetKeyIndex(...)] to work without an overflow.
float NavInputs[ImGuiNavInput_COUNT]; // [LEGACY] Since 1.88, NavInputs[] was removed. Backends from 1.60 to 1.86 won't build. Feed gamepad inputs via io.AddKeyEvent() and ImGuiKey_GamepadXXX enums.
#endif
//------------------------------------------------------------------
// [Internal] Dear ImGui will maintain those fields. Forward compatibility not guaranteed!
//------------------------------------------------------------------
ImGuiContext* Ctx; // Parent UI context (needs to be set explicitly by parent).
// Main Input State
// (this block used to be written by backend, since 1.87 it is best to NOT write to those directly, call the AddXXX functions above instead)
// (reading from those variables is fair game, as they are extremely unlikely to be moving anywhere)
ImVec2 MousePos; // Mouse position, in pixels. Set to ImVec2(-FLT_MAX, -FLT_MAX) if mouse is unavailable (on another screen, etc.)
bool MouseDown[5]; // Mouse buttons: 0=left, 1=right, 2=middle + extras (ImGuiMouseButton_COUNT == 5). Dear ImGui mostly uses left and right buttons. Other buttons allow us to track if the mouse is being used by your application + available to user as a convenience via IsMouse** API.
float MouseWheel; // Mouse wheel Vertical: 1 unit scrolls about 5 lines text. >0 scrolls Up, <0 scrolls Down. Hold SHIFT to turn vertical scroll into horizontal scroll.
float MouseWheelH; // Mouse wheel Horizontal. >0 scrolls Left, <0 scrolls Right. Most users don't have a mouse with a horizontal wheel, may not be filled by all backends.
bool KeyCtrl; // Keyboard modifier down: Control
bool KeyShift; // Keyboard modifier down: Shift
bool KeyAlt; // Keyboard modifier down: Alt
bool KeySuper; // Keyboard modifier down: Cmd/Super/Windows
// Other state maintained from data above + IO function calls
ImGuiKeyChord KeyMods; // Key mods flags (any of ImGuiMod_Ctrl/ImGuiMod_Shift/ImGuiMod_Alt/ImGuiMod_Super flags, same as io.KeyCtrl/KeyShift/KeyAlt/KeySuper but merged into flags. DOES NOT CONTAINS ImGuiMod_Shortcut which is pretranslated). Read-only, updated by NewFrame()
ImGuiKeyData KeysData[ImGuiKey_KeysData_SIZE]; // Key state for all known keys. Use IsKeyXXX() functions to access this.
bool WantCaptureMouseUnlessPopupClose; // Alternative to WantCaptureMouse: (WantCaptureMouse == true && WantCaptureMouseUnlessPopupClose == false) when a click over void is expected to close a popup.
ImVec2 MousePosPrev; // Previous mouse position (note that MouseDelta is not necessary == MousePos-MousePosPrev, in case either position is invalid)
ImVec2 MouseClickedPos[5]; // Position at time of clicking
double MouseClickedTime[5]; // Time of last click (used to figure out double-click)
bool MouseClicked[5]; // Mouse button went from !Down to Down (same as MouseClickedCount[x] != 0)
bool MouseDoubleClicked[5]; // Has mouse button been double-clicked? (same as MouseClickedCount[x] == 2)
ImU16 MouseClickedCount[5]; // == 0 (not clicked), == 1 (same as MouseClicked[]), == 2 (double-clicked), == 3 (triple-clicked) etc. when going from !Down to Down
ImU16 MouseClickedLastCount[5]; // Count successive number of clicks. Stays valid after mouse release. Reset after another click is done.
bool MouseReleased[5]; // Mouse button went from Down to !Down
bool MouseDownOwned[5]; // Track if button was clicked inside a dear imgui window or over void blocked by a popup. We don't request mouse capture from the application if click started outside ImGui bounds.
bool MouseDownOwnedUnlessPopupClose[5]; // Track if button was clicked inside a dear imgui window.
float MouseDownDuration[5]; // Duration the mouse button has been down (0.0f == just clicked)
float MouseDownDurationPrev[5]; // Previous time the mouse button has been down
float MouseDragMaxDistanceSqr[5]; // Squared maximum distance of how much mouse has traveled from the clicking point (used for moving thresholds)
float PenPressure; // Touch/Pen pressure (0.0f to 1.0f, should be >0.0f only when MouseDown[0] == true). Helper storage currently unused by Dear ImGui.
bool AppFocusLost; // Only modify via AddFocusEvent()
bool AppAcceptingEvents; // Only modify via SetAppAcceptingEvents()
ImS8 BackendUsingLegacyKeyArrays; // -1: unknown, 0: using AddKeyEvent(), 1: using legacy io.KeysDown[]
bool BackendUsingLegacyNavInputArray; // 0: using AddKeyAnalogEvent(), 1: writing to legacy io.NavInputs[] directly
ImWchar16 InputQueueSurrogate; // For AddInputCharacterUTF16()
ImVector<ImWchar> InputQueueCharacters; // Queue of _characters_ input (obtained by platform backend). Fill using AddInputCharacter() helper.
IMGUI_API ImGuiIO();
};
//-----------------------------------------------------------------------------
// [SECTION] Misc data structures
//-----------------------------------------------------------------------------
// Shared state of InputText(), passed as an argument to your callback when a ImGuiInputTextFlags_Callback* flag is used.
// The callback function should return 0 by default.
// Callbacks (follow a flag name and see comments in ImGuiInputTextFlags_ declarations for more details)
// - ImGuiInputTextFlags_CallbackEdit: Callback on buffer edit (note that InputText() already returns true on edit, the callback is useful mainly to manipulate the underlying buffer while focus is active)
// - ImGuiInputTextFlags_CallbackAlways: Callback on each iteration
// - ImGuiInputTextFlags_CallbackCompletion: Callback on pressing TAB
// - ImGuiInputTextFlags_CallbackHistory: Callback on pressing Up/Down arrows
// - ImGuiInputTextFlags_CallbackCharFilter: Callback on character inputs to replace or discard them. Modify 'EventChar' to replace or discard, or return 1 in callback to discard.
// - ImGuiInputTextFlags_CallbackResize: Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow.
struct ImGuiInputTextCallbackData
{
ImGuiContext* Ctx; // Parent UI context
ImGuiInputTextFlags EventFlag; // One ImGuiInputTextFlags_Callback* // Read-only
ImGuiInputTextFlags Flags; // What user passed to InputText() // Read-only
void* UserData; // What user passed to InputText() // Read-only
// Arguments for the different callback events
// - To modify the text buffer in a callback, prefer using the InsertChars() / DeleteChars() function. InsertChars() will take care of calling the resize callback if necessary.
// - If you know your edits are not going to resize the underlying buffer allocation, you may modify the contents of 'Buf[]' directly. You need to update 'BufTextLen' accordingly (0 <= BufTextLen < BufSize) and set 'BufDirty'' to true so InputText can update its internal state.
ImWchar EventChar; // Character input // Read-write // [CharFilter] Replace character with another one, or set to zero to drop. return 1 is equivalent to setting EventChar=0;
ImGuiKey EventKey; // Key pressed (Up/Down/TAB) // Read-only // [Completion,History]
char* Buf; // Text buffer // Read-write // [Resize] Can replace pointer / [Completion,History,Always] Only write to pointed data, don't replace the actual pointer!
int BufTextLen; // Text length (in bytes) // Read-write // [Resize,Completion,History,Always] Exclude zero-terminator storage. In C land: == strlen(some_text), in C++ land: string.length()
int BufSize; // Buffer size (in bytes) = capacity+1 // Read-only // [Resize,Completion,History,Always] Include zero-terminator storage. In C land == ARRAYSIZE(my_char_array), in C++ land: string.capacity()+1
bool BufDirty; // Set if you modify Buf/BufTextLen! // Write // [Completion,History,Always]
int CursorPos; // // Read-write // [Completion,History,Always]
int SelectionStart; // // Read-write // [Completion,History,Always] == to SelectionEnd when no selection)
int SelectionEnd; // // Read-write // [Completion,History,Always]
// Helper functions for text manipulation.
// Use those function to benefit from the CallbackResize behaviors. Calling those function reset the selection.
IMGUI_API ImGuiInputTextCallbackData();
IMGUI_API void DeleteChars(int pos, int bytes_count);
IMGUI_API void InsertChars(int pos, const char* text, const char* text_end = NULL);
void SelectAll() { SelectionStart = 0; SelectionEnd = BufTextLen; }
void ClearSelection() { SelectionStart = SelectionEnd = BufTextLen; }
bool HasSelection() const { return SelectionStart != SelectionEnd; }
};
// Resizing callback data to apply custom constraint. As enabled by SetNextWindowSizeConstraints(). Callback is called during the next Begin().
// NB: For basic min/max size constraint on each axis you don't need to use the callback! The SetNextWindowSizeConstraints() parameters are enough.
struct ImGuiSizeCallbackData
{
void* UserData; // Read-only. What user passed to SetNextWindowSizeConstraints(). Generally store an integer or float in here (need reinterpret_cast<>).
ImVec2 Pos; // Read-only. Window position, for reference.
ImVec2 CurrentSize; // Read-only. Current window size.
ImVec2 DesiredSize; // Read-write. Desired size, based on user's mouse position. Write to this field to restrain resizing.
};
// Data payload for Drag and Drop operations: AcceptDragDropPayload(), GetDragDropPayload()
struct ImGuiPayload
{
// Members
void* Data; // Data (copied and owned by dear imgui)
int DataSize; // Data size
// [Internal]
ImGuiID SourceId; // Source item id
ImGuiID SourceParentId; // Source parent id (if available)
int DataFrameCount; // Data timestamp
char DataType[32 + 1]; // Data type tag (short user-supplied string, 32 characters max)
bool Preview; // Set when AcceptDragDropPayload() was called and mouse has been hovering the target item (nb: handle overlapping drag targets)
bool Delivery; // Set when AcceptDragDropPayload() was called and mouse button is released over the target item.
ImGuiPayload() { Clear(); }
void Clear() { SourceId = SourceParentId = 0; Data = NULL; DataSize = 0; memset(DataType, 0, sizeof(DataType)); DataFrameCount = -1; Preview = Delivery = false; }
bool IsDataType(const char* type) const { return DataFrameCount != -1 && strcmp(type, DataType) == 0; }
bool IsPreview() const { return Preview; }
bool IsDelivery() const { return Delivery; }
};
// Sorting specification for one column of a table (sizeof == 12 bytes)
struct ImGuiTableColumnSortSpecs
{
ImGuiID ColumnUserID; // User id of the column (if specified by a TableSetupColumn() call)
ImS16 ColumnIndex; // Index of the column
ImS16 SortOrder; // Index within parent ImGuiTableSortSpecs (always stored in order starting from 0, tables sorted on a single criteria will always have a 0 here)
ImGuiSortDirection SortDirection : 8; // ImGuiSortDirection_Ascending or ImGuiSortDirection_Descending (you can use this or SortSign, whichever is more convenient for your sort function)
ImGuiTableColumnSortSpecs() { memset(this, 0, sizeof(*this)); }
};
// Sorting specifications for a table (often handling sort specs for a single column, occasionally more)
// Obtained by calling TableGetSortSpecs().
// When 'SpecsDirty == true' you can sort your data. It will be true with sorting specs have changed since last call, or the first time.
// Make sure to set 'SpecsDirty = false' after sorting, else you may wastefully sort your data every frame!
struct ImGuiTableSortSpecs
{
const ImGuiTableColumnSortSpecs* Specs; // Pointer to sort spec array.
int SpecsCount; // Sort spec count. Most often 1. May be > 1 when ImGuiTableFlags_SortMulti is enabled. May be == 0 when ImGuiTableFlags_SortTristate is enabled.
bool SpecsDirty; // Set to true when specs have changed since last time! Use this to sort again, then clear the flag.
ImGuiTableSortSpecs() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, Math Operators, ImColor)
//-----------------------------------------------------------------------------
// Helper: Unicode defines
#define IM_UNICODE_CODEPOINT_INVALID 0xFFFD // Invalid Unicode code point (standard value).
#ifdef IMGUI_USE_WCHAR32
#define IM_UNICODE_CODEPOINT_MAX 0x10FFFF // Maximum Unicode code point supported by this build.
#else
#define IM_UNICODE_CODEPOINT_MAX 0xFFFF // Maximum Unicode code point supported by this build.
#endif
// Helper: Execute a block of code at maximum once a frame. Convenient if you want to quickly create a UI within deep-nested code that runs multiple times every frame.
// Usage: static ImGuiOnceUponAFrame oaf; if (oaf) ImGui::Text("This will be called only once per frame");
struct ImGuiOnceUponAFrame
{
ImGuiOnceUponAFrame() { RefFrame = -1; }
mutable int RefFrame;
operator bool() const { int current_frame = ImGui::GetFrameCount(); if (RefFrame == current_frame) return false; RefFrame = current_frame; return true; }
};
// Helper: Parse and apply text filters. In format "aaaaa[,bbbb][,ccccc]"
struct ImGuiTextFilter
{
IMGUI_API ImGuiTextFilter(const char* default_filter = "");
IMGUI_API bool Draw(const char* label = "Filter (inc,-exc)", float width = 0.0f); // Helper calling InputText+Build
IMGUI_API bool PassFilter(const char* text, const char* text_end = NULL) const;
IMGUI_API void Build();
void Clear() { InputBuf[0] = 0; Build(); }
bool IsActive() const { return !Filters.empty(); }
// [Internal]
struct ImGuiTextRange
{
const char* b;
const char* e;
ImGuiTextRange() { b = e = NULL; }
ImGuiTextRange(const char* _b, const char* _e) { b = _b; e = _e; }
bool empty() const { return b == e; }
IMGUI_API void split(char separator, ImVector<ImGuiTextRange>* out) const;
};
char InputBuf[256];
ImVector<ImGuiTextRange>Filters;
int CountGrep;
};
// Helper: Growable text buffer for logging/accumulating text
// (this could be called 'ImGuiTextBuilder' / 'ImGuiStringBuilder')
struct ImGuiTextBuffer
{
ImVector<char> Buf;
IMGUI_API static char EmptyString[1];
ImGuiTextBuffer() { }
inline char operator[](int i) const { IM_ASSERT(Buf.Data != NULL); return Buf.Data[i]; }
const char* begin() const { return Buf.Data ? &Buf.front() : EmptyString; }
const char* end() const { return Buf.Data ? &Buf.back() : EmptyString; } // Buf is zero-terminated, so end() will point on the zero-terminator
int size() const { return Buf.Size ? Buf.Size - 1 : 0; }
bool empty() const { return Buf.Size <= 1; }
void clear() { Buf.clear(); }
void reserve(int capacity) { Buf.reserve(capacity); }
const char* c_str() const { return Buf.Data ? Buf.Data : EmptyString; }
IMGUI_API void append(const char* str, const char* str_end = NULL);
IMGUI_API void appendf(const char* fmt, ...) IM_FMTARGS(2);
IMGUI_API void appendfv(const char* fmt, va_list args) IM_FMTLIST(2);
};
// Helper: Key->Value storage
// Typically you don't have to worry about this since a storage is held within each Window.
// We use it to e.g. store collapse state for a tree (Int 0/1)
// This is optimized for efficient lookup (dichotomy into a contiguous buffer) and rare insertion (typically tied to user interactions aka max once a frame)
// You can use it as custom user storage for temporary values. Declare your own storage if, for example:
// - You want to manipulate the open/close state of a particular sub-tree in your interface (tree node uses Int 0/1 to store their state).
// - You want to store custom debug data easily without adding or editing structures in your code (probably not efficient, but convenient)
// Types are NOT stored, so it is up to you to make sure your Key don't collide with different types.
struct ImGuiStorage
{
// [Internal]
struct ImGuiStoragePair
{
ImGuiID key;
union { int val_i; float val_f; void* val_p; };
ImGuiStoragePair(ImGuiID _key, int _val_i) { key = _key; val_i = _val_i; }
ImGuiStoragePair(ImGuiID _key, float _val_f) { key = _key; val_f = _val_f; }
ImGuiStoragePair(ImGuiID _key, void* _val_p) { key = _key; val_p = _val_p; }
};
ImVector<ImGuiStoragePair> Data;
// - Get***() functions find pair, never add/allocate. Pairs are sorted so a query is O(log N)
// - Set***() functions find pair, insertion on demand if missing.
// - Sorted insertion is costly, paid once. A typical frame shouldn't need to insert any new pair.
void Clear() { Data.clear(); }
IMGUI_API int GetInt(ImGuiID key, int default_val = 0) const;
IMGUI_API void SetInt(ImGuiID key, int val);
IMGUI_API bool GetBool(ImGuiID key, bool default_val = false) const;
IMGUI_API void SetBool(ImGuiID key, bool val);
IMGUI_API float GetFloat(ImGuiID key, float default_val = 0.0f) const;
IMGUI_API void SetFloat(ImGuiID key, float val);
IMGUI_API void* GetVoidPtr(ImGuiID key) const; // default_val is NULL
IMGUI_API void SetVoidPtr(ImGuiID key, void* val);
// - Get***Ref() functions finds pair, insert on demand if missing, return pointer. Useful if you intend to do Get+Set.
// - References are only valid until a new value is added to the storage. Calling a Set***() function or a Get***Ref() function invalidates the pointer.
// - A typical use case where this is convenient for quick hacking (e.g. add storage during a live Edit&Continue session if you can't modify existing struct)
// float* pvar = ImGui::GetFloatRef(key); ImGui::SliderFloat("var", pvar, 0, 100.0f); some_var += *pvar;
IMGUI_API int* GetIntRef(ImGuiID key, int default_val = 0);
IMGUI_API bool* GetBoolRef(ImGuiID key, bool default_val = false);
IMGUI_API float* GetFloatRef(ImGuiID key, float default_val = 0.0f);
IMGUI_API void** GetVoidPtrRef(ImGuiID key, void* default_val = NULL);
// Use on your own storage if you know only integer are being stored (open/close all tree nodes)
IMGUI_API void SetAllInt(int val);
// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
IMGUI_API void BuildSortByKey();
};
// Helper: Manually clip large list of items.
// If you have lots evenly spaced items and you have random access to the list, you can perform coarse
// clipping based on visibility to only submit items that are in view.
// The clipper calculates the range of visible items and advance the cursor to compensate for the non-visible items we have skipped.
// (Dear ImGui already clip items based on their bounds but: it needs to first layout the item to do so, and generally
// fetching/submitting your own data incurs additional cost. Coarse clipping using ImGuiListClipper allows you to easily
// scale using lists with tens of thousands of items without a problem)
// Usage:
// ImGuiListClipper clipper;
// clipper.Begin(1000); // We have 1000 elements, evenly spaced.
// while (clipper.Step())
// for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
// ImGui::Text("line number %d", i);
// Generally what happens is:
// - Clipper lets you process the first element (DisplayStart = 0, DisplayEnd = 1) regardless of it being visible or not.
// - User code submit that one element.
// - Clipper can measure the height of the first element
// - Clipper calculate the actual range of elements to display based on the current clipping rectangle, position the cursor before the first visible element.
// - User code submit visible elements.
// - The clipper also handles various subtleties related to keyboard/gamepad navigation, wrapping etc.
struct ImGuiListClipper
{
ImGuiContext* Ctx; // Parent UI context
int DisplayStart; // First item to display, updated by each call to Step()
int DisplayEnd; // End of items to display (exclusive)
int ItemsCount; // [Internal] Number of items
float ItemsHeight; // [Internal] Height of item after a first step and item submission can calculate it
float StartPosY; // [Internal] Cursor position at the time of Begin() or after table frozen rows are all processed
void* TempData; // [Internal] Internal data
// items_count: Use INT_MAX if you don't know how many items you have (in which case the cursor won't be advanced in the final step)
// items_height: Use -1.0f to be calculated automatically on first step. Otherwise pass in the distance between your items, typically GetTextLineHeightWithSpacing() or GetFrameHeightWithSpacing().
IMGUI_API ImGuiListClipper();
IMGUI_API ~ImGuiListClipper();
IMGUI_API void Begin(int items_count, float items_height = -1.0f);
IMGUI_API void End(); // Automatically called on the last call of Step() that returns false.
IMGUI_API bool Step(); // Call until it returns false. The DisplayStart/DisplayEnd fields will be set and you can process/draw those items.
// Call ForceDisplayRangeByIndices() before first call to Step() if you need a range of items to be displayed regardless of visibility.
IMGUI_API void ForceDisplayRangeByIndices(int item_min, int item_max); // item_max is exclusive e.g. use (42, 42+1) to make item 42 always visible BUT due to alignment/padding of certain items it is likely that an extra item may be included on either end of the display range.
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
inline ImGuiListClipper(int items_count, float items_height = -1.0f) { memset(this, 0, sizeof(*this)); ItemsCount = -1; Begin(items_count, items_height); } // [removed in 1.79]
#endif
};
// Helpers: ImVec2/ImVec4 operators
// - It is important that we are keeping those disabled by default so they don't leak in user space.
// - This is in order to allow user enabling implicit cast operators between ImVec2/ImVec4 and their own types (using IM_VEC2_CLASS_EXTRA in imconfig.h)
// - You can use '#define IMGUI_DEFINE_MATH_OPERATORS' to import our operators, provided as a courtesy.
// - We unfortunately don't have a unary- operator for ImVec2 because this would needs to be defined inside the class itself.
#ifdef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS_IMPLEMENTED
IM_MSVC_RUNTIME_CHECKS_OFF
static inline ImVec2 operator*(const ImVec2& lhs, const float rhs) { return ImVec2(lhs.x * rhs, lhs.y * rhs); }
static inline ImVec2 operator/(const ImVec2& lhs, const float rhs) { return ImVec2(lhs.x / rhs, lhs.y / rhs); }
static inline ImVec2 operator+(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x + rhs.x, lhs.y + rhs.y); }
static inline ImVec2 operator-(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x - rhs.x, lhs.y - rhs.y); }
static inline ImVec2 operator*(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
static inline ImVec2 operator/(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x / rhs.x, lhs.y / rhs.y); }
static inline ImVec2& operator*=(ImVec2& lhs, const float rhs) { lhs.x *= rhs; lhs.y *= rhs; return lhs; }
static inline ImVec2& operator/=(ImVec2& lhs, const float rhs) { lhs.x /= rhs; lhs.y /= rhs; return lhs; }
static inline ImVec2& operator+=(ImVec2& lhs, const ImVec2& rhs) { lhs.x += rhs.x; lhs.y += rhs.y; return lhs; }
static inline ImVec2& operator-=(ImVec2& lhs, const ImVec2& rhs) { lhs.x -= rhs.x; lhs.y -= rhs.y; return lhs; }
static inline ImVec2& operator*=(ImVec2& lhs, const ImVec2& rhs) { lhs.x *= rhs.x; lhs.y *= rhs.y; return lhs; }
static inline ImVec2& operator/=(ImVec2& lhs, const ImVec2& rhs) { lhs.x /= rhs.x; lhs.y /= rhs.y; return lhs; }
static inline ImVec4 operator+(const ImVec4& lhs, const ImVec4& rhs) { return ImVec4(lhs.x + rhs.x, lhs.y + rhs.y, lhs.z + rhs.z, lhs.w + rhs.w); }
static inline ImVec4 operator-(const ImVec4& lhs, const ImVec4& rhs) { return ImVec4(lhs.x - rhs.x, lhs.y - rhs.y, lhs.z - rhs.z, lhs.w - rhs.w); }
static inline ImVec4 operator*(const ImVec4& lhs, const ImVec4& rhs) { return ImVec4(lhs.x * rhs.x, lhs.y * rhs.y, lhs.z * rhs.z, lhs.w * rhs.w); }
IM_MSVC_RUNTIME_CHECKS_RESTORE
#endif
// Helpers macros to generate 32-bit encoded colors
// User can declare their own format by #defining the 5 _SHIFT/_MASK macros in their imconfig file.
#ifndef IM_COL32_R_SHIFT
#ifdef IMGUI_USE_BGRA_PACKED_COLOR
#define IM_COL32_R_SHIFT 16
#define IM_COL32_G_SHIFT 8
#define IM_COL32_B_SHIFT 0
#define IM_COL32_A_SHIFT 24
#define IM_COL32_A_MASK 0xFF000000
#else
#define IM_COL32_R_SHIFT 0
#define IM_COL32_G_SHIFT 8
#define IM_COL32_B_SHIFT 16
#define IM_COL32_A_SHIFT 24
#define IM_COL32_A_MASK 0xFF000000
#endif
#endif
#define IM_COL32(R,G,B,A) (((ImU32)(A)<<IM_COL32_A_SHIFT) | ((ImU32)(B)<<IM_COL32_B_SHIFT) | ((ImU32)(G)<<IM_COL32_G_SHIFT) | ((ImU32)(R)<<IM_COL32_R_SHIFT))
#define IM_COL32_WHITE IM_COL32(255,255,255,255) // Opaque white = 0xFFFFFFFF
#define IM_COL32_BLACK IM_COL32(0,0,0,255) // Opaque black
#define IM_COL32_BLACK_TRANS IM_COL32(0,0,0,0) // Transparent black = 0x00000000
// Helper: ImColor() implicitly converts colors to either ImU32 (packed 4x1 byte) or ImVec4 (4x1 float)
// Prefer using IM_COL32() macros if you want a guaranteed compile-time ImU32 for usage with ImDrawList API.
// **Avoid storing ImColor! Store either u32 of ImVec4. This is not a full-featured color class. MAY OBSOLETE.
// **None of the ImGui API are using ImColor directly but you can use it as a convenience to pass colors in either ImU32 or ImVec4 formats. Explicitly cast to ImU32 or ImVec4 if needed.
struct ImColor
{
ImVec4 Value;
constexpr ImColor() { }
constexpr ImColor(float r, float g, float b, float a = 1.0f) : Value(r, g, b, a) { }
constexpr ImColor(const ImVec4& col) : Value(col) {}
ImColor(int r, int g, int b, int a = 255) { float sc = 1.0f / 255.0f; Value.x = (float)r * sc; Value.y = (float)g * sc; Value.z = (float)b * sc; Value.w = (float)a * sc; }
ImColor(ImU32 rgba) { float sc = 1.0f / 255.0f; Value.x = (float)((rgba >> IM_COL32_R_SHIFT) & 0xFF) * sc; Value.y = (float)((rgba >> IM_COL32_G_SHIFT) & 0xFF) * sc; Value.z = (float)((rgba >> IM_COL32_B_SHIFT) & 0xFF) * sc; Value.w = (float)((rgba >> IM_COL32_A_SHIFT) & 0xFF) * sc; }
inline operator ImU32() const { return ImGui::ColorConvertFloat4ToU32(Value); }
inline operator ImVec4() const { return Value; }
// FIXME-OBSOLETE: May need to obsolete/cleanup those helpers.
inline void SetHSV(float h, float s, float v, float a = 1.0f){ ImGui::ColorConvertHSVtoRGB(h, s, v, Value.x, Value.y, Value.z); Value.w = a; }
static ImColor HSV(float h, float s, float v, float a = 1.0f) { float r, g, b; ImGui::ColorConvertHSVtoRGB(h, s, v, r, g, b); return ImColor(r, g, b, a); }
};
//-----------------------------------------------------------------------------
// [SECTION] Drawing API (ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawListFlags, ImDrawList, ImDrawData)
// Hold a series of drawing commands. The user provides a renderer for ImDrawData which essentially contains an array of ImDrawList.
//-----------------------------------------------------------------------------
// The maximum line width to bake anti-aliased textures for. Build atlas with ImFontAtlasFlags_NoBakedLines to disable baking.
#ifndef IM_DRAWLIST_TEX_LINES_WIDTH_MAX
#define IM_DRAWLIST_TEX_LINES_WIDTH_MAX (63)
#endif
// ImDrawCallback: Draw callbacks for advanced uses [configurable type: override in imconfig.h]
// NB: You most likely do NOT need to use draw callbacks just to create your own widget or customized UI rendering,
// you can poke into the draw list for that! Draw callback may be useful for example to:
// A) Change your GPU render state,
// B) render a complex 3D scene inside a UI element without an intermediate texture/render target, etc.
// The expected behavior from your rendering function is 'if (cmd.UserCallback != NULL) { cmd.UserCallback(parent_list, cmd); } else { RenderTriangles() }'
// If you want to override the signature of ImDrawCallback, you can simply use e.g. '#define ImDrawCallback MyDrawCallback' (in imconfig.h) + update rendering backend accordingly.
#ifndef ImDrawCallback
typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* cmd);
#endif
// Special Draw callback value to request renderer backend to reset the graphics/render state.
// The renderer backend needs to handle this special value, otherwise it will crash trying to call a function at this address.
// This is useful for example if you submitted callbacks which you know have altered the render state and you want it to be restored.
// It is not done by default because they are many perfectly useful way of altering render state for imgui contents (e.g. changing shader/blending settings before an Image call).
#define ImDrawCallback_ResetRenderState (ImDrawCallback)(-1)
// Typically, 1 command = 1 GPU draw call (unless command is a callback)
// - VtxOffset: When 'io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset' is enabled,
// this fields allow us to render meshes larger than 64K vertices while keeping 16-bit indices.
// Backends made for <1.71. will typically ignore the VtxOffset fields.
// - The ClipRect/TextureId/VtxOffset fields must be contiguous as we memcmp() them together (this is asserted for).
struct ImDrawCmd
{
ImVec4 ClipRect; // 4*4 // Clipping rectangle (x1, y1, x2, y2). Subtract ImDrawData->DisplayPos to get clipping rectangle in "viewport" coordinates
ImTextureID TextureId; // 4-8 // User-provided texture ID. Set by user in ImfontAtlas::SetTexID() for fonts or passed to Image*() functions. Ignore if never using images or multiple fonts atlas.
unsigned int VtxOffset; // 4 // Start offset in vertex buffer. ImGuiBackendFlags_RendererHasVtxOffset: always 0, otherwise may be >0 to support meshes larger than 64K vertices with 16-bit indices.
unsigned int IdxOffset; // 4 // Start offset in index buffer.
unsigned int ElemCount; // 4 // Number of indices (multiple of 3) to be rendered as triangles. Vertices are stored in the callee ImDrawList's vtx_buffer[] array, indices in idx_buffer[].
ImDrawCallback UserCallback; // 4-8 // If != NULL, call the function instead of rendering the vertices. clip_rect and texture_id will be set normally.
void* UserCallbackData; // 4-8 // The draw callback code can access this.
ImDrawCmd() { memset(this, 0, sizeof(*this)); } // Also ensure our padding fields are zeroed
// Since 1.83: returns ImTextureID associated with this draw call. Warning: DO NOT assume this is always same as 'TextureId' (we will change this function for an upcoming feature)
inline ImTextureID GetTexID() const { return TextureId; }
};
// Vertex layout
#ifndef IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT
struct ImDrawVert
{
ImVec2 pos;
ImVec2 uv;
ImU32 col;
};
#else
// You can override the vertex format layout by defining IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT in imconfig.h
// The code expect ImVec2 pos (8 bytes), ImVec2 uv (8 bytes), ImU32 col (4 bytes), but you can re-order them or add other fields as needed to simplify integration in your engine.
// The type has to be described within the macro (you can either declare the struct or use a typedef). This is because ImVec2/ImU32 are likely not declared at the time you'd want to set your type up.
// NOTE: IMGUI DOESN'T CLEAR THE STRUCTURE AND DOESN'T CALL A CONSTRUCTOR SO ANY CUSTOM FIELD WILL BE UNINITIALIZED. IF YOU ADD EXTRA FIELDS (SUCH AS A 'Z' COORDINATES) YOU WILL NEED TO CLEAR THEM DURING RENDER OR TO IGNORE THEM.
IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT;
#endif
// [Internal] For use by ImDrawList
struct ImDrawCmdHeader
{
ImVec4 ClipRect;
ImTextureID TextureId;
unsigned int VtxOffset;
};
// [Internal] For use by ImDrawListSplitter
struct ImDrawChannel
{
ImVector<ImDrawCmd> _CmdBuffer;
ImVector<ImDrawIdx> _IdxBuffer;
};
// Split/Merge functions are used to split the draw list into different layers which can be drawn into out of order.
// This is used by the Columns/Tables API, so items of each column can be batched together in a same draw call.
struct ImDrawListSplitter
{
int _Current; // Current channel number (0)
int _Count; // Number of active channels (1+)
ImVector<ImDrawChannel> _Channels; // Draw channels (not resized down so _Count might be < Channels.Size)
inline ImDrawListSplitter() { memset(this, 0, sizeof(*this)); }
inline ~ImDrawListSplitter() { ClearFreeMemory(); }
inline void Clear() { _Current = 0; _Count = 1; } // Do not clear Channels[] so our allocations are reused next frame
IMGUI_API void ClearFreeMemory();
IMGUI_API void Split(ImDrawList* draw_list, int count);
IMGUI_API void Merge(ImDrawList* draw_list);
IMGUI_API void SetCurrentChannel(ImDrawList* draw_list, int channel_idx);
};
// Flags for ImDrawList functions
// (Legacy: bit 0 must always correspond to ImDrawFlags_Closed to be backward compatible with old API using a bool. Bits 1..3 must be unused)
enum ImDrawFlags_
{
ImDrawFlags_None = 0,
ImDrawFlags_Closed = 1 << 0, // PathStroke(), AddPolyline(): specify that shape should be closed (Important: this is always == 1 for legacy reason)
ImDrawFlags_RoundCornersTopLeft = 1 << 4, // AddRect(), AddRectFilled(), PathRect(): enable rounding top-left corner only (when rounding > 0.0f, we default to all corners). Was 0x01.
ImDrawFlags_RoundCornersTopRight = 1 << 5, // AddRect(), AddRectFilled(), PathRect(): enable rounding top-right corner only (when rounding > 0.0f, we default to all corners). Was 0x02.
ImDrawFlags_RoundCornersBottomLeft = 1 << 6, // AddRect(), AddRectFilled(), PathRect(): enable rounding bottom-left corner only (when rounding > 0.0f, we default to all corners). Was 0x04.
ImDrawFlags_RoundCornersBottomRight = 1 << 7, // AddRect(), AddRectFilled(), PathRect(): enable rounding bottom-right corner only (when rounding > 0.0f, we default to all corners). Wax 0x08.
ImDrawFlags_RoundCornersNone = 1 << 8, // AddRect(), AddRectFilled(), PathRect(): disable rounding on all corners (when rounding > 0.0f). This is NOT zero, NOT an implicit flag!
ImDrawFlags_RoundCornersTop = ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight,
ImDrawFlags_RoundCornersBottom = ImDrawFlags_RoundCornersBottomLeft | ImDrawFlags_RoundCornersBottomRight,
ImDrawFlags_RoundCornersLeft = ImDrawFlags_RoundCornersBottomLeft | ImDrawFlags_RoundCornersTopLeft,
ImDrawFlags_RoundCornersRight = ImDrawFlags_RoundCornersBottomRight | ImDrawFlags_RoundCornersTopRight,
ImDrawFlags_RoundCornersAll = ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight | ImDrawFlags_RoundCornersBottomLeft | ImDrawFlags_RoundCornersBottomRight,
ImDrawFlags_RoundCornersDefault_ = ImDrawFlags_RoundCornersAll, // Default to ALL corners if none of the _RoundCornersXX flags are specified.
ImDrawFlags_RoundCornersMask_ = ImDrawFlags_RoundCornersAll | ImDrawFlags_RoundCornersNone,
};
// Flags for ImDrawList instance. Those are set automatically by ImGui:: functions from ImGuiIO settings, and generally not manipulated directly.
// It is however possible to temporarily alter flags between calls to ImDrawList:: functions.
enum ImDrawListFlags_
{
ImDrawListFlags_None = 0,
ImDrawListFlags_AntiAliasedLines = 1 << 0, // Enable anti-aliased lines/borders (*2 the number of triangles for 1.0f wide line or lines thin enough to be drawn using textures, otherwise *3 the number of triangles)
ImDrawListFlags_AntiAliasedLinesUseTex = 1 << 1, // Enable anti-aliased lines/borders using textures when possible. Require backend to render with bilinear filtering (NOT point/nearest filtering).
ImDrawListFlags_AntiAliasedFill = 1 << 2, // Enable anti-aliased edge around filled shapes (rounded rectangles, circles).
ImDrawListFlags_AllowVtxOffset = 1 << 3, // Can emit 'VtxOffset > 0' to allow large meshes. Set when 'ImGuiBackendFlags_RendererHasVtxOffset' is enabled.
};
// Draw command list
// This is the low-level list of polygons that ImGui:: functions are filling. At the end of the frame,
// all command lists are passed to your ImGuiIO::RenderDrawListFn function for rendering.
// Each dear imgui window contains its own ImDrawList. You can use ImGui::GetWindowDrawList() to
// access the current window draw list and draw custom primitives.
// You can interleave normal ImGui:: calls and adding primitives to the current draw list.
// In single viewport mode, top-left is == GetMainViewport()->Pos (generally 0,0), bottom-right is == GetMainViewport()->Pos+Size (generally io.DisplaySize).
// You are totally free to apply whatever transformation matrix to want to the data (depending on the use of the transformation you may want to apply it to ClipRect as well!)
// Important: Primitives are always added to the list and not culled (culling is done at higher-level by ImGui:: functions), if you use this API a lot consider coarse culling your drawn objects.
struct ImDrawList
{
// This is what you have to render
ImVector<ImDrawCmd> CmdBuffer; // Draw commands. Typically 1 command = 1 GPU draw call, unless the command is a callback.
ImVector<ImDrawIdx> IdxBuffer; // Index buffer. Each command consume ImDrawCmd::ElemCount of those
ImVector<ImDrawVert> VtxBuffer; // Vertex buffer.
ImDrawListFlags Flags; // Flags, you may poke into these to adjust anti-aliasing settings per-primitive.
// [Internal, used while building lists]
unsigned int _VtxCurrentIdx; // [Internal] generally == VtxBuffer.Size unless we are past 64K vertices, in which case this gets reset to 0.
ImDrawListSharedData* _Data; // Pointer to shared draw data (you can use ImGui::GetDrawListSharedData() to get the one from current ImGui context)
const char* _OwnerName; // Pointer to owner window's name for debugging
ImDrawVert* _VtxWritePtr; // [Internal] point within VtxBuffer.Data after each add command (to avoid using the ImVector<> operators too much)
ImDrawIdx* _IdxWritePtr; // [Internal] point within IdxBuffer.Data after each add command (to avoid using the ImVector<> operators too much)
ImVector<ImVec4> _ClipRectStack; // [Internal]
ImVector<ImTextureID> _TextureIdStack; // [Internal]
ImVector<ImVec2> _Path; // [Internal] current path building
ImDrawCmdHeader _CmdHeader; // [Internal] template of active commands. Fields should match those of CmdBuffer.back().
ImDrawListSplitter _Splitter; // [Internal] for channels api (note: prefer using your own persistent instance of ImDrawListSplitter!)
float _FringeScale; // [Internal] anti-alias fringe is scaled by this value, this helps to keep things sharp while zooming at vertex buffer content
// If you want to create ImDrawList instances, pass them ImGui::GetDrawListSharedData() or create and use your own ImDrawListSharedData (so you can use ImDrawList without ImGui)
ImDrawList(ImDrawListSharedData* shared_data) { memset(this, 0, sizeof(*this)); _Data = shared_data; }
~ImDrawList() { _ClearFreeMemory(); }
IMGUI_API void PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect = false); // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
IMGUI_API void PushClipRectFullScreen();
IMGUI_API void PopClipRect();
IMGUI_API void PushTextureID(ImTextureID texture_id);
IMGUI_API void PopTextureID();
inline ImVec2 GetClipRectMin() const { const ImVec4& cr = _ClipRectStack.back(); return ImVec2(cr.x, cr.y); }
inline ImVec2 GetClipRectMax() const { const ImVec4& cr = _ClipRectStack.back(); return ImVec2(cr.z, cr.w); }
// Primitives
// - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
// - For rectangular primitives, "p_min" and "p_max" represent the upper-left and lower-right corners.
// - For circle primitives, use "num_segments == 0" to automatically calculate tessellation (preferred).
// In older versions (until Dear ImGui 1.77) the AddCircle functions defaulted to num_segments == 12.
// In future versions we will use textures to provide cheaper and higher-quality circles.
// Use AddNgon() and AddNgonFilled() functions if you need to guarantee a specific number of sides.
IMGUI_API void AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness = 1.0f);
IMGUI_API void AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding = 0.0f, ImDrawFlags flags = 0, float thickness = 1.0f); // a: upper-left, b: lower-right (== upper-left + size)
IMGUI_API void AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding = 0.0f, ImDrawFlags flags = 0); // a: upper-left, b: lower-right (== upper-left + size)
IMGUI_API void AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left);
IMGUI_API void AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness = 1.0f);
IMGUI_API void AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col);
IMGUI_API void AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness = 1.0f);
IMGUI_API void AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col);
IMGUI_API void AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments = 0, float thickness = 1.0f);
IMGUI_API void AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments = 0);
IMGUI_API void AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness = 1.0f);
IMGUI_API void AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments);
IMGUI_API void AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
IMGUI_API void AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
IMGUI_API void AddPolyline(const ImVec2* points, int num_points, ImU32 col, ImDrawFlags flags, float thickness);
IMGUI_API void AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col);
IMGUI_API void AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0); // Cubic Bezier (4 control points)
IMGUI_API void AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments = 0); // Quadratic Bezier (3 control points)
// Image primitives
// - Read FAQ to understand what ImTextureID is.
// - "p_min" and "p_max" represent the upper-left and lower-right corners of the rectangle.
// - "uv_min" and "uv_max" represent the normalized texture coordinates to use for those corners. Using (0,0)->(1,1) texture coordinates will generally display the entire texture.
IMGUI_API void AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min = ImVec2(0, 0), const ImVec2& uv_max = ImVec2(1, 1), ImU32 col = IM_COL32_WHITE);
IMGUI_API void AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1 = ImVec2(0, 0), const ImVec2& uv2 = ImVec2(1, 0), const ImVec2& uv3 = ImVec2(1, 1), const ImVec2& uv4 = ImVec2(0, 1), ImU32 col = IM_COL32_WHITE);
IMGUI_API void AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags = 0);
// Stateful path API, add points then finish with PathFillConvex() or PathStroke()
// - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
inline void PathClear() { _Path.Size = 0; }
inline void PathLineTo(const ImVec2& pos) { _Path.push_back(pos); }
inline void PathLineToMergeDuplicate(const ImVec2& pos) { if (_Path.Size == 0 || memcmp(&_Path.Data[_Path.Size - 1], &pos, 8) != 0) _Path.push_back(pos); }
inline void PathFillConvex(ImU32 col) { AddConvexPolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; }
inline void PathStroke(ImU32 col, ImDrawFlags flags = 0, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, flags, thickness); _Path.Size = 0; }
IMGUI_API void PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments = 0);
IMGUI_API void PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12); // Use precomputed angles for a 12 steps circle
IMGUI_API void PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0); // Cubic Bezier (4 control points)
IMGUI_API void PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments = 0); // Quadratic Bezier (3 control points)
IMGUI_API void PathRect(const ImVec2& rect_min, const ImVec2& rect_max, float rounding = 0.0f, ImDrawFlags flags = 0);
// Advanced
IMGUI_API void AddCallback(ImDrawCallback callback, void* callback_data); // Your rendering function must check for 'UserCallback' in ImDrawCmd and call the function instead of rendering triangles.
IMGUI_API void AddDrawCmd(); // This is useful if you need to forcefully create a new draw call (to allow for dependent rendering / blending). Otherwise primitives are merged into the same draw-call as much as possible
IMGUI_API ImDrawList* CloneOutput() const; // Create a clone of the CmdBuffer/IdxBuffer/VtxBuffer.
// Advanced: Channels
// - Use to split render into layers. By switching channels to can render out-of-order (e.g. submit FG primitives before BG primitives)
// - Use to minimize draw calls (e.g. if going back-and-forth between multiple clipping rectangles, prefer to append into separate channels then merge at the end)
// - FIXME-OBSOLETE: This API shouldn't have been in ImDrawList in the first place!
// Prefer using your own persistent instance of ImDrawListSplitter as you can stack them.
// Using the ImDrawList::ChannelsXXXX you cannot stack a split over another.
inline void ChannelsSplit(int count) { _Splitter.Split(this, count); }
inline void ChannelsMerge() { _Splitter.Merge(this); }
inline void ChannelsSetCurrent(int n) { _Splitter.SetCurrentChannel(this, n); }
// Advanced: Primitives allocations
// - We render triangles (three vertices)
// - All primitives needs to be reserved via PrimReserve() beforehand.
IMGUI_API void PrimReserve(int idx_count, int vtx_count);
IMGUI_API void PrimUnreserve(int idx_count, int vtx_count);
IMGUI_API void PrimRect(const ImVec2& a, const ImVec2& b, ImU32 col); // Axis aligned rectangle (composed of two triangles)
IMGUI_API void PrimRectUV(const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col);
IMGUI_API void PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col);
inline void PrimWriteVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col) { _VtxWritePtr->pos = pos; _VtxWritePtr->uv = uv; _VtxWritePtr->col = col; _VtxWritePtr++; _VtxCurrentIdx++; }
inline void PrimWriteIdx(ImDrawIdx idx) { *_IdxWritePtr = idx; _IdxWritePtr++; }
inline void PrimVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col) { PrimWriteIdx((ImDrawIdx)_VtxCurrentIdx); PrimWriteVtx(pos, uv, col); } // Write vertex with unique index
// Obsolete names
//inline void AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0) { AddBezierCubic(p1, p2, p3, p4, col, thickness, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
//inline void PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0) { PathBezierCubicCurveTo(p2, p3, p4, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
// [Internal helpers]
IMGUI_API void _ResetForNewFrame();
IMGUI_API void _ClearFreeMemory();
IMGUI_API void _PopUnusedDrawCmd();
IMGUI_API void _TryMergeDrawCmds();
IMGUI_API void _OnChangedClipRect();
IMGUI_API void _OnChangedTextureID();
IMGUI_API void _OnChangedVtxOffset();
IMGUI_API int _CalcCircleAutoSegmentCount(float radius) const;
IMGUI_API void _PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step);
IMGUI_API void _PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments);
};
// All draw data to render a Dear ImGui frame
// (NB: the style and the naming convention here is a little inconsistent, we currently preserve them for backward compatibility purpose,
// as this is one of the oldest structure exposed by the library! Basically, ImDrawList == CmdList)
struct ImDrawData
{
bool Valid; // Only valid after Render() is called and before the next NewFrame() is called.
int CmdListsCount; // Number of ImDrawList* to render
int TotalIdxCount; // For convenience, sum of all ImDrawList's IdxBuffer.Size
int TotalVtxCount; // For convenience, sum of all ImDrawList's VtxBuffer.Size
ImDrawList** CmdLists; // Array of ImDrawList* to render. The ImDrawList are owned by ImGuiContext and only pointed to from here.
ImVec2 DisplayPos; // Top-left position of the viewport to render (== top-left of the orthogonal projection matrix to use) (== GetMainViewport()->Pos for the main viewport, == (0.0) in most single-viewport applications)
ImVec2 DisplaySize; // Size of the viewport to render (== GetMainViewport()->Size for the main viewport, == io.DisplaySize in most single-viewport applications)
ImVec2 FramebufferScale; // Amount of pixels for each unit of DisplaySize. Based on io.DisplayFramebufferScale. Generally (1,1) on normal display, (2,2) on OSX with Retina display.
// Functions
ImDrawData() { Clear(); }
void Clear() { memset(this, 0, sizeof(*this)); } // The ImDrawList are owned by ImGuiContext!
IMGUI_API void DeIndexAllBuffers(); // Helper to convert all buffers from indexed to non-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
IMGUI_API void ScaleClipRects(const ImVec2& fb_scale); // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than Dear ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
};
//-----------------------------------------------------------------------------
// [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontAtlasFlags, ImFontAtlas, ImFontGlyphRangesBuilder, ImFont)
//-----------------------------------------------------------------------------
struct ImFontConfig
{
void* FontData; // // TTF/OTF data
int FontDataSize; // // TTF/OTF data size
bool FontDataOwnedByAtlas; // true // TTF/OTF data ownership taken by the container ImFontAtlas (will delete memory itself).
int FontNo; // 0 // Index of font within TTF/OTF file
float SizePixels; // // Size in pixels for rasterizer (more or less maps to the resulting font height).
int OversampleH; // 3 // Rasterize at higher quality for sub-pixel positioning. Note the difference between 2 and 3 is minimal so you can reduce this to 2 to save memory. Read https://github.com/nothings/stb/blob/master/tests/oversample/README.md for details.
int OversampleV; // 1 // Rasterize at higher quality for sub-pixel positioning. This is not really useful as we don't use sub-pixel positions on the Y axis.
bool PixelSnapH; // false // Align every glyph to pixel boundary. Useful e.g. if you are merging a non-pixel aligned font with the default font. If enabled, you can set OversampleH/V to 1.
ImVec2 GlyphExtraSpacing; // 0, 0 // Extra spacing (in pixels) between glyphs. Only X axis is supported for now.
ImVec2 GlyphOffset; // 0, 0 // Offset all glyphs from this font input.
const ImWchar* GlyphRanges; // NULL // THE ARRAY DATA NEEDS TO PERSIST AS LONG AS THE FONT IS ALIVE. Pointer to a user-provided list of Unicode range (2 value per range, values are inclusive, zero-terminated list).
float GlyphMinAdvanceX; // 0 // Minimum AdvanceX for glyphs, set Min to align font icons, set both Min/Max to enforce mono-space font
float GlyphMaxAdvanceX; // FLT_MAX // Maximum AdvanceX for glyphs
bool MergeMode; // false // Merge into previous ImFont, so you can combine multiple inputs font into one ImFont (e.g. ASCII font + icons + Japanese glyphs). You may want to use GlyphOffset.y when merge font of different heights.
unsigned int FontBuilderFlags; // 0 // Settings for custom font builder. THIS IS BUILDER IMPLEMENTATION DEPENDENT. Leave as zero if unsure.
float RasterizerMultiply; // 1.0f // Brighten (>1.0f) or darken (<1.0f) font output. Brightening small fonts may be a good workaround to make them more readable.
ImWchar EllipsisChar; // -1 // Explicitly specify unicode codepoint of ellipsis character. When fonts are being merged first specified ellipsis will be used.
// [Internal]
char Name[40]; // Name (strictly to ease debugging)
ImFont* DstFont;
IMGUI_API ImFontConfig();
};
// Hold rendering data for one glyph.
// (Note: some language parsers may fail to convert the 31+1 bitfield members, in this case maybe drop store a single u32 or we can rework this)
struct ImFontGlyph
{
unsigned int Colored : 1; // Flag to indicate glyph is colored and should generally ignore tinting (make it usable with no shift on little-endian as this is used in loops)
unsigned int Visible : 1; // Flag to indicate glyph has no visible pixels (e.g. space). Allow early out when rendering.
unsigned int Codepoint : 30; // 0x0000..0x10FFFF
float AdvanceX; // Distance to next character (= data from font + ImFontConfig::GlyphExtraSpacing.x baked in)
float X0, Y0, X1, Y1; // Glyph corners
float U0, V0, U1, V1; // Texture coordinates
};
// Helper to build glyph ranges from text/string data. Feed your application strings/characters to it then call BuildRanges().
// This is essentially a tightly packed of vector of 64k booleans = 8KB storage.
struct ImFontGlyphRangesBuilder
{
ImVector<ImU32> UsedChars; // Store 1-bit per Unicode code point (0=unused, 1=used)
ImFontGlyphRangesBuilder() { Clear(); }
inline void Clear() { int size_in_bytes = (IM_UNICODE_CODEPOINT_MAX + 1) / 8; UsedChars.resize(size_in_bytes / (int)sizeof(ImU32)); memset(UsedChars.Data, 0, (size_t)size_in_bytes); }
inline bool GetBit(size_t n) const { int off = (int)(n >> 5); ImU32 mask = 1u << (n & 31); return (UsedChars[off] & mask) != 0; } // Get bit n in the array
inline void SetBit(size_t n) { int off = (int)(n >> 5); ImU32 mask = 1u << (n & 31); UsedChars[off] |= mask; } // Set bit n in the array
inline void AddChar(ImWchar c) { SetBit(c); } // Add character
IMGUI_API void AddText(const char* text, const char* text_end = NULL); // Add string (each character of the UTF-8 string are added)
IMGUI_API void AddRanges(const ImWchar* ranges); // Add ranges, e.g. builder.AddRanges(ImFontAtlas::GetGlyphRangesDefault()) to force add all of ASCII/Latin+Ext
IMGUI_API void BuildRanges(ImVector<ImWchar>* out_ranges); // Output new ranges
};
// See ImFontAtlas::AddCustomRectXXX functions.
struct ImFontAtlasCustomRect
{
unsigned short Width, Height; // Input // Desired rectangle dimension
unsigned short X, Y; // Output // Packed position in Atlas
unsigned int GlyphID; // Input // For custom font glyphs only (ID < 0x110000)
float GlyphAdvanceX; // Input // For custom font glyphs only: glyph xadvance
ImVec2 GlyphOffset; // Input // For custom font glyphs only: glyph display offset
ImFont* Font; // Input // For custom font glyphs only: target font
ImFontAtlasCustomRect() { Width = Height = 0; X = Y = 0xFFFF; GlyphID = 0; GlyphAdvanceX = 0.0f; GlyphOffset = ImVec2(0, 0); Font = NULL; }
bool IsPacked() const { return X != 0xFFFF; }
};
// Flags for ImFontAtlas build
enum ImFontAtlasFlags_
{
ImFontAtlasFlags_None = 0,
ImFontAtlasFlags_NoPowerOfTwoHeight = 1 << 0, // Don't round the height to next power of two
ImFontAtlasFlags_NoMouseCursors = 1 << 1, // Don't build software mouse cursors into the atlas (save a little texture memory)
ImFontAtlasFlags_NoBakedLines = 1 << 2, // Don't build thick line textures into the atlas (save a little texture memory, allow support for point/nearest filtering). The AntiAliasedLinesUseTex features uses them, otherwise they will be rendered using polygons (more expensive for CPU/GPU).
};
// Load and rasterize multiple TTF/OTF fonts into a same texture. The font atlas will build a single texture holding:
// - One or more fonts.
// - Custom graphics data needed to render the shapes needed by Dear ImGui.
// - Mouse cursor shapes for software cursor rendering (unless setting 'Flags |= ImFontAtlasFlags_NoMouseCursors' in the font atlas).
// It is the user-code responsibility to setup/build the atlas, then upload the pixel data into a texture accessible by your graphics api.
// - Optionally, call any of the AddFont*** functions. If you don't call any, the default font embedded in the code will be loaded for you.
// - Call GetTexDataAsAlpha8() or GetTexDataAsRGBA32() to build and retrieve pixels data.
// - Upload the pixels data into a texture within your graphics system (see imgui_impl_xxxx.cpp examples)
// - Call SetTexID(my_tex_id); and pass the pointer/identifier to your texture in a format natural to your graphics API.
// This value will be passed back to you during rendering to identify the texture. Read FAQ entry about ImTextureID for more details.
// Common pitfalls:
// - If you pass a 'glyph_ranges' array to AddFont*** functions, you need to make sure that your array persist up until the
// atlas is build (when calling GetTexData*** or Build()). We only copy the pointer, not the data.
// - Important: By default, AddFontFromMemoryTTF() takes ownership of the data. Even though we are not writing to it, we will free the pointer on destruction.
// You can set font_cfg->FontDataOwnedByAtlas=false to keep ownership of your data and it won't be freed,
// - Even though many functions are suffixed with "TTF", OTF data is supported just as well.
// - This is an old API and it is currently awkward for those and various other reasons! We will address them in the future!
struct ImFontAtlas
{
IMGUI_API ImFontAtlas();
IMGUI_API ~ImFontAtlas();
IMGUI_API ImFont* AddFont(const ImFontConfig* font_cfg);
IMGUI_API ImFont* AddFontDefault(const ImFontConfig* font_cfg = NULL);
IMGUI_API ImFont* AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL);
IMGUI_API ImFont* AddFontFromMemoryTTF(void* font_data, int font_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // Note: Transfer ownership of 'ttf_data' to ImFontAtlas! Will be deleted after destruction of the atlas. Set font_cfg->FontDataOwnedByAtlas=false to keep ownership of your data and it won't be freed.
IMGUI_API ImFont* AddFontFromMemoryCompressedTTF(const void* compressed_font_data, int compressed_font_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_font_data' still owned by caller. Compress with binary_to_compressed_c.cpp.
IMGUI_API ImFont* AddFontFromMemoryCompressedBase85TTF(const char* compressed_font_data_base85, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_font_data_base85' still owned by caller. Compress with binary_to_compressed_c.cpp with -base85 parameter.
IMGUI_API void ClearInputData(); // Clear input data (all ImFontConfig structures including sizes, TTF data, glyph ranges, etc.) = all the data used to build the texture and fonts.
IMGUI_API void ClearTexData(); // Clear output texture data (CPU side). Saves RAM once the texture has been copied to graphics memory.
IMGUI_API void ClearFonts(); // Clear output font data (glyphs storage, UV coordinates).
IMGUI_API void Clear(); // Clear all input and output.
// Build atlas, retrieve pixel data.
// User is in charge of copying the pixels into graphics memory (e.g. create a texture with your engine). Then store your texture handle with SetTexID().
// The pitch is always = Width * BytesPerPixels (1 or 4)
// Building in RGBA32 format is provided for convenience and compatibility, but note that unless you manually manipulate or copy color data into
// the texture (e.g. when using the AddCustomRect*** api), then the RGB pixels emitted will always be white (~75% of memory/bandwidth waste.
IMGUI_API bool Build(); // Build pixels data. This is called automatically for you by the GetTexData*** functions.
IMGUI_API void GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL); // 1 byte per-pixel
IMGUI_API void GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL); // 4 bytes-per-pixel
bool IsBuilt() const { return Fonts.Size > 0 && TexReady; } // Bit ambiguous: used to detect when user didn't build texture but effectively we should check TexID != 0 except that would be backend dependent...
void SetTexID(ImTextureID id) { TexID = id; }
//-------------------------------------------
// Glyph Ranges
//-------------------------------------------
// Helpers to retrieve list of common Unicode ranges (2 value per range, values are inclusive, zero-terminated list)
// NB: Make sure that your string are UTF-8 and NOT in your local code page. In C++11, you can create UTF-8 string literal using the u8"Hello world" syntax. See FAQ for details.
// NB: Consider using ImFontGlyphRangesBuilder to build glyph ranges from textual data.
IMGUI_API const ImWchar* GetGlyphRangesDefault(); // Basic Latin, Extended Latin
IMGUI_API const ImWchar* GetGlyphRangesGreek(); // Default + Greek and Coptic
IMGUI_API const ImWchar* GetGlyphRangesKorean(); // Default + Korean characters
IMGUI_API const ImWchar* GetGlyphRangesJapanese(); // Default + Hiragana, Katakana, Half-Width, Selection of 2999 Ideographs
IMGUI_API const ImWchar* GetGlyphRangesChineseFull(); // Default + Half-Width + Japanese Hiragana/Katakana + full set of about 21000 CJK Unified Ideographs
IMGUI_API const ImWchar* GetGlyphRangesChineseSimplifiedCommon();// Default + Half-Width + Japanese Hiragana/Katakana + set of 2500 CJK Unified Ideographs for common simplified Chinese
IMGUI_API const ImWchar* GetGlyphRangesCyrillic(); // Default + about 400 Cyrillic characters
IMGUI_API const ImWchar* GetGlyphRangesThai(); // Default + Thai characters
IMGUI_API const ImWchar* GetGlyphRangesVietnamese(); // Default + Vietnamese characters
//-------------------------------------------
// [BETA] Custom Rectangles/Glyphs API
//-------------------------------------------
// You can request arbitrary rectangles to be packed into the atlas, for your own purposes.
// - After calling Build(), you can query the rectangle position and render your pixels.
// - If you render colored output, set 'atlas->TexPixelsUseColors = true' as this may help some backends decide of prefered texture format.
// - You can also request your rectangles to be mapped as font glyph (given a font + Unicode point),
// so you can render e.g. custom colorful icons and use them as regular glyphs.
// - Read docs/FONTS.md for more details about using colorful icons.
// - Note: this API may be redesigned later in order to support multi-monitor varying DPI settings.
IMGUI_API int AddCustomRectRegular(int width, int height);
IMGUI_API int AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset = ImVec2(0, 0));
ImFontAtlasCustomRect* GetCustomRectByIndex(int index) { IM_ASSERT(index >= 0); return &CustomRects[index]; }
// [Internal]
IMGUI_API void CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const;
IMGUI_API bool GetMouseCursorTexData(ImGuiMouseCursor cursor, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2]);
//-------------------------------------------
// Members
//-------------------------------------------
ImFontAtlasFlags Flags; // Build flags (see ImFontAtlasFlags_)
ImTextureID TexID; // User data to refer to the texture once it has been uploaded to user's graphic systems. It is passed back to you during rendering via the ImDrawCmd structure.
int TexDesiredWidth; // Texture width desired by user before Build(). Must be a power-of-two. If have many glyphs your graphics API have texture size restrictions you may want to increase texture width to decrease height.
int TexGlyphPadding; // Padding between glyphs within texture in pixels. Defaults to 1. If your rendering method doesn't rely on bilinear filtering you may set this to 0 (will also need to set AntiAliasedLinesUseTex = false).
bool Locked; // Marked as Locked by ImGui::NewFrame() so attempt to modify the atlas will assert.
void* UserData; // Store your own atlas related user-data (if e.g. you have multiple font atlas).
// [Internal]
// NB: Access texture data via GetTexData*() calls! Which will setup a default font for you.
bool TexReady; // Set when texture was built matching current font input
bool TexPixelsUseColors; // Tell whether our texture data is known to use colors (rather than just alpha channel), in order to help backend select a format.
unsigned char* TexPixelsAlpha8; // 1 component per pixel, each component is unsigned 8-bit. Total size = TexWidth * TexHeight
unsigned int* TexPixelsRGBA32; // 4 component per pixel, each component is unsigned 8-bit. Total size = TexWidth * TexHeight * 4
int TexWidth; // Texture width calculated during Build().
int TexHeight; // Texture height calculated during Build().
ImVec2 TexUvScale; // = (1.0f/TexWidth, 1.0f/TexHeight)
ImVec2 TexUvWhitePixel; // Texture coordinates to a white pixel
ImVector<ImFont*> Fonts; // Hold all the fonts returned by AddFont*. Fonts[0] is the default font upon calling ImGui::NewFrame(), use ImGui::PushFont()/PopFont() to change the current font.
ImVector<ImFontAtlasCustomRect> CustomRects; // Rectangles for packing custom texture data into the atlas.
ImVector<ImFontConfig> ConfigData; // Configuration data
ImVec4 TexUvLines[IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1]; // UVs for baked anti-aliased lines
// [Internal] Font builder
const ImFontBuilderIO* FontBuilderIO; // Opaque interface to a font builder (default to stb_truetype, can be changed to use FreeType by defining IMGUI_ENABLE_FREETYPE).
unsigned int FontBuilderFlags; // Shared flags (for all fonts) for custom font builder. THIS IS BUILD IMPLEMENTATION DEPENDENT. Per-font override is also available in ImFontConfig.
// [Internal] Packing data
int PackIdMouseCursors; // Custom texture rectangle ID for white pixel and mouse cursors
int PackIdLines; // Custom texture rectangle ID for baked anti-aliased lines
// [Obsolete]
//typedef ImFontAtlasCustomRect CustomRect; // OBSOLETED in 1.72+
//typedef ImFontGlyphRangesBuilder GlyphRangesBuilder; // OBSOLETED in 1.67+
};
// Font runtime data and rendering
// ImFontAtlas automatically loads a default embedded font for you when you call GetTexDataAsAlpha8() or GetTexDataAsRGBA32().
struct ImFont
{
// Members: Hot ~20/24 bytes (for CalcTextSize)
ImVector<float> IndexAdvanceX; // 12-16 // out // // Sparse. Glyphs->AdvanceX in a directly indexable way (cache-friendly for CalcTextSize functions which only this this info, and are often bottleneck in large UI).
float FallbackAdvanceX; // 4 // out // = FallbackGlyph->AdvanceX
float FontSize; // 4 // in // // Height of characters/line, set during loading (don't change after loading)
// Members: Hot ~28/40 bytes (for CalcTextSize + render loop)
ImVector<ImWchar> IndexLookup; // 12-16 // out // // Sparse. Index glyphs by Unicode code-point.
ImVector<ImFontGlyph> Glyphs; // 12-16 // out // // All glyphs.
const ImFontGlyph* FallbackGlyph; // 4-8 // out // = FindGlyph(FontFallbackChar)
// Members: Cold ~32/40 bytes
ImFontAtlas* ContainerAtlas; // 4-8 // out // // What we has been loaded into
const ImFontConfig* ConfigData; // 4-8 // in // // Pointer within ContainerAtlas->ConfigData
short ConfigDataCount; // 2 // in // ~ 1 // Number of ImFontConfig involved in creating this font. Bigger than 1 when merging multiple font sources into one ImFont.
ImWchar FallbackChar; // 2 // out // = FFFD/'?' // Character used if a glyph isn't found.
ImWchar EllipsisChar; // 2 // out // = '...'/'.'// Character used for ellipsis rendering.
short EllipsisCharCount; // 1 // out // 1 or 3
float EllipsisWidth; // 4 // out // Width
float EllipsisCharStep; // 4 // out // Step between characters when EllipsisCount > 0
bool DirtyLookupTables; // 1 // out //
float Scale; // 4 // in // = 1.f // Base font scale, multiplied by the per-window font scale which you can adjust with SetWindowFontScale()
float Ascent, Descent; // 4+4 // out // // Ascent: distance from top to bottom of e.g. 'A' [0..FontSize]
int MetricsTotalSurface;// 4 // out // // Total surface in pixels to get an idea of the font rasterization/texture cost (not exact, we approximate the cost of padding between glyphs)
ImU8 Used4kPagesMap[(IM_UNICODE_CODEPOINT_MAX+1)/4096/8]; // 2 bytes if ImWchar=ImWchar16, 34 bytes if ImWchar==ImWchar32. Store 1-bit for each block of 4K codepoints that has one active glyph. This is mainly used to facilitate iterations across all used codepoints.
// Methods
IMGUI_API ImFont();
IMGUI_API ~ImFont();
IMGUI_API const ImFontGlyph*FindGlyph(ImWchar c) const;
IMGUI_API const ImFontGlyph*FindGlyphNoFallback(ImWchar c) const;
float GetCharAdvance(ImWchar c) const { return ((int)c < IndexAdvanceX.Size) ? IndexAdvanceX[(int)c] : FallbackAdvanceX; }
bool IsLoaded() const { return ContainerAtlas != NULL; }
const char* GetDebugName() const { return ConfigData ? ConfigData->Name : "<unknown>"; }
// 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
// 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
IMGUI_API const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
IMGUI_API void RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const;
IMGUI_API void RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false) const;
// [Internal] Don't use!
IMGUI_API void BuildLookupTable();
IMGUI_API void ClearOutputData();
IMGUI_API void GrowIndex(int new_size);
IMGUI_API void AddGlyph(const ImFontConfig* src_cfg, ImWchar c, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x);
IMGUI_API void AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst = true); // Makes 'dst' character/glyph points to 'src' character/glyph. Currently needs to be called AFTER fonts have been built.
IMGUI_API void SetGlyphVisible(ImWchar c, bool visible);
IMGUI_API bool IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last);
};
//-----------------------------------------------------------------------------
// [SECTION] Viewports
//-----------------------------------------------------------------------------
// Flags stored in ImGuiViewport::Flags, giving indications to the platform backends.
enum ImGuiViewportFlags_
{
ImGuiViewportFlags_None = 0,
ImGuiViewportFlags_IsPlatformWindow = 1 << 0, // Represent a Platform Window
ImGuiViewportFlags_IsPlatformMonitor = 1 << 1, // Represent a Platform Monitor (unused yet)
ImGuiViewportFlags_OwnedByApp = 1 << 2, // Platform Window: is created/managed by the application (rather than a dear imgui backend)
};
// - Currently represents the Platform Window created by the application which is hosting our Dear ImGui windows.
// - In 'docking' branch with multi-viewport enabled, we extend this concept to have multiple active viewports.
// - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
// - About Main Area vs Work Area:
// - Main Area = entire viewport.
// - Work Area = entire viewport minus sections used by main menu bars (for platform windows), or by task bar (for platform monitor).
// - Windows are generally trying to stay within the Work Area of their host viewport.
struct ImGuiViewport
{
ImGuiViewportFlags Flags; // See ImGuiViewportFlags_
ImVec2 Pos; // Main Area: Position of the viewport (Dear ImGui coordinates are the same as OS desktop/native coordinates)
ImVec2 Size; // Main Area: Size of the viewport.
ImVec2 WorkPos; // Work Area: Position of the viewport minus task bars, menus bars, status bars (>= Pos)
ImVec2 WorkSize; // Work Area: Size of the viewport minus task bars, menu bars, status bars (<= Size)
// Platform/Backend Dependent Data
void* PlatformHandleRaw; // void* to hold lower-level, platform-native window handle (under Win32 this is expected to be a HWND, unused for other platforms)
ImGuiViewport() { memset(this, 0, sizeof(*this)); }
// Helpers
ImVec2 GetCenter() const { return ImVec2(Pos.x + Size.x * 0.5f, Pos.y + Size.y * 0.5f); }
ImVec2 GetWorkCenter() const { return ImVec2(WorkPos.x + WorkSize.x * 0.5f, WorkPos.y + WorkSize.y * 0.5f); }
};
//-----------------------------------------------------------------------------
// [SECTION] Platform Dependent Interfaces
//-----------------------------------------------------------------------------
// (Optional) Support for IME (Input Method Editor) via the io.SetPlatformImeDataFn() function.
struct ImGuiPlatformImeData
{
bool WantVisible; // A widget wants the IME to be visible
ImVec2 InputPos; // Position of the input cursor
float InputLineHeight; // Line height
ImGuiPlatformImeData() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Obsolete functions and types
// (Will be removed! Read 'API BREAKING CHANGES' section in imgui.cpp for details)
// Please keep your copy of dear imgui up to date! Occasionally set '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' in imconfig.h to stay ahead.
//-----------------------------------------------------------------------------
namespace ImGui
{
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
IMGUI_API ImGuiKey GetKeyIndex(ImGuiKey key); // map ImGuiKey_* values into legacy native key index. == io.KeyMap[key]
#else
static inline ImGuiKey GetKeyIndex(ImGuiKey key) { IM_ASSERT(key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END && "ImGuiKey and native_index was merged together and native_index is disabled by IMGUI_DISABLE_OBSOLETE_KEYIO. Please switch to ImGuiKey."); return key; }
#endif
}
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
namespace ImGui
{
// OBSOLETED in 1.89.4 (from March 2023)
static inline void PushAllowKeyboardFocus(bool tab_stop) { PushTabStop(tab_stop); }
static inline void PopAllowKeyboardFocus() { PopTabStop(); }
// OBSOLETED in 1.89 (from August 2022)
IMGUI_API bool ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1, 1), int frame_padding = -1, const ImVec4& bg_col = ImVec4(0, 0, 0, 0), const ImVec4& tint_col = ImVec4(1, 1, 1, 1)); // Use new ImageButton() signature (explicit item id, regular FramePadding)
// OBSOLETED in 1.88 (from May 2022)
static inline void CaptureKeyboardFromApp(bool want_capture_keyboard = true) { SetNextFrameWantCaptureKeyboard(want_capture_keyboard); } // Renamed as name was misleading + removed default value.
static inline void CaptureMouseFromApp(bool want_capture_mouse = true) { SetNextFrameWantCaptureMouse(want_capture_mouse); } // Renamed as name was misleading + removed default value.
// OBSOLETED in 1.86 (from November 2021)
IMGUI_API void CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end); // Calculate coarse clipping for large list of evenly sized items. Prefer using ImGuiListClipper.
// OBSOLETED in 1.85 (from August 2021)
static inline float GetWindowContentRegionWidth() { return GetWindowContentRegionMax().x - GetWindowContentRegionMin().x; }
// OBSOLETED in 1.81 (from February 2021)
IMGUI_API bool ListBoxHeader(const char* label, int items_count, int height_in_items = -1); // Helper to calculate size from items_count and height_in_items
static inline bool ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0, 0)) { return BeginListBox(label, size); }
static inline void ListBoxFooter() { EndListBox(); }
// Some of the older obsolete names along with their replacement (commented out so they are not reported in IDE)
//-- OBSOLETED in 1.79 (from August 2020)
//static inline void OpenPopupContextItem(const char* str_id = NULL, ImGuiMouseButton mb = 1) { OpenPopupOnItemClick(str_id, mb); } // Bool return value removed. Use IsWindowAppearing() in BeginPopup() instead. Renamed in 1.77, renamed back in 1.79. Sorry!
//-- OBSOLETED in 1.78 (from June 2020): Old drag/sliders functions that took a 'float power > 1.0f' argument instead of ImGuiSliderFlags_Logarithmic. See github.com/ocornut/imgui/issues/3361 for details.
//IMGUI_API bool DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min, const void* p_max, const char* format, float power = 1.0f) // OBSOLETED in 1.78 (from June 2020)
//IMGUI_API bool DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min, const void* p_max, const char* format, float power = 1.0f); // OBSOLETED in 1.78 (from June 2020)
//IMGUI_API bool SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, float power = 1.0f); // OBSOLETED in 1.78 (from June 2020)
//IMGUI_API bool SliderScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_min, const void* p_max, const char* format, float power = 1.0f); // OBSOLETED in 1.78 (from June 2020)
//static inline bool DragFloat(const char* label, float* v, float v_speed, float v_min, float v_max, const char* format, float power = 1.0f) { return DragScalar(label, ImGuiDataType_Float, v, v_speed, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool DragFloat2(const char* label, float v[2], float v_speed, float v_min, float v_max, const char* format, float power = 1.0f) { return DragScalarN(label, ImGuiDataType_Float, v, 2, v_speed, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool DragFloat3(const char* label, float v[3], float v_speed, float v_min, float v_max, const char* format, float power = 1.0f) { return DragScalarN(label, ImGuiDataType_Float, v, 3, v_speed, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool DragFloat4(const char* label, float v[4], float v_speed, float v_min, float v_max, const char* format, float power = 1.0f) { return DragScalarN(label, ImGuiDataType_Float, v, 4, v_speed, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool SliderFloat(const char* label, float* v, float v_min, float v_max, const char* format, float power = 1.0f) { return SliderScalar(label, ImGuiDataType_Float, v, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format, float power = 1.0f) { return SliderScalarN(label, ImGuiDataType_Float, v, 2, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format, float power = 1.0f) { return SliderScalarN(label, ImGuiDataType_Float, v, 3, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//static inline bool SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format, float power = 1.0f) { return SliderScalarN(label, ImGuiDataType_Float, v, 4, &v_min, &v_max, format, power); } // OBSOLETED in 1.78 (from June 2020)
//-- OBSOLETED in 1.77 and before
//static inline bool BeginPopupContextWindow(const char* str_id, ImGuiMouseButton mb, bool over_items) { return BeginPopupContextWindow(str_id, mb | (over_items ? 0 : ImGuiPopupFlags_NoOpenOverItems)); } // OBSOLETED in 1.77 (from June 2020)
//static inline void TreeAdvanceToLabelPos() { SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()); } // OBSOLETED in 1.72 (from July 2019)
//static inline void SetNextTreeNodeOpen(bool open, ImGuiCond cond = 0) { SetNextItemOpen(open, cond); } // OBSOLETED in 1.71 (from June 2019)
//static inline float GetContentRegionAvailWidth() { return GetContentRegionAvail().x; } // OBSOLETED in 1.70 (from May 2019)
//static inline ImDrawList* GetOverlayDrawList() { return GetForegroundDrawList(); } // OBSOLETED in 1.69 (from Mar 2019)
//static inline void SetScrollHere(float ratio = 0.5f) { SetScrollHereY(ratio); } // OBSOLETED in 1.66 (from Nov 2018)
//static inline bool IsItemDeactivatedAfterChange() { return IsItemDeactivatedAfterEdit(); } // OBSOLETED in 1.63 (from Aug 2018)
//-- OBSOLETED in 1.60 and before
//static inline bool IsAnyWindowFocused() { return IsWindowFocused(ImGuiFocusedFlags_AnyWindow); } // OBSOLETED in 1.60 (from Apr 2018)
//static inline bool IsAnyWindowHovered() { return IsWindowHovered(ImGuiHoveredFlags_AnyWindow); } // OBSOLETED in 1.60 (between Dec 2017 and Apr 2018)
//static inline void ShowTestWindow() { return ShowDemoWindow(); } // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
//static inline bool IsRootWindowFocused() { return IsWindowFocused(ImGuiFocusedFlags_RootWindow); } // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
//static inline bool IsRootWindowOrAnyChildFocused() { return IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows); } // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
//static inline void SetNextWindowContentWidth(float w) { SetNextWindowContentSize(ImVec2(w, 0.0f)); } // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
//static inline float GetItemsLineHeightWithSpacing() { return GetFrameHeightWithSpacing(); } // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
//IMGUI_API bool Begin(char* name, bool* p_open, ImVec2 size_first_use, float bg_alpha = -1.0f, ImGuiWindowFlags flags=0); // OBSOLETED in 1.52 (between Aug 2017 and Oct 2017): Equivalent of using SetNextWindowSize(size, ImGuiCond_FirstUseEver) and SetNextWindowBgAlpha().
//static inline bool IsRootWindowOrAnyChildHovered() { return IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows); } // OBSOLETED in 1.52 (between Aug 2017 and Oct 2017)
//static inline void AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); } // OBSOLETED in 1.52 (between Aug 2017 and Oct 2017)
//static inline void SetNextWindowPosCenter(ImGuiCond c=0) { SetNextWindowPos(GetMainViewport()->GetCenter(), c, ImVec2(0.5f,0.5f)); } // OBSOLETED in 1.52 (between Aug 2017 and Oct 2017)
//static inline bool IsItemHoveredRect() { return IsItemHovered(ImGuiHoveredFlags_RectOnly); } // OBSOLETED in 1.51 (between Jun 2017 and Aug 2017)
//static inline bool IsPosHoveringAnyWindow(const ImVec2&) { IM_ASSERT(0); return false; } // OBSOLETED in 1.51 (between Jun 2017 and Aug 2017): This was misleading and partly broken. You probably want to use the io.WantCaptureMouse flag instead.
//static inline bool IsMouseHoveringAnyWindow() { return IsWindowHovered(ImGuiHoveredFlags_AnyWindow); } // OBSOLETED in 1.51 (between Jun 2017 and Aug 2017)
//static inline bool IsMouseHoveringWindow() { return IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem); } // OBSOLETED in 1.51 (between Jun 2017 and Aug 2017)
//-- OBSOLETED in 1.50 and before
//static inline bool CollapsingHeader(char* label, const char* str_id, bool framed = true, bool default_open = false) { return CollapsingHeader(label, (default_open ? (1 << 5) : 0)); } // OBSOLETED in 1.49
//static inline ImFont*GetWindowFont() { return GetFont(); } // OBSOLETED in 1.48
//static inline float GetWindowFontSize() { return GetFontSize(); } // OBSOLETED in 1.48
//static inline void SetScrollPosHere() { SetScrollHere(); } // OBSOLETED in 1.42
}
// OBSOLETED in 1.82 (from Mars 2021): flags for AddRect(), AddRectFilled(), AddImageRounded(), PathRect()
typedef ImDrawFlags ImDrawCornerFlags;
enum ImDrawCornerFlags_
{
ImDrawCornerFlags_None = ImDrawFlags_RoundCornersNone, // Was == 0 prior to 1.82, this is now == ImDrawFlags_RoundCornersNone which is != 0 and not implicit
ImDrawCornerFlags_TopLeft = ImDrawFlags_RoundCornersTopLeft, // Was == 0x01 (1 << 0) prior to 1.82. Order matches ImDrawFlags_NoRoundCorner* flag (we exploit this internally).
ImDrawCornerFlags_TopRight = ImDrawFlags_RoundCornersTopRight, // Was == 0x02 (1 << 1) prior to 1.82.
ImDrawCornerFlags_BotLeft = ImDrawFlags_RoundCornersBottomLeft, // Was == 0x04 (1 << 2) prior to 1.82.
ImDrawCornerFlags_BotRight = ImDrawFlags_RoundCornersBottomRight, // Was == 0x08 (1 << 3) prior to 1.82.
ImDrawCornerFlags_All = ImDrawFlags_RoundCornersAll, // Was == 0x0F prior to 1.82
ImDrawCornerFlags_Top = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_TopRight,
ImDrawCornerFlags_Bot = ImDrawCornerFlags_BotLeft | ImDrawCornerFlags_BotRight,
ImDrawCornerFlags_Left = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_BotLeft,
ImDrawCornerFlags_Right = ImDrawCornerFlags_TopRight | ImDrawCornerFlags_BotRight,
};
// RENAMED and MERGED both ImGuiKey_ModXXX and ImGuiModFlags_XXX into ImGuiMod_XXX (from September 2022)
// RENAMED ImGuiKeyModFlags -> ImGuiModFlags in 1.88 (from April 2022). Exceptionally commented out ahead of obscolescence schedule to reduce confusion and because they were not meant to be used in the first place.
typedef ImGuiKeyChord ImGuiModFlags; // == int. We generally use ImGuiKeyChord to mean "a ImGuiKey or-ed with any number of ImGuiMod_XXX value", but you may store only mods in there.
enum ImGuiModFlags_ { ImGuiModFlags_None = 0, ImGuiModFlags_Ctrl = ImGuiMod_Ctrl, ImGuiModFlags_Shift = ImGuiMod_Shift, ImGuiModFlags_Alt = ImGuiMod_Alt, ImGuiModFlags_Super = ImGuiMod_Super };
//typedef ImGuiKeyChord ImGuiKeyModFlags; // == int
//enum ImGuiKeyModFlags_ { ImGuiKeyModFlags_None = 0, ImGuiKeyModFlags_Ctrl = ImGuiMod_Ctrl, ImGuiKeyModFlags_Shift = ImGuiMod_Shift, ImGuiKeyModFlags_Alt = ImGuiMod_Alt, ImGuiKeyModFlags_Super = ImGuiMod_Super };
#endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// RENAMED IMGUI_DISABLE_METRICS_WINDOW > IMGUI_DISABLE_DEBUG_TOOLS in 1.88 (from June 2022)
#if defined(IMGUI_DISABLE_METRICS_WINDOW) && !defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS) && !defined(IMGUI_DISABLE_DEBUG_TOOLS)
#define IMGUI_DISABLE_DEBUG_TOOLS
#endif
#if defined(IMGUI_DISABLE_METRICS_WINDOW) && defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS)
#error IMGUI_DISABLE_METRICS_WINDOW was renamed to IMGUI_DISABLE_DEBUG_TOOLS, please use new name.
#endif
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#elif defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#ifdef _MSC_VER
#pragma warning (pop)
#endif
// Include imgui_user.h at the end of imgui.h (convenient for user to only explicitly include vanilla imgui.h)
#ifdef IMGUI_INCLUDE_IMGUI_USER_H
#include "imgui_user.h"
#endif
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/implot.h | // MIT License
// Copyright (c) 2022 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.14
// Table of Contents:
//
// [SECTION] Macros and Defines
// [SECTION] Enums and Types
// [SECTION] Callbacks
// [SECTION] Contexts
// [SECTION] Begin/End Plot
// [SECTION] Begin/End Subplot
// [SECTION] Setup
// [SECTION] SetNext
// [SECTION] Plot Items
// [SECTION] Plot Tools
// [SECTION] Plot Utils
// [SECTION] Legend Utils
// [SECTION] Drag and Drop
// [SECTION] Styling
// [SECTION] Colormaps
// [SECTION] Input Mapping
// [SECTION] Miscellaneous
// [SECTION] Demo
// [SECTION] Obsolete API
#pragma once
#include "imgui.h"
//-----------------------------------------------------------------------------
// [SECTION] Macros and Defines
//-----------------------------------------------------------------------------
// Define attributes of all API symbols declarations (e.g. for DLL under Windows)
// Using ImPlot via a shared library is not recommended, because we don't guarantee
// backward nor forward ABI compatibility and also function call overhead. If you
// do use ImPlot as a DLL, be sure to call SetImGuiContext (see Miscellanous section).
#ifndef IMPLOT_API
#define IMPLOT_API
#endif
// ImPlot version string.
#define IMPLOT_VERSION "0.14"
// Indicates variable should deduced automatically.
#define IMPLOT_AUTO -1
// Special color used to indicate that a color should be deduced automatically.
#define IMPLOT_AUTO_COL ImVec4(0,0,0,-1)
// Macro for templated plotting functions; keeps header clean.
#define IMPLOT_TMP template <typename T> IMPLOT_API
//-----------------------------------------------------------------------------
// [SECTION] Enums and Types
//-----------------------------------------------------------------------------
// Forward declarations
struct ImPlotContext; // ImPlot context (opaque struct, see implot_internal.h)
// Enums/Flags
typedef int ImAxis; // -> enum ImAxis_
typedef int ImPlotFlags; // -> enum ImPlotFlags_
typedef int ImPlotAxisFlags; // -> enum ImPlotAxisFlags_
typedef int ImPlotSubplotFlags; // -> enum ImPlotSubplotFlags_
typedef int ImPlotLegendFlags; // -> enum ImPlotLegendFlags_
typedef int ImPlotMouseTextFlags; // -> enum ImPlotMouseTextFlags_
typedef int ImPlotDragToolFlags; // -> ImPlotDragToolFlags_
typedef int ImPlotColormapScaleFlags; // -> ImPlotColormapScaleFlags_
typedef int ImPlotItemFlags; // -> ImPlotItemFlags_
typedef int ImPlotLineFlags; // -> ImPlotLineFlags_
typedef int ImPlotScatterFlags; // -> ImPlotScatterFlags
typedef int ImPlotStairsFlags; // -> ImPlotStairsFlags_
typedef int ImPlotShadedFlags; // -> ImPlotShadedFlags_
typedef int ImPlotBarsFlags; // -> ImPlotBarsFlags_
typedef int ImPlotBarGroupsFlags; // -> ImPlotBarGroupsFlags_
typedef int ImPlotErrorBarsFlags; // -> ImPlotErrorBarsFlags_
typedef int ImPlotStemsFlags; // -> ImPlotStemsFlags_
typedef int ImPlotInfLinesFlags; // -> ImPlotInfLinesFlags_
typedef int ImPlotPieChartFlags; // -> ImPlotPieChartFlags_
typedef int ImPlotHeatmapFlags; // -> ImPlotHeatmapFlags_
typedef int ImPlotHistogramFlags; // -> ImPlotHistogramFlags_
typedef int ImPlotDigitalFlags; // -> ImPlotDigitalFlags_
typedef int ImPlotImageFlags; // -> ImPlotImageFlags_
typedef int ImPlotTextFlags; // -> ImPlotTextFlags_
typedef int ImPlotDummyFlags; // -> ImPlotDummyFlags_
typedef int ImPlotCond; // -> enum ImPlotCond_
typedef int ImPlotCol; // -> enum ImPlotCol_
typedef int ImPlotStyleVar; // -> enum ImPlotStyleVar_
typedef int ImPlotScale; // -> enum ImPlotScale_
typedef int ImPlotMarker; // -> enum ImPlotMarker_
typedef int ImPlotColormap; // -> enum ImPlotColormap_
typedef int ImPlotLocation; // -> enum ImPlotLocation_
typedef int ImPlotBin; // -> enum ImPlotBin_
// Axis indices. The values assigned may change; NEVER hardcode these.
enum ImAxis_ {
// horizontal axes
ImAxis_X1 = 0, // enabled by default
ImAxis_X2, // disabled by default
ImAxis_X3, // disabled by default
// vertical axes
ImAxis_Y1, // enabled by default
ImAxis_Y2, // disabled by default
ImAxis_Y3, // disabled by default
// bookeeping
ImAxis_COUNT
};
// Options for plots (see BeginPlot).
enum ImPlotFlags_ {
ImPlotFlags_None = 0, // default
ImPlotFlags_NoTitle = 1 << 0, // the plot title will not be displayed (titles are also hidden if preceeded by double hashes, e.g. "##MyPlot")
ImPlotFlags_NoLegend = 1 << 1, // the legend will not be displayed
ImPlotFlags_NoMouseText = 1 << 2, // the mouse position, in plot coordinates, will not be displayed inside of the plot
ImPlotFlags_NoInputs = 1 << 3, // the user will not be able to interact with the plot
ImPlotFlags_NoMenus = 1 << 4, // the user will not be able to open context menus
ImPlotFlags_NoBoxSelect = 1 << 5, // the user will not be able to box-select
ImPlotFlags_NoChild = 1 << 6, // a child window region will not be used to capture mouse scroll (can boost performance for single ImGui window applications)
ImPlotFlags_NoFrame = 1 << 7, // the ImGui frame will not be rendered
ImPlotFlags_Equal = 1 << 8, // x and y axes pairs will be constrained to have the same units/pixel
ImPlotFlags_Crosshairs = 1 << 9, // the default mouse cursor will be replaced with a crosshair when hovered
ImPlotFlags_CanvasOnly = ImPlotFlags_NoTitle | ImPlotFlags_NoLegend | ImPlotFlags_NoMenus | ImPlotFlags_NoBoxSelect | ImPlotFlags_NoMouseText
};
// Options for plot axes (see SetupAxis).
enum ImPlotAxisFlags_ {
ImPlotAxisFlags_None = 0, // default
ImPlotAxisFlags_NoLabel = 1 << 0, // the axis label will not be displayed (axis labels are also hidden if the supplied string name is NULL)
ImPlotAxisFlags_NoGridLines = 1 << 1, // no grid lines will be displayed
ImPlotAxisFlags_NoTickMarks = 1 << 2, // no tick marks will be displayed
ImPlotAxisFlags_NoTickLabels = 1 << 3, // no text labels will be displayed
ImPlotAxisFlags_NoInitialFit = 1 << 4, // axis will not be initially fit to data extents on the first rendered frame
ImPlotAxisFlags_NoMenus = 1 << 5, // the user will not be able to open context menus with right-click
ImPlotAxisFlags_NoSideSwitch = 1 << 6, // the user will not be able to switch the axis side by dragging it
ImPlotAxisFlags_NoHighlight = 1 << 7, // the axis will not have its background highlighted when hovered or held
ImPlotAxisFlags_Opposite = 1 << 8, // axis ticks and labels will be rendered on the conventionally opposite side (i.e, right or top)
ImPlotAxisFlags_Foreground = 1 << 9, // grid lines will be displayed in the foreground (i.e. on top of data) instead of the background
ImPlotAxisFlags_Invert = 1 << 10, // the axis will be inverted
ImPlotAxisFlags_AutoFit = 1 << 11, // axis will be auto-fitting to data extents
ImPlotAxisFlags_RangeFit = 1 << 12, // axis will only fit points if the point is in the visible range of the **orthogonal** axis
ImPlotAxisFlags_PanStretch = 1 << 13, // panning in a locked or constrained state will cause the axis to stretch if possible
ImPlotAxisFlags_LockMin = 1 << 14, // the axis minimum value will be locked when panning/zooming
ImPlotAxisFlags_LockMax = 1 << 15, // the axis maximum value will be locked when panning/zooming
ImPlotAxisFlags_Lock = ImPlotAxisFlags_LockMin | ImPlotAxisFlags_LockMax,
ImPlotAxisFlags_NoDecorations = ImPlotAxisFlags_NoLabel | ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_NoTickMarks | ImPlotAxisFlags_NoTickLabels,
ImPlotAxisFlags_AuxDefault = ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_Opposite
};
// Options for subplots (see BeginSubplot)
enum ImPlotSubplotFlags_ {
ImPlotSubplotFlags_None = 0, // default
ImPlotSubplotFlags_NoTitle = 1 << 0, // the subplot title will not be displayed (titles are also hidden if preceeded by double hashes, e.g. "##MySubplot")
ImPlotSubplotFlags_NoLegend = 1 << 1, // the legend will not be displayed (only applicable if ImPlotSubplotFlags_ShareItems is enabled)
ImPlotSubplotFlags_NoMenus = 1 << 2, // the user will not be able to open context menus with right-click
ImPlotSubplotFlags_NoResize = 1 << 3, // resize splitters between subplot cells will be not be provided
ImPlotSubplotFlags_NoAlign = 1 << 4, // subplot edges will not be aligned vertically or horizontally
ImPlotSubplotFlags_ShareItems = 1 << 5, // items across all subplots will be shared and rendered into a single legend entry
ImPlotSubplotFlags_LinkRows = 1 << 6, // link the y-axis limits of all plots in each row (does not apply to auxiliary axes)
ImPlotSubplotFlags_LinkCols = 1 << 7, // link the x-axis limits of all plots in each column (does not apply to auxiliary axes)
ImPlotSubplotFlags_LinkAllX = 1 << 8, // link the x-axis limits in every plot in the subplot (does not apply to auxiliary axes)
ImPlotSubplotFlags_LinkAllY = 1 << 9, // link the y-axis limits in every plot in the subplot (does not apply to auxiliary axes)
ImPlotSubplotFlags_ColMajor = 1 << 10 // subplots are added in column major order instead of the default row major order
};
// Options for legends (see SetupLegend)
enum ImPlotLegendFlags_ {
ImPlotLegendFlags_None = 0, // default
ImPlotLegendFlags_NoButtons = 1 << 0, // legend icons will not function as hide/show buttons
ImPlotLegendFlags_NoHighlightItem = 1 << 1, // plot items will not be highlighted when their legend entry is hovered
ImPlotLegendFlags_NoHighlightAxis = 1 << 2, // axes will not be highlighted when legend entries are hovered (only relevant if x/y-axis count > 1)
ImPlotLegendFlags_NoMenus = 1 << 3, // the user will not be able to open context menus with right-click
ImPlotLegendFlags_Outside = 1 << 4, // legend will be rendered outside of the plot area
ImPlotLegendFlags_Horizontal = 1 << 5, // legend entries will be displayed horizontally
ImPlotLegendFlags_Sort = 1 << 6, // legend entries will be displayed in alphabetical order
};
// Options for mouse hover text (see SetupMouseText)
enum ImPlotMouseTextFlags_ {
ImPlotMouseTextFlags_None = 0, // default
ImPlotMouseTextFlags_NoAuxAxes = 1 << 0, // only show the mouse position for primary axes
ImPlotMouseTextFlags_NoFormat = 1 << 1, // axes label formatters won't be used to render text
ImPlotMouseTextFlags_ShowAlways = 1 << 2, // always display mouse position even if plot not hovered
};
// Options for DragPoint, DragLine, DragRect
enum ImPlotDragToolFlags_ {
ImPlotDragToolFlags_None = 0, // default
ImPlotDragToolFlags_NoCursors = 1 << 0, // drag tools won't change cursor icons when hovered or held
ImPlotDragToolFlags_NoFit = 1 << 1, // the drag tool won't be considered for plot fits
ImPlotDragToolFlags_NoInputs = 1 << 2, // lock the tool from user inputs
ImPlotDragToolFlags_Delayed = 1 << 3, // tool rendering will be delayed one frame; useful when applying position-constraints
};
// Flags for ColormapScale
enum ImPlotColormapScaleFlags_ {
ImPlotColormapScaleFlags_None = 0, // default
ImPlotColormapScaleFlags_NoLabel = 1 << 0, // the colormap axis label will not be displayed
ImPlotColormapScaleFlags_Opposite = 1 << 1, // render the colormap label and tick labels on the opposite side
ImPlotColormapScaleFlags_Invert = 1 << 2, // invert the colormap bar and axis scale (this only affects rendering; if you only want to reverse the scale mapping, make scale_min > scale_max)
};
// Flags for ANY PlotX function
enum ImPlotItemFlags_ {
ImPlotItemFlags_None = 0,
ImPlotItemFlags_NoLegend = 1 << 0, // the item won't have a legend entry displayed
ImPlotItemFlags_NoFit = 1 << 1, // the item won't be considered for plot fits
};
// Flags for PlotLine
enum ImPlotLineFlags_ {
ImPlotLineFlags_None = 0, // default
ImPlotLineFlags_Segments = 1 << 10, // a line segment will be rendered from every two consecutive points
ImPlotLineFlags_Loop = 1 << 11, // the last and first point will be connected to form a closed loop
ImPlotLineFlags_SkipNaN = 1 << 12, // NaNs values will be skipped instead of rendered as missing data
ImPlotLineFlags_NoClip = 1 << 13, // markers (if displayed) on the edge of a plot will not be clipped
ImPlotLineFlags_Shaded = 1 << 14, // a filled region between the line and horizontal origin will be rendered; use PlotShaded for more advanced cases
};
// Flags for PlotScatter
enum ImPlotScatterFlags_ {
ImPlotScatterFlags_None = 0, // default
ImPlotScatterFlags_NoClip = 1 << 10, // markers on the edge of a plot will not be clipped
};
// Flags for PlotStairs
enum ImPlotStairsFlags_ {
ImPlotStairsFlags_None = 0, // default
ImPlotStairsFlags_PreStep = 1 << 10, // the y value is continued constantly to the left from every x position, i.e. the interval (x[i-1], x[i]] has the value y[i]
ImPlotStairsFlags_Shaded = 1 << 11 // a filled region between the stairs and horizontal origin will be rendered; use PlotShaded for more advanced cases
};
// Flags for PlotShaded (placeholder)
enum ImPlotShadedFlags_ {
ImPlotShadedFlags_None = 0 // default
};
// Flags for PlotBars
enum ImPlotBarsFlags_ {
ImPlotBarsFlags_None = 0, // default
ImPlotBarsFlags_Horizontal = 1 << 10, // bars will be rendered horizontally on the current y-axis
};
// Flags for PlotBarGroups
enum ImPlotBarGroupsFlags_ {
ImPlotBarGroupsFlags_None = 0, // default
ImPlotBarGroupsFlags_Horizontal = 1 << 10, // bar groups will be rendered horizontally on the current y-axis
ImPlotBarGroupsFlags_Stacked = 1 << 11, // items in a group will be stacked on top of each other
};
// Flags for PlotErrorBars
enum ImPlotErrorBarsFlags_ {
ImPlotErrorBarsFlags_None = 0, // default
ImPlotErrorBarsFlags_Horizontal = 1 << 10, // error bars will be rendered horizontally on the current y-axis
};
// Flags for PlotStems
enum ImPlotStemsFlags_ {
ImPlotStemsFlags_None = 0, // default
ImPlotStemsFlags_Horizontal = 1 << 10, // stems will be rendered horizontally on the current y-axis
};
// Flags for PlotInfLines
enum ImPlotInfLinesFlags_ {
ImPlotInfLinesFlags_None = 0, // default
ImPlotInfLinesFlags_Horizontal = 1 << 10 // lines will be rendered horizontally on the current y-axis
};
// Flags for PlotPieChart
enum ImPlotPieChartFlags_ {
ImPlotPieChartFlags_None = 0, // default
ImPlotPieChartFlags_Normalize = 1 << 10 // force normalization of pie chart values (i.e. always make a full circle if sum < 0)
};
// Flags for PlotHeatmap
enum ImPlotHeatmapFlags_ {
ImPlotHeatmapFlags_None = 0, // default
ImPlotHeatmapFlags_ColMajor = 1 << 10, // data will be read in column major order
};
// Flags for PlotHistogram and PlotHistogram2D
enum ImPlotHistogramFlags_ {
ImPlotHistogramFlags_None = 0, // default
ImPlotHistogramFlags_Horizontal = 1 << 10, // histogram bars will be rendered horizontally (not supported by PlotHistogram2D)
ImPlotHistogramFlags_Cumulative = 1 << 11, // each bin will contain its count plus the counts of all previous bins (not supported by PlotHistogram2D)
ImPlotHistogramFlags_Density = 1 << 12, // counts will be normalized, i.e. the PDF will be visualized, or the CDF will be visualized if Cumulative is also set
ImPlotHistogramFlags_NoOutliers = 1 << 13, // exclude values outside the specifed histogram range from the count toward normalizing and cumulative counts
ImPlotHistogramFlags_ColMajor = 1 << 14 // data will be read in column major order (not supported by PlotHistogram)
};
// Flags for PlotDigital (placeholder)
enum ImPlotDigitalFlags_ {
ImPlotDigitalFlags_None = 0 // default
};
// Flags for PlotImage (placeholder)
enum ImPlotImageFlags_ {
ImPlotImageFlags_None = 0 // default
};
// Flags for PlotText
enum ImPlotTextFlags_ {
ImPlotTextFlags_None = 0, // default
ImPlotTextFlags_Vertical = 1 << 10 // text will be rendered vertically
};
// Flags for PlotDummy (placeholder)
enum ImPlotDummyFlags_ {
ImPlotDummyFlags_None = 0 // default
};
// Represents a condition for SetupAxisLimits etc. (same as ImGuiCond, but we only support a subset of those enums)
enum ImPlotCond_
{
ImPlotCond_None = ImGuiCond_None, // No condition (always set the variable), same as _Always
ImPlotCond_Always = ImGuiCond_Always, // No condition (always set the variable)
ImPlotCond_Once = ImGuiCond_Once, // Set the variable once per runtime session (only the first call will succeed)
};
// Plot styling colors.
enum ImPlotCol_ {
// item styling colors
ImPlotCol_Line, // plot line/outline color (defaults to next unused color in current colormap)
ImPlotCol_Fill, // plot fill color for bars (defaults to the current line color)
ImPlotCol_MarkerOutline, // marker outline color (defaults to the current line color)
ImPlotCol_MarkerFill, // marker fill color (defaults to the current line color)
ImPlotCol_ErrorBar, // error bar color (defaults to ImGuiCol_Text)
// plot styling colors
ImPlotCol_FrameBg, // plot frame background color (defaults to ImGuiCol_FrameBg)
ImPlotCol_PlotBg, // plot area background color (defaults to ImGuiCol_WindowBg)
ImPlotCol_PlotBorder, // plot area border color (defaults to ImGuiCol_Border)
ImPlotCol_LegendBg, // legend background color (defaults to ImGuiCol_PopupBg)
ImPlotCol_LegendBorder, // legend border color (defaults to ImPlotCol_PlotBorder)
ImPlotCol_LegendText, // legend text color (defaults to ImPlotCol_InlayText)
ImPlotCol_TitleText, // plot title text color (defaults to ImGuiCol_Text)
ImPlotCol_InlayText, // color of text appearing inside of plots (defaults to ImGuiCol_Text)
ImPlotCol_AxisText, // axis label and tick lables color (defaults to ImGuiCol_Text)
ImPlotCol_AxisGrid, // axis grid color (defaults to 25% ImPlotCol_AxisText)
ImPlotCol_AxisTick, // axis tick color (defaults to AxisGrid)
ImPlotCol_AxisBg, // background color of axis hover region (defaults to transparent)
ImPlotCol_AxisBgHovered, // axis hover color (defaults to ImGuiCol_ButtonHovered)
ImPlotCol_AxisBgActive, // axis active color (defaults to ImGuiCol_ButtonActive)
ImPlotCol_Selection, // box-selection color (defaults to yellow)
ImPlotCol_Crosshairs, // crosshairs color (defaults to ImPlotCol_PlotBorder)
ImPlotCol_COUNT
};
// Plot styling variables.
enum ImPlotStyleVar_ {
// item styling variables
ImPlotStyleVar_LineWeight, // float, plot item line weight in pixels
ImPlotStyleVar_Marker, // int, marker specification
ImPlotStyleVar_MarkerSize, // float, marker size in pixels (roughly the marker's "radius")
ImPlotStyleVar_MarkerWeight, // float, plot outline weight of markers in pixels
ImPlotStyleVar_FillAlpha, // float, alpha modifier applied to all plot item fills
ImPlotStyleVar_ErrorBarSize, // float, error bar whisker width in pixels
ImPlotStyleVar_ErrorBarWeight, // float, error bar whisker weight in pixels
ImPlotStyleVar_DigitalBitHeight, // float, digital channels bit height (at 1) in pixels
ImPlotStyleVar_DigitalBitGap, // float, digital channels bit padding gap in pixels
// plot styling variables
ImPlotStyleVar_PlotBorderSize, // float, thickness of border around plot area
ImPlotStyleVar_MinorAlpha, // float, alpha multiplier applied to minor axis grid lines
ImPlotStyleVar_MajorTickLen, // ImVec2, major tick lengths for X and Y axes
ImPlotStyleVar_MinorTickLen, // ImVec2, minor tick lengths for X and Y axes
ImPlotStyleVar_MajorTickSize, // ImVec2, line thickness of major ticks
ImPlotStyleVar_MinorTickSize, // ImVec2, line thickness of minor ticks
ImPlotStyleVar_MajorGridSize, // ImVec2, line thickness of major grid lines
ImPlotStyleVar_MinorGridSize, // ImVec2, line thickness of minor grid lines
ImPlotStyleVar_PlotPadding, // ImVec2, padding between widget frame and plot area, labels, or outside legends (i.e. main padding)
ImPlotStyleVar_LabelPadding, // ImVec2, padding between axes labels, tick labels, and plot edge
ImPlotStyleVar_LegendPadding, // ImVec2, legend padding from plot edges
ImPlotStyleVar_LegendInnerPadding, // ImVec2, legend inner padding from legend edges
ImPlotStyleVar_LegendSpacing, // ImVec2, spacing between legend entries
ImPlotStyleVar_MousePosPadding, // ImVec2, padding between plot edge and interior info text
ImPlotStyleVar_AnnotationPadding, // ImVec2, text padding around annotation labels
ImPlotStyleVar_FitPadding, // ImVec2, additional fit padding as a percentage of the fit extents (e.g. ImVec2(0.1f,0.1f) adds 10% to the fit extents of X and Y)
ImPlotStyleVar_PlotDefaultSize, // ImVec2, default size used when ImVec2(0,0) is passed to BeginPlot
ImPlotStyleVar_PlotMinSize, // ImVec2, minimum size plot frame can be when shrunk
ImPlotStyleVar_COUNT
};
// Axis scale
enum ImPlotScale_ {
ImPlotScale_Linear = 0, // default linear scale
ImPlotScale_Time, // date/time scale
ImPlotScale_Log10, // base 10 logartithmic scale
ImPlotScale_SymLog, // symmetric log scale
};
// Marker specifications.
enum ImPlotMarker_ {
ImPlotMarker_None = -1, // no marker
ImPlotMarker_Circle, // a circle marker (default)
ImPlotMarker_Square, // a square maker
ImPlotMarker_Diamond, // a diamond marker
ImPlotMarker_Up, // an upward-pointing triangle marker
ImPlotMarker_Down, // an downward-pointing triangle marker
ImPlotMarker_Left, // an leftward-pointing triangle marker
ImPlotMarker_Right, // an rightward-pointing triangle marker
ImPlotMarker_Cross, // a cross marker (not fillable)
ImPlotMarker_Plus, // a plus marker (not fillable)
ImPlotMarker_Asterisk, // a asterisk marker (not fillable)
ImPlotMarker_COUNT
};
// Built-in colormaps
enum ImPlotColormap_ {
ImPlotColormap_Deep = 0, // a.k.a. seaborn deep (qual=true, n=10) (default)
ImPlotColormap_Dark = 1, // a.k.a. matplotlib "Set1" (qual=true, n=9 )
ImPlotColormap_Pastel = 2, // a.k.a. matplotlib "Pastel1" (qual=true, n=9 )
ImPlotColormap_Paired = 3, // a.k.a. matplotlib "Paired" (qual=true, n=12)
ImPlotColormap_Viridis = 4, // a.k.a. matplotlib "viridis" (qual=false, n=11)
ImPlotColormap_Plasma = 5, // a.k.a. matplotlib "plasma" (qual=false, n=11)
ImPlotColormap_Hot = 6, // a.k.a. matplotlib/MATLAB "hot" (qual=false, n=11)
ImPlotColormap_Cool = 7, // a.k.a. matplotlib/MATLAB "cool" (qual=false, n=11)
ImPlotColormap_Pink = 8, // a.k.a. matplotlib/MATLAB "pink" (qual=false, n=11)
ImPlotColormap_Jet = 9, // a.k.a. MATLAB "jet" (qual=false, n=11)
ImPlotColormap_Twilight = 10, // a.k.a. matplotlib "twilight" (qual=false, n=11)
ImPlotColormap_RdBu = 11, // red/blue, Color Brewer (qual=false, n=11)
ImPlotColormap_BrBG = 12, // brown/blue-green, Color Brewer (qual=false, n=11)
ImPlotColormap_PiYG = 13, // pink/yellow-green, Color Brewer (qual=false, n=11)
ImPlotColormap_Spectral = 14, // color spectrum, Color Brewer (qual=false, n=11)
ImPlotColormap_Greys = 15, // white/black (qual=false, n=2 )
};
// Used to position items on a plot (e.g. legends, labels, etc.)
enum ImPlotLocation_ {
ImPlotLocation_Center = 0, // center-center
ImPlotLocation_North = 1 << 0, // top-center
ImPlotLocation_South = 1 << 1, // bottom-center
ImPlotLocation_West = 1 << 2, // center-left
ImPlotLocation_East = 1 << 3, // center-right
ImPlotLocation_NorthWest = ImPlotLocation_North | ImPlotLocation_West, // top-left
ImPlotLocation_NorthEast = ImPlotLocation_North | ImPlotLocation_East, // top-right
ImPlotLocation_SouthWest = ImPlotLocation_South | ImPlotLocation_West, // bottom-left
ImPlotLocation_SouthEast = ImPlotLocation_South | ImPlotLocation_East // bottom-right
};
// Enums for different automatic histogram binning methods (k = bin count or w = bin width)
enum ImPlotBin_ {
ImPlotBin_Sqrt = -1, // k = sqrt(n)
ImPlotBin_Sturges = -2, // k = 1 + log2(n)
ImPlotBin_Rice = -3, // k = 2 * cbrt(n)
ImPlotBin_Scott = -4, // w = 3.49 * sigma / cbrt(n)
};
// Double precision version of ImVec2 used by ImPlot. Extensible by end users.
struct ImPlotPoint {
double x, y;
ImPlotPoint() { x = y = 0.0; }
ImPlotPoint(double _x, double _y) { x = _x; y = _y; }
ImPlotPoint(const ImVec2& p) { x = p.x; y = p.y; }
double operator[] (size_t idx) const { return (&x)[idx]; }
double& operator[] (size_t idx) { return (&x)[idx]; }
#ifdef IMPLOT_POINT_CLASS_EXTRA
IMPLOT_POINT_CLASS_EXTRA // Define additional constructors and implicit cast operators in imconfig.h
// to convert back and forth between your math types and ImPlotPoint.
#endif
};
// Range defined by a min/max value.
struct ImPlotRange {
double Min, Max;
ImPlotRange() { Min = 0; Max = 0; }
ImPlotRange(double _min, double _max) { Min = _min; Max = _max; }
bool Contains(double value) const { return value >= Min && value <= Max; }
double Size() const { return Max - Min; }
double Clamp(double value) const { return (value < Min) ? Min : (value > Max) ? Max : value; }
};
// Combination of two range limits for X and Y axes. Also an AABB defined by Min()/Max().
struct ImPlotRect {
ImPlotRange X, Y;
ImPlotRect() { }
ImPlotRect(double x_min, double x_max, double y_min, double y_max) { X.Min = x_min; X.Max = x_max; Y.Min = y_min; Y.Max = y_max; }
bool Contains(const ImPlotPoint& p) const { return Contains(p.x, p.y); }
bool Contains(double x, double y) const { return X.Contains(x) && Y.Contains(y); }
ImPlotPoint Size() const { return ImPlotPoint(X.Size(), Y.Size()); }
ImPlotPoint Clamp(const ImPlotPoint& p) { return Clamp(p.x, p.y); }
ImPlotPoint Clamp(double x, double y) { return ImPlotPoint(X.Clamp(x),Y.Clamp(y)); }
ImPlotPoint Min() const { return ImPlotPoint(X.Min, Y.Min); }
ImPlotPoint Max() const { return ImPlotPoint(X.Max, Y.Max); }
};
// Plot style structure
struct ImPlotStyle {
// item styling variables
float LineWeight; // = 1, item line weight in pixels
int Marker; // = ImPlotMarker_None, marker specification
float MarkerSize; // = 4, marker size in pixels (roughly the marker's "radius")
float MarkerWeight; // = 1, outline weight of markers in pixels
float FillAlpha; // = 1, alpha modifier applied to plot fills
float ErrorBarSize; // = 5, error bar whisker width in pixels
float ErrorBarWeight; // = 1.5, error bar whisker weight in pixels
float DigitalBitHeight; // = 8, digital channels bit height (at y = 1.0f) in pixels
float DigitalBitGap; // = 4, digital channels bit padding gap in pixels
// plot styling variables
float PlotBorderSize; // = 1, line thickness of border around plot area
float MinorAlpha; // = 0.25 alpha multiplier applied to minor axis grid lines
ImVec2 MajorTickLen; // = 10,10 major tick lengths for X and Y axes
ImVec2 MinorTickLen; // = 5,5 minor tick lengths for X and Y axes
ImVec2 MajorTickSize; // = 1,1 line thickness of major ticks
ImVec2 MinorTickSize; // = 1,1 line thickness of minor ticks
ImVec2 MajorGridSize; // = 1,1 line thickness of major grid lines
ImVec2 MinorGridSize; // = 1,1 line thickness of minor grid lines
ImVec2 PlotPadding; // = 10,10 padding between widget frame and plot area, labels, or outside legends (i.e. main padding)
ImVec2 LabelPadding; // = 5,5 padding between axes labels, tick labels, and plot edge
ImVec2 LegendPadding; // = 10,10 legend padding from plot edges
ImVec2 LegendInnerPadding; // = 5,5 legend inner padding from legend edges
ImVec2 LegendSpacing; // = 5,0 spacing between legend entries
ImVec2 MousePosPadding; // = 10,10 padding between plot edge and interior mouse location text
ImVec2 AnnotationPadding; // = 2,2 text padding around annotation labels
ImVec2 FitPadding; // = 0,0 additional fit padding as a percentage of the fit extents (e.g. ImVec2(0.1f,0.1f) adds 10% to the fit extents of X and Y)
ImVec2 PlotDefaultSize; // = 400,300 default size used when ImVec2(0,0) is passed to BeginPlot
ImVec2 PlotMinSize; // = 200,150 minimum size plot frame can be when shrunk
// style colors
ImVec4 Colors[ImPlotCol_COUNT]; // Array of styling colors. Indexable with ImPlotCol_ enums.
// colormap
ImPlotColormap Colormap; // The current colormap. Set this to either an ImPlotColormap_ enum or an index returned by AddColormap.
// settings/flags
bool UseLocalTime; // = false, axis labels will be formatted for your timezone when ImPlotAxisFlag_Time is enabled
bool UseISO8601; // = false, dates will be formatted according to ISO 8601 where applicable (e.g. YYYY-MM-DD, YYYY-MM, --MM-DD, etc.)
bool Use24HourClock; // = false, times will be formatted using a 24 hour clock
IMPLOT_API ImPlotStyle();
};
// Support for legacy versions
#if (IMGUI_VERSION_NUM < 18716) // Renamed in 1.88
#define ImGuiMod_None 0
#define ImGuiMod_Ctrl ImGuiKeyModFlags_Ctrl
#define ImGuiMod_Shift ImGuiKeyModFlags_Shift
#define ImGuiMod_Alt ImGuiKeyModFlags_Alt
#define ImGuiMod_Super ImGuiKeyModFlags_Super
#elif (IMGUI_VERSION_NUM < 18823) // Renamed in 1.89, sorry
#define ImGuiMod_None 0
#define ImGuiMod_Ctrl ImGuiModFlags_Ctrl
#define ImGuiMod_Shift ImGuiModFlags_Shift
#define ImGuiMod_Alt ImGuiModFlags_Alt
#define ImGuiMod_Super ImGuiModFlags_Super
#endif
// Input mapping structure. Default values listed. See also MapInputDefault, MapInputReverse.
struct ImPlotInputMap {
ImGuiMouseButton Pan; // LMB enables panning when held,
int PanMod; // none optional modifier that must be held for panning/fitting
ImGuiMouseButton Fit; // LMB initiates fit when double clicked
ImGuiMouseButton Select; // RMB begins box selection when pressed and confirms selection when released
ImGuiMouseButton SelectCancel; // LMB cancels active box selection when pressed; cannot be same as Select
int SelectMod; // none optional modifier that must be held for box selection
int SelectHorzMod; // Alt expands active box selection horizontally to plot edge when held
int SelectVertMod; // Shift expands active box selection vertically to plot edge when held
ImGuiMouseButton Menu; // RMB opens context menus (if enabled) when clicked
int OverrideMod; // Ctrl when held, all input is ignored; used to enable axis/plots as DND sources
int ZoomMod; // none optional modifier that must be held for scroll wheel zooming
float ZoomRate; // 0.1f zoom rate for scroll (e.g. 0.1f = 10% plot range every scroll click); make negative to invert
IMPLOT_API ImPlotInputMap();
};
//-----------------------------------------------------------------------------
// [SECTION] Callbacks
//-----------------------------------------------------------------------------
// Callback signature for axis tick label formatter.
typedef int (*ImPlotFormatter)(double value, char* buff, int size, void* user_data);
// Callback signature for data getter.
typedef ImPlotPoint (*ImPlotGetter)(int idx, void* user_data);
// Callback signature for axis transform.
typedef double (*ImPlotTransform)(double value, void* user_data);
namespace ImPlot {
//-----------------------------------------------------------------------------
// [SECTION] Contexts
//-----------------------------------------------------------------------------
// Creates a new ImPlot context. Call this after ImGui::CreateContext.
IMPLOT_API ImPlotContext* CreateContext();
// Destroys an ImPlot context. Call this before ImGui::DestroyContext. NULL = destroy current context.
IMPLOT_API void DestroyContext(ImPlotContext* ctx = NULL);
// Returns the current ImPlot context. NULL if no context has ben set.
IMPLOT_API ImPlotContext* GetCurrentContext();
// Sets the current ImPlot context.
IMPLOT_API void SetCurrentContext(ImPlotContext* ctx);
// Sets the current **ImGui** context. This is ONLY necessary if you are compiling
// ImPlot as a DLL (not recommended) separate from your ImGui compilation. It
// sets the global variable GImGui, which is not shared across DLL boundaries.
// See GImGui documentation in imgui.cpp for more details.
IMPLOT_API void SetImGuiContext(ImGuiContext* ctx);
//-----------------------------------------------------------------------------
// [SECTION] Begin/End Plot
//-----------------------------------------------------------------------------
// Starts a 2D plotting context. If this function returns true, EndPlot() MUST
// be called! You are encouraged to use the following convention:
//
// if (BeginPlot(...)) {
// PlotLine(...);
// ...
// EndPlot();
// }
//
// Important notes:
//
// - #title_id must be unique to the current ImGui ID scope. If you need to avoid ID
// collisions or don't want to display a title in the plot, use double hashes
// (e.g. "MyPlot##HiddenIdText" or "##NoTitle").
// - #size is the **frame** size of the plot widget, not the plot area. The default
// size of plots (i.e. when ImVec2(0,0)) can be modified in your ImPlotStyle.
IMPLOT_API bool BeginPlot(const char* title_id, const ImVec2& size=ImVec2(-1,0), ImPlotFlags flags=0);
// Only call EndPlot() if BeginPlot() returns true! Typically called at the end
// of an if statement conditioned on BeginPlot(). See example above.
IMPLOT_API void EndPlot();
//-----------------------------------------------------------------------------
// [SECTION] Begin/End Subplots
//-----------------------------------------------------------------------------
// Starts a subdivided plotting context. If the function returns true,
// EndSubplots() MUST be called! Call BeginPlot/EndPlot AT MOST [rows*cols]
// times in between the begining and end of the subplot context. Plots are
// added in row major order.
//
// Example:
//
// if (BeginSubplots("My Subplot",2,3,ImVec2(800,400)) {
// for (int i = 0; i < 6; ++i) {
// if (BeginPlot(...)) {
// ImPlot::PlotLine(...);
// ...
// EndPlot();
// }
// }
// EndSubplots();
// }
//
// Produces:
//
// [0] | [1] | [2]
// ----|-----|----
// [3] | [4] | [5]
//
// Important notes:
//
// - #title_id must be unique to the current ImGui ID scope. If you need to avoid ID
// collisions or don't want to display a title in the plot, use double hashes
// (e.g. "MySubplot##HiddenIdText" or "##NoTitle").
// - #rows and #cols must be greater than 0.
// - #size is the size of the entire grid of subplots, not the individual plots
// - #row_ratios and #col_ratios must have AT LEAST #rows and #cols elements,
// respectively. These are the sizes of the rows and columns expressed in ratios.
// If the user adjusts the dimensions, the arrays are updated with new ratios.
//
// Important notes regarding BeginPlot from inside of BeginSubplots:
//
// - The #title_id parameter of _BeginPlot_ (see above) does NOT have to be
// unique when called inside of a subplot context. Subplot IDs are hashed
// for your convenience so you don't have call PushID or generate unique title
// strings. Simply pass an empty string to BeginPlot unless you want to title
// each subplot.
// - The #size parameter of _BeginPlot_ (see above) is ignored when inside of a
// subplot context. The actual size of the subplot will be based on the
// #size value you pass to _BeginSubplots_ and #row/#col_ratios if provided.
IMPLOT_API bool BeginSubplots(const char* title_id,
int rows,
int cols,
const ImVec2& size,
ImPlotSubplotFlags flags = 0,
float* row_ratios = NULL,
float* col_ratios = NULL);
// Only call EndSubplots() if BeginSubplots() returns true! Typically called at the end
// of an if statement conditioned on BeginSublots(). See example above.
IMPLOT_API void EndSubplots();
//-----------------------------------------------------------------------------
// [SECTION] Setup
//-----------------------------------------------------------------------------
// The following API allows you to setup and customize various aspects of the
// current plot. The functions should be called immediately after BeginPlot
// and before any other API calls. Typical usage is as follows:
// if (BeginPlot(...)) { 1) begin a new plot
// SetupAxis(ImAxis_X1, "My X-Axis"); 2) make Setup calls
// SetupAxis(ImAxis_Y1, "My Y-Axis");
// SetupLegend(ImPlotLocation_North);
// ...
// SetupFinish(); 3) [optional] explicitly finish setup
// PlotLine(...); 4) plot items
// ...
// EndPlot(); 5) end the plot
// }
//
// Important notes:
//
// - Always call Setup code at the top of your BeginPlot conditional statement.
// - Setup is locked once you start plotting or explicitly call SetupFinish.
// Do NOT call Setup code after you begin plotting or after you make
// any non-Setup API calls (e.g. utils like PlotToPixels also lock Setup)
// - Calling SetupFinish is OPTIONAL, but probably good practice. If you do not
// call it yourself, then the first subsequent plotting or utility function will
// call it for you.
// Enables an axis or sets the label and/or flags for an existing axis. Leave #label = NULL for no label.
IMPLOT_API void SetupAxis(ImAxis axis, const char* label=NULL, ImPlotAxisFlags flags=0);
// Sets an axis range limits. If ImPlotCond_Always is used, the axes limits will be locked.
IMPLOT_API void SetupAxisLimits(ImAxis axis, double v_min, double v_max, ImPlotCond cond = ImPlotCond_Once);
// Links an axis range limits to external values. Set to NULL for no linkage. The pointer data must remain valid until EndPlot.
IMPLOT_API void SetupAxisLinks(ImAxis axis, double* link_min, double* link_max);
// Sets the format of numeric axis labels via formater specifier (default="%g"). Formated values will be double (i.e. use %f).
IMPLOT_API void SetupAxisFormat(ImAxis axis, const char* fmt);
// Sets the format of numeric axis labels via formatter callback. Given #value, write a label into #buff. Optionally pass user data.
IMPLOT_API void SetupAxisFormat(ImAxis axis, ImPlotFormatter formatter, void* data=NULL);
// Sets an axis' ticks and optionally the labels. To keep the default ticks, set #keep_default=true.
IMPLOT_API void SetupAxisTicks(ImAxis axis, const double* values, int n_ticks, const char* const labels[]=NULL, bool keep_default=false);
// Sets an axis' ticks and optionally the labels for the next plot. To keep the default ticks, set #keep_default=true.
IMPLOT_API void SetupAxisTicks(ImAxis axis, double v_min, double v_max, int n_ticks, const char* const labels[]=NULL, bool keep_default=false);
// Sets an axis' scale using built-in options.
IMPLOT_API void SetupAxisScale(ImAxis axis, ImPlotScale scale);
// Sets an axis' scale using user supplied forward and inverse transfroms.
IMPLOT_API void SetupAxisScale(ImAxis axis, ImPlotTransform forward, ImPlotTransform inverse, void* data=NULL);
// Sets an axis' limits constraints.
IMPLOT_API void SetupAxisLimitsConstraints(ImAxis axis, double v_min, double v_max);
// Sets an axis' zoom constraints.
IMPLOT_API void SetupAxisZoomConstraints(ImAxis axis, double z_min, double z_max);
// Sets the label and/or flags for primary X and Y axes (shorthand for two calls to SetupAxis).
IMPLOT_API void SetupAxes(const char* x_label, const char* y_label, ImPlotAxisFlags x_flags=0, ImPlotAxisFlags y_flags=0);
// Sets the primary X and Y axes range limits. If ImPlotCond_Always is used, the axes limits will be locked (shorthand for two calls to SetupAxisLimits).
IMPLOT_API void SetupAxesLimits(double x_min, double x_max, double y_min, double y_max, ImPlotCond cond = ImPlotCond_Once);
// Sets up the plot legend.
IMPLOT_API void SetupLegend(ImPlotLocation location, ImPlotLegendFlags flags=0);
// Set the location of the current plot's mouse position text (default = South|East).
IMPLOT_API void SetupMouseText(ImPlotLocation location, ImPlotMouseTextFlags flags=0);
// Explicitly finalize plot setup. Once you call this, you cannot make anymore Setup calls for the current plot!
// Note that calling this function is OPTIONAL; it will be called by the first subsequent setup-locking API call.
IMPLOT_API void SetupFinish();
//-----------------------------------------------------------------------------
// [SECTION] SetNext
//-----------------------------------------------------------------------------
// Though you should default to the `Setup` API above, there are some scenarios
// where (re)configuring a plot or axis before `BeginPlot` is needed (e.g. if
// using a preceding button or slider widget to change the plot limits). In
// this case, you can use the `SetNext` API below. While this is not as feature
// rich as the Setup API, most common needs are provided. These functions can be
// called anwhere except for inside of `Begin/EndPlot`. For example:
// if (ImGui::Button("Center Plot"))
// ImPlot::SetNextPlotLimits(-1,1,-1,1);
// if (ImPlot::BeginPlot(...)) {
// ...
// ImPlot::EndPlot();
// }
//
// Important notes:
//
// - You must still enable non-default axes with SetupAxis for these functions
// to work properly.
// Sets an upcoming axis range limits. If ImPlotCond_Always is used, the axes limits will be locked.
IMPLOT_API void SetNextAxisLimits(ImAxis axis, double v_min, double v_max, ImPlotCond cond = ImPlotCond_Once);
// Links an upcoming axis range limits to external values. Set to NULL for no linkage. The pointer data must remain valid until EndPlot!
IMPLOT_API void SetNextAxisLinks(ImAxis axis, double* link_min, double* link_max);
// Set an upcoming axis to auto fit to its data.
IMPLOT_API void SetNextAxisToFit(ImAxis axis);
// Sets the upcoming primary X and Y axes range limits. If ImPlotCond_Always is used, the axes limits will be locked (shorthand for two calls to SetupAxisLimits).
IMPLOT_API void SetNextAxesLimits(double x_min, double x_max, double y_min, double y_max, ImPlotCond cond = ImPlotCond_Once);
// Sets all upcoming axes to auto fit to their data.
IMPLOT_API void SetNextAxesToFit();
//-----------------------------------------------------------------------------
// [SECTION] Plot Items
//-----------------------------------------------------------------------------
// The main plotting API is provied below. Call these functions between
// Begin/EndPlot and after any Setup API calls. Each plots data on the current
// x and y axes, which can be changed with `SetAxis/Axes`.
//
// The templated functions are explicitly instantiated in implot_items.cpp.
// They are not intended to be used generically with custom types. You will get
// a linker error if you try! All functions support the following scalar types:
//
// float, double, ImS8, ImU8, ImS16, ImU16, ImS32, ImU32, ImS64, ImU64
//
//
// If you need to plot custom or non-homogenous data you have a few options:
//
// 1. If your data is a simple struct/class (e.g. Vector2f), you can use striding.
// This is the most performant option if applicable.
//
// struct Vector2f { float X, Y; };
// ...
// Vector2f data[42];
// ImPlot::PlotLine("line", &data[0].x, &data[0].y, 42, 0, 0, sizeof(Vector2f));
//
// 2. Write a custom getter C function or C++ lambda and pass it and optionally your data to
// an ImPlot function post-fixed with a G (e.g. PlotScatterG). This has a slight performance
// cost, but probably not enough to worry about unless your data is very large. Examples:
//
// ImPlotPoint MyDataGetter(void* data, int idx) {
// MyData* my_data = (MyData*)data;
// ImPlotPoint p;
// p.x = my_data->GetTime(idx);
// p.y = my_data->GetValue(idx);
// return p
// }
// ...
// auto my_lambda = [](int idx, void*) {
// double t = idx / 999.0;
// return ImPlotPoint(t, 0.5+0.5*std::sin(2*PI*10*t));
// };
// ...
// if (ImPlot::BeginPlot("MyPlot")) {
// MyData my_data;
// ImPlot::PlotScatterG("scatter", MyDataGetter, &my_data, my_data.Size());
// ImPlot::PlotLineG("line", my_lambda, nullptr, 1000);
// ImPlot::EndPlot();
// }
//
// NB: All types are converted to double before plotting. You may lose information
// if you try plotting extremely large 64-bit integral types. Proceed with caution!
// Plots a standard 2D line plot.
IMPLOT_TMP void PlotLine(const char* label_id, const T* values, int count, double xscale=1, double xstart=0, ImPlotLineFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotLine(const char* label_id, const T* xs, const T* ys, int count, ImPlotLineFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_API void PlotLineG(const char* label_id, ImPlotGetter getter, void* data, int count, ImPlotLineFlags flags=0);
// Plots a standard 2D scatter plot. Default marker is ImPlotMarker_Circle.
IMPLOT_TMP void PlotScatter(const char* label_id, const T* values, int count, double xscale=1, double xstart=0, ImPlotScatterFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotScatter(const char* label_id, const T* xs, const T* ys, int count, ImPlotScatterFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_API void PlotScatterG(const char* label_id, ImPlotGetter getter, void* data, int count, ImPlotScatterFlags flags=0);
// Plots a a stairstep graph. The y value is continued constantly to the right from every x position, i.e. the interval [x[i], x[i+1]) has the value y[i]
IMPLOT_TMP void PlotStairs(const char* label_id, const T* values, int count, double xscale=1, double xstart=0, ImPlotStairsFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotStairs(const char* label_id, const T* xs, const T* ys, int count, ImPlotStairsFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_API void PlotStairsG(const char* label_id, ImPlotGetter getter, void* data, int count, ImPlotStairsFlags flags=0);
// Plots a shaded (filled) region between two lines, or a line and a horizontal reference. Set yref to +/-INFINITY for infinite fill extents.
IMPLOT_TMP void PlotShaded(const char* label_id, const T* values, int count, double yref=0, double xscale=1, double xstart=0, ImPlotShadedFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotShaded(const char* label_id, const T* xs, const T* ys, int count, double yref=0, ImPlotShadedFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotShaded(const char* label_id, const T* xs, const T* ys1, const T* ys2, int count, ImPlotShadedFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_API void PlotShadedG(const char* label_id, ImPlotGetter getter1, void* data1, ImPlotGetter getter2, void* data2, int count, ImPlotShadedFlags flags=0);
// Plots a bar graph. Vertical by default. #bar_size and #shift are in plot units.
IMPLOT_TMP void PlotBars(const char* label_id, const T* values, int count, double bar_size=0.67, double shift=0, ImPlotBarsFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotBars(const char* label_id, const T* xs, const T* ys, int count, double bar_size, ImPlotBarsFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_API void PlotBarsG(const char* label_id, ImPlotGetter getter, void* data, int count, double bar_size, ImPlotBarsFlags flags=0);
// Plots a group of bars. #values is a row-major matrix with #item_count rows and #group_count cols. #label_ids should have #item_count elements.
IMPLOT_TMP void PlotBarGroups(const char* const label_ids[], const T* values, int item_count, int group_count, double group_size=0.67, double shift=0, ImPlotBarGroupsFlags flags=0);
// Plots vertical error bar. The label_id should be the same as the label_id of the associated line or bar plot.
IMPLOT_TMP void PlotErrorBars(const char* label_id, const T* xs, const T* ys, const T* err, int count, ImPlotErrorBarsFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotErrorBars(const char* label_id, const T* xs, const T* ys, const T* neg, const T* pos, int count, ImPlotErrorBarsFlags flags=0, int offset=0, int stride=sizeof(T));
// Plots stems. Vertical by default.
IMPLOT_TMP void PlotStems(const char* label_id, const T* values, int count, double ref=0, double scale=1, double start=0, ImPlotStemsFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_TMP void PlotStems(const char* label_id, const T* xs, const T* ys, int count, double ref=0, ImPlotStemsFlags flags=0, int offset=0, int stride=sizeof(T));
// Plots infinite vertical or horizontal lines (e.g. for references or asymptotes).
IMPLOT_TMP void PlotInfLines(const char* label_id, const T* values, int count, ImPlotInfLinesFlags flags=0, int offset=0, int stride=sizeof(T));
// Plots a pie chart. Center and radius are in plot units. #label_fmt can be set to NULL for no labels.
IMPLOT_TMP void PlotPieChart(const char* const label_ids[], const T* values, int count, double x, double y, double radius, const char* label_fmt="%.1f", double angle0=90, ImPlotPieChartFlags flags=0);
// Plots a 2D heatmap chart. Values are expected to be in row-major order by default. Leave #scale_min and scale_max both at 0 for automatic color scaling, or set them to a predefined range. #label_fmt can be set to NULL for no labels.
IMPLOT_TMP void PlotHeatmap(const char* label_id, const T* values, int rows, int cols, double scale_min=0, double scale_max=0, const char* label_fmt="%.1f", const ImPlotPoint& bounds_min=ImPlotPoint(0,0), const ImPlotPoint& bounds_max=ImPlotPoint(1,1), ImPlotHeatmapFlags flags=0);
// Plots a horizontal histogram. #bins can be a positive integer or an ImPlotBin_ method. If #range is left unspecified, the min/max of #values will be used as the range.
// Otherwise, outlier values outside of the range are not binned. The largest bin count or density is returned.
IMPLOT_TMP double PlotHistogram(const char* label_id, const T* values, int count, int bins=ImPlotBin_Sturges, double bar_scale=1.0, ImPlotRange range=ImPlotRange(), ImPlotHistogramFlags flags=0);
// Plots two dimensional, bivariate histogram as a heatmap. #x_bins and #y_bins can be a positive integer or an ImPlotBin. If #range is left unspecified, the min/max of
// #xs an #ys will be used as the ranges. Otherwise, outlier values outside of range are not binned. The largest bin count or density is returned.
IMPLOT_TMP double PlotHistogram2D(const char* label_id, const T* xs, const T* ys, int count, int x_bins=ImPlotBin_Sturges, int y_bins=ImPlotBin_Sturges, ImPlotRect range=ImPlotRect(), ImPlotHistogramFlags flags=0);
// Plots digital data. Digital plots do not respond to y drag or zoom, and are always referenced to the bottom of the plot.
IMPLOT_TMP void PlotDigital(const char* label_id, const T* xs, const T* ys, int count, ImPlotDigitalFlags flags=0, int offset=0, int stride=sizeof(T));
IMPLOT_API void PlotDigitalG(const char* label_id, ImPlotGetter getter, void* data, int count, ImPlotDigitalFlags flags=0);
// Plots an axis-aligned image. #bounds_min/bounds_max are in plot coordinates (y-up) and #uv0/uv1 are in texture coordinates (y-down).
IMPLOT_API void PlotImage(const char* label_id, ImTextureID user_texture_id, const ImPlotPoint& bounds_min, const ImPlotPoint& bounds_max, const ImVec2& uv0=ImVec2(0,0), const ImVec2& uv1=ImVec2(1,1), const ImVec4& tint_col=ImVec4(1,1,1,1), ImPlotImageFlags flags=0);
// Plots a centered text label at point x,y with an optional pixel offset. Text color can be changed with ImPlot::PushStyleColor(ImPlotCol_InlayText, ...).
IMPLOT_API void PlotText(const char* text, double x, double y, const ImVec2& pix_offset=ImVec2(0,0), ImPlotTextFlags flags=0);
// Plots a dummy item (i.e. adds a legend entry colored by ImPlotCol_Line)
IMPLOT_API void PlotDummy(const char* label_id, ImPlotDummyFlags flags=0);
//-----------------------------------------------------------------------------
// [SECTION] Plot Tools
//-----------------------------------------------------------------------------
// The following can be used to render interactive elements and/or annotations.
// Like the item plotting functions above, they apply to the current x and y
// axes, which can be changed with `SetAxis/SetAxes`.
// Shows a draggable point at x,y. #col defaults to ImGuiCol_Text.
IMPLOT_API bool DragPoint(int id, double* x, double* y, const ImVec4& col, float size = 4, ImPlotDragToolFlags flags=0);
// Shows a draggable vertical guide line at an x-value. #col defaults to ImGuiCol_Text.
IMPLOT_API bool DragLineX(int id, double* x, const ImVec4& col, float thickness = 1, ImPlotDragToolFlags flags=0);
// Shows a draggable horizontal guide line at a y-value. #col defaults to ImGuiCol_Text.
IMPLOT_API bool DragLineY(int id, double* y, const ImVec4& col, float thickness = 1, ImPlotDragToolFlags flags=0);
// Shows a draggable and resizeable rectangle.
IMPLOT_API bool DragRect(int id, double* x1, double* y1, double* x2, double* y2, const ImVec4& col, ImPlotDragToolFlags flags=0);
// Shows an annotation callout at a chosen point. Clamping keeps annotations in the plot area. Annotations are always rendered on top.
IMPLOT_API void Annotation(double x, double y, const ImVec4& col, const ImVec2& pix_offset, bool clamp, bool round = false);
IMPLOT_API void Annotation(double x, double y, const ImVec4& col, const ImVec2& pix_offset, bool clamp, const char* fmt, ...) IM_FMTARGS(6);
IMPLOT_API void AnnotationV(double x, double y, const ImVec4& col, const ImVec2& pix_offset, bool clamp, const char* fmt, va_list args) IM_FMTLIST(6);
// Shows a x-axis tag at the specified coordinate value.
IMPLOT_API void TagX(double x, const ImVec4& col, bool round = false);
IMPLOT_API void TagX(double x, const ImVec4& col, const char* fmt, ...) IM_FMTARGS(3);
IMPLOT_API void TagXV(double x, const ImVec4& col, const char* fmt, va_list args) IM_FMTLIST(3);
// Shows a y-axis tag at the specified coordinate value.
IMPLOT_API void TagY(double y, const ImVec4& col, bool round = false);
IMPLOT_API void TagY(double y, const ImVec4& col, const char* fmt, ...) IM_FMTARGS(3);
IMPLOT_API void TagYV(double y, const ImVec4& col, const char* fmt, va_list args) IM_FMTLIST(3);
//-----------------------------------------------------------------------------
// [SECTION] Plot Utils
//-----------------------------------------------------------------------------
// Select which axis/axes will be used for subsequent plot elements.
IMPLOT_API void SetAxis(ImAxis axis);
IMPLOT_API void SetAxes(ImAxis x_axis, ImAxis y_axis);
// Convert pixels to a position in the current plot's coordinate system. Passing IMPLOT_AUTO uses the current axes.
IMPLOT_API ImPlotPoint PixelsToPlot(const ImVec2& pix, ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
IMPLOT_API ImPlotPoint PixelsToPlot(float x, float y, ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
// Convert a position in the current plot's coordinate system to pixels. Passing IMPLOT_AUTO uses the current axes.
IMPLOT_API ImVec2 PlotToPixels(const ImPlotPoint& plt, ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
IMPLOT_API ImVec2 PlotToPixels(double x, double y, ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
// Get the current Plot position (top-left) in pixels.
IMPLOT_API ImVec2 GetPlotPos();
// Get the curent Plot size in pixels.
IMPLOT_API ImVec2 GetPlotSize();
// Returns the mouse position in x,y coordinates of the current plot. Passing IMPLOT_AUTO uses the current axes.
IMPLOT_API ImPlotPoint GetPlotMousePos(ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
// Returns the current plot axis range.
IMPLOT_API ImPlotRect GetPlotLimits(ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
// Returns true if the plot area in the current plot is hovered.
IMPLOT_API bool IsPlotHovered();
// Returns true if the axis label area in the current plot is hovered.
IMPLOT_API bool IsAxisHovered(ImAxis axis);
// Returns true if the bounding frame of a subplot is hovered.
IMPLOT_API bool IsSubplotsHovered();
// Returns true if the current plot is being box selected.
IMPLOT_API bool IsPlotSelected();
// Returns the current plot box selection bounds. Passing IMPLOT_AUTO uses the current axes.
IMPLOT_API ImPlotRect GetPlotSelection(ImAxis x_axis = IMPLOT_AUTO, ImAxis y_axis = IMPLOT_AUTO);
// Cancels a the current plot box selection.
IMPLOT_API void CancelPlotSelection();
// Hides or shows the next plot item (i.e. as if it were toggled from the legend).
// Use ImPlotCond_Always if you need to forcefully set this every frame.
IMPLOT_API void HideNextItem(bool hidden = true, ImPlotCond cond = ImPlotCond_Once);
// Use the following around calls to Begin/EndPlot to align l/r/t/b padding.
// Consider using Begin/EndSubplots first. They are more feature rich and
// accomplish the same behaviour by default. The functions below offer lower
// level control of plot alignment.
// Align axis padding over multiple plots in a single row or column. #group_id must
// be unique. If this function returns true, EndAlignedPlots() must be called.
IMPLOT_API bool BeginAlignedPlots(const char* group_id, bool vertical = true);
// Only call EndAlignedPlots() if BeginAlignedPlots() returns true!
IMPLOT_API void EndAlignedPlots();
//-----------------------------------------------------------------------------
// [SECTION] Legend Utils
//-----------------------------------------------------------------------------
// Begin a popup for a legend entry.
IMPLOT_API bool BeginLegendPopup(const char* label_id, ImGuiMouseButton mouse_button=1);
// End a popup for a legend entry.
IMPLOT_API void EndLegendPopup();
// Returns true if a plot item legend entry is hovered.
IMPLOT_API bool IsLegendEntryHovered(const char* label_id);
//-----------------------------------------------------------------------------
// [SECTION] Drag and Drop
//-----------------------------------------------------------------------------
// Turns the current plot's plotting area into a drag and drop target. Don't forget to call EndDragDropTarget!
IMPLOT_API bool BeginDragDropTargetPlot();
// Turns the current plot's X-axis into a drag and drop target. Don't forget to call EndDragDropTarget!
IMPLOT_API bool BeginDragDropTargetAxis(ImAxis axis);
// Turns the current plot's legend into a drag and drop target. Don't forget to call EndDragDropTarget!
IMPLOT_API bool BeginDragDropTargetLegend();
// Ends a drag and drop target (currently just an alias for ImGui::EndDragDropTarget).
IMPLOT_API void EndDragDropTarget();
// NB: By default, plot and axes drag and drop *sources* require holding the Ctrl modifier to initiate the drag.
// You can change the modifier if desired. If ImGuiMod_None is provided, the axes will be locked from panning.
// Turns the current plot's plotting area into a drag and drop source. You must hold Ctrl. Don't forget to call EndDragDropSource!
IMPLOT_API bool BeginDragDropSourcePlot(ImGuiDragDropFlags flags=0);
// Turns the current plot's X-axis into a drag and drop source. You must hold Ctrl. Don't forget to call EndDragDropSource!
IMPLOT_API bool BeginDragDropSourceAxis(ImAxis axis, ImGuiDragDropFlags flags=0);
// Turns an item in the current plot's legend into drag and drop source. Don't forget to call EndDragDropSource!
IMPLOT_API bool BeginDragDropSourceItem(const char* label_id, ImGuiDragDropFlags flags=0);
// Ends a drag and drop source (currently just an alias for ImGui::EndDragDropSource).
IMPLOT_API void EndDragDropSource();
//-----------------------------------------------------------------------------
// [SECTION] Styling
//-----------------------------------------------------------------------------
// Styling colors in ImPlot works similarly to styling colors in ImGui, but
// with one important difference. Like ImGui, all style colors are stored in an
// indexable array in ImPlotStyle. You can permanently modify these values through
// GetStyle().Colors, or temporarily modify them with Push/Pop functions below.
// However, by default all style colors in ImPlot default to a special color
// IMPLOT_AUTO_COL. The behavior of this color depends upon the style color to
// which it as applied:
//
// 1) For style colors associated with plot items (e.g. ImPlotCol_Line),
// IMPLOT_AUTO_COL tells ImPlot to color the item with the next unused
// color in the current colormap. Thus, every item will have a different
// color up to the number of colors in the colormap, at which point the
// colormap will roll over. For most use cases, you should not need to
// set these style colors to anything but IMPLOT_COL_AUTO; you are
// probably better off changing the current colormap. However, if you
// need to explicitly color a particular item you may either Push/Pop
// the style color around the item in question, or use the SetNextXXXStyle
// API below. If you permanently set one of these style colors to a specific
// color, or forget to call Pop, then all subsequent items will be styled
// with the color you set.
//
// 2) For style colors associated with plot styling (e.g. ImPlotCol_PlotBg),
// IMPLOT_AUTO_COL tells ImPlot to set that color from color data in your
// **ImGuiStyle**. The ImGuiCol_ that these style colors default to are
// detailed above, and in general have been mapped to produce plots visually
// consistent with your current ImGui style. Of course, you are free to
// manually set these colors to whatever you like, and further can Push/Pop
// them around individual plots for plot-specific styling (e.g. coloring axes).
// Provides access to plot style structure for permanant modifications to colors, sizes, etc.
IMPLOT_API ImPlotStyle& GetStyle();
// Style plot colors for current ImGui style (default).
IMPLOT_API void StyleColorsAuto(ImPlotStyle* dst = NULL);
// Style plot colors for ImGui "Classic".
IMPLOT_API void StyleColorsClassic(ImPlotStyle* dst = NULL);
// Style plot colors for ImGui "Dark".
IMPLOT_API void StyleColorsDark(ImPlotStyle* dst = NULL);
// Style plot colors for ImGui "Light".
IMPLOT_API void StyleColorsLight(ImPlotStyle* dst = NULL);
// Use PushStyleX to temporarily modify your ImPlotStyle. The modification
// will last until the matching call to PopStyleX. You MUST call a pop for
// every push, otherwise you will leak memory! This behaves just like ImGui.
// Temporarily modify a style color. Don't forget to call PopStyleColor!
IMPLOT_API void PushStyleColor(ImPlotCol idx, ImU32 col);
IMPLOT_API void PushStyleColor(ImPlotCol idx, const ImVec4& col);
// Undo temporary style color modification(s). Undo multiple pushes at once by increasing count.
IMPLOT_API void PopStyleColor(int count = 1);
// Temporarily modify a style variable of float type. Don't forget to call PopStyleVar!
IMPLOT_API void PushStyleVar(ImPlotStyleVar idx, float val);
// Temporarily modify a style variable of int type. Don't forget to call PopStyleVar!
IMPLOT_API void PushStyleVar(ImPlotStyleVar idx, int val);
// Temporarily modify a style variable of ImVec2 type. Don't forget to call PopStyleVar!
IMPLOT_API void PushStyleVar(ImPlotStyleVar idx, const ImVec2& val);
// Undo temporary style variable modification(s). Undo multiple pushes at once by increasing count.
IMPLOT_API void PopStyleVar(int count = 1);
// The following can be used to modify the style of the next plot item ONLY. They do
// NOT require calls to PopStyleX. Leave style attributes you don't want modified to
// IMPLOT_AUTO or IMPLOT_AUTO_COL. Automatic styles will be deduced from the current
// values in your ImPlotStyle or from Colormap data.
// Set the line color and weight for the next item only.
IMPLOT_API void SetNextLineStyle(const ImVec4& col = IMPLOT_AUTO_COL, float weight = IMPLOT_AUTO);
// Set the fill color for the next item only.
IMPLOT_API void SetNextFillStyle(const ImVec4& col = IMPLOT_AUTO_COL, float alpha_mod = IMPLOT_AUTO);
// Set the marker style for the next item only.
IMPLOT_API void SetNextMarkerStyle(ImPlotMarker marker = IMPLOT_AUTO, float size = IMPLOT_AUTO, const ImVec4& fill = IMPLOT_AUTO_COL, float weight = IMPLOT_AUTO, const ImVec4& outline = IMPLOT_AUTO_COL);
// Set the error bar style for the next item only.
IMPLOT_API void SetNextErrorBarStyle(const ImVec4& col = IMPLOT_AUTO_COL, float size = IMPLOT_AUTO, float weight = IMPLOT_AUTO);
// Gets the last item primary color (i.e. its legend icon color)
IMPLOT_API ImVec4 GetLastItemColor();
// Returns the null terminated string name for an ImPlotCol.
IMPLOT_API const char* GetStyleColorName(ImPlotCol idx);
// Returns the null terminated string name for an ImPlotMarker.
IMPLOT_API const char* GetMarkerName(ImPlotMarker idx);
//-----------------------------------------------------------------------------
// [SECTION] Colormaps
//-----------------------------------------------------------------------------
// Item styling is based on colormaps when the relevant ImPlotCol_XXX is set to
// IMPLOT_AUTO_COL (default). Several built-in colormaps are available. You can
// add and then push/pop your own colormaps as well. To permanently set a colormap,
// modify the Colormap index member of your ImPlotStyle.
// Colormap data will be ignored and a custom color will be used if you have done one of the following:
// 1) Modified an item style color in your ImPlotStyle to anything other than IMPLOT_AUTO_COL.
// 2) Pushed an item style color using PushStyleColor().
// 3) Set the next item style with a SetNextXXXStyle function.
// Add a new colormap. The color data will be copied. The colormap can be used by pushing either the returned index or the
// string name with PushColormap. The colormap name must be unique and the size must be greater than 1. You will receive
// an assert otherwise! By default colormaps are considered to be qualitative (i.e. discrete). If you want to create a
// continuous colormap, set #qual=false. This will treat the colors you provide as keys, and ImPlot will build a linearly
// interpolated lookup table. The memory footprint of this table will be exactly ((size-1)*255+1)*4 bytes.
IMPLOT_API ImPlotColormap AddColormap(const char* name, const ImVec4* cols, int size, bool qual=true);
IMPLOT_API ImPlotColormap AddColormap(const char* name, const ImU32* cols, int size, bool qual=true);
// Returns the number of available colormaps (i.e. the built-in + user-added count).
IMPLOT_API int GetColormapCount();
// Returns a null terminated string name for a colormap given an index. Returns NULL if index is invalid.
IMPLOT_API const char* GetColormapName(ImPlotColormap cmap);
// Returns an index number for a colormap given a valid string name. Returns -1 if name is invalid.
IMPLOT_API ImPlotColormap GetColormapIndex(const char* name);
// Temporarily switch to one of the built-in (i.e. ImPlotColormap_XXX) or user-added colormaps (i.e. a return value of AddColormap). Don't forget to call PopColormap!
IMPLOT_API void PushColormap(ImPlotColormap cmap);
// Push a colormap by string name. Use built-in names such as "Default", "Deep", "Jet", etc. or a string you provided to AddColormap. Don't forget to call PopColormap!
IMPLOT_API void PushColormap(const char* name);
// Undo temporary colormap modification(s). Undo multiple pushes at once by increasing count.
IMPLOT_API void PopColormap(int count = 1);
// Returns the next color from the current colormap and advances the colormap for the current plot.
// Can also be used with no return value to skip colors if desired. You need to call this between Begin/EndPlot!
IMPLOT_API ImVec4 NextColormapColor();
// Colormap utils. If cmap = IMPLOT_AUTO (default), the current colormap is assumed.
// Pass an explicit colormap index (built-in or user-added) to specify otherwise.
// Returns the size of a colormap.
IMPLOT_API int GetColormapSize(ImPlotColormap cmap = IMPLOT_AUTO);
// Returns a color from a colormap given an index >= 0 (modulo will be performed).
IMPLOT_API ImVec4 GetColormapColor(int idx, ImPlotColormap cmap = IMPLOT_AUTO);
// Sample a color from the current colormap given t between 0 and 1.
IMPLOT_API ImVec4 SampleColormap(float t, ImPlotColormap cmap = IMPLOT_AUTO);
// Shows a vertical color scale with linear spaced ticks using the specified color map. Use double hashes to hide label (e.g. "##NoLabel"). If scale_min > scale_max, the scale to color mapping will be reversed.
IMPLOT_API void ColormapScale(const char* label, double scale_min, double scale_max, const ImVec2& size = ImVec2(0,0), const char* format = "%g", ImPlotColormapScaleFlags flags = 0, ImPlotColormap cmap = IMPLOT_AUTO);
// Shows a horizontal slider with a colormap gradient background. Optionally returns the color sampled at t in [0 1].
IMPLOT_API bool ColormapSlider(const char* label, float* t, ImVec4* out = NULL, const char* format = "", ImPlotColormap cmap = IMPLOT_AUTO);
// Shows a button with a colormap gradient brackground.
IMPLOT_API bool ColormapButton(const char* label, const ImVec2& size = ImVec2(0,0), ImPlotColormap cmap = IMPLOT_AUTO);
// When items in a plot sample their color from a colormap, the color is cached and does not change
// unless explicitly overriden. Therefore, if you change the colormap after the item has already been plotted,
// item colors will NOT update. If you need item colors to resample the new colormap, then use this
// function to bust the cached colors. If #plot_title_id is NULL, then every item in EVERY existing plot
// will be cache busted. Otherwise only the plot specified by #plot_title_id will be busted. For the
// latter, this function must be called in the same ImGui ID scope that the plot is in. You should rarely if ever
// need this function, but it is available for applications that require runtime colormap swaps (e.g. Heatmaps demo).
IMPLOT_API void BustColorCache(const char* plot_title_id = NULL);
//-----------------------------------------------------------------------------
// [SECTION] Input Mapping
//-----------------------------------------------------------------------------
// Provides access to input mapping structure for permanant modifications to controls for pan, select, etc.
IMPLOT_API ImPlotInputMap& GetInputMap();
// Default input mapping: pan = LMB drag, box select = RMB drag, fit = LMB double click, context menu = RMB click, zoom = scroll.
IMPLOT_API void MapInputDefault(ImPlotInputMap* dst = NULL);
// Reverse input mapping: pan = RMB drag, box select = LMB drag, fit = LMB double click, context menu = RMB click, zoom = scroll.
IMPLOT_API void MapInputReverse(ImPlotInputMap* dst = NULL);
//-----------------------------------------------------------------------------
// [SECTION] Miscellaneous
//-----------------------------------------------------------------------------
// Render icons similar to those that appear in legends (nifty for data lists).
IMPLOT_API void ItemIcon(const ImVec4& col);
IMPLOT_API void ItemIcon(ImU32 col);
IMPLOT_API void ColormapIcon(ImPlotColormap cmap);
// Get the plot draw list for custom rendering to the current plot area. Call between Begin/EndPlot.
IMPLOT_API ImDrawList* GetPlotDrawList();
// Push clip rect for rendering to current plot area. The rect can be expanded or contracted by #expand pixels. Call between Begin/EndPlot.
IMPLOT_API void PushPlotClipRect(float expand=0);
// Pop plot clip rect. Call between Begin/EndPlot.
IMPLOT_API void PopPlotClipRect();
// Shows ImPlot style selector dropdown menu.
IMPLOT_API bool ShowStyleSelector(const char* label);
// Shows ImPlot colormap selector dropdown menu.
IMPLOT_API bool ShowColormapSelector(const char* label);
// Shows ImPlot input map selector dropdown menu.
IMPLOT_API bool ShowInputMapSelector(const char* label);
// Shows ImPlot style editor block (not a window).
IMPLOT_API void ShowStyleEditor(ImPlotStyle* ref = NULL);
// Add basic help/info block for end users (not a window).
IMPLOT_API void ShowUserGuide();
// Shows ImPlot metrics/debug information window.
IMPLOT_API void ShowMetricsWindow(bool* p_popen = NULL);
//-----------------------------------------------------------------------------
// [SECTION] Demo
//-----------------------------------------------------------------------------
// Shows the ImPlot demo window (add implot_demo.cpp to your sources!)
IMPLOT_API void ShowDemoWindow(bool* p_open = NULL);
} // namespace ImPlot
//-----------------------------------------------------------------------------
// [SECTION] Obsolete API
//-----------------------------------------------------------------------------
// The following functions will be removed! Keep your copy of implot up to date!
// Occasionally set '#define IMPLOT_DISABLE_OBSOLETE_FUNCTIONS' to stay ahead.
// If you absolutely must use these functions and do not want to receive compiler
// warnings, set '#define IMPLOT_DISABLE_OBSOLETE_WARNINGS'.
#ifndef IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#ifndef IMPLOT_DISABLE_DEPRECATED_WARNINGS
#if __cplusplus > 201402L
#define IMPLOT_DEPRECATED(method) [[deprecated]] method
#elif defined( __GNUC__ ) && !defined( __INTEL_COMPILER ) && ( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 1 ) )
#define IMPLOT_DEPRECATED(method) method __attribute__( ( deprecated ) )
#elif defined( _MSC_VER )
#define IMPLOT_DEPRECATED(method) __declspec(deprecated) method
#else
#define IMPLOT_DEPRECATED(method) method
#endif
#else
#define IMPLOT_DEPRECATED(method) method
#endif
enum ImPlotFlagsObsolete_ {
ImPlotFlags_YAxis2 = 1 << 20,
ImPlotFlags_YAxis3 = 1 << 21,
};
namespace ImPlot {
// OBSOLETED in v0.13 -> PLANNED REMOVAL in v1.0
IMPLOT_DEPRECATED( IMPLOT_API bool BeginPlot(const char* title_id,
const char* x_label, // = NULL,
const char* y_label, // = NULL,
const ImVec2& size = ImVec2(-1,0),
ImPlotFlags flags = ImPlotFlags_None,
ImPlotAxisFlags x_flags = 0,
ImPlotAxisFlags y_flags = 0,
ImPlotAxisFlags y2_flags = ImPlotAxisFlags_AuxDefault,
ImPlotAxisFlags y3_flags = ImPlotAxisFlags_AuxDefault,
const char* y2_label = NULL,
const char* y3_label = NULL) );
} // namespace ImPlot
#endif
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imstb_truetype.h | // [DEAR IMGUI]
// This is a slightly modified version of stb_truetype.h 1.26.
// Mostly fixing for compiler and static analyzer warnings.
// Grep for [DEAR IMGUI] to find the changes.
// stb_truetype.h - v1.26 - public domain
// authored from 2009-2021 by Sean Barrett / RAD Game Tools
//
// =======================================================================
//
// NO SECURITY GUARANTEE -- DO NOT USE THIS ON UNTRUSTED FONT FILES
//
// This library does no range checking of the offsets found in the file,
// meaning an attacker can use it to read arbitrary memory.
//
// =======================================================================
//
// This library processes TrueType files:
// parse files
// extract glyph metrics
// extract glyph shapes
// render glyphs to one-channel bitmaps with antialiasing (box filter)
// render glyphs to one-channel SDF bitmaps (signed-distance field/function)
//
// Todo:
// non-MS cmaps
// crashproof on bad data
// hinting? (no longer patented)
// cleartype-style AA?
// optimize: use simple memory allocator for intermediates
// optimize: build edge-list directly from curves
// optimize: rasterize directly from curves?
//
// ADDITIONAL CONTRIBUTORS
//
// Mikko Mononen: compound shape support, more cmap formats
// Tor Andersson: kerning, subpixel rendering
// Dougall Johnson: OpenType / Type 2 font handling
// Daniel Ribeiro Maciel: basic GPOS-based kerning
//
// Misc other:
// Ryan Gordon
// Simon Glass
// github:IntellectualKitty
// Imanol Celaya
// Daniel Ribeiro Maciel
//
// Bug/warning reports/fixes:
// "Zer" on mollyrocket Fabian "ryg" Giesen github:NiLuJe
// Cass Everitt Martins Mozeiko github:aloucks
// stoiko (Haemimont Games) Cap Petschulat github:oyvindjam
// Brian Hook Omar Cornut github:vassvik
// Walter van Niftrik Ryan Griege
// David Gow Peter LaValle
// David Given Sergey Popov
// Ivan-Assen Ivanov Giumo X. Clanjor
// Anthony Pesch Higor Euripedes
// Johan Duparc Thomas Fields
// Hou Qiming Derek Vinyard
// Rob Loach Cort Stratton
// Kenney Phillis Jr. Brian Costabile
// Ken Voskuil (kaesve)
//
// VERSION HISTORY
//
// 1.26 (2021-08-28) fix broken rasterizer
// 1.25 (2021-07-11) many fixes
// 1.24 (2020-02-05) fix warning
// 1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
// 1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
// 1.21 (2019-02-25) fix warning
// 1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
// 1.19 (2018-02-11) GPOS kerning, STBTT_fmod
// 1.18 (2018-01-29) add missing function
// 1.17 (2017-07-23) make more arguments const; doc fix
// 1.16 (2017-07-12) SDF support
// 1.15 (2017-03-03) make more arguments const
// 1.14 (2017-01-16) num-fonts-in-TTC function
// 1.13 (2017-01-02) support OpenType fonts, certain Apple fonts
// 1.12 (2016-10-25) suppress warnings about casting away const with -Wcast-qual
// 1.11 (2016-04-02) fix unused-variable warning
// 1.10 (2016-04-02) user-defined fabs(); rare memory leak; remove duplicate typedef
// 1.09 (2016-01-16) warning fix; avoid crash on outofmem; use allocation userdata properly
// 1.08 (2015-09-13) document stbtt_Rasterize(); fixes for vertical & horizontal edges
// 1.07 (2015-08-01) allow PackFontRanges to accept arrays of sparse codepoints;
// variant PackFontRanges to pack and render in separate phases;
// fix stbtt_GetFontOFfsetForIndex (never worked for non-0 input?);
// fixed an assert() bug in the new rasterizer
// replace assert() with STBTT_assert() in new rasterizer
//
// Full history can be found at the end of this file.
//
// LICENSE
//
// See end of file for license information.
//
// USAGE
//
// Include this file in whatever places need to refer to it. In ONE C/C++
// file, write:
// #define STB_TRUETYPE_IMPLEMENTATION
// before the #include of this file. This expands out the actual
// implementation into that C/C++ file.
//
// To make the implementation private to the file that generates the implementation,
// #define STBTT_STATIC
//
// Simple 3D API (don't ship this, but it's fine for tools and quick start)
// stbtt_BakeFontBitmap() -- bake a font to a bitmap for use as texture
// stbtt_GetBakedQuad() -- compute quad to draw for a given char
//
// Improved 3D API (more shippable):
// #include "stb_rect_pack.h" -- optional, but you really want it
// stbtt_PackBegin()
// stbtt_PackSetOversampling() -- for improved quality on small fonts
// stbtt_PackFontRanges() -- pack and renders
// stbtt_PackEnd()
// stbtt_GetPackedQuad()
//
// "Load" a font file from a memory buffer (you have to keep the buffer loaded)
// stbtt_InitFont()
// stbtt_GetFontOffsetForIndex() -- indexing for TTC font collections
// stbtt_GetNumberOfFonts() -- number of fonts for TTC font collections
//
// Render a unicode codepoint to a bitmap
// stbtt_GetCodepointBitmap() -- allocates and returns a bitmap
// stbtt_MakeCodepointBitmap() -- renders into bitmap you provide
// stbtt_GetCodepointBitmapBox() -- how big the bitmap must be
//
// Character advance/positioning
// stbtt_GetCodepointHMetrics()
// stbtt_GetFontVMetrics()
// stbtt_GetFontVMetricsOS2()
// stbtt_GetCodepointKernAdvance()
//
// Starting with version 1.06, the rasterizer was replaced with a new,
// faster and generally-more-precise rasterizer. The new rasterizer more
// accurately measures pixel coverage for anti-aliasing, except in the case
// where multiple shapes overlap, in which case it overestimates the AA pixel
// coverage. Thus, anti-aliasing of intersecting shapes may look wrong. If
// this turns out to be a problem, you can re-enable the old rasterizer with
// #define STBTT_RASTERIZER_VERSION 1
// which will incur about a 15% speed hit.
//
// ADDITIONAL DOCUMENTATION
//
// Immediately after this block comment are a series of sample programs.
//
// After the sample programs is the "header file" section. This section
// includes documentation for each API function.
//
// Some important concepts to understand to use this library:
//
// Codepoint
// Characters are defined by unicode codepoints, e.g. 65 is
// uppercase A, 231 is lowercase c with a cedilla, 0x7e30 is
// the hiragana for "ma".
//
// Glyph
// A visual character shape (every codepoint is rendered as
// some glyph)
//
// Glyph index
// A font-specific integer ID representing a glyph
//
// Baseline
// Glyph shapes are defined relative to a baseline, which is the
// bottom of uppercase characters. Characters extend both above
// and below the baseline.
//
// Current Point
// As you draw text to the screen, you keep track of a "current point"
// which is the origin of each character. The current point's vertical
// position is the baseline. Even "baked fonts" use this model.
//
// Vertical Font Metrics
// The vertical qualities of the font, used to vertically position
// and space the characters. See docs for stbtt_GetFontVMetrics.
//
// Font Size in Pixels or Points
// The preferred interface for specifying font sizes in stb_truetype
// is to specify how tall the font's vertical extent should be in pixels.
// If that sounds good enough, skip the next paragraph.
//
// Most font APIs instead use "points", which are a common typographic
// measurement for describing font size, defined as 72 points per inch.
// stb_truetype provides a point API for compatibility. However, true
// "per inch" conventions don't make much sense on computer displays
// since different monitors have different number of pixels per
// inch. For example, Windows traditionally uses a convention that
// there are 96 pixels per inch, thus making 'inch' measurements have
// nothing to do with inches, and thus effectively defining a point to
// be 1.333 pixels. Additionally, the TrueType font data provides
// an explicit scale factor to scale a given font's glyphs to points,
// but the author has observed that this scale factor is often wrong
// for non-commercial fonts, thus making fonts scaled in points
// according to the TrueType spec incoherently sized in practice.
//
// DETAILED USAGE:
//
// Scale:
// Select how high you want the font to be, in points or pixels.
// Call ScaleForPixelHeight or ScaleForMappingEmToPixels to compute
// a scale factor SF that will be used by all other functions.
//
// Baseline:
// You need to select a y-coordinate that is the baseline of where
// your text will appear. Call GetFontBoundingBox to get the baseline-relative
// bounding box for all characters. SF*-y0 will be the distance in pixels
// that the worst-case character could extend above the baseline, so if
// you want the top edge of characters to appear at the top of the
// screen where y=0, then you would set the baseline to SF*-y0.
//
// Current point:
// Set the current point where the first character will appear. The
// first character could extend left of the current point; this is font
// dependent. You can either choose a current point that is the leftmost
// point and hope, or add some padding, or check the bounding box or
// left-side-bearing of the first character to be displayed and set
// the current point based on that.
//
// Displaying a character:
// Compute the bounding box of the character. It will contain signed values
// relative to <current_point, baseline>. I.e. if it returns x0,y0,x1,y1,
// then the character should be displayed in the rectangle from
// <current_point+SF*x0, baseline+SF*y0> to <current_point+SF*x1,baseline+SF*y1).
//
// Advancing for the next character:
// Call GlyphHMetrics, and compute 'current_point += SF * advance'.
//
//
// ADVANCED USAGE
//
// Quality:
//
// - Use the functions with Subpixel at the end to allow your characters
// to have subpixel positioning. Since the font is anti-aliased, not
// hinted, this is very import for quality. (This is not possible with
// baked fonts.)
//
// - Kerning is now supported, and if you're supporting subpixel rendering
// then kerning is worth using to give your text a polished look.
//
// Performance:
//
// - Convert Unicode codepoints to glyph indexes and operate on the glyphs;
// if you don't do this, stb_truetype is forced to do the conversion on
// every call.
//
// - There are a lot of memory allocations. We should modify it to take
// a temp buffer and allocate from the temp buffer (without freeing),
// should help performance a lot.
//
// NOTES
//
// The system uses the raw data found in the .ttf file without changing it
// and without building auxiliary data structures. This is a bit inefficient
// on little-endian systems (the data is big-endian), but assuming you're
// caching the bitmaps or glyph shapes this shouldn't be a big deal.
//
// It appears to be very hard to programmatically determine what font a
// given file is in a general way. I provide an API for this, but I don't
// recommend it.
//
//
// PERFORMANCE MEASUREMENTS FOR 1.06:
//
// 32-bit 64-bit
// Previous release: 8.83 s 7.68 s
// Pool allocations: 7.72 s 6.34 s
// Inline sort : 6.54 s 5.65 s
// New rasterizer : 5.63 s 5.00 s
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
////
//// SAMPLE PROGRAMS
////
//
// Incomplete text-in-3d-api example, which draws quads properly aligned to be lossless.
// See "tests/truetype_demo_win32.c" for a complete version.
#if 0
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
#include "stb_truetype.h"
unsigned char ttf_buffer[1<<20];
unsigned char temp_bitmap[512*512];
stbtt_bakedchar cdata[96]; // ASCII 32..126 is 95 glyphs
GLuint ftex;
void my_stbtt_initfont(void)
{
fread(ttf_buffer, 1, 1<<20, fopen("c:/windows/fonts/times.ttf", "rb"));
stbtt_BakeFontBitmap(ttf_buffer,0, 32.0, temp_bitmap,512,512, 32,96, cdata); // no guarantee this fits!
// can free ttf_buffer at this point
glGenTextures(1, &ftex);
glBindTexture(GL_TEXTURE_2D, ftex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 512,512, 0, GL_ALPHA, GL_UNSIGNED_BYTE, temp_bitmap);
// can free temp_bitmap at this point
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
void my_stbtt_print(float x, float y, char *text)
{
// assume orthographic projection with units = screen pixels, origin at top left
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, ftex);
glBegin(GL_QUADS);
while (*text) {
if (*text >= 32 && *text < 128) {
stbtt_aligned_quad q;
stbtt_GetBakedQuad(cdata, 512,512, *text-32, &x,&y,&q,1);//1=opengl & d3d10+,0=d3d9
glTexCoord2f(q.s0,q.t0); glVertex2f(q.x0,q.y0);
glTexCoord2f(q.s1,q.t0); glVertex2f(q.x1,q.y0);
glTexCoord2f(q.s1,q.t1); glVertex2f(q.x1,q.y1);
glTexCoord2f(q.s0,q.t1); glVertex2f(q.x0,q.y1);
}
++text;
}
glEnd();
}
#endif
//
//
//////////////////////////////////////////////////////////////////////////////
//
// Complete program (this compiles): get a single bitmap, print as ASCII art
//
#if 0
#include <stdio.h>
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
#include "stb_truetype.h"
char ttf_buffer[1<<25];
int main(int argc, char **argv)
{
stbtt_fontinfo font;
unsigned char *bitmap;
int w,h,i,j,c = (argc > 1 ? atoi(argv[1]) : 'a'), s = (argc > 2 ? atoi(argv[2]) : 20);
fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/arialbd.ttf", "rb"));
stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, s), c, &w, &h, 0,0);
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i)
putchar(" .:ioVM@"[bitmap[j*w+i]>>5]);
putchar('\n');
}
return 0;
}
#endif
//
// Output:
//
// .ii.
// @@@@@@.
// V@Mio@@o
// :i. V@V
// :oM@@M
// :@@@MM@M
// @@o o@M
// :@@. M@M
// @@@o@@@@
// :M@@V:@@.
//
//////////////////////////////////////////////////////////////////////////////
//
// Complete program: print "Hello World!" banner, with bugs
//
#if 0
char buffer[24<<20];
unsigned char screen[20][79];
int main(int arg, char **argv)
{
stbtt_fontinfo font;
int i,j,ascent,baseline,ch=0;
float scale, xpos=2; // leave a little padding in case the character extends left
char *text = "Heljo World!"; // intentionally misspelled to show 'lj' brokenness
fread(buffer, 1, 1000000, fopen("c:/windows/fonts/arialbd.ttf", "rb"));
stbtt_InitFont(&font, buffer, 0);
scale = stbtt_ScaleForPixelHeight(&font, 15);
stbtt_GetFontVMetrics(&font, &ascent,0,0);
baseline = (int) (ascent*scale);
while (text[ch]) {
int advance,lsb,x0,y0,x1,y1;
float x_shift = xpos - (float) floor(xpos);
stbtt_GetCodepointHMetrics(&font, text[ch], &advance, &lsb);
stbtt_GetCodepointBitmapBoxSubpixel(&font, text[ch], scale,scale,x_shift,0, &x0,&y0,&x1,&y1);
stbtt_MakeCodepointBitmapSubpixel(&font, &screen[baseline + y0][(int) xpos + x0], x1-x0,y1-y0, 79, scale,scale,x_shift,0, text[ch]);
// note that this stomps the old data, so where character boxes overlap (e.g. 'lj') it's wrong
// because this API is really for baking character bitmaps into textures. if you want to render
// a sequence of characters, you really need to render each bitmap to a temp buffer, then
// "alpha blend" that into the working buffer
xpos += (advance * scale);
if (text[ch+1])
xpos += scale*stbtt_GetCodepointKernAdvance(&font, text[ch],text[ch+1]);
++ch;
}
for (j=0; j < 20; ++j) {
for (i=0; i < 78; ++i)
putchar(" .:ioVM@"[screen[j][i]>>5]);
putchar('\n');
}
return 0;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
////
//// INTEGRATION WITH YOUR CODEBASE
////
//// The following sections allow you to supply alternate definitions
//// of C library functions used by stb_truetype, e.g. if you don't
//// link with the C runtime library.
#ifdef STB_TRUETYPE_IMPLEMENTATION
// #define your own (u)stbtt_int8/16/32 before including to override this
#ifndef stbtt_uint8
typedef unsigned char stbtt_uint8;
typedef signed char stbtt_int8;
typedef unsigned short stbtt_uint16;
typedef signed short stbtt_int16;
typedef unsigned int stbtt_uint32;
typedef signed int stbtt_int32;
#endif
typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
// e.g. #define your own STBTT_ifloor/STBTT_iceil() to avoid math.h
#ifndef STBTT_ifloor
#include <math.h>
#define STBTT_ifloor(x) ((int) floor(x))
#define STBTT_iceil(x) ((int) ceil(x))
#endif
#ifndef STBTT_sqrt
#include <math.h>
#define STBTT_sqrt(x) sqrt(x)
#define STBTT_pow(x,y) pow(x,y)
#endif
#ifndef STBTT_fmod
#include <math.h>
#define STBTT_fmod(x,y) fmod(x,y)
#endif
#ifndef STBTT_cos
#include <math.h>
#define STBTT_cos(x) cos(x)
#define STBTT_acos(x) acos(x)
#endif
#ifndef STBTT_fabs
#include <math.h>
#define STBTT_fabs(x) fabs(x)
#endif
// #define your own functions "STBTT_malloc" / "STBTT_free" to avoid malloc.h
#ifndef STBTT_malloc
#include <stdlib.h>
#define STBTT_malloc(x,u) ((void)(u),malloc(x))
#define STBTT_free(x,u) ((void)(u),free(x))
#endif
#ifndef STBTT_assert
#include <assert.h>
#define STBTT_assert(x) assert(x)
#endif
#ifndef STBTT_strlen
#include <string.h>
#define STBTT_strlen(x) strlen(x)
#endif
#ifndef STBTT_memcpy
#include <string.h>
#define STBTT_memcpy memcpy
#define STBTT_memset memset
#endif
#endif
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
////
//// INTERFACE
////
////
#ifndef __STB_INCLUDE_STB_TRUETYPE_H__
#define __STB_INCLUDE_STB_TRUETYPE_H__
#ifdef STBTT_STATIC
#define STBTT_DEF static
#else
#define STBTT_DEF extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
// private structure
typedef struct
{
unsigned char *data;
int cursor;
int size;
} stbtt__buf;
//////////////////////////////////////////////////////////////////////////////
//
// TEXTURE BAKING API
//
// If you use this API, you only have to call two functions ever.
//
typedef struct
{
unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
float xoff,yoff,xadvance;
} stbtt_bakedchar;
STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset, // font location (use offset=0 for plain .ttf)
float pixel_height, // height of font in pixels
unsigned char *pixels, int pw, int ph, // bitmap to be filled in
int first_char, int num_chars, // characters to bake
stbtt_bakedchar *chardata); // you allocate this, it's num_chars long
// if return is positive, the first unused row of the bitmap
// if return is negative, returns the negative of the number of characters that fit
// if return is 0, no characters fit and no rows were used
// This uses a very crappy packing.
typedef struct
{
float x0,y0,s0,t0; // top-left
float x1,y1,s1,t1; // bottom-right
} stbtt_aligned_quad;
STBTT_DEF void stbtt_GetBakedQuad(const stbtt_bakedchar *chardata, int pw, int ph, // same data as above
int char_index, // character to display
float *xpos, float *ypos, // pointers to current position in screen pixel space
stbtt_aligned_quad *q, // output: quad to draw
int opengl_fillrule); // true if opengl fill rule; false if DX9 or earlier
// Call GetBakedQuad with char_index = 'character - first_char', and it
// creates the quad you need to draw and advances the current position.
//
// The coordinate system used assumes y increases downwards.
//
// Characters will extend both above and below the current position;
// see discussion of "BASELINE" above.
//
// It's inefficient; you might want to c&p it and optimize it.
STBTT_DEF void stbtt_GetScaledFontVMetrics(const unsigned char *fontdata, int index, float size, float *ascent, float *descent, float *lineGap);
// Query the font vertical metrics without having to create a font first.
//////////////////////////////////////////////////////////////////////////////
//
// NEW TEXTURE BAKING API
//
// This provides options for packing multiple fonts into one atlas, not
// perfectly but better than nothing.
typedef struct
{
unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
float xoff,yoff,xadvance;
float xoff2,yoff2;
} stbtt_packedchar;
typedef struct stbtt_pack_context stbtt_pack_context;
typedef struct stbtt_fontinfo stbtt_fontinfo;
#ifndef STB_RECT_PACK_VERSION
typedef struct stbrp_rect stbrp_rect;
#endif
STBTT_DEF int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int width, int height, int stride_in_bytes, int padding, void *alloc_context);
// Initializes a packing context stored in the passed-in stbtt_pack_context.
// Future calls using this context will pack characters into the bitmap passed
// in here: a 1-channel bitmap that is width * height. stride_in_bytes is
// the distance from one row to the next (or 0 to mean they are packed tightly
// together). "padding" is the amount of padding to leave between each
// character (normally you want '1' for bitmaps you'll use as textures with
// bilinear filtering).
//
// Returns 0 on failure, 1 on success.
STBTT_DEF void stbtt_PackEnd (stbtt_pack_context *spc);
// Cleans up the packing context and frees all memory.
#define STBTT_POINT_SIZE(x) (-(x))
STBTT_DEF int stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range);
// Creates character bitmaps from the font_index'th font found in fontdata (use
// font_index=0 if you don't know what that is). It creates num_chars_in_range
// bitmaps for characters with unicode values starting at first_unicode_char_in_range
// and increasing. Data for how to render them is stored in chardata_for_range;
// pass these to stbtt_GetPackedQuad to get back renderable quads.
//
// font_size is the full height of the character from ascender to descender,
// as computed by stbtt_ScaleForPixelHeight. To use a point size as computed
// by stbtt_ScaleForMappingEmToPixels, wrap the point size in STBTT_POINT_SIZE()
// and pass that result as 'font_size':
// ..., 20 , ... // font max minus min y is 20 pixels tall
// ..., STBTT_POINT_SIZE(20), ... // 'M' is 20 pixels tall
typedef struct
{
float font_size;
int first_unicode_codepoint_in_range; // if non-zero, then the chars are continuous, and this is the first codepoint
int *array_of_unicode_codepoints; // if non-zero, then this is an array of unicode codepoints
int num_chars;
stbtt_packedchar *chardata_for_range; // output
unsigned char h_oversample, v_oversample; // don't set these, they're used internally
} stbtt_pack_range;
STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges);
// Creates character bitmaps from multiple ranges of characters stored in
// ranges. This will usually create a better-packed bitmap than multiple
// calls to stbtt_PackFontRange. Note that you can call this multiple
// times within a single PackBegin/PackEnd.
STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample);
// Oversampling a font increases the quality by allowing higher-quality subpixel
// positioning, and is especially valuable at smaller text sizes.
//
// This function sets the amount of oversampling for all following calls to
// stbtt_PackFontRange(s) or stbtt_PackFontRangesGatherRects for a given
// pack context. The default (no oversampling) is achieved by h_oversample=1
// and v_oversample=1. The total number of pixels required is
// h_oversample*v_oversample larger than the default; for example, 2x2
// oversampling requires 4x the storage of 1x1. For best results, render
// oversampled textures with bilinear filtering. Look at the readme in
// stb/tests/oversample for information about oversampled fonts
//
// To use with PackFontRangesGather etc., you must set it before calls
// call to PackFontRangesGatherRects.
STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip);
// If skip != 0, this tells stb_truetype to skip any codepoints for which
// there is no corresponding glyph. If skip=0, which is the default, then
// codepoints without a glyph recived the font's "missing character" glyph,
// typically an empty box by convention.
STBTT_DEF void stbtt_GetPackedQuad(const stbtt_packedchar *chardata, int pw, int ph, // same data as above
int char_index, // character to display
float *xpos, float *ypos, // pointers to current position in screen pixel space
stbtt_aligned_quad *q, // output: quad to draw
int align_to_integer);
STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects);
STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
// Calling these functions in sequence is roughly equivalent to calling
// stbtt_PackFontRanges(). If you more control over the packing of multiple
// fonts, or if you want to pack custom data into a font texture, take a look
// at the source to of stbtt_PackFontRanges() and create a custom version
// using these functions, e.g. call GatherRects multiple times,
// building up a single array of rects, then call PackRects once,
// then call RenderIntoRects repeatedly. This may result in a
// better packing than calling PackFontRanges multiple times
// (or it may not).
// this is an opaque structure that you shouldn't mess with which holds
// all the context needed from PackBegin to PackEnd.
struct stbtt_pack_context {
void *user_allocator_context;
void *pack_info;
int width;
int height;
int stride_in_bytes;
int padding;
int skip_missing;
unsigned int h_oversample, v_oversample;
unsigned char *pixels;
void *nodes;
};
//////////////////////////////////////////////////////////////////////////////
//
// FONT LOADING
//
//
STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data);
// This function will determine the number of fonts in a font file. TrueType
// collection (.ttc) files may contain multiple fonts, while TrueType font
// (.ttf) files only contain one font. The number of fonts can be used for
// indexing with the previous function where the index is between zero and one
// less than the total fonts. If an error occurs, -1 is returned.
STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index);
// Each .ttf/.ttc file may have more than one font. Each font has a sequential
// index number starting from 0. Call this function to get the font offset for
// a given index; it returns -1 if the index is out of range. A regular .ttf
// file will only define one font and it always be at offset 0, so it will
// return '0' for index 0, and -1 for all other indices.
// The following structure is defined publicly so you can declare one on
// the stack or as a global or etc, but you should treat it as opaque.
struct stbtt_fontinfo
{
void * userdata;
unsigned char * data; // pointer to .ttf file
int fontstart; // offset of start of font
int numGlyphs; // number of glyphs, needed for range checking
int loca,head,glyf,hhea,hmtx,kern,gpos,svg; // table locations as offset from start of .ttf
int index_map; // a cmap mapping for our chosen character encoding
int indexToLocFormat; // format needed to map from glyph index to glyph
stbtt__buf cff; // cff font data
stbtt__buf charstrings; // the charstring index
stbtt__buf gsubrs; // global charstring subroutines index
stbtt__buf subrs; // private charstring subroutines index
stbtt__buf fontdicts; // array of font dicts
stbtt__buf fdselect; // map from glyph to fontdict
};
STBTT_DEF int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset);
// Given an offset into the file that defines a font, this function builds
// the necessary cached info for the rest of the system. You must allocate
// the stbtt_fontinfo yourself, and stbtt_InitFont will fill it out. You don't
// need to do anything special to free it, because the contents are pure
// value data with no additional data structures. Returns 0 on failure.
//////////////////////////////////////////////////////////////////////////////
//
// CHARACTER TO GLYPH-INDEX CONVERSIOn
STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint);
// If you're going to perform multiple operations on the same character
// and you want a speed-up, call this function with the character you're
// going to process, then use glyph-based functions instead of the
// codepoint-based functions.
// Returns 0 if the character codepoint is not defined in the font.
//////////////////////////////////////////////////////////////////////////////
//
// CHARACTER PROPERTIES
//
STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float pixels);
// computes a scale factor to produce a font whose "height" is 'pixels' tall.
// Height is measured as the distance from the highest ascender to the lowest
// descender; in other words, it's equivalent to calling stbtt_GetFontVMetrics
// and computing:
// scale = pixels / (ascent - descent)
// so if you prefer to measure height by the ascent only, use a similar calculation.
STBTT_DEF float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels);
// computes a scale factor to produce a font whose EM size is mapped to
// 'pixels' tall. This is probably what traditional APIs compute, but
// I'm not positive.
STBTT_DEF void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap);
// ascent is the coordinate above the baseline the font extends; descent
// is the coordinate below the baseline the font extends (i.e. it is typically negative)
// lineGap is the spacing between one row's descent and the next row's ascent...
// so you should advance the vertical position by "*ascent - *descent + *lineGap"
// these are expressed in unscaled coordinates, so you must multiply by
// the scale factor for a given size
STBTT_DEF int stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAscent, int *typoDescent, int *typoLineGap);
// analogous to GetFontVMetrics, but returns the "typographic" values from the OS/2
// table (specific to MS/Windows TTF files).
//
// Returns 1 on success (table present), 0 on failure.
STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1);
// the bounding box around all possible characters
STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing);
// leftSideBearing is the offset from the current horizontal position to the left edge of the character
// advanceWidth is the offset from the current horizontal position to the next horizontal position
// these are expressed in unscaled coordinates
STBTT_DEF int stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2);
// an additional amount to add to the 'advance' value between ch1 and ch2
STBTT_DEF int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1);
// Gets the bounding box of the visible part of the glyph, in unscaled coordinates
STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing);
STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2);
STBTT_DEF int stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
// as above, but takes one or more glyph indices for greater efficiency
typedef struct stbtt_kerningentry
{
int glyph1; // use stbtt_FindGlyphIndex
int glyph2;
int advance;
} stbtt_kerningentry;
STBTT_DEF int stbtt_GetKerningTableLength(const stbtt_fontinfo *info);
STBTT_DEF int stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length);
// Retrieves a complete list of all of the kerning pairs provided by the font
// stbtt_GetKerningTable never writes more than table_length entries and returns how many entries it did write.
// The table will be sorted by (a.glyph1 == b.glyph1)?(a.glyph2 < b.glyph2):(a.glyph1 < b.glyph1)
//////////////////////////////////////////////////////////////////////////////
//
// GLYPH SHAPES (you probably don't need these, but they have to go before
// the bitmaps for C declaration-order reasons)
//
#ifndef STBTT_vmove // you can predefine these to use different values (but why?)
enum {
STBTT_vmove=1,
STBTT_vline,
STBTT_vcurve,
STBTT_vcubic
};
#endif
#ifndef stbtt_vertex // you can predefine this to use different values
// (we share this with other code at RAD)
#define stbtt_vertex_type short // can't use stbtt_int16 because that's not visible in the header file
typedef struct
{
stbtt_vertex_type x,y,cx,cy,cx1,cy1;
unsigned char type,padding;
} stbtt_vertex;
#endif
STBTT_DEF int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index);
// returns non-zero if nothing is drawn for this glyph
STBTT_DEF int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices);
STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **vertices);
// returns # of vertices and fills *vertices with the pointer to them
// these are expressed in "unscaled" coordinates
//
// The shape is a series of contours. Each one starts with
// a STBTT_moveto, then consists of a series of mixed
// STBTT_lineto and STBTT_curveto segments. A lineto
// draws a line from previous endpoint to its x,y; a curveto
// draws a quadratic bezier from previous endpoint to
// its x,y, using cx,cy as the bezier control point.
STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *vertices);
// frees the data allocated above
STBTT_DEF unsigned char *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl);
STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg);
STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg);
// fills svg with the character's SVG data.
// returns data size or 0 if SVG not found.
//////////////////////////////////////////////////////////////////////////////
//
// BITMAP RENDERING
//
STBTT_DEF void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata);
// frees the bitmap allocated below
STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
// allocates a large-enough single-channel 8bpp bitmap and renders the
// specified character/glyph at the specified scale into it, with
// antialiasing. 0 is no coverage (transparent), 255 is fully covered (opaque).
// *width & *height are filled out with the width & height of the bitmap,
// which is stored left-to-right, top-to-bottom.
//
// xoff/yoff are the offset it pixel space from the glyph origin to the top-left of the bitmap
STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
// the same as stbtt_GetCodepoitnBitmap, but you can specify a subpixel
// shift for the character
STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint);
// the same as stbtt_GetCodepointBitmap, but you pass in storage for the bitmap
// in the form of 'output', with row spacing of 'out_stride' bytes. the bitmap
// is clipped to out_w/out_h bytes. Call stbtt_GetCodepointBitmapBox to get the
// width and height and positioning info for it first.
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint);
// same as stbtt_MakeCodepointBitmap, but you can specify a subpixel
// shift for the character
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint);
// same as stbtt_MakeCodepointBitmapSubpixel, but prefiltering
// is performed (see stbtt_PackSetOversampling)
STBTT_DEF void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
// get the bbox of the bitmap centered around the glyph origin; so the
// bitmap width is ix1-ix0, height is iy1-iy0, and location to place
// the bitmap top left is (leftSideBearing*scale,iy0).
// (Note that the bitmap uses y-increases-down, but the shape uses
// y-increases-up, so CodepointBitmapBox and CodepointBox are inverted.)
STBTT_DEF void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
// same as stbtt_GetCodepointBitmapBox, but you can specify a subpixel
// shift for the character
// the following functions are equivalent to the above functions, but operate
// on glyph indices instead of Unicode codepoints (for efficiency)
STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff);
STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff);
STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph);
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph);
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int glyph);
STBTT_DEF void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
STBTT_DEF void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
// @TODO: don't expose this structure
typedef struct
{
int w,h,stride;
unsigned char *pixels;
} stbtt__bitmap;
// rasterize a shape with quadratic beziers into a bitmap
STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, // 1-channel bitmap to draw into
float flatness_in_pixels, // allowable error of curve in pixels
stbtt_vertex *vertices, // array of vertices defining shape
int num_verts, // number of vertices in above array
float scale_x, float scale_y, // scale applied to input vertices
float shift_x, float shift_y, // translation applied to input vertices
int x_off, int y_off, // another translation applied to input
int invert, // if non-zero, vertically flip shape
void *userdata); // context for to STBTT_MALLOC
//////////////////////////////////////////////////////////////////////////////
//
// Signed Distance Function (or Field) rendering
STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata);
// frees the SDF bitmap allocated below
STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float scale, int glyph, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff);
STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff);
// These functions compute a discretized SDF field for a single character, suitable for storing
// in a single-channel texture, sampling with bilinear filtering, and testing against
// larger than some threshold to produce scalable fonts.
// info -- the font
// scale -- controls the size of the resulting SDF bitmap, same as it would be creating a regular bitmap
// glyph/codepoint -- the character to generate the SDF for
// padding -- extra "pixels" around the character which are filled with the distance to the character (not 0),
// which allows effects like bit outlines
// onedge_value -- value 0-255 to test the SDF against to reconstruct the character (i.e. the isocontour of the character)
// pixel_dist_scale -- what value the SDF should increase by when moving one SDF "pixel" away from the edge (on the 0..255 scale)
// if positive, > onedge_value is inside; if negative, < onedge_value is inside
// width,height -- output height & width of the SDF bitmap (including padding)
// xoff,yoff -- output origin of the character
// return value -- a 2D array of bytes 0..255, width*height in size
//
// pixel_dist_scale & onedge_value are a scale & bias that allows you to make
// optimal use of the limited 0..255 for your application, trading off precision
// and special effects. SDF values outside the range 0..255 are clamped to 0..255.
//
// Example:
// scale = stbtt_ScaleForPixelHeight(22)
// padding = 5
// onedge_value = 180
// pixel_dist_scale = 180/5.0 = 36.0
//
// This will create an SDF bitmap in which the character is about 22 pixels
// high but the whole bitmap is about 22+5+5=32 pixels high. To produce a filled
// shape, sample the SDF at each pixel and fill the pixel if the SDF value
// is greater than or equal to 180/255. (You'll actually want to antialias,
// which is beyond the scope of this example.) Additionally, you can compute
// offset outlines (e.g. to stroke the character border inside & outside,
// or only outside). For example, to fill outside the character up to 3 SDF
// pixels, you would compare against (180-36.0*3)/255 = 72/255. The above
// choice of variables maps a range from 5 pixels outside the shape to
// 2 pixels inside the shape to 0..255; this is intended primarily for apply
// outside effects only (the interior range is needed to allow proper
// antialiasing of the font at *smaller* sizes)
//
// The function computes the SDF analytically at each SDF pixel, not by e.g.
// building a higher-res bitmap and approximating it. In theory the quality
// should be as high as possible for an SDF of this size & representation, but
// unclear if this is true in practice (perhaps building a higher-res bitmap
// and computing from that can allow drop-out prevention).
//
// The algorithm has not been optimized at all, so expect it to be slow
// if computing lots of characters or very large sizes.
//////////////////////////////////////////////////////////////////////////////
//
// Finding the right font...
//
// You should really just solve this offline, keep your own tables
// of what font is what, and don't try to get it out of the .ttf file.
// That's because getting it out of the .ttf file is really hard, because
// the names in the file can appear in many possible encodings, in many
// possible languages, and e.g. if you need a case-insensitive comparison,
// the details of that depend on the encoding & language in a complex way
// (actually underspecified in truetype, but also gigantic).
//
// But you can use the provided functions in two possible ways:
// stbtt_FindMatchingFont() will use *case-sensitive* comparisons on
// unicode-encoded names to try to find the font you want;
// you can run this before calling stbtt_InitFont()
//
// stbtt_GetFontNameString() lets you get any of the various strings
// from the file yourself and do your own comparisons on them.
// You have to have called stbtt_InitFont() first.
STBTT_DEF int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags);
// returns the offset (not index) of the font that matches, or -1 if none
// if you use STBTT_MACSTYLE_DONTCARE, use a font name like "Arial Bold".
// if you use any other flag, use a font name like "Arial"; this checks
// the 'macStyle' header field; i don't know if fonts set this consistently
#define STBTT_MACSTYLE_DONTCARE 0
#define STBTT_MACSTYLE_BOLD 1
#define STBTT_MACSTYLE_ITALIC 2
#define STBTT_MACSTYLE_UNDERSCORE 4
#define STBTT_MACSTYLE_NONE 8 // <= not same as 0, this makes us check the bitfield is 0
STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2);
// returns 1/0 whether the first string interpreted as utf8 is identical to
// the second string interpreted as big-endian utf16... useful for strings from next func
STBTT_DEF const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID);
// returns the string (which may be big-endian double byte, e.g. for unicode)
// and puts the length in bytes in *length.
//
// some of the values for the IDs are below; for more see the truetype spec:
// http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6name.html
// http://www.microsoft.com/typography/otspec/name.htm
enum { // platformID
STBTT_PLATFORM_ID_UNICODE =0,
STBTT_PLATFORM_ID_MAC =1,
STBTT_PLATFORM_ID_ISO =2,
STBTT_PLATFORM_ID_MICROSOFT =3
};
enum { // encodingID for STBTT_PLATFORM_ID_UNICODE
STBTT_UNICODE_EID_UNICODE_1_0 =0,
STBTT_UNICODE_EID_UNICODE_1_1 =1,
STBTT_UNICODE_EID_ISO_10646 =2,
STBTT_UNICODE_EID_UNICODE_2_0_BMP=3,
STBTT_UNICODE_EID_UNICODE_2_0_FULL=4
};
enum { // encodingID for STBTT_PLATFORM_ID_MICROSOFT
STBTT_MS_EID_SYMBOL =0,
STBTT_MS_EID_UNICODE_BMP =1,
STBTT_MS_EID_SHIFTJIS =2,
STBTT_MS_EID_UNICODE_FULL =10
};
enum { // encodingID for STBTT_PLATFORM_ID_MAC; same as Script Manager codes
STBTT_MAC_EID_ROMAN =0, STBTT_MAC_EID_ARABIC =4,
STBTT_MAC_EID_JAPANESE =1, STBTT_MAC_EID_HEBREW =5,
STBTT_MAC_EID_CHINESE_TRAD =2, STBTT_MAC_EID_GREEK =6,
STBTT_MAC_EID_KOREAN =3, STBTT_MAC_EID_RUSSIAN =7
};
enum { // languageID for STBTT_PLATFORM_ID_MICROSOFT; same as LCID...
// problematic because there are e.g. 16 english LCIDs and 16 arabic LCIDs
STBTT_MS_LANG_ENGLISH =0x0409, STBTT_MS_LANG_ITALIAN =0x0410,
STBTT_MS_LANG_CHINESE =0x0804, STBTT_MS_LANG_JAPANESE =0x0411,
STBTT_MS_LANG_DUTCH =0x0413, STBTT_MS_LANG_KOREAN =0x0412,
STBTT_MS_LANG_FRENCH =0x040c, STBTT_MS_LANG_RUSSIAN =0x0419,
STBTT_MS_LANG_GERMAN =0x0407, STBTT_MS_LANG_SPANISH =0x0409,
STBTT_MS_LANG_HEBREW =0x040d, STBTT_MS_LANG_SWEDISH =0x041D
};
enum { // languageID for STBTT_PLATFORM_ID_MAC
STBTT_MAC_LANG_ENGLISH =0 , STBTT_MAC_LANG_JAPANESE =11,
STBTT_MAC_LANG_ARABIC =12, STBTT_MAC_LANG_KOREAN =23,
STBTT_MAC_LANG_DUTCH =4 , STBTT_MAC_LANG_RUSSIAN =32,
STBTT_MAC_LANG_FRENCH =1 , STBTT_MAC_LANG_SPANISH =6 ,
STBTT_MAC_LANG_GERMAN =2 , STBTT_MAC_LANG_SWEDISH =5 ,
STBTT_MAC_LANG_HEBREW =10, STBTT_MAC_LANG_CHINESE_SIMPLIFIED =33,
STBTT_MAC_LANG_ITALIAN =3 , STBTT_MAC_LANG_CHINESE_TRAD =19
};
#ifdef __cplusplus
}
#endif
#endif // __STB_INCLUDE_STB_TRUETYPE_H__
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
////
//// IMPLEMENTATION
////
////
#ifdef STB_TRUETYPE_IMPLEMENTATION
#ifndef STBTT_MAX_OVERSAMPLE
#define STBTT_MAX_OVERSAMPLE 8
#endif
#if STBTT_MAX_OVERSAMPLE > 255
#error "STBTT_MAX_OVERSAMPLE cannot be > 255"
#endif
typedef int stbtt__test_oversample_pow2[(STBTT_MAX_OVERSAMPLE & (STBTT_MAX_OVERSAMPLE-1)) == 0 ? 1 : -1];
#ifndef STBTT_RASTERIZER_VERSION
#define STBTT_RASTERIZER_VERSION 2
#endif
#ifdef _MSC_VER
#define STBTT__NOTUSED(v) (void)(v)
#else
#define STBTT__NOTUSED(v) (void)sizeof(v)
#endif
//////////////////////////////////////////////////////////////////////////
//
// stbtt__buf helpers to parse data from file
//
static stbtt_uint8 stbtt__buf_get8(stbtt__buf *b)
{
if (b->cursor >= b->size)
return 0;
return b->data[b->cursor++];
}
static stbtt_uint8 stbtt__buf_peek8(stbtt__buf *b)
{
if (b->cursor >= b->size)
return 0;
return b->data[b->cursor];
}
static void stbtt__buf_seek(stbtt__buf *b, int o)
{
STBTT_assert(!(o > b->size || o < 0));
b->cursor = (o > b->size || o < 0) ? b->size : o;
}
static void stbtt__buf_skip(stbtt__buf *b, int o)
{
stbtt__buf_seek(b, b->cursor + o);
}
static stbtt_uint32 stbtt__buf_get(stbtt__buf *b, int n)
{
stbtt_uint32 v = 0;
int i;
STBTT_assert(n >= 1 && n <= 4);
for (i = 0; i < n; i++)
v = (v << 8) | stbtt__buf_get8(b);
return v;
}
static stbtt__buf stbtt__new_buf(const void *p, size_t size)
{
stbtt__buf r;
STBTT_assert(size < 0x40000000);
r.data = (stbtt_uint8*) p;
r.size = (int) size;
r.cursor = 0;
return r;
}
#define stbtt__buf_get16(b) stbtt__buf_get((b), 2)
#define stbtt__buf_get32(b) stbtt__buf_get((b), 4)
static stbtt__buf stbtt__buf_range(const stbtt__buf *b, int o, int s)
{
stbtt__buf r = stbtt__new_buf(NULL, 0);
if (o < 0 || s < 0 || o > b->size || s > b->size - o) return r;
r.data = b->data + o;
r.size = s;
return r;
}
static stbtt__buf stbtt__cff_get_index(stbtt__buf *b)
{
int count, start, offsize;
start = b->cursor;
count = stbtt__buf_get16(b);
if (count) {
offsize = stbtt__buf_get8(b);
STBTT_assert(offsize >= 1 && offsize <= 4);
stbtt__buf_skip(b, offsize * count);
stbtt__buf_skip(b, stbtt__buf_get(b, offsize) - 1);
}
return stbtt__buf_range(b, start, b->cursor - start);
}
static stbtt_uint32 stbtt__cff_int(stbtt__buf *b)
{
int b0 = stbtt__buf_get8(b);
if (b0 >= 32 && b0 <= 246) return b0 - 139;
else if (b0 >= 247 && b0 <= 250) return (b0 - 247)*256 + stbtt__buf_get8(b) + 108;
else if (b0 >= 251 && b0 <= 254) return -(b0 - 251)*256 - stbtt__buf_get8(b) - 108;
else if (b0 == 28) return stbtt__buf_get16(b);
else if (b0 == 29) return stbtt__buf_get32(b);
STBTT_assert(0);
return 0;
}
static void stbtt__cff_skip_operand(stbtt__buf *b) {
int v, b0 = stbtt__buf_peek8(b);
STBTT_assert(b0 >= 28);
if (b0 == 30) {
stbtt__buf_skip(b, 1);
while (b->cursor < b->size) {
v = stbtt__buf_get8(b);
if ((v & 0xF) == 0xF || (v >> 4) == 0xF)
break;
}
} else {
stbtt__cff_int(b);
}
}
static stbtt__buf stbtt__dict_get(stbtt__buf *b, int key)
{
stbtt__buf_seek(b, 0);
while (b->cursor < b->size) {
int start = b->cursor, end, op;
while (stbtt__buf_peek8(b) >= 28)
stbtt__cff_skip_operand(b);
end = b->cursor;
op = stbtt__buf_get8(b);
if (op == 12) op = stbtt__buf_get8(b) | 0x100;
if (op == key) return stbtt__buf_range(b, start, end-start);
}
return stbtt__buf_range(b, 0, 0);
}
static void stbtt__dict_get_ints(stbtt__buf *b, int key, int outcount, stbtt_uint32 *out)
{
int i;
stbtt__buf operands = stbtt__dict_get(b, key);
for (i = 0; i < outcount && operands.cursor < operands.size; i++)
out[i] = stbtt__cff_int(&operands);
}
static int stbtt__cff_index_count(stbtt__buf *b)
{
stbtt__buf_seek(b, 0);
return stbtt__buf_get16(b);
}
static stbtt__buf stbtt__cff_index_get(stbtt__buf b, int i)
{
int count, offsize, start, end;
stbtt__buf_seek(&b, 0);
count = stbtt__buf_get16(&b);
offsize = stbtt__buf_get8(&b);
STBTT_assert(i >= 0 && i < count);
STBTT_assert(offsize >= 1 && offsize <= 4);
stbtt__buf_skip(&b, i*offsize);
start = stbtt__buf_get(&b, offsize);
end = stbtt__buf_get(&b, offsize);
return stbtt__buf_range(&b, 2+(count+1)*offsize+start, end - start);
}
//////////////////////////////////////////////////////////////////////////
//
// accessors to parse data from file
//
// on platforms that don't allow misaligned reads, if we want to allow
// truetype fonts that aren't padded to alignment, define ALLOW_UNALIGNED_TRUETYPE
#define ttBYTE(p) (* (stbtt_uint8 *) (p))
#define ttCHAR(p) (* (stbtt_int8 *) (p))
#define ttFixed(p) ttLONG(p)
static stbtt_uint16 ttUSHORT(stbtt_uint8 *p) { return p[0]*256 + p[1]; }
static stbtt_int16 ttSHORT(stbtt_uint8 *p) { return p[0]*256 + p[1]; }
static stbtt_uint32 ttULONG(stbtt_uint8 *p) { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
static stbtt_int32 ttLONG(stbtt_uint8 *p) { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
#define stbtt_tag4(p,c0,c1,c2,c3) ((p)[0] == (c0) && (p)[1] == (c1) && (p)[2] == (c2) && (p)[3] == (c3))
#define stbtt_tag(p,str) stbtt_tag4(p,str[0],str[1],str[2],str[3])
static int stbtt__isfont(stbtt_uint8 *font)
{
// check the version number
if (stbtt_tag4(font, '1',0,0,0)) return 1; // TrueType 1
if (stbtt_tag(font, "typ1")) return 1; // TrueType with type 1 font -- we don't support this!
if (stbtt_tag(font, "OTTO")) return 1; // OpenType with CFF
if (stbtt_tag4(font, 0,1,0,0)) return 1; // OpenType 1.0
if (stbtt_tag(font, "true")) return 1; // Apple specification for TrueType fonts
return 0;
}
// @OPTIMIZE: binary search
static stbtt_uint32 stbtt__find_table(stbtt_uint8 *data, stbtt_uint32 fontstart, const char *tag)
{
stbtt_int32 num_tables = ttUSHORT(data+fontstart+4);
stbtt_uint32 tabledir = fontstart + 12;
stbtt_int32 i;
for (i=0; i < num_tables; ++i) {
stbtt_uint32 loc = tabledir + 16*i;
if (stbtt_tag(data+loc+0, tag))
return ttULONG(data+loc+8);
}
return 0;
}
static int stbtt_GetFontOffsetForIndex_internal(unsigned char *font_collection, int index)
{
// if it's just a font, there's only one valid index
if (stbtt__isfont(font_collection))
return index == 0 ? 0 : -1;
// check if it's a TTC
if (stbtt_tag(font_collection, "ttcf")) {
// version 1?
if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
stbtt_int32 n = ttLONG(font_collection+8);
if (index >= n)
return -1;
return ttULONG(font_collection+12+index*4);
}
}
return -1;
}
static int stbtt_GetNumberOfFonts_internal(unsigned char *font_collection)
{
// if it's just a font, there's only one valid font
if (stbtt__isfont(font_collection))
return 1;
// check if it's a TTC
if (stbtt_tag(font_collection, "ttcf")) {
// version 1?
if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
return ttLONG(font_collection+8);
}
}
return 0;
}
static stbtt__buf stbtt__get_subrs(stbtt__buf cff, stbtt__buf fontdict)
{
stbtt_uint32 subrsoff = 0, private_loc[2] = { 0, 0 };
stbtt__buf pdict;
stbtt__dict_get_ints(&fontdict, 18, 2, private_loc);
if (!private_loc[1] || !private_loc[0]) return stbtt__new_buf(NULL, 0);
pdict = stbtt__buf_range(&cff, private_loc[1], private_loc[0]);
stbtt__dict_get_ints(&pdict, 19, 1, &subrsoff);
if (!subrsoff) return stbtt__new_buf(NULL, 0);
stbtt__buf_seek(&cff, private_loc[1]+subrsoff);
return stbtt__cff_get_index(&cff);
}
// since most people won't use this, find this table the first time it's needed
static int stbtt__get_svg(stbtt_fontinfo *info)
{
stbtt_uint32 t;
if (info->svg < 0) {
t = stbtt__find_table(info->data, info->fontstart, "SVG ");
if (t) {
stbtt_uint32 offset = ttULONG(info->data + t + 2);
info->svg = t + offset;
} else {
info->svg = 0;
}
}
return info->svg;
}
static int stbtt_InitFont_internal(stbtt_fontinfo *info, unsigned char *data, int fontstart)
{
stbtt_uint32 cmap, t;
stbtt_int32 i,numTables;
info->data = data;
info->fontstart = fontstart;
info->cff = stbtt__new_buf(NULL, 0);
cmap = stbtt__find_table(data, fontstart, "cmap"); // required
info->loca = stbtt__find_table(data, fontstart, "loca"); // required
info->head = stbtt__find_table(data, fontstart, "head"); // required
info->glyf = stbtt__find_table(data, fontstart, "glyf"); // required
info->hhea = stbtt__find_table(data, fontstart, "hhea"); // required
info->hmtx = stbtt__find_table(data, fontstart, "hmtx"); // required
info->kern = stbtt__find_table(data, fontstart, "kern"); // not required
info->gpos = stbtt__find_table(data, fontstart, "GPOS"); // not required
if (!cmap || !info->head || !info->hhea || !info->hmtx)
return 0;
if (info->glyf) {
// required for truetype
if (!info->loca) return 0;
} else {
// initialization for CFF / Type2 fonts (OTF)
stbtt__buf b, topdict, topdictidx;
stbtt_uint32 cstype = 2, charstrings = 0, fdarrayoff = 0, fdselectoff = 0;
stbtt_uint32 cff;
cff = stbtt__find_table(data, fontstart, "CFF ");
if (!cff) return 0;
info->fontdicts = stbtt__new_buf(NULL, 0);
info->fdselect = stbtt__new_buf(NULL, 0);
// @TODO this should use size from table (not 512MB)
info->cff = stbtt__new_buf(data+cff, 512*1024*1024);
b = info->cff;
// read the header
stbtt__buf_skip(&b, 2);
stbtt__buf_seek(&b, stbtt__buf_get8(&b)); // hdrsize
// @TODO the name INDEX could list multiple fonts,
// but we just use the first one.
stbtt__cff_get_index(&b); // name INDEX
topdictidx = stbtt__cff_get_index(&b);
topdict = stbtt__cff_index_get(topdictidx, 0);
stbtt__cff_get_index(&b); // string INDEX
info->gsubrs = stbtt__cff_get_index(&b);
stbtt__dict_get_ints(&topdict, 17, 1, &charstrings);
stbtt__dict_get_ints(&topdict, 0x100 | 6, 1, &cstype);
stbtt__dict_get_ints(&topdict, 0x100 | 36, 1, &fdarrayoff);
stbtt__dict_get_ints(&topdict, 0x100 | 37, 1, &fdselectoff);
info->subrs = stbtt__get_subrs(b, topdict);
// we only support Type 2 charstrings
if (cstype != 2) return 0;
if (charstrings == 0) return 0;
if (fdarrayoff) {
// looks like a CID font
if (!fdselectoff) return 0;
stbtt__buf_seek(&b, fdarrayoff);
info->fontdicts = stbtt__cff_get_index(&b);
info->fdselect = stbtt__buf_range(&b, fdselectoff, b.size-fdselectoff);
}
stbtt__buf_seek(&b, charstrings);
info->charstrings = stbtt__cff_get_index(&b);
}
t = stbtt__find_table(data, fontstart, "maxp");
if (t)
info->numGlyphs = ttUSHORT(data+t+4);
else
info->numGlyphs = 0xffff;
info->svg = -1;
// find a cmap encoding table we understand *now* to avoid searching
// later. (todo: could make this installable)
// the same regardless of glyph.
numTables = ttUSHORT(data + cmap + 2);
info->index_map = 0;
for (i=0; i < numTables; ++i) {
stbtt_uint32 encoding_record = cmap + 4 + 8 * i;
// find an encoding we understand:
switch(ttUSHORT(data+encoding_record)) {
case STBTT_PLATFORM_ID_MICROSOFT:
switch (ttUSHORT(data+encoding_record+2)) {
case STBTT_MS_EID_UNICODE_BMP:
case STBTT_MS_EID_UNICODE_FULL:
// MS/Unicode
info->index_map = cmap + ttULONG(data+encoding_record+4);
break;
}
break;
case STBTT_PLATFORM_ID_UNICODE:
// Mac/iOS has these
// all the encodingIDs are unicode, so we don't bother to check it
info->index_map = cmap + ttULONG(data+encoding_record+4);
break;
}
}
if (info->index_map == 0)
return 0;
info->indexToLocFormat = ttUSHORT(data+info->head + 50);
return 1;
}
STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint)
{
stbtt_uint8 *data = info->data;
stbtt_uint32 index_map = info->index_map;
stbtt_uint16 format = ttUSHORT(data + index_map + 0);
if (format == 0) { // apple byte encoding
stbtt_int32 bytes = ttUSHORT(data + index_map + 2);
if (unicode_codepoint < bytes-6)
return ttBYTE(data + index_map + 6 + unicode_codepoint);
return 0;
} else if (format == 6) {
stbtt_uint32 first = ttUSHORT(data + index_map + 6);
stbtt_uint32 count = ttUSHORT(data + index_map + 8);
if ((stbtt_uint32) unicode_codepoint >= first && (stbtt_uint32) unicode_codepoint < first+count)
return ttUSHORT(data + index_map + 10 + (unicode_codepoint - first)*2);
return 0;
} else if (format == 2) {
STBTT_assert(0); // @TODO: high-byte mapping for japanese/chinese/korean
return 0;
} else if (format == 4) { // standard mapping for windows fonts: binary search collection of ranges
stbtt_uint16 segcount = ttUSHORT(data+index_map+6) >> 1;
stbtt_uint16 searchRange = ttUSHORT(data+index_map+8) >> 1;
stbtt_uint16 entrySelector = ttUSHORT(data+index_map+10);
stbtt_uint16 rangeShift = ttUSHORT(data+index_map+12) >> 1;
// do a binary search of the segments
stbtt_uint32 endCount = index_map + 14;
stbtt_uint32 search = endCount;
if (unicode_codepoint > 0xffff)
return 0;
// they lie from endCount .. endCount + segCount
// but searchRange is the nearest power of two, so...
if (unicode_codepoint >= ttUSHORT(data + search + rangeShift*2))
search += rangeShift*2;
// now decrement to bias correctly to find smallest
search -= 2;
while (entrySelector) {
stbtt_uint16 end;
searchRange >>= 1;
end = ttUSHORT(data + search + searchRange*2);
if (unicode_codepoint > end)
search += searchRange*2;
--entrySelector;
}
search += 2;
{
stbtt_uint16 offset, start, last;
stbtt_uint16 item = (stbtt_uint16) ((search - endCount) >> 1);
start = ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
last = ttUSHORT(data + endCount + 2*item);
if (unicode_codepoint < start || unicode_codepoint > last)
return 0;
offset = ttUSHORT(data + index_map + 14 + segcount*6 + 2 + 2*item);
if (offset == 0)
return (stbtt_uint16) (unicode_codepoint + ttSHORT(data + index_map + 14 + segcount*4 + 2 + 2*item));
return ttUSHORT(data + offset + (unicode_codepoint-start)*2 + index_map + 14 + segcount*6 + 2 + 2*item);
}
} else if (format == 12 || format == 13) {
stbtt_uint32 ngroups = ttULONG(data+index_map+12);
stbtt_int32 low,high;
low = 0; high = (stbtt_int32)ngroups;
// Binary search the right group.
while (low < high) {
stbtt_int32 mid = low + ((high-low) >> 1); // rounds down, so low <= mid < high
stbtt_uint32 start_char = ttULONG(data+index_map+16+mid*12);
stbtt_uint32 end_char = ttULONG(data+index_map+16+mid*12+4);
if ((stbtt_uint32) unicode_codepoint < start_char)
high = mid;
else if ((stbtt_uint32) unicode_codepoint > end_char)
low = mid+1;
else {
stbtt_uint32 start_glyph = ttULONG(data+index_map+16+mid*12+8);
if (format == 12)
return start_glyph + unicode_codepoint-start_char;
else // format == 13
return start_glyph;
}
}
return 0; // not found
}
// @TODO
STBTT_assert(0);
return 0;
}
STBTT_DEF int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices)
{
return stbtt_GetGlyphShape(info, stbtt_FindGlyphIndex(info, unicode_codepoint), vertices);
}
static void stbtt_setvertex(stbtt_vertex *v, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy)
{
v->type = type;
v->x = (stbtt_int16) x;
v->y = (stbtt_int16) y;
v->cx = (stbtt_int16) cx;
v->cy = (stbtt_int16) cy;
}
static int stbtt__GetGlyfOffset(const stbtt_fontinfo *info, int glyph_index)
{
int g1,g2;
STBTT_assert(!info->cff.size);
if (glyph_index >= info->numGlyphs) return -1; // glyph index out of range
if (info->indexToLocFormat >= 2) return -1; // unknown index->glyph map format
if (info->indexToLocFormat == 0) {
g1 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2) * 2;
g2 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2 + 2) * 2;
} else {
g1 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4);
g2 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4 + 4);
}
return g1==g2 ? -1 : g1; // if length is 0, return -1
}
static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
STBTT_DEF int stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
{
if (info->cff.size) {
stbtt__GetGlyphInfoT2(info, glyph_index, x0, y0, x1, y1);
} else {
int g = stbtt__GetGlyfOffset(info, glyph_index);
if (g < 0) return 0;
if (x0) *x0 = ttSHORT(info->data + g + 2);
if (y0) *y0 = ttSHORT(info->data + g + 4);
if (x1) *x1 = ttSHORT(info->data + g + 6);
if (y1) *y1 = ttSHORT(info->data + g + 8);
}
return 1;
}
STBTT_DEF int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1)
{
return stbtt_GetGlyphBox(info, stbtt_FindGlyphIndex(info,codepoint), x0,y0,x1,y1);
}
STBTT_DEF int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index)
{
stbtt_int16 numberOfContours;
int g;
if (info->cff.size)
return stbtt__GetGlyphInfoT2(info, glyph_index, NULL, NULL, NULL, NULL) == 0;
g = stbtt__GetGlyfOffset(info, glyph_index);
if (g < 0) return 1;
numberOfContours = ttSHORT(info->data + g);
return numberOfContours == 0;
}
static int stbtt__close_shape(stbtt_vertex *vertices, int num_vertices, int was_off, int start_off,
stbtt_int32 sx, stbtt_int32 sy, stbtt_int32 scx, stbtt_int32 scy, stbtt_int32 cx, stbtt_int32 cy)
{
if (start_off) {
if (was_off)
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+scx)>>1, (cy+scy)>>1, cx,cy);
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, sx,sy,scx,scy);
} else {
if (was_off)
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve,sx,sy,cx,cy);
else
stbtt_setvertex(&vertices[num_vertices++], STBTT_vline,sx,sy,0,0);
}
return num_vertices;
}
static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
{
stbtt_int16 numberOfContours;
stbtt_uint8 *endPtsOfContours;
stbtt_uint8 *data = info->data;
stbtt_vertex *vertices=0;
int num_vertices=0;
int g = stbtt__GetGlyfOffset(info, glyph_index);
*pvertices = NULL;
if (g < 0) return 0;
numberOfContours = ttSHORT(data + g);
if (numberOfContours > 0) {
stbtt_uint8 flags=0,flagcount;
stbtt_int32 ins, i,j=0,m,n, next_move, was_off=0, off, start_off=0;
stbtt_int32 x,y,cx,cy,sx,sy, scx,scy;
stbtt_uint8 *points;
endPtsOfContours = (data + g + 10);
ins = ttUSHORT(data + g + 10 + numberOfContours * 2);
points = data + g + 10 + numberOfContours * 2 + 2 + ins;
n = 1+ttUSHORT(endPtsOfContours + numberOfContours*2-2);
m = n + 2*numberOfContours; // a loose bound on how many vertices we might need
vertices = (stbtt_vertex *) STBTT_malloc(m * sizeof(vertices[0]), info->userdata);
if (vertices == 0)
return 0;
next_move = 0;
flagcount=0;
// in first pass, we load uninterpreted data into the allocated array
// above, shifted to the end of the array so we won't overwrite it when
// we create our final data starting from the front
off = m - n; // starting offset for uninterpreted data, regardless of how m ends up being calculated
// first load flags
for (i=0; i < n; ++i) {
if (flagcount == 0) {
flags = *points++;
if (flags & 8)
flagcount = *points++;
} else
--flagcount;
vertices[off+i].type = flags;
}
// now load x coordinates
x=0;
for (i=0; i < n; ++i) {
flags = vertices[off+i].type;
if (flags & 2) {
stbtt_int16 dx = *points++;
x += (flags & 16) ? dx : -dx; // ???
} else {
if (!(flags & 16)) {
x = x + (stbtt_int16) (points[0]*256 + points[1]);
points += 2;
}
}
vertices[off+i].x = (stbtt_int16) x;
}
// now load y coordinates
y=0;
for (i=0; i < n; ++i) {
flags = vertices[off+i].type;
if (flags & 4) {
stbtt_int16 dy = *points++;
y += (flags & 32) ? dy : -dy; // ???
} else {
if (!(flags & 32)) {
y = y + (stbtt_int16) (points[0]*256 + points[1]);
points += 2;
}
}
vertices[off+i].y = (stbtt_int16) y;
}
// now convert them to our format
num_vertices=0;
sx = sy = cx = cy = scx = scy = 0;
for (i=0; i < n; ++i) {
flags = vertices[off+i].type;
x = (stbtt_int16) vertices[off+i].x;
y = (stbtt_int16) vertices[off+i].y;
if (next_move == i) {
if (i != 0)
num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
// now start the new one
start_off = !(flags & 1);
if (start_off) {
// if we start off with an off-curve point, then when we need to find a point on the curve
// where we can start, and we need to save some state for when we wraparound.
scx = x;
scy = y;
if (!(vertices[off+i+1].type & 1)) {
// next point is also a curve point, so interpolate an on-point curve
sx = (x + (stbtt_int32) vertices[off+i+1].x) >> 1;
sy = (y + (stbtt_int32) vertices[off+i+1].y) >> 1;
} else {
// otherwise just use the next point as our start point
sx = (stbtt_int32) vertices[off+i+1].x;
sy = (stbtt_int32) vertices[off+i+1].y;
++i; // we're using point i+1 as the starting point, so skip it
}
} else {
sx = x;
sy = y;
}
stbtt_setvertex(&vertices[num_vertices++], STBTT_vmove,sx,sy,0,0);
was_off = 0;
next_move = 1 + ttUSHORT(endPtsOfContours+j*2);
++j;
} else {
if (!(flags & 1)) { // if it's a curve
if (was_off) // two off-curve control points in a row means interpolate an on-curve midpoint
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+x)>>1, (cy+y)>>1, cx, cy);
cx = x;
cy = y;
was_off = 1;
} else {
if (was_off)
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, x,y, cx, cy);
else
stbtt_setvertex(&vertices[num_vertices++], STBTT_vline, x,y,0,0);
was_off = 0;
}
}
}
num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
} else if (numberOfContours < 0) {
// Compound shapes.
int more = 1;
stbtt_uint8 *comp = data + g + 10;
num_vertices = 0;
vertices = 0;
while (more) {
stbtt_uint16 flags, gidx;
int comp_num_verts = 0, i;
stbtt_vertex *comp_verts = 0, *tmp = 0;
float mtx[6] = {1,0,0,1,0,0}, m, n;
flags = ttSHORT(comp); comp+=2;
gidx = ttSHORT(comp); comp+=2;
if (flags & 2) { // XY values
if (flags & 1) { // shorts
mtx[4] = ttSHORT(comp); comp+=2;
mtx[5] = ttSHORT(comp); comp+=2;
} else {
mtx[4] = ttCHAR(comp); comp+=1;
mtx[5] = ttCHAR(comp); comp+=1;
}
}
else {
// @TODO handle matching point
STBTT_assert(0);
}
if (flags & (1<<3)) { // WE_HAVE_A_SCALE
mtx[0] = mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[1] = mtx[2] = 0;
} else if (flags & (1<<6)) { // WE_HAVE_AN_X_AND_YSCALE
mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[1] = mtx[2] = 0;
mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
} else if (flags & (1<<7)) { // WE_HAVE_A_TWO_BY_TWO
mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[1] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[2] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
}
// Find transformation scales.
m = (float) STBTT_sqrt(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
n = (float) STBTT_sqrt(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
// Get indexed glyph.
comp_num_verts = stbtt_GetGlyphShape(info, gidx, &comp_verts);
if (comp_num_verts > 0) {
// Transform vertices.
for (i = 0; i < comp_num_verts; ++i) {
stbtt_vertex* v = &comp_verts[i];
stbtt_vertex_type x,y;
x=v->x; y=v->y;
v->x = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
v->y = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
x=v->cx; y=v->cy;
v->cx = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
v->cy = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
}
// Append vertices.
tmp = (stbtt_vertex*)STBTT_malloc((num_vertices+comp_num_verts)*sizeof(stbtt_vertex), info->userdata);
if (!tmp) {
if (vertices) STBTT_free(vertices, info->userdata);
if (comp_verts) STBTT_free(comp_verts, info->userdata);
return 0;
}
if (num_vertices > 0 && vertices) STBTT_memcpy(tmp, vertices, num_vertices*sizeof(stbtt_vertex));
STBTT_memcpy(tmp+num_vertices, comp_verts, comp_num_verts*sizeof(stbtt_vertex));
if (vertices) STBTT_free(vertices, info->userdata);
vertices = tmp;
STBTT_free(comp_verts, info->userdata);
num_vertices += comp_num_verts;
}
// More components ?
more = flags & (1<<5);
}
} else {
// numberOfCounters == 0, do nothing
}
*pvertices = vertices;
return num_vertices;
}
typedef struct
{
int bounds;
int started;
float first_x, first_y;
float x, y;
stbtt_int32 min_x, max_x, min_y, max_y;
stbtt_vertex *pvertices;
int num_vertices;
} stbtt__csctx;
#define STBTT__CSCTX_INIT(bounds) {bounds,0, 0,0, 0,0, 0,0,0,0, NULL, 0}
static void stbtt__track_vertex(stbtt__csctx *c, stbtt_int32 x, stbtt_int32 y)
{
if (x > c->max_x || !c->started) c->max_x = x;
if (y > c->max_y || !c->started) c->max_y = y;
if (x < c->min_x || !c->started) c->min_x = x;
if (y < c->min_y || !c->started) c->min_y = y;
c->started = 1;
}
static void stbtt__csctx_v(stbtt__csctx *c, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy, stbtt_int32 cx1, stbtt_int32 cy1)
{
if (c->bounds) {
stbtt__track_vertex(c, x, y);
if (type == STBTT_vcubic) {
stbtt__track_vertex(c, cx, cy);
stbtt__track_vertex(c, cx1, cy1);
}
} else {
stbtt_setvertex(&c->pvertices[c->num_vertices], type, x, y, cx, cy);
c->pvertices[c->num_vertices].cx1 = (stbtt_int16) cx1;
c->pvertices[c->num_vertices].cy1 = (stbtt_int16) cy1;
}
c->num_vertices++;
}
static void stbtt__csctx_close_shape(stbtt__csctx *ctx)
{
if (ctx->first_x != ctx->x || ctx->first_y != ctx->y)
stbtt__csctx_v(ctx, STBTT_vline, (int)ctx->first_x, (int)ctx->first_y, 0, 0, 0, 0);
}
static void stbtt__csctx_rmove_to(stbtt__csctx *ctx, float dx, float dy)
{
stbtt__csctx_close_shape(ctx);
ctx->first_x = ctx->x = ctx->x + dx;
ctx->first_y = ctx->y = ctx->y + dy;
stbtt__csctx_v(ctx, STBTT_vmove, (int)ctx->x, (int)ctx->y, 0, 0, 0, 0);
}
static void stbtt__csctx_rline_to(stbtt__csctx *ctx, float dx, float dy)
{
ctx->x += dx;
ctx->y += dy;
stbtt__csctx_v(ctx, STBTT_vline, (int)ctx->x, (int)ctx->y, 0, 0, 0, 0);
}
static void stbtt__csctx_rccurve_to(stbtt__csctx *ctx, float dx1, float dy1, float dx2, float dy2, float dx3, float dy3)
{
float cx1 = ctx->x + dx1;
float cy1 = ctx->y + dy1;
float cx2 = cx1 + dx2;
float cy2 = cy1 + dy2;
ctx->x = cx2 + dx3;
ctx->y = cy2 + dy3;
stbtt__csctx_v(ctx, STBTT_vcubic, (int)ctx->x, (int)ctx->y, (int)cx1, (int)cy1, (int)cx2, (int)cy2);
}
static stbtt__buf stbtt__get_subr(stbtt__buf idx, int n)
{
int count = stbtt__cff_index_count(&idx);
int bias = 107;
if (count >= 33900)
bias = 32768;
else if (count >= 1240)
bias = 1131;
n += bias;
if (n < 0 || n >= count)
return stbtt__new_buf(NULL, 0);
return stbtt__cff_index_get(idx, n);
}
static stbtt__buf stbtt__cid_get_glyph_subrs(const stbtt_fontinfo *info, int glyph_index)
{
stbtt__buf fdselect = info->fdselect;
int nranges, start, end, v, fmt, fdselector = -1, i;
stbtt__buf_seek(&fdselect, 0);
fmt = stbtt__buf_get8(&fdselect);
if (fmt == 0) {
// untested
stbtt__buf_skip(&fdselect, glyph_index);
fdselector = stbtt__buf_get8(&fdselect);
} else if (fmt == 3) {
nranges = stbtt__buf_get16(&fdselect);
start = stbtt__buf_get16(&fdselect);
for (i = 0; i < nranges; i++) {
v = stbtt__buf_get8(&fdselect);
end = stbtt__buf_get16(&fdselect);
if (glyph_index >= start && glyph_index < end) {
fdselector = v;
break;
}
start = end;
}
}
if (fdselector == -1) return stbtt__new_buf(NULL, 0); // [DEAR IMGUI] fixed, see #6007 and nothings/stb#1422
return stbtt__get_subrs(info->cff, stbtt__cff_index_get(info->fontdicts, fdselector));
}
static int stbtt__run_charstring(const stbtt_fontinfo *info, int glyph_index, stbtt__csctx *c)
{
int in_header = 1, maskbits = 0, subr_stack_height = 0, sp = 0, v, i, b0;
int has_subrs = 0, clear_stack;
float s[48];
stbtt__buf subr_stack[10], subrs = info->subrs, b;
float f;
#define STBTT__CSERR(s) (0)
// this currently ignores the initial width value, which isn't needed if we have hmtx
b = stbtt__cff_index_get(info->charstrings, glyph_index);
while (b.cursor < b.size) {
i = 0;
clear_stack = 1;
b0 = stbtt__buf_get8(&b);
switch (b0) {
// @TODO implement hinting
case 0x13: // hintmask
case 0x14: // cntrmask
if (in_header)
maskbits += (sp / 2); // implicit "vstem"
in_header = 0;
stbtt__buf_skip(&b, (maskbits + 7) / 8);
break;
case 0x01: // hstem
case 0x03: // vstem
case 0x12: // hstemhm
case 0x17: // vstemhm
maskbits += (sp / 2);
break;
case 0x15: // rmoveto
in_header = 0;
if (sp < 2) return STBTT__CSERR("rmoveto stack");
stbtt__csctx_rmove_to(c, s[sp-2], s[sp-1]);
break;
case 0x04: // vmoveto
in_header = 0;
if (sp < 1) return STBTT__CSERR("vmoveto stack");
stbtt__csctx_rmove_to(c, 0, s[sp-1]);
break;
case 0x16: // hmoveto
in_header = 0;
if (sp < 1) return STBTT__CSERR("hmoveto stack");
stbtt__csctx_rmove_to(c, s[sp-1], 0);
break;
case 0x05: // rlineto
if (sp < 2) return STBTT__CSERR("rlineto stack");
for (; i + 1 < sp; i += 2)
stbtt__csctx_rline_to(c, s[i], s[i+1]);
break;
// hlineto/vlineto and vhcurveto/hvcurveto alternate horizontal and vertical
// starting from a different place.
case 0x07: // vlineto
if (sp < 1) return STBTT__CSERR("vlineto stack");
goto vlineto;
case 0x06: // hlineto
if (sp < 1) return STBTT__CSERR("hlineto stack");
for (;;) {
if (i >= sp) break;
stbtt__csctx_rline_to(c, s[i], 0);
i++;
vlineto:
if (i >= sp) break;
stbtt__csctx_rline_to(c, 0, s[i]);
i++;
}
break;
case 0x1F: // hvcurveto
if (sp < 4) return STBTT__CSERR("hvcurveto stack");
goto hvcurveto;
case 0x1E: // vhcurveto
if (sp < 4) return STBTT__CSERR("vhcurveto stack");
for (;;) {
if (i + 3 >= sp) break;
stbtt__csctx_rccurve_to(c, 0, s[i], s[i+1], s[i+2], s[i+3], (sp - i == 5) ? s[i + 4] : 0.0f);
i += 4;
hvcurveto:
if (i + 3 >= sp) break;
stbtt__csctx_rccurve_to(c, s[i], 0, s[i+1], s[i+2], (sp - i == 5) ? s[i+4] : 0.0f, s[i+3]);
i += 4;
}
break;
case 0x08: // rrcurveto
if (sp < 6) return STBTT__CSERR("rcurveline stack");
for (; i + 5 < sp; i += 6)
stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
break;
case 0x18: // rcurveline
if (sp < 8) return STBTT__CSERR("rcurveline stack");
for (; i + 5 < sp - 2; i += 6)
stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
if (i + 1 >= sp) return STBTT__CSERR("rcurveline stack");
stbtt__csctx_rline_to(c, s[i], s[i+1]);
break;
case 0x19: // rlinecurve
if (sp < 8) return STBTT__CSERR("rlinecurve stack");
for (; i + 1 < sp - 6; i += 2)
stbtt__csctx_rline_to(c, s[i], s[i+1]);
if (i + 5 >= sp) return STBTT__CSERR("rlinecurve stack");
stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
break;
case 0x1A: // vvcurveto
case 0x1B: // hhcurveto
if (sp < 4) return STBTT__CSERR("(vv|hh)curveto stack");
f = 0.0;
if (sp & 1) { f = s[i]; i++; }
for (; i + 3 < sp; i += 4) {
if (b0 == 0x1B)
stbtt__csctx_rccurve_to(c, s[i], f, s[i+1], s[i+2], s[i+3], 0.0);
else
stbtt__csctx_rccurve_to(c, f, s[i], s[i+1], s[i+2], 0.0, s[i+3]);
f = 0.0;
}
break;
case 0x0A: // callsubr
if (!has_subrs) {
if (info->fdselect.size)
subrs = stbtt__cid_get_glyph_subrs(info, glyph_index);
has_subrs = 1;
}
// FALLTHROUGH
case 0x1D: // callgsubr
if (sp < 1) return STBTT__CSERR("call(g|)subr stack");
v = (int) s[--sp];
if (subr_stack_height >= 10) return STBTT__CSERR("recursion limit");
subr_stack[subr_stack_height++] = b;
b = stbtt__get_subr(b0 == 0x0A ? subrs : info->gsubrs, v);
if (b.size == 0) return STBTT__CSERR("subr not found");
b.cursor = 0;
clear_stack = 0;
break;
case 0x0B: // return
if (subr_stack_height <= 0) return STBTT__CSERR("return outside subr");
b = subr_stack[--subr_stack_height];
clear_stack = 0;
break;
case 0x0E: // endchar
stbtt__csctx_close_shape(c);
return 1;
case 0x0C: { // two-byte escape
float dx1, dx2, dx3, dx4, dx5, dx6, dy1, dy2, dy3, dy4, dy5, dy6;
float dx, dy;
int b1 = stbtt__buf_get8(&b);
switch (b1) {
// @TODO These "flex" implementations ignore the flex-depth and resolution,
// and always draw beziers.
case 0x22: // hflex
if (sp < 7) return STBTT__CSERR("hflex stack");
dx1 = s[0];
dx2 = s[1];
dy2 = s[2];
dx3 = s[3];
dx4 = s[4];
dx5 = s[5];
dx6 = s[6];
stbtt__csctx_rccurve_to(c, dx1, 0, dx2, dy2, dx3, 0);
stbtt__csctx_rccurve_to(c, dx4, 0, dx5, -dy2, dx6, 0);
break;
case 0x23: // flex
if (sp < 13) return STBTT__CSERR("flex stack");
dx1 = s[0];
dy1 = s[1];
dx2 = s[2];
dy2 = s[3];
dx3 = s[4];
dy3 = s[5];
dx4 = s[6];
dy4 = s[7];
dx5 = s[8];
dy5 = s[9];
dx6 = s[10];
dy6 = s[11];
//fd is s[12]
stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, dy3);
stbtt__csctx_rccurve_to(c, dx4, dy4, dx5, dy5, dx6, dy6);
break;
case 0x24: // hflex1
if (sp < 9) return STBTT__CSERR("hflex1 stack");
dx1 = s[0];
dy1 = s[1];
dx2 = s[2];
dy2 = s[3];
dx3 = s[4];
dx4 = s[5];
dx5 = s[6];
dy5 = s[7];
dx6 = s[8];
stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, 0);
stbtt__csctx_rccurve_to(c, dx4, 0, dx5, dy5, dx6, -(dy1+dy2+dy5));
break;
case 0x25: // flex1
if (sp < 11) return STBTT__CSERR("flex1 stack");
dx1 = s[0];
dy1 = s[1];
dx2 = s[2];
dy2 = s[3];
dx3 = s[4];
dy3 = s[5];
dx4 = s[6];
dy4 = s[7];
dx5 = s[8];
dy5 = s[9];
dx6 = dy6 = s[10];
dx = dx1+dx2+dx3+dx4+dx5;
dy = dy1+dy2+dy3+dy4+dy5;
if (STBTT_fabs(dx) > STBTT_fabs(dy))
dy6 = -dy;
else
dx6 = -dx;
stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, dy3);
stbtt__csctx_rccurve_to(c, dx4, dy4, dx5, dy5, dx6, dy6);
break;
default:
return STBTT__CSERR("unimplemented");
}
} break;
default:
if (b0 != 255 && b0 != 28 && b0 < 32)
return STBTT__CSERR("reserved operator");
// push immediate
if (b0 == 255) {
f = (float)(stbtt_int32)stbtt__buf_get32(&b) / 0x10000;
} else {
stbtt__buf_skip(&b, -1);
f = (float)(stbtt_int16)stbtt__cff_int(&b);
}
if (sp >= 48) return STBTT__CSERR("push stack overflow");
s[sp++] = f;
clear_stack = 0;
break;
}
if (clear_stack) sp = 0;
}
return STBTT__CSERR("no endchar");
#undef STBTT__CSERR
}
static int stbtt__GetGlyphShapeT2(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
{
// runs the charstring twice, once to count and once to output (to avoid realloc)
stbtt__csctx count_ctx = STBTT__CSCTX_INIT(1);
stbtt__csctx output_ctx = STBTT__CSCTX_INIT(0);
if (stbtt__run_charstring(info, glyph_index, &count_ctx)) {
*pvertices = (stbtt_vertex*)STBTT_malloc(count_ctx.num_vertices*sizeof(stbtt_vertex), info->userdata);
output_ctx.pvertices = *pvertices;
if (stbtt__run_charstring(info, glyph_index, &output_ctx)) {
STBTT_assert(output_ctx.num_vertices == count_ctx.num_vertices);
return output_ctx.num_vertices;
}
}
*pvertices = NULL;
return 0;
}
static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
{
stbtt__csctx c = STBTT__CSCTX_INIT(1);
int r = stbtt__run_charstring(info, glyph_index, &c);
if (x0) *x0 = r ? c.min_x : 0;
if (y0) *y0 = r ? c.min_y : 0;
if (x1) *x1 = r ? c.max_x : 0;
if (y1) *y1 = r ? c.max_y : 0;
return r ? c.num_vertices : 0;
}
STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
{
if (!info->cff.size)
return stbtt__GetGlyphShapeTT(info, glyph_index, pvertices);
else
return stbtt__GetGlyphShapeT2(info, glyph_index, pvertices);
}
STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing)
{
stbtt_uint16 numOfLongHorMetrics = ttUSHORT(info->data+info->hhea + 34);
if (glyph_index < numOfLongHorMetrics) {
if (advanceWidth) *advanceWidth = ttSHORT(info->data + info->hmtx + 4*glyph_index);
if (leftSideBearing) *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*glyph_index + 2);
} else {
if (advanceWidth) *advanceWidth = ttSHORT(info->data + info->hmtx + 4*(numOfLongHorMetrics-1));
if (leftSideBearing) *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*numOfLongHorMetrics + 2*(glyph_index - numOfLongHorMetrics));
}
}
STBTT_DEF int stbtt_GetKerningTableLength(const stbtt_fontinfo *info)
{
stbtt_uint8 *data = info->data + info->kern;
// we only look at the first table. it must be 'horizontal' and format 0.
if (!info->kern)
return 0;
if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
return 0;
if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
return 0;
return ttUSHORT(data+10);
}
STBTT_DEF int stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length)
{
stbtt_uint8 *data = info->data + info->kern;
int k, length;
// we only look at the first table. it must be 'horizontal' and format 0.
if (!info->kern)
return 0;
if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
return 0;
if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
return 0;
length = ttUSHORT(data+10);
if (table_length < length)
length = table_length;
for (k = 0; k < length; k++)
{
table[k].glyph1 = ttUSHORT(data+18+(k*6));
table[k].glyph2 = ttUSHORT(data+20+(k*6));
table[k].advance = ttSHORT(data+22+(k*6));
}
return length;
}
static int stbtt__GetGlyphKernInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
{
stbtt_uint8 *data = info->data + info->kern;
stbtt_uint32 needle, straw;
int l, r, m;
// we only look at the first table. it must be 'horizontal' and format 0.
if (!info->kern)
return 0;
if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
return 0;
if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
return 0;
l = 0;
r = ttUSHORT(data+10) - 1;
needle = glyph1 << 16 | glyph2;
while (l <= r) {
m = (l + r) >> 1;
straw = ttULONG(data+18+(m*6)); // note: unaligned read
if (needle < straw)
r = m - 1;
else if (needle > straw)
l = m + 1;
else
return ttSHORT(data+22+(m*6));
}
return 0;
}
static stbtt_int32 stbtt__GetCoverageIndex(stbtt_uint8 *coverageTable, int glyph)
{
stbtt_uint16 coverageFormat = ttUSHORT(coverageTable);
switch (coverageFormat) {
case 1: {
stbtt_uint16 glyphCount = ttUSHORT(coverageTable + 2);
// Binary search.
stbtt_int32 l=0, r=glyphCount-1, m;
int straw, needle=glyph;
while (l <= r) {
stbtt_uint8 *glyphArray = coverageTable + 4;
stbtt_uint16 glyphID;
m = (l + r) >> 1;
glyphID = ttUSHORT(glyphArray + 2 * m);
straw = glyphID;
if (needle < straw)
r = m - 1;
else if (needle > straw)
l = m + 1;
else {
return m;
}
}
break;
}
case 2: {
stbtt_uint16 rangeCount = ttUSHORT(coverageTable + 2);
stbtt_uint8 *rangeArray = coverageTable + 4;
// Binary search.
stbtt_int32 l=0, r=rangeCount-1, m;
int strawStart, strawEnd, needle=glyph;
while (l <= r) {
stbtt_uint8 *rangeRecord;
m = (l + r) >> 1;
rangeRecord = rangeArray + 6 * m;
strawStart = ttUSHORT(rangeRecord);
strawEnd = ttUSHORT(rangeRecord + 2);
if (needle < strawStart)
r = m - 1;
else if (needle > strawEnd)
l = m + 1;
else {
stbtt_uint16 startCoverageIndex = ttUSHORT(rangeRecord + 4);
return startCoverageIndex + glyph - strawStart;
}
}
break;
}
default: return -1; // unsupported
}
return -1;
}
static stbtt_int32 stbtt__GetGlyphClass(stbtt_uint8 *classDefTable, int glyph)
{
stbtt_uint16 classDefFormat = ttUSHORT(classDefTable);
switch (classDefFormat)
{
case 1: {
stbtt_uint16 startGlyphID = ttUSHORT(classDefTable + 2);
stbtt_uint16 glyphCount = ttUSHORT(classDefTable + 4);
stbtt_uint8 *classDef1ValueArray = classDefTable + 6;
if (glyph >= startGlyphID && glyph < startGlyphID + glyphCount)
return (stbtt_int32)ttUSHORT(classDef1ValueArray + 2 * (glyph - startGlyphID));
break;
}
case 2: {
stbtt_uint16 classRangeCount = ttUSHORT(classDefTable + 2);
stbtt_uint8 *classRangeRecords = classDefTable + 4;
// Binary search.
stbtt_int32 l=0, r=classRangeCount-1, m;
int strawStart, strawEnd, needle=glyph;
while (l <= r) {
stbtt_uint8 *classRangeRecord;
m = (l + r) >> 1;
classRangeRecord = classRangeRecords + 6 * m;
strawStart = ttUSHORT(classRangeRecord);
strawEnd = ttUSHORT(classRangeRecord + 2);
if (needle < strawStart)
r = m - 1;
else if (needle > strawEnd)
l = m + 1;
else
return (stbtt_int32)ttUSHORT(classRangeRecord + 4);
}
break;
}
default:
return -1; // Unsupported definition type, return an error.
}
// "All glyphs not assigned to a class fall into class 0". (OpenType spec)
return 0;
}
// Define to STBTT_assert(x) if you want to break on unimplemented formats.
#define STBTT_GPOS_TODO_assert(x)
static stbtt_int32 stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
{
stbtt_uint16 lookupListOffset;
stbtt_uint8 *lookupList;
stbtt_uint16 lookupCount;
stbtt_uint8 *data;
stbtt_int32 i, sti;
if (!info->gpos) return 0;
data = info->data + info->gpos;
if (ttUSHORT(data+0) != 1) return 0; // Major version 1
if (ttUSHORT(data+2) != 0) return 0; // Minor version 0
lookupListOffset = ttUSHORT(data+8);
lookupList = data + lookupListOffset;
lookupCount = ttUSHORT(lookupList);
for (i=0; i<lookupCount; ++i) {
stbtt_uint16 lookupOffset = ttUSHORT(lookupList + 2 + 2 * i);
stbtt_uint8 *lookupTable = lookupList + lookupOffset;
stbtt_uint16 lookupType = ttUSHORT(lookupTable);
stbtt_uint16 subTableCount = ttUSHORT(lookupTable + 4);
stbtt_uint8 *subTableOffsets = lookupTable + 6;
if (lookupType != 2) // Pair Adjustment Positioning Subtable
continue;
for (sti=0; sti<subTableCount; sti++) {
stbtt_uint16 subtableOffset = ttUSHORT(subTableOffsets + 2 * sti);
stbtt_uint8 *table = lookupTable + subtableOffset;
stbtt_uint16 posFormat = ttUSHORT(table);
stbtt_uint16 coverageOffset = ttUSHORT(table + 2);
stbtt_int32 coverageIndex = stbtt__GetCoverageIndex(table + coverageOffset, glyph1);
if (coverageIndex == -1) continue;
switch (posFormat) {
case 1: {
stbtt_int32 l, r, m;
int straw, needle;
stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
if (valueFormat1 == 4 && valueFormat2 == 0) { // Support more formats?
stbtt_int32 valueRecordPairSizeInBytes = 2;
stbtt_uint16 pairSetCount = ttUSHORT(table + 8);
stbtt_uint16 pairPosOffset = ttUSHORT(table + 10 + 2 * coverageIndex);
stbtt_uint8 *pairValueTable = table + pairPosOffset;
stbtt_uint16 pairValueCount = ttUSHORT(pairValueTable);
stbtt_uint8 *pairValueArray = pairValueTable + 2;
if (coverageIndex >= pairSetCount) return 0;
needle=glyph2;
r=pairValueCount-1;
l=0;
// Binary search.
while (l <= r) {
stbtt_uint16 secondGlyph;
stbtt_uint8 *pairValue;
m = (l + r) >> 1;
pairValue = pairValueArray + (2 + valueRecordPairSizeInBytes) * m;
secondGlyph = ttUSHORT(pairValue);
straw = secondGlyph;
if (needle < straw)
r = m - 1;
else if (needle > straw)
l = m + 1;
else {
stbtt_int16 xAdvance = ttSHORT(pairValue + 2);
return xAdvance;
}
}
} else
return 0;
break;
}
case 2: {
stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
if (valueFormat1 == 4 && valueFormat2 == 0) { // Support more formats?
stbtt_uint16 classDef1Offset = ttUSHORT(table + 8);
stbtt_uint16 classDef2Offset = ttUSHORT(table + 10);
int glyph1class = stbtt__GetGlyphClass(table + classDef1Offset, glyph1);
int glyph2class = stbtt__GetGlyphClass(table + classDef2Offset, glyph2);
stbtt_uint16 class1Count = ttUSHORT(table + 12);
stbtt_uint16 class2Count = ttUSHORT(table + 14);
stbtt_uint8 *class1Records, *class2Records;
stbtt_int16 xAdvance;
if (glyph1class < 0 || glyph1class >= class1Count) return 0; // malformed
if (glyph2class < 0 || glyph2class >= class2Count) return 0; // malformed
class1Records = table + 16;
class2Records = class1Records + 2 * (glyph1class * class2Count);
xAdvance = ttSHORT(class2Records + 2 * glyph2class);
return xAdvance;
} else
return 0;
break;
}
default:
return 0; // Unsupported position format
}
}
}
return 0;
}
STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int g1, int g2)
{
int xAdvance = 0;
if (info->gpos)
xAdvance += stbtt__GetGlyphGPOSInfoAdvance(info, g1, g2);
else if (info->kern)
xAdvance += stbtt__GetGlyphKernInfoAdvance(info, g1, g2);
return xAdvance;
}
STBTT_DEF int stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2)
{
if (!info->kern && !info->gpos) // if no kerning table, don't waste time looking up both codepoint->glyphs
return 0;
return stbtt_GetGlyphKernAdvance(info, stbtt_FindGlyphIndex(info,ch1), stbtt_FindGlyphIndex(info,ch2));
}
STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing)
{
stbtt_GetGlyphHMetrics(info, stbtt_FindGlyphIndex(info,codepoint), advanceWidth, leftSideBearing);
}
STBTT_DEF void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap)
{
if (ascent ) *ascent = ttSHORT(info->data+info->hhea + 4);
if (descent) *descent = ttSHORT(info->data+info->hhea + 6);
if (lineGap) *lineGap = ttSHORT(info->data+info->hhea + 8);
}
STBTT_DEF int stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAscent, int *typoDescent, int *typoLineGap)
{
int tab = stbtt__find_table(info->data, info->fontstart, "OS/2");
if (!tab)
return 0;
if (typoAscent ) *typoAscent = ttSHORT(info->data+tab + 68);
if (typoDescent) *typoDescent = ttSHORT(info->data+tab + 70);
if (typoLineGap) *typoLineGap = ttSHORT(info->data+tab + 72);
return 1;
}
STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1)
{
*x0 = ttSHORT(info->data + info->head + 36);
*y0 = ttSHORT(info->data + info->head + 38);
*x1 = ttSHORT(info->data + info->head + 40);
*y1 = ttSHORT(info->data + info->head + 42);
}
STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float height)
{
int fheight = ttSHORT(info->data + info->hhea + 4) - ttSHORT(info->data + info->hhea + 6);
return (float) height / fheight;
}
STBTT_DEF float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels)
{
int unitsPerEm = ttUSHORT(info->data + info->head + 18);
return pixels / unitsPerEm;
}
STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *v)
{
STBTT_free(v, info->userdata);
}
STBTT_DEF stbtt_uint8 *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl)
{
int i;
stbtt_uint8 *data = info->data;
stbtt_uint8 *svg_doc_list = data + stbtt__get_svg((stbtt_fontinfo *) info);
int numEntries = ttUSHORT(svg_doc_list);
stbtt_uint8 *svg_docs = svg_doc_list + 2;
for(i=0; i<numEntries; i++) {
stbtt_uint8 *svg_doc = svg_docs + (12 * i);
if ((gl >= ttUSHORT(svg_doc)) && (gl <= ttUSHORT(svg_doc + 2)))
return svg_doc;
}
return 0;
}
STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg)
{
stbtt_uint8 *data = info->data;
stbtt_uint8 *svg_doc;
if (info->svg == 0)
return 0;
svg_doc = stbtt_FindSVGDoc(info, gl);
if (svg_doc != NULL) {
*svg = (char *) data + info->svg + ttULONG(svg_doc + 4);
return ttULONG(svg_doc + 8);
} else {
return 0;
}
}
STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg)
{
return stbtt_GetGlyphSVG(info, stbtt_FindGlyphIndex(info, unicode_codepoint), svg);
}
//////////////////////////////////////////////////////////////////////////////
//
// antialiasing software rasterizer
//
STBTT_DEF void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
int x0=0,y0=0,x1,y1; // =0 suppresses compiler warning
if (!stbtt_GetGlyphBox(font, glyph, &x0,&y0,&x1,&y1)) {
// e.g. space character
if (ix0) *ix0 = 0;
if (iy0) *iy0 = 0;
if (ix1) *ix1 = 0;
if (iy1) *iy1 = 0;
} else {
// move to integral bboxes (treating pixels as little squares, what pixels get touched)?
if (ix0) *ix0 = STBTT_ifloor( x0 * scale_x + shift_x);
if (iy0) *iy0 = STBTT_ifloor(-y1 * scale_y + shift_y);
if (ix1) *ix1 = STBTT_iceil ( x1 * scale_x + shift_x);
if (iy1) *iy1 = STBTT_iceil (-y0 * scale_y + shift_y);
}
}
STBTT_DEF void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
stbtt_GetGlyphBitmapBoxSubpixel(font, glyph, scale_x, scale_y,0.0f,0.0f, ix0, iy0, ix1, iy1);
}
STBTT_DEF void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
stbtt_GetGlyphBitmapBoxSubpixel(font, stbtt_FindGlyphIndex(font,codepoint), scale_x, scale_y,shift_x,shift_y, ix0,iy0,ix1,iy1);
}
STBTT_DEF void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
stbtt_GetCodepointBitmapBoxSubpixel(font, codepoint, scale_x, scale_y,0.0f,0.0f, ix0,iy0,ix1,iy1);
}
//////////////////////////////////////////////////////////////////////////////
//
// Rasterizer
typedef struct stbtt__hheap_chunk
{
struct stbtt__hheap_chunk *next;
} stbtt__hheap_chunk;
typedef struct stbtt__hheap
{
struct stbtt__hheap_chunk *head;
void *first_free;
int num_remaining_in_head_chunk;
} stbtt__hheap;
static void *stbtt__hheap_alloc(stbtt__hheap *hh, size_t size, void *userdata)
{
if (hh->first_free) {
void *p = hh->first_free;
hh->first_free = * (void **) p;
return p;
} else {
if (hh->num_remaining_in_head_chunk == 0) {
int count = (size < 32 ? 2000 : size < 128 ? 800 : 100);
stbtt__hheap_chunk *c = (stbtt__hheap_chunk *) STBTT_malloc(sizeof(stbtt__hheap_chunk) + size * count, userdata);
if (c == NULL)
return NULL;
c->next = hh->head;
hh->head = c;
hh->num_remaining_in_head_chunk = count;
}
--hh->num_remaining_in_head_chunk;
return (char *) (hh->head) + sizeof(stbtt__hheap_chunk) + size * hh->num_remaining_in_head_chunk;
}
}
static void stbtt__hheap_free(stbtt__hheap *hh, void *p)
{
*(void **) p = hh->first_free;
hh->first_free = p;
}
static void stbtt__hheap_cleanup(stbtt__hheap *hh, void *userdata)
{
stbtt__hheap_chunk *c = hh->head;
while (c) {
stbtt__hheap_chunk *n = c->next;
STBTT_free(c, userdata);
c = n;
}
}
typedef struct stbtt__edge {
float x0,y0, x1,y1;
int invert;
} stbtt__edge;
typedef struct stbtt__active_edge
{
struct stbtt__active_edge *next;
#if STBTT_RASTERIZER_VERSION==1
int x,dx;
float ey;
int direction;
#elif STBTT_RASTERIZER_VERSION==2
float fx,fdx,fdy;
float direction;
float sy;
float ey;
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
} stbtt__active_edge;
#if STBTT_RASTERIZER_VERSION == 1
#define STBTT_FIXSHIFT 10
#define STBTT_FIX (1 << STBTT_FIXSHIFT)
#define STBTT_FIXMASK (STBTT_FIX-1)
static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, int off_x, float start_point, void *userdata)
{
stbtt__active_edge *z = (stbtt__active_edge *) stbtt__hheap_alloc(hh, sizeof(*z), userdata);
float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
STBTT_assert(z != NULL);
if (!z) return z;
// round dx down to avoid overshooting
if (dxdy < 0)
z->dx = -STBTT_ifloor(STBTT_FIX * -dxdy);
else
z->dx = STBTT_ifloor(STBTT_FIX * dxdy);
z->x = STBTT_ifloor(STBTT_FIX * e->x0 + z->dx * (start_point - e->y0)); // use z->dx so when we offset later it's by the same amount
z->x -= off_x * STBTT_FIX;
z->ey = e->y1;
z->next = 0;
z->direction = e->invert ? 1 : -1;
return z;
}
#elif STBTT_RASTERIZER_VERSION == 2
static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, int off_x, float start_point, void *userdata)
{
stbtt__active_edge *z = (stbtt__active_edge *) stbtt__hheap_alloc(hh, sizeof(*z), userdata);
float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
STBTT_assert(z != NULL);
//STBTT_assert(e->y0 <= start_point);
if (!z) return z;
z->fdx = dxdy;
z->fdy = dxdy != 0.0f ? (1.0f/dxdy) : 0.0f;
z->fx = e->x0 + dxdy * (start_point - e->y0);
z->fx -= off_x;
z->direction = e->invert ? 1.0f : -1.0f;
z->sy = e->y0;
z->ey = e->y1;
z->next = 0;
return z;
}
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
#if STBTT_RASTERIZER_VERSION == 1
// note: this routine clips fills that extend off the edges... ideally this
// wouldn't happen, but it could happen if the truetype glyph bounding boxes
// are wrong, or if the user supplies a too-small bitmap
static void stbtt__fill_active_edges(unsigned char *scanline, int len, stbtt__active_edge *e, int max_weight)
{
// non-zero winding fill
int x0=0, w=0;
while (e) {
if (w == 0) {
// if we're currently at zero, we need to record the edge start point
x0 = e->x; w += e->direction;
} else {
int x1 = e->x; w += e->direction;
// if we went to zero, we need to draw
if (w == 0) {
int i = x0 >> STBTT_FIXSHIFT;
int j = x1 >> STBTT_FIXSHIFT;
if (i < len && j >= 0) {
if (i == j) {
// x0,x1 are the same pixel, so compute combined coverage
scanline[i] = scanline[i] + (stbtt_uint8) ((x1 - x0) * max_weight >> STBTT_FIXSHIFT);
} else {
if (i >= 0) // add antialiasing for x0
scanline[i] = scanline[i] + (stbtt_uint8) (((STBTT_FIX - (x0 & STBTT_FIXMASK)) * max_weight) >> STBTT_FIXSHIFT);
else
i = -1; // clip
if (j < len) // add antialiasing for x1
scanline[j] = scanline[j] + (stbtt_uint8) (((x1 & STBTT_FIXMASK) * max_weight) >> STBTT_FIXSHIFT);
else
j = len; // clip
for (++i; i < j; ++i) // fill pixels between x0 and x1
scanline[i] = scanline[i] + (stbtt_uint8) max_weight;
}
}
}
}
e = e->next;
}
}
static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
{
stbtt__hheap hh = { 0, 0, 0 };
stbtt__active_edge *active = NULL;
int y,j=0;
int max_weight = (255 / vsubsample); // weight per vertical scanline
int s; // vertical subsample index
unsigned char scanline_data[512], *scanline;
if (result->w > 512)
scanline = (unsigned char *) STBTT_malloc(result->w, userdata);
else
scanline = scanline_data;
y = off_y * vsubsample;
e[n].y0 = (off_y + result->h) * (float) vsubsample + 1;
while (j < result->h) {
STBTT_memset(scanline, 0, result->w);
for (s=0; s < vsubsample; ++s) {
// find center of pixel for this scanline
float scan_y = y + 0.5f;
stbtt__active_edge **step = &active;
// update all active edges;
// remove all active edges that terminate before the center of this scanline
while (*step) {
stbtt__active_edge * z = *step;
if (z->ey <= scan_y) {
*step = z->next; // delete from list
STBTT_assert(z->direction);
z->direction = 0;
stbtt__hheap_free(&hh, z);
} else {
z->x += z->dx; // advance to position for current scanline
step = &((*step)->next); // advance through list
}
}
// resort the list if needed
for(;;) {
int changed=0;
step = &active;
while (*step && (*step)->next) {
if ((*step)->x > (*step)->next->x) {
stbtt__active_edge *t = *step;
stbtt__active_edge *q = t->next;
t->next = q->next;
q->next = t;
*step = q;
changed = 1;
}
step = &(*step)->next;
}
if (!changed) break;
}
// insert all edges that start before the center of this scanline -- omit ones that also end on this scanline
while (e->y0 <= scan_y) {
if (e->y1 > scan_y) {
stbtt__active_edge *z = stbtt__new_active(&hh, e, off_x, scan_y, userdata);
if (z != NULL) {
// find insertion point
if (active == NULL)
active = z;
else if (z->x < active->x) {
// insert at front
z->next = active;
active = z;
} else {
// find thing to insert AFTER
stbtt__active_edge *p = active;
while (p->next && p->next->x < z->x)
p = p->next;
// at this point, p->next->x is NOT < z->x
z->next = p->next;
p->next = z;
}
}
}
++e;
}
// now process all active edges in XOR fashion
if (active)
stbtt__fill_active_edges(scanline, result->w, active, max_weight);
++y;
}
STBTT_memcpy(result->pixels + j * result->stride, scanline, result->w);
++j;
}
stbtt__hheap_cleanup(&hh, userdata);
if (scanline != scanline_data)
STBTT_free(scanline, userdata);
}
#elif STBTT_RASTERIZER_VERSION == 2
// the edge passed in here does not cross the vertical line at x or the vertical line at x+1
// (i.e. it has already been clipped to those)
static void stbtt__handle_clipped_edge(float *scanline, int x, stbtt__active_edge *e, float x0, float y0, float x1, float y1)
{
if (y0 == y1) return;
STBTT_assert(y0 < y1);
STBTT_assert(e->sy <= e->ey);
if (y0 > e->ey) return;
if (y1 < e->sy) return;
if (y0 < e->sy) {
x0 += (x1-x0) * (e->sy - y0) / (y1-y0);
y0 = e->sy;
}
if (y1 > e->ey) {
x1 += (x1-x0) * (e->ey - y1) / (y1-y0);
y1 = e->ey;
}
if (x0 == x)
STBTT_assert(x1 <= x+1);
else if (x0 == x+1)
STBTT_assert(x1 >= x);
else if (x0 <= x)
STBTT_assert(x1 <= x);
else if (x0 >= x+1)
STBTT_assert(x1 >= x+1);
else
STBTT_assert(x1 >= x && x1 <= x+1);
if (x0 <= x && x1 <= x)
scanline[x] += e->direction * (y1-y0);
else if (x0 >= x+1 && x1 >= x+1)
;
else {
STBTT_assert(x0 >= x && x0 <= x+1 && x1 >= x && x1 <= x+1);
scanline[x] += e->direction * (y1-y0) * (1-((x0-x)+(x1-x))/2); // coverage = 1 - average x position
}
}
static float stbtt__sized_trapezoid_area(float height, float top_width, float bottom_width)
{
STBTT_assert(top_width >= 0);
STBTT_assert(bottom_width >= 0);
return (top_width + bottom_width) / 2.0f * height;
}
static float stbtt__position_trapezoid_area(float height, float tx0, float tx1, float bx0, float bx1)
{
return stbtt__sized_trapezoid_area(height, tx1 - tx0, bx1 - bx0);
}
static float stbtt__sized_triangle_area(float height, float width)
{
return height * width / 2;
}
static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill, int len, stbtt__active_edge *e, float y_top)
{
float y_bottom = y_top+1;
while (e) {
// brute force every pixel
// compute intersection points with top & bottom
STBTT_assert(e->ey >= y_top);
if (e->fdx == 0) {
float x0 = e->fx;
if (x0 < len) {
if (x0 >= 0) {
stbtt__handle_clipped_edge(scanline,(int) x0,e, x0,y_top, x0,y_bottom);
stbtt__handle_clipped_edge(scanline_fill-1,(int) x0+1,e, x0,y_top, x0,y_bottom);
} else {
stbtt__handle_clipped_edge(scanline_fill-1,0,e, x0,y_top, x0,y_bottom);
}
}
} else {
float x0 = e->fx;
float dx = e->fdx;
float xb = x0 + dx;
float x_top, x_bottom;
float sy0,sy1;
float dy = e->fdy;
STBTT_assert(e->sy <= y_bottom && e->ey >= y_top);
// compute endpoints of line segment clipped to this scanline (if the
// line segment starts on this scanline. x0 is the intersection of the
// line with y_top, but that may be off the line segment.
if (e->sy > y_top) {
x_top = x0 + dx * (e->sy - y_top);
sy0 = e->sy;
} else {
x_top = x0;
sy0 = y_top;
}
if (e->ey < y_bottom) {
x_bottom = x0 + dx * (e->ey - y_top);
sy1 = e->ey;
} else {
x_bottom = xb;
sy1 = y_bottom;
}
if (x_top >= 0 && x_bottom >= 0 && x_top < len && x_bottom < len) {
// from here on, we don't have to range check x values
if ((int) x_top == (int) x_bottom) {
float height;
// simple case, only spans one pixel
int x = (int) x_top;
height = (sy1 - sy0) * e->direction;
STBTT_assert(x >= 0 && x < len);
scanline[x] += stbtt__position_trapezoid_area(height, x_top, x+1.0f, x_bottom, x+1.0f);
scanline_fill[x] += height; // everything right of this pixel is filled
} else {
int x,x1,x2;
float y_crossing, y_final, step, sign, area;
// covers 2+ pixels
if (x_top > x_bottom) {
// flip scanline vertically; signed area is the same
float t;
sy0 = y_bottom - (sy0 - y_top);
sy1 = y_bottom - (sy1 - y_top);
t = sy0, sy0 = sy1, sy1 = t;
t = x_bottom, x_bottom = x_top, x_top = t;
dx = -dx;
dy = -dy;
t = x0, x0 = xb, xb = t;
}
STBTT_assert(dy >= 0);
STBTT_assert(dx >= 0);
x1 = (int) x_top;
x2 = (int) x_bottom;
// compute intersection with y axis at x1+1
y_crossing = y_top + dy * (x1+1 - x0);
// compute intersection with y axis at x2
y_final = y_top + dy * (x2 - x0);
// x1 x_top x2 x_bottom
// y_top +------|-----+------------+------------+--------|---+------------+
// | | | | | |
// | | | | | |
// sy0 | Txxxxx|............|............|............|............|
// y_crossing | *xxxxx.......|............|............|............|
// | | xxxxx..|............|............|............|
// | | /- xx*xxxx........|............|............|
// | | dy < | xxxxxx..|............|............|
// y_final | | \- | xx*xxx.........|............|
// sy1 | | | | xxxxxB...|............|
// | | | | | |
// | | | | | |
// y_bottom +------------+------------+------------+------------+------------+
//
// goal is to measure the area covered by '.' in each pixel
// if x2 is right at the right edge of x1, y_crossing can blow up, github #1057
// @TODO: maybe test against sy1 rather than y_bottom?
if (y_crossing > y_bottom)
y_crossing = y_bottom;
sign = e->direction;
// area of the rectangle covered from sy0..y_crossing
area = sign * (y_crossing-sy0);
// area of the triangle (x_top,sy0), (x1+1,sy0), (x1+1,y_crossing)
scanline[x1] += stbtt__sized_triangle_area(area, x1+1 - x_top);
// check if final y_crossing is blown up; no test case for this
if (y_final > y_bottom) {
int denom = (x2 - (x1+1));
y_final = y_bottom;
if (denom != 0) { // [DEAR IMGUI] Avoid div by zero (https://github.com/nothings/stb/issues/1316)
dy = (y_final - y_crossing ) / denom; // if denom=0, y_final = y_crossing, so y_final <= y_bottom
}
}
// in second pixel, area covered by line segment found in first pixel
// is always a rectangle 1 wide * the height of that line segment; this
// is exactly what the variable 'area' stores. it also gets a contribution
// from the line segment within it. the THIRD pixel will get the first
// pixel's rectangle contribution, the second pixel's rectangle contribution,
// and its own contribution. the 'own contribution' is the same in every pixel except
// the leftmost and rightmost, a trapezoid that slides down in each pixel.
// the second pixel's contribution to the third pixel will be the
// rectangle 1 wide times the height change in the second pixel, which is dy.
step = sign * dy * 1; // dy is dy/dx, change in y for every 1 change in x,
// which multiplied by 1-pixel-width is how much pixel area changes for each step in x
// so the area advances by 'step' every time
for (x = x1+1; x < x2; ++x) {
scanline[x] += area + step/2; // area of trapezoid is 1*step/2
area += step;
}
STBTT_assert(STBTT_fabs(area) <= 1.01f); // accumulated error from area += step unless we round step down
STBTT_assert(sy1 > y_final-0.01f);
// area covered in the last pixel is the rectangle from all the pixels to the left,
// plus the trapezoid filled by the line segment in this pixel all the way to the right edge
scanline[x2] += area + sign * stbtt__position_trapezoid_area(sy1-y_final, (float) x2, x2+1.0f, x_bottom, x2+1.0f);
// the rest of the line is filled based on the total height of the line segment in this pixel
scanline_fill[x2] += sign * (sy1-sy0);
}
} else {
// if edge goes outside of box we're drawing, we require
// clipping logic. since this does not match the intended use
// of this library, we use a different, very slow brute
// force implementation
// note though that this does happen some of the time because
// x_top and x_bottom can be extrapolated at the top & bottom of
// the shape and actually lie outside the bounding box
int x;
for (x=0; x < len; ++x) {
// cases:
//
// there can be up to two intersections with the pixel. any intersection
// with left or right edges can be handled by splitting into two (or three)
// regions. intersections with top & bottom do not necessitate case-wise logic.
//
// the old way of doing this found the intersections with the left & right edges,
// then used some simple logic to produce up to three segments in sorted order
// from top-to-bottom. however, this had a problem: if an x edge was epsilon
// across the x border, then the corresponding y position might not be distinct
// from the other y segment, and it might ignored as an empty segment. to avoid
// that, we need to explicitly produce segments based on x positions.
// rename variables to clearly-defined pairs
float y0 = y_top;
float x1 = (float) (x);
float x2 = (float) (x+1);
float x3 = xb;
float y3 = y_bottom;
// x = e->x + e->dx * (y-y_top)
// (y-y_top) = (x - e->x) / e->dx
// y = (x - e->x) / e->dx + y_top
float y1 = (x - x0) / dx + y_top;
float y2 = (x+1 - x0) / dx + y_top;
if (x0 < x1 && x3 > x2) { // three segments descending down-right
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
} else if (x3 < x1 && x0 > x2) { // three segments descending down-left
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
} else if (x0 < x1 && x3 > x1) { // two segments across x, down-right
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
} else if (x3 < x1 && x0 > x1) { // two segments across x, down-left
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
} else if (x0 < x2 && x3 > x2) { // two segments across x+1, down-right
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
} else if (x3 < x2 && x0 > x2) { // two segments across x+1, down-left
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
} else { // one segment
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x3,y3);
}
}
}
}
e = e->next;
}
}
// directly AA rasterize edges w/o supersampling
static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
{
stbtt__hheap hh = { 0, 0, 0 };
stbtt__active_edge *active = NULL;
int y,j=0, i;
float scanline_data[129], *scanline, *scanline2;
STBTT__NOTUSED(vsubsample);
if (result->w > 64)
scanline = (float *) STBTT_malloc((result->w*2+1) * sizeof(float), userdata);
else
scanline = scanline_data;
scanline2 = scanline + result->w;
y = off_y;
e[n].y0 = (float) (off_y + result->h) + 1;
while (j < result->h) {
// find center of pixel for this scanline
float scan_y_top = y + 0.0f;
float scan_y_bottom = y + 1.0f;
stbtt__active_edge **step = &active;
STBTT_memset(scanline , 0, result->w*sizeof(scanline[0]));
STBTT_memset(scanline2, 0, (result->w+1)*sizeof(scanline[0]));
// update all active edges;
// remove all active edges that terminate before the top of this scanline
while (*step) {
stbtt__active_edge * z = *step;
if (z->ey <= scan_y_top) {
*step = z->next; // delete from list
STBTT_assert(z->direction);
z->direction = 0;
stbtt__hheap_free(&hh, z);
} else {
step = &((*step)->next); // advance through list
}
}
// insert all edges that start before the bottom of this scanline
while (e->y0 <= scan_y_bottom) {
if (e->y0 != e->y1) {
stbtt__active_edge *z = stbtt__new_active(&hh, e, off_x, scan_y_top, userdata);
if (z != NULL) {
if (j == 0 && off_y != 0) {
if (z->ey < scan_y_top) {
// this can happen due to subpixel positioning and some kind of fp rounding error i think
z->ey = scan_y_top;
}
}
STBTT_assert(z->ey >= scan_y_top); // if we get really unlucky a tiny bit of an edge can be out of bounds
// insert at front
z->next = active;
active = z;
}
}
++e;
}
// now process all active edges
if (active)
stbtt__fill_active_edges_new(scanline, scanline2+1, result->w, active, scan_y_top);
{
float sum = 0;
for (i=0; i < result->w; ++i) {
float k;
int m;
sum += scanline2[i];
k = scanline[i] + sum;
k = (float) STBTT_fabs(k)*255 + 0.5f;
m = (int) k;
if (m > 255) m = 255;
result->pixels[j*result->stride + i] = (unsigned char) m;
}
}
// advance all the edges
step = &active;
while (*step) {
stbtt__active_edge *z = *step;
z->fx += z->fdx; // advance to position for current scanline
step = &((*step)->next); // advance through list
}
++y;
++j;
}
stbtt__hheap_cleanup(&hh, userdata);
if (scanline != scanline_data)
STBTT_free(scanline, userdata);
}
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
#define STBTT__COMPARE(a,b) ((a)->y0 < (b)->y0)
static void stbtt__sort_edges_ins_sort(stbtt__edge *p, int n)
{
int i,j;
for (i=1; i < n; ++i) {
stbtt__edge t = p[i], *a = &t;
j = i;
while (j > 0) {
stbtt__edge *b = &p[j-1];
int c = STBTT__COMPARE(a,b);
if (!c) break;
p[j] = p[j-1];
--j;
}
if (i != j)
p[j] = t;
}
}
static void stbtt__sort_edges_quicksort(stbtt__edge *p, int n)
{
/* threshold for transitioning to insertion sort */
while (n > 12) {
stbtt__edge t;
int c01,c12,c,m,i,j;
/* compute median of three */
m = n >> 1;
c01 = STBTT__COMPARE(&p[0],&p[m]);
c12 = STBTT__COMPARE(&p[m],&p[n-1]);
/* if 0 >= mid >= end, or 0 < mid < end, then use mid */
if (c01 != c12) {
/* otherwise, we'll need to swap something else to middle */
int z;
c = STBTT__COMPARE(&p[0],&p[n-1]);
/* 0>mid && mid<n: 0>n => n; 0<n => 0 */
/* 0<mid && mid>n: 0>n => 0; 0<n => n */
z = (c == c12) ? 0 : n-1;
t = p[z];
p[z] = p[m];
p[m] = t;
}
/* now p[m] is the median-of-three */
/* swap it to the beginning so it won't move around */
t = p[0];
p[0] = p[m];
p[m] = t;
/* partition loop */
i=1;
j=n-1;
for(;;) {
/* handling of equality is crucial here */
/* for sentinels & efficiency with duplicates */
for (;;++i) {
if (!STBTT__COMPARE(&p[i], &p[0])) break;
}
for (;;--j) {
if (!STBTT__COMPARE(&p[0], &p[j])) break;
}
/* make sure we haven't crossed */
if (i >= j) break;
t = p[i];
p[i] = p[j];
p[j] = t;
++i;
--j;
}
/* recurse on smaller side, iterate on larger */
if (j < (n-i)) {
stbtt__sort_edges_quicksort(p,j);
p = p+i;
n = n-i;
} else {
stbtt__sort_edges_quicksort(p+i, n-i);
n = j;
}
}
}
static void stbtt__sort_edges(stbtt__edge *p, int n)
{
stbtt__sort_edges_quicksort(p, n);
stbtt__sort_edges_ins_sort(p, n);
}
typedef struct
{
float x,y;
} stbtt__point;
static void stbtt__rasterize(stbtt__bitmap *result, stbtt__point *pts, int *wcount, int windings, float scale_x, float scale_y, float shift_x, float shift_y, int off_x, int off_y, int invert, void *userdata)
{
float y_scale_inv = invert ? -scale_y : scale_y;
stbtt__edge *e;
int n,i,j,k,m;
#if STBTT_RASTERIZER_VERSION == 1
int vsubsample = result->h < 8 ? 15 : 5;
#elif STBTT_RASTERIZER_VERSION == 2
int vsubsample = 1;
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
// vsubsample should divide 255 evenly; otherwise we won't reach full opacity
// now we have to blow out the windings into explicit edge lists
n = 0;
for (i=0; i < windings; ++i)
n += wcount[i];
e = (stbtt__edge *) STBTT_malloc(sizeof(*e) * (n+1), userdata); // add an extra one as a sentinel
if (e == 0) return;
n = 0;
m=0;
for (i=0; i < windings; ++i) {
stbtt__point *p = pts + m;
m += wcount[i];
j = wcount[i]-1;
for (k=0; k < wcount[i]; j=k++) {
int a=k,b=j;
// skip the edge if horizontal
if (p[j].y == p[k].y)
continue;
// add edge from j to k to the list
e[n].invert = 0;
if (invert ? p[j].y > p[k].y : p[j].y < p[k].y) {
e[n].invert = 1;
a=j,b=k;
}
e[n].x0 = p[a].x * scale_x + shift_x;
e[n].y0 = (p[a].y * y_scale_inv + shift_y) * vsubsample;
e[n].x1 = p[b].x * scale_x + shift_x;
e[n].y1 = (p[b].y * y_scale_inv + shift_y) * vsubsample;
++n;
}
}
// now sort the edges by their highest point (should snap to integer, and then by x)
//STBTT_sort(e, n, sizeof(e[0]), stbtt__edge_compare);
stbtt__sort_edges(e, n);
// now, traverse the scanlines and find the intersections on each scanline, use xor winding rule
stbtt__rasterize_sorted_edges(result, e, n, vsubsample, off_x, off_y, userdata);
STBTT_free(e, userdata);
}
static void stbtt__add_point(stbtt__point *points, int n, float x, float y)
{
if (!points) return; // during first pass, it's unallocated
points[n].x = x;
points[n].y = y;
}
// tessellate until threshold p is happy... @TODO warped to compensate for non-linear stretching
static int stbtt__tesselate_curve(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float objspace_flatness_squared, int n)
{
// midpoint
float mx = (x0 + 2*x1 + x2)/4;
float my = (y0 + 2*y1 + y2)/4;
// versus directly drawn line
float dx = (x0+x2)/2 - mx;
float dy = (y0+y2)/2 - my;
if (n > 16) // 65536 segments on one curve better be enough!
return 1;
if (dx*dx+dy*dy > objspace_flatness_squared) { // half-pixel error allowed... need to be smaller if AA
stbtt__tesselate_curve(points, num_points, x0,y0, (x0+x1)/2.0f,(y0+y1)/2.0f, mx,my, objspace_flatness_squared,n+1);
stbtt__tesselate_curve(points, num_points, mx,my, (x1+x2)/2.0f,(y1+y2)/2.0f, x2,y2, objspace_flatness_squared,n+1);
} else {
stbtt__add_point(points, *num_points,x2,y2);
*num_points = *num_points+1;
}
return 1;
}
static void stbtt__tesselate_cubic(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float objspace_flatness_squared, int n)
{
// @TODO this "flatness" calculation is just made-up nonsense that seems to work well enough
float dx0 = x1-x0;
float dy0 = y1-y0;
float dx1 = x2-x1;
float dy1 = y2-y1;
float dx2 = x3-x2;
float dy2 = y3-y2;
float dx = x3-x0;
float dy = y3-y0;
float longlen = (float) (STBTT_sqrt(dx0*dx0+dy0*dy0)+STBTT_sqrt(dx1*dx1+dy1*dy1)+STBTT_sqrt(dx2*dx2+dy2*dy2));
float shortlen = (float) STBTT_sqrt(dx*dx+dy*dy);
float flatness_squared = longlen*longlen-shortlen*shortlen;
if (n > 16) // 65536 segments on one curve better be enough!
return;
if (flatness_squared > objspace_flatness_squared) {
float x01 = (x0+x1)/2;
float y01 = (y0+y1)/2;
float x12 = (x1+x2)/2;
float y12 = (y1+y2)/2;
float x23 = (x2+x3)/2;
float y23 = (y2+y3)/2;
float xa = (x01+x12)/2;
float ya = (y01+y12)/2;
float xb = (x12+x23)/2;
float yb = (y12+y23)/2;
float mx = (xa+xb)/2;
float my = (ya+yb)/2;
stbtt__tesselate_cubic(points, num_points, x0,y0, x01,y01, xa,ya, mx,my, objspace_flatness_squared,n+1);
stbtt__tesselate_cubic(points, num_points, mx,my, xb,yb, x23,y23, x3,y3, objspace_flatness_squared,n+1);
} else {
stbtt__add_point(points, *num_points,x3,y3);
*num_points = *num_points+1;
}
}
// returns number of contours
static stbtt__point *stbtt_FlattenCurves(stbtt_vertex *vertices, int num_verts, float objspace_flatness, int **contour_lengths, int *num_contours, void *userdata)
{
stbtt__point *points=0;
int num_points=0;
float objspace_flatness_squared = objspace_flatness * objspace_flatness;
int i,n=0,start=0, pass;
// count how many "moves" there are to get the contour count
for (i=0; i < num_verts; ++i)
if (vertices[i].type == STBTT_vmove)
++n;
*num_contours = n;
if (n == 0) return 0;
*contour_lengths = (int *) STBTT_malloc(sizeof(**contour_lengths) * n, userdata);
if (*contour_lengths == 0) {
*num_contours = 0;
return 0;
}
// make two passes through the points so we don't need to realloc
for (pass=0; pass < 2; ++pass) {
float x=0,y=0;
if (pass == 1) {
points = (stbtt__point *) STBTT_malloc(num_points * sizeof(points[0]), userdata);
if (points == NULL) goto error;
}
num_points = 0;
n= -1;
for (i=0; i < num_verts; ++i) {
switch (vertices[i].type) {
case STBTT_vmove:
// start the next contour
if (n >= 0)
(*contour_lengths)[n] = num_points - start;
++n;
start = num_points;
x = vertices[i].x, y = vertices[i].y;
stbtt__add_point(points, num_points++, x,y);
break;
case STBTT_vline:
x = vertices[i].x, y = vertices[i].y;
stbtt__add_point(points, num_points++, x, y);
break;
case STBTT_vcurve:
stbtt__tesselate_curve(points, &num_points, x,y,
vertices[i].cx, vertices[i].cy,
vertices[i].x, vertices[i].y,
objspace_flatness_squared, 0);
x = vertices[i].x, y = vertices[i].y;
break;
case STBTT_vcubic:
stbtt__tesselate_cubic(points, &num_points, x,y,
vertices[i].cx, vertices[i].cy,
vertices[i].cx1, vertices[i].cy1,
vertices[i].x, vertices[i].y,
objspace_flatness_squared, 0);
x = vertices[i].x, y = vertices[i].y;
break;
}
}
(*contour_lengths)[n] = num_points - start;
}
return points;
error:
STBTT_free(points, userdata);
STBTT_free(*contour_lengths, userdata);
*contour_lengths = 0;
*num_contours = 0;
return NULL;
}
STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata)
{
float scale = scale_x > scale_y ? scale_y : scale_x;
int winding_count = 0;
int *winding_lengths = NULL;
stbtt__point *windings = stbtt_FlattenCurves(vertices, num_verts, flatness_in_pixels / scale, &winding_lengths, &winding_count, userdata);
if (windings) {
stbtt__rasterize(result, windings, winding_lengths, winding_count, scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, userdata);
STBTT_free(winding_lengths, userdata);
STBTT_free(windings, userdata);
}
}
STBTT_DEF void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata)
{
STBTT_free(bitmap, userdata);
}
STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff)
{
int ix0,iy0,ix1,iy1;
stbtt__bitmap gbm;
stbtt_vertex *vertices;
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
if (scale_x == 0) scale_x = scale_y;
if (scale_y == 0) {
if (scale_x == 0) {
STBTT_free(vertices, info->userdata);
return NULL;
}
scale_y = scale_x;
}
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,&ix1,&iy1);
// now we get the size
gbm.w = (ix1 - ix0);
gbm.h = (iy1 - iy0);
gbm.pixels = NULL; // in case we error
if (width ) *width = gbm.w;
if (height) *height = gbm.h;
if (xoff ) *xoff = ix0;
if (yoff ) *yoff = iy0;
if (gbm.w && gbm.h) {
gbm.pixels = (unsigned char *) STBTT_malloc(gbm.w * gbm.h, info->userdata);
if (gbm.pixels) {
gbm.stride = gbm.w;
stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0, iy0, 1, info->userdata);
}
}
STBTT_free(vertices, info->userdata);
return gbm.pixels;
}
STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y, 0.0f, 0.0f, glyph, width, height, xoff, yoff);
}
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph)
{
int ix0,iy0;
stbtt_vertex *vertices;
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
stbtt__bitmap gbm;
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,0,0);
gbm.pixels = output;
gbm.w = out_w;
gbm.h = out_h;
gbm.stride = out_stride;
if (gbm.w && gbm.h)
stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0,iy0, 1, info->userdata);
STBTT_free(vertices, info->userdata);
}
STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph)
{
stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, glyph);
}
STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y,shift_x,shift_y, stbtt_FindGlyphIndex(info,codepoint), width,height,xoff,yoff);
}
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint)
{
stbtt_MakeGlyphBitmapSubpixelPrefilter(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, oversample_x, oversample_y, sub_x, sub_y, stbtt_FindGlyphIndex(info,codepoint));
}
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint)
{
stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, stbtt_FindGlyphIndex(info,codepoint));
}
STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetCodepointBitmapSubpixel(info, scale_x, scale_y, 0.0f,0.0f, codepoint, width,height,xoff,yoff);
}
STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint)
{
stbtt_MakeCodepointBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, codepoint);
}
//////////////////////////////////////////////////////////////////////////////
//
// bitmap baking
//
// This is SUPER-CRAPPY packing to keep source code small
static int stbtt_BakeFontBitmap_internal(unsigned char *data, int offset, // font location (use offset=0 for plain .ttf)
float pixel_height, // height of font in pixels
unsigned char *pixels, int pw, int ph, // bitmap to be filled in
int first_char, int num_chars, // characters to bake
stbtt_bakedchar *chardata)
{
float scale;
int x,y,bottom_y, i;
stbtt_fontinfo f;
f.userdata = NULL;
if (!stbtt_InitFont(&f, data, offset))
return -1;
STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
x=y=1;
bottom_y = 1;
scale = stbtt_ScaleForPixelHeight(&f, pixel_height);
for (i=0; i < num_chars; ++i) {
int advance, lsb, x0,y0,x1,y1,gw,gh;
int g = stbtt_FindGlyphIndex(&f, first_char + i);
stbtt_GetGlyphHMetrics(&f, g, &advance, &lsb);
stbtt_GetGlyphBitmapBox(&f, g, scale,scale, &x0,&y0,&x1,&y1);
gw = x1-x0;
gh = y1-y0;
if (x + gw + 1 >= pw)
y = bottom_y, x = 1; // advance to next row
if (y + gh + 1 >= ph) // check if it fits vertically AFTER potentially moving to next row
return -i;
STBTT_assert(x+gw < pw);
STBTT_assert(y+gh < ph);
stbtt_MakeGlyphBitmap(&f, pixels+x+y*pw, gw,gh,pw, scale,scale, g);
chardata[i].x0 = (stbtt_int16) x;
chardata[i].y0 = (stbtt_int16) y;
chardata[i].x1 = (stbtt_int16) (x + gw);
chardata[i].y1 = (stbtt_int16) (y + gh);
chardata[i].xadvance = scale * advance;
chardata[i].xoff = (float) x0;
chardata[i].yoff = (float) y0;
x = x + gw + 1;
if (y+gh+1 > bottom_y)
bottom_y = y+gh+1;
}
return bottom_y;
}
STBTT_DEF void stbtt_GetBakedQuad(const stbtt_bakedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int opengl_fillrule)
{
float d3d_bias = opengl_fillrule ? 0 : -0.5f;
float ipw = 1.0f / pw, iph = 1.0f / ph;
const stbtt_bakedchar *b = chardata + char_index;
int round_x = STBTT_ifloor((*xpos + b->xoff) + 0.5f);
int round_y = STBTT_ifloor((*ypos + b->yoff) + 0.5f);
q->x0 = round_x + d3d_bias;
q->y0 = round_y + d3d_bias;
q->x1 = round_x + b->x1 - b->x0 + d3d_bias;
q->y1 = round_y + b->y1 - b->y0 + d3d_bias;
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
//////////////////////////////////////////////////////////////////////////////
//
// rectangle packing replacement routines if you don't have stb_rect_pack.h
//
#ifndef STB_RECT_PACK_VERSION
typedef int stbrp_coord;
////////////////////////////////////////////////////////////////////////////////////
// //
// //
// COMPILER WARNING ?!?!? //
// //
// //
// if you get a compile warning due to these symbols being defined more than //
// once, move #include "stb_rect_pack.h" before #include "stb_truetype.h" //
// //
////////////////////////////////////////////////////////////////////////////////////
typedef struct
{
int width,height;
int x,y,bottom_y;
} stbrp_context;
typedef struct
{
unsigned char x;
} stbrp_node;
struct stbrp_rect
{
stbrp_coord x,y;
int id,w,h,was_packed;
};
static void stbrp_init_target(stbrp_context *con, int pw, int ph, stbrp_node *nodes, int num_nodes)
{
con->width = pw;
con->height = ph;
con->x = 0;
con->y = 0;
con->bottom_y = 0;
STBTT__NOTUSED(nodes);
STBTT__NOTUSED(num_nodes);
}
static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
{
int i;
for (i=0; i < num_rects; ++i) {
if (con->x + rects[i].w > con->width) {
con->x = 0;
con->y = con->bottom_y;
}
if (con->y + rects[i].h > con->height)
break;
rects[i].x = con->x;
rects[i].y = con->y;
rects[i].was_packed = 1;
con->x += rects[i].w;
if (con->y + rects[i].h > con->bottom_y)
con->bottom_y = con->y + rects[i].h;
}
for ( ; i < num_rects; ++i)
rects[i].was_packed = 0;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//
// bitmap baking
//
// This is SUPER-AWESOME (tm Ryan Gordon) packing using stb_rect_pack.h. If
// stb_rect_pack.h isn't available, it uses the BakeFontBitmap strategy.
STBTT_DEF int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context)
{
stbrp_context *context = (stbrp_context *) STBTT_malloc(sizeof(*context) ,alloc_context);
int num_nodes = pw - padding;
stbrp_node *nodes = (stbrp_node *) STBTT_malloc(sizeof(*nodes ) * num_nodes,alloc_context);
if (context == NULL || nodes == NULL) {
if (context != NULL) STBTT_free(context, alloc_context);
if (nodes != NULL) STBTT_free(nodes , alloc_context);
return 0;
}
spc->user_allocator_context = alloc_context;
spc->width = pw;
spc->height = ph;
spc->pixels = pixels;
spc->pack_info = context;
spc->nodes = nodes;
spc->padding = padding;
spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
spc->h_oversample = 1;
spc->v_oversample = 1;
spc->skip_missing = 0;
stbrp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
if (pixels)
STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
return 1;
}
STBTT_DEF void stbtt_PackEnd (stbtt_pack_context *spc)
{
STBTT_free(spc->nodes , spc->user_allocator_context);
STBTT_free(spc->pack_info, spc->user_allocator_context);
}
STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample)
{
STBTT_assert(h_oversample <= STBTT_MAX_OVERSAMPLE);
STBTT_assert(v_oversample <= STBTT_MAX_OVERSAMPLE);
if (h_oversample <= STBTT_MAX_OVERSAMPLE)
spc->h_oversample = h_oversample;
if (v_oversample <= STBTT_MAX_OVERSAMPLE)
spc->v_oversample = v_oversample;
}
STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip)
{
spc->skip_missing = skip;
}
#define STBTT__OVER_MASK (STBTT_MAX_OVERSAMPLE-1)
static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
{
unsigned char buffer[STBTT_MAX_OVERSAMPLE];
int safe_w = w - kernel_width;
int j;
STBTT_memset(buffer, 0, STBTT_MAX_OVERSAMPLE); // suppress bogus warning from VS2013 -analyze
for (j=0; j < h; ++j) {
int i;
unsigned int total;
STBTT_memset(buffer, 0, kernel_width);
total = 0;
// make kernel_width a constant in common cases so compiler can optimize out the divide
switch (kernel_width) {
case 2:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 2);
}
break;
case 3:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 3);
}
break;
case 4:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 4);
}
break;
case 5:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 5);
}
break;
default:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / kernel_width);
}
break;
}
for (; i < w; ++i) {
STBTT_assert(pixels[i] == 0);
total -= buffer[i & STBTT__OVER_MASK];
pixels[i] = (unsigned char) (total / kernel_width);
}
pixels += stride_in_bytes;
}
}
static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
{
unsigned char buffer[STBTT_MAX_OVERSAMPLE];
int safe_h = h - kernel_width;
int j;
STBTT_memset(buffer, 0, STBTT_MAX_OVERSAMPLE); // suppress bogus warning from VS2013 -analyze
for (j=0; j < w; ++j) {
int i;
unsigned int total;
STBTT_memset(buffer, 0, kernel_width);
total = 0;
// make kernel_width a constant in common cases so compiler can optimize out the divide
switch (kernel_width) {
case 2:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 2);
}
break;
case 3:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 3);
}
break;
case 4:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 4);
}
break;
case 5:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 5);
}
break;
default:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
}
break;
}
for (; i < h; ++i) {
STBTT_assert(pixels[i*stride_in_bytes] == 0);
total -= buffer[i & STBTT__OVER_MASK];
pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
}
pixels += 1;
}
}
static float stbtt__oversample_shift(int oversample)
{
if (!oversample)
return 0.0f;
// The prefilter is a box filter of width "oversample",
// which shifts phase by (oversample - 1)/2 pixels in
// oversampled space. We want to shift in the opposite
// direction to counter this.
return (float)-(oversample - 1) / (2.0f * (float)oversample);
}
// rects array must be big enough to accommodate all characters in the given ranges
STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
{
int i,j,k;
int missing_glyph_added = 0;
k=0;
for (i=0; i < num_ranges; ++i) {
float fh = ranges[i].font_size;
float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
ranges[i].h_oversample = (unsigned char) spc->h_oversample;
ranges[i].v_oversample = (unsigned char) spc->v_oversample;
for (j=0; j < ranges[i].num_chars; ++j) {
int x0,y0,x1,y1;
int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
int glyph = stbtt_FindGlyphIndex(info, codepoint);
if (glyph == 0 && (spc->skip_missing || missing_glyph_added)) {
rects[k].w = rects[k].h = 0;
} else {
stbtt_GetGlyphBitmapBoxSubpixel(info,glyph,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
&x0,&y0,&x1,&y1);
rects[k].w = (stbrp_coord) (x1-x0 + spc->padding + spc->h_oversample-1);
rects[k].h = (stbrp_coord) (y1-y0 + spc->padding + spc->v_oversample-1);
if (glyph == 0)
missing_glyph_added = 1;
}
++k;
}
}
return k;
}
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int prefilter_x, int prefilter_y, float *sub_x, float *sub_y, int glyph)
{
stbtt_MakeGlyphBitmapSubpixel(info,
output,
out_w - (prefilter_x - 1),
out_h - (prefilter_y - 1),
out_stride,
scale_x,
scale_y,
shift_x,
shift_y,
glyph);
if (prefilter_x > 1)
stbtt__h_prefilter(output, out_w, out_h, out_stride, prefilter_x);
if (prefilter_y > 1)
stbtt__v_prefilter(output, out_w, out_h, out_stride, prefilter_y);
*sub_x = stbtt__oversample_shift(prefilter_x);
*sub_y = stbtt__oversample_shift(prefilter_y);
}
// rects array must be big enough to accommodate all characters in the given ranges
STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
{
int i,j,k, missing_glyph = -1, return_value = 1;
// save current values
int old_h_over = spc->h_oversample;
int old_v_over = spc->v_oversample;
k = 0;
for (i=0; i < num_ranges; ++i) {
float fh = ranges[i].font_size;
float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
float recip_h,recip_v,sub_x,sub_y;
spc->h_oversample = ranges[i].h_oversample;
spc->v_oversample = ranges[i].v_oversample;
recip_h = 1.0f / spc->h_oversample;
recip_v = 1.0f / spc->v_oversample;
sub_x = stbtt__oversample_shift(spc->h_oversample);
sub_y = stbtt__oversample_shift(spc->v_oversample);
for (j=0; j < ranges[i].num_chars; ++j) {
stbrp_rect *r = &rects[k];
if (r->was_packed && r->w != 0 && r->h != 0) {
stbtt_packedchar *bc = &ranges[i].chardata_for_range[j];
int advance, lsb, x0,y0,x1,y1;
int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
int glyph = stbtt_FindGlyphIndex(info, codepoint);
stbrp_coord pad = (stbrp_coord) spc->padding;
// pad on left and top
r->x += pad;
r->y += pad;
r->w -= pad;
r->h -= pad;
stbtt_GetGlyphHMetrics(info, glyph, &advance, &lsb);
stbtt_GetGlyphBitmapBox(info, glyph,
scale * spc->h_oversample,
scale * spc->v_oversample,
&x0,&y0,&x1,&y1);
stbtt_MakeGlyphBitmapSubpixel(info,
spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w - spc->h_oversample+1,
r->h - spc->v_oversample+1,
spc->stride_in_bytes,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
glyph);
if (spc->h_oversample > 1)
stbtt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w, r->h, spc->stride_in_bytes,
spc->h_oversample);
if (spc->v_oversample > 1)
stbtt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w, r->h, spc->stride_in_bytes,
spc->v_oversample);
bc->x0 = (stbtt_int16) r->x;
bc->y0 = (stbtt_int16) r->y;
bc->x1 = (stbtt_int16) (r->x + r->w);
bc->y1 = (stbtt_int16) (r->y + r->h);
bc->xadvance = scale * advance;
bc->xoff = (float) x0 * recip_h + sub_x;
bc->yoff = (float) y0 * recip_v + sub_y;
bc->xoff2 = (x0 + r->w) * recip_h + sub_x;
bc->yoff2 = (y0 + r->h) * recip_v + sub_y;
if (glyph == 0)
missing_glyph = j;
} else if (spc->skip_missing) {
return_value = 0;
} else if (r->was_packed && r->w == 0 && r->h == 0 && missing_glyph >= 0) {
ranges[i].chardata_for_range[j] = ranges[i].chardata_for_range[missing_glyph];
} else {
return_value = 0; // if any fail, report failure
}
++k;
}
}
// restore original values
spc->h_oversample = old_h_over;
spc->v_oversample = old_v_over;
return return_value;
}
STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects)
{
stbrp_pack_rects((stbrp_context *) spc->pack_info, rects, num_rects);
}
STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
{
stbtt_fontinfo info;
int i, j, n, return_value; // [DEAR IMGUI] removed = 1;
//stbrp_context *context = (stbrp_context *) spc->pack_info;
stbrp_rect *rects;
// flag all characters as NOT packed
for (i=0; i < num_ranges; ++i)
for (j=0; j < ranges[i].num_chars; ++j)
ranges[i].chardata_for_range[j].x0 =
ranges[i].chardata_for_range[j].y0 =
ranges[i].chardata_for_range[j].x1 =
ranges[i].chardata_for_range[j].y1 = 0;
n = 0;
for (i=0; i < num_ranges; ++i)
n += ranges[i].num_chars;
rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
if (rects == NULL)
return 0;
info.userdata = spc->user_allocator_context;
stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata,font_index));
n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
stbtt_PackFontRangesPackRects(spc, rects, n);
return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
STBTT_free(rects, spc->user_allocator_context);
return return_value;
}
STBTT_DEF int stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
int first_unicode_codepoint_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range)
{
stbtt_pack_range range;
range.first_unicode_codepoint_in_range = first_unicode_codepoint_in_range;
range.array_of_unicode_codepoints = NULL;
range.num_chars = num_chars_in_range;
range.chardata_for_range = chardata_for_range;
range.font_size = font_size;
return stbtt_PackFontRanges(spc, fontdata, font_index, &range, 1);
}
STBTT_DEF void stbtt_GetScaledFontVMetrics(const unsigned char *fontdata, int index, float size, float *ascent, float *descent, float *lineGap)
{
int i_ascent, i_descent, i_lineGap;
float scale;
stbtt_fontinfo info;
stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata, index));
scale = size > 0 ? stbtt_ScaleForPixelHeight(&info, size) : stbtt_ScaleForMappingEmToPixels(&info, -size);
stbtt_GetFontVMetrics(&info, &i_ascent, &i_descent, &i_lineGap);
*ascent = (float) i_ascent * scale;
*descent = (float) i_descent * scale;
*lineGap = (float) i_lineGap * scale;
}
STBTT_DEF void stbtt_GetPackedQuad(const stbtt_packedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int align_to_integer)
{
float ipw = 1.0f / pw, iph = 1.0f / ph;
const stbtt_packedchar *b = chardata + char_index;
if (align_to_integer) {
float x = (float) STBTT_ifloor((*xpos + b->xoff) + 0.5f);
float y = (float) STBTT_ifloor((*ypos + b->yoff) + 0.5f);
q->x0 = x;
q->y0 = y;
q->x1 = x + b->xoff2 - b->xoff;
q->y1 = y + b->yoff2 - b->yoff;
} else {
q->x0 = *xpos + b->xoff;
q->y0 = *ypos + b->yoff;
q->x1 = *xpos + b->xoff2;
q->y1 = *ypos + b->yoff2;
}
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
//////////////////////////////////////////////////////////////////////////////
//
// sdf computation
//
#define STBTT_min(a,b) ((a) < (b) ? (a) : (b))
#define STBTT_max(a,b) ((a) < (b) ? (b) : (a))
static int stbtt__ray_intersect_bezier(float orig[2], float ray[2], float q0[2], float q1[2], float q2[2], float hits[2][2])
{
float q0perp = q0[1]*ray[0] - q0[0]*ray[1];
float q1perp = q1[1]*ray[0] - q1[0]*ray[1];
float q2perp = q2[1]*ray[0] - q2[0]*ray[1];
float roperp = orig[1]*ray[0] - orig[0]*ray[1];
float a = q0perp - 2*q1perp + q2perp;
float b = q1perp - q0perp;
float c = q0perp - roperp;
float s0 = 0., s1 = 0.;
int num_s = 0;
if (a != 0.0) {
float discr = b*b - a*c;
if (discr > 0.0) {
float rcpna = -1 / a;
float d = (float) STBTT_sqrt(discr);
s0 = (b+d) * rcpna;
s1 = (b-d) * rcpna;
if (s0 >= 0.0 && s0 <= 1.0)
num_s = 1;
if (d > 0.0 && s1 >= 0.0 && s1 <= 1.0) {
if (num_s == 0) s0 = s1;
++num_s;
}
}
} else {
// 2*b*s + c = 0
// s = -c / (2*b)
s0 = c / (-2 * b);
if (s0 >= 0.0 && s0 <= 1.0)
num_s = 1;
}
if (num_s == 0)
return 0;
else {
float rcp_len2 = 1 / (ray[0]*ray[0] + ray[1]*ray[1]);
float rayn_x = ray[0] * rcp_len2, rayn_y = ray[1] * rcp_len2;
float q0d = q0[0]*rayn_x + q0[1]*rayn_y;
float q1d = q1[0]*rayn_x + q1[1]*rayn_y;
float q2d = q2[0]*rayn_x + q2[1]*rayn_y;
float rod = orig[0]*rayn_x + orig[1]*rayn_y;
float q10d = q1d - q0d;
float q20d = q2d - q0d;
float q0rd = q0d - rod;
hits[0][0] = q0rd + s0*(2.0f - 2.0f*s0)*q10d + s0*s0*q20d;
hits[0][1] = a*s0+b;
if (num_s > 1) {
hits[1][0] = q0rd + s1*(2.0f - 2.0f*s1)*q10d + s1*s1*q20d;
hits[1][1] = a*s1+b;
return 2;
} else {
return 1;
}
}
}
static int equal(float *a, float *b)
{
return (a[0] == b[0] && a[1] == b[1]);
}
static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex *verts)
{
int i;
float orig[2], ray[2] = { 1, 0 };
float y_frac;
int winding = 0;
// make sure y never passes through a vertex of the shape
y_frac = (float) STBTT_fmod(y, 1.0f);
if (y_frac < 0.01f)
y += 0.01f;
else if (y_frac > 0.99f)
y -= 0.01f;
orig[0] = x;
orig[1] = y;
// test a ray from (-infinity,y) to (x,y)
for (i=0; i < nverts; ++i) {
if (verts[i].type == STBTT_vline) {
int x0 = (int) verts[i-1].x, y0 = (int) verts[i-1].y;
int x1 = (int) verts[i ].x, y1 = (int) verts[i ].y;
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
if (x_inter < x)
winding += (y0 < y1) ? 1 : -1;
}
}
if (verts[i].type == STBTT_vcurve) {
int x0 = (int) verts[i-1].x , y0 = (int) verts[i-1].y ;
int x1 = (int) verts[i ].cx, y1 = (int) verts[i ].cy;
int x2 = (int) verts[i ].x , y2 = (int) verts[i ].y ;
int ax = STBTT_min(x0,STBTT_min(x1,x2)), ay = STBTT_min(y0,STBTT_min(y1,y2));
int by = STBTT_max(y0,STBTT_max(y1,y2));
if (y > ay && y < by && x > ax) {
float q0[2],q1[2],q2[2];
float hits[2][2];
q0[0] = (float)x0;
q0[1] = (float)y0;
q1[0] = (float)x1;
q1[1] = (float)y1;
q2[0] = (float)x2;
q2[1] = (float)y2;
if (equal(q0,q1) || equal(q1,q2)) {
x0 = (int)verts[i-1].x;
y0 = (int)verts[i-1].y;
x1 = (int)verts[i ].x;
y1 = (int)verts[i ].y;
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
if (x_inter < x)
winding += (y0 < y1) ? 1 : -1;
}
} else {
int num_hits = stbtt__ray_intersect_bezier(orig, ray, q0, q1, q2, hits);
if (num_hits >= 1)
if (hits[0][0] < 0)
winding += (hits[0][1] < 0 ? -1 : 1);
if (num_hits >= 2)
if (hits[1][0] < 0)
winding += (hits[1][1] < 0 ? -1 : 1);
}
}
}
}
return winding;
}
static float stbtt__cuberoot( float x )
{
if (x<0)
return -(float) STBTT_pow(-x,1.0f/3.0f);
else
return (float) STBTT_pow( x,1.0f/3.0f);
}
// x^3 + a*x^2 + b*x + c = 0
static int stbtt__solve_cubic(float a, float b, float c, float* r)
{
float s = -a / 3;
float p = b - a*a / 3;
float q = a * (2*a*a - 9*b) / 27 + c;
float p3 = p*p*p;
float d = q*q + 4*p3 / 27;
if (d >= 0) {
float z = (float) STBTT_sqrt(d);
float u = (-q + z) / 2;
float v = (-q - z) / 2;
u = stbtt__cuberoot(u);
v = stbtt__cuberoot(v);
r[0] = s + u + v;
return 1;
} else {
float u = (float) STBTT_sqrt(-p/3);
float v = (float) STBTT_acos(-STBTT_sqrt(-27/p3) * q / 2) / 3; // p3 must be negative, since d is negative
float m = (float) STBTT_cos(v);
float n = (float) STBTT_cos(v-3.141592/2)*1.732050808f;
r[0] = s + u * 2 * m;
r[1] = s - u * (m + n);
r[2] = s - u * (m - n);
//STBTT_assert( STBTT_fabs(((r[0]+a)*r[0]+b)*r[0]+c) < 0.05f); // these asserts may not be safe at all scales, though they're in bezier t parameter units so maybe?
//STBTT_assert( STBTT_fabs(((r[1]+a)*r[1]+b)*r[1]+c) < 0.05f);
//STBTT_assert( STBTT_fabs(((r[2]+a)*r[2]+b)*r[2]+c) < 0.05f);
return 3;
}
}
STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float scale, int glyph, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
{
float scale_x = scale, scale_y = scale;
int ix0,iy0,ix1,iy1;
int w,h;
unsigned char *data;
if (scale == 0) return NULL;
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale, scale, 0.0f,0.0f, &ix0,&iy0,&ix1,&iy1);
// if empty, return NULL
if (ix0 == ix1 || iy0 == iy1)
return NULL;
ix0 -= padding;
iy0 -= padding;
ix1 += padding;
iy1 += padding;
w = (ix1 - ix0);
h = (iy1 - iy0);
if (width ) *width = w;
if (height) *height = h;
if (xoff ) *xoff = ix0;
if (yoff ) *yoff = iy0;
// invert for y-downwards bitmaps
scale_y = -scale_y;
{
int x,y,i,j;
float *precompute;
stbtt_vertex *verts;
int num_verts = stbtt_GetGlyphShape(info, glyph, &verts);
data = (unsigned char *) STBTT_malloc(w * h, info->userdata);
precompute = (float *) STBTT_malloc(num_verts * sizeof(float), info->userdata);
for (i=0,j=num_verts-1; i < num_verts; j=i++) {
if (verts[i].type == STBTT_vline) {
float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
float x1 = verts[j].x*scale_x, y1 = verts[j].y*scale_y;
float dist = (float) STBTT_sqrt((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0));
precompute[i] = (dist == 0) ? 0.0f : 1.0f / dist;
} else if (verts[i].type == STBTT_vcurve) {
float x2 = verts[j].x *scale_x, y2 = verts[j].y *scale_y;
float x1 = verts[i].cx*scale_x, y1 = verts[i].cy*scale_y;
float x0 = verts[i].x *scale_x, y0 = verts[i].y *scale_y;
float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
float len2 = bx*bx + by*by;
if (len2 != 0.0f)
precompute[i] = 1.0f / (bx*bx + by*by);
else
precompute[i] = 0.0f;
} else
precompute[i] = 0.0f;
}
for (y=iy0; y < iy1; ++y) {
for (x=ix0; x < ix1; ++x) {
float val;
float min_dist = 999999.0f;
float sx = (float) x + 0.5f;
float sy = (float) y + 0.5f;
float x_gspace = (sx / scale_x);
float y_gspace = (sy / scale_y);
int winding = stbtt__compute_crossings_x(x_gspace, y_gspace, num_verts, verts); // @OPTIMIZE: this could just be a rasterization, but needs to be line vs. non-tesselated curves so a new path
for (i=0; i < num_verts; ++i) {
float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
if (verts[i].type == STBTT_vline && precompute[i] != 0.0f) {
float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
float dist,dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
if (dist2 < min_dist*min_dist)
min_dist = (float) STBTT_sqrt(dist2);
// coarse culling against bbox
//if (sx > STBTT_min(x0,x1)-min_dist && sx < STBTT_max(x0,x1)+min_dist &&
// sy > STBTT_min(y0,y1)-min_dist && sy < STBTT_max(y0,y1)+min_dist)
dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
STBTT_assert(i != 0);
if (dist < min_dist) {
// check position along line
// x' = x0 + t*(x1-x0), y' = y0 + t*(y1-y0)
// minimize (x'-sx)*(x'-sx)+(y'-sy)*(y'-sy)
float dx = x1-x0, dy = y1-y0;
float px = x0-sx, py = y0-sy;
// minimize (px+t*dx)^2 + (py+t*dy)^2 = px*px + 2*px*dx*t + t^2*dx*dx + py*py + 2*py*dy*t + t^2*dy*dy
// derivative: 2*px*dx + 2*py*dy + (2*dx*dx+2*dy*dy)*t, set to 0 and solve
float t = -(px*dx + py*dy) / (dx*dx + dy*dy);
if (t >= 0.0f && t <= 1.0f)
min_dist = dist;
}
} else if (verts[i].type == STBTT_vcurve) {
float x2 = verts[i-1].x *scale_x, y2 = verts[i-1].y *scale_y;
float x1 = verts[i ].cx*scale_x, y1 = verts[i ].cy*scale_y;
float box_x0 = STBTT_min(STBTT_min(x0,x1),x2);
float box_y0 = STBTT_min(STBTT_min(y0,y1),y2);
float box_x1 = STBTT_max(STBTT_max(x0,x1),x2);
float box_y1 = STBTT_max(STBTT_max(y0,y1),y2);
// coarse culling against bbox to avoid computing cubic unnecessarily
if (sx > box_x0-min_dist && sx < box_x1+min_dist && sy > box_y0-min_dist && sy < box_y1+min_dist) {
int num=0;
float ax = x1-x0, ay = y1-y0;
float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
float mx = x0 - sx, my = y0 - sy;
float res[3] = {0.f,0.f,0.f};
float px,py,t,it,dist2;
float a_inv = precompute[i];
if (a_inv == 0.0) { // if a_inv is 0, it's 2nd degree so use quadratic formula
float a = 3*(ax*bx + ay*by);
float b = 2*(ax*ax + ay*ay) + (mx*bx+my*by);
float c = mx*ax+my*ay;
if (a == 0.0) { // if a is 0, it's linear
if (b != 0.0) {
res[num++] = -c/b;
}
} else {
float discriminant = b*b - 4*a*c;
if (discriminant < 0)
num = 0;
else {
float root = (float) STBTT_sqrt(discriminant);
res[0] = (-b - root)/(2*a);
res[1] = (-b + root)/(2*a);
num = 2; // don't bother distinguishing 1-solution case, as code below will still work
}
}
} else {
float b = 3*(ax*bx + ay*by) * a_inv; // could precompute this as it doesn't depend on sample point
float c = (2*(ax*ax + ay*ay) + (mx*bx+my*by)) * a_inv;
float d = (mx*ax+my*ay) * a_inv;
num = stbtt__solve_cubic(b, c, d, res);
}
dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
if (dist2 < min_dist*min_dist)
min_dist = (float) STBTT_sqrt(dist2);
if (num >= 1 && res[0] >= 0.0f && res[0] <= 1.0f) {
t = res[0], it = 1.0f - t;
px = it*it*x0 + 2*t*it*x1 + t*t*x2;
py = it*it*y0 + 2*t*it*y1 + t*t*y2;
dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
if (dist2 < min_dist * min_dist)
min_dist = (float) STBTT_sqrt(dist2);
}
if (num >= 2 && res[1] >= 0.0f && res[1] <= 1.0f) {
t = res[1], it = 1.0f - t;
px = it*it*x0 + 2*t*it*x1 + t*t*x2;
py = it*it*y0 + 2*t*it*y1 + t*t*y2;
dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
if (dist2 < min_dist * min_dist)
min_dist = (float) STBTT_sqrt(dist2);
}
if (num >= 3 && res[2] >= 0.0f && res[2] <= 1.0f) {
t = res[2], it = 1.0f - t;
px = it*it*x0 + 2*t*it*x1 + t*t*x2;
py = it*it*y0 + 2*t*it*y1 + t*t*y2;
dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
if (dist2 < min_dist * min_dist)
min_dist = (float) STBTT_sqrt(dist2);
}
}
}
}
if (winding == 0)
min_dist = -min_dist; // if outside the shape, value is negative
val = onedge_value + pixel_dist_scale * min_dist;
if (val < 0)
val = 0;
else if (val > 255)
val = 255;
data[(y-iy0)*w+(x-ix0)] = (unsigned char) val;
}
}
STBTT_free(precompute, info->userdata);
STBTT_free(verts, info->userdata);
}
return data;
}
STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetGlyphSDF(info, scale, stbtt_FindGlyphIndex(info, codepoint), padding, onedge_value, pixel_dist_scale, width, height, xoff, yoff);
}
STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata)
{
STBTT_free(bitmap, userdata);
}
//////////////////////////////////////////////////////////////////////////////
//
// font name matching -- recommended not to use this
//
// check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string
static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(stbtt_uint8 *s1, stbtt_int32 len1, stbtt_uint8 *s2, stbtt_int32 len2)
{
stbtt_int32 i=0;
// convert utf16 to utf8 and compare the results while converting
while (len2) {
stbtt_uint16 ch = s2[0]*256 + s2[1];
if (ch < 0x80) {
if (i >= len1) return -1;
if (s1[i++] != ch) return -1;
} else if (ch < 0x800) {
if (i+1 >= len1) return -1;
if (s1[i++] != 0xc0 + (ch >> 6)) return -1;
if (s1[i++] != 0x80 + (ch & 0x3f)) return -1;
} else if (ch >= 0xd800 && ch < 0xdc00) {
stbtt_uint32 c;
stbtt_uint16 ch2 = s2[2]*256 + s2[3];
if (i+3 >= len1) return -1;
c = ((ch - 0xd800) << 10) + (ch2 - 0xdc00) + 0x10000;
if (s1[i++] != 0xf0 + (c >> 18)) return -1;
if (s1[i++] != 0x80 + ((c >> 12) & 0x3f)) return -1;
if (s1[i++] != 0x80 + ((c >> 6) & 0x3f)) return -1;
if (s1[i++] != 0x80 + ((c ) & 0x3f)) return -1;
s2 += 2; // plus another 2 below
len2 -= 2;
} else if (ch >= 0xdc00 && ch < 0xe000) {
return -1;
} else {
if (i+2 >= len1) return -1;
if (s1[i++] != 0xe0 + (ch >> 12)) return -1;
if (s1[i++] != 0x80 + ((ch >> 6) & 0x3f)) return -1;
if (s1[i++] != 0x80 + ((ch ) & 0x3f)) return -1;
}
s2 += 2;
len2 -= 2;
}
return i;
}
static int stbtt_CompareUTF8toUTF16_bigendian_internal(char *s1, int len1, char *s2, int len2)
{
return len1 == stbtt__CompareUTF8toUTF16_bigendian_prefix((stbtt_uint8*) s1, len1, (stbtt_uint8*) s2, len2);
}
// returns results in whatever encoding you request... but note that 2-byte encodings
// will be BIG-ENDIAN... use stbtt_CompareUTF8toUTF16_bigendian() to compare
STBTT_DEF const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID)
{
stbtt_int32 i,count,stringOffset;
stbtt_uint8 *fc = font->data;
stbtt_uint32 offset = font->fontstart;
stbtt_uint32 nm = stbtt__find_table(fc, offset, "name");
if (!nm) return NULL;
count = ttUSHORT(fc+nm+2);
stringOffset = nm + ttUSHORT(fc+nm+4);
for (i=0; i < count; ++i) {
stbtt_uint32 loc = nm + 6 + 12 * i;
if (platformID == ttUSHORT(fc+loc+0) && encodingID == ttUSHORT(fc+loc+2)
&& languageID == ttUSHORT(fc+loc+4) && nameID == ttUSHORT(fc+loc+6)) {
*length = ttUSHORT(fc+loc+8);
return (const char *) (fc+stringOffset+ttUSHORT(fc+loc+10));
}
}
return NULL;
}
static int stbtt__matchpair(stbtt_uint8 *fc, stbtt_uint32 nm, stbtt_uint8 *name, stbtt_int32 nlen, stbtt_int32 target_id, stbtt_int32 next_id)
{
stbtt_int32 i;
stbtt_int32 count = ttUSHORT(fc+nm+2);
stbtt_int32 stringOffset = nm + ttUSHORT(fc+nm+4);
for (i=0; i < count; ++i) {
stbtt_uint32 loc = nm + 6 + 12 * i;
stbtt_int32 id = ttUSHORT(fc+loc+6);
if (id == target_id) {
// find the encoding
stbtt_int32 platform = ttUSHORT(fc+loc+0), encoding = ttUSHORT(fc+loc+2), language = ttUSHORT(fc+loc+4);
// is this a Unicode encoding?
if (platform == 0 || (platform == 3 && encoding == 1) || (platform == 3 && encoding == 10)) {
stbtt_int32 slen = ttUSHORT(fc+loc+8);
stbtt_int32 off = ttUSHORT(fc+loc+10);
// check if there's a prefix match
stbtt_int32 matchlen = stbtt__CompareUTF8toUTF16_bigendian_prefix(name, nlen, fc+stringOffset+off,slen);
if (matchlen >= 0) {
// check for target_id+1 immediately following, with same encoding & language
if (i+1 < count && ttUSHORT(fc+loc+12+6) == next_id && ttUSHORT(fc+loc+12) == platform && ttUSHORT(fc+loc+12+2) == encoding && ttUSHORT(fc+loc+12+4) == language) {
slen = ttUSHORT(fc+loc+12+8);
off = ttUSHORT(fc+loc+12+10);
if (slen == 0) {
if (matchlen == nlen)
return 1;
} else if (matchlen < nlen && name[matchlen] == ' ') {
++matchlen;
if (stbtt_CompareUTF8toUTF16_bigendian_internal((char*) (name+matchlen), nlen-matchlen, (char*)(fc+stringOffset+off),slen))
return 1;
}
} else {
// if nothing immediately following
if (matchlen == nlen)
return 1;
}
}
}
// @TODO handle other encodings
}
}
return 0;
}
static int stbtt__matches(stbtt_uint8 *fc, stbtt_uint32 offset, stbtt_uint8 *name, stbtt_int32 flags)
{
stbtt_int32 nlen = (stbtt_int32) STBTT_strlen((char *) name);
stbtt_uint32 nm,hd;
if (!stbtt__isfont(fc+offset)) return 0;
// check italics/bold/underline flags in macStyle...
if (flags) {
hd = stbtt__find_table(fc, offset, "head");
if ((ttUSHORT(fc+hd+44) & 7) != (flags & 7)) return 0;
}
nm = stbtt__find_table(fc, offset, "name");
if (!nm) return 0;
if (flags) {
// if we checked the macStyle flags, then just check the family and ignore the subfamily
if (stbtt__matchpair(fc, nm, name, nlen, 16, -1)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 1, -1)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 3, -1)) return 1;
} else {
if (stbtt__matchpair(fc, nm, name, nlen, 16, 17)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 1, 2)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 3, -1)) return 1;
}
return 0;
}
static int stbtt_FindMatchingFont_internal(unsigned char *font_collection, char *name_utf8, stbtt_int32 flags)
{
stbtt_int32 i;
for (i=0;;++i) {
stbtt_int32 off = stbtt_GetFontOffsetForIndex(font_collection, i);
if (off < 0) return off;
if (stbtt__matches((stbtt_uint8 *) font_collection, off, (stbtt_uint8*) name_utf8, flags))
return off;
}
}
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif
STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset,
float pixel_height, unsigned char *pixels, int pw, int ph,
int first_char, int num_chars, stbtt_bakedchar *chardata)
{
return stbtt_BakeFontBitmap_internal((unsigned char *) data, offset, pixel_height, pixels, pw, ph, first_char, num_chars, chardata);
}
STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index)
{
return stbtt_GetFontOffsetForIndex_internal((unsigned char *) data, index);
}
STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data)
{
return stbtt_GetNumberOfFonts_internal((unsigned char *) data);
}
STBTT_DEF int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset)
{
return stbtt_InitFont_internal(info, (unsigned char *) data, offset);
}
STBTT_DEF int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags)
{
return stbtt_FindMatchingFont_internal((unsigned char *) fontdata, (char *) name, flags);
}
STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2)
{
return stbtt_CompareUTF8toUTF16_bigendian_internal((char *) s1, len1, (char *) s2, len2);
}
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
#endif // STB_TRUETYPE_IMPLEMENTATION
// FULL VERSION HISTORY
//
// 1.25 (2021-07-11) many fixes
// 1.24 (2020-02-05) fix warning
// 1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
// 1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
// 1.21 (2019-02-25) fix warning
// 1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
// 1.19 (2018-02-11) OpenType GPOS kerning (horizontal only), STBTT_fmod
// 1.18 (2018-01-29) add missing function
// 1.17 (2017-07-23) make more arguments const; doc fix
// 1.16 (2017-07-12) SDF support
// 1.15 (2017-03-03) make more arguments const
// 1.14 (2017-01-16) num-fonts-in-TTC function
// 1.13 (2017-01-02) support OpenType fonts, certain Apple fonts
// 1.12 (2016-10-25) suppress warnings about casting away const with -Wcast-qual
// 1.11 (2016-04-02) fix unused-variable warning
// 1.10 (2016-04-02) allow user-defined fabs() replacement
// fix memory leak if fontsize=0.0
// fix warning from duplicate typedef
// 1.09 (2016-01-16) warning fix; avoid crash on outofmem; use alloc userdata for PackFontRanges
// 1.08 (2015-09-13) document stbtt_Rasterize(); fixes for vertical & horizontal edges
// 1.07 (2015-08-01) allow PackFontRanges to accept arrays of sparse codepoints;
// allow PackFontRanges to pack and render in separate phases;
// fix stbtt_GetFontOFfsetForIndex (never worked for non-0 input?);
// fixed an assert() bug in the new rasterizer
// replace assert() with STBTT_assert() in new rasterizer
// 1.06 (2015-07-14) performance improvements (~35% faster on x86 and x64 on test machine)
// also more precise AA rasterizer, except if shapes overlap
// remove need for STBTT_sort
// 1.05 (2015-04-15) fix misplaced definitions for STBTT_STATIC
// 1.04 (2015-04-15) typo in example
// 1.03 (2015-04-12) STBTT_STATIC, fix memory leak in new packing, various fixes
// 1.02 (2014-12-10) fix various warnings & compile issues w/ stb_rect_pack, C++
// 1.01 (2014-12-08) fix subpixel position when oversampling to exactly match
// non-oversampled; STBTT_POINT_SIZE for packed case only
// 1.00 (2014-12-06) add new PackBegin etc. API, w/ support for oversampling
// 0.99 (2014-09-18) fix multiple bugs with subpixel rendering (ryg)
// 0.9 (2014-08-07) support certain mac/iOS fonts without an MS platformID
// 0.8b (2014-07-07) fix a warning
// 0.8 (2014-05-25) fix a few more warnings
// 0.7 (2013-09-25) bugfix: subpixel glyph bug fixed in 0.5 had come back
// 0.6c (2012-07-24) improve documentation
// 0.6b (2012-07-20) fix a few more warnings
// 0.6 (2012-07-17) fix warnings; added stbtt_ScaleForMappingEmToPixels,
// stbtt_GetFontBoundingBox, stbtt_IsGlyphEmpty
// 0.5 (2011-12-09) bugfixes:
// subpixel glyph renderer computed wrong bounding box
// first vertex of shape can be off-curve (FreeSans)
// 0.4b (2011-12-03) fixed an error in the font baking example
// 0.4 (2011-12-01) kerning, subpixel rendering (tor)
// bugfixes for:
// codepoint-to-glyph conversion using table fmt=12
// codepoint-to-glyph conversion using table fmt=4
// stbtt_GetBakedQuad with non-square texture (Zer)
// updated Hello World! sample to use kerning and subpixel
// fixed some warnings
// 0.3 (2009-06-24) cmap fmt=12, compound shapes (MM)
// userdata, malloc-from-userdata, non-zero fill (stb)
// 0.2 (2009-03-11) Fix unsigned/signed char warnings
// 0.1 (2009-03-09) First public release
//
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui_demo.cpp | // dear imgui, v1.89.4
// (demo code)
// Help:
// - Read FAQ at http://dearimgui.org/faq
// - Newcomers, read 'Programmer guide' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
// Read imgui.cpp for more details, documentation and comments.
// Get the latest version at https://github.com/ocornut/imgui
// -------------------------------------------------
// PLEASE DO NOT REMOVE THIS FILE FROM YOUR PROJECT!
// -------------------------------------------------
// Message to the person tempted to delete this file when integrating Dear ImGui into their codebase:
// Think again! It is the most useful reference code that you and other coders will want to refer to and call.
// Have the ImGui::ShowDemoWindow() function wired in an always-available debug menu of your game/app!
// Also include Metrics! ItemPicker! DebugLog! and other debug features.
// Removing this file from your project is hindering access to documentation for everyone in your team,
// likely leading you to poorer usage of the library.
// Everything in this file will be stripped out by the linker if you don't call ImGui::ShowDemoWindow().
// If you want to link core Dear ImGui in your shipped builds but want a thorough guarantee that the demo will not be
// linked, you can setup your imconfig.h with #define IMGUI_DISABLE_DEMO_WINDOWS and those functions will be empty.
// In another situation, whenever you have Dear ImGui available you probably want this to be available for reference.
// Thank you,
// -Your beloved friend, imgui_demo.cpp (which you won't delete)
// Message to beginner C/C++ programmers about the meaning of the 'static' keyword:
// In this demo code, we frequently use 'static' variables inside functions. A static variable persists across calls,
// so it is essentially like a global variable but declared inside the scope of the function. We do this as a way to
// gather code and data in the same place, to make the demo source code faster to read, faster to write, and smaller
// in size. It also happens to be a convenient way of storing simple UI related information as long as your function
// doesn't need to be reentrant or used in multiple threads. This might be a pattern you will want to use in your code,
// but most of the real data you would be editing is likely going to be stored outside your functions.
// The Demo code in this file is designed to be easy to copy-and-paste into your application!
// Because of this:
// - We never omit the ImGui:: prefix when calling functions, even though most code here is in the same namespace.
// - We try to declare static variables in the local scope, as close as possible to the code using them.
// - We never use any of the helpers/facilities used internally by Dear ImGui, unless available in the public API.
// - We never use maths operators on ImVec2/ImVec4. For our other sources files we use them, and they are provided
// by imgui.h using the IMGUI_DEFINE_MATH_OPERATORS define. For your own sources file they are optional
// and require you either enable those, either provide your own via IM_VEC2_CLASS_EXTRA in imconfig.h.
// Because we can't assume anything about your support of maths operators, we cannot use them in imgui_demo.cpp.
// Navigating this file:
// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
/*
Index of this file:
// [SECTION] Forward Declarations
// [SECTION] Helpers
// [SECTION] Demo Window / ShowDemoWindow()
// - ShowDemoWindow()
// - sub section: ShowDemoWindowWidgets()
// - sub section: ShowDemoWindowLayout()
// - sub section: ShowDemoWindowPopups()
// - sub section: ShowDemoWindowTables()
// - sub section: ShowDemoWindowInputs()
// [SECTION] About Window / ShowAboutWindow()
// [SECTION] Style Editor / ShowStyleEditor()
// [SECTION] User Guide / ShowUserGuide()
// [SECTION] Example App: Main Menu Bar / ShowExampleAppMainMenuBar()
// [SECTION] Example App: Debug Console / ShowExampleAppConsole()
// [SECTION] Example App: Debug Log / ShowExampleAppLog()
// [SECTION] Example App: Simple Layout / ShowExampleAppLayout()
// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
// [SECTION] Example App: Long Text / ShowExampleAppLongText()
// [SECTION] Example App: Auto Resize / ShowExampleAppAutoResize()
// [SECTION] Example App: Constrained Resize / ShowExampleAppConstrainedResize()
// [SECTION] Example App: Simple overlay / ShowExampleAppSimpleOverlay()
// [SECTION] Example App: Fullscreen window / ShowExampleAppFullscreen()
// [SECTION] Example App: Manipulating window titles / ShowExampleAppWindowTitles()
// [SECTION] Example App: Custom Rendering using ImDrawList API / ShowExampleAppCustomRendering()
// [SECTION] Example App: Documents Handling / ShowExampleAppDocuments()
*/
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
// System includes
#include <ctype.h> // toupper
#include <limits.h> // INT_MIN, INT_MAX
#include <math.h> // sqrtf, powf, cosf, sinf, floorf, ceilf
#include <stdio.h> // vsnprintf, sscanf, printf
#include <stdlib.h> // NULL, malloc, free, atoi
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to an 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wdeprecated-declarations" // warning: 'xx' is deprecated: The POSIX name for this.. // for strdup used in demo code (so user can copy & paste the code)
#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast" // warning: cast to 'void *' from smaller integer type
#pragma clang diagnostic ignored "-Wformat-security" // warning: format string is not a string literal
#pragma clang diagnostic ignored "-Wexit-time-destructors" // warning: declaration requires an exit-time destructor // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
#pragma clang diagnostic ignored "-Wunused-macros" // warning: macro is not used // we define snprintf/vsnprintf on Windows so they are available, but not always used.
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wint-to-pointer-cast" // warning: cast to pointer from integer of different size
#pragma GCC diagnostic ignored "-Wformat-security" // warning: format string is not a string literal (potentially insecure)
#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
#pragma GCC diagnostic ignored "-Wmisleading-indentation" // [__GNUC__ >= 6] warning: this 'if' clause does not guard this statement // GCC 6.0+ only. See #883 on GitHub.
#endif
// Play it nice with Windows users (Update: May 2018, Notepad now supports Unix-style carriage returns!)
#ifdef _WIN32
#define IM_NEWLINE "\r\n"
#else
#define IM_NEWLINE "\n"
#endif
// Helpers
#if defined(_MSC_VER) && !defined(snprintf)
#define snprintf _snprintf
#endif
#if defined(_MSC_VER) && !defined(vsnprintf)
#define vsnprintf _vsnprintf
#endif
// Format specifiers, printing 64-bit hasn't been decently standardized...
// In a real application you should be using PRId64 and PRIu64 from <inttypes.h> (non-windows) and on Windows define them yourself.
#ifdef _MSC_VER
#define IM_PRId64 "I64d"
#define IM_PRIu64 "I64u"
#else
#define IM_PRId64 "lld"
#define IM_PRIu64 "llu"
#endif
// Helpers macros
// We normally try to not use many helpers in imgui_demo.cpp in order to make code easier to copy and paste,
// but making an exception here as those are largely simplifying code...
// In other imgui sources we can use nicer internal functions from imgui_internal.h (ImMin/ImMax) but not in the demo.
#define IM_MIN(A, B) (((A) < (B)) ? (A) : (B))
#define IM_MAX(A, B) (((A) >= (B)) ? (A) : (B))
#define IM_CLAMP(V, MN, MX) ((V) < (MN) ? (MN) : (V) > (MX) ? (MX) : (V))
// Enforce cdecl calling convention for functions called by the standard library, in case compilation settings changed the default to e.g. __vectorcall
#ifndef IMGUI_CDECL
#ifdef _MSC_VER
#define IMGUI_CDECL __cdecl
#else
#define IMGUI_CDECL
#endif
#endif
//-----------------------------------------------------------------------------
// [SECTION] Forward Declarations, Helpers
//-----------------------------------------------------------------------------
#if !defined(IMGUI_DISABLE_DEMO_WINDOWS)
// Forward Declarations
static void ShowExampleAppDocuments(bool* p_open);
static void ShowExampleAppMainMenuBar();
static void ShowExampleAppConsole(bool* p_open);
static void ShowExampleAppLog(bool* p_open);
static void ShowExampleAppLayout(bool* p_open);
static void ShowExampleAppPropertyEditor(bool* p_open);
static void ShowExampleAppLongText(bool* p_open);
static void ShowExampleAppAutoResize(bool* p_open);
static void ShowExampleAppConstrainedResize(bool* p_open);
static void ShowExampleAppSimpleOverlay(bool* p_open);
static void ShowExampleAppFullscreen(bool* p_open);
static void ShowExampleAppWindowTitles(bool* p_open);
static void ShowExampleAppCustomRendering(bool* p_open);
static void ShowExampleMenuFile();
// We split the contents of the big ShowDemoWindow() function into smaller functions
// (because the link time of very large functions grow non-linearly)
static void ShowDemoWindowWidgets();
static void ShowDemoWindowLayout();
static void ShowDemoWindowPopups();
static void ShowDemoWindowTables();
static void ShowDemoWindowColumns();
static void ShowDemoWindowInputs();
//-----------------------------------------------------------------------------
// [SECTION] Helpers
//-----------------------------------------------------------------------------
// Helper to display a little (?) mark which shows a tooltip when hovered.
// In your own code you may want to display an actual icon if you are using a merged icon fonts (see docs/FONTS.md)
static void HelpMarker(const char* desc)
{
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort) && ImGui::BeginTooltip())
{
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
// Helper to wire demo markers located in code to an interactive browser
typedef void (*ImGuiDemoMarkerCallback)(const char* file, int line, const char* section, void* user_data);
extern ImGuiDemoMarkerCallback GImGuiDemoMarkerCallback;
extern void* GImGuiDemoMarkerCallbackUserData;
ImGuiDemoMarkerCallback GImGuiDemoMarkerCallback = NULL;
void* GImGuiDemoMarkerCallbackUserData = NULL;
#define IMGUI_DEMO_MARKER(section) do { if (GImGuiDemoMarkerCallback != NULL) GImGuiDemoMarkerCallback(__FILE__, __LINE__, section, GImGuiDemoMarkerCallbackUserData); } while (0)
//-----------------------------------------------------------------------------
// [SECTION] Demo Window / ShowDemoWindow()
//-----------------------------------------------------------------------------
// - ShowDemoWindow()
// - ShowDemoWindowWidgets()
// - ShowDemoWindowLayout()
// - ShowDemoWindowPopups()
// - ShowDemoWindowTables()
// - ShowDemoWindowColumns()
// - ShowDemoWindowInputs()
//-----------------------------------------------------------------------------
// Demonstrate most Dear ImGui features (this is big function!)
// You may execute this function to experiment with the UI and understand what it does.
// You may then search for keywords in the code when you are interested by a specific feature.
void ImGui::ShowDemoWindow(bool* p_open)
{
// Exceptionally add an extra assert here for people confused about initial Dear ImGui setup
// Most functions would normally just crash if the context is missing.
IM_ASSERT(ImGui::GetCurrentContext() != NULL && "Missing dear imgui context. Refer to examples app!");
// Examples Apps (accessible from the "Examples" menu)
static bool show_app_main_menu_bar = false;
static bool show_app_documents = false;
static bool show_app_console = false;
static bool show_app_log = false;
static bool show_app_layout = false;
static bool show_app_property_editor = false;
static bool show_app_long_text = false;
static bool show_app_auto_resize = false;
static bool show_app_constrained_resize = false;
static bool show_app_simple_overlay = false;
static bool show_app_fullscreen = false;
static bool show_app_window_titles = false;
static bool show_app_custom_rendering = false;
if (show_app_main_menu_bar) ShowExampleAppMainMenuBar();
if (show_app_documents) ShowExampleAppDocuments(&show_app_documents);
if (show_app_console) ShowExampleAppConsole(&show_app_console);
if (show_app_log) ShowExampleAppLog(&show_app_log);
if (show_app_layout) ShowExampleAppLayout(&show_app_layout);
if (show_app_property_editor) ShowExampleAppPropertyEditor(&show_app_property_editor);
if (show_app_long_text) ShowExampleAppLongText(&show_app_long_text);
if (show_app_auto_resize) ShowExampleAppAutoResize(&show_app_auto_resize);
if (show_app_constrained_resize) ShowExampleAppConstrainedResize(&show_app_constrained_resize);
if (show_app_simple_overlay) ShowExampleAppSimpleOverlay(&show_app_simple_overlay);
if (show_app_fullscreen) ShowExampleAppFullscreen(&show_app_fullscreen);
if (show_app_window_titles) ShowExampleAppWindowTitles(&show_app_window_titles);
if (show_app_custom_rendering) ShowExampleAppCustomRendering(&show_app_custom_rendering);
// Dear ImGui Tools/Apps (accessible from the "Tools" menu)
static bool show_app_metrics = false;
static bool show_app_debug_log = false;
static bool show_app_stack_tool = false;
static bool show_app_about = false;
static bool show_app_style_editor = false;
if (show_app_metrics)
ImGui::ShowMetricsWindow(&show_app_metrics);
if (show_app_debug_log)
ImGui::ShowDebugLogWindow(&show_app_debug_log);
if (show_app_stack_tool)
ImGui::ShowStackToolWindow(&show_app_stack_tool);
if (show_app_about)
ImGui::ShowAboutWindow(&show_app_about);
if (show_app_style_editor)
{
ImGui::Begin("Dear ImGui Style Editor", &show_app_style_editor);
ImGui::ShowStyleEditor();
ImGui::End();
}
// Demonstrate the various window flags. Typically you would just use the default!
static bool no_titlebar = false;
static bool no_scrollbar = false;
static bool no_menu = false;
static bool no_move = false;
static bool no_resize = false;
static bool no_collapse = false;
static bool no_close = false;
static bool no_nav = false;
static bool no_background = false;
static bool no_bring_to_front = false;
static bool unsaved_document = false;
ImGuiWindowFlags window_flags = 0;
if (no_titlebar) window_flags |= ImGuiWindowFlags_NoTitleBar;
if (no_scrollbar) window_flags |= ImGuiWindowFlags_NoScrollbar;
if (!no_menu) window_flags |= ImGuiWindowFlags_MenuBar;
if (no_move) window_flags |= ImGuiWindowFlags_NoMove;
if (no_resize) window_flags |= ImGuiWindowFlags_NoResize;
if (no_collapse) window_flags |= ImGuiWindowFlags_NoCollapse;
if (no_nav) window_flags |= ImGuiWindowFlags_NoNav;
if (no_background) window_flags |= ImGuiWindowFlags_NoBackground;
if (no_bring_to_front) window_flags |= ImGuiWindowFlags_NoBringToFrontOnFocus;
if (unsaved_document) window_flags |= ImGuiWindowFlags_UnsavedDocument;
if (no_close) p_open = NULL; // Don't pass our bool* to Begin
// We specify a default position/size in case there's no data in the .ini file.
// We only do it to make the demo applications a little more welcoming, but typically this isn't required.
const ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui::SetNextWindowPos(ImVec2(main_viewport->WorkPos.x + 650, main_viewport->WorkPos.y + 20), ImGuiCond_FirstUseEver);
ImGui::SetNextWindowSize(ImVec2(550, 680), ImGuiCond_FirstUseEver);
// Main body of the Demo window starts here.
if (!ImGui::Begin("Dear ImGui Demo", p_open, window_flags))
{
// Early out if the window is collapsed, as an optimization.
ImGui::End();
return;
}
// Most "big" widgets share a common width settings by default. See 'Demo->Layout->Widgets Width' for details.
// e.g. Use 2/3 of the space for widgets and 1/3 for labels (right align)
//ImGui::PushItemWidth(-ImGui::GetWindowWidth() * 0.35f);
// e.g. Leave a fixed amount of width for labels (by passing a negative value), the rest goes to widgets.
ImGui::PushItemWidth(ImGui::GetFontSize() * -12);
// Menu Bar
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("Menu"))
{
IMGUI_DEMO_MARKER("Menu/File");
ShowExampleMenuFile();
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Examples"))
{
IMGUI_DEMO_MARKER("Menu/Examples");
ImGui::MenuItem("Main menu bar", NULL, &show_app_main_menu_bar);
ImGui::MenuItem("Console", NULL, &show_app_console);
ImGui::MenuItem("Log", NULL, &show_app_log);
ImGui::MenuItem("Simple layout", NULL, &show_app_layout);
ImGui::MenuItem("Property editor", NULL, &show_app_property_editor);
ImGui::MenuItem("Long text display", NULL, &show_app_long_text);
ImGui::MenuItem("Auto-resizing window", NULL, &show_app_auto_resize);
ImGui::MenuItem("Constrained-resizing window", NULL, &show_app_constrained_resize);
ImGui::MenuItem("Simple overlay", NULL, &show_app_simple_overlay);
ImGui::MenuItem("Fullscreen window", NULL, &show_app_fullscreen);
ImGui::MenuItem("Manipulating window titles", NULL, &show_app_window_titles);
ImGui::MenuItem("Custom rendering", NULL, &show_app_custom_rendering);
ImGui::MenuItem("Documents", NULL, &show_app_documents);
ImGui::EndMenu();
}
//if (ImGui::MenuItem("MenuItem")) {} // You can also use MenuItem() inside a menu bar!
if (ImGui::BeginMenu("Tools"))
{
IMGUI_DEMO_MARKER("Menu/Tools");
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
const bool has_debug_tools = true;
#else
const bool has_debug_tools = false;
#endif
ImGui::MenuItem("Metrics/Debugger", NULL, &show_app_metrics, has_debug_tools);
ImGui::MenuItem("Debug Log", NULL, &show_app_debug_log, has_debug_tools);
ImGui::MenuItem("Stack Tool", NULL, &show_app_stack_tool, has_debug_tools);
ImGui::MenuItem("Style Editor", NULL, &show_app_style_editor);
ImGui::MenuItem("About Dear ImGui", NULL, &show_app_about);
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
ImGui::Text("dear imgui says hello! (%s) (%d)", IMGUI_VERSION, IMGUI_VERSION_NUM);
ImGui::Spacing();
IMGUI_DEMO_MARKER("Help");
if (ImGui::CollapsingHeader("Help"))
{
ImGui::Text("ABOUT THIS DEMO:");
ImGui::BulletText("Sections below are demonstrating many aspects of the library.");
ImGui::BulletText("The \"Examples\" menu above leads to more demo contents.");
ImGui::BulletText("The \"Tools\" menu above gives access to: About Box, Style Editor,\n"
"and Metrics/Debugger (general purpose Dear ImGui debugging tool).");
ImGui::Separator();
ImGui::Text("PROGRAMMER GUIDE:");
ImGui::BulletText("See the ShowDemoWindow() code in imgui_demo.cpp. <- you are here!");
ImGui::BulletText("See comments in imgui.cpp.");
ImGui::BulletText("See example applications in the examples/ folder.");
ImGui::BulletText("Read the FAQ at http://www.dearimgui.org/faq/");
ImGui::BulletText("Set 'io.ConfigFlags |= NavEnableKeyboard' for keyboard controls.");
ImGui::BulletText("Set 'io.ConfigFlags |= NavEnableGamepad' for gamepad controls.");
ImGui::Separator();
ImGui::Text("USER GUIDE:");
ImGui::ShowUserGuide();
}
IMGUI_DEMO_MARKER("Configuration");
if (ImGui::CollapsingHeader("Configuration"))
{
ImGuiIO& io = ImGui::GetIO();
if (ImGui::TreeNode("Configuration##2"))
{
ImGui::SeparatorText("General");
ImGui::CheckboxFlags("io.ConfigFlags: NavEnableKeyboard", &io.ConfigFlags, ImGuiConfigFlags_NavEnableKeyboard);
ImGui::SameLine(); HelpMarker("Enable keyboard controls.");
ImGui::CheckboxFlags("io.ConfigFlags: NavEnableGamepad", &io.ConfigFlags, ImGuiConfigFlags_NavEnableGamepad);
ImGui::SameLine(); HelpMarker("Enable gamepad controls. Require backend to set io.BackendFlags |= ImGuiBackendFlags_HasGamepad.\n\nRead instructions in imgui.cpp for details.");
ImGui::CheckboxFlags("io.ConfigFlags: NavEnableSetMousePos", &io.ConfigFlags, ImGuiConfigFlags_NavEnableSetMousePos);
ImGui::SameLine(); HelpMarker("Instruct navigation to move the mouse cursor. See comment for ImGuiConfigFlags_NavEnableSetMousePos.");
ImGui::CheckboxFlags("io.ConfigFlags: NoMouse", &io.ConfigFlags, ImGuiConfigFlags_NoMouse);
if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)
{
// The "NoMouse" option can get us stuck with a disabled mouse! Let's provide an alternative way to fix it:
if (fmodf((float)ImGui::GetTime(), 0.40f) < 0.20f)
{
ImGui::SameLine();
ImGui::Text("<<PRESS SPACE TO DISABLE>>");
}
if (ImGui::IsKeyPressed(ImGuiKey_Space))
io.ConfigFlags &= ~ImGuiConfigFlags_NoMouse;
}
ImGui::CheckboxFlags("io.ConfigFlags: NoMouseCursorChange", &io.ConfigFlags, ImGuiConfigFlags_NoMouseCursorChange);
ImGui::SameLine(); HelpMarker("Instruct backend to not alter mouse cursor shape and visibility.");
ImGui::Checkbox("io.ConfigInputTrickleEventQueue", &io.ConfigInputTrickleEventQueue);
ImGui::SameLine(); HelpMarker("Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.");
ImGui::Checkbox("io.MouseDrawCursor", &io.MouseDrawCursor);
ImGui::SameLine(); HelpMarker("Instruct Dear ImGui to render a mouse cursor itself. Note that a mouse cursor rendered via your application GPU rendering path will feel more laggy than hardware cursor, but will be more in sync with your other visuals.\n\nSome desktop applications may use both kinds of cursors (e.g. enable software cursor only when resizing/dragging something).");
ImGui::SeparatorText("Widgets");
ImGui::Checkbox("io.ConfigInputTextCursorBlink", &io.ConfigInputTextCursorBlink);
ImGui::SameLine(); HelpMarker("Enable blinking cursor (optional as some users consider it to be distracting).");
ImGui::Checkbox("io.ConfigInputTextEnterKeepActive", &io.ConfigInputTextEnterKeepActive);
ImGui::SameLine(); HelpMarker("Pressing Enter will keep item active and select contents (single-line only).");
ImGui::Checkbox("io.ConfigDragClickToInputText", &io.ConfigDragClickToInputText);
ImGui::SameLine(); HelpMarker("Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving).");
ImGui::Checkbox("io.ConfigWindowsResizeFromEdges", &io.ConfigWindowsResizeFromEdges);
ImGui::SameLine(); HelpMarker("Enable resizing of windows from their edges and from the lower-left corner.\nThis requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback.");
ImGui::Checkbox("io.ConfigWindowsMoveFromTitleBarOnly", &io.ConfigWindowsMoveFromTitleBarOnly);
ImGui::Checkbox("io.ConfigMacOSXBehaviors", &io.ConfigMacOSXBehaviors);
ImGui::Text("Also see Style->Rendering for rendering options.");
ImGui::SeparatorText("Debug");
ImGui::BeginDisabled();
ImGui::Checkbox("io.ConfigDebugBeginReturnValueOnce", &io.ConfigDebugBeginReturnValueOnce); // .
ImGui::EndDisabled();
ImGui::SameLine(); HelpMarker("First calls to Begin()/BeginChild() will return false.\n\nTHIS OPTION IS DISABLED because it needs to be set at application boot-time to make sense. Showing the disabled option is a way to make this feature easier to discover");
ImGui::Checkbox("io.ConfigDebugBeginReturnValueLoop", &io.ConfigDebugBeginReturnValueLoop);
ImGui::SameLine(); HelpMarker("Some calls to Begin()/BeginChild() will return false.\n\nWill cycle through window depths then repeat. Windows should be flickering while running.");
ImGui::TreePop();
ImGui::Spacing();
}
IMGUI_DEMO_MARKER("Configuration/Backend Flags");
if (ImGui::TreeNode("Backend Flags"))
{
HelpMarker(
"Those flags are set by the backends (imgui_impl_xxx files) to specify their capabilities.\n"
"Here we expose them as read-only fields to avoid breaking interactions with your backend.");
// Make a local copy to avoid modifying actual backend flags.
// FIXME: We don't use BeginDisabled() to keep label bright, maybe we need a BeginReadonly() equivalent..
ImGuiBackendFlags backend_flags = io.BackendFlags;
ImGui::CheckboxFlags("io.BackendFlags: HasGamepad", &backend_flags, ImGuiBackendFlags_HasGamepad);
ImGui::CheckboxFlags("io.BackendFlags: HasMouseCursors", &backend_flags, ImGuiBackendFlags_HasMouseCursors);
ImGui::CheckboxFlags("io.BackendFlags: HasSetMousePos", &backend_flags, ImGuiBackendFlags_HasSetMousePos);
ImGui::CheckboxFlags("io.BackendFlags: RendererHasVtxOffset", &backend_flags, ImGuiBackendFlags_RendererHasVtxOffset);
ImGui::TreePop();
ImGui::Spacing();
}
IMGUI_DEMO_MARKER("Configuration/Style");
if (ImGui::TreeNode("Style"))
{
HelpMarker("The same contents can be accessed in 'Tools->Style Editor' or by calling the ShowStyleEditor() function.");
ImGui::ShowStyleEditor();
ImGui::TreePop();
ImGui::Spacing();
}
IMGUI_DEMO_MARKER("Configuration/Capture, Logging");
if (ImGui::TreeNode("Capture/Logging"))
{
HelpMarker(
"The logging API redirects all text output so you can easily capture the content of "
"a window or a block. Tree nodes can be automatically expanded.\n"
"Try opening any of the contents below in this window and then click one of the \"Log To\" button.");
ImGui::LogButtons();
HelpMarker("You can also call ImGui::LogText() to output directly to the log without a visual output.");
if (ImGui::Button("Copy \"Hello, world!\" to clipboard"))
{
ImGui::LogToClipboard();
ImGui::LogText("Hello, world!");
ImGui::LogFinish();
}
ImGui::TreePop();
}
}
IMGUI_DEMO_MARKER("Window options");
if (ImGui::CollapsingHeader("Window options"))
{
if (ImGui::BeginTable("split", 3))
{
ImGui::TableNextColumn(); ImGui::Checkbox("No titlebar", &no_titlebar);
ImGui::TableNextColumn(); ImGui::Checkbox("No scrollbar", &no_scrollbar);
ImGui::TableNextColumn(); ImGui::Checkbox("No menu", &no_menu);
ImGui::TableNextColumn(); ImGui::Checkbox("No move", &no_move);
ImGui::TableNextColumn(); ImGui::Checkbox("No resize", &no_resize);
ImGui::TableNextColumn(); ImGui::Checkbox("No collapse", &no_collapse);
ImGui::TableNextColumn(); ImGui::Checkbox("No close", &no_close);
ImGui::TableNextColumn(); ImGui::Checkbox("No nav", &no_nav);
ImGui::TableNextColumn(); ImGui::Checkbox("No background", &no_background);
ImGui::TableNextColumn(); ImGui::Checkbox("No bring to front", &no_bring_to_front);
ImGui::TableNextColumn(); ImGui::Checkbox("Unsaved document", &unsaved_document);
ImGui::EndTable();
}
}
// All demo contents
ShowDemoWindowWidgets();
ShowDemoWindowLayout();
ShowDemoWindowPopups();
ShowDemoWindowTables();
ShowDemoWindowInputs();
// End of ShowDemoWindow()
ImGui::PopItemWidth();
ImGui::End();
}
static void ShowDemoWindowWidgets()
{
IMGUI_DEMO_MARKER("Widgets");
if (!ImGui::CollapsingHeader("Widgets"))
return;
static bool disable_all = false; // The Checkbox for that is inside the "Disabled" section at the bottom
if (disable_all)
ImGui::BeginDisabled();
IMGUI_DEMO_MARKER("Widgets/Basic");
if (ImGui::TreeNode("Basic"))
{
ImGui::SeparatorText("General");
IMGUI_DEMO_MARKER("Widgets/Basic/Button");
static int clicked = 0;
if (ImGui::Button("Button"))
clicked++;
if (clicked & 1)
{
ImGui::SameLine();
ImGui::Text("Thanks for clicking me!");
}
IMGUI_DEMO_MARKER("Widgets/Basic/Checkbox");
static bool check = true;
ImGui::Checkbox("checkbox", &check);
IMGUI_DEMO_MARKER("Widgets/Basic/RadioButton");
static int e = 0;
ImGui::RadioButton("radio a", &e, 0); ImGui::SameLine();
ImGui::RadioButton("radio b", &e, 1); ImGui::SameLine();
ImGui::RadioButton("radio c", &e, 2);
// Color buttons, demonstrate using PushID() to add unique identifier in the ID stack, and changing style.
IMGUI_DEMO_MARKER("Widgets/Basic/Buttons (Colored)");
for (int i = 0; i < 7; i++)
{
if (i > 0)
ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(i / 7.0f, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(i / 7.0f, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(i / 7.0f, 0.8f, 0.8f));
ImGui::Button("Click");
ImGui::PopStyleColor(3);
ImGui::PopID();
}
// Use AlignTextToFramePadding() to align text baseline to the baseline of framed widgets elements
// (otherwise a Text+SameLine+Button sequence will have the text a little too high by default!)
// See 'Demo->Layout->Text Baseline Alignment' for details.
ImGui::AlignTextToFramePadding();
ImGui::Text("Hold to repeat:");
ImGui::SameLine();
// Arrow buttons with Repeater
IMGUI_DEMO_MARKER("Widgets/Basic/Buttons (Repeating)");
static int counter = 0;
float spacing = ImGui::GetStyle().ItemInnerSpacing.x;
ImGui::PushButtonRepeat(true);
if (ImGui::ArrowButton("##left", ImGuiDir_Left)) { counter--; }
ImGui::SameLine(0.0f, spacing);
if (ImGui::ArrowButton("##right", ImGuiDir_Right)) { counter++; }
ImGui::PopButtonRepeat();
ImGui::SameLine();
ImGui::Text("%d", counter);
{
// Tooltips
IMGUI_DEMO_MARKER("Widgets/Basic/Tooltips");
//ImGui::AlignTextToFramePadding();
ImGui::Text("Tooltips:");
ImGui::SameLine();
ImGui::SmallButton("Button");
if (ImGui::IsItemHovered())
ImGui::SetTooltip("I am a tooltip");
ImGui::SameLine();
ImGui::SmallButton("Fancy");
if (ImGui::IsItemHovered() && ImGui::BeginTooltip())
{
ImGui::Text("I am a fancy tooltip");
static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
ImGui::PlotLines("Curve", arr, IM_ARRAYSIZE(arr));
ImGui::Text("Sin(time) = %f", sinf((float)ImGui::GetTime()));
ImGui::EndTooltip();
}
ImGui::SameLine();
ImGui::SmallButton("Delayed");
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayNormal)) // With a delay
ImGui::SetTooltip("I am a tooltip with a delay.");
ImGui::SameLine();
HelpMarker(
"Tooltip are created by using the IsItemHovered() function over any kind of item.");
}
ImGui::LabelText("label", "Value");
ImGui::SeparatorText("Inputs");
{
// To wire InputText() with std::string or any other custom string type,
// see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
IMGUI_DEMO_MARKER("Widgets/Basic/InputText");
static char str0[128] = "Hello, world!";
ImGui::InputText("input text", str0, IM_ARRAYSIZE(str0));
ImGui::SameLine(); HelpMarker(
"USER:\n"
"Hold SHIFT or use mouse to select text.\n"
"CTRL+Left/Right to word jump.\n"
"CTRL+A or Double-Click to select all.\n"
"CTRL+X,CTRL+C,CTRL+V clipboard.\n"
"CTRL+Z,CTRL+Y undo/redo.\n"
"ESCAPE to revert.\n\n"
"PROGRAMMER:\n"
"You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputText() "
"to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example (this is not demonstrated "
"in imgui_demo.cpp).");
static char str1[128] = "";
ImGui::InputTextWithHint("input text (w/ hint)", "enter text here", str1, IM_ARRAYSIZE(str1));
IMGUI_DEMO_MARKER("Widgets/Basic/InputInt, InputFloat");
static int i0 = 123;
ImGui::InputInt("input int", &i0);
static float f0 = 0.001f;
ImGui::InputFloat("input float", &f0, 0.01f, 1.0f, "%.3f");
static double d0 = 999999.00000001;
ImGui::InputDouble("input double", &d0, 0.01f, 1.0f, "%.8f");
static float f1 = 1.e10f;
ImGui::InputFloat("input scientific", &f1, 0.0f, 0.0f, "%e");
ImGui::SameLine(); HelpMarker(
"You can input value using the scientific notation,\n"
" e.g. \"1e+8\" becomes \"100000000\".");
static float vec4a[4] = { 0.10f, 0.20f, 0.30f, 0.44f };
ImGui::InputFloat3("input float3", vec4a);
}
ImGui::SeparatorText("Drags");
{
IMGUI_DEMO_MARKER("Widgets/Basic/DragInt, DragFloat");
static int i1 = 50, i2 = 42;
ImGui::DragInt("drag int", &i1, 1);
ImGui::SameLine(); HelpMarker(
"Click and drag to edit value.\n"
"Hold SHIFT/ALT for faster/slower edit.\n"
"Double-click or CTRL+click to input value.");
ImGui::DragInt("drag int 0..100", &i2, 1, 0, 100, "%d%%", ImGuiSliderFlags_AlwaysClamp);
static float f1 = 1.00f, f2 = 0.0067f;
ImGui::DragFloat("drag float", &f1, 0.005f);
ImGui::DragFloat("drag small float", &f2, 0.0001f, 0.0f, 0.0f, "%.06f ns");
}
ImGui::SeparatorText("Sliders");
{
IMGUI_DEMO_MARKER("Widgets/Basic/SliderInt, SliderFloat");
static int i1 = 0;
ImGui::SliderInt("slider int", &i1, -1, 3);
ImGui::SameLine(); HelpMarker("CTRL+click to input value.");
static float f1 = 0.123f, f2 = 0.0f;
ImGui::SliderFloat("slider float", &f1, 0.0f, 1.0f, "ratio = %.3f");
ImGui::SliderFloat("slider float (log)", &f2, -10.0f, 10.0f, "%.4f", ImGuiSliderFlags_Logarithmic);
IMGUI_DEMO_MARKER("Widgets/Basic/SliderAngle");
static float angle = 0.0f;
ImGui::SliderAngle("slider angle", &angle);
// Using the format string to display a name instead of an integer.
// Here we completely omit '%d' from the format string, so it'll only display a name.
// This technique can also be used with DragInt().
IMGUI_DEMO_MARKER("Widgets/Basic/Slider (enum)");
enum Element { Element_Fire, Element_Earth, Element_Air, Element_Water, Element_COUNT };
static int elem = Element_Fire;
const char* elems_names[Element_COUNT] = { "Fire", "Earth", "Air", "Water" };
const char* elem_name = (elem >= 0 && elem < Element_COUNT) ? elems_names[elem] : "Unknown";
ImGui::SliderInt("slider enum", &elem, 0, Element_COUNT - 1, elem_name);
ImGui::SameLine(); HelpMarker("Using the format string parameter to display a name instead of the underlying integer.");
}
ImGui::SeparatorText("Selectors/Pickers");
{
IMGUI_DEMO_MARKER("Widgets/Basic/ColorEdit3, ColorEdit4");
static float col1[3] = { 1.0f, 0.0f, 0.2f };
static float col2[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
ImGui::ColorEdit3("color 1", col1);
ImGui::SameLine(); HelpMarker(
"Click on the color square to open a color picker.\n"
"Click and hold to use drag and drop.\n"
"Right-click on the color square to show options.\n"
"CTRL+click on individual component to input value.\n");
ImGui::ColorEdit4("color 2", col2);
}
{
// Using the _simplified_ one-liner Combo() api here
// See "Combo" section for examples of how to use the more flexible BeginCombo()/EndCombo() api.
IMGUI_DEMO_MARKER("Widgets/Basic/Combo");
const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIIIIII", "JJJJ", "KKKKKKK" };
static int item_current = 0;
ImGui::Combo("combo", &item_current, items, IM_ARRAYSIZE(items));
ImGui::SameLine(); HelpMarker(
"Using the simplified one-liner Combo API here.\nRefer to the \"Combo\" section below for an explanation of how to use the more flexible and general BeginCombo/EndCombo API.");
}
{
// Using the _simplified_ one-liner ListBox() api here
// See "List boxes" section for examples of how to use the more flexible BeginListBox()/EndListBox() api.
IMGUI_DEMO_MARKER("Widgets/Basic/ListBox");
const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
static int item_current = 1;
ImGui::ListBox("listbox", &item_current, items, IM_ARRAYSIZE(items), 4);
ImGui::SameLine(); HelpMarker(
"Using the simplified one-liner ListBox API here.\nRefer to the \"List boxes\" section below for an explanation of how to use the more flexible and general BeginListBox/EndListBox API.");
}
ImGui::TreePop();
}
// Testing ImGuiOnceUponAFrame helper.
//static ImGuiOnceUponAFrame once;
//for (int i = 0; i < 5; i++)
// if (once)
// ImGui::Text("This will be displayed only once.");
IMGUI_DEMO_MARKER("Widgets/Trees");
if (ImGui::TreeNode("Trees"))
{
IMGUI_DEMO_MARKER("Widgets/Trees/Basic trees");
if (ImGui::TreeNode("Basic trees"))
{
for (int i = 0; i < 5; i++)
{
// Use SetNextItemOpen() so set the default state of a node to be open. We could
// also use TreeNodeEx() with the ImGuiTreeNodeFlags_DefaultOpen flag to achieve the same thing!
if (i == 0)
ImGui::SetNextItemOpen(true, ImGuiCond_Once);
if (ImGui::TreeNode((void*)(intptr_t)i, "Child %d", i))
{
ImGui::Text("blah blah");
ImGui::SameLine();
if (ImGui::SmallButton("button")) {}
ImGui::TreePop();
}
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Trees/Advanced, with Selectable nodes");
if (ImGui::TreeNode("Advanced, with Selectable nodes"))
{
HelpMarker(
"This is a more typical looking tree with selectable nodes.\n"
"Click to select, CTRL+Click to toggle, click on arrows or double-click to open.");
static ImGuiTreeNodeFlags base_flags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick | ImGuiTreeNodeFlags_SpanAvailWidth;
static bool align_label_with_current_x_position = false;
static bool test_drag_and_drop = false;
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnArrow", &base_flags, ImGuiTreeNodeFlags_OpenOnArrow);
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnDoubleClick", &base_flags, ImGuiTreeNodeFlags_OpenOnDoubleClick);
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAvailWidth", &base_flags, ImGuiTreeNodeFlags_SpanAvailWidth); ImGui::SameLine(); HelpMarker("Extend hit area to all available width instead of allowing more items to be laid out after the node.");
ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth", &base_flags, ImGuiTreeNodeFlags_SpanFullWidth);
ImGui::Checkbox("Align label with current X position", &align_label_with_current_x_position);
ImGui::Checkbox("Test tree node as drag source", &test_drag_and_drop);
ImGui::Text("Hello!");
if (align_label_with_current_x_position)
ImGui::Unindent(ImGui::GetTreeNodeToLabelSpacing());
// 'selection_mask' is dumb representation of what may be user-side selection state.
// You may retain selection state inside or outside your objects in whatever format you see fit.
// 'node_clicked' is temporary storage of what node we have clicked to process selection at the end
/// of the loop. May be a pointer to your own node type, etc.
static int selection_mask = (1 << 2);
int node_clicked = -1;
for (int i = 0; i < 6; i++)
{
// Disable the default "open on single-click behavior" + set Selected flag according to our selection.
// To alter selection we use IsItemClicked() && !IsItemToggledOpen(), so clicking on an arrow doesn't alter selection.
ImGuiTreeNodeFlags node_flags = base_flags;
const bool is_selected = (selection_mask & (1 << i)) != 0;
if (is_selected)
node_flags |= ImGuiTreeNodeFlags_Selected;
if (i < 3)
{
// Items 0..2 are Tree Node
bool node_open = ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Node %d", i);
if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
node_clicked = i;
if (test_drag_and_drop && ImGui::BeginDragDropSource())
{
ImGui::SetDragDropPayload("_TREENODE", NULL, 0);
ImGui::Text("This is a drag and drop source");
ImGui::EndDragDropSource();
}
if (node_open)
{
ImGui::BulletText("Blah blah\nBlah Blah");
ImGui::TreePop();
}
}
else
{
// Items 3..5 are Tree Leaves
// The only reason we use TreeNode at all is to allow selection of the leaf. Otherwise we can
// use BulletText() or advance the cursor by GetTreeNodeToLabelSpacing() and call Text().
node_flags |= ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen; // ImGuiTreeNodeFlags_Bullet
ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Leaf %d", i);
if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
node_clicked = i;
if (test_drag_and_drop && ImGui::BeginDragDropSource())
{
ImGui::SetDragDropPayload("_TREENODE", NULL, 0);
ImGui::Text("This is a drag and drop source");
ImGui::EndDragDropSource();
}
}
}
if (node_clicked != -1)
{
// Update selection state
// (process outside of tree loop to avoid visual inconsistencies during the clicking frame)
if (ImGui::GetIO().KeyCtrl)
selection_mask ^= (1 << node_clicked); // CTRL+click to toggle
else //if (!(selection_mask & (1 << node_clicked))) // Depending on selection behavior you want, may want to preserve selection when clicking on item that is part of the selection
selection_mask = (1 << node_clicked); // Click to single-select
}
if (align_label_with_current_x_position)
ImGui::Indent(ImGui::GetTreeNodeToLabelSpacing());
ImGui::TreePop();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Collapsing Headers");
if (ImGui::TreeNode("Collapsing Headers"))
{
static bool closable_group = true;
ImGui::Checkbox("Show 2nd header", &closable_group);
if (ImGui::CollapsingHeader("Header", ImGuiTreeNodeFlags_None))
{
ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
for (int i = 0; i < 5; i++)
ImGui::Text("Some content %d", i);
}
if (ImGui::CollapsingHeader("Header with a close button", &closable_group))
{
ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
for (int i = 0; i < 5; i++)
ImGui::Text("More content %d", i);
}
/*
if (ImGui::CollapsingHeader("Header with a bullet", ImGuiTreeNodeFlags_Bullet))
ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
*/
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Bullets");
if (ImGui::TreeNode("Bullets"))
{
ImGui::BulletText("Bullet point 1");
ImGui::BulletText("Bullet point 2\nOn multiple lines");
if (ImGui::TreeNode("Tree node"))
{
ImGui::BulletText("Another bullet point");
ImGui::TreePop();
}
ImGui::Bullet(); ImGui::Text("Bullet point 3 (two calls)");
ImGui::Bullet(); ImGui::SmallButton("Button");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text");
if (ImGui::TreeNode("Text"))
{
IMGUI_DEMO_MARKER("Widgets/Text/Colored Text");
if (ImGui::TreeNode("Colorful Text"))
{
// Using shortcut. You can use PushStyleColor()/PopStyleColor() for more flexibility.
ImGui::TextColored(ImVec4(1.0f, 0.0f, 1.0f, 1.0f), "Pink");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "Yellow");
ImGui::TextDisabled("Disabled");
ImGui::SameLine(); HelpMarker("The TextDisabled color is stored in ImGuiStyle.");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text/Word Wrapping");
if (ImGui::TreeNode("Word Wrapping"))
{
// Using shortcut. You can use PushTextWrapPos()/PopTextWrapPos() for more flexibility.
ImGui::TextWrapped(
"This text should automatically wrap on the edge of the window. The current implementation "
"for text wrapping follows simple rules suitable for English and possibly other languages.");
ImGui::Spacing();
static float wrap_width = 200.0f;
ImGui::SliderFloat("Wrap width", &wrap_width, -20, 600, "%.0f");
ImDrawList* draw_list = ImGui::GetWindowDrawList();
for (int n = 0; n < 2; n++)
{
ImGui::Text("Test paragraph %d:", n);
ImVec2 pos = ImGui::GetCursorScreenPos();
ImVec2 marker_min = ImVec2(pos.x + wrap_width, pos.y);
ImVec2 marker_max = ImVec2(pos.x + wrap_width + 10, pos.y + ImGui::GetTextLineHeight());
ImGui::PushTextWrapPos(ImGui::GetCursorPos().x + wrap_width);
if (n == 0)
ImGui::Text("The lazy dog is a good dog. This paragraph should fit within %.0f pixels. Testing a 1 character word. The quick brown fox jumps over the lazy dog.", wrap_width);
else
ImGui::Text("aaaaaaaa bbbbbbbb, c cccccccc,dddddddd. d eeeeeeee ffffffff. gggggggg!hhhhhhhh");
// Draw actual text bounding box, following by marker of our expected limit (should not overlap!)
draw_list->AddRect(ImGui::GetItemRectMin(), ImGui::GetItemRectMax(), IM_COL32(255, 255, 0, 255));
draw_list->AddRectFilled(marker_min, marker_max, IM_COL32(255, 0, 255, 255));
ImGui::PopTextWrapPos();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text/UTF-8 Text");
if (ImGui::TreeNode("UTF-8 Text"))
{
// UTF-8 test with Japanese characters
// (Needs a suitable font? Try "Google Noto" or "Arial Unicode". See docs/FONTS.md for details.)
// - From C++11 you can use the u8"my text" syntax to encode literal strings as UTF-8
// - For earlier compiler, you may be able to encode your sources as UTF-8 (e.g. in Visual Studio, you
// can save your source files as 'UTF-8 without signature').
// - FOR THIS DEMO FILE ONLY, BECAUSE WE WANT TO SUPPORT OLD COMPILERS, WE ARE *NOT* INCLUDING RAW UTF-8
// CHARACTERS IN THIS SOURCE FILE. Instead we are encoding a few strings with hexadecimal constants.
// Don't do this in your application! Please use u8"text in any language" in your application!
// Note that characters values are preserved even by InputText() if the font cannot be displayed,
// so you can safely copy & paste garbled characters into another application.
ImGui::TextWrapped(
"CJK text will only appear if the font was loaded with the appropriate CJK character ranges. "
"Call io.Fonts->AddFontFromFileTTF() manually to load extra character ranges. "
"Read docs/FONTS.md for details.");
ImGui::Text("Hiragana: \xe3\x81\x8b\xe3\x81\x8d\xe3\x81\x8f\xe3\x81\x91\xe3\x81\x93 (kakikukeko)"); // Normally we would use u8"blah blah" with the proper characters directly in the string.
ImGui::Text("Kanjis: \xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e (nihongo)");
static char buf[32] = "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e";
//static char buf[32] = u8"NIHONGO"; // <- this is how you would write it with C++11, using real kanjis
ImGui::InputText("UTF-8 input", buf, IM_ARRAYSIZE(buf));
ImGui::TreePop();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Images");
if (ImGui::TreeNode("Images"))
{
ImGuiIO& io = ImGui::GetIO();
ImGui::TextWrapped(
"Below we are displaying the font texture (which is the only texture we have access to in this demo). "
"Use the 'ImTextureID' type as storage to pass pointers or identifier to your own texture data. "
"Hover the texture for a zoomed view!");
// Below we are displaying the font texture because it is the only texture we have access to inside the demo!
// Remember that ImTextureID is just storage for whatever you want it to be. It is essentially a value that
// will be passed to the rendering backend via the ImDrawCmd structure.
// If you use one of the default imgui_impl_XXXX.cpp rendering backend, they all have comments at the top
// of their respective source file to specify what they expect to be stored in ImTextureID, for example:
// - The imgui_impl_dx11.cpp renderer expect a 'ID3D11ShaderResourceView*' pointer
// - The imgui_impl_opengl3.cpp renderer expect a GLuint OpenGL texture identifier, etc.
// More:
// - If you decided that ImTextureID = MyEngineTexture*, then you can pass your MyEngineTexture* pointers
// to ImGui::Image(), and gather width/height through your own functions, etc.
// - You can use ShowMetricsWindow() to inspect the draw data that are being passed to your renderer,
// it will help you debug issues if you are confused about it.
// - Consider using the lower-level ImDrawList::AddImage() API, via ImGui::GetWindowDrawList()->AddImage().
// - Read https://github.com/ocornut/imgui/blob/master/docs/FAQ.md
// - Read https://github.com/ocornut/imgui/wiki/Image-Loading-and-Displaying-Examples
ImTextureID my_tex_id = io.Fonts->TexID;
float my_tex_w = (float)io.Fonts->TexWidth;
float my_tex_h = (float)io.Fonts->TexHeight;
{
static bool use_text_color_for_tint = false;
ImGui::Checkbox("Use Text Color for Tint", &use_text_color_for_tint);
ImGui::Text("%.0fx%.0f", my_tex_w, my_tex_h);
ImVec2 pos = ImGui::GetCursorScreenPos();
ImVec2 uv_min = ImVec2(0.0f, 0.0f); // Top-left
ImVec2 uv_max = ImVec2(1.0f, 1.0f); // Lower-right
ImVec4 tint_col = use_text_color_for_tint ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : ImVec4(1.0f, 1.0f, 1.0f, 1.0f); // No tint
ImVec4 border_col = ImGui::GetStyleColorVec4(ImGuiCol_Border);
ImGui::Image(my_tex_id, ImVec2(my_tex_w, my_tex_h), uv_min, uv_max, tint_col, border_col);
if (ImGui::IsItemHovered() && ImGui::BeginTooltip())
{
float region_sz = 32.0f;
float region_x = io.MousePos.x - pos.x - region_sz * 0.5f;
float region_y = io.MousePos.y - pos.y - region_sz * 0.5f;
float zoom = 4.0f;
if (region_x < 0.0f) { region_x = 0.0f; }
else if (region_x > my_tex_w - region_sz) { region_x = my_tex_w - region_sz; }
if (region_y < 0.0f) { region_y = 0.0f; }
else if (region_y > my_tex_h - region_sz) { region_y = my_tex_h - region_sz; }
ImGui::Text("Min: (%.2f, %.2f)", region_x, region_y);
ImGui::Text("Max: (%.2f, %.2f)", region_x + region_sz, region_y + region_sz);
ImVec2 uv0 = ImVec2((region_x) / my_tex_w, (region_y) / my_tex_h);
ImVec2 uv1 = ImVec2((region_x + region_sz) / my_tex_w, (region_y + region_sz) / my_tex_h);
ImGui::Image(my_tex_id, ImVec2(region_sz * zoom, region_sz * zoom), uv0, uv1, tint_col, border_col);
ImGui::EndTooltip();
}
}
IMGUI_DEMO_MARKER("Widgets/Images/Textured buttons");
ImGui::TextWrapped("And now some textured buttons..");
static int pressed_count = 0;
for (int i = 0; i < 8; i++)
{
// UV coordinates are often (0.0f, 0.0f) and (1.0f, 1.0f) to display an entire textures.
// Here are trying to display only a 32x32 pixels area of the texture, hence the UV computation.
// Read about UV coordinates here: https://github.com/ocornut/imgui/wiki/Image-Loading-and-Displaying-Examples
ImGui::PushID(i);
if (i > 0)
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(i - 1.0f, i - 1.0f));
ImVec2 size = ImVec2(32.0f, 32.0f); // Size of the image we want to make visible
ImVec2 uv0 = ImVec2(0.0f, 0.0f); // UV coordinates for lower-left
ImVec2 uv1 = ImVec2(32.0f / my_tex_w, 32.0f / my_tex_h); // UV coordinates for (32,32) in our texture
ImVec4 bg_col = ImVec4(0.0f, 0.0f, 0.0f, 1.0f); // Black background
ImVec4 tint_col = ImVec4(1.0f, 1.0f, 1.0f, 1.0f); // No tint
if (ImGui::ImageButton("", my_tex_id, size, uv0, uv1, bg_col, tint_col))
pressed_count += 1;
if (i > 0)
ImGui::PopStyleVar();
ImGui::PopID();
ImGui::SameLine();
}
ImGui::NewLine();
ImGui::Text("Pressed %d times.", pressed_count);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Combo");
if (ImGui::TreeNode("Combo"))
{
// Combo Boxes are also called "Dropdown" in other systems
// Expose flags as checkbox for the demo
static ImGuiComboFlags flags = 0;
ImGui::CheckboxFlags("ImGuiComboFlags_PopupAlignLeft", &flags, ImGuiComboFlags_PopupAlignLeft);
ImGui::SameLine(); HelpMarker("Only makes a difference if the popup is larger than the combo");
if (ImGui::CheckboxFlags("ImGuiComboFlags_NoArrowButton", &flags, ImGuiComboFlags_NoArrowButton))
flags &= ~ImGuiComboFlags_NoPreview; // Clear the other flag, as we cannot combine both
if (ImGui::CheckboxFlags("ImGuiComboFlags_NoPreview", &flags, ImGuiComboFlags_NoPreview))
flags &= ~ImGuiComboFlags_NoArrowButton; // Clear the other flag, as we cannot combine both
// Using the generic BeginCombo() API, you have full control over how to display the combo contents.
// (your selection data could be an index, a pointer to the object, an id for the object, a flag intrusively
// stored in the object itself, etc.)
const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIII", "JJJJ", "KKKK", "LLLLLLL", "MMMM", "OOOOOOO" };
static int item_current_idx = 0; // Here we store our selection data as an index.
const char* combo_preview_value = items[item_current_idx]; // Pass in the preview value visible before opening the combo (it could be anything)
if (ImGui::BeginCombo("combo 1", combo_preview_value, flags))
{
for (int n = 0; n < IM_ARRAYSIZE(items); n++)
{
const bool is_selected = (item_current_idx == n);
if (ImGui::Selectable(items[n], is_selected))
item_current_idx = n;
// Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
if (is_selected)
ImGui::SetItemDefaultFocus();
}
ImGui::EndCombo();
}
// Simplified one-liner Combo() API, using values packed in a single constant string
// This is a convenience for when the selection set is small and known at compile-time.
static int item_current_2 = 0;
ImGui::Combo("combo 2 (one-liner)", &item_current_2, "aaaa\0bbbb\0cccc\0dddd\0eeee\0\0");
// Simplified one-liner Combo() using an array of const char*
// This is not very useful (may obsolete): prefer using BeginCombo()/EndCombo() for full control.
static int item_current_3 = -1; // If the selection isn't within 0..count, Combo won't display a preview
ImGui::Combo("combo 3 (array)", &item_current_3, items, IM_ARRAYSIZE(items));
// Simplified one-liner Combo() using an accessor function
struct Funcs { static bool ItemGetter(void* data, int n, const char** out_str) { *out_str = ((const char**)data)[n]; return true; } };
static int item_current_4 = 0;
ImGui::Combo("combo 4 (function)", &item_current_4, &Funcs::ItemGetter, items, IM_ARRAYSIZE(items));
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/List Boxes");
if (ImGui::TreeNode("List boxes"))
{
// Using the generic BeginListBox() API, you have full control over how to display the combo contents.
// (your selection data could be an index, a pointer to the object, an id for the object, a flag intrusively
// stored in the object itself, etc.)
const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIII", "JJJJ", "KKKK", "LLLLLLL", "MMMM", "OOOOOOO" };
static int item_current_idx = 0; // Here we store our selection data as an index.
if (ImGui::BeginListBox("listbox 1"))
{
for (int n = 0; n < IM_ARRAYSIZE(items); n++)
{
const bool is_selected = (item_current_idx == n);
if (ImGui::Selectable(items[n], is_selected))
item_current_idx = n;
// Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
if (is_selected)
ImGui::SetItemDefaultFocus();
}
ImGui::EndListBox();
}
// Custom size: use all width, 5 items tall
ImGui::Text("Full-width:");
if (ImGui::BeginListBox("##listbox 2", ImVec2(-FLT_MIN, 5 * ImGui::GetTextLineHeightWithSpacing())))
{
for (int n = 0; n < IM_ARRAYSIZE(items); n++)
{
const bool is_selected = (item_current_idx == n);
if (ImGui::Selectable(items[n], is_selected))
item_current_idx = n;
// Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
if (is_selected)
ImGui::SetItemDefaultFocus();
}
ImGui::EndListBox();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables");
if (ImGui::TreeNode("Selectables"))
{
// Selectable() has 2 overloads:
// - The one taking "bool selected" as a read-only selection information.
// When Selectable() has been clicked it returns true and you can alter selection state accordingly.
// - The one taking "bool* p_selected" as a read-write selection information (convenient in some cases)
// The earlier is more flexible, as in real application your selection may be stored in many different ways
// and not necessarily inside a bool value (e.g. in flags within objects, as an external list, etc).
IMGUI_DEMO_MARKER("Widgets/Selectables/Basic");
if (ImGui::TreeNode("Basic"))
{
static bool selection[5] = { false, true, false, false, false };
ImGui::Selectable("1. I am selectable", &selection[0]);
ImGui::Selectable("2. I am selectable", &selection[1]);
ImGui::Text("(I am not selectable)");
ImGui::Selectable("4. I am selectable", &selection[3]);
if (ImGui::Selectable("5. I am double clickable", selection[4], ImGuiSelectableFlags_AllowDoubleClick))
if (ImGui::IsMouseDoubleClicked(0))
selection[4] = !selection[4];
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables/Single Selection");
if (ImGui::TreeNode("Selection State: Single Selection"))
{
static int selected = -1;
for (int n = 0; n < 5; n++)
{
char buf[32];
sprintf(buf, "Object %d", n);
if (ImGui::Selectable(buf, selected == n))
selected = n;
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables/Multiple Selection");
if (ImGui::TreeNode("Selection State: Multiple Selection"))
{
HelpMarker("Hold CTRL and click to select multiple items.");
static bool selection[5] = { false, false, false, false, false };
for (int n = 0; n < 5; n++)
{
char buf[32];
sprintf(buf, "Object %d", n);
if (ImGui::Selectable(buf, selection[n]))
{
if (!ImGui::GetIO().KeyCtrl) // Clear selection when CTRL is not held
memset(selection, 0, sizeof(selection));
selection[n] ^= 1;
}
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables/Rendering more text into the same line");
if (ImGui::TreeNode("Rendering more text into the same line"))
{
// Using the Selectable() override that takes "bool* p_selected" parameter,
// this function toggle your bool value automatically.
static bool selected[3] = { false, false, false };
ImGui::Selectable("main.c", &selected[0]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
ImGui::Selectable("Hello.cpp", &selected[1]); ImGui::SameLine(300); ImGui::Text("12,345 bytes");
ImGui::Selectable("Hello.h", &selected[2]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables/In columns");
if (ImGui::TreeNode("In columns"))
{
static bool selected[10] = {};
if (ImGui::BeginTable("split1", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings | ImGuiTableFlags_Borders))
{
for (int i = 0; i < 10; i++)
{
char label[32];
sprintf(label, "Item %d", i);
ImGui::TableNextColumn();
ImGui::Selectable(label, &selected[i]); // FIXME-TABLE: Selection overlap
}
ImGui::EndTable();
}
ImGui::Spacing();
if (ImGui::BeginTable("split2", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings | ImGuiTableFlags_Borders))
{
for (int i = 0; i < 10; i++)
{
char label[32];
sprintf(label, "Item %d", i);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Selectable(label, &selected[i], ImGuiSelectableFlags_SpanAllColumns);
ImGui::TableNextColumn();
ImGui::Text("Some other contents");
ImGui::TableNextColumn();
ImGui::Text("123456");
}
ImGui::EndTable();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables/Grid");
if (ImGui::TreeNode("Grid"))
{
static char selected[4][4] = { { 1, 0, 0, 0 }, { 0, 1, 0, 0 }, { 0, 0, 1, 0 }, { 0, 0, 0, 1 } };
// Add in a bit of silly fun...
const float time = (float)ImGui::GetTime();
const bool winning_state = memchr(selected, 0, sizeof(selected)) == NULL; // If all cells are selected...
if (winning_state)
ImGui::PushStyleVar(ImGuiStyleVar_SelectableTextAlign, ImVec2(0.5f + 0.5f * cosf(time * 2.0f), 0.5f + 0.5f * sinf(time * 3.0f)));
for (int y = 0; y < 4; y++)
for (int x = 0; x < 4; x++)
{
if (x > 0)
ImGui::SameLine();
ImGui::PushID(y * 4 + x);
if (ImGui::Selectable("Sailor", selected[y][x] != 0, 0, ImVec2(50, 50)))
{
// Toggle clicked cell + toggle neighbors
selected[y][x] ^= 1;
if (x > 0) { selected[y][x - 1] ^= 1; }
if (x < 3) { selected[y][x + 1] ^= 1; }
if (y > 0) { selected[y - 1][x] ^= 1; }
if (y < 3) { selected[y + 1][x] ^= 1; }
}
ImGui::PopID();
}
if (winning_state)
ImGui::PopStyleVar();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Selectables/Alignment");
if (ImGui::TreeNode("Alignment"))
{
HelpMarker(
"By default, Selectables uses style.SelectableTextAlign but it can be overridden on a per-item "
"basis using PushStyleVar(). You'll probably want to always keep your default situation to "
"left-align otherwise it becomes difficult to layout multiple items on a same line");
static bool selected[3 * 3] = { true, false, true, false, true, false, true, false, true };
for (int y = 0; y < 3; y++)
{
for (int x = 0; x < 3; x++)
{
ImVec2 alignment = ImVec2((float)x / 2.0f, (float)y / 2.0f);
char name[32];
sprintf(name, "(%.1f,%.1f)", alignment.x, alignment.y);
if (x > 0) ImGui::SameLine();
ImGui::PushStyleVar(ImGuiStyleVar_SelectableTextAlign, alignment);
ImGui::Selectable(name, &selected[3 * y + x], ImGuiSelectableFlags_None, ImVec2(80, 80));
ImGui::PopStyleVar();
}
}
ImGui::TreePop();
}
ImGui::TreePop();
}
// To wire InputText() with std::string or any other custom string type,
// see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
IMGUI_DEMO_MARKER("Widgets/Text Input");
if (ImGui::TreeNode("Text Input"))
{
IMGUI_DEMO_MARKER("Widgets/Text Input/Multi-line Text Input");
if (ImGui::TreeNode("Multi-line Text Input"))
{
// Note: we are using a fixed-sized buffer for simplicity here. See ImGuiInputTextFlags_CallbackResize
// and the code in misc/cpp/imgui_stdlib.h for how to setup InputText() for dynamically resizing strings.
static char text[1024 * 16] =
"/*\n"
" The Pentium F00F bug, shorthand for F0 0F C7 C8,\n"
" the hexadecimal encoding of one offending instruction,\n"
" more formally, the invalid operand with locked CMPXCHG8B\n"
" instruction bug, is a design flaw in the majority of\n"
" Intel Pentium, Pentium MMX, and Pentium OverDrive\n"
" processors (all in the P5 microarchitecture).\n"
"*/\n\n"
"label:\n"
"\tlock cmpxchg8b eax\n";
static ImGuiInputTextFlags flags = ImGuiInputTextFlags_AllowTabInput;
HelpMarker("You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputTextMultiline() to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example. (This is not demonstrated in imgui_demo.cpp because we don't want to include <string> in here)");
ImGui::CheckboxFlags("ImGuiInputTextFlags_ReadOnly", &flags, ImGuiInputTextFlags_ReadOnly);
ImGui::CheckboxFlags("ImGuiInputTextFlags_AllowTabInput", &flags, ImGuiInputTextFlags_AllowTabInput);
ImGui::CheckboxFlags("ImGuiInputTextFlags_CtrlEnterForNewLine", &flags, ImGuiInputTextFlags_CtrlEnterForNewLine);
ImGui::InputTextMultiline("##source", text, IM_ARRAYSIZE(text), ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() * 16), flags);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text Input/Filtered Text Input");
if (ImGui::TreeNode("Filtered Text Input"))
{
struct TextFilters
{
// Return 0 (pass) if the character is 'i' or 'm' or 'g' or 'u' or 'i'
static int FilterImGuiLetters(ImGuiInputTextCallbackData* data)
{
if (data->EventChar < 256 && strchr("imgui", (char)data->EventChar))
return 0;
return 1;
}
};
static char buf1[64] = ""; ImGui::InputText("default", buf1, 64);
static char buf2[64] = ""; ImGui::InputText("decimal", buf2, 64, ImGuiInputTextFlags_CharsDecimal);
static char buf3[64] = ""; ImGui::InputText("hexadecimal", buf3, 64, ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase);
static char buf4[64] = ""; ImGui::InputText("uppercase", buf4, 64, ImGuiInputTextFlags_CharsUppercase);
static char buf5[64] = ""; ImGui::InputText("no blank", buf5, 64, ImGuiInputTextFlags_CharsNoBlank);
static char buf6[64] = ""; ImGui::InputText("\"imgui\" letters", buf6, 64, ImGuiInputTextFlags_CallbackCharFilter, TextFilters::FilterImGuiLetters);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text Input/Password input");
if (ImGui::TreeNode("Password Input"))
{
static char password[64] = "password123";
ImGui::InputText("password", password, IM_ARRAYSIZE(password), ImGuiInputTextFlags_Password);
ImGui::SameLine(); HelpMarker("Display all characters as '*'.\nDisable clipboard cut and copy.\nDisable logging.\n");
ImGui::InputTextWithHint("password (w/ hint)", "<password>", password, IM_ARRAYSIZE(password), ImGuiInputTextFlags_Password);
ImGui::InputText("password (clear)", password, IM_ARRAYSIZE(password));
ImGui::TreePop();
}
if (ImGui::TreeNode("Completion, History, Edit Callbacks"))
{
struct Funcs
{
static int MyCallback(ImGuiInputTextCallbackData* data)
{
if (data->EventFlag == ImGuiInputTextFlags_CallbackCompletion)
{
data->InsertChars(data->CursorPos, "..");
}
else if (data->EventFlag == ImGuiInputTextFlags_CallbackHistory)
{
if (data->EventKey == ImGuiKey_UpArrow)
{
data->DeleteChars(0, data->BufTextLen);
data->InsertChars(0, "Pressed Up!");
data->SelectAll();
}
else if (data->EventKey == ImGuiKey_DownArrow)
{
data->DeleteChars(0, data->BufTextLen);
data->InsertChars(0, "Pressed Down!");
data->SelectAll();
}
}
else if (data->EventFlag == ImGuiInputTextFlags_CallbackEdit)
{
// Toggle casing of first character
char c = data->Buf[0];
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) data->Buf[0] ^= 32;
data->BufDirty = true;
// Increment a counter
int* p_int = (int*)data->UserData;
*p_int = *p_int + 1;
}
return 0;
}
};
static char buf1[64];
ImGui::InputText("Completion", buf1, 64, ImGuiInputTextFlags_CallbackCompletion, Funcs::MyCallback);
ImGui::SameLine(); HelpMarker("Here we append \"..\" each time Tab is pressed. See 'Examples>Console' for a more meaningful demonstration of using this callback.");
static char buf2[64];
ImGui::InputText("History", buf2, 64, ImGuiInputTextFlags_CallbackHistory, Funcs::MyCallback);
ImGui::SameLine(); HelpMarker("Here we replace and select text each time Up/Down are pressed. See 'Examples>Console' for a more meaningful demonstration of using this callback.");
static char buf3[64];
static int edit_count = 0;
ImGui::InputText("Edit", buf3, 64, ImGuiInputTextFlags_CallbackEdit, Funcs::MyCallback, (void*)&edit_count);
ImGui::SameLine(); HelpMarker("Here we toggle the casing of the first character on every edit + count edits.");
ImGui::SameLine(); ImGui::Text("(%d)", edit_count);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text Input/Resize Callback");
if (ImGui::TreeNode("Resize Callback"))
{
// To wire InputText() with std::string or any other custom string type,
// you can use the ImGuiInputTextFlags_CallbackResize flag + create a custom ImGui::InputText() wrapper
// using your preferred type. See misc/cpp/imgui_stdlib.h for an implementation of this using std::string.
HelpMarker(
"Using ImGuiInputTextFlags_CallbackResize to wire your custom string type to InputText().\n\n"
"See misc/cpp/imgui_stdlib.h for an implementation of this for std::string.");
struct Funcs
{
static int MyResizeCallback(ImGuiInputTextCallbackData* data)
{
if (data->EventFlag == ImGuiInputTextFlags_CallbackResize)
{
ImVector<char>* my_str = (ImVector<char>*)data->UserData;
IM_ASSERT(my_str->begin() == data->Buf);
my_str->resize(data->BufSize); // NB: On resizing calls, generally data->BufSize == data->BufTextLen + 1
data->Buf = my_str->begin();
}
return 0;
}
// Note: Because ImGui:: is a namespace you would typically add your own function into the namespace.
// For example, you code may declare a function 'ImGui::InputText(const char* label, MyString* my_str)'
static bool MyInputTextMultiline(const char* label, ImVector<char>* my_str, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0)
{
IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0);
return ImGui::InputTextMultiline(label, my_str->begin(), (size_t)my_str->size(), size, flags | ImGuiInputTextFlags_CallbackResize, Funcs::MyResizeCallback, (void*)my_str);
}
};
// For this demo we are using ImVector as a string container.
// Note that because we need to store a terminating zero character, our size/capacity are 1 more
// than usually reported by a typical string class.
static ImVector<char> my_str;
if (my_str.empty())
my_str.push_back(0);
Funcs::MyInputTextMultiline("##MyStr", &my_str, ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() * 16));
ImGui::Text("Data: %p\nSize: %d\nCapacity: %d", (void*)my_str.begin(), my_str.size(), my_str.capacity());
ImGui::TreePop();
}
ImGui::TreePop();
}
// Tabs
IMGUI_DEMO_MARKER("Widgets/Tabs");
if (ImGui::TreeNode("Tabs"))
{
IMGUI_DEMO_MARKER("Widgets/Tabs/Basic");
if (ImGui::TreeNode("Basic"))
{
ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_None;
if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
{
if (ImGui::BeginTabItem("Avocado"))
{
ImGui::Text("This is the Avocado tab!\nblah blah blah blah blah");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Broccoli"))
{
ImGui::Text("This is the Broccoli tab!\nblah blah blah blah blah");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Cucumber"))
{
ImGui::Text("This is the Cucumber tab!\nblah blah blah blah blah");
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::Separator();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Tabs/Advanced & Close Button");
if (ImGui::TreeNode("Advanced & Close Button"))
{
// Expose a couple of the available flags. In most cases you may just call BeginTabBar() with no flags (0).
static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_Reorderable;
ImGui::CheckboxFlags("ImGuiTabBarFlags_Reorderable", &tab_bar_flags, ImGuiTabBarFlags_Reorderable);
ImGui::CheckboxFlags("ImGuiTabBarFlags_AutoSelectNewTabs", &tab_bar_flags, ImGuiTabBarFlags_AutoSelectNewTabs);
ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
ImGui::CheckboxFlags("ImGuiTabBarFlags_NoCloseWithMiddleMouseButton", &tab_bar_flags, ImGuiTabBarFlags_NoCloseWithMiddleMouseButton);
if ((tab_bar_flags & ImGuiTabBarFlags_FittingPolicyMask_) == 0)
tab_bar_flags |= ImGuiTabBarFlags_FittingPolicyDefault_;
if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
// Tab Bar
const char* names[4] = { "Artichoke", "Beetroot", "Celery", "Daikon" };
static bool opened[4] = { true, true, true, true }; // Persistent user state
for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
{
if (n > 0) { ImGui::SameLine(); }
ImGui::Checkbox(names[n], &opened[n]);
}
// Passing a bool* to BeginTabItem() is similar to passing one to Begin():
// the underlying bool will be set to false when the tab is closed.
if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
{
for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
if (opened[n] && ImGui::BeginTabItem(names[n], &opened[n], ImGuiTabItemFlags_None))
{
ImGui::Text("This is the %s tab!", names[n]);
if (n & 1)
ImGui::Text("I am an odd tab.");
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::Separator();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Tabs/TabItemButton & Leading-Trailing flags");
if (ImGui::TreeNode("TabItemButton & Leading/Trailing flags"))
{
static ImVector<int> active_tabs;
static int next_tab_id = 0;
if (next_tab_id == 0) // Initialize with some default tabs
for (int i = 0; i < 3; i++)
active_tabs.push_back(next_tab_id++);
// TabItemButton() and Leading/Trailing flags are distinct features which we will demo together.
// (It is possible to submit regular tabs with Leading/Trailing flags, or TabItemButton tabs without Leading/Trailing flags...
// but they tend to make more sense together)
static bool show_leading_button = true;
static bool show_trailing_button = true;
ImGui::Checkbox("Show Leading TabItemButton()", &show_leading_button);
ImGui::Checkbox("Show Trailing TabItemButton()", &show_trailing_button);
// Expose some other flags which are useful to showcase how they interact with Leading/Trailing tabs
static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_AutoSelectNewTabs | ImGuiTabBarFlags_Reorderable | ImGuiTabBarFlags_FittingPolicyResizeDown;
ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
{
// Demo a Leading TabItemButton(): click the "?" button to open a menu
if (show_leading_button)
if (ImGui::TabItemButton("?", ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_NoTooltip))
ImGui::OpenPopup("MyHelpMenu");
if (ImGui::BeginPopup("MyHelpMenu"))
{
ImGui::Selectable("Hello!");
ImGui::EndPopup();
}
// Demo Trailing Tabs: click the "+" button to add a new tab (in your app you may want to use a font icon instead of the "+")
// Note that we submit it before the regular tabs, but because of the ImGuiTabItemFlags_Trailing flag it will always appear at the end.
if (show_trailing_button)
if (ImGui::TabItemButton("+", ImGuiTabItemFlags_Trailing | ImGuiTabItemFlags_NoTooltip))
active_tabs.push_back(next_tab_id++); // Add new tab
// Submit our regular tabs
for (int n = 0; n < active_tabs.Size; )
{
bool open = true;
char name[16];
snprintf(name, IM_ARRAYSIZE(name), "%04d", active_tabs[n]);
if (ImGui::BeginTabItem(name, &open, ImGuiTabItemFlags_None))
{
ImGui::Text("This is the %s tab!", name);
ImGui::EndTabItem();
}
if (!open)
active_tabs.erase(active_tabs.Data + n);
else
n++;
}
ImGui::EndTabBar();
}
ImGui::Separator();
ImGui::TreePop();
}
ImGui::TreePop();
}
// Plot/Graph widgets are not very good.
// Consider using a third-party library such as ImPlot: https://github.com/epezent/implot
// (see others https://github.com/ocornut/imgui/wiki/Useful-Extensions)
IMGUI_DEMO_MARKER("Widgets/Plotting");
if (ImGui::TreeNode("Plotting"))
{
static bool animate = true;
ImGui::Checkbox("Animate", &animate);
// Plot as lines and plot as histogram
IMGUI_DEMO_MARKER("Widgets/Plotting/PlotLines, PlotHistogram");
static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
ImGui::PlotLines("Frame Times", arr, IM_ARRAYSIZE(arr));
ImGui::PlotHistogram("Histogram", arr, IM_ARRAYSIZE(arr), 0, NULL, 0.0f, 1.0f, ImVec2(0, 80.0f));
// Fill an array of contiguous float values to plot
// Tip: If your float aren't contiguous but part of a structure, you can pass a pointer to your first float
// and the sizeof() of your structure in the "stride" parameter.
static float values[90] = {};
static int values_offset = 0;
static double refresh_time = 0.0;
if (!animate || refresh_time == 0.0)
refresh_time = ImGui::GetTime();
while (refresh_time < ImGui::GetTime()) // Create data at fixed 60 Hz rate for the demo
{
static float phase = 0.0f;
values[values_offset] = cosf(phase);
values_offset = (values_offset + 1) % IM_ARRAYSIZE(values);
phase += 0.10f * values_offset;
refresh_time += 1.0f / 60.0f;
}
// Plots can display overlay texts
// (in this example, we will display an average value)
{
float average = 0.0f;
for (int n = 0; n < IM_ARRAYSIZE(values); n++)
average += values[n];
average /= (float)IM_ARRAYSIZE(values);
char overlay[32];
sprintf(overlay, "avg %f", average);
ImGui::PlotLines("Lines", values, IM_ARRAYSIZE(values), values_offset, overlay, -1.0f, 1.0f, ImVec2(0, 80.0f));
}
// Use functions to generate output
// FIXME: This is actually VERY awkward because current plot API only pass in indices.
// We probably want an API passing floats and user provide sample rate/count.
struct Funcs
{
static float Sin(void*, int i) { return sinf(i * 0.1f); }
static float Saw(void*, int i) { return (i & 1) ? 1.0f : -1.0f; }
};
static int func_type = 0, display_count = 70;
ImGui::SeparatorText("Functions");
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
ImGui::Combo("func", &func_type, "Sin\0Saw\0");
ImGui::SameLine();
ImGui::SliderInt("Sample count", &display_count, 1, 400);
float (*func)(void*, int) = (func_type == 0) ? Funcs::Sin : Funcs::Saw;
ImGui::PlotLines("Lines", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0, 80));
ImGui::PlotHistogram("Histogram", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0, 80));
ImGui::Separator();
// Animate a simple progress bar
IMGUI_DEMO_MARKER("Widgets/Plotting/ProgressBar");
static float progress = 0.0f, progress_dir = 1.0f;
if (animate)
{
progress += progress_dir * 0.4f * ImGui::GetIO().DeltaTime;
if (progress >= +1.1f) { progress = +1.1f; progress_dir *= -1.0f; }
if (progress <= -0.1f) { progress = -0.1f; progress_dir *= -1.0f; }
}
// Typically we would use ImVec2(-1.0f,0.0f) or ImVec2(-FLT_MIN,0.0f) to use all available width,
// or ImVec2(width,0.0f) for a specified width. ImVec2(0.0f,0.0f) uses ItemWidth.
ImGui::ProgressBar(progress, ImVec2(0.0f, 0.0f));
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Text("Progress Bar");
float progress_saturated = IM_CLAMP(progress, 0.0f, 1.0f);
char buf[32];
sprintf(buf, "%d/%d", (int)(progress_saturated * 1753), 1753);
ImGui::ProgressBar(progress, ImVec2(0.f, 0.f), buf);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Color");
if (ImGui::TreeNode("Color/Picker Widgets"))
{
static ImVec4 color = ImVec4(114.0f / 255.0f, 144.0f / 255.0f, 154.0f / 255.0f, 200.0f / 255.0f);
static bool alpha_preview = true;
static bool alpha_half_preview = false;
static bool drag_and_drop = true;
static bool options_menu = true;
static bool hdr = false;
ImGui::SeparatorText("Options");
ImGui::Checkbox("With Alpha Preview", &alpha_preview);
ImGui::Checkbox("With Half Alpha Preview", &alpha_half_preview);
ImGui::Checkbox("With Drag and Drop", &drag_and_drop);
ImGui::Checkbox("With Options Menu", &options_menu); ImGui::SameLine(); HelpMarker("Right-click on the individual color widget to show options.");
ImGui::Checkbox("With HDR", &hdr); ImGui::SameLine(); HelpMarker("Currently all this does is to lift the 0..1 limits on dragging widgets.");
ImGuiColorEditFlags misc_flags = (hdr ? ImGuiColorEditFlags_HDR : 0) | (drag_and_drop ? 0 : ImGuiColorEditFlags_NoDragDrop) | (alpha_half_preview ? ImGuiColorEditFlags_AlphaPreviewHalf : (alpha_preview ? ImGuiColorEditFlags_AlphaPreview : 0)) | (options_menu ? 0 : ImGuiColorEditFlags_NoOptions);
IMGUI_DEMO_MARKER("Widgets/Color/ColorEdit");
ImGui::SeparatorText("Inline color editor");
ImGui::Text("Color widget:");
ImGui::SameLine(); HelpMarker(
"Click on the color square to open a color picker.\n"
"CTRL+click on individual component to input value.\n");
ImGui::ColorEdit3("MyColor##1", (float*)&color, misc_flags);
IMGUI_DEMO_MARKER("Widgets/Color/ColorEdit (HSV, with Alpha)");
ImGui::Text("Color widget HSV with Alpha:");
ImGui::ColorEdit4("MyColor##2", (float*)&color, ImGuiColorEditFlags_DisplayHSV | misc_flags);
IMGUI_DEMO_MARKER("Widgets/Color/ColorEdit (float display)");
ImGui::Text("Color widget with Float Display:");
ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | misc_flags);
IMGUI_DEMO_MARKER("Widgets/Color/ColorButton (with Picker)");
ImGui::Text("Color button with Picker:");
ImGui::SameLine(); HelpMarker(
"With the ImGuiColorEditFlags_NoInputs flag you can hide all the slider/text inputs.\n"
"With the ImGuiColorEditFlags_NoLabel flag you can pass a non-empty label which will only "
"be used for the tooltip and picker popup.");
ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | misc_flags);
IMGUI_DEMO_MARKER("Widgets/Color/ColorButton (with custom Picker popup)");
ImGui::Text("Color button with Custom Picker Popup:");
// Generate a default palette. The palette will persist and can be edited.
static bool saved_palette_init = true;
static ImVec4 saved_palette[32] = {};
if (saved_palette_init)
{
for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++)
{
ImGui::ColorConvertHSVtoRGB(n / 31.0f, 0.8f, 0.8f,
saved_palette[n].x, saved_palette[n].y, saved_palette[n].z);
saved_palette[n].w = 1.0f; // Alpha
}
saved_palette_init = false;
}
static ImVec4 backup_color;
bool open_popup = ImGui::ColorButton("MyColor##3b", color, misc_flags);
ImGui::SameLine(0, ImGui::GetStyle().ItemInnerSpacing.x);
open_popup |= ImGui::Button("Palette");
if (open_popup)
{
ImGui::OpenPopup("mypicker");
backup_color = color;
}
if (ImGui::BeginPopup("mypicker"))
{
ImGui::Text("MY CUSTOM COLOR PICKER WITH AN AMAZING PALETTE!");
ImGui::Separator();
ImGui::ColorPicker4("##picker", (float*)&color, misc_flags | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoSmallPreview);
ImGui::SameLine();
ImGui::BeginGroup(); // Lock X position
ImGui::Text("Current");
ImGui::ColorButton("##current", color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(60, 40));
ImGui::Text("Previous");
if (ImGui::ColorButton("##previous", backup_color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(60, 40)))
color = backup_color;
ImGui::Separator();
ImGui::Text("Palette");
for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++)
{
ImGui::PushID(n);
if ((n % 8) != 0)
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemSpacing.y);
ImGuiColorEditFlags palette_button_flags = ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoTooltip;
if (ImGui::ColorButton("##palette", saved_palette[n], palette_button_flags, ImVec2(20, 20)))
color = ImVec4(saved_palette[n].x, saved_palette[n].y, saved_palette[n].z, color.w); // Preserve alpha!
// Allow user to drop colors into each palette entry. Note that ColorButton() is already a
// drag source by default, unless specifying the ImGuiColorEditFlags_NoDragDrop flag.
if (ImGui::BeginDragDropTarget())
{
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 3);
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 4);
ImGui::EndDragDropTarget();
}
ImGui::PopID();
}
ImGui::EndGroup();
ImGui::EndPopup();
}
IMGUI_DEMO_MARKER("Widgets/Color/ColorButton (simple)");
ImGui::Text("Color button only:");
static bool no_border = false;
ImGui::Checkbox("ImGuiColorEditFlags_NoBorder", &no_border);
ImGui::ColorButton("MyColor##3c", *(ImVec4*)&color, misc_flags | (no_border ? ImGuiColorEditFlags_NoBorder : 0), ImVec2(80, 80));
IMGUI_DEMO_MARKER("Widgets/Color/ColorPicker");
ImGui::SeparatorText("Color picker");
static bool alpha = true;
static bool alpha_bar = true;
static bool side_preview = true;
static bool ref_color = false;
static ImVec4 ref_color_v(1.0f, 0.0f, 1.0f, 0.5f);
static int display_mode = 0;
static int picker_mode = 0;
ImGui::Checkbox("With Alpha", &alpha);
ImGui::Checkbox("With Alpha Bar", &alpha_bar);
ImGui::Checkbox("With Side Preview", &side_preview);
if (side_preview)
{
ImGui::SameLine();
ImGui::Checkbox("With Ref Color", &ref_color);
if (ref_color)
{
ImGui::SameLine();
ImGui::ColorEdit4("##RefColor", &ref_color_v.x, ImGuiColorEditFlags_NoInputs | misc_flags);
}
}
ImGui::Combo("Display Mode", &display_mode, "Auto/Current\0None\0RGB Only\0HSV Only\0Hex Only\0");
ImGui::SameLine(); HelpMarker(
"ColorEdit defaults to displaying RGB inputs if you don't specify a display mode, "
"but the user can change it with a right-click on those inputs.\n\nColorPicker defaults to displaying RGB+HSV+Hex "
"if you don't specify a display mode.\n\nYou can change the defaults using SetColorEditOptions().");
ImGui::SameLine(); HelpMarker("When not specified explicitly (Auto/Current mode), user can right-click the picker to change mode.");
ImGuiColorEditFlags flags = misc_flags;
if (!alpha) flags |= ImGuiColorEditFlags_NoAlpha; // This is by default if you call ColorPicker3() instead of ColorPicker4()
if (alpha_bar) flags |= ImGuiColorEditFlags_AlphaBar;
if (!side_preview) flags |= ImGuiColorEditFlags_NoSidePreview;
if (picker_mode == 1) flags |= ImGuiColorEditFlags_PickerHueBar;
if (picker_mode == 2) flags |= ImGuiColorEditFlags_PickerHueWheel;
if (display_mode == 1) flags |= ImGuiColorEditFlags_NoInputs; // Disable all RGB/HSV/Hex displays
if (display_mode == 2) flags |= ImGuiColorEditFlags_DisplayRGB; // Override display mode
if (display_mode == 3) flags |= ImGuiColorEditFlags_DisplayHSV;
if (display_mode == 4) flags |= ImGuiColorEditFlags_DisplayHex;
ImGui::ColorPicker4("MyColor##4", (float*)&color, flags, ref_color ? &ref_color_v.x : NULL);
ImGui::Text("Set defaults in code:");
ImGui::SameLine(); HelpMarker(
"SetColorEditOptions() is designed to allow you to set boot-time default.\n"
"We don't have Push/Pop functions because you can force options on a per-widget basis if needed,"
"and the user can change non-forced ones with the options menu.\nWe don't have a getter to avoid"
"encouraging you to persistently save values that aren't forward-compatible.");
if (ImGui::Button("Default: Uint8 + HSV + Hue Bar"))
ImGui::SetColorEditOptions(ImGuiColorEditFlags_Uint8 | ImGuiColorEditFlags_DisplayHSV | ImGuiColorEditFlags_PickerHueBar);
if (ImGui::Button("Default: Float + HDR + Hue Wheel"))
ImGui::SetColorEditOptions(ImGuiColorEditFlags_Float | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_PickerHueWheel);
// Always both a small version of both types of pickers (to make it more visible in the demo to people who are skimming quickly through it)
ImGui::Text("Both types:");
float w = (ImGui::GetContentRegionAvail().x - ImGui::GetStyle().ItemSpacing.y) * 0.40f;
ImGui::SetNextItemWidth(w);
ImGui::ColorPicker3("##MyColor##5", (float*)&color, ImGuiColorEditFlags_PickerHueBar | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoAlpha);
ImGui::SameLine();
ImGui::SetNextItemWidth(w);
ImGui::ColorPicker3("##MyColor##6", (float*)&color, ImGuiColorEditFlags_PickerHueWheel | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoAlpha);
// HSV encoded support (to avoid RGB<>HSV round trips and singularities when S==0 or V==0)
static ImVec4 color_hsv(0.23f, 1.0f, 1.0f, 1.0f); // Stored as HSV!
ImGui::Spacing();
ImGui::Text("HSV encoded colors");
ImGui::SameLine(); HelpMarker(
"By default, colors are given to ColorEdit and ColorPicker in RGB, but ImGuiColorEditFlags_InputHSV"
"allows you to store colors as HSV and pass them to ColorEdit and ColorPicker as HSV. This comes with the"
"added benefit that you can manipulate hue values with the picker even when saturation or value are zero.");
ImGui::Text("Color widget with InputHSV:");
ImGui::ColorEdit4("HSV shown as RGB##1", (float*)&color_hsv, ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_InputHSV | ImGuiColorEditFlags_Float);
ImGui::ColorEdit4("HSV shown as HSV##1", (float*)&color_hsv, ImGuiColorEditFlags_DisplayHSV | ImGuiColorEditFlags_InputHSV | ImGuiColorEditFlags_Float);
ImGui::DragFloat4("Raw HSV values", (float*)&color_hsv, 0.01f, 0.0f, 1.0f);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Drag and Slider Flags");
if (ImGui::TreeNode("Drag/Slider Flags"))
{
// Demonstrate using advanced flags for DragXXX and SliderXXX functions. Note that the flags are the same!
static ImGuiSliderFlags flags = ImGuiSliderFlags_None;
ImGui::CheckboxFlags("ImGuiSliderFlags_AlwaysClamp", &flags, ImGuiSliderFlags_AlwaysClamp);
ImGui::SameLine(); HelpMarker("Always clamp value to min/max bounds (if any) when input manually with CTRL+Click.");
ImGui::CheckboxFlags("ImGuiSliderFlags_Logarithmic", &flags, ImGuiSliderFlags_Logarithmic);
ImGui::SameLine(); HelpMarker("Enable logarithmic editing (more precision for small values).");
ImGui::CheckboxFlags("ImGuiSliderFlags_NoRoundToFormat", &flags, ImGuiSliderFlags_NoRoundToFormat);
ImGui::SameLine(); HelpMarker("Disable rounding underlying value to match precision of the format string (e.g. %.3f values are rounded to those 3 digits).");
ImGui::CheckboxFlags("ImGuiSliderFlags_NoInput", &flags, ImGuiSliderFlags_NoInput);
ImGui::SameLine(); HelpMarker("Disable CTRL+Click or Enter key allowing to input text directly into the widget.");
// Drags
static float drag_f = 0.5f;
static int drag_i = 50;
ImGui::Text("Underlying float value: %f", drag_f);
ImGui::DragFloat("DragFloat (0 -> 1)", &drag_f, 0.005f, 0.0f, 1.0f, "%.3f", flags);
ImGui::DragFloat("DragFloat (0 -> +inf)", &drag_f, 0.005f, 0.0f, FLT_MAX, "%.3f", flags);
ImGui::DragFloat("DragFloat (-inf -> 1)", &drag_f, 0.005f, -FLT_MAX, 1.0f, "%.3f", flags);
ImGui::DragFloat("DragFloat (-inf -> +inf)", &drag_f, 0.005f, -FLT_MAX, +FLT_MAX, "%.3f", flags);
ImGui::DragInt("DragInt (0 -> 100)", &drag_i, 0.5f, 0, 100, "%d", flags);
// Sliders
static float slider_f = 0.5f;
static int slider_i = 50;
ImGui::Text("Underlying float value: %f", slider_f);
ImGui::SliderFloat("SliderFloat (0 -> 1)", &slider_f, 0.0f, 1.0f, "%.3f", flags);
ImGui::SliderInt("SliderInt (0 -> 100)", &slider_i, 0, 100, "%d", flags);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Range Widgets");
if (ImGui::TreeNode("Range Widgets"))
{
static float begin = 10, end = 90;
static int begin_i = 100, end_i = 1000;
ImGui::DragFloatRange2("range float", &begin, &end, 0.25f, 0.0f, 100.0f, "Min: %.1f %%", "Max: %.1f %%", ImGuiSliderFlags_AlwaysClamp);
ImGui::DragIntRange2("range int", &begin_i, &end_i, 5, 0, 1000, "Min: %d units", "Max: %d units");
ImGui::DragIntRange2("range int (no bounds)", &begin_i, &end_i, 5, 0, 0, "Min: %d units", "Max: %d units");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Data Types");
if (ImGui::TreeNode("Data Types"))
{
// DragScalar/InputScalar/SliderScalar functions allow various data types
// - signed/unsigned
// - 8/16/32/64-bits
// - integer/float/double
// To avoid polluting the public API with all possible combinations, we use the ImGuiDataType enum
// to pass the type, and passing all arguments by pointer.
// This is the reason the test code below creates local variables to hold "zero" "one" etc. for each type.
// In practice, if you frequently use a given type that is not covered by the normal API entry points,
// you can wrap it yourself inside a 1 line function which can take typed argument as value instead of void*,
// and then pass their address to the generic function. For example:
// bool MySliderU64(const char *label, u64* value, u64 min = 0, u64 max = 0, const char* format = "%lld")
// {
// return SliderScalar(label, ImGuiDataType_U64, value, &min, &max, format);
// }
// Setup limits (as helper variables so we can take their address, as explained above)
// Note: SliderScalar() functions have a maximum usable range of half the natural type maximum, hence the /2.
#ifndef LLONG_MIN
ImS64 LLONG_MIN = -9223372036854775807LL - 1;
ImS64 LLONG_MAX = 9223372036854775807LL;
ImU64 ULLONG_MAX = (2ULL * 9223372036854775807LL + 1);
#endif
const char s8_zero = 0, s8_one = 1, s8_fifty = 50, s8_min = -128, s8_max = 127;
const ImU8 u8_zero = 0, u8_one = 1, u8_fifty = 50, u8_min = 0, u8_max = 255;
const short s16_zero = 0, s16_one = 1, s16_fifty = 50, s16_min = -32768, s16_max = 32767;
const ImU16 u16_zero = 0, u16_one = 1, u16_fifty = 50, u16_min = 0, u16_max = 65535;
const ImS32 s32_zero = 0, s32_one = 1, s32_fifty = 50, s32_min = INT_MIN/2, s32_max = INT_MAX/2, s32_hi_a = INT_MAX/2 - 100, s32_hi_b = INT_MAX/2;
const ImU32 u32_zero = 0, u32_one = 1, u32_fifty = 50, u32_min = 0, u32_max = UINT_MAX/2, u32_hi_a = UINT_MAX/2 - 100, u32_hi_b = UINT_MAX/2;
const ImS64 s64_zero = 0, s64_one = 1, s64_fifty = 50, s64_min = LLONG_MIN/2, s64_max = LLONG_MAX/2, s64_hi_a = LLONG_MAX/2 - 100, s64_hi_b = LLONG_MAX/2;
const ImU64 u64_zero = 0, u64_one = 1, u64_fifty = 50, u64_min = 0, u64_max = ULLONG_MAX/2, u64_hi_a = ULLONG_MAX/2 - 100, u64_hi_b = ULLONG_MAX/2;
const float f32_zero = 0.f, f32_one = 1.f, f32_lo_a = -10000000000.0f, f32_hi_a = +10000000000.0f;
const double f64_zero = 0., f64_one = 1., f64_lo_a = -1000000000000000.0, f64_hi_a = +1000000000000000.0;
// State
static char s8_v = 127;
static ImU8 u8_v = 255;
static short s16_v = 32767;
static ImU16 u16_v = 65535;
static ImS32 s32_v = -1;
static ImU32 u32_v = (ImU32)-1;
static ImS64 s64_v = -1;
static ImU64 u64_v = (ImU64)-1;
static float f32_v = 0.123f;
static double f64_v = 90000.01234567890123456789;
const float drag_speed = 0.2f;
static bool drag_clamp = false;
IMGUI_DEMO_MARKER("Widgets/Data Types/Drags");
ImGui::SeparatorText("Drags");
ImGui::Checkbox("Clamp integers to 0..50", &drag_clamp);
ImGui::SameLine(); HelpMarker(
"As with every widget in dear imgui, we never modify values unless there is a user interaction.\n"
"You can override the clamping limits by using CTRL+Click to input a value.");
ImGui::DragScalar("drag s8", ImGuiDataType_S8, &s8_v, drag_speed, drag_clamp ? &s8_zero : NULL, drag_clamp ? &s8_fifty : NULL);
ImGui::DragScalar("drag u8", ImGuiDataType_U8, &u8_v, drag_speed, drag_clamp ? &u8_zero : NULL, drag_clamp ? &u8_fifty : NULL, "%u ms");
ImGui::DragScalar("drag s16", ImGuiDataType_S16, &s16_v, drag_speed, drag_clamp ? &s16_zero : NULL, drag_clamp ? &s16_fifty : NULL);
ImGui::DragScalar("drag u16", ImGuiDataType_U16, &u16_v, drag_speed, drag_clamp ? &u16_zero : NULL, drag_clamp ? &u16_fifty : NULL, "%u ms");
ImGui::DragScalar("drag s32", ImGuiDataType_S32, &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL);
ImGui::DragScalar("drag s32 hex", ImGuiDataType_S32, &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL, "0x%08X");
ImGui::DragScalar("drag u32", ImGuiDataType_U32, &u32_v, drag_speed, drag_clamp ? &u32_zero : NULL, drag_clamp ? &u32_fifty : NULL, "%u ms");
ImGui::DragScalar("drag s64", ImGuiDataType_S64, &s64_v, drag_speed, drag_clamp ? &s64_zero : NULL, drag_clamp ? &s64_fifty : NULL);
ImGui::DragScalar("drag u64", ImGuiDataType_U64, &u64_v, drag_speed, drag_clamp ? &u64_zero : NULL, drag_clamp ? &u64_fifty : NULL);
ImGui::DragScalar("drag float", ImGuiDataType_Float, &f32_v, 0.005f, &f32_zero, &f32_one, "%f");
ImGui::DragScalar("drag float log", ImGuiDataType_Float, &f32_v, 0.005f, &f32_zero, &f32_one, "%f", ImGuiSliderFlags_Logarithmic);
ImGui::DragScalar("drag double", ImGuiDataType_Double, &f64_v, 0.0005f, &f64_zero, NULL, "%.10f grams");
ImGui::DragScalar("drag double log",ImGuiDataType_Double, &f64_v, 0.0005f, &f64_zero, &f64_one, "0 < %.10f < 1", ImGuiSliderFlags_Logarithmic);
IMGUI_DEMO_MARKER("Widgets/Data Types/Sliders");
ImGui::SeparatorText("Sliders");
ImGui::SliderScalar("slider s8 full", ImGuiDataType_S8, &s8_v, &s8_min, &s8_max, "%d");
ImGui::SliderScalar("slider u8 full", ImGuiDataType_U8, &u8_v, &u8_min, &u8_max, "%u");
ImGui::SliderScalar("slider s16 full", ImGuiDataType_S16, &s16_v, &s16_min, &s16_max, "%d");
ImGui::SliderScalar("slider u16 full", ImGuiDataType_U16, &u16_v, &u16_min, &u16_max, "%u");
ImGui::SliderScalar("slider s32 low", ImGuiDataType_S32, &s32_v, &s32_zero, &s32_fifty,"%d");
ImGui::SliderScalar("slider s32 high", ImGuiDataType_S32, &s32_v, &s32_hi_a, &s32_hi_b, "%d");
ImGui::SliderScalar("slider s32 full", ImGuiDataType_S32, &s32_v, &s32_min, &s32_max, "%d");
ImGui::SliderScalar("slider s32 hex", ImGuiDataType_S32, &s32_v, &s32_zero, &s32_fifty, "0x%04X");
ImGui::SliderScalar("slider u32 low", ImGuiDataType_U32, &u32_v, &u32_zero, &u32_fifty,"%u");
ImGui::SliderScalar("slider u32 high", ImGuiDataType_U32, &u32_v, &u32_hi_a, &u32_hi_b, "%u");
ImGui::SliderScalar("slider u32 full", ImGuiDataType_U32, &u32_v, &u32_min, &u32_max, "%u");
ImGui::SliderScalar("slider s64 low", ImGuiDataType_S64, &s64_v, &s64_zero, &s64_fifty,"%" IM_PRId64);
ImGui::SliderScalar("slider s64 high", ImGuiDataType_S64, &s64_v, &s64_hi_a, &s64_hi_b, "%" IM_PRId64);
ImGui::SliderScalar("slider s64 full", ImGuiDataType_S64, &s64_v, &s64_min, &s64_max, "%" IM_PRId64);
ImGui::SliderScalar("slider u64 low", ImGuiDataType_U64, &u64_v, &u64_zero, &u64_fifty,"%" IM_PRIu64 " ms");
ImGui::SliderScalar("slider u64 high", ImGuiDataType_U64, &u64_v, &u64_hi_a, &u64_hi_b, "%" IM_PRIu64 " ms");
ImGui::SliderScalar("slider u64 full", ImGuiDataType_U64, &u64_v, &u64_min, &u64_max, "%" IM_PRIu64 " ms");
ImGui::SliderScalar("slider float low", ImGuiDataType_Float, &f32_v, &f32_zero, &f32_one);
ImGui::SliderScalar("slider float low log", ImGuiDataType_Float, &f32_v, &f32_zero, &f32_one, "%.10f", ImGuiSliderFlags_Logarithmic);
ImGui::SliderScalar("slider float high", ImGuiDataType_Float, &f32_v, &f32_lo_a, &f32_hi_a, "%e");
ImGui::SliderScalar("slider double low", ImGuiDataType_Double, &f64_v, &f64_zero, &f64_one, "%.10f grams");
ImGui::SliderScalar("slider double low log",ImGuiDataType_Double, &f64_v, &f64_zero, &f64_one, "%.10f", ImGuiSliderFlags_Logarithmic);
ImGui::SliderScalar("slider double high", ImGuiDataType_Double, &f64_v, &f64_lo_a, &f64_hi_a, "%e grams");
ImGui::SeparatorText("Sliders (reverse)");
ImGui::SliderScalar("slider s8 reverse", ImGuiDataType_S8, &s8_v, &s8_max, &s8_min, "%d");
ImGui::SliderScalar("slider u8 reverse", ImGuiDataType_U8, &u8_v, &u8_max, &u8_min, "%u");
ImGui::SliderScalar("slider s32 reverse", ImGuiDataType_S32, &s32_v, &s32_fifty, &s32_zero, "%d");
ImGui::SliderScalar("slider u32 reverse", ImGuiDataType_U32, &u32_v, &u32_fifty, &u32_zero, "%u");
ImGui::SliderScalar("slider s64 reverse", ImGuiDataType_S64, &s64_v, &s64_fifty, &s64_zero, "%" IM_PRId64);
ImGui::SliderScalar("slider u64 reverse", ImGuiDataType_U64, &u64_v, &u64_fifty, &u64_zero, "%" IM_PRIu64 " ms");
IMGUI_DEMO_MARKER("Widgets/Data Types/Inputs");
static bool inputs_step = true;
ImGui::SeparatorText("Inputs");
ImGui::Checkbox("Show step buttons", &inputs_step);
ImGui::InputScalar("input s8", ImGuiDataType_S8, &s8_v, inputs_step ? &s8_one : NULL, NULL, "%d");
ImGui::InputScalar("input u8", ImGuiDataType_U8, &u8_v, inputs_step ? &u8_one : NULL, NULL, "%u");
ImGui::InputScalar("input s16", ImGuiDataType_S16, &s16_v, inputs_step ? &s16_one : NULL, NULL, "%d");
ImGui::InputScalar("input u16", ImGuiDataType_U16, &u16_v, inputs_step ? &u16_one : NULL, NULL, "%u");
ImGui::InputScalar("input s32", ImGuiDataType_S32, &s32_v, inputs_step ? &s32_one : NULL, NULL, "%d");
ImGui::InputScalar("input s32 hex", ImGuiDataType_S32, &s32_v, inputs_step ? &s32_one : NULL, NULL, "%04X");
ImGui::InputScalar("input u32", ImGuiDataType_U32, &u32_v, inputs_step ? &u32_one : NULL, NULL, "%u");
ImGui::InputScalar("input u32 hex", ImGuiDataType_U32, &u32_v, inputs_step ? &u32_one : NULL, NULL, "%08X");
ImGui::InputScalar("input s64", ImGuiDataType_S64, &s64_v, inputs_step ? &s64_one : NULL);
ImGui::InputScalar("input u64", ImGuiDataType_U64, &u64_v, inputs_step ? &u64_one : NULL);
ImGui::InputScalar("input float", ImGuiDataType_Float, &f32_v, inputs_step ? &f32_one : NULL);
ImGui::InputScalar("input double", ImGuiDataType_Double, &f64_v, inputs_step ? &f64_one : NULL);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Multi-component Widgets");
if (ImGui::TreeNode("Multi-component Widgets"))
{
static float vec4f[4] = { 0.10f, 0.20f, 0.30f, 0.44f };
static int vec4i[4] = { 1, 5, 100, 255 };
ImGui::SeparatorText("2-wide");
ImGui::InputFloat2("input float2", vec4f);
ImGui::DragFloat2("drag float2", vec4f, 0.01f, 0.0f, 1.0f);
ImGui::SliderFloat2("slider float2", vec4f, 0.0f, 1.0f);
ImGui::InputInt2("input int2", vec4i);
ImGui::DragInt2("drag int2", vec4i, 1, 0, 255);
ImGui::SliderInt2("slider int2", vec4i, 0, 255);
ImGui::SeparatorText("3-wide");
ImGui::InputFloat3("input float3", vec4f);
ImGui::DragFloat3("drag float3", vec4f, 0.01f, 0.0f, 1.0f);
ImGui::SliderFloat3("slider float3", vec4f, 0.0f, 1.0f);
ImGui::InputInt3("input int3", vec4i);
ImGui::DragInt3("drag int3", vec4i, 1, 0, 255);
ImGui::SliderInt3("slider int3", vec4i, 0, 255);
ImGui::SeparatorText("4-wide");
ImGui::InputFloat4("input float4", vec4f);
ImGui::DragFloat4("drag float4", vec4f, 0.01f, 0.0f, 1.0f);
ImGui::SliderFloat4("slider float4", vec4f, 0.0f, 1.0f);
ImGui::InputInt4("input int4", vec4i);
ImGui::DragInt4("drag int4", vec4i, 1, 0, 255);
ImGui::SliderInt4("slider int4", vec4i, 0, 255);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Vertical Sliders");
if (ImGui::TreeNode("Vertical Sliders"))
{
const float spacing = 4;
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(spacing, spacing));
static int int_value = 0;
ImGui::VSliderInt("##int", ImVec2(18, 160), &int_value, 0, 5);
ImGui::SameLine();
static float values[7] = { 0.0f, 0.60f, 0.35f, 0.9f, 0.70f, 0.20f, 0.0f };
ImGui::PushID("set1");
for (int i = 0; i < 7; i++)
{
if (i > 0) ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleColor(ImGuiCol_FrameBg, (ImVec4)ImColor::HSV(i / 7.0f, 0.5f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, (ImVec4)ImColor::HSV(i / 7.0f, 0.6f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgActive, (ImVec4)ImColor::HSV(i / 7.0f, 0.7f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_SliderGrab, (ImVec4)ImColor::HSV(i / 7.0f, 0.9f, 0.9f));
ImGui::VSliderFloat("##v", ImVec2(18, 160), &values[i], 0.0f, 1.0f, "");
if (ImGui::IsItemActive() || ImGui::IsItemHovered())
ImGui::SetTooltip("%.3f", values[i]);
ImGui::PopStyleColor(4);
ImGui::PopID();
}
ImGui::PopID();
ImGui::SameLine();
ImGui::PushID("set2");
static float values2[4] = { 0.20f, 0.80f, 0.40f, 0.25f };
const int rows = 3;
const ImVec2 small_slider_size(18, (float)(int)((160.0f - (rows - 1) * spacing) / rows));
for (int nx = 0; nx < 4; nx++)
{
if (nx > 0) ImGui::SameLine();
ImGui::BeginGroup();
for (int ny = 0; ny < rows; ny++)
{
ImGui::PushID(nx * rows + ny);
ImGui::VSliderFloat("##v", small_slider_size, &values2[nx], 0.0f, 1.0f, "");
if (ImGui::IsItemActive() || ImGui::IsItemHovered())
ImGui::SetTooltip("%.3f", values2[nx]);
ImGui::PopID();
}
ImGui::EndGroup();
}
ImGui::PopID();
ImGui::SameLine();
ImGui::PushID("set3");
for (int i = 0; i < 4; i++)
{
if (i > 0) ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleVar(ImGuiStyleVar_GrabMinSize, 40);
ImGui::VSliderFloat("##v", ImVec2(40, 160), &values[i], 0.0f, 1.0f, "%.2f\nsec");
ImGui::PopStyleVar();
ImGui::PopID();
}
ImGui::PopID();
ImGui::PopStyleVar();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Drag and drop");
if (ImGui::TreeNode("Drag and Drop"))
{
IMGUI_DEMO_MARKER("Widgets/Drag and drop/Standard widgets");
if (ImGui::TreeNode("Drag and drop in standard widgets"))
{
// ColorEdit widgets automatically act as drag source and drag target.
// They are using standardized payload strings IMGUI_PAYLOAD_TYPE_COLOR_3F and IMGUI_PAYLOAD_TYPE_COLOR_4F
// to allow your own widgets to use colors in their drag and drop interaction.
// Also see 'Demo->Widgets->Color/Picker Widgets->Palette' demo.
HelpMarker("You can drag from the color squares.");
static float col1[3] = { 1.0f, 0.0f, 0.2f };
static float col2[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
ImGui::ColorEdit3("color 1", col1);
ImGui::ColorEdit4("color 2", col2);
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Drag and drop/Copy-swap items");
if (ImGui::TreeNode("Drag and drop to copy/swap items"))
{
enum Mode
{
Mode_Copy,
Mode_Move,
Mode_Swap
};
static int mode = 0;
if (ImGui::RadioButton("Copy", mode == Mode_Copy)) { mode = Mode_Copy; } ImGui::SameLine();
if (ImGui::RadioButton("Move", mode == Mode_Move)) { mode = Mode_Move; } ImGui::SameLine();
if (ImGui::RadioButton("Swap", mode == Mode_Swap)) { mode = Mode_Swap; }
static const char* names[9] =
{
"Bobby", "Beatrice", "Betty",
"Brianna", "Barry", "Bernard",
"Bibi", "Blaine", "Bryn"
};
for (int n = 0; n < IM_ARRAYSIZE(names); n++)
{
ImGui::PushID(n);
if ((n % 3) != 0)
ImGui::SameLine();
ImGui::Button(names[n], ImVec2(60, 60));
// Our buttons are both drag sources and drag targets here!
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None))
{
// Set payload to carry the index of our item (could be anything)
ImGui::SetDragDropPayload("DND_DEMO_CELL", &n, sizeof(int));
// Display preview (could be anything, e.g. when dragging an image we could decide to display
// the filename and a small preview of the image, etc.)
if (mode == Mode_Copy) { ImGui::Text("Copy %s", names[n]); }
if (mode == Mode_Move) { ImGui::Text("Move %s", names[n]); }
if (mode == Mode_Swap) { ImGui::Text("Swap %s", names[n]); }
ImGui::EndDragDropSource();
}
if (ImGui::BeginDragDropTarget())
{
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_DEMO_CELL"))
{
IM_ASSERT(payload->DataSize == sizeof(int));
int payload_n = *(const int*)payload->Data;
if (mode == Mode_Copy)
{
names[n] = names[payload_n];
}
if (mode == Mode_Move)
{
names[n] = names[payload_n];
names[payload_n] = "";
}
if (mode == Mode_Swap)
{
const char* tmp = names[n];
names[n] = names[payload_n];
names[payload_n] = tmp;
}
}
ImGui::EndDragDropTarget();
}
ImGui::PopID();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Drag and Drop/Drag to reorder items (simple)");
if (ImGui::TreeNode("Drag to reorder items (simple)"))
{
// Simple reordering
HelpMarker(
"We don't use the drag and drop api at all here! "
"Instead we query when the item is held but not hovered, and order items accordingly.");
static const char* item_names[] = { "Item One", "Item Two", "Item Three", "Item Four", "Item Five" };
for (int n = 0; n < IM_ARRAYSIZE(item_names); n++)
{
const char* item = item_names[n];
ImGui::Selectable(item);
if (ImGui::IsItemActive() && !ImGui::IsItemHovered())
{
int n_next = n + (ImGui::GetMouseDragDelta(0).y < 0.f ? -1 : 1);
if (n_next >= 0 && n_next < IM_ARRAYSIZE(item_names))
{
item_names[n] = item_names[n_next];
item_names[n_next] = item;
ImGui::ResetMouseDragDelta();
}
}
}
ImGui::TreePop();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Querying Item Status (Edited,Active,Hovered etc.)");
if (ImGui::TreeNode("Querying Item Status (Edited/Active/Hovered etc.)"))
{
// Select an item type
const char* item_names[] =
{
"Text", "Button", "Button (w/ repeat)", "Checkbox", "SliderFloat", "InputText", "InputTextMultiline", "InputFloat",
"InputFloat3", "ColorEdit4", "Selectable", "MenuItem", "TreeNode", "TreeNode (w/ double-click)", "Combo", "ListBox"
};
static int item_type = 4;
static bool item_disabled = false;
ImGui::Combo("Item Type", &item_type, item_names, IM_ARRAYSIZE(item_names), IM_ARRAYSIZE(item_names));
ImGui::SameLine();
HelpMarker("Testing how various types of items are interacting with the IsItemXXX functions. Note that the bool return value of most ImGui function is generally equivalent to calling ImGui::IsItemHovered().");
ImGui::Checkbox("Item Disabled", &item_disabled);
// Submit selected items so we can query their status in the code following it.
bool ret = false;
static bool b = false;
static float col4f[4] = { 1.0f, 0.5, 0.0f, 1.0f };
static char str[16] = {};
if (item_disabled)
ImGui::BeginDisabled(true);
if (item_type == 0) { ImGui::Text("ITEM: Text"); } // Testing text items with no identifier/interaction
if (item_type == 1) { ret = ImGui::Button("ITEM: Button"); } // Testing button
if (item_type == 2) { ImGui::PushButtonRepeat(true); ret = ImGui::Button("ITEM: Button"); ImGui::PopButtonRepeat(); } // Testing button (with repeater)
if (item_type == 3) { ret = ImGui::Checkbox("ITEM: Checkbox", &b); } // Testing checkbox
if (item_type == 4) { ret = ImGui::SliderFloat("ITEM: SliderFloat", &col4f[0], 0.0f, 1.0f); } // Testing basic item
if (item_type == 5) { ret = ImGui::InputText("ITEM: InputText", &str[0], IM_ARRAYSIZE(str)); } // Testing input text (which handles tabbing)
if (item_type == 6) { ret = ImGui::InputTextMultiline("ITEM: InputTextMultiline", &str[0], IM_ARRAYSIZE(str)); } // Testing input text (which uses a child window)
if (item_type == 7) { ret = ImGui::InputFloat("ITEM: InputFloat", col4f, 1.0f); } // Testing +/- buttons on scalar input
if (item_type == 8) { ret = ImGui::InputFloat3("ITEM: InputFloat3", col4f); } // Testing multi-component items (IsItemXXX flags are reported merged)
if (item_type == 9) { ret = ImGui::ColorEdit4("ITEM: ColorEdit4", col4f); } // Testing multi-component items (IsItemXXX flags are reported merged)
if (item_type == 10){ ret = ImGui::Selectable("ITEM: Selectable"); } // Testing selectable item
if (item_type == 11){ ret = ImGui::MenuItem("ITEM: MenuItem"); } // Testing menu item (they use ImGuiButtonFlags_PressedOnRelease button policy)
if (item_type == 12){ ret = ImGui::TreeNode("ITEM: TreeNode"); if (ret) ImGui::TreePop(); } // Testing tree node
if (item_type == 13){ ret = ImGui::TreeNodeEx("ITEM: TreeNode w/ ImGuiTreeNodeFlags_OpenOnDoubleClick", ImGuiTreeNodeFlags_OpenOnDoubleClick | ImGuiTreeNodeFlags_NoTreePushOnOpen); } // Testing tree node with ImGuiButtonFlags_PressedOnDoubleClick button policy.
if (item_type == 14){ const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi" }; static int current = 1; ret = ImGui::Combo("ITEM: Combo", ¤t, items, IM_ARRAYSIZE(items)); }
if (item_type == 15){ const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi" }; static int current = 1; ret = ImGui::ListBox("ITEM: ListBox", ¤t, items, IM_ARRAYSIZE(items), IM_ARRAYSIZE(items)); }
bool hovered_delay_none = ImGui::IsItemHovered();
bool hovered_delay_short = ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort);
bool hovered_delay_normal = ImGui::IsItemHovered(ImGuiHoveredFlags_DelayNormal);
// Display the values of IsItemHovered() and other common item state functions.
// Note that the ImGuiHoveredFlags_XXX flags can be combined.
// Because BulletText is an item itself and that would affect the output of IsItemXXX functions,
// we query every state in a single call to avoid storing them and to simplify the code.
ImGui::BulletText(
"Return value = %d\n"
"IsItemFocused() = %d\n"
"IsItemHovered() = %d\n"
"IsItemHovered(_AllowWhenBlockedByPopup) = %d\n"
"IsItemHovered(_AllowWhenBlockedByActiveItem) = %d\n"
"IsItemHovered(_AllowWhenOverlapped) = %d\n"
"IsItemHovered(_AllowWhenDisabled) = %d\n"
"IsItemHovered(_RectOnly) = %d\n"
"IsItemActive() = %d\n"
"IsItemEdited() = %d\n"
"IsItemActivated() = %d\n"
"IsItemDeactivated() = %d\n"
"IsItemDeactivatedAfterEdit() = %d\n"
"IsItemVisible() = %d\n"
"IsItemClicked() = %d\n"
"IsItemToggledOpen() = %d\n"
"GetItemRectMin() = (%.1f, %.1f)\n"
"GetItemRectMax() = (%.1f, %.1f)\n"
"GetItemRectSize() = (%.1f, %.1f)",
ret,
ImGui::IsItemFocused(),
ImGui::IsItemHovered(),
ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup),
ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem),
ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenOverlapped),
ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenDisabled),
ImGui::IsItemHovered(ImGuiHoveredFlags_RectOnly),
ImGui::IsItemActive(),
ImGui::IsItemEdited(),
ImGui::IsItemActivated(),
ImGui::IsItemDeactivated(),
ImGui::IsItemDeactivatedAfterEdit(),
ImGui::IsItemVisible(),
ImGui::IsItemClicked(),
ImGui::IsItemToggledOpen(),
ImGui::GetItemRectMin().x, ImGui::GetItemRectMin().y,
ImGui::GetItemRectMax().x, ImGui::GetItemRectMax().y,
ImGui::GetItemRectSize().x, ImGui::GetItemRectSize().y
);
ImGui::BulletText(
"w/ Hovering Delay: None = %d, Fast %d, Normal = %d", hovered_delay_none, hovered_delay_short, hovered_delay_normal);
if (item_disabled)
ImGui::EndDisabled();
char buf[1] = "";
ImGui::InputText("unused", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_ReadOnly);
ImGui::SameLine();
HelpMarker("This widget is only here to be able to tab-out of the widgets above and see e.g. Deactivated() status.");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Querying Window Status (Focused,Hovered etc.)");
if (ImGui::TreeNode("Querying Window Status (Focused/Hovered etc.)"))
{
static bool embed_all_inside_a_child_window = false;
ImGui::Checkbox("Embed everything inside a child window for testing _RootWindow flag.", &embed_all_inside_a_child_window);
if (embed_all_inside_a_child_window)
ImGui::BeginChild("outer_child", ImVec2(0, ImGui::GetFontSize() * 20.0f), true);
// Testing IsWindowFocused() function with its various flags.
ImGui::BulletText(
"IsWindowFocused() = %d\n"
"IsWindowFocused(_ChildWindows) = %d\n"
"IsWindowFocused(_ChildWindows|_NoPopupHierarchy) = %d\n"
"IsWindowFocused(_ChildWindows|_RootWindow) = %d\n"
"IsWindowFocused(_ChildWindows|_RootWindow|_NoPopupHierarchy) = %d\n"
"IsWindowFocused(_RootWindow) = %d\n"
"IsWindowFocused(_RootWindow|_NoPopupHierarchy) = %d\n"
"IsWindowFocused(_AnyWindow) = %d\n",
ImGui::IsWindowFocused(),
ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows),
ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_NoPopupHierarchy),
ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_RootWindow),
ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_NoPopupHierarchy),
ImGui::IsWindowFocused(ImGuiFocusedFlags_RootWindow),
ImGui::IsWindowFocused(ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_NoPopupHierarchy),
ImGui::IsWindowFocused(ImGuiFocusedFlags_AnyWindow));
// Testing IsWindowHovered() function with its various flags.
ImGui::BulletText(
"IsWindowHovered() = %d\n"
"IsWindowHovered(_AllowWhenBlockedByPopup) = %d\n"
"IsWindowHovered(_AllowWhenBlockedByActiveItem) = %d\n"
"IsWindowHovered(_ChildWindows) = %d\n"
"IsWindowHovered(_ChildWindows|_NoPopupHierarchy) = %d\n"
"IsWindowHovered(_ChildWindows|_RootWindow) = %d\n"
"IsWindowHovered(_ChildWindows|_RootWindow|_NoPopupHierarchy) = %d\n"
"IsWindowHovered(_RootWindow) = %d\n"
"IsWindowHovered(_RootWindow|_NoPopupHierarchy) = %d\n"
"IsWindowHovered(_ChildWindows|_AllowWhenBlockedByPopup) = %d\n"
"IsWindowHovered(_AnyWindow) = %d\n",
ImGui::IsWindowHovered(),
ImGui::IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup),
ImGui::IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem),
ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows),
ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_NoPopupHierarchy),
ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_RootWindow),
ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_NoPopupHierarchy),
ImGui::IsWindowHovered(ImGuiHoveredFlags_RootWindow),
ImGui::IsWindowHovered(ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_NoPopupHierarchy),
ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_AllowWhenBlockedByPopup),
ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow));
ImGui::BeginChild("child", ImVec2(0, 50), true);
ImGui::Text("This is another child window for testing the _ChildWindows flag.");
ImGui::EndChild();
if (embed_all_inside_a_child_window)
ImGui::EndChild();
// Calling IsItemHovered() after begin returns the hovered status of the title bar.
// This is useful in particular if you want to create a context menu associated to the title bar of a window.
static bool test_window = false;
ImGui::Checkbox("Hovered/Active tests after Begin() for title bar testing", &test_window);
if (test_window)
{
ImGui::Begin("Title bar Hovered/Active tests", &test_window);
if (ImGui::BeginPopupContextItem()) // <-- This is using IsItemHovered()
{
if (ImGui::MenuItem("Close")) { test_window = false; }
ImGui::EndPopup();
}
ImGui::Text(
"IsItemHovered() after begin = %d (== is title bar hovered)\n"
"IsItemActive() after begin = %d (== is window being clicked/moved)\n",
ImGui::IsItemHovered(), ImGui::IsItemActive());
ImGui::End();
}
ImGui::TreePop();
}
// Demonstrate BeginDisabled/EndDisabled using a checkbox located at the bottom of the section (which is a bit odd:
// logically we'd have this checkbox at the top of the section, but we don't want this feature to steal that space)
if (disable_all)
ImGui::EndDisabled();
IMGUI_DEMO_MARKER("Widgets/Disable Block");
if (ImGui::TreeNode("Disable block"))
{
ImGui::Checkbox("Disable entire section above", &disable_all);
ImGui::SameLine(); HelpMarker("Demonstrate using BeginDisabled()/EndDisabled() across this section.");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Widgets/Text Filter");
if (ImGui::TreeNode("Text Filter"))
{
// Helper class to easy setup a text filter.
// You may want to implement a more feature-full filtering scheme in your own application.
HelpMarker("Not a widget per-se, but ImGuiTextFilter is a helper to perform simple filtering on text strings.");
static ImGuiTextFilter filter;
ImGui::Text("Filter usage:\n"
" \"\" display all lines\n"
" \"xxx\" display lines containing \"xxx\"\n"
" \"xxx,yyy\" display lines containing \"xxx\" or \"yyy\"\n"
" \"-xxx\" hide lines containing \"xxx\"");
filter.Draw();
const char* lines[] = { "aaa1.c", "bbb1.c", "ccc1.c", "aaa2.cpp", "bbb2.cpp", "ccc2.cpp", "abc.h", "hello, world" };
for (int i = 0; i < IM_ARRAYSIZE(lines); i++)
if (filter.PassFilter(lines[i]))
ImGui::BulletText("%s", lines[i]);
ImGui::TreePop();
}
}
static void ShowDemoWindowLayout()
{
IMGUI_DEMO_MARKER("Layout");
if (!ImGui::CollapsingHeader("Layout & Scrolling"))
return;
IMGUI_DEMO_MARKER("Layout/Child windows");
if (ImGui::TreeNode("Child windows"))
{
ImGui::SeparatorText("Child windows");
HelpMarker("Use child windows to begin into a self-contained independent scrolling/clipping regions within a host window.");
static bool disable_mouse_wheel = false;
static bool disable_menu = false;
ImGui::Checkbox("Disable Mouse Wheel", &disable_mouse_wheel);
ImGui::Checkbox("Disable Menu", &disable_menu);
// Child 1: no border, enable horizontal scrollbar
{
ImGuiWindowFlags window_flags = ImGuiWindowFlags_HorizontalScrollbar;
if (disable_mouse_wheel)
window_flags |= ImGuiWindowFlags_NoScrollWithMouse;
ImGui::BeginChild("ChildL", ImVec2(ImGui::GetContentRegionAvail().x * 0.5f, 260), false, window_flags);
for (int i = 0; i < 100; i++)
ImGui::Text("%04d: scrollable region", i);
ImGui::EndChild();
}
ImGui::SameLine();
// Child 2: rounded border
{
ImGuiWindowFlags window_flags = ImGuiWindowFlags_None;
if (disable_mouse_wheel)
window_flags |= ImGuiWindowFlags_NoScrollWithMouse;
if (!disable_menu)
window_flags |= ImGuiWindowFlags_MenuBar;
ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 5.0f);
ImGui::BeginChild("ChildR", ImVec2(0, 260), true, window_flags);
if (!disable_menu && ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("Menu"))
{
ShowExampleMenuFile();
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
if (ImGui::BeginTable("split", 2, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings))
{
for (int i = 0; i < 100; i++)
{
char buf[32];
sprintf(buf, "%03d", i);
ImGui::TableNextColumn();
ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
}
ImGui::EndTable();
}
ImGui::EndChild();
ImGui::PopStyleVar();
}
ImGui::SeparatorText("Misc/Advanced");
// Demonstrate a few extra things
// - Changing ImGuiCol_ChildBg (which is transparent black in default styles)
// - Using SetCursorPos() to position child window (the child window is an item from the POV of parent window)
// You can also call SetNextWindowPos() to position the child window. The parent window will effectively
// layout from this position.
// - Using ImGui::GetItemRectMin/Max() to query the "item" state (because the child window is an item from
// the POV of the parent window). See 'Demo->Querying Status (Edited/Active/Hovered etc.)' for details.
{
static int offset_x = 0;
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
ImGui::DragInt("Offset X", &offset_x, 1.0f, -1000, 1000);
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + (float)offset_x);
ImGui::PushStyleColor(ImGuiCol_ChildBg, IM_COL32(255, 0, 0, 100));
ImGui::BeginChild("Red", ImVec2(200, 100), true, ImGuiWindowFlags_None);
for (int n = 0; n < 50; n++)
ImGui::Text("Some test %d", n);
ImGui::EndChild();
bool child_is_hovered = ImGui::IsItemHovered();
ImVec2 child_rect_min = ImGui::GetItemRectMin();
ImVec2 child_rect_max = ImGui::GetItemRectMax();
ImGui::PopStyleColor();
ImGui::Text("Hovered: %d", child_is_hovered);
ImGui::Text("Rect of child window is: (%.0f,%.0f) (%.0f,%.0f)", child_rect_min.x, child_rect_min.y, child_rect_max.x, child_rect_max.y);
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Layout/Widgets Width");
if (ImGui::TreeNode("Widgets Width"))
{
static float f = 0.0f;
static bool show_indented_items = true;
ImGui::Checkbox("Show indented items", &show_indented_items);
// Use SetNextItemWidth() to set the width of a single upcoming item.
// Use PushItemWidth()/PopItemWidth() to set the width of a group of items.
// In real code use you'll probably want to choose width values that are proportional to your font size
// e.g. Using '20.0f * GetFontSize()' as width instead of '200.0f', etc.
ImGui::Text("SetNextItemWidth/PushItemWidth(100)");
ImGui::SameLine(); HelpMarker("Fixed width.");
ImGui::PushItemWidth(100);
ImGui::DragFloat("float##1b", &f);
if (show_indented_items)
{
ImGui::Indent();
ImGui::DragFloat("float (indented)##1b", &f);
ImGui::Unindent();
}
ImGui::PopItemWidth();
ImGui::Text("SetNextItemWidth/PushItemWidth(-100)");
ImGui::SameLine(); HelpMarker("Align to right edge minus 100");
ImGui::PushItemWidth(-100);
ImGui::DragFloat("float##2a", &f);
if (show_indented_items)
{
ImGui::Indent();
ImGui::DragFloat("float (indented)##2b", &f);
ImGui::Unindent();
}
ImGui::PopItemWidth();
ImGui::Text("SetNextItemWidth/PushItemWidth(GetContentRegionAvail().x * 0.5f)");
ImGui::SameLine(); HelpMarker("Half of available width.\n(~ right-cursor_pos)\n(works within a column set)");
ImGui::PushItemWidth(ImGui::GetContentRegionAvail().x * 0.5f);
ImGui::DragFloat("float##3a", &f);
if (show_indented_items)
{
ImGui::Indent();
ImGui::DragFloat("float (indented)##3b", &f);
ImGui::Unindent();
}
ImGui::PopItemWidth();
ImGui::Text("SetNextItemWidth/PushItemWidth(-GetContentRegionAvail().x * 0.5f)");
ImGui::SameLine(); HelpMarker("Align to right edge minus half");
ImGui::PushItemWidth(-ImGui::GetContentRegionAvail().x * 0.5f);
ImGui::DragFloat("float##4a", &f);
if (show_indented_items)
{
ImGui::Indent();
ImGui::DragFloat("float (indented)##4b", &f);
ImGui::Unindent();
}
ImGui::PopItemWidth();
// Demonstrate using PushItemWidth to surround three items.
// Calling SetNextItemWidth() before each of them would have the same effect.
ImGui::Text("SetNextItemWidth/PushItemWidth(-FLT_MIN)");
ImGui::SameLine(); HelpMarker("Align to right edge");
ImGui::PushItemWidth(-FLT_MIN);
ImGui::DragFloat("##float5a", &f);
if (show_indented_items)
{
ImGui::Indent();
ImGui::DragFloat("float (indented)##5b", &f);
ImGui::Unindent();
}
ImGui::PopItemWidth();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout");
if (ImGui::TreeNode("Basic Horizontal Layout"))
{
ImGui::TextWrapped("(Use ImGui::SameLine() to keep adding items to the right of the preceding item)");
// Text
IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/SameLine");
ImGui::Text("Two items: Hello"); ImGui::SameLine();
ImGui::TextColored(ImVec4(1,1,0,1), "Sailor");
// Adjust spacing
ImGui::Text("More spacing: Hello"); ImGui::SameLine(0, 20);
ImGui::TextColored(ImVec4(1,1,0,1), "Sailor");
// Button
ImGui::AlignTextToFramePadding();
ImGui::Text("Normal buttons"); ImGui::SameLine();
ImGui::Button("Banana"); ImGui::SameLine();
ImGui::Button("Apple"); ImGui::SameLine();
ImGui::Button("Corniflower");
// Button
ImGui::Text("Small buttons"); ImGui::SameLine();
ImGui::SmallButton("Like this one"); ImGui::SameLine();
ImGui::Text("can fit within a text block.");
// Aligned to arbitrary position. Easy/cheap column.
IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/SameLine (with offset)");
ImGui::Text("Aligned");
ImGui::SameLine(150); ImGui::Text("x=150");
ImGui::SameLine(300); ImGui::Text("x=300");
ImGui::Text("Aligned");
ImGui::SameLine(150); ImGui::SmallButton("x=150");
ImGui::SameLine(300); ImGui::SmallButton("x=300");
// Checkbox
IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/SameLine (more)");
static bool c1 = false, c2 = false, c3 = false, c4 = false;
ImGui::Checkbox("My", &c1); ImGui::SameLine();
ImGui::Checkbox("Tailor", &c2); ImGui::SameLine();
ImGui::Checkbox("Is", &c3); ImGui::SameLine();
ImGui::Checkbox("Rich", &c4);
// Various
static float f0 = 1.0f, f1 = 2.0f, f2 = 3.0f;
ImGui::PushItemWidth(80);
const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD" };
static int item = -1;
ImGui::Combo("Combo", &item, items, IM_ARRAYSIZE(items)); ImGui::SameLine();
ImGui::SliderFloat("X", &f0, 0.0f, 5.0f); ImGui::SameLine();
ImGui::SliderFloat("Y", &f1, 0.0f, 5.0f); ImGui::SameLine();
ImGui::SliderFloat("Z", &f2, 0.0f, 5.0f);
ImGui::PopItemWidth();
ImGui::PushItemWidth(80);
ImGui::Text("Lists:");
static int selection[4] = { 0, 1, 2, 3 };
for (int i = 0; i < 4; i++)
{
if (i > 0) ImGui::SameLine();
ImGui::PushID(i);
ImGui::ListBox("", &selection[i], items, IM_ARRAYSIZE(items));
ImGui::PopID();
//if (ImGui::IsItemHovered()) ImGui::SetTooltip("ListBox %d hovered", i);
}
ImGui::PopItemWidth();
// Dummy
IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/Dummy");
ImVec2 button_sz(40, 40);
ImGui::Button("A", button_sz); ImGui::SameLine();
ImGui::Dummy(button_sz); ImGui::SameLine();
ImGui::Button("B", button_sz);
// Manually wrapping
// (we should eventually provide this as an automatic layout feature, but for now you can do it manually)
IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/Manual wrapping");
ImGui::Text("Manual wrapping:");
ImGuiStyle& style = ImGui::GetStyle();
int buttons_count = 20;
float window_visible_x2 = ImGui::GetWindowPos().x + ImGui::GetWindowContentRegionMax().x;
for (int n = 0; n < buttons_count; n++)
{
ImGui::PushID(n);
ImGui::Button("Box", button_sz);
float last_button_x2 = ImGui::GetItemRectMax().x;
float next_button_x2 = last_button_x2 + style.ItemSpacing.x + button_sz.x; // Expected position if next button was on same line
if (n + 1 < buttons_count && next_button_x2 < window_visible_x2)
ImGui::SameLine();
ImGui::PopID();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Layout/Groups");
if (ImGui::TreeNode("Groups"))
{
HelpMarker(
"BeginGroup() basically locks the horizontal position for new line. "
"EndGroup() bundles the whole group so that you can use \"item\" functions such as "
"IsItemHovered()/IsItemActive() or SameLine() etc. on the whole group.");
ImGui::BeginGroup();
{
ImGui::BeginGroup();
ImGui::Button("AAA");
ImGui::SameLine();
ImGui::Button("BBB");
ImGui::SameLine();
ImGui::BeginGroup();
ImGui::Button("CCC");
ImGui::Button("DDD");
ImGui::EndGroup();
ImGui::SameLine();
ImGui::Button("EEE");
ImGui::EndGroup();
if (ImGui::IsItemHovered())
ImGui::SetTooltip("First group hovered");
}
// Capture the group size and create widgets using the same size
ImVec2 size = ImGui::GetItemRectSize();
const float values[5] = { 0.5f, 0.20f, 0.80f, 0.60f, 0.25f };
ImGui::PlotHistogram("##values", values, IM_ARRAYSIZE(values), 0, NULL, 0.0f, 1.0f, size);
ImGui::Button("ACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x) * 0.5f, size.y));
ImGui::SameLine();
ImGui::Button("REACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x) * 0.5f, size.y));
ImGui::EndGroup();
ImGui::SameLine();
ImGui::Button("LEVERAGE\nBUZZWORD", size);
ImGui::SameLine();
if (ImGui::BeginListBox("List", size))
{
ImGui::Selectable("Selected", true);
ImGui::Selectable("Not Selected", false);
ImGui::EndListBox();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Layout/Text Baseline Alignment");
if (ImGui::TreeNode("Text Baseline Alignment"))
{
{
ImGui::BulletText("Text baseline:");
ImGui::SameLine(); HelpMarker(
"This is testing the vertical alignment that gets applied on text to keep it aligned with widgets. "
"Lines only composed of text or \"small\" widgets use less vertical space than lines with framed widgets.");
ImGui::Indent();
ImGui::Text("KO Blahblah"); ImGui::SameLine();
ImGui::Button("Some framed item"); ImGui::SameLine();
HelpMarker("Baseline of button will look misaligned with text..");
// If your line starts with text, call AlignTextToFramePadding() to align text to upcoming widgets.
// (because we don't know what's coming after the Text() statement, we need to move the text baseline
// down by FramePadding.y ahead of time)
ImGui::AlignTextToFramePadding();
ImGui::Text("OK Blahblah"); ImGui::SameLine();
ImGui::Button("Some framed item"); ImGui::SameLine();
HelpMarker("We call AlignTextToFramePadding() to vertically align the text baseline by +FramePadding.y");
// SmallButton() uses the same vertical padding as Text
ImGui::Button("TEST##1"); ImGui::SameLine();
ImGui::Text("TEST"); ImGui::SameLine();
ImGui::SmallButton("TEST##2");
// If your line starts with text, call AlignTextToFramePadding() to align text to upcoming widgets.
ImGui::AlignTextToFramePadding();
ImGui::Text("Text aligned to framed item"); ImGui::SameLine();
ImGui::Button("Item##1"); ImGui::SameLine();
ImGui::Text("Item"); ImGui::SameLine();
ImGui::SmallButton("Item##2"); ImGui::SameLine();
ImGui::Button("Item##3");
ImGui::Unindent();
}
ImGui::Spacing();
{
ImGui::BulletText("Multi-line text:");
ImGui::Indent();
ImGui::Text("One\nTwo\nThree"); ImGui::SameLine();
ImGui::Text("Hello\nWorld"); ImGui::SameLine();
ImGui::Text("Banana");
ImGui::Text("Banana"); ImGui::SameLine();
ImGui::Text("Hello\nWorld"); ImGui::SameLine();
ImGui::Text("One\nTwo\nThree");
ImGui::Button("HOP##1"); ImGui::SameLine();
ImGui::Text("Banana"); ImGui::SameLine();
ImGui::Text("Hello\nWorld"); ImGui::SameLine();
ImGui::Text("Banana");
ImGui::Button("HOP##2"); ImGui::SameLine();
ImGui::Text("Hello\nWorld"); ImGui::SameLine();
ImGui::Text("Banana");
ImGui::Unindent();
}
ImGui::Spacing();
{
ImGui::BulletText("Misc items:");
ImGui::Indent();
// SmallButton() sets FramePadding to zero. Text baseline is aligned to match baseline of previous Button.
ImGui::Button("80x80", ImVec2(80, 80));
ImGui::SameLine();
ImGui::Button("50x50", ImVec2(50, 50));
ImGui::SameLine();
ImGui::Button("Button()");
ImGui::SameLine();
ImGui::SmallButton("SmallButton()");
// Tree
const float spacing = ImGui::GetStyle().ItemInnerSpacing.x;
ImGui::Button("Button##1");
ImGui::SameLine(0.0f, spacing);
if (ImGui::TreeNode("Node##1"))
{
// Placeholder tree data
for (int i = 0; i < 6; i++)
ImGui::BulletText("Item %d..", i);
ImGui::TreePop();
}
// Vertically align text node a bit lower so it'll be vertically centered with upcoming widget.
// Otherwise you can use SmallButton() (smaller fit).
ImGui::AlignTextToFramePadding();
// Common mistake to avoid: if we want to SameLine after TreeNode we need to do it before we add
// other contents below the node.
bool node_open = ImGui::TreeNode("Node##2");
ImGui::SameLine(0.0f, spacing); ImGui::Button("Button##2");
if (node_open)
{
// Placeholder tree data
for (int i = 0; i < 6; i++)
ImGui::BulletText("Item %d..", i);
ImGui::TreePop();
}
// Bullet
ImGui::Button("Button##3");
ImGui::SameLine(0.0f, spacing);
ImGui::BulletText("Bullet text");
ImGui::AlignTextToFramePadding();
ImGui::BulletText("Node");
ImGui::SameLine(0.0f, spacing); ImGui::Button("Button##4");
ImGui::Unindent();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Layout/Scrolling");
if (ImGui::TreeNode("Scrolling"))
{
// Vertical scroll functions
IMGUI_DEMO_MARKER("Layout/Scrolling/Vertical");
HelpMarker("Use SetScrollHereY() or SetScrollFromPosY() to scroll to a given vertical position.");
static int track_item = 50;
static bool enable_track = true;
static bool enable_extra_decorations = false;
static float scroll_to_off_px = 0.0f;
static float scroll_to_pos_px = 200.0f;
ImGui::Checkbox("Decoration", &enable_extra_decorations);
ImGui::Checkbox("Track", &enable_track);
ImGui::PushItemWidth(100);
ImGui::SameLine(140); enable_track |= ImGui::DragInt("##item", &track_item, 0.25f, 0, 99, "Item = %d");
bool scroll_to_off = ImGui::Button("Scroll Offset");
ImGui::SameLine(140); scroll_to_off |= ImGui::DragFloat("##off", &scroll_to_off_px, 1.00f, 0, FLT_MAX, "+%.0f px");
bool scroll_to_pos = ImGui::Button("Scroll To Pos");
ImGui::SameLine(140); scroll_to_pos |= ImGui::DragFloat("##pos", &scroll_to_pos_px, 1.00f, -10, FLT_MAX, "X/Y = %.0f px");
ImGui::PopItemWidth();
if (scroll_to_off || scroll_to_pos)
enable_track = false;
ImGuiStyle& style = ImGui::GetStyle();
float child_w = (ImGui::GetContentRegionAvail().x - 4 * style.ItemSpacing.x) / 5;
if (child_w < 1.0f)
child_w = 1.0f;
ImGui::PushID("##VerticalScrolling");
for (int i = 0; i < 5; i++)
{
if (i > 0) ImGui::SameLine();
ImGui::BeginGroup();
const char* names[] = { "Top", "25%", "Center", "75%", "Bottom" };
ImGui::TextUnformatted(names[i]);
const ImGuiWindowFlags child_flags = enable_extra_decorations ? ImGuiWindowFlags_MenuBar : 0;
const ImGuiID child_id = ImGui::GetID((void*)(intptr_t)i);
const bool child_is_visible = ImGui::BeginChild(child_id, ImVec2(child_w, 200.0f), true, child_flags);
if (ImGui::BeginMenuBar())
{
ImGui::TextUnformatted("abc");
ImGui::EndMenuBar();
}
if (scroll_to_off)
ImGui::SetScrollY(scroll_to_off_px);
if (scroll_to_pos)
ImGui::SetScrollFromPosY(ImGui::GetCursorStartPos().y + scroll_to_pos_px, i * 0.25f);
if (child_is_visible) // Avoid calling SetScrollHereY when running with culled items
{
for (int item = 0; item < 100; item++)
{
if (enable_track && item == track_item)
{
ImGui::TextColored(ImVec4(1, 1, 0, 1), "Item %d", item);
ImGui::SetScrollHereY(i * 0.25f); // 0.0f:top, 0.5f:center, 1.0f:bottom
}
else
{
ImGui::Text("Item %d", item);
}
}
}
float scroll_y = ImGui::GetScrollY();
float scroll_max_y = ImGui::GetScrollMaxY();
ImGui::EndChild();
ImGui::Text("%.0f/%.0f", scroll_y, scroll_max_y);
ImGui::EndGroup();
}
ImGui::PopID();
// Horizontal scroll functions
IMGUI_DEMO_MARKER("Layout/Scrolling/Horizontal");
ImGui::Spacing();
HelpMarker(
"Use SetScrollHereX() or SetScrollFromPosX() to scroll to a given horizontal position.\n\n"
"Because the clipping rectangle of most window hides half worth of WindowPadding on the "
"left/right, using SetScrollFromPosX(+1) will usually result in clipped text whereas the "
"equivalent SetScrollFromPosY(+1) wouldn't.");
ImGui::PushID("##HorizontalScrolling");
for (int i = 0; i < 5; i++)
{
float child_height = ImGui::GetTextLineHeight() + style.ScrollbarSize + style.WindowPadding.y * 2.0f;
ImGuiWindowFlags child_flags = ImGuiWindowFlags_HorizontalScrollbar | (enable_extra_decorations ? ImGuiWindowFlags_AlwaysVerticalScrollbar : 0);
ImGuiID child_id = ImGui::GetID((void*)(intptr_t)i);
bool child_is_visible = ImGui::BeginChild(child_id, ImVec2(-100, child_height), true, child_flags);
if (scroll_to_off)
ImGui::SetScrollX(scroll_to_off_px);
if (scroll_to_pos)
ImGui::SetScrollFromPosX(ImGui::GetCursorStartPos().x + scroll_to_pos_px, i * 0.25f);
if (child_is_visible) // Avoid calling SetScrollHereY when running with culled items
{
for (int item = 0; item < 100; item++)
{
if (item > 0)
ImGui::SameLine();
if (enable_track && item == track_item)
{
ImGui::TextColored(ImVec4(1, 1, 0, 1), "Item %d", item);
ImGui::SetScrollHereX(i * 0.25f); // 0.0f:left, 0.5f:center, 1.0f:right
}
else
{
ImGui::Text("Item %d", item);
}
}
}
float scroll_x = ImGui::GetScrollX();
float scroll_max_x = ImGui::GetScrollMaxX();
ImGui::EndChild();
ImGui::SameLine();
const char* names[] = { "Left", "25%", "Center", "75%", "Right" };
ImGui::Text("%s\n%.0f/%.0f", names[i], scroll_x, scroll_max_x);
ImGui::Spacing();
}
ImGui::PopID();
// Miscellaneous Horizontal Scrolling Demo
IMGUI_DEMO_MARKER("Layout/Scrolling/Horizontal (more)");
HelpMarker(
"Horizontal scrolling for a window is enabled via the ImGuiWindowFlags_HorizontalScrollbar flag.\n\n"
"You may want to also explicitly specify content width by using SetNextWindowContentWidth() before Begin().");
static int lines = 7;
ImGui::SliderInt("Lines", &lines, 1, 15);
ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2.0f, 1.0f));
ImVec2 scrolling_child_size = ImVec2(0, ImGui::GetFrameHeightWithSpacing() * 7 + 30);
ImGui::BeginChild("scrolling", scrolling_child_size, true, ImGuiWindowFlags_HorizontalScrollbar);
for (int line = 0; line < lines; line++)
{
// Display random stuff. For the sake of this trivial demo we are using basic Button() + SameLine()
// If you want to create your own time line for a real application you may be better off manipulating
// the cursor position yourself, aka using SetCursorPos/SetCursorScreenPos to position the widgets
// yourself. You may also want to use the lower-level ImDrawList API.
int num_buttons = 10 + ((line & 1) ? line * 9 : line * 3);
for (int n = 0; n < num_buttons; n++)
{
if (n > 0) ImGui::SameLine();
ImGui::PushID(n + line * 1000);
char num_buf[16];
sprintf(num_buf, "%d", n);
const char* label = (!(n % 15)) ? "FizzBuzz" : (!(n % 3)) ? "Fizz" : (!(n % 5)) ? "Buzz" : num_buf;
float hue = n * 0.05f;
ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(hue, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(hue, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(hue, 0.8f, 0.8f));
ImGui::Button(label, ImVec2(40.0f + sinf((float)(line + n)) * 20.0f, 0.0f));
ImGui::PopStyleColor(3);
ImGui::PopID();
}
}
float scroll_x = ImGui::GetScrollX();
float scroll_max_x = ImGui::GetScrollMaxX();
ImGui::EndChild();
ImGui::PopStyleVar(2);
float scroll_x_delta = 0.0f;
ImGui::SmallButton("<<");
if (ImGui::IsItemActive())
scroll_x_delta = -ImGui::GetIO().DeltaTime * 1000.0f;
ImGui::SameLine();
ImGui::Text("Scroll from code"); ImGui::SameLine();
ImGui::SmallButton(">>");
if (ImGui::IsItemActive())
scroll_x_delta = +ImGui::GetIO().DeltaTime * 1000.0f;
ImGui::SameLine();
ImGui::Text("%.0f/%.0f", scroll_x, scroll_max_x);
if (scroll_x_delta != 0.0f)
{
// Demonstrate a trick: you can use Begin to set yourself in the context of another window
// (here we are already out of your child window)
ImGui::BeginChild("scrolling");
ImGui::SetScrollX(ImGui::GetScrollX() + scroll_x_delta);
ImGui::EndChild();
}
ImGui::Spacing();
static bool show_horizontal_contents_size_demo_window = false;
ImGui::Checkbox("Show Horizontal contents size demo window", &show_horizontal_contents_size_demo_window);
if (show_horizontal_contents_size_demo_window)
{
static bool show_h_scrollbar = true;
static bool show_button = true;
static bool show_tree_nodes = true;
static bool show_text_wrapped = false;
static bool show_columns = true;
static bool show_tab_bar = true;
static bool show_child = false;
static bool explicit_content_size = false;
static float contents_size_x = 300.0f;
if (explicit_content_size)
ImGui::SetNextWindowContentSize(ImVec2(contents_size_x, 0.0f));
ImGui::Begin("Horizontal contents size demo window", &show_horizontal_contents_size_demo_window, show_h_scrollbar ? ImGuiWindowFlags_HorizontalScrollbar : 0);
IMGUI_DEMO_MARKER("Layout/Scrolling/Horizontal contents size demo window");
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(2, 0));
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2, 0));
HelpMarker("Test of different widgets react and impact the work rectangle growing when horizontal scrolling is enabled.\n\nUse 'Metrics->Tools->Show windows rectangles' to visualize rectangles.");
ImGui::Checkbox("H-scrollbar", &show_h_scrollbar);
ImGui::Checkbox("Button", &show_button); // Will grow contents size (unless explicitly overwritten)
ImGui::Checkbox("Tree nodes", &show_tree_nodes); // Will grow contents size and display highlight over full width
ImGui::Checkbox("Text wrapped", &show_text_wrapped);// Will grow and use contents size
ImGui::Checkbox("Columns", &show_columns); // Will use contents size
ImGui::Checkbox("Tab bar", &show_tab_bar); // Will use contents size
ImGui::Checkbox("Child", &show_child); // Will grow and use contents size
ImGui::Checkbox("Explicit content size", &explicit_content_size);
ImGui::Text("Scroll %.1f/%.1f %.1f/%.1f", ImGui::GetScrollX(), ImGui::GetScrollMaxX(), ImGui::GetScrollY(), ImGui::GetScrollMaxY());
if (explicit_content_size)
{
ImGui::SameLine();
ImGui::SetNextItemWidth(100);
ImGui::DragFloat("##csx", &contents_size_x);
ImVec2 p = ImGui::GetCursorScreenPos();
ImGui::GetWindowDrawList()->AddRectFilled(p, ImVec2(p.x + 10, p.y + 10), IM_COL32_WHITE);
ImGui::GetWindowDrawList()->AddRectFilled(ImVec2(p.x + contents_size_x - 10, p.y), ImVec2(p.x + contents_size_x, p.y + 10), IM_COL32_WHITE);
ImGui::Dummy(ImVec2(0, 10));
}
ImGui::PopStyleVar(2);
ImGui::Separator();
if (show_button)
{
ImGui::Button("this is a 300-wide button", ImVec2(300, 0));
}
if (show_tree_nodes)
{
bool open = true;
if (ImGui::TreeNode("this is a tree node"))
{
if (ImGui::TreeNode("another one of those tree node..."))
{
ImGui::Text("Some tree contents");
ImGui::TreePop();
}
ImGui::TreePop();
}
ImGui::CollapsingHeader("CollapsingHeader", &open);
}
if (show_text_wrapped)
{
ImGui::TextWrapped("This text should automatically wrap on the edge of the work rectangle.");
}
if (show_columns)
{
ImGui::Text("Tables:");
if (ImGui::BeginTable("table", 4, ImGuiTableFlags_Borders))
{
for (int n = 0; n < 4; n++)
{
ImGui::TableNextColumn();
ImGui::Text("Width %.2f", ImGui::GetContentRegionAvail().x);
}
ImGui::EndTable();
}
ImGui::Text("Columns:");
ImGui::Columns(4);
for (int n = 0; n < 4; n++)
{
ImGui::Text("Width %.2f", ImGui::GetColumnWidth());
ImGui::NextColumn();
}
ImGui::Columns(1);
}
if (show_tab_bar && ImGui::BeginTabBar("Hello"))
{
if (ImGui::BeginTabItem("OneOneOne")) { ImGui::EndTabItem(); }
if (ImGui::BeginTabItem("TwoTwoTwo")) { ImGui::EndTabItem(); }
if (ImGui::BeginTabItem("ThreeThreeThree")) { ImGui::EndTabItem(); }
if (ImGui::BeginTabItem("FourFourFour")) { ImGui::EndTabItem(); }
ImGui::EndTabBar();
}
if (show_child)
{
ImGui::BeginChild("child", ImVec2(0, 0), true);
ImGui::EndChild();
}
ImGui::End();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Layout/Clipping");
if (ImGui::TreeNode("Clipping"))
{
static ImVec2 size(100.0f, 100.0f);
static ImVec2 offset(30.0f, 30.0f);
ImGui::DragFloat2("size", (float*)&size, 0.5f, 1.0f, 200.0f, "%.0f");
ImGui::TextWrapped("(Click and drag to scroll)");
HelpMarker(
"(Left) Using ImGui::PushClipRect():\n"
"Will alter ImGui hit-testing logic + ImDrawList rendering.\n"
"(use this if you want your clipping rectangle to affect interactions)\n\n"
"(Center) Using ImDrawList::PushClipRect():\n"
"Will alter ImDrawList rendering only.\n"
"(use this as a shortcut if you are only using ImDrawList calls)\n\n"
"(Right) Using ImDrawList::AddText() with a fine ClipRect:\n"
"Will alter only this specific ImDrawList::AddText() rendering.\n"
"This is often used internally to avoid altering the clipping rectangle and minimize draw calls.");
for (int n = 0; n < 3; n++)
{
if (n > 0)
ImGui::SameLine();
ImGui::PushID(n);
ImGui::InvisibleButton("##canvas", size);
if (ImGui::IsItemActive() && ImGui::IsMouseDragging(ImGuiMouseButton_Left))
{
offset.x += ImGui::GetIO().MouseDelta.x;
offset.y += ImGui::GetIO().MouseDelta.y;
}
ImGui::PopID();
if (!ImGui::IsItemVisible()) // Skip rendering as ImDrawList elements are not clipped.
continue;
const ImVec2 p0 = ImGui::GetItemRectMin();
const ImVec2 p1 = ImGui::GetItemRectMax();
const char* text_str = "Line 1 hello\nLine 2 clip me!";
const ImVec2 text_pos = ImVec2(p0.x + offset.x, p0.y + offset.y);
ImDrawList* draw_list = ImGui::GetWindowDrawList();
switch (n)
{
case 0:
ImGui::PushClipRect(p0, p1, true);
draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
draw_list->AddText(text_pos, IM_COL32_WHITE, text_str);
ImGui::PopClipRect();
break;
case 1:
draw_list->PushClipRect(p0, p1, true);
draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
draw_list->AddText(text_pos, IM_COL32_WHITE, text_str);
draw_list->PopClipRect();
break;
case 2:
ImVec4 clip_rect(p0.x, p0.y, p1.x, p1.y); // AddText() takes a ImVec4* here so let's convert.
draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
draw_list->AddText(ImGui::GetFont(), ImGui::GetFontSize(), text_pos, IM_COL32_WHITE, text_str, NULL, 0.0f, &clip_rect);
break;
}
}
ImGui::TreePop();
}
}
static void ShowDemoWindowPopups()
{
IMGUI_DEMO_MARKER("Popups");
if (!ImGui::CollapsingHeader("Popups & Modal windows"))
return;
// The properties of popups windows are:
// - They block normal mouse hovering detection outside them. (*)
// - Unless modal, they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
// - Their visibility state (~bool) is held internally by Dear ImGui instead of being held by the programmer as
// we are used to with regular Begin() calls. User can manipulate the visibility state by calling OpenPopup().
// (*) One can use IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup) to bypass it and detect hovering even
// when normally blocked by a popup.
// Those three properties are connected. The library needs to hold their visibility state BECAUSE it can close
// popups at any time.
// Typical use for regular windows:
// bool my_tool_is_active = false; if (ImGui::Button("Open")) my_tool_is_active = true; [...] if (my_tool_is_active) Begin("My Tool", &my_tool_is_active) { [...] } End();
// Typical use for popups:
// if (ImGui::Button("Open")) ImGui::OpenPopup("MyPopup"); if (ImGui::BeginPopup("MyPopup") { [...] EndPopup(); }
// With popups we have to go through a library call (here OpenPopup) to manipulate the visibility state.
// This may be a bit confusing at first but it should quickly make sense. Follow on the examples below.
IMGUI_DEMO_MARKER("Popups/Popups");
if (ImGui::TreeNode("Popups"))
{
ImGui::TextWrapped(
"When a popup is active, it inhibits interacting with windows that are behind the popup. "
"Clicking outside the popup closes it.");
static int selected_fish = -1;
const char* names[] = { "Bream", "Haddock", "Mackerel", "Pollock", "Tilefish" };
static bool toggles[] = { true, false, false, false, false };
// Simple selection popup (if you want to show the current selection inside the Button itself,
// you may want to build a string using the "###" operator to preserve a constant ID with a variable label)
if (ImGui::Button("Select.."))
ImGui::OpenPopup("my_select_popup");
ImGui::SameLine();
ImGui::TextUnformatted(selected_fish == -1 ? "<None>" : names[selected_fish]);
if (ImGui::BeginPopup("my_select_popup"))
{
ImGui::SeparatorText("Aquarium");
for (int i = 0; i < IM_ARRAYSIZE(names); i++)
if (ImGui::Selectable(names[i]))
selected_fish = i;
ImGui::EndPopup();
}
// Showing a menu with toggles
if (ImGui::Button("Toggle.."))
ImGui::OpenPopup("my_toggle_popup");
if (ImGui::BeginPopup("my_toggle_popup"))
{
for (int i = 0; i < IM_ARRAYSIZE(names); i++)
ImGui::MenuItem(names[i], "", &toggles[i]);
if (ImGui::BeginMenu("Sub-menu"))
{
ImGui::MenuItem("Click me");
ImGui::EndMenu();
}
ImGui::Separator();
ImGui::Text("Tooltip here");
if (ImGui::IsItemHovered())
ImGui::SetTooltip("I am a tooltip over a popup");
if (ImGui::Button("Stacked Popup"))
ImGui::OpenPopup("another popup");
if (ImGui::BeginPopup("another popup"))
{
for (int i = 0; i < IM_ARRAYSIZE(names); i++)
ImGui::MenuItem(names[i], "", &toggles[i]);
if (ImGui::BeginMenu("Sub-menu"))
{
ImGui::MenuItem("Click me");
if (ImGui::Button("Stacked Popup"))
ImGui::OpenPopup("another popup");
if (ImGui::BeginPopup("another popup"))
{
ImGui::Text("I am the last one here.");
ImGui::EndPopup();
}
ImGui::EndMenu();
}
ImGui::EndPopup();
}
ImGui::EndPopup();
}
// Call the more complete ShowExampleMenuFile which we use in various places of this demo
if (ImGui::Button("With a menu.."))
ImGui::OpenPopup("my_file_popup");
if (ImGui::BeginPopup("my_file_popup", ImGuiWindowFlags_MenuBar))
{
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("File"))
{
ShowExampleMenuFile();
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Edit"))
{
ImGui::MenuItem("Dummy");
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
ImGui::Text("Hello from popup!");
ImGui::Button("This is a dummy button..");
ImGui::EndPopup();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Popups/Context menus");
if (ImGui::TreeNode("Context menus"))
{
HelpMarker("\"Context\" functions are simple helpers to associate a Popup to a given Item or Window identifier.");
// BeginPopupContextItem() is a helper to provide common/simple popup behavior of essentially doing:
// if (id == 0)
// id = GetItemID(); // Use last item id
// if (IsItemHovered() && IsMouseReleased(ImGuiMouseButton_Right))
// OpenPopup(id);
// return BeginPopup(id);
// For advanced uses you may want to replicate and customize this code.
// See more details in BeginPopupContextItem().
// Example 1
// When used after an item that has an ID (e.g. Button), we can skip providing an ID to BeginPopupContextItem(),
// and BeginPopupContextItem() will use the last item ID as the popup ID.
{
const char* names[5] = { "Label1", "Label2", "Label3", "Label4", "Label5" };
static int selected = -1;
for (int n = 0; n < 5; n++)
{
if (ImGui::Selectable(names[n], selected == n))
selected = n;
if (ImGui::BeginPopupContextItem()) // <-- use last item id as popup id
{
selected = n;
ImGui::Text("This a popup for \"%s\"!", names[n]);
if (ImGui::Button("Close"))
ImGui::CloseCurrentPopup();
ImGui::EndPopup();
}
if (ImGui::IsItemHovered())
ImGui::SetTooltip("Right-click to open popup");
}
}
// Example 2
// Popup on a Text() element which doesn't have an identifier: we need to provide an identifier to BeginPopupContextItem().
// Using an explicit identifier is also convenient if you want to activate the popups from different locations.
{
HelpMarker("Text() elements don't have stable identifiers so we need to provide one.");
static float value = 0.5f;
ImGui::Text("Value = %.3f <-- (1) right-click this text", value);
if (ImGui::BeginPopupContextItem("my popup"))
{
if (ImGui::Selectable("Set to zero")) value = 0.0f;
if (ImGui::Selectable("Set to PI")) value = 3.1415f;
ImGui::SetNextItemWidth(-FLT_MIN);
ImGui::DragFloat("##Value", &value, 0.1f, 0.0f, 0.0f);
ImGui::EndPopup();
}
// We can also use OpenPopupOnItemClick() to toggle the visibility of a given popup.
// Here we make it that right-clicking this other text element opens the same popup as above.
// The popup itself will be submitted by the code above.
ImGui::Text("(2) Or right-click this text");
ImGui::OpenPopupOnItemClick("my popup", ImGuiPopupFlags_MouseButtonRight);
// Back to square one: manually open the same popup.
if (ImGui::Button("(3) Or click this button"))
ImGui::OpenPopup("my popup");
}
// Example 3
// When using BeginPopupContextItem() with an implicit identifier (NULL == use last item ID),
// we need to make sure your item identifier is stable.
// In this example we showcase altering the item label while preserving its identifier, using the ### operator (see FAQ).
{
HelpMarker("Showcase using a popup ID linked to item ID, with the item having a changing label + stable ID using the ### operator.");
static char name[32] = "Label1";
char buf[64];
sprintf(buf, "Button: %s###Button", name); // ### operator override ID ignoring the preceding label
ImGui::Button(buf);
if (ImGui::BeginPopupContextItem())
{
ImGui::Text("Edit name:");
ImGui::InputText("##edit", name, IM_ARRAYSIZE(name));
if (ImGui::Button("Close"))
ImGui::CloseCurrentPopup();
ImGui::EndPopup();
}
ImGui::SameLine(); ImGui::Text("(<-- right-click here)");
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Popups/Modals");
if (ImGui::TreeNode("Modals"))
{
ImGui::TextWrapped("Modal windows are like popups but the user cannot close them by clicking outside.");
if (ImGui::Button("Delete.."))
ImGui::OpenPopup("Delete?");
// Always center this window when appearing
ImVec2 center = ImGui::GetMainViewport()->GetCenter();
ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
if (ImGui::BeginPopupModal("Delete?", NULL, ImGuiWindowFlags_AlwaysAutoResize))
{
ImGui::Text("All those beautiful files will be deleted.\nThis operation cannot be undone!");
ImGui::Separator();
//static int unused_i = 0;
//ImGui::Combo("Combo", &unused_i, "Delete\0Delete harder\0");
static bool dont_ask_me_next_time = false;
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
ImGui::Checkbox("Don't ask me next time", &dont_ask_me_next_time);
ImGui::PopStyleVar();
if (ImGui::Button("OK", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
ImGui::SetItemDefaultFocus();
ImGui::SameLine();
if (ImGui::Button("Cancel", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
ImGui::EndPopup();
}
if (ImGui::Button("Stacked modals.."))
ImGui::OpenPopup("Stacked 1");
if (ImGui::BeginPopupModal("Stacked 1", NULL, ImGuiWindowFlags_MenuBar))
{
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("File"))
{
if (ImGui::MenuItem("Some menu item")) {}
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
ImGui::Text("Hello from Stacked The First\nUsing style.Colors[ImGuiCol_ModalWindowDimBg] behind it.");
// Testing behavior of widgets stacking their own regular popups over the modal.
static int item = 1;
static float color[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
ImGui::Combo("Combo", &item, "aaaa\0bbbb\0cccc\0dddd\0eeee\0\0");
ImGui::ColorEdit4("color", color);
if (ImGui::Button("Add another modal.."))
ImGui::OpenPopup("Stacked 2");
// Also demonstrate passing a bool* to BeginPopupModal(), this will create a regular close button which
// will close the popup. Note that the visibility state of popups is owned by imgui, so the input value
// of the bool actually doesn't matter here.
bool unused_open = true;
if (ImGui::BeginPopupModal("Stacked 2", &unused_open))
{
ImGui::Text("Hello from Stacked The Second!");
if (ImGui::Button("Close"))
ImGui::CloseCurrentPopup();
ImGui::EndPopup();
}
if (ImGui::Button("Close"))
ImGui::CloseCurrentPopup();
ImGui::EndPopup();
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Popups/Menus inside a regular window");
if (ImGui::TreeNode("Menus inside a regular window"))
{
ImGui::TextWrapped("Below we are testing adding menu items to a regular window. It's rather unusual but should work!");
ImGui::Separator();
ImGui::MenuItem("Menu item", "CTRL+M");
if (ImGui::BeginMenu("Menu inside a regular window"))
{
ShowExampleMenuFile();
ImGui::EndMenu();
}
ImGui::Separator();
ImGui::TreePop();
}
}
// Dummy data structure that we use for the Table demo.
// (pre-C++11 doesn't allow us to instantiate ImVector<MyItem> template if this structure is defined inside the demo function)
namespace
{
// We are passing our own identifier to TableSetupColumn() to facilitate identifying columns in the sorting code.
// This identifier will be passed down into ImGuiTableSortSpec::ColumnUserID.
// But it is possible to omit the user id parameter of TableSetupColumn() and just use the column index instead! (ImGuiTableSortSpec::ColumnIndex)
// If you don't use sorting, you will generally never care about giving column an ID!
enum MyItemColumnID
{
MyItemColumnID_ID,
MyItemColumnID_Name,
MyItemColumnID_Action,
MyItemColumnID_Quantity,
MyItemColumnID_Description
};
struct MyItem
{
int ID;
const char* Name;
int Quantity;
// We have a problem which is affecting _only this demo_ and should not affect your code:
// As we don't rely on std:: or other third-party library to compile dear imgui, we only have reliable access to qsort(),
// however qsort doesn't allow passing user data to comparing function.
// As a workaround, we are storing the sort specs in a static/global for the comparing function to access.
// In your own use case you would probably pass the sort specs to your sorting/comparing functions directly and not use a global.
// We could technically call ImGui::TableGetSortSpecs() in CompareWithSortSpecs(), but considering that this function is called
// very often by the sorting algorithm it would be a little wasteful.
static const ImGuiTableSortSpecs* s_current_sort_specs;
// Compare function to be used by qsort()
static int IMGUI_CDECL CompareWithSortSpecs(const void* lhs, const void* rhs)
{
const MyItem* a = (const MyItem*)lhs;
const MyItem* b = (const MyItem*)rhs;
for (int n = 0; n < s_current_sort_specs->SpecsCount; n++)
{
// Here we identify columns using the ColumnUserID value that we ourselves passed to TableSetupColumn()
// We could also choose to identify columns based on their index (sort_spec->ColumnIndex), which is simpler!
const ImGuiTableColumnSortSpecs* sort_spec = &s_current_sort_specs->Specs[n];
int delta = 0;
switch (sort_spec->ColumnUserID)
{
case MyItemColumnID_ID: delta = (a->ID - b->ID); break;
case MyItemColumnID_Name: delta = (strcmp(a->Name, b->Name)); break;
case MyItemColumnID_Quantity: delta = (a->Quantity - b->Quantity); break;
case MyItemColumnID_Description: delta = (strcmp(a->Name, b->Name)); break;
default: IM_ASSERT(0); break;
}
if (delta > 0)
return (sort_spec->SortDirection == ImGuiSortDirection_Ascending) ? +1 : -1;
if (delta < 0)
return (sort_spec->SortDirection == ImGuiSortDirection_Ascending) ? -1 : +1;
}
// qsort() is instable so always return a way to differenciate items.
// Your own compare function may want to avoid fallback on implicit sort specs e.g. a Name compare if it wasn't already part of the sort specs.
return (a->ID - b->ID);
}
};
const ImGuiTableSortSpecs* MyItem::s_current_sort_specs = NULL;
}
// Make the UI compact because there are so many fields
static void PushStyleCompact()
{
ImGuiStyle& style = ImGui::GetStyle();
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(style.FramePadding.x, (float)(int)(style.FramePadding.y * 0.60f)));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x, (float)(int)(style.ItemSpacing.y * 0.60f)));
}
static void PopStyleCompact()
{
ImGui::PopStyleVar(2);
}
// Show a combo box with a choice of sizing policies
static void EditTableSizingFlags(ImGuiTableFlags* p_flags)
{
struct EnumDesc { ImGuiTableFlags Value; const char* Name; const char* Tooltip; };
static const EnumDesc policies[] =
{
{ ImGuiTableFlags_None, "Default", "Use default sizing policy:\n- ImGuiTableFlags_SizingFixedFit if ScrollX is on or if host window has ImGuiWindowFlags_AlwaysAutoResize.\n- ImGuiTableFlags_SizingStretchSame otherwise." },
{ ImGuiTableFlags_SizingFixedFit, "ImGuiTableFlags_SizingFixedFit", "Columns default to _WidthFixed (if resizable) or _WidthAuto (if not resizable), matching contents width." },
{ ImGuiTableFlags_SizingFixedSame, "ImGuiTableFlags_SizingFixedSame", "Columns are all the same width, matching the maximum contents width.\nImplicitly disable ImGuiTableFlags_Resizable and enable ImGuiTableFlags_NoKeepColumnsVisible." },
{ ImGuiTableFlags_SizingStretchProp, "ImGuiTableFlags_SizingStretchProp", "Columns default to _WidthStretch with weights proportional to their widths." },
{ ImGuiTableFlags_SizingStretchSame, "ImGuiTableFlags_SizingStretchSame", "Columns default to _WidthStretch with same weights." }
};
int idx;
for (idx = 0; idx < IM_ARRAYSIZE(policies); idx++)
if (policies[idx].Value == (*p_flags & ImGuiTableFlags_SizingMask_))
break;
const char* preview_text = (idx < IM_ARRAYSIZE(policies)) ? policies[idx].Name + (idx > 0 ? strlen("ImGuiTableFlags") : 0) : "";
if (ImGui::BeginCombo("Sizing Policy", preview_text))
{
for (int n = 0; n < IM_ARRAYSIZE(policies); n++)
if (ImGui::Selectable(policies[n].Name, idx == n))
*p_flags = (*p_flags & ~ImGuiTableFlags_SizingMask_) | policies[n].Value;
ImGui::EndCombo();
}
ImGui::SameLine();
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered() && ImGui::BeginTooltip())
{
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 50.0f);
for (int m = 0; m < IM_ARRAYSIZE(policies); m++)
{
ImGui::Separator();
ImGui::Text("%s:", policies[m].Name);
ImGui::Separator();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + ImGui::GetStyle().IndentSpacing * 0.5f);
ImGui::TextUnformatted(policies[m].Tooltip);
}
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
static void EditTableColumnsFlags(ImGuiTableColumnFlags* p_flags)
{
ImGui::CheckboxFlags("_Disabled", p_flags, ImGuiTableColumnFlags_Disabled); ImGui::SameLine(); HelpMarker("Master disable flag (also hide from context menu)");
ImGui::CheckboxFlags("_DefaultHide", p_flags, ImGuiTableColumnFlags_DefaultHide);
ImGui::CheckboxFlags("_DefaultSort", p_flags, ImGuiTableColumnFlags_DefaultSort);
if (ImGui::CheckboxFlags("_WidthStretch", p_flags, ImGuiTableColumnFlags_WidthStretch))
*p_flags &= ~(ImGuiTableColumnFlags_WidthMask_ ^ ImGuiTableColumnFlags_WidthStretch);
if (ImGui::CheckboxFlags("_WidthFixed", p_flags, ImGuiTableColumnFlags_WidthFixed))
*p_flags &= ~(ImGuiTableColumnFlags_WidthMask_ ^ ImGuiTableColumnFlags_WidthFixed);
ImGui::CheckboxFlags("_NoResize", p_flags, ImGuiTableColumnFlags_NoResize);
ImGui::CheckboxFlags("_NoReorder", p_flags, ImGuiTableColumnFlags_NoReorder);
ImGui::CheckboxFlags("_NoHide", p_flags, ImGuiTableColumnFlags_NoHide);
ImGui::CheckboxFlags("_NoClip", p_flags, ImGuiTableColumnFlags_NoClip);
ImGui::CheckboxFlags("_NoSort", p_flags, ImGuiTableColumnFlags_NoSort);
ImGui::CheckboxFlags("_NoSortAscending", p_flags, ImGuiTableColumnFlags_NoSortAscending);
ImGui::CheckboxFlags("_NoSortDescending", p_flags, ImGuiTableColumnFlags_NoSortDescending);
ImGui::CheckboxFlags("_NoHeaderLabel", p_flags, ImGuiTableColumnFlags_NoHeaderLabel);
ImGui::CheckboxFlags("_NoHeaderWidth", p_flags, ImGuiTableColumnFlags_NoHeaderWidth);
ImGui::CheckboxFlags("_PreferSortAscending", p_flags, ImGuiTableColumnFlags_PreferSortAscending);
ImGui::CheckboxFlags("_PreferSortDescending", p_flags, ImGuiTableColumnFlags_PreferSortDescending);
ImGui::CheckboxFlags("_IndentEnable", p_flags, ImGuiTableColumnFlags_IndentEnable); ImGui::SameLine(); HelpMarker("Default for column 0");
ImGui::CheckboxFlags("_IndentDisable", p_flags, ImGuiTableColumnFlags_IndentDisable); ImGui::SameLine(); HelpMarker("Default for column >0");
}
static void ShowTableColumnsStatusFlags(ImGuiTableColumnFlags flags)
{
ImGui::CheckboxFlags("_IsEnabled", &flags, ImGuiTableColumnFlags_IsEnabled);
ImGui::CheckboxFlags("_IsVisible", &flags, ImGuiTableColumnFlags_IsVisible);
ImGui::CheckboxFlags("_IsSorted", &flags, ImGuiTableColumnFlags_IsSorted);
ImGui::CheckboxFlags("_IsHovered", &flags, ImGuiTableColumnFlags_IsHovered);
}
static void ShowDemoWindowTables()
{
//ImGui::SetNextItemOpen(true, ImGuiCond_Once);
IMGUI_DEMO_MARKER("Tables");
if (!ImGui::CollapsingHeader("Tables & Columns"))
return;
// Using those as a base value to create width/height that are factor of the size of our font
const float TEXT_BASE_WIDTH = ImGui::CalcTextSize("A").x;
const float TEXT_BASE_HEIGHT = ImGui::GetTextLineHeightWithSpacing();
ImGui::PushID("Tables");
int open_action = -1;
if (ImGui::Button("Open all"))
open_action = 1;
ImGui::SameLine();
if (ImGui::Button("Close all"))
open_action = 0;
ImGui::SameLine();
// Options
static bool disable_indent = false;
ImGui::Checkbox("Disable tree indentation", &disable_indent);
ImGui::SameLine();
HelpMarker("Disable the indenting of tree nodes so demo tables can use the full window width.");
ImGui::Separator();
if (disable_indent)
ImGui::PushStyleVar(ImGuiStyleVar_IndentSpacing, 0.0f);
// About Styling of tables
// Most settings are configured on a per-table basis via the flags passed to BeginTable() and TableSetupColumns APIs.
// There are however a few settings that a shared and part of the ImGuiStyle structure:
// style.CellPadding // Padding within each cell
// style.Colors[ImGuiCol_TableHeaderBg] // Table header background
// style.Colors[ImGuiCol_TableBorderStrong] // Table outer and header borders
// style.Colors[ImGuiCol_TableBorderLight] // Table inner borders
// style.Colors[ImGuiCol_TableRowBg] // Table row background when ImGuiTableFlags_RowBg is enabled (even rows)
// style.Colors[ImGuiCol_TableRowBgAlt] // Table row background when ImGuiTableFlags_RowBg is enabled (odds rows)
// Demos
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Basic");
if (ImGui::TreeNode("Basic"))
{
// Here we will showcase three different ways to output a table.
// They are very simple variations of a same thing!
// [Method 1] Using TableNextRow() to create a new row, and TableSetColumnIndex() to select the column.
// In many situations, this is the most flexible and easy to use pattern.
HelpMarker("Using TableNextRow() + calling TableSetColumnIndex() _before_ each cell, in a loop.");
if (ImGui::BeginTable("table1", 3))
{
for (int row = 0; row < 4; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Row %d Column %d", row, column);
}
}
ImGui::EndTable();
}
// [Method 2] Using TableNextColumn() called multiple times, instead of using a for loop + TableSetColumnIndex().
// This is generally more convenient when you have code manually submitting the contents of each column.
HelpMarker("Using TableNextRow() + calling TableNextColumn() _before_ each cell, manually.");
if (ImGui::BeginTable("table2", 3))
{
for (int row = 0; row < 4; row++)
{
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("Row %d", row);
ImGui::TableNextColumn();
ImGui::Text("Some contents");
ImGui::TableNextColumn();
ImGui::Text("123.456");
}
ImGui::EndTable();
}
// [Method 3] We call TableNextColumn() _before_ each cell. We never call TableNextRow(),
// as TableNextColumn() will automatically wrap around and create new rows as needed.
// This is generally more convenient when your cells all contains the same type of data.
HelpMarker(
"Only using TableNextColumn(), which tends to be convenient for tables where every cell contains the same type of contents.\n"
"This is also more similar to the old NextColumn() function of the Columns API, and provided to facilitate the Columns->Tables API transition.");
if (ImGui::BeginTable("table3", 3))
{
for (int item = 0; item < 14; item++)
{
ImGui::TableNextColumn();
ImGui::Text("Item %d", item);
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Borders, background");
if (ImGui::TreeNode("Borders, background"))
{
// Expose a few Borders related flags interactively
enum ContentsType { CT_Text, CT_FillButton };
static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg;
static bool display_headers = false;
static int contents_type = CT_Text;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags, ImGuiTableFlags_RowBg);
ImGui::CheckboxFlags("ImGuiTableFlags_Borders", &flags, ImGuiTableFlags_Borders);
ImGui::SameLine(); HelpMarker("ImGuiTableFlags_Borders\n = ImGuiTableFlags_BordersInnerV\n | ImGuiTableFlags_BordersOuterV\n | ImGuiTableFlags_BordersInnerV\n | ImGuiTableFlags_BordersOuterH");
ImGui::Indent();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", &flags, ImGuiTableFlags_BordersH);
ImGui::Indent();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", &flags, ImGuiTableFlags_BordersOuterH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", &flags, ImGuiTableFlags_BordersInnerH);
ImGui::Unindent();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
ImGui::Indent();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
ImGui::Unindent();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuter", &flags, ImGuiTableFlags_BordersOuter);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInner", &flags, ImGuiTableFlags_BordersInner);
ImGui::Unindent();
ImGui::AlignTextToFramePadding(); ImGui::Text("Cell contents:");
ImGui::SameLine(); ImGui::RadioButton("Text", &contents_type, CT_Text);
ImGui::SameLine(); ImGui::RadioButton("FillButton", &contents_type, CT_FillButton);
ImGui::Checkbox("Display headers", &display_headers);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", &flags, ImGuiTableFlags_NoBordersInBody); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body (borders will always appear in Headers");
PopStyleCompact();
if (ImGui::BeginTable("table1", 3, flags))
{
// Display headers so we can inspect their interaction with borders.
// (Headers are not the main purpose of this section of the demo, so we are not elaborating on them too much. See other sections for details)
if (display_headers)
{
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableHeadersRow();
}
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
char buf[32];
sprintf(buf, "Hello %d,%d", column, row);
if (contents_type == CT_Text)
ImGui::TextUnformatted(buf);
else if (contents_type == CT_FillButton)
ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Resizable, stretch");
if (ImGui::TreeNode("Resizable, stretch"))
{
// By default, if we don't enable ScrollX the sizing policy for each column is "Stretch"
// All columns maintain a sizing weight, and they will occupy all available width.
static ImGuiTableFlags flags = ImGuiTableFlags_SizingStretchSame | ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
ImGui::SameLine(); HelpMarker("Using the _Resizable flag automatically enables the _BordersInnerV flag as well, this is why the resize borders are still showing when unchecking this.");
PopStyleCompact();
if (ImGui::BeginTable("table1", 3, flags))
{
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Hello %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Resizable, fixed");
if (ImGui::TreeNode("Resizable, fixed"))
{
// Here we use ImGuiTableFlags_SizingFixedFit (even though _ScrollX is not set)
// So columns will adopt the "Fixed" policy and will maintain a fixed width regardless of the whole available width (unless table is small)
// If there is not enough available width to fit all columns, they will however be resized down.
// FIXME-TABLE: Providing a stretch-on-init would make sense especially for tables which don't have saved settings
HelpMarker(
"Using _Resizable + _SizingFixedFit flags.\n"
"Fixed-width columns generally makes more sense if you want to use horizontal scrolling.\n\n"
"Double-click a column border to auto-fit the column to its contents.");
PushStyleCompact();
static ImGuiTableFlags flags = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags, ImGuiTableFlags_NoHostExtendX);
PopStyleCompact();
if (ImGui::BeginTable("table1", 3, flags))
{
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Hello %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Resizable, mixed");
if (ImGui::TreeNode("Resizable, mixed"))
{
HelpMarker(
"Using TableSetupColumn() to alter resizing policy on a per-column basis.\n\n"
"When combining Fixed and Stretch columns, generally you only want one, maybe two trailing columns to use _WidthStretch.");
static ImGuiTableFlags flags = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg | ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
if (ImGui::BeginTable("table1", 3, flags))
{
ImGui::TableSetupColumn("AAA", ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("BBB", ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("CCC", ImGuiTableColumnFlags_WidthStretch);
ImGui::TableHeadersRow();
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("%s %d,%d", (column == 2) ? "Stretch" : "Fixed", column, row);
}
}
ImGui::EndTable();
}
if (ImGui::BeginTable("table2", 6, flags))
{
ImGui::TableSetupColumn("AAA", ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("BBB", ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("CCC", ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_DefaultHide);
ImGui::TableSetupColumn("DDD", ImGuiTableColumnFlags_WidthStretch);
ImGui::TableSetupColumn("EEE", ImGuiTableColumnFlags_WidthStretch);
ImGui::TableSetupColumn("FFF", ImGuiTableColumnFlags_WidthStretch | ImGuiTableColumnFlags_DefaultHide);
ImGui::TableHeadersRow();
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 6; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("%s %d,%d", (column >= 3) ? "Stretch" : "Fixed", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Reorderable, hideable, with headers");
if (ImGui::TreeNode("Reorderable, hideable, with headers"))
{
HelpMarker(
"Click and drag column headers to reorder columns.\n\n"
"Right-click on a header to open a context menu.");
static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_Reorderable", &flags, ImGuiTableFlags_Reorderable);
ImGui::CheckboxFlags("ImGuiTableFlags_Hideable", &flags, ImGuiTableFlags_Hideable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", &flags, ImGuiTableFlags_NoBordersInBody);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags, ImGuiTableFlags_NoBordersInBodyUntilResize); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body until hovered for resize (borders will always appear in Headers)");
PopStyleCompact();
if (ImGui::BeginTable("table1", 3, flags))
{
// Submit columns name with TableSetupColumn() and call TableHeadersRow() to create a row with a header in each column.
// (Later we will show how TableSetupColumn() has other uses, optional flags, sizing weight etc.)
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableHeadersRow();
for (int row = 0; row < 6; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Hello %d,%d", column, row);
}
}
ImGui::EndTable();
}
// Use outer_size.x == 0.0f instead of default to make the table as tight as possible (only valid when no scrolling and no stretch column)
if (ImGui::BeginTable("table2", 3, flags | ImGuiTableFlags_SizingFixedFit, ImVec2(0.0f, 0.0f)))
{
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableHeadersRow();
for (int row = 0; row < 6; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Fixed %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Padding");
if (ImGui::TreeNode("Padding"))
{
// First example: showcase use of padding flags and effect of BorderOuterV/BorderInnerV on X padding.
// We don't expose BorderOuterH/BorderInnerH here because they have no effect on X padding.
HelpMarker(
"We often want outer padding activated when any using features which makes the edges of a column visible:\n"
"e.g.:\n"
"- BorderOuterV\n"
"- any form of row selection\n"
"Because of this, activating BorderOuterV sets the default to PadOuterX. Using PadOuterX or NoPadOuterX you can override the default.\n\n"
"Actual padding values are using style.CellPadding.\n\n"
"In this demo we don't show horizontal borders to emphasize how they don't affect default horizontal padding.");
static ImGuiTableFlags flags1 = ImGuiTableFlags_BordersV;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_PadOuterX", &flags1, ImGuiTableFlags_PadOuterX);
ImGui::SameLine(); HelpMarker("Enable outer-most padding (default if ImGuiTableFlags_BordersOuterV is set)");
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadOuterX", &flags1, ImGuiTableFlags_NoPadOuterX);
ImGui::SameLine(); HelpMarker("Disable outer-most padding (default if ImGuiTableFlags_BordersOuterV is not set)");
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadInnerX", &flags1, ImGuiTableFlags_NoPadInnerX);
ImGui::SameLine(); HelpMarker("Disable inner padding between columns (double inner padding if BordersOuterV is on, single inner padding if BordersOuterV is off)");
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags1, ImGuiTableFlags_BordersOuterV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags1, ImGuiTableFlags_BordersInnerV);
static bool show_headers = false;
ImGui::Checkbox("show_headers", &show_headers);
PopStyleCompact();
if (ImGui::BeginTable("table_padding", 3, flags1))
{
if (show_headers)
{
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableHeadersRow();
}
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
{
ImGui::Text("Avail %.2f", ImGui::GetContentRegionAvail().x);
}
else
{
char buf[32];
sprintf(buf, "Hello %d,%d", column, row);
ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
}
//if (ImGui::TableGetColumnFlags() & ImGuiTableColumnFlags_IsHovered)
// ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, IM_COL32(0, 100, 0, 255));
}
}
ImGui::EndTable();
}
// Second example: set style.CellPadding to (0.0) or a custom value.
// FIXME-TABLE: Vertical border effectively not displayed the same way as horizontal one...
HelpMarker("Setting style.CellPadding to (0,0) or a custom value.");
static ImGuiTableFlags flags2 = ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg;
static ImVec2 cell_padding(0.0f, 0.0f);
static bool show_widget_frame_bg = true;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Borders", &flags2, ImGuiTableFlags_Borders);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", &flags2, ImGuiTableFlags_BordersH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags2, ImGuiTableFlags_BordersV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInner", &flags2, ImGuiTableFlags_BordersInner);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuter", &flags2, ImGuiTableFlags_BordersOuter);
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags2, ImGuiTableFlags_RowBg);
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags2, ImGuiTableFlags_Resizable);
ImGui::Checkbox("show_widget_frame_bg", &show_widget_frame_bg);
ImGui::SliderFloat2("CellPadding", &cell_padding.x, 0.0f, 10.0f, "%.0f");
PopStyleCompact();
ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, cell_padding);
if (ImGui::BeginTable("table_padding_2", 3, flags2))
{
static char text_bufs[3 * 5][16]; // Mini text storage for 3x5 cells
static bool init = true;
if (!show_widget_frame_bg)
ImGui::PushStyleColor(ImGuiCol_FrameBg, 0);
for (int cell = 0; cell < 3 * 5; cell++)
{
ImGui::TableNextColumn();
if (init)
strcpy(text_bufs[cell], "edit me");
ImGui::SetNextItemWidth(-FLT_MIN);
ImGui::PushID(cell);
ImGui::InputText("##cell", text_bufs[cell], IM_ARRAYSIZE(text_bufs[cell]));
ImGui::PopID();
}
if (!show_widget_frame_bg)
ImGui::PopStyleColor();
init = false;
ImGui::EndTable();
}
ImGui::PopStyleVar();
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Explicit widths");
if (ImGui::TreeNode("Sizing policies"))
{
static ImGuiTableFlags flags1 = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_RowBg | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags1, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags1, ImGuiTableFlags_NoHostExtendX);
PopStyleCompact();
static ImGuiTableFlags sizing_policy_flags[4] = { ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_SizingFixedSame, ImGuiTableFlags_SizingStretchProp, ImGuiTableFlags_SizingStretchSame };
for (int table_n = 0; table_n < 4; table_n++)
{
ImGui::PushID(table_n);
ImGui::SetNextItemWidth(TEXT_BASE_WIDTH * 30);
EditTableSizingFlags(&sizing_policy_flags[table_n]);
// To make it easier to understand the different sizing policy,
// For each policy: we display one table where the columns have equal contents width, and one where the columns have different contents width.
if (ImGui::BeginTable("table1", 3, sizing_policy_flags[table_n] | flags1))
{
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
ImGui::TableNextColumn(); ImGui::Text("Oh dear");
ImGui::TableNextColumn(); ImGui::Text("Oh dear");
ImGui::TableNextColumn(); ImGui::Text("Oh dear");
}
ImGui::EndTable();
}
if (ImGui::BeginTable("table2", 3, sizing_policy_flags[table_n] | flags1))
{
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
ImGui::TableNextColumn(); ImGui::Text("AAAA");
ImGui::TableNextColumn(); ImGui::Text("BBBBBBBB");
ImGui::TableNextColumn(); ImGui::Text("CCCCCCCCCCCC");
}
ImGui::EndTable();
}
ImGui::PopID();
}
ImGui::Spacing();
ImGui::TextUnformatted("Advanced");
ImGui::SameLine();
HelpMarker("This section allows you to interact and see the effect of various sizing policies depending on whether Scroll is enabled and the contents of your columns.");
enum ContentsType { CT_ShowWidth, CT_ShortText, CT_LongText, CT_Button, CT_FillButton, CT_InputText };
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_Resizable;
static int contents_type = CT_ShowWidth;
static int column_count = 3;
PushStyleCompact();
ImGui::PushID("Advanced");
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
EditTableSizingFlags(&flags);
ImGui::Combo("Contents", &contents_type, "Show width\0Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
if (contents_type == CT_FillButton)
{
ImGui::SameLine();
HelpMarker("Be mindful that using right-alignment (e.g. size.x = -FLT_MIN) creates a feedback loop where contents width can feed into auto-column width can feed into contents width.");
}
ImGui::DragInt("Columns", &column_count, 0.1f, 1, 64, "%d", ImGuiSliderFlags_AlwaysClamp);
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_PreciseWidths", &flags, ImGuiTableFlags_PreciseWidths);
ImGui::SameLine(); HelpMarker("Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.");
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
ImGui::PopItemWidth();
ImGui::PopID();
PopStyleCompact();
if (ImGui::BeginTable("table2", column_count, flags, ImVec2(0.0f, TEXT_BASE_HEIGHT * 7)))
{
for (int cell = 0; cell < 10 * column_count; cell++)
{
ImGui::TableNextColumn();
int column = ImGui::TableGetColumnIndex();
int row = ImGui::TableGetRowIndex();
ImGui::PushID(cell);
char label[32];
static char text_buf[32] = "";
sprintf(label, "Hello %d,%d", column, row);
switch (contents_type)
{
case CT_ShortText: ImGui::TextUnformatted(label); break;
case CT_LongText: ImGui::Text("Some %s text %d,%d\nOver two lines..", column == 0 ? "long" : "longeeer", column, row); break;
case CT_ShowWidth: ImGui::Text("W: %.1f", ImGui::GetContentRegionAvail().x); break;
case CT_Button: ImGui::Button(label); break;
case CT_FillButton: ImGui::Button(label, ImVec2(-FLT_MIN, 0.0f)); break;
case CT_InputText: ImGui::SetNextItemWidth(-FLT_MIN); ImGui::InputText("##", text_buf, IM_ARRAYSIZE(text_buf)); break;
}
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Vertical scrolling, with clipping");
if (ImGui::TreeNode("Vertical scrolling, with clipping"))
{
HelpMarker("Here we activate ScrollY, which will create a child window container to allow hosting scrollable contents.\n\nWe also demonstrate using ImGuiListClipper to virtualize the submission of many items.");
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
PopStyleCompact();
// When using ScrollX or ScrollY we need to specify a size for our table container!
// Otherwise by default the table will fit all available space, like a BeginChild() call.
ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 8);
if (ImGui::BeginTable("table_scrolly", 3, flags, outer_size))
{
ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
ImGui::TableSetupColumn("One", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Two", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Three", ImGuiTableColumnFlags_None);
ImGui::TableHeadersRow();
// Demonstrate using clipper for large vertical lists
ImGuiListClipper clipper;
clipper.Begin(1000);
while (clipper.Step())
{
for (int row = clipper.DisplayStart; row < clipper.DisplayEnd; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Hello %d,%d", column, row);
}
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Horizontal scrolling");
if (ImGui::TreeNode("Horizontal scrolling"))
{
HelpMarker(
"When ScrollX is enabled, the default sizing policy becomes ImGuiTableFlags_SizingFixedFit, "
"as automatically stretching columns doesn't make much sense with horizontal scrolling.\n\n"
"Also note that as of the current version, you will almost always want to enable ScrollY along with ScrollX,"
"because the container window won't automatically extend vertically to fix contents (this may be improved in future versions).");
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
static int freeze_cols = 1;
static int freeze_rows = 1;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_cols", &freeze_cols, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_rows", &freeze_rows, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
PopStyleCompact();
// When using ScrollX or ScrollY we need to specify a size for our table container!
// Otherwise by default the table will fit all available space, like a BeginChild() call.
ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 8);
if (ImGui::BeginTable("table_scrollx", 7, flags, outer_size))
{
ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
ImGui::TableSetupColumn("Line #", ImGuiTableColumnFlags_NoHide); // Make the first column not hideable to match our use of TableSetupScrollFreeze()
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableSetupColumn("Four");
ImGui::TableSetupColumn("Five");
ImGui::TableSetupColumn("Six");
ImGui::TableHeadersRow();
for (int row = 0; row < 20; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 7; column++)
{
// Both TableNextColumn() and TableSetColumnIndex() return true when a column is visible or performing width measurement.
// Because here we know that:
// - A) all our columns are contributing the same to row height
// - B) column 0 is always visible,
// We only always submit this one column and can skip others.
// More advanced per-column clipping behaviors may benefit from polling the status flags via TableGetColumnFlags().
if (!ImGui::TableSetColumnIndex(column) && column > 0)
continue;
if (column == 0)
ImGui::Text("Line %d", row);
else
ImGui::Text("Hello world %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::Spacing();
ImGui::TextUnformatted("Stretch + ScrollX");
ImGui::SameLine();
HelpMarker(
"Showcase using Stretch columns + ScrollX together: "
"this is rather unusual and only makes sense when specifying an 'inner_width' for the table!\n"
"Without an explicit value, inner_width is == outer_size.x and therefore using Stretch columns + ScrollX together doesn't make sense.");
static ImGuiTableFlags flags2 = ImGuiTableFlags_SizingStretchSame | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg | ImGuiTableFlags_ContextMenuInBody;
static float inner_width = 1000.0f;
PushStyleCompact();
ImGui::PushID("flags3");
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags2, ImGuiTableFlags_ScrollX);
ImGui::DragFloat("inner_width", &inner_width, 1.0f, 0.0f, FLT_MAX, "%.1f");
ImGui::PopItemWidth();
ImGui::PopID();
PopStyleCompact();
if (ImGui::BeginTable("table2", 7, flags2, outer_size, inner_width))
{
for (int cell = 0; cell < 20 * 7; cell++)
{
ImGui::TableNextColumn();
ImGui::Text("Hello world %d,%d", ImGui::TableGetColumnIndex(), ImGui::TableGetRowIndex());
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Columns flags");
if (ImGui::TreeNode("Columns flags"))
{
// Create a first table just to show all the options/flags we want to make visible in our example!
const int column_count = 3;
const char* column_names[column_count] = { "One", "Two", "Three" };
static ImGuiTableColumnFlags column_flags[column_count] = { ImGuiTableColumnFlags_DefaultSort, ImGuiTableColumnFlags_None, ImGuiTableColumnFlags_DefaultHide };
static ImGuiTableColumnFlags column_flags_out[column_count] = { 0, 0, 0 }; // Output from TableGetColumnFlags()
if (ImGui::BeginTable("table_columns_flags_checkboxes", column_count, ImGuiTableFlags_None))
{
PushStyleCompact();
for (int column = 0; column < column_count; column++)
{
ImGui::TableNextColumn();
ImGui::PushID(column);
ImGui::AlignTextToFramePadding(); // FIXME-TABLE: Workaround for wrong text baseline propagation across columns
ImGui::Text("'%s'", column_names[column]);
ImGui::Spacing();
ImGui::Text("Input flags:");
EditTableColumnsFlags(&column_flags[column]);
ImGui::Spacing();
ImGui::Text("Output flags:");
ImGui::BeginDisabled();
ShowTableColumnsStatusFlags(column_flags_out[column]);
ImGui::EndDisabled();
ImGui::PopID();
}
PopStyleCompact();
ImGui::EndTable();
}
// Create the real table we care about for the example!
// We use a scrolling table to be able to showcase the difference between the _IsEnabled and _IsVisible flags above, otherwise in
// a non-scrolling table columns are always visible (unless using ImGuiTableFlags_NoKeepColumnsVisible + resizing the parent window down)
const ImGuiTableFlags flags
= ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY
| ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV
| ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Sortable;
ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 9);
if (ImGui::BeginTable("table_columns_flags", column_count, flags, outer_size))
{
for (int column = 0; column < column_count; column++)
ImGui::TableSetupColumn(column_names[column], column_flags[column]);
ImGui::TableHeadersRow();
for (int column = 0; column < column_count; column++)
column_flags_out[column] = ImGui::TableGetColumnFlags(column);
float indent_step = (float)((int)TEXT_BASE_WIDTH / 2);
for (int row = 0; row < 8; row++)
{
ImGui::Indent(indent_step); // Add some indentation to demonstrate usage of per-column IndentEnable/IndentDisable flags.
ImGui::TableNextRow();
for (int column = 0; column < column_count; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("%s %s", (column == 0) ? "Indented" : "Hello", ImGui::TableGetColumnName(column));
}
}
ImGui::Unindent(indent_step * 8.0f);
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Columns widths");
if (ImGui::TreeNode("Columns widths"))
{
HelpMarker("Using TableSetupColumn() to setup default width.");
static ImGuiTableFlags flags1 = ImGuiTableFlags_Borders | ImGuiTableFlags_NoBordersInBodyUntilResize;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags1, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags1, ImGuiTableFlags_NoBordersInBodyUntilResize);
PopStyleCompact();
if (ImGui::BeginTable("table1", 3, flags1))
{
// We could also set ImGuiTableFlags_SizingFixedFit on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("one", ImGuiTableColumnFlags_WidthFixed, 100.0f); // Default to 100.0f
ImGui::TableSetupColumn("two", ImGuiTableColumnFlags_WidthFixed, 200.0f); // Default to 200.0f
ImGui::TableSetupColumn("three", ImGuiTableColumnFlags_WidthFixed); // Default to auto
ImGui::TableHeadersRow();
for (int row = 0; row < 4; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
ImGui::Text("(w: %5.1f)", ImGui::GetContentRegionAvail().x);
else
ImGui::Text("Hello %d,%d", column, row);
}
}
ImGui::EndTable();
}
HelpMarker("Using TableSetupColumn() to setup explicit width.\n\nUnless _NoKeepColumnsVisible is set, fixed columns with set width may still be shrunk down if there's not enough space in the host.");
static ImGuiTableFlags flags2 = ImGuiTableFlags_None;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags2, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags2, ImGuiTableFlags_BordersInnerV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags2, ImGuiTableFlags_BordersOuterV);
PopStyleCompact();
if (ImGui::BeginTable("table2", 4, flags2))
{
// We could also set ImGuiTableFlags_SizingFixedFit on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 30.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 4; column++)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
ImGui::Text("(w: %5.1f)", ImGui::GetContentRegionAvail().x);
else
ImGui::Text("Hello %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Nested tables");
if (ImGui::TreeNode("Nested tables"))
{
HelpMarker("This demonstrates embedding a table into another table cell.");
if (ImGui::BeginTable("table_nested1", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
{
ImGui::TableSetupColumn("A0");
ImGui::TableSetupColumn("A1");
ImGui::TableHeadersRow();
ImGui::TableNextColumn();
ImGui::Text("A0 Row 0");
{
float rows_height = TEXT_BASE_HEIGHT * 2;
if (ImGui::BeginTable("table_nested2", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
{
ImGui::TableSetupColumn("B0");
ImGui::TableSetupColumn("B1");
ImGui::TableHeadersRow();
ImGui::TableNextRow(ImGuiTableRowFlags_None, rows_height);
ImGui::TableNextColumn();
ImGui::Text("B0 Row 0");
ImGui::TableNextColumn();
ImGui::Text("B1 Row 0");
ImGui::TableNextRow(ImGuiTableRowFlags_None, rows_height);
ImGui::TableNextColumn();
ImGui::Text("B0 Row 1");
ImGui::TableNextColumn();
ImGui::Text("B1 Row 1");
ImGui::EndTable();
}
}
ImGui::TableNextColumn(); ImGui::Text("A1 Row 0");
ImGui::TableNextColumn(); ImGui::Text("A0 Row 1");
ImGui::TableNextColumn(); ImGui::Text("A1 Row 1");
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Row height");
if (ImGui::TreeNode("Row height"))
{
HelpMarker("You can pass a 'min_row_height' to TableNextRow().\n\nRows are padded with 'style.CellPadding.y' on top and bottom, so effectively the minimum row height will always be >= 'style.CellPadding.y * 2.0f'.\n\nWe cannot honor a _maximum_ row height as that would require a unique clipping rectangle per row.");
if (ImGui::BeginTable("table_row_height", 1, ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersInnerV))
{
for (int row = 0; row < 10; row++)
{
float min_row_height = (float)(int)(TEXT_BASE_HEIGHT * 0.30f * row);
ImGui::TableNextRow(ImGuiTableRowFlags_None, min_row_height);
ImGui::TableNextColumn();
ImGui::Text("min_row_height = %.2f", min_row_height);
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Outer size");
if (ImGui::TreeNode("Outer size"))
{
// Showcasing use of ImGuiTableFlags_NoHostExtendX and ImGuiTableFlags_NoHostExtendY
// Important to that note how the two flags have slightly different behaviors!
ImGui::Text("Using NoHostExtendX and NoHostExtendY:");
PushStyleCompact();
static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_ContextMenuInBody | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_NoHostExtendX;
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags, ImGuiTableFlags_NoHostExtendX);
ImGui::SameLine(); HelpMarker("Make outer width auto-fit to columns, overriding outer_size.x value.\n\nOnly available when ScrollX/ScrollY are disabled and Stretch columns are not used.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendY", &flags, ImGuiTableFlags_NoHostExtendY);
ImGui::SameLine(); HelpMarker("Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit).\n\nOnly available when ScrollX/ScrollY are disabled. Data below the limit will be clipped and not visible.");
PopStyleCompact();
ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 5.5f);
if (ImGui::BeginTable("table1", 3, flags, outer_size))
{
for (int row = 0; row < 10; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableNextColumn();
ImGui::Text("Cell %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::SameLine();
ImGui::Text("Hello!");
ImGui::Spacing();
ImGui::Text("Using explicit size:");
if (ImGui::BeginTable("table2", 3, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg, ImVec2(TEXT_BASE_WIDTH * 30, 0.0f)))
{
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableNextColumn();
ImGui::Text("Cell %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::SameLine();
if (ImGui::BeginTable("table3", 3, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg, ImVec2(TEXT_BASE_WIDTH * 30, 0.0f)))
{
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow(0, TEXT_BASE_HEIGHT * 1.5f);
for (int column = 0; column < 3; column++)
{
ImGui::TableNextColumn();
ImGui::Text("Cell %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Background color");
if (ImGui::TreeNode("Background color"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_RowBg;
static int row_bg_type = 1;
static int row_bg_target = 1;
static int cell_bg_type = 1;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Borders", &flags, ImGuiTableFlags_Borders);
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags, ImGuiTableFlags_RowBg);
ImGui::SameLine(); HelpMarker("ImGuiTableFlags_RowBg automatically sets RowBg0 to alternative colors pulled from the Style.");
ImGui::Combo("row bg type", (int*)&row_bg_type, "None\0Red\0Gradient\0");
ImGui::Combo("row bg target", (int*)&row_bg_target, "RowBg0\0RowBg1\0"); ImGui::SameLine(); HelpMarker("Target RowBg0 to override the alternating odd/even colors,\nTarget RowBg1 to blend with them.");
ImGui::Combo("cell bg type", (int*)&cell_bg_type, "None\0Blue\0"); ImGui::SameLine(); HelpMarker("We are colorizing cells to B1->C2 here.");
IM_ASSERT(row_bg_type >= 0 && row_bg_type <= 2);
IM_ASSERT(row_bg_target >= 0 && row_bg_target <= 1);
IM_ASSERT(cell_bg_type >= 0 && cell_bg_type <= 1);
PopStyleCompact();
if (ImGui::BeginTable("table1", 5, flags))
{
for (int row = 0; row < 6; row++)
{
ImGui::TableNextRow();
// Demonstrate setting a row background color with 'ImGui::TableSetBgColor(ImGuiTableBgTarget_RowBgX, ...)'
// We use a transparent color so we can see the one behind in case our target is RowBg1 and RowBg0 was already targeted by the ImGuiTableFlags_RowBg flag.
if (row_bg_type != 0)
{
ImU32 row_bg_color = ImGui::GetColorU32(row_bg_type == 1 ? ImVec4(0.7f, 0.3f, 0.3f, 0.65f) : ImVec4(0.2f + row * 0.1f, 0.2f, 0.2f, 0.65f)); // Flat or Gradient?
ImGui::TableSetBgColor(ImGuiTableBgTarget_RowBg0 + row_bg_target, row_bg_color);
}
// Fill cells
for (int column = 0; column < 5; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("%c%c", 'A' + row, '0' + column);
// Change background of Cells B1->C2
// Demonstrate setting a cell background color with 'ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, ...)'
// (the CellBg color will be blended over the RowBg and ColumnBg colors)
// We can also pass a column number as a third parameter to TableSetBgColor() and do this outside the column loop.
if (row >= 1 && row <= 2 && column >= 1 && column <= 2 && cell_bg_type == 1)
{
ImU32 cell_bg_color = ImGui::GetColorU32(ImVec4(0.3f, 0.3f, 0.7f, 0.65f));
ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, cell_bg_color);
}
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Tree view");
if (ImGui::TreeNode("Tree view"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg | ImGuiTableFlags_NoBordersInBody;
if (ImGui::BeginTable("3ways", 3, flags))
{
// The first column will use the default _WidthStretch when ScrollX is Off and _WidthFixed when ScrollX is On
ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_NoHide);
ImGui::TableSetupColumn("Size", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 12.0f);
ImGui::TableSetupColumn("Type", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 18.0f);
ImGui::TableHeadersRow();
// Simple storage to output a dummy file-system.
struct MyTreeNode
{
const char* Name;
const char* Type;
int Size;
int ChildIdx;
int ChildCount;
static void DisplayNode(const MyTreeNode* node, const MyTreeNode* all_nodes)
{
ImGui::TableNextRow();
ImGui::TableNextColumn();
const bool is_folder = (node->ChildCount > 0);
if (is_folder)
{
bool open = ImGui::TreeNodeEx(node->Name, ImGuiTreeNodeFlags_SpanFullWidth);
ImGui::TableNextColumn();
ImGui::TextDisabled("--");
ImGui::TableNextColumn();
ImGui::TextUnformatted(node->Type);
if (open)
{
for (int child_n = 0; child_n < node->ChildCount; child_n++)
DisplayNode(&all_nodes[node->ChildIdx + child_n], all_nodes);
ImGui::TreePop();
}
}
else
{
ImGui::TreeNodeEx(node->Name, ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_Bullet | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_SpanFullWidth);
ImGui::TableNextColumn();
ImGui::Text("%d", node->Size);
ImGui::TableNextColumn();
ImGui::TextUnformatted(node->Type);
}
}
};
static const MyTreeNode nodes[] =
{
{ "Root", "Folder", -1, 1, 3 }, // 0
{ "Music", "Folder", -1, 4, 2 }, // 1
{ "Textures", "Folder", -1, 6, 3 }, // 2
{ "desktop.ini", "System file", 1024, -1,-1 }, // 3
{ "File1_a.wav", "Audio file", 123000, -1,-1 }, // 4
{ "File1_b.wav", "Audio file", 456000, -1,-1 }, // 5
{ "Image001.png", "Image file", 203128, -1,-1 }, // 6
{ "Copy of Image001.png", "Image file", 203256, -1,-1 }, // 7
{ "Copy of Image001 (Final2).png","Image file", 203512, -1,-1 }, // 8
};
MyTreeNode::DisplayNode(&nodes[0], nodes);
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Item width");
if (ImGui::TreeNode("Item width"))
{
HelpMarker(
"Showcase using PushItemWidth() and how it is preserved on a per-column basis.\n\n"
"Note that on auto-resizing non-resizable fixed columns, querying the content width for e.g. right-alignment doesn't make sense.");
if (ImGui::BeginTable("table_item_width", 3, ImGuiTableFlags_Borders))
{
ImGui::TableSetupColumn("small");
ImGui::TableSetupColumn("half");
ImGui::TableSetupColumn("right-align");
ImGui::TableHeadersRow();
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
if (row == 0)
{
// Setup ItemWidth once (instead of setting up every time, which is also possible but less efficient)
ImGui::TableSetColumnIndex(0);
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 3.0f); // Small
ImGui::TableSetColumnIndex(1);
ImGui::PushItemWidth(-ImGui::GetContentRegionAvail().x * 0.5f);
ImGui::TableSetColumnIndex(2);
ImGui::PushItemWidth(-FLT_MIN); // Right-aligned
}
// Draw our contents
static float dummy_f = 0.0f;
ImGui::PushID(row);
ImGui::TableSetColumnIndex(0);
ImGui::SliderFloat("float0", &dummy_f, 0.0f, 1.0f);
ImGui::TableSetColumnIndex(1);
ImGui::SliderFloat("float1", &dummy_f, 0.0f, 1.0f);
ImGui::TableSetColumnIndex(2);
ImGui::SliderFloat("##float2", &dummy_f, 0.0f, 1.0f); // No visible label since right-aligned
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TreePop();
}
// Demonstrate using TableHeader() calls instead of TableHeadersRow()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Custom headers");
if (ImGui::TreeNode("Custom headers"))
{
const int COLUMNS_COUNT = 3;
if (ImGui::BeginTable("table_custom_headers", COLUMNS_COUNT, ImGuiTableFlags_Borders | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
{
ImGui::TableSetupColumn("Apricot");
ImGui::TableSetupColumn("Banana");
ImGui::TableSetupColumn("Cherry");
// Dummy entire-column selection storage
// FIXME: It would be nice to actually demonstrate full-featured selection using those checkbox.
static bool column_selected[3] = {};
// Instead of calling TableHeadersRow() we'll submit custom headers ourselves
ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
for (int column = 0; column < COLUMNS_COUNT; column++)
{
ImGui::TableSetColumnIndex(column);
const char* column_name = ImGui::TableGetColumnName(column); // Retrieve name passed to TableSetupColumn()
ImGui::PushID(column);
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
ImGui::Checkbox("##checkall", &column_selected[column]);
ImGui::PopStyleVar();
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::TableHeader(column_name);
ImGui::PopID();
}
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
char buf[32];
sprintf(buf, "Cell %d,%d", column, row);
ImGui::TableSetColumnIndex(column);
ImGui::Selectable(buf, column_selected[column]);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
// Demonstrate creating custom context menus inside columns, while playing it nice with context menus provided by TableHeadersRow()/TableHeader()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Context menus");
if (ImGui::TreeNode("Context menus"))
{
HelpMarker("By default, right-clicking over a TableHeadersRow()/TableHeader() line will open the default context-menu.\nUsing ImGuiTableFlags_ContextMenuInBody we also allow right-clicking over columns body.");
static ImGuiTableFlags flags1 = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_ContextMenuInBody", &flags1, ImGuiTableFlags_ContextMenuInBody);
PopStyleCompact();
// Context Menus: first example
// [1.1] Right-click on the TableHeadersRow() line to open the default table context menu.
// [1.2] Right-click in columns also open the default table context menu (if ImGuiTableFlags_ContextMenuInBody is set)
const int COLUMNS_COUNT = 3;
if (ImGui::BeginTable("table_context_menu", COLUMNS_COUNT, flags1))
{
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
// [1.1]] Right-click on the TableHeadersRow() line to open the default table context menu.
ImGui::TableHeadersRow();
// Submit dummy contents
for (int row = 0; row < 4; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < COLUMNS_COUNT; column++)
{
ImGui::TableSetColumnIndex(column);
ImGui::Text("Cell %d,%d", column, row);
}
}
ImGui::EndTable();
}
// Context Menus: second example
// [2.1] Right-click on the TableHeadersRow() line to open the default table context menu.
// [2.2] Right-click on the ".." to open a custom popup
// [2.3] Right-click in columns to open another custom popup
HelpMarker("Demonstrate mixing table context menu (over header), item context button (over button) and custom per-colum context menu (over column body).");
ImGuiTableFlags flags2 = ImGuiTableFlags_Resizable | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders;
if (ImGui::BeginTable("table_context_menu_2", COLUMNS_COUNT, flags2))
{
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
// [2.1] Right-click on the TableHeadersRow() line to open the default table context menu.
ImGui::TableHeadersRow();
for (int row = 0; row < 4; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < COLUMNS_COUNT; column++)
{
// Submit dummy contents
ImGui::TableSetColumnIndex(column);
ImGui::Text("Cell %d,%d", column, row);
ImGui::SameLine();
// [2.2] Right-click on the ".." to open a custom popup
ImGui::PushID(row * COLUMNS_COUNT + column);
ImGui::SmallButton("..");
if (ImGui::BeginPopupContextItem())
{
ImGui::Text("This is the popup for Button(\"..\") in Cell %d,%d", column, row);
if (ImGui::Button("Close"))
ImGui::CloseCurrentPopup();
ImGui::EndPopup();
}
ImGui::PopID();
}
}
// [2.3] Right-click anywhere in columns to open another custom popup
// (instead of testing for !IsAnyItemHovered() we could also call OpenPopup() with ImGuiPopupFlags_NoOpenOverExistingPopup
// to manage popup priority as the popups triggers, here "are we hovering a column" are overlapping)
int hovered_column = -1;
for (int column = 0; column < COLUMNS_COUNT + 1; column++)
{
ImGui::PushID(column);
if (ImGui::TableGetColumnFlags(column) & ImGuiTableColumnFlags_IsHovered)
hovered_column = column;
if (hovered_column == column && !ImGui::IsAnyItemHovered() && ImGui::IsMouseReleased(1))
ImGui::OpenPopup("MyPopup");
if (ImGui::BeginPopup("MyPopup"))
{
if (column == COLUMNS_COUNT)
ImGui::Text("This is a custom popup for unused space after the last column.");
else
ImGui::Text("This is a custom popup for Column %d", column);
if (ImGui::Button("Close"))
ImGui::CloseCurrentPopup();
ImGui::EndPopup();
}
ImGui::PopID();
}
ImGui::EndTable();
ImGui::Text("Hovered column: %d", hovered_column);
}
ImGui::TreePop();
}
// Demonstrate creating multiple tables with the same ID
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Synced instances");
if (ImGui::TreeNode("Synced instances"))
{
HelpMarker("Multiple tables with the same identifier will share their settings, width, visibility, order etc.");
static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_NoSavedSettings;
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
ImGui::CheckboxFlags("ImGuiTableFlags_SizingFixedFit", &flags, ImGuiTableFlags_SizingFixedFit);
for (int n = 0; n < 3; n++)
{
char buf[32];
sprintf(buf, "Synced Table %d", n);
bool open = ImGui::CollapsingHeader(buf, ImGuiTreeNodeFlags_DefaultOpen);
if (open && ImGui::BeginTable("Table", 3, flags, ImVec2(0.0f, ImGui::GetTextLineHeightWithSpacing() * 5)))
{
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableHeadersRow();
const int cell_count = (n == 1) ? 27 : 9; // Make second table have a scrollbar to verify that additional decoration is not affecting column positions.
for (int cell = 0; cell < cell_count; cell++)
{
ImGui::TableNextColumn();
ImGui::Text("this cell %d", cell);
}
ImGui::EndTable();
}
}
ImGui::TreePop();
}
// Demonstrate using Sorting facilities
// This is a simplified version of the "Advanced" example, where we mostly focus on the code necessary to handle sorting.
// Note that the "Advanced" example also showcase manually triggering a sort (e.g. if item quantities have been modified)
static const char* template_items_names[] =
{
"Banana", "Apple", "Cherry", "Watermelon", "Grapefruit", "Strawberry", "Mango",
"Kiwi", "Orange", "Pineapple", "Blueberry", "Plum", "Coconut", "Pear", "Apricot"
};
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Sorting");
if (ImGui::TreeNode("Sorting"))
{
// Create item list
static ImVector<MyItem> items;
if (items.Size == 0)
{
items.resize(50, MyItem());
for (int n = 0; n < items.Size; n++)
{
const int template_n = n % IM_ARRAYSIZE(template_items_names);
MyItem& item = items[n];
item.ID = n;
item.Name = template_items_names[template_n];
item.Quantity = (n * n - n) % 20; // Assign default quantities
}
}
// Options
static ImGuiTableFlags flags =
ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Sortable | ImGuiTableFlags_SortMulti
| ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_NoBordersInBody
| ImGuiTableFlags_ScrollY;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_SortMulti", &flags, ImGuiTableFlags_SortMulti);
ImGui::SameLine(); HelpMarker("When sorting is enabled: hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).");
ImGui::CheckboxFlags("ImGuiTableFlags_SortTristate", &flags, ImGuiTableFlags_SortTristate);
ImGui::SameLine(); HelpMarker("When sorting is enabled: allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).");
PopStyleCompact();
if (ImGui::BeginTable("table_sorting", 4, flags, ImVec2(0.0f, TEXT_BASE_HEIGHT * 15), 0.0f))
{
// Declare columns
// We use the "user_id" parameter of TableSetupColumn() to specify a user id that will be stored in the sort specifications.
// This is so our sort function can identify a column given our own identifier. We could also identify them based on their index!
// Demonstrate using a mixture of flags among available sort-related flags:
// - ImGuiTableColumnFlags_DefaultSort
// - ImGuiTableColumnFlags_NoSort / ImGuiTableColumnFlags_NoSortAscending / ImGuiTableColumnFlags_NoSortDescending
// - ImGuiTableColumnFlags_PreferSortAscending / ImGuiTableColumnFlags_PreferSortDescending
ImGui::TableSetupColumn("ID", ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_ID);
ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Name);
ImGui::TableSetupColumn("Action", ImGuiTableColumnFlags_NoSort | ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Action);
ImGui::TableSetupColumn("Quantity", ImGuiTableColumnFlags_PreferSortDescending | ImGuiTableColumnFlags_WidthStretch, 0.0f, MyItemColumnID_Quantity);
ImGui::TableSetupScrollFreeze(0, 1); // Make row always visible
ImGui::TableHeadersRow();
// Sort our data if sort specs have been changed!
if (ImGuiTableSortSpecs* sorts_specs = ImGui::TableGetSortSpecs())
if (sorts_specs->SpecsDirty)
{
MyItem::s_current_sort_specs = sorts_specs; // Store in variable accessible by the sort function.
if (items.Size > 1)
qsort(&items[0], (size_t)items.Size, sizeof(items[0]), MyItem::CompareWithSortSpecs);
MyItem::s_current_sort_specs = NULL;
sorts_specs->SpecsDirty = false;
}
// Demonstrate using clipper for large vertical lists
ImGuiListClipper clipper;
clipper.Begin(items.Size);
while (clipper.Step())
for (int row_n = clipper.DisplayStart; row_n < clipper.DisplayEnd; row_n++)
{
// Display a data item
MyItem* item = &items[row_n];
ImGui::PushID(item->ID);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("%04d", item->ID);
ImGui::TableNextColumn();
ImGui::TextUnformatted(item->Name);
ImGui::TableNextColumn();
ImGui::SmallButton("None");
ImGui::TableNextColumn();
ImGui::Text("%d", item->Quantity);
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TreePop();
}
// In this example we'll expose most table flags and settings.
// For specific flags and settings refer to the corresponding section for more detailed explanation.
// This section is mostly useful to experiment with combining certain flags or settings with each others.
//ImGui::SetNextItemOpen(true, ImGuiCond_Once); // [DEBUG]
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
IMGUI_DEMO_MARKER("Tables/Advanced");
if (ImGui::TreeNode("Advanced"))
{
static ImGuiTableFlags flags =
ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable
| ImGuiTableFlags_Sortable | ImGuiTableFlags_SortMulti
| ImGuiTableFlags_RowBg | ImGuiTableFlags_Borders | ImGuiTableFlags_NoBordersInBody
| ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY
| ImGuiTableFlags_SizingFixedFit;
enum ContentsType { CT_Text, CT_Button, CT_SmallButton, CT_FillButton, CT_Selectable, CT_SelectableSpanRow };
static int contents_type = CT_SelectableSpanRow;
const char* contents_type_names[] = { "Text", "Button", "SmallButton", "FillButton", "Selectable", "Selectable (span row)" };
static int freeze_cols = 1;
static int freeze_rows = 1;
static int items_count = IM_ARRAYSIZE(template_items_names) * 2;
static ImVec2 outer_size_value = ImVec2(0.0f, TEXT_BASE_HEIGHT * 12);
static float row_min_height = 0.0f; // Auto
static float inner_width_with_scroll = 0.0f; // Auto-extend
static bool outer_size_enabled = true;
static bool show_headers = true;
static bool show_wrapped_text = false;
//static ImGuiTextFilter filter;
//ImGui::SetNextItemOpen(true, ImGuiCond_Once); // FIXME-TABLE: Enabling this results in initial clipped first pass on table which tend to affect column sizing
if (ImGui::TreeNode("Options"))
{
// Make the UI compact because there are so many fields
PushStyleCompact();
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 28.0f);
if (ImGui::TreeNodeEx("Features:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_Reorderable", &flags, ImGuiTableFlags_Reorderable);
ImGui::CheckboxFlags("ImGuiTableFlags_Hideable", &flags, ImGuiTableFlags_Hideable);
ImGui::CheckboxFlags("ImGuiTableFlags_Sortable", &flags, ImGuiTableFlags_Sortable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoSavedSettings", &flags, ImGuiTableFlags_NoSavedSettings);
ImGui::CheckboxFlags("ImGuiTableFlags_ContextMenuInBody", &flags, ImGuiTableFlags_ContextMenuInBody);
ImGui::TreePop();
}
if (ImGui::TreeNodeEx("Decorations:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags, ImGuiTableFlags_RowBg);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", &flags, ImGuiTableFlags_BordersH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", &flags, ImGuiTableFlags_BordersOuterH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", &flags, ImGuiTableFlags_BordersInnerH);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", &flags, ImGuiTableFlags_NoBordersInBody); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body (borders will always appear in Headers");
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags, ImGuiTableFlags_NoBordersInBodyUntilResize); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body until hovered for resize (borders will always appear in Headers)");
ImGui::TreePop();
}
if (ImGui::TreeNodeEx("Sizing:", ImGuiTreeNodeFlags_DefaultOpen))
{
EditTableSizingFlags(&flags);
ImGui::SameLine(); HelpMarker("In the Advanced demo we override the policy of each column so those table-wide settings have less effect that typical.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags, ImGuiTableFlags_NoHostExtendX);
ImGui::SameLine(); HelpMarker("Make outer width auto-fit to columns, overriding outer_size.x value.\n\nOnly available when ScrollX/ScrollY are disabled and Stretch columns are not used.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendY", &flags, ImGuiTableFlags_NoHostExtendY);
ImGui::SameLine(); HelpMarker("Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit).\n\nOnly available when ScrollX/ScrollY are disabled. Data below the limit will be clipped and not visible.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::SameLine(); HelpMarker("Only available if ScrollX is disabled.");
ImGui::CheckboxFlags("ImGuiTableFlags_PreciseWidths", &flags, ImGuiTableFlags_PreciseWidths);
ImGui::SameLine(); HelpMarker("Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
ImGui::SameLine(); HelpMarker("Disable clipping rectangle for every individual columns (reduce draw command count, items will be able to overflow into other columns). Generally incompatible with ScrollFreeze options.");
ImGui::TreePop();
}
if (ImGui::TreeNodeEx("Padding:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_PadOuterX", &flags, ImGuiTableFlags_PadOuterX);
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadOuterX", &flags, ImGuiTableFlags_NoPadOuterX);
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadInnerX", &flags, ImGuiTableFlags_NoPadInnerX);
ImGui::TreePop();
}
if (ImGui::TreeNodeEx("Scrolling:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_cols", &freeze_cols, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_rows", &freeze_rows, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
ImGui::TreePop();
}
if (ImGui::TreeNodeEx("Sorting:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_SortMulti", &flags, ImGuiTableFlags_SortMulti);
ImGui::SameLine(); HelpMarker("When sorting is enabled: hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).");
ImGui::CheckboxFlags("ImGuiTableFlags_SortTristate", &flags, ImGuiTableFlags_SortTristate);
ImGui::SameLine(); HelpMarker("When sorting is enabled: allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).");
ImGui::TreePop();
}
if (ImGui::TreeNodeEx("Other:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::Checkbox("show_headers", &show_headers);
ImGui::Checkbox("show_wrapped_text", &show_wrapped_text);
ImGui::DragFloat2("##OuterSize", &outer_size_value.x);
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Checkbox("outer_size", &outer_size_enabled);
ImGui::SameLine();
HelpMarker("If scrolling is disabled (ScrollX and ScrollY not set):\n"
"- The table is output directly in the parent window.\n"
"- OuterSize.x < 0.0f will right-align the table.\n"
"- OuterSize.x = 0.0f will narrow fit the table unless there are any Stretch columns.\n"
"- OuterSize.y then becomes the minimum size for the table, which will extend vertically if there are more rows (unless NoHostExtendY is set).");
// From a user point of view we will tend to use 'inner_width' differently depending on whether our table is embedding scrolling.
// To facilitate toying with this demo we will actually pass 0.0f to the BeginTable() when ScrollX is disabled.
ImGui::DragFloat("inner_width (when ScrollX active)", &inner_width_with_scroll, 1.0f, 0.0f, FLT_MAX);
ImGui::DragFloat("row_min_height", &row_min_height, 1.0f, 0.0f, FLT_MAX);
ImGui::SameLine(); HelpMarker("Specify height of the Selectable item.");
ImGui::DragInt("items_count", &items_count, 0.1f, 0, 9999);
ImGui::Combo("items_type (first column)", &contents_type, contents_type_names, IM_ARRAYSIZE(contents_type_names));
//filter.Draw("filter");
ImGui::TreePop();
}
ImGui::PopItemWidth();
PopStyleCompact();
ImGui::Spacing();
ImGui::TreePop();
}
// Update item list if we changed the number of items
static ImVector<MyItem> items;
static ImVector<int> selection;
static bool items_need_sort = false;
if (items.Size != items_count)
{
items.resize(items_count, MyItem());
for (int n = 0; n < items_count; n++)
{
const int template_n = n % IM_ARRAYSIZE(template_items_names);
MyItem& item = items[n];
item.ID = n;
item.Name = template_items_names[template_n];
item.Quantity = (template_n == 3) ? 10 : (template_n == 4) ? 20 : 0; // Assign default quantities
}
}
const ImDrawList* parent_draw_list = ImGui::GetWindowDrawList();
const int parent_draw_list_draw_cmd_count = parent_draw_list->CmdBuffer.Size;
ImVec2 table_scroll_cur, table_scroll_max; // For debug display
const ImDrawList* table_draw_list = NULL; // "
// Submit table
const float inner_width_to_use = (flags & ImGuiTableFlags_ScrollX) ? inner_width_with_scroll : 0.0f;
if (ImGui::BeginTable("table_advanced", 6, flags, outer_size_enabled ? outer_size_value : ImVec2(0, 0), inner_width_to_use))
{
// Declare columns
// We use the "user_id" parameter of TableSetupColumn() to specify a user id that will be stored in the sort specifications.
// This is so our sort function can identify a column given our own identifier. We could also identify them based on their index!
ImGui::TableSetupColumn("ID", ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_NoHide, 0.0f, MyItemColumnID_ID);
ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Name);
ImGui::TableSetupColumn("Action", ImGuiTableColumnFlags_NoSort | ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Action);
ImGui::TableSetupColumn("Quantity", ImGuiTableColumnFlags_PreferSortDescending, 0.0f, MyItemColumnID_Quantity);
ImGui::TableSetupColumn("Description", (flags & ImGuiTableFlags_NoHostExtendX) ? 0 : ImGuiTableColumnFlags_WidthStretch, 0.0f, MyItemColumnID_Description);
ImGui::TableSetupColumn("Hidden", ImGuiTableColumnFlags_DefaultHide | ImGuiTableColumnFlags_NoSort);
ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
// Sort our data if sort specs have been changed!
ImGuiTableSortSpecs* sorts_specs = ImGui::TableGetSortSpecs();
if (sorts_specs && sorts_specs->SpecsDirty)
items_need_sort = true;
if (sorts_specs && items_need_sort && items.Size > 1)
{
MyItem::s_current_sort_specs = sorts_specs; // Store in variable accessible by the sort function.
qsort(&items[0], (size_t)items.Size, sizeof(items[0]), MyItem::CompareWithSortSpecs);
MyItem::s_current_sort_specs = NULL;
sorts_specs->SpecsDirty = false;
}
items_need_sort = false;
// Take note of whether we are currently sorting based on the Quantity field,
// we will use this to trigger sorting when we know the data of this column has been modified.
const bool sorts_specs_using_quantity = (ImGui::TableGetColumnFlags(3) & ImGuiTableColumnFlags_IsSorted) != 0;
// Show headers
if (show_headers)
ImGui::TableHeadersRow();
// Show data
// FIXME-TABLE FIXME-NAV: How we can get decent up/down even though we have the buttons here?
ImGui::PushButtonRepeat(true);
#if 1
// Demonstrate using clipper for large vertical lists
ImGuiListClipper clipper;
clipper.Begin(items.Size);
while (clipper.Step())
{
for (int row_n = clipper.DisplayStart; row_n < clipper.DisplayEnd; row_n++)
#else
// Without clipper
{
for (int row_n = 0; row_n < items.Size; row_n++)
#endif
{
MyItem* item = &items[row_n];
//if (!filter.PassFilter(item->Name))
// continue;
const bool item_is_selected = selection.contains(item->ID);
ImGui::PushID(item->ID);
ImGui::TableNextRow(ImGuiTableRowFlags_None, row_min_height);
// For the demo purpose we can select among different type of items submitted in the first column
ImGui::TableSetColumnIndex(0);
char label[32];
sprintf(label, "%04d", item->ID);
if (contents_type == CT_Text)
ImGui::TextUnformatted(label);
else if (contents_type == CT_Button)
ImGui::Button(label);
else if (contents_type == CT_SmallButton)
ImGui::SmallButton(label);
else if (contents_type == CT_FillButton)
ImGui::Button(label, ImVec2(-FLT_MIN, 0.0f));
else if (contents_type == CT_Selectable || contents_type == CT_SelectableSpanRow)
{
ImGuiSelectableFlags selectable_flags = (contents_type == CT_SelectableSpanRow) ? ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowItemOverlap : ImGuiSelectableFlags_None;
if (ImGui::Selectable(label, item_is_selected, selectable_flags, ImVec2(0, row_min_height)))
{
if (ImGui::GetIO().KeyCtrl)
{
if (item_is_selected)
selection.find_erase_unsorted(item->ID);
else
selection.push_back(item->ID);
}
else
{
selection.clear();
selection.push_back(item->ID);
}
}
}
if (ImGui::TableSetColumnIndex(1))
ImGui::TextUnformatted(item->Name);
// Here we demonstrate marking our data set as needing to be sorted again if we modified a quantity,
// and we are currently sorting on the column showing the Quantity.
// To avoid triggering a sort while holding the button, we only trigger it when the button has been released.
// You will probably need a more advanced system in your code if you want to automatically sort when a specific entry changes.
if (ImGui::TableSetColumnIndex(2))
{
if (ImGui::SmallButton("Chop")) { item->Quantity += 1; }
if (sorts_specs_using_quantity && ImGui::IsItemDeactivated()) { items_need_sort = true; }
ImGui::SameLine();
if (ImGui::SmallButton("Eat")) { item->Quantity -= 1; }
if (sorts_specs_using_quantity && ImGui::IsItemDeactivated()) { items_need_sort = true; }
}
if (ImGui::TableSetColumnIndex(3))
ImGui::Text("%d", item->Quantity);
ImGui::TableSetColumnIndex(4);
if (show_wrapped_text)
ImGui::TextWrapped("Lorem ipsum dolor sit amet");
else
ImGui::Text("Lorem ipsum dolor sit amet");
if (ImGui::TableSetColumnIndex(5))
ImGui::Text("1234");
ImGui::PopID();
}
}
ImGui::PopButtonRepeat();
// Store some info to display debug details below
table_scroll_cur = ImVec2(ImGui::GetScrollX(), ImGui::GetScrollY());
table_scroll_max = ImVec2(ImGui::GetScrollMaxX(), ImGui::GetScrollMaxY());
table_draw_list = ImGui::GetWindowDrawList();
ImGui::EndTable();
}
static bool show_debug_details = false;
ImGui::Checkbox("Debug details", &show_debug_details);
if (show_debug_details && table_draw_list)
{
ImGui::SameLine(0.0f, 0.0f);
const int table_draw_list_draw_cmd_count = table_draw_list->CmdBuffer.Size;
if (table_draw_list == parent_draw_list)
ImGui::Text(": DrawCmd: +%d (in same window)",
table_draw_list_draw_cmd_count - parent_draw_list_draw_cmd_count);
else
ImGui::Text(": DrawCmd: +%d (in child window), Scroll: (%.f/%.f) (%.f/%.f)",
table_draw_list_draw_cmd_count - 1, table_scroll_cur.x, table_scroll_max.x, table_scroll_cur.y, table_scroll_max.y);
}
ImGui::TreePop();
}
ImGui::PopID();
ShowDemoWindowColumns();
if (disable_indent)
ImGui::PopStyleVar();
}
// Demonstrate old/legacy Columns API!
// [2020: Columns are under-featured and not maintained. Prefer using the more flexible and powerful BeginTable() API!]
static void ShowDemoWindowColumns()
{
IMGUI_DEMO_MARKER("Columns (legacy API)");
bool open = ImGui::TreeNode("Legacy Columns API");
ImGui::SameLine();
HelpMarker("Columns() is an old API! Prefer using the more flexible and powerful BeginTable() API!");
if (!open)
return;
// Basic columns
IMGUI_DEMO_MARKER("Columns (legacy API)/Basic");
if (ImGui::TreeNode("Basic"))
{
ImGui::Text("Without border:");
ImGui::Columns(3, "mycolumns3", false); // 3-ways, no border
ImGui::Separator();
for (int n = 0; n < 14; n++)
{
char label[32];
sprintf(label, "Item %d", n);
if (ImGui::Selectable(label)) {}
//if (ImGui::Button(label, ImVec2(-FLT_MIN,0.0f))) {}
ImGui::NextColumn();
}
ImGui::Columns(1);
ImGui::Separator();
ImGui::Text("With border:");
ImGui::Columns(4, "mycolumns"); // 4-ways, with border
ImGui::Separator();
ImGui::Text("ID"); ImGui::NextColumn();
ImGui::Text("Name"); ImGui::NextColumn();
ImGui::Text("Path"); ImGui::NextColumn();
ImGui::Text("Hovered"); ImGui::NextColumn();
ImGui::Separator();
const char* names[3] = { "One", "Two", "Three" };
const char* paths[3] = { "/path/one", "/path/two", "/path/three" };
static int selected = -1;
for (int i = 0; i < 3; i++)
{
char label[32];
sprintf(label, "%04d", i);
if (ImGui::Selectable(label, selected == i, ImGuiSelectableFlags_SpanAllColumns))
selected = i;
bool hovered = ImGui::IsItemHovered();
ImGui::NextColumn();
ImGui::Text(names[i]); ImGui::NextColumn();
ImGui::Text(paths[i]); ImGui::NextColumn();
ImGui::Text("%d", hovered); ImGui::NextColumn();
}
ImGui::Columns(1);
ImGui::Separator();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Columns (legacy API)/Borders");
if (ImGui::TreeNode("Borders"))
{
// NB: Future columns API should allow automatic horizontal borders.
static bool h_borders = true;
static bool v_borders = true;
static int columns_count = 4;
const int lines_count = 3;
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
ImGui::DragInt("##columns_count", &columns_count, 0.1f, 2, 10, "%d columns");
if (columns_count < 2)
columns_count = 2;
ImGui::SameLine();
ImGui::Checkbox("horizontal", &h_borders);
ImGui::SameLine();
ImGui::Checkbox("vertical", &v_borders);
ImGui::Columns(columns_count, NULL, v_borders);
for (int i = 0; i < columns_count * lines_count; i++)
{
if (h_borders && ImGui::GetColumnIndex() == 0)
ImGui::Separator();
ImGui::Text("%c%c%c", 'a' + i, 'a' + i, 'a' + i);
ImGui::Text("Width %.2f", ImGui::GetColumnWidth());
ImGui::Text("Avail %.2f", ImGui::GetContentRegionAvail().x);
ImGui::Text("Offset %.2f", ImGui::GetColumnOffset());
ImGui::Text("Long text that is likely to clip");
ImGui::Button("Button", ImVec2(-FLT_MIN, 0.0f));
ImGui::NextColumn();
}
ImGui::Columns(1);
if (h_borders)
ImGui::Separator();
ImGui::TreePop();
}
// Create multiple items in a same cell before switching to next column
IMGUI_DEMO_MARKER("Columns (legacy API)/Mixed items");
if (ImGui::TreeNode("Mixed items"))
{
ImGui::Columns(3, "mixed");
ImGui::Separator();
ImGui::Text("Hello");
ImGui::Button("Banana");
ImGui::NextColumn();
ImGui::Text("ImGui");
ImGui::Button("Apple");
static float foo = 1.0f;
ImGui::InputFloat("red", &foo, 0.05f, 0, "%.3f");
ImGui::Text("An extra line here.");
ImGui::NextColumn();
ImGui::Text("Sailor");
ImGui::Button("Corniflower");
static float bar = 1.0f;
ImGui::InputFloat("blue", &bar, 0.05f, 0, "%.3f");
ImGui::NextColumn();
if (ImGui::CollapsingHeader("Category A")) { ImGui::Text("Blah blah blah"); } ImGui::NextColumn();
if (ImGui::CollapsingHeader("Category B")) { ImGui::Text("Blah blah blah"); } ImGui::NextColumn();
if (ImGui::CollapsingHeader("Category C")) { ImGui::Text("Blah blah blah"); } ImGui::NextColumn();
ImGui::Columns(1);
ImGui::Separator();
ImGui::TreePop();
}
// Word wrapping
IMGUI_DEMO_MARKER("Columns (legacy API)/Word-wrapping");
if (ImGui::TreeNode("Word-wrapping"))
{
ImGui::Columns(2, "word-wrapping");
ImGui::Separator();
ImGui::TextWrapped("The quick brown fox jumps over the lazy dog.");
ImGui::TextWrapped("Hello Left");
ImGui::NextColumn();
ImGui::TextWrapped("The quick brown fox jumps over the lazy dog.");
ImGui::TextWrapped("Hello Right");
ImGui::Columns(1);
ImGui::Separator();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Columns (legacy API)/Horizontal Scrolling");
if (ImGui::TreeNode("Horizontal Scrolling"))
{
ImGui::SetNextWindowContentSize(ImVec2(1500.0f, 0.0f));
ImVec2 child_size = ImVec2(0, ImGui::GetFontSize() * 20.0f);
ImGui::BeginChild("##ScrollingRegion", child_size, false, ImGuiWindowFlags_HorizontalScrollbar);
ImGui::Columns(10);
// Also demonstrate using clipper for large vertical lists
int ITEMS_COUNT = 2000;
ImGuiListClipper clipper;
clipper.Begin(ITEMS_COUNT);
while (clipper.Step())
{
for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
for (int j = 0; j < 10; j++)
{
ImGui::Text("Line %d Column %d...", i, j);
ImGui::NextColumn();
}
}
ImGui::Columns(1);
ImGui::EndChild();
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Columns (legacy API)/Tree");
if (ImGui::TreeNode("Tree"))
{
ImGui::Columns(2, "tree", true);
for (int x = 0; x < 3; x++)
{
bool open1 = ImGui::TreeNode((void*)(intptr_t)x, "Node%d", x);
ImGui::NextColumn();
ImGui::Text("Node contents");
ImGui::NextColumn();
if (open1)
{
for (int y = 0; y < 3; y++)
{
bool open2 = ImGui::TreeNode((void*)(intptr_t)y, "Node%d.%d", x, y);
ImGui::NextColumn();
ImGui::Text("Node contents");
if (open2)
{
ImGui::Text("Even more contents");
if (ImGui::TreeNode("Tree in column"))
{
ImGui::Text("The quick brown fox jumps over the lazy dog");
ImGui::TreePop();
}
}
ImGui::NextColumn();
if (open2)
ImGui::TreePop();
}
ImGui::TreePop();
}
}
ImGui::Columns(1);
ImGui::TreePop();
}
ImGui::TreePop();
}
namespace ImGui { extern ImGuiKeyData* GetKeyData(ImGuiKey key); }
static void ShowDemoWindowInputs()
{
IMGUI_DEMO_MARKER("Inputs & Focus");
if (ImGui::CollapsingHeader("Inputs & Focus"))
{
ImGuiIO& io = ImGui::GetIO();
// Display inputs submitted to ImGuiIO
IMGUI_DEMO_MARKER("Inputs & Focus/Inputs");
ImGui::SetNextItemOpen(true, ImGuiCond_Once);
if (ImGui::TreeNode("Inputs"))
{
HelpMarker(
"This is a simplified view. See more detailed input state:\n"
"- in 'Tools->Metrics/Debugger->Inputs'.\n"
"- in 'Tools->Debug Log->IO'.");
if (ImGui::IsMousePosValid())
ImGui::Text("Mouse pos: (%g, %g)", io.MousePos.x, io.MousePos.y);
else
ImGui::Text("Mouse pos: <INVALID>");
ImGui::Text("Mouse delta: (%g, %g)", io.MouseDelta.x, io.MouseDelta.y);
ImGui::Text("Mouse down:");
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++) if (ImGui::IsMouseDown(i)) { ImGui::SameLine(); ImGui::Text("b%d (%.02f secs)", i, io.MouseDownDuration[i]); }
ImGui::Text("Mouse wheel: %.1f", io.MouseWheel);
// We iterate both legacy native range and named ImGuiKey ranges, which is a little odd but this allows displaying the data for old/new backends.
// User code should never have to go through such hoops! You can generally iterate between ImGuiKey_NamedKey_BEGIN and ImGuiKey_NamedKey_END.
#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
ImGuiKey start_key = ImGuiKey_NamedKey_BEGIN;
#else
struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key < 512 && ImGui::GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
ImGuiKey start_key = (ImGuiKey)0;
#endif
ImGui::Text("Keys down:"); for (ImGuiKey key = start_key; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !ImGui::IsKeyDown(key)) continue; ImGui::SameLine(); ImGui::Text((key < ImGuiKey_NamedKey_BEGIN) ? "\"%s\"" : "\"%s\" %d", ImGui::GetKeyName(key), key); ImGui::SameLine(); ImGui::Text("(%.02f)", ImGui::GetKeyData(key)->DownDuration); }
ImGui::Text("Keys mods: %s%s%s%s", io.KeyCtrl ? "CTRL " : "", io.KeyShift ? "SHIFT " : "", io.KeyAlt ? "ALT " : "", io.KeySuper ? "SUPER " : "");
ImGui::Text("Chars queue:"); for (int i = 0; i < io.InputQueueCharacters.Size; i++) { ImWchar c = io.InputQueueCharacters[i]; ImGui::SameLine(); ImGui::Text("\'%c\' (0x%04X)", (c > ' ' && c <= 255) ? (char)c : '?', c); } // FIXME: We should convert 'c' to UTF-8 here but the functions are not public.
ImGui::TreePop();
}
// Display ImGuiIO output flags
IMGUI_DEMO_MARKER("Inputs & Focus/Outputs");
ImGui::SetNextItemOpen(true, ImGuiCond_Once);
if (ImGui::TreeNode("Outputs"))
{
HelpMarker(
"The value of io.WantCaptureMouse and io.WantCaptureKeyboard are normally set by Dear ImGui "
"to instruct your application of how to route inputs. Typically, when a value is true, it means "
"Dear ImGui wants the corresponding inputs and we expect the underlying application to ignore them.\n\n"
"The most typical case is: when hovering a window, Dear ImGui set io.WantCaptureMouse to true, "
"and underlying application should ignore mouse inputs (in practice there are many and more subtle "
"rules leading to how those flags are set).");
ImGui::Text("io.WantCaptureMouse: %d", io.WantCaptureMouse);
ImGui::Text("io.WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
ImGui::Text("io.WantCaptureKeyboard: %d", io.WantCaptureKeyboard);
ImGui::Text("io.WantTextInput: %d", io.WantTextInput);
ImGui::Text("io.WantSetMousePos: %d", io.WantSetMousePos);
ImGui::Text("io.NavActive: %d, io.NavVisible: %d", io.NavActive, io.NavVisible);
IMGUI_DEMO_MARKER("Inputs & Focus/Outputs/WantCapture override");
if (ImGui::TreeNode("WantCapture override"))
{
HelpMarker(
"Hovering the colored canvas will override io.WantCaptureXXX fields.\n"
"Notice how normally (when set to none), the value of io.WantCaptureKeyboard would be false when hovering and true when clicking.");
static int capture_override_mouse = -1;
static int capture_override_keyboard = -1;
const char* capture_override_desc[] = { "None", "Set to false", "Set to true" };
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 15);
ImGui::SliderInt("SetNextFrameWantCaptureMouse() on hover", &capture_override_mouse, -1, +1, capture_override_desc[capture_override_mouse + 1], ImGuiSliderFlags_AlwaysClamp);
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 15);
ImGui::SliderInt("SetNextFrameWantCaptureKeyboard() on hover", &capture_override_keyboard, -1, +1, capture_override_desc[capture_override_keyboard + 1], ImGuiSliderFlags_AlwaysClamp);
ImGui::ColorButton("##panel", ImVec4(0.7f, 0.1f, 0.7f, 1.0f), ImGuiColorEditFlags_NoTooltip | ImGuiColorEditFlags_NoDragDrop, ImVec2(128.0f, 96.0f)); // Dummy item
if (ImGui::IsItemHovered() && capture_override_mouse != -1)
ImGui::SetNextFrameWantCaptureMouse(capture_override_mouse == 1);
if (ImGui::IsItemHovered() && capture_override_keyboard != -1)
ImGui::SetNextFrameWantCaptureKeyboard(capture_override_keyboard == 1);
ImGui::TreePop();
}
ImGui::TreePop();
}
// Display mouse cursors
IMGUI_DEMO_MARKER("Inputs & Focus/Mouse Cursors");
if (ImGui::TreeNode("Mouse Cursors"))
{
const char* mouse_cursors_names[] = { "Arrow", "TextInput", "ResizeAll", "ResizeNS", "ResizeEW", "ResizeNESW", "ResizeNWSE", "Hand", "NotAllowed" };
IM_ASSERT(IM_ARRAYSIZE(mouse_cursors_names) == ImGuiMouseCursor_COUNT);
ImGuiMouseCursor current = ImGui::GetMouseCursor();
ImGui::Text("Current mouse cursor = %d: %s", current, mouse_cursors_names[current]);
ImGui::BeginDisabled(true);
ImGui::CheckboxFlags("io.BackendFlags: HasMouseCursors", &io.BackendFlags, ImGuiBackendFlags_HasMouseCursors);
ImGui::EndDisabled();
ImGui::Text("Hover to see mouse cursors:");
ImGui::SameLine(); HelpMarker(
"Your application can render a different mouse cursor based on what ImGui::GetMouseCursor() returns. "
"If software cursor rendering (io.MouseDrawCursor) is set ImGui will draw the right cursor for you, "
"otherwise your backend needs to handle it.");
for (int i = 0; i < ImGuiMouseCursor_COUNT; i++)
{
char label[32];
sprintf(label, "Mouse cursor %d: %s", i, mouse_cursors_names[i]);
ImGui::Bullet(); ImGui::Selectable(label, false);
if (ImGui::IsItemHovered())
ImGui::SetMouseCursor(i);
}
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Inputs & Focus/Tabbing");
if (ImGui::TreeNode("Tabbing"))
{
ImGui::Text("Use TAB/SHIFT+TAB to cycle through keyboard editable fields.");
static char buf[32] = "hello";
ImGui::InputText("1", buf, IM_ARRAYSIZE(buf));
ImGui::InputText("2", buf, IM_ARRAYSIZE(buf));
ImGui::InputText("3", buf, IM_ARRAYSIZE(buf));
ImGui::PushTabStop(false);
ImGui::InputText("4 (tab skip)", buf, IM_ARRAYSIZE(buf));
ImGui::SameLine(); HelpMarker("Item won't be cycled through when using TAB or Shift+Tab.");
ImGui::PopTabStop();
ImGui::InputText("5", buf, IM_ARRAYSIZE(buf));
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Inputs & Focus/Focus from code");
if (ImGui::TreeNode("Focus from code"))
{
bool focus_1 = ImGui::Button("Focus on 1"); ImGui::SameLine();
bool focus_2 = ImGui::Button("Focus on 2"); ImGui::SameLine();
bool focus_3 = ImGui::Button("Focus on 3");
int has_focus = 0;
static char buf[128] = "click on a button to set focus";
if (focus_1) ImGui::SetKeyboardFocusHere();
ImGui::InputText("1", buf, IM_ARRAYSIZE(buf));
if (ImGui::IsItemActive()) has_focus = 1;
if (focus_2) ImGui::SetKeyboardFocusHere();
ImGui::InputText("2", buf, IM_ARRAYSIZE(buf));
if (ImGui::IsItemActive()) has_focus = 2;
ImGui::PushTabStop(false);
if (focus_3) ImGui::SetKeyboardFocusHere();
ImGui::InputText("3 (tab skip)", buf, IM_ARRAYSIZE(buf));
if (ImGui::IsItemActive()) has_focus = 3;
ImGui::SameLine(); HelpMarker("Item won't be cycled through when using TAB or Shift+Tab.");
ImGui::PopTabStop();
if (has_focus)
ImGui::Text("Item with focus: %d", has_focus);
else
ImGui::Text("Item with focus: <none>");
// Use >= 0 parameter to SetKeyboardFocusHere() to focus an upcoming item
static float f3[3] = { 0.0f, 0.0f, 0.0f };
int focus_ahead = -1;
if (ImGui::Button("Focus on X")) { focus_ahead = 0; } ImGui::SameLine();
if (ImGui::Button("Focus on Y")) { focus_ahead = 1; } ImGui::SameLine();
if (ImGui::Button("Focus on Z")) { focus_ahead = 2; }
if (focus_ahead != -1) ImGui::SetKeyboardFocusHere(focus_ahead);
ImGui::SliderFloat3("Float3", &f3[0], 0.0f, 1.0f);
ImGui::TextWrapped("NB: Cursor & selection are preserved when refocusing last used item in code.");
ImGui::TreePop();
}
IMGUI_DEMO_MARKER("Inputs & Focus/Dragging");
if (ImGui::TreeNode("Dragging"))
{
ImGui::TextWrapped("You can use ImGui::GetMouseDragDelta(0) to query for the dragged amount on any widget.");
for (int button = 0; button < 3; button++)
{
ImGui::Text("IsMouseDragging(%d):", button);
ImGui::Text(" w/ default threshold: %d,", ImGui::IsMouseDragging(button));
ImGui::Text(" w/ zero threshold: %d,", ImGui::IsMouseDragging(button, 0.0f));
ImGui::Text(" w/ large threshold: %d,", ImGui::IsMouseDragging(button, 20.0f));
}
ImGui::Button("Drag Me");
if (ImGui::IsItemActive())
ImGui::GetForegroundDrawList()->AddLine(io.MouseClickedPos[0], io.MousePos, ImGui::GetColorU32(ImGuiCol_Button), 4.0f); // Draw a line between the button and the mouse cursor
// Drag operations gets "unlocked" when the mouse has moved past a certain threshold
// (the default threshold is stored in io.MouseDragThreshold). You can request a lower or higher
// threshold using the second parameter of IsMouseDragging() and GetMouseDragDelta().
ImVec2 value_raw = ImGui::GetMouseDragDelta(0, 0.0f);
ImVec2 value_with_lock_threshold = ImGui::GetMouseDragDelta(0);
ImVec2 mouse_delta = io.MouseDelta;
ImGui::Text("GetMouseDragDelta(0):");
ImGui::Text(" w/ default threshold: (%.1f, %.1f)", value_with_lock_threshold.x, value_with_lock_threshold.y);
ImGui::Text(" w/ zero threshold: (%.1f, %.1f)", value_raw.x, value_raw.y);
ImGui::Text("io.MouseDelta: (%.1f, %.1f)", mouse_delta.x, mouse_delta.y);
ImGui::TreePop();
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] About Window / ShowAboutWindow()
// Access from Dear ImGui Demo -> Tools -> About
//-----------------------------------------------------------------------------
void ImGui::ShowAboutWindow(bool* p_open)
{
if (!ImGui::Begin("About Dear ImGui", p_open, ImGuiWindowFlags_AlwaysAutoResize))
{
ImGui::End();
return;
}
IMGUI_DEMO_MARKER("Tools/About Dear ImGui");
ImGui::Text("Dear ImGui %s", ImGui::GetVersion());
ImGui::Separator();
ImGui::Text("By Omar Cornut and all Dear ImGui contributors.");
ImGui::Text("Dear ImGui is licensed under the MIT License, see LICENSE for more information.");
static bool show_config_info = false;
ImGui::Checkbox("Config/Build Information", &show_config_info);
if (show_config_info)
{
ImGuiIO& io = ImGui::GetIO();
ImGuiStyle& style = ImGui::GetStyle();
bool copy_to_clipboard = ImGui::Button("Copy to clipboard");
ImVec2 child_size = ImVec2(0, ImGui::GetTextLineHeightWithSpacing() * 18);
ImGui::BeginChildFrame(ImGui::GetID("cfg_infos"), child_size, ImGuiWindowFlags_NoMove);
if (copy_to_clipboard)
{
ImGui::LogToClipboard();
ImGui::LogText("```\n"); // Back quotes will make text appears without formatting when pasting on GitHub
}
ImGui::Text("Dear ImGui %s (%d)", IMGUI_VERSION, IMGUI_VERSION_NUM);
ImGui::Separator();
ImGui::Text("sizeof(size_t): %d, sizeof(ImDrawIdx): %d, sizeof(ImDrawVert): %d", (int)sizeof(size_t), (int)sizeof(ImDrawIdx), (int)sizeof(ImDrawVert));
ImGui::Text("define: __cplusplus=%d", (int)__cplusplus);
#ifdef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_OBSOLETE_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
ImGui::Text("define: IMGUI_DISABLE_OBSOLETE_KEYIO");
#endif
#ifdef IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_WIN32_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_WIN32_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_FILE_FUNCTIONS
ImGui::Text("define: IMGUI_DISABLE_FILE_FUNCTIONS");
#endif
#ifdef IMGUI_DISABLE_DEFAULT_ALLOCATORS
ImGui::Text("define: IMGUI_DISABLE_DEFAULT_ALLOCATORS");
#endif
#ifdef IMGUI_USE_BGRA_PACKED_COLOR
ImGui::Text("define: IMGUI_USE_BGRA_PACKED_COLOR");
#endif
#ifdef _WIN32
ImGui::Text("define: _WIN32");
#endif
#ifdef _WIN64
ImGui::Text("define: _WIN64");
#endif
#ifdef __linux__
ImGui::Text("define: __linux__");
#endif
#ifdef __APPLE__
ImGui::Text("define: __APPLE__");
#endif
#ifdef _MSC_VER
ImGui::Text("define: _MSC_VER=%d", _MSC_VER);
#endif
#ifdef _MSVC_LANG
ImGui::Text("define: _MSVC_LANG=%d", (int)_MSVC_LANG);
#endif
#ifdef __MINGW32__
ImGui::Text("define: __MINGW32__");
#endif
#ifdef __MINGW64__
ImGui::Text("define: __MINGW64__");
#endif
#ifdef __GNUC__
ImGui::Text("define: __GNUC__=%d", (int)__GNUC__);
#endif
#ifdef __clang_version__
ImGui::Text("define: __clang_version__=%s", __clang_version__);
#endif
#ifdef __EMSCRIPTEN__
ImGui::Text("define: __EMSCRIPTEN__");
#endif
ImGui::Separator();
ImGui::Text("io.BackendPlatformName: %s", io.BackendPlatformName ? io.BackendPlatformName : "NULL");
ImGui::Text("io.BackendRendererName: %s", io.BackendRendererName ? io.BackendRendererName : "NULL");
ImGui::Text("io.ConfigFlags: 0x%08X", io.ConfigFlags);
if (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) ImGui::Text(" NavEnableKeyboard");
if (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) ImGui::Text(" NavEnableGamepad");
if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) ImGui::Text(" NavEnableSetMousePos");
if (io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard) ImGui::Text(" NavNoCaptureKeyboard");
if (io.ConfigFlags & ImGuiConfigFlags_NoMouse) ImGui::Text(" NoMouse");
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) ImGui::Text(" NoMouseCursorChange");
if (io.MouseDrawCursor) ImGui::Text("io.MouseDrawCursor");
if (io.ConfigMacOSXBehaviors) ImGui::Text("io.ConfigMacOSXBehaviors");
if (io.ConfigInputTextCursorBlink) ImGui::Text("io.ConfigInputTextCursorBlink");
if (io.ConfigWindowsResizeFromEdges) ImGui::Text("io.ConfigWindowsResizeFromEdges");
if (io.ConfigWindowsMoveFromTitleBarOnly) ImGui::Text("io.ConfigWindowsMoveFromTitleBarOnly");
if (io.ConfigMemoryCompactTimer >= 0.0f) ImGui::Text("io.ConfigMemoryCompactTimer = %.1f", io.ConfigMemoryCompactTimer);
ImGui::Text("io.BackendFlags: 0x%08X", io.BackendFlags);
if (io.BackendFlags & ImGuiBackendFlags_HasGamepad) ImGui::Text(" HasGamepad");
if (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) ImGui::Text(" HasMouseCursors");
if (io.BackendFlags & ImGuiBackendFlags_HasSetMousePos) ImGui::Text(" HasSetMousePos");
if (io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset) ImGui::Text(" RendererHasVtxOffset");
ImGui::Separator();
ImGui::Text("io.Fonts: %d fonts, Flags: 0x%08X, TexSize: %d,%d", io.Fonts->Fonts.Size, io.Fonts->Flags, io.Fonts->TexWidth, io.Fonts->TexHeight);
ImGui::Text("io.DisplaySize: %.2f,%.2f", io.DisplaySize.x, io.DisplaySize.y);
ImGui::Text("io.DisplayFramebufferScale: %.2f,%.2f", io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
ImGui::Separator();
ImGui::Text("style.WindowPadding: %.2f,%.2f", style.WindowPadding.x, style.WindowPadding.y);
ImGui::Text("style.WindowBorderSize: %.2f", style.WindowBorderSize);
ImGui::Text("style.FramePadding: %.2f,%.2f", style.FramePadding.x, style.FramePadding.y);
ImGui::Text("style.FrameRounding: %.2f", style.FrameRounding);
ImGui::Text("style.FrameBorderSize: %.2f", style.FrameBorderSize);
ImGui::Text("style.ItemSpacing: %.2f,%.2f", style.ItemSpacing.x, style.ItemSpacing.y);
ImGui::Text("style.ItemInnerSpacing: %.2f,%.2f", style.ItemInnerSpacing.x, style.ItemInnerSpacing.y);
if (copy_to_clipboard)
{
ImGui::LogText("\n```\n");
ImGui::LogFinish();
}
ImGui::EndChildFrame();
}
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Style Editor / ShowStyleEditor()
//-----------------------------------------------------------------------------
// - ShowFontSelector()
// - ShowStyleSelector()
// - ShowStyleEditor()
//-----------------------------------------------------------------------------
// Forward declare ShowFontAtlas() which isn't worth putting in public API yet
namespace ImGui { IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas); }
// Demo helper function to select among loaded fonts.
// Here we use the regular BeginCombo()/EndCombo() api which is the more flexible one.
void ImGui::ShowFontSelector(const char* label)
{
ImGuiIO& io = ImGui::GetIO();
ImFont* font_current = ImGui::GetFont();
if (ImGui::BeginCombo(label, font_current->GetDebugName()))
{
for (int n = 0; n < io.Fonts->Fonts.Size; n++)
{
ImFont* font = io.Fonts->Fonts[n];
ImGui::PushID((void*)font);
if (ImGui::Selectable(font->GetDebugName(), font == font_current))
io.FontDefault = font;
ImGui::PopID();
}
ImGui::EndCombo();
}
ImGui::SameLine();
HelpMarker(
"- Load additional fonts with io.Fonts->AddFontFromFileTTF().\n"
"- The font atlas is built when calling io.Fonts->GetTexDataAsXXXX() or io.Fonts->Build().\n"
"- Read FAQ and docs/FONTS.md for more details.\n"
"- If you need to add/remove fonts at runtime (e.g. for DPI change), do it before calling NewFrame().");
}
// Demo helper function to select among default colors. See ShowStyleEditor() for more advanced options.
// Here we use the simplified Combo() api that packs items into a single literal string.
// Useful for quick combo boxes where the choices are known locally.
bool ImGui::ShowStyleSelector(const char* label)
{
static int style_idx = -1;
if (ImGui::Combo(label, &style_idx, "Dark\0Light\0Classic\0"))
{
switch (style_idx)
{
case 0: ImGui::StyleColorsDark(); break;
case 1: ImGui::StyleColorsLight(); break;
case 2: ImGui::StyleColorsClassic(); break;
}
return true;
}
return false;
}
void ImGui::ShowStyleEditor(ImGuiStyle* ref)
{
IMGUI_DEMO_MARKER("Tools/Style Editor");
// You can pass in a reference ImGuiStyle structure to compare to, revert to and save to
// (without a reference style pointer, we will use one compared locally as a reference)
ImGuiStyle& style = ImGui::GetStyle();
static ImGuiStyle ref_saved_style;
// Default to using internal storage as reference
static bool init = true;
if (init && ref == NULL)
ref_saved_style = style;
init = false;
if (ref == NULL)
ref = &ref_saved_style;
ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.50f);
if (ImGui::ShowStyleSelector("Colors##Selector"))
ref_saved_style = style;
ImGui::ShowFontSelector("Fonts##Selector");
// Simplified Settings (expose floating-pointer border sizes as boolean representing 0.0f or 1.0f)
if (ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f"))
style.GrabRounding = style.FrameRounding; // Make GrabRounding always the same value as FrameRounding
{ bool border = (style.WindowBorderSize > 0.0f); if (ImGui::Checkbox("WindowBorder", &border)) { style.WindowBorderSize = border ? 1.0f : 0.0f; } }
ImGui::SameLine();
{ bool border = (style.FrameBorderSize > 0.0f); if (ImGui::Checkbox("FrameBorder", &border)) { style.FrameBorderSize = border ? 1.0f : 0.0f; } }
ImGui::SameLine();
{ bool border = (style.PopupBorderSize > 0.0f); if (ImGui::Checkbox("PopupBorder", &border)) { style.PopupBorderSize = border ? 1.0f : 0.0f; } }
// Save/Revert button
if (ImGui::Button("Save Ref"))
*ref = ref_saved_style = style;
ImGui::SameLine();
if (ImGui::Button("Revert Ref"))
style = *ref;
ImGui::SameLine();
HelpMarker(
"Save/Revert in local non-persistent storage. Default Colors definition are not affected. "
"Use \"Export\" below to save them somewhere.");
ImGui::Separator();
if (ImGui::BeginTabBar("##tabs", ImGuiTabBarFlags_None))
{
if (ImGui::BeginTabItem("Sizes"))
{
ImGui::SeparatorText("Main");
ImGui::SliderFloat2("WindowPadding", (float*)&style.WindowPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("FramePadding", (float*)&style.FramePadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("CellPadding", (float*)&style.CellPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("ItemSpacing", (float*)&style.ItemSpacing, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("ItemInnerSpacing", (float*)&style.ItemInnerSpacing, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("TouchExtraPadding", (float*)&style.TouchExtraPadding, 0.0f, 10.0f, "%.0f");
ImGui::SliderFloat("IndentSpacing", &style.IndentSpacing, 0.0f, 30.0f, "%.0f");
ImGui::SliderFloat("ScrollbarSize", &style.ScrollbarSize, 1.0f, 20.0f, "%.0f");
ImGui::SliderFloat("GrabMinSize", &style.GrabMinSize, 1.0f, 20.0f, "%.0f");
ImGui::SeparatorText("Borders");
ImGui::SliderFloat("WindowBorderSize", &style.WindowBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("ChildBorderSize", &style.ChildBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("PopupBorderSize", &style.PopupBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("FrameBorderSize", &style.FrameBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("TabBorderSize", &style.TabBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SeparatorText("Rounding");
ImGui::SliderFloat("WindowRounding", &style.WindowRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("ChildRounding", &style.ChildRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("PopupRounding", &style.PopupRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("ScrollbarRounding", &style.ScrollbarRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("GrabRounding", &style.GrabRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("TabRounding", &style.TabRounding, 0.0f, 12.0f, "%.0f");
ImGui::SeparatorText("Widgets");
ImGui::SliderFloat2("WindowTitleAlign", (float*)&style.WindowTitleAlign, 0.0f, 1.0f, "%.2f");
int window_menu_button_position = style.WindowMenuButtonPosition + 1;
if (ImGui::Combo("WindowMenuButtonPosition", (int*)&window_menu_button_position, "None\0Left\0Right\0"))
style.WindowMenuButtonPosition = window_menu_button_position - 1;
ImGui::Combo("ColorButtonPosition", (int*)&style.ColorButtonPosition, "Left\0Right\0");
ImGui::SliderFloat2("ButtonTextAlign", (float*)&style.ButtonTextAlign, 0.0f, 1.0f, "%.2f");
ImGui::SameLine(); HelpMarker("Alignment applies when a button is larger than its text content.");
ImGui::SliderFloat2("SelectableTextAlign", (float*)&style.SelectableTextAlign, 0.0f, 1.0f, "%.2f");
ImGui::SameLine(); HelpMarker("Alignment applies when a selectable is larger than its text content.");
ImGui::SliderFloat("SeparatorTextBorderSize", &style.SeparatorTextBorderSize, 0.0f, 10.0f, "%.0f");
ImGui::SliderFloat2("SeparatorTextAlign", (float*)&style.SeparatorTextAlign, 0.0f, 1.0f, "%.2f");
ImGui::SliderFloat2("SeparatorTextPadding", (float*)&style.SeparatorTextPadding, 0.0f, 40.0f, "%0.f");
ImGui::SliderFloat("LogSliderDeadzone", &style.LogSliderDeadzone, 0.0f, 12.0f, "%.0f");
ImGui::SeparatorText("Misc");
ImGui::SliderFloat2("DisplaySafeAreaPadding", (float*)&style.DisplaySafeAreaPadding, 0.0f, 30.0f, "%.0f"); ImGui::SameLine(); HelpMarker("Adjust if you cannot see the edges of your screen (e.g. on a TV where scaling has not been configured).");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Colors"))
{
static int output_dest = 0;
static bool output_only_modified = true;
if (ImGui::Button("Export"))
{
if (output_dest == 0)
ImGui::LogToClipboard();
else
ImGui::LogToTTY();
ImGui::LogText("ImVec4* colors = ImGui::GetStyle().Colors;" IM_NEWLINE);
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
const ImVec4& col = style.Colors[i];
const char* name = ImGui::GetStyleColorName(i);
if (!output_only_modified || memcmp(&col, &ref->Colors[i], sizeof(ImVec4)) != 0)
ImGui::LogText("colors[ImGuiCol_%s]%*s= ImVec4(%.2ff, %.2ff, %.2ff, %.2ff);" IM_NEWLINE,
name, 23 - (int)strlen(name), "", col.x, col.y, col.z, col.w);
}
ImGui::LogFinish();
}
ImGui::SameLine(); ImGui::SetNextItemWidth(120); ImGui::Combo("##output_type", &output_dest, "To Clipboard\0To TTY\0");
ImGui::SameLine(); ImGui::Checkbox("Only Modified Colors", &output_only_modified);
static ImGuiTextFilter filter;
filter.Draw("Filter colors", ImGui::GetFontSize() * 16);
static ImGuiColorEditFlags alpha_flags = 0;
if (ImGui::RadioButton("Opaque", alpha_flags == ImGuiColorEditFlags_None)) { alpha_flags = ImGuiColorEditFlags_None; } ImGui::SameLine();
if (ImGui::RadioButton("Alpha", alpha_flags == ImGuiColorEditFlags_AlphaPreview)) { alpha_flags = ImGuiColorEditFlags_AlphaPreview; } ImGui::SameLine();
if (ImGui::RadioButton("Both", alpha_flags == ImGuiColorEditFlags_AlphaPreviewHalf)) { alpha_flags = ImGuiColorEditFlags_AlphaPreviewHalf; } ImGui::SameLine();
HelpMarker(
"In the color list:\n"
"Left-click on color square to open color picker,\n"
"Right-click to open edit options menu.");
ImGui::BeginChild("##colors", ImVec2(0, 0), true, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar | ImGuiWindowFlags_NavFlattened);
ImGui::PushItemWidth(-160);
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
const char* name = ImGui::GetStyleColorName(i);
if (!filter.PassFilter(name))
continue;
ImGui::PushID(i);
ImGui::ColorEdit4("##color", (float*)&style.Colors[i], ImGuiColorEditFlags_AlphaBar | alpha_flags);
if (memcmp(&style.Colors[i], &ref->Colors[i], sizeof(ImVec4)) != 0)
{
// Tips: in a real user application, you may want to merge and use an icon font into the main font,
// so instead of "Save"/"Revert" you'd use icons!
// Read the FAQ and docs/FONTS.md about using icon fonts. It's really easy and super convenient!
ImGui::SameLine(0.0f, style.ItemInnerSpacing.x); if (ImGui::Button("Save")) { ref->Colors[i] = style.Colors[i]; }
ImGui::SameLine(0.0f, style.ItemInnerSpacing.x); if (ImGui::Button("Revert")) { style.Colors[i] = ref->Colors[i]; }
}
ImGui::SameLine(0.0f, style.ItemInnerSpacing.x);
ImGui::TextUnformatted(name);
ImGui::PopID();
}
ImGui::PopItemWidth();
ImGui::EndChild();
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Fonts"))
{
ImGuiIO& io = ImGui::GetIO();
ImFontAtlas* atlas = io.Fonts;
HelpMarker("Read FAQ and docs/FONTS.md for details on font loading.");
ImGui::ShowFontAtlas(atlas);
// Post-baking font scaling. Note that this is NOT the nice way of scaling fonts, read below.
// (we enforce hard clamping manually as by default DragFloat/SliderFloat allows CTRL+Click text to get out of bounds).
const float MIN_SCALE = 0.3f;
const float MAX_SCALE = 2.0f;
HelpMarker(
"Those are old settings provided for convenience.\n"
"However, the _correct_ way of scaling your UI is currently to reload your font at the designed size, "
"rebuild the font atlas, and call style.ScaleAllSizes() on a reference ImGuiStyle structure.\n"
"Using those settings here will give you poor quality results.");
static float window_scale = 1.0f;
ImGui::PushItemWidth(ImGui::GetFontSize() * 8);
if (ImGui::DragFloat("window scale", &window_scale, 0.005f, MIN_SCALE, MAX_SCALE, "%.2f", ImGuiSliderFlags_AlwaysClamp)) // Scale only this window
ImGui::SetWindowFontScale(window_scale);
ImGui::DragFloat("global scale", &io.FontGlobalScale, 0.005f, MIN_SCALE, MAX_SCALE, "%.2f", ImGuiSliderFlags_AlwaysClamp); // Scale everything
ImGui::PopItemWidth();
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Rendering"))
{
ImGui::Checkbox("Anti-aliased lines", &style.AntiAliasedLines);
ImGui::SameLine();
HelpMarker("When disabling anti-aliasing lines, you'll probably want to disable borders in your style as well.");
ImGui::Checkbox("Anti-aliased lines use texture", &style.AntiAliasedLinesUseTex);
ImGui::SameLine();
HelpMarker("Faster lines using texture data. Require backend to render with bilinear filtering (not point/nearest filtering).");
ImGui::Checkbox("Anti-aliased fill", &style.AntiAliasedFill);
ImGui::PushItemWidth(ImGui::GetFontSize() * 8);
ImGui::DragFloat("Curve Tessellation Tolerance", &style.CurveTessellationTol, 0.02f, 0.10f, 10.0f, "%.2f");
if (style.CurveTessellationTol < 0.10f) style.CurveTessellationTol = 0.10f;
// When editing the "Circle Segment Max Error" value, draw a preview of its effect on auto-tessellated circles.
ImGui::DragFloat("Circle Tessellation Max Error", &style.CircleTessellationMaxError , 0.005f, 0.10f, 5.0f, "%.2f", ImGuiSliderFlags_AlwaysClamp);
const bool show_samples = ImGui::IsItemActive();
if (show_samples)
ImGui::SetNextWindowPos(ImGui::GetCursorScreenPos());
if (show_samples && ImGui::BeginTooltip())
{
ImGui::TextUnformatted("(R = radius, N = number of segments)");
ImGui::Spacing();
ImDrawList* draw_list = ImGui::GetWindowDrawList();
const float min_widget_width = ImGui::CalcTextSize("N: MMM\nR: MMM").x;
for (int n = 0; n < 8; n++)
{
const float RAD_MIN = 5.0f;
const float RAD_MAX = 70.0f;
const float rad = RAD_MIN + (RAD_MAX - RAD_MIN) * (float)n / (8.0f - 1.0f);
ImGui::BeginGroup();
ImGui::Text("R: %.f\nN: %d", rad, draw_list->_CalcCircleAutoSegmentCount(rad));
const float canvas_width = IM_MAX(min_widget_width, rad * 2.0f);
const float offset_x = floorf(canvas_width * 0.5f);
const float offset_y = floorf(RAD_MAX);
const ImVec2 p1 = ImGui::GetCursorScreenPos();
draw_list->AddCircle(ImVec2(p1.x + offset_x, p1.y + offset_y), rad, ImGui::GetColorU32(ImGuiCol_Text));
ImGui::Dummy(ImVec2(canvas_width, RAD_MAX * 2));
/*
const ImVec2 p2 = ImGui::GetCursorScreenPos();
draw_list->AddCircleFilled(ImVec2(p2.x + offset_x, p2.y + offset_y), rad, ImGui::GetColorU32(ImGuiCol_Text));
ImGui::Dummy(ImVec2(canvas_width, RAD_MAX * 2));
*/
ImGui::EndGroup();
ImGui::SameLine();
}
ImGui::EndTooltip();
}
ImGui::SameLine();
HelpMarker("When drawing circle primitives with \"num_segments == 0\" tesselation will be calculated automatically.");
ImGui::DragFloat("Global Alpha", &style.Alpha, 0.005f, 0.20f, 1.0f, "%.2f"); // Not exposing zero here so user doesn't "lose" the UI (zero alpha clips all widgets). But application code could have a toggle to switch between zero and non-zero.
ImGui::DragFloat("Disabled Alpha", &style.DisabledAlpha, 0.005f, 0.0f, 1.0f, "%.2f"); ImGui::SameLine(); HelpMarker("Additional alpha multiplier for disabled items (multiply over current value of Alpha).");
ImGui::PopItemWidth();
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::PopItemWidth();
}
//-----------------------------------------------------------------------------
// [SECTION] User Guide / ShowUserGuide()
//-----------------------------------------------------------------------------
void ImGui::ShowUserGuide()
{
ImGuiIO& io = ImGui::GetIO();
ImGui::BulletText("Double-click on title bar to collapse window.");
ImGui::BulletText(
"Click and drag on lower corner to resize window\n"
"(double-click to auto fit window to its contents).");
ImGui::BulletText("CTRL+Click on a slider or drag box to input value as text.");
ImGui::BulletText("TAB/SHIFT+TAB to cycle through keyboard editable fields.");
ImGui::BulletText("CTRL+Tab to select a window.");
if (io.FontAllowUserScaling)
ImGui::BulletText("CTRL+Mouse Wheel to zoom window contents.");
ImGui::BulletText("While inputing text:\n");
ImGui::Indent();
ImGui::BulletText("CTRL+Left/Right to word jump.");
ImGui::BulletText("CTRL+A or double-click to select all.");
ImGui::BulletText("CTRL+X/C/V to use clipboard cut/copy/paste.");
ImGui::BulletText("CTRL+Z,CTRL+Y to undo/redo.");
ImGui::BulletText("ESCAPE to revert.");
ImGui::Unindent();
ImGui::BulletText("With keyboard navigation enabled:");
ImGui::Indent();
ImGui::BulletText("Arrow keys to navigate.");
ImGui::BulletText("Space to activate a widget.");
ImGui::BulletText("Return to input text into a widget.");
ImGui::BulletText("Escape to deactivate a widget, close popup, exit child window.");
ImGui::BulletText("Alt to jump to the menu layer of a window.");
ImGui::Unindent();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Main Menu Bar / ShowExampleAppMainMenuBar()
//-----------------------------------------------------------------------------
// - ShowExampleAppMainMenuBar()
// - ShowExampleMenuFile()
//-----------------------------------------------------------------------------
// Demonstrate creating a "main" fullscreen menu bar and populating it.
// Note the difference between BeginMainMenuBar() and BeginMenuBar():
// - BeginMenuBar() = menu-bar inside current window (which needs the ImGuiWindowFlags_MenuBar flag!)
// - BeginMainMenuBar() = helper to create menu-bar-sized window at the top of the main viewport + call BeginMenuBar() into it.
static void ShowExampleAppMainMenuBar()
{
if (ImGui::BeginMainMenuBar())
{
if (ImGui::BeginMenu("File"))
{
ShowExampleMenuFile();
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Edit"))
{
if (ImGui::MenuItem("Undo", "CTRL+Z")) {}
if (ImGui::MenuItem("Redo", "CTRL+Y", false, false)) {} // Disabled item
ImGui::Separator();
if (ImGui::MenuItem("Cut", "CTRL+X")) {}
if (ImGui::MenuItem("Copy", "CTRL+C")) {}
if (ImGui::MenuItem("Paste", "CTRL+V")) {}
ImGui::EndMenu();
}
ImGui::EndMainMenuBar();
}
}
// Note that shortcuts are currently provided for display only
// (future version will add explicit flags to BeginMenu() to request processing shortcuts)
static void ShowExampleMenuFile()
{
IMGUI_DEMO_MARKER("Examples/Menu");
ImGui::MenuItem("(demo menu)", NULL, false, false);
if (ImGui::MenuItem("New")) {}
if (ImGui::MenuItem("Open", "Ctrl+O")) {}
if (ImGui::BeginMenu("Open Recent"))
{
ImGui::MenuItem("fish_hat.c");
ImGui::MenuItem("fish_hat.inl");
ImGui::MenuItem("fish_hat.h");
if (ImGui::BeginMenu("More.."))
{
ImGui::MenuItem("Hello");
ImGui::MenuItem("Sailor");
if (ImGui::BeginMenu("Recurse.."))
{
ShowExampleMenuFile();
ImGui::EndMenu();
}
ImGui::EndMenu();
}
ImGui::EndMenu();
}
if (ImGui::MenuItem("Save", "Ctrl+S")) {}
if (ImGui::MenuItem("Save As..")) {}
ImGui::Separator();
IMGUI_DEMO_MARKER("Examples/Menu/Options");
if (ImGui::BeginMenu("Options"))
{
static bool enabled = true;
ImGui::MenuItem("Enabled", "", &enabled);
ImGui::BeginChild("child", ImVec2(0, 60), true);
for (int i = 0; i < 10; i++)
ImGui::Text("Scrolling Text %d", i);
ImGui::EndChild();
static float f = 0.5f;
static int n = 0;
ImGui::SliderFloat("Value", &f, 0.0f, 1.0f);
ImGui::InputFloat("Input", &f, 0.1f);
ImGui::Combo("Combo", &n, "Yes\0No\0Maybe\0\0");
ImGui::EndMenu();
}
IMGUI_DEMO_MARKER("Examples/Menu/Colors");
if (ImGui::BeginMenu("Colors"))
{
float sz = ImGui::GetTextLineHeight();
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
const char* name = ImGui::GetStyleColorName((ImGuiCol)i);
ImVec2 p = ImGui::GetCursorScreenPos();
ImGui::GetWindowDrawList()->AddRectFilled(p, ImVec2(p.x + sz, p.y + sz), ImGui::GetColorU32((ImGuiCol)i));
ImGui::Dummy(ImVec2(sz, sz));
ImGui::SameLine();
ImGui::MenuItem(name);
}
ImGui::EndMenu();
}
// Here we demonstrate appending again to the "Options" menu (which we already created above)
// Of course in this demo it is a little bit silly that this function calls BeginMenu("Options") twice.
// In a real code-base using it would make senses to use this feature from very different code locations.
if (ImGui::BeginMenu("Options")) // <-- Append!
{
IMGUI_DEMO_MARKER("Examples/Menu/Append to an existing menu");
static bool b = true;
ImGui::Checkbox("SomeOption", &b);
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Disabled", false)) // Disabled
{
IM_ASSERT(0);
}
if (ImGui::MenuItem("Checked", NULL, true)) {}
ImGui::Separator();
if (ImGui::MenuItem("Quit", "Alt+F4")) {}
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Debug Console / ShowExampleAppConsole()
//-----------------------------------------------------------------------------
// Demonstrate creating a simple console window, with scrolling, filtering, completion and history.
// For the console example, we are using a more C++ like approach of declaring a class to hold both data and functions.
struct ExampleAppConsole
{
char InputBuf[256];
ImVector<char*> Items;
ImVector<const char*> Commands;
ImVector<char*> History;
int HistoryPos; // -1: new line, 0..History.Size-1 browsing history.
ImGuiTextFilter Filter;
bool AutoScroll;
bool ScrollToBottom;
ExampleAppConsole()
{
IMGUI_DEMO_MARKER("Examples/Console");
ClearLog();
memset(InputBuf, 0, sizeof(InputBuf));
HistoryPos = -1;
// "CLASSIFY" is here to provide the test case where "C"+[tab] completes to "CL" and display multiple matches.
Commands.push_back("HELP");
Commands.push_back("HISTORY");
Commands.push_back("CLEAR");
Commands.push_back("CLASSIFY");
AutoScroll = true;
ScrollToBottom = false;
AddLog("Welcome to Dear ImGui!");
}
~ExampleAppConsole()
{
ClearLog();
for (int i = 0; i < History.Size; i++)
free(History[i]);
}
// Portable helpers
static int Stricmp(const char* s1, const char* s2) { int d; while ((d = toupper(*s2) - toupper(*s1)) == 0 && *s1) { s1++; s2++; } return d; }
static int Strnicmp(const char* s1, const char* s2, int n) { int d = 0; while (n > 0 && (d = toupper(*s2) - toupper(*s1)) == 0 && *s1) { s1++; s2++; n--; } return d; }
static char* Strdup(const char* s) { IM_ASSERT(s); size_t len = strlen(s) + 1; void* buf = malloc(len); IM_ASSERT(buf); return (char*)memcpy(buf, (const void*)s, len); }
static void Strtrim(char* s) { char* str_end = s + strlen(s); while (str_end > s && str_end[-1] == ' ') str_end--; *str_end = 0; }
void ClearLog()
{
for (int i = 0; i < Items.Size; i++)
free(Items[i]);
Items.clear();
}
void AddLog(const char* fmt, ...) IM_FMTARGS(2)
{
// FIXME-OPT
char buf[1024];
va_list args;
va_start(args, fmt);
vsnprintf(buf, IM_ARRAYSIZE(buf), fmt, args);
buf[IM_ARRAYSIZE(buf)-1] = 0;
va_end(args);
Items.push_back(Strdup(buf));
}
void Draw(const char* title, bool* p_open)
{
ImGui::SetNextWindowSize(ImVec2(520, 600), ImGuiCond_FirstUseEver);
if (!ImGui::Begin(title, p_open))
{
ImGui::End();
return;
}
// As a specific feature guaranteed by the library, after calling Begin() the last Item represent the title bar.
// So e.g. IsItemHovered() will return true when hovering the title bar.
// Here we create a context menu only available from the title bar.
if (ImGui::BeginPopupContextItem())
{
if (ImGui::MenuItem("Close Console"))
*p_open = false;
ImGui::EndPopup();
}
ImGui::TextWrapped(
"This example implements a console with basic coloring, completion (TAB key) and history (Up/Down keys). A more elaborate "
"implementation may want to store entries along with extra data such as timestamp, emitter, etc.");
ImGui::TextWrapped("Enter 'HELP' for help.");
// TODO: display items starting from the bottom
if (ImGui::SmallButton("Add Debug Text")) { AddLog("%d some text", Items.Size); AddLog("some more text"); AddLog("display very important message here!"); }
ImGui::SameLine();
if (ImGui::SmallButton("Add Debug Error")) { AddLog("[error] something went wrong"); }
ImGui::SameLine();
if (ImGui::SmallButton("Clear")) { ClearLog(); }
ImGui::SameLine();
bool copy_to_clipboard = ImGui::SmallButton("Copy");
//static float t = 0.0f; if (ImGui::GetTime() - t > 0.02f) { t = ImGui::GetTime(); AddLog("Spam %f", t); }
ImGui::Separator();
// Options menu
if (ImGui::BeginPopup("Options"))
{
ImGui::Checkbox("Auto-scroll", &AutoScroll);
ImGui::EndPopup();
}
// Options, Filter
if (ImGui::Button("Options"))
ImGui::OpenPopup("Options");
ImGui::SameLine();
Filter.Draw("Filter (\"incl,-excl\") (\"error\")", 180);
ImGui::Separator();
// Reserve enough left-over height for 1 separator + 1 input text
const float footer_height_to_reserve = ImGui::GetStyle().ItemSpacing.y + ImGui::GetFrameHeightWithSpacing();
if (ImGui::BeginChild("ScrollingRegion", ImVec2(0, -footer_height_to_reserve), false, ImGuiWindowFlags_HorizontalScrollbar))
{
if (ImGui::BeginPopupContextWindow())
{
if (ImGui::Selectable("Clear")) ClearLog();
ImGui::EndPopup();
}
// Display every line as a separate entry so we can change their color or add custom widgets.
// If you only want raw text you can use ImGui::TextUnformatted(log.begin(), log.end());
// NB- if you have thousands of entries this approach may be too inefficient and may require user-side clipping
// to only process visible items. The clipper will automatically measure the height of your first item and then
// "seek" to display only items in the visible area.
// To use the clipper we can replace your standard loop:
// for (int i = 0; i < Items.Size; i++)
// With:
// ImGuiListClipper clipper;
// clipper.Begin(Items.Size);
// while (clipper.Step())
// for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
// - That your items are evenly spaced (same height)
// - That you have cheap random access to your elements (you can access them given their index,
// without processing all the ones before)
// You cannot this code as-is if a filter is active because it breaks the 'cheap random-access' property.
// We would need random-access on the post-filtered list.
// A typical application wanting coarse clipping and filtering may want to pre-compute an array of indices
// or offsets of items that passed the filtering test, recomputing this array when user changes the filter,
// and appending newly elements as they are inserted. This is left as a task to the user until we can manage
// to improve this example code!
// If your items are of variable height:
// - Split them into same height items would be simpler and facilitate random-seeking into your list.
// - Consider using manual call to IsRectVisible() and skipping extraneous decoration from your items.
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(4, 1)); // Tighten spacing
if (copy_to_clipboard)
ImGui::LogToClipboard();
for (int i = 0; i < Items.Size; i++)
{
const char* item = Items[i];
if (!Filter.PassFilter(item))
continue;
// Normally you would store more information in your item than just a string.
// (e.g. make Items[] an array of structure, store color/type etc.)
ImVec4 color;
bool has_color = false;
if (strstr(item, "[error]")) { color = ImVec4(1.0f, 0.4f, 0.4f, 1.0f); has_color = true; }
else if (strncmp(item, "# ", 2) == 0) { color = ImVec4(1.0f, 0.8f, 0.6f, 1.0f); has_color = true; }
if (has_color)
ImGui::PushStyleColor(ImGuiCol_Text, color);
ImGui::TextUnformatted(item);
if (has_color)
ImGui::PopStyleColor();
}
if (copy_to_clipboard)
ImGui::LogFinish();
// Keep up at the bottom of the scroll region if we were already at the bottom at the beginning of the frame.
// Using a scrollbar or mouse-wheel will take away from the bottom edge.
if (ScrollToBottom || (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()))
ImGui::SetScrollHereY(1.0f);
ScrollToBottom = false;
ImGui::PopStyleVar();
}
ImGui::EndChild();
ImGui::Separator();
// Command-line
bool reclaim_focus = false;
ImGuiInputTextFlags input_text_flags = ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_EscapeClearsAll | ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_CallbackHistory;
if (ImGui::InputText("Input", InputBuf, IM_ARRAYSIZE(InputBuf), input_text_flags, &TextEditCallbackStub, (void*)this))
{
char* s = InputBuf;
Strtrim(s);
if (s[0])
ExecCommand(s);
strcpy(s, "");
reclaim_focus = true;
}
// Auto-focus on window apparition
ImGui::SetItemDefaultFocus();
if (reclaim_focus)
ImGui::SetKeyboardFocusHere(-1); // Auto focus previous widget
ImGui::End();
}
void ExecCommand(const char* command_line)
{
AddLog("# %s\n", command_line);
// Insert into history. First find match and delete it so it can be pushed to the back.
// This isn't trying to be smart or optimal.
HistoryPos = -1;
for (int i = History.Size - 1; i >= 0; i--)
if (Stricmp(History[i], command_line) == 0)
{
free(History[i]);
History.erase(History.begin() + i);
break;
}
History.push_back(Strdup(command_line));
// Process command
if (Stricmp(command_line, "CLEAR") == 0)
{
ClearLog();
}
else if (Stricmp(command_line, "HELP") == 0)
{
AddLog("Commands:");
for (int i = 0; i < Commands.Size; i++)
AddLog("- %s", Commands[i]);
}
else if (Stricmp(command_line, "HISTORY") == 0)
{
int first = History.Size - 10;
for (int i = first > 0 ? first : 0; i < History.Size; i++)
AddLog("%3d: %s\n", i, History[i]);
}
else
{
AddLog("Unknown command: '%s'\n", command_line);
}
// On command input, we scroll to bottom even if AutoScroll==false
ScrollToBottom = true;
}
// In C++11 you'd be better off using lambdas for this sort of forwarding callbacks
static int TextEditCallbackStub(ImGuiInputTextCallbackData* data)
{
ExampleAppConsole* console = (ExampleAppConsole*)data->UserData;
return console->TextEditCallback(data);
}
int TextEditCallback(ImGuiInputTextCallbackData* data)
{
//AddLog("cursor: %d, selection: %d-%d", data->CursorPos, data->SelectionStart, data->SelectionEnd);
switch (data->EventFlag)
{
case ImGuiInputTextFlags_CallbackCompletion:
{
// Example of TEXT COMPLETION
// Locate beginning of current word
const char* word_end = data->Buf + data->CursorPos;
const char* word_start = word_end;
while (word_start > data->Buf)
{
const char c = word_start[-1];
if (c == ' ' || c == '\t' || c == ',' || c == ';')
break;
word_start--;
}
// Build a list of candidates
ImVector<const char*> candidates;
for (int i = 0; i < Commands.Size; i++)
if (Strnicmp(Commands[i], word_start, (int)(word_end - word_start)) == 0)
candidates.push_back(Commands[i]);
if (candidates.Size == 0)
{
// No match
AddLog("No match for \"%.*s\"!\n", (int)(word_end - word_start), word_start);
}
else if (candidates.Size == 1)
{
// Single match. Delete the beginning of the word and replace it entirely so we've got nice casing.
data->DeleteChars((int)(word_start - data->Buf), (int)(word_end - word_start));
data->InsertChars(data->CursorPos, candidates[0]);
data->InsertChars(data->CursorPos, " ");
}
else
{
// Multiple matches. Complete as much as we can..
// So inputing "C"+Tab will complete to "CL" then display "CLEAR" and "CLASSIFY" as matches.
int match_len = (int)(word_end - word_start);
for (;;)
{
int c = 0;
bool all_candidates_matches = true;
for (int i = 0; i < candidates.Size && all_candidates_matches; i++)
if (i == 0)
c = toupper(candidates[i][match_len]);
else if (c == 0 || c != toupper(candidates[i][match_len]))
all_candidates_matches = false;
if (!all_candidates_matches)
break;
match_len++;
}
if (match_len > 0)
{
data->DeleteChars((int)(word_start - data->Buf), (int)(word_end - word_start));
data->InsertChars(data->CursorPos, candidates[0], candidates[0] + match_len);
}
// List matches
AddLog("Possible matches:\n");
for (int i = 0; i < candidates.Size; i++)
AddLog("- %s\n", candidates[i]);
}
break;
}
case ImGuiInputTextFlags_CallbackHistory:
{
// Example of HISTORY
const int prev_history_pos = HistoryPos;
if (data->EventKey == ImGuiKey_UpArrow)
{
if (HistoryPos == -1)
HistoryPos = History.Size - 1;
else if (HistoryPos > 0)
HistoryPos--;
}
else if (data->EventKey == ImGuiKey_DownArrow)
{
if (HistoryPos != -1)
if (++HistoryPos >= History.Size)
HistoryPos = -1;
}
// A better implementation would preserve the data on the current input line along with cursor position.
if (prev_history_pos != HistoryPos)
{
const char* history_str = (HistoryPos >= 0) ? History[HistoryPos] : "";
data->DeleteChars(0, data->BufTextLen);
data->InsertChars(0, history_str);
}
}
}
return 0;
}
};
static void ShowExampleAppConsole(bool* p_open)
{
static ExampleAppConsole console;
console.Draw("Example: Console", p_open);
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Debug Log / ShowExampleAppLog()
//-----------------------------------------------------------------------------
// Usage:
// static ExampleAppLog my_log;
// my_log.AddLog("Hello %d world\n", 123);
// my_log.Draw("title");
struct ExampleAppLog
{
ImGuiTextBuffer Buf;
ImGuiTextFilter Filter;
ImVector<int> LineOffsets; // Index to lines offset. We maintain this with AddLog() calls.
bool AutoScroll; // Keep scrolling if already at the bottom.
ExampleAppLog()
{
AutoScroll = true;
Clear();
}
void Clear()
{
Buf.clear();
LineOffsets.clear();
LineOffsets.push_back(0);
}
void AddLog(const char* fmt, ...) IM_FMTARGS(2)
{
int old_size = Buf.size();
va_list args;
va_start(args, fmt);
Buf.appendfv(fmt, args);
va_end(args);
for (int new_size = Buf.size(); old_size < new_size; old_size++)
if (Buf[old_size] == '\n')
LineOffsets.push_back(old_size + 1);
}
void Draw(const char* title, bool* p_open = NULL)
{
if (!ImGui::Begin(title, p_open))
{
ImGui::End();
return;
}
// Options menu
if (ImGui::BeginPopup("Options"))
{
ImGui::Checkbox("Auto-scroll", &AutoScroll);
ImGui::EndPopup();
}
// Main window
if (ImGui::Button("Options"))
ImGui::OpenPopup("Options");
ImGui::SameLine();
bool clear = ImGui::Button("Clear");
ImGui::SameLine();
bool copy = ImGui::Button("Copy");
ImGui::SameLine();
Filter.Draw("Filter", -100.0f);
ImGui::Separator();
if (ImGui::BeginChild("scrolling", ImVec2(0, 0), false, ImGuiWindowFlags_HorizontalScrollbar))
{
if (clear)
Clear();
if (copy)
ImGui::LogToClipboard();
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
const char* buf = Buf.begin();
const char* buf_end = Buf.end();
if (Filter.IsActive())
{
// In this example we don't use the clipper when Filter is enabled.
// This is because we don't have random access to the result of our filter.
// A real application processing logs with ten of thousands of entries may want to store the result of
// search/filter.. especially if the filtering function is not trivial (e.g. reg-exp).
for (int line_no = 0; line_no < LineOffsets.Size; line_no++)
{
const char* line_start = buf + LineOffsets[line_no];
const char* line_end = (line_no + 1 < LineOffsets.Size) ? (buf + LineOffsets[line_no + 1] - 1) : buf_end;
if (Filter.PassFilter(line_start, line_end))
ImGui::TextUnformatted(line_start, line_end);
}
}
else
{
// The simplest and easy way to display the entire buffer:
// ImGui::TextUnformatted(buf_begin, buf_end);
// And it'll just work. TextUnformatted() has specialization for large blob of text and will fast-forward
// to skip non-visible lines. Here we instead demonstrate using the clipper to only process lines that are
// within the visible area.
// If you have tens of thousands of items and their processing cost is non-negligible, coarse clipping them
// on your side is recommended. Using ImGuiListClipper requires
// - A) random access into your data
// - B) items all being the same height,
// both of which we can handle since we have an array pointing to the beginning of each line of text.
// When using the filter (in the block of code above) we don't have random access into the data to display
// anymore, which is why we don't use the clipper. Storing or skimming through the search result would make
// it possible (and would be recommended if you want to search through tens of thousands of entries).
ImGuiListClipper clipper;
clipper.Begin(LineOffsets.Size);
while (clipper.Step())
{
for (int line_no = clipper.DisplayStart; line_no < clipper.DisplayEnd; line_no++)
{
const char* line_start = buf + LineOffsets[line_no];
const char* line_end = (line_no + 1 < LineOffsets.Size) ? (buf + LineOffsets[line_no + 1] - 1) : buf_end;
ImGui::TextUnformatted(line_start, line_end);
}
}
clipper.End();
}
ImGui::PopStyleVar();
// Keep up at the bottom of the scroll region if we were already at the bottom at the beginning of the frame.
// Using a scrollbar or mouse-wheel will take away from the bottom edge.
if (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY())
ImGui::SetScrollHereY(1.0f);
}
ImGui::EndChild();
ImGui::End();
}
};
// Demonstrate creating a simple log window with basic filtering.
static void ShowExampleAppLog(bool* p_open)
{
static ExampleAppLog log;
// For the demo: add a debug button _BEFORE_ the normal log window contents
// We take advantage of a rarely used feature: multiple calls to Begin()/End() are appending to the _same_ window.
// Most of the contents of the window will be added by the log.Draw() call.
ImGui::SetNextWindowSize(ImVec2(500, 400), ImGuiCond_FirstUseEver);
ImGui::Begin("Example: Log", p_open);
IMGUI_DEMO_MARKER("Examples/Log");
if (ImGui::SmallButton("[Debug] Add 5 entries"))
{
static int counter = 0;
const char* categories[3] = { "info", "warn", "error" };
const char* words[] = { "Bumfuzzled", "Cattywampus", "Snickersnee", "Abibliophobia", "Absquatulate", "Nincompoop", "Pauciloquent" };
for (int n = 0; n < 5; n++)
{
const char* category = categories[counter % IM_ARRAYSIZE(categories)];
const char* word = words[counter % IM_ARRAYSIZE(words)];
log.AddLog("[%05d] [%s] Hello, current time is %.1f, here's a word: '%s'\n",
ImGui::GetFrameCount(), category, ImGui::GetTime(), word);
counter++;
}
}
ImGui::End();
// Actually call in the regular Log helper (which will Begin() into the same window as we just did)
log.Draw("Example: Log", p_open);
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Simple Layout / ShowExampleAppLayout()
//-----------------------------------------------------------------------------
// Demonstrate create a window with multiple child windows.
static void ShowExampleAppLayout(bool* p_open)
{
ImGui::SetNextWindowSize(ImVec2(500, 440), ImGuiCond_FirstUseEver);
if (ImGui::Begin("Example: Simple layout", p_open, ImGuiWindowFlags_MenuBar))
{
IMGUI_DEMO_MARKER("Examples/Simple layout");
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("File"))
{
if (ImGui::MenuItem("Close", "Ctrl+W")) { *p_open = false; }
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
// Left
static int selected = 0;
{
ImGui::BeginChild("left pane", ImVec2(150, 0), true);
for (int i = 0; i < 100; i++)
{
// FIXME: Good candidate to use ImGuiSelectableFlags_SelectOnNav
char label[128];
sprintf(label, "MyObject %d", i);
if (ImGui::Selectable(label, selected == i))
selected = i;
}
ImGui::EndChild();
}
ImGui::SameLine();
// Right
{
ImGui::BeginGroup();
ImGui::BeginChild("item view", ImVec2(0, -ImGui::GetFrameHeightWithSpacing())); // Leave room for 1 line below us
ImGui::Text("MyObject: %d", selected);
ImGui::Separator();
if (ImGui::BeginTabBar("##Tabs", ImGuiTabBarFlags_None))
{
if (ImGui::BeginTabItem("Description"))
{
ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Details"))
{
ImGui::Text("ID: 0123456789");
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::EndChild();
if (ImGui::Button("Revert")) {}
ImGui::SameLine();
if (ImGui::Button("Save")) {}
ImGui::EndGroup();
}
}
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
//-----------------------------------------------------------------------------
static void ShowPlaceholderObject(const char* prefix, int uid)
{
// Use object uid as identifier. Most commonly you could also use the object pointer as a base ID.
ImGui::PushID(uid);
// Text and Tree nodes are less high than framed widgets, using AlignTextToFramePadding() we add vertical spacing to make the tree lines equal high.
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::AlignTextToFramePadding();
bool node_open = ImGui::TreeNode("Object", "%s_%u", prefix, uid);
ImGui::TableSetColumnIndex(1);
ImGui::Text("my sailor is rich");
if (node_open)
{
static float placeholder_members[8] = { 0.0f, 0.0f, 1.0f, 3.1416f, 100.0f, 999.0f };
for (int i = 0; i < 8; i++)
{
ImGui::PushID(i); // Use field index as identifier.
if (i < 2)
{
ShowPlaceholderObject("Child", 424242);
}
else
{
// Here we use a TreeNode to highlight on hover (we could use e.g. Selectable as well)
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::AlignTextToFramePadding();
ImGuiTreeNodeFlags flags = ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_Bullet;
ImGui::TreeNodeEx("Field", flags, "Field_%d", i);
ImGui::TableSetColumnIndex(1);
ImGui::SetNextItemWidth(-FLT_MIN);
if (i >= 5)
ImGui::InputFloat("##value", &placeholder_members[i], 1.0f);
else
ImGui::DragFloat("##value", &placeholder_members[i], 0.01f);
ImGui::NextColumn();
}
ImGui::PopID();
}
ImGui::TreePop();
}
ImGui::PopID();
}
// Demonstrate create a simple property editor.
static void ShowExampleAppPropertyEditor(bool* p_open)
{
ImGui::SetNextWindowSize(ImVec2(430, 450), ImGuiCond_FirstUseEver);
if (!ImGui::Begin("Example: Property editor", p_open))
{
ImGui::End();
return;
}
IMGUI_DEMO_MARKER("Examples/Property Editor");
HelpMarker(
"This example shows how you may implement a property editor using two columns.\n"
"All objects/fields data are dummies here.\n"
"Remember that in many simple cases, you can use ImGui::SameLine(xxx) to position\n"
"your cursor horizontally instead of using the Columns() API.");
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2, 2));
if (ImGui::BeginTable("split", 2, ImGuiTableFlags_BordersOuter | ImGuiTableFlags_Resizable))
{
// Iterate placeholder objects (all the same data)
for (int obj_i = 0; obj_i < 4; obj_i++)
{
ShowPlaceholderObject("Object", obj_i);
//ImGui::Separator();
}
ImGui::EndTable();
}
ImGui::PopStyleVar();
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Long Text / ShowExampleAppLongText()
//-----------------------------------------------------------------------------
// Demonstrate/test rendering huge amount of text, and the incidence of clipping.
static void ShowExampleAppLongText(bool* p_open)
{
ImGui::SetNextWindowSize(ImVec2(520, 600), ImGuiCond_FirstUseEver);
if (!ImGui::Begin("Example: Long text display", p_open))
{
ImGui::End();
return;
}
IMGUI_DEMO_MARKER("Examples/Long text display");
static int test_type = 0;
static ImGuiTextBuffer log;
static int lines = 0;
ImGui::Text("Printing unusually long amount of text.");
ImGui::Combo("Test type", &test_type,
"Single call to TextUnformatted()\0"
"Multiple calls to Text(), clipped\0"
"Multiple calls to Text(), not clipped (slow)\0");
ImGui::Text("Buffer contents: %d lines, %d bytes", lines, log.size());
if (ImGui::Button("Clear")) { log.clear(); lines = 0; }
ImGui::SameLine();
if (ImGui::Button("Add 1000 lines"))
{
for (int i = 0; i < 1000; i++)
log.appendf("%i The quick brown fox jumps over the lazy dog\n", lines + i);
lines += 1000;
}
ImGui::BeginChild("Log");
switch (test_type)
{
case 0:
// Single call to TextUnformatted() with a big buffer
ImGui::TextUnformatted(log.begin(), log.end());
break;
case 1:
{
// Multiple calls to Text(), manually coarsely clipped - demonstrate how to use the ImGuiListClipper helper.
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
ImGuiListClipper clipper;
clipper.Begin(lines);
while (clipper.Step())
for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
ImGui::Text("%i The quick brown fox jumps over the lazy dog", i);
ImGui::PopStyleVar();
break;
}
case 2:
// Multiple calls to Text(), not clipped (slow)
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
for (int i = 0; i < lines; i++)
ImGui::Text("%i The quick brown fox jumps over the lazy dog", i);
ImGui::PopStyleVar();
break;
}
ImGui::EndChild();
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Auto Resize / ShowExampleAppAutoResize()
//-----------------------------------------------------------------------------
// Demonstrate creating a window which gets auto-resized according to its content.
static void ShowExampleAppAutoResize(bool* p_open)
{
if (!ImGui::Begin("Example: Auto-resizing window", p_open, ImGuiWindowFlags_AlwaysAutoResize))
{
ImGui::End();
return;
}
IMGUI_DEMO_MARKER("Examples/Auto-resizing window");
static int lines = 10;
ImGui::TextUnformatted(
"Window will resize every-frame to the size of its content.\n"
"Note that you probably don't want to query the window size to\n"
"output your content because that would create a feedback loop.");
ImGui::SliderInt("Number of lines", &lines, 1, 20);
for (int i = 0; i < lines; i++)
ImGui::Text("%*sThis is line %d", i * 4, "", i); // Pad with space to extend size horizontally
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Constrained Resize / ShowExampleAppConstrainedResize()
//-----------------------------------------------------------------------------
// Demonstrate creating a window with custom resize constraints.
// Note that size constraints currently don't work on a docked window (when in 'docking' branch)
static void ShowExampleAppConstrainedResize(bool* p_open)
{
struct CustomConstraints
{
// Helper functions to demonstrate programmatic constraints
// FIXME: This doesn't take account of decoration size (e.g. title bar), library should make this easier.
static void AspectRatio(ImGuiSizeCallbackData* data) { float aspect_ratio = *(float*)data->UserData; data->DesiredSize.x = IM_MAX(data->CurrentSize.x, data->CurrentSize.y); data->DesiredSize.y = (float)(int)(data->DesiredSize.x / aspect_ratio); }
static void Square(ImGuiSizeCallbackData* data) { data->DesiredSize.x = data->DesiredSize.y = IM_MAX(data->CurrentSize.x, data->CurrentSize.y); }
static void Step(ImGuiSizeCallbackData* data) { float step = *(float*)data->UserData; data->DesiredSize = ImVec2((int)(data->CurrentSize.x / step + 0.5f) * step, (int)(data->CurrentSize.y / step + 0.5f) * step); }
};
const char* test_desc[] =
{
"Between 100x100 and 500x500",
"At least 100x100",
"Resize vertical only",
"Resize horizontal only",
"Width Between 400 and 500",
"Custom: Aspect Ratio 16:9",
"Custom: Always Square",
"Custom: Fixed Steps (100)",
};
// Options
static bool auto_resize = false;
static bool window_padding = true;
static int type = 5; // Aspect Ratio
static int display_lines = 10;
// Submit constraint
float aspect_ratio = 16.0f / 9.0f;
float fixed_step = 100.0f;
if (type == 0) ImGui::SetNextWindowSizeConstraints(ImVec2(100, 100), ImVec2(500, 500)); // Between 100x100 and 500x500
if (type == 1) ImGui::SetNextWindowSizeConstraints(ImVec2(100, 100), ImVec2(FLT_MAX, FLT_MAX)); // Width > 100, Height > 100
if (type == 2) ImGui::SetNextWindowSizeConstraints(ImVec2(-1, 0), ImVec2(-1, FLT_MAX)); // Vertical only
if (type == 3) ImGui::SetNextWindowSizeConstraints(ImVec2(0, -1), ImVec2(FLT_MAX, -1)); // Horizontal only
if (type == 4) ImGui::SetNextWindowSizeConstraints(ImVec2(400, -1), ImVec2(500, -1)); // Width Between and 400 and 500
if (type == 5) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0), ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::AspectRatio, (void*)&aspect_ratio); // Aspect ratio
if (type == 6) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0), ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::Square); // Always Square
if (type == 7) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0), ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::Step, (void*)&fixed_step); // Fixed Step
// Submit window
if (!window_padding)
ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
const ImGuiWindowFlags window_flags = auto_resize ? ImGuiWindowFlags_AlwaysAutoResize : 0;
const bool window_open = ImGui::Begin("Example: Constrained Resize", p_open, window_flags);
if (!window_padding)
ImGui::PopStyleVar();
if (window_open)
{
IMGUI_DEMO_MARKER("Examples/Constrained Resizing window");
if (ImGui::GetIO().KeyShift)
{
// Display a dummy viewport (in your real app you would likely use ImageButton() to display a texture.
ImVec2 avail_size = ImGui::GetContentRegionAvail();
ImVec2 pos = ImGui::GetCursorScreenPos();
ImGui::ColorButton("viewport", ImVec4(0.5f, 0.2f, 0.5f, 1.0f), ImGuiColorEditFlags_NoTooltip | ImGuiColorEditFlags_NoDragDrop, avail_size);
ImGui::SetCursorScreenPos(ImVec2(pos.x + 10, pos.y + 10));
ImGui::Text("%.2f x %.2f", avail_size.x, avail_size.y);
}
else
{
ImGui::Text("(Hold SHIFT to display a dummy viewport)");
if (ImGui::Button("Set 200x200")) { ImGui::SetWindowSize(ImVec2(200, 200)); } ImGui::SameLine();
if (ImGui::Button("Set 500x500")) { ImGui::SetWindowSize(ImVec2(500, 500)); } ImGui::SameLine();
if (ImGui::Button("Set 800x200")) { ImGui::SetWindowSize(ImVec2(800, 200)); }
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 20);
ImGui::Combo("Constraint", &type, test_desc, IM_ARRAYSIZE(test_desc));
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 20);
ImGui::DragInt("Lines", &display_lines, 0.2f, 1, 100);
ImGui::Checkbox("Auto-resize", &auto_resize);
ImGui::Checkbox("Window padding", &window_padding);
for (int i = 0; i < display_lines; i++)
ImGui::Text("%*sHello, sailor! Making this line long enough for the example.", i * 4, "");
}
}
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Simple overlay / ShowExampleAppSimpleOverlay()
//-----------------------------------------------------------------------------
// Demonstrate creating a simple static window with no decoration
// + a context-menu to choose which corner of the screen to use.
static void ShowExampleAppSimpleOverlay(bool* p_open)
{
static int location = 0;
ImGuiIO& io = ImGui::GetIO();
ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoNav;
if (location >= 0)
{
const float PAD = 10.0f;
const ImGuiViewport* viewport = ImGui::GetMainViewport();
ImVec2 work_pos = viewport->WorkPos; // Use work area to avoid menu-bar/task-bar, if any!
ImVec2 work_size = viewport->WorkSize;
ImVec2 window_pos, window_pos_pivot;
window_pos.x = (location & 1) ? (work_pos.x + work_size.x - PAD) : (work_pos.x + PAD);
window_pos.y = (location & 2) ? (work_pos.y + work_size.y - PAD) : (work_pos.y + PAD);
window_pos_pivot.x = (location & 1) ? 1.0f : 0.0f;
window_pos_pivot.y = (location & 2) ? 1.0f : 0.0f;
ImGui::SetNextWindowPos(window_pos, ImGuiCond_Always, window_pos_pivot);
window_flags |= ImGuiWindowFlags_NoMove;
}
else if (location == -2)
{
// Center window
ImGui::SetNextWindowPos(ImGui::GetMainViewport()->GetCenter(), ImGuiCond_Always, ImVec2(0.5f, 0.5f));
window_flags |= ImGuiWindowFlags_NoMove;
}
ImGui::SetNextWindowBgAlpha(0.35f); // Transparent background
if (ImGui::Begin("Example: Simple overlay", p_open, window_flags))
{
IMGUI_DEMO_MARKER("Examples/Simple Overlay");
ImGui::Text("Simple overlay\n" "(right-click to change position)");
ImGui::Separator();
if (ImGui::IsMousePosValid())
ImGui::Text("Mouse Position: (%.1f,%.1f)", io.MousePos.x, io.MousePos.y);
else
ImGui::Text("Mouse Position: <invalid>");
if (ImGui::BeginPopupContextWindow())
{
if (ImGui::MenuItem("Custom", NULL, location == -1)) location = -1;
if (ImGui::MenuItem("Center", NULL, location == -2)) location = -2;
if (ImGui::MenuItem("Top-left", NULL, location == 0)) location = 0;
if (ImGui::MenuItem("Top-right", NULL, location == 1)) location = 1;
if (ImGui::MenuItem("Bottom-left", NULL, location == 2)) location = 2;
if (ImGui::MenuItem("Bottom-right", NULL, location == 3)) location = 3;
if (p_open && ImGui::MenuItem("Close")) *p_open = false;
ImGui::EndPopup();
}
}
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Fullscreen window / ShowExampleAppFullscreen()
//-----------------------------------------------------------------------------
// Demonstrate creating a window covering the entire screen/viewport
static void ShowExampleAppFullscreen(bool* p_open)
{
static bool use_work_area = true;
static ImGuiWindowFlags flags = ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings;
// We demonstrate using the full viewport area or the work area (without menu-bars, task-bars etc.)
// Based on your use case you may want one of the other.
const ImGuiViewport* viewport = ImGui::GetMainViewport();
ImGui::SetNextWindowPos(use_work_area ? viewport->WorkPos : viewport->Pos);
ImGui::SetNextWindowSize(use_work_area ? viewport->WorkSize : viewport->Size);
if (ImGui::Begin("Example: Fullscreen window", p_open, flags))
{
ImGui::Checkbox("Use work area instead of main area", &use_work_area);
ImGui::SameLine();
HelpMarker("Main Area = entire viewport,\nWork Area = entire viewport minus sections used by the main menu bars, task bars etc.\n\nEnable the main-menu bar in Examples menu to see the difference.");
ImGui::CheckboxFlags("ImGuiWindowFlags_NoBackground", &flags, ImGuiWindowFlags_NoBackground);
ImGui::CheckboxFlags("ImGuiWindowFlags_NoDecoration", &flags, ImGuiWindowFlags_NoDecoration);
ImGui::Indent();
ImGui::CheckboxFlags("ImGuiWindowFlags_NoTitleBar", &flags, ImGuiWindowFlags_NoTitleBar);
ImGui::CheckboxFlags("ImGuiWindowFlags_NoCollapse", &flags, ImGuiWindowFlags_NoCollapse);
ImGui::CheckboxFlags("ImGuiWindowFlags_NoScrollbar", &flags, ImGuiWindowFlags_NoScrollbar);
ImGui::Unindent();
if (p_open && ImGui::Button("Close this window"))
*p_open = false;
}
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Manipulating Window Titles / ShowExampleAppWindowTitles()
//-----------------------------------------------------------------------------
// Demonstrate the use of "##" and "###" in identifiers to manipulate ID generation.
// This applies to all regular items as well.
// Read FAQ section "How can I have multiple widgets with the same label?" for details.
static void ShowExampleAppWindowTitles(bool*)
{
const ImGuiViewport* viewport = ImGui::GetMainViewport();
const ImVec2 base_pos = viewport->Pos;
// By default, Windows are uniquely identified by their title.
// You can use the "##" and "###" markers to manipulate the display/ID.
// Using "##" to display same title but have unique identifier.
ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 100), ImGuiCond_FirstUseEver);
ImGui::Begin("Same title as another window##1");
IMGUI_DEMO_MARKER("Examples/Manipulating window titles");
ImGui::Text("This is window 1.\nMy title is the same as window 2, but my identifier is unique.");
ImGui::End();
ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 200), ImGuiCond_FirstUseEver);
ImGui::Begin("Same title as another window##2");
ImGui::Text("This is window 2.\nMy title is the same as window 1, but my identifier is unique.");
ImGui::End();
// Using "###" to display a changing title but keep a static identifier "AnimatedTitle"
char buf[128];
sprintf(buf, "Animated title %c %d###AnimatedTitle", "|/-\\"[(int)(ImGui::GetTime() / 0.25f) & 3], ImGui::GetFrameCount());
ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 300), ImGuiCond_FirstUseEver);
ImGui::Begin(buf);
ImGui::Text("This window has a changing title.");
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Custom Rendering using ImDrawList API / ShowExampleAppCustomRendering()
//-----------------------------------------------------------------------------
// Demonstrate using the low-level ImDrawList to draw custom shapes.
static void ShowExampleAppCustomRendering(bool* p_open)
{
if (!ImGui::Begin("Example: Custom rendering", p_open))
{
ImGui::End();
return;
}
IMGUI_DEMO_MARKER("Examples/Custom Rendering");
// Tip: If you do a lot of custom rendering, you probably want to use your own geometrical types and benefit of
// overloaded operators, etc. Define IM_VEC2_CLASS_EXTRA in imconfig.h to create implicit conversions between your
// types and ImVec2/ImVec4. Dear ImGui defines overloaded operators but they are internal to imgui.cpp and not
// exposed outside (to avoid messing with your types) In this example we are not using the maths operators!
if (ImGui::BeginTabBar("##TabBar"))
{
if (ImGui::BeginTabItem("Primitives"))
{
ImGui::PushItemWidth(-ImGui::GetFontSize() * 15);
ImDrawList* draw_list = ImGui::GetWindowDrawList();
// Draw gradients
// (note that those are currently exacerbating our sRGB/Linear issues)
// Calling ImGui::GetColorU32() multiplies the given colors by the current Style Alpha, but you may pass the IM_COL32() directly as well..
ImGui::Text("Gradients");
ImVec2 gradient_size = ImVec2(ImGui::CalcItemWidth(), ImGui::GetFrameHeight());
{
ImVec2 p0 = ImGui::GetCursorScreenPos();
ImVec2 p1 = ImVec2(p0.x + gradient_size.x, p0.y + gradient_size.y);
ImU32 col_a = ImGui::GetColorU32(IM_COL32(0, 0, 0, 255));
ImU32 col_b = ImGui::GetColorU32(IM_COL32(255, 255, 255, 255));
draw_list->AddRectFilledMultiColor(p0, p1, col_a, col_b, col_b, col_a);
ImGui::InvisibleButton("##gradient1", gradient_size);
}
{
ImVec2 p0 = ImGui::GetCursorScreenPos();
ImVec2 p1 = ImVec2(p0.x + gradient_size.x, p0.y + gradient_size.y);
ImU32 col_a = ImGui::GetColorU32(IM_COL32(0, 255, 0, 255));
ImU32 col_b = ImGui::GetColorU32(IM_COL32(255, 0, 0, 255));
draw_list->AddRectFilledMultiColor(p0, p1, col_a, col_b, col_b, col_a);
ImGui::InvisibleButton("##gradient2", gradient_size);
}
// Draw a bunch of primitives
ImGui::Text("All primitives");
static float sz = 36.0f;
static float thickness = 3.0f;
static int ngon_sides = 6;
static bool circle_segments_override = false;
static int circle_segments_override_v = 12;
static bool curve_segments_override = false;
static int curve_segments_override_v = 8;
static ImVec4 colf = ImVec4(1.0f, 1.0f, 0.4f, 1.0f);
ImGui::DragFloat("Size", &sz, 0.2f, 2.0f, 100.0f, "%.0f");
ImGui::DragFloat("Thickness", &thickness, 0.05f, 1.0f, 8.0f, "%.02f");
ImGui::SliderInt("N-gon sides", &ngon_sides, 3, 12);
ImGui::Checkbox("##circlesegmentoverride", &circle_segments_override);
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
circle_segments_override |= ImGui::SliderInt("Circle segments override", &circle_segments_override_v, 3, 40);
ImGui::Checkbox("##curvessegmentoverride", &curve_segments_override);
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
curve_segments_override |= ImGui::SliderInt("Curves segments override", &curve_segments_override_v, 3, 40);
ImGui::ColorEdit4("Color", &colf.x);
const ImVec2 p = ImGui::GetCursorScreenPos();
const ImU32 col = ImColor(colf);
const float spacing = 10.0f;
const ImDrawFlags corners_tl_br = ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBottomRight;
const float rounding = sz / 5.0f;
const int circle_segments = circle_segments_override ? circle_segments_override_v : 0;
const int curve_segments = curve_segments_override ? curve_segments_override_v : 0;
float x = p.x + 4.0f;
float y = p.y + 4.0f;
for (int n = 0; n < 2; n++)
{
// First line uses a thickness of 1.0f, second line uses the configurable thickness
float th = (n == 0) ? 1.0f : thickness;
draw_list->AddNgon(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, ngon_sides, th); x += sz + spacing; // N-gon
draw_list->AddCircle(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments, th); x += sz + spacing; // Circle
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 0.0f, ImDrawFlags_None, th); x += sz + spacing; // Square
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, rounding, ImDrawFlags_None, th); x += sz + spacing; // Square with all rounded corners
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, rounding, corners_tl_br, th); x += sz + spacing; // Square with two rounded corners
draw_list->AddTriangle(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col, th);x += sz + spacing; // Triangle
//draw_list->AddTriangle(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col, th);x+= sz*0.4f + spacing; // Thin triangle
draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y), col, th); x += sz + spacing; // Horizontal line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x, y + sz), col, th); x += spacing; // Vertical line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y + sz), col, th); x += sz + spacing; // Diagonal line
// Quadratic Bezier Curve (3 control points)
ImVec2 cp3[3] = { ImVec2(x, y + sz * 0.6f), ImVec2(x + sz * 0.5f, y - sz * 0.4f), ImVec2(x + sz, y + sz) };
draw_list->AddBezierQuadratic(cp3[0], cp3[1], cp3[2], col, th, curve_segments); x += sz + spacing;
// Cubic Bezier Curve (4 control points)
ImVec2 cp4[4] = { ImVec2(x, y), ImVec2(x + sz * 1.3f, y + sz * 0.3f), ImVec2(x + sz - sz * 1.3f, y + sz - sz * 0.3f), ImVec2(x + sz, y + sz) };
draw_list->AddBezierCubic(cp4[0], cp4[1], cp4[2], cp4[3], col, th, curve_segments);
x = p.x + 4;
y += sz + spacing;
}
draw_list->AddNgonFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz*0.5f, col, ngon_sides); x += sz + spacing; // N-gon
draw_list->AddCircleFilled(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments); x += sz + spacing; // Circle
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col); x += sz + spacing; // Square
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f); x += sz + spacing; // Square with all rounded corners
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br); x += sz + spacing; // Square with two rounded corners
draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col); x += sz + spacing; // Triangle
//draw_list->AddTriangleFilled(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col); x += sz*0.4f + spacing; // Thin triangle
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + thickness), col); x += sz + spacing; // Horizontal line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + thickness, y + sz), col); x += spacing * 2.0f;// Vertical line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + 1, y + 1), col); x += sz; // Pixel (faster than AddLine)
draw_list->AddRectFilledMultiColor(ImVec2(x, y), ImVec2(x + sz, y + sz), IM_COL32(0, 0, 0, 255), IM_COL32(255, 0, 0, 255), IM_COL32(255, 255, 0, 255), IM_COL32(0, 255, 0, 255));
ImGui::Dummy(ImVec2((sz + spacing) * 10.2f, (sz + spacing) * 3.0f));
ImGui::PopItemWidth();
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Canvas"))
{
static ImVector<ImVec2> points;
static ImVec2 scrolling(0.0f, 0.0f);
static bool opt_enable_grid = true;
static bool opt_enable_context_menu = true;
static bool adding_line = false;
ImGui::Checkbox("Enable grid", &opt_enable_grid);
ImGui::Checkbox("Enable context menu", &opt_enable_context_menu);
ImGui::Text("Mouse Left: drag to add lines,\nMouse Right: drag to scroll, click for context menu.");
// Typically you would use a BeginChild()/EndChild() pair to benefit from a clipping region + own scrolling.
// Here we demonstrate that this can be replaced by simple offsetting + custom drawing + PushClipRect/PopClipRect() calls.
// To use a child window instead we could use, e.g:
// ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0)); // Disable padding
// ImGui::PushStyleColor(ImGuiCol_ChildBg, IM_COL32(50, 50, 50, 255)); // Set a background color
// ImGui::BeginChild("canvas", ImVec2(0.0f, 0.0f), true, ImGuiWindowFlags_NoMove);
// ImGui::PopStyleColor();
// ImGui::PopStyleVar();
// [...]
// ImGui::EndChild();
// Using InvisibleButton() as a convenience 1) it will advance the layout cursor and 2) allows us to use IsItemHovered()/IsItemActive()
ImVec2 canvas_p0 = ImGui::GetCursorScreenPos(); // ImDrawList API uses screen coordinates!
ImVec2 canvas_sz = ImGui::GetContentRegionAvail(); // Resize canvas to what's available
if (canvas_sz.x < 50.0f) canvas_sz.x = 50.0f;
if (canvas_sz.y < 50.0f) canvas_sz.y = 50.0f;
ImVec2 canvas_p1 = ImVec2(canvas_p0.x + canvas_sz.x, canvas_p0.y + canvas_sz.y);
// Draw border and background color
ImGuiIO& io = ImGui::GetIO();
ImDrawList* draw_list = ImGui::GetWindowDrawList();
draw_list->AddRectFilled(canvas_p0, canvas_p1, IM_COL32(50, 50, 50, 255));
draw_list->AddRect(canvas_p0, canvas_p1, IM_COL32(255, 255, 255, 255));
// This will catch our interactions
ImGui::InvisibleButton("canvas", canvas_sz, ImGuiButtonFlags_MouseButtonLeft | ImGuiButtonFlags_MouseButtonRight);
const bool is_hovered = ImGui::IsItemHovered(); // Hovered
const bool is_active = ImGui::IsItemActive(); // Held
const ImVec2 origin(canvas_p0.x + scrolling.x, canvas_p0.y + scrolling.y); // Lock scrolled origin
const ImVec2 mouse_pos_in_canvas(io.MousePos.x - origin.x, io.MousePos.y - origin.y);
// Add first and second point
if (is_hovered && !adding_line && ImGui::IsMouseClicked(ImGuiMouseButton_Left))
{
points.push_back(mouse_pos_in_canvas);
points.push_back(mouse_pos_in_canvas);
adding_line = true;
}
if (adding_line)
{
points.back() = mouse_pos_in_canvas;
if (!ImGui::IsMouseDown(ImGuiMouseButton_Left))
adding_line = false;
}
// Pan (we use a zero mouse threshold when there's no context menu)
// You may decide to make that threshold dynamic based on whether the mouse is hovering something etc.
const float mouse_threshold_for_pan = opt_enable_context_menu ? -1.0f : 0.0f;
if (is_active && ImGui::IsMouseDragging(ImGuiMouseButton_Right, mouse_threshold_for_pan))
{
scrolling.x += io.MouseDelta.x;
scrolling.y += io.MouseDelta.y;
}
// Context menu (under default mouse threshold)
ImVec2 drag_delta = ImGui::GetMouseDragDelta(ImGuiMouseButton_Right);
if (opt_enable_context_menu && drag_delta.x == 0.0f && drag_delta.y == 0.0f)
ImGui::OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
if (ImGui::BeginPopup("context"))
{
if (adding_line)
points.resize(points.size() - 2);
adding_line = false;
if (ImGui::MenuItem("Remove one", NULL, false, points.Size > 0)) { points.resize(points.size() - 2); }
if (ImGui::MenuItem("Remove all", NULL, false, points.Size > 0)) { points.clear(); }
ImGui::EndPopup();
}
// Draw grid + all lines in the canvas
draw_list->PushClipRect(canvas_p0, canvas_p1, true);
if (opt_enable_grid)
{
const float GRID_STEP = 64.0f;
for (float x = fmodf(scrolling.x, GRID_STEP); x < canvas_sz.x; x += GRID_STEP)
draw_list->AddLine(ImVec2(canvas_p0.x + x, canvas_p0.y), ImVec2(canvas_p0.x + x, canvas_p1.y), IM_COL32(200, 200, 200, 40));
for (float y = fmodf(scrolling.y, GRID_STEP); y < canvas_sz.y; y += GRID_STEP)
draw_list->AddLine(ImVec2(canvas_p0.x, canvas_p0.y + y), ImVec2(canvas_p1.x, canvas_p0.y + y), IM_COL32(200, 200, 200, 40));
}
for (int n = 0; n < points.Size; n += 2)
draw_list->AddLine(ImVec2(origin.x + points[n].x, origin.y + points[n].y), ImVec2(origin.x + points[n + 1].x, origin.y + points[n + 1].y), IM_COL32(255, 255, 0, 255), 2.0f);
draw_list->PopClipRect();
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("BG/FG draw lists"))
{
static bool draw_bg = true;
static bool draw_fg = true;
ImGui::Checkbox("Draw in Background draw list", &draw_bg);
ImGui::SameLine(); HelpMarker("The Background draw list will be rendered below every Dear ImGui windows.");
ImGui::Checkbox("Draw in Foreground draw list", &draw_fg);
ImGui::SameLine(); HelpMarker("The Foreground draw list will be rendered over every Dear ImGui windows.");
ImVec2 window_pos = ImGui::GetWindowPos();
ImVec2 window_size = ImGui::GetWindowSize();
ImVec2 window_center = ImVec2(window_pos.x + window_size.x * 0.5f, window_pos.y + window_size.y * 0.5f);
if (draw_bg)
ImGui::GetBackgroundDrawList()->AddCircle(window_center, window_size.x * 0.6f, IM_COL32(255, 0, 0, 200), 0, 10 + 4);
if (draw_fg)
ImGui::GetForegroundDrawList()->AddCircle(window_center, window_size.y * 0.6f, IM_COL32(0, 255, 0, 200), 0, 10);
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Documents Handling / ShowExampleAppDocuments()
//-----------------------------------------------------------------------------
// Simplified structure to mimic a Document model
struct MyDocument
{
const char* Name; // Document title
bool Open; // Set when open (we keep an array of all available documents to simplify demo code!)
bool OpenPrev; // Copy of Open from last update.
bool Dirty; // Set when the document has been modified
bool WantClose; // Set when the document
ImVec4 Color; // An arbitrary variable associated to the document
MyDocument(const char* name, bool open = true, const ImVec4& color = ImVec4(1.0f, 1.0f, 1.0f, 1.0f))
{
Name = name;
Open = OpenPrev = open;
Dirty = false;
WantClose = false;
Color = color;
}
void DoOpen() { Open = true; }
void DoQueueClose() { WantClose = true; }
void DoForceClose() { Open = false; Dirty = false; }
void DoSave() { Dirty = false; }
// Display placeholder contents for the Document
static void DisplayContents(MyDocument* doc)
{
ImGui::PushID(doc);
ImGui::Text("Document \"%s\"", doc->Name);
ImGui::PushStyleColor(ImGuiCol_Text, doc->Color);
ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.");
ImGui::PopStyleColor();
if (ImGui::Button("Modify", ImVec2(100, 0)))
doc->Dirty = true;
ImGui::SameLine();
if (ImGui::Button("Save", ImVec2(100, 0)))
doc->DoSave();
ImGui::ColorEdit3("color", &doc->Color.x); // Useful to test drag and drop and hold-dragged-to-open-tab behavior.
ImGui::PopID();
}
// Display context menu for the Document
static void DisplayContextMenu(MyDocument* doc)
{
if (!ImGui::BeginPopupContextItem())
return;
char buf[256];
sprintf(buf, "Save %s", doc->Name);
if (ImGui::MenuItem(buf, "CTRL+S", false, doc->Open))
doc->DoSave();
if (ImGui::MenuItem("Close", "CTRL+W", false, doc->Open))
doc->DoQueueClose();
ImGui::EndPopup();
}
};
struct ExampleAppDocuments
{
ImVector<MyDocument> Documents;
ExampleAppDocuments()
{
Documents.push_back(MyDocument("Lettuce", true, ImVec4(0.4f, 0.8f, 0.4f, 1.0f)));
Documents.push_back(MyDocument("Eggplant", true, ImVec4(0.8f, 0.5f, 1.0f, 1.0f)));
Documents.push_back(MyDocument("Carrot", true, ImVec4(1.0f, 0.8f, 0.5f, 1.0f)));
Documents.push_back(MyDocument("Tomato", false, ImVec4(1.0f, 0.3f, 0.4f, 1.0f)));
Documents.push_back(MyDocument("A Rather Long Title", false));
Documents.push_back(MyDocument("Some Document", false));
}
};
// [Optional] Notify the system of Tabs/Windows closure that happened outside the regular tab interface.
// If a tab has been closed programmatically (aka closed from another source such as the Checkbox() in the demo,
// as opposed to clicking on the regular tab closing button) and stops being submitted, it will take a frame for
// the tab bar to notice its absence. During this frame there will be a gap in the tab bar, and if the tab that has
// disappeared was the selected one, the tab bar will report no selected tab during the frame. This will effectively
// give the impression of a flicker for one frame.
// We call SetTabItemClosed() to manually notify the Tab Bar or Docking system of removed tabs to avoid this glitch.
// Note that this completely optional, and only affect tab bars with the ImGuiTabBarFlags_Reorderable flag.
static void NotifyOfDocumentsClosedElsewhere(ExampleAppDocuments& app)
{
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
{
MyDocument* doc = &app.Documents[doc_n];
if (!doc->Open && doc->OpenPrev)
ImGui::SetTabItemClosed(doc->Name);
doc->OpenPrev = doc->Open;
}
}
void ShowExampleAppDocuments(bool* p_open)
{
static ExampleAppDocuments app;
// Options
static bool opt_reorderable = true;
static ImGuiTabBarFlags opt_fitting_flags = ImGuiTabBarFlags_FittingPolicyDefault_;
bool window_contents_visible = ImGui::Begin("Example: Documents", p_open, ImGuiWindowFlags_MenuBar);
if (!window_contents_visible)
{
ImGui::End();
return;
}
// Menu
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("File"))
{
int open_count = 0;
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
open_count += app.Documents[doc_n].Open ? 1 : 0;
if (ImGui::BeginMenu("Open", open_count < app.Documents.Size))
{
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
{
MyDocument* doc = &app.Documents[doc_n];
if (!doc->Open)
if (ImGui::MenuItem(doc->Name))
doc->DoOpen();
}
ImGui::EndMenu();
}
if (ImGui::MenuItem("Close All Documents", NULL, false, open_count > 0))
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
app.Documents[doc_n].DoQueueClose();
if (ImGui::MenuItem("Exit", "Ctrl+F4") && p_open)
*p_open = false;
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
// [Debug] List documents with one checkbox for each
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
{
MyDocument* doc = &app.Documents[doc_n];
if (doc_n > 0)
ImGui::SameLine();
ImGui::PushID(doc);
if (ImGui::Checkbox(doc->Name, &doc->Open))
if (!doc->Open)
doc->DoForceClose();
ImGui::PopID();
}
ImGui::Separator();
// About the ImGuiWindowFlags_UnsavedDocument / ImGuiTabItemFlags_UnsavedDocument flags.
// They have multiple effects:
// - Display a dot next to the title.
// - Tab is selected when clicking the X close button.
// - Closure is not assumed (will wait for user to stop submitting the tab).
// Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
// We need to assume closure by default otherwise waiting for "lack of submission" on the next frame would leave an empty
// hole for one-frame, both in the tab-bar and in tab-contents when closing a tab/window.
// The rarely used SetTabItemClosed() function is a way to notify of programmatic closure to avoid the one-frame hole.
// Submit Tab Bar and Tabs
{
ImGuiTabBarFlags tab_bar_flags = (opt_fitting_flags) | (opt_reorderable ? ImGuiTabBarFlags_Reorderable : 0);
if (ImGui::BeginTabBar("##tabs", tab_bar_flags))
{
if (opt_reorderable)
NotifyOfDocumentsClosedElsewhere(app);
// [DEBUG] Stress tests
//if ((ImGui::GetFrameCount() % 30) == 0) docs[1].Open ^= 1; // [DEBUG] Automatically show/hide a tab. Test various interactions e.g. dragging with this on.
//if (ImGui::GetIO().KeyCtrl) ImGui::SetTabItemSelected(docs[1].Name); // [DEBUG] Test SetTabItemSelected(), probably not very useful as-is anyway..
// Submit Tabs
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
{
MyDocument* doc = &app.Documents[doc_n];
if (!doc->Open)
continue;
ImGuiTabItemFlags tab_flags = (doc->Dirty ? ImGuiTabItemFlags_UnsavedDocument : 0);
bool visible = ImGui::BeginTabItem(doc->Name, &doc->Open, tab_flags);
// Cancel attempt to close when unsaved add to save queue so we can display a popup.
if (!doc->Open && doc->Dirty)
{
doc->Open = true;
doc->DoQueueClose();
}
MyDocument::DisplayContextMenu(doc);
if (visible)
{
MyDocument::DisplayContents(doc);
ImGui::EndTabItem();
}
}
ImGui::EndTabBar();
}
}
// Update closing queue
static ImVector<MyDocument*> close_queue;
if (close_queue.empty())
{
// Close queue is locked once we started a popup
for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
{
MyDocument* doc = &app.Documents[doc_n];
if (doc->WantClose)
{
doc->WantClose = false;
close_queue.push_back(doc);
}
}
}
// Display closing confirmation UI
if (!close_queue.empty())
{
int close_queue_unsaved_documents = 0;
for (int n = 0; n < close_queue.Size; n++)
if (close_queue[n]->Dirty)
close_queue_unsaved_documents++;
if (close_queue_unsaved_documents == 0)
{
// Close documents when all are unsaved
for (int n = 0; n < close_queue.Size; n++)
close_queue[n]->DoForceClose();
close_queue.clear();
}
else
{
if (!ImGui::IsPopupOpen("Save?"))
ImGui::OpenPopup("Save?");
if (ImGui::BeginPopupModal("Save?", NULL, ImGuiWindowFlags_AlwaysAutoResize))
{
ImGui::Text("Save change to the following items?");
float item_height = ImGui::GetTextLineHeightWithSpacing();
if (ImGui::BeginChildFrame(ImGui::GetID("frame"), ImVec2(-FLT_MIN, 6.25f * item_height)))
{
for (int n = 0; n < close_queue.Size; n++)
if (close_queue[n]->Dirty)
ImGui::Text("%s", close_queue[n]->Name);
ImGui::EndChildFrame();
}
ImVec2 button_size(ImGui::GetFontSize() * 7.0f, 0.0f);
if (ImGui::Button("Yes", button_size))
{
for (int n = 0; n < close_queue.Size; n++)
{
if (close_queue[n]->Dirty)
close_queue[n]->DoSave();
close_queue[n]->DoForceClose();
}
close_queue.clear();
ImGui::CloseCurrentPopup();
}
ImGui::SameLine();
if (ImGui::Button("No", button_size))
{
for (int n = 0; n < close_queue.Size; n++)
close_queue[n]->DoForceClose();
close_queue.clear();
ImGui::CloseCurrentPopup();
}
ImGui::SameLine();
if (ImGui::Button("Cancel", button_size))
{
close_queue.clear();
ImGui::CloseCurrentPopup();
}
ImGui::EndPopup();
}
}
}
ImGui::End();
}
// End of Demo code
#else
void ImGui::ShowAboutWindow(bool*) {}
void ImGui::ShowDemoWindow(bool*) {}
void ImGui::ShowUserGuide() {}
void ImGui::ShowStyleEditor(ImGuiStyle*) {}
#endif
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imconfig.h | //-----------------------------------------------------------------------------
// COMPILE-TIME OPTIONS FOR DEAR IMGUI
// Runtime options (clipboard callbacks, enabling various features, etc.) can generally be set via the ImGuiIO structure.
// You can use ImGui::SetAllocatorFunctions() before calling ImGui::CreateContext() to rewire memory allocation functions.
//-----------------------------------------------------------------------------
// A) You may edit imconfig.h (and not overwrite it when updating Dear ImGui, or maintain a patch/rebased branch with your modifications to it)
// B) or '#define IMGUI_USER_CONFIG "my_imgui_config.h"' in your project and then add directives in your own file without touching this template.
//-----------------------------------------------------------------------------
// You need to make sure that configuration settings are defined consistently _everywhere_ Dear ImGui is used, which include the imgui*.cpp
// files but also _any_ of your code that uses Dear ImGui. This is because some compile-time options have an affect on data structures.
// Defining those options in imconfig.h will ensure every compilation unit gets to see the same data structure layouts.
// Call IMGUI_CHECKVERSION() from your .cpp files to verify that the data structures your files are using are matching the ones imgui.cpp is using.
//-----------------------------------------------------------------------------
#pragma once
//---- Define assertion handler. Defaults to calling assert().
// If your macro uses multiple statements, make sure is enclosed in a 'do { .. } while (0)' block so it can be used as a single statement.
//#define IM_ASSERT(_EXPR) MyAssert(_EXPR)
//#define IM_ASSERT(_EXPR) ((void)(_EXPR)) // Disable asserts
//---- Define attributes of all API symbols declarations, e.g. for DLL under Windows
// Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
// DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
//#define IMGUI_API __declspec( dllexport )
//#define IMGUI_API __declspec( dllimport )
//---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to avoid using soon-to-be obsolete function/names.
#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
#define IMGUI_DISABLE_OBSOLETE_KEYIO // 1.87: disable legacy io.KeyMap[]+io.KeysDown[] in favor io.AddKeyEvent(). This will be folded into IMGUI_DISABLE_OBSOLETE_FUNCTIONS in a few versions.
//---- Disable all of Dear ImGui or don't implement standard windows/tools.
// It is very strongly recommended to NOT disable the demo windows and debug tool during development. They are extremely useful in day to day work. Please read comments in imgui_demo.cpp.
//#define IMGUI_DISABLE // Disable everything: all headers and source files will be empty.
//#define IMGUI_DISABLE_DEMO_WINDOWS // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty.
//#define IMGUI_DISABLE_DEBUG_TOOLS // Disable metrics/debugger and other debug tools: ShowMetricsWindow(), ShowDebugLogWindow() and ShowStackToolWindow() will be empty (this was called IMGUI_DISABLE_METRICS_WINDOW before 1.88).
//---- Don't implement some functions to reduce linkage requirements.
//#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc. (user32.lib/.a, kernel32.lib/.a)
//#define IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS // [Win32] [Default with Visual Studio] Implement default IME handler (require imm32.lib/.a, auto-link for Visual Studio, -limm32 on command-line for MinGW)
//#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS // [Win32] [Default with non-Visual Studio compilers] Don't implement default IME handler (won't require imm32.lib/.a)
//#define IMGUI_DISABLE_WIN32_FUNCTIONS // [Win32] Won't use and link with any Win32 function (clipboard, ime).
//#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS // [OSX] Implement default OSX clipboard handler (need to link with '-framework ApplicationServices', this is why this is not the default).
//#define IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS // Don't implement ImFormatString/ImFormatStringV so you can implement them yourself (e.g. if you don't want to link with vsnprintf)
//#define IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS // Don't implement ImFabs/ImSqrt/ImPow/ImFmod/ImCos/ImSin/ImAcos/ImAtan2 so you can implement them yourself.
//#define IMGUI_DISABLE_FILE_FUNCTIONS // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle at all (replace them with dummies)
//#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle so you can implement them yourself if you don't want to link with fopen/fclose/fread/fwrite. This will also disable the LogToTTY() function.
//#define IMGUI_DISABLE_DEFAULT_ALLOCATORS // Don't implement default allocators calling malloc()/free() to avoid linking with them. You will need to call ImGui::SetAllocatorFunctions().
//#define IMGUI_DISABLE_SSE // Disable use of SSE intrinsics even if available
//---- Include imgui_user.h at the end of imgui.h as a convenience
//#define IMGUI_INCLUDE_IMGUI_USER_H
//---- Pack colors to BGRA8 instead of RGBA8 (to avoid converting from one to another)
//#define IMGUI_USE_BGRA_PACKED_COLOR
//---- Use 32-bit for ImWchar (default is 16-bit) to support unicode planes 1-16. (e.g. point beyond 0xFFFF like emoticons, dingbats, symbols, shapes, ancient languages, etc...)
//#define IMGUI_USE_WCHAR32
//---- Avoid multiple STB libraries implementations, or redefine path/filenames to prioritize another version
// By default the embedded implementations are declared static and not available outside of Dear ImGui sources files.
//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
//#define IMGUI_STB_SPRINTF_FILENAME "my_folder/stb_sprintf.h" // only used if enabled
//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
//---- Use stb_sprintf.h for a faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
// Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by stb_sprintf.h.
//#define IMGUI_USE_STB_SPRINTF
//---- Use FreeType to build and rasterize the font atlas (instead of stb_truetype which is embedded by default in Dear ImGui)
// Requires FreeType headers to be available in the include path. Requires program to be compiled with 'misc/freetype/imgui_freetype.cpp' (in this repository) + the FreeType library (not provided).
// On Windows you may use vcpkg with 'vcpkg install freetype --triplet=x64-windows' + 'vcpkg integrate install'.
//#define IMGUI_ENABLE_FREETYPE
//---- Use stb_truetype to build and rasterize the font atlas (default)
// The only purpose of this define is if you want force compilation of the stb_truetype backend ALONG with the FreeType backend.
//#define IMGUI_ENABLE_STB_TRUETYPE
//---- Define constructor and implicit cast operators to convert back<>forth between your math types and ImVec2/ImVec4.
// This will be inlined as part of ImVec2 and ImVec4 class declarations.
/*
#define IM_VEC2_CLASS_EXTRA \
constexpr ImVec2(const MyVec2& f) : x(f.x), y(f.y) {} \
operator MyVec2() const { return MyVec2(x,y); }
#define IM_VEC4_CLASS_EXTRA \
constexpr ImVec4(const MyVec4& f) : x(f.x), y(f.y), z(f.z), w(f.w) {} \
operator MyVec4() const { return MyVec4(x,y,z,w); }
*/
//---- ...Or use Dear ImGui's own very basic math operators.
//#define IMGUI_DEFINE_MATH_OPERATORS
//---- Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
// Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
// Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
// Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
//#define ImDrawIdx unsigned int
//---- Override ImDrawCallback signature (will need to modify renderer backends accordingly)
//struct ImDrawList;
//struct ImDrawCmd;
//typedef void (*MyImDrawCallback)(const ImDrawList* draw_list, const ImDrawCmd* cmd, void* my_renderer_user_data);
//#define ImDrawCallback MyImDrawCallback
//---- Debug Tools: Macro to break in Debugger
// (use 'Metrics->Tools->Item Picker' to pick widgets with the mouse and break into them for easy debugging.)
//#define IM_DEBUG_BREAK IM_ASSERT(0)
//#define IM_DEBUG_BREAK __debugbreak()
//---- Debug Tools: Enable slower asserts
//#define IMGUI_DEBUG_PARANOID
//---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files.
/*
namespace ImGui
{
void MyFunction(const char* name, const MyMatrix44& v);
}
*/
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imstb_textedit.h | // [DEAR IMGUI]
// This is a slightly modified version of stb_textedit.h 1.14.
// Those changes would need to be pushed into nothings/stb:
// - Fix in stb_textedit_discard_redo (see https://github.com/nothings/stb/issues/321)
// - Fix in stb_textedit_find_charpos to handle last line (see https://github.com/ocornut/imgui/issues/6000)
// Grep for [DEAR IMGUI] to find the changes.
// stb_textedit.h - v1.14 - public domain - Sean Barrett
// Development of this library was sponsored by RAD Game Tools
//
// This C header file implements the guts of a multi-line text-editing
// widget; you implement display, word-wrapping, and low-level string
// insertion/deletion, and stb_textedit will map user inputs into
// insertions & deletions, plus updates to the cursor position,
// selection state, and undo state.
//
// It is intended for use in games and other systems that need to build
// their own custom widgets and which do not have heavy text-editing
// requirements (this library is not recommended for use for editing large
// texts, as its performance does not scale and it has limited undo).
//
// Non-trivial behaviors are modelled after Windows text controls.
//
//
// LICENSE
//
// See end of file for license information.
//
//
// DEPENDENCIES
//
// Uses the C runtime function 'memmove', which you can override
// by defining STB_TEXTEDIT_memmove before the implementation.
// Uses no other functions. Performs no runtime allocations.
//
//
// VERSION HISTORY
//
// 1.14 (2021-07-11) page up/down, various fixes
// 1.13 (2019-02-07) fix bug in undo size management
// 1.12 (2018-01-29) user can change STB_TEXTEDIT_KEYTYPE, fix redo to avoid crash
// 1.11 (2017-03-03) fix HOME on last line, dragging off single-line textfield
// 1.10 (2016-10-25) supress warnings about casting away const with -Wcast-qual
// 1.9 (2016-08-27) customizable move-by-word
// 1.8 (2016-04-02) better keyboard handling when mouse button is down
// 1.7 (2015-09-13) change y range handling in case baseline is non-0
// 1.6 (2015-04-15) allow STB_TEXTEDIT_memmove
// 1.5 (2014-09-10) add support for secondary keys for OS X
// 1.4 (2014-08-17) fix signed/unsigned warnings
// 1.3 (2014-06-19) fix mouse clicking to round to nearest char boundary
// 1.2 (2014-05-27) fix some RAD types that had crept into the new code
// 1.1 (2013-12-15) move-by-word (requires STB_TEXTEDIT_IS_SPACE )
// 1.0 (2012-07-26) improve documentation, initial public release
// 0.3 (2012-02-24) bugfixes, single-line mode; insert mode
// 0.2 (2011-11-28) fixes to undo/redo
// 0.1 (2010-07-08) initial version
//
// ADDITIONAL CONTRIBUTORS
//
// Ulf Winklemann: move-by-word in 1.1
// Fabian Giesen: secondary key inputs in 1.5
// Martins Mozeiko: STB_TEXTEDIT_memmove in 1.6
// Louis Schnellbach: page up/down in 1.14
//
// Bugfixes:
// Scott Graham
// Daniel Keller
// Omar Cornut
// Dan Thompson
//
// USAGE
//
// This file behaves differently depending on what symbols you define
// before including it.
//
//
// Header-file mode:
//
// If you do not define STB_TEXTEDIT_IMPLEMENTATION before including this,
// it will operate in "header file" mode. In this mode, it declares a
// single public symbol, STB_TexteditState, which encapsulates the current
// state of a text widget (except for the string, which you will store
// separately).
//
// To compile in this mode, you must define STB_TEXTEDIT_CHARTYPE to a
// primitive type that defines a single character (e.g. char, wchar_t, etc).
//
// To save space or increase undo-ability, you can optionally define the
// following things that are used by the undo system:
//
// STB_TEXTEDIT_POSITIONTYPE small int type encoding a valid cursor position
// STB_TEXTEDIT_UNDOSTATECOUNT the number of undo states to allow
// STB_TEXTEDIT_UNDOCHARCOUNT the number of characters to store in the undo buffer
//
// If you don't define these, they are set to permissive types and
// moderate sizes. The undo system does no memory allocations, so
// it grows STB_TexteditState by the worst-case storage which is (in bytes):
//
// [4 + 3 * sizeof(STB_TEXTEDIT_POSITIONTYPE)] * STB_TEXTEDIT_UNDOSTATECOUNT
// + sizeof(STB_TEXTEDIT_CHARTYPE) * STB_TEXTEDIT_UNDOCHARCOUNT
//
//
// Implementation mode:
//
// If you define STB_TEXTEDIT_IMPLEMENTATION before including this, it
// will compile the implementation of the text edit widget, depending
// on a large number of symbols which must be defined before the include.
//
// The implementation is defined only as static functions. You will then
// need to provide your own APIs in the same file which will access the
// static functions.
//
// The basic concept is that you provide a "string" object which
// behaves like an array of characters. stb_textedit uses indices to
// refer to positions in the string, implicitly representing positions
// in the displayed textedit. This is true for both plain text and
// rich text; even with rich text stb_truetype interacts with your
// code as if there was an array of all the displayed characters.
//
// Symbols that must be the same in header-file and implementation mode:
//
// STB_TEXTEDIT_CHARTYPE the character type
// STB_TEXTEDIT_POSITIONTYPE small type that is a valid cursor position
// STB_TEXTEDIT_UNDOSTATECOUNT the number of undo states to allow
// STB_TEXTEDIT_UNDOCHARCOUNT the number of characters to store in the undo buffer
//
// Symbols you must define for implementation mode:
//
// STB_TEXTEDIT_STRING the type of object representing a string being edited,
// typically this is a wrapper object with other data you need
//
// STB_TEXTEDIT_STRINGLEN(obj) the length of the string (ideally O(1))
// STB_TEXTEDIT_LAYOUTROW(&r,obj,n) returns the results of laying out a line of characters
// starting from character #n (see discussion below)
// STB_TEXTEDIT_GETWIDTH(obj,n,i) returns the pixel delta from the xpos of the i'th character
// to the xpos of the i+1'th char for a line of characters
// starting at character #n (i.e. accounts for kerning
// with previous char)
// STB_TEXTEDIT_KEYTOTEXT(k) maps a keyboard input to an insertable character
// (return type is int, -1 means not valid to insert)
// STB_TEXTEDIT_GETCHAR(obj,i) returns the i'th character of obj, 0-based
// STB_TEXTEDIT_NEWLINE the character returned by _GETCHAR() we recognize
// as manually wordwrapping for end-of-line positioning
//
// STB_TEXTEDIT_DELETECHARS(obj,i,n) delete n characters starting at i
// STB_TEXTEDIT_INSERTCHARS(obj,i,c*,n) insert n characters at i (pointed to by STB_TEXTEDIT_CHARTYPE*)
//
// STB_TEXTEDIT_K_SHIFT a power of two that is or'd in to a keyboard input to represent the shift key
//
// STB_TEXTEDIT_K_LEFT keyboard input to move cursor left
// STB_TEXTEDIT_K_RIGHT keyboard input to move cursor right
// STB_TEXTEDIT_K_UP keyboard input to move cursor up
// STB_TEXTEDIT_K_DOWN keyboard input to move cursor down
// STB_TEXTEDIT_K_PGUP keyboard input to move cursor up a page
// STB_TEXTEDIT_K_PGDOWN keyboard input to move cursor down a page
// STB_TEXTEDIT_K_LINESTART keyboard input to move cursor to start of line // e.g. HOME
// STB_TEXTEDIT_K_LINEEND keyboard input to move cursor to end of line // e.g. END
// STB_TEXTEDIT_K_TEXTSTART keyboard input to move cursor to start of text // e.g. ctrl-HOME
// STB_TEXTEDIT_K_TEXTEND keyboard input to move cursor to end of text // e.g. ctrl-END
// STB_TEXTEDIT_K_DELETE keyboard input to delete selection or character under cursor
// STB_TEXTEDIT_K_BACKSPACE keyboard input to delete selection or character left of cursor
// STB_TEXTEDIT_K_UNDO keyboard input to perform undo
// STB_TEXTEDIT_K_REDO keyboard input to perform redo
//
// Optional:
// STB_TEXTEDIT_K_INSERT keyboard input to toggle insert mode
// STB_TEXTEDIT_IS_SPACE(ch) true if character is whitespace (e.g. 'isspace'),
// required for default WORDLEFT/WORDRIGHT handlers
// STB_TEXTEDIT_MOVEWORDLEFT(obj,i) custom handler for WORDLEFT, returns index to move cursor to
// STB_TEXTEDIT_MOVEWORDRIGHT(obj,i) custom handler for WORDRIGHT, returns index to move cursor to
// STB_TEXTEDIT_K_WORDLEFT keyboard input to move cursor left one word // e.g. ctrl-LEFT
// STB_TEXTEDIT_K_WORDRIGHT keyboard input to move cursor right one word // e.g. ctrl-RIGHT
// STB_TEXTEDIT_K_LINESTART2 secondary keyboard input to move cursor to start of line
// STB_TEXTEDIT_K_LINEEND2 secondary keyboard input to move cursor to end of line
// STB_TEXTEDIT_K_TEXTSTART2 secondary keyboard input to move cursor to start of text
// STB_TEXTEDIT_K_TEXTEND2 secondary keyboard input to move cursor to end of text
//
// Keyboard input must be encoded as a single integer value; e.g. a character code
// and some bitflags that represent shift states. to simplify the interface, SHIFT must
// be a bitflag, so we can test the shifted state of cursor movements to allow selection,
// i.e. (STB_TEXTEDIT_K_RIGHT|STB_TEXTEDIT_K_SHIFT) should be shifted right-arrow.
//
// You can encode other things, such as CONTROL or ALT, in additional bits, and
// then test for their presence in e.g. STB_TEXTEDIT_K_WORDLEFT. For example,
// my Windows implementations add an additional CONTROL bit, and an additional KEYDOWN
// bit. Then all of the STB_TEXTEDIT_K_ values bitwise-or in the KEYDOWN bit,
// and I pass both WM_KEYDOWN and WM_CHAR events to the "key" function in the
// API below. The control keys will only match WM_KEYDOWN events because of the
// keydown bit I add, and STB_TEXTEDIT_KEYTOTEXT only tests for the KEYDOWN
// bit so it only decodes WM_CHAR events.
//
// STB_TEXTEDIT_LAYOUTROW returns information about the shape of one displayed
// row of characters assuming they start on the i'th character--the width and
// the height and the number of characters consumed. This allows this library
// to traverse the entire layout incrementally. You need to compute word-wrapping
// here.
//
// Each textfield keeps its own insert mode state, which is not how normal
// applications work. To keep an app-wide insert mode, update/copy the
// "insert_mode" field of STB_TexteditState before/after calling API functions.
//
// API
//
// void stb_textedit_initialize_state(STB_TexteditState *state, int is_single_line)
//
// void stb_textedit_click(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
// void stb_textedit_drag(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
// int stb_textedit_cut(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
// int stb_textedit_paste(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_CHARTYPE *text, int len)
// void stb_textedit_key(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXEDIT_KEYTYPE key)
//
// Each of these functions potentially updates the string and updates the
// state.
//
// initialize_state:
// set the textedit state to a known good default state when initially
// constructing the textedit.
//
// click:
// call this with the mouse x,y on a mouse down; it will update the cursor
// and reset the selection start/end to the cursor point. the x,y must
// be relative to the text widget, with (0,0) being the top left.
//
// drag:
// call this with the mouse x,y on a mouse drag/up; it will update the
// cursor and the selection end point
//
// cut:
// call this to delete the current selection; returns true if there was
// one. you should FIRST copy the current selection to the system paste buffer.
// (To copy, just copy the current selection out of the string yourself.)
//
// paste:
// call this to paste text at the current cursor point or over the current
// selection if there is one.
//
// key:
// call this for keyboard inputs sent to the textfield. you can use it
// for "key down" events or for "translated" key events. if you need to
// do both (as in Win32), or distinguish Unicode characters from control
// inputs, set a high bit to distinguish the two; then you can define the
// various definitions like STB_TEXTEDIT_K_LEFT have the is-key-event bit
// set, and make STB_TEXTEDIT_KEYTOCHAR check that the is-key-event bit is
// clear. STB_TEXTEDIT_KEYTYPE defaults to int, but you can #define it to
// anything other type you wante before including.
//
//
// When rendering, you can read the cursor position and selection state from
// the STB_TexteditState.
//
//
// Notes:
//
// This is designed to be usable in IMGUI, so it allows for the possibility of
// running in an IMGUI that has NOT cached the multi-line layout. For this
// reason, it provides an interface that is compatible with computing the
// layout incrementally--we try to make sure we make as few passes through
// as possible. (For example, to locate the mouse pointer in the text, we
// could define functions that return the X and Y positions of characters
// and binary search Y and then X, but if we're doing dynamic layout this
// will run the layout algorithm many times, so instead we manually search
// forward in one pass. Similar logic applies to e.g. up-arrow and
// down-arrow movement.)
//
// If it's run in a widget that *has* cached the layout, then this is less
// efficient, but it's not horrible on modern computers. But you wouldn't
// want to edit million-line files with it.
////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////
////
//// Header-file mode
////
////
#ifndef INCLUDE_STB_TEXTEDIT_H
#define INCLUDE_STB_TEXTEDIT_H
////////////////////////////////////////////////////////////////////////
//
// STB_TexteditState
//
// Definition of STB_TexteditState which you should store
// per-textfield; it includes cursor position, selection state,
// and undo state.
//
#ifndef STB_TEXTEDIT_UNDOSTATECOUNT
#define STB_TEXTEDIT_UNDOSTATECOUNT 99
#endif
#ifndef STB_TEXTEDIT_UNDOCHARCOUNT
#define STB_TEXTEDIT_UNDOCHARCOUNT 999
#endif
#ifndef STB_TEXTEDIT_CHARTYPE
#define STB_TEXTEDIT_CHARTYPE int
#endif
#ifndef STB_TEXTEDIT_POSITIONTYPE
#define STB_TEXTEDIT_POSITIONTYPE int
#endif
typedef struct
{
// private data
STB_TEXTEDIT_POSITIONTYPE where;
STB_TEXTEDIT_POSITIONTYPE insert_length;
STB_TEXTEDIT_POSITIONTYPE delete_length;
int char_storage;
} StbUndoRecord;
typedef struct
{
// private data
StbUndoRecord undo_rec [STB_TEXTEDIT_UNDOSTATECOUNT];
STB_TEXTEDIT_CHARTYPE undo_char[STB_TEXTEDIT_UNDOCHARCOUNT];
short undo_point, redo_point;
int undo_char_point, redo_char_point;
} StbUndoState;
typedef struct
{
/////////////////////
//
// public data
//
int cursor;
// position of the text cursor within the string
int select_start; // selection start point
int select_end;
// selection start and end point in characters; if equal, no selection.
// note that start may be less than or greater than end (e.g. when
// dragging the mouse, start is where the initial click was, and you
// can drag in either direction)
unsigned char insert_mode;
// each textfield keeps its own insert mode state. to keep an app-wide
// insert mode, copy this value in/out of the app state
int row_count_per_page;
// page size in number of row.
// this value MUST be set to >0 for pageup or pagedown in multilines documents.
/////////////////////
//
// private data
//
unsigned char cursor_at_end_of_line; // not implemented yet
unsigned char initialized;
unsigned char has_preferred_x;
unsigned char single_line;
unsigned char padding1, padding2, padding3;
float preferred_x; // this determines where the cursor up/down tries to seek to along x
StbUndoState undostate;
} STB_TexteditState;
////////////////////////////////////////////////////////////////////////
//
// StbTexteditRow
//
// Result of layout query, used by stb_textedit to determine where
// the text in each row is.
// result of layout query
typedef struct
{
float x0,x1; // starting x location, end x location (allows for align=right, etc)
float baseline_y_delta; // position of baseline relative to previous row's baseline
float ymin,ymax; // height of row above and below baseline
int num_chars;
} StbTexteditRow;
#endif //INCLUDE_STB_TEXTEDIT_H
////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////
////
//// Implementation mode
////
////
// implementation isn't include-guarded, since it might have indirectly
// included just the "header" portion
#ifdef STB_TEXTEDIT_IMPLEMENTATION
#ifndef STB_TEXTEDIT_memmove
#include <string.h>
#define STB_TEXTEDIT_memmove memmove
#endif
/////////////////////////////////////////////////////////////////////////////
//
// Mouse input handling
//
// traverse the layout to locate the nearest character to a display position
static int stb_text_locate_coord(STB_TEXTEDIT_STRING *str, float x, float y)
{
StbTexteditRow r;
int n = STB_TEXTEDIT_STRINGLEN(str);
float base_y = 0, prev_x;
int i=0, k;
r.x0 = r.x1 = 0;
r.ymin = r.ymax = 0;
r.num_chars = 0;
// search rows to find one that straddles 'y'
while (i < n) {
STB_TEXTEDIT_LAYOUTROW(&r, str, i);
if (r.num_chars <= 0)
return n;
if (i==0 && y < base_y + r.ymin)
return 0;
if (y < base_y + r.ymax)
break;
i += r.num_chars;
base_y += r.baseline_y_delta;
}
// below all text, return 'after' last character
if (i >= n)
return n;
// check if it's before the beginning of the line
if (x < r.x0)
return i;
// check if it's before the end of the line
if (x < r.x1) {
// search characters in row for one that straddles 'x'
prev_x = r.x0;
for (k=0; k < r.num_chars; ++k) {
float w = STB_TEXTEDIT_GETWIDTH(str, i, k);
if (x < prev_x+w) {
if (x < prev_x+w/2)
return k+i;
else
return k+i+1;
}
prev_x += w;
}
// shouldn't happen, but if it does, fall through to end-of-line case
}
// if the last character is a newline, return that. otherwise return 'after' the last character
if (STB_TEXTEDIT_GETCHAR(str, i+r.num_chars-1) == STB_TEXTEDIT_NEWLINE)
return i+r.num_chars-1;
else
return i+r.num_chars;
}
// API click: on mouse down, move the cursor to the clicked location, and reset the selection
static void stb_textedit_click(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
{
// In single-line mode, just always make y = 0. This lets the drag keep working if the mouse
// goes off the top or bottom of the text
if( state->single_line )
{
StbTexteditRow r;
STB_TEXTEDIT_LAYOUTROW(&r, str, 0);
y = r.ymin;
}
state->cursor = stb_text_locate_coord(str, x, y);
state->select_start = state->cursor;
state->select_end = state->cursor;
state->has_preferred_x = 0;
}
// API drag: on mouse drag, move the cursor and selection endpoint to the clicked location
static void stb_textedit_drag(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
{
int p = 0;
// In single-line mode, just always make y = 0. This lets the drag keep working if the mouse
// goes off the top or bottom of the text
if( state->single_line )
{
StbTexteditRow r;
STB_TEXTEDIT_LAYOUTROW(&r, str, 0);
y = r.ymin;
}
if (state->select_start == state->select_end)
state->select_start = state->cursor;
p = stb_text_locate_coord(str, x, y);
state->cursor = state->select_end = p;
}
/////////////////////////////////////////////////////////////////////////////
//
// Keyboard input handling
//
// forward declarations
static void stb_text_undo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state);
static void stb_text_redo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state);
static void stb_text_makeundo_delete(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int length);
static void stb_text_makeundo_insert(STB_TexteditState *state, int where, int length);
static void stb_text_makeundo_replace(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int old_length, int new_length);
typedef struct
{
float x,y; // position of n'th character
float height; // height of line
int first_char, length; // first char of row, and length
int prev_first; // first char of previous row
} StbFindState;
// find the x/y location of a character, and remember info about the previous row in
// case we get a move-up event (for page up, we'll have to rescan)
static void stb_textedit_find_charpos(StbFindState *find, STB_TEXTEDIT_STRING *str, int n, int single_line)
{
StbTexteditRow r;
int prev_start = 0;
int z = STB_TEXTEDIT_STRINGLEN(str);
int i=0, first;
if (n == z && single_line) {
// special case if it's at the end (may not be needed?)
STB_TEXTEDIT_LAYOUTROW(&r, str, 0);
find->y = 0;
find->first_char = 0;
find->length = z;
find->height = r.ymax - r.ymin;
find->x = r.x1;
return;
}
// search rows to find the one that straddles character n
find->y = 0;
for(;;) {
STB_TEXTEDIT_LAYOUTROW(&r, str, i);
if (n < i + r.num_chars)
break;
if (i + r.num_chars == z && z > 0 && STB_TEXTEDIT_GETCHAR(str, z - 1) != STB_TEXTEDIT_NEWLINE) // [DEAR IMGUI] special handling for last line
break; // [DEAR IMGUI]
prev_start = i;
i += r.num_chars;
find->y += r.baseline_y_delta;
if (i == z) // [DEAR IMGUI]
break; // [DEAR IMGUI]
}
find->first_char = first = i;
find->length = r.num_chars;
find->height = r.ymax - r.ymin;
find->prev_first = prev_start;
// now scan to find xpos
find->x = r.x0;
for (i=0; first+i < n; ++i)
find->x += STB_TEXTEDIT_GETWIDTH(str, first, i);
}
#define STB_TEXT_HAS_SELECTION(s) ((s)->select_start != (s)->select_end)
// make the selection/cursor state valid if client altered the string
static void stb_textedit_clamp(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
{
int n = STB_TEXTEDIT_STRINGLEN(str);
if (STB_TEXT_HAS_SELECTION(state)) {
if (state->select_start > n) state->select_start = n;
if (state->select_end > n) state->select_end = n;
// if clamping forced them to be equal, move the cursor to match
if (state->select_start == state->select_end)
state->cursor = state->select_start;
}
if (state->cursor > n) state->cursor = n;
}
// delete characters while updating undo
static void stb_textedit_delete(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int len)
{
stb_text_makeundo_delete(str, state, where, len);
STB_TEXTEDIT_DELETECHARS(str, where, len);
state->has_preferred_x = 0;
}
// delete the section
static void stb_textedit_delete_selection(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
{
stb_textedit_clamp(str, state);
if (STB_TEXT_HAS_SELECTION(state)) {
if (state->select_start < state->select_end) {
stb_textedit_delete(str, state, state->select_start, state->select_end - state->select_start);
state->select_end = state->cursor = state->select_start;
} else {
stb_textedit_delete(str, state, state->select_end, state->select_start - state->select_end);
state->select_start = state->cursor = state->select_end;
}
state->has_preferred_x = 0;
}
}
// canoncialize the selection so start <= end
static void stb_textedit_sortselection(STB_TexteditState *state)
{
if (state->select_end < state->select_start) {
int temp = state->select_end;
state->select_end = state->select_start;
state->select_start = temp;
}
}
// move cursor to first character of selection
static void stb_textedit_move_to_first(STB_TexteditState *state)
{
if (STB_TEXT_HAS_SELECTION(state)) {
stb_textedit_sortselection(state);
state->cursor = state->select_start;
state->select_end = state->select_start;
state->has_preferred_x = 0;
}
}
// move cursor to last character of selection
static void stb_textedit_move_to_last(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
{
if (STB_TEXT_HAS_SELECTION(state)) {
stb_textedit_sortselection(state);
stb_textedit_clamp(str, state);
state->cursor = state->select_end;
state->select_start = state->select_end;
state->has_preferred_x = 0;
}
}
#ifdef STB_TEXTEDIT_IS_SPACE
static int is_word_boundary( STB_TEXTEDIT_STRING *str, int idx )
{
return idx > 0 ? (STB_TEXTEDIT_IS_SPACE( STB_TEXTEDIT_GETCHAR(str,idx-1) ) && !STB_TEXTEDIT_IS_SPACE( STB_TEXTEDIT_GETCHAR(str, idx) ) ) : 1;
}
#ifndef STB_TEXTEDIT_MOVEWORDLEFT
static int stb_textedit_move_to_word_previous( STB_TEXTEDIT_STRING *str, int c )
{
--c; // always move at least one character
while( c >= 0 && !is_word_boundary( str, c ) )
--c;
if( c < 0 )
c = 0;
return c;
}
#define STB_TEXTEDIT_MOVEWORDLEFT stb_textedit_move_to_word_previous
#endif
#ifndef STB_TEXTEDIT_MOVEWORDRIGHT
static int stb_textedit_move_to_word_next( STB_TEXTEDIT_STRING *str, int c )
{
const int len = STB_TEXTEDIT_STRINGLEN(str);
++c; // always move at least one character
while( c < len && !is_word_boundary( str, c ) )
++c;
if( c > len )
c = len;
return c;
}
#define STB_TEXTEDIT_MOVEWORDRIGHT stb_textedit_move_to_word_next
#endif
#endif
// update selection and cursor to match each other
static void stb_textedit_prep_selection_at_cursor(STB_TexteditState *state)
{
if (!STB_TEXT_HAS_SELECTION(state))
state->select_start = state->select_end = state->cursor;
else
state->cursor = state->select_end;
}
// API cut: delete selection
static int stb_textedit_cut(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
{
if (STB_TEXT_HAS_SELECTION(state)) {
stb_textedit_delete_selection(str,state); // implicitly clamps
state->has_preferred_x = 0;
return 1;
}
return 0;
}
// API paste: replace existing selection with passed-in text
static int stb_textedit_paste_internal(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_CHARTYPE *text, int len)
{
// if there's a selection, the paste should delete it
stb_textedit_clamp(str, state);
stb_textedit_delete_selection(str,state);
// try to insert the characters
if (STB_TEXTEDIT_INSERTCHARS(str, state->cursor, text, len)) {
stb_text_makeundo_insert(state, state->cursor, len);
state->cursor += len;
state->has_preferred_x = 0;
return 1;
}
// note: paste failure will leave deleted selection, may be restored with an undo (see https://github.com/nothings/stb/issues/734 for details)
return 0;
}
#ifndef STB_TEXTEDIT_KEYTYPE
#define STB_TEXTEDIT_KEYTYPE int
#endif
// API key: process a keyboard input
static void stb_textedit_key(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_KEYTYPE key)
{
retry:
switch (key) {
default: {
int c = STB_TEXTEDIT_KEYTOTEXT(key);
if (c > 0) {
STB_TEXTEDIT_CHARTYPE ch = (STB_TEXTEDIT_CHARTYPE) c;
// can't add newline in single-line mode
if (c == '\n' && state->single_line)
break;
if (state->insert_mode && !STB_TEXT_HAS_SELECTION(state) && state->cursor < STB_TEXTEDIT_STRINGLEN(str)) {
stb_text_makeundo_replace(str, state, state->cursor, 1, 1);
STB_TEXTEDIT_DELETECHARS(str, state->cursor, 1);
if (STB_TEXTEDIT_INSERTCHARS(str, state->cursor, &ch, 1)) {
++state->cursor;
state->has_preferred_x = 0;
}
} else {
stb_textedit_delete_selection(str,state); // implicitly clamps
if (STB_TEXTEDIT_INSERTCHARS(str, state->cursor, &ch, 1)) {
stb_text_makeundo_insert(state, state->cursor, 1);
++state->cursor;
state->has_preferred_x = 0;
}
}
}
break;
}
#ifdef STB_TEXTEDIT_K_INSERT
case STB_TEXTEDIT_K_INSERT:
state->insert_mode = !state->insert_mode;
break;
#endif
case STB_TEXTEDIT_K_UNDO:
stb_text_undo(str, state);
state->has_preferred_x = 0;
break;
case STB_TEXTEDIT_K_REDO:
stb_text_redo(str, state);
state->has_preferred_x = 0;
break;
case STB_TEXTEDIT_K_LEFT:
// if currently there's a selection, move cursor to start of selection
if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_move_to_first(state);
else
if (state->cursor > 0)
--state->cursor;
state->has_preferred_x = 0;
break;
case STB_TEXTEDIT_K_RIGHT:
// if currently there's a selection, move cursor to end of selection
if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_move_to_last(str, state);
else
++state->cursor;
stb_textedit_clamp(str, state);
state->has_preferred_x = 0;
break;
case STB_TEXTEDIT_K_LEFT | STB_TEXTEDIT_K_SHIFT:
stb_textedit_clamp(str, state);
stb_textedit_prep_selection_at_cursor(state);
// move selection left
if (state->select_end > 0)
--state->select_end;
state->cursor = state->select_end;
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_MOVEWORDLEFT
case STB_TEXTEDIT_K_WORDLEFT:
if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_move_to_first(state);
else {
state->cursor = STB_TEXTEDIT_MOVEWORDLEFT(str, state->cursor);
stb_textedit_clamp( str, state );
}
break;
case STB_TEXTEDIT_K_WORDLEFT | STB_TEXTEDIT_K_SHIFT:
if( !STB_TEXT_HAS_SELECTION( state ) )
stb_textedit_prep_selection_at_cursor(state);
state->cursor = STB_TEXTEDIT_MOVEWORDLEFT(str, state->cursor);
state->select_end = state->cursor;
stb_textedit_clamp( str, state );
break;
#endif
#ifdef STB_TEXTEDIT_MOVEWORDRIGHT
case STB_TEXTEDIT_K_WORDRIGHT:
if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_move_to_last(str, state);
else {
state->cursor = STB_TEXTEDIT_MOVEWORDRIGHT(str, state->cursor);
stb_textedit_clamp( str, state );
}
break;
case STB_TEXTEDIT_K_WORDRIGHT | STB_TEXTEDIT_K_SHIFT:
if( !STB_TEXT_HAS_SELECTION( state ) )
stb_textedit_prep_selection_at_cursor(state);
state->cursor = STB_TEXTEDIT_MOVEWORDRIGHT(str, state->cursor);
state->select_end = state->cursor;
stb_textedit_clamp( str, state );
break;
#endif
case STB_TEXTEDIT_K_RIGHT | STB_TEXTEDIT_K_SHIFT:
stb_textedit_prep_selection_at_cursor(state);
// move selection right
++state->select_end;
stb_textedit_clamp(str, state);
state->cursor = state->select_end;
state->has_preferred_x = 0;
break;
case STB_TEXTEDIT_K_DOWN:
case STB_TEXTEDIT_K_DOWN | STB_TEXTEDIT_K_SHIFT:
case STB_TEXTEDIT_K_PGDOWN:
case STB_TEXTEDIT_K_PGDOWN | STB_TEXTEDIT_K_SHIFT: {
StbFindState find;
StbTexteditRow row;
int i, j, sel = (key & STB_TEXTEDIT_K_SHIFT) != 0;
int is_page = (key & ~STB_TEXTEDIT_K_SHIFT) == STB_TEXTEDIT_K_PGDOWN;
int row_count = is_page ? state->row_count_per_page : 1;
if (!is_page && state->single_line) {
// on windows, up&down in single-line behave like left&right
key = STB_TEXTEDIT_K_RIGHT | (key & STB_TEXTEDIT_K_SHIFT);
goto retry;
}
if (sel)
stb_textedit_prep_selection_at_cursor(state);
else if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_move_to_last(str, state);
// compute current position of cursor point
stb_textedit_clamp(str, state);
stb_textedit_find_charpos(&find, str, state->cursor, state->single_line);
for (j = 0; j < row_count; ++j) {
float x, goal_x = state->has_preferred_x ? state->preferred_x : find.x;
int start = find.first_char + find.length;
if (find.length == 0)
break;
// [DEAR IMGUI]
// going down while being on the last line shouldn't bring us to that line end
if (STB_TEXTEDIT_GETCHAR(str, find.first_char + find.length - 1) != STB_TEXTEDIT_NEWLINE)
break;
// now find character position down a row
state->cursor = start;
STB_TEXTEDIT_LAYOUTROW(&row, str, state->cursor);
x = row.x0;
for (i=0; i < row.num_chars; ++i) {
float dx = STB_TEXTEDIT_GETWIDTH(str, start, i);
#ifdef STB_TEXTEDIT_GETWIDTH_NEWLINE
if (dx == STB_TEXTEDIT_GETWIDTH_NEWLINE)
break;
#endif
x += dx;
if (x > goal_x)
break;
++state->cursor;
}
stb_textedit_clamp(str, state);
state->has_preferred_x = 1;
state->preferred_x = goal_x;
if (sel)
state->select_end = state->cursor;
// go to next line
find.first_char = find.first_char + find.length;
find.length = row.num_chars;
}
break;
}
case STB_TEXTEDIT_K_UP:
case STB_TEXTEDIT_K_UP | STB_TEXTEDIT_K_SHIFT:
case STB_TEXTEDIT_K_PGUP:
case STB_TEXTEDIT_K_PGUP | STB_TEXTEDIT_K_SHIFT: {
StbFindState find;
StbTexteditRow row;
int i, j, prev_scan, sel = (key & STB_TEXTEDIT_K_SHIFT) != 0;
int is_page = (key & ~STB_TEXTEDIT_K_SHIFT) == STB_TEXTEDIT_K_PGUP;
int row_count = is_page ? state->row_count_per_page : 1;
if (!is_page && state->single_line) {
// on windows, up&down become left&right
key = STB_TEXTEDIT_K_LEFT | (key & STB_TEXTEDIT_K_SHIFT);
goto retry;
}
if (sel)
stb_textedit_prep_selection_at_cursor(state);
else if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_move_to_first(state);
// compute current position of cursor point
stb_textedit_clamp(str, state);
stb_textedit_find_charpos(&find, str, state->cursor, state->single_line);
for (j = 0; j < row_count; ++j) {
float x, goal_x = state->has_preferred_x ? state->preferred_x : find.x;
// can only go up if there's a previous row
if (find.prev_first == find.first_char)
break;
// now find character position up a row
state->cursor = find.prev_first;
STB_TEXTEDIT_LAYOUTROW(&row, str, state->cursor);
x = row.x0;
for (i=0; i < row.num_chars; ++i) {
float dx = STB_TEXTEDIT_GETWIDTH(str, find.prev_first, i);
#ifdef STB_TEXTEDIT_GETWIDTH_NEWLINE
if (dx == STB_TEXTEDIT_GETWIDTH_NEWLINE)
break;
#endif
x += dx;
if (x > goal_x)
break;
++state->cursor;
}
stb_textedit_clamp(str, state);
state->has_preferred_x = 1;
state->preferred_x = goal_x;
if (sel)
state->select_end = state->cursor;
// go to previous line
// (we need to scan previous line the hard way. maybe we could expose this as a new API function?)
prev_scan = find.prev_first > 0 ? find.prev_first - 1 : 0;
while (prev_scan > 0 && STB_TEXTEDIT_GETCHAR(str, prev_scan - 1) != STB_TEXTEDIT_NEWLINE)
--prev_scan;
find.first_char = find.prev_first;
find.prev_first = prev_scan;
}
break;
}
case STB_TEXTEDIT_K_DELETE:
case STB_TEXTEDIT_K_DELETE | STB_TEXTEDIT_K_SHIFT:
if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_delete_selection(str, state);
else {
int n = STB_TEXTEDIT_STRINGLEN(str);
if (state->cursor < n)
stb_textedit_delete(str, state, state->cursor, 1);
}
state->has_preferred_x = 0;
break;
case STB_TEXTEDIT_K_BACKSPACE:
case STB_TEXTEDIT_K_BACKSPACE | STB_TEXTEDIT_K_SHIFT:
if (STB_TEXT_HAS_SELECTION(state))
stb_textedit_delete_selection(str, state);
else {
stb_textedit_clamp(str, state);
if (state->cursor > 0) {
stb_textedit_delete(str, state, state->cursor-1, 1);
--state->cursor;
}
}
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_TEXTSTART2
case STB_TEXTEDIT_K_TEXTSTART2:
#endif
case STB_TEXTEDIT_K_TEXTSTART:
state->cursor = state->select_start = state->select_end = 0;
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_TEXTEND2
case STB_TEXTEDIT_K_TEXTEND2:
#endif
case STB_TEXTEDIT_K_TEXTEND:
state->cursor = STB_TEXTEDIT_STRINGLEN(str);
state->select_start = state->select_end = 0;
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_TEXTSTART2
case STB_TEXTEDIT_K_TEXTSTART2 | STB_TEXTEDIT_K_SHIFT:
#endif
case STB_TEXTEDIT_K_TEXTSTART | STB_TEXTEDIT_K_SHIFT:
stb_textedit_prep_selection_at_cursor(state);
state->cursor = state->select_end = 0;
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_TEXTEND2
case STB_TEXTEDIT_K_TEXTEND2 | STB_TEXTEDIT_K_SHIFT:
#endif
case STB_TEXTEDIT_K_TEXTEND | STB_TEXTEDIT_K_SHIFT:
stb_textedit_prep_selection_at_cursor(state);
state->cursor = state->select_end = STB_TEXTEDIT_STRINGLEN(str);
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_LINESTART2
case STB_TEXTEDIT_K_LINESTART2:
#endif
case STB_TEXTEDIT_K_LINESTART:
stb_textedit_clamp(str, state);
stb_textedit_move_to_first(state);
if (state->single_line)
state->cursor = 0;
else while (state->cursor > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) != STB_TEXTEDIT_NEWLINE)
--state->cursor;
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_LINEEND2
case STB_TEXTEDIT_K_LINEEND2:
#endif
case STB_TEXTEDIT_K_LINEEND: {
int n = STB_TEXTEDIT_STRINGLEN(str);
stb_textedit_clamp(str, state);
stb_textedit_move_to_first(state);
if (state->single_line)
state->cursor = n;
else while (state->cursor < n && STB_TEXTEDIT_GETCHAR(str, state->cursor) != STB_TEXTEDIT_NEWLINE)
++state->cursor;
state->has_preferred_x = 0;
break;
}
#ifdef STB_TEXTEDIT_K_LINESTART2
case STB_TEXTEDIT_K_LINESTART2 | STB_TEXTEDIT_K_SHIFT:
#endif
case STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_SHIFT:
stb_textedit_clamp(str, state);
stb_textedit_prep_selection_at_cursor(state);
if (state->single_line)
state->cursor = 0;
else while (state->cursor > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) != STB_TEXTEDIT_NEWLINE)
--state->cursor;
state->select_end = state->cursor;
state->has_preferred_x = 0;
break;
#ifdef STB_TEXTEDIT_K_LINEEND2
case STB_TEXTEDIT_K_LINEEND2 | STB_TEXTEDIT_K_SHIFT:
#endif
case STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_SHIFT: {
int n = STB_TEXTEDIT_STRINGLEN(str);
stb_textedit_clamp(str, state);
stb_textedit_prep_selection_at_cursor(state);
if (state->single_line)
state->cursor = n;
else while (state->cursor < n && STB_TEXTEDIT_GETCHAR(str, state->cursor) != STB_TEXTEDIT_NEWLINE)
++state->cursor;
state->select_end = state->cursor;
state->has_preferred_x = 0;
break;
}
}
}
/////////////////////////////////////////////////////////////////////////////
//
// Undo processing
//
// @OPTIMIZE: the undo/redo buffer should be circular
static void stb_textedit_flush_redo(StbUndoState *state)
{
state->redo_point = STB_TEXTEDIT_UNDOSTATECOUNT;
state->redo_char_point = STB_TEXTEDIT_UNDOCHARCOUNT;
}
// discard the oldest entry in the undo list
static void stb_textedit_discard_undo(StbUndoState *state)
{
if (state->undo_point > 0) {
// if the 0th undo state has characters, clean those up
if (state->undo_rec[0].char_storage >= 0) {
int n = state->undo_rec[0].insert_length, i;
// delete n characters from all other records
state->undo_char_point -= n;
STB_TEXTEDIT_memmove(state->undo_char, state->undo_char + n, (size_t) (state->undo_char_point*sizeof(STB_TEXTEDIT_CHARTYPE)));
for (i=0; i < state->undo_point; ++i)
if (state->undo_rec[i].char_storage >= 0)
state->undo_rec[i].char_storage -= n; // @OPTIMIZE: get rid of char_storage and infer it
}
--state->undo_point;
STB_TEXTEDIT_memmove(state->undo_rec, state->undo_rec+1, (size_t) (state->undo_point*sizeof(state->undo_rec[0])));
}
}
// discard the oldest entry in the redo list--it's bad if this
// ever happens, but because undo & redo have to store the actual
// characters in different cases, the redo character buffer can
// fill up even though the undo buffer didn't
static void stb_textedit_discard_redo(StbUndoState *state)
{
int k = STB_TEXTEDIT_UNDOSTATECOUNT-1;
if (state->redo_point <= k) {
// if the k'th undo state has characters, clean those up
if (state->undo_rec[k].char_storage >= 0) {
int n = state->undo_rec[k].insert_length, i;
// move the remaining redo character data to the end of the buffer
state->redo_char_point += n;
STB_TEXTEDIT_memmove(state->undo_char + state->redo_char_point, state->undo_char + state->redo_char_point-n, (size_t) ((STB_TEXTEDIT_UNDOCHARCOUNT - state->redo_char_point)*sizeof(STB_TEXTEDIT_CHARTYPE)));
// adjust the position of all the other records to account for above memmove
for (i=state->redo_point; i < k; ++i)
if (state->undo_rec[i].char_storage >= 0)
state->undo_rec[i].char_storage += n;
}
// now move all the redo records towards the end of the buffer; the first one is at 'redo_point'
// [DEAR IMGUI]
size_t move_size = (size_t)((STB_TEXTEDIT_UNDOSTATECOUNT - state->redo_point - 1) * sizeof(state->undo_rec[0]));
const char* buf_begin = (char*)state->undo_rec; (void)buf_begin;
const char* buf_end = (char*)state->undo_rec + sizeof(state->undo_rec); (void)buf_end;
IM_ASSERT(((char*)(state->undo_rec + state->redo_point)) >= buf_begin);
IM_ASSERT(((char*)(state->undo_rec + state->redo_point + 1) + move_size) <= buf_end);
STB_TEXTEDIT_memmove(state->undo_rec + state->redo_point+1, state->undo_rec + state->redo_point, move_size);
// now move redo_point to point to the new one
++state->redo_point;
}
}
static StbUndoRecord *stb_text_create_undo_record(StbUndoState *state, int numchars)
{
// any time we create a new undo record, we discard redo
stb_textedit_flush_redo(state);
// if we have no free records, we have to make room, by sliding the
// existing records down
if (state->undo_point == STB_TEXTEDIT_UNDOSTATECOUNT)
stb_textedit_discard_undo(state);
// if the characters to store won't possibly fit in the buffer, we can't undo
if (numchars > STB_TEXTEDIT_UNDOCHARCOUNT) {
state->undo_point = 0;
state->undo_char_point = 0;
return NULL;
}
// if we don't have enough free characters in the buffer, we have to make room
while (state->undo_char_point + numchars > STB_TEXTEDIT_UNDOCHARCOUNT)
stb_textedit_discard_undo(state);
return &state->undo_rec[state->undo_point++];
}
static STB_TEXTEDIT_CHARTYPE *stb_text_createundo(StbUndoState *state, int pos, int insert_len, int delete_len)
{
StbUndoRecord *r = stb_text_create_undo_record(state, insert_len);
if (r == NULL)
return NULL;
r->where = pos;
r->insert_length = (STB_TEXTEDIT_POSITIONTYPE) insert_len;
r->delete_length = (STB_TEXTEDIT_POSITIONTYPE) delete_len;
if (insert_len == 0) {
r->char_storage = -1;
return NULL;
} else {
r->char_storage = state->undo_char_point;
state->undo_char_point += insert_len;
return &state->undo_char[r->char_storage];
}
}
static void stb_text_undo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
{
StbUndoState *s = &state->undostate;
StbUndoRecord u, *r;
if (s->undo_point == 0)
return;
// we need to do two things: apply the undo record, and create a redo record
u = s->undo_rec[s->undo_point-1];
r = &s->undo_rec[s->redo_point-1];
r->char_storage = -1;
r->insert_length = u.delete_length;
r->delete_length = u.insert_length;
r->where = u.where;
if (u.delete_length) {
// if the undo record says to delete characters, then the redo record will
// need to re-insert the characters that get deleted, so we need to store
// them.
// there are three cases:
// there's enough room to store the characters
// characters stored for *redoing* don't leave room for redo
// characters stored for *undoing* don't leave room for redo
// if the last is true, we have to bail
if (s->undo_char_point + u.delete_length >= STB_TEXTEDIT_UNDOCHARCOUNT) {
// the undo records take up too much character space; there's no space to store the redo characters
r->insert_length = 0;
} else {
int i;
// there's definitely room to store the characters eventually
while (s->undo_char_point + u.delete_length > s->redo_char_point) {
// should never happen:
if (s->redo_point == STB_TEXTEDIT_UNDOSTATECOUNT)
return;
// there's currently not enough room, so discard a redo record
stb_textedit_discard_redo(s);
}
r = &s->undo_rec[s->redo_point-1];
r->char_storage = s->redo_char_point - u.delete_length;
s->redo_char_point = s->redo_char_point - u.delete_length;
// now save the characters
for (i=0; i < u.delete_length; ++i)
s->undo_char[r->char_storage + i] = STB_TEXTEDIT_GETCHAR(str, u.where + i);
}
// now we can carry out the deletion
STB_TEXTEDIT_DELETECHARS(str, u.where, u.delete_length);
}
// check type of recorded action:
if (u.insert_length) {
// easy case: was a deletion, so we need to insert n characters
STB_TEXTEDIT_INSERTCHARS(str, u.where, &s->undo_char[u.char_storage], u.insert_length);
s->undo_char_point -= u.insert_length;
}
state->cursor = u.where + u.insert_length;
s->undo_point--;
s->redo_point--;
}
static void stb_text_redo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
{
StbUndoState *s = &state->undostate;
StbUndoRecord *u, r;
if (s->redo_point == STB_TEXTEDIT_UNDOSTATECOUNT)
return;
// we need to do two things: apply the redo record, and create an undo record
u = &s->undo_rec[s->undo_point];
r = s->undo_rec[s->redo_point];
// we KNOW there must be room for the undo record, because the redo record
// was derived from an undo record
u->delete_length = r.insert_length;
u->insert_length = r.delete_length;
u->where = r.where;
u->char_storage = -1;
if (r.delete_length) {
// the redo record requires us to delete characters, so the undo record
// needs to store the characters
if (s->undo_char_point + u->insert_length > s->redo_char_point) {
u->insert_length = 0;
u->delete_length = 0;
} else {
int i;
u->char_storage = s->undo_char_point;
s->undo_char_point = s->undo_char_point + u->insert_length;
// now save the characters
for (i=0; i < u->insert_length; ++i)
s->undo_char[u->char_storage + i] = STB_TEXTEDIT_GETCHAR(str, u->where + i);
}
STB_TEXTEDIT_DELETECHARS(str, r.where, r.delete_length);
}
if (r.insert_length) {
// easy case: need to insert n characters
STB_TEXTEDIT_INSERTCHARS(str, r.where, &s->undo_char[r.char_storage], r.insert_length);
s->redo_char_point += r.insert_length;
}
state->cursor = r.where + r.insert_length;
s->undo_point++;
s->redo_point++;
}
static void stb_text_makeundo_insert(STB_TexteditState *state, int where, int length)
{
stb_text_createundo(&state->undostate, where, 0, length);
}
static void stb_text_makeundo_delete(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int length)
{
int i;
STB_TEXTEDIT_CHARTYPE *p = stb_text_createundo(&state->undostate, where, length, 0);
if (p) {
for (i=0; i < length; ++i)
p[i] = STB_TEXTEDIT_GETCHAR(str, where+i);
}
}
static void stb_text_makeundo_replace(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int old_length, int new_length)
{
int i;
STB_TEXTEDIT_CHARTYPE *p = stb_text_createundo(&state->undostate, where, old_length, new_length);
if (p) {
for (i=0; i < old_length; ++i)
p[i] = STB_TEXTEDIT_GETCHAR(str, where+i);
}
}
// reset the state to default
static void stb_textedit_clear_state(STB_TexteditState *state, int is_single_line)
{
state->undostate.undo_point = 0;
state->undostate.undo_char_point = 0;
state->undostate.redo_point = STB_TEXTEDIT_UNDOSTATECOUNT;
state->undostate.redo_char_point = STB_TEXTEDIT_UNDOCHARCOUNT;
state->select_end = state->select_start = 0;
state->cursor = 0;
state->has_preferred_x = 0;
state->preferred_x = 0;
state->cursor_at_end_of_line = 0;
state->initialized = 1;
state->single_line = (unsigned char) is_single_line;
state->insert_mode = 0;
state->row_count_per_page = 0;
}
// API initialize
static void stb_textedit_initialize_state(STB_TexteditState *state, int is_single_line)
{
stb_textedit_clear_state(state, is_single_line);
}
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif
static int stb_textedit_paste(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_CHARTYPE const *ctext, int len)
{
return stb_textedit_paste_internal(str, state, (STB_TEXTEDIT_CHARTYPE *) ctext, len);
}
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
#endif//STB_TEXTEDIT_IMPLEMENTATION
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/LICENSE.txt | The MIT License (MIT)
Copyright (c) 2014-2023 Omar Cornut
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imstb_rectpack.h | // [DEAR IMGUI]
// This is a slightly modified version of stb_rect_pack.h 1.01.
// Grep for [DEAR IMGUI] to find the changes.
//
// stb_rect_pack.h - v1.01 - public domain - rectangle packing
// Sean Barrett 2014
//
// Useful for e.g. packing rectangular textures into an atlas.
// Does not do rotation.
//
// Before #including,
//
// #define STB_RECT_PACK_IMPLEMENTATION
//
// in the file that you want to have the implementation.
//
// Not necessarily the awesomest packing method, but better than
// the totally naive one in stb_truetype (which is primarily what
// this is meant to replace).
//
// Has only had a few tests run, may have issues.
//
// More docs to come.
//
// No memory allocations; uses qsort() and assert() from stdlib.
// Can override those by defining STBRP_SORT and STBRP_ASSERT.
//
// This library currently uses the Skyline Bottom-Left algorithm.
//
// Please note: better rectangle packers are welcome! Please
// implement them to the same API, but with a different init
// function.
//
// Credits
//
// Library
// Sean Barrett
// Minor features
// Martins Mozeiko
// github:IntellectualKitty
//
// Bugfixes / warning fixes
// Jeremy Jaussaud
// Fabian Giesen
//
// Version history:
//
// 1.01 (2021-07-11) always use large rect mode, expose STBRP__MAXVAL in public section
// 1.00 (2019-02-25) avoid small space waste; gracefully fail too-wide rectangles
// 0.99 (2019-02-07) warning fixes
// 0.11 (2017-03-03) return packing success/fail result
// 0.10 (2016-10-25) remove cast-away-const to avoid warnings
// 0.09 (2016-08-27) fix compiler warnings
// 0.08 (2015-09-13) really fix bug with empty rects (w=0 or h=0)
// 0.07 (2015-09-13) fix bug with empty rects (w=0 or h=0)
// 0.06 (2015-04-15) added STBRP_SORT to allow replacing qsort
// 0.05: added STBRP_ASSERT to allow replacing assert
// 0.04: fixed minor bug in STBRP_LARGE_RECTS support
// 0.01: initial release
//
// LICENSE
//
// See end of file for license information.
//////////////////////////////////////////////////////////////////////////////
//
// INCLUDE SECTION
//
#ifndef STB_INCLUDE_STB_RECT_PACK_H
#define STB_INCLUDE_STB_RECT_PACK_H
#define STB_RECT_PACK_VERSION 1
#ifdef STBRP_STATIC
#define STBRP_DEF static
#else
#define STBRP_DEF extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef struct stbrp_context stbrp_context;
typedef struct stbrp_node stbrp_node;
typedef struct stbrp_rect stbrp_rect;
typedef int stbrp_coord;
#define STBRP__MAXVAL 0x7fffffff
// Mostly for internal use, but this is the maximum supported coordinate value.
STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
// Assign packed locations to rectangles. The rectangles are of type
// 'stbrp_rect' defined below, stored in the array 'rects', and there
// are 'num_rects' many of them.
//
// Rectangles which are successfully packed have the 'was_packed' flag
// set to a non-zero value and 'x' and 'y' store the minimum location
// on each axis (i.e. bottom-left in cartesian coordinates, top-left
// if you imagine y increasing downwards). Rectangles which do not fit
// have the 'was_packed' flag set to 0.
//
// You should not try to access the 'rects' array from another thread
// while this function is running, as the function temporarily reorders
// the array while it executes.
//
// To pack into another rectangle, you need to call stbrp_init_target
// again. To continue packing into the same rectangle, you can call
// this function again. Calling this multiple times with multiple rect
// arrays will probably produce worse packing results than calling it
// a single time with the full rectangle array, but the option is
// available.
//
// The function returns 1 if all of the rectangles were successfully
// packed and 0 otherwise.
struct stbrp_rect
{
// reserved for your use:
int id;
// input:
stbrp_coord w, h;
// output:
stbrp_coord x, y;
int was_packed; // non-zero if valid packing
}; // 16 bytes, nominally
STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes);
// Initialize a rectangle packer to:
// pack a rectangle that is 'width' by 'height' in dimensions
// using temporary storage provided by the array 'nodes', which is 'num_nodes' long
//
// You must call this function every time you start packing into a new target.
//
// There is no "shutdown" function. The 'nodes' memory must stay valid for
// the following stbrp_pack_rects() call (or calls), but can be freed after
// the call (or calls) finish.
//
// Note: to guarantee best results, either:
// 1. make sure 'num_nodes' >= 'width'
// or 2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1'
//
// If you don't do either of the above things, widths will be quantized to multiples
// of small integers to guarantee the algorithm doesn't run out of temporary storage.
//
// If you do #2, then the non-quantized algorithm will be used, but the algorithm
// may run out of temporary storage and be unable to pack some rectangles.
STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem);
// Optionally call this function after init but before doing any packing to
// change the handling of the out-of-temp-memory scenario, described above.
// If you call init again, this will be reset to the default (false).
STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic);
// Optionally select which packing heuristic the library should use. Different
// heuristics will produce better/worse results for different data sets.
// If you call init again, this will be reset to the default.
enum
{
STBRP_HEURISTIC_Skyline_default=0,
STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default,
STBRP_HEURISTIC_Skyline_BF_sortHeight
};
//////////////////////////////////////////////////////////////////////////////
//
// the details of the following structures don't matter to you, but they must
// be visible so you can handle the memory allocations for them
struct stbrp_node
{
stbrp_coord x,y;
stbrp_node *next;
};
struct stbrp_context
{
int width;
int height;
int align;
int init_mode;
int heuristic;
int num_nodes;
stbrp_node *active_head;
stbrp_node *free_head;
stbrp_node extra[2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2'
};
#ifdef __cplusplus
}
#endif
#endif
//////////////////////////////////////////////////////////////////////////////
//
// IMPLEMENTATION SECTION
//
#ifdef STB_RECT_PACK_IMPLEMENTATION
#ifndef STBRP_SORT
#include <stdlib.h>
#define STBRP_SORT qsort
#endif
#ifndef STBRP_ASSERT
#include <assert.h>
#define STBRP_ASSERT assert
#endif
#ifdef _MSC_VER
#define STBRP__NOTUSED(v) (void)(v)
#define STBRP__CDECL __cdecl
#else
#define STBRP__NOTUSED(v) (void)sizeof(v)
#define STBRP__CDECL
#endif
enum
{
STBRP__INIT_skyline = 1
};
STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic)
{
switch (context->init_mode) {
case STBRP__INIT_skyline:
STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight);
context->heuristic = heuristic;
break;
default:
STBRP_ASSERT(0);
}
}
STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem)
{
if (allow_out_of_mem)
// if it's ok to run out of memory, then don't bother aligning them;
// this gives better packing, but may fail due to OOM (even though
// the rectangles easily fit). @TODO a smarter approach would be to only
// quantize once we've hit OOM, then we could get rid of this parameter.
context->align = 1;
else {
// if it's not ok to run out of memory, then quantize the widths
// so that num_nodes is always enough nodes.
//
// I.e. num_nodes * align >= width
// align >= width / num_nodes
// align = ceil(width/num_nodes)
context->align = (context->width + context->num_nodes-1) / context->num_nodes;
}
}
STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
{
int i;
for (i=0; i < num_nodes-1; ++i)
nodes[i].next = &nodes[i+1];
nodes[i].next = NULL;
context->init_mode = STBRP__INIT_skyline;
context->heuristic = STBRP_HEURISTIC_Skyline_default;
context->free_head = &nodes[0];
context->active_head = &context->extra[0];
context->width = width;
context->height = height;
context->num_nodes = num_nodes;
stbrp_setup_allow_out_of_mem(context, 0);
// node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly)
context->extra[0].x = 0;
context->extra[0].y = 0;
context->extra[0].next = &context->extra[1];
context->extra[1].x = (stbrp_coord) width;
context->extra[1].y = (1<<30);
context->extra[1].next = NULL;
}
// find minimum y position if it starts at x1
static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste)
{
stbrp_node *node = first;
int x1 = x0 + width;
int min_y, visited_width, waste_area;
STBRP__NOTUSED(c);
STBRP_ASSERT(first->x <= x0);
#if 0
// skip in case we're past the node
while (node->next->x <= x0)
++node;
#else
STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency
#endif
STBRP_ASSERT(node->x <= x0);
min_y = 0;
waste_area = 0;
visited_width = 0;
while (node->x < x1) {
if (node->y > min_y) {
// raise min_y higher.
// we've accounted for all waste up to min_y,
// but we'll now add more waste for everything we've visted
waste_area += visited_width * (node->y - min_y);
min_y = node->y;
// the first time through, visited_width might be reduced
if (node->x < x0)
visited_width += node->next->x - x0;
else
visited_width += node->next->x - node->x;
} else {
// add waste area
int under_width = node->next->x - node->x;
if (under_width + visited_width > width)
under_width = width - visited_width;
waste_area += under_width * (min_y - node->y);
visited_width += under_width;
}
node = node->next;
}
*pwaste = waste_area;
return min_y;
}
typedef struct
{
int x,y;
stbrp_node **prev_link;
} stbrp__findresult;
static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height)
{
int best_waste = (1<<30), best_x, best_y = (1 << 30);
stbrp__findresult fr;
stbrp_node **prev, *node, *tail, **best = NULL;
// align to multiple of c->align
width = (width + c->align - 1);
width -= width % c->align;
STBRP_ASSERT(width % c->align == 0);
// if it can't possibly fit, bail immediately
if (width > c->width || height > c->height) {
fr.prev_link = NULL;
fr.x = fr.y = 0;
return fr;
}
node = c->active_head;
prev = &c->active_head;
while (node->x + width <= c->width) {
int y,waste;
y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste);
if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL
// bottom left
if (y < best_y) {
best_y = y;
best = prev;
}
} else {
// best-fit
if (y + height <= c->height) {
// can only use it if it first vertically
if (y < best_y || (y == best_y && waste < best_waste)) {
best_y = y;
best_waste = waste;
best = prev;
}
}
}
prev = &node->next;
node = node->next;
}
best_x = (best == NULL) ? 0 : (*best)->x;
// if doing best-fit (BF), we also have to try aligning right edge to each node position
//
// e.g, if fitting
//
// ____________________
// |____________________|
//
// into
//
// | |
// | ____________|
// |____________|
//
// then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned
//
// This makes BF take about 2x the time
if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) {
tail = c->active_head;
node = c->active_head;
prev = &c->active_head;
// find first node that's admissible
while (tail->x < width)
tail = tail->next;
while (tail) {
int xpos = tail->x - width;
int y,waste;
STBRP_ASSERT(xpos >= 0);
// find the left position that matches this
while (node->next->x <= xpos) {
prev = &node->next;
node = node->next;
}
STBRP_ASSERT(node->next->x > xpos && node->x <= xpos);
y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste);
if (y + height <= c->height) {
if (y <= best_y) {
if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
best_x = xpos;
//STBRP_ASSERT(y <= best_y); [DEAR IMGUI]
best_y = y;
best_waste = waste;
best = prev;
}
}
}
tail = tail->next;
}
}
fr.prev_link = best;
fr.x = best_x;
fr.y = best_y;
return fr;
}
static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height)
{
// find best position according to heuristic
stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height);
stbrp_node *node, *cur;
// bail if:
// 1. it failed
// 2. the best node doesn't fit (we don't always check this)
// 3. we're out of memory
if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) {
res.prev_link = NULL;
return res;
}
// on success, create new node
node = context->free_head;
node->x = (stbrp_coord) res.x;
node->y = (stbrp_coord) (res.y + height);
context->free_head = node->next;
// insert the new node into the right starting point, and
// let 'cur' point to the remaining nodes needing to be
// stiched back in
cur = *res.prev_link;
if (cur->x < res.x) {
// preserve the existing one, so start testing with the next one
stbrp_node *next = cur->next;
cur->next = node;
cur = next;
} else {
*res.prev_link = node;
}
// from here, traverse cur and free the nodes, until we get to one
// that shouldn't be freed
while (cur->next && cur->next->x <= res.x + width) {
stbrp_node *next = cur->next;
// move the current node to the free list
cur->next = context->free_head;
context->free_head = cur;
cur = next;
}
// stitch the list back in
node->next = cur;
if (cur->x < res.x + width)
cur->x = (stbrp_coord) (res.x + width);
#ifdef _DEBUG
cur = context->active_head;
while (cur->x < context->width) {
STBRP_ASSERT(cur->x < cur->next->x);
cur = cur->next;
}
STBRP_ASSERT(cur->next == NULL);
{
int count=0;
cur = context->active_head;
while (cur) {
cur = cur->next;
++count;
}
cur = context->free_head;
while (cur) {
cur = cur->next;
++count;
}
STBRP_ASSERT(count == context->num_nodes+2);
}
#endif
return res;
}
static int STBRP__CDECL rect_height_compare(const void *a, const void *b)
{
const stbrp_rect *p = (const stbrp_rect *) a;
const stbrp_rect *q = (const stbrp_rect *) b;
if (p->h > q->h)
return -1;
if (p->h < q->h)
return 1;
return (p->w > q->w) ? -1 : (p->w < q->w);
}
static int STBRP__CDECL rect_original_order(const void *a, const void *b)
{
const stbrp_rect *p = (const stbrp_rect *) a;
const stbrp_rect *q = (const stbrp_rect *) b;
return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
}
STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
{
int i, all_rects_packed = 1;
// we use the 'was_packed' field internally to allow sorting/unsorting
for (i=0; i < num_rects; ++i) {
rects[i].was_packed = i;
}
// sort according to heuristic
STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_height_compare);
for (i=0; i < num_rects; ++i) {
if (rects[i].w == 0 || rects[i].h == 0) {
rects[i].x = rects[i].y = 0; // empty rect needs no space
} else {
stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
if (fr.prev_link) {
rects[i].x = (stbrp_coord) fr.x;
rects[i].y = (stbrp_coord) fr.y;
} else {
rects[i].x = rects[i].y = STBRP__MAXVAL;
}
}
}
// unsort
STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order);
// set was_packed flags and all_rects_packed status
for (i=0; i < num_rects; ++i) {
rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
if (!rects[i].was_packed)
all_rects_packed = 0;
}
// return the all_rects_packed status
return all_rects_packed;
}
#endif
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/implot_internal.h | // MIT License
// Copyright (c) 2022 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.14
// You may use this file to debug, understand or extend ImPlot features but we
// don't provide any guarantee of forward compatibility!
//-----------------------------------------------------------------------------
// [SECTION] Header Mess
//-----------------------------------------------------------------------------
#pragma once
#include <time.h>
#include "imgui_internal.h"
#ifndef IMPLOT_VERSION
#error Must include implot.h before implot_internal.h
#endif
// Support for pre-1.84 versions. ImPool's GetSize() -> GetBufSize()
#if (IMGUI_VERSION_NUM < 18303)
#define GetBufSize GetSize
#endif
//-----------------------------------------------------------------------------
// [SECTION] Constants
//-----------------------------------------------------------------------------
// Constants can be changed unless stated otherwise. We may move some of these
// to ImPlotStyleVar_ over time.
// Mimimum allowable timestamp value 01/01/1970 @ 12:00am (UTC) (DO NOT DECREASE THIS)
#define IMPLOT_MIN_TIME 0
// Maximum allowable timestamp value 01/01/3000 @ 12:00am (UTC) (DO NOT INCREASE THIS)
#define IMPLOT_MAX_TIME 32503680000
// Default label format for axis labels
#define IMPLOT_LABEL_FORMAT "%g"
// Max character size for tick labels
#define IMPLOT_LABEL_MAX_SIZE 32
//-----------------------------------------------------------------------------
// [SECTION] Macros
//-----------------------------------------------------------------------------
#define IMPLOT_NUM_X_AXES ImAxis_Y1
#define IMPLOT_NUM_Y_AXES (ImAxis_COUNT - IMPLOT_NUM_X_AXES)
// Split ImU32 color into RGB components [0 255]
#define IM_COL32_SPLIT_RGB(col,r,g,b) \
ImU32 r = ((col >> IM_COL32_R_SHIFT) & 0xFF); \
ImU32 g = ((col >> IM_COL32_G_SHIFT) & 0xFF); \
ImU32 b = ((col >> IM_COL32_B_SHIFT) & 0xFF);
//-----------------------------------------------------------------------------
// [SECTION] Forward Declarations
//-----------------------------------------------------------------------------
struct ImPlotTick;
struct ImPlotAxis;
struct ImPlotAxisColor;
struct ImPlotItem;
struct ImPlotLegend;
struct ImPlotPlot;
struct ImPlotNextPlotData;
struct ImPlotTicker;
//-----------------------------------------------------------------------------
// [SECTION] Context Pointer
//-----------------------------------------------------------------------------
#ifndef GImPlot
extern IMPLOT_API ImPlotContext* GImPlot; // Current implicit context pointer
#endif
//-----------------------------------------------------------------------------
// [SECTION] Generic Helpers
//-----------------------------------------------------------------------------
// Computes the common (base-10) logarithm
static inline float ImLog10(float x) { return log10f(x); }
static inline double ImLog10(double x) { return log10(x); }
static inline float ImSinh(float x) { return sinhf(x); }
static inline double ImSinh(double x) { return sinh(x); }
static inline float ImAsinh(float x) { return asinhf(x); }
static inline double ImAsinh(double x) { return asinh(x); }
// Returns true if a flag is set
template <typename TSet, typename TFlag>
static inline bool ImHasFlag(TSet set, TFlag flag) { return (set & flag) == flag; }
// Flips a flag in a flagset
template <typename TSet, typename TFlag>
static inline void ImFlipFlag(TSet& set, TFlag flag) { ImHasFlag(set, flag) ? set &= ~flag : set |= flag; }
// Linearly remaps x from [x0 x1] to [y0 y1].
template <typename T>
static inline T ImRemap(T x, T x0, T x1, T y0, T y1) { return y0 + (x - x0) * (y1 - y0) / (x1 - x0); }
// Linear rempas x from [x0 x1] to [0 1]
template <typename T>
static inline T ImRemap01(T x, T x0, T x1) { return (x - x0) / (x1 - x0); }
// Returns always positive modulo (assumes r != 0)
static inline int ImPosMod(int l, int r) { return (l % r + r) % r; }
// Returns true if val is NAN
static inline bool ImNan(double val) { return isnan(val); }
// Returns true if val is NAN or INFINITY
static inline bool ImNanOrInf(double val) { return !(val >= -DBL_MAX && val <= DBL_MAX) || ImNan(val); }
// Turns NANs to 0s
static inline double ImConstrainNan(double val) { return ImNan(val) ? 0 : val; }
// Turns infinity to floating point maximums
static inline double ImConstrainInf(double val) { return val >= DBL_MAX ? DBL_MAX : val <= -DBL_MAX ? - DBL_MAX : val; }
// Turns numbers less than or equal to 0 to 0.001 (sort of arbitrary, is there a better way?)
static inline double ImConstrainLog(double val) { return val <= 0 ? 0.001f : val; }
// Turns numbers less than 0 to zero
static inline double ImConstrainTime(double val) { return val < IMPLOT_MIN_TIME ? IMPLOT_MIN_TIME : (val > IMPLOT_MAX_TIME ? IMPLOT_MAX_TIME : val); }
// True if two numbers are approximately equal using units in the last place.
static inline bool ImAlmostEqual(double v1, double v2, int ulp = 2) { return ImAbs(v1-v2) < DBL_EPSILON * ImAbs(v1+v2) * ulp || ImAbs(v1-v2) < DBL_MIN; }
// Finds min value in an unsorted array
template <typename T>
static inline T ImMinArray(const T* values, int count) { T m = values[0]; for (int i = 1; i < count; ++i) { if (values[i] < m) { m = values[i]; } } return m; }
// Finds the max value in an unsorted array
template <typename T>
static inline T ImMaxArray(const T* values, int count) { T m = values[0]; for (int i = 1; i < count; ++i) { if (values[i] > m) { m = values[i]; } } return m; }
// Finds the min and max value in an unsorted array
template <typename T>
static inline void ImMinMaxArray(const T* values, int count, T* min_out, T* max_out) {
T Min = values[0]; T Max = values[0];
for (int i = 1; i < count; ++i) {
if (values[i] < Min) { Min = values[i]; }
if (values[i] > Max) { Max = values[i]; }
}
*min_out = Min; *max_out = Max;
}
// Finds the sim of an array
template <typename T>
static inline T ImSum(const T* values, int count) {
T sum = 0;
for (int i = 0; i < count; ++i)
sum += values[i];
return sum;
}
// Finds the mean of an array
template <typename T>
static inline double ImMean(const T* values, int count) {
double den = 1.0 / count;
double mu = 0;
for (int i = 0; i < count; ++i)
mu += (double)values[i] * den;
return mu;
}
// Finds the sample standard deviation of an array
template <typename T>
static inline double ImStdDev(const T* values, int count) {
double den = 1.0 / (count - 1.0);
double mu = ImMean(values, count);
double x = 0;
for (int i = 0; i < count; ++i)
x += ((double)values[i] - mu) * ((double)values[i] - mu) * den;
return sqrt(x);
}
// Mix color a and b by factor s in [0 256]
static inline ImU32 ImMixU32(ImU32 a, ImU32 b, ImU32 s) {
#ifdef IMPLOT_MIX64
const ImU32 af = 256-s;
const ImU32 bf = s;
const ImU64 al = (a & 0x00ff00ff) | (((ImU64)(a & 0xff00ff00)) << 24);
const ImU64 bl = (b & 0x00ff00ff) | (((ImU64)(b & 0xff00ff00)) << 24);
const ImU64 mix = (al * af + bl * bf);
return ((mix >> 32) & 0xff00ff00) | ((mix & 0xff00ff00) >> 8);
#else
const ImU32 af = 256-s;
const ImU32 bf = s;
const ImU32 al = (a & 0x00ff00ff);
const ImU32 ah = (a & 0xff00ff00) >> 8;
const ImU32 bl = (b & 0x00ff00ff);
const ImU32 bh = (b & 0xff00ff00) >> 8;
const ImU32 ml = (al * af + bl * bf);
const ImU32 mh = (ah * af + bh * bf);
return (mh & 0xff00ff00) | ((ml & 0xff00ff00) >> 8);
#endif
}
// Lerp across an array of 32-bit collors given t in [0.0 1.0]
static inline ImU32 ImLerpU32(const ImU32* colors, int size, float t) {
int i1 = (int)((size - 1 ) * t);
int i2 = i1 + 1;
if (i2 == size || size == 1)
return colors[i1];
float den = 1.0f / (size - 1);
float t1 = i1 * den;
float t2 = i2 * den;
float tr = ImRemap01(t, t1, t2);
return ImMixU32(colors[i1], colors[i2], (ImU32)(tr*256));
}
// Set alpha channel of 32-bit color from float in range [0.0 1.0]
static inline ImU32 ImAlphaU32(ImU32 col, float alpha) {
return col & ~((ImU32)((1.0f-alpha)*255)<<IM_COL32_A_SHIFT);
}
// Returns true of two ranges overlap
template <typename T>
static inline bool ImOverlaps(T min_a, T max_a, T min_b, T max_b) {
return min_a <= max_b && min_b <= max_a;
}
//-----------------------------------------------------------------------------
// [SECTION] ImPlot Enums
//-----------------------------------------------------------------------------
typedef int ImPlotTimeUnit; // -> enum ImPlotTimeUnit_
typedef int ImPlotDateFmt; // -> enum ImPlotDateFmt_
typedef int ImPlotTimeFmt; // -> enum ImPlotTimeFmt_
enum ImPlotTimeUnit_ {
ImPlotTimeUnit_Us, // microsecond
ImPlotTimeUnit_Ms, // millisecond
ImPlotTimeUnit_S, // second
ImPlotTimeUnit_Min, // minute
ImPlotTimeUnit_Hr, // hour
ImPlotTimeUnit_Day, // day
ImPlotTimeUnit_Mo, // month
ImPlotTimeUnit_Yr, // year
ImPlotTimeUnit_COUNT
};
enum ImPlotDateFmt_ { // default [ ISO 8601 ]
ImPlotDateFmt_None = 0,
ImPlotDateFmt_DayMo, // 10/3 [ --10-03 ]
ImPlotDateFmt_DayMoYr, // 10/3/91 [ 1991-10-03 ]
ImPlotDateFmt_MoYr, // Oct 1991 [ 1991-10 ]
ImPlotDateFmt_Mo, // Oct [ --10 ]
ImPlotDateFmt_Yr // 1991 [ 1991 ]
};
enum ImPlotTimeFmt_ { // default [ 24 Hour Clock ]
ImPlotTimeFmt_None = 0,
ImPlotTimeFmt_Us, // .428 552 [ .428 552 ]
ImPlotTimeFmt_SUs, // :29.428 552 [ :29.428 552 ]
ImPlotTimeFmt_SMs, // :29.428 [ :29.428 ]
ImPlotTimeFmt_S, // :29 [ :29 ]
ImPlotTimeFmt_MinSMs, // 21:29.428 [ 21:29.428 ]
ImPlotTimeFmt_HrMinSMs, // 7:21:29.428pm [ 19:21:29.428 ]
ImPlotTimeFmt_HrMinS, // 7:21:29pm [ 19:21:29 ]
ImPlotTimeFmt_HrMin, // 7:21pm [ 19:21 ]
ImPlotTimeFmt_Hr // 7pm [ 19:00 ]
};
//-----------------------------------------------------------------------------
// [SECTION] Callbacks
//-----------------------------------------------------------------------------
typedef void (*ImPlotLocator)(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data);
//-----------------------------------------------------------------------------
// [SECTION] Structs
//-----------------------------------------------------------------------------
// Combined date/time format spec
struct ImPlotDateTimeSpec {
ImPlotDateTimeSpec() {}
ImPlotDateTimeSpec(ImPlotDateFmt date_fmt, ImPlotTimeFmt time_fmt, bool use_24_hr_clk = false, bool use_iso_8601 = false) {
Date = date_fmt;
Time = time_fmt;
UseISO8601 = use_iso_8601;
Use24HourClock = use_24_hr_clk;
}
ImPlotDateFmt Date;
ImPlotTimeFmt Time;
bool UseISO8601;
bool Use24HourClock;
};
// Two part timestamp struct.
struct ImPlotTime {
time_t S; // second part
int Us; // microsecond part
ImPlotTime() { S = 0; Us = 0; }
ImPlotTime(time_t s, int us = 0) { S = s + us / 1000000; Us = us % 1000000; }
void RollOver() { S = S + Us / 1000000; Us = Us % 1000000; }
double ToDouble() const { return (double)S + (double)Us / 1000000.0; }
static ImPlotTime FromDouble(double t) { return ImPlotTime((time_t)t, (int)(t * 1000000 - floor(t) * 1000000)); }
};
static inline ImPlotTime operator+(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return ImPlotTime(lhs.S + rhs.S, lhs.Us + rhs.Us); }
static inline ImPlotTime operator-(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return ImPlotTime(lhs.S - rhs.S, lhs.Us - rhs.Us); }
static inline bool operator==(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return lhs.S == rhs.S && lhs.Us == rhs.Us; }
static inline bool operator<(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return lhs.S == rhs.S ? lhs.Us < rhs.Us : lhs.S < rhs.S; }
static inline bool operator>(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return rhs < lhs; }
static inline bool operator<=(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return lhs < rhs || lhs == rhs; }
static inline bool operator>=(const ImPlotTime& lhs, const ImPlotTime& rhs)
{ return lhs > rhs || lhs == rhs; }
// Colormap data storage
struct ImPlotColormapData {
ImVector<ImU32> Keys;
ImVector<int> KeyCounts;
ImVector<int> KeyOffsets;
ImVector<ImU32> Tables;
ImVector<int> TableSizes;
ImVector<int> TableOffsets;
ImGuiTextBuffer Text;
ImVector<int> TextOffsets;
ImVector<bool> Quals;
ImGuiStorage Map;
int Count;
ImPlotColormapData() { Count = 0; }
int Append(const char* name, const ImU32* keys, int count, bool qual) {
if (GetIndex(name) != -1)
return -1;
KeyOffsets.push_back(Keys.size());
KeyCounts.push_back(count);
Keys.reserve(Keys.size()+count);
for (int i = 0; i < count; ++i)
Keys.push_back(keys[i]);
TextOffsets.push_back(Text.size());
Text.append(name, name + strlen(name) + 1);
Quals.push_back(qual);
ImGuiID id = ImHashStr(name);
int idx = Count++;
Map.SetInt(id,idx);
_AppendTable(idx);
return idx;
}
void _AppendTable(ImPlotColormap cmap) {
int key_count = GetKeyCount(cmap);
const ImU32* keys = GetKeys(cmap);
int off = Tables.size();
TableOffsets.push_back(off);
if (IsQual(cmap)) {
Tables.reserve(key_count);
for (int i = 0; i < key_count; ++i)
Tables.push_back(keys[i]);
TableSizes.push_back(key_count);
}
else {
int max_size = 255 * (key_count-1) + 1;
Tables.reserve(off + max_size);
// ImU32 last = keys[0];
// Tables.push_back(last);
// int n = 1;
for (int i = 0; i < key_count-1; ++i) {
for (int s = 0; s < 255; ++s) {
ImU32 a = keys[i];
ImU32 b = keys[i+1];
ImU32 c = ImMixU32(a,b,s);
// if (c != last) {
Tables.push_back(c);
// last = c;
// n++;
// }
}
}
ImU32 c = keys[key_count-1];
// if (c != last) {
Tables.push_back(c);
// n++;
// }
// TableSizes.push_back(n);
TableSizes.push_back(max_size);
}
}
void RebuildTables() {
Tables.resize(0);
TableSizes.resize(0);
TableOffsets.resize(0);
for (int i = 0; i < Count; ++i)
_AppendTable(i);
}
inline bool IsQual(ImPlotColormap cmap) const { return Quals[cmap]; }
inline const char* GetName(ImPlotColormap cmap) const { return cmap < Count ? Text.Buf.Data + TextOffsets[cmap] : NULL; }
inline ImPlotColormap GetIndex(const char* name) const { ImGuiID key = ImHashStr(name); return Map.GetInt(key,-1); }
inline const ImU32* GetKeys(ImPlotColormap cmap) const { return &Keys[KeyOffsets[cmap]]; }
inline int GetKeyCount(ImPlotColormap cmap) const { return KeyCounts[cmap]; }
inline ImU32 GetKeyColor(ImPlotColormap cmap, int idx) const { return Keys[KeyOffsets[cmap]+idx]; }
inline void SetKeyColor(ImPlotColormap cmap, int idx, ImU32 value) { Keys[KeyOffsets[cmap]+idx] = value; RebuildTables(); }
inline const ImU32* GetTable(ImPlotColormap cmap) const { return &Tables[TableOffsets[cmap]]; }
inline int GetTableSize(ImPlotColormap cmap) const { return TableSizes[cmap]; }
inline ImU32 GetTableColor(ImPlotColormap cmap, int idx) const { return Tables[TableOffsets[cmap]+idx]; }
inline ImU32 LerpTable(ImPlotColormap cmap, float t) const {
int off = TableOffsets[cmap];
int siz = TableSizes[cmap];
int idx = Quals[cmap] ? ImClamp((int)(siz*t),0,siz-1) : (int)((siz - 1) * t + 0.5f);
return Tables[off + idx];
}
};
// ImPlotPoint with positive/negative error values
struct ImPlotPointError {
double X, Y, Neg, Pos;
ImPlotPointError(double x, double y, double neg, double pos) {
X = x; Y = y; Neg = neg; Pos = pos;
}
};
// Interior plot label/annotation
struct ImPlotAnnotation {
ImVec2 Pos;
ImVec2 Offset;
ImU32 ColorBg;
ImU32 ColorFg;
int TextOffset;
bool Clamp;
ImPlotAnnotation() {
ColorBg = ColorFg = 0;
TextOffset = 0;
Clamp = false;
}
};
// Collection of plot labels
struct ImPlotAnnotationCollection {
ImVector<ImPlotAnnotation> Annotations;
ImGuiTextBuffer TextBuffer;
int Size;
ImPlotAnnotationCollection() { Reset(); }
void AppendV(const ImVec2& pos, const ImVec2& off, ImU32 bg, ImU32 fg, bool clamp, const char* fmt, va_list args) IM_FMTLIST(7) {
ImPlotAnnotation an;
an.Pos = pos; an.Offset = off;
an.ColorBg = bg; an.ColorFg = fg;
an.TextOffset = TextBuffer.size();
an.Clamp = clamp;
Annotations.push_back(an);
TextBuffer.appendfv(fmt, args);
const char nul[] = "";
TextBuffer.append(nul,nul+1);
Size++;
}
void Append(const ImVec2& pos, const ImVec2& off, ImU32 bg, ImU32 fg, bool clamp, const char* fmt, ...) IM_FMTARGS(7) {
va_list args;
va_start(args, fmt);
AppendV(pos, off, bg, fg, clamp, fmt, args);
va_end(args);
}
const char* GetText(int idx) {
return TextBuffer.Buf.Data + Annotations[idx].TextOffset;
}
void Reset() {
Annotations.shrink(0);
TextBuffer.Buf.shrink(0);
Size = 0;
}
};
struct ImPlotTag {
ImAxis Axis;
double Value;
ImU32 ColorBg;
ImU32 ColorFg;
int TextOffset;
};
struct ImPlotTagCollection {
ImVector<ImPlotTag> Tags;
ImGuiTextBuffer TextBuffer;
int Size;
ImPlotTagCollection() { Reset(); }
void AppendV(ImAxis axis, double value, ImU32 bg, ImU32 fg, const char* fmt, va_list args) IM_FMTLIST(6) {
ImPlotTag tag;
tag.Axis = axis;
tag.Value = value;
tag.ColorBg = bg;
tag.ColorFg = fg;
tag.TextOffset = TextBuffer.size();
Tags.push_back(tag);
TextBuffer.appendfv(fmt, args);
const char nul[] = "";
TextBuffer.append(nul,nul+1);
Size++;
}
void Append(ImAxis axis, double value, ImU32 bg, ImU32 fg, const char* fmt, ...) IM_FMTARGS(6) {
va_list args;
va_start(args, fmt);
AppendV(axis, value, bg, fg, fmt, args);
va_end(args);
}
const char* GetText(int idx) {
return TextBuffer.Buf.Data + Tags[idx].TextOffset;
}
void Reset() {
Tags.shrink(0);
TextBuffer.Buf.shrink(0);
Size = 0;
}
};
// Tick mark info
struct ImPlotTick
{
double PlotPos;
float PixelPos;
ImVec2 LabelSize;
int TextOffset;
bool Major;
bool ShowLabel;
int Level;
int Idx;
ImPlotTick(double value, bool major, int level, bool show_label) {
PixelPos = 0;
PlotPos = value;
Major = major;
ShowLabel = show_label;
Level = level;
TextOffset = -1;
}
};
// Collection of ticks
struct ImPlotTicker {
ImVector<ImPlotTick> Ticks;
ImGuiTextBuffer TextBuffer;
ImVec2 MaxSize;
ImVec2 LateSize;
int Levels;
ImPlotTicker() {
Reset();
}
ImPlotTick& AddTick(double value, bool major, int level, bool show_label, const char* label) {
ImPlotTick tick(value, major, level, show_label);
if (show_label && label != NULL) {
tick.TextOffset = TextBuffer.size();
TextBuffer.append(label, label + strlen(label) + 1);
tick.LabelSize = ImGui::CalcTextSize(TextBuffer.Buf.Data + tick.TextOffset);
}
return AddTick(tick);
}
ImPlotTick& AddTick(double value, bool major, int level, bool show_label, ImPlotFormatter formatter, void* data) {
ImPlotTick tick(value, major, level, show_label);
if (show_label && formatter != NULL) {
char buff[IMPLOT_LABEL_MAX_SIZE];
tick.TextOffset = TextBuffer.size();
formatter(tick.PlotPos, buff, sizeof(buff), data);
TextBuffer.append(buff, buff + strlen(buff) + 1);
tick.LabelSize = ImGui::CalcTextSize(TextBuffer.Buf.Data + tick.TextOffset);
}
return AddTick(tick);
}
inline ImPlotTick& AddTick(ImPlotTick tick) {
if (tick.ShowLabel) {
MaxSize.x = tick.LabelSize.x > MaxSize.x ? tick.LabelSize.x : MaxSize.x;
MaxSize.y = tick.LabelSize.y > MaxSize.y ? tick.LabelSize.y : MaxSize.y;
}
tick.Idx = Ticks.size();
Ticks.push_back(tick);
return Ticks.back();
}
const char* GetText(int idx) const {
return TextBuffer.Buf.Data + Ticks[idx].TextOffset;
}
const char* GetText(const ImPlotTick& tick) {
return GetText(tick.Idx);
}
void OverrideSizeLate(const ImVec2& size) {
LateSize.x = size.x > LateSize.x ? size.x : LateSize.x;
LateSize.y = size.y > LateSize.y ? size.y : LateSize.y;
}
void Reset() {
Ticks.shrink(0);
TextBuffer.Buf.shrink(0);
MaxSize = LateSize;
LateSize = ImVec2(0,0);
Levels = 1;
}
int TickCount() const {
return Ticks.Size;
}
};
// Axis state information that must persist after EndPlot
struct ImPlotAxis
{
ImGuiID ID;
ImPlotAxisFlags Flags;
ImPlotAxisFlags PreviousFlags;
ImPlotRange Range;
ImPlotCond RangeCond;
ImPlotScale Scale;
ImPlotRange FitExtents;
ImPlotAxis* OrthoAxis;
ImPlotRange ConstraintRange;
ImPlotRange ConstraintZoom;
ImPlotTicker Ticker;
ImPlotFormatter Formatter;
void* FormatterData;
char FormatSpec[16];
ImPlotLocator Locator;
double* LinkedMin;
double* LinkedMax;
int PickerLevel;
ImPlotTime PickerTimeMin, PickerTimeMax;
ImPlotTransform TransformForward;
ImPlotTransform TransformInverse;
void* TransformData;
float PixelMin, PixelMax;
double ScaleMin, ScaleMax;
double ScaleToPixel;
float Datum1, Datum2;
ImRect HoverRect;
int LabelOffset;
ImU32 ColorMaj, ColorMin, ColorTick, ColorTxt, ColorBg, ColorHov, ColorAct, ColorHiLi;
bool Enabled;
bool Vertical;
bool FitThisFrame;
bool HasRange;
bool HasFormatSpec;
bool ShowDefaultTicks;
bool Hovered;
bool Held;
ImPlotAxis() {
ID = 0;
Flags = PreviousFlags = ImPlotAxisFlags_None;
Range.Min = 0;
Range.Max = 1;
Scale = ImPlotScale_Linear;
TransformForward = TransformInverse = NULL;
TransformData = NULL;
FitExtents.Min = HUGE_VAL;
FitExtents.Max = -HUGE_VAL;
OrthoAxis = NULL;
ConstraintRange = ImPlotRange(-INFINITY,INFINITY);
ConstraintZoom = ImPlotRange(DBL_MIN,INFINITY);
LinkedMin = LinkedMax = NULL;
PickerLevel = 0;
Datum1 = Datum2 = 0;
PixelMin = PixelMax = 0;
LabelOffset = -1;
ColorMaj = ColorMin = ColorTick = ColorTxt = ColorBg = ColorHov = ColorAct = 0;
ColorHiLi = IM_COL32_BLACK_TRANS;
Formatter = NULL;
FormatterData = NULL;
Locator = NULL;
Enabled = Hovered = Held = FitThisFrame = HasRange = HasFormatSpec = false;
ShowDefaultTicks = true;
}
inline void Reset() {
Enabled = false;
Scale = ImPlotScale_Linear;
TransformForward = TransformInverse = NULL;
TransformData = NULL;
LabelOffset = -1;
HasFormatSpec = false;
Formatter = NULL;
FormatterData = NULL;
Locator = NULL;
ShowDefaultTicks = true;
FitThisFrame = false;
FitExtents.Min = HUGE_VAL;
FitExtents.Max = -HUGE_VAL;
OrthoAxis = NULL;
ConstraintRange = ImPlotRange(-INFINITY,INFINITY);
ConstraintZoom = ImPlotRange(DBL_MIN,INFINITY);
Ticker.Reset();
}
inline bool SetMin(double _min, bool force=false) {
if (!force && IsLockedMin())
return false;
_min = ImConstrainNan(ImConstrainInf(_min));
if (_min < ConstraintRange.Min)
_min = ConstraintRange.Min;
double z = Range.Max - _min;
if (z < ConstraintZoom.Min)
_min = Range.Max - ConstraintZoom.Min;
if (z > ConstraintZoom.Max)
_min = Range.Max - ConstraintZoom.Max;
if (_min >= Range.Max)
return false;
Range.Min = _min;
PickerTimeMin = ImPlotTime::FromDouble(Range.Min);
UpdateTransformCache();
return true;
};
inline bool SetMax(double _max, bool force=false) {
if (!force && IsLockedMax())
return false;
_max = ImConstrainNan(ImConstrainInf(_max));
if (_max > ConstraintRange.Max)
_max = ConstraintRange.Max;
double z = _max - Range.Min;
if (z < ConstraintZoom.Min)
_max = Range.Min + ConstraintZoom.Min;
if (z > ConstraintZoom.Max)
_max = Range.Min + ConstraintZoom.Max;
if (_max <= Range.Min)
return false;
Range.Max = _max;
PickerTimeMax = ImPlotTime::FromDouble(Range.Max);
UpdateTransformCache();
return true;
};
inline void SetRange(double v1, double v2) {
Range.Min = ImMin(v1,v2);
Range.Max = ImMax(v1,v2);
Constrain();
PickerTimeMin = ImPlotTime::FromDouble(Range.Min);
PickerTimeMax = ImPlotTime::FromDouble(Range.Max);
UpdateTransformCache();
}
inline void SetRange(const ImPlotRange& range) {
SetRange(range.Min, range.Max);
}
inline void SetAspect(double unit_per_pix) {
double new_size = unit_per_pix * PixelSize();
double delta = (new_size - Range.Size()) * 0.5;
if (IsLocked())
return;
else if (IsLockedMin() && !IsLockedMax())
SetRange(Range.Min, Range.Max + 2*delta);
else if (!IsLockedMin() && IsLockedMax())
SetRange(Range.Min - 2*delta, Range.Max);
else
SetRange(Range.Min - delta, Range.Max + delta);
}
inline float PixelSize() const { return ImAbs(PixelMax - PixelMin); }
inline double GetAspect() const { return Range.Size() / PixelSize(); }
inline void Constrain() {
Range.Min = ImConstrainNan(ImConstrainInf(Range.Min));
Range.Max = ImConstrainNan(ImConstrainInf(Range.Max));
if (Range.Min < ConstraintRange.Min)
Range.Min = ConstraintRange.Min;
if (Range.Max > ConstraintRange.Max)
Range.Max = ConstraintRange.Max;
double z = Range.Size();
if (z < ConstraintZoom.Min) {
double delta = (ConstraintZoom.Min - z) * 0.5;
Range.Min -= delta;
Range.Max += delta;
}
if (z > ConstraintZoom.Max) {
double delta = (z - ConstraintZoom.Max) * 0.5;
Range.Min += delta;
Range.Max -= delta;
}
if (Range.Max <= Range.Min)
Range.Max = Range.Min + DBL_EPSILON;
}
inline void UpdateTransformCache() {
ScaleToPixel = (PixelMax - PixelMin) / Range.Size();
if (TransformForward != NULL) {
ScaleMin = TransformForward(Range.Min, TransformData);
ScaleMax = TransformForward(Range.Max, TransformData);
}
else {
ScaleMin = Range.Min;
ScaleMax = Range.Max;
}
}
inline float PlotToPixels(double plt) const {
if (TransformForward != NULL) {
double s = TransformForward(plt, TransformData);
double t = (s - ScaleMin) / (ScaleMax - ScaleMin);
plt = Range.Min + Range.Size() * t;
}
return (float)(PixelMin + ScaleToPixel * (plt - Range.Min));
}
inline double PixelsToPlot(float pix) const {
double plt = (pix - PixelMin) / ScaleToPixel + Range.Min;
if (TransformInverse != NULL) {
double t = (plt - Range.Min) / Range.Size();
double s = t * (ScaleMax - ScaleMin) + ScaleMin;
plt = TransformInverse(s, TransformData);
}
return plt;
}
inline void ExtendFit(double v) {
if (!ImNanOrInf(v) && v >= ConstraintRange.Min && v <= ConstraintRange.Max) {
FitExtents.Min = v < FitExtents.Min ? v : FitExtents.Min;
FitExtents.Max = v > FitExtents.Max ? v : FitExtents.Max;
}
}
inline void ExtendFitWith(ImPlotAxis& alt, double v, double v_alt) {
if (ImHasFlag(Flags, ImPlotAxisFlags_RangeFit) && !alt.Range.Contains(v_alt))
return;
if (!ImNanOrInf(v) && v >= ConstraintRange.Min && v <= ConstraintRange.Max) {
FitExtents.Min = v < FitExtents.Min ? v : FitExtents.Min;
FitExtents.Max = v > FitExtents.Max ? v : FitExtents.Max;
}
}
inline void ApplyFit(float padding) {
const double ext_size = FitExtents.Size() * 0.5;
FitExtents.Min -= ext_size * padding;
FitExtents.Max += ext_size * padding;
if (!IsLockedMin() && !ImNanOrInf(FitExtents.Min))
Range.Min = FitExtents.Min;
if (!IsLockedMax() && !ImNanOrInf(FitExtents.Max))
Range.Max = FitExtents.Max;
if (ImAlmostEqual(Range.Min, Range.Max)) {
Range.Max += 0.5;
Range.Min -= 0.5;
}
Constrain();
UpdateTransformCache();
}
inline bool HasLabel() const { return LabelOffset != -1 && !ImHasFlag(Flags, ImPlotAxisFlags_NoLabel); }
inline bool HasGridLines() const { return !ImHasFlag(Flags, ImPlotAxisFlags_NoGridLines); }
inline bool HasTickLabels() const { return !ImHasFlag(Flags, ImPlotAxisFlags_NoTickLabels); }
inline bool HasTickMarks() const { return !ImHasFlag(Flags, ImPlotAxisFlags_NoTickMarks); }
inline bool WillRender() const { return Enabled && (HasGridLines() || HasTickLabels() || HasTickMarks()); }
inline bool IsOpposite() const { return ImHasFlag(Flags, ImPlotAxisFlags_Opposite); }
inline bool IsInverted() const { return ImHasFlag(Flags, ImPlotAxisFlags_Invert); }
inline bool IsForeground() const { return ImHasFlag(Flags, ImPlotAxisFlags_Foreground); }
inline bool IsAutoFitting() const { return ImHasFlag(Flags, ImPlotAxisFlags_AutoFit); }
inline bool CanInitFit() const { return !ImHasFlag(Flags, ImPlotAxisFlags_NoInitialFit) && !HasRange && !LinkedMin && !LinkedMax; }
inline bool IsRangeLocked() const { return HasRange && RangeCond == ImPlotCond_Always; }
inline bool IsLockedMin() const { return !Enabled || IsRangeLocked() || ImHasFlag(Flags, ImPlotAxisFlags_LockMin); }
inline bool IsLockedMax() const { return !Enabled || IsRangeLocked() || ImHasFlag(Flags, ImPlotAxisFlags_LockMax); }
inline bool IsLocked() const { return IsLockedMin() && IsLockedMax(); }
inline bool IsInputLockedMin() const { return IsLockedMin() || IsAutoFitting(); }
inline bool IsInputLockedMax() const { return IsLockedMax() || IsAutoFitting(); }
inline bool IsInputLocked() const { return IsLocked() || IsAutoFitting(); }
inline bool HasMenus() const { return !ImHasFlag(Flags, ImPlotAxisFlags_NoMenus); }
inline bool IsPanLocked(bool increasing) {
if (ImHasFlag(Flags, ImPlotAxisFlags_PanStretch)) {
return IsInputLocked();
}
else {
if (IsLockedMin() || IsLockedMax() || IsAutoFitting())
return false;
if (increasing)
return Range.Max == ConstraintRange.Max;
else
return Range.Min == ConstraintRange.Min;
}
}
void PushLinks() {
if (LinkedMin) { *LinkedMin = Range.Min; }
if (LinkedMax) { *LinkedMax = Range.Max; }
}
void PullLinks() {
if (LinkedMin) { SetMin(*LinkedMin,true); }
if (LinkedMax) { SetMax(*LinkedMax,true); }
}
};
// Align plots group data
struct ImPlotAlignmentData {
bool Vertical;
float PadA;
float PadB;
float PadAMax;
float PadBMax;
ImPlotAlignmentData() {
Vertical = true;
PadA = PadB = PadAMax = PadBMax = 0;
}
void Begin() { PadAMax = PadBMax = 0; }
void Update(float& pad_a, float& pad_b, float& delta_a, float& delta_b) {
float bak_a = pad_a; float bak_b = pad_b;
if (PadAMax < pad_a) { PadAMax = pad_a; }
if (PadBMax < pad_b) { PadBMax = pad_b; }
if (pad_a < PadA) { pad_a = PadA; delta_a = pad_a - bak_a; } else { delta_a = 0; }
if (pad_b < PadB) { pad_b = PadB; delta_b = pad_b - bak_b; } else { delta_b = 0; }
}
void End() { PadA = PadAMax; PadB = PadBMax; }
void Reset() { PadA = PadB = PadAMax = PadBMax = 0; }
};
// State information for Plot items
struct ImPlotItem
{
ImGuiID ID;
ImU32 Color;
ImRect LegendHoverRect;
int NameOffset;
bool Show;
bool LegendHovered;
bool SeenThisFrame;
ImPlotItem() {
ID = 0;
Color = IM_COL32_WHITE;
NameOffset = -1;
Show = true;
SeenThisFrame = false;
LegendHovered = false;
}
~ImPlotItem() { ID = 0; }
};
// Holds Legend state
struct ImPlotLegend
{
ImPlotLegendFlags Flags;
ImPlotLegendFlags PreviousFlags;
ImPlotLocation Location;
ImPlotLocation PreviousLocation;
ImVector<int> Indices;
ImGuiTextBuffer Labels;
ImRect Rect;
bool Hovered;
bool Held;
bool CanGoInside;
ImPlotLegend() {
Flags = PreviousFlags = ImPlotLegendFlags_None;
CanGoInside = true;
Hovered = Held = false;
Location = PreviousLocation = ImPlotLocation_NorthWest;
}
void Reset() { Indices.shrink(0); Labels.Buf.shrink(0); }
};
// Holds Items and Legend data
struct ImPlotItemGroup
{
ImGuiID ID;
ImPlotLegend Legend;
ImPool<ImPlotItem> ItemPool;
int ColormapIdx;
ImPlotItemGroup() { ID = 0; ColormapIdx = 0; }
int GetItemCount() const { return ItemPool.GetBufSize(); }
ImGuiID GetItemID(const char* label_id) { return ImGui::GetID(label_id); /* GetIDWithSeed */ }
ImPlotItem* GetItem(ImGuiID id) { return ItemPool.GetByKey(id); }
ImPlotItem* GetItem(const char* label_id) { return GetItem(GetItemID(label_id)); }
ImPlotItem* GetOrAddItem(ImGuiID id) { return ItemPool.GetOrAddByKey(id); }
ImPlotItem* GetItemByIndex(int i) { return ItemPool.GetByIndex(i); }
int GetItemIndex(ImPlotItem* item) { return ItemPool.GetIndex(item); }
int GetLegendCount() const { return Legend.Indices.size(); }
ImPlotItem* GetLegendItem(int i) { return ItemPool.GetByIndex(Legend.Indices[i]); }
const char* GetLegendLabel(int i) { return Legend.Labels.Buf.Data + GetLegendItem(i)->NameOffset; }
void Reset() { ItemPool.Clear(); Legend.Reset(); ColormapIdx = 0; }
};
// Holds Plot state information that must persist after EndPlot
struct ImPlotPlot
{
ImGuiID ID;
ImPlotFlags Flags;
ImPlotFlags PreviousFlags;
ImPlotLocation MouseTextLocation;
ImPlotMouseTextFlags MouseTextFlags;
ImPlotAxis Axes[ImAxis_COUNT];
ImGuiTextBuffer TextBuffer;
ImPlotItemGroup Items;
ImAxis CurrentX;
ImAxis CurrentY;
ImRect FrameRect;
ImRect CanvasRect;
ImRect PlotRect;
ImRect AxesRect;
ImRect SelectRect;
ImVec2 SelectStart;
int TitleOffset;
bool JustCreated;
bool Initialized;
bool SetupLocked;
bool FitThisFrame;
bool Hovered;
bool Held;
bool Selecting;
bool Selected;
bool ContextLocked;
ImPlotPlot() {
Flags = PreviousFlags = ImPlotFlags_None;
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i)
XAxis(i).Vertical = false;
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i)
YAxis(i).Vertical = true;
SelectStart = ImVec2(0,0);
CurrentX = ImAxis_X1;
CurrentY = ImAxis_Y1;
MouseTextLocation = ImPlotLocation_South | ImPlotLocation_East;
MouseTextFlags = ImPlotMouseTextFlags_None;
TitleOffset = -1;
JustCreated = true;
Initialized = SetupLocked = FitThisFrame = false;
Hovered = Held = Selected = Selecting = ContextLocked = false;
}
inline bool IsInputLocked() const {
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i) {
if (!XAxis(i).IsInputLocked())
return false;
}
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i) {
if (!YAxis(i).IsInputLocked())
return false;
}
return true;
}
inline void ClearTextBuffer() { TextBuffer.Buf.shrink(0); }
inline void SetTitle(const char* title) {
if (title && ImGui::FindRenderedTextEnd(title, NULL) != title) {
TitleOffset = TextBuffer.size();
TextBuffer.append(title, title + strlen(title) + 1);
}
else {
TitleOffset = -1;
}
}
inline bool HasTitle() const { return TitleOffset != -1 && !ImHasFlag(Flags, ImPlotFlags_NoTitle); }
inline const char* GetTitle() const { return TextBuffer.Buf.Data + TitleOffset; }
inline ImPlotAxis& XAxis(int i) { return Axes[ImAxis_X1 + i]; }
inline const ImPlotAxis& XAxis(int i) const { return Axes[ImAxis_X1 + i]; }
inline ImPlotAxis& YAxis(int i) { return Axes[ImAxis_Y1 + i]; }
inline const ImPlotAxis& YAxis(int i) const { return Axes[ImAxis_Y1 + i]; }
inline int EnabledAxesX() {
int cnt = 0;
for (int i = 0; i < IMPLOT_NUM_X_AXES; ++i)
cnt += XAxis(i).Enabled;
return cnt;
}
inline int EnabledAxesY() {
int cnt = 0;
for (int i = 0; i < IMPLOT_NUM_Y_AXES; ++i)
cnt += YAxis(i).Enabled;
return cnt;
}
inline void SetAxisLabel(ImPlotAxis& axis, const char* label) {
if (label && ImGui::FindRenderedTextEnd(label, NULL) != label) {
axis.LabelOffset = TextBuffer.size();
TextBuffer.append(label, label + strlen(label) + 1);
}
else {
axis.LabelOffset = -1;
}
}
inline const char* GetAxisLabel(const ImPlotAxis& axis) const { return TextBuffer.Buf.Data + axis.LabelOffset; }
};
// Holds subplot data that must persist after EndSubplot
struct ImPlotSubplot {
ImGuiID ID;
ImPlotSubplotFlags Flags;
ImPlotSubplotFlags PreviousFlags;
ImPlotItemGroup Items;
int Rows;
int Cols;
int CurrentIdx;
ImRect FrameRect;
ImRect GridRect;
ImVec2 CellSize;
ImVector<ImPlotAlignmentData> RowAlignmentData;
ImVector<ImPlotAlignmentData> ColAlignmentData;
ImVector<float> RowRatios;
ImVector<float> ColRatios;
ImVector<ImPlotRange> RowLinkData;
ImVector<ImPlotRange> ColLinkData;
float TempSizes[2];
bool FrameHovered;
bool HasTitle;
ImPlotSubplot() {
ID = 0;
Flags = PreviousFlags = ImPlotSubplotFlags_None;
Rows = Cols = CurrentIdx = 0;
FrameHovered = false;
Items.Legend.Location = ImPlotLocation_North;
Items.Legend.Flags = ImPlotLegendFlags_Horizontal|ImPlotLegendFlags_Outside;
Items.Legend.CanGoInside = false;
TempSizes[0] = TempSizes[1] = 0;
FrameHovered = false;
HasTitle = false;
}
};
// Temporary data storage for upcoming plot
struct ImPlotNextPlotData
{
ImPlotCond RangeCond[ImAxis_COUNT];
ImPlotRange Range[ImAxis_COUNT];
bool HasRange[ImAxis_COUNT];
bool Fit[ImAxis_COUNT];
double* LinkedMin[ImAxis_COUNT];
double* LinkedMax[ImAxis_COUNT];
ImPlotNextPlotData() { Reset(); }
void Reset() {
for (int i = 0; i < ImAxis_COUNT; ++i) {
HasRange[i] = false;
Fit[i] = false;
LinkedMin[i] = LinkedMax[i] = NULL;
}
}
};
// Temporary data storage for upcoming item
struct ImPlotNextItemData {
ImVec4 Colors[5]; // ImPlotCol_Line, ImPlotCol_Fill, ImPlotCol_MarkerOutline, ImPlotCol_MarkerFill, ImPlotCol_ErrorBar
float LineWeight;
ImPlotMarker Marker;
float MarkerSize;
float MarkerWeight;
float FillAlpha;
float ErrorBarSize;
float ErrorBarWeight;
float DigitalBitHeight;
float DigitalBitGap;
bool RenderLine;
bool RenderFill;
bool RenderMarkerLine;
bool RenderMarkerFill;
bool HasHidden;
bool Hidden;
ImPlotCond HiddenCond;
ImPlotNextItemData() { Reset(); }
void Reset() {
for (int i = 0; i < 5; ++i)
Colors[i] = IMPLOT_AUTO_COL;
LineWeight = MarkerSize = MarkerWeight = FillAlpha = ErrorBarSize = ErrorBarWeight = DigitalBitHeight = DigitalBitGap = IMPLOT_AUTO;
Marker = IMPLOT_AUTO;
HasHidden = Hidden = false;
}
};
// Holds state information that must persist between calls to BeginPlot()/EndPlot()
struct ImPlotContext {
// Plot States
ImPool<ImPlotPlot> Plots;
ImPool<ImPlotSubplot> Subplots;
ImPlotPlot* CurrentPlot;
ImPlotSubplot* CurrentSubplot;
ImPlotItemGroup* CurrentItems;
ImPlotItem* CurrentItem;
ImPlotItem* PreviousItem;
// Tick Marks and Labels
ImPlotTicker CTicker;
// Annotation and Tabs
ImPlotAnnotationCollection Annotations;
ImPlotTagCollection Tags;
// Flags
bool ChildWindowMade;
// Style and Colormaps
ImPlotStyle Style;
ImVector<ImGuiColorMod> ColorModifiers;
ImVector<ImGuiStyleMod> StyleModifiers;
ImPlotColormapData ColormapData;
ImVector<ImPlotColormap> ColormapModifiers;
// Time
tm Tm;
// Temp data for general use
ImVector<double> TempDouble1, TempDouble2;
ImVector<int> TempInt1;
// Misc
int DigitalPlotItemCnt;
int DigitalPlotOffset;
ImPlotNextPlotData NextPlotData;
ImPlotNextItemData NextItemData;
ImPlotInputMap InputMap;
bool OpenContextThisFrame;
ImGuiTextBuffer MousePosStringBuilder;
ImPlotItemGroup* SortItems;
// Align plots
ImPool<ImPlotAlignmentData> AlignmentData;
ImPlotAlignmentData* CurrentAlignmentH;
ImPlotAlignmentData* CurrentAlignmentV;
};
//-----------------------------------------------------------------------------
// [SECTION] Internal API
// No guarantee of forward compatibility here!
//-----------------------------------------------------------------------------
namespace ImPlot {
//-----------------------------------------------------------------------------
// [SECTION] Context Utils
//-----------------------------------------------------------------------------
// Initializes an ImPlotContext
IMPLOT_API void Initialize(ImPlotContext* ctx);
// Resets an ImPlot context for the next call to BeginPlot
IMPLOT_API void ResetCtxForNextPlot(ImPlotContext* ctx);
// Resets an ImPlot context for the next call to BeginAlignedPlots
IMPLOT_API void ResetCtxForNextAlignedPlots(ImPlotContext* ctx);
// Resets an ImPlot context for the next call to BeginSubplot
IMPLOT_API void ResetCtxForNextSubplot(ImPlotContext* ctx);
//-----------------------------------------------------------------------------
// [SECTION] Plot Utils
//-----------------------------------------------------------------------------
// Gets a plot from the current ImPlotContext
IMPLOT_API ImPlotPlot* GetPlot(const char* title);
// Gets the current plot from the current ImPlotContext
IMPLOT_API ImPlotPlot* GetCurrentPlot();
// Busts the cache for every plot in the current context
IMPLOT_API void BustPlotCache();
// Shows a plot's context menu.
IMPLOT_API void ShowPlotContextMenu(ImPlotPlot& plot);
//-----------------------------------------------------------------------------
// [SECTION] Setup Utils
//-----------------------------------------------------------------------------
// Lock Setup and call SetupFinish if necessary.
static inline void SetupLock() {
if (!GImPlot->CurrentPlot->SetupLocked)
SetupFinish();
GImPlot->CurrentPlot->SetupLocked = true;
}
//-----------------------------------------------------------------------------
// [SECTION] Subplot Utils
//-----------------------------------------------------------------------------
// Advances to next subplot
IMPLOT_API void SubplotNextCell();
// Shows a subplot's context menu.
IMPLOT_API void ShowSubplotsContextMenu(ImPlotSubplot& subplot);
//-----------------------------------------------------------------------------
// [SECTION] Item Utils
//-----------------------------------------------------------------------------
// Begins a new item. Returns false if the item should not be plotted. Pushes PlotClipRect.
IMPLOT_API bool BeginItem(const char* label_id, ImPlotItemFlags flags=0, ImPlotCol recolor_from=IMPLOT_AUTO);
// Same as above but with fitting functionality.
template <typename _Fitter>
bool BeginItemEx(const char* label_id, const _Fitter& fitter, ImPlotItemFlags flags=0, ImPlotCol recolor_from=IMPLOT_AUTO) {
if (BeginItem(label_id, flags, recolor_from)) {
ImPlotPlot& plot = *GetCurrentPlot();
if (plot.FitThisFrame && !ImHasFlag(flags, ImPlotItemFlags_NoFit))
fitter.Fit(plot.Axes[plot.CurrentX], plot.Axes[plot.CurrentY]);
return true;
}
return false;
}
// Ends an item (call only if BeginItem returns true). Pops PlotClipRect.
IMPLOT_API void EndItem();
// Register or get an existing item from the current plot.
IMPLOT_API ImPlotItem* RegisterOrGetItem(const char* label_id, ImPlotItemFlags flags, bool* just_created = NULL);
// Get a plot item from the current plot.
IMPLOT_API ImPlotItem* GetItem(const char* label_id);
// Gets the current item.
IMPLOT_API ImPlotItem* GetCurrentItem();
// Busts the cache for every item for every plot in the current context.
IMPLOT_API void BustItemCache();
//-----------------------------------------------------------------------------
// [SECTION] Axis Utils
//-----------------------------------------------------------------------------
// Returns true if any enabled axis is locked from user input.
static inline bool AnyAxesInputLocked(ImPlotAxis* axes, int count) {
for (int i = 0; i < count; ++i) {
if (axes[i].Enabled && axes[i].IsInputLocked())
return true;
}
return false;
}
// Returns true if all enabled axes are locked from user input.
static inline bool AllAxesInputLocked(ImPlotAxis* axes, int count) {
for (int i = 0; i < count; ++i) {
if (axes[i].Enabled && !axes[i].IsInputLocked())
return false;
}
return true;
}
static inline bool AnyAxesHeld(ImPlotAxis* axes, int count) {
for (int i = 0; i < count; ++i) {
if (axes[i].Enabled && axes[i].Held)
return true;
}
return false;
}
static inline bool AnyAxesHovered(ImPlotAxis* axes, int count) {
for (int i = 0; i < count; ++i) {
if (axes[i].Enabled && axes[i].Hovered)
return true;
}
return false;
}
// Returns true if the user has requested data to be fit.
static inline bool FitThisFrame() {
return GImPlot->CurrentPlot->FitThisFrame;
}
// Extends the current plot's axes so that it encompasses a vertical line at x
static inline void FitPointX(double x) {
ImPlotPlot& plot = *GetCurrentPlot();
ImPlotAxis& x_axis = plot.Axes[plot.CurrentX];
x_axis.ExtendFit(x);
}
// Extends the current plot's axes so that it encompasses a horizontal line at y
static inline void FitPointY(double y) {
ImPlotPlot& plot = *GetCurrentPlot();
ImPlotAxis& y_axis = plot.Axes[plot.CurrentY];
y_axis.ExtendFit(y);
}
// Extends the current plot's axes so that it encompasses point p
static inline void FitPoint(const ImPlotPoint& p) {
ImPlotPlot& plot = *GetCurrentPlot();
ImPlotAxis& x_axis = plot.Axes[plot.CurrentX];
ImPlotAxis& y_axis = plot.Axes[plot.CurrentY];
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
// Returns true if two ranges overlap
static inline bool RangesOverlap(const ImPlotRange& r1, const ImPlotRange& r2)
{ return r1.Min <= r2.Max && r2.Min <= r1.Max; }
// Shows an axis's context menu.
IMPLOT_API void ShowAxisContextMenu(ImPlotAxis& axis, ImPlotAxis* equal_axis, bool time_allowed = false);
//-----------------------------------------------------------------------------
// [SECTION] Legend Utils
//-----------------------------------------------------------------------------
// Gets the position of an inner rect that is located inside of an outer rect according to an ImPlotLocation and padding amount.
IMPLOT_API ImVec2 GetLocationPos(const ImRect& outer_rect, const ImVec2& inner_size, ImPlotLocation location, const ImVec2& pad = ImVec2(0,0));
// Calculates the bounding box size of a legend
IMPLOT_API ImVec2 CalcLegendSize(ImPlotItemGroup& items, const ImVec2& pad, const ImVec2& spacing, bool vertical);
// Renders legend entries into a bounding box
IMPLOT_API bool ShowLegendEntries(ImPlotItemGroup& items, const ImRect& legend_bb, bool interactable, const ImVec2& pad, const ImVec2& spacing, bool vertical, ImDrawList& DrawList);
// Shows an alternate legend for the plot identified by #title_id, outside of the plot frame (can be called before or after of Begin/EndPlot but must occur in the same ImGui window!).
IMPLOT_API void ShowAltLegend(const char* title_id, bool vertical = true, const ImVec2 size = ImVec2(0,0), bool interactable = true);
// Shows an legends's context menu.
IMPLOT_API bool ShowLegendContextMenu(ImPlotLegend& legend, bool visible);
//-----------------------------------------------------------------------------
// [SECTION] Label Utils
//-----------------------------------------------------------------------------
// Create a a string label for a an axis value
IMPLOT_API void LabelAxisValue(const ImPlotAxis& axis, double value, char* buff, int size, bool round = false);
//-----------------------------------------------------------------------------
// [SECTION] Styling Utils
//-----------------------------------------------------------------------------
// Get styling data for next item (call between Begin/EndItem)
static inline const ImPlotNextItemData& GetItemData() { return GImPlot->NextItemData; }
// Returns true if a color is set to be automatically determined
static inline bool IsColorAuto(const ImVec4& col) { return col.w == -1; }
// Returns true if a style color is set to be automaticaly determined
static inline bool IsColorAuto(ImPlotCol idx) { return IsColorAuto(GImPlot->Style.Colors[idx]); }
// Returns the automatically deduced style color
IMPLOT_API ImVec4 GetAutoColor(ImPlotCol idx);
// Returns the style color whether it is automatic or custom set
static inline ImVec4 GetStyleColorVec4(ImPlotCol idx) { return IsColorAuto(idx) ? GetAutoColor(idx) : GImPlot->Style.Colors[idx]; }
static inline ImU32 GetStyleColorU32(ImPlotCol idx) { return ImGui::ColorConvertFloat4ToU32(GetStyleColorVec4(idx)); }
// Draws vertical text. The position is the bottom left of the text rect.
IMPLOT_API void AddTextVertical(ImDrawList *DrawList, ImVec2 pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
// Draws multiline horizontal text centered.
IMPLOT_API void AddTextCentered(ImDrawList* DrawList, ImVec2 top_center, ImU32 col, const char* text_begin, const char* text_end = NULL);
// Calculates the size of vertical text
static inline ImVec2 CalcTextSizeVertical(const char *text) {
ImVec2 sz = ImGui::CalcTextSize(text);
return ImVec2(sz.y, sz.x);
}
// Returns white or black text given background color
static inline ImU32 CalcTextColor(const ImVec4& bg) { return (bg.x * 0.299f + bg.y * 0.587f + bg.z * 0.114f) > 0.5f ? IM_COL32_BLACK : IM_COL32_WHITE; }
static inline ImU32 CalcTextColor(ImU32 bg) { return CalcTextColor(ImGui::ColorConvertU32ToFloat4(bg)); }
// Lightens or darkens a color for hover
static inline ImU32 CalcHoverColor(ImU32 col) { return ImMixU32(col, CalcTextColor(col), 32); }
// Clamps a label position so that it fits a rect defined by Min/Max
static inline ImVec2 ClampLabelPos(ImVec2 pos, const ImVec2& size, const ImVec2& Min, const ImVec2& Max) {
if (pos.x < Min.x) pos.x = Min.x;
if (pos.y < Min.y) pos.y = Min.y;
if ((pos.x + size.x) > Max.x) pos.x = Max.x - size.x;
if ((pos.y + size.y) > Max.y) pos.y = Max.y - size.y;
return pos;
}
// Returns a color from the Color map given an index >= 0 (modulo will be performed).
IMPLOT_API ImU32 GetColormapColorU32(int idx, ImPlotColormap cmap);
// Returns the next unused colormap color and advances the colormap. Can be used to skip colors if desired.
IMPLOT_API ImU32 NextColormapColorU32();
// Linearly interpolates a color from the current colormap given t between 0 and 1.
IMPLOT_API ImU32 SampleColormapU32(float t, ImPlotColormap cmap);
// Render a colormap bar
IMPLOT_API void RenderColorBar(const ImU32* colors, int size, ImDrawList& DrawList, const ImRect& bounds, bool vert, bool reversed, bool continuous);
//-----------------------------------------------------------------------------
// [SECTION] Math and Misc Utils
//-----------------------------------------------------------------------------
// Rounds x to powers of 2,5 and 10 for generating axis labels (from Graphics Gems 1 Chapter 11.2)
IMPLOT_API double NiceNum(double x, bool round);
// Computes order of magnitude of double.
static inline int OrderOfMagnitude(double val) { return val == 0 ? 0 : (int)(floor(log10(fabs(val)))); }
// Returns the precision required for a order of magnitude.
static inline int OrderToPrecision(int order) { return order > 0 ? 0 : 1 - order; }
// Returns a floating point precision to use given a value
static inline int Precision(double val) { return OrderToPrecision(OrderOfMagnitude(val)); }
// Round a value to a given precision
static inline double RoundTo(double val, int prec) { double p = pow(10,(double)prec); return floor(val*p+0.5)/p; }
// Returns the intersection point of two lines A and B (assumes they are not parallel!)
static inline ImVec2 Intersection(const ImVec2& a1, const ImVec2& a2, const ImVec2& b1, const ImVec2& b2) {
float v1 = (a1.x * a2.y - a1.y * a2.x); float v2 = (b1.x * b2.y - b1.y * b2.x);
float v3 = ((a1.x - a2.x) * (b1.y - b2.y) - (a1.y - a2.y) * (b1.x - b2.x));
return ImVec2((v1 * (b1.x - b2.x) - v2 * (a1.x - a2.x)) / v3, (v1 * (b1.y - b2.y) - v2 * (a1.y - a2.y)) / v3);
}
// Fills a buffer with n samples linear interpolated from vmin to vmax
template <typename T>
void FillRange(ImVector<T>& buffer, int n, T vmin, T vmax) {
buffer.resize(n);
T step = (vmax - vmin) / (n - 1);
for (int i = 0; i < n; ++i) {
buffer[i] = vmin + i * step;
}
}
// Calculate histogram bin counts and widths
template <typename T>
static inline void CalculateBins(const T* values, int count, ImPlotBin meth, const ImPlotRange& range, int& bins_out, double& width_out) {
switch (meth) {
case ImPlotBin_Sqrt:
bins_out = (int)ceil(sqrt(count));
break;
case ImPlotBin_Sturges:
bins_out = (int)ceil(1.0 + log2(count));
break;
case ImPlotBin_Rice:
bins_out = (int)ceil(2 * cbrt(count));
break;
case ImPlotBin_Scott:
width_out = 3.49 * ImStdDev(values, count) / cbrt(count);
bins_out = (int)round(range.Size() / width_out);
break;
}
width_out = range.Size() / bins_out;
}
//-----------------------------------------------------------------------------
// Time Utils
//-----------------------------------------------------------------------------
// Returns true if year is leap year (366 days long)
static inline bool IsLeapYear(int year) {
return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0);
}
// Returns the number of days in a month, accounting for Feb. leap years. #month is zero indexed.
static inline int GetDaysInMonth(int year, int month) {
static const int days[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
return days[month] + (int)(month == 1 && IsLeapYear(year));
}
// Make a UNIX timestamp from a tm struct expressed in UTC time (i.e. GMT timezone).
IMPLOT_API ImPlotTime MkGmtTime(struct tm *ptm);
// Make a tm struct expressed in UTC time (i.e. GMT timezone) from a UNIX timestamp.
IMPLOT_API tm* GetGmtTime(const ImPlotTime& t, tm* ptm);
// Make a UNIX timestamp from a tm struct expressed in local time.
IMPLOT_API ImPlotTime MkLocTime(struct tm *ptm);
// Make a tm struct expressed in local time from a UNIX timestamp.
IMPLOT_API tm* GetLocTime(const ImPlotTime& t, tm* ptm);
// NB: The following functions only work if there is a current ImPlotContext because the
// internal tm struct is owned by the context! They are aware of ImPlotStyle.UseLocalTime.
// Make a timestamp from time components.
// year[1970-3000], month[0-11], day[1-31], hour[0-23], min[0-59], sec[0-59], us[0,999999]
IMPLOT_API ImPlotTime MakeTime(int year, int month = 0, int day = 1, int hour = 0, int min = 0, int sec = 0, int us = 0);
// Get year component from timestamp [1970-3000]
IMPLOT_API int GetYear(const ImPlotTime& t);
// Adds or subtracts time from a timestamp. #count > 0 to add, < 0 to subtract.
IMPLOT_API ImPlotTime AddTime(const ImPlotTime& t, ImPlotTimeUnit unit, int count);
// Rounds a timestamp down to nearest unit.
IMPLOT_API ImPlotTime FloorTime(const ImPlotTime& t, ImPlotTimeUnit unit);
// Rounds a timestamp up to the nearest unit.
IMPLOT_API ImPlotTime CeilTime(const ImPlotTime& t, ImPlotTimeUnit unit);
// Rounds a timestamp up or down to the nearest unit.
IMPLOT_API ImPlotTime RoundTime(const ImPlotTime& t, ImPlotTimeUnit unit);
// Combines the date of one timestamp with the time-of-day of another timestamp.
IMPLOT_API ImPlotTime CombineDateTime(const ImPlotTime& date_part, const ImPlotTime& time_part);
// Formats the time part of timestamp t into a buffer according to #fmt
IMPLOT_API int FormatTime(const ImPlotTime& t, char* buffer, int size, ImPlotTimeFmt fmt, bool use_24_hr_clk);
// Formats the date part of timestamp t into a buffer according to #fmt
IMPLOT_API int FormatDate(const ImPlotTime& t, char* buffer, int size, ImPlotDateFmt fmt, bool use_iso_8601);
// Formats the time and/or date parts of a timestamp t into a buffer according to #fmt
IMPLOT_API int FormatDateTime(const ImPlotTime& t, char* buffer, int size, ImPlotDateTimeSpec fmt);
// Shows a date picker widget block (year/month/day).
// #level = 0 for day, 1 for month, 2 for year. Modified by user interaction.
// #t will be set when a day is clicked and the function will return true.
// #t1 and #t2 are optional dates to highlight.
IMPLOT_API bool ShowDatePicker(const char* id, int* level, ImPlotTime* t, const ImPlotTime* t1 = NULL, const ImPlotTime* t2 = NULL);
// Shows a time picker widget block (hour/min/sec).
// #t will be set when a new hour, minute, or sec is selected or am/pm is toggled, and the function will return true.
IMPLOT_API bool ShowTimePicker(const char* id, ImPlotTime* t);
//-----------------------------------------------------------------------------
// [SECTION] Transforms
//-----------------------------------------------------------------------------
static inline double TransformForward_Log10(double v, void*) {
v = v <= 0.0 ? DBL_MIN : v;
return ImLog10(v);
}
static inline double TransformInverse_Log10(double v, void*) {
return ImPow(10, v);
}
static inline double TransformForward_SymLog(double v, void*) {
return 2.0 * ImAsinh(v / 2.0);
}
static inline double TransformInverse_SymLog(double v, void*) {
return 2.0 * ImSinh(v / 2.0);
}
static inline double TransformForward_Logit(double v, void*) {
v = ImClamp(v, DBL_MIN, 1.0 - DBL_EPSILON);
return ImLog10(v / (1 - v));
}
static inline double TransformInverse_Logit(double v, void*) {
return 1.0 / (1.0 + ImPow(10,-v));
}
//-----------------------------------------------------------------------------
// [SECTION] Formatters
//-----------------------------------------------------------------------------
static inline int Formatter_Default(double value, char* buff, int size, void* data) {
char* fmt = (char*)data;
return ImFormatString(buff, size, fmt, value);
}
static inline int Formatter_Logit(double value, char* buff, int size, void*) {
if (value == 0.5)
return ImFormatString(buff,size,"1/2");
else if (value < 0.5)
return ImFormatString(buff,size,"%g", value);
else
return ImFormatString(buff,size,"1 - %g", 1 - value);
}
struct Formatter_Time_Data {
ImPlotTime Time;
ImPlotDateTimeSpec Spec;
ImPlotFormatter UserFormatter;
void* UserFormatterData;
};
static inline int Formatter_Time(double, char* buff, int size, void* data) {
Formatter_Time_Data* ftd = (Formatter_Time_Data*)data;
return FormatDateTime(ftd->Time, buff, size, ftd->Spec);
}
//------------------------------------------------------------------------------
// [SECTION] Locator
//------------------------------------------------------------------------------
void Locator_Default(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data);
void Locator_Time(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data);
void Locator_Log10(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data);
void Locator_SymLog(ImPlotTicker& ticker, const ImPlotRange& range, float pixels, bool vertical, ImPlotFormatter formatter, void* formatter_data);
} // namespace ImPlot
|
0 | repos/zig_vulkan/deps/zgui/libs | repos/zig_vulkan/deps/zgui/libs/imgui/imgui_internal.h | // dear imgui, v1.89.4
// (internal structures/api)
// You may use this file to debug, understand or extend Dear ImGui features but we don't provide any guarantee of forward compatibility.
// To implement maths operators for ImVec2 (disabled by default to not conflict with using IM_VEC2_CLASS_EXTRA with your own math types+operators), use:
/*
#define IMGUI_DEFINE_MATH_OPERATORS
#include "imgui_internal.h"
*/
/*
Index of this file:
// [SECTION] Header mess
// [SECTION] Forward declarations
// [SECTION] Context pointer
// [SECTION] STB libraries includes
// [SECTION] Macros
// [SECTION] Generic helpers
// [SECTION] ImDrawList support
// [SECTION] Widgets support: flags, enums, data structures
// [SECTION] Inputs support
// [SECTION] Clipper support
// [SECTION] Navigation support
// [SECTION] Columns support
// [SECTION] Multi-select support
// [SECTION] Docking support
// [SECTION] Viewport support
// [SECTION] Settings support
// [SECTION] Localization support
// [SECTION] Metrics, Debug tools
// [SECTION] Generic context hooks
// [SECTION] ImGuiContext (main imgui context)
// [SECTION] ImGuiWindowTempData, ImGuiWindow
// [SECTION] Tab bar, Tab item support
// [SECTION] Table support
// [SECTION] ImGui internal API
// [SECTION] ImFontAtlas internal API
// [SECTION] Test Engine specific hooks (imgui_test_engine)
*/
#pragma once
#ifndef IMGUI_DISABLE
//-----------------------------------------------------------------------------
// [SECTION] Header mess
//-----------------------------------------------------------------------------
#ifndef IMGUI_VERSION
#include "imgui.h"
#endif
#include <stdio.h> // FILE*, sscanf
#include <stdlib.h> // NULL, malloc, free, qsort, atoi, atof
#include <math.h> // sqrtf, fabsf, fmodf, powf, floorf, ceilf, cosf, sinf
#include <limits.h> // INT_MIN, INT_MAX
// Enable SSE intrinsics if available
#if (defined __SSE__ || defined __x86_64__ || defined _M_X64 || (defined(_M_IX86_FP) && (_M_IX86_FP >= 1))) && !defined(IMGUI_DISABLE_SSE)
#define IMGUI_ENABLE_SSE
#include <immintrin.h>
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable: 4251) // class 'xxx' needs to have dll-interface to be used by clients of struct 'xxx' // when IMGUI_API is set to__declspec(dllexport)
#pragma warning (disable: 26812) // The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
#pragma warning (disable: 26495) // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
#pragma warning (disable: 5054) // operator '|': deprecated between enumerations of different types
#endif
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx'
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok, for ImFloorSigned()
#pragma clang diagnostic ignored "-Wunused-function" // for stb_textedit.h
#pragma clang diagnostic ignored "-Wmissing-prototypes" // for stb_textedit.h
#pragma clang diagnostic ignored "-Wold-style-cast"
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
#pragma clang diagnostic ignored "-Wdouble-promotion"
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#pragma clang diagnostic ignored "-Wmissing-noreturn" // warning: function 'xxx' could be declared with attribute 'noreturn'
#elif defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif
// In 1.89.4, we moved the implementation of "courtesy maths operators" from imgui_internal.h in imgui.h
// As they are frequently requested, we do not want to encourage to many people using imgui_internal.h
#if defined(IMGUI_DEFINE_MATH_OPERATORS) && !defined(IMGUI_DEFINE_MATH_OPERATORS_IMPLEMENTED)
#error Please '#define IMGUI_DEFINE_MATH_OPERATORS' _BEFORE_ including imgui.h!
#endif
// Legacy defines
#ifdef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS // Renamed in 1.74
#error Use IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
#endif
#ifdef IMGUI_DISABLE_MATH_FUNCTIONS // Renamed in 1.74
#error Use IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
#endif
// Enable stb_truetype by default unless FreeType is enabled.
// You can compile with both by defining both IMGUI_ENABLE_FREETYPE and IMGUI_ENABLE_STB_TRUETYPE together.
#ifndef IMGUI_ENABLE_FREETYPE
#define IMGUI_ENABLE_STB_TRUETYPE
#endif
//-----------------------------------------------------------------------------
// [SECTION] Forward declarations
//-----------------------------------------------------------------------------
struct ImBitVector; // Store 1-bit per value
struct ImRect; // An axis-aligned rectangle (2 points)
struct ImDrawDataBuilder; // Helper to build a ImDrawData instance
struct ImDrawListSharedData; // Data shared between all ImDrawList instances
struct ImGuiColorMod; // Stacked color modifier, backup of modified data so we can restore it
struct ImGuiContext; // Main Dear ImGui context
struct ImGuiContextHook; // Hook for extensions like ImGuiTestEngine
struct ImGuiDataVarInfo; // Variable information (e.g. to avoid style variables from an enum)
struct ImGuiDataTypeInfo; // Type information associated to a ImGuiDataType enum
struct ImGuiGroupData; // Stacked storage data for BeginGroup()/EndGroup()
struct ImGuiInputTextState; // Internal state of the currently focused/edited text input box
struct ImGuiLastItemData; // Status storage for last submitted items
struct ImGuiLocEntry; // A localization entry.
struct ImGuiMenuColumns; // Simple column measurement, currently used for MenuItem() only
struct ImGuiNavItemData; // Result of a gamepad/keyboard directional navigation move query result
struct ImGuiMetricsConfig; // Storage for ShowMetricsWindow() and DebugNodeXXX() functions
struct ImGuiNextWindowData; // Storage for SetNextWindow** functions
struct ImGuiNextItemData; // Storage for SetNextItem** functions
struct ImGuiOldColumnData; // Storage data for a single column for legacy Columns() api
struct ImGuiOldColumns; // Storage data for a columns set for legacy Columns() api
struct ImGuiPopupData; // Storage for current popup stack
struct ImGuiSettingsHandler; // Storage for one type registered in the .ini file
struct ImGuiStackSizes; // Storage of stack sizes for debugging/asserting
struct ImGuiStyleMod; // Stacked style modifier, backup of modified data so we can restore it
struct ImGuiTabBar; // Storage for a tab bar
struct ImGuiTabItem; // Storage for a tab item (within a tab bar)
struct ImGuiTable; // Storage for a table
struct ImGuiTableColumn; // Storage for one column of a table
struct ImGuiTableInstanceData; // Storage for one instance of a same table
struct ImGuiTableTempData; // Temporary storage for one table (one per table in the stack), shared between tables.
struct ImGuiTableSettings; // Storage for a table .ini settings
struct ImGuiTableColumnsSettings; // Storage for a column .ini settings
struct ImGuiWindow; // Storage for one window
struct ImGuiWindowTempData; // Temporary storage for one window (that's the data which in theory we could ditch at the end of the frame, in practice we currently keep it for each window)
struct ImGuiWindowSettings; // Storage for a window .ini settings (we keep one of those even if the actual window wasn't instanced during this session)
// Enumerations
// Use your programming IDE "Go to definition" facility on the names of the center columns to find the actual flags/enum lists.
enum ImGuiLocKey : int; // -> enum ImGuiLocKey // Enum: a localization entry for translation.
typedef int ImGuiLayoutType; // -> enum ImGuiLayoutType_ // Enum: Horizontal or vertical
// Flags
typedef int ImGuiActivateFlags; // -> enum ImGuiActivateFlags_ // Flags: for navigation/focus function (will be for ActivateItem() later)
typedef int ImGuiDebugLogFlags; // -> enum ImGuiDebugLogFlags_ // Flags: for ShowDebugLogWindow(), g.DebugLogFlags
typedef int ImGuiInputFlags; // -> enum ImGuiInputFlags_ // Flags: for IsKeyPressed(), IsMouseClicked(), SetKeyOwner(), SetItemKeyOwner() etc.
typedef int ImGuiItemFlags; // -> enum ImGuiItemFlags_ // Flags: for PushItemFlag(), g.LastItemData.InFlags
typedef int ImGuiItemStatusFlags; // -> enum ImGuiItemStatusFlags_ // Flags: for g.LastItemData.StatusFlags
typedef int ImGuiOldColumnFlags; // -> enum ImGuiOldColumnFlags_ // Flags: for BeginColumns()
typedef int ImGuiNavHighlightFlags; // -> enum ImGuiNavHighlightFlags_ // Flags: for RenderNavHighlight()
typedef int ImGuiNavMoveFlags; // -> enum ImGuiNavMoveFlags_ // Flags: for navigation requests
typedef int ImGuiNextItemDataFlags; // -> enum ImGuiNextItemDataFlags_ // Flags: for SetNextItemXXX() functions
typedef int ImGuiNextWindowDataFlags; // -> enum ImGuiNextWindowDataFlags_// Flags: for SetNextWindowXXX() functions
typedef int ImGuiScrollFlags; // -> enum ImGuiScrollFlags_ // Flags: for ScrollToItem() and navigation requests
typedef int ImGuiSeparatorFlags; // -> enum ImGuiSeparatorFlags_ // Flags: for SeparatorEx()
typedef int ImGuiTextFlags; // -> enum ImGuiTextFlags_ // Flags: for TextEx()
typedef int ImGuiTooltipFlags; // -> enum ImGuiTooltipFlags_ // Flags: for BeginTooltipEx()
typedef void (*ImGuiErrorLogCallback)(void* user_data, const char* fmt, ...);
//-----------------------------------------------------------------------------
// [SECTION] Context pointer
// See implementation of this variable in imgui.cpp for comments and details.
//-----------------------------------------------------------------------------
#ifndef GImGui
extern IMGUI_API ImGuiContext* GImGui; // Current implicit context pointer
#endif
//-------------------------------------------------------------------------
// [SECTION] STB libraries includes
//-------------------------------------------------------------------------
namespace ImStb
{
#undef STB_TEXTEDIT_STRING
#undef STB_TEXTEDIT_CHARTYPE
#define STB_TEXTEDIT_STRING ImGuiInputTextState
#define STB_TEXTEDIT_CHARTYPE ImWchar
#define STB_TEXTEDIT_GETWIDTH_NEWLINE (-1.0f)
#define STB_TEXTEDIT_UNDOSTATECOUNT 99
#define STB_TEXTEDIT_UNDOCHARCOUNT 999
#include "imstb_textedit.h"
} // namespace ImStb
//-----------------------------------------------------------------------------
// [SECTION] Macros
//-----------------------------------------------------------------------------
// Debug Printing Into TTY
// (since IMGUI_VERSION_NUM >= 18729: IMGUI_DEBUG_LOG was reworked into IMGUI_DEBUG_PRINTF (and removed framecount from it). If you were using a #define IMGUI_DEBUG_LOG please rename)
#ifndef IMGUI_DEBUG_PRINTF
#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
#define IMGUI_DEBUG_PRINTF(_FMT,...) printf(_FMT, __VA_ARGS__)
#else
#define IMGUI_DEBUG_PRINTF(_FMT,...) ((void)0)
#endif
#endif
// Debug Logging for ShowDebugLogWindow(). This is designed for relatively rare events so please don't spam.
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
#define IMGUI_DEBUG_LOG(...) ImGui::DebugLog(__VA_ARGS__)
#else
#define IMGUI_DEBUG_LOG(...) ((void)0)
#endif
#define IMGUI_DEBUG_LOG_ACTIVEID(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventActiveId) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_FOCUS(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventFocus) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_POPUP(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventPopup) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_NAV(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventNav) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_CLIPPER(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventClipper) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_IO(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventIO) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
// Static Asserts
#define IM_STATIC_ASSERT(_COND) static_assert(_COND, "")
// "Paranoid" Debug Asserts are meant to only be enabled during specific debugging/work, otherwise would slow down the code too much.
// We currently don't have many of those so the effect is currently negligible, but onward intent to add more aggressive ones in the code.
//#define IMGUI_DEBUG_PARANOID
#ifdef IMGUI_DEBUG_PARANOID
#define IM_ASSERT_PARANOID(_EXPR) IM_ASSERT(_EXPR)
#else
#define IM_ASSERT_PARANOID(_EXPR)
#endif
// Error handling
// Down the line in some frameworks/languages we would like to have a way to redirect those to the programmer and recover from more faults.
#ifndef IM_ASSERT_USER_ERROR
#define IM_ASSERT_USER_ERROR(_EXP,_MSG) IM_ASSERT((_EXP) && _MSG) // Recoverable User Error
#endif
// Misc Macros
#define IM_PI 3.14159265358979323846f
#ifdef _WIN32
#define IM_NEWLINE "\r\n" // Play it nice with Windows users (Update: since 2018-05, Notepad finally appears to support Unix-style carriage returns!)
#else
#define IM_NEWLINE "\n"
#endif
#ifndef IM_TABSIZE // Until we move this to runtime and/or add proper tab support, at least allow users to compile-time override
#define IM_TABSIZE (4)
#endif
#define IM_MEMALIGN(_OFF,_ALIGN) (((_OFF) + ((_ALIGN) - 1)) & ~((_ALIGN) - 1)) // Memory align e.g. IM_ALIGN(0,4)=0, IM_ALIGN(1,4)=4, IM_ALIGN(4,4)=4, IM_ALIGN(5,4)=8
#define IM_F32_TO_INT8_UNBOUND(_VAL) ((int)((_VAL) * 255.0f + ((_VAL)>=0 ? 0.5f : -0.5f))) // Unsaturated, for display purpose
#define IM_F32_TO_INT8_SAT(_VAL) ((int)(ImSaturate(_VAL) * 255.0f + 0.5f)) // Saturated, always output 0..255
#define IM_FLOOR(_VAL) ((float)(int)(_VAL)) // ImFloor() is not inlined in MSVC debug builds
#define IM_ROUND(_VAL) ((float)(int)((_VAL) + 0.5f)) //
// Enforce cdecl calling convention for functions called by the standard library, in case compilation settings changed the default to e.g. __vectorcall
#ifdef _MSC_VER
#define IMGUI_CDECL __cdecl
#else
#define IMGUI_CDECL
#endif
// Warnings
#if defined(_MSC_VER) && !defined(__clang__)
#define IM_MSVC_WARNING_SUPPRESS(XXXX) __pragma(warning(suppress: XXXX))
#else
#define IM_MSVC_WARNING_SUPPRESS(XXXX)
#endif
// Debug Tools
// Use 'Metrics/Debugger->Tools->Item Picker' to break into the call-stack of a specific item.
// This will call IM_DEBUG_BREAK() which you may redefine yourself. See https://github.com/scottt/debugbreak for more reference.
#ifndef IM_DEBUG_BREAK
#if defined (_MSC_VER)
#define IM_DEBUG_BREAK() __debugbreak()
#elif defined(__clang__)
#define IM_DEBUG_BREAK() __builtin_debugtrap()
#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#define IM_DEBUG_BREAK() __asm__ volatile("int $0x03")
#elif defined(__GNUC__) && defined(__thumb__)
#define IM_DEBUG_BREAK() __asm__ volatile(".inst 0xde01")
#elif defined(__GNUC__) && defined(__arm__) && !defined(__thumb__)
#define IM_DEBUG_BREAK() __asm__ volatile(".inst 0xe7f001f0");
#else
#define IM_DEBUG_BREAK() IM_ASSERT(0) // It is expected that you define IM_DEBUG_BREAK() into something that will break nicely in a debugger!
#endif
#endif // #ifndef IM_DEBUG_BREAK
//-----------------------------------------------------------------------------
// [SECTION] Generic helpers
// Note that the ImXXX helpers functions are lower-level than ImGui functions.
// ImGui functions or the ImGui context are never called/used from other ImXXX functions.
//-----------------------------------------------------------------------------
// - Helpers: Hashing
// - Helpers: Sorting
// - Helpers: Bit manipulation
// - Helpers: String
// - Helpers: Formatting
// - Helpers: UTF-8 <> wchar conversions
// - Helpers: ImVec2/ImVec4 operators
// - Helpers: Maths
// - Helpers: Geometry
// - Helper: ImVec1
// - Helper: ImVec2ih
// - Helper: ImRect
// - Helper: ImBitArray
// - Helper: ImBitVector
// - Helper: ImSpan<>, ImSpanAllocator<>
// - Helper: ImPool<>
// - Helper: ImChunkStream<>
// - Helper: ImGuiTextIndex
//-----------------------------------------------------------------------------
// Helpers: Hashing
IMGUI_API ImGuiID ImHashData(const void* data, size_t data_size, ImGuiID seed = 0);
IMGUI_API ImGuiID ImHashStr(const char* data, size_t data_size = 0, ImGuiID seed = 0);
// Helpers: Sorting
#ifndef ImQsort
static inline void ImQsort(void* base, size_t count, size_t size_of_element, int(IMGUI_CDECL *compare_func)(void const*, void const*)) { if (count > 1) qsort(base, count, size_of_element, compare_func); }
#endif
// Helpers: Color Blending
IMGUI_API ImU32 ImAlphaBlendColors(ImU32 col_a, ImU32 col_b);
// Helpers: Bit manipulation
static inline bool ImIsPowerOfTwo(int v) { return v != 0 && (v & (v - 1)) == 0; }
static inline bool ImIsPowerOfTwo(ImU64 v) { return v != 0 && (v & (v - 1)) == 0; }
static inline int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
// Helpers: String
IMGUI_API int ImStricmp(const char* str1, const char* str2);
IMGUI_API int ImStrnicmp(const char* str1, const char* str2, size_t count);
IMGUI_API void ImStrncpy(char* dst, const char* src, size_t count);
IMGUI_API char* ImStrdup(const char* str);
IMGUI_API char* ImStrdupcpy(char* dst, size_t* p_dst_size, const char* str);
IMGUI_API const char* ImStrchrRange(const char* str_begin, const char* str_end, char c);
IMGUI_API int ImStrlenW(const ImWchar* str);
IMGUI_API const char* ImStreolRange(const char* str, const char* str_end); // End end-of-line
IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line
IMGUI_API const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
IMGUI_API void ImStrTrimBlanks(char* str);
IMGUI_API const char* ImStrSkipBlank(const char* str);
IM_MSVC_RUNTIME_CHECKS_OFF
static inline char ImToUpper(char c) { return (c >= 'a' && c <= 'z') ? c &= ~32 : c; }
static inline bool ImCharIsBlankA(char c) { return c == ' ' || c == '\t'; }
static inline bool ImCharIsBlankW(unsigned int c) { return c == ' ' || c == '\t' || c == 0x3000; }
IM_MSVC_RUNTIME_CHECKS_RESTORE
// Helpers: Formatting
IMGUI_API int ImFormatString(char* buf, size_t buf_size, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args) IM_FMTLIST(3);
IMGUI_API void ImFormatStringToTempBuffer(const char** out_buf, const char** out_buf_end, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API void ImFormatStringToTempBufferV(const char** out_buf, const char** out_buf_end, const char* fmt, va_list args) IM_FMTLIST(3);
IMGUI_API const char* ImParseFormatFindStart(const char* format);
IMGUI_API const char* ImParseFormatFindEnd(const char* format);
IMGUI_API const char* ImParseFormatTrimDecorations(const char* format, char* buf, size_t buf_size);
IMGUI_API void ImParseFormatSanitizeForPrinting(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
IMGUI_API const char* ImParseFormatSanitizeForScanning(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
IMGUI_API int ImParseFormatPrecision(const char* format, int default_value);
// Helpers: UTF-8 <> wchar conversions
IMGUI_API const char* ImTextCharToUtf8(char out_buf[5], unsigned int c); // return out_buf
IMGUI_API int ImTextStrToUtf8(char* out_buf, int out_buf_size, const ImWchar* in_text, const ImWchar* in_text_end); // return output UTF-8 bytes count
IMGUI_API int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end); // read one character. return input UTF-8 bytes count
IMGUI_API int ImTextStrFromUtf8(ImWchar* out_buf, int out_buf_size, const char* in_text, const char* in_text_end, const char** in_remaining = NULL); // return input UTF-8 bytes count
IMGUI_API int ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end); // return number of UTF-8 code-points (NOT bytes count)
IMGUI_API int ImTextCountUtf8BytesFromChar(const char* in_text, const char* in_text_end); // return number of bytes to express one char in UTF-8
IMGUI_API int ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end); // return number of bytes to express string in UTF-8
// Helpers: File System
#ifdef IMGUI_DISABLE_FILE_FUNCTIONS
#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
typedef void* ImFileHandle;
static inline ImFileHandle ImFileOpen(const char*, const char*) { return NULL; }
static inline bool ImFileClose(ImFileHandle) { return false; }
static inline ImU64 ImFileGetSize(ImFileHandle) { return (ImU64)-1; }
static inline ImU64 ImFileRead(void*, ImU64, ImU64, ImFileHandle) { return 0; }
static inline ImU64 ImFileWrite(const void*, ImU64, ImU64, ImFileHandle) { return 0; }
#endif
#ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
typedef FILE* ImFileHandle;
IMGUI_API ImFileHandle ImFileOpen(const char* filename, const char* mode);
IMGUI_API bool ImFileClose(ImFileHandle file);
IMGUI_API ImU64 ImFileGetSize(ImFileHandle file);
IMGUI_API ImU64 ImFileRead(void* data, ImU64 size, ImU64 count, ImFileHandle file);
IMGUI_API ImU64 ImFileWrite(const void* data, ImU64 size, ImU64 count, ImFileHandle file);
#else
#define IMGUI_DISABLE_TTY_FUNCTIONS // Can't use stdout, fflush if we are not using default file functions
#endif
IMGUI_API void* ImFileLoadToMemory(const char* filename, const char* mode, size_t* out_file_size = NULL, int padding_bytes = 0);
// Helpers: Maths
IM_MSVC_RUNTIME_CHECKS_OFF
// - Wrapper for standard libs functions. (Note that imgui_demo.cpp does _not_ use them to keep the code easy to copy)
#ifndef IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
#define ImFabs(X) fabsf(X)
#define ImSqrt(X) sqrtf(X)
#define ImFmod(X, Y) fmodf((X), (Y))
#define ImCos(X) cosf(X)
#define ImSin(X) sinf(X)
#define ImAcos(X) acosf(X)
#define ImAtan2(Y, X) atan2f((Y), (X))
#define ImAtof(STR) atof(STR)
//#define ImFloorStd(X) floorf(X) // We use our own, see ImFloor() and ImFloorSigned()
#define ImCeil(X) ceilf(X)
static inline float ImPow(float x, float y) { return powf(x, y); } // DragBehaviorT/SliderBehaviorT uses ImPow with either float/double and need the precision
static inline double ImPow(double x, double y) { return pow(x, y); }
static inline float ImLog(float x) { return logf(x); } // DragBehaviorT/SliderBehaviorT uses ImLog with either float/double and need the precision
static inline double ImLog(double x) { return log(x); }
static inline int ImAbs(int x) { return x < 0 ? -x : x; }
static inline float ImAbs(float x) { return fabsf(x); }
static inline double ImAbs(double x) { return fabs(x); }
static inline float ImSign(float x) { return (x < 0.0f) ? -1.0f : (x > 0.0f) ? 1.0f : 0.0f; } // Sign operator - returns -1, 0 or 1 based on sign of argument
static inline double ImSign(double x) { return (x < 0.0) ? -1.0 : (x > 0.0) ? 1.0 : 0.0; }
#ifdef IMGUI_ENABLE_SSE
static inline float ImRsqrt(float x) { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); }
#else
static inline float ImRsqrt(float x) { return 1.0f / sqrtf(x); }
#endif
static inline double ImRsqrt(double x) { return 1.0 / sqrt(x); }
#endif
// - ImMin/ImMax/ImClamp/ImLerp/ImSwap are used by widgets which support variety of types: signed/unsigned int/long long float/double
// (Exceptionally using templates here but we could also redefine them for those types)
template<typename T> static inline T ImMin(T lhs, T rhs) { return lhs < rhs ? lhs : rhs; }
template<typename T> static inline T ImMax(T lhs, T rhs) { return lhs >= rhs ? lhs : rhs; }
template<typename T> static inline T ImClamp(T v, T mn, T mx) { return (v < mn) ? mn : (v > mx) ? mx : v; }
template<typename T> static inline T ImLerp(T a, T b, float t) { return (T)(a + (b - a) * t); }
template<typename T> static inline void ImSwap(T& a, T& b) { T tmp = a; a = b; b = tmp; }
template<typename T> static inline T ImAddClampOverflow(T a, T b, T mn, T mx) { if (b < 0 && (a < mn - b)) return mn; if (b > 0 && (a > mx - b)) return mx; return a + b; }
template<typename T> static inline T ImSubClampOverflow(T a, T b, T mn, T mx) { if (b > 0 && (a < mn + b)) return mn; if (b < 0 && (a > mx + b)) return mx; return a - b; }
// - Misc maths helpers
static inline ImVec2 ImMin(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x < rhs.x ? lhs.x : rhs.x, lhs.y < rhs.y ? lhs.y : rhs.y); }
static inline ImVec2 ImMax(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x >= rhs.x ? lhs.x : rhs.x, lhs.y >= rhs.y ? lhs.y : rhs.y); }
static inline ImVec2 ImClamp(const ImVec2& v, const ImVec2& mn, ImVec2 mx) { return ImVec2((v.x < mn.x) ? mn.x : (v.x > mx.x) ? mx.x : v.x, (v.y < mn.y) ? mn.y : (v.y > mx.y) ? mx.y : v.y); }
static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, float t) { return ImVec2(a.x + (b.x - a.x) * t, a.y + (b.y - a.y) * t); }
static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, const ImVec2& t) { return ImVec2(a.x + (b.x - a.x) * t.x, a.y + (b.y - a.y) * t.y); }
static inline ImVec4 ImLerp(const ImVec4& a, const ImVec4& b, float t) { return ImVec4(a.x + (b.x - a.x) * t, a.y + (b.y - a.y) * t, a.z + (b.z - a.z) * t, a.w + (b.w - a.w) * t); }
static inline float ImSaturate(float f) { return (f < 0.0f) ? 0.0f : (f > 1.0f) ? 1.0f : f; }
static inline float ImLengthSqr(const ImVec2& lhs) { return (lhs.x * lhs.x) + (lhs.y * lhs.y); }
static inline float ImLengthSqr(const ImVec4& lhs) { return (lhs.x * lhs.x) + (lhs.y * lhs.y) + (lhs.z * lhs.z) + (lhs.w * lhs.w); }
static inline float ImInvLength(const ImVec2& lhs, float fail_value) { float d = (lhs.x * lhs.x) + (lhs.y * lhs.y); if (d > 0.0f) return ImRsqrt(d); return fail_value; }
static inline float ImFloor(float f) { return (float)(int)(f); }
static inline float ImFloorSigned(float f) { return (float)((f >= 0 || (float)(int)f == f) ? (int)f : (int)f - 1); } // Decent replacement for floorf()
static inline ImVec2 ImFloor(const ImVec2& v) { return ImVec2((float)(int)(v.x), (float)(int)(v.y)); }
static inline ImVec2 ImFloorSigned(const ImVec2& v) { return ImVec2(ImFloorSigned(v.x), ImFloorSigned(v.y)); }
static inline int ImModPositive(int a, int b) { return (a + b) % b; }
static inline float ImDot(const ImVec2& a, const ImVec2& b) { return a.x * b.x + a.y * b.y; }
static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a) { return ImVec2(v.x * cos_a - v.y * sin_a, v.x * sin_a + v.y * cos_a); }
static inline float ImLinearSweep(float current, float target, float speed) { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
static inline bool ImIsFloatAboveGuaranteedIntegerPrecision(float f) { return f <= -16777216 || f >= 16777216; }
static inline float ImExponentialMovingAverage(float avg, float sample, int n) { avg -= avg / n; avg += sample / n; return avg; }
IM_MSVC_RUNTIME_CHECKS_RESTORE
// Helpers: Geometry
IMGUI_API ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t);
IMGUI_API ImVec2 ImBezierCubicClosestPoint(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, int num_segments); // For curves with explicit number of segments
IMGUI_API ImVec2 ImBezierCubicClosestPointCasteljau(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, float tess_tol);// For auto-tessellated curves you can use tess_tol = style.CurveTessellationTol
IMGUI_API ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t);
IMGUI_API ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p);
IMGUI_API bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
IMGUI_API ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
IMGUI_API void ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w);
inline float ImTriangleArea(const ImVec2& a, const ImVec2& b, const ImVec2& c) { return ImFabs((a.x * (b.y - c.y)) + (b.x * (c.y - a.y)) + (c.x * (a.y - b.y))) * 0.5f; }
IMGUI_API ImGuiDir ImGetDirQuadrantFromDelta(float dx, float dy);
// Helper: ImVec1 (1D vector)
// (this odd construct is used to facilitate the transition between 1D and 2D, and the maintenance of some branches/patches)
IM_MSVC_RUNTIME_CHECKS_OFF
struct ImVec1
{
float x;
constexpr ImVec1() : x(0.0f) { }
constexpr ImVec1(float _x) : x(_x) { }
};
// Helper: ImVec2ih (2D vector, half-size integer, for long-term packed storage)
struct ImVec2ih
{
short x, y;
constexpr ImVec2ih() : x(0), y(0) {}
constexpr ImVec2ih(short _x, short _y) : x(_x), y(_y) {}
constexpr explicit ImVec2ih(const ImVec2& rhs) : x((short)rhs.x), y((short)rhs.y) {}
};
// Helper: ImRect (2D axis aligned bounding-box)
// NB: we can't rely on ImVec2 math operators being available here!
struct IMGUI_API ImRect
{
ImVec2 Min; // Upper-left
ImVec2 Max; // Lower-right
constexpr ImRect() : Min(0.0f, 0.0f), Max(0.0f, 0.0f) {}
constexpr ImRect(const ImVec2& min, const ImVec2& max) : Min(min), Max(max) {}
constexpr ImRect(const ImVec4& v) : Min(v.x, v.y), Max(v.z, v.w) {}
constexpr ImRect(float x1, float y1, float x2, float y2) : Min(x1, y1), Max(x2, y2) {}
ImVec2 GetCenter() const { return ImVec2((Min.x + Max.x) * 0.5f, (Min.y + Max.y) * 0.5f); }
ImVec2 GetSize() const { return ImVec2(Max.x - Min.x, Max.y - Min.y); }
float GetWidth() const { return Max.x - Min.x; }
float GetHeight() const { return Max.y - Min.y; }
float GetArea() const { return (Max.x - Min.x) * (Max.y - Min.y); }
ImVec2 GetTL() const { return Min; } // Top-left
ImVec2 GetTR() const { return ImVec2(Max.x, Min.y); } // Top-right
ImVec2 GetBL() const { return ImVec2(Min.x, Max.y); } // Bottom-left
ImVec2 GetBR() const { return Max; } // Bottom-right
bool Contains(const ImVec2& p) const { return p.x >= Min.x && p.y >= Min.y && p.x < Max.x && p.y < Max.y; }
bool Contains(const ImRect& r) const { return r.Min.x >= Min.x && r.Min.y >= Min.y && r.Max.x <= Max.x && r.Max.y <= Max.y; }
bool Overlaps(const ImRect& r) const { return r.Min.y < Max.y && r.Max.y > Min.y && r.Min.x < Max.x && r.Max.x > Min.x; }
void Add(const ImVec2& p) { if (Min.x > p.x) Min.x = p.x; if (Min.y > p.y) Min.y = p.y; if (Max.x < p.x) Max.x = p.x; if (Max.y < p.y) Max.y = p.y; }
void Add(const ImRect& r) { if (Min.x > r.Min.x) Min.x = r.Min.x; if (Min.y > r.Min.y) Min.y = r.Min.y; if (Max.x < r.Max.x) Max.x = r.Max.x; if (Max.y < r.Max.y) Max.y = r.Max.y; }
void Expand(const float amount) { Min.x -= amount; Min.y -= amount; Max.x += amount; Max.y += amount; }
void Expand(const ImVec2& amount) { Min.x -= amount.x; Min.y -= amount.y; Max.x += amount.x; Max.y += amount.y; }
void Translate(const ImVec2& d) { Min.x += d.x; Min.y += d.y; Max.x += d.x; Max.y += d.y; }
void TranslateX(float dx) { Min.x += dx; Max.x += dx; }
void TranslateY(float dy) { Min.y += dy; Max.y += dy; }
void ClipWith(const ImRect& r) { Min = ImMax(Min, r.Min); Max = ImMin(Max, r.Max); } // Simple version, may lead to an inverted rectangle, which is fine for Contains/Overlaps test but not for display.
void ClipWithFull(const ImRect& r) { Min = ImClamp(Min, r.Min, r.Max); Max = ImClamp(Max, r.Min, r.Max); } // Full version, ensure both points are fully clipped.
void Floor() { Min.x = IM_FLOOR(Min.x); Min.y = IM_FLOOR(Min.y); Max.x = IM_FLOOR(Max.x); Max.y = IM_FLOOR(Max.y); }
bool IsInverted() const { return Min.x > Max.x || Min.y > Max.y; }
ImVec4 ToVec4() const { return ImVec4(Min.x, Min.y, Max.x, Max.y); }
};
// Helper: ImBitArray
#define IM_BITARRAY_TESTBIT(_ARRAY, _N) ((_ARRAY[(_N) >> 5] & ((ImU32)1 << ((_N) & 31))) != 0) // Macro version of ImBitArrayTestBit(): ensure args have side-effect or are costly!
#define IM_BITARRAY_CLEARBIT(_ARRAY, _N) ((_ARRAY[(_N) >> 5] &= ~((ImU32)1 << ((_N) & 31)))) // Macro version of ImBitArrayClearBit(): ensure args have side-effect or are costly!
inline size_t ImBitArrayGetStorageSizeInBytes(int bitcount) { return (size_t)((bitcount + 31) >> 5) << 2; }
inline void ImBitArrayClearAllBits(ImU32* arr, int bitcount){ memset(arr, 0, ImBitArrayGetStorageSizeInBytes(bitcount)); }
inline bool ImBitArrayTestBit(const ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); return (arr[n >> 5] & mask) != 0; }
inline void ImBitArrayClearBit(ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] &= ~mask; }
inline void ImBitArraySetBit(ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] |= mask; }
inline void ImBitArraySetBitRange(ImU32* arr, int n, int n2) // Works on range [n..n2)
{
n2--;
while (n <= n2)
{
int a_mod = (n & 31);
int b_mod = (n2 > (n | 31) ? 31 : (n2 & 31)) + 1;
ImU32 mask = (ImU32)(((ImU64)1 << b_mod) - 1) & ~(ImU32)(((ImU64)1 << a_mod) - 1);
arr[n >> 5] |= mask;
n = (n + 32) & ~31;
}
}
typedef ImU32* ImBitArrayPtr; // Name for use in structs
// Helper: ImBitArray class (wrapper over ImBitArray functions)
// Store 1-bit per value.
template<int BITCOUNT, int OFFSET = 0>
struct ImBitArray
{
ImU32 Storage[(BITCOUNT + 31) >> 5];
ImBitArray() { ClearAllBits(); }
void ClearAllBits() { memset(Storage, 0, sizeof(Storage)); }
void SetAllBits() { memset(Storage, 255, sizeof(Storage)); }
bool TestBit(int n) const { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return IM_BITARRAY_TESTBIT(Storage, n); }
void SetBit(int n) { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArraySetBit(Storage, n); }
void ClearBit(int n) { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArrayClearBit(Storage, n); }
void SetBitRange(int n, int n2) { n += OFFSET; n2 += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT && n2 > n && n2 <= BITCOUNT); ImBitArraySetBitRange(Storage, n, n2); } // Works on range [n..n2)
bool operator[](int n) const { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return IM_BITARRAY_TESTBIT(Storage, n); }
};
// Helper: ImBitVector
// Store 1-bit per value.
struct IMGUI_API ImBitVector
{
ImVector<ImU32> Storage;
void Create(int sz) { Storage.resize((sz + 31) >> 5); memset(Storage.Data, 0, (size_t)Storage.Size * sizeof(Storage.Data[0])); }
void Clear() { Storage.clear(); }
bool TestBit(int n) const { IM_ASSERT(n < (Storage.Size << 5)); return IM_BITARRAY_TESTBIT(Storage.Data, n); }
void SetBit(int n) { IM_ASSERT(n < (Storage.Size << 5)); ImBitArraySetBit(Storage.Data, n); }
void ClearBit(int n) { IM_ASSERT(n < (Storage.Size << 5)); ImBitArrayClearBit(Storage.Data, n); }
};
IM_MSVC_RUNTIME_CHECKS_RESTORE
// Helper: ImSpan<>
// Pointing to a span of data we don't own.
template<typename T>
struct ImSpan
{
T* Data;
T* DataEnd;
// Constructors, destructor
inline ImSpan() { Data = DataEnd = NULL; }
inline ImSpan(T* data, int size) { Data = data; DataEnd = data + size; }
inline ImSpan(T* data, T* data_end) { Data = data; DataEnd = data_end; }
inline void set(T* data, int size) { Data = data; DataEnd = data + size; }
inline void set(T* data, T* data_end) { Data = data; DataEnd = data_end; }
inline int size() const { return (int)(ptrdiff_t)(DataEnd - Data); }
inline int size_in_bytes() const { return (int)(ptrdiff_t)(DataEnd - Data) * (int)sizeof(T); }
inline T& operator[](int i) { T* p = Data + i; IM_ASSERT(p >= Data && p < DataEnd); return *p; }
inline const T& operator[](int i) const { const T* p = Data + i; IM_ASSERT(p >= Data && p < DataEnd); return *p; }
inline T* begin() { return Data; }
inline const T* begin() const { return Data; }
inline T* end() { return DataEnd; }
inline const T* end() const { return DataEnd; }
// Utilities
inline int index_from_ptr(const T* it) const { IM_ASSERT(it >= Data && it < DataEnd); const ptrdiff_t off = it - Data; return (int)off; }
};
// Helper: ImSpanAllocator<>
// Facilitate storing multiple chunks into a single large block (the "arena")
// - Usage: call Reserve() N times, allocate GetArenaSizeInBytes() worth, pass it to SetArenaBasePtr(), call GetSpan() N times to retrieve the aligned ranges.
template<int CHUNKS>
struct ImSpanAllocator
{
char* BasePtr;
int CurrOff;
int CurrIdx;
int Offsets[CHUNKS];
int Sizes[CHUNKS];
ImSpanAllocator() { memset(this, 0, sizeof(*this)); }
inline void Reserve(int n, size_t sz, int a=4) { IM_ASSERT(n == CurrIdx && n < CHUNKS); CurrOff = IM_MEMALIGN(CurrOff, a); Offsets[n] = CurrOff; Sizes[n] = (int)sz; CurrIdx++; CurrOff += (int)sz; }
inline int GetArenaSizeInBytes() { return CurrOff; }
inline void SetArenaBasePtr(void* base_ptr) { BasePtr = (char*)base_ptr; }
inline void* GetSpanPtrBegin(int n) { IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n]); }
inline void* GetSpanPtrEnd(int n) { IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n] + Sizes[n]); }
template<typename T>
inline void GetSpan(int n, ImSpan<T>* span) { span->set((T*)GetSpanPtrBegin(n), (T*)GetSpanPtrEnd(n)); }
};
// Helper: ImPool<>
// Basic keyed storage for contiguous instances, slow/amortized insertion, O(1) indexable, O(Log N) queries by ID over a dense/hot buffer,
// Honor constructor/destructor. Add/remove invalidate all pointers. Indexes have the same lifetime as the associated object.
typedef int ImPoolIdx;
template<typename T>
struct ImPool
{
ImVector<T> Buf; // Contiguous data
ImGuiStorage Map; // ID->Index
ImPoolIdx FreeIdx; // Next free idx to use
ImPoolIdx AliveCount; // Number of active/alive items (for display purpose)
ImPool() { FreeIdx = AliveCount = 0; }
~ImPool() { Clear(); }
T* GetByKey(ImGuiID key) { int idx = Map.GetInt(key, -1); return (idx != -1) ? &Buf[idx] : NULL; }
T* GetByIndex(ImPoolIdx n) { return &Buf[n]; }
ImPoolIdx GetIndex(const T* p) const { IM_ASSERT(p >= Buf.Data && p < Buf.Data + Buf.Size); return (ImPoolIdx)(p - Buf.Data); }
T* GetOrAddByKey(ImGuiID key) { int* p_idx = Map.GetIntRef(key, -1); if (*p_idx != -1) return &Buf[*p_idx]; *p_idx = FreeIdx; return Add(); }
bool Contains(const T* p) const { return (p >= Buf.Data && p < Buf.Data + Buf.Size); }
void Clear() { for (int n = 0; n < Map.Data.Size; n++) { int idx = Map.Data[n].val_i; if (idx != -1) Buf[idx].~T(); } Map.Clear(); Buf.clear(); FreeIdx = AliveCount = 0; }
T* Add() { int idx = FreeIdx; if (idx == Buf.Size) { Buf.resize(Buf.Size + 1); FreeIdx++; } else { FreeIdx = *(int*)&Buf[idx]; } IM_PLACEMENT_NEW(&Buf[idx]) T(); AliveCount++; return &Buf[idx]; }
void Remove(ImGuiID key, const T* p) { Remove(key, GetIndex(p)); }
void Remove(ImGuiID key, ImPoolIdx idx) { Buf[idx].~T(); *(int*)&Buf[idx] = FreeIdx; FreeIdx = idx; Map.SetInt(key, -1); AliveCount--; }
void Reserve(int capacity) { Buf.reserve(capacity); Map.Data.reserve(capacity); }
// To iterate a ImPool: for (int n = 0; n < pool.GetMapSize(); n++) if (T* t = pool.TryGetMapData(n)) { ... }
// Can be avoided if you know .Remove() has never been called on the pool, or AliveCount == GetMapSize()
int GetAliveCount() const { return AliveCount; } // Number of active/alive items in the pool (for display purpose)
int GetBufSize() const { return Buf.Size; }
int GetMapSize() const { return Map.Data.Size; } // It is the map we need iterate to find valid items, since we don't have "alive" storage anywhere
T* TryGetMapData(ImPoolIdx n) { int idx = Map.Data[n].val_i; if (idx == -1) return NULL; return GetByIndex(idx); }
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
int GetSize() { return GetMapSize(); } // For ImPlot: should use GetMapSize() from (IMGUI_VERSION_NUM >= 18304)
#endif
};
// Helper: ImChunkStream<>
// Build and iterate a contiguous stream of variable-sized structures.
// This is used by Settings to store persistent data while reducing allocation count.
// We store the chunk size first, and align the final size on 4 bytes boundaries.
// The tedious/zealous amount of casting is to avoid -Wcast-align warnings.
template<typename T>
struct ImChunkStream
{
ImVector<char> Buf;
void clear() { Buf.clear(); }
bool empty() const { return Buf.Size == 0; }
int size() const { return Buf.Size; }
T* alloc_chunk(size_t sz) { size_t HDR_SZ = 4; sz = IM_MEMALIGN(HDR_SZ + sz, 4u); int off = Buf.Size; Buf.resize(off + (int)sz); ((int*)(void*)(Buf.Data + off))[0] = (int)sz; return (T*)(void*)(Buf.Data + off + (int)HDR_SZ); }
T* begin() { size_t HDR_SZ = 4; if (!Buf.Data) return NULL; return (T*)(void*)(Buf.Data + HDR_SZ); }
T* next_chunk(T* p) { size_t HDR_SZ = 4; IM_ASSERT(p >= begin() && p < end()); p = (T*)(void*)((char*)(void*)p + chunk_size(p)); if (p == (T*)(void*)((char*)end() + HDR_SZ)) return (T*)0; IM_ASSERT(p < end()); return p; }
int chunk_size(const T* p) { return ((const int*)p)[-1]; }
T* end() { return (T*)(void*)(Buf.Data + Buf.Size); }
int offset_from_ptr(const T* p) { IM_ASSERT(p >= begin() && p < end()); const ptrdiff_t off = (const char*)p - Buf.Data; return (int)off; }
T* ptr_from_offset(int off) { IM_ASSERT(off >= 4 && off < Buf.Size); return (T*)(void*)(Buf.Data + off); }
void swap(ImChunkStream<T>& rhs) { rhs.Buf.swap(Buf); }
};
// Helper: ImGuiTextIndex<>
// Maintain a line index for a text buffer. This is a strong candidate to be moved into the public API.
struct ImGuiTextIndex
{
ImVector<int> LineOffsets;
int EndOffset = 0; // Because we don't own text buffer we need to maintain EndOffset (may bake in LineOffsets?)
void clear() { LineOffsets.clear(); EndOffset = 0; }
int size() { return LineOffsets.Size; }
const char* get_line_begin(const char* base, int n) { return base + LineOffsets[n]; }
const char* get_line_end(const char* base, int n) { return base + (n + 1 < LineOffsets.Size ? (LineOffsets[n + 1] - 1) : EndOffset); }
void append(const char* base, int old_size, int new_size);
};
//-----------------------------------------------------------------------------
// [SECTION] ImDrawList support
//-----------------------------------------------------------------------------
// ImDrawList: Helper function to calculate a circle's segment count given its radius and a "maximum error" value.
// Estimation of number of circle segment based on error is derived using method described in https://stackoverflow.com/a/2244088/15194693
// Number of segments (N) is calculated using equation:
// N = ceil ( pi / acos(1 - error / r) ) where r > 0, error <= r
// Our equation is significantly simpler that one in the post thanks for choosing segment that is
// perpendicular to X axis. Follow steps in the article from this starting condition and you will
// will get this result.
//
// Rendering circles with an odd number of segments, while mathematically correct will produce
// asymmetrical results on the raster grid. Therefore we're rounding N to next even number (7->8, 8->8, 9->10 etc.)
#define IM_ROUNDUP_TO_EVEN(_V) ((((_V) + 1) / 2) * 2)
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN 4
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX 512
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(_RAD,_MAXERROR) ImClamp(IM_ROUNDUP_TO_EVEN((int)ImCeil(IM_PI / ImAcos(1 - ImMin((_MAXERROR), (_RAD)) / (_RAD)))), IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX)
// Raw equation from IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC rewritten for 'r' and 'error'.
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(_N,_MAXERROR) ((_MAXERROR) / (1 - ImCos(IM_PI / ImMax((float)(_N), IM_PI))))
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_ERROR(_N,_RAD) ((1 - ImCos(IM_PI / ImMax((float)(_N), IM_PI))) / (_RAD))
// ImDrawList: Lookup table size for adaptive arc drawing, cover full circle.
#ifndef IM_DRAWLIST_ARCFAST_TABLE_SIZE
#define IM_DRAWLIST_ARCFAST_TABLE_SIZE 48 // Number of samples in lookup table.
#endif
#define IM_DRAWLIST_ARCFAST_SAMPLE_MAX IM_DRAWLIST_ARCFAST_TABLE_SIZE // Sample index _PathArcToFastEx() for 360 angle.
// Data shared between all ImDrawList instances
// You may want to create your own instance of this if you want to use ImDrawList completely without ImGui. In that case, watch out for future changes to this structure.
struct IMGUI_API ImDrawListSharedData
{
ImVec2 TexUvWhitePixel; // UV of white pixel in the atlas
ImFont* Font; // Current/default font (optional, for simplified AddText overload)
float FontSize; // Current/default font size (optional, for simplified AddText overload)
float CurveTessellationTol; // Tessellation tolerance when using PathBezierCurveTo()
float CircleSegmentMaxError; // Number of circle segments to use per pixel of radius for AddCircle() etc
ImVec4 ClipRectFullscreen; // Value for PushClipRectFullscreen()
ImDrawListFlags InitialFlags; // Initial flags at the beginning of the frame (it is possible to alter flags on a per-drawlist basis afterwards)
// [Internal] Temp write buffer
ImVector<ImVec2> TempBuffer;
// [Internal] Lookup tables
ImVec2 ArcFastVtx[IM_DRAWLIST_ARCFAST_TABLE_SIZE]; // Sample points on the quarter of the circle.
float ArcFastRadiusCutoff; // Cutoff radius after which arc drawing will fallback to slower PathArcTo()
ImU8 CircleSegmentCounts[64]; // Precomputed segment count for given radius before we calculate it dynamically (to avoid calculation overhead)
const ImVec4* TexUvLines; // UV of anti-aliased lines in the atlas
ImDrawListSharedData();
void SetCircleTessellationMaxError(float max_error);
};
struct ImDrawDataBuilder
{
ImVector<ImDrawList*> Layers[2]; // Global layers for: regular, tooltip
void Clear() { for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) Layers[n].resize(0); }
void ClearFreeMemory() { for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) Layers[n].clear(); }
int GetDrawListCount() const { int count = 0; for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) count += Layers[n].Size; return count; }
IMGUI_API void FlattenIntoSingleLayer();
};
//-----------------------------------------------------------------------------
// [SECTION] Widgets support: flags, enums, data structures
//-----------------------------------------------------------------------------
// Flags used by upcoming items
// - input: PushItemFlag() manipulates g.CurrentItemFlags, ItemAdd() calls may add extra flags.
// - output: stored in g.LastItemData.InFlags
// Current window shared by all windows.
// This is going to be exposed in imgui.h when stabilized enough.
enum ImGuiItemFlags_
{
// Controlled by user
ImGuiItemFlags_None = 0,
ImGuiItemFlags_NoTabStop = 1 << 0, // false // Disable keyboard tabbing. This is a "lighter" version of ImGuiItemFlags_NoNav.
ImGuiItemFlags_ButtonRepeat = 1 << 1, // false // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings.
ImGuiItemFlags_Disabled = 1 << 2, // false // Disable interactions but doesn't affect visuals. See BeginDisabled()/EndDisabled(). See github.com/ocornut/imgui/issues/211
ImGuiItemFlags_NoNav = 1 << 3, // false // Disable any form of focusing (keyboard/gamepad directional navigation and SetKeyboardFocusHere() calls)
ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false // Disable item being a candidate for default focus (e.g. used by title bar items)
ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // Disable MenuItem/Selectable() automatically closing their popup window
ImGuiItemFlags_MixedValue = 1 << 6, // false // [BETA] Represent a mixed/indeterminate value, generally multi-selection where values differ. Currently only supported by Checkbox() (later should support all sorts of widgets)
ImGuiItemFlags_ReadOnly = 1 << 7, // false // [ALPHA] Allow hovering interactions but underlying value is not changed.
ImGuiItemFlags_NoWindowHoverableCheck = 1 << 8, // false // Disable hoverable check in ItemHoverable()
// Controlled by widget code
ImGuiItemFlags_Inputable = 1 << 10, // false // [WIP] Auto-activate input mode when tab focused. Currently only used and supported by a few items before it becomes a generic feature.
};
// Status flags for an already submitted item
// - output: stored in g.LastItemData.StatusFlags
enum ImGuiItemStatusFlags_
{
ImGuiItemStatusFlags_None = 0,
ImGuiItemStatusFlags_HoveredRect = 1 << 0, // Mouse position is within item rectangle (does NOT mean that the window is in correct z-order and can be hovered!, this is only one part of the most-common IsItemHovered test)
ImGuiItemStatusFlags_HasDisplayRect = 1 << 1, // g.LastItemData.DisplayRect is valid
ImGuiItemStatusFlags_Edited = 1 << 2, // Value exposed by item was edited in the current frame (should match the bool return value of most widgets)
ImGuiItemStatusFlags_ToggledSelection = 1 << 3, // Set when Selectable(), TreeNode() reports toggling a selection. We can't report "Selected", only state changes, in order to easily handle clipping with less issues.
ImGuiItemStatusFlags_ToggledOpen = 1 << 4, // Set when TreeNode() reports toggling their open state.
ImGuiItemStatusFlags_HasDeactivated = 1 << 5, // Set if the widget/group is able to provide data for the ImGuiItemStatusFlags_Deactivated flag.
ImGuiItemStatusFlags_Deactivated = 1 << 6, // Only valid if ImGuiItemStatusFlags_HasDeactivated is set.
ImGuiItemStatusFlags_HoveredWindow = 1 << 7, // Override the HoveredWindow test to allow cross-window hover testing.
ImGuiItemStatusFlags_FocusedByTabbing = 1 << 8, // Set when the Focusable item just got focused by Tabbing (FIXME: to be removed soon)
ImGuiItemStatusFlags_Visible = 1 << 9, // [WIP] Set when item is overlapping the current clipping rectangle (Used internally. Please don't use yet: API/system will change as we refactor Itemadd()).
// Additional status + semantic for ImGuiTestEngine
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiItemStatusFlags_Openable = 1 << 20, // Item is an openable (e.g. TreeNode)
ImGuiItemStatusFlags_Opened = 1 << 21, // Opened status
ImGuiItemStatusFlags_Checkable = 1 << 22, // Item is a checkable (e.g. CheckBox, MenuItem)
ImGuiItemStatusFlags_Checked = 1 << 23, // Checked status
ImGuiItemStatusFlags_Inputable = 1 << 24, // Item is a text-inputable (e.g. InputText, SliderXXX, DragXXX)
#endif
};
// Extend ImGuiInputTextFlags_
enum ImGuiInputTextFlagsPrivate_
{
// [Internal]
ImGuiInputTextFlags_Multiline = 1 << 26, // For internal use by InputTextMultiline()
ImGuiInputTextFlags_NoMarkEdited = 1 << 27, // For internal use by functions using InputText() before reformatting data
ImGuiInputTextFlags_MergedItem = 1 << 28, // For internal use by TempInputText(), will skip calling ItemAdd(). Require bounding-box to strictly match.
};
// Extend ImGuiButtonFlags_
enum ImGuiButtonFlagsPrivate_
{
ImGuiButtonFlags_PressedOnClick = 1 << 4, // return true on click (mouse down event)
ImGuiButtonFlags_PressedOnClickRelease = 1 << 5, // [Default] return true on click + release on same item <-- this is what the majority of Button are using
ImGuiButtonFlags_PressedOnClickReleaseAnywhere = 1 << 6, // return true on click + release even if the release event is not done while hovering the item
ImGuiButtonFlags_PressedOnRelease = 1 << 7, // return true on release (default requires click+release)
ImGuiButtonFlags_PressedOnDoubleClick = 1 << 8, // return true on double-click (default requires click+release)
ImGuiButtonFlags_PressedOnDragDropHold = 1 << 9, // return true when held into while we are drag and dropping another item (used by e.g. tree nodes, collapsing headers)
ImGuiButtonFlags_Repeat = 1 << 10, // hold to repeat
ImGuiButtonFlags_FlattenChildren = 1 << 11, // allow interactions even if a child window is overlapping
ImGuiButtonFlags_AllowItemOverlap = 1 << 12, // require previous frame HoveredId to either match id or be null before being usable, use along with SetItemAllowOverlap()
ImGuiButtonFlags_DontClosePopups = 1 << 13, // disable automatically closing parent popup on press // [UNUSED]
//ImGuiButtonFlags_Disabled = 1 << 14, // disable interactions -> use BeginDisabled() or ImGuiItemFlags_Disabled
ImGuiButtonFlags_AlignTextBaseLine = 1 << 15, // vertically align button to match text baseline - ButtonEx() only // FIXME: Should be removed and handled by SmallButton(), not possible currently because of DC.CursorPosPrevLine
ImGuiButtonFlags_NoKeyModifiers = 1 << 16, // disable mouse interaction if a key modifier is held
ImGuiButtonFlags_NoHoldingActiveId = 1 << 17, // don't set ActiveId while holding the mouse (ImGuiButtonFlags_PressedOnClick only)
ImGuiButtonFlags_NoNavFocus = 1 << 18, // don't override navigation focus when activated (FIXME: this is essentially used everytime an item uses ImGuiItemFlags_NoNav, but because legacy specs don't requires LastItemData to be set ButtonBehavior(), we can't poll g.LastItemData.InFlags)
ImGuiButtonFlags_NoHoveredOnFocus = 1 << 19, // don't report as hovered when nav focus is on this item
ImGuiButtonFlags_NoSetKeyOwner = 1 << 20, // don't set key/input owner on the initial click (note: mouse buttons are keys! often, the key in question will be ImGuiKey_MouseLeft!)
ImGuiButtonFlags_NoTestKeyOwner = 1 << 21, // don't test key/input owner when polling the key (note: mouse buttons are keys! often, the key in question will be ImGuiKey_MouseLeft!)
ImGuiButtonFlags_PressedOnMask_ = ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClickReleaseAnywhere | ImGuiButtonFlags_PressedOnRelease | ImGuiButtonFlags_PressedOnDoubleClick | ImGuiButtonFlags_PressedOnDragDropHold,
ImGuiButtonFlags_PressedOnDefault_ = ImGuiButtonFlags_PressedOnClickRelease,
};
// Extend ImGuiComboFlags_
enum ImGuiComboFlagsPrivate_
{
ImGuiComboFlags_CustomPreview = 1 << 20, // enable BeginComboPreview()
};
// Extend ImGuiSliderFlags_
enum ImGuiSliderFlagsPrivate_
{
ImGuiSliderFlags_Vertical = 1 << 20, // Should this slider be orientated vertically?
ImGuiSliderFlags_ReadOnly = 1 << 21,
};
// Extend ImGuiSelectableFlags_
enum ImGuiSelectableFlagsPrivate_
{
// NB: need to be in sync with last value of ImGuiSelectableFlags_
ImGuiSelectableFlags_NoHoldingActiveID = 1 << 20,
ImGuiSelectableFlags_SelectOnNav = 1 << 21, // (WIP) Auto-select when moved into. This is not exposed in public API as to handle multi-select and modifiers we will need user to explicitly control focus scope. May be replaced with a BeginSelection() API.
ImGuiSelectableFlags_SelectOnClick = 1 << 22, // Override button behavior to react on Click (default is Click+Release)
ImGuiSelectableFlags_SelectOnRelease = 1 << 23, // Override button behavior to react on Release (default is Click+Release)
ImGuiSelectableFlags_SpanAvailWidth = 1 << 24, // Span all avail width even if we declared less for layout purpose. FIXME: We may be able to remove this (added in 6251d379, 2bcafc86 for menus)
ImGuiSelectableFlags_SetNavIdOnHover = 1 << 25, // Set Nav/Focus ID on mouse hover (used by MenuItem)
ImGuiSelectableFlags_NoPadWithHalfSpacing = 1 << 26, // Disable padding each side with ItemSpacing * 0.5f
ImGuiSelectableFlags_NoSetKeyOwner = 1 << 27, // Don't set key/input owner on the initial click (note: mouse buttons are keys! often, the key in question will be ImGuiKey_MouseLeft!)
};
// Extend ImGuiTreeNodeFlags_
enum ImGuiTreeNodeFlagsPrivate_
{
ImGuiTreeNodeFlags_ClipLabelForTrailingButton = 1 << 20,
};
enum ImGuiSeparatorFlags_
{
ImGuiSeparatorFlags_None = 0,
ImGuiSeparatorFlags_Horizontal = 1 << 0, // Axis default to current layout type, so generally Horizontal unless e.g. in a menu bar
ImGuiSeparatorFlags_Vertical = 1 << 1,
ImGuiSeparatorFlags_SpanAllColumns = 1 << 2,
};
enum ImGuiTextFlags_
{
ImGuiTextFlags_None = 0,
ImGuiTextFlags_NoWidthForLargeClippedText = 1 << 0,
};
enum ImGuiTooltipFlags_
{
ImGuiTooltipFlags_None = 0,
ImGuiTooltipFlags_OverridePreviousTooltip = 1 << 0, // Override will clear/ignore previously submitted tooltip (defaults to append)
};
// FIXME: this is in development, not exposed/functional as a generic feature yet.
// Horizontal/Vertical enums are fixed to 0/1 so they may be used to index ImVec2
enum ImGuiLayoutType_
{
ImGuiLayoutType_Horizontal = 0,
ImGuiLayoutType_Vertical = 1
};
enum ImGuiLogType
{
ImGuiLogType_None = 0,
ImGuiLogType_TTY,
ImGuiLogType_File,
ImGuiLogType_Buffer,
ImGuiLogType_Clipboard,
};
// X/Y enums are fixed to 0/1 so they may be used to index ImVec2
enum ImGuiAxis
{
ImGuiAxis_None = -1,
ImGuiAxis_X = 0,
ImGuiAxis_Y = 1
};
enum ImGuiPlotType
{
ImGuiPlotType_Lines,
ImGuiPlotType_Histogram,
};
enum ImGuiPopupPositionPolicy
{
ImGuiPopupPositionPolicy_Default,
ImGuiPopupPositionPolicy_ComboBox,
ImGuiPopupPositionPolicy_Tooltip,
};
struct ImGuiDataVarInfo
{
ImGuiDataType Type;
ImU32 Count; // 1+
ImU32 Offset; // Offset in parent structure
void* GetVarPtr(void* parent) const { return (void*)((unsigned char*)parent + Offset); }
};
struct ImGuiDataTypeTempStorage
{
ImU8 Data[8]; // Can fit any data up to ImGuiDataType_COUNT
};
// Type information associated to one ImGuiDataType. Retrieve with DataTypeGetInfo().
struct ImGuiDataTypeInfo
{
size_t Size; // Size in bytes
const char* Name; // Short descriptive name for the type, for debugging
const char* PrintFmt; // Default printf format for the type
const char* ScanFmt; // Default scanf format for the type
};
// Extend ImGuiDataType_
enum ImGuiDataTypePrivate_
{
ImGuiDataType_String = ImGuiDataType_COUNT + 1,
ImGuiDataType_Pointer,
ImGuiDataType_ID,
};
// Stacked color modifier, backup of modified data so we can restore it
struct ImGuiColorMod
{
ImGuiCol Col;
ImVec4 BackupValue;
};
// Stacked style modifier, backup of modified data so we can restore it. Data type inferred from the variable.
struct ImGuiStyleMod
{
ImGuiStyleVar VarIdx;
union { int BackupInt[2]; float BackupFloat[2]; };
ImGuiStyleMod(ImGuiStyleVar idx, int v) { VarIdx = idx; BackupInt[0] = v; }
ImGuiStyleMod(ImGuiStyleVar idx, float v) { VarIdx = idx; BackupFloat[0] = v; }
ImGuiStyleMod(ImGuiStyleVar idx, ImVec2 v) { VarIdx = idx; BackupFloat[0] = v.x; BackupFloat[1] = v.y; }
};
// Storage data for BeginComboPreview()/EndComboPreview()
struct IMGUI_API ImGuiComboPreviewData
{
ImRect PreviewRect;
ImVec2 BackupCursorPos;
ImVec2 BackupCursorMaxPos;
ImVec2 BackupCursorPosPrevLine;
float BackupPrevLineTextBaseOffset;
ImGuiLayoutType BackupLayout;
ImGuiComboPreviewData() { memset(this, 0, sizeof(*this)); }
};
// Stacked storage data for BeginGroup()/EndGroup()
struct IMGUI_API ImGuiGroupData
{
ImGuiID WindowID;
ImVec2 BackupCursorPos;
ImVec2 BackupCursorMaxPos;
ImVec1 BackupIndent;
ImVec1 BackupGroupOffset;
ImVec2 BackupCurrLineSize;
float BackupCurrLineTextBaseOffset;
ImGuiID BackupActiveIdIsAlive;
bool BackupActiveIdPreviousFrameIsAlive;
bool BackupHoveredIdIsAlive;
bool EmitItem;
};
// Simple column measurement, currently used for MenuItem() only.. This is very short-sighted/throw-away code and NOT a generic helper.
struct IMGUI_API ImGuiMenuColumns
{
ImU32 TotalWidth;
ImU32 NextTotalWidth;
ImU16 Spacing;
ImU16 OffsetIcon; // Always zero for now
ImU16 OffsetLabel; // Offsets are locked in Update()
ImU16 OffsetShortcut;
ImU16 OffsetMark;
ImU16 Widths[4]; // Width of: Icon, Label, Shortcut, Mark (accumulators for current frame)
ImGuiMenuColumns() { memset(this, 0, sizeof(*this)); }
void Update(float spacing, bool window_reappearing);
float DeclColumns(float w_icon, float w_label, float w_shortcut, float w_mark);
void CalcNextTotalWidth(bool update_offsets);
};
// Internal state of the currently focused/edited text input box
// For a given item ID, access with ImGui::GetInputTextState()
struct IMGUI_API ImGuiInputTextState
{
ImGuiContext* Ctx; // parent UI context (needs to be set explicitly by parent).
ImGuiID ID; // widget id owning the text state
int CurLenW, CurLenA; // we need to maintain our buffer length in both UTF-8 and wchar format. UTF-8 length is valid even if TextA is not.
ImVector<ImWchar> TextW; // edit buffer, we need to persist but can't guarantee the persistence of the user-provided buffer. so we copy into own buffer.
ImVector<char> TextA; // temporary UTF8 buffer for callbacks and other operations. this is not updated in every code-path! size=capacity.
ImVector<char> InitialTextA; // backup of end-user buffer at the time of focus (in UTF-8, unaltered)
bool TextAIsValid; // temporary UTF8 buffer is not initially valid before we make the widget active (until then we pull the data from user argument)
int BufCapacityA; // end-user buffer capacity
float ScrollX; // horizontal scrolling/offset
ImStb::STB_TexteditState Stb; // state for stb_textedit.h
float CursorAnim; // timer for cursor blink, reset on every user action so the cursor reappears immediately
bool CursorFollow; // set when we want scrolling to follow the current cursor position (not always!)
bool SelectedAllMouseLock; // after a double-click to select all, we ignore further mouse drags to update selection
bool Edited; // edited this frame
ImGuiInputTextFlags Flags; // copy of InputText() flags. may be used to check if e.g. ImGuiInputTextFlags_Password is set.
ImGuiInputTextState() { memset(this, 0, sizeof(*this)); }
void ClearText() { CurLenW = CurLenA = 0; TextW[0] = 0; TextA[0] = 0; CursorClamp(); }
void ClearFreeMemory() { TextW.clear(); TextA.clear(); InitialTextA.clear(); }
int GetUndoAvailCount() const { return Stb.undostate.undo_point; }
int GetRedoAvailCount() const { return STB_TEXTEDIT_UNDOSTATECOUNT - Stb.undostate.redo_point; }
void OnKeyPressed(int key); // Cannot be inline because we call in code in stb_textedit.h implementation
// Cursor & Selection
void CursorAnimReset() { CursorAnim = -0.30f; } // After a user-input the cursor stays on for a while without blinking
void CursorClamp() { Stb.cursor = ImMin(Stb.cursor, CurLenW); Stb.select_start = ImMin(Stb.select_start, CurLenW); Stb.select_end = ImMin(Stb.select_end, CurLenW); }
bool HasSelection() const { return Stb.select_start != Stb.select_end; }
void ClearSelection() { Stb.select_start = Stb.select_end = Stb.cursor; }
int GetCursorPos() const { return Stb.cursor; }
int GetSelectionStart() const { return Stb.select_start; }
int GetSelectionEnd() const { return Stb.select_end; }
void SelectAll() { Stb.select_start = 0; Stb.cursor = Stb.select_end = CurLenW; Stb.has_preferred_x = 0; }
};
// Storage for current popup stack
struct ImGuiPopupData
{
ImGuiID PopupId; // Set on OpenPopup()
ImGuiWindow* Window; // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup()
ImGuiWindow* BackupNavWindow;// Set on OpenPopup(), a NavWindow that will be restored on popup close
int ParentNavLayer; // Resolved on BeginPopup(). Actually a ImGuiNavLayer type (declared down below), initialized to -1 which is not part of an enum, but serves well-enough as "not any of layers" value
int OpenFrameCount; // Set on OpenPopup()
ImGuiID OpenParentId; // Set on OpenPopup(), we need this to differentiate multiple menu sets from each others (e.g. inside menu bar vs loose menu items)
ImVec2 OpenPopupPos; // Set on OpenPopup(), preferred popup position (typically == OpenMousePos when using mouse)
ImVec2 OpenMousePos; // Set on OpenPopup(), copy of mouse position at the time of opening popup
ImGuiPopupData() { memset(this, 0, sizeof(*this)); ParentNavLayer = OpenFrameCount = -1; }
};
enum ImGuiNextWindowDataFlags_
{
ImGuiNextWindowDataFlags_None = 0,
ImGuiNextWindowDataFlags_HasPos = 1 << 0,
ImGuiNextWindowDataFlags_HasSize = 1 << 1,
ImGuiNextWindowDataFlags_HasContentSize = 1 << 2,
ImGuiNextWindowDataFlags_HasCollapsed = 1 << 3,
ImGuiNextWindowDataFlags_HasSizeConstraint = 1 << 4,
ImGuiNextWindowDataFlags_HasFocus = 1 << 5,
ImGuiNextWindowDataFlags_HasBgAlpha = 1 << 6,
ImGuiNextWindowDataFlags_HasScroll = 1 << 7,
};
// Storage for SetNexWindow** functions
struct ImGuiNextWindowData
{
ImGuiNextWindowDataFlags Flags;
ImGuiCond PosCond;
ImGuiCond SizeCond;
ImGuiCond CollapsedCond;
ImVec2 PosVal;
ImVec2 PosPivotVal;
ImVec2 SizeVal;
ImVec2 ContentSizeVal;
ImVec2 ScrollVal;
bool CollapsedVal;
ImRect SizeConstraintRect;
ImGuiSizeCallback SizeCallback;
void* SizeCallbackUserData;
float BgAlphaVal; // Override background alpha
ImVec2 MenuBarOffsetMinVal; // (Always on) This is not exposed publicly, so we don't clear it and it doesn't have a corresponding flag (could we? for consistency?)
ImGuiNextWindowData() { memset(this, 0, sizeof(*this)); }
inline void ClearFlags() { Flags = ImGuiNextWindowDataFlags_None; }
};
enum ImGuiNextItemDataFlags_
{
ImGuiNextItemDataFlags_None = 0,
ImGuiNextItemDataFlags_HasWidth = 1 << 0,
ImGuiNextItemDataFlags_HasOpen = 1 << 1,
};
struct ImGuiNextItemData
{
ImGuiNextItemDataFlags Flags;
float Width; // Set by SetNextItemWidth()
ImGuiID FocusScopeId; // Set by SetNextItemMultiSelectData() (!= 0 signify value has been set, so it's an alternate version of HasSelectionData, we don't use Flags for this because they are cleared too early. This is mostly used for debugging)
ImGuiCond OpenCond;
bool OpenVal; // Set by SetNextItemOpen()
ImGuiNextItemData() { memset(this, 0, sizeof(*this)); }
inline void ClearFlags() { Flags = ImGuiNextItemDataFlags_None; } // Also cleared manually by ItemAdd()!
};
// Status storage for the last submitted item
struct ImGuiLastItemData
{
ImGuiID ID;
ImGuiItemFlags InFlags; // See ImGuiItemFlags_
ImGuiItemStatusFlags StatusFlags; // See ImGuiItemStatusFlags_
ImRect Rect; // Full rectangle
ImRect NavRect; // Navigation scoring rectangle (not displayed)
ImRect DisplayRect; // Display rectangle (only if ImGuiItemStatusFlags_HasDisplayRect is set)
ImGuiLastItemData() { memset(this, 0, sizeof(*this)); }
};
struct IMGUI_API ImGuiStackSizes
{
short SizeOfIDStack;
short SizeOfColorStack;
short SizeOfStyleVarStack;
short SizeOfFontStack;
short SizeOfFocusScopeStack;
short SizeOfGroupStack;
short SizeOfItemFlagsStack;
short SizeOfBeginPopupStack;
short SizeOfDisabledStack;
ImGuiStackSizes() { memset(this, 0, sizeof(*this)); }
void SetToContextState(ImGuiContext* ctx);
void CompareWithContextState(ImGuiContext* ctx);
};
// Data saved for each window pushed into the stack
struct ImGuiWindowStackData
{
ImGuiWindow* Window;
ImGuiLastItemData ParentLastItemDataBackup;
ImGuiStackSizes StackSizesOnBegin; // Store size of various stacks for asserting
};
struct ImGuiShrinkWidthItem
{
int Index;
float Width;
float InitialWidth;
};
struct ImGuiPtrOrIndex
{
void* Ptr; // Either field can be set, not both. e.g. Dock node tab bars are loose while BeginTabBar() ones are in a pool.
int Index; // Usually index in a main pool.
ImGuiPtrOrIndex(void* ptr) { Ptr = ptr; Index = -1; }
ImGuiPtrOrIndex(int index) { Ptr = NULL; Index = index; }
};
//-----------------------------------------------------------------------------
// [SECTION] Inputs support
//-----------------------------------------------------------------------------
// Bit array for named keys
typedef ImBitArray<ImGuiKey_NamedKey_COUNT, -ImGuiKey_NamedKey_BEGIN> ImBitArrayForNamedKeys;
// [Internal] Key ranges
#define ImGuiKey_LegacyNativeKey_BEGIN 0
#define ImGuiKey_LegacyNativeKey_END 512
#define ImGuiKey_Keyboard_BEGIN (ImGuiKey_NamedKey_BEGIN)
#define ImGuiKey_Keyboard_END (ImGuiKey_GamepadStart)
#define ImGuiKey_Gamepad_BEGIN (ImGuiKey_GamepadStart)
#define ImGuiKey_Gamepad_END (ImGuiKey_GamepadRStickDown + 1)
#define ImGuiKey_Mouse_BEGIN (ImGuiKey_MouseLeft)
#define ImGuiKey_Mouse_END (ImGuiKey_MouseWheelY + 1)
#define ImGuiKey_Aliases_BEGIN (ImGuiKey_Mouse_BEGIN)
#define ImGuiKey_Aliases_END (ImGuiKey_Mouse_END)
// [Internal] Named shortcuts for Navigation
#define ImGuiKey_NavKeyboardTweakSlow ImGuiMod_Ctrl
#define ImGuiKey_NavKeyboardTweakFast ImGuiMod_Shift
#define ImGuiKey_NavGamepadTweakSlow ImGuiKey_GamepadL1
#define ImGuiKey_NavGamepadTweakFast ImGuiKey_GamepadR1
#define ImGuiKey_NavGamepadActivate ImGuiKey_GamepadFaceDown
#define ImGuiKey_NavGamepadCancel ImGuiKey_GamepadFaceRight
#define ImGuiKey_NavGamepadMenu ImGuiKey_GamepadFaceLeft
#define ImGuiKey_NavGamepadInput ImGuiKey_GamepadFaceUp
enum ImGuiInputEventType
{
ImGuiInputEventType_None = 0,
ImGuiInputEventType_MousePos,
ImGuiInputEventType_MouseWheel,
ImGuiInputEventType_MouseButton,
ImGuiInputEventType_Key,
ImGuiInputEventType_Text,
ImGuiInputEventType_Focus,
ImGuiInputEventType_COUNT
};
enum ImGuiInputSource
{
ImGuiInputSource_None = 0,
ImGuiInputSource_Mouse,
ImGuiInputSource_Keyboard,
ImGuiInputSource_Gamepad,
ImGuiInputSource_Clipboard, // Currently only used by InputText()
ImGuiInputSource_Nav, // Stored in g.ActiveIdSource only
ImGuiInputSource_COUNT
};
// FIXME: Structures in the union below need to be declared as anonymous unions appears to be an extension?
// Using ImVec2() would fail on Clang 'union member 'MousePos' has a non-trivial default constructor'
struct ImGuiInputEventMousePos { float PosX, PosY; };
struct ImGuiInputEventMouseWheel { float WheelX, WheelY; };
struct ImGuiInputEventMouseButton { int Button; bool Down; };
struct ImGuiInputEventKey { ImGuiKey Key; bool Down; float AnalogValue; };
struct ImGuiInputEventText { unsigned int Char; };
struct ImGuiInputEventAppFocused { bool Focused; };
struct ImGuiInputEvent
{
ImGuiInputEventType Type;
ImGuiInputSource Source;
union
{
ImGuiInputEventMousePos MousePos; // if Type == ImGuiInputEventType_MousePos
ImGuiInputEventMouseWheel MouseWheel; // if Type == ImGuiInputEventType_MouseWheel
ImGuiInputEventMouseButton MouseButton; // if Type == ImGuiInputEventType_MouseButton
ImGuiInputEventKey Key; // if Type == ImGuiInputEventType_Key
ImGuiInputEventText Text; // if Type == ImGuiInputEventType_Text
ImGuiInputEventAppFocused AppFocused; // if Type == ImGuiInputEventType_Focus
};
bool AddedByTestEngine;
ImGuiInputEvent() { memset(this, 0, sizeof(*this)); }
};
// Input function taking an 'ImGuiID owner_id' argument defaults to (ImGuiKeyOwner_Any == 0) aka don't test ownership, which matches legacy behavior.
#define ImGuiKeyOwner_Any ((ImGuiID)0) // Accept key that have an owner, UNLESS a call to SetKeyOwner() explicitly used ImGuiInputFlags_LockThisFrame or ImGuiInputFlags_LockUntilRelease.
#define ImGuiKeyOwner_None ((ImGuiID)-1) // Require key to have no owner.
typedef ImS16 ImGuiKeyRoutingIndex;
// Routing table entry (sizeof() == 16 bytes)
struct ImGuiKeyRoutingData
{
ImGuiKeyRoutingIndex NextEntryIndex;
ImU16 Mods; // Technically we'd only need 4-bits but for simplify we store ImGuiMod_ values which need 16-bits. ImGuiMod_Shortcut is already translated to Ctrl/Super.
ImU8 RoutingNextScore; // Lower is better (0: perfect score)
ImGuiID RoutingCurr;
ImGuiID RoutingNext;
ImGuiKeyRoutingData() { NextEntryIndex = -1; Mods = 0; RoutingNextScore = 255; RoutingCurr = RoutingNext = ImGuiKeyOwner_None; }
};
// Routing table: maintain a desired owner for each possible key-chord (key + mods), and setup owner in NewFrame() when mods are matching.
// Stored in main context (1 instance)
struct ImGuiKeyRoutingTable
{
ImGuiKeyRoutingIndex Index[ImGuiKey_NamedKey_COUNT]; // Index of first entry in Entries[]
ImVector<ImGuiKeyRoutingData> Entries;
ImVector<ImGuiKeyRoutingData> EntriesNext; // Double-buffer to avoid reallocation (could use a shared buffer)
ImGuiKeyRoutingTable() { Clear(); }
void Clear() { for (int n = 0; n < IM_ARRAYSIZE(Index); n++) Index[n] = -1; Entries.clear(); EntriesNext.clear(); }
};
// This extends ImGuiKeyData but only for named keys (legacy keys don't support the new features)
// Stored in main context (1 per named key). In the future it might be merged into ImGuiKeyData.
struct ImGuiKeyOwnerData
{
ImGuiID OwnerCurr;
ImGuiID OwnerNext;
bool LockThisFrame; // Reading this key requires explicit owner id (until end of frame). Set by ImGuiInputFlags_LockThisFrame.
bool LockUntilRelease; // Reading this key requires explicit owner id (until key is released). Set by ImGuiInputFlags_LockUntilRelease. When this is true LockThisFrame is always true as well.
ImGuiKeyOwnerData() { OwnerCurr = OwnerNext = ImGuiKeyOwner_None; LockThisFrame = LockUntilRelease = false; }
};
// Flags for extended versions of IsKeyPressed(), IsMouseClicked(), Shortcut(), SetKeyOwner(), SetItemKeyOwner()
// Don't mistake with ImGuiInputTextFlags! (for ImGui::InputText() function)
enum ImGuiInputFlags_
{
// Flags for IsKeyPressed(), IsMouseClicked(), Shortcut()
ImGuiInputFlags_None = 0,
ImGuiInputFlags_Repeat = 1 << 0, // Return true on successive repeats. Default for legacy IsKeyPressed(). NOT Default for legacy IsMouseClicked(). MUST BE == 1.
ImGuiInputFlags_RepeatRateDefault = 1 << 1, // Repeat rate: Regular (default)
ImGuiInputFlags_RepeatRateNavMove = 1 << 2, // Repeat rate: Fast
ImGuiInputFlags_RepeatRateNavTweak = 1 << 3, // Repeat rate: Faster
ImGuiInputFlags_RepeatRateMask_ = ImGuiInputFlags_RepeatRateDefault | ImGuiInputFlags_RepeatRateNavMove | ImGuiInputFlags_RepeatRateNavTweak,
// Flags for SetItemKeyOwner()
ImGuiInputFlags_CondHovered = 1 << 4, // Only set if item is hovered (default to both)
ImGuiInputFlags_CondActive = 1 << 5, // Only set if item is active (default to both)
ImGuiInputFlags_CondDefault_ = ImGuiInputFlags_CondHovered | ImGuiInputFlags_CondActive,
ImGuiInputFlags_CondMask_ = ImGuiInputFlags_CondHovered | ImGuiInputFlags_CondActive,
// Flags for SetKeyOwner(), SetItemKeyOwner()
ImGuiInputFlags_LockThisFrame = 1 << 6, // Access to key data will require EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared at end of frame. This is useful to make input-owner-aware code steal keys from non-input-owner-aware code.
ImGuiInputFlags_LockUntilRelease = 1 << 7, // Access to key data will require EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared when the key is released or at end of each frame if key is released. This is useful to make input-owner-aware code steal keys from non-input-owner-aware code.
// Routing policies for Shortcut() + low-level SetShortcutRouting()
// - The general idea is that several callers register interest in a shortcut, and only one owner gets it.
// - When a policy (other than _RouteAlways) is set, Shortcut() will register itself with SetShortcutRouting(),
// allowing the system to decide where to route the input among other route-aware calls.
// - Shortcut() uses ImGuiInputFlags_RouteFocused by default: meaning that a simple Shortcut() poll
// will register a route and only succeed when parent window is in the focus stack and if no-one
// with a higher priority is claiming the shortcut.
// - Using ImGuiInputFlags_RouteAlways is roughly equivalent to doing e.g. IsKeyPressed(key) + testing mods.
// - Priorities: GlobalHigh > Focused (when owner is active item) > Global > Focused (when focused window) > GlobalLow.
// - Can select only 1 policy among all available.
ImGuiInputFlags_RouteFocused = 1 << 8, // (Default) Register focused route: Accept inputs if window is in focus stack. Deep-most focused window takes inputs. ActiveId takes inputs over deep-most focused window.
ImGuiInputFlags_RouteGlobalLow = 1 << 9, // Register route globally (lowest priority: unless a focused window or active item registered the route) -> recommended Global priority.
ImGuiInputFlags_RouteGlobal = 1 << 10, // Register route globally (medium priority: unless an active item registered the route, e.g. CTRL+A registered by InputText).
ImGuiInputFlags_RouteGlobalHigh = 1 << 11, // Register route globally (highest priority: unlikely you need to use that: will interfere with every active items)
ImGuiInputFlags_RouteMask_ = ImGuiInputFlags_RouteFocused | ImGuiInputFlags_RouteGlobal | ImGuiInputFlags_RouteGlobalLow | ImGuiInputFlags_RouteGlobalHigh, // _Always not part of this!
ImGuiInputFlags_RouteAlways = 1 << 12, // Do not register route, poll keys directly.
ImGuiInputFlags_RouteUnlessBgFocused= 1 << 13, // Global routes will not be applied if underlying background/void is focused (== no Dear ImGui windows are focused). Useful for overlay applications.
ImGuiInputFlags_RouteExtraMask_ = ImGuiInputFlags_RouteAlways | ImGuiInputFlags_RouteUnlessBgFocused,
// [Internal] Mask of which function support which flags
ImGuiInputFlags_SupportedByIsKeyPressed = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_,
ImGuiInputFlags_SupportedByShortcut = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_ | ImGuiInputFlags_RouteMask_ | ImGuiInputFlags_RouteExtraMask_,
ImGuiInputFlags_SupportedBySetKeyOwner = ImGuiInputFlags_LockThisFrame | ImGuiInputFlags_LockUntilRelease,
ImGuiInputFlags_SupportedBySetItemKeyOwner = ImGuiInputFlags_SupportedBySetKeyOwner | ImGuiInputFlags_CondMask_,
};
//-----------------------------------------------------------------------------
// [SECTION] Clipper support
//-----------------------------------------------------------------------------
struct ImGuiListClipperRange
{
int Min;
int Max;
bool PosToIndexConvert; // Begin/End are absolute position (will be converted to indices later)
ImS8 PosToIndexOffsetMin; // Add to Min after converting to indices
ImS8 PosToIndexOffsetMax; // Add to Min after converting to indices
static ImGuiListClipperRange FromIndices(int min, int max) { ImGuiListClipperRange r = { min, max, false, 0, 0 }; return r; }
static ImGuiListClipperRange FromPositions(float y1, float y2, int off_min, int off_max) { ImGuiListClipperRange r = { (int)y1, (int)y2, true, (ImS8)off_min, (ImS8)off_max }; return r; }
};
// Temporary clipper data, buffers shared/reused between instances
struct ImGuiListClipperData
{
ImGuiListClipper* ListClipper;
float LossynessOffset;
int StepNo;
int ItemsFrozen;
ImVector<ImGuiListClipperRange> Ranges;
ImGuiListClipperData() { memset(this, 0, sizeof(*this)); }
void Reset(ImGuiListClipper* clipper) { ListClipper = clipper; StepNo = ItemsFrozen = 0; Ranges.resize(0); }
};
//-----------------------------------------------------------------------------
// [SECTION] Navigation support
//-----------------------------------------------------------------------------
enum ImGuiActivateFlags_
{
ImGuiActivateFlags_None = 0,
ImGuiActivateFlags_PreferInput = 1 << 0, // Favor activation that requires keyboard text input (e.g. for Slider/Drag). Default for Enter key.
ImGuiActivateFlags_PreferTweak = 1 << 1, // Favor activation for tweaking with arrows or gamepad (e.g. for Slider/Drag). Default for Space key and if keyboard is not used.
ImGuiActivateFlags_TryToPreserveState = 1 << 2, // Request widget to preserve state if it can (e.g. InputText will try to preserve cursor/selection)
};
// Early work-in-progress API for ScrollToItem()
enum ImGuiScrollFlags_
{
ImGuiScrollFlags_None = 0,
ImGuiScrollFlags_KeepVisibleEdgeX = 1 << 0, // If item is not visible: scroll as little as possible on X axis to bring item back into view [default for X axis]
ImGuiScrollFlags_KeepVisibleEdgeY = 1 << 1, // If item is not visible: scroll as little as possible on Y axis to bring item back into view [default for Y axis for windows that are already visible]
ImGuiScrollFlags_KeepVisibleCenterX = 1 << 2, // If item is not visible: scroll to make the item centered on X axis [rarely used]
ImGuiScrollFlags_KeepVisibleCenterY = 1 << 3, // If item is not visible: scroll to make the item centered on Y axis
ImGuiScrollFlags_AlwaysCenterX = 1 << 4, // Always center the result item on X axis [rarely used]
ImGuiScrollFlags_AlwaysCenterY = 1 << 5, // Always center the result item on Y axis [default for Y axis for appearing window)
ImGuiScrollFlags_NoScrollParent = 1 << 6, // Disable forwarding scrolling to parent window if required to keep item/rect visible (only scroll window the function was applied to).
ImGuiScrollFlags_MaskX_ = ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleCenterX | ImGuiScrollFlags_AlwaysCenterX,
ImGuiScrollFlags_MaskY_ = ImGuiScrollFlags_KeepVisibleEdgeY | ImGuiScrollFlags_KeepVisibleCenterY | ImGuiScrollFlags_AlwaysCenterY,
};
enum ImGuiNavHighlightFlags_
{
ImGuiNavHighlightFlags_None = 0,
ImGuiNavHighlightFlags_TypeDefault = 1 << 0,
ImGuiNavHighlightFlags_TypeThin = 1 << 1,
ImGuiNavHighlightFlags_AlwaysDraw = 1 << 2, // Draw rectangular highlight if (g.NavId == id) _even_ when using the mouse.
ImGuiNavHighlightFlags_NoRounding = 1 << 3,
};
enum ImGuiNavMoveFlags_
{
ImGuiNavMoveFlags_None = 0,
ImGuiNavMoveFlags_LoopX = 1 << 0, // On failed request, restart from opposite side
ImGuiNavMoveFlags_LoopY = 1 << 1,
ImGuiNavMoveFlags_WrapX = 1 << 2, // On failed request, request from opposite side one line down (when NavDir==right) or one line up (when NavDir==left)
ImGuiNavMoveFlags_WrapY = 1 << 3, // This is not super useful but provided for completeness
ImGuiNavMoveFlags_AllowCurrentNavId = 1 << 4, // Allow scoring and considering the current NavId as a move target candidate. This is used when the move source is offset (e.g. pressing PageDown actually needs to send a Up move request, if we are pressing PageDown from the bottom-most item we need to stay in place)
ImGuiNavMoveFlags_AlsoScoreVisibleSet = 1 << 5, // Store alternate result in NavMoveResultLocalVisible that only comprise elements that are already fully visible (used by PageUp/PageDown)
ImGuiNavMoveFlags_ScrollToEdgeY = 1 << 6, // Force scrolling to min/max (used by Home/End) // FIXME-NAV: Aim to remove or reword, probably unnecessary
ImGuiNavMoveFlags_Forwarded = 1 << 7,
ImGuiNavMoveFlags_DebugNoResult = 1 << 8, // Dummy scoring for debug purpose, don't apply result
ImGuiNavMoveFlags_FocusApi = 1 << 9,
ImGuiNavMoveFlags_Tabbing = 1 << 10, // == Focus + Activate if item is Inputable + DontChangeNavHighlight
ImGuiNavMoveFlags_Activate = 1 << 11,
ImGuiNavMoveFlags_DontSetNavHighlight = 1 << 12, // Do not alter the visible state of keyboard vs mouse nav highlight
};
enum ImGuiNavLayer
{
ImGuiNavLayer_Main = 0, // Main scrolling layer
ImGuiNavLayer_Menu = 1, // Menu layer (access with Alt)
ImGuiNavLayer_COUNT
};
struct ImGuiNavItemData
{
ImGuiWindow* Window; // Init,Move // Best candidate window (result->ItemWindow->RootWindowForNav == request->Window)
ImGuiID ID; // Init,Move // Best candidate item ID
ImGuiID FocusScopeId; // Init,Move // Best candidate focus scope ID
ImRect RectRel; // Init,Move // Best candidate bounding box in window relative space
ImGuiItemFlags InFlags; // ????,Move // Best candidate item flags
float DistBox; // Move // Best candidate box distance to current NavId
float DistCenter; // Move // Best candidate center distance to current NavId
float DistAxial; // Move // Best candidate axial distance to current NavId
ImGuiNavItemData() { Clear(); }
void Clear() { Window = NULL; ID = FocusScopeId = 0; InFlags = 0; DistBox = DistCenter = DistAxial = FLT_MAX; }
};
//-----------------------------------------------------------------------------
// [SECTION] Columns support
//-----------------------------------------------------------------------------
// Flags for internal's BeginColumns(). Prefix using BeginTable() nowadays!
enum ImGuiOldColumnFlags_
{
ImGuiOldColumnFlags_None = 0,
ImGuiOldColumnFlags_NoBorder = 1 << 0, // Disable column dividers
ImGuiOldColumnFlags_NoResize = 1 << 1, // Disable resizing columns when clicking on the dividers
ImGuiOldColumnFlags_NoPreserveWidths = 1 << 2, // Disable column width preservation when adjusting columns
ImGuiOldColumnFlags_NoForceWithinWindow = 1 << 3, // Disable forcing columns to fit within window
ImGuiOldColumnFlags_GrowParentContentsSize = 1 << 4, // (WIP) Restore pre-1.51 behavior of extending the parent window contents size but _without affecting the columns width at all_. Will eventually remove.
// Obsolete names (will be removed)
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
ImGuiColumnsFlags_None = ImGuiOldColumnFlags_None,
ImGuiColumnsFlags_NoBorder = ImGuiOldColumnFlags_NoBorder,
ImGuiColumnsFlags_NoResize = ImGuiOldColumnFlags_NoResize,
ImGuiColumnsFlags_NoPreserveWidths = ImGuiOldColumnFlags_NoPreserveWidths,
ImGuiColumnsFlags_NoForceWithinWindow = ImGuiOldColumnFlags_NoForceWithinWindow,
ImGuiColumnsFlags_GrowParentContentsSize = ImGuiOldColumnFlags_GrowParentContentsSize,
#endif
};
struct ImGuiOldColumnData
{
float OffsetNorm; // Column start offset, normalized 0.0 (far left) -> 1.0 (far right)
float OffsetNormBeforeResize;
ImGuiOldColumnFlags Flags; // Not exposed
ImRect ClipRect;
ImGuiOldColumnData() { memset(this, 0, sizeof(*this)); }
};
struct ImGuiOldColumns
{
ImGuiID ID;
ImGuiOldColumnFlags Flags;
bool IsFirstFrame;
bool IsBeingResized;
int Current;
int Count;
float OffMinX, OffMaxX; // Offsets from HostWorkRect.Min.x
float LineMinY, LineMaxY;
float HostCursorPosY; // Backup of CursorPos at the time of BeginColumns()
float HostCursorMaxPosX; // Backup of CursorMaxPos at the time of BeginColumns()
ImRect HostInitialClipRect; // Backup of ClipRect at the time of BeginColumns()
ImRect HostBackupClipRect; // Backup of ClipRect during PushColumnsBackground()/PopColumnsBackground()
ImRect HostBackupParentWorkRect;//Backup of WorkRect at the time of BeginColumns()
ImVector<ImGuiOldColumnData> Columns;
ImDrawListSplitter Splitter;
ImGuiOldColumns() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Multi-select support
//-----------------------------------------------------------------------------
#ifdef IMGUI_HAS_MULTI_SELECT
// <this is filled in 'range_select' branch>
#endif // #ifdef IMGUI_HAS_MULTI_SELECT
//-----------------------------------------------------------------------------
// [SECTION] Docking support
//-----------------------------------------------------------------------------
#ifdef IMGUI_HAS_DOCK
// <this is filled in 'docking' branch>
#endif // #ifdef IMGUI_HAS_DOCK
//-----------------------------------------------------------------------------
// [SECTION] Viewport support
//-----------------------------------------------------------------------------
// ImGuiViewport Private/Internals fields (cardinal sin: we are using inheritance!)
// Every instance of ImGuiViewport is in fact a ImGuiViewportP.
struct ImGuiViewportP : public ImGuiViewport
{
int DrawListsLastFrame[2]; // Last frame number the background (0) and foreground (1) draw lists were used
ImDrawList* DrawLists[2]; // Convenience background (0) and foreground (1) draw lists. We use them to draw software mouser cursor when io.MouseDrawCursor is set and to draw most debug overlays.
ImDrawData DrawDataP;
ImDrawDataBuilder DrawDataBuilder;
ImVec2 WorkOffsetMin; // Work Area: Offset from Pos to top-left corner of Work Area. Generally (0,0) or (0,+main_menu_bar_height). Work Area is Full Area but without menu-bars/status-bars (so WorkArea always fit inside Pos/Size!)
ImVec2 WorkOffsetMax; // Work Area: Offset from Pos+Size to bottom-right corner of Work Area. Generally (0,0) or (0,-status_bar_height).
ImVec2 BuildWorkOffsetMin; // Work Area: Offset being built during current frame. Generally >= 0.0f.
ImVec2 BuildWorkOffsetMax; // Work Area: Offset being built during current frame. Generally <= 0.0f.
ImGuiViewportP() { DrawListsLastFrame[0] = DrawListsLastFrame[1] = -1; DrawLists[0] = DrawLists[1] = NULL; }
~ImGuiViewportP() { if (DrawLists[0]) IM_DELETE(DrawLists[0]); if (DrawLists[1]) IM_DELETE(DrawLists[1]); }
// Calculate work rect pos/size given a set of offset (we have 1 pair of offset for rect locked from last frame data, and 1 pair for currently building rect)
ImVec2 CalcWorkRectPos(const ImVec2& off_min) const { return ImVec2(Pos.x + off_min.x, Pos.y + off_min.y); }
ImVec2 CalcWorkRectSize(const ImVec2& off_min, const ImVec2& off_max) const { return ImVec2(ImMax(0.0f, Size.x - off_min.x + off_max.x), ImMax(0.0f, Size.y - off_min.y + off_max.y)); }
void UpdateWorkRect() { WorkPos = CalcWorkRectPos(WorkOffsetMin); WorkSize = CalcWorkRectSize(WorkOffsetMin, WorkOffsetMax); } // Update public fields
// Helpers to retrieve ImRect (we don't need to store BuildWorkRect as every access tend to change it, hence the code asymmetry)
ImRect GetMainRect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
ImRect GetWorkRect() const { return ImRect(WorkPos.x, WorkPos.y, WorkPos.x + WorkSize.x, WorkPos.y + WorkSize.y); }
ImRect GetBuildWorkRect() const { ImVec2 pos = CalcWorkRectPos(BuildWorkOffsetMin); ImVec2 size = CalcWorkRectSize(BuildWorkOffsetMin, BuildWorkOffsetMax); return ImRect(pos.x, pos.y, pos.x + size.x, pos.y + size.y); }
};
//-----------------------------------------------------------------------------
// [SECTION] Settings support
//-----------------------------------------------------------------------------
// Windows data saved in imgui.ini file
// Because we never destroy or rename ImGuiWindowSettings, we can store the names in a separate buffer easily.
// (this is designed to be stored in a ImChunkStream buffer, with the variable-length Name following our structure)
struct ImGuiWindowSettings
{
ImGuiID ID;
ImVec2ih Pos;
ImVec2ih Size;
bool Collapsed;
bool WantApply; // Set when loaded from .ini data (to enable merging/loading .ini data into an already running context)
bool WantDelete; // Set to invalidate/delete the settings entry
ImGuiWindowSettings() { memset(this, 0, sizeof(*this)); }
char* GetName() { return (char*)(this + 1); }
};
struct ImGuiSettingsHandler
{
const char* TypeName; // Short description stored in .ini file. Disallowed characters: '[' ']'
ImGuiID TypeHash; // == ImHashStr(TypeName)
void (*ClearAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Clear all settings data
void (*ReadInitFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called before reading (in registration order)
void* (*ReadOpenFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, const char* name); // Read: Called when entering into a new ini entry e.g. "[Window][Name]"
void (*ReadLineFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, void* entry, const char* line); // Read: Called for every line of text within an ini entry
void (*ApplyAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called after reading (in registration order)
void (*WriteAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* out_buf); // Write: Output every entries into 'out_buf'
void* UserData;
ImGuiSettingsHandler() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Localization support
//-----------------------------------------------------------------------------
// This is experimental and not officially supported, it'll probably fall short of features, if/when it does we may backtrack.
enum ImGuiLocKey : int
{
ImGuiLocKey_TableSizeOne,
ImGuiLocKey_TableSizeAllFit,
ImGuiLocKey_TableSizeAllDefault,
ImGuiLocKey_TableResetOrder,
ImGuiLocKey_WindowingMainMenuBar,
ImGuiLocKey_WindowingPopup,
ImGuiLocKey_WindowingUntitled,
ImGuiLocKey_COUNT
};
struct ImGuiLocEntry
{
ImGuiLocKey Key;
const char* Text;
};
//-----------------------------------------------------------------------------
// [SECTION] Metrics, Debug Tools
//-----------------------------------------------------------------------------
enum ImGuiDebugLogFlags_
{
// Event types
ImGuiDebugLogFlags_None = 0,
ImGuiDebugLogFlags_EventActiveId = 1 << 0,
ImGuiDebugLogFlags_EventFocus = 1 << 1,
ImGuiDebugLogFlags_EventPopup = 1 << 2,
ImGuiDebugLogFlags_EventNav = 1 << 3,
ImGuiDebugLogFlags_EventClipper = 1 << 4,
ImGuiDebugLogFlags_EventIO = 1 << 5,
ImGuiDebugLogFlags_EventMask_ = ImGuiDebugLogFlags_EventActiveId | ImGuiDebugLogFlags_EventFocus | ImGuiDebugLogFlags_EventPopup | ImGuiDebugLogFlags_EventNav | ImGuiDebugLogFlags_EventClipper | ImGuiDebugLogFlags_EventIO,
ImGuiDebugLogFlags_OutputToTTY = 1 << 10, // Also send output to TTY
};
struct ImGuiMetricsConfig
{
bool ShowDebugLog = false;
bool ShowStackTool = false;
bool ShowWindowsRects = false;
bool ShowWindowsBeginOrder = false;
bool ShowTablesRects = false;
bool ShowDrawCmdMesh = true;
bool ShowDrawCmdBoundingBoxes = true;
bool ShowAtlasTintedWithTextColor = false;
int ShowWindowsRectsType = -1;
int ShowTablesRectsType = -1;
};
struct ImGuiStackLevelInfo
{
ImGuiID ID;
ImS8 QueryFrameCount; // >= 1: Query in progress
bool QuerySuccess; // Obtained result from DebugHookIdInfo()
ImGuiDataType DataType : 8;
char Desc[57]; // Arbitrarily sized buffer to hold a result (FIXME: could replace Results[] with a chunk stream?) FIXME: Now that we added CTRL+C this should be fixed.
ImGuiStackLevelInfo() { memset(this, 0, sizeof(*this)); }
};
// State for Stack tool queries
struct ImGuiStackTool
{
int LastActiveFrame;
int StackLevel; // -1: query stack and resize Results, >= 0: individual stack level
ImGuiID QueryId; // ID to query details for
ImVector<ImGuiStackLevelInfo> Results;
bool CopyToClipboardOnCtrlC;
float CopyToClipboardLastTime;
ImGuiStackTool() { memset(this, 0, sizeof(*this)); CopyToClipboardLastTime = -FLT_MAX; }
};
//-----------------------------------------------------------------------------
// [SECTION] Generic context hooks
//-----------------------------------------------------------------------------
typedef void (*ImGuiContextHookCallback)(ImGuiContext* ctx, ImGuiContextHook* hook);
enum ImGuiContextHookType { ImGuiContextHookType_NewFramePre, ImGuiContextHookType_NewFramePost, ImGuiContextHookType_EndFramePre, ImGuiContextHookType_EndFramePost, ImGuiContextHookType_RenderPre, ImGuiContextHookType_RenderPost, ImGuiContextHookType_Shutdown, ImGuiContextHookType_PendingRemoval_ };
struct ImGuiContextHook
{
ImGuiID HookId; // A unique ID assigned by AddContextHook()
ImGuiContextHookType Type;
ImGuiID Owner;
ImGuiContextHookCallback Callback;
void* UserData;
ImGuiContextHook() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] ImGuiContext (main Dear ImGui context)
//-----------------------------------------------------------------------------
struct ImGuiContext
{
bool Initialized;
bool FontAtlasOwnedByContext; // IO.Fonts-> is owned by the ImGuiContext and will be destructed along with it.
ImGuiIO IO;
ImVector<ImGuiInputEvent> InputEventsQueue; // Input events which will be tricked/written into IO structure.
ImVector<ImGuiInputEvent> InputEventsTrail; // Past input events processed in NewFrame(). This is to allow domain-specific application to access e.g mouse/pen trail.
ImGuiStyle Style;
ImFont* Font; // (Shortcut) == FontStack.empty() ? IO.Font : FontStack.back()
float FontSize; // (Shortcut) == FontBaseSize * g.CurrentWindow->FontWindowScale == window->FontSize(). Text height for current window.
float FontBaseSize; // (Shortcut) == IO.FontGlobalScale * Font->Scale * Font->FontSize. Base text height.
ImDrawListSharedData DrawListSharedData;
double Time;
int FrameCount;
int FrameCountEnded;
int FrameCountRendered;
bool WithinFrameScope; // Set by NewFrame(), cleared by EndFrame()
bool WithinFrameScopeWithImplicitWindow; // Set by NewFrame(), cleared by EndFrame() when the implicit debug window has been pushed
bool WithinEndChild; // Set within EndChild()
bool GcCompactAll; // Request full GC
bool TestEngineHookItems; // Will call test engine hooks: ImGuiTestEngineHook_ItemAdd(), ImGuiTestEngineHook_ItemInfo(), ImGuiTestEngineHook_Log()
void* TestEngine; // Test engine user data
// Windows state
ImVector<ImGuiWindow*> Windows; // Windows, sorted in display order, back to front
ImVector<ImGuiWindow*> WindowsFocusOrder; // Root windows, sorted in focus order, back to front.
ImVector<ImGuiWindow*> WindowsTempSortBuffer; // Temporary buffer used in EndFrame() to reorder windows so parents are kept before their child
ImVector<ImGuiWindowStackData> CurrentWindowStack;
ImGuiStorage WindowsById; // Map window's ImGuiID to ImGuiWindow*
int WindowsActiveCount; // Number of unique windows submitted by frame
ImVec2 WindowsHoverPadding; // Padding around resizable windows for which hovering on counts as hovering the window == ImMax(style.TouchExtraPadding, WINDOWS_HOVER_PADDING)
ImGuiWindow* CurrentWindow; // Window being drawn into
ImGuiWindow* HoveredWindow; // Window the mouse is hovering. Will typically catch mouse inputs.
ImGuiWindow* HoveredWindowUnderMovingWindow; // Hovered window ignoring MovingWindow. Only set if MovingWindow is set.
ImGuiWindow* MovingWindow; // Track the window we clicked on (in order to preserve focus). The actual window that is moved is generally MovingWindow->RootWindow.
ImGuiWindow* WheelingWindow; // Track the window we started mouse-wheeling on. Until a timer elapse or mouse has moved, generally keep scrolling the same window even if during the course of scrolling the mouse ends up hovering a child window.
ImVec2 WheelingWindowRefMousePos;
int WheelingWindowStartFrame; // This may be set one frame before WheelingWindow is != NULL
float WheelingWindowReleaseTimer;
ImVec2 WheelingWindowWheelRemainder;
ImVec2 WheelingAxisAvg;
// Item/widgets state and tracking information
ImGuiID DebugHookIdInfo; // Will call core hooks: DebugHookIdInfo() from GetID functions, used by Stack Tool [next HoveredId/ActiveId to not pull in an extra cache-line]
ImGuiID HoveredId; // Hovered widget, filled during the frame
ImGuiID HoveredIdPreviousFrame;
bool HoveredIdAllowOverlap;
bool HoveredIdDisabled; // At least one widget passed the rect test, but has been discarded by disabled flag or popup inhibit. May be true even if HoveredId == 0.
float HoveredIdTimer; // Measure contiguous hovering time
float HoveredIdNotActiveTimer; // Measure contiguous hovering time where the item has not been active
ImGuiID ActiveId; // Active widget
ImGuiID ActiveIdIsAlive; // Active widget has been seen this frame (we can't use a bool as the ActiveId may change within the frame)
float ActiveIdTimer;
bool ActiveIdIsJustActivated; // Set at the time of activation for one frame
bool ActiveIdAllowOverlap; // Active widget allows another widget to steal active id (generally for overlapping widgets, but not always)
bool ActiveIdNoClearOnFocusLoss; // Disable losing active id if the active id window gets unfocused.
bool ActiveIdHasBeenPressedBefore; // Track whether the active id led to a press (this is to allow changing between PressOnClick and PressOnRelease without pressing twice). Used by range_select branch.
bool ActiveIdHasBeenEditedBefore; // Was the value associated to the widget Edited over the course of the Active state.
bool ActiveIdHasBeenEditedThisFrame;
ImVec2 ActiveIdClickOffset; // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
ImGuiWindow* ActiveIdWindow;
ImGuiInputSource ActiveIdSource; // Activating with mouse or nav (gamepad/keyboard)
int ActiveIdMouseButton;
ImGuiID ActiveIdPreviousFrame;
bool ActiveIdPreviousFrameIsAlive;
bool ActiveIdPreviousFrameHasBeenEditedBefore;
ImGuiWindow* ActiveIdPreviousFrameWindow;
ImGuiID LastActiveId; // Store the last non-zero ActiveId, useful for animation.
float LastActiveIdTimer; // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
// [EXPERIMENTAL] Key/Input Ownership + Shortcut Routing system
// - The idea is that instead of "eating" a given key, we can link to an owner.
// - Input query can then read input by specifying ImGuiKeyOwner_Any (== 0), ImGuiKeyOwner_None (== -1) or a custom ID.
// - Routing is requested ahead of time for a given chord (Key + Mods) and granted in NewFrame().
ImGuiKeyOwnerData KeysOwnerData[ImGuiKey_NamedKey_COUNT];
ImGuiKeyRoutingTable KeysRoutingTable;
ImU32 ActiveIdUsingNavDirMask; // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
bool ActiveIdUsingAllKeyboardKeys; // Active widget will want to read all keyboard keys inputs. (FIXME: This is a shortcut for not taking ownership of 100+ keys but perhaps best to not have the inconsistency)
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
ImU32 ActiveIdUsingNavInputMask; // If you used this. Since (IMGUI_VERSION_NUM >= 18804) : 'g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel);' becomes 'SetKeyOwner(ImGuiKey_Escape, g.ActiveId) and/or SetKeyOwner(ImGuiKey_NavGamepadCancel, g.ActiveId);'
#endif
// Next window/item data
ImGuiID CurrentFocusScopeId; // == g.FocusScopeStack.back()
ImGuiItemFlags CurrentItemFlags; // == g.ItemFlagsStack.back()
ImGuiID DebugLocateId; // Storage for DebugLocateItemOnHover() feature: this is read by ItemAdd() so we keep it in a hot/cached location
ImGuiNextItemData NextItemData; // Storage for SetNextItem** functions
ImGuiLastItemData LastItemData; // Storage for last submitted item (setup by ItemAdd)
ImGuiNextWindowData NextWindowData; // Storage for SetNextWindow** functions
// Shared stacks
ImVector<ImGuiColorMod> ColorStack; // Stack for PushStyleColor()/PopStyleColor() - inherited by Begin()
ImVector<ImGuiStyleMod> StyleVarStack; // Stack for PushStyleVar()/PopStyleVar() - inherited by Begin()
ImVector<ImFont*> FontStack; // Stack for PushFont()/PopFont() - inherited by Begin()
ImVector<ImGuiID> FocusScopeStack; // Stack for PushFocusScope()/PopFocusScope() - inherited by BeginChild(), pushed into by Begin()
ImVector<ImGuiItemFlags>ItemFlagsStack; // Stack for PushItemFlag()/PopItemFlag() - inherited by Begin()
ImVector<ImGuiGroupData>GroupStack; // Stack for BeginGroup()/EndGroup() - not inherited by Begin()
ImVector<ImGuiPopupData>OpenPopupStack; // Which popups are open (persistent)
ImVector<ImGuiPopupData>BeginPopupStack; // Which level of BeginPopup() we are in (reset every frame)
int BeginMenuCount;
// Viewports
ImVector<ImGuiViewportP*> Viewports; // Active viewports (Size==1 in 'master' branch). Each viewports hold their copy of ImDrawData.
// Gamepad/keyboard Navigation
ImGuiWindow* NavWindow; // Focused window for navigation. Could be called 'FocusedWindow'
ImGuiID NavId; // Focused item for navigation
ImGuiID NavFocusScopeId; // Identify a selection scope (selection code often wants to "clear other items" when landing on an item of the selection set)
ImGuiID NavActivateId; // ~~ (g.ActiveId == 0) && (IsKeyPressed(ImGuiKey_Space) || IsKeyDown(ImGuiKey_Enter) || IsKeyPressed(ImGuiKey_NavGamepadActivate)) ? NavId : 0, also set when calling ActivateItem()
ImGuiID NavActivateDownId; // ~~ IsKeyDown(ImGuiKey_Space) || IsKeyDown(ImGuiKey_Enter) || IsKeyDown(ImGuiKey_NavGamepadActivate) ? NavId : 0
ImGuiID NavActivatePressedId; // ~~ IsKeyPressed(ImGuiKey_Space) || IsKeyPressed(ImGuiKey_Enter) || IsKeyPressed(ImGuiKey_NavGamepadActivate) ? NavId : 0 (no repeat)
ImGuiActivateFlags NavActivateFlags;
ImGuiID NavJustMovedToId; // Just navigated to this id (result of a successfully MoveRequest).
ImGuiID NavJustMovedToFocusScopeId; // Just navigated to this focus scope id (result of a successfully MoveRequest).
ImGuiKeyChord NavJustMovedToKeyMods;
ImGuiID NavNextActivateId; // Set by ActivateItem(), queued until next frame.
ImGuiActivateFlags NavNextActivateFlags;
ImGuiInputSource NavInputSource; // Keyboard or Gamepad mode? THIS WILL ONLY BE None or NavGamepad or NavKeyboard.
ImGuiNavLayer NavLayer; // Layer we are navigating on. For now the system is hard-coded for 0=main contents and 1=menu/title bar, may expose layers later.
bool NavIdIsAlive; // Nav widget has been seen this frame ~~ NavRectRel is valid
bool NavMousePosDirty; // When set we will update mouse position if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) if set (NB: this not enabled by default)
bool NavDisableHighlight; // When user starts using mouse, we hide gamepad/keyboard highlight (NB: but they are still available, which is why NavDisableHighlight isn't always != NavDisableMouseHover)
bool NavDisableMouseHover; // When user starts using gamepad/keyboard, we hide mouse hovering highlight until mouse is touched again.
// Navigation: Init & Move Requests
bool NavAnyRequest; // ~~ NavMoveRequest || NavInitRequest this is to perform early out in ItemAdd()
bool NavInitRequest; // Init request for appearing window to select first item
bool NavInitRequestFromMove;
ImGuiID NavInitResultId; // Init request result (first item of the window, or one for which SetItemDefaultFocus() was called)
ImRect NavInitResultRectRel; // Init request result rectangle (relative to parent window)
bool NavMoveSubmitted; // Move request submitted, will process result on next NewFrame()
bool NavMoveScoringItems; // Move request submitted, still scoring incoming items
bool NavMoveForwardToNextFrame;
ImGuiNavMoveFlags NavMoveFlags;
ImGuiScrollFlags NavMoveScrollFlags;
ImGuiKeyChord NavMoveKeyMods;
ImGuiDir NavMoveDir; // Direction of the move request (left/right/up/down)
ImGuiDir NavMoveDirForDebug;
ImGuiDir NavMoveClipDir; // FIXME-NAV: Describe the purpose of this better. Might want to rename?
ImRect NavScoringRect; // Rectangle used for scoring, in screen space. Based of window->NavRectRel[], modified for directional navigation scoring.
ImRect NavScoringNoClipRect; // Some nav operations (such as PageUp/PageDown) enforce a region which clipper will attempt to always keep submitted
int NavScoringDebugCount; // Metrics for debugging
int NavTabbingDir; // Generally -1 or +1, 0 when tabbing without a nav id
int NavTabbingCounter; // >0 when counting items for tabbing
ImGuiNavItemData NavMoveResultLocal; // Best move request candidate within NavWindow
ImGuiNavItemData NavMoveResultLocalVisible; // Best move request candidate within NavWindow that are mostly visible (when using ImGuiNavMoveFlags_AlsoScoreVisibleSet flag)
ImGuiNavItemData NavMoveResultOther; // Best move request candidate within NavWindow's flattened hierarchy (when using ImGuiWindowFlags_NavFlattened flag)
ImGuiNavItemData NavTabbingResultFirst; // First tabbing request candidate within NavWindow and flattened hierarchy
// Navigation: Windowing (CTRL+TAB for list, or Menu button + keys or directional pads to move/resize)
ImGuiKeyChord ConfigNavWindowingKeyNext; // = ImGuiMod_Ctrl | ImGuiKey_Tab, for reconfiguration (see #4828)
ImGuiKeyChord ConfigNavWindowingKeyPrev; // = ImGuiMod_Ctrl | ImGuiMod_Shift | ImGuiKey_Tab
ImGuiWindow* NavWindowingTarget; // Target window when doing CTRL+Tab (or Pad Menu + FocusPrev/Next), this window is temporarily displayed top-most!
ImGuiWindow* NavWindowingTargetAnim; // Record of last valid NavWindowingTarget until DimBgRatio and NavWindowingHighlightAlpha becomes 0.0f, so the fade-out can stay on it.
ImGuiWindow* NavWindowingListWindow; // Internal window actually listing the CTRL+Tab contents
float NavWindowingTimer;
float NavWindowingHighlightAlpha;
bool NavWindowingToggleLayer;
ImVec2 NavWindowingAccumDeltaPos;
ImVec2 NavWindowingAccumDeltaSize;
// Render
float DimBgRatio; // 0.0..1.0 animation when fading in a dimming background (for modal window and CTRL+TAB list)
ImGuiMouseCursor MouseCursor;
// Drag and Drop
bool DragDropActive;
bool DragDropWithinSource; // Set when within a BeginDragDropXXX/EndDragDropXXX block for a drag source.
bool DragDropWithinTarget; // Set when within a BeginDragDropXXX/EndDragDropXXX block for a drag target.
ImGuiDragDropFlags DragDropSourceFlags;
int DragDropSourceFrameCount;
int DragDropMouseButton;
ImGuiPayload DragDropPayload;
ImRect DragDropTargetRect; // Store rectangle of current target candidate (we favor small targets when overlapping)
ImGuiID DragDropTargetId;
ImGuiDragDropFlags DragDropAcceptFlags;
float DragDropAcceptIdCurrRectSurface; // Target item surface (we resolve overlapping targets by prioritizing the smaller surface)
ImGuiID DragDropAcceptIdCurr; // Target item id (set at the time of accepting the payload)
ImGuiID DragDropAcceptIdPrev; // Target item id from previous frame (we need to store this to allow for overlapping drag and drop targets)
int DragDropAcceptFrameCount; // Last time a target expressed a desire to accept the source
ImGuiID DragDropHoldJustPressedId; // Set when holding a payload just made ButtonBehavior() return a press.
ImVector<unsigned char> DragDropPayloadBufHeap; // We don't expose the ImVector<> directly, ImGuiPayload only holds pointer+size
unsigned char DragDropPayloadBufLocal[16]; // Local buffer for small payloads
// Clipper
int ClipperTempDataStacked;
ImVector<ImGuiListClipperData> ClipperTempData;
// Tables
ImGuiTable* CurrentTable;
int TablesTempDataStacked; // Temporary table data size (because we leave previous instances undestructed, we generally don't use TablesTempData.Size)
ImVector<ImGuiTableTempData> TablesTempData; // Temporary table data (buffers reused/shared across instances, support nesting)
ImPool<ImGuiTable> Tables; // Persistent table data
ImVector<float> TablesLastTimeActive; // Last used timestamp of each tables (SOA, for efficient GC)
ImVector<ImDrawChannel> DrawChannelsTempMergeBuffer;
// Tab bars
ImGuiTabBar* CurrentTabBar;
ImPool<ImGuiTabBar> TabBars;
ImVector<ImGuiPtrOrIndex> CurrentTabBarStack;
ImVector<ImGuiShrinkWidthItem> ShrinkWidthBuffer;
// Hover Delay system
ImGuiID HoverDelayId;
ImGuiID HoverDelayIdPreviousFrame;
float HoverDelayTimer; // Currently used IsItemHovered(), generally inferred from g.HoveredIdTimer but kept uncleared until clear timer elapse.
float HoverDelayClearTimer; // Currently used IsItemHovered(): grace time before g.TooltipHoverTimer gets cleared.
// Widget state
ImVec2 MouseLastValidPos;
ImGuiInputTextState InputTextState;
ImFont InputTextPasswordFont;
ImGuiID TempInputId; // Temporary text input when CTRL+clicking on a slider, etc.
ImGuiColorEditFlags ColorEditOptions; // Store user options for color edit widgets
ImGuiID ColorEditCurrentID; // Set temporarily while inside of the parent-most ColorEdit4/ColorPicker4 (because they call each others).
ImGuiID ColorEditSavedID; // ID we are saving/restoring HS for
float ColorEditSavedHue; // Backup of last Hue associated to LastColor, so we can restore Hue in lossy RGB<>HSV round trips
float ColorEditSavedSat; // Backup of last Saturation associated to LastColor, so we can restore Saturation in lossy RGB<>HSV round trips
ImU32 ColorEditSavedColor; // RGB value with alpha set to 0.
ImVec4 ColorPickerRef; // Initial/reference color at the time of opening the color picker.
ImGuiComboPreviewData ComboPreviewData;
float SliderGrabClickOffset;
float SliderCurrentAccum; // Accumulated slider delta when using navigation controls.
bool SliderCurrentAccumDirty; // Has the accumulated slider delta changed since last time we tried to apply it?
bool DragCurrentAccumDirty;
float DragCurrentAccum; // Accumulator for dragging modification. Always high-precision, not rounded by end-user precision settings
float DragSpeedDefaultRatio; // If speed == 0.0f, uses (max-min) * DragSpeedDefaultRatio
float ScrollbarClickDeltaToGrabCenter; // Distance between mouse and center of grab box, normalized in parent space. Use storage?
float DisabledAlphaBackup; // Backup for style.Alpha for BeginDisabled()
short DisabledStackSize;
short TooltipOverrideCount;
ImVector<char> ClipboardHandlerData; // If no custom clipboard handler is defined
ImVector<ImGuiID> MenusIdSubmittedThisFrame; // A list of menu IDs that were rendered at least once
// Platform support
ImGuiPlatformImeData PlatformImeData; // Data updated by current frame
ImGuiPlatformImeData PlatformImeDataPrev; // Previous frame data (when changing we will call io.SetPlatformImeDataFn
char PlatformLocaleDecimalPoint; // '.' or *localeconv()->decimal_point
// Settings
bool SettingsLoaded;
float SettingsDirtyTimer; // Save .ini Settings to memory when time reaches zero
ImGuiTextBuffer SettingsIniData; // In memory .ini settings
ImVector<ImGuiSettingsHandler> SettingsHandlers; // List of .ini settings handlers
ImChunkStream<ImGuiWindowSettings> SettingsWindows; // ImGuiWindow .ini settings entries
ImChunkStream<ImGuiTableSettings> SettingsTables; // ImGuiTable .ini settings entries
ImVector<ImGuiContextHook> Hooks; // Hooks for extensions (e.g. test engine)
ImGuiID HookIdNext; // Next available HookId
// Localization
const char* LocalizationTable[ImGuiLocKey_COUNT];
// Capture/Logging
bool LogEnabled; // Currently capturing
ImGuiLogType LogType; // Capture target
ImFileHandle LogFile; // If != NULL log to stdout/ file
ImGuiTextBuffer LogBuffer; // Accumulation buffer when log to clipboard. This is pointer so our GImGui static constructor doesn't call heap allocators.
const char* LogNextPrefix;
const char* LogNextSuffix;
float LogLinePosY;
bool LogLineFirstItem;
int LogDepthRef;
int LogDepthToExpand;
int LogDepthToExpandDefault; // Default/stored value for LogDepthMaxExpand if not specified in the LogXXX function call.
// Debug Tools
ImGuiDebugLogFlags DebugLogFlags;
ImGuiTextBuffer DebugLogBuf;
ImGuiTextIndex DebugLogIndex;
ImU8 DebugLogClipperAutoDisableFrames;
ImU8 DebugLocateFrames; // For DebugLocateItemOnHover(). This is used together with DebugLocateId which is in a hot/cached spot above.
ImS8 DebugBeginReturnValueCullDepth; // Cycle between 0..9 then wrap around.
bool DebugItemPickerActive; // Item picker is active (started with DebugStartItemPicker())
ImU8 DebugItemPickerMouseButton;
ImGuiID DebugItemPickerBreakId; // Will call IM_DEBUG_BREAK() when encountering this ID
ImGuiMetricsConfig DebugMetricsConfig;
ImGuiStackTool DebugStackTool;
// Misc
float FramerateSecPerFrame[60]; // Calculate estimate of framerate for user over the last 60 frames..
int FramerateSecPerFrameIdx;
int FramerateSecPerFrameCount;
float FramerateSecPerFrameAccum;
int WantCaptureMouseNextFrame; // Explicit capture override via SetNextFrameWantCaptureMouse()/SetNextFrameWantCaptureKeyboard(). Default to -1.
int WantCaptureKeyboardNextFrame; // "
int WantTextInputNextFrame;
ImVector<char> TempBuffer; // Temporary text buffer
ImGuiContext(ImFontAtlas* shared_font_atlas)
{
IO.Ctx = this;
InputTextState.Ctx = this;
Initialized = false;
FontAtlasOwnedByContext = shared_font_atlas ? false : true;
Font = NULL;
FontSize = FontBaseSize = 0.0f;
IO.Fonts = shared_font_atlas ? shared_font_atlas : IM_NEW(ImFontAtlas)();
Time = 0.0f;
FrameCount = 0;
FrameCountEnded = FrameCountRendered = -1;
WithinFrameScope = WithinFrameScopeWithImplicitWindow = WithinEndChild = false;
GcCompactAll = false;
TestEngineHookItems = false;
TestEngine = NULL;
WindowsActiveCount = 0;
CurrentWindow = NULL;
HoveredWindow = NULL;
HoveredWindowUnderMovingWindow = NULL;
MovingWindow = NULL;
WheelingWindow = NULL;
WheelingWindowStartFrame = -1;
WheelingWindowReleaseTimer = 0.0f;
DebugHookIdInfo = 0;
HoveredId = HoveredIdPreviousFrame = 0;
HoveredIdAllowOverlap = false;
HoveredIdDisabled = false;
HoveredIdTimer = HoveredIdNotActiveTimer = 0.0f;
ActiveId = 0;
ActiveIdIsAlive = 0;
ActiveIdTimer = 0.0f;
ActiveIdIsJustActivated = false;
ActiveIdAllowOverlap = false;
ActiveIdNoClearOnFocusLoss = false;
ActiveIdHasBeenPressedBefore = false;
ActiveIdHasBeenEditedBefore = false;
ActiveIdHasBeenEditedThisFrame = false;
ActiveIdClickOffset = ImVec2(-1, -1);
ActiveIdWindow = NULL;
ActiveIdSource = ImGuiInputSource_None;
ActiveIdMouseButton = -1;
ActiveIdPreviousFrame = 0;
ActiveIdPreviousFrameIsAlive = false;
ActiveIdPreviousFrameHasBeenEditedBefore = false;
ActiveIdPreviousFrameWindow = NULL;
LastActiveId = 0;
LastActiveIdTimer = 0.0f;
ActiveIdUsingNavDirMask = 0x00;
ActiveIdUsingAllKeyboardKeys = false;
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
ActiveIdUsingNavInputMask = 0x00;
#endif
CurrentFocusScopeId = 0;
CurrentItemFlags = ImGuiItemFlags_None;
BeginMenuCount = 0;
NavWindow = NULL;
NavId = NavFocusScopeId = NavActivateId = NavActivateDownId = NavActivatePressedId = 0;
NavJustMovedToId = NavJustMovedToFocusScopeId = NavNextActivateId = 0;
NavActivateFlags = NavNextActivateFlags = ImGuiActivateFlags_None;
NavJustMovedToKeyMods = ImGuiMod_None;
NavInputSource = ImGuiInputSource_None;
NavLayer = ImGuiNavLayer_Main;
NavIdIsAlive = false;
NavMousePosDirty = false;
NavDisableHighlight = true;
NavDisableMouseHover = false;
NavAnyRequest = false;
NavInitRequest = false;
NavInitRequestFromMove = false;
NavInitResultId = 0;
NavMoveSubmitted = false;
NavMoveScoringItems = false;
NavMoveForwardToNextFrame = false;
NavMoveFlags = ImGuiNavMoveFlags_None;
NavMoveScrollFlags = ImGuiScrollFlags_None;
NavMoveKeyMods = ImGuiMod_None;
NavMoveDir = NavMoveDirForDebug = NavMoveClipDir = ImGuiDir_None;
NavScoringDebugCount = 0;
NavTabbingDir = 0;
NavTabbingCounter = 0;
ConfigNavWindowingKeyNext = ImGuiMod_Ctrl | ImGuiKey_Tab;
ConfigNavWindowingKeyPrev = ImGuiMod_Ctrl | ImGuiMod_Shift | ImGuiKey_Tab;
NavWindowingTarget = NavWindowingTargetAnim = NavWindowingListWindow = NULL;
NavWindowingTimer = NavWindowingHighlightAlpha = 0.0f;
NavWindowingToggleLayer = false;
DimBgRatio = 0.0f;
MouseCursor = ImGuiMouseCursor_Arrow;
DragDropActive = DragDropWithinSource = DragDropWithinTarget = false;
DragDropSourceFlags = ImGuiDragDropFlags_None;
DragDropSourceFrameCount = -1;
DragDropMouseButton = -1;
DragDropTargetId = 0;
DragDropAcceptFlags = ImGuiDragDropFlags_None;
DragDropAcceptIdCurrRectSurface = 0.0f;
DragDropAcceptIdPrev = DragDropAcceptIdCurr = 0;
DragDropAcceptFrameCount = -1;
DragDropHoldJustPressedId = 0;
memset(DragDropPayloadBufLocal, 0, sizeof(DragDropPayloadBufLocal));
ClipperTempDataStacked = 0;
CurrentTable = NULL;
TablesTempDataStacked = 0;
CurrentTabBar = NULL;
HoverDelayId = HoverDelayIdPreviousFrame = 0;
HoverDelayTimer = HoverDelayClearTimer = 0.0f;
TempInputId = 0;
ColorEditOptions = ImGuiColorEditFlags_DefaultOptions_;
ColorEditCurrentID = ColorEditSavedID = 0;
ColorEditSavedHue = ColorEditSavedSat = 0.0f;
ColorEditSavedColor = 0;
SliderGrabClickOffset = 0.0f;
SliderCurrentAccum = 0.0f;
SliderCurrentAccumDirty = false;
DragCurrentAccumDirty = false;
DragCurrentAccum = 0.0f;
DragSpeedDefaultRatio = 1.0f / 100.0f;
ScrollbarClickDeltaToGrabCenter = 0.0f;
DisabledAlphaBackup = 0.0f;
DisabledStackSize = 0;
TooltipOverrideCount = 0;
PlatformImeData.InputPos = ImVec2(0.0f, 0.0f);
PlatformImeDataPrev.InputPos = ImVec2(-1.0f, -1.0f); // Different to ensure initial submission
PlatformLocaleDecimalPoint = '.';
SettingsLoaded = false;
SettingsDirtyTimer = 0.0f;
HookIdNext = 0;
memset(LocalizationTable, 0, sizeof(LocalizationTable));
LogEnabled = false;
LogType = ImGuiLogType_None;
LogNextPrefix = LogNextSuffix = NULL;
LogFile = NULL;
LogLinePosY = FLT_MAX;
LogLineFirstItem = false;
LogDepthRef = 0;
LogDepthToExpand = LogDepthToExpandDefault = 2;
DebugLogFlags = ImGuiDebugLogFlags_OutputToTTY;
DebugLocateId = 0;
DebugLogClipperAutoDisableFrames = 0;
DebugLocateFrames = 0;
DebugBeginReturnValueCullDepth = -1;
DebugItemPickerActive = false;
DebugItemPickerMouseButton = ImGuiMouseButton_Left;
DebugItemPickerBreakId = 0;
memset(FramerateSecPerFrame, 0, sizeof(FramerateSecPerFrame));
FramerateSecPerFrameIdx = FramerateSecPerFrameCount = 0;
FramerateSecPerFrameAccum = 0.0f;
WantCaptureMouseNextFrame = WantCaptureKeyboardNextFrame = WantTextInputNextFrame = -1;
}
};
//-----------------------------------------------------------------------------
// [SECTION] ImGuiWindowTempData, ImGuiWindow
//-----------------------------------------------------------------------------
// Transient per-window data, reset at the beginning of the frame. This used to be called ImGuiDrawContext, hence the DC variable name in ImGuiWindow.
// (That's theory, in practice the delimitation between ImGuiWindow and ImGuiWindowTempData is quite tenuous and could be reconsidered..)
// (This doesn't need a constructor because we zero-clear it as part of ImGuiWindow and all frame-temporary data are setup on Begin)
struct IMGUI_API ImGuiWindowTempData
{
// Layout
ImVec2 CursorPos; // Current emitting position, in absolute coordinates.
ImVec2 CursorPosPrevLine;
ImVec2 CursorStartPos; // Initial position after Begin(), generally ~ window position + WindowPadding.
ImVec2 CursorMaxPos; // Used to implicitly calculate ContentSize at the beginning of next frame, for scrolling range and auto-resize. Always growing during the frame.
ImVec2 IdealMaxPos; // Used to implicitly calculate ContentSizeIdeal at the beginning of next frame, for auto-resize only. Always growing during the frame.
ImVec2 CurrLineSize;
ImVec2 PrevLineSize;
float CurrLineTextBaseOffset; // Baseline offset (0.0f by default on a new line, generally == style.FramePadding.y when a framed item has been added).
float PrevLineTextBaseOffset;
bool IsSameLine;
bool IsSetPos;
ImVec1 Indent; // Indentation / start position from left of window (increased by TreePush/TreePop, etc.)
ImVec1 ColumnsOffset; // Offset to the current column (if ColumnsCurrent > 0). FIXME: This and the above should be a stack to allow use cases like Tree->Column->Tree. Need revamp columns API.
ImVec1 GroupOffset;
ImVec2 CursorStartPosLossyness;// Record the loss of precision of CursorStartPos due to really large scrolling amount. This is used by clipper to compensentate and fix the most common use case of large scroll area.
// Keyboard/Gamepad navigation
ImGuiNavLayer NavLayerCurrent; // Current layer, 0..31 (we currently only use 0..1)
short NavLayersActiveMask; // Which layers have been written to (result from previous frame)
short NavLayersActiveMaskNext;// Which layers have been written to (accumulator for current frame)
bool NavHideHighlightOneFrame;
bool NavHasScroll; // Set when scrolling can be used (ScrollMax > 0.0f)
// Miscellaneous
bool MenuBarAppending; // FIXME: Remove this
ImVec2 MenuBarOffset; // MenuBarOffset.x is sort of equivalent of a per-layer CursorPos.x, saved/restored as we switch to the menu bar. The only situation when MenuBarOffset.y is > 0 if when (SafeAreaPadding.y > FramePadding.y), often used on TVs.
ImGuiMenuColumns MenuColumns; // Simplified columns storage for menu items measurement
int TreeDepth; // Current tree depth.
ImU32 TreeJumpToParentOnPopMask; // Store a copy of !g.NavIdIsAlive for TreeDepth 0..31.. Could be turned into a ImU64 if necessary.
ImVector<ImGuiWindow*> ChildWindows;
ImGuiStorage* StateStorage; // Current persistent per-window storage (store e.g. tree node open/close state)
ImGuiOldColumns* CurrentColumns; // Current columns set
int CurrentTableIdx; // Current table index (into g.Tables)
ImGuiLayoutType LayoutType;
ImGuiLayoutType ParentLayoutType; // Layout type of parent window at the time of Begin()
// Local parameters stacks
// We store the current settings outside of the vectors to increase memory locality (reduce cache misses). The vectors are rarely modified. Also it allows us to not heap allocate for short-lived windows which are not using those settings.
float ItemWidth; // Current item width (>0.0: width in pixels, <0.0: align xx pixels to the right of window).
float TextWrapPos; // Current text wrap pos.
ImVector<float> ItemWidthStack; // Store item widths to restore (attention: .back() is not == ItemWidth)
ImVector<float> TextWrapPosStack; // Store text wrap pos to restore (attention: .back() is not == TextWrapPos)
};
// Storage for one window
struct IMGUI_API ImGuiWindow
{
ImGuiContext* Ctx; // Parent UI context (needs to be set explicitly by parent).
char* Name; // Window name, owned by the window.
ImGuiID ID; // == ImHashStr(Name)
ImGuiWindowFlags Flags; // See enum ImGuiWindowFlags_
ImGuiViewportP* Viewport; // Always set in Begin(). Inactive windows may have a NULL value here if their viewport was discarded.
ImVec2 Pos; // Position (always rounded-up to nearest pixel)
ImVec2 Size; // Current size (==SizeFull or collapsed title bar size)
ImVec2 SizeFull; // Size when non collapsed
ImVec2 ContentSize; // Size of contents/scrollable client area (calculated from the extents reach of the cursor) from previous frame. Does not include window decoration or window padding.
ImVec2 ContentSizeIdeal;
ImVec2 ContentSizeExplicit; // Size of contents/scrollable client area explicitly request by the user via SetNextWindowContentSize().
ImVec2 WindowPadding; // Window padding at the time of Begin().
float WindowRounding; // Window rounding at the time of Begin(). May be clamped lower to avoid rendering artifacts with title bar, menu bar etc.
float WindowBorderSize; // Window border size at the time of Begin().
float DecoOuterSizeX1, DecoOuterSizeY1; // Left/Up offsets. Sum of non-scrolling outer decorations (X1 generally == 0.0f. Y1 generally = TitleBarHeight + MenuBarHeight). Locked during Begin().
float DecoOuterSizeX2, DecoOuterSizeY2; // Right/Down offsets (X2 generally == ScrollbarSize.x, Y2 == ScrollbarSizes.y).
float DecoInnerSizeX1, DecoInnerSizeY1; // Applied AFTER/OVER InnerRect. Specialized for Tables as they use specialized form of clipping and frozen rows/columns are inside InnerRect (and not part of regular decoration sizes).
int NameBufLen; // Size of buffer storing Name. May be larger than strlen(Name)!
ImGuiID MoveId; // == window->GetID("#MOVE")
ImGuiID ChildId; // ID of corresponding item in parent window (for navigation to return from child window to parent window)
ImVec2 Scroll;
ImVec2 ScrollMax;
ImVec2 ScrollTarget; // target scroll position. stored as cursor position with scrolling canceled out, so the highest point is always 0.0f. (FLT_MAX for no change)
ImVec2 ScrollTargetCenterRatio; // 0.0f = scroll so that target position is at top, 0.5f = scroll so that target position is centered
ImVec2 ScrollTargetEdgeSnapDist; // 0.0f = no snapping, >0.0f snapping threshold
ImVec2 ScrollbarSizes; // Size taken by each scrollbars on their smaller axis. Pay attention! ScrollbarSizes.x == width of the vertical scrollbar, ScrollbarSizes.y = height of the horizontal scrollbar.
bool ScrollbarX, ScrollbarY; // Are scrollbars visible?
bool Active; // Set to true on Begin(), unless Collapsed
bool WasActive;
bool WriteAccessed; // Set to true when any widget access the current window
bool Collapsed; // Set when collapsing window to become only title-bar
bool WantCollapseToggle;
bool SkipItems; // Set when items can safely be all clipped (e.g. window not visible or collapsed)
bool Appearing; // Set during the frame where the window is appearing (or re-appearing)
bool Hidden; // Do not display (== HiddenFrames*** > 0)
bool IsFallbackWindow; // Set on the "Debug##Default" window.
bool IsExplicitChild; // Set when passed _ChildWindow, left to false by BeginDocked()
bool HasCloseButton; // Set when the window has a close button (p_open != NULL)
signed char ResizeBorderHeld; // Current border being held for resize (-1: none, otherwise 0-3)
short BeginCount; // Number of Begin() during the current frame (generally 0 or 1, 1+ if appending via multiple Begin/End pairs)
short BeginCountPreviousFrame; // Number of Begin() during the previous frame
short BeginOrderWithinParent; // Begin() order within immediate parent window, if we are a child window. Otherwise 0.
short BeginOrderWithinContext; // Begin() order within entire imgui context. This is mostly used for debugging submission order related issues.
short FocusOrder; // Order within WindowsFocusOrder[], altered when windows are focused.
ImGuiID PopupId; // ID in the popup stack when this window is used as a popup/menu (because we use generic Name/ID for recycling)
ImS8 AutoFitFramesX, AutoFitFramesY;
ImS8 AutoFitChildAxises;
bool AutoFitOnlyGrows;
ImGuiDir AutoPosLastDirection;
ImS8 HiddenFramesCanSkipItems; // Hide the window for N frames
ImS8 HiddenFramesCannotSkipItems; // Hide the window for N frames while allowing items to be submitted so we can measure their size
ImS8 HiddenFramesForRenderOnly; // Hide the window until frame N at Render() time only
ImS8 DisableInputsFrames; // Disable window interactions for N frames
ImGuiCond SetWindowPosAllowFlags : 8; // store acceptable condition flags for SetNextWindowPos() use.
ImGuiCond SetWindowSizeAllowFlags : 8; // store acceptable condition flags for SetNextWindowSize() use.
ImGuiCond SetWindowCollapsedAllowFlags : 8; // store acceptable condition flags for SetNextWindowCollapsed() use.
ImVec2 SetWindowPosVal; // store window position when using a non-zero Pivot (position set needs to be processed when we know the window size)
ImVec2 SetWindowPosPivot; // store window pivot for positioning. ImVec2(0, 0) when positioning from top-left corner; ImVec2(0.5f, 0.5f) for centering; ImVec2(1, 1) for bottom right.
ImVector<ImGuiID> IDStack; // ID stack. ID are hashes seeded with the value at the top of the stack. (In theory this should be in the TempData structure)
ImGuiWindowTempData DC; // Temporary per-window data, reset at the beginning of the frame. This used to be called ImGuiDrawContext, hence the "DC" variable name.
// The best way to understand what those rectangles are is to use the 'Metrics->Tools->Show Windows Rectangles' viewer.
// The main 'OuterRect', omitted as a field, is window->Rect().
ImRect OuterRectClipped; // == Window->Rect() just after setup in Begin(). == window->Rect() for root window.
ImRect InnerRect; // Inner rectangle (omit title bar, menu bar, scroll bar)
ImRect InnerClipRect; // == InnerRect shrunk by WindowPadding*0.5f on each side, clipped within viewport or parent clip rect.
ImRect WorkRect; // Initially covers the whole scrolling region. Reduced by containers e.g columns/tables when active. Shrunk by WindowPadding*1.0f on each side. This is meant to replace ContentRegionRect over time (from 1.71+ onward).
ImRect ParentWorkRect; // Backup of WorkRect before entering a container such as columns/tables. Used by e.g. SpanAllColumns functions to easily access. Stacked containers are responsible for maintaining this. // FIXME-WORKRECT: Could be a stack?
ImRect ClipRect; // Current clipping/scissoring rectangle, evolve as we are using PushClipRect(), etc. == DrawList->clip_rect_stack.back().
ImRect ContentRegionRect; // FIXME: This is currently confusing/misleading. It is essentially WorkRect but not handling of scrolling. We currently rely on it as right/bottom aligned sizing operation need some size to rely on.
ImVec2ih HitTestHoleSize; // Define an optional rectangular hole where mouse will pass-through the window.
ImVec2ih HitTestHoleOffset;
int LastFrameActive; // Last frame number the window was Active.
float LastTimeActive; // Last timestamp the window was Active (using float as we don't need high precision there)
float ItemWidthDefault;
ImGuiStorage StateStorage;
ImVector<ImGuiOldColumns> ColumnsStorage;
float FontWindowScale; // User scale multiplier per-window, via SetWindowFontScale()
int SettingsOffset; // Offset into SettingsWindows[] (offsets are always valid as we only grow the array from the back)
ImDrawList* DrawList; // == &DrawListInst (for backward compatibility reason with code using imgui_internal.h we keep this a pointer)
ImDrawList DrawListInst;
ImGuiWindow* ParentWindow; // If we are a child _or_ popup _or_ docked window, this is pointing to our parent. Otherwise NULL.
ImGuiWindow* ParentWindowInBeginStack;
ImGuiWindow* RootWindow; // Point to ourself or first ancestor that is not a child window. Doesn't cross through popups/dock nodes.
ImGuiWindow* RootWindowPopupTree; // Point to ourself or first ancestor that is not a child window. Cross through popups parent<>child.
ImGuiWindow* RootWindowForTitleBarHighlight; // Point to ourself or first ancestor which will display TitleBgActive color when this window is active.
ImGuiWindow* RootWindowForNav; // Point to ourself or first ancestor which doesn't have the NavFlattened flag.
ImGuiWindow* NavLastChildNavWindow; // When going to the menu bar, we remember the child window we came from. (This could probably be made implicit if we kept g.Windows sorted by last focused including child window.)
ImGuiID NavLastIds[ImGuiNavLayer_COUNT]; // Last known NavId for this window, per layer (0/1)
ImRect NavRectRel[ImGuiNavLayer_COUNT]; // Reference rectangle, in window relative space
ImGuiID NavRootFocusScopeId; // Focus Scope ID at the time of Begin()
int MemoryDrawListIdxCapacity; // Backup of last idx/vtx count, so when waking up the window we can preallocate and avoid iterative alloc/copy
int MemoryDrawListVtxCapacity;
bool MemoryCompacted; // Set when window extraneous data have been garbage collected
public:
ImGuiWindow(ImGuiContext* context, const char* name);
~ImGuiWindow();
ImGuiID GetID(const char* str, const char* str_end = NULL);
ImGuiID GetID(const void* ptr);
ImGuiID GetID(int n);
ImGuiID GetIDFromRectangle(const ImRect& r_abs);
// We don't use g.FontSize because the window may be != g.CurrentWindow.
ImRect Rect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
float CalcFontSize() const { ImGuiContext& g = *Ctx; float scale = g.FontBaseSize * FontWindowScale; if (ParentWindow) scale *= ParentWindow->FontWindowScale; return scale; }
float TitleBarHeight() const { ImGuiContext& g = *Ctx; return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0.0f : CalcFontSize() + g.Style.FramePadding.y * 2.0f; }
ImRect TitleBarRect() const { return ImRect(Pos, ImVec2(Pos.x + SizeFull.x, Pos.y + TitleBarHeight())); }
float MenuBarHeight() const { ImGuiContext& g = *Ctx; return (Flags & ImGuiWindowFlags_MenuBar) ? DC.MenuBarOffset.y + CalcFontSize() + g.Style.FramePadding.y * 2.0f : 0.0f; }
ImRect MenuBarRect() const { float y1 = Pos.y + TitleBarHeight(); return ImRect(Pos.x, y1, Pos.x + SizeFull.x, y1 + MenuBarHeight()); }
};
//-----------------------------------------------------------------------------
// [SECTION] Tab bar, Tab item support
//-----------------------------------------------------------------------------
// Extend ImGuiTabBarFlags_
enum ImGuiTabBarFlagsPrivate_
{
ImGuiTabBarFlags_DockNode = 1 << 20, // Part of a dock node [we don't use this in the master branch but it facilitate branch syncing to keep this around]
ImGuiTabBarFlags_IsFocused = 1 << 21,
ImGuiTabBarFlags_SaveSettings = 1 << 22, // FIXME: Settings are handled by the docking system, this only request the tab bar to mark settings dirty when reordering tabs
};
// Extend ImGuiTabItemFlags_
enum ImGuiTabItemFlagsPrivate_
{
ImGuiTabItemFlags_SectionMask_ = ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_Trailing,
ImGuiTabItemFlags_NoCloseButton = 1 << 20, // Track whether p_open was set or not (we'll need this info on the next frame to recompute ContentWidth during layout)
ImGuiTabItemFlags_Button = 1 << 21, // Used by TabItemButton, change the tab item behavior to mimic a button
};
// Storage for one active tab item (sizeof() 40 bytes)
struct ImGuiTabItem
{
ImGuiID ID;
ImGuiTabItemFlags Flags;
int LastFrameVisible;
int LastFrameSelected; // This allows us to infer an ordered list of the last activated tabs with little maintenance
float Offset; // Position relative to beginning of tab
float Width; // Width currently displayed
float ContentWidth; // Width of label, stored during BeginTabItem() call
float RequestedWidth; // Width optionally requested by caller, -1.0f is unused
ImS32 NameOffset; // When Window==NULL, offset to name within parent ImGuiTabBar::TabsNames
ImS16 BeginOrder; // BeginTabItem() order, used to re-order tabs after toggling ImGuiTabBarFlags_Reorderable
ImS16 IndexDuringLayout; // Index only used during TabBarLayout(). Tabs gets reordered so 'Tabs[n].IndexDuringLayout == n' but may mismatch during additions.
bool WantClose; // Marked as closed by SetTabItemClosed()
ImGuiTabItem() { memset(this, 0, sizeof(*this)); LastFrameVisible = LastFrameSelected = -1; RequestedWidth = -1.0f; NameOffset = -1; BeginOrder = IndexDuringLayout = -1; }
};
// Storage for a tab bar (sizeof() 152 bytes)
struct IMGUI_API ImGuiTabBar
{
ImVector<ImGuiTabItem> Tabs;
ImGuiTabBarFlags Flags;
ImGuiID ID; // Zero for tab-bars used by docking
ImGuiID SelectedTabId; // Selected tab/window
ImGuiID NextSelectedTabId; // Next selected tab/window. Will also trigger a scrolling animation
ImGuiID VisibleTabId; // Can occasionally be != SelectedTabId (e.g. when previewing contents for CTRL+TAB preview)
int CurrFrameVisible;
int PrevFrameVisible;
ImRect BarRect;
float CurrTabsContentsHeight;
float PrevTabsContentsHeight; // Record the height of contents submitted below the tab bar
float WidthAllTabs; // Actual width of all tabs (locked during layout)
float WidthAllTabsIdeal; // Ideal width if all tabs were visible and not clipped
float ScrollingAnim;
float ScrollingTarget;
float ScrollingTargetDistToVisibility;
float ScrollingSpeed;
float ScrollingRectMinX;
float ScrollingRectMaxX;
ImGuiID ReorderRequestTabId;
ImS16 ReorderRequestOffset;
ImS8 BeginCount;
bool WantLayout;
bool VisibleTabWasSubmitted;
bool TabsAddedNew; // Set to true when a new tab item or button has been added to the tab bar during last frame
ImS16 TabsActiveCount; // Number of tabs submitted this frame.
ImS16 LastTabItemIdx; // Index of last BeginTabItem() tab for use by EndTabItem()
float ItemSpacingY;
ImVec2 FramePadding; // style.FramePadding locked at the time of BeginTabBar()
ImVec2 BackupCursorPos;
ImGuiTextBuffer TabsNames; // For non-docking tab bar we re-append names in a contiguous buffer.
ImGuiTabBar();
};
//-----------------------------------------------------------------------------
// [SECTION] Table support
//-----------------------------------------------------------------------------
#define IM_COL32_DISABLE IM_COL32(0,0,0,1) // Special sentinel code which cannot be used as a regular color.
#define IMGUI_TABLE_MAX_COLUMNS 512 // May be further lifted
// Our current column maximum is 64 but we may raise that in the future.
typedef ImS16 ImGuiTableColumnIdx;
typedef ImU16 ImGuiTableDrawChannelIdx;
// [Internal] sizeof() ~ 104
// We use the terminology "Enabled" to refer to a column that is not Hidden by user/api.
// We use the terminology "Clipped" to refer to a column that is out of sight because of scrolling/clipping.
// This is in contrast with some user-facing api such as IsItemVisible() / IsRectVisible() which use "Visible" to mean "not clipped".
struct ImGuiTableColumn
{
ImGuiTableColumnFlags Flags; // Flags after some patching (not directly same as provided by user). See ImGuiTableColumnFlags_
float WidthGiven; // Final/actual width visible == (MaxX - MinX), locked in TableUpdateLayout(). May be > WidthRequest to honor minimum width, may be < WidthRequest to honor shrinking columns down in tight space.
float MinX; // Absolute positions
float MaxX;
float WidthRequest; // Master width absolute value when !(Flags & _WidthStretch). When Stretch this is derived every frame from StretchWeight in TableUpdateLayout()
float WidthAuto; // Automatic width
float StretchWeight; // Master width weight when (Flags & _WidthStretch). Often around ~1.0f initially.
float InitStretchWeightOrWidth; // Value passed to TableSetupColumn(). For Width it is a content width (_without padding_).
ImRect ClipRect; // Clipping rectangle for the column
ImGuiID UserID; // Optional, value passed to TableSetupColumn()
float WorkMinX; // Contents region min ~(MinX + CellPaddingX + CellSpacingX1) == cursor start position when entering column
float WorkMaxX; // Contents region max ~(MaxX - CellPaddingX - CellSpacingX2)
float ItemWidth; // Current item width for the column, preserved across rows
float ContentMaxXFrozen; // Contents maximum position for frozen rows (apart from headers), from which we can infer content width.
float ContentMaxXUnfrozen;
float ContentMaxXHeadersUsed; // Contents maximum position for headers rows (regardless of freezing). TableHeader() automatically softclip itself + report ideal desired size, to avoid creating extraneous draw calls
float ContentMaxXHeadersIdeal;
ImS16 NameOffset; // Offset into parent ColumnsNames[]
ImGuiTableColumnIdx DisplayOrder; // Index within Table's IndexToDisplayOrder[] (column may be reordered by users)
ImGuiTableColumnIdx IndexWithinEnabledSet; // Index within enabled/visible set (<= IndexToDisplayOrder)
ImGuiTableColumnIdx PrevEnabledColumn; // Index of prev enabled/visible column within Columns[], -1 if first enabled/visible column
ImGuiTableColumnIdx NextEnabledColumn; // Index of next enabled/visible column within Columns[], -1 if last enabled/visible column
ImGuiTableColumnIdx SortOrder; // Index of this column within sort specs, -1 if not sorting on this column, 0 for single-sort, may be >0 on multi-sort
ImGuiTableDrawChannelIdx DrawChannelCurrent; // Index within DrawSplitter.Channels[]
ImGuiTableDrawChannelIdx DrawChannelFrozen; // Draw channels for frozen rows (often headers)
ImGuiTableDrawChannelIdx DrawChannelUnfrozen; // Draw channels for unfrozen rows
bool IsEnabled; // IsUserEnabled && (Flags & ImGuiTableColumnFlags_Disabled) == 0
bool IsUserEnabled; // Is the column not marked Hidden by the user? (unrelated to being off view, e.g. clipped by scrolling).
bool IsUserEnabledNextFrame;
bool IsVisibleX; // Is actually in view (e.g. overlapping the host window clipping rectangle, not scrolled).
bool IsVisibleY;
bool IsRequestOutput; // Return value for TableSetColumnIndex() / TableNextColumn(): whether we request user to output contents or not.
bool IsSkipItems; // Do we want item submissions to this column to be completely ignored (no layout will happen).
bool IsPreserveWidthAuto;
ImS8 NavLayerCurrent; // ImGuiNavLayer in 1 byte
ImU8 AutoFitQueue; // Queue of 8 values for the next 8 frames to request auto-fit
ImU8 CannotSkipItemsQueue; // Queue of 8 values for the next 8 frames to disable Clipped/SkipItem
ImU8 SortDirection : 2; // ImGuiSortDirection_Ascending or ImGuiSortDirection_Descending
ImU8 SortDirectionsAvailCount : 2; // Number of available sort directions (0 to 3)
ImU8 SortDirectionsAvailMask : 4; // Mask of available sort directions (1-bit each)
ImU8 SortDirectionsAvailList; // Ordered of available sort directions (2-bits each)
ImGuiTableColumn()
{
memset(this, 0, sizeof(*this));
StretchWeight = WidthRequest = -1.0f;
NameOffset = -1;
DisplayOrder = IndexWithinEnabledSet = -1;
PrevEnabledColumn = NextEnabledColumn = -1;
SortOrder = -1;
SortDirection = ImGuiSortDirection_None;
DrawChannelCurrent = DrawChannelFrozen = DrawChannelUnfrozen = (ImU8)-1;
}
};
// Transient cell data stored per row.
// sizeof() ~ 6
struct ImGuiTableCellData
{
ImU32 BgColor; // Actual color
ImGuiTableColumnIdx Column; // Column number
};
// Per-instance data that needs preserving across frames (seemingly most others do not need to be preserved aside from debug needs. Does that means they could be moved to ImGuiTableTempData?)
struct ImGuiTableInstanceData
{
ImGuiID TableInstanceID;
float LastOuterHeight; // Outer height from last frame
float LastFirstRowHeight; // Height of first row from last frame (FIXME: this is used as "header height" and may be reworked)
float LastFrozenHeight; // Height of frozen section from last frame
ImGuiTableInstanceData() { TableInstanceID = 0; LastOuterHeight = LastFirstRowHeight = LastFrozenHeight = 0.0f; }
};
// FIXME-TABLE: more transient data could be stored in a stacked ImGuiTableTempData: e.g. SortSpecs, incoming RowData
struct IMGUI_API ImGuiTable
{
ImGuiID ID;
ImGuiTableFlags Flags;
void* RawData; // Single allocation to hold Columns[], DisplayOrderToIndex[] and RowCellData[]
ImGuiTableTempData* TempData; // Transient data while table is active. Point within g.CurrentTableStack[]
ImSpan<ImGuiTableColumn> Columns; // Point within RawData[]
ImSpan<ImGuiTableColumnIdx> DisplayOrderToIndex; // Point within RawData[]. Store display order of columns (when not reordered, the values are 0...Count-1)
ImSpan<ImGuiTableCellData> RowCellData; // Point within RawData[]. Store cells background requests for current row.
ImBitArrayPtr EnabledMaskByDisplayOrder; // Column DisplayOrder -> IsEnabled map
ImBitArrayPtr EnabledMaskByIndex; // Column Index -> IsEnabled map (== not hidden by user/api) in a format adequate for iterating column without touching cold data
ImBitArrayPtr VisibleMaskByIndex; // Column Index -> IsVisibleX|IsVisibleY map (== not hidden by user/api && not hidden by scrolling/cliprect)
ImGuiTableFlags SettingsLoadedFlags; // Which data were loaded from the .ini file (e.g. when order is not altered we won't save order)
int SettingsOffset; // Offset in g.SettingsTables
int LastFrameActive;
int ColumnsCount; // Number of columns declared in BeginTable()
int CurrentRow;
int CurrentColumn;
ImS16 InstanceCurrent; // Count of BeginTable() calls with same ID in the same frame (generally 0). This is a little bit similar to BeginCount for a window, but multiple table with same ID look are multiple tables, they are just synched.
ImS16 InstanceInteracted; // Mark which instance (generally 0) of the same ID is being interacted with
float RowPosY1;
float RowPosY2;
float RowMinHeight; // Height submitted to TableNextRow()
float RowTextBaseline;
float RowIndentOffsetX;
ImGuiTableRowFlags RowFlags : 16; // Current row flags, see ImGuiTableRowFlags_
ImGuiTableRowFlags LastRowFlags : 16;
int RowBgColorCounter; // Counter for alternating background colors (can be fast-forwarded by e.g clipper), not same as CurrentRow because header rows typically don't increase this.
ImU32 RowBgColor[2]; // Background color override for current row.
ImU32 BorderColorStrong;
ImU32 BorderColorLight;
float BorderX1;
float BorderX2;
float HostIndentX;
float MinColumnWidth;
float OuterPaddingX;
float CellPaddingX; // Padding from each borders
float CellPaddingY;
float CellSpacingX1; // Spacing between non-bordered cells
float CellSpacingX2;
float InnerWidth; // User value passed to BeginTable(), see comments at the top of BeginTable() for details.
float ColumnsGivenWidth; // Sum of current column width
float ColumnsAutoFitWidth; // Sum of ideal column width in order nothing to be clipped, used for auto-fitting and content width submission in outer window
float ColumnsStretchSumWeights; // Sum of weight of all enabled stretching columns
float ResizedColumnNextWidth;
float ResizeLockMinContentsX2; // Lock minimum contents width while resizing down in order to not create feedback loops. But we allow growing the table.
float RefScale; // Reference scale to be able to rescale columns on font/dpi changes.
ImRect OuterRect; // Note: for non-scrolling table, OuterRect.Max.y is often FLT_MAX until EndTable(), unless a height has been specified in BeginTable().
ImRect InnerRect; // InnerRect but without decoration. As with OuterRect, for non-scrolling tables, InnerRect.Max.y is
ImRect WorkRect;
ImRect InnerClipRect;
ImRect BgClipRect; // We use this to cpu-clip cell background color fill, evolve during the frame as we cross frozen rows boundaries
ImRect Bg0ClipRectForDrawCmd; // Actual ImDrawCmd clip rect for BG0/1 channel. This tends to be == OuterWindow->ClipRect at BeginTable() because output in BG0/BG1 is cpu-clipped
ImRect Bg2ClipRectForDrawCmd; // Actual ImDrawCmd clip rect for BG2 channel. This tends to be a correct, tight-fit, because output to BG2 are done by widgets relying on regular ClipRect.
ImRect HostClipRect; // This is used to check if we can eventually merge our columns draw calls into the current draw call of the current window.
ImRect HostBackupInnerClipRect; // Backup of InnerWindow->ClipRect during PushTableBackground()/PopTableBackground()
ImGuiWindow* OuterWindow; // Parent window for the table
ImGuiWindow* InnerWindow; // Window holding the table data (== OuterWindow or a child window)
ImGuiTextBuffer ColumnsNames; // Contiguous buffer holding columns names
ImDrawListSplitter* DrawSplitter; // Shortcut to TempData->DrawSplitter while in table. Isolate draw commands per columns to avoid switching clip rect constantly
ImGuiTableInstanceData InstanceDataFirst;
ImVector<ImGuiTableInstanceData> InstanceDataExtra; // FIXME-OPT: Using a small-vector pattern would be good.
ImGuiTableColumnSortSpecs SortSpecsSingle;
ImVector<ImGuiTableColumnSortSpecs> SortSpecsMulti; // FIXME-OPT: Using a small-vector pattern would be good.
ImGuiTableSortSpecs SortSpecs; // Public facing sorts specs, this is what we return in TableGetSortSpecs()
ImGuiTableColumnIdx SortSpecsCount;
ImGuiTableColumnIdx ColumnsEnabledCount; // Number of enabled columns (<= ColumnsCount)
ImGuiTableColumnIdx ColumnsEnabledFixedCount; // Number of enabled columns (<= ColumnsCount)
ImGuiTableColumnIdx DeclColumnsCount; // Count calls to TableSetupColumn()
ImGuiTableColumnIdx HoveredColumnBody; // Index of column whose visible region is being hovered. Important: == ColumnsCount when hovering empty region after the right-most column!
ImGuiTableColumnIdx HoveredColumnBorder; // Index of column whose right-border is being hovered (for resizing).
ImGuiTableColumnIdx AutoFitSingleColumn; // Index of single column requesting auto-fit.
ImGuiTableColumnIdx ResizedColumn; // Index of column being resized. Reset when InstanceCurrent==0.
ImGuiTableColumnIdx LastResizedColumn; // Index of column being resized from previous frame.
ImGuiTableColumnIdx HeldHeaderColumn; // Index of column header being held.
ImGuiTableColumnIdx ReorderColumn; // Index of column being reordered. (not cleared)
ImGuiTableColumnIdx ReorderColumnDir; // -1 or +1
ImGuiTableColumnIdx LeftMostEnabledColumn; // Index of left-most non-hidden column.
ImGuiTableColumnIdx RightMostEnabledColumn; // Index of right-most non-hidden column.
ImGuiTableColumnIdx LeftMostStretchedColumn; // Index of left-most stretched column.
ImGuiTableColumnIdx RightMostStretchedColumn; // Index of right-most stretched column.
ImGuiTableColumnIdx ContextPopupColumn; // Column right-clicked on, of -1 if opening context menu from a neutral/empty spot
ImGuiTableColumnIdx FreezeRowsRequest; // Requested frozen rows count
ImGuiTableColumnIdx FreezeRowsCount; // Actual frozen row count (== FreezeRowsRequest, or == 0 when no scrolling offset)
ImGuiTableColumnIdx FreezeColumnsRequest; // Requested frozen columns count
ImGuiTableColumnIdx FreezeColumnsCount; // Actual frozen columns count (== FreezeColumnsRequest, or == 0 when no scrolling offset)
ImGuiTableColumnIdx RowCellDataCurrent; // Index of current RowCellData[] entry in current row
ImGuiTableDrawChannelIdx DummyDrawChannel; // Redirect non-visible columns here.
ImGuiTableDrawChannelIdx Bg2DrawChannelCurrent; // For Selectable() and other widgets drawing across columns after the freezing line. Index within DrawSplitter.Channels[]
ImGuiTableDrawChannelIdx Bg2DrawChannelUnfrozen;
bool IsLayoutLocked; // Set by TableUpdateLayout() which is called when beginning the first row.
bool IsInsideRow; // Set when inside TableBeginRow()/TableEndRow().
bool IsInitializing;
bool IsSortSpecsDirty;
bool IsUsingHeaders; // Set when the first row had the ImGuiTableRowFlags_Headers flag.
bool IsContextPopupOpen; // Set when default context menu is open (also see: ContextPopupColumn, InstanceInteracted).
bool IsSettingsRequestLoad;
bool IsSettingsDirty; // Set when table settings have changed and needs to be reported into ImGuiTableSetttings data.
bool IsDefaultDisplayOrder; // Set when display order is unchanged from default (DisplayOrder contains 0...Count-1)
bool IsResetAllRequest;
bool IsResetDisplayOrderRequest;
bool IsUnfrozenRows; // Set when we got past the frozen row.
bool IsDefaultSizingPolicy; // Set if user didn't explicitly set a sizing policy in BeginTable()
bool HasScrollbarYCurr; // Whether ANY instance of this table had a vertical scrollbar during the current frame.
bool HasScrollbarYPrev; // Whether ANY instance of this table had a vertical scrollbar during the previous.
bool MemoryCompacted;
bool HostSkipItems; // Backup of InnerWindow->SkipItem at the end of BeginTable(), because we will overwrite InnerWindow->SkipItem on a per-column basis
ImGuiTable() { memset(this, 0, sizeof(*this)); LastFrameActive = -1; }
~ImGuiTable() { IM_FREE(RawData); }
};
// Transient data that are only needed between BeginTable() and EndTable(), those buffers are shared (1 per level of stacked table).
// - Accessing those requires chasing an extra pointer so for very frequently used data we leave them in the main table structure.
// - We also leave out of this structure data that tend to be particularly useful for debugging/metrics.
struct IMGUI_API ImGuiTableTempData
{
int TableIndex; // Index in g.Tables.Buf[] pool
float LastTimeActive; // Last timestamp this structure was used
ImVec2 UserOuterSize; // outer_size.x passed to BeginTable()
ImDrawListSplitter DrawSplitter;
ImRect HostBackupWorkRect; // Backup of InnerWindow->WorkRect at the end of BeginTable()
ImRect HostBackupParentWorkRect; // Backup of InnerWindow->ParentWorkRect at the end of BeginTable()
ImVec2 HostBackupPrevLineSize; // Backup of InnerWindow->DC.PrevLineSize at the end of BeginTable()
ImVec2 HostBackupCurrLineSize; // Backup of InnerWindow->DC.CurrLineSize at the end of BeginTable()
ImVec2 HostBackupCursorMaxPos; // Backup of InnerWindow->DC.CursorMaxPos at the end of BeginTable()
ImVec1 HostBackupColumnsOffset; // Backup of OuterWindow->DC.ColumnsOffset at the end of BeginTable()
float HostBackupItemWidth; // Backup of OuterWindow->DC.ItemWidth at the end of BeginTable()
int HostBackupItemWidthStackSize;//Backup of OuterWindow->DC.ItemWidthStack.Size at the end of BeginTable()
ImGuiTableTempData() { memset(this, 0, sizeof(*this)); LastTimeActive = -1.0f; }
};
// sizeof() ~ 12
struct ImGuiTableColumnSettings
{
float WidthOrWeight;
ImGuiID UserID;
ImGuiTableColumnIdx Index;
ImGuiTableColumnIdx DisplayOrder;
ImGuiTableColumnIdx SortOrder;
ImU8 SortDirection : 2;
ImU8 IsEnabled : 1; // "Visible" in ini file
ImU8 IsStretch : 1;
ImGuiTableColumnSettings()
{
WidthOrWeight = 0.0f;
UserID = 0;
Index = -1;
DisplayOrder = SortOrder = -1;
SortDirection = ImGuiSortDirection_None;
IsEnabled = 1;
IsStretch = 0;
}
};
// This is designed to be stored in a single ImChunkStream (1 header followed by N ImGuiTableColumnSettings, etc.)
struct ImGuiTableSettings
{
ImGuiID ID; // Set to 0 to invalidate/delete the setting
ImGuiTableFlags SaveFlags; // Indicate data we want to save using the Resizable/Reorderable/Sortable/Hideable flags (could be using its own flags..)
float RefScale; // Reference scale to be able to rescale columns on font/dpi changes.
ImGuiTableColumnIdx ColumnsCount;
ImGuiTableColumnIdx ColumnsCountMax; // Maximum number of columns this settings instance can store, we can recycle a settings instance with lower number of columns but not higher
bool WantApply; // Set when loaded from .ini data (to enable merging/loading .ini data into an already running context)
ImGuiTableSettings() { memset(this, 0, sizeof(*this)); }
ImGuiTableColumnSettings* GetColumnSettings() { return (ImGuiTableColumnSettings*)(this + 1); }
};
//-----------------------------------------------------------------------------
// [SECTION] ImGui internal API
// No guarantee of forward compatibility here!
//-----------------------------------------------------------------------------
namespace ImGui
{
// Windows
// We should always have a CurrentWindow in the stack (there is an implicit "Debug" window)
// If this ever crash because g.CurrentWindow is NULL it means that either
// - ImGui::NewFrame() has never been called, which is illegal.
// - You are calling ImGui functions after ImGui::EndFrame()/ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal.
inline ImGuiWindow* GetCurrentWindowRead() { ImGuiContext& g = *GImGui; return g.CurrentWindow; }
inline ImGuiWindow* GetCurrentWindow() { ImGuiContext& g = *GImGui; g.CurrentWindow->WriteAccessed = true; return g.CurrentWindow; }
IMGUI_API ImGuiWindow* FindWindowByID(ImGuiID id);
IMGUI_API ImGuiWindow* FindWindowByName(const char* name);
IMGUI_API void UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window);
IMGUI_API ImVec2 CalcWindowNextAutoFitSize(ImGuiWindow* window);
IMGUI_API bool IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent, bool popup_hierarchy);
IMGUI_API bool IsWindowWithinBeginStackOf(ImGuiWindow* window, ImGuiWindow* potential_parent);
IMGUI_API bool IsWindowAbove(ImGuiWindow* potential_above, ImGuiWindow* potential_below);
IMGUI_API bool IsWindowNavFocusable(ImGuiWindow* window);
IMGUI_API void SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond = 0);
IMGUI_API void SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond = 0);
IMGUI_API void SetWindowCollapsed(ImGuiWindow* window, bool collapsed, ImGuiCond cond = 0);
IMGUI_API void SetWindowHitTestHole(ImGuiWindow* window, const ImVec2& pos, const ImVec2& size);
IMGUI_API void SetWindowHiddendAndSkipItemsForCurrentFrame(ImGuiWindow* window);
inline ImRect WindowRectAbsToRel(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x - off.x, r.Min.y - off.y, r.Max.x - off.x, r.Max.y - off.y); }
inline ImRect WindowRectRelToAbs(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x + off.x, r.Min.y + off.y, r.Max.x + off.x, r.Max.y + off.y); }
// Windows: Display Order and Focus Order
IMGUI_API void FocusWindow(ImGuiWindow* window);
IMGUI_API void FocusTopMostWindowUnderOne(ImGuiWindow* under_this_window, ImGuiWindow* ignore_window);
IMGUI_API void BringWindowToFocusFront(ImGuiWindow* window);
IMGUI_API void BringWindowToDisplayFront(ImGuiWindow* window);
IMGUI_API void BringWindowToDisplayBack(ImGuiWindow* window);
IMGUI_API void BringWindowToDisplayBehind(ImGuiWindow* window, ImGuiWindow* above_window);
IMGUI_API int FindWindowDisplayIndex(ImGuiWindow* window);
IMGUI_API ImGuiWindow* FindBottomMostVisibleWindowWithinBeginStack(ImGuiWindow* window);
// Fonts, drawing
IMGUI_API void SetCurrentFont(ImFont* font);
inline ImFont* GetDefaultFont() { ImGuiContext& g = *GImGui; return g.IO.FontDefault ? g.IO.FontDefault : g.IO.Fonts->Fonts[0]; }
inline ImDrawList* GetForegroundDrawList(ImGuiWindow* window) { IM_UNUSED(window); return GetForegroundDrawList(); } // This seemingly unnecessary wrapper simplifies compatibility between the 'master' and 'docking' branches.
IMGUI_API ImDrawList* GetBackgroundDrawList(ImGuiViewport* viewport); // get background draw list for the given viewport. this draw list will be the first rendering one. Useful to quickly draw shapes/text behind dear imgui contents.
IMGUI_API ImDrawList* GetForegroundDrawList(ImGuiViewport* viewport); // get foreground draw list for the given viewport. this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
// Init
IMGUI_API void Initialize();
IMGUI_API void Shutdown(); // Since 1.60 this is a _private_ function. You can call DestroyContext() to destroy the context created by CreateContext().
// NewFrame
IMGUI_API void UpdateInputEvents(bool trickle_fast_inputs);
IMGUI_API void UpdateHoveredWindowAndCaptureFlags();
IMGUI_API void StartMouseMovingWindow(ImGuiWindow* window);
IMGUI_API void UpdateMouseMovingWindowNewFrame();
IMGUI_API void UpdateMouseMovingWindowEndFrame();
// Generic context hooks
IMGUI_API ImGuiID AddContextHook(ImGuiContext* context, const ImGuiContextHook* hook);
IMGUI_API void RemoveContextHook(ImGuiContext* context, ImGuiID hook_to_remove);
IMGUI_API void CallContextHooks(ImGuiContext* context, ImGuiContextHookType type);
// Viewports
IMGUI_API void SetWindowViewport(ImGuiWindow* window, ImGuiViewportP* viewport);
// Settings
IMGUI_API void MarkIniSettingsDirty();
IMGUI_API void MarkIniSettingsDirty(ImGuiWindow* window);
IMGUI_API void ClearIniSettings();
IMGUI_API void AddSettingsHandler(const ImGuiSettingsHandler* handler);
IMGUI_API void RemoveSettingsHandler(const char* type_name);
IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name);
// Settings - Windows
IMGUI_API ImGuiWindowSettings* CreateNewWindowSettings(const char* name);
IMGUI_API ImGuiWindowSettings* FindWindowSettingsByID(ImGuiID id);
IMGUI_API ImGuiWindowSettings* FindWindowSettingsByWindow(ImGuiWindow* window);
IMGUI_API void ClearWindowSettings(const char* name);
// Localization
IMGUI_API void LocalizeRegisterEntries(const ImGuiLocEntry* entries, int count);
inline const char* LocalizeGetMsg(ImGuiLocKey key) { ImGuiContext& g = *GImGui; const char* msg = g.LocalizationTable[key]; return msg ? msg : "*Missing Text*"; }
// Scrolling
IMGUI_API void SetScrollX(ImGuiWindow* window, float scroll_x);
IMGUI_API void SetScrollY(ImGuiWindow* window, float scroll_y);
IMGUI_API void SetScrollFromPosX(ImGuiWindow* window, float local_x, float center_x_ratio);
IMGUI_API void SetScrollFromPosY(ImGuiWindow* window, float local_y, float center_y_ratio);
// Early work-in-progress API (ScrollToItem() will become public)
IMGUI_API void ScrollToItem(ImGuiScrollFlags flags = 0);
IMGUI_API void ScrollToRect(ImGuiWindow* window, const ImRect& rect, ImGuiScrollFlags flags = 0);
IMGUI_API ImVec2 ScrollToRectEx(ImGuiWindow* window, const ImRect& rect, ImGuiScrollFlags flags = 0);
//#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
inline void ScrollToBringRectIntoView(ImGuiWindow* window, const ImRect& rect) { ScrollToRect(window, rect, ImGuiScrollFlags_KeepVisibleEdgeY); }
//#endif
// Basic Accessors
inline ImGuiItemStatusFlags GetItemStatusFlags(){ ImGuiContext& g = *GImGui; return g.LastItemData.StatusFlags; }
inline ImGuiItemFlags GetItemFlags() { ImGuiContext& g = *GImGui; return g.LastItemData.InFlags; }
inline ImGuiID GetActiveID() { ImGuiContext& g = *GImGui; return g.ActiveId; }
inline ImGuiID GetFocusID() { ImGuiContext& g = *GImGui; return g.NavId; }
IMGUI_API void SetActiveID(ImGuiID id, ImGuiWindow* window);
IMGUI_API void SetFocusID(ImGuiID id, ImGuiWindow* window);
IMGUI_API void ClearActiveID();
IMGUI_API ImGuiID GetHoveredID();
IMGUI_API void SetHoveredID(ImGuiID id);
IMGUI_API void KeepAliveID(ImGuiID id);
IMGUI_API void MarkItemEdited(ImGuiID id); // Mark data associated to given item as "edited", used by IsItemDeactivatedAfterEdit() function.
IMGUI_API void PushOverrideID(ImGuiID id); // Push given value as-is at the top of the ID stack (whereas PushID combines old and new hashes)
IMGUI_API ImGuiID GetIDWithSeed(const char* str_id_begin, const char* str_id_end, ImGuiID seed);
IMGUI_API ImGuiID GetIDWithSeed(int n, ImGuiID seed);
// Basic Helpers for widget code
IMGUI_API void ItemSize(const ImVec2& size, float text_baseline_y = -1.0f);
inline void ItemSize(const ImRect& bb, float text_baseline_y = -1.0f) { ItemSize(bb.GetSize(), text_baseline_y); } // FIXME: This is a misleading API since we expect CursorPos to be bb.Min.
IMGUI_API bool ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL, ImGuiItemFlags extra_flags = 0);
IMGUI_API bool ItemHoverable(const ImRect& bb, ImGuiID id);
IMGUI_API bool IsClippedEx(const ImRect& bb, ImGuiID id);
IMGUI_API void SetLastItemData(ImGuiID item_id, ImGuiItemFlags in_flags, ImGuiItemStatusFlags status_flags, const ImRect& item_rect);
IMGUI_API ImVec2 CalcItemSize(ImVec2 size, float default_w, float default_h);
IMGUI_API float CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x);
IMGUI_API void PushMultiItemsWidths(int components, float width_full);
IMGUI_API bool IsItemToggledSelection(); // Was the last item selection toggled? (after Selectable(), TreeNode() etc. We only returns toggle _event_ in order to handle clipping correctly)
IMGUI_API ImVec2 GetContentRegionMaxAbs();
IMGUI_API void ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess);
// Parameter stacks (shared)
IMGUI_API void PushItemFlag(ImGuiItemFlags option, bool enabled);
IMGUI_API void PopItemFlag();
IMGUI_API const ImGuiDataVarInfo* GetStyleVarInfo(ImGuiStyleVar idx);
// Logging/Capture
IMGUI_API void LogBegin(ImGuiLogType type, int auto_open_depth); // -> BeginCapture() when we design v2 api, for now stay under the radar by using the old name.
IMGUI_API void LogToBuffer(int auto_open_depth = -1); // Start logging/capturing to internal buffer
IMGUI_API void LogRenderedText(const ImVec2* ref_pos, const char* text, const char* text_end = NULL);
IMGUI_API void LogSetNextTextDecoration(const char* prefix, const char* suffix);
// Popups, Modals, Tooltips
IMGUI_API bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags flags);
IMGUI_API void OpenPopupEx(ImGuiID id, ImGuiPopupFlags popup_flags = ImGuiPopupFlags_None);
IMGUI_API void ClosePopupToLevel(int remaining, bool restore_focus_to_window_under_popup);
IMGUI_API void ClosePopupsOverWindow(ImGuiWindow* ref_window, bool restore_focus_to_window_under_popup);
IMGUI_API void ClosePopupsExceptModals();
IMGUI_API bool IsPopupOpen(ImGuiID id, ImGuiPopupFlags popup_flags);
IMGUI_API bool BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags);
IMGUI_API bool BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags);
IMGUI_API ImRect GetPopupAllowedExtentRect(ImGuiWindow* window);
IMGUI_API ImGuiWindow* GetTopMostPopupModal();
IMGUI_API ImGuiWindow* GetTopMostAndVisiblePopupModal();
IMGUI_API ImVec2 FindBestWindowPosForPopup(ImGuiWindow* window);
IMGUI_API ImVec2 FindBestWindowPosForPopupEx(const ImVec2& ref_pos, const ImVec2& size, ImGuiDir* last_dir, const ImRect& r_outer, const ImRect& r_avoid, ImGuiPopupPositionPolicy policy);
// Menus
IMGUI_API bool BeginViewportSideBar(const char* name, ImGuiViewport* viewport, ImGuiDir dir, float size, ImGuiWindowFlags window_flags);
IMGUI_API bool BeginMenuEx(const char* label, const char* icon, bool enabled = true);
IMGUI_API bool MenuItemEx(const char* label, const char* icon, const char* shortcut = NULL, bool selected = false, bool enabled = true);
// Combos
IMGUI_API bool BeginComboPopup(ImGuiID popup_id, const ImRect& bb, ImGuiComboFlags flags);
IMGUI_API bool BeginComboPreview();
IMGUI_API void EndComboPreview();
// Gamepad/Keyboard Navigation
IMGUI_API void NavInitWindow(ImGuiWindow* window, bool force_reinit);
IMGUI_API void NavInitRequestApplyResult();
IMGUI_API bool NavMoveRequestButNoResultYet();
IMGUI_API void NavMoveRequestSubmit(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags);
IMGUI_API void NavMoveRequestForward(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags);
IMGUI_API void NavMoveRequestResolveWithLastItem(ImGuiNavItemData* result);
IMGUI_API void NavMoveRequestCancel();
IMGUI_API void NavMoveRequestApplyResult();
IMGUI_API void NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags move_flags);
IMGUI_API void ActivateItem(ImGuiID id); // Remotely activate a button, checkbox, tree node etc. given its unique ID. activation is queued and processed on the next frame when the item is encountered again.
IMGUI_API void SetNavWindow(ImGuiWindow* window);
IMGUI_API void SetNavID(ImGuiID id, ImGuiNavLayer nav_layer, ImGuiID focus_scope_id, const ImRect& rect_rel);
// Inputs
// FIXME: Eventually we should aim to move e.g. IsActiveIdUsingKey() into IsKeyXXX functions.
inline bool IsNamedKey(ImGuiKey key) { return key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END; }
inline bool IsNamedKeyOrModKey(ImGuiKey key) { return (key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END) || key == ImGuiMod_Ctrl || key == ImGuiMod_Shift || key == ImGuiMod_Alt || key == ImGuiMod_Super || key == ImGuiMod_Shortcut; }
inline bool IsLegacyKey(ImGuiKey key) { return key >= ImGuiKey_LegacyNativeKey_BEGIN && key < ImGuiKey_LegacyNativeKey_END; }
inline bool IsKeyboardKey(ImGuiKey key) { return key >= ImGuiKey_Keyboard_BEGIN && key < ImGuiKey_Keyboard_END; }
inline bool IsGamepadKey(ImGuiKey key) { return key >= ImGuiKey_Gamepad_BEGIN && key < ImGuiKey_Gamepad_END; }
inline bool IsMouseKey(ImGuiKey key) { return key >= ImGuiKey_Mouse_BEGIN && key < ImGuiKey_Mouse_END; }
inline bool IsAliasKey(ImGuiKey key) { return key >= ImGuiKey_Aliases_BEGIN && key < ImGuiKey_Aliases_END; }
inline ImGuiKeyChord ConvertShortcutMod(ImGuiKeyChord key_chord) { ImGuiContext& g = *GImGui; IM_ASSERT_PARANOID(key_chord & ImGuiMod_Shortcut); return (key_chord & ~ImGuiMod_Shortcut) | (g.IO.ConfigMacOSXBehaviors ? ImGuiMod_Super : ImGuiMod_Ctrl); }
inline ImGuiKey ConvertSingleModFlagToKey(ImGuiKey key)
{
ImGuiContext& g = *GImGui;
if (key == ImGuiMod_Ctrl) return ImGuiKey_ReservedForModCtrl;
if (key == ImGuiMod_Shift) return ImGuiKey_ReservedForModShift;
if (key == ImGuiMod_Alt) return ImGuiKey_ReservedForModAlt;
if (key == ImGuiMod_Super) return ImGuiKey_ReservedForModSuper;
if (key == ImGuiMod_Shortcut) return (g.IO.ConfigMacOSXBehaviors ? ImGuiKey_ReservedForModSuper : ImGuiKey_ReservedForModCtrl);
return key;
}
IMGUI_API ImGuiKeyData* GetKeyData(ImGuiKey key);
IMGUI_API void GetKeyChordName(ImGuiKeyChord key_chord, char* out_buf, int out_buf_size);
inline ImGuiKey MouseButtonToKey(ImGuiMouseButton button) { IM_ASSERT(button >= 0 && button < ImGuiMouseButton_COUNT); return (ImGuiKey)(ImGuiKey_MouseLeft + button); }
IMGUI_API bool IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold = -1.0f);
IMGUI_API ImVec2 GetKeyMagnitude2d(ImGuiKey key_left, ImGuiKey key_right, ImGuiKey key_up, ImGuiKey key_down);
IMGUI_API float GetNavTweakPressedAmount(ImGuiAxis axis);
IMGUI_API int CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate);
IMGUI_API void GetTypematicRepeatRate(ImGuiInputFlags flags, float* repeat_delay, float* repeat_rate);
IMGUI_API void SetActiveIdUsingAllKeyboardKeys();
inline bool IsActiveIdUsingNavDir(ImGuiDir dir) { ImGuiContext& g = *GImGui; return (g.ActiveIdUsingNavDirMask & (1 << dir)) != 0; }
// [EXPERIMENTAL] Low-Level: Key/Input Ownership
// - The idea is that instead of "eating" a given input, we can link to an owner id.
// - Ownership is most often claimed as a result of reacting to a press/down event (but occasionally may be claimed ahead).
// - Input queries can then read input by specifying ImGuiKeyOwner_Any (== 0), ImGuiKeyOwner_None (== -1) or a custom ID.
// - Legacy input queries (without specifying an owner or _Any or _None) are equivalent to using ImGuiKeyOwner_Any (== 0).
// - Input ownership is automatically released on the frame after a key is released. Therefore:
// - for ownership registration happening as a result of a down/press event, the SetKeyOwner() call may be done once (common case).
// - for ownership registration happening ahead of a down/press event, the SetKeyOwner() call needs to be made every frame (happens if e.g. claiming ownership on hover).
// - SetItemKeyOwner() is a shortcut for common simple case. A custom widget will probably want to call SetKeyOwner() multiple times directly based on its interaction state.
// - This is marked experimental because not all widgets are fully honoring the Set/Test idioms. We will need to move forward step by step.
// Please open a GitHub Issue to submit your usage scenario or if there's a use case you need solved.
IMGUI_API ImGuiID GetKeyOwner(ImGuiKey key);
IMGUI_API void SetKeyOwner(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags = 0);
IMGUI_API void SetItemKeyOwner(ImGuiKey key, ImGuiInputFlags flags = 0); // Set key owner to last item if it is hovered or active. Equivalent to 'if (IsItemHovered() || IsItemActive()) { SetKeyOwner(key, GetItemID());'.
IMGUI_API bool TestKeyOwner(ImGuiKey key, ImGuiID owner_id); // Test that key is either not owned, either owned by 'owner_id'
inline ImGuiKeyOwnerData* GetKeyOwnerData(ImGuiKey key) { if (key & ImGuiMod_Mask_) key = ConvertSingleModFlagToKey(key); IM_ASSERT(IsNamedKey(key)); return &GImGui->KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN]; }
// [EXPERIMENTAL] High-Level: Input Access functions w/ support for Key/Input Ownership
// - Important: legacy IsKeyPressed(ImGuiKey, bool repeat=true) _DEFAULTS_ to repeat, new IsKeyPressed() requires _EXPLICIT_ ImGuiInputFlags_Repeat flag.
// - Expected to be later promoted to public API, the prototypes are designed to replace existing ones (since owner_id can default to Any == 0)
// - Specifying a value for 'ImGuiID owner' will test that EITHER the key is NOT owned (UNLESS locked), EITHER the key is owned by 'owner'.
// Legacy functions use ImGuiKeyOwner_Any meaning that they typically ignore ownership, unless a call to SetKeyOwner() explicitly used ImGuiInputFlags_LockThisFrame or ImGuiInputFlags_LockUntilRelease.
// - Binding generators may want to ignore those for now, or suffix them with Ex() until we decide if this gets moved into public API.
IMGUI_API bool IsKeyDown(ImGuiKey key, ImGuiID owner_id);
IMGUI_API bool IsKeyPressed(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags = 0); // Important: when transitioning from old to new IsKeyPressed(): old API has "bool repeat = true", so would default to repeat. New API requiress explicit ImGuiInputFlags_Repeat.
IMGUI_API bool IsKeyReleased(ImGuiKey key, ImGuiID owner_id);
IMGUI_API bool IsMouseDown(ImGuiMouseButton button, ImGuiID owner_id);
IMGUI_API bool IsMouseClicked(ImGuiMouseButton button, ImGuiID owner_id, ImGuiInputFlags flags = 0);
IMGUI_API bool IsMouseReleased(ImGuiMouseButton button, ImGuiID owner_id);
// [EXPERIMENTAL] Shortcut Routing
// - ImGuiKeyChord = a ImGuiKey optionally OR-red with ImGuiMod_Alt/ImGuiMod_Ctrl/ImGuiMod_Shift/ImGuiMod_Super.
// ImGuiKey_C (accepted by functions taking ImGuiKey or ImGuiKeyChord)
// ImGuiKey_C | ImGuiMod_Ctrl (accepted by functions taking ImGuiKeyChord)
// ONLY ImGuiMod_XXX values are legal to 'OR' with an ImGuiKey. You CANNOT 'OR' two ImGuiKey values.
// - When using one of the routing flags (e.g. ImGuiInputFlags_RouteFocused): routes requested ahead of time given a chord (key + modifiers) and a routing policy.
// - Routes are resolved during NewFrame(): if keyboard modifiers are matching current ones: SetKeyOwner() is called + route is granted for the frame.
// - Route is granted to a single owner. When multiple requests are made we have policies to select the winning route.
// - Multiple read sites may use the same owner id and will all get the granted route.
// - For routing: when owner_id is 0 we use the current Focus Scope ID as a default owner in order to identify our location.
IMGUI_API bool Shortcut(ImGuiKeyChord key_chord, ImGuiID owner_id = 0, ImGuiInputFlags flags = 0);
IMGUI_API bool SetShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id = 0, ImGuiInputFlags flags = 0);
IMGUI_API bool TestShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id);
IMGUI_API ImGuiKeyRoutingData* GetShortcutRoutingData(ImGuiKeyChord key_chord);
// [EXPERIMENTAL] Focus Scope
// This is generally used to identify a unique input location (for e.g. a selection set)
// There is one per window (automatically set in Begin), but:
// - Selection patterns generally need to react (e.g. clear a selection) when landing on one item of the set.
// So in order to identify a set multiple lists in same window may each need a focus scope.
// If you imagine an hypothetical BeginSelectionGroup()/EndSelectionGroup() api, it would likely call PushFocusScope()/EndFocusScope()
// - Shortcut routing also use focus scope as a default location identifier if an owner is not provided.
// We don't use the ID Stack for this as it is common to want them separate.
IMGUI_API void PushFocusScope(ImGuiID id);
IMGUI_API void PopFocusScope();
inline ImGuiID GetCurrentFocusScope() { ImGuiContext& g = *GImGui; return g.CurrentFocusScopeId; } // Focus scope we are outputting into, set by PushFocusScope()
// Drag and Drop
IMGUI_API bool IsDragDropActive();
IMGUI_API bool BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id);
IMGUI_API void ClearDragDrop();
IMGUI_API bool IsDragDropPayloadBeingAccepted();
IMGUI_API void RenderDragDropTargetRect(const ImRect& bb);
// Internal Columns API (this is not exposed because we will encourage transitioning to the Tables API)
IMGUI_API void SetWindowClipRectBeforeSetChannel(ImGuiWindow* window, const ImRect& clip_rect);
IMGUI_API void BeginColumns(const char* str_id, int count, ImGuiOldColumnFlags flags = 0); // setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns().
IMGUI_API void EndColumns(); // close columns
IMGUI_API void PushColumnClipRect(int column_index);
IMGUI_API void PushColumnsBackground();
IMGUI_API void PopColumnsBackground();
IMGUI_API ImGuiID GetColumnsID(const char* str_id, int count);
IMGUI_API ImGuiOldColumns* FindOrCreateColumns(ImGuiWindow* window, ImGuiID id);
IMGUI_API float GetColumnOffsetFromNorm(const ImGuiOldColumns* columns, float offset_norm);
IMGUI_API float GetColumnNormFromOffset(const ImGuiOldColumns* columns, float offset);
// Tables: Candidates for public API
IMGUI_API void TableOpenContextMenu(int column_n = -1);
IMGUI_API void TableSetColumnWidth(int column_n, float width);
IMGUI_API void TableSetColumnSortDirection(int column_n, ImGuiSortDirection sort_direction, bool append_to_sort_specs);
IMGUI_API int TableGetHoveredColumn(); // May use (TableGetColumnFlags() & ImGuiTableColumnFlags_IsHovered) instead. Return hovered column. return -1 when table is not hovered. return columns_count if the unused space at the right of visible columns is hovered.
IMGUI_API float TableGetHeaderRowHeight();
IMGUI_API void TablePushBackgroundChannel();
IMGUI_API void TablePopBackgroundChannel();
// Tables: Internals
inline ImGuiTable* GetCurrentTable() { ImGuiContext& g = *GImGui; return g.CurrentTable; }
IMGUI_API ImGuiTable* TableFindByID(ImGuiID id);
IMGUI_API bool BeginTableEx(const char* name, ImGuiID id, int columns_count, ImGuiTableFlags flags = 0, const ImVec2& outer_size = ImVec2(0, 0), float inner_width = 0.0f);
IMGUI_API void TableBeginInitMemory(ImGuiTable* table, int columns_count);
IMGUI_API void TableBeginApplyRequests(ImGuiTable* table);
IMGUI_API void TableSetupDrawChannels(ImGuiTable* table);
IMGUI_API void TableUpdateLayout(ImGuiTable* table);
IMGUI_API void TableUpdateBorders(ImGuiTable* table);
IMGUI_API void TableUpdateColumnsWeightFromWidth(ImGuiTable* table);
IMGUI_API void TableDrawBorders(ImGuiTable* table);
IMGUI_API void TableDrawContextMenu(ImGuiTable* table);
IMGUI_API bool TableBeginContextMenuPopup(ImGuiTable* table);
IMGUI_API void TableMergeDrawChannels(ImGuiTable* table);
inline ImGuiTableInstanceData* TableGetInstanceData(ImGuiTable* table, int instance_no) { if (instance_no == 0) return &table->InstanceDataFirst; return &table->InstanceDataExtra[instance_no - 1]; }
inline ImGuiID TableGetInstanceID(ImGuiTable* table, int instance_no) { return TableGetInstanceData(table, instance_no)->TableInstanceID; }
IMGUI_API void TableSortSpecsSanitize(ImGuiTable* table);
IMGUI_API void TableSortSpecsBuild(ImGuiTable* table);
IMGUI_API ImGuiSortDirection TableGetColumnNextSortDirection(ImGuiTableColumn* column);
IMGUI_API void TableFixColumnSortDirection(ImGuiTable* table, ImGuiTableColumn* column);
IMGUI_API float TableGetColumnWidthAuto(ImGuiTable* table, ImGuiTableColumn* column);
IMGUI_API void TableBeginRow(ImGuiTable* table);
IMGUI_API void TableEndRow(ImGuiTable* table);
IMGUI_API void TableBeginCell(ImGuiTable* table, int column_n);
IMGUI_API void TableEndCell(ImGuiTable* table);
IMGUI_API ImRect TableGetCellBgRect(const ImGuiTable* table, int column_n);
IMGUI_API const char* TableGetColumnName(const ImGuiTable* table, int column_n);
IMGUI_API ImGuiID TableGetColumnResizeID(ImGuiTable* table, int column_n, int instance_no = 0);
IMGUI_API float TableGetMaxColumnWidth(const ImGuiTable* table, int column_n);
IMGUI_API void TableSetColumnWidthAutoSingle(ImGuiTable* table, int column_n);
IMGUI_API void TableSetColumnWidthAutoAll(ImGuiTable* table);
IMGUI_API void TableRemove(ImGuiTable* table);
IMGUI_API void TableGcCompactTransientBuffers(ImGuiTable* table);
IMGUI_API void TableGcCompactTransientBuffers(ImGuiTableTempData* table);
IMGUI_API void TableGcCompactSettings();
// Tables: Settings
IMGUI_API void TableLoadSettings(ImGuiTable* table);
IMGUI_API void TableSaveSettings(ImGuiTable* table);
IMGUI_API void TableResetSettings(ImGuiTable* table);
IMGUI_API ImGuiTableSettings* TableGetBoundSettings(ImGuiTable* table);
IMGUI_API void TableSettingsAddSettingsHandler();
IMGUI_API ImGuiTableSettings* TableSettingsCreate(ImGuiID id, int columns_count);
IMGUI_API ImGuiTableSettings* TableSettingsFindByID(ImGuiID id);
// Tab Bars
inline ImGuiTabBar* GetCurrentTabBar() { ImGuiContext& g = *GImGui; return g.CurrentTabBar; }
IMGUI_API bool BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& bb, ImGuiTabBarFlags flags);
IMGUI_API ImGuiTabItem* TabBarFindTabByID(ImGuiTabBar* tab_bar, ImGuiID tab_id);
IMGUI_API ImGuiTabItem* TabBarFindTabByOrder(ImGuiTabBar* tab_bar, int order);
IMGUI_API ImGuiTabItem* TabBarGetCurrentTab(ImGuiTabBar* tab_bar);
inline int TabBarGetTabOrder(ImGuiTabBar* tab_bar, ImGuiTabItem* tab) { return tab_bar->Tabs.index_from_ptr(tab); }
IMGUI_API const char* TabBarGetTabName(ImGuiTabBar* tab_bar, ImGuiTabItem* tab);
IMGUI_API void TabBarRemoveTab(ImGuiTabBar* tab_bar, ImGuiID tab_id);
IMGUI_API void TabBarCloseTab(ImGuiTabBar* tab_bar, ImGuiTabItem* tab);
IMGUI_API void TabBarQueueFocus(ImGuiTabBar* tab_bar, ImGuiTabItem* tab);
IMGUI_API void TabBarQueueReorder(ImGuiTabBar* tab_bar, ImGuiTabItem* tab, int offset);
IMGUI_API void TabBarQueueReorderFromMousePos(ImGuiTabBar* tab_bar, ImGuiTabItem* tab, ImVec2 mouse_pos);
IMGUI_API bool TabBarProcessReorder(ImGuiTabBar* tab_bar);
IMGUI_API bool TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open, ImGuiTabItemFlags flags, ImGuiWindow* docked_window);
IMGUI_API ImVec2 TabItemCalcSize(const char* label, bool has_close_button_or_unsaved_marker);
IMGUI_API ImVec2 TabItemCalcSize(ImGuiWindow* window);
IMGUI_API void TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImU32 col);
IMGUI_API void TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImVec2 frame_padding, const char* label, ImGuiID tab_id, ImGuiID close_button_id, bool is_contents_visible, bool* out_just_closed, bool* out_text_clipped);
// Render helpers
// AVOID USING OUTSIDE OF IMGUI.CPP! NOT FOR PUBLIC CONSUMPTION. THOSE FUNCTIONS ARE A MESS. THEIR SIGNATURE AND BEHAVIOR WILL CHANGE, THEY NEED TO BE REFACTORED INTO SOMETHING DECENT.
// NB: All position are in absolute pixels coordinates (we are never using window coordinates internally)
IMGUI_API void RenderText(ImVec2 pos, const char* text, const char* text_end = NULL, bool hide_text_after_hash = true);
IMGUI_API void RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end, float wrap_width);
IMGUI_API void RenderTextClipped(const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align = ImVec2(0, 0), const ImRect* clip_rect = NULL);
IMGUI_API void RenderTextClippedEx(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align = ImVec2(0, 0), const ImRect* clip_rect = NULL);
IMGUI_API void RenderTextEllipsis(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, float clip_max_x, float ellipsis_max_x, const char* text, const char* text_end, const ImVec2* text_size_if_known);
IMGUI_API void RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border = true, float rounding = 0.0f);
IMGUI_API void RenderFrameBorder(ImVec2 p_min, ImVec2 p_max, float rounding = 0.0f);
IMGUI_API void RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, float grid_step, ImVec2 grid_off, float rounding = 0.0f, ImDrawFlags flags = 0);
IMGUI_API void RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFlags flags = ImGuiNavHighlightFlags_TypeDefault); // Navigation highlight
IMGUI_API const char* FindRenderedTextEnd(const char* text, const char* text_end = NULL); // Find the optional ## from which we stop displaying text.
IMGUI_API void RenderMouseCursor(ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow);
// Render helpers (those functions don't access any ImGui state!)
IMGUI_API void RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale = 1.0f);
IMGUI_API void RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col);
IMGUI_API void RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz);
IMGUI_API void RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col);
IMGUI_API void RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding);
IMGUI_API void RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding);
// Widgets
IMGUI_API void TextEx(const char* text, const char* text_end = NULL, ImGuiTextFlags flags = 0);
IMGUI_API bool ButtonEx(const char* label, const ImVec2& size_arg = ImVec2(0, 0), ImGuiButtonFlags flags = 0);
IMGUI_API bool ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size_arg, ImGuiButtonFlags flags = 0);
IMGUI_API bool ImageButtonEx(ImGuiID id, ImTextureID texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& bg_col, const ImVec4& tint_col, ImGuiButtonFlags flags = 0);
IMGUI_API void SeparatorEx(ImGuiSeparatorFlags flags);
IMGUI_API void SeparatorTextEx(ImGuiID id, const char* label, const char* label_end, float extra_width);
IMGUI_API bool CheckboxFlags(const char* label, ImS64* flags, ImS64 flags_value);
IMGUI_API bool CheckboxFlags(const char* label, ImU64* flags, ImU64 flags_value);
// Widgets: Window Decorations
IMGUI_API bool CloseButton(ImGuiID id, const ImVec2& pos);
IMGUI_API bool CollapseButton(ImGuiID id, const ImVec2& pos);
IMGUI_API void Scrollbar(ImGuiAxis axis);
IMGUI_API bool ScrollbarEx(const ImRect& bb, ImGuiID id, ImGuiAxis axis, ImS64* p_scroll_v, ImS64 avail_v, ImS64 contents_v, ImDrawFlags flags);
IMGUI_API ImRect GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis);
IMGUI_API ImGuiID GetWindowScrollbarID(ImGuiWindow* window, ImGuiAxis axis);
IMGUI_API ImGuiID GetWindowResizeCornerID(ImGuiWindow* window, int n); // 0..3: corners
IMGUI_API ImGuiID GetWindowResizeBorderID(ImGuiWindow* window, ImGuiDir dir);
// Widgets low-level behaviors
IMGUI_API bool ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags = 0);
IMGUI_API bool DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags);
IMGUI_API bool SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
IMGUI_API bool SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f, float hover_visibility_delay = 0.0f, ImU32 bg_col = 0);
IMGUI_API bool TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
IMGUI_API void TreePushOverrideID(ImGuiID id);
IMGUI_API void TreeNodeSetOpen(ImGuiID id, bool open);
IMGUI_API bool TreeNodeUpdateNextOpen(ImGuiID id, ImGuiTreeNodeFlags flags); // Return open state. Consume previous SetNextItemOpen() data, if any. May return true when logging.
// Template functions are instantiated in imgui_widgets.cpp for a finite number of types.
// To use them externally (for custom widget) you may need an "extern template" statement in your code in order to link to existing instances and silence Clang warnings (see #2036).
// e.g. " extern template IMGUI_API float RoundScalarWithFormatT<float, float>(const char* format, ImGuiDataType data_type, float v); "
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API float ScaleRatioFromValueT(ImGuiDataType data_type, T v, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API T ScaleValueFromRatioT(ImGuiDataType data_type, float t, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API bool DragBehaviorT(ImGuiDataType data_type, T* v, float v_speed, T v_min, T v_max, const char* format, ImGuiSliderFlags flags);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API bool SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, T* v, T v_min, T v_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
template<typename T> IMGUI_API T RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, T v);
template<typename T> IMGUI_API bool CheckboxFlagsT(const char* label, T* flags, T flags_value);
// Data type helpers
IMGUI_API const ImGuiDataTypeInfo* DataTypeGetInfo(ImGuiDataType data_type);
IMGUI_API int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format);
IMGUI_API void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg_1, const void* arg_2);
IMGUI_API bool DataTypeApplyFromText(const char* buf, ImGuiDataType data_type, void* p_data, const char* format);
IMGUI_API int DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2);
IMGUI_API bool DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max);
// InputText
IMGUI_API bool InputTextEx(const char* label, const char* hint, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool TempInputText(const ImRect& bb, ImGuiID id, const char* label, char* buf, int buf_size, ImGuiInputTextFlags flags);
IMGUI_API bool TempInputScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* p_data, const char* format, const void* p_clamp_min = NULL, const void* p_clamp_max = NULL);
inline bool TempInputIsActive(ImGuiID id) { ImGuiContext& g = *GImGui; return (g.ActiveId == id && g.TempInputId == id); }
inline ImGuiInputTextState* GetInputTextState(ImGuiID id) { ImGuiContext& g = *GImGui; return (id != 0 && g.InputTextState.ID == id) ? &g.InputTextState : NULL; } // Get input text state if active
// Color
IMGUI_API void ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags);
IMGUI_API void ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags);
IMGUI_API void ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags);
// Plot
IMGUI_API int PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, const ImVec2& size_arg);
// Shade functions (write over already created vertices)
IMGUI_API void ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1);
IMGUI_API void ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp);
// Garbage collection
IMGUI_API void GcCompactTransientMiscBuffers();
IMGUI_API void GcCompactTransientWindowBuffers(ImGuiWindow* window);
IMGUI_API void GcAwakeTransientWindowBuffers(ImGuiWindow* window);
// Debug Log
IMGUI_API void DebugLog(const char* fmt, ...) IM_FMTARGS(1);
IMGUI_API void DebugLogV(const char* fmt, va_list args) IM_FMTLIST(1);
// Debug Tools
IMGUI_API void ErrorCheckEndFrameRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
IMGUI_API void ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
IMGUI_API void ErrorCheckUsingSetCursorPosToExtendParentBoundaries();
IMGUI_API void DebugLocateItem(ImGuiID target_id); // Call sparingly: only 1 at the same time!
IMGUI_API void DebugLocateItemOnHover(ImGuiID target_id); // Only call on reaction to a mouse Hover: because only 1 at the same time!
IMGUI_API void DebugLocateItemResolveWithLastItem();
inline void DebugDrawItemRect(ImU32 col = IM_COL32(255,0,0,255)) { ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; GetForegroundDrawList(window)->AddRect(g.LastItemData.Rect.Min, g.LastItemData.Rect.Max, col); }
inline void DebugStartItemPicker() { ImGuiContext& g = *GImGui; g.DebugItemPickerActive = true; }
IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas);
IMGUI_API void DebugHookIdInfo(ImGuiID id, ImGuiDataType data_type, const void* data_id, const void* data_id_end);
IMGUI_API void DebugNodeColumns(ImGuiOldColumns* columns);
IMGUI_API void DebugNodeDrawList(ImGuiWindow* window, const ImDrawList* draw_list, const char* label);
IMGUI_API void DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, const ImDrawList* draw_list, const ImDrawCmd* draw_cmd, bool show_mesh, bool show_aabb);
IMGUI_API void DebugNodeFont(ImFont* font);
IMGUI_API void DebugNodeFontGlyph(ImFont* font, const ImFontGlyph* glyph);
IMGUI_API void DebugNodeStorage(ImGuiStorage* storage, const char* label);
IMGUI_API void DebugNodeTabBar(ImGuiTabBar* tab_bar, const char* label);
IMGUI_API void DebugNodeTable(ImGuiTable* table);
IMGUI_API void DebugNodeTableSettings(ImGuiTableSettings* settings);
IMGUI_API void DebugNodeInputTextState(ImGuiInputTextState* state);
IMGUI_API void DebugNodeWindow(ImGuiWindow* window, const char* label);
IMGUI_API void DebugNodeWindowSettings(ImGuiWindowSettings* settings);
IMGUI_API void DebugNodeWindowsList(ImVector<ImGuiWindow*>* windows, const char* label);
IMGUI_API void DebugNodeWindowsListByBeginStackParent(ImGuiWindow** windows, int windows_size, ImGuiWindow* parent_in_begin_stack);
IMGUI_API void DebugNodeViewport(ImGuiViewportP* viewport);
IMGUI_API void DebugRenderKeyboardPreview(ImDrawList* draw_list);
IMGUI_API void DebugRenderViewportThumbnail(ImDrawList* draw_list, ImGuiViewportP* viewport, const ImRect& bb);
// Obsolete functions
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
inline void SetItemUsingMouseWheel() { SetItemKeyOwner(ImGuiKey_MouseWheelY); } // Changed in 1.89
inline bool TreeNodeBehaviorIsOpen(ImGuiID id, ImGuiTreeNodeFlags flags = 0) { return TreeNodeUpdateNextOpen(id, flags); } // Renamed in 1.89
// Refactored focus/nav/tabbing system in 1.82 and 1.84. If you have old/custom copy-and-pasted widgets that used FocusableItemRegister():
// (Old) IMGUI_VERSION_NUM < 18209: using 'ItemAdd(....)' and 'bool tab_focused = FocusableItemRegister(...)'
// (Old) IMGUI_VERSION_NUM >= 18209: using 'ItemAdd(..., ImGuiItemAddFlags_Focusable)' and 'bool tab_focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_Focused) != 0'
// (New) IMGUI_VERSION_NUM >= 18413: using 'ItemAdd(..., ImGuiItemFlags_Inputable)' and 'bool tab_focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_FocusedTabbing) != 0 || (g.NavActivateId == id && (g.NavActivateFlags & ImGuiActivateFlags_PreferInput))' (WIP)
// Widget code are simplified as there's no need to call FocusableItemUnregister() while managing the transition from regular widget to TempInputText()
inline bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id) { IM_ASSERT(0); IM_UNUSED(window); IM_UNUSED(id); return false; } // -> pass ImGuiItemAddFlags_Inputable flag to ItemAdd()
inline void FocusableItemUnregister(ImGuiWindow* window) { IM_ASSERT(0); IM_UNUSED(window); } // -> unnecessary: TempInputText() uses ImGuiInputTextFlags_MergedItem
#endif
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
inline bool IsKeyPressedMap(ImGuiKey key, bool repeat = true) { IM_ASSERT(IsNamedKey(key)); return IsKeyPressed(key, repeat); } // Removed in 1.87: Mapping from named key is always identity!
#endif
} // namespace ImGui
//-----------------------------------------------------------------------------
// [SECTION] ImFontAtlas internal API
//-----------------------------------------------------------------------------
// This structure is likely to evolve as we add support for incremental atlas updates
struct ImFontBuilderIO
{
bool (*FontBuilder_Build)(ImFontAtlas* atlas);
};
// Helper for font builder
#ifdef IMGUI_ENABLE_STB_TRUETYPE
IMGUI_API const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype();
#endif
IMGUI_API void ImFontAtlasBuildInit(ImFontAtlas* atlas);
IMGUI_API void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent);
IMGUI_API void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque);
IMGUI_API void ImFontAtlasBuildFinish(ImFontAtlas* atlas);
IMGUI_API void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value);
IMGUI_API void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value);
IMGUI_API void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_multiply_factor);
IMGUI_API void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride);
//-----------------------------------------------------------------------------
// [SECTION] Test Engine specific hooks (imgui_test_engine)
//-----------------------------------------------------------------------------
#ifdef IMGUI_ENABLE_TEST_ENGINE
extern void ImGuiTestEngineHook_ItemAdd(ImGuiContext* ctx, ImGuiID id, const ImRect& bb, const ImGuiLastItemData* item_data); // item_data may be NULL
extern void ImGuiTestEngineHook_ItemInfo(ImGuiContext* ctx, ImGuiID id, const char* label, ImGuiItemStatusFlags flags);
extern void ImGuiTestEngineHook_Log(ImGuiContext* ctx, const char* fmt, ...);
extern const char* ImGuiTestEngine_FindItemDebugLabel(ImGuiContext* ctx, ImGuiID id);
// In IMGUI_VERSION_NUM >= 18934: changed IMGUI_TEST_ENGINE_ITEM_ADD(bb,id) to IMGUI_TEST_ENGINE_ITEM_ADD(id,bb,item_data);
#define IMGUI_TEST_ENGINE_ITEM_ADD(_ID,_BB,_ITEM_DATA) if (g.TestEngineHookItems) ImGuiTestEngineHook_ItemAdd(&g, _ID, _BB, _ITEM_DATA) // Register item bounding box
#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS) if (g.TestEngineHookItems) ImGuiTestEngineHook_ItemInfo(&g, _ID, _LABEL, _FLAGS) // Register item label and status flags (optional)
#define IMGUI_TEST_ENGINE_LOG(_FMT,...) if (g.TestEngineHookItems) ImGuiTestEngineHook_Log(&g, _FMT, __VA_ARGS__) // Custom log entry from user land into test log
#else
#define IMGUI_TEST_ENGINE_ITEM_ADD(_BB,_ID) ((void)0)
#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS) ((void)g)
#endif
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#elif defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#ifdef _MSC_VER
#pragma warning (pop)
#endif
#endif // #ifndef IMGUI_DISABLE
|
0 | repos/zig_vulkan/deps/zgui/libs/imgui | repos/zig_vulkan/deps/zgui/libs/imgui/backends/imgui_impl_dx12.h | // dear imgui: Renderer Backend for DirectX12
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
// See imgui_impl_dx12.cpp file for details.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
#include <dxgiformat.h> // DXGI_FORMAT
struct ID3D12Device;
struct ID3D12DescriptorHeap;
struct ID3D12GraphicsCommandList;
struct D3D12_CPU_DESCRIPTOR_HANDLE;
struct D3D12_GPU_DESCRIPTOR_HANDLE;
extern "C" { // mziulek
// cmd_list is the command list that the implementation will use to render imgui draw lists.
// Before calling the render function, caller must prepare cmd_list by resetting it and setting the appropriate
// render target and descriptor heap that contains font_srv_cpu_desc_handle/font_srv_gpu_desc_handle.
// font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture.
IMGUI_IMPL_API bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* cbv_srv_heap,
D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
IMGUI_IMPL_API void ImGui_ImplDX12_Shutdown();
IMGUI_IMPL_API void ImGui_ImplDX12_NewFrame();
IMGUI_IMPL_API void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* graphics_command_list);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplDX12_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX12_CreateDeviceObjects();
}
|
0 | repos/zig_vulkan/deps/zgui/libs/imgui | repos/zig_vulkan/deps/zgui/libs/imgui/backends/imgui_impl_dx12.cpp | // dear imgui: Renderer Backend for DirectX12
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
// This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
// To build this on 32-bit systems:
// - [Solution 1] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'ImTextureID=ImU64' (this is what we do in the 'example_win32_direct12/example_win32_direct12.vcxproj' project file)
// - [Solution 2] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'IMGUI_USER_CONFIG="my_imgui_config.h"' and inside 'my_imgui_config.h' add '#define ImTextureID ImU64' and as many other options as you like.
// - [Solution 3] IDE/msbuild: edit imconfig.h and add '#define ImTextureID ImU64' (prefer solution 2 to create your own config file!)
// - [Solution 4] command-line: add '/D ImTextureID=ImU64' to your cl.exe command-line (this is what we do in the example_win32_direct12/build_win32.bat file)
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-05-19: DirectX12: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-02-18: DirectX12: Change blending equation to preserve alpha in output buffer.
// 2021-01-11: DirectX12: Improve Windows 7 compatibility (for D3D12On7) by loading d3d12.dll dynamically.
// 2020-09-16: DirectX12: Avoid rendering calls with zero-sized scissor rectangle since it generates a validation layer warning.
// 2020-09-08: DirectX12: Clarified support for building on 32-bit systems by redefining ImTextureID.
// 2019-10-18: DirectX12: *BREAKING CHANGE* Added extra ID3D12DescriptorHeap parameter to ImGui_ImplDX12_Init() function.
// 2019-05-29: DirectX12: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: DirectX12: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2019-03-29: Misc: Various minor tidying up.
// 2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-06-12: DirectX12: Moved the ID3D12GraphicsCommandList* parameter from NewFrame() to RenderDrawData().
// 2018-06-08: Misc: Extracted imgui_impl_dx12.cpp/.h away from the old combined DX12+Win32 example.
// 2018-06-08: DirectX12: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle (to ease support for future multi-viewport).
// 2018-02-22: Merged into master with all Win32 code synchronized to other examples.
#include "imgui.h"
#include "imgui_impl_dx12.h"
// DirectX
#include <d3d12.h>
#include <dxgi1_4.h>
#include <d3dcompiler.h>
#ifdef _MSC_VER
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#else // mziulek: PFN_D3D12_SERIALIZE_ROOT_SIGNATURE is not defined when using MinGW
typedef HRESULT (WINAPI* PFN_D3D12_SERIALIZE_ROOT_SIGNATURE)(
const D3D12_ROOT_SIGNATURE_DESC* pRootSignature,
D3D_ROOT_SIGNATURE_VERSION Version,
ID3DBlob** ppBlob,
ID3DBlob** ppErrorBlob);
#endif
// DirectX data
struct ImGui_ImplDX12_RenderBuffers
{
ID3D12Resource* IndexBuffer;
ID3D12Resource* VertexBuffer;
int IndexBufferSize;
int VertexBufferSize;
};
struct ImGui_ImplDX12_Data
{
ID3D12Device* pd3dDevice;
ID3D12RootSignature* pRootSignature;
ID3D12PipelineState* pPipelineState;
DXGI_FORMAT RTVFormat;
ID3D12Resource* pFontTextureResource;
D3D12_CPU_DESCRIPTOR_HANDLE hFontSrvCpuDescHandle;
D3D12_GPU_DESCRIPTOR_HANDLE hFontSrvGpuDescHandle;
ImGui_ImplDX12_RenderBuffers* pFrameResources;
UINT numFramesInFlight;
UINT frameIndex;
ImGui_ImplDX12_Data() { memset((void*)this, 0, sizeof(*this)); frameIndex = UINT_MAX; }
};
struct VERTEX_CONSTANT_BUFFER_DX12
{
float mvp[4][4];
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplDX12_Data* ImGui_ImplDX12_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplDX12_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
}
// Functions
static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12GraphicsCommandList* ctx, ImGui_ImplDX12_RenderBuffers* fr)
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
// Setup orthographic projection matrix into our constant buffer
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
VERTEX_CONSTANT_BUFFER_DX12 vertex_constant_buffer;
{
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
float mvp[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
};
memcpy(&vertex_constant_buffer.mvp, mvp, sizeof(mvp));
}
// Setup viewport
D3D12_VIEWPORT vp;
memset(&vp, 0, sizeof(D3D12_VIEWPORT));
vp.Width = draw_data->DisplaySize.x;
vp.Height = draw_data->DisplaySize.y;
vp.MinDepth = 0.0f;
vp.MaxDepth = 1.0f;
vp.TopLeftX = vp.TopLeftY = 0.0f;
ctx->RSSetViewports(1, &vp);
// Bind shader and vertex buffers
unsigned int stride = sizeof(ImDrawVert);
unsigned int offset = 0;
D3D12_VERTEX_BUFFER_VIEW vbv;
memset(&vbv, 0, sizeof(D3D12_VERTEX_BUFFER_VIEW));
vbv.BufferLocation = fr->VertexBuffer->GetGPUVirtualAddress() + offset;
vbv.SizeInBytes = fr->VertexBufferSize * stride;
vbv.StrideInBytes = stride;
ctx->IASetVertexBuffers(0, 1, &vbv);
D3D12_INDEX_BUFFER_VIEW ibv;
memset(&ibv, 0, sizeof(D3D12_INDEX_BUFFER_VIEW));
ibv.BufferLocation = fr->IndexBuffer->GetGPUVirtualAddress();
ibv.SizeInBytes = fr->IndexBufferSize * sizeof(ImDrawIdx);
ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
ctx->IASetIndexBuffer(&ibv);
ctx->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
ctx->SetPipelineState(bd->pPipelineState);
ctx->SetGraphicsRootSignature(bd->pRootSignature);
ctx->SetGraphicsRoot32BitConstants(0, 16, &vertex_constant_buffer, 0);
// Setup blend factor
const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
ctx->OMSetBlendFactor(blend_factor);
}
template<typename T>
static inline void SafeRelease(T*& res)
{
if (res)
res->Release();
res = nullptr;
}
// Render function
void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* ctx)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// FIXME: I'm assuming that this only gets called once per frame!
// If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
bd->frameIndex = bd->frameIndex + 1;
ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[bd->frameIndex % bd->numFramesInFlight];
// Create and grow vertex/index buffers if needed
if (fr->VertexBuffer == nullptr || fr->VertexBufferSize < draw_data->TotalVtxCount)
{
SafeRelease(fr->VertexBuffer);
fr->VertexBufferSize = draw_data->TotalVtxCount + 5000;
D3D12_HEAP_PROPERTIES props;
memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
props.Type = D3D12_HEAP_TYPE_UPLOAD;
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
D3D12_RESOURCE_DESC desc;
memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Width = fr->VertexBufferSize * sizeof(ImDrawVert);
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
desc.Format = DXGI_FORMAT_UNKNOWN;
desc.SampleDesc.Count = 1;
desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;
if (bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, nullptr, IID_PPV_ARGS(&fr->VertexBuffer)) < 0)
return;
}
if (fr->IndexBuffer == nullptr || fr->IndexBufferSize < draw_data->TotalIdxCount)
{
SafeRelease(fr->IndexBuffer);
fr->IndexBufferSize = draw_data->TotalIdxCount + 10000;
D3D12_HEAP_PROPERTIES props;
memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
props.Type = D3D12_HEAP_TYPE_UPLOAD;
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
D3D12_RESOURCE_DESC desc;
memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Width = fr->IndexBufferSize * sizeof(ImDrawIdx);
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
desc.Format = DXGI_FORMAT_UNKNOWN;
desc.SampleDesc.Count = 1;
desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;
if (bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, nullptr, IID_PPV_ARGS(&fr->IndexBuffer)) < 0)
return;
}
// Upload vertex/index data into a single contiguous GPU buffer
void* vtx_resource, *idx_resource;
D3D12_RANGE range;
memset(&range, 0, sizeof(D3D12_RANGE));
if (fr->VertexBuffer->Map(0, &range, &vtx_resource) != S_OK)
return;
if (fr->IndexBuffer->Map(0, &range, &idx_resource) != S_OK)
return;
ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource;
ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
vtx_dst += cmd_list->VtxBuffer.Size;
idx_dst += cmd_list->IdxBuffer.Size;
}
fr->VertexBuffer->Unmap(0, &range);
fr->IndexBuffer->Unmap(0, &range);
// Setup desired DX state
ImGui_ImplDX12_SetupRenderState(draw_data, ctx, fr);
// Render command lists
// (Because we merged all buffers into a single one, we maintain our own offset into them)
int global_vtx_offset = 0;
int global_idx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback != nullptr)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplDX12_SetupRenderState(draw_data, ctx, fr);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
continue;
// Apply Scissor/clipping rectangle, Bind texture, Draw
const D3D12_RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
D3D12_GPU_DESCRIPTOR_HANDLE texture_handle = {};
texture_handle.ptr = (UINT64)pcmd->GetTexID();
ctx->SetGraphicsRootDescriptorTable(1, texture_handle);
ctx->RSSetScissorRects(1, &r);
ctx->DrawIndexedInstanced(pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
}
}
global_idx_offset += cmd_list->IdxBuffer.Size;
global_vtx_offset += cmd_list->VtxBuffer.Size;
}
}
static void ImGui_ImplDX12_CreateFontsTexture()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
// Upload texture to graphics system
{
D3D12_HEAP_PROPERTIES props;
memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
props.Type = D3D12_HEAP_TYPE_DEFAULT;
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
D3D12_RESOURCE_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
desc.Alignment = 0;
desc.Width = width;
desc.Height = height;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;
ID3D12Resource* pTexture = nullptr;
bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
D3D12_RESOURCE_STATE_COPY_DEST, nullptr, IID_PPV_ARGS(&pTexture));
UINT uploadPitch = (width * 4 + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
UINT uploadSize = height * uploadPitch;
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Alignment = 0;
desc.Width = uploadSize;
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
desc.Format = DXGI_FORMAT_UNKNOWN;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;
props.Type = D3D12_HEAP_TYPE_UPLOAD;
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
ID3D12Resource* uploadBuffer = nullptr;
HRESULT hr = bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
D3D12_RESOURCE_STATE_GENERIC_READ, nullptr, IID_PPV_ARGS(&uploadBuffer));
IM_ASSERT(SUCCEEDED(hr));
void* mapped = nullptr;
D3D12_RANGE range = { 0, uploadSize };
hr = uploadBuffer->Map(0, &range, &mapped);
IM_ASSERT(SUCCEEDED(hr));
for (int y = 0; y < height; y++)
memcpy((void*) ((uintptr_t) mapped + y * uploadPitch), pixels + y * width * 4, width * 4);
uploadBuffer->Unmap(0, &range);
D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
srcLocation.pResource = uploadBuffer;
srcLocation.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
srcLocation.PlacedFootprint.Footprint.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
srcLocation.PlacedFootprint.Footprint.Width = width;
srcLocation.PlacedFootprint.Footprint.Height = height;
srcLocation.PlacedFootprint.Footprint.Depth = 1;
srcLocation.PlacedFootprint.Footprint.RowPitch = uploadPitch;
D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
dstLocation.pResource = pTexture;
dstLocation.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
dstLocation.SubresourceIndex = 0;
D3D12_RESOURCE_BARRIER barrier = {};
barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
barrier.Transition.pResource = pTexture;
barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_COPY_DEST;
barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
ID3D12Fence* fence = nullptr;
hr = bd->pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&fence));
IM_ASSERT(SUCCEEDED(hr));
HANDLE event = CreateEvent(0, 0, 0, 0);
IM_ASSERT(event != nullptr);
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
queueDesc.NodeMask = 1;
ID3D12CommandQueue* cmdQueue = nullptr;
hr = bd->pd3dDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&cmdQueue));
IM_ASSERT(SUCCEEDED(hr));
ID3D12CommandAllocator* cmdAlloc = nullptr;
hr = bd->pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&cmdAlloc));
IM_ASSERT(SUCCEEDED(hr));
ID3D12GraphicsCommandList* cmdList = nullptr;
hr = bd->pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, cmdAlloc, nullptr, IID_PPV_ARGS(&cmdList));
IM_ASSERT(SUCCEEDED(hr));
cmdList->CopyTextureRegion(&dstLocation, 0, 0, 0, &srcLocation, nullptr);
cmdList->ResourceBarrier(1, &barrier);
hr = cmdList->Close();
IM_ASSERT(SUCCEEDED(hr));
cmdQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*)&cmdList);
hr = cmdQueue->Signal(fence, 1);
IM_ASSERT(SUCCEEDED(hr));
fence->SetEventOnCompletion(1, event);
WaitForSingleObject(event, INFINITE);
cmdList->Release();
cmdAlloc->Release();
cmdQueue->Release();
CloseHandle(event);
fence->Release();
uploadBuffer->Release();
// Create texture view
D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc;
ZeroMemory(&srvDesc, sizeof(srvDesc));
srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
srvDesc.Texture2D.MipLevels = desc.MipLevels;
srvDesc.Texture2D.MostDetailedMip = 0;
srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
bd->pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, bd->hFontSrvCpuDescHandle);
SafeRelease(bd->pFontTextureResource);
bd->pFontTextureResource = pTexture;
}
// Store our identifier
// READ THIS IF THE STATIC_ASSERT() TRIGGERS:
// - Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
// - This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
// [Solution 1] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'ImTextureID=ImU64' (this is what we do in the 'example_win32_direct12/example_win32_direct12.vcxproj' project file)
// [Solution 2] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'IMGUI_USER_CONFIG="my_imgui_config.h"' and inside 'my_imgui_config.h' add '#define ImTextureID ImU64' and as many other options as you like.
// [Solution 3] IDE/msbuild: edit imconfig.h and add '#define ImTextureID ImU64' (prefer solution 2 to create your own config file!)
// [Solution 4] command-line: add '/D ImTextureID=ImU64' to your cl.exe command-line (this is what we do in the example_win32_direct12/build_win32.bat file)
static_assert(sizeof(ImTextureID) >= sizeof(bd->hFontSrvGpuDescHandle.ptr), "Can't pack descriptor handle into TexID, 32-bit not supported yet.");
io.Fonts->SetTexID((ImTextureID)bd->hFontSrvGpuDescHandle.ptr);
}
bool ImGui_ImplDX12_CreateDeviceObjects()
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
if (!bd || !bd->pd3dDevice)
return false;
if (bd->pPipelineState)
ImGui_ImplDX12_InvalidateDeviceObjects();
// Create the root signature
{
D3D12_DESCRIPTOR_RANGE descRange = {};
descRange.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
descRange.NumDescriptors = 1;
descRange.BaseShaderRegister = 0;
descRange.RegisterSpace = 0;
descRange.OffsetInDescriptorsFromTableStart = 0;
D3D12_ROOT_PARAMETER param[2] = {};
param[0].ParameterType = D3D12_ROOT_PARAMETER_TYPE_32BIT_CONSTANTS;
param[0].Constants.ShaderRegister = 0;
param[0].Constants.RegisterSpace = 0;
param[0].Constants.Num32BitValues = 16;
param[0].ShaderVisibility = D3D12_SHADER_VISIBILITY_VERTEX;
param[1].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
param[1].DescriptorTable.NumDescriptorRanges = 1;
param[1].DescriptorTable.pDescriptorRanges = &descRange;
param[1].ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
// Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
D3D12_STATIC_SAMPLER_DESC staticSampler = {};
staticSampler.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
staticSampler.AddressU = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
staticSampler.AddressV = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
staticSampler.AddressW = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
staticSampler.MipLODBias = 0.f;
staticSampler.MaxAnisotropy = 0;
staticSampler.ComparisonFunc = D3D12_COMPARISON_FUNC_ALWAYS;
staticSampler.BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
staticSampler.MinLOD = 0.f;
staticSampler.MaxLOD = 0.f;
staticSampler.ShaderRegister = 0;
staticSampler.RegisterSpace = 0;
staticSampler.ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
D3D12_ROOT_SIGNATURE_DESC desc = {};
desc.NumParameters = _countof(param);
desc.pParameters = param;
desc.NumStaticSamplers = 1;
desc.pStaticSamplers = &staticSampler;
desc.Flags =
D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS;
// Load d3d12.dll and D3D12SerializeRootSignature() function address dynamically to facilitate using with D3D12On7.
// See if any version of d3d12.dll is already loaded in the process. If so, give preference to that.
static HINSTANCE d3d12_dll = ::GetModuleHandleA("d3d12.dll");
if (d3d12_dll == nullptr)
{
// Attempt to load d3d12.dll from local directories. This will only succeed if
// (1) the current OS is Windows 7, and
// (2) there exists a version of d3d12.dll for Windows 7 (D3D12On7) in one of the following directories.
// See https://github.com/ocornut/imgui/pull/3696 for details.
const char* localD3d12Paths[] = { ".\\d3d12.dll", ".\\d3d12on7\\d3d12.dll", ".\\12on7\\d3d12.dll" }; // A. current directory, B. used by some games, C. used in Microsoft D3D12On7 sample
for (int i = 0; i < IM_ARRAYSIZE(localD3d12Paths); i++)
if ((d3d12_dll = ::LoadLibraryA(localD3d12Paths[i])) != nullptr)
break;
// If failed, we are on Windows >= 10.
if (d3d12_dll == nullptr)
d3d12_dll = ::LoadLibraryA("d3d12.dll");
if (d3d12_dll == nullptr)
return false;
}
PFN_D3D12_SERIALIZE_ROOT_SIGNATURE D3D12SerializeRootSignatureFn = (PFN_D3D12_SERIALIZE_ROOT_SIGNATURE)::GetProcAddress(d3d12_dll, "D3D12SerializeRootSignature");
if (D3D12SerializeRootSignatureFn == nullptr)
return false;
ID3DBlob* blob = nullptr;
if (D3D12SerializeRootSignatureFn(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, nullptr) != S_OK)
return false;
bd->pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&bd->pRootSignature));
blob->Release();
}
// By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
// If you would like to use this DX12 sample code but remove this dependency you can:
// 1) compile once, save the compiled shader blobs into a file or source code and assign them to psoDesc.VS/PS [preferred solution]
// 2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
// See https://github.com/ocornut/imgui/pull/638 for sources and details.
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc;
memset(&psoDesc, 0, sizeof(D3D12_GRAPHICS_PIPELINE_STATE_DESC));
psoDesc.NodeMask = 1;
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.pRootSignature = bd->pRootSignature;
psoDesc.SampleMask = UINT_MAX;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = bd->RTVFormat;
psoDesc.SampleDesc.Count = 1;
psoDesc.Flags = D3D12_PIPELINE_STATE_FLAG_NONE;
ID3DBlob* vertexShaderBlob;
ID3DBlob* pixelShaderBlob;
// Create the vertex shader
{
static const char* vertexShader =
"cbuffer vertexBuffer : register(b0) \
{\
float4x4 ProjectionMatrix; \
};\
struct VS_INPUT\
{\
float2 pos : POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
\
struct PS_INPUT\
{\
float4 pos : SV_POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
\
PS_INPUT main(VS_INPUT input)\
{\
PS_INPUT output;\
output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
output.col = input.col;\
output.uv = input.uv;\
return output;\
}";
if (FAILED(D3DCompile(vertexShader, strlen(vertexShader), nullptr, nullptr, nullptr, "main", "vs_5_0", 0, 0, &vertexShaderBlob, nullptr)))
return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
psoDesc.VS = { vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize() };
// Create the input layout
static D3D12_INPUT_ELEMENT_DESC local_layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
psoDesc.InputLayout = { local_layout, 3 };
}
// Create the pixel shader
{
static const char* pixelShader =
"struct PS_INPUT\
{\
float4 pos : SV_POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
SamplerState sampler0 : register(s0);\
Texture2D texture0 : register(t0);\
\
float4 main(PS_INPUT input) : SV_Target\
{\
float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
return out_col; \
}";
if (FAILED(D3DCompile(pixelShader, strlen(pixelShader), nullptr, nullptr, nullptr, "main", "ps_5_0", 0, 0, &pixelShaderBlob, nullptr)))
{
vertexShaderBlob->Release();
return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
}
psoDesc.PS = { pixelShaderBlob->GetBufferPointer(), pixelShaderBlob->GetBufferSize() };
}
// Create the blending setup
{
D3D12_BLEND_DESC& desc = psoDesc.BlendState;
desc.AlphaToCoverageEnable = false;
desc.RenderTarget[0].BlendEnable = true;
desc.RenderTarget[0].SrcBlend = D3D12_BLEND_SRC_ALPHA;
desc.RenderTarget[0].DestBlend = D3D12_BLEND_INV_SRC_ALPHA;
desc.RenderTarget[0].BlendOp = D3D12_BLEND_OP_ADD;
desc.RenderTarget[0].SrcBlendAlpha = D3D12_BLEND_ONE;
desc.RenderTarget[0].DestBlendAlpha = D3D12_BLEND_INV_SRC_ALPHA;
desc.RenderTarget[0].BlendOpAlpha = D3D12_BLEND_OP_ADD;
desc.RenderTarget[0].RenderTargetWriteMask = D3D12_COLOR_WRITE_ENABLE_ALL;
}
// Create the rasterizer state
{
D3D12_RASTERIZER_DESC& desc = psoDesc.RasterizerState;
desc.FillMode = D3D12_FILL_MODE_SOLID;
desc.CullMode = D3D12_CULL_MODE_NONE;
desc.FrontCounterClockwise = FALSE;
desc.DepthBias = D3D12_DEFAULT_DEPTH_BIAS;
desc.DepthBiasClamp = D3D12_DEFAULT_DEPTH_BIAS_CLAMP;
desc.SlopeScaledDepthBias = D3D12_DEFAULT_SLOPE_SCALED_DEPTH_BIAS;
desc.DepthClipEnable = true;
desc.MultisampleEnable = FALSE;
desc.AntialiasedLineEnable = FALSE;
desc.ForcedSampleCount = 0;
desc.ConservativeRaster = D3D12_CONSERVATIVE_RASTERIZATION_MODE_OFF;
}
// Create depth-stencil State
{
D3D12_DEPTH_STENCIL_DESC& desc = psoDesc.DepthStencilState;
desc.DepthEnable = false;
desc.DepthWriteMask = D3D12_DEPTH_WRITE_MASK_ALL;
desc.DepthFunc = D3D12_COMPARISON_FUNC_ALWAYS;
desc.StencilEnable = false;
desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D12_STENCIL_OP_KEEP;
desc.FrontFace.StencilFunc = D3D12_COMPARISON_FUNC_ALWAYS;
desc.BackFace = desc.FrontFace;
}
HRESULT result_pipeline_state = bd->pd3dDevice->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&bd->pPipelineState));
vertexShaderBlob->Release();
pixelShaderBlob->Release();
if (result_pipeline_state != S_OK)
return false;
ImGui_ImplDX12_CreateFontsTexture();
return true;
}
void ImGui_ImplDX12_InvalidateDeviceObjects()
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
if (!bd || !bd->pd3dDevice)
return;
ImGuiIO& io = ImGui::GetIO();
SafeRelease(bd->pRootSignature);
SafeRelease(bd->pPipelineState);
SafeRelease(bd->pFontTextureResource);
io.Fonts->SetTexID(0); // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well.
for (UINT i = 0; i < bd->numFramesInFlight; i++)
{
ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[i];
SafeRelease(fr->IndexBuffer);
SafeRelease(fr->VertexBuffer);
}
}
bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* cbv_srv_heap,
D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplDX12_Data* bd = IM_NEW(ImGui_ImplDX12_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_dx12";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
bd->pd3dDevice = device;
bd->RTVFormat = rtv_format;
bd->hFontSrvCpuDescHandle = font_srv_cpu_desc_handle;
bd->hFontSrvGpuDescHandle = font_srv_gpu_desc_handle;
bd->pFrameResources = new ImGui_ImplDX12_RenderBuffers[num_frames_in_flight];
bd->numFramesInFlight = num_frames_in_flight;
bd->frameIndex = UINT_MAX;
IM_UNUSED(cbv_srv_heap); // Unused in master branch (will be used by multi-viewports)
// Create buffers with a default size (they will later be grown as needed)
for (int i = 0; i < num_frames_in_flight; i++)
{
ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[i];
fr->IndexBuffer = nullptr;
fr->VertexBuffer = nullptr;
fr->IndexBufferSize = 10000;
fr->VertexBufferSize = 5000;
}
return true;
}
void ImGui_ImplDX12_Shutdown()
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX12_InvalidateDeviceObjects();
delete[] bd->pFrameResources;
io.BackendRendererName = nullptr;
io.BackendRendererUserData = nullptr;
IM_DELETE(bd);
}
void ImGui_ImplDX12_NewFrame()
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX12_Init()?");
if (!bd->pPipelineState)
ImGui_ImplDX12_CreateDeviceObjects();
}
|
0 | repos/zig_vulkan/deps/zgui/libs/imgui | repos/zig_vulkan/deps/zgui/libs/imgui/backends/imgui_impl_glfw.cpp | // dear imgui: Platform Backend for GLFW
// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
// (Requires: GLFW 3.1+)
// Implemented features:
// [X] Platform: Clipboard support.
// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange' (note: the resizing cursors requires GLFW 3.4+).
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2023-01-04: Inputs: Fixed mods state on Linux when using Alt-GR text input (e.g. German keyboard layout), could lead to broken text input. Revert a 2022/01/17 change were we resumed using mods provided by GLFW, turns out they were faulty.
// 2022-11-22: Perform a dummy glfwGetError() read to cancel missing names with glfwGetKeyName(). (#5908)
// 2022-10-18: Perform a dummy glfwGetError() read to cancel missing mouse cursors errors. Using GLFW_VERSION_COMBINED directly. (#5785)
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
// 2022-09-01: Inputs: Honor GLFW_CURSOR_DISABLED by not setting mouse position.
// 2022-04-30: Inputs: Fixed ImGui_ImplGlfw_TranslateUntranslatedKey() for lower case letters on OSX.
// 2022-03-23: Inputs: Fixed a regression in 1.87 which resulted in keyboard modifiers events being reported incorrectly on Linux/X11.
// 2022-02-07: Added ImGui_ImplGlfw_InstallCallbacks()/ImGui_ImplGlfw_RestoreCallbacks() helpers to facilitate user installing callbacks after initializing backend.
// 2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago)with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
// 2021-01-20: Inputs: calling new io.AddKeyAnalogEvent() for gamepad support, instead of writing directly to io.NavInputs[].
// 2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
// 2022-01-17: Inputs: always update key mods next and before key event (not in NewFrame) to fix input queue with very low framerates.
// 2022-01-12: *BREAKING CHANGE*: Now using glfwSetCursorPosCallback(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetCursorPosCallback() and forward it to the backend via ImGui_ImplGlfw_CursorPosCallback().
// 2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
// 2022-01-05: Inputs: Converting GLFW untranslated keycodes back to translated keycodes (in the ImGui_ImplGlfw_KeyCallback() function) in order to match the behavior of every other backend, and facilitate the use of GLFW with lettered-shortcuts API.
// 2021-08-17: *BREAKING CHANGE*: Now using glfwSetWindowFocusCallback() to calling io.AddFocusEvent(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() and forward it to the backend via ImGui_ImplGlfw_WindowFocusCallback().
// 2021-07-29: *BREAKING CHANGE*: Now using glfwSetCursorEnterCallback(). MousePos is correctly reported when the host platform window is hovered but not focused. If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() callback and forward it to the backend via ImGui_ImplGlfw_CursorEnterCallback().
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2020-01-17: Inputs: Disable error callback while assigning mouse cursors because some X11 setup don't have them and it generates errors.
// 2019-12-05: Inputs: Added support for new mouse cursors added in GLFW 3.4+ (resizing cursors, not allowed cursor).
// 2019-10-18: Misc: Previously installed user callbacks are now restored on shutdown.
// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
// 2019-05-11: Inputs: Don't filter value from character callback before calling AddInputCharacter().
// 2019-03-12: Misc: Preserve DisplayFramebufferScale when main window is minimized.
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
// 2018-11-07: Inputs: When installing our GLFW callbacks, we save user's previously installed ones - if any - and chain call them.
// 2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
// 2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
// 2018-06-08: Misc: Extracted imgui_impl_glfw.cpp/.h away from the old combined GLFW+OpenGL/Vulkan examples.
// 2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
// 2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value, passed to glfwSetCursor()).
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
// 2018-01-25: Inputs: Added gamepad support if ImGuiConfigFlags_NavEnableGamepad is set.
// 2018-01-25: Inputs: Honoring the io.WantSetMousePos by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set).
// 2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
// 2018-01-18: Inputs: Added mapping for ImGuiKey_Insert.
// 2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1).
// 2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
#include "imgui.h"
// Clang warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#endif
// GLFW
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#ifdef _WIN32
#undef APIENTRY
#define GLFW_EXPOSE_NATIVE_WIN32
#include <GLFW/glfw3native.h> // for glfwGetWin32Window
#endif
// We gather version tests as define in order to easily see which features are version-dependent.
#define GLFW_VERSION_COMBINED (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 + GLFW_VERSION_REVISION)
#ifdef GLFW_RESIZE_NESW_CURSOR // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2019-11-29 (cursors defines) // FIXME: Remove when GLFW 3.4 is released?
#define GLFW_HAS_NEW_CURSORS (GLFW_VERSION_COMBINED >= 3400) // 3.4+ GLFW_RESIZE_ALL_CURSOR, GLFW_RESIZE_NESW_CURSOR, GLFW_RESIZE_NWSE_CURSOR, GLFW_NOT_ALLOWED_CURSOR
#else
#define GLFW_HAS_NEW_CURSORS (0)
#endif
#define GLFW_HAS_GAMEPAD_API (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetGamepadState() new api
#define GLFW_HAS_GETKEYNAME (GLFW_VERSION_COMBINED >= 3200) // 3.2+ glfwGetKeyName() //
#include <math.h>
extern "C" {
bool ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks);
bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks);
bool ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks);
void ImGui_ImplGlfw_Shutdown();
void ImGui_ImplGlfw_NewFrame();
// GLFW callbacks (installer)
// - When calling Init with 'install_callbacks=true': ImGui_ImplGlfw_InstallCallbacks() is called. GLFW callbacks will be installed for you. They will chain-call user's previously installed callbacks, if any.
// - When calling Init with 'install_callbacks=false': GLFW callbacks won't be installed. You will need to call individual function yourself from your own GLFW callbacks.
void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window);
void ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window);
// GLFW callbacks (individual callbacks to call if you didn't install callbacks)
void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused); // Since 1.84
void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered); // Since 1.84
void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y); // Since 1.87
void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c);
void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor* monitor, int event);
} // extern "C"
// GLFW data
enum GlfwClientApi
{
GlfwClientApi_Unknown,
GlfwClientApi_OpenGL,
GlfwClientApi_Vulkan
};
struct ImGui_ImplGlfw_Data
{
GLFWwindow* Window;
GlfwClientApi ClientApi;
double Time;
GLFWwindow* MouseWindow;
GLFWcursor* MouseCursors[ImGuiMouseCursor_COUNT];
ImVec2 LastValidMousePos;
bool InstalledCallbacks;
ImVec2 DpiScale; // mziulek: We scale mouse coords so that we have pixel coords on all OSes.
// This also lets us set `FramebufferScale` to 1.0 and always work with pixel coords
// even on macOS Retina displays.
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
GLFWwindowfocusfun PrevUserCallbackWindowFocus;
GLFWcursorposfun PrevUserCallbackCursorPos;
GLFWcursorenterfun PrevUserCallbackCursorEnter;
GLFWmousebuttonfun PrevUserCallbackMousebutton;
GLFWscrollfun PrevUserCallbackScroll;
GLFWkeyfun PrevUserCallbackKey;
GLFWcharfun PrevUserCallbackChar;
GLFWmonitorfun PrevUserCallbackMonitor;
ImGui_ImplGlfw_Data() { memset((void*)this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
// - Because glfwPollEvents() process all windows and some events may be called outside of it, you will need to register your own callbacks
// (passing install_callbacks=false in ImGui_ImplGlfw_InitXXX functions), set the current dear imgui context and then call our callbacks.
// - Otherwise we may need to store a GLFWWindow* -> ImGuiContext* map and handle this in the backend, adding a little bit of extra complexity to it.
// FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplGlfw_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
}
// Functions
static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data)
{
return glfwGetClipboardString((GLFWwindow*)user_data);
}
static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
{
glfwSetClipboardString((GLFWwindow*)user_data, text);
}
static ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int key)
{
switch (key)
{
case GLFW_KEY_TAB: return ImGuiKey_Tab;
case GLFW_KEY_LEFT: return ImGuiKey_LeftArrow;
case GLFW_KEY_RIGHT: return ImGuiKey_RightArrow;
case GLFW_KEY_UP: return ImGuiKey_UpArrow;
case GLFW_KEY_DOWN: return ImGuiKey_DownArrow;
case GLFW_KEY_PAGE_UP: return ImGuiKey_PageUp;
case GLFW_KEY_PAGE_DOWN: return ImGuiKey_PageDown;
case GLFW_KEY_HOME: return ImGuiKey_Home;
case GLFW_KEY_END: return ImGuiKey_End;
case GLFW_KEY_INSERT: return ImGuiKey_Insert;
case GLFW_KEY_DELETE: return ImGuiKey_Delete;
case GLFW_KEY_BACKSPACE: return ImGuiKey_Backspace;
case GLFW_KEY_SPACE: return ImGuiKey_Space;
case GLFW_KEY_ENTER: return ImGuiKey_Enter;
case GLFW_KEY_ESCAPE: return ImGuiKey_Escape;
case GLFW_KEY_APOSTROPHE: return ImGuiKey_Apostrophe;
case GLFW_KEY_COMMA: return ImGuiKey_Comma;
case GLFW_KEY_MINUS: return ImGuiKey_Minus;
case GLFW_KEY_PERIOD: return ImGuiKey_Period;
case GLFW_KEY_SLASH: return ImGuiKey_Slash;
case GLFW_KEY_SEMICOLON: return ImGuiKey_Semicolon;
case GLFW_KEY_EQUAL: return ImGuiKey_Equal;
case GLFW_KEY_LEFT_BRACKET: return ImGuiKey_LeftBracket;
case GLFW_KEY_BACKSLASH: return ImGuiKey_Backslash;
case GLFW_KEY_RIGHT_BRACKET: return ImGuiKey_RightBracket;
case GLFW_KEY_GRAVE_ACCENT: return ImGuiKey_GraveAccent;
case GLFW_KEY_CAPS_LOCK: return ImGuiKey_CapsLock;
case GLFW_KEY_SCROLL_LOCK: return ImGuiKey_ScrollLock;
case GLFW_KEY_NUM_LOCK: return ImGuiKey_NumLock;
case GLFW_KEY_PRINT_SCREEN: return ImGuiKey_PrintScreen;
case GLFW_KEY_PAUSE: return ImGuiKey_Pause;
case GLFW_KEY_KP_0: return ImGuiKey_Keypad0;
case GLFW_KEY_KP_1: return ImGuiKey_Keypad1;
case GLFW_KEY_KP_2: return ImGuiKey_Keypad2;
case GLFW_KEY_KP_3: return ImGuiKey_Keypad3;
case GLFW_KEY_KP_4: return ImGuiKey_Keypad4;
case GLFW_KEY_KP_5: return ImGuiKey_Keypad5;
case GLFW_KEY_KP_6: return ImGuiKey_Keypad6;
case GLFW_KEY_KP_7: return ImGuiKey_Keypad7;
case GLFW_KEY_KP_8: return ImGuiKey_Keypad8;
case GLFW_KEY_KP_9: return ImGuiKey_Keypad9;
case GLFW_KEY_KP_DECIMAL: return ImGuiKey_KeypadDecimal;
case GLFW_KEY_KP_DIVIDE: return ImGuiKey_KeypadDivide;
case GLFW_KEY_KP_MULTIPLY: return ImGuiKey_KeypadMultiply;
case GLFW_KEY_KP_SUBTRACT: return ImGuiKey_KeypadSubtract;
case GLFW_KEY_KP_ADD: return ImGuiKey_KeypadAdd;
case GLFW_KEY_KP_ENTER: return ImGuiKey_KeypadEnter;
case GLFW_KEY_KP_EQUAL: return ImGuiKey_KeypadEqual;
case GLFW_KEY_LEFT_SHIFT: return ImGuiKey_LeftShift;
case GLFW_KEY_LEFT_CONTROL: return ImGuiKey_LeftCtrl;
case GLFW_KEY_LEFT_ALT: return ImGuiKey_LeftAlt;
case GLFW_KEY_LEFT_SUPER: return ImGuiKey_LeftSuper;
case GLFW_KEY_RIGHT_SHIFT: return ImGuiKey_RightShift;
case GLFW_KEY_RIGHT_CONTROL: return ImGuiKey_RightCtrl;
case GLFW_KEY_RIGHT_ALT: return ImGuiKey_RightAlt;
case GLFW_KEY_RIGHT_SUPER: return ImGuiKey_RightSuper;
case GLFW_KEY_MENU: return ImGuiKey_Menu;
case GLFW_KEY_0: return ImGuiKey_0;
case GLFW_KEY_1: return ImGuiKey_1;
case GLFW_KEY_2: return ImGuiKey_2;
case GLFW_KEY_3: return ImGuiKey_3;
case GLFW_KEY_4: return ImGuiKey_4;
case GLFW_KEY_5: return ImGuiKey_5;
case GLFW_KEY_6: return ImGuiKey_6;
case GLFW_KEY_7: return ImGuiKey_7;
case GLFW_KEY_8: return ImGuiKey_8;
case GLFW_KEY_9: return ImGuiKey_9;
case GLFW_KEY_A: return ImGuiKey_A;
case GLFW_KEY_B: return ImGuiKey_B;
case GLFW_KEY_C: return ImGuiKey_C;
case GLFW_KEY_D: return ImGuiKey_D;
case GLFW_KEY_E: return ImGuiKey_E;
case GLFW_KEY_F: return ImGuiKey_F;
case GLFW_KEY_G: return ImGuiKey_G;
case GLFW_KEY_H: return ImGuiKey_H;
case GLFW_KEY_I: return ImGuiKey_I;
case GLFW_KEY_J: return ImGuiKey_J;
case GLFW_KEY_K: return ImGuiKey_K;
case GLFW_KEY_L: return ImGuiKey_L;
case GLFW_KEY_M: return ImGuiKey_M;
case GLFW_KEY_N: return ImGuiKey_N;
case GLFW_KEY_O: return ImGuiKey_O;
case GLFW_KEY_P: return ImGuiKey_P;
case GLFW_KEY_Q: return ImGuiKey_Q;
case GLFW_KEY_R: return ImGuiKey_R;
case GLFW_KEY_S: return ImGuiKey_S;
case GLFW_KEY_T: return ImGuiKey_T;
case GLFW_KEY_U: return ImGuiKey_U;
case GLFW_KEY_V: return ImGuiKey_V;
case GLFW_KEY_W: return ImGuiKey_W;
case GLFW_KEY_X: return ImGuiKey_X;
case GLFW_KEY_Y: return ImGuiKey_Y;
case GLFW_KEY_Z: return ImGuiKey_Z;
case GLFW_KEY_F1: return ImGuiKey_F1;
case GLFW_KEY_F2: return ImGuiKey_F2;
case GLFW_KEY_F3: return ImGuiKey_F3;
case GLFW_KEY_F4: return ImGuiKey_F4;
case GLFW_KEY_F5: return ImGuiKey_F5;
case GLFW_KEY_F6: return ImGuiKey_F6;
case GLFW_KEY_F7: return ImGuiKey_F7;
case GLFW_KEY_F8: return ImGuiKey_F8;
case GLFW_KEY_F9: return ImGuiKey_F9;
case GLFW_KEY_F10: return ImGuiKey_F10;
case GLFW_KEY_F11: return ImGuiKey_F11;
case GLFW_KEY_F12: return ImGuiKey_F12;
default: return ImGuiKey_None;
}
}
// X11 does not include current pressed/released modifier key in 'mods' flags submitted by GLFW
// See https://github.com/ocornut/imgui/issues/6034 and https://github.com/glfw/glfw/issues/1630
static void ImGui_ImplGlfw_UpdateKeyModifiers()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
io.AddKeyEvent(ImGuiMod_Ctrl, (glfwGetKey(bd->Window, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS) || (glfwGetKey(bd->Window, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS));
io.AddKeyEvent(ImGuiMod_Shift, (glfwGetKey(bd->Window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS) || (glfwGetKey(bd->Window, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS));
io.AddKeyEvent(ImGuiMod_Alt, (glfwGetKey(bd->Window, GLFW_KEY_LEFT_ALT) == GLFW_PRESS) || (glfwGetKey(bd->Window, GLFW_KEY_RIGHT_ALT) == GLFW_PRESS));
io.AddKeyEvent(ImGuiMod_Super, (glfwGetKey(bd->Window, GLFW_KEY_LEFT_SUPER) == GLFW_PRESS) || (glfwGetKey(bd->Window, GLFW_KEY_RIGHT_SUPER) == GLFW_PRESS));
}
void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackMousebutton != nullptr && window == bd->Window)
bd->PrevUserCallbackMousebutton(window, button, action, mods);
ImGui_ImplGlfw_UpdateKeyModifiers();
ImGuiIO& io = ImGui::GetIO();
if (button >= 0 && button < ImGuiMouseButton_COUNT)
io.AddMouseButtonEvent(button, action == GLFW_PRESS);
}
void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackScroll != nullptr && window == bd->Window)
bd->PrevUserCallbackScroll(window, xoffset, yoffset);
ImGuiIO& io = ImGui::GetIO();
io.AddMouseWheelEvent((float)xoffset, (float)yoffset);
}
static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
{
#if GLFW_HAS_GETKEYNAME && !defined(__EMSCRIPTEN__)
// GLFW 3.1+ attempts to "untranslate" keys, which goes the opposite of what every other framework does, making using lettered shortcuts difficult.
// (It had reasons to do so: namely GLFW is/was more likely to be used for WASD-type game controls rather than lettered shortcuts, but IHMO the 3.1 change could have been done differently)
// See https://github.com/glfw/glfw/issues/1502 for details.
// Adding a workaround to undo this (so our keys are translated->untranslated->translated, likely a lossy process).
// This won't cover edge cases but this is at least going to cover common cases.
if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_EQUAL)
return key;
GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
const char* key_name = glfwGetKeyName(key, scancode);
glfwSetErrorCallback(prev_error_callback);
#if (GLFW_VERSION_COMBINED >= 3300) // Eat errors (see #5908)
(void)glfwGetError(NULL);
#endif
if (key_name && key_name[0] != 0 && key_name[1] == 0)
{
const char char_names[] = "`-=[]\\,;\'./";
const int char_keys[] = { GLFW_KEY_GRAVE_ACCENT, GLFW_KEY_MINUS, GLFW_KEY_EQUAL, GLFW_KEY_LEFT_BRACKET, GLFW_KEY_RIGHT_BRACKET, GLFW_KEY_BACKSLASH, GLFW_KEY_COMMA, GLFW_KEY_SEMICOLON, GLFW_KEY_APOSTROPHE, GLFW_KEY_PERIOD, GLFW_KEY_SLASH, 0 };
IM_ASSERT(IM_ARRAYSIZE(char_names) == IM_ARRAYSIZE(char_keys));
if (key_name[0] >= '0' && key_name[0] <= '9') { key = GLFW_KEY_0 + (key_name[0] - '0'); }
else if (key_name[0] >= 'A' && key_name[0] <= 'Z') { key = GLFW_KEY_A + (key_name[0] - 'A'); }
else if (key_name[0] >= 'a' && key_name[0] <= 'z') { key = GLFW_KEY_A + (key_name[0] - 'a'); }
else if (const char* p = strchr(char_names, key_name[0])) { key = char_keys[p - char_names]; }
}
// if (action == GLFW_PRESS) printf("key %d scancode %d name '%s'\n", key, scancode, key_name);
#else
IM_UNUSED(scancode);
#endif
return key;
}
void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int keycode, int scancode, int action, int mods)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackKey != nullptr && window == bd->Window)
bd->PrevUserCallbackKey(window, keycode, scancode, action, mods);
if (action != GLFW_PRESS && action != GLFW_RELEASE)
return;
ImGui_ImplGlfw_UpdateKeyModifiers();
keycode = ImGui_ImplGlfw_TranslateUntranslatedKey(keycode, scancode);
ImGuiIO& io = ImGui::GetIO();
ImGuiKey imgui_key = ImGui_ImplGlfw_KeyToImGuiKey(keycode);
io.AddKeyEvent(imgui_key, (action == GLFW_PRESS));
io.SetKeyEventNativeData(imgui_key, keycode, scancode); // To support legacy indexing (<1.87 user code)
}
void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackWindowFocus != nullptr && window == bd->Window)
bd->PrevUserCallbackWindowFocus(window, focused);
ImGuiIO& io = ImGui::GetIO();
io.AddFocusEvent(focused != 0);
}
void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackCursorPos != nullptr && window == bd->Window)
bd->PrevUserCallbackCursorPos(window, x * bd->DpiScale.x, y * bd->DpiScale.y);
if (glfwGetInputMode(window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
return;
ImGuiIO& io = ImGui::GetIO();
io.AddMousePosEvent((float)x * bd->DpiScale.x, (float)y * bd->DpiScale.y);
bd->LastValidMousePos = ImVec2((float)x * bd->DpiScale.x, (float)y * bd->DpiScale.y);
}
// Workaround: X11 seems to send spurious Leave/Enter events which would make us lose our position,
// so we back it up and restore on Leave/Enter (see https://github.com/ocornut/imgui/issues/4984)
void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackCursorEnter != nullptr && window == bd->Window)
bd->PrevUserCallbackCursorEnter(window, entered);
if (glfwGetInputMode(window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
return;
ImGuiIO& io = ImGui::GetIO();
if (entered)
{
bd->MouseWindow = window;
io.AddMousePosEvent(bd->LastValidMousePos.x, bd->LastValidMousePos.y);
}
else if (!entered && bd->MouseWindow == window)
{
bd->LastValidMousePos = io.MousePos;
bd->MouseWindow = nullptr;
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
}
}
void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackChar != nullptr && window == bd->Window)
bd->PrevUserCallbackChar(window, c);
ImGuiIO& io = ImGui::GetIO();
io.AddInputCharacter(c);
}
void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int)
{
// Unused in 'master' branch but 'docking' branch will use this, so we declare it ahead of it so if you have to install callbacks you can install this one too.
}
void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd->InstalledCallbacks == false && "Callbacks already installed!");
IM_ASSERT(bd->Window == window);
bd->PrevUserCallbackWindowFocus = glfwSetWindowFocusCallback(window, ImGui_ImplGlfw_WindowFocusCallback);
bd->PrevUserCallbackCursorEnter = glfwSetCursorEnterCallback(window, ImGui_ImplGlfw_CursorEnterCallback);
bd->PrevUserCallbackCursorPos = glfwSetCursorPosCallback(window, ImGui_ImplGlfw_CursorPosCallback);
bd->PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
bd->PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
bd->PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
bd->PrevUserCallbackChar = glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
bd->PrevUserCallbackMonitor = glfwSetMonitorCallback(ImGui_ImplGlfw_MonitorCallback);
bd->InstalledCallbacks = true;
}
void ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd->InstalledCallbacks == true && "Callbacks not installed!");
IM_ASSERT(bd->Window == window);
glfwSetWindowFocusCallback(window, bd->PrevUserCallbackWindowFocus);
glfwSetCursorEnterCallback(window, bd->PrevUserCallbackCursorEnter);
glfwSetCursorPosCallback(window, bd->PrevUserCallbackCursorPos);
glfwSetMouseButtonCallback(window, bd->PrevUserCallbackMousebutton);
glfwSetScrollCallback(window, bd->PrevUserCallbackScroll);
glfwSetKeyCallback(window, bd->PrevUserCallbackKey);
glfwSetCharCallback(window, bd->PrevUserCallbackChar);
glfwSetMonitorCallback(bd->PrevUserCallbackMonitor);
bd->InstalledCallbacks = false;
bd->PrevUserCallbackWindowFocus = nullptr;
bd->PrevUserCallbackCursorEnter = nullptr;
bd->PrevUserCallbackCursorPos = nullptr;
bd->PrevUserCallbackMousebutton = nullptr;
bd->PrevUserCallbackScroll = nullptr;
bd->PrevUserCallbackKey = nullptr;
bd->PrevUserCallbackChar = nullptr;
bd->PrevUserCallbackMonitor = nullptr;
}
static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
//printf("GLFW_VERSION: %d.%d.%d (%d)", GLFW_VERSION_MAJOR, GLFW_VERSION_MINOR, GLFW_VERSION_REVISION, GLFW_VERSION_COMBINED);
// Setup backend capabilities flags
ImGui_ImplGlfw_Data* bd = IM_NEW(ImGui_ImplGlfw_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = "imgui_impl_glfw";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
bd->Window = window;
bd->Time = 0.0;
bd->DpiScale = ImVec2{ 1.0, 1.0 };
io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
io.ClipboardUserData = bd->Window;
// Set platform dependent data in viewport
#if defined(_WIN32)
ImGui::GetMainViewport()->PlatformHandleRaw = (void*)glfwGetWin32Window(bd->Window);
#endif
// Create mouse cursors
// (By design, on X11 cursors are user configurable and some cursors may be missing. When a cursor doesn't exist,
// GLFW will emit an error which will often be printed by the app, so we temporarily disable error reporting.
// Missing cursors will return nullptr and our _UpdateMouseCursor() function will use the Arrow cursor instead.)
GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
bd->MouseCursors[ImGuiMouseCursor_Arrow] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_TextInput] = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_Hand] = glfwCreateStandardCursor(GLFW_HAND_CURSOR);
#if GLFW_HAS_NEW_CURSORS
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_RESIZE_ALL_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_RESIZE_NESW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_RESIZE_NWSE_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_NOT_ALLOWED_CURSOR);
#else
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
#endif
glfwSetErrorCallback(prev_error_callback);
#if (GLFW_VERSION_COMBINED >= 3300) // Eat errors (see #5785)
(void)glfwGetError(NULL);
#endif
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
if (install_callbacks)
ImGui_ImplGlfw_InstallCallbacks(window);
bd->ClientApi = client_api;
return true;
}
bool ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks)
{
return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_OpenGL);
}
bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks)
{
return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Vulkan);
}
bool ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks)
{
return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Unknown);
}
void ImGui_ImplGlfw_Shutdown()
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
if (bd->InstalledCallbacks)
ImGui_ImplGlfw_RestoreCallbacks(bd->Window);
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
glfwDestroyCursor(bd->MouseCursors[cursor_n]);
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
IM_DELETE(bd);
}
static void ImGui_ImplGlfw_UpdateMouseData()
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
if (glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
{
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
return;
}
#ifdef __EMSCRIPTEN__
const bool is_app_focused = true;
#else
const bool is_app_focused = glfwGetWindowAttrib(bd->Window, GLFW_FOCUSED) != 0;
#endif
if (is_app_focused)
{
// (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
if (io.WantSetMousePos)
glfwSetCursorPos(bd->Window, (double)io.MousePos.x, (double)io.MousePos.y);
// (Optional) Fallback to provide mouse position when focused (ImGui_ImplGlfw_CursorPosCallback already provides this when hovered or captured)
if (is_app_focused && bd->MouseWindow == nullptr)
{
double mouse_x, mouse_y;
glfwGetCursorPos(bd->Window, &mouse_x, &mouse_y);
io.AddMousePosEvent((float)mouse_x * bd->DpiScale.x, (float)mouse_y * bd->DpiScale.y);
bd->LastValidMousePos = ImVec2((float)mouse_x * bd->DpiScale.x, (float)mouse_y * bd->DpiScale.y);
}
}
}
static void ImGui_ImplGlfw_UpdateMouseCursor()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) || glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
return;
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
glfwSetInputMode(bd->Window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
}
else
{
// Show OS mouse cursor
// FIXME-PLATFORM: Unfocused windows seems to fail changing the mouse cursor with GLFW 3.2, but 3.3 works here.
glfwSetCursor(bd->Window, bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow]);
glfwSetInputMode(bd->Window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
}
}
// Update gamepad inputs
static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v > 1.0f ? 1.0f : v; }
static void ImGui_ImplGlfw_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
#if GLFW_HAS_GAMEPAD_API
GLFWgamepadstate gamepad;
if (!glfwGetGamepadState(GLFW_JOYSTICK_1, &gamepad))
return;
#define MAP_BUTTON(KEY_NO, BUTTON_NO, _UNUSED) do { io.AddKeyEvent(KEY_NO, gamepad.buttons[BUTTON_NO] != 0); } while (0)
#define MAP_ANALOG(KEY_NO, AXIS_NO, _UNUSED, V0, V1) do { float v = gamepad.axes[AXIS_NO]; v = (v - V0) / (V1 - V0); io.AddKeyAnalogEvent(KEY_NO, v > 0.10f, Saturate(v)); } while (0)
#else
int axes_count = 0, buttons_count = 0;
const float* axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1, &axes_count);
const unsigned char* buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1, &buttons_count);
if (axes_count == 0 || buttons_count == 0)
return;
#define MAP_BUTTON(KEY_NO, _UNUSED, BUTTON_NO) do { io.AddKeyEvent(KEY_NO, (buttons_count > BUTTON_NO && buttons[BUTTON_NO] == GLFW_PRESS)); } while (0)
#define MAP_ANALOG(KEY_NO, _UNUSED, AXIS_NO, V0, V1) do { float v = (axes_count > AXIS_NO) ? axes[AXIS_NO] : V0; v = (v - V0) / (V1 - V0); io.AddKeyAnalogEvent(KEY_NO, v > 0.10f, Saturate(v)); } while (0)
#endif
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
MAP_BUTTON(ImGuiKey_GamepadStart, GLFW_GAMEPAD_BUTTON_START, 7);
MAP_BUTTON(ImGuiKey_GamepadBack, GLFW_GAMEPAD_BUTTON_BACK, 6);
MAP_BUTTON(ImGuiKey_GamepadFaceDown, GLFW_GAMEPAD_BUTTON_A, 0); // Xbox A, PS Cross
MAP_BUTTON(ImGuiKey_GamepadFaceRight, GLFW_GAMEPAD_BUTTON_B, 1); // Xbox B, PS Circle
MAP_BUTTON(ImGuiKey_GamepadFaceLeft, GLFW_GAMEPAD_BUTTON_X, 2); // Xbox X, PS Square
MAP_BUTTON(ImGuiKey_GamepadFaceUp, GLFW_GAMEPAD_BUTTON_Y, 3); // Xbox Y, PS Triangle
MAP_BUTTON(ImGuiKey_GamepadDpadLeft, GLFW_GAMEPAD_BUTTON_DPAD_LEFT, 13);
MAP_BUTTON(ImGuiKey_GamepadDpadRight, GLFW_GAMEPAD_BUTTON_DPAD_RIGHT, 11);
MAP_BUTTON(ImGuiKey_GamepadDpadUp, GLFW_GAMEPAD_BUTTON_DPAD_UP, 10);
MAP_BUTTON(ImGuiKey_GamepadDpadDown, GLFW_GAMEPAD_BUTTON_DPAD_DOWN, 12);
MAP_BUTTON(ImGuiKey_GamepadL1, GLFW_GAMEPAD_BUTTON_LEFT_BUMPER, 4);
MAP_BUTTON(ImGuiKey_GamepadR1, GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER, 5);
MAP_ANALOG(ImGuiKey_GamepadL2, GLFW_GAMEPAD_AXIS_LEFT_TRIGGER, 4, -0.75f, +1.0f);
MAP_ANALOG(ImGuiKey_GamepadR2, GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER, 5, -0.75f, +1.0f);
MAP_BUTTON(ImGuiKey_GamepadL3, GLFW_GAMEPAD_BUTTON_LEFT_THUMB, 8);
MAP_BUTTON(ImGuiKey_GamepadR3, GLFW_GAMEPAD_BUTTON_RIGHT_THUMB, 9);
MAP_ANALOG(ImGuiKey_GamepadLStickLeft, GLFW_GAMEPAD_AXIS_LEFT_X, 0, -0.25f, -1.0f);
MAP_ANALOG(ImGuiKey_GamepadLStickRight, GLFW_GAMEPAD_AXIS_LEFT_X, 0, +0.25f, +1.0f);
MAP_ANALOG(ImGuiKey_GamepadLStickUp, GLFW_GAMEPAD_AXIS_LEFT_Y, 1, -0.25f, -1.0f);
MAP_ANALOG(ImGuiKey_GamepadLStickDown, GLFW_GAMEPAD_AXIS_LEFT_Y, 1, +0.25f, +1.0f);
MAP_ANALOG(ImGuiKey_GamepadRStickLeft, GLFW_GAMEPAD_AXIS_RIGHT_X, 2, -0.25f, -1.0f);
MAP_ANALOG(ImGuiKey_GamepadRStickRight, GLFW_GAMEPAD_AXIS_RIGHT_X, 2, +0.25f, +1.0f);
MAP_ANALOG(ImGuiKey_GamepadRStickUp, GLFW_GAMEPAD_AXIS_RIGHT_Y, 3, -0.25f, -1.0f);
MAP_ANALOG(ImGuiKey_GamepadRStickDown, GLFW_GAMEPAD_AXIS_RIGHT_Y, 3, +0.25f, +1.0f);
#undef MAP_BUTTON
#undef MAP_ANALOG
}
void ImGui_ImplGlfw_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplGlfw_InitForXXX()?");
// Setup display size (every frame to accommodate for window resizing)
int w, h;
int display_w, display_h;
glfwGetWindowSize(bd->Window, &w, &h);
glfwGetFramebufferSize(bd->Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
if (w > 0 && h > 0)
io.DisplayFramebufferScale = ImVec2((float)display_w / (float)w, (float)display_h / (float)h);
bd->DpiScale.x = ceil(io.DisplayFramebufferScale.x);
bd->DpiScale.y = ceil(io.DisplayFramebufferScale.y);
// Setup time step
double current_time = glfwGetTime();
io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
bd->Time = current_time;
ImGui_ImplGlfw_UpdateMouseData();
ImGui_ImplGlfw_UpdateMouseCursor();
// Update game controllers (if enabled and available)
ImGui_ImplGlfw_UpdateGamepads();
}
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
|
0 | repos/zig_vulkan/deps/zgui/libs/imgui | repos/zig_vulkan/deps/zgui/libs/imgui/backends/imgui_impl_win32.h | // dear imgui: Platform Backend for Windows (standard windows API for 32-bits AND 64-bits applications)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// Implemented features:
// [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
extern "C" { // mziulek
IMGUI_IMPL_API bool ImGui_ImplWin32_Init(void* hwnd);
IMGUI_IMPL_API void ImGui_ImplWin32_Shutdown();
IMGUI_IMPL_API void ImGui_ImplWin32_NewFrame();
// Win32 message handler your application need to call.
// - Intentionally commented out in a '#if 0' block to avoid dragging dependencies on <windows.h> from this helper.
// - You should COPY the line below into your .cpp code to forward declare the function and then you can call it.
// - Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
#if 0
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
#endif
// DPI-related helpers (optional)
// - Use to enable DPI awareness without having to create an application manifest.
// - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
// - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
// but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
// neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
IMGUI_IMPL_API void ImGui_ImplWin32_EnableDpiAwareness();
IMGUI_IMPL_API float ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd); // HWND hwnd
IMGUI_IMPL_API float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); // HMONITOR monitor
// Transparency related helpers (optional) [experimental]
// - Use to enable alpha compositing transparency with the desktop.
// - Use together with e.g. clearing your framebuffer with zero-alpha.
IMGUI_IMPL_API void ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd); // HWND hwnd
}
|
0 | repos/zig_vulkan/deps/zgui/libs/imgui | repos/zig_vulkan/deps/zgui/libs/imgui/backends/imgui_impl_win32.cpp | // dear imgui: Platform Backend for Windows (standard windows API for 32-bits AND 64-bits applications)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// Implemented features:
// [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#include "imgui.h"
#include "imgui_impl_win32.h"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <windowsx.h> // GET_X_LPARAM(), GET_Y_LPARAM()
#include <tchar.h>
#include <dwmapi.h>
// Configuration flags to add in your imconfig.h file:
//#define IMGUI_IMPL_WIN32_DISABLE_GAMEPAD // Disable gamepad support. This was meaningful before <1.81 but we now load XInput dynamically so the option is now less relevant.
// Using XInput for gamepad (will load DLL dynamically)
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
#include <xinput.h>
typedef DWORD (WINAPI *PFN_XInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
#endif
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2022-09-28: Inputs: Convert WM_CHAR values with MultiByteToWideChar() when window class was registered as MBCS (not Unicode).
// 2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
// 2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
// 2021-01-20: Inputs: calling new io.AddKeyAnalogEvent() for gamepad support, instead of writing directly to io.NavInputs[].
// 2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
// 2022-01-17: Inputs: always update key mods next and before a key event (not in NewFrame) to fix input queue with very low framerates.
// 2022-01-12: Inputs: Update mouse inputs using WM_MOUSEMOVE/WM_MOUSELEAVE + fallback to provide it when focused but not hovered/captured. More standard and will allow us to pass it to future input queue API.
// 2022-01-12: Inputs: Maintain our own copy of MouseButtonsDown mask instead of using ImGui::IsAnyMouseDown() which will be obsoleted.
// 2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
// 2021-12-16: Inputs: Fill VK_LCONTROL/VK_RCONTROL/VK_LSHIFT/VK_RSHIFT/VK_LMENU/VK_RMENU for completeness.
// 2021-08-17: Calling io.AddFocusEvent() on WM_SETFOCUS/WM_KILLFOCUS messages.
// 2021-08-02: Inputs: Fixed keyboard modifiers being reported when host window doesn't have focus.
// 2021-07-29: Inputs: MousePos is correctly reported when the host platform window is hovered but not focused (using TrackMouseEvent() to receive WM_MOUSELEAVE events).
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-06-08: Fixed ImGui_ImplWin32_EnableDpiAwareness() and ImGui_ImplWin32_GetDpiScaleForMonitor() to handle Windows 8.1/10 features without a manifest (per-monitor DPI, and properly calls SetProcessDpiAwareness() on 8.1).
// 2021-03-23: Inputs: Clearing keyboard down array when losing focus (WM_KILLFOCUS).
// 2021-02-18: Added ImGui_ImplWin32_EnableAlphaCompositing(). Non Visual Studio users will need to link with dwmapi.lib (MinGW/gcc: use -ldwmapi).
// 2021-02-17: Fixed ImGui_ImplWin32_EnableDpiAwareness() attempting to get SetProcessDpiAwareness from shcore.dll on Windows 8 whereas it is only supported on Windows 8.1.
// 2021-01-25: Inputs: Dynamically loading XInput DLL.
// 2020-12-04: Misc: Fixed setting of io.DisplaySize to invalid/uninitialized data when after hwnd has been closed.
// 2020-03-03: Inputs: Calling AddInputCharacterUTF16() to support surrogate pairs leading to codepoint >= 0x10000 (for more complete CJK inputs)
// 2020-02-17: Added ImGui_ImplWin32_EnableDpiAwareness(), ImGui_ImplWin32_GetDpiScaleForHwnd(), ImGui_ImplWin32_GetDpiScaleForMonitor() helper functions.
// 2020-01-14: Inputs: Added support for #define IMGUI_IMPL_WIN32_DISABLE_GAMEPAD/IMGUI_IMPL_WIN32_DISABLE_LINKING_XINPUT.
// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
// 2019-05-11: Inputs: Don't filter value from WM_CHAR before calling AddInputCharacter().
// 2019-01-17: Misc: Using GetForegroundWindow()+IsChild() instead of GetActiveWindow() to be compatible with windows created in a different thread or parent.
// 2019-01-17: Inputs: Added support for mouse buttons 4 and 5 via WM_XBUTTON* messages.
// 2019-01-15: Inputs: Added support for XInput gamepads (if ImGuiConfigFlags_NavEnableGamepad is set by user application).
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
// 2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
// 2018-06-10: Inputs: Fixed handling of mouse wheel messages to support fine position messages (typically sent by track-pads).
// 2018-06-08: Misc: Extracted imgui_impl_win32.cpp/.h away from the old combined DX9/DX10/DX11/DX12 examples.
// 2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors and ImGuiBackendFlags_HasSetMousePos flags + honor ImGuiConfigFlags_NoMouseCursorChange flag.
// 2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value and WM_SETCURSOR message handling).
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
// 2018-02-06: Inputs: Honoring the io.WantSetMousePos by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set).
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
// 2018-01-08: Inputs: Added mapping for ImGuiKey_Insert.
// 2018-01-05: Inputs: Added WM_LBUTTONDBLCLK double-click handlers for window classes with the CS_DBLCLKS flag.
// 2017-10-23: Inputs: Added WM_SYSKEYDOWN / WM_SYSKEYUP handlers so e.g. the VK_MENU key can be read.
// 2017-10-23: Inputs: Using Win32 ::SetCapture/::GetCapture() to retrieve mouse positions outside the client area when dragging.
// 2016-11-12: Inputs: Only call Win32 ::SetCursor(nullptr) when io.MouseDrawCursor is set.
struct ImGui_ImplWin32_Data
{
HWND hWnd;
HWND MouseHwnd;
bool MouseTracked;
int MouseButtonsDown;
INT64 Time;
INT64 TicksPerSecond;
ImGuiMouseCursor LastMouseCursor;
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
bool HasGamepad;
bool WantUpdateHasGamepad;
HMODULE XInputDLL;
PFN_XInputGetCapabilities XInputGetCapabilities;
PFN_XInputGetState XInputGetState;
#endif
ImGui_ImplWin32_Data() { memset((void*)this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
// FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
static ImGui_ImplWin32_Data* ImGui_ImplWin32_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplWin32_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
}
// Functions
bool ImGui_ImplWin32_Init(void* hwnd)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
INT64 perf_frequency, perf_counter;
if (!::QueryPerformanceFrequency((LARGE_INTEGER*)&perf_frequency))
return false;
if (!::QueryPerformanceCounter((LARGE_INTEGER*)&perf_counter))
return false;
// Setup backend capabilities flags
ImGui_ImplWin32_Data* bd = IM_NEW(ImGui_ImplWin32_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = "imgui_impl_win32";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
bd->hWnd = (HWND)hwnd;
bd->TicksPerSecond = perf_frequency;
bd->Time = perf_counter;
bd->LastMouseCursor = ImGuiMouseCursor_COUNT;
// Set platform dependent data in viewport
ImGui::GetMainViewport()->PlatformHandleRaw = (void*)hwnd;
// Dynamically load XInput library
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
bd->WantUpdateHasGamepad = true;
const char* xinput_dll_names[] =
{
"xinput1_4.dll", // Windows 8+
"xinput1_3.dll", // DirectX SDK
"xinput9_1_0.dll", // Windows Vista, Windows 7
"xinput1_2.dll", // DirectX SDK
"xinput1_1.dll" // DirectX SDK
};
for (int n = 0; n < IM_ARRAYSIZE(xinput_dll_names); n++)
if (HMODULE dll = ::LoadLibraryA(xinput_dll_names[n]))
{
bd->XInputDLL = dll;
bd->XInputGetCapabilities = (PFN_XInputGetCapabilities)::GetProcAddress(dll, "XInputGetCapabilities");
bd->XInputGetState = (PFN_XInputGetState)::GetProcAddress(dll, "XInputGetState");
break;
}
#endif // IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
return true;
}
void ImGui_ImplWin32_Shutdown()
{
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
// Unload XInput library
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
if (bd->XInputDLL)
::FreeLibrary(bd->XInputDLL);
#endif // IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
IM_DELETE(bd);
}
static bool ImGui_ImplWin32_UpdateMouseCursor()
{
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
return false;
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
::SetCursor(nullptr);
}
else
{
// Show OS mouse cursor
LPTSTR win32_cursor = IDC_ARROW;
switch (imgui_cursor)
{
case ImGuiMouseCursor_Arrow: win32_cursor = IDC_ARROW; break;
case ImGuiMouseCursor_TextInput: win32_cursor = IDC_IBEAM; break;
case ImGuiMouseCursor_ResizeAll: win32_cursor = IDC_SIZEALL; break;
case ImGuiMouseCursor_ResizeEW: win32_cursor = IDC_SIZEWE; break;
case ImGuiMouseCursor_ResizeNS: win32_cursor = IDC_SIZENS; break;
case ImGuiMouseCursor_ResizeNESW: win32_cursor = IDC_SIZENESW; break;
case ImGuiMouseCursor_ResizeNWSE: win32_cursor = IDC_SIZENWSE; break;
case ImGuiMouseCursor_Hand: win32_cursor = IDC_HAND; break;
case ImGuiMouseCursor_NotAllowed: win32_cursor = IDC_NO; break;
}
::SetCursor(::LoadCursor(nullptr, win32_cursor));
}
return true;
}
static bool IsVkDown(int vk)
{
return (::GetKeyState(vk) & 0x8000) != 0;
}
static void ImGui_ImplWin32_AddKeyEvent(ImGuiKey key, bool down, int native_keycode, int native_scancode = -1)
{
ImGuiIO& io = ImGui::GetIO();
io.AddKeyEvent(key, down);
io.SetKeyEventNativeData(key, native_keycode, native_scancode); // To support legacy indexing (<1.87 user code)
IM_UNUSED(native_scancode);
}
static void ImGui_ImplWin32_ProcessKeyEventsWorkarounds()
{
// Left & right Shift keys: when both are pressed together, Windows tend to not generate the WM_KEYUP event for the first released one.
if (ImGui::IsKeyDown(ImGuiKey_LeftShift) && !IsVkDown(VK_LSHIFT))
ImGui_ImplWin32_AddKeyEvent(ImGuiKey_LeftShift, false, VK_LSHIFT);
if (ImGui::IsKeyDown(ImGuiKey_RightShift) && !IsVkDown(VK_RSHIFT))
ImGui_ImplWin32_AddKeyEvent(ImGuiKey_RightShift, false, VK_RSHIFT);
// Sometimes WM_KEYUP for Win key is not passed down to the app (e.g. for Win+V on some setups, according to GLFW).
if (ImGui::IsKeyDown(ImGuiKey_LeftSuper) && !IsVkDown(VK_LWIN))
ImGui_ImplWin32_AddKeyEvent(ImGuiKey_LeftSuper, false, VK_LWIN);
if (ImGui::IsKeyDown(ImGuiKey_RightSuper) && !IsVkDown(VK_RWIN))
ImGui_ImplWin32_AddKeyEvent(ImGuiKey_RightSuper, false, VK_RWIN);
}
static void ImGui_ImplWin32_UpdateKeyModifiers()
{
ImGuiIO& io = ImGui::GetIO();
io.AddKeyEvent(ImGuiMod_Ctrl, IsVkDown(VK_CONTROL));
io.AddKeyEvent(ImGuiMod_Shift, IsVkDown(VK_SHIFT));
io.AddKeyEvent(ImGuiMod_Alt, IsVkDown(VK_MENU));
io.AddKeyEvent(ImGuiMod_Super, IsVkDown(VK_APPS));
}
static void ImGui_ImplWin32_UpdateMouseData()
{
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(bd->hWnd != 0);
const bool is_app_focused = (::GetForegroundWindow() == bd->hWnd);
if (is_app_focused)
{
// (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
if (io.WantSetMousePos)
{
POINT pos = { (int)io.MousePos.x, (int)io.MousePos.y };
if (::ClientToScreen(bd->hWnd, &pos))
::SetCursorPos(pos.x, pos.y);
}
// (Optional) Fallback to provide mouse position when focused (WM_MOUSEMOVE already provides this when hovered or captured)
if (!io.WantSetMousePos && !bd->MouseTracked)
{
POINT pos;
if (::GetCursorPos(&pos) && ::ScreenToClient(bd->hWnd, &pos))
io.AddMousePosEvent((float)pos.x, (float)pos.y);
}
}
}
// Gamepad navigation mapping
static void ImGui_ImplWin32_UpdateGamepads()
{
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
//if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
// return;
// Calling XInputGetState() every frame on disconnected gamepads is unfortunately too slow.
// Instead we refresh gamepad availability by calling XInputGetCapabilities() _only_ after receiving WM_DEVICECHANGE.
if (bd->WantUpdateHasGamepad)
{
XINPUT_CAPABILITIES caps = {};
bd->HasGamepad = bd->XInputGetCapabilities ? (bd->XInputGetCapabilities(0, XINPUT_FLAG_GAMEPAD, &caps) == ERROR_SUCCESS) : false;
bd->WantUpdateHasGamepad = false;
}
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
XINPUT_STATE xinput_state;
XINPUT_GAMEPAD& gamepad = xinput_state.Gamepad;
if (!bd->HasGamepad || bd->XInputGetState == nullptr || bd->XInputGetState(0, &xinput_state) != ERROR_SUCCESS)
return;
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
#define IM_SATURATE(V) (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
#define MAP_BUTTON(KEY_NO, BUTTON_ENUM) { io.AddKeyEvent(KEY_NO, (gamepad.wButtons & BUTTON_ENUM) != 0); }
#define MAP_ANALOG(KEY_NO, VALUE, V0, V1) { float vn = (float)(VALUE - V0) / (float)(V1 - V0); io.AddKeyAnalogEvent(KEY_NO, vn > 0.10f, IM_SATURATE(vn)); }
MAP_BUTTON(ImGuiKey_GamepadStart, XINPUT_GAMEPAD_START);
MAP_BUTTON(ImGuiKey_GamepadBack, XINPUT_GAMEPAD_BACK);
MAP_BUTTON(ImGuiKey_GamepadFaceLeft, XINPUT_GAMEPAD_X);
MAP_BUTTON(ImGuiKey_GamepadFaceRight, XINPUT_GAMEPAD_B);
MAP_BUTTON(ImGuiKey_GamepadFaceUp, XINPUT_GAMEPAD_Y);
MAP_BUTTON(ImGuiKey_GamepadFaceDown, XINPUT_GAMEPAD_A);
MAP_BUTTON(ImGuiKey_GamepadDpadLeft, XINPUT_GAMEPAD_DPAD_LEFT);
MAP_BUTTON(ImGuiKey_GamepadDpadRight, XINPUT_GAMEPAD_DPAD_RIGHT);
MAP_BUTTON(ImGuiKey_GamepadDpadUp, XINPUT_GAMEPAD_DPAD_UP);
MAP_BUTTON(ImGuiKey_GamepadDpadDown, XINPUT_GAMEPAD_DPAD_DOWN);
MAP_BUTTON(ImGuiKey_GamepadL1, XINPUT_GAMEPAD_LEFT_SHOULDER);
MAP_BUTTON(ImGuiKey_GamepadR1, XINPUT_GAMEPAD_RIGHT_SHOULDER);
MAP_ANALOG(ImGuiKey_GamepadL2, gamepad.bLeftTrigger, XINPUT_GAMEPAD_TRIGGER_THRESHOLD, 255);
MAP_ANALOG(ImGuiKey_GamepadR2, gamepad.bRightTrigger, XINPUT_GAMEPAD_TRIGGER_THRESHOLD, 255);
MAP_BUTTON(ImGuiKey_GamepadL3, XINPUT_GAMEPAD_LEFT_THUMB);
MAP_BUTTON(ImGuiKey_GamepadR3, XINPUT_GAMEPAD_RIGHT_THUMB);
MAP_ANALOG(ImGuiKey_GamepadLStickLeft, gamepad.sThumbLX, -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickRight, gamepad.sThumbLX, +XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, +32767);
MAP_ANALOG(ImGuiKey_GamepadLStickUp, gamepad.sThumbLY, +XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, +32767);
MAP_ANALOG(ImGuiKey_GamepadLStickDown, gamepad.sThumbLY, -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickLeft, gamepad.sThumbRX, -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickRight, gamepad.sThumbRX, +XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickUp, gamepad.sThumbRY, +XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickDown, gamepad.sThumbRY, -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, -32768);
#undef MAP_BUTTON
#undef MAP_ANALOG
#endif // #ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
}
void ImGui_ImplWin32_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplWin32_Init()?");
// Setup display size (every frame to accommodate for window resizing)
RECT rect = { 0, 0, 0, 0 };
::GetClientRect(bd->hWnd, &rect);
io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top));
// Setup time step
INT64 current_time = 0;
::QueryPerformanceCounter((LARGE_INTEGER*)¤t_time);
io.DeltaTime = (float)(current_time - bd->Time) / bd->TicksPerSecond;
bd->Time = current_time;
// Update OS mouse position
ImGui_ImplWin32_UpdateMouseData();
// Process workarounds for known Windows key handling issues
ImGui_ImplWin32_ProcessKeyEventsWorkarounds();
// Update OS mouse cursor with the cursor requested by imgui
ImGuiMouseCursor mouse_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor();
if (bd->LastMouseCursor != mouse_cursor)
{
bd->LastMouseCursor = mouse_cursor;
ImGui_ImplWin32_UpdateMouseCursor();
}
// Update game controllers (if enabled and available)
ImGui_ImplWin32_UpdateGamepads();
}
// There is no distinct VK_xxx for keypad enter, instead it is VK_RETURN + KF_EXTENDED, we assign it an arbitrary value to make code more readable (VK_ codes go up to 255)
#define IM_VK_KEYPAD_ENTER (VK_RETURN + 256)
// Map VK_xxx to ImGuiKey_xxx.
static ImGuiKey ImGui_ImplWin32_VirtualKeyToImGuiKey(WPARAM wParam)
{
switch (wParam)
{
case VK_TAB: return ImGuiKey_Tab;
case VK_LEFT: return ImGuiKey_LeftArrow;
case VK_RIGHT: return ImGuiKey_RightArrow;
case VK_UP: return ImGuiKey_UpArrow;
case VK_DOWN: return ImGuiKey_DownArrow;
case VK_PRIOR: return ImGuiKey_PageUp;
case VK_NEXT: return ImGuiKey_PageDown;
case VK_HOME: return ImGuiKey_Home;
case VK_END: return ImGuiKey_End;
case VK_INSERT: return ImGuiKey_Insert;
case VK_DELETE: return ImGuiKey_Delete;
case VK_BACK: return ImGuiKey_Backspace;
case VK_SPACE: return ImGuiKey_Space;
case VK_RETURN: return ImGuiKey_Enter;
case VK_ESCAPE: return ImGuiKey_Escape;
case VK_OEM_7: return ImGuiKey_Apostrophe;
case VK_OEM_COMMA: return ImGuiKey_Comma;
case VK_OEM_MINUS: return ImGuiKey_Minus;
case VK_OEM_PERIOD: return ImGuiKey_Period;
case VK_OEM_2: return ImGuiKey_Slash;
case VK_OEM_1: return ImGuiKey_Semicolon;
case VK_OEM_PLUS: return ImGuiKey_Equal;
case VK_OEM_4: return ImGuiKey_LeftBracket;
case VK_OEM_5: return ImGuiKey_Backslash;
case VK_OEM_6: return ImGuiKey_RightBracket;
case VK_OEM_3: return ImGuiKey_GraveAccent;
case VK_CAPITAL: return ImGuiKey_CapsLock;
case VK_SCROLL: return ImGuiKey_ScrollLock;
case VK_NUMLOCK: return ImGuiKey_NumLock;
case VK_SNAPSHOT: return ImGuiKey_PrintScreen;
case VK_PAUSE: return ImGuiKey_Pause;
case VK_NUMPAD0: return ImGuiKey_Keypad0;
case VK_NUMPAD1: return ImGuiKey_Keypad1;
case VK_NUMPAD2: return ImGuiKey_Keypad2;
case VK_NUMPAD3: return ImGuiKey_Keypad3;
case VK_NUMPAD4: return ImGuiKey_Keypad4;
case VK_NUMPAD5: return ImGuiKey_Keypad5;
case VK_NUMPAD6: return ImGuiKey_Keypad6;
case VK_NUMPAD7: return ImGuiKey_Keypad7;
case VK_NUMPAD8: return ImGuiKey_Keypad8;
case VK_NUMPAD9: return ImGuiKey_Keypad9;
case VK_DECIMAL: return ImGuiKey_KeypadDecimal;
case VK_DIVIDE: return ImGuiKey_KeypadDivide;
case VK_MULTIPLY: return ImGuiKey_KeypadMultiply;
case VK_SUBTRACT: return ImGuiKey_KeypadSubtract;
case VK_ADD: return ImGuiKey_KeypadAdd;
case IM_VK_KEYPAD_ENTER: return ImGuiKey_KeypadEnter;
case VK_LSHIFT: return ImGuiKey_LeftShift;
case VK_LCONTROL: return ImGuiKey_LeftCtrl;
case VK_LMENU: return ImGuiKey_LeftAlt;
case VK_LWIN: return ImGuiKey_LeftSuper;
case VK_RSHIFT: return ImGuiKey_RightShift;
case VK_RCONTROL: return ImGuiKey_RightCtrl;
case VK_RMENU: return ImGuiKey_RightAlt;
case VK_RWIN: return ImGuiKey_RightSuper;
case VK_APPS: return ImGuiKey_Menu;
case '0': return ImGuiKey_0;
case '1': return ImGuiKey_1;
case '2': return ImGuiKey_2;
case '3': return ImGuiKey_3;
case '4': return ImGuiKey_4;
case '5': return ImGuiKey_5;
case '6': return ImGuiKey_6;
case '7': return ImGuiKey_7;
case '8': return ImGuiKey_8;
case '9': return ImGuiKey_9;
case 'A': return ImGuiKey_A;
case 'B': return ImGuiKey_B;
case 'C': return ImGuiKey_C;
case 'D': return ImGuiKey_D;
case 'E': return ImGuiKey_E;
case 'F': return ImGuiKey_F;
case 'G': return ImGuiKey_G;
case 'H': return ImGuiKey_H;
case 'I': return ImGuiKey_I;
case 'J': return ImGuiKey_J;
case 'K': return ImGuiKey_K;
case 'L': return ImGuiKey_L;
case 'M': return ImGuiKey_M;
case 'N': return ImGuiKey_N;
case 'O': return ImGuiKey_O;
case 'P': return ImGuiKey_P;
case 'Q': return ImGuiKey_Q;
case 'R': return ImGuiKey_R;
case 'S': return ImGuiKey_S;
case 'T': return ImGuiKey_T;
case 'U': return ImGuiKey_U;
case 'V': return ImGuiKey_V;
case 'W': return ImGuiKey_W;
case 'X': return ImGuiKey_X;
case 'Y': return ImGuiKey_Y;
case 'Z': return ImGuiKey_Z;
case VK_F1: return ImGuiKey_F1;
case VK_F2: return ImGuiKey_F2;
case VK_F3: return ImGuiKey_F3;
case VK_F4: return ImGuiKey_F4;
case VK_F5: return ImGuiKey_F5;
case VK_F6: return ImGuiKey_F6;
case VK_F7: return ImGuiKey_F7;
case VK_F8: return ImGuiKey_F8;
case VK_F9: return ImGuiKey_F9;
case VK_F10: return ImGuiKey_F10;
case VK_F11: return ImGuiKey_F11;
case VK_F12: return ImGuiKey_F12;
default: return ImGuiKey_None;
}
}
// Allow compilation with old Windows SDK. MinGW doesn't have default _WIN32_WINNT/WINVER versions.
#ifndef WM_MOUSEHWHEEL
#define WM_MOUSEHWHEEL 0x020E
#endif
#ifndef DBT_DEVNODES_CHANGED
#define DBT_DEVNODES_CHANGED 0x0007
#endif
// Win32 message handler (process Win32 mouse/keyboard inputs, etc.)
// Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
// When implementing your own backend, you can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if Dear ImGui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
// Generally you may always pass all inputs to Dear ImGui, and hide them from your application based on those two flags.
// PS: In this Win32 handler, we use the capture API (GetCapture/SetCapture/ReleaseCapture) to be able to read mouse coordinates when dragging mouse outside of our window bounds.
// PS: We treat DBLCLK messages as regular mouse down messages, so this code will work on windows classes that have the CS_DBLCLKS flag set. Our own example app code doesn't set this flag.
#if 0
// Copy this line into your .cpp file to forward declare the function.
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
#endif
IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (ImGui::GetCurrentContext() == nullptr)
return 0;
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
switch (msg)
{
case WM_MOUSEMOVE:
// We need to call TrackMouseEvent in order to receive WM_MOUSELEAVE events
bd->MouseHwnd = hwnd;
if (!bd->MouseTracked)
{
TRACKMOUSEEVENT tme = { sizeof(tme), TME_LEAVE, hwnd, 0 };
::TrackMouseEvent(&tme);
bd->MouseTracked = true;
}
io.AddMousePosEvent((float)GET_X_LPARAM(lParam), (float)GET_Y_LPARAM(lParam));
break;
case WM_MOUSELEAVE:
if (bd->MouseHwnd == hwnd)
bd->MouseHwnd = nullptr;
bd->MouseTracked = false;
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
break;
case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK:
case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK:
case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK:
case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK:
{
int button = 0;
if (msg == WM_LBUTTONDOWN || msg == WM_LBUTTONDBLCLK) { button = 0; }
if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONDBLCLK) { button = 1; }
if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONDBLCLK) { button = 2; }
if (msg == WM_XBUTTONDOWN || msg == WM_XBUTTONDBLCLK) { button = (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) ? 3 : 4; }
if (bd->MouseButtonsDown == 0 && ::GetCapture() == nullptr)
::SetCapture(hwnd);
bd->MouseButtonsDown |= 1 << button;
io.AddMouseButtonEvent(button, true);
return 0;
}
case WM_LBUTTONUP:
case WM_RBUTTONUP:
case WM_MBUTTONUP:
case WM_XBUTTONUP:
{
int button = 0;
if (msg == WM_LBUTTONUP) { button = 0; }
if (msg == WM_RBUTTONUP) { button = 1; }
if (msg == WM_MBUTTONUP) { button = 2; }
if (msg == WM_XBUTTONUP) { button = (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) ? 3 : 4; }
bd->MouseButtonsDown &= ~(1 << button);
if (bd->MouseButtonsDown == 0 && ::GetCapture() == hwnd)
::ReleaseCapture();
io.AddMouseButtonEvent(button, false);
return 0;
}
case WM_MOUSEWHEEL:
io.AddMouseWheelEvent(0.0f, (float)GET_WHEEL_DELTA_WPARAM(wParam) / (float)WHEEL_DELTA);
return 0;
case WM_MOUSEHWHEEL:
io.AddMouseWheelEvent((float)GET_WHEEL_DELTA_WPARAM(wParam) / (float)WHEEL_DELTA, 0.0f);
return 0;
case WM_KEYDOWN:
case WM_KEYUP:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
{
const bool is_key_down = (msg == WM_KEYDOWN || msg == WM_SYSKEYDOWN);
if (wParam < 256)
{
// Submit modifiers
ImGui_ImplWin32_UpdateKeyModifiers();
// Obtain virtual key code
// (keypad enter doesn't have its own... VK_RETURN with KF_EXTENDED flag means keypad enter, see IM_VK_KEYPAD_ENTER definition for details, it is mapped to ImGuiKey_KeyPadEnter.)
int vk = (int)wParam;
if ((wParam == VK_RETURN) && (HIWORD(lParam) & KF_EXTENDED))
vk = IM_VK_KEYPAD_ENTER;
// Submit key event
const ImGuiKey key = ImGui_ImplWin32_VirtualKeyToImGuiKey(vk);
const int scancode = (int)LOBYTE(HIWORD(lParam));
if (key != ImGuiKey_None)
ImGui_ImplWin32_AddKeyEvent(key, is_key_down, vk, scancode);
// Submit individual left/right modifier events
if (vk == VK_SHIFT)
{
// Important: Shift keys tend to get stuck when pressed together, missing key-up events are corrected in ImGui_ImplWin32_ProcessKeyEventsWorkarounds()
if (IsVkDown(VK_LSHIFT) == is_key_down) { ImGui_ImplWin32_AddKeyEvent(ImGuiKey_LeftShift, is_key_down, VK_LSHIFT, scancode); }
if (IsVkDown(VK_RSHIFT) == is_key_down) { ImGui_ImplWin32_AddKeyEvent(ImGuiKey_RightShift, is_key_down, VK_RSHIFT, scancode); }
}
else if (vk == VK_CONTROL)
{
if (IsVkDown(VK_LCONTROL) == is_key_down) { ImGui_ImplWin32_AddKeyEvent(ImGuiKey_LeftCtrl, is_key_down, VK_LCONTROL, scancode); }
if (IsVkDown(VK_RCONTROL) == is_key_down) { ImGui_ImplWin32_AddKeyEvent(ImGuiKey_RightCtrl, is_key_down, VK_RCONTROL, scancode); }
}
else if (vk == VK_MENU)
{
if (IsVkDown(VK_LMENU) == is_key_down) { ImGui_ImplWin32_AddKeyEvent(ImGuiKey_LeftAlt, is_key_down, VK_LMENU, scancode); }
if (IsVkDown(VK_RMENU) == is_key_down) { ImGui_ImplWin32_AddKeyEvent(ImGuiKey_RightAlt, is_key_down, VK_RMENU, scancode); }
}
}
return 0;
}
case WM_SETFOCUS:
case WM_KILLFOCUS:
io.AddFocusEvent(msg == WM_SETFOCUS);
return 0;
case WM_CHAR:
if (::IsWindowUnicode(hwnd))
{
// You can also use ToAscii()+GetKeyboardState() to retrieve characters.
if (wParam > 0 && wParam < 0x10000)
io.AddInputCharacterUTF16((unsigned short)wParam);
}
else
{
wchar_t wch = 0;
::MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, (char*)&wParam, 1, &wch, 1);
io.AddInputCharacter(wch);
}
return 0;
case WM_SETCURSOR:
// This is required to restore cursor when transitioning from e.g resize borders to client area.
if (LOWORD(lParam) == HTCLIENT && ImGui_ImplWin32_UpdateMouseCursor())
return 1;
return 0;
case WM_DEVICECHANGE:
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
if ((UINT)wParam == DBT_DEVNODES_CHANGED)
bd->WantUpdateHasGamepad = true;
#endif
return 0;
}
return 0;
}
//--------------------------------------------------------------------------------------------------------
// DPI-related helpers (optional)
//--------------------------------------------------------------------------------------------------------
// - Use to enable DPI awareness without having to create an application manifest.
// - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
// - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
// but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
// neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
//---------------------------------------------------------------------------------------------------------
// This is the scheme successfully used by GLFW (from which we borrowed some of the code) and other apps aiming to be highly portable.
// ImGui_ImplWin32_EnableDpiAwareness() is just a helper called by main.cpp, we don't call it automatically.
// If you are trying to implement your own backend for your own engine, you may ignore that noise.
//---------------------------------------------------------------------------------------------------------
// Perform our own check with RtlVerifyVersionInfo() instead of using functions from <VersionHelpers.h> as they
// require a manifest to be functional for checks above 8.1. See https://github.com/ocornut/imgui/issues/4200
static BOOL _IsWindowsVersionOrGreater(WORD major, WORD minor, WORD)
{
typedef LONG(WINAPI* PFN_RtlVerifyVersionInfo)(OSVERSIONINFOEXW*, ULONG, ULONGLONG);
static PFN_RtlVerifyVersionInfo RtlVerifyVersionInfoFn = nullptr;
if (RtlVerifyVersionInfoFn == nullptr)
if (HMODULE ntdllModule = ::GetModuleHandleA("ntdll.dll"))
RtlVerifyVersionInfoFn = (PFN_RtlVerifyVersionInfo)GetProcAddress(ntdllModule, "RtlVerifyVersionInfo");
if (RtlVerifyVersionInfoFn == nullptr)
return FALSE;
RTL_OSVERSIONINFOEXW versionInfo = { };
ULONGLONG conditionMask = 0;
versionInfo.dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
versionInfo.dwMajorVersion = major;
versionInfo.dwMinorVersion = minor;
VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
return (RtlVerifyVersionInfoFn(&versionInfo, VER_MAJORVERSION | VER_MINORVERSION, conditionMask) == 0) ? TRUE : FALSE;
}
#define _IsWindowsVistaOrGreater() _IsWindowsVersionOrGreater(HIBYTE(0x0600), LOBYTE(0x0600), 0) // _WIN32_WINNT_VISTA
#define _IsWindows8OrGreater() _IsWindowsVersionOrGreater(HIBYTE(0x0602), LOBYTE(0x0602), 0) // _WIN32_WINNT_WIN8
#define _IsWindows8Point1OrGreater() _IsWindowsVersionOrGreater(HIBYTE(0x0603), LOBYTE(0x0603), 0) // _WIN32_WINNT_WINBLUE
#define _IsWindows10OrGreater() _IsWindowsVersionOrGreater(HIBYTE(0x0A00), LOBYTE(0x0A00), 0) // _WIN32_WINNT_WINTHRESHOLD / _WIN32_WINNT_WIN10
#ifndef DPI_ENUMS_DECLARED
typedef enum { PROCESS_DPI_UNAWARE = 0, PROCESS_SYSTEM_DPI_AWARE = 1, PROCESS_PER_MONITOR_DPI_AWARE = 2 } PROCESS_DPI_AWARENESS;
typedef enum { MDT_EFFECTIVE_DPI = 0, MDT_ANGULAR_DPI = 1, MDT_RAW_DPI = 2, MDT_DEFAULT = MDT_EFFECTIVE_DPI } MONITOR_DPI_TYPE;
#endif
#ifndef _DPI_AWARENESS_CONTEXTS_
DECLARE_HANDLE(DPI_AWARENESS_CONTEXT);
#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE (DPI_AWARENESS_CONTEXT)-3
#endif
#ifndef DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2
#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 (DPI_AWARENESS_CONTEXT)-4
#endif
typedef HRESULT(WINAPI* PFN_SetProcessDpiAwareness)(PROCESS_DPI_AWARENESS); // Shcore.lib + dll, Windows 8.1+
typedef HRESULT(WINAPI* PFN_GetDpiForMonitor)(HMONITOR, MONITOR_DPI_TYPE, UINT*, UINT*); // Shcore.lib + dll, Windows 8.1+
typedef DPI_AWARENESS_CONTEXT(WINAPI* PFN_SetThreadDpiAwarenessContext)(DPI_AWARENESS_CONTEXT); // User32.lib + dll, Windows 10 v1607+ (Creators Update)
// Helper function to enable DPI awareness without setting up a manifest
void ImGui_ImplWin32_EnableDpiAwareness()
{
if (_IsWindows10OrGreater())
{
static HINSTANCE user32_dll = ::LoadLibraryA("user32.dll"); // Reference counted per-process
if (PFN_SetThreadDpiAwarenessContext SetThreadDpiAwarenessContextFn = (PFN_SetThreadDpiAwarenessContext)::GetProcAddress(user32_dll, "SetThreadDpiAwarenessContext"))
{
SetThreadDpiAwarenessContextFn(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
return;
}
}
if (_IsWindows8Point1OrGreater())
{
static HINSTANCE shcore_dll = ::LoadLibraryA("shcore.dll"); // Reference counted per-process
if (PFN_SetProcessDpiAwareness SetProcessDpiAwarenessFn = (PFN_SetProcessDpiAwareness)::GetProcAddress(shcore_dll, "SetProcessDpiAwareness"))
{
SetProcessDpiAwarenessFn(PROCESS_PER_MONITOR_DPI_AWARE);
return;
}
}
#if _WIN32_WINNT >= 0x0600
::SetProcessDPIAware();
#endif
}
#if defined(_MSC_VER) && !defined(NOGDI)
#pragma comment(lib, "gdi32") // Link with gdi32.lib for GetDeviceCaps(). MinGW will require linking with '-lgdi32'
#endif
float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor)
{
UINT xdpi = 96, ydpi = 96;
if (_IsWindows8Point1OrGreater())
{
static HINSTANCE shcore_dll = ::LoadLibraryA("shcore.dll"); // Reference counted per-process
static PFN_GetDpiForMonitor GetDpiForMonitorFn = nullptr;
if (GetDpiForMonitorFn == nullptr && shcore_dll != nullptr)
GetDpiForMonitorFn = (PFN_GetDpiForMonitor)::GetProcAddress(shcore_dll, "GetDpiForMonitor");
if (GetDpiForMonitorFn != nullptr)
{
GetDpiForMonitorFn((HMONITOR)monitor, MDT_EFFECTIVE_DPI, &xdpi, &ydpi);
IM_ASSERT(xdpi == ydpi); // Please contact me if you hit this assert!
return xdpi / 96.0f;
}
}
#ifndef NOGDI
const HDC dc = ::GetDC(nullptr);
xdpi = ::GetDeviceCaps(dc, LOGPIXELSX);
ydpi = ::GetDeviceCaps(dc, LOGPIXELSY);
IM_ASSERT(xdpi == ydpi); // Please contact me if you hit this assert!
::ReleaseDC(nullptr, dc);
#endif
return xdpi / 96.0f;
}
float ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd)
{
HMONITOR monitor = ::MonitorFromWindow((HWND)hwnd, MONITOR_DEFAULTTONEAREST);
return ImGui_ImplWin32_GetDpiScaleForMonitor(monitor);
}
//---------------------------------------------------------------------------------------------------------
// Transparency related helpers (optional)
//--------------------------------------------------------------------------------------------------------
#if defined(_MSC_VER)
#pragma comment(lib, "dwmapi") // Link with dwmapi.lib. MinGW will require linking with '-ldwmapi'
#endif
// [experimental]
// Borrowed from GLFW's function updateFramebufferTransparency() in src/win32_window.c
// (the Dwm* functions are Vista era functions but we are borrowing logic from GLFW)
void ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd)
{
if (!_IsWindowsVistaOrGreater())
return;
BOOL composition;
if (FAILED(::DwmIsCompositionEnabled(&composition)) || !composition)
return;
BOOL opaque;
DWORD color;
if (_IsWindows8OrGreater() || (SUCCEEDED(::DwmGetColorizationColor(&color, &opaque)) && !opaque))
{
HRGN region = ::CreateRectRgn(0, 0, -1, -1);
DWM_BLURBEHIND bb = {};
bb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
bb.hRgnBlur = region;
bb.fEnable = TRUE;
::DwmEnableBlurBehindWindow((HWND)hwnd, &bb);
::DeleteObject(region);
}
else
{
DWM_BLURBEHIND bb = {};
bb.dwFlags = DWM_BB_ENABLE;
::DwmEnableBlurBehindWindow((HWND)hwnd, &bb);
}
}
//---------------------------------------------------------------------------------------------------------
|
0 | repos/zig_vulkan/deps/zgui/libs/imgui | repos/zig_vulkan/deps/zgui/libs/imgui/backends/imgui_impl_wgpu.cpp | // dear imgui: Renderer for WebGPU
// This needs to be used along with a Platform Binding (e.g. GLFW)
// (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
// Implemented features:
// [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2022-10-11: Using 'nullptr' instead of 'nullptr' as per our switch to C++11.
// 2021-11-29: Passing explicit buffer sizes to wgpuRenderPassEncoderSetVertexBuffer()/wgpuRenderPassEncoderSetIndexBuffer().
// 2021-08-24: Fix for latest specs.
// 2021-05-24: Add support for draw_data->FramebufferScale.
// 2021-05-19: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-05-16: Update to latest WebGPU specs (compatible with Emscripten 2.0.20 and Chrome Canary 92).
// 2021-02-18: Change blending equation to preserve alpha in output buffer.
// 2021-01-28: Initial version.
#include "imgui.h"
#include <limits.h>
#include <webgpu/webgpu.h>
#define HAS_EMSCRIPTEN_VERSION(major, minor, tiny) (__EMSCRIPTEN_major__ > (major) || (__EMSCRIPTEN_major__ == (major) && __EMSCRIPTEN_minor__ > (minor)) || (__EMSCRIPTEN_major__ == (major) && __EMSCRIPTEN_minor__ == (minor) && __EMSCRIPTEN_tiny__ >= (tiny)))
#if defined(__EMSCRIPTEN__) && !HAS_EMSCRIPTEN_VERSION(2, 0, 20)
#error "Requires at least emscripten 2.0.20"
#endif
// Dear ImGui prototypes from imgui_internal.h
extern ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed = 0);
// mziulek: We removed header file and declare all our external functions here.
extern "C" {
struct Config
{
unsigned int pipeline_multisample_count;
unsigned int texture_filter_mode;
};
bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format, const Config* config);
void ImGui_ImplWGPU_Shutdown(void);
void ImGui_ImplWGPU_NewFrame(void);
void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder);
// Use if you want to reset your rendering device without losing Dear ImGui state.
void ImGui_ImplWGPU_InvalidateDeviceObjects(void);
bool ImGui_ImplWGPU_CreateDeviceObjects(void);
} // extern "C"
// WebGPU data
static WGPUDevice g_wgpuDevice = nullptr;
static WGPUQueue g_defaultQueue = nullptr;
static WGPUTextureFormat g_renderTargetFormat = WGPUTextureFormat_Undefined;
static WGPURenderPipeline g_pipelineState = nullptr;
struct RenderResources
{
WGPUTexture FontTexture; // Font texture
WGPUTextureView FontTextureView; // Texture view for font texture
WGPUSampler Sampler; // Sampler for the font texture
WGPUBuffer Uniforms; // Shader uniforms
WGPUBindGroup CommonBindGroup; // Resources bind-group to bind the common resources to pipeline
ImGuiStorage ImageBindGroups; // Resources bind-group to bind the font/image resources to pipeline (this is a key->value map)
WGPUBindGroup ImageBindGroup; // Default font-resource of Dear ImGui
WGPUBindGroupLayout ImageBindGroupLayout; // Cache layout used for the image bind group. Avoids allocating unnecessary JS objects when working with WebASM
};
static RenderResources g_resources;
struct FrameResources
{
WGPUBuffer IndexBuffer;
WGPUBuffer VertexBuffer;
ImDrawIdx* IndexBufferHost;
ImDrawVert* VertexBufferHost;
int IndexBufferSize;
int VertexBufferSize;
};
static FrameResources* g_pFrameResources = nullptr;
static unsigned int g_numFramesInFlight = 0;
static unsigned int g_frameIndex = UINT_MAX;
struct Uniforms
{
float MVP[4][4];
};
static Config g_config;
//-----------------------------------------------------------------------------
// SHADERS
//-----------------------------------------------------------------------------
// glsl_shader.vert, compiled with:
// # glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert
/*
#version 450 core
layout(location = 0) in vec2 aPos;
layout(location = 1) in vec2 aUV;
layout(location = 2) in vec4 aColor;
layout(set=0, binding = 0) uniform transform { mat4 mvp; };
out gl_PerVertex { vec4 gl_Position; };
layout(location = 0) out struct { vec4 Color; vec2 UV; } Out;
void main()
{
Out.Color = aColor;
Out.UV = aUV;
gl_Position = mvp * vec4(aPos, 0, 1);
}
*/
static uint32_t __glsl_shader_vert_spv[] =
{
0x07230203,0x00010000,0x00080007,0x0000002c,0x00000000,0x00020011,0x00000001,0x0006000b,
0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
0x000a000f,0x00000000,0x00000004,0x6e69616d,0x00000000,0x0000000b,0x0000000f,0x00000015,
0x0000001b,0x00000023,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
0x00000000,0x00030005,0x00000009,0x00000000,0x00050006,0x00000009,0x00000000,0x6f6c6f43,
0x00000072,0x00040006,0x00000009,0x00000001,0x00005655,0x00030005,0x0000000b,0x0074754f,
0x00040005,0x0000000f,0x6c6f4361,0x0000726f,0x00030005,0x00000015,0x00565561,0x00060005,
0x00000019,0x505f6c67,0x65567265,0x78657472,0x00000000,0x00060006,0x00000019,0x00000000,
0x505f6c67,0x7469736f,0x006e6f69,0x00030005,0x0000001b,0x00000000,0x00050005,0x0000001d,
0x6e617274,0x726f6673,0x0000006d,0x00040006,0x0000001d,0x00000000,0x0070766d,0x00030005,
0x0000001f,0x00000000,0x00040005,0x00000023,0x736f5061,0x00000000,0x00040047,0x0000000b,
0x0000001e,0x00000000,0x00040047,0x0000000f,0x0000001e,0x00000002,0x00040047,0x00000015,
0x0000001e,0x00000001,0x00050048,0x00000019,0x00000000,0x0000000b,0x00000000,0x00030047,
0x00000019,0x00000002,0x00040048,0x0000001d,0x00000000,0x00000005,0x00050048,0x0000001d,
0x00000000,0x00000023,0x00000000,0x00050048,0x0000001d,0x00000000,0x00000007,0x00000010,
0x00030047,0x0000001d,0x00000002,0x00040047,0x0000001f,0x00000022,0x00000000,0x00040047,
0x0000001f,0x00000021,0x00000000,0x00040047,0x00000023,0x0000001e,0x00000000,0x00020013,
0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,0x00000020,0x00040017,
0x00000007,0x00000006,0x00000004,0x00040017,0x00000008,0x00000006,0x00000002,0x0004001e,
0x00000009,0x00000007,0x00000008,0x00040020,0x0000000a,0x00000003,0x00000009,0x0004003b,
0x0000000a,0x0000000b,0x00000003,0x00040015,0x0000000c,0x00000020,0x00000001,0x0004002b,
0x0000000c,0x0000000d,0x00000000,0x00040020,0x0000000e,0x00000001,0x00000007,0x0004003b,
0x0000000e,0x0000000f,0x00000001,0x00040020,0x00000011,0x00000003,0x00000007,0x0004002b,
0x0000000c,0x00000013,0x00000001,0x00040020,0x00000014,0x00000001,0x00000008,0x0004003b,
0x00000014,0x00000015,0x00000001,0x00040020,0x00000017,0x00000003,0x00000008,0x0003001e,
0x00000019,0x00000007,0x00040020,0x0000001a,0x00000003,0x00000019,0x0004003b,0x0000001a,
0x0000001b,0x00000003,0x00040018,0x0000001c,0x00000007,0x00000004,0x0003001e,0x0000001d,
0x0000001c,0x00040020,0x0000001e,0x00000002,0x0000001d,0x0004003b,0x0000001e,0x0000001f,
0x00000002,0x00040020,0x00000020,0x00000002,0x0000001c,0x0004003b,0x00000014,0x00000023,
0x00000001,0x0004002b,0x00000006,0x00000025,0x00000000,0x0004002b,0x00000006,0x00000026,
0x3f800000,0x00050036,0x00000002,0x00000004,0x00000000,0x00000003,0x000200f8,0x00000005,
0x0004003d,0x00000007,0x00000010,0x0000000f,0x00050041,0x00000011,0x00000012,0x0000000b,
0x0000000d,0x0003003e,0x00000012,0x00000010,0x0004003d,0x00000008,0x00000016,0x00000015,
0x00050041,0x00000017,0x00000018,0x0000000b,0x00000013,0x0003003e,0x00000018,0x00000016,
0x00050041,0x00000020,0x00000021,0x0000001f,0x0000000d,0x0004003d,0x0000001c,0x00000022,
0x00000021,0x0004003d,0x00000008,0x00000024,0x00000023,0x00050051,0x00000006,0x00000027,
0x00000024,0x00000000,0x00050051,0x00000006,0x00000028,0x00000024,0x00000001,0x00070050,
0x00000007,0x00000029,0x00000027,0x00000028,0x00000025,0x00000026,0x00050091,0x00000007,
0x0000002a,0x00000022,0x00000029,0x00050041,0x00000011,0x0000002b,0x0000001b,0x0000000d,
0x0003003e,0x0000002b,0x0000002a,0x000100fd,0x00010038
};
// glsl_shader.frag, compiled with:
// # glslangValidator -V -x -o glsl_shader.frag.u32 glsl_shader.frag
/*
#version 450 core
layout(location = 0) out vec4 fColor;
layout(set=0, binding=1) uniform sampler s;
layout(set=1, binding=0) uniform texture2D t;
layout(location = 0) in struct { vec4 Color; vec2 UV; } In;
void main()
{
fColor = In.Color * texture(sampler2D(t, s), In.UV.st);
}
*/
static uint32_t __glsl_shader_frag_spv[] =
{
0x07230203,0x00010000,0x00080007,0x00000023,0x00000000,0x00020011,0x00000001,0x0006000b,
0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
0x0007000f,0x00000004,0x00000004,0x6e69616d,0x00000000,0x00000009,0x0000000d,0x00030010,
0x00000004,0x00000007,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
0x00000000,0x00040005,0x00000009,0x6c6f4366,0x0000726f,0x00030005,0x0000000b,0x00000000,
0x00050006,0x0000000b,0x00000000,0x6f6c6f43,0x00000072,0x00040006,0x0000000b,0x00000001,
0x00005655,0x00030005,0x0000000d,0x00006e49,0x00030005,0x00000015,0x00000074,0x00030005,
0x00000019,0x00000073,0x00040047,0x00000009,0x0000001e,0x00000000,0x00040047,0x0000000d,
0x0000001e,0x00000000,0x00040047,0x00000015,0x00000022,0x00000001,0x00040047,0x00000015,
0x00000021,0x00000000,0x00040047,0x00000019,0x00000022,0x00000000,0x00040047,0x00000019,
0x00000021,0x00000001,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,
0x00000006,0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040020,0x00000008,
0x00000003,0x00000007,0x0004003b,0x00000008,0x00000009,0x00000003,0x00040017,0x0000000a,
0x00000006,0x00000002,0x0004001e,0x0000000b,0x00000007,0x0000000a,0x00040020,0x0000000c,
0x00000001,0x0000000b,0x0004003b,0x0000000c,0x0000000d,0x00000001,0x00040015,0x0000000e,
0x00000020,0x00000001,0x0004002b,0x0000000e,0x0000000f,0x00000000,0x00040020,0x00000010,
0x00000001,0x00000007,0x00090019,0x00000013,0x00000006,0x00000001,0x00000000,0x00000000,
0x00000000,0x00000001,0x00000000,0x00040020,0x00000014,0x00000000,0x00000013,0x0004003b,
0x00000014,0x00000015,0x00000000,0x0002001a,0x00000017,0x00040020,0x00000018,0x00000000,
0x00000017,0x0004003b,0x00000018,0x00000019,0x00000000,0x0003001b,0x0000001b,0x00000013,
0x0004002b,0x0000000e,0x0000001d,0x00000001,0x00040020,0x0000001e,0x00000001,0x0000000a,
0x00050036,0x00000002,0x00000004,0x00000000,0x00000003,0x000200f8,0x00000005,0x00050041,
0x00000010,0x00000011,0x0000000d,0x0000000f,0x0004003d,0x00000007,0x00000012,0x00000011,
0x0004003d,0x00000013,0x00000016,0x00000015,0x0004003d,0x00000017,0x0000001a,0x00000019,
0x00050056,0x0000001b,0x0000001c,0x00000016,0x0000001a,0x00050041,0x0000001e,0x0000001f,
0x0000000d,0x0000001d,0x0004003d,0x0000000a,0x00000020,0x0000001f,0x00050057,0x00000007,
0x00000021,0x0000001c,0x00000020,0x00050085,0x00000007,0x00000022,0x00000012,0x00000021,
0x0003003e,0x00000009,0x00000022,0x000100fd,0x00010038
};
static void SafeRelease(ImDrawIdx*& res)
{
if (res)
delete[] res;
res = nullptr;
}
static void SafeRelease(ImDrawVert*& res)
{
if (res)
delete[] res;
res = nullptr;
}
static void SafeRelease(WGPUBindGroupLayout& res)
{
if (res)
wgpuBindGroupLayoutRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUBindGroup& res)
{
if (res)
wgpuBindGroupRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUBuffer& res)
{
if (res)
wgpuBufferRelease(res);
res = nullptr;
}
static void SafeRelease(WGPURenderPipeline& res)
{
if (res)
wgpuRenderPipelineRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUSampler& res)
{
if (res)
wgpuSamplerRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUShaderModule& res)
{
if (res)
wgpuShaderModuleRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUTextureView& res)
{
if (res)
wgpuTextureViewRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUTexture& res)
{
if (res)
wgpuTextureRelease(res);
res = nullptr;
}
static void SafeRelease(RenderResources& res)
{
SafeRelease(res.FontTexture);
SafeRelease(res.FontTextureView);
SafeRelease(res.Sampler);
SafeRelease(res.Uniforms);
SafeRelease(res.CommonBindGroup);
SafeRelease(res.ImageBindGroup);
SafeRelease(res.ImageBindGroupLayout);
};
static void SafeRelease(FrameResources& res)
{
SafeRelease(res.IndexBuffer);
SafeRelease(res.VertexBuffer);
SafeRelease(res.IndexBufferHost);
SafeRelease(res.VertexBufferHost);
}
static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(uint32_t* binary_data, uint32_t binary_data_size)
{
WGPUShaderModuleSPIRVDescriptor spirv_desc = {};
spirv_desc.chain.sType = WGPUSType_ShaderModuleSPIRVDescriptor;
spirv_desc.codeSize = binary_data_size;
spirv_desc.code = binary_data;
WGPUShaderModuleDescriptor desc = {};
desc.nextInChain = reinterpret_cast<WGPUChainedStruct*>(&spirv_desc);
WGPUProgrammableStageDescriptor stage_desc = {};
stage_desc.module = wgpuDeviceCreateShaderModule(g_wgpuDevice, &desc);
stage_desc.entryPoint = "main";
return stage_desc;
}
static WGPUBindGroup ImGui_ImplWGPU_CreateImageBindGroup(WGPUBindGroupLayout layout, WGPUTextureView texture)
{
WGPUBindGroupEntry image_bg_entries[] = { { nullptr, 0, 0, 0, 0, 0, texture } };
WGPUBindGroupDescriptor image_bg_descriptor = {};
image_bg_descriptor.layout = layout;
image_bg_descriptor.entryCount = sizeof(image_bg_entries) / sizeof(WGPUBindGroupEntry);
image_bg_descriptor.entries = image_bg_entries;
return wgpuDeviceCreateBindGroup(g_wgpuDevice, &image_bg_descriptor);
}
static void ImGui_ImplWGPU_SetupRenderState(ImDrawData* draw_data, WGPURenderPassEncoder ctx, FrameResources* fr)
{
// Setup orthographic projection matrix into our constant buffer
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
{
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
float mvp[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
};
wgpuQueueWriteBuffer(g_defaultQueue, g_resources.Uniforms, 0, mvp, sizeof(mvp));
}
// Setup viewport
wgpuRenderPassEncoderSetViewport(ctx, 0, 0, draw_data->FramebufferScale.x * draw_data->DisplaySize.x, draw_data->FramebufferScale.y * draw_data->DisplaySize.y, 0, 1);
// Bind shader and vertex buffers
wgpuRenderPassEncoderSetVertexBuffer(ctx, 0, fr->VertexBuffer, 0, fr->VertexBufferSize * sizeof(ImDrawVert));
wgpuRenderPassEncoderSetIndexBuffer(ctx, fr->IndexBuffer, sizeof(ImDrawIdx) == 2 ? WGPUIndexFormat_Uint16 : WGPUIndexFormat_Uint32, 0, fr->IndexBufferSize * sizeof(ImDrawIdx));
wgpuRenderPassEncoderSetPipeline(ctx, g_pipelineState);
wgpuRenderPassEncoderSetBindGroup(ctx, 0, g_resources.CommonBindGroup, 0, nullptr);
// Setup blend factor
WGPUColor blend_color = { 0.f, 0.f, 0.f, 0.f };
wgpuRenderPassEncoderSetBlendConstant(ctx, &blend_color);
}
// Render function
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// FIXME: Assuming that this only gets called once per frame!
// If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
g_frameIndex = g_frameIndex + 1;
FrameResources* fr = &g_pFrameResources[g_frameIndex % g_numFramesInFlight];
// Create and grow vertex/index buffers if needed
if (fr->VertexBuffer == nullptr || fr->VertexBufferSize < draw_data->TotalVtxCount)
{
if (fr->VertexBuffer)
{
wgpuBufferDestroy(fr->VertexBuffer);
wgpuBufferRelease(fr->VertexBuffer);
}
SafeRelease(fr->VertexBufferHost);
fr->VertexBufferSize = draw_data->TotalVtxCount + 5000;
WGPUBufferDescriptor vb_desc =
{
nullptr,
"Dear ImGui Vertex buffer",
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Vertex,
fr->VertexBufferSize * sizeof(ImDrawVert),
false
};
fr->VertexBuffer = wgpuDeviceCreateBuffer(g_wgpuDevice, &vb_desc);
if (!fr->VertexBuffer)
return;
fr->VertexBufferHost = new ImDrawVert[fr->VertexBufferSize];
}
if (fr->IndexBuffer == nullptr || fr->IndexBufferSize < draw_data->TotalIdxCount)
{
if (fr->IndexBuffer)
{
wgpuBufferDestroy(fr->IndexBuffer);
wgpuBufferRelease(fr->IndexBuffer);
}
SafeRelease(fr->IndexBufferHost);
fr->IndexBufferSize = draw_data->TotalIdxCount + 10000;
WGPUBufferDescriptor ib_desc =
{
nullptr,
"Dear ImGui Index buffer",
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Index,
fr->IndexBufferSize * sizeof(ImDrawIdx),
false
};
fr->IndexBuffer = wgpuDeviceCreateBuffer(g_wgpuDevice, &ib_desc);
if (!fr->IndexBuffer)
return;
fr->IndexBufferHost = new ImDrawIdx[fr->IndexBufferSize];
}
// Upload vertex/index data into a single contiguous GPU buffer
ImDrawVert* vtx_dst = (ImDrawVert*)fr->VertexBufferHost;
ImDrawIdx* idx_dst = (ImDrawIdx*)fr->IndexBufferHost;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
vtx_dst += cmd_list->VtxBuffer.Size;
idx_dst += cmd_list->IdxBuffer.Size;
}
int64_t vb_write_size = ((char*)vtx_dst - (char*)fr->VertexBufferHost + 3) & ~3;
int64_t ib_write_size = ((char*)idx_dst - (char*)fr->IndexBufferHost + 3) & ~3;
wgpuQueueWriteBuffer(g_defaultQueue, fr->VertexBuffer, 0, fr->VertexBufferHost, vb_write_size);
wgpuQueueWriteBuffer(g_defaultQueue, fr->IndexBuffer, 0, fr->IndexBufferHost, ib_write_size);
// Setup desired render state
ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
// Render command lists
// (Because we merged all buffers into a single one, we maintain our own offset into them)
int global_vtx_offset = 0;
int global_idx_offset = 0;
ImVec2 clip_scale = draw_data->FramebufferScale;
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback != nullptr)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Bind custom texture
ImTextureID tex_id = pcmd->GetTexID();
ImGuiID tex_id_hash = ImHashData(&tex_id, sizeof(tex_id));
auto bind_group = g_resources.ImageBindGroups.GetVoidPtr(tex_id_hash);
if (bind_group)
{
wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, (WGPUBindGroup)bind_group, 0, nullptr);
}
else
{
WGPUBindGroup image_bind_group = ImGui_ImplWGPU_CreateImageBindGroup(g_resources.ImageBindGroupLayout, (WGPUTextureView)tex_id);
g_resources.ImageBindGroups.SetVoidPtr(tex_id_hash, image_bind_group);
wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, image_bind_group, 0, nullptr);
}
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
continue;
// mziulek: Fixes 'Popups and Modal windows->Modals->Stacked modals..' from showDemoWindow().
if (clip_min.x < 0.0f) clip_min.x = 0.0f;
if (clip_min.y < 0.0f) clip_min.y = 0.0f;
if (clip_max.x > draw_data->DisplaySize.x) clip_max.x = draw_data->DisplaySize.x;
if (clip_max.y > draw_data->DisplaySize.y) clip_max.y = draw_data->DisplaySize.y;
// Apply scissor/clipping rectangle, Draw
wgpuRenderPassEncoderSetScissorRect(pass_encoder, (uint32_t)clip_min.x, (uint32_t)clip_min.y, (uint32_t)(clip_max.x - clip_min.x), (uint32_t)(clip_max.y - clip_min.y));
wgpuRenderPassEncoderDrawIndexed(pass_encoder, pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
}
}
global_idx_offset += cmd_list->IdxBuffer.Size;
global_vtx_offset += cmd_list->VtxBuffer.Size;
}
}
static void ImGui_ImplWGPU_CreateFontsTexture()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height, size_pp;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, &size_pp);
// Upload texture to graphics system
{
WGPUTextureDescriptor tex_desc = {};
tex_desc.label = "Dear ImGui Font Texture";
tex_desc.dimension = WGPUTextureDimension_2D;
tex_desc.size.width = width;
tex_desc.size.height = height;
tex_desc.size.depthOrArrayLayers = 1;
tex_desc.sampleCount = 1;
tex_desc.format = WGPUTextureFormat_RGBA8Unorm;
tex_desc.mipLevelCount = 1;
tex_desc.usage = WGPUTextureUsage_CopyDst | WGPUTextureUsage_TextureBinding;
g_resources.FontTexture = wgpuDeviceCreateTexture(g_wgpuDevice, &tex_desc);
WGPUTextureViewDescriptor tex_view_desc = {};
tex_view_desc.format = WGPUTextureFormat_RGBA8Unorm;
tex_view_desc.dimension = WGPUTextureViewDimension_2D;
tex_view_desc.baseMipLevel = 0;
tex_view_desc.mipLevelCount = 1;
tex_view_desc.baseArrayLayer = 0;
tex_view_desc.arrayLayerCount = 1;
tex_view_desc.aspect = WGPUTextureAspect_All;
g_resources.FontTextureView = wgpuTextureCreateView(g_resources.FontTexture, &tex_view_desc);
}
// Upload texture data
{
WGPUImageCopyTexture dst_view = {};
dst_view.texture = g_resources.FontTexture;
dst_view.mipLevel = 0;
dst_view.origin = { 0, 0, 0 };
dst_view.aspect = WGPUTextureAspect_All;
WGPUTextureDataLayout layout = {};
layout.offset = 0;
layout.bytesPerRow = width * size_pp;
layout.rowsPerImage = height;
WGPUExtent3D size = { (uint32_t)width, (uint32_t)height, 1 };
wgpuQueueWriteTexture(g_defaultQueue, &dst_view, pixels, (uint32_t)(width * size_pp * height), &layout, &size);
}
// Create the associated sampler
// (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
{
const WGPUFilterMode filter_mode = g_config.texture_filter_mode == 1 ? WGPUFilterMode_Linear : WGPUFilterMode_Nearest;
WGPUSamplerDescriptor sampler_desc = {};
sampler_desc.minFilter = filter_mode;
sampler_desc.magFilter = filter_mode;
sampler_desc.mipmapFilter = filter_mode;
sampler_desc.addressModeU = WGPUAddressMode_Repeat;
sampler_desc.addressModeV = WGPUAddressMode_Repeat;
sampler_desc.addressModeW = WGPUAddressMode_Repeat;
sampler_desc.maxAnisotropy = 1;
g_resources.Sampler = wgpuDeviceCreateSampler(g_wgpuDevice, &sampler_desc);
}
// Store our identifier
static_assert(sizeof(ImTextureID) >= sizeof(g_resources.FontTexture), "Can't pack descriptor handle into TexID, 32-bit not supported yet.");
io.Fonts->SetTexID((ImTextureID)g_resources.FontTextureView);
}
static void ImGui_ImplWGPU_CreateUniformBuffer()
{
WGPUBufferDescriptor ub_desc =
{
nullptr,
"Dear ImGui Uniform buffer",
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Uniform,
sizeof(Uniforms),
false
};
g_resources.Uniforms = wgpuDeviceCreateBuffer(g_wgpuDevice, &ub_desc);
}
bool ImGui_ImplWGPU_CreateDeviceObjects(void)
{
if (!g_wgpuDevice)
return false;
if (g_pipelineState)
ImGui_ImplWGPU_InvalidateDeviceObjects();
// Create render pipeline
WGPURenderPipelineDescriptor graphics_pipeline_desc = {};
graphics_pipeline_desc.primitive.topology = WGPUPrimitiveTopology_TriangleList;
graphics_pipeline_desc.primitive.stripIndexFormat = WGPUIndexFormat_Undefined;
graphics_pipeline_desc.primitive.frontFace = WGPUFrontFace_CW;
graphics_pipeline_desc.primitive.cullMode = WGPUCullMode_None;
graphics_pipeline_desc.multisample.count = g_config.pipeline_multisample_count;
graphics_pipeline_desc.multisample.mask = UINT_MAX;
graphics_pipeline_desc.multisample.alphaToCoverageEnabled = false;
graphics_pipeline_desc.layout = nullptr; // Use automatic layout generation
// Create the vertex shader
WGPUProgrammableStageDescriptor vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__glsl_shader_vert_spv, sizeof(__glsl_shader_vert_spv) / sizeof(uint32_t));
graphics_pipeline_desc.vertex.module = vertex_shader_desc.module;
graphics_pipeline_desc.vertex.entryPoint = vertex_shader_desc.entryPoint;
// Vertex input configuration
WGPUVertexAttribute attribute_desc[] =
{
{ WGPUVertexFormat_Float32x2, (uint64_t)IM_OFFSETOF(ImDrawVert, pos), 0 },
{ WGPUVertexFormat_Float32x2, (uint64_t)IM_OFFSETOF(ImDrawVert, uv), 1 },
{ WGPUVertexFormat_Unorm8x4, (uint64_t)IM_OFFSETOF(ImDrawVert, col), 2 },
};
WGPUVertexBufferLayout buffer_layouts[1];
buffer_layouts[0].arrayStride = sizeof(ImDrawVert);
buffer_layouts[0].stepMode = WGPUVertexStepMode_Vertex;
buffer_layouts[0].attributeCount = 3;
buffer_layouts[0].attributes = attribute_desc;
graphics_pipeline_desc.vertex.bufferCount = 1;
graphics_pipeline_desc.vertex.buffers = buffer_layouts;
// Create the pixel shader
WGPUProgrammableStageDescriptor pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__glsl_shader_frag_spv, sizeof(__glsl_shader_frag_spv) / sizeof(uint32_t));
// Create the blending setup
WGPUBlendState blend_state = {};
blend_state.alpha.operation = WGPUBlendOperation_Add;
blend_state.alpha.srcFactor = WGPUBlendFactor_One;
blend_state.alpha.dstFactor = WGPUBlendFactor_OneMinusSrcAlpha;
blend_state.color.operation = WGPUBlendOperation_Add;
blend_state.color.srcFactor = WGPUBlendFactor_SrcAlpha;
blend_state.color.dstFactor = WGPUBlendFactor_OneMinusSrcAlpha;
WGPUColorTargetState color_state = {};
color_state.format = g_renderTargetFormat;
color_state.blend = &blend_state;
color_state.writeMask = WGPUColorWriteMask_All;
WGPUFragmentState fragment_state = {};
fragment_state.module = pixel_shader_desc.module;
fragment_state.entryPoint = pixel_shader_desc.entryPoint;
fragment_state.targetCount = 1;
fragment_state.targets = &color_state;
graphics_pipeline_desc.fragment = &fragment_state;
// Create depth-stencil State
WGPUDepthStencilState depth_stencil_state = {};
depth_stencil_state.depthBias = 0;
depth_stencil_state.depthBiasClamp = 0;
depth_stencil_state.depthBiasSlopeScale = 0;
// Configure disabled depth-stencil state
graphics_pipeline_desc.depthStencil = nullptr;
g_pipelineState = wgpuDeviceCreateRenderPipeline(g_wgpuDevice, &graphics_pipeline_desc);
ImGui_ImplWGPU_CreateFontsTexture();
ImGui_ImplWGPU_CreateUniformBuffer();
// Create resource bind group
WGPUBindGroupLayout bg_layouts[2];
bg_layouts[0] = wgpuRenderPipelineGetBindGroupLayout(g_pipelineState, 0);
bg_layouts[1] = wgpuRenderPipelineGetBindGroupLayout(g_pipelineState, 1);
WGPUBindGroupEntry common_bg_entries[] =
{
{ nullptr, 0, g_resources.Uniforms, 0, sizeof(Uniforms), 0, 0 },
{ nullptr, 1, 0, 0, 0, g_resources.Sampler, 0 },
};
WGPUBindGroupDescriptor common_bg_descriptor = {};
common_bg_descriptor.layout = bg_layouts[0];
common_bg_descriptor.entryCount = sizeof(common_bg_entries) / sizeof(WGPUBindGroupEntry);
common_bg_descriptor.entries = common_bg_entries;
g_resources.CommonBindGroup = wgpuDeviceCreateBindGroup(g_wgpuDevice, &common_bg_descriptor);
WGPUBindGroup image_bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bg_layouts[1], g_resources.FontTextureView);
g_resources.ImageBindGroup = image_bind_group;
g_resources.ImageBindGroupLayout = bg_layouts[1];
g_resources.ImageBindGroups.SetVoidPtr(ImHashData(&g_resources.FontTextureView, sizeof(ImTextureID)), image_bind_group);
SafeRelease(vertex_shader_desc.module);
SafeRelease(pixel_shader_desc.module);
SafeRelease(bg_layouts[0]);
return true;
}
void ImGui_ImplWGPU_InvalidateDeviceObjects(void)
{
if (!g_wgpuDevice)
return;
SafeRelease(g_pipelineState);
SafeRelease(g_resources);
ImGuiIO& io = ImGui::GetIO();
io.Fonts->SetTexID(nullptr); // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
for (unsigned int i = 0; i < g_numFramesInFlight; i++)
SafeRelease(g_pFrameResources[i]);
}
bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format, const Config* config)
{
g_config = *config;
// Setup backend capabilities flags
ImGuiIO& io = ImGui::GetIO();
io.BackendRendererName = "imgui_impl_webgpu";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
g_wgpuDevice = device;
g_defaultQueue = wgpuDeviceGetQueue(g_wgpuDevice);
g_renderTargetFormat = rt_format;
g_pFrameResources = new FrameResources[num_frames_in_flight];
g_numFramesInFlight = num_frames_in_flight;
g_frameIndex = UINT_MAX;
g_resources.FontTexture = nullptr;
g_resources.FontTextureView = nullptr;
g_resources.Sampler = nullptr;
g_resources.Uniforms = nullptr;
g_resources.CommonBindGroup = nullptr;
g_resources.ImageBindGroups.Data.reserve(100);
g_resources.ImageBindGroup = nullptr;
g_resources.ImageBindGroupLayout = nullptr;
// Create buffers with a default size (they will later be grown as needed)
for (int i = 0; i < num_frames_in_flight; i++)
{
FrameResources* fr = &g_pFrameResources[i];
fr->IndexBuffer = nullptr;
fr->VertexBuffer = nullptr;
fr->IndexBufferHost = nullptr;
fr->VertexBufferHost = nullptr;
fr->IndexBufferSize = 10000;
fr->VertexBufferSize = 5000;
}
return true;
}
void ImGui_ImplWGPU_Shutdown(void)
{
// mziulek: Explicitly release the memory reserved in ImGui_ImplWGPU_Init().
g_resources.ImageBindGroups.Clear();
ImGui_ImplWGPU_InvalidateDeviceObjects();
delete[] g_pFrameResources;
g_pFrameResources = nullptr;
wgpuQueueRelease(g_defaultQueue);
g_wgpuDevice = nullptr;
g_numFramesInFlight = 0;
g_frameIndex = UINT_MAX;
}
void ImGui_ImplWGPU_NewFrame(void)
{
if (!g_pipelineState)
ImGui_ImplWGPU_CreateDeviceObjects();
}
|
0 | repos/zig_vulkan/deps | repos/zig_vulkan/deps/stb_image/README.md | # stb_image zig wrapper
A primitive wrapper for stb in zig
# What
stb_image is a part of the great header only library stb. Source code can be found [here](https://github.com/nothings/stb)
# How to use
Add the following to your build script
```zig
const stbi = @import("path/to/stbi/build.zig");
// ... later in build function
stbi.linkStep(b, exe);
```
|
0 | repos/zig_vulkan/deps | repos/zig_vulkan/deps/stb_image/build.zig | const std = @import("std");
pub fn linkStep(b: *std.build.Builder, step: *std.build.LibExeObjStep) void {
const this_dir = std.fs.path.dirname(@src().file) orelse ".";
var include_dir = std.fs.path.join(b.allocator, &.{ this_dir, "c_src/" }) catch unreachable;
defer b.allocator.free(include_dir);
step.addIncludePath(include_dir);
var src_path = std.fs.path.join(b.allocator, &.{ include_dir, "stb_image.c" }) catch unreachable;
defer b.allocator.free(src_path);
const src_paths = [_][]u8{src_path};
step.addCSourceFiles(src_paths[0..], &.{});
var src_file = std.fs.path.join(b.allocator, &.{ this_dir, "src/main.zig" }) catch unreachable;
step.addModule("stbi", b.createModule(.{
.source_file = .{ .path = src_file },
}));
}
pub fn build(b: *std.build.Builder) void {
// Standard release options allow the person running `zig build` to select
// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
const mode = b.standardReleaseOptions();
const lib = b.addStaticLibrary("stbi", "src/main.zig");
lib.setBuildMode(mode);
lib.install();
var main_tests = b.addTest("src/main.zig");
main_tests.setBuildMode(mode);
const test_step = b.step("test", "Run library tests");
test_step.dependOn(&main_tests.step);
}
|
0 | repos/zig_vulkan/deps/stb_image | repos/zig_vulkan/deps/stb_image/c_src/stb_image.h | /* stb_image - v2.27 - public domain image loader - http://nothings.org/stb
no warranty implied; use at your own risk
Do this:
#define STB_IMAGE_IMPLEMENTATION
before you include this file in *one* C or C++ file to create the implementation.
// i.e. it should look like this:
#include ...
#include ...
#include ...
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
You can #define STBI_ASSERT(x) before the #include to avoid using assert.h.
And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free
QUICK NOTES:
Primarily of interest to game developers and other people who can
avoid problematic images and only need the trivial interface
JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib)
PNG 1/2/4/8/16-bit-per-channel
TGA (not sure what subset, if a subset)
BMP non-1bpp, non-RLE
PSD (composited view only, no extra channels, 8/16 bit-per-channel)
GIF (*comp always reports as 4-channel)
HDR (radiance rgbE format)
PIC (Softimage PIC)
PNM (PPM and PGM binary only)
Animated GIF still needs a proper API, but here's one way to do it:
http://gist.github.com/urraka/685d9a6340b26b830d49
- decode from memory or through FILE (define STBI_NO_STDIO to remove code)
- decode from arbitrary I/O callbacks
- SIMD acceleration on x86/x64 (SSE2) and ARM (NEON)
Full documentation under "DOCUMENTATION" below.
LICENSE
See end of file for license information.
RECENT REVISION HISTORY:
2.27 (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes
2.26 (2020-07-13) many minor fixes
2.25 (2020-02-02) fix warnings
2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically
2.23 (2019-08-11) fix clang static analysis warning
2.22 (2019-03-04) gif fixes, fix warnings
2.21 (2019-02-25) fix typo in comment
2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs
2.19 (2018-02-11) fix warning
2.18 (2018-01-30) fix warnings
2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings
2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes
2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC
2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs
2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes
2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes
2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64
RGB-format JPEG; remove white matting in PSD;
allocate large structures on the stack;
correct channel count for PNG & BMP
2.10 (2016-01-22) avoid warning introduced in 2.09
2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED
See end of file for full revision history.
============================ Contributors =========================
Image formats Extensions, features
Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info)
Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info)
Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG)
Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks)
Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG)
Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip)
Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD)
github:urraka (animated gif) Junggon Kim (PNM comments)
Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA)
socks-the-fox (16-bit PNG)
Jeremy Sawicki (handle all ImageNet JPGs)
Optimizations & bugfixes Mikhail Morozov (1-bit BMP)
Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query)
Arseny Kapoulkine Simon Breuss (16-bit PNM)
John-Mark Allen
Carmelo J Fdez-Aguera
Bug & warning fixes
Marc LeBlanc David Woo Guillaume George Martins Mozeiko
Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski
Phil Jordan Dave Moore Roy Eltham
Hayaki Saito Nathan Reed Won Chun
Luke Graham Johan Duparc Nick Verigakis the Horde3D community
Thomas Ruf Ronny Chevalier github:rlyeh
Janez Zemva John Bartholomew Michal Cichon github:romigrou
Jonathan Blow Ken Hamada Tero Hanninen github:svdijk
Eugene Golushkov Laurent Gomila Cort Stratton github:snagar
Aruelien Pocheville Sergio Gonzalez Thibault Reuille github:Zelex
Cass Everitt Ryamond Barbiero github:grim210
Paul Du Bois Engin Manap Aldo Culquicondor github:sammyhw
Philipp Wiesemann Dale Weiler Oriol Ferrer Mesia github:phprus
Josh Tobin Matthew Gregan github:poppolopoppo
Julian Raschke Gregory Mullen Christian Floisand github:darealshinji
Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007
Brad Weinberger Matvey Cherevko github:mosra
Luca Sas Alexander Veselov Zack Middleton [reserved]
Ryan C. Gordon [reserved] [reserved]
DO NOT ADD YOUR NAME HERE
Jacko Dirks
To add your name to the credits, pick a random blank space in the middle and fill it.
80% of merge conflicts on stb PRs are due to people adding their name at the end
of the credits.
*/
#ifndef STBI_INCLUDE_STB_IMAGE_H
#define STBI_INCLUDE_STB_IMAGE_H
// DOCUMENTATION
//
// Limitations:
// - no 12-bit-per-channel JPEG
// - no JPEGs with arithmetic coding
// - GIF always returns *comp=4
//
// Basic usage (see HDR discussion below for HDR usage):
// int x,y,n;
// unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
// // ... process data if not NULL ...
// // ... x = width, y = height, n = # 8-bit components per pixel ...
// // ... replace '0' with '1'..'4' to force that many components per pixel
// // ... but 'n' will always be the number that it would have been if you said 0
// stbi_image_free(data)
//
// Standard parameters:
// int *x -- outputs image width in pixels
// int *y -- outputs image height in pixels
// int *channels_in_file -- outputs # of image components in image file
// int desired_channels -- if non-zero, # of image components requested in result
//
// The return value from an image loader is an 'unsigned char *' which points
// to the pixel data, or NULL on an allocation failure or if the image is
// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels,
// with each pixel consisting of N interleaved 8-bit components; the first
// pixel pointed to is top-left-most in the image. There is no padding between
// image scanlines or between pixels, regardless of format. The number of
// components N is 'desired_channels' if desired_channels is non-zero, or
// *channels_in_file otherwise. If desired_channels is non-zero,
// *channels_in_file has the number of components that _would_ have been
// output otherwise. E.g. if you set desired_channels to 4, you will always
// get RGBA output, but you can check *channels_in_file to see if it's trivially
// opaque because e.g. there were only 3 channels in the source image.
//
// An output image with N components has the following components interleaved
// in this order in each pixel:
//
// N=#comp components
// 1 grey
// 2 grey, alpha
// 3 red, green, blue
// 4 red, green, blue, alpha
//
// If image loading fails for any reason, the return value will be NULL,
// and *x, *y, *channels_in_file will be unchanged. The function
// stbi_failure_reason() can be queried for an extremely brief, end-user
// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS
// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly
// more user-friendly ones.
//
// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.
//
// To query the width, height and component count of an image without having to
// decode the full file, you can use the stbi_info family of functions:
//
// int x,y,n,ok;
// ok = stbi_info(filename, &x, &y, &n);
// // returns ok=1 and sets x, y, n if image is a supported format,
// // 0 otherwise.
//
// Note that stb_image pervasively uses ints in its public API for sizes,
// including sizes of memory buffers. This is now part of the API and thus
// hard to change without causing breakage. As a result, the various image
// loaders all have certain limits on image size; these differ somewhat
// by format but generally boil down to either just under 2GB or just under
// 1GB. When the decoded image would be larger than this, stb_image decoding
// will fail.
//
// Additionally, stb_image will reject image files that have any of their
// dimensions set to a larger value than the configurable STBI_MAX_DIMENSIONS,
// which defaults to 2**24 = 16777216 pixels. Due to the above memory limit,
// the only way to have an image with such dimensions load correctly
// is for it to have a rather extreme aspect ratio. Either way, the
// assumption here is that such larger images are likely to be malformed
// or malicious. If you do need to load an image with individual dimensions
// larger than that, and it still fits in the overall size limit, you can
// #define STBI_MAX_DIMENSIONS on your own to be something larger.
//
// ===========================================================================
//
// UNICODE:
//
// If compiling for Windows and you wish to use Unicode filenames, compile
// with
// #define STBI_WINDOWS_UTF8
// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert
// Windows wchar_t filenames to utf8.
//
// ===========================================================================
//
// Philosophy
//
// stb libraries are designed with the following priorities:
//
// 1. easy to use
// 2. easy to maintain
// 3. good performance
//
// Sometimes I let "good performance" creep up in priority over "easy to maintain",
// and for best performance I may provide less-easy-to-use APIs that give higher
// performance, in addition to the easy-to-use ones. Nevertheless, it's important
// to keep in mind that from the standpoint of you, a client of this library,
// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all.
//
// Some secondary priorities arise directly from the first two, some of which
// provide more explicit reasons why performance can't be emphasized.
//
// - Portable ("ease of use")
// - Small source code footprint ("easy to maintain")
// - No dependencies ("ease of use")
//
// ===========================================================================
//
// I/O callbacks
//
// I/O callbacks allow you to read from arbitrary sources, like packaged
// files or some other source. Data read from callbacks are processed
// through a small internal buffer (currently 128 bytes) to try to reduce
// overhead.
//
// The three functions you must define are "read" (reads some bytes of data),
// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).
//
// ===========================================================================
//
// SIMD support
//
// The JPEG decoder will try to automatically use SIMD kernels on x86 when
// supported by the compiler. For ARM Neon support, you must explicitly
// request it.
//
// (The old do-it-yourself SIMD API is no longer supported in the current
// code.)
//
// On x86, SSE2 will automatically be used when available based on a run-time
// test; if not, the generic C versions are used as a fall-back. On ARM targets,
// the typical path is to have separate builds for NEON and non-NEON devices
// (at least this is true for iOS and Android). Therefore, the NEON support is
// toggled by a build flag: define STBI_NEON to get NEON loops.
//
// If for some reason you do not want to use any of SIMD code, or if
// you have issues compiling it, you can disable it entirely by
// defining STBI_NO_SIMD.
//
// ===========================================================================
//
// HDR image support (disable by defining STBI_NO_HDR)
//
// stb_image supports loading HDR images in general, and currently the Radiance
// .HDR file format specifically. You can still load any file through the existing
// interface; if you attempt to load an HDR file, it will be automatically remapped
// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;
// both of these constants can be reconfigured through this interface:
//
// stbi_hdr_to_ldr_gamma(2.2f);
// stbi_hdr_to_ldr_scale(1.0f);
//
// (note, do not use _inverse_ constants; stbi_image will invert them
// appropriately).
//
// Additionally, there is a new, parallel interface for loading files as
// (linear) floats to preserve the full dynamic range:
//
// float *data = stbi_loadf(filename, &x, &y, &n, 0);
//
// If you load LDR images through this interface, those images will
// be promoted to floating point values, run through the inverse of
// constants corresponding to the above:
//
// stbi_ldr_to_hdr_scale(1.0f);
// stbi_ldr_to_hdr_gamma(2.2f);
//
// Finally, given a filename (or an open file or memory block--see header
// file for details) containing image data, you can query for the "most
// appropriate" interface to use (that is, whether the image is HDR or
// not), using:
//
// stbi_is_hdr(char *filename);
//
// ===========================================================================
//
// iPhone PNG support:
//
// We optionally support converting iPhone-formatted PNGs (which store
// premultiplied BGRA) back to RGB, even though they're internally encoded
// differently. To enable this conversion, call
// stbi_convert_iphone_png_to_rgb(1).
//
// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per
// pixel to remove any premultiplied alpha *only* if the image file explicitly
// says there's premultiplied data (currently only happens in iPhone images,
// and only if iPhone convert-to-rgb processing is on).
//
// ===========================================================================
//
// ADDITIONAL CONFIGURATION
//
// - You can suppress implementation of any of the decoders to reduce
// your code footprint by #defining one or more of the following
// symbols before creating the implementation.
//
// STBI_NO_JPEG
// STBI_NO_PNG
// STBI_NO_BMP
// STBI_NO_PSD
// STBI_NO_TGA
// STBI_NO_GIF
// STBI_NO_HDR
// STBI_NO_PIC
// STBI_NO_PNM (.ppm and .pgm)
//
// - You can request *only* certain decoders and suppress all other ones
// (this will be more forward-compatible, as addition of new decoders
// doesn't require you to disable them explicitly):
//
// STBI_ONLY_JPEG
// STBI_ONLY_PNG
// STBI_ONLY_BMP
// STBI_ONLY_PSD
// STBI_ONLY_TGA
// STBI_ONLY_GIF
// STBI_ONLY_HDR
// STBI_ONLY_PIC
// STBI_ONLY_PNM (.ppm and .pgm)
//
// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still
// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB
//
// - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater
// than that size (in either width or height) without further processing.
// This is to let programs in the wild set an upper bound to prevent
// denial-of-service attacks on untrusted data, as one could generate a
// valid image of gigantic dimensions and force stb_image to allocate a
// huge block of memory and spend disproportionate time decoding it. By
// default this is set to (1 << 24), which is 16777216, but that's still
// very big.
#ifndef STBI_NO_STDIO
#include <stdio.h>
#endif // STBI_NO_STDIO
#define STBI_VERSION 1
enum
{
STBI_default = 0, // only used for desired_channels
STBI_grey = 1,
STBI_grey_alpha = 2,
STBI_rgb = 3,
STBI_rgb_alpha = 4
};
#include <stdlib.h>
typedef unsigned char stbi_uc;
typedef unsigned short stbi_us;
#ifdef __cplusplus
extern "C" {
#endif
#ifndef STBIDEF
#ifdef STB_IMAGE_STATIC
#define STBIDEF static
#else
#define STBIDEF extern
#endif
#endif
//////////////////////////////////////////////////////////////////////////////
//
// PRIMARY API - works on images of any type
//
//
// load image by filename, open file, or memory buffer
//
typedef struct
{
int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read
void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative
int (*eof) (void *user); // returns nonzero if we are at end of file/data
} stbi_io_callbacks;
////////////////////////////////////
//
// 8-bits-per-channel interface
//
STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels);
STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels);
#ifndef STBI_NO_STDIO
STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels);
STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels);
// for stbi_load_from_file, file pointer is left pointing immediately after image
#endif
#ifndef STBI_NO_GIF
STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp);
#endif
#ifdef STBI_WINDOWS_UTF8
STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input);
#endif
////////////////////////////////////
//
// 16-bits-per-channel interface
//
STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels);
STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels);
#ifndef STBI_NO_STDIO
STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels);
STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels);
#endif
////////////////////////////////////
//
// float-per-channel interface
//
#ifndef STBI_NO_LINEAR
STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels);
STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels);
#ifndef STBI_NO_STDIO
STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels);
STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels);
#endif
#endif
#ifndef STBI_NO_HDR
STBIDEF void stbi_hdr_to_ldr_gamma(float gamma);
STBIDEF void stbi_hdr_to_ldr_scale(float scale);
#endif // STBI_NO_HDR
#ifndef STBI_NO_LINEAR
STBIDEF void stbi_ldr_to_hdr_gamma(float gamma);
STBIDEF void stbi_ldr_to_hdr_scale(float scale);
#endif // STBI_NO_LINEAR
// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR
STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user);
STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len);
#ifndef STBI_NO_STDIO
STBIDEF int stbi_is_hdr (char const *filename);
STBIDEF int stbi_is_hdr_from_file(FILE *f);
#endif // STBI_NO_STDIO
// get a VERY brief reason for failure
// on most compilers (and ALL modern mainstream compilers) this is threadsafe
STBIDEF const char *stbi_failure_reason (void);
// free the loaded image -- this is just free()
STBIDEF void stbi_image_free (void *retval_from_stbi_load);
// get image dimensions & components without fully decoding
STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);
#ifndef STBI_NO_STDIO
STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
STBIDEF int stbi_is_16_bit (char const *filename);
STBIDEF int stbi_is_16_bit_from_file(FILE *f);
#endif
// for image formats that explicitly notate that they have premultiplied alpha,
// we just return the colors as stored in the file. set this flag to force
// unpremultiplication. results are undefined if the unpremultiply overflow.
STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply);
// indicate whether we should process iphone images back to canonical format,
// or just pass them through "as-is"
STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
// flip the image vertically, so the first pixel in the output array is the bottom left
STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip);
// as above, but only applies to images loaded on the thread that calls the function
// this function is only available if your compiler supports thread-local variables;
// calling it will fail to link if your compiler doesn't
STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply);
STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert);
STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip);
// ZLIB client - used by PNG, available for other purposes
STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen);
STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header);
STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen);
STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen);
STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
#ifdef __cplusplus
}
#endif
//
//
//// end header file /////////////////////////////////////////////////////
#endif // STBI_INCLUDE_STB_IMAGE_H
#ifdef STB_IMAGE_IMPLEMENTATION
#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \
|| defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \
|| defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \
|| defined(STBI_ONLY_ZLIB)
#ifndef STBI_ONLY_JPEG
#define STBI_NO_JPEG
#endif
#ifndef STBI_ONLY_PNG
#define STBI_NO_PNG
#endif
#ifndef STBI_ONLY_BMP
#define STBI_NO_BMP
#endif
#ifndef STBI_ONLY_PSD
#define STBI_NO_PSD
#endif
#ifndef STBI_ONLY_TGA
#define STBI_NO_TGA
#endif
#ifndef STBI_ONLY_GIF
#define STBI_NO_GIF
#endif
#ifndef STBI_ONLY_HDR
#define STBI_NO_HDR
#endif
#ifndef STBI_ONLY_PIC
#define STBI_NO_PIC
#endif
#ifndef STBI_ONLY_PNM
#define STBI_NO_PNM
#endif
#endif
#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB)
#define STBI_NO_ZLIB
#endif
#include <stdarg.h>
#include <stddef.h> // ptrdiff_t on osx
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)
#include <math.h> // ldexp, pow
#endif
#ifndef STBI_NO_STDIO
#include <stdio.h>
#endif
#ifndef STBI_ASSERT
#include <assert.h>
#define STBI_ASSERT(x) assert(x)
#endif
#ifdef __cplusplus
#define STBI_EXTERN extern "C"
#else
#define STBI_EXTERN extern
#endif
#ifndef _MSC_VER
#ifdef __cplusplus
#define stbi_inline inline
#else
#define stbi_inline
#endif
#else
#define stbi_inline __forceinline
#endif
#ifndef STBI_NO_THREAD_LOCALS
#if defined(__cplusplus) && __cplusplus >= 201103L
#define STBI_THREAD_LOCAL thread_local
#elif defined(__GNUC__) && __GNUC__ < 5
#define STBI_THREAD_LOCAL __thread
#elif defined(_MSC_VER)
#define STBI_THREAD_LOCAL __declspec(thread)
#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__)
#define STBI_THREAD_LOCAL _Thread_local
#endif
#ifndef STBI_THREAD_LOCAL
#if defined(__GNUC__)
#define STBI_THREAD_LOCAL __thread
#endif
#endif
#endif
#ifdef _MSC_VER
typedef unsigned short stbi__uint16;
typedef signed short stbi__int16;
typedef unsigned int stbi__uint32;
typedef signed int stbi__int32;
#else
#include <stdint.h>
typedef uint16_t stbi__uint16;
typedef int16_t stbi__int16;
typedef uint32_t stbi__uint32;
typedef int32_t stbi__int32;
#endif
// should produce compiler error if size is wrong
typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1];
#ifdef _MSC_VER
#define STBI_NOTUSED(v) (void)(v)
#else
#define STBI_NOTUSED(v) (void)sizeof(v)
#endif
#ifdef _MSC_VER
#define STBI_HAS_LROTL
#endif
#ifdef STBI_HAS_LROTL
#define stbi_lrot(x,y) _lrotl(x,y)
#else
#define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (-(y) & 31)))
#endif
#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED))
// ok
#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED)
// ok
#else
#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)."
#endif
#ifndef STBI_MALLOC
#define STBI_MALLOC(sz) malloc(sz)
#define STBI_REALLOC(p,newsz) realloc(p,newsz)
#define STBI_FREE(p) free(p)
#endif
#ifndef STBI_REALLOC_SIZED
#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz)
#endif
// x86/x64 detection
#if defined(__x86_64__) || defined(_M_X64)
#define STBI__X64_TARGET
#elif defined(__i386) || defined(_M_IX86)
#define STBI__X86_TARGET
#endif
#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD)
// gcc doesn't support sse2 intrinsics unless you compile with -msse2,
// which in turn means it gets to use SSE2 everywhere. This is unfortunate,
// but previous attempts to provide the SSE2 functions with runtime
// detection caused numerous issues. The way architecture extensions are
// exposed in GCC/Clang is, sadly, not really suited for one-file libs.
// New behavior: if compiled with -msse2, we use SSE2 without any
// detection; if not, we don't use it at all.
#define STBI_NO_SIMD
#endif
#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD)
// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET
//
// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the
// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant.
// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not
// simultaneously enabling "-mstackrealign".
//
// See https://github.com/nothings/stb/issues/81 for more information.
//
// So default to no SSE2 on 32-bit MinGW. If you've read this far and added
// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2.
#define STBI_NO_SIMD
#endif
#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET))
#define STBI_SSE2
#include <emmintrin.h>
#ifdef _MSC_VER
#if _MSC_VER >= 1400 // not VC6
#include <intrin.h> // __cpuid
static int stbi__cpuid3(void)
{
int info[4];
__cpuid(info,1);
return info[3];
}
#else
static int stbi__cpuid3(void)
{
int res;
__asm {
mov eax,1
cpuid
mov res,edx
}
return res;
}
#endif
#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name
#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2)
static int stbi__sse2_available(void)
{
int info3 = stbi__cpuid3();
return ((info3 >> 26) & 1) != 0;
}
#endif
#else // assume GCC-style if not VC++
#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2)
static int stbi__sse2_available(void)
{
// If we're even attempting to compile this on GCC/Clang, that means
// -msse2 is on, which means the compiler is allowed to use SSE2
// instructions at will, and so are we.
return 1;
}
#endif
#endif
#endif
// ARM NEON
#if defined(STBI_NO_SIMD) && defined(STBI_NEON)
#undef STBI_NEON
#endif
#ifdef STBI_NEON
#include <arm_neon.h>
#ifdef _MSC_VER
#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name
#else
#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
#endif
#endif
#ifndef STBI_SIMD_ALIGN
#define STBI_SIMD_ALIGN(type, name) type name
#endif
#ifndef STBI_MAX_DIMENSIONS
#define STBI_MAX_DIMENSIONS (1 << 24)
#endif
///////////////////////////////////////////////
//
// stbi__context struct and start_xxx functions
// stbi__context structure is our basic context used by all images, so it
// contains all the IO context, plus some basic image information
typedef struct
{
stbi__uint32 img_x, img_y;
int img_n, img_out_n;
stbi_io_callbacks io;
void *io_user_data;
int read_from_callbacks;
int buflen;
stbi_uc buffer_start[128];
int callback_already_read;
stbi_uc *img_buffer, *img_buffer_end;
stbi_uc *img_buffer_original, *img_buffer_original_end;
} stbi__context;
static void stbi__refill_buffer(stbi__context *s);
// initialize a memory-decode context
static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len)
{
s->io.read = NULL;
s->read_from_callbacks = 0;
s->callback_already_read = 0;
s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer;
s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len;
}
// initialize a callback-based context
static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user)
{
s->io = *c;
s->io_user_data = user;
s->buflen = sizeof(s->buffer_start);
s->read_from_callbacks = 1;
s->callback_already_read = 0;
s->img_buffer = s->img_buffer_original = s->buffer_start;
stbi__refill_buffer(s);
s->img_buffer_original_end = s->img_buffer_end;
}
#ifndef STBI_NO_STDIO
static int stbi__stdio_read(void *user, char *data, int size)
{
return (int) fread(data,1,size,(FILE*) user);
}
static void stbi__stdio_skip(void *user, int n)
{
int ch;
fseek((FILE*) user, n, SEEK_CUR);
ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */
if (ch != EOF) {
ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */
}
}
static int stbi__stdio_eof(void *user)
{
return feof((FILE*) user) || ferror((FILE *) user);
}
static stbi_io_callbacks stbi__stdio_callbacks =
{
stbi__stdio_read,
stbi__stdio_skip,
stbi__stdio_eof,
};
static void stbi__start_file(stbi__context *s, FILE *f)
{
stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f);
}
//static void stop_file(stbi__context *s) { }
#endif // !STBI_NO_STDIO
static void stbi__rewind(stbi__context *s)
{
// conceptually rewind SHOULD rewind to the beginning of the stream,
// but we just rewind to the beginning of the initial buffer, because
// we only use it after doing 'test', which only ever looks at at most 92 bytes
s->img_buffer = s->img_buffer_original;
s->img_buffer_end = s->img_buffer_original_end;
}
enum
{
STBI_ORDER_RGB,
STBI_ORDER_BGR
};
typedef struct
{
int bits_per_channel;
int num_channels;
int channel_order;
} stbi__result_info;
#ifndef STBI_NO_JPEG
static int stbi__jpeg_test(stbi__context *s);
static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PNG
static int stbi__png_test(stbi__context *s);
static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp);
static int stbi__png_is16(stbi__context *s);
#endif
#ifndef STBI_NO_BMP
static int stbi__bmp_test(stbi__context *s);
static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_TGA
static int stbi__tga_test(stbi__context *s);
static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PSD
static int stbi__psd_test(stbi__context *s);
static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc);
static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp);
static int stbi__psd_is16(stbi__context *s);
#endif
#ifndef STBI_NO_HDR
static int stbi__hdr_test(stbi__context *s);
static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PIC
static int stbi__pic_test(stbi__context *s);
static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_GIF
static int stbi__gif_test(stbi__context *s);
static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp);
static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PNM
static int stbi__pnm_test(stbi__context *s);
static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri);
static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp);
static int stbi__pnm_is16(stbi__context *s);
#endif
static
#ifdef STBI_THREAD_LOCAL
STBI_THREAD_LOCAL
#endif
const char *stbi__g_failure_reason;
STBIDEF const char *stbi_failure_reason(void)
{
return stbi__g_failure_reason;
}
#ifndef STBI_NO_FAILURE_STRINGS
static int stbi__err(const char *str)
{
stbi__g_failure_reason = str;
return 0;
}
#endif
static void *stbi__malloc(size_t size)
{
return STBI_MALLOC(size);
}
// stb_image uses ints pervasively, including for offset calculations.
// therefore the largest decoded image size we can support with the
// current code, even on 64-bit targets, is INT_MAX. this is not a
// significant limitation for the intended use case.
//
// we do, however, need to make sure our size calculations don't
// overflow. hence a few helper functions for size calculations that
// multiply integers together, making sure that they're non-negative
// and no overflow occurs.
// return 1 if the sum is valid, 0 on overflow.
// negative terms are considered invalid.
static int stbi__addsizes_valid(int a, int b)
{
if (b < 0) return 0;
// now 0 <= b <= INT_MAX, hence also
// 0 <= INT_MAX - b <= INTMAX.
// And "a + b <= INT_MAX" (which might overflow) is the
// same as a <= INT_MAX - b (no overflow)
return a <= INT_MAX - b;
}
// returns 1 if the product is valid, 0 on overflow.
// negative factors are considered invalid.
static int stbi__mul2sizes_valid(int a, int b)
{
if (a < 0 || b < 0) return 0;
if (b == 0) return 1; // mul-by-0 is always safe
// portable way to check for no overflows in a*b
return a <= INT_MAX/b;
}
#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR)
// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow
static int stbi__mad2sizes_valid(int a, int b, int add)
{
return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add);
}
#endif
// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow
static int stbi__mad3sizes_valid(int a, int b, int c, int add)
{
return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) &&
stbi__addsizes_valid(a*b*c, add);
}
// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow
#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)
static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add)
{
return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) &&
stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add);
}
#endif
#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR)
// mallocs with size overflow checking
static void *stbi__malloc_mad2(int a, int b, int add)
{
if (!stbi__mad2sizes_valid(a, b, add)) return NULL;
return stbi__malloc(a*b + add);
}
#endif
static void *stbi__malloc_mad3(int a, int b, int c, int add)
{
if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL;
return stbi__malloc(a*b*c + add);
}
#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)
static void *stbi__malloc_mad4(int a, int b, int c, int d, int add)
{
if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL;
return stbi__malloc(a*b*c*d + add);
}
#endif
// stbi__err - error
// stbi__errpf - error returning pointer to float
// stbi__errpuc - error returning pointer to unsigned char
#ifdef STBI_NO_FAILURE_STRINGS
#define stbi__err(x,y) 0
#elif defined(STBI_FAILURE_USERMSG)
#define stbi__err(x,y) stbi__err(y)
#else
#define stbi__err(x,y) stbi__err(x)
#endif
#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL))
#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL))
STBIDEF void stbi_image_free(void *retval_from_stbi_load)
{
STBI_FREE(retval_from_stbi_load);
}
#ifndef STBI_NO_LINEAR
static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp);
#endif
#ifndef STBI_NO_HDR
static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp);
#endif
static int stbi__vertically_flip_on_load_global = 0;
STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
{
stbi__vertically_flip_on_load_global = flag_true_if_should_flip;
}
#ifndef STBI_THREAD_LOCAL
#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global
#else
static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set;
STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
{
stbi__vertically_flip_on_load_local = flag_true_if_should_flip;
stbi__vertically_flip_on_load_set = 1;
}
#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \
? stbi__vertically_flip_on_load_local \
: stbi__vertically_flip_on_load_global)
#endif // STBI_THREAD_LOCAL
static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc)
{
memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields
ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed
ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order
ri->num_channels = 0;
// test the formats with a very explicit header first (at least a FOURCC
// or distinctive magic number first)
#ifndef STBI_NO_PNG
if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri);
#endif
#ifndef STBI_NO_BMP
if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri);
#endif
#ifndef STBI_NO_GIF
if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri);
#endif
#ifndef STBI_NO_PSD
if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc);
#else
STBI_NOTUSED(bpc);
#endif
#ifndef STBI_NO_PIC
if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri);
#endif
// then the formats that can end up attempting to load with just 1 or 2
// bytes matching expectations; these are prone to false positives, so
// try them later
#ifndef STBI_NO_JPEG
if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri);
#endif
#ifndef STBI_NO_PNM
if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri);
#endif
#ifndef STBI_NO_HDR
if (stbi__hdr_test(s)) {
float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri);
return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp);
}
#endif
#ifndef STBI_NO_TGA
// test tga last because it's a crappy test!
if (stbi__tga_test(s))
return stbi__tga_load(s,x,y,comp,req_comp, ri);
#endif
return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt");
}
static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels)
{
int i;
int img_len = w * h * channels;
stbi_uc *reduced;
reduced = (stbi_uc *) stbi__malloc(img_len);
if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory");
for (i = 0; i < img_len; ++i)
reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling
STBI_FREE(orig);
return reduced;
}
static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels)
{
int i;
int img_len = w * h * channels;
stbi__uint16 *enlarged;
enlarged = (stbi__uint16 *) stbi__malloc(img_len*2);
if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory");
for (i = 0; i < img_len; ++i)
enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff
STBI_FREE(orig);
return enlarged;
}
static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel)
{
int row;
size_t bytes_per_row = (size_t)w * bytes_per_pixel;
stbi_uc temp[2048];
stbi_uc *bytes = (stbi_uc *)image;
for (row = 0; row < (h>>1); row++) {
stbi_uc *row0 = bytes + row*bytes_per_row;
stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row;
// swap row0 with row1
size_t bytes_left = bytes_per_row;
while (bytes_left) {
size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp);
memcpy(temp, row0, bytes_copy);
memcpy(row0, row1, bytes_copy);
memcpy(row1, temp, bytes_copy);
row0 += bytes_copy;
row1 += bytes_copy;
bytes_left -= bytes_copy;
}
}
}
#ifndef STBI_NO_GIF
static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel)
{
int slice;
int slice_size = w * h * bytes_per_pixel;
stbi_uc *bytes = (stbi_uc *)image;
for (slice = 0; slice < z; ++slice) {
stbi__vertical_flip(bytes, w, h, bytes_per_pixel);
bytes += slice_size;
}
}
#endif
static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi__result_info ri;
void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8);
if (result == NULL)
return NULL;
// it is the responsibility of the loaders to make sure we get either 8 or 16 bit.
STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16);
if (ri.bits_per_channel != 8) {
result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp);
ri.bits_per_channel = 8;
}
// @TODO: move stbi__convert_format to here
if (stbi__vertically_flip_on_load) {
int channels = req_comp ? req_comp : *comp;
stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc));
}
return (unsigned char *) result;
}
static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi__result_info ri;
void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16);
if (result == NULL)
return NULL;
// it is the responsibility of the loaders to make sure we get either 8 or 16 bit.
STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16);
if (ri.bits_per_channel != 16) {
result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp);
ri.bits_per_channel = 16;
}
// @TODO: move stbi__convert_format16 to here
// @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision
if (stbi__vertically_flip_on_load) {
int channels = req_comp ? req_comp : *comp;
stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16));
}
return (stbi__uint16 *) result;
}
#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR)
static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp)
{
if (stbi__vertically_flip_on_load && result != NULL) {
int channels = req_comp ? req_comp : *comp;
stbi__vertical_flip(result, *x, *y, channels * sizeof(float));
}
}
#endif
#ifndef STBI_NO_STDIO
#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8)
STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide);
STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
#endif
#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8)
STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input)
{
return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL);
}
#endif
static FILE *stbi__fopen(char const *filename, char const *mode)
{
FILE *f;
#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8)
wchar_t wMode[64];
wchar_t wFilename[1024];
if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename)/sizeof(*wFilename)))
return 0;
if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode)/sizeof(*wMode)))
return 0;
#if defined(_MSC_VER) && _MSC_VER >= 1400
if (0 != _wfopen_s(&f, wFilename, wMode))
f = 0;
#else
f = _wfopen(wFilename, wMode);
#endif
#elif defined(_MSC_VER) && _MSC_VER >= 1400
if (0 != fopen_s(&f, filename, mode))
f=0;
#else
f = fopen(filename, mode);
#endif
return f;
}
STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp)
{
FILE *f = stbi__fopen(filename, "rb");
unsigned char *result;
if (!f) return stbi__errpuc("can't fopen", "Unable to open file");
result = stbi_load_from_file(f,x,y,comp,req_comp);
fclose(f);
return result;
}
STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
{
unsigned char *result;
stbi__context s;
stbi__start_file(&s,f);
result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp);
if (result) {
// need to 'unget' all the characters in the IO buffer
fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR);
}
return result;
}
STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp)
{
stbi__uint16 *result;
stbi__context s;
stbi__start_file(&s,f);
result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp);
if (result) {
// need to 'unget' all the characters in the IO buffer
fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR);
}
return result;
}
STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
{
FILE *f = stbi__fopen(filename, "rb");
stbi__uint16 *result;
if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file");
result = stbi_load_from_file_16(f,x,y,comp,req_comp);
fclose(f);
return result;
}
#endif //!STBI_NO_STDIO
STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels);
}
STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user);
return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels);
}
STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp);
}
STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp);
}
#ifndef STBI_NO_GIF
STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
{
unsigned char *result;
stbi__context s;
stbi__start_mem(&s,buffer,len);
result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp);
if (stbi__vertically_flip_on_load) {
stbi__vertical_flip_slices( result, *x, *y, *z, *comp );
}
return result;
}
#endif
#ifndef STBI_NO_LINEAR
static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
unsigned char *data;
#ifndef STBI_NO_HDR
if (stbi__hdr_test(s)) {
stbi__result_info ri;
float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri);
if (hdr_data)
stbi__float_postprocess(hdr_data,x,y,comp,req_comp);
return hdr_data;
}
#endif
data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp);
if (data)
return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp);
return stbi__errpf("unknown image type", "Image not of any known type, or corrupt");
}
STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__loadf_main(&s,x,y,comp,req_comp);
}
STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
return stbi__loadf_main(&s,x,y,comp,req_comp);
}
#ifndef STBI_NO_STDIO
STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
{
float *result;
FILE *f = stbi__fopen(filename, "rb");
if (!f) return stbi__errpf("can't fopen", "Unable to open file");
result = stbi_loadf_from_file(f,x,y,comp,req_comp);
fclose(f);
return result;
}
STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_file(&s,f);
return stbi__loadf_main(&s,x,y,comp,req_comp);
}
#endif // !STBI_NO_STDIO
#endif // !STBI_NO_LINEAR
// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is
// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always
// reports false!
STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
{
#ifndef STBI_NO_HDR
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__hdr_test(&s);
#else
STBI_NOTUSED(buffer);
STBI_NOTUSED(len);
return 0;
#endif
}
#ifndef STBI_NO_STDIO
STBIDEF int stbi_is_hdr (char const *filename)
{
FILE *f = stbi__fopen(filename, "rb");
int result=0;
if (f) {
result = stbi_is_hdr_from_file(f);
fclose(f);
}
return result;
}
STBIDEF int stbi_is_hdr_from_file(FILE *f)
{
#ifndef STBI_NO_HDR
long pos = ftell(f);
int res;
stbi__context s;
stbi__start_file(&s,f);
res = stbi__hdr_test(&s);
fseek(f, pos, SEEK_SET);
return res;
#else
STBI_NOTUSED(f);
return 0;
#endif
}
#endif // !STBI_NO_STDIO
STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
{
#ifndef STBI_NO_HDR
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
return stbi__hdr_test(&s);
#else
STBI_NOTUSED(clbk);
STBI_NOTUSED(user);
return 0;
#endif
}
#ifndef STBI_NO_LINEAR
static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f;
STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
#endif
static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f;
STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
//////////////////////////////////////////////////////////////////////////////
//
// Common code used by all image loaders
//
enum
{
STBI__SCAN_load=0,
STBI__SCAN_type,
STBI__SCAN_header
};
static void stbi__refill_buffer(stbi__context *s)
{
int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen);
s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original);
if (n == 0) {
// at end of file, treat same as if from memory, but need to handle case
// where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file
s->read_from_callbacks = 0;
s->img_buffer = s->buffer_start;
s->img_buffer_end = s->buffer_start+1;
*s->img_buffer = 0;
} else {
s->img_buffer = s->buffer_start;
s->img_buffer_end = s->buffer_start + n;
}
}
stbi_inline static stbi_uc stbi__get8(stbi__context *s)
{
if (s->img_buffer < s->img_buffer_end)
return *s->img_buffer++;
if (s->read_from_callbacks) {
stbi__refill_buffer(s);
return *s->img_buffer++;
}
return 0;
}
#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM)
// nothing
#else
stbi_inline static int stbi__at_eof(stbi__context *s)
{
if (s->io.read) {
if (!(s->io.eof)(s->io_user_data)) return 0;
// if feof() is true, check if buffer = end
// special case: we've only got the special 0 character at the end
if (s->read_from_callbacks == 0) return 1;
}
return s->img_buffer >= s->img_buffer_end;
}
#endif
#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC)
// nothing
#else
static void stbi__skip(stbi__context *s, int n)
{
if (n == 0) return; // already there!
if (n < 0) {
s->img_buffer = s->img_buffer_end;
return;
}
if (s->io.read) {
int blen = (int) (s->img_buffer_end - s->img_buffer);
if (blen < n) {
s->img_buffer = s->img_buffer_end;
(s->io.skip)(s->io_user_data, n - blen);
return;
}
}
s->img_buffer += n;
}
#endif
#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM)
// nothing
#else
static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n)
{
if (s->io.read) {
int blen = (int) (s->img_buffer_end - s->img_buffer);
if (blen < n) {
int res, count;
memcpy(buffer, s->img_buffer, blen);
count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen);
res = (count == (n-blen));
s->img_buffer = s->img_buffer_end;
return res;
}
}
if (s->img_buffer+n <= s->img_buffer_end) {
memcpy(buffer, s->img_buffer, n);
s->img_buffer += n;
return 1;
} else
return 0;
}
#endif
#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC)
// nothing
#else
static int stbi__get16be(stbi__context *s)
{
int z = stbi__get8(s);
return (z << 8) + stbi__get8(s);
}
#endif
#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC)
// nothing
#else
static stbi__uint32 stbi__get32be(stbi__context *s)
{
stbi__uint32 z = stbi__get16be(s);
return (z << 16) + stbi__get16be(s);
}
#endif
#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF)
// nothing
#else
static int stbi__get16le(stbi__context *s)
{
int z = stbi__get8(s);
return z + (stbi__get8(s) << 8);
}
#endif
#ifndef STBI_NO_BMP
static stbi__uint32 stbi__get32le(stbi__context *s)
{
stbi__uint32 z = stbi__get16le(s);
z += (stbi__uint32)stbi__get16le(s) << 16;
return z;
}
#endif
#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings
#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM)
// nothing
#else
//////////////////////////////////////////////////////////////////////////////
//
// generic converter from built-in img_n to req_comp
// individual types do this automatically as much as possible (e.g. jpeg
// does all cases internally since it needs to colorspace convert anyway,
// and it never has alpha, so very few cases ). png can automatically
// interleave an alpha=255 channel, but falls back to this for other cases
//
// assume data buffer is malloced, so malloc a new one and free that one
// only failure mode is malloc failing
static stbi_uc stbi__compute_y(int r, int g, int b)
{
return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8);
}
#endif
#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM)
// nothing
#else
static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y)
{
int i,j;
unsigned char *good;
if (req_comp == img_n) return data;
STBI_ASSERT(req_comp >= 1 && req_comp <= 4);
good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0);
if (good == NULL) {
STBI_FREE(data);
return stbi__errpuc("outofmem", "Out of memory");
}
for (j=0; j < (int) y; ++j) {
unsigned char *src = data + j * x * img_n ;
unsigned char *dest = good + j * x * req_comp;
#define STBI__COMBO(a,b) ((a)*8+(b))
#define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b)
// convert source image with img_n components to one with req_comp components;
// avoid switch per pixel, so use switch per scanline and massive macros
switch (STBI__COMBO(img_n, req_comp)) {
STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break;
STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break;
STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break;
STBI__CASE(2,1) { dest[0]=src[0]; } break;
STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break;
STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break;
STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break;
STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break;
STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break;
STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break;
STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break;
STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break;
default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion");
}
#undef STBI__CASE
}
STBI_FREE(data);
return good;
}
#endif
#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD)
// nothing
#else
static stbi__uint16 stbi__compute_y_16(int r, int g, int b)
{
return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8);
}
#endif
#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD)
// nothing
#else
static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y)
{
int i,j;
stbi__uint16 *good;
if (req_comp == img_n) return data;
STBI_ASSERT(req_comp >= 1 && req_comp <= 4);
good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2);
if (good == NULL) {
STBI_FREE(data);
return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory");
}
for (j=0; j < (int) y; ++j) {
stbi__uint16 *src = data + j * x * img_n ;
stbi__uint16 *dest = good + j * x * req_comp;
#define STBI__COMBO(a,b) ((a)*8+(b))
#define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b)
// convert source image with img_n components to one with req_comp components;
// avoid switch per pixel, so use switch per scanline and massive macros
switch (STBI__COMBO(img_n, req_comp)) {
STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break;
STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break;
STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break;
STBI__CASE(2,1) { dest[0]=src[0]; } break;
STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break;
STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break;
STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break;
STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break;
STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break;
STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break;
STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break;
STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break;
default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion");
}
#undef STBI__CASE
}
STBI_FREE(data);
return good;
}
#endif
#ifndef STBI_NO_LINEAR
static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp)
{
int i,k,n;
float *output;
if (!data) return NULL;
output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0);
if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); }
// compute number of non-alpha components
if (comp & 1) n = comp; else n = comp-1;
for (i=0; i < x*y; ++i) {
for (k=0; k < n; ++k) {
output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale);
}
}
if (n < comp) {
for (i=0; i < x*y; ++i) {
output[i*comp + n] = data[i*comp + n]/255.0f;
}
}
STBI_FREE(data);
return output;
}
#endif
#ifndef STBI_NO_HDR
#define stbi__float2int(x) ((int) (x))
static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp)
{
int i,k,n;
stbi_uc *output;
if (!data) return NULL;
output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0);
if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); }
// compute number of non-alpha components
if (comp & 1) n = comp; else n = comp-1;
for (i=0; i < x*y; ++i) {
for (k=0; k < n; ++k) {
float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f;
if (z < 0) z = 0;
if (z > 255) z = 255;
output[i*comp + k] = (stbi_uc) stbi__float2int(z);
}
if (k < comp) {
float z = data[i*comp+k] * 255 + 0.5f;
if (z < 0) z = 0;
if (z > 255) z = 255;
output[i*comp + k] = (stbi_uc) stbi__float2int(z);
}
}
STBI_FREE(data);
return output;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//
// "baseline" JPEG/JFIF decoder
//
// simple implementation
// - doesn't support delayed output of y-dimension
// - simple interface (only one output format: 8-bit interleaved RGB)
// - doesn't try to recover corrupt jpegs
// - doesn't allow partial loading, loading multiple at once
// - still fast on x86 (copying globals into locals doesn't help x86)
// - allocates lots of intermediate memory (full size of all components)
// - non-interleaved case requires this anyway
// - allows good upsampling (see next)
// high-quality
// - upsampled channels are bilinearly interpolated, even across blocks
// - quality integer IDCT derived from IJG's 'slow'
// performance
// - fast huffman; reasonable integer IDCT
// - some SIMD kernels for common paths on targets with SSE2/NEON
// - uses a lot of intermediate memory, could cache poorly
#ifndef STBI_NO_JPEG
// huffman decoding acceleration
#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache
typedef struct
{
stbi_uc fast[1 << FAST_BITS];
// weirdly, repacking this into AoS is a 10% speed loss, instead of a win
stbi__uint16 code[256];
stbi_uc values[256];
stbi_uc size[257];
unsigned int maxcode[18];
int delta[17]; // old 'firstsymbol' - old 'firstcode'
} stbi__huffman;
typedef struct
{
stbi__context *s;
stbi__huffman huff_dc[4];
stbi__huffman huff_ac[4];
stbi__uint16 dequant[4][64];
stbi__int16 fast_ac[4][1 << FAST_BITS];
// sizes for components, interleaved MCUs
int img_h_max, img_v_max;
int img_mcu_x, img_mcu_y;
int img_mcu_w, img_mcu_h;
// definition of jpeg image component
struct
{
int id;
int h,v;
int tq;
int hd,ha;
int dc_pred;
int x,y,w2,h2;
stbi_uc *data;
void *raw_data, *raw_coeff;
stbi_uc *linebuf;
short *coeff; // progressive only
int coeff_w, coeff_h; // number of 8x8 coefficient blocks
} img_comp[4];
stbi__uint32 code_buffer; // jpeg entropy-coded buffer
int code_bits; // number of valid bits
unsigned char marker; // marker seen while filling entropy buffer
int nomore; // flag if we saw a marker so must stop
int progressive;
int spec_start;
int spec_end;
int succ_high;
int succ_low;
int eob_run;
int jfif;
int app14_color_transform; // Adobe APP14 tag
int rgb;
int scan_n, order[4];
int restart_interval, todo;
// kernels
void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]);
void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step);
stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs);
} stbi__jpeg;
static int stbi__build_huffman(stbi__huffman *h, int *count)
{
int i,j,k=0;
unsigned int code;
// build size list for each symbol (from JPEG spec)
for (i=0; i < 16; ++i)
for (j=0; j < count[i]; ++j)
h->size[k++] = (stbi_uc) (i+1);
h->size[k] = 0;
// compute actual symbols (from jpeg spec)
code = 0;
k = 0;
for(j=1; j <= 16; ++j) {
// compute delta to add to code to compute symbol id
h->delta[j] = k - code;
if (h->size[k] == j) {
while (h->size[k] == j)
h->code[k++] = (stbi__uint16) (code++);
if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG");
}
// compute largest code + 1 for this size, preshifted as needed later
h->maxcode[j] = code << (16-j);
code <<= 1;
}
h->maxcode[j] = 0xffffffff;
// build non-spec acceleration table; 255 is flag for not-accelerated
memset(h->fast, 255, 1 << FAST_BITS);
for (i=0; i < k; ++i) {
int s = h->size[i];
if (s <= FAST_BITS) {
int c = h->code[i] << (FAST_BITS-s);
int m = 1 << (FAST_BITS-s);
for (j=0; j < m; ++j) {
h->fast[c+j] = (stbi_uc) i;
}
}
}
return 1;
}
// build a table that decodes both magnitude and value of small ACs in
// one go.
static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h)
{
int i;
for (i=0; i < (1 << FAST_BITS); ++i) {
stbi_uc fast = h->fast[i];
fast_ac[i] = 0;
if (fast < 255) {
int rs = h->values[fast];
int run = (rs >> 4) & 15;
int magbits = rs & 15;
int len = h->size[fast];
if (magbits && len + magbits <= FAST_BITS) {
// magnitude code followed by receive_extend code
int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits);
int m = 1 << (magbits - 1);
if (k < m) k += (~0U << magbits) + 1;
// if the result is small enough, we can fit it in fast_ac table
if (k >= -128 && k <= 127)
fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits));
}
}
}
}
static void stbi__grow_buffer_unsafe(stbi__jpeg *j)
{
do {
unsigned int b = j->nomore ? 0 : stbi__get8(j->s);
if (b == 0xff) {
int c = stbi__get8(j->s);
while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes
if (c != 0) {
j->marker = (unsigned char) c;
j->nomore = 1;
return;
}
}
j->code_buffer |= b << (24 - j->code_bits);
j->code_bits += 8;
} while (j->code_bits <= 24);
}
// (1 << n) - 1
static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535};
// decode a jpeg huffman value from the bitstream
stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h)
{
unsigned int temp;
int c,k;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
// look at the top FAST_BITS and determine what symbol ID it is,
// if the code is <= FAST_BITS
c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
k = h->fast[c];
if (k < 255) {
int s = h->size[k];
if (s > j->code_bits)
return -1;
j->code_buffer <<= s;
j->code_bits -= s;
return h->values[k];
}
// naive test is to shift the code_buffer down so k bits are
// valid, then test against maxcode. To speed this up, we've
// preshifted maxcode left so that it has (16-k) 0s at the
// end; in other words, regardless of the number of bits, it
// wants to be compared against something shifted to have 16;
// that way we don't need to shift inside the loop.
temp = j->code_buffer >> 16;
for (k=FAST_BITS+1 ; ; ++k)
if (temp < h->maxcode[k])
break;
if (k == 17) {
// error! code not found
j->code_bits -= 16;
return -1;
}
if (k > j->code_bits)
return -1;
// convert the huffman code to the symbol id
c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k];
STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]);
// convert the id to a symbol
j->code_bits -= k;
j->code_buffer <<= k;
return h->values[c];
}
// bias[n] = (-1<<n) + 1
static const int stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767};
// combined JPEG 'receive' and JPEG 'extend', since baseline
// always extends everything it receives.
stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n)
{
unsigned int k;
int sgn;
if (j->code_bits < n) stbi__grow_buffer_unsafe(j);
sgn = j->code_buffer >> 31; // sign bit always in MSB; 0 if MSB clear (positive), 1 if MSB set (negative)
k = stbi_lrot(j->code_buffer, n);
j->code_buffer = k & ~stbi__bmask[n];
k &= stbi__bmask[n];
j->code_bits -= n;
return k + (stbi__jbias[n] & (sgn - 1));
}
// get some unsigned bits
stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n)
{
unsigned int k;
if (j->code_bits < n) stbi__grow_buffer_unsafe(j);
k = stbi_lrot(j->code_buffer, n);
j->code_buffer = k & ~stbi__bmask[n];
k &= stbi__bmask[n];
j->code_bits -= n;
return k;
}
stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j)
{
unsigned int k;
if (j->code_bits < 1) stbi__grow_buffer_unsafe(j);
k = j->code_buffer;
j->code_buffer <<= 1;
--j->code_bits;
return k & 0x80000000;
}
// given a value that's at position X in the zigzag stream,
// where does it appear in the 8x8 matrix coded as row-major?
static const stbi_uc stbi__jpeg_dezigzag[64+15] =
{
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63,
// let corrupt input sample past end
63, 63, 63, 63, 63, 63, 63, 63,
63, 63, 63, 63, 63, 63, 63
};
// decode one 64-entry block--
static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant)
{
int diff,dc,k;
int t;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
t = stbi__jpeg_huff_decode(j, hdc);
if (t < 0 || t > 15) return stbi__err("bad huffman code","Corrupt JPEG");
// 0 all the ac values now so we can do it 32-bits at a time
memset(data,0,64*sizeof(data[0]));
diff = t ? stbi__extend_receive(j, t) : 0;
dc = j->img_comp[b].dc_pred + diff;
j->img_comp[b].dc_pred = dc;
data[0] = (short) (dc * dequant[0]);
// decode AC components, see JPEG spec
k = 1;
do {
unsigned int zig;
int c,r,s;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
r = fac[c];
if (r) { // fast-AC path
k += (r >> 4) & 15; // run
s = r & 15; // combined length
j->code_buffer <<= s;
j->code_bits -= s;
// decode into unzigzag'd location
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) ((r >> 8) * dequant[zig]);
} else {
int rs = stbi__jpeg_huff_decode(j, hac);
if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
s = rs & 15;
r = rs >> 4;
if (s == 0) {
if (rs != 0xf0) break; // end block
k += 16;
} else {
k += r;
// decode into unzigzag'd location
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]);
}
}
} while (k < 64);
return 1;
}
static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b)
{
int diff,dc;
int t;
if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG");
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
if (j->succ_high == 0) {
// first scan for DC coefficient, must be first
memset(data,0,64*sizeof(data[0])); // 0 all the ac values now
t = stbi__jpeg_huff_decode(j, hdc);
if (t < 0 || t > 15) return stbi__err("can't merge dc and ac", "Corrupt JPEG");
diff = t ? stbi__extend_receive(j, t) : 0;
dc = j->img_comp[b].dc_pred + diff;
j->img_comp[b].dc_pred = dc;
data[0] = (short) (dc * (1 << j->succ_low));
} else {
// refinement scan for DC coefficient
if (stbi__jpeg_get_bit(j))
data[0] += (short) (1 << j->succ_low);
}
return 1;
}
// @OPTIMIZE: store non-zigzagged during the decode passes,
// and only de-zigzag when dequantizing
static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac)
{
int k;
if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG");
if (j->succ_high == 0) {
int shift = j->succ_low;
if (j->eob_run) {
--j->eob_run;
return 1;
}
k = j->spec_start;
do {
unsigned int zig;
int c,r,s;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
r = fac[c];
if (r) { // fast-AC path
k += (r >> 4) & 15; // run
s = r & 15; // combined length
j->code_buffer <<= s;
j->code_bits -= s;
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) ((r >> 8) * (1 << shift));
} else {
int rs = stbi__jpeg_huff_decode(j, hac);
if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
s = rs & 15;
r = rs >> 4;
if (s == 0) {
if (r < 15) {
j->eob_run = (1 << r);
if (r)
j->eob_run += stbi__jpeg_get_bits(j, r);
--j->eob_run;
break;
}
k += 16;
} else {
k += r;
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) (stbi__extend_receive(j,s) * (1 << shift));
}
}
} while (k <= j->spec_end);
} else {
// refinement scan for these AC coefficients
short bit = (short) (1 << j->succ_low);
if (j->eob_run) {
--j->eob_run;
for (k = j->spec_start; k <= j->spec_end; ++k) {
short *p = &data[stbi__jpeg_dezigzag[k]];
if (*p != 0)
if (stbi__jpeg_get_bit(j))
if ((*p & bit)==0) {
if (*p > 0)
*p += bit;
else
*p -= bit;
}
}
} else {
k = j->spec_start;
do {
int r,s;
int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh
if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
s = rs & 15;
r = rs >> 4;
if (s == 0) {
if (r < 15) {
j->eob_run = (1 << r) - 1;
if (r)
j->eob_run += stbi__jpeg_get_bits(j, r);
r = 64; // force end of block
} else {
// r=15 s=0 should write 16 0s, so we just do
// a run of 15 0s and then write s (which is 0),
// so we don't have to do anything special here
}
} else {
if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG");
// sign bit
if (stbi__jpeg_get_bit(j))
s = bit;
else
s = -bit;
}
// advance by r
while (k <= j->spec_end) {
short *p = &data[stbi__jpeg_dezigzag[k++]];
if (*p != 0) {
if (stbi__jpeg_get_bit(j))
if ((*p & bit)==0) {
if (*p > 0)
*p += bit;
else
*p -= bit;
}
} else {
if (r == 0) {
*p = (short) s;
break;
}
--r;
}
}
} while (k <= j->spec_end);
}
}
return 1;
}
// take a -128..127 value and stbi__clamp it and convert to 0..255
stbi_inline static stbi_uc stbi__clamp(int x)
{
// trick to use a single test to catch both cases
if ((unsigned int) x > 255) {
if (x < 0) return 0;
if (x > 255) return 255;
}
return (stbi_uc) x;
}
#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5)))
#define stbi__fsh(x) ((x) * 4096)
// derived from jidctint -- DCT_ISLOW
#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \
int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \
p2 = s2; \
p3 = s6; \
p1 = (p2+p3) * stbi__f2f(0.5411961f); \
t2 = p1 + p3*stbi__f2f(-1.847759065f); \
t3 = p1 + p2*stbi__f2f( 0.765366865f); \
p2 = s0; \
p3 = s4; \
t0 = stbi__fsh(p2+p3); \
t1 = stbi__fsh(p2-p3); \
x0 = t0+t3; \
x3 = t0-t3; \
x1 = t1+t2; \
x2 = t1-t2; \
t0 = s7; \
t1 = s5; \
t2 = s3; \
t3 = s1; \
p3 = t0+t2; \
p4 = t1+t3; \
p1 = t0+t3; \
p2 = t1+t2; \
p5 = (p3+p4)*stbi__f2f( 1.175875602f); \
t0 = t0*stbi__f2f( 0.298631336f); \
t1 = t1*stbi__f2f( 2.053119869f); \
t2 = t2*stbi__f2f( 3.072711026f); \
t3 = t3*stbi__f2f( 1.501321110f); \
p1 = p5 + p1*stbi__f2f(-0.899976223f); \
p2 = p5 + p2*stbi__f2f(-2.562915447f); \
p3 = p3*stbi__f2f(-1.961570560f); \
p4 = p4*stbi__f2f(-0.390180644f); \
t3 += p1+p4; \
t2 += p2+p3; \
t1 += p2+p4; \
t0 += p1+p3;
static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64])
{
int i,val[64],*v=val;
stbi_uc *o;
short *d = data;
// columns
for (i=0; i < 8; ++i,++d, ++v) {
// if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing
if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0
&& d[40]==0 && d[48]==0 && d[56]==0) {
// no shortcut 0 seconds
// (1|2|3|4|5|6|7)==0 0 seconds
// all separate -0.047 seconds
// 1 && 2|3 && 4|5 && 6|7: -0.047 seconds
int dcterm = d[0]*4;
v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm;
} else {
STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56])
// constants scaled things up by 1<<12; let's bring them back
// down, but keep 2 extra bits of precision
x0 += 512; x1 += 512; x2 += 512; x3 += 512;
v[ 0] = (x0+t3) >> 10;
v[56] = (x0-t3) >> 10;
v[ 8] = (x1+t2) >> 10;
v[48] = (x1-t2) >> 10;
v[16] = (x2+t1) >> 10;
v[40] = (x2-t1) >> 10;
v[24] = (x3+t0) >> 10;
v[32] = (x3-t0) >> 10;
}
}
for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) {
// no fast case since the first 1D IDCT spread components out
STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7])
// constants scaled things up by 1<<12, plus we had 1<<2 from first
// loop, plus horizontal and vertical each scale by sqrt(8) so together
// we've got an extra 1<<3, so 1<<17 total we need to remove.
// so we want to round that, which means adding 0.5 * 1<<17,
// aka 65536. Also, we'll end up with -128 to 127 that we want
// to encode as 0..255 by adding 128, so we'll add that before the shift
x0 += 65536 + (128<<17);
x1 += 65536 + (128<<17);
x2 += 65536 + (128<<17);
x3 += 65536 + (128<<17);
// tried computing the shifts into temps, or'ing the temps to see
// if any were out of range, but that was slower
o[0] = stbi__clamp((x0+t3) >> 17);
o[7] = stbi__clamp((x0-t3) >> 17);
o[1] = stbi__clamp((x1+t2) >> 17);
o[6] = stbi__clamp((x1-t2) >> 17);
o[2] = stbi__clamp((x2+t1) >> 17);
o[5] = stbi__clamp((x2-t1) >> 17);
o[3] = stbi__clamp((x3+t0) >> 17);
o[4] = stbi__clamp((x3-t0) >> 17);
}
}
#ifdef STBI_SSE2
// sse2 integer IDCT. not the fastest possible implementation but it
// produces bit-identical results to the generic C version so it's
// fully "transparent".
static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64])
{
// This is constructed to match our regular (generic) integer IDCT exactly.
__m128i row0, row1, row2, row3, row4, row5, row6, row7;
__m128i tmp;
// dot product constant: even elems=x, odd elems=y
#define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y))
// out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit)
// out(1) = c1[even]*x + c1[odd]*y
#define dct_rot(out0,out1, x,y,c0,c1) \
__m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \
__m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \
__m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \
__m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \
__m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \
__m128i out1##_h = _mm_madd_epi16(c0##hi, c1)
// out = in << 12 (in 16-bit, out 32-bit)
#define dct_widen(out, in) \
__m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \
__m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4)
// wide add
#define dct_wadd(out, a, b) \
__m128i out##_l = _mm_add_epi32(a##_l, b##_l); \
__m128i out##_h = _mm_add_epi32(a##_h, b##_h)
// wide sub
#define dct_wsub(out, a, b) \
__m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \
__m128i out##_h = _mm_sub_epi32(a##_h, b##_h)
// butterfly a/b, add bias, then shift by "s" and pack
#define dct_bfly32o(out0, out1, a,b,bias,s) \
{ \
__m128i abiased_l = _mm_add_epi32(a##_l, bias); \
__m128i abiased_h = _mm_add_epi32(a##_h, bias); \
dct_wadd(sum, abiased, b); \
dct_wsub(dif, abiased, b); \
out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \
out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \
}
// 8-bit interleave step (for transposes)
#define dct_interleave8(a, b) \
tmp = a; \
a = _mm_unpacklo_epi8(a, b); \
b = _mm_unpackhi_epi8(tmp, b)
// 16-bit interleave step (for transposes)
#define dct_interleave16(a, b) \
tmp = a; \
a = _mm_unpacklo_epi16(a, b); \
b = _mm_unpackhi_epi16(tmp, b)
#define dct_pass(bias,shift) \
{ \
/* even part */ \
dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \
__m128i sum04 = _mm_add_epi16(row0, row4); \
__m128i dif04 = _mm_sub_epi16(row0, row4); \
dct_widen(t0e, sum04); \
dct_widen(t1e, dif04); \
dct_wadd(x0, t0e, t3e); \
dct_wsub(x3, t0e, t3e); \
dct_wadd(x1, t1e, t2e); \
dct_wsub(x2, t1e, t2e); \
/* odd part */ \
dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \
dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \
__m128i sum17 = _mm_add_epi16(row1, row7); \
__m128i sum35 = _mm_add_epi16(row3, row5); \
dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \
dct_wadd(x4, y0o, y4o); \
dct_wadd(x5, y1o, y5o); \
dct_wadd(x6, y2o, y5o); \
dct_wadd(x7, y3o, y4o); \
dct_bfly32o(row0,row7, x0,x7,bias,shift); \
dct_bfly32o(row1,row6, x1,x6,bias,shift); \
dct_bfly32o(row2,row5, x2,x5,bias,shift); \
dct_bfly32o(row3,row4, x3,x4,bias,shift); \
}
__m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f));
__m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f));
__m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f));
__m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f));
__m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f));
__m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f));
__m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f));
__m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f));
// rounding biases in column/row passes, see stbi__idct_block for explanation.
__m128i bias_0 = _mm_set1_epi32(512);
__m128i bias_1 = _mm_set1_epi32(65536 + (128<<17));
// load
row0 = _mm_load_si128((const __m128i *) (data + 0*8));
row1 = _mm_load_si128((const __m128i *) (data + 1*8));
row2 = _mm_load_si128((const __m128i *) (data + 2*8));
row3 = _mm_load_si128((const __m128i *) (data + 3*8));
row4 = _mm_load_si128((const __m128i *) (data + 4*8));
row5 = _mm_load_si128((const __m128i *) (data + 5*8));
row6 = _mm_load_si128((const __m128i *) (data + 6*8));
row7 = _mm_load_si128((const __m128i *) (data + 7*8));
// column pass
dct_pass(bias_0, 10);
{
// 16bit 8x8 transpose pass 1
dct_interleave16(row0, row4);
dct_interleave16(row1, row5);
dct_interleave16(row2, row6);
dct_interleave16(row3, row7);
// transpose pass 2
dct_interleave16(row0, row2);
dct_interleave16(row1, row3);
dct_interleave16(row4, row6);
dct_interleave16(row5, row7);
// transpose pass 3
dct_interleave16(row0, row1);
dct_interleave16(row2, row3);
dct_interleave16(row4, row5);
dct_interleave16(row6, row7);
}
// row pass
dct_pass(bias_1, 17);
{
// pack
__m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7
__m128i p1 = _mm_packus_epi16(row2, row3);
__m128i p2 = _mm_packus_epi16(row4, row5);
__m128i p3 = _mm_packus_epi16(row6, row7);
// 8bit 8x8 transpose pass 1
dct_interleave8(p0, p2); // a0e0a1e1...
dct_interleave8(p1, p3); // c0g0c1g1...
// transpose pass 2
dct_interleave8(p0, p1); // a0c0e0g0...
dct_interleave8(p2, p3); // b0d0f0h0...
// transpose pass 3
dct_interleave8(p0, p2); // a0b0c0d0...
dct_interleave8(p1, p3); // a4b4c4d4...
// store
_mm_storel_epi64((__m128i *) out, p0); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride;
_mm_storel_epi64((__m128i *) out, p2); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride;
_mm_storel_epi64((__m128i *) out, p1); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride;
_mm_storel_epi64((__m128i *) out, p3); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e));
}
#undef dct_const
#undef dct_rot
#undef dct_widen
#undef dct_wadd
#undef dct_wsub
#undef dct_bfly32o
#undef dct_interleave8
#undef dct_interleave16
#undef dct_pass
}
#endif // STBI_SSE2
#ifdef STBI_NEON
// NEON integer IDCT. should produce bit-identical
// results to the generic C version.
static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64])
{
int16x8_t row0, row1, row2, row3, row4, row5, row6, row7;
int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f));
int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f));
int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f));
int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f));
int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f));
int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f));
int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f));
int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f));
int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f));
int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f));
int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f));
int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f));
#define dct_long_mul(out, inq, coeff) \
int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \
int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff)
#define dct_long_mac(out, acc, inq, coeff) \
int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \
int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff)
#define dct_widen(out, inq) \
int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \
int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12)
// wide add
#define dct_wadd(out, a, b) \
int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \
int32x4_t out##_h = vaddq_s32(a##_h, b##_h)
// wide sub
#define dct_wsub(out, a, b) \
int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \
int32x4_t out##_h = vsubq_s32(a##_h, b##_h)
// butterfly a/b, then shift using "shiftop" by "s" and pack
#define dct_bfly32o(out0,out1, a,b,shiftop,s) \
{ \
dct_wadd(sum, a, b); \
dct_wsub(dif, a, b); \
out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \
out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \
}
#define dct_pass(shiftop, shift) \
{ \
/* even part */ \
int16x8_t sum26 = vaddq_s16(row2, row6); \
dct_long_mul(p1e, sum26, rot0_0); \
dct_long_mac(t2e, p1e, row6, rot0_1); \
dct_long_mac(t3e, p1e, row2, rot0_2); \
int16x8_t sum04 = vaddq_s16(row0, row4); \
int16x8_t dif04 = vsubq_s16(row0, row4); \
dct_widen(t0e, sum04); \
dct_widen(t1e, dif04); \
dct_wadd(x0, t0e, t3e); \
dct_wsub(x3, t0e, t3e); \
dct_wadd(x1, t1e, t2e); \
dct_wsub(x2, t1e, t2e); \
/* odd part */ \
int16x8_t sum15 = vaddq_s16(row1, row5); \
int16x8_t sum17 = vaddq_s16(row1, row7); \
int16x8_t sum35 = vaddq_s16(row3, row5); \
int16x8_t sum37 = vaddq_s16(row3, row7); \
int16x8_t sumodd = vaddq_s16(sum17, sum35); \
dct_long_mul(p5o, sumodd, rot1_0); \
dct_long_mac(p1o, p5o, sum17, rot1_1); \
dct_long_mac(p2o, p5o, sum35, rot1_2); \
dct_long_mul(p3o, sum37, rot2_0); \
dct_long_mul(p4o, sum15, rot2_1); \
dct_wadd(sump13o, p1o, p3o); \
dct_wadd(sump24o, p2o, p4o); \
dct_wadd(sump23o, p2o, p3o); \
dct_wadd(sump14o, p1o, p4o); \
dct_long_mac(x4, sump13o, row7, rot3_0); \
dct_long_mac(x5, sump24o, row5, rot3_1); \
dct_long_mac(x6, sump23o, row3, rot3_2); \
dct_long_mac(x7, sump14o, row1, rot3_3); \
dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \
dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \
dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \
dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \
}
// load
row0 = vld1q_s16(data + 0*8);
row1 = vld1q_s16(data + 1*8);
row2 = vld1q_s16(data + 2*8);
row3 = vld1q_s16(data + 3*8);
row4 = vld1q_s16(data + 4*8);
row5 = vld1q_s16(data + 5*8);
row6 = vld1q_s16(data + 6*8);
row7 = vld1q_s16(data + 7*8);
// add DC bias
row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0));
// column pass
dct_pass(vrshrn_n_s32, 10);
// 16bit 8x8 transpose
{
// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively.
// whether compilers actually get this is another story, sadly.
#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; }
#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); }
#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); }
// pass 1
dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6
dct_trn16(row2, row3);
dct_trn16(row4, row5);
dct_trn16(row6, row7);
// pass 2
dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4
dct_trn32(row1, row3);
dct_trn32(row4, row6);
dct_trn32(row5, row7);
// pass 3
dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0
dct_trn64(row1, row5);
dct_trn64(row2, row6);
dct_trn64(row3, row7);
#undef dct_trn16
#undef dct_trn32
#undef dct_trn64
}
// row pass
// vrshrn_n_s32 only supports shifts up to 16, we need
// 17. so do a non-rounding shift of 16 first then follow
// up with a rounding shift by 1.
dct_pass(vshrn_n_s32, 16);
{
// pack and round
uint8x8_t p0 = vqrshrun_n_s16(row0, 1);
uint8x8_t p1 = vqrshrun_n_s16(row1, 1);
uint8x8_t p2 = vqrshrun_n_s16(row2, 1);
uint8x8_t p3 = vqrshrun_n_s16(row3, 1);
uint8x8_t p4 = vqrshrun_n_s16(row4, 1);
uint8x8_t p5 = vqrshrun_n_s16(row5, 1);
uint8x8_t p6 = vqrshrun_n_s16(row6, 1);
uint8x8_t p7 = vqrshrun_n_s16(row7, 1);
// again, these can translate into one instruction, but often don't.
#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; }
#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); }
#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); }
// sadly can't use interleaved stores here since we only write
// 8 bytes to each scan line!
// 8x8 8-bit transpose pass 1
dct_trn8_8(p0, p1);
dct_trn8_8(p2, p3);
dct_trn8_8(p4, p5);
dct_trn8_8(p6, p7);
// pass 2
dct_trn8_16(p0, p2);
dct_trn8_16(p1, p3);
dct_trn8_16(p4, p6);
dct_trn8_16(p5, p7);
// pass 3
dct_trn8_32(p0, p4);
dct_trn8_32(p1, p5);
dct_trn8_32(p2, p6);
dct_trn8_32(p3, p7);
// store
vst1_u8(out, p0); out += out_stride;
vst1_u8(out, p1); out += out_stride;
vst1_u8(out, p2); out += out_stride;
vst1_u8(out, p3); out += out_stride;
vst1_u8(out, p4); out += out_stride;
vst1_u8(out, p5); out += out_stride;
vst1_u8(out, p6); out += out_stride;
vst1_u8(out, p7);
#undef dct_trn8_8
#undef dct_trn8_16
#undef dct_trn8_32
}
#undef dct_long_mul
#undef dct_long_mac
#undef dct_widen
#undef dct_wadd
#undef dct_wsub
#undef dct_bfly32o
#undef dct_pass
}
#endif // STBI_NEON
#define STBI__MARKER_none 0xff
// if there's a pending marker from the entropy stream, return that
// otherwise, fetch from the stream and get a marker. if there's no
// marker, return 0xff, which is never a valid marker value
static stbi_uc stbi__get_marker(stbi__jpeg *j)
{
stbi_uc x;
if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; }
x = stbi__get8(j->s);
if (x != 0xff) return STBI__MARKER_none;
while (x == 0xff)
x = stbi__get8(j->s); // consume repeated 0xff fill bytes
return x;
}
// in each scan, we'll have scan_n components, and the order
// of the components is specified by order[]
#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7)
// after a restart interval, stbi__jpeg_reset the entropy decoder and
// the dc prediction
static void stbi__jpeg_reset(stbi__jpeg *j)
{
j->code_bits = 0;
j->code_buffer = 0;
j->nomore = 0;
j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0;
j->marker = STBI__MARKER_none;
j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff;
j->eob_run = 0;
// no more than 1<<31 MCUs if no restart_interal? that's plenty safe,
// since we don't even allow 1<<30 pixels
}
static int stbi__parse_entropy_coded_data(stbi__jpeg *z)
{
stbi__jpeg_reset(z);
if (!z->progressive) {
if (z->scan_n == 1) {
int i,j;
STBI_SIMD_ALIGN(short, data[64]);
int n = z->order[0];
// non-interleaved data, we just need to process one block at a time,
// in trivial scanline order
// number of blocks to do just depends on how many actual "pixels" this
// component has, independent of interleaved MCU blocking and such
int w = (z->img_comp[n].x+7) >> 3;
int h = (z->img_comp[n].y+7) >> 3;
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
int ha = z->img_comp[n].ha;
if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0;
z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);
// every data block is an MCU, so countdown the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
// if it's NOT a restart, then just bail, so we get corrupt data
// rather than no data
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
} else { // interleaved
int i,j,k,x,y;
STBI_SIMD_ALIGN(short, data[64]);
for (j=0; j < z->img_mcu_y; ++j) {
for (i=0; i < z->img_mcu_x; ++i) {
// scan an interleaved mcu... process scan_n components in order
for (k=0; k < z->scan_n; ++k) {
int n = z->order[k];
// scan out an mcu's worth of this component; that's just determined
// by the basic H and V specified for the component
for (y=0; y < z->img_comp[n].v; ++y) {
for (x=0; x < z->img_comp[n].h; ++x) {
int x2 = (i*z->img_comp[n].h + x)*8;
int y2 = (j*z->img_comp[n].v + y)*8;
int ha = z->img_comp[n].ha;
if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0;
z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data);
}
}
}
// after all interleaved components, that's an interleaved MCU,
// so now count down the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
}
} else {
if (z->scan_n == 1) {
int i,j;
int n = z->order[0];
// non-interleaved data, we just need to process one block at a time,
// in trivial scanline order
// number of blocks to do just depends on how many actual "pixels" this
// component has, independent of interleaved MCU blocking and such
int w = (z->img_comp[n].x+7) >> 3;
int h = (z->img_comp[n].y+7) >> 3;
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);
if (z->spec_start == 0) {
if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))
return 0;
} else {
int ha = z->img_comp[n].ha;
if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha]))
return 0;
}
// every data block is an MCU, so countdown the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
} else { // interleaved
int i,j,k,x,y;
for (j=0; j < z->img_mcu_y; ++j) {
for (i=0; i < z->img_mcu_x; ++i) {
// scan an interleaved mcu... process scan_n components in order
for (k=0; k < z->scan_n; ++k) {
int n = z->order[k];
// scan out an mcu's worth of this component; that's just determined
// by the basic H and V specified for the component
for (y=0; y < z->img_comp[n].v; ++y) {
for (x=0; x < z->img_comp[n].h; ++x) {
int x2 = (i*z->img_comp[n].h + x);
int y2 = (j*z->img_comp[n].v + y);
short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w);
if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))
return 0;
}
}
}
// after all interleaved components, that's an interleaved MCU,
// so now count down the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
}
}
}
static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant)
{
int i;
for (i=0; i < 64; ++i)
data[i] *= dequant[i];
}
static void stbi__jpeg_finish(stbi__jpeg *z)
{
if (z->progressive) {
// dequantize and idct the data
int i,j,n;
for (n=0; n < z->s->img_n; ++n) {
int w = (z->img_comp[n].x+7) >> 3;
int h = (z->img_comp[n].y+7) >> 3;
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);
stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]);
z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);
}
}
}
}
}
static int stbi__process_marker(stbi__jpeg *z, int m)
{
int L;
switch (m) {
case STBI__MARKER_none: // no marker found
return stbi__err("expected marker","Corrupt JPEG");
case 0xDD: // DRI - specify restart interval
if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG");
z->restart_interval = stbi__get16be(z->s);
return 1;
case 0xDB: // DQT - define quantization table
L = stbi__get16be(z->s)-2;
while (L > 0) {
int q = stbi__get8(z->s);
int p = q >> 4, sixteen = (p != 0);
int t = q & 15,i;
if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG");
if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG");
for (i=0; i < 64; ++i)
z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s));
L -= (sixteen ? 129 : 65);
}
return L==0;
case 0xC4: // DHT - define huffman table
L = stbi__get16be(z->s)-2;
while (L > 0) {
stbi_uc *v;
int sizes[16],i,n=0;
int q = stbi__get8(z->s);
int tc = q >> 4;
int th = q & 15;
if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG");
for (i=0; i < 16; ++i) {
sizes[i] = stbi__get8(z->s);
n += sizes[i];
}
L -= 17;
if (tc == 0) {
if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0;
v = z->huff_dc[th].values;
} else {
if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0;
v = z->huff_ac[th].values;
}
for (i=0; i < n; ++i)
v[i] = stbi__get8(z->s);
if (tc != 0)
stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th);
L -= n;
}
return L==0;
}
// check for comment block or APP blocks
if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) {
L = stbi__get16be(z->s);
if (L < 2) {
if (m == 0xFE)
return stbi__err("bad COM len","Corrupt JPEG");
else
return stbi__err("bad APP len","Corrupt JPEG");
}
L -= 2;
if (m == 0xE0 && L >= 5) { // JFIF APP0 segment
static const unsigned char tag[5] = {'J','F','I','F','\0'};
int ok = 1;
int i;
for (i=0; i < 5; ++i)
if (stbi__get8(z->s) != tag[i])
ok = 0;
L -= 5;
if (ok)
z->jfif = 1;
} else if (m == 0xEE && L >= 12) { // Adobe APP14 segment
static const unsigned char tag[6] = {'A','d','o','b','e','\0'};
int ok = 1;
int i;
for (i=0; i < 6; ++i)
if (stbi__get8(z->s) != tag[i])
ok = 0;
L -= 6;
if (ok) {
stbi__get8(z->s); // version
stbi__get16be(z->s); // flags0
stbi__get16be(z->s); // flags1
z->app14_color_transform = stbi__get8(z->s); // color transform
L -= 6;
}
}
stbi__skip(z->s, L);
return 1;
}
return stbi__err("unknown marker","Corrupt JPEG");
}
// after we see SOS
static int stbi__process_scan_header(stbi__jpeg *z)
{
int i;
int Ls = stbi__get16be(z->s);
z->scan_n = stbi__get8(z->s);
if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG");
if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG");
for (i=0; i < z->scan_n; ++i) {
int id = stbi__get8(z->s), which;
int q = stbi__get8(z->s);
for (which = 0; which < z->s->img_n; ++which)
if (z->img_comp[which].id == id)
break;
if (which == z->s->img_n) return 0; // no match
z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG");
z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG");
z->order[i] = which;
}
{
int aa;
z->spec_start = stbi__get8(z->s);
z->spec_end = stbi__get8(z->s); // should be 63, but might be 0
aa = stbi__get8(z->s);
z->succ_high = (aa >> 4);
z->succ_low = (aa & 15);
if (z->progressive) {
if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13)
return stbi__err("bad SOS", "Corrupt JPEG");
} else {
if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG");
if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG");
z->spec_end = 63;
}
}
return 1;
}
static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why)
{
int i;
for (i=0; i < ncomp; ++i) {
if (z->img_comp[i].raw_data) {
STBI_FREE(z->img_comp[i].raw_data);
z->img_comp[i].raw_data = NULL;
z->img_comp[i].data = NULL;
}
if (z->img_comp[i].raw_coeff) {
STBI_FREE(z->img_comp[i].raw_coeff);
z->img_comp[i].raw_coeff = 0;
z->img_comp[i].coeff = 0;
}
if (z->img_comp[i].linebuf) {
STBI_FREE(z->img_comp[i].linebuf);
z->img_comp[i].linebuf = NULL;
}
}
return why;
}
static int stbi__process_frame_header(stbi__jpeg *z, int scan)
{
stbi__context *s = z->s;
int Lf,p,i,q, h_max=1,v_max=1,c;
Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG
p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline
s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG
s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires
if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)");
if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)");
c = stbi__get8(s);
if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG");
s->img_n = c;
for (i=0; i < c; ++i) {
z->img_comp[i].data = NULL;
z->img_comp[i].linebuf = NULL;
}
if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG");
z->rgb = 0;
for (i=0; i < s->img_n; ++i) {
static const unsigned char rgb[3] = { 'R', 'G', 'B' };
z->img_comp[i].id = stbi__get8(s);
if (s->img_n == 3 && z->img_comp[i].id == rgb[i])
++z->rgb;
q = stbi__get8(s);
z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG");
z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG");
z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG");
}
if (scan != STBI__SCAN_load) return 1;
if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode");
for (i=0; i < s->img_n; ++i) {
if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h;
if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v;
}
// compute interleaved mcu info
z->img_h_max = h_max;
z->img_v_max = v_max;
z->img_mcu_w = h_max * 8;
z->img_mcu_h = v_max * 8;
// these sizes can't be more than 17 bits
z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w;
z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h;
for (i=0; i < s->img_n; ++i) {
// number of effective pixels (e.g. for non-interleaved MCU)
z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max;
z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max;
// to simplify generation, we'll allocate enough memory to decode
// the bogus oversized data from using interleaved MCUs and their
// big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't
// discard the extra data until colorspace conversion
//
// img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier)
// so these muls can't overflow with 32-bit ints (which we require)
z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8;
z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8;
z->img_comp[i].coeff = 0;
z->img_comp[i].raw_coeff = 0;
z->img_comp[i].linebuf = NULL;
z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15);
if (z->img_comp[i].raw_data == NULL)
return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory"));
// align blocks for idct using mmx/sse
z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15);
if (z->progressive) {
// w2, h2 are multiples of 8 (see above)
z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8;
z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8;
z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15);
if (z->img_comp[i].raw_coeff == NULL)
return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory"));
z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15);
}
}
return 1;
}
// use comparisons since in some cases we handle more than one case (e.g. SOF)
#define stbi__DNL(x) ((x) == 0xdc)
#define stbi__SOI(x) ((x) == 0xd8)
#define stbi__EOI(x) ((x) == 0xd9)
#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2)
#define stbi__SOS(x) ((x) == 0xda)
#define stbi__SOF_progressive(x) ((x) == 0xc2)
static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan)
{
int m;
z->jfif = 0;
z->app14_color_transform = -1; // valid values are 0,1,2
z->marker = STBI__MARKER_none; // initialize cached marker to empty
m = stbi__get_marker(z);
if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG");
if (scan == STBI__SCAN_type) return 1;
m = stbi__get_marker(z);
while (!stbi__SOF(m)) {
if (!stbi__process_marker(z,m)) return 0;
m = stbi__get_marker(z);
while (m == STBI__MARKER_none) {
// some files have extra padding after their blocks, so ok, we'll scan
if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG");
m = stbi__get_marker(z);
}
}
z->progressive = stbi__SOF_progressive(m);
if (!stbi__process_frame_header(z, scan)) return 0;
return 1;
}
// decode image to YCbCr format
static int stbi__decode_jpeg_image(stbi__jpeg *j)
{
int m;
for (m = 0; m < 4; m++) {
j->img_comp[m].raw_data = NULL;
j->img_comp[m].raw_coeff = NULL;
}
j->restart_interval = 0;
if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0;
m = stbi__get_marker(j);
while (!stbi__EOI(m)) {
if (stbi__SOS(m)) {
if (!stbi__process_scan_header(j)) return 0;
if (!stbi__parse_entropy_coded_data(j)) return 0;
if (j->marker == STBI__MARKER_none ) {
// handle 0s at the end of image data from IP Kamera 9060
while (!stbi__at_eof(j->s)) {
int x = stbi__get8(j->s);
if (x == 255) {
j->marker = stbi__get8(j->s);
break;
}
}
// if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0
}
} else if (stbi__DNL(m)) {
int Ld = stbi__get16be(j->s);
stbi__uint32 NL = stbi__get16be(j->s);
if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG");
if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG");
} else {
if (!stbi__process_marker(j, m)) return 0;
}
m = stbi__get_marker(j);
}
if (j->progressive)
stbi__jpeg_finish(j);
return 1;
}
// static jfif-centered resampling (across block boundaries)
typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1,
int w, int hs);
#define stbi__div4(x) ((stbi_uc) ((x) >> 2))
static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
STBI_NOTUSED(out);
STBI_NOTUSED(in_far);
STBI_NOTUSED(w);
STBI_NOTUSED(hs);
return in_near;
}
static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate two samples vertically for every one in input
int i;
STBI_NOTUSED(hs);
for (i=0; i < w; ++i)
out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2);
return out;
}
static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate two samples horizontally for every one in input
int i;
stbi_uc *input = in_near;
if (w == 1) {
// if only one sample, can't do any interpolation
out[0] = out[1] = input[0];
return out;
}
out[0] = input[0];
out[1] = stbi__div4(input[0]*3 + input[1] + 2);
for (i=1; i < w-1; ++i) {
int n = 3*input[i]+2;
out[i*2+0] = stbi__div4(n+input[i-1]);
out[i*2+1] = stbi__div4(n+input[i+1]);
}
out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2);
out[i*2+1] = input[w-1];
STBI_NOTUSED(in_far);
STBI_NOTUSED(hs);
return out;
}
#define stbi__div16(x) ((stbi_uc) ((x) >> 4))
static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate 2x2 samples for every one in input
int i,t0,t1;
if (w == 1) {
out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);
return out;
}
t1 = 3*in_near[0] + in_far[0];
out[0] = stbi__div4(t1+2);
for (i=1; i < w; ++i) {
t0 = t1;
t1 = 3*in_near[i]+in_far[i];
out[i*2-1] = stbi__div16(3*t0 + t1 + 8);
out[i*2 ] = stbi__div16(3*t1 + t0 + 8);
}
out[w*2-1] = stbi__div4(t1+2);
STBI_NOTUSED(hs);
return out;
}
#if defined(STBI_SSE2) || defined(STBI_NEON)
static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate 2x2 samples for every one in input
int i=0,t0,t1;
if (w == 1) {
out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);
return out;
}
t1 = 3*in_near[0] + in_far[0];
// process groups of 8 pixels for as long as we can.
// note we can't handle the last pixel in a row in this loop
// because we need to handle the filter boundary conditions.
for (; i < ((w-1) & ~7); i += 8) {
#if defined(STBI_SSE2)
// load and perform the vertical filtering pass
// this uses 3*x + y = 4*x + (y - x)
__m128i zero = _mm_setzero_si128();
__m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i));
__m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i));
__m128i farw = _mm_unpacklo_epi8(farb, zero);
__m128i nearw = _mm_unpacklo_epi8(nearb, zero);
__m128i diff = _mm_sub_epi16(farw, nearw);
__m128i nears = _mm_slli_epi16(nearw, 2);
__m128i curr = _mm_add_epi16(nears, diff); // current row
// horizontal filter works the same based on shifted vers of current
// row. "prev" is current row shifted right by 1 pixel; we need to
// insert the previous pixel value (from t1).
// "next" is current row shifted left by 1 pixel, with first pixel
// of next block of 8 pixels added in.
__m128i prv0 = _mm_slli_si128(curr, 2);
__m128i nxt0 = _mm_srli_si128(curr, 2);
__m128i prev = _mm_insert_epi16(prv0, t1, 0);
__m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7);
// horizontal filter, polyphase implementation since it's convenient:
// even pixels = 3*cur + prev = cur*4 + (prev - cur)
// odd pixels = 3*cur + next = cur*4 + (next - cur)
// note the shared term.
__m128i bias = _mm_set1_epi16(8);
__m128i curs = _mm_slli_epi16(curr, 2);
__m128i prvd = _mm_sub_epi16(prev, curr);
__m128i nxtd = _mm_sub_epi16(next, curr);
__m128i curb = _mm_add_epi16(curs, bias);
__m128i even = _mm_add_epi16(prvd, curb);
__m128i odd = _mm_add_epi16(nxtd, curb);
// interleave even and odd pixels, then undo scaling.
__m128i int0 = _mm_unpacklo_epi16(even, odd);
__m128i int1 = _mm_unpackhi_epi16(even, odd);
__m128i de0 = _mm_srli_epi16(int0, 4);
__m128i de1 = _mm_srli_epi16(int1, 4);
// pack and write output
__m128i outv = _mm_packus_epi16(de0, de1);
_mm_storeu_si128((__m128i *) (out + i*2), outv);
#elif defined(STBI_NEON)
// load and perform the vertical filtering pass
// this uses 3*x + y = 4*x + (y - x)
uint8x8_t farb = vld1_u8(in_far + i);
uint8x8_t nearb = vld1_u8(in_near + i);
int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb));
int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2));
int16x8_t curr = vaddq_s16(nears, diff); // current row
// horizontal filter works the same based on shifted vers of current
// row. "prev" is current row shifted right by 1 pixel; we need to
// insert the previous pixel value (from t1).
// "next" is current row shifted left by 1 pixel, with first pixel
// of next block of 8 pixels added in.
int16x8_t prv0 = vextq_s16(curr, curr, 7);
int16x8_t nxt0 = vextq_s16(curr, curr, 1);
int16x8_t prev = vsetq_lane_s16(t1, prv0, 0);
int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7);
// horizontal filter, polyphase implementation since it's convenient:
// even pixels = 3*cur + prev = cur*4 + (prev - cur)
// odd pixels = 3*cur + next = cur*4 + (next - cur)
// note the shared term.
int16x8_t curs = vshlq_n_s16(curr, 2);
int16x8_t prvd = vsubq_s16(prev, curr);
int16x8_t nxtd = vsubq_s16(next, curr);
int16x8_t even = vaddq_s16(curs, prvd);
int16x8_t odd = vaddq_s16(curs, nxtd);
// undo scaling and round, then store with even/odd phases interleaved
uint8x8x2_t o;
o.val[0] = vqrshrun_n_s16(even, 4);
o.val[1] = vqrshrun_n_s16(odd, 4);
vst2_u8(out + i*2, o);
#endif
// "previous" value for next iter
t1 = 3*in_near[i+7] + in_far[i+7];
}
t0 = t1;
t1 = 3*in_near[i] + in_far[i];
out[i*2] = stbi__div16(3*t1 + t0 + 8);
for (++i; i < w; ++i) {
t0 = t1;
t1 = 3*in_near[i]+in_far[i];
out[i*2-1] = stbi__div16(3*t0 + t1 + 8);
out[i*2 ] = stbi__div16(3*t1 + t0 + 8);
}
out[w*2-1] = stbi__div4(t1+2);
STBI_NOTUSED(hs);
return out;
}
#endif
static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// resample with nearest-neighbor
int i,j;
STBI_NOTUSED(in_far);
for (i=0; i < w; ++i)
for (j=0; j < hs; ++j)
out[i*hs+j] = in_near[i];
return out;
}
// this is a reduced-precision calculation of YCbCr-to-RGB introduced
// to make sure the code produces the same results in both SIMD and scalar
#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8)
static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step)
{
int i;
for (i=0; i < count; ++i) {
int y_fixed = (y[i] << 20) + (1<<19); // rounding
int r,g,b;
int cr = pcr[i] - 128;
int cb = pcb[i] - 128;
r = y_fixed + cr* stbi__float2fixed(1.40200f);
g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000);
b = y_fixed + cb* stbi__float2fixed(1.77200f);
r >>= 20;
g >>= 20;
b >>= 20;
if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; }
if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; }
if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; }
out[0] = (stbi_uc)r;
out[1] = (stbi_uc)g;
out[2] = (stbi_uc)b;
out[3] = 255;
out += step;
}
}
#if defined(STBI_SSE2) || defined(STBI_NEON)
static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step)
{
int i = 0;
#ifdef STBI_SSE2
// step == 3 is pretty ugly on the final interleave, and i'm not convinced
// it's useful in practice (you wouldn't use it for textures, for example).
// so just accelerate step == 4 case.
if (step == 4) {
// this is a fairly straightforward implementation and not super-optimized.
__m128i signflip = _mm_set1_epi8(-0x80);
__m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f));
__m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f));
__m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f));
__m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f));
__m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128);
__m128i xw = _mm_set1_epi16(255); // alpha channel
for (; i+7 < count; i += 8) {
// load
__m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i));
__m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i));
__m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i));
__m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128
__m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128
// unpack to short (and left-shift cr, cb by 8)
__m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes);
__m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased);
__m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased);
// color transform
__m128i yws = _mm_srli_epi16(yw, 4);
__m128i cr0 = _mm_mulhi_epi16(cr_const0, crw);
__m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw);
__m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1);
__m128i cr1 = _mm_mulhi_epi16(crw, cr_const1);
__m128i rws = _mm_add_epi16(cr0, yws);
__m128i gwt = _mm_add_epi16(cb0, yws);
__m128i bws = _mm_add_epi16(yws, cb1);
__m128i gws = _mm_add_epi16(gwt, cr1);
// descale
__m128i rw = _mm_srai_epi16(rws, 4);
__m128i bw = _mm_srai_epi16(bws, 4);
__m128i gw = _mm_srai_epi16(gws, 4);
// back to byte, set up for transpose
__m128i brb = _mm_packus_epi16(rw, bw);
__m128i gxb = _mm_packus_epi16(gw, xw);
// transpose to interleave channels
__m128i t0 = _mm_unpacklo_epi8(brb, gxb);
__m128i t1 = _mm_unpackhi_epi8(brb, gxb);
__m128i o0 = _mm_unpacklo_epi16(t0, t1);
__m128i o1 = _mm_unpackhi_epi16(t0, t1);
// store
_mm_storeu_si128((__m128i *) (out + 0), o0);
_mm_storeu_si128((__m128i *) (out + 16), o1);
out += 32;
}
}
#endif
#ifdef STBI_NEON
// in this version, step=3 support would be easy to add. but is there demand?
if (step == 4) {
// this is a fairly straightforward implementation and not super-optimized.
uint8x8_t signflip = vdup_n_u8(0x80);
int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f));
int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f));
int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f));
int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f));
for (; i+7 < count; i += 8) {
// load
uint8x8_t y_bytes = vld1_u8(y + i);
uint8x8_t cr_bytes = vld1_u8(pcr + i);
uint8x8_t cb_bytes = vld1_u8(pcb + i);
int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip));
int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip));
// expand to s16
int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4));
int16x8_t crw = vshll_n_s8(cr_biased, 7);
int16x8_t cbw = vshll_n_s8(cb_biased, 7);
// color transform
int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0);
int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0);
int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1);
int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1);
int16x8_t rws = vaddq_s16(yws, cr0);
int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1);
int16x8_t bws = vaddq_s16(yws, cb1);
// undo scaling, round, convert to byte
uint8x8x4_t o;
o.val[0] = vqrshrun_n_s16(rws, 4);
o.val[1] = vqrshrun_n_s16(gws, 4);
o.val[2] = vqrshrun_n_s16(bws, 4);
o.val[3] = vdup_n_u8(255);
// store, interleaving r/g/b/a
vst4_u8(out, o);
out += 8*4;
}
}
#endif
for (; i < count; ++i) {
int y_fixed = (y[i] << 20) + (1<<19); // rounding
int r,g,b;
int cr = pcr[i] - 128;
int cb = pcb[i] - 128;
r = y_fixed + cr* stbi__float2fixed(1.40200f);
g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000);
b = y_fixed + cb* stbi__float2fixed(1.77200f);
r >>= 20;
g >>= 20;
b >>= 20;
if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; }
if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; }
if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; }
out[0] = (stbi_uc)r;
out[1] = (stbi_uc)g;
out[2] = (stbi_uc)b;
out[3] = 255;
out += step;
}
}
#endif
// set up the kernels
static void stbi__setup_jpeg(stbi__jpeg *j)
{
j->idct_block_kernel = stbi__idct_block;
j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row;
j->resample_row_hv_2_kernel = stbi__resample_row_hv_2;
#ifdef STBI_SSE2
if (stbi__sse2_available()) {
j->idct_block_kernel = stbi__idct_simd;
j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;
j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;
}
#endif
#ifdef STBI_NEON
j->idct_block_kernel = stbi__idct_simd;
j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;
j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;
#endif
}
// clean up the temporary component buffers
static void stbi__cleanup_jpeg(stbi__jpeg *j)
{
stbi__free_jpeg_components(j, j->s->img_n, 0);
}
typedef struct
{
resample_row_func resample;
stbi_uc *line0,*line1;
int hs,vs; // expansion factor in each axis
int w_lores; // horizontal pixels pre-expansion
int ystep; // how far through vertical expansion we are
int ypos; // which pre-expansion row we're on
} stbi__resample;
// fast 0..255 * 0..255 => 0..255 rounded multiplication
static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y)
{
unsigned int t = x*y + 128;
return (stbi_uc) ((t + (t >>8)) >> 8);
}
static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp)
{
int n, decode_n, is_rgb;
z->s->img_n = 0; // make stbi__cleanup_jpeg safe
// validate req_comp
if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
// load a jpeg image from whichever source, but leave in YCbCr format
if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; }
// determine actual number of components to generate
n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1;
is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif));
if (z->s->img_n == 3 && n < 3 && !is_rgb)
decode_n = 1;
else
decode_n = z->s->img_n;
// nothing to do if no components requested; check this now to avoid
// accessing uninitialized coutput[0] later
if (decode_n <= 0) { stbi__cleanup_jpeg(z); return NULL; }
// resample and color-convert
{
int k;
unsigned int i,j;
stbi_uc *output;
stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL };
stbi__resample res_comp[4];
for (k=0; k < decode_n; ++k) {
stbi__resample *r = &res_comp[k];
// allocate line buffer big enough for upsampling off the edges
// with upsample factor of 4
z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3);
if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
r->hs = z->img_h_max / z->img_comp[k].h;
r->vs = z->img_v_max / z->img_comp[k].v;
r->ystep = r->vs >> 1;
r->w_lores = (z->s->img_x + r->hs-1) / r->hs;
r->ypos = 0;
r->line0 = r->line1 = z->img_comp[k].data;
if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1;
else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2;
else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2;
else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel;
else r->resample = stbi__resample_row_generic;
}
// can't error after this so, this is safe
output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1);
if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
// now go ahead and resample
for (j=0; j < z->s->img_y; ++j) {
stbi_uc *out = output + n * z->s->img_x * j;
for (k=0; k < decode_n; ++k) {
stbi__resample *r = &res_comp[k];
int y_bot = r->ystep >= (r->vs >> 1);
coutput[k] = r->resample(z->img_comp[k].linebuf,
y_bot ? r->line1 : r->line0,
y_bot ? r->line0 : r->line1,
r->w_lores, r->hs);
if (++r->ystep >= r->vs) {
r->ystep = 0;
r->line0 = r->line1;
if (++r->ypos < z->img_comp[k].y)
r->line1 += z->img_comp[k].w2;
}
}
if (n >= 3) {
stbi_uc *y = coutput[0];
if (z->s->img_n == 3) {
if (is_rgb) {
for (i=0; i < z->s->img_x; ++i) {
out[0] = y[i];
out[1] = coutput[1][i];
out[2] = coutput[2][i];
out[3] = 255;
out += n;
}
} else {
z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);
}
} else if (z->s->img_n == 4) {
if (z->app14_color_transform == 0) { // CMYK
for (i=0; i < z->s->img_x; ++i) {
stbi_uc m = coutput[3][i];
out[0] = stbi__blinn_8x8(coutput[0][i], m);
out[1] = stbi__blinn_8x8(coutput[1][i], m);
out[2] = stbi__blinn_8x8(coutput[2][i], m);
out[3] = 255;
out += n;
}
} else if (z->app14_color_transform == 2) { // YCCK
z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);
for (i=0; i < z->s->img_x; ++i) {
stbi_uc m = coutput[3][i];
out[0] = stbi__blinn_8x8(255 - out[0], m);
out[1] = stbi__blinn_8x8(255 - out[1], m);
out[2] = stbi__blinn_8x8(255 - out[2], m);
out += n;
}
} else { // YCbCr + alpha? Ignore the fourth channel for now
z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);
}
} else
for (i=0; i < z->s->img_x; ++i) {
out[0] = out[1] = out[2] = y[i];
out[3] = 255; // not used if n==3
out += n;
}
} else {
if (is_rgb) {
if (n == 1)
for (i=0; i < z->s->img_x; ++i)
*out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]);
else {
for (i=0; i < z->s->img_x; ++i, out += 2) {
out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]);
out[1] = 255;
}
}
} else if (z->s->img_n == 4 && z->app14_color_transform == 0) {
for (i=0; i < z->s->img_x; ++i) {
stbi_uc m = coutput[3][i];
stbi_uc r = stbi__blinn_8x8(coutput[0][i], m);
stbi_uc g = stbi__blinn_8x8(coutput[1][i], m);
stbi_uc b = stbi__blinn_8x8(coutput[2][i], m);
out[0] = stbi__compute_y(r, g, b);
out[1] = 255;
out += n;
}
} else if (z->s->img_n == 4 && z->app14_color_transform == 2) {
for (i=0; i < z->s->img_x; ++i) {
out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]);
out[1] = 255;
out += n;
}
} else {
stbi_uc *y = coutput[0];
if (n == 1)
for (i=0; i < z->s->img_x; ++i) out[i] = y[i];
else
for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; }
}
}
}
stbi__cleanup_jpeg(z);
*out_x = z->s->img_x;
*out_y = z->s->img_y;
if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output
return output;
}
}
static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
unsigned char* result;
stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg));
if (!j) return stbi__errpuc("outofmem", "Out of memory");
STBI_NOTUSED(ri);
j->s = s;
stbi__setup_jpeg(j);
result = load_jpeg_image(j, x,y,comp,req_comp);
STBI_FREE(j);
return result;
}
static int stbi__jpeg_test(stbi__context *s)
{
int r;
stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg));
if (!j) return stbi__err("outofmem", "Out of memory");
j->s = s;
stbi__setup_jpeg(j);
r = stbi__decode_jpeg_header(j, STBI__SCAN_type);
stbi__rewind(s);
STBI_FREE(j);
return r;
}
static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp)
{
if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) {
stbi__rewind( j->s );
return 0;
}
if (x) *x = j->s->img_x;
if (y) *y = j->s->img_y;
if (comp) *comp = j->s->img_n >= 3 ? 3 : 1;
return 1;
}
static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp)
{
int result;
stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg)));
if (!j) return stbi__err("outofmem", "Out of memory");
j->s = s;
result = stbi__jpeg_info_raw(j, x, y, comp);
STBI_FREE(j);
return result;
}
#endif
// public domain zlib decode v0.2 Sean Barrett 2006-11-18
// simple implementation
// - all input must be provided in an upfront buffer
// - all output is written to a single output buffer (can malloc/realloc)
// performance
// - fast huffman
#ifndef STBI_NO_ZLIB
// fast-way is faster to check than jpeg huffman, but slow way is slower
#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables
#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1)
#define STBI__ZNSYMS 288 // number of symbols in literal/length alphabet
// zlib-style huffman encoding
// (jpegs packs from left, zlib from right, so can't share code)
typedef struct
{
stbi__uint16 fast[1 << STBI__ZFAST_BITS];
stbi__uint16 firstcode[16];
int maxcode[17];
stbi__uint16 firstsymbol[16];
stbi_uc size[STBI__ZNSYMS];
stbi__uint16 value[STBI__ZNSYMS];
} stbi__zhuffman;
stbi_inline static int stbi__bitreverse16(int n)
{
n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1);
n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2);
n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4);
n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8);
return n;
}
stbi_inline static int stbi__bit_reverse(int v, int bits)
{
STBI_ASSERT(bits <= 16);
// to bit reverse n bits, reverse 16 and shift
// e.g. 11 bits, bit reverse and shift away 5
return stbi__bitreverse16(v) >> (16-bits);
}
static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num)
{
int i,k=0;
int code, next_code[16], sizes[17];
// DEFLATE spec for generating codes
memset(sizes, 0, sizeof(sizes));
memset(z->fast, 0, sizeof(z->fast));
for (i=0; i < num; ++i)
++sizes[sizelist[i]];
sizes[0] = 0;
for (i=1; i < 16; ++i)
if (sizes[i] > (1 << i))
return stbi__err("bad sizes", "Corrupt PNG");
code = 0;
for (i=1; i < 16; ++i) {
next_code[i] = code;
z->firstcode[i] = (stbi__uint16) code;
z->firstsymbol[i] = (stbi__uint16) k;
code = (code + sizes[i]);
if (sizes[i])
if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG");
z->maxcode[i] = code << (16-i); // preshift for inner loop
code <<= 1;
k += sizes[i];
}
z->maxcode[16] = 0x10000; // sentinel
for (i=0; i < num; ++i) {
int s = sizelist[i];
if (s) {
int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s];
stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i);
z->size [c] = (stbi_uc ) s;
z->value[c] = (stbi__uint16) i;
if (s <= STBI__ZFAST_BITS) {
int j = stbi__bit_reverse(next_code[s],s);
while (j < (1 << STBI__ZFAST_BITS)) {
z->fast[j] = fastv;
j += (1 << s);
}
}
++next_code[s];
}
}
return 1;
}
// zlib-from-memory implementation for PNG reading
// because PNG allows splitting the zlib stream arbitrarily,
// and it's annoying structurally to have PNG call ZLIB call PNG,
// we require PNG read all the IDATs and combine them into a single
// memory buffer
typedef struct
{
stbi_uc *zbuffer, *zbuffer_end;
int num_bits;
stbi__uint32 code_buffer;
char *zout;
char *zout_start;
char *zout_end;
int z_expandable;
stbi__zhuffman z_length, z_distance;
} stbi__zbuf;
stbi_inline static int stbi__zeof(stbi__zbuf *z)
{
return (z->zbuffer >= z->zbuffer_end);
}
stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z)
{
return stbi__zeof(z) ? 0 : *z->zbuffer++;
}
static void stbi__fill_bits(stbi__zbuf *z)
{
do {
if (z->code_buffer >= (1U << z->num_bits)) {
z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */
return;
}
z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits;
z->num_bits += 8;
} while (z->num_bits <= 24);
}
stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n)
{
unsigned int k;
if (z->num_bits < n) stbi__fill_bits(z);
k = z->code_buffer & ((1 << n) - 1);
z->code_buffer >>= n;
z->num_bits -= n;
return k;
}
static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z)
{
int b,s,k;
// not resolved by fast table, so compute it the slow way
// use jpeg approach, which requires MSbits at top
k = stbi__bit_reverse(a->code_buffer, 16);
for (s=STBI__ZFAST_BITS+1; ; ++s)
if (k < z->maxcode[s])
break;
if (s >= 16) return -1; // invalid code!
// code size is s, so:
b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s];
if (b >= STBI__ZNSYMS) return -1; // some data was corrupt somewhere!
if (z->size[b] != s) return -1; // was originally an assert, but report failure instead.
a->code_buffer >>= s;
a->num_bits -= s;
return z->value[b];
}
stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z)
{
int b,s;
if (a->num_bits < 16) {
if (stbi__zeof(a)) {
return -1; /* report error for unexpected end of data. */
}
stbi__fill_bits(a);
}
b = z->fast[a->code_buffer & STBI__ZFAST_MASK];
if (b) {
s = b >> 9;
a->code_buffer >>= s;
a->num_bits -= s;
return b & 511;
}
return stbi__zhuffman_decode_slowpath(a, z);
}
static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes
{
char *q;
unsigned int cur, limit, old_limit;
z->zout = zout;
if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG");
cur = (unsigned int) (z->zout - z->zout_start);
limit = old_limit = (unsigned) (z->zout_end - z->zout_start);
if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory");
while (cur + n > limit) {
if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory");
limit *= 2;
}
q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit);
STBI_NOTUSED(old_limit);
if (q == NULL) return stbi__err("outofmem", "Out of memory");
z->zout_start = q;
z->zout = q + cur;
z->zout_end = q + limit;
return 1;
}
static const int stbi__zlength_base[31] = {
3,4,5,6,7,8,9,10,11,13,
15,17,19,23,27,31,35,43,51,59,
67,83,99,115,131,163,195,227,258,0,0 };
static const int stbi__zlength_extra[31]=
{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 };
static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,
257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0};
static const int stbi__zdist_extra[32] =
{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
static int stbi__parse_huffman_block(stbi__zbuf *a)
{
char *zout = a->zout;
for(;;) {
int z = stbi__zhuffman_decode(a, &a->z_length);
if (z < 256) {
if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes
if (zout >= a->zout_end) {
if (!stbi__zexpand(a, zout, 1)) return 0;
zout = a->zout;
}
*zout++ = (char) z;
} else {
stbi_uc *p;
int len,dist;
if (z == 256) {
a->zout = zout;
return 1;
}
z -= 257;
len = stbi__zlength_base[z];
if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]);
z = stbi__zhuffman_decode(a, &a->z_distance);
if (z < 0) return stbi__err("bad huffman code","Corrupt PNG");
dist = stbi__zdist_base[z];
if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]);
if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG");
if (zout + len > a->zout_end) {
if (!stbi__zexpand(a, zout, len)) return 0;
zout = a->zout;
}
p = (stbi_uc *) (zout - dist);
if (dist == 1) { // run of one byte; common in images.
stbi_uc v = *p;
if (len) { do *zout++ = v; while (--len); }
} else {
if (len) { do *zout++ = *p++; while (--len); }
}
}
}
}
static int stbi__compute_huffman_codes(stbi__zbuf *a)
{
static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 };
stbi__zhuffman z_codelength;
stbi_uc lencodes[286+32+137];//padding for maximum single op
stbi_uc codelength_sizes[19];
int i,n;
int hlit = stbi__zreceive(a,5) + 257;
int hdist = stbi__zreceive(a,5) + 1;
int hclen = stbi__zreceive(a,4) + 4;
int ntot = hlit + hdist;
memset(codelength_sizes, 0, sizeof(codelength_sizes));
for (i=0; i < hclen; ++i) {
int s = stbi__zreceive(a,3);
codelength_sizes[length_dezigzag[i]] = (stbi_uc) s;
}
if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0;
n = 0;
while (n < ntot) {
int c = stbi__zhuffman_decode(a, &z_codelength);
if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG");
if (c < 16)
lencodes[n++] = (stbi_uc) c;
else {
stbi_uc fill = 0;
if (c == 16) {
c = stbi__zreceive(a,2)+3;
if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG");
fill = lencodes[n-1];
} else if (c == 17) {
c = stbi__zreceive(a,3)+3;
} else if (c == 18) {
c = stbi__zreceive(a,7)+11;
} else {
return stbi__err("bad codelengths", "Corrupt PNG");
}
if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG");
memset(lencodes+n, fill, c);
n += c;
}
}
if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG");
if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0;
if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0;
return 1;
}
static int stbi__parse_uncompressed_block(stbi__zbuf *a)
{
stbi_uc header[4];
int len,nlen,k;
if (a->num_bits & 7)
stbi__zreceive(a, a->num_bits & 7); // discard
// drain the bit-packed data into header
k = 0;
while (a->num_bits > 0) {
header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check
a->code_buffer >>= 8;
a->num_bits -= 8;
}
if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG");
// now fill header the normal way
while (k < 4)
header[k++] = stbi__zget8(a);
len = header[1] * 256 + header[0];
nlen = header[3] * 256 + header[2];
if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG");
if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG");
if (a->zout + len > a->zout_end)
if (!stbi__zexpand(a, a->zout, len)) return 0;
memcpy(a->zout, a->zbuffer, len);
a->zbuffer += len;
a->zout += len;
return 1;
}
static int stbi__parse_zlib_header(stbi__zbuf *a)
{
int cmf = stbi__zget8(a);
int cm = cmf & 15;
/* int cinfo = cmf >> 4; */
int flg = stbi__zget8(a);
if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec
if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec
if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png
if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png
// window = 1 << (8 + cinfo)... but who cares, we fully buffer output
return 1;
}
static const stbi_uc stbi__zdefault_length[STBI__ZNSYMS] =
{
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8
};
static const stbi_uc stbi__zdefault_distance[32] =
{
5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5
};
/*
Init algorithm:
{
int i; // use <= to match clearly with spec
for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8;
for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9;
for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7;
for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8;
for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5;
}
*/
static int stbi__parse_zlib(stbi__zbuf *a, int parse_header)
{
int final, type;
if (parse_header)
if (!stbi__parse_zlib_header(a)) return 0;
a->num_bits = 0;
a->code_buffer = 0;
do {
final = stbi__zreceive(a,1);
type = stbi__zreceive(a,2);
if (type == 0) {
if (!stbi__parse_uncompressed_block(a)) return 0;
} else if (type == 3) {
return 0;
} else {
if (type == 1) {
// use fixed code lengths
if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , STBI__ZNSYMS)) return 0;
if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0;
} else {
if (!stbi__compute_huffman_codes(a)) return 0;
}
if (!stbi__parse_huffman_block(a)) return 0;
}
} while (!final);
return 1;
}
static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header)
{
a->zout_start = obuf;
a->zout = obuf;
a->zout_end = obuf + olen;
a->z_expandable = exp;
return stbi__parse_zlib(a, parse_header);
}
STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen)
{
stbi__zbuf a;
char *p = (char *) stbi__malloc(initial_size);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(&a, p, initial_size, 1, 1)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
} else {
STBI_FREE(a.zout_start);
return NULL;
}
}
STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
{
return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen);
}
STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header)
{
stbi__zbuf a;
char *p = (char *) stbi__malloc(initial_size);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
} else {
STBI_FREE(a.zout_start);
return NULL;
}
}
STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
{
stbi__zbuf a;
a.zbuffer = (stbi_uc *) ibuffer;
a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(&a, obuffer, olen, 0, 1))
return (int) (a.zout - a.zout_start);
else
return -1;
}
STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
{
stbi__zbuf a;
char *p = (char *) stbi__malloc(16384);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer+len;
if (stbi__do_zlib(&a, p, 16384, 1, 0)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
} else {
STBI_FREE(a.zout_start);
return NULL;
}
}
STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
{
stbi__zbuf a;
a.zbuffer = (stbi_uc *) ibuffer;
a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(&a, obuffer, olen, 0, 0))
return (int) (a.zout - a.zout_start);
else
return -1;
}
#endif
// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18
// simple implementation
// - only 8-bit samples
// - no CRC checking
// - allocates lots of intermediate memory
// - avoids problem of streaming data between subsystems
// - avoids explicit window management
// performance
// - uses stb_zlib, a PD zlib implementation with fast huffman decoding
#ifndef STBI_NO_PNG
typedef struct
{
stbi__uint32 length;
stbi__uint32 type;
} stbi__pngchunk;
static stbi__pngchunk stbi__get_chunk_header(stbi__context *s)
{
stbi__pngchunk c;
c.length = stbi__get32be(s);
c.type = stbi__get32be(s);
return c;
}
static int stbi__check_png_header(stbi__context *s)
{
static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 };
int i;
for (i=0; i < 8; ++i)
if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG");
return 1;
}
typedef struct
{
stbi__context *s;
stbi_uc *idata, *expanded, *out;
int depth;
} stbi__png;
enum {
STBI__F_none=0,
STBI__F_sub=1,
STBI__F_up=2,
STBI__F_avg=3,
STBI__F_paeth=4,
// synthetic filters used for first scanline to avoid needing a dummy row of 0s
STBI__F_avg_first,
STBI__F_paeth_first
};
static stbi_uc first_row_filter[5] =
{
STBI__F_none,
STBI__F_sub,
STBI__F_none,
STBI__F_avg_first,
STBI__F_paeth_first
};
static int stbi__paeth(int a, int b, int c)
{
int p = a + b - c;
int pa = abs(p-a);
int pb = abs(p-b);
int pc = abs(p-c);
if (pa <= pb && pa <= pc) return a;
if (pb <= pc) return b;
return c;
}
static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 };
// create the png data from post-deflated data
static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color)
{
int bytes = (depth == 16? 2 : 1);
stbi__context *s = a->s;
stbi__uint32 i,j,stride = x*out_n*bytes;
stbi__uint32 img_len, img_width_bytes;
int k;
int img_n = s->img_n; // copy it into a local for later
int output_bytes = out_n*bytes;
int filter_bytes = img_n*bytes;
int width = x;
STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1);
a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into
if (!a->out) return stbi__err("outofmem", "Out of memory");
if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG");
img_width_bytes = (((img_n * x * depth) + 7) >> 3);
img_len = (img_width_bytes + 1) * y;
// we used to check for exact match between raw_len and img_len on non-interlaced PNGs,
// but issue #276 reported a PNG in the wild that had extra data at the end (all zeros),
// so just check for raw_len < img_len always.
if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG");
for (j=0; j < y; ++j) {
stbi_uc *cur = a->out + stride*j;
stbi_uc *prior;
int filter = *raw++;
if (filter > 4)
return stbi__err("invalid filter","Corrupt PNG");
if (depth < 8) {
if (img_width_bytes > x) return stbi__err("invalid width","Corrupt PNG");
cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place
filter_bytes = 1;
width = img_width_bytes;
}
prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above
// if first row, use special filter that doesn't sample previous row
if (j == 0) filter = first_row_filter[filter];
// handle first byte explicitly
for (k=0; k < filter_bytes; ++k) {
switch (filter) {
case STBI__F_none : cur[k] = raw[k]; break;
case STBI__F_sub : cur[k] = raw[k]; break;
case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break;
case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break;
case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break;
case STBI__F_avg_first : cur[k] = raw[k]; break;
case STBI__F_paeth_first: cur[k] = raw[k]; break;
}
}
if (depth == 8) {
if (img_n != out_n)
cur[img_n] = 255; // first pixel
raw += img_n;
cur += out_n;
prior += out_n;
} else if (depth == 16) {
if (img_n != out_n) {
cur[filter_bytes] = 255; // first pixel top byte
cur[filter_bytes+1] = 255; // first pixel bottom byte
}
raw += filter_bytes;
cur += output_bytes;
prior += output_bytes;
} else {
raw += 1;
cur += 1;
prior += 1;
}
// this is a little gross, so that we don't switch per-pixel or per-component
if (depth < 8 || img_n == out_n) {
int nk = (width - 1)*filter_bytes;
#define STBI__CASE(f) \
case f: \
for (k=0; k < nk; ++k)
switch (filter) {
// "none" filter turns into a memcpy here; make that explicit.
case STBI__F_none: memcpy(cur, raw, nk); break;
STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break;
STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break;
STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break;
STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break;
STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break;
STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break;
}
#undef STBI__CASE
raw += nk;
} else {
STBI_ASSERT(img_n+1 == out_n);
#define STBI__CASE(f) \
case f: \
for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \
for (k=0; k < filter_bytes; ++k)
switch (filter) {
STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break;
STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break;
STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break;
STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break;
STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break;
STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break;
STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break;
}
#undef STBI__CASE
// the loop above sets the high byte of the pixels' alpha, but for
// 16 bit png files we also need the low byte set. we'll do that here.
if (depth == 16) {
cur = a->out + stride*j; // start at the beginning of the row again
for (i=0; i < x; ++i,cur+=output_bytes) {
cur[filter_bytes+1] = 255;
}
}
}
}
// we make a separate pass to expand bits to pixels; for performance,
// this could run two scanlines behind the above code, so it won't
// intefere with filtering but will still be in the cache.
if (depth < 8) {
for (j=0; j < y; ++j) {
stbi_uc *cur = a->out + stride*j;
stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes;
// unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit
// png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop
stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range
// note that the final byte might overshoot and write more data than desired.
// we can allocate enough data that this never writes out of memory, but it
// could also overwrite the next scanline. can it overwrite non-empty data
// on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel.
// so we need to explicitly clamp the final ones
if (depth == 4) {
for (k=x*img_n; k >= 2; k-=2, ++in) {
*cur++ = scale * ((*in >> 4) );
*cur++ = scale * ((*in ) & 0x0f);
}
if (k > 0) *cur++ = scale * ((*in >> 4) );
} else if (depth == 2) {
for (k=x*img_n; k >= 4; k-=4, ++in) {
*cur++ = scale * ((*in >> 6) );
*cur++ = scale * ((*in >> 4) & 0x03);
*cur++ = scale * ((*in >> 2) & 0x03);
*cur++ = scale * ((*in ) & 0x03);
}
if (k > 0) *cur++ = scale * ((*in >> 6) );
if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03);
if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03);
} else if (depth == 1) {
for (k=x*img_n; k >= 8; k-=8, ++in) {
*cur++ = scale * ((*in >> 7) );
*cur++ = scale * ((*in >> 6) & 0x01);
*cur++ = scale * ((*in >> 5) & 0x01);
*cur++ = scale * ((*in >> 4) & 0x01);
*cur++ = scale * ((*in >> 3) & 0x01);
*cur++ = scale * ((*in >> 2) & 0x01);
*cur++ = scale * ((*in >> 1) & 0x01);
*cur++ = scale * ((*in ) & 0x01);
}
if (k > 0) *cur++ = scale * ((*in >> 7) );
if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01);
if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01);
if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01);
if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01);
if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01);
if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01);
}
if (img_n != out_n) {
int q;
// insert alpha = 255
cur = a->out + stride*j;
if (img_n == 1) {
for (q=x-1; q >= 0; --q) {
cur[q*2+1] = 255;
cur[q*2+0] = cur[q];
}
} else {
STBI_ASSERT(img_n == 3);
for (q=x-1; q >= 0; --q) {
cur[q*4+3] = 255;
cur[q*4+2] = cur[q*3+2];
cur[q*4+1] = cur[q*3+1];
cur[q*4+0] = cur[q*3+0];
}
}
}
}
} else if (depth == 16) {
// force the image data from big-endian to platform-native.
// this is done in a separate pass due to the decoding relying
// on the data being untouched, but could probably be done
// per-line during decode if care is taken.
stbi_uc *cur = a->out;
stbi__uint16 *cur16 = (stbi__uint16*)cur;
for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) {
*cur16 = (cur[0] << 8) | cur[1];
}
}
return 1;
}
static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced)
{
int bytes = (depth == 16 ? 2 : 1);
int out_bytes = out_n * bytes;
stbi_uc *final;
int p;
if (!interlaced)
return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color);
// de-interlacing
final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0);
if (!final) return stbi__err("outofmem", "Out of memory");
for (p=0; p < 7; ++p) {
int xorig[] = { 0,4,0,2,0,1,0 };
int yorig[] = { 0,0,4,0,2,0,1 };
int xspc[] = { 8,8,4,4,2,2,1 };
int yspc[] = { 8,8,8,4,4,2,2 };
int i,j,x,y;
// pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1
x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p];
y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p];
if (x && y) {
stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y;
if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) {
STBI_FREE(final);
return 0;
}
for (j=0; j < y; ++j) {
for (i=0; i < x; ++i) {
int out_y = j*yspc[p]+yorig[p];
int out_x = i*xspc[p]+xorig[p];
memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes,
a->out + (j*x+i)*out_bytes, out_bytes);
}
}
STBI_FREE(a->out);
image_data += img_len;
image_data_len -= img_len;
}
}
a->out = final;
return 1;
}
static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n)
{
stbi__context *s = z->s;
stbi__uint32 i, pixel_count = s->img_x * s->img_y;
stbi_uc *p = z->out;
// compute color-based transparency, assuming we've
// already got 255 as the alpha value in the output
STBI_ASSERT(out_n == 2 || out_n == 4);
if (out_n == 2) {
for (i=0; i < pixel_count; ++i) {
p[1] = (p[0] == tc[0] ? 0 : 255);
p += 2;
}
} else {
for (i=0; i < pixel_count; ++i) {
if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])
p[3] = 0;
p += 4;
}
}
return 1;
}
static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n)
{
stbi__context *s = z->s;
stbi__uint32 i, pixel_count = s->img_x * s->img_y;
stbi__uint16 *p = (stbi__uint16*) z->out;
// compute color-based transparency, assuming we've
// already got 65535 as the alpha value in the output
STBI_ASSERT(out_n == 2 || out_n == 4);
if (out_n == 2) {
for (i = 0; i < pixel_count; ++i) {
p[1] = (p[0] == tc[0] ? 0 : 65535);
p += 2;
}
} else {
for (i = 0; i < pixel_count; ++i) {
if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])
p[3] = 0;
p += 4;
}
}
return 1;
}
static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n)
{
stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y;
stbi_uc *p, *temp_out, *orig = a->out;
p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0);
if (p == NULL) return stbi__err("outofmem", "Out of memory");
// between here and free(out) below, exitting would leak
temp_out = p;
if (pal_img_n == 3) {
for (i=0; i < pixel_count; ++i) {
int n = orig[i]*4;
p[0] = palette[n ];
p[1] = palette[n+1];
p[2] = palette[n+2];
p += 3;
}
} else {
for (i=0; i < pixel_count; ++i) {
int n = orig[i]*4;
p[0] = palette[n ];
p[1] = palette[n+1];
p[2] = palette[n+2];
p[3] = palette[n+3];
p += 4;
}
}
STBI_FREE(a->out);
a->out = temp_out;
STBI_NOTUSED(len);
return 1;
}
static int stbi__unpremultiply_on_load_global = 0;
static int stbi__de_iphone_flag_global = 0;
STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
{
stbi__unpremultiply_on_load_global = flag_true_if_should_unpremultiply;
}
STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
{
stbi__de_iphone_flag_global = flag_true_if_should_convert;
}
#ifndef STBI_THREAD_LOCAL
#define stbi__unpremultiply_on_load stbi__unpremultiply_on_load_global
#define stbi__de_iphone_flag stbi__de_iphone_flag_global
#else
static STBI_THREAD_LOCAL int stbi__unpremultiply_on_load_local, stbi__unpremultiply_on_load_set;
static STBI_THREAD_LOCAL int stbi__de_iphone_flag_local, stbi__de_iphone_flag_set;
STBIDEF void stbi__unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
{
stbi__unpremultiply_on_load_local = flag_true_if_should_unpremultiply;
stbi__unpremultiply_on_load_set = 1;
}
STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
{
stbi__de_iphone_flag_local = flag_true_if_should_convert;
stbi__de_iphone_flag_set = 1;
}
#define stbi__unpremultiply_on_load (stbi__unpremultiply_on_load_set \
? stbi__unpremultiply_on_load_local \
: stbi__unpremultiply_on_load_global)
#define stbi__de_iphone_flag (stbi__de_iphone_flag_set \
? stbi__de_iphone_flag_local \
: stbi__de_iphone_flag_global)
#endif // STBI_THREAD_LOCAL
static void stbi__de_iphone(stbi__png *z)
{
stbi__context *s = z->s;
stbi__uint32 i, pixel_count = s->img_x * s->img_y;
stbi_uc *p = z->out;
if (s->img_out_n == 3) { // convert bgr to rgb
for (i=0; i < pixel_count; ++i) {
stbi_uc t = p[0];
p[0] = p[2];
p[2] = t;
p += 3;
}
} else {
STBI_ASSERT(s->img_out_n == 4);
if (stbi__unpremultiply_on_load) {
// convert bgr to rgb and unpremultiply
for (i=0; i < pixel_count; ++i) {
stbi_uc a = p[3];
stbi_uc t = p[0];
if (a) {
stbi_uc half = a / 2;
p[0] = (p[2] * 255 + half) / a;
p[1] = (p[1] * 255 + half) / a;
p[2] = ( t * 255 + half) / a;
} else {
p[0] = p[2];
p[2] = t;
}
p += 4;
}
} else {
// convert bgr to rgb
for (i=0; i < pixel_count; ++i) {
stbi_uc t = p[0];
p[0] = p[2];
p[2] = t;
p += 4;
}
}
}
}
#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d))
static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp)
{
stbi_uc palette[1024], pal_img_n=0;
stbi_uc has_trans=0, tc[3]={0};
stbi__uint16 tc16[3];
stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0;
int first=1,k,interlace=0, color=0, is_iphone=0;
stbi__context *s = z->s;
z->expanded = NULL;
z->idata = NULL;
z->out = NULL;
if (!stbi__check_png_header(s)) return 0;
if (scan == STBI__SCAN_type) return 1;
for (;;) {
stbi__pngchunk c = stbi__get_chunk_header(s);
switch (c.type) {
case STBI__PNG_TYPE('C','g','B','I'):
is_iphone = 1;
stbi__skip(s, c.length);
break;
case STBI__PNG_TYPE('I','H','D','R'): {
int comp,filter;
if (!first) return stbi__err("multiple IHDR","Corrupt PNG");
first = 0;
if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG");
s->img_x = stbi__get32be(s);
s->img_y = stbi__get32be(s);
if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)");
if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)");
z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only");
color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG");
if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG");
if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG");
comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG");
filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG");
interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG");
if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG");
if (!pal_img_n) {
s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0);
if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode");
if (scan == STBI__SCAN_header) return 1;
} else {
// if paletted, then pal_n is our final components, and
// img_n is # components to decompress/filter.
s->img_n = 1;
if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG");
// if SCAN_header, have to scan to see if we have a tRNS
}
break;
}
case STBI__PNG_TYPE('P','L','T','E'): {
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG");
pal_len = c.length / 3;
if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG");
for (i=0; i < pal_len; ++i) {
palette[i*4+0] = stbi__get8(s);
palette[i*4+1] = stbi__get8(s);
palette[i*4+2] = stbi__get8(s);
palette[i*4+3] = 255;
}
break;
}
case STBI__PNG_TYPE('t','R','N','S'): {
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG");
if (pal_img_n) {
if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; }
if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG");
if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG");
pal_img_n = 4;
for (i=0; i < c.length; ++i)
palette[i*4+3] = stbi__get8(s);
} else {
if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG");
if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG");
has_trans = 1;
if (z->depth == 16) {
for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is
} else {
for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger
}
}
break;
}
case STBI__PNG_TYPE('I','D','A','T'): {
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG");
if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; }
if ((int)(ioff + c.length) < (int)ioff) return 0;
if (ioff + c.length > idata_limit) {
stbi__uint32 idata_limit_old = idata_limit;
stbi_uc *p;
if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096;
while (ioff + c.length > idata_limit)
idata_limit *= 2;
STBI_NOTUSED(idata_limit_old);
p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory");
z->idata = p;
}
if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG");
ioff += c.length;
break;
}
case STBI__PNG_TYPE('I','E','N','D'): {
stbi__uint32 raw_len, bpl;
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (scan != STBI__SCAN_load) return 1;
if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG");
// initial guess for decoded data size to avoid unnecessary reallocs
bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component
raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */;
z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone);
if (z->expanded == NULL) return 0; // zlib should set error
STBI_FREE(z->idata); z->idata = NULL;
if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans)
s->img_out_n = s->img_n+1;
else
s->img_out_n = s->img_n;
if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0;
if (has_trans) {
if (z->depth == 16) {
if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0;
} else {
if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0;
}
}
if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2)
stbi__de_iphone(z);
if (pal_img_n) {
// pal_img_n == 3 or 4
s->img_n = pal_img_n; // record the actual colors we had
s->img_out_n = pal_img_n;
if (req_comp >= 3) s->img_out_n = req_comp;
if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n))
return 0;
} else if (has_trans) {
// non-paletted image with tRNS -> source image has (constant) alpha
++s->img_n;
}
STBI_FREE(z->expanded); z->expanded = NULL;
// end of PNG chunk, read and skip CRC
stbi__get32be(s);
return 1;
}
default:
// if critical, fail
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if ((c.type & (1 << 29)) == 0) {
#ifndef STBI_NO_FAILURE_STRINGS
// not threadsafe
static char invalid_chunk[] = "XXXX PNG chunk not known";
invalid_chunk[0] = STBI__BYTECAST(c.type >> 24);
invalid_chunk[1] = STBI__BYTECAST(c.type >> 16);
invalid_chunk[2] = STBI__BYTECAST(c.type >> 8);
invalid_chunk[3] = STBI__BYTECAST(c.type >> 0);
#endif
return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type");
}
stbi__skip(s, c.length);
break;
}
// end of PNG chunk, read and skip CRC
stbi__get32be(s);
}
}
static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri)
{
void *result=NULL;
if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) {
if (p->depth <= 8)
ri->bits_per_channel = 8;
else if (p->depth == 16)
ri->bits_per_channel = 16;
else
return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth");
result = p->out;
p->out = NULL;
if (req_comp && req_comp != p->s->img_out_n) {
if (ri->bits_per_channel == 8)
result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y);
else
result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y);
p->s->img_out_n = req_comp;
if (result == NULL) return result;
}
*x = p->s->img_x;
*y = p->s->img_y;
if (n) *n = p->s->img_n;
}
STBI_FREE(p->out); p->out = NULL;
STBI_FREE(p->expanded); p->expanded = NULL;
STBI_FREE(p->idata); p->idata = NULL;
return result;
}
static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
stbi__png p;
p.s = s;
return stbi__do_png(&p, x,y,comp,req_comp, ri);
}
static int stbi__png_test(stbi__context *s)
{
int r;
r = stbi__check_png_header(s);
stbi__rewind(s);
return r;
}
static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp)
{
if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) {
stbi__rewind( p->s );
return 0;
}
if (x) *x = p->s->img_x;
if (y) *y = p->s->img_y;
if (comp) *comp = p->s->img_n;
return 1;
}
static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp)
{
stbi__png p;
p.s = s;
return stbi__png_info_raw(&p, x, y, comp);
}
static int stbi__png_is16(stbi__context *s)
{
stbi__png p;
p.s = s;
if (!stbi__png_info_raw(&p, NULL, NULL, NULL))
return 0;
if (p.depth != 16) {
stbi__rewind(p.s);
return 0;
}
return 1;
}
#endif
// Microsoft/Windows BMP image
#ifndef STBI_NO_BMP
static int stbi__bmp_test_raw(stbi__context *s)
{
int r;
int sz;
if (stbi__get8(s) != 'B') return 0;
if (stbi__get8(s) != 'M') return 0;
stbi__get32le(s); // discard filesize
stbi__get16le(s); // discard reserved
stbi__get16le(s); // discard reserved
stbi__get32le(s); // discard data offset
sz = stbi__get32le(s);
r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124);
return r;
}
static int stbi__bmp_test(stbi__context *s)
{
int r = stbi__bmp_test_raw(s);
stbi__rewind(s);
return r;
}
// returns 0..31 for the highest set bit
static int stbi__high_bit(unsigned int z)
{
int n=0;
if (z == 0) return -1;
if (z >= 0x10000) { n += 16; z >>= 16; }
if (z >= 0x00100) { n += 8; z >>= 8; }
if (z >= 0x00010) { n += 4; z >>= 4; }
if (z >= 0x00004) { n += 2; z >>= 2; }
if (z >= 0x00002) { n += 1;/* >>= 1;*/ }
return n;
}
static int stbi__bitcount(unsigned int a)
{
a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2
a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4
a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits
a = (a + (a >> 8)); // max 16 per 8 bits
a = (a + (a >> 16)); // max 32 per 8 bits
return a & 0xff;
}
// extract an arbitrarily-aligned N-bit value (N=bits)
// from v, and then make it 8-bits long and fractionally
// extend it to full full range.
static int stbi__shiftsigned(unsigned int v, int shift, int bits)
{
static unsigned int mul_table[9] = {
0,
0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/,
0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/,
};
static unsigned int shift_table[9] = {
0, 0,0,1,0,2,4,6,0,
};
if (shift < 0)
v <<= -shift;
else
v >>= shift;
STBI_ASSERT(v < 256);
v >>= (8-bits);
STBI_ASSERT(bits >= 0 && bits <= 8);
return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits];
}
typedef struct
{
int bpp, offset, hsz;
unsigned int mr,mg,mb,ma, all_a;
int extra_read;
} stbi__bmp_data;
static int stbi__bmp_set_mask_defaults(stbi__bmp_data *info, int compress)
{
// BI_BITFIELDS specifies masks explicitly, don't override
if (compress == 3)
return 1;
if (compress == 0) {
if (info->bpp == 16) {
info->mr = 31u << 10;
info->mg = 31u << 5;
info->mb = 31u << 0;
} else if (info->bpp == 32) {
info->mr = 0xffu << 16;
info->mg = 0xffu << 8;
info->mb = 0xffu << 0;
info->ma = 0xffu << 24;
info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0
} else {
// otherwise, use defaults, which is all-0
info->mr = info->mg = info->mb = info->ma = 0;
}
return 1;
}
return 0; // error
}
static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info)
{
int hsz;
if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP");
stbi__get32le(s); // discard filesize
stbi__get16le(s); // discard reserved
stbi__get16le(s); // discard reserved
info->offset = stbi__get32le(s);
info->hsz = hsz = stbi__get32le(s);
info->mr = info->mg = info->mb = info->ma = 0;
info->extra_read = 14;
if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP");
if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown");
if (hsz == 12) {
s->img_x = stbi__get16le(s);
s->img_y = stbi__get16le(s);
} else {
s->img_x = stbi__get32le(s);
s->img_y = stbi__get32le(s);
}
if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP");
info->bpp = stbi__get16le(s);
if (hsz != 12) {
int compress = stbi__get32le(s);
if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE");
if (compress >= 4) return stbi__errpuc("BMP JPEG/PNG", "BMP type not supported: unsupported compression"); // this includes PNG/JPEG modes
if (compress == 3 && info->bpp != 16 && info->bpp != 32) return stbi__errpuc("bad BMP", "bad BMP"); // bitfields requires 16 or 32 bits/pixel
stbi__get32le(s); // discard sizeof
stbi__get32le(s); // discard hres
stbi__get32le(s); // discard vres
stbi__get32le(s); // discard colorsused
stbi__get32le(s); // discard max important
if (hsz == 40 || hsz == 56) {
if (hsz == 56) {
stbi__get32le(s);
stbi__get32le(s);
stbi__get32le(s);
stbi__get32le(s);
}
if (info->bpp == 16 || info->bpp == 32) {
if (compress == 0) {
stbi__bmp_set_mask_defaults(info, compress);
} else if (compress == 3) {
info->mr = stbi__get32le(s);
info->mg = stbi__get32le(s);
info->mb = stbi__get32le(s);
info->extra_read += 12;
// not documented, but generated by photoshop and handled by mspaint
if (info->mr == info->mg && info->mg == info->mb) {
// ?!?!?
return stbi__errpuc("bad BMP", "bad BMP");
}
} else
return stbi__errpuc("bad BMP", "bad BMP");
}
} else {
// V4/V5 header
int i;
if (hsz != 108 && hsz != 124)
return stbi__errpuc("bad BMP", "bad BMP");
info->mr = stbi__get32le(s);
info->mg = stbi__get32le(s);
info->mb = stbi__get32le(s);
info->ma = stbi__get32le(s);
if (compress != 3) // override mr/mg/mb unless in BI_BITFIELDS mode, as per docs
stbi__bmp_set_mask_defaults(info, compress);
stbi__get32le(s); // discard color space
for (i=0; i < 12; ++i)
stbi__get32le(s); // discard color space parameters
if (hsz == 124) {
stbi__get32le(s); // discard rendering intent
stbi__get32le(s); // discard offset of profile data
stbi__get32le(s); // discard size of profile data
stbi__get32le(s); // discard reserved
}
}
}
return (void *) 1;
}
static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
stbi_uc *out;
unsigned int mr=0,mg=0,mb=0,ma=0, all_a;
stbi_uc pal[256][4];
int psize=0,i,j,width;
int flip_vertically, pad, target;
stbi__bmp_data info;
STBI_NOTUSED(ri);
info.all_a = 255;
if (stbi__bmp_parse_header(s, &info) == NULL)
return NULL; // error code already set
flip_vertically = ((int) s->img_y) > 0;
s->img_y = abs((int) s->img_y);
if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
mr = info.mr;
mg = info.mg;
mb = info.mb;
ma = info.ma;
all_a = info.all_a;
if (info.hsz == 12) {
if (info.bpp < 24)
psize = (info.offset - info.extra_read - 24) / 3;
} else {
if (info.bpp < 16)
psize = (info.offset - info.extra_read - info.hsz) >> 2;
}
if (psize == 0) {
if (info.offset != s->callback_already_read + (s->img_buffer - s->img_buffer_original)) {
return stbi__errpuc("bad offset", "Corrupt BMP");
}
}
if (info.bpp == 24 && ma == 0xff000000)
s->img_n = 3;
else
s->img_n = ma ? 4 : 3;
if (req_comp && req_comp >= 3) // we can directly decode 3 or 4
target = req_comp;
else
target = s->img_n; // if they want monochrome, we'll post-convert
// sanity-check size
if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0))
return stbi__errpuc("too large", "Corrupt BMP");
out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0);
if (!out) return stbi__errpuc("outofmem", "Out of memory");
if (info.bpp < 16) {
int z=0;
if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); }
for (i=0; i < psize; ++i) {
pal[i][2] = stbi__get8(s);
pal[i][1] = stbi__get8(s);
pal[i][0] = stbi__get8(s);
if (info.hsz != 12) stbi__get8(s);
pal[i][3] = 255;
}
stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4));
if (info.bpp == 1) width = (s->img_x + 7) >> 3;
else if (info.bpp == 4) width = (s->img_x + 1) >> 1;
else if (info.bpp == 8) width = s->img_x;
else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); }
pad = (-width)&3;
if (info.bpp == 1) {
for (j=0; j < (int) s->img_y; ++j) {
int bit_offset = 7, v = stbi__get8(s);
for (i=0; i < (int) s->img_x; ++i) {
int color = (v>>bit_offset)&0x1;
out[z++] = pal[color][0];
out[z++] = pal[color][1];
out[z++] = pal[color][2];
if (target == 4) out[z++] = 255;
if (i+1 == (int) s->img_x) break;
if((--bit_offset) < 0) {
bit_offset = 7;
v = stbi__get8(s);
}
}
stbi__skip(s, pad);
}
} else {
for (j=0; j < (int) s->img_y; ++j) {
for (i=0; i < (int) s->img_x; i += 2) {
int v=stbi__get8(s),v2=0;
if (info.bpp == 4) {
v2 = v & 15;
v >>= 4;
}
out[z++] = pal[v][0];
out[z++] = pal[v][1];
out[z++] = pal[v][2];
if (target == 4) out[z++] = 255;
if (i+1 == (int) s->img_x) break;
v = (info.bpp == 8) ? stbi__get8(s) : v2;
out[z++] = pal[v][0];
out[z++] = pal[v][1];
out[z++] = pal[v][2];
if (target == 4) out[z++] = 255;
}
stbi__skip(s, pad);
}
}
} else {
int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0;
int z = 0;
int easy=0;
stbi__skip(s, info.offset - info.extra_read - info.hsz);
if (info.bpp == 24) width = 3 * s->img_x;
else if (info.bpp == 16) width = 2*s->img_x;
else /* bpp = 32 and pad = 0 */ width=0;
pad = (-width) & 3;
if (info.bpp == 24) {
easy = 1;
} else if (info.bpp == 32) {
if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000)
easy = 2;
}
if (!easy) {
if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); }
// right shift amt to put high bit in position #7
rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr);
gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg);
bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb);
ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma);
if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); }
}
for (j=0; j < (int) s->img_y; ++j) {
if (easy) {
for (i=0; i < (int) s->img_x; ++i) {
unsigned char a;
out[z+2] = stbi__get8(s);
out[z+1] = stbi__get8(s);
out[z+0] = stbi__get8(s);
z += 3;
a = (easy == 2 ? stbi__get8(s) : 255);
all_a |= a;
if (target == 4) out[z++] = a;
}
} else {
int bpp = info.bpp;
for (i=0; i < (int) s->img_x; ++i) {
stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s));
unsigned int a;
out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount));
out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount));
out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount));
a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255);
all_a |= a;
if (target == 4) out[z++] = STBI__BYTECAST(a);
}
}
stbi__skip(s, pad);
}
}
// if alpha channel is all 0s, replace with all 255s
if (target == 4 && all_a == 0)
for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4)
out[i] = 255;
if (flip_vertically) {
stbi_uc t;
for (j=0; j < (int) s->img_y>>1; ++j) {
stbi_uc *p1 = out + j *s->img_x*target;
stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target;
for (i=0; i < (int) s->img_x*target; ++i) {
t = p1[i]; p1[i] = p2[i]; p2[i] = t;
}
}
}
if (req_comp && req_comp != target) {
out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y);
if (out == NULL) return out; // stbi__convert_format frees input on failure
}
*x = s->img_x;
*y = s->img_y;
if (comp) *comp = s->img_n;
return out;
}
#endif
// Targa Truevision - TGA
// by Jonathan Dummer
#ifndef STBI_NO_TGA
// returns STBI_rgb or whatever, 0 on error
static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16)
{
// only RGB or RGBA (incl. 16bit) or grey allowed
if (is_rgb16) *is_rgb16 = 0;
switch(bits_per_pixel) {
case 8: return STBI_grey;
case 16: if(is_grey) return STBI_grey_alpha;
// fallthrough
case 15: if(is_rgb16) *is_rgb16 = 1;
return STBI_rgb;
case 24: // fallthrough
case 32: return bits_per_pixel/8;
default: return 0;
}
}
static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp)
{
int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp;
int sz, tga_colormap_type;
stbi__get8(s); // discard Offset
tga_colormap_type = stbi__get8(s); // colormap type
if( tga_colormap_type > 1 ) {
stbi__rewind(s);
return 0; // only RGB or indexed allowed
}
tga_image_type = stbi__get8(s); // image type
if ( tga_colormap_type == 1 ) { // colormapped (paletted) image
if (tga_image_type != 1 && tga_image_type != 9) {
stbi__rewind(s);
return 0;
}
stbi__skip(s,4); // skip index of first colormap entry and number of entries
sz = stbi__get8(s); // check bits per palette color entry
if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) {
stbi__rewind(s);
return 0;
}
stbi__skip(s,4); // skip image x and y origin
tga_colormap_bpp = sz;
} else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE
if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) {
stbi__rewind(s);
return 0; // only RGB or grey allowed, +/- RLE
}
stbi__skip(s,9); // skip colormap specification and image x/y origin
tga_colormap_bpp = 0;
}
tga_w = stbi__get16le(s);
if( tga_w < 1 ) {
stbi__rewind(s);
return 0; // test width
}
tga_h = stbi__get16le(s);
if( tga_h < 1 ) {
stbi__rewind(s);
return 0; // test height
}
tga_bits_per_pixel = stbi__get8(s); // bits per pixel
stbi__get8(s); // ignore alpha bits
if (tga_colormap_bpp != 0) {
if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) {
// when using a colormap, tga_bits_per_pixel is the size of the indexes
// I don't think anything but 8 or 16bit indexes makes sense
stbi__rewind(s);
return 0;
}
tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL);
} else {
tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL);
}
if(!tga_comp) {
stbi__rewind(s);
return 0;
}
if (x) *x = tga_w;
if (y) *y = tga_h;
if (comp) *comp = tga_comp;
return 1; // seems to have passed everything
}
static int stbi__tga_test(stbi__context *s)
{
int res = 0;
int sz, tga_color_type;
stbi__get8(s); // discard Offset
tga_color_type = stbi__get8(s); // color type
if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed
sz = stbi__get8(s); // image type
if ( tga_color_type == 1 ) { // colormapped (paletted) image
if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9
stbi__skip(s,4); // skip index of first colormap entry and number of entries
sz = stbi__get8(s); // check bits per palette color entry
if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd;
stbi__skip(s,4); // skip image x and y origin
} else { // "normal" image w/o colormap
if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE
stbi__skip(s,9); // skip colormap specification and image x/y origin
}
if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width
if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height
sz = stbi__get8(s); // bits per pixel
if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index
if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd;
res = 1; // if we got this far, everything's good and we can return 1 instead of 0
errorEnd:
stbi__rewind(s);
return res;
}
// read 16bit value and convert to 24bit RGB
static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out)
{
stbi__uint16 px = (stbi__uint16)stbi__get16le(s);
stbi__uint16 fiveBitMask = 31;
// we have 3 channels with 5bits each
int r = (px >> 10) & fiveBitMask;
int g = (px >> 5) & fiveBitMask;
int b = px & fiveBitMask;
// Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later
out[0] = (stbi_uc)((r * 255)/31);
out[1] = (stbi_uc)((g * 255)/31);
out[2] = (stbi_uc)((b * 255)/31);
// some people claim that the most significant bit might be used for alpha
// (possibly if an alpha-bit is set in the "image descriptor byte")
// but that only made 16bit test images completely translucent..
// so let's treat all 15 and 16bit TGAs as RGB with no alpha.
}
static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
// read in the TGA header stuff
int tga_offset = stbi__get8(s);
int tga_indexed = stbi__get8(s);
int tga_image_type = stbi__get8(s);
int tga_is_RLE = 0;
int tga_palette_start = stbi__get16le(s);
int tga_palette_len = stbi__get16le(s);
int tga_palette_bits = stbi__get8(s);
int tga_x_origin = stbi__get16le(s);
int tga_y_origin = stbi__get16le(s);
int tga_width = stbi__get16le(s);
int tga_height = stbi__get16le(s);
int tga_bits_per_pixel = stbi__get8(s);
int tga_comp, tga_rgb16=0;
int tga_inverted = stbi__get8(s);
// int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?)
// image data
unsigned char *tga_data;
unsigned char *tga_palette = NULL;
int i, j;
unsigned char raw_data[4] = {0};
int RLE_count = 0;
int RLE_repeating = 0;
int read_next_pixel = 1;
STBI_NOTUSED(ri);
STBI_NOTUSED(tga_x_origin); // @TODO
STBI_NOTUSED(tga_y_origin); // @TODO
if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
// do a tiny bit of precessing
if ( tga_image_type >= 8 )
{
tga_image_type -= 8;
tga_is_RLE = 1;
}
tga_inverted = 1 - ((tga_inverted >> 5) & 1);
// If I'm paletted, then I'll use the number of bits from the palette
if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16);
else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16);
if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency
return stbi__errpuc("bad format", "Can't find out TGA pixelformat");
// tga info
*x = tga_width;
*y = tga_height;
if (comp) *comp = tga_comp;
if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0))
return stbi__errpuc("too large", "Corrupt TGA");
tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0);
if (!tga_data) return stbi__errpuc("outofmem", "Out of memory");
// skip to the data's starting position (offset usually = 0)
stbi__skip(s, tga_offset );
if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) {
for (i=0; i < tga_height; ++i) {
int row = tga_inverted ? tga_height -i - 1 : i;
stbi_uc *tga_row = tga_data + row*tga_width*tga_comp;
stbi__getn(s, tga_row, tga_width * tga_comp);
}
} else {
// do I need to load a palette?
if ( tga_indexed)
{
if (tga_palette_len == 0) { /* you have to have at least one entry! */
STBI_FREE(tga_data);
return stbi__errpuc("bad palette", "Corrupt TGA");
}
// any data to skip? (offset usually = 0)
stbi__skip(s, tga_palette_start );
// load the palette
tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0);
if (!tga_palette) {
STBI_FREE(tga_data);
return stbi__errpuc("outofmem", "Out of memory");
}
if (tga_rgb16) {
stbi_uc *pal_entry = tga_palette;
STBI_ASSERT(tga_comp == STBI_rgb);
for (i=0; i < tga_palette_len; ++i) {
stbi__tga_read_rgb16(s, pal_entry);
pal_entry += tga_comp;
}
} else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) {
STBI_FREE(tga_data);
STBI_FREE(tga_palette);
return stbi__errpuc("bad palette", "Corrupt TGA");
}
}
// load the data
for (i=0; i < tga_width * tga_height; ++i)
{
// if I'm in RLE mode, do I need to get a RLE stbi__pngchunk?
if ( tga_is_RLE )
{
if ( RLE_count == 0 )
{
// yep, get the next byte as a RLE command
int RLE_cmd = stbi__get8(s);
RLE_count = 1 + (RLE_cmd & 127);
RLE_repeating = RLE_cmd >> 7;
read_next_pixel = 1;
} else if ( !RLE_repeating )
{
read_next_pixel = 1;
}
} else
{
read_next_pixel = 1;
}
// OK, if I need to read a pixel, do it now
if ( read_next_pixel )
{
// load however much data we did have
if ( tga_indexed )
{
// read in index, then perform the lookup
int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s);
if ( pal_idx >= tga_palette_len ) {
// invalid index
pal_idx = 0;
}
pal_idx *= tga_comp;
for (j = 0; j < tga_comp; ++j) {
raw_data[j] = tga_palette[pal_idx+j];
}
} else if(tga_rgb16) {
STBI_ASSERT(tga_comp == STBI_rgb);
stbi__tga_read_rgb16(s, raw_data);
} else {
// read in the data raw
for (j = 0; j < tga_comp; ++j) {
raw_data[j] = stbi__get8(s);
}
}
// clear the reading flag for the next pixel
read_next_pixel = 0;
} // end of reading a pixel
// copy data
for (j = 0; j < tga_comp; ++j)
tga_data[i*tga_comp+j] = raw_data[j];
// in case we're in RLE mode, keep counting down
--RLE_count;
}
// do I need to invert the image?
if ( tga_inverted )
{
for (j = 0; j*2 < tga_height; ++j)
{
int index1 = j * tga_width * tga_comp;
int index2 = (tga_height - 1 - j) * tga_width * tga_comp;
for (i = tga_width * tga_comp; i > 0; --i)
{
unsigned char temp = tga_data[index1];
tga_data[index1] = tga_data[index2];
tga_data[index2] = temp;
++index1;
++index2;
}
}
}
// clear my palette, if I had one
if ( tga_palette != NULL )
{
STBI_FREE( tga_palette );
}
}
// swap RGB - if the source data was RGB16, it already is in the right order
if (tga_comp >= 3 && !tga_rgb16)
{
unsigned char* tga_pixel = tga_data;
for (i=0; i < tga_width * tga_height; ++i)
{
unsigned char temp = tga_pixel[0];
tga_pixel[0] = tga_pixel[2];
tga_pixel[2] = temp;
tga_pixel += tga_comp;
}
}
// convert to target component count
if (req_comp && req_comp != tga_comp)
tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height);
// the things I do to get rid of an error message, and yet keep
// Microsoft's C compilers happy... [8^(
tga_palette_start = tga_palette_len = tga_palette_bits =
tga_x_origin = tga_y_origin = 0;
STBI_NOTUSED(tga_palette_start);
// OK, done
return tga_data;
}
#endif
// *************************************************************************************************
// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB
#ifndef STBI_NO_PSD
static int stbi__psd_test(stbi__context *s)
{
int r = (stbi__get32be(s) == 0x38425053);
stbi__rewind(s);
return r;
}
static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount)
{
int count, nleft, len;
count = 0;
while ((nleft = pixelCount - count) > 0) {
len = stbi__get8(s);
if (len == 128) {
// No-op.
} else if (len < 128) {
// Copy next len+1 bytes literally.
len++;
if (len > nleft) return 0; // corrupt data
count += len;
while (len) {
*p = stbi__get8(s);
p += 4;
len--;
}
} else if (len > 128) {
stbi_uc val;
// Next -len+1 bytes in the dest are replicated from next source byte.
// (Interpret len as a negative 8-bit int.)
len = 257 - len;
if (len > nleft) return 0; // corrupt data
val = stbi__get8(s);
count += len;
while (len) {
*p = val;
p += 4;
len--;
}
}
}
return 1;
}
static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc)
{
int pixelCount;
int channelCount, compression;
int channel, i;
int bitdepth;
int w,h;
stbi_uc *out;
STBI_NOTUSED(ri);
// Check identifier
if (stbi__get32be(s) != 0x38425053) // "8BPS"
return stbi__errpuc("not PSD", "Corrupt PSD image");
// Check file type version.
if (stbi__get16be(s) != 1)
return stbi__errpuc("wrong version", "Unsupported version of PSD image");
// Skip 6 reserved bytes.
stbi__skip(s, 6 );
// Read the number of channels (R, G, B, A, etc).
channelCount = stbi__get16be(s);
if (channelCount < 0 || channelCount > 16)
return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image");
// Read the rows and columns of the image.
h = stbi__get32be(s);
w = stbi__get32be(s);
if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
// Make sure the depth is 8 bits.
bitdepth = stbi__get16be(s);
if (bitdepth != 8 && bitdepth != 16)
return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit");
// Make sure the color mode is RGB.
// Valid options are:
// 0: Bitmap
// 1: Grayscale
// 2: Indexed color
// 3: RGB color
// 4: CMYK color
// 7: Multichannel
// 8: Duotone
// 9: Lab color
if (stbi__get16be(s) != 3)
return stbi__errpuc("wrong color format", "PSD is not in RGB color format");
// Skip the Mode Data. (It's the palette for indexed color; other info for other modes.)
stbi__skip(s,stbi__get32be(s) );
// Skip the image resources. (resolution, pen tool paths, etc)
stbi__skip(s, stbi__get32be(s) );
// Skip the reserved data.
stbi__skip(s, stbi__get32be(s) );
// Find out if the data is compressed.
// Known values:
// 0: no compression
// 1: RLE compressed
compression = stbi__get16be(s);
if (compression > 1)
return stbi__errpuc("bad compression", "PSD has an unknown compression format");
// Check size
if (!stbi__mad3sizes_valid(4, w, h, 0))
return stbi__errpuc("too large", "Corrupt PSD");
// Create the destination image.
if (!compression && bitdepth == 16 && bpc == 16) {
out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0);
ri->bits_per_channel = 16;
} else
out = (stbi_uc *) stbi__malloc(4 * w*h);
if (!out) return stbi__errpuc("outofmem", "Out of memory");
pixelCount = w*h;
// Initialize the data to zero.
//memset( out, 0, pixelCount * 4 );
// Finally, the image data.
if (compression) {
// RLE as used by .PSD and .TIFF
// Loop until you get the number of unpacked bytes you are expecting:
// Read the next source byte into n.
// If n is between 0 and 127 inclusive, copy the next n+1 bytes literally.
// Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times.
// Else if n is 128, noop.
// Endloop
// The RLE-compressed data is preceded by a 2-byte data count for each row in the data,
// which we're going to just skip.
stbi__skip(s, h * channelCount * 2 );
// Read the RLE data by channel.
for (channel = 0; channel < 4; channel++) {
stbi_uc *p;
p = out+channel;
if (channel >= channelCount) {
// Fill this channel with default data.
for (i = 0; i < pixelCount; i++, p += 4)
*p = (channel == 3 ? 255 : 0);
} else {
// Read the RLE data.
if (!stbi__psd_decode_rle(s, p, pixelCount)) {
STBI_FREE(out);
return stbi__errpuc("corrupt", "bad RLE data");
}
}
}
} else {
// We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...)
// where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image.
// Read the data by channel.
for (channel = 0; channel < 4; channel++) {
if (channel >= channelCount) {
// Fill this channel with default data.
if (bitdepth == 16 && bpc == 16) {
stbi__uint16 *q = ((stbi__uint16 *) out) + channel;
stbi__uint16 val = channel == 3 ? 65535 : 0;
for (i = 0; i < pixelCount; i++, q += 4)
*q = val;
} else {
stbi_uc *p = out+channel;
stbi_uc val = channel == 3 ? 255 : 0;
for (i = 0; i < pixelCount; i++, p += 4)
*p = val;
}
} else {
if (ri->bits_per_channel == 16) { // output bpc
stbi__uint16 *q = ((stbi__uint16 *) out) + channel;
for (i = 0; i < pixelCount; i++, q += 4)
*q = (stbi__uint16) stbi__get16be(s);
} else {
stbi_uc *p = out+channel;
if (bitdepth == 16) { // input bpc
for (i = 0; i < pixelCount; i++, p += 4)
*p = (stbi_uc) (stbi__get16be(s) >> 8);
} else {
for (i = 0; i < pixelCount; i++, p += 4)
*p = stbi__get8(s);
}
}
}
}
}
// remove weird white matte from PSD
if (channelCount >= 4) {
if (ri->bits_per_channel == 16) {
for (i=0; i < w*h; ++i) {
stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i;
if (pixel[3] != 0 && pixel[3] != 65535) {
float a = pixel[3] / 65535.0f;
float ra = 1.0f / a;
float inv_a = 65535.0f * (1 - ra);
pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a);
pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a);
pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a);
}
}
} else {
for (i=0; i < w*h; ++i) {
unsigned char *pixel = out + 4*i;
if (pixel[3] != 0 && pixel[3] != 255) {
float a = pixel[3] / 255.0f;
float ra = 1.0f / a;
float inv_a = 255.0f * (1 - ra);
pixel[0] = (unsigned char) (pixel[0]*ra + inv_a);
pixel[1] = (unsigned char) (pixel[1]*ra + inv_a);
pixel[2] = (unsigned char) (pixel[2]*ra + inv_a);
}
}
}
}
// convert to desired output format
if (req_comp && req_comp != 4) {
if (ri->bits_per_channel == 16)
out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h);
else
out = stbi__convert_format(out, 4, req_comp, w, h);
if (out == NULL) return out; // stbi__convert_format frees input on failure
}
if (comp) *comp = 4;
*y = h;
*x = w;
return out;
}
#endif
// *************************************************************************************************
// Softimage PIC loader
// by Tom Seddon
//
// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format
// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/
#ifndef STBI_NO_PIC
static int stbi__pic_is4(stbi__context *s,const char *str)
{
int i;
for (i=0; i<4; ++i)
if (stbi__get8(s) != (stbi_uc)str[i])
return 0;
return 1;
}
static int stbi__pic_test_core(stbi__context *s)
{
int i;
if (!stbi__pic_is4(s,"\x53\x80\xF6\x34"))
return 0;
for(i=0;i<84;++i)
stbi__get8(s);
if (!stbi__pic_is4(s,"PICT"))
return 0;
return 1;
}
typedef struct
{
stbi_uc size,type,channel;
} stbi__pic_packet;
static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest)
{
int mask=0x80, i;
for (i=0; i<4; ++i, mask>>=1) {
if (channel & mask) {
if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short");
dest[i]=stbi__get8(s);
}
}
return dest;
}
static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src)
{
int mask=0x80,i;
for (i=0;i<4; ++i, mask>>=1)
if (channel&mask)
dest[i]=src[i];
}
static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result)
{
int act_comp=0,num_packets=0,y,chained;
stbi__pic_packet packets[10];
// this will (should...) cater for even some bizarre stuff like having data
// for the same channel in multiple packets.
do {
stbi__pic_packet *packet;
if (num_packets==sizeof(packets)/sizeof(packets[0]))
return stbi__errpuc("bad format","too many packets");
packet = &packets[num_packets++];
chained = stbi__get8(s);
packet->size = stbi__get8(s);
packet->type = stbi__get8(s);
packet->channel = stbi__get8(s);
act_comp |= packet->channel;
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)");
if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp");
} while (chained);
*comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel?
for(y=0; y<height; ++y) {
int packet_idx;
for(packet_idx=0; packet_idx < num_packets; ++packet_idx) {
stbi__pic_packet *packet = &packets[packet_idx];
stbi_uc *dest = result+y*width*4;
switch (packet->type) {
default:
return stbi__errpuc("bad format","packet has bad compression type");
case 0: {//uncompressed
int x;
for(x=0;x<width;++x, dest+=4)
if (!stbi__readval(s,packet->channel,dest))
return 0;
break;
}
case 1://Pure RLE
{
int left=width, i;
while (left>0) {
stbi_uc count,value[4];
count=stbi__get8(s);
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)");
if (count > left)
count = (stbi_uc) left;
if (!stbi__readval(s,packet->channel,value)) return 0;
for(i=0; i<count; ++i,dest+=4)
stbi__copyval(packet->channel,dest,value);
left -= count;
}
}
break;
case 2: {//Mixed RLE
int left=width;
while (left>0) {
int count = stbi__get8(s), i;
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)");
if (count >= 128) { // Repeated
stbi_uc value[4];
if (count==128)
count = stbi__get16be(s);
else
count -= 127;
if (count > left)
return stbi__errpuc("bad file","scanline overrun");
if (!stbi__readval(s,packet->channel,value))
return 0;
for(i=0;i<count;++i, dest += 4)
stbi__copyval(packet->channel,dest,value);
} else { // Raw
++count;
if (count>left) return stbi__errpuc("bad file","scanline overrun");
for(i=0;i<count;++i, dest+=4)
if (!stbi__readval(s,packet->channel,dest))
return 0;
}
left-=count;
}
break;
}
}
}
}
return result;
}
static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri)
{
stbi_uc *result;
int i, x,y, internal_comp;
STBI_NOTUSED(ri);
if (!comp) comp = &internal_comp;
for (i=0; i<92; ++i)
stbi__get8(s);
x = stbi__get16be(s);
y = stbi__get16be(s);
if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)");
if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode");
stbi__get32be(s); //skip `ratio'
stbi__get16be(s); //skip `fields'
stbi__get16be(s); //skip `pad'
// intermediate buffer is RGBA
result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0);
if (!result) return stbi__errpuc("outofmem", "Out of memory");
memset(result, 0xff, x*y*4);
if (!stbi__pic_load_core(s,x,y,comp, result)) {
STBI_FREE(result);
result=0;
}
*px = x;
*py = y;
if (req_comp == 0) req_comp = *comp;
result=stbi__convert_format(result,4,req_comp,x,y);
return result;
}
static int stbi__pic_test(stbi__context *s)
{
int r = stbi__pic_test_core(s);
stbi__rewind(s);
return r;
}
#endif
// *************************************************************************************************
// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb
#ifndef STBI_NO_GIF
typedef struct
{
stbi__int16 prefix;
stbi_uc first;
stbi_uc suffix;
} stbi__gif_lzw;
typedef struct
{
int w,h;
stbi_uc *out; // output buffer (always 4 components)
stbi_uc *background; // The current "background" as far as a gif is concerned
stbi_uc *history;
int flags, bgindex, ratio, transparent, eflags;
stbi_uc pal[256][4];
stbi_uc lpal[256][4];
stbi__gif_lzw codes[8192];
stbi_uc *color_table;
int parse, step;
int lflags;
int start_x, start_y;
int max_x, max_y;
int cur_x, cur_y;
int line_size;
int delay;
} stbi__gif;
static int stbi__gif_test_raw(stbi__context *s)
{
int sz;
if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0;
sz = stbi__get8(s);
if (sz != '9' && sz != '7') return 0;
if (stbi__get8(s) != 'a') return 0;
return 1;
}
static int stbi__gif_test(stbi__context *s)
{
int r = stbi__gif_test_raw(s);
stbi__rewind(s);
return r;
}
static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp)
{
int i;
for (i=0; i < num_entries; ++i) {
pal[i][2] = stbi__get8(s);
pal[i][1] = stbi__get8(s);
pal[i][0] = stbi__get8(s);
pal[i][3] = transp == i ? 0 : 255;
}
}
static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info)
{
stbi_uc version;
if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8')
return stbi__err("not GIF", "Corrupt GIF");
version = stbi__get8(s);
if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF");
if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF");
stbi__g_failure_reason = "";
g->w = stbi__get16le(s);
g->h = stbi__get16le(s);
g->flags = stbi__get8(s);
g->bgindex = stbi__get8(s);
g->ratio = stbi__get8(s);
g->transparent = -1;
if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)");
if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)");
if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments
if (is_info) return 1;
if (g->flags & 0x80)
stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1);
return 1;
}
static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp)
{
stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif));
if (!g) return stbi__err("outofmem", "Out of memory");
if (!stbi__gif_header(s, g, comp, 1)) {
STBI_FREE(g);
stbi__rewind( s );
return 0;
}
if (x) *x = g->w;
if (y) *y = g->h;
STBI_FREE(g);
return 1;
}
static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code)
{
stbi_uc *p, *c;
int idx;
// recurse to decode the prefixes, since the linked-list is backwards,
// and working backwards through an interleaved image would be nasty
if (g->codes[code].prefix >= 0)
stbi__out_gif_code(g, g->codes[code].prefix);
if (g->cur_y >= g->max_y) return;
idx = g->cur_x + g->cur_y;
p = &g->out[idx];
g->history[idx / 4] = 1;
c = &g->color_table[g->codes[code].suffix * 4];
if (c[3] > 128) { // don't render transparent pixels;
p[0] = c[2];
p[1] = c[1];
p[2] = c[0];
p[3] = c[3];
}
g->cur_x += 4;
if (g->cur_x >= g->max_x) {
g->cur_x = g->start_x;
g->cur_y += g->step;
while (g->cur_y >= g->max_y && g->parse > 0) {
g->step = (1 << g->parse) * g->line_size;
g->cur_y = g->start_y + (g->step >> 1);
--g->parse;
}
}
}
static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g)
{
stbi_uc lzw_cs;
stbi__int32 len, init_code;
stbi__uint32 first;
stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear;
stbi__gif_lzw *p;
lzw_cs = stbi__get8(s);
if (lzw_cs > 12) return NULL;
clear = 1 << lzw_cs;
first = 1;
codesize = lzw_cs + 1;
codemask = (1 << codesize) - 1;
bits = 0;
valid_bits = 0;
for (init_code = 0; init_code < clear; init_code++) {
g->codes[init_code].prefix = -1;
g->codes[init_code].first = (stbi_uc) init_code;
g->codes[init_code].suffix = (stbi_uc) init_code;
}
// support no starting clear code
avail = clear+2;
oldcode = -1;
len = 0;
for(;;) {
if (valid_bits < codesize) {
if (len == 0) {
len = stbi__get8(s); // start new block
if (len == 0)
return g->out;
}
--len;
bits |= (stbi__int32) stbi__get8(s) << valid_bits;
valid_bits += 8;
} else {
stbi__int32 code = bits & codemask;
bits >>= codesize;
valid_bits -= codesize;
// @OPTIMIZE: is there some way we can accelerate the non-clear path?
if (code == clear) { // clear code
codesize = lzw_cs + 1;
codemask = (1 << codesize) - 1;
avail = clear + 2;
oldcode = -1;
first = 0;
} else if (code == clear + 1) { // end of stream code
stbi__skip(s, len);
while ((len = stbi__get8(s)) > 0)
stbi__skip(s,len);
return g->out;
} else if (code <= avail) {
if (first) {
return stbi__errpuc("no clear code", "Corrupt GIF");
}
if (oldcode >= 0) {
p = &g->codes[avail++];
if (avail > 8192) {
return stbi__errpuc("too many codes", "Corrupt GIF");
}
p->prefix = (stbi__int16) oldcode;
p->first = g->codes[oldcode].first;
p->suffix = (code == avail) ? p->first : g->codes[code].first;
} else if (code == avail)
return stbi__errpuc("illegal code in raster", "Corrupt GIF");
stbi__out_gif_code(g, (stbi__uint16) code);
if ((avail & codemask) == 0 && avail <= 0x0FFF) {
codesize++;
codemask = (1 << codesize) - 1;
}
oldcode = code;
} else {
return stbi__errpuc("illegal code in raster", "Corrupt GIF");
}
}
}
}
// this function is designed to support animated gifs, although stb_image doesn't support it
// two back is the image from two frames ago, used for a very specific disposal format
static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back)
{
int dispose;
int first_frame;
int pi;
int pcount;
STBI_NOTUSED(req_comp);
// on first frame, any non-written pixels get the background colour (non-transparent)
first_frame = 0;
if (g->out == 0) {
if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header
if (!stbi__mad3sizes_valid(4, g->w, g->h, 0))
return stbi__errpuc("too large", "GIF image is too large");
pcount = g->w * g->h;
g->out = (stbi_uc *) stbi__malloc(4 * pcount);
g->background = (stbi_uc *) stbi__malloc(4 * pcount);
g->history = (stbi_uc *) stbi__malloc(pcount);
if (!g->out || !g->background || !g->history)
return stbi__errpuc("outofmem", "Out of memory");
// image is treated as "transparent" at the start - ie, nothing overwrites the current background;
// background colour is only used for pixels that are not rendered first frame, after that "background"
// color refers to the color that was there the previous frame.
memset(g->out, 0x00, 4 * pcount);
memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent)
memset(g->history, 0x00, pcount); // pixels that were affected previous frame
first_frame = 1;
} else {
// second frame - how do we dispose of the previous one?
dispose = (g->eflags & 0x1C) >> 2;
pcount = g->w * g->h;
if ((dispose == 3) && (two_back == 0)) {
dispose = 2; // if I don't have an image to revert back to, default to the old background
}
if (dispose == 3) { // use previous graphic
for (pi = 0; pi < pcount; ++pi) {
if (g->history[pi]) {
memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 );
}
}
} else if (dispose == 2) {
// restore what was changed last frame to background before that frame;
for (pi = 0; pi < pcount; ++pi) {
if (g->history[pi]) {
memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 );
}
}
} else {
// This is a non-disposal case eithe way, so just
// leave the pixels as is, and they will become the new background
// 1: do not dispose
// 0: not specified.
}
// background is what out is after the undoing of the previou frame;
memcpy( g->background, g->out, 4 * g->w * g->h );
}
// clear my history;
memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame
for (;;) {
int tag = stbi__get8(s);
switch (tag) {
case 0x2C: /* Image Descriptor */
{
stbi__int32 x, y, w, h;
stbi_uc *o;
x = stbi__get16le(s);
y = stbi__get16le(s);
w = stbi__get16le(s);
h = stbi__get16le(s);
if (((x + w) > (g->w)) || ((y + h) > (g->h)))
return stbi__errpuc("bad Image Descriptor", "Corrupt GIF");
g->line_size = g->w * 4;
g->start_x = x * 4;
g->start_y = y * g->line_size;
g->max_x = g->start_x + w * 4;
g->max_y = g->start_y + h * g->line_size;
g->cur_x = g->start_x;
g->cur_y = g->start_y;
// if the width of the specified rectangle is 0, that means
// we may not see *any* pixels or the image is malformed;
// to make sure this is caught, move the current y down to
// max_y (which is what out_gif_code checks).
if (w == 0)
g->cur_y = g->max_y;
g->lflags = stbi__get8(s);
if (g->lflags & 0x40) {
g->step = 8 * g->line_size; // first interlaced spacing
g->parse = 3;
} else {
g->step = g->line_size;
g->parse = 0;
}
if (g->lflags & 0x80) {
stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1);
g->color_table = (stbi_uc *) g->lpal;
} else if (g->flags & 0x80) {
g->color_table = (stbi_uc *) g->pal;
} else
return stbi__errpuc("missing color table", "Corrupt GIF");
o = stbi__process_gif_raster(s, g);
if (!o) return NULL;
// if this was the first frame,
pcount = g->w * g->h;
if (first_frame && (g->bgindex > 0)) {
// if first frame, any pixel not drawn to gets the background color
for (pi = 0; pi < pcount; ++pi) {
if (g->history[pi] == 0) {
g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be;
memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 );
}
}
}
return o;
}
case 0x21: // Comment Extension.
{
int len;
int ext = stbi__get8(s);
if (ext == 0xF9) { // Graphic Control Extension.
len = stbi__get8(s);
if (len == 4) {
g->eflags = stbi__get8(s);
g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths.
// unset old transparent
if (g->transparent >= 0) {
g->pal[g->transparent][3] = 255;
}
if (g->eflags & 0x01) {
g->transparent = stbi__get8(s);
if (g->transparent >= 0) {
g->pal[g->transparent][3] = 0;
}
} else {
// don't need transparent
stbi__skip(s, 1);
g->transparent = -1;
}
} else {
stbi__skip(s, len);
break;
}
}
while ((len = stbi__get8(s)) != 0) {
stbi__skip(s, len);
}
break;
}
case 0x3B: // gif stream termination code
return (stbi_uc *) s; // using '1' causes warning on some compilers
default:
return stbi__errpuc("unknown code", "Corrupt GIF");
}
}
}
static void *stbi__load_gif_main_outofmem(stbi__gif *g, stbi_uc *out, int **delays)
{
STBI_FREE(g->out);
STBI_FREE(g->history);
STBI_FREE(g->background);
if (out) STBI_FREE(out);
if (delays && *delays) STBI_FREE(*delays);
return stbi__errpuc("outofmem", "Out of memory");
}
static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
{
if (stbi__gif_test(s)) {
int layers = 0;
stbi_uc *u = 0;
stbi_uc *out = 0;
stbi_uc *two_back = 0;
stbi__gif g;
int stride;
int out_size = 0;
int delays_size = 0;
STBI_NOTUSED(out_size);
STBI_NOTUSED(delays_size);
memset(&g, 0, sizeof(g));
if (delays) {
*delays = 0;
}
do {
u = stbi__gif_load_next(s, &g, comp, req_comp, two_back);
if (u == (stbi_uc *) s) u = 0; // end of animated gif marker
if (u) {
*x = g.w;
*y = g.h;
++layers;
stride = g.w * g.h * 4;
if (out) {
void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride );
if (!tmp)
return stbi__load_gif_main_outofmem(&g, out, delays);
else {
out = (stbi_uc*) tmp;
out_size = layers * stride;
}
if (delays) {
int *new_delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers );
if (!new_delays)
return stbi__load_gif_main_outofmem(&g, out, delays);
*delays = new_delays;
delays_size = layers * sizeof(int);
}
} else {
out = (stbi_uc*)stbi__malloc( layers * stride );
if (!out)
return stbi__load_gif_main_outofmem(&g, out, delays);
out_size = layers * stride;
if (delays) {
*delays = (int*) stbi__malloc( layers * sizeof(int) );
if (!*delays)
return stbi__load_gif_main_outofmem(&g, out, delays);
delays_size = layers * sizeof(int);
}
}
memcpy( out + ((layers - 1) * stride), u, stride );
if (layers >= 2) {
two_back = out - 2 * stride;
}
if (delays) {
(*delays)[layers - 1U] = g.delay;
}
}
} while (u != 0);
// free temp buffer;
STBI_FREE(g.out);
STBI_FREE(g.history);
STBI_FREE(g.background);
// do the final conversion after loading everything;
if (req_comp && req_comp != 4)
out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h);
*z = layers;
return out;
} else {
return stbi__errpuc("not GIF", "Image was not as a gif type.");
}
}
static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
stbi_uc *u = 0;
stbi__gif g;
memset(&g, 0, sizeof(g));
STBI_NOTUSED(ri);
u = stbi__gif_load_next(s, &g, comp, req_comp, 0);
if (u == (stbi_uc *) s) u = 0; // end of animated gif marker
if (u) {
*x = g.w;
*y = g.h;
// moved conversion to after successful load so that the same
// can be done for multiple frames.
if (req_comp && req_comp != 4)
u = stbi__convert_format(u, 4, req_comp, g.w, g.h);
} else if (g.out) {
// if there was an error and we allocated an image buffer, free it!
STBI_FREE(g.out);
}
// free buffers needed for multiple frame loading;
STBI_FREE(g.history);
STBI_FREE(g.background);
return u;
}
static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp)
{
return stbi__gif_info_raw(s,x,y,comp);
}
#endif
// *************************************************************************************************
// Radiance RGBE HDR loader
// originally by Nicolas Schulz
#ifndef STBI_NO_HDR
static int stbi__hdr_test_core(stbi__context *s, const char *signature)
{
int i;
for (i=0; signature[i]; ++i)
if (stbi__get8(s) != signature[i])
return 0;
stbi__rewind(s);
return 1;
}
static int stbi__hdr_test(stbi__context* s)
{
int r = stbi__hdr_test_core(s, "#?RADIANCE\n");
stbi__rewind(s);
if(!r) {
r = stbi__hdr_test_core(s, "#?RGBE\n");
stbi__rewind(s);
}
return r;
}
#define STBI__HDR_BUFLEN 1024
static char *stbi__hdr_gettoken(stbi__context *z, char *buffer)
{
int len=0;
char c = '\0';
c = (char) stbi__get8(z);
while (!stbi__at_eof(z) && c != '\n') {
buffer[len++] = c;
if (len == STBI__HDR_BUFLEN-1) {
// flush to end of line
while (!stbi__at_eof(z) && stbi__get8(z) != '\n')
;
break;
}
c = (char) stbi__get8(z);
}
buffer[len] = 0;
return buffer;
}
static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp)
{
if ( input[3] != 0 ) {
float f1;
// Exponent
f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8));
if (req_comp <= 2)
output[0] = (input[0] + input[1] + input[2]) * f1 / 3;
else {
output[0] = input[0] * f1;
output[1] = input[1] * f1;
output[2] = input[2] * f1;
}
if (req_comp == 2) output[1] = 1;
if (req_comp == 4) output[3] = 1;
} else {
switch (req_comp) {
case 4: output[3] = 1; /* fallthrough */
case 3: output[0] = output[1] = output[2] = 0;
break;
case 2: output[1] = 1; /* fallthrough */
case 1: output[0] = 0;
break;
}
}
}
static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
char buffer[STBI__HDR_BUFLEN];
char *token;
int valid = 0;
int width, height;
stbi_uc *scanline;
float *hdr_data;
int len;
unsigned char count, value;
int i, j, k, c1,c2, z;
const char *headerToken;
STBI_NOTUSED(ri);
// Check identifier
headerToken = stbi__hdr_gettoken(s,buffer);
if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0)
return stbi__errpf("not HDR", "Corrupt HDR image");
// Parse header
for(;;) {
token = stbi__hdr_gettoken(s,buffer);
if (token[0] == 0) break;
if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1;
}
if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format");
// Parse width and height
// can't use sscanf() if we're not using stdio!
token = stbi__hdr_gettoken(s,buffer);
if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format");
token += 3;
height = (int) strtol(token, &token, 10);
while (*token == ' ') ++token;
if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format");
token += 3;
width = (int) strtol(token, NULL, 10);
if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)");
if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)");
*x = width;
*y = height;
if (comp) *comp = 3;
if (req_comp == 0) req_comp = 3;
if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0))
return stbi__errpf("too large", "HDR image is too large");
// Read data
hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0);
if (!hdr_data)
return stbi__errpf("outofmem", "Out of memory");
// Load image data
// image data is stored as some number of sca
if ( width < 8 || width >= 32768) {
// Read flat data
for (j=0; j < height; ++j) {
for (i=0; i < width; ++i) {
stbi_uc rgbe[4];
main_decode_loop:
stbi__getn(s, rgbe, 4);
stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp);
}
}
} else {
// Read RLE-encoded data
scanline = NULL;
for (j = 0; j < height; ++j) {
c1 = stbi__get8(s);
c2 = stbi__get8(s);
len = stbi__get8(s);
if (c1 != 2 || c2 != 2 || (len & 0x80)) {
// not run-length encoded, so we have to actually use THIS data as a decoded
// pixel (note this can't be a valid pixel--one of RGB must be >= 128)
stbi_uc rgbe[4];
rgbe[0] = (stbi_uc) c1;
rgbe[1] = (stbi_uc) c2;
rgbe[2] = (stbi_uc) len;
rgbe[3] = (stbi_uc) stbi__get8(s);
stbi__hdr_convert(hdr_data, rgbe, req_comp);
i = 1;
j = 0;
STBI_FREE(scanline);
goto main_decode_loop; // yes, this makes no sense
}
len <<= 8;
len |= stbi__get8(s);
if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); }
if (scanline == NULL) {
scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0);
if (!scanline) {
STBI_FREE(hdr_data);
return stbi__errpf("outofmem", "Out of memory");
}
}
for (k = 0; k < 4; ++k) {
int nleft;
i = 0;
while ((nleft = width - i) > 0) {
count = stbi__get8(s);
if (count > 128) {
// Run
value = stbi__get8(s);
count -= 128;
if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); }
for (z = 0; z < count; ++z)
scanline[i++ * 4 + k] = value;
} else {
// Dump
if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); }
for (z = 0; z < count; ++z)
scanline[i++ * 4 + k] = stbi__get8(s);
}
}
}
for (i=0; i < width; ++i)
stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp);
}
if (scanline)
STBI_FREE(scanline);
}
return hdr_data;
}
static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp)
{
char buffer[STBI__HDR_BUFLEN];
char *token;
int valid = 0;
int dummy;
if (!x) x = &dummy;
if (!y) y = &dummy;
if (!comp) comp = &dummy;
if (stbi__hdr_test(s) == 0) {
stbi__rewind( s );
return 0;
}
for(;;) {
token = stbi__hdr_gettoken(s,buffer);
if (token[0] == 0) break;
if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1;
}
if (!valid) {
stbi__rewind( s );
return 0;
}
token = stbi__hdr_gettoken(s,buffer);
if (strncmp(token, "-Y ", 3)) {
stbi__rewind( s );
return 0;
}
token += 3;
*y = (int) strtol(token, &token, 10);
while (*token == ' ') ++token;
if (strncmp(token, "+X ", 3)) {
stbi__rewind( s );
return 0;
}
token += 3;
*x = (int) strtol(token, NULL, 10);
*comp = 3;
return 1;
}
#endif // STBI_NO_HDR
#ifndef STBI_NO_BMP
static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp)
{
void *p;
stbi__bmp_data info;
info.all_a = 255;
p = stbi__bmp_parse_header(s, &info);
if (p == NULL) {
stbi__rewind( s );
return 0;
}
if (x) *x = s->img_x;
if (y) *y = s->img_y;
if (comp) {
if (info.bpp == 24 && info.ma == 0xff000000)
*comp = 3;
else
*comp = info.ma ? 4 : 3;
}
return 1;
}
#endif
#ifndef STBI_NO_PSD
static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp)
{
int channelCount, dummy, depth;
if (!x) x = &dummy;
if (!y) y = &dummy;
if (!comp) comp = &dummy;
if (stbi__get32be(s) != 0x38425053) {
stbi__rewind( s );
return 0;
}
if (stbi__get16be(s) != 1) {
stbi__rewind( s );
return 0;
}
stbi__skip(s, 6);
channelCount = stbi__get16be(s);
if (channelCount < 0 || channelCount > 16) {
stbi__rewind( s );
return 0;
}
*y = stbi__get32be(s);
*x = stbi__get32be(s);
depth = stbi__get16be(s);
if (depth != 8 && depth != 16) {
stbi__rewind( s );
return 0;
}
if (stbi__get16be(s) != 3) {
stbi__rewind( s );
return 0;
}
*comp = 4;
return 1;
}
static int stbi__psd_is16(stbi__context *s)
{
int channelCount, depth;
if (stbi__get32be(s) != 0x38425053) {
stbi__rewind( s );
return 0;
}
if (stbi__get16be(s) != 1) {
stbi__rewind( s );
return 0;
}
stbi__skip(s, 6);
channelCount = stbi__get16be(s);
if (channelCount < 0 || channelCount > 16) {
stbi__rewind( s );
return 0;
}
STBI_NOTUSED(stbi__get32be(s));
STBI_NOTUSED(stbi__get32be(s));
depth = stbi__get16be(s);
if (depth != 16) {
stbi__rewind( s );
return 0;
}
return 1;
}
#endif
#ifndef STBI_NO_PIC
static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp)
{
int act_comp=0,num_packets=0,chained,dummy;
stbi__pic_packet packets[10];
if (!x) x = &dummy;
if (!y) y = &dummy;
if (!comp) comp = &dummy;
if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) {
stbi__rewind(s);
return 0;
}
stbi__skip(s, 88);
*x = stbi__get16be(s);
*y = stbi__get16be(s);
if (stbi__at_eof(s)) {
stbi__rewind( s);
return 0;
}
if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) {
stbi__rewind( s );
return 0;
}
stbi__skip(s, 8);
do {
stbi__pic_packet *packet;
if (num_packets==sizeof(packets)/sizeof(packets[0]))
return 0;
packet = &packets[num_packets++];
chained = stbi__get8(s);
packet->size = stbi__get8(s);
packet->type = stbi__get8(s);
packet->channel = stbi__get8(s);
act_comp |= packet->channel;
if (stbi__at_eof(s)) {
stbi__rewind( s );
return 0;
}
if (packet->size != 8) {
stbi__rewind( s );
return 0;
}
} while (chained);
*comp = (act_comp & 0x10 ? 4 : 3);
return 1;
}
#endif
// *************************************************************************************************
// Portable Gray Map and Portable Pixel Map loader
// by Ken Miller
//
// PGM: http://netpbm.sourceforge.net/doc/pgm.html
// PPM: http://netpbm.sourceforge.net/doc/ppm.html
//
// Known limitations:
// Does not support comments in the header section
// Does not support ASCII image data (formats P2 and P3)
#ifndef STBI_NO_PNM
static int stbi__pnm_test(stbi__context *s)
{
char p, t;
p = (char) stbi__get8(s);
t = (char) stbi__get8(s);
if (p != 'P' || (t != '5' && t != '6')) {
stbi__rewind( s );
return 0;
}
return 1;
}
static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{
stbi_uc *out;
STBI_NOTUSED(ri);
ri->bits_per_channel = stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n);
if (ri->bits_per_channel == 0)
return 0;
if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)");
*x = s->img_x;
*y = s->img_y;
if (comp) *comp = s->img_n;
if (!stbi__mad4sizes_valid(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0))
return stbi__errpuc("too large", "PNM too large");
out = (stbi_uc *) stbi__malloc_mad4(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0);
if (!out) return stbi__errpuc("outofmem", "Out of memory");
stbi__getn(s, out, s->img_n * s->img_x * s->img_y * (ri->bits_per_channel / 8));
if (req_comp && req_comp != s->img_n) {
out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y);
if (out == NULL) return out; // stbi__convert_format frees input on failure
}
return out;
}
static int stbi__pnm_isspace(char c)
{
return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r';
}
static void stbi__pnm_skip_whitespace(stbi__context *s, char *c)
{
for (;;) {
while (!stbi__at_eof(s) && stbi__pnm_isspace(*c))
*c = (char) stbi__get8(s);
if (stbi__at_eof(s) || *c != '#')
break;
while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' )
*c = (char) stbi__get8(s);
}
}
static int stbi__pnm_isdigit(char c)
{
return c >= '0' && c <= '9';
}
static int stbi__pnm_getinteger(stbi__context *s, char *c)
{
int value = 0;
while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) {
value = value*10 + (*c - '0');
*c = (char) stbi__get8(s);
}
return value;
}
static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp)
{
int maxv, dummy;
char c, p, t;
if (!x) x = &dummy;
if (!y) y = &dummy;
if (!comp) comp = &dummy;
stbi__rewind(s);
// Get identifier
p = (char) stbi__get8(s);
t = (char) stbi__get8(s);
if (p != 'P' || (t != '5' && t != '6')) {
stbi__rewind(s);
return 0;
}
*comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm
c = (char) stbi__get8(s);
stbi__pnm_skip_whitespace(s, &c);
*x = stbi__pnm_getinteger(s, &c); // read width
stbi__pnm_skip_whitespace(s, &c);
*y = stbi__pnm_getinteger(s, &c); // read height
stbi__pnm_skip_whitespace(s, &c);
maxv = stbi__pnm_getinteger(s, &c); // read max value
if (maxv > 65535)
return stbi__err("max value > 65535", "PPM image supports only 8-bit and 16-bit images");
else if (maxv > 255)
return 16;
else
return 8;
}
static int stbi__pnm_is16(stbi__context *s)
{
if (stbi__pnm_info(s, NULL, NULL, NULL) == 16)
return 1;
return 0;
}
#endif
static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp)
{
#ifndef STBI_NO_JPEG
if (stbi__jpeg_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PNG
if (stbi__png_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_GIF
if (stbi__gif_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_BMP
if (stbi__bmp_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PSD
if (stbi__psd_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PIC
if (stbi__pic_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PNM
if (stbi__pnm_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_HDR
if (stbi__hdr_info(s, x, y, comp)) return 1;
#endif
// test tga last because it's a crappy test!
#ifndef STBI_NO_TGA
if (stbi__tga_info(s, x, y, comp))
return 1;
#endif
return stbi__err("unknown image type", "Image not of any known type, or corrupt");
}
static int stbi__is_16_main(stbi__context *s)
{
#ifndef STBI_NO_PNG
if (stbi__png_is16(s)) return 1;
#endif
#ifndef STBI_NO_PSD
if (stbi__psd_is16(s)) return 1;
#endif
#ifndef STBI_NO_PNM
if (stbi__pnm_is16(s)) return 1;
#endif
return 0;
}
#ifndef STBI_NO_STDIO
STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
{
FILE *f = stbi__fopen(filename, "rb");
int result;
if (!f) return stbi__err("can't fopen", "Unable to open file");
result = stbi_info_from_file(f, x, y, comp);
fclose(f);
return result;
}
STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp)
{
int r;
stbi__context s;
long pos = ftell(f);
stbi__start_file(&s, f);
r = stbi__info_main(&s,x,y,comp);
fseek(f,pos,SEEK_SET);
return r;
}
STBIDEF int stbi_is_16_bit(char const *filename)
{
FILE *f = stbi__fopen(filename, "rb");
int result;
if (!f) return stbi__err("can't fopen", "Unable to open file");
result = stbi_is_16_bit_from_file(f);
fclose(f);
return result;
}
STBIDEF int stbi_is_16_bit_from_file(FILE *f)
{
int r;
stbi__context s;
long pos = ftell(f);
stbi__start_file(&s, f);
r = stbi__is_16_main(&s);
fseek(f,pos,SEEK_SET);
return r;
}
#endif // !STBI_NO_STDIO
STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__info_main(&s,x,y,comp);
}
STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user);
return stbi__info_main(&s,x,y,comp);
}
STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__is_16_main(&s);
}
STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user);
return stbi__is_16_main(&s);
}
#endif // STB_IMAGE_IMPLEMENTATION
/*
revision history:
2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs
2.19 (2018-02-11) fix warning
2.18 (2018-01-30) fix warnings
2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug
1-bit BMP
*_is_16_bit api
avoid warnings
2.16 (2017-07-23) all functions have 16-bit variants;
STBI_NO_STDIO works again;
compilation fixes;
fix rounding in unpremultiply;
optimize vertical flip;
disable raw_len validation;
documentation fixes
2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode;
warning fixes; disable run-time SSE detection on gcc;
uniform handling of optional "return" values;
thread-safe initialization of zlib tables
2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs
2.13 (2016-11-29) add 16-bit API, only supported for PNG right now
2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes
2.11 (2016-04-02) allocate large structures on the stack
remove white matting for transparent PSD
fix reported channel count for PNG & BMP
re-enable SSE2 in non-gcc 64-bit
support RGB-formatted JPEG
read 16-bit PNGs (only as 8-bit)
2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED
2.09 (2016-01-16) allow comments in PNM files
16-bit-per-pixel TGA (not bit-per-component)
info() for TGA could break due to .hdr handling
info() for BMP to shares code instead of sloppy parse
can use STBI_REALLOC_SIZED if allocator doesn't support realloc
code cleanup
2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA
2.07 (2015-09-13) fix compiler warnings
partial animated GIF support
limited 16-bpc PSD support
#ifdef unused functions
bug with < 92 byte PIC,PNM,HDR,TGA
2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value
2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning
2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit
2.03 (2015-04-12) extra corruption checking (mmozeiko)
stbi_set_flip_vertically_on_load (nguillemot)
fix NEON support; fix mingw support
2.02 (2015-01-19) fix incorrect assert, fix warning
2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2
2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG
2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg)
progressive JPEG (stb)
PGM/PPM support (Ken Miller)
STBI_MALLOC,STBI_REALLOC,STBI_FREE
GIF bugfix -- seemingly never worked
STBI_NO_*, STBI_ONLY_*
1.48 (2014-12-14) fix incorrectly-named assert()
1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb)
optimize PNG (ryg)
fix bug in interlaced PNG with user-specified channel count (stb)
1.46 (2014-08-26)
fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG
1.45 (2014-08-16)
fix MSVC-ARM internal compiler error by wrapping malloc
1.44 (2014-08-07)
various warning fixes from Ronny Chevalier
1.43 (2014-07-15)
fix MSVC-only compiler problem in code changed in 1.42
1.42 (2014-07-09)
don't define _CRT_SECURE_NO_WARNINGS (affects user code)
fixes to stbi__cleanup_jpeg path
added STBI_ASSERT to avoid requiring assert.h
1.41 (2014-06-25)
fix search&replace from 1.36 that messed up comments/error messages
1.40 (2014-06-22)
fix gcc struct-initialization warning
1.39 (2014-06-15)
fix to TGA optimization when req_comp != number of components in TGA;
fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite)
add support for BMP version 5 (more ignored fields)
1.38 (2014-06-06)
suppress MSVC warnings on integer casts truncating values
fix accidental rename of 'skip' field of I/O
1.37 (2014-06-04)
remove duplicate typedef
1.36 (2014-06-03)
convert to header file single-file library
if de-iphone isn't set, load iphone images color-swapped instead of returning NULL
1.35 (2014-05-27)
various warnings
fix broken STBI_SIMD path
fix bug where stbi_load_from_file no longer left file pointer in correct place
fix broken non-easy path for 32-bit BMP (possibly never used)
TGA optimization by Arseny Kapoulkine
1.34 (unknown)
use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case
1.33 (2011-07-14)
make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements
1.32 (2011-07-13)
support for "info" function for all supported filetypes (SpartanJ)
1.31 (2011-06-20)
a few more leak fixes, bug in PNG handling (SpartanJ)
1.30 (2011-06-11)
added ability to load files via callbacks to accomidate custom input streams (Ben Wenger)
removed deprecated format-specific test/load functions
removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway
error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha)
fix inefficiency in decoding 32-bit BMP (David Woo)
1.29 (2010-08-16)
various warning fixes from Aurelien Pocheville
1.28 (2010-08-01)
fix bug in GIF palette transparency (SpartanJ)
1.27 (2010-08-01)
cast-to-stbi_uc to fix warnings
1.26 (2010-07-24)
fix bug in file buffering for PNG reported by SpartanJ
1.25 (2010-07-17)
refix trans_data warning (Won Chun)
1.24 (2010-07-12)
perf improvements reading from files on platforms with lock-heavy fgetc()
minor perf improvements for jpeg
deprecated type-specific functions so we'll get feedback if they're needed
attempt to fix trans_data warning (Won Chun)
1.23 fixed bug in iPhone support
1.22 (2010-07-10)
removed image *writing* support
stbi_info support from Jetro Lauha
GIF support from Jean-Marc Lienher
iPhone PNG-extensions from James Brown
warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva)
1.21 fix use of 'stbi_uc' in header (reported by jon blow)
1.20 added support for Softimage PIC, by Tom Seddon
1.19 bug in interlaced PNG corruption check (found by ryg)
1.18 (2008-08-02)
fix a threading bug (local mutable static)
1.17 support interlaced PNG
1.16 major bugfix - stbi__convert_format converted one too many pixels
1.15 initialize some fields for thread safety
1.14 fix threadsafe conversion bug
header-file-only version (#define STBI_HEADER_FILE_ONLY before including)
1.13 threadsafe
1.12 const qualifiers in the API
1.11 Support installable IDCT, colorspace conversion routines
1.10 Fixes for 64-bit (don't use "unsigned long")
optimized upsampling by Fabian "ryg" Giesen
1.09 Fix format-conversion for PSD code (bad global variables!)
1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz
1.07 attempt to fix C++ warning/errors again
1.06 attempt to fix C++ warning/errors again
1.05 fix TGA loading to return correct *comp and use good luminance calc
1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free
1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR
1.02 support for (subset of) HDR files, float interface for preferred access to them
1.01 fix bug: possible bug in handling right-side up bmps... not sure
fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all
1.00 interface to zlib that skips zlib header
0.99 correct handling of alpha in palette
0.98 TGA loader by lonesock; dynamically add loaders (untested)
0.97 jpeg errors on too large a file; also catch another malloc failure
0.96 fix detection of invalid v value - particleman@mollyrocket forum
0.95 during header scan, seek to markers in case of padding
0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same
0.93 handle jpegtran output; verbose errors
0.92 read 4,8,16,24,32-bit BMP files of several formats
0.91 output 24-bit Windows 3.0 BMP files
0.90 fix a few more warnings; bump version number to approach 1.0
0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd
0.60 fix compiling as c++
0.59 fix warnings: merge Dave Moore's -Wall fixes
0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian
0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available
0.56 fix bug: zlib uncompressed mode len vs. nlen
0.55 fix bug: restart_interval not initialized to 0
0.54 allow NULL for 'int *comp'
0.53 fix bug in png 3->4; speedup png decoding
0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments
0.51 obey req_comp requests, 1-component jpegs return as 1-component,
on 'test' only check type, not whether we support this variant
0.50 (2006-11-19)
first released version
*/
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/
|
0 | repos/zig_vulkan/deps/stb_image | repos/zig_vulkan/deps/stb_image/c_src/stb_image_write.h | /* stb_image_write - v1.16 - public domain - http://nothings.org/stb
writes out PNG/BMP/TGA/JPEG/HDR images to C stdio - Sean Barrett 2010-2015
no warranty implied; use at your own risk
Before #including,
#define STB_IMAGE_WRITE_IMPLEMENTATION
in the file that you want to have the implementation.
Will probably not work correctly with strict-aliasing optimizations.
ABOUT:
This header file is a library for writing images to C stdio or a callback.
The PNG output is not optimal; it is 20-50% larger than the file
written by a decent optimizing implementation; though providing a custom
zlib compress function (see STBIW_ZLIB_COMPRESS) can mitigate that.
This library is designed for source code compactness and simplicity,
not optimal image file size or run-time performance.
BUILDING:
You can #define STBIW_ASSERT(x) before the #include to avoid using assert.h.
You can #define STBIW_MALLOC(), STBIW_REALLOC(), and STBIW_FREE() to replace
malloc,realloc,free.
You can #define STBIW_MEMMOVE() to replace memmove()
You can #define STBIW_ZLIB_COMPRESS to use a custom zlib-style compress function
for PNG compression (instead of the builtin one), it must have the following signature:
unsigned char * my_compress(unsigned char *data, int data_len, int *out_len, int quality);
The returned data will be freed with STBIW_FREE() (free() by default),
so it must be heap allocated with STBIW_MALLOC() (malloc() by default),
UNICODE:
If compiling for Windows and you wish to use Unicode filenames, compile
with
#define STBIW_WINDOWS_UTF8
and pass utf8-encoded filenames. Call stbiw_convert_wchar_to_utf8 to convert
Windows wchar_t filenames to utf8.
USAGE:
There are five functions, one for each image file format:
int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
int stbi_write_jpg(char const *filename, int w, int h, int comp, const void *data, int quality);
int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data);
void stbi_flip_vertically_on_write(int flag); // flag is non-zero to flip data vertically
There are also five equivalent functions that use an arbitrary write function. You are
expected to open/close your file-equivalent before and after calling these:
int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data, int stride_in_bytes);
int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data);
int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data);
int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data);
int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality);
where the callback is:
void stbi_write_func(void *context, void *data, int size);
You can configure it with these global variables:
int stbi_write_tga_with_rle; // defaults to true; set to 0 to disable RLE
int stbi_write_png_compression_level; // defaults to 8; set to higher for more compression
int stbi_write_force_png_filter; // defaults to -1; set to 0..5 to force a filter mode
You can define STBI_WRITE_NO_STDIO to disable the file variant of these
functions, so the library will not use stdio.h at all. However, this will
also disable HDR writing, because it requires stdio for formatted output.
Each function returns 0 on failure and non-0 on success.
The functions create an image file defined by the parameters. The image
is a rectangle of pixels stored from left-to-right, top-to-bottom.
Each pixel contains 'comp' channels of data stored interleaved with 8-bits
per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is
monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall.
The *data pointer points to the first byte of the top-left-most pixel.
For PNG, "stride_in_bytes" is the distance in bytes from the first byte of
a row of pixels to the first byte of the next row of pixels.
PNG creates output files with the same number of components as the input.
The BMP format expands Y to RGB in the file format and does not
output alpha.
PNG supports writing rectangles of data even when the bytes storing rows of
data are not consecutive in memory (e.g. sub-rectangles of a larger image),
by supplying the stride between the beginning of adjacent rows. The other
formats do not. (Thus you cannot write a native-format BMP through the BMP
writer, both because it is in BGR order and because it may have padding
at the end of the line.)
PNG allows you to set the deflate compression level by setting the global
variable 'stbi_write_png_compression_level' (it defaults to 8).
HDR expects linear float data. Since the format is always 32-bit rgb(e)
data, alpha (if provided) is discarded, and for monochrome data it is
replicated across all three channels.
TGA supports RLE or non-RLE compressed data. To use non-RLE-compressed
data, set the global variable 'stbi_write_tga_with_rle' to 0.
JPEG does ignore alpha channels in input data; quality is between 1 and 100.
Higher quality looks better but results in a bigger image.
JPEG baseline (no JPEG progressive).
CREDITS:
Sean Barrett - PNG/BMP/TGA
Baldur Karlsson - HDR
Jean-Sebastien Guay - TGA monochrome
Tim Kelsey - misc enhancements
Alan Hickman - TGA RLE
Emmanuel Julien - initial file IO callback implementation
Jon Olick - original jo_jpeg.cpp code
Daniel Gibson - integrate JPEG, allow external zlib
Aarni Koskela - allow choosing PNG filter
bugfixes:
github:Chribba
Guillaume Chereau
github:jry2
github:romigrou
Sergio Gonzalez
Jonas Karlsson
Filip Wasil
Thatcher Ulrich
github:poppolopoppo
Patrick Boettcher
github:xeekworx
Cap Petschulat
Simon Rodriguez
Ivan Tikhonov
github:ignotion
Adam Schackart
Andrew Kensler
LICENSE
See end of file for license information.
*/
#ifndef INCLUDE_STB_IMAGE_WRITE_H
#define INCLUDE_STB_IMAGE_WRITE_H
#include <stdlib.h>
// if STB_IMAGE_WRITE_STATIC causes problems, try defining STBIWDEF to 'inline' or 'static inline'
#ifndef STBIWDEF
#ifdef STB_IMAGE_WRITE_STATIC
#define STBIWDEF static
#else
#ifdef __cplusplus
#define STBIWDEF extern "C"
#else
#define STBIWDEF extern
#endif
#endif
#endif
#ifndef STB_IMAGE_WRITE_STATIC // C++ forbids static forward declarations
STBIWDEF int stbi_write_tga_with_rle;
STBIWDEF int stbi_write_png_compression_level;
STBIWDEF int stbi_write_force_png_filter;
#endif
#ifndef STBI_WRITE_NO_STDIO
STBIWDEF int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
STBIWDEF int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
STBIWDEF int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
STBIWDEF int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data);
STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality);
#ifdef STBIW_WINDOWS_UTF8
STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input);
#endif
#endif
typedef void stbi_write_func(void *context, void *data, int size);
STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data, int stride_in_bytes);
STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data);
STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data);
STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data);
STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality);
STBIWDEF void stbi_flip_vertically_on_write(int flip_boolean);
#endif//INCLUDE_STB_IMAGE_WRITE_H
#ifdef STB_IMAGE_WRITE_IMPLEMENTATION
#ifdef _WIN32
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
#endif
#ifndef _CRT_NONSTDC_NO_DEPRECATE
#define _CRT_NONSTDC_NO_DEPRECATE
#endif
#endif
#ifndef STBI_WRITE_NO_STDIO
#include <stdio.h>
#endif // STBI_WRITE_NO_STDIO
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#if defined(STBIW_MALLOC) && defined(STBIW_FREE) && (defined(STBIW_REALLOC) || defined(STBIW_REALLOC_SIZED))
// ok
#elif !defined(STBIW_MALLOC) && !defined(STBIW_FREE) && !defined(STBIW_REALLOC) && !defined(STBIW_REALLOC_SIZED)
// ok
#else
#error "Must define all or none of STBIW_MALLOC, STBIW_FREE, and STBIW_REALLOC (or STBIW_REALLOC_SIZED)."
#endif
#ifndef STBIW_MALLOC
#define STBIW_MALLOC(sz) malloc(sz)
#define STBIW_REALLOC(p,newsz) realloc(p,newsz)
#define STBIW_FREE(p) free(p)
#endif
#ifndef STBIW_REALLOC_SIZED
#define STBIW_REALLOC_SIZED(p,oldsz,newsz) STBIW_REALLOC(p,newsz)
#endif
#ifndef STBIW_MEMMOVE
#define STBIW_MEMMOVE(a,b,sz) memmove(a,b,sz)
#endif
#ifndef STBIW_ASSERT
#include <assert.h>
#define STBIW_ASSERT(x) assert(x)
#endif
#define STBIW_UCHAR(x) (unsigned char) ((x) & 0xff)
#ifdef STB_IMAGE_WRITE_STATIC
static int stbi_write_png_compression_level = 8;
static int stbi_write_tga_with_rle = 1;
static int stbi_write_force_png_filter = -1;
#else
int stbi_write_png_compression_level = 8;
int stbi_write_tga_with_rle = 1;
int stbi_write_force_png_filter = -1;
#endif
static int stbi__flip_vertically_on_write = 0;
STBIWDEF void stbi_flip_vertically_on_write(int flag)
{
stbi__flip_vertically_on_write = flag;
}
typedef struct
{
stbi_write_func *func;
void *context;
unsigned char buffer[64];
int buf_used;
} stbi__write_context;
// initialize a callback-based context
static void stbi__start_write_callbacks(stbi__write_context *s, stbi_write_func *c, void *context)
{
s->func = c;
s->context = context;
}
#ifndef STBI_WRITE_NO_STDIO
static void stbi__stdio_write(void *context, void *data, int size)
{
fwrite(data,1,size,(FILE*) context);
}
#if defined(_WIN32) && defined(STBIW_WINDOWS_UTF8)
#ifdef __cplusplus
#define STBIW_EXTERN extern "C"
#else
#define STBIW_EXTERN extern
#endif
STBIW_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide);
STBIW_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input)
{
return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL);
}
#endif
static FILE *stbiw__fopen(char const *filename, char const *mode)
{
FILE *f;
#if defined(_WIN32) && defined(STBIW_WINDOWS_UTF8)
wchar_t wMode[64];
wchar_t wFilename[1024];
if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename)/sizeof(*wFilename)))
return 0;
if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode)/sizeof(*wMode)))
return 0;
#if defined(_MSC_VER) && _MSC_VER >= 1400
if (0 != _wfopen_s(&f, wFilename, wMode))
f = 0;
#else
f = _wfopen(wFilename, wMode);
#endif
#elif defined(_MSC_VER) && _MSC_VER >= 1400
if (0 != fopen_s(&f, filename, mode))
f=0;
#else
f = fopen(filename, mode);
#endif
return f;
}
static int stbi__start_write_file(stbi__write_context *s, const char *filename)
{
FILE *f = stbiw__fopen(filename, "wb");
stbi__start_write_callbacks(s, stbi__stdio_write, (void *) f);
return f != NULL;
}
static void stbi__end_write_file(stbi__write_context *s)
{
fclose((FILE *)s->context);
}
#endif // !STBI_WRITE_NO_STDIO
typedef unsigned int stbiw_uint32;
typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1];
static void stbiw__writefv(stbi__write_context *s, const char *fmt, va_list v)
{
while (*fmt) {
switch (*fmt++) {
case ' ': break;
case '1': { unsigned char x = STBIW_UCHAR(va_arg(v, int));
s->func(s->context,&x,1);
break; }
case '2': { int x = va_arg(v,int);
unsigned char b[2];
b[0] = STBIW_UCHAR(x);
b[1] = STBIW_UCHAR(x>>8);
s->func(s->context,b,2);
break; }
case '4': { stbiw_uint32 x = va_arg(v,int);
unsigned char b[4];
b[0]=STBIW_UCHAR(x);
b[1]=STBIW_UCHAR(x>>8);
b[2]=STBIW_UCHAR(x>>16);
b[3]=STBIW_UCHAR(x>>24);
s->func(s->context,b,4);
break; }
default:
STBIW_ASSERT(0);
return;
}
}
}
static void stbiw__writef(stbi__write_context *s, const char *fmt, ...)
{
va_list v;
va_start(v, fmt);
stbiw__writefv(s, fmt, v);
va_end(v);
}
static void stbiw__write_flush(stbi__write_context *s)
{
if (s->buf_used) {
s->func(s->context, &s->buffer, s->buf_used);
s->buf_used = 0;
}
}
static void stbiw__putc(stbi__write_context *s, unsigned char c)
{
s->func(s->context, &c, 1);
}
static void stbiw__write1(stbi__write_context *s, unsigned char a)
{
if ((size_t)s->buf_used + 1 > sizeof(s->buffer))
stbiw__write_flush(s);
s->buffer[s->buf_used++] = a;
}
static void stbiw__write3(stbi__write_context *s, unsigned char a, unsigned char b, unsigned char c)
{
int n;
if ((size_t)s->buf_used + 3 > sizeof(s->buffer))
stbiw__write_flush(s);
n = s->buf_used;
s->buf_used = n+3;
s->buffer[n+0] = a;
s->buffer[n+1] = b;
s->buffer[n+2] = c;
}
static void stbiw__write_pixel(stbi__write_context *s, int rgb_dir, int comp, int write_alpha, int expand_mono, unsigned char *d)
{
unsigned char bg[3] = { 255, 0, 255}, px[3];
int k;
if (write_alpha < 0)
stbiw__write1(s, d[comp - 1]);
switch (comp) {
case 2: // 2 pixels = mono + alpha, alpha is written separately, so same as 1-channel case
case 1:
if (expand_mono)
stbiw__write3(s, d[0], d[0], d[0]); // monochrome bmp
else
stbiw__write1(s, d[0]); // monochrome TGA
break;
case 4:
if (!write_alpha) {
// composite against pink background
for (k = 0; k < 3; ++k)
px[k] = bg[k] + ((d[k] - bg[k]) * d[3]) / 255;
stbiw__write3(s, px[1 - rgb_dir], px[1], px[1 + rgb_dir]);
break;
}
/* FALLTHROUGH */
case 3:
stbiw__write3(s, d[1 - rgb_dir], d[1], d[1 + rgb_dir]);
break;
}
if (write_alpha > 0)
stbiw__write1(s, d[comp - 1]);
}
static void stbiw__write_pixels(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad, int expand_mono)
{
stbiw_uint32 zero = 0;
int i,j, j_end;
if (y <= 0)
return;
if (stbi__flip_vertically_on_write)
vdir *= -1;
if (vdir < 0) {
j_end = -1; j = y-1;
} else {
j_end = y; j = 0;
}
for (; j != j_end; j += vdir) {
for (i=0; i < x; ++i) {
unsigned char *d = (unsigned char *) data + (j*x+i)*comp;
stbiw__write_pixel(s, rgb_dir, comp, write_alpha, expand_mono, d);
}
stbiw__write_flush(s);
s->func(s->context, &zero, scanline_pad);
}
}
static int stbiw__outfile(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, int expand_mono, void *data, int alpha, int pad, const char *fmt, ...)
{
if (y < 0 || x < 0) {
return 0;
} else {
va_list v;
va_start(v, fmt);
stbiw__writefv(s, fmt, v);
va_end(v);
stbiw__write_pixels(s,rgb_dir,vdir,x,y,comp,data,alpha,pad, expand_mono);
return 1;
}
}
static int stbi_write_bmp_core(stbi__write_context *s, int x, int y, int comp, const void *data)
{
if (comp != 4) {
// write RGB bitmap
int pad = (-x*3) & 3;
return stbiw__outfile(s,-1,-1,x,y,comp,1,(void *) data,0,pad,
"11 4 22 4" "4 44 22 444444",
'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header
40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header
} else {
// RGBA bitmaps need a v4 header
// use BI_BITFIELDS mode with 32bpp and alpha mask
// (straight BI_RGB with alpha mask doesn't work in most readers)
return stbiw__outfile(s,-1,-1,x,y,comp,1,(void *)data,1,0,
"11 4 22 4" "4 44 22 444444 4444 4 444 444 444 444",
'B', 'M', 14+108+x*y*4, 0, 0, 14+108, // file header
108, x,y, 1,32, 3,0,0,0,0,0, 0xff0000,0xff00,0xff,0xff000000u, 0, 0,0,0, 0,0,0, 0,0,0, 0,0,0); // bitmap V4 header
}
}
STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
{
stbi__write_context s = { 0 };
stbi__start_write_callbacks(&s, func, context);
return stbi_write_bmp_core(&s, x, y, comp, data);
}
#ifndef STBI_WRITE_NO_STDIO
STBIWDEF int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data)
{
stbi__write_context s = { 0 };
if (stbi__start_write_file(&s,filename)) {
int r = stbi_write_bmp_core(&s, x, y, comp, data);
stbi__end_write_file(&s);
return r;
} else
return 0;
}
#endif //!STBI_WRITE_NO_STDIO
static int stbi_write_tga_core(stbi__write_context *s, int x, int y, int comp, void *data)
{
int has_alpha = (comp == 2 || comp == 4);
int colorbytes = has_alpha ? comp-1 : comp;
int format = colorbytes < 2 ? 3 : 2; // 3 color channels (RGB/RGBA) = 2, 1 color channel (Y/YA) = 3
if (y < 0 || x < 0)
return 0;
if (!stbi_write_tga_with_rle) {
return stbiw__outfile(s, -1, -1, x, y, comp, 0, (void *) data, has_alpha, 0,
"111 221 2222 11", 0, 0, format, 0, 0, 0, 0, 0, x, y, (colorbytes + has_alpha) * 8, has_alpha * 8);
} else {
int i,j,k;
int jend, jdir;
stbiw__writef(s, "111 221 2222 11", 0,0,format+8, 0,0,0, 0,0,x,y, (colorbytes + has_alpha) * 8, has_alpha * 8);
if (stbi__flip_vertically_on_write) {
j = 0;
jend = y;
jdir = 1;
} else {
j = y-1;
jend = -1;
jdir = -1;
}
for (; j != jend; j += jdir) {
unsigned char *row = (unsigned char *) data + j * x * comp;
int len;
for (i = 0; i < x; i += len) {
unsigned char *begin = row + i * comp;
int diff = 1;
len = 1;
if (i < x - 1) {
++len;
diff = memcmp(begin, row + (i + 1) * comp, comp);
if (diff) {
const unsigned char *prev = begin;
for (k = i + 2; k < x && len < 128; ++k) {
if (memcmp(prev, row + k * comp, comp)) {
prev += comp;
++len;
} else {
--len;
break;
}
}
} else {
for (k = i + 2; k < x && len < 128; ++k) {
if (!memcmp(begin, row + k * comp, comp)) {
++len;
} else {
break;
}
}
}
}
if (diff) {
unsigned char header = STBIW_UCHAR(len - 1);
stbiw__write1(s, header);
for (k = 0; k < len; ++k) {
stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin + k * comp);
}
} else {
unsigned char header = STBIW_UCHAR(len - 129);
stbiw__write1(s, header);
stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin);
}
}
}
stbiw__write_flush(s);
}
return 1;
}
STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
{
stbi__write_context s = { 0 };
stbi__start_write_callbacks(&s, func, context);
return stbi_write_tga_core(&s, x, y, comp, (void *) data);
}
#ifndef STBI_WRITE_NO_STDIO
STBIWDEF int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data)
{
stbi__write_context s = { 0 };
if (stbi__start_write_file(&s,filename)) {
int r = stbi_write_tga_core(&s, x, y, comp, (void *) data);
stbi__end_write_file(&s);
return r;
} else
return 0;
}
#endif
// *************************************************************************************************
// Radiance RGBE HDR writer
// by Baldur Karlsson
#define stbiw__max(a, b) ((a) > (b) ? (a) : (b))
#ifndef STBI_WRITE_NO_STDIO
static void stbiw__linear_to_rgbe(unsigned char *rgbe, float *linear)
{
int exponent;
float maxcomp = stbiw__max(linear[0], stbiw__max(linear[1], linear[2]));
if (maxcomp < 1e-32f) {
rgbe[0] = rgbe[1] = rgbe[2] = rgbe[3] = 0;
} else {
float normalize = (float) frexp(maxcomp, &exponent) * 256.0f/maxcomp;
rgbe[0] = (unsigned char)(linear[0] * normalize);
rgbe[1] = (unsigned char)(linear[1] * normalize);
rgbe[2] = (unsigned char)(linear[2] * normalize);
rgbe[3] = (unsigned char)(exponent + 128);
}
}
static void stbiw__write_run_data(stbi__write_context *s, int length, unsigned char databyte)
{
unsigned char lengthbyte = STBIW_UCHAR(length+128);
STBIW_ASSERT(length+128 <= 255);
s->func(s->context, &lengthbyte, 1);
s->func(s->context, &databyte, 1);
}
static void stbiw__write_dump_data(stbi__write_context *s, int length, unsigned char *data)
{
unsigned char lengthbyte = STBIW_UCHAR(length);
STBIW_ASSERT(length <= 128); // inconsistent with spec but consistent with official code
s->func(s->context, &lengthbyte, 1);
s->func(s->context, data, length);
}
static void stbiw__write_hdr_scanline(stbi__write_context *s, int width, int ncomp, unsigned char *scratch, float *scanline)
{
unsigned char scanlineheader[4] = { 2, 2, 0, 0 };
unsigned char rgbe[4];
float linear[3];
int x;
scanlineheader[2] = (width&0xff00)>>8;
scanlineheader[3] = (width&0x00ff);
/* skip RLE for images too small or large */
if (width < 8 || width >= 32768) {
for (x=0; x < width; x++) {
switch (ncomp) {
case 4: /* fallthrough */
case 3: linear[2] = scanline[x*ncomp + 2];
linear[1] = scanline[x*ncomp + 1];
linear[0] = scanline[x*ncomp + 0];
break;
default:
linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0];
break;
}
stbiw__linear_to_rgbe(rgbe, linear);
s->func(s->context, rgbe, 4);
}
} else {
int c,r;
/* encode into scratch buffer */
for (x=0; x < width; x++) {
switch(ncomp) {
case 4: /* fallthrough */
case 3: linear[2] = scanline[x*ncomp + 2];
linear[1] = scanline[x*ncomp + 1];
linear[0] = scanline[x*ncomp + 0];
break;
default:
linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0];
break;
}
stbiw__linear_to_rgbe(rgbe, linear);
scratch[x + width*0] = rgbe[0];
scratch[x + width*1] = rgbe[1];
scratch[x + width*2] = rgbe[2];
scratch[x + width*3] = rgbe[3];
}
s->func(s->context, scanlineheader, 4);
/* RLE each component separately */
for (c=0; c < 4; c++) {
unsigned char *comp = &scratch[width*c];
x = 0;
while (x < width) {
// find first run
r = x;
while (r+2 < width) {
if (comp[r] == comp[r+1] && comp[r] == comp[r+2])
break;
++r;
}
if (r+2 >= width)
r = width;
// dump up to first run
while (x < r) {
int len = r-x;
if (len > 128) len = 128;
stbiw__write_dump_data(s, len, &comp[x]);
x += len;
}
// if there's a run, output it
if (r+2 < width) { // same test as what we break out of in search loop, so only true if we break'd
// find next byte after run
while (r < width && comp[r] == comp[x])
++r;
// output run up to r
while (x < r) {
int len = r-x;
if (len > 127) len = 127;
stbiw__write_run_data(s, len, comp[x]);
x += len;
}
}
}
}
}
}
static int stbi_write_hdr_core(stbi__write_context *s, int x, int y, int comp, float *data)
{
if (y <= 0 || x <= 0 || data == NULL)
return 0;
else {
// Each component is stored separately. Allocate scratch space for full output scanline.
unsigned char *scratch = (unsigned char *) STBIW_MALLOC(x*4);
int i, len;
char buffer[128];
char header[] = "#?RADIANCE\n# Written by stb_image_write.h\nFORMAT=32-bit_rle_rgbe\n";
s->func(s->context, header, sizeof(header)-1);
#ifdef __STDC_LIB_EXT1__
len = sprintf_s(buffer, sizeof(buffer), "EXPOSURE= 1.0000000000000\n\n-Y %d +X %d\n", y, x);
#else
len = sprintf(buffer, "EXPOSURE= 1.0000000000000\n\n-Y %d +X %d\n", y, x);
#endif
s->func(s->context, buffer, len);
for(i=0; i < y; i++)
stbiw__write_hdr_scanline(s, x, comp, scratch, data + comp*x*(stbi__flip_vertically_on_write ? y-1-i : i));
STBIW_FREE(scratch);
return 1;
}
}
STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
{
stbi__write_context s = { 0 };
stbi__start_write_callbacks(&s, func, context);
return stbi_write_hdr_core(&s, x, y, comp, (float *) data);
}
STBIWDEF int stbi_write_hdr(char const *filename, int x, int y, int comp, const float *data)
{
stbi__write_context s = { 0 };
if (stbi__start_write_file(&s,filename)) {
int r = stbi_write_hdr_core(&s, x, y, comp, (float *) data);
stbi__end_write_file(&s);
return r;
} else
return 0;
}
#endif // STBI_WRITE_NO_STDIO
//////////////////////////////////////////////////////////////////////////////
//
// PNG writer
//
#ifndef STBIW_ZLIB_COMPRESS
// stretchy buffer; stbiw__sbpush() == vector<>::push_back() -- stbiw__sbcount() == vector<>::size()
#define stbiw__sbraw(a) ((int *) (void *) (a) - 2)
#define stbiw__sbm(a) stbiw__sbraw(a)[0]
#define stbiw__sbn(a) stbiw__sbraw(a)[1]
#define stbiw__sbneedgrow(a,n) ((a)==0 || stbiw__sbn(a)+n >= stbiw__sbm(a))
#define stbiw__sbmaybegrow(a,n) (stbiw__sbneedgrow(a,(n)) ? stbiw__sbgrow(a,n) : 0)
#define stbiw__sbgrow(a,n) stbiw__sbgrowf((void **) &(a), (n), sizeof(*(a)))
#define stbiw__sbpush(a, v) (stbiw__sbmaybegrow(a,1), (a)[stbiw__sbn(a)++] = (v))
#define stbiw__sbcount(a) ((a) ? stbiw__sbn(a) : 0)
#define stbiw__sbfree(a) ((a) ? STBIW_FREE(stbiw__sbraw(a)),0 : 0)
static void *stbiw__sbgrowf(void **arr, int increment, int itemsize)
{
int m = *arr ? 2*stbiw__sbm(*arr)+increment : increment+1;
void *p = STBIW_REALLOC_SIZED(*arr ? stbiw__sbraw(*arr) : 0, *arr ? (stbiw__sbm(*arr)*itemsize + sizeof(int)*2) : 0, itemsize * m + sizeof(int)*2);
STBIW_ASSERT(p);
if (p) {
if (!*arr) ((int *) p)[1] = 0;
*arr = (void *) ((int *) p + 2);
stbiw__sbm(*arr) = m;
}
return *arr;
}
static unsigned char *stbiw__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount)
{
while (*bitcount >= 8) {
stbiw__sbpush(data, STBIW_UCHAR(*bitbuffer));
*bitbuffer >>= 8;
*bitcount -= 8;
}
return data;
}
static int stbiw__zlib_bitrev(int code, int codebits)
{
int res=0;
while (codebits--) {
res = (res << 1) | (code & 1);
code >>= 1;
}
return res;
}
static unsigned int stbiw__zlib_countm(unsigned char *a, unsigned char *b, int limit)
{
int i;
for (i=0; i < limit && i < 258; ++i)
if (a[i] != b[i]) break;
return i;
}
static unsigned int stbiw__zhash(unsigned char *data)
{
stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16);
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
#define stbiw__zlib_flush() (out = stbiw__zlib_flushf(out, &bitbuf, &bitcount))
#define stbiw__zlib_add(code,codebits) \
(bitbuf |= (code) << bitcount, bitcount += (codebits), stbiw__zlib_flush())
#define stbiw__zlib_huffa(b,c) stbiw__zlib_add(stbiw__zlib_bitrev(b,c),c)
// default huffman tables
#define stbiw__zlib_huff1(n) stbiw__zlib_huffa(0x30 + (n), 8)
#define stbiw__zlib_huff2(n) stbiw__zlib_huffa(0x190 + (n)-144, 9)
#define stbiw__zlib_huff3(n) stbiw__zlib_huffa(0 + (n)-256,7)
#define stbiw__zlib_huff4(n) stbiw__zlib_huffa(0xc0 + (n)-280,8)
#define stbiw__zlib_huff(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : (n) <= 255 ? stbiw__zlib_huff2(n) : (n) <= 279 ? stbiw__zlib_huff3(n) : stbiw__zlib_huff4(n))
#define stbiw__zlib_huffb(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : stbiw__zlib_huff2(n))
#define stbiw__ZHASH 16384
#endif // STBIW_ZLIB_COMPRESS
STBIWDEF unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality)
{
#ifdef STBIW_ZLIB_COMPRESS
// user provided a zlib compress implementation, use that
return STBIW_ZLIB_COMPRESS(data, data_len, out_len, quality);
#else // use builtin
static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 };
static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 };
static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 };
static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 };
unsigned int bitbuf=0;
int i,j, bitcount=0;
unsigned char *out = NULL;
unsigned char ***hash_table = (unsigned char***) STBIW_MALLOC(stbiw__ZHASH * sizeof(unsigned char**));
if (hash_table == NULL)
return NULL;
if (quality < 5) quality = 5;
stbiw__sbpush(out, 0x78); // DEFLATE 32K window
stbiw__sbpush(out, 0x5e); // FLEVEL = 1
stbiw__zlib_add(1,1); // BFINAL = 1
stbiw__zlib_add(1,2); // BTYPE = 1 -- fixed huffman
for (i=0; i < stbiw__ZHASH; ++i)
hash_table[i] = NULL;
i=0;
while (i < data_len-3) {
// hash next 3 bytes of data to be compressed
int h = stbiw__zhash(data+i)&(stbiw__ZHASH-1), best=3;
unsigned char *bestloc = 0;
unsigned char **hlist = hash_table[h];
int n = stbiw__sbcount(hlist);
for (j=0; j < n; ++j) {
if (hlist[j]-data > i-32768) { // if entry lies within window
int d = stbiw__zlib_countm(hlist[j], data+i, data_len-i);
if (d >= best) { best=d; bestloc=hlist[j]; }
}
}
// when hash table entry is too long, delete half the entries
if (hash_table[h] && stbiw__sbn(hash_table[h]) == 2*quality) {
STBIW_MEMMOVE(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality);
stbiw__sbn(hash_table[h]) = quality;
}
stbiw__sbpush(hash_table[h],data+i);
if (bestloc) {
// "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal
h = stbiw__zhash(data+i+1)&(stbiw__ZHASH-1);
hlist = hash_table[h];
n = stbiw__sbcount(hlist);
for (j=0; j < n; ++j) {
if (hlist[j]-data > i-32767) {
int e = stbiw__zlib_countm(hlist[j], data+i+1, data_len-i-1);
if (e > best) { // if next match is better, bail on current match
bestloc = NULL;
break;
}
}
}
}
if (bestloc) {
int d = (int) (data+i - bestloc); // distance back
STBIW_ASSERT(d <= 32767 && best <= 258);
for (j=0; best > lengthc[j+1]-1; ++j);
stbiw__zlib_huff(j+257);
if (lengtheb[j]) stbiw__zlib_add(best - lengthc[j], lengtheb[j]);
for (j=0; d > distc[j+1]-1; ++j);
stbiw__zlib_add(stbiw__zlib_bitrev(j,5),5);
if (disteb[j]) stbiw__zlib_add(d - distc[j], disteb[j]);
i += best;
} else {
stbiw__zlib_huffb(data[i]);
++i;
}
}
// write out final bytes
for (;i < data_len; ++i)
stbiw__zlib_huffb(data[i]);
stbiw__zlib_huff(256); // end of block
// pad with 0 bits to byte boundary
while (bitcount)
stbiw__zlib_add(0,1);
for (i=0; i < stbiw__ZHASH; ++i)
(void) stbiw__sbfree(hash_table[i]);
STBIW_FREE(hash_table);
// store uncompressed instead if compression was worse
if (stbiw__sbn(out) > data_len + 2 + ((data_len+32766)/32767)*5) {
stbiw__sbn(out) = 2; // truncate to DEFLATE 32K window and FLEVEL = 1
for (j = 0; j < data_len;) {
int blocklen = data_len - j;
if (blocklen > 32767) blocklen = 32767;
stbiw__sbpush(out, data_len - j == blocklen); // BFINAL = ?, BTYPE = 0 -- no compression
stbiw__sbpush(out, STBIW_UCHAR(blocklen)); // LEN
stbiw__sbpush(out, STBIW_UCHAR(blocklen >> 8));
stbiw__sbpush(out, STBIW_UCHAR(~blocklen)); // NLEN
stbiw__sbpush(out, STBIW_UCHAR(~blocklen >> 8));
memcpy(out+stbiw__sbn(out), data+j, blocklen);
stbiw__sbn(out) += blocklen;
j += blocklen;
}
}
{
// compute adler32 on input
unsigned int s1=1, s2=0;
int blocklen = (int) (data_len % 5552);
j=0;
while (j < data_len) {
for (i=0; i < blocklen; ++i) { s1 += data[j+i]; s2 += s1; }
s1 %= 65521; s2 %= 65521;
j += blocklen;
blocklen = 5552;
}
stbiw__sbpush(out, STBIW_UCHAR(s2 >> 8));
stbiw__sbpush(out, STBIW_UCHAR(s2));
stbiw__sbpush(out, STBIW_UCHAR(s1 >> 8));
stbiw__sbpush(out, STBIW_UCHAR(s1));
}
*out_len = stbiw__sbn(out);
// make returned pointer freeable
STBIW_MEMMOVE(stbiw__sbraw(out), out, *out_len);
return (unsigned char *) stbiw__sbraw(out);
#endif // STBIW_ZLIB_COMPRESS
}
static unsigned int stbiw__crc32(unsigned char *buffer, int len)
{
#ifdef STBIW_CRC32
return STBIW_CRC32(buffer, len);
#else
static unsigned int crc_table[256] =
{
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0eDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
};
unsigned int crc = ~0u;
int i;
for (i=0; i < len; ++i)
crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)];
return ~crc;
#endif
}
#define stbiw__wpng4(o,a,b,c,d) ((o)[0]=STBIW_UCHAR(a),(o)[1]=STBIW_UCHAR(b),(o)[2]=STBIW_UCHAR(c),(o)[3]=STBIW_UCHAR(d),(o)+=4)
#define stbiw__wp32(data,v) stbiw__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v));
#define stbiw__wptag(data,s) stbiw__wpng4(data, s[0],s[1],s[2],s[3])
static void stbiw__wpcrc(unsigned char **data, int len)
{
unsigned int crc = stbiw__crc32(*data - len - 4, len+4);
stbiw__wp32(*data, crc);
}
static unsigned char stbiw__paeth(int a, int b, int c)
{
int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c);
if (pa <= pb && pa <= pc) return STBIW_UCHAR(a);
if (pb <= pc) return STBIW_UCHAR(b);
return STBIW_UCHAR(c);
}
// @OPTIMIZE: provide an option that always forces left-predict or paeth predict
static void stbiw__encode_png_line(unsigned char *pixels, int stride_bytes, int width, int height, int y, int n, int filter_type, signed char *line_buffer)
{
static int mapping[] = { 0,1,2,3,4 };
static int firstmap[] = { 0,1,0,5,6 };
int *mymap = (y != 0) ? mapping : firstmap;
int i;
int type = mymap[filter_type];
unsigned char *z = pixels + stride_bytes * (stbi__flip_vertically_on_write ? height-1-y : y);
int signed_stride = stbi__flip_vertically_on_write ? -stride_bytes : stride_bytes;
if (type==0) {
memcpy(line_buffer, z, width*n);
return;
}
// first loop isn't optimized since it's just one pixel
for (i = 0; i < n; ++i) {
switch (type) {
case 1: line_buffer[i] = z[i]; break;
case 2: line_buffer[i] = z[i] - z[i-signed_stride]; break;
case 3: line_buffer[i] = z[i] - (z[i-signed_stride]>>1); break;
case 4: line_buffer[i] = (signed char) (z[i] - stbiw__paeth(0,z[i-signed_stride],0)); break;
case 5: line_buffer[i] = z[i]; break;
case 6: line_buffer[i] = z[i]; break;
}
}
switch (type) {
case 1: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-n]; break;
case 2: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-signed_stride]; break;
case 3: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - ((z[i-n] + z[i-signed_stride])>>1); break;
case 4: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], z[i-signed_stride], z[i-signed_stride-n]); break;
case 5: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - (z[i-n]>>1); break;
case 6: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], 0,0); break;
}
}
STBIWDEF unsigned char *stbi_write_png_to_mem(const unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
{
int force_filter = stbi_write_force_png_filter;
int ctype[5] = { -1, 0, 4, 2, 6 };
unsigned char sig[8] = { 137,80,78,71,13,10,26,10 };
unsigned char *out,*o, *filt, *zlib;
signed char *line_buffer;
int j,zlen;
if (stride_bytes == 0)
stride_bytes = x * n;
if (force_filter >= 5) {
force_filter = -1;
}
filt = (unsigned char *) STBIW_MALLOC((x*n+1) * y); if (!filt) return 0;
line_buffer = (signed char *) STBIW_MALLOC(x * n); if (!line_buffer) { STBIW_FREE(filt); return 0; }
for (j=0; j < y; ++j) {
int filter_type;
if (force_filter > -1) {
filter_type = force_filter;
stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, force_filter, line_buffer);
} else { // Estimate the best filter by running through all of them:
int best_filter = 0, best_filter_val = 0x7fffffff, est, i;
for (filter_type = 0; filter_type < 5; filter_type++) {
stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, filter_type, line_buffer);
// Estimate the entropy of the line using this filter; the less, the better.
est = 0;
for (i = 0; i < x*n; ++i) {
est += abs((signed char) line_buffer[i]);
}
if (est < best_filter_val) {
best_filter_val = est;
best_filter = filter_type;
}
}
if (filter_type != best_filter) { // If the last iteration already got us the best filter, don't redo it
stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, best_filter, line_buffer);
filter_type = best_filter;
}
}
// when we get here, filter_type contains the filter type, and line_buffer contains the data
filt[j*(x*n+1)] = (unsigned char) filter_type;
STBIW_MEMMOVE(filt+j*(x*n+1)+1, line_buffer, x*n);
}
STBIW_FREE(line_buffer);
zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, stbi_write_png_compression_level);
STBIW_FREE(filt);
if (!zlib) return 0;
// each tag requires 12 bytes of overhead
out = (unsigned char *) STBIW_MALLOC(8 + 12+13 + 12+zlen + 12);
if (!out) return 0;
*out_len = 8 + 12+13 + 12+zlen + 12;
o=out;
STBIW_MEMMOVE(o,sig,8); o+= 8;
stbiw__wp32(o, 13); // header length
stbiw__wptag(o, "IHDR");
stbiw__wp32(o, x);
stbiw__wp32(o, y);
*o++ = 8;
*o++ = STBIW_UCHAR(ctype[n]);
*o++ = 0;
*o++ = 0;
*o++ = 0;
stbiw__wpcrc(&o,13);
stbiw__wp32(o, zlen);
stbiw__wptag(o, "IDAT");
STBIW_MEMMOVE(o, zlib, zlen);
o += zlen;
STBIW_FREE(zlib);
stbiw__wpcrc(&o, zlen);
stbiw__wp32(o,0);
stbiw__wptag(o, "IEND");
stbiw__wpcrc(&o,0);
STBIW_ASSERT(o == out + *out_len);
return out;
}
#ifndef STBI_WRITE_NO_STDIO
STBIWDEF int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes)
{
FILE *f;
int len;
unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len);
if (png == NULL) return 0;
f = stbiw__fopen(filename, "wb");
if (!f) { STBIW_FREE(png); return 0; }
fwrite(png, 1, len, f);
fclose(f);
STBIW_FREE(png);
return 1;
}
#endif
STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
{
int len;
unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len);
if (png == NULL) return 0;
func(context, png, len);
STBIW_FREE(png);
return 1;
}
/* ***************************************************************************
*
* JPEG writer
*
* This is based on Jon Olick's jo_jpeg.cpp:
* public domain Simple, Minimalistic JPEG writer - http://www.jonolick.com/code.html
*/
static const unsigned char stbiw__jpg_ZigZag[] = { 0,1,5,6,14,15,27,28,2,4,7,13,16,26,29,42,3,8,12,17,25,30,41,43,9,11,18,
24,31,40,44,53,10,19,23,32,39,45,52,54,20,22,33,38,46,51,55,60,21,34,37,47,50,56,59,61,35,36,48,49,57,58,62,63 };
static void stbiw__jpg_writeBits(stbi__write_context *s, int *bitBufP, int *bitCntP, const unsigned short *bs) {
int bitBuf = *bitBufP, bitCnt = *bitCntP;
bitCnt += bs[1];
bitBuf |= bs[0] << (24 - bitCnt);
while(bitCnt >= 8) {
unsigned char c = (bitBuf >> 16) & 255;
stbiw__putc(s, c);
if(c == 255) {
stbiw__putc(s, 0);
}
bitBuf <<= 8;
bitCnt -= 8;
}
*bitBufP = bitBuf;
*bitCntP = bitCnt;
}
static void stbiw__jpg_DCT(float *d0p, float *d1p, float *d2p, float *d3p, float *d4p, float *d5p, float *d6p, float *d7p) {
float d0 = *d0p, d1 = *d1p, d2 = *d2p, d3 = *d3p, d4 = *d4p, d5 = *d5p, d6 = *d6p, d7 = *d7p;
float z1, z2, z3, z4, z5, z11, z13;
float tmp0 = d0 + d7;
float tmp7 = d0 - d7;
float tmp1 = d1 + d6;
float tmp6 = d1 - d6;
float tmp2 = d2 + d5;
float tmp5 = d2 - d5;
float tmp3 = d3 + d4;
float tmp4 = d3 - d4;
// Even part
float tmp10 = tmp0 + tmp3; // phase 2
float tmp13 = tmp0 - tmp3;
float tmp11 = tmp1 + tmp2;
float tmp12 = tmp1 - tmp2;
d0 = tmp10 + tmp11; // phase 3
d4 = tmp10 - tmp11;
z1 = (tmp12 + tmp13) * 0.707106781f; // c4
d2 = tmp13 + z1; // phase 5
d6 = tmp13 - z1;
// Odd part
tmp10 = tmp4 + tmp5; // phase 2
tmp11 = tmp5 + tmp6;
tmp12 = tmp6 + tmp7;
// The rotator is modified from fig 4-8 to avoid extra negations.
z5 = (tmp10 - tmp12) * 0.382683433f; // c6
z2 = tmp10 * 0.541196100f + z5; // c2-c6
z4 = tmp12 * 1.306562965f + z5; // c2+c6
z3 = tmp11 * 0.707106781f; // c4
z11 = tmp7 + z3; // phase 5
z13 = tmp7 - z3;
*d5p = z13 + z2; // phase 6
*d3p = z13 - z2;
*d1p = z11 + z4;
*d7p = z11 - z4;
*d0p = d0; *d2p = d2; *d4p = d4; *d6p = d6;
}
static void stbiw__jpg_calcBits(int val, unsigned short bits[2]) {
int tmp1 = val < 0 ? -val : val;
val = val < 0 ? val-1 : val;
bits[1] = 1;
while(tmp1 >>= 1) {
++bits[1];
}
bits[0] = val & ((1<<bits[1])-1);
}
static int stbiw__jpg_processDU(stbi__write_context *s, int *bitBuf, int *bitCnt, float *CDU, int du_stride, float *fdtbl, int DC, const unsigned short HTDC[256][2], const unsigned short HTAC[256][2]) {
const unsigned short EOB[2] = { HTAC[0x00][0], HTAC[0x00][1] };
const unsigned short M16zeroes[2] = { HTAC[0xF0][0], HTAC[0xF0][1] };
int dataOff, i, j, n, diff, end0pos, x, y;
int DU[64];
// DCT rows
for(dataOff=0, n=du_stride*8; dataOff<n; dataOff+=du_stride) {
stbiw__jpg_DCT(&CDU[dataOff], &CDU[dataOff+1], &CDU[dataOff+2], &CDU[dataOff+3], &CDU[dataOff+4], &CDU[dataOff+5], &CDU[dataOff+6], &CDU[dataOff+7]);
}
// DCT columns
for(dataOff=0; dataOff<8; ++dataOff) {
stbiw__jpg_DCT(&CDU[dataOff], &CDU[dataOff+du_stride], &CDU[dataOff+du_stride*2], &CDU[dataOff+du_stride*3], &CDU[dataOff+du_stride*4],
&CDU[dataOff+du_stride*5], &CDU[dataOff+du_stride*6], &CDU[dataOff+du_stride*7]);
}
// Quantize/descale/zigzag the coefficients
for(y = 0, j=0; y < 8; ++y) {
for(x = 0; x < 8; ++x,++j) {
float v;
i = y*du_stride+x;
v = CDU[i]*fdtbl[j];
// DU[stbiw__jpg_ZigZag[j]] = (int)(v < 0 ? ceilf(v - 0.5f) : floorf(v + 0.5f));
// ceilf() and floorf() are C99, not C89, but I /think/ they're not needed here anyway?
DU[stbiw__jpg_ZigZag[j]] = (int)(v < 0 ? v - 0.5f : v + 0.5f);
}
}
// Encode DC
diff = DU[0] - DC;
if (diff == 0) {
stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTDC[0]);
} else {
unsigned short bits[2];
stbiw__jpg_calcBits(diff, bits);
stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTDC[bits[1]]);
stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits);
}
// Encode ACs
end0pos = 63;
for(; (end0pos>0)&&(DU[end0pos]==0); --end0pos) {
}
// end0pos = first element in reverse order !=0
if(end0pos == 0) {
stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB);
return DU[0];
}
for(i = 1; i <= end0pos; ++i) {
int startpos = i;
int nrzeroes;
unsigned short bits[2];
for (; DU[i]==0 && i<=end0pos; ++i) {
}
nrzeroes = i-startpos;
if ( nrzeroes >= 16 ) {
int lng = nrzeroes>>4;
int nrmarker;
for (nrmarker=1; nrmarker <= lng; ++nrmarker)
stbiw__jpg_writeBits(s, bitBuf, bitCnt, M16zeroes);
nrzeroes &= 15;
}
stbiw__jpg_calcBits(DU[i], bits);
stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTAC[(nrzeroes<<4)+bits[1]]);
stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits);
}
if(end0pos != 63) {
stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB);
}
return DU[0];
}
static int stbi_write_jpg_core(stbi__write_context *s, int width, int height, int comp, const void* data, int quality) {
// Constants that don't pollute global namespace
static const unsigned char std_dc_luminance_nrcodes[] = {0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0};
static const unsigned char std_dc_luminance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11};
static const unsigned char std_ac_luminance_nrcodes[] = {0,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,0x7d};
static const unsigned char std_ac_luminance_values[] = {
0x01,0x02,0x03,0x00,0x04,0x11,0x05,0x12,0x21,0x31,0x41,0x06,0x13,0x51,0x61,0x07,0x22,0x71,0x14,0x32,0x81,0x91,0xa1,0x08,
0x23,0x42,0xb1,0xc1,0x15,0x52,0xd1,0xf0,0x24,0x33,0x62,0x72,0x82,0x09,0x0a,0x16,0x17,0x18,0x19,0x1a,0x25,0x26,0x27,0x28,
0x29,0x2a,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58,0x59,
0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x83,0x84,0x85,0x86,0x87,0x88,0x89,
0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4,0xb5,0xb6,
0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xe1,0xe2,
0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa
};
static const unsigned char std_dc_chrominance_nrcodes[] = {0,0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0};
static const unsigned char std_dc_chrominance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11};
static const unsigned char std_ac_chrominance_nrcodes[] = {0,0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,0x77};
static const unsigned char std_ac_chrominance_values[] = {
0x00,0x01,0x02,0x03,0x11,0x04,0x05,0x21,0x31,0x06,0x12,0x41,0x51,0x07,0x61,0x71,0x13,0x22,0x32,0x81,0x08,0x14,0x42,0x91,
0xa1,0xb1,0xc1,0x09,0x23,0x33,0x52,0xf0,0x15,0x62,0x72,0xd1,0x0a,0x16,0x24,0x34,0xe1,0x25,0xf1,0x17,0x18,0x19,0x1a,0x26,
0x27,0x28,0x29,0x2a,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58,
0x59,0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x82,0x83,0x84,0x85,0x86,0x87,
0x88,0x89,0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4,
0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,
0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa
};
// Huffman tables
static const unsigned short YDC_HT[256][2] = { {0,2},{2,3},{3,3},{4,3},{5,3},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9}};
static const unsigned short UVDC_HT[256][2] = { {0,2},{1,2},{2,2},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9},{1022,10},{2046,11}};
static const unsigned short YAC_HT[256][2] = {
{10,4},{0,2},{1,2},{4,3},{11,4},{26,5},{120,7},{248,8},{1014,10},{65410,16},{65411,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{12,4},{27,5},{121,7},{502,9},{2038,11},{65412,16},{65413,16},{65414,16},{65415,16},{65416,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{28,5},{249,8},{1015,10},{4084,12},{65417,16},{65418,16},{65419,16},{65420,16},{65421,16},{65422,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{58,6},{503,9},{4085,12},{65423,16},{65424,16},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{59,6},{1016,10},{65430,16},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{122,7},{2039,11},{65438,16},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{123,7},{4086,12},{65446,16},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{250,8},{4087,12},{65454,16},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{504,9},{32704,15},{65462,16},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{505,9},{65470,16},{65471,16},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{506,9},{65479,16},{65480,16},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{1017,10},{65488,16},{65489,16},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{1018,10},{65497,16},{65498,16},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{2040,11},{65506,16},{65507,16},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{65515,16},{65516,16},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{0,0},{0,0},{0,0},{0,0},{0,0},
{2041,11},{65525,16},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0}
};
static const unsigned short UVAC_HT[256][2] = {
{0,2},{1,2},{4,3},{10,4},{24,5},{25,5},{56,6},{120,7},{500,9},{1014,10},{4084,12},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{11,4},{57,6},{246,8},{501,9},{2038,11},{4085,12},{65416,16},{65417,16},{65418,16},{65419,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{26,5},{247,8},{1015,10},{4086,12},{32706,15},{65420,16},{65421,16},{65422,16},{65423,16},{65424,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{27,5},{248,8},{1016,10},{4087,12},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{65430,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{58,6},{502,9},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{65438,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{59,6},{1017,10},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{65446,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{121,7},{2039,11},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{65454,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{122,7},{2040,11},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{65462,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{249,8},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{65470,16},{65471,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{503,9},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{65479,16},{65480,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{504,9},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{65488,16},{65489,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{505,9},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{65497,16},{65498,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{506,9},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{65506,16},{65507,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{2041,11},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{65515,16},{65516,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
{16352,14},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{65525,16},{0,0},{0,0},{0,0},{0,0},{0,0},
{1018,10},{32707,15},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0}
};
static const int YQT[] = {16,11,10,16,24,40,51,61,12,12,14,19,26,58,60,55,14,13,16,24,40,57,69,56,14,17,22,29,51,87,80,62,18,22,
37,56,68,109,103,77,24,35,55,64,81,104,113,92,49,64,78,87,103,121,120,101,72,92,95,98,112,100,103,99};
static const int UVQT[] = {17,18,24,47,99,99,99,99,18,21,26,66,99,99,99,99,24,26,56,99,99,99,99,99,47,66,99,99,99,99,99,99,
99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99};
static const float aasf[] = { 1.0f * 2.828427125f, 1.387039845f * 2.828427125f, 1.306562965f * 2.828427125f, 1.175875602f * 2.828427125f,
1.0f * 2.828427125f, 0.785694958f * 2.828427125f, 0.541196100f * 2.828427125f, 0.275899379f * 2.828427125f };
int row, col, i, k, subsample;
float fdtbl_Y[64], fdtbl_UV[64];
unsigned char YTable[64], UVTable[64];
if(!data || !width || !height || comp > 4 || comp < 1) {
return 0;
}
quality = quality ? quality : 90;
subsample = quality <= 90 ? 1 : 0;
quality = quality < 1 ? 1 : quality > 100 ? 100 : quality;
quality = quality < 50 ? 5000 / quality : 200 - quality * 2;
for(i = 0; i < 64; ++i) {
int uvti, yti = (YQT[i]*quality+50)/100;
YTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (yti < 1 ? 1 : yti > 255 ? 255 : yti);
uvti = (UVQT[i]*quality+50)/100;
UVTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (uvti < 1 ? 1 : uvti > 255 ? 255 : uvti);
}
for(row = 0, k = 0; row < 8; ++row) {
for(col = 0; col < 8; ++col, ++k) {
fdtbl_Y[k] = 1 / (YTable [stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]);
fdtbl_UV[k] = 1 / (UVTable[stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]);
}
}
// Write Headers
{
static const unsigned char head0[] = { 0xFF,0xD8,0xFF,0xE0,0,0x10,'J','F','I','F',0,1,1,0,0,1,0,1,0,0,0xFF,0xDB,0,0x84,0 };
static const unsigned char head2[] = { 0xFF,0xDA,0,0xC,3,1,0,2,0x11,3,0x11,0,0x3F,0 };
const unsigned char head1[] = { 0xFF,0xC0,0,0x11,8,(unsigned char)(height>>8),STBIW_UCHAR(height),(unsigned char)(width>>8),STBIW_UCHAR(width),
3,1,(unsigned char)(subsample?0x22:0x11),0,2,0x11,1,3,0x11,1,0xFF,0xC4,0x01,0xA2,0 };
s->func(s->context, (void*)head0, sizeof(head0));
s->func(s->context, (void*)YTable, sizeof(YTable));
stbiw__putc(s, 1);
s->func(s->context, UVTable, sizeof(UVTable));
s->func(s->context, (void*)head1, sizeof(head1));
s->func(s->context, (void*)(std_dc_luminance_nrcodes+1), sizeof(std_dc_luminance_nrcodes)-1);
s->func(s->context, (void*)std_dc_luminance_values, sizeof(std_dc_luminance_values));
stbiw__putc(s, 0x10); // HTYACinfo
s->func(s->context, (void*)(std_ac_luminance_nrcodes+1), sizeof(std_ac_luminance_nrcodes)-1);
s->func(s->context, (void*)std_ac_luminance_values, sizeof(std_ac_luminance_values));
stbiw__putc(s, 1); // HTUDCinfo
s->func(s->context, (void*)(std_dc_chrominance_nrcodes+1), sizeof(std_dc_chrominance_nrcodes)-1);
s->func(s->context, (void*)std_dc_chrominance_values, sizeof(std_dc_chrominance_values));
stbiw__putc(s, 0x11); // HTUACinfo
s->func(s->context, (void*)(std_ac_chrominance_nrcodes+1), sizeof(std_ac_chrominance_nrcodes)-1);
s->func(s->context, (void*)std_ac_chrominance_values, sizeof(std_ac_chrominance_values));
s->func(s->context, (void*)head2, sizeof(head2));
}
// Encode 8x8 macroblocks
{
static const unsigned short fillBits[] = {0x7F, 7};
int DCY=0, DCU=0, DCV=0;
int bitBuf=0, bitCnt=0;
// comp == 2 is grey+alpha (alpha is ignored)
int ofsG = comp > 2 ? 1 : 0, ofsB = comp > 2 ? 2 : 0;
const unsigned char *dataR = (const unsigned char *)data;
const unsigned char *dataG = dataR + ofsG;
const unsigned char *dataB = dataR + ofsB;
int x, y, pos;
if(subsample) {
for(y = 0; y < height; y += 16) {
for(x = 0; x < width; x += 16) {
float Y[256], U[256], V[256];
for(row = y, pos = 0; row < y+16; ++row) {
// row >= height => use last input row
int clamped_row = (row < height) ? row : height - 1;
int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp;
for(col = x; col < x+16; ++col, ++pos) {
// if col >= width => use pixel from last input column
int p = base_p + ((col < width) ? col : (width-1))*comp;
float r = dataR[p], g = dataG[p], b = dataB[p];
Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128;
U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b;
V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b;
}
}
DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+0, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+8, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+128, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+136, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
// subsample U,V
{
float subU[64], subV[64];
int yy, xx;
for(yy = 0, pos = 0; yy < 8; ++yy) {
for(xx = 0; xx < 8; ++xx, ++pos) {
int j = yy*32+xx*2;
subU[pos] = (U[j+0] + U[j+1] + U[j+16] + U[j+17]) * 0.25f;
subV[pos] = (V[j+0] + V[j+1] + V[j+16] + V[j+17]) * 0.25f;
}
}
DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subU, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT);
DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subV, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT);
}
}
}
} else {
for(y = 0; y < height; y += 8) {
for(x = 0; x < width; x += 8) {
float Y[64], U[64], V[64];
for(row = y, pos = 0; row < y+8; ++row) {
// row >= height => use last input row
int clamped_row = (row < height) ? row : height - 1;
int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp;
for(col = x; col < x+8; ++col, ++pos) {
// if col >= width => use pixel from last input column
int p = base_p + ((col < width) ? col : (width-1))*comp;
float r = dataR[p], g = dataG[p], b = dataB[p];
Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128;
U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b;
V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b;
}
}
DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y, 8, fdtbl_Y, DCY, YDC_HT, YAC_HT);
DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, U, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT);
DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, V, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT);
}
}
}
// Do the bit alignment of the EOI marker
stbiw__jpg_writeBits(s, &bitBuf, &bitCnt, fillBits);
}
// EOI
stbiw__putc(s, 0xFF);
stbiw__putc(s, 0xD9);
return 1;
}
STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
{
stbi__write_context s = { 0 };
stbi__start_write_callbacks(&s, func, context);
return stbi_write_jpg_core(&s, x, y, comp, (void *) data, quality);
}
#ifndef STBI_WRITE_NO_STDIO
STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality)
{
stbi__write_context s = { 0 };
if (stbi__start_write_file(&s,filename)) {
int r = stbi_write_jpg_core(&s, x, y, comp, data, quality);
stbi__end_write_file(&s);
return r;
} else
return 0;
}
#endif
#endif // STB_IMAGE_WRITE_IMPLEMENTATION
/* Revision history
1.16 (2021-07-11)
make Deflate code emit uncompressed blocks when it would otherwise expand
support writing BMPs with alpha channel
1.15 (2020-07-13) unknown
1.14 (2020-02-02) updated JPEG writer to downsample chroma channels
1.13
1.12
1.11 (2019-08-11)
1.10 (2019-02-07)
support utf8 filenames in Windows; fix warnings and platform ifdefs
1.09 (2018-02-11)
fix typo in zlib quality API, improve STB_I_W_STATIC in C++
1.08 (2018-01-29)
add stbi__flip_vertically_on_write, external zlib, zlib quality, choose PNG filter
1.07 (2017-07-24)
doc fix
1.06 (2017-07-23)
writing JPEG (using Jon Olick's code)
1.05 ???
1.04 (2017-03-03)
monochrome BMP expansion
1.03 ???
1.02 (2016-04-02)
avoid allocating large structures on the stack
1.01 (2016-01-16)
STBIW_REALLOC_SIZED: support allocators with no realloc support
avoid race-condition in crc initialization
minor compile issues
1.00 (2015-09-14)
installable file IO function
0.99 (2015-09-13)
warning fixes; TGA rle support
0.98 (2015-04-08)
added STBIW_MALLOC, STBIW_ASSERT etc
0.97 (2015-01-18)
fixed HDR asserts, rewrote HDR rle logic
0.96 (2015-01-17)
add HDR output
fix monochrome BMP
0.95 (2014-08-17)
add monochrome TGA output
0.94 (2014-05-31)
rename private functions to avoid conflicts with stb_image.h
0.93 (2014-05-27)
warning fixes
0.92 (2010-08-01)
casts to unsigned char to fix warnings
0.91 (2010-07-17)
first public release
0.90 first internal release
*/
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/
|
0 | repos/zig_vulkan/deps/stb_image | repos/zig_vulkan/deps/stb_image/c_src/stb_image.c | /*
This file exist only to compile the stb_image obj
See issue: https://github.com/ziglang/zig/issues/3495
*/
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include "stb_image_write.h"
|
0 | repos/zig_vulkan/deps/stb_image | repos/zig_vulkan/deps/stb_image/src/c.zig | pub usingnamespace @cImport({
@cInclude("stb_image.h");
@cInclude("stb_image_write.h");
});
|
0 | repos/zig_vulkan/deps/stb_image | repos/zig_vulkan/deps/stb_image/src/main.zig | const std = @import("std");
const Allocator = std.mem.Allocator;
const testing = std.testing;
const c = @import("c.zig");
pub const Pixel = struct {
r: u8,
g: u8,
b: u8,
a: u8,
};
/// Utility wrapper for stb_load functions
pub const Image = struct {
allocator: Allocator,
width: i32,
height: i32,
channels: i32,
data: []Pixel,
loaded_from_file: bool,
pub fn initUndefined(allocator: Allocator, width: i32, height: i32) !Image {
return Image{
.allocator = allocator,
.width = width,
.height = height,
.channels = 4,
.data = try allocator.alloc(Pixel, @intCast(usize, width * height)),
.loaded_from_file = false,
};
}
// TODO: remove comptime keyword -> // TODO: acount for any channel type
/// Caller must call deinit to free created memory
pub fn fromFile(allocator: Allocator, path: []const u8, comptime desired_channels: DesiredChannels) !Image {
const use_path = try buildPath(allocator, path);
defer allocator.destroy(use_path.ptr);
// TODO: acount for any channel type
if (desired_channels != DesiredChannels.STBI_rgb_alpha) {
@compileError("unimplemented channel type, expected " ++ @tagName(DesiredChannels.STBI_rgb_alpha) ++ ", found " ++ @tagName(desired_channels));
}
var width: i32 = undefined;
var height: i32 = undefined;
var channels: i32 = undefined;
const char_ptr = c.stbi_load(use_path.ptr, &width, &height, &channels, @enumToInt(desired_channels));
if (char_ptr == null) {
return error.FailedToLoadImage; // Only error scenario here is failed to open file descriptor
}
// TODO: account for any channel type
if (channels != 3) {
std.debug.panic("got image with unimplemented channel count: {d}", .{channels});
}
const char_slice = std.mem.span(char_ptr);
const aligned_char_ptr = std.mem.alignPointer(char_slice.ptr, 8);
if (aligned_char_ptr == null) {
return error.PtrNotAligned; // failed to align char pointer as a pixel pointer
}
const pixel_ptr = @ptrCast([*]Pixel, aligned_char_ptr);
const pixel_count = @intCast(usize, width * height);
return Image{
.allocator = allocator,
.width = width,
.height = height,
.channels = channels,
.data = pixel_ptr[0..pixel_count],
.loaded_from_file = true,
};
}
pub fn save_write_png(self: Image, allocator: Allocator, path: []const u8) !void {
const use_path = try buildPath(allocator, path);
defer allocator.destroy(use_path.ptr);
const char_ptr = std.mem.alignPointer(self.data.ptr, 2);
const error_code = c.stbi_write_png(use_path.ptr, self.width, self.height, self.channels, char_ptr, self.width * self.channels);
if (error_code == 0) {
return error.StbiFailedWrite; // error scenarios are not specified :(
}
}
pub fn deinit(self: Image) void {
if (self.loaded_from_file) {
c.stbi_image_free(self.data.ptr);
} else {
self.allocator.free(self.data);
}
}
};
/// Enum defined by stb_image
pub const DesiredChannels = enum(c_int) {
STBI_default = 0, // only used for desired_channels
STBI_grey = 1,
STBI_grey_alpha = 2,
STBI_rgb = 3,
STBI_rgb_alpha = 4,
};
inline fn buildPath(allocator: Allocator, path: []const u8) ![:0]u8 {
var buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
const exe_path = try std.fs.selfExeDirPath(buf[0..]);
const path_segments = [_][]const u8{ exe_path, path };
var zig_use_path = try std.fs.path.join(allocator, path_segments[0..]);
defer allocator.destroy(zig_use_path.ptr);
const sep = [_]u8{std.fs.path.sep};
_ = std.mem.replace(u8, zig_use_path, "\\", sep[0..], zig_use_path);
_ = std.mem.replace(u8, zig_use_path, "/", sep[0..], zig_use_path);
return try std.cstr.addNullByte(allocator, zig_use_path);
}
// TODO: TESTING!
// test "basic add functionality" {
// try testing.expect(add(3, 7) == 10);
// }
|
0 | repos/zig_vulkan | repos/zig_vulkan/src/main.zig | const std = @import("std");
const assert = std.debug.assert;
const Allocator = std.mem.Allocator;
const ArrayList = std.ArrayList;
const glfw = @import("glfw");
const za = @import("zalgebra");
const ztracy = @import("ztracy");
const render = @import("modules/render.zig");
const consts = render.consts;
const Input = @import("modules/Input.zig");
const InputModeCursor = Input.InputModeCursor;
// TODO: API topology
const VoxelRT = @import("modules/VoxelRT.zig");
const BrickGrid = VoxelRT.BrickGrid;
const gpu_types = VoxelRT.gpu_types;
const vox = VoxelRT.vox;
const terrain = VoxelRT.terrain;
pub const application_name = "zig vulkan";
pub const internal_render_resolution = za.GenericVector(2, u32).new(1024, 576);
// TODO: wrap this in render to make main seem simpler :^)
var delta_time: f64 = 0;
var activate_sprint: bool = false;
var call_translate: u8 = 0;
var camera_translate = za.Vec3.zero();
var input: Input = undefined;
var call_yaw = false;
var call_pitch = false;
var mouse_delta = za.Vec2.zero();
var mouse_ignore_frames: u32 = 5;
pub fn main() anyerror!void {
ztracy.SetThreadName("main thread");
const main_zone = ztracy.ZoneN(@src(), "main");
defer main_zone.End();
const stderr = std.io.getStdErr().writer();
// create a gpa with default configuration
var alloc = if (consts.enable_validation_layers) std.heap.GeneralPurposeAllocator(.{}){} else std.heap.c_allocator;
defer {
if (consts.enable_validation_layers) {
const leak = alloc.deinit();
if (leak) {
stderr.print("leak detected in gpa!", .{}) catch unreachable;
}
}
}
const allocator = if (consts.enable_validation_layers) alloc.allocator() else alloc;
// Initialize the library *
if (glfw.init(.{}) == false) {
return error.GlfwFailedToInitialize;
}
defer glfw.terminate();
if (!glfw.vulkanSupported()) {
std.debug.panic("vulkan not supported on device (glfw)", .{});
}
// Create a windowed mode window
var window = glfw.Window.create(3840, 2160, application_name, null, null, .{
.center_cursor = true,
.client_api = .no_api,
.maximized = true,
.scale_to_monitor = true,
.focused = true,
}) orelse {
return error.GlfwCreateWindowFailed;
};
defer window.destroy();
const ctx = try render.Context.init(allocator, application_name, &window);
defer ctx.deinit();
var grid = try BrickGrid.init(allocator, 64, 32, 64, .{
.min_point = [3]f32{ -32, -16, -32 },
.material_indices_per_brick = 128,
.workers_count = 4,
});
defer grid.deinit();
// force workers to sleep while terrain generate
grid.sleepWorkers();
const model = try vox.load(false, allocator, "../assets/models/doom.vox");
defer model.deinit();
var albedo_color: [256]gpu_types.Albedo = undefined;
var materials: [256]gpu_types.Material = undefined;
// insert terrain color
for (terrain.color_data, 0..) |color, i| {
albedo_color[i] = color;
}
// insert terrain materials
for (terrain.material_data, 0..) |material, i| {
materials[i] = material;
}
for (model.rgba_chunk[terrain.color_data.len..], 0..) |rgba, i| {
const albedo_index = i + terrain.color_data.len;
albedo_color[albedo_index] = .{
.color = za.Vec4.new(
@intToFloat(f32, rgba.r) / 255,
@intToFloat(f32, rgba.g) / 255,
@intToFloat(f32, rgba.b) / 255,
@intToFloat(f32, rgba.a) / 255,
).data,
};
const material_index = i + terrain.material_data.len;
materials[material_index] = .{ .type = .metal, .type_index = 0, .albedo_index = @intCast(u8, albedo_index) };
}
// Test what we are loading
for (model.xyzi_chunks[0]) |xyzi| {
grid.insert(@intCast(usize, xyzi.x) + 200, @intCast(usize, xyzi.z) + 50, @intCast(usize, xyzi.y) + 150, xyzi.color_index);
}
// generate terrain on CPU
try terrain.generateCpu(4, allocator, 420, 4, 20, &grid);
var voxel_rt = try VoxelRT.init(allocator, ctx, &grid, .{
.internal_resolution_width = internal_render_resolution.x(),
.internal_resolution_height = internal_render_resolution.y(),
.camera = .{
.samples_per_pixel = 2,
.max_bounce = 2,
},
.sun = .{
.enabled = true,
},
.pipeline = .{
.staging_buffers = 3,
},
});
defer voxel_rt.deinit(allocator, ctx);
try voxel_rt.pushAlbedo(ctx, albedo_color[0..]);
try voxel_rt.pushMaterials(ctx, materials[0..]);
window.setInputMode(glfw.Window.InputMode.cursor, glfw.Window.InputModeCursor.disabled);
// init input module with default input handler functions
input = try Input.init(
allocator,
window,
gameKeyInputFn,
mouseBtnInputFn,
gameCursorPosInputFn,
);
defer input.deinit(allocator);
input.setInputModeCursor(.disabled);
input.setImguiWantInput(false);
voxel_rt.brick_grid.wakeWorkers();
var prev_frame = std.time.milliTimestamp();
// Loop until the user closes the window
while (!window.shouldClose()) {
const current_frame = std.time.milliTimestamp();
delta_time = @intToFloat(f64, current_frame - prev_frame) / @as(f64, std.time.ms_per_s);
// f32 variant of delta_time
const dt = @floatCast(f32, delta_time);
if (call_translate > 0) {
if (activate_sprint) {
voxel_rt.camera.activateSprint();
} else {
voxel_rt.camera.disableSprint();
}
voxel_rt.camera.translate(dt, camera_translate);
}
if (call_yaw) {
voxel_rt.camera.turnYaw(-mouse_delta.x() * dt);
}
if (call_pitch) {
voxel_rt.camera.turnPitch(mouse_delta.y() * dt);
}
if (call_translate > 0 or call_yaw or call_pitch) {
call_yaw = false;
call_pitch = false;
mouse_delta.data[0] = 0;
mouse_delta.data[1] = 0;
// try voxel_rt.debugUpdateTerrain(ctx);
}
voxel_rt.updateSun(dt);
try voxel_rt.updateGridDelta(ctx);
try voxel_rt.draw(ctx, dt);
// Poll for and process events
glfw.pollEvents();
prev_frame = current_frame;
input.updateCursor() catch {};
ztracy.FrameMark();
}
}
fn gameKeyInputFn(event: Input.KeyEvent) void {
if (event.action == .press) {
switch (event.key) {
Input.Key.w => {
call_translate += 1;
camera_translate.data[2] -= 1;
},
Input.Key.s => {
call_translate += 1;
camera_translate.data[2] += 1;
},
Input.Key.d => {
call_translate += 1;
camera_translate.data[0] += 1;
},
Input.Key.a => {
call_translate += 1;
camera_translate.data[0] -= 1;
},
Input.Key.left_control => {
call_translate += 1;
camera_translate.data[1] += 1;
},
Input.Key.left_shift => activate_sprint = true,
Input.Key.space => {
call_translate += 1;
camera_translate.data[1] -= 1;
},
Input.Key.escape => {
input.setCursorPosCallback(menuCursorPosInputFn);
input.setKeyCallback(menuKeyInputFn);
input.setInputModeCursor(.normal);
input.setImguiWantInput(true);
},
else => {},
}
} else if (event.action == .release) {
switch (event.key) {
Input.Key.w => {
call_translate -= 1;
camera_translate.data[2] += 1;
},
Input.Key.s => {
call_translate -= 1;
camera_translate.data[2] -= 1;
},
Input.Key.d => {
call_translate -= 1;
camera_translate.data[0] -= 1;
},
Input.Key.a => {
call_translate -= 1;
camera_translate.data[0] += 1;
},
Input.Key.left_control => {
call_translate -= 1;
camera_translate.data[1] -= 1;
},
Input.Key.left_shift => {
activate_sprint = false;
},
Input.Key.space => {
call_translate -= 1;
camera_translate.data[1] += 1;
},
else => {},
}
}
}
fn menuKeyInputFn(event: Input.KeyEvent) void {
if (event.action == .press) {
switch (event.key) {
Input.Key.escape => {
input.setCursorPosCallback(gameCursorPosInputFn);
input.setKeyCallback(gameKeyInputFn);
input.setImguiWantInput(false);
input.setInputModeCursor(.disabled);
// ignore first 5 frames of input after
mouse_ignore_frames = 5;
},
else => {},
}
}
}
fn mouseBtnInputFn(event: Input.MouseButtonEvent) void {
if (event.action == Input.Action.press) {
if (event.button == Input.MouseButton.left) {} else if (event.button == Input.MouseButton.right) {}
}
if (event.action == Input.Action.release) {
if (event.button == Input.MouseButton.left) {} else if (event.button == Input.MouseButton.right) {}
}
}
fn gameCursorPosInputFn(event: Input.CursorPosEvent) void {
const State = struct {
var prev_event: ?Input.CursorPosEvent = null;
};
defer State.prev_event = event;
if (mouse_ignore_frames == 0) {
// let prev_event be defined before processing Input
if (State.prev_event) |p_event| {
mouse_delta.data[0] += @floatCast(f32, event.x - p_event.x);
mouse_delta.data[1] += @floatCast(f32, event.y - p_event.y);
}
call_yaw = call_yaw or mouse_delta.x() < -0.00001 or mouse_delta.x() > 0.00001;
call_pitch = call_pitch or mouse_delta.y() < -0.00001 or mouse_delta.y() > 0.00001;
}
mouse_ignore_frames = if (mouse_ignore_frames > 0) mouse_ignore_frames - 1 else 0;
}
fn menuCursorPosInputFn(event: Input.CursorPosEvent) void {
_ = event;
}
|
0 | repos/zig_vulkan | repos/zig_vulkan/src/test.zig | test {
_ = @import("modules/test.zig");
}
|
0 | repos/zig_vulkan/src | repos/zig_vulkan/src/modules/utils.zig | /// conveiance functions for the codebase
const std = @import("std");
const Allocator = std.mem.Allocator;
const ArrayList = std.ArrayList;
// TODO: don't use arraylist, just allocate slice with allocator
/// caller must deinit returned memory
pub fn readFile(allocator: Allocator, absolute_path: []const u8) !ArrayList(u8) {
const file = try std.fs.openFileAbsolute(absolute_path, .{ .mode = .read_only });
defer file.close();
var reader = file.reader();
const file_size = (try reader.context.stat()).size;
var buffer = try ArrayList(u8).initCapacity(allocator, file_size);
// set buffer len so that reader is aware of usable memory
buffer.items.len = file_size;
const read = try reader.readAll(buffer.items);
if (read != file_size) {
return error.DidNotReadWholeFile;
}
return buffer;
}
|
0 | repos/zig_vulkan/src | repos/zig_vulkan/src/modules/VoxelRT.zig | const std = @import("std");
const Allocator = std.mem.Allocator;
const tracy = @import("ztracy");
const za = @import("zalgebra");
const Vec2 = @Vector(2, f32);
const render = @import("../modules/render.zig");
const Context = render.Context;
const Pipeline = @import("voxel_rt/Pipeline.zig");
pub const Camera = @import("voxel_rt/Camera.zig");
pub const Sun = @import("voxel_rt/Sun.zig");
pub const BrickGrid = @import("voxel_rt/brick/Grid.zig");
pub const GridState = @import("voxel_rt/brick/State.zig");
pub const Benchmark = @import("voxel_rt/Benchmark.zig");
pub const gpu_types = @import("voxel_rt/gpu_types.zig");
pub const terrain = @import("voxel_rt/terrain/terrain.zig");
pub const vox = @import("voxel_rt/vox/loader.zig");
pub const Config = struct {
internal_resolution_width: u32 = 1280,
internal_resolution_height: u32 = 720,
pipeline: Pipeline.Config = .{},
camera: Camera.Config = .{},
sun: Sun.Config = .{},
};
const VoxelRT = @This();
camera: *Camera,
sun: *Sun,
brick_grid: *BrickGrid,
pipeline: Pipeline,
/// init VoxelRT, api takes ownership of the brick_grid
pub fn init(allocator: Allocator, ctx: Context, brick_grid: *BrickGrid, config: Config) !VoxelRT {
const camera = try allocator.create(Camera);
errdefer allocator.destroy(camera);
camera.* = Camera.init(75, config.internal_resolution_width, config.internal_resolution_height, config.camera);
const sun = try allocator.create(Sun);
errdefer allocator.destroy(sun);
sun.* = Sun.init(config.sun);
var pipeline = try Pipeline.init(
ctx,
allocator,
.{
.width = config.internal_resolution_width,
.height = config.internal_resolution_height,
},
brick_grid.state.*,
camera,
sun,
config.pipeline,
);
errdefer pipeline.deinit(ctx);
try pipeline.transferGridState(ctx, brick_grid.state.*);
const metals = [_]gpu_types.Metal{.{
.fuzz = 0.45,
}};
try pipeline.transferMetals(ctx, 0, metals[0..]);
const dielectrics = [_]gpu_types.Dielectric{
.{
.internal_reflection = 1.333, // water
},
.{
.internal_reflection = 1.52, // glass
},
};
try pipeline.transferDielectrics(ctx, 0, dielectrics[0..]);
return VoxelRT{
.camera = camera,
.sun = sun,
.brick_grid = brick_grid,
.pipeline = pipeline,
};
}
pub fn createBenchmark(self: *VoxelRT) Benchmark {
return Benchmark.init(self.camera, self.brick_grid.state.*, self.sun.device_data.enabled > 0);
}
pub fn draw(self: *VoxelRT, ctx: Context, delta_time: f32) !void {
try self.pipeline.draw(ctx, delta_time);
}
pub fn updateSun(self: *VoxelRT, delta_time: f32) void {
self.sun.update(delta_time);
}
/// push the materials to GPU
pub fn pushMaterials(self: *VoxelRT, ctx: Context, materials: []const gpu_types.Material) !void {
try self.pipeline.transferMaterials(ctx, 0, materials);
}
/// push the albedo to GPU
pub fn pushAlbedo(self: *VoxelRT, ctx: Context, albedos: []const gpu_types.Albedo) !void {
try self.pipeline.transferAlbedos(ctx, 0, albedos);
}
/// Push all terrain data to GPU
pub fn debugUpdateTerrain(self: *VoxelRT, ctx: Context) !void {
try self.pipeline.transferHigherOrderGrid(ctx, 0, self.brick_grid.state.higher_order_grid);
try self.pipeline.transferBrickStatuses(ctx, 0, self.brick_grid.state.brick_statuses);
try self.pipeline.transferBrickIndices(ctx, 0, self.brick_grid.state.brick_indices);
try self.pipeline.transferBricks(ctx, 0, self.brick_grid.state.bricks);
try self.pipeline.transferMaterialIndices(ctx, 0, self.brick_grid.state.material_indices);
}
/// update grid device data based on changes
pub fn updateGridDelta(self: *VoxelRT, ctx: Context) !void {
{
const transfer_zone = tracy.ZoneN(@src(), "higher order transfer");
defer transfer_zone.End();
var delta = self.brick_grid.state.higher_order_grid_delta;
delta.mutex.lock();
defer delta.mutex.unlock();
if (delta.state == .active) {
try self.pipeline.transferHigherOrderGrid(ctx, delta.from, self.brick_grid.state.higher_order_grid[delta.from..delta.to]);
delta.resetDelta();
}
}
{
const transfer_zone = tracy.ZoneN(@src(), "grid type transfer");
defer transfer_zone.End();
for (self.brick_grid.state.brick_statuses_deltas) |*delta| {
delta.mutex.lock();
defer delta.mutex.unlock();
if (delta.state == .active) {
try self.pipeline.transferBrickStatuses(ctx, delta.from, self.brick_grid.state.brick_statuses[delta.from..delta.to]);
delta.resetDelta();
}
}
}
{
const transfer_zone = tracy.ZoneN(@src(), "grid index transfer");
defer transfer_zone.End();
for (self.brick_grid.state.brick_indices_deltas) |*delta| {
delta.mutex.lock();
defer delta.mutex.unlock();
if (delta.state == .active) {
try self.pipeline.transferBrickIndices(ctx, delta.from, self.brick_grid.state.brick_indices[delta.from..delta.to]);
delta.resetDelta();
}
}
}
{
const transfer_zone = tracy.ZoneN(@src(), "bricks transfer");
defer transfer_zone.End();
const delta = &self.brick_grid.state.bricks_delta;
delta.mutex.lock();
defer delta.mutex.unlock();
if (delta.state == .active) {
try self.pipeline.transferBricks(ctx, delta.from, self.brick_grid.state.bricks[delta.from..delta.to]);
delta.resetDelta();
}
}
{
const transfer_zone = tracy.ZoneN(@src(), "material indices transfer");
defer transfer_zone.End();
for (self.brick_grid.state.material_indices_deltas) |*delta| {
delta.mutex.lock();
defer delta.mutex.unlock();
if (delta.state == .active) {
try self.pipeline.transferMaterialIndices(ctx, delta.from, self.brick_grid.state.material_indices[delta.from..delta.to]);
delta.resetDelta();
}
}
}
}
pub fn deinit(self: VoxelRT, allocator: Allocator, ctx: Context) void {
allocator.destroy(self.camera);
allocator.destroy(self.sun);
self.pipeline.deinit(ctx);
}
|
0 | repos/zig_vulkan/src | repos/zig_vulkan/src/modules/Input.zig | const std = @import("std");
const Allocator = std.mem.Allocator;
const glfw = @import("glfw");
const zgui = @import("zgui");
pub const WindowHandle = glfw.Window.Handle;
pub const Key = glfw.Key;
pub const Action = glfw.Action;
pub const Mods = glfw.Mods;
pub const MouseButton = glfw.mouse_button.MouseButton;
pub const InputModeCursor = glfw.Window.InputModeCursor;
// TODO: use callbacks for easier key binding
// const int scancode = glfwGetKeyScancode(GLFW_KEY_X);
// set_key_mapping(scancode, swap_weapons);
// TODO: imgui should be optional
// TODO: thread safety
pub const KeyEvent = struct {
key: Key,
action: Action,
mods: Mods,
};
pub const MouseButtonEvent = struct {
button: MouseButton,
action: Action,
mods: Mods,
};
pub const CursorPosEvent = struct {
x: f64,
y: f64,
};
pub const KeyHandleFn = *const fn (KeyEvent) void;
pub const MouseButtonHandleFn = *const fn (MouseButtonEvent) void;
pub const CursorPosHandleFn = *const fn (CursorPosEvent) void;
const WindowContext = struct {
allocator: Allocator,
imgui_want_input: bool,
key_handle_fn: KeyHandleFn,
mouse_btn_handle_fn: MouseButtonHandleFn,
cursor_pos_handle_fn: CursorPosHandleFn,
};
const ImguiContext = struct {
pointing_hand: glfw.Cursor,
arrow: glfw.Cursor,
ibeam: glfw.Cursor,
crosshair: glfw.Cursor,
resize_ns: glfw.Cursor,
resize_ew: glfw.Cursor,
resize_nesw: glfw.Cursor,
resize_nwse: glfw.Cursor,
not_allowed: glfw.Cursor,
};
const Input = @This();
window: glfw.Window,
window_context: *WindowContext,
imgui_context: ImguiContext,
/// !This will set the glfw window user context!
/// create a input module.
pub fn init(
allocator: Allocator,
input_window: glfw.Window,
input_handle_fn: KeyHandleFn,
input_mouse_btn_handle_fn: MouseButtonHandleFn,
input_cursor_pos_handle_fn: CursorPosHandleFn,
) !Input {
const window = input_window;
const window_context = try allocator.create(WindowContext);
window_context.* = .{
.allocator = allocator,
.imgui_want_input = false,
.key_handle_fn = input_handle_fn,
.mouse_btn_handle_fn = input_mouse_btn_handle_fn,
.cursor_pos_handle_fn = input_cursor_pos_handle_fn,
};
window.setInputMode(glfw.Window.InputMode.cursor, InputModeCursor.normal);
_ = window.setKeyCallback(keyCallback);
_ = window.setCharCallback(charCallback);
_ = window.setMouseButtonCallback(mouseBtnCallback);
_ = window.setCursorPosCallback(cursorPosCallback);
_ = window.setScrollCallback(scrollCallback);
window.setUserPointer(@ptrCast(?*anyopaque, window_context));
const imgui_context = try linkImguiCodes();
return Input{
.window = window,
.window_context = window_context,
.imgui_context = imgui_context,
};
}
/// kill input module
pub fn deinit(self: Input, allocator: Allocator) void {
self.window.setUserPointer(null);
allocator.destroy(self.window_context);
// unregister callback functions
_ = self.window.setKeyCallback(null);
_ = self.window.setCharCallback(null);
_ = self.window.setMouseButtonCallback(null);
_ = self.window.setCursorPosCallback(null);
_ = self.window.setScrollCallback(null);
}
pub fn setImguiWantInput(self: Input, want_input: bool) void {
self.window_context.imgui_want_input = want_input;
}
pub fn setInputModeCursor(self: Input, mode: InputModeCursor) void {
self.window.setInputModeCursor(mode);
}
pub fn setCursorPosCallback(self: Input, input_cursor_pos_handle_fn: CursorPosHandleFn) void {
self.window_context.cursor_pos_handle_fn = input_cursor_pos_handle_fn;
}
pub fn setKeyCallback(self: Input, input_key_handle_fn: KeyHandleFn) void {
self.window_context.key_handle_fn = input_key_handle_fn;
}
/// update cursor based on imgui
pub fn updateCursor(self: *Input) !void {
const context = if (self.window.getUserPointer(WindowContext)) |some| some else return;
if (context.imgui_want_input == false) {
return;
}
self.window.setInputModeCursor(.normal);
switch (zgui.getMouseCursor()) {
.none => self.window.setInputModeCursor(.hidden),
.arrow => self.window.setCursor(self.imgui_context.arrow),
.text_input => self.window.setCursor(self.imgui_context.ibeam),
.resize_all => self.window.setCursor(self.imgui_context.crosshair),
.resize_ns => self.window.setCursor(self.imgui_context.resize_ns),
.resize_ew => self.window.setCursor(self.imgui_context.resize_ew),
.resize_nesw => self.window.setCursor(self.imgui_context.resize_nesw),
.resize_nwse => self.window.setCursor(self.imgui_context.resize_nwse),
.hand => self.window.setCursor(self.imgui_context.pointing_hand),
.not_allowed => self.window.setCursor(self.imgui_context.not_allowed),
.count => self.window.setCursor(self.imgui_context.ibeam),
}
}
fn keyCallback(window: glfw.Window, key: Key, scan_code: i32, action: Action, mods: Mods) void {
_ = scan_code;
var owned_mods = mods;
var parsed_mods = @ptrCast(*Mods, &owned_mods);
const event = KeyEvent{
.key = key,
.action = action,
.mods = parsed_mods.*,
};
const context = if (window.getUserPointer(WindowContext)) |some| some else return;
context.key_handle_fn(event);
if (context.imgui_want_input) {
zgui.io.addKeyEvent(zgui.Key.mod_shift, mods.shift);
zgui.io.addKeyEvent(zgui.Key.mod_ctrl, mods.control);
zgui.io.addKeyEvent(zgui.Key.mod_alt, mods.alt);
zgui.io.addKeyEvent(zgui.Key.mod_super, mods.super);
// zgui.addKeyEvent(zgui.Key.mod_caps_lock, mod.caps_lock);
// zgui.addKeyEvent(zgui.Key.mod_num_lock, mod.num_lock);
zgui.io.addKeyEvent(mapGlfwKeyToImgui(key), action == .press);
}
}
fn charCallback(window: glfw.Window, codepoint: u21) void {
const context = if (window.getUserPointer(WindowContext)) |some| some else return;
if (context.imgui_want_input) {
var buffer: [8]u8 = undefined;
const len = std.unicode.utf8Encode(codepoint, buffer[0..]) catch return;
const cstr = buffer[0 .. len + 1];
cstr[len] = 0; // null terminator
zgui.io.addInputCharactersUTF8(@ptrCast([*:0]const u8, cstr.ptr));
}
}
fn mouseBtnCallback(window: glfw.Window, button: MouseButton, action: Action, mods: Mods) void {
var owned_mods = mods;
var parsed_mods = @ptrCast(*Mods, &owned_mods);
const event = MouseButtonEvent{
.button = button,
.action = action,
.mods = parsed_mods.*,
};
const context = if (window.getUserPointer(WindowContext)) |some| some else return;
context.mouse_btn_handle_fn(event);
if (context.imgui_want_input) {
if (switch (button) {
.left => zgui.MouseButton.left,
.right => zgui.MouseButton.right,
.middle => zgui.MouseButton.middle,
.four, .five, .six, .seven, .eight => null,
}) |zgui_button| {
// apply modifiers
zgui.io.addKeyEvent(zgui.Key.mod_shift, mods.shift);
zgui.io.addKeyEvent(zgui.Key.mod_ctrl, mods.control);
zgui.io.addKeyEvent(zgui.Key.mod_alt, mods.alt);
zgui.io.addKeyEvent(zgui.Key.mod_super, mods.super);
zgui.io.addMouseButtonEvent(zgui_button, action == .press);
}
}
}
fn cursorPosCallback(window: glfw.Window, x_pos: f64, y_pos: f64) void {
const event = CursorPosEvent{
.x = x_pos,
.y = y_pos,
};
const context = if (window.getUserPointer(WindowContext)) |some| some else return;
context.cursor_pos_handle_fn(event);
if (context.imgui_want_input) {
zgui.io.addMousePositionEvent(@floatCast(f32, x_pos), @floatCast(f32, y_pos));
}
}
fn scrollCallback(window: glfw.Window, xoffset: f64, yoffset: f64) void {
const context = if (window.getUserPointer(WindowContext)) |some| some else return;
if (context.imgui_want_input) {
zgui.io.addMouseWheelEvent(@floatCast(f32, xoffset), @floatCast(f32, yoffset));
}
}
/// link imgui and glfw codes
fn linkImguiCodes() !ImguiContext {
var self = ImguiContext{
.pointing_hand = undefined,
.arrow = undefined,
.ibeam = undefined,
.crosshair = undefined,
.resize_ns = undefined,
.resize_ew = undefined,
.resize_nesw = undefined,
.resize_nwse = undefined,
.not_allowed = undefined,
};
self.pointing_hand = glfw.Cursor.createStandard(.pointing_hand) orelse return error.CreateCursorFailed;
errdefer self.pointing_hand.destroy();
self.arrow = glfw.Cursor.createStandard(.arrow) orelse return error.CreateCursorFailed;
errdefer self.arrow.destroy();
self.ibeam = glfw.Cursor.createStandard(.ibeam) orelse return error.CreateCursorFailed;
errdefer self.ibeam.destroy();
self.crosshair = glfw.Cursor.createStandard(.crosshair) orelse return error.CreateCursorFailed;
errdefer self.crosshair.destroy();
self.resize_ns = glfw.Cursor.createStandard(.resize_ns) orelse return error.CreateCursorFailed;
errdefer self.resize_ns.destroy();
self.resize_ew = glfw.Cursor.createStandard(.resize_ew) orelse return error.CreateCursorFailed;
errdefer self.resize_ew.destroy();
self.resize_nesw = glfw.Cursor.createStandard(.resize_nesw) orelse return error.CreateCursorFailed;
errdefer self.resize_nesw.destroy();
self.resize_nwse = glfw.Cursor.createStandard(.resize_nwse) orelse return error.CreateCursorFailed;
errdefer self.resize_nwse.destroy();
self.not_allowed = glfw.Cursor.createStandard(.not_allowed) orelse return error.CreateCursorFailed;
errdefer self.not_allowed.destroy();
return self;
}
fn getClipboardTextFn(ctx: ?*anyopaque) callconv(.C) [*c]const u8 {
_ = ctx;
const clipboard_string = glfw.getClipboardString() catch blk: {
break :blk "";
};
return clipboard_string;
}
fn setClipboardTextFn(ctx: ?*anyopaque, text: [*c]const u8) callconv(.C) void {
_ = ctx;
glfw.setClipboardString(text) catch {};
}
inline fn mapGlfwKeyToImgui(key: glfw.Key) zgui.Key {
return switch (key) {
.unknown => zgui.Key.none,
.space => zgui.Key.space,
.apostrophe => zgui.Key.apostrophe,
.comma => zgui.Key.comma,
.minus => zgui.Key.minus,
.period => zgui.Key.period,
.slash => zgui.Key.slash,
.zero => zgui.Key.zero,
.one => zgui.Key.one,
.two => zgui.Key.two,
.three => zgui.Key.three,
.four => zgui.Key.four,
.five => zgui.Key.five,
.six => zgui.Key.six,
.seven => zgui.Key.seven,
.eight => zgui.Key.eight,
.nine => zgui.Key.nine,
.semicolon => zgui.Key.semicolon,
.equal => zgui.Key.equal,
.a => zgui.Key.a,
.b => zgui.Key.b,
.c => zgui.Key.c,
.d => zgui.Key.d,
.e => zgui.Key.e,
.f => zgui.Key.f,
.g => zgui.Key.g,
.h => zgui.Key.h,
.i => zgui.Key.i,
.j => zgui.Key.j,
.k => zgui.Key.k,
.l => zgui.Key.l,
.m => zgui.Key.m,
.n => zgui.Key.n,
.o => zgui.Key.o,
.p => zgui.Key.p,
.q => zgui.Key.q,
.r => zgui.Key.r,
.s => zgui.Key.s,
.t => zgui.Key.t,
.u => zgui.Key.u,
.v => zgui.Key.v,
.w => zgui.Key.w,
.x => zgui.Key.x,
.y => zgui.Key.y,
.z => zgui.Key.z,
.left_bracket => zgui.Key.left_bracket,
.backslash => zgui.Key.back_slash,
.right_bracket => zgui.Key.right_bracket,
.grave_accent => zgui.Key.grave_accent,
.world_1 => zgui.Key.none, // ????
.world_2 => zgui.Key.none, // ????
.escape => zgui.Key.escape,
.enter => zgui.Key.enter,
.tab => zgui.Key.tab,
.backspace => zgui.Key.back_space,
.insert => zgui.Key.insert,
.delete => zgui.Key.delete,
.right => zgui.Key.right_arrow,
.left => zgui.Key.left_arrow,
.down => zgui.Key.down_arrow,
.up => zgui.Key.up_arrow,
.page_up => zgui.Key.page_up,
.page_down => zgui.Key.page_down,
.home => zgui.Key.home,
.end => zgui.Key.end,
.caps_lock => zgui.Key.caps_lock,
.scroll_lock => zgui.Key.scroll_lock,
.num_lock => zgui.Key.num_lock,
.print_screen => zgui.Key.print_screen,
.pause => zgui.Key.pause,
.F1 => zgui.Key.f1,
.F2 => zgui.Key.f2,
.F3 => zgui.Key.f3,
.F4 => zgui.Key.f4,
.F5 => zgui.Key.f5,
.F6 => zgui.Key.f6,
.F7 => zgui.Key.f7,
.F8 => zgui.Key.f8,
.F9 => zgui.Key.f9,
.F10 => zgui.Key.f10,
.F11 => zgui.Key.f11,
.F12 => zgui.Key.f12,
.F13,
.F14,
.F15,
.F16,
.F17,
.F18,
.F19,
.F20,
.F21,
.F22,
.F23,
.F24,
.F25,
=> zgui.Key.none,
.kp_0 => zgui.Key.keypad_0,
.kp_1 => zgui.Key.keypad_1,
.kp_2 => zgui.Key.keypad_2,
.kp_3 => zgui.Key.keypad_3,
.kp_4 => zgui.Key.keypad_4,
.kp_5 => zgui.Key.keypad_5,
.kp_6 => zgui.Key.keypad_6,
.kp_7 => zgui.Key.keypad_7,
.kp_8 => zgui.Key.keypad_8,
.kp_9 => zgui.Key.keypad_9,
.kp_decimal => zgui.Key.keypad_decimal,
.kp_divide => zgui.Key.keypad_divide,
.kp_multiply => zgui.Key.keypad_multiply,
.kp_subtract => zgui.Key.keypad_subtract,
.kp_add => zgui.Key.keypad_add,
.kp_enter => zgui.Key.keypad_enter,
.kp_equal => zgui.Key.keypad_equal,
.left_shift => zgui.Key.left_shift,
.left_control => zgui.Key.left_ctrl,
.left_alt => zgui.Key.left_alt,
.left_super => zgui.Key.left_super,
.right_shift => zgui.Key.right_shift,
.right_control => zgui.Key.right_ctrl,
.right_alt => zgui.Key.right_alt,
.right_super => zgui.Key.right_super,
.menu => zgui.Key.menu,
};
}
|
0 | repos/zig_vulkan/src | repos/zig_vulkan/src/modules/test.zig | test {
_ = @import("voxel_rt/test.zig");
}
|
0 | repos/zig_vulkan/src | repos/zig_vulkan/src/modules/render.zig | /// library with utility wrappers around vulkan functions
pub const Context = @import("render/Context.zig");
/// Wrapper for vk buffer and memory to simplify handling of these in conjunction
pub const GpuBufferMemory = @import("render/GpuBufferMemory.zig");
/// Wrapper a collection GpuBufferMemory used to stage transfers to device local memory
pub const StagingRamp = @import("render/StagingRamp.zig");
/// Texture abstraction
pub const Texture = @import("render/Texture.zig");
/// helper methods for handling of pipelines
pub const consts = @import("render/consts.zig");
pub const dispatch = @import("render/dispatch.zig");
pub const memory = @import("render/memory.zig");
pub const physical_device = @import("render/physical_device.zig");
pub const pipeline = @import("render/pipeline.zig");
pub const swapchain = @import("render/swapchain.zig");
pub const validation_layer = @import("render/validation_layer.zig");
pub const vk_utils = @import("render/vk_utils.zig");
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/ImguiGui.zig | const std = @import("std");
const zgui = @import("zgui");
const vk = @import("vulkan");
const render = @import("../render.zig");
const Context = render.Context;
const Camera = @import("Camera.zig");
const Sun = @import("Sun.zig");
const BrickState = @import("brick/State.zig");
const Pipeline = @import("Pipeline.zig");
const GraphicsPipeline = @import("GraphicsPipeline.zig");
const Benchmark = @import("Benchmark.zig");
pub const StateBinding = struct {
camera_ptr: *Camera,
/// used in benchmark report
grid_state: BrickState,
sun_ptr: *Sun,
gfx_pipeline_shader_constants: *GraphicsPipeline.PushConstant,
};
pub const Config = struct {
camera_window_active: bool = true,
metrics_window_active: bool = true,
post_process_window_active: bool = true,
sun_window_active: bool = true,
update_frame_timings: bool = true,
};
const MetricState = struct {
update_frame_timings: bool,
frame_times: [128]f32,
min_frame_time: f32,
max_frame_time: f32,
};
// build voxel_rt gui for the ImguiPipeline and handle state propagation
const ImguiGui = @This();
state_binding: StateBinding,
camera_window_active: bool,
metrics_window_active: bool,
post_process_window_active: bool,
sun_window_active: bool,
device_properties: vk.PhysicalDeviceProperties,
metrics_state: MetricState,
benchmark: ?Benchmark = null,
pub fn init(ctx: Context, gui_width: f32, gui_height: f32, state_binding: StateBinding, config: Config) ImguiGui {
// Color scheme
const StyleCol = zgui.StyleCol;
const style = zgui.getStyle();
style.setColor(StyleCol.title_bg, [4]f32{ 0.1, 0.1, 0.1, 0.85 });
style.setColor(StyleCol.title_bg_active, [4]f32{ 0.15, 0.15, 0.15, 0.9 });
style.setColor(StyleCol.menu_bar_bg, [4]f32{ 0.1, 0.1, 0.1, 0.8 });
style.setColor(StyleCol.header, [4]f32{ 0.1, 0.1, 0.1, 0.8 });
style.setColor(StyleCol.check_mark, [4]f32{ 0, 1, 0, 1 });
// Dimensions
zgui.io.setDisplaySize(gui_width, gui_height);
zgui.io.setDisplayFramebufferScale(1.0, 1.0);
return ImguiGui{
.state_binding = state_binding,
.camera_window_active = config.camera_window_active,
.metrics_window_active = config.metrics_window_active,
.post_process_window_active = config.post_process_window_active,
.sun_window_active = config.sun_window_active,
.device_properties = ctx.getPhysicalDeviceProperties(),
.metrics_state = .{
.update_frame_timings = config.update_frame_timings,
.frame_times = [_]f32{0} ** 128,
.min_frame_time = std.math.f32_max,
.max_frame_time = std.math.f32_min,
},
};
}
/// handle window resizing
pub fn handleRescale(self: ImguiGui, gui_width: f32, gui_height: f32) void {
_ = self;
zgui.io.setDisplaySize(gui_width, gui_height);
}
// Starts a new imGui frame and sets up windows and ui elements
pub fn newFrame(self: *ImguiGui, ctx: Context, pipeline: *Pipeline, update_metrics: bool, dt: f32) void {
_ = ctx;
zgui.newFrame();
const style = zgui.getStyle();
const rounding = style.window_rounding;
style.window_rounding = 0; // no rounding for top menu
zgui.setNextWindowSize(
.{
.w = @intToFloat(f32, pipeline.swapchain.extent.width),
.h = 0,
.cond = .always,
},
);
zgui.setNextWindowPos(.{ .x = 0, .y = 0, .cond = .always });
_ = zgui.begin("Main menu", .{ .flags = .{
.menu_bar = true,
.no_move = true,
.no_resize = true,
.no_title_bar = true,
.no_scrollbar = true,
.no_scroll_with_mouse = true,
.no_collapse = true,
.no_background = true,
} });
style.window_rounding = rounding;
blk: {
if (zgui.beginMenuBar() == false) break :blk;
defer zgui.endMenuBar();
if (zgui.beginMenu("Windows", true) == false) break :blk;
defer zgui.endMenu();
if (zgui.menuItem("Camera", .{ .selected = self.camera_window_active, .enabled = true })) {
self.camera_window_active = !self.camera_window_active;
}
if (zgui.menuItem("Metrics", .{ .selected = self.metrics_window_active, .enabled = true })) {
self.metrics_window_active = !self.metrics_window_active;
}
if (zgui.menuItem("Post process", .{ .selected = self.post_process_window_active, .enabled = true })) {
self.post_process_window_active = !self.post_process_window_active;
}
if (zgui.menuItem("Sun", .{ .selected = self.sun_window_active, .enabled = true })) {
self.sun_window_active = !self.sun_window_active;
}
}
zgui.end();
blk: {
if (!self.metrics_state.update_frame_timings or !update_metrics) {
break :blk;
}
std.mem.rotate(f32, self.metrics_state.frame_times[0..], 1);
const frame_time = dt * std.time.ms_per_s;
self.metrics_state.frame_times[self.metrics_state.frame_times.len - 1] = frame_time;
self.metrics_state.min_frame_time = std.math.min(self.metrics_state.min_frame_time, frame_time);
self.metrics_state.max_frame_time = std.math.max(self.metrics_state.max_frame_time, frame_time);
}
self.benchmark = blk: {
if (self.benchmark) |*b| {
if (b.update(dt)) {
self.state_binding.camera_ptr.reset();
b.printReport(self.device_properties.device_name[0..]);
break :blk null;
}
}
break :blk self.benchmark;
};
self.drawCameraWindowIfEnabled();
self.drawMetricsWindowIfEnabled();
self.drawPostProcessWindowIfEnabled();
self.drawPostSunWindowIfEnabled();
// imgui.igSetNextWindowPos(.{ .x = 650, .y = 20 }, imgui.ImGuiCond_FirstUseEver, .{ .x = 0, .y = 0 });
// imgui.igShowDemoWindow(null);
zgui.render();
}
inline fn drawCameraWindowIfEnabled(self: *ImguiGui) void {
if (self.camera_window_active == false) return;
zgui.setNextWindowSize(.{
.w = 400,
.h = 500,
.cond = .first_use_ever,
});
const camera_open = zgui.begin("Camera", .{ .popen = &self.camera_window_active });
defer zgui.end();
if (camera_open == false) return;
_ = zgui.sliderInt("max bounces", .{
.v = &self.state_binding.camera_ptr.d_camera.max_bounce,
.min = 1,
.max = 32,
});
imguiToolTip("how many times a ray is allowed to bounce before terminating", .{});
_ = zgui.sliderInt("samples per pixel", .{
.v = &self.state_binding.camera_ptr.d_camera.samples_per_pixel,
.min = 1,
.max = 32,
});
imguiToolTip("how many rays per pixel", .{});
_ = zgui.inputFloat("move speed", .{ .v = &self.state_binding.camera_ptr.normal_speed });
_ = zgui.inputFloat("turn rate", .{ .v = &self.state_binding.camera_ptr.turn_rate });
var camera_origin: [3]f32 = self.state_binding.camera_ptr.d_camera.origin;
const camera_origin_changed = zgui.inputFloat3("position", .{ .v = &camera_origin });
if (camera_origin_changed) {
self.state_binding.camera_ptr.setOrigin(camera_origin);
}
}
inline fn drawMetricsWindowIfEnabled(self: *ImguiGui) void {
if (self.metrics_window_active == false) return;
zgui.setNextWindowSize(.{
.w = 400,
.h = 500,
.cond = .first_use_ever,
});
const metrics_open = zgui.begin("Metrics", .{ .popen = &self.metrics_window_active });
defer zgui.end();
if (metrics_open == false) return;
const zero_index = std.mem.indexOf(u8, &self.device_properties.device_name, &[_]u8{0});
zgui.textUnformatted(self.device_properties.device_name[0..zero_index.?]);
if (zgui.plot.beginPlot("Frame times", .{})) {
defer zgui.plot.endPlot();
// x axis
zgui.plot.setupAxis(.x1, .{ .label = "frame" });
zgui.plot.setupAxisLimits(.x1, .{ .min = 0, .max = self.metrics_state.frame_times.len });
// y axis
zgui.plot.setupAxis(.y1, .{ .label = "time (ms)" });
zgui.plot.setupAxisLimits(.y1, .{ .min = 0, .max = @floatCast(f64, 30) });
zgui.plot.setupFinish();
zgui.plot.plotLineValues("Frame times", f32, .{
.v = &self.metrics_state.frame_times,
});
}
zgui.text("Recent frame time: {d:>8.3}", .{self.metrics_state.frame_times[self.metrics_state.frame_times.len - 1]});
zgui.text("Minimum frame time: {d:>8.3}", .{self.metrics_state.min_frame_time});
zgui.text("Maximum frame time: {d:>8.3}", .{self.metrics_state.max_frame_time});
if (zgui.collapsingHeader("Benchmark", .{})) {
const benchmark_active = self.benchmark != null;
if (benchmark_active) {
// imgui.igPushItemFlag(ImGuiButtonFlags_Disabled, true);
zgui.pushStyleVar1f(.{ .idx = .alpha, .v = zgui.getStyle().alpha * 0.5 });
}
if (zgui.button("Start benchmark", .{ .w = 200, .h = 80 })) {
if (benchmark_active == false) {
// reset sun to avoid any difference in lighting affecting performance
if (self.state_binding.sun_ptr.device_data.enabled > 0 and self.state_binding.sun_ptr.animate) {
self.state_binding.sun_ptr.* = Sun.init(.{});
}
self.benchmark = Benchmark.init(
self.state_binding.camera_ptr,
self.state_binding.grid_state,
(self.state_binding.sun_ptr.device_data.enabled > 0),
);
}
}
imguiToolTip("benchmark will control camera and create a report to stdout", .{});
if (benchmark_active) {
// imgui.igPopItemFlag();
zgui.popStyleVar(.{});
}
}
}
inline fn drawPostProcessWindowIfEnabled(self: *ImguiGui) void {
if (self.post_process_window_active == false) return;
zgui.setNextWindowSize(.{
.w = 400,
.h = 500,
.cond = .first_use_ever,
});
const post_window_open = zgui.begin("Post process", .{ .popen = &self.post_process_window_active });
defer zgui.end();
if (post_window_open == false) return;
_ = zgui.inputInt("Samples", .{ .v = &self.state_binding.gfx_pipeline_shader_constants.samples, .step_fast = 2 });
imguiToolTip("Higher sample count result in less noise\nThis comes at the cost of performance", .{});
_ = zgui.sliderFloat("Distribution bias", .{
.v = &self.state_binding.gfx_pipeline_shader_constants.distribution_bias,
.min = 0,
.max = 1,
});
_ = zgui.sliderFloat("Pixel Multiplier", .{
.v = &self.state_binding.gfx_pipeline_shader_constants.pixel_multiplier,
.min = 1,
.max = 3,
});
imguiToolTip("should be kept low", .{});
_ = zgui.sliderFloat("Inverse Hue Tolerance", .{
.v = &self.state_binding.gfx_pipeline_shader_constants.inverse_hue_tolerance,
.min = 2,
.max = 30,
});
}
inline fn drawPostSunWindowIfEnabled(self: *ImguiGui) void {
if (self.sun_window_active == false) return;
zgui.setNextWindowSize(.{
.w = 400,
.h = 500,
.cond = .first_use_ever,
});
const sun_open = zgui.begin("Sun", .{ .popen = &self.sun_window_active });
defer zgui.end();
if (sun_open == false) return;
var enabled = (self.state_binding.sun_ptr.device_data.enabled > 0);
_ = zgui.checkbox("enabled", .{ .v = &enabled });
self.state_binding.sun_ptr.device_data.enabled = if (enabled) 1 else 0;
_ = zgui.dragFloat3("position", .{
.v = &self.state_binding.sun_ptr.device_data.position,
.speed = 1,
.min = -10000,
.max = 10000,
});
_ = zgui.colorEdit3("color", .{ .col = &self.state_binding.sun_ptr.device_data.color });
_ = zgui.dragFloat("radius", .{ .v = &self.state_binding.sun_ptr.device_data.radius, .speed = 1, .min = 0, .max = 20 });
if (zgui.collapsingHeader("Animation", .{})) {
_ = zgui.checkbox("animate", .{ .v = &self.state_binding.sun_ptr.animate });
var speed: f32 = self.state_binding.sun_ptr.animate_speed / 3;
const speed_changed = zgui.inputFloat("speed", .{ .v = &speed });
imguiToolTip("how long a day and night last in seconds", .{});
if (speed_changed) {
self.state_binding.sun_ptr.animate_speed = speed * 3;
}
// TODO: allow these to be changed: (?)
// slerp_orientations: [3]za.Quat,
// lerp_color: [3]za.Vec3,
// static_pos_vec: za.Vec3,
}
}
const ToolTipConfig = struct {
offset_from_start: f32 = 0,
spacing: f32 = 10,
};
fn imguiToolTip(comptime tip: []const u8, config: ToolTipConfig) void {
zgui.sameLine(.{
.offset_from_start_x = config.offset_from_start,
.spacing = config.spacing,
});
zgui.textDisabled("(?)", .{});
if (zgui.isItemHovered(.{})) {
_ = zgui.beginTooltip();
zgui.pushTextWrapPos(450);
zgui.textUnformatted(tip);
zgui.popTextWrapPos();
zgui.endTooltip();
}
}
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/Pipeline.zig | const std = @import("std");
const Allocator = std.mem.Allocator;
const glfw = @import("glfw");
const tracy = @import("ztracy");
const shaders = @import("shaders");
const vk = @import("vulkan");
const render = @import("../render.zig");
const Context = render.Context;
const Texture = render.Texture;
const vk_utils = render.vk_utils;
const memory = render.memory;
// TODO: move pipelines to ./internal/render/
const ComputePipeline = @import("ComputePipeline.zig");
const GraphicsPipeline = @import("GraphicsPipeline.zig");
const ImguiPipeline = @import("ImguiPipeline.zig");
const StagingRamp = render.StagingRamp;
const GpuBufferMemory = render.GpuBufferMemory;
const ImguiGui = @import("ImguiGui.zig");
const Camera = @import("Camera.zig");
const Sun = @import("Sun.zig");
const GridState = @import("brick/State.zig");
const gpu_types = @import("gpu_types.zig");
pub const Config = struct {
material_buffer: u64 = 256,
albedo_buffer: u64 = 256,
metal_buffer: u64 = 256,
dielectric_buffer: u64 = 256,
staging_buffers: usize = 2,
gfx_pipeline_config: GraphicsPipeline.Config = .{},
};
const Pixel = packed struct {
r: u8,
g: u8,
b: u8,
a: u8,
};
/// VoxelRT render pipeline
const Pipeline = @This();
allocator: Allocator,
image_memory_type_index: u32,
image_memory_size: vk.DeviceSize,
image_memory_capacity: vk.DeviceSize,
image_memory: vk.DeviceMemory,
compute_image_view: vk.ImageView,
compute_image: vk.Image,
sampler: vk.Sampler,
// buffers used to transfer to device local memory
staging_buffers: StagingRamp,
swapchain: render.swapchain.Data,
render_pass: vk.RenderPass,
present_complete_semaphore: vk.Semaphore,
render_complete_semaphore: vk.Semaphore,
render_complete_fence: vk.Fence,
compute_pipeline: ComputePipeline,
// TODO: rename pipeline
gfx_pipeline: GraphicsPipeline,
imgui_pipeline: ImguiPipeline,
camera: *Camera,
sun: *Sun,
gui: ImguiGui,
requested_rescale_pipeline: bool = false,
init_command_pool: vk.CommandPool, // kept in case of rescale
// shared vertex index buffer for imgui and graphics pipeline
vertex_index_buffer: GpuBufferMemory,
pub fn init(ctx: Context, allocator: Allocator, internal_render_resolution: vk.Extent2D, grid_state: GridState, camera: *Camera, sun: *Sun, config: Config) !Pipeline {
const init_zone = tracy.ZoneN(@src(), "init pipeline");
defer init_zone.End();
const pool_info = vk.CommandPoolCreateInfo{
.flags = .{ .transient_bit = true },
.queue_family_index = ctx.queue_indices.graphics,
};
const init_command_pool = try ctx.vkd.createCommandPool(ctx.logical_device, &pool_info, null);
// use graphics and compute index
// if they are the same, then we use that index
const indices = [_]u32{ ctx.queue_indices.graphics, ctx.queue_indices.compute };
const indices_len: usize = if (ctx.queue_indices.graphics == ctx.queue_indices.compute) 1 else 2;
const compute_image = blk: {
const image_info = vk.ImageCreateInfo{
.flags = .{},
.image_type = .@"2d",
.format = .r8g8b8a8_unorm,
.extent = vk.Extent3D{
.width = internal_render_resolution.width,
.height = internal_render_resolution.height,
.depth = 1,
},
.mip_levels = 1,
.array_layers = 1,
.samples = .{
.@"1_bit" = true,
},
.tiling = .optimal,
.usage = .{ .sampled_bit = true, .storage_bit = true },
.sharing_mode = .exclusive,
.queue_family_index_count = @intCast(u32, indices_len),
.p_queue_family_indices = &indices,
.initial_layout = .undefined,
};
break :blk try ctx.vkd.createImage(ctx.logical_device, &image_info, null);
};
errdefer ctx.vkd.destroyImage(ctx.logical_device, compute_image, null);
// Allocate memory for all pipeline images
const memory_requirements = ctx.vkd.getImageMemoryRequirements(ctx.logical_device, compute_image);
const image_memory_type_index = try vk_utils.findMemoryTypeIndex(ctx, memory_requirements.memory_type_bits, .{
.device_local_bit = true,
});
const image_memory_capacity = 250 * render.memory.bytes_in_mb;
const image_alloc_info = vk.MemoryAllocateInfo{
.allocation_size = image_memory_capacity,
.memory_type_index = image_memory_type_index,
};
const image_memory = try ctx.vkd.allocateMemory(ctx.logical_device, &image_alloc_info, null);
errdefer ctx.vkd.freeMemory(ctx.logical_device, image_memory, null);
try ctx.vkd.bindImageMemory(ctx.logical_device, compute_image, image_memory, 0);
var image_memory_size = memory_requirements.size;
try Texture.transitionImageLayout(ctx, init_command_pool, compute_image, .undefined, .shader_read_only_optimal);
const compute_image_view = blk: {
const image_view_info = vk.ImageViewCreateInfo{
.flags = .{},
.image = compute_image,
.view_type = .@"2d",
.format = .r8g8b8a8_unorm,
.components = .{
.r = .identity,
.g = .identity,
.b = .identity,
.a = .identity,
},
.subresource_range = .{
.aspect_mask = .{
.color_bit = true,
},
.base_mip_level = 0,
.level_count = 1,
.base_array_layer = 0,
.layer_count = 1,
},
};
break :blk try ctx.vkd.createImageView(ctx.logical_device, &image_view_info, null);
};
const sampler = blk: {
const sampler_info = vk.SamplerCreateInfo{
.flags = .{},
.mag_filter = .linear,
.min_filter = .linear,
.mipmap_mode = .linear,
.address_mode_u = .repeat,
.address_mode_v = .repeat,
.address_mode_w = .repeat,
.mip_lod_bias = 0.0,
.anisotropy_enable = vk.FALSE,
.max_anisotropy = 1.0,
.compare_enable = vk.FALSE,
.compare_op = .always,
.min_lod = 0.0,
.max_lod = 0.0,
.border_color = .int_opaque_black,
.unnormalized_coordinates = vk.FALSE,
};
break :blk try ctx.vkd.createSampler(ctx.logical_device, &sampler_info, null);
};
const swapchain = try render.swapchain.Data.init(allocator, ctx, init_command_pool, null);
errdefer swapchain.deinit(ctx);
const render_pass = try ctx.createRenderPass(swapchain.format);
errdefer ctx.destroyRenderPass(render_pass);
const semaphore_info = vk.SemaphoreCreateInfo{ .flags = .{} };
const present_complete_semaphore = try ctx.vkd.createSemaphore(ctx.logical_device, &semaphore_info, null);
errdefer ctx.vkd.destroySemaphore(ctx.logical_device, present_complete_semaphore, null);
const render_complete_semaphore = try ctx.vkd.createSemaphore(ctx.logical_device, &semaphore_info, null);
errdefer ctx.vkd.destroySemaphore(ctx.logical_device, render_complete_semaphore, null);
const fence_info = vk.FenceCreateInfo{
.flags = .{
.signaled_bit = true,
},
};
const render_complete_fence = try ctx.vkd.createFence(ctx.logical_device, &fence_info, null);
const MinSize = struct {
fn storage(ctx1: Context, size: u64) u64 {
const storage_size = ctx1.physical_device_limits.min_storage_buffer_offset_alignment;
return storage_size * (std.math.divCeil(vk.DeviceSize, size, storage_size) catch unreachable);
}
fn uniform(ctx1: Context, size: u64) u64 {
const uniform_size = ctx1.physical_device_limits.min_uniform_buffer_offset_alignment;
return uniform_size * (std.math.divCeil(vk.DeviceSize, size, uniform_size) catch unreachable);
}
};
var compute_pipeline = blk: {
const uniform_sizes = [_]u64{
// use storage min size for last uniform entry
MinSize.storage(ctx, @sizeOf(GridState.Device)),
};
const storage_sizes = [_]u64{
MinSize.storage(ctx, @sizeOf(gpu_types.Material) * config.material_buffer),
MinSize.storage(ctx, @sizeOf(gpu_types.Albedo) * config.albedo_buffer),
MinSize.storage(ctx, @sizeOf(gpu_types.Metal) * config.metal_buffer),
MinSize.storage(ctx, @sizeOf(gpu_types.Dielectric) * config.dielectric_buffer),
MinSize.storage(ctx, @sizeOf(u8) * grid_state.higher_order_grid.len),
MinSize.storage(ctx, @sizeOf(GridState.BrickStatusMask) * grid_state.brick_statuses.len),
MinSize.storage(ctx, @sizeOf(GridState.BrickIndex) * grid_state.brick_indices.len),
MinSize.storage(ctx, @sizeOf(GridState.Brick) * grid_state.bricks.len),
MinSize.storage(ctx, @sizeOf(u8) * grid_state.material_indices.len),
};
const state_configs = ComputePipeline.StateConfigs{ .uniform_sizes = uniform_sizes[0..], .storage_sizes = storage_sizes[0..] };
const target_image_info = ComputePipeline.ImageInfo{
.width = @intToFloat(f32, internal_render_resolution.width),
.height = @intToFloat(f32, internal_render_resolution.height),
.image = compute_image,
.sampler = sampler,
.image_view = compute_image_view,
};
break :blk try ComputePipeline.init(
allocator,
ctx,
target_image_info,
state_configs,
);
};
errdefer compute_pipeline.deinit(ctx);
try compute_pipeline.recordCommandBuffer(ctx, camera.*, sun.*);
var staging_buffers = try StagingRamp.init(ctx, allocator, config.staging_buffers);
errdefer staging_buffers.deinit(ctx, allocator);
var vertex_index_buffer = try GpuBufferMemory.init(
ctx,
memory.bytes_in_mb * 63,
.{ .vertex_buffer_bit = true, .index_buffer_bit = true },
.{ .host_visible_bit = true },
);
const gfx_pipeline = try GraphicsPipeline.init(
allocator,
ctx,
swapchain,
render_pass,
sampler,
compute_image_view,
&vertex_index_buffer,
config.gfx_pipeline_config,
);
errdefer gfx_pipeline.deinit(allocator, ctx);
const imgui_pipeline = try ImguiPipeline.init(
ctx,
allocator,
render_pass,
swapchain.images.len,
&staging_buffers,
gfx_pipeline.bytes_used_in_buffer,
image_memory_type_index,
image_memory,
image_memory_capacity,
&image_memory_size,
);
errdefer imgui_pipeline.deinit(ctx);
const state_binding = ImguiGui.StateBinding{
.camera_ptr = camera,
.grid_state = grid_state,
.sun_ptr = sun,
.gfx_pipeline_shader_constants = gfx_pipeline.shader_constants,
};
const gui = ImguiGui.init(
ctx,
@intToFloat(f32, swapchain.extent.width),
@intToFloat(f32, swapchain.extent.height),
state_binding,
.{},
);
return Pipeline{
.allocator = allocator,
.image_memory_type_index = image_memory_type_index,
.image_memory_size = image_memory_size,
.image_memory_capacity = image_memory_capacity,
.image_memory = image_memory,
.compute_image_view = compute_image_view,
.compute_image = compute_image,
.sampler = sampler,
.staging_buffers = staging_buffers,
.swapchain = swapchain,
.render_pass = render_pass,
.present_complete_semaphore = present_complete_semaphore,
.render_complete_semaphore = render_complete_semaphore,
.render_complete_fence = render_complete_fence,
.compute_pipeline = compute_pipeline,
.gfx_pipeline = gfx_pipeline,
.imgui_pipeline = imgui_pipeline,
.camera = camera,
.sun = sun,
.gui = gui,
.init_command_pool = init_command_pool,
.vertex_index_buffer = vertex_index_buffer,
};
}
pub fn deinit(self: Pipeline, ctx: Context) void {
ctx.vkd.queueWaitIdle(ctx.compute_queue) catch {};
ctx.vkd.queueWaitIdle(ctx.graphics_queue) catch {};
ctx.vkd.queueWaitIdle(ctx.present_queue) catch {};
ctx.vkd.destroySemaphore(ctx.logical_device, self.present_complete_semaphore, null);
ctx.vkd.destroySemaphore(ctx.logical_device, self.render_complete_semaphore, null);
ctx.vkd.destroyFence(ctx.logical_device, self.render_complete_fence, null);
// wait for staging buffer transfer to finish before deinit staging buffer and
// any potential src buffers
self.staging_buffers.waitIdle(ctx) catch {};
self.staging_buffers.deinit(ctx, self.allocator);
self.imgui_pipeline.deinit(ctx);
self.gfx_pipeline.deinit(self.allocator, ctx);
self.compute_pipeline.deinit(ctx);
ctx.destroyRenderPass(self.render_pass);
self.swapchain.deinit(ctx);
self.vertex_index_buffer.deinit(ctx);
ctx.vkd.destroyCommandPool(ctx.logical_device, self.init_command_pool, null);
ctx.vkd.destroySampler(ctx.logical_device, self.sampler, null);
ctx.vkd.destroyImageView(ctx.logical_device, self.compute_image_view, null);
ctx.vkd.destroyImage(ctx.logical_device, self.compute_image, null);
ctx.vkd.freeMemory(ctx.logical_device, self.image_memory, null);
}
// TODO: split these into multiple errors
pub const DrawError = error{
DeviceLost,
FullScreenExclusiveModeLostEXT,
OutOfDateKHR,
OutOfDeviceMemory,
OutOfHostMemory,
SurfaceLostKHR,
UnhandledAcquireResult,
Unknown,
InsufficientMemory,
MemoryMapFailed,
FailedToMapGPUMem,
PlatformError,
APIUnavailable,
CursorUnavailable,
FeatureUnavailable,
FeatureUnimplemented,
FormatUnavailable,
InvalidEnum,
InvalidValue,
NoCurrentContext,
NoWindowContext,
NotInitialized,
OutOfMemory,
PlatformUnavailable,
VersionUnavailable,
InitializationFailed,
NativeWindowInUseKHR,
NoSurfaceFormatsSupported,
NoPresentModesSupported,
StagingBuffersFull,
DestOutOfDeviceMemory,
StageOutOfDeviceMemory,
OutOfRegions,
};
/// draw a new frame, delta time is only used by gui
pub inline fn draw(self: *Pipeline, ctx: Context, dt: f32) DrawError!void {
const draw_zone = tracy.ZoneN(@src(), "draw");
defer draw_zone.End();
const compute_semaphore = try self.compute_pipeline.dispatch(ctx, self.camera.*, self.sun.*);
const image_index = blk: {
const aquired = ctx.vkd.acquireNextImageKHR(
ctx.logical_device,
self.swapchain.swapchain,
std.math.maxInt(u64),
self.present_complete_semaphore,
.null_handle,
);
if (aquired) |ok| switch (ok.result) {
.success => break :blk ok.image_index,
.suboptimal_khr => {
self.requested_rescale_pipeline = true;
break :blk ok.image_index;
},
else => {
// TODO: handle timeout and not_ready
return error.UnhandledAcquireResult;
},
} else |err| switch (err) {
error.OutOfDateKHR => {
self.requested_rescale_pipeline = true;
return;
},
else => {
return err;
},
}
};
{
const wait_render_zone = tracy.ZoneN(@src(), "render wait complete");
defer wait_render_zone.End();
// wait for previous texture draw before updating buffers and command buffers
_ = try ctx.vkd.waitForFences(ctx.logical_device, 1, @ptrCast([*]const vk.Fence, &self.render_complete_fence), vk.TRUE, std.math.maxInt(u64));
try ctx.vkd.resetFences(ctx.logical_device, 1, @ptrCast([*]const vk.Fence, &self.render_complete_fence));
}
self.gui.newFrame(ctx, self, image_index == 0, dt);
try self.imgui_pipeline.updateBuffers(ctx, &self.vertex_index_buffer);
// re-record command buffer to update any state
try ctx.vkd.resetCommandPool(ctx.logical_device, self.gfx_pipeline.command_pools[image_index], .{});
try self.recordCommandBuffer(ctx, image_index);
const stage_masks = [_]vk.PipelineStageFlags{ .{ .vertex_input_bit = true }, .{ .color_attachment_output_bit = true } };
const wait_semaphores = [stage_masks.len]vk.Semaphore{ compute_semaphore, self.present_complete_semaphore };
const render_submit_info = vk.SubmitInfo{
.wait_semaphore_count = wait_semaphores.len,
.p_wait_semaphores = &wait_semaphores,
.p_wait_dst_stage_mask = &stage_masks,
.command_buffer_count = 1,
.p_command_buffers = @ptrCast([*]const vk.CommandBuffer, &self.gfx_pipeline.command_buffers[image_index]),
.signal_semaphore_count = 1,
.p_signal_semaphores = @ptrCast([*]const vk.Semaphore, &self.render_complete_semaphore),
};
try ctx.vkd.queueSubmit(
ctx.graphics_queue,
1,
@ptrCast([*]const vk.SubmitInfo, &render_submit_info),
self.render_complete_fence,
);
const present_info = vk.PresentInfoKHR{
.wait_semaphore_count = 1,
.p_wait_semaphores = @ptrCast([*]const vk.Semaphore, &self.render_complete_semaphore),
.swapchain_count = 1,
.p_swapchains = @ptrCast([*]const vk.SwapchainKHR, &self.swapchain.swapchain),
.p_image_indices = @ptrCast([*]const u32, &image_index),
.p_results = null,
};
const queue_result = ctx.vkd.queuePresentKHR(ctx.graphics_queue, &present_info);
if (queue_result) |ok| switch (ok) {
vk.Result.suboptimal_khr => self.requested_rescale_pipeline = true,
else => {},
} else |err| switch (err) {
error.OutOfDateKHR => self.requested_rescale_pipeline = true,
else => return err,
}
if (self.requested_rescale_pipeline) try self.rescalePipeline(ctx);
// transfer any pending transfers
try self.staging_buffers.flush(ctx);
}
pub fn setDenoiseSampleCount(self: *Pipeline, sample_count: i32) void {
self.gfx_pipeline.shader_constants.samples = sample_count;
}
pub fn setDenoiseDistributionBias(self: *Pipeline, distribution_bias: f32) void {
self.gfx_pipeline.shader_constants.distribution_bias = distribution_bias;
}
pub fn setDenoiseInverseHueTolerance(self: *Pipeline, inverse_hue_tolerance: f32) void {
self.gfx_pipeline.shader_constants.inverse_hue_tolerance = inverse_hue_tolerance;
}
pub fn setDenoisePixelMultiplier(self: *Pipeline, pixel_multiplier: f32) void {
self.gfx_pipeline.shader_constants.pixel_multiplier = pixel_multiplier;
}
/// Transfer grid data to GPU
pub fn transferGridState(self: *Pipeline, ctx: Context, grid: GridState) !void {
const grid_data = [_]GridState.Device{grid.device_state};
const buffer_offset = self.compute_pipeline.uniform_offsets[0];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset,
GridState.Device,
grid_data[0..],
);
}
/// Transfer material data to GPU
pub fn transferMaterials(self: *Pipeline, ctx: Context, offset: usize, materials: []const gpu_types.Material) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[0];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(gpu_types.Material),
gpu_types.Material,
materials,
);
}
/// Transfer albedo data to GPU
pub fn transferAlbedos(self: *Pipeline, ctx: Context, offset: usize, albedo: []const gpu_types.Albedo) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[1];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(gpu_types.Albedo),
gpu_types.Albedo,
albedo,
);
}
/// Transfer metal data to GPU
pub fn transferMetals(self: *Pipeline, ctx: Context, offset: usize, metals: []const gpu_types.Metal) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[2];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(gpu_types.Metal),
gpu_types.Metal,
metals,
);
}
/// Transfer dielectric data to GPU
pub fn transferDielectrics(self: *Pipeline, ctx: Context, offset: usize, dielectrics: []const gpu_types.Dielectric) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[3];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(gpu_types.Dielectric),
gpu_types.Dielectric,
dielectrics,
);
}
/// Transfer higher order grid data to GPU
pub inline fn transferHigherOrderGrid(self: *Pipeline, ctx: Context, offset: usize, higher_order_grid: []const u8) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[4];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(u8),
u8,
higher_order_grid,
);
}
/// Transfer entry types data to GPU
pub inline fn transferBrickStatuses(self: *Pipeline, ctx: Context, offset: usize, brick_statuses: []const GridState.BrickStatusMask) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[5];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(GridState.BrickStatusMask),
GridState.BrickStatusMask,
brick_statuses,
);
}
/// Transfer entry indices data to GPU
pub inline fn transferBrickIndices(self: *Pipeline, ctx: Context, offset: usize, brick_indices: []const GridState.BrickIndex) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[6];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(GridState.BrickIndex),
GridState.BrickIndex,
brick_indices,
);
}
/// Transfer bricks data to GPU
pub fn transferBricks(self: *Pipeline, ctx: Context, offset: usize, bricks: []const GridState.Brick) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[7];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(GridState.Brick),
GridState.Brick,
bricks,
);
}
/// Transfer material index data to GPU
pub inline fn transferMaterialIndices(self: *Pipeline, ctx: Context, offset: usize, material_indices: []const u8) !void {
const buffer_offset = self.compute_pipeline.storage_offsets[8];
try self.staging_buffers.transferToBuffer(
ctx,
&self.compute_pipeline.buffers,
buffer_offset + offset * @sizeOf(u8),
u8,
material_indices,
);
}
// TODO: make allow to multithread this
/// Used to update the pipeline according to changes in the window spec
/// This functions should only be called from the main thread (see glfwGetFramebufferSize)
fn rescalePipeline(self: *Pipeline, ctx: Context) !void {
const rescale_zone = tracy.ZoneN(@src(), "rescale pipeline");
defer rescale_zone.End();
var window_size = ctx.window_ptr.*.getFramebufferSize();
if (window_size.width == 0 or window_size.height == 0) {
window_size = ctx.window_ptr.*.getFramebufferSize();
glfw.waitEvents();
}
self.requested_rescale_pipeline = false;
// Wait for pipeline to become idle
{
_ = ctx.vkd.waitForFences(
ctx.logical_device,
1,
@ptrCast([*]vk.Fence, &self.compute_pipeline.complete_fence),
vk.TRUE,
std.math.maxInt(u64),
) catch |err| std.debug.print("failed to wait for compute fences, err: {any}", .{err});
// wait for previous texture draw before updating buffers and command buffers
_ = try ctx.vkd.waitForFences(ctx.logical_device, 1, @ptrCast([*]const vk.Fence, &self.render_complete_fence), vk.TRUE, std.math.maxInt(u64));
}
// recreate swapchain utilizing the old one
const old_swapchain = self.swapchain;
defer old_swapchain.deinit(ctx);
self.swapchain = try render.swapchain.Data.init(self.allocator, ctx, self.init_command_pool, old_swapchain.swapchain);
errdefer self.swapchain.deinit(ctx);
// recreate renderpass
ctx.destroyRenderPass(self.render_pass);
self.render_pass = try ctx.createRenderPass(self.swapchain.format);
errdefer ctx.destroyRenderPass(self.render_pass);
// recreate framebuffers
for (self.gfx_pipeline.framebuffers) |framebuffer| {
ctx.vkd.destroyFramebuffer(ctx.logical_device, framebuffer, null);
}
self.gfx_pipeline.framebuffers = try render.pipeline.createFramebuffers(self.allocator, ctx, &self.swapchain, self.render_pass, self.gfx_pipeline.framebuffers);
errdefer {
for (self.gfx_pipeline.framebuffers) |buffer| {
ctx.vkd.destroyFramebuffer(ctx.logical_device, buffer, null);
}
self.allocator.free(self.gfx_pipeline.framebuffers);
}
self.gui.handleRescale(@intToFloat(f32, window_size.width), @intToFloat(f32, window_size.height));
}
/// prepare gfx_pipeline + imgui_pipeline command buffer
fn recordCommandBuffers(self: Pipeline, ctx: Context) !void {
// copy begin info
for (0..self.gfx_pipeline.command_buffers.len) |i| {
try self.recordCommandBuffer(ctx, i);
}
}
// TODO: properly handling of errors
fn recordCommandBuffer(self: Pipeline, ctx: Context, index: usize) !void {
const record_zone = tracy.ZoneN(@src(), "record gfx & imgui commands");
defer record_zone.End();
const command_buffer = self.gfx_pipeline.command_buffers[index];
try ctx.vkd.beginCommandBuffer(command_buffer, &command_buffer_info);
// make sure that compute shader writes are finished before sampling from the texture
const image_barrier = vk.ImageMemoryBarrier{
.src_access_mask = .{ .shader_write_bit = true },
.dst_access_mask = .{ .shader_read_bit = true },
.old_layout = .general,
.new_layout = .shader_read_only_optimal,
.src_queue_family_index = ctx.queue_indices.compute,
.dst_queue_family_index = ctx.queue_indices.graphics,
.image = self.compute_image,
.subresource_range = .{
.aspect_mask = .{ .color_bit = true },
.base_mip_level = 0,
.level_count = 1,
.base_array_layer = 0,
.layer_count = 1,
},
};
ctx.vkd.cmdPipelineBarrier(
command_buffer,
.{ .compute_shader_bit = true },
.{ .fragment_shader_bit = true },
.{},
0,
undefined,
0,
undefined,
1,
@ptrCast([*]const vk.ImageMemoryBarrier, &image_barrier),
);
const render_pass_begin_info = vk.RenderPassBeginInfo{
.render_pass = self.render_pass,
.framebuffer = self.gfx_pipeline.framebuffers[index],
.render_area = .{
.offset = .{ .x = 0, .y = 0 },
.extent = self.swapchain.extent,
},
.clear_value_count = 0,
.p_clear_values = undefined,
};
ctx.vkd.cmdBeginRenderPass(command_buffer, &render_pass_begin_info, .@"inline");
{
const viewport = vk.Viewport{
.x = 0,
.y = 0,
.width = @intToFloat(f32, self.swapchain.extent.width),
.height = @intToFloat(f32, self.swapchain.extent.height),
.min_depth = 0,
.max_depth = 1,
};
ctx.vkd.cmdSetViewport(
command_buffer,
0,
1,
@ptrCast([*]const vk.Viewport, &viewport),
);
}
{
const scissor = vk.Rect2D{
.offset = .{
.x = 0,
.y = 0,
},
.extent = self.swapchain.extent,
};
ctx.vkd.cmdSetScissor(command_buffer, 0, 1, @ptrCast([*]const vk.Rect2D, &scissor));
}
ctx.vkd.cmdPushConstants(
command_buffer,
self.gfx_pipeline.pipeline_layout,
.{ .fragment_bit = true },
0,
@sizeOf(GraphicsPipeline.PushConstant),
self.gfx_pipeline.shader_constants,
);
ctx.vkd.cmdBindDescriptorSets(
command_buffer,
.graphics,
self.gfx_pipeline.pipeline_layout,
0,
1,
@ptrCast([*]const vk.DescriptorSet, &self.gfx_pipeline.descriptor_set),
0,
undefined,
);
ctx.vkd.cmdBindPipeline(command_buffer, .graphics, self.gfx_pipeline.pipeline);
ctx.vkd.cmdBindVertexBuffers(
command_buffer,
0,
1,
@ptrCast([*]const vk.Buffer, &self.vertex_index_buffer.buffer),
&vertex_zero_offset,
);
ctx.vkd.cmdBindIndexBuffer(command_buffer, self.vertex_index_buffer.buffer, GraphicsPipeline.vertex_size, .uint16);
ctx.vkd.cmdDrawIndexed(command_buffer, GraphicsPipeline.indices.len, 1, 0, 0, 0);
try self.imgui_pipeline.recordCommandBuffer(
ctx,
command_buffer,
self.gfx_pipeline.bytes_used_in_buffer,
self.vertex_index_buffer,
);
ctx.vkd.cmdEndRenderPass(command_buffer);
try ctx.vkd.endCommandBuffer(command_buffer);
}
const command_buffer_info = vk.CommandBufferBeginInfo{
.flags = .{
.one_time_submit_bit = true,
},
.p_inheritance_info = null,
};
const vertex_zero_offset = [_]vk.DeviceSize{0};
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/Sun.zig | const za = @import("zalgebra");
const math = @import("std").math;
pub const Config = struct {
animate: bool = true,
animate_speed: f32 = 0.1,
enabled: bool = true,
color: [3]f32 = [_]f32{ 1, 1.1, 1 },
radius: f32 = 5,
sun_distance: f32 = 1000,
};
pub const Device = extern struct {
position: [3]f32,
enabled: u32,
color: [3]f32,
radius: f32,
};
const Sun = @This();
device_data: Device,
animate: bool,
animate_speed: f32,
slerp_index: usize,
slerp_pos: f32,
// used to rotate sun around grid
slerp_orientations: [3]za.Quat,
lerp_color: [3]za.Vec3,
static_pos_vec: za.Vec3,
pub fn init(config: Config) Sun {
const slerp_orientations = [_]za.Quat{
za.Quat.fromEulerAngles(za.Vec3.new(0, 0, 0)),
za.Quat.fromEulerAngles(za.Vec3.new(0, 10, 120)),
za.Quat.fromEulerAngles(za.Vec3.new(0, 0, 240)),
};
const static_pos_vec = za.Vec3.new(0, -config.sun_distance, 0);
const lerp_color = [_]za.Vec3{
za.Vec3.new(1, 0.99, 0.823),
za.Vec3.new(0.9, 0.45, 0.45),
za.Vec3.new(1, 0.7569, 0.5412),
};
return Sun{
.device_data = .{
.enabled = @intCast(u32, @boolToInt(config.enabled)),
.position = static_pos_vec.data,
.color = config.color,
.radius = config.radius,
},
.animate = config.animate,
.animate_speed = config.animate_speed,
.slerp_index = 0,
.slerp_pos = 0,
.slerp_orientations = slerp_orientations,
.static_pos_vec = static_pos_vec,
.lerp_color = lerp_color,
};
}
pub inline fn update(self: *Sun, delta_time: f32) void {
if (self.animate == false or self.device_data.enabled == 0) return;
const next_index = (self.slerp_index + 1) % self.slerp_orientations.len;
{
const quat_a = self.slerp_orientations[self.slerp_index];
const quat_b = self.slerp_orientations[next_index];
self.device_data.position = quat_a.slerp(quat_b, self.slerp_pos).rotateVec(self.static_pos_vec).data;
}
{
const color_a = self.lerp_color[self.slerp_index];
const color_b = self.lerp_color[next_index];
self.device_data.color = color_a.lerp(color_b, self.slerp_pos).data;
}
self.slerp_pos += self.animate_speed * delta_time;
if (self.slerp_pos > 1) {
self.slerp_pos = math.modf(self.slerp_pos).fpart;
self.slerp_index = next_index;
}
}
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/gpu_types.zig | const std = @import("std");
const Vec3 = @Vector(3, f32);
const Vec4 = @Vector(4, f32);
pub const BufferConfig = @import("../render.zig").ComputeDrawPipeline.BufferConfig;
// storage value that hold the binidng value in shader, and size of a given type
const MapValue = struct {
binding: u32,
size: u64,
};
// Camera uniform is defined in Camera.zig
/// Materials define how a ray should interact with a given voxel
pub const Material = packed struct {
/// Type is the main attribute of a material and define reflection and refraction behaviour
pub const Type = enum(u2) {
/// normal diffuse material
lambertian = 0,
/// shiny material with fuzz
metal = 1,
/// glass and other see through material
dielectric = 2,
};
type: Type,
/// index in the type array
/// i.e: type = material, type_index = 0 points to index 0 in metal array
type_index: u6,
/// index to the color of the voxel
albedo_index: u8,
};
pub const Albedo = extern struct {
color: [4]f32,
};
pub const Metal = extern struct {
fuzz: f32,
};
pub const Dielectric = extern struct {
internal_reflection: f32,
};
pub const Node = extern struct {
pub const Type = enum(u32) {
empty = 0,
parent,
leaf,
};
type: Type,
value: u32,
};
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/GraphicsPipeline.zig | const std = @import("std");
const Allocator = std.mem.Allocator;
const vk = @import("vulkan");
const render = @import("../render.zig");
const Context = render.Context;
const GpuBufferMemory = render.GpuBufferMemory;
const Swapchain = render.swapchain.Data;
const memory = render.memory;
const shaders = @import("shaders");
const Vertex = extern struct {
pos: [3]f32,
uv: [2]f32,
};
pub const vertex_size = vertices.len * @sizeOf(Vertex);
pub const indices_size = indices.len * @sizeOf(u16);
pub const vertices = [_]Vertex{
.{ .pos = .{ 1.0, 1.0, 0.0 }, .uv = .{ 1.0, 1.0 } },
.{ .pos = .{ -1.0, 1.0, 0.0 }, .uv = .{ 0.0, 1.0 } },
.{ .pos = .{ -1.0, -1.0, 0.0 }, .uv = .{ 0.0, 0.0 } },
.{ .pos = .{ 1.0, -1.0, 0.0 }, .uv = .{ 1.0, 0.0 } },
};
pub const indices = [_]u16{ 0, 1, 2, 2, 3, 0 };
pub const PushConstant = extern struct {
samples: i32,
distribution_bias: f32,
pixel_multiplier: f32,
inverse_hue_tolerance: f32,
};
pub const Config = struct {
samples: i32 = 20, // HIGHER = NICER = SLOWER
distribution_bias: f32 = 0.6, // between 0. and 1.
pixel_multiplier: f32 = 1.5, // between 1. and 3. (keep low)
inverse_hue_tolerance: f32 = 20, // (2. - 30.)
};
/// Pipeline to draw a single texture to screen
const GraphicsPipeline = @This();
bytes_used_in_buffer: vk.DeviceSize,
pipeline_cache: vk.PipelineCache,
pipeline_layout: vk.PipelineLayout,
pipeline: vk.Pipeline,
descriptor_set_layout: vk.DescriptorSetLayout,
descriptor_set: vk.DescriptorSet,
descriptor_pool: vk.DescriptorPool,
current_frame: usize,
command_pools: []vk.CommandPool,
command_buffers: []vk.CommandBuffer,
framebuffers: []vk.Framebuffer,
shader_constants: *PushConstant,
// shader modules stored for cleanup
shader_modules: [2]vk.ShaderModule,
pub fn init(
allocator: Allocator,
ctx: Context,
swapchain: Swapchain,
render_pass: vk.RenderPass,
draw_sampler: vk.Sampler,
draw_image_view: vk.ImageView,
vertex_index_buffer: *GpuBufferMemory,
config: Config,
) !GraphicsPipeline {
try vertex_index_buffer.transferToDevice(ctx, Vertex, 0, vertices[0..]);
try vertex_index_buffer.transferToDevice(ctx, u16, vertex_size, indices[0..]);
const bytes_used_in_buffer = memory.nonCoherentAtomSize(ctx, vertex_size * indices_size);
if (bytes_used_in_buffer > vertex_index_buffer.size) {
return error.OutOfDeviceMemory;
}
const descriptor_pool = blk: {
const pool_sizes = [_]vk.DescriptorPoolSize{.{
.type = .combined_image_sampler,
.descriptor_count = 1, // TODO: swap image size ?
}};
const descriptor_pool_info = vk.DescriptorPoolCreateInfo{
.flags = .{},
.max_sets = @intCast(u32, swapchain.images.len),
.pool_size_count = pool_sizes.len,
.p_pool_sizes = &pool_sizes,
};
break :blk try ctx.vkd.createDescriptorPool(ctx.logical_device, &descriptor_pool_info, null);
};
errdefer ctx.vkd.destroyDescriptorPool(ctx.logical_device, descriptor_pool, null);
const descriptor_set_layout = blk: {
const set_layout_bindings = [_]vk.DescriptorSetLayoutBinding{.{
.binding = 0,
.descriptor_type = .combined_image_sampler,
.descriptor_count = 1,
.stage_flags = .{
.fragment_bit = true,
},
.p_immutable_samplers = null,
}};
const set_layout_info = vk.DescriptorSetLayoutCreateInfo{
.flags = .{},
.binding_count = set_layout_bindings.len,
.p_bindings = &set_layout_bindings,
};
break :blk try ctx.vkd.createDescriptorSetLayout(ctx.logical_device, &set_layout_info, null);
};
errdefer ctx.vkd.destroyDescriptorSetLayout(ctx.logical_device, descriptor_set_layout, null);
const descriptor_set = blk: {
const alloc_info = vk.DescriptorSetAllocateInfo{
.descriptor_pool = descriptor_pool,
.descriptor_set_count = 1,
.p_set_layouts = @ptrCast([*]const vk.DescriptorSetLayout, &descriptor_set_layout),
};
var descriptor_set_tmp: vk.DescriptorSet = undefined;
try ctx.vkd.allocateDescriptorSets(
ctx.logical_device,
&alloc_info,
@ptrCast([*]vk.DescriptorSet, &descriptor_set_tmp),
);
break :blk descriptor_set_tmp;
};
errdefer ctx.vkd.freeDescriptorSets(
ctx.logical_device,
descriptor_pool,
1,
@ptrCast([*]const vk.DescriptorSet, &descriptor_set),
) catch {};
{
const descriptor_info = vk.DescriptorImageInfo{
.sampler = draw_sampler,
.image_view = draw_image_view,
.image_layout = .shader_read_only_optimal,
};
const write_descriptor_sets = [_]vk.WriteDescriptorSet{.{
.dst_set = descriptor_set,
.dst_binding = 0,
.dst_array_element = 0,
.descriptor_count = 1,
.descriptor_type = .combined_image_sampler,
.p_image_info = @ptrCast([*]const vk.DescriptorImageInfo, &descriptor_info),
.p_buffer_info = undefined,
.p_texel_buffer_view = undefined,
}};
ctx.vkd.updateDescriptorSets(
ctx.logical_device,
write_descriptor_sets.len,
@ptrCast([*]const vk.WriteDescriptorSet, &write_descriptor_sets),
0,
undefined,
);
}
const pipeline_layout = blk: {
const push_constant_range = vk.PushConstantRange{
.stage_flags = .{ .fragment_bit = true },
.offset = 0,
.size = @sizeOf(PushConstant),
};
const pipeline_layout_info = vk.PipelineLayoutCreateInfo{
.flags = .{},
.set_layout_count = 1,
.p_set_layouts = @ptrCast([*]const vk.DescriptorSetLayout, &descriptor_set_layout),
.push_constant_range_count = 1,
.p_push_constant_ranges = @ptrCast([*]const vk.PushConstantRange, &push_constant_range),
};
break :blk try ctx.vkd.createPipelineLayout(ctx.logical_device, &pipeline_layout_info, null);
};
errdefer ctx.vkd.destroyPipelineLayout(ctx.logical_device, pipeline_layout, null);
const input_assembly_state = vk.PipelineInputAssemblyStateCreateInfo{
.flags = .{},
.topology = .triangle_list,
.primitive_restart_enable = vk.FALSE,
};
const rasterization_state = vk.PipelineRasterizationStateCreateInfo{
.flags = .{},
.depth_clamp_enable = vk.FALSE,
.rasterizer_discard_enable = vk.FALSE,
.polygon_mode = .fill,
.cull_mode = .{},
.front_face = .counter_clockwise,
.depth_bias_enable = 0,
.depth_bias_constant_factor = 0,
.depth_bias_clamp = 0,
.depth_bias_slope_factor = 0,
.line_width = 1,
};
const blend_attachment_state = vk.PipelineColorBlendAttachmentState{
.blend_enable = vk.TRUE,
.src_color_blend_factor = .src_alpha,
.dst_color_blend_factor = .one_minus_src_alpha,
.color_blend_op = .add,
.src_alpha_blend_factor = .one_minus_src_alpha,
.dst_alpha_blend_factor = .zero,
.alpha_blend_op = .add,
.color_write_mask = .{
.r_bit = true,
.g_bit = true,
.b_bit = true,
.a_bit = true,
},
};
const color_blend_state = vk.PipelineColorBlendStateCreateInfo{
.flags = .{},
.logic_op_enable = vk.FALSE,
.logic_op = .clear,
.attachment_count = 1,
.p_attachments = @ptrCast([*]const vk.PipelineColorBlendAttachmentState, &blend_attachment_state),
.blend_constants = [4]f32{ 0, 0, 0, 0 },
};
// TODO: deviation from guide. Validate that still valid!
const depth_stencil_state: ?*vk.PipelineDepthStencilStateCreateInfo = null;
const viewport_state = vk.PipelineViewportStateCreateInfo{
.flags = .{},
.viewport_count = 1,
.p_viewports = null, // viewport is created on draw
.scissor_count = 1,
.p_scissors = null, // scissor is created on draw
};
const multisample_state = vk.PipelineMultisampleStateCreateInfo{
.flags = .{},
.rasterization_samples = .{ .@"1_bit" = true },
.sample_shading_enable = vk.FALSE,
.min_sample_shading = 0,
.p_sample_mask = null,
.alpha_to_coverage_enable = vk.FALSE,
.alpha_to_one_enable = vk.FALSE,
};
const dynamic_state_enabled = [_]vk.DynamicState{
.viewport,
.scissor,
};
const dynamic_state = vk.PipelineDynamicStateCreateInfo{
.flags = .{},
.dynamic_state_count = dynamic_state_enabled.len,
.p_dynamic_states = &dynamic_state_enabled,
};
const vert = blk: {
const create_info = vk.ShaderModuleCreateInfo{
.flags = .{},
.p_code = @ptrCast([*]const u32, &shaders.image_vert_spv),
.code_size = shaders.image_vert_spv.len,
};
const module = try ctx.vkd.createShaderModule(ctx.logical_device, &create_info, null);
break :blk vk.PipelineShaderStageCreateInfo{
.flags = .{},
.stage = .{ .vertex_bit = true },
.module = module,
.p_name = "main",
.p_specialization_info = null,
};
};
errdefer ctx.vkd.destroyShaderModule(ctx.logical_device, vert.module, null);
const frag = blk: {
const create_info = vk.ShaderModuleCreateInfo{
.flags = .{},
.p_code = @ptrCast([*]const u32, &shaders.image_frag_spv),
.code_size = shaders.image_frag_spv.len,
};
const module = try ctx.vkd.createShaderModule(ctx.logical_device, &create_info, null);
break :blk vk.PipelineShaderStageCreateInfo{
.flags = .{},
.stage = .{ .fragment_bit = true },
.module = module,
.p_name = "main",
.p_specialization_info = null,
};
};
errdefer ctx.vkd.destroyShaderModule(ctx.logical_device, frag.module, null);
const shader_stages = [_]vk.PipelineShaderStageCreateInfo{ vert, frag };
const vertex_input_bindings = [_]vk.VertexInputBindingDescription{.{
.binding = 0,
.stride = @sizeOf(Vertex),
.input_rate = .vertex,
}};
const vertex_input_attributes = [_]vk.VertexInputAttributeDescription{ .{
.location = 0,
.binding = 0,
.format = .r32g32_sfloat,
.offset = @offsetOf(Vertex, "pos"),
}, .{
.location = 1,
.binding = 0,
.format = .r32g32_sfloat,
.offset = @offsetOf(Vertex, "uv"),
} };
const vertex_input_state = vk.PipelineVertexInputStateCreateInfo{
.flags = .{},
.vertex_binding_description_count = vertex_input_bindings.len,
.p_vertex_binding_descriptions = &vertex_input_bindings,
.vertex_attribute_description_count = vertex_input_attributes.len,
.p_vertex_attribute_descriptions = &vertex_input_attributes,
};
const pipeline_cache = blk: {
const pipeline_cache_info = vk.PipelineCacheCreateInfo{
.flags = .{},
.initial_data_size = 0,
.p_initial_data = undefined,
};
break :blk try ctx.vkd.createPipelineCache(ctx.logical_device, &pipeline_cache_info, null);
};
errdefer ctx.vkd.destroyPipelineCache(ctx.logical_device, pipeline_cache, null);
const pipeline_create_info = vk.GraphicsPipelineCreateInfo{
.flags = .{},
.stage_count = shader_stages.len,
.p_stages = &shader_stages,
.p_vertex_input_state = &vertex_input_state,
.p_input_assembly_state = &input_assembly_state,
.p_tessellation_state = null,
.p_viewport_state = &viewport_state,
.p_rasterization_state = &rasterization_state,
.p_multisample_state = &multisample_state,
.p_depth_stencil_state = depth_stencil_state,
.p_color_blend_state = &color_blend_state,
.p_dynamic_state = &dynamic_state,
.layout = pipeline_layout,
.render_pass = render_pass,
.subpass = 0,
.base_pipeline_handle = vk.Pipeline.null_handle,
.base_pipeline_index = -1,
};
var pipeline: vk.Pipeline = undefined;
_ = try ctx.vkd.createGraphicsPipelines(
ctx.logical_device,
pipeline_cache,
1,
@ptrCast([*]const vk.GraphicsPipelineCreateInfo, &pipeline_create_info),
null,
@ptrCast([*]vk.Pipeline, &pipeline),
);
errdefer ctx.vkd.destroyPipeline(ctx.logical_device, pipeline, null);
const pool_info = vk.CommandPoolCreateInfo{
.flags = .{ .transient_bit = true },
.queue_family_index = ctx.queue_indices.graphics,
};
const command_pools = try allocator.alloc(vk.CommandPool, swapchain.images.len);
errdefer allocator.free(command_pools);
const command_buffers = try allocator.alloc(vk.CommandBuffer, swapchain.images.len);
errdefer allocator.free(command_buffers);
var initialized_pools: usize = 0;
var initialized_buffers: usize = 0;
for (command_pools, 0..) |*command_pool, i| {
command_pool.* = try ctx.vkd.createCommandPool(ctx.logical_device, &pool_info, null);
initialized_pools = i + 1;
command_buffers[i] = try render.pipeline.createCmdBuffer(ctx, command_pool.*);
initialized_buffers = i + 1;
}
errdefer {
var i: usize = 0;
while (i < initialized_buffers) : (i += 1) {
ctx.vkd.freeCommandBuffers(
ctx.logical_device,
command_pools[i],
1,
@ptrCast([*]const vk.CommandBuffer, &command_buffers[i]),
);
}
i = 0;
while (i < initialized_pools) : (i += 1) {
ctx.vkd.destroyCommandPool(ctx.logical_device, command_pools[i], null);
}
}
const framebuffers = try render.pipeline.createFramebuffers(allocator, ctx, &swapchain, render_pass, null);
errdefer {
for (framebuffers) |buffer| {
ctx.vkd.destroyFramebuffer(ctx.logical_device, buffer, null);
}
allocator.free(framebuffers);
}
const shader_constants = try allocator.create(PushConstant);
shader_constants.* = .{
.samples = config.samples,
.distribution_bias = config.distribution_bias,
.pixel_multiplier = config.pixel_multiplier,
.inverse_hue_tolerance = config.inverse_hue_tolerance,
};
return GraphicsPipeline{
.bytes_used_in_buffer = bytes_used_in_buffer,
.pipeline_cache = pipeline_cache,
.pipeline_layout = pipeline_layout,
.pipeline = pipeline,
.descriptor_set_layout = descriptor_set_layout,
.descriptor_set = descriptor_set,
.descriptor_pool = descriptor_pool,
.current_frame = 0,
.command_pools = command_pools,
.command_buffers = command_buffers,
.framebuffers = framebuffers,
.shader_modules = [2]vk.ShaderModule{ vert.module, frag.module },
.shader_constants = shader_constants,
};
}
pub fn deinit(self: GraphicsPipeline, allocator: Allocator, ctx: Context) void {
for (self.framebuffers) |buffer| {
ctx.vkd.destroyFramebuffer(ctx.logical_device, buffer, null);
}
allocator.free(self.framebuffers);
for (self.command_buffers, 0..) |command_buffer, i| {
ctx.vkd.freeCommandBuffers(
ctx.logical_device,
self.command_pools[i],
1,
@ptrCast([*]const vk.CommandBuffer, &command_buffer),
);
}
for (self.command_pools) |command_pool| {
ctx.vkd.destroyCommandPool(ctx.logical_device, command_pool, null);
}
allocator.free(self.command_pools);
allocator.free(self.command_buffers);
ctx.vkd.destroyPipeline(ctx.logical_device, self.pipeline, null);
ctx.vkd.destroyPipelineCache(ctx.logical_device, self.pipeline_cache, null);
ctx.vkd.destroyShaderModule(ctx.logical_device, self.shader_modules[0], null);
ctx.vkd.destroyShaderModule(ctx.logical_device, self.shader_modules[1], null);
ctx.vkd.destroyPipelineLayout(ctx.logical_device, self.pipeline_layout, null);
ctx.vkd.destroyDescriptorSetLayout(ctx.logical_device, self.descriptor_set_layout, null);
ctx.vkd.destroyDescriptorPool(ctx.logical_device, self.descriptor_pool, null);
allocator.destroy(self.shader_constants);
}
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/test.zig | test {
_ = @import("vox/test.zig");
}
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/Camera.zig | const std = @import("std");
const za = @import("zalgebra");
const Vec3 = @Vector(3, f32);
pub const Config = struct {
viewport_height: f32 = 2,
origin: Vec3 = za.Vec3.zero().data,
samples_per_pixel: i32 = 2,
max_bounce: i32 = 2,
turn_rate: f32 = 0.1,
normal_speed: f32 = 1,
sprint_speed: f32 = 2,
user_input_diabled: bool = false,
};
const Camera = @This();
turn_rate: f32,
normal_speed: f32,
sprint_speed: f32,
movement_speed: f32,
user_input_diabled: bool,
/// changes to viewport_x should call propogatePitchChange
viewport_width: f32,
viewport_height: f32,
pitch: za.Quat,
yaw: za.Quat,
vertical_fov: f32,
d_camera: Device,
pub fn init(vertical_fov: f32, image_width: u32, image_height: u32, config: Config) Camera {
const aspect_ratio = @intToFloat(f32, image_width) / @intToFloat(f32, image_height);
const a: comptime_float = std.math.pi * (1.0 / 180.0);
const viewport_height = blk: {
const theta = vertical_fov * a;
const height = config.viewport_height;
break :blk height * @tan(theta * 0.5);
};
const viewport_width = aspect_ratio * viewport_height;
const forward = za.Vec3.forward();
const right = za.Vec3.up().cross(forward).norm();
const up = forward.cross(right).norm();
const horizontal = right.scale(viewport_width);
const vertical = up.scale(viewport_height);
const lower_left_corner = config.origin - horizontal.scale(0.5).data - vertical.scale(0.5).data - forward.data;
return Camera{
.turn_rate = config.turn_rate,
.normal_speed = config.normal_speed,
.sprint_speed = config.sprint_speed,
.movement_speed = config.normal_speed,
.user_input_diabled = config.user_input_diabled,
.viewport_width = viewport_width,
.viewport_height = viewport_height,
.vertical_fov = vertical_fov,
.pitch = za.Quat.identity(),
.yaw = za.Quat.identity(),
.d_camera = Device{
.image_width = image_width,
.image_height = image_height,
.horizontal = horizontal.data,
.vertical = vertical.data,
.lower_left_corner = lower_left_corner,
.origin = config.origin,
.samples_per_pixel = config.samples_per_pixel,
.max_bounce = config.max_bounce + 1, // + 1 so that max bounce of 0 means only primary ray for the user of API ...
},
};
}
/// set camera movement speed to sprint
pub fn activateSprint(self: *Camera) void {
self.movement_speed = self.normal_speed * self.sprint_speed;
}
/// set camera movement speed to normal speed
pub fn disableSprint(self: *Camera) void {
self.movement_speed = self.normal_speed;
}
pub fn setOrigin(self: *Camera, origin: Vec3) void {
self.d_camera.origin = origin;
self.propogatePitchChange();
}
pub fn disableInput(self: *Camera) void {
self.user_input_diabled = true;
}
pub fn enableInput(self: *Camera) void {
self.user_input_diabled = false;
}
/// camera should always be reset after being used
/// programtically to avoid invalid camera state
pub fn reset(self: *Camera) void {
self.enableInput();
self.yaw = za.Quat.identity();
self.pitch = za.Quat.identity();
self.propogatePitchChange();
}
/// Move camera
pub fn translate(self: *Camera, delta_time: f32, by: za.Vec3) void {
if (self.user_input_diabled) return;
const norm = by.norm();
const delta = self.orientation().rotateVec(norm.scale(delta_time * self.movement_speed));
if (std.math.isNan(delta.x())) {
return;
}
self.d_camera.origin += delta.data;
self.propogatePitchChange();
}
pub fn turnPitch(self: *Camera, angle: f32) void {
if (self.user_input_diabled) return;
// Axis angle to quaternion: https://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
const h_angle = angle * self.turn_rate;
const i = @sin(h_angle);
const w = @cos(h_angle);
const prev_pitch = self.pitch;
self.pitch = self.pitch.mul(za.Quat{ .w = w, .x = i, .y = 0.0, .z = 0.0 });
// arbitrary restrict rotation so that camera does not become inversed
const euler_x_rotation = self.pitch.extractEulerAngles().x();
if (@fabs(euler_x_rotation) >= 90) {
self.pitch = prev_pitch;
}
self.propogatePitchChange();
}
pub fn turnYaw(self: *Camera, angle: f32) void {
if (self.user_input_diabled) return;
const h_angle = angle * self.turn_rate;
const j = @sin(h_angle);
const w = @cos(h_angle);
self.yaw = self.yaw.mul(za.Quat{ .w = w, .x = 0.0, .y = j, .z = 0.0 });
self.propogatePitchChange();
}
pub inline fn orientation(self: Camera) za.Quat {
return self.yaw.mul(self.pitch).norm();
}
/// Get byte size of Camera's GPU data
pub inline fn getGpuSize() u64 {
return @sizeOf(Device);
}
inline fn forwardDir(self: Camera) za.Vec3 {
return self.orientation().rotateVec(za.Vec3.new(0, 0, 1));
}
// used to update values that depend on camera orientation
pub inline fn propogatePitchChange(self: *Camera) void {
const forward = self.forwardDir();
const right = za.Vec3.up().cross(forward).norm();
const up = forward.cross(right).norm();
self.d_camera.horizontal = right.scale(self.viewport_width).data;
self.d_camera.vertical = up.scale(self.viewport_height).data;
self.d_camera.lower_left_corner = self.lowerLeftCorner();
}
inline fn lowerLeftCorner(self: Camera) Vec3 {
const @"0.5" = @splat(3, @as(f32, 0.5));
return self.d_camera.origin - self.d_camera.horizontal * @"0.5" - self.d_camera.vertical * @"0.5" - self.forwardDir().data;
}
// uniform Camera, binding: 1
pub const Device = extern struct {
image_width: u32,
image_height: u32,
horizontal: Vec3,
vertical: Vec3,
lower_left_corner: Vec3,
origin: Vec3,
samples_per_pixel: i32,
max_bounce: i32,
};
|
0 | repos/zig_vulkan/src/modules | repos/zig_vulkan/src/modules/voxel_rt/ComputePipeline.zig | const std = @import("std");
const Allocator = std.mem.Allocator;
const vk = @import("vulkan");
const glfw = @import("glfw");
const tracy = @import("ztracy");
const shaders = @import("shaders");
const render = @import("../render.zig");
const Context = render.Context;
const GpuBufferMemory = render.GpuBufferMemory;
const Texture = render.Texture;
const Camera = @import("Camera.zig");
const Sun = @import("Sun.zig");
/// compute shader that draws to a target texture
const ComputePipeline = @This();
// TODO: constant data
// TODO: explicit binding ..
pub const StateConfigs = struct {
uniform_sizes: []const u64,
storage_sizes: []const u64,
};
pub const ImageInfo = struct {
width: f32,
height: f32,
image: vk.Image,
sampler: vk.Sampler,
image_view: vk.ImageView,
};
allocator: Allocator,
pipeline_layout: vk.PipelineLayout,
pipeline: *vk.Pipeline,
command_pool: vk.CommandPool,
command_buffer: vk.CommandBuffer,
queue: vk.Queue,
complete_semaphore: vk.Semaphore,
complete_fence: vk.Fence,
// info about the target image
target_image_info: ImageInfo,
target_descriptor_layout: vk.DescriptorSetLayout,
target_descriptor_pool: vk.DescriptorPool,
target_descriptor_set: vk.DescriptorSet,
// TODO: should be a slice or list. When the sum of a buffer size is greater than 250mb, we create a new buffer
uniform_offsets: []vk.DeviceSize,
storage_offsets: []vk.DeviceSize,
buffers: GpuBufferMemory,
work_group_dim: extern struct {
x: u32,
y: u32,
},
// TODO: descriptor has a lot of duplicate code with init ...
// TODO: refactor descriptor stuff to be configurable (loop array of config objects for buffer stuff)
// TODO: correctness if init fail, clean up resources created with errdefer
/// initialize a compute pipeline, caller must make sure to call deinit, pipeline does not take ownership of target texture,
/// texture should have a lifetime atleast the length of comptute pipeline
pub fn init(allocator: Allocator, ctx: Context, target_image_info: ImageInfo, state_config: StateConfigs) !ComputePipeline {
var self: ComputePipeline = undefined;
self.allocator = allocator;
self.target_image_info = target_image_info;
self.work_group_dim = blk: {
const device_properties = ctx.getPhysicalDeviceProperties();
const dim_size = device_properties.limits.max_compute_work_group_invocations;
const uniform_dim = @floatToInt(u32, @floor(@sqrt(@intToFloat(f64, dim_size))));
break :blk .{
.x = uniform_dim,
.y = uniform_dim / 2,
};
};
// TODO: grab a dedicated compute queue if available https://github.com/Avokadoen/zig_vulkan/issues/163
self.queue = ctx.vkd.getDeviceQueue(ctx.logical_device, ctx.queue_indices.compute, @intCast(u32, 0));
self.uniform_offsets = try allocator.alloc(vk.DeviceSize, state_config.uniform_sizes.len);
errdefer allocator.free(self.uniform_offsets);
self.storage_offsets = try allocator.alloc(vk.DeviceSize, state_config.storage_sizes.len);
errdefer allocator.free(self.storage_offsets);
var buffer_size: u64 = 0;
for (state_config.uniform_sizes, 0..) |size, i| {
self.uniform_offsets[i] = buffer_size;
buffer_size += size;
}
for (state_config.storage_sizes, 0..) |size, i| {
self.storage_offsets[i] = buffer_size;
buffer_size += size;
}
self.buffers = try GpuBufferMemory.init(
ctx,
@intCast(vk.DeviceSize, buffer_size),
.{ .storage_buffer_bit = true, .uniform_buffer_bit = true, .transfer_dst_bit = true },
.{ .device_local_bit = true },
);
const set_count = 1 + state_config.uniform_sizes.len + state_config.storage_sizes.len;
const layout_bindings = try allocator.alloc(vk.DescriptorSetLayoutBinding, set_count);
defer allocator.free(layout_bindings);
self.target_descriptor_layout = blk: {
// target image
layout_bindings[0] = vk.DescriptorSetLayoutBinding{
.binding = 0,
.descriptor_type = .storage_image,
.descriptor_count = 1,
.stage_flags = .{
.compute_bit = true,
},
.p_immutable_samplers = null,
};
for (state_config.uniform_sizes, 0..) |_, i| {
layout_bindings[1 + i] = vk.DescriptorSetLayoutBinding{
.binding = @intCast(u32, 1 + i),
.descriptor_type = .uniform_buffer,
.descriptor_count = 1,
.stage_flags = .{
.compute_bit = true,
},
.p_immutable_samplers = null,
};
}
const index_offset = 1 + state_config.uniform_sizes.len;
for (state_config.storage_sizes, 0..) |_, i| {
layout_bindings[index_offset + i] = vk.DescriptorSetLayoutBinding{
.binding = @intCast(u32, index_offset + i),
.descriptor_type = .storage_buffer,
.descriptor_count = 1,
.stage_flags = .{
.compute_bit = true,
},
.p_immutable_samplers = null,
};
}
const layout_info = vk.DescriptorSetLayoutCreateInfo{
.flags = .{},
.binding_count = @intCast(u32, layout_bindings.len),
.p_bindings = @ptrCast([*]const vk.DescriptorSetLayoutBinding, layout_bindings.ptr),
};
break :blk try ctx.vkd.createDescriptorSetLayout(ctx.logical_device, &layout_info, null);
};
errdefer ctx.vkd.destroyDescriptorSetLayout(ctx.logical_device, self.target_descriptor_layout, null);
const pool_sizes = try allocator.alloc(vk.DescriptorPoolSize, set_count);
defer allocator.free(pool_sizes);
self.target_descriptor_pool = blk: {
pool_sizes[0] = vk.DescriptorPoolSize{
.type = .storage_image,
.descriptor_count = 1,
};
for (state_config.uniform_sizes, 0..) |_, i| {
pool_sizes[1 + i] = vk.DescriptorPoolSize{
.type = .uniform_buffer,
.descriptor_count = 1,
};
}
const index_offset = 1 + state_config.uniform_sizes.len;
for (state_config.storage_sizes, 0..) |_, i| {
pool_sizes[index_offset + i] = vk.DescriptorPoolSize{
.type = .storage_buffer,
.descriptor_count = 1,
};
}
const pool_info = vk.DescriptorPoolCreateInfo{
.flags = .{},
.max_sets = 1,
.pool_size_count = @intCast(u32, pool_sizes.len),
.p_pool_sizes = @ptrCast([*]const vk.DescriptorPoolSize, pool_sizes.ptr),
};
break :blk try ctx.vkd.createDescriptorPool(ctx.logical_device, &pool_info, null);
};
errdefer ctx.vkd.destroyDescriptorPool(ctx.logical_device, self.target_descriptor_pool, null);
{
const descriptor_set_alloc_info = vk.DescriptorSetAllocateInfo{
.descriptor_pool = self.target_descriptor_pool,
.descriptor_set_count = 1,
.p_set_layouts = @ptrCast([*]const vk.DescriptorSetLayout, &self.target_descriptor_layout),
};
try ctx.vkd.allocateDescriptorSets(ctx.logical_device, &descriptor_set_alloc_info, @ptrCast([*]vk.DescriptorSet, &self.target_descriptor_set));
}
{
const buffer_infos = try allocator.alloc(vk.DescriptorBufferInfo, set_count - 1);
defer allocator.free(buffer_infos);
const write_descriptor_sets = try allocator.alloc(vk.WriteDescriptorSet, set_count);
defer allocator.free(write_descriptor_sets);
const image_info = vk.DescriptorImageInfo{
.sampler = self.target_image_info.sampler,
.image_view = self.target_image_info.image_view,
.image_layout = .general,
};
write_descriptor_sets[0] = vk.WriteDescriptorSet{
.dst_set = self.target_descriptor_set,
.dst_binding = 0,
.dst_array_element = 0,
.descriptor_count = 1,
.descriptor_type = .storage_image,
.p_image_info = @ptrCast([*]const vk.DescriptorImageInfo, &image_info),
.p_buffer_info = undefined,
.p_texel_buffer_view = undefined,
};
for (state_config.uniform_sizes, 0..) |size, i| {
buffer_infos[i] = vk.DescriptorBufferInfo{
.buffer = self.buffers.buffer,
.offset = self.uniform_offsets[i],
.range = size,
};
write_descriptor_sets[i + 1] = vk.WriteDescriptorSet{
.dst_set = self.target_descriptor_set,
.dst_binding = @intCast(u32, i + 1),
.dst_array_element = 0,
.descriptor_count = 1,
.descriptor_type = .uniform_buffer,
.p_image_info = undefined,
.p_buffer_info = @ptrCast([*]const vk.DescriptorBufferInfo, &buffer_infos[i]),
.p_texel_buffer_view = undefined,
};
}
// store any user defined shader buffers
for (state_config.storage_sizes, 0..) |size, i| {
const index = 1 + state_config.uniform_sizes.len + i;
// descriptor for buffer info
buffer_infos[index - 1] = vk.DescriptorBufferInfo{
.buffer = self.buffers.buffer,
.offset = self.storage_offsets[i],
.range = size,
};
write_descriptor_sets[index] = vk.WriteDescriptorSet{
.dst_set = self.target_descriptor_set,
.dst_binding = @intCast(u32, index),
.dst_array_element = 0,
.descriptor_count = 1,
.descriptor_type = .storage_buffer,
.p_image_info = undefined,
.p_buffer_info = @ptrCast([*]const vk.DescriptorBufferInfo, &buffer_infos[index - 1]),
.p_texel_buffer_view = undefined,
};
}
ctx.vkd.updateDescriptorSets(
ctx.logical_device,
@intCast(u32, write_descriptor_sets.len),
write_descriptor_sets.ptr,
0,
undefined,
);
}
self.pipeline_layout = blk: {
const push_constant_ranges = [_]vk.PushConstantRange{.{
.stage_flags = .{ .compute_bit = true },
.offset = 0,
.size = @sizeOf(Camera.Device) + @sizeOf(Sun.Device),
}};
const pipeline_layout_info = vk.PipelineLayoutCreateInfo{
.flags = .{},
.set_layout_count = 1,
.p_set_layouts = @ptrCast([*]vk.DescriptorSetLayout, &self.target_descriptor_layout),
.push_constant_range_count = push_constant_ranges.len,
.p_push_constant_ranges = &push_constant_ranges,
};
break :blk try ctx.createPipelineLayout(pipeline_layout_info);
};
self.pipeline = blk: {
const SpecType = @TypeOf(self.work_group_dim);
const spec_map = [_]vk.SpecializationMapEntry{ .{
.constant_id = 0,
.offset = @offsetOf(SpecType, "x"),
.size = @sizeOf(u32),
}, .{
.constant_id = 1,
.offset = @offsetOf(SpecType, "y"),
.size = @sizeOf(u32),
} };
const specialization = vk.SpecializationInfo{
.map_entry_count = spec_map.len,
.p_map_entries = &spec_map,
.data_size = @sizeOf(SpecType),
.p_data = @ptrCast(*const anyopaque, &self.work_group_dim),
};
const module_create_info = vk.ShaderModuleCreateInfo{
.flags = .{},
.p_code = @ptrCast([*]const u32, &shaders.brick_raytracer_comp_spv),
.code_size = shaders.brick_raytracer_comp_spv.len,
};
const module = try ctx.vkd.createShaderModule(ctx.logical_device, &module_create_info, null);
const stage = vk.PipelineShaderStageCreateInfo{
.flags = .{},
.stage = .{ .compute_bit = true },
.module = module,
.p_name = "main",
.p_specialization_info = @ptrCast(?*const vk.SpecializationInfo, &specialization),
};
defer ctx.destroyShaderModule(stage.module);
// TOOD: read on defer_compile_bit_nv
const pipeline_info = vk.ComputePipelineCreateInfo{
.flags = .{},
.stage = stage,
.layout = self.pipeline_layout,
.base_pipeline_handle = .null_handle, // TODO: GfxPipeline?
.base_pipeline_index = -1,
};
break :blk try ctx.createComputePipeline(allocator, pipeline_info);
};
{
const pool_info = vk.CommandPoolCreateInfo{
.flags = .{ .transient_bit = true },
.queue_family_index = ctx.queue_indices.compute,
};
self.command_pool = try ctx.vkd.createCommandPool(ctx.logical_device, &pool_info, null);
self.command_buffer = try render.pipeline.createCmdBuffer(ctx, self.command_pool);
}
errdefer {
ctx.vkd.freeCommandBuffers(
ctx.logical_device,
self.command_pool,
@intCast(u32, 1),
@ptrCast([*]const vk.CommandBuffer, &self.command_buffer),
);
ctx.vkd.destroyCommandPool(ctx.logical_device, self.command_pool, null);
}
{
const semaphore_info = vk.SemaphoreCreateInfo{ .flags = .{} };
self.complete_semaphore = try ctx.vkd.createSemaphore(ctx.logical_device, &semaphore_info, null);
}
errdefer ctx.vkd.destroySemaphore(ctx.logical_device, self.complete_semaphore, null);
{
const fence_info = vk.FenceCreateInfo{
.flags = .{
.signaled_bit = true,
},
};
self.complete_fence = try ctx.vkd.createFence(ctx.logical_device, &fence_info, null);
}
return ComputePipeline{
.allocator = self.allocator,
.pipeline_layout = self.pipeline_layout,
.pipeline = self.pipeline,
.command_pool = self.command_pool,
.command_buffer = self.command_buffer,
.queue = self.queue,
.complete_semaphore = self.complete_semaphore,
.complete_fence = self.complete_fence,
.target_image_info = self.target_image_info,
.target_descriptor_layout = self.target_descriptor_layout,
.target_descriptor_pool = self.target_descriptor_pool,
.target_descriptor_set = self.target_descriptor_set,
.uniform_offsets = self.uniform_offsets,
.storage_offsets = self.storage_offsets,
.buffers = self.buffers,
.work_group_dim = self.work_group_dim,
};
}
pub fn deinit(self: ComputePipeline, ctx: Context) void {
// wait for all fences
_ = ctx.vkd.waitForFences(
ctx.logical_device,
1,
@ptrCast([*]const vk.Fence, &self.complete_fence),
vk.TRUE,
std.math.maxInt(u64),
) catch |err| std.debug.print("failed to wait for gfx fence, err: {any}", .{err});
ctx.vkd.freeCommandBuffers(
ctx.logical_device,
self.command_pool,
@intCast(u32, 1),
@ptrCast([*]const vk.CommandBuffer, &self.command_buffer),
);
ctx.vkd.destroyCommandPool(ctx.logical_device, self.command_pool, null);
self.allocator.free(self.uniform_offsets);
self.allocator.free(self.storage_offsets);
self.buffers.deinit(ctx);
ctx.vkd.destroySemaphore(ctx.logical_device, self.complete_semaphore, null);
ctx.vkd.destroyFence(ctx.logical_device, self.complete_fence, null);
ctx.vkd.destroyDescriptorSetLayout(ctx.logical_device, self.target_descriptor_layout, null);
ctx.vkd.destroyDescriptorPool(ctx.logical_device, self.target_descriptor_pool, null);
ctx.destroyPipelineLayout(self.pipeline_layout);
ctx.destroyPipeline(self.pipeline);
self.allocator.destroy(self.pipeline);
}
pub inline fn dispatch(self: *ComputePipeline, ctx: Context, camera: Camera, sun: Sun) !vk.Semaphore {
{
const wait_compute_zone = tracy.ZoneN(@src(), "idle wait compute");
defer wait_compute_zone.End();
// wait for previous compute dispatch to complete
_ = try ctx.vkd.waitForFences(
ctx.logical_device,
1,
@ptrCast([*]const vk.Fence, &self.complete_fence),
vk.TRUE,
std.math.maxInt(u64),
);
try ctx.vkd.resetFences(
ctx.logical_device,
1,
@ptrCast([*]const vk.Fence, &self.complete_fence),
);
}
try ctx.vkd.resetCommandPool(ctx.logical_device, self.command_pool, .{});
try self.recordCommandBuffer(ctx, camera, sun);
{
@setRuntimeSafety(false);
var semo_null_ptr: [*c]const vk.Semaphore = null;
var wait_null_ptr: [*c]const vk.PipelineStageFlags = null;
// perform the compute ray tracing, draw to target texture
const compute_submit_info = vk.SubmitInfo{
.wait_semaphore_count = 0,
.p_wait_semaphores = semo_null_ptr,
.p_wait_dst_stage_mask = wait_null_ptr,
.command_buffer_count = 1,
.p_command_buffers = @ptrCast([*]const vk.CommandBuffer, &self.command_buffer),
.signal_semaphore_count = 1,
.p_signal_semaphores = @ptrCast([*]const vk.Semaphore, &self.complete_semaphore),
};
try ctx.vkd.queueSubmit(
self.queue,
1,
@ptrCast([*]const vk.SubmitInfo, &compute_submit_info),
self.complete_fence,
);
}
return self.complete_semaphore;
}
pub fn recordCommandBuffer(self: ComputePipeline, ctx: Context, camera: Camera, sun: Sun) !void {
const draw_zone = tracy.ZoneN(@src(), "compute record");
defer draw_zone.End();
const command_begin_info = vk.CommandBufferBeginInfo{
.flags = .{
.one_time_submit_bit = true,
},
.p_inheritance_info = null,
};
try ctx.vkd.beginCommandBuffer(self.command_buffer, &command_begin_info);
ctx.vkd.cmdBindPipeline(self.command_buffer, vk.PipelineBindPoint.compute, self.pipeline.*);
// push camera data as a push constant
ctx.vkd.cmdPushConstants(
self.command_buffer,
self.pipeline_layout,
.{ .compute_bit = true },
0,
@sizeOf(Camera.Device),
&camera.d_camera,
);
// push sun data as a push constant
ctx.vkd.cmdPushConstants(
self.command_buffer,
self.pipeline_layout,
.{ .compute_bit = true },
@sizeOf(Camera.Device),
@sizeOf(Sun.Device),
&sun.device_data,
);
const image_barrier = vk.ImageMemoryBarrier{
.src_access_mask = .{ .shader_read_bit = true },
.dst_access_mask = .{ .shader_write_bit = true },
.old_layout = .shader_read_only_optimal,
.new_layout = .general,
.src_queue_family_index = ctx.queue_indices.graphics,
.dst_queue_family_index = ctx.queue_indices.compute,
.image = self.target_image_info.image,
.subresource_range = .{
.aspect_mask = .{ .color_bit = true },
.base_mip_level = 0,
.level_count = 1,
.base_array_layer = 0,
.layer_count = 1,
},
};
ctx.vkd.cmdPipelineBarrier(
self.command_buffer,
.{ .fragment_shader_bit = true },
.{ .compute_shader_bit = true },
.{},
0,
undefined,
0,
undefined,
1,
@ptrCast([*]const vk.ImageMemoryBarrier, &image_barrier),
);
// bind target texture
ctx.vkd.cmdBindDescriptorSets(
self.command_buffer,
.compute,
self.pipeline_layout,
0,
1,
@ptrCast([*]const vk.DescriptorSet, &self.target_descriptor_set),
0,
undefined,
);
const x_dispatch = @ceil(self.target_image_info.width / @intToFloat(f32, self.work_group_dim.x));
const y_dispatch = @ceil(self.target_image_info.height / @intToFloat(f32, self.work_group_dim.y));
ctx.vkd.cmdDispatch(self.command_buffer, @floatToInt(u32, x_dispatch), @floatToInt(u32, y_dispatch), 1);
try ctx.vkd.endCommandBuffer(self.command_buffer);
}
|
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