text: /*
      SDL_main.c, placed in the public domain by Sam Lantinga  4/13/98
  
      The WinMain function -- calls your program's main() function
  */
  
  #include <stdio.h>
  #include <stdlib.h>
  
  #define WIN32_LEAN_AND_MEAN
  #include <windows.h>
  
  #ifdef _WIN32_WCE
  # define DIR_SEPERATOR TEXT("\\")
  # undef _getcwd
  # define _getcwd(str,len)	wcscpy(str,TEXT(""))
  # define setbuf(f,b)
  # define setvbuf(w,x,y,z)
  # define fopen		_wfopen
  # define freopen	_wfreopen
  # define remove(x)	DeleteFile(x)
  #else
  # define DIR_SEPERATOR TEXT("/")
  # include <direct.h>
  #endif
  
  /* Include the SDL main definition header */
  #include "SDL.h"
  #include "SDL_main.h"
  
  #ifdef main
  # ifndef _WIN32_WCE_EMULATION
  #  undef main
  # endif /* _WIN32_WCE_EMULATION */
  #endif /* main */
  
  /* The standard output files */
  #define STDOUT_FILE	TEXT("stdout.txt")
  #define STDERR_FILE	TEXT("stderr.txt")
  
  /* Set a variable to tell if the stdio redirect has been enabled. */
  static int stdioRedirectEnabled = 0;
  
  #ifdef _WIN32_WCE
    static wchar_t stdoutPath[MAX_PATH];
    static wchar_t stderrPath[MAX_PATH];
  #else
    static char stdoutPath[MAX_PATH];
    static char stderrPath[MAX_PATH];
  #endif
  
  #if defined(_WIN32_WCE) && _WIN32_WCE < 300
  /* seems to be undefined in Win CE although in online help */
  #define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
  #endif /* _WIN32_WCE < 300 */
  
  static void UnEscapeQuotes( char *arg )
  {
  	char *last = NULL;
  
  	while( *arg ) {
  		if( *arg == '"' && *last == '\\' ) {
  			char *c_curr = arg;
  			char *c_last = last;
  
  			while( *c_curr ) {
  				*c_last = *c_curr;
  				c_last = c_curr;
  				c_curr++;
  			}
  			*c_last = '\0';
  		}
  		last = arg;
  		arg++;
  	}
  }
  
  /* Parse a command line buffer into arguments */
  static int ParseCommandLine(char *cmdline, char **argv)
  {
  	char *bufp;
  	char *lastp = NULL;
  	int argc, last_argc;
  
  	argc = last_argc = 0;
  	for ( bufp = cmdline; *bufp; ) {
  		/* Skip leading whitespace */
  		while ( isspace(*bufp) ) {
  			++bufp;
  		}
  		/* Skip over argument */
  		if ( *bufp == '"' ) {
  			++bufp;
  			if ( *bufp ) {
  				if ( argv ) {
  					argv[argc] = bufp;
  				}
  				++argc;
  			}
  			/* Skip over word */
  			while ( *bufp && ( *bufp != '"' || (lastp && *lastp == '\\') ) ) {
  				lastp = bufp;
  				++bufp;
  			}
  		} else {
  			if ( *bufp ) {
  				if ( argv ) {
  					argv[argc] = bufp;
  				}
  				++argc;
  			}
  			/* Skip over word */
  			while ( *bufp && ! isspace(*bufp) ) {
  				++bufp;
  			}
  		}
  		if ( *bufp ) {
  			if ( argv ) {
  				*bufp = '\0';
  			}
  			++bufp;
  		}
  
  		/* Strip out \ from \" sequences */
  		if( argv && last_argc != argc ) {
  			UnEscapeQuotes( argv[last_argc] );
  		}
  		last_argc = argc;
  	}
  	if ( argv ) {
  		argv[argc] = NULL;
  	}
  	return(argc);
  }
  
  /* Show an error message */
  static void ShowError(const char *title, const char *message)
  {
  /* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
  #ifdef USE_MESSAGEBOX
  	MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK);
  #else
  	fprintf(stderr, "%s: %s\n", title, message);
  #endif
  }
  
  /* Pop up an out of memory message, returns to Windows */
  static BOOL OutOfMemory(void)
  {
  	ShowError("Fatal Error", "Out of memory - aborting");
  	return FALSE;
  }
  
  /* SDL_Quit() shouldn't be used with atexit() directly because
     calling conventions may differ... */
  static void cleanup(void)
  {
  	SDL_Quit();
  }
  
  /* Remove the output files if there was no output written */
  static void cleanup_output(void) {
  	FILE *file;
  	int empty;
  
  	/* Flush the output in case anything is queued */
  	fclose(stdout);
  	fclose(stderr);
  
  	/* Without redirection we're done */
  	if (!stdioRedirectEnabled) {
  		return;
  	}
  
  	/* See if the files have any output in them */
  	if ( stdoutPath[0] ) {
  		file = fopen(stdoutPath, (char*)TEXT("rb"));
  		if ( file ) {
  			empty = (fgetc(file) == EOF) ? 1 : 0;
  			fclose(file);
  			if ( empty ) {
  				remove(stdoutPath);
  			}
  		}
  	}
  	if ( stderrPath[0] ) {
  		file = fopen(stderrPath, (char*)TEXT("rb"));
  		if ( file ) {
  			empty = (fgetc(file) == EOF) ? 1 : 0;
  			fclose(file);
  			if ( empty ) {
  				remove(stderrPath);
  			}
  		}
  	}
  }
  
  /* converts wide char to char */
  static char* WChartoChar(const wchar_t* str, unsigned int page)
  {
      int size; 
      char* retStr;
  	size = WideCharToMultiByte(page, 0, str, -1, NULL, 0, NULL, NULL);
  	retStr = (char *)calloc(sizeof(char), size);
      WideCharToMultiByte(page, 0, str, -1, retStr, size, NULL, NULL);
      return retStr;
  }
  
  /* Redirect the output (stdout and stderr) to a file */
  static void redirect_output(void)
  {
  	DWORD pathlen;
  	FILE *newfp;
  #ifdef _WIN32_WCE
  	wchar_t path[MAX_PATH];
  	pathlen = GetModuleFileName(NULL, (LPWSTR)path, SDL_arraysize(path));
  #else
  	char path[MAX_PATH];
  	pathlen = GetModuleFileNameA(NULL, (char*)path, SDL_arraysize(path));
  #endif
  	while ( pathlen > 0 && path[pathlen] != '\\' ) {
  		--pathlen;
  	}
  	path[pathlen] = '\0';
  
  #ifdef _WIN32_WCE
  	wcsncpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
  	wcsncat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
  #else
  	SDL_strlcpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
  	SDL_strlcat( stdoutPath, (char*)DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
  #endif
  
  	/* Redirect standard input and standard output */
  	newfp = freopen(stdoutPath, (char*)TEXT("w"), stdout);
  
  #ifndef _WIN32_WCE
  	if ( newfp == NULL ) {	/* This happens on NT */
  #if !defined(stdout)
  		stdout = fopen(stdoutPath, TEXT("w"));
  #else
  		newfp = fopen(stdoutPath, (char*)TEXT("w"));
  		if ( newfp ) {
  			*stdout = *newfp;
  		}
  #endif
  	}
  #endif /* _WIN32_WCE */
  
  #ifdef _WIN32_WCE
  	wcsncpy( stderrPath, path, SDL_arraysize(stdoutPath) );
  	wcsncat( stderrPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
  #else
  	SDL_strlcpy( stderrPath, path, SDL_arraysize(stderrPath) );
  	SDL_strlcat( stderrPath, (char*)DIR_SEPERATOR STDERR_FILE, SDL_arraysize(stderrPath) );
  #endif
  
  	newfp = freopen(stderrPath, (char*)TEXT("w"), stderr);
  #ifndef _WIN32_WCE
  	if ( newfp == NULL ) {	/* This happens on NT */
  #if !defined(stderr)
  		stderr = fopen(stderrPath, TEXT("w"));
  #else
  		newfp = fopen(stderrPath, (char*)TEXT("w"));
  		if ( newfp ) {
  			*stderr = *newfp;
  		}
  #endif
  	}
  #endif /* _WIN32_WCE */
  
  	setvbuf(stdout, NULL, _IOLBF, BUFSIZ);	/* Line buffered */
  	setbuf(stderr, NULL);			/* No buffering */
  	stdioRedirectEnabled = 1;
  }
  
  #if defined(_MSC_VER) && !defined(_WIN32_WCE)
  /* The VC++ compiler needs main defined */
  #define console_main main
  #endif
  
  /* This is where execution begins [console apps] */
  int console_main(int argc, char *argv[])
  {
  	int status;
  
  	/* Load SDL dynamic link library */
  	if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) {
  		ShowError("WinMain() error", SDL_GetError());
  		return(FALSE);
  	}
  	atexit(cleanup_output);
  	atexit(cleanup);
  
  	/* Sam:
  	   We still need to pass in the application handle so that
  	   DirectInput will initialize properly when SDL_RegisterApp()
  	   is called later in the video initialization.
  	 */
  	SDL_SetModuleHandle(GetModuleHandle(NULL));
  
  	/* Run the application main() code */
  	status = SDL_main(argc, argv);
  
  	/* Exit cleanly, calling atexit() functions */
  	exit(status);
  
  	/* Hush little compiler, don't you cry... */
  	return 0;
  }
  
  /* This is where execution begins [windowed apps] */
  #ifdef _WIN32_WCE
  int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw)
  #else
  int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
  #endif
  {
  	HMODULE handle;
  	char **argv;
  	int argc;
  	char *cmdline;
  	char *env_str;
  #ifdef _WIN32_WCE
  	wchar_t *bufp;
  	int nLen;
  #else
  	char *bufp;
  	size_t nLen;
  #endif
  
  	/* Start up DDHELP.EXE before opening any files, so DDHELP doesn't
  	   keep them open.  This is a hack.. hopefully it will be fixed
  	   someday.  DDHELP.EXE starts up the first time DDRAW.DLL is loaded.
  	 */
  	handle = LoadLibrary(TEXT("DDRAW.DLL"));
  	if ( handle != NULL ) {
  		FreeLibrary(handle);
  	}
  
  	/* Check for stdio redirect settings and do the redirection */
  	if ((env_str = SDL_getenv("SDL_STDIO_REDIRECT"))) {
  		if (SDL_atoi(env_str)) {
  			redirect_output();
  		}
  	}
  #ifndef NO_STDIO_REDIRECT
  	else {
  		redirect_output();
  	}
  #endif
  
  #ifdef _WIN32_WCE
  	nLen = wcslen(szCmdLine)+128+1;
  	bufp = SDL_stack_alloc(wchar_t, nLen*2);
  	wcscpy (bufp, TEXT("\""));
  	GetModuleFileName(NULL, bufp+1, 128-3);
  	wcscpy (bufp+wcslen(bufp), TEXT("\" "));
  	wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp));
  	nLen = wcslen(bufp)+1;
  	cmdline = SDL_stack_alloc(char, nLen);
  	if ( cmdline == NULL ) {
  		return OutOfMemory();
  	}
  	WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
  #else
  	/* Grab the command line */
  	bufp = WChartoChar(GetCommandLineW(),CP_UTF8);
  	nLen = SDL_strlen(bufp)+1;
  	//cmdline = SDL_stack_alloc(char, nLen);
  	cmdline = (char*)calloc(sizeof(char), nLen);
  	if ( cmdline == NULL ) {
  		return OutOfMemory();
  	}
  	SDL_strlcpy(cmdline, bufp, nLen);
  	free(bufp);
  #endif
  
  	/* Parse it into argv and argc */
  	argc = ParseCommandLine(cmdline, NULL);
  	//argv = SDL_stack_alloc(char*, argc+1);
  	argv = (char**)calloc(sizeof(char*), argc+1);
  	if ( argv == NULL ) {
  		return OutOfMemory();
  	}
  	ParseCommandLine(cmdline, argv);
  
  	/* Run the main program (after a little SDL initialization) */
  	console_main(argc, argv);
  
  	/* Hush little compiler, don't you cry... */
  	return 0;
  }
  