text: #ifndef __khrplatform_h_
  #define __khrplatform_h_
  
  /*
  ** Copyright (c) 2008-2009 The Khronos Group Inc.
  **
  ** Permission is hereby granted, free of charge, to any person obtaining a
  ** copy of this software and/or associated documentation files (the
  ** "Materials"), to deal in the Materials without restriction, including
  ** without limitation the rights to use, copy, modify, merge, publish,
  ** distribute, sublicense, and/or sell copies of the Materials, and to
  ** permit persons to whom the Materials are 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 Materials.
  **
  ** THE MATERIALS ARE 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
  ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
  */
  
  /* Khronos platform-specific types and definitions.
   *
   * $Revision: 1.5 $ on $Date: 2010/06/03 16:51:55 $
   *
   * Adopters may modify this file to suit their platform. Adopters are
   * encouraged to submit platform specific modifications to the Khronos
   * group so that they can be included in future versions of this file.
   * Please submit changes by sending them to the public Khronos Bugzilla
   * (http://khronos.org/bugzilla) by filing a bug against product
   * "Khronos (general)" component "Registry".
   *
   * A predefined template which fills in some of the bug fields can be
   * reached using http://tinyurl.com/khrplatform-h-bugreport, but you
   * must create a Bugzilla login first.
   *
   *
   * See the Implementer's Guidelines for information about where this file
   * should be located on your system and for more details of its use:
   *    http://www.khronos.org/registry/implementers_guide.pdf
   *
   * This file should be included as
   *        #include <KHR/khrplatform.h>
   * by Khronos client API header files that use its types and defines.
   *
   * The types in khrplatform.h should only be used to define API-specific types.
   *
   * Types defined in khrplatform.h:
   *    khronos_int8_t              signed   8  bit
   *    khronos_uint8_t             unsigned 8  bit
   *    khronos_int16_t             signed   16 bit
   *    khronos_uint16_t            unsigned 16 bit
   *    khronos_int32_t             signed   32 bit
   *    khronos_uint32_t            unsigned 32 bit
   *    khronos_int64_t             signed   64 bit
   *    khronos_uint64_t            unsigned 64 bit
   *    khronos_intptr_t            signed   same number of bits as a pointer
   *    khronos_uintptr_t           unsigned same number of bits as a pointer
   *    khronos_ssize_t             signed   size
   *    khronos_usize_t             unsigned size
   *    khronos_float_t             signed   32 bit floating point
   *    khronos_time_ns_t           unsigned 64 bit time in nanoseconds
   *    khronos_utime_nanoseconds_t unsigned time interval or absolute time in
   *                                         nanoseconds
   *    khronos_stime_nanoseconds_t signed time interval in nanoseconds
   *    khronos_boolean_enum_t      enumerated boolean type. This should
   *      only be used as a base type when a client API's boolean type is
   *      an enum. Client APIs which use an integer or other type for
   *      booleans cannot use this as the base type for their boolean.
   *
   * Tokens defined in khrplatform.h:
   *
   *    KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
   *
   *    KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
   *    KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
   *
   * Calling convention macros defined in this file:
   *    KHRONOS_APICALL
   *    KHRONOS_APIENTRY
   *    KHRONOS_APIATTRIBUTES
   *
   * These may be used in function prototypes as:
   *
   *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
   *                                  int arg1,
   *                                  int arg2) KHRONOS_APIATTRIBUTES;
   */
  
  /*-------------------------------------------------------------------------
   * Definition of KHRONOS_APICALL
   *-------------------------------------------------------------------------
   * This precedes the return type of the function in the function prototype.
   */
  
  #if (defined(_WIN32) || defined(__VC32__)) && !defined(__SCITECH_SNAP__) && !defined(__WINSCW__)
  #   if defined (_DLL_EXPORTS)
  #       define KHRONOS_APICALL __declspec(dllexport)
  #   else
  #       define KHRONOS_APICALL __declspec(dllimport)
  #   endif
  #elif defined (__SYMBIAN32__)
  #   if defined (__GCC32__)
  #       define KHRONOS_APICALL __declspec(dllexport)
  #   else
  #       define KHRONOS_APICALL IMPORT_C
  #   endif
  #else
  #   define KHRONOS_APICALL
  #endif
  
  /*-------------------------------------------------------------------------
   * Definition of KHRONOS_APIENTRY
   *-------------------------------------------------------------------------
   * This follows the return type of the function  and precedes the function
   * name in the function prototype.
   */
  #if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) && !defined(__WINSCW__)
      /* Win32 but not WinCE */
  #   define KHRONOS_APIENTRY __stdcall
  #else
  #   define KHRONOS_APIENTRY
  #endif
  
  /*-------------------------------------------------------------------------
   * Definition of KHRONOS_APIATTRIBUTES
   *-------------------------------------------------------------------------
   * This follows the closing parenthesis of the function prototype arguments.
   */
  #if defined (__ARMCC_2__)
  #define KHRONOS_APIATTRIBUTES __softfp
  #else
  #define KHRONOS_APIATTRIBUTES
  #endif
  
  /*-------------------------------------------------------------------------
   * basic type definitions
   *-----------------------------------------------------------------------*/
  #if defined(__SYMBIAN32__)
  
  #include <e32def.h>
  
  typedef TInt32                 khronos_int32_t;
  typedef TUint32                khronos_uint32_t;
  typedef TInt64                 khronos_int64_t;
  typedef TUint64                khronos_uint64_t;
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  #elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
  
  
  /*
   * Using <stdint.h>
   */
  #include <stdint.h>
  typedef int32_t                 khronos_int32_t;
  typedef uint32_t                khronos_uint32_t;
  typedef int64_t                 khronos_int64_t;
  typedef uint64_t                khronos_uint64_t;
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  #elif defined(__VMS ) || defined(__sgi)
  
  /*
   * Using <inttypes.h>
   */
  #include <inttypes.h>
  typedef int32_t                 khronos_int32_t;
  typedef uint32_t                khronos_uint32_t;
  typedef int64_t                 khronos_int64_t;
  typedef uint64_t                khronos_uint64_t;
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  #elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
  
  /*
   * Win32
   */
  typedef __int32                 khronos_int32_t;
  typedef unsigned __int32        khronos_uint32_t;
  typedef __int64                 khronos_int64_t;
  typedef unsigned __int64        khronos_uint64_t;
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  #elif defined(__sun__) || defined(__digital__)
  
  /*
   * Sun or Digital
   */
  typedef int                     khronos_int32_t;
  typedef unsigned int            khronos_uint32_t;
  #if defined(__arch64__) || defined(_LP64)
  typedef long int                khronos_int64_t;
  typedef unsigned long int       khronos_uint64_t;
  #else
  typedef long long int           khronos_int64_t;
  typedef unsigned long long int  khronos_uint64_t;
  #endif /* __arch64__ */
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  #elif defined(_UITRON_)
  
  /*
   * uITRON
   */
  typedef signed int              khronos_int32_t;
  typedef unsigned int            khronos_uint32_t;
  typedef long long               khronos_int64_t;
  typedef unsigned long long      khronos_uint64_t;
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  
  #elif 0
  
  /*
   * Hypothetical platform with no float or int64 support
   */
  typedef int                     khronos_int32_t;
  typedef unsigned int            khronos_uint32_t;
  #define KHRONOS_SUPPORT_INT64   0
  #define KHRONOS_SUPPORT_FLOAT   0
  
  #else
  
  /*
   * Generic fallback
   */
  #include <stdint.h>
  typedef int32_t                 khronos_int32_t;
  typedef uint32_t                khronos_uint32_t;
  typedef int64_t                 khronos_int64_t;
  typedef uint64_t                khronos_uint64_t;
  #define KHRONOS_SUPPORT_INT64   1
  #define KHRONOS_SUPPORT_FLOAT   1
  
  #endif
  
  
  /*
   * Types that are (so far) the same on all platforms
   */
  typedef signed   char          khronos_int8_t;
  typedef unsigned char          khronos_uint8_t;
  typedef signed   short int     khronos_int16_t;
  typedef unsigned short int     khronos_uint16_t;
  typedef signed   long  int     khronos_intptr_t;
  typedef unsigned long  int     khronos_uintptr_t;
  typedef signed   long  int     khronos_ssize_t;
  typedef unsigned long  int     khronos_usize_t;
  
  #if KHRONOS_SUPPORT_FLOAT
  /*
   * Float type
   */
  typedef          float         khronos_float_t;
  #endif
  
  #if KHRONOS_SUPPORT_INT64
  /* Time types
   *
   * These types can be used to represent a time interval in nanoseconds or
   * an absolute Unadjusted System Time.  Unadjusted System Time is the number
   * of nanoseconds since some arbitrary system event (e.g. since the last
   * time the system booted).  The Unadjusted System Time is an unsigned
   * 64 bit value that wraps back to 0 every 584 years.  Time intervals
   * may be either signed or unsigned.
   */
  typedef khronos_uint64_t       khronos_utime_nanoseconds_t;
  typedef khronos_int64_t        khronos_stime_nanoseconds_t;
  #endif
  
  /*
   * Dummy value used to pad enum types to 32 bits.
   */
  #ifndef KHRONOS_MAX_ENUM
  #define KHRONOS_MAX_ENUM 0x7FFFFFFF
  #endif
  
  /*
   * Enumerated boolean type
   *
   * Values other than zero should be considered to be true.  Therefore
   * comparisons should not be made against KHRONOS_TRUE.
   */
  typedef enum {
      KHRONOS_FALSE = 0,
      KHRONOS_TRUE  = 1,
      KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
  } khronos_boolean_enum_t;
  
  #endif /* __khrplatform_h_ */
  