#ifndef __khrplatform_h_
#define __khrplatform_h_
/*
* * Copyright ( c ) 2008 - 2018 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.
*
* The master copy of khrplatform . h is maintained in the Khronos EGL
* Registry repository at https : //github.com/KhronosGroup/EGL-Registry
* The last semantic modification to khrplatform . h was at commit ID :
* 67 a3e0864c2d75ea5287b9f3d2eb74a745936692
*
* 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 filing pull requests or issues on
* the EGL Registry repository linked above .
*
*
* 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 ;
*/
#if defined (__SCITECH_SNAP__) && !defined (KHRONOS_STATIC)
# define KHRONOS_STATIC 1
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APICALL
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* This precedes the return type of the function in the function prototype .
*/
#if defined (KHRONOS_STATIC)
/* If the preprocessor constant KHRONOS_STATIC is defined, make the
* header compatible with static linking. */
# define KHRONOS_APICALL
#elif defined (_WIN32)
# define KHRONOS_APICALL __declspec(dllimport)
#elif defined (__SYMBIAN32__)
# define KHRONOS_APICALL IMPORT_C
#elif defined (__ANDROID__)
# define KHRONOS_APICALL __attribute__((visibility("default" )))
#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__)
/* 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 (__STDC_VERSION__) && __STDC_VERSION__ >= 199901 L) || 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 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;
/*
* Types that differ between LLP64 and LP64 architectures - in LLP64 ,
* pointers are 64 bits , but ' long ' is still 32 bits . Win64 appears
* to be the only LLP64 architecture in current use .
*/
#ifdef _WIN64
typedef signed long long int khronos_intptr_t;
typedef unsigned long long int khronos_uintptr_t;
typedef signed long long int khronos_ssize_t;
typedef unsigned long long int khronos_usize_t;
#else
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;
#endif
#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 0 x7FFFFFFF
#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_ */
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