#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: * 67a3e0864c2d75ea5287b9f3d2eb74a745936692 * * 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 … #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 … #elif defined (__SYMBIAN32__) #define KHRONOS_APICALL … #elif defined(__ANDROID__) #define KHRONOS_APICALL … #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 … #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 … #else #define KHRONOS_APIATTRIBUTES #endif /*------------------------------------------------------------------------- * basic type definitions *-----------------------------------------------------------------------*/ #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) /* * Using <stdint.h> */ #include <stdint.h> khronos_int32_t; khronos_uint32_t; khronos_int64_t; khronos_uint64_t; #define KHRONOS_SUPPORT_INT64 … #define KHRONOS_SUPPORT_FLOAT … /* * To support platform where unsigned long cannot be used interchangeably with * inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t. * Ideally, we could just use (u)intptr_t everywhere, but this could result in * ABI breakage if khronos_uintptr_t is changed from unsigned long to * unsigned long long or similar (this results in different C++ name mangling). * To avoid changes for existing platforms, we restrict usage of intptr_t to * platforms where the size of a pointer is larger than the size of long. */ #if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__) #if __SIZEOF_POINTER__ > __SIZEOF_LONG__ #define KHRONOS_USE_INTPTR_T #endif #endif #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 … #define KHRONOS_SUPPORT_FLOAT … #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 … #define KHRONOS_SUPPORT_FLOAT … #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 … #define KHRONOS_SUPPORT_FLOAT … #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 … #define KHRONOS_SUPPORT_FLOAT … #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 … #define KHRONOS_SUPPORT_FLOAT … #endif /* * Types that are (so far) the same on all platforms */ khronos_int8_t; khronos_uint8_t; khronos_int16_t; 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 KHRONOS_USE_INTPTR_T typedef intptr_t khronos_intptr_t; typedef uintptr_t khronos_uintptr_t; #elif defined(_WIN64) typedef signed long long int khronos_intptr_t; typedef unsigned long long int khronos_uintptr_t; #else khronos_intptr_t; khronos_uintptr_t; #endif #if defined(_WIN64) typedef signed long long int khronos_ssize_t; typedef unsigned long long int khronos_usize_t; #else khronos_ssize_t; khronos_usize_t; #endif #if KHRONOS_SUPPORT_FLOAT /* * Float type */ 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. */ khronos_utime_nanoseconds_t; khronos_stime_nanoseconds_t; #endif /* * Dummy value used to pad enum types to 32 bits. */ #ifndef KHRONOS_MAX_ENUM #define KHRONOS_MAX_ENUM … #endif /* * Enumerated boolean type * * Values other than zero should be considered to be true. Therefore * comparisons should not be made against KHRONOS_TRUE. */ khronos_boolean_enum_t; #endif /* __khrplatform_h_ */
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