1#ifndef __khrplatform_h_ 2#define __khrplatform_h_ 3 4/* 5** Copyright (c) 2008-2018 The Khronos Group Inc. 6** 7** Permission is hereby granted, free of charge, to any person obtaining a 8** copy of this software and/or associated documentation files (the 9** "Materials"), to deal in the Materials without restriction, including 10** without limitation the rights to use, copy, modify, merge, publish, 11** distribute, sublicense, and/or sell copies of the Materials, and to 12** permit persons to whom the Materials are furnished to do so, subject to 13** the following conditions: 14** 15** The above copyright notice and this permission notice shall be included 16** in all copies or substantial portions of the Materials. 17** 18** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 22** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. 25*/ 26 27/* Khronos platform-specific types and definitions. 28 * 29 * The master copy of khrplatform.h is maintained in the Khronos EGL 30 * Registry repository at https://github.com/KhronosGroup/EGL-Registry 31 * The last semantic modification to khrplatform.h was at commit ID: 32 * 67a3e0864c2d75ea5287b9f3d2eb74a745936692 33 * 34 * Adopters may modify this file to suit their platform. Adopters are 35 * encouraged to submit platform specific modifications to the Khronos 36 * group so that they can be included in future versions of this file. 37 * Please submit changes by filing pull requests or issues on 38 * the EGL Registry repository linked above. 39 * 40 * 41 * See the Implementer's Guidelines for information about where this file 42 * should be located on your system and for more details of its use: 43 * http://www.khronos.org/registry/implementers_guide.pdf 44 * 45 * This file should be included as 46 * #include <KHR/khrplatform.h> 47 * by Khronos client API header files that use its types and defines. 48 * 49 * The types in khrplatform.h should only be used to define API-specific types. 50 * 51 * Types defined in khrplatform.h: 52 * khronos_int8_t signed 8 bit 53 * khronos_uint8_t unsigned 8 bit 54 * khronos_int16_t signed 16 bit 55 * khronos_uint16_t unsigned 16 bit 56 * khronos_int32_t signed 32 bit 57 * khronos_uint32_t unsigned 32 bit 58 * khronos_int64_t signed 64 bit 59 * khronos_uint64_t unsigned 64 bit 60 * khronos_intptr_t signed same number of bits as a pointer 61 * khronos_uintptr_t unsigned same number of bits as a pointer 62 * khronos_ssize_t signed size 63 * khronos_usize_t unsigned size 64 * khronos_float_t signed 32 bit floating point 65 * khronos_time_ns_t unsigned 64 bit time in nanoseconds 66 * khronos_utime_nanoseconds_t unsigned time interval or absolute time in 67 * nanoseconds 68 * khronos_stime_nanoseconds_t signed time interval in nanoseconds 69 * khronos_boolean_enum_t enumerated boolean type. This should 70 * only be used as a base type when a client API's boolean type is 71 * an enum. Client APIs which use an integer or other type for 72 * booleans cannot use this as the base type for their boolean. 73 * 74 * Tokens defined in khrplatform.h: 75 * 76 * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. 77 * 78 * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. 79 * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. 80 * 81 * Calling convention macros defined in this file: 82 * KHRONOS_APICALL 83 * KHRONOS_APIENTRY 84 * KHRONOS_APIATTRIBUTES 85 * 86 * These may be used in function prototypes as: 87 * 88 * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( 89 * int arg1, 90 * int arg2) KHRONOS_APIATTRIBUTES; 91 */ 92 93#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC) 94# define KHRONOS_STATIC 1 95#endif 96 97/*------------------------------------------------------------------------- 98 * Definition of KHRONOS_APICALL 99 *------------------------------------------------------------------------- 100 * This precedes the return type of the function in the function prototype. 101 */ 102#if defined(KHRONOS_STATIC) 103 /* If the preprocessor constant KHRONOS_STATIC is defined, make the 104 * header compatible with static linking. */ 105# define KHRONOS_APICALL 106#elif defined(_WIN32) 107# define KHRONOS_APICALL __declspec(dllimport) 108#elif defined (__SYMBIAN32__) 109# define KHRONOS_APICALL IMPORT_C 110#elif (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303) \ 111 || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) 112/* KHRONOS_APIATTRIBUTES is not used by the client API headers yet */ 113# define KHRONOS_APICALL __attribute__((visibility("default"))) 114#else 115# define KHRONOS_APICALL 116#endif 117 118/*------------------------------------------------------------------------- 119 * Definition of KHRONOS_APIENTRY 120 *------------------------------------------------------------------------- 121 * This follows the return type of the function and precedes the function 122 * name in the function prototype. 123 */ 124#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(KHRONOS_STATIC) 125 /* Win32 but not WinCE */ 126# define KHRONOS_APIENTRY __stdcall 127#else 128# define KHRONOS_APIENTRY 129#endif 130 131/*------------------------------------------------------------------------- 132 * Definition of KHRONOS_APIATTRIBUTES 133 *------------------------------------------------------------------------- 134 * This follows the closing parenthesis of the function prototype arguments. 135 */ 136#if defined (__ARMCC_2__) 137#define KHRONOS_APIATTRIBUTES __softfp 138#else 139#define KHRONOS_APIATTRIBUTES 140#endif 141 142/*------------------------------------------------------------------------- 143 * basic type definitions 144 *-----------------------------------------------------------------------*/ 145#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) 146 147 148/* 149 * Using <stdint.h> 150 */ 151#include <stdint.h> 152typedef int32_t khronos_int32_t; 153typedef uint32_t khronos_uint32_t; 154typedef int64_t khronos_int64_t; 155typedef uint64_t khronos_uint64_t; 156#define KHRONOS_SUPPORT_INT64 1 157#define KHRONOS_SUPPORT_FLOAT 1 158 159#elif defined(__VMS ) || defined(__sgi) 160 161/* 162 * Using <inttypes.h> 163 */ 164#include <inttypes.h> 165typedef int32_t khronos_int32_t; 166typedef uint32_t khronos_uint32_t; 167typedef int64_t khronos_int64_t; 168typedef uint64_t khronos_uint64_t; 169#define KHRONOS_SUPPORT_INT64 1 170#define KHRONOS_SUPPORT_FLOAT 1 171 172#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) 173 174/* 175 * Win32 176 */ 177typedef __int32 khronos_int32_t; 178typedef unsigned __int32 khronos_uint32_t; 179typedef __int64 khronos_int64_t; 180typedef unsigned __int64 khronos_uint64_t; 181#define KHRONOS_SUPPORT_INT64 1 182#define KHRONOS_SUPPORT_FLOAT 1 183 184#elif defined(__sun__) || defined(__digital__) 185 186/* 187 * Sun or Digital 188 */ 189typedef int khronos_int32_t; 190typedef unsigned int khronos_uint32_t; 191#if defined(__arch64__) || defined(_LP64) 192typedef long int khronos_int64_t; 193typedef unsigned long int khronos_uint64_t; 194#else 195typedef long long int khronos_int64_t; 196typedef unsigned long long int khronos_uint64_t; 197#endif /* __arch64__ */ 198#define KHRONOS_SUPPORT_INT64 1 199#define KHRONOS_SUPPORT_FLOAT 1 200 201#elif 0 202 203/* 204 * Hypothetical platform with no float or int64 support 205 */ 206typedef int khronos_int32_t; 207typedef unsigned int khronos_uint32_t; 208#define KHRONOS_SUPPORT_INT64 0 209#define KHRONOS_SUPPORT_FLOAT 0 210 211#else 212 213/* 214 * Generic fallback 215 */ 216#include <stdint.h> 217typedef int32_t khronos_int32_t; 218typedef uint32_t khronos_uint32_t; 219typedef int64_t khronos_int64_t; 220typedef uint64_t khronos_uint64_t; 221#define KHRONOS_SUPPORT_INT64 1 222#define KHRONOS_SUPPORT_FLOAT 1 223 224#endif 225 226 227/* 228 * Types that are (so far) the same on all platforms 229 */ 230typedef signed char khronos_int8_t; 231typedef unsigned char khronos_uint8_t; 232typedef signed short int khronos_int16_t; 233typedef unsigned short int khronos_uint16_t; 234 235/* 236 * Types that differ between LLP64 and LP64 architectures - in LLP64, 237 * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears 238 * to be the only LLP64 architecture in current use. 239 */ 240#ifdef _WIN64 241typedef signed long long int khronos_intptr_t; 242typedef unsigned long long int khronos_uintptr_t; 243typedef signed long long int khronos_ssize_t; 244typedef unsigned long long int khronos_usize_t; 245#else 246typedef signed long int khronos_intptr_t; 247typedef unsigned long int khronos_uintptr_t; 248typedef signed long int khronos_ssize_t; 249typedef unsigned long int khronos_usize_t; 250#endif 251 252#if KHRONOS_SUPPORT_FLOAT 253/* 254 * Float type 255 */ 256typedef float khronos_float_t; 257#endif 258 259#if KHRONOS_SUPPORT_INT64 260/* Time types 261 * 262 * These types can be used to represent a time interval in nanoseconds or 263 * an absolute Unadjusted System Time. Unadjusted System Time is the number 264 * of nanoseconds since some arbitrary system event (e.g. since the last 265 * time the system booted). The Unadjusted System Time is an unsigned 266 * 64 bit value that wraps back to 0 every 584 years. Time intervals 267 * may be either signed or unsigned. 268 */ 269typedef khronos_uint64_t khronos_utime_nanoseconds_t; 270typedef khronos_int64_t khronos_stime_nanoseconds_t; 271#endif 272 273/* 274 * Dummy value used to pad enum types to 32 bits. 275 */ 276#ifndef KHRONOS_MAX_ENUM 277#define KHRONOS_MAX_ENUM 0x7FFFFFFF 278#endif 279 280/* 281 * Enumerated boolean type 282 * 283 * Values other than zero should be considered to be true. Therefore 284 * comparisons should not be made against KHRONOS_TRUE. 285 */ 286typedef enum { 287 KHRONOS_FALSE = 0, 288 KHRONOS_TRUE = 1, 289 KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM 290} khronos_boolean_enum_t; 291 292#endif /* __khrplatform_h_ */ 293