1#ifndef __khrplatform_h_ 2#define __khrplatform_h_ 3 4/* 5** Copyright (c) 2008-2009 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 * $Revision: 1.1.1.2 $ on $Date: 2021/07/11 20:36:22 $ 30 * 31 * Adopters may modify this file to suit their platform. Adopters are 32 * encouraged to submit platform specific modifications to the Khronos 33 * group so that they can be included in future versions of this file. 34 * Please submit changes by sending them to the public Khronos Bugzilla 35 * (http://khronos.org/bugzilla) by filing a bug against product 36 * "Khronos (general)" component "Registry". 37 * 38 * A predefined template which fills in some of the bug fields can be 39 * reached using http://tinyurl.com/khrplatform-h-bugreport, but you 40 * must create a Bugzilla login first. 41 * 42 * 43 * See the Implementer's Guidelines for information about where this file 44 * should be located on your system and for more details of its use: 45 * http://www.khronos.org/registry/implementers_guide.pdf 46 * 47 * This file should be included as 48 * #include <KHR/khrplatform.h> 49 * by Khronos client API header files that use its types and defines. 50 * 51 * The types in khrplatform.h should only be used to define API-specific types. 52 * 53 * Types defined in khrplatform.h: 54 * khronos_int8_t signed 8 bit 55 * khronos_uint8_t unsigned 8 bit 56 * khronos_int16_t signed 16 bit 57 * khronos_uint16_t unsigned 16 bit 58 * khronos_int32_t signed 32 bit 59 * khronos_uint32_t unsigned 32 bit 60 * khronos_int64_t signed 64 bit 61 * khronos_uint64_t unsigned 64 bit 62 * khronos_intptr_t signed same number of bits as a pointer 63 * khronos_uintptr_t unsigned same number of bits as a pointer 64 * khronos_ssize_t signed size 65 * khronos_usize_t unsigned size 66 * khronos_float_t signed 32 bit floating point 67 * khronos_time_ns_t unsigned 64 bit time in nanoseconds 68 * khronos_utime_nanoseconds_t unsigned time interval or absolute time in 69 * nanoseconds 70 * khronos_stime_nanoseconds_t signed time interval in nanoseconds 71 * khronos_boolean_enum_t enumerated boolean type. This should 72 * only be used as a base type when a client API's boolean type is 73 * an enum. Client APIs which use an integer or other type for 74 * booleans cannot use this as the base type for their boolean. 75 * 76 * Tokens defined in khrplatform.h: 77 * 78 * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. 79 * 80 * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. 81 * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. 82 * 83 * Calling convention macros defined in this file: 84 * KHRONOS_APICALL 85 * KHRONOS_APIENTRY 86 * KHRONOS_APIATTRIBUTES 87 * 88 * These may be used in function prototypes as: 89 * 90 * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( 91 * int arg1, 92 * int arg2) KHRONOS_APIATTRIBUTES; 93 */ 94 95/*------------------------------------------------------------------------- 96 * Definition of KHRONOS_APICALL 97 *------------------------------------------------------------------------- 98 * This precedes the return type of the function in the function prototype. 99 */ 100#if defined(_WIN32) && !defined(__SCITECH_SNAP__) 101# define KHRONOS_APICALL __declspec(dllimport) 102#elif defined (__SYMBIAN32__) 103# define KHRONOS_APICALL IMPORT_C 104#elif (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303) \ 105 || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) 106/* KHRONOS_APIATTRIBUTES is not used by the client API headers yet */ 107# define KHRONOS_APICALL __attribute__((visibility("default"))) 108#else 109# define KHRONOS_APICALL 110#endif 111 112/*------------------------------------------------------------------------- 113 * Definition of KHRONOS_APIENTRY 114 *------------------------------------------------------------------------- 115 * This follows the return type of the function and precedes the function 116 * name in the function prototype. 117 */ 118#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) 119 /* Win32 but not WinCE */ 120# define KHRONOS_APIENTRY __stdcall 121#else 122# define KHRONOS_APIENTRY 123#endif 124 125/*------------------------------------------------------------------------- 126 * Definition of KHRONOS_APIATTRIBUTES 127 *------------------------------------------------------------------------- 128 * This follows the closing parenthesis of the function prototype arguments. 129 */ 130#if defined (__ARMCC_2__) 131#define KHRONOS_APIATTRIBUTES __softfp 132#else 133#define KHRONOS_APIATTRIBUTES 134#endif 135 136/*------------------------------------------------------------------------- 137 * basic type definitions 138 *-----------------------------------------------------------------------*/ 139#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) 140 141 142/* 143 * Using <stdint.h> 144 */ 145#include <stdint.h> 146typedef int32_t khronos_int32_t; 147typedef uint32_t khronos_uint32_t; 148typedef int64_t khronos_int64_t; 149typedef uint64_t khronos_uint64_t; 150#define KHRONOS_SUPPORT_INT64 1 151#define KHRONOS_SUPPORT_FLOAT 1 152 153#elif defined(__VMS ) || defined(__sgi) 154 155/* 156 * Using <inttypes.h> 157 */ 158#include <inttypes.h> 159typedef int32_t khronos_int32_t; 160typedef uint32_t khronos_uint32_t; 161typedef int64_t khronos_int64_t; 162typedef uint64_t khronos_uint64_t; 163#define KHRONOS_SUPPORT_INT64 1 164#define KHRONOS_SUPPORT_FLOAT 1 165 166#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) 167 168/* 169 * Win32 170 */ 171typedef __int32 khronos_int32_t; 172typedef unsigned __int32 khronos_uint32_t; 173typedef __int64 khronos_int64_t; 174typedef unsigned __int64 khronos_uint64_t; 175#define KHRONOS_SUPPORT_INT64 1 176#define KHRONOS_SUPPORT_FLOAT 1 177 178#elif defined(__sun__) || defined(__digital__) 179 180/* 181 * Sun or Digital 182 */ 183typedef int khronos_int32_t; 184typedef unsigned int khronos_uint32_t; 185#if defined(__arch64__) || defined(_LP64) 186typedef long int khronos_int64_t; 187typedef unsigned long int khronos_uint64_t; 188#else 189typedef long long int khronos_int64_t; 190typedef unsigned long long int khronos_uint64_t; 191#endif /* __arch64__ */ 192#define KHRONOS_SUPPORT_INT64 1 193#define KHRONOS_SUPPORT_FLOAT 1 194 195#elif 0 196 197/* 198 * Hypothetical platform with no float or int64 support 199 */ 200typedef int khronos_int32_t; 201typedef unsigned int khronos_uint32_t; 202#define KHRONOS_SUPPORT_INT64 0 203#define KHRONOS_SUPPORT_FLOAT 0 204 205#else 206 207/* 208 * Generic fallback 209 */ 210#include <stdint.h> 211typedef int32_t khronos_int32_t; 212typedef uint32_t khronos_uint32_t; 213typedef int64_t khronos_int64_t; 214typedef uint64_t khronos_uint64_t; 215#define KHRONOS_SUPPORT_INT64 1 216#define KHRONOS_SUPPORT_FLOAT 1 217 218#endif 219 220 221/* 222 * Types that are (so far) the same on all platforms 223 */ 224typedef signed char khronos_int8_t; 225typedef unsigned char khronos_uint8_t; 226typedef signed short int khronos_int16_t; 227typedef unsigned short int khronos_uint16_t; 228 229/* 230 * Types that differ between LLP64 and LP64 architectures - in LLP64, 231 * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears 232 * to be the only LLP64 architecture in current use. 233 */ 234#ifdef _WIN64 235typedef signed long long int khronos_intptr_t; 236typedef unsigned long long int khronos_uintptr_t; 237typedef signed long long int khronos_ssize_t; 238typedef unsigned long long int khronos_usize_t; 239#else 240typedef signed long int khronos_intptr_t; 241typedef unsigned long int khronos_uintptr_t; 242typedef signed long int khronos_ssize_t; 243typedef unsigned long int khronos_usize_t; 244#endif 245 246#if KHRONOS_SUPPORT_FLOAT 247/* 248 * Float type 249 */ 250typedef float khronos_float_t; 251#endif 252 253#if KHRONOS_SUPPORT_INT64 254/* Time types 255 * 256 * These types can be used to represent a time interval in nanoseconds or 257 * an absolute Unadjusted System Time. Unadjusted System Time is the number 258 * of nanoseconds since some arbitrary system event (e.g. since the last 259 * time the system booted). The Unadjusted System Time is an unsigned 260 * 64 bit value that wraps back to 0 every 584 years. Time intervals 261 * may be either signed or unsigned. 262 */ 263typedef khronos_uint64_t khronos_utime_nanoseconds_t; 264typedef khronos_int64_t khronos_stime_nanoseconds_t; 265#endif 266 267/* 268 * Dummy value used to pad enum types to 32 bits. 269 */ 270#ifndef KHRONOS_MAX_ENUM 271#define KHRONOS_MAX_ENUM 0x7FFFFFFF 272#endif 273 274/* 275 * Enumerated boolean type 276 * 277 * Values other than zero should be considered to be true. Therefore 278 * comparisons should not be made against KHRONOS_TRUE. 279 */ 280typedef enum { 281 KHRONOS_FALSE = 0, 282 KHRONOS_TRUE = 1, 283 KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM 284} khronos_boolean_enum_t; 285 286#endif /* __khrplatform_h_ */ 287