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| 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 | +/*------------------------------------------------------------------------- |
| 94 | + * Definition of KHRONOS_APICALL |
| 95 | + *------------------------------------------------------------------------- |
| 96 | + * This precedes the return type of the function in the function prototype. |
| 97 | + */ |
| 98 | +#if defined(_WIN32) && !defined(__SCITECH_SNAP__) |
| 99 | +# define KHRONOS_APICALL __declspec(dllimport) |
| 100 | +#elif defined (__SYMBIAN32__) |
| 101 | +# define KHRONOS_APICALL IMPORT_C |
| 102 | +#elif defined(__ANDROID__) |
| 103 | +# define KHRONOS_APICALL __attribute__((visibility("default"))) |
| 104 | +#else |
| 105 | +# define KHRONOS_APICALL |
| 106 | +#endif |
| 107 | + |
| 108 | +/*------------------------------------------------------------------------- |
| 109 | + * Definition of KHRONOS_APIENTRY |
| 110 | + *------------------------------------------------------------------------- |
| 111 | + * This follows the return type of the function and precedes the function |
| 112 | + * name in the function prototype. |
| 113 | + */ |
| 114 | +#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) |
| 115 | + /* Win32 but not WinCE */ |
| 116 | +# define KHRONOS_APIENTRY __stdcall |
| 117 | +#else |
| 118 | +# define KHRONOS_APIENTRY |
| 119 | +#endif |
| 120 | + |
| 121 | +/*------------------------------------------------------------------------- |
| 122 | + * Definition of KHRONOS_APIATTRIBUTES |
| 123 | + *------------------------------------------------------------------------- |
| 124 | + * This follows the closing parenthesis of the function prototype arguments. |
| 125 | + */ |
| 126 | +#if defined (__ARMCC_2__) |
| 127 | +#define KHRONOS_APIATTRIBUTES __softfp |
| 128 | +#else |
| 129 | +#define KHRONOS_APIATTRIBUTES |
| 130 | +#endif |
| 131 | + |
| 132 | +/*------------------------------------------------------------------------- |
| 133 | + * basic type definitions |
| 134 | + *-----------------------------------------------------------------------*/ |
| 135 | +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) |
| 136 | + |
| 137 | + |
| 138 | +/* |
| 139 | + * Using <stdint.h> |
| 140 | + */ |
| 141 | +#include <stdint.h> |
| 142 | +typedef int32_t khronos_int32_t; |
| 143 | +typedef uint32_t khronos_uint32_t; |
| 144 | +typedef int64_t khronos_int64_t; |
| 145 | +typedef uint64_t khronos_uint64_t; |
| 146 | +#define KHRONOS_SUPPORT_INT64 1 |
| 147 | +#define KHRONOS_SUPPORT_FLOAT 1 |
| 148 | + |
| 149 | +#elif defined(__VMS ) || defined(__sgi) |
| 150 | + |
| 151 | +/* |
| 152 | + * Using <inttypes.h> |
| 153 | + */ |
| 154 | +#include <inttypes.h> |
| 155 | +typedef int32_t khronos_int32_t; |
| 156 | +typedef uint32_t khronos_uint32_t; |
| 157 | +typedef int64_t khronos_int64_t; |
| 158 | +typedef uint64_t khronos_uint64_t; |
| 159 | +#define KHRONOS_SUPPORT_INT64 1 |
| 160 | +#define KHRONOS_SUPPORT_FLOAT 1 |
| 161 | + |
| 162 | +#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) |
| 163 | + |
| 164 | +/* |
| 165 | + * Win32 |
| 166 | + */ |
| 167 | +typedef __int32 khronos_int32_t; |
| 168 | +typedef unsigned __int32 khronos_uint32_t; |
| 169 | +typedef __int64 khronos_int64_t; |
| 170 | +typedef unsigned __int64 khronos_uint64_t; |
| 171 | +#define KHRONOS_SUPPORT_INT64 1 |
| 172 | +#define KHRONOS_SUPPORT_FLOAT 1 |
| 173 | + |
| 174 | +#elif defined(__sun__) || defined(__digital__) |
| 175 | + |
| 176 | +/* |
| 177 | + * Sun or Digital |
| 178 | + */ |
| 179 | +typedef int khronos_int32_t; |
| 180 | +typedef unsigned int khronos_uint32_t; |
| 181 | +#if defined(__arch64__) || defined(_LP64) |
| 182 | +typedef long int khronos_int64_t; |
| 183 | +typedef unsigned long int khronos_uint64_t; |
| 184 | +#else |
| 185 | +typedef long long int khronos_int64_t; |
| 186 | +typedef unsigned long long int khronos_uint64_t; |
| 187 | +#endif /* __arch64__ */ |
| 188 | +#define KHRONOS_SUPPORT_INT64 1 |
| 189 | +#define KHRONOS_SUPPORT_FLOAT 1 |
| 190 | + |
| 191 | +#elif 0 |
| 192 | + |
| 193 | +/* |
| 194 | + * Hypothetical platform with no float or int64 support |
| 195 | + */ |
| 196 | +typedef int khronos_int32_t; |
| 197 | +typedef unsigned int khronos_uint32_t; |
| 198 | +#define KHRONOS_SUPPORT_INT64 0 |
| 199 | +#define KHRONOS_SUPPORT_FLOAT 0 |
| 200 | + |
| 201 | +#else |
| 202 | + |
| 203 | +/* |
| 204 | + * Generic fallback |
| 205 | + */ |
| 206 | +#include <stdint.h> |
| 207 | +typedef int32_t khronos_int32_t; |
| 208 | +typedef uint32_t khronos_uint32_t; |
| 209 | +typedef int64_t khronos_int64_t; |
| 210 | +typedef uint64_t khronos_uint64_t; |
| 211 | +#define KHRONOS_SUPPORT_INT64 1 |
| 212 | +#define KHRONOS_SUPPORT_FLOAT 1 |
| 213 | + |
| 214 | +#endif |
| 215 | + |
| 216 | + |
| 217 | +/* |
| 218 | + * Types that are (so far) the same on all platforms |
| 219 | + */ |
| 220 | +typedef signed char khronos_int8_t; |
| 221 | +typedef unsigned char khronos_uint8_t; |
| 222 | +typedef signed short int khronos_int16_t; |
| 223 | +typedef unsigned short int khronos_uint16_t; |
| 224 | + |
| 225 | +/* |
| 226 | + * Types that differ between LLP64 and LP64 architectures - in LLP64, |
| 227 | + * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears |
| 228 | + * to be the only LLP64 architecture in current use. |
| 229 | + */ |
| 230 | +#ifdef _WIN64 |
| 231 | +typedef signed long long int khronos_intptr_t; |
| 232 | +typedef unsigned long long int khronos_uintptr_t; |
| 233 | +typedef signed long long int khronos_ssize_t; |
| 234 | +typedef unsigned long long int khronos_usize_t; |
| 235 | +#else |
| 236 | +typedef signed long int khronos_intptr_t; |
| 237 | +typedef unsigned long int khronos_uintptr_t; |
| 238 | +typedef signed long int khronos_ssize_t; |
| 239 | +typedef unsigned long int khronos_usize_t; |
| 240 | +#endif |
| 241 | + |
| 242 | +#if KHRONOS_SUPPORT_FLOAT |
| 243 | +/* |
| 244 | + * Float type |
| 245 | + */ |
| 246 | +typedef float khronos_float_t; |
| 247 | +#endif |
| 248 | + |
| 249 | +#if KHRONOS_SUPPORT_INT64 |
| 250 | +/* Time types |
| 251 | + * |
| 252 | + * These types can be used to represent a time interval in nanoseconds or |
| 253 | + * an absolute Unadjusted System Time. Unadjusted System Time is the number |
| 254 | + * of nanoseconds since some arbitrary system event (e.g. since the last |
| 255 | + * time the system booted). The Unadjusted System Time is an unsigned |
| 256 | + * 64 bit value that wraps back to 0 every 584 years. Time intervals |
| 257 | + * may be either signed or unsigned. |
| 258 | + */ |
| 259 | +typedef khronos_uint64_t khronos_utime_nanoseconds_t; |
| 260 | +typedef khronos_int64_t khronos_stime_nanoseconds_t; |
| 261 | +#endif |
| 262 | + |
| 263 | +/* |
| 264 | + * Dummy value used to pad enum types to 32 bits. |
| 265 | + */ |
| 266 | +#ifndef KHRONOS_MAX_ENUM |
| 267 | +#define KHRONOS_MAX_ENUM 0x7FFFFFFF |
| 268 | +#endif |
| 269 | + |
| 270 | +/* |
| 271 | + * Enumerated boolean type |
| 272 | + * |
| 273 | + * Values other than zero should be considered to be true. Therefore |
| 274 | + * comparisons should not be made against KHRONOS_TRUE. |
| 275 | + */ |
| 276 | +typedef enum { |
| 277 | + KHRONOS_FALSE = 0, |
| 278 | + KHRONOS_TRUE = 1, |
| 279 | + KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM |
| 280 | +} khronos_boolean_enum_t; |
| 281 | + |
| 282 | +#endif /* __khrplatform_h_ */ |
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