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: 23298 $ on $Date: 2013-09-30 17:07:13 -0700 (Mon, 30 Sep 2013) $ 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 #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 * Chromium-specific overrides of KHRONOS_APICALL and KHRONOS_APIENTRY 123 *-----------------------------------------------------------------------*/ 124 125 #undef KHRONOS_APICALL 126 #if defined(GLES2_USE_MOJO) 127 #include "mojo/public/c/gles2/gles2_export.h" 128 #define KHRONOS_APICALL MOJO_GLES2_EXPORT 129 #else 130 #include "gpu/command_buffer/client/gles2_c_lib_export.h" 131 #define KHRONOS_APICALL GLES2_C_LIB_EXPORT 132 #endif 133 134 #undef KHRONOS_APIENTRY 135 #define KHRONOS_APIENTRY 136 137 /*------------------------------------------------------------------------- 138 * Definition of KHRONOS_APIATTRIBUTES 139 *------------------------------------------------------------------------- 140 * This follows the closing parenthesis of the function prototype arguments. 141 */ 142 #if defined (__ARMCC_2__) 143 #define KHRONOS_APIATTRIBUTES __softfp 144 #else 145 #define KHRONOS_APIATTRIBUTES 146 #endif 147 148 /*------------------------------------------------------------------------- 149 * basic type definitions 150 *-----------------------------------------------------------------------*/ 151 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) 152 153 154 /* 155 * Using <stdint.h> 156 */ 157 #include <stdint.h> 158 typedef int32_t khronos_int32_t; 159 typedef uint32_t khronos_uint32_t; 160 typedef int64_t khronos_int64_t; 161 typedef uint64_t khronos_uint64_t; 162 #define KHRONOS_SUPPORT_INT64 1 163 #define KHRONOS_SUPPORT_FLOAT 1 164 165 #elif defined(__VMS ) || defined(__sgi) 166 167 /* 168 * Using <inttypes.h> 169 */ 170 #include <inttypes.h> 171 typedef int32_t khronos_int32_t; 172 typedef uint32_t khronos_uint32_t; 173 typedef int64_t khronos_int64_t; 174 typedef uint64_t khronos_uint64_t; 175 #define KHRONOS_SUPPORT_INT64 1 176 #define KHRONOS_SUPPORT_FLOAT 1 177 178 #elif defined(_WIN32) && !defined(__SCITECH_SNAP__) 179 180 /* 181 * Win32 182 */ 183 typedef __int32 khronos_int32_t; 184 typedef unsigned __int32 khronos_uint32_t; 185 typedef __int64 khronos_int64_t; 186 typedef unsigned __int64 khronos_uint64_t; 187 #define KHRONOS_SUPPORT_INT64 1 188 #define KHRONOS_SUPPORT_FLOAT 1 189 190 #elif defined(__sun__) || defined(__digital__) 191 192 /* 193 * Sun or Digital 194 */ 195 typedef int khronos_int32_t; 196 typedef unsigned int khronos_uint32_t; 197 #if defined(__arch64__) || defined(_LP64) 198 typedef long int khronos_int64_t; 199 typedef unsigned long int khronos_uint64_t; 200 #else 201 typedef long long int khronos_int64_t; 202 typedef unsigned long long int khronos_uint64_t; 203 #endif /* __arch64__ */ 204 #define KHRONOS_SUPPORT_INT64 1 205 #define KHRONOS_SUPPORT_FLOAT 1 206 207 #elif 0 208 209 /* 210 * Hypothetical platform with no float or int64 support 211 */ 212 typedef int khronos_int32_t; 213 typedef unsigned int khronos_uint32_t; 214 #define KHRONOS_SUPPORT_INT64 0 215 #define KHRONOS_SUPPORT_FLOAT 0 216 217 #else 218 219 /* 220 * Generic fallback 221 */ 222 #include <stdint.h> 223 typedef int32_t khronos_int32_t; 224 typedef uint32_t khronos_uint32_t; 225 typedef int64_t khronos_int64_t; 226 typedef uint64_t khronos_uint64_t; 227 #define KHRONOS_SUPPORT_INT64 1 228 #define KHRONOS_SUPPORT_FLOAT 1 229 230 #endif 231 232 233 /* 234 * Types that are (so far) the same on all platforms 235 */ 236 typedef signed char khronos_int8_t; 237 typedef unsigned char khronos_uint8_t; 238 typedef signed short int khronos_int16_t; 239 typedef unsigned short int khronos_uint16_t; 240 241 /* 242 * Types that differ between LLP64 and LP64 architectures - in LLP64, 243 * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears 244 * to be the only LLP64 architecture in current use. 245 */ 246 #ifdef _WIN64 247 typedef signed long long int khronos_intptr_t; 248 typedef unsigned long long int khronos_uintptr_t; 249 typedef signed long long int khronos_ssize_t; 250 typedef unsigned long long int khronos_usize_t; 251 #else 252 typedef signed long int khronos_intptr_t; 253 typedef unsigned long int khronos_uintptr_t; 254 typedef signed long int khronos_ssize_t; 255 typedef unsigned long int khronos_usize_t; 256 #endif 257 258 #if KHRONOS_SUPPORT_FLOAT 259 /* 260 * Float type 261 */ 262 typedef float khronos_float_t; 263 #endif 264 265 #if KHRONOS_SUPPORT_INT64 266 /* Time types 267 * 268 * These types can be used to represent a time interval in nanoseconds or 269 * an absolute Unadjusted System Time. Unadjusted System Time is the number 270 * of nanoseconds since some arbitrary system event (e.g. since the last 271 * time the system booted). The Unadjusted System Time is an unsigned 272 * 64 bit value that wraps back to 0 every 584 years. Time intervals 273 * may be either signed or unsigned. 274 */ 275 typedef khronos_uint64_t khronos_utime_nanoseconds_t; 276 typedef khronos_int64_t khronos_stime_nanoseconds_t; 277 #endif 278 279 /* 280 * Dummy value used to pad enum types to 32 bits. 281 */ 282 #ifndef KHRONOS_MAX_ENUM 283 #define KHRONOS_MAX_ENUM 0x7FFFFFFF 284 #endif 285 286 /* 287 * Enumerated boolean type 288 * 289 * Values other than zero should be considered to be true. Therefore 290 * comparisons should not be made against KHRONOS_TRUE. 291 */ 292 typedef enum { 293 KHRONOS_FALSE = 0, 294 KHRONOS_TRUE = 1, 295 KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM 296 } khronos_boolean_enum_t; 297 298 #endif /* __khrplatform_h_ */ 299