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 /* Platform-specific types and definitions. 28 * $Revision: 7244 $ on $Date: 2009-01-20 17:06:59 -0800 (Tue, 20 Jan 2009) $ 29 * 30 * Adopters may modify this file to suit their platform. Adopters are 31 * encouraged to submit platform specific modifications to the Khronos 32 * group so that they can be included in future versions of this file. 33 * Please submit changes by sending them to the public Khronos Bugzilla 34 * (http://khronos.org/bugzilla) by filing a bug against product 35 * "Khronos (general)" component "Registry". 36 * 37 * A predefined template which fills in some of the bug fields can be 38 * reached using http://tinyurl.com/khrplatform-h-bugreport, but you 39 * must create a Bugzilla login first. 40 * 41 * 42 * See the Implementer's Guidelines for information about where this file 43 * should be located on your system. 44 * http://www.khronos.org/registry/implementers_guide.pdf 45 * 46 * 47 * This file should be included as 48 * #include <KHR/khrplatform.h> 49 * by the Khronos API header file that uses its types and defines. 50 * 51 * The types in this file should only be used to define API-specific types. 52 * Types defined in this file: 53 * khronos_int8_t signed 8 bit 54 * khronos_uint8_t unsigned 8 bit 55 * khronos_int16_t signed 16 bit 56 * khronos_uint16_t unsigned 16 bit 57 * khronos_int32_t signed 32 bit 58 * khronos_uint32_t unsigned 32 bit 59 * khronos_int64_t signed 64 bit 60 * khronos_uint64_t unsigned 64 bit 61 * khronos_intptr_t signed same number of bits as a pointer 62 * khronos_uintptr_t unsigned same number of bits as a pointer 63 * khronos_ssize_t signed size 64 * khronos_usize_t unsigned size 65 * khronos_float_t signed 32 bit floating point 66 * khronos_time_ns_t unsigned 64 bit time in nanoseconds 67 * khronos_utime_nanoseconds_t unsigned time interval or absolute time in 68 * nanoseconds 69 * khronos_stime_nanoseconds_t signed time interval in nanoseconds 70 * 71 * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. 72 * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. 73 * 74 * 75 * Macros defined in this file: 76 * KHRONOS_APICALL 77 * KHRONOS_APIENTRY 78 * KHRONOS_APIATTRIBUTES 79 * These may be used in function prototypes as: 80 * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( 81 * int arg1, 82 * int arg2) KHRONOS_APIATTRIBUTES; 83 */ 84 85 /*------------------------------------------------------------------------- 86 * Definition of KHRONOS_APICALL 87 *------------------------------------------------------------------------- 88 * This precedes the return type of the function in the function prototype. 89 */ 90 #if defined(_WIN32) && !defined(__SCITECH_SNAP__) 91 # define KHRONOS_APICALL __declspec(dllimport) 92 #elif defined (__SYMBIAN32__) 93 # define KHRONOS_APICALL IMPORT_C 94 #elif defined(__ANDROID__) 95 # include <sys/cdefs.h> 96 # define KHRONOS_APICALL __attribute__((visibility("default"))) __NDK_FPABI__ 97 #else 98 # define KHRONOS_APICALL 99 #endif 100 101 /*------------------------------------------------------------------------- 102 * Definition of KHRONOS_APIENTRY 103 *------------------------------------------------------------------------- 104 * This follows the return type of the function and precedes the function 105 * name in the function prototype. 106 */ 107 #if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) 108 /* Win32 but not WinCE */ 109 # define KHRONOS_APIENTRY __stdcall 110 #else 111 # define KHRONOS_APIENTRY 112 #endif 113 114 /*------------------------------------------------------------------------- 115 * Definition of KHRONOS_APIATTRIBUTES 116 *------------------------------------------------------------------------- 117 * This follows the closing parenthesis of the function prototype arguments. 118 */ 119 #if defined (__ARMCC_2__) 120 #define KHRONOS_APIATTRIBUTES __softfp 121 #else 122 #define KHRONOS_APIATTRIBUTES 123 #endif 124 125 /*------------------------------------------------------------------------- 126 * basic type definitions 127 *-----------------------------------------------------------------------*/ 128 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) 129 130 131 /* 132 * Using <stdint.h> 133 */ 134 #include <stdint.h> 135 typedef int32_t khronos_int32_t; 136 typedef uint32_t khronos_uint32_t; 137 typedef int64_t khronos_int64_t; 138 typedef uint64_t khronos_uint64_t; 139 #define KHRONOS_SUPPORT_INT64 1 140 #define KHRONOS_SUPPORT_FLOAT 1 141 142 #elif defined(__VMS ) || defined(__sgi) 143 144 /* 145 * Using <inttypes.h> 146 */ 147 #include <inttypes.h> 148 typedef int32_t khronos_int32_t; 149 typedef uint32_t khronos_uint32_t; 150 typedef int64_t khronos_int64_t; 151 typedef uint64_t khronos_uint64_t; 152 #define KHRONOS_SUPPORT_INT64 1 153 #define KHRONOS_SUPPORT_FLOAT 1 154 155 #elif defined(_WIN32) && !defined(__SCITECH_SNAP__) 156 157 /* 158 * Win32 159 */ 160 typedef __int32 khronos_int32_t; 161 typedef unsigned __int32 khronos_uint32_t; 162 typedef __int64 khronos_int64_t; 163 typedef unsigned __int64 khronos_uint64_t; 164 #define KHRONOS_SUPPORT_INT64 1 165 #define KHRONOS_SUPPORT_FLOAT 1 166 167 #elif defined(__sun__) || defined(__digital__) 168 169 /* 170 * Sun or Digital 171 */ 172 typedef int khronos_int32_t; 173 typedef unsigned int khronos_uint32_t; 174 #if defined(__arch64__) || defined(_LP64) 175 typedef long int khronos_int64_t; 176 typedef unsigned long int khronos_uint64_t; 177 #else 178 typedef long long int khronos_int64_t; 179 typedef unsigned long long int khronos_uint64_t; 180 #endif /* __arch64__ */ 181 #define KHRONOS_SUPPORT_INT64 1 182 #define KHRONOS_SUPPORT_FLOAT 1 183 184 #elif 0 185 186 /* 187 * Hypothetical platform with no float or int64 support 188 */ 189 typedef int khronos_int32_t; 190 typedef unsigned int khronos_uint32_t; 191 #define KHRONOS_SUPPORT_INT64 0 192 #define KHRONOS_SUPPORT_FLOAT 0 193 194 #else 195 196 /* 197 * Generic fallback 198 */ 199 #include <stdint.h> 200 typedef int32_t khronos_int32_t; 201 typedef uint32_t khronos_uint32_t; 202 typedef int64_t khronos_int64_t; 203 typedef uint64_t khronos_uint64_t; 204 #define KHRONOS_SUPPORT_INT64 1 205 #define KHRONOS_SUPPORT_FLOAT 1 206 207 #endif 208 209 210 /* 211 * Types that are (so far) the same on all platforms 212 */ 213 typedef signed char khronos_int8_t; 214 typedef unsigned char khronos_uint8_t; 215 typedef signed short int khronos_int16_t; 216 typedef unsigned short int khronos_uint16_t; 217 typedef signed long int khronos_intptr_t; 218 typedef unsigned long int khronos_uintptr_t; 219 typedef signed long int khronos_ssize_t; 220 typedef unsigned long int khronos_usize_t; 221 222 #if KHRONOS_SUPPORT_FLOAT 223 /* 224 * Float type 225 */ 226 typedef float khronos_float_t; 227 #endif 228 229 #if KHRONOS_SUPPORT_INT64 230 /* Time types 231 * 232 * These types can be used to represent a time interval in nanoseconds or 233 * an absolute Unadjusted System Time. Unadjusted System Time is the number 234 * of nanoseconds since some arbitrary system event (e.g. since the last 235 * time the system booted). The Unadjusted System Time is an unsigned 236 * 64 bit value that wraps back to 0 every 584 years. Time intervals 237 * may be either signed or unsigned. 238 */ 239 typedef khronos_uint64_t khronos_utime_nanoseconds_t; 240 typedef khronos_int64_t khronos_stime_nanoseconds_t; 241 #endif 242 243 244 #endif /* __khrplatform_h_ */ 245