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#ifndef __khrplatform_h_ |
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#define __khrplatform_h_ |
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/* |
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** Copyright (c) 2008-2018 The Khronos Group Inc. |
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** |
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** Permission is hereby granted, free of charge, to any person obtaining a |
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** copy of this software and/or associated documentation files (the |
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** "Materials"), to deal in the Materials without restriction, including |
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** without limitation the rights to use, copy, modify, merge, publish, |
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** distribute, sublicense, and/or sell copies of the Materials, and to |
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** permit persons to whom the Materials are furnished to do so, subject to |
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** the following conditions: |
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** |
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** The above copyright notice and this permission notice shall be included |
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** in all copies or substantial portions of the Materials. |
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** |
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** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
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*/ |
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/* Khronos platform-specific types and definitions. |
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* |
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* The master copy of khrplatform.h is maintained in the Khronos EGL |
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* Registry repository at https://github.com/KhronosGroup/EGL-Registry |
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* The last semantic modification to khrplatform.h was at commit ID: |
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* 67a3e0864c2d75ea5287b9f3d2eb74a745936692 |
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* |
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* Adopters may modify this file to suit their platform. Adopters are |
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* encouraged to submit platform specific modifications to the Khronos |
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* group so that they can be included in future versions of this file. |
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* Please submit changes by filing pull requests or issues on |
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* the EGL Registry repository linked above. |
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* |
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* |
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* See the Implementer's Guidelines for information about where this file |
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* should be located on your system and for more details of its use: |
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* http://www.khronos.org/registry/implementers_guide.pdf |
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* |
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* This file should be included as |
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* #include <KHR/khrplatform.h> |
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* by Khronos client API header files that use its types and defines. |
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* |
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* The types in khrplatform.h should only be used to define API-specific types. |
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* |
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* Types defined in khrplatform.h: |
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* khronos_int8_t signed 8 bit |
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* khronos_uint8_t unsigned 8 bit |
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* khronos_int16_t signed 16 bit |
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* khronos_uint16_t unsigned 16 bit |
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* khronos_int32_t signed 32 bit |
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* khronos_uint32_t unsigned 32 bit |
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* khronos_int64_t signed 64 bit |
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* khronos_uint64_t unsigned 64 bit |
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* khronos_intptr_t signed same number of bits as a pointer |
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* khronos_uintptr_t unsigned same number of bits as a pointer |
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* khronos_ssize_t signed size |
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* khronos_usize_t unsigned size |
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* khronos_float_t signed 32 bit floating point |
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* khronos_time_ns_t unsigned 64 bit time in nanoseconds |
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* khronos_utime_nanoseconds_t unsigned time interval or absolute time in |
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* nanoseconds |
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* khronos_stime_nanoseconds_t signed time interval in nanoseconds |
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* khronos_boolean_enum_t enumerated boolean type. This should |
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* only be used as a base type when a client API's boolean type is |
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* an enum. Client APIs which use an integer or other type for |
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* booleans cannot use this as the base type for their boolean. |
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* |
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* Tokens defined in khrplatform.h: |
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* |
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* KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. |
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* |
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* KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. |
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* KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. |
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* |
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* Calling convention macros defined in this file: |
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* KHRONOS_APICALL |
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* KHRONOS_APIENTRY |
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* KHRONOS_APIATTRIBUTES |
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* |
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* These may be used in function prototypes as: |
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* |
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* KHRONOS_APICALL void KHRONOS_APIENTRY funcname( |
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* int arg1, |
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* int arg2) KHRONOS_APIATTRIBUTES; |
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*/ |
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#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC) |
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# define KHRONOS_STATIC 1 |
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#endif |
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/*------------------------------------------------------------------------- |
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* Definition of KHRONOS_APICALL |
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*------------------------------------------------------------------------- |
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* This precedes the return type of the function in the function prototype. |
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*/ |
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#if defined(KHRONOS_STATIC) |
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/* If the preprocessor constant KHRONOS_STATIC is defined, make the |
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* header compatible with static linking. */ |
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# define KHRONOS_APICALL |
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#elif defined(_WIN32) |
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# define KHRONOS_APICALL __declspec(dllimport) |
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#elif defined (__SYMBIAN32__) |
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# define KHRONOS_APICALL IMPORT_C |
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#elif defined(__ANDROID__) |
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# define KHRONOS_APICALL __attribute__((visibility("default"))) |
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#else |
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# define KHRONOS_APICALL |
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#endif |
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/*------------------------------------------------------------------------- |
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* Definition of KHRONOS_APIENTRY |
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*------------------------------------------------------------------------- |
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* This follows the return type of the function and precedes the function |
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* name in the function prototype. |
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*/ |
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#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(KHRONOS_STATIC) |
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/* Win32 but not WinCE */ |
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# define KHRONOS_APIENTRY __stdcall |
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#else |
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# define KHRONOS_APIENTRY |
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#endif |
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/*------------------------------------------------------------------------- |
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* Definition of KHRONOS_APIATTRIBUTES |
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*------------------------------------------------------------------------- |
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* This follows the closing parenthesis of the function prototype arguments. |
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*/ |
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#if defined (__ARMCC_2__) |
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#define KHRONOS_APIATTRIBUTES __softfp |
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#else |
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#define KHRONOS_APIATTRIBUTES |
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#endif |
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/*------------------------------------------------------------------------- |
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* basic type definitions |
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*-----------------------------------------------------------------------*/ |
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#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) |
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/* |
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* Using <stdint.h> |
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*/ |
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#include <stdint.h> |
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typedef int32_t khronos_int32_t; |
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typedef uint32_t khronos_uint32_t; |
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typedef int64_t khronos_int64_t; |
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typedef uint64_t khronos_uint64_t; |
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#define KHRONOS_SUPPORT_INT64 1 |
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#define KHRONOS_SUPPORT_FLOAT 1 |
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#elif defined(__VMS ) || defined(__sgi) |
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/* |
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* Using <inttypes.h> |
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*/ |
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#include <inttypes.h> |
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typedef int32_t khronos_int32_t; |
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typedef uint32_t khronos_uint32_t; |
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typedef int64_t khronos_int64_t; |
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typedef uint64_t khronos_uint64_t; |
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#define KHRONOS_SUPPORT_INT64 1 |
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#define KHRONOS_SUPPORT_FLOAT 1 |
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#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) |
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/* |
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* Win32 |
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*/ |
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typedef __int32 khronos_int32_t; |
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typedef unsigned __int32 khronos_uint32_t; |
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typedef __int64 khronos_int64_t; |
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typedef unsigned __int64 khronos_uint64_t; |
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#define KHRONOS_SUPPORT_INT64 1 |
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#define KHRONOS_SUPPORT_FLOAT 1 |
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#elif defined(__sun__) || defined(__digital__) |
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/* |
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* Sun or Digital |
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*/ |
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typedef int khronos_int32_t; |
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typedef unsigned int khronos_uint32_t; |
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#if defined(__arch64__) || defined(_LP64) |
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typedef long int khronos_int64_t; |
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typedef unsigned long int khronos_uint64_t; |
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#else |
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typedef long long int khronos_int64_t; |
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typedef unsigned long long int khronos_uint64_t; |
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#endif /* __arch64__ */ |
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#define KHRONOS_SUPPORT_INT64 1 |
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#define KHRONOS_SUPPORT_FLOAT 1 |
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#elif 0 |
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/* |
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* Hypothetical platform with no float or int64 support |
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*/ |
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typedef int khronos_int32_t; |
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typedef unsigned int khronos_uint32_t; |
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#define KHRONOS_SUPPORT_INT64 0 |
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#define KHRONOS_SUPPORT_FLOAT 0 |
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#else |
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/* |
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* Generic fallback |
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*/ |
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#include <stdint.h> |
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typedef int32_t khronos_int32_t; |
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typedef uint32_t khronos_uint32_t; |
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typedef int64_t khronos_int64_t; |
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typedef uint64_t khronos_uint64_t; |
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#define KHRONOS_SUPPORT_INT64 1 |
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#define KHRONOS_SUPPORT_FLOAT 1 |
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#endif |
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/* |
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* Types that are (so far) the same on all platforms |
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*/ |
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typedef signed char khronos_int8_t; |
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typedef unsigned char khronos_uint8_t; |
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typedef signed short int khronos_int16_t; |
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typedef unsigned short int khronos_uint16_t; |
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/* |
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* Types that differ between LLP64 and LP64 architectures - in LLP64, |
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* pointers are 64 bits, but 'long' is still 32 bits. Win64 appears |
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* to be the only LLP64 architecture in current use. |
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*/ |
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#ifdef _WIN64 |
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typedef signed long long int khronos_intptr_t; |
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typedef unsigned long long int khronos_uintptr_t; |
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typedef signed long long int khronos_ssize_t; |
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typedef unsigned long long int khronos_usize_t; |
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#else |
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typedef signed long int khronos_intptr_t; |
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typedef unsigned long int khronos_uintptr_t; |
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typedef signed long int khronos_ssize_t; |
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typedef unsigned long int khronos_usize_t; |
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#endif |
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#if KHRONOS_SUPPORT_FLOAT |
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/* |
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* Float type |
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*/ |
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typedef float khronos_float_t; |
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#endif |
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#if KHRONOS_SUPPORT_INT64 |
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/* Time types |
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* |
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* These types can be used to represent a time interval in nanoseconds or |
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* an absolute Unadjusted System Time. Unadjusted System Time is the number |
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* of nanoseconds since some arbitrary system event (e.g. since the last |
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* time the system booted). The Unadjusted System Time is an unsigned |
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* 64 bit value that wraps back to 0 every 584 years. Time intervals |
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* may be either signed or unsigned. |
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*/ |
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typedef khronos_uint64_t khronos_utime_nanoseconds_t; |
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typedef khronos_int64_t khronos_stime_nanoseconds_t; |
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#endif |
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/* |
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* Dummy value used to pad enum types to 32 bits. |
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*/ |
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#ifndef KHRONOS_MAX_ENUM |
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#define KHRONOS_MAX_ENUM 0x7FFFFFFF |
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#endif |
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/* |
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* Enumerated boolean type |
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* |
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* Values other than zero should be considered to be true. Therefore |
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* comparisons should not be made against KHRONOS_TRUE. |
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*/ |
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typedef enum { |
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KHRONOS_FALSE = 0, |
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KHRONOS_TRUE = 1, |
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KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM |
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} khronos_boolean_enum_t; |
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#endif /* __khrplatform_h_ */ |
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