vk_platform.h (2763B)
1 // 2 // File: vk_platform.h 3 // 4 /* 5 ** Copyright (c) 2014-2020 The Khronos Group Inc. 6 ** 7 ** SPDX-License-Identifier: Apache-2.0 8 */ 9 10 11 #ifndef VK_PLATFORM_H_ 12 #define VK_PLATFORM_H_ 13 14 #ifdef __cplusplus 15 extern "C" 16 { 17 #endif // __cplusplus 18 19 /* 20 *************************************************************************************************** 21 * Platform-specific directives and type declarations 22 *************************************************************************************************** 23 */ 24 25 /* Platform-specific calling convention macros. 26 * 27 * Platforms should define these so that Vulkan clients call Vulkan commands 28 * with the same calling conventions that the Vulkan implementation expects. 29 * 30 * VKAPI_ATTR - Placed before the return type in function declarations. 31 * Useful for C++11 and GCC/Clang-style function attribute syntax. 32 * VKAPI_CALL - Placed after the return type in function declarations. 33 * Useful for MSVC-style calling convention syntax. 34 * VKAPI_PTR - Placed between the '(' and '*' in function pointer types. 35 * 36 * Function declaration: VKAPI_ATTR void VKAPI_CALL vkCommand(void); 37 * Function pointer type: typedef void (VKAPI_PTR *PFN_vkCommand)(void); 38 */ 39 #if defined(_WIN32) 40 // On Windows, Vulkan commands use the stdcall convention 41 #define VKAPI_ATTR 42 #define VKAPI_CALL __stdcall 43 #define VKAPI_PTR VKAPI_CALL 44 #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7 45 #error "Vulkan isn't supported for the 'armeabi' NDK ABI" 46 #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE) 47 // On Android 32-bit ARM targets, Vulkan functions use the "hardfloat" 48 // calling convention, i.e. float parameters are passed in registers. This 49 // is true even if the rest of the application passes floats on the stack, 50 // as it does by default when compiling for the armeabi-v7a NDK ABI. 51 #define VKAPI_ATTR __attribute__((pcs("aapcs-vfp"))) 52 #define VKAPI_CALL 53 #define VKAPI_PTR VKAPI_ATTR 54 #else 55 // On other platforms, use the default calling convention 56 #define VKAPI_ATTR 57 #define VKAPI_CALL 58 #define VKAPI_PTR 59 #endif 60 61 #include <stddef.h> 62 63 #if !defined(VK_NO_STDINT_H) 64 #if defined(_MSC_VER) && (_MSC_VER < 1600) 65 typedef signed __int8 int8_t; 66 typedef unsigned __int8 uint8_t; 67 typedef signed __int16 int16_t; 68 typedef unsigned __int16 uint16_t; 69 typedef signed __int32 int32_t; 70 typedef unsigned __int32 uint32_t; 71 typedef signed __int64 int64_t; 72 typedef unsigned __int64 uint64_t; 73 #else 74 #include <stdint.h> 75 #endif 76 #endif // !defined(VK_NO_STDINT_H) 77 78 #ifdef __cplusplus 79 } // extern "C" 80 #endif // __cplusplus 81 82 #endif