| // |
| // File: vk_platform.h |
| // |
| /* |
| ** Copyright 2014-2021 The Khronos Group Inc. |
| ** |
| ** SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| |
| #ifndef VK_PLATFORM_H_ |
| #define VK_PLATFORM_H_ |
| |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif // __cplusplus |
| |
| /* |
| *************************************************************************************************** |
| * Platform-specific directives and type declarations |
| *************************************************************************************************** |
| */ |
| |
| /* Platform-specific calling convention macros. |
| * |
| * Platforms should define these so that Vulkan clients call Vulkan commands |
| * with the same calling conventions that the Vulkan implementation expects. |
| * |
| * VKAPI_ATTR - Placed before the return type in function declarations. |
| * Useful for C++11 and GCC/Clang-style function attribute syntax. |
| * VKAPI_CALL - Placed after the return type in function declarations. |
| * Useful for MSVC-style calling convention syntax. |
| * VKAPI_PTR - Placed between the '(' and '*' in function pointer types. |
| * |
| * Function declaration: VKAPI_ATTR void VKAPI_CALL vkCommand(void); |
| * Function pointer type: typedef void (VKAPI_PTR *PFN_vkCommand)(void); |
| */ |
| #if defined(_WIN32) |
| // On Windows, Vulkan commands use the stdcall convention |
| #define VKAPI_ATTR |
| #define VKAPI_CALL __stdcall |
| #define VKAPI_PTR VKAPI_CALL |
| #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7 |
| #error "Vulkan isn't supported for the 'armeabi' NDK ABI" |
| #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE) |
| // On Android 32-bit ARM targets, Vulkan functions use the "hardfloat" |
| // calling convention, i.e. float parameters are passed in registers. This |
| // is true even if the rest of the application passes floats on the stack, |
| // as it does by default when compiling for the armeabi-v7a NDK ABI. |
| #define VKAPI_ATTR __attribute__((pcs("aapcs-vfp"))) |
| #define VKAPI_CALL |
| #define VKAPI_PTR VKAPI_ATTR |
| #else |
| // On other platforms, use the default calling convention |
| #define VKAPI_ATTR |
| #define VKAPI_CALL |
| #define VKAPI_PTR |
| #endif |
| |
| #if !defined(VK_NO_STDDEF_H) |
| #include <stddef.h> |
| #endif // !defined(VK_NO_STDDEF_H) |
| |
| #if !defined(VK_NO_STDINT_H) |
| #if defined(_MSC_VER) && (_MSC_VER < 1600) |
| typedef signed __int8 int8_t; |
| typedef unsigned __int8 uint8_t; |
| typedef signed __int16 int16_t; |
| typedef unsigned __int16 uint16_t; |
| typedef signed __int32 int32_t; |
| typedef unsigned __int32 uint32_t; |
| typedef signed __int64 int64_t; |
| typedef unsigned __int64 uint64_t; |
| #else |
| #include <stdint.h> |
| #endif |
| #endif // !defined(VK_NO_STDINT_H) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif // __cplusplus |
| |
| #endif |