| 1 | // |
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| 2 | // File: vk_platform.h |
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| 3 | // |
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| 4 | /* |
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| 5 | ** Copyright 2014-2022 The Khronos Group Inc. |
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| 6 | ** |
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| 7 | ** SPDX-License-Identifier: Apache-2.0 |
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| 8 | */ |
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| 9 | |
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| 10 | |
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| 11 | #ifndef VK_PLATFORM_H_ |
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| 12 | #define VK_PLATFORM_H_ |
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| 13 | |
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| 14 | #ifdef __cplusplus |
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| 15 | extern "C" |
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| 16 | { |
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| 17 | #endif // __cplusplus |
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| 18 | |
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| 19 | /* |
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| 20 | *************************************************************************************************** |
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| 21 | * Platform-specific directives and type declarations |
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| 22 | *************************************************************************************************** |
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| 23 | */ |
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| 24 | |
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| 25 | /* Platform-specific calling convention macros. |
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| 26 | * |
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| 27 | * Platforms should define these so that Vulkan clients call Vulkan commands |
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| 28 | * with the same calling conventions that the Vulkan implementation expects. |
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| 29 | * |
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| 30 | * VKAPI_ATTR - Placed before the return type in function declarations. |
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| 31 | * Useful for C++11 and GCC/Clang-style function attribute syntax. |
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| 32 | * VKAPI_CALL - Placed after the return type in function declarations. |
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| 33 | * Useful for MSVC-style calling convention syntax. |
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| 34 | * VKAPI_PTR - Placed between the '(' and '*' in function pointer types. |
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| 35 | * |
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| 36 | * Function declaration: VKAPI_ATTR void VKAPI_CALL vkCommand(void); |
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| 37 | * Function pointer type: typedef void (VKAPI_PTR *PFN_vkCommand)(void); |
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| 38 | */ |
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| 39 | #if defined(_WIN32) |
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| 40 | // On Windows, Vulkan commands use the stdcall convention |
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| 41 | #define VKAPI_ATTR |
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| 42 | #define VKAPI_CALL __stdcall |
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| 43 | #define VKAPI_PTR VKAPI_CALL |
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| 44 | #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7 |
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| 45 | #error "Vulkan is not supported for the 'armeabi' NDK ABI" |
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| 46 | #elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE) |
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| 47 | // On Android 32-bit ARM targets, Vulkan functions use the "hardfloat" |
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| 48 | // calling convention, i.e. float parameters are passed in registers. This |
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| 49 | // is true even if the rest of the application passes floats on the stack, |
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| 50 | // as it does by default when compiling for the armeabi-v7a NDK ABI. |
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| 51 | #define VKAPI_ATTR __attribute__((pcs("aapcs-vfp"))) |
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| 52 | #define VKAPI_CALL |
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| 53 | #define VKAPI_PTR VKAPI_ATTR |
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| 54 | #else |
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| 55 | // On other platforms, use the default calling convention |
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| 56 | #define VKAPI_ATTR |
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| 57 | #define VKAPI_CALL |
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| 58 | #define VKAPI_PTR |
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| 59 | #endif |
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| 60 | |
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| 61 | #if !defined(VK_NO_STDDEF_H) |
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| 62 | #include <stddef.h> |
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| 63 | #endif // !defined(VK_NO_STDDEF_H) |
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| 64 | |
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| 65 | #if !defined(VK_NO_STDINT_H) |
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| 66 | #if defined(_MSC_VER) && (_MSC_VER < 1600) |
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| 67 | typedef signed __int8 int8_t; |
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| 68 | typedef unsigned __int8 uint8_t; |
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| 69 | typedef signed __int16 int16_t; |
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| 70 | typedef unsigned __int16 uint16_t; |
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| 71 | typedef signed __int32 int32_t; |
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| 72 | typedef unsigned __int32 uint32_t; |
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| 73 | typedef signed __int64 int64_t; |
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| 74 | typedef unsigned __int64 uint64_t; |
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| 75 | #else |
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| 76 | #include <stdint.h> |
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| 77 | #endif |
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| 78 | #endif // !defined(VK_NO_STDINT_H) |
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| 79 | |
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| 80 | #ifdef __cplusplus |
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| 81 | } // extern "C" |
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| 82 | #endif // __cplusplus |
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| 83 | |
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| 84 | #endif |
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| 85 | |
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