1 | // |
2 | // File: vk_platform.h |
3 | // |
4 | /* |
5 | ** Copyright 2014-2022 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 is not 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 | #if !defined(VK_NO_STDDEF_H) |
62 | #include <stddef.h> |
63 | #endif // !defined(VK_NO_STDDEF_H) |
64 | |
65 | #if !defined(VK_NO_STDINT_H) |
66 | #if defined(_MSC_VER) && (_MSC_VER < 1600) |
67 | typedef signed __int8 int8_t; |
68 | typedef unsigned __int8 uint8_t; |
69 | typedef signed __int16 int16_t; |
70 | typedef unsigned __int16 uint16_t; |
71 | typedef signed __int32 int32_t; |
72 | typedef unsigned __int32 uint32_t; |
73 | typedef signed __int64 int64_t; |
74 | typedef unsigned __int64 uint64_t; |
75 | #else |
76 | #include <stdint.h> |
77 | #endif |
78 | #endif // !defined(VK_NO_STDINT_H) |
79 | |
80 | #ifdef __cplusplus |
81 | } // extern "C" |
82 | #endif // __cplusplus |
83 | |
84 | #endif |
85 | |