1//
2// File: vk_platform.h
3//
4/*
5** Copyright (c) 2014-2017 The Khronos Group Inc.
6**
7** Licensed under the Apache License, Version 2.0 (the "License");
8** you may not use this file except in compliance with the License.
9** You may obtain a copy of the License at
10**
11** http://www.apache.org/licenses/LICENSE-2.0
12**
13** Unless required by applicable law or agreed to in writing, software
14** distributed under the License is distributed on an "AS IS" BASIS,
15** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16** See the License for the specific language governing permissions and
17** limitations under the License.
18*/
19
20
21#ifndef VK_PLATFORM_H_
22#define VK_PLATFORM_H_
23
24#ifdef __cplusplus
25extern "C"
26{
27#endif // __cplusplus
28
29/*
30***************************************************************************************************
31* Platform-specific directives and type declarations
32***************************************************************************************************
33*/
34
35/* Platform-specific calling convention macros.
36 *
37 * Platforms should define these so that Vulkan clients call Vulkan commands
38 * with the same calling conventions that the Vulkan implementation expects.
39 *
40 * VKAPI_ATTR - Placed before the return type in function declarations.
41 * Useful for C++11 and GCC/Clang-style function attribute syntax.
42 * VKAPI_CALL - Placed after the return type in function declarations.
43 * Useful for MSVC-style calling convention syntax.
44 * VKAPI_PTR - Placed between the '(' and '*' in function pointer types.
45 *
46 * Function declaration: VKAPI_ATTR void VKAPI_CALL vkCommand(void);
47 * Function pointer type: typedef void (VKAPI_PTR *PFN_vkCommand)(void);
48 */
49#if defined(_WIN32)
50 // On Windows, Vulkan commands use the stdcall convention
51 #define VKAPI_ATTR
52 #define VKAPI_CALL __stdcall
53 #define VKAPI_PTR VKAPI_CALL
54#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7
55 #error "Vulkan isn't supported for the 'armeabi' NDK ABI"
56#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE)
57 // On Android 32-bit ARM targets, Vulkan functions use the "hardfloat"
58 // calling convention, i.e. float parameters are passed in registers. This
59 // is true even if the rest of the application passes floats on the stack,
60 // as it does by default when compiling for the armeabi-v7a NDK ABI.
61 #define VKAPI_ATTR __attribute__((pcs("aapcs-vfp")))
62 #define VKAPI_CALL
63 #define VKAPI_PTR VKAPI_ATTR
64#else
65 // On other platforms, use the default calling convention
66 #define VKAPI_ATTR
67 #define VKAPI_CALL
68 #define VKAPI_PTR
69#endif
70
71#include <stddef.h>
72
73#if !defined(VK_NO_STDINT_H)
74 #if defined(_MSC_VER) && (_MSC_VER < 1600)
75 typedef signed __int8 int8_t;
76 typedef unsigned __int8 uint8_t;
77 typedef signed __int16 int16_t;
78 typedef unsigned __int16 uint16_t;
79 typedef signed __int32 int32_t;
80 typedef unsigned __int32 uint32_t;
81 typedef signed __int64 int64_t;
82 typedef unsigned __int64 uint64_t;
83 #else
84 #include <stdint.h>
85 #endif
86#endif // !defined(VK_NO_STDINT_H)
87
88#ifdef __cplusplus
89} // extern "C"
90#endif // __cplusplus
91
92#endif
93