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 25 extern "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