Atlas - SDL_windowsvulkan.c
Home / ext / SDL2 / src / video / windows Lines: 1 | Size: 6326 bytes [Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)][FILE BEGIN]1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2018 Sam Lantinga <[email protected]> 4 5 This software is provided 'as-is', without any express or implied 6 warranty. In no event will the authors be held liable for any damages 7 arising from the use of this software. 8 9 Permission is granted to anyone to use this software for any purpose, 10 including commercial applications, and to alter it and redistribute it 11 freely, subject to the following restrictions: 12 13 1. The origin of this software must not be misrepresented; you must not 14 claim that you wrote the original software. If you use this software 15 in a product, an acknowledgment in the product documentation would be 16 appreciated but is not required. 17 2. Altered source versions must be plainly marked as such, and must not be 18 misrepresented as being the original software. 19 3. This notice may not be removed or altered from any source distribution. 20*/ 21 22/* 23 * @author Mark Callow, www.edgewise-consulting.com. Based on Jacob Lifshay's 24 * SDL_x11vulkan.c. 25 */ 26 27#include "../../SDL_internal.h" 28 29#if SDL_VIDEO_VULKAN && SDL_VIDEO_DRIVER_WINDOWS 30 31#include "SDL_windowsvideo.h" 32#include "SDL_windowswindow.h" 33#include "SDL_assert.h" 34 35#include "SDL_loadso.h" 36#include "SDL_windowsvulkan.h" 37#include "SDL_syswm.h" 38 39int WIN_Vulkan_LoadLibrary(_THIS, const char *path) 40{ 41 VkExtensionProperties *extensions = NULL; 42 Uint32 extensionCount = 0; 43 Uint32 i; 44 SDL_bool hasSurfaceExtension = SDL_FALSE; 45 SDL_bool hasWin32SurfaceExtension = SDL_FALSE; 46 PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL; 47 if(_this->vulkan_config.loader_handle) 48 return SDL_SetError("Vulkan already loaded"); 49 50 /* Load the Vulkan loader library */ 51 if(!path) 52 path = SDL_getenv("SDL_VULKAN_LIBRARY"); 53 if(!path) 54 path = "vulkan-1.dll"; 55 _this->vulkan_config.loader_handle = SDL_LoadObject(path); 56 if(!_this->vulkan_config.loader_handle) 57 return -1; 58 SDL_strlcpy(_this->vulkan_config.loader_path, path, 59 SDL_arraysize(_this->vulkan_config.loader_path)); 60 vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_LoadFunction( 61 _this->vulkan_config.loader_handle, "vkGetInstanceProcAddr"); 62 if(!vkGetInstanceProcAddr) 63 goto fail; 64 _this->vulkan_config.vkGetInstanceProcAddr = (void *)vkGetInstanceProcAddr; 65 _this->vulkan_config.vkEnumerateInstanceExtensionProperties = 66 (void *)((PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr)( 67 VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties"); 68 if(!_this->vulkan_config.vkEnumerateInstanceExtensionProperties) 69 goto fail; 70 extensions = SDL_Vulkan_CreateInstanceExtensionsList( 71 (PFN_vkEnumerateInstanceExtensionProperties) 72 _this->vulkan_config.vkEnumerateInstanceExtensionProperties, 73 &extensionCount); 74 if(!extensions) 75 goto fail; 76 for(i = 0; i < extensionCount; i++) 77 { 78 if(SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) 79 hasSurfaceExtension = SDL_TRUE; 80 else if(SDL_strcmp(VK_KHR_WIN32_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) 81 hasWin32SurfaceExtension = SDL_TRUE; 82 } 83 SDL_free(extensions); 84 if(!hasSurfaceExtension) 85 { 86 SDL_SetError("Installed Vulkan doesn't implement the " 87 VK_KHR_SURFACE_EXTENSION_NAME " extension"); 88 goto fail; 89 } 90 else if(!hasWin32SurfaceExtension) 91 { 92 SDL_SetError("Installed Vulkan doesn't implement the " 93 VK_KHR_WIN32_SURFACE_EXTENSION_NAME "extension"); 94 goto fail; 95 } 96 return 0; 97 98fail: 99 SDL_UnloadObject(_this->vulkan_config.loader_handle); 100 _this->vulkan_config.loader_handle = NULL; 101 return -1; 102} 103 104void WIN_Vulkan_UnloadLibrary(_THIS) 105{ 106 if(_this->vulkan_config.loader_handle) 107 { 108 SDL_UnloadObject(_this->vulkan_config.loader_handle); 109 _this->vulkan_config.loader_handle = NULL; 110 } 111} 112 113SDL_bool WIN_Vulkan_GetInstanceExtensions(_THIS, 114 SDL_Window *window, 115 unsigned *count, 116 const char **names) 117{ 118 static const char *const extensionsForWin32[] = { 119 VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_WIN32_SURFACE_EXTENSION_NAME 120 }; 121 if(!_this->vulkan_config.loader_handle) 122 { 123 SDL_SetError("Vulkan is not loaded"); 124 return SDL_FALSE; 125 } 126 return SDL_Vulkan_GetInstanceExtensions_Helper( 127 count, names, SDL_arraysize(extensionsForWin32), 128 extensionsForWin32); 129} 130 131SDL_bool WIN_Vulkan_CreateSurface(_THIS, 132 SDL_Window *window, 133 VkInstance instance, 134 VkSurfaceKHR *surface) 135{ 136 SDL_WindowData *windowData = (SDL_WindowData *)window->driverdata; 137 PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = 138 (PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr; 139 PFN_vkCreateWin32SurfaceKHR vkCreateWin32SurfaceKHR = 140 (PFN_vkCreateWin32SurfaceKHR)vkGetInstanceProcAddr( 141 (VkInstance)instance, 142 "vkCreateWin32SurfaceKHR"); 143 VkWin32SurfaceCreateInfoKHR createInfo; 144 VkResult result; 145 146 if(!_this->vulkan_config.loader_handle) 147 { 148 SDL_SetError("Vulkan is not loaded"); 149 return SDL_FALSE; 150 } 151 152 if(!vkCreateWin32SurfaceKHR) 153 { 154 SDL_SetError(VK_KHR_WIN32_SURFACE_EXTENSION_NAME 155 " extension is not enabled in the Vulkan instance."); 156 return SDL_FALSE; 157 } 158 createInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR; 159 createInfo.pNext = NULL; 160 createInfo.flags = 0; 161 createInfo.hinstance = windowData->hinstance; 162 createInfo.hwnd = windowData->hwnd; 163 result = vkCreateWin32SurfaceKHR(instance, &createInfo, 164 NULL, surface); 165 if(result != VK_SUCCESS) 166 { 167 SDL_SetError("vkCreateWin32SurfaceKHR failed: %s", 168 SDL_Vulkan_GetResultString(result)); 169 return SDL_FALSE; 170 } 171 return SDL_TRUE; 172} 173 174#endif 175 176/* vi: set ts=4 sw=4 expandtab: */ 177[FILE END](C) 2025 0x4248 (C) 2025 4248 Media and 4248 Systems, All part of 0x4248 See LICENCE files for more information. 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