diff options
Diffstat (limited to 'Source/external/SDL2/src/video/x11/SDL_x11vulkan.c')
| -rw-r--r-- | Source/external/SDL2/src/video/x11/SDL_x11vulkan.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/video/x11/SDL_x11vulkan.c b/Source/external/SDL2/src/video/x11/SDL_x11vulkan.c new file mode 100644 index 0000000..ec43aef --- /dev/null +++ b/Source/external/SDL2/src/video/x11/SDL_x11vulkan.c @@ -0,0 +1,243 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +#if SDL_VIDEO_VULKAN && SDL_VIDEO_DRIVER_X11 + +#include "SDL_x11video.h" +#include "SDL_assert.h" + +#include "SDL_loadso.h" +#include "SDL_x11vulkan.h" + +#include <X11/Xlib.h> +/*#include <xcb/xcb.h>*/ +/* +typedef uint32_t xcb_window_t; +typedef uint32_t xcb_visualid_t; +*/ + +int X11_Vulkan_LoadLibrary(_THIS, const char *path) +{ + SDL_VideoData *videoData = (SDL_VideoData *)_this->driverdata; + VkExtensionProperties *extensions = NULL; + Uint32 extensionCount = 0; + SDL_bool hasSurfaceExtension = SDL_FALSE; + SDL_bool hasXlibSurfaceExtension = SDL_FALSE; + SDL_bool hasXCBSurfaceExtension = SDL_FALSE; + PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL; + Uint32 i; + if(_this->vulkan_config.loader_handle) + return SDL_SetError("Vulkan already loaded"); + + /* Load the Vulkan loader library */ + if(!path) + path = SDL_getenv("SDL_VULKAN_LIBRARY"); + if(!path) + path = "libvulkan.so.1"; + _this->vulkan_config.loader_handle = SDL_LoadObject(path); + if(!_this->vulkan_config.loader_handle) + return -1; + SDL_strlcpy(_this->vulkan_config.loader_path, path, SDL_arraysize(_this->vulkan_config.loader_path)); + vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_LoadFunction( + _this->vulkan_config.loader_handle, "vkGetInstanceProcAddr"); + if(!vkGetInstanceProcAddr) + goto fail; + _this->vulkan_config.vkGetInstanceProcAddr = (void *)vkGetInstanceProcAddr; + _this->vulkan_config.vkEnumerateInstanceExtensionProperties = + (void *)((PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr)( + VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties"); + if(!_this->vulkan_config.vkEnumerateInstanceExtensionProperties) + goto fail; + extensions = SDL_Vulkan_CreateInstanceExtensionsList( + (PFN_vkEnumerateInstanceExtensionProperties) + _this->vulkan_config.vkEnumerateInstanceExtensionProperties, + &extensionCount); + if(!extensions) + goto fail; + for(i = 0; i < extensionCount; i++) + { + if(SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) + hasSurfaceExtension = SDL_TRUE; + else if(SDL_strcmp(VK_KHR_XCB_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) + hasXCBSurfaceExtension = SDL_TRUE; + else if(SDL_strcmp(VK_KHR_XLIB_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) + hasXlibSurfaceExtension = SDL_TRUE; + } + SDL_free(extensions); + if(!hasSurfaceExtension) + { + SDL_SetError("Installed Vulkan doesn't implement the " + VK_KHR_SURFACE_EXTENSION_NAME " extension"); + goto fail; + } + if(hasXlibSurfaceExtension) + { + videoData->vulkan_xlib_xcb_library = NULL; + } + else if(!hasXCBSurfaceExtension) + { + SDL_SetError("Installed Vulkan doesn't implement either the " + VK_KHR_XCB_SURFACE_EXTENSION_NAME "extension or the " + VK_KHR_XLIB_SURFACE_EXTENSION_NAME " extension"); + goto fail; + } + else + { + const char *libX11XCBLibraryName = SDL_getenv("SDL_X11_XCB_LIBRARY"); + if(!libX11XCBLibraryName) + libX11XCBLibraryName = "libX11-xcb.so"; + videoData->vulkan_xlib_xcb_library = SDL_LoadObject(libX11XCBLibraryName); + if(!videoData->vulkan_xlib_xcb_library) + goto fail; + videoData->vulkan_XGetXCBConnection = + SDL_LoadFunction(videoData->vulkan_xlib_xcb_library, "XGetXCBConnection"); + if(!videoData->vulkan_XGetXCBConnection) + { + SDL_UnloadObject(videoData->vulkan_xlib_xcb_library); + goto fail; + } + } + return 0; + +fail: + SDL_UnloadObject(_this->vulkan_config.loader_handle); + _this->vulkan_config.loader_handle = NULL; + return -1; +} + +void X11_Vulkan_UnloadLibrary(_THIS) +{ + SDL_VideoData *videoData = (SDL_VideoData *)_this->driverdata; + if(_this->vulkan_config.loader_handle) + { + if(videoData->vulkan_xlib_xcb_library) + SDL_UnloadObject(videoData->vulkan_xlib_xcb_library); + SDL_UnloadObject(_this->vulkan_config.loader_handle); + _this->vulkan_config.loader_handle = NULL; + } +} + +SDL_bool X11_Vulkan_GetInstanceExtensions(_THIS, + SDL_Window *window, + unsigned *count, + const char **names) +{ + SDL_VideoData *videoData = (SDL_VideoData *)_this->driverdata; + if(!_this->vulkan_config.loader_handle) + { + SDL_SetError("Vulkan is not loaded"); + return SDL_FALSE; + } + if(videoData->vulkan_xlib_xcb_library) + { + static const char *const extensionsForXCB[] = { + VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_XCB_SURFACE_EXTENSION_NAME, + }; + return SDL_Vulkan_GetInstanceExtensions_Helper( + count, names, SDL_arraysize(extensionsForXCB), extensionsForXCB); + } + else + { + static const char *const extensionsForXlib[] = { + VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_XLIB_SURFACE_EXTENSION_NAME, + }; + return SDL_Vulkan_GetInstanceExtensions_Helper( + count, names, SDL_arraysize(extensionsForXlib), extensionsForXlib); + } +} + +SDL_bool X11_Vulkan_CreateSurface(_THIS, + SDL_Window *window, + VkInstance instance, + VkSurfaceKHR *surface) +{ + SDL_VideoData *videoData = (SDL_VideoData *)_this->driverdata; + SDL_WindowData *windowData = (SDL_WindowData *)window->driverdata; + PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr; + if(!_this->vulkan_config.loader_handle) + { + SDL_SetError("Vulkan is not loaded"); + return SDL_FALSE; + } + vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr; + if(videoData->vulkan_xlib_xcb_library) + { + PFN_vkCreateXcbSurfaceKHR vkCreateXcbSurfaceKHR = + (PFN_vkCreateXcbSurfaceKHR)vkGetInstanceProcAddr((VkInstance)instance, + "vkCreateXcbSurfaceKHR"); + VkXcbSurfaceCreateInfoKHR createInfo; + VkResult result; + if(!vkCreateXcbSurfaceKHR) + { + SDL_SetError(VK_KHR_XCB_SURFACE_EXTENSION_NAME + " extension is not enabled in the Vulkan instance."); + return SDL_FALSE; + } + SDL_zero(createInfo); + createInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR; + createInfo.connection = videoData->vulkan_XGetXCBConnection(videoData->display); + if(!createInfo.connection) + { + SDL_SetError("XGetXCBConnection failed"); + return SDL_FALSE; + } + createInfo.window = (xcb_window_t)windowData->xwindow; + result = vkCreateXcbSurfaceKHR(instance, &createInfo, + NULL, surface); + if(result != VK_SUCCESS) + { + SDL_SetError("vkCreateXcbSurfaceKHR failed: %s", SDL_Vulkan_GetResultString(result)); + return SDL_FALSE; + } + return SDL_TRUE; + } + else + { + PFN_vkCreateXlibSurfaceKHR vkCreateXlibSurfaceKHR = + (PFN_vkCreateXlibSurfaceKHR)vkGetInstanceProcAddr((VkInstance)instance, + "vkCreateXlibSurfaceKHR"); + VkXlibSurfaceCreateInfoKHR createInfo; + VkResult result; + if(!vkCreateXlibSurfaceKHR) + { + SDL_SetError(VK_KHR_XLIB_SURFACE_EXTENSION_NAME + " extension is not enabled in the Vulkan instance."); + return SDL_FALSE; + } + SDL_zero(createInfo); + createInfo.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR; + createInfo.dpy = videoData->display; + createInfo.window = (xcb_window_t)windowData->xwindow; + result = vkCreateXlibSurfaceKHR(instance, &createInfo, + NULL, surface); + if(result != VK_SUCCESS) + { + SDL_SetError("vkCreateXlibSurfaceKHR failed: %s", SDL_Vulkan_GetResultString(result)); + return SDL_FALSE; + } + return SDL_TRUE; + } +} + +#endif + +/* vim: set ts=4 sw=4 expandtab: */ |