SDL_x11vulkan.c
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/*
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: */
VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR
Definition: vulkan.h:212
SDL_strlcpy
#define SDL_strlcpy
Definition: SDL_dynapi_overrides.h:394
VK_KHR_SURFACE_EXTENSION_NAME
#define VK_KHR_SURFACE_EXTENSION_NAME
Definition: vulkan.h:3416
SDL_VideoDevice::vulkan_config
struct SDL_VideoDevice::@35 vulkan_config
SDL_TRUE
Definition: SDL_stdinc.h:142
result
GLuint64EXT * result
Definition: SDL_opengl_glext.h:9432
names
GLuint GLuint * names
Definition: SDL_opengl_glext.h:4956
count
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
SDL_VideoData::display
struct wl_display * display
Definition: SDL_waylandvideo.h:40
SDL_FALSE
Definition: SDL_stdinc.h:141
surface
EGLSurface surface
Definition: eglext.h:248
SDL_VideoDevice::driverdata
void * driverdata
Definition: SDL_sysvideo.h:377
VkExtensionProperties
Definition: vulkan.h:1682
vkGetInstanceProcAddr
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vkGetInstanceProcAddr(VkInstance instance, const char *pName)
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:181
SDL_LoadObject
#define SDL_LoadObject
Definition: SDL_dynapi_overrides.h:232
SDL_UnloadObject
#define SDL_UnloadObject
Definition: SDL_dynapi_overrides.h:234
PFN_vkGetInstanceProcAddr
PFN_vkVoidFunction(VKAPI_PTR * PFN_vkGetInstanceProcAddr)(VkInstance instance, const char *pName)
Definition: vulkan.h:2484
VK_NULL_HANDLE
#define VK_NULL_HANDLE
Definition: vulkan.h:49
VkResult
VkResult
Definition: vulkan.h:122
SDL_WindowData
Definition: SDL_androidwindow.h:35
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
SDL_VideoDevice::loader_path
char loader_path[256]
Definition: SDL_sysvideo.h:371
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR
Definition: vulkan.h:211
VK_SUCCESS
Definition: vulkan.h:123
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
SDL_x11vulkan.h
SDL_getenv
#define SDL_getenv
Definition: SDL_dynapi_overrides.h:378
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
NULL
#define NULL
Definition: begin_code.h:164
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:139
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_loadso.h
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_VideoDevice::vkEnumerateInstanceExtensionProperties
PFN_vkEnumerateInstanceExtensionProperties vkEnumerateInstanceExtensionProperties
Definition: SDL_sysvideo.h:369
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_VideoDevice::vkGetInstanceProcAddr
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr
Definition: SDL_sysvideo.h:368
SDL_x11video.h
SDL_VideoData
Definition: SDL_androidvideo.h:35
SDL_arraysize
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:93
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3730
SDL_strcmp
#define SDL_strcmp
Definition: SDL_dynapi_overrides.h:417
SDL_LoadFunction
void * SDL_LoadFunction(void *handle, const char *name)
SDL_Window::driverdata
void * driverdata
Definition: SDL_sysvideo.h:111
PFN_vkEnumerateInstanceExtensionProperties
VkResult(VKAPI_PTR * PFN_vkEnumerateInstanceExtensionProperties)(const char *pLayerName, uint32_t *pPropertyCount, VkExtensionProperties *pProperties)
Definition: vulkan.h:2488
SDL_VideoDevice::loader_handle
void * loader_handle
Definition: SDL_sysvideo.h:372
SDL_assert.h