SDL_mirvulkan.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.
*/
/*
* @author Mark Callow, www.edgewise-consulting.com. Based on Jacob Lifshay's
* SDL_x11vulkan.c.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_VULKAN && SDL_VIDEO_DRIVER_MIR
#include "SDL_mirvideo.h"
#include "SDL_mirwindow.h"
#include "SDL_assert.h"
#include "SDL_loadso.h"
#include "SDL_mirvulkan.h"
#include "SDL_syswm.h"
int MIR_Vulkan_LoadLibrary(_THIS, const char *path)
{
VkExtensionProperties *extensions = NULL;
Uint32 extensionCount = 0;
SDL_bool hasSurfaceExtension = SDL_FALSE;
SDL_bool hasMIRSurfaceExtension = SDL_FALSE;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL;
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(Uint32 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_MIR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
hasMIRSurfaceExtension = SDL_TRUE;
}
SDL_free(extensions);
if(!hasSurfaceExtension)
{
SDL_SetError("Installed Vulkan doesn't implement the "
VK_KHR_SURFACE_EXTENSION_NAME " extension");
goto fail;
}
else if(!hasMIRSurfaceExtension)
{
SDL_SetError("Installed Vulkan doesn't implement the "
VK_KHR_MIR_SURFACE_EXTENSION_NAME "extension");
goto fail;
}
return 0;
fail:
SDL_UnloadObject(_this->vulkan_config.loader_handle);
_this->vulkan_config.loader_handle = NULL;
return -1;
}
void MIR_Vulkan_UnloadLibrary(_THIS)
{
if(_this->vulkan_config.loader_handle)
{
SDL_UnloadObject(_this->vulkan_config.loader_handle);
_this->vulkan_config.loader_handle = NULL;
}
}
SDL_bool MIR_Vulkan_GetInstanceExtensions(_THIS,
SDL_Window *window,
unsigned *count,
const char **names)
{
static const char *const extensionsForMir[] = {
VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_MIR_SURFACE_EXTENSION_NAME
};
if(!_this->vulkan_config.loader_handle)
{
SDL_SetError("Vulkan is not loaded");
return SDL_FALSE;
}
return SDL_Vulkan_GetInstanceExtensions_Helper(
count, names, SDL_arraysize(extensionsForMir),
extensionsForMir);
}
SDL_bool MIR_Vulkan_CreateSurface(_THIS,
SDL_Window *window,
VkInstance instance,
VkSurfaceKHR *surface)
{
MIR_Window *windowData = (MIR_Window *)window->driverdata;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr =
(PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr;
PFN_vkCreateMirSurfaceKHR vkCreateMirSurfaceKHR =
(PFN_vkCreateMirSurfaceKHR)vkGetInstanceProcAddr(
(VkInstance)instance,
"vkCreateMirSurfaceKHR");
VkMirSurfaceCreateInfoKHR createInfo;
VkResult result;
if(!_this->vulkan_config.loader_handle)
{
SDL_SetError("Vulkan is not loaded");
return SDL_FALSE;
}
if(!vkCreateMirSurfaceKHR)
{
SDL_SetError(VK_KHR_MIR_SURFACE_EXTENSION_NAME
" extension is not enabled in the Vulkan instance.");
return SDL_FALSE;
}
SDL_zero(createInfo);
createInfo.sType = VK_STRUCTURE_TYPE_MIR_SURFACE_CREATE_INFO_KHR;
createInfo.pNext = NULL;
createInfo.flags = 0;
createInfo.connection = windowData->mir_data->connection;
createInfo.mirSurface = windowData->window;
result = vkCreateMirSurfaceKHR(instance, &createInfo,
NULL, surface);
if(result != VK_SUCCESS)
{
SDL_SetError("vkCreateMirSurfaceKHR failed: %s",
SDL_Vulkan_GetResultString(result));
return SDL_FALSE;
}
return SDL_TRUE;
}
#endif
/* vim: set ts=4 sw=4 expandtab: */
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
SDL_mirvideo.h
count
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
SDL_FALSE
Definition: SDL_stdinc.h:141
surface
EGLSurface surface
Definition: eglext.h:248
VkExtensionProperties
Definition: vulkan.h:1682
SDL_mirwindow.h
MIR_Window
Definition: SDL_mirwindow.h:34
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
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
SDL_VideoDevice::loader_path
char loader_path[256]
Definition: SDL_sysvideo.h:371
MIR_Data::connection
MirConnection * connection
Definition: SDL_mirvideo.h:37
SDL_mirvulkan.h
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
MIR_Window::mir_data
MIR_Data * mir_data
Definition: SDL_mirwindow.h:36
VK_SUCCESS
Definition: vulkan.h:123
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
MIR_Window::window
MirWindow * window
Definition: SDL_mirwindow.h:38
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_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_syswm.h
SDL_VideoDevice::loader_handle
void * loader_handle
Definition: SDL_sysvideo.h:372
SDL_assert.h
VK_STRUCTURE_TYPE_MIR_SURFACE_CREATE_INFO_KHR
Definition: vulkan.h:214