1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
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: */
|
