This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_x11video.c
307 lines (267 loc) · 8.69 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2010 Sam Lantinga
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
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "SDL_x11video.h"
30
#include "SDL_x11render.h"
31
#include "SDL_x11shape.h"
32
33
34
35
#if SDL_VIDEO_DRIVER_PANDORA
#include "SDL_x11opengles.h"
#endif
36
37
38
39
40
/* Initialization/Query functions */
static int X11_VideoInit(_THIS);
static void X11_VideoQuit(_THIS);
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
/* Find out what class name we should use */
static char *
get_classname()
{
char *spot;
#if defined(__LINUX__) || defined(__FREEBSD__)
char procfile[1024];
char linkfile[1024];
int linksize;
#endif
/* First allow environment variable override */
spot = SDL_getenv("SDL_VIDEO_X11_WMCLASS");
if (spot) {
return SDL_strdup(spot);
}
/* Next look at the application's executable name */
#if defined(__LINUX__) || defined(__FREEBSD__)
#if defined(__LINUX__)
SDL_snprintf(procfile, SDL_arraysize(procfile), "/proc/%d/exe", getpid());
#elif defined(__FREEBSD__)
SDL_snprintf(procfile, SDL_arraysize(procfile), "/proc/%d/file",
getpid());
#else
#error Where can we find the executable name?
#endif
linksize = readlink(procfile, linkfile, sizeof(linkfile) - 1);
if (linksize > 0) {
linkfile[linksize] = '\0';
spot = SDL_strrchr(linkfile, '/');
if (spot) {
return SDL_strdup(spot + 1);
} else {
return SDL_strdup(linkfile);
}
}
#endif /* __LINUX__ || __FREEBSD__ */
/* Finally use the default we've used forever */
return SDL_strdup("SDL_App");
}
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
/* X11 driver bootstrap functions */
static int
X11_Available(void)
{
Display *display = NULL;
if (SDL_X11_LoadSymbols()) {
display = XOpenDisplay(NULL);
if (display != NULL) {
XCloseDisplay(display);
}
SDL_X11_UnloadSymbols();
}
return (display != NULL);
}
static void
X11_DeleteDevice(SDL_VideoDevice * device)
{
SDL_VideoData *data = (SDL_VideoData *) device->driverdata;
if (data->display) {
XCloseDisplay(data->display);
}
107
SDL_free(data->windowlist);
108
SDL_free(device->driverdata);
109
110
111
#if SDL_VIDEO_DRIVER_PANDORA
SDL_free(device->gles_data);
#endif
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
SDL_free(device);
SDL_X11_UnloadSymbols();
}
static SDL_VideoDevice *
X11_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
SDL_VideoData *data;
const char *display = NULL; /* Use the DISPLAY environment variable */
if (!SDL_X11_LoadSymbols()) {
return NULL;
}
/* Initialize all variables that we clean on shutdown */
device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
130
131
132
if (!device) {
SDL_OutOfMemory();
return NULL;
133
}
134
135
data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
if (!data) {
136
SDL_OutOfMemory();
137
SDL_free(device);
138
139
140
141
return NULL;
}
device->driverdata = data;
142
143
144
145
146
147
148
149
#if SDL_VIDEO_DRIVER_PANDORA
device->gles_data = (struct SDL_PrivateGLESData *) SDL_calloc(1, sizeof(SDL_PrivateGLESData));
if (!device->gles_data) {
SDL_OutOfMemory();
return NULL;
}
#endif
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
/* FIXME: Do we need this?
if ( (SDL_strncmp(XDisplayName(display), ":", 1) == 0) ||
(SDL_strncmp(XDisplayName(display), "unix:", 5) == 0) ) {
local_X11 = 1;
} else {
local_X11 = 0;
}
*/
data->display = XOpenDisplay(display);
#if defined(__osf__) && defined(SDL_VIDEO_DRIVER_X11_DYNAMIC)
/* On Tru64 if linking without -lX11, it fails and you get following message.
* Xlib: connection to ":0.0" refused by server
* Xlib: XDM authorization key matches an existing client!
*
* It succeeds if retrying 1 second later
* or if running xhost +localhost on shell.
*/
if (data->display == NULL) {
SDL_Delay(1000);
data->display = XOpenDisplay(display);
}
#endif
if (data->display == NULL) {
SDL_free(device);
SDL_SetError("Couldn't open X11 display");
return NULL;
}
#ifdef X11_DEBUG
XSynchronize(data->display, True);
#endif
/* Set the function pointers */
device->VideoInit = X11_VideoInit;
device->VideoQuit = X11_VideoQuit;
device->GetDisplayModes = X11_GetDisplayModes;
device->SetDisplayMode = X11_SetDisplayMode;
186
187
device->SetDisplayGammaRamp = X11_SetDisplayGammaRamp;
device->GetDisplayGammaRamp = X11_GetDisplayGammaRamp;
188
device->SuspendScreenSaver = X11_SuspendScreenSaver;
189
device->PumpEvents = X11_PumpEvents;
190
191
192
193
device->CreateWindow = X11_CreateWindow;
device->CreateWindowFrom = X11_CreateWindowFrom;
device->SetWindowTitle = X11_SetWindowTitle;
194
device->SetWindowIcon = X11_SetWindowIcon;
195
196
197
198
199
200
201
202
203
204
205
device->SetWindowPosition = X11_SetWindowPosition;
device->SetWindowSize = X11_SetWindowSize;
device->ShowWindow = X11_ShowWindow;
device->HideWindow = X11_HideWindow;
device->RaiseWindow = X11_RaiseWindow;
device->MaximizeWindow = X11_MaximizeWindow;
device->MinimizeWindow = X11_MinimizeWindow;
device->RestoreWindow = X11_RestoreWindow;
device->SetWindowGrab = X11_SetWindowGrab;
device->DestroyWindow = X11_DestroyWindow;
device->GetWindowWMInfo = X11_GetWindowWMInfo;
206
207
208
device->shape_driver.CreateShaper = X11_CreateShaper;
device->shape_driver.SetWindowShape = X11_SetWindowShape;
device->shape_driver.ResizeWindowShape = X11_ResizeWindowShape;
209
#ifdef SDL_VIDEO_OPENGL_GLX
210
211
device->GL_LoadLibrary = X11_GL_LoadLibrary;
device->GL_GetProcAddress = X11_GL_GetProcAddress;
212
device->GL_UnloadLibrary = X11_GL_UnloadLibrary;
213
214
215
216
217
218
219
device->GL_CreateContext = X11_GL_CreateContext;
device->GL_MakeCurrent = X11_GL_MakeCurrent;
device->GL_SetSwapInterval = X11_GL_SetSwapInterval;
device->GL_GetSwapInterval = X11_GL_GetSwapInterval;
device->GL_SwapWindow = X11_GL_SwapWindow;
device->GL_DeleteContext = X11_GL_DeleteContext;
#endif
220
221
222
223
224
225
226
227
228
229
230
#if SDL_VIDEO_DRIVER_PANDORA
device->GL_LoadLibrary = X11_GLES_LoadLibrary;
device->GL_GetProcAddress = X11_GLES_GetProcAddress;
device->GL_UnloadLibrary = X11_GLES_UnloadLibrary;
device->GL_CreateContext = X11_GLES_CreateContext;
device->GL_MakeCurrent = X11_GLES_MakeCurrent;
device->GL_SetSwapInterval = X11_GLES_SetSwapInterval;
device->GL_GetSwapInterval = X11_GLES_GetSwapInterval;
device->GL_SwapWindow = X11_GLES_SwapWindow;
device->GL_DeleteContext = X11_GLES_DeleteContext;
#endif
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
device->free = X11_DeleteDevice;
return device;
}
VideoBootStrap X11_bootstrap = {
"x11", "SDL X11 video driver",
X11_Available, X11_CreateDevice
};
int
X11_VideoInit(_THIS)
{
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
/* Get the window class name, usually the name of the application */
data->classname = get_classname();
/* Open a connection to the X input manager */
#ifdef X_HAVE_UTF8_STRING
if (SDL_X11_HAVE_UTF8) {
data->im =
XOpenIM(data->display, NULL, data->classname, data->classname);
}
#endif
/* Look up some useful Atoms */
data->WM_DELETE_WINDOW =
XInternAtom(data->display, "WM_DELETE_WINDOW", False);
263
264
265
if (X11_InitModes(_this) < 0) {
return -1;
}
266
267
268
269
270
#if SDL_VIDEO_RENDER_X11
X11_AddRenderDriver(_this);
#endif
271
272
273
if (X11_InitKeyboard(_this) != 0) {
return -1;
}
274
275
276
277
278
279
280
281
X11_InitMouse(_this);
return 0;
}
void
X11_VideoQuit(_THIS)
{
282
283
284
285
286
287
288
289
290
291
292
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
if (data->classname) {
SDL_free(data->classname);
}
#ifdef X_HAVE_UTF8_STRING
if (data->im) {
XCloseIM(data->im);
}
#endif
293
294
295
296
297
X11_QuitModes(_this);
X11_QuitKeyboard(_this);
X11_QuitMouse(_this);
}
298
299
300
SDL_bool
X11_UseDirectColorVisuals()
{
301
302
303
304
/* Once we implement DirectColor colormaps and gamma ramp support...
return SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ? SDL_FALSE : SDL_TRUE;
*/
return SDL_FALSE;
305
306
}
307
/* vim: set ts=4 sw=4 expandtab: */