Skip to content

Latest commit

 

History

History
888 lines (790 loc) · 28.7 KB

SDL_x11modes.c

File metadata and controls

888 lines (790 loc) · 28.7 KB
 
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
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 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_config.h"
#if SDL_VIDEO_DRIVER_X11
#include "SDL_hints.h"
#include "SDL_x11video.h"
#include "edid.h"
Aug 21, 2013
Aug 21, 2013
29
/* #define X11MODES_DEBUG */
30
31
32
33
34
35
36
37
38
39
40
/* I'm becoming more and more convinced that the application should never
* use XRandR, and it's the window manager's responsibility to track and
* manage display modes for fullscreen windows. Right now XRandR is completely
* broken with respect to window manager behavior on every window manager that
* I can find. For example, on Unity 3D if you show a fullscreen window while
* the resolution is changing (within ~250 ms) your window will retain the
* fullscreen state hint but be decorated and windowed.
*
* However, many people swear by it, so let them swear at it. :)
*/
Aug 21, 2013
Aug 21, 2013
41
/* #define XRANDR_DISABLED_BY_DEFAULT */
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
static int
get_visualinfo(Display * display, int screen, XVisualInfo * vinfo)
{
const char *visual_id = SDL_getenv("SDL_VIDEO_X11_VISUALID");
int depth;
/* Look for an exact visual, if requested */
if (visual_id) {
XVisualInfo *vi, template;
int nvis;
SDL_zero(template);
template.visualid = SDL_strtol(visual_id, NULL, 0);
Oct 18, 2013
Oct 18, 2013
57
vi = X11_XGetVisualInfo(display, VisualIDMask, &template, &nvis);
58
59
if (vi) {
*vinfo = *vi;
Oct 18, 2013
Oct 18, 2013
60
X11_XFree(vi);
61
62
63
64
65
66
return 0;
}
}
depth = DefaultDepth(display, screen);
if ((X11_UseDirectColorVisuals() &&
Oct 18, 2013
Oct 18, 2013
67
68
69
70
X11_XMatchVisualInfo(display, screen, depth, DirectColor, vinfo)) ||
X11_XMatchVisualInfo(display, screen, depth, TrueColor, vinfo) ||
X11_XMatchVisualInfo(display, screen, depth, PseudoColor, vinfo) ||
X11_XMatchVisualInfo(display, screen, depth, StaticColor, vinfo)) {
71
72
73
74
75
76
77
78
79
80
81
return 0;
}
return -1;
}
int
X11_GetVisualInfoFromVisual(Display * display, Visual * visual, XVisualInfo * vinfo)
{
XVisualInfo *vi;
int nvis;
Oct 18, 2013
Oct 18, 2013
82
83
vinfo->visualid = X11_XVisualIDFromVisual(visual);
vi = X11_XGetVisualInfo(display, VisualIDMask, vinfo, &nvis);
84
85
if (vi) {
*vinfo = *vi;
Oct 18, 2013
Oct 18, 2013
86
X11_XFree(vi);
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
return 0;
}
return -1;
}
Uint32
X11_GetPixelFormatFromVisualInfo(Display * display, XVisualInfo * vinfo)
{
if (vinfo->class == DirectColor || vinfo->class == TrueColor) {
int bpp;
Uint32 Rmask, Gmask, Bmask, Amask;
Rmask = vinfo->visual->red_mask;
Gmask = vinfo->visual->green_mask;
Bmask = vinfo->visual->blue_mask;
if (vinfo->depth == 32) {
Amask = (0xFFFFFFFF & ~(Rmask | Gmask | Bmask));
} else {
Amask = 0;
}
bpp = vinfo->depth;
if (bpp == 24) {
int i, n;
Oct 18, 2013
Oct 18, 2013
111
XPixmapFormatValues *p = X11_XListPixmapFormats(display, &n);
112
113
114
115
116
117
118
if (p) {
for (i = 0; i < n; ++i) {
if (p[i].depth == 24) {
bpp = p[i].bits_per_pixel;
break;
}
}
Oct 18, 2013
Oct 18, 2013
119
X11_XFree(p);
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
}
}
return SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
}
if (vinfo->class == PseudoColor || vinfo->class == StaticColor) {
switch (vinfo->depth) {
case 8:
return SDL_PIXELTYPE_INDEX8;
case 4:
if (BitmapBitOrder(display) == LSBFirst) {
return SDL_PIXELFORMAT_INDEX4LSB;
} else {
return SDL_PIXELFORMAT_INDEX4MSB;
}
break;
case 1:
if (BitmapBitOrder(display) == LSBFirst) {
return SDL_PIXELFORMAT_INDEX1LSB;
} else {
return SDL_PIXELFORMAT_INDEX1MSB;
}
break;
}
}
return SDL_PIXELFORMAT_UNKNOWN;
}
/* Global for the error handler */
int vm_event, vm_error = -1;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
static SDL_bool
CheckXinerama(Display * display, int *major, int *minor)
{
int event_base = 0;
int error_base = 0;
const char *env;
/* Default the extension not available */
*major = *minor = 0;
/* Allow environment override */
env = SDL_GetHint(SDL_HINT_VIDEO_X11_XINERAMA);
if (env && !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("Xinerama disabled due to hint\n");
#endif
return SDL_FALSE;
}
if (!SDL_X11_HAVE_XINERAMA) {
#ifdef X11MODES_DEBUG
printf("Xinerama support not available\n");
#endif
return SDL_FALSE;
}
/* Query the extension version */
Oct 18, 2013
Oct 18, 2013
181
182
183
if (!X11_XineramaQueryExtension(display, &event_base, &error_base) ||
!X11_XineramaQueryVersion(display, major, minor) ||
!X11_XineramaIsActive(display)) {
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
#ifdef X11MODES_DEBUG
printf("Xinerama not active on the display\n");
#endif
return SDL_FALSE;
}
#ifdef X11MODES_DEBUG
printf("Xinerama available at version %d.%d!\n", *major, *minor);
#endif
return SDL_TRUE;
}
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
#if SDL_VIDEO_DRIVER_X11_XRANDR
static SDL_bool
CheckXRandR(Display * display, int *major, int *minor)
{
const char *env;
/* Default the extension not available */
*major = *minor = 0;
/* Allow environment override */
env = SDL_GetHint(SDL_HINT_VIDEO_X11_XRANDR);
#ifdef XRANDR_DISABLED_BY_DEFAULT
if (!env || !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("XRandR disabled by default due to window manager issues\n");
#endif
return SDL_FALSE;
}
#else
if (env && !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("XRandR disabled due to hint\n");
#endif
return SDL_FALSE;
}
#endif /* XRANDR_ENABLED_BY_DEFAULT */
if (!SDL_X11_HAVE_XRANDR) {
#ifdef X11MODES_DEBUG
printf("XRandR support not available\n");
#endif
return SDL_FALSE;
}
/* Query the extension version */
Oct 18, 2013
Oct 18, 2013
231
if (!X11_XRRQueryVersion(display, major, minor)) {
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
#ifdef X11MODES_DEBUG
printf("XRandR not active on the display\n");
#endif
return SDL_FALSE;
}
#ifdef X11MODES_DEBUG
printf("XRandR available at version %d.%d!\n", *major, *minor);
#endif
return SDL_TRUE;
}
#define XRANDR_ROTATION_LEFT (1 << 1)
#define XRANDR_ROTATION_RIGHT (1 << 3)
static int
CalculateXRandRRefreshRate(const XRRModeInfo *info)
{
return (info->hTotal
&& info->vTotal) ? (info->dotClock / (info->hTotal * info->vTotal)) : 0;
}
static SDL_bool
SetXRandRModeInfo(Display *display, XRRScreenResources *res, XRROutputInfo *output_info,
RRMode modeID, SDL_DisplayMode *mode)
{
int i;
for (i = 0; i < res->nmode; ++i) {
if (res->modes[i].id == modeID) {
XRRCrtcInfo *crtc;
Rotation rotation = 0;
const XRRModeInfo *info = &res->modes[i];
Oct 18, 2013
Oct 18, 2013
264
crtc = X11_XRRGetCrtcInfo(display, res, output_info->crtc);
265
266
if (crtc) {
rotation = crtc->rotation;
Oct 18, 2013
Oct 18, 2013
267
X11_XRRFreeCrtcInfo(crtc);
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
}
if (rotation & (XRANDR_ROTATION_LEFT|XRANDR_ROTATION_RIGHT)) {
mode->w = info->height;
mode->h = info->width;
} else {
mode->w = info->width;
mode->h = info->height;
}
mode->refresh_rate = CalculateXRandRRefreshRate(info);
((SDL_DisplayModeData*)mode->driverdata)->xrandr_mode = modeID;
#ifdef X11MODES_DEBUG
printf("XRandR mode %d: %dx%d@%dHz\n", (int) modeID, mode->w, mode->h, mode->refresh_rate);
#endif
return SDL_TRUE;
}
}
return SDL_FALSE;
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
static SDL_bool
CheckVidMode(Display * display, int *major, int *minor)
{
const char *env;
/* Default the extension not available */
*major = *minor = 0;
/* Allow environment override */
env = SDL_GetHint(SDL_HINT_VIDEO_X11_XVIDMODE);
if (env && !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("XVidMode disabled due to hint\n");
#endif
return SDL_FALSE;
}
if (!SDL_X11_HAVE_XVIDMODE) {
#ifdef X11MODES_DEBUG
printf("XVidMode support not available\n");
#endif
return SDL_FALSE;
}
/* Query the extension version */
vm_error = -1;
Oct 18, 2013
Oct 18, 2013
316
317
if (!X11_XF86VidModeQueryExtension(display, &vm_event, &vm_error)
|| !X11_XF86VidModeQueryVersion(display, major, minor)) {
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
#ifdef X11MODES_DEBUG
printf("XVidMode not active on the display\n");
#endif
return SDL_FALSE;
}
#ifdef X11MODES_DEBUG
printf("XVidMode available at version %d.%d!\n", *major, *minor);
#endif
return SDL_TRUE;
}
static
Bool XF86VidModeGetModeInfo(Display * dpy, int scr,
XF86VidModeModeInfo* info)
{
Bool retval;
int dotclock;
XF86VidModeModeLine l;
SDL_zerop(info);
SDL_zero(l);
Oct 18, 2013
Oct 18, 2013
338
retval = X11_XF86VidModeGetModeLine(dpy, scr, &dotclock, &l);
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
info->dotclock = dotclock;
info->hdisplay = l.hdisplay;
info->hsyncstart = l.hsyncstart;
info->hsyncend = l.hsyncend;
info->htotal = l.htotal;
info->hskew = l.hskew;
info->vdisplay = l.vdisplay;
info->vsyncstart = l.vsyncstart;
info->vsyncend = l.vsyncend;
info->vtotal = l.vtotal;
info->flags = l.flags;
info->privsize = l.privsize;
info->private = l.private;
return retval;
}
static int
CalculateXVidModeRefreshRate(const XF86VidModeModeInfo * info)
{
return (info->htotal
&& info->vtotal) ? (1000 * info->dotclock / (info->htotal *
info->vtotal)) : 0;
}
SDL_bool
SetXVidModeModeInfo(const XF86VidModeModeInfo *info, SDL_DisplayMode *mode)
{
mode->w = info->hdisplay;
mode->h = info->vdisplay;
mode->refresh_rate = CalculateXVidModeRefreshRate(info);
((SDL_DisplayModeData*)mode->driverdata)->vm_mode = *info;
return SDL_TRUE;
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
int
X11_InitModes(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
int screen, screencount;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
int xinerama_major, xinerama_minor;
int use_xinerama = 0;
XineramaScreenInfo *xinerama = NULL;
#endif
#if SDL_VIDEO_DRIVER_X11_XRANDR
int xrandr_major, xrandr_minor;
int use_xrandr = 0;
XRRScreenResources *res = NULL;
#endif
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
int vm_major, vm_minor;
int use_vidmode = 0;
#endif
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* Query Xinerama extention
* NOTE: This works with Nvidia Twinview correctly, but you need version 302.17 (released on June 2012)
* or newer of the Nvidia binary drivers
*/
if (CheckXinerama(data->display, &xinerama_major, &xinerama_minor)) {
Oct 18, 2013
Oct 18, 2013
400
xinerama = X11_XineramaQueryScreens(data->display, &screencount);
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
if (xinerama) {
use_xinerama = xinerama_major * 100 + xinerama_minor;
}
}
if (!xinerama) {
screencount = ScreenCount(data->display);
}
#else
screencount = ScreenCount(data->display);
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
#if SDL_VIDEO_DRIVER_X11_XRANDR
/* require at least XRandR v1.2 */
if (CheckXRandR(data->display, &xrandr_major, &xrandr_minor) &&
(xrandr_major >= 2 || (xrandr_major == 1 && xrandr_minor >= 2))) {
use_xrandr = xrandr_major * 100 + xrandr_minor;
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (CheckVidMode(data->display, &vm_major, &vm_minor)) {
use_vidmode = vm_major * 100 + vm_minor;
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
for (screen = 0; screen < screencount; ++screen) {
XVisualInfo vinfo;
SDL_VideoDisplay display;
SDL_DisplayData *displaydata;
SDL_DisplayMode mode;
SDL_DisplayModeData *modedata;
XPixmapFormatValues *pixmapFormats;
char display_name[128];
int i, n;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (xinerama) {
if (get_visualinfo(data->display, 0, &vinfo) < 0) {
continue;
}
} else {
if (get_visualinfo(data->display, screen, &vinfo) < 0) {
continue;
}
}
#else
if (get_visualinfo(data->display, screen, &vinfo) < 0) {
continue;
}
#endif
displaydata = (SDL_DisplayData *) SDL_calloc(1, sizeof(*displaydata));
if (!displaydata) {
continue;
}
display_name[0] = '\0';
mode.format = X11_GetPixelFormatFromVisualInfo(data->display, &vinfo);
if (SDL_ISPIXELFORMAT_INDEXED(mode.format)) {
/* We don't support palettized modes now */
SDL_free(displaydata);
continue;
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (xinerama) {
mode.w = xinerama[screen].width;
mode.h = xinerama[screen].height;
} else {
mode.w = DisplayWidth(data->display, screen);
mode.h = DisplayHeight(data->display, screen);
}
#else
mode.w = DisplayWidth(data->display, screen);
mode.h = DisplayHeight(data->display, screen);
#endif
mode.refresh_rate = 0;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
SDL_free(displaydata);
continue;
}
mode.driverdata = modedata;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* Most of SDL's calls to X11 are unwaware of Xinerama, and to X11 standard calls, when Xinerama is active,
* there's only one screen available. So we force the screen number to zero and
* let Xinerama specific code handle specific functionality using displaydata->xinerama_info
*/
if (use_xinerama) {
displaydata->screen = 0;
displaydata->use_xinerama = use_xinerama;
displaydata->xinerama_info = xinerama[screen];
displaydata->xinerama_screen = screen;
}
else displaydata->screen = screen;
#else
displaydata->screen = screen;
#endif
displaydata->visual = vinfo.visual;
displaydata->depth = vinfo.depth;
displaydata->scanline_pad = SDL_BYTESPERPIXEL(mode.format) * 8;
Oct 18, 2013
Oct 18, 2013
504
pixmapFormats = X11_XListPixmapFormats(data->display, &n);
505
506
507
508
509
510
511
if (pixmapFormats) {
for (i = 0; i < n; ++i) {
if (pixmapFormats[i].depth == displaydata->depth) {
displaydata->scanline_pad = pixmapFormats[i].scanline_pad;
break;
}
}
Oct 18, 2013
Oct 18, 2013
512
X11_XFree(pixmapFormats);
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (use_xinerama) {
displaydata->x = xinerama[screen].x_org;
displaydata->y = xinerama[screen].y_org;
}
else
#endif
{
displaydata->x = 0;
displaydata->y = 0;
}
#if SDL_VIDEO_DRIVER_X11_XRANDR
if (use_xrandr) {
Oct 18, 2013
Oct 18, 2013
529
res = X11_XRRGetScreenResources(data->display, RootWindow(data->display, displaydata->screen));
530
531
532
533
534
}
if (res) {
XRROutputInfo *output_info;
XRRCrtcInfo *crtc;
int output;
Oct 18, 2013
Oct 18, 2013
535
Atom EDID = X11_XInternAtom(data->display, "EDID", False);
536
537
538
539
540
541
542
Atom *props;
int nprop;
unsigned long width_mm;
unsigned long height_mm;
int inches = 0;
for (output = 0; output < res->noutput; output++) {
Oct 18, 2013
Oct 18, 2013
543
output_info = X11_XRRGetOutputInfo(data->display, res, res->outputs[output]);
544
545
if (!output_info || !output_info->crtc ||
output_info->connection == RR_Disconnected) {
Oct 18, 2013
Oct 18, 2013
546
X11_XRRFreeOutputInfo(output_info);
547
548
549
550
551
552
553
continue;
}
/* Is this the output that corresponds to the current screen?
We're checking the crtc position, but that may not be a valid test
in all cases. Anybody want to give this some love?
*/
Oct 18, 2013
Oct 18, 2013
554
crtc = X11_XRRGetCrtcInfo(data->display, res, output_info->crtc);
555
if (!crtc || crtc->x != displaydata->x || crtc->y != displaydata->y) {
Oct 18, 2013
Oct 18, 2013
556
557
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeCrtcInfo(crtc);
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
continue;
}
displaydata->use_xrandr = use_xrandr;
displaydata->xrandr_output = res->outputs[output];
SetXRandRModeInfo(data->display, res, output_info, crtc->mode, &mode);
/* Get the name of this display */
width_mm = output_info->mm_width;
height_mm = output_info->mm_height;
inches = (int)((sqrt(width_mm * width_mm +
height_mm * height_mm) / 25.4f) + 0.5f);
SDL_strlcpy(display_name, output_info->name, sizeof(display_name));
/* See if we can get the EDID data for the real monitor name */
Oct 18, 2013
Oct 18, 2013
573
props = X11_XRRListOutputProperties(data->display, res->outputs[output], &nprop);
574
575
576
577
578
579
580
for (i = 0; i < nprop; ++i) {
unsigned char *prop;
int actual_format;
unsigned long nitems, bytes_after;
Atom actual_type;
if (props[i] == EDID) {
Oct 18, 2013
Oct 18, 2013
581
if (X11_XRRGetOutputProperty(data->display,
582
583
584
585
586
587
588
589
590
591
592
593
594
595
res->outputs[output], props[i],
0, 100, False, False,
AnyPropertyType,
&actual_type, &actual_format,
&nitems, &bytes_after, &prop) == Success ) {
MonitorInfo *info = decode_edid(prop);
if (info) {
#ifdef X11MODES_DEBUG
printf("Found EDID data for %s\n", output_info->name);
dump_monitor_info(info);
#endif
SDL_strlcpy(display_name, info->dsc_product_name, sizeof(display_name));
free(info);
}
Oct 18, 2013
Oct 18, 2013
596
X11_XFree(prop);
597
598
599
600
601
}
break;
}
}
if (props) {
Oct 18, 2013
Oct 18, 2013
602
X11_XFree(props);
603
604
605
606
607
608
609
610
611
612
}
if (*display_name && inches) {
size_t len = SDL_strlen(display_name);
SDL_snprintf(&display_name[len], sizeof(display_name)-len, " %d\"", inches);
}
#ifdef X11MODES_DEBUG
printf("Display name: %s\n", display_name);
#endif
Oct 18, 2013
Oct 18, 2013
613
614
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeCrtcInfo(crtc);
615
616
617
618
619
620
621
break;
}
#ifdef X11MODES_DEBUG
if (output == res->noutput) {
printf("Couldn't find XRandR CRTC at %d,%d\n", displaydata->x, displaydata->y);
}
#endif
Oct 18, 2013
Oct 18, 2013
622
X11_XRRFreeScreenResources(res);
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (!displaydata->use_xrandr &&
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* XVidMode only works on the screen at the origin */
(!displaydata->use_xinerama ||
(displaydata->x == 0 && displaydata->y == 0)) &&
#endif
use_vidmode) {
displaydata->use_vidmode = use_vidmode;
if (displaydata->use_xinerama) {
displaydata->vidmode_screen = 0;
} else {
displaydata->vidmode_screen = screen;
}
XF86VidModeGetModeInfo(data->display, displaydata->vidmode_screen, &modedata->vm_mode);
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
SDL_zero(display);
if (*display_name) {
display.name = display_name;
}
display.desktop_mode = mode;
display.current_mode = mode;
display.driverdata = displaydata;
SDL_AddVideoDisplay(&display);
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
Oct 18, 2013
Oct 18, 2013
655
if (xinerama) X11_XFree(xinerama);
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
#endif
if (_this->num_displays == 0) {
return SDL_SetError("No available displays");
}
return 0;
}
void
X11_GetDisplayModes(_THIS, SDL_VideoDisplay * sdl_display)
{
Display *display = ((SDL_VideoData *) _this->driverdata)->display;
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
int nmodes;
XF86VidModeModeInfo ** modes;
#endif
int screen_w;
int screen_h;
SDL_DisplayMode mode;
SDL_DisplayModeData *modedata;
/* Unfortunately X11 requires the window to be created with the correct
* visual and depth ahead of time, but the SDL API allows you to create
* a window before setting the fullscreen display mode. This means that
* we have to use the same format for all windows and all display modes.
* (or support recreating the window with a new visual behind the scenes)
*/
mode.format = sdl_display->current_mode.format;
mode.driverdata = NULL;
screen_w = DisplayWidth(display, data->screen);
screen_h = DisplayHeight(display, data->screen);
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (data->use_xinerama) {
if (data->use_vidmode && !data->xinerama_info.x_org && !data->xinerama_info.y_org &&
(screen_w > data->xinerama_info.width || screen_h > data->xinerama_info.height)) {
/* Add the full (both screens combined) xinerama mode only on the display that starts at 0,0
* if we're using vidmode.
*/
mode.w = screen_w;
mode.h = screen_h;
mode.refresh_rate = 0;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (modedata) {
*modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
}
mode.driverdata = modedata;
SDL_AddDisplayMode(sdl_display, &mode);
}
else if (!data->use_xrandr)
{
/* Add the current mode of each monitor otherwise if we can't get them from xrandr */
mode.w = data->xinerama_info.width;
mode.h = data->xinerama_info.height;
mode.refresh_rate = 0;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (modedata) {
*modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
}
mode.driverdata = modedata;
SDL_AddDisplayMode(sdl_display, &mode);
}
}
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
#if SDL_VIDEO_DRIVER_X11_XRANDR
if (data->use_xrandr) {
XRRScreenResources *res;
Oct 18, 2013
Oct 18, 2013
728
res = X11_XRRGetScreenResources (display, RootWindow(display, data->screen));
729
730
731
732
733
if (res) {
SDL_DisplayModeData *modedata;
XRROutputInfo *output_info;
int i;
Oct 18, 2013
Oct 18, 2013
734
output_info = X11_XRRGetOutputInfo(display, res, data->xrandr_output);
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
if (output_info && output_info->connection != RR_Disconnected) {
for (i = 0; i < output_info->nmode; ++i) {
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
continue;
}
mode.driverdata = modedata;
if (SetXRandRModeInfo(display, res, output_info, output_info->modes[i], &mode)) {
SDL_AddDisplayMode(sdl_display, &mode);
} else {
SDL_free(modedata);
}
}
}
Oct 18, 2013
Oct 18, 2013
750
751
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeScreenResources(res);
752
753
754
755
756
757
758
}
return;
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (data->use_vidmode &&
Oct 18, 2013
Oct 18, 2013
759
X11_XF86VidModeGetAllModeLines(display, data->vidmode_screen, &nmodes, &modes)) {
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
int i;
#ifdef X11MODES_DEBUG
printf("VidMode modes: (unsorted)\n");
for (i = 0; i < nmodes; ++i) {
printf("Mode %d: %d x %d @ %d, flags: 0x%x\n", i,
modes[i]->hdisplay, modes[i]->vdisplay,
CalculateXVidModeRefreshRate(modes[i]), modes[i]->flags);
}
#endif
for (i = 0; i < nmodes; ++i) {
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
continue;
}
mode.driverdata = modedata;
if (SetXVidModeModeInfo(modes[i], &mode)) {
SDL_AddDisplayMode(sdl_display, &mode);
} else {
SDL_free(modedata);
}
}
Oct 18, 2013
Oct 18, 2013
783
X11_XFree(modes);
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
return;
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
if (!data->use_xrandr && !data->use_vidmode) {
/* Add the desktop mode */
mode = sdl_display->desktop_mode;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (modedata) {
*modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
}
mode.driverdata = modedata;
SDL_AddDisplayMode(sdl_display, &mode);
}
}
int
X11_SetDisplayMode(_THIS, SDL_VideoDisplay * sdl_display, SDL_DisplayMode * mode)
{
Display *display = ((SDL_VideoData *) _this->driverdata)->display;
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
SDL_DisplayModeData *modedata = (SDL_DisplayModeData *)mode->driverdata;
#if SDL_VIDEO_DRIVER_X11_XRANDR
if (data->use_xrandr) {
XRRScreenResources *res;
XRROutputInfo *output_info;
XRRCrtcInfo *crtc;
Status status;
Oct 18, 2013
Oct 18, 2013
814
res = X11_XRRGetScreenResources (display, RootWindow(display, data->screen));
815
816
817
818
if (!res) {
return SDL_SetError("Couldn't get XRandR screen resources");
}
Oct 18, 2013
Oct 18, 2013
819
output_info = X11_XRRGetOutputInfo(display, res, data->xrandr_output);
820
if (!output_info || output_info->connection == RR_Disconnected) {
Oct 18, 2013
Oct 18, 2013
821
X11_XRRFreeScreenResources(res);
822
823
824
return SDL_SetError("Couldn't get XRandR output info");
}
Oct 18, 2013
Oct 18, 2013
825
crtc = X11_XRRGetCrtcInfo(display, res, output_info->crtc);
826
if (!crtc) {
Oct 18, 2013
Oct 18, 2013
827
828
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeScreenResources(res);
829
830
831
return SDL_SetError("Couldn't get XRandR crtc info");
}
Oct 18, 2013
Oct 18, 2013
832
status = X11_XRRSetCrtcConfig (display, res, output_info->crtc, CurrentTime,
833
834
835
crtc->x, crtc->y, modedata->xrandr_mode, crtc->rotation,
&data->xrandr_output, 1);
Oct 18, 2013
Oct 18, 2013
836
837
838
X11_XRRFreeCrtcInfo(crtc);
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeScreenResources(res);
839
840
if (status != Success) {
Oct 18, 2013
Oct 18, 2013
841
return SDL_SetError("X11_XRRSetCrtcConfig failed");
842
843
844
845
846
847
}
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (data->use_vidmode) {
Oct 18, 2013
Oct 18, 2013
848
X11_XF86VidModeSwitchToMode(display, data->vidmode_screen, &modedata->vm_mode);
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
return 0;
}
void
X11_QuitModes(_THIS)
{
}
int
X11_GetDisplayBounds(_THIS, SDL_VideoDisplay * sdl_display, SDL_Rect * rect)
{
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
rect->x = data->x;
rect->y = data->y;
rect->w = sdl_display->current_mode.w;
rect->h = sdl_display->current_mode.h;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* Get the real current bounds of the display */
if (data->use_xinerama) {
Display *display = ((SDL_VideoData *) _this->driverdata)->display;
int screencount;
Oct 18, 2013
Oct 18, 2013
875
XineramaScreenInfo *xinerama = X11_XineramaQueryScreens(display, &screencount);
876
877
878
if (xinerama) {
rect->x = xinerama[data->xinerama_screen].x_org;
rect->y = xinerama[data->xinerama_screen].y_org;
Oct 18, 2013
Oct 18, 2013
879
X11_XFree(xinerama);
880
881
882
883
884
885
886
887
888
}
}
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
return 0;
}
#endif /* SDL_VIDEO_DRIVER_X11 */
/* vi: set ts=4 sw=4 expandtab: */