/
SDL_x11window.c
2066 lines (1755 loc) · 73 KB
/
SDL_x11window.c
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
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
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
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
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
400
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
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
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
655
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
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
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
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
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
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
Simple DirectMedia Layer
Copyright (C) 1997-2024 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"
#ifdef SDL_VIDEO_DRIVER_X11
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_keyboard_c.h"
#include "../../events/SDL_mouse_c.h"
#include "../../events/SDL_events_c.h"
#include "../../core/unix/SDL_appid.h"
#include "SDL_x11video.h"
#include "SDL_x11mouse.h"
#include "SDL_x11xinput2.h"
#include "SDL_x11xfixes.h"
#ifdef SDL_VIDEO_OPENGL_EGL
#include "SDL_x11opengles.h"
#endif
#define _NET_WM_STATE_REMOVE 0l
#define _NET_WM_STATE_ADD 1l
#define CHECK_WINDOW_DATA(window) \
if (!window) { \
return SDL_SetError("Invalid window"); \
} \
if (!window->driverdata) { \
return SDL_SetError("Invalid window driver data"); \
}
#define CHECK_DISPLAY_DATA(display) \
if (!_display) { \
return SDL_SetError("Invalid display"); \
} \
if (!_display->driverdata) { \
return SDL_SetError("Invalid display driver data"); \
}
static Bool isMapNotify(Display *dpy, XEvent *ev, XPointer win) /* NOLINT(readability-non-const-parameter): cannot make XPointer a const pointer due to typedef */
{
return ev->type == MapNotify && ev->xmap.window == *((Window *)win);
}
static Bool isUnmapNotify(Display *dpy, XEvent *ev, XPointer win) /* NOLINT(readability-non-const-parameter): cannot make XPointer a const pointer due to typedef */
{
return ev->type == UnmapNotify && ev->xunmap.window == *((Window *)win);
}
/*
static Bool isConfigureNotify(Display *dpy, XEvent *ev, XPointer win)
{
return ev->type == ConfigureNotify && ev->xconfigure.window == *((Window*)win);
}
static Bool X11_XIfEventTimeout(Display *display, XEvent *event_return, Bool (*predicate)(), XPointer arg, int timeoutMS)
{
Uint64 start = SDL_GetTicks();
while (!X11_XCheckIfEvent(display, event_return, predicate, arg)) {
if (SDL_GetTicks() >= (start + timeoutMS)) {
return False;
}
}
return True;
}
*/
static SDL_bool X11_IsWindowMapped(SDL_VideoDevice *_this, SDL_Window *window)
{
SDL_WindowData *data = window->driverdata;
SDL_VideoData *videodata = _this->driverdata;
XWindowAttributes attr;
X11_XGetWindowAttributes(videodata->display, data->xwindow, &attr);
if (attr.map_state != IsUnmapped) {
return SDL_TRUE;
} else {
return SDL_FALSE;
}
}
#if 0
static SDL_bool X11_IsActionAllowed(SDL_Window *window, Atom action)
{
SDL_WindowData *data = window->driverdata;
Atom _NET_WM_ALLOWED_ACTIONS = data->videodata->_NET_WM_ALLOWED_ACTIONS;
Atom type;
Display *display = data->videodata->display;
int form;
unsigned long remain;
unsigned long len, i;
Atom *list;
SDL_bool ret = SDL_FALSE;
if (X11_XGetWindowProperty(display, data->xwindow, _NET_WM_ALLOWED_ACTIONS, 0, 1024, False, XA_ATOM, &type, &form, &len, &remain, (unsigned char **)&list) == Success) {
for (i=0; i<len; ++i) {
if (list[i] == action) {
ret = SDL_TRUE;
break;
}
}
X11_XFree(list);
}
return ret;
}
#endif /* 0 */
void X11_SetNetWMState(SDL_VideoDevice *_this, Window xwindow, SDL_WindowFlags flags)
{
SDL_VideoData *videodata = _this->driverdata;
Display *display = videodata->display;
/* !!! FIXME: just dereference videodata below instead of copying to locals. */
Atom _NET_WM_STATE = videodata->_NET_WM_STATE;
/* Atom _NET_WM_STATE_HIDDEN = videodata->_NET_WM_STATE_HIDDEN; */
Atom _NET_WM_STATE_FOCUSED = videodata->_NET_WM_STATE_FOCUSED;
Atom _NET_WM_STATE_MAXIMIZED_VERT = videodata->_NET_WM_STATE_MAXIMIZED_VERT;
Atom _NET_WM_STATE_MAXIMIZED_HORZ = videodata->_NET_WM_STATE_MAXIMIZED_HORZ;
Atom _NET_WM_STATE_FULLSCREEN = videodata->_NET_WM_STATE_FULLSCREEN;
Atom _NET_WM_STATE_ABOVE = videodata->_NET_WM_STATE_ABOVE;
Atom _NET_WM_STATE_SKIP_TASKBAR = videodata->_NET_WM_STATE_SKIP_TASKBAR;
Atom _NET_WM_STATE_SKIP_PAGER = videodata->_NET_WM_STATE_SKIP_PAGER;
Atom atoms[16];
int count = 0;
/* The window manager sets this property, we shouldn't set it.
If we did, this would indicate to the window manager that we don't
actually want to be mapped during X11_XMapRaised(), which would be bad.
*
if ((flags & SDL_WINDOW_HIDDEN) != 0) {
atoms[count++] = _NET_WM_STATE_HIDDEN;
}
*/
if (flags & SDL_WINDOW_ALWAYS_ON_TOP) {
atoms[count++] = _NET_WM_STATE_ABOVE;
}
if (flags & SDL_WINDOW_UTILITY) {
atoms[count++] = _NET_WM_STATE_SKIP_TASKBAR;
atoms[count++] = _NET_WM_STATE_SKIP_PAGER;
}
if (flags & SDL_WINDOW_INPUT_FOCUS) {
atoms[count++] = _NET_WM_STATE_FOCUSED;
}
if (flags & SDL_WINDOW_MAXIMIZED) {
atoms[count++] = _NET_WM_STATE_MAXIMIZED_VERT;
atoms[count++] = _NET_WM_STATE_MAXIMIZED_HORZ;
}
if (flags & SDL_WINDOW_FULLSCREEN) {
atoms[count++] = _NET_WM_STATE_FULLSCREEN;
}
SDL_assert(count <= SDL_arraysize(atoms));
if (count > 0) {
X11_XChangeProperty(display, xwindow, _NET_WM_STATE, XA_ATOM, 32,
PropModeReplace, (unsigned char *)atoms, count);
} else {
X11_XDeleteProperty(display, xwindow, _NET_WM_STATE);
}
}
static void X11_ConstrainPopup(SDL_Window *window)
{
/* Clamp popup windows to the output borders */
if (SDL_WINDOW_IS_POPUP(window)) {
SDL_Window *w;
SDL_DisplayID displayID;
SDL_Rect rect;
int abs_x = window->floating.x;
int abs_y = window->floating.y;
int offset_x = 0, offset_y = 0;
/* Calculate the total offset from the parents */
for (w = window->parent; w->parent; w = w->parent) {
offset_x += w->x;
offset_y += w->y;
}
offset_x += w->x;
offset_y += w->y;
abs_x += offset_x;
abs_y += offset_y;
displayID = SDL_GetDisplayForWindow(w);
SDL_GetDisplayBounds(displayID, &rect);
if (abs_x + window->w > rect.x + rect.w) {
abs_x -= (abs_x + window->w) - (rect.x + rect.w);
}
if (abs_y + window->h > rect.y + rect.h) {
abs_y -= (abs_y + window->h) - (rect.y + rect.h);
}
abs_x = SDL_max(abs_x, rect.x);
abs_y = SDL_max(abs_y, rect.y);
window->floating.x = window->windowed.x = abs_x - offset_x;
window->floating.y = window->windowed.y = abs_y - offset_y;
}
}
static void X11_SetKeyboardFocus(SDL_Window *window)
{
SDL_Window *topmost = window;
/* Find the topmost parent */
while (topmost->parent) {
topmost = topmost->parent;
}
topmost->driverdata->keyboard_focus = window;
SDL_SetKeyboardFocus(window);
}
Uint32 X11_GetNetWMState(SDL_VideoDevice *_this, SDL_Window *window, Window xwindow)
{
SDL_VideoData *videodata = _this->driverdata;
Display *display = videodata->display;
Atom _NET_WM_STATE = videodata->_NET_WM_STATE;
Atom _NET_WM_STATE_HIDDEN = videodata->_NET_WM_STATE_HIDDEN;
Atom _NET_WM_STATE_FOCUSED = videodata->_NET_WM_STATE_FOCUSED;
Atom _NET_WM_STATE_MAXIMIZED_VERT = videodata->_NET_WM_STATE_MAXIMIZED_VERT;
Atom _NET_WM_STATE_MAXIMIZED_HORZ = videodata->_NET_WM_STATE_MAXIMIZED_HORZ;
Atom _NET_WM_STATE_FULLSCREEN = videodata->_NET_WM_STATE_FULLSCREEN;
Atom actualType;
int actualFormat;
unsigned long i, numItems, bytesAfter;
unsigned char *propertyValue = NULL;
long maxLength = 1024;
SDL_WindowFlags flags = 0;
if (X11_XGetWindowProperty(display, xwindow, _NET_WM_STATE,
0l, maxLength, False, XA_ATOM, &actualType,
&actualFormat, &numItems, &bytesAfter,
&propertyValue) == Success) {
Atom *atoms = (Atom *)propertyValue;
int maximized = 0;
int fullscreen = 0;
for (i = 0; i < numItems; ++i) {
if (atoms[i] == _NET_WM_STATE_HIDDEN) {
flags |= SDL_WINDOW_MINIMIZED | SDL_WINDOW_OCCLUDED;
} else if (atoms[i] == _NET_WM_STATE_FOCUSED) {
flags |= SDL_WINDOW_INPUT_FOCUS;
} else if (atoms[i] == _NET_WM_STATE_MAXIMIZED_VERT) {
maximized |= 1;
} else if (atoms[i] == _NET_WM_STATE_MAXIMIZED_HORZ) {
maximized |= 2;
} else if (atoms[i] == _NET_WM_STATE_FULLSCREEN) {
fullscreen = 1;
}
}
if (fullscreen == 1) {
if (window->flags & SDL_WINDOW_FULLSCREEN) {
/* Pick whatever state the window expects */
flags |= (window->flags & SDL_WINDOW_FULLSCREEN);
} else {
/* Assume we're fullscreen desktop */
flags |= SDL_WINDOW_FULLSCREEN;
}
}
if (maximized == 3) {
/* Fullscreen windows are maximized on some window managers,
and this is functional behavior - if maximized is removed,
the windows remain floating centered and not covering the
rest of the desktop. So we just won't change the maximize
state for fullscreen windows here, otherwise SDL would think
we're always maximized when fullscreen and not restore the
correct state when leaving fullscreen.
*/
if (fullscreen) {
flags |= (window->flags & SDL_WINDOW_MAXIMIZED);
} else {
flags |= SDL_WINDOW_MAXIMIZED;
}
}
/* If the window is unmapped, numItems will be zero and _NET_WM_STATE_HIDDEN
* will not be set. Do an additional check to see if the window is unmapped
* and mark it as SDL_WINDOW_HIDDEN if it is.
*/
{
XWindowAttributes attr;
SDL_memset(&attr, 0, sizeof(attr));
X11_XGetWindowAttributes(videodata->display, xwindow, &attr);
if (attr.map_state == IsUnmapped) {
flags |= SDL_WINDOW_HIDDEN;
}
}
X11_XFree(propertyValue);
}
/* FIXME, check the size hints for resizable */
/* flags |= SDL_WINDOW_RESIZABLE; */
return flags;
}
static int SetupWindowData(SDL_VideoDevice *_this, SDL_Window *window, Window w)
{
SDL_VideoData *videodata = _this->driverdata;
SDL_DisplayData *displaydata = SDL_GetDisplayDriverDataForWindow(window);
SDL_WindowData *data;
int numwindows = videodata->numwindows;
int windowlistlength = videodata->windowlistlength;
SDL_WindowData **windowlist = videodata->windowlist;
/* Allocate the window data */
data = (SDL_WindowData *)SDL_calloc(1, sizeof(*data));
if (!data) {
return -1;
}
data->window = window;
data->xwindow = w;
data->hit_test_result = SDL_HITTEST_NORMAL;
#ifdef X_HAVE_UTF8_STRING
if (SDL_X11_HAVE_UTF8 && videodata->im) {
data->ic =
X11_XCreateIC(videodata->im, XNClientWindow, w, XNFocusWindow, w,
XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
NULL);
}
#endif
data->videodata = videodata;
/* Associate the data with the window */
if (numwindows < windowlistlength) {
windowlist[numwindows] = data;
videodata->numwindows++;
} else {
SDL_WindowData ** new_windowlist = (SDL_WindowData **)SDL_realloc(windowlist, (numwindows + 1) * sizeof(*windowlist));
if (!new_windowlist) {
SDL_free(data);
return -1;
}
windowlist = new_windowlist;
windowlist[numwindows] = data;
videodata->numwindows++;
videodata->windowlistlength++;
videodata->windowlist = windowlist;
}
/* Fill in the SDL window with the window data */
{
XWindowAttributes attrib;
X11_XGetWindowAttributes(data->videodata->display, w, &attrib);
if (!SDL_WINDOW_IS_POPUP(window)) {
window->x = data->expected.x = attrib.x;
window->y = data->expected.y = attrib.y - data->border_top;
}
window->w = data->expected.w = attrib.width;
window->h = data->expected.h = attrib.height;
if (attrib.map_state != IsUnmapped) {
window->flags &= ~SDL_WINDOW_HIDDEN;
} else {
window->flags |= SDL_WINDOW_HIDDEN;
}
data->visual = attrib.visual;
data->colormap = attrib.colormap;
}
window->flags |= X11_GetNetWMState(_this, window, w);
{
Window FocalWindow;
int RevertTo = 0;
X11_XGetInputFocus(data->videodata->display, &FocalWindow, &RevertTo);
if (FocalWindow == w) {
window->flags |= SDL_WINDOW_INPUT_FOCUS;
}
if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
SDL_SetKeyboardFocus(data->window);
}
if (window->flags & SDL_WINDOW_MOUSE_GRABBED) {
/* Tell x11 to clip mouse */
}
}
if (window->flags & SDL_WINDOW_EXTERNAL) {
/* Query the title from the existing window */
window->title = X11_GetWindowTitle(_this, w);
}
SDL_PropertiesID props = SDL_GetWindowProperties(window);
int screen = (displaydata ? displaydata->screen : 0);
SDL_SetProperty(props, SDL_PROP_WINDOW_X11_DISPLAY_POINTER, data->videodata->display);
SDL_SetNumberProperty(props, SDL_PROP_WINDOW_X11_SCREEN_NUMBER, screen);
SDL_SetNumberProperty(props, SDL_PROP_WINDOW_X11_WINDOW_NUMBER, data->xwindow);
/* All done! */
window->driverdata = data;
return 0;
}
static void SetWindowBordered(Display *display, int screen, Window window, SDL_bool border)
{
/*
* this code used to check for KWM_WIN_DECORATION, but KDE hasn't
* supported it for years and years. It now respects _MOTIF_WM_HINTS.
* Gnome is similar: just use the Motif atom.
*/
Atom WM_HINTS = X11_XInternAtom(display, "_MOTIF_WM_HINTS", True);
if (WM_HINTS != None) {
/* Hints used by Motif compliant window managers */
struct
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} MWMHints = {
(1L << 1), 0, border ? 1 : 0, 0, 0
};
X11_XChangeProperty(display, window, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&MWMHints,
sizeof(MWMHints) / sizeof(long));
} else { /* set the transient hints instead, if necessary */
X11_XSetTransientForHint(display, window, RootWindow(display, screen));
}
}
int X11_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_PropertiesID create_props)
{
Window w = (Window)SDL_GetNumberProperty(create_props, SDL_PROP_WINDOW_CREATE_X11_WINDOW_NUMBER,
(Window)SDL_GetProperty(create_props, "sdl2-compat.external_window", NULL));
if (w) {
window->flags |= SDL_WINDOW_EXTERNAL;
if (SetupWindowData(_this, window, w) < 0) {
return -1;
}
return 0;
}
SDL_VideoData *data = _this->driverdata;
SDL_DisplayData *displaydata = SDL_GetDisplayDriverDataForWindow(window);
if (!displaydata) {
return SDL_SetError("Could not find display info");
}
const SDL_bool force_override_redirect = SDL_GetHintBoolean(SDL_HINT_X11_FORCE_OVERRIDE_REDIRECT, SDL_FALSE);
SDL_WindowData *windowdata;
Display *display = data->display;
int screen = displaydata->screen;
Visual *visual;
int depth;
XSetWindowAttributes xattr;
XSizeHints *sizehints;
XWMHints *wmhints;
XClassHint *classhints;
Atom _NET_WM_BYPASS_COMPOSITOR;
Atom _NET_WM_WINDOW_TYPE;
Atom wintype;
const char *wintype_name = NULL;
long compositor = 1;
Atom _NET_WM_PID;
long fevent = 0;
const char *hint = NULL;
int win_x, win_y;
SDL_bool undefined_position = SDL_FALSE;
#if defined(SDL_VIDEO_OPENGL_GLX) || defined(SDL_VIDEO_OPENGL_EGL)
const int transparent = (window->flags & SDL_WINDOW_TRANSPARENT) ? SDL_TRUE : SDL_FALSE;
const char *forced_visual_id = SDL_GetHint(SDL_HINT_VIDEO_X11_WINDOW_VISUALID);
if (forced_visual_id && forced_visual_id[0] != '\0') {
XVisualInfo *vi, template;
int nvis;
SDL_zero(template);
template.visualid = SDL_strtol(forced_visual_id, NULL, 0);
vi = X11_XGetVisualInfo(display, VisualIDMask, &template, &nvis);
if (vi) {
visual = vi->visual;
depth = vi->depth;
X11_XFree(vi);
} else {
return -1;
}
} else if ((window->flags & SDL_WINDOW_OPENGL) &&
!SDL_getenv("SDL_VIDEO_X11_VISUALID")) {
XVisualInfo *vinfo = NULL;
#ifdef SDL_VIDEO_OPENGL_EGL
if (((_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) ||
SDL_GetHintBoolean(SDL_HINT_VIDEO_FORCE_EGL, SDL_FALSE))
#ifdef SDL_VIDEO_OPENGL_GLX
&& (!_this->gl_data || X11_GL_UseEGL(_this))
#endif
) {
vinfo = X11_GLES_GetVisual(_this, display, screen, transparent);
} else
#endif
{
#ifdef SDL_VIDEO_OPENGL_GLX
vinfo = X11_GL_GetVisual(_this, display, screen, transparent);
#endif
}
if (!vinfo) {
return -1;
}
visual = vinfo->visual;
depth = vinfo->depth;
X11_XFree(vinfo);
} else
#endif
{
visual = displaydata->visual;
depth = displaydata->depth;
}
xattr.override_redirect = ((window->flags & SDL_WINDOW_TOOLTIP) || (window->flags & SDL_WINDOW_POPUP_MENU) || force_override_redirect) ? True : False;
xattr.backing_store = NotUseful;
xattr.background_pixmap = None;
xattr.border_pixel = 0;
if (visual->class == DirectColor) {
XColor *colorcells;
int i;
int ncolors;
int rmax, gmax, bmax;
int rmask, gmask, bmask;
int rshift, gshift, bshift;
xattr.colormap =
X11_XCreateColormap(display, RootWindow(display, screen),
visual, AllocAll);
/* If we can't create a colormap, then we must die */
if (!xattr.colormap) {
return SDL_SetError("Could not create writable colormap");
}
/* OK, we got a colormap, now fill it in as best as we can */
colorcells = SDL_malloc(visual->map_entries * sizeof(XColor));
if (!colorcells) {
return -1;
}
ncolors = visual->map_entries;
rmax = 0xffff;
gmax = 0xffff;
bmax = 0xffff;
rshift = 0;
rmask = visual->red_mask;
while (0 == (rmask & 1)) {
rshift++;
rmask >>= 1;
}
gshift = 0;
gmask = visual->green_mask;
while (0 == (gmask & 1)) {
gshift++;
gmask >>= 1;
}
bshift = 0;
bmask = visual->blue_mask;
while (0 == (bmask & 1)) {
bshift++;
bmask >>= 1;
}
/* build the color table pixel values */
for (i = 0; i < ncolors; i++) {
Uint32 red = (rmax * i) / (ncolors - 1);
Uint32 green = (gmax * i) / (ncolors - 1);
Uint32 blue = (bmax * i) / (ncolors - 1);
Uint32 rbits = (rmask * i) / (ncolors - 1);
Uint32 gbits = (gmask * i) / (ncolors - 1);
Uint32 bbits = (bmask * i) / (ncolors - 1);
Uint32 pix =
(rbits << rshift) | (gbits << gshift) | (bbits << bshift);
colorcells[i].pixel = pix;
colorcells[i].red = red;
colorcells[i].green = green;
colorcells[i].blue = blue;
colorcells[i].flags = DoRed | DoGreen | DoBlue;
}
X11_XStoreColors(display, xattr.colormap, colorcells, ncolors);
SDL_free(colorcells);
} else {
xattr.colormap =
X11_XCreateColormap(display, RootWindow(display, screen),
visual, AllocNone);
}
if (window->undefined_x && window->undefined_y &&
window->last_displayID == SDL_GetPrimaryDisplay()) {
undefined_position = SDL_TRUE;
}
if (SDL_WINDOW_IS_POPUP(window)) {
X11_ConstrainPopup(window);
}
SDL_RelativeToGlobalForWindow(window,
window->floating.x, window->floating.y,
&win_x, &win_y);
/* Always create this with the window->floating.* fields; if we're creating a windowed mode window,
* that's fine. If we're creating a maximized or fullscreen window, the window manager will want to
* know these values so it can use them if we go _back_ to the base floating windowed mode. SDL manages
* migration to fullscreen after CreateSDLWindow returns, which will put all the SDL_Window fields and
* system state as expected.
*/
w = X11_XCreateWindow(display, RootWindow(display, screen),
win_x, win_y, window->floating.w, window->floating.h,
0, depth, InputOutput, visual,
(CWOverrideRedirect | CWBackPixmap | CWBorderPixel |
CWBackingStore | CWColormap),
&xattr);
if (!w) {
return SDL_SetError("Couldn't create window");
}
/* Do not set borderless window if in desktop fullscreen, this causes
flickering in multi-monitor setups */
if (!((window->pending_flags & SDL_WINDOW_FULLSCREEN) &&
(window->flags & SDL_WINDOW_BORDERLESS) &&
!window->fullscreen_exclusive)) {
SetWindowBordered(display, screen, w,
!(window->flags & SDL_WINDOW_BORDERLESS));
}
sizehints = X11_XAllocSizeHints();
/* Setup the normal size hints */
sizehints->flags = 0;
if (!(window->flags & SDL_WINDOW_RESIZABLE)) {
sizehints->min_width = sizehints->max_width = window->w;
sizehints->min_height = sizehints->max_height = window->h;
sizehints->flags |= (PMaxSize | PMinSize);
}
if (!undefined_position) {
sizehints->x = win_x;
sizehints->y = win_y;
sizehints->flags |= USPosition;
}
/* Setup the input hints so we get keyboard input */
wmhints = X11_XAllocWMHints();
wmhints->input = !(window->flags & SDL_WINDOW_NOT_FOCUSABLE) ? True : False;
wmhints->window_group = data->window_group;
wmhints->flags = InputHint | WindowGroupHint;
/* Setup the class hints so we can get an icon (AfterStep) */
classhints = X11_XAllocClassHint();
classhints->res_name = (char *)SDL_GetExeName();
classhints->res_class = (char *)SDL_GetAppID();
/* Set the size, input and class hints, and define WM_CLIENT_MACHINE and WM_LOCALE_NAME */
X11_XSetWMProperties(display, w, NULL, NULL, NULL, 0, sizehints, wmhints, classhints);
X11_XFree(sizehints);
X11_XFree(wmhints);
X11_XFree(classhints);
/* Set the PID related to the window for the given hostname, if possible */
if (data->pid > 0) {
long pid = (long)data->pid;
_NET_WM_PID = X11_XInternAtom(display, "_NET_WM_PID", False);
X11_XChangeProperty(display, w, _NET_WM_PID, XA_CARDINAL, 32, PropModeReplace,
(unsigned char *)&pid, 1);
}
/* Set the window manager state */
X11_SetNetWMState(_this, w, window->flags);
compositor = 2; /* don't disable compositing except for "normal" windows */
hint = SDL_GetHint(SDL_HINT_X11_WINDOW_TYPE);
if (window->flags & SDL_WINDOW_UTILITY) {
wintype_name = "_NET_WM_WINDOW_TYPE_UTILITY";
} else if (window->flags & SDL_WINDOW_TOOLTIP) {
wintype_name = "_NET_WM_WINDOW_TYPE_TOOLTIP";
} else if (window->flags & SDL_WINDOW_POPUP_MENU) {
wintype_name = "_NET_WM_WINDOW_TYPE_POPUP_MENU";
} else if (hint && *hint) {
wintype_name = hint;
} else {
wintype_name = "_NET_WM_WINDOW_TYPE_NORMAL";
compositor = 1; /* disable compositing for "normal" windows */
}
/* Let the window manager know what type of window we are. */
_NET_WM_WINDOW_TYPE = X11_XInternAtom(display, "_NET_WM_WINDOW_TYPE", False);
wintype = X11_XInternAtom(display, wintype_name, False);
X11_XChangeProperty(display, w, _NET_WM_WINDOW_TYPE, XA_ATOM, 32,
PropModeReplace, (unsigned char *)&wintype, 1);
if (SDL_GetHintBoolean(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, SDL_TRUE)) {
_NET_WM_BYPASS_COMPOSITOR = X11_XInternAtom(display, "_NET_WM_BYPASS_COMPOSITOR", False);
X11_XChangeProperty(display, w, _NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32,
PropModeReplace,
(unsigned char *)&compositor, 1);
}
{
Atom protocols[3];
int proto_count = 0;
protocols[proto_count++] = data->WM_DELETE_WINDOW; /* Allow window to be deleted by the WM */
protocols[proto_count++] = data->WM_TAKE_FOCUS; /* Since we will want to set input focus explicitly */
/* Default to using ping if there is no hint */
if (SDL_GetHintBoolean(SDL_HINT_VIDEO_X11_NET_WM_PING, SDL_TRUE)) {
protocols[proto_count++] = data->_NET_WM_PING; /* Respond so WM knows we're alive */
}
SDL_assert(proto_count <= sizeof(protocols) / sizeof(protocols[0]));
X11_XSetWMProtocols(display, w, protocols, proto_count);
}
if (SetupWindowData(_this, window, w) < 0) {
X11_XDestroyWindow(display, w);
return -1;
}
windowdata = window->driverdata;
#if defined(SDL_VIDEO_OPENGL_ES) || defined(SDL_VIDEO_OPENGL_ES2) || defined(SDL_VIDEO_OPENGL_EGL)
if ((window->flags & SDL_WINDOW_OPENGL) &&
((_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) ||
SDL_GetHintBoolean(SDL_HINT_VIDEO_FORCE_EGL, SDL_FALSE))
#ifdef SDL_VIDEO_OPENGL_GLX
&& (!_this->gl_data || X11_GL_UseEGL(_this))
#endif
) {
#ifdef SDL_VIDEO_OPENGL_EGL
if (!_this->egl_data) {
return -1;
}
/* Create the GLES window surface */
windowdata->egl_surface = SDL_EGL_CreateSurface(_this, window, (NativeWindowType)w);
if (windowdata->egl_surface == EGL_NO_SURFACE) {
return SDL_SetError("Could not create GLES window surface");
}
#else
return SDL_SetError("Could not create GLES window surface (EGL support not configured)");
#endif /* SDL_VIDEO_OPENGL_EGL */
}
#endif
#ifdef X_HAVE_UTF8_STRING
if (SDL_X11_HAVE_UTF8 && windowdata->ic) {
X11_XGetICValues(windowdata->ic, XNFilterEvents, &fevent, NULL);
}
#endif
#ifdef SDL_VIDEO_DRIVER_X11_XSHAPE
/* Tooltips do not receive input */
if (window->flags & SDL_WINDOW_TOOLTIP) {
Region region = X11_XCreateRegion();
X11_XShapeCombineRegion(display, w, ShapeInput, 0, 0, region, ShapeSet);
X11_XDestroyRegion(region);
}
#endif
X11_Xinput2SelectTouch(_this, window);
{
unsigned int x11_keyboard_events = KeyPressMask | KeyReleaseMask;
unsigned int x11_pointer_events = ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
X11_Xinput2SelectMouseAndKeyboard(_this, window);
/* If XInput2 can handle pointer and keyboard events, we don't track them here */
if (windowdata->xinput2_keyboard_enabled) {
x11_keyboard_events = 0;
}
if (windowdata->xinput2_mouse_enabled) {
x11_pointer_events = 0;
}
X11_XSelectInput(display, w,
(FocusChangeMask | EnterWindowMask | LeaveWindowMask | ExposureMask |
x11_keyboard_events | x11_pointer_events |
PropertyChangeMask | StructureNotifyMask |
KeymapStateMask | fevent));
}
/* For _ICC_PROFILE. */
X11_XSelectInput(display, RootWindow(display, screen), PropertyChangeMask);
X11_XFlush(display);
return 0;
}
char *X11_GetWindowTitle(SDL_VideoDevice *_this, Window xwindow)
{
SDL_VideoData *data = _this->driverdata;
Display *display = data->display;
int status, real_format;
Atom real_type;
unsigned long items_read, items_left;
unsigned char *propdata;
char *title = NULL;
status = X11_XGetWindowProperty(display, xwindow, data->_NET_WM_NAME,
0L, 8192L, False, data->UTF8_STRING, &real_type, &real_format,
&items_read, &items_left, &propdata);
if (status == Success && propdata) {
title = SDL_strdup(SDL_static_cast(char *, propdata));
X11_XFree(propdata);
} else {
status = X11_XGetWindowProperty(display, xwindow, XA_WM_NAME,
0L, 8192L, False, XA_STRING, &real_type, &real_format,
&items_read, &items_left, &propdata);
if (status == Success && propdata) {
title = SDL_iconv_string("UTF-8", "", SDL_static_cast(char *, propdata), items_read + 1);
SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Failed to convert WM_NAME title expecting UTF8! Title: %s", title);
X11_XFree(propdata);
} else {
SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Could not get any window title response from Xorg, returning empty string!");
title = SDL_strdup("");
}
}
return title;
}
void X11_SetWindowTitle(SDL_VideoDevice *_this, SDL_Window *window)
{
SDL_WindowData *data = window->driverdata;
Window xwindow = data->xwindow;
Display *display = data->videodata->display;
char *title = window->title ? window->title : "";
SDL_X11_SetWindowTitle(display, xwindow, title);
}
static SDL_bool caught_x11_error = SDL_FALSE;
static int X11_CatchAnyError(Display *d, XErrorEvent *e)
{
/* this may happen during tumultuous times when we are polling anyhow,
so just note we had an error and return control. */
caught_x11_error = SDL_TRUE;
return 0;
}
/* Wait a brief time, or not, to see if the window manager decided to move/resize the window.
* Send MOVED and RESIZED window events */
static int X11_SyncWindowTimeout(SDL_VideoDevice *_this, SDL_Window *window, Uint64 param_timeout)
{
SDL_WindowData *data = window->driverdata;
Display *display = data->videodata->display;
int (*prev_handler)(Display *, XErrorEvent *);
Uint64 timeout = 0;
int ret = 0;
SDL_bool force_exit = SDL_FALSE;
X11_XSync(display, False);
prev_handler = X11_XSetErrorHandler(X11_CatchAnyError);
if (param_timeout) {
timeout = SDL_GetTicksNS() + param_timeout;
}
while (SDL_TRUE) {
X11_XSync(display, False);
X11_PumpEvents(_this);
if ((data->pending_operation & X11_PENDING_OP_MOVE) && (window->x == data->expected.x + data->border_left && window->y == data->expected.y + data->border_top)) {
data->pending_operation &= ~X11_PENDING_OP_MOVE;
}
if ((data->pending_operation & X11_PENDING_OP_RESIZE) && (window->w == data->expected.w && window->h == data->expected.h)) {
data->pending_operation &= ~X11_PENDING_OP_RESIZE;
}
if (data->pending_operation == X11_PENDING_OP_NONE) {
if (force_exit ||
(window->x == data->expected.x + data->border_left && window->y == data->expected.y + data->border_top &&
window->w == data->expected.w && window->h == data->expected.h)) {
/* The window is in the expected state and nothing is pending. Done. */
break;
}
/* No operations are pending, but the window still isn't in the expected state.
* Try one more time before exiting.
*/
force_exit = SDL_TRUE;
}
if (SDL_GetTicksNS() >= timeout) {
/* Timed out without the expected values. Update the requested data so future sync calls won't block. */
data->expected.x = window->x;
data->expected.y = window->y;
data->expected.w = window->w;
data->expected.h = window->h;
ret = 1;
break;
}
SDL_Delay(10);
}
data->pending_operation = X11_PENDING_OP_NONE;
if (!caught_x11_error) {
X11_PumpEvents(_this);
} else {
ret = -1;
}
X11_XSetErrorHandler(prev_handler);
caught_x11_error = SDL_FALSE;
return ret;
}
int X11_SetWindowIcon(SDL_VideoDevice *_this, SDL_Window *window, SDL_Surface *icon)
{
SDL_WindowData *data = window->driverdata;
Display *display = data->videodata->display;
Atom _NET_WM_ICON = data->videodata->_NET_WM_ICON;
int rc = 0;
int (*prevHandler)(Display *, XErrorEvent *) = NULL;
if (icon) {
int x, y;
int propsize;
long *propdata;
Uint32 *src;
long *dst;
/* Set the _NET_WM_ICON property */
SDL_assert(icon->format->format == SDL_PIXELFORMAT_ARGB8888);
propsize = 2 + (icon->w * icon->h);
propdata = SDL_malloc(propsize * sizeof(long));
if (!propdata) {
return -1;
}
X11_XSync(display, False);
prevHandler = X11_XSetErrorHandler(X11_CatchAnyError);
propdata[0] = icon->w;
propdata[1] = icon->h;
dst = &propdata[2];
for (y = 0; y < icon->h; ++y) {
src = (Uint32 *)((Uint8 *)icon->pixels + y * icon->pitch);
for (x = 0; x < icon->w; ++x) {
*dst++ = *src++;
}
}
X11_XChangeProperty(display, data->xwindow, _NET_WM_ICON, XA_CARDINAL,
32, PropModeReplace, (unsigned char *)propdata,
propsize);
SDL_free(propdata);
if (caught_x11_error) {
rc = SDL_SetError("An error occurred while trying to set the window's icon");
}
}
X11_XFlush(display);
if (prevHandler) {
X11_XSetErrorHandler(prevHandler);
caught_x11_error = SDL_FALSE;
}