/
SDL_x11video.c
1404 lines (1261 loc) · 38.8 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2006 Sam Lantinga
4
5
This library is free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
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
13
Lesser General Public License for more details.
14
15
16
17
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
18
19
Sam Lantinga
20
slouken@libsdl.org
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
*/
/* X11 based SDL video driver implementation.
Note: This implementation does not currently need X11 thread locking,
since the event thread uses a separate X connection and any
additional locking necessary is handled internally. However,
if full locking is neccessary, take a look at XInitThreads().
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#ifdef MTRR_SUPPORT
#include <asm/mtrr.h>
#include <sys/fcntl.h>
#endif
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#ifdef HAVE_ALLOCA
#define ALLOCA(n) ((void*)alloca(n))
#define FREEA(p)
#else
#define ALLOCA(n) malloc(n)
#define FREEA(p) free(p)
#endif
#include "SDL.h"
#include "SDL_error.h"
#include "SDL_timer.h"
#include "SDL_thread.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "SDL_endian.h"
#include "SDL_sysvideo.h"
#include "SDL_pixels_c.h"
#include "SDL_events_c.h"
#include "SDL_x11video.h"
#include "SDL_x11wm_c.h"
#include "SDL_x11mouse_c.h"
#include "SDL_x11events_c.h"
#include "SDL_x11modes_c.h"
#include "SDL_x11image_c.h"
#include "SDL_x11yuv_c.h"
#include "SDL_x11gl_c.h"
#include "SDL_x11gamma_c.h"
#include "blank_cursor.h"
/* Initialization/Query functions */
static int X11_VideoInit(_THIS, SDL_PixelFormat *vformat);
static SDL_Surface *X11_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
static int X11_ToggleFullScreen(_THIS, int on);
static void X11_UpdateMouse(_THIS);
static int X11_SetColors(_THIS, int firstcolor, int ncolors,
SDL_Color *colors);
static int X11_SetGammaRamp(_THIS, Uint16 *ramp);
static void X11_VideoQuit(_THIS);
83
84
85
86
87
/* X11 driver bootstrap functions */
static int X11_Available(void)
{
88
89
90
91
92
93
94
Display *display = NULL;
if ( SDL_X11_LoadSymbols() ) {
display = pXOpenDisplay(NULL);
if ( display != NULL ) {
pXCloseDisplay(display);
}
SDL_X11_UnloadSymbols();
95
96
97
98
99
100
101
102
103
104
105
106
107
108
}
return(display != NULL);
}
static void X11_DeleteDevice(SDL_VideoDevice *device)
{
if ( device ) {
if ( device->hidden ) {
free(device->hidden);
}
if ( device->gl_data ) {
free(device->gl_data);
}
free(device);
109
SDL_X11_UnloadSymbols();
110
111
112
113
114
}
}
static SDL_VideoDevice *X11_CreateDevice(int devindex)
{
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
SDL_VideoDevice *device = NULL;
if ( SDL_X11_LoadSymbols() ) {
/* Initialize all variables that we clean on shutdown */
device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
if ( device ) {
memset(device, 0, (sizeof *device));
device->hidden = (struct SDL_PrivateVideoData *)
malloc((sizeof *device->hidden));
device->gl_data = (struct SDL_PrivateGLData *)
malloc((sizeof *device->gl_data));
}
if ( (device == NULL) || (device->hidden == NULL) ||
(device->gl_data == NULL) ) {
SDL_OutOfMemory();
X11_DeleteDevice(device); /* calls SDL_X11_UnloadSymbols(). */
return(0);
}
memset(device->hidden, 0, (sizeof *device->hidden));
memset(device->gl_data, 0, (sizeof *device->gl_data));
/* Set the driver flags */
device->handles_any_size = 1;
/* Set the function pointers */
device->VideoInit = X11_VideoInit;
device->ListModes = X11_ListModes;
device->SetVideoMode = X11_SetVideoMode;
device->ToggleFullScreen = X11_ToggleFullScreen;
device->UpdateMouse = X11_UpdateMouse;
145
#ifdef XFREE86_XV
146
device->CreateYUVOverlay = X11_CreateYUVOverlay;
147
#endif
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
device->SetColors = X11_SetColors;
device->UpdateRects = NULL;
device->VideoQuit = X11_VideoQuit;
device->AllocHWSurface = X11_AllocHWSurface;
device->CheckHWBlit = NULL;
device->FillHWRect = NULL;
device->SetHWColorKey = NULL;
device->SetHWAlpha = NULL;
device->LockHWSurface = X11_LockHWSurface;
device->UnlockHWSurface = X11_UnlockHWSurface;
device->FlipHWSurface = X11_FlipHWSurface;
device->FreeHWSurface = X11_FreeHWSurface;
device->SetGamma = X11_SetVidModeGamma;
device->GetGamma = X11_GetVidModeGamma;
device->SetGammaRamp = X11_SetGammaRamp;
device->GetGammaRamp = NULL;
164
#ifdef HAVE_OPENGL_X11
165
166
167
168
169
device->GL_LoadLibrary = X11_GL_LoadLibrary;
device->GL_GetProcAddress = X11_GL_GetProcAddress;
device->GL_GetAttribute = X11_GL_GetAttribute;
device->GL_MakeCurrent = X11_GL_MakeCurrent;
device->GL_SwapBuffers = X11_GL_SwapBuffers;
170
#endif
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
device->SetCaption = X11_SetCaption;
device->SetIcon = X11_SetIcon;
device->IconifyWindow = X11_IconifyWindow;
device->GrabInput = X11_GrabInput;
device->GetWMInfo = X11_GetWMInfo;
device->FreeWMCursor = X11_FreeWMCursor;
device->CreateWMCursor = X11_CreateWMCursor;
device->ShowWMCursor = X11_ShowWMCursor;
device->WarpWMCursor = X11_WarpWMCursor;
device->CheckMouseMode = X11_CheckMouseMode;
device->InitOSKeymap = X11_InitOSKeymap;
device->PumpEvents = X11_PumpEvents;
device->free = X11_DeleteDevice;
}
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
return device;
}
VideoBootStrap X11_bootstrap = {
"x11", "X Window System",
X11_Available, X11_CreateDevice
};
/* Normal X11 error handler routine */
static int (*X_handler)(Display *, XErrorEvent *) = NULL;
static int x_errhandler(Display *d, XErrorEvent *e)
{
#ifdef XFREE86_VM
extern int vm_error;
#endif
#ifdef XFREE86_DGAMOUSE
extern int dga_error;
#endif
#ifdef XFREE86_VM
/* VidMode errors are non-fatal. :) */
/* Are the errors offset by one from the error base?
e.g. the error base is 143, the code is 148, and the
actual error is XF86VidModeExtensionDisabled (4) ?
*/
if ( (vm_error >= 0) &&
(((e->error_code == BadRequest)&&(e->request_code == vm_error)) ||
((e->error_code > vm_error) &&
(e->error_code <= (vm_error+XF86VidModeNumberErrors)))) ) {
#ifdef XFREE86_DEBUG
{ char errmsg[1024];
218
pXGetErrorText(d, e->error_code, errmsg, sizeof(errmsg));
219
220
221
222
223
224
225
226
227
228
229
230
231
232
printf("VidMode error: %s\n", errmsg);
}
#endif
return(0);
}
#endif /* XFREE86_VM */
#ifdef XFREE86_DGAMOUSE
/* DGA errors can be non-fatal. :) */
if ( (dga_error >= 0) &&
((e->error_code > dga_error) &&
(e->error_code <= (dga_error+XF86DGANumberErrors))) ) {
#ifdef XFREE86_DEBUG
{ char errmsg[1024];
233
pXGetErrorText(d, e->error_code, errmsg, sizeof(errmsg));
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
printf("DGA error: %s\n", errmsg);
}
#endif
return(0);
}
#endif /* XFREE86_DGAMOUSE */
return(X_handler(d,e));
}
/* X11 I/O error handler routine */
static int (*XIO_handler)(Display *) = NULL;
static int xio_errhandler(Display *d)
{
/* Ack! Lost X11 connection! */
/* We will crash if we try to clean up our display */
if ( current_video->hidden->Ximage ) {
SDL_VideoSurface->pixels = NULL;
}
current_video->hidden->X11_Display = NULL;
/* Continue with the standard X11 error handler */
return(XIO_handler(d));
}
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
static int (*Xext_handler)(Display *,char *,char *) = NULL;
static int xext_errhandler(Display *d, char *ext_name, char *reason)
{
#ifdef XFREE86_DEBUG
printf("Xext error inside SDL (may be harmless):\n");
printf(" Extension \"%s\" %s on display \"%s\".\n",
ext_name, reason, pXDisplayString(d));
#endif
if (strcmp(reason, "missing") == 0) {
/*
* Since the query itself, elsewhere, can handle a missing extension
* and the default behaviour in Xlib is to write to stderr, which
* generates unnecessary bug reports, we just ignore these.
*/
return 0;
}
/* Everything else goes to the default handler... */
return Xext_handler(d, ext_name, reason);
}
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
/* Find out what class name we should use */
static char *get_classname(char *classname, int maxlen)
{
char *spot;
#if defined(linux) || defined(__FreeBSD__)
char procfile[1024];
char linkfile[1024];
int linksize;
#endif
/* First allow environment variable override */
spot = getenv("SDL_VIDEO_X11_WMCLASS");
if ( spot ) {
strncpy(classname, spot, maxlen);
return classname;
}
/* Next look at the application's executable name */
#if defined(linux) || defined(__FreeBSD__)
#if defined(linux)
sprintf(procfile, "/proc/%d/exe", getpid());
#elif defined(__FreeBSD__)
sprintf(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 = strrchr(linkfile, '/');
if ( spot ) {
strncpy(classname, spot+1, maxlen);
} else {
strncpy(classname, linkfile, maxlen);
}
return classname;
}
#endif /* linux */
/* Finally use the default we've used forever */
strncpy(classname, "SDL_App", maxlen);
return classname;
}
326
327
328
/* Create auxiliary (toplevel) windows with the current visual */
static void create_aux_windows(_THIS)
{
329
char classname[1024];
330
331
332
333
334
335
336
337
338
339
340
341
342
XSetWindowAttributes xattr;
XWMHints *hints;
XTextProperty titleprop, iconprop;
int def_vis = (SDL_Visual == DefaultVisual(SDL_Display, SDL_Screen));
/* Don't create any extra windows if we are being managed */
if ( SDL_windowid ) {
FSwindow = 0;
WMwindow = strtol(SDL_windowid, NULL, 0);
return;
}
if(FSwindow)
343
pXDestroyWindow(SDL_Display, FSwindow);
344
345
346
347
348
349
xattr.override_redirect = True;
xattr.background_pixel = def_vis ? BlackPixel(SDL_Display, SDL_Screen) : 0;
xattr.border_pixel = 0;
xattr.colormap = SDL_XColorMap;
350
FSwindow = pXCreateWindow(SDL_Display, SDL_Root,
351
xinerama_x, xinerama_y, 32, 32, 0,
352
353
354
355
356
this->hidden->depth, InputOutput, SDL_Visual,
CWOverrideRedirect | CWBackPixel | CWBorderPixel
| CWColormap,
&xattr);
357
pXSelectInput(SDL_Display, FSwindow, StructureNotifyMask);
358
359
360
361
362
363
364
365
366
/* Tell KDE to keep the fullscreen window on top */
{
XEvent ev;
long mask;
memset(&ev, 0, sizeof(ev));
ev.xclient.type = ClientMessage;
ev.xclient.window = SDL_Root;
367
ev.xclient.message_type = pXInternAtom(SDL_Display,
368
369
370
371
372
"KWM_KEEP_ON_TOP", False);
ev.xclient.format = 32;
ev.xclient.data.l[0] = FSwindow;
ev.xclient.data.l[1] = CurrentTime;
mask = SubstructureRedirectMask;
373
pXSendEvent(SDL_Display, SDL_Root, False, mask, &ev);
374
375
376
377
378
379
}
hints = NULL;
titleprop.value = iconprop.value = NULL;
if(WMwindow) {
/* All window attributes must survive the recreation */
380
381
382
383
hints = pXGetWMHints(SDL_Display, WMwindow);
pXGetWMName(SDL_Display, WMwindow, &titleprop);
pXGetWMIconName(SDL_Display, WMwindow, &iconprop);
pXDestroyWindow(SDL_Display, WMwindow);
384
385
386
387
}
/* Create the window for windowed management */
/* (reusing the xattr structure above) */
388
WMwindow = pXCreateWindow(SDL_Display, SDL_Root, 0, 0, 32, 32, 0,
389
390
391
392
393
394
this->hidden->depth, InputOutput, SDL_Visual,
CWBackPixel | CWBorderPixel | CWColormap,
&xattr);
/* Set the input hints so we get keyboard input */
if(!hints) {
395
hints = pXAllocWMHints();
396
397
398
hints->input = True;
hints->flags = InputHint;
}
399
400
pXSetWMHints(SDL_Display, WMwindow, hints);
pXFree(hints);
401
if(titleprop.value) {
402
403
pXSetWMName(SDL_Display, WMwindow, &titleprop);
pXFree(titleprop.value);
404
405
}
if(iconprop.value) {
406
407
pXSetWMIconName(SDL_Display, WMwindow, &iconprop);
pXFree(iconprop.value);
408
409
}
410
pXSelectInput(SDL_Display, WMwindow,
411
412
413
414
FocusChangeMask | KeyPressMask | KeyReleaseMask
| PropertyChangeMask | StructureNotifyMask | KeymapStateMask);
/* Set the class hints so we can get an icon (AfterStep) */
415
get_classname(classname, sizeof(classname));
416
417
{
XClassHint *classhints;
418
classhints = pXAllocClassHint();
419
if(classhints != NULL) {
420
421
classhints->res_name = classname;
classhints->res_class = classname;
422
423
pXSetClassHint(SDL_Display, WMwindow, classhints);
pXFree(classhints);
424
425
426
}
}
427
428
429
430
431
/* Setup the communication with the IM server */
SDL_IM = NULL;
SDL_IC = NULL;
#ifdef X_HAVE_UTF8_STRING
432
SDL_IM = pXOpenIM(SDL_Display, NULL, classname, classname);
433
434
435
436
437
438
439
if (SDL_IM == NULL) {
SDL_SetError("no input method could be opened");
} else {
SDL_IC = pXCreateIC(SDL_IM,
XNClientWindow, WMwindow,
XNFocusWindow, WMwindow,
XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
440
441
XNResourceName, classname,
XNResourceClass, classname,
442
443
444
445
446
447
448
449
450
NULL);
if (SDL_IC == NULL) {
SDL_SetError("no input context could be created");
pXCloseIM(SDL_IM);
SDL_IM = NULL;
}
}
#endif
451
/* Allow the window to be deleted by the window manager */
452
453
WM_DELETE_WINDOW = pXInternAtom(SDL_Display, "WM_DELETE_WINDOW", False);
pXSetWMProtocols(SDL_Display, WMwindow, &WM_DELETE_WINDOW, 1);
454
455
456
457
458
459
460
461
462
463
}
static int X11_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
char *display;
int i;
/* Open the X11 display */
display = NULL; /* Get it from DISPLAY environment variable */
464
465
if ( (strncmp(pXDisplayName(display), ":", 1) == 0) ||
(strncmp(pXDisplayName(display), "unix:", 5) == 0) ) {
466
467
468
469
local_X11 = 1;
} else {
local_X11 = 0;
}
470
SDL_Display = pXOpenDisplay(display);
471
472
473
474
475
476
477
478
479
480
481
482
483
484
#if defined(__osf__) && defined(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 ( SDL_Display == NULL ) {
SDL_Delay(1000);
SDL_Display = pXOpenDisplay(display);
}
#endif
485
486
487
488
489
if ( SDL_Display == NULL ) {
SDL_SetError("Couldn't open X11 display");
return(-1);
}
#ifdef X11_DEBUG
490
pXSynchronize(SDL_Display, True);
491
492
493
494
495
496
#endif
/* Create an alternate X display for graphics updates -- allows us
to do graphics updates in a separate thread from event handling.
Thread-safe X11 doesn't seem to exist.
*/
497
GFX_Display = pXOpenDisplay(display);
498
499
500
501
502
503
if ( GFX_Display == NULL ) {
SDL_SetError("Couldn't open X11 display");
return(-1);
}
/* Set the normal X error handler */
504
X_handler = pXSetErrorHandler(x_errhandler);
505
506
/* Set the error handler if we lose the X display */
507
XIO_handler = pXSetIOErrorHandler(xio_errhandler);
508
509
510
511
/* Set the X extension error handler */
Xext_handler = pXSetExtensionErrorHandler(xext_errhandler);
512
513
514
515
516
/* use default screen (from $DISPLAY) */
SDL_Screen = DefaultScreen(SDL_Display);
#ifndef NO_SHARED_MEMORY
/* Check for MIT shared memory extension */
517
use_mitshm = 0;
518
if ( local_X11 ) {
519
use_mitshm = pXShmQueryExtension(SDL_Display);
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
}
#endif /* NO_SHARED_MEMORY */
/* Get the available video modes */
if(X11_GetVideoModes(this) < 0)
return -1;
/* Determine the default screen depth:
Use the default visual (or at least one with the same depth) */
SDL_DisplayColormap = DefaultColormap(SDL_Display, SDL_Screen);
for(i = 0; i < this->hidden->nvisuals; i++)
if(this->hidden->visuals[i].depth == DefaultDepth(SDL_Display,
SDL_Screen))
break;
if(i == this->hidden->nvisuals) {
/* default visual was useless, take the deepest one instead */
i = 0;
}
SDL_Visual = this->hidden->visuals[i].visual;
if ( SDL_Visual == DefaultVisual(SDL_Display, SDL_Screen) ) {
SDL_XColorMap = SDL_DisplayColormap;
} else {
542
SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root,
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
SDL_Visual, AllocNone);
}
this->hidden->depth = this->hidden->visuals[i].depth;
vformat->BitsPerPixel = this->hidden->visuals[i].bpp;
if ( vformat->BitsPerPixel > 8 ) {
vformat->Rmask = SDL_Visual->red_mask;
vformat->Gmask = SDL_Visual->green_mask;
vformat->Bmask = SDL_Visual->blue_mask;
}
X11_SaveVidModeGamma(this);
/* See if we have been passed a window to use */
SDL_windowid = getenv("SDL_WINDOWID");
/* Create the fullscreen and managed windows */
create_aux_windows(this);
/* Create the blank cursor */
SDL_BlankCursor = this->CreateWMCursor(this, blank_cdata, blank_cmask,
BLANK_CWIDTH, BLANK_CHEIGHT,
BLANK_CHOTX, BLANK_CHOTY);
/* Fill in some window manager capabilities */
this->info.wm_available = 1;
/* We're done! */
569
pXFlush(SDL_Display);
570
571
572
573
574
575
576
577
578
579
580
581
582
583
return(0);
}
static void X11_DestroyWindow(_THIS, SDL_Surface *screen)
{
/* Clean up OpenGL */
if ( screen ) {
screen->flags &= ~(SDL_OPENGL|SDL_OPENGLBLIT);
}
X11_GL_Shutdown(this);
if ( ! SDL_windowid ) {
/* Hide the managed window */
if ( WMwindow ) {
584
pXUnmapWindow(SDL_Display, WMwindow);
585
586
587
588
589
590
591
592
}
if ( screen && (screen->flags & SDL_FULLSCREEN) ) {
screen->flags &= ~SDL_FULLSCREEN;
X11_LeaveFullScreen(this);
}
/* Destroy the output window */
if ( SDL_Window ) {
593
pXDestroyWindow(SDL_Display, SDL_Window);
594
595
596
597
598
599
600
601
602
}
/* Free the colormap entries */
if ( SDL_XPixels ) {
int numcolors;
unsigned long pixel;
numcolors = SDL_Visual->map_entries;
for ( pixel=0; pixel<numcolors; ++pixel ) {
while ( SDL_XPixels[pixel] > 0 ) {
603
pXFreeColors(GFX_Display,
604
605
606
607
608
609
610
611
612
613
SDL_DisplayColormap,&pixel,1,0);
--SDL_XPixels[pixel];
}
}
free(SDL_XPixels);
SDL_XPixels = NULL;
}
/* Free the graphics context */
if ( SDL_GC ) {
614
pXFreeGC(SDL_Display, SDL_GC);
615
616
617
618
619
SDL_GC = 0;
}
}
}
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
static SDL_bool X11_WindowPosition(_THIS, int *x, int *y, int w, int h)
{
const char *window = getenv("SDL_VIDEO_WINDOW_POS");
const char *center = getenv("SDL_VIDEO_CENTERED");
if ( window ) {
if ( sscanf(window, "%d,%d", x, y) == 2 ) {
return SDL_TRUE;
}
if ( strcmp(window, "center") == 0 ) {
center = window;
}
}
if ( center ) {
*x = (DisplayWidth(SDL_Display, SDL_Screen) - w)/2;
*y = (DisplayHeight(SDL_Display, SDL_Screen) - h)/2;
return SDL_TRUE;
}
return SDL_FALSE;
}
640
641
642
643
static void X11_SetSizeHints(_THIS, int w, int h, Uint32 flags)
{
XSizeHints *hints;
644
hints = pXAllocSizeHints();
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
if ( hints ) {
if ( flags & SDL_RESIZABLE ) {
hints->min_width = 32;
hints->min_height = 32;
hints->max_height = 4096;
hints->max_width = 4096;
} else {
hints->min_width = hints->max_width = w;
hints->min_height = hints->max_height = h;
}
hints->flags = PMaxSize | PMinSize;
if ( flags & SDL_FULLSCREEN ) {
hints->x = 0;
hints->y = 0;
hints->flags |= USPosition;
} else
/* Center it, if desired */
662
if ( X11_WindowPosition(this, &hints->x, &hints->y, w, h) ) {
663
hints->flags |= USPosition;
664
pXMoveWindow(SDL_Display, WMwindow, hints->x, hints->y);
665
666
/* Flush the resize event so we don't catch it later */
667
pXSync(SDL_Display, True);
668
}
669
670
pXSetWMNormalHints(SDL_Display, WMwindow, hints);
pXFree(hints);
671
672
673
674
675
676
677
678
679
680
681
}
/* Respect the window caption style */
if ( flags & SDL_NOFRAME ) {
SDL_bool set;
Atom WM_HINTS;
/* We haven't modified the window manager hints yet */
set = SDL_FALSE;
/* First try to set MWM hints */
682
WM_HINTS = pXInternAtom(SDL_Display, "_MOTIF_WM_HINTS", True);
683
684
685
686
687
688
689
690
691
692
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, 0, 0, 0 };
693
pXChangeProperty(SDL_Display, WMwindow,
694
695
696
697
698
699
700
WM_HINTS, WM_HINTS, 32,
PropModeReplace,
(unsigned char *)&MWMHints,
sizeof(MWMHints)/sizeof(long));
set = SDL_TRUE;
}
/* Now try to set KWM hints */
701
WM_HINTS = pXInternAtom(SDL_Display, "KWM_WIN_DECORATION", True);
702
703
704
if ( WM_HINTS != None ) {
long KWMHints = 0;
705
pXChangeProperty(SDL_Display, WMwindow,
706
707
708
709
710
711
712
WM_HINTS, WM_HINTS, 32,
PropModeReplace,
(unsigned char *)&KWMHints,
sizeof(KWMHints)/sizeof(long));
set = SDL_TRUE;
}
/* Now try to set GNOME hints */
713
WM_HINTS = pXInternAtom(SDL_Display, "_WIN_HINTS", True);
714
715
716
if ( WM_HINTS != None ) {
long GNOMEHints = 0;
717
pXChangeProperty(SDL_Display, WMwindow,
718
719
720
721
722
723
724
725
WM_HINTS, WM_HINTS, 32,
PropModeReplace,
(unsigned char *)&GNOMEHints,
sizeof(GNOMEHints)/sizeof(long));
set = SDL_TRUE;
}
/* Finally set the transient hints if necessary */
if ( ! set ) {
726
pXSetTransientForHint(SDL_Display, WMwindow, SDL_Root);
727
728
729
730
731
732
733
734
735
}
} else {
SDL_bool set;
Atom WM_HINTS;
/* We haven't modified the window manager hints yet */
set = SDL_FALSE;
/* First try to unset MWM hints */
736
WM_HINTS = pXInternAtom(SDL_Display, "_MOTIF_WM_HINTS", True);
737
if ( WM_HINTS != None ) {
738
pXDeleteProperty(SDL_Display, WMwindow, WM_HINTS);
739
740
741
set = SDL_TRUE;
}
/* Now try to unset KWM hints */
742
WM_HINTS = pXInternAtom(SDL_Display, "KWM_WIN_DECORATION", True);
743
if ( WM_HINTS != None ) {
744
pXDeleteProperty(SDL_Display, WMwindow, WM_HINTS);
745
746
747
set = SDL_TRUE;
}
/* Now try to unset GNOME hints */
748
WM_HINTS = pXInternAtom(SDL_Display, "_WIN_HINTS", True);
749
if ( WM_HINTS != None ) {
750
pXDeleteProperty(SDL_Display, WMwindow, WM_HINTS);
751
752
753
754
755
set = SDL_TRUE;
}
/* Finally unset the transient hints if necessary */
if ( ! set ) {
/* NOTE: Does this work? */
756
pXSetTransientForHint(SDL_Display, WMwindow, None);
757
758
759
760
761
762
763
764
765
766
767
768
769
770
}
}
}
static int X11_CreateWindow(_THIS, SDL_Surface *screen,
int w, int h, int bpp, Uint32 flags)
{
int i, depth;
Visual *vis;
int vis_change;
/* If a window is already present, destroy it and start fresh */
if ( SDL_Window ) {
X11_DestroyWindow(this, screen);
771
switch_waiting = 0; /* Prevent jump back to now-meaningless state. */
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
}
/* See if we have been given a window id */
if ( SDL_windowid ) {
SDL_Window = strtol(SDL_windowid, NULL, 0);
} else {
SDL_Window = 0;
}
/* find out which visual we are going to use */
if ( flags & SDL_OPENGL ) {
XVisualInfo *vi;
vi = X11_GL_GetVisual(this);
if( !vi ) {
return -1;
}
vis = vi->visual;
depth = vi->depth;
} else if ( SDL_windowid ) {
XWindowAttributes a;
794
pXGetWindowAttributes(SDL_Display, SDL_Window, &a);
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
vis = a.visual;
depth = a.depth;
} else {
for ( i = 0; i < this->hidden->nvisuals; i++ ) {
if ( this->hidden->visuals[i].bpp == bpp )
break;
}
if ( i == this->hidden->nvisuals ) {
SDL_SetError("No matching visual for requested depth");
return -1; /* should never happen */
}
vis = this->hidden->visuals[i].visual;
depth = this->hidden->visuals[i].depth;
}
#ifdef X11_DEBUG
printf("Choosing %s visual at %d bpp - %d colormap entries\n", vis->class == PseudoColor ? "PseudoColor" : (vis->class == TrueColor ? "TrueColor" : (vis->class == DirectColor ? "DirectColor" : "Unknown")), depth, vis->map_entries);
#endif
vis_change = (vis != SDL_Visual);
SDL_Visual = vis;
this->hidden->depth = depth;
/* Allocate the new pixel format for this video mode */
if ( ! SDL_ReallocFormat(screen, bpp,
vis->red_mask, vis->green_mask, vis->blue_mask, 0) )
return -1;
/* Create the appropriate colormap */
if ( SDL_XColorMap != SDL_DisplayColormap ) {
823
pXFreeColormap(SDL_Display, SDL_XColorMap);
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
}
if ( SDL_Visual->class == PseudoColor ) {
int ncolors;
/* Allocate the pixel flags */
ncolors = SDL_Visual->map_entries;
SDL_XPixels = malloc(ncolors * sizeof(int));
if(SDL_XPixels == NULL) {
SDL_OutOfMemory();
return -1;
}
memset(SDL_XPixels, 0, ncolors * sizeof(*SDL_XPixels));
/* always allocate a private colormap on non-default visuals */
if ( SDL_Visual != DefaultVisual(SDL_Display, SDL_Screen) ) {
flags |= SDL_HWPALETTE;
}
if ( flags & SDL_HWPALETTE ) {
screen->flags |= SDL_HWPALETTE;
843
SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root,
844
845
846
847
848
849
850
SDL_Visual, AllocAll);
} else {
SDL_XColorMap = SDL_DisplayColormap;
}
} else if ( SDL_Visual->class == DirectColor ) {
/* Create a colormap which we can manipulate for gamma */
851
SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root,
852
SDL_Visual, AllocAll);
853
pXSync(SDL_Display, False);
854
855
856
857
858
859
860
861
/* Initialize the colormap to the identity mapping */
SDL_GetGammaRamp(0, 0, 0);
this->screen = screen;
X11_SetGammaRamp(this, this->gamma);
this->screen = NULL;
} else {
/* Create a read-only colormap for our window */
862
SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root,
863
864
865
866
867
868
869
870
871
872
873
874
SDL_Visual, AllocNone);
}
/* Recreate the auxiliary windows, if needed (required for GL) */
if ( vis_change )
create_aux_windows(this);
if(screen->flags & SDL_HWPALETTE) {
/* Since the full-screen window might have got a nonzero background
colour (0 is white on some displays), we should reset the
background to 0 here since that is what the user expects
with a private colormap */
875
876
pXSetWindowBackground(SDL_Display, FSwindow, 0);
pXClearWindow(SDL_Display, FSwindow);
877
878
879
880
881
882
883
}
/* resize the (possibly new) window manager window */
if( !SDL_windowid ) {
X11_SetSizeHints(this, w, h, flags);
current_w = w;
current_h = h;
884
pXResizeWindow(SDL_Display, WMwindow, w, h);
885
886
887
888
889
890
891
892
893
894
895
896
897
898
}
/* Create (or use) the X11 display window */
if ( !SDL_windowid ) {
if ( flags & SDL_OPENGL ) {
if ( X11_GL_CreateWindow(this, w, h) < 0 ) {
return(-1);
}
} else {
XSetWindowAttributes swa;
swa.background_pixel = 0;
swa.border_pixel = 0;
swa.colormap = SDL_XColorMap;
899
SDL_Window = pXCreateWindow(SDL_Display, WMwindow,
900
901
902
903
904
905
0, 0, w, h, 0, depth,
InputOutput, SDL_Visual,
CWBackPixel | CWBorderPixel
| CWColormap, &swa);
}
/* Only manage our input if we own the window */
906
pXSelectInput(SDL_Display, SDL_Window,
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
( EnterWindowMask | LeaveWindowMask
| ButtonPressMask | ButtonReleaseMask
| PointerMotionMask | ExposureMask ));
}
/* Create the graphics context here, once we have a window */
if ( flags & SDL_OPENGL ) {
if ( X11_GL_CreateContext(this) < 0 ) {
return(-1);
} else {
screen->flags |= SDL_OPENGL;
}
} else {
XGCValues gcv;
gcv.graphics_exposures = False;
922
SDL_GC = pXCreateGC(SDL_Display, SDL_Window,
923
924
925
926
927
928
929
930
931
GCGraphicsExposures, &gcv);
if ( ! SDL_GC ) {
SDL_SetError("Couldn't create graphics context");
return(-1);
}
}
/* Set our colormaps when not setting a GL mode */
if ( ! (flags & SDL_OPENGL) ) {
932
pXSetWindowColormap(SDL_Display, SDL_Window, SDL_XColorMap);
933
if( !SDL_windowid ) {
934
935
pXSetWindowColormap(SDL_Display, FSwindow, SDL_XColorMap);
pXSetWindowColormap(SDL_Display, WMwindow, SDL_XColorMap);
936
937
938
939
940
941
942
943
944
945
946
947
948
949
}
}
#if 0 /* This is an experiment - are the graphics faster now? - nope. */
if ( getenv("SDL_VIDEO_X11_BACKINGSTORE") )
#endif
/* Cache the window in the server, when possible */
{
Screen *xscreen;
XSetWindowAttributes a;
xscreen = ScreenOfDisplay(SDL_Display, SDL_Screen);
a.backing_store = DoesBackingStore(xscreen);
if ( a.backing_store != NotUseful ) {
950
pXChangeWindowAttributes(SDL_Display, SDL_Window,
951
952
953
954
955
CWBackingStore, &a);
}
}
/* Update the internal keyboard state */
956
X11_SetKeyboardState(SDL_Display, NULL);
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
/* When the window is first mapped, ignore non-modifier keys */
{
Uint8 *keys = SDL_GetKeyState(NULL);
for ( i = 0; i < SDLK_LAST; ++i ) {
switch (i) {
case SDLK_NUMLOCK:
case SDLK_CAPSLOCK:
case SDLK_LCTRL:
case SDLK_RCTRL:
case SDLK_LSHIFT:
case SDLK_RSHIFT:
case SDLK_LALT:
case SDLK_RALT:
case SDLK_LMETA:
case SDLK_RMETA:
case SDLK_MODE:
break;
default:
keys[i] = SDL_RELEASED;
break;
}
}
}
982
983
/* Map them both and go fullscreen, if requested */
if ( ! SDL_windowid ) {
984
985
pXMapWindow(SDL_Display, SDL_Window);
pXMapWindow(SDL_Display, WMwindow);
986
X11_WaitMapped(this, WMwindow);
987
988
989
990
991
992
993
if ( flags & SDL_FULLSCREEN ) {
screen->flags |= SDL_FULLSCREEN;
X11_EnterFullScreen(this);
} else {
screen->flags &= ~SDL_FULLSCREEN;
}
}
994
995
996
997
998
999
1000
return(0);
}
static int X11_ResizeWindow(_THIS,
SDL_Surface *screen, int w, int h, Uint32 flags)
{