This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_compat.c
1415 lines (1266 loc) · 38.4 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
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
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"
/* This file contains functions for backwards compatibility with SDL 1.2 */
#include "SDL.h"
27
#include "SDL_syswm.h"
28
29
#include "video/SDL_sysvideo.h"
30
#include "video/SDL_pixels_c.h"
31
32
33
34
35
36
37
static SDL_WindowID SDL_VideoWindow;
static SDL_TextureID SDL_VideoTexture;
static SDL_Surface *SDL_VideoSurface;
static SDL_Surface *SDL_ShadowSurface;
static SDL_Surface *SDL_PublicSurface;
38
39
40
static char *wm_title;
char *
41
SDL_AudioDriverName(char *namebuf, int maxlen)
42
{
43
const char *name = SDL_GetCurrentAudioDriver();
44
if (name) {
45
SDL_strlcpy(namebuf, name, maxlen);
46
47
48
49
50
51
return namebuf;
}
return NULL;
}
char *
52
SDL_VideoDriverName(char *namebuf, int maxlen)
53
{
54
const char *name = SDL_GetCurrentVideoDriver();
55
if (name) {
56
SDL_strlcpy(namebuf, name, maxlen);
57
58
59
60
61
return namebuf;
}
return NULL;
}
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
const SDL_VideoInfo *
SDL_GetVideoInfo(void)
{
static SDL_VideoInfo info;
/* Memory leak, compatibility code, who cares? */
if (!info.vfmt && SDL_GetDesktopDisplayMode()) {
int bpp;
Uint32 Rmask, Gmask, Bmask, Amask;
SDL_PixelFormatEnumToMasks(SDL_GetDesktopDisplayMode()->format, &bpp,
&Rmask, &Gmask, &Bmask, &Amask);
info.vfmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
}
return &info;
}
79
int
80
SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags)
81
82
83
{
int i, actual_bpp = 0;
84
if (!SDL_GetVideoDevice()) {
85
86
87
88
return 0;
}
if (!(flags & SDL_FULLSCREEN)) {
89
return SDL_BITSPERPIXEL(SDL_GetDesktopDisplayMode()->format);
90
91
}
92
93
for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
const SDL_DisplayMode *mode = SDL_GetDisplayMode(i);
94
95
96
97
if (!mode->w || !mode->h || (width == mode->w && height == mode->h)) {
if (!mode->format) {
return bpp;
}
98
if (SDL_BITSPERPIXEL(mode->format) >= (Uint32) bpp) {
99
actual_bpp = SDL_BITSPERPIXEL(mode->format);
100
101
102
103
104
105
106
}
}
}
return actual_bpp;
}
SDL_Rect **
107
SDL_ListModes(SDL_PixelFormat * format, Uint32 flags)
108
109
110
111
{
int i, nmodes;
SDL_Rect **modes;
112
if (!SDL_GetVideoDevice()) {
113
114
115
116
117
118
119
120
121
return NULL;
}
if (!(flags & SDL_FULLSCREEN)) {
return (SDL_Rect **) (-1);
}
/* Memory leak, but this is a compatibility function, who cares? */
nmodes = 0;
122
modes = NULL;
123
124
for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
const SDL_DisplayMode *mode = SDL_GetDisplayMode(i);
125
126
127
if (!mode->w || !mode->h) {
return (SDL_Rect **) (-1);
}
128
if (SDL_BITSPERPIXEL(mode->format) != format->BitsPerPixel) {
129
130
131
132
133
134
135
continue;
}
if (nmodes > 0 && modes[nmodes - 1]->w == mode->w
&& modes[nmodes - 1]->h == mode->h) {
continue;
}
136
modes = SDL_realloc(modes, (nmodes + 2) * sizeof(*modes));
137
138
139
if (!modes) {
return NULL;
}
140
modes[nmodes] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect));
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
if (!modes[nmodes]) {
return NULL;
}
modes[nmodes]->x = 0;
modes[nmodes]->y = 0;
modes[nmodes]->w = mode->w;
modes[nmodes]->h = mode->h;
++nmodes;
}
if (modes) {
modes[nmodes] = NULL;
}
return modes;
}
156
static int
157
SDL_CompatEventFilter(void *userdata, SDL_Event * event)
158
159
160
161
162
163
{
SDL_Event fake;
switch (event->type) {
case SDL_WINDOWEVENT:
switch (event->window.event) {
164
165
166
167
168
169
case SDL_WINDOWEVENT_EXPOSED:
if (!SDL_HasEvent(SDL_VIDEOEXPOSEMASK)) {
fake.type = SDL_VIDEOEXPOSE;
SDL_PushEvent(&fake);
}
break;
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
case SDL_WINDOWEVENT_RESIZED:
fake.type = SDL_VIDEORESIZE;
fake.resize.w = event->window.data1;
fake.resize.h = event->window.data2;
SDL_PushEvent(&fake);
break;
case SDL_WINDOWEVENT_MINIMIZED:
fake.type = SDL_ACTIVEEVENT;
fake.active.gain = 0;
fake.active.state = SDL_APPACTIVE;
SDL_PushEvent(&fake);
break;
case SDL_WINDOWEVENT_RESTORED:
fake.type = SDL_ACTIVEEVENT;
fake.active.gain = 1;
fake.active.state = SDL_APPACTIVE;
SDL_PushEvent(&fake);
break;
case SDL_WINDOWEVENT_ENTER:
fake.type = SDL_ACTIVEEVENT;
fake.active.gain = 1;
fake.active.state = SDL_APPMOUSEFOCUS;
SDL_PushEvent(&fake);
break;
case SDL_WINDOWEVENT_LEAVE:
fake.type = SDL_ACTIVEEVENT;
fake.active.gain = 0;
fake.active.state = SDL_APPMOUSEFOCUS;
SDL_PushEvent(&fake);
break;
case SDL_WINDOWEVENT_FOCUS_GAINED:
fake.type = SDL_ACTIVEEVENT;
fake.active.gain = 1;
fake.active.state = SDL_APPINPUTFOCUS;
SDL_PushEvent(&fake);
break;
case SDL_WINDOWEVENT_FOCUS_LOST:
fake.type = SDL_ACTIVEEVENT;
fake.active.gain = 1;
fake.active.state = SDL_APPINPUTFOCUS;
SDL_PushEvent(&fake);
break;
212
213
214
215
case SDL_WINDOWEVENT_CLOSE:
fake.type = SDL_QUIT;
SDL_PushEvent(&fake);
break;
216
}
217
218
219
220
221
case SDL_KEYDOWN:
case SDL_KEYUP:
{
Uint32 unicode = 0;
if (event->key.type == SDL_KEYDOWN && event->key.keysym.sym < 256) {
222
unicode = event->key.keysym.sym;
223
if (unicode >= 'a' && unicode <= 'z') {
224
225
226
227
228
int shifted = !!(event->key.keysym.mod & KMOD_SHIFT);
int capslock = !!(event->key.keysym.mod & KMOD_CAPS);
if ((shifted ^ capslock) != 0) {
unicode = SDL_toupper(unicode);
}
229
230
231
232
233
234
235
}
}
if (unicode) {
event->key.keysym.unicode = unicode;
}
break;
}
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
case SDL_MOUSEWHEEL:
{
Uint8 button;
int selected;
int x, y;
selected = SDL_SelectMouse(event->wheel.which);
SDL_GetMouseState(&x, &y);
SDL_SelectMouse(selected);
if (event->wheel.motion > 0) {
button = SDL_BUTTON_WHEELUP;
} else {
button = SDL_BUTTON_WHEELDOWN;
}
fake.button.which = event->wheel.windowID;
fake.button.button = button;
fake.button.x = x;
fake.button.y = y;
fake.button.windowID = event->wheel.windowID;
fake.type = SDL_MOUSEBUTTONDOWN;
fake.button.state = SDL_PRESSED;
SDL_PushEvent(&fake);
fake.type = SDL_MOUSEBUTTONUP;
fake.button.state = SDL_RELEASED;
SDL_PushEvent(&fake);
break;
}
268
}
269
return 1;
270
271
272
273
274
275
276
277
278
279
280
281
282
283
}
static int
SDL_VideoPaletteChanged(void *userdata, SDL_Palette * palette)
{
if (userdata == SDL_ShadowSurface) {
/* If the shadow palette changed, make the changes visible */
if (!SDL_VideoSurface->format->palette) {
SDL_UpdateRect(SDL_ShadowSurface, 0, 0, 0, 0);
}
}
if (userdata == SDL_VideoSurface) {
return SDL_SetDisplayPalette(palette->colors, 0, palette->ncolors);
}
284
return 0;
285
286
}
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
static void
GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
{
const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
if (window) {
if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
return;
}
if (SDL_strcmp(window, "center") == 0) {
center = window;
}
}
if (center) {
const SDL_DisplayMode *current = SDL_GetDesktopDisplayMode();
*x = (current->w - w) / 2;
*y = (current->h - h) / 2;
}
}
307
SDL_Surface *
308
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
309
{
310
const SDL_DisplayMode *desktop_mode;
311
SDL_DisplayMode mode;
312
313
int window_x = SDL_WINDOWPOS_UNDEFINED;
int window_y = SDL_WINDOWPOS_UNDEFINED;
314
315
316
Uint32 window_flags;
Uint32 desktop_format;
Uint32 desired_format;
317
Uint32 surface_flags;
318
319
320
if (!SDL_GetVideoDevice()) {
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) {
321
322
323
324
325
return NULL;
}
}
/* Destroy existing window */
326
327
328
329
330
331
SDL_PublicSurface = NULL;
if (SDL_ShadowSurface) {
SDL_FreeSurface(SDL_ShadowSurface);
SDL_ShadowSurface = NULL;
}
if (SDL_VideoSurface) {
332
333
334
SDL_DelPaletteWatch(SDL_VideoSurface->format->palette,
SDL_VideoPaletteChanged, NULL);
SDL_FreeSurface(SDL_VideoSurface);
335
336
SDL_VideoSurface = NULL;
}
337
338
339
if (SDL_VideoWindow) {
SDL_GetWindowPosition(SDL_VideoWindow, &window_x, &window_y);
}
340
SDL_DestroyWindow(SDL_VideoWindow);
341
342
/* Set up the event filter */
343
344
if (!SDL_GetEventFilter(NULL, NULL)) {
SDL_SetEventFilter(SDL_CompatEventFilter, NULL);
345
346
}
347
348
349
350
351
352
353
354
355
356
357
358
359
360
/* Create a new window */
window_flags = SDL_WINDOW_SHOWN;
if (flags & SDL_FULLSCREEN) {
window_flags |= SDL_WINDOW_FULLSCREEN;
}
if (flags & SDL_OPENGL) {
window_flags |= SDL_WINDOW_OPENGL;
}
if (flags & SDL_RESIZABLE) {
window_flags |= SDL_WINDOW_RESIZABLE;
}
if (flags & SDL_NOFRAME) {
window_flags |= SDL_WINDOW_BORDERLESS;
}
361
GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
362
SDL_SetFullscreenDisplayMode(NULL);
363
SDL_VideoWindow =
364
SDL_CreateWindow(wm_title, window_x, window_y, width, height,
365
window_flags);
366
if (!SDL_VideoWindow) {
367
368
369
return NULL;
}
370
window_flags = SDL_GetWindowFlags(SDL_VideoWindow);
371
surface_flags = 0;
372
373
374
375
376
377
378
379
380
381
382
383
384
if (window_flags & SDL_WINDOW_FULLSCREEN) {
surface_flags |= SDL_FULLSCREEN;
}
if (window_flags & SDL_WINDOW_OPENGL) {
surface_flags |= SDL_OPENGL;
}
if (window_flags & SDL_WINDOW_RESIZABLE) {
surface_flags |= SDL_RESIZABLE;
}
if (window_flags & SDL_WINDOW_BORDERLESS) {
surface_flags |= SDL_NOFRAME;
}
385
/* Set up the desired display mode */
386
387
388
389
desktop_mode = SDL_GetDesktopDisplayMode();
desktop_format = desktop_mode->format;
if (desktop_format && ((flags & SDL_ANYFORMAT)
|| (bpp == SDL_BITSPERPIXEL(desktop_format)))) {
390
391
392
desired_format = desktop_format;
} else {
switch (bpp) {
393
394
395
396
397
398
399
case 0:
if (desktop_format) {
desired_format = desktop_format;
} else {
desired_format = SDL_PixelFormat_RGB888;
}
break;
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
case 8:
desired_format = SDL_PixelFormat_Index8;
break;
case 15:
desired_format = SDL_PixelFormat_RGB555;
break;
case 16:
desired_format = SDL_PixelFormat_RGB565;
break;
case 24:
desired_format = SDL_PixelFormat_RGB24;
break;
case 32:
desired_format = SDL_PixelFormat_RGB888;
break;
default:
416
SDL_SetError("Unsupported bpp in SDL_SetVideoMode()");
417
418
419
420
421
422
423
424
425
426
return NULL;
}
}
mode.format = desired_format;
mode.w = width;
mode.h = height;
mode.refresh_rate = 0;
/* Set the desired display mode */
if (flags & SDL_FULLSCREEN) {
427
if (SDL_SetFullscreenDisplayMode(&mode) < 0) {
428
429
430
431
return NULL;
}
}
432
433
434
435
436
437
438
439
440
441
442
443
/* If we're in OpenGL mode, just create a stub surface and we're done! */
if (flags & SDL_OPENGL) {
SDL_VideoSurface =
SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
if (!SDL_VideoSurface) {
return NULL;
}
SDL_VideoSurface->flags |= surface_flags;
SDL_PublicSurface = SDL_VideoSurface;
return SDL_PublicSurface;
}
444
445
/* Create a renderer for the window */
if (SDL_CreateRenderer(SDL_VideoWindow, -1, 0) < 0) {
446
447
448
return NULL;
}
449
450
451
452
453
454
455
456
457
/* Create a texture for the screen surface */
SDL_VideoTexture =
SDL_CreateTexture(desired_format, SDL_TextureAccess_Local, width,
height);
if (!SDL_VideoTexture) {
SDL_VideoTexture =
SDL_CreateTexture(0, SDL_TextureAccess_Local, width, height);
}
if (!SDL_VideoTexture) {
458
459
460
return NULL;
}
461
462
463
464
/* Create the screen surface */
SDL_VideoSurface = SDL_CreateRGBSurfaceFromTexture(SDL_VideoTexture);
if (!SDL_VideoSurface) {
return NULL;
465
}
466
SDL_VideoSurface->flags |= surface_flags;
467
468
469
470
471
472
/* Set a default screen palette */
if (SDL_VideoSurface->format->palette) {
SDL_VideoSurface->flags |= SDL_HWPALETTE;
SDL_DitherColors(SDL_VideoSurface->format->palette->colors,
SDL_VideoSurface->format->BitsPerPixel);
473
474
475
476
477
SDL_AddPaletteWatch(SDL_VideoSurface->format->palette,
SDL_VideoPaletteChanged, NULL);
SDL_SetPaletteColors(SDL_VideoSurface->format->palette,
SDL_VideoSurface->format->palette->colors, 0,
SDL_VideoSurface->format->palette->ncolors);
478
479
480
}
/* Create a shadow surface if necessary */
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
if (((bpp != SDL_VideoSurface->format->BitsPerPixel)
&& !(flags & SDL_ANYFORMAT))
|| ((SDL_VideoSurface->flags & SDL_HWSURFACE)
&& !(flags & SDL_HWSURFACE))) {
if ((bpp == SDL_VideoSurface->format->BitsPerPixel)
|| (flags & SDL_ANYFORMAT)) {
SDL_ShadowSurface =
SDL_CreateRGBSurface(0, width, height,
SDL_VideoSurface->format->BitsPerPixel,
SDL_VideoSurface->format->Rmask,
SDL_VideoSurface->format->Gmask,
SDL_VideoSurface->format->Bmask,
SDL_VideoSurface->format->Amask);
} else {
SDL_ShadowSurface =
SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
}
if (!SDL_ShadowSurface) {
499
500
return NULL;
}
501
SDL_ShadowSurface->flags |= surface_flags;
502
503
504
505
/* 8-bit SDL_ShadowSurface surfaces report that they have exclusive palette */
if (SDL_ShadowSurface->format->palette) {
SDL_ShadowSurface->flags |= SDL_HWPALETTE;
506
507
508
509
510
511
512
if (SDL_VideoSurface->format->palette) {
SDL_SetSurfacePalette(SDL_ShadowSurface,
SDL_VideoSurface->format->palette);
} else {
SDL_DitherColors(SDL_ShadowSurface->format->palette->colors,
SDL_ShadowSurface->format->BitsPerPixel);
}
513
514
}
}
515
516
SDL_PublicSurface =
(SDL_ShadowSurface ? SDL_ShadowSurface : SDL_VideoSurface);
517
518
/* Clear the surface for display */
519
SDL_FillRect(SDL_PublicSurface, NULL, 0);
520
521
522
/* We're finally done! */
return SDL_PublicSurface;
523
524
}
525
SDL_Surface *
526
SDL_GetVideoSurface(void)
527
{
528
return SDL_PublicSurface;
529
530
}
531
532
533
534
535
536
537
SDL_Surface *
SDL_DisplayFormat(SDL_Surface * surface)
{
Uint32 flags;
if (!SDL_PublicSurface) {
SDL_SetError("No video mode has been set");
538
return NULL;
539
}
540
541
/* Set the flags appropriate for copying to display surface */
542
flags = SDL_SWSURFACE;
543
544
545
546
547
548
549
#ifdef AUTORLE_DISPLAYFORMAT
flags |= (surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA));
flags |= SDL_RLEACCELOK;
#else
flags |=
surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCELOK);
#endif
550
return SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags);
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
}
SDL_Surface *
SDL_DisplayFormatAlpha(SDL_Surface * surface)
{
SDL_PixelFormat *vf;
SDL_PixelFormat *format;
SDL_Surface *converted;
Uint32 flags;
/* default to ARGB8888 */
Uint32 amask = 0xff000000;
Uint32 rmask = 0x00ff0000;
Uint32 gmask = 0x0000ff00;
Uint32 bmask = 0x000000ff;
if (!SDL_PublicSurface) {
SDL_SetError("No video mode has been set");
568
return NULL;
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
}
vf = SDL_PublicSurface->format;
switch (vf->BytesPerPixel) {
case 2:
/* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
For anything else (like ARGB4444) it doesn't matter
since we have no special code for it anyway */
if ((vf->Rmask == 0x1f) &&
(vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
rmask = 0xff;
bmask = 0xff0000;
}
break;
case 3:
case 4:
/* Keep the video format, as long as the high 8 bits are
unused or alpha */
if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
rmask = 0xff;
bmask = 0xff0000;
}
break;
default:
/* We have no other optimised formats right now. When/if a new
optimised alpha format is written, add the converter here */
break;
}
format = SDL_AllocFormat(32, rmask, gmask, bmask, amask);
flags = SDL_PublicSurface->flags & SDL_HWSURFACE;
flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
converted = SDL_ConvertSurface(surface, format, flags);
SDL_FreeFormat(format);
604
605
606
607
608
609
610
611
return converted;
}
int
SDL_Flip(SDL_Surface * screen)
{
SDL_UpdateRect(screen, 0, 0, 0, 0);
return 0;
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
}
void
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
{
if (screen) {
SDL_Rect rect;
/* Perform some checking */
if (w == 0)
w = screen->w;
if (h == 0)
h = screen->h;
if ((int) (x + w) > screen->w)
return;
if ((int) (y + h) > screen->h)
return;
/* Fill the rectangle */
rect.x = (Sint16) x;
rect.y = (Sint16) y;
rect.w = (Uint16) w;
rect.h = (Uint16) h;
SDL_UpdateRects(screen, 1, &rect);
}
}
void
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
{
int i;
643
644
645
646
if (screen == SDL_ShadowSurface) {
for (i = 0; i < numrects; ++i) {
SDL_LowerBlit(SDL_ShadowSurface, &rects[i], SDL_VideoSurface,
&rects[i]);
647
648
649
}
/* Fall through to video surface update */
650
screen = SDL_VideoSurface;
651
}
652
653
654
655
656
if (screen == SDL_VideoSurface) {
for (i = 0; i < numrects; ++i) {
SDL_RenderCopy(SDL_VideoTexture, &rects[i], &rects[i],
SDL_TextureBlendMode_None,
SDL_TextureScaleMode_None);
657
}
658
SDL_RenderPresent();
659
660
661
}
}
662
void
663
SDL_WM_SetCaption(const char *title, const char *icon)
664
665
{
if (wm_title) {
666
SDL_free(wm_title);
667
} else {
668
wm_title = SDL_strdup(title);
669
}
670
SDL_SetWindowTitle(SDL_VideoWindow, wm_title);
671
672
673
}
void
674
SDL_WM_GetCaption(char **title, char **icon)
675
676
677
678
679
680
681
682
683
684
{
if (title) {
*title = wm_title;
}
if (icon) {
*icon = "";
}
}
void
685
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
686
687
688
689
690
{
/* FIXME */
}
int
691
SDL_WM_IconifyWindow(void)
692
{
693
SDL_MinimizeWindow(SDL_VideoWindow);
694
return 0;
695
696
697
}
int
698
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
699
{
700
701
702
703
704
705
706
707
708
709
710
711
if (SDL_GetWindowFlags(SDL_VideoWindow) & SDL_WINDOW_FULLSCREEN) {
if (SDL_SetWindowFullscreen(SDL_VideoWindow, 0) < 0) {
return 0;
}
SDL_PublicSurface->flags &= ~SDL_FULLSCREEN;
} else {
if (SDL_SetWindowFullscreen(SDL_VideoWindow, 1) < 0) {
return 0;
}
SDL_PublicSurface->flags |= SDL_FULLSCREEN;
}
return 1;
712
713
714
}
SDL_GrabMode
715
SDL_WM_GrabInput(SDL_GrabMode mode)
716
717
{
if (mode != SDL_GRAB_QUERY) {
718
SDL_SetWindowGrab(SDL_VideoWindow, mode);
719
}
720
return (SDL_GrabMode) SDL_GetWindowGrab(SDL_VideoWindow);
721
722
}
723
724
725
726
727
728
void
SDL_WarpMouse(Uint16 x, Uint16 y)
{
SDL_WarpMouseInWindow(SDL_VideoWindow, x, y);
}
729
Uint8
730
SDL_GetAppState(void)
731
732
733
734
{
Uint8 state = 0;
Uint32 flags = 0;
735
flags = SDL_GetWindowFlags(SDL_VideoWindow);
736
737
738
if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
state |= SDL_APPACTIVE;
}
739
if (flags & SDL_WINDOW_INPUT_FOCUS) {
740
741
742
743
744
745
746
747
748
state |= SDL_APPINPUTFOCUS;
}
if (flags & SDL_WINDOW_MOUSE_FOCUS) {
state |= SDL_APPMOUSEFOCUS;
}
return state;
}
const SDL_version *
749
SDL_Linked_Version(void)
750
751
{
static SDL_version version;
752
SDL_VERSION(&version);
753
754
755
756
return &version;
}
int
757
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
758
int firstcolor, int ncolors)
759
{
760
return SDL_SetColors(surface, colors, firstcolor, ncolors);
761
762
}
763
int
764
765
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
int ncolors)
766
{
767
768
769
770
771
if (SDL_SetPaletteColors
(surface->format->palette, colors, firstcolor, ncolors) == 0) {
return 1;
} else {
return 0;
772
773
774
}
}
775
int
776
SDL_GetWMInfo(SDL_SysWMinfo * info)
777
{
778
return SDL_GetWindowWMInfo(SDL_VideoWindow, info);
779
780
}
781
#if 0
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
void
SDL_MoveCursor(int x, int y)
{
SDL_VideoDevice *_this = SDL_GetVideoDevice();
/* Erase and update the current mouse position */
if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
/* Erase and redraw mouse cursor in new position */
SDL_LockCursor();
SDL_EraseCursor(SDL_VideoSurface);
SDL_cursor->area.x = (x - SDL_cursor->hot_x);
SDL_cursor->area.y = (y - SDL_cursor->hot_y);
SDL_DrawCursor(SDL_VideoSurface);
SDL_UnlockCursor();
} else if (_this->MoveWMCursor) {
_this->MoveWMCursor(_this, x, y);
}
}
/* Keep track of the current cursor colors */
static int palette_changed = 1;
static Uint8 pixels8[2];
void
SDL_CursorPaletteChanged(void)
{
palette_changed = 1;
}
void
SDL_MouseRect(SDL_Rect * area)
{
SDL_VideoDevice *_this = SDL_GetVideoDevice();
int clip_diff;
*area = SDL_cursor->area;
if (area->x < 0) {
area->w += area->x;
area->x = 0;
}
if (area->y < 0) {
area->h += area->y;
area->y = 0;
}
clip_diff = (area->x + area->w) - SDL_VideoSurface->w;
if (clip_diff > 0) {
area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
}
clip_diff = (area->y + area->h) - SDL_VideoSurface->h;
if (clip_diff > 0) {
area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
}
}
static void
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
{
const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
int i, w, h;
Uint8 *data, datab;
Uint8 *mask, maskb;
data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
switch (screen->format->BytesPerPixel) {
case 1:
{
Uint8 *dst;
int dstskip;
if (palette_changed) {
pixels8[0] =
(Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
palette_changed = 0;
}
dst = (Uint8 *) screen->pixels +
(SDL_cursor->area.y + area->y) * screen->pitch +
SDL_cursor->area.x;
dstskip = screen->pitch - area->w;
for (h = area->h; h; h--) {
for (w = area->w / 8; w; w--) {
maskb = *mask++;
datab = *data++;
for (i = 0; i < 8; ++i) {
if (maskb & 0x80) {
*dst = pixels8[datab >> 7];
}
maskb <<= 1;
datab <<= 1;
dst++;
}
}
dst += dstskip;
}
}
break;
case 2:
{
Uint16 *dst;
int dstskip;
dst = (Uint16 *) screen->pixels +
(SDL_cursor->area.y + area->y) * screen->pitch / 2 +
SDL_cursor->area.x;
dstskip = (screen->pitch / 2) - area->w;
for (h = area->h; h; h--) {
for (w = area->w / 8; w; w--) {
maskb = *mask++;
datab = *data++;
for (i = 0; i < 8; ++i) {
if (maskb & 0x80) {
*dst = (Uint16) pixels[datab >> 7];
}
maskb <<= 1;
datab <<= 1;
dst++;
}
}
dst += dstskip;
}
}
break;
case 3:
{
Uint8 *dst;
int dstskip;
dst = (Uint8 *) screen->pixels +
(SDL_cursor->area.y + area->y) * screen->pitch +
SDL_cursor->area.x * 3;
dstskip = screen->pitch - area->w * 3;
for (h = area->h; h; h--) {
for (w = area->w / 8; w; w--) {
maskb = *mask++;
datab = *data++;
for (i = 0; i < 8; ++i) {
if (maskb & 0x80) {
SDL_memset(dst, pixels[datab >> 7], 3);
}
maskb <<= 1;
datab <<= 1;
dst += 3;
}
}
dst += dstskip;
}
}
break;
case 4:
{
Uint32 *dst;
int dstskip;
dst = (Uint32 *) screen->pixels +
(SDL_cursor->area.y + area->y) * screen->pitch / 4 +
SDL_cursor->area.x;
dstskip = (screen->pitch / 4) - area->w;
for (h = area->h; h; h--) {
for (w = area->w / 8; w; w--) {
maskb = *mask++;
datab = *data++;
for (i = 0; i < 8; ++i) {
if (maskb & 0x80) {
*dst = pixels[datab >> 7];
}
maskb <<= 1;
datab <<= 1;
dst++;
}
}
dst += dstskip;
}
}
break;
}
}
static void
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
{
const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
int h;
int x, minx, maxx;
Uint8 *data, datab = 0;
Uint8 *mask, maskb = 0;
Uint8 *dst;
int dstbpp, dstskip;
data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
dstbpp = screen->format->BytesPerPixel;
dst = (Uint8 *) screen->pixels +
(SDL_cursor->area.y + area->y) * screen->pitch +
SDL_cursor->area.x * dstbpp;
dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
minx = area->x;
maxx = area->x + area->w;
if (screen->format->BytesPerPixel == 1) {
if (palette_changed) {
pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
palette_changed = 0;
}
for (h = area->h; h; h--) {
for (x = 0; x < SDL_cursor->area.w; ++x) {
if ((x % 8) == 0) {
maskb = *mask++;
datab = *data++;
}