This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_surface.c
799 lines (697 loc) · 20.1 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
#include "SDL_config.h"
23
24
#include "SDL_video.h"
25
#include "SDL_compat.h"
26
27
28
29
30
31
#include "SDL_sysvideo.h"
#include "SDL_blit.h"
#include "SDL_RLEaccel_c.h"
#include "SDL_pixels_c.h"
#include "SDL_leaks.h"
32
33
34
35
36
/* Public routines */
/*
* Create an empty RGB surface of the appropriate depth
*/
37
38
39
40
SDL_Surface *
SDL_CreateRGBSurface(Uint32 flags,
int width, int height, int depth,
Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
41
{
42
43
44
SDL_Surface *surface;
/* Allocate the surface */
45
surface = (SDL_Surface *) SDL_calloc(1, sizeof(*surface));
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
if (surface == NULL) {
SDL_OutOfMemory();
return NULL;
}
surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask);
if (!surface->format) {
SDL_FreeSurface(surface);
return NULL;
}
surface->w = width;
surface->h = height;
surface->pitch = SDL_CalculatePitch(surface);
SDL_SetClipRect(surface, NULL);
if (surface->format->BitsPerPixel <= 8) {
SDL_Palette *palette =
SDL_AllocPalette((1 << surface->format->BitsPerPixel));
if (!palette) {
SDL_FreeSurface(surface);
return NULL;
}
if (Rmask || Bmask || Gmask) {
const SDL_PixelFormat *format = surface->format;
/* create palette according to masks */
int i;
int Rm = 0, Gm = 0, Bm = 0;
int Rw = 0, Gw = 0, Bw = 0;
if (Rmask) {
Rw = 8 - format->Rloss;
for (i = format->Rloss; i > 0; i -= Rw)
Rm |= 1 << i;
}
if (Gmask) {
Gw = 8 - format->Gloss;
for (i = format->Gloss; i > 0; i -= Gw)
Gm |= 1 << i;
}
if (Bmask) {
Bw = 8 - format->Bloss;
for (i = format->Bloss; i > 0; i -= Bw)
Bm |= 1 << i;
}
for (i = 0; i < palette->ncolors; ++i) {
int r, g, b;
r = (i & Rmask) >> format->Rshift;
r = (r << format->Rloss) | ((r * Rm) >> Rw);
palette->colors[i].r = r;
g = (i & Gmask) >> format->Gshift;
g = (g << format->Gloss) | ((g * Gm) >> Gw);
palette->colors[i].g = g;
b = (i & Bmask) >> format->Bshift;
b = (b << format->Bloss) | ((b * Bm) >> Bw);
palette->colors[i].b = b;
}
} else if (palette->ncolors == 2) {
/* Create a black and white bitmap palette */
palette->colors[0].r = 0xFF;
palette->colors[0].g = 0xFF;
palette->colors[0].b = 0xFF;
palette->colors[1].r = 0x00;
palette->colors[1].g = 0x00;
palette->colors[1].b = 0x00;
}
SDL_SetSurfacePalette(surface, palette);
SDL_FreePalette(palette);
}
/* Get the pixels */
if (surface->w && surface->h) {
surface->pixels = SDL_malloc(surface->h * surface->pitch);
if (!surface->pixels) {
SDL_FreeSurface(surface);
SDL_OutOfMemory();
return NULL;
}
/* This is important for bitmaps */
SDL_memset(surface->pixels, 0, surface->h * surface->pitch);
}
/* Allocate an empty mapping */
surface->map = SDL_AllocBlitMap();
if (!surface->map) {
SDL_FreeSurface(surface);
return NULL;
}
SDL_FormatChanged(surface);
138
139
140
141
142
/* By default surface with an alpha mask are set up for blending */
if (Amask) {
SDL_SetSurfaceBlendMode(surface, SDL_TEXTUREBLENDMODE_BLEND);
}
143
144
/* The surface is ready to go */
surface->refcount = 1;
145
#ifdef CHECK_LEAKS
146
++surfaces_allocated;
147
#endif
148
return surface;
149
}
150
151
152
153
/*
* Create an RGB surface from an existing memory buffer
*/
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
SDL_Surface *
SDL_CreateRGBSurfaceFrom(void *pixels,
int width, int height, int depth, int pitch,
Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
Uint32 Amask)
{
SDL_Surface *surface;
surface =
SDL_CreateRGBSurface(0, 0, 0, depth, Rmask, Gmask, Bmask, Amask);
if (surface != NULL) {
surface->flags |= SDL_PREALLOC;
surface->pixels = pixels;
surface->w = width;
surface->h = height;
surface->pitch = pitch;
SDL_SetClipRect(surface, NULL);
}
return surface;
}
static int
SDL_SurfacePaletteChanged(void *userdata, SDL_Palette * palette)
{
SDL_Surface *surface = (SDL_Surface *) userdata;
SDL_FormatChanged(surface);
return 0;
}
int
SDL_SetSurfacePalette(SDL_Surface * surface, SDL_Palette * palette)
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
if (!surface || !surface->format) {
SDL_SetError("SDL_SetSurfacePalette() passed a NULL surface");
return -1;
}
if (palette && palette->ncolors != (1 << surface->format->BitsPerPixel)) {
SDL_SetError
("SDL_SetSurfacePalette() passed a palette that doesn't match the surface format");
return -1;
}
if (surface->format->palette == palette) {
return 0;
}
if (surface->format->palette) {
SDL_DelPaletteWatch(surface->format->palette,
SDL_SurfacePaletteChanged, surface);
}
surface->format->palette = palette;
if (surface->format->palette) {
SDL_AddPaletteWatch(surface->format->palette,
SDL_SurfacePaletteChanged, surface);
}
return 0;
215
}
216
217
218
int
SDL_SetSurfaceRLE(SDL_Surface * surface, int flag)
219
{
220
int flags;
221
222
223
224
225
if (!surface) {
return -1;
}
226
flags = surface->map->info.flags;
227
if (flag) {
228
surface->map->info.flags |= SDL_COPY_RLE_DESIRED;
229
} else {
230
surface->map->info.flags &= ~SDL_COPY_RLE_DESIRED;
231
}
232
if (surface->map->info.flags != flags) {
233
SDL_InvalidateMap(surface->map);
234
}
235
236
return 0;
}
237
238
239
int
SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key)
240
241
242
243
244
{
int flags;
if (!surface) {
return -1;
245
246
}
247
248
if (flag & SDL_RLEACCEL) {
SDL_SetSurfaceRLE(surface, 1);
249
250
}
251
flags = surface->map->info.flags;
252
if (flag) {
253
254
surface->map->info.flags |= SDL_COPY_COLORKEY;
surface->map->info.colorkey = key;
255
} else {
256
surface->map->info.flags &= ~SDL_COPY_COLORKEY;
257
}
258
259
260
if (surface->map->info.flags != flags) {
SDL_InvalidateMap(surface->map);
}
261
262
263
264
265
266
267
268
/* Compatibility mode */
if (surface->map->info.flags & SDL_COPY_COLORKEY) {
surface->flags |= SDL_SRCCOLORKEY;
} else {
surface->flags &= ~SDL_SRCCOLORKEY;
}
269
return 0;
270
}
271
272
273
int
SDL_SetSurfaceColorMod(SDL_Surface * surface, Uint8 r, Uint8 g, Uint8 b)
274
{
275
276
277
278
279
280
281
282
283
284
285
286
287
int flags;
if (!surface) {
return -1;
}
surface->map->info.r = r;
surface->map->info.g = g;
surface->map->info.b = b;
flags = surface->map->info.flags;
if (r != 0xFF || g != 0xFF || b != 0xFF) {
surface->map->info.flags |= SDL_COPY_MODULATE_COLOR;
288
} else {
289
290
291
292
surface->map->info.flags &= ~SDL_COPY_MODULATE_COLOR;
}
if (surface->map->info.flags != flags) {
SDL_InvalidateMap(surface->map);
293
}
294
295
296
return 0;
}
297
298
299
int
SDL_GetSurfaceColorMod(SDL_Surface * surface, Uint8 * r, Uint8 * g, Uint8 * b)
300
301
302
{
if (!surface) {
return -1;
303
304
}
305
306
307
308
309
310
311
312
313
314
315
if (r) {
*r = surface->map->info.r;
}
if (g) {
*g = surface->map->info.g;
}
if (b) {
*b = surface->map->info.b;
}
return 0;
}
316
317
318
int
SDL_SetSurfaceAlphaMod(SDL_Surface * surface, Uint8 alpha)
319
320
321
322
323
324
325
326
327
328
329
330
{
int flags;
if (!surface) {
return -1;
}
surface->map->info.a = alpha;
flags = surface->map->info.flags;
if (alpha != 0xFF) {
surface->map->info.flags |= SDL_COPY_MODULATE_ALPHA;
331
} else {
332
333
334
surface->map->info.flags &= ~SDL_COPY_MODULATE_ALPHA;
}
if (surface->map->info.flags != flags) {
335
336
SDL_InvalidateMap(surface->map);
}
337
return 0;
338
}
339
340
341
int
SDL_GetSurfaceAlphaMod(SDL_Surface * surface, Uint8 * alpha)
342
{
343
344
345
346
347
348
349
350
351
if (!surface) {
return -1;
}
if (alpha) {
*alpha = surface->map->info.a;
}
return 0;
}
352
353
354
int
SDL_SetSurfaceBlendMode(SDL_Surface * surface, int blendMode)
355
356
357
358
{
int flags, status;
if (!surface) {
359
360
return -1;
}
361
362
363
status = 0;
flags = surface->map->info.flags;
364
365
surface->map->info.flags &=
~(SDL_COPY_MASK | SDL_COPY_BLEND | SDL_COPY_ADD | SDL_COPY_MOD);
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
switch (blendMode) {
case SDL_TEXTUREBLENDMODE_NONE:
break;
case SDL_TEXTUREBLENDMODE_MASK:
surface->map->info.flags |= SDL_COPY_MASK;
break;
case SDL_TEXTUREBLENDMODE_BLEND:
surface->map->info.flags |= SDL_COPY_BLEND;
break;
case SDL_TEXTUREBLENDMODE_ADD:
surface->map->info.flags |= SDL_COPY_ADD;
break;
case SDL_TEXTUREBLENDMODE_MOD:
surface->map->info.flags |= SDL_COPY_MOD;
break;
default:
SDL_Unsupported();
status = -1;
break;
}
if (surface->map->info.flags != flags) {
SDL_InvalidateMap(surface->map);
389
}
390
391
392
393
394
395
396
397
/* Compatibility mode */
if (surface->map->info.flags & SDL_COPY_BLEND) {
surface->flags |= SDL_SRCALPHA;
} else {
surface->flags &= ~SDL_SRCALPHA;
}
398
399
400
return status;
}
401
402
int
SDL_GetSurfaceBlendMode(SDL_Surface * surface, int *blendMode)
403
404
405
{
if (!surface) {
return -1;
406
}
407
408
409
if (!blendMode) {
return 0;
410
}
411
412
413
414
switch (surface->map->info.
flags & (SDL_COPY_MASK | SDL_COPY_BLEND | SDL_COPY_ADD |
SDL_COPY_MOD)) {
415
case SDL_COPY_MASK:
416
*blendMode = SDL_TEXTUREBLENDMODE_MASK;
417
418
break;
case SDL_COPY_BLEND:
419
*blendMode = SDL_TEXTUREBLENDMODE_BLEND;
420
421
break;
case SDL_COPY_ADD:
422
*blendMode = SDL_TEXTUREBLENDMODE_ADD;
423
424
break;
case SDL_COPY_MOD:
425
*blendMode = SDL_TEXTUREBLENDMODE_MOD;
426
427
break;
default:
428
*blendMode = SDL_TEXTUREBLENDMODE_NONE;
429
break;
430
}
431
432
433
return 0;
}
434
435
int
SDL_SetSurfaceScaleMode(SDL_Surface * surface, int scaleMode)
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
{
int flags, status;
if (!surface) {
return -1;
}
status = 0;
flags = surface->map->info.flags;
surface->map->info.flags &= ~(SDL_COPY_NEAREST);
switch (scaleMode) {
case SDL_TEXTURESCALEMODE_NONE:
break;
case SDL_TEXTURESCALEMODE_FAST:
surface->map->info.flags |= SDL_COPY_NEAREST;
break;
case SDL_TEXTURESCALEMODE_SLOW:
case SDL_TEXTURESCALEMODE_BEST:
SDL_Unsupported();
surface->map->info.flags |= SDL_COPY_NEAREST;
status = -1;
break;
default:
SDL_Unsupported();
status = -1;
break;
}
if (surface->map->info.flags != flags) {
SDL_InvalidateMap(surface->map);
}
return status;
}
470
471
int
SDL_GetSurfaceScaleMode(SDL_Surface * surface, int *scaleMode)
472
473
474
475
476
477
478
479
480
{
if (!surface) {
return -1;
}
if (!scaleMode) {
return 0;
}
481
482
483
switch (surface->map->info.flags & (SDL_COPY_NEAREST)) {
case SDL_COPY_NEAREST:
*scaleMode = SDL_TEXTURESCALEMODE_FAST;
484
485
break;
default:
486
*scaleMode = SDL_TEXTURESCALEMODE_NONE;
487
break;
488
489
}
return 0;
490
}
491
492
493
SDL_bool
SDL_SetClipRect(SDL_Surface * surface, const SDL_Rect * rect)
494
{
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
SDL_Rect full_rect;
/* Don't do anything if there's no surface to act on */
if (!surface) {
return SDL_FALSE;
}
/* Set up the full surface rectangle */
full_rect.x = 0;
full_rect.y = 0;
full_rect.w = surface->w;
full_rect.h = surface->h;
/* Set the clipping rectangle */
if (!rect) {
surface->clip_rect = full_rect;
return 1;
}
return SDL_IntersectRect(rect, &full_rect, &surface->clip_rect);
514
}
515
516
517
void
SDL_GetClipRect(SDL_Surface * surface, SDL_Rect * rect)
518
{
519
520
521
if (surface && rect) {
*rect = surface->clip_rect;
}
522
}
523
524
525
526
527
528
529
530
531
532
533
534
/*
* Set up a blit between two surfaces -- split into three parts:
* The upper part, SDL_UpperBlit(), performs clipping and rectangle
* verification. The lower part is a pointer to a low level
* accelerated blitting function.
*
* These parts are separated out and each used internally by this
* library in the optimimum places. They are exported so that if
* you know exactly what you are doing, you can optimize your code
* by calling the one(s) you need.
*/
535
536
537
int
SDL_LowerBlit(SDL_Surface * src, SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect)
538
{
539
540
541
542
543
544
545
/* Check to make sure the blit mapping is valid */
if ((src->map->dst != dst) ||
(src->map->dst->format_version != src->map->format_version)) {
if (SDL_MapSurface(src, dst) < 0) {
return (-1);
}
}
546
return (src->map->blit(src, srcrect, dst, dstrect));
547
548
549
}
550
551
552
int
SDL_UpperBlit(SDL_Surface * src, SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect)
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
SDL_Rect fulldst;
int srcx, srcy, w, h;
/* Make sure the surfaces aren't locked */
if (!src || !dst) {
SDL_SetError("SDL_UpperBlit: passed a NULL surface");
return (-1);
}
if (src->locked || dst->locked) {
SDL_SetError("Surfaces must not be locked during blit");
return (-1);
}
/* If the destination rectangle is NULL, use the entire dest surface */
if (dstrect == NULL) {
fulldst.x = fulldst.y = 0;
dstrect = &fulldst;
}
/* clip the source rectangle to the source surface */
if (srcrect) {
int maxw, maxh;
srcx = srcrect->x;
w = srcrect->w;
if (srcx < 0) {
w += srcx;
dstrect->x -= srcx;
srcx = 0;
}
maxw = src->w - srcx;
if (maxw < w)
w = maxw;
srcy = srcrect->y;
h = srcrect->h;
if (srcy < 0) {
h += srcy;
dstrect->y -= srcy;
srcy = 0;
}
maxh = src->h - srcy;
if (maxh < h)
h = maxh;
} else {
srcx = srcy = 0;
w = src->w;
h = src->h;
}
/* clip the destination rectangle against the clip rectangle */
{
SDL_Rect *clip = &dst->clip_rect;
int dx, dy;
dx = clip->x - dstrect->x;
if (dx > 0) {
w -= dx;
dstrect->x += dx;
srcx += dx;
}
dx = dstrect->x + w - clip->x - clip->w;
if (dx > 0)
w -= dx;
dy = clip->y - dstrect->y;
if (dy > 0) {
h -= dy;
dstrect->y += dy;
srcy += dy;
}
dy = dstrect->y + h - clip->y - clip->h;
if (dy > 0)
h -= dy;
}
if (w > 0 && h > 0) {
SDL_Rect sr;
sr.x = srcx;
sr.y = srcy;
sr.w = dstrect->w = w;
sr.h = dstrect->h = h;
return SDL_LowerBlit(src, &sr, dst, dstrect);
}
dstrect->w = dstrect->h = 0;
return 0;
641
642
643
644
645
}
/*
* Lock a surface to directly access the pixels
*/
646
647
int
SDL_LockSurface(SDL_Surface * surface)
648
{
649
650
651
652
653
654
655
656
657
658
659
660
661
if (!surface->locked) {
/* Perform the lock */
if (surface->flags & SDL_RLEACCEL) {
SDL_UnRLESurface(surface, 1);
surface->flags |= SDL_RLEACCEL; /* save accel'd state */
}
}
/* Increment the surface lock count, for recursive locks */
++surface->locked;
/* Ready to go.. */
return (0);
662
}
663
664
665
666
/*
* Unlock a previously locked surface
*/
667
668
void
SDL_UnlockSurface(SDL_Surface * surface)
669
{
670
671
672
673
674
675
676
677
678
679
/* Only perform an unlock if we are locked */
if (!surface->locked || (--surface->locked > 0)) {
return;
}
/* Update RLE encoded surface with new data */
if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
surface->flags &= ~SDL_RLEACCEL; /* stop lying */
SDL_RLESurface(surface);
}
680
681
682
683
684
}
/*
* Convert a surface into the specified pixel format.
*/
685
686
687
SDL_Surface *
SDL_ConvertSurface(SDL_Surface * surface,
SDL_PixelFormat * format, Uint32 flags)
688
{
689
SDL_Surface *convert;
690
Uint32 copy_flags;
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
SDL_Rect bounds;
/* Check for empty destination palette! (results in empty image) */
if (format->palette != NULL) {
int i;
for (i = 0; i < format->palette->ncolors; ++i) {
if ((format->palette->colors[i].r != 0xFF) ||
(format->palette->colors[i].g != 0xFF) ||
(format->palette->colors[i].b != 0xFF))
break;
}
if (i == format->palette->ncolors) {
SDL_SetError("Empty destination palette");
return (NULL);
}
}
/* Create a new surface with the desired format */
709
convert = SDL_CreateRGBSurface(0, surface->w, surface->h,
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
format->BitsPerPixel, format->Rmask,
format->Gmask, format->Bmask,
format->Amask);
if (convert == NULL) {
return (NULL);
}
/* Copy the palette if any */
if (format->palette && convert->format->palette) {
SDL_memcpy(convert->format->palette->colors,
format->palette->colors,
format->palette->ncolors * sizeof(SDL_Color));
convert->format->palette->ncolors = format->palette->ncolors;
}
725
726
727
/* Save the original copy flags */
copy_flags = surface->map->info.flags;
surface->map->info.flags = 0;
728
729
730
731
732
733
734
735
736
/* Copy over the image data */
bounds.x = 0;
bounds.y = 0;
bounds.w = surface->w;
bounds.h = surface->h;
SDL_LowerBlit(surface, &bounds, convert, &bounds);
/* Clean up the original surface, and update converted surface */
737
738
739
740
SDL_SetClipRect(convert, &surface->clip_rect);
if (copy_flags & SDL_COPY_COLORKEY) {
Uint8 keyR, keyG, keyB, keyA;
741
742
SDL_GetRGBA(surface->map->info.colorkey, surface->format, &keyR,
&keyG, &keyB, &keyA);
743
744
745
746
747
748
749
750
751
752
753
754
755
756
SDL_SetColorKey(convert, 1,
SDL_MapRGBA(convert->format, keyR, keyG, keyB, keyA));
}
convert->map->info.r = surface->map->info.r;
convert->map->info.g = surface->map->info.g;
convert->map->info.b = surface->map->info.b;
convert->map->info.a = surface->map->info.a;
convert->map->info.flags = copy_flags;
surface->map->info.flags = copy_flags;
/* Enable alpha blending by default if the new surface has an
* alpha channel or alpha modulation */
if (format->Amask || (copy_flags & SDL_COPY_MODULATE_ALPHA)) {
SDL_SetSurfaceBlendMode(convert, SDL_TEXTUREBLENDMODE_BLEND);
757
758
759
760
}
/* We're ready to go! */
return (convert);
761
762
763
764
765
}
/*
* Free a surface created by the above function.
*/
766
767
void
SDL_FreeSurface(SDL_Surface * surface)
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
if (surface == NULL) {
return;
}
if (--surface->refcount > 0) {
return;
}
while (surface->locked > 0) {
SDL_UnlockSurface(surface);
}
if (surface->flags & SDL_RLEACCEL) {
SDL_UnRLESurface(surface, 0);
}
if (surface->format) {
SDL_SetSurfacePalette(surface, NULL);
SDL_FreeFormat(surface->format);
surface->format = NULL;
}
if (surface->map != NULL) {
SDL_FreeBlitMap(surface->map);
surface->map = NULL;
}
if (surface->pixels && ((surface->flags & SDL_PREALLOC) != SDL_PREALLOC)) {
SDL_free(surface->pixels);
}
SDL_free(surface);
794
#ifdef CHECK_LEAKS
795
--surfaces_allocated;
796
797
#endif
}
798
799
/* vi: set ts=4 sw=4 expandtab: */