/
SDL_ph_image.c
1117 lines (953 loc) · 28.2 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2004 Sam Lantinga
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
20
slouken@libsdl.org
21
22
23
24
25
26
27
28
29
30
31
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
#include <stdlib.h>
#include <Ph.h>
#include <photon/Pg.h>
32
#include "SDL.h"
33
34
#include "SDL_error.h"
#include "SDL_endian.h"
35
36
#include "SDL_video.h"
#include "SDL_pixels_c.h"
37
#include "SDL_ph_image_c.h"
38
#include "SDL_ph_modes_c.h"
39
40
41
int ph_SetupImage(_THIS, SDL_Surface *screen)
{
42
PgColor_t* palette=NULL;
43
44
45
46
int type=0;
int bpp;
bpp=screen->format->BitsPerPixel;
47
48
/* Determine image type */
49
switch(bpp)
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
{
case 8:{
type = Pg_IMAGE_PALETTE_BYTE;
}
break;
case 15:{
type = Pg_IMAGE_DIRECT_555;
}
break;
case 16:{
type = Pg_IMAGE_DIRECT_565;
}
break;
case 24:{
type = Pg_IMAGE_DIRECT_888;
}
break;
case 32:{
type = Pg_IMAGE_DIRECT_8888;
}
break;
default:{
72
SDL_SetError("ph_SetupImage(): unsupported bpp=%d !\n", bpp);
73
74
75
76
return -1;
}
break;
}
77
78
/* palette emulation code */
79
if ((bpp==8) && (desktoppal==SDLPH_PAL_EMULATE))
80
81
82
{
/* creating image palette */
palette=malloc(_Pg_MAX_PALETTE*sizeof(PgColor_t));
83
84
85
86
87
if (palette==NULL)
{
SDL_SetError("ph_SetupImage(): can't allocate memory for palette !\n");
return -1;
}
88
89
90
91
92
PgGetPalette(palette);
/* using shared memory for speed (set last param to 1) */
if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, palette, _Pg_MAX_PALETTE, 1)) == NULL)
{
93
94
SDL_SetError("ph_SetupImage(): PhCreateImage() failed for bpp=8 !\n");
free(palette);
95
96
97
98
return -1;
}
}
else
99
{
100
101
102
/* using shared memory for speed (set last param to 1) */
if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, NULL, 0, 1)) == NULL)
{
103
SDL_SetError("ph_SetupImage(): PhCreateImage() failed for bpp=%d !\n", bpp);
104
105
return -1;
}
106
}
107
108
screen->pixels = SDL_Image->image;
109
screen->pitch = SDL_Image->bpl;
110
111
this->UpdateRects = ph_NormalUpdate;
112
113
return 0;
114
115
}
116
int ph_SetupOCImage(_THIS, SDL_Surface *screen)
117
{
118
int type = 0;
119
int bpp;
120
121
OCImage.flags = screen->flags;
122
123
bpp=screen->format->BitsPerPixel;
124
125
/* Determine image type */
126
switch(bpp)
127
128
129
130
131
132
133
{
case 8: {
type = Pg_IMAGE_PALETTE_BYTE;
}
break;
case 15:{
type = Pg_IMAGE_DIRECT_555;
134
135
}
break;
136
137
138
139
140
141
142
143
144
145
146
147
148
case 16:{
type = Pg_IMAGE_DIRECT_565;
}
break;
case 24:{
type = Pg_IMAGE_DIRECT_888;
}
break;
case 32:{
type = Pg_IMAGE_DIRECT_8888;
}
break;
default:{
149
SDL_SetError("ph_SetupOCImage(): unsupported bpp=%d !\n", bpp);
150
151
152
153
return -1;
}
break;
}
154
155
/* Currently offscreen contexts with the same bit depth as display bpp only can be created */
156
157
158
159
OCImage.offscreen_context = PdCreateOffscreenContext(0, screen->w, screen->h, Pg_OSC_MEM_PAGE_ALIGN);
if (OCImage.offscreen_context == NULL)
{
160
SDL_SetError("ph_SetupOCImage(): PdCreateOffscreenContext() function failed !\n");
161
162
163
return -1;
}
164
screen->pitch = OCImage.offscreen_context->pitch;
165
166
OCImage.dc_ptr = (unsigned char *)PdGetOffscreenContextPtr(OCImage.offscreen_context);
167
168
if (OCImage.dc_ptr == NULL)
169
{
170
171
SDL_SetError("ph_SetupOCImage(): PdGetOffscreenContextPtr function failed !\n");
PhDCRelease(OCImage.offscreen_context);
172
173
174
return -1;
}
175
OCImage.FrameData0 = OCImage.dc_ptr;
176
177
178
179
180
OCImage.CurrentFrameData = OCImage.FrameData0;
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
181
screen->pixels = OCImage.CurrentFrameData;
182
183
184
185
this->UpdateRects = ph_OCUpdate;
return 0;
186
187
}
188
189
190
191
int ph_SetupFullScreenImage(_THIS, SDL_Surface* screen)
{
OCImage.flags = screen->flags;
192
193
/* Begin direct mode */
if (!ph_EnterFullScreen(this, screen))
194
195
196
197
{
return -1;
}
198
199
/* store palette for fullscreen */
if ((screen->format->BitsPerPixel==8) && (desktopbpp!=8))
200
{
201
202
203
PgGetPalette(savedpal);
PgGetPalette(syspalph);
}
204
205
OCImage.offscreen_context = PdCreateOffscreenContext(0, 0, 0, Pg_OSC_MAIN_DISPLAY | Pg_OSC_MEM_PAGE_ALIGN | Pg_OSC_CRTC_SAFE);
206
207
208
209
210
211
212
213
if (OCImage.offscreen_context == NULL)
{
SDL_SetError("ph_SetupFullScreenImage(): PdCreateOffscreenContext() function failed !\n");
return -1;
}
if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF)
{
214
OCImage.offscreen_backcontext = PdDupOffscreenContext(OCImage.offscreen_context, Pg_OSC_MEM_PAGE_ALIGN | Pg_OSC_CRTC_SAFE);
215
if (OCImage.offscreen_backcontext == NULL)
216
{
217
218
SDL_SetError("ph_SetupFullScreenImage(): PdCreateOffscreenContext(back) function failed !\n");
return -1;
219
220
221
}
}
222
223
OCImage.FrameData0 = (unsigned char *)PdGetOffscreenContextPtr(OCImage.offscreen_context);
if (OCImage.FrameData0 == NULL)
224
{
225
226
SDL_SetError("ph_SetupFullScreenImage(): PdGetOffscreenContextPtr() function failed !\n");
ph_DestroyImage(this, screen);
227
228
229
return -1;
}
230
231
232
233
234
235
236
237
238
239
if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF)
{
OCImage.FrameData1 = (unsigned char *)PdGetOffscreenContextPtr(OCImage.offscreen_backcontext);
if (OCImage.FrameData1 == NULL)
{
SDL_SetError("ph_SetupFullScreenImage(back): PdGetOffscreenContextPtr() function failed !\n");
ph_DestroyImage(this, screen);
return -1;
}
}
240
241
/* wait for the hardware */
242
PgFlush();
243
PgWaitHWIdle();
244
245
246
if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF)
{
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pitch = OCImage.offscreen_context->pitch;
screen->pixels = OCImage.FrameData0;
/* emulate 640x400 videomode */
if (videomode_emulatemode==1)
{
int i;
for (i=0; i<40; i++)
{
memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
for (i=440; i<480; i++)
{
memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
screen->pixels+=screen->pitch*40;
}
PgSwapDisplay(OCImage.offscreen_backcontext, 0);
268
269
270
271
272
273
274
}
else
{
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pitch = OCImage.offscreen_context->pitch;
screen->pixels = OCImage.FrameData0;
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
/* emulate 640x400 videomode */
if (videomode_emulatemode==1)
{
int i;
for (i=0; i<40; i++)
{
memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
for (i=440; i<480; i++)
{
memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
screen->pixels+=screen->pitch*40;
}
291
}
292
293
this->UpdateRects = ph_OCDCUpdate;
294
295
/* wait for the hardware */
296
PgFlush();
297
PgWaitHWIdle();
298
299
300
301
return 0;
}
302
303
304
#ifdef HAVE_OPENGL
static int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
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
PhDim_t dim;
uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
int exposepost=0;
int OGLargc;
dim.w=width;
dim.h=height;
if ((oglctx!=NULL) && (oglflags==flags) && (oglbpp==bpp))
{
PdOpenGLContextResize(oglctx, &dim);
PhDCSetCurrent(oglctx);
return 0;
}
else
{
if (oglctx!=NULL)
{
PhDCSetCurrent(NULL);
PhDCRelease(oglctx);
oglctx=NULL;
exposepost=1;
}
}
OGLargc=0;
if (this->gl_config.depth_size)
{
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DEPTH_BITS;
OGLAttrib[OGLargc++]=this->gl_config.depth_size;
}
if (this->gl_config.stencil_size)
{
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_STENCIL_BITS;
OGLAttrib[OGLargc++]=this->gl_config.stencil_size;
}
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FORCE_SW;
if (flags & SDL_FULLSCREEN)
{
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN;
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DIRECT;
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_BEST;
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_CENTER;
}
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_NONE;
if (this->gl_config.double_buffer)
{
oglctx=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);
}
else
{
oglctx=PdCreateOpenGLContext(1, &dim, 0, OGLAttrib);
}
if (oglctx==NULL)
{
SDL_SetError("ph_SetupOpenGLContext(): cannot create OpenGL context !\n");
return (-1);
}
PhDCSetCurrent(oglctx);
PtFlush();
oglflags=flags;
oglbpp=bpp;
if (exposepost!=0)
{
/* OpenGL context has been recreated, so report about this fact */
SDL_PrivateExpose();
}
return 0;
}
int ph_SetupOpenGLImage(_THIS, SDL_Surface* screen)
{
this->UpdateRects = ph_OpenGLUpdate;
screen->pixels=NULL;
screen->pitch=NULL;
if (ph_SetupOpenGLContext(this, screen->w, screen->h, screen->format->BitsPerPixel, screen->flags)!=0)
{
screen->flags &= ~SDL_OPENGL;
return -1;
}
return 0;
}
#endif /* HAVE_OPENGL */
void ph_DestroyImage(_THIS, SDL_Surface* screen)
{
#ifdef HAVE_OPENGL
if ((screen->flags & SDL_OPENGL)==SDL_OPENGL)
{
if (oglctx)
{
PhDCSetCurrent(NULL);
PhDCRelease(oglctx);
oglctx=NULL;
oglflags=0;
oglbpp=0;
}
return;
}
#endif /* HAVE_OPENGL */
418
419
420
421
422
423
424
425
426
427
428
429
if (currently_fullscreen)
{
/* if we right now in 8bpp fullscreen we must release palette */
if ((screen->format->BitsPerPixel==8) && (desktopbpp!=8))
{
PgSetPalette(syspalph, 0, -1, 0, 0, 0);
PgSetPalette(savedpal, 0, 0, _Pg_MAX_PALETTE, Pg_PALSET_GLOBAL | Pg_PALSET_FORCE_EXPOSE, 0);
PgFlush();
}
ph_LeaveFullScreen(this);
}
430
431
432
433
434
if (OCImage.offscreen_context != NULL)
{
PhDCRelease(OCImage.offscreen_context);
OCImage.offscreen_context = NULL;
OCImage.FrameData0 = NULL;
435
436
437
438
439
}
if (OCImage.offscreen_backcontext != NULL)
{
PhDCRelease(OCImage.offscreen_backcontext);
OCImage.offscreen_backcontext = NULL;
440
441
OCImage.FrameData1 = NULL;
}
442
OCImage.CurrentFrameData = NULL;
443
444
445
if (SDL_Image)
{
446
447
448
449
450
/* if palette allocated, free it */
if (SDL_Image->palette)
{
free(SDL_Image->palette);
}
451
452
453
PgShmemDestroy(SDL_Image->image);
free(SDL_Image);
}
454
455
456
457
/* Must be zeroed everytime */
SDL_Image = NULL;
458
459
460
461
if (screen)
{
screen->pixels = NULL;
}
462
463
}
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
int ph_UpdateHWInfo(_THIS)
{
PgVideoModeInfo_t vmode;
PgHWCaps_t hwcaps;
/* Update video ram amount */
if (PgGetGraphicsHWCaps(&hwcaps) < 0)
{
SDL_SetError("ph_UpdateHWInfo(): GetGraphicsHWCaps() function failed !\n");
return -1;
}
this->info.video_mem=hwcaps.currently_available_video_ram/1024;
/* obtain current mode capabilities */
if (PgGetVideoModeInfo(hwcaps.current_video_mode, &vmode) < 0)
{
SDL_SetError("ph_UpdateHWInfo(): GetVideoModeInfo() function failed !\n");
return -1;
}
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
if ((vmode.mode_capabilities1 & PgVM_MODE_CAP1_OFFSCREEN) == PgVM_MODE_CAP1_OFFSCREEN)
{
/* this is a special test for drivers which tries to lie about offscreen capability */
if (hwcaps.currently_available_video_ram!=0)
{
this->info.hw_available = 1;
}
else
{
this->info.hw_available = 0;
}
}
else
{
this->info.hw_available = 0;
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_RECTANGLE) == PgVM_MODE_CAP2_RECTANGLE)
{
this->info.blit_fill = 1;
}
else
{
this->info.blit_fill = 0;
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_BITBLT) == PgVM_MODE_CAP2_BITBLT)
{
this->info.blit_hw = 1;
}
else
{
this->info.blit_hw = 0;
}
518
519
520
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_ALPHA_BLEND) == PgVM_MODE_CAP2_ALPHA_BLEND)
{
521
this->info.blit_hw_A = 1;
522
523
524
}
else
{
525
this->info.blit_hw_A = 0;
526
527
528
529
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_CHROMA) == PgVM_MODE_CAP2_CHROMA)
{
530
this->info.blit_hw_CC = 1;
531
532
533
}
else
{
534
this->info.blit_hw_CC = 0;
535
536
537
538
539
}
return 0;
}
540
int ph_SetupUpdateFunction(_THIS, SDL_Surface* screen, Uint32 flags)
541
{
542
543
int setupresult=-1;
544
545
ph_DestroyImage(this, screen);
546
547
548
#ifdef HAVE_OPENGL
if ((flags & SDL_OPENGL)==SDL_OPENGL)
{
549
setupresult=ph_SetupOpenGLImage(this, screen);
550
}
551
else
552
{
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
#endif /* HAVE_OPENGL */
if ((flags & SDL_FULLSCREEN)==SDL_FULLSCREEN)
{
setupresult=ph_SetupFullScreenImage(this, screen);
}
else
{
if ((flags & SDL_HWSURFACE)==SDL_HWSURFACE)
{
setupresult=ph_SetupOCImage(this, screen);
}
else
{
setupresult=ph_SetupImage(this, screen);
}
}
#ifdef HAVE_OPENGL
570
}
571
572
#endif /* HAVE_OPENGL */
if (setupresult!=-1)
573
{
574
ph_UpdateHWInfo(this);
575
}
576
577
return setupresult;
578
}
579
580
int ph_AllocHWSurface(_THIS, SDL_Surface* surface)
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
PgHWCaps_t hwcaps;
if (surface->hwdata!=NULL)
{
SDL_SetError("ph_AllocHWSurface(): hwdata already exists!\n");
return -1;
}
surface->hwdata=malloc(sizeof(struct private_hwdata));
memset(surface->hwdata, 0x00, sizeof(struct private_hwdata));
surface->hwdata->offscreenctx=PdCreateOffscreenContext(0, surface->w, surface->h, Pg_OSC_MEM_PAGE_ALIGN);
if (surface->hwdata->offscreenctx == NULL)
{
SDL_SetError("ph_AllocHWSurface(): PdCreateOffscreenContext() function failed !\n");
return -1;
}
surface->pixels=PdGetOffscreenContextPtr(surface->hwdata->offscreenctx);
if (surface->pixels==NULL)
{
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): PdGetOffscreenContextPtr() function failed !\n");
return -1;
}
surface->pitch=surface->hwdata->offscreenctx->pitch;
surface->flags|=SDL_HWSURFACE;
surface->flags|=SDL_PREALLOC;
#if 0 /* FIXME */
/* create simple offscreen lock */
surface->hwdata->crlockparam.flags=0;
if (PdCreateOffscreenLock(surface->hwdata->offscreenctx, &surface->hwdata->crlockparam)!=EOK)
{
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): Can't create offscreen lock !\n");
return -1;
}
#endif /* 0 */
/* Update video ram amount */
if (PgGetGraphicsHWCaps(&hwcaps) < 0)
{
PdDestroyOffscreenLock(surface->hwdata->offscreenctx);
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): GetGraphicsHWCaps() function failed !\n");
return -1;
}
this->info.video_mem=hwcaps.currently_available_video_ram/1024;
return 0;
630
631
}
632
void ph_FreeHWSurface(_THIS, SDL_Surface* surface)
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
PgHWCaps_t hwcaps;
if (surface->hwdata==NULL)
{
SDL_SetError("ph_FreeHWSurface(): no hwdata!\n");
return;
}
if (surface->hwdata->offscreenctx == NULL)
{
SDL_SetError("ph_FreeHWSurface(): no offscreen context to delete!\n");
return;
}
#if 0 /* FIXME */
/* unlock the offscreen context if it has been locked before destroy it */
if (PdIsOffscreenLocked(surface->hwdata->offscreenctx)==Pg_OSC_LOCKED)
{
PdUnlockOffscreen(surface->hwdata->offscreenctx);
}
PdDestroyOffscreenLock(surface->hwdata->offscreenctx);
#endif /* 0 */
PhDCRelease(surface->hwdata->offscreenctx);
free(surface->hwdata);
surface->hwdata=NULL;
/* Update video ram amount */
if (PgGetGraphicsHWCaps(&hwcaps) < 0)
{
SDL_SetError("ph_FreeHWSurface(): GetGraphicsHWCaps() function failed !\n");
return;
}
this->info.video_mem=hwcaps.currently_available_video_ram/1024;
670
return;
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
int ph_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
{
if ((src->hwdata==NULL) && (src != this->screen))
{
SDL_SetError("ph_CheckHWBlit(): Source surface haven't hardware specific data.\n");
src->flags&=~SDL_HWACCEL;
return -1;
}
if ((src->flags & SDL_HWSURFACE) != SDL_HWSURFACE)
{
SDL_SetError("ph_CheckHWBlit(): Source surface isn't a hardware surface.\n");
src->flags&=~SDL_HWACCEL;
return -1;
}
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY)
{
if (this->info.blit_hw_CC!=1)
{
src->flags&=~SDL_HWACCEL;
src->map->hw_blit=NULL;
return -1;
}
}
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA)
{
if (this->info.blit_hw_A!=1)
{
src->flags&=~SDL_HWACCEL;
src->map->hw_blit=NULL;
return -1;
}
}
src->flags|=SDL_HWACCEL;
src->map->hw_blit = ph_HWAccelBlit;
return 1;
}
PgColor_t ph_ExpandColor(_THIS, SDL_Surface* surface, Uint32 color)
{
Uint32 truecolor;
/* Photon API accepts true colors only during hw filling operations */
switch(surface->format->BitsPerPixel)
{
case 8:
{
if ((surface->format->palette) && (color<=surface->format->palette->ncolors))
{
truecolor=PgRGB(surface->format->palette->colors[color].r,
surface->format->palette->colors[color].g,
surface->format->palette->colors[color].b);
}
else
{
SDL_SetError("ph_ExpandColor(): Color out of range for the 8bpp mode !\n");
return 0xFFFFFFFFUL;
}
}
break;
case 15:
{
truecolor = ((color & 0x00007C00UL) << 9) | /* R */
((color & 0x000003E0UL) << 6) | /* G */
((color & 0x0000001FUL) << 3) | /* B */
((color & 0x00007000UL) << 4) | /* R compensation */
((color & 0x00000380UL) << 1) | /* G compensation */
((color & 0x0000001CUL) >> 2); /* B compensation */
}
break;
case 16:
{
truecolor = ((color & 0x0000F800UL) << 8) | /* R */
((color & 0x000007E0UL) << 5) | /* G */
((color & 0x0000001FUL) << 3) | /* B */
((color & 0x0000E000UL) << 3) | /* R compensation */
((color & 0x00000600UL) >> 1) | /* G compensation */
((color & 0x0000001CUL) >> 2); /* B compensation */
}
break;
case 24:
{
truecolor=color & 0x00FFFFFFUL;
}
break;
case 32:
{
truecolor=color;
}
break;
default:
{
SDL_SetError("ph_ExpandColor(): Unsupported depth for the hardware operations !\n");
return 0xFFFFFFFFUL;
}
}
return truecolor;
}
int ph_FillHWRect(_THIS, SDL_Surface* surface, SDL_Rect* rect, Uint32 color)
{
PgColor_t oldcolor;
Uint32 truecolor;
int ydisp=0;
783
784
785
786
787
if (this->info.blit_fill!=1)
{
return -1;
}
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
truecolor=ph_ExpandColor(this, surface, color);
if (truecolor==0xFFFFFFFFUL)
{
return -1;
}
oldcolor=PgSetFillColor(truecolor);
/* 640x400 videomode emulation */
if (videomode_emulatemode==1)
{
ydisp+=40;
}
PgDrawIRect(rect->x, rect->y+ydisp, rect->w+rect->x-1, rect->h+rect->y+ydisp-1, Pg_DRAW_FILL);
PgSetFillColor(oldcolor);
PgFlush();
PgWaitHWIdle();
return 0;
}
810
int ph_FlipHWSurface(_THIS, SDL_Surface* screen)
811
{
812
813
PhArea_t farea;
814
815
if ((screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
{
816
817
/* flush all drawing ops before blitting */
PgFlush();
818
PgWaitHWIdle();
819
820
821
822
823
824
825
826
farea.pos.x=0;
farea.pos.y=0;
farea.size.w=screen->w;
farea.size.h=screen->h;
/* emulate 640x400 videomode */
if (videomode_emulatemode==1)
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
farea.pos.y+=40;
}
PgContextBlitArea(OCImage.offscreen_context, &farea, OCImage.offscreen_backcontext, &farea);
/* flush the blitting */
PgFlush();
PgWaitHWIdle();
}
return 0;
}
int ph_LockHWSurface(_THIS, SDL_Surface* surface)
{
#if 0 /* FIXME */
int lockresult;
if (surface->hwdata == NULL)
{
return;
}
surface->hwdata->lockparam.flags=0;
surface->hwdata->lockparam.time_out=NULL;
lockresult=PdLockOffscreen(surface->hwdata->offscreenctx, &surface->hwdata->lockparam);
switch (lockresult)
{
case EOK:
break;
case Pg_OSC_LOCK_DEADLOCK:
SDL_SetError("ph_LockHWSurface(): Deadlock detected !\n");
return -1;
case Pg_OSC_LOCK_INVALID:
SDL_SetError("ph_LockHWSurface(): Lock invalid !\n");
return -1;
default:
SDL_SetError("ph_LockHWSurface(): Can't lock the surface !\n");
return -1;
}
#endif /* 0 */
return 0;
}
void ph_UnlockHWSurface(_THIS, SDL_Surface* surface)
{
#if 0 /* FIXME */
int unlockresult;
if ((surface == NULL) || (surface->hwdata == NULL))
{
return;
}
if (PdIsOffscreenLocked(surface->hwdata->offscreenctx)==Pg_OSC_LOCKED)
{
unlockresult=PdUnlockOffscreen(surface->hwdata->offscreenctx);
}
#endif /* 0 */
return;
}
int ph_HWAccelBlit(SDL_Surface* src, SDL_Rect* srcrect, SDL_Surface* dst, SDL_Rect* dstrect)
{
SDL_VideoDevice* this=current_video;
PhArea_t srcarea;
PhArea_t dstarea;
int ydisp=0;
/* 640x400 videomode emulation */
if (videomode_emulatemode==1)
{
ydisp+=40;
}
srcarea.pos.x=srcrect->x;
srcarea.pos.y=srcrect->y;
srcarea.size.w=srcrect->w;
srcarea.size.h=srcrect->h;
dstarea.pos.x=dstrect->x;
dstarea.pos.y=dstrect->y;
dstarea.size.w=dstrect->w;
dstarea.size.h=dstrect->h;
if (((src == this->screen) || (src->hwdata!=NULL)) && ((dst == this->screen) || (dst->hwdata!=NULL)))
{
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY)
{
ph_SetHWColorKey(this, src, src->format->colorkey);
PgChromaOn();
}
925
926
927
928
929
930
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA)
{
ph_SetHWAlpha(this, src, src->format->alpha);
PgAlphaOn();
}
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
if (dst == this->screen)
{
if (src == this->screen)
{
/* blitting from main screen to main screen */
dstarea.pos.y+=ydisp;
srcarea.pos.y+=ydisp;
PgContextBlitArea(OCImage.offscreen_context, &srcarea, OCImage.offscreen_context, &dstarea);
}
else
{
/* blitting from offscreen to main screen */
dstarea.pos.y+=ydisp;
PgContextBlitArea(src->hwdata->offscreenctx, &srcarea, OCImage.offscreen_context, &dstarea);
}
946
947
948
}
else
{
949
950
951
952
953
954
955
956
957
958
959
960
961
if (src == this->screen)
{
/* blitting from main screen to offscreen */
srcarea.pos.y+=ydisp;
PgContextBlitArea(OCImage.offscreen_context, &srcarea, dst->hwdata->offscreenctx, &dstarea);
}
else
{
/* blitting offscreen to offscreen */
PgContextBlitArea(src->hwdata->offscreenctx, &srcarea, dst->hwdata->offscreenctx, &dstarea);
}
}
962
963
964
965
966
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA)
{
PgAlphaOff();
}
967
968
969
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY)
{
PgChromaOff();
970
971
}
}
972
973
974
975
976
977
978
979
980
else
{
SDL_SetError("ph_HWAccelBlit(): Source or target surface is not a hardware surface !\n");
return -1;
}
PgFlush();
PgWaitHWIdle();
981
return 0;
982
983
}
984
int ph_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key)
985
{
986
987
988
989
990
if (this->info.blit_hw_CC!=1)
{
return -1;
}
991
992
993
994
995
996
997
998
999
1000
if (surface->hwdata!=NULL)
{
surface->hwdata->colorkey=ph_ExpandColor(this, surface, key);
if (surface->hwdata->colorkey==0xFFFFFFFFUL)
{
return -1;
}
}
PgSetChroma(surface->hwdata->colorkey, Pg_CHROMA_SRC_MATCH | Pg_CHROMA_NODRAW);