This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_photon_render.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 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
QNX Photon GUI SDL driver
Copyright (C) 2009 Mike Gorchak
(mike@malva.ua, lestat@i.com.ua)
*/
#include "SDL_config.h"
#include "../SDL_pixels_c.h"
#include "../SDL_yuv_sw_c.h"
#include "SDL_video.h"
#include "SDL_photon_render.h"
#include "SDL_photon.h"
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
static SDL_Renderer *photon_createrenderer(SDL_Window * window, Uint32 flags);
static int photon_displaymodechanged(SDL_Renderer * renderer);
static int photon_activaterenderer(SDL_Renderer * renderer);
static int photon_createtexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static int photon_querytexturepixels(SDL_Renderer * renderer,
SDL_Texture * texture, void **pixels,
int *pitch);
static int photon_settexturepalette(SDL_Renderer * renderer,
SDL_Texture * texture,
const SDL_Color * colors, int firstcolor,
int ncolors);
static int photon_gettexturepalette(SDL_Renderer * renderer,
SDL_Texture * texture, SDL_Color * colors,
int firstcolor, int ncolors);
static int photon_settexturecolormod(SDL_Renderer * renderer,
SDL_Texture * texture);
static int photon_settexturealphamod(SDL_Renderer * renderer,
SDL_Texture * texture);
static int photon_settextureblendmode(SDL_Renderer * renderer,
SDL_Texture * texture);
static int photon_settexturescalemode(SDL_Renderer * renderer,
SDL_Texture * texture);
static int photon_updatetexture(SDL_Renderer * renderer,
SDL_Texture * texture, const SDL_Rect * rect,
const void *pixels, int pitch);
static int photon_locktexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, int markDirty,
void **pixels, int *pitch);
static void photon_unlocktexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static void photon_dirtytexture(SDL_Renderer * renderer,
SDL_Texture * texture, int numrects,
const SDL_Rect * rects);
71
72
static int photon_setdrawcolor(SDL_Renderer * renderer);
static int photon_setdrawblendmode(SDL_Renderer * renderer);
73
74
75
76
77
78
79
80
81
82
83
84
static int photon_renderpoint(SDL_Renderer * renderer, int x, int y);
static int photon_renderline(SDL_Renderer * renderer, int x1, int y1, int x2,
int y2);
static int photon_renderfill(SDL_Renderer * renderer, const SDL_Rect * rect);
static int photon_rendercopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect,
const SDL_Rect * dstrect);
static void photon_renderpresent(SDL_Renderer * renderer);
static void photon_destroytexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static void photon_destroyrenderer(SDL_Renderer * renderer);
85
86
static int _photon_recreate_surfaces(SDL_Renderer * renderer);
87
SDL_RenderDriver photon_renderdriver = {
88
89
photon_createrenderer,
{
90
91
92
93
94
95
96
97
98
"photon",
(SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY |
SDL_RENDERER_PRESENTFLIP2 | SDL_RENDERER_PRESENTFLIP3 |
SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_PRESENTDISCARD |
SDL_RENDERER_ACCELERATED),
(SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |
SDL_TEXTUREMODULATE_ALPHA),
(SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |
SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),
99
100
101
102
(SDL_TEXTURESCALEMODE_NONE | SDL_TEXTURESCALEMODE_SLOW |
SDL_TEXTURESCALEMODE_FAST | SDL_TEXTURESCALEMODE_BEST),
10,
{SDL_PIXELFORMAT_INDEX8,
103
104
SDL_PIXELFORMAT_RGB555,
SDL_PIXELFORMAT_RGB565,
105
SDL_PIXELFORMAT_RGB24,
106
107
108
109
110
111
112
113
SDL_PIXELFORMAT_RGB888,
SDL_PIXELFORMAT_ARGB8888,
SDL_PIXELFORMAT_YV12,
SDL_PIXELFORMAT_YUY2,
SDL_PIXELFORMAT_UYVY,
SDL_PIXELFORMAT_YVYU},
0,
0}
116
117
static SDL_Renderer *
photon_createrenderer(SDL_Window * window, Uint32 flags)
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
SDL_DisplayData *didata = (SDL_DisplayData *) display->driverdata;
SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata;
SDL_Renderer *renderer = NULL;
SDL_RenderData *rdata = NULL;
/* Allocate new renderer structure */
renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(SDL_Renderer));
if (renderer == NULL) {
SDL_OutOfMemory();
return NULL;
}
/* Allocate renderer data */
rdata = (SDL_RenderData *) SDL_calloc(1, sizeof(SDL_RenderData));
if (rdata == NULL) {
SDL_free(renderer);
SDL_OutOfMemory();
return NULL;
}
renderer->DisplayModeChanged = photon_displaymodechanged;
renderer->ActivateRenderer = photon_activaterenderer;
renderer->CreateTexture = photon_createtexture;
renderer->QueryTexturePixels = photon_querytexturepixels;
renderer->SetTexturePalette = photon_settexturepalette;
renderer->GetTexturePalette = photon_gettexturepalette;
renderer->SetTextureAlphaMod = photon_settexturealphamod;
renderer->SetTextureColorMod = photon_settexturecolormod;
renderer->SetTextureBlendMode = photon_settextureblendmode;
renderer->SetTextureScaleMode = photon_settexturescalemode;
renderer->UpdateTexture = photon_updatetexture;
renderer->LockTexture = photon_locktexture;
renderer->UnlockTexture = photon_unlocktexture;
renderer->DirtyTexture = photon_dirtytexture;
154
155
renderer->SetDrawColor = photon_setdrawcolor;
renderer->SetDrawBlendMode = photon_setdrawblendmode;
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
renderer->RenderPoint = photon_renderpoint;
renderer->RenderLine = photon_renderline;
renderer->RenderFill = photon_renderfill;
renderer->RenderCopy = photon_rendercopy;
renderer->RenderPresent = photon_renderpresent;
renderer->DestroyTexture = photon_destroytexture;
renderer->DestroyRenderer = photon_destroyrenderer;
renderer->info = photon_renderdriver.info;
renderer->window = window->id;
renderer->driverdata = rdata;
/* Set render acceleration flag in case it is accelerated */
if ((didata->caps & SDL_PHOTON_ACCELERATED) == SDL_PHOTON_ACCELERATED) {
renderer->info.flags = SDL_RENDERER_ACCELERATED;
} else {
renderer->info.flags &= ~(SDL_RENDERER_ACCELERATED);
}
/* Check if upper level requested synchronization on vsync signal */
if ((flags & SDL_RENDERER_PRESENTVSYNC) == SDL_RENDERER_PRESENTVSYNC) {
rdata->enable_vsync = SDL_TRUE;
} else {
rdata->enable_vsync = SDL_FALSE;
}
/* Check what buffer copy/flip scheme is requested */
rdata->surfaces_count = 0;
if ((flags & SDL_RENDERER_SINGLEBUFFER) == SDL_RENDERER_SINGLEBUFFER) {
if ((flags & SDL_RENDERER_PRESENTDISCARD) ==
SDL_RENDERER_PRESENTDISCARD) {
renderer->info.flags |=
SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD;
} else {
renderer->info.flags |=
SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY;
}
rdata->surfaces_count = 1;
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 0;
} else {
if ((flags & SDL_RENDERER_PRESENTFLIP2) == SDL_RENDERER_PRESENTFLIP2) {
renderer->info.flags |= SDL_RENDERER_PRESENTFLIP2;
rdata->surfaces_count = 2;
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 1;
} else {
if ((flags & SDL_RENDERER_PRESENTFLIP3) ==
SDL_RENDERER_PRESENTFLIP3) {
renderer->info.flags |= SDL_RENDERER_PRESENTFLIP3;
rdata->surfaces_count = 3;
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 1;
} else {
renderer->info.flags |=
SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY;
rdata->surfaces_count = 1;
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 0;
}
}
}
218
219
220
221
222
223
224
/* Create new graphics context */
if (rdata->gc==NULL)
{
rdata->gc=PgCreateGC(0);
PgDefaultGC(rdata->gc);
}
225
return renderer;
228
229
void
photon_addrenderdriver(_THIS)
231
uint32_t it;
233
234
235
for (it = 0; it < _this->num_displays; it++) {
SDL_AddRenderDriver(it, &photon_renderdriver);
}
236
237
238
}
/****************************************************************************/
239
/* Render helper functions */
240
/****************************************************************************/
241
242
static int _photon_recreate_surfaces(SDL_Renderer * renderer)
244
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
SDL_VideoDisplay *display = NULL;
SDL_DisplayData *didata = NULL;
SDL_Window *window = NULL;
SDL_WindowData *wdata = NULL;
SDL_VideoData *phdata = NULL;
uint32_t allocate_task=SDL_PHOTON_SURFTYPE_UNKNOWN;
int32_t status;
/* Obtain window and display structures */
window=SDL_GetWindowFromID(renderer->window);
wdata=(SDL_WindowData*)window->driverdata;
display=SDL_GetDisplayFromWindow(window);
didata=(SDL_DisplayData *) display->driverdata;
phdata=(SDL_VideoData *) display->device->driverdata;
/* Check if it is OpenGL ES window */
if ((window->flags & SDL_WINDOW_OPENGL) == SDL_WINDOW_OPENGL) {
/* If so, do not waste surfaces */
rdata->surfaces_type=SDL_PHOTON_SURFTYPE_UNKNOWN;
return 0;
}
if (rdata->surfaces_type==SDL_PHOTON_SURFTYPE_UNKNOWN)
{
/* Try to allocate offscreen surfaces */
allocate_task=SDL_PHOTON_SURFTYPE_OFFSCREEN;
}
else
{
uint32_t it;
if (rdata->surfaces_type==SDL_PHOTON_SURFTYPE_OFFSCREEN)
{
/* Create offscreen surfaces */
allocate_task=SDL_PHOTON_SURFTYPE_OFFSCREEN;
/* Destroy current surfaces */
for (it=0; it<SDL_PHOTON_MAX_SURFACES; it++)
{
if (rdata->osurfaces[it] != NULL)
{
PhDCRelease(rdata->osurfaces[it]);
rdata->osurfaces[it] = NULL;
}
}
}
else
{
if (rdata->surfaces_type==SDL_PHOTON_SURFTYPE_PHIMAGE)
{
/* Create shared phimage surfaces */
allocate_task=SDL_PHOTON_SURFTYPE_PHIMAGE;
/* Destroy current surfaces */
for (it=0; it<SDL_PHOTON_MAX_SURFACES; it++)
{
if (rdata->pcontexts[it]!=NULL)
{
PmMemReleaseMC(rdata->pcontexts[it]);
rdata->pcontexts[it]=NULL;
}
if (rdata->psurfaces[it]!=NULL)
{
if (rdata->psurfaces[it]->palette!=NULL)
{
SDL_free(rdata->psurfaces[it]->palette);
rdata->psurfaces[it]->palette=NULL;
}
/* Destroy shared memory for PhImage_t */
PgShmemDestroy(rdata->psurfaces[it]->image);
rdata->psurfaces[it]->image=NULL;
SDL_free(rdata->psurfaces[it]);
rdata->psurfaces[it]=NULL;
}
}
}
}
}
/* Check if current device is not the same as target */
if (phdata->current_device_id != didata->device_id) {
/* Set target device as default for Pd and Pg functions */
status = PdSetTargetDevice(NULL, phdata->rid[didata->device_id]);
if (status != 0) {
SDL_SetError("Photon: Can't set default target device\n");
return -1;
}
phdata->current_device_id = didata->device_id;
}
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
switch (allocate_task)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
{
int32_t it;
int32_t jt;
/* Try the hardware accelerated offscreen surfaces first */
for (it=0; it<rdata->surfaces_count; it++)
{
rdata->osurfaces[it]=PdCreateOffscreenContext(0, window->w, window->h,
Pg_OSC_MEM_LINEAR_ACCESSIBLE |
/* in case if 2D acceleration is not available use CPU optimized surfaces */
Pg_OSC_MEM_HINT_CPU_READ | Pg_OSC_MEM_HINT_CPU_WRITE |
/* in case if 2D acceleration is available use it */
Pg_OSC_MEM_2D_WRITABLE | Pg_OSC_MEM_2D_READABLE);
/* If we can't create an offscreen surface, then fallback to software */
if (rdata->osurfaces[it]==NULL)
{
/* Destroy previously allocated surface(s) */
for (jt = it - 1; jt > 0; jt--)
{
PhDCRelease(rdata->osurfaces[jt]);
rdata->osurfaces[jt] = NULL;
}
break;
}
}
/* Check if all required surfaces have been created */
if (rdata->osurfaces[0]!=NULL)
{
rdata->surfaces_type=SDL_PHOTON_SURFTYPE_OFFSCREEN;
/* exit from switch if surfaces have been created */
break;
}
else
{
/* else fall through to software phimage surface allocation */
}
}
/* fall through */
case SDL_PHOTON_SURFTYPE_PHIMAGE:
{
int32_t it;
int32_t jt;
uint32_t image_pfmt=photon_sdl_to_image_pixelformat(didata->current_mode.format);
/* Try to allocate the software surfaces in shared memory */
for (it=0; it<rdata->surfaces_count; it++)
{
/* If this surface with palette, create a palette space */
if (image_pfmt==Pg_IMAGE_PALETTE_BYTE)
{
rdata->psurfaces[it]=PhCreateImage(NULL, window->w, window->h,
image_pfmt, NULL, 256, 1);
}
else
{
rdata->psurfaces[it]=PhCreateImage(NULL, window->w, window->h,
image_pfmt, NULL, 0, 1);
}
if (rdata->psurfaces[it]!=NULL)
{
PhPoint_t translation={0, 0};
PhDim_t dimension={window->w, window->h};
/* Create memory context for PhImage_t */
rdata->pcontexts[it]=PmMemCreateMC(rdata->psurfaces[it], &dimension, &translation);
}
if ((rdata->psurfaces[it]==NULL) || (rdata->pcontexts[it]==NULL))
{
/* Destroy previously allocated surface(s) */
for (jt = it - 1; jt > 0; jt--)
{
if (rdata->pcontexts[jt]!=NULL)
{
PmMemReleaseMC(rdata->pcontexts[it]);
rdata->pcontexts[jt]=NULL;
}
if (rdata->psurfaces[jt]!=NULL)
{
if (rdata->psurfaces[jt]->palette!=NULL)
{
SDL_free(rdata->psurfaces[jt]->palette);
rdata->psurfaces[jt]->palette=NULL;
}
/* Destroy shared memory for PhImage_t */
PgShmemDestroy(rdata->psurfaces[jt]->image);
rdata->psurfaces[jt]->image=NULL;
SDL_free(rdata->psurfaces[jt]);
rdata->psurfaces[jt] = NULL;
}
}
break;
}
}
/* Check if all required surfaces have been created */
if (rdata->psurfaces[0]!=NULL)
{
rdata->surfaces_type=SDL_PHOTON_SURFTYPE_PHIMAGE;
}
else
{
rdata->surfaces_type=SDL_PHOTON_SURFTYPE_UNKNOWN;
}
}
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
{
/* do nothing with surface allocation */
rdata->surfaces_type=SDL_PHOTON_SURFTYPE_UNKNOWN;
}
break;
}
/* Check if one of two allocation scheme was successful */
if (rdata->surfaces_type==SDL_PHOTON_SURFTYPE_UNKNOWN)
{
SDL_SetError("Photon: primary surface(s) allocation failure");
return -1;
}
/* Store current surface dimensions */
rdata->window_width=window->w;
rdata->window_height=window->h;
/* If current copy/flip scheme is single buffer, then set initial parameters */
if ((renderer->info.flags & SDL_RENDERER_SINGLEBUFFER)==SDL_RENDERER_SINGLEBUFFER)
{
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 0;
}
/* If current copy/flip scheme is double buffer, then set initial parameters */
if ((renderer->info.flags & SDL_RENDERER_PRESENTFLIP2)==SDL_RENDERER_PRESENTFLIP2)
{
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 1;
}
/* If current copy/flip scheme is triple buffer, then set initial parameters */
if ((renderer->info.flags & SDL_RENDERER_PRESENTFLIP3)==SDL_RENDERER_PRESENTFLIP3)
{
rdata->surface_visible_idx = 0;
rdata->surface_render_idx = 1;
}
487
488
489
490
491
492
493
494
495
496
497
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgSetGCCx(rdata->osurfaces[rdata->surface_render_idx], rdata->gc);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgSetGCCx(rdata->pcontexts[rdata->surface_render_idx], rdata->gc);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
499
return 0;
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
int _photon_update_rectangles(SDL_Renderer* renderer, PhRect_t* rect)
{
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
SDL_Window *window = window=SDL_GetWindowFromID(renderer->window);
SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata;
PhPoint_t src_point;
/* If currently single buffer is in use, we have to flush all data */
if (rdata->surface_render_idx==rdata->surface_visible_idx)
{
/* Flush all undrawn graphics data to surface */
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgFlushCx(rdata->osurfaces[rdata->surface_visible_idx]);
PgWaitHWIdle();
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PmMemFlush(rdata->pcontexts[rdata->surface_visible_idx], rdata->psurfaces[rdata->surface_visible_idx]);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
return;
}
}
PgSetRegionCx(PhDCGetCurrent(), PtWidgetRid(wdata->window));
src_point.x = rect->ul.x;
src_point.y = rect->ul.y;
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgContextBlit(rdata->osurfaces[rdata->surface_visible_idx], rect, NULL, rect);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgDrawPhImageRectv(&src_point, rdata->psurfaces[rdata->surface_visible_idx], rect, 0);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
}
/****************************************************************************/
/* SDL render interface */
/****************************************************************************/
549
550
static int
photon_activaterenderer(SDL_Renderer * renderer)
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_WindowData *wdata = (SDL_WindowData *)window->driverdata;
if ((rdata->window_width!=window->w) || (rdata->window_height!=window->h))
{
return _photon_recreate_surfaces(renderer);
}
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgSetGCCx(rdata->osurfaces[rdata->surface_render_idx], rdata->gc);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgSetGCCx(rdata->pcontexts[rdata->surface_render_idx], rdata->gc);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
return 0;
}
576
577
578
579
static int
photon_displaymodechanged(SDL_Renderer * renderer)
{
return _photon_recreate_surfaces(renderer);
582
583
static int
photon_createtexture(SDL_Renderer * renderer, SDL_Texture * texture)
585
586
587
588
589
590
591
592
593
594
595
596
597
598
SDL_RenderData *renderdata = (SDL_RenderData *) renderer->driverdata;
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
SDL_TextureData *tdata = NULL;
/* Allocate texture driver data */
tdata = (SDL_TextureData *) SDL_calloc(1, sizeof(SDL_TextureData));
if (tdata == NULL) {
SDL_OutOfMemory();
return -1;
}
/* Set texture driver data */
texture->driverdata = tdata;
601
602
603
static int
photon_querytexturepixels(SDL_Renderer * renderer, SDL_Texture * texture,
void **pixels, int *pitch)
604
605
606
{
}
607
608
609
610
static int
photon_settexturepalette(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Color * colors, int firstcolor,
int ncolors)
611
612
613
{
}
614
615
616
static int
photon_gettexturepalette(SDL_Renderer * renderer, SDL_Texture * texture,
SDL_Color * colors, int firstcolor, int ncolors)
617
618
619
{
}
620
621
static int
photon_settexturecolormod(SDL_Renderer * renderer, SDL_Texture * texture)
622
623
624
{
}
625
626
static int
photon_settexturealphamod(SDL_Renderer * renderer, SDL_Texture * texture)
627
628
629
{
}
630
631
static int
photon_settextureblendmode(SDL_Renderer * renderer, SDL_Texture * texture)
632
633
634
{
}
635
636
static int
photon_settexturescalemode(SDL_Renderer * renderer, SDL_Texture * texture)
637
638
639
{
}
640
641
642
static int
photon_updatetexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
643
644
645
{
}
646
647
648
649
static int
photon_locktexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, int markDirty, void **pixels,
int *pitch)
650
651
652
{
}
653
654
static void
photon_unlocktexture(SDL_Renderer * renderer, SDL_Texture * texture)
655
656
657
{
}
658
659
660
static void
photon_dirtytexture(SDL_Renderer * renderer, SDL_Texture * texture,
int numrects, const SDL_Rect * rects)
661
662
663
{
}
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
static int
photon_setdrawcolor(SDL_Renderer * renderer)
{
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgSetFillColorCx(rdata->gc, PgRGB(renderer->r, renderer->g, renderer->b));
PgSetStrokeColorCx(rdata->gc, PgRGB(renderer->r, renderer->g, renderer->b));
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
}
static int
photon_setdrawblendmode(SDL_Renderer * renderer)
{
}
686
687
static int
photon_renderpoint(SDL_Renderer * renderer, int x, int y)
689
690
691
692
693
694
695
696
697
698
699
700
701
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgDrawIPixelCx(rdata->osurfaces[rdata->surface_render_idx], x, y);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgDrawIPixelCx(rdata->pcontexts[rdata->surface_render_idx], x, y);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
704
705
static int
photon_renderline(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
707
708
709
710
711
712
713
714
715
716
717
718
719
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgDrawILineCx(rdata->osurfaces[rdata->surface_render_idx], x1, y1, x2, y2);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgDrawILineCx(rdata->pcontexts[rdata->surface_render_idx], x1, y1, x2, y2);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
722
723
static int
photon_renderfill(SDL_Renderer * renderer, const SDL_Rect * rect)
725
726
727
728
729
730
731
732
733
734
735
736
737
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgDrawIRectCx(rdata->osurfaces[rdata->surface_render_idx], rect->x, rect->y, rect->w+rect->x-1, rect->h+rect->y-1, Pg_DRAW_FILL);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgDrawIRectCx(rdata->pcontexts[rdata->surface_render_idx], rect->x, rect->y, rect->w+rect->x-1, rect->h+rect->y-1, Pg_DRAW_FILL);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
740
741
742
static int
photon_rendercopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
743
744
745
{
}
746
747
static void
photon_renderpresent(SDL_Renderer * renderer)
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
SDL_Window *window = window=SDL_GetWindowFromID(renderer->window);
SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata;
PhRect_t src_rect;
PhPoint_t src_point;
/* Flush all undrawn graphics data to surface */
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgFlushCx(rdata->osurfaces[rdata->surface_render_idx]);
PgWaitHWIdle();
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PmMemFlush(rdata->pcontexts[rdata->surface_render_idx], rdata->psurfaces[rdata->surface_render_idx]);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
return;
}
PgFFlush(Ph_START_DRAW);
PgSetRegionCx(PhDCGetCurrent(), PtWidgetRid(wdata->window));
/* Set blit area */
src_rect.ul.x = 0;
src_rect.ul.y = 0;
src_rect.lr.x = rdata->window_width - 1;
src_rect.lr.y = rdata->window_height - 1;
src_point.x = 0;
src_point.y = 0;
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
PgContextBlit(rdata->osurfaces[rdata->surface_render_idx], &src_rect, NULL, &src_rect);
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
PgDrawPhImagev(&src_point, rdata->psurfaces[rdata->surface_render_idx], 0);
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
break;
}
/* finish blit */
PgFFlush(Ph_DONE_DRAW);
PgWaitHWIdle();
798
799
static void
photon_destroytexture(SDL_Renderer * renderer, SDL_Texture * texture)
800
801
802
{
}
803
804
static void
photon_destroyrenderer(SDL_Renderer * renderer)
806
SDL_RenderData *rdata = (SDL_RenderData *) renderer->driverdata;
807
808
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_WindowData *wdata = (SDL_WindowData *)window->driverdata;
809
uint32_t it;
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
/* Destroy graphics context */
if (rdata->gc!=NULL)
{
PgDestroyGC(rdata->gc);
rdata->gc=NULL;
}
switch (rdata->surfaces_type)
{
case SDL_PHOTON_SURFTYPE_OFFSCREEN:
{
/* Destroy current surfaces */
for (it=0; it<SDL_PHOTON_MAX_SURFACES; it++)
{
if (rdata->osurfaces[it] != NULL)
{
PhDCRelease(rdata->osurfaces[it]);
rdata->osurfaces[it] = NULL;
}
}
}
break;
case SDL_PHOTON_SURFTYPE_PHIMAGE:
{
/* Destroy current surfaces */
for (it=0; it<SDL_PHOTON_MAX_SURFACES; it++)
{
if (rdata->pcontexts[it]!=NULL)
{
PmMemReleaseMC(rdata->pcontexts[it]);
rdata->pcontexts[it]=NULL;
}
if (rdata->psurfaces[it]!=NULL)
{
if (rdata->psurfaces[it]->palette!=NULL)
{
SDL_free(rdata->psurfaces[it]->palette);
rdata->psurfaces[it]->palette=NULL;
}
/* Destroy shared memory for PhImage_t */
PgShmemDestroy(rdata->psurfaces[it]->image);
rdata->psurfaces[it]->image=NULL;
SDL_free(rdata->psurfaces[it]);
rdata->psurfaces[it]=NULL;
}
}
}
break;
case SDL_PHOTON_SURFTYPE_UNKNOWN:
{
/* nothing to do */
}
break;
}
865
866
867
}
/* vi: set ts=4 sw=4 expandtab: */