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comparison src/video/photon/SDL_phyuv.c @ 0:74212992fb08

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Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
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children e8157fcb3114
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1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@devolution.com
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id$";
26 #endif
27
28 /* This is the QNX Realtime Platform version for SDL YUV video overlays */
29
30 #include <stdlib.h>
31 #include <string.h>
32 //#include <ncurses.h> //only for bool
33 #ifndef bool
34 #define bool char
35 #define TRUE 1
36 #define FALSE 0
37 #endif
38 #include <errno.h>
39
40 #include <Ph.h>
41 #include <Pt.h>
42
43 #include "SDL_error.h"
44 #include "SDL_video.h"
45 #include "SDL_phyuv_c.h"
46 #include "SDL_yuvfuncs.h"
47
48 #if 0 //just for reference
49 /* YUV data formats FourCC Layout H sample (YUV) V sample (YUV) BPP */
50 #define Pg_VIDEO_FORMAT_IYU1 0x31555949 /* U2Y2Y2V2Y2Y2 144 111 12 */
51 #define Pg_VIDEO_FORMAT_IYU2 0x32555949 /* U4Y4V4U4Y4V4 111 111 24 */
52 #define Pg_VIDEO_FORMAT_UYVY 0x59565955 /* U8Y8V8Y8 122 111 16 */
53 #define Pg_VIDEO_FORMAT_YUY2 0x32595559 /* Y8U8Y8V8 122 111 16 */
54 #define Pg_VIDEO_FORMAT_YVYU 0x55595659 /* Y8V8Y8U8 122 111 16 */
55 #define Pg_VIDEO_FORMAT_V422 0x56343232 /* V8Y8U8Y8 122 111 16 */
56 #define Pg_VIDEO_FORMAT_CLJR 0x524a4c43 /* V6U6Y5Y5Y5Y5 133 111 8 */
57 #define Pg_VIDEO_FORMAT_YVU9 0x39555659 /* Planar YVU 144 144 9 */
58 #define Pg_VIDEO_FORMAT_YV12 0x32315659 /* Planar YUV 122 122 12 */
59
60 /* There seems to be no FourCC that matches this */
61 #define Pg_VIDEO_FORMAT_YUV420 0x00000100 /* Planar YUV 122 111 16 */
62
63 /* These formats are the same as YV12, except the U and V planes do not have to contiguously follow the Y plane */
64 /* but they're all the same to us, since we always have 3 plane pointers */
65 #define Pg_VIDEO_FORMAT_CLPL Pg_VIDEO_FORMAT_YV12 /* Cirrus Logic Planar format */
66 #define Pg_VIDEO_FORMAT_VBPL Pg_VIDEO_FORMAT_YV12 /* VooDoo Banshee planar format */
67
68 #define SDL_YV12_OVERLAY 0x32315659 /* Planar mode: Y + V + U */
69 #define SDL_IYUV_OVERLAY 0x56555949 /* Planar mode: Y + U + V */
70 #define SDL_YUY2_OVERLAY 0x32595559 /* Packed mode: Y0+U0+Y1+V0 */
71 #define SDL_UYVY_OVERLAY 0x59565955 /* Packed mode: U0+Y0+V0+Y1 */
72 #define SDL_YVYU_OVERLAY 0x55595659 /* Packed mode: Y0+V0+Y1+U0 */
73
74 #endif
75
76
77 #define OVERLAY_STATE_UNINIT 0
78 #define OVERLAY_STATE_ACTIVE 1
79
80 /* The functions used to manipulate software video overlays */
81 static struct private_yuvhwfuncs ph_yuvfuncs = {
82 ph_LockYUVOverlay,
83 ph_UnlockYUVOverlay,
84 ph_DisplayYUVOverlay,
85 ph_FreeYUVOverlay
86 };
87
88
89 typedef struct {
90 int id;
91 int width, height;
92 int data_size; /* bytes */
93 int num_planes;
94 int *pitches; /* bytes */
95 int *offsets; /* bytes */
96 char *data;
97 void *obdata;
98 } XvImage;
99
100
101 struct private_yuvhwdata {
102 XvImage *image;
103 FRAMEDATA *CurrentFrameData;
104 FRAMEDATA *FrameData0;
105 FRAMEDATA *FrameData1;
106 PgScalerProps_t props;
107 PgScalerCaps_t caps;
108 PgVideoChannel_t *channel;
109 SDL_Rect CurrentWindow;
110 long format;
111 int screen_width;
112 int screen_height ;
113 int screen_bpp ; //2
114 bool planar;
115 bool scaler_on ;
116 int current;
117 long YStride;
118 long VStride;
119 long UStride;
120 long chromakey;
121 unsigned long State;
122 long flags;
123 };
124
125 extern PgVideoChannel_t * PgCreateVideoChannel(unsigned type, unsigned flags);
126 extern int PgGetScalerCapabilities( PgVideoChannel_t *channel, int format_index, PgScalerCaps_t *vcaps );
127 extern int PgConfigScalerChannel(PgVideoChannel_t *channel, PgScalerProps_t *props);
128 extern void PgDestroyVideoChannel(PgVideoChannel_t *channel);
129 extern PgColor_t PgGetOverlayChromaColor(void);
130
131 void
132 grab_ptrs2(PgVideoChannel_t *channel, FRAMEDATA *Frame0, FRAMEDATA *Frame1 )
133 {
134
135 /* Buffers have moved; re-obtain the pointers */
136 Frame0->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane1);
137 Frame1->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane2);
138 Frame0->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane1);
139 Frame1->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane2);
140 Frame0->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane1);
141 Frame1->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane2);
142
143 }
144
145 SDL_Overlay *ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
146 {
147 SDL_Overlay *overlay;
148 struct private_yuvhwdata *hwdata;
149 int xv_port;
150 int rtncode;
151 // PhRect_t rect;
152 // PhSysInfo_t info;
153 // PhRegion_t region;
154 // short x, y;
155 PtArg_t argt;
156 int i =0;
157 // bool bCont = TRUE;
158 int Priority[20];
159 int Type[20];
160 int entries, select, highest;
161
162 PhDCSetCurrent(0); //Need to set draw context to window esp. if we we in Offscreeen mode
163
164 /* Create the overlay structure */
165 overlay = (SDL_Overlay *)malloc(sizeof *overlay);
166 if ( overlay == NULL ) {
167 SDL_OutOfMemory();
168 return(NULL);
169 }
170 memset(overlay, 0, (sizeof *overlay));
171
172 /* Fill in the basic members */
173 overlay->format = format;
174 overlay->w = width;
175 overlay->h = height;
176
177 /* Set up the YUV surface function structure */
178 overlay->hwfuncs = &ph_yuvfuncs;
179
180 /* Create the pixel data and lookup tables */
181 hwdata = (struct private_yuvhwdata *)malloc(sizeof *hwdata);
182 overlay->hwdata = hwdata;
183 if ( hwdata == NULL ) {
184 SDL_OutOfMemory();
185 SDL_FreeYUVOverlay(overlay);
186 return(NULL);
187 }
188
189 if (overlay->hwdata->channel == NULL)
190 {
191
192
193 if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER,0)) == NULL)
194 {
195 SDL_SetError("Create channel failed:%s\n", strerror( errno ));
196 free(overlay->hwdata);
197 free(overlay);
198 return(NULL);
199 }
200 #if 0
201 overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps);
202 PgGetScalerCapabilities(overlay->hwdata->channel, 0, &(overlay->hwdata->caps));
203 if (overlay->hwdata->caps.flags & Pg_SCALER_CAP_DOUBLE_BUFFER)
204 overlay->hwdata->props.flags |= Pg_SCALER_PROP_DOUBLE_BUFFER;
205 #endif
206 }
207
208 overlay->hwdata->CurrentWindow.x = 0;
209 overlay->hwdata->CurrentWindow.y = 0;
210 overlay->hwdata->CurrentWindow.w = 320;
211 overlay->hwdata->CurrentWindow.h = 240;
212
213
214
215 overlay->hwdata->State = OVERLAY_STATE_UNINIT;
216
217 overlay->hwdata->screen_bpp = 2;
218 overlay->hwdata->scaler_on = FALSE;
219
220 overlay->hwdata->screen_width = 1024;
221 overlay->hwdata->screen_height = 768;
222
223 overlay->hwdata->FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
224 overlay->hwdata->FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
225
226 overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);
227
228
229 //Note you really don't need to do this for SDL as you are given a format, but this is a good example
230
231 xv_port = -1;
232 i=0;
233
234 while(PgGetScalerCapabilities(overlay->hwdata->channel, i++, &(overlay->hwdata->caps)) == 0)
235 {
236
237 if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YV12) //in SDL
238 {
239
240 Priority[i-1] = 0;
241 Type[i-1] = Pg_VIDEO_FORMAT_YV12;
242 if(format == Pg_VIDEO_FORMAT_YV12)
243 {
244 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YV12;
245 xv_port = 1; //supported
246 Priority[i-1] = 100; //force selected
247 }
248
249 }
250 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YVU9) //in SDL
251 {
252
253 Priority[i-1] = 0;
254 Type[i-1] = Pg_VIDEO_FORMAT_YVU9;
255 if(format == Pg_VIDEO_FORMAT_YVU9)
256 {
257 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YVU9;
258 xv_port = 1; //supported
259 Priority[i-1] = 100; //force selected
260 }
261
262 }
263 #if 0 //this part of SDL is YUV specific
264 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB555)
265 {
266
267 Priority[i-1] = 3;
268 Type[i-1] = Pg_VIDEO_FORMAT_RGB555;
269 }
270 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB565)
271 {
272
273 Priority[i-1] = 2;
274 Type[i-1] = Pg_VIDEO_FORMAT_RGB565;
275 }
276 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB8888)
277 {
278
279 Priority[i-1] = 1;
280 Type[i-1] = Pg_VIDEO_FORMAT_RGB8888;
281 }
282 #endif
283 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_IYU1)
284 {
285
286 Priority[i-1] = 0;
287 Type[i-1] = Pg_VIDEO_FORMAT_IYU1;
288
289 }
290 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_IYU2)
291 {
292
293 Priority[i-1] = 0;
294 Type[i-1] = Pg_VIDEO_FORMAT_IYU2;
295 }
296
297 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_UYVY) //in SDL
298 {
299
300 Priority[i-1] = 7;
301 Type[i-1] = Pg_VIDEO_FORMAT_UYVY;
302 if(format == Pg_VIDEO_FORMAT_UYVY)
303 {
304 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_UYVY;
305 xv_port = 1; //supported
306 Priority[i-1] = 100; //force selected
307 }
308
309 }
310 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YUY2) //in SDL
311 {
312
313 Priority[i-1] = 8;
314 Type[i-1] = Pg_VIDEO_FORMAT_YUY2;
315 if(format == Pg_VIDEO_FORMAT_YUY2)
316 {
317 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YUY2;
318 xv_port = 1; //supported
319 Priority[i-1] = 100; //force selected
320 }
321
322 }
323 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YVYU) //in SDL
324 {
325
326 Priority[i-1] = 4;
327 Type[i-1] = Pg_VIDEO_FORMAT_YVYU;
328
329 if(format == Pg_VIDEO_FORMAT_YVYU)
330 {
331 overlay->hwdata->props.format = Pg_VIDEO_FORMAT_YVYU;
332 xv_port = 1; //supported
333 Priority[i-1] = 100; //force selected
334
335 }
336
337 }
338 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_V422)
339 {
340
341 Priority[i-1] = 5;
342 Type[i-1] = Pg_VIDEO_FORMAT_V422;
343 }
344 else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_CLJR)
345 {
346
347 Priority[i-1] = 6;
348 Type[i-1] = Pg_VIDEO_FORMAT_CLJR;
349 }
350 else
351 {
352
353 Priority[i-1] = 0;
354 }
355
356 overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);
357 }
358
359 if ( xv_port == -1 )
360 {
361 SDL_SetError("No available video ports for requested format");
362 return(NULL);
363 }
364
365 //Pick the highest priority format
366 entries = i -2;
367 highest = Priority[0]; //make first entry top at begining
368 select = 0;
369
370 for (i = 1; i < entries; i++)
371 {
372
373
374 if(Priority[i] > highest)
375 {
376 highest = Priority[i];
377 select = i;
378 }
379 }
380
381
382
383 overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps );
384 PgGetScalerCapabilities(overlay->hwdata->channel, select, &(overlay->hwdata->caps));
385 overlay->hwdata->props.format = overlay->hwdata->caps.format ;
386
387 overlay->hwdata->format = overlay->hwdata->props.format; //to make easier for apps to use
388
389
390 overlay->hwdata->props.size = sizeof (overlay->hwdata->props);
391 overlay->hwdata->props.src_dim.w = width;
392 overlay->hwdata->props.src_dim.h = height;
393
394 overlay->hwdata->chromakey = PgGetOverlayChromaColor();
395
396 // Set chromakey in video widget so we can see overlay data
397 /* I don't know where the container widget is!!!, I guess it is in hidden->window*/
398
399 PtEnter(0);
400 PtSetArg( &argt, Pt_ARG_FILL_COLOR, overlay->hwdata->chromakey, 0 );
401 PtSetResources( window, 1, &argt );
402 PtLeave(0);
403
404
405 fflush( stderr );
406
407 overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x;
408 overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y;
409 //Next line MIGHT have x and y reversed!!!!!!!!!!!!
410 overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w;
411 overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h;
412
413
414
415 overlay->hwdata->props.flags =
416 ~Pg_SCALER_PROP_SCALER_ENABLE | Pg_SCALER_PROP_DOUBLE_BUFFER ;
417
418 if (overlay->hwdata->chromakey) {
419 overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE;
420 overlay->hwdata->props.color_key = overlay->hwdata->chromakey;
421 overlay->hwdata->props.color_key_mask = 0xffffff;
422 }
423 else
424 {
425 overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_CHROMA_ENABLE;
426 }
427
428
429 overlay->hwdata->scaler_on = FALSE;
430
431
432
433 rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
434 switch(rtncode)
435 {
436 case -1:
437 SDL_SetError("PgConfigScalerChannel failed\n");
438 SDL_FreeYUVOverlay(overlay);
439 return(NULL);
440 break;
441 case 1:
442 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
443 break;
444 case 0:
445 default:
446 break;
447 }
448
449
450 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
451
452 if(overlay->hwdata->channel->yplane1 != NULL)
453 overlay->hwdata->YStride = overlay->hwdata->channel->yplane1->pitch;
454 if(overlay->hwdata->channel->uplane1 != NULL)
455 overlay->hwdata->UStride = overlay->hwdata->channel->uplane1->pitch;
456 if(overlay->hwdata->channel->vplane1 != NULL)
457 overlay->hwdata->VStride = overlay->hwdata->channel->vplane1->pitch;
458
459
460 overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
461
462
463
464 if (overlay->hwdata->current == -1)
465 {
466 SDL_SetError("PgNextFrame failed, bailing out\n");
467 SDL_FreeYUVOverlay(overlay);
468 return(NULL);
469 }
470
471 //set current frame for double buffering
472 if(overlay->hwdata->current == 0)
473 {
474 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
475 }
476 else
477 {
478 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
479 }
480
481 overlay->hwdata->State = OVERLAY_STATE_ACTIVE;
482
483
484 /* We're all done.. */
485 return(overlay);
486 }
487
488 int ph_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
489 {
490 //int rtncode;
491
492 if(overlay == NULL)
493 return 0;
494
495 //set current frame for double buffering
496 if(overlay->hwdata->current == 0)
497 {
498 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
499 }
500 else
501 {
502 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
503 }
504
505 //Lock gets the pointer and passes it to the app. The app writes all yuv data into overlay->pixels
506 //Note this is defined as Uint8 **pixels; /* Read-write */
507 overlay->pixels = &overlay->hwdata->CurrentFrameData->Y;
508 overlay->pitches = &overlay->hwdata->YStride;
509
510 return(0);
511 }
512
513 void ph_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
514 {
515 int rtncode;
516
517 if(overlay == NULL)
518 return ;
519
520 if(overlay->hwdata->scaler_on == FALSE)
521 {
522
523
524 overlay->hwdata->props.flags |= Pg_SCALER_PROP_SCALER_ENABLE;
525 rtncode =PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
526 switch(rtncode)
527 {
528 case -1:
529 SDL_SetError("PgConfigScalerChannel failed\n");
530 SDL_FreeYUVOverlay(overlay);
531 break;
532 case 1:
533 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
534 overlay->hwdata->scaler_on = TRUE;
535 break;
536 case 0:
537 default:
538 overlay->hwdata->scaler_on = TRUE;
539 break;
540 }
541 //This would be the best place to draw chromakey but we do not have a SDL_Surface in the args
542 //This means we might see a chromakey flicker at startup
543 }
544 overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
545
546
547 if (overlay->hwdata->current == -1) {
548 SDL_SetError("PgNextVideoFrame failed\n");
549 SDL_FreeYUVOverlay(overlay);
550 return;
551 }
552
553 overlay->pixels = NULL;
554 }
555
556 int ph_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect)
557 {
558 int rtncode;
559
560 if(overlay == NULL)
561 return 0;
562
563
564 /*SDL_Rect CurrentWindow*/
565 //If CurrentWindow has change, move the viewport
566 if((overlay->hwdata->CurrentWindow.x != dstrect->x) ||
567 (overlay->hwdata->CurrentWindow.y != dstrect->y) ||
568 (overlay->hwdata->CurrentWindow.w != dstrect->w) ||
569 (overlay->hwdata->CurrentWindow.h != dstrect->h))
570 {
571 if(overlay->hwdata->State == OVERLAY_STATE_UNINIT)
572 return -1;
573
574 overlay->hwdata->CurrentWindow.x = dstrect->x;
575 overlay->hwdata->CurrentWindow.y = dstrect->y;
576 overlay->hwdata->CurrentWindow.w = dstrect->w;
577 overlay->hwdata->CurrentWindow.h = dstrect->h;
578
579 overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x;
580 overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y;
581 //Next line MIGHT have x and y reversed!!!!!!!!!!!!
582 overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w;
583 overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h;
584
585
586 rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
587
588 switch(rtncode)
589 {
590 case -1:
591 SDL_SetError("PgConfigScalerChannel failed\n");
592 SDL_FreeYUVOverlay(overlay);
593 return(0);
594 break;
595 case 1:
596 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
597 break;
598 case 0:
599 default:
600 break;
601 }
602 }
603
604
605 //JB the X11 file did this. We do this in SDL_unlock, we need to confirm that lock and unlock are called for each frame!
606 // XvShmPutImage(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
607 // hwdata->image, 0, 0, overlay->w, overlay->h,
608 // dstrect->x, dstrect->y, dstrect->w, dstrect->h, False);
609 /* This is what this call is
610 int XvShmPutImage (
611 Display *dpy,
612 XvPortID port,
613 Drawable d,
614 GC gc,
615 XvImage *image,
616 int src_x,
617 int src_y,
618 unsigned int src_w,
619 unsigned int src_h,
620 int dest_x,
621 int dest_y,
622 unsigned int dest_w,
623 unsigned int dest_h,
624 Bool send_event
625 )
626 */
627
628 return(0);
629 }
630
631 void ph_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
632 {
633 //struct private_yuvhwdata *hwdata;
634
635 if(overlay == NULL)
636 return;
637
638 if(overlay->hwdata == NULL)
639 return;
640
641 overlay->hwdata->State = OVERLAY_STATE_UNINIT;
642
643 if( overlay->hwdata->channel == NULL )
644 {
645 return;
646 }
647
648 PgDestroyVideoChannel(overlay->hwdata->channel);
649
650 overlay->hwdata->channel = NULL;
651 overlay->hwdata->CurrentFrameData = NULL;
652
653 free(overlay->hwdata->FrameData0);
654 free(overlay->hwdata->FrameData1);
655 overlay->hwdata->FrameData0 = NULL;
656 overlay->hwdata->FrameData1 = NULL;
657 free(overlay->hwdata);
658
659 }