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 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 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 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 /* This is the QNX Realtime Platform version of SDL YUV video overlays */
25
26 #include <errno.h>
27
28 #include <Ph.h>
29 #include <Pt.h>
30
31 #include "SDL_video.h"
32 #include "SDL_phyuv_c.h"
33 #include "../SDL_yuvfuncs.h"
34
35 #define OVERLAY_STATE_UNINIT 0
36 #define OVERLAY_STATE_ACTIVE 1
37
38 /* The functions are used to manipulate software video overlays */
39 static struct private_yuvhwfuncs ph_yuvfuncs =
40 {
41 ph_LockYUVOverlay,
42 ph_UnlockYUVOverlay,
43 ph_DisplayYUVOverlay,
44 ph_FreeYUVOverlay
45 };
46
grab_ptrs2(PgVideoChannel_t * channel,FRAMEDATA * Frame0,FRAMEDATA * Frame1)47 int grab_ptrs2(PgVideoChannel_t* channel, FRAMEDATA* Frame0, FRAMEDATA* Frame1)
48 {
49 int planes = 0;
50
51 /* Buffers have moved; re-obtain the pointers */
52 Frame0->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane1);
53 Frame1->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane2);
54 Frame0->U = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane1);
55 Frame1->U = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane2);
56 Frame0->V = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane1);
57 Frame1->V = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane2);
58
59 if (Frame0->Y)
60 planes++;
61
62 if (Frame0->U)
63 planes++;
64
65 if (Frame0->V)
66 planes++;
67
68 return planes;
69 }
70
ph_CreateYUVOverlay(_THIS,int width,int height,Uint32 format,SDL_Surface * display)71 SDL_Overlay* ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface* display)
72 {
73 SDL_Overlay* overlay;
74 struct private_yuvhwdata* hwdata;
75 int vidport;
76 int rtncode;
77 int planes;
78 int i=0;
79 PhPoint_t pos;
80
81 /* Create the overlay structure */
82 overlay = SDL_calloc(1, sizeof(SDL_Overlay));
83
84 if (overlay == NULL)
85 {
86 SDL_OutOfMemory();
87 return NULL;
88 }
89
90 /* Fill in the basic members */
91 overlay->format = format;
92 overlay->w = width;
93 overlay->h = height;
94 overlay->hwdata = NULL;
95
96 /* Set up the YUV surface function structure */
97 overlay->hwfuncs = &ph_yuvfuncs;
98
99 /* Create the pixel data and lookup tables */
100 hwdata = SDL_calloc(1, sizeof(struct private_yuvhwdata));
101
102 if (hwdata == NULL)
103 {
104 SDL_OutOfMemory();
105 SDL_FreeYUVOverlay(overlay);
106 return NULL;
107 }
108
109 overlay->hwdata = hwdata;
110
111 PhDCSetCurrent(0);
112 if (overlay->hwdata->channel == NULL)
113 {
114 if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER, 0)) == NULL)
115 {
116 SDL_SetError("ph_CreateYUVOverlay(): Create channel failed: %s\n", strerror(errno));
117 SDL_FreeYUVOverlay(overlay);
118 return NULL;
119
120 }
121 }
122
123 overlay->hwdata->forcedredraw=0;
124
125 PtGetAbsPosition(window, &pos.x, &pos.y);
126 overlay->hwdata->CurrentWindowPos.x = pos.x;
127 overlay->hwdata->CurrentWindowPos.y = pos.y;
128 overlay->hwdata->CurrentViewPort.pos.x = 0;
129 overlay->hwdata->CurrentViewPort.pos.y = 0;
130 overlay->hwdata->CurrentViewPort.size.w = width;
131 overlay->hwdata->CurrentViewPort.size.h = height;
132 overlay->hwdata->State = OVERLAY_STATE_UNINIT;
133 overlay->hwdata->FrameData0 = (FRAMEDATA *) SDL_calloc(1, sizeof(FRAMEDATA));
134 overlay->hwdata->FrameData1 = (FRAMEDATA *) SDL_calloc(1, sizeof(FRAMEDATA));
135
136 vidport = -1;
137 i=0;
138
139 overlay->hwdata->ischromakey=0;
140
141 do {
142 SDL_memset(&overlay->hwdata->caps, 0x00, sizeof(PgScalerCaps_t));
143 overlay->hwdata->caps.size = sizeof(PgScalerCaps_t);
144 rtncode = PgGetScalerCapabilities(overlay->hwdata->channel, i, &overlay->hwdata->caps);
145 if (rtncode==0)
146 {
147 if (overlay->hwdata->caps.format==format)
148 {
149 if ((overlay->hwdata->caps.flags & Pg_SCALER_CAP_DST_CHROMA_KEY) == Pg_SCALER_CAP_DST_CHROMA_KEY)
150 {
151 overlay->hwdata->ischromakey=1;
152 }
153 vidport=1;
154 break;
155 }
156 }
157 else
158 {
159 break;
160 }
161 i++;
162 } while(1);
163
164
165 if (vidport == -1)
166 {
167 SDL_SetError("No available video ports for requested format\n");
168 SDL_FreeYUVOverlay(overlay);
169 return NULL;
170 }
171
172 overlay->hwdata->format = format;
173 overlay->hwdata->props.format = format;
174 overlay->hwdata->props.size = sizeof(PgScalerProps_t);
175 overlay->hwdata->props.src_dim.w = width;
176 overlay->hwdata->props.src_dim.h = height;
177
178 /* overlay->hwdata->chromakey = PgGetOverlayChromaColor(); */
179 overlay->hwdata->chromakey = PgRGB(12, 6, 12); /* very dark pink color */
180 overlay->hwdata->props.color_key = overlay->hwdata->chromakey;
181
182 PhAreaToRect(&overlay->hwdata->CurrentViewPort, &overlay->hwdata->props.viewport);
183
184 overlay->hwdata->props.flags = Pg_SCALER_PROP_DOUBLE_BUFFER;
185
186 if ((overlay->hwdata->ischromakey)&&(overlay->hwdata->chromakey))
187 {
188 overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE;
189 overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_SPECIFY_KEY_MASK;
190 }
191 else
192 {
193 overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_CHROMA_ENABLE;
194 }
195
196 rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &overlay->hwdata->props);
197
198 switch(rtncode)
199 {
200 case -1: SDL_SetError("PgConfigScalerChannel failed\n");
201 SDL_FreeYUVOverlay(overlay);
202 return NULL;
203 case 1:
204 case 0:
205 default:
206 break;
207 }
208
209 planes = grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
210
211 if(overlay->hwdata->channel->yplane1 != NULL)
212 overlay->hwdata->YStride = overlay->hwdata->channel->yplane1->pitch;
213 if(overlay->hwdata->channel->vplane1 != NULL)
214 overlay->hwdata->UStride = overlay->hwdata->channel->vplane1->pitch;
215 if(overlay->hwdata->channel->uplane1 != NULL)
216 overlay->hwdata->VStride = overlay->hwdata->channel->uplane1->pitch;
217
218 /* check for the validness of all planes */
219 if ((overlay->hwdata->channel->yplane1 == NULL) &&
220 (overlay->hwdata->channel->uplane1 == NULL) &&
221 (overlay->hwdata->channel->vplane1 == NULL))
222 {
223 SDL_FreeYUVOverlay(overlay);
224 SDL_SetError("PgConfigScaler() returns all planes equal NULL\n");
225 return NULL;
226 }
227 /*
228 overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
229
230 if (overlay->hwdata->current==0)
231 {
232 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
233 }
234 else
235 {
236 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
237 }
238 */
239 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
240
241 /*
242 overlay->hwdata->locked = 1;
243 */
244
245 /* Find the pitch and offset values for the overlay */
246 overlay->planes = planes;
247 overlay->pitches = SDL_calloc(overlay->planes, sizeof(Uint16));
248 overlay->pixels = SDL_calloc(overlay->planes, sizeof(Uint8*));
249 if (!overlay->pitches || !overlay->pixels)
250 {
251 SDL_OutOfMemory();
252 SDL_FreeYUVOverlay(overlay);
253 return(NULL);
254 }
255
256 if (overlay->planes > 0)
257 {
258 overlay->pitches[0] = overlay->hwdata->channel->yplane1->pitch;
259 overlay->pixels[0] = overlay->hwdata->CurrentFrameData->Y;
260 }
261 if (overlay->planes > 1)
262 {
263 overlay->pitches[1] = overlay->hwdata->channel->vplane1->pitch;
264 overlay->pixels[1] = overlay->hwdata->CurrentFrameData->U;
265 }
266 if (overlay->planes > 2)
267 {
268 overlay->pitches[2] = overlay->hwdata->channel->uplane1->pitch;
269 overlay->pixels[2] = overlay->hwdata->CurrentFrameData->V;
270 }
271
272 overlay->hwdata->State = OVERLAY_STATE_ACTIVE;
273 overlay->hwdata->scaler_on = 0;
274 overlay->hw_overlay = 1;
275
276 current_overlay=overlay;
277
278 return overlay;
279 }
280
ph_LockYUVOverlay(_THIS,SDL_Overlay * overlay)281 int ph_LockYUVOverlay(_THIS, SDL_Overlay* overlay)
282 {
283 if (overlay == NULL)
284 {
285 return -1;
286 }
287
288 overlay->hwdata->locked = 1;
289
290 /* overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
291 if (overlay->hwdata->current == -1)
292 {
293 SDL_SetError("ph_LockYUVOverlay: PgNextFrame() failed, bailing out\n");
294 SDL_FreeYUVOverlay(overlay);
295 return 0;
296 }
297
298 if (overlay->hwdata->current == 0)
299 {
300 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
301 }
302 else
303 {
304 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
305 }
306
307 if (overlay->planes > 0)
308 {
309 overlay->pitches[0] = overlay->hwdata->channel->yplane1->pitch;
310 overlay->pixels[0] = overlay->hwdata->CurrentFrameData->Y;
311 }
312 if (overlay->planes > 1)
313 {
314 overlay->pitches[1] = overlay->hwdata->channel->uplane1->pitch;
315 overlay->pixels[1] = overlay->hwdata->CurrentFrameData->U;
316 }
317 if (overlay->planes > 2)
318 {
319 overlay->pitches[2] = overlay->hwdata->channel->vplane1->pitch;
320 overlay->pixels[2] = overlay->hwdata->CurrentFrameData->V;
321 }
322 */
323
324 return(0);
325 }
326
ph_UnlockYUVOverlay(_THIS,SDL_Overlay * overlay)327 void ph_UnlockYUVOverlay(_THIS, SDL_Overlay* overlay)
328 {
329 if (overlay == NULL)
330 {
331 return;
332 }
333
334 overlay->hwdata->locked = 0;
335 }
336
ph_DisplayYUVOverlay(_THIS,SDL_Overlay * overlay,SDL_Rect * src,SDL_Rect * dst)337 int ph_DisplayYUVOverlay(_THIS, SDL_Overlay* overlay, SDL_Rect* src, SDL_Rect* dst)
338 {
339 int rtncode;
340 PhPoint_t pos;
341 SDL_Rect backrect;
342 PhRect_t windowextent;
343 int winchanged=0;
344
345 if ((overlay == NULL) || (overlay->hwdata==NULL))
346 {
347 return -1;
348 }
349
350 if (overlay->hwdata->State == OVERLAY_STATE_UNINIT)
351 {
352 return -1;
353 }
354
355 PtGetAbsPosition(window, &pos.x, &pos.y);
356 if ((pos.x!=overlay->hwdata->CurrentWindowPos.x) ||
357 (pos.y!=overlay->hwdata->CurrentWindowPos.y))
358 {
359 winchanged=1;
360 overlay->hwdata->CurrentWindowPos.x=pos.x;
361 overlay->hwdata->CurrentWindowPos.y=pos.y;
362 }
363
364 /* If CurrentViewPort position/size has been changed, then move/resize the viewport */
365 if ((overlay->hwdata->CurrentViewPort.pos.x != dst->x) ||
366 (overlay->hwdata->CurrentViewPort.pos.y != dst->y) ||
367 (overlay->hwdata->CurrentViewPort.size.w != dst->w) ||
368 (overlay->hwdata->CurrentViewPort.size.h != dst->h) ||
369 (overlay->hwdata->scaler_on==0) || (winchanged==1) ||
370 (overlay->hwdata->forcedredraw==1))
371 {
372
373 if (overlay->hwdata->ischromakey==1)
374 {
375 /* restore screen behind the overlay/chroma color. */
376 backrect.x=overlay->hwdata->CurrentViewPort.pos.x;
377 backrect.y=overlay->hwdata->CurrentViewPort.pos.y;
378 backrect.w=overlay->hwdata->CurrentViewPort.size.w;
379 backrect.h=overlay->hwdata->CurrentViewPort.size.h;
380 this->UpdateRects(this, 1, &backrect);
381
382 /* Draw the new rectangle of the chroma color at the viewport position */
383 PgSetFillColor(overlay->hwdata->chromakey);
384 PgDrawIRect(dst->x, dst->y, dst->x+dst->w-1, dst->y+dst->h-1, Pg_DRAW_FILL);
385 PgFlush();
386 }
387
388 overlay->hwdata->props.flags |= Pg_SCALER_PROP_SCALER_ENABLE;
389 overlay->hwdata->scaler_on = 1;
390
391 PhWindowQueryVisible(Ph_QUERY_CONSOLE, 0, PtWidgetRid(window), &windowextent);
392 overlay->hwdata->CurrentViewPort.pos.x = pos.x-windowextent.ul.x+dst->x;
393 overlay->hwdata->CurrentViewPort.pos.y = pos.y-windowextent.ul.y+dst->y;
394 overlay->hwdata->CurrentViewPort.size.w = dst->w;
395 overlay->hwdata->CurrentViewPort.size.h = dst->h;
396 PhAreaToRect(&overlay->hwdata->CurrentViewPort, &overlay->hwdata->props.viewport);
397 overlay->hwdata->CurrentViewPort.pos.x = dst->x;
398 overlay->hwdata->CurrentViewPort.pos.y = dst->y;
399
400 rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
401
402 switch(rtncode)
403 {
404 case -1:
405 SDL_SetError("PgConfigScalerChannel() function failed\n");
406 SDL_FreeYUVOverlay(overlay);
407 return -1;
408 case 1:
409 grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
410 break;
411 case 0:
412 default:
413 break;
414 }
415 }
416
417
418 /*
419 if (overlay->hwdata->locked==0)
420 {
421 overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
422 if (overlay->hwdata->current == -1)
423 {
424 SDL_SetError("ph_LockYUVOverlay: PgNextFrame() failed, bailing out\n");
425 SDL_FreeYUVOverlay(overlay);
426 return 0;
427 }
428
429 if (overlay->hwdata->current == 0)
430 {
431 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
432 }
433 else
434 {
435 overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
436 }
437
438 if (overlay->planes > 0)
439 {
440 overlay->pitches[0] = overlay->hwdata->channel->yplane1->pitch;
441 overlay->pixels[0] = overlay->hwdata->CurrentFrameData->Y;
442 }
443 if (overlay->planes > 1)
444 {
445 overlay->pitches[1] = overlay->hwdata->channel->uplane1->pitch;
446 overlay->pixels[1] = overlay->hwdata->CurrentFrameData->U;
447 }
448 if (overlay->planes > 2)
449 {
450 overlay->pitches[2] = overlay->hwdata->channel->vplane1->pitch;
451 overlay->pixels[2] = overlay->hwdata->CurrentFrameData->V;
452 }
453 }
454 */
455
456 return 0;
457 }
458
ph_FreeYUVOverlay(_THIS,SDL_Overlay * overlay)459 void ph_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
460 {
461 SDL_Rect backrect;
462
463 if (overlay == NULL)
464 {
465 return;
466 }
467
468 if (overlay->hwdata == NULL)
469 {
470 return;
471 }
472
473 current_overlay=NULL;
474
475 /* restore screen behind the overlay/chroma color. */
476 backrect.x=overlay->hwdata->CurrentViewPort.pos.x;
477 backrect.y=overlay->hwdata->CurrentViewPort.pos.y;
478 backrect.w=overlay->hwdata->CurrentViewPort.size.w;
479 backrect.h=overlay->hwdata->CurrentViewPort.size.h;
480 this->UpdateRects(this, 1, &backrect);
481
482 /* it is need for some buggy drivers, that can't hide overlay before */
483 /* freeing buffer, so we got trash on the srceen */
484 overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_SCALER_ENABLE;
485 PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
486
487 overlay->hwdata->scaler_on = 0;
488 overlay->hwdata->State = OVERLAY_STATE_UNINIT;
489
490 if (overlay->hwdata->channel != NULL)
491 {
492 PgDestroyVideoChannel(overlay->hwdata->channel);
493 overlay->hwdata->channel = NULL;
494 return;
495 }
496
497 overlay->hwdata->CurrentFrameData = NULL;
498
499 SDL_free(overlay->hwdata->FrameData0);
500 SDL_free(overlay->hwdata->FrameData1);
501 overlay->hwdata->FrameData0 = NULL;
502 overlay->hwdata->FrameData1 = NULL;
503 SDL_free(overlay->hwdata);
504 }
505