1 /*****************************************************************************
2 * video_output.c : video output thread
3 * This module describes the programming interface for video output threads.
4 * It includes functions allowing to open a new thread, send pictures to a
5 * thread, and destroy a previously oppened video output thread.
6 *****************************************************************************
7 * Copyright (C) 2000 VideoLAN
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public
22 * License along with this program; if not, write to the
23 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
32 #include <errno.h> /* ENOMEM */
33 #include <stdlib.h> /* free() */
34 #include <stdio.h> /* sprintf() */
35 #include <string.h> /* strerror() */
43 #include "video_output.h"
44 #include "video_text.h"
45 #include "video_spu.h"
46 #include "video_yuv.h"
51 /*****************************************************************************
53 *****************************************************************************/
54 static int BinaryLog ( u32 i );
55 static void MaskToShift ( int *pi_left, int *pi_right, u32 i_mask );
56 static int InitThread ( vout_thread_t *p_vout );
57 static void RunThread ( vout_thread_t *p_vout );
58 static void ErrorThread ( vout_thread_t *p_vout );
59 static void EndThread ( vout_thread_t *p_vout );
60 static void DestroyThread ( vout_thread_t *p_vout, int i_status );
61 static void Print ( vout_thread_t *p_vout, int i_x, int i_y,
62 int i_h_align, int i_v_align,
63 unsigned char *psz_text );
64 static void SetBufferArea ( vout_thread_t *p_vout, int i_x, int i_y,
66 static void SetBufferPicture ( vout_thread_t *p_vout, picture_t *p_pic );
67 static void RenderPicture ( vout_thread_t *p_vout, picture_t *p_pic );
68 static void RenderPictureInfo ( vout_thread_t *p_vout, picture_t *p_pic );
69 static void RenderSubPicture ( vout_thread_t *p_vout,
70 subpicture_t *p_subpic );
71 static void RenderInterface ( vout_thread_t *p_vout );
72 static int RenderIdle ( vout_thread_t *p_vout );
73 static void RenderInfo ( vout_thread_t *p_vout );
74 static void Synchronize ( vout_thread_t *p_vout, s64 i_delay );
75 static int Manage ( vout_thread_t *p_vout );
76 static int Align ( vout_thread_t *p_vout, int *pi_x,
77 int *pi_y, int i_width, int i_height,
78 int i_h_align, int i_v_align );
79 static void SetPalette ( p_vout_thread_t p_vout, u16 *red,
80 u16 *green, u16 *blue, u16 *transp );
82 /*****************************************************************************
83 * vout_CreateThread: creates a new video output thread
84 *****************************************************************************
85 * This function creates a new video output thread, and returns a pointer
86 * to its description. On error, it returns NULL.
87 * If pi_status is NULL, then the function will block until the thread is ready.
88 * If not, it will be updated using one of the THREAD_* constants.
89 *****************************************************************************/
90 vout_thread_t * vout_CreateThread ( char *psz_display, int i_root_window,
91 int i_width, int i_height, int *pi_status, int i_method )
93 vout_thread_t * p_vout; /* thread descriptor */
94 int i_status; /* thread status */
95 int i_index; /* index for array initialization */
98 /* Allocate descriptor */
100 p_vout = (vout_thread_t *) malloc( sizeof(vout_thread_t) );
103 intf_ErrMsg( "error: %s\n", strerror(ENOMEM) );
107 /* Request an interface plugin */
108 psz_method = main_GetPszVariable( VOUT_METHOD_VAR, VOUT_DEFAULT_METHOD );
110 if( RequestPlugin( &p_vout->vout_plugin, "vout", psz_method ) < 0 )
112 intf_ErrMsg( "error: could not open video plugin vout_%s.so\n", psz_method );
118 p_vout->p_sys_create = GetPluginFunction( p_vout->vout_plugin, "vout_SysCreate" );
119 p_vout->p_sys_init = GetPluginFunction( p_vout->vout_plugin, "vout_SysInit" );
120 p_vout->p_sys_end = GetPluginFunction( p_vout->vout_plugin, "vout_SysEnd" );
121 p_vout->p_sys_destroy = GetPluginFunction( p_vout->vout_plugin, "vout_SysDestroy" );
122 p_vout->p_sys_manage = GetPluginFunction( p_vout->vout_plugin, "vout_SysManage" );
123 p_vout->p_sys_display = GetPluginFunction( p_vout->vout_plugin, "vout_SysDisplay" );
125 /* Initialize thread properties - thread id and locks will be initialized
129 p_vout->b_active = 0;
130 p_vout->pi_status = (pi_status != NULL) ? pi_status : &i_status;
131 *p_vout->pi_status = THREAD_CREATE;
133 /* Initialize some fields used by the system-dependant method - these fields will
134 * probably be modified by the method, and are only preferences */
135 p_vout->i_changes = 0;
136 p_vout->i_width = i_width;
137 p_vout->i_height = i_height;
138 p_vout->i_bytes_per_line = i_width * 2;
139 p_vout->i_screen_depth = 15;
140 p_vout->i_bytes_per_pixel = 2;
141 p_vout->f_gamma = VOUT_GAMMA;
143 p_vout->b_grayscale = main_GetIntVariable( VOUT_GRAYSCALE_VAR, VOUT_GRAYSCALE_DEFAULT );
145 p_vout->b_interface = 0;
148 p_vout->p_set_palette = SetPalette;
150 intf_DbgMsg("wished configuration: %dx%d, %d/%d bpp (%d Bpl)\n",
151 p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
152 p_vout->i_bytes_per_pixel * 8, p_vout->i_bytes_per_line );
154 /* Initialize idle screen */
155 p_vout->last_display_date = mdate();
156 p_vout->last_display_date = 0;
157 p_vout->last_idle_date = 0;
160 /* Initialize statistics fields */
161 p_vout->render_time = 0;
162 p_vout->c_fps_samples = 0;
165 /* Initialize buffer index */
166 p_vout->i_buffer_index = 0;
168 /* Initialize pictures and subpictures - translation tables and functions
169 * will be initialized later in InitThread */
170 for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++)
172 p_vout->p_picture[i_index].i_type = EMPTY_PICTURE;
173 p_vout->p_picture[i_index].i_status = FREE_PICTURE;
175 for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++)
177 p_vout->p_subpicture[i_index].i_type = EMPTY_SUBPICTURE;
178 p_vout->p_subpicture[i_index].i_status= FREE_SUBPICTURE;
180 p_vout->i_pictures = 0;
182 /* Initialize synchronization informations */
183 p_vout->i_synchro_level = VOUT_SYNCHRO_LEVEL_START;
185 /* Create and initialize system-dependant method - this function issues its
186 * own error messages */
187 if( p_vout->p_sys_create( p_vout, psz_display, i_root_window ) )
189 TrashPlugin( p_vout->vout_plugin );
193 intf_DbgMsg("actual configuration: %dx%d, %d/%d bpp (%d Bpl), masks: 0x%x/0x%x/0x%x\n",
194 p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
195 p_vout->i_bytes_per_pixel * 8, p_vout->i_bytes_per_line,
196 p_vout->i_red_mask, p_vout->i_green_mask, p_vout->i_blue_mask );
198 /* Calculate shifts from system-updated masks */
199 MaskToShift( &p_vout->i_red_lshift, &p_vout->i_red_rshift, p_vout->i_red_mask );
200 MaskToShift( &p_vout->i_green_lshift, &p_vout->i_green_rshift, p_vout->i_green_mask );
201 MaskToShift( &p_vout->i_blue_lshift, &p_vout->i_blue_rshift, p_vout->i_blue_mask );
203 /* Set some useful colors */
204 p_vout->i_white_pixel = RGB2PIXEL( p_vout, 255, 255, 255 );
205 p_vout->i_black_pixel = RGB2PIXEL( p_vout, 0, 0, 0 );
206 p_vout->i_gray_pixel = RGB2PIXEL( p_vout, 128, 128, 128 );
207 p_vout->i_blue_pixel = RGB2PIXEL( p_vout, 0, 0, 50 );
209 /* Load fonts - fonts must be initialized after the system method since
210 * they may be dependant on screen depth and other thread properties */
211 p_vout->p_default_font = vout_LoadFont( DATA_PATH "/" VOUT_DEFAULT_FONT );
212 if( p_vout->p_default_font == NULL )
214 p_vout->p_default_font = vout_LoadFont( "share/" VOUT_DEFAULT_FONT );
216 if( p_vout->p_default_font == NULL )
218 p_vout->p_sys_destroy( p_vout );
219 TrashPlugin( p_vout->vout_plugin );
223 p_vout->p_large_font = vout_LoadFont( DATA_PATH "/" VOUT_LARGE_FONT );
224 if( p_vout->p_large_font == NULL )
226 p_vout->p_large_font = vout_LoadFont( "share/" VOUT_LARGE_FONT );
228 if( p_vout->p_large_font == NULL )
230 vout_UnloadFont( p_vout->p_default_font );
231 p_vout->p_sys_destroy( p_vout );
232 TrashPlugin( p_vout->vout_plugin );
237 /* Create thread and set locks */
238 vlc_mutex_init( &p_vout->picture_lock );
239 vlc_mutex_init( &p_vout->subpicture_lock );
240 vlc_mutex_init( &p_vout->change_lock );
241 vlc_mutex_lock( &p_vout->change_lock );
242 if( vlc_thread_create( &p_vout->thread_id, "video output", (void *) RunThread, (void *) p_vout) )
244 intf_ErrMsg("error: %s\n", strerror(ENOMEM));
245 vout_UnloadFont( p_vout->p_default_font );
246 vout_UnloadFont( p_vout->p_large_font );
247 p_vout->p_sys_destroy( p_vout );
248 TrashPlugin( p_vout->vout_plugin );
253 intf_Msg("Video display initialized (%dx%d, %d/%d bpp)\n", p_vout->i_width,
254 p_vout->i_height, p_vout->i_screen_depth, p_vout->i_bytes_per_pixel * 8 );
256 /* If status is NULL, wait until the thread is created */
257 if( pi_status == NULL )
261 msleep( THREAD_SLEEP );
262 }while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR)
263 && (i_status != THREAD_FATAL) );
264 if( i_status != THREAD_READY )
272 /*****************************************************************************
273 * vout_DestroyThread: destroys a previously created thread
274 *****************************************************************************
275 * Destroy a terminated thread.
276 * The function will request a destruction of the specified thread. If pi_error
277 * is NULL, it will return once the thread is destroyed. Else, it will be
278 * update using one of the THREAD_* constants.
279 *****************************************************************************/
280 void vout_DestroyThread( vout_thread_t *p_vout, int *pi_status )
282 int i_status; /* thread status */
286 p_vout->pi_status = (pi_status != NULL) ? pi_status : &i_status;
287 *p_vout->pi_status = THREAD_DESTROY;
289 /* Request thread destruction */
292 /* If status is NULL, wait until thread has been destroyed */
293 if( pi_status == NULL )
297 msleep( THREAD_SLEEP );
298 }while( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR)
299 && (i_status != THREAD_FATAL) );
303 /*****************************************************************************
304 * vout_DisplaySubPicture: display a subpicture unit
305 *****************************************************************************
306 * Remove the reservation flag of an subpicture, which will cause it to be ready
307 * for display. The picture does not need to be locked, since it is ignored by
308 * the output thread if is reserved.
309 *****************************************************************************/
310 void vout_DisplaySubPicture( vout_thread_t *p_vout, subpicture_t *p_subpic )
313 char psz_begin_date[MSTRTIME_MAX_SIZE]; /* buffer for date string */
314 char psz_end_date[MSTRTIME_MAX_SIZE]; /* buffer for date string */
318 /* Check if status is valid */
319 if( p_subpic->i_status != RESERVED_SUBPICTURE )
321 intf_DbgMsg("error: subpicture %p has invalid status %d\n", p_subpic,
322 p_subpic->i_status );
326 /* Remove reservation flag */
327 p_subpic->i_status = READY_SUBPICTURE;
330 /* Send subpicture informations */
331 intf_DbgMsg("subpicture %p: type=%d, begin date=%s, end date=%s\n",
332 p_subpic, p_subpic->i_type,
333 mstrtime( psz_begin_date, p_subpic->begin_date ),
334 mstrtime( psz_end_date, p_subpic->end_date ) );
338 /*****************************************************************************
339 * vout_CreateSubPicture: allocate an subpicture in the video output heap.
340 *****************************************************************************
341 * This function create a reserved subpicture in the video output heap.
342 * A null pointer is returned if the function fails. This method provides an
343 * already allocated zone of memory in the spu data fields. It needs locking
344 * since several pictures can be created by several producers threads.
345 *****************************************************************************/
346 subpicture_t *vout_CreateSubPicture( vout_thread_t *p_vout, int i_type,
349 int i_subpic; /* subpicture index */
350 subpicture_t * p_free_subpic = NULL; /* first free subpicture */
351 subpicture_t * p_destroyed_subpic = NULL; /* first destroyed subpic */
354 vlc_mutex_lock( &p_vout->subpicture_lock );
357 * Look for an empty place
359 for( i_subpic = 0; i_subpic < VOUT_MAX_SUBPICTURES; i_subpic++ )
361 if( p_vout->p_subpicture[i_subpic].i_status == DESTROYED_SUBPICTURE )
363 /* Subpicture is marked for destruction, but is still allocated */
364 if( (p_vout->p_subpicture[i_subpic].i_type == i_type) &&
365 (p_vout->p_subpicture[i_subpic].i_size >= i_size) )
367 /* Memory size do match or is smaller : memory will not be
368 * reallocated, and function can end immediately - this is
369 * the best possible case, since no memory allocation needs
371 p_vout->p_subpicture[i_subpic].i_status = RESERVED_SUBPICTURE;
373 intf_DbgMsg("subpicture %p (in destroyed subpicture slot)\n",
374 &p_vout->p_subpicture[i_subpic] );
376 vlc_mutex_unlock( &p_vout->subpicture_lock );
377 return( &p_vout->p_subpicture[i_subpic] );
379 else if( p_destroyed_subpic == NULL )
381 /* Memory size do not match, but subpicture index will be kept in
382 * case no other place are left */
383 p_destroyed_subpic = &p_vout->p_subpicture[i_subpic];
386 else if( (p_free_subpic == NULL) &&
387 (p_vout->p_subpicture[i_subpic].i_status == FREE_SUBPICTURE ))
389 /* Subpicture is empty and ready for allocation */
390 p_free_subpic = &p_vout->p_subpicture[i_subpic];
394 /* If no free subpicture is available, use a destroyed subpicture */
395 if( (p_free_subpic == NULL) && (p_destroyed_subpic != NULL ) )
397 /* No free subpicture or matching destroyed subpicture has been
398 * found, but a destroyed subpicture is still avalaible */
399 free( p_destroyed_subpic->p_data );
400 p_free_subpic = p_destroyed_subpic;
406 if( p_free_subpic != NULL )
408 /* Allocate memory */
411 case TEXT_SUBPICTURE: /* text subpicture */
412 p_free_subpic->p_data = malloc( i_size + 1 );
414 case DVD_SUBPICTURE: /* DVD subpicture unit */
415 p_free_subpic->p_data = malloc( i_size );
419 intf_DbgMsg("error: unknown subpicture type %d\n", i_type );
420 p_free_subpic->p_data = NULL;
425 if( p_free_subpic->p_data != NULL )
426 { /* Copy subpicture informations, set some default values */
427 p_free_subpic->i_type = i_type;
428 p_free_subpic->i_status = RESERVED_SUBPICTURE;
429 p_free_subpic->i_size = i_size;
430 p_free_subpic->i_x = 0;
431 p_free_subpic->i_y = 0;
432 p_free_subpic->i_width = 0;
433 p_free_subpic->i_height = 0;
434 p_free_subpic->i_horizontal_align = CENTER_RALIGN;
435 p_free_subpic->i_vertical_align = CENTER_RALIGN;
439 /* Memory allocation failed : set subpicture as empty */
440 p_free_subpic->i_type = EMPTY_SUBPICTURE;
441 p_free_subpic->i_status = FREE_SUBPICTURE;
442 p_free_subpic = NULL;
443 intf_ErrMsg("warning: %s\n", strerror( ENOMEM ) );
447 intf_DbgMsg("subpicture %p (in free subpicture slot)\n", p_free_subpic );
449 vlc_mutex_unlock( &p_vout->subpicture_lock );
450 return( p_free_subpic );
453 /* No free or destroyed subpicture could be found */
454 intf_DbgMsg( "warning: heap is full\n" );
455 vlc_mutex_unlock( &p_vout->subpicture_lock );
459 /*****************************************************************************
460 * vout_DestroySubPicture: remove a subpicture from the heap
461 *****************************************************************************
462 * This function frees a previously reserved subpicture.
463 * It is meant to be used when the construction of a picture aborted.
464 * This function does not need locking since reserved subpictures are ignored
465 * by the output thread.
466 *****************************************************************************/
467 void vout_DestroySubPicture( vout_thread_t *p_vout, subpicture_t *p_subpic )
470 /* Check if status is valid */
471 if( p_subpic->i_status != RESERVED_SUBPICTURE )
473 intf_DbgMsg("error: subpicture %p has invalid status %d\n",
474 p_subpic, p_subpic->i_status );
478 p_subpic->i_status = DESTROYED_SUBPICTURE;
481 intf_DbgMsg("subpicture %p\n", p_subpic);
485 /*****************************************************************************
486 * vout_DisplayPicture: display a picture
487 *****************************************************************************
488 * Remove the reservation flag of a picture, which will cause it to be ready for
489 * display. The picture won't be displayed until vout_DatePicture has been
491 *****************************************************************************/
492 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
494 vlc_mutex_lock( &p_vout->picture_lock );
495 switch( p_pic->i_status )
497 case RESERVED_PICTURE:
498 p_pic->i_status = RESERVED_DISP_PICTURE;
500 case RESERVED_DATED_PICTURE:
501 p_pic->i_status = READY_PICTURE;
505 intf_DbgMsg("error: picture %p has invalid status %d\n", p_pic, p_pic->i_status );
511 intf_DbgMsg("picture %p\n", p_pic);
513 vlc_mutex_unlock( &p_vout->picture_lock );
516 /*****************************************************************************
517 * vout_DatePicture: date a picture
518 *****************************************************************************
519 * Remove the reservation flag of a picture, which will cause it to be ready for
520 * display. The picture won't be displayed until vout_DisplayPicture has been
522 *****************************************************************************/
523 void vout_DatePicture( vout_thread_t *p_vout, picture_t *p_pic, mtime_t date )
526 char psz_date[MSTRTIME_MAX_SIZE]; /* date */
529 vlc_mutex_lock( &p_vout->picture_lock );
531 switch( p_pic->i_status )
533 case RESERVED_PICTURE:
534 p_pic->i_status = RESERVED_DATED_PICTURE;
536 case RESERVED_DISP_PICTURE:
537 p_pic->i_status = READY_PICTURE;
541 intf_DbgMsg("error: picture %p has invalid status %d\n", p_pic, p_pic->i_status );
547 intf_DbgMsg("picture %p, display date: %s\n", p_pic, mstrtime( psz_date, p_pic->date) );
549 vlc_mutex_unlock( &p_vout->picture_lock );
552 /*****************************************************************************
553 * vout_CreatePicture: allocate a picture in the video output heap.
554 *****************************************************************************
555 * This function create a reserved image in the video output heap.
556 * A null pointer is returned if the function fails. This method provides an
557 * already allocated zone of memory in the picture data fields. It needs locking
558 * since several pictures can be created by several producers threads.
559 *****************************************************************************/
560 picture_t *vout_CreatePicture( vout_thread_t *p_vout, int i_type,
561 int i_width, int i_height )
563 int i_picture; /* picture index */
564 int i_chroma_width = 0; /* chroma width */
565 picture_t * p_free_picture = NULL; /* first free picture */
566 picture_t * p_destroyed_picture = NULL; /* first destroyed picture */
569 vlc_mutex_lock( &p_vout->picture_lock );
572 * Look for an empty place
574 for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
576 if( p_vout->p_picture[i_picture].i_status == DESTROYED_PICTURE )
578 /* Picture is marked for destruction, but is still allocated - note
579 * that if width and type are the same for two pictures, chroma_width
580 * should also be the same */
581 if( (p_vout->p_picture[i_picture].i_type == i_type) &&
582 (p_vout->p_picture[i_picture].i_height == i_height) &&
583 (p_vout->p_picture[i_picture].i_width == i_width) )
585 /* Memory size do match : memory will not be reallocated, and function
586 * can end immediately - this is the best possible case, since no
587 * memory allocation needs to be done */
588 p_vout->p_picture[i_picture].i_status = RESERVED_PICTURE;
589 p_vout->i_pictures++;
591 intf_DbgMsg("picture %p (in destroyed picture slot)\n",
592 &p_vout->p_picture[i_picture] );
594 vlc_mutex_unlock( &p_vout->picture_lock );
595 return( &p_vout->p_picture[i_picture] );
597 else if( p_destroyed_picture == NULL )
599 /* Memory size do not match, but picture index will be kept in
600 * case no other place are left */
601 p_destroyed_picture = &p_vout->p_picture[i_picture];
604 else if( (p_free_picture == NULL) &&
605 (p_vout->p_picture[i_picture].i_status == FREE_PICTURE ))
607 /* Picture is empty and ready for allocation */
608 p_free_picture = &p_vout->p_picture[i_picture];
612 /* If no free picture is available, use a destroyed picture */
613 if( (p_free_picture == NULL) && (p_destroyed_picture != NULL ) )
615 /* No free picture or matching destroyed picture has been found, but
616 * a destroyed picture is still avalaible */
617 free( p_destroyed_picture->p_data );
618 p_free_picture = p_destroyed_picture;
624 if( p_free_picture != NULL )
626 /* Allocate memory */
629 case YUV_420_PICTURE: /* YUV 420: 1,1/4,1/4 samples per pixel */
630 i_chroma_width = i_width / 2;
631 p_free_picture->p_data = malloc( i_height * i_chroma_width * 3 * sizeof( yuv_data_t ) );
632 p_free_picture->p_y = (yuv_data_t *)p_free_picture->p_data;
633 p_free_picture->p_u = (yuv_data_t *)p_free_picture->p_data +i_height*i_chroma_width*4/2;
634 p_free_picture->p_v = (yuv_data_t *)p_free_picture->p_data +i_height*i_chroma_width*5/2;
636 case YUV_422_PICTURE: /* YUV 422: 1,1/2,1/2 samples per pixel */
637 i_chroma_width = i_width / 2;
638 p_free_picture->p_data = malloc( i_height * i_chroma_width * 4 * sizeof( yuv_data_t ) );
639 p_free_picture->p_y = (yuv_data_t *)p_free_picture->p_data;
640 p_free_picture->p_u = (yuv_data_t *)p_free_picture->p_data +i_height*i_chroma_width*2;
641 p_free_picture->p_v = (yuv_data_t *)p_free_picture->p_data +i_height*i_chroma_width*3;
643 case YUV_444_PICTURE: /* YUV 444: 1,1,1 samples per pixel */
644 i_chroma_width = i_width;
645 p_free_picture->p_data = malloc( i_height * i_chroma_width * 3 * sizeof( yuv_data_t ) );
646 p_free_picture->p_y = (yuv_data_t *)p_free_picture->p_data;
647 p_free_picture->p_u = (yuv_data_t *)p_free_picture->p_data +i_height*i_chroma_width;
648 p_free_picture->p_v = (yuv_data_t *)p_free_picture->p_data +i_height*i_chroma_width*2;
652 intf_DbgMsg("error: unknown picture type %d\n", i_type );
653 p_free_picture->p_data = NULL;
658 if( p_free_picture->p_data != NULL )
660 /* Copy picture informations, set some default values */
661 p_free_picture->i_type = i_type;
662 p_free_picture->i_status = RESERVED_PICTURE;
663 p_free_picture->i_matrix_coefficients = 1;
664 p_free_picture->i_width = i_width;
665 p_free_picture->i_height = i_height;
666 p_free_picture->i_chroma_width = i_chroma_width;
667 p_free_picture->i_display_horizontal_offset = 0;
668 p_free_picture->i_display_vertical_offset = 0;
669 p_free_picture->i_display_width = i_width;
670 p_free_picture->i_display_height = i_height;
671 p_free_picture->i_aspect_ratio = AR_SQUARE_PICTURE;
672 p_free_picture->i_refcount = 0;
673 p_vout->i_pictures++;
677 /* Memory allocation failed : set picture as empty */
678 p_free_picture->i_type = EMPTY_PICTURE;
679 p_free_picture->i_status = FREE_PICTURE;
680 p_free_picture = NULL;
681 intf_ErrMsg("warning: %s\n", strerror( ENOMEM ) );
685 intf_DbgMsg("picture %p (in free picture slot)\n", p_free_picture );
687 vlc_mutex_unlock( &p_vout->picture_lock );
688 return( p_free_picture );
691 /* No free or destroyed picture could be found */
692 intf_DbgMsg( "warning: heap is full\n" );
693 vlc_mutex_unlock( &p_vout->picture_lock );
697 /*****************************************************************************
698 * vout_DestroyPicture: remove a permanent or reserved picture from the heap
699 *****************************************************************************
700 * This function frees a previously reserved picture or a permanent
701 * picture. It is meant to be used when the construction of a picture aborted.
702 * Note that the picture will be destroyed even if it is linked !
703 *****************************************************************************/
704 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
706 vlc_mutex_lock( &p_vout->picture_lock );
709 /* Check if picture status is valid */
710 if( (p_pic->i_status != RESERVED_PICTURE) &&
711 (p_pic->i_status != RESERVED_DATED_PICTURE) &&
712 (p_pic->i_status != RESERVED_DISP_PICTURE) )
714 intf_DbgMsg("error: picture %p has invalid status %d\n", p_pic, p_pic->i_status );
718 p_pic->i_status = DESTROYED_PICTURE;
719 p_vout->i_pictures--;
722 intf_DbgMsg("picture %p\n", p_pic);
724 vlc_mutex_unlock( &p_vout->picture_lock );
727 /*****************************************************************************
728 * vout_LinkPicture: increment reference counter of a picture
729 *****************************************************************************
730 * This function increment the reference counter of a picture in the video
731 * heap. It needs a lock since several producer threads can access the picture.
732 *****************************************************************************/
733 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
735 vlc_mutex_lock( &p_vout->picture_lock );
739 intf_DbgMsg("picture %p refcount=%d\n", p_pic, p_pic->i_refcount );
742 vlc_mutex_unlock( &p_vout->picture_lock );
745 /*****************************************************************************
746 * vout_UnlinkPicture: decrement reference counter of a picture
747 *****************************************************************************
748 * This function decrement the reference counter of a picture in the video heap.
749 *****************************************************************************/
750 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
752 vlc_mutex_lock( &p_vout->picture_lock );
756 if( p_pic->i_refcount < 0 )
758 intf_DbgMsg("error: refcount < 0\n");
759 p_pic->i_refcount = 0;
763 if( (p_pic->i_refcount == 0) && (p_pic->i_status == DISPLAYED_PICTURE) )
765 p_pic->i_status = DESTROYED_PICTURE;
766 p_vout->i_pictures--;
770 intf_DbgMsg("picture %p refcount=%d\n", p_pic, p_pic->i_refcount );
773 vlc_mutex_unlock( &p_vout->picture_lock );
776 /*****************************************************************************
777 * vout_SetBuffers: set buffers adresses
778 *****************************************************************************
779 * This function is called by system drivers to set buffers video memory
781 *****************************************************************************/
782 void vout_SetBuffers( vout_thread_t *p_vout, void *p_buf1, void *p_buf2 )
784 /* No picture previously */
785 p_vout->p_buffer[0].i_pic_x = 0;
786 p_vout->p_buffer[0].i_pic_y = 0;
787 p_vout->p_buffer[0].i_pic_width = 0;
788 p_vout->p_buffer[0].i_pic_height = 0;
789 p_vout->p_buffer[1].i_pic_x = 0;
790 p_vout->p_buffer[1].i_pic_y = 0;
791 p_vout->p_buffer[1].i_pic_width = 0;
792 p_vout->p_buffer[1].i_pic_height = 0;
794 /* The first area covers all the screen */
795 p_vout->p_buffer[0].i_areas = 1;
796 p_vout->p_buffer[0].pi_area_begin[0] = 0;
797 p_vout->p_buffer[0].pi_area_end[0] = p_vout->i_height - 1;
798 p_vout->p_buffer[1].i_areas = 1;
799 p_vout->p_buffer[1].pi_area_begin[0] = 0;
800 p_vout->p_buffer[1].pi_area_end[0] = p_vout->i_height - 1;
803 p_vout->p_buffer[0].p_data = p_buf1;
804 p_vout->p_buffer[1].p_data = p_buf2;
807 /*****************************************************************************
808 * vout_Pixel2RGB: return red, green and blue from pixel value
809 *****************************************************************************
810 * Return color values, in 0-255 range, of the decomposition of a pixel. This
811 * is a slow routine and should only be used for initialization phase.
812 *****************************************************************************/
813 void vout_Pixel2RGB( vout_thread_t *p_vout, u32 i_pixel, int *pi_red, int *pi_green, int *pi_blue )
815 *pi_red = i_pixel & p_vout->i_red_mask;
816 *pi_green = i_pixel & p_vout->i_green_mask;
817 *pi_blue = i_pixel & p_vout->i_blue_mask;
820 /* following functions are local */
822 /*****************************************************************************
823 * BinaryLog: computes the base 2 log of a binary value
824 *****************************************************************************
825 * This functions is used by MaskToShift, to get a bit index from a binary
827 *****************************************************************************/
828 static int BinaryLog(u32 i)
853 if (i != ((u32)1 << i_log))
855 intf_ErrMsg("internal error: binary log overflow\n");
861 /*****************************************************************************
862 * MaskToShift: transform a color mask into right and left shifts
863 *****************************************************************************
864 * This function is used for obtaining color shifts from masks.
865 *****************************************************************************/
866 static void MaskToShift( int *pi_left, int *pi_right, u32 i_mask )
868 u32 i_low, i_high; /* lower hand higher bits of the mask */
871 i_low = i_mask & (- i_mask); /* lower bit of the mask */
872 i_high = i_mask + i_low; /* higher bit of the mask */
874 /* Transform bits into an index */
875 i_low = BinaryLog (i_low);
876 i_high = BinaryLog (i_high);
878 /* Update pointers and return */
880 *pi_right = (8 - i_high + i_low);
883 /*****************************************************************************
884 * InitThread: initialize video output thread
885 *****************************************************************************
886 * This function is called from RunThread and performs the second step of the
887 * initialization. It returns 0 on success. Note that the thread's flag are not
888 * modified inside this function.
889 *****************************************************************************/
890 static int InitThread( vout_thread_t *p_vout )
894 *p_vout->pi_status = THREAD_START;
896 /* Initialize output method - this function issues its own error messages */
897 if( p_vout->p_sys_init( p_vout ) )
902 /* Initialize convertion tables and functions */
903 if( vout_InitYUV( p_vout ) )
905 intf_ErrMsg("error: can't allocate YUV translation tables\n");
909 /* Mark thread as running and return */
910 p_vout->b_active = 1;
911 *p_vout->pi_status = THREAD_READY;
912 intf_DbgMsg("thread ready\n");
916 /*****************************************************************************
917 * RunThread: video output thread
918 *****************************************************************************
919 * Video output thread. This function does only returns when the thread is
920 * terminated. It handles the pictures arriving in the video heap and the
921 * display device events.
922 *****************************************************************************/
923 static void RunThread( vout_thread_t *p_vout)
925 /* XXX?? welcome to gore land */
926 static int i_trash_count = 0;
927 static mtime_t last_display_date = 0;
929 int i_index; /* index in heap */
930 mtime_t current_date; /* current date */
931 mtime_t display_date; /* display date */
932 boolean_t b_display; /* display flag */
933 picture_t * p_pic; /* picture pointer */
934 subpicture_t * p_subpic; /* subpicture pointer */
939 p_vout->b_error = InitThread( p_vout );
940 if( p_vout->b_error )
942 DestroyThread( p_vout, THREAD_ERROR );
948 * Main loop - it is not executed if an error occured during
951 while( (!p_vout->b_die) && (!p_vout->b_error) )
953 /* Initialize loop variables */
957 current_date = mdate();
960 * Find the picture to display - this operation does not need lock,
961 * since only READY_PICTUREs are handled
963 for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++ )
965 if( (p_vout->p_picture[i_index].i_status == READY_PICTURE) &&
967 (p_vout->p_picture[i_index].date < display_date) ) )
969 p_pic = &p_vout->p_picture[i_index];
970 display_date = p_pic->date;
977 /* Computes FPS rate */
978 p_vout->p_fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
982 //fprintf( stderr, "gap : %Ld\n", display_date-last_display_date );
983 last_display_date = display_date;
985 if( display_date < current_date && i_trash_count > 4 )
987 /* Picture is late: it will be destroyed and the thread
988 * will sleep and go to next picture */
990 vlc_mutex_lock( &p_vout->picture_lock );
991 if( p_pic->i_refcount )
993 p_pic->i_status = DISPLAYED_PICTURE;
997 p_pic->i_status = DESTROYED_PICTURE;
998 p_vout->i_pictures--;
1000 intf_DbgMsg( "warning: late picture %p skipped refcount=%d\n", p_pic, p_pic->i_refcount );
1001 vlc_mutex_unlock( &p_vout->picture_lock );
1003 /* Update synchronization information as if display delay
1005 Synchronize( p_vout, display_date - current_date );
1013 if( display_date > current_date + VOUT_DISPLAY_DELAY )
1015 /* A picture is ready to be rendered, but its rendering date
1016 * is far from the current one so the thread will perform an
1017 * empty loop as if no picture were found. The picture state
1024 /* Picture will be displayed, update synchronization
1026 Synchronize( p_vout, display_date - current_date );
1030 * Find the subpictures to display - this operation does not need
1031 * lock, since only READY_SUBPICTURE are handled. If no picture
1032 * has been selected, display_date will depend on the subpicture.
1033 * We get an easily parsable chained list of subpictures which
1034 * ends with NULL since p_subpic was initialized to NULL.
1036 for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++ )
1038 if( p_vout->p_subpicture[i_index].i_status == READY_SUBPICTURE )
1040 p_vout->p_subpicture[i_index].p_next = p_subpic;
1041 p_subpic = &p_vout->p_subpicture[i_index];
1046 * Perform rendering, sleep and display rendered picture
1048 if( p_pic ) /* picture and perhaps subpicture */
1050 b_display = p_vout->b_active;
1051 p_vout->last_display_date = display_date;
1055 /* Set picture dimensions and clear buffer */
1056 SetBufferPicture( p_vout, p_pic );
1058 /* Render picture and informations */
1059 RenderPicture( p_vout, p_pic );
1060 if( p_vout->b_info )
1062 RenderPictureInfo( p_vout, p_pic );
1063 RenderInfo( p_vout );
1067 /* Remove picture from heap */
1068 vlc_mutex_lock( &p_vout->picture_lock );
1069 if( p_pic->i_refcount )
1071 p_pic->i_status = DISPLAYED_PICTURE;
1075 p_pic->i_status = DESTROYED_PICTURE;
1076 p_vout->i_pictures--;
1078 vlc_mutex_unlock( &p_vout->picture_lock );
1080 /* Render interface and subpicture */
1081 if( b_display && p_vout->b_interface )
1083 RenderInterface( p_vout );
1089 RenderSubPicture( p_vout, p_subpic );
1092 /* Remove subpicture from heap */
1093 /*vlc_mutex_lock( &p_vout->subpicture_lock );
1094 p_subpic->i_status = DESTROYED_SUBPICTURE;
1095 vlc_mutex_unlock( &p_vout->subpicture_lock );*/
1100 else if( p_subpic ) /* subpicture alone */
1102 b_display = p_vout->b_active;
1103 p_vout->last_display_date = display_date;
1108 SetBufferPicture( p_vout, NULL );
1110 /* Render informations, interface and subpicture */
1111 if( p_vout->b_info )
1113 RenderInfo( p_vout );
1115 if( p_vout->b_interface )
1117 RenderInterface( p_vout );
1119 RenderSubPicture( p_vout, p_subpic );
1122 /* Remove subpicture from heap */
1123 /*vlc_mutex_lock( &p_vout->subpicture_lock );
1124 p_subpic->i_status = DESTROYED_SUBPICTURE;
1125 vlc_mutex_unlock( &p_vout->subpicture_lock );*/
1128 else if( p_vout->b_active ) /* idle or interface screen alone */
1130 if( p_vout->b_interface && 0 /* && XXX?? intf_change */ )
1132 /* Interface has changed, so a new rendering is required - force
1133 * it by setting last idle date to 0 */
1134 p_vout->last_idle_date = 0;
1137 /* Render idle screen and update idle date, then render interface if
1139 b_display = RenderIdle( p_vout );
1142 p_vout->last_idle_date = current_date;
1143 if( p_vout->b_interface )
1145 RenderInterface( p_vout );
1156 * Sleep, wake up and display rendered picture
1160 /* Store render time */
1161 p_vout->render_time = mdate() - current_date;
1164 /* Give back change lock */
1165 vlc_mutex_unlock( &p_vout->change_lock );
1167 /* Sleep a while or until a given date */
1168 if( display_date != 0 )
1170 mwait( display_date );
1174 msleep( VOUT_IDLE_SLEEP );
1177 /* On awakening, take back lock and send immediately picture to display,
1178 * then swap buffers */
1179 vlc_mutex_lock( &p_vout->change_lock );
1181 intf_DbgMsg( "picture %p, subpicture %p in buffer %d, display=%d\n", p_pic, p_subpic,
1182 p_vout->i_buffer_index, b_display && !(p_vout->i_changes & VOUT_NODISPLAY_CHANGE) );
1184 if( b_display && !(p_vout->i_changes & VOUT_NODISPLAY_CHANGE) )
1186 p_vout->p_sys_display( p_vout );
1187 p_vout->i_buffer_index = ++p_vout->i_buffer_index & 1;
1191 * Check events and manage thread
1193 if( p_vout->p_sys_manage( p_vout ) | Manage( p_vout ) )
1195 /* A fatal error occured, and the thread must terminate immediately,
1196 * without displaying anything - setting b_error to 1 cause the
1197 * immediate end of the main while() loop. */
1198 p_vout->b_error = 1;
1203 * Error loop - wait until the thread destruction is requested
1205 if( p_vout->b_error )
1207 ErrorThread( p_vout );
1211 EndThread( p_vout );
1212 DestroyThread( p_vout, THREAD_OVER );
1213 intf_DbgMsg( "thread end\n" );
1216 /*****************************************************************************
1217 * ErrorThread: RunThread() error loop
1218 *****************************************************************************
1219 * This function is called when an error occured during thread main's loop. The
1220 * thread can still receive feed, but must be ready to terminate as soon as
1222 *****************************************************************************/
1223 static void ErrorThread( vout_thread_t *p_vout )
1225 /* Wait until a `die' order */
1227 while( !p_vout->b_die )
1230 msleep( VOUT_IDLE_SLEEP );
1234 /*****************************************************************************
1235 * EndThread: thread destruction
1236 *****************************************************************************
1237 * This function is called when the thread ends after a sucessful
1238 * initialization. It frees all ressources allocated by InitThread.
1239 *****************************************************************************/
1240 static void EndThread( vout_thread_t *p_vout )
1242 int i_index; /* index in heap */
1246 *p_vout->pi_status = THREAD_END;
1248 /* Destroy all remaining pictures and subpictures */
1249 for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++ )
1251 if( p_vout->p_picture[i_index].i_status != FREE_PICTURE )
1253 free( p_vout->p_picture[i_index].p_data );
1256 for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++ )
1258 if( p_vout->p_subpicture[i_index].i_status != FREE_SUBPICTURE )
1260 free( p_vout->p_subpicture[i_index].p_data );
1264 /* Destroy translation tables */
1265 vout_EndYUV( p_vout );
1266 p_vout->p_sys_end( p_vout );
1269 /*****************************************************************************
1270 * DestroyThread: thread destruction
1271 *****************************************************************************
1272 * This function is called when the thread ends. It frees all ressources
1273 * allocated by CreateThread. Status is available at this stage.
1274 *****************************************************************************/
1275 static void DestroyThread( vout_thread_t *p_vout, int i_status )
1277 int *pi_status; /* status adress */
1279 /* Store status adress */
1281 pi_status = p_vout->pi_status;
1283 /* Destroy thread structures allocated by Create and InitThread */
1284 vout_UnloadFont( p_vout->p_default_font );
1285 vout_UnloadFont( p_vout->p_large_font );
1286 p_vout->p_sys_destroy( p_vout );
1289 TrashPlugin( p_vout->vout_plugin );
1291 /* Free structure */
1293 *pi_status = i_status;
1296 /*****************************************************************************
1297 * Print: print simple text on a picture
1298 *****************************************************************************
1299 * This function will print a simple text on the picture. It is designed to
1300 * print debugging or general informations.
1301 *****************************************************************************/
1302 void Print( vout_thread_t *p_vout, int i_x, int i_y, int i_h_align, int i_v_align, unsigned char *psz_text )
1304 int i_text_height; /* total text height */
1305 int i_text_width; /* total text width */
1307 /* Update upper left coordinates according to alignment */
1308 vout_TextSize( p_vout->p_default_font, 0, psz_text, &i_text_width, &i_text_height );
1309 if( !Align( p_vout, &i_x, &i_y, i_text_width, i_text_height, i_h_align, i_v_align ) )
1311 /* Set area and print text */
1312 SetBufferArea( p_vout, i_x, i_y, i_text_width, i_text_height );
1313 vout_Print( p_vout->p_default_font, p_vout->p_buffer[ p_vout->i_buffer_index ].p_data +
1314 i_y * p_vout->i_bytes_per_line + i_x * p_vout->i_bytes_per_pixel,
1315 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
1316 p_vout->i_white_pixel, 0, 0,
1321 /*****************************************************************************
1322 * SetBufferArea: activate an area in current buffer
1323 *****************************************************************************
1324 * This function is called when something is rendered on the current buffer.
1325 * It set the area as active and prepare it to be cleared on next rendering.
1326 * Pay attention to the fact that in this functions, i_h is in fact the end y
1327 * coordinate of the new area.
1328 *****************************************************************************/
1329 static void SetBufferArea( vout_thread_t *p_vout, int i_x, int i_y, int i_w, int i_h )
1331 vout_buffer_t * p_buffer; /* current buffer */
1332 int i_area_begin, i_area_end; /* area vertical extension */
1333 int i_area, i_area_copy; /* area index */
1334 int i_area_shift; /* shift distance for areas */
1336 /* Choose buffer and modify h to end of area position */
1337 p_buffer = &p_vout->p_buffer[ p_vout->i_buffer_index ];
1341 * Remove part of the area which is inside the picture - this is done
1342 * by calling again SetBufferArea with the correct areas dimensions.
1344 if( (i_x >= p_buffer->i_pic_x) && (i_x + i_w <= p_buffer->i_pic_x + p_buffer->i_pic_width) )
1346 i_area_begin = p_buffer->i_pic_y;
1347 i_area_end = i_area_begin + p_buffer->i_pic_height - 1;
1349 if( ((i_y >= i_area_begin) && (i_y <= i_area_end)) ||
1350 ((i_h >= i_area_begin) && (i_h <= i_area_end)) ||
1351 ((i_y < i_area_begin) && (i_h > i_area_end)) )
1353 /* Keep the stripe above the picture, if any */
1354 if( i_y < i_area_begin )
1356 SetBufferArea( p_vout, i_x, i_y, i_w, i_area_begin - i_y );
1358 /* Keep the stripe below the picture, if any */
1359 if( i_h > i_area_end )
1361 SetBufferArea( p_vout, i_x, i_area_end, i_w, i_h - i_area_end );
1367 /* Skip some extensions until interesting areas */
1369 (i_area < p_buffer->i_areas) &&
1370 (p_buffer->pi_area_end[i_area] + 1 <= i_y);
1376 if( i_area == p_buffer->i_areas )
1378 /* New area is below all existing ones: just add it at the end of the
1379 * array, if possible - else, append it to the last one */
1380 if( i_area < VOUT_MAX_AREAS )
1382 p_buffer->pi_area_begin[i_area] = i_y;
1383 p_buffer->pi_area_end[i_area] = i_h;
1384 p_buffer->i_areas++;
1389 intf_DbgMsg("areas overflow\n");
1391 p_buffer->pi_area_end[VOUT_MAX_AREAS - 1] = i_h;
1396 i_area_begin = p_buffer->pi_area_begin[i_area];
1397 i_area_end = p_buffer->pi_area_end[i_area];
1399 if( i_y < i_area_begin )
1401 if( i_h >= i_area_begin - 1 )
1403 /* Extend area above */
1404 p_buffer->pi_area_begin[i_area] = i_y;
1408 /* Create a new area above : merge last area if overflow, then
1409 * move all old areas down */
1410 if( p_buffer->i_areas == VOUT_MAX_AREAS )
1413 intf_DbgMsg("areas overflow\n");
1415 p_buffer->pi_area_end[VOUT_MAX_AREAS - 2] = p_buffer->pi_area_end[VOUT_MAX_AREAS - 1];
1419 p_buffer->i_areas++;
1421 for( i_area_copy = p_buffer->i_areas - 1; i_area_copy > i_area; i_area_copy-- )
1423 p_buffer->pi_area_begin[i_area_copy] = p_buffer->pi_area_begin[i_area_copy - 1];
1424 p_buffer->pi_area_end[i_area_copy] = p_buffer->pi_area_end[i_area_copy - 1];
1426 p_buffer->pi_area_begin[i_area] = i_y;
1427 p_buffer->pi_area_end[i_area] = i_h;
1431 if( i_h > i_area_end )
1433 /* Find further areas which can be merged with the new one */
1434 for( i_area_copy = i_area + 1;
1435 (i_area_copy < p_buffer->i_areas) &&
1436 (p_buffer->pi_area_begin[i_area] <= i_h);
1443 if( i_area_copy != i_area )
1445 /* Merge with last possible areas */
1446 p_buffer->pi_area_end[i_area] = MAX( i_h, p_buffer->pi_area_end[i_area_copy] );
1448 /* Shift lower areas upward */
1449 i_area_shift = i_area_copy - i_area;
1450 p_buffer->i_areas -= i_area_shift;
1451 for( i_area_copy = i_area + 1; i_area_copy < p_buffer->i_areas; i_area_copy++ )
1453 p_buffer->pi_area_begin[i_area_copy] = p_buffer->pi_area_begin[i_area_copy + i_area_shift];
1454 p_buffer->pi_area_end[i_area_copy] = p_buffer->pi_area_end[i_area_copy + i_area_shift];
1459 /* Extend area below */
1460 p_buffer->pi_area_end[i_area] = i_h;
1466 /*****************************************************************************
1467 * SetBufferPicture: clear buffer and set picture area
1468 *****************************************************************************
1469 * This function is called before any rendering. It clears the current
1470 * rendering buffer and set the new picture area. If the picture pointer is
1471 * NULL, then no picture area is defined. Floating operations are avoided since
1472 * some MMX calculations may follow.
1473 *****************************************************************************/
1474 static void SetBufferPicture( vout_thread_t *p_vout, picture_t *p_pic )
1476 vout_buffer_t * p_buffer; /* current buffer */
1477 int i_pic_x, i_pic_y; /* picture position */
1478 int i_pic_width, i_pic_height; /* picture dimensions */
1479 int i_old_pic_y, i_old_pic_height; /* old picture area */
1480 int i_vout_width, i_vout_height; /* display dimensions */
1481 int i_area; /* area index */
1482 int i_data_index; /* area data index */
1483 int i_data_size; /* area data size, in 256 bytes blocs */
1484 u64 * p_data; /* area data, for clearing */
1485 byte_t * p_data8; /* area data, for clearing (slow) */
1487 /* Choose buffer and set display dimensions */
1488 p_buffer = &p_vout->p_buffer[ p_vout->i_buffer_index ];
1489 i_vout_width = p_vout->i_width;
1490 i_vout_height = p_vout->i_height;
1493 * Computes new picture size
1497 /* Try horizontal scaling first - width must be a mutiple of 16 */
1498 i_pic_width = (( p_vout->b_scale || (p_pic->i_width > i_vout_width)) ?
1499 i_vout_width : p_pic->i_width) & ~0xf;
1500 switch( p_pic->i_aspect_ratio )
1502 case AR_3_4_PICTURE:
1503 i_pic_height = i_pic_width * 3 / 4;
1505 case AR_16_9_PICTURE:
1506 i_pic_height = i_pic_width * 9 / 16;
1508 case AR_221_1_PICTURE:
1509 i_pic_height = i_pic_width * 100 / 221;
1511 case AR_SQUARE_PICTURE:
1513 i_pic_height = p_pic->i_height * i_pic_width / p_pic->i_width;
1517 /* If picture dimensions using horizontal scaling are too large, use
1518 * vertical scaling. Since width must be a multiple of 16, height is
1519 * adjusted again after. */
1520 if( i_pic_height > i_vout_height )
1522 i_pic_height = ( p_vout->b_scale || (p_pic->i_height > i_vout_height)) ?
1523 i_vout_height : p_pic->i_height;
1524 switch( p_pic->i_aspect_ratio )
1526 case AR_3_4_PICTURE:
1527 i_pic_width = (i_pic_height * 4 / 3) & ~0xf;
1528 i_pic_height = i_pic_width * 3 / 4;
1530 case AR_16_9_PICTURE:
1531 i_pic_width = (i_pic_height * 16 / 9) & ~0xf;
1532 i_pic_height = i_pic_width * 9 / 16;
1534 case AR_221_1_PICTURE:
1535 i_pic_width = (i_pic_height * 221 / 100) & ~0xf;
1536 i_pic_height = i_pic_width * 100 / 221;
1538 case AR_SQUARE_PICTURE:
1540 i_pic_width = (p_pic->i_width * i_pic_height / p_pic->i_height) & ~0xf;
1541 i_pic_height = p_pic->i_height * i_pic_width / p_pic->i_width;
1546 /* Set picture position */
1547 i_pic_x = (p_vout->i_width - i_pic_width) / 2;
1548 i_pic_y = (p_vout->i_height - i_pic_height) / 2;
1552 /* No picture: size is 0 */
1560 * Set new picture size - if is is smaller than the previous one, clear
1561 * around it. Since picture are centered, only their size is tested.
1563 if( (p_buffer->i_pic_width > i_pic_width) || (p_buffer->i_pic_height > i_pic_height) )
1565 i_old_pic_y = p_buffer->i_pic_y;
1566 i_old_pic_height = p_buffer->i_pic_height;
1567 p_buffer->i_pic_x = i_pic_x;
1568 p_buffer->i_pic_y = i_pic_y;
1569 p_buffer->i_pic_width = i_pic_width;
1570 p_buffer->i_pic_height = i_pic_height;
1571 SetBufferArea( p_vout, 0, i_old_pic_y, p_vout->i_width, i_old_pic_height );
1575 p_buffer->i_pic_x = i_pic_x;
1576 p_buffer->i_pic_y = i_pic_y;
1577 p_buffer->i_pic_width = i_pic_width;
1578 p_buffer->i_pic_height = i_pic_height;
1584 for( i_area = 0; i_area < p_buffer->i_areas; i_area++ )
1587 intf_DbgMsg("clearing picture %p area in buffer %d: %d-%d\n", p_pic,
1588 p_vout->i_buffer_index, p_buffer->pi_area_begin[i_area], p_buffer->pi_area_end[i_area] );
1590 i_data_size = (p_buffer->pi_area_end[i_area] - p_buffer->pi_area_begin[i_area] + 1) * p_vout->i_bytes_per_line;
1591 p_data = (u64*) (p_buffer->p_data + p_vout->i_bytes_per_line * p_buffer->pi_area_begin[i_area]);
1592 for( i_data_index = i_data_size / 256; i_data_index-- ; )
1594 /* Clear 256 bytes block */
1595 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1596 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1597 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1598 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1599 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1600 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1601 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1602 *p_data++ = 0; *p_data++ = 0; *p_data++ = 0; *p_data++ = 0;
1604 for( i_data_index = (i_data_size % 256) / 16; i_data_index--; )
1606 /* Clear remaining 16 bytes blocks */
1607 *p_data++ = 0; *p_data++ = 0;
1609 p_data8 = (byte_t *)p_data;
1610 for( i_data_index = i_data_size % 16; i_data_index--; )
1612 /* Clear remaining bytes */
1620 p_buffer->i_areas = 0;
1623 /*****************************************************************************
1624 * RenderPicture: render a picture
1625 *****************************************************************************
1626 * This function convert a picture from a video heap to a pixel-encoded image
1627 * and copy it to the current rendering buffer. No lock is required, since the
1628 * rendered picture has been determined as existant, and will only be destroyed
1629 * by the vout thread later.
1630 *****************************************************************************/
1631 static void RenderPicture( vout_thread_t *p_vout, picture_t *p_pic )
1634 char psz_date[MSTRTIME_MAX_SIZE]; /* picture date */
1635 mtime_t render_time; /* picture rendering time */
1637 vout_buffer_t * p_buffer; /* rendering buffer */
1638 byte_t * p_pic_data; /* convertion destination */
1640 /* Get and set rendering informations */
1641 p_buffer = &p_vout->p_buffer[ p_vout->i_buffer_index ];
1642 p_pic_data = p_buffer->p_data +
1643 p_buffer->i_pic_x * p_vout->i_bytes_per_pixel +
1644 p_buffer->i_pic_y * p_vout->i_bytes_per_line;
1646 render_time = mdate();
1650 * Choose appropriate rendering function and render picture
1652 switch( p_pic->i_type )
1654 case YUV_420_PICTURE:
1655 p_vout->yuv.p_Convert420( p_vout, p_pic_data,
1656 p_pic->p_y, p_pic->p_u, p_pic->p_v,
1657 p_pic->i_width, p_pic->i_height,
1658 p_buffer->i_pic_width, p_buffer->i_pic_height,
1659 p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel,
1660 p_pic->i_matrix_coefficients );
1662 case YUV_422_PICTURE:
1663 p_vout->yuv.p_Convert422( p_vout, p_pic_data,
1664 p_pic->p_y, p_pic->p_u, p_pic->p_v,
1665 p_pic->i_width, p_pic->i_height,
1666 p_buffer->i_pic_width, p_buffer->i_pic_height,
1667 p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel,
1668 p_pic->i_matrix_coefficients );
1670 case YUV_444_PICTURE:
1671 p_vout->yuv.p_Convert444( p_vout, p_pic_data,
1672 p_pic->p_y, p_pic->p_u, p_pic->p_v,
1673 p_pic->i_width, p_pic->i_height,
1674 p_buffer->i_pic_width, p_buffer->i_pic_height,
1675 p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel,
1676 p_pic->i_matrix_coefficients );
1680 intf_DbgMsg("error: unknown picture type %d\n", p_pic->i_type );
1686 /* Print picture date and rendering time */
1687 intf_DbgMsg("picture %p rendered in buffer %d (%ld us), display date: %s\n", p_pic,
1688 p_vout->i_buffer_index, (long) (mdate() - render_time),
1689 mstrtime( psz_date, p_pic->date ));
1693 /*****************************************************************************
1694 * RenderPictureInfo: print additionnal informations on a picture
1695 *****************************************************************************
1696 * This function will print informations such as fps and other picture
1697 * dependant informations.
1698 *****************************************************************************/
1699 static void RenderPictureInfo( vout_thread_t *p_vout, picture_t *p_pic )
1701 #if defined(STATS) || defined(DEBUG)
1702 char psz_buffer[256]; /* string buffer */
1707 * Print FPS rate in upper right corner
1709 if( p_vout->c_fps_samples > VOUT_FPS_SAMPLES )
1711 sprintf( psz_buffer, "%.2f fps", (double) VOUT_FPS_SAMPLES * 1000000 /
1712 ( p_vout->p_fps_sample[ (p_vout->c_fps_samples - 1) % VOUT_FPS_SAMPLES ] -
1713 p_vout->p_fps_sample[ p_vout->c_fps_samples % VOUT_FPS_SAMPLES ] ) );
1714 Print( p_vout, 0, 0, RIGHT_RALIGN, TOP_RALIGN, psz_buffer );
1718 * Print frames count and loop time in upper left corner
1720 sprintf( psz_buffer, "%ld frames rendering: %ld us",
1721 (long) p_vout->c_fps_samples, (long) p_vout->render_time );
1722 Print( p_vout, 0, 0, LEFT_RALIGN, TOP_RALIGN, psz_buffer );
1727 * Print picture information in lower right corner
1729 sprintf( psz_buffer, "%s picture %dx%d (%dx%d%+d%+d %s) -> %dx%d+%d+%d",
1730 (p_pic->i_type == YUV_420_PICTURE) ? "4:2:0" :
1731 ((p_pic->i_type == YUV_422_PICTURE) ? "4:2:2" :
1732 ((p_pic->i_type == YUV_444_PICTURE) ? "4:4:4" : "ukn-type")),
1733 p_pic->i_width, p_pic->i_height,
1734 p_pic->i_display_width, p_pic->i_display_height,
1735 p_pic->i_display_horizontal_offset, p_pic->i_display_vertical_offset,
1736 (p_pic->i_aspect_ratio == AR_SQUARE_PICTURE) ? "sq" :
1737 ((p_pic->i_aspect_ratio == AR_3_4_PICTURE) ? "4:3" :
1738 ((p_pic->i_aspect_ratio == AR_16_9_PICTURE) ? "16:9" :
1739 ((p_pic->i_aspect_ratio == AR_221_1_PICTURE) ? "2.21:1" : "ukn-ar" ))),
1740 p_vout->p_buffer[ p_vout->i_buffer_index ].i_pic_width,
1741 p_vout->p_buffer[ p_vout->i_buffer_index ].i_pic_height,
1742 p_vout->p_buffer[ p_vout->i_buffer_index ].i_pic_x,
1743 p_vout->p_buffer[ p_vout->i_buffer_index ].i_pic_y );
1744 Print( p_vout, 0, 0, RIGHT_RALIGN, BOTTOM_RALIGN, psz_buffer );
1748 /*****************************************************************************
1749 * RenderIdle: render idle picture
1750 *****************************************************************************
1751 * This function will print something on the screen. It will return 0 if
1752 * nothing has been rendered, or 1 if something has been changed on the screen.
1753 * Note that if you absolutely want something to be printed, you will have
1754 * to force it by setting the last idle date to 0.
1755 * Unlike other rendering functions, this one calls the SetBufferPicture
1756 * function when needed.
1757 *****************************************************************************/
1758 static int RenderIdle( vout_thread_t *p_vout )
1760 int i_x = 0, i_y = 0; /* text position */
1761 int i_width, i_height; /* text size */
1762 mtime_t current_date; /* current date */
1763 const char *psz_text = "waiting for stream ..."; /* text to display */
1766 current_date = mdate();
1767 if( (current_date - p_vout->last_display_date) > VOUT_IDLE_DELAY &&
1768 (current_date - p_vout->last_idle_date) > VOUT_IDLE_DELAY )
1770 SetBufferPicture( p_vout, NULL );
1771 vout_TextSize( p_vout->p_large_font, WIDE_TEXT | OUTLINED_TEXT, psz_text,
1772 &i_width, &i_height );
1773 if( !Align( p_vout, &i_x, &i_y, i_width, i_height, CENTER_RALIGN, CENTER_RALIGN ) )
1775 vout_Print( p_vout->p_large_font,
1776 p_vout->p_buffer[ p_vout->i_buffer_index ].p_data +
1777 i_x * p_vout->i_bytes_per_pixel + i_y * p_vout->i_bytes_per_line,
1778 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
1779 p_vout->i_white_pixel, p_vout->i_gray_pixel, 0,
1780 WIDE_TEXT | OUTLINED_TEXT, psz_text );
1781 SetBufferArea( p_vout, i_x, i_y, i_width, i_height );
1788 /*****************************************************************************
1789 * RenderInfo: render additionnal informations
1790 *****************************************************************************
1791 * This function render informations which do not depend of the current picture
1793 *****************************************************************************/
1794 static void RenderInfo( vout_thread_t *p_vout )
1797 char psz_buffer[256]; /* string buffer */
1798 int i_ready_pic = 0; /* ready pictures */
1799 int i_reserved_pic = 0; /* reserved pictures */
1800 int i_picture; /* picture index */
1805 * Print thread state in lower left corner
1807 for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
1809 switch( p_vout->p_picture[i_picture].i_status )
1811 case RESERVED_PICTURE:
1812 case RESERVED_DATED_PICTURE:
1813 case RESERVED_DISP_PICTURE:
1821 sprintf( psz_buffer, "pic: %d (%d/%d)/%d",
1822 p_vout->i_pictures, i_reserved_pic, i_ready_pic, VOUT_MAX_PICTURES );
1823 Print( p_vout, 0, 0, LEFT_RALIGN, BOTTOM_RALIGN, psz_buffer );
1827 /*****************************************************************************
1828 * RenderSubPicture: render a subpicture
1829 *****************************************************************************
1830 * This function render a sub picture unit.
1831 *****************************************************************************/
1832 static void RenderSubPicture( vout_thread_t *p_vout, subpicture_t *p_subpic )
1834 p_vout_font_t p_font; /* text font */
1835 int i_width, i_height; /* subpicture dimensions */
1837 while( p_subpic != NULL )
1839 switch( p_subpic->i_type )
1841 case DVD_SUBPICTURE: /* DVD subpicture unit */
1842 /* test if the picture really has to be displayed */
1843 if( mdate() < p_subpic->begin_date )
1847 if( mdate() > p_subpic->end_date )
1849 /* too late, destroying the subpic */
1850 vout_DestroySubPicture( p_vout, p_subpic );
1851 printf( "destroying subpicture\n" );
1854 vout_RenderSPU( p_subpic->p_data, p_subpic->type.spu.i_offset,
1855 p_subpic->type.spu.i_x1, p_subpic->type.spu.i_y1,
1856 p_vout->p_buffer[ p_vout->i_buffer_index ].p_data,
1857 p_vout->i_bytes_per_pixel,
1858 p_vout->i_bytes_per_line );
1860 case TEXT_SUBPICTURE: /* single line text */
1861 /* Select default font if not specified */
1862 p_font = p_subpic->type.text.p_font;
1863 if( p_font == NULL )
1865 p_font = p_vout->p_default_font;
1868 /* Compute text size (width and height fields are ignored)
1870 vout_TextSize( p_font, p_subpic->type.text.i_style,
1871 p_subpic->p_data, &i_width, &i_height );
1872 if( !Align( p_vout, &p_subpic->i_x, &p_subpic->i_y,
1873 i_width, i_height, p_subpic->i_horizontal_align,
1874 p_subpic->i_vertical_align ) )
1877 p_vout->p_buffer[ p_vout->i_buffer_index ].p_data +
1878 p_subpic->i_x * p_vout->i_bytes_per_pixel +
1879 p_subpic->i_y * p_vout->i_bytes_per_line,
1880 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
1881 p_subpic->type.text.i_char_color,
1882 p_subpic->type.text.i_border_color,
1883 p_subpic->type.text.i_bg_color,
1884 p_subpic->type.text.i_style, p_subpic->p_data );
1885 SetBufferArea( p_vout, p_subpic->i_x, p_subpic->i_y,
1886 i_width, i_height );
1892 intf_DbgMsg( "error: unknown subpicture %p type %d\n",
1893 p_subpic, p_subpic->i_type );
1897 p_subpic = p_subpic->p_next;
1901 /*****************************************************************************
1902 * RenderInterface: render the interface
1903 *****************************************************************************
1904 * This function render the interface, if any.
1905 *****************************************************************************/
1906 static void RenderInterface( vout_thread_t *p_vout )
1908 int i_height, i_text_height; /* total and text height */
1909 int i_width_1, i_width_2; /* text width */
1910 int i_byte; /* byte index */
1911 const char *psz_text_1 = "[1-9] Channel [i]nfo [c]olor [g/G]amma";
1912 const char *psz_text_2 = "[+/-] Volume [m]ute [s]caling [Q]uit";
1915 vout_TextSize( p_vout->p_large_font, OUTLINED_TEXT, psz_text_1, &i_width_1, &i_height );
1916 vout_TextSize( p_vout->p_large_font, OUTLINED_TEXT, psz_text_2, &i_width_2, &i_text_height );
1917 i_height += i_text_height;
1919 /* Render background */
1920 for( i_byte = (p_vout->i_height - i_height) * p_vout->i_bytes_per_line;
1921 i_byte < p_vout->i_height * p_vout->i_bytes_per_line;
1925 p_vout->p_buffer[ p_vout->i_buffer_index ].p_data[ i_byte ] = p_vout->i_blue_pixel;
1928 /* Render text, if not larger than screen */
1929 if( i_width_1 < p_vout->i_width )
1931 vout_Print( p_vout->p_large_font, p_vout->p_buffer[ p_vout->i_buffer_index ].p_data +
1932 (p_vout->i_height - i_height) * p_vout->i_bytes_per_line,
1933 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
1934 p_vout->i_white_pixel, p_vout->i_black_pixel, 0,
1935 OUTLINED_TEXT, psz_text_1 );
1937 if( i_width_2 < p_vout->i_width )
1939 vout_Print( p_vout->p_large_font, p_vout->p_buffer[ p_vout->i_buffer_index ].p_data +
1940 (p_vout->i_height - i_height + i_text_height) * p_vout->i_bytes_per_line,
1941 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
1942 p_vout->i_white_pixel, p_vout->i_black_pixel, 0,
1943 OUTLINED_TEXT, psz_text_2 );
1946 /* Activate modified area */
1947 SetBufferArea( p_vout, 0, p_vout->i_height - i_height, p_vout->i_width, i_height );
1950 /*****************************************************************************
1951 * Synchronize: update synchro level depending of heap state
1952 *****************************************************************************
1953 * This function is called during the main vout loop.
1954 *****************************************************************************/
1955 static void Synchronize( vout_thread_t *p_vout, s64 i_delay )
1957 int i_synchro_inc = 0;
1958 /* XXX?? gore following */
1959 static int i_panic_count = 0;
1960 static int i_last_synchro_inc = 0;
1961 static float r_synchro_level = VOUT_SYNCHRO_LEVEL_START;
1962 static int i_truc = 10;
1966 //fprintf( stderr, "PANIC %d\n", i_panic_count );
1972 if( p_vout->i_pictures > VOUT_SYNCHRO_HEAP_IDEAL_SIZE+1 )
1975 i_synchro_inc += p_vout->i_pictures - VOUT_SYNCHRO_HEAP_IDEAL_SIZE - 1;
1980 if( p_vout->i_pictures < VOUT_SYNCHRO_HEAP_IDEAL_SIZE )
1983 i_synchro_inc += p_vout->i_pictures - VOUT_SYNCHRO_HEAP_IDEAL_SIZE;
1987 if( i_truc > VOUT_SYNCHRO_LEVEL_MAX*2*2*2*2*2 ||
1988 i_synchro_inc*i_last_synchro_inc < 0 )
1993 if( i_delay < 6000 )
1998 else if( i_delay < 70000 )
2000 i_truc = 24+(24*i_delay)/70000;
2003 i_synchro_inc -= 1+(5*(70000-i_delay))/70000;
2005 else if( i_delay > 100000 )
2007 r_synchro_level += 1;
2008 if( i_delay > 130000 )
2009 r_synchro_level += 1;
2012 r_synchro_level += (float)i_synchro_inc / i_truc;
2013 p_vout->i_synchro_level = (int)(r_synchro_level+0.5);
2015 if( r_synchro_level > VOUT_SYNCHRO_LEVEL_MAX )
2017 r_synchro_level = VOUT_SYNCHRO_LEVEL_MAX;
2020 //fprintf( stderr, "synchro level : %d, heap : %d (%d, %d) (%d, %f) - %Ld\n", p_vout->i_synchro_level,
2021 // p_vout->i_pictures, i_last_synchro_inc, i_synchro_inc, i_truc, r_synchro_level, i_delay );
2022 i_last_synchro_inc = i_synchro_inc;
2025 /*****************************************************************************
2026 * Manage: manage thread
2027 *****************************************************************************
2028 * This function will handle changes in thread configuration.
2029 *****************************************************************************/
2030 static int Manage( vout_thread_t *p_vout )
2033 if( p_vout->i_changes )
2035 intf_DbgMsg("changes: 0x%x (no display: 0x%x)\n", p_vout->i_changes,
2036 p_vout->i_changes & VOUT_NODISPLAY_CHANGE );
2040 /* On gamma or grayscale change, rebuild tables */
2041 if( p_vout->i_changes & (VOUT_GAMMA_CHANGE | VOUT_GRAYSCALE_CHANGE |
2044 if( vout_ResetYUV( p_vout ) )
2046 intf_ErrMsg("error: can't rebuild convertion tables\n");
2051 /* Clear changes flags which does not need management or have been
2053 p_vout->i_changes &= ~(VOUT_GAMMA_CHANGE | VOUT_GRAYSCALE_CHANGE |
2054 VOUT_YUV_CHANGE | VOUT_INFO_CHANGE |
2055 VOUT_INTF_CHANGE | VOUT_SCALE_CHANGE );
2057 /* Detect unauthorized changes */
2058 if( p_vout->i_changes )
2060 /* Some changes were not acknowledged by p_vout->p_sys_manage or this
2061 * function, it means they should not be authorized */
2062 intf_ErrMsg( "error: unauthorized changes in the video output thread\n" );
2069 /*****************************************************************************
2070 * Align: align a subpicture in the screen
2071 *****************************************************************************
2072 * This function is used for rendering text or subpictures. It returns non 0
2073 * it the final aera is not fully included in display area. Return coordinates
2075 *****************************************************************************/
2076 static int Align( vout_thread_t *p_vout, int *pi_x, int *pi_y,
2077 int i_width, int i_height, int i_h_align, int i_v_align )
2079 /* Align horizontally */
2083 *pi_x -= i_width / 2;
2086 *pi_x += (p_vout->i_width - i_width) / 2;
2092 *pi_x += p_vout->i_width - i_width;
2096 /* Align vertically */
2100 *pi_y -= i_height / 2;
2103 *pi_y += (p_vout->i_height - i_height) / 2;
2109 *pi_y += p_vout->i_height - i_height;
2111 case SUBTITLE_RALIGN:
2112 *pi_y += (p_vout->i_height + p_vout->p_buffer[ p_vout->i_buffer_index ].i_pic_y +
2113 p_vout->p_buffer[ p_vout->i_buffer_index ].i_pic_height - i_height) / 2;
2117 /* Return non 0 if clipping failed */
2118 return( (*pi_x < 0) || (*pi_y < 0) ||
2119 (*pi_x + i_width > p_vout->i_width) || (*pi_y + i_height > p_vout->i_height) );
2122 /*****************************************************************************
2123 * SetPalette: sets an 8 bpp palette
2124 *****************************************************************************
2125 * This function is just a prototype that does nothing. Architectures that
2126 * support palette allocation should override it.
2127 *****************************************************************************/
2128 static void SetPalette ( p_vout_thread_t p_vout, u16 *red,
2129 u16 *green, u16 *blue, u16 *transp )
2131 intf_ErrMsg( "SetPalette: method does not support palette changing\n" );