1 /*****************************************************************************
2 * wall.c : Wall video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001, 2002, 2003 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
33 #include "filter_common.h"
35 /*****************************************************************************
37 *****************************************************************************/
38 static int Create ( vlc_object_t * );
39 static void Destroy ( vlc_object_t * );
41 static int Init ( vout_thread_t * );
42 static void End ( vout_thread_t * );
43 static void Render ( vout_thread_t *, picture_t * );
45 static void RemoveAllVout ( vout_thread_t *p_vout );
47 static int SendEvents( vlc_object_t *, char const *,
48 vlc_value_t, vlc_value_t, void * );
50 /*****************************************************************************
52 *****************************************************************************/
53 #define COLS_TEXT N_("Number of columns")
54 #define COLS_LONGTEXT N_("Select the number of horizontal video windows in " \
55 "which to split the video.")
57 #define ROWS_TEXT N_("Number of rows")
58 #define ROWS_LONGTEXT N_("Select the number of vertical video windows in " \
59 "which to split the video.")
61 #define ACTIVE_TEXT N_("Active windows")
62 #define ACTIVE_LONGTEXT N_("Comma separated list of active windows, " \
65 #define ASPECT_TEXT N_("Element aspect ratio")
66 #define ASPECT_LONGTEXT N_("The aspect ratio of the individual displays building the display wall")
69 set_description( _("Wall video filter") );
70 set_shortname( N_("Image wall" ));
71 set_capability( "video filter", 0 );
72 set_category( CAT_VIDEO );
73 set_subcategory( SUBCAT_VIDEO_VFILTER );
75 add_integer( "wall-cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
76 add_integer( "wall-rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
77 add_string( "wall-active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT,
79 add_string( "wall-element-aspect", "4:3", NULL, ASPECT_TEXT, ASPECT_LONGTEXT, VLC_FALSE );
81 add_shortcut( "wall" );
82 set_callbacks( Create, Destroy );
85 /*****************************************************************************
86 * vout_sys_t: Wall video output method descriptor
87 *****************************************************************************
88 * This structure is part of the video output thread descriptor.
89 * It describes the Wall specific properties of an output thread.
90 *****************************************************************************/
103 vout_thread_t *p_vout;
107 /*****************************************************************************
108 * Control: control facility for the vout (forwards to child vout)
109 *****************************************************************************/
110 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
112 int i_row, i_col, i_vout = 0;
114 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
116 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
118 vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
126 /*****************************************************************************
127 * Create: allocates Wall video thread output method
128 *****************************************************************************
129 * This function allocates and initializes a Wall vout method.
130 *****************************************************************************/
131 static int Create( vlc_object_t *p_this )
133 vout_thread_t *p_vout = (vout_thread_t *)p_this;
134 char *psz_method, *psz_tmp, *psz_method_tmp;
137 /* Allocate structure */
138 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
139 if( p_vout->p_sys == NULL )
141 msg_Err( p_vout, "out of memory" );
145 p_vout->pf_init = Init;
146 p_vout->pf_end = End;
147 p_vout->pf_manage = NULL;
148 p_vout->pf_render = Render;
149 p_vout->pf_display = NULL;
150 p_vout->pf_control = Control;
152 /* Look what method was requested */
153 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
154 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
156 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
157 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
159 msg_Dbg( p_vout, "opening a %i x %i wall",
160 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
162 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
163 p_vout->p_sys->i_col *
164 sizeof(struct vout_list_t) );
165 if( p_vout->p_sys->pp_vout == NULL )
167 msg_Err( p_vout, "out of memory" );
168 free( p_vout->p_sys );
172 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
174 /* If no trailing vout are specified, take them all */
175 if( psz_method == NULL )
177 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
180 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
183 /* If trailing vout are specified, activate only the requested ones */
186 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
189 p_vout->p_sys->pp_vout[i_vout].b_active = 0;
194 psz_tmp = psz_method;
195 while( *psz_tmp && *psz_tmp != ',' )
203 i_vout = atoi( psz_method );
204 psz_method = psz_tmp + 1;
208 i_vout = atoi( psz_method );
209 psz_method = psz_tmp;
213 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
215 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
220 free( psz_method_tmp );
225 /*****************************************************************************
226 * Init: initialize Wall video thread output method
227 *****************************************************************************/
228 static int Init( vout_thread_t *p_vout )
230 int i_index, i_row, i_col, i_width, i_height, i_left, i_top;
231 unsigned int i_target_width,i_target_height;
233 video_format_t fmt = {0};
234 int i_aspect = 4*VOUT_ASPECT_FACTOR/3;
236 unsigned int i_hstart, i_hend, i_vstart, i_vend;
237 unsigned int w1,h1,w2,h2;
239 int i_vstart_rounded = 0, i_hstart_rounded = 0;
242 psz_aspect = config_GetPsz( p_vout, "wall-element-aspect" );
243 if( psz_aspect && *psz_aspect )
245 char *psz_parser = strchr( psz_aspect, ':' );
248 *psz_parser++ = '\0';
249 i_aspect = atoi( psz_aspect ) * VOUT_ASPECT_FACTOR
250 / atoi( psz_parser );
254 msg_Warn( p_vout, "invalid aspect ratio specification" );
260 i_xpos = var_CreateGetInteger( p_vout, "video-x" );
261 i_ypos = var_CreateGetInteger( p_vout, "video-y" );
262 if( i_xpos < 0 ) i_xpos = 0;
263 if( i_ypos < 0 ) i_ypos = 0;
265 I_OUTPUTPICTURES = 0;
267 /* Initialize the output structure */
268 p_vout->output.i_chroma = p_vout->render.i_chroma;
269 p_vout->output.i_width = p_vout->render.i_width;
270 p_vout->output.i_height = p_vout->render.i_height;
271 p_vout->output.i_aspect = p_vout->render.i_aspect;
272 var_Create( p_vout, "align", VLC_VAR_INTEGER );
274 fmt.i_width = fmt.i_visible_width = p_vout->render.i_width;
275 fmt.i_height = fmt.i_visible_height = p_vout->render.i_height;
276 fmt.i_x_offset = fmt.i_y_offset = 0;
277 fmt.i_chroma = p_vout->render.i_chroma;
278 fmt.i_aspect = p_vout->render.i_aspect;
279 fmt.i_sar_num = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
280 fmt.i_sar_den = VOUT_ASPECT_FACTOR;
282 w1 = p_vout->output.i_width / p_vout->p_sys->i_col;
284 h1 = w1 * VOUT_ASPECT_FACTOR / i_aspect&~1;
287 h2 = p_vout->output.i_height / p_vout->p_sys->i_row&~1;
289 w2 = h2 * i_aspect / VOUT_ASPECT_FACTOR&~1;
292 if ( h1 * p_vout->p_sys->i_row < p_vout->output.i_height )
296 i_target_height = h2;
298 i_vend = p_vout->output.i_height;
299 i_tmp = i_target_width * p_vout->p_sys->i_col;
300 while( i_tmp < p_vout->output.i_width ) i_tmp += p_vout->p_sys->i_col;
301 i_hstart = (( i_tmp - p_vout->output.i_width ) / 2)&~1;
302 i_hstart_rounded = ( ( i_tmp - p_vout->output.i_width ) % 2 ) ||
303 ( ( ( i_tmp - p_vout->output.i_width ) / 2 ) & 1 );
304 i_hend = i_hstart + p_vout->output.i_width;
309 i_target_height = h1;
312 i_hend = p_vout->output.i_width;
313 i_tmp = i_target_height * p_vout->p_sys->i_row;
314 while( i_tmp < p_vout->output.i_height ) i_tmp += p_vout->p_sys->i_row;
315 i_vstart = ( ( i_tmp - p_vout->output.i_height ) / 2 ) & ~1;
316 i_vstart_rounded = ( ( i_tmp - p_vout->output.i_height ) % 2 ) ||
317 ( ( ( i_tmp - p_vout->output.i_height ) / 2 ) & 1 );
318 i_vend = i_vstart + p_vout->output.i_height;
320 msg_Dbg( p_vout, "target resolution %dx%d", i_target_width, i_target_height );
322 /* Try to open the real video output */
323 msg_Dbg( p_vout, "spawning the real video outputs" );
325 p_vout->p_sys->i_vout = 0;
326 msg_Dbg( p_vout, "target window (%d,%d)-(%d,%d)", i_hstart,i_vstart,i_hend,i_vend );
331 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
335 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
339 if( i_col*i_target_width >= i_hstart &&
340 (i_col+1)*i_target_width <= i_hend )
342 i_width = i_target_width;
344 else if( ( i_col + 1 ) * i_target_width < i_hstart ||
345 ( i_col * i_target_width ) > i_hend )
351 i_width = ( i_target_width - i_hstart % i_target_width );
352 if( i_col >= ( p_vout->p_sys->i_col / 2 ) )
354 i_align |= VOUT_ALIGN_LEFT;
355 i_width -= i_hstart_rounded ? 2: 0;
359 i_align |= VOUT_ALIGN_RIGHT;
363 if( i_row * i_target_height >= i_vstart &&
364 ( i_row + 1 ) * i_target_height <= i_vend )
366 i_height = i_target_height;
368 else if( ( i_row + 1 ) * i_target_height < i_vstart ||
369 ( i_row * i_target_height ) > i_vend )
375 i_height = ( i_target_height -
376 i_vstart%i_target_height );
377 if( i_row >= ( p_vout->p_sys->i_row / 2 ) )
379 i_align |= VOUT_ALIGN_TOP;
380 i_height -= i_vstart_rounded ? 2: 0;
384 i_align |= VOUT_ALIGN_BOTTOM;
387 if( i_height == 0 || i_width == 0 )
389 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active = VLC_FALSE;
392 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
393 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
394 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_left = i_left;
395 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_top = i_top;
398 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
400 p_vout->p_sys->i_vout++;
403 var_SetInteger( p_vout, "align", i_align );
404 var_SetInteger( p_vout, "video-x", i_left + i_xpos - i_width);
405 var_SetInteger( p_vout, "video-y", i_top + i_ypos );
407 fmt.i_width = fmt.i_visible_width = i_width;
408 fmt.i_height = fmt.i_visible_height = i_height;
409 fmt.i_aspect = i_aspect * i_target_height / i_height *
410 i_width / i_target_width;
412 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
413 vout_Create( p_vout, &fmt );
414 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout )
416 msg_Err( p_vout, "failed to get %ix%i vout threads",
417 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
418 RemoveAllVout( p_vout );
422 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
424 p_vout->p_sys->i_vout++;
428 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
430 ADD_PARENT_CALLBACKS( SendEventsToChild );
435 /*****************************************************************************
436 * End: terminate Wall video thread output method
437 *****************************************************************************/
438 static void End( vout_thread_t *p_vout )
442 /* Free the fake output buffers we allocated */
443 for( i_index = I_OUTPUTPICTURES ; i_index ; )
446 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
450 /*****************************************************************************
451 * Destroy: destroy Wall video thread output method
452 *****************************************************************************
453 * Terminate an output method created by WallCreateOutputMethod
454 *****************************************************************************/
455 static void Destroy( vlc_object_t *p_this )
457 vout_thread_t *p_vout = (vout_thread_t *)p_this;
459 RemoveAllVout( p_vout );
461 DEL_PARENT_CALLBACKS( SendEventsToChild );
463 free( p_vout->p_sys->pp_vout );
464 free( p_vout->p_sys );
467 /*****************************************************************************
468 * Render: displays previously rendered output
469 *****************************************************************************
470 * This function send the currently rendered image to Wall image, waits
471 * until it is displayed and switch the two rendering buffers, preparing next
473 *****************************************************************************/
474 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
476 picture_t *p_outpic = NULL;
477 int i_col, i_row, i_vout, i_plane;
478 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
482 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
484 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
486 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
488 pi_left_skip[i_plane] = p_vout->p_sys->pp_vout[ i_vout ].i_left * p_pic->p[ i_plane ].i_pitch / p_vout->output.i_width;
489 pi_top_skip[i_plane] = (p_vout->p_sys->pp_vout[ i_vout ].i_top * p_pic->p[ i_plane ].i_lines / p_vout->output.i_height)*p_pic->p[i_plane].i_pitch;
492 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
499 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
503 if( p_vout->b_die || p_vout->b_error )
506 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
510 msleep( VOUT_OUTMEM_SLEEP );
513 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
514 p_outpic, p_pic->date );
515 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
518 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
520 uint8_t *p_in, *p_in_end, *p_out;
521 int i_in_pitch = p_pic->p[i_plane].i_pitch;
522 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
523 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
525 p_in = p_pic->p[i_plane].p_pixels
526 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
528 p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
529 * p_pic->p[i_plane].i_pitch;
531 p_out = p_outpic->p[i_plane].p_pixels;
533 while( p_in < p_in_end )
535 p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
537 p_out += i_out_pitch;
540 // pi_left_skip[i_plane] += i_copy_pitch;
543 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
545 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
551 /* for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) */
553 /* pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height */
554 /* * p_pic->p[i_plane].i_visible_lines */
555 /* / p_vout->output.i_height */
556 /* * p_pic->p[i_plane].i_pitch; */
561 /*****************************************************************************
562 * RemoveAllVout: destroy all the child video output threads
563 *****************************************************************************/
564 static void RemoveAllVout( vout_thread_t *p_vout )
566 while( p_vout->p_sys->i_vout )
568 --p_vout->p_sys->i_vout;
569 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
572 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
575 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
577 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
582 /*****************************************************************************
583 * SendEvents: forward mouse and keyboard events to the parent p_vout
584 *****************************************************************************/
585 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
586 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
588 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
590 vlc_value_t sentval = newval;
592 /* Find the video output index */
593 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
595 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
601 if( i_vout == p_vout->p_sys->i_vout )
606 /* Translate the mouse coordinates */
607 if( !strcmp( psz_var, "mouse-x" ) )
609 sentval.i_int += p_vout->output.i_width
610 * (i_vout % p_vout->p_sys->i_col)
611 / p_vout->p_sys->i_col;
613 else if( !strcmp( psz_var, "mouse-y" ) )
615 sentval.i_int += p_vout->output.i_height
616 * (i_vout / p_vout->p_sys->i_row)
617 / p_vout->p_sys->i_row;
620 var_Set( p_vout, psz_var, sentval );
625 /*****************************************************************************
626 * SendEventsToChild: forward events to the child/children vout
627 *****************************************************************************/
628 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
629 vlc_value_t oldval, vlc_value_t newval, void *p_data )
631 vout_thread_t *p_vout = (vout_thread_t *)p_this;
632 int i_row, i_col, i_vout = 0;
634 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
636 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
638 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
639 if( !strcmp( psz_var, "fullscreen" ) ) break;