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_("Number of horizontal windows in " \
55 "which to split the video.")
57 #define ROWS_TEXT N_("Number of rows")
58 #define ROWS_LONGTEXT N_("Number of vertical 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_("Aspect ratio of the individual displays " \
70 set_description( _("Wall video filter") );
71 set_shortname( N_("Image wall" ));
72 set_capability( "video filter", 0 );
73 set_category( CAT_VIDEO );
74 set_subcategory( SUBCAT_VIDEO_VFILTER );
76 add_integer( "wall-cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
77 add_integer( "wall-rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
78 add_string( "wall-active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT,
80 add_string( "wall-element-aspect", "4:3", NULL, ASPECT_TEXT, ASPECT_LONGTEXT, VLC_FALSE );
82 add_shortcut( "wall" );
83 set_callbacks( Create, Destroy );
86 /*****************************************************************************
87 * vout_sys_t: Wall video output method descriptor
88 *****************************************************************************
89 * This structure is part of the video output thread descriptor.
90 * It describes the Wall specific properties of an output thread.
91 *****************************************************************************/
104 vout_thread_t *p_vout;
108 /*****************************************************************************
109 * Control: control facility for the vout (forwards to child vout)
110 *****************************************************************************/
111 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
113 int i_row, i_col, i_vout = 0;
115 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
117 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
119 vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
127 /*****************************************************************************
128 * Create: allocates Wall video thread output method
129 *****************************************************************************
130 * This function allocates and initializes a Wall vout method.
131 *****************************************************************************/
132 static int Create( vlc_object_t *p_this )
134 vout_thread_t *p_vout = (vout_thread_t *)p_this;
135 char *psz_method, *psz_tmp, *psz_method_tmp;
138 /* Allocate structure */
139 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
140 if( p_vout->p_sys == NULL )
142 msg_Err( p_vout, "out of memory" );
146 p_vout->pf_init = Init;
147 p_vout->pf_end = End;
148 p_vout->pf_manage = NULL;
149 p_vout->pf_render = Render;
150 p_vout->pf_display = NULL;
151 p_vout->pf_control = Control;
153 /* Look what method was requested */
154 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
155 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
157 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
158 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
160 msg_Dbg( p_vout, "opening a %i x %i wall",
161 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
163 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
164 p_vout->p_sys->i_col *
165 sizeof(struct vout_list_t) );
166 if( p_vout->p_sys->pp_vout == NULL )
168 msg_Err( p_vout, "out of memory" );
169 free( p_vout->p_sys );
173 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
175 /* If no trailing vout are specified, take them all */
176 if( psz_method == NULL )
178 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
181 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
184 /* If trailing vout are specified, activate only the requested ones */
187 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
190 p_vout->p_sys->pp_vout[i_vout].b_active = 0;
195 psz_tmp = psz_method;
196 while( *psz_tmp && *psz_tmp != ',' )
204 i_vout = atoi( psz_method );
205 psz_method = psz_tmp + 1;
209 i_vout = atoi( psz_method );
210 psz_method = psz_tmp;
214 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
216 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
221 free( psz_method_tmp );
226 /*****************************************************************************
227 * Init: initialize Wall video thread output method
228 *****************************************************************************/
229 static int Init( vout_thread_t *p_vout )
231 int i_index, i_row, i_col, i_width, i_height, i_left, i_top;
232 unsigned int i_target_width,i_target_height;
234 video_format_t fmt = {0};
235 int i_aspect = 4*VOUT_ASPECT_FACTOR/3;
237 unsigned int i_hstart, i_hend, i_vstart, i_vend;
238 unsigned int w1,h1,w2,h2;
240 int i_vstart_rounded = 0, i_hstart_rounded = 0;
243 psz_aspect = config_GetPsz( p_vout, "wall-element-aspect" );
244 if( psz_aspect && *psz_aspect )
246 char *psz_parser = strchr( psz_aspect, ':' );
249 *psz_parser++ = '\0';
250 i_aspect = atoi( psz_aspect ) * VOUT_ASPECT_FACTOR
251 / atoi( psz_parser );
255 msg_Warn( p_vout, "invalid aspect ratio specification" );
261 i_xpos = var_CreateGetInteger( p_vout, "video-x" );
262 i_ypos = var_CreateGetInteger( p_vout, "video-y" );
263 if( i_xpos < 0 ) i_xpos = 0;
264 if( i_ypos < 0 ) i_ypos = 0;
266 I_OUTPUTPICTURES = 0;
268 /* Initialize the output structure */
269 p_vout->output.i_chroma = p_vout->render.i_chroma;
270 p_vout->output.i_width = p_vout->render.i_width;
271 p_vout->output.i_height = p_vout->render.i_height;
272 p_vout->output.i_aspect = p_vout->render.i_aspect;
273 var_Create( p_vout, "align", VLC_VAR_INTEGER );
275 fmt.i_width = fmt.i_visible_width = p_vout->render.i_width;
276 fmt.i_height = fmt.i_visible_height = p_vout->render.i_height;
277 fmt.i_x_offset = fmt.i_y_offset = 0;
278 fmt.i_chroma = p_vout->render.i_chroma;
279 fmt.i_aspect = p_vout->render.i_aspect;
280 fmt.i_sar_num = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
281 fmt.i_sar_den = VOUT_ASPECT_FACTOR;
283 w1 = p_vout->output.i_width / p_vout->p_sys->i_col;
285 h1 = w1 * VOUT_ASPECT_FACTOR / i_aspect&~1;
288 h2 = p_vout->output.i_height / p_vout->p_sys->i_row&~1;
290 w2 = h2 * i_aspect / VOUT_ASPECT_FACTOR&~1;
293 if ( h1 * p_vout->p_sys->i_row < p_vout->output.i_height )
297 i_target_height = h2;
299 i_vend = p_vout->output.i_height;
300 i_tmp = i_target_width * p_vout->p_sys->i_col;
301 while( i_tmp < p_vout->output.i_width ) i_tmp += p_vout->p_sys->i_col;
302 i_hstart = (( i_tmp - p_vout->output.i_width ) / 2)&~1;
303 i_hstart_rounded = ( ( i_tmp - p_vout->output.i_width ) % 2 ) ||
304 ( ( ( i_tmp - p_vout->output.i_width ) / 2 ) & 1 );
305 i_hend = i_hstart + p_vout->output.i_width;
310 i_target_height = h1;
313 i_hend = p_vout->output.i_width;
314 i_tmp = i_target_height * p_vout->p_sys->i_row;
315 while( i_tmp < p_vout->output.i_height ) i_tmp += p_vout->p_sys->i_row;
316 i_vstart = ( ( i_tmp - p_vout->output.i_height ) / 2 ) & ~1;
317 i_vstart_rounded = ( ( i_tmp - p_vout->output.i_height ) % 2 ) ||
318 ( ( ( i_tmp - p_vout->output.i_height ) / 2 ) & 1 );
319 i_vend = i_vstart + p_vout->output.i_height;
321 msg_Dbg( p_vout, "target resolution %dx%d", i_target_width, i_target_height );
323 /* Try to open the real video output */
324 msg_Dbg( p_vout, "spawning the real video outputs" );
326 p_vout->p_sys->i_vout = 0;
327 msg_Dbg( p_vout, "target window (%d,%d)-(%d,%d)", i_hstart,i_vstart,i_hend,i_vend );
332 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
336 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
340 if( i_col*i_target_width >= i_hstart &&
341 (i_col+1)*i_target_width <= i_hend )
343 i_width = i_target_width;
345 else if( ( i_col + 1 ) * i_target_width < i_hstart ||
346 ( i_col * i_target_width ) > i_hend )
352 i_width = ( i_target_width - i_hstart % i_target_width );
353 if( i_col >= ( p_vout->p_sys->i_col / 2 ) )
355 i_align |= VOUT_ALIGN_LEFT;
356 i_width -= i_hstart_rounded ? 2: 0;
360 i_align |= VOUT_ALIGN_RIGHT;
364 if( i_row * i_target_height >= i_vstart &&
365 ( i_row + 1 ) * i_target_height <= i_vend )
367 i_height = i_target_height;
369 else if( ( i_row + 1 ) * i_target_height < i_vstart ||
370 ( i_row * i_target_height ) > i_vend )
376 i_height = ( i_target_height -
377 i_vstart%i_target_height );
378 if( i_row >= ( p_vout->p_sys->i_row / 2 ) )
380 i_align |= VOUT_ALIGN_TOP;
381 i_height -= i_vstart_rounded ? 2: 0;
385 i_align |= VOUT_ALIGN_BOTTOM;
388 if( i_height == 0 || i_width == 0 )
390 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active = VLC_FALSE;
393 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
394 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
395 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_left = i_left;
396 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_top = i_top;
399 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
401 p_vout->p_sys->i_vout++;
404 var_SetInteger( p_vout, "align", i_align );
405 var_SetInteger( p_vout, "video-x", i_left + i_xpos - i_width);
406 var_SetInteger( p_vout, "video-y", i_top + i_ypos );
408 fmt.i_width = fmt.i_visible_width = i_width;
409 fmt.i_height = fmt.i_visible_height = i_height;
410 fmt.i_aspect = i_aspect * i_target_height / i_height *
411 i_width / i_target_width;
413 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
414 vout_Create( p_vout, &fmt );
415 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout )
417 msg_Err( p_vout, "failed to get %ix%i vout threads",
418 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
419 RemoveAllVout( p_vout );
423 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
425 p_vout->p_sys->i_vout++;
429 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
431 ADD_PARENT_CALLBACKS( SendEventsToChild );
436 /*****************************************************************************
437 * End: terminate Wall video thread output method
438 *****************************************************************************/
439 static void End( vout_thread_t *p_vout )
443 /* Free the fake output buffers we allocated */
444 for( i_index = I_OUTPUTPICTURES ; i_index ; )
447 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
451 /*****************************************************************************
452 * Destroy: destroy Wall video thread output method
453 *****************************************************************************
454 * Terminate an output method created by WallCreateOutputMethod
455 *****************************************************************************/
456 static void Destroy( vlc_object_t *p_this )
458 vout_thread_t *p_vout = (vout_thread_t *)p_this;
460 RemoveAllVout( p_vout );
462 DEL_PARENT_CALLBACKS( SendEventsToChild );
464 free( p_vout->p_sys->pp_vout );
465 free( p_vout->p_sys );
468 /*****************************************************************************
469 * Render: displays previously rendered output
470 *****************************************************************************
471 * This function send the currently rendered image to Wall image, waits
472 * until it is displayed and switch the two rendering buffers, preparing next
474 *****************************************************************************/
475 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
477 picture_t *p_outpic = NULL;
478 int i_col, i_row, i_vout, i_plane;
479 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
483 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
485 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
487 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
489 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;
490 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;
493 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
500 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
504 if( p_vout->b_die || p_vout->b_error )
507 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
511 msleep( VOUT_OUTMEM_SLEEP );
514 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
515 p_outpic, p_pic->date );
516 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
519 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
521 uint8_t *p_in, *p_in_end, *p_out;
522 int i_in_pitch = p_pic->p[i_plane].i_pitch;
523 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
524 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
526 p_in = p_pic->p[i_plane].p_pixels
527 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
529 p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
530 * p_pic->p[i_plane].i_pitch;
532 p_out = p_outpic->p[i_plane].p_pixels;
534 while( p_in < p_in_end )
536 p_vout->p_libvlc->pf_memcpy( p_out, p_in, i_copy_pitch );
538 p_out += i_out_pitch;
541 // pi_left_skip[i_plane] += i_copy_pitch;
544 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
546 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
552 /* for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) */
554 /* pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height */
555 /* * p_pic->p[i_plane].i_visible_lines */
556 /* / p_vout->output.i_height */
557 /* * p_pic->p[i_plane].i_pitch; */
562 /*****************************************************************************
563 * RemoveAllVout: destroy all the child video output threads
564 *****************************************************************************/
565 static void RemoveAllVout( vout_thread_t *p_vout )
567 while( p_vout->p_sys->i_vout )
569 --p_vout->p_sys->i_vout;
570 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
573 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
576 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
578 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
583 /*****************************************************************************
584 * SendEvents: forward mouse and keyboard events to the parent p_vout
585 *****************************************************************************/
586 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
587 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
589 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
591 vlc_value_t sentval = newval;
593 /* Find the video output index */
594 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
596 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
602 if( i_vout == p_vout->p_sys->i_vout )
607 /* Translate the mouse coordinates */
608 if( !strcmp( psz_var, "mouse-x" ) )
610 sentval.i_int += p_vout->output.i_width
611 * (i_vout % p_vout->p_sys->i_col)
612 / p_vout->p_sys->i_col;
614 else if( !strcmp( psz_var, "mouse-y" ) )
616 sentval.i_int += p_vout->output.i_height
617 * (i_vout / p_vout->p_sys->i_row)
618 / p_vout->p_sys->i_row;
621 var_Set( p_vout, psz_var, sentval );
626 /*****************************************************************************
627 * SendEventsToChild: forward events to the child/children vout
628 *****************************************************************************/
629 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
630 vlc_value_t oldval, vlc_value_t newval, void *p_data )
632 vout_thread_t *p_vout = (vout_thread_t *)p_this;
633 int i_row, i_col, i_vout = 0;
635 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
637 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
639 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
640 if( !strcmp( psz_var, "fullscreen" ) ) break;