1 /*****************************************************************************
2 * wall.c : Wall video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
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., 59 Temple Place - Suite 330, Boston, MA 02111, 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 videowindows 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 videowindows 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, " \
66 set_description( _("wall video filter") );
67 set_capability( "video filter", 0 );
69 add_integer( "wall-cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
70 add_integer( "wall-rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
71 add_string( "wall-active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT, VLC_FALSE );
73 add_shortcut( "wall" );
74 set_callbacks( Create, Destroy );
77 /*****************************************************************************
78 * vout_sys_t: Wall video output method descriptor
79 *****************************************************************************
80 * This structure is part of the video output thread descriptor.
81 * It describes the Wall specific properties of an output thread.
82 *****************************************************************************/
93 vout_thread_t *p_vout;
97 /*****************************************************************************
98 * Control: control facility for the vout (forwards to child vout)
99 *****************************************************************************/
100 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
102 int i_row, i_col, i_vout = 0;
104 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
106 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
108 vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
116 /*****************************************************************************
117 * Create: allocates Wall video thread output method
118 *****************************************************************************
119 * This function allocates and initializes a Wall vout method.
120 *****************************************************************************/
121 static int Create( vlc_object_t *p_this )
123 vout_thread_t *p_vout = (vout_thread_t *)p_this;
124 char *psz_method, *psz_tmp, *psz_method_tmp;
127 /* Allocate structure */
128 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
129 if( p_vout->p_sys == NULL )
131 msg_Err( p_vout, "out of memory" );
135 p_vout->pf_init = Init;
136 p_vout->pf_end = End;
137 p_vout->pf_manage = NULL;
138 p_vout->pf_render = Render;
139 p_vout->pf_display = NULL;
140 p_vout->pf_control = Control;
142 /* Look what method was requested */
143 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
144 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
146 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
147 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
149 msg_Dbg( p_vout, "opening a %i x %i wall",
150 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
152 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
153 p_vout->p_sys->i_col *
154 sizeof(struct vout_list_t) );
155 if( p_vout->p_sys->pp_vout == NULL )
157 msg_Err( p_vout, "out of memory" );
158 free( p_vout->p_sys );
162 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
164 /* If no trailing vout are specified, take them all */
165 if( psz_method == NULL )
167 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
170 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
173 /* If trailing vout are specified, activate only the requested ones */
176 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
179 p_vout->p_sys->pp_vout[i_vout].b_active = 0;
184 psz_tmp = psz_method;
185 while( *psz_tmp && *psz_tmp != ',' )
193 i_vout = atoi( psz_method );
194 psz_method = psz_tmp + 1;
198 i_vout = atoi( psz_method );
199 psz_method = psz_tmp;
203 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
205 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
210 free( psz_method_tmp );
215 /*****************************************************************************
216 * Init: initialize Wall video thread output method
217 *****************************************************************************/
218 static int Init( vout_thread_t *p_vout )
220 int i_index, i_row, i_col, i_width, i_height;
223 I_OUTPUTPICTURES = 0;
225 /* Initialize the output structure */
226 p_vout->output.i_chroma = p_vout->render.i_chroma;
227 p_vout->output.i_width = p_vout->render.i_width;
228 p_vout->output.i_height = p_vout->render.i_height;
229 p_vout->output.i_aspect = p_vout->render.i_aspect;
231 /* Try to open the real video output */
232 msg_Dbg( p_vout, "spawning the real video outputs" );
234 p_vout->p_sys->i_vout = 0;
236 /* FIXME: use bresenham instead of those ugly divisions */
237 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
239 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
241 if( i_col + 1 < p_vout->p_sys->i_col )
243 i_width = ( p_vout->render.i_width
244 / p_vout->p_sys->i_col ) & ~0x1;
248 i_width = p_vout->render.i_width
249 - ( ( p_vout->render.i_width
250 / p_vout->p_sys->i_col ) & ~0x1 ) * i_col;
253 if( i_row + 1 < p_vout->p_sys->i_row )
255 i_height = ( p_vout->render.i_height
256 / p_vout->p_sys->i_row ) & ~0x3;
260 i_height = p_vout->render.i_height
261 - ( ( p_vout->render.i_height
262 / p_vout->p_sys->i_row ) & ~0x3 ) * i_row;
265 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
266 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
268 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
270 p_vout->p_sys->i_vout++;
274 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
275 vout_Create( p_vout, i_width, i_height,
276 p_vout->render.i_chroma,
277 p_vout->render.i_aspect
278 * p_vout->render.i_height / i_height
279 * i_width / p_vout->render.i_width );
280 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout == NULL )
282 msg_Err( p_vout, "failed to get %ix%i vout threads",
283 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
284 RemoveAllVout( p_vout );
288 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
291 p_vout->p_sys->i_vout++;
295 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
297 ADD_PARENT_CALLBACKS( SendEventsToChild );
302 /*****************************************************************************
303 * End: terminate Wall video thread output method
304 *****************************************************************************/
305 static void End( vout_thread_t *p_vout )
309 /* Free the fake output buffers we allocated */
310 for( i_index = I_OUTPUTPICTURES ; i_index ; )
313 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
317 /*****************************************************************************
318 * Destroy: destroy Wall video thread output method
319 *****************************************************************************
320 * Terminate an output method created by WallCreateOutputMethod
321 *****************************************************************************/
322 static void Destroy( vlc_object_t *p_this )
324 vout_thread_t *p_vout = (vout_thread_t *)p_this;
326 RemoveAllVout( p_vout );
328 DEL_PARENT_CALLBACKS( SendEventsToChild );
330 free( p_vout->p_sys->pp_vout );
331 free( p_vout->p_sys );
334 /*****************************************************************************
335 * Render: displays previously rendered output
336 *****************************************************************************
337 * This function send the currently rendered image to Wall image, waits
338 * until it is displayed and switch the two rendering buffers, preparing next
340 *****************************************************************************/
341 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
343 picture_t *p_outpic = NULL;
344 int i_col, i_row, i_vout, i_plane;
345 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
349 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
351 pi_top_skip[i_plane] = 0;
354 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
356 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
358 pi_left_skip[i_plane] = 0;
361 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
363 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
365 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
367 pi_left_skip[i_plane] +=
368 p_vout->p_sys->pp_vout[ i_vout ].i_width
369 * p_pic->p[i_plane].i_pitch / p_vout->output.i_width;
376 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
380 if( p_vout->b_die || p_vout->b_error )
383 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
387 msleep( VOUT_OUTMEM_SLEEP );
390 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
391 p_outpic, p_pic->date );
392 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
395 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
397 uint8_t *p_in, *p_in_end, *p_out;
398 int i_in_pitch = p_pic->p[i_plane].i_pitch;
399 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
400 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
402 p_in = p_pic->p[i_plane].p_pixels
403 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
405 p_in_end = p_in + p_outpic->p[i_plane].i_lines
406 * p_pic->p[i_plane].i_pitch;
408 p_out = p_outpic->p[i_plane].p_pixels;
410 while( p_in < p_in_end )
412 p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
414 p_out += i_out_pitch;
417 pi_left_skip[i_plane] += i_out_pitch;
420 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
422 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
428 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
430 pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height
431 * p_pic->p[i_plane].i_lines
432 / p_vout->output.i_height
433 * p_pic->p[i_plane].i_pitch;
438 /*****************************************************************************
439 * RemoveAllVout: destroy all the child video output threads
440 *****************************************************************************/
441 static void RemoveAllVout( vout_thread_t *p_vout )
443 while( p_vout->p_sys->i_vout )
445 --p_vout->p_sys->i_vout;
446 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
449 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
452 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
454 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
459 /*****************************************************************************
460 * SendEvents: forward mouse and keyboard events to the parent p_vout
461 *****************************************************************************/
462 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
463 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
465 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
467 vlc_value_t sentval = newval;
469 /* Find the video output index */
470 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
472 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
478 if( i_vout == p_vout->p_sys->i_vout )
483 /* Translate the mouse coordinates */
484 if( !strcmp( psz_var, "mouse-x" ) )
486 sentval.i_int += p_vout->output.i_width
487 * (i_vout % p_vout->p_sys->i_col)
488 / p_vout->p_sys->i_col;
490 else if( !strcmp( psz_var, "mouse-y" ) )
492 sentval.i_int += p_vout->output.i_height
493 * (i_vout / p_vout->p_sys->i_row)
494 / p_vout->p_sys->i_row;
497 var_Set( p_vout, psz_var, sentval );
502 /*****************************************************************************
503 * SendEventsToChild: forward events to the child/children vout
504 *****************************************************************************/
505 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
506 vlc_value_t oldval, vlc_value_t newval, void *p_data )
508 vout_thread_t *p_vout = (vout_thread_t *)p_this;
509 int i_row, i_col, i_vout = 0;
511 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
513 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
515 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
516 if( !strcmp( psz_var, "fullscreen" ) ) break;