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 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, " \
66 set_description( _("wall video filter") );
67 set_shortname( N_("Image wall" ));
68 set_capability( "video filter", 0 );
69 set_category( CAT_VIDEO );
70 set_subcategory( SUBCAT_VIDEO_VFILTER );
72 add_integer( "wall-cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
73 add_integer( "wall-rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
74 add_string( "wall-active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT, VLC_FALSE );
76 add_shortcut( "wall" );
77 set_callbacks( Create, Destroy );
80 /*****************************************************************************
81 * vout_sys_t: Wall video output method descriptor
82 *****************************************************************************
83 * This structure is part of the video output thread descriptor.
84 * It describes the Wall specific properties of an output thread.
85 *****************************************************************************/
96 vout_thread_t *p_vout;
100 /*****************************************************************************
101 * Control: control facility for the vout (forwards to child vout)
102 *****************************************************************************/
103 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
105 int i_row, i_col, i_vout = 0;
107 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
109 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
111 vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
119 /*****************************************************************************
120 * Create: allocates Wall video thread output method
121 *****************************************************************************
122 * This function allocates and initializes a Wall vout method.
123 *****************************************************************************/
124 static int Create( vlc_object_t *p_this )
126 vout_thread_t *p_vout = (vout_thread_t *)p_this;
127 char *psz_method, *psz_tmp, *psz_method_tmp;
130 /* Allocate structure */
131 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
132 if( p_vout->p_sys == NULL )
134 msg_Err( p_vout, "out of memory" );
138 p_vout->pf_init = Init;
139 p_vout->pf_end = End;
140 p_vout->pf_manage = NULL;
141 p_vout->pf_render = Render;
142 p_vout->pf_display = NULL;
143 p_vout->pf_control = Control;
145 /* Look what method was requested */
146 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
147 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
149 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
150 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
152 msg_Dbg( p_vout, "opening a %i x %i wall",
153 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
155 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
156 p_vout->p_sys->i_col *
157 sizeof(struct vout_list_t) );
158 if( p_vout->p_sys->pp_vout == NULL )
160 msg_Err( p_vout, "out of memory" );
161 free( p_vout->p_sys );
165 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
167 /* If no trailing vout are specified, take them all */
168 if( psz_method == NULL )
170 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
173 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
176 /* If trailing vout are specified, activate only the requested ones */
179 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
182 p_vout->p_sys->pp_vout[i_vout].b_active = 0;
187 psz_tmp = psz_method;
188 while( *psz_tmp && *psz_tmp != ',' )
196 i_vout = atoi( psz_method );
197 psz_method = psz_tmp + 1;
201 i_vout = atoi( psz_method );
202 psz_method = psz_tmp;
206 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
208 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
213 free( psz_method_tmp );
218 /*****************************************************************************
219 * Init: initialize Wall video thread output method
220 *****************************************************************************/
221 static int Init( vout_thread_t *p_vout )
223 int i_index, i_row, i_col, i_width, i_height;
226 I_OUTPUTPICTURES = 0;
228 /* Initialize the output structure */
229 p_vout->output.i_chroma = p_vout->render.i_chroma;
230 p_vout->output.i_width = p_vout->render.i_width;
231 p_vout->output.i_height = p_vout->render.i_height;
232 p_vout->output.i_aspect = p_vout->render.i_aspect;
234 /* Try to open the real video output */
235 msg_Dbg( p_vout, "spawning the real video outputs" );
237 p_vout->p_sys->i_vout = 0;
239 /* FIXME: use bresenham instead of those ugly divisions */
240 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
242 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
244 if( i_col + 1 < p_vout->p_sys->i_col )
246 i_width = ( p_vout->render.i_width
247 / p_vout->p_sys->i_col ) & ~0x1;
251 i_width = p_vout->render.i_width
252 - ( ( p_vout->render.i_width
253 / p_vout->p_sys->i_col ) & ~0x1 ) * i_col;
256 if( i_row + 1 < p_vout->p_sys->i_row )
258 i_height = ( p_vout->render.i_height
259 / p_vout->p_sys->i_row ) & ~0x3;
263 i_height = p_vout->render.i_height
264 - ( ( p_vout->render.i_height
265 / p_vout->p_sys->i_row ) & ~0x3 ) * i_row;
268 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
269 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
271 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
273 p_vout->p_sys->i_vout++;
277 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
278 vout_Create( p_vout, i_width, i_height,
279 p_vout->render.i_chroma,
280 p_vout->render.i_aspect
281 * p_vout->render.i_height / i_height
282 * i_width / p_vout->render.i_width );
283 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout == NULL )
285 msg_Err( p_vout, "failed to get %ix%i vout threads",
286 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
287 RemoveAllVout( p_vout );
291 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
294 p_vout->p_sys->i_vout++;
298 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
300 ADD_PARENT_CALLBACKS( SendEventsToChild );
305 /*****************************************************************************
306 * End: terminate Wall video thread output method
307 *****************************************************************************/
308 static void End( vout_thread_t *p_vout )
312 /* Free the fake output buffers we allocated */
313 for( i_index = I_OUTPUTPICTURES ; i_index ; )
316 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
320 /*****************************************************************************
321 * Destroy: destroy Wall video thread output method
322 *****************************************************************************
323 * Terminate an output method created by WallCreateOutputMethod
324 *****************************************************************************/
325 static void Destroy( vlc_object_t *p_this )
327 vout_thread_t *p_vout = (vout_thread_t *)p_this;
329 RemoveAllVout( p_vout );
331 DEL_PARENT_CALLBACKS( SendEventsToChild );
333 free( p_vout->p_sys->pp_vout );
334 free( p_vout->p_sys );
337 /*****************************************************************************
338 * Render: displays previously rendered output
339 *****************************************************************************
340 * This function send the currently rendered image to Wall image, waits
341 * until it is displayed and switch the two rendering buffers, preparing next
343 *****************************************************************************/
344 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
346 picture_t *p_outpic = NULL;
347 int i_col, i_row, i_vout, i_plane;
348 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
352 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
354 pi_top_skip[i_plane] = 0;
357 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
359 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
361 pi_left_skip[i_plane] = 0;
364 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
366 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
368 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
370 pi_left_skip[i_plane] +=
371 p_vout->p_sys->pp_vout[ i_col == p_vout->p_sys->i_col-1?i_vout-1:i_vout ].i_width
372 * p_pic->p[i_plane].i_pitch / p_vout->output.i_width;
379 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
383 if( p_vout->b_die || p_vout->b_error )
386 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
390 msleep( VOUT_OUTMEM_SLEEP );
393 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
394 p_outpic, p_pic->date );
395 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
398 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
400 uint8_t *p_in, *p_in_end, *p_out;
401 int i_in_pitch = p_pic->p[i_plane].i_pitch;
402 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
403 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
405 p_in = p_pic->p[i_plane].p_pixels
406 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
408 p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
409 * p_pic->p[i_plane].i_pitch;
411 p_out = p_outpic->p[i_plane].p_pixels;
413 while( p_in < p_in_end )
415 p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
417 p_out += i_out_pitch;
420 pi_left_skip[i_plane] += i_out_pitch;
423 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
425 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
431 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
433 pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height
434 * p_pic->p[i_plane].i_visible_lines
435 / p_vout->output.i_height
436 * p_pic->p[i_plane].i_pitch;
441 /*****************************************************************************
442 * RemoveAllVout: destroy all the child video output threads
443 *****************************************************************************/
444 static void RemoveAllVout( vout_thread_t *p_vout )
446 while( p_vout->p_sys->i_vout )
448 --p_vout->p_sys->i_vout;
449 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
452 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
455 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
457 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
462 /*****************************************************************************
463 * SendEvents: forward mouse and keyboard events to the parent p_vout
464 *****************************************************************************/
465 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
466 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
468 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
470 vlc_value_t sentval = newval;
472 /* Find the video output index */
473 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
475 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
481 if( i_vout == p_vout->p_sys->i_vout )
486 /* Translate the mouse coordinates */
487 if( !strcmp( psz_var, "mouse-x" ) )
489 sentval.i_int += p_vout->output.i_width
490 * (i_vout % p_vout->p_sys->i_col)
491 / p_vout->p_sys->i_col;
493 else if( !strcmp( psz_var, "mouse-y" ) )
495 sentval.i_int += p_vout->output.i_height
496 * (i_vout / p_vout->p_sys->i_row)
497 / p_vout->p_sys->i_row;
500 var_Set( p_vout, psz_var, sentval );
505 /*****************************************************************************
506 * SendEventsToChild: forward events to the child/children vout
507 *****************************************************************************/
508 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
509 vlc_value_t oldval, vlc_value_t newval, void *p_data )
511 vout_thread_t *p_vout = (vout_thread_t *)p_this;
512 int i_row, i_col, i_vout = 0;
514 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
516 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
518 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
519 if( !strcmp( psz_var, "fullscreen" ) ) break;