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_capability( "video filter", 0 );
68 set_category( CAT_VIDEO );
69 set_subcategory( SUBCAT_VIDEO_VFILTER );
71 add_integer( "wall-cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
72 add_integer( "wall-rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
73 add_string( "wall-active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT, VLC_FALSE );
75 add_shortcut( "wall" );
76 set_callbacks( Create, Destroy );
79 /*****************************************************************************
80 * vout_sys_t: Wall video output method descriptor
81 *****************************************************************************
82 * This structure is part of the video output thread descriptor.
83 * It describes the Wall specific properties of an output thread.
84 *****************************************************************************/
95 vout_thread_t *p_vout;
99 /*****************************************************************************
100 * Control: control facility for the vout (forwards to child vout)
101 *****************************************************************************/
102 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
104 int i_row, i_col, i_vout = 0;
106 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
108 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
110 vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
118 /*****************************************************************************
119 * Create: allocates Wall video thread output method
120 *****************************************************************************
121 * This function allocates and initializes a Wall vout method.
122 *****************************************************************************/
123 static int Create( vlc_object_t *p_this )
125 vout_thread_t *p_vout = (vout_thread_t *)p_this;
126 char *psz_method, *psz_tmp, *psz_method_tmp;
129 /* Allocate structure */
130 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
131 if( p_vout->p_sys == NULL )
133 msg_Err( p_vout, "out of memory" );
137 p_vout->pf_init = Init;
138 p_vout->pf_end = End;
139 p_vout->pf_manage = NULL;
140 p_vout->pf_render = Render;
141 p_vout->pf_display = NULL;
142 p_vout->pf_control = Control;
144 /* Look what method was requested */
145 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
146 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
148 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
149 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
151 msg_Dbg( p_vout, "opening a %i x %i wall",
152 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
154 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
155 p_vout->p_sys->i_col *
156 sizeof(struct vout_list_t) );
157 if( p_vout->p_sys->pp_vout == NULL )
159 msg_Err( p_vout, "out of memory" );
160 free( p_vout->p_sys );
164 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
166 /* If no trailing vout are specified, take them all */
167 if( psz_method == NULL )
169 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
172 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
175 /* If trailing vout are specified, activate only the requested ones */
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 = 0;
186 psz_tmp = psz_method;
187 while( *psz_tmp && *psz_tmp != ',' )
195 i_vout = atoi( psz_method );
196 psz_method = psz_tmp + 1;
200 i_vout = atoi( psz_method );
201 psz_method = psz_tmp;
205 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
207 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
212 free( psz_method_tmp );
217 /*****************************************************************************
218 * Init: initialize Wall video thread output method
219 *****************************************************************************/
220 static int Init( vout_thread_t *p_vout )
222 int i_index, i_row, i_col, i_width, i_height;
225 I_OUTPUTPICTURES = 0;
227 /* Initialize the output structure */
228 p_vout->output.i_chroma = p_vout->render.i_chroma;
229 p_vout->output.i_width = p_vout->render.i_width;
230 p_vout->output.i_height = p_vout->render.i_height;
231 p_vout->output.i_aspect = p_vout->render.i_aspect;
233 /* Try to open the real video output */
234 msg_Dbg( p_vout, "spawning the real video outputs" );
236 p_vout->p_sys->i_vout = 0;
238 /* FIXME: use bresenham instead of those ugly divisions */
239 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
241 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
243 if( i_col + 1 < p_vout->p_sys->i_col )
245 i_width = ( p_vout->render.i_width
246 / p_vout->p_sys->i_col ) & ~0x1;
250 i_width = p_vout->render.i_width
251 - ( ( p_vout->render.i_width
252 / p_vout->p_sys->i_col ) & ~0x1 ) * i_col;
255 if( i_row + 1 < p_vout->p_sys->i_row )
257 i_height = ( p_vout->render.i_height
258 / p_vout->p_sys->i_row ) & ~0x3;
262 i_height = p_vout->render.i_height
263 - ( ( p_vout->render.i_height
264 / p_vout->p_sys->i_row ) & ~0x3 ) * i_row;
267 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
268 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
270 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
272 p_vout->p_sys->i_vout++;
276 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
277 vout_Create( p_vout, i_width, i_height,
278 p_vout->render.i_chroma,
279 p_vout->render.i_aspect
280 * p_vout->render.i_height / i_height
281 * i_width / p_vout->render.i_width );
282 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout == NULL )
284 msg_Err( p_vout, "failed to get %ix%i vout threads",
285 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
286 RemoveAllVout( p_vout );
290 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
293 p_vout->p_sys->i_vout++;
297 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
299 ADD_PARENT_CALLBACKS( SendEventsToChild );
304 /*****************************************************************************
305 * End: terminate Wall video thread output method
306 *****************************************************************************/
307 static void End( vout_thread_t *p_vout )
311 /* Free the fake output buffers we allocated */
312 for( i_index = I_OUTPUTPICTURES ; i_index ; )
315 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
319 /*****************************************************************************
320 * Destroy: destroy Wall video thread output method
321 *****************************************************************************
322 * Terminate an output method created by WallCreateOutputMethod
323 *****************************************************************************/
324 static void Destroy( vlc_object_t *p_this )
326 vout_thread_t *p_vout = (vout_thread_t *)p_this;
328 RemoveAllVout( p_vout );
330 DEL_PARENT_CALLBACKS( SendEventsToChild );
332 free( p_vout->p_sys->pp_vout );
333 free( p_vout->p_sys );
336 /*****************************************************************************
337 * Render: displays previously rendered output
338 *****************************************************************************
339 * This function send the currently rendered image to Wall image, waits
340 * until it is displayed and switch the two rendering buffers, preparing next
342 *****************************************************************************/
343 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
345 picture_t *p_outpic = NULL;
346 int i_col, i_row, i_vout, i_plane;
347 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
351 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
353 pi_top_skip[i_plane] = 0;
356 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
358 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
360 pi_left_skip[i_plane] = 0;
363 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
365 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
367 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
369 pi_left_skip[i_plane] +=
370 p_vout->p_sys->pp_vout[ i_vout ].i_width
371 * p_pic->p[i_plane].i_pitch / p_vout->output.i_width;
378 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
382 if( p_vout->b_die || p_vout->b_error )
385 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
389 msleep( VOUT_OUTMEM_SLEEP );
392 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
393 p_outpic, p_pic->date );
394 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
397 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
399 uint8_t *p_in, *p_in_end, *p_out;
400 int i_in_pitch = p_pic->p[i_plane].i_pitch;
401 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
402 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
404 p_in = p_pic->p[i_plane].p_pixels
405 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
407 p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
408 * p_pic->p[i_plane].i_pitch;
410 p_out = p_outpic->p[i_plane].p_pixels;
412 while( p_in < p_in_end )
414 p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
416 p_out += i_out_pitch;
419 pi_left_skip[i_plane] += i_out_pitch;
422 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
424 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
430 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
432 pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height
433 * p_pic->p[i_plane].i_visible_lines
434 / p_vout->output.i_height
435 * p_pic->p[i_plane].i_pitch;
440 /*****************************************************************************
441 * RemoveAllVout: destroy all the child video output threads
442 *****************************************************************************/
443 static void RemoveAllVout( vout_thread_t *p_vout )
445 while( p_vout->p_sys->i_vout )
447 --p_vout->p_sys->i_vout;
448 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
451 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 );
456 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
461 /*****************************************************************************
462 * SendEvents: forward mouse and keyboard events to the parent p_vout
463 *****************************************************************************/
464 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
465 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
467 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
469 vlc_value_t sentval = newval;
471 /* Find the video output index */
472 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
474 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
480 if( i_vout == p_vout->p_sys->i_vout )
485 /* Translate the mouse coordinates */
486 if( !strcmp( psz_var, "mouse-x" ) )
488 sentval.i_int += p_vout->output.i_width
489 * (i_vout % p_vout->p_sys->i_col)
490 / p_vout->p_sys->i_col;
492 else if( !strcmp( psz_var, "mouse-y" ) )
494 sentval.i_int += p_vout->output.i_height
495 * (i_vout / p_vout->p_sys->i_row)
496 / p_vout->p_sys->i_row;
499 var_Set( p_vout, psz_var, sentval );
504 /*****************************************************************************
505 * SendEventsToChild: forward events to the child/children vout
506 *****************************************************************************/
507 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
508 vlc_value_t oldval, vlc_value_t newval, void *p_data )
510 vout_thread_t *p_vout = (vout_thread_t *)p_this;
511 int i_row, i_col, i_vout = 0;
513 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
515 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
517 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
518 if( !strcmp( psz_var, "fullscreen" ) ) break;