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 *****************************************************************************/
98 vout_thread_t *p_vout;
102 /*****************************************************************************
103 * Control: control facility for the vout (forwards to child vout)
104 *****************************************************************************/
105 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
107 int i_row, i_col, i_vout = 0;
109 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
111 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
113 vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
121 /*****************************************************************************
122 * Create: allocates Wall video thread output method
123 *****************************************************************************
124 * This function allocates and initializes a Wall vout method.
125 *****************************************************************************/
126 static int Create( vlc_object_t *p_this )
128 vout_thread_t *p_vout = (vout_thread_t *)p_this;
129 char *psz_method, *psz_tmp, *psz_method_tmp;
132 /* Allocate structure */
133 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
134 if( p_vout->p_sys == NULL )
136 msg_Err( p_vout, "out of memory" );
140 p_vout->pf_init = Init;
141 p_vout->pf_end = End;
142 p_vout->pf_manage = NULL;
143 p_vout->pf_render = Render;
144 p_vout->pf_display = NULL;
145 p_vout->pf_control = Control;
147 /* Look what method was requested */
148 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
149 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
151 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
152 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
154 msg_Dbg( p_vout, "opening a %i x %i wall",
155 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
157 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
158 p_vout->p_sys->i_col *
159 sizeof(struct vout_list_t) );
160 if( p_vout->p_sys->pp_vout == NULL )
162 msg_Err( p_vout, "out of memory" );
163 free( p_vout->p_sys );
167 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
169 /* If no trailing vout are specified, take them all */
170 if( psz_method == NULL )
172 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
175 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
178 /* If trailing vout are specified, activate only the requested ones */
181 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
184 p_vout->p_sys->pp_vout[i_vout].b_active = 0;
189 psz_tmp = psz_method;
190 while( *psz_tmp && *psz_tmp != ',' )
198 i_vout = atoi( psz_method );
199 psz_method = psz_tmp + 1;
203 i_vout = atoi( psz_method );
204 psz_method = psz_tmp;
208 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
210 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
215 free( psz_method_tmp );
220 /*****************************************************************************
221 * Init: initialize Wall video thread output method
222 *****************************************************************************/
223 static int Init( vout_thread_t *p_vout )
225 int i_index, i_row, i_col, i_width, i_height, i_left, i_top;
226 unsigned int i_target_width,i_target_height;
228 int i_aspect = 4*VOUT_ASPECT_FACTOR/3;
230 unsigned int i_hstart, i_hend, i_vstart, i_vend;
231 unsigned int w1,h1,w2,h2;
234 i_xpos = var_CreateGetInteger( p_vout, "video-x" );
235 i_ypos = var_CreateGetInteger( p_vout, "video-y" );
236 if( i_xpos < 0 ) i_xpos = 0;
237 if( i_ypos < 0 ) i_ypos = 0;
239 I_OUTPUTPICTURES = 0;
241 /* Initialize the output structure */
242 p_vout->output.i_chroma = p_vout->render.i_chroma;
243 p_vout->output.i_width = p_vout->render.i_width;
244 p_vout->output.i_height = p_vout->render.i_height;
245 p_vout->output.i_aspect = p_vout->render.i_aspect;
246 var_Create( p_vout, "align", VLC_VAR_INTEGER );
248 w1 = p_vout->output.i_width / p_vout->p_sys->i_col;
250 h1 = w1 * VOUT_ASPECT_FACTOR / i_aspect&~1;
253 h2 = p_vout->output.i_height / p_vout->p_sys->i_row&~1;
255 w2 = h2 * i_aspect / VOUT_ASPECT_FACTOR&~1;
258 if ( h1 * p_vout->p_sys->i_row < p_vout->output.i_height )
262 i_target_height = h2;
264 i_vend = p_vout->output.i_height;
265 i_tmp = i_target_width * p_vout->p_sys->i_col;
266 while( i_tmp < p_vout->output.i_width ) i_tmp += p_vout->p_sys->i_col;
267 i_hstart = (( i_tmp - p_vout->output.i_width ) / 2)&~1;
268 i_hend = i_hstart + p_vout->output.i_width;
273 i_target_height = h1;
276 i_hend = p_vout->output.i_width;
277 i_tmp = i_target_height * p_vout->p_sys->i_row;
278 while( i_tmp < p_vout->output.i_height ) i_tmp += p_vout->p_sys->i_row;
279 i_vstart = ( ( i_tmp - p_vout->output.i_height ) / 2 ) & ~1;
280 i_vend = i_vstart + p_vout->output.i_height;
282 msg_Dbg( p_vout, "target resolution %dx%d", i_target_width, i_target_height );
284 /* Try to open the real video output */
285 msg_Dbg( p_vout, "spawning the real video outputs" );
287 p_vout->p_sys->i_vout = 0;
288 msg_Dbg( p_vout, "target window (%d,%d)-(%d,%d)", i_hstart,i_vstart,i_hend,i_vend );
293 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
297 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
301 if( i_col*i_target_width >= i_hstart &&
302 (i_col+1)*i_target_width <= i_hend )
304 i_width = i_target_width;
306 else if( ( i_col + 1 ) * i_target_width < i_hstart ||
307 ( i_col * i_target_width ) > i_hend )
313 i_width = i_target_width - i_hstart % i_target_width;
314 i_align |= i_col > ( p_vout->p_sys->i_col / 2 ) ?
315 VOUT_ALIGN_LEFT : VOUT_ALIGN_RIGHT;
318 if( i_row * i_target_height >= i_vstart &&
319 ( i_row + 1 ) * i_target_height <= i_vend )
321 i_height = i_target_height;
323 else if( ( i_row + 1 ) * i_target_height < i_vstart ||
324 ( i_row * i_target_height ) > i_vend )
330 i_height = i_target_height -
331 i_vstart%i_target_height;
332 i_align |= i_row > ( p_vout->p_sys->i_row / 2 ) ?
333 VOUT_ALIGN_TOP : VOUT_ALIGN_BOTTOM;
335 if( i_height == 0 || i_width == 0 )
337 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active = VLC_FALSE;
340 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
341 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
342 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_left = i_left;
343 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_top = i_top;
346 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
348 p_vout->p_sys->i_vout++;
351 var_SetInteger( p_vout, "align", i_align );
352 var_SetInteger( p_vout, "video-x", i_left + i_xpos - i_width);
353 var_SetInteger( p_vout, "video-y", i_top + i_ypos );
355 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
356 vout_Create( p_vout, i_width, i_height,
357 p_vout->render.i_chroma,
358 i_aspect * i_target_height / i_height *
359 i_width / i_target_width );
360 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout == NULL )
362 msg_Err( p_vout, "failed to get %ix%i vout threads",
363 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
364 RemoveAllVout( p_vout );
368 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
370 p_vout->p_sys->i_vout++;
374 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
376 ADD_PARENT_CALLBACKS( SendEventsToChild );
381 /*****************************************************************************
382 * End: terminate Wall video thread output method
383 *****************************************************************************/
384 static void End( vout_thread_t *p_vout )
388 /* Free the fake output buffers we allocated */
389 for( i_index = I_OUTPUTPICTURES ; i_index ; )
392 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
396 /*****************************************************************************
397 * Destroy: destroy Wall video thread output method
398 *****************************************************************************
399 * Terminate an output method created by WallCreateOutputMethod
400 *****************************************************************************/
401 static void Destroy( vlc_object_t *p_this )
403 vout_thread_t *p_vout = (vout_thread_t *)p_this;
405 RemoveAllVout( p_vout );
407 DEL_PARENT_CALLBACKS( SendEventsToChild );
409 free( p_vout->p_sys->pp_vout );
410 free( p_vout->p_sys );
413 /*****************************************************************************
414 * Render: displays previously rendered output
415 *****************************************************************************
416 * This function send the currently rendered image to Wall image, waits
417 * until it is displayed and switch the two rendering buffers, preparing next
419 *****************************************************************************/
420 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
422 picture_t *p_outpic = NULL;
423 int i_col, i_row, i_vout, i_plane;
424 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
428 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
430 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
432 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
434 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;
435 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;
438 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
445 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
449 if( p_vout->b_die || p_vout->b_error )
452 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
456 msleep( VOUT_OUTMEM_SLEEP );
459 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
460 p_outpic, p_pic->date );
461 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
464 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
466 uint8_t *p_in, *p_in_end, *p_out;
467 int i_in_pitch = p_pic->p[i_plane].i_pitch;
468 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
469 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
471 p_in = p_pic->p[i_plane].p_pixels
472 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
474 p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
475 * p_pic->p[i_plane].i_pitch;
477 p_out = p_outpic->p[i_plane].p_pixels;
479 while( p_in < p_in_end )
481 p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
483 p_out += i_out_pitch;
486 // pi_left_skip[i_plane] += i_copy_pitch;
489 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
491 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
497 /* for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) */
499 /* pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height */
500 /* * p_pic->p[i_plane].i_visible_lines */
501 /* / p_vout->output.i_height */
502 /* * p_pic->p[i_plane].i_pitch; */
507 /*****************************************************************************
508 * RemoveAllVout: destroy all the child video output threads
509 *****************************************************************************/
510 static void RemoveAllVout( vout_thread_t *p_vout )
512 while( p_vout->p_sys->i_vout )
514 --p_vout->p_sys->i_vout;
515 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
518 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
521 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
523 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
528 /*****************************************************************************
529 * SendEvents: forward mouse and keyboard events to the parent p_vout
530 *****************************************************************************/
531 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
532 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
534 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
536 vlc_value_t sentval = newval;
538 /* Find the video output index */
539 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
541 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
547 if( i_vout == p_vout->p_sys->i_vout )
552 /* Translate the mouse coordinates */
553 if( !strcmp( psz_var, "mouse-x" ) )
555 sentval.i_int += p_vout->output.i_width
556 * (i_vout % p_vout->p_sys->i_col)
557 / p_vout->p_sys->i_col;
559 else if( !strcmp( psz_var, "mouse-y" ) )
561 sentval.i_int += p_vout->output.i_height
562 * (i_vout / p_vout->p_sys->i_row)
563 / p_vout->p_sys->i_row;
566 var_Set( p_vout, psz_var, sentval );
571 /*****************************************************************************
572 * SendEventsToChild: forward events to the child/children vout
573 *****************************************************************************/
574 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
575 vlc_value_t oldval, vlc_value_t newval, void *p_data )
577 vout_thread_t *p_vout = (vout_thread_t *)p_this;
578 int i_row, i_col, i_vout = 0;
580 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
582 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
584 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
585 if( !strcmp( psz_var, "fullscreen" ) ) break;