1 /*****************************************************************************
2 * wall.c : Wall video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
5 * $Id: wall.c,v 1.13 2004/01/25 20:05:28 hartman Exp $
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 * Create: allocates Wall video thread output method
99 *****************************************************************************
100 * This function allocates and initializes a Wall vout method.
101 *****************************************************************************/
102 static int Create( vlc_object_t *p_this )
104 vout_thread_t *p_vout = (vout_thread_t *)p_this;
105 char *psz_method, *psz_tmp, *psz_method_tmp;
108 /* Allocate structure */
109 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
110 if( p_vout->p_sys == NULL )
112 msg_Err( p_vout, "out of memory" );
116 p_vout->pf_init = Init;
117 p_vout->pf_end = End;
118 p_vout->pf_manage = NULL;
119 p_vout->pf_render = Render;
120 p_vout->pf_display = NULL;
122 /* Look what method was requested */
123 p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
124 p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
126 p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
127 p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
129 msg_Dbg( p_vout, "opening a %i x %i wall",
130 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
132 p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
133 p_vout->p_sys->i_col *
134 sizeof(struct vout_list_t) );
135 if( p_vout->p_sys->pp_vout == NULL )
137 msg_Err( p_vout, "out of memory" );
138 free( p_vout->p_sys );
142 psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
144 /* If no trailing vout are specified, take them all */
145 if( psz_method == NULL )
147 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
150 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
153 /* If trailing vout are specified, activate only the requested ones */
156 for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
159 p_vout->p_sys->pp_vout[i_vout].b_active = 0;
164 psz_tmp = psz_method;
165 while( *psz_tmp && *psz_tmp != ',' )
173 i_vout = atoi( psz_method );
174 psz_method = psz_tmp + 1;
178 i_vout = atoi( psz_method );
179 psz_method = psz_tmp;
183 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
185 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
190 free( psz_method_tmp );
195 /*****************************************************************************
196 * Init: initialize Wall video thread output method
197 *****************************************************************************/
198 static int Init( vout_thread_t *p_vout )
200 int i_index, i_row, i_col, i_width, i_height;
203 I_OUTPUTPICTURES = 0;
205 /* Initialize the output structure */
206 p_vout->output.i_chroma = p_vout->render.i_chroma;
207 p_vout->output.i_width = p_vout->render.i_width;
208 p_vout->output.i_height = p_vout->render.i_height;
209 p_vout->output.i_aspect = p_vout->render.i_aspect;
211 /* Try to open the real video output */
212 msg_Dbg( p_vout, "spawning the real video outputs" );
214 p_vout->p_sys->i_vout = 0;
216 /* FIXME: use bresenham instead of those ugly divisions */
217 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
219 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
221 if( i_col + 1 < p_vout->p_sys->i_col )
223 i_width = ( p_vout->render.i_width
224 / p_vout->p_sys->i_col ) & ~0x1;
228 i_width = p_vout->render.i_width
229 - ( ( p_vout->render.i_width
230 / p_vout->p_sys->i_col ) & ~0x1 ) * i_col;
233 if( i_row + 1 < p_vout->p_sys->i_row )
235 i_height = ( p_vout->render.i_height
236 / p_vout->p_sys->i_row ) & ~0x3;
240 i_height = p_vout->render.i_height
241 - ( ( p_vout->render.i_height
242 / p_vout->p_sys->i_row ) & ~0x3 ) * i_row;
245 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
246 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
248 if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
250 p_vout->p_sys->i_vout++;
254 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
255 vout_Create( p_vout, i_width, i_height,
256 p_vout->render.i_chroma,
257 p_vout->render.i_aspect
258 * p_vout->render.i_height / i_height
259 * i_width / p_vout->render.i_width );
260 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout == NULL )
262 msg_Err( p_vout, "failed to get %ix%i vout threads",
263 p_vout->p_sys->i_col, p_vout->p_sys->i_row );
264 RemoveAllVout( p_vout );
268 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
271 p_vout->p_sys->i_vout++;
275 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
277 ADD_PARENT_CALLBACKS( SendEventsToChild );
282 /*****************************************************************************
283 * End: terminate Wall video thread output method
284 *****************************************************************************/
285 static void End( vout_thread_t *p_vout )
289 /* Free the fake output buffers we allocated */
290 for( i_index = I_OUTPUTPICTURES ; i_index ; )
293 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
297 /*****************************************************************************
298 * Destroy: destroy Wall video thread output method
299 *****************************************************************************
300 * Terminate an output method created by WallCreateOutputMethod
301 *****************************************************************************/
302 static void Destroy( vlc_object_t *p_this )
304 vout_thread_t *p_vout = (vout_thread_t *)p_this;
306 RemoveAllVout( p_vout );
308 DEL_PARENT_CALLBACKS( SendEventsToChild );
310 free( p_vout->p_sys->pp_vout );
311 free( p_vout->p_sys );
314 /*****************************************************************************
315 * Render: displays previously rendered output
316 *****************************************************************************
317 * This function send the currently rendered image to Wall image, waits
318 * until it is displayed and switch the two rendering buffers, preparing next
320 *****************************************************************************/
321 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
323 picture_t *p_outpic = NULL;
324 int i_col, i_row, i_vout, i_plane;
325 int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
329 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
331 pi_top_skip[i_plane] = 0;
334 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
336 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
338 pi_left_skip[i_plane] = 0;
341 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
343 if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
345 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
347 pi_left_skip[i_plane] +=
348 p_vout->p_sys->pp_vout[ i_vout ].i_width
349 * p_pic->p[i_plane].i_pitch / p_vout->output.i_width;
356 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
360 if( p_vout->b_die || p_vout->b_error )
363 p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
367 msleep( VOUT_OUTMEM_SLEEP );
370 vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
371 p_outpic, p_pic->date );
372 vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
375 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
377 uint8_t *p_in, *p_in_end, *p_out;
378 int i_in_pitch = p_pic->p[i_plane].i_pitch;
379 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
380 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
382 p_in = p_pic->p[i_plane].p_pixels
383 + pi_top_skip[i_plane] + pi_left_skip[i_plane];
385 p_in_end = p_in + p_outpic->p[i_plane].i_lines
386 * p_pic->p[i_plane].i_pitch;
388 p_out = p_outpic->p[i_plane].p_pixels;
390 while( p_in < p_in_end )
392 p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
394 p_out += i_out_pitch;
397 pi_left_skip[i_plane] += i_out_pitch;
400 vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
402 vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
408 for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
410 pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height
411 * p_pic->p[i_plane].i_lines
412 / p_vout->output.i_height
413 * p_pic->p[i_plane].i_pitch;
418 /*****************************************************************************
419 * RemoveAllVout: destroy all the child video output threads
420 *****************************************************************************/
421 static void RemoveAllVout( vout_thread_t *p_vout )
423 while( p_vout->p_sys->i_vout )
425 --p_vout->p_sys->i_vout;
426 if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
429 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
432 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
434 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
439 /*****************************************************************************
440 * SendEvents: forward mouse and keyboard events to the parent p_vout
441 *****************************************************************************/
442 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
443 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
445 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
447 vlc_value_t sentval = newval;
449 /* Find the video output index */
450 for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
452 if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
458 if( i_vout == p_vout->p_sys->i_vout )
463 /* Translate the mouse coordinates */
464 if( !strcmp( psz_var, "mouse-x" ) )
466 sentval.i_int += p_vout->output.i_width
467 * (i_vout % p_vout->p_sys->i_col)
468 / p_vout->p_sys->i_col;
470 else if( !strcmp( psz_var, "mouse-y" ) )
472 sentval.i_int += p_vout->output.i_height
473 * (i_vout / p_vout->p_sys->i_row)
474 / p_vout->p_sys->i_row;
477 var_Set( p_vout, psz_var, sentval );
482 /*****************************************************************************
483 * SendEventsToChild: forward events to the child/children vout
484 *****************************************************************************/
485 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
486 vlc_value_t oldval, vlc_value_t newval, void *p_data )
488 vout_thread_t *p_vout = (vout_thread_t *)p_this;
489 int i_row, i_col, i_vout = 0;
491 for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
493 for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
495 var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
496 if( !strcmp( psz_var, "fullscreen" ) ) break;