git.sesse.net Git - vlc/blob - modules/video_filter/wall.c

   1 /*****************************************************************************
   2  * wall.c : Wall video plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2000, 2001, 2002, 2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *
   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.
  13  *
  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.
  18  *
  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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc_common.h>
  33 #include <vlc_plugin.h>
  34 #include <vlc_vout.h>
  35 #include <assert.h>
  36
  37 #include "filter_common.h"
  38
  39 /*****************************************************************************
  40  * Local prototypes
  41  *****************************************************************************/
  42 static int  Create    ( vlc_object_t * );
  43 static void Destroy   ( vlc_object_t * );
  44
  45 static int  Init      ( vout_thread_t * );
  46 static void End       ( vout_thread_t * );
  47 static void Render    ( vout_thread_t *, picture_t * );
  48
  49 static void RemoveAllVout  ( vout_thread_t *p_vout );
  50
  51 static int  MouseEvent( vlc_object_t *, char const *,
  52                         vlc_value_t, vlc_value_t, void * );
  53 static int  FullscreenEventUp( vlc_object_t *, char const *,
  54                                vlc_value_t, vlc_value_t, void * );
  55 static int  FullscreenEventDown( vlc_object_t *, char const *,
  56                                  vlc_value_t, vlc_value_t, void * );
  57
  58 /*****************************************************************************
  59  * Module descriptor
  60  *****************************************************************************/
  61 #define COLS_TEXT N_("Number of columns")
  62 #define COLS_LONGTEXT N_("Number of horizontal windows in " \
  63     "which to split the video.")
  64
  65 #define ROWS_TEXT N_("Number of rows")
  66 #define ROWS_LONGTEXT N_("Number of vertical windows in " \
  67     "which to split the video.")
  68
  69 #define ACTIVE_TEXT N_("Active windows")
  70 #define ACTIVE_LONGTEXT N_("Comma-separated list of active windows, " \
  71     "defaults to all")
  72
  73 #define ASPECT_TEXT N_("Element aspect ratio")
  74 #define ASPECT_LONGTEXT N_("Aspect ratio of the individual displays " \
  75    "building the wall.")
  76
  77 #define CFG_PREFIX "wall-"
  78
  79 vlc_module_begin ()
  80     set_description( N_("Wall video filter") )
  81     set_shortname( N_("Image wall" ))
  82     set_capability( "video filter", 0 )
  83     set_category( CAT_VIDEO )
  84     set_subcategory( SUBCAT_VIDEO_VFILTER )
  85
  86     add_integer( CFG_PREFIX "cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, false )
  87     add_integer( CFG_PREFIX "rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, false )
  88     add_string( CFG_PREFIX "active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT,
  89                  true )
  90     add_string( CFG_PREFIX "element-aspect", "4:3", NULL, ASPECT_TEXT, ASPECT_LONGTEXT, false )
  91
  92     add_shortcut( "wall" )
  93     set_callbacks( Create, Destroy )
  94 vlc_module_end ()
  95
  96 static const char *const ppsz_filter_options[] = {
  97     "cols", "rows", "active", "element-aspect", NULL
  98 };
  99
 100 /*****************************************************************************
 101  * vout_sys_t: Wall video output method descriptor
 102  *****************************************************************************
 103  * This structure is part of the video output thread descriptor.
 104  * It describes the Wall specific properties of an output thread.
 105  *****************************************************************************/
 106 struct vout_sys_t
 107 {
 108     int    i_col;
 109     int    i_row;
 110     int    i_vout;
 111     struct vout_list_t
 112     {
 113         bool b_active;
 114         int i_width;
 115         int i_height;
 116         int i_left;
 117         int i_top;
 118         vout_thread_t *p_vout;
 119     } *pp_vout;
 120 };
 121
 122 /*****************************************************************************
 123  * Control: control facility for the vout (forwards to child vout)
 124  *****************************************************************************/
 125 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 126 {
 127     int i_row, i_col, i_vout = 0;
 128
 129     for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
 130     {
 131         for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
 132         {
 133             vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
 134                             i_query, args );
 135             i_vout++;
 136         }
 137     }
 138     return VLC_SUCCESS;
 139 }
 140
 141 /*****************************************************************************
 142  * Create: allocates Wall video thread output method
 143  *****************************************************************************
 144  * This function allocates and initializes a Wall vout method.
 145  *****************************************************************************/
 146 static int Create( vlc_object_t *p_this )
 147 {
 148     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 149     char *psz_method, *psz_tmp, *psz_method_tmp;
 150     int i_vout;
 151
 152     /* Allocate structure */
 153     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 154     if( p_vout->p_sys == NULL )
 155         return VLC_ENOMEM;
 156
 157     p_vout->pf_init = Init;
 158     p_vout->pf_end = End;
 159     p_vout->pf_manage = NULL;
 160     p_vout->pf_render = Render;
 161     p_vout->pf_display = NULL;
 162     p_vout->pf_control = Control;
 163
 164     config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options,
 165                        p_vout->p_cfg );
 166
 167     /* Look what method was requested */
 168     p_vout->p_sys->i_col = var_CreateGetInteger( p_vout, CFG_PREFIX "cols" );
 169     p_vout->p_sys->i_row = var_CreateGetInteger( p_vout, CFG_PREFIX "rows" );
 170
 171     p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
 172     p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
 173
 174     msg_Dbg( p_vout, "opening a %i x %i wall",
 175              p_vout->p_sys->i_col, p_vout->p_sys->i_row );
 176
 177     p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
 178                                      p_vout->p_sys->i_col *
 179                                      sizeof(struct vout_list_t) );
 180     if( p_vout->p_sys->pp_vout == NULL )
 181     {
 182         free( p_vout->p_sys );
 183         return VLC_ENOMEM;
 184     }
 185
 186     psz_method_tmp =
 187     psz_method = var_CreateGetNonEmptyString( p_vout, CFG_PREFIX "active" );
 188
 189     /* If no trailing vout are specified, take them all */
 190     if( psz_method == NULL )
 191     {
 192         for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
 193              i_vout--; )
 194         {
 195             p_vout->p_sys->pp_vout[i_vout].b_active = 1;
 196         }
 197     }
 198     /* If trailing vout are specified, activate only the requested ones */
 199     else
 200     {
 201         for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
 202              i_vout--; )
 203         {
 204             p_vout->p_sys->pp_vout[i_vout].b_active = 0;
 205         }
 206
 207         while( *psz_method )
 208         {
 209             psz_tmp = psz_method;
 210             while( *psz_tmp && *psz_tmp != ',' )
 211             {
 212                 psz_tmp++;
 213             }
 214
 215             if( *psz_tmp )
 216             {
 217                 *psz_tmp = '\0';
 218                 i_vout = atoi( psz_method );
 219                 psz_method = psz_tmp + 1;
 220             }
 221             else
 222             {
 223                 i_vout = atoi( psz_method );
 224                 psz_method = psz_tmp;
 225             }
 226
 227             if( i_vout >= 0 &&
 228                 i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
 229             {
 230                 p_vout->p_sys->pp_vout[i_vout].b_active = 1;
 231             }
 232         }
 233     }
 234
 235     free( psz_method_tmp );
 236
 237     return VLC_SUCCESS;
 238 }
 239
 240 /*****************************************************************************
 241  * Init: initialize Wall video thread output method
 242  *****************************************************************************/
 243 static int Init( vout_thread_t *p_vout )
 244 {
 245     int i_row, i_col, i_width, i_height, i_left, i_top;
 246     unsigned int i_target_width,i_target_height;
 247     video_format_t fmt;
 248     int i_aspect = 4*VOUT_ASPECT_FACTOR/3;
 249     int i_align = 0;
 250     unsigned int i_hstart, i_hend, i_vstart, i_vend;
 251     unsigned int w1,h1,w2,h2;
 252     int i_xpos, i_ypos;
 253     int i_vstart_rounded = 0, i_hstart_rounded = 0;
 254     char *psz_aspect;
 255
 256     memset( &fmt, 0, sizeof(video_format_t) );
 257
 258     psz_aspect = var_CreateGetNonEmptyString( p_vout,
 259                                               CFG_PREFIX "element-aspect" );
 260     if( psz_aspect && *psz_aspect )
 261     {
 262         char *psz_parser = strchr( psz_aspect, ':' );
 263         if( psz_parser )
 264         {
 265             *psz_parser++ = '\0';
 266             i_aspect = atoi( psz_aspect ) * VOUT_ASPECT_FACTOR
 267                 / atoi( psz_parser );
 268         }
 269         else
 270         {
 271             msg_Warn( p_vout, "invalid aspect ratio specification" );
 272         }
 273     }
 274     free( psz_aspect );
 275
 276     i_xpos = var_CreateGetInteger( p_vout, "video-x" );
 277     i_ypos = var_CreateGetInteger( p_vout, "video-y" );
 278     if( i_xpos < 0 ) i_xpos = 0;
 279     if( i_ypos < 0 ) i_ypos = 0;
 280
 281     I_OUTPUTPICTURES = 0;
 282
 283     /* Initialize the output structure */
 284     p_vout->output.i_chroma = p_vout->render.i_chroma;
 285     p_vout->output.i_width  = p_vout->render.i_width;
 286     p_vout->output.i_height = p_vout->render.i_height;
 287     p_vout->output.i_aspect = p_vout->render.i_aspect;
 288     var_Create( p_vout, "align", VLC_VAR_INTEGER );
 289
 290     fmt.i_width = fmt.i_visible_width = p_vout->render.i_width;
 291     fmt.i_height = fmt.i_visible_height = p_vout->render.i_height;
 292     fmt.i_x_offset = fmt.i_y_offset = 0;
 293     fmt.i_chroma = p_vout->render.i_chroma;
 294     fmt.i_aspect = p_vout->render.i_aspect;
 295     fmt.i_sar_num = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
 296     fmt.i_sar_den = VOUT_ASPECT_FACTOR;
 297
 298     w1 = p_vout->output.i_width / p_vout->p_sys->i_col;
 299     w1 &= ~1;
 300     h1 = w1 * VOUT_ASPECT_FACTOR / i_aspect&~1;
 301     h1 &= ~1;
 302
 303     h2 = p_vout->output.i_height / p_vout->p_sys->i_row&~1;
 304     h2 &= ~1;
 305     w2 = h2 * i_aspect / VOUT_ASPECT_FACTOR&~1;
 306     w2 &= ~1;
 307
 308     if ( h1 * p_vout->p_sys->i_row < p_vout->output.i_height )
 309     {
 310         unsigned int i_tmp;
 311         i_target_width = w2;
 312         i_target_height = h2;
 313         i_vstart = 0;
 314         i_vend = p_vout->output.i_height;
 315         i_tmp = i_target_width * p_vout->p_sys->i_col;
 316         while( i_tmp < p_vout->output.i_width ) i_tmp += p_vout->p_sys->i_col;
 317         i_hstart = (( i_tmp - p_vout->output.i_width ) / 2)&~1;
 318         i_hstart_rounded  = ( ( i_tmp - p_vout->output.i_width ) % 2 ) ||
 319             ( ( ( i_tmp - p_vout->output.i_width ) / 2 ) & 1 );
 320         i_hend = i_hstart + p_vout->output.i_width;
 321     }
 322     else
 323     {
 324         unsigned int i_tmp;
 325         i_target_height = h1;
 326         i_target_width = w1;
 327         i_hstart = 0;
 328         i_hend = p_vout->output.i_width;
 329         i_tmp = i_target_height * p_vout->p_sys->i_row;
 330         while( i_tmp < p_vout->output.i_height ) i_tmp += p_vout->p_sys->i_row;
 331         i_vstart = ( ( i_tmp - p_vout->output.i_height ) / 2 ) & ~1;
 332         i_vstart_rounded  = ( ( i_tmp - p_vout->output.i_height ) % 2 ) ||
 333             ( ( ( i_tmp - p_vout->output.i_height ) / 2 ) & 1 );
 334         i_vend = i_vstart + p_vout->output.i_height;
 335     }
 336     msg_Dbg( p_vout, "target resolution %dx%d", i_target_width, i_target_height );
 337
 338     /* Try to open the real video output */
 339     msg_Dbg( p_vout, "spawning the real video outputs" );
 340
 341     p_vout->p_sys->i_vout = 0;
 342     msg_Dbg( p_vout, "target window (%d,%d)-(%d,%d)", i_hstart,i_vstart,i_hend,i_vend );
 343
 344
 345     i_top = 0;
 346     i_height = 0;
 347     for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
 348     {
 349         i_left = 0;
 350         i_top += i_height;
 351         for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
 352         {
 353             i_align = 0;
 354
 355             if( i_col*i_target_width >= i_hstart &&
 356                 (i_col+1)*i_target_width <= i_hend )
 357             {
 358                 i_width = i_target_width;
 359             }
 360             else if( ( i_col + 1 ) * i_target_width < i_hstart ||
 361                      ( i_col * i_target_width ) > i_hend )
 362             {
 363                 i_width = 0;
 364             }
 365             else
 366             {
 367                 i_width = ( i_target_width - i_hstart % i_target_width );
 368                 if( i_col >= ( p_vout->p_sys->i_col / 2 ) )
 369                 {
 370                     i_align |= VOUT_ALIGN_LEFT;
 371                     i_width -= i_hstart_rounded ? 2: 0;
 372                 }
 373                 else
 374                 {
 375                     i_align |= VOUT_ALIGN_RIGHT;
 376                 }
 377             }
 378
 379             if( i_row * i_target_height >= i_vstart &&
 380                 ( i_row + 1 ) * i_target_height <= i_vend )
 381             {
 382                 i_height = i_target_height;
 383             }
 384             else if( ( i_row + 1 ) * i_target_height < i_vstart ||
 385                      ( i_row * i_target_height ) > i_vend )
 386             {
 387                 i_height = 0;
 388             }
 389             else
 390             {
 391                 i_height = ( i_target_height -
 392                              i_vstart%i_target_height );
 393                 if(  i_row >= ( p_vout->p_sys->i_row / 2 ) )
 394                 {
 395                     i_align |= VOUT_ALIGN_TOP;
 396                     i_height -= i_vstart_rounded ? 2: 0;
 397                 }
 398                 else
 399                 {
 400                     i_align |= VOUT_ALIGN_BOTTOM;
 401                 }
 402             }
 403             if( i_height == 0 || i_width == 0 )
 404             {
 405                 p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active = false;
 406             }
 407
 408             p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
 409             p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
 410             p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_left = i_left;
 411             p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_top = i_top;
 412             i_left += i_width;
 413
 414             if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
 415             {
 416                 p_vout->p_sys->i_vout++;
 417                 continue;
 418             }
 419             var_SetInteger( p_vout, "align", i_align );
 420             var_SetInteger( p_vout, "video-x", i_left + i_xpos - i_width);
 421             var_SetInteger( p_vout, "video-y", i_top + i_ypos );
 422
 423             fmt.i_width = fmt.i_visible_width = i_width;
 424             fmt.i_height = fmt.i_visible_height = i_height;
 425             fmt.i_aspect = i_aspect * i_target_height / i_height *
 426                 i_width / i_target_width;
 427
 428             p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
 429                 vout_Create( p_vout, &fmt );
 430             if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout )
 431             {
 432                 msg_Err( p_vout, "failed to get %ix%i vout threads",
 433                                  p_vout->p_sys->i_col, p_vout->p_sys->i_row );
 434                 RemoveAllVout( p_vout );
 435                 return VLC_EGENERIC;
 436             }
 437             vout_filter_SetupChild( p_vout, p_vout->p_sys->pp_vout[p_vout->p_sys->i_vout].p_vout,
 438                                     MouseEvent, FullscreenEventUp, FullscreenEventDown, true );
 439             p_vout->p_sys->i_vout++;
 440         }
 441     }
 442
 443     vout_filter_AllocateDirectBuffers( p_vout, VOUT_MAX_PICTURES );
 444
 445     return VLC_SUCCESS;
 446 }
 447
 448 /*****************************************************************************
 449  * End: terminate Wall video thread output method
 450  *****************************************************************************/
 451 static void End( vout_thread_t *p_vout )
 452 {
 453     RemoveAllVout( p_vout );
 454
 455     vout_filter_ReleaseDirectBuffers( p_vout );
 456 }
 457
 458 /*****************************************************************************
 459  * Destroy: destroy Wall video thread output method
 460  *****************************************************************************
 461  * Terminate an output method created by WallCreateOutputMethod
 462  *****************************************************************************/
 463 static void Destroy( vlc_object_t *p_this )
 464 {
 465     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 466
 467
 468     free( p_vout->p_sys->pp_vout );
 469     free( p_vout->p_sys );
 470 }
 471
 472 /*****************************************************************************
 473  * Render: displays previously rendered output
 474  *****************************************************************************
 475  * This function send the currently rendered image to Wall image, waits
 476  * until it is displayed and switch the two rendering buffers, preparing next
 477  * frame.
 478  *****************************************************************************/
 479 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 480 {
 481     picture_t *p_outpic = NULL;
 482     int i_col, i_row, i_vout, i_plane;
 483     int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
 484
 485     i_vout = 0;
 486
 487     for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
 488     {
 489         for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
 490         {
 491             for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 492             {
 493                 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;
 494                 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;
 495             }
 496
 497             if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
 498             {
 499                 i_vout++;
 500                 continue;
 501             }
 502
 503             while( ( p_outpic =
 504                 vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
 505                                     0, 0, 0 )
 506                    ) == NULL )
 507             {
 508                 if( !vlc_object_alive (p_vout) || p_vout->b_error )
 509                 {
 510                     vout_DestroyPicture(
 511                         p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
 512                     return;
 513                 }
 514
 515                 msleep( VOUT_OUTMEM_SLEEP );
 516             }
 517             p_outpic->date = p_pic->date;
 518
 519             vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
 520                               p_outpic );
 521
 522             for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 523             {
 524                 uint8_t *p_in, *p_in_end, *p_out;
 525                 int i_in_pitch = p_pic->p[i_plane].i_pitch;
 526                 int i_out_pitch = p_outpic->p[i_plane].i_pitch;
 527                 int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
 528
 529                 p_in = p_pic->p[i_plane].p_pixels
 530                         + pi_top_skip[i_plane] + pi_left_skip[i_plane];
 531
 532                 p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
 533                                    * p_pic->p[i_plane].i_pitch;
 534
 535                 p_out = p_outpic->p[i_plane].p_pixels;
 536
 537                 while( p_in < p_in_end )
 538                 {
 539                     vlc_memcpy( p_out, p_in, i_copy_pitch );
 540                     p_in += i_in_pitch;
 541                     p_out += i_out_pitch;
 542                 }
 543
 544 //                pi_left_skip[i_plane] += i_copy_pitch;
 545             }
 546
 547             vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
 548                                 p_outpic );
 549             vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
 550                                  p_outpic );
 551
 552             i_vout++;
 553         }
 554
 555 /*         for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) */
 556 /*         { */
 557 /*             pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height */
 558 /*                                      * p_pic->p[i_plane].i_visible_lines */
 559 /*                                      / p_vout->output.i_height */
 560 /*                                      * p_pic->p[i_plane].i_pitch; */
 561 /*         } */
 562     }
 563 }
 564
 565 /*****************************************************************************
 566  * RemoveAllVout: destroy all the child video output threads
 567  *****************************************************************************/
 568 static void RemoveAllVout( vout_thread_t *p_vout )
 569 {
 570     vout_sys_t *p_sys = p_vout->p_sys;
 571
 572     while( p_sys->i_vout )
 573     {
 574         p_sys->i_vout--;
 575         if( p_sys->pp_vout[p_sys->i_vout ].b_active )
 576         {
 577             vout_filter_SetupChild( p_vout, p_sys->pp_vout[p_sys->i_vout].p_vout,
 578                                     MouseEvent, FullscreenEventUp, FullscreenEventDown, false );
 579             vout_CloseAndRelease( p_sys->pp_vout[p_sys->i_vout].p_vout );
 580         }
 581     }
 582 }
 583
 584 /**
 585  * Forward mouse event with proper conversion.
 586  */
 587 static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
 588                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 589 {
 590     vout_thread_t *p_vout = p_data;
 591     vout_sys_t *p_sys = p_vout->p_sys;
 592     VLC_UNUSED(oldval);
 593     int i_vout;
 594
 595     /* Find the video output index */
 596     for( i_vout = 0; i_vout < p_sys->i_vout; i_vout++ )
 597     {
 598         if( p_sys->pp_vout[i_vout].b_active &&
 599             p_this == VLC_OBJECT(p_sys->pp_vout[i_vout].p_vout) )
 600             break;
 601     }
 602     assert( i_vout < p_vout->p_sys->i_vout );
 603
 604     /* Translate the mouse coordinates */
 605     if( !strcmp( psz_var, "mouse-x" ) )
 606         newval.i_int += p_vout->output.i_width * (i_vout % p_sys->i_col) / p_sys->i_col;
 607     else if( !strcmp( psz_var, "mouse-y" ) )
 608         newval.i_int += p_vout->output.i_height * (i_vout / p_sys->i_row) / p_sys->i_row;
 609
 610     return var_Set( p_vout, psz_var, newval );
 611 }
 612
 613 /**
 614  * Forward fullscreen event to/from the childrens.
 615  */
 616 static bool IsFullscreenActive( vout_thread_t *p_vout )
 617 {
 618     vout_sys_t *p_sys = p_vout->p_sys;
 619     for( int i = 0; i < p_sys->i_vout; i++ )
 620     {
 621         if( p_sys->pp_vout[i].b_active &&
 622             var_GetBool( p_sys->pp_vout[i].p_vout, "fullscreen" ) )
 623             return true;
 624     }
 625     return false;
 626 }
 627 static int FullscreenEventUp( vlc_object_t *p_this, char const *psz_var,
 628                               vlc_value_t oldval, vlc_value_t newval, void *p_data )
 629 {
 630     vout_thread_t *p_vout = p_data;
 631     VLC_UNUSED(oldval); VLC_UNUSED(p_this); VLC_UNUSED(psz_var); VLC_UNUSED(newval);
 632
 633     const bool b_fullscreen = IsFullscreenActive( p_vout );
 634     if( !var_GetBool( p_vout, "fullscreen" ) != !b_fullscreen )
 635         return var_SetBool( p_vout, "fullscreen", b_fullscreen );
 636     return VLC_SUCCESS;
 637 }
 638 static int FullscreenEventDown( vlc_object_t *p_this, char const *psz_var,
 639                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
 640 {
 641     vout_thread_t *p_vout = (vout_thread_t*)p_this;
 642     vout_sys_t *p_sys = p_vout->p_sys;
 643     VLC_UNUSED(oldval); VLC_UNUSED(p_data); VLC_UNUSED(psz_var);
 644
 645     const bool b_fullscreen = IsFullscreenActive( p_vout );
 646     if( !b_fullscreen != !newval.b_bool )
 647     {
 648         for( int i = 0; i < p_sys->i_vout; i++ )
 649         {
 650             if( !p_sys->pp_vout[i].b_active )
 651                 continue;
 652
 653             vout_thread_t *p_child = p_sys->pp_vout[i].p_vout;
 654             if( !var_GetBool( p_child, "fullscreen" ) != !newval.b_bool )
 655             {
 656                 var_SetBool( p_child, "fullscreen", newval.b_bool );
 657                 if( newval.b_bool )
 658                     return VLC_SUCCESS;
 659             }
 660         }
 661     }
 662     return VLC_SUCCESS;
 663 }
 664