mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-08 11:26:59 +02:00
645 lines
22 KiB
C
645 lines
22 KiB
C
/*****************************************************************************
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* wall.c : Wall video plugin for vlc
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*****************************************************************************
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* Copyright (C) 2000, 2001, 2002, 2003 the VideoLAN team
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* $Id$
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <stdlib.h> /* malloc(), free() */
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#include <string.h>
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#include <vlc/vlc.h>
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#include <vlc/vout.h>
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#include "filter_common.h"
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int Create ( vlc_object_t * );
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static void Destroy ( vlc_object_t * );
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static int Init ( vout_thread_t * );
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static void End ( vout_thread_t * );
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static void Render ( vout_thread_t *, picture_t * );
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static void RemoveAllVout ( vout_thread_t *p_vout );
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static int SendEvents( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define COLS_TEXT N_("Number of columns")
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#define COLS_LONGTEXT N_("Select the number of horizontal video windows in " \
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"which to split the video.")
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#define ROWS_TEXT N_("Number of rows")
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#define ROWS_LONGTEXT N_("Select the number of vertical video windows in " \
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"which to split the video.")
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#define ACTIVE_TEXT N_("Active windows")
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#define ACTIVE_LONGTEXT N_("Comma separated list of active windows, " \
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"defaults to all")
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#define ASPECT_TEXT N_("Element aspect ratio")
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#define ASPECT_LONGTEXT N_("The aspect ratio of the individual displays building the display wall")
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vlc_module_begin();
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set_description( _("Wall video filter") );
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set_shortname( N_("Image wall" ));
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set_capability( "video filter", 0 );
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set_category( CAT_VIDEO );
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set_subcategory( SUBCAT_VIDEO_VFILTER );
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add_integer( "wall-cols", 3, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
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add_integer( "wall-rows", 3, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
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add_string( "wall-active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT, VLC_FALSE );
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add_string( "wall-element-aspect", "4:3", NULL, ASPECT_TEXT, ASPECT_LONGTEXT, VLC_FALSE );
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add_shortcut( "wall" );
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set_callbacks( Create, Destroy );
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vlc_module_end();
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/*****************************************************************************
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* vout_sys_t: Wall video output method descriptor
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*****************************************************************************
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* This structure is part of the video output thread descriptor.
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* It describes the Wall specific properties of an output thread.
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*****************************************************************************/
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struct vout_sys_t
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{
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int i_col;
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int i_row;
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int i_vout;
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struct vout_list_t
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{
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vlc_bool_t b_active;
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int i_width;
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int i_height;
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int i_left;
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int i_top;
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vout_thread_t *p_vout;
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} *pp_vout;
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};
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/*****************************************************************************
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* Control: control facility for the vout (forwards to child vout)
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*****************************************************************************/
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static int Control( vout_thread_t *p_vout, int i_query, va_list args )
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{
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int i_row, i_col, i_vout = 0;
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for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
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{
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for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
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{
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vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
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i_query, args );
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i_vout++;
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}
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}
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Create: allocates Wall video thread output method
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*****************************************************************************
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* This function allocates and initializes a Wall vout method.
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*****************************************************************************/
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static int Create( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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char *psz_method, *psz_tmp, *psz_method_tmp;
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int i_vout;
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/* Allocate structure */
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p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
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if( p_vout->p_sys == NULL )
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{
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msg_Err( p_vout, "out of memory" );
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return VLC_ENOMEM;
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}
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p_vout->pf_init = Init;
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p_vout->pf_end = End;
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p_vout->pf_manage = NULL;
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p_vout->pf_render = Render;
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p_vout->pf_display = NULL;
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p_vout->pf_control = Control;
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/* Look what method was requested */
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p_vout->p_sys->i_col = config_GetInt( p_vout, "wall-cols" );
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p_vout->p_sys->i_row = config_GetInt( p_vout, "wall-rows" );
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p_vout->p_sys->i_col = __MAX( 1, __MIN( 15, p_vout->p_sys->i_col ) );
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p_vout->p_sys->i_row = __MAX( 1, __MIN( 15, p_vout->p_sys->i_row ) );
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msg_Dbg( p_vout, "opening a %i x %i wall",
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p_vout->p_sys->i_col, p_vout->p_sys->i_row );
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p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_row *
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p_vout->p_sys->i_col *
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sizeof(struct vout_list_t) );
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if( p_vout->p_sys->pp_vout == NULL )
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{
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msg_Err( p_vout, "out of memory" );
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free( p_vout->p_sys );
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return VLC_ENOMEM;
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}
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psz_method_tmp = psz_method = config_GetPsz( p_vout, "wall-active" );
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/* If no trailing vout are specified, take them all */
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if( psz_method == NULL )
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{
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for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
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i_vout--; )
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{
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p_vout->p_sys->pp_vout[i_vout].b_active = 1;
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}
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}
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/* If trailing vout are specified, activate only the requested ones */
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else
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{
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for( i_vout = p_vout->p_sys->i_row * p_vout->p_sys->i_col;
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i_vout--; )
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{
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p_vout->p_sys->pp_vout[i_vout].b_active = 0;
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}
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while( *psz_method )
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{
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psz_tmp = psz_method;
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while( *psz_tmp && *psz_tmp != ',' )
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{
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psz_tmp++;
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}
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if( *psz_tmp )
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{
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*psz_tmp = '\0';
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i_vout = atoi( psz_method );
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psz_method = psz_tmp + 1;
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}
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else
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{
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i_vout = atoi( psz_method );
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psz_method = psz_tmp;
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}
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if( i_vout >= 0 &&
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i_vout < p_vout->p_sys->i_row * p_vout->p_sys->i_col )
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{
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p_vout->p_sys->pp_vout[i_vout].b_active = 1;
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}
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}
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}
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free( psz_method_tmp );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Init: initialize Wall video thread output method
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*****************************************************************************/
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static int Init( vout_thread_t *p_vout )
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{
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int i_index, i_row, i_col, i_width, i_height, i_left, i_top;
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unsigned int i_target_width,i_target_height;
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picture_t *p_pic;
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video_format_t fmt = {0};
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int i_aspect = 4*VOUT_ASPECT_FACTOR/3;
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int i_align = 0;
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unsigned int i_hstart, i_hend, i_vstart, i_vend;
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unsigned int w1,h1,w2,h2;
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int i_xpos, i_ypos;
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int i_vstart_rounded = 0, i_hstart_rounded = 0;
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char *psz_aspect;
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psz_aspect = config_GetPsz( p_vout, "wall-element-aspect" );
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if( psz_aspect && *psz_aspect )
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{
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char *psz_parser = strchr( psz_aspect, ':' );
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if( psz_parser )
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{
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*psz_parser++ = '\0';
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i_aspect = atoi( psz_aspect ) * VOUT_ASPECT_FACTOR
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/ atoi( psz_parser );
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}
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else
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{
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msg_Warn( p_vout, "invalid aspect ratio specification" );
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}
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free( psz_aspect );
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}
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i_xpos = var_CreateGetInteger( p_vout, "video-x" );
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i_ypos = var_CreateGetInteger( p_vout, "video-y" );
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if( i_xpos < 0 ) i_xpos = 0;
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if( i_ypos < 0 ) i_ypos = 0;
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I_OUTPUTPICTURES = 0;
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/* Initialize the output structure */
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p_vout->output.i_chroma = p_vout->render.i_chroma;
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p_vout->output.i_width = p_vout->render.i_width;
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p_vout->output.i_height = p_vout->render.i_height;
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p_vout->output.i_aspect = p_vout->render.i_aspect;
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var_Create( p_vout, "align", VLC_VAR_INTEGER );
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fmt.i_width = fmt.i_visible_width = p_vout->render.i_width;
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fmt.i_height = fmt.i_visible_height = p_vout->render.i_height;
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fmt.i_x_offset = fmt.i_y_offset = 0;
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fmt.i_chroma = p_vout->render.i_chroma;
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fmt.i_aspect = p_vout->render.i_aspect;
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fmt.i_sar_num = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
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fmt.i_sar_den = VOUT_ASPECT_FACTOR;
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w1 = p_vout->output.i_width / p_vout->p_sys->i_col;
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w1 &= ~1;
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h1 = w1 * VOUT_ASPECT_FACTOR / i_aspect&~1;
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h1 &= ~1;
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h2 = p_vout->output.i_height / p_vout->p_sys->i_row&~1;
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h2 &= ~1;
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w2 = h2 * i_aspect / VOUT_ASPECT_FACTOR&~1;
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w2 &= ~1;
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if ( h1 * p_vout->p_sys->i_row < p_vout->output.i_height )
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{
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unsigned int i_tmp;
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i_target_width = w2;
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i_target_height = h2;
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i_vstart = 0;
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i_vend = p_vout->output.i_height;
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i_tmp = i_target_width * p_vout->p_sys->i_col;
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while( i_tmp < p_vout->output.i_width ) i_tmp += p_vout->p_sys->i_col;
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i_hstart = (( i_tmp - p_vout->output.i_width ) / 2)&~1;
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i_hstart_rounded = ( ( i_tmp - p_vout->output.i_width ) % 2 ) ||
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( ( ( i_tmp - p_vout->output.i_width ) / 2 ) & 1 );
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i_hend = i_hstart + p_vout->output.i_width;
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}
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else
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{
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unsigned int i_tmp;
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i_target_height = h1;
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i_target_width = w1;
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i_hstart = 0;
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i_hend = p_vout->output.i_width;
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i_tmp = i_target_height * p_vout->p_sys->i_row;
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while( i_tmp < p_vout->output.i_height ) i_tmp += p_vout->p_sys->i_row;
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i_vstart = ( ( i_tmp - p_vout->output.i_height ) / 2 ) & ~1;
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i_vstart_rounded = ( ( i_tmp - p_vout->output.i_height ) % 2 ) ||
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( ( ( i_tmp - p_vout->output.i_height ) / 2 ) & 1 );
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i_vend = i_vstart + p_vout->output.i_height;
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}
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msg_Dbg( p_vout, "target resolution %dx%d", i_target_width, i_target_height );
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/* Try to open the real video output */
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msg_Dbg( p_vout, "spawning the real video outputs" );
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p_vout->p_sys->i_vout = 0;
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msg_Dbg( p_vout, "target window (%d,%d)-(%d,%d)", i_hstart,i_vstart,i_hend,i_vend );
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i_top = 0;
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i_height = 0;
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for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
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{
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i_left = 0;
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i_top += i_height;
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for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
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{
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i_align = 0;
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if( i_col*i_target_width >= i_hstart &&
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(i_col+1)*i_target_width <= i_hend )
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{
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i_width = i_target_width;
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}
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else if( ( i_col + 1 ) * i_target_width < i_hstart ||
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( i_col * i_target_width ) > i_hend )
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{
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i_width = 0;
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}
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else
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{
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i_width = ( i_target_width - i_hstart % i_target_width );
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if( i_col >= ( p_vout->p_sys->i_col / 2 ) )
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{
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i_align |= VOUT_ALIGN_LEFT;
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i_width -= i_hstart_rounded ? 2: 0;
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}
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else
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{
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i_align |= VOUT_ALIGN_RIGHT;
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}
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}
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if( i_row * i_target_height >= i_vstart &&
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( i_row + 1 ) * i_target_height <= i_vend )
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{
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i_height = i_target_height;
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}
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else if( ( i_row + 1 ) * i_target_height < i_vstart ||
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( i_row * i_target_height ) > i_vend )
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{
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i_height = 0;
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}
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else
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{
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i_height = ( i_target_height -
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i_vstart%i_target_height );
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if( i_row >= ( p_vout->p_sys->i_row / 2 ) )
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{
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i_align |= VOUT_ALIGN_TOP;
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i_height -= i_vstart_rounded ? 2: 0;
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}
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else
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{
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i_align |= VOUT_ALIGN_BOTTOM;
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}
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}
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if( i_height == 0 || i_width == 0 )
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{
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active = VLC_FALSE;
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}
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_left = i_left;
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_top = i_top;
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i_left += i_width;
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if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
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{
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p_vout->p_sys->i_vout++;
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continue;
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}
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var_SetInteger( p_vout, "align", i_align );
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var_SetInteger( p_vout, "video-x", i_left + i_xpos - i_width);
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var_SetInteger( p_vout, "video-y", i_top + i_ypos );
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fmt.i_width = fmt.i_visible_width = i_width;
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fmt.i_height = fmt.i_visible_height = i_height;
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fmt.i_aspect = i_aspect * i_target_height / i_height *
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i_width / i_target_width;
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
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vout_Create( p_vout, &fmt );
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if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout )
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{
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msg_Err( p_vout, "failed to get %ix%i vout threads",
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p_vout->p_sys->i_col, p_vout->p_sys->i_row );
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RemoveAllVout( p_vout );
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return VLC_EGENERIC;
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}
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ADD_CALLBACKS(
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p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
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SendEvents );
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p_vout->p_sys->i_vout++;
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}
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}
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ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
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ADD_PARENT_CALLBACKS( SendEventsToChild );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* End: terminate Wall video thread output method
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*****************************************************************************/
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static void End( vout_thread_t *p_vout )
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{
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int i_index;
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/* Free the fake output buffers we allocated */
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for( i_index = I_OUTPUTPICTURES ; i_index ; )
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{
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i_index--;
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free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
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}
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}
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/*****************************************************************************
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* Destroy: destroy Wall video thread output method
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*****************************************************************************
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* Terminate an output method created by WallCreateOutputMethod
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*****************************************************************************/
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static void Destroy( vlc_object_t *p_this )
|
|
{
|
|
vout_thread_t *p_vout = (vout_thread_t *)p_this;
|
|
|
|
RemoveAllVout( p_vout );
|
|
|
|
DEL_PARENT_CALLBACKS( SendEventsToChild );
|
|
|
|
free( p_vout->p_sys->pp_vout );
|
|
free( p_vout->p_sys );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Render: displays previously rendered output
|
|
*****************************************************************************
|
|
* This function send the currently rendered image to Wall image, waits
|
|
* until it is displayed and switch the two rendering buffers, preparing next
|
|
* frame.
|
|
*****************************************************************************/
|
|
static void Render( vout_thread_t *p_vout, picture_t *p_pic )
|
|
{
|
|
picture_t *p_outpic = NULL;
|
|
int i_col, i_row, i_vout, i_plane;
|
|
int pi_left_skip[VOUT_MAX_PLANES], pi_top_skip[VOUT_MAX_PLANES];
|
|
|
|
i_vout = 0;
|
|
|
|
for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
|
|
{
|
|
for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
|
|
{
|
|
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
|
|
{
|
|
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;
|
|
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;
|
|
}
|
|
|
|
if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
|
|
{
|
|
i_vout++;
|
|
continue;
|
|
}
|
|
|
|
while( ( p_outpic =
|
|
vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
|
|
0, 0, 0 )
|
|
) == NULL )
|
|
{
|
|
if( p_vout->b_die || p_vout->b_error )
|
|
{
|
|
vout_DestroyPicture(
|
|
p_vout->p_sys->pp_vout[ i_vout ].p_vout, p_outpic );
|
|
return;
|
|
}
|
|
|
|
msleep( VOUT_OUTMEM_SLEEP );
|
|
}
|
|
|
|
vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
|
|
p_outpic, p_pic->date );
|
|
vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
|
|
p_outpic );
|
|
|
|
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
|
|
{
|
|
uint8_t *p_in, *p_in_end, *p_out;
|
|
int i_in_pitch = p_pic->p[i_plane].i_pitch;
|
|
int i_out_pitch = p_outpic->p[i_plane].i_pitch;
|
|
int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
|
|
|
|
p_in = p_pic->p[i_plane].p_pixels
|
|
+ pi_top_skip[i_plane] + pi_left_skip[i_plane];
|
|
|
|
p_in_end = p_in + p_outpic->p[i_plane].i_visible_lines
|
|
* p_pic->p[i_plane].i_pitch;
|
|
|
|
p_out = p_outpic->p[i_plane].p_pixels;
|
|
|
|
while( p_in < p_in_end )
|
|
{
|
|
p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
|
|
p_in += i_in_pitch;
|
|
p_out += i_out_pitch;
|
|
}
|
|
|
|
// pi_left_skip[i_plane] += i_copy_pitch;
|
|
}
|
|
|
|
vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
|
|
p_outpic );
|
|
vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
|
|
p_outpic );
|
|
|
|
i_vout++;
|
|
}
|
|
|
|
/* for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) */
|
|
/* { */
|
|
/* pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height */
|
|
/* * p_pic->p[i_plane].i_visible_lines */
|
|
/* / p_vout->output.i_height */
|
|
/* * p_pic->p[i_plane].i_pitch; */
|
|
/* } */
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* RemoveAllVout: destroy all the child video output threads
|
|
*****************************************************************************/
|
|
static void RemoveAllVout( vout_thread_t *p_vout )
|
|
{
|
|
while( p_vout->p_sys->i_vout )
|
|
{
|
|
--p_vout->p_sys->i_vout;
|
|
if( p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
|
|
{
|
|
DEL_CALLBACKS(
|
|
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
|
|
SendEvents );
|
|
vlc_object_detach(
|
|
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
|
|
vout_Destroy(
|
|
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* SendEvents: forward mouse and keyboard events to the parent p_vout
|
|
*****************************************************************************/
|
|
static int SendEvents( vlc_object_t *p_this, char const *psz_var,
|
|
vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
|
|
{
|
|
vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
|
|
int i_vout;
|
|
vlc_value_t sentval = newval;
|
|
|
|
/* Find the video output index */
|
|
for( i_vout = 0; i_vout < p_vout->p_sys->i_vout; i_vout++ )
|
|
{
|
|
if( p_this == (vlc_object_t *)p_vout->p_sys->pp_vout[ i_vout ].p_vout )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( i_vout == p_vout->p_sys->i_vout )
|
|
{
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
/* Translate the mouse coordinates */
|
|
if( !strcmp( psz_var, "mouse-x" ) )
|
|
{
|
|
sentval.i_int += p_vout->output.i_width
|
|
* (i_vout % p_vout->p_sys->i_col)
|
|
/ p_vout->p_sys->i_col;
|
|
}
|
|
else if( !strcmp( psz_var, "mouse-y" ) )
|
|
{
|
|
sentval.i_int += p_vout->output.i_height
|
|
* (i_vout / p_vout->p_sys->i_row)
|
|
/ p_vout->p_sys->i_row;
|
|
}
|
|
|
|
var_Set( p_vout, psz_var, sentval );
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* SendEventsToChild: forward events to the child/children vout
|
|
*****************************************************************************/
|
|
static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
|
|
vlc_value_t oldval, vlc_value_t newval, void *p_data )
|
|
{
|
|
vout_thread_t *p_vout = (vout_thread_t *)p_this;
|
|
int i_row, i_col, i_vout = 0;
|
|
|
|
for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
|
|
{
|
|
for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
|
|
{
|
|
var_Set( p_vout->p_sys->pp_vout[ i_vout ].p_vout, psz_var, newval);
|
|
if( !strcmp( psz_var, "fullscreen" ) ) break;
|
|
i_vout++;
|
|
}
|
|
}
|
|
|
|
return VLC_SUCCESS;
|
|
}
|