+++ /dev/null
-/*****************************************************************************
- * xosd.c : X On Screen Display interface
- *****************************************************************************
- * Copyright (C) 2001 the VideoLAN team
- * $Id$
- *
- * Authors: Loïc Minier <lool@videolan.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_playlist.h>
-#include <vlc_input.h>
-#include <vlc_interface.h>
-#include <vlc_xlib.h>
-
-#include <xosd.h>
-
-/*****************************************************************************
- * intf_sys_t: description and status of rc interface
- *****************************************************************************/
-struct intf_sys_t
-{
- xosd * p_osd; /**< libxosd handle */
- bool b_need_update; /**< Update display ? */
- vlc_mutex_t lock; /**< state lock */
- vlc_cond_t cond; /**< update condition variable */
- vlc_thread_t thread; /**< interface thread handle */
-};
-
-#define MAX_LINE_LENGTH 256
-
-/*****************************************************************************
- * Local prototypes.
- *****************************************************************************/
-static int Open ( vlc_object_t * );
-static void Close ( vlc_object_t * );
-static void *Run ( void * );
-
-static int PlaylistNext ( vlc_object_t *p_this, const char *psz_variable,
- vlc_value_t oval, vlc_value_t nval, void *param );
-
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-#define POSITION_TEXT N_("Flip vertical position")
-#define POSITION_LONGTEXT N_("Display XOSD output at the bottom of the " \
- "screen instead of the top.")
-
-#define TXT_OFS_TEXT N_("Vertical offset")
-#define TXT_OFS_LONGTEXT N_("Vertical offset between the border of the screen "\
- "and the displayed text (in pixels, defaults to "\
- "30 pixels)." )
-
-#define SHD_OFS_TEXT N_("Shadow offset")
-#define SHD_OFS_LONGTEXT N_("Offset between the text and the shadow (in " \
- "pixels, defaults to 2 pixels)." )
-
-#define FONT_TEXT N_("Font")
-#define FONT_LONGTEXT N_("Font used to display text in the XOSD output.")
-#define COLOUR_TEXT N_("Color")
-#define COLOUR_LONGTEXT N_("Color used to display text in the XOSD output.")
-
-vlc_module_begin ()
- set_category( CAT_INTERFACE )
- set_subcategory( SUBCAT_INTERFACE_CONTROL )
- set_description( N_("XOSD interface") )
- set_shortname( "XOSD" )
- add_bool( "xosd-position", true, POSITION_TEXT, POSITION_LONGTEXT, true )
- add_integer( "xosd-text-offset", 30, TXT_OFS_TEXT, TXT_OFS_LONGTEXT, true )
- add_integer( "xosd-shadow-offset", 2,
- SHD_OFS_TEXT, SHD_OFS_LONGTEXT, true )
- add_string( "xosd-font", "-adobe-helvetica-bold-r-normal-*-*-160-*-*-p-*-iso8859-1",
- FONT_TEXT, FONT_LONGTEXT, true )
- add_string( "xosd-colour", "LawnGreen",
- COLOUR_TEXT, COLOUR_LONGTEXT, true )
- set_capability( "interface", 10 )
- set_callbacks( Open, Close )
-vlc_module_end ()
-
-/*****************************************************************************
- * Open: initialize and create stuff
- *****************************************************************************/
-static int Open( vlc_object_t *p_this )
-{
- intf_thread_t *p_intf = (intf_thread_t *)p_this;
- intf_sys_t *p_sys;
- xosd *p_osd;
- char *psz_font, *psz_colour;
-
- if (!vlc_xlib_init(p_this))
- return VLC_EGENERIC;
-
- if( getenv( "DISPLAY" ) == NULL )
- {
- msg_Err( p_intf, "no display, please set the DISPLAY variable" );
- return VLC_EGENERIC;
- }
-
- /* Allocate instance and initialize some members */
- p_sys = p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
- if( p_sys == NULL )
- return VLC_ENOMEM;
-
- /* Initialize library */
- psz_font = var_InheritString( p_intf, "xosd-font" );
- psz_colour = var_InheritString( p_intf, "xosd-colour" );
-
- p_osd = xosd_create( 1 );
- if( p_osd == NULL )
- {
- msg_Err( p_intf, "couldn't initialize libxosd" );
- free( psz_colour );
- free( psz_font );
- free( p_sys );
- return VLC_EGENERIC;
- }
- p_sys->p_osd = p_osd;
-
- /* Set user preferences */
- xosd_set_outline_colour( p_osd, "black" );
- xosd_set_font( p_osd, psz_font );
- xosd_set_colour( p_osd, psz_colour );
- xosd_set_timeout( p_osd, 3 );
- xosd_set_pos( p_osd, var_InheritBool( p_intf, "xosd-position" ) ?
- XOSD_bottom: XOSD_top );
- xosd_set_horizontal_offset( p_osd,
- var_InheritInteger( p_intf, "xosd-text-offset" ) );
- xosd_set_vertical_offset( p_osd,
- var_InheritInteger( p_intf, "xosd-text-offset" ) );
- xosd_set_shadow_offset( p_osd,
- var_InheritInteger( p_intf, "xosd-shadow-offset" ));
-
- /* Initialize to NULL */
- xosd_display( p_osd, 0, XOSD_string, "XOSD interface initialized" );
-
- free( psz_colour );
- free( psz_font );
-
- // Initialize mutex and condition variable before adding the callbacks
- vlc_mutex_init( &p_sys->lock );
- vlc_cond_init( &p_sys->cond );
- p_sys->b_need_update = true;
- if( vlc_clone( &p_sys->thread, VLC_THREAD_PRIORITY_LOW, Run, p_intf ) )
- goto error;
-
- // Add the callbacks
- playlist_t *p_playlist = pl_Get( p_intf );
- var_AddCallback( p_playlist, "item-current", PlaylistNext, p_this );
- var_AddCallback( p_playlist, "item-change", PlaylistNext, p_this );
-
- p_intf->pf_run = NULL;
- return VLC_SUCCESS;
-
-error:
- xosd_destroy( p_sys->p_osd );
- vlc_cond_destroy( &p_sys->cond );
- vlc_mutex_destroy( &p_sys->lock );
- free( p_sys );
- return VLC_ENOMEM;
-}
-
-/*****************************************************************************
- * Close: destroy interface stuff
- *****************************************************************************/
-static void Close( vlc_object_t *p_this )
-{
- intf_thread_t *p_intf = (intf_thread_t *)p_this;
- intf_sys_t *p_sys = p_intf->p_sys;
- playlist_t *p_playlist = pl_Get( p_intf );
-
- vlc_cancel( p_sys->thread );
-
- var_DelCallback( p_playlist, "item-current", PlaylistNext, p_this );
- var_DelCallback( p_playlist, "item-change", PlaylistNext, p_this );
-
- vlc_join( p_sys->thread, NULL );
- vlc_cond_destroy( &p_sys->cond );
- vlc_mutex_destroy( &p_sys->lock );
-
- /* Uninitialize library */
- xosd_destroy( p_sys->p_osd );
-
- /* Destroy structure */
- free( p_sys );
-}
-
-/*****************************************************************************
- * Run: xosd thread
- *****************************************************************************
- * This part of the interface runs in a separate thread
- *****************************************************************************/
-static void *Run( void *data )
-{
- intf_thread_t *p_intf = data;
- playlist_t *p_playlist;
- playlist_item_t *p_item = NULL;
- char *psz_display = NULL;
- int cancel = vlc_savecancel();
-
- for( ;; )
- {
- // Wait for a signal
- vlc_restorecancel( cancel );
- vlc_mutex_lock( &p_intf->p_sys->lock );
- mutex_cleanup_push( &p_intf->p_sys->lock );
- while( !p_intf->p_sys->b_need_update )
- vlc_cond_wait( &p_intf->p_sys->cond, &p_intf->p_sys->lock );
- p_intf->p_sys->b_need_update = false;
- vlc_cleanup_run();
-
- // Compute the signal
- cancel = vlc_savecancel();
- p_playlist = pl_Get( p_intf );
- PL_LOCK;
-
- // If the playlist is empty don't do anything
- if( playlist_IsEmpty( p_playlist ) )
- {
- PL_UNLOCK;
- continue;
- }
-
- free( psz_display );
- int i_status = playlist_Status( p_playlist );
- if( i_status == PLAYLIST_STOPPED )
- {
- psz_display = strdup(_("Stop"));
- }
- else if( i_status == PLAYLIST_PAUSED )
- {
- psz_display = strdup(_("Pause"));
- }
- else
- {
- p_item = playlist_CurrentPlayingItem( p_playlist );
- if( !p_item )
- {
- psz_display = NULL;
- PL_UNLOCK;
- continue;
- }
- input_item_t *p_input = p_item->p_input;
-
- mtime_t i_duration = input_item_GetDuration( p_input );
- if( i_duration != -1 )
- {
- char psz_durationstr[MSTRTIME_MAX_SIZE];
- secstotimestr( psz_durationstr, i_duration / 1000000 );
- if( asprintf( &psz_display, "%s (%s)", p_input->psz_name, psz_durationstr ) == -1 )
- psz_display = NULL;
- }
- else
- psz_display = strdup( p_input->psz_name );
- }
- PL_UNLOCK;
-
- /* Display */
- xosd_display( p_intf->p_sys->p_osd, 0, /* first line */
- XOSD_string, psz_display );
- }
-}
-
-static int PlaylistNext( vlc_object_t *p_this, const char *psz_variable,
- vlc_value_t oval, vlc_value_t nval, void *param )
-{
- (void)p_this; (void)psz_variable; (void)oval; (void)nval;
- intf_thread_t *p_intf = (intf_thread_t *)param;
-
- // Send the signal using the condition variable
- vlc_mutex_lock( &p_intf->p_sys->lock );
- p_intf->p_sys->b_need_update = true;
- vlc_cond_signal( &p_intf->p_sys->cond );
- vlc_mutex_unlock( &p_intf->p_sys->lock );
-
- return VLC_SUCCESS;
-}
-
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