root/modules/misc/notify/xosd.c

Revision c205ecf91771514fe967f52c986eeb94491b327e, 10.4 kB (checked in by Christophe Mutricy <xtophe@videolan.org>, 2 months ago)

Compile fix after d228fdd28e

  • Property mode set to 100644
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1 /*****************************************************************************
2  * xosd.c : X On Screen Display interface
3  *****************************************************************************
4  * Copyright (C) 2001 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Loïc Minier <lool@videolan.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 #include <xosd.h>
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_playlist.h>
36 #include <vlc_input.h>
37 #include <vlc_interface.h>
38
39 #ifdef HAVE_UNISTD_H
40 #    include <unistd.h>
41 #endif
42
43 /*****************************************************************************
44  * intf_sys_t: description and status of rc interface
45  *****************************************************************************/
46 struct intf_sys_t
47 {
48     xosd * p_osd;               /* libxosd handle */
49     bool  b_need_update;   /* Update display ? */
50 };
51
52 #define MAX_LINE_LENGTH 256
53
54 /*****************************************************************************
55  * Local prototypes.
56  *****************************************************************************/
57 static int  Open         ( vlc_object_t * );
58 static void Close        ( vlc_object_t * );
59
60 static void Run          ( intf_thread_t * );
61
62 static int PlaylistNext( vlc_object_t *p_this, const char *psz_variable,
63                 vlc_value_t oval, vlc_value_t nval, void *param );
64
65 /*****************************************************************************
66  * Module descriptor
67  *****************************************************************************/
68 #define POSITION_TEXT N_("Flip vertical position")
69 #define POSITION_LONGTEXT N_("Display XOSD output at the bottom of the " \
70                              "screen instead of the top.")
71
72 #define TXT_OFS_TEXT N_("Vertical offset")
73 #define TXT_OFS_LONGTEXT N_("Vertical offset between the border of the screen "\
74                             "and the displayed text (in pixels, defaults to "\
75                             "30 pixels)." )
76
77 #define SHD_OFS_TEXT N_("Shadow offset")
78 #define SHD_OFS_LONGTEXT N_("Offset between the text and the shadow (in " \
79                             "pixels, defaults to 2 pixels)." )
80
81 #define FONT_TEXT N_("Font")
82 #define FONT_LONGTEXT N_("Font used to display text in the XOSD output.")
83 #define COLOUR_TEXT N_("Color")
84 #define COLOUR_LONGTEXT N_("Color used to display text in the XOSD output.")
85
86 vlc_module_begin();
87     set_category( CAT_INTERFACE );
88     set_subcategory( SUBCAT_INTERFACE_CONTROL );
89     set_description( N_("XOSD interface") );
90     set_shortname( "XOSD" );
91     add_bool( "xosd-position", 1, NULL, POSITION_TEXT, POSITION_LONGTEXT, true );
92     add_integer( "xosd-text-offset", 30, NULL, TXT_OFS_TEXT, TXT_OFS_LONGTEXT, true );
93     add_integer( "xosd-shadow-offset", 2, NULL,
94                  SHD_OFS_TEXT, SHD_OFS_LONGTEXT, true );
95     add_string( "xosd-font",
96                 "-adobe-helvetica-bold-r-normal-*-*-160-*-*-p-*-iso8859-1",
97                 NULL, FONT_TEXT, FONT_LONGTEXT, true );
98     add_string( "xosd-colour", "LawnGreen",
99                     NULL, COLOUR_TEXT, COLOUR_LONGTEXT, true );
100     set_capability( "interface", 10 );
101     set_callbacks( Open, Close );
102 vlc_module_end();
103
104 /*****************************************************************************
105  * Open: initialize and create stuff
106  *****************************************************************************/
107 static int Open( vlc_object_t *p_this )
108 {
109     intf_thread_t *p_intf = (intf_thread_t *)p_this;
110     xosd *p_osd;
111     char *psz_font, *psz_colour;
112
113     /* Allocate instance and initialize some members */
114     p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
115     if( p_intf->p_sys == NULL )
116     {
117         msg_Err( p_intf, "out of memory" );
118         return VLC_ENOMEM;
119     }
120
121     if( getenv( "DISPLAY" ) == NULL )
122     {
123         msg_Err( p_intf, "no display, please set the DISPLAY variable" );
124         return VLC_EGENERIC;
125     }
126
127     /* Initialize library */
128 #if defined(HAVE_XOSD_VERSION_0) || defined(HAVE_XOSD_VERSION_1)
129     psz_font = config_GetPsz( p_intf, "xosd-font" );
130     psz_colour = config_GetPsz( p_intf,"xosd-colour" );
131     p_osd  = p_intf->p_sys->p_osd = xosd_init( psz_font, psz_colour, 3,
132                                                XOSD_top, 0, 1 );
133     free( psz_font );
134     free( psz_colour );
135
136     if( p_intf->p_sys->p_osd == NULL )
137     {
138         msg_Err( p_intf, "couldn't initialize libxosd" );
139         return VLC_EGENERIC;
140     }
141 #else
142     p_osd = p_intf->p_sys->p_osd = xosd_create( 1 );
143     if( p_osd == NULL )
144     {
145         msg_Err( p_intf, "couldn't initialize libxosd" );
146         return VLC_EGENERIC;
147     }
148
149     psz_colour = config_GetPsz( p_intf,"xosd-colour" );
150     xosd_set_colour( p_osd, psz_colour );
151     xosd_set_timeout( p_osd, 3 );
152     free( psz_colour );
153 #endif
154
155
156     playlist_t *p_playlist = pl_Hold( p_intf );
157     var_AddCallback( p_playlist, "playlist-current", PlaylistNext, p_this );
158     var_AddCallback( p_playlist, "item-change", PlaylistNext, p_this );
159     pl_Release( p_intf );
160
161     /* Set user preferences */
162     psz_font = config_GetPsz( p_intf, "xosd-font" );
163     xosd_set_font( p_intf->p_sys->p_osd, psz_font );
164     free( psz_font );
165     xosd_set_outline_colour( p_intf->p_sys->p_osd,"black" );
166 #ifdef HAVE_XOSD_VERSION_2
167     xosd_set_horizontal_offset( p_intf->p_sys->p_osd,
168                     config_GetInt( p_intf, "xosd-text-offset" ) );
169     xosd_set_vertical_offset( p_intf->p_sys->p_osd,
170                     config_GetInt( p_intf, "xosd-text-offset" ) );
171 #else
172     xosd_set_offset( p_intf->p_sys->p_osd,
173                     config_GetInt( p_intf, "xosd-text-offset" ) );
174 #endif
175     xosd_set_shadow_offset( p_intf->p_sys->p_osd,
176                     config_GetInt( p_intf, "xosd-shadow-offset" ));
177     xosd_set_pos( p_intf->p_sys->p_osd,
178                     config_GetInt( p_intf, "xosd-position" ) ?
179                                          XOSD_bottom: XOSD_top );
180
181     /* Initialize to NULL */
182     xosd_display( p_osd, 0, XOSD_string, "XOSD interface initialized" );
183
184     p_intf->pf_run = Run;
185
186     p_intf->p_sys->b_need_update = true;
187
188     return VLC_SUCCESS;
189 }
190
191 /*****************************************************************************
192  * Close: destroy interface stuff
193  *****************************************************************************/
194 static void Close( vlc_object_t *p_this )
195 {
196     intf_thread_t *p_intf = (intf_thread_t *)p_this;
197     playlist_t *p_playlist = pl_Hold( p_intf );
198     var_DelCallback( p_playlist, "playlist-current", PlaylistNext, p_this );
199     var_DelCallback( p_playlist, "item-change", PlaylistNext, p_this );
200     pl_Release( p_intf );
201
202     /* Uninitialize library */
203     xosd_destroy( p_intf->p_sys->p_osd );
204
205     /* Destroy structure */
206     free( p_intf->p_sys );
207 }
208
209 /*****************************************************************************
210  * Run: xosd thread
211  *****************************************************************************
212  * This part of the interface runs in a separate thread
213  *****************************************************************************/
214 static void Run( intf_thread_t *p_intf )
215 {
216     playlist_t *p_playlist;
217     playlist_item_t *p_item = NULL;
218     input_item_t *p_input;
219     char psz_duration[MSTRTIME_MAX_SIZE+2];
220     char *psz_display = NULL;
221
222     for( ;; )
223     {
224         int canc = vlc_savecancel();
225         if( p_intf->p_sys->b_need_update == true )
226         {
227             p_intf->p_sys->b_need_update = false;
228             p_playlist = pl_Hold( p_intf );
229
230             if( playlist_IsEmpty( p_playlist ) )
231             {
232                 pl_Release( p_intf );
233                 continue;
234             }
235             free( psz_display );
236             psz_display = NULL;
237             int i_status = playlist_Status( p_playlist );
238             if( i_status == PLAYLIST_STOPPED )
239             {
240                 psz_display = strdup(_("Stop"));
241                 pl_Release( p_intf );
242             }
243             else if( i_status == PLAYLIST_PAUSED )
244             {
245                 psz_display = strdup(_("Pause"));
246                 pl_Release( p_intf );
247             }
248             else
249             {
250                 p_item = playlist_CurrentPlayingItem( p_playlist );
251                 p_input = p_item->p_input;
252
253                 pl_Release( p_intf );
254                 if( !p_item )
255                     continue;
256
257                 mtime_t i_duration = input_item_GetDuration( p_input );
258                 if( i_duration != -1 )
259                 {
260                     char psz_durationstr[MSTRTIME_MAX_SIZE];
261                     secstotimestr( psz_durationstr, i_duration / 1000000 );
262                     sprintf( psz_duration, "(%s)", psz_durationstr );
263                 }
264                 else
265                 {
266                     sprintf( psz_duration," " );
267                 }
268
269                 psz_display = (char *)malloc( sizeof(char )*
270                                           (strlen( p_input->psz_name ) +
271                                           MSTRTIME_MAX_SIZE + 2+6 + 10 +10 ));
272                 sprintf( psz_display,"%s %s",
273                          p_input->psz_name, psz_duration);
274             }
275
276             /* Display */
277             xosd_display( p_intf->p_sys->p_osd,
278                             0,                               /* first line */
279                             XOSD_string,
280                             psz_display );
281         }
282
283         vlc_restorecancel( canc );
284         msleep( INTF_IDLE_SLEEP );
285     }
286 }
287
288 static int PlaylistNext( vlc_object_t *p_this, const char *psz_variable,
289                 vlc_value_t oval, vlc_value_t nval, void *param )
290 {
291     intf_thread_t *p_intf = (intf_thread_t *)param;
292
293     p_intf->p_sys->b_need_update = true;
294     return VLC_SUCCESS;
295 }
296
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