1 /*****************************************************************************
2 * vout_intf.c : video output interface
3 *****************************************************************************
4 * Copyright (C) 2000-2004 VideoLAN
5 * $Id: video_output.c 6961 2004-03-05 17:34:23Z sam $
7 * Authors: Gildas Bazin <gbazin@videolan.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> /* free() */
31 #include "vlc_video.h"
32 #include "video_output.h"
33 #include "vlc_interface.h"
35 /*****************************************************************************
37 *****************************************************************************/
39 /* Object variables callbacks */
40 static int ZoomCallback( vlc_object_t *, char const *,
41 vlc_value_t, vlc_value_t, void * );
43 /*****************************************************************************
44 * vout_RequestWindow: Create/Get a video window if possible.
45 *****************************************************************************
46 * This function looks for the main interface and tries to request
47 * a new video window. If it fails then the vout will still need to create the
49 *****************************************************************************/
50 void *vout_RequestWindow( vout_thread_t *p_vout,
51 int *pi_x_hint, int *pi_y_hint,
52 unsigned int *pi_width_hint,
53 unsigned int *pi_height_hint )
55 intf_thread_t *p_intf;
59 /* Get requested coordinates */
60 var_Get( p_vout, "video-x", &val );
61 *pi_x_hint = val.i_int ;
62 var_Get( p_vout, "video-y", &val );
63 *pi_y_hint = val.i_int;
65 *pi_width_hint = p_vout->i_window_width;
66 *pi_height_hint = p_vout->i_window_height;
68 /* Check whether someone provided us with a window ID */
69 var_Get( p_vout->p_vlc, "drawable", &val );
70 if( val.i_int ) return (void *)val.i_int;
72 /* Find the main interface */
73 p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF, FIND_ANYWHERE );
74 if( !p_intf ) return NULL;
76 if( !p_intf->pf_request_window )
78 vlc_object_release( p_intf );
82 p_window = p_intf->pf_request_window( p_intf, p_vout, pi_x_hint, pi_y_hint,
83 pi_width_hint, pi_height_hint );
84 vlc_object_release( p_intf );
89 void vout_ReleaseWindow( vout_thread_t *p_vout, void *p_window )
91 intf_thread_t *p_intf;
93 /* Find the main interface */
94 p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF, FIND_ANYWHERE );
97 if( !p_intf->pf_release_window )
99 msg_Err( p_vout, "no pf_release_window");
100 vlc_object_release( p_intf );
104 p_intf->pf_release_window( p_intf, p_window );
105 vlc_object_release( p_intf );
108 int vout_ControlWindow( vout_thread_t *p_vout, void *p_window,
109 int i_query, va_list args )
111 intf_thread_t *p_intf;
114 /* Find the main interface */
115 p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF, FIND_ANYWHERE );
116 if( !p_intf ) return VLC_EGENERIC;
118 if( !p_intf->pf_control_window )
120 msg_Err( p_vout, "no pf_control_window");
121 vlc_object_release( p_intf );
125 i_ret = p_intf->pf_control_window( p_intf, p_window, i_query, args );
126 vlc_object_release( p_intf );
130 /*****************************************************************************
131 * vout_IntfInit: called during the vout creation to initialise misc things.
132 *****************************************************************************/
133 void vout_IntfInit( vout_thread_t *p_vout )
135 vlc_value_t val, text, old_val;
137 /* Create a few object variables we'll need later on */
138 var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
139 var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
140 var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
141 var_Create( p_vout, "align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
142 var_Create( p_vout, "video-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
143 var_Create( p_vout, "video-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
145 var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_ISCOMMAND |
146 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
148 text.psz_string = _("Zoom");
149 var_Change( p_vout, "zoom", VLC_VAR_SETTEXT, &text, NULL );
151 var_Get( p_vout, "zoom", &old_val );
152 if( old_val.f_float == 0.25 ||
153 old_val.f_float == 0.5 ||
154 old_val.f_float == 1 ||
155 old_val.f_float == 2 )
157 var_Change( p_vout, "zoom", VLC_VAR_DELCHOICE, &old_val, NULL );
160 val.f_float = 0.25; text.psz_string = _("1:4 Quater");
161 var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
162 val.f_float = 0.5; text.psz_string = _("1:2 Half");
163 var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
164 val.f_float = 1; text.psz_string = _("1:1 Original");
165 var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
166 val.f_float = 2; text.psz_string = _("2:1 Double");
167 var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
169 var_Set( p_vout, "zoom", old_val );
171 var_AddCallback( p_vout, "zoom", ZoomCallback, NULL );
174 /*****************************************************************************
175 * Object variables callbacks
176 *****************************************************************************/
177 static int ZoomCallback( vlc_object_t *p_this, char const *psz_cmd,
178 vlc_value_t oldval, vlc_value_t newval, void *p_data )
180 vout_thread_t *p_vout = (vout_thread_t *)p_this;
181 vout_Control( p_vout, VOUT_SET_ZOOM, newval.f_float );