3 * @brief Legacy monolithic LibVLC video window provider
5 /*****************************************************************************
6 * Copyright © 2009 Rémi Denis-Courmont
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2.0
11 * of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 ****************************************************************************/
30 #include <vlc_common.h>
31 #include <vlc_plugin.h>
33 #include <vlc_window.h>
35 static int OpenXID (vlc_object_t *);
36 static int OpenHWND (vlc_object_t *);
37 static void Close (vlc_object_t *);
39 #define XID_TEXT N_("ID of the video output X window")
40 #define XID_LONGTEXT N_( \
41 "VLC can embed its video output in an existing X11 window. " \
42 "This is the X identifier of that window (0 means none).")
48 set_shortname (N_("Drawable"))
49 set_description (N_("Embedded X window video"))
50 set_category (CAT_VIDEO)
51 set_subcategory (SUBCAT_VIDEO_VOUT)
52 set_capability ("xwindow", 70)
53 set_callbacks (OpenXID, Close)
54 add_integer ("drawable-xid", 0, NULL, XID_TEXT, XID_LONGTEXT, true)
56 /*change_integer_range (0, 0xffffffff)*/
59 set_description (N_("Embedded Windows video"))
60 set_capability ("hwnd", 70)
61 set_callbacks (OpenHWND, Close)
65 static int Control (vout_window_t *, int, va_list);
68 * Find the drawable set by libvlc application.
70 static int Open (vlc_object_t *obj, const char *varname, bool ptr)
72 static vlc_mutex_t serializer = VLC_STATIC_MUTEX;
73 vout_window_t *wnd = (vout_window_t *)obj;
74 vlc_value_t val, globval;
76 if (var_Create (obj->p_libvlc, "drawable-busy", VLC_VAR_BOOL)
77 || var_Create (obj, varname, VLC_VAR_DOINHERIT
78 | (ptr ? VLC_VAR_ADDRESS : VLC_VAR_INTEGER)))
80 var_Get (obj, varname, &val);
82 vlc_mutex_lock (&serializer);
83 /* Note: We cannot simply clear the drawable variable.
84 * It would break libvlc_video_get_parent(). */
85 var_Get (obj->p_libvlc, varname, &globval);
86 if (ptr ? (val.p_address == globval.p_address)
87 : (val.i_int == globval.i_int))
89 if (var_GetBool (obj->p_libvlc, "drawable-busy"))
90 { /* LibVLC-wide drawable already in use */
97 var_SetBool (obj->p_libvlc, "drawable-busy", true);
99 /* If we got a drawable _not_ from the root object (from the input?),
100 * We assume it is not busy. This is a bug. */
101 vlc_mutex_unlock (&serializer);
103 var_Destroy (obj, varname);
105 if (ptr ? (val.p_address == NULL) : (val.i_int == 0))
107 var_Destroy (obj->p_libvlc, "drawable-busy");
112 wnd->handle.hwnd = val.p_address;
114 wnd->handle.xid = val.i_int;
116 /* FIXME: check that X server matches --x11-display (if specified) */
117 /* FIXME: get window size (in platform-dependent ways) */
119 wnd->control = Control;
123 static int OpenXID (vlc_object_t *obj)
125 return Open (obj, "drawable-xid", false);
128 static int OpenHWND (vlc_object_t *obj)
130 return Open (obj, "drawable-hwnd", true);
135 * Release the drawable.
137 static void Close (vlc_object_t *obj)
139 /* This is atomic with regards to var_GetBool() in Open(): */
140 var_SetBool (obj->p_libvlc, "drawable-busy", false);
142 /* Variables are reference-counted... */
143 var_Destroy (obj->p_libvlc, "drawable-busy");
147 static int Control (vout_window_t *wnd, int query, va_list ap)
151 case VOUT_SET_SIZE: /* not allowed */
152 case VOUT_SET_STAY_ON_TOP: /* not allowed either, would be ugly */
156 msg_Warn (wnd, "unsupported control query %d", query);