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
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 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>
32 #include <vlc_vout_window.h>
34 #define HWND_TEXT N_("Window handle (HWND)")
35 #define HWND_LONGTEXT N_( \
36 "Video will be embedded in this pre-existing window. " \
37 "If zero, a new window will be created.")
39 static int Open (vout_window_t *, const vout_window_cfg_t *);
40 static void Close(vout_window_t *);
46 set_shortname (N_("Drawable"))
47 set_description (N_("Embedded window video"))
48 set_category (CAT_VIDEO)
49 set_subcategory (SUBCAT_VIDEO_VOUT)
50 set_capability ("vout window hwnd", 0)
51 set_callbacks (Open, Close)
52 add_shortcut ("embed-hwnd")
54 add_integer ("drawable-hwnd", 0, HWND_TEXT, HWND_LONGTEXT, true)
58 static int Control (vout_window_t *, int, va_list);
60 /* Keep a list of busy drawables, so we don't overlap videos if there are
61 * more than one video track in the stream. */
62 static vlc_mutex_t serializer = VLC_STATIC_MUTEX;
63 static uintptr_t *used = NULL;
66 * Find the drawable set by libvlc application.
68 static int Open (vout_window_t *wnd, const vout_window_cfg_t *cfg)
71 uintptr_t val = var_InheritInteger (wnd, "drawable-hwnd");
78 vlc_mutex_lock (&serializer);
80 for (/*n = 0*/; used[n]; n++)
83 msg_Warn (wnd, "HWND 0x%zX is busy", val);
88 tab = realloc (used, sizeof (*used) * (n + 2));
89 if (likely(tab != NULL))
98 vlc_mutex_unlock (&serializer);
103 wnd->handle.hwnd = (void *)val;
104 wnd->control = Control;
105 wnd->sys = (void *)val;
110 * Release the drawable.
112 static void Close (vout_window_t *wnd)
114 uintptr_t val = (uintptr_t)wnd->sys;
117 /* Remove this drawable from the list of busy ones */
118 vlc_mutex_lock (&serializer);
119 assert (used != NULL);
120 while (used[n] != val)
126 used[n] = used[n + 1];
127 while (used[++n] != 0);
134 vlc_mutex_unlock (&serializer);
138 static int Control (vout_window_t *wnd, int query, va_list ap)
144 case VOUT_WINDOW_SET_SIZE: /* not allowed */
145 case VOUT_WINDOW_SET_STATE: /* not allowed either, would be ugly */
148 msg_Warn (wnd, "unsupported control query %d", query);