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* @brief Legacy monolithic LibVLC video window provider
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/*****************************************************************************
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* Copyright © 2009 Rémi Denis-Courmont
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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****************************************************************************/
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_vout_window.h>
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#define HWND_TEXT N_("Window handle (HWND)")
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#define HWND_LONGTEXT N_( \
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"Video will be embedded in this pre-existing window. " \
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"If zero, a new window will be created.")
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static int Open (vout_window_t *, const vout_window_cfg_t *);
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static void Close(vout_window_t *);
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set_shortname (N_("Drawable"))
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set_description (N_("Embedded window video"))
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set_category (CAT_VIDEO)
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set_subcategory (SUBCAT_VIDEO_VOUT)
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set_capability ("vout window hwnd", 0)
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set_callbacks (Open, Close)
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add_shortcut ("embed-hwnd")
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add_integer ("drawable-hwnd", 0, HWND_TEXT, HWND_LONGTEXT, true)
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static int Control (vout_window_t *, int, va_list);
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/* Keep a list of busy drawables, so we don't overlap videos if there are
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* more than one video track in the stream. */
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static vlc_mutex_t serializer = VLC_STATIC_MUTEX;
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static uintptr_t *used = NULL;
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* Find the drawable set by libvlc application.
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static int Open (vout_window_t *wnd, const vout_window_cfg_t *cfg)
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uintptr_t val = var_InheritInteger (wnd, "drawable-hwnd");
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vlc_mutex_lock (&serializer);
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for (/*n = 0*/; used[n]; n++)
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msg_Warn (wnd, "HWND 0x%zX is busy", val);
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tab = realloc (used, sizeof (*used) * (n + 2));
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if (likely(tab != NULL))
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vlc_mutex_unlock (&serializer);
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wnd->handle.hwnd = (void *)val;
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wnd->control = Control;
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wnd->sys = (void *)val;
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* Release the drawable.
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static void Close (vout_window_t *wnd)
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uintptr_t val = (uintptr_t)wnd->sys;
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/* Remove this drawable from the list of busy ones */
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vlc_mutex_lock (&serializer);
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assert (used != NULL);
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while (used[n] != val)
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used[n] = used[n + 1];
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while (used[++n] != 0);
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vlc_mutex_unlock (&serializer);
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static int Control (vout_window_t *wnd, int query, va_list ap)
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case VOUT_WINDOW_SET_SIZE: /* not allowed */
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case VOUT_WINDOW_SET_STATE: /* not allowed either, would be ugly */
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msg_Warn (wnd, "unsupported control query %d", query);