#include <QApplication>
#include <QDate>
+#include <QMutex>
#include "qt4.hpp"
#ifdef Q_WS_X11
static char *x11_display = NULL;
#endif
-static struct
-{
- vlc_mutex_t lock;
- bool busy;
-} one = { VLC_STATIC_MUTEX, false };
+static QMutex lock;
+static bool busy = false;
+static bool active = false;
/*****************************************************************************
* Module callbacks
char *display = NULL;
#endif
- bool busy;
- vlc_mutex_lock (&one.lock);
- busy = one.busy;
- one.busy = true;
- vlc_mutex_unlock (&one.lock);
+ QMutexLocker locker (&lock);
if (busy)
{
msg_Err (p_this, "cannot start Qt4 multiple times");
{
delete p_sys;
free (display);
- vlc_mutex_lock (&one.lock);
- one.busy = false;
- vlc_mutex_unlock (&one.lock);
return VLC_ENOMEM;
}
#endif
* an embedded video window. */
vlc_sem_wait (&ready);
vlc_sem_destroy (&ready);
+ busy = active = true;
#ifndef Q_WS_MAC
if( !isDialogProvider )
#endif
delete p_sys;
- vlc_mutex_locker locker (&one.lock);
- one.busy = false;
+ QMutexLocker locker (&lock);
+ assert (busy);
+ busy = false;
}
static void *Thread( void *obj )
/* Create the normal interface in non-DP mode */
if( !p_intf->p_sys->b_isDialogProvider )
+ {
p_mi = new MainInterface( p_intf );
+ p_intf->p_sys->p_mi = p_mi;
+ }
else
p_mi = NULL;
- p_intf->p_sys->p_mi = p_mi;
/* Explain how to show a dialog :D */
p_intf->pf_show_dialog = ShowDialog;
- /* */
+ /* Tell the main LibVLC thread we are ready */
vlc_sem_post (&ready);
#ifdef Q_WS_MAC
msg_Dbg( p_intf, "QApp exec() finished" );
if (p_mi != NULL)
{
-#warning BUG!
- /* FIXME: the video window may still be registerd at this point */
- /* See LP#448082 as an example. */
+ QMutexLocker locker (&lock);
+ active = false;
p_intf->p_sys->p_mi = NULL;
/* Destroy first the main interface because it is connected to some
return VLC_EGENERIC;
}
+ QMutexLocker locker (&lock);
+ if (unlikely(!active))
+ return VLC_EGENERIC;
+
MainInterface *p_mi = p_intf->p_sys->p_mi;
msg_Dbg( p_obj, "requesting video..." );
static int WindowControl( vout_window_t *p_wnd, int i_query, va_list args )
{
MainInterface *p_mi = (MainInterface *)p_wnd->sys;
+ QMutexLocker locker (&lock);
+
+ if (unlikely(!active))
+ {
+ msg_Warn (p_wnd, "video already released before control");
+ return VLC_EGENERIC;
+ }
return p_mi->controlVideo( i_query, args );
}
{
vout_window_t *p_wnd = (vout_window_t*)p_obj;
MainInterface *p_mi = (MainInterface *)p_wnd->sys;
-
- msg_Dbg( p_obj, "releasing video..." );
+ QMutexLocker locker (&lock);
+
+ /* Normally, the interface terminates after the video. In the contrary, the
+ * Qt4 main loop is gone, so we cannot send any event to the user interface
+ * widgets. Ideally, we would keep the Qt4 main loop running until after
+ * the video window is released. But it is far simpler to just have the Qt4
+ * thread destroy the window early, and to turn this function into a stub.
+ *
+ * That assumes the video output will behave sanely if it window is
+ * destroyed asynchronously.
+ * XCB and Xlib-XCB are fine with that. Plain Xlib wouldn't, */
+ if (unlikely(!active))
+ {
+ msg_Warn (p_obj, "video already released");
+ return;
+ }
+ msg_Dbg (p_obj, "releasing video...");
p_mi->releaseVideo();
}
-