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[761/906] x11: Protect event display connection with a mutex

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We use it from different threads and need to serialize the
accesses to it.
This commit is contained in:
Sebastian Dröge 2013-07-16 13:28:19 +02:00 committed by Matthew Waters
parent ddfc527857
commit 380ab312ca
2 changed files with 26 additions and 0 deletions
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25
gst-libs/gst/gl/x11/gstglwindow_x11.c
View file

@ -120,6 +120,20 @@ gst_gl_window_x11_get_property (GObject * object, guint prop_id,
}
}
static void
gst_gl_window_x11_finalize (GObject * object)
{
GstGLWindowX11 *window_x11;
g_return_if_fail (GST_GL_IS_WINDOW_X11 (object));
window_x11 = GST_GL_WINDOW_X11 (object);
g_mutex_clear (&window_x11->disp_send_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_gl_window_x11_class_init (GstGLWindowX11Class * klass)
{
@ -130,6 +144,7 @@ gst_gl_window_x11_class_init (GstGLWindowX11Class * klass)
obj_class->set_property = gst_gl_window_x11_set_property;
obj_class->get_property = gst_gl_window_x11_get_property;
obj_class->finalize = gst_gl_window_x11_finalize;
g_object_class_install_property (obj_class, ARG_DISPLAY,
g_param_spec_string ("display", "Display", "X Display name", NULL,
@ -157,6 +172,8 @@ static void
gst_gl_window_x11_init (GstGLWindowX11 * window)
{
window->priv = GST_GL_WINDOW_X11_GET_PRIVATE (window);
g_mutex_init (&window->disp_send_lock);
}
/* Must be called in the gl thread */
@ -398,7 +415,9 @@ gst_gl_window_x11_close (GstGLWindow * window)
//XCloseDisplay (window_x11->device);
GST_DEBUG ("display receiver closed");
g_mutex_lock (&window_x11->disp_send_lock);
XCloseDisplay (window_x11->disp_send);
g_mutex_unlock (&window_x11->disp_send_lock);
GST_DEBUG ("display sender closed");
}
@ -468,6 +487,7 @@ gst_gl_window_x11_set_window_handle (GstGLWindow * window, guintptr id)
if (window_x11->running) {
GST_LOG ("set parent window id: %lud", id);
g_mutex_lock (&window_x11->disp_send_lock);
XGetWindowAttributes (window_x11->disp_send, window_x11->parent_win, &attr);
XResizeWindow (window_x11->disp_send, window_x11->internal_win_id,
@ -477,6 +497,7 @@ gst_gl_window_x11_set_window_handle (GstGLWindow * window, guintptr id)
window_x11->parent_win, 0, 0);
XSync (window_x11->disp_send, FALSE);
g_mutex_unlock (&window_x11->disp_send_lock);
}
}
@ -524,6 +545,8 @@ gst_gl_window_x11_draw (GstGLWindow * window, guint width, guint height)
XEvent event;
XWindowAttributes attr;
g_mutex_lock (&window_x11->disp_send_lock);
XGetWindowAttributes (window_x11->disp_send, window_x11->internal_win_id,
&attr);
@ -572,6 +595,8 @@ gst_gl_window_x11_draw (GstGLWindow * window, guint width, guint height)
XSendEvent (window_x11->disp_send, window_x11->internal_win_id, FALSE,
ExposureMask, &event);
XSync (window_x11->disp_send, FALSE);
g_mutex_unlock (&window_x11->disp_send_lock);
}
}

1
gst-libs/gst/gl/x11/gstglwindow_x11.h
View file

@ -65,6 +65,7 @@ struct _GstGLWindowX11 {
/* We use a specific connection to send events */
Display *disp_send;
GMutex disp_send_lock;
/* X window */
Window internal_win_id;