/**
* gst_gl_window_get_context:
* @window: a #GstGLWindow
*
* Returns: (transfer full): the #GstGLContext associated with this @window
*
* Since: 1.4
*/
GstGLContext *
gst_gl_window_get_context (GstGLWindow * window)
{
g_return_val_if_fail (GST_IS_GL_WINDOW (window), NULL);
return (GstGLContext *) g_weak_ref_get (&window->context_ref);
}
static gpointer
gst_gl_window_navigation_thread (GstGLWindow * window)
{
GSource *source;
g_return_val_if_fail (GST_IS_GL_WINDOW (window), NULL);
window->priv->navigation_context = g_main_context_new ();
window->priv->navigation_loop =
g_main_loop_new (window->priv->navigation_context, FALSE);
g_main_context_push_thread_default (window->priv->navigation_context);
source = g_idle_source_new ();
g_source_set_callback (source, (GSourceFunc) gst_gl_window_navigation_started,
window, NULL);
g_source_attach (source, window->priv->navigation_context);
g_source_unref (source);
g_main_loop_run (window->priv->navigation_loop);
g_main_context_pop_thread_default (window->priv->navigation_context);
g_main_loop_unref (window->priv->navigation_loop);
g_main_context_unref (window->priv->navigation_context);
window->priv->navigation_loop = NULL;
window->priv->navigation_context = NULL;
GST_INFO ("navigation loop exited\n");
return NULL;
}
/**
* gst_gl_window_show:
* @window: a #GstGLWindow
*
* Present the window to the screen.
*
* Since: 1.6
*/
void
gst_gl_window_show (GstGLWindow * window)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
if (window_class->show)
window_class->show (window);
}
/**
* gst_gl_window_set_preferred_size:
* @window: a #GstGLWindow
* @width: new preferred width
* @height: new preferred height
*
* Set the preferred width and height of the window. Implementations are free
* to ignore this information.
*
* Since: 1.6
*/
void
gst_gl_window_set_preferred_size (GstGLWindow * window, gint width, gint height)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
if (window_class->set_preferred_size)
window_class->set_preferred_size (window, width, height);
}
/**
* gst_gl_window_handle_events:
* @window: a #GstGLWindow
* @handle_events: a #gboolean indicating if events should be handled or not.
*
* Tell a @window that it should handle events from the window system. These
* events are forwarded upstream as navigation events. In some window systems
* events are not propagated in the window hierarchy if a client is listening
* for them. This method allows you to disable events handling completely
* from the @window.
*/
void
gst_gl_window_handle_events (GstGLWindow * window, gboolean handle_events)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
if (window_class->handle_events)
window_class->handle_events (window, handle_events);
}
/**
* gst_gl_window_get_window_handle:
* @window: a #GstGLWindow
*
* Returns: the window handle we are currently rendering into
*
* Since: 1.4
*/
guintptr
gst_gl_window_get_window_handle (GstGLWindow * window)
{
GstGLWindowClass *window_class;
g_return_val_if_fail (GST_IS_GL_WINDOW (window), 0);
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_val_if_fail (window_class->get_window_handle != NULL, 0);
return window_class->get_window_handle (window);
}
void
gst_gl_window_resize (GstGLWindow * window, guint width, guint height)
{
g_return_if_fail (GST_IS_GL_WINDOW (window));
if (window->resize)
window->resize (window->resize_data, width, height);
window->priv->surface_width = width;
window->priv->surface_height = height;
}
/**
* gst_gl_window_run:
* @window: a #GstGLWindow
*
* Start the execution of the runloop.
*
* Since: 1.4
*/
void
gst_gl_window_run (GstGLWindow * window)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_if_fail (window_class->run != NULL);
window->priv->alive = TRUE;
window_class->run (window);
}
void
gst_gl_window_queue_resize (GstGLWindow * window)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
window->queue_resize = TRUE;
if (window_class->queue_resize)
window_class->queue_resize (window);
}
/**
* gst_gl_window_send_message_async:
* @window: a #GstGLWindow
* @callback: (scope async): function to invoke
* @data: (closure): data to invoke @callback with
* @destroy: called when @data is not needed anymore
*
* Invoke @callback with @data on the window thread. The callback may not
* have been executed when this function returns.
*
* Since: 1.4
*/
void
gst_gl_window_send_message_async (GstGLWindow * window, GstGLWindowCB callback,
gpointer data, GDestroyNotify destroy)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
g_return_if_fail (callback != NULL);
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_if_fail (window_class->send_message_async != NULL);
window_class->send_message_async (window, callback, data, destroy);
}
/**
* gst_gl_window_send_message:
* @window: a #GstGLWindow
* @callback: (scope async): function to invoke
* @data: (closure): data to invoke @callback with
*
* Invoke @callback with data on the window thread. @callback is guarenteed to
* have executed when this function returns.
*
* Since: 1.4
*/
void
gst_gl_window_send_message (GstGLWindow * window, GstGLWindowCB callback,
gpointer data)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
g_return_if_fail (callback != NULL);
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_if_fail (window_class->send_message != NULL);
window_class->send_message (window, callback, data);
}
/**
* gst_gl_window_draw:
* @window: a #GstGLWindow
*
* Redraw the window contents. Implementations should invoke the draw callback.
*
* Since: 1.4
*/
void
gst_gl_window_draw (GstGLWindow * window)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_if_fail (window_class->draw != NULL);
/* avoid to overload the drawer */
if (window->is_drawing) {
return;
}
window_class->draw (window);
}
/**
* gst_gl_window_set_close_callback:
* @window: a #GstGLWindow
* @callback: (scope notified): function to invoke
* @data: (closure): data to invoke @callback with
* @destroy_notify: called when @data is not needed any more
*
* Sets the callback called when the window is about to close.
*
* Since: 1.4
*/
void
gst_gl_window_set_close_callback (GstGLWindow * window, GstGLWindowCB callback,
gpointer data, GDestroyNotify destroy_notify)
{
g_return_if_fail (GST_IS_GL_WINDOW (window));
GST_GL_WINDOW_LOCK (window);
if (window->close_notify)
window->close_notify (window->close_data);
window->close = callback;
window->close_data = data;
window->close_notify = destroy_notify;
GST_GL_WINDOW_UNLOCK (window);
}
/**
* gst_gl_window_set_render_rectangle:
* @window: a #GstGLWindow
* @x: x position
* @y: y position
* @width: width
* @height: height
*
* Tell a @window that it should render into a specific region of the window
* according to the #GstVideoOverlay interface.
*
* Returns: whether the specified region could be set
*/
gboolean
gst_gl_window_set_render_rectangle (GstGLWindow * window, gint x, gint y,
gint width, gint height)
{
GstGLWindowClass *window_class;
gboolean ret = FALSE;
g_return_val_if_fail (GST_IS_GL_WINDOW (window), FALSE);
window_class = GST_GL_WINDOW_GET_CLASS (window);
if (x < 0 || y < 0 || width <= 0 || height <= 0)
return FALSE;
if (window_class->set_render_rectangle)
ret = window_class->set_render_rectangle (window, x, y, width, height);
return ret;
}
/**
* gst_gl_window_quit:
* @window: a #GstGLWindow
*
* Quit the runloop's execution.
*
* Since: 1.4
*/
void
gst_gl_window_quit (GstGLWindow * window)
{
GstGLWindowClass *window_class;
g_return_if_fail (GST_IS_GL_WINDOW (window));
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_if_fail (window_class->quit != NULL);
GST_GL_WINDOW_LOCK (window);
window->priv->alive = FALSE;
window_class->quit (window);
GST_INFO ("quit sent to gl window loop");
GST_GL_WINDOW_UNLOCK (window);
}
void
gst_gl_window_resize (GstGLWindow * window, guint width, guint height)
{
g_return_if_fail (GST_IS_GL_WINDOW (window));
if (window->resize) {
struct resize_data resize = { 0, };
resize.window = window;
resize.width = width;
resize.height = height;
gst_gl_window_send_message (window, (GstGLWindowCB) _on_resize, &resize);
}
window->priv->surface_width = width;
window->priv->surface_height = height;
window->queue_resize = FALSE;
}
/**
* gst_gl_window_set_window_handle:
* @window: a #GstGLWindow
* @handle: handle to the window
*
* Sets the window that this @window should render into. Some implementations
* require this to be called with a valid handle before drawing can commence.
*
* Since: 1.4
*/
void
gst_gl_window_set_window_handle (GstGLWindow * window, guintptr handle)
{
GstGLWindowClass *window_class;
GstSetWindowHandleCb *data;
g_return_if_fail (GST_IS_GL_WINDOW (window));
g_return_if_fail (handle != 0);
window_class = GST_GL_WINDOW_GET_CLASS (window);
g_return_if_fail (window_class->set_window_handle != NULL);
data = g_slice_new (GstSetWindowHandleCb);
data->window = gst_object_ref (window);
data->handle = handle;
/* FIXME: Move to a message which deactivates, calls implementation, activates */
gst_gl_window_send_message_async (window,
(GstGLWindowCB) _set_window_handle_cb, data,
(GDestroyNotify) _free_swh_cb);
/* window_class->set_window_handle (window, handle); */
}
