void
gst_gl_window_activate_gl_context (GstGLWindow * window, gboolean activate)
{
GstGLWindowPrivate *priv = window->priv;
if (activate)
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (callback_activate_gl_context), priv);
else
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (callback_inactivate_gl_context), priv);
}
static gboolean
gst_glimage_sink_redisplay (GstGLImageSink * gl_sink)
{
GstGLWindow *window;
gboolean alive;
window = gst_gl_context_get_window (gl_sink->context);
if (window && gst_gl_window_is_running (window)) {
#if GST_GL_HAVE_GLES2
if (USING_GLES2 (gl_sink->context)) {
if (!gl_sink->redisplay_shader) {
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (gst_glimage_sink_thread_init_redisplay), gl_sink);
}
}
#endif
/* Drawing is asynchrone: gst_gl_window_draw is not blocking
* It means that it does not wait for stuff being executed in other threads
*/
gst_gl_window_draw (window, GST_VIDEO_SINK_WIDTH (gl_sink),
GST_VIDEO_SINK_HEIGHT (gl_sink));
}
alive = gst_gl_window_is_running (window);
gst_object_unref (window);
return alive;
}
/**
* gst_gl_context_thread_add:
* @context: a #GstGLContext
* @func: a #GstGLContextThreadFunc
* @data: (closure): user data to call @func with
*
* Execute @func in the OpenGL thread of @context with @data
*
* MT-safe
*
* Since: 1.4
*/
void
gst_gl_context_thread_add (GstGLContext * context,
GstGLContextThreadFunc func, gpointer data)
{
GstGLWindow *window;
RunGenericData rdata;
g_return_if_fail (GST_IS_GL_CONTEXT (context));
g_return_if_fail (func != NULL);
if (GST_IS_GL_WRAPPED_CONTEXT (context)) {
g_return_if_fail (context->priv->active_thread == g_thread_self ());
func (context, data);
return;
}
rdata.context = context;
rdata.data = data;
rdata.func = func;
window = gst_gl_context_get_window (context);
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (_gst_gl_context_thread_run_generic), &rdata);
gst_object_unref (window);
}
static gboolean
gst_glimage_sink_redisplay (GstGLImageSink * gl_sink)
{
GstGLWindow *window;
gboolean alive;
window = gst_gl_context_get_window (gl_sink->context);
if (!window)
return FALSE;
if (gst_gl_window_is_running (window)) {
#if GST_GL_HAVE_GLES2
if (USING_GLES2 (gl_sink->context)) {
if (G_UNLIKELY (!gl_sink->redisplay_shader)) {
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (gst_glimage_sink_thread_init_redisplay), gl_sink);
/* if the shader is still null it means it failed to be useable */
if (G_UNLIKELY (!gl_sink->redisplay_shader)) {
gst_object_unref (window);
return FALSE;
}
}
}
#endif
/* Drawing is asynchronous: gst_gl_window_draw is not blocking
* It means that it does not wait for stuff to be executed in other threads
*/
gst_gl_window_draw (window, GST_VIDEO_SINK_WIDTH (gl_sink),
GST_VIDEO_SINK_HEIGHT (gl_sink));
}
alive = gst_gl_window_is_running (window);
gst_object_unref (window);
return alive;
}
static GstStateChangeReturn
gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
{
GstGLImageSink *glimage_sink;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG ("change state");
glimage_sink = GST_GLIMAGE_SINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
g_atomic_int_set (&glimage_sink->to_quit, 0);
if (!glimage_sink->display) {
GstGLWindow *window;
GError *error = NULL;
if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display))
return GST_STATE_CHANGE_FAILURE;
glimage_sink->context = gst_gl_context_new (glimage_sink->display);
window = gst_gl_context_get_window (glimage_sink->context);
if (!glimage_sink->window_id && !glimage_sink->new_window_id)
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY
(glimage_sink));
if (glimage_sink->window_id != glimage_sink->new_window_id) {
glimage_sink->window_id = glimage_sink->new_window_id;
gst_gl_window_set_window_handle (window, glimage_sink->window_id);
}
if (!gst_gl_context_create (glimage_sink->context,
glimage_sink->other_context, &error)) {
GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s",
error->message), (NULL));
if (glimage_sink->display) {
gst_object_unref (glimage_sink->display);
glimage_sink->display = NULL;
}
gst_object_unref (glimage_sink->context);
gst_object_unref (window);
return GST_STATE_CHANGE_FAILURE;
}
/* setup callbacks */
gst_gl_window_set_resize_callback (window,
GST_GL_WINDOW_RESIZE_CB (gst_glimage_sink_on_resize),
gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref);
gst_gl_window_set_draw_callback (window,
GST_GL_WINDOW_CB (gst_glimage_sink_on_draw),
gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref);
gst_gl_window_set_close_callback (window,
GST_GL_WINDOW_CB (gst_glimage_sink_on_close),
gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref);
gst_object_unref (window);
}
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
/* mark the redisplay_texture as unavailable (=0)
* to avoid drawing
*/
GST_GLIMAGE_SINK_LOCK (glimage_sink);
glimage_sink->redisplay_texture = 0;
GST_GLIMAGE_SINK_UNLOCK (glimage_sink);
if (glimage_sink->upload) {
gst_object_unref (glimage_sink->upload);
glimage_sink->upload = NULL;
}
glimage_sink->window_id = 0;
//but do not reset glimage_sink->new_window_id
if (glimage_sink->pool) {
gst_buffer_pool_set_active (glimage_sink->pool, FALSE);
gst_object_unref (glimage_sink->pool);
glimage_sink->pool = NULL;
}
GST_VIDEO_SINK_WIDTH (glimage_sink) = 1;
GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1;
if (glimage_sink->context) {
GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink);
gst_gl_window_set_resize_callback (window, NULL, NULL, NULL);
gst_gl_window_set_draw_callback (window, NULL, NULL, NULL);
gst_gl_window_set_close_callback (window, NULL, NULL, NULL);
gst_object_unref (window);
gst_object_unref (glimage_sink->context);
glimage_sink->context = NULL;
gst_object_unref (glimage_sink->display);
glimage_sink->display = NULL;
}
break;
}
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
{
GstGLImageSink *glimage_sink;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG ("changing state: %s => %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
glimage_sink = GST_GLIMAGE_SINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
g_atomic_int_set (&glimage_sink->to_quit, 0);
if (!glimage_sink->display) {
if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display))
return GST_STATE_CHANGE_FAILURE;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
/* mark the redisplay_texture as unavailable (=0)
* to avoid drawing
*/
GST_GLIMAGE_SINK_LOCK (glimage_sink);
glimage_sink->redisplay_texture = 0;
if (glimage_sink->stored_buffer) {
gst_buffer_unref (glimage_sink->stored_buffer);
glimage_sink->stored_buffer = NULL;
}
GST_GLIMAGE_SINK_UNLOCK (glimage_sink);
if (glimage_sink->upload) {
gst_object_unref (glimage_sink->upload);
glimage_sink->upload = NULL;
}
glimage_sink->window_id = 0;
//but do not reset glimage_sink->new_window_id
if (glimage_sink->pool) {
gst_buffer_pool_set_active (glimage_sink->pool, FALSE);
gst_object_unref (glimage_sink->pool);
glimage_sink->pool = NULL;
}
GST_VIDEO_SINK_WIDTH (glimage_sink) = 1;
GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1;
if (glimage_sink->context) {
GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink);
gst_gl_window_set_resize_callback (window, NULL, NULL, NULL);
gst_gl_window_set_draw_callback (window, NULL, NULL, NULL);
gst_gl_window_set_close_callback (window, NULL, NULL, NULL);
gst_object_unref (window);
gst_object_unref (glimage_sink->context);
glimage_sink->context = NULL;
}
if (glimage_sink->display) {
gst_object_unref (glimage_sink->display);
glimage_sink->display = NULL;
}
break;
}
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
_ensure_gl_setup (GstGLImageSink * gl_sink)
{
GError *error = NULL;
if (!gst_gl_ensure_display (gl_sink, &gl_sink->display))
return FALSE;
if (!gl_sink->context) {
GstGLWindow *window;
gl_sink->context = gst_gl_context_new (gl_sink->display);
if (!gl_sink->context)
goto context_creation_error;
window = gst_gl_context_get_window (gl_sink->context);
if (!gl_sink->window_id && !gl_sink->new_window_id)
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (gl_sink));
if (gl_sink->window_id != gl_sink->new_window_id) {
gl_sink->window_id = gl_sink->new_window_id;
gst_gl_window_set_window_handle (window, gl_sink->window_id);
}
if (!gst_gl_context_create (gl_sink->context, gl_sink->other_context,
&error)) {
gst_object_unref (window);
goto context_error;
}
/* setup callbacks */
gst_gl_window_set_resize_callback (window,
GST_GL_WINDOW_RESIZE_CB (gst_glimage_sink_on_resize),
gst_object_ref (gl_sink), (GDestroyNotify) gst_object_unref);
gst_gl_window_set_draw_callback (window,
GST_GL_WINDOW_CB (gst_glimage_sink_on_draw),
gst_object_ref (gl_sink), (GDestroyNotify) gst_object_unref);
gst_gl_window_set_close_callback (window,
GST_GL_WINDOW_CB (gst_glimage_sink_on_close),
gst_object_ref (gl_sink), (GDestroyNotify) gst_object_unref);
gl_sink->key_sig_id = g_signal_connect (window, "key-event", G_CALLBACK
(gst_glimage_sink_key_event_cb), gl_sink);
gl_sink->mouse_sig_id = g_signal_connect (window, "mouse-event", G_CALLBACK
(gst_glimage_sink_mouse_event_cb), gl_sink);
gst_object_unref (window);
}
return TRUE;
context_creation_error:
{
GST_ELEMENT_ERROR (gl_sink, RESOURCE, NOT_FOUND,
("Failed to create GL context"), (NULL));
return FALSE;
}
context_error:
{
GST_ELEMENT_ERROR (gl_sink, RESOURCE, NOT_FOUND, ("%s", error->message),
(NULL));
gst_object_unref (gl_sink->context);
gl_sink->context = NULL;
return FALSE;
}
}