/**
* clutter_x11_texture_pixmap_set_window:
* @texture: the texture to bind
* @window: the X window to which the texture should be bound
* @automatic: TRUE is automatic window updates, FALSE for manual.
*
* Sets up a suitable pixmap for the window, using the composite and damage
* extensions if possible, and then calls
* clutter_x11_texture_pixmap_set_pixmap(). If you want a window in a texture,
* you probably want this function, or its older sister,
* clutter_glx_texture_pixmap_set_window().
*
* Since: 0.8
**/
void
clutter_x11_texture_pixmap_set_window (ClutterX11TexturePixmap *texture,
Window window)
{
ClutterX11TexturePixmapPrivate *priv;
XWindowAttributes attr;
Display *dpy = clutter_x11_get_default_display ();
g_return_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture));
priv = texture->priv;
if (!clutter_x11_has_composite_extension())
return;
if (priv->window == window)
return;
if (priv->window)
{
clutter_x11_remove_filter (on_x_event_filter_too, (gpointer)texture);
}
priv->window = window;
priv->window_mapped = FALSE;
priv->destroyed = FALSE;
if (window == None)
return;
clutter_x11_trap_x_errors ();
{
if (!XGetWindowAttributes (dpy, window, &attr))
{
XSync (dpy, False);
clutter_x11_untrap_x_errors ();
g_warning ("bad window 0x%x", (guint32)window);
priv->window = None;
return;
}
}
clutter_x11_untrap_x_errors ();
if (priv->window)
{
XSelectInput (dpy, priv->window,
attr.your_event_mask | StructureNotifyMask);
clutter_x11_add_filter (on_x_event_filter_too, (gpointer)texture);
}
g_object_ref (texture);
g_object_notify (G_OBJECT (texture), "window");
clutter_x11_texture_pixmap_set_mapped (texture,
attr.map_state == IsViewable);
clutter_x11_texture_pixmap_sync_window (texture);
g_object_unref (texture);
}
int
main (int argc, char *argv[])
{
GstPipeline *pipeline;
GstBus *bus;
GstElement *srcbin;
GstElement *tee;
GstElement *queue[N_ACTORS], *sink[N_ACTORS];
GstElement *upload[N_ACTORS];
/*
GstElement *effect[N_ACTORS];
*/
ClutterActor *stage;
GstGLClutterActor *actor[N_ACTORS];
Display *disp;
Window stage_win;
const gchar *desc;
gint i;
gint ok = FALSE;
ClutterInitError clutter_err = CLUTTER_INIT_ERROR_UNKNOWN;
clutter_err = clutter_init (&argc, &argv);
if (clutter_err != CLUTTER_INIT_SUCCESS)
g_warning ("Failed to initalize clutter: %d\n", clutter_err);
gst_init (&argc, &argv);
disp = clutter_x11_get_default_display ();
if (!clutter_x11_has_composite_extension ()) {
g_error ("XComposite extension missing");
}
stage = clutter_stage_get_default ();
clutter_actor_set_size (CLUTTER_ACTOR (stage),
W * COLS + (COLS - 1), H * ROWS + (ROWS - 1));
stage_win = clutter_x11_get_stage_window (CLUTTER_STAGE (stage));
XCompositeRedirectSubwindows (disp, stage_win, CompositeRedirectManual);
for (i = 0; i < N_ACTORS; i++) {
actor[i] = g_new0 (GstGLClutterActor, 1);
actor[i]->stage = stage;
actor[i]->win = XCreateSimpleWindow (disp, stage_win, 0, 0, W, H, 0, 0, 0);
XMapRaised (disp, actor[i]->win);
XSync (disp, FALSE);
}
/*
desc = g_strdup_printf ("v4l2src ! "
"video/x-raw, width=640, height=480, framerate=30/1 ! "
"videoscale !"
"video/x-raw, width=%d, height=%d ! "
"identity", W, H);
*/
desc = g_strdup_printf ("videotestsrc ! "
"video/x-raw, format=RGB, width=%d, height=%d !" "identity", W, H);
pipeline = GST_PIPELINE (gst_pipeline_new (NULL));
srcbin = gst_parse_bin_from_description (desc, TRUE, NULL);
if (!srcbin)
g_error ("Source bin creation failed");
tee = gst_element_factory_make ("tee", NULL);
gst_bin_add_many (GST_BIN (pipeline), srcbin, tee, NULL);
for (i = 0; i < N_ACTORS; i++) {
queue[i] = gst_element_factory_make ("queue", NULL);
upload[i] = gst_element_factory_make ("glupload", NULL);
/* effect[i] = gst_element_factory_make ("gleffects", NULL); */
sink[i] = gst_element_factory_make ("glimagesink", NULL);
/* gst_bin_add_many (GST_BIN (pipeline),
queue[i], upload[i], effect[i], sink[i], NULL); */
gst_bin_add_many (GST_BIN (pipeline), queue[i], upload[i], sink[i], NULL);
}
gst_element_link_many (srcbin, tee, NULL);
for (i = 0; i < N_ACTORS; i++) {
ok |=
// gst_element_link_many (tee, queue[i], upload[i], effect[i], sink[i],
gst_element_link_many (tee, queue[i], upload[i], sink[i], NULL);
}
if (!ok)
g_error ("Failed to link one or more elements");
/*
for (i = 0; i < N_ACTORS; i++) {
g_message ("setting effect %d on %s", i + 1,
gst_element_get_name (effect[i]));
g_object_set (G_OBJECT (effect[i]), "effect", i + 1, NULL);
}
*/
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, actor,
NULL);
gst_object_unref (bus);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
clutter_actor_show_all (stage);
clutter_main ();
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
gst_object_unref (pipeline);
return 0;
}
/**
* clutter_x11_texture_pixmap_sync_window:
* @texture: the texture to bind
*
* Resets the texture's pixmap from its window, perhaps in response to the
* pixmap's invalidation as the window changed size.
*
* Since: 0.8
**/
void
clutter_x11_texture_pixmap_sync_window (ClutterX11TexturePixmap *texture)
{
ClutterX11TexturePixmapPrivate *priv;
Pixmap pixmap;
g_return_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture));
priv = texture->priv;
if (priv->destroyed)
return;
if (!clutter_x11_has_composite_extension())
{
clutter_x11_texture_pixmap_set_pixmap (texture, priv->window);
return;
}
if (priv->window)
{
XWindowAttributes attr;
Display *dpy = clutter_x11_get_default_display ();
gboolean mapped, notify_x, notify_y, notify_override_redirect;
/* We may get a BadMatch error here if the window is not mapped.
* If so, ignore it - pixmap should be set to None in that case anyway */
XSync (dpy, FALSE);
clutter_x11_trap_x_errors ();
XGetWindowAttributes (dpy, priv->window, &attr);
mapped = attr.map_state == IsViewable;
if (mapped)
pixmap = XCompositeNameWindowPixmap (dpy, priv->window);
else
pixmap = None;
XSync (dpy, FALSE);
if (clutter_x11_untrap_x_errors() && pixmap!=None)
g_warning("%s: Got X error but pixmap is still set", __FUNCTION__);
notify_x = attr.x != priv->window_x;
notify_y = attr.y != priv->window_y;
notify_override_redirect = attr.override_redirect != priv->override_redirect;
priv->window_x = attr.x;
priv->window_y = attr.y;
priv->override_redirect = attr.override_redirect;
g_object_ref (texture); /* guard against unparent */
if (pixmap)
{
clutter_x11_texture_pixmap_set_pixmap (texture, pixmap);
priv->owns_pixmap = TRUE;
}
clutter_x11_texture_pixmap_set_mapped (texture, mapped);
/* could do more clever things with a signal, i guess.. */
if (notify_override_redirect)
g_object_notify (G_OBJECT (texture), "window-override-redirect");
if (notify_x)
g_object_notify (G_OBJECT (texture), "window-x");
if (notify_y)
g_object_notify (G_OBJECT (texture), "window-y");
g_object_unref (texture);
}
}
