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Initialize global->root_pixmap to the stage color

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Fixes drawing of the overview in the case where there is no root pixmap
(eg, --xephyr mode).

(And the workaround for not drawing an unintialized ClutterTexture can
be removed now, since the texture will always have been initialized.)

https://bugzilla.gnome.org/show_bug.cgi?id=609339
This commit is contained in:
Dan Winship 2010-02-08 10:54:56 -05:00
parent caaa543385
commit 8e759d7f32
1 changed files with 14 additions and 20 deletions
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34
src/shell-global.c
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@ -937,22 +937,6 @@ root_window_filter (GdkXEvent *native, GdkEvent *event, gpointer data)
return GDK_FILTER_CONTINUE;
}
/* Workaround for a clutter bug where if ClutterGLXTexturePixmap
* is painted without the pixmap being set, a crash will occur inside
* Cogl.
*
* http://bugzilla.openedhand.com/show_bug.cgi?id=1644
*/
static void
root_pixmap_paint (ClutterActor *actor, gpointer data)
{
Pixmap pixmap;
g_object_get (G_OBJECT (actor), "pixmap", &pixmap, NULL);
if (!pixmap)
g_signal_stop_emission_by_name (actor, "paint");
}
/*
* Called when the root window pixmap actor is destroyed.
*/
@ -1028,6 +1012,7 @@ shell_global_create_root_pixmap_actor (ShellGlobal *global)
{
GdkWindow *window;
ClutterActor *stage;
ClutterColor stage_color;
/* The actor created is actually a ClutterClone of global->root_pixmap. */
@ -1042,16 +1027,25 @@ shell_global_create_root_pixmap_actor (ShellGlobal *global)
clutter_texture_set_filter_quality (CLUTTER_TEXTURE (global->root_pixmap),
CLUTTER_TEXTURE_QUALITY_HIGH);
/* Initialize to the stage color, since that's what will be seen
* in the main view if there's no actual background window.
*/
stage = mutter_plugin_get_stage (global->plugin);
clutter_stage_get_color (CLUTTER_STAGE (stage), &stage_color);
clutter_texture_set_from_rgb_data (CLUTTER_TEXTURE (global->root_pixmap),
/* ClutterColor has the same layout
* as one pixel of RGB(A) data.
*/
(const guchar *)&stage_color, FALSE,
/* w, h, rowstride, bpp, flags */
1, 1, 3, 3, 0, NULL);
/* We can only clone an actor within a stage, so we hide the source
* texture then add it to the stage */
clutter_actor_hide (global->root_pixmap);
stage = mutter_plugin_get_stage (global->plugin);
clutter_container_add_actor (CLUTTER_CONTAINER (stage),
global->root_pixmap);
g_signal_connect (global->root_pixmap, "paint",
G_CALLBACK (root_pixmap_paint), NULL);
/* This really should never happen; but just in case... */
g_signal_connect (global->root_pixmap, "destroy",
G_CALLBACK (root_pixmap_destroy), global);