static void
set_pixmap (MetaSurfaceActorX11 *self,
Pixmap pixmap)
{
MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
CoglTexture *texture;
g_assert (priv->pixmap == None);
priv->pixmap = pixmap;
texture = COGL_TEXTURE (cogl_texture_pixmap_x11_new (ctx, priv->pixmap, FALSE, NULL));
if (G_UNLIKELY (!cogl_texture_pixmap_x11_is_using_tfp_extension (COGL_TEXTURE_PIXMAP_X11 (texture))))
g_warning ("NOTE: Not using GLX TFP!\n");
priv->texture = texture;
meta_shaped_texture_set_texture (stex, texture);
}
/**
* meta_background_actor_update:
* @screen: a #MetaScreen
*
* Refetches the _XROOTPMAP_ID property for the root window and updates
* the contents of the background actor based on that. There's no attempt
* to optimize out pixmap values that don't change (since a root pixmap
* could be replaced by with another pixmap with the same ID under some
* circumstances), so this should only be called when we actually receive
* a PropertyNotify event for the property.
*/
void
meta_background_actor_update (MetaScreen *screen)
{
MetaScreenBackground *background;
MetaDisplay *display;
MetaCompositor *compositor;
Atom type;
int format;
gulong nitems;
gulong bytes_after;
guchar *data;
Pixmap root_pixmap_id;
background = meta_screen_background_get (screen);
display = meta_screen_get_display (screen);
compositor = meta_display_get_compositor (display);
root_pixmap_id = None;
if (!XGetWindowProperty (meta_display_get_xdisplay (display),
meta_screen_get_xroot (screen),
compositor->atom_x_root_pixmap,
0, LONG_MAX,
False,
AnyPropertyType,
&type, &format, &nitems, &bytes_after, &data) &&
type != None)
{
/* Got a property. */
if (type == XA_PIXMAP && format == 32 && nitems == 1)
{
/* Was what we expected. */
root_pixmap_id = *(Pixmap *)data;
}
XFree(data);
}
if (root_pixmap_id != None)
{
CoglHandle texture;
CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
GError *error = NULL;
meta_error_trap_push (display);
texture = cogl_texture_pixmap_x11_new (ctx, root_pixmap_id, FALSE, &error);
meta_error_trap_pop (display);
if (texture != COGL_INVALID_HANDLE)
{
set_texture (background, texture);
cogl_handle_unref (texture);
background->have_pixmap = True;
return;
}
else
{
g_warning ("Failed to create background texture from pixmap: %s",
error->message);
g_error_free (error);
}
}
background->have_pixmap = False;
set_texture_to_stage_color (background);
}
