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Always create the Damage object for ClutterX11TexturePixmap auto updates

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If clutter_x11_texture_set_window() was called after
clutter_x11_texture_pixmap_set_automatic(), then the Damage object would
not be properly created so updates to the window were ignored.

Refactor creation of the damage object to a separate function, and
call it from clutter_x11_texture_set_window() and clutter_x11_texture_set_pixmap()
as appropriate. Addition and removal of the filter function is made
conditional on priv->damage to make free_damage_resources() cleanly
idempotent.

See: http://bugzilla.gnome.org/show_bug.cgi?id=587189 for the original
bug report.

http://bugzilla.openedhand.com/show_bug.cgi?id=1710

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
This commit is contained in:
Owen W. Taylor 2009-07-22 15:38:44 -04:00 committed by Emmanuele Bassi
parent 2c2f31b1be
commit 894fe4ba93
1 changed files with 54 additions and 20 deletions
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74
clutter/x11/clutter-x11-texture-pixmap.c
View File

@ -344,6 +344,39 @@ on_x_event_filter_too (XEvent *xev, ClutterEvent *cev, gpointer data)
return CLUTTER_X11_FILTER_CONTINUE;
}
static void
create_damage_resources (ClutterX11TexturePixmap *texture)
{
ClutterX11TexturePixmapPrivate *priv;
Display *dpy;
priv = texture->priv;
dpy = clutter_x11_get_default_display();
if (!priv->window && !priv->pixmap)
return;
clutter_x11_trap_x_errors ();
if (priv->window)
priv->damage_drawable = priv->window;
else
priv->damage_drawable = priv->pixmap;
priv->damage = XDamageCreate (dpy,
priv->damage_drawable,
XDamageReportNonEmpty);
/* Errors here might occur if the window is already destroyed, we
* simply skip processing damage and assume that the texture pixmap
* will be cleaned up by the app when it gets a DestroyNotify.
*/
XSync (dpy, FALSE);
clutter_x11_untrap_x_errors ();
if (priv->damage)
clutter_x11_add_filter (on_x_event_filter, (gpointer)texture);
}
static void
free_damage_resources (ClutterX11TexturePixmap *texture)
@ -362,9 +395,9 @@ free_damage_resources (ClutterX11TexturePixmap *texture)
clutter_x11_untrap_x_errors ();
priv->damage = None;
priv->damage_drawable = None;
}
clutter_x11_remove_filter (on_x_event_filter, (gpointer)texture);
clutter_x11_remove_filter (on_x_event_filter, (gpointer)texture);
}
}
@ -1017,6 +1050,17 @@ clutter_x11_texture_pixmap_set_pixmap (ClutterX11TexturePixmap *texture,
priv->pixmap = pixmap;
new_pixmap = TRUE;
/* The damage object is created on the window if there is any
* but if there is no window, then we create it directly on
* the pixmap, so it needs to be recreated with a change in
* pixmap.
*/
if (priv->automatic_updates && new_pixmap && !priv->window)
{
free_damage_resources (texture);
create_damage_resources (texture);
}
}
if (priv->pixmap_width != width)
@ -1154,6 +1198,12 @@ clutter_x11_texture_pixmap_set_window (ClutterX11TexturePixmap *texture,
clutter_x11_add_filter (on_x_event_filter_too, (gpointer)texture);
}
if (priv->automatic_updates)
{
free_damage_resources (texture);
create_damage_resources (texture);
}
g_object_ref (texture);
g_object_notify (G_OBJECT (texture), "window");
@ -1325,24 +1375,8 @@ clutter_x11_texture_pixmap_set_automatic (ClutterX11TexturePixmap *texture,
dpy = clutter_x11_get_default_display();
if (setting == TRUE)
{
clutter_x11_add_filter (on_x_event_filter, (gpointer)texture);
clutter_x11_trap_x_errors ();
if (priv->window)
priv->damage_drawable = priv->window;
else
priv->damage_drawable = priv->pixmap;
priv->damage = XDamageCreate (dpy,
priv->damage_drawable,
XDamageReportNonEmpty);
XSync (dpy, FALSE);
clutter_x11_untrap_x_errors ();
}
if (setting)
create_damage_resources (texture);
else
free_damage_resources (texture);