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gdk: Clear GL context when window is withdrawn

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Some clients (e.g. gnome-online-accounts) quickly unmap and map
a window. With some backends the backend surface will be replaced
causing the application to crash because the GL context is still
using the old surface. Clearing the GL context when a window is
withdrawn fixes this.

https://bugzilla.gnome.org/show_bug.cgi?id=789141
This commit is contained in:
Andrea Azzarone 2017-10-25 09:34:47 -04:00 committed by Ken VanDine
parent 9c1a0b80ae
commit 1c3aff5101
1 changed files with 5 additions and 0 deletions
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5
gdk/gdkwindow.c
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@ -5744,6 +5744,7 @@ gdk_window_withdraw (GdkWindow *window)
{
GdkWindowImplClass *impl_class;
gboolean was_mapped;
GdkGLContext *current_context;
g_return_if_fail (GDK_IS_WINDOW (window));
@ -5768,6 +5769,10 @@ gdk_window_withdraw (GdkWindow *window)
_gdk_synthesize_crossing_events_for_geometry_change (window->parent);
}
current_context = gdk_gl_context_get_current ();
if (current_context != NULL && gdk_gl_context_get_window (current_context) == window)
gdk_gl_context_clear_current ();
recompute_visible_regions (window, FALSE);
gdk_window_clear_old_updated_area (window);
}