Workaround for servers using rootless layer with damage (Bug #1168, TorreyXORG-6_7_99_904

    T. Lyons).

1 files changed, 8 insertions, 0 deletions

diff --git a/miext/damage/damage.c b/miext/damage/damage.c
index b4b893855..f87adb7a5 100755
--- a/miext/damage/damage.c
+++ b/miext/damage/damage.c
@@ -78,6 +78,14 @@ getDrawableDamageRef (DrawablePtr pDrawable)
     {
 	ScreenPtr   pScreen = pDrawable->pScreen;
 
+#ifdef ROOTLESS_WORKAROUND
+	if (!((WindowPtr)pDrawable)->viewable)
+	{
+	    static DamagePtr nullDamage = 0;
+	    return &nullDamage;
+	}
+#endif
+
 	pPixmap = 0;
 	if (pScreen->GetWindowPixmap)
 	    pPixmap = (*pScreen->GetWindowPixmap) ((WindowPtr)pDrawable);