From 00eedc704dc84e370faa448af3862fc103232a1e Mon Sep 17 00:00:00 2001
From: David Reveman <davidr@novell.com>
Date: Mon, 4 Aug 2008 13:42:17 -0400
Subject: [PATCH] Add offscreen optimization to dmxShmPutImage.

---
 hw/dmx/dmxscrinit.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/hw/dmx/dmxscrinit.c b/hw/dmx/dmxscrinit.c
index c97064786..175005e01 100644
--- a/hw/dmx/dmxscrinit.c
+++ b/hw/dmx/dmxscrinit.c
@@ -103,7 +103,22 @@ dmxShmPutImage (DrawablePtr  dst,
 		char	     *data)
 {
     PixmapPtr pmap;
-    GCPtr putGC;
+    GCPtr     putGC;
+    
+    if (dst->type == DRAWABLE_WINDOW)
+    {
+	dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV ((WindowPtr) (dst));
+
+	if (!pWinPriv->window || (dmxOffScreenOpt && pWinPriv->offscreen))
+	    return;
+    }
+    else
+    {
+	dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV ((PixmapPtr) (dst));
+	
+	if (!pPixPriv->pixmap)
+	    return;
+    }
 
     putGC = GetScratchGC(depth, dst->pScreen);
     if (!putGC)