Compute GDI region for damaged extent in a non-retarded way

Compute GDI region for damaged extent in a non-retarded way in winShadowUpdateDDNL
(need to fix other engines likewise)

1 files changed, 2 insertions, 11 deletions

diff --git a/hw/xwin/winshadddnl.c b/hw/xwin/winshadddnl.c
index 63d48adb6..2df8df979 100644
--- a/hw/xwin/winshadddnl.c
+++ b/hw/xwin/winshadddnl.c
@@ -720,17 +720,8 @@ winShadowUpdateDDNL (ScreenPtr pScreen,
     {
       BoxPtr		pBoxExtents = RegionExtents(damage);
 
-      /* Compute a GDI region from the damaged region */
-      hrgnCombined = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);
-      dwBox--;
-      pBox++;
-      while (dwBox--)
-	{
-	  hrgnTemp = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);
-	  CombineRgn (hrgnCombined, hrgnCombined, hrgnTemp, RGN_OR);
-	  DeleteObject (hrgnTemp);
-	  pBox++;
-	}
+      /* Compute a GDI region from the damaged region extent */
+      hrgnCombined = CreateRectRgn (pBoxExtents->x1, pBoxExtents->y1, pBoxExtents->x2, pBoxExtents->y2);
 
       /* Install the GDI region as a clipping region */
       SelectClipRgn (pScreenPriv->hdcScreen, hrgnCombined);