x11drv: GdiAlphaBlend fix for X errors if width or height is 0.

ff830688 · Marcus Meissner · Alexandre Julliard · e1afe33a · ff830688
Commit ff830688 authored May 24, 2006 by Marcus Meissner Committed by Alexandre Julliard May 24, 2006
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xrender.c dlls/x11drv/xrender.c +1 -0

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--- a/dlls/x11drv/xrender.c
+++ b/dlls/x11drv/xrender.c
@@ -1526,6 +1526,7 @@ BOOL X11DRV_AlphaBlend(X11DRV_PDEVICE *devDst, INT xDst, INT yDst, INT widthDst,
    ySrc      = pts[0].y;
    widthSrc  = pts[1].x - pts[0].x;
    heightSrc = pts[1].y - pts[0].y;
+    if (!widthDst || !heightDst || !widthSrc || !heightSrc) return TRUE;

 #ifndef HAVE_XRENDERSETPICTURETRANSFORM
    if(widthDst != widthSrc || heightDst != heightSrc)