Avoid division by zero.

bb84359c · Andreas Mohr · Alexandre Julliard · 6e9c506f · bb84359c
Commit bb84359c authored Nov 04, 2000 by Andreas Mohr Committed by Alexandre Julliard Nov 04, 2000
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main.c dlls/ddraw/dsurface/main.c +2 -0

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--- a/dlls/ddraw/dsurface/main.c
+++ b/dlls/ddraw/dsurface/main.c
@@ -281,6 +281,8 @@ HRESULT WINAPI IDirectDrawSurface4Impl_Blt(
 	LPBYTE sbase;
 	int sx, xinc, sy, yinc;

+	if (!dstwidth || !dstheight) /* hmm... stupid program ? */
+	    goto release;
 	sbase = (BYTE*)sdesc.u1.lpSurface+(xsrc.top*sdesc.lPitch)+xsrc.left*bpp;
 	xinc = (srcwidth << 16) / dstwidth;
 	yinc = (srcheight << 16) / dstheight;