Fix for stupid applications reading some bytes after the end of the

surface memory.

Fix for stupid applications reading some bytes after the end of the
442b235e · Lionel Ulmer · Alexandre Julliard · 00a3d5f3 · 442b235e
Commit 442b235e authored Jan 02, 2003 by Lionel Ulmer Committed by Alexandre Julliard Jan 02, 2003
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dib.c dlls/ddraw/dsurface/dib.c +2 -1

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--- a/dlls/ddraw/dsurface/dib.c
+++ b/dlls/ddraw/dsurface/dib.c
@@ -249,7 +249,8 @@ HRESULT DIB_DirectDrawSurface_Construct(IDirectDrawSurfaceImpl *This,

 	This->surface_desc.lpSurface
 	    = VirtualAlloc(NULL, This->surface_desc.u1.lPitch
-			   * This->surface_desc.dwHeight,
+			   * This->surface_desc.dwHeight + 4, /* The + 4 here is for dumb games reading after the end of the surface
+								 when reading the last byte / half using word access */
 			   MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);

 	if (This->surface_desc.lpSurface == NULL)