[Scummvm-cvs-logs] SF.net SVN: scummvm:[38447] scummvm/trunk/graphics/VectorRendererSpec.cpp

[tanoku at users.sourceforge.net]

Revision: 38447
          http://scummvm.svn.sourceforge.net/scummvm/?rev=38447&view=rev
Author:   tanoku
Date:     2009-02-17 20:50:30 +0000 (Tue, 17 Feb 2009)

Log Message:
-----------
Fixed bug #2609755 (GUI memory corruption).

Modified Paths:
--------------
    scummvm/trunk/graphics/VectorRendererSpec.cpp

Modified: scummvm/trunk/graphics/VectorRendererSpec.cpp
===================================================================
--- scummvm/trunk/graphics/VectorRendererSpec.cpp	2009-02-17 20:43:37 UTC (rev 38446)
+++ scummvm/trunk/graphics/VectorRendererSpec.cpp	2009-02-17 20:50:30 UTC (rev 38447)
@@ -1096,6 +1096,10 @@
 
 	PixelType *ptr_right = 0, *ptr_left = 0;
 
+	if (x1 + size > Base::_activeSurface->w || x1 < 0 ||
+		y1 + size > Base::_activeSurface->h || y1 < 0)
+		return;
+
 	if (inverted) {
 		ptr_left = (PixelType *)_activeSurface->getBasePtr(x1, y1);
 		ptr_right = (PixelType *)_activeSurface->getBasePtr(x1 + size, y1);


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