From 5541af78b1b3ec506fcdd03c96104c4b10168742 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Fri, 1 Oct 2010 20:44:58 +0000
Subject: GRAPHICS: Add BPP check to Surface::move.

svn-id: r52968
---
 graphics/surface.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/graphics/surface.cpp b/graphics/surface.cpp
index b704c7fc9c..f06c24c2cd 100644
--- a/graphics/surface.cpp
+++ b/graphics/surface.cpp
@@ -185,6 +185,9 @@ void Surface::move(int dx, int dy, int height) {
 	if ((dx == 0 && dy == 0) || height <= 0)
 		return;
 
+	if (bytesPerPixel != 1 && bytesPerPixel != 2)
+		error("Surface::move: bytesPerPixel must be 1 or 2");
+
 	byte *src, *dst;
 	int x, y;
 
-- 
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