From 379fe274dfe713c508cff6908444ae87c722d124 Mon Sep 17 00:00:00 2001
From: Max Horn <max@quendi.de>
Date: Tue, 27 Jan 2009 01:35:21 +0000
Subject: [PATCH] Replaced small lookup table in 2xsai by direct computation

svn-id: r36089
---
 graphics/scaler/2xsai.cpp | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/graphics/scaler/2xsai.cpp b/graphics/scaler/2xsai.cpp
index 37b5457dd86..adea68ba787 100644
--- a/graphics/scaler/2xsai.cpp
+++ b/graphics/scaler/2xsai.cpp
@@ -38,12 +38,7 @@ static inline int GetResult(uint32 A, uint32 B, uint32 C, uint32 D) {
 	const int y2 = (bd & !ad);
 	const int x = x1+x2;
 	const int y = y1+y2;
-	static const int rmap[3][3] = {
-			{0, 0, -1},
-			{0, 0, -1},
-			{1, 1,  0}
-		};
-	return rmap[y][x];
+	return (y>>1) - (x>>1);
 }
 
 #define interpolate_1_1		interpolate16_1_1<Graphics::ColorMasks<bitFormat> >