From f2926412fe7966bc34ceea1f87f2a4dae51df2eb Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Mon, 14 Dec 2015 02:14:13 +0100
Subject: GRAPHICS: Fix fast ALPHA_BINARY blitting with TransparentSurface.

This is a regression from 5d0f38d747e7583d0ca5959cd642468ba67cd04c and caused
color glitches in Wintermute.
---
 graphics/transparent_surface.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'graphics')

diff --git a/graphics/transparent_surface.cpp b/graphics/transparent_surface.cpp
index 992a5dc879..19e7655a93 100644
--- a/graphics/transparent_surface.cpp
+++ b/graphics/transparent_surface.cpp
@@ -116,7 +116,7 @@ void doBlitBinaryFast(byte *ino, byte *outo, uint32 width, uint32 height, uint32
 		in = ino;
 		for (uint32 j = 0; j < width; j++) {
 			uint32 pix = *(uint32 *)in;
-			int a = (pix >> kAModShift) & 0xff;
+			int a = in[kAIndex];
 
 			if (a != 0) {   // Full opacity (Any value not exactly 0 is Opaque here)
 				*(uint32 *)out = pix;
-- 
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