From 145b0d83df1cbf6caecb61b5641bdf732fcf80e0 Mon Sep 17 00:00:00 2001
From: Alyssa Milburn
Date: Wed, 16 Feb 2011 16:00:42 +0100
Subject: PARALLACTION: Use signed math in fadeTo.

This fixes corruption during fades when low palette values end up negative.
---
 engines/parallaction/graphics.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'engines')

diff --git a/engines/parallaction/graphics.cpp b/engines/parallaction/graphics.cpp
index 259ad84f69..79993a297a 100644
--- a/engines/parallaction/graphics.cpp
+++ b/engines/parallaction/graphics.cpp
@@ -152,9 +152,9 @@ void Palette::fadeTo(const Palette& target, uint step) {
 		if (_data[i] == target._data[i]) continue;
 
 		if (_data[i] < target._data[i])
-			_data[i] = CLIP(_data[i] + step, (uint)0, (uint)target._data[i]);
+			_data[i] = CLIP(_data[i] + (int)step, (int)0, (int)target._data[i]);
 		else
-			_data[i] = CLIP(_data[i] - step, (uint)target._data[i], (uint)255);
+			_data[i] = CLIP(_data[i] - (int)step, (int)target._data[i], (int)255);
 	}
 
 	return;
-- 
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