From c821dbebf4f73ef7956f742845081e7b19c23a90 Mon Sep 17 00:00:00 2001
From: Yves Rizoud <yrizoud@gmail.com>
Date: Sat, 15 Feb 2014 17:34:43 +0000
Subject: [PATCH] Modify the RGB scale formula

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@2070 416bcca6-2ee7-4201-b75f-2eb2f807beb1
---
 src/palette.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/palette.c b/src/palette.c
index 6c184ecf..3d503488 100644
--- a/src/palette.c
+++ b/src/palette.c
@@ -77,7 +77,7 @@ int Get_palette_RGB_scale(void)
 /// The result is also in the 0-255 range.
 byte Round_palette_component(byte comp)
 {
-  return ((comp+128/RGB_scale)*(RGB_scale-1)/255*255+(RGB_scale&1?1:0))/(RGB_scale-1);
+  return (comp*RGB_scale/256+(RGB_scale-(256-1)*RGB_scale/256)/2) * (255/(RGB_scale-1));
 }
 
 ///