From f8478cecb30d36d3e5efaa1f2af0f68922e308a0 Mon Sep 17 00:00:00 2001
From: frosch <frosch@openttd.org>
Date: Sun, 27 Nov 2011 14:53:05 +0000
Subject: [PATCH] (svn r23343) -Fix (r23332): Incorrect encoding of sprites
 with much transparency.

---
 src/blitter/8bpp_optimized.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/blitter/8bpp_optimized.cpp b/src/blitter/8bpp_optimized.cpp
index 5106bd15fc..300c79b52f 100644
--- a/src/blitter/8bpp_optimized.cpp
+++ b/src/blitter/8bpp_optimized.cpp
@@ -196,9 +196,13 @@ Sprite *Blitter_8bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPro
 					dst++;
 				}
 				last_colour = colour;
-				pixels++;
-				*dst = colour;
-				dst++;
+				if (colour == 0) {
+					trans++;
+				} else {
+					pixels++;
+					*dst = colour;
+					dst++;
+				}
 			}
 
 			if (count_dst != NULL) *count_dst = pixels;