From f50d272e41f0f8354f5006dfaddc5e3587ca0b7d Mon Sep 17 00:00:00 2001
From: Tim Goya <tuxdev103@gmail.com>
Date: Fri, 24 Aug 2007 18:43:08 +0000
Subject: [PATCH] SDL: don't take note of a color in the optimizer if the pixel
 is strictly transparent

SVN-Revision: 5156
---
 src/video/sdl_texture.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/video/sdl_texture.cpp b/src/video/sdl_texture.cpp
index b5b6dc689..21645507e 100644
--- a/src/video/sdl_texture.cpp
+++ b/src/video/sdl_texture.cpp
@@ -483,7 +483,10 @@ namespace
             semitransparent++;
             squaredalphasum += alpha * alpha;
           }
-          colors[((red & 0xf0) << 4) | (green & 0xf0) | ((blue & 0xf0) >> 4)] = true;
+          if(alpha != 0)
+          {
+            colors[((red & 0xf0) << 4) | (green & 0xf0) | ((blue & 0xf0) >> 4)] = true;
+          }
         }
       }
       if(SDL_MUSTLOCK(src))
-- 
2.11.0