(svn r25820) -Codechange: More const-ness.

src/blitter/8bpp_optimized.hpp

@@ -25,7 +25,7 @@ public:
 	};
 
 	/* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom);
-	/* virtual */ Sprite *Encode(SpriteLoader::Sprite *sprite, AllocatorProc *allocator);
+	/* virtual */ Sprite *Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator);
 
 	/* virtual */ const char *GetName() { return "8bpp-optimized"; }
 };