(svn r26463) -Fix (r10190ish): Add special handling for PALETTE_CRASH to work for non-8bpp-mapped sprites.

src/blitter/32bpp_base.hpp

@@ -112,6 +112,19 @@ public:
 		return Colour(r * nom / denom, g * nom / denom, b * nom / denom);
 	}
 
+	/**
+	 * Make a colour dark grey, for specialized 32bpp remapping.
+	 * @param r red component
+	 * @param g green component
+	 * @param b blue component
+	 * @return the brightness value of the new colour, now dark grey.
+	 */
+	static inline uint8 MakeDark(uint8 r, uint8 g, uint8 b)
+	{
+		/* Magic-numbers are ~66% of those used in MakeGrey() */
+		return ((r * 13063) + (g * 25647) + (b * 4981)) / 65536;
+	}
+
 	/**
 	 * Make a colour grey - based.
 	 * @param colour the colour to make grey.