private static void ReadDXTColour(int colour, ref byte red, ref byte blue, ref byte green) { // Read RGB 5:6:5 data // Expand to 8 bit data red = (byte)((colour & 0xF800) >> 8); blue = (byte)((colour & 0x7E0) >> 3); green = (byte)((colour & 0x1F) << 3); }