BitMiracle.LibTiff.Classic.TiffRgbaImage.putcontig8bitYCbCr41tile C# (CSharp) Method

        private static void putcontig8bitYCbCr41tile(
            TiffRgbaImage img, int[] raster, int rasterOffset, int rasterShift,
            int x, int y, int width, int height, byte[] buffer, int offset, int bufferShift)
        {
            // XXX adjust bufferShift
            do
            {
                x = width >> 2;
                do
                {
                    int Cb = buffer[offset + 4];
                    int Cr = buffer[offset + 5];

                    img.YCbCrtoRGB(out raster[rasterOffset + 0], buffer[offset + 0], Cb, Cr);
                    img.YCbCrtoRGB(out raster[rasterOffset + 1], buffer[offset + 1], Cb, Cr);
                    img.YCbCrtoRGB(out raster[rasterOffset + 2], buffer[offset + 2], Cb, Cr);
                    img.YCbCrtoRGB(out raster[rasterOffset + 3], buffer[offset + 3], Cb, Cr);

                    rasterOffset += 4;
                    offset += 6;
                }
                while (--x != 0);

                if ((width & 3) != 0)
                {
                    int Cb = buffer[offset + 4];
                    int Cr = buffer[offset + 5];

                    int xx = width & 3;
                    if (xx == 3)
                        img.YCbCrtoRGB(out raster[rasterOffset + 2], buffer[offset + 2], Cb, Cr);

                    if (xx == 3 || xx == 2)
                        img.YCbCrtoRGB(out raster[rasterOffset + 1], buffer[offset + 1], Cb, Cr);

                    if (xx == 3 || xx == 2 || xx == 1)
                        img.YCbCrtoRGB(out raster[rasterOffset + 0], buffer[offset + 0], Cb, Cr);

                    rasterOffset += xx;
                    offset += 6;
                }

                rasterOffset += rasterShift;
                offset += bufferShift;
            }
            while (--height != 0);
        }