Asciimation.RLE.Encode C# (CSharp) Метод

        public static byte[] Encode(byte[] bytes)
        {
            List<byte> result = new List<byte>();

            int i = 0;
            while (i < bytes.Length)
            {
                int j = i;
                do
                {
                    j++;
                }
                while (j != bytes.Length && bytes[j] == bytes[i]);

                int repeatCount = j - i;
                if (repeatCount >= 2)
                {
                    int segmentCount = repeatCount / 129;
                    int rest = repeatCount % 129;

                    for (int k = 0; k < segmentCount; k++)
                    {
                        result.Add(127);
                        result.Add(bytes[i]);
                    }
                    result.Add((byte)(rest - 2));
                    result.Add(bytes[i]);
                    i = j;
                }
                else
                {
                    while (j != bytes.Length && bytes[j] != bytes[j - 1])
                        j++;

                    int nonrepeatCount = j - i;
                    if (j != bytes.Length)
                        nonrepeatCount--;
                    int segmentCount = nonrepeatCount / 128;
                    int rest = nonrepeatCount % 128;

                    for (int k = 0; k < segmentCount; k++)
                    {
                        result.Add(0xFF);
                        for (int l = 0; l < 128; l++)
                            result.Add(bytes[i + k * 128 + l]);
                    }
                    result.Add((byte)(0x80 | (rest - 1)));
                    for (int l = 0; l < rest; l++)
                        result.Add(bytes[i + segmentCount * 128 + l]);
                    i = j;
                    if (j != bytes.Length)
                        i--;
                }
            }

            return result.ToArray();
        }