unsafe
                        {
                            byte* ptr = (byte*)data.Scan0;
                            short colorValue = 0;
                            bool isLastDigit = false;
                            for (int length = file.ReadBlock(buffer, 0, buffer.Length); length != 0; length = file.ReadBlock(buffer, 0, buffer.Length))
                            {
                                for (int i = 0; i < length; i++)
                                {
                                    if (Char.IsDigit(buffer[i]) && !isComment)
                                    {
                                        colorValue = (short)(colorValue * 10 + buffer[i] - '0');
                                        isLastDigit = true;
                                    }
                                    else if (isComment && (buffer[i] == '\n'))
                                    {
                                        isComment = false;
                                    }
                                    else
                                    {
                                        if (isLastDigit)
                                        {
                                            *(ptr++) = (byte)((colorValue * 255) / dimension.ColourRange.Value);
                                            isLastDigit = false;
                                            colorValue = 0;
                                        }
                                        if (buffer[i] == '#')
                                            isComment = true;
                                    }
                                };
                            }
                            bmp.UnlockBits(data);
                        }