public byte[] Compress()
{
_builder.Append(HALC.RedundancyMagicSignature);
var literalBuffer = new ByteArrayBuilder();
while (HasMoreBytes())
{
var repeatCount = GetRepeatCount();
// try RLE first
if (repeatCount > HALC.RLECommandLength)
{
if (literalBuffer.Length > 0)
{
UseLiteral(literalBuffer.GetBytes());
literalBuffer = new ByteArrayBuilder();
}
UseRLE(repeatCount);
}
else
{
var previousOccurance = GetPreviousOccurance();
if (previousOccurance.BestMatchLength > HALC.ShortPointerCommandLength &&
previousOccurance.BestMatchOffset <= HALC.MaxShortPointerOffset &&
previousOccurance.BestMatchLength <= HALC.MaxShortPointerLength)
{
if (literalBuffer.Length > 0)
{
UseLiteral(literalBuffer.GetBytes());
literalBuffer = new ByteArrayBuilder();
}
UseShortPointer(previousOccurance);
}
else if (previousOccurance.BestMatchLength > HALC.LongPointerCommandLength)
{
if (literalBuffer.Length > 0)
{
UseLiteral(literalBuffer.GetBytes());
literalBuffer = new ByteArrayBuilder();
}
UseLongPointer(previousOccurance);
}
else
{
literalBuffer.Append(_uncompressed[_compressionPointer]);
_compressionPointer++;
}
}
}
if (literalBuffer.Length > 0)
{
UseLiteral(literalBuffer.GetBytes());
}
return(_builder.GetBytes());
}
public RedundancyDecompressor(byte[] compressed)
{
_compressed = compressed;
_builder = new ByteArrayBuilder();
}
public RedundancyCompressor(byte[] uncompressed)
{
_uncompressed = uncompressed;
_builder = new ByteArrayBuilder();
}
public ProbabilityCompressor(byte[] data)
{
_data = data;
_builder = new ByteArrayBuilder();
}