internal LZWStream(Stream inputStream, PredictorParameters predictorParam, LZWParameters lzwParam)
{
_inputStream = new LZWInputStream(inputStream, lzwParam.EarlyChange);
if (predictorParam.Predictor != 1)
{
_inputStream = new PredictorStream(_inputStream, predictorParam);
}
}
internal FlateStream(Stream inputStream, PredictorParameters param)
{
inputStream.ReadByte();
inputStream.ReadByte();
_inputStream = new DeflateStream(inputStream, CompressionMode.Decompress, true);
if (param.Predictor != 1)
{
_inputStream = new PredictorStream(_inputStream, param);
}
_eof = false;
}
internal PredictorStream(Stream inputStream, PredictorParameters param)
{
_inputStream = inputStream;
setPredictor(param.Predictor);
setBitsPerComponent(param.BitsPerComponent);
setColors(param.Colors);
_width = param.Columns;
_bpp = Math.Max(1, numBytesToHoldBits(_numComponents * _bitsPerComponent));
int bufSize = numBytesToHoldBits(_width * _numComponents * _bitsPerComponent);
_aboveBuffer = new byte[bufSize];
_buffer = new byte[bufSize];
}