/// <summary>
/// Initializes a new instance of the <see cref="Deflate" /> class.
/// </summary>
/// <param name="reader">The reader.</param>
private Deflate(BitReader reader)
{
this.input = reader;
this.outputStream = new MemoryStream();
this.output = new BinaryWriter(this.outputStream);
this.dictionary = new CircularDictionary(32 * 1024);
// Process the stream of blocks
while (true)
{
// Block header
var isFinal = this.input.ReadNoEof() != -1; // bfinal
var type = this.ReadInt(2); // btype
// Decompress by type
if (type == 0)
{
this.DecompressUncompressedBlock();
}
else if (type == 1 || type == 2)
{
CodeTree litLenCode, distCode;
if (type == 1)
{
litLenCode = FixedLiteralLengthCode;
distCode = FixedDistanceCode;
}
else
{
var temp = this.DecodeHuffmanCodes();
litLenCode = temp[0];
distCode = temp[1];
}
this.DecompressHuffmanBlock(litLenCode, distCode);
}
else if (type == 3)
{
throw new FormatException("Invalid block type");
}
else
{
throw new NotImplementedException();
}
if (isFinal)
{
break;
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Deflate" /> class.
/// </summary>
/// <param name="reader">The reader.</param>
private Deflate(BitReader reader)
{
this.input = reader;
this.outputStream = new MemoryStream();
this.output = new BinaryWriter(this.outputStream);
this.dictionary = new CircularDictionary(32 * 1024);
// Process the stream of blocks
while (true)
{
// Block header
var isFinal = this.input.ReadNoEof() != -1; // bfinal
var type = this.ReadInt(2); // btype
// Decompress by type
if (type == 0)
{
this.DecompressUncompressedBlock();
}
else if (type == 1 || type == 2)
{
CodeTree litLenCode, distCode;
if (type == 1)
{
litLenCode = FixedLiteralLengthCode;
distCode = FixedDistanceCode;
}
else
{
var temp = this.DecodeHuffmanCodes();
litLenCode = temp[0];
distCode = temp[1];
}
this.DecompressHuffmanBlock(litLenCode, distCode);
}
else if (type == 3)
{
throw new FormatException("Invalid block type");
}
else
{
throw new NotImplementedException();
}
if (isFinal)
{
break;
}
}
}
