public static int DecompressBlock(byte[] inBuffer, int inLength, byte[] outBuffer, bool multi)
{
byte[] tempBuffer;
if (!multi)
{
return(DclCompression.DecompressBlock(inBuffer, 0, inLength, outBuffer));
}
else // Examinate first byte for finding compression methods used
{
switch (inBuffer[0])
{
case 0x01: // Huffman
throw new MpqCompressionNotSupportedException(0x01, "Huffman");
case 0x02: // Zlib (Deflate/Inflate)
#if USE_SHARPZIPLIB // Use SharpZipLib's Deflate implementation
Inflater.Reset(); // The first property read will initialize the field…
inflater.SetInput(inBuffer, 1, inLength - 1);
return(inflater.Inflate(outBuffer));
#else // Use .NET 2.0's built-in inflate algorithm
using (var inStream = new MemoryStream(inBuffer, 3, inLength - 7, false, false))
using (var outStream = new DeflateStream(inStream, CompressionMode.Decompress))
outStream.Read(outBuffer, 0, outBuffer.Length);
#endif
case 0x08: // PKWare DCL (Implode/Explode)
return(DclCompression.DecompressBlock(inBuffer, 1, inLength - 1, outBuffer));
case 0x10: // BZip2
#if USE_SHARPZIPLIB // Use SharpZipLib for decompression
using (var inStream = new MemoryStream(inBuffer, 1, inLength - 1, false, false))
using (var outStream = new BZip2InputStream(inStream))
return(outStream.Read(outBuffer, 0, outBuffer.Length));
#else
throw new CompressionNotSupportedException("BZip2");
#endif
case 0x12: // LZMA
using (var inStream = new MemoryStream(inBuffer, 1, inLength - 1, false, false))
using (var outStream = new MemoryStream(outBuffer, true))
{
lzmaDecoder.Code(inStream, outStream, inStream.Length, outStream.Length, null);
return(checked ((int)outStream.Position));
}
case 0x20: // Sparse
return(SparseCompression.DecompressBlock(inBuffer, 1, inLength - 1, outBuffer));
case 0x22: // Sparse + Deflate
#if USE_SHARPZIPLIB // Use SharpZipLib's Deflate implementation
Inflater.Reset(); // The first property read will initialize the field…
inflater.SetInput(inBuffer, 1, inLength - 1);
tempBuffer = CommonMethods.GetSharedBuffer(outBuffer.Length);
return(SparseCompression.DecompressBlock(tempBuffer, 0, inflater.Inflate(tempBuffer), outBuffer));
#else // Use .NET 2.0's built-in inflate algorithm
using (var inStream = new MemoryStream(inBuffer, 3, inLength - 7, false, false))
using (var inoutStream = new DeflateStream(inStream, CompressionMode.Decompress))
using (var outStream = new SparseInputStream(inoutStream))
return(outStream.Read(outBuffer, 0, outBuffer.Length));
#endif
case 0x30: // Sparse + BZip2
#if USE_SHARPZIPLIB // Use SharpZipLib for decompression
using (var inStream = new MemoryStream(inBuffer, 1, inLength - 1, false, false))
using (var inoutStream = new BZip2InputStream(inStream))
using (var outStream = new SparseInputStream(inoutStream))
return(outStream.Read(outBuffer, 0, outBuffer.Length));
#else
throw new CompressionNotSupportedException("Sparse + BZip2");
#endif
case 0x40: // Mono IMA ADPCM
throw new MpqCompressionNotSupportedException(0x40, "Mono IMA ADPCM");
case 0x41: // Mono IMA ADPCM + Huffman
throw new MpqCompressionNotSupportedException(0x41, "Mono IMA ADPCM + Huffman");
case 0x48: // Mono IMA ADPCM + Implode
throw new MpqCompressionNotSupportedException(0x48, "Mono IMA ADPCM + Implode");
case 0x80: // Stereo IMA ADPCM
throw new MpqCompressionNotSupportedException(0x80, "Stereo IMA ADPCM");
case 0x81: // Stereo IMA ADPCM + Huffman
throw new MpqCompressionNotSupportedException(0x81, "Stereo IMA ADPCM + Huffman");
case 0x88: // Stereo IMA ADPCM + Implode
throw new MpqCompressionNotSupportedException(0x88, "Stereo IMA ADPCM + Implode");
default:
throw new MpqCompressionNotSupportedException(inBuffer[0]);
}
}
}
public static int DecompressBlock(byte[] inBuffer, int inLength, byte[] outBuffer, bool multi)
{
byte[] tempBuffer;
if (!multi) return DclCompression.DecompressBlock(inBuffer, 0, inLength, outBuffer);
else // Examinate first byte for finding compression methods used
{
switch (inBuffer[0])
{
case 0x01: // Huffman
throw new MpqCompressionNotSupportedException(0x01, "Huffman");
case 0x02: // Zlib (Deflate/Inflate)
#if USE_SHARPZIPLIB // Use SharpZipLib's Deflate implementation
Inflater.Reset(); // The first property read will initialize the field…
inflater.SetInput(inBuffer, 1, inLength - 1);
return inflater.Inflate(outBuffer);
#else // Use .NET 2.0's built-in inflate algorithm
using (var inStream = new MemoryStream(inBuffer, 3, inLength - 7, false, false))
using (var outStream = new DeflateStream(inStream, CompressionMode.Decompress))
outStream.Read(outBuffer, 0, outBuffer.Length);
#endif
case 0x08: // PKWare DCL (Implode/Explode)
return DclCompression.DecompressBlock(inBuffer, 1, inLength - 1, outBuffer);
case 0x10: // BZip2
#if USE_SHARPZIPLIB // Use SharpZipLib for decompression
using (var inStream = new MemoryStream(inBuffer, 1, inLength - 1, false, false))
using (var outStream = new BZip2InputStream(inStream))
return outStream.Read(outBuffer, 0, outBuffer.Length);
#else
throw new CompressionNotSupportedException("BZip2");
#endif
case 0x12: // LZMA
using (var inStream = new MemoryStream(inBuffer, 1, inLength - 1, false, false))
using (var outStream = new MemoryStream(outBuffer, true))
{
lzmaDecoder.Code(inStream, outStream, inStream.Length, outStream.Length, null);
return checked((int)outStream.Position);
}
case 0x20: // Sparse
return SparseCompression.DecompressBlock(inBuffer, 1, inLength - 1, outBuffer);
case 0x22: // Sparse + Deflate
#if USE_SHARPZIPLIB // Use SharpZipLib's Deflate implementation
Inflater.Reset(); // The first property read will initialize the field…
inflater.SetInput(inBuffer, 1, inLength - 1);
tempBuffer = CommonMethods.GetSharedBuffer(outBuffer.Length);
return SparseCompression.DecompressBlock(tempBuffer, 0, inflater.Inflate(tempBuffer), outBuffer);
#else // Use .NET 2.0's built-in inflate algorithm
using (var inStream = new MemoryStream(inBuffer, 3, inLength - 7, false, false))
using (var inoutStream = new DeflateStream(inStream, CompressionMode.Decompress))
using (var outStream = new SparseInputStream(inoutStream))
return outStream.Read(outBuffer, 0, outBuffer.Length);
#endif
case 0x30: // Sparse + BZip2
#if USE_SHARPZIPLIB // Use SharpZipLib for decompression
using (var inStream = new MemoryStream(inBuffer, 1, inLength - 1, false, false))
using (var inoutStream = new BZip2InputStream(inStream))
using (var outStream = new SparseInputStream(inoutStream))
return outStream.Read(outBuffer, 0, outBuffer.Length);
#else
throw new CompressionNotSupportedException("Sparse + BZip2");
#endif
case 0x40: // Mono IMA ADPCM
throw new MpqCompressionNotSupportedException(0x40, "Mono IMA ADPCM");
case 0x41: // Mono IMA ADPCM + Huffman
throw new MpqCompressionNotSupportedException(0x41, "Mono IMA ADPCM + Huffman");
case 0x48: // Mono IMA ADPCM + Implode
throw new MpqCompressionNotSupportedException(0x48, "Mono IMA ADPCM + Implode");
case 0x80: // Stereo IMA ADPCM
throw new MpqCompressionNotSupportedException(0x80, "Stereo IMA ADPCM");
case 0x81: // Stereo IMA ADPCM + Huffman
throw new MpqCompressionNotSupportedException(0x81, "Stereo IMA ADPCM + Huffman");
case 0x88: // Stereo IMA ADPCM + Implode
throw new MpqCompressionNotSupportedException(0x88, "Stereo IMA ADPCM + Implode");
default:
throw new MpqCompressionNotSupportedException(inBuffer[0]);
}
}
}
