/* Compression types in order:
* 10 = BZip2
* 8 = PKLib
* 2 = ZLib
* 1 = Huffman
* 80 = IMA ADPCM Stereo
* 40 = IMA ADPCM Mono
*/
private static byte[] DecompressMulti(byte[] Input, int OutputLength)
{
Stream sinput = new MemoryStream(Input);
byte comptype = (byte)sinput.ReadByte();
#if WITH_BZIP
// BZip2
if ((comptype & 0x10) != 0)
{
byte[] result = BZip2Decompress(sinput, OutputLength);
comptype &= 0xEF;
if (comptype == 0) return result;
sinput = new MemoryStream(result);
}
#endif
// PKLib
if ((comptype & 8) != 0)
{
byte[] result = PKDecompress(sinput, OutputLength);
comptype &= 0xF7;
if (comptype == 0) return result;
sinput = new MemoryStream(result);
}
#if WITH_ZLIB
// ZLib
if ((comptype & 2) != 0)
{
byte[] result = ZlibDecompress(sinput, OutputLength);
comptype &= 0xFD;
if (comptype == 0) return result;
sinput = new MemoryStream(result);
}
#endif
if ((comptype & 1) != 0)
{
byte[] result = MpqHuffman.Decompress(sinput);
comptype &= 0xfe;
if (comptype == 0) return result;
sinput = new MemoryStream(result);
}
if ((comptype & 0x80) != 0)
{
byte[] result = MpqWavCompression.Decompress(sinput, 2);
comptype &= 0x7f;
if (comptype == 0) return result;
sinput = new MemoryStream(result);
}
if ((comptype & 0x40) != 0)
{
byte[] result = MpqWavCompression.Decompress(sinput, 1);
comptype &= 0xbf;
if (comptype == 0) return result;
sinput = new MemoryStream(result);
}
throw new MpqParserException(String.Format("Unhandled compression flags: 0x{0:X}", comptype));
}
/* Compression types in order:
* 10 = BZip2
* 8 = PKLib
* 2 = ZLib
* 1 = Huffman
* 80 = IMA ADPCM Stereo
* 40 = IMA ADPCM Mono
*/
private static byte[] DecompressMulti(byte[] input, int outputLength)
{
Stream sinput = new MemoryStream(input);
byte comptype = (byte)sinput.ReadByte();
// WC3 onward mosly use Zlib
// Starcraft 1 mostly uses PKLib, plus types 41 and 81 for audio files
switch (comptype)
{
case 1: // Huffman
return(MpqHuffman.Decompress(sinput).ToArray());
case 2: // ZLib/Deflate
#if WITH_ZLIB
return(ZlibDecompress(sinput, outputLength));
#endif
case 8: // PKLib/Impode
return(PKDecompress(sinput, outputLength));
case 0x10: // BZip2
#if WITH_BZIP
return(BZip2Decompress(sinput, outputLength));
#endif
case 0x80: // IMA ADPCM Stereo
return(MpqWavCompression.Decompress(sinput, 2));
case 0x40: // IMA ADPCM Mono
return(MpqWavCompression.Decompress(sinput, 1));
case 0x12:
// TODO: LZMA
throw new MpqParserException("LZMA compression is not yet supported");
// Combos
case 0x22:
// TODO: sparse then zlib
throw new MpqParserException("Sparse compression + Deflate compression is not yet supported");
case 0x30:
// TODO: sparse then bzip2
throw new MpqParserException("Sparse compression + BZip2 compression is not yet supported");
case 0x41:
sinput = MpqHuffman.Decompress(sinput);
return(MpqWavCompression.Decompress(sinput, 1));
case 0x48:
{
byte[] result = PKDecompress(sinput, outputLength);
return(MpqWavCompression.Decompress(new MemoryStream(result), 1));
}
case 0x81:
sinput = MpqHuffman.Decompress(sinput);
return(MpqWavCompression.Decompress(sinput, 2));
case 0x88:
{
byte[] result = PKDecompress(sinput, outputLength);
return(MpqWavCompression.Decompress(new MemoryStream(result), 2));
}
default:
throw new MpqParserException("Compression is not yet supported: 0x" + comptype.ToString("X"));
}
}