コード例 #1
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]);
                }
            }
        }
コード例 #2
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]);
                }
            }
        }