public Packfile(Stream stream, bool isStr2) { IsStr2 = isStr2; stream.Seek(0, SeekOrigin.Begin); FileData = stream.ReadStruct <PackfileFileData>(); m_Files = new List <IPackfileEntry>(); uint runningPosition = 0; List <PackfileEntryFileData> entryFileData = new List <PackfileEntryFileData>(); for (int i = 0; i < FileData.NumFiles; i++) { PackfileEntryFileData data = stream.ReadStruct <PackfileEntryFileData>(); if (IsCondensed && IsCompressed) { data.Flags = 0; data.Start = runningPosition; runningPosition += data.Size; } else if (IsCondensed) { data.Start = runningPosition; runningPosition += data.Size.Align(16); } entryFileData.Add(data); } for (int i = 0; i < FileData.NumFiles; i++) { stream.Align(2); string filename = stream.ReadAsciiNullTerminatedString(); stream.Seek(1, SeekOrigin.Current); m_Files.Add(new PackfileEntry(this, entryFileData[i], filename)); stream.Align(2); } if (IsCondensed && IsCompressed) { DataOffset = 0; byte[] compressedData = new byte[FileData.CompressedDataSize]; stream.Read(compressedData, 0, (int)FileData.CompressedDataSize); using (MemoryStream tempStream = new MemoryStream(compressedData)) { using (Stream s = new ZlibStream(tempStream, CompressionMode.Decompress, true)) { byte[] uncompressedData = new byte[FileData.DataSize]; s.Read(uncompressedData, 0, (int)FileData.DataSize); DataStream = new MemoryStream(uncompressedData); } } } else { DataStream = stream; DataOffset = stream.Position; } }
public Packfile(Stream stream, bool isStr2) { IsStr2 = isStr2; stream.Seek(0, SeekOrigin.Begin); FileData = stream.ReadStruct<PackfileFileData>(); m_Files = new List<IPackfileEntry>(); uint runningPosition = 0; List<PackfileEntryFileData> entryFileData = new List<PackfileEntryFileData>(); for (int i = 0; i < FileData.NumFiles; i++) { PackfileEntryFileData data = stream.ReadStruct<PackfileEntryFileData>(); if (IsCondensed && IsCompressed) { data.Flags = 0; data.Start = runningPosition; runningPosition += data.Size; } else if (IsCondensed) { data.Start = runningPosition; runningPosition += data.Size.Align(16); } entryFileData.Add(data); } for (int i = 0; i < FileData.NumFiles; i++) { stream.Align(2); string filename = stream.ReadAsciiNullTerminatedString(); stream.Seek(1, SeekOrigin.Current); m_Files.Add(new PackfileEntry(this, entryFileData[i], filename)); stream.Align(2); } if (IsCondensed && IsCompressed) { DataOffset = 0; byte[] compressedData = new byte[FileData.CompressedDataSize]; stream.Read(compressedData, 0, (int)FileData.CompressedDataSize); using (MemoryStream tempStream = new MemoryStream(compressedData)) { using (Stream s = new ZlibStream(tempStream, CompressionMode.Decompress, true)) { byte[] uncompressedData = new byte[FileData.DataSize]; s.Read(uncompressedData, 0, (int)FileData.DataSize); DataStream = new MemoryStream(uncompressedData); } } } else { DataStream = stream; DataOffset = stream.Position; } }