public Packfile(Stream stream)
{
stream.Seek(0, SeekOrigin.Begin);
FileData = stream.ReadStruct<PackfileFileData>();
m_Files = new List<IPackfileEntry>();
stream.Seek(GetEntryDataOffset(), SeekOrigin.Begin);
List<PackfileEntryFileData> entryFileData = new List<PackfileEntryFileData>();
for (int i = 0; i < FileData.NumFiles; i++)
{
var fileData = stream.ReadStruct<PackfileEntryFileData>();
entryFileData.Add(fileData);
}
uint runningPosition = 0;
List<string> fileNames = new List<string>();
for (int i = 0; i < FileData.NumFiles; i++)
{
var fileData = entryFileData[i];
stream.Seek(CalculateEntryNamesOffset() + fileData.Name, SeekOrigin.Begin);
string name = stream.ReadAsciiNullTerminatedString();
//stream.Seek(CalculateExtensionsOffset() + fileData., SeekOrigin.Begin);
//string extension = stream.ReadAsciiNullTerminatedString();
if (IsCondensed && IsCompressed)
{
fileData.Start = runningPosition;
runningPosition += fileData.Size.Align(64);
}
else if (IsCondensed)
{
fileData.Start = runningPosition;
runningPosition += fileData.Size.Align(16);
}
else if (IsCompressed)
{
fileData.Start = runningPosition;
runningPosition += fileData.CompressedSize.Align(2048);
}
m_Files.Add(new PackfileEntry(this, fileData, name));
}
if (IsCondensed && IsCompressed)
{
stream.Seek(CalculateDataStartOffset(), SeekOrigin.Begin);
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);
}
}
DataStream.Seek(0, SeekOrigin.Begin);
}
else
{
DataStream = stream;
DataOffset = CalculateDataStartOffset();
}
}
public Packfile()
{
FileData = new PackfileFileData();
m_Files = new List<IPackfileEntry>();
m_Streams = new Dictionary<string, Stream>();
}