private SmartStream ReadPre530Metadata(BundleFileReader reader)
{
switch (Header.Type)
{
case BundleType.UnityRaw:
{
Metadata.Read(reader);
return(m_stream.CreateReference());
}
case BundleType.UnityWeb:
{
// read only last chunk. wtf?
ChunkInfo chunkInfo = Header.ChunkInfos[Header.ChunkInfos.Count - 1];
using (SmartStream stream = SmartStream.CreateMemory(new byte[chunkInfo.DecompressedSize]))
{
SevenZipHelper.DecompressLZMASizeStream(reader.BaseStream, chunkInfo.CompressedSize, stream);
using (BundleFileReader decompressReader = new BundleFileReader(stream, reader.EndianType, reader.Generation))
{
Metadata.Read(decompressReader);
}
return(stream.CreateReference());
}
}
default:
throw new NotSupportedException($"Bundle type {Header.Type} isn't supported before 530 generation");
}
}
private void ReadPre530Metadata(EndianReader reader)
{
switch (Header.Type)
{
case BundleType.UnityRaw:
{
Metadata = new BundleMetadata(m_filePath);
Metadata.ReadPre530(reader);
}
break;
case BundleType.UnityWeb:
case BundleType.HexFA:
{
// read only last chunk. wtf?
ChunkInfo chunkInfo = Header.ChunkInfos[Header.ChunkInfos.Count - 1];
using (SmartStream stream = SmartStream.CreateMemory(new byte[chunkInfo.DecompressedSize]))
{
SevenZipHelper.DecompressLZMASizeStream(reader.BaseStream, chunkInfo.CompressedSize, stream);
Metadata = new BundleMetadata(m_filePath);
using (EndianReader decompressReader = new EndianReader(stream, EndianType.BigEndian))
{
Metadata.ReadPre530(decompressReader);
}
}
}
break;
default:
throw new NotSupportedException($"Bundle type {Header.Type} isn't supported before 530 generation");
}
}
private SmartStream ReadBrotli(EndianReader reader)
{
using (SmartStream stream = SmartStream.CreateMemory())
{
using (BrotliInputStream brotliStream = new BrotliInputStream(reader.BaseStream))
{
brotliStream.CopyTo(stream);
}
return(stream.CreateReference());
}
}
private SmartStream ReadGZip(EndianReader reader)
{
using (SmartStream stream = SmartStream.CreateMemory())
{
using (GZipStream gzipStream = new GZipStream(reader.BaseStream, CompressionMode.Decompress))
{
gzipStream.CopyTo(stream);
}
return(stream.CreateReference());
}
}
private void ReadBrotli(EndianReader reader)
{
using (SmartStream stream = SmartStream.CreateMemory())
{
using (BrotliInputStream brotliStream = new BrotliInputStream(reader.BaseStream))
{
brotliStream.CopyStream(stream);
stream.Position = 0;
}
string name = Path.GetFileName(m_filePath);
ArchiveFileEntry entry = new ArchiveFileEntry(stream, m_filePath, name, 0, stream.Length);
Metadata = new ArchiveMetadata(entry);
}
}
private void ReadGZip(EndianReader reader)
{
using (SmartStream stream = SmartStream.CreateMemory())
{
using (GZipStream gzipStream = new GZipStream(reader.BaseStream, CompressionMode.Decompress))
{
gzipStream.CopyTo(stream);
stream.Position = 0;
}
string name = Path.GetFileName(m_filePath);
ArchiveFileEntry entry = new ArchiveFileEntry(stream, m_filePath, name, 0, stream.Length);
Metadata = new ArchiveMetadata(entry);
}
}
private SmartStream CreateStream(long decompressedSize)
{
return(decompressedSize > int.MaxValue ? SmartStream.CreateTemp() : SmartStream.CreateMemory(new byte[decompressedSize]));
}