public static void ReadSubStreamsInfo(BinaryReader br, ref Folder[] Folders)
{
for (; ;)
{
HeaderProperty hp = (HeaderProperty)br.ReadByte();
switch (hp)
{
case HeaderProperty.kNumUnPackStream:
{
for (int f = 0; f < Folders.Length; f++)
{
int numStreams = (int)br.ReadEncodedUInt64();
Folders[f].UnpackedStreamInfo = new UnpackedStreamInfo[numStreams];
for (int i = 0; i < numStreams; i++)
{
Folders[f].UnpackedStreamInfo[i] = new UnpackedStreamInfo();
}
}
continue;
}
case HeaderProperty.kSize:
{
for (int f = 0; f < Folders.Length; f++)
{
Folder folder = Folders[f];
if (folder.UnpackedStreamInfo.Length == 0)
{
continue;
}
ulong sum = 0;
for (int i = 0; i < folder.UnpackedStreamInfo.Length - 1; i++)
{
ulong size = br.ReadEncodedUInt64();
folder.UnpackedStreamInfo[i].UnpackedSize = size;
sum += size;
}
folder.UnpackedStreamInfo[folder.UnpackedStreamInfo.Length - 1].UnpackedSize =
folder.GetUnpackSize() - sum;
}
continue;
}
case HeaderProperty.kCRC:
{
ulong numCRC = 0;
foreach (Folder folder in Folders)
{
if (folder.UnpackedStreamInfo == null)
{
folder.UnpackedStreamInfo = new UnpackedStreamInfo[1];
folder.UnpackedStreamInfo[0] = new UnpackedStreamInfo();
folder.UnpackedStreamInfo[0].UnpackedSize = folder.GetUnpackSize();
}
if ((folder.UnpackedStreamInfo.Length != 1) || !folder.UnpackCRC.HasValue)
{
numCRC += (ulong)folder.UnpackedStreamInfo.Length;
}
}
int crcIndex = 0;
uint?[] crc;
Util.UnPackCRCs(br, numCRC, out crc);
for (uint i = 0; i < Folders.Length; i++)
{
Folder folder = Folders[i];
if ((folder.UnpackedStreamInfo.Length == 1) && folder.UnpackCRC.HasValue)
{
folder.UnpackedStreamInfo[0].Crc = folder.UnpackCRC;
}
else
{
for (uint j = 0; j < folder.UnpackedStreamInfo.Length; j++, crcIndex++)
{
folder.UnpackedStreamInfo[j].Crc = crc[crcIndex];
}
}
}
continue;
}
case HeaderProperty.kEnd:
return;
default:
throw new Exception(hp.ToString());
}
}
}
public static void ReadUnPackInfo(BinaryReader br, out Folder[] Folders)
{
Folders = null;
for (; ;)
{
HeaderProperty hp = (HeaderProperty)br.ReadByte();
switch (hp)
{
case HeaderProperty.kFolder:
{
ulong numFolders = br.ReadEncodedUInt64();
Folders = new Folder[numFolders];
byte external = br.ReadByte();
switch (external)
{
case 0:
{
ulong folderIndex = 0;
for (uint i = 0; i < numFolders; i++)
{
Folders[i] = new Folder();
Folders[i].ReadFolder(br);
Folders[i].PackedStreamIndexBase = folderIndex;
folderIndex += (ulong)Folders[i].PackedStreamIndices.Length;
}
break;
}
case 1:
throw new NotSupportedException("External flag");
}
continue;
}
case HeaderProperty.kCodersUnPackSize:
{
for (uint i = 0; i < Folders.Length; i++)
{
Folders[i].ReadUnpackedStreamSize(br);
}
continue;
}
case HeaderProperty.kCRC:
{
uint?[] crcs;
Util.UnPackCRCs(br, (ulong)Folders.Length, out crcs);
for (int i = 0; i < Folders.Length; i++)
{
Folders[i].UnpackCRC = crcs[i];
}
continue;
}
case HeaderProperty.kEnd:
return;
default:
throw new Exception(hp.ToString());
}
}
}
