private FolderRecord[] LoadFolderRecords()
{
using var rdr = GetStream();
rdr.BaseStream.Position = _folderRecordOffset;
var folderHeaderLength = FolderRecord.HeaderLength(HeaderType);
ReadOnlyMemorySlice <byte> folderHeaderData = rdr.ReadBytes(checked ((int)(folderHeaderLength * _folderCount)));
var ret = new FolderRecord[_folderCount];
for (var idx = 0; idx < _folderCount; idx += 1)
{
ret[idx] = new FolderRecord(this, folderHeaderData.Slice(idx * folderHeaderLength, folderHeaderLength), idx);
}
// Slice off appropriate file header data per folder
int fileCountTally = 0;
foreach (var folder in ret)
{
folder.ProcessFileRecordHeadersBlock(rdr, fileCountTally);
fileCountTally = checked ((int)(fileCountTally + folder.FileCount));
}
if (HasFileNames)
{
var filenameBlock = new FileNameBlock(this, rdr.BaseStream.Position);
foreach (var folder in ret)
{
folder.FileNameBlock = filenameBlock;
}
}
return(ret);
}
public FileRecord(BSAReader bsa, FolderRecord folderRecord, BinaryReader src, int index)
{
_index = index;
_bsa = bsa;
Hash = src.ReadUInt64();
var size = src.ReadUInt32();
FlipCompression = (size & (0x1 << 30)) > 0;
if (FlipCompression)
{
_size = size ^ (0x1 << 30);
}
else
{
_size = size;
}
if (Compressed)
{
_size -= 4;
}
_offset = src.ReadUInt32();
Folder = folderRecord;
var old_pos = src.BaseStream.Position;
src.BaseStream.Position = _offset;
if (bsa.HasNameBlobs)
{
_nameBlob = src.ReadStringLenNoTerm(bsa.HeaderType);
}
if (Compressed)
{
_originalSize = src.ReadUInt32();
}
_onDiskSize = (uint)(_size - (_nameBlob == null ? 0 : _nameBlob.Length + 1));
if (Compressed)
{
_dataSize = _originalSize;
_onDiskSize -= 4;
}
else
{
_dataSize = _onDiskSize;
}
_dataOffset = src.BaseStream.Position;
src.BaseStream.Position = old_pos;
}
public FileRecord(BSAReader bsa, FolderRecord folderRecord, BinaryReader src)
{
_bsa = bsa;
_hash = src.ReadUInt64();
var size = src.ReadInt32();
_compressedFlag = (size & (0x1 << 30)) > 0;
if (_compressedFlag)
{
_size = size ^ (0x1 << 30);
}
else
{
_size = size;
}
_offset = src.ReadInt32();
_folder = folderRecord;
}
internal void LoadFileRecord(BSAReader bsaReader, FolderRecord folder, FileRecord file, BinaryReader rdr)
{
_name = rdr.ReadStringTerm(_bsa.HeaderType);
}
