public void Close()
{
_hedStream?.Dispose();
_hedStream = null;
_mrgStream?.Dispose();
_mrgStream = null;
_namStream?.Dispose();
_namStream = null;
_cpkStream?.Dispose();
_cpkStream = null;
nam?.Close();
nam = null;
foreach (var afi in Files)
{
if (afi.State != ArchiveFileState.Archived)
{
afi.FileData?.Dispose();
}
}
}
public HED(Stream hedStream, Stream namStream, Stream mrgStream, Stream cpkStream, string baseTerm)
{
_hedStream = hedStream;
_mrgStream = mrgStream;
if (namStream != null)
{
_namStream = namStream;
nam = new NAM(namStream, baseTerm);
hasNameFile = true;
}
if (cpkStream != null)
{
_cpkStream = cpkStream;
isEncrypted = true;
}
using (var hed = new BinaryReaderX(hedStream, true))
{
ushort unk1 = hed.ReadUInt16();
ushort firstEntryHigh = hed.ReadUInt16();
var entryLength = 8;
if ((firstEntryHigh & 0x0FFF) != 0)
{
entryLength = 4;
}
var recordCount = hed.BaseStream.Length / entryLength;
// Jump back to the start of the stream after assertaining our entry length
hed.BaseStream.Position = 0;
for (int i = 0; i < recordCount; ++i)
{
byte[] blob = hed.ReadBytes(entryLength);
using (var ms = new MemoryStream(blob))
using (var br = new BinaryReaderX(ms, true))
{
// No entry may contain all 0xFF bytes.
// This is due to the EOF marker for HED files being 16 0xFF bytes.
var firstWord = br.ReadUInt32();
if (firstWord == 0xFFFFFFFF)
{
continue;
}
string namFileName = "";
string suffix = i.ToString();
if (nam != null)
{
namFileName = nam.GetName(i);
}
br.BaseStream.Position = 0;
HEDFileEntry entry = new HEDFileEntry(br, namFileName, suffix);
Entries.Add(entry);
}
}
Files = Entries.Select(o => new HEDFileInfo
{
Entry = o,
FileName = String.Format("{0}-{1}{2}", o.Name, o.Suffix, o.Extension),
FileData = new SubStream(mrgStream, o.Offset, o.Size),
State = ArchiveFileState.Archived
}).ToList();
}
}
