/// <summary>
/// Returns an entry in this archive as a Stream instance.
/// Throws a DBPFException if entry was not found.
/// </summary>
/// <param name="ID">ID of the entry to grab from archive.</param>
/// <returns>The entry's data as a Stream instance.</returns>
public Stream GrabEntry(UniqueFileID ID)
{
m_FinishedReading.WaitOne();
if (!ContainsEntry(ID))
{
throw new DBPFException("Couldn't find entry - DBPFArchive.cs!");
}
DBPFEntry Entry = m_Entries[ID];
m_Reader.Seek(Entry.FileOffset);
MemoryStream Data = new MemoryStream(m_Reader.ReadBytes((int)Entry.FileSize));
Data.Position = 0;
return(Data);
}
/// <summary>
/// Reads all entries in this archive into memory.
/// </summary>
/// <param name="ThrowException">Wether or not to throw an exception if the archive was not a DBPF. If false, function will return.</param>
public bool ReadArchive(bool ThrowException)
{
m_FinishedReading.Reset();
if (m_Reader == null)
{
try
{
m_Reader = new FileReader(m_Path, false);
}
//This will be thrown because of file access privileges or because an archive is being tentatively opened twice.
catch (Exception)
{
if (ThrowException)
{
throw;
}
else
{
return(false);
}
}
}
lock (m_Reader)
{
ASCIIEncoding Enc = new ASCIIEncoding();
string MagicNumber = Enc.GetString(m_Reader.ReadBytes(4));
if (!MagicNumber.Equals("DBPF", StringComparison.InvariantCultureIgnoreCase))
{
if (ThrowException)
{
throw new DBPFException("MagicNumber was wrong - DBPFArchive.cs!");
}
else
{
m_Reader.Close();
return(false);
}
}
m_Reader.ReadUInt32(); //MajorVersion
m_Reader.ReadUInt32(); //MinorVersion
m_Reader.ReadBytes(12); //Reserved.
m_Reader.ReadBytes(4); //Date created.
m_Reader.ReadBytes(4); //Date modified.
m_Reader.ReadUInt32(); //Index major version.
IndexEntryCount = m_Reader.ReadUInt32();
IndexOffset = m_Reader.ReadUInt32();
IndexSize = m_Reader.ReadUInt32();
m_Reader.Seek(IndexOffset);
for (int i = 0; i < IndexEntryCount; i++)
{
DBPFEntry Entry = new DBPFEntry();
Entry.TypeID = m_Reader.ReadUInt32();
Entry.GroupID = m_Reader.ReadUInt32();
Entry.InstanceID = m_Reader.ReadUInt32();
Entry.FileOffset = m_Reader.ReadUInt32();
Entry.FileSize = m_Reader.ReadUInt32();
UniqueFileID ID = new UniqueFileID(Entry.TypeID, Entry.InstanceID, Entry.GroupID);
Entry.EntryID = ID;
m_Entries.Add(ID, Entry);
}
}
m_FinishedReading.Set();
return(true);
}
/// <summary>
/// Reads all entries in this archive into memory.
/// </summary>
/// <param name="ThrowException">Wether or not to throw an exception if the archive was not a DBPF. If false, function will return.</param>
public bool ReadArchive(bool ThrowException)
{
m_FinishedReading.Reset();
if (m_Reader == null)
{
try
{
m_Reader = new FileReader(m_Path, false);
}
//This will be thrown because of file access privileges or because an archive is being tentatively opened twice.
catch (Exception)
{
if (ThrowException)
throw;
else
return false;
}
}
lock (m_Reader)
{
ASCIIEncoding Enc = new ASCIIEncoding();
string MagicNumber = Enc.GetString(m_Reader.ReadBytes(4));
if (!MagicNumber.Equals("DBPF", StringComparison.InvariantCultureIgnoreCase))
{
if (ThrowException)
throw new DBPFException("MagicNumber was wrong - DBPFArchive.cs!");
else
{
m_Reader.Close();
return false;
}
}
m_Reader.ReadUInt32(); //MajorVersion
m_Reader.ReadUInt32(); //MinorVersion
m_Reader.ReadBytes(12); //Reserved.
m_Reader.ReadBytes(4); //Date created.
m_Reader.ReadBytes(4); //Date modified.
m_Reader.ReadUInt32(); //Index major version.
IndexEntryCount = m_Reader.ReadUInt32();
IndexOffset = m_Reader.ReadUInt32();
IndexSize = m_Reader.ReadUInt32();
m_Reader.Seek(IndexOffset);
for(int i = 0; i < IndexEntryCount; i++)
{
DBPFEntry Entry = new DBPFEntry();
Entry.TypeID = m_Reader.ReadUInt32();
Entry.GroupID = m_Reader.ReadUInt32();
Entry.InstanceID = m_Reader.ReadUInt32();
Entry.FileOffset = m_Reader.ReadUInt32();
Entry.FileSize = m_Reader.ReadUInt32();
UniqueFileID ID = new UniqueFileID(Entry.TypeID, Entry.InstanceID, Entry.GroupID);
Entry.EntryID = ID;
m_Entries.Add(ID, Entry);
}
}
m_FinishedReading.Set();
return true;
}
