/// <summary>
/// Initializes a new instance of the <see cref="MpqArchive"/> class.
/// </summary>
/// <param name="sourceStream">The <see cref="Stream"/> from which to load an <see cref="MpqArchive"/>.</param>
/// <param name="loadListfile">If true, automatically execute <see cref="AddListfileFilenames()"/> after the <see cref="MpqArchive"/> is initialized.</param>
/// <exception cref="ArgumentNullException">Thrown when the <paramref name="sourceStream"/> is null.</exception>
/// <exception cref="MpqParserException">Thrown when the <see cref="MpqHeader"/> could not be found, or when the MPQ format version is not 0.</exception>
public MpqArchive(Stream sourceStream, bool loadListfile = false)
{
_baseStream = sourceStream ?? throw new ArgumentNullException(nameof(sourceStream));
if (!TryLocateMpqHeader(_baseStream, out var mpqHeader, out _headerOffset))
{
throw new MpqParserException("Unable to locate MPQ header.");
}
_mpqHeader = mpqHeader;
_blockSize = BlockSizeModifier << _mpqHeader.BlockSize;
_archiveFollowsHeader = _mpqHeader.IsArchiveAfterHeader();
if (_mpqHeader.MpqVersion != 0)
{
throw new MpqParserException($"MPQ format version {_mpqHeader.MpqVersion} is not supported");
}
using (var reader = new BinaryReader(_baseStream, new UTF8Encoding(), true))
{
// Load hash table
_baseStream.Seek(_mpqHeader.HashTablePosition, SeekOrigin.Begin);
_hashTable = new HashTable(reader, _mpqHeader.HashTableSize);
// Load entry table
_baseStream.Seek(_mpqHeader.BlockTablePosition, SeekOrigin.Begin);
_blockTable = new BlockTable(reader, _mpqHeader.BlockTableSize, (uint)_headerOffset);
}
if (loadListfile)
{
AddListfileFilenames();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MpqArchive"/> class.
/// </summary>
/// <param name="sourceStream">The <see cref="Stream"/> from which to load an <see cref="MpqArchive"/>.</param>
/// <param name="loadListFile">If <see langword="true"/>, automatically add filenames from the <see cref="MpqArchive"/>'s <see cref="ListFile"/> after the archive is initialized.</param>
/// <exception cref="ArgumentNullException">Thrown when the <paramref name="sourceStream"/> is <see langword="null"/>.</exception>
/// <exception cref="MpqParserException">Thrown when the <see cref="MpqHeader"/> could not be found, or when the MPQ format version is not 0.</exception>
public MpqArchive(Stream sourceStream, bool loadListFile = false)
{
_isStreamOwner = true;
_baseStream = sourceStream ?? throw new ArgumentNullException(nameof(sourceStream));
if (!TryLocateMpqHeader(_baseStream, out var mpqHeader, out _headerOffset))
{
throw new MpqParserException("Unable to locate MPQ header.");
}
_mpqHeader = mpqHeader;
_blockSize = BlockSizeModifier << _mpqHeader.BlockSize;
_archiveFollowsHeader = _mpqHeader.IsArchiveAfterHeader();
using (var reader = new BinaryReader(_baseStream, new UTF8Encoding(), true))
{
// Load hash table
_baseStream.Seek(_mpqHeader.HashTablePosition, SeekOrigin.Begin);
_hashTable = new HashTable(reader, _mpqHeader.HashTableSize);
// Load entry table
_baseStream.Seek(_mpqHeader.BlockTablePosition, SeekOrigin.Begin);
_blockTable = new BlockTable(reader, _mpqHeader.BlockTableSize, (uint)_headerOffset);
}
if (loadListFile)
{
if (TryOpenFile(ListFile.FileName, out var listFileStream))
{
using var listFileReader = new StreamReader(listFileStream, leaveOpen: false);
AddFileNames(listFileReader.ReadListFile().FileNames);
}
}
}
