/// <summary>
/// Initializes a new instance of the <see cref="MpqHeroesArchive"/> class.
/// </summary>
/// <param name="stream">The stream containing the archive to be read.</param>
/// <exception cref="ArgumentNullException" />
internal MpqHeroesArchive(Stream stream)
{
_archiveStream = stream ?? throw new ArgumentNullException(nameof(stream));
Span <byte> headerBuffer = stackalloc byte[2048]; // guess how much the header will be
stream.Read(headerBuffer);
BitReader bitReader = new BitReader(headerBuffer, EndianType.LittleEndian);
_mpqHeader = new MpqHeader(ref bitReader);
if (_mpqHeader.HashTableOffsetHigh != 0 || _mpqHeader.ExtendedBlockTableOffset != 0 || _mpqHeader.BlockTableOffsetHigh != 0)
{
throw new MpqHeroesToolException("MPQ format version 1 features are not supported");
}
_blockSize = 0x200 << _mpqHeader.BlockSize;
// LoadHashTable
Span <byte> hashBuffer = stackalloc byte[(int)(_mpqHeader.HashTableSize * MpqHash.Size)]; // get the hash table buffer
stream.Position = (int)_mpqHeader.HashTablePos;
stream.Read(hashBuffer);
DecryptTable(hashBuffer, "(hash table)");
_mpqHashes = new MpqHash[_mpqHeader.HashTableSize];
BitReader mpqHashesBitReader = new BitReader(hashBuffer, EndianType.LittleEndian);
for (int i = 0; i < _mpqHeader.HashTableSize; i++)
{
_mpqHashes[i] = new MpqHash(ref mpqHashesBitReader);
}
// LoadEntryTable;
Span <byte> entryBuffer = stackalloc byte[(int)(_mpqHeader.BlockTableSize * MpqHeroesArchiveEntry.Size)]; // get the entry table buffer
stream.Position = (int)_mpqHeader.BlockTablePos;
stream.Read(entryBuffer);
DecryptTable(entryBuffer, "(block table)");
_mpqArchiveEntries = new MpqHeroesArchiveEntry[_mpqHeader.BlockTableSize];
BitReader mpqArchivesEntryBitReader = new BitReader(entryBuffer, EndianType.LittleEndian);
for (int i = 0; i < _mpqHeader.BlockTableSize; i++)
{
_mpqArchiveEntries[i] = new MpqHeroesArchiveEntry(ref mpqArchivesEntryBitReader, (uint)_mpqHeader.HeaderOffset);
}
}
private void ParseReplayServerBattlelobby(StormReplay stormReplay, ArrayPool <byte> pool)
{
MpqHeroesArchiveEntry entry = _stormMpqArchive.GetEntry(ReplayServerBattlelobby.FileName);
int size = (int)entry.FileSize;
byte[] poolBuffer = pool.Rent(size);
Span <byte> buffer = new Span <byte>(poolBuffer).Slice(0, size);
_stormMpqArchive.DecompressEntry(entry, buffer);
ReplayServerBattlelobby.Parse(stormReplay, buffer);
pool.Return(poolBuffer);
}
public MpqHeroesArchiveEntry GetEntry(string fileName)
{
if (!TryGetHashEntry(fileName, out MpqHash hash))
{
throw new FileNotFoundException("File not found: " + fileName);
}
MpqHeroesArchiveEntry entry = _mpqArchiveEntries[hash.BlockIndex];
if (entry.FileName == null)
{
entry.FileName = fileName;
}
return(entry);
}
public bool AddListfileFileNames()
{
if (!AddFileName("(listfile)"))
{
return(false);
}
MpqHeroesArchiveEntry entry = GetEntry("(listfile)");
Span <byte> buffer = stackalloc byte[(int)entry.FileSize];
DecompressEntry(entry, buffer);
AddFileNames(buffer);
return(true);
}
public ReadOnlySpan <byte> OpenFile(string filename)
{
if (!TryGetHashEntry(filename, out MpqHash hash))
{
throw new FileNotFoundException("File not found: " + filename);
}
MpqHeroesArchiveEntry entry = _mpqArchiveEntries[hash.BlockIndex];
if (entry.FileName == null)
{
entry.FileName = filename;
}
Span <byte> buffer = new byte[(int)entry.FileSize];
DecompressEntry(entry, buffer);
return(buffer);
}
