public static MpqHeader FromReader(BinaryReader br)
{
uint id = br.ReadUInt32();
if (id != MpqId)
{
return(null);
}
MpqHeader header = new MpqHeader
{
ID = id,
DataOffset = br.ReadUInt32(),
ArchiveSize = br.ReadUInt32(),
MpqVersion = br.ReadUInt16(),
BlockSize = br.ReadUInt16(),
HashTablePos = br.ReadUInt32(),
BlockTablePos = br.ReadUInt32(),
HashTableSize = br.ReadUInt32(),
BlockTableSize = br.ReadUInt32(),
};
if (header.MpqVersion == 1)
{
header.ExtendedBlockTableOffset = br.ReadInt64();
header.HashTableOffsetHigh = br.ReadInt16();
header.BlockTableOffsetHigh = br.ReadInt16();
}
return(header);
}
private bool LocateMpqHeader()
{
BinaryReader br = new BinaryReader(mStream);
// In .mpq files the header will be at the start of the file
// In .exe files, it will be at a multiple of 0x200
for (long i = 0; i < mStream.Length - MpqHeader.Size; i += 0x200)
{
mStream.Seek(i, SeekOrigin.Begin);
mHeader = new MpqHeader(br);
if (mHeader.ID == MpqHeader.MpqId)
{
mHeaderOffset = i;
mHeader.HashTablePos += (uint)mHeaderOffset;
mHeader.BlockTablePos += (uint)mHeaderOffset;
if (mHeader.DataOffset == 0x6d9e4b86)
{
// then this is a protected archive
mHeader.DataOffset = (uint)(MpqHeader.Size + i);
}
return(true);
}
}
return(false);
}
private bool LocateMpqHeader()
{
BinaryReader br = new BinaryReader(BaseStream);
// In .mpq files the header will be at the start of the file
// In .exe files, it will be at a multiple of 0x200
for (long i = 0; i < BaseStream.Length - MpqHeader.Size; i += 0x200)
{
BaseStream.Seek(i, SeekOrigin.Begin);
_mpqHeader = MpqHeader.FromReader(br);
if (_mpqHeader != null)
{
_headerOffset = i;
_mpqHeader.SetHeaderOffset(_headerOffset);
return(true);
}
}
return(false);
}