protected override void DoOpen()
{
using (CustomBinaryReader reader = new CustomBinaryReader(new FileStream(ArchivePath, FileMode.Open, FileAccess.Read)))
{
uint signature = reader.ReadUInt32();
if (signature != 0x58445442)
{
throw new InvalidDataException("File is not BA2");
}
version = reader.ReadUInt32();
if (version > 1)
{
throw new InvalidDataException("Unsupported archive file version: " + version);
}
type = (ArchiveType)reader.ReadUInt32();
if (type != ArchiveType.General)
{
Log.Fine("Skipping archive file which is not the general purpose type.");
return;
}
long baseOffset = reader.BaseStream.Position;
uint fileCount = reader.ReadUInt32();
long fileNameTableOffset = reader.ReadInt64();
FileInfo[] files = new FileInfo[fileCount];
for (int i = 0; i < fileCount; i++)
{
files[i] = new FileInfo()
{
NameHash = reader.ReadUInt32(),
Type = reader.ReadUInt32(),
DirectoryNameHash = reader.ReadUInt32(),
Unknown1 = reader.ReadUInt32(),
DataOffset = reader.ReadInt64(),
DataCompressedSize = reader.ReadUInt32(),
DataUncompressedSize = reader.ReadUInt32(),
Unknown2 = reader.ReadUInt32()
};
}
reader.BaseStream.Position = fileNameTableOffset;
for (int i = 0; i < fileCount; i++)
{
ushort length = reader.ReadUInt16();
string path = reader.ReadStringFixedLength(length).ToLower();
string dir = Path.GetDirectoryName(path).ToLower();
string filename = Path.GetFileName(path).ToLower();
if (!sorted.ContainsKey(dir))
{
sorted.Add(dir, new SortedDictionary <string, FileInfo>());
}
sorted[dir].Add(filename, files[i]);
}
}
}