public const int ItemSize = (1 + 8 + 4 + 4) + 1; // 1 more than length of fields
internal MultiStreamItemHeader(QQnBinaryReader reader)
{
byte version = reader.ReadByte();
if (version == 1)
{
_offset = reader.ReadInt64();
_length = reader.ReadUInt32(); // As uint
_itemType = reader.ReadInt32();
}
else if (version == 2)
{
// Define some format which allows +4GB substream
// When this is used we will need some more padding space; but it probably will never be written anyway
// At least we can read them with this version
_offset = reader.ReadInt64();
_length = reader.ReadInt64(); // As long
_itemType = reader.ReadInt32();
}
else
{
throw new InvalidOperationException();
}
}