private static CpkColumnInfo ReadColumn(BinaryReaderX tableBr, BinaryReaderX stringBr, BinaryReaderX dataBr)
{
// Read column info
var flags = tableBr.ReadByte();
var nameOffset = tableBr.ReadInt32();
// Resolve final information
var name = CpkSupport.ReadString(stringBr, nameOffset);
var storage = (CpkColumnStorage)(flags >> 4);
var type = (CpkDataType)(flags & 0xF);
switch (storage)
{
case CpkColumnStorage.Const:
return(CpkColumnInfo.CreateConst(name, CpkValue.Read(type, tableBr, stringBr, dataBr)));
case CpkColumnStorage.Default:
return(CpkColumnInfo.CreateZero(name, type));
case CpkColumnStorage.Row:
return(CpkColumnInfo.CreateRow(name, type));
default:
throw new InvalidOperationException($"Unknown storage type '{storage}'.");
}
}
public static CpkTable Create(Stream utfStream, string tableMagic)
{
// Read table info
using var utfBr = new BinaryReaderX(utfStream, ByteOrder.BigEndian);
var tableInfo = utfBr.ReadType <CpkTableInfo>();
// Create readers
var tableStream = new SubStream(utfStream, 0x8, tableInfo.tableSize);
var stringStream = new SubStream(tableStream, tableInfo.stringsOffset,
tableInfo.binaryOffset - tableInfo.stringsOffset);
var dataStream = new SubStream(tableStream, tableInfo.binaryOffset,
tableInfo.tableSize - tableInfo.binaryOffset);
using var tableBr = new BinaryReaderX(tableStream, ByteOrder.BigEndian);
using var stringBr = new BinaryReaderX(stringStream, ByteOrder.BigEndian);
using var dataBr = new BinaryReaderX(dataStream, ByteOrder.BigEndian);
// Read table name
var name = CpkSupport.ReadString(stringBr, tableInfo.nameOffset);
// Read columns
tableStream.Position = 0x18;
var columns = new CpkColumnInfo[tableInfo.columnCount];
for (var i = 0; i < tableInfo.columnCount; i++)
{
columns[i] = ReadColumn(tableBr, stringBr, dataBr);
}
// Read rows
tableStream.Position = tableInfo.valuesOffset;
var rows = new CpkRow[tableInfo.rowCount];
for (var i = 0; i < tableInfo.rowCount; i++)
{
rows[i] = ReadRow(tableBr, stringBr, dataBr, columns);
}
return(new CpkTable(tableMagic, name, rows));
}
