public MemoryBlock(uint address, bool isSomething, LBA compressed, LBA filetable, LBA uncompressed)
{
this.address = address;
this.isSomething = isSomething;
this.compressed = compressed;
this.filetable = filetable;
this.uncompressed = uncompressed;
cutscenes = new List <LBA>();
}
public byte[] ExtractBlock(Reader reader, LBA lba, uint baseOffset)
{
byte[] data;
if (lba.lba < baseOffset || lba.size <= 0)
{
return(null);
}
reader.BaseStream.Seek((lba.lba - baseOffset) * 0x800, SeekOrigin.Begin);
data = reader.ReadBytes((int)lba.size);
return(data);
}
public List <byte[]> ExtractPackedBlocks(Reader reader, LBA lba, uint baseOffset)
{
List <byte[]> datas = new List <byte[]>();
byte[] data;
if (lba.lba < baseOffset || lba.size <= 0)
{
return(null);
}
reader.BaseStream.Seek((lba.lba - baseOffset) * 0x800, SeekOrigin.Begin);
data = new byte[0];
uint end = (lba.lba + lba.size - baseOffset) * 0x800;
bool previousWasZero = false;
bool previousWasFF = false;
while (reader.BaseStream.Position < end)
{
uint decompressedSize = reader.ReadUInt32(); // 0x8000
if (previousWasFF)
{
if (decompressedSize == 0xFFFFFFFF && reader.ReadUInt32() == 0)
{
reader.Align(0x800);
previousWasFF = false;
}
else
{
reader.BaseStream.Position = 0x800 * (reader.BaseStream.Position / 0x800);
byte[] uncompressedData = reader.ReadBytes(0x800);
if (uncompressedData != null)
{
int originalDataLength = data.Length;
Array.Resize(ref data, originalDataLength + uncompressedData.Length);
Array.Copy(uncompressedData, 0, data, originalDataLength, uncompressedData.Length);
}
}
}
else
{
if (decompressedSize == 0)
{
if (previousWasZero)
{
reader.Align(0x800);
previousWasZero = false;
break;
}
else
{
previousWasZero = true;
}
previousWasFF = false;
// If previous was zero, then padding to 0x800. If previous was not zero, then new file.
print(decompressedSize + " - " + String.Format("0x{0:X8}", reader.BaseStream.Position));
datas.Add(data);
data = new byte[0];
continue;
}
else if (decompressedSize == 0xFFFFFFFF)
{
if (previousWasZero)
{
reader.Align(0x800);
previousWasFF = true;
}
previousWasZero = false;
continue;
}
else
{
previousWasZero = false;
previousWasFF = false;
}
uint compressedSize = reader.ReadUInt32();
print(decompressedSize + " - " + String.Format("0x{0:X8}", reader.BaseStream.Position));
byte[] uncompressedData = null;
byte[] compressedData = reader.ReadBytes((int)compressedSize);
using (var compressedStream = new MemoryStream(compressedData))
using (var lzo = new LzoStream(compressedStream, CompressionMode.Decompress))
using (Reader lzoReader = new Reader(lzo, Settings.s.IsLittleEndian)) {
lzo.SetLength(decompressedSize);
uncompressedData = lzoReader.ReadBytes((int)decompressedSize);
}
if (uncompressedData != null)
{
int originalDataLength = data.Length;
Array.Resize(ref data, originalDataLength + uncompressedData.Length);
Array.Copy(uncompressedData, 0, data, originalDataLength, uncompressedData.Length);
}
}
}
if (data.Length > 0)
{
datas.Add(data);
}
return(datas);
}