private NblChunk loadGroup(Stream fileToLoad, BinaryReader fileLoader)
{
NblChunk toRet = new NblChunk();
toRet.bigEndian = isBigEndian;
long offset = fileToLoad.Position;
string formatName = new String(fileLoader.ReadChars(4));
ushort fileVersion = fileLoader.ReadUInt16();
int paddingAmount = fileVersion == 0x1002 ? 0x3F : 0x7FF;
uint mask = fileVersion == 0x1002 ? 0xFFFFFFC0 : 0xFFFFF800;
ushort chunkFilenameLength = fileLoader.ReadUInt16();
int headerSize = fileLoader.ReadInt32();
int numFiles = fileLoader.ReadInt32();
uint uncompressedSize = fileLoader.ReadUInt32();
uint compressedSize = fileLoader.ReadUInt32();
uint pointerLength = fileLoader.ReadUInt32() / 4;
if (formatName.StartsWith("NML"))
{
decryptKey = fileLoader.ReadUInt32();
}
else
{
fileLoader.ReadUInt32();
}
uint size = compressedSize == 0 ? uncompressedSize : compressedSize;
uint nmllDataLoc = (uint)((headerSize + paddingAmount) & mask);
uint pointerLoc = (uint)(nmllDataLoc + size + paddingAmount) & mask;
uint mainHeaderSize = 0x20;
if (formatName.StartsWith("NML"))
{
mainHeaderSize = 0x30;
uint tmllHeaderSize = fileLoader.ReadUInt32();
uint tmllDataSizeUncomp = fileLoader.ReadUInt32();
uint tmllDataSizeComp = fileLoader.ReadUInt32();
uint tmllCount = fileLoader.ReadUInt32();
if (tmllCount > 0)
{
tmllHeaderLoc = (uint)(pointerLoc + pointerLength * 4 + paddingAmount) & mask;
}
}
decryptor = new BlewFish(decryptKey, isBigEndian);
FileHeader[] groupHeaders = new FileHeader[numFiles];
for (int i = 0; i < numFiles; i++)
{
fileToLoad.Seek(mainHeaderSize + 0x60 * i + offset, SeekOrigin.Begin);
FileHeader currentHeader = readHeader(fileLoader.ReadBytes(0x60));
groupHeaders[i] = currentHeader;
}
fileToLoad.Seek(nmllDataLoc + offset, SeekOrigin.Begin);
int encryptedSectionSize;
if (fileVersion == 0x1002)
{
//Obfuscation stuff from sega.
int rawEncryptedSectionSize = (int)((((compressedSize >> 0xB) ^ compressedSize) & 0xE0) + 0x20);
encryptedSectionSize = Math.Min(rawEncryptedSectionSize, (int)compressedSize);
}
else
{
encryptedSectionSize = (int)size;
}
if (encryptedSectionSize % 8 != 0)
{
encryptedSectionSize -= (encryptedSectionSize % 8);
}
byte[] decryptedFiles;
if (decryptKey != 0 && formatName.StartsWith("NML"))
{
byte[] encryptedFiles = fileLoader.ReadBytes((int)size);
decryptedFiles = decryptor.decryptBlock(encryptedFiles, encryptedSectionSize);
}
else
{
decryptedFiles = fileLoader.ReadBytes((int)size + 7);
}
if (compressedSize != 0)
{
if (fileVersion == 0x1002)
{
DeflateStream ds = new DeflateStream(new MemoryStream(decryptedFiles), CompressionMode.Decompress);
MemoryStream decompressedStream = new MemoryStream((int)uncompressedSize);
ds.CopyTo(decompressedStream);
decompressedFiles = decompressedStream.ToArray();
}
else
{
decompressedFiles = PrsCompDecomp.Decompress(decryptedFiles, uncompressedSize);
}
}
else
{
decompressedFiles = decryptedFiles;
}
List <int> pointers = new List <int>((int)pointerLength);
if (pointerLength > 0)
{
fileToLoad.Seek(pointerLoc + offset, SeekOrigin.Begin);
for (int i = 0; i < pointerLength; i++)
{
pointers.Add(fileLoader.ReadInt32());
}
}
List <RawFile> files = new List <RawFile>(numFiles);
for (int i = 0; i < numFiles; i++)
{
RawFile tempFile = new RawFile();
tempFile.filename = groupHeaders[i].fileName;
tempFile.subHeader = groupHeaders[i].subHeader;
tempFile.chunkSize = groupHeaders[i].chunkSize;
tempFile.fileOffset = groupHeaders[i].filePosition;
tempFile.fileContents = new byte[groupHeaders[i].fileSize];
Array.Copy(decompressedFiles, groupHeaders[i].filePosition, tempFile.fileContents, 0, groupHeaders[i].fileSize);
if (tempFile.fileContents.Length > 0)
{
tempFile.fileheader = new String(ASCIIEncoding.ASCII.GetChars(tempFile.fileContents, 0, 4));
}
if (groupHeaders[i].pointerSize > 0)
{
tempFile.pointers = pointers.GetRange((int)groupHeaders[i].pointerPosition / 4, (int)groupHeaders[i].pointerSize / 4);
}
files.Add(tempFile);
}
toRet.encryptionKey = decryptKey;
toRet.encrypted = decryptKey != 0;
toRet.compressed = compressedSize != 0;
toRet.chunkID = formatName;
toRet.versionNumber = (short)fileVersion;
toRet.fileContents = files;
return(toRet);
}
public ScriptFile(string inFilename, byte[] rawData, bool bigEndian = false)
{
filename = inFilename;
int inFilesize, outFilesize;
if (!bigEndian)
{
outFilesize = BitConverter.ToInt32(rawData, 0);
inFilesize = BitConverter.ToInt32(rawData, 4);
}
else
{
byte[] outFilesizeBytes = new byte[] { rawData[3], rawData[2], rawData[1], rawData[0] };
byte[] inFilesizeBytes = new byte[] { rawData[7], rawData[6], rawData[5], rawData[4] };
if (BitConverter.ToUInt32(inFilesizeBytes, 0) > rawData.Length)
{
//Stupid hack to try to fix tobitama
outFilesize = BitConverter.ToInt32(outFilesizeBytes.Reverse().ToArray(), 0);
inFilesize = BitConverter.ToInt32(inFilesizeBytes.Reverse().ToArray(), 0);
}
else
{
outFilesize = BitConverter.ToInt32(outFilesizeBytes, 0);
inFilesize = BitConverter.ToInt32(inFilesizeBytes, 0);
}
}
byte[] temp = new byte[inFilesize];
Array.Copy(rawData, 0x1C, temp, 0, inFilesize);
byte[] decompressed = PrsCompDecomp.Decompress(temp, (uint)outFilesize);
MemoryStream scriptStream = new MemoryStream(decompressed);
BinaryReader scriptReader;
if (bigEndian)
{
scriptReader = new BigEndianBinaryReader(scriptStream);
}
else
{
scriptReader = new BinaryReader(scriptStream);
}
scriptStream.Seek(4, SeekOrigin.Begin);
int stringListPtr = scriptReader.ReadInt32();
int stringListLength = scriptReader.ReadInt32();
scriptStream.Seek(stringListPtr + 0xC, SeekOrigin.Begin);
stringNames = new string[stringListLength / 0x20];
for (int i = 0; i < stringNames.Length; i++)
{
stringNames[i] = ASCIIEncoding.UTF8.GetString(scriptReader.ReadBytes(0x20));
stringNames[i] = stringNames[i].TrimEnd('\0');
}
scriptStream.Seek(0xC, SeekOrigin.Begin);
//ArrayList subroutines = new ArrayList();
while (scriptStream.Position < stringListPtr)
{
int nextSubLoc = scriptReader.ReadInt32() + 0xC;
string subroutineName = ASCIIEncoding.UTF8.GetString(scriptReader.ReadBytes(0x20)).TrimEnd('\0');
int subLength = scriptReader.ReadInt32();
int subType = scriptReader.ReadLittleEndianInt32();
int locals = scriptReader.ReadInt32();
int currLoc = (int)scriptStream.Position;
int subEnd = currLoc + subLength;
scriptStream.Seek(subLength, SeekOrigin.Current);
int[] localNums = new int[locals];
int[] localLocs = new int[locals];
if (subType == 0x4C)
{
for (int i = 0; i < locals; i++)
{
localNums[i] = scriptReader.ReadInt32();
localLocs[i] = scriptReader.ReadInt32() * 4;
}
}
List <operation> operations = new List <operation>();
List <int> opcodeLocs = new List <int>();
scriptStream.Seek(currLoc, SeekOrigin.Begin);
while (scriptStream.Position < subEnd)
{
opcodeLocs.Add((int)(scriptStream.Position - currLoc));
int currOpcode = scriptReader.ReadInt32();
operation tempOp = new operation();
if (opcodeTypes[currOpcode] == 3)
{
tempOp.floatArg = scriptReader.ReadSingle();
}
else if (opcodeTypes[currOpcode] > 1 && opcodeTypes[currOpcode] != 4 && !localLocs.Contains((int)(scriptStream.Position - currLoc)))
{
tempOp.intArg = scriptReader.ReadInt32();
}
else if (localLocs.Contains((int)(scriptStream.Position - currLoc)))
{
tempOp.strArg = stringNames[localNums[Array.IndexOf(localLocs, (int)(scriptStream.Position - currLoc))]];
tempOp.intArg = scriptReader.ReadInt32();
}
if (opcodeTypes[currOpcode] == 99)
{
tempOp.strArg = ASCIIEncoding.GetEncoding("shift-jis").GetString(scriptReader.ReadBytes(tempOp.intArg * 4)).TrimEnd('\0');
}
tempOp.opcode = currOpcode;
operations.Add(tempOp);
}
for (int i = 0; i < operations.Count; i++)
{
if (((operation)operations[i]).opcode > 0x2B && ((operation)operations[i]).opcode < 0x2F)
{
int branchSource = opcodeLocs[i] + 0x8;
int branchDestRaw = branchSource + 4 * ((operation)operations[i]).intArg;
for (int j = 0; j < operations.Count; j++)
{
if (branchDestRaw == opcodeLocs[j])
{
((operation)operations[i]).intArg = j;
break;
}
}
}
}
subroutine tempSub = new subroutine();
tempSub.name = subroutineName;
tempSub.subType = subType;
if (subType != 0x4C)
{
tempSub.miscData = locals;
}
else
{
tempSub.miscData = -1;
}
tempSub.opcodes = operations;
subroutines.Add(tempSub);
if (nextSubLoc == 0xC)
{
break;
}
scriptStream.Seek(nextSubLoc, SeekOrigin.Begin);
}
scriptReader.Close();
}
private void decryptNMLBToolStripMenuItem_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
byte[] fileContents = File.ReadAllBytes(openFileDialog1.FileName);
MemoryStream fileStream = new MemoryStream(fileContents);
fileStream.Seek(3, SeekOrigin.Begin);
byte endian = (byte)fileStream.ReadByte();
fileStream.Seek(0, SeekOrigin.Begin);
BinaryReader fileLoader;
bool bigEndian = false;
if (endian == 0x42)
{
fileLoader = new BigEndianBinaryReader(fileStream);
bigEndian = true;
}
else
{
fileLoader = new BinaryReader(fileStream);
}
string formatName = new String(fileLoader.ReadChars(4));
ushort fileVersion = fileLoader.ReadUInt16();
ushort chunkFilenameLength = fileLoader.ReadUInt16();
uint headerSize = fileLoader.ReadUInt32();
uint nmllCount = fileLoader.ReadUInt32();
uint uncompressedSize = fileLoader.ReadUInt32();
uint compressedSize = fileLoader.ReadUInt32();
uint pointerLength = fileLoader.ReadUInt32() / 4;
uint blowfishKey = fileLoader.ReadUInt32();
uint tmllHeaderSize = fileLoader.ReadUInt32();
uint tmllDataSizeUncomp = fileLoader.ReadUInt32();
uint tmllDataSizeComp = fileLoader.ReadUInt32();
uint tmllCount = fileLoader.ReadUInt32();
uint tmllHeaderLoc = 0;
uint pointerLoc = 0;
uint size = compressedSize == 0 ? uncompressedSize : compressedSize;
uint nmllDataLoc = (uint)((headerSize + 0x7FF) & 0xFFFFF800);
pointerLoc = (uint)(nmllDataLoc + size + 0x7FF) & 0xFFFFF800;
if (tmllCount > 0)
{
tmllHeaderLoc = (pointerLoc + pointerLength * 4 + 0x7FF) & 0xFFFFF800;
}
BlewFish fish = new BlewFish(blowfishKey, bigEndian);
for (int i = 0; i < nmllCount; i++)
{
int headerLoc = 0x40 + i * 0x60;
byte[] toDecrypt = new byte[0x30];
Array.Copy(fileContents, headerLoc, toDecrypt, 0, 0x30);
toDecrypt = fish.decryptBlock(toDecrypt);
Array.Copy(toDecrypt, 0, fileContents, headerLoc, 0x30);
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < tmllCount; i++)
{
uint headerLoc = (uint)(tmllHeaderLoc + 0x30 + i * 0x60);
byte[] toDecrypt = new byte[0x30];
Array.Copy(fileContents, headerLoc, toDecrypt, 0, 0x30);
toDecrypt = fish.decryptBlock(toDecrypt);
Array.Copy(toDecrypt, 0, fileContents, headerLoc, 0x30);
sb.Append(ASCIIEncoding.ASCII.GetString(toDecrypt, 0, 0x20).Split('\0')[0] + "\t");
//sb.Append(BitConverter.ToUInt16(fileContents, (int)(headerLoc + 0x4C)) + "\t");
//sb.Append(BitConverter.ToUInt16(fileContents, (int)(headerLoc + 0x4E)) + "\n");
}
fileStream.Seek(nmllDataLoc, SeekOrigin.Begin);
byte[] encryptedNmll = fileLoader.ReadBytes((int)size);
byte[] decryptedNmll = fish.decryptBlock(encryptedNmll);
byte[] decompressedNmll = compressedSize != 0 ? PrsCompDecomp.Decompress(decryptedNmll, uncompressedSize) : decryptedNmll;
File.WriteAllText(openFileDialog1.FileName + ".tml.list", sb.ToString());
File.WriteAllBytes(openFileDialog1.FileName + ".decrypt", fileContents);
File.WriteAllBytes(openFileDialog1.FileName + ".encryptNmll", encryptedNmll);
File.WriteAllBytes(openFileDialog1.FileName + ".decryptNmll", decryptedNmll);
File.WriteAllBytes(openFileDialog1.FileName + ".decompressNmll", decompressedNmll);
}
}