private void ValidateFragmentCoverage()
{
// apparently gaps are okay, there isn't a 100% way to find out if parsing errors have snuck through
int bitCursor = 0;
int expectedLengthInBits = DumpSize * 8;
List <VCFragment> fragments = new List <VCFragment>(VCFragments);
List <int> bitGapPositions = new List <int>();
while (fragments.Count > 0)
{
VCFragment result = fragments.Find(x => x.ByteBitPos == bitCursor);
if (result is null)
{
bitGapPositions.Add(bitCursor);
bitCursor++;
if (bitCursor > expectedLengthInBits)
{
throw new Exception("wtf");
}
}
else
{
bitCursor += result.BitLength;
fragments.Remove(result);
}
}
}
public VCSubfragment(BinaryReader reader, VCFragment parentFragment, CTFLanguage language, long baseAddress)
{
// see DIOpenCBF_FragValHandle
reader.BaseStream.Seek(baseAddress, SeekOrigin.Begin);
ulong bitflags = reader.ReadUInt16();
Name_CTF = CaesarReader.ReadBitflagInt32(ref bitflags, reader, -1);
if (parentFragment.CCFHandle == 5)
{
// fragment should be parsed as PBSGetDumpAsStringFn, though internally we perceive this as the same
}
Dump = CaesarReader.ReadBitflagDumpWithReader(ref bitflags, reader, parentFragment.VarcodeDumpSize, baseAddress);
Description_CTF = CaesarReader.ReadBitflagInt32(ref bitflags, reader, -1);
QualifierUsuallyDisabled = CaesarReader.ReadBitflagStringWithReader(ref bitflags, reader, baseAddress);
Unk3 = CaesarReader.ReadBitflagInt32(ref bitflags, reader, -1);
Unk4 = CaesarReader.ReadBitflagInt16(ref bitflags, reader, -1);
SupplementKey = CaesarReader.ReadBitflagStringWithReader(ref bitflags, reader, baseAddress);
NameCTFResolved = language.GetString(Description_CTF);
//int subfragmentIdk2 = reader.ReadInt32();
//int subfragmentName = reader.ReadInt32();
//int subfragmentIdkIncremented = reader.ReadInt32();
//Console.WriteLine($"Subfragment: {subfragmentIdk1:X} {subfragmentIdk2:X} {language.GetString(subfragmentName)} {subfragmentIdkIncremented:X}");
//PrintDebug();
}
public VCDomain(BinaryReader reader, ECU parentEcu, CTFLanguage language, int variantCodingDomainEntry)
{
ParentECU = parentEcu;
byte[] variantCodingPool = parentEcu.ReadVarcodingPool(reader);
using (BinaryReader poolReader = new BinaryReader(new MemoryStream(variantCodingPool)))
{
poolReader.BaseStream.Seek(variantCodingDomainEntry * parentEcu.VcDomain_EntrySize, SeekOrigin.Begin);
int entryOffset = poolReader.ReadInt32();
int entrySize = poolReader.ReadInt32();
uint entryCrc = poolReader.ReadUInt32();
long vcdBlockAddress = entryOffset + parentEcu.VcDomain_BlockOffset;
// Console.WriteLine($"VCD Entry @ 0x{entryOffset:X} with size 0x{entrySize:X} and CRC {entryCrc:X8}, abs addr {vcdBlockAddress:X8}");
long baseAddress = vcdBlockAddress;
reader.BaseStream.Seek(baseAddress, SeekOrigin.Begin);
ulong bitflags = reader.ReadUInt16();
Qualifier = CaesarReader.ReadBitflagStringWithReader(ref bitflags, reader, baseAddress);
Name_CTF = CaesarReader.ReadBitflagInt32(ref bitflags, reader, -1);
Description_CTF = CaesarReader.ReadBitflagInt32(ref bitflags, reader, -1);
ReadServiceName = CaesarReader.ReadBitflagStringWithReader(ref bitflags, reader, baseAddress);
WriteServiceName = CaesarReader.ReadBitflagStringWithReader(ref bitflags, reader, baseAddress);
FragmentCount = CaesarReader.ReadBitflagInt32(ref bitflags, reader);
FragmentTableOffset = CaesarReader.ReadBitflagInt32(ref bitflags, reader) + (int)baseAddress; // demoting long (warning)
DumpSize = CaesarReader.ReadBitflagInt32(ref bitflags, reader);
DefaultStringCount = CaesarReader.ReadBitflagInt32(ref bitflags, reader);
StringTableOffset = CaesarReader.ReadBitflagInt32(ref bitflags, reader);
Unk1 = CaesarReader.ReadBitflagInt16(ref bitflags, reader);
// PrintDebug();
VCFragments = new List <VCFragment>();
for (int fragmentIndex = 0; fragmentIndex < FragmentCount; fragmentIndex++)
{
VCFragment fragment = new VCFragment(reader, this, FragmentTableOffset, fragmentIndex, language);
VCFragments.Add(fragment);
}
// ValidateFragmentCoverage();
if (DefaultStringCount > 0)
{
DefaultData = new List <Tuple <string, byte[]> >();
long stringTableBaseAddress = StringTableOffset + baseAddress;
// this could almost be a class of its own but there isn't a distinct name to it
for (int stringTableIndex = 0; stringTableIndex < DefaultStringCount; stringTableIndex++)
{
reader.BaseStream.Seek(stringTableBaseAddress + (4 * stringTableIndex), SeekOrigin.Begin);
int offset = reader.ReadInt32();
long stringBaseAddress = stringTableBaseAddress + offset;
reader.BaseStream.Seek(stringBaseAddress, SeekOrigin.Begin);
ulong strBitflags = reader.ReadUInt16();
int nameUsuallyAbsent_T = CaesarReader.ReadBitflagInt32(ref strBitflags, reader, -1);
int offsetToBlob = CaesarReader.ReadBitflagInt32(ref strBitflags, reader);
int blobSize = CaesarReader.ReadBitflagInt32(ref strBitflags, reader);
int valueType_T = CaesarReader.ReadBitflagInt32(ref strBitflags, reader, -1);
string noIdeaStr1 = CaesarReader.ReadBitflagStringWithReader(ref strBitflags, reader, stringBaseAddress);
int noIdea2_T = CaesarReader.ReadBitflagInt32(ref strBitflags, reader, -1);
int noIdea3 = CaesarReader.ReadBitflagInt16(ref strBitflags, reader);
string noIdeaStr2 = CaesarReader.ReadBitflagStringWithReader(ref strBitflags, reader, stringBaseAddress);
byte[] blob = new byte[] { };
if (blobSize > 0)
{
long blobFileAddress = stringBaseAddress + offsetToBlob;
reader.BaseStream.Seek(blobFileAddress, SeekOrigin.Begin);
blob = reader.ReadBytes(blobSize);
// memcpy
}
string valueType = language.GetString(valueType_T);
DefaultData.Add(new Tuple <string, byte[]>(valueType, blob));
//Console.WriteLine($"Blob: {BitUtility.BytesToHex(blob)} @ {valueType}");
//Console.WriteLine($"String base address: 0x{stringBaseAddress:X}");
}
}
}
}
