//Reading names requires a high random access, set readNames to false if you don't need them
public AssetsFileTable(AssetsFile pFile, bool readNames = true)
{
this.pFile = pFile;
reader = pFile.reader;
readerPar = pFile.readerPar;
reader.bigEndian = pFile.header.endianness == 1 ? true : false;
reader.BaseStream.Position = pFile.AssetTablePos;
assetFileInfoCount = pFile.AssetCount;
pAssetFileInfo = new AssetFileInfoEx[assetFileInfoCount];
for (int i = 0; i < assetFileInfoCount; i++)
{
AssetFileInfoEx assetFileInfoSet = new AssetFileInfoEx();
assetFileInfoSet.Read(pFile.header.format, reader.Position, reader, pFile.header.endianness == 1 ? true : false);
assetFileInfoSet.absoluteFilePos = pFile.header.offs_firstFile + assetFileInfoSet.offs_curFile;
assetFileInfoSet.curFileType = (uint)pFile.typeTree.pTypes_Unity5[assetFileInfoSet.curFileTypeOrIndex].classId; //todo: fix this variable (it can be from a different variable (index))
pAssetFileInfo[i] = assetFileInfoSet;
//-Check 0x111FB for readNames stuff
}
}
public void Read(AssetsFileReader reader)
{
reader.bigEndian = false;
header = reader.ReadStringLength(4);
if (header != "cldb")
{
throw new Exception("header not detected. is this a cldb file?");
}
fileVersion = reader.ReadByte();
flags = 0;
if (fileVersion == 4)
{
flags = reader.ReadByte();
}
switch (fileVersion)
{
case 1:
compressionType = 0;
break;
case 2:
compressionType = reader.ReadByte();
break;
case 3:
case 4:
compressionType = reader.ReadByte();
compressedSize = reader.ReadUInt32();
uncompressedSize = reader.ReadUInt32();
break;
default:
return;
}
unityVersionCount = reader.ReadByte();
unityVersions = new string[unityVersionCount];
for (int i = 0; i < unityVersionCount; i++)
{
unityVersions[i] = reader.ReadCountString();
}
stringTableLen = reader.ReadUInt32();
stringTablePos = reader.ReadUInt32();
}
public void Read(AssetsFileReader reader, uint format)
{
version = reader.ReadUInt16();
depth = reader.ReadByte();
isArray = reader.ReadByte();
typeStringOffset = reader.ReadUInt32();
nameStringOffset = reader.ReadUInt32();
size = reader.ReadInt32();
index = reader.ReadUInt32();
flags = reader.ReadUInt32();
if (format >= 0x12)
{
unknown = reader.ReadBytes(8);
}
else
{
unknown = new byte[0];
}
}
public byte[] unknown; //0x18
public ulong Read(ulong absFilePos, AssetsFileReader reader, uint format, bool bigEndian)
{
version = reader.ReadUInt16();
depth = reader.ReadByte();
isArray = reader.ReadByte();
typeStringOffset = reader.ReadUInt32();
nameStringOffset = reader.ReadUInt32();
size = reader.ReadUInt32();
index = reader.ReadUInt32();
flags = reader.ReadUInt32();
if (format >= 0x12)
{
unknown = reader.ReadBytes(8);
}
else
{
unknown = new byte[0];
}
return(reader.Position);
}
public void Read(AssetsFileReader reader, int version, byte flags)
{
classId = reader.ReadInt32();
baseClass = reader.ReadInt32();
name = new ClassDatabaseFileString();
name.Read(reader);
if ((flags & 1) != 0)
{
assemblyFileName = new ClassDatabaseFileString();
assemblyFileName.Read(reader);
}
uint fieldCount = reader.ReadUInt32();
fields = new List <ClassDatabaseTypeField>();
for (int i = 0; i < fieldCount; i++)
{
ClassDatabaseTypeField cdtf = new ClassDatabaseTypeField();
cdtf.Read(reader, version);
fields.Add(cdtf);
}
}
public void Read(AssetsFileReader reader)
{
metadataSize = reader.ReadUInt32();
fileSize = reader.ReadUInt32();
format = reader.ReadUInt32();
firstFileOffset = reader.ReadUInt32();
if (format < 9)
{
endianness = reader.ReadByte();
}
else
{
endianness = 0;
}
reader.bigEndian = endianness == 1 ? true : false;
if (format >= 9)
{
unknown = reader.ReadBytes(3);
}
reader.Align();
}
public uint dwUnknown; //actually belongs to the asset list; stored for .assets format < 14
public void Read(AssetsFileReader reader, uint version)
{
unityVersion = reader.ReadNullTerminated();
this.version = reader.ReadUInt32();
if (version >= 0x0D)
{
hasTypeTree = reader.ReadBoolean();
}
fieldCount = reader.ReadInt32();
unity5Types = new List <Type_0D>();
for (int i = 0; i < fieldCount; i++)
{
Type_0D type0d = new Type_0D();
type0d.Read(hasTypeTree, reader, version);
unity5Types.Add(type0d);
}
if (version < 0x0E)
{
dwUnknown = reader.ReadUInt24();
}
}//Minimum AssetsFile format : 6
public override bool Init(AssetsFileReader entryReader, long entryPos, long entrySize, ClassDatabaseFile typeMeta = null)
{
if (assetsFile != null)
{
return(false);
}
this.typeMeta = typeMeta;
entryReader.Position = entryPos;
//memorystream for alignment issue
MemoryStream ms = new MemoryStream();
AssetsFileReader r = new AssetsFileReader(ms);
AssetsFileWriter w = new AssetsFileWriter(ms);
{
w.Write(entryReader.ReadBytes((int)entrySize));
ms.Position = 0;
assetsFile = new AssetsFile(r);
}
return(true);
}
public ulong Read(bool hasTypeTree, ulong absFilePos, AssetsFileReader reader, uint version, uint typeVersion, bool bigEndian)
{
classId = reader.ReadInt32();
if (version >= 0x10)
{
unknown16_1 = reader.ReadByte();
}
if (version >= 0x11)
{
scriptIndex = reader.ReadUInt16();
}
//if ((version < 0x11 && classId < 0) || (version >= 0x11 && scriptIndex != 0xFFFF)) //original is if (classId == 114)
//if ((version < 0x11 && classId < 0) || (version >= 0x11 && scriptIndex != 0xFFFF))
if ((version < 0x11 && classId < 0) || (version >= 0x11 && classId == 114))
{
unknown1 = reader.ReadUInt32();
unknown2 = reader.ReadUInt32();
unknown3 = reader.ReadUInt32();
unknown4 = reader.ReadUInt32();
}
unknown5 = reader.ReadUInt32();
unknown6 = reader.ReadUInt32();
unknown7 = reader.ReadUInt32();
unknown8 = reader.ReadUInt32();
if (hasTypeTree)
{
typeFieldsExCount = reader.ReadUInt32();
stringTableLen = reader.ReadUInt32();
pTypeFieldsEx = new TypeField_0D[typeFieldsExCount];
for (int i = 0; i < typeFieldsExCount; i++)
{
TypeField_0D typefield0d = new TypeField_0D();
typefield0d.Read(reader.Position, reader, version, bigEndian);
pTypeFieldsEx[i] = typefield0d;
}
pStringTable = Encoding.UTF8.GetString(reader.ReadBytes((int)stringTableLen));
}
return(reader.Position);
}
public void Read(AssetsFileReader reader)
{
reader.bigEndian = false;
magic = reader.ReadStringLength(4);
fileVersion = reader.ReadByte();
compressionType = reader.ReadByte();
stringTableOffset = reader.ReadUInt32();
stringTableLenUncompressed = reader.ReadUInt32();
stringTableLenCompressed = reader.ReadUInt32();
fileBlockSize = reader.ReadUInt32();
fileCount = reader.ReadUInt32();
files = new List <ClassDatabaseFileRef>();
for (int i = 0; i < fileCount; i++)
{
files.Add(new ClassDatabaseFileRef()
{
offset = reader.ReadUInt32(),
length = reader.ReadUInt32(),
name = reader.ReadStringLength(15)
});
}
}
public AssetsFile(AssetsFileReader reader)
{
this.reader = reader;
readerPar = reader.BaseStream;
header = new AssetsFileHeader();
header.Read(reader);
typeTree = new TypeTree();
typeTree.Read(reader, header.format);
AssetCount = reader.ReadUInt32();
if (header.format == 15)
{
reader.Position += 3;
}
else
{
reader.Align();
}
AssetTablePos = Convert.ToUInt32(reader.BaseStream.Position);
reader.BaseStream.Position += AssetFileInfo.GetSize(header.format) * AssetCount;
if (header.format == 15)
{
reader.BaseStream.Position -= 3;
}
if (header.format > 0x0B)
{
preloadTable = new PreloadList();
preloadTable.Read(reader);
}
if (header.format == 15)
{
reader.Align();
}
dependencies = new AssetsFileDependencyList();
dependencies.Read(reader);
}
public void Read(AssetsFileReader reader)
{
metadataSize = reader.ReadUInt32();
fileSize = reader.ReadUInt32();
format = reader.ReadUInt32();
firstFileOffset = reader.ReadUInt32();
endianness = reader.ReadByte(); //todo "fileSize - metadataSize" for v<9 but I have no files to test on
unknown = reader.ReadBytes(3);
reader.Align();
if (format >= 0x16)
{
metadataSize = reader.ReadUInt32();
fileSize = reader.ReadInt64();
firstFileOffset = reader.ReadInt64();
}
reader.bigEndian = endianness == 1;
if (format >= 0x16)
{
unknown1 = reader.ReadUInt32(); //seen as 0x00 everywhere
unknown2 = reader.ReadUInt32(); //seen as 0x1b in bundles and 0x00 everywhere else
}
}
public ulong Read(AssetsFileReader reader, ulong filePos)
{
reader.bigEndian = false;
header = reader.ReadStringLength(4);
if (header != "cldb")
{
return(reader.Position);
}
fileVersion = reader.ReadByte();
switch (fileVersion)
{
case 1:
break;
case 3:
compressionType = reader.ReadByte();
if (compressionType != 0)
{
return(reader.Position);
}
compressedSize = reader.ReadUInt32();
uncompressedSize = reader.ReadUInt32();
break;
default:
return(reader.Position);
}
unityVersionCount = reader.ReadByte();
pUnityVersions = new string[unityVersionCount];
for (int i = 0; i < unityVersionCount; i++)
{
pUnityVersions[i] = reader.ReadCountString();
}
stringTableLen = reader.ReadUInt32();
stringTablePos = reader.ReadUInt32();
return(reader.Position);
}
public void Read(bool hasTypeTree, AssetsFileReader reader, uint version)
{
classId = reader.ReadInt32();
if (version >= 0x10)
{
unknown16_1 = reader.ReadByte();
}
if (version >= 0x11)
{
scriptIndex = reader.ReadUInt16();
}
if ((version < 0x11 && classId < 0) || (version >= 0x11 && classId == 114))
{
scriptHash1 = reader.ReadUInt32();
scriptHash2 = reader.ReadUInt32();
scriptHash3 = reader.ReadUInt32();
scriptHash4 = reader.ReadUInt32();
}
typeHash1 = reader.ReadUInt32();
typeHash2 = reader.ReadUInt32();
typeHash3 = reader.ReadUInt32();
typeHash4 = reader.ReadUInt32();
if (hasTypeTree)
{
typeFieldsExCount = reader.ReadUInt32();
stringTableLen = reader.ReadUInt32();
typeFieldsEx = new TypeField_0D[typeFieldsExCount];
for (int i = 0; i < typeFieldsExCount; i++)
{
TypeField_0D typefield0d = new TypeField_0D();
typefield0d.Read(reader, version);
typeFieldsEx[i] = typefield0d;
}
stringTable = Encoding.UTF8.GetString(reader.ReadBytes((int)stringTableLen));
}
}
public AssetsFile(AssetsFileReader reader)
{
this.reader = reader;
readerPar = reader.BaseStream;
header = new AssetsFileHeader();
header.Read(reader);
typeTree = new TypeTree();
typeTree.Read(reader, header.format);
assetCount = reader.ReadUInt32();
reader.Align();
assetTablePos = (uint)reader.BaseStream.Position;
int assetInfoSize = AssetFileInfo.GetSize(header.format);
if (0x0F <= header.format && header.format <= 0x10)
{
//for these two versions, the asset info is not aligned
//for the last entry, so we have to do some weird stuff
reader.BaseStream.Position += ((assetInfoSize + 3) >> 2 << 2) * (assetCount - 1) + assetInfoSize;
}
else
{
reader.BaseStream.Position += AssetFileInfo.GetSize(header.format) * assetCount;
}
if (header.format > 0x0B)
{
preloadTable = new PreloadList();
preloadTable.Read(reader);
}
dependencies = new AssetsFileDependencyList();
dependencies.Read(reader);
}
public AssetTypeValueField ReadType(AssetsFileReader reader, ulong filePos, AssetTypeValueField valueField, bool bigEndian)
{
if (valueField.templateField.isArray)
{
if (valueField.templateField.childrenCount == 2)
{
EnumValueTypes sizeType = valueField.templateField.children[0].valueType;
if (sizeType == EnumValueTypes.ValueType_Int32 ||
sizeType == EnumValueTypes.ValueType_UInt32)
{
valueField.childrenCount = reader.ReadUInt32();
valueField.pChildren = new AssetTypeValueField[valueField.childrenCount];
for (int i = 0; i < valueField.childrenCount; i++)
{
valueField.pChildren[i] = new AssetTypeValueField();
valueField.pChildren[i].templateField = valueField.templateField.children[1];
valueField.pChildren[i] = ReadType(reader, reader.Position, valueField.pChildren[i], bigEndian);
}
if (valueField.templateField.align)
{
reader.Align();
}
AssetTypeArray ata = new AssetTypeArray();
ata.size = valueField.childrenCount;
valueField.value = new AssetTypeValue(EnumValueTypes.ValueType_Array, 0);
valueField.value.Set(ata);
}
else
{
Debug.WriteLine("Invalid array value type! Found an unexpected " + sizeType.ToString() + " type instead!");
}
}
else
{
Debug.WriteLine("Invalid array!");
}
}
else
{
EnumValueTypes type = valueField.templateField.valueType;
if (type != 0)
{
valueField.value = new AssetTypeValue(type, 0);
}
if (type == EnumValueTypes.ValueType_String)
{
valueField.value.Set(reader.ReadCountStringInt32());
reader.Align();
}
else
{
valueField.childrenCount = valueField.templateField.childrenCount;
if (valueField.childrenCount == 0)
{
valueField.pChildren = new AssetTypeValueField[0];
switch (valueField.templateField.valueType)
{
case EnumValueTypes.ValueType_Int8:
valueField.value.Set(reader.ReadSByte());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.ValueType_UInt8:
case EnumValueTypes.ValueType_Bool:
valueField.value.Set(reader.ReadByte());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.ValueType_Int16:
valueField.value.Set(reader.ReadInt16());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.ValueType_UInt16:
valueField.value.Set(reader.ReadUInt16());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.ValueType_Int32:
valueField.value.Set(reader.ReadInt32());
break;
case EnumValueTypes.ValueType_UInt32:
valueField.value.Set(reader.ReadUInt32());
break;
case EnumValueTypes.ValueType_Int64:
valueField.value.Set(reader.ReadInt64());
break;
case EnumValueTypes.ValueType_UInt64:
valueField.value.Set(reader.ReadUInt64());
break;
case EnumValueTypes.ValueType_Float:
valueField.value.Set(reader.ReadSingle());
break;
case EnumValueTypes.ValueType_Double:
valueField.value.Set(reader.ReadDouble());
break;
}
}
else
{
valueField.pChildren = new AssetTypeValueField[valueField.childrenCount];
for (int i = 0; i < valueField.childrenCount; i++)
{
valueField.pChildren[i] = new AssetTypeValueField();
valueField.pChildren[i].templateField = valueField.templateField.children[i];
valueField.pChildren[i] = ReadType(reader, reader.Position, valueField.pChildren[i], bigEndian);
}
if (valueField.templateField.align)
{
reader.Align();
}
}
}
}
return(valueField);
}
///public bool From07(TypeField_07 typeField)
public void MakeValue(AssetsFileReader reader, out AssetTypeValueField valueField)
{
valueField = new AssetTypeValueField();
valueField.templateField = this;
valueField = ReadType(reader, valueField);
}
///public bool Write(AssetsFileReader reader, LPARAM readerPar,
/// AssetsFileWriter writer, LPARAM writerPar,
///
/// class BundleReplacer **pReplacers, size_t replacerCount,
/// AssetsFileVerifyLogger errorLogger = NULL, ClassDatabaseFile* typeMeta = NULL);
//-todo, use a faster custom bundle decompressor. currently a copy paste of unity studio's
public bool Unpack(AssetsFileReader reader, AssetsFileWriter writer)
{
if (Read(reader, true))
{
reader.Position = bundleHeader6.GetBundleInfoOffset();
MemoryStream blocksInfoStream;
AssetsFileReader memReader;
switch (bundleHeader6.flags & 0x3F)
{
case 1:
blocksInfoStream = SevenZipHelper.StreamDecompress(new MemoryStream(reader.ReadBytes((int)bundleHeader6.compressedSize)));
break;
case 2:
case 3:
byte[] uncompressedBytes = new byte[bundleHeader6.decompressedSize];
using (var mstream = new MemoryStream(reader.ReadBytes((int)bundleHeader6.compressedSize)))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, (int)bundleHeader6.decompressedSize);
decoder.Dispose();
}
blocksInfoStream = new MemoryStream(uncompressedBytes);
break;
default:
blocksInfoStream = null;
break;
}
if ((bundleHeader6.flags & 0x3F) != 0)
{
using (memReader = new AssetsFileReader(blocksInfoStream))
{
bundleInf6.Read(0, memReader);
}
}
reader.Position = bundleHeader6.GetFileDataOffset();
byte[][] blocksData = new byte[bundleInf6.blockCount][];
for (int i = 0; i < bundleInf6.blockCount; i++)
{
AssetsBundleBlockInfo06 info = bundleInf6.blockInf[i];
byte[] data = reader.ReadBytes((int)info.compressedSize);
switch (info.flags & 0x3F)
{
case 0:
blocksData[i] = data;
break;
case 1:
blocksData[i] = new byte[info.decompressedSize];
using (MemoryStream mstream = new MemoryStream(data))
{
MemoryStream decoder = SevenZipHelper.StreamDecompress(mstream, info.decompressedSize);
decoder.Read(blocksData[i], 0, (int)info.decompressedSize);
decoder.Dispose();
}
break;
case 2:
case 3:
blocksData[i] = new byte[info.decompressedSize];
using (MemoryStream mstream = new MemoryStream(data))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(blocksData[i], 0, (int)info.decompressedSize);
decoder.Dispose();
}
break;
}
}
AssetsBundleHeader06 newBundleHeader6 = new AssetsBundleHeader06()
{
signature = bundleHeader6.signature,
fileVersion = bundleHeader6.fileVersion,
minPlayerVersion = bundleHeader6.minPlayerVersion,
fileEngineVersion = bundleHeader6.fileEngineVersion,
totalFileSize = 0,
compressedSize = bundleHeader6.decompressedSize,
decompressedSize = bundleHeader6.decompressedSize,
flags = bundleHeader6.flags & 0x40 //set compression and block position to 0
};
ulong fileSize = newBundleHeader6.GetFileDataOffset();
for (int i = 0; i < bundleInf6.blockCount; i++)
{
fileSize += bundleInf6.blockInf[i].decompressedSize;
}
newBundleHeader6.totalFileSize = fileSize;
AssetsBundleBlockAndDirectoryList06 newBundleInf6 = new AssetsBundleBlockAndDirectoryList06()
{
checksumLow = 0, //-todo, figure out how to make real checksums, uabe sets these to 0 too
checksumHigh = 0,
blockCount = bundleInf6.blockCount,
directoryCount = bundleInf6.directoryCount
};
newBundleInf6.blockInf = new AssetsBundleBlockInfo06[newBundleInf6.blockCount];
for (int i = 0; i < newBundleInf6.blockCount; i++)
{
newBundleInf6.blockInf[i] = new AssetsBundleBlockInfo06();
newBundleInf6.blockInf[i].compressedSize = bundleInf6.blockInf[i].decompressedSize;
newBundleInf6.blockInf[i].decompressedSize = bundleInf6.blockInf[i].decompressedSize;
newBundleInf6.blockInf[i].flags = (ushort)(bundleInf6.blockInf[i].flags & 0xC0); //set compression to none
}
newBundleInf6.dirInf = new AssetsBundleDirectoryInfo06[newBundleInf6.directoryCount];
for (int i = 0; i < newBundleInf6.directoryCount; i++)
{
newBundleInf6.dirInf[i].offset = bundleInf6.dirInf[i].offset;
newBundleInf6.dirInf[i].decompressedSize = bundleInf6.dirInf[i].decompressedSize;
newBundleInf6.dirInf[i].flags = bundleInf6.dirInf[i].flags;
newBundleInf6.dirInf[i].name = bundleInf6.dirInf[i].name;
}
newBundleHeader6.Write(writer, 0);
newBundleInf6.Write(writer, writer.Position);
for (int i = 0; i < newBundleInf6.blockCount; i++)
{
writer.Write(blocksData[i]);
}
return(true);
}
return(false);
}
public bool IsAssetsFile(AssetsFileReader reader, AssetBundleDirectoryInfo06 entry)
{
long offset = bundleHeader6.GetFileDataOffset() + entry.offset;
return(AssetsFile.IsAssetsFile(reader, offset, entry.decompressedSize));
}
public bool Unpack(AssetsFileReader reader, AssetsFileWriter writer)
{
reader.Position = 0;
if (Read(reader, true))
{
reader.Position = bundleHeader6.GetBundleInfoOffset();
MemoryStream blocksInfoStream;
AssetsFileReader memReader;
int compressedSize = (int)bundleHeader6.compressedSize;
switch (bundleHeader6.GetCompressionType())
{
case 1:
using (MemoryStream mstream = new MemoryStream(reader.ReadBytes(compressedSize)))
{
blocksInfoStream = SevenZipHelper.StreamDecompress(mstream);
}
break;
case 2:
case 3:
byte[] uncompressedBytes = new byte[bundleHeader6.decompressedSize];
using (MemoryStream mstream = new MemoryStream(reader.ReadBytes(compressedSize)))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, (int)bundleHeader6.decompressedSize);
decoder.Dispose();
}
blocksInfoStream = new MemoryStream(uncompressedBytes);
break;
default:
blocksInfoStream = null;
break;
}
if (bundleHeader6.GetCompressionType() != 0)
{
using (memReader = new AssetsFileReader(blocksInfoStream))
{
memReader.Position = 0;
bundleInf6.Read(0, memReader);
}
}
AssetBundleHeader06 newBundleHeader6 = new AssetBundleHeader06()
{
signature = bundleHeader6.signature,
fileVersion = bundleHeader6.fileVersion,
minPlayerVersion = bundleHeader6.minPlayerVersion,
fileEngineVersion = bundleHeader6.fileEngineVersion,
totalFileSize = 0,
compressedSize = bundleHeader6.decompressedSize,
decompressedSize = bundleHeader6.decompressedSize,
flags = bundleHeader6.flags & 0x40 //set compression and block position to 0
};
long fileSize = newBundleHeader6.GetFileDataOffset();
for (int i = 0; i < bundleInf6.blockCount; i++)
{
fileSize += bundleInf6.blockInf[i].decompressedSize;
}
newBundleHeader6.totalFileSize = fileSize;
AssetBundleBlockAndDirectoryList06 newBundleInf6 = new AssetBundleBlockAndDirectoryList06()
{
checksumLow = 0, //-todo, figure out how to make real checksums, uabe sets these to 0 too
checksumHigh = 0,
blockCount = bundleInf6.blockCount,
directoryCount = bundleInf6.directoryCount
};
newBundleInf6.blockInf = new AssetBundleBlockInfo06[newBundleInf6.blockCount];
for (int i = 0; i < newBundleInf6.blockCount; i++)
{
newBundleInf6.blockInf[i] = new AssetBundleBlockInfo06()
{
compressedSize = bundleInf6.blockInf[i].decompressedSize,
decompressedSize = bundleInf6.blockInf[i].decompressedSize,
flags = (ushort)(bundleInf6.blockInf[i].flags & 0xC0) //set compression to none
};
}
newBundleInf6.dirInf = new AssetBundleDirectoryInfo06[newBundleInf6.directoryCount];
for (int i = 0; i < newBundleInf6.directoryCount; i++)
{
newBundleInf6.dirInf[i] = new AssetBundleDirectoryInfo06()
{
offset = bundleInf6.dirInf[i].offset,
decompressedSize = bundleInf6.dirInf[i].decompressedSize,
flags = bundleInf6.dirInf[i].flags,
name = bundleInf6.dirInf[i].name
};
}
newBundleHeader6.Write(writer);
if (newBundleHeader6.fileVersion >= 7)
{
writer.Align16();
}
newBundleInf6.Write(writer);
reader.Position = bundleHeader6.GetFileDataOffset();
for (int i = 0; i < newBundleInf6.blockCount; i++)
{
AssetBundleBlockInfo06 info = bundleInf6.blockInf[i];
switch (info.GetCompressionType())
{
case 0:
reader.BaseStream.CopyToCompat(writer.BaseStream, info.compressedSize);
break;
case 1:
SevenZipHelper.StreamDecompress(reader.BaseStream, writer.BaseStream, info.compressedSize, info.decompressedSize);
break;
case 2:
case 3:
using (MemoryStream tempMs = new MemoryStream())
{
reader.BaseStream.CopyToCompat(tempMs, info.compressedSize);
tempMs.Position = 0;
using (Lz4DecoderStream decoder = new Lz4DecoderStream(tempMs))
{
decoder.CopyToCompat(writer.BaseStream, info.decompressedSize);
}
}
break;
}
}
return(true);
}
return(false);
}
public bool Read(AssetsFileReader reader)
{
header = new ClassDatabasePackageHeader();
header.Read(reader);
files = new List <ClassDatabaseFile>();
long firstFile = reader.Position;
AssetsFileReader newReader = reader;
if ((header.compressionType & 0x80) == 0) //multiple compressed blocks
{
//untested!
//the compression is handled by the cldbs themselves
for (int i = 0; i < header.fileCount; i++)
{
newReader.Position = firstFile + header.files[i].offset;
byte[] data = newReader.ReadBytes((int)header.files[i].length);
using (MemoryStream ms = new MemoryStream(data))
using (AssetsFileReader r = new AssetsFileReader(ms))
{
ClassDatabaseFile file = new ClassDatabaseFile();
file.Read(r);
files.Add(file);
}
}
}
else //one compressed block
{
if ((header.compressionType & 0x20) == 0) //file block compressed
{
firstFile = 0;
int compressedSize = (int)(header.stringTableOffset - newReader.Position);
int uncompressedSize = (int)header.fileBlockSize;
MemoryStream ms;
if ((header.compressionType & 0x1f) == 1) //lz4
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (MemoryStream tempMs = new MemoryStream(newReader.ReadBytes(compressedSize)))
{
Lz4DecoderStream decoder = new Lz4DecoderStream(tempMs);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
ms = new MemoryStream(uncompressedBytes);
}
else if ((header.compressionType & 0x1f) == 2) //lzma
{
byte[] dbg = newReader.ReadBytes(compressedSize);
using (MemoryStream tempMs = new MemoryStream(dbg))
{
ms = SevenZipHelper.StreamDecompress(tempMs, uncompressedSize);
}
}
else
{
valid = false;
return(valid);
}
newReader = new AssetsFileReader(ms);
newReader.bigEndian = false;
}
for (int i = 0; i < header.fileCount; i++)
{
newReader.Position = firstFile + header.files[i].offset;
byte[] data = newReader.ReadBytes((int)header.files[i].length);
using (MemoryStream ms = new MemoryStream(data))
using (AssetsFileReader r = new AssetsFileReader(ms))
{
ClassDatabaseFile file = new ClassDatabaseFile();
file.Read(r);
files.Add(file);
}
}
}
newReader = reader;
newReader.Position = header.stringTableOffset;
if ((header.compressionType & 0x40) == 0) //string table is compressed
{
int compressedSize = (int)header.stringTableLenCompressed;
int uncompressedSize = (int)header.stringTableLenUncompressed;
MemoryStream ms;
if ((header.compressionType & 0x1f) == 1) //lz4
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (MemoryStream tempMs = new MemoryStream(newReader.ReadBytes(compressedSize)))
{
Lz4DecoderStream decoder = new Lz4DecoderStream(tempMs);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
ms = new MemoryStream(uncompressedBytes);
}
else if ((header.compressionType & 0x1f) == 2) //lzma
{
using (MemoryStream tempMs = new MemoryStream(newReader.ReadBytes(compressedSize)))
{
ms = SevenZipHelper.StreamDecompress(tempMs, uncompressedSize);
}
}
else
{
valid = false;
return(valid);
}
newReader = new AssetsFileReader(ms);
newReader.bigEndian = false;
}
stringTable = newReader.ReadBytes((int)header.stringTableLenUncompressed);
for (int i = 0; i < header.fileCount; i++)
{
files[i].stringTable = stringTable;
}
valid = true;
return(valid);
}
public long leastSignificant; //0-63 //big-endian
public ulong Read(ulong absFilePos, AssetsFileReader reader)
{
mostSignificant = reader.ReadInt64();
leastSignificant = reader.ReadInt64();
return(reader.Position);
}
public AssetTypeValueField ReadType(AssetsFileReader reader, AssetTypeValueField valueField)
{
if (valueField.templateField.isArray)
{
if (valueField.templateField.childrenCount == 2)
{
EnumValueTypes sizeType = valueField.templateField.children[0].valueType;
if (sizeType == EnumValueTypes.Int32 ||
sizeType == EnumValueTypes.UInt32)
{
if (valueField.templateField.valueType == EnumValueTypes.ByteArray)
{
valueField.childrenCount = 0;
valueField.children = new AssetTypeValueField[0];
int size = reader.ReadInt32();
byte[] data = reader.ReadBytes(size);
if (valueField.templateField.align)
{
reader.Align();
}
AssetTypeByteArray atba = new AssetTypeByteArray();
atba.size = (uint)size;
atba.data = data;
valueField.value = new AssetTypeValue(EnumValueTypes.ByteArray, atba);
}
else
{
valueField.childrenCount = reader.ReadInt32();
valueField.children = new AssetTypeValueField[valueField.childrenCount];
for (int i = 0; i < valueField.childrenCount; i++)
{
valueField.children[i] = new AssetTypeValueField();
valueField.children[i].templateField = valueField.templateField.children[1];
valueField.children[i] = ReadType(reader, valueField.children[i]);
}
if (valueField.templateField.align)
{
reader.Align();
}
AssetTypeArray ata = new AssetTypeArray();
ata.size = valueField.childrenCount;
valueField.value = new AssetTypeValue(EnumValueTypes.Array, ata);
}
}
else
{
throw new Exception("Invalid array value type! Found an unexpected " + sizeType.ToString() + " type instead!");
}
}
else
{
throw new Exception("Invalid array!");
}
}
else
{
EnumValueTypes type = valueField.templateField.valueType;
if (type != 0)
{
valueField.value = new AssetTypeValue(type, null);
}
if (type == EnumValueTypes.String)
{
int length = reader.ReadInt32();
valueField.value.Set(reader.ReadBytes(length));
reader.Align();
}
else
{
valueField.childrenCount = valueField.templateField.childrenCount;
if (valueField.childrenCount == 0)
{
valueField.children = new AssetTypeValueField[0];
switch (valueField.templateField.valueType)
{
case EnumValueTypes.Int8:
valueField.value.Set(reader.ReadSByte());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.UInt8:
case EnumValueTypes.Bool:
valueField.value.Set(reader.ReadByte());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.Int16:
valueField.value.Set(reader.ReadInt16());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.UInt16:
valueField.value.Set(reader.ReadUInt16());
if (valueField.templateField.align)
{
reader.Align();
}
break;
case EnumValueTypes.Int32:
valueField.value.Set(reader.ReadInt32());
break;
case EnumValueTypes.UInt32:
valueField.value.Set(reader.ReadUInt32());
break;
case EnumValueTypes.Int64:
valueField.value.Set(reader.ReadInt64());
break;
case EnumValueTypes.UInt64:
valueField.value.Set(reader.ReadUInt64());
break;
case EnumValueTypes.Float:
valueField.value.Set(reader.ReadSingle());
break;
case EnumValueTypes.Double:
valueField.value.Set(reader.ReadDouble());
break;
}
}
else
{
valueField.children = new AssetTypeValueField[valueField.childrenCount];
for (int i = 0; i < valueField.childrenCount; i++)
{
valueField.children[i] = new AssetTypeValueField();
valueField.children[i].templateField = valueField.templateField.children[i];
valueField.children[i] = ReadType(reader, valueField.children[i]);
}
if (valueField.templateField.align)
{
reader.Align();
}
}
}
}
return(valueField);
}
public long leastSignificant; //0-63 //big-endian
public void Read(AssetsFileReader reader)
{
mostSignificant = reader.ReadInt64();
leastSignificant = reader.ReadInt64();
}
public override bool Init(AssetsFileReader entryReader, long entryPos, long entrySize, ClassDatabaseFile typeMeta = null)
{
return(true);
}
public bool Pack(AssetsFileReader reader, AssetsFileWriter writer, AssetBundleCompressionType compType, bool blockDirAtEnd = true)
{
reader.Position = 0;
writer.Position = 0;
if (Read(reader, false))
{
AssetBundleHeader06 newHeader = new AssetBundleHeader06()
{
signature = bundleHeader6.signature,
fileVersion = bundleHeader6.fileVersion,
minPlayerVersion = bundleHeader6.minPlayerVersion,
fileEngineVersion = bundleHeader6.fileEngineVersion,
totalFileSize = 0,
compressedSize = 0,
decompressedSize = 0,
flags = (uint)(0x43 | (blockDirAtEnd ? 0x80 : 0x00))
};
AssetBundleBlockAndDirectoryList06 newBlockAndDirList = new AssetBundleBlockAndDirectoryList06()
{
checksumLow = 0,
checksumHigh = 0,
blockCount = 0,
blockInf = null,
directoryCount = bundleInf6.directoryCount,
dirInf = bundleInf6.dirInf
};
//write header now and overwrite it later
long startPos = writer.Position;
newHeader.Write(writer);
if (newHeader.fileVersion >= 7)
{
writer.Align16();
}
int headerSize = (int)(writer.Position - startPos);
long totalCompressedSize = 0;
List <AssetBundleBlockInfo06> newBlocks = new List <AssetBundleBlockInfo06>();
List <Stream> newStreams = new List <Stream>(); //used if blockDirAtEnd == false
long fileDataOffset = bundleHeader6.GetFileDataOffset();
int fileDataLength = (int)(bundleHeader6.totalFileSize - fileDataOffset);
SegmentStream bundleDataStream = new SegmentStream(reader.BaseStream, fileDataOffset, fileDataLength);
switch (compType)
{
case AssetBundleCompressionType.LZMA:
{
Stream writeStream;
if (blockDirAtEnd)
{
writeStream = writer.BaseStream;
}
else
{
writeStream = GetTempFileStream();
}
long writeStreamStart = writeStream.Position;
SevenZipHelper.Compress(bundleDataStream, writeStream);
uint writeStreamLength = (uint)(writeStream.Position - writeStreamStart);
AssetBundleBlockInfo06 blockInfo = new AssetBundleBlockInfo06()
{
compressedSize = writeStreamLength,
decompressedSize = (uint)fileDataLength,
flags = 0x41
};
totalCompressedSize += blockInfo.compressedSize;
newBlocks.Add(blockInfo);
if (!blockDirAtEnd)
{
newStreams.Add(writeStream);
}
break;
}
case AssetBundleCompressionType.LZ4:
{
//compress into 0x20000 blocks
BinaryReader bundleDataReader = new BinaryReader(bundleDataStream);
byte[] uncompressedBlock = bundleDataReader.ReadBytes(0x20000);
while (uncompressedBlock.Length != 0)
{
Stream writeStream;
if (blockDirAtEnd)
{
writeStream = writer.BaseStream;
}
else
{
writeStream = GetTempFileStream();
}
byte[] compressedBlock = LZ4Codec.Encode32HC(uncompressedBlock, 0, uncompressedBlock.Length);
if (compressedBlock.Length > uncompressedBlock.Length)
{
writeStream.Write(uncompressedBlock, 0, uncompressedBlock.Length);
AssetBundleBlockInfo06 blockInfo = new AssetBundleBlockInfo06()
{
compressedSize = (uint)uncompressedBlock.Length,
decompressedSize = (uint)uncompressedBlock.Length,
flags = 0x0
};
totalCompressedSize += blockInfo.compressedSize;
newBlocks.Add(blockInfo);
}
else
{
writeStream.Write(compressedBlock, 0, compressedBlock.Length);
AssetBundleBlockInfo06 blockInfo = new AssetBundleBlockInfo06()
{
compressedSize = (uint)compressedBlock.Length,
decompressedSize = (uint)uncompressedBlock.Length,
flags = 0x3
};
totalCompressedSize += blockInfo.compressedSize;
newBlocks.Add(blockInfo);
}
if (!blockDirAtEnd)
{
newStreams.Add(writeStream);
}
uncompressedBlock = bundleDataReader.ReadBytes(0x20000);
}
break;
}
case AssetBundleCompressionType.NONE:
{
AssetBundleBlockInfo06 blockInfo = new AssetBundleBlockInfo06()
{
compressedSize = (uint)fileDataLength,
decompressedSize = (uint)fileDataLength,
flags = 0x00
};
totalCompressedSize += blockInfo.compressedSize;
newBlocks.Add(blockInfo);
if (blockDirAtEnd)
{
bundleDataStream.CopyToCompat(writer.BaseStream);
}
else
{
newStreams.Add(bundleDataStream);
}
break;
}
}
newBlockAndDirList.blockInf = newBlocks.ToArray();
byte[] bundleInfoBytes;
using (MemoryStream memStream = new MemoryStream())
{
AssetsFileWriter infoWriter = new AssetsFileWriter(memStream);
newBlockAndDirList.Write(infoWriter);
bundleInfoBytes = memStream.ToArray();
}
//listing is usually lz4 even if the data blocks are lzma
byte[] bundleInfoBytesCom = LZ4Codec.Encode32HC(bundleInfoBytes, 0, bundleInfoBytes.Length);
long totalFileSize = headerSize + bundleInfoBytesCom.Length + totalCompressedSize;
newHeader.totalFileSize = totalFileSize;
newHeader.decompressedSize = (uint)bundleInfoBytes.Length;
newHeader.compressedSize = (uint)bundleInfoBytesCom.Length;
if (!blockDirAtEnd)
{
writer.Write(bundleInfoBytesCom);
foreach (Stream newStream in newStreams)
{
newStream.Position = 0;
newStream.CopyToCompat(writer.BaseStream);
newStream.Close();
}
}
else
{
writer.Write(bundleInfoBytesCom);
}
writer.Position = 0;
newHeader.Write(writer);
if (newHeader.fileVersion >= 7)
{
writer.Align16();
}
return(true);
}
return(false);
}
public bool Pack(AssetsFileReader reader, AssetsFileWriter writer, AssetBundleCompressionType compType)
{
reader.Position = 0;
writer.Position = 0;
if (Read(reader, false))
{
AssetBundleHeader06 newHeader = new AssetBundleHeader06()
{
signature = bundleHeader6.signature,
fileVersion = bundleHeader6.fileVersion,
minPlayerVersion = bundleHeader6.minPlayerVersion,
fileEngineVersion = bundleHeader6.fileEngineVersion,
totalFileSize = 0,
compressedSize = 0,
decompressedSize = 0,
flags = 0x43
};
AssetBundleBlockAndDirectoryList06 newBlockAndDirList = new AssetBundleBlockAndDirectoryList06()
{
checksumLow = 0,
checksumHigh = 0,
blockCount = 0,
blockInf = null,
directoryCount = bundleInf6.directoryCount,
dirInf = bundleInf6.dirInf
};
List <AssetBundleBlockInfo06> newBlocks = new List <AssetBundleBlockInfo06>();
reader.Position = bundleHeader6.GetFileDataOffset();
int fileDataLength = (int)(bundleHeader6.totalFileSize - reader.Position);
byte[] fileData = reader.ReadBytes(fileDataLength);
//todo, we just write everything to memory and then write to file
//we could calculate the blocks we need ahead of time and correctly
//size the block listing before this so we can write directly to file
byte[] compressedFileData;
switch (compType)
{
case AssetBundleCompressionType.LZMA:
{
compressedFileData = SevenZipHelper.Compress(fileData);
newBlocks.Add(new AssetBundleBlockInfo06()
{
compressedSize = (uint)compressedFileData.Length,
decompressedSize = (uint)fileData.Length,
flags = 0x41
});
break;
}
case AssetBundleCompressionType.LZ4:
{
using (var memStreamCom = new MemoryStream())
using (var binaryWriter = new BinaryWriter(memStreamCom))
{
using (var memStreamUnc = new MemoryStream(fileData))
using (var binaryReader = new BinaryReader(memStreamUnc))
{
//compress into 0x20000 blocks
byte[] uncompressedBlock = binaryReader.ReadBytes(131072);
while (uncompressedBlock.Length != 0)
{
byte[] compressedBlock = LZ4Codec.Encode32HC(uncompressedBlock, 0, uncompressedBlock.Length);
if (compressedBlock.Length > uncompressedBlock.Length)
{
newBlocks.Add(new AssetBundleBlockInfo06()
{
compressedSize = (uint)uncompressedBlock.Length,
decompressedSize = (uint)uncompressedBlock.Length,
flags = 0x0
});
binaryWriter.Write(uncompressedBlock);
}
else
{
newBlocks.Add(new AssetBundleBlockInfo06()
{
compressedSize = (uint)compressedBlock.Length,
decompressedSize = (uint)uncompressedBlock.Length,
flags = 0x3
});
binaryWriter.Write(compressedBlock);
}
uncompressedBlock = binaryReader.ReadBytes(131072);
}
}
compressedFileData = memStreamCom.ToArray();
}
break;
}
case AssetBundleCompressionType.NONE:
{
compressedFileData = fileData;
newBlocks.Add(new AssetBundleBlockInfo06()
{
compressedSize = (uint)fileData.Length,
decompressedSize = (uint)fileData.Length,
flags = 0x00
});
break;
}
default:
{
return(false);
}
}
newBlockAndDirList.blockInf = newBlocks.ToArray();
byte[] bundleInfoBytes;
using (var memStream = new MemoryStream())
{
var afw = new AssetsFileWriter(memStream);
newBlockAndDirList.Write(afw);
bundleInfoBytes = memStream.ToArray();
}
if (bundleInfoBytes == null || bundleInfoBytes.Length == 0)
{
return(false);
}
//listing is usually lz4 even if the data blocks are lzma
byte[] bundleInfoBytesCom = LZ4Codec.Encode32HC(bundleInfoBytes, 0, bundleInfoBytes.Length);
byte[] bundleHeaderBytes = null;
using (var memStream = new MemoryStream())
{
var afw = new AssetsFileWriter(memStream);
newHeader.Write(afw);
bundleHeaderBytes = memStream.ToArray();
}
if (bundleHeaderBytes == null || bundleHeaderBytes.Length == 0)
{
return(false);
}
uint totalFileSize = (uint)(bundleHeaderBytes.Length + bundleInfoBytesCom.Length + compressedFileData.Length);
newHeader.totalFileSize = totalFileSize;
newHeader.decompressedSize = (uint)bundleInfoBytes.Length;
newHeader.compressedSize = (uint)bundleInfoBytesCom.Length;
newHeader.Write(writer);
if (newHeader.fileVersion >= 7)
{
writer.Align16();
}
writer.Write(bundleInfoBytesCom);
writer.Write(compressedFileData);
return(true);
}
return(false);
}
public static bool IsAssetsFile(string filePath)
{
using AssetsFileReader reader = new AssetsFileReader(filePath);
return(IsAssetsFile(reader, 0, reader.BaseStream.Length));
}
public override bool Init(AssetBundleFile bundleFile, AssetsFileReader entryReader, long entryPos, long entrySize)
{
return(true);
}
public bool Read(AssetsFileReader reader)
{
header = new ClassDatabaseFileHeader();
header.Read(reader);
if (header.header != "cldb" ||
(header.fileVersion != 4 && header.fileVersion != 3 && header.fileVersion != 1))
{
valid = false;
return(valid);
}
classes = new List <ClassDatabaseType>();
long classTablePos = reader.Position;
AssetsFileReader newReader = reader;
if (header.compressionType != 0)
{
classTablePos = 0;
MemoryStream ms;
if (header.compressionType == 1) //lz4
{
byte[] uncompressedBytes = new byte[header.uncompressedSize];
using (MemoryStream tempMs = new MemoryStream(reader.ReadBytes((int)header.compressedSize)))
{
Lz4DecoderStream decoder = new Lz4DecoderStream(tempMs);
decoder.Read(uncompressedBytes, 0, (int)header.uncompressedSize);
decoder.Dispose();
}
ms = new MemoryStream(uncompressedBytes);
}
else if (header.compressionType == 2) //lzma
{
using (MemoryStream tempMs = new MemoryStream(reader.ReadBytes((int)header.compressedSize)))
{
ms = SevenZipHelper.StreamDecompress(tempMs);
}
}
else
{
valid = false;
return(valid);
}
newReader = new AssetsFileReader(ms);
newReader.bigEndian = false;
}
newReader.Position = header.stringTablePos;
stringTable = newReader.ReadBytes((int)header.stringTableLen);
newReader.Position = classTablePos;
uint size = newReader.ReadUInt32();
for (int i = 0; i < size; i++)
{
ClassDatabaseType cdt = new ClassDatabaseType();
cdt.Read(newReader, header.fileVersion, header.flags);
classes.Add(cdt);
}
valid = true;
return(valid);
}