public const uint KARK = 1263681867; // 0x4b, 0x41, 0x52, 0x4b
public static bool Load()
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
// try get oodle dll from game
if (TryCopyOodleLib())
{
var result = OodleLib.Load(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "oo2ext_7_win64.dll"));
if (result)
{
CompressionSettings.Get().CompressionLevel = CompressionLevel.Optimal2;
CompressionSettings.Get().UseOodle = true;
return(true);
}
}
return(true);
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return(true);
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
return(true);
}
throw new NotImplementedException();
}
public static long Decompress(byte[] inputBuffer, byte[] outputBuffer)
{
var result = 0;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
result = CompressionSettings.Get().UseOodle
? OodleLib.OodleLZ_Decompress(inputBuffer, outputBuffer)
: KrakenNative.Decompress(inputBuffer, outputBuffer);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
result = KrakenNative.Decompress(inputBuffer, outputBuffer);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
result = OozNative.Kraken_Decompress(inputBuffer, outputBuffer);
}
else
{
throw new NotImplementedException();
}
return(result);
}
public static Status CompressBuffer(byte[] rawBuf, out byte[] compBuf)
{
if (rawBuf.Length > 256)
{
//var compressedBufferSizeNeeded = GetCompressedBufferSizeNeeded(rawBuf.Length);
//var compressedBuffer = new byte[compressedBufferSizeNeeded];
IEnumerable <byte> compressedBuffer = new List <byte>();
var compressedSize = Oodle.Compress(rawBuf, ref compressedBuffer, false, CompressionSettings.Get().CompressionLevel);
var outArray = new byte[compressedSize + 8];
Array.Copy(BitConverter.GetBytes(KARK), 0, outArray, 0, 4);
Array.Copy(BitConverter.GetBytes(rawBuf.Length), 0, outArray, 4, 4);
Array.Copy(compressedBuffer.ToArray(), 0, outArray, 8, compressedSize);
if (rawBuf.Length > outArray.Length)
{
compBuf = outArray;
return(Status.Compressed);
}
}
compBuf = rawBuf;
return(Status.Uncompressed);
}
public const uint KARK = 1263681867; // 0x4b, 0x41, 0x52, 0x4b
public static bool Load()
{
// try get oodle dll from game
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var result = false;
if (TryCopyOodleLib())
{
result = OodleLib.Load(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "oo2ext_7_win64.dll"));
if (result)
{
CompressionSettings.Get().CompressionLevel = CompressionLevel.Optimal2;
CompressionSettings.Get().UseOodle = true;
return(true);
}
}
// try load Kraken
result = KrakenLib.Load();
if (result)
{
return(true);
}
Log.Error("Could not automatically find oo2ext_7_win64.dll. " +
"Please manually copy and paste the DLL found in <gamedir>\\Cyberpunk 2077\\bin\\x64\\oo2ext_7_win64.dll into this folder: " +
$"{AppDomain.CurrentDomain.BaseDirectory}.");
return(false);
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return(KrakenLib.Load());
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
}
throw new NotImplementedException();
}
public static int Compress(byte[] inputBuffer, ref IEnumerable <byte> outputBuffer, bool useRedHeader,
CompressionLevel level = CompressionLevel.Normal, Compressor compressor = Compressor.Kraken)
{
if (inputBuffer == null)
{
throw new ArgumentNullException(nameof(inputBuffer));
}
var inputCount = inputBuffer.Length;
if (inputCount <= 0 || inputCount > inputBuffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(inputCount));
}
if (outputBuffer == null)
{
throw new ArgumentNullException(nameof(outputBuffer));
}
var result = 0;
var compressedBufferSizeNeeded = Oodle.GetCompressedBufferSizeNeeded(inputCount);
var compressedBuffer = new byte[compressedBufferSizeNeeded];
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
result = CompressionSettings.Get().UseOodle
? OodleLib.OodleLZ_Compress(inputBuffer, compressedBuffer, compressor, level)
: KrakenNative.Compress(inputBuffer, compressedBuffer, (int)level);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
result = KrakenNative.Compress(inputBuffer, compressedBuffer, (int)level);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
result = OozNative.Kraken_Compress(inputBuffer, compressedBuffer, (int)level);
}
else
{
throw new NotImplementedException();
}
if (result == 0 || inputCount <= (result + 8))
{
outputBuffer = inputBuffer;
return(outputBuffer.Count());
}
if (useRedHeader)
{
// write KARK header
var writelist = new List <byte>()
{
0x4B, 0x41, 0x52, 0x4B //KARK, TODO: make this dependent on the compression algo
};
// write size
writelist.AddRange(BitConverter.GetBytes(inputCount));
// write compressed data
writelist.AddRange(compressedBuffer.Take(result));
outputBuffer = writelist;
}
else
{
outputBuffer = compressedBuffer.Take(result);
}
return(outputBuffer.Count());
}