Source2Roblox/Roblox-File-Format
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Catch up, several fixes and QoL.

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This commit is contained in:
Max
2022-12-16 14:22:34 -06:00
parent 619b89d2a9
commit 1a86e670ca
18 changed files with 1137 additions and 1007 deletions
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32
BinaryFormat/BinaryFileChunk.cs
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@ -1,7 +1,10 @@
using System;
using System.IO;
using System.Text;
using System.IO.Compression;
using LZ4;
using ZstdSharp;
namespace RobloxFiles.BinaryFormat
{
@ -44,7 +47,34 @@ namespace RobloxFiles.BinaryFormat
if (HasCompressedData)
{
CompressedData = reader.ReadBytes(CompressedSize);
Data = LZ4Codec.Decode(CompressedData, 0, CompressedSize, Size);
Data = new byte[Size];
using (var compStream = new MemoryStream(CompressedData))
{
Stream decompStream = null;
if (CompressedData[0] >= 0xF0)
{
// Probably LZ4
decompStream = new LZ4Stream(compStream, CompressionMode.Decompress);
}
else if (CompressedData[0] == 0x78 || CompressedData[0] == 0x58)
{
// Probably zlib
decompStream = new DeflateStream(compStream, CompressionMode.Decompress);
}
else if (BitConverter.ToString(CompressedData, 1, 3) == "B5-2F-FD")
{
// Probably zstd
decompStream = new DecompressionStream(compStream);
}
if (decompStream == null)
throw new Exception("Unsupported compression scheme!");
decompStream.Read(Data, 0, Size);
decompStream.Dispose();
}
}
else
{