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Chizuui
2025-11-27 06:42:57 +07:00
parent 7ef1566d15
commit 051cb4f3e8
22 changed files with 1813 additions and 2 deletions
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95
BeyondTools.VFS/VFBlockMainInfo.cs Normal file
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using System.Buffers.Binary;
using System.Runtime.InteropServices;
using System.Text;
namespace BeyondTools.VFS
{
public class VFBlockMainInfo
{
public VFBlockMainInfo(byte[] bytes, int offset = 0)
{
version = BinaryPrimitives.ReadInt32LittleEndian(bytes.AsSpan(offset));
offset += sizeof(int);
// TODO: CRC and stuff idk
offset += 12;
ushort groupCfgNameLength = BinaryPrimitives.ReadUInt16LittleEndian(bytes.AsSpan(offset));
offset += sizeof(ushort);
groupCfgName = Encoding.UTF8.GetString(bytes.AsSpan(offset, groupCfgNameLength));
offset += groupCfgNameLength;
groupCfgHashName = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
groupFileInfoNum = BinaryPrimitives.ReadInt32LittleEndian(bytes.AsSpan(offset));
offset += sizeof(int);
groupChunksLength = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
blockType = (EVFSBlockType)bytes[offset++];
var chunkCount = BinaryPrimitives.ReadInt32LittleEndian(bytes.AsSpan(offset));
allChunks = GC.AllocateUninitializedArray<FVFBlockChunkInfo>(chunkCount);
offset += sizeof(int);
foreach (ref var chunk in allChunks.AsSpan())
{
chunk.md5Name = BinaryPrimitives.ReadUInt128LittleEndian(bytes.AsSpan(offset));
offset += Marshal.SizeOf<UInt128>();
chunk.contentMD5 = BinaryPrimitives.ReadUInt128LittleEndian(bytes.AsSpan(offset));
offset += Marshal.SizeOf<UInt128>();
chunk.length = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
chunk.blockType = (EVFSBlockType)bytes[offset++];
var fileCount = BinaryPrimitives.ReadInt32LittleEndian(bytes.AsSpan(offset));
chunk.files = GC.AllocateUninitializedArray<FVFBlockFileInfo>(fileCount);
offset += sizeof(int);
foreach (ref var file in chunk.files.AsSpan())
{
ushort fileNameLength = BinaryPrimitives.ReadUInt16LittleEndian(bytes.AsSpan(offset));
offset += sizeof(ushort);
file.fileName = Encoding.UTF8.GetString(bytes.AsSpan(offset, fileNameLength));
offset += fileNameLength;
file.fileNameHash = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
file.fileChunkMD5Name = BinaryPrimitives.ReadUInt128LittleEndian(bytes.AsSpan(offset));
offset += Marshal.SizeOf<UInt128>();
file.fileDataMD5 = BinaryPrimitives.ReadUInt128LittleEndian(bytes.AsSpan(offset));
offset += Marshal.SizeOf<UInt128>();
file.offset = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
file.len = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
file.blockType = (EVFSBlockType)bytes[offset++];
file.bUseEncrypt = Convert.ToBoolean(bytes[offset++]);
if (file.bUseEncrypt)
{
file.ivSeed = BinaryPrimitives.ReadInt64LittleEndian(bytes.AsSpan(offset));
offset += sizeof(long);
}
}
}
}
public int version;
public string groupCfgName;
public long groupCfgHashName;
public int groupFileInfoNum;
public long groupChunksLength;
public EVFSBlockType blockType;
public FVFBlockChunkInfo[] allChunks;
}
}