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Switch-Toolbox/File_Format_Library/FileFormats/DKCTF/PAK.cs

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6.6 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.InteropServices;
using Toolbox.Library;
using Toolbox.Library.IO;
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namespace DKCTF
{
public class PAK : TreeNodeFile, IArchiveFile, IFileFormat, ILeaveOpenOnLoad
{
public FileType FileType { get; set; } = FileType.Layout;
public bool CanSave { get; set; }
public string[] Description { get; set; } = new string[] { "DKCTF Archive" };
public string[] Extension { get; set; } = new string[] { "*.pak" };
public string FileName { get; set; }
public string FilePath { get; set; }
public IFileInfo IFileInfo { get; set; }
public bool CanAddFiles { get; set; }
public bool CanRenameFiles { get; set; }
public bool CanReplaceFiles { get; set; }
public bool CanDeleteFiles { get; set; }
public bool Identify(System.IO.Stream stream)
{
using (var reader = new Toolbox.Library.IO.FileReader(stream, true))
{
bool IsForm = reader.CheckSignature(4, "RFRM");
bool FormType = reader.CheckSignature(4, "PACK", 20);
return IsForm && FormType;
}
}
public Type[] Types
{
get
{
List<Type> types = new List<Type>();
return types.ToArray();
}
}
public List<FileEntry> files = new List<FileEntry>();
public IEnumerable<ArchiveFileInfo> Files => files;
public void ClearFiles() { files.Clear(); }
private PakHeader Header;
private List<DirectoryAssetEntry> Directories = new List<DirectoryAssetEntry>();
private List<MetaOffsetEntry> MetaOffsets = new List<MetaOffsetEntry>();
private List<CNameTagEntry> FileNameEntries = new List<CNameTagEntry>();
public void Load(System.IO.Stream stream)
{
Directories.Clear();
MetaOffsets.Clear();
FileNameEntries.Clear();
using (var reader = new FileReader(stream, true))
{
reader.SetByteOrder(true);
Header = reader.ReadStruct<PakHeader>();
var ADIRChunk = reader.ReadStruct<CChunkDescriptor>();
ReadAssetDirectoryChunk(reader, ADIRChunk);
var METAChunk = reader.ReadStruct<CChunkDescriptor>();
ReadMetaChunk(reader, METAChunk);
var STRGChunk = reader.ReadStruct<CChunkDescriptor>();
ReadFileNameChunk(reader, STRGChunk);
}
for (int i = 0; i < Directories.Count; i++)
{
files.Add(new FileEntry()
{
FileData = new byte[0],
FileDataStream = Directories[i].Data,
FileName = Directories[i].Type,
});
/* var file = STFileLoader.OpenFileFormat(subStream, Directories[i].ToString());
if (file != null && file is TreeNodeFile)
{
Nodes.Add((TreeNodeFile)file);
}
else
{
}*/
}
}
private void ReadAssetDirectoryChunk(FileReader reader, CChunkDescriptor chunk)
{
if (chunk.ChunkType != "ADIR")
throw new Exception("Unexpected type! Expected ADIR, got " + chunk.ChunkType);
long pos = reader.Position;
reader.SeekBegin(pos + chunk.DataOffset);
uint numEntries = reader.ReadUInt32();
for (int i = 0; i < numEntries; i++)
{
DirectoryAssetEntry entry = new DirectoryAssetEntry();
entry.Read(reader);
Directories.Add(entry);
}
reader.SeekBegin(pos + chunk.DataSize);
}
private void ReadMetaChunk(FileReader reader, CChunkDescriptor chunk)
{
if (chunk.ChunkType != "META")
throw new Exception("Unexpected type! Expected META, got " + chunk.ChunkType);
long pos = reader.Position;
reader.SeekBegin(pos + chunk.DataOffset);
uint numEntries = reader.ReadUInt32();
for (int i = 0; i < numEntries; i++)
{
MetaOffsetEntry entry = reader.ReadStruct< MetaOffsetEntry>();
MetaOffsets.Add(entry);
}
reader.SeekBegin(pos + chunk.DataSize);
}
private void ReadFileNameChunk(FileReader reader, CChunkDescriptor chunk)
{
if (chunk.ChunkType != "STRG")
throw new Exception("Unexpected type! Expected STRG, got " + chunk.ChunkType);
long pos = reader.Position;
reader.SeekBegin(pos + chunk.DataOffset);
uint numEntries = reader.ReadUInt32();
for (int i = 0; i < numEntries; i++)
{
// CNameTagEntry entry = reader.ReadStruct<CNameTagEntry>();
// FileNameEntries.Add(entry);
}
reader.SeekBegin(pos + chunk.DataSize);
}
public void Unload()
{
}
public void Save(System.IO.Stream stream)
{
}
public bool AddFile(ArchiveFileInfo archiveFileInfo)
{
return false;
}
public bool DeleteFile(ArchiveFileInfo archiveFileInfo)
{
return false;
}
}
public class FileEntry : ArchiveFileInfo
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{
}
public class DirectoryAssetEntry
{
public string Type;
public CObjectId FileID;
public long Offset;
public long Size;
public SubStream Data;
public void Read(FileReader reader)
{
Type = reader.ReadString(4, Encoding.ASCII);
FileID = reader.ReadStruct<CObjectId>();
Offset = reader.ReadInt64();
Size = reader.ReadInt64();
Data = new SubStream(reader.BaseStream, Offset,Size);
}
public override string ToString()
{
return $"{FileID.Guid.Part4.ToString()}.{Type}";
}
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public class MetaOffsetEntry
{
public CObjectTag ObjectTag;
public uint FileOffset;
}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
public class PakHeader
{
CFormDescriptor PackForm;
CFormDescriptor TocForm;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public class CNameTagEntry
{
public CObjectTag ObjectTag;
public string Name;
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}
}