Switch-Toolbox/File_Format_Library/FileFormats/Archives/GFA.cs

296 lines
10 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Toolbox;
using System.Windows.Forms;
using Toolbox.Library;
using Toolbox.Library.IO;
using System.IO;
using VGAudio.Utilities;
namespace FirstPlugin
{
public class GFA : IArchiveFile, IFileFormat
{
public FileType FileType { get; set; } = FileType.Archive;
public bool CanSave { get; set; }
public string[] Description { get; set; } = new string[] { "Good Feel Archive" };
public string[] Extension { get; set; } = new string[] { "*.gfa" };
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; } = true;
public bool CanDeleteFiles { get; set; }
public bool Identify(System.IO.Stream stream)
{
using (var reader = new Toolbox.Library.IO.FileReader(stream, true))
{
return reader.CheckSignature(4, "GFAC");
}
}
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 uint Unknown1;
private uint Version;
public void Load(System.IO.Stream stream)
{
using (var reader = new FileReader(stream))
{
reader.ByteOrder = Syroot.BinaryData.ByteOrder.LittleEndian;
reader.ReadSignature(4, "GFAC");
Unknown1 = reader.ReadUInt32();
Version = reader.ReadUInt32();
uint FileInfoOffset = reader.ReadUInt32();
uint FileInfoSize = reader.ReadUInt32();
uint DataOffset = reader.ReadUInt32();
uint DataSize = reader.ReadUInt32();
byte[] Padding = reader.ReadBytes(0x10); //Not sure
reader.SeekBegin(FileInfoOffset);
uint FileCount = reader.ReadUInt32();
for (int i = 0; i < FileCount; i++)
{
var file = new FileEntry();
file.Read(reader);
files.Add(file);
}
reader.SeekBegin(DataOffset);
reader.ReadSignature(4, "GFCP");
uint VersionGFCP = reader.ReadUInt32();
uint CompressionType = reader.ReadUInt32();
uint DecompressedSize = reader.ReadUInt32();
uint CompressedSize = reader.ReadUInt32();
byte[] input = reader.ReadBytes((int)CompressedSize);
if (CompressionType == 1) input = BPE.Decompress(input, DecompressedSize, CompressedSize);
if (CompressionType == 2) input = LZ77_WII.Decompress(input);
if (CompressionType == 3) input = LZ77_WII.Decompress(input); //same as 2
using (var r = new FileReader(input))
{
for (int i = 0; i < FileCount; i++)
{
r.SeekBegin(files[i].Offset - DataOffset);
files[i].FileData = r.ReadBytes((int)files[i].Size);
}
}
}
}
public void Unload()
{
}
public void Save(System.IO.Stream stream)
{
using (var writer = new FileWriter(stream, true))
{
writer.ByteOrder = Syroot.BinaryData.ByteOrder.LittleEndian;
writer.WriteSignature("GFAC");
writer.Write(Unknown1);
writer.Write(Version);
writer.Write(uint.MaxValue); //Info offset for later
writer.Write(uint.MaxValue); //Info size for later
writer.Write(uint.MaxValue); //Data offset for later
writer.Write(uint.MaxValue); //Data size for later
writer.Write(new byte[0x10]); //Padding
writer.WriteUint32Offset(12); //Save info offset
writer.Write(files.Count);
/* //Save info
for (int i = 0; i < files.Count; i++)
files[i].Write(writer);
//Save strings and offsets
for (int i = 0; i < files.Count; i++)
files[i].Write(writer);
writer.Write(new uint[files.Count]); //Save space for offsets
for (int i = 0; i < files.Count; i++)
writer.Write(files[i].FileData.Length);
*/
}
}
private void Align(FileWriter writer, int alignment)
{
var startPos = writer.Position;
long position = writer.Seek((-writer.Position % alignment + alignment) % alignment, System.IO.SeekOrigin.Current);
writer.Seek(startPos, System.IO.SeekOrigin.Begin);
while (writer.Position != position)
{
writer.Write((byte)0x30);
}
}
public bool AddFile(ArchiveFileInfo archiveFileInfo)
{
return false;
}
public bool DeleteFile(ArchiveFileInfo archiveFileInfo)
{
return false;
}
public class FileEntry : ArchiveFileInfo
{
public uint Hash { get; set; }
public uint Offset { get; set; }
public uint Size { get; set; }
public void Read(FileReader reader)
{
Hash = reader.ReadUInt32();
FileName = GetName(reader);
Size = reader.ReadUInt32();
Offset = reader.ReadUInt32();
}
}
private static string GetName(FileReader reader)
{
uint Offset = reader.ReadUInt32();
using (reader.TemporarySeek(Offset & 0x00ffffff, System.IO.SeekOrigin.Begin))
{
return reader.ReadZeroTerminatedString();
}
}
class BPE
{
//Decompiled from MasterF0X tool for BPE decompression
static int index = 0;
static bool end = false;
public static byte[] Decompress(byte[] input, uint decompressedSize, uint cs)
{
char[] chArray1 = new char[16777215];
char[] chArray2 = new char[16777215];
char[] chArray3 = new char[16777215];
var mem = new MemoryStream();
BinaryWriter binaryWriter = new BinaryWriter(mem);
label_26:
int num1;
int num2;
while (index < input.Length)
{
if (end)
{
binaryWriter.Close();
end = false;
index = 0;
num1 = 0;
num2 = 0;
return mem.ToArray();
}
for (int index = 0; index < 256; ++index)
chArray1[index] = (char)index;
int num3 = (int)getc(input, cs);
int index1 = 0;
while (true)
{
if (num3 > (int)sbyte.MaxValue)
{
index1 += num3 - (int)sbyte.MaxValue;
num3 = 0;
}
if (index1 != 256)
{
int num4 = 0;
while (num4 <= num3)
{
chArray1[index1] = getc(input, cs);
if (index1 != (int)chArray1[index1])
chArray2[index1] = getc(input, cs);
++num4;
++index1;
}
if (index1 != 256)
num3 = (int)getc(input, cs);
else
break;
}
else
break;
}
int num5 = 256 * (int)getc(input, cs) + (int)getc(input, cs);
int num6 = 0;
while (true)
{
int index2;
if (num6 > 0)
index2 = (int)chArray3[--num6];
else if (num5-- != 0)
index2 = (int)getc(input, cs);
else
goto label_26;
if (index2 == (int)chArray1[index2])
{
binaryWriter.Write((byte)index2);
}
else
{
char[] chArray4 = chArray3;
int index3 = num6;
int num7 = index3 + 1;
int num8 = (int)chArray2[index2];
chArray4[index3] = (char)num8;
char[] chArray5 = chArray3;
int index4 = num7;
num6 = index4 + 1;
int num9 = (int)chArray1[index2];
chArray5[index4] = (char)num9;
}
}
}
binaryWriter.Close();
end = false;
index = 0;
num1 = 0;
num2 = 0;
return mem.ToArray();
}
static char getc(byte[] input, uint uncompS)
{
if (index >= uncompS)
{
end = true;
return '0';
}
char ch = (char)input[index];
++index;
return ch;
}
}
}
}