public static void Decompress(string filename)
{
using (var file = new FileStream("comp1.bin", FileMode.Open))
{
using (var compStream = new ZstandardStream(file, CompressionMode.Decompress, true))
{
using (var fileOut = new FileStream("comp1.bin.dec", FileMode.Create))
{
compStream.CopyStream(fileOut, 0xc1f0);
}
}
}
}
public void ExtractFileIndex(int index, string outDir, IProgressReport progress, StringBuilder sb = null)
{
FileListTab file = Table20.FileList[index];
string name = file.Path.GetText();
DirectoryListTab dir = file.Directory;
DirectoryOffsetTable dirOffset = dir.DirOffset;
FileOffsetTab offsetInfo = file.FileOffset;
bool isLink = false;
long offset = Header.Field10 + dirOffset.Offset + file.FileOffset.Offset * 4;
string path;
if (name != null)
{
path = Path.Combine(outDir, name);
}
else if (file.Parent.HasText())
{
path = Path.Combine(outDir, file.Parent.GetText(), index.ToString());
}
else
{
path = Path.Combine(outDir, "_", index.ToString());
}
if (file.IsLink)
{
isLink = true;
while (file.IsLink)
{
file = file.FileOffset.File;
}
dir = file.Directory;
dirOffset = dir.DirOffset;
offsetInfo = file.FileOffset;
offset = Header.Field10 + dirOffset.Offset + offsetInfo.Offset * 4;
}
if (offsetInfo.Flag3)
{
dirOffset = offsetInfo.LinkedDirOffset;
offsetInfo = offsetInfo.LinkedOffset;
offset = Header.Field10 + dirOffset.Offset + offsetInfo.Offset * 4;
}
//sb?.AppendLine($"{name}, 0x{file.Flags:x2}, 0x{dirOffset.Offset:x}, 0x{file.FileOffset.Offset:x}, 0x{offset:x}, 0x{file.FileOffset.SizeCompressed:x}, 0x{file.FileOffset.Size:x}, 0x{file.FileOffset.Flags:x2}, 0x{file.FileOffset.LinkFileIndex:x}, {file.Flag1}, {file.Flag9}, {file.Flag17}, {file.IsLink}, {file.Flag21}, {file.FileOffset.IsCompressed}, {file.FileOffset.Flag3}, {file.FileOffset.Flag4}, {file.FileOffset.Flag5}, {file.FileOffset.Flag6},");
//return;
try
{
//if (isLink) return;
Directory.CreateDirectory(Path.GetDirectoryName(path));
using (var fileOut = new FileStream(path, FileMode.Create, FileAccess.ReadWrite))
//using (var fileOut = Stream.Null)
{
Stream.Position = offset;
if (offsetInfo.Size == 0)
{
return;
}
if (offsetInfo.SizeCompressed == 0 || offsetInfo.SizeCompressed == offsetInfo.Size)
{
Stream.CopyStream(fileOut, offsetInfo.Size);
}
else
{
using (var compStream = new ZstandardStream(Stream, CompressionMode.Decompress, true))
{
compStream.CopyStream(fileOut, offsetInfo.Size);
}
}
}
sb?.AppendLine($"{name}, 0x{file.Flags:x2}, 0x{dirOffset.Offset:x}, 0x{offsetInfo.Offset:x}, 0x{offset:x}, 0x{offsetInfo.SizeCompressed:x}, 0x{offsetInfo.Size:x}, 0x{offsetInfo.Flags:x2}, 0x{offsetInfo.LinkFileIndex:x}, {file.Flag1}, {file.Flag9}, {file.Flag17}, {file.IsLink}, {file.Flag21}, {offsetInfo.IsCompressed}, {offsetInfo.Flag3}, {offsetInfo.Flag4}, {offsetInfo.Flag5}, {offsetInfo.Flag6}, ");
}
catch (InvalidDataException)
{
progress?.LogMessage($"File index 0x{file.Index:x5} Offset 0x{offset:x9}: Can't decompress {path}");
try
{
File.Delete(path);
sb?.AppendLine($"{name}, 0x{file.Flags:x2}, 0x{dirOffset.Offset:x}, 0x{offsetInfo.Offset:x}, 0x{offset:x}, 0x{offsetInfo.SizeCompressed:x}, 0x{offsetInfo.Size:x}, 0x{offsetInfo.Flags:x2}, 0x{offsetInfo.LinkFileIndex:x}, {file.Flag1}, {file.Flag9}, {file.Flag17}, {file.IsLink}, {file.Flag21}, {offsetInfo.IsCompressed}, {offsetInfo.Flag3}, {offsetInfo.Flag4}, {offsetInfo.Flag5}, {offsetInfo.Flag6}, X");
var badPath = Path.Combine(outDir, "bad", index.ToString());
Directory.CreateDirectory(Path.GetDirectoryName(badPath));
using (var fileOut = new FileStream(badPath, FileMode.Create, FileAccess.ReadWrite))
{
Stream.Position = offset;
var info = file.FileOffset;
if (info.Size == 0)
{
return;
}
Stream.CopyStream(fileOut, info.Size);
}
}
catch (Exception) { }
}
catch (Exception)
{
progress?.LogMessage($"File index 0x{file.Index:x5}: Bad path {path}");
try
{
File.Delete(path);
}
catch (Exception) { }
}
}