public static IArchiveFileInfo CreateAfi(Stream file, string fileName, IMtEntry entry, MtArcPlatform mtArcPlatform)
{
if (entry.CompSize == entry.GetDecompressedSize(mtArcPlatform))
{
return(new MtArchiveFileInfo(file, fileName, entry));
}
var compMagic = file.ReadByte();
if ((compMagic & 0xF) != 8 || (compMagic & 0xF0) > 0x70)
{
throw new InvalidOperationException("File is marked as compressed but doesn't use ZLib.");
}
return(new MtArchiveFileInfo(file, fileName, entry, Kompression.Implementations.Compressions.ZLib, entry.GetDecompressedSize(mtArcPlatform)));
}
private IArchiveFileInfo CreateAfi(Stream file, string fileName, IMtEntry entry, Platform platform)
{
// It seems every file is compressed with ZLib on Switch
// Example file game.arc contains of at least one file "om120a" where compressed and uncompressed size are equal but the file is still compressed
// the decompressed file is really the same size; comparing with other entries no clear differences were found, that would indicate a
// compression flag
if (platform == Platform.SWITCH)
{
return(new MtArchiveFileInfo(file, fileName, entry, Kompression.Implementations.Compressions.ZLib, entry.GetDecompressedSize(platform)));
}
if (entry.CompSize != entry.GetDecompressedSize(platform))
{
if (file.ReadByte() != 0x78)
{
throw new InvalidOperationException("File is marked as compressed but doesn't use ZLib.");
}
return(new MtArchiveFileInfo(file, fileName, entry, Kompression.Implementations.Compressions.ZLib, entry.GetDecompressedSize(platform)));
}
return(new MtArchiveFileInfo(file, fileName, entry));
}
