internal static void DetectFileTypes(ArcView file, List <Entry> dir)
{
byte[] signature_buffer = new byte[4];
foreach (PackedEntry entry in dir)
{
uint signature;
if (entry.IsPacked)
{
using (var input = file.CreateStream(entry.Offset, Math.Min(entry.Size, 0x20u)))
using (var reader = new ShsCompression(input))
{
reader.Unpack(signature_buffer);
signature = LittleEndian.ToUInt32(signature_buffer, 0);
}
}
else
{
signature = file.View.ReadUInt32(entry.Offset);
}
if (0x78534444 == signature) // 'DDSx'
{
entry.Type = "script";
entry.Name = Path.ChangeExtension(entry.Name, "hxb");
}
else if (0 != signature)
{
IResource res;
if (0x020000 == signature || 0x0A0000 == signature)
{
res = ImageFormat.Tga;
}
else
{
res = AutoEntry.DetectFileType(signature);
}
if (res != null)
{
entry.ChangeType(res);
}
}
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream(entry.Offset, entry.Size);
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
{
return(input);
}
var data = new byte[pent.UnpackedSize];
using (var reader = new ShsCompression(input))
{
reader.Unpack(data);
if (data.Length > 16 && Binary.AsciiEqual(data, 0, "DDSxHXB"))
{
DecryptHxb(data);
}
return(new BinMemoryStream(data, entry.Name));
}
}