public unsafe static int Main(string[] args)
{
if (args.Length != 3)
{
Console.Error.WriteLine(USAGE);
return(1);
}
if (!new[] { "banner", "icon", "sound" }.Contains(args[1]))
{
Console.Error.WriteLine(USAGE);
return(1);
}
string parent_archive = Path.GetTempFileName();
try {
using (var fs1 = new FileStream(args[0], FileMode.Open, FileAccess.Read))
using (var fs2 = new FileStream(parent_archive, FileMode.Create, FileAccess.Write)) {
fs1.Position = 0x640;
fs1.CopyTo(fs2);
}
using (var parent_node = NodeFactory.FromFile(null, parent_archive)) {
var child_node = parent_node.FindChild($"meta/{args[1]}.bin", false);
CompressionHeader *header = (CompressionHeader *)(child_node.WorkingSource.Address + 0x24);
byte[] buffer = new byte[checked ((int)header->ExpandedSize)];
fixed(byte *ptr = buffer)
{
LZ77.Expand(header, ptr, buffer.Length);
}
File.WriteAllBytes(args[2], buffer);
}
return(0);
} finally {
if (File.Exists(parent_archive))
{
File.Delete(parent_archive);
}
}
}
public static void Expand(CompressionHeader *header, VoidPtr dstAddr, int dstLen)
{
switch (header->Algorithm)
{
case CompressionType.LZ77:
case CompressionType.ExtendedLZ77:
{
LZ77.Expand(header, dstAddr, dstLen);
break;
}
case CompressionType.RunLength:
{
RunLength.Expand(header, dstAddr, dstLen);
break;
}
//case CompressionType.Huffman: { Huffman.Expand(header, dstAddr, dstLen); break; }
//case CompressionType.Differential: { Differential.Expand(header, dstAddr, dstLen); break; }
default:
throw new InvalidCompressionException("Unknown compression type.");
}
}
