private int Disassemble(DisassembleOptions options)
{
string path = Path.GetFullPath(options.FileName);
if (!File.Exists(path))
{
PrintError("File does not exist: " + path);
return(2);
}
FileStream stream = new FileStream(path, FileMode.Open, FileAccess.Read);
AcsFormat format = AcsFormatIdentifier.IdentifyFormat(stream);
if (format == AcsFormat.NotAcs)
{
stream.Dispose();
PrintError(path + " is not an ACS file!");
return(3);
}
Console.WriteLine("Detected format: " + format);
string outputPath = Path.GetFullPath(options.OutputFile);
if (File.Exists(outputPath))
{
File.Delete(outputPath);
}
FileStream outputStream = new FileStream(outputPath, FileMode.OpenOrCreate, FileAccess.Write);
AcsFile file = new AcsFile(stream, format);
file.Disassemble(outputStream);
outputStream.Dispose();
stream.Dispose();
return(0);
}
public AcsFile(Stream stream, AcsFormat format)
{
InputStream = stream;
Format = format;
stream.Seek(4, SeekOrigin.Begin);
BinaryReader reader = new BinaryReader(InputStream);
int dirOffset = reader.ReadInt32();
if (format == AcsFormat.ZDoomLower || format == AcsFormat.ZDoomUpper)
{
byte[] sig = new byte[4];
stream.Seek(dirOffset - 4, SeekOrigin.Begin);
reader.Read(sig, 0, 4);
if (sig[0] == 'A' && sig[1] == 'C' && sig[2] == 'S' && (sig[3] == 'E' || sig[3] == 'e'))
{
HexenFaked = true;
stream.Seek(dirOffset - 8, SeekOrigin.Begin);
dirOffset = reader.ReadInt32();
}
}
stream.Seek(dirOffset, SeekOrigin.Begin);
DirOffset = dirOffset;
if (format == AcsFormat.Acs95)
{
ReadAcs95(ref reader);
}
else
{
ReadZDoomAcs(ref reader);
}
reader.Dispose();
}
