public override NDArrayOrSymbol Forward(NDArrayOrSymbol x, NDArrayOrSymbol[] args)
{
if (x.IsNDArray)
{
return(CallCachedOp(args.ToList().ToNDArrays())[0]);
}
int[] in_fmt = null;
var inputs = new List <NDArrayOrSymbol>();
inputs.Add(x);
inputs.AddRange(args);
(args, in_fmt) = Flatten(inputs.ToArray(), "input");
if (in_fmt != _in_format.ToArray())
{
throw new Exception("Invalid input format");
}
var ret = _cached_graph.Value.Item2.Shallowcopy();
SymbolDict composeArgs = new SymbolDict();
for (int i = 0; i < _cached_graph.Value.Item1.Length; i++)
{
composeArgs.Add(_cached_graph.Value.Item1[0].Name, args[i]);
}
ret.Compose(composeArgs);
return(Regroup(new List <NDArrayOrSymbol[]>()
{
new NDArrayOrSymbol[] { ret }
}, _out_format.ToList()).Item1[0]);
}
/// <summary>
/// Reads directory of ZipFiles.
/// </summary>
/// <param name="streams">FileStreams of zip container.</param>
/// <param name="cd_diskId">Id of central directory in streams.</param>
/// <param name="cd_offset">Offset of central directory in stream.</param>
/// <param name="numberOfEntries">Number of entries in central directory.</param>
private void ReadZipCentralDirectoryFileHeaders(FileStream[] streams, int cd_diskId, long cd_offset, int numberOfEntries)
{
var mainFileStream = streams[cd_diskId];
mainFileStream.Seek(cd_offset, SeekOrigin.Begin);
//Deserialize stream data according to number of Entries
for (uint i = 0; i < numberOfEntries; i++)
{
var cd_fileHeader = new TZipCentralDirectoryFileHeader();
cd_fileHeader.Load(mainFileStream);
// is file or directory?
var fileName = SanitizeFilename(cd_fileHeader.filename);
if (fileName.Last() != '\\')
{
m_Files.Add(fileName,
new SubFileHeader()
{
ZipFileIndex = cd_fileHeader.diskStart,
CompressedSize = (long)cd_fileHeader.sizeComp,
UncompressedSize = (long)cd_fileHeader.sizeUncomp,
LocalHeaderOffset = (long)cd_fileHeader.hdrRelOffset,
LocalHeaderSize = 0
});
}
else
{
this.m_Directories.Add(fileName.Substring(0, cd_fileHeader.filename.Length - 1));
}
}
}
