InterfileImageInputFileFormat.h

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//
//
#ifndef __stir_IO_InterfileImageInputFileFormat_h__
#define __stir_IO_InterfileImageInputFileFormat_h__
/*
    Copyright (C) 2006 - 2007-10-08, Hammersmith Imanet Ltd
    Copyright (C) 2013-01-01 - 2013, Kris Thielemans
    This file is part of STIR.
    SPDX-License-Identifier: Apache-2.0
 
    See STIR/LICENSE.txt for details
*/
#include "stir/IO/InputFileFormat.h"
#include "stir/IO/interfile.h"
#include "stir/utilities.h"
#include "stir/DiscretisedDensity.h"
#include "stir/VoxelsOnCartesianGrid.h"
#include "stir/error.h"
#include "stir/is_null_ptr.h"
 
START_NAMESPACE_STIR


class InterfileImageInputFileFormat : public InputFileFormat<DiscretisedDensity<3, float>>
{
public:
  const std::string get_name() const override { return "Interfile"; }
 
protected:
  bool actual_can_read(const FileSignature& signature, std::istream& input) const override
  {
    //. todo should check if it's an image
    return is_interfile_signature(signature.get_signature());
  }
 
  unique_ptr<data_type> read_from_file(std::istream& input) const override
  {
    unique_ptr<data_type> ret(read_interfile_image(input));
    if (is_null_ptr(ret))
      {
        error("failed to read an Interfile image from stream");
      }
    return ret;
  }
  unique_ptr<data_type> read_from_file(const std::string& filename) const override
  {
    unique_ptr<data_type> ret(read_interfile_image(filename));
    if (is_null_ptr(ret))
      {
        error("failed to read an Interfile image from file \"%s\"", filename.c_str());
      }
    return ret;
  }
};
END_NAMESPACE_STIR
 
#endif