copy_ext.hpp

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/*
 * Copyright(c):
 * Signal Image and Communications (SIC) Department 
 * http://www.sic.sp2mi.univ-poitiers.fr/ 
 *  - University of Poitiers, France http://www.univ-poitiers.fr 
 *  - XLIM  Institute UMR CNRS 7252  http://www.xlim.fr/ 
 * 
 * and 
 * 
 * D2 Fluid, Thermic and Combustion 
 *  - University of Poitiers, France http://www.univ-poitiers.fr 
 *  - PPRIME Institute -  UPR CNRS 3346  http://www.pprime.fr
 *  - ISAE-ENSMA http://www.ensma.fr
 *
 * Contributor(s):
 * The SLIP team,
 * Benoit Tremblais <tremblais_AT_sic.univ-poitiers.fr>,
 * Laurent David <laurent.david_AT_lea.univ-poitiers.fr>, 
 * Ludovic Chatellier <ludovic.chatellier_AT_univ-poitiers.fr>, 
 * Lionel Thomas <lionel.thomas_AT_univ-poitiers.fr>, 
 * Denis Arrivault <arrivault_AT_sic.univ-poitiers.fr>, 
 * Julien Dombre <julien.dombre_AT_univ-poitiers.fr>.
 *
 * Description:
 * The Simple Library of Image Processing (SLIP) is a new image processing 
 * library. It is written in the C++ language following as much as possible 
 * the ISO/ANSI C++ standard. It is consequently compatible with any system  
 * satisfying the ANSI C++ complience. It works on different Unix , Linux ,  
 * Mircrosoft Windows and Mac OS X plateforms. SLIP is a research library that  
 * was created by the Signal, Image and Communications (SIC) departement of  
 * the XLIM, UMR 7252 CNRS Institute in collaboration with the Fluids, Thermic  
 * and Combustion departement of the P', UPR 3346 CNRS Institute of the  
 * University of Poitiers.
 * 
 * The SLIP Library source code has been registered to the APP (French Agency 
 * for the Protection of Programs) by the University of Poitiers and CNRS, 
 * under  registration number IDDN.FR.001.300034.000.S.P.2010.000.21000.

 * http://www.sic.sp2mi.univ-poitiers.fr/slip/
 *
 * This software is governed by the CeCILL-C license under French law and
 * abiding by the rules of distribution of free software.  You can  use, 
 * modify and/ or redistribute the software under the terms of the CeCILL-C 
 * license as circulated by CEA, CNRS and INRIA at the following URL 
 * http://www.cecill.info.
 * As a counterpart to the access to the source code and  rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty  and the software's author,  the holder of the
 * economic rights,  and the successive licensors  have only  limited
 * liability.
 * 
 * In this respect, the user's attention is drawn to the risks associated
 * with loading,  using,  modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean  that it is complicated to manipulate,  and  that  also
 * therefore means  that it is reserved for developers  and  experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systems and/or
 * data to be ensured and,  more generally, to use and operate it in the 
 * same conditions as regards security. 
 *
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL-C license and that you accept its terms.
 */

#ifndef SLIP_COPY_EXT_HPP
#define SLIP_COPY_EXT_HPP


#include <iterator>
#include <cassert>
#include <algorithm>
#include "iterator3d_plane.hpp"
#include "iterator3d_box.hpp"
#include "iterator3d_range.hpp"
#include "iterator2d_box.hpp"
#include "iterator2d_range.hpp"
#include "iterator_types.hpp"



namespace slip
{

  template<typename>
  struct __copy
  {
    template <typename _II, typename _OI>
    static
    void copy(_II first, _II last, _OI output_first)
    {
      std::copy(first,last,output_first);
    }
  };

template<>
struct __copy<std::random_access_iterator_tag>
{
  template <typename _II, typename _OI>
  static
  void copy(_II first, _II last, _OI output_first)
  {
    std::copy(first,last,output_first);
  }

};

template<>
struct __copy<std::random_access_iterator2d_tag>
{
  template <typename _II, typename _OI>
  static
  void copy(_II first, _II last, _OI output_first)
  {
    const size_t rows = static_cast<size_t>((last-first)[0]);
    for(size_t i = 0; i < rows; ++i)
      {
                std::copy(first.row_begin(i),
                                  last.row_end(i),
                                  output_first.row_begin(i));
      }
  }

};

template<>
struct __copy<std::random_access_iterator3d_tag>
{
  template <typename _II, typename _OI>
  static
  void copy(_II first, _II last, _OI output_first)
  {
    const size_t slices = static_cast<size_t>((last-first)[0]);
    const size_t rows   = static_cast<size_t>((last-first)[1]);
    
    for(size_t k = 0; k < slices; ++k)
      {
                for(size_t i = 0; i < rows; ++i)
                  {
                    std::copy(first.row_begin(k,i),
                                      last.row_end(k,i),
                                      output_first.row_begin(k,i));
                  }
      }
  }

};

  template <typename _II, typename _OI>
  void copy(_II first, _II last, _OI output_first)
  {
   typedef typename std::iterator_traits<_II>::iterator_category _Category
;
   __copy<_Category>::copy(first,last,output_first);
   
  }



}//::slip
#endif //SLIP_COPY_EXT