apply.hh

// Copyright (C) 2007, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, version 2 of the License.
//
// Olena is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#ifndef MLN_DATA_APPLY_HH
# define MLN_DATA_APPLY_HH

# include <mln/core/concept/image.hh>
# include <mln/core/concept/function.hh>

// Specializations are in:
# include <mln/data/apply.spe.hh>


namespace mln
{

  namespace data
  {

    template <typename I, typename F>
    void apply(Image<I>& input, const Function_v2v<F>& f);



# ifndef MLN_INCLUDE_ONLY

    namespace impl
    {

      namespace generic
      {

        template <typename I, typename F>
        inline
        void apply_(I& input, const F& f)
        {
          trace::entering("data::impl::generic::apply_");

          mln_piter(I) p(input.domain());
          for_all(p)
            input(p) = f(input(p));

          trace::exiting("data::impl::generic::apply_");
        }

      } // end of namespace mln::data::impl::generic

    } // end of namespace mln::data::impl


    // Facade.

    template <typename I, typename F>
    inline
    void apply(Image<I>& input, const Function_v2v<F>& f)
    {
      trace::entering("data::apply");

      mln_precondition(exact(input).is_valid());
      impl::apply_(mln_trait_image_speed(I)(), exact(input),
                   exact(f));

      trace::exiting("data::apply");
    }

# endif // ! MLN_INCLUDE_ONLY

  } // end of namespace mln::data

} // end of namespace mln


#endif // ! MLN_DATA_APPLY_HH