Commit bd9472a7 authored by Guillaume Lazzara's avatar Guillaume Lazzara
Browse files

mln/fun/v2v/rgb8_to_rgbn.hh: Import rgb8 to rgbn conversion function from Yann's sandbox.

parent 33f56371
// Copyright (C) 2010 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_FUN_V2V_RGB8_TO_RGBN_HH
# define MLN_FUN_V2V_RGB8_TO_RGBN_HH
# include <mln/core/concept/function.hh>
# include <mln/value/rgb8.hh>
# include <mln/value/rgb.hh>
# include <mln/core/contract.hh>
/// \file
///
/// \brief Convert rgb8 value to rgbn, n < 8.
namespace mln
{
namespace fun
{
namespace v2v
{
/// \brief Convert a rgb8 value to a rgn, n < 8.
///
/// \param n defines the output quantification used for the transformation.
///
/// \ingroup modfunv2v
//
template <unsigned n>
struct rgb8_to_rgbn : Function_v2v< rgb8_to_rgbn<n> >
{
typedef value::rgb8 argument;
typedef value::rgb<n> result;
/// \brief Convert a rgb8 value to a rgn, n < 8.
///
/// \param[in] v the rgb8 value to convert.
///
/// Conversion is done by computing the size by which we
/// divide each rgb component.
//
result operator()(const argument& c) const;
};
# ifndef MLN_INCLUDE_ONLY
/// \brief Convert a rgb8 value to a rgn, n < 8.
///
/// \param n defines the output quantification used for the transformation.
///
/// \ingroup modfunv2v
//
template <unsigned n>
typename rgb8_to_rgbn<n>::result
rgb8_to_rgbn<n>::operator()(const argument& c) const
{
mln_precondition(8 > n);
unsigned size = pow(2,(8-n));
/*
std::cout << "c : " << c << std::endl;
std::cout << "red : " << c.red() << std::endl;
std::cout << "size : " << size << std::endl;
std::cout << "res : " << (c.red() / size) << std::endl;
std::cout << "max : " << (mln_max(mln::value::int_u<n>))<< std::endl;
*/
result res(c.red() / size, c.green() / size, c.blue() / size);
return res;
}
# endif // ! MLN_INCLUDE_ONLY
} // end of namespace mln::fun::v2v
} // end of namespace mln::fun
} // end of namespace mln
#endif // ! MLN_FUN_V2V_RGB8_TO_RGBN_HH
2010-11-15 Guillaume Lazzara <z@lrde.epita.fr>
Import rgb8 to rgbn conversion function from Yann's sandbox.
* mln/fun/v2v/rgb8_to_rgbn.hh: New.
2010-11-15 Guillaume Lazzara <z@lrde.epita.fr> 2010-11-15 Guillaume Lazzara <z@lrde.epita.fr>
* scribo/core/macros.hh: Remove deprecated macro. * scribo/core/macros.hh: Remove deprecated macro.
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