ConvertFunctors.hpp

/*
 *  Copyright 2011, 2012 Lukas Jirkovsky
 *
 *  This file is part of FotoSHOCKcore.
 *
 *  FotoSHOCKcore is free software: you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, version 3 of the License.
 *
 *  FotoSHOCKcore 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with FotoSHOCKcore.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef CONVERTFUNCTORS_H
#define CONVERTFUNCTORS_H

#include "PixelData.hpp"

#include <lcms2.h>

namespace FotoSHOCKcore {


class ConvertColorSpaceFunctor {
    public:

        ConvertColorSpaceFunctor(const PixelData& in, const PixelData& out,
                       cmsUInt32Number intent);
        ConvertColorSpaceFunctor(const ConvertColorSpaceFunctor& other);
        ~ConvertColorSpaceFunctor();
        void operator()(const void* in, void* out);
    private:
        cmsHTRANSFORM transform;

        // do not allow assignment
        void operator=(const ConvertColorSpaceFunctor& other);
};

template <typename PixelFormatIn, typename PixelFormatOut>
class ConvertValueTypeFunctor {
    public:
        ConvertValueTypeFunctor(unsigned int bands) : m_bands(bands) {};
        void operator()(PixelFormatIn* in, PixelFormatOut* out) {
            for (unsigned int i = 0; i < m_bands; i++) {
                out[i] = (PixelFormatOut) in[i];
            }
        }
    private:
        const unsigned int m_bands;
};

}

#endif