image_info.hpp

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//
// (c) Copyright 2011 DESY, Eugen Wintersberger <eugen.wintersberger@desy.de>
//
// This file is part of libpniio.
//
// libpniio 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, either version 2 of the License, or
// (at your option) any later version.
//
// libpniio 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 libpniio.  If not, see <http://www.gnu.org/licenses/>.
// ===========================================================================
//
// Created on: Apr 23, 2012
//     Author: Eugen Wintersberger <eugen.wintersberger@desy.de>
//
//
#pragma once

#include <iostream>
#include <vector>
#include <numeric>

#include <pni/core/types.hpp>
#include <pni/core/error.hpp>
#include "image_channel_info.hpp"

namespace pni{
namespace io{
       
    class image_info
    {
        private:
            size_t _nx;             
            size_t _ny;             
            std::vector<image_channel_info> _channel_info; 
        public:
            //-----------------------------------------------------------------
            image_info():
                _nx(0),
                _ny(0),
                _channel_info(0)
            {}

            //-----------------------------------------------------------------
            image_info(size_t nx,size_t ny);

            //-----------------------------------------------------------------
            image_info(image_info &&i);

            //-----------------------------------------------------------------
            image_info(const image_info &i);

            //-----------------------------------------------------------------
            image_info &operator=(image_info &&i);

            //-----------------------------------------------------------------
            image_info &operator=(const image_info &i);

            //====================general class methods========================
            size_t nx() const { return _nx; }

            //-----------------------------------------------------------------
            size_t ny() const { return _ny; }

            //-----------------------------------------------------------------
            size_t npixels() const { return _nx*_ny;}

            //-----------------------------------------------------------------
            size_t bit_per_pixel() const 
            {
                std::vector<size_t> bpc = bits_per_channel();
                return std::accumulate(bpc.begin(),
                                       bpc.end(),0);
            }
           
            //-----------------------------------------------------------------
            std::vector<size_t> bits_per_channel() const;

            //-----------------------------------------------------------------
            std::vector<pni::core::type_id_t> types_per_channel() const;

            //-----------------------------------------------------------------
            size_t nchannels() const { return _channel_info.size(); }

            //-----------------------------------------------------------------            
            void append_channel(const image_channel_info &i);

            //-----------------------------------------------------------------
            image_channel_info get_channel(size_t i) const;



    };

    std::ostream &operator<<(std::ostream &o,const image_info &i);




//end of namespace
}
}