rgb.hpp

//
// Copyright 2005-2007 Adobe Systems Incorporated
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
#ifndef BOOST_GIL_RGB_HPP
#define BOOST_GIL_RGB_HPP

#include <boost/gil/metafunctions.hpp>
#include <boost/gil/planar_pixel_iterator.hpp>
#include <boost/gil/detail/mp11.hpp>

#include <cstddef>
#include <type_traits>

namespace boost { namespace gil {


struct red_t {};

struct green_t {};

struct blue_t {};

using rgb_t = mp11::mp_list<red_t, green_t, blue_t>;

using rgb_layout_t = layout<rgb_t>;

using bgr_layout_t = layout<rgb_t, mp11::mp_list_c<int, 2, 1, 0>>;

template <typename IC>
inline
auto planar_rgb_view(
    std::size_t width, std::size_t height,
    IC r, IC g, IC b,
    std::ptrdiff_t rowsize_in_bytes)
    -> typename type_from_x_iterator<planar_pixel_iterator<IC, rgb_t> >::view_t
{
    using view_t = typename type_from_x_iterator<planar_pixel_iterator<IC, rgb_t>>::view_t;

    return view_t(
        width, height,
        typename view_t::locator(
            planar_pixel_iterator<IC, rgb_t>(r, g, b),
            rowsize_in_bytes));
}

}}  // namespace boost::gil

#endif