105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
//
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// Copyright 2005-2007 Adobe Systems Incorporated
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#ifndef BOOST_GIL_CONCEPTS_PIXEL_BASED_HPP
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#define BOOST_GIL_CONCEPTS_PIXEL_BASED_HPP
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#include <boost/gil/concepts/basic.hpp>
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#include <boost/gil/concepts/channel.hpp>
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#include <boost/gil/concepts/color.hpp>
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#include <boost/gil/concepts/concept_check.hpp>
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#include <boost/gil/concepts/fwd.hpp>
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#include <cstddef>
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#if defined(BOOST_CLANG)
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wunknown-pragmas"
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#pragma clang diagnostic ignored "-Wunused-local-typedefs"
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#endif
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#if defined(BOOST_GCC) && (BOOST_GCC >= 40900)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
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#endif
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namespace boost { namespace gil {
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/// \ingroup PixelBasedConcept
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/// \brief Concept for all pixel-based GIL constructs.
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///
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/// Pixel-based constructs include pixels, iterators, locators, views and
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/// images whose value type is a pixel.
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///
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/// \code
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/// concept PixelBasedConcept<typename T>
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/// {
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/// typename color_space_type<T>;
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/// where Metafunction<color_space_type<T> >;
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/// where ColorSpaceConcept<color_space_type<T>::type>;
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/// typename channel_mapping_type<T>;
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/// where Metafunction<channel_mapping_type<T> >;
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/// where ChannelMappingConcept<channel_mapping_type<T>::type>;
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/// typename is_planar<T>;
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/// where Metafunction<is_planar<T> >;
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/// where SameType<is_planar<T>::type, bool>;
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/// };
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/// \endcode
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template <typename P>
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struct PixelBasedConcept
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{
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void constraints()
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{
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using color_space_t = typename color_space_type<P>::type;
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gil_function_requires<ColorSpaceConcept<color_space_t>>();
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using channel_mapping_t = typename channel_mapping_type<P>::type ;
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gil_function_requires<ChannelMappingConcept<channel_mapping_t>>();
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static const bool planar = is_planar<P>::value;
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ignore_unused_variable_warning(planar);
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// This is not part of the concept, but should still work
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static const std::size_t nc = num_channels<P>::value;
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ignore_unused_variable_warning(nc);
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}
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};
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/// \brief Concept for homogeneous pixel-based GIL constructs
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/// \ingroup PixelBasedConcept
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/// \code
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/// concept HomogeneousPixelBasedConcept<PixelBasedConcept T>
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/// {
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/// typename channel_type<T>;
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/// where Metafunction<channel_type<T>>;
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/// where ChannelConcept<channel_type<T>::type>;
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/// };
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/// \endcode
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template <typename P>
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struct HomogeneousPixelBasedConcept
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{
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void constraints()
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{
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gil_function_requires<PixelBasedConcept<P>>();
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using channel_t = typename channel_type<P>::type;
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gil_function_requires<ChannelConcept<channel_t>>();
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}
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};
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}} // namespace boost::gil
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#if defined(BOOST_CLANG)
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#pragma clang diagnostic pop
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#endif
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#if defined(BOOST_GCC) && (BOOST_GCC >= 40900)
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#pragma GCC diagnostic pop
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#endif
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#endif
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