1 // 2 // Copyright 2012 Christian Henning, Andreas Pokorny, Lubomir Bourdev 3 // 4 // Distributed under the Boost Software License, Version 1.0 5 // See accompanying file LICENSE_1_0.txt or copy at 6 // http://www.boost.org/LICENSE_1_0.txt 7 // 8 #ifndef BOOST_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_PIXEL_BIT_SIZE_HPP 9 #define BOOST_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_PIXEL_BIT_SIZE_HPP 10 11 #include <boost/gil/bit_aligned_pixel_reference.hpp> 12 #include <boost/gil/packed_pixel.hpp> 13 14 namespace boost{ namespace gil { 15 16 /// pixel_bit_size metafunctions 17 /// \brief Accumulates the all channel size. 18 /// 19 /// \code 20 /// using image_t = bit_aligned_image5_type<16, 16, 16, 8, 8, devicen_layout_t<5>>::type; 21 /// const int size = pixel_bit_size<image_t::view_t::reference>::value; 22 /// \endcode 23 template< typename PixelRef> 24 struct pixel_bit_size : std::integral_constant<int, 0> {}; 25 26 template <typename B, typename C, typename L, bool M> 27 struct pixel_bit_size<bit_aligned_pixel_reference<B, C, L, M>> 28 : mp11::mp_fold 29 < 30 C, 31 std::integral_constant<int, 0>, 32 mp11::mp_plus 33 > 34 {}; 35 36 template <typename B, typename C, typename L, bool M> 37 struct pixel_bit_size<bit_aligned_pixel_reference<B, C, L, M> const> 38 : mp11::mp_fold 39 < 40 C, 41 std::integral_constant<int, 0>, 42 mp11::mp_plus 43 > 44 {}; 45 46 template <typename B, typename C, typename L> 47 struct pixel_bit_size<packed_pixel<B, C, L>> 48 : mp11::mp_fold 49 < 50 C, 51 std::integral_constant<int, 0>, 52 mp11::mp_plus 53 > 54 55 {}; 56 57 template <typename B, typename C, typename L> 58 struct pixel_bit_size<const packed_pixel<B,C,L> > 59 : mp11::mp_fold 60 < 61 C, 62 std::integral_constant<int, 0>, 63 mp11::mp_plus 64 > 65 {}; 66 67 }} // namespace boost::gil 68 69 #endif 70