libs/gil/test/extension/dynamic_image/test_fixture.hpp

   1 //
   2 // Copyright 2019 Mateusz Loskot <mateusz at loskot dot net>
   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 #include <boost/gil.hpp>
   9 #include <boost/gil/extension/dynamic_image/any_image.hpp>
  10 #include <boost/mp11.hpp>
  11
  12 #include <tuple>
  13
  14 namespace boost { namespace gil {
  15
  16 namespace test { namespace fixture {
  17
  18 using dynamic_image = gil::any_image
  19 <
  20     boost::mp11::mp_list
  21     <
  22         gil::gray8_image_t,
  23         gil::gray16_image_t,
  24         gil::gray32_image_t,
  25         gil::bgr8_image_t,
  26         gil::bgr16_image_t,
  27         gil::bgr32_image_t,
  28         gil::rgb8_image_t,
  29         gil::rgb16_image_t,
  30         gil::rgb32_image_t,
  31         gil::rgba8_image_t,
  32         gil::rgba16_image_t,
  33         gil::rgba32_image_t
  34     >
  35 >;
  36
  37 template <typename Image>
  38 struct fill_any_view
  39 {
  40     using result_type = void;
  41     using pixel_t = typename Image::value_type;
  42
  43     fill_any_view(std::initializer_list<int> dst_view_indices, pixel_t pixel_value)
  44         : dst_view_indices_(dst_view_indices), pixel_value_(pixel_value)
  45     {}
  46
  47     template <typename View>
  48     void operator()(View& /*dst_view*/) { /* sink any other views here */ }
  49
  50     void operator()(typename Image::view_t& dst_view)
  51     {
  52         // sink view of interest here
  53         for (auto const& i : dst_view_indices_)
  54             dst_view[i] = pixel_value_;
  55     }
  56
  57     std::initializer_list<int> dst_view_indices_;
  58     pixel_t pixel_value_;
  59 };
  60
  61 }}}} // namespace boost::gil::test::fixture