libs/gil/toolbox/test/get_num_bits.cpp

   1 //
   2 // Copyright 2013 Christian Henning
   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/toolbox/metafunctions/channel_type.hpp>
  10 #include <boost/gil/extension/toolbox/metafunctions/get_num_bits.hpp>
  11
  12 #include <boost/test/unit_test.hpp>
  13 #include <boost/type_traits/is_same.hpp>
  14
  15 using namespace boost;
  16 using namespace gil;
  17
  18 BOOST_AUTO_TEST_SUITE( toolbox_tests )
  19
  20 BOOST_AUTO_TEST_CASE( get_num_bits_test )
  21 {
  22     using image_t = bit_aligned_image4_type<4, 4, 4, 4, rgb_layout_t>::type;
  23
  24     using channel_t = channel_type<image_t::view_t::reference>::type;
  25     static_assert(get_num_bits<channel_t>::value == 4, "");
  26
  27     using const_channel_t = channel_type<image_t::const_view_t::reference>::type;
  28     static_assert(get_num_bits<const_channel_t>::value == 4, "");
  29
  30     using bits_t = packed_channel_value<23>;
  31     static_assert(get_num_bits<bits_t>::value == 23, "");
  32     static_assert(get_num_bits<bits_t const>::value == 23, "");
  33
  34     static_assert(get_num_bits<unsigned char >::value == 8, "");
  35     static_assert(get_num_bits<unsigned char const>::value == 8, "");
  36
  37     static_assert(get_num_bits<channel_type<gray8_image_t::view_t::value_type>::type>::value == 8, "");
  38     static_assert(get_num_bits<channel_type<rgba32_image_t::view_t::value_type>::type>::value == 32, "");
  39 }
  40
  41 BOOST_AUTO_TEST_SUITE_END()
  42