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- //
- // Copyright 2005-2007 Adobe Systems Incorporated
- // Copyright 2018 Mateusz Loskot <mateusz at loskot dot net>
- //
- // 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
- //
- #include <boost/gil/channel_algorithm.hpp>
- #include <cstdint>
- #define BOOST_TEST_MODULE test_algorithm_channel_convert
- #include "unit_test.hpp"
- #include "test_fixture.hpp"
- namespace gil = boost::gil;
- namespace fixture = boost::gil::test::fixture;
- template <typename ChannelFixtureBase>
- struct test_convert_to
- {
- using channel_t = typename fixture::channel<ChannelFixtureBase>::channel_t;
- using channel_value_t = typename fixture::channel<ChannelFixtureBase>::channel_value_t;
- template <typename Channel>
- static void from(Channel src_min_v, Channel src_max_v)
- {
- channel_value_t min_v = gil::channel_convert<channel_t>(src_min_v);
- channel_value_t max_v = gil::channel_convert<channel_t>(src_max_v);
- fixture::channel_minmax_value<channel_value_t> expect;
- BOOST_TEST(min_v == expect.min_v_);
- BOOST_TEST(max_v == expect.max_v_);
- }
- };
- //--- Test gil::channel_convert from integral channels to all byte channels -------------
- #define GIL_TEST_CHANNEL_CONVERT_FROM(source_channel_type) \
- BOOST_FIXTURE_TEST_SUITE( \
- channel_convert_from_##source_channel_type, \
- fixture::channel_minmax_value<std::source_channel_type>) \
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_value, Channel, fixture::channel_byte_types) \
- { test_convert_to<fixture::channel_value<Channel>>::from(min_v_, max_v_); } \
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_reference, Channel, fixture::channel_byte_types) \
- { test_convert_to<fixture::channel_reference<Channel&>>::from(min_v_, max_v_); } \
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_reference_const, Channel, fixture::channel_byte_types) \
- { test_convert_to<fixture::channel_reference<Channel const&>>::from(min_v_, max_v_); } \
- BOOST_AUTO_TEST_CASE(packed_channel_reference) \
- { \
- using channels565_t = fixture::packed_channels565<std::uint16_t>; \
- test_convert_to<typename channels565_t::fixture_0_5_t>::from(min_v_, max_v_); \
- test_convert_to<typename channels565_t::fixture_5_6_t>::from(min_v_, max_v_); \
- test_convert_to<typename channels565_t::fixture_11_5_t>::from(min_v_, max_v_); \
- } \
- BOOST_AUTO_TEST_CASE(packed_dynamic_channel_reference) \
- { \
- using channels565_t = fixture::packed_dynamic_channels565<std::uint16_t>; \
- test_convert_to<typename channels565_t::fixture_5_t>::from(min_v_, max_v_); \
- test_convert_to<typename channels565_t::fixture_6_t>::from(min_v_, max_v_); \
- } \
- BOOST_AUTO_TEST_SUITE_END()
- GIL_TEST_CHANNEL_CONVERT_FROM(uint8_t)
- GIL_TEST_CHANNEL_CONVERT_FROM(int8_t)
- GIL_TEST_CHANNEL_CONVERT_FROM(uint16_t)
- GIL_TEST_CHANNEL_CONVERT_FROM(int16_t)
- GIL_TEST_CHANNEL_CONVERT_FROM(uint32_t)
- GIL_TEST_CHANNEL_CONVERT_FROM(int32_t)
- #undef GIL_TEST_CHANNEL_CONVERT_FROM
- // FIXME: gil::float32_t <-> gil::float64_t seems not supported
- //--- Test gil::channel_convert from gil::float32_t to all integer channels -------------
- BOOST_FIXTURE_TEST_SUITE(channel_convert_from_float32_t,
- fixture::channel_minmax_value<gil::float32_t>)
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_value, Channel, fixture::channel_integer_types)
- {
- test_convert_to<fixture::channel_value<Channel>>::from(min_v_, max_v_);
- }
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_reference, Channel, fixture::channel_integer_types)
- {
- test_convert_to<fixture::channel_reference<Channel&>>::from(min_v_, max_v_);
- }
- BOOST_AUTO_TEST_CASE_TEMPLATE(
- channel_reference_const, Channel, fixture::channel_integer_types)
- {
- test_convert_to<fixture::channel_reference<Channel const&>>::from(min_v_, max_v_);
- }
- BOOST_AUTO_TEST_SUITE_END()
- //--- Test gil::channel_convert from gil::float64_t to all integer channels -------------
- BOOST_FIXTURE_TEST_SUITE(channel_convert_from_float64_t,
- fixture::channel_minmax_value<gil::float64_t>)
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_value, Channel, fixture::channel_integer_types)
- {
- test_convert_to<fixture::channel_value<Channel>>::from(min_v_, max_v_);
- }
- BOOST_AUTO_TEST_CASE_TEMPLATE(channel_reference, Channel, fixture::channel_integer_types)
- {
- test_convert_to<fixture::channel_reference<Channel&>>::from(min_v_, max_v_);
- }
- BOOST_AUTO_TEST_CASE_TEMPLATE(
- channel_reference_const, Channel, fixture::channel_integer_types)
- {
- test_convert_to<fixture::channel_reference<Channel const&>>::from(min_v_, max_v_);
- }
- BOOST_AUTO_TEST_SUITE_END()
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