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