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- //
- // Copyright 2019 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.hpp>
- #include <boost/gil/extension/numeric/pixel_numeric_operations.hpp>
- #include <tuple>
- #include <type_traits>
- #define BOOST_TEST_MODULE test_ext_numeric_pixel_numeric_operations
- #include "unit_test.hpp"
- #include "unit_test_utility.hpp"
- #include "core/image/test_fixture.hpp" // random_value
- #include "core/pixel/test_fixture.hpp"
- namespace gil = boost::gil;
- namespace fixture = boost::gil::test::fixture;
- BOOST_AUTO_TEST_SUITE(pixel_plus_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(plus_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_plus_t<pixel_t, pixel_t, pixel_t> f;
- {
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- BOOST_TEST(f(p0, p0) == p0);
- }
- {
- pixel_t p1;
- gil::static_fill(p1, static_cast<channel_t>(1));
- pixel_t r2;
- gil::static_fill(r2, static_cast<channel_t>(2));
- BOOST_TEST(f(p1, p1) == r2);
- }
- {
- // Generates pixels with consecutive channel values: {1} or {1,2,3} or {1,2,3,4} etc.
- fixture::consecutive_value<channel_t> g(1);
- pixel_t p;
- gil::static_generate(p, [&g]() { return g(); });
- auto const r = f(p, p);
- BOOST_TEST(r != p);
- BOOST_TEST(gil::at_c<0>(r) == (gil::at_c<0>(p) + gil::at_c<0>(p)));
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_plus_t
- BOOST_AUTO_TEST_SUITE(pixel_minus_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(minus_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_minus_t<pixel_t, pixel_t, pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- BOOST_TEST(f(p0, p0) == p0);
- {
- pixel_t p1, p2;
- gil::static_fill(p1, static_cast<channel_t>(1));
- gil::static_fill(p2, static_cast<channel_t>(2));
- pixel_t r1;
- gil::static_fill(r1, static_cast<channel_t>(1));
- BOOST_TEST(f(p2, p1) == r1);
- }
- {
- // Generates pixels with consecutive channel values: {1} or {1,2,3} or {1,2,3,4} etc.
- fixture::consecutive_value<channel_t> g(1);
- pixel_t p;
- gil::static_generate(p, [&g]() { return g(); });
- BOOST_TEST(f(p, p) == p0);
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_minus_t
- BOOST_AUTO_TEST_SUITE(pixel_multiplies_scalar_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_multiplies_scalar_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_multiplies_scalar_t<pixel_t, channel_t, pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- BOOST_TEST(f(p0, 0) == p0);
- {
- pixel_t p1;
- gil::static_fill(p1, static_cast<channel_t>(1));
- BOOST_TEST(f(p1, 0) == p0);
- BOOST_TEST(f(p1, 1) == p1);
- }
- {
- // Generates pixels with consecutive channel values: {1} or {1,2,3} or {1,2,3,4} etc.
- fixture::consecutive_value<channel_t> g(1);
- pixel_t p;
- gil::static_generate(p, [&g]() { return g(); });
- // check first channel value is doubled
- auto const r = f(p, 2);
- BOOST_TEST(r != p);
- BOOST_TEST(gil::at_c<0>(r) == (gil::at_c<0>(p) * 2));
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_multiplies_scalar_t
- BOOST_AUTO_TEST_SUITE(pixel_multiply_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_multiply_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_multiply_t<pixel_t, pixel_t, pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- BOOST_TEST(f(p0, p0) == p0);
- pixel_t p1;
- gil::static_fill(p1, static_cast<channel_t>(1));
- BOOST_TEST(f(p1, p1) == p1);
- pixel_t p2;
- gil::static_fill(p2, static_cast<channel_t>(2));
- BOOST_TEST(f(p1, p2) == p2);
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_multiply_t
- BOOST_AUTO_TEST_SUITE(pixel_divides_scalar_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_divides_scalar_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_divides_scalar_t<pixel_t, channel_t, pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- BOOST_TEST(f(p0, 1) == p0);
- pixel_t p1;
- gil::static_fill(p1, static_cast<channel_t>(1));
- BOOST_TEST(f(p1, 1) == p1);
- pixel_t p2;
- gil::static_fill(p2, static_cast<channel_t>(2));
- BOOST_TEST(f(p2, 2) == p1);
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_divides_scalar_t
- BOOST_AUTO_TEST_SUITE(pixel_divide_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_divide_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_divide_t<pixel_t, pixel_t, pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- pixel_t p1;
- gil::static_fill(p1, static_cast<channel_t>(1));
- BOOST_TEST(f(p0, p1) == p0);
- BOOST_TEST(f(p1, p1) == p1);
- pixel_t p2;
- gil::static_fill(p2, static_cast<channel_t>(2));
- BOOST_TEST(f(p2, p1) == p2);
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_divide_t
- BOOST_AUTO_TEST_SUITE(pixel_halves_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_halves_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_halves_t<pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- pixel_t p1;
- gil::static_fill(p1, static_cast<channel_t>(1));
- {
- auto p = p0;
- BOOST_TEST(f(p) == p0);
- }
- {
- auto p = p1;
- BOOST_TEST(f(p) == p0); // truncates toward Zero
- }
- {
- pixel_t p2;
- gil::static_fill(p2, static_cast<channel_t>(2));
- BOOST_TEST(f(p2) == p1);
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_halves_t
- BOOST_AUTO_TEST_SUITE(pixel_zeros_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_zeros_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_zeros_t<pixel_t> f;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- {
- auto p = p0;
- BOOST_TEST(f(p) == p0);
- }
- {
- fixture::consecutive_value<channel_t> g(1);
- pixel_t p;
- gil::static_generate(p, [&g]() { return g(); });
- BOOST_TEST(f(p) == p0);
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_zeros_t
- BOOST_AUTO_TEST_SUITE(zero_channels)
- BOOST_AUTO_TEST_CASE_TEMPLATE(zero_channels_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- pixel_t p0;
- gil::static_fill(p0, static_cast<channel_t>(0));
- {
- auto p = p0;
- gil::zero_channels(p);
- BOOST_TEST(p == p0);
- }
- {
- fixture::consecutive_value<channel_t> g(1);
- pixel_t p;
- gil::static_generate(p, [&g]() { return g(); });
- gil::zero_channels(p);
- BOOST_TEST(p == p0);
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // zero_channels
- BOOST_AUTO_TEST_SUITE(pixel_assigns_t)
- BOOST_AUTO_TEST_CASE_TEMPLATE(pixel_assigns_integer_same_types, pixel_t, fixture::pixel_integer_types)
- {
- using channel_t = typename gil::channel_type<pixel_t>::type;
- gil::pixel_assigns_t<pixel_t, pixel_t> f;
- {
- pixel_t p0, r;
- gil::static_fill(p0, static_cast<channel_t>(0));
- f(p0, r);
- BOOST_TEST(p0 == r);
- }
- {
- fixture::consecutive_value<channel_t> g(1);
- pixel_t p, r;
- gil::static_generate(p, [&g]() { return g(); });
- f(p, r);
- BOOST_TEST(p == r);
- }
- }
- BOOST_AUTO_TEST_SUITE_END() // pixel_assigns_t
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