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f641190948
Improve utilities sending channels, pixels and other GIL objects to
output stream for logging of test errors.
Fix missing namespace qualification in IO tests.
Comment TARGA test case with FIXME that was accidentally
uncommented in cc64bdd1a4
68 lines
1.7 KiB
C++
Executable File
68 lines
1.7 KiB
C++
Executable File
//
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// Copyright 2019 Olzhas Zhumabek <anonymous.from.applecity@gmail.com>
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//
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (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/image.hpp>
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#include <boost/gil/image_processing/scaling.hpp>
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#include <boost/core/lightweight_test.hpp>
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namespace gil = boost::gil;
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bool are_equal(gil::rgb8_view_t expected, gil::rgb8_view_t actual)
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{
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if (expected.dimensions() != actual.dimensions())
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return false;
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for (long int y = 0; y < expected.height(); ++y)
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{
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for (long int x = 0; x < expected.width(); ++x)
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{
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if (expected(x, y) != actual(x, y))
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return false;
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}
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}
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return true;
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}
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void test_lanczos_black_image()
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{
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const gil::point_t input_dimensions(20, 20);
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const gil::point_t output_dimensions(input_dimensions.x / 2, input_dimensions.y / 2);
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gil::rgb8_image_t image(input_dimensions, gil::rgb8_pixel_t(0, 0, 0), 0);
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// fill with values other than 0
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gil::rgb8_image_t output_image(
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output_dimensions,
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gil::rgb8_pixel_t(100, 100, 100),
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0
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);
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gil::rgb8_image_t expected(
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output_dimensions,
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gil::rgb8_pixel_t(0, 0, 0),
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0
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);
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auto view = gil::view(image);
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auto output_view = gil::view(output_image);
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auto expected_view = gil::view(expected);
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gil::scale_lanczos(view, output_view, 5);
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BOOST_TEST(are_equal(expected_view,output_view));
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}
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void test_lanczos_response_on_zero()
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{
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//random value for a
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BOOST_TEST_EQ(gil::lanczos(0, 2), 1);
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}
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int main()
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{
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test_lanczos_black_image();
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test_lanczos_response_on_zero();
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return boost::report_errors();
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}
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