125 lines
3.5 KiB
C++
125 lines
3.5 KiB
C++
//
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// Copyright 2013 Christian Henning
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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.hpp>
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#include <boost/gil/extension/io/pnm.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <string>
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#include "paths.hpp"
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#include "scanline_read_test.hpp"
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namespace gil = boost::gil;
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template <typename Image>
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void write(Image& img, std::string const& file_name)
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{
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#ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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gil::write_view(pnm_out + file_name, gil::view(img), gil::pnm_tag());
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#endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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}
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template <typename Image>
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void test_pnm_scanline_reader(std::string filename)
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{
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test_scanline_reader<Image, gil::pnm_tag>(std::string(pnm_in + filename).c_str());
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}
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#ifdef BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
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void test_read_header()
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{
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using backend_t = gil::get_reader_backend<std::string const, gil::pnm_tag>::type;
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backend_t backend = gil::read_image_info(pnm_filename, gil::pnm_tag());
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BOOST_TEST_EQ(backend._info._type, gil::pnm_image_type::color_bin_t::value);
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BOOST_TEST_EQ(backend._info._width, 256u);
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BOOST_TEST_EQ(backend._info._height, 256u);
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BOOST_TEST_EQ(backend._info._max_value, 255u);
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}
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#ifdef BOOST_GIL_IO_USE_PNM_TEST_SUITE_IMAGES
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void test_read_reference_images()
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{
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// p1.pnm
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{
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gil::gray8_image_t img;
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gil::read_image(pnm_in + "p1.pnm", img, gil::pnm_tag());
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BOOST_TEST_EQ(view(img).width(), 200u);
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BOOST_TEST_EQ(view(img).height(), 200u);
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write(img, "p1.pnm");
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test_pnm_scanline_reader<gil::gray8_image_t>("p1.pnm");
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}
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// p2.pnm
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{
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gil::gray8_image_t img;
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gil::read_image(pnm_in + "p2.pnm", img, gil::pnm_tag());
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BOOST_TEST_EQ(view(img).width(), 200u);
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BOOST_TEST_EQ(view(img).height(), 200u);
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write(img, "p2.pnm");
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test_pnm_scanline_reader<gil::gray8_image_t>("p2.pnm");
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}
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// p3.pnm
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{
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gil::rgb8_image_t img;
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gil::read_image(pnm_in + "p3.pnm", img, gil::pnm_tag());
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BOOST_TEST_EQ(view(img).width(), 256u);
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BOOST_TEST_EQ(view(img).height(), 256u);
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write(img, "p3.pnm");
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test_pnm_scanline_reader<rgb8_image_t>("p3.pnm");
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}
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// p4.pnm
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{
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gil::gray1_image_t img;
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gil::read_image(pnm_in + "p4.pnm", img, gil::pnm_tag());
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BOOST_TEST_EQ(view(img).width(), 200u);
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BOOST_TEST_EQ(view(img).height(), 200u);
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write(img, "p4.pnm");
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test_pnm_scanline_reader<gil::gray1_image_t>("p4.pnm");
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}
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// p5.pnm
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{
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gil::gray8_image_t img;
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gil::read_image(pnm_in + "p5.pnm", img, gil::pnm_tag());
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BOOST_TEST_EQ(view(img).width(), 200u);
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BOOST_TEST_EQ(view(img).height(), 200u);
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write(img, "p5.pnm");
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test_pnm_scanline_reader<gil::gray8_image_t>("p5.pnm");
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}
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// p6.pnm
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{
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gil::rgb8_image_t img;
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gil::read_image(pnm_in + "p6.pnm", img, gil::pnm_tag());
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BOOST_TEST_EQ(view(img).width(), 256u);
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BOOST_TEST_EQ(view(img).height(), 256u);
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write(img, "p6.pnm");
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test_pnm_scanline_reader<gil::rgb8_image_t>("p6.pnm");
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}
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}
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#endif // BOOST_GIL_IO_USE_PNM_TEST_SUITE_IMAGES
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int main()
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{
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test_read_header();
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#ifdef BOOST_GIL_IO_USE_PNM_TEST_SUITE_IMAGES
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test_read_reference_images();
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#endif
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return boost::report_errors();
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}
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#else
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int main() {}
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#endif // BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
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