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https://github.com/boostorg/gil.git
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342 lines
9.4 KiB
C++
342 lines
9.4 KiB
C++
/*
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Copyright 2013 Christian Henning
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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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#define BOOST_TEST_MODULE jpeg_test
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#include <boost/test/unit_test.hpp>
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#define BOOST_FILESYSTEM_VERSION 3
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#include <boost/filesystem/path.hpp>
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#include <fstream>
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#include <boost/gil/gil_all.hpp>
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#define BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
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#include <boost/gil/extension/io/jpeg_all.hpp>
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#include "mandel_view.hpp"
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#include "paths.hpp"
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#include "subimage_test.hpp"
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using namespace std;
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using namespace boost;
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using namespace gil;
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using namespace filesystem;
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typedef jpeg_tag tag_t;
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BOOST_AUTO_TEST_SUITE( gil_io_jpeg_tests )
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#ifdef BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
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BOOST_AUTO_TEST_CASE( read_image_info_test )
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{
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{
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typedef get_reader_backend< const std::string
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, tag_t
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>::type backend_t;
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backend_t backend = read_image_info( jpeg_filename
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, tag_t()
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);
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BOOST_CHECK_EQUAL( backend._info._width , 1000u );
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BOOST_CHECK_EQUAL( backend._info._height, 600u );
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}
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{
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ifstream in( jpeg_filename.c_str(), ios::binary );
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typedef get_reader_backend< ifstream
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, tag_t
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>::type backend_t;
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backend_t backend = read_image_info( in
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, tag_t()
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);
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BOOST_CHECK_EQUAL( backend._info._width , 1000u );
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BOOST_CHECK_EQUAL( backend._info._height, 600u );
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}
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{
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FILE* file = fopen( jpeg_filename.c_str(), "rb" );
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typedef get_reader_backend< FILE*
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, tag_t
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>::type backend_t;
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backend_t backend = boost::gil::read_image_info( file
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, tag_t()
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);
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BOOST_CHECK_EQUAL( backend._info._width , 1000u );
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BOOST_CHECK_EQUAL( backend._info._height, 600u );
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}
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{
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typedef get_reader_backend< path
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, tag_t
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>::type backend_t;
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backend_t backend = boost::gil::read_image_info( path( jpeg_filename )
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, tag_t()
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);
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BOOST_CHECK_EQUAL( backend._info._width , 1000u );
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BOOST_CHECK_EQUAL( backend._info._height, 600u );
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}
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}
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BOOST_AUTO_TEST_CASE( read_image_test )
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{
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{
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rgb8_image_t img;
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read_image( jpeg_filename, img, tag_t() );
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BOOST_CHECK_EQUAL( img.width() , 1000u );
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BOOST_CHECK_EQUAL( img.height(), 600u );
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}
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{
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ifstream in( jpeg_filename.c_str(), ios::binary );
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rgb8_image_t img;
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read_image( in, img, tag_t() );
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BOOST_CHECK_EQUAL( img.width() , 1000u );
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BOOST_CHECK_EQUAL( img.height(), 600u );
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}
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{
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FILE* file = fopen( jpeg_filename.c_str(), "rb" );
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rgb8_image_t img;
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read_image( file, img, tag_t() );
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BOOST_CHECK_EQUAL( img.width() , 1000u );
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BOOST_CHECK_EQUAL( img.height(), 600u );
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}
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{
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rgb8_image_t img;
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image_read_settings< jpeg_tag > settings( point_t( 0, 0 )
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, point_t( 10, 10 )
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, jpeg_dct_method::slow
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);
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read_image( jpeg_filename, img, settings );
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BOOST_CHECK_EQUAL( img.width() , 10u );
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BOOST_CHECK_EQUAL( img.height(), 10u );
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}
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}
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BOOST_AUTO_TEST_CASE( read_and_convert_image_test )
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{
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{
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rgb8_image_t img;
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read_and_convert_image( jpeg_filename, img, tag_t() );
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}
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{
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ifstream in( jpeg_filename.c_str(), ios::binary );
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rgb8_image_t img;
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read_and_convert_image( in, img, tag_t() );
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}
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}
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BOOST_AUTO_TEST_CASE( read_view_test )
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{
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{
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rgb8_image_t img( 1000, 600 );
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read_view( jpeg_filename, view( img ), tag_t() );
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}
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{
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ifstream in( jpeg_filename.c_str(), ios::binary );
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rgb8_image_t img( 1000, 600 );
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read_view( in, view( img ), tag_t() );
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}
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{
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FILE* file = fopen( jpeg_filename.c_str(), "rb" );
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rgb8_image_t img( 1000, 600 );
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read_view( file, view( img ), tag_t() );
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}
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}
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BOOST_AUTO_TEST_CASE( read_and_convert_view_test )
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{
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{
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rgb8_image_t img( 1000, 600 );
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read_and_convert_view( jpeg_filename, view( img ), tag_t() );
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}
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{
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ifstream in( jpeg_filename.c_str(), ios::binary );
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rgb8_image_t img( 1000, 600 );
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read_and_convert_view( in, view( img ), tag_t() );
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}
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{
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FILE* file = fopen( jpeg_filename.c_str(), "rb" );
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rgb8_image_t img( 1000, 600 );
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read_and_convert_view( file
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, view( img )
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, tag_t()
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);
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}
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}
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#ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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BOOST_AUTO_TEST_CASE( write_view_test )
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{
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{
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string filename( jpeg_out + "write_test_string.jpg" );
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write_view( filename
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, create_mandel_view( 320, 240
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, rgb8_pixel_t( 0, 0, 255 )
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, rgb8_pixel_t( 0, 255, 0 )
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)
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, tag_t()
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);
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}
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{
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string filename( jpeg_out + "write_test_ofstream.jpg" );
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ofstream out( filename.c_str(), ios::binary );
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write_view( out
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, create_mandel_view( 320, 240
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, rgb8_pixel_t( 0, 0, 255 )
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, rgb8_pixel_t( 0, 255, 0 )
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)
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, tag_t()
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);
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}
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{
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string filename( jpeg_out + "write_test_file.jpg" );
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FILE* file = fopen( filename.c_str(), "wb" );
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write_view( file
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, create_mandel_view( 320, 240
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, rgb8_pixel_t( 0, 0, 255 )
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, rgb8_pixel_t( 0, 255, 0 )
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)
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, tag_t()
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);
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}
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{
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string filename( jpeg_out + "write_test_info.jpg" );
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FILE* file = fopen( filename.c_str(), "wb" );
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image_write_info< jpeg_tag > info;
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write_view( file
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, create_mandel_view( 320, 240
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, rgb8_pixel_t( 0, 0, 255 )
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, rgb8_pixel_t( 0, 255, 0 )
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)
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, info
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);
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}
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}
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#endif //BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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BOOST_AUTO_TEST_CASE( stream_test )
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{
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// 1. Read an image.
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ifstream in( jpeg_filename.c_str(), ios::binary );
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rgb8_image_t img;
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read_image( in, img, tag_t() );
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// 2. Write image to in-memory buffer.
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stringstream out_buffer( ios_base::in | ios_base::out | ios_base::binary );
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write_view( out_buffer, view( img ), tag_t() );
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// 3. Copy in-memory buffer to another.
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stringstream in_buffer( ios_base::in | ios_base::out | ios_base::binary );
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in_buffer << out_buffer.rdbuf();
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// 4. Read in-memory buffer to gil image
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rgb8_image_t dst;
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read_image( in_buffer, dst, tag_t() );
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// 5. Write out image.
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string filename( jpeg_out + "stream_test.jpg" );
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ofstream out( filename.c_str(), ios_base::binary );
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#ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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write_view( out, view( dst ), tag_t() );
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#endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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}
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BOOST_AUTO_TEST_CASE( stream_test_2 )
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{
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filebuf in_buf;
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if( !in_buf.open( jpeg_filename.c_str(), ios::in | ios::binary ) )
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{
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BOOST_CHECK( false );
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}
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istream in( &in_buf );
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rgb8_image_t img;
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read_image( in, img, tag_t() );
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}
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BOOST_AUTO_TEST_CASE( subimage_test )
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{
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run_subimage_test< rgb8_image_t, tag_t >( jpeg_filename
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, point_t( 0, 0 )
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, point_t( 50, 50 )
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);
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run_subimage_test< rgb8_image_t, tag_t >( jpeg_filename
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, point_t( 43, 24 )
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, point_t( 50, 50 )
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);
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}
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BOOST_AUTO_TEST_CASE( dynamic_image_test )
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{
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typedef mpl::vector< gray8_image_t
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, gray16_image_t
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, rgb8_image_t
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, rgba8_image_t
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> my_img_types;
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any_image< my_img_types > runtime_image;
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read_image( jpeg_filename.c_str()
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, runtime_image
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, jpeg_tag()
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);
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#ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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write_view( jpeg_out + "old_dynamic_image_test.jpg"
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, view( runtime_image )
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, jpeg_tag()
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);
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#endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
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}
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#endif // BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
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BOOST_AUTO_TEST_SUITE_END()
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