1 //
2 // Copyright 2013 Christian Henning
3 //
4 // Distributed under the Boost Software License, Version 1.0
5 // See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt
7 //
8 #define BOOST_TEST_MODULE jpeg_test
9 #define BOOST_FILESYSTEM_VERSION 3
10 #define BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
11
12 #include <boost/gil.hpp>
13 #include <boost/gil/extension/io/jpeg.hpp>
14
15 #include <boost/mp11.hpp>
16 #include <boost/test/unit_test.hpp>
17
18 #include <fstream>
19
20 #include "mandel_view.hpp"
21 #include "paths.hpp"
22 #include "subimage_test.hpp"
23
24 using namespace boost;
25 using namespace gil;
26
27 using tag_t = jpeg_tag;
28
29 BOOST_AUTO_TEST_SUITE( gil_io_jpeg_tests )
30
31 #ifdef BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
32
BOOST_AUTO_TEST_CASE(read_image_info_test)33 BOOST_AUTO_TEST_CASE( read_image_info_test )
34 {
35
36 {
37 using backend_t = get_reader_backend
38 <
39 std::string const,
40 tag_t
41 >::type;
42
43 backend_t backend = read_image_info( jpeg_filename
44 , tag_t()
45 );
46
47 BOOST_CHECK_EQUAL( backend._info._width , 1000u );
48 BOOST_CHECK_EQUAL( backend._info._height, 600u );
49 }
50
51 {
52 std::ifstream in( jpeg_filename.c_str(), ios::binary );
53
54 using backend_t = get_reader_backend<std::ifstream, tag_t>::type;
55
56 backend_t backend = read_image_info( in
57 , tag_t()
58 );
59
60 BOOST_CHECK_EQUAL( backend._info._width , 1000u );
61 BOOST_CHECK_EQUAL( backend._info._height, 600u );
62 }
63
64 {
65 FILE* file = fopen( jpeg_filename.c_str(), "rb" );
66
67 using backend_t = get_reader_backend<FILE*, tag_t>::type;
68
69 backend_t backend = boost::gil::read_image_info( file
70 , tag_t()
71 );
72
73 BOOST_CHECK_EQUAL( backend._info._width , 1000u );
74 BOOST_CHECK_EQUAL( backend._info._height, 600u );
75 }
76
77 {
78 using backend_t = get_reader_backend<boost::filesystem::path, tag_t>::type;
79
80 backend_t backend =
81 boost::gil::read_image_info(
82 boost::filesystem::path(jpeg_filename),
83 tag_t());
84
85 BOOST_CHECK_EQUAL( backend._info._width , 1000u );
86 BOOST_CHECK_EQUAL( backend._info._height, 600u );
87 }
88 }
89
BOOST_AUTO_TEST_CASE(read_image_test)90 BOOST_AUTO_TEST_CASE( read_image_test )
91 {
92 {
93 rgb8_image_t img;
94 read_image( jpeg_filename, img, tag_t() );
95
96 BOOST_CHECK_EQUAL( img.width() , 1000u );
97 BOOST_CHECK_EQUAL( img.height(), 600u );
98 }
99
100 {
101 std::ifstream in( jpeg_filename.c_str(), ios::binary );
102
103 rgb8_image_t img;
104 read_image( in, img, tag_t() );
105
106 BOOST_CHECK_EQUAL( img.width() , 1000u );
107 BOOST_CHECK_EQUAL( img.height(), 600u );
108 }
109
110 {
111 FILE* file = fopen( jpeg_filename.c_str(), "rb" );
112
113 rgb8_image_t img;
114 read_image( file, img, tag_t() );
115
116 BOOST_CHECK_EQUAL( img.width() , 1000u );
117 BOOST_CHECK_EQUAL( img.height(), 600u );
118 }
119
120 {
121 rgb8_image_t img;
122
123 image_read_settings< jpeg_tag > settings( point_t( 0, 0 )
124 , point_t( 10, 10 )
125 , jpeg_dct_method::slow
126 );
127
128 read_image( jpeg_filename, img, settings );
129
130 BOOST_CHECK_EQUAL( img.width() , 10u );
131 BOOST_CHECK_EQUAL( img.height(), 10u );
132 }
133
134 }
135
BOOST_AUTO_TEST_CASE(read_and_convert_image_test)136 BOOST_AUTO_TEST_CASE( read_and_convert_image_test )
137 {
138 {
139 rgb8_image_t img;
140 read_and_convert_image( jpeg_filename, img, tag_t() );
141 }
142
143 {
144 std::ifstream in( jpeg_filename.c_str(), ios::binary );
145
146 rgb8_image_t img;
147 read_and_convert_image( in, img, tag_t() );
148 }
149 }
150
BOOST_AUTO_TEST_CASE(read_view_test)151 BOOST_AUTO_TEST_CASE( read_view_test )
152 {
153 {
154 rgb8_image_t img( 1000, 600 );
155 read_view( jpeg_filename, view( img ), tag_t() );
156 }
157
158 {
159 std::ifstream in( jpeg_filename.c_str(), ios::binary );
160
161 rgb8_image_t img( 1000, 600 );
162 read_view( in, view( img ), tag_t() );
163 }
164
165 {
166 FILE* file = fopen( jpeg_filename.c_str(), "rb" );
167
168 rgb8_image_t img( 1000, 600 );
169 read_view( file, view( img ), tag_t() );
170 }
171 }
BOOST_AUTO_TEST_CASE(read_and_convert_view_test)172 BOOST_AUTO_TEST_CASE( read_and_convert_view_test )
173 {
174 {
175 rgb8_image_t img( 1000, 600 );
176 read_and_convert_view( jpeg_filename, view( img ), tag_t() );
177 }
178
179 {
180 std::ifstream in( jpeg_filename.c_str(), ios::binary );
181
182 rgb8_image_t img( 1000, 600 );
183 read_and_convert_view( in, view( img ), tag_t() );
184 }
185
186 {
187 FILE* file = fopen( jpeg_filename.c_str(), "rb" );
188
189 rgb8_image_t img( 1000, 600 );
190 read_and_convert_view( file
191 , view( img )
192 , tag_t()
193 );
194 }
195 }
196
197 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
BOOST_AUTO_TEST_CASE(write_view_test)198 BOOST_AUTO_TEST_CASE( write_view_test )
199 {
200 {
201 std::string filename( jpeg_out + "write_test_string.jpg" );
202
203 write_view( filename
204 , create_mandel_view( 320, 240
205 , rgb8_pixel_t( 0, 0, 255 )
206 , rgb8_pixel_t( 0, 255, 0 )
207 )
208 , tag_t()
209 );
210 }
211
212 {
213 std::string filename( jpeg_out + "write_test_ofstream.jpg" );
214 std::ofstream out( filename.c_str(), ios::binary );
215
216 write_view( out
217 , create_mandel_view( 320, 240
218 , rgb8_pixel_t( 0, 0, 255 )
219 , rgb8_pixel_t( 0, 255, 0 )
220 )
221 , tag_t()
222 );
223 }
224
225 {
226 std::string filename( jpeg_out + "write_test_file.jpg" );
227 FILE* file = fopen( filename.c_str(), "wb" );
228
229 write_view( file
230 , create_mandel_view( 320, 240
231 , rgb8_pixel_t( 0, 0, 255 )
232 , rgb8_pixel_t( 0, 255, 0 )
233 )
234 , tag_t()
235 );
236 }
237
238 {
239 std::string filename( jpeg_out + "write_test_info.jpg" );
240 FILE* file = fopen( filename.c_str(), "wb" );
241
242 image_write_info< jpeg_tag > info;
243 write_view( file
244 , create_mandel_view( 320, 240
245 , rgb8_pixel_t( 0, 0, 255 )
246 , rgb8_pixel_t( 0, 255, 0 )
247 )
248 , info
249 );
250 }
251 }
252 #endif //BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
253
BOOST_AUTO_TEST_CASE(stream_test)254 BOOST_AUTO_TEST_CASE( stream_test )
255 {
256 // 1. Read an image.
257 std::ifstream in( jpeg_filename.c_str(), ios::binary );
258
259 rgb8_image_t img;
260 read_image( in, img, tag_t() );
261
262 // 2. Write image to in-memory buffer.
263 std::stringstream out_buffer( ios_base::in | ios_base::out | ios_base::binary );
264 write_view( out_buffer, view( img ), tag_t() );
265
266 // 3. Copy in-memory buffer to another.
267 std::stringstream in_buffer( ios_base::in | ios_base::out | ios_base::binary );
268 in_buffer << out_buffer.rdbuf();
269
270 // 4. Read in-memory buffer to gil image
271 rgb8_image_t dst;
272 read_image( in_buffer, dst, tag_t() );
273
274 // 5. Write out image.
275 std::string filename( jpeg_out + "stream_test.jpg" );
276 std::ofstream out( filename.c_str(), ios_base::binary );
277 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
278 write_view( out, view( dst ), tag_t() );
279 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
280 }
281
BOOST_AUTO_TEST_CASE(stream_test_2)282 BOOST_AUTO_TEST_CASE( stream_test_2 )
283 {
284 std::filebuf in_buf;
285 if( !in_buf.open( jpeg_filename.c_str(), ios::in | ios::binary ) )
286 {
287 BOOST_CHECK( false );
288 }
289
290 std::istream in( &in_buf );
291
292 rgb8_image_t img;
293 read_image( in, img, tag_t() );
294 }
295
BOOST_AUTO_TEST_CASE(subimage_test)296 BOOST_AUTO_TEST_CASE( subimage_test )
297 {
298 run_subimage_test< rgb8_image_t, tag_t >( jpeg_filename
299 , point_t( 0, 0 )
300 , point_t( 50, 50 )
301 );
302
303 run_subimage_test< rgb8_image_t, tag_t >( jpeg_filename
304 , point_t( 43, 24 )
305 , point_t( 50, 50 )
306 );
307 }
308
BOOST_AUTO_TEST_CASE(dynamic_image_test)309 BOOST_AUTO_TEST_CASE( dynamic_image_test )
310 {
311 using my_img_types = mp11::mp_list
312 <
313 gray8_image_t,
314 gray16_image_t,
315 rgb8_image_t,
316 rgba8_image_t
317 >;
318
319
320 any_image< my_img_types > runtime_image;
321
322 read_image( jpeg_filename.c_str()
323 , runtime_image
324 , jpeg_tag()
325 );
326
327 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
328 write_view( jpeg_out + "old_dynamic_image_test.jpg"
329 , view( runtime_image )
330 , jpeg_tag()
331 );
332 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
333 }
334
335 #endif // BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
336
337 BOOST_AUTO_TEST_SUITE_END()
338