libs/gil/test/extension/io/bmp_test.cpp

   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 bmp_test
   9 #define BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
  10 #define BOOST_FILESYSTEM_VERSION 3
  11 #include <boost/gil.hpp>
  12 #include <boost/gil/extension/io/bmp.hpp>
  13
  14 #include <boost/mp11.hpp>
  15 #include <boost/test/unit_test.hpp>
  16
  17 #include <fstream>
  18
  19 #include "mandel_view.hpp"
  20 #include "paths.hpp"
  21 #include "subimage_test.hpp"
  22
  23 using namespace std;
  24 using namespace boost;
  25 using namespace gil;
  26 namespace fs = boost::filesystem;
  27
  28 using tag_t = bmp_tag;
  29
  30 BOOST_AUTO_TEST_SUITE( gil_io_bmp_tests )
  31
  32 #ifdef BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
  33
  34 BOOST_AUTO_TEST_CASE( read_image_info_using_string )
  35 {
  36     {
  37         using backend_t = get_reader_backend<std::string const, tag_t>::type;
  38
  39         backend_t backend = read_image_info( bmp_filename
  40                                            , tag_t()
  41                                            );
  42
  43         BOOST_CHECK_EQUAL( backend._info._width , 1000 );
  44         BOOST_CHECK_EQUAL( backend._info._height, 600  );
  45     }
  46
  47     {
  48         ifstream in( bmp_filename.c_str(), ios::binary );
  49
  50         using backend_t = get_reader_backend<std::ifstream, tag_t>::type;
  51
  52         backend_t backend = read_image_info( in
  53                                            , tag_t()
  54                                            );
  55
  56         BOOST_CHECK_EQUAL( backend._info._width , 1000 );
  57         BOOST_CHECK_EQUAL( backend._info._height, 600  );
  58     }
  59
  60     {
  61         FILE* file = fopen( bmp_filename.c_str(), "rb" );
  62
  63         using backend_t = get_reader_backend<FILE*, tag_t>::type;
  64
  65         backend_t backend = read_image_info( file
  66                                            , tag_t()
  67                                            );
  68
  69         BOOST_CHECK_EQUAL( backend._info._width , 1000 );
  70         BOOST_CHECK_EQUAL( backend._info._height, 600  );
  71     }
  72
  73     {
  74         fs::path my_path( bmp_filename );
  75
  76         using backend_t = get_reader_backend<fs::path, tag_t>::type;
  77
  78         backend_t backend = read_image_info( my_path
  79                                            , tag_t()
  80                                            );
  81
  82         BOOST_CHECK_EQUAL( backend._info._width , 1000 );
  83         BOOST_CHECK_EQUAL( backend._info._height, 600   );
  84     }
  85 }
  86
  87 BOOST_AUTO_TEST_CASE( read_image_test )
  88 {
  89     {
  90         rgb8_image_t img;
  91         read_image( bmp_filename, img, tag_t() );
  92
  93         BOOST_CHECK_EQUAL( img.width() , 1000 );
  94         BOOST_CHECK_EQUAL( img.height(), 600  );
  95     }
  96
  97     {
  98         ifstream in( bmp_filename.c_str(), ios::binary );
  99
 100         rgb8_image_t img;
 101         read_image( in, img, tag_t() );
 102
 103         BOOST_CHECK_EQUAL( img.width() , 1000 );
 104         BOOST_CHECK_EQUAL( img.height(), 600  );
 105     }
 106
 107     {
 108         FILE* file = fopen( bmp_filename.c_str(), "rb" );
 109
 110         rgb8_image_t img;
 111         read_image( file, img, tag_t() );
 112
 113         BOOST_CHECK_EQUAL( img.width() , 1000 );
 114         BOOST_CHECK_EQUAL( img.height(), 600  );
 115     }
 116
 117     {
 118         fs::path my_path( bmp_filename );
 119
 120         rgb8_image_t img;
 121         read_image( my_path, img, tag_t() );
 122
 123         BOOST_CHECK_EQUAL( img.width() , 1000 );
 124         BOOST_CHECK_EQUAL( img.height(), 600  );
 125     }
 126 }
 127
 128 BOOST_AUTO_TEST_CASE( read_and_convert_image_test )
 129 {
 130     {
 131         rgb8_image_t img;
 132         read_and_convert_image( bmp_filename, img, tag_t() );
 133
 134         BOOST_CHECK_EQUAL( img.width() , 1000 );
 135         BOOST_CHECK_EQUAL( img.height(), 600  );
 136     }
 137
 138     {
 139         ifstream in( bmp_filename.c_str(), ios::binary );
 140
 141         rgb8_image_t img;
 142         read_and_convert_image( in, img, tag_t() );
 143
 144         BOOST_CHECK_EQUAL( img.width() , 1000 );
 145         BOOST_CHECK_EQUAL( img.height(), 600  );
 146     }
 147
 148     {
 149         FILE* file = fopen( bmp_filename.c_str(), "rb" );
 150
 151         rgb8_image_t img;
 152         read_and_convert_image( file, img, tag_t() );
 153
 154         BOOST_CHECK_EQUAL( img.width() , 1000 );
 155         BOOST_CHECK_EQUAL( img.height(), 600  );
 156     }
 157 }
 158
 159 BOOST_AUTO_TEST_CASE( read_view_test )
 160 {
 161     {
 162         rgb8_image_t img( 1000, 600  );
 163         read_view( bmp_filename, view( img ), tag_t() );
 164     }
 165
 166     {
 167         ifstream in( bmp_filename.c_str(), ios::binary );
 168
 169         rgb8_image_t img( 1000, 600  );
 170         read_view( in, view( img ), tag_t() );
 171     }
 172
 173     {
 174         FILE* file = fopen( bmp_filename.c_str(), "rb" );
 175
 176         rgb8_image_t img( 1000, 600  );
 177         read_view( file, view( img ), tag_t() );
 178     }
 179 }
 180
 181 BOOST_AUTO_TEST_CASE( read_and_convert_view_test )
 182 {
 183     {
 184         rgb8_image_t img( 1000, 600  );
 185         read_and_convert_view( bmp_filename, view( img ), tag_t() );
 186     }
 187
 188     {
 189         ifstream in( bmp_filename.c_str(), ios::binary );
 190
 191         rgb8_image_t img( 1000, 600  );
 192         read_and_convert_view( in, view( img ), tag_t() );
 193     }
 194
 195     {
 196         FILE* file = fopen( bmp_filename.c_str(), "rb" );
 197
 198         rgb8_image_t img( 1000, 600  );
 199         read_and_convert_view( file
 200                              , view( img )
 201                              , tag_t()
 202                              );
 203     }
 204 }
 205
 206 BOOST_AUTO_TEST_CASE( write_view_test )
 207 {
 208 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 209     {
 210         string filename( bmp_out + "write_test_string.bmp" );
 211
 212         write_view( filename
 213                   , create_mandel_view( 1000, 600
 214                                       , rgb8_pixel_t( 0,   0, 255 )
 215                                       , rgb8_pixel_t( 0, 255,   0 )
 216                                       )
 217                   , tag_t()
 218                   );
 219     }
 220
 221     {
 222         string filename( bmp_out + "write_test_ofstream.bmp" );
 223
 224         ofstream out( filename.c_str(), ios::binary );
 225
 226         write_view( out
 227                   , create_mandel_view( 1000, 600
 228                                       , rgb8_pixel_t( 0,   0, 255 )
 229                                       , rgb8_pixel_t( 0, 255,   0 )
 230                                       )
 231                   , tag_t()
 232                   );
 233     }
 234
 235     {
 236         string filename( bmp_out + "write_test_file.bmp" );
 237
 238         FILE* file = fopen( filename.c_str(), "wb" );
 239
 240         write_view( file
 241                   , create_mandel_view( 1000, 600
 242                                       , rgb8_pixel_t( 0,   0, 255 )
 243                                       , rgb8_pixel_t( 0, 255,   0 )
 244                                       )
 245                   , tag_t()
 246                   );
 247     }
 248
 249     {
 250         string filename( bmp_out + "write_test_info.bmp" );
 251
 252         image_write_info< tag_t > info;
 253
 254         FILE* file = fopen( filename.c_str(), "wb" );
 255
 256         write_view( file
 257                   , create_mandel_view( 1000, 600
 258                                       , rgb8_pixel_t( 0,   0, 255 )
 259                                       , rgb8_pixel_t( 0, 255,   0 )
 260                                       )
 261                   , info
 262                   );
 263     }
 264
 265 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 266 }
 267
 268 BOOST_AUTO_TEST_CASE( stream_test )
 269 {
 270     // 1. Read an image.
 271     ifstream in( bmp_filename.c_str(), ios::binary );
 272
 273     rgb8_image_t img;
 274     read_image( in, img, tag_t() );
 275
 276     // 2. Write image to in-memory buffer.
 277     stringstream out_buffer( ios_base::in | ios_base::out | ios_base::binary );
 278     write_view( out_buffer, view( img ), tag_t() );
 279
 280     // 3. Copy in-memory buffer to another.
 281     stringstream in_buffer( ios_base::in | ios_base::out | ios_base::binary );
 282     in_buffer << out_buffer.rdbuf();
 283
 284     // 4. Read in-memory buffer to gil image
 285     rgb8_image_t dst;
 286     read_image( in_buffer, dst, tag_t() );
 287
 288     // 5. Write out image.
 289     string filename( bmp_out + "stream_test.bmp" );
 290     ofstream out( filename.c_str(), ios_base::binary );
 291
 292 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 293     write_view( out, view( dst ), tag_t() );
 294 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 295 }
 296
 297 BOOST_AUTO_TEST_CASE( stream_test_2 )
 298 {
 299     filebuf in_buf;
 300     if( !in_buf.open( bmp_filename.c_str(), ios::in | ios::binary ) )
 301     {
 302         BOOST_CHECK( false );
 303     }
 304
 305     istream in( &in_buf );
 306
 307     rgb8_image_t img;
 308     read_image( in, img, tag_t() );
 309 }
 310
 311 BOOST_AUTO_TEST_CASE( subimage_test )
 312 {
 313     run_subimage_test< rgb8_image_t, tag_t >( bmp_filename
 314                                             , point_t(   0, 0 )
 315                                             , point_t( 1000, 1 )
 316                                             );
 317
 318     run_subimage_test< rgb8_image_t, tag_t >( bmp_filename
 319                                             , point_t( 39,  7 )
 320                                             , point_t( 50, 50 )
 321                                             );
 322 }
 323
 324 BOOST_AUTO_TEST_CASE( dynamic_image_test )
 325 {
 326     using my_img_types = mp11::mp_list
 327         <
 328             gray8_image_t,
 329             gray16_image_t,
 330             rgb8_image_t,
 331             rgba8_image_t
 332         >;
 333
 334     any_image< my_img_types > runtime_image;
 335
 336     read_image( bmp_filename.c_str()
 337               , runtime_image
 338               , tag_t()
 339               );
 340
 341 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 342     write_view( bmp_out + "dynamic_image_test.bmp"
 343               , view( runtime_image )
 344               , tag_t()
 345               );
 346 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 347 }
 348
 349 #endif // BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
 350
 351 BOOST_AUTO_TEST_SUITE_END()