libs/gil/test/extension/io/targa_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 targa_test
   9 #define BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
  10
  11 #include <boost/gil.hpp>
  12 #include <boost/gil/extension/io/targa.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 = targa_tag;
  29
  30 BOOST_AUTO_TEST_SUITE( gil_io_targa_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     {
  38         using backend_t = get_reader_backend<std::string const, tag_t>::type;
  39
  40         backend_t backend = read_image_info( targa_filename
  41                                            , tag_t()
  42                                            );
  43
  44         BOOST_CHECK_EQUAL( backend._info._width , 124 );
  45         BOOST_CHECK_EQUAL( backend._info._height, 124 );
  46     }
  47
  48     {
  49         ifstream in( targa_filename.c_str(), ios::binary );
  50
  51         using backend_t = get_reader_backend<ifstream, tag_t>::type;
  52
  53         backend_t backend = read_image_info( in
  54                                            , tag_t()
  55                                            );
  56
  57         BOOST_CHECK_EQUAL( backend._info._width , 124 );
  58         BOOST_CHECK_EQUAL( backend._info._height, 124 );
  59     }
  60
  61     {
  62         FILE* file = fopen( targa_filename.c_str(), "rb" );
  63
  64         using backend_t = get_reader_backend<FILE*, tag_t>::type;
  65
  66         backend_t backend = read_image_info( file
  67                                            , tag_t()
  68                                            );
  69
  70         BOOST_CHECK_EQUAL( backend._info._width , 124 );
  71         BOOST_CHECK_EQUAL( backend._info._height, 124 );
  72     }
  73
  74     {
  75         fs::path my_path( targa_filename );
  76
  77         using backend_t = get_reader_backend<fs::path, tag_t>::type;
  78
  79         backend_t backend = read_image_info( my_path
  80                                            , tag_t()
  81                                            );
  82
  83         BOOST_CHECK_EQUAL( backend._info._width , 124 );
  84         BOOST_CHECK_EQUAL( backend._info._height, 124  );
  85     }
  86 }
  87
  88 BOOST_AUTO_TEST_CASE( read_image_test )
  89 {
  90     {
  91         rgb8_image_t img;
  92         read_image( targa_filename, img, tag_t() );
  93
  94         BOOST_CHECK_EQUAL( img.width() , 124 );
  95         BOOST_CHECK_EQUAL( img.height(), 124 );
  96     }
  97
  98     {
  99         ifstream in( targa_filename.c_str(), ios::binary );
 100
 101         rgb8_image_t img;
 102         read_image( in, img, tag_t() );
 103
 104         BOOST_CHECK_EQUAL( img.width() , 124 );
 105         BOOST_CHECK_EQUAL( img.height(), 124 );
 106     }
 107
 108     {
 109         FILE* file = fopen( targa_filename.c_str(), "rb" );
 110
 111         rgb8_image_t img;
 112         read_image( file, img, tag_t() );
 113
 114         BOOST_CHECK_EQUAL( img.width() , 124 );
 115         BOOST_CHECK_EQUAL( img.height(), 124 );
 116     }
 117 }
 118
 119 BOOST_AUTO_TEST_CASE( read_and_convert_image_test )
 120 {
 121     {
 122         rgb8_image_t img;
 123         read_and_convert_image( targa_filename, img, tag_t() );
 124
 125         BOOST_CHECK_EQUAL( img.width() , 124 );
 126         BOOST_CHECK_EQUAL( img.height(), 124 );
 127     }
 128
 129     {
 130         ifstream in( targa_filename.c_str(), ios::binary );
 131
 132         rgb8_image_t img;
 133         read_and_convert_image( in, img, tag_t() );
 134
 135         BOOST_CHECK_EQUAL( img.width() , 124 );
 136         BOOST_CHECK_EQUAL( img.height(), 124 );
 137     }
 138
 139     {
 140         FILE* file = fopen( targa_filename.c_str(), "rb" );
 141
 142         rgb8_image_t img;
 143         read_and_convert_image( file, img, tag_t() );
 144
 145         BOOST_CHECK_EQUAL( img.width() , 124 );
 146         BOOST_CHECK_EQUAL( img.height(), 124 );
 147     }
 148 }
 149
 150 BOOST_AUTO_TEST_CASE( read_view_test )
 151 {
 152     {
 153         rgb8_image_t img( 124, 124 );
 154         read_view( targa_filename, view( img ), tag_t() );
 155     }
 156
 157     {
 158         ifstream in( targa_filename.c_str(), ios::binary );
 159
 160         rgb8_image_t img( 124, 124 );
 161         read_view( in, view( img ), tag_t() );
 162     }
 163
 164     {
 165         FILE* file = fopen( targa_filename.c_str(), "rb" );
 166
 167         rgb8_image_t img( 124, 124 );
 168         read_view( file, view( img ), tag_t() );
 169     }
 170 }
 171
 172 BOOST_AUTO_TEST_CASE( read_and_convert_view_test )
 173 {
 174     {
 175         rgb8_image_t img( 124, 124 );
 176         read_and_convert_view( targa_filename, view( img ), tag_t() );
 177     }
 178
 179     {
 180         ifstream in( targa_filename.c_str(), ios::binary );
 181
 182         rgb8_image_t img( 124, 124 );
 183         read_and_convert_view( in, view( img ), tag_t() );
 184     }
 185
 186     {
 187         FILE* file = fopen( targa_filename.c_str(), "rb" );
 188
 189         rgb8_image_t img( 124, 124 );
 190         read_and_convert_view( file
 191                              , view( img )
 192                              , tag_t()
 193                              );
 194     }
 195 }
 196
 197 #endif // BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
 198
 199 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 200 BOOST_AUTO_TEST_CASE( write_view_test )
 201 {
 202     {
 203         string filename( targa_out + "write_test_ofstream.tga" );
 204
 205         ofstream out( filename.c_str(), ios::binary );
 206
 207         write_view( out
 208                   , create_mandel_view( 124, 124
 209                                       , rgb8_pixel_t( 0,   0, 255 )
 210                                       , rgb8_pixel_t( 0, 255,   0 )
 211                                       )
 212                   , tag_t()
 213                   );
 214     }
 215
 216     {
 217         string filename( targa_out + "write_test_file.tga" );
 218
 219         FILE* file = fopen( filename.c_str(), "wb" );
 220
 221         write_view( file
 222                   , create_mandel_view( 124, 124
 223                                       , rgb8_pixel_t( 0,   0, 255 )
 224                                       , rgb8_pixel_t( 0, 255,   0 )
 225                                       )
 226                   , tag_t()
 227                   );
 228     }
 229
 230     {
 231         string filename( targa_out + "write_test_info.tga" );
 232
 233         image_write_info< tag_t > info;
 234
 235         FILE* file = fopen( filename.c_str(), "wb" );
 236
 237         write_view( file
 238                   , create_mandel_view( 124, 124
 239                                       , rgb8_pixel_t( 0,   0, 255 )
 240                                       , rgb8_pixel_t( 0, 255,   0 )
 241                                       )
 242                   , info
 243                   );
 244     }
 245 }
 246 #endif //BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 247
 248 #ifdef BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
 249 BOOST_AUTO_TEST_CASE( stream_test )
 250 {
 251     // 1. Read an image.
 252     ifstream in( targa_filename.c_str(), ios::binary );
 253
 254     rgb8_image_t img;
 255     read_image( in, img, tag_t() );
 256
 257     // 2. Write image to in-memory buffer.
 258     stringstream out_buffer( ios_base::in | ios_base::out | ios_base::binary );
 259     write_view( out_buffer, view( img ), tag_t() );
 260
 261     // 3. Copy in-memory buffer to another.
 262     stringstream in_buffer( ios_base::in | ios_base::out | ios_base::binary );
 263     in_buffer << out_buffer.rdbuf();
 264
 265     // 4. Read in-memory buffer to gil image
 266     rgb8_image_t dst;
 267     read_image( in_buffer, dst, tag_t() );
 268
 269     // 5. Write out image.
 270     string filename( targa_out + "stream_test.tga" );
 271     ofstream out( filename.c_str(), ios_base::binary );
 272 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 273     write_view( out, view( dst ), tag_t() );
 274 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 275 }
 276
 277 BOOST_AUTO_TEST_CASE( stream_test_2 )
 278 {
 279     filebuf in_buf;
 280     if( !in_buf.open( targa_filename.c_str(), ios::in | ios::binary ) )
 281     {
 282         BOOST_CHECK( false );
 283     }
 284
 285     istream in( &in_buf );
 286
 287     rgb8_image_t img;
 288     read_image( in, img, tag_t() );
 289 }
 290
 291 BOOST_AUTO_TEST_CASE( subimage_test )
 292 {
 293     run_subimage_test< rgb8_image_t, tag_t >( targa_filename
 294                                             , point_t(  0,  0 )
 295                                             , point_t( 50, 50 )
 296                                             );
 297
 298     // not working
 299     //run_subimage_test< rgb8_image_t, tag_t >( targa_filename
 300     //                                        , point_t( 39,  7 )
 301     //                                        , point_t( 50, 50 )
 302     //                                        );
 303 }
 304
 305 BOOST_AUTO_TEST_CASE( dynamic_image_test )
 306 {
 307     using my_img_types = mp11::mp_list
 308         <
 309             gray8_image_t,
 310             gray16_image_t,
 311             rgb8_image_t,
 312             rgba8_image_t
 313         >;
 314
 315     any_image< my_img_types > runtime_image;
 316
 317     read_image( targa_filename.c_str()
 318               , runtime_image
 319               , tag_t()
 320               );
 321
 322 #ifdef BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 323     write_view( targa_out + "dynamic_image_test.tga"
 324               , view( runtime_image )
 325               , tag_t()
 326               );
 327 #endif // BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES
 328 }
 329
 330 #endif // BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES
 331
 332 BOOST_AUTO_TEST_SUITE_END()