test/colour_conversion_test.cc

   1 /*
   2     Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /** @file  test/colour_conversion_test.cc
  21  *  @brief Various tests of ColourConversion.
  22  */
  23
  24 #include "lib/colour_conversion.h"
  25 #include <dcp/colour_matrix.h>
  26 #include <dcp/gamma_transfer_function.h>
  27 #include <libxml++/libxml++.h>
  28 #include <boost/test/unit_test.hpp>
  29
  30 using std::cout;
  31 using boost::shared_ptr;
  32
  33 BOOST_AUTO_TEST_CASE (colour_conversion_test1)
  34 {
  35         ColourConversion A (dcp::ColourConversion::srgb_to_xyz);
  36         ColourConversion B (dcp::ColourConversion::rec709_to_xyz);
  37
  38         BOOST_CHECK_EQUAL (A.identifier(), "8b5a265a7c63c22a6a8fc871c64d6116");
  39         BOOST_CHECK_EQUAL (B.identifier(), "bc82e69f700d0426f2ae1848d05ed006");
  40 }
  41
  42 BOOST_AUTO_TEST_CASE (colour_conversion_test2)
  43 {
  44         ColourConversion A (dcp::ColourConversion::srgb_to_xyz);
  45         xmlpp::Document doc;
  46         xmlpp::Element* root = doc.create_root_node ("Test");
  47         A.as_xml (root);
  48         BOOST_CHECK_EQUAL (
  49                 doc.write_to_string_formatted ("UTF-8"),
  50                 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  51                 "<Test>\n"
  52                 "  <InputTransferFunction>\n"
  53                 "    <Type>ModifiedGamma</Type>\n"
  54                 "    <Power>2.400000095367432</Power>\n"
  55                 "    <Threshold>0.04044999927282333</Threshold>\n"
  56                 "    <A>0.05499999970197678</A>\n"
  57                 "    <B>12.92000007629395</B>\n"
  58                 "  </InputTransferFunction>\n"
  59                 "  <Matrix i=\"0\" j=\"0\">0.4124564</Matrix>\n"
  60                 "  <Matrix i=\"0\" j=\"1\">0.3575761</Matrix>\n"
  61                 "  <Matrix i=\"0\" j=\"2\">0.1804375</Matrix>\n"
  62                 "  <Matrix i=\"1\" j=\"0\">0.2126729</Matrix>\n"
  63                 "  <Matrix i=\"1\" j=\"1\">0.7151522</Matrix>\n"
  64                 "  <Matrix i=\"1\" j=\"2\">0.072175</Matrix>\n"
  65                 "  <Matrix i=\"2\" j=\"0\">0.0193339</Matrix>\n"
  66                 "  <Matrix i=\"2\" j=\"1\">0.119192</Matrix>\n"
  67                 "  <Matrix i=\"2\" j=\"2\">0.9503041</Matrix>\n"
  68                 "  <OutputGamma>2.599999904632568</OutputGamma>\n"
  69                 "</Test>\n"
  70                 );
  71 }
  72
  73 BOOST_AUTO_TEST_CASE (colour_conversion_test3)
  74 {
  75         ColourConversion A (dcp::ColourConversion::rec709_to_xyz);
  76         xmlpp::Document doc;
  77         xmlpp::Element* root = doc.create_root_node ("Test");
  78         A.as_xml (root);
  79         BOOST_CHECK_EQUAL (
  80                 doc.write_to_string_formatted ("UTF-8"),
  81                 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  82                 "<Test>\n"
  83                 "  <InputTransferFunction>\n"
  84                 "    <Type>ModifiedGamma</Type>\n"
  85                 "    <Power>2.400000095367432</Power>\n"
  86                 "    <Threshold>0.08100000023841858</Threshold>\n"
  87                 "    <A>0.0989999994635582</A>\n"
  88                 "    <B>4.5</B>\n"
  89                 "  </InputTransferFunction>\n"
  90                 "  <Matrix i=\"0\" j=\"0\">0.4124564</Matrix>\n"
  91                 "  <Matrix i=\"0\" j=\"1\">0.3575761</Matrix>\n"
  92                 "  <Matrix i=\"0\" j=\"2\">0.1804375</Matrix>\n"
  93                 "  <Matrix i=\"1\" j=\"0\">0.2126729</Matrix>\n"
  94                 "  <Matrix i=\"1\" j=\"1\">0.7151522</Matrix>\n"
  95                 "  <Matrix i=\"1\" j=\"2\">0.072175</Matrix>\n"
  96                 "  <Matrix i=\"2\" j=\"0\">0.0193339</Matrix>\n"
  97                 "  <Matrix i=\"2\" j=\"1\">0.119192</Matrix>\n"
  98                 "  <Matrix i=\"2\" j=\"2\">0.9503041</Matrix>\n"
  99                 "  <OutputGamma>2.599999904632568</OutputGamma>\n"
 100                 "</Test>\n"
 101                 );
 102 }