/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
+
/** @file test/colour_conversion_test.cc
- * @brief Basic test of identifier() for ColourConversion (i.e. a hash of the numbers)
+ * @brief Test ColourConversion class.
+ * @ingroup selfcontained
*/
-#include <boost/test/unit_test.hpp>
-#include <dcp/colour_matrix.h>
+
#include "lib/colour_conversion.h"
+#include "lib/film.h"
+#include <dcp/gamma_transfer_function.h>
+#include <libxml++/libxml++.h>
+#include <boost/test/unit_test.hpp>
+#include <iostream>
+
using std::cout;
+using std::make_shared;
+
-BOOST_AUTO_TEST_CASE (colour_conversion_test)
+BOOST_AUTO_TEST_CASE (colour_conversion_test1)
{
- ColourConversion A (2.4, true, dcp::colour_matrix::srgb_to_xyz, 2.6);
- ColourConversion B (2.4, false, dcp::colour_matrix::srgb_to_xyz, 2.6);
+ ColourConversion A (dcp::ColourConversion::srgb_to_xyz());
+ ColourConversion B (dcp::ColourConversion::rec709_to_xyz());
+
+ BOOST_CHECK_EQUAL (A.identifier(), "9840c601d2775bf1b3847254bbaa36a9");
+ BOOST_CHECK_EQUAL (B.identifier(), "58151ac92fdf333663a62c9a8ba5c5f4");
+}
+
- BOOST_CHECK_EQUAL (A.identifier(), "246ff9b7dc32c0488948a32a713924b3");
- BOOST_CHECK_EQUAL (B.identifier(), "a8d1da30f96a121d8db06a03409758b3");
+BOOST_AUTO_TEST_CASE (colour_conversion_test2)
+{
+ ColourConversion A (dcp::ColourConversion::srgb_to_xyz ());
+ xmlpp::Document doc;
+ auto root = doc.create_root_node ("Test");
+ A.as_xml (root);
+ BOOST_CHECK_EQUAL (
+ doc.write_to_string_formatted ("UTF-8"),
+ "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<Test>\n"
+ " <InputTransferFunction>\n"
+ " <Type>ModifiedGamma</Type>\n"
+ " <Power>2.4</Power>\n"
+ " <Threshold>0.04045</Threshold>\n"
+ " <A>0.055</A>\n"
+ " <B>12.92</B>\n"
+ " </InputTransferFunction>\n"
+ " <YUVToRGB>0</YUVToRGB>\n"
+ " <RedX>0.64</RedX>\n"
+ " <RedY>0.33</RedY>\n"
+ " <GreenX>0.3</GreenX>\n"
+ " <GreenY>0.6</GreenY>\n"
+ " <BlueX>0.15</BlueX>\n"
+ " <BlueY>0.06</BlueY>\n"
+ " <WhiteX>0.3127</WhiteX>\n"
+ " <WhiteY>0.329</WhiteY>\n"
+ " <OutputGamma>2.6</OutputGamma>\n"
+ "</Test>\n"
+ );
+}
+
+
+BOOST_AUTO_TEST_CASE (colour_conversion_test3)
+{
+ ColourConversion A (dcp::ColourConversion::rec709_to_xyz());
+ xmlpp::Document doc;
+ auto root = doc.create_root_node ("Test");
+ A.as_xml (root);
+ BOOST_CHECK_EQUAL (
+ doc.write_to_string_formatted ("UTF-8"),
+ "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<Test>\n"
+ " <InputTransferFunction>\n"
+ " <Type>Gamma</Type>\n"
+ " <Gamma>2.2</Gamma>\n"
+ " </InputTransferFunction>\n"
+ " <YUVToRGB>1</YUVToRGB>\n"
+ " <RedX>0.64</RedX>\n"
+ " <RedY>0.33</RedY>\n"
+ " <GreenX>0.3</GreenX>\n"
+ " <GreenY>0.6</GreenY>\n"
+ " <BlueX>0.15</BlueX>\n"
+ " <BlueY>0.06</BlueY>\n"
+ " <WhiteX>0.3127</WhiteX>\n"
+ " <WhiteY>0.329</WhiteY>\n"
+ " <OutputGamma>2.6</OutputGamma>\n"
+ "</Test>\n"
+ );
+}
+
+
+/** Test a round trip via the XML representation */
+BOOST_AUTO_TEST_CASE (colour_conversion_test4)
+{
+ for (auto const& i: PresetColourConversion::all()) {
+ xmlpp::Document out;
+ auto out_root = out.create_root_node("Test");
+ i.conversion.as_xml (out_root);
+ auto in = make_shared<cxml::Document> ("Test");
+ in->read_string (out.write_to_string("UTF-8"));
+ BOOST_CHECK (ColourConversion::from_xml(in, Film::current_state_version).get() == i.conversion);
+ }
}