Extract common code out into kdm_for_screen()

[dcpomatic.git] / src / lib / colour_conversion.cc

diff --git a/src/lib/colour_conversion.cc b/src/lib/colour_conversion.cc
index 0625f059b21089924fd5d543914948c62d07c09c..2e052060e2b247ad9f26dbd51c54399b952f9c91 100644 (file)
--- a/src/lib/colour_conversion.cc
+++ b/src/lib/colour_conversion.cc
@@ -1,31 +1,33 @@
 /*
-    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2020 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/>.
 
 */
 
 #include "config.h"
 #include "colour_conversion.h"
 #include "util.h"
-#include "md5_digester.h"
-#include "raw_convert.h"
+#include "digester.h"
+#include <dcp/raw_convert.h>
 #include <dcp/chromaticity.h>
-#include <dcp/colour_matrix.h>
 #include <dcp/gamma_transfer_function.h>
 #include <dcp/modified_gamma_transfer_function.h>
+#include <dcp/identity_transfer_function.h>
+#include <dcp/s_gamut3_transfer_function.h>
 #include <libcxml/cxml.h>
 #include <libxml++/libxml++.h>
 #include <boost/foreach.hpp>
@@ -40,6 +42,7 @@ using std::vector;
 using boost::shared_ptr;
 using boost::optional;
 using boost::dynamic_pointer_cast;
+using dcp::raw_convert;
 
 vector<PresetColourConversion> PresetColourConversion::_presets;
 
@@ -74,6 +77,8 @@ ColourConversion::ColourConversion (cxml::NodePtr node, int version)
                                           in_node->number_child<double> ("A"),
                                           in_node->number_child<double> ("B")
                                           ));
+               } else if (in_type == "SGamut3") {
+                       _in.reset (new dcp::SGamut3TransferFunction ());
                }
 
        } else {
@@ -120,7 +125,12 @@ ColourConversion::ColourConversion (cxml::NodePtr node, int version)
                }
        }
 
-       _out.reset (new dcp::GammaTransferFunction (node->number_child<double> ("OutputGamma")));
+       optional<double> gamma = node->optional_number_child<double> ("OutputGamma");
+       if (gamma) {
+               _out.reset (new dcp::GammaTransferFunction (node->number_child<double> ("OutputGamma")));
+       } else {
+               _out.reset (new dcp::IdentityTransferFunction ());
+       }
 }
 
 boost::optional<ColourConversion>
@@ -148,9 +158,11 @@ ColourConversion::as_xml (xmlpp::Node* node) const
                in_node->add_child("Threshold")->add_child_text (raw_convert<string> (tf->threshold ()));
                in_node->add_child("A")->add_child_text (raw_convert<string> (tf->A ()));
                in_node->add_child("B")->add_child_text (raw_convert<string> (tf->B ()));
+       } else if (dynamic_pointer_cast<const dcp::SGamut3TransferFunction> (_in)) {
+               in_node->add_child("Type")->add_child_text ("SGamut3");
        }
 
-       node->add_child("YUVToRGB")->add_child_text (raw_convert<string> (_yuv_to_rgb));
+       node->add_child("YUVToRGB")->add_child_text (raw_convert<string> (static_cast<int> (_yuv_to_rgb)));
        node->add_child("RedX")->add_child_text (raw_convert<string> (_red.x));
        node->add_child("RedY")->add_child_text (raw_convert<string> (_red.y));
        node->add_child("GreenX")->add_child_text (raw_convert<string> (_green.x));
@@ -164,7 +176,10 @@ ColourConversion::as_xml (xmlpp::Node* node) const
                node->add_child("AdjustedWhiteY")->add_child_text (raw_convert<string> (_adjusted_white.get().y));
        }
 
-       node->add_child("OutputGamma")->add_child_text (raw_convert<string> (dynamic_pointer_cast<const dcp::GammaTransferFunction> (_out)->gamma ()));
+       if (dynamic_pointer_cast<const dcp::GammaTransferFunction> (_out)) {
+               shared_ptr<const dcp::GammaTransferFunction> gf = dynamic_pointer_cast<const dcp::GammaTransferFunction> (_out);
+               node->add_child("OutputGamma")->add_child_text (raw_convert<string> (gf->gamma ()));
+       }
 }
 
 optional<size_t>
@@ -186,7 +201,7 @@ ColourConversion::preset () const
 string
 ColourConversion::identifier () const
 {
-       MD5Digester digester;
+       Digester digester;
 
        if (dynamic_pointer_cast<const dcp::GammaTransferFunction> (_in)) {
                shared_ptr<const dcp::GammaTransferFunction> tf = dynamic_pointer_cast<const dcp::GammaTransferFunction> (_in);
@@ -213,7 +228,10 @@ ColourConversion::identifier () const
                digester.add (_adjusted_white.get().y);
        }
 
-       digester.add (dynamic_pointer_cast<const dcp::GammaTransferFunction> (_out)->gamma ());
+       shared_ptr<const dcp::GammaTransferFunction> gf = dynamic_pointer_cast<const dcp::GammaTransferFunction> (_out);
+       if (gf) {
+               digester.add (gf->gamma ());
+       }
 
        return digester.get ();
 }
@@ -264,6 +282,9 @@ PresetColourConversion::setup_colour_conversion_presets ()
        _presets.push_back (PresetColourConversion (_("Rec. 601"), "rec601", dcp::ColourConversion::rec601_to_xyz ()));
        _presets.push_back (PresetColourConversion (_("Rec. 709"), "rec709", dcp::ColourConversion::rec709_to_xyz ()));
        _presets.push_back (PresetColourConversion (_("P3"), "p3", dcp::ColourConversion::p3_to_xyz ()));
+       _presets.push_back (PresetColourConversion (_("Rec. 1886"), "rec1886", dcp::ColourConversion::rec1886_to_xyz ()));
+       _presets.push_back (PresetColourConversion (_("Rec. 2020"), "rec2020", dcp::ColourConversion::rec2020_to_xyz ()));
+       _presets.push_back (PresetColourConversion (_("S-Gamut3/S-Log3"), "sgamut3", dcp::ColourConversion::s_gamut3_to_xyz ()));
 }
 
 PresetColourConversion