1 files changed, 76 insertions, 0 deletions
diff --git a/src/colour_conversion.h b/src/colour_conversion.h
new file mode 100644
index 00000000..9bb7c6ee
--- /dev/null
+++ b/src/colour_conversion.h
@@ -0,0 +1,76 @@
+/*
+    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+
+    This program 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,
+    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.
+
+*/
+
+#include <boost/shared_ptr.hpp>
+#include <boost/numeric/ublas/matrix.hpp>
+
+namespace dcp {
+
+class TransferFunction;
+
+class ColourConversion
+{
+public:
+	ColourConversion ()
+		: _matrix (3, 3)
+	{}
+	
+	ColourConversion (
+		boost::shared_ptr<const TransferFunction> in,
+		double const matrix[3][3],
+		boost::shared_ptr<const TransferFunction> out
+		);
+
+	boost::shared_ptr<const TransferFunction> in () const {
+		return _in;
+	}
+
+	boost::numeric::ublas::matrix<double> matrix () const {
+		return _matrix;
+	}
+
+	boost::shared_ptr<const TransferFunction> out () const {
+		return _out;
+	}
+
+	void set_in (boost::shared_ptr<const TransferFunction> f) {
+		_in = f;
+	}
+
+	void set_matrix (boost::numeric::ublas::matrix<double> m) {
+		_matrix = m;
+	}
+
+	void set_out (boost::shared_ptr<const TransferFunction> f) {
+		_out = f;
+	}
+
+	bool about_equal (ColourConversion const & other, float epsilon) const;
+
+	static ColourConversion srgb_to_xyz;
+	static ColourConversion xyz_to_rgb;
+	static ColourConversion rec709_to_xyz;
+
+protected:
+	boost::shared_ptr<const TransferFunction> _in;
+	boost::numeric::ublas::matrix<double> _matrix;
+	boost::shared_ptr<const TransferFunction> _out;
+};
+
+}