cleaned up gamut warning code

rtengine/gamutwarning.h

@@ -0,0 +1,48 @@
+/* -*- C++ -*-
+ *
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2018 Alberto Griggio <alberto.griggio@gmail.com>
+ *
+ *  RawTherapee 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  RawTherapee 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 RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Adapted from PhotoFlow, Copyright (C) 2014 Ferrero Andrea
+ * also distributed under the GPL V3+
+ */
+
+#pragma once
+
+#include "iccstore.h"
+#include "noncopyable.h"
+#include "image8.h"
+
+namespace rtengine {
+
+class GamutWarning: public NonCopyable {
+public:
+    GamutWarning(cmsHPROFILE iprof, cmsHPROFILE gamutprof, bool bpc);
+    ~GamutWarning();
+    void markLine(Image8 *image, int y, float *srcbuf, float *buf1, float *buf2);
+    
+private:
+    void mark(Image8 *image, int i, int j);
+    
+    cmsHTRANSFORM lab2ref;
+    cmsHTRANSFORM lab2softproof;
+    cmsHTRANSFORM softproof2ref;
+};
+
+} // namespace rtengine