DtIndirectBlendEquation.h

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/******************************************************************************
** Copyright (c) 2020 VT-MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <ostream>

namespace makVrv
{
   // The blend factors enum
   enum DtIndirectBlendEquationMode
   {
        MODE_ADD
      , MODE_SUBTRACT
      , MODE_REVERSE_SUBTRACT
      , MODE_MIN
      , MODE_MAX
   };

   class DT_DLL_VRVOSG DtIndirectBlendEquation
   {
   public:
      DtIndirectBlendEquation();

      DtIndirectBlendEquation(DtIndirectBlendEquationMode mode);

      DtIndirectBlendEquation(const DtIndirectBlendEquation& other);

      DtIndirectBlendEquation &operator=(const DtIndirectBlendEquation &other);

      ~DtIndirectBlendEquation();
   public:
      const DtIndirectBlendEquationMode& mode(void) const;

      void apply(void) const;

   protected:
      DtIndirectBlendEquationMode myMode;
   };

   std::ostream& operator <<(std::ostream& o, const DtIndirectBlendEquation& blendFunction);
}