DtHbaoPostProcessor.h

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/*****************************************************************************
* Copyright (c) 2021 MAK Technologies, Inc.
* All rights reserved.
*****************************************************************************/

#pragma once


// Get proper local export symbol
#include <vrvPostProcessor/vrvPostProcessor.h>

#include <vrvPostProcessor/DtPostProcessor.h>
#include <vrvPostProcessor/DtHbaoDrawable.h>

#include <vrvUtil/DtVirtualBaseClassCreator.h>

namespace makVrv 
{ 
   class DtHbaoDrawable;
   class DtWindow;

   

   class DT_DLL_VRVPOSTPROCESSOR DtHbaoPostProcessor : public DtPostProcessor
   {
   public:
      DtHbaoPostProcessor(DtDe& de, const std::string& postProcessType, bool handles2D);

      virtual ~DtHbaoPostProcessor();
   
      DtHbaoPostProcessor() = delete;

      DtHbaoPostProcessor(const DtHbaoPostProcessor&) = delete;

      DtHbaoPostProcessor& operator=(const DtHbaoPostProcessor&) = delete;

   public:

      //Reload shaders when the shared state reload shaders signal is called
      virtual void slot_reloadShaders();

      virtual bool update(DtChannel *channel) override;

      virtual void setInputTexture(const DtChannel* channel, osg::Texture* texture) override;

      //Hbao needs an occlusion texture for handling hbao and transparency like particle systems.
      virtual bool needsOcclusionTexture() const override;

      const static std::string theEffectName;

   protected:
      osg::ref_ptr<DtHbaoDrawable> myHbaoDrawable;      
      DtSignalConnectionManager myConnections;
   };

   // 
   // Creator
   //

   class DT_DLL_VRVPOSTPROCESSOR DtHbaoPostProcessorCreator
      : public DtPostProcessorCreator
   {
   public:
      friend class DtPostProcessManager;

      DtHbaoPostProcessorCreator();

      virtual ~DtHbaoPostProcessorCreator();

   protected:
      virtual DtPostProcessor* create(DtDe& de, const std::string& postProcessType);
   };
  
}