SoView2DExtensionSampler.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#pragma once
 
#include "SoView2DExtension.h"
 
#include "SoView2DExtensionElement.h"
 
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFTrigger.h>
 
#include "shaderpipeline/SoView2DShaderElement.h"
 
 
class SOVIEW2D_API SoView2DExtensionSampler : public SoView2DExtension
{
  SO_NODE_HEADER(SoView2DExtensionSampler);
 
public:
 
  SoSFString overlayName;

  SoSFTypedEnum<View2DTextureFilter> filterMode;

  SoSFTypedEnum<View2DBlendMode> blendMode;

  SoSFBool  enableMultiSampling;
  SoSFInt32 multiSampling;


  static void   initClass();

  SoView2DExtensionSampler();

  void   draw(View2DSliceList *dsl, View2DSlice* dslice, int slice) override;

  bool  evaluateEvent(SoView2D *view2d, View2DEvent* ec) override;

  void   startDrawing(View2DSliceList* slicelist) override;

  void   endDrawing(View2DSliceList* slicelist) override;
 
protected:
  ~SoView2DExtensionSampler() override;

  void     doAction(SoAction *action) override;
 
private:
  SoNodeList _extensions;

  SoView2DShaderOverlayInfo _overlayInfo;
 
  ml::GLFrameBuffer _fbo;
  View2DTexture     _texture;
  ml::GLFrameBuffer  _msaaFbo;
  ml::GLRenderBuffer _msaaColorBuffer;
  int _usedMultiSampling;
};