SoView2DShaderState.h

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/*************************************************************************************
**
** Copyright 2015, 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 "SoView2DSystem.h"
#include "SoView2DShaderDefinition.h"
#include <vector>
#include <Inventor/SbBasic.h>
#include "View2DSlice.h"
#include "View2DTexture.h"
 
class SoState;
class View2DTexture;
class SoView2DShaderOverlayInfo;
 
class SoView2DShaderState
{
public:
  SoView2DShaderState();
 
  void setupFromState(const std::vector<SoView2DShaderOverlayInfo*>& overlays, const std::vector<size_t>& nodeIds);
 
  bool isEqual(const SoView2DShaderState& other);
 
private:
 
  class OverlayCacheInfo
  {
  public:
    OverlayCacheInfo() {
      _blendMode = BLEND_REPLACE;
      _filter = FILTER_LINEAR;
      _hasLut = false;
      _16bitLut = false;
      _channels = 0;
    }
    OverlayCacheInfo(const SoView2DShaderOverlayInfo& info);
 
    bool equals(const OverlayCacheInfo& other) const;
 
    std::string _name;
    View2DBlendMode _blendMode;
    View2DTextureFilter _filter;
    bool _hasLut;
    bool _16bitLut;
    int _channels;
  };
 
  std::vector<size_t> _nodeIds;
  bool _valid;
  std::vector<OverlayCacheInfo> _overlays;
};