SoView2DShaderBuiltInFunctions.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 <ShaderPipeline/ShaderPipeline.h>
#include <ShaderPipeline/ShaderPipelineFunction.h>
#include <ShaderPipeline/ShaderPipelineContext.h>
#include <ShaderPipeline/ShaderPipelineTargetContext.h>
 
#include "SoView2DShaderDefinition.h"
#include "SoView2DShaderState.h"
 
class SoView2DShaderOverlayInfo;
 
namespace SoView2DShaderBuiltInFunctions
{
 
#define SO_DECLARE_PIPELINE_FUNCTION_CLASS(className,baseClassName) \
  class SOVIEW2D_API className: public baseClassName \
  { \
  public: \
  className (): baseClassName() {}; \
  protected: \
  virtual void appendFunctionBody(std::stringstream& str, ShaderPipelineTargetContext& context) const; \
  virtual void updateContext(ShaderPipelineContext& context) const; \
};
 
  class SOVIEW2D_API SoView2DShaderFunction : public ShaderPipelineFunction
  {
  public:
    SoView2DShaderFunction(): ShaderPipelineFunction() { _state = nullptr; };
 
    void setState(const SoView2DShaderState* state) {
      _state = state;
    }
 
  protected:
    const SoView2DShaderState* _state;
  };
 
  class SOVIEW2D_API SoView2DOverlayShaderFunction : public SoView2DShaderFunction
  {
  public:
    SoView2DOverlayShaderFunction() : SoView2DShaderFunction() { _overlay = nullptr; };
 
    void setOverlay(const SoView2DShaderOverlayInfo* overlay) {
      _overlay = overlay;
    }
 
    void appendName(std::stringstream& str) const override;
 
  protected:
    const SoView2DShaderOverlayInfo* _overlay;
  };
 
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(SetupState, SoView2DShaderFunction);
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(SetupOverlay, SoView2DOverlayShaderFunction);
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(CheckInsideOverlay, SoView2DOverlayShaderFunction);
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(FetchOverlay, SoView2DOverlayShaderFunction);
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(ClassifyOverlay, SoView2DOverlayShaderFunction);
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(CompositeOverlay, SoView2DOverlayShaderFunction);
  SO_DECLARE_PIPELINE_FUNCTION_CLASS(WriteFragment, SoView2DShaderFunction);
}