SoShaderParameterImage.h

/*==============================================================================
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**                   COPYRIGHT (C) 1996-2024 BY FEI S.A.S,                    **
**                              BORDEAUX, FRANCE                              **
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==============================================================================*/
 
#pragma once
 
#include <Inventor/nodes/SoNode.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFNode.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/SbEnums.h>
#include <Inventor/nodes/SoShaderParameter.h>
 
class SoTexture;
 
class  SoShaderParameterImage : public SoShaderParameter
{
  SO_NODE_HEADER(SoShaderParameterImage);
  RENDERER_RESOURCE(SoShaderParameterImage);
 
public:
  SoSFNode texture;
 
  SoSFInt32 layer;
 
  enum AccessMode
  {
    READ = SbEnums::READ,
 
    WRITE = SbEnums::WRITE,
 
    READ_WRITE = SbEnums::READ_WRITE,
  };
 
  SoSFEnum accessMode;
 
  SoShaderParameterImage();
 
private:
  void GLRender(SoGLRenderAction* action);
 
private:
  static void initClass();
  static void exitClass();
 
  void setAssignedUnit(int unit)
  {
    m_assignedUnit = unit;
  }
 
  int getAssignedUnit() const
  {
    return m_assignedUnit;
  }
 
  static const SbString& getGLSLFormatLayout(SoTexture* texture);
 
  void fieldHasChanged(SoField* field) override;
 
private:
  virtual ~SoShaderParameterImage();
 
private:
  int m_assignedUnit;
};