vtkGLSLModifierBase.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkGLSLModifierBase_h
#define vtkGLSLModifierBase_h

#include "vtkObject.h"

#include "vtkRenderingOpenGL2Module.h" // for export macro

VTK_ABI_NAMESPACE_BEGIN
class vtkAbstractMapper;
class vtkActor;
class vtkInformationObjectBaseKey;
class vtkOpenGLVertexArrayObject;
class vtkOpenGLRenderer;
class vtkShaderProgram;

class VTKRENDERINGOPENGL2_EXPORT vtkGLSLModifierBase : public vtkObject
{
public:
  vtkTypeMacro(vtkGLSLModifierBase, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetPrimitiveType(unsigned int primType) { this->PrimitiveType = primType; }

  virtual bool ReplaceShaderValues(vtkOpenGLRenderer* renderer, std::string& vertexShader,
    std::string& tessControlShader, std::string& tessEvalShader, std::string& geometryShader,
    std::string& fragmentShader, vtkAbstractMapper* mapper, vtkActor* actor) = 0;
  virtual bool SetShaderParameters(vtkOpenGLRenderer* renderer, vtkShaderProgram* program,
    vtkAbstractMapper* mapper, vtkActor* actor, vtkOpenGLVertexArrayObject* VAO = nullptr) = 0;

  virtual bool IsUpToDate(
    vtkOpenGLRenderer* renderer, vtkAbstractMapper* mapper, vtkActor* actor) = 0;

  static vtkInformationObjectBaseKey* GLSL_MODIFIERS();

protected:
  vtkGLSLModifierBase();
  ~vtkGLSLModifierBase() override;

  unsigned int PrimitiveType = 0;

private:
  vtkGLSLModifierBase(const vtkGLSLModifierBase&) = delete;
  void operator=(const vtkGLSLModifierBase&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif