vtkGaussianBlurPass.h

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

#include "vtkImageProcessingPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkWrappingHints.h"          // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class vtkDepthPeelingPassLayerList; // Pimpl
class vtkOpenGLFramebufferObject;
class vtkOpenGLHelper;
class vtkOpenGLRenderWindow;
class vtkTextureObject;

class VTKRENDERINGOPENGL2_EXPORT VTK_MARSHALAUTO vtkGaussianBlurPass : public vtkImageProcessingPass
{
public:
  static vtkGaussianBlurPass* New();
  vtkTypeMacro(vtkGaussianBlurPass, vtkImageProcessingPass);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void Render(const vtkRenderState* s) override;

  void ReleaseGraphicsResources(vtkWindow* w) override;

protected:
  vtkGaussianBlurPass();

  ~vtkGaussianBlurPass() override;

  vtkOpenGLFramebufferObject* FrameBufferObject;
  vtkTextureObject* Pass1; // render target for the scene
  vtkTextureObject* Pass2; // render target for the horizontal pass

  // Structures for the various cell types we render.
  vtkOpenGLHelper* BlurProgram;

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

VTK_ABI_NAMESPACE_END
#endif