vtkSSAAPass.h

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

#include "vtkRenderPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkSmartPointer.h"           // for vtkSmartPointer
#include "vtkTextureObject.h"          // for depth/color format
#include "vtkWrappingHints.h"          // For VTK_MARSHALAUTO

#include <memory> // for unique_ptr

VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLFramebufferObject;
class vtkOpenGLHelper;
class vtkRenderbuffer;

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

  void Render(const vtkRenderState* s) override;

  void ReleaseGraphicsResources(vtkWindow* w) override;


  vtkGetObjectMacro(DelegatePass, vtkRenderPass);
  virtual void SetDelegatePass(vtkRenderPass* delegatePass);


  vtkSetMacro(ColorFormat, int);
  vtkGetMacro(ColorFormat, int);


  vtkSetMacro(DepthFormat, int);
  vtkGetMacro(DepthFormat, int);

protected:
  vtkSSAAPass();

  ~vtkSSAAPass() override;

  vtkSmartPointer<vtkOpenGLFramebufferObject> FrameBufferObject;
  vtkSmartPointer<vtkTextureObject> Pass1; // render target for the scene (modifiedW x modifiedH)
  vtkSmartPointer<vtkTextureObject> Pass2; // render target for the horizontal pass (W x modifiedH)
  vtkSmartPointer<vtkTextureObject> DepthTexture1; // depth target paired with Pass1
  vtkSmartPointer<vtkTextureObject> DepthTexture2; // depth target paired with Pass2

  // Structures for the various cell types we render.
  std::unique_ptr<vtkOpenGLHelper> SSAAHelper;

  vtkSmartPointer<vtkRenderPass> DelegatePass;

private:
  vtkSSAAPass(const vtkSSAAPass&) = delete;
  void operator=(const vtkSSAAPass&) = delete;

  int ColorFormat = vtkTextureObject::Fixed8;  // framebuffer color texture format
  int DepthFormat = vtkTextureObject::Fixed24; // framebuffer depth texture format
};

VTK_ABI_NAMESPACE_END
#endif