vtkCompositeZPass.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkCompositeZPass_h
#define vtkCompositeZPass_h
 
#include "vtkRenderPass.h"
#include "vtkRenderingParallelModule.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkMultiProcessController;
 
class vtkPixelBufferObject;
class vtkTextureObject;
class vtkOpenGLRenderWindow;
class vtkOpenGLHelper;
 
class VTKRENDERINGPARALLEL_EXPORT vtkCompositeZPass : public vtkRenderPass
{
public:
  static vtkCompositeZPass* New();
  vtkTypeMacro(vtkCompositeZPass, vtkRenderPass);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void Render(const vtkRenderState* s) override;

  void ReleaseGraphicsResources(vtkWindow* w) override;


  vtkGetObjectMacro(Controller, vtkMultiProcessController);
  virtual void SetController(vtkMultiProcessController* controller);

  bool IsSupported(vtkOpenGLRenderWindow* context);
 
protected:
  vtkCompositeZPass();

  ~vtkCompositeZPass() override;

  void CreateProgram(vtkOpenGLRenderWindow* context);
 
  vtkMultiProcessController* Controller;
 
  vtkPixelBufferObject* PBO;
  vtkTextureObject* ZTexture;
  vtkOpenGLHelper* Program;
  float* RawZBuffer;
  size_t RawZBufferSize;
 
private:
  vtkCompositeZPass(const vtkCompositeZPass&) = delete;
  void operator=(const vtkCompositeZPass&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif