vtkStructuredGridLIC2D.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkStructuredGridLIC2D.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkStructuredGridLIC2D_h
#define vtkStructuredGridLIC2D_h

#include "vtkRenderingLICOpenGL2Module.h" // For export macro
#include "vtkStructuredGridAlgorithm.h"
#include "vtkWeakPointer.h" // needed for vtkWeakPointer.

class vtkImageNoiseSource;
class vtkOpenGLHelper;
class vtkRenderWindow;

class VTKRENDERINGLICOPENGL2_EXPORT vtkStructuredGridLIC2D
  : public vtkStructuredGridAlgorithm
{
public:
  static vtkStructuredGridLIC2D* New();
  vtkTypeMacro(vtkStructuredGridLIC2D, vtkStructuredGridAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  int SetContext( vtkRenderWindow * context );
  vtkRenderWindow * GetContext();


  vtkSetMacro(Steps,int);
  vtkGetMacro(Steps,int);


  vtkSetMacro(StepSize,double);
  vtkGetMacro(StepSize,double);


  vtkSetClampMacro(Magnification, int, 1, VTK_INT_MAX);
  vtkGetMacro(Magnification, int);

  int   GetFBOSuccess() { return this->FBOSuccess; }

  int   GetLICSuccess() { return this->LICSuccess; }

protected:
  vtkStructuredGridLIC2D();
  ~vtkStructuredGridLIC2D() override;

  int FillInputPortInformation(int port,
                               vtkInformation *info) override;

  int FillOutputPortInformation(int port,
                                vtkInformation *info) override;

  int RequestInformation(vtkInformation *request,
         vtkInformationVector **inputVector,
         vtkInformationVector *outputVector) override;

  int RequestUpdateExtent (vtkInformation *request,
                           vtkInformationVector **inputVector,
                           vtkInformationVector *outputVector) override;

  void AllocateOutputData(vtkDataObject *output,
                          vtkInformation *outInfo);

  void AllocateScalars(vtkStructuredGrid *sg, vtkInformation *outInfo);

  int RequestData(vtkInformation *request,
                          vtkInformationVector **inputVector,
                          vtkInformationVector *outputVector) override;

  int    Steps;
  double StepSize;
  int    Magnification;
  vtkWeakPointer<vtkRenderWindow> Context;

  vtkImageNoiseSource* NoiseSource;
  bool   OwnWindow;
  int    FBOSuccess;
  int    LICSuccess;
  vtkOpenGLHelper *LICProgram;

private:
  vtkStructuredGridLIC2D(const vtkStructuredGridLIC2D&) = delete;
  void operator=(const vtkStructuredGridLIC2D&) = delete;

};

#endif