text: /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    vtkPLineIntegralConvolution2D.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.
  
  =========================================================================*/
  /**
   * @class   vtkPLineIntegralConvolution2D
   * @brief   parallel part of GPU-based
   * implementation of Line Integral Convolution (LIC)
   *
   *
   * Implements the parallel parts of the algorithm.
   *
   * @sa
   *  vtkPLineIntegralConvolution2D
   */
  
  #ifndef vtkPLineIntegralConvolution2D_h
  #define vtkPLineIntegralConvolution2D_h
  
  #include "vtkLineIntegralConvolution2D.h"
  #include "vtkRenderingParallelLICModule.h" // for export macro
  #include <string>                          // for string
  
  class vtkPainterCommunicator;
  class vtkPPainterCommunicator;
  
  class VTKRENDERINGPARALLELLIC_EXPORT vtkPLineIntegralConvolution2D
    : public vtkLineIntegralConvolution2D
  {
  public:
    static vtkPLineIntegralConvolution2D* New();
    vtkTypeMacro(vtkPLineIntegralConvolution2D, vtkLineIntegralConvolution2D);
    void PrintSelf(ostream& os, vtkIndent indent) override;
  
    ///@{
    /**
     * Set the communicator to use during parallel operation
     * The communicator will not be duplicated or reference
     * counted for performance reasons thus caller should
     * hold/manage reference to the communicator during use
     * of the LIC object.
     */
    void SetCommunicator(vtkPainterCommunicator*) override;
    vtkPainterCommunicator* GetCommunicator() override;
    ///@}
  
    /**
     * For parallel operation, find global min/max
     * min/max are in/out.
     */
    void GetGlobalMinMax(vtkPainterCommunicator* comm, float& min, float& max) override;
  
    /**
     * Methods used for parallel benchmarks. Use cmake to define
     * vtkLineIntegralConviolution2DTIME to enable benchmarks.
     * During each update timing information is stored, it can
     * be written to disk by calling WriteLog.
     */
    void WriteTimerLog(const char* fileName) override;
  
  protected:
    vtkPLineIntegralConvolution2D();
    ~vtkPLineIntegralConvolution2D() override;
  
    ///@{
    /**
     * Methods used for parallel benchmarks. Use cmake to define
     * vtkSurfaceLICPainterTIME to enable benchmarks. During each
     * update timing information is stored, it can be written to
     * disk by calling WriteLog. Note: Some of the timings are
     * enabled by the surface lic painter.
     */
    void StartTimerEvent(const char* name) override;
    void EndTimerEvent(const char* name) override;
    ///@}
  
  private:
    std::string LogFileName;
  
  private:
    vtkPLineIntegralConvolution2D(const vtkPLineIntegralConvolution2D&) = delete;
    void operator=(const vtkPLineIntegralConvolution2D&) = delete;
  };
  
  #endif
  