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

  Program:   Visualization Toolkit
  Module:    vtkPistonMapper.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 vtkPistonMapper_h
#define vtkPistonMapper_h

#include "vtkAcceleratorsPistonModule.h" // For export macro
#include "vtkMapper.h"

class vtkActor;
class vtkRenderer;
class vtkPistonDataObject;
class vtkPistonScalarsColors;
class vtkRenderWindow;
class vtkWindow;

class VTKACCELERATORSPISTON_EXPORT vtkPistonMapper : public vtkMapper
{
public:
  static vtkPistonMapper *New();
  vtkTypeMacro(vtkPistonMapper,vtkMapper);
  void PrintSelf(ostream& os, vtkIndent indent);

  static void InitCudaGL(vtkRenderWindow *rw);


  inline static bool IsEnabledCudaGL()
    {
    return CudaGLInitted;
    }

  vtkPistonDataObject *GetPistonDataObjectInput(int port);

  void ShallowCopy(vtkAbstractMapper *m);

  virtual void Render(vtkRenderer *ren, vtkActor *a);

  virtual void ReleaseGraphicsResources(vtkWindow *) {}


  virtual double *GetBounds();
  virtual void GetBounds(double bounds[6])
    {this->vtkAbstractMapper3D::GetBounds(bounds);};


  virtual bool GetSupportsSelection()
    { return false; }


  virtual void Update();
  // Use the other overloads of Update.
  using vtkAlgorithm::Update;


  vtkSetMacro(Piece, int);
  vtkGetMacro(Piece, int);
  vtkSetMacro(NumberOfPieces, int);
  vtkGetMacro(NumberOfPieces, int);


  vtkSetMacro(GhostLevel, int);
  vtkGetMacro(GhostLevel, int);

protected:
  vtkPistonMapper();
  ~vtkPistonMapper();

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


  void RenderOnCPU();
  void RenderOnGPU();
  void RenderImageDataOutline();

  int Piece;
  int NumberOfPieces;
  int GhostLevel;

private:
  vtkPistonMapper(const vtkPistonMapper&); // Not implemented.
  void operator=(const vtkPistonMapper&);  // Not implemented.

  void PrepareDirectRenderBuffers(int nPoints);

  static bool CudaGLInitted;

  class InternalInfo;
  InternalInfo *Internal;
};

#endif