dox/Hybrid/vtkKWEImageGradientMagnitude.h

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//=============================================================================
//   This file is part of VTKEdge. See vtkedge.org for more information.
//
//   Copyright (c) 2010 Kitware, Inc.
//
//   VTKEdge may be used under the terms of the BSD License
//   Please see the file Copyright.txt in the root directory of
//   VTKEdge for further information.
//
//   Alternatively, you may see:  
//
//   http://www.vtkedge.org/vtkedge/project/license.html
// 
//
//   For custom extensions, consulting services, or training for
//   this or any other Kitware supported open source project, please
//   contact Kitware at sales@kitware.com.
//
//
//=============================================================================
#ifndef __vtkKWEImageGradientMagnitude_h
#define __vtkKWEImageGradientMagnitude_h

#include "vtkKWEGPUImageAlgorithmDriver.h"

class vtkShaderProgram2;
class VTKEdge_HYBRID_EXPORT vtkKWEImageGradientMagnitude : public vtkKWEGPUImageAlgorithmDriver
{
public:
  static vtkKWEImageGradientMagnitude* New();
  vtkTypeRevisionMacro(vtkKWEImageGradientMagnitude, vtkKWEGPUImageAlgorithmDriver);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetClampMacro(Dimensionality,int,2,3);
  vtkGetMacro(Dimensionality,int);

//BTX
protected:
  vtkKWEImageGradientMagnitude();
  ~vtkKWEImageGradientMagnitude();


  virtual ExtentTypes GetSplitMode(vtkInformation* request,
    vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);


  virtual int MapOutputExtentToInput(int input_extent[6],
    int port, int connection,
    vtkInformation* inInfo, const int output_extent[6]);


  virtual bool Execute(vtkBuses* upBuses, vtkDataTransferHelper* downBus);
  virtual void Execute() { this->Superclass::Execute(); }


  bool InitializeExecution(
    vtkInformation* request,
    vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);


  bool FinalizeExecution(
    vtkInformation* request,
    vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);

  int Dimensionality;
  vtkSmartPointer<vtkShaderProgram2> GLSLProgram;

  double SpacingReciprocal[3];
private:
  vtkKWEImageGradientMagnitude(const vtkKWEImageGradientMagnitude&); // Not implemented.
  void operator=(const vtkKWEImageGradientMagnitude&); // Not implemented.
//ETX
};

#endif