Servers/Filters/vtkTiledDisplaySchedule.h

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

  Program:   ParaView
  Module:    $RCSfile: vtkTiledDisplaySchedule.h,v $

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 __vtkTiledDisplaySchedule_h
#define __vtkTiledDisplaySchedule_h

#include "vtkObject.h"
class vtkTiledDisplayProcess;
class vtkTiledDisplayElement;

class VTK_EXPORT vtkTiledDisplaySchedule : public vtkObject
{
public:
  static vtkTiledDisplaySchedule *New();
  vtkTypeRevisionMacro(vtkTiledDisplaySchedule,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);


  int GetProcessTileId(int procIdx);
  int GetNumberOfProcessElements(int procIdx);
  int GetElementOtherProcessId(int procIdx, int elementIdx);
  int GetElementReceiveFlag(int procIdx, int elementIdx);
  int GetElementTileId(int procIdx, int elementIdx);


  vtkGetMacro(NumberOfProcesses,int);


  vtkGetMacro(NumberOfTiles,int);

  void InitializeForTile(int tileId, int tileProcess, int numProcs);

  void InitializeTiles(int numberOfTiles, int numProcs);


protected:
  vtkTiledDisplaySchedule();
  ~vtkTiledDisplaySchedule();

  // Swaps processes if benefits global totals.
  // Also recomputes global totals.
  int SwapIfApproporiate(int pid1, int pid2,
                         int* totalProcessLengths);
  void ComputeElementOtherProcessIds();

  int ShuffleLevel(int level, int numTiles, 
                   vtkTiledDisplaySchedule** tileSchedules);
  int FindOtherElementIdx(vtkTiledDisplayProcess* p, 
                          vtkTiledDisplayElement* e,
                          int pId);


  int NumberOfProcesses; // User set.
  int NumberOfTiles;

  int ProcessArrayLength; // Set durring allocation.
  vtkTiledDisplayProcess** Processes;
  

private:
  vtkTiledDisplaySchedule(const vtkTiledDisplaySchedule&); // Not implemented
  void operator=(const vtkTiledDisplaySchedule&); // Not implemented
};

#endif

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