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/*=========================================================================
Program: Visualization Toolkit
Module: vtkAMRDataSetCache.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.
=========================================================================*/
// .NAME vtkAMRDataSetCache.h -- A cache for AMR blocks and block data
//
// .SECTION Description
// A concrete implementation of vtkObject that provides functionality for
// caching AMR blocks. The primary intent of this class is to be used by the
// AMR reader infrastructure for caching blocks/data in memory to minimize
// out-of-core operations.
#ifndef VTKAMRDATASETCACHE_H_
#define VTKAMRDATASETCACHE_H_
#include "vtkIOAMRModule.h" // For export macro
#include "vtkObject.h"
#include <map> // For STL map used as the data-structure for the cache.
class vtkUniformGrid;
class vtkDataArray;
class VTKIOAMR_EXPORT vtkAMRDataSetCache : public vtkObject
{
public:
static vtkAMRDataSetCache* New();
vtkTypeMacro( vtkAMRDataSetCache, vtkObject );
void PrintSelf(ostream &os, vtkIndent indent );
// Description:
// Inserts an AMR block to the cache
void InsertAMRBlock(int compositeIdx,vtkUniformGrid *amrGrid);
// Description:
// Inserts a point data array to an already cached block
// NOTE: this->HasAMRBlock( compositeIdx ) == true
void InsertAMRBlockPointData(
int compositeIdx, vtkDataArray *dataArray );
// Description:
// Inserts a cell data array to an already cached block
// NOTE: this->HasAMRBlock( compositeIdx ) == true
void InsertAMRBlockCellData(
int compositeIdx, vtkDataArray *dataArray );
// Description:
// Given the name of the cell array and AMR block composite index, this
// method returns a pointer to the cell data array.
// NOTE: Null is returned if the cell array and/or block is not cached.
vtkDataArray* GetAMRBlockCellData(
int compositeIdx, const char *dataName );
// Description:
// Given the name of the point array and AMR block composite index, this
// method returns a pointer to the point data array.
// NOTE: Null is returend if the point array and /or block is not cached.
vtkDataArray* GetAMRBlockPointData(
int compositeIdx, const char *dataName );
// Description:
// Given the composite index, this method returns the AMR block.
// NOTE: Null is returned if the AMR block does not exist in the cache.
vtkUniformGrid* GetAMRBlock(int compositeIdx );
// Description:
// Checks if the cell data array, associated with the provided name, has
// been cached for the AMR block with the given composite index.
bool HasAMRBlockCellData(int compositeIdx, const char *name);
// Description:
// Checks if the point data array, associated with the provided name, has
// been cached for the AMR block with the given composite index.
bool HasAMRBlockPointData(int compositeIdx, const char *name);
// Description:
// Checks if the AMR block associated with the given composite is cached.
bool HasAMRBlock( const int compositeIdx );
protected:
vtkAMRDataSetCache();
virtual ~vtkAMRDataSetCache();
//BTX
typedef std::map< int, vtkUniformGrid* > AMRCacheType;
AMRCacheType Cache;
//ETX
private:
vtkAMRDataSetCache( const vtkAMRDataSetCache& ); // Not implemented
void operator=( const vtkAMRDataSetCache& ); // Not implemented
};
#endif /* VTKAMRDATASETCACHE_H_ */
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