MaskIndices.h

Go to the documentation of this file.

//============================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt 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 vtk_m_worklet_MaskIndices_h
#define vtk_m_worklet_MaskIndices_h
 
#include <vtkm/cont/Algorithm.h>
#include <vtkm/worklet/internal/MaskBase.h>
 
namespace vtkm
{
namespace worklet
{
 
class MaskIndices : public internal::MaskBase
{
public:
  using ThreadToOutputMapType = vtkm::cont::ArrayHandle<vtkm::Id>;
 
  explicit MaskIndices(
    const vtkm::cont::ArrayHandle<vtkm::Id>& indexArray,
    vtkm::cont::DeviceAdapterId vtkmNotUsed(device) = vtkm::cont::DeviceAdapterTagAny())
  {
    this->ThreadToOutputMap = indexArray;
  }
 
  template <typename T, typename S>
  explicit MaskIndices(const vtkm::cont::ArrayHandle<T, S>& indexArray,
                       vtkm::cont::DeviceAdapterId device = vtkm::cont::DeviceAdapterTagAny())
  {
    vtkm::cont::Algorithm::Copy(device, indexArray, this->ThreadToOutputMap);
  }
 
  // TODO? Create a version that accepts an UnknownArrayHandle. Is this needed?
 
  template <typename RangeType>
  vtkm::Id GetThreadRange(RangeType vtkmNotUsed(outputRange)) const
  {
    return this->ThreadToOutputMap.GetNumberOfValues();
  }
 
  template <typename RangeType>
  ThreadToOutputMapType GetThreadToOutputMap(RangeType vtkmNotUsed(outputRange)) const
  {
    return this->ThreadToOutputMap;
  }
 
private:
  ThreadToOutputMapType ThreadToOutputMap;
};
}
} // namespace vtkm::worklet
 
#endif //vtk_m_worklet_MaskIndices_h