mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
bddad9b386
Now that the dispatcher does its own TryExecute, filters do not need to do that. This change requires all worklets called by filters to be able to execute without knowing the device a priori.
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtkm_m_worklet_Mask_h
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#define vtkm_m_worklet_Mask_h
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/CellSetPermutation.h>
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#include <vtkm/cont/DataSet.h>
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namespace vtkm
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{
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namespace worklet
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{
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// Subselect points using stride for now, creating new cellset of vertices
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class Mask
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{
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public:
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struct BoolType : vtkm::ListTagBase<bool>
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{
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};
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template <typename CellSetType>
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vtkm::cont::CellSetPermutation<CellSetType> Run(const CellSetType& cellSet, const vtkm::Id stride)
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{
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using OutputType = vtkm::cont::CellSetPermutation<CellSetType>;
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vtkm::Id numberOfInputCells = cellSet.GetNumberOfCells();
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vtkm::Id numberOfSampledCells = numberOfInputCells / stride;
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vtkm::cont::ArrayHandleCounting<vtkm::Id> strideArray(0, stride, numberOfSampledCells);
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vtkm::cont::ArrayCopy(strideArray, this->ValidCellIds);
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return OutputType(this->ValidCellIds, cellSet, cellSet.GetName());
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}
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//----------------------------------------------------------------------------
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template <typename ValueType, typename StorageType>
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vtkm::cont::ArrayHandle<ValueType> ProcessCellField(
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const vtkm::cont::ArrayHandle<ValueType, StorageType>& in) const
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{
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// Use a temporary permutation array to simplify the mapping:
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auto tmp = vtkm::cont::make_ArrayHandlePermutation(this->ValidCellIds, in);
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// Copy into an array with default storage:
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vtkm::cont::ArrayHandle<ValueType> result;
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vtkm::cont::ArrayCopy(tmp, result);
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return result;
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}
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private:
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vtkm::cont::ArrayHandle<vtkm::Id> ValidCellIds;
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};
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}
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} // namespace vtkm::worklet
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#endif // vtkm_m_worklet_Mask_h
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