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.
137 lines
4.6 KiB
C++
137 lines
4.6 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 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 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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#include <vtkm/worklet/CellDeepCopy.h>
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#include <vtkm/worklet/RemoveUnusedPoints.h>
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#include <vector>
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namespace vtkm
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{
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namespace filter
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{
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inline VTKM_CONT CleanGrid::CleanGrid()
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: CompactPointFields(true)
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{
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}
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template <typename Policy>
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inline VTKM_CONT vtkm::cont::DataSet CleanGrid::DoExecute(const vtkm::cont::DataSet& inData,
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vtkm::filter::PolicyBase<Policy> policy)
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{
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using CellSetType = vtkm::cont::CellSetExplicit<>;
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using VecId = std::vector<CellSetType>::size_type;
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VecId numCellSets = static_cast<VecId>(inData.GetNumberOfCellSets());
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std::vector<CellSetType> outputCellSets(numCellSets);
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// Do a deep copy of the cells to new CellSetExplicit structures
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for (VecId cellSetIndex = 0; cellSetIndex < numCellSets; cellSetIndex++)
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{
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vtkm::cont::DynamicCellSet inCellSet =
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inData.GetCellSet(static_cast<vtkm::IdComponent>(cellSetIndex));
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vtkm::worklet::CellDeepCopy::Run(vtkm::filter::ApplyPolicy(inCellSet, policy),
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outputCellSets[cellSetIndex]);
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}
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// Optionally adjust the cell set indices to remove all unused points
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if (this->GetCompactPointFields())
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{
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this->PointCompactor.FindPointsStart();
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for (VecId cellSetIndex = 0; cellSetIndex < numCellSets; cellSetIndex++)
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{
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this->PointCompactor.FindPoints(outputCellSets[cellSetIndex]);
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}
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this->PointCompactor.FindPointsEnd();
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for (VecId cellSetIndex = 0; cellSetIndex < numCellSets; cellSetIndex++)
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{
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outputCellSets[cellSetIndex] = this->PointCompactor.MapCellSet(outputCellSets[cellSetIndex]);
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}
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}
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// Construct resulting data set with new cell sets
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vtkm::cont::DataSet outData;
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for (VecId cellSetIndex = 0; cellSetIndex < numCellSets; cellSetIndex++)
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{
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outData.AddCellSet(outputCellSets[cellSetIndex]);
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}
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// Pass the coordinate systems
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// TODO: This is very awkward. First of all, there is no support for dealing
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// with coordinate systems at all. That is fine if you are computing a new
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// coordinate system, but a pain if you are deriving the coordinate system
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// array. Second, why is it that coordinate systems are automatically mapped
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// but other fields are not? Why shouldn't the Execute of a filter also set
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// up all the fields of the output data set?
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for (vtkm::IdComponent coordSystemIndex = 0;
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coordSystemIndex < inData.GetNumberOfCoordinateSystems();
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coordSystemIndex++)
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{
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vtkm::cont::CoordinateSystem coordSystem = inData.GetCoordinateSystem(coordSystemIndex);
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if (this->GetCompactPointFields())
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{
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auto outArray = this->MapPointField(coordSystem.GetData());
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outData.AddCoordinateSystem(vtkm::cont::CoordinateSystem(coordSystem.GetName(), outArray));
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}
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else
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{
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outData.AddCoordinateSystem(coordSystem);
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}
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}
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return outData;
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}
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template <typename ValueType, typename Storage, typename Policy>
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inline VTKM_CONT bool CleanGrid::DoMapField(
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vtkm::cont::DataSet& result,
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const vtkm::cont::ArrayHandle<ValueType, Storage>& input,
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const vtkm::filter::FieldMetadata& fieldMeta,
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vtkm::filter::PolicyBase<Policy>)
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{
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if (this->GetCompactPointFields() && fieldMeta.IsPointField())
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{
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vtkm::cont::ArrayHandle<ValueType> compactedArray = this->MapPointField(input);
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result.AddField(fieldMeta.AsField(compactedArray));
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}
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else
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{
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result.AddField(fieldMeta.AsField(input));
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}
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return true;
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}
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template <typename ValueType, typename Storage>
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inline VTKM_CONT vtkm::cont::ArrayHandle<ValueType> CleanGrid::MapPointField(
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const vtkm::cont::ArrayHandle<ValueType, Storage>& inArray) const
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{
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VTKM_ASSERT(this->GetCompactPointFields());
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return this->PointCompactor.MapPointFieldDeep(inArray);
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}
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}
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}
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