5dd346007b
clang-format BinPack settings have been disabled to make sure that the VTK-m style guideline is obeyed.
557 lines
21 KiB
C++
557 lines
21 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 Sandia Corporation.
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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-AC04-94AL85000 with Sandia Corporation,
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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 vtk_m_cont_CellSetExplicit_h
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#define vtk_m_cont_CellSetExplicit_h
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#include <vtkm/CellShape.h>
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#include <vtkm/TopologyElementTag.h>
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#include <vtkm/cont/CellSet.h>
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#include <vtkm/cont/internal/ConnectivityExplicitInternals.h>
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#include <vtkm/exec/ConnectivityExplicit.h>
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#include <vtkm/cont/ArrayHandleConstant.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/exec/ExecutionWholeArray.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <map>
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#include <utility>
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namespace vtkm
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{
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namespace cont
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{
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namespace detail
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{
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template <typename CellSetType, typename FromTopology, typename ToTopology>
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struct CellSetExplicitConnectivityChooser
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{
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typedef vtkm::cont::internal::ConnectivityExplicitInternals<> ConnectivityType;
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};
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} // namespace detail
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#ifndef VTKM_DEFAULT_SHAPE_STORAGE_TAG
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#define VTKM_DEFAULT_SHAPE_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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#ifndef VTKM_DEFAULT_NUM_INDICES_STORAGE_TAG
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#define VTKM_DEFAULT_NUM_INDICES_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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#ifndef VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG
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#define VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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#ifndef VTKM_DEFAULT_OFFSETS_STORAGE_TAG
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#define VTKM_DEFAULT_OFFSETS_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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template <typename ShapeStorageTag = VTKM_DEFAULT_SHAPE_STORAGE_TAG,
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typename NumIndicesStorageTag = VTKM_DEFAULT_NUM_INDICES_STORAGE_TAG,
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typename ConnectivityStorageTag = VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG,
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typename OffsetsStorageTag = VTKM_DEFAULT_OFFSETS_STORAGE_TAG>
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class VTKM_ALWAYS_EXPORT CellSetExplicit : public CellSet
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{
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typedef CellSetExplicit<ShapeStorageTag,
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NumIndicesStorageTag,
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ConnectivityStorageTag,
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OffsetsStorageTag>
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Thisclass;
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template <typename FromTopology, typename ToTopology>
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struct ConnectivityChooser
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{
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typedef
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typename detail::CellSetExplicitConnectivityChooser<Thisclass, FromTopology, ToTopology>::
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ConnectivityType ConnectivityType;
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typedef typename ConnectivityType::ShapeArrayType ShapeArrayType;
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typedef typename ConnectivityType::NumIndicesArrayType NumIndicesArrayType;
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typedef typename ConnectivityType::ConnectivityArrayType ConnectivityArrayType;
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typedef typename ConnectivityType::IndexOffsetArrayType IndexOffsetArrayType;
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};
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public:
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typedef vtkm::Id SchedulingRangeType;
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//point to cell is used when iterating cells and asking for point properties
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typedef ConnectivityChooser<vtkm::TopologyElementTagPoint, vtkm::TopologyElementTagCell>
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PointToCellConnectivityType;
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typedef typename PointToCellConnectivityType::ShapeArrayType ShapeArrayType;
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typedef typename PointToCellConnectivityType::NumIndicesArrayType NumIndicesArrayType;
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typedef typename PointToCellConnectivityType::ConnectivityArrayType ConnectivityArrayType;
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typedef typename PointToCellConnectivityType::IndexOffsetArrayType IndexOffsetArrayType;
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VTKM_CONT
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CellSetExplicit(const std::string& name = std::string())
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: CellSet(name)
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, ConnectivityAdded(-1)
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, NumberOfCellsAdded(-1)
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, NumberOfPoints(0)
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{
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}
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VTKM_CONT
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CellSetExplicit(const Thisclass& src)
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: CellSet(src)
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, PointToCell(src.PointToCell)
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, CellToPoint(src.CellToPoint)
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, ConnectivityAdded(src.ConnectivityAdded)
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, NumberOfCellsAdded(src.NumberOfCellsAdded)
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, NumberOfPoints(src.NumberOfPoints)
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{
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}
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VTKM_CONT
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Thisclass& operator=(const Thisclass& src)
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{
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this->CellSet::operator=(src);
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this->PointToCell = src.PointToCell;
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this->CellToPoint = src.CellToPoint;
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this->ConnectivityAdded = src.ConnectivityAdded;
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this->NumberOfCellsAdded = src.NumberOfCellsAdded;
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this->NumberOfPoints = src.NumberOfPoints;
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return *this;
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}
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virtual ~CellSetExplicit() {}
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vtkm::Id GetNumberOfCells() const VTKM_OVERRIDE
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{
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return this->PointToCell.GetNumberOfElements();
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}
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vtkm::Id GetNumberOfPoints() const VTKM_OVERRIDE { return this->NumberOfPoints; }
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vtkm::Id GetNumberOfFaces() const VTKM_OVERRIDE { return -1; }
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vtkm::Id GetNumberOfEdges() const VTKM_OVERRIDE { return -1; }
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VTKM_CONT
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vtkm::Id GetSchedulingRange(vtkm::TopologyElementTagCell) const
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{
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return this->GetNumberOfCells();
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}
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VTKM_CONT
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vtkm::Id GetSchedulingRange(vtkm::TopologyElementTagPoint) const
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{
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return this->GetNumberOfPoints();
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}
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VTKM_CONT
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vtkm::IdComponent GetNumberOfPointsInCell(vtkm::Id cellIndex) const
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{
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return this->PointToCell.NumIndices.GetPortalConstControl().Get(cellIndex);
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}
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VTKM_CONT
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vtkm::UInt8 GetCellShape(vtkm::Id cellIndex) const
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{
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return this->PointToCell.Shapes.GetPortalConstControl().Get(cellIndex);
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}
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template <vtkm::IdComponent ItemTupleLength>
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VTKM_CONT void GetIndices(vtkm::Id index, vtkm::Vec<vtkm::Id, ItemTupleLength>& ids) const
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{
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this->PointToCell.BuildIndexOffsets(VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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vtkm::IdComponent numIndices = this->GetNumberOfPointsInCell(index);
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vtkm::Id start = this->PointToCell.IndexOffsets.GetPortalConstControl().Get(index);
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for (vtkm::IdComponent i = 0; i < numIndices && i < ItemTupleLength; i++)
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ids[i] = this->PointToCell.Connectivity.GetPortalConstControl().Get(start + i);
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}
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/// First method to add cells -- one at a time.
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VTKM_CONT
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void PrepareToAddCells(vtkm::Id numCells, vtkm::Id connectivityMaxLen)
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{
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this->PointToCell.Shapes.Allocate(numCells);
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this->PointToCell.NumIndices.Allocate(numCells);
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this->PointToCell.Connectivity.Allocate(connectivityMaxLen);
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this->PointToCell.IndexOffsets.Allocate(numCells);
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this->NumberOfCellsAdded = 0;
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this->ConnectivityAdded = 0;
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}
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template <typename IdVecType>
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VTKM_CONT void AddCell(vtkm::UInt8 cellType, vtkm::IdComponent numVertices, const IdVecType& ids)
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{
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using Traits = vtkm::VecTraits<IdVecType>;
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VTKM_STATIC_ASSERT_MSG((std::is_same<typename Traits::ComponentType, vtkm::Id>::value),
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"CellSetSingleType::AddCell requires vtkm::Id for indices.");
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if (Traits::GetNumberOfComponents(ids) < numVertices)
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{
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throw vtkm::cont::ErrorBadValue("Not enough indices given to CellSetSingleType::AddCell.");
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}
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if (this->NumberOfCellsAdded >= this->PointToCell.Shapes.GetNumberOfValues())
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{
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throw vtkm::cont::ErrorBadValue("Added more cells then expected.");
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}
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if (this->ConnectivityAdded + numVertices > this->PointToCell.Connectivity.GetNumberOfValues())
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{
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throw vtkm::cont::ErrorBadValue(
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"Connectivity increased passed estimated maximum connectivity.");
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}
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this->PointToCell.Shapes.GetPortalControl().Set(this->NumberOfCellsAdded, cellType);
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this->PointToCell.NumIndices.GetPortalControl().Set(this->NumberOfCellsAdded, numVertices);
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for (vtkm::IdComponent iVec = 0; iVec < numVertices; ++iVec)
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{
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this->PointToCell.Connectivity.GetPortalControl().Set(this->ConnectivityAdded + iVec,
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Traits::GetComponent(ids, iVec));
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}
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this->PointToCell.IndexOffsets.GetPortalControl().Set(this->NumberOfCellsAdded,
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this->ConnectivityAdded);
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this->NumberOfCellsAdded++;
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this->ConnectivityAdded += numVertices;
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}
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VTKM_CONT
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void CompleteAddingCells(vtkm::Id numPoints)
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{
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this->NumberOfPoints = numPoints;
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this->PointToCell.Connectivity.Shrink(ConnectivityAdded);
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this->PointToCell.ElementsValid = true;
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this->PointToCell.IndexOffsetsValid = true;
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if (this->NumberOfCellsAdded != this->GetNumberOfCells())
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{
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throw vtkm::cont::ErrorBadValue("Did not add as many cells as expected.");
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}
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this->NumberOfCellsAdded = -1;
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this->ConnectivityAdded = -1;
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}
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/// Second method to add cells -- all at once.
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/// Assigns the array handles to the explicit connectivity. This is
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/// the way you can fill the memory from another system without copying
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VTKM_CONT
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void Fill(vtkm::Id numPoints,
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const vtkm::cont::ArrayHandle<vtkm::UInt8, ShapeStorageTag>& cellTypes,
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const vtkm::cont::ArrayHandle<vtkm::IdComponent, NumIndicesStorageTag>& numIndices,
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const vtkm::cont::ArrayHandle<vtkm::Id, ConnectivityStorageTag>& connectivity,
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const vtkm::cont::ArrayHandle<vtkm::Id, OffsetsStorageTag>& offsets =
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vtkm::cont::ArrayHandle<vtkm::Id, OffsetsStorageTag>())
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{
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this->NumberOfPoints = numPoints;
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this->PointToCell.Shapes = cellTypes;
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this->PointToCell.NumIndices = numIndices;
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this->PointToCell.Connectivity = connectivity;
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this->PointToCell.ElementsValid = true;
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if (offsets.GetNumberOfValues() == cellTypes.GetNumberOfValues())
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{
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this->PointToCell.IndexOffsets = offsets;
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this->PointToCell.IndexOffsetsValid = true;
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}
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else
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{
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this->PointToCell.IndexOffsetsValid = false;
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if (offsets.GetNumberOfValues() != 0)
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{
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throw vtkm::cont::ErrorBadValue("Explicit cell offsets array unexpected size. "
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"Use an empty array to automatically generate.");
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}
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}
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}
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template <typename DeviceAdapter, typename FromTopology, typename ToTopology>
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struct ExecutionTypes
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{
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VTKM_IS_DEVICE_ADAPTER_TAG(DeviceAdapter);
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VTKM_IS_TOPOLOGY_ELEMENT_TAG(FromTopology);
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VTKM_IS_TOPOLOGY_ELEMENT_TAG(ToTopology);
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typedef ConnectivityChooser<FromTopology, ToTopology> ConnectivityTypes;
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typedef typename ConnectivityTypes::ShapeArrayType::template ExecutionTypes<
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DeviceAdapter>::PortalConst ShapePortalType;
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typedef typename ConnectivityTypes::NumIndicesArrayType::template ExecutionTypes<
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DeviceAdapter>::PortalConst IndicePortalType;
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typedef typename ConnectivityTypes::ConnectivityArrayType::template ExecutionTypes<
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DeviceAdapter>::PortalConst ConnectivityPortalType;
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typedef typename ConnectivityTypes::IndexOffsetArrayType::template ExecutionTypes<
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DeviceAdapter>::PortalConst IndexOffsetPortalType;
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typedef vtkm::exec::ConnectivityExplicit<ShapePortalType,
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IndicePortalType,
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ConnectivityPortalType,
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IndexOffsetPortalType>
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ExecObjectType;
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};
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template <typename Device, typename FromTopology, typename ToTopology>
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typename ExecutionTypes<Device, FromTopology, ToTopology>::ExecObjectType
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PrepareForInput(Device, FromTopology, ToTopology) const
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{
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this->BuildConnectivity(Device(), FromTopology(), ToTopology());
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const typename ConnectivityChooser<FromTopology, ToTopology>::ConnectivityType& connectivity =
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this->GetConnectivity(FromTopology(), ToTopology());
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VTKM_ASSERT(connectivity.ElementsValid);
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typedef typename ExecutionTypes<Device, FromTopology, ToTopology>::ExecObjectType ExecObjType;
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return ExecObjType(connectivity.Shapes.PrepareForInput(Device()),
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connectivity.NumIndices.PrepareForInput(Device()),
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connectivity.Connectivity.PrepareForInput(Device()),
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connectivity.IndexOffsets.PrepareForInput(Device()));
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}
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template <typename Device, typename FromTopology, typename ToTopology>
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VTKM_CONT void BuildConnectivity(Device, FromTopology, ToTopology) const
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{
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typedef CellSetExplicit<ShapeStorageTag,
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NumIndicesStorageTag,
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ConnectivityStorageTag,
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OffsetsStorageTag>
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CSE;
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CSE* self = const_cast<CSE*>(this);
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self->CreateConnectivity(Device(), FromTopology(), ToTopology());
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self->GetConnectivity(FromTopology(), ToTopology()).BuildIndexOffsets(Device());
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}
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template <typename Device>
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VTKM_CONT void CreateConnectivity(Device,
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vtkm::TopologyElementTagPoint,
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vtkm::TopologyElementTagCell)
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{
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// nothing to do
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}
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// Worklet to expand the PointToCell numIndices array by repeating cell index
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class ExpandIndices : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldIn<> cellIndex,
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FieldIn<> offset,
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FieldIn<> numIndices,
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WholeArrayOut<> cellIndices);
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typedef void ExecutionSignature(_1, _2, _3, _4);
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typedef _1 InputDomain;
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VTKM_CONT
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ExpandIndices() {}
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template <typename PortalType>
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VTKM_EXEC void operator()(const vtkm::Id& cellIndex,
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const vtkm::Id& offset,
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const vtkm::Id& numIndices,
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const PortalType& cellIndices) const
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{
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VTKM_ASSERT(cellIndices.GetNumberOfValues() >= offset + numIndices);
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vtkm::Id startIndex = offset;
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for (vtkm::Id i = 0; i < numIndices; i++)
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{
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cellIndices.Set(startIndex++, cellIndex);
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}
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}
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};
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template <typename Device>
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VTKM_CONT void CreateConnectivity(Device,
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vtkm::TopologyElementTagCell,
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vtkm::TopologyElementTagPoint)
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{
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// PointToCell connectivity array (point indices) will be
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// transformed into the CellToPoint numIndices array using reduction
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//
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// PointToCell numIndices array using expansion will be
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// transformed into the CellToPoint connectivity array
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if (this->CellToPoint.ElementsValid)
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{
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return;
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}
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typedef vtkm::cont::DeviceAdapterAlgorithm<Device> Algorithm;
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// Sizes of the PointToCell information
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vtkm::Id numberOfCells = this->GetNumberOfCells();
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vtkm::Id connectivityLength = this->PointToCell.Connectivity.GetNumberOfValues();
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// PointToCell connectivity will be basis of CellToPoint numIndices
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vtkm::cont::ArrayHandle<vtkm::Id> pointIndices;
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Algorithm::Copy(this->PointToCell.Connectivity, pointIndices);
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// PointToCell numIndices will be basis of CellToPoint connectivity
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this->CellToPoint.Connectivity.Allocate(connectivityLength);
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vtkm::cont::ArrayHandleCounting<vtkm::Id> index(0, 1, numberOfCells);
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this->PointToCell.BuildIndexOffsets(Device());
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vtkm::worklet::DispatcherMapField<ExpandIndices, Device> expandDispatcher;
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expandDispatcher.Invoke(index,
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this->PointToCell.IndexOffsets,
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this->PointToCell.NumIndices,
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this->CellToPoint.Connectivity);
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// SortByKey where key is PointToCell connectivity and value is the expanded cellIndex
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Algorithm::SortByKey(pointIndices, this->CellToPoint.Connectivity);
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if (this->GetNumberOfPoints() <= 0)
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{
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this->NumberOfPoints = pointIndices.GetPortalControl().Get(connectivityLength - 1) + 1;
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}
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vtkm::Id numberOfPoints = this->GetNumberOfPoints();
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// CellToPoint numIndices from the now sorted PointToCell connectivity
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vtkm::cont::ArrayHandleConstant<vtkm::Id> numArray(1, connectivityLength);
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vtkm::cont::ArrayHandle<vtkm::Id> uniquePoints;
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vtkm::cont::ArrayHandle<vtkm::Id> numIndices;
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uniquePoints.Allocate(numberOfPoints);
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numIndices.Allocate(numberOfPoints);
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Algorithm::ReduceByKey(pointIndices, numArray, uniquePoints, numIndices, vtkm::Add());
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// Set the CellToPoint information
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this->CellToPoint.Shapes = vtkm::cont::make_ArrayHandleConstant(
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static_cast<vtkm::UInt8>(CELL_SHAPE_VERTEX), numberOfPoints);
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Algorithm::Copy(numIndices, this->CellToPoint.NumIndices);
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this->CellToPoint.ElementsValid = true;
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this->CellToPoint.IndexOffsetsValid = false;
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}
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void PrintSummary(std::ostream& out) const VTKM_OVERRIDE
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{
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out << " ExplicitCellSet: " << this->Name << std::endl;
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out << " PointToCell: " << std::endl;
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this->PointToCell.PrintSummary(out);
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out << " CellToPoint: " << std::endl;
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this->CellToPoint.PrintSummary(out);
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}
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template <typename FromTopology, typename ToTopology>
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VTKM_CONT const typename ConnectivityChooser<FromTopology, ToTopology>::ShapeArrayType&
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GetShapesArray(FromTopology, ToTopology) const
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{
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return this->GetConnectivity(FromTopology(), ToTopology()).Shapes;
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}
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template <typename FromTopology, typename ToTopology>
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VTKM_CONT const typename ConnectivityChooser<FromTopology, ToTopology>::NumIndicesArrayType&
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GetNumIndicesArray(FromTopology, ToTopology) const
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{
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return this->GetConnectivity(FromTopology(), ToTopology()).NumIndices;
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}
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template <typename FromTopology, typename ToTopology>
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VTKM_CONT const typename ConnectivityChooser<FromTopology, ToTopology>::ConnectivityArrayType&
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GetConnectivityArray(FromTopology, ToTopology) const
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{
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return this->GetConnectivity(FromTopology(), ToTopology()).Connectivity;
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}
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template <typename FromTopology, typename ToTopology>
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VTKM_CONT const typename ConnectivityChooser<FromTopology, ToTopology>::IndexOffsetArrayType&
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GetIndexOffsetArray(FromTopology, ToTopology) const
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{
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return this->GetConnectivity(FromTopology(), ToTopology()).IndexOffsets;
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}
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protected:
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typename ConnectivityChooser<vtkm::TopologyElementTagPoint,
|
|
vtkm::TopologyElementTagCell>::ConnectivityType PointToCell;
|
|
|
|
// TODO: Actually implement CellToPoint and other connectivity. (That is,
|
|
// derive the connectivity from PointToCell.
|
|
typename ConnectivityChooser<vtkm::TopologyElementTagCell,
|
|
vtkm::TopologyElementTagPoint>::ConnectivityType CellToPoint;
|
|
|
|
private:
|
|
// A set of overloaded methods to get the connectivity from a pair of
|
|
// topology element types.
|
|
#define VTKM_GET_CONNECTIVITY_METHOD(FromTopology, ToTopology, Ivar) \
|
|
VTKM_CONT \
|
|
const typename ConnectivityChooser<FromTopology, ToTopology>::ConnectivityType& GetConnectivity( \
|
|
FromTopology, ToTopology) const \
|
|
{ \
|
|
return this->Ivar; \
|
|
} \
|
|
VTKM_CONT \
|
|
typename ConnectivityChooser<FromTopology, ToTopology>::ConnectivityType& GetConnectivity( \
|
|
FromTopology, ToTopology) \
|
|
{ \
|
|
return this->Ivar; \
|
|
}
|
|
|
|
VTKM_GET_CONNECTIVITY_METHOD(vtkm::TopologyElementTagPoint,
|
|
vtkm::TopologyElementTagCell,
|
|
PointToCell)
|
|
VTKM_GET_CONNECTIVITY_METHOD(vtkm::TopologyElementTagCell,
|
|
vtkm::TopologyElementTagPoint,
|
|
CellToPoint)
|
|
|
|
#undef VTKM_GET_CONNECTIVITY_METHOD
|
|
|
|
protected:
|
|
// These are used in the AddCell and related methods to incrementally add
|
|
// cells. They need to be protected as subclasses of CellSetExplicit
|
|
// need to set these values when implementing Fill()
|
|
vtkm::Id ConnectivityAdded;
|
|
vtkm::Id NumberOfCellsAdded;
|
|
vtkm::Id NumberOfPoints;
|
|
};
|
|
|
|
namespace detail
|
|
{
|
|
|
|
template <typename Storage1, typename Storage2, typename Storage3, typename Storage4>
|
|
struct CellSetExplicitConnectivityChooser<
|
|
vtkm::cont::CellSetExplicit<Storage1, Storage2, Storage3, Storage4>,
|
|
vtkm::TopologyElementTagPoint,
|
|
vtkm::TopologyElementTagCell>
|
|
{
|
|
typedef vtkm::cont::internal::
|
|
ConnectivityExplicitInternals<Storage1, Storage2, Storage3, Storage4>
|
|
ConnectivityType;
|
|
};
|
|
|
|
template <typename CellSetType>
|
|
struct CellSetExplicitConnectivityChooser<CellSetType,
|
|
vtkm::TopologyElementTagCell,
|
|
vtkm::TopologyElementTagPoint>
|
|
{
|
|
//only specify the shape type as it will be constant as everything
|
|
//is a vertex. otherwise use the defaults.
|
|
typedef vtkm::cont::internal::ConnectivityExplicitInternals<
|
|
typename ArrayHandleConstant<vtkm::UInt8>::StorageTag>
|
|
ConnectivityType;
|
|
};
|
|
|
|
} // namespace detail
|
|
}
|
|
} // namespace vtkm::cont
|
|
|
|
#endif //vtk_m_cont_CellSetExplicit_h
|