fdaccc22db
Change the VTKM_CONT_EXPORT to VTKM_CONT. (Likewise for EXEC and EXEC_CONT.) Remove the inline from these macros so that they can be applied to everything, including implementations in a library. Because inline is not declared in these modifies, you have to add the keyword to functions and methods where the implementation is not inlined in the class.
154 lines
4.9 KiB
C++
154 lines
4.9 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_worklet_TetrahedralizeUniformGrid_h
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#define vtk_m_worklet_TetrahedralizeUniformGrid_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleGroupVec.h>
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#include <vtkm/cont/CellSetSingleType.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/DeviceAdapter.h>
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#include <vtkm/cont/DynamicArrayHandle.h>
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#include <vtkm/cont/ErrorControlBadValue.h>
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#include <vtkm/cont/Field.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/ScatterUniform.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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namespace vtkm {
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namespace worklet {
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namespace detail {
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VTKM_EXEC_CONSTANT
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const static vtkm::IdComponent StructuredTetrahedronIndices[2][5][4] = {
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{
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{ 0, 1, 3, 4 },
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{ 1, 4, 5, 6 },
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{ 1, 4, 6, 3 },
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{ 1, 3, 6, 2 },
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{ 3, 6, 7, 4 }
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},
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{
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{ 2, 1, 5, 0 },
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{ 0, 2, 3, 7 },
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{ 2, 5, 6, 7 },
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{ 0, 7, 4, 5 },
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{ 0, 2, 7, 5 }
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}
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};
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} // namespace detail
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/// \brief Compute the tetrahedralize cells for a uniform grid data set
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template <typename DeviceAdapter>
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class TetrahedralizeFilterUniformGrid
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{
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public:
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//
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// Worklet to turn hexahedra into tetrahedra
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// Vertices remain the same and each cell is processed with needing topology
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//
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class TetrahedralizeCell : public vtkm::worklet::WorkletMapPointToCell
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{
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public:
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typedef void ControlSignature(CellSetIn cellset,
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FieldOutCell<> connectivityOut);
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typedef void ExecutionSignature(PointIndices, _2, ThreadIndices);
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typedef _1 InputDomain;
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typedef vtkm::worklet::ScatterUniform ScatterType;
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VTKM_CONT
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ScatterType GetScatter() const
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{
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return ScatterType(5);
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}
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VTKM_CONT
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TetrahedralizeCell()
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{ }
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// Each hexahedron cell produces five tetrahedron cells
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template<typename ConnectivityInVec,
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typename ConnectivityOutVec,
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typename ThreadIndicesType>
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VTKM_EXEC
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void operator()(const ConnectivityInVec &connectivityIn,
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ConnectivityOutVec &connectivityOut,
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const ThreadIndicesType threadIndices) const
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{
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vtkm::Id3 inputIndex = threadIndices.GetInputIndex3D();
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// Calculate the type of tetrahedron generated because it alternates
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vtkm::Id indexType = (inputIndex[0] + inputIndex[1] + inputIndex[2]) % 2;
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vtkm::IdComponent visitIndex = threadIndices.GetVisitIndex();
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connectivityOut[0] = connectivityIn[detail::StructuredTetrahedronIndices[indexType][visitIndex][0]];
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connectivityOut[1] = connectivityIn[detail::StructuredTetrahedronIndices[indexType][visitIndex][1]];
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connectivityOut[2] = connectivityIn[detail::StructuredTetrahedronIndices[indexType][visitIndex][2]];
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connectivityOut[3] = connectivityIn[detail::StructuredTetrahedronIndices[indexType][visitIndex][3]];
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}
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};
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//
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// Construct the filter to tetrahedralize uniform grid
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//
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TetrahedralizeFilterUniformGrid(const vtkm::cont::DataSet &inDataSet,
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vtkm::cont::DataSet &outDataSet) :
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InDataSet(inDataSet),
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OutDataSet(outDataSet)
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{
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}
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vtkm::cont::DataSet InDataSet; // input dataset with structured cell set
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vtkm::cont::DataSet OutDataSet; // output dataset with explicit cell set
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//
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// Populate the output dataset with tetrahedra based on input uniform dataset
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//
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void Run()
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{
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// Get the cell set from the output data set
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vtkm::cont::CellSetSingleType<> &cellSet =
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this->OutDataSet.GetCellSet(0).template Cast<vtkm::cont::CellSetSingleType<> >();
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vtkm::cont::ArrayHandle<vtkm::Id> connectivity;
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vtkm::cont::CellSetStructured<3> inCellSet;
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InDataSet.GetCellSet(0).CopyTo(inCellSet);
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vtkm::worklet::DispatcherMapTopology<TetrahedralizeCell,DeviceAdapter> dispatcher;
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dispatcher.Invoke(inCellSet,
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vtkm::cont::make_ArrayHandleGroupVec<4>(connectivity));
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// Add cells to output cellset
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cellSet.Fill(connectivity);
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}
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};
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}
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} // namespace vtkm::worklet
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#endif // vtk_m_worklet_TetrahedralizeUniformGrid_h
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