134 lines
4.5 KiB
C++
134 lines
4.5 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 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 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 vtk_m_cont_BoundingIntervalHierarchy_h
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#define vtk_m_cont_BoundingIntervalHierarchy_h
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#include <vtkm/Types.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleTransform.h>
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#include <vtkm/cont/BoundingIntervalHierarchyNode.h>
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#include <vtkm/cont/CellLocator.h>
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#include <vtkm/worklet/spatialstructure/BoundingIntervalHierarchy.h>
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namespace vtkm
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{
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namespace cont
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{
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class BoundingIntervalHierarchy : public vtkm::cont::CellLocator
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{
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private:
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using IdArrayHandle = vtkm::cont::ArrayHandle<vtkm::Id>;
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using CoordsArrayHandle = vtkm::cont::ArrayHandle<vtkm::FloatDefault>;
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using RangeArrayHandle = vtkm::cont::ArrayHandle<vtkm::Range>;
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using RangePermutationArrayHandle =
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vtkm::cont::ArrayHandlePermutation<IdArrayHandle, RangeArrayHandle>;
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using SplitPropertiesArrayHandle =
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vtkm::cont::ArrayHandle<vtkm::worklet::spatialstructure::SplitProperties>;
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using HandleType = vtkm::cont::VirtualObjectHandle<vtkm::exec::CellLocator>;
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class BuildFunctor;
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class PrepareForExecutionFunctor;
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template <typename DeviceAdapter>
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VTKM_CONT IdArrayHandle CalculateSegmentSizes(const IdArrayHandle&, vtkm::Id);
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template <typename DeviceAdapter>
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VTKM_CONT IdArrayHandle GenerateSegmentIds(const IdArrayHandle&, vtkm::Id);
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template <typename DeviceAdapter>
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VTKM_CONT void CalculateSplitCosts(RangePermutationArrayHandle&,
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RangeArrayHandle&,
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CoordsArrayHandle&,
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IdArrayHandle&,
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SplitPropertiesArrayHandle&,
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DeviceAdapter);
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template <typename DeviceAdapter>
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VTKM_CONT void CalculatePlaneSplitCost(vtkm::IdComponent,
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vtkm::IdComponent,
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RangePermutationArrayHandle&,
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RangeArrayHandle&,
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CoordsArrayHandle&,
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IdArrayHandle&,
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SplitPropertiesArrayHandle&,
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vtkm::IdComponent,
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DeviceAdapter);
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template <typename DeviceAdapter>
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VTKM_CONT IdArrayHandle CalculateSplitScatterIndices(const IdArrayHandle&,
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const IdArrayHandle&,
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const IdArrayHandle&,
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DeviceAdapter);
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public:
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VTKM_CONT
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BoundingIntervalHierarchy(vtkm::IdComponent numPlanes = 4, vtkm::IdComponent maxLeafSize = 5)
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: NumPlanes(numPlanes)
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, MaxLeafSize(maxLeafSize)
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, Nodes()
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, ProcessedCellIds()
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{
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}
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VTKM_CONT
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void SetNumberOfSplittingPlanes(vtkm::IdComponent numPlanes)
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{
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NumPlanes = numPlanes;
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SetDirty();
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}
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VTKM_CONT
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vtkm::IdComponent GetNumberOfSplittingPlanes() { return NumPlanes; }
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VTKM_CONT
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void SetMaxLeafSize(vtkm::IdComponent maxLeafSize)
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{
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MaxLeafSize = maxLeafSize;
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SetDirty();
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}
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VTKM_CONT
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vtkm::Id GetMaxLeafSize() { return MaxLeafSize; }
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protected:
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VTKM_CONT
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void Build() override;
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VTKM_CONT
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virtual const HandleType PrepareForExecutionImpl(
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const vtkm::cont::DeviceAdapterId device) const override;
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private:
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vtkm::IdComponent NumPlanes;
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vtkm::IdComponent MaxLeafSize;
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vtkm::cont::ArrayHandle<BoundingIntervalHierarchyNode> Nodes;
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IdArrayHandle ProcessedCellIds;
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mutable HandleType ExecHandle;
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};
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} // namespace cont
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} // namespace vtkm
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#endif // vtk_m_cont_BoundingIntervalHierarchy_h
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