cont/CellLocatorTwoLevel.h

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//============================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//============================================================================
#ifndef vtk_m_cont_CellLocatorTwoLevel_h
#define vtk_m_cont_CellLocatorTwoLevel_h
 
#include <vtkm/cont/ArrayHandle.h>
#include <vtkm/cont/CellSetList.h>
 
#include <vtkm/cont/CellLocatorBase.h>
 
#include <vtkm/exec/CellLocatorMultiplexer.h>
#include <vtkm/exec/CellLocatorTwoLevel.h>
 
 
namespace vtkm
{
namespace cont
{
 
class VTKM_CONT_EXPORT CellLocatorTwoLevel : public vtkm::cont::CellLocatorBase
{
  template <typename CellSetCont>
  using CellSetContToExec =
    typename CellSetCont::template ExecConnectivityType<vtkm::TopologyElementTagCell,
                                                        vtkm::TopologyElementTagPoint>;
 
public:
  using SupportedCellSets = VTKM_DEFAULT_CELL_SET_LIST;
 
  using CellExecObjectList = vtkm::ListTransform<SupportedCellSets, CellSetContToExec>;
  using CellLocatorExecList =
    vtkm::ListTransform<CellExecObjectList, vtkm::exec::CellLocatorTwoLevel>;
 
  using ExecObjType = vtkm::ListApply<CellLocatorExecList, vtkm::exec::CellLocatorMultiplexer>;
  using LastCell = typename ExecObjType::LastCell;
 
  CellLocatorTwoLevel()
    : DensityL1(32.0f)
    , DensityL2(2.0f)
  {
  }
 
  void SetDensityL1(vtkm::FloatDefault val)
  {
    this->DensityL1 = val;
    this->SetModified();
  }
  vtkm::FloatDefault GetDensityL1() const { return this->DensityL1; }
 
  void SetDensityL2(vtkm::FloatDefault val)
  {
    this->DensityL2 = val;
    this->SetModified();
  }
  vtkm::FloatDefault GetDensityL2() const { return this->DensityL2; }
 
  void PrintSummary(std::ostream& out) const;
 
  ExecObjType PrepareForExecution(vtkm::cont::DeviceAdapterId device,
                                  vtkm::cont::Token& token) const;
 
private:
  VTKM_CONT void Build() override;
 
  vtkm::FloatDefault DensityL1, DensityL2;
 
  vtkm::internal::cl_uniform_bins::Grid TopLevel;
  vtkm::cont::ArrayHandle<vtkm::internal::cl_uniform_bins::DimVec3> LeafDimensions;
  vtkm::cont::ArrayHandle<vtkm::Id> LeafStartIndex;
  vtkm::cont::ArrayHandle<vtkm::Id> CellStartIndex;
  vtkm::cont::ArrayHandle<vtkm::Id> CellCount;
  vtkm::cont::ArrayHandle<vtkm::Id> CellIds;
 
  struct MakeExecObject;
};
 
}
} // vtkm::cont
 
#endif // vtk_m_cont_CellLocatorTwoLevel_h