CellLocatorGeneral.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_CellLocatorGeneral_h
#define vtk_m_cont_CellLocatorGeneral_h
 
#include <vtkm/cont/CellLocatorRectilinearGrid.h>
#include <vtkm/cont/CellLocatorTwoLevel.h>
#include <vtkm/cont/CellLocatorUniformGrid.h>
 
#include <vtkm/exec/CellLocatorMultiplexer.h>
 
#include <vtkm/cont/Variant.h>
 
#include <functional>
#include <memory>
 
namespace vtkm
{
namespace cont
{
 
class VTKM_CONT_EXPORT CellLocatorGeneral : public vtkm::cont::CellLocatorBase
{
public:
  using ContLocatorList = vtkm::List<vtkm::cont::CellLocatorUniformGrid,
                                     vtkm::cont::CellLocatorRectilinearGrid,
                                     vtkm::cont::CellLocatorTwoLevel>;
 
  using ExecLocatorList =
    vtkm::List<vtkm::cont::internal::ExecutionObjectType<vtkm::cont::CellLocatorUniformGrid>,
               vtkm::cont::internal::ExecutionObjectType<vtkm::cont::CellLocatorRectilinearGrid>,
               vtkm::cont::internal::ExecutionObjectType<vtkm::cont::CellLocatorTwoLevel>>;
 
  using ExecObjType = vtkm::ListApply<ExecLocatorList, vtkm::exec::CellLocatorMultiplexer>;
  using LastCell = typename ExecObjType::LastCell;
 
  VTKM_CONT ExecObjType PrepareForExecution(vtkm::cont::DeviceAdapterId device,
                                            vtkm::cont::Token& token) const;
 
private:
  vtkm::cont::ListAsVariant<ContLocatorList> LocatorImpl;
 
  VTKM_CONT void Build() override;
 
  struct PrepareFunctor;
};
}
} // vtkm::cont
 
#endif // vtk_m_cont_CellLocatorGeneral_h