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https://gitlab.kitware.com/vtk/vtk-m
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dfadaabfb7
By using decltype we can allow for more flexible types and remove the nasty '::template ' syntax.
112 lines
3.4 KiB
C++
112 lines
3.4 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_arg_TransportTagTopologyFieldIn_h
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#define vtk_m_cont_arg_TransportTagTopologyFieldIn_h
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#include <vtkm/TopologyElementTag.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/CellSet.h>
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#include <vtkm/cont/arg/Transport.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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namespace arg
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{
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/// \brief \c Transport tag for input arrays in topology maps.
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///
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/// \c TransportTagTopologyFieldIn is a tag used with the \c Transport class to
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/// transport \c ArrayHandle objects for input data. The transport is templated
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/// on a topology element tag and expects a cell set input domain to check the
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/// size of the input array.
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///
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template <typename TopologyElementTag>
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struct TransportTagTopologyFieldIn
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{
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};
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namespace detail
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{
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VTKM_CONT
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inline static vtkm::Id TopologyDomainSize(const vtkm::cont::CellSet& cellSet,
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vtkm::TopologyElementTagPoint)
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{
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return cellSet.GetNumberOfPoints();
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}
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VTKM_CONT
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inline static vtkm::Id TopologyDomainSize(const vtkm::cont::CellSet& cellSet,
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vtkm::TopologyElementTagCell)
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{
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return cellSet.GetNumberOfCells();
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}
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VTKM_CONT
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inline static vtkm::Id TopologyDomainSize(const vtkm::cont::CellSet& cellSet,
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vtkm::TopologyElementTagFace)
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{
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return cellSet.GetNumberOfFaces();
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}
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VTKM_CONT
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inline static vtkm::Id TopologyDomainSize(const vtkm::cont::CellSet& cellSet,
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vtkm::TopologyElementTagEdge)
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{
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return cellSet.GetNumberOfEdges();
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}
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} // namespace detail
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template <typename TopologyElementTag, typename ContObjectType, typename Device>
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struct Transport<vtkm::cont::arg::TransportTagTopologyFieldIn<TopologyElementTag>,
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ContObjectType,
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Device>
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{
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VTKM_IS_ARRAY_HANDLE(ContObjectType);
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using ExecObjectType = decltype(std::declval<ContObjectType>().PrepareForInput(Device()));
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VTKM_CONT
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ExecObjectType operator()(const ContObjectType& object,
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const vtkm::cont::CellSet& inputDomain,
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vtkm::Id,
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vtkm::Id) const
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{
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if (object.GetNumberOfValues() != detail::TopologyDomainSize(inputDomain, TopologyElementTag()))
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{
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throw vtkm::cont::ErrorBadValue("Input array to worklet invocation the wrong size.");
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}
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return object.PrepareForInput(Device());
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}
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};
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}
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}
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} // namespace vtkm::cont::arg
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#endif //vtk_m_cont_arg_TransportTagTopologyFieldIn_h
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