TransportTagTopologyFieldIn.h

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//============================================================================
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//  LICENSE.txt for details.
//
//  By contributing to this file, all contributors agree to the Developer
//  Certificate of Origin Version 1.1 (DCO 1.1) as stated in DCO.txt.
//============================================================================
 
//============================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
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//  PURPOSE.  See the above copyright notice for more information.
//============================================================================
#ifndef viskores_cont_arg_TransportTagTopologyFieldIn_h
#define viskores_cont_arg_TransportTagTopologyFieldIn_h
 
#include <viskores/TopologyElementTag.h>
#include <viskores/Types.h>
 
#include <viskores/cont/ArrayHandle.h>
#include <viskores/cont/CellSet.h>
 
#include <viskores/cont/arg/Transport.h>
 
namespace viskores
{
namespace cont
{
namespace arg
{
 
template <typename TopologyElementTag>
struct TransportTagTopologyFieldIn
{
};
 
namespace detail
{
 
VISKORES_CONT
inline static viskores::Id TopologyDomainSize(const viskores::cont::CellSet& cellSet,
                                              viskores::TopologyElementTagPoint)
{
  return cellSet.GetNumberOfPoints();
}
 
VISKORES_CONT
inline static viskores::Id TopologyDomainSize(const viskores::cont::CellSet& cellSet,
                                              viskores::TopologyElementTagCell)
{
  return cellSet.GetNumberOfCells();
}
 
VISKORES_CONT
inline static viskores::Id TopologyDomainSize(const viskores::cont::CellSet& cellSet,
                                              viskores::TopologyElementTagFace)
{
  return cellSet.GetNumberOfFaces();
}
 
VISKORES_CONT
inline static viskores::Id TopologyDomainSize(const viskores::cont::CellSet& cellSet,
                                              viskores::TopologyElementTagEdge)
{
  return cellSet.GetNumberOfEdges();
}
 
} // namespace detail
 
template <typename TopologyElementTag, typename ContObjectType, typename Device>
struct Transport<viskores::cont::arg::TransportTagTopologyFieldIn<TopologyElementTag>,
                 ContObjectType,
                 Device>
{
  VISKORES_IS_ARRAY_HANDLE(ContObjectType);
 
 
  using ExecObjectType = decltype(std::declval<ContObjectType>().PrepareForInput(
    Device(),
    std::declval<viskores::cont::Token&>()));
 
  VISKORES_CONT
  ExecObjectType operator()(const ContObjectType& object,
                            const viskores::cont::CellSet& inputDomain,
                            viskores::Id,
                            viskores::Id,
                            viskores::cont::Token& token) const
  {
    if (object.GetNumberOfValues() != detail::TopologyDomainSize(inputDomain, TopologyElementTag()))
    {
      throw viskores::cont::ErrorBadValue("Input array to worklet invocation the wrong size.");
    }
 
    return object.PrepareForInput(Device(), token);
  }
};
}
}
} // namespace viskores::cont::arg
 
#endif //viskores_cont_arg_TransportTagTopologyFieldIn_h