vtk-m/vtkm/exec/arg/FetchTagTopologyIn.h
2015-06-03 15:06:43 -04:00

70 lines
2.1 KiB
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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.
//
// Copyright 2014 Sandia Corporation.
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#ifndef vtk_m_exec_arg_FetchTagTopologyIn_h
#define vtk_m_exec_arg_FetchTagTopologyIn_h
#include <vtkm/exec/arg/AspectTagDefault.h>
#include <vtkm/exec/arg/Fetch.h>
namespace vtkm {
namespace exec {
namespace arg {
/// \brief \c Fetch tag for getting topology information.
///
/// \c FetchTagTopologyIn is a tag used with the \c Fetch class to retreive
/// values from a topology object. This default parameter returns
/// the basis topology type, i.e. cell type in a \c WorkletCellMap.
///
struct FetchTagTopologyIn { };
template<typename Invocation, vtkm::IdComponent ParameterIndex>
struct Fetch<
vtkm::exec::arg::FetchTagTopologyIn,
vtkm::exec::arg::AspectTagDefault,
Invocation,
ParameterIndex>
{
typedef typename Invocation::ParameterInterface::
template ParameterType<ParameterIndex>::type ExecObjectType;
typedef vtkm::Id ValueType;
VTKM_EXEC_EXPORT
ValueType Load(vtkm::Id index, const Invocation &invocation) const
{
return invocation.Parameters.template GetParameter<ParameterIndex>().
GetElementShapeType(index);
}
VTKM_EXEC_EXPORT
void Store(vtkm::Id, const Invocation &, const ValueType &) const
{
// Store is a no-op for this fetch.
}
};
}
}
} // namespace vtkm::exec::arg
#endif //vtk_m_exec_arg_FetchTagTopologyIn_h