vtk-m/vtkm/exec/arg/FetchTagArrayDirectOut.h
2019-04-17 10:57:13 -06:00

63 lines
1.8 KiB
C++

//============================================================================
// 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_exec_arg_FetchTagArrayDirectOut_h
#define vtk_m_exec_arg_FetchTagArrayDirectOut_h
#include <vtkm/exec/arg/AspectTagDefault.h>
#include <vtkm/exec/arg/Fetch.h>
namespace vtkm
{
namespace exec
{
namespace arg
{
/// \brief \c Fetch tag for setting array values with direct indexing.
///
/// \c FetchTagArrayDirectOut is a tag used with the \c Fetch class to store
/// values in an array portal. The fetch uses direct indexing, so the thread
/// index given to \c Store is used as the index into the array.
///
struct FetchTagArrayDirectOut
{
};
template <typename ThreadIndicesType, typename ExecObjectType>
struct Fetch<vtkm::exec::arg::FetchTagArrayDirectOut,
vtkm::exec::arg::AspectTagDefault,
ThreadIndicesType,
ExecObjectType>
{
using ValueType = typename ExecObjectType::ValueType;
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC
ValueType Load(const ThreadIndicesType&, const ExecObjectType&) const
{
// Load is a no-op for this fetch.
return ValueType();
}
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC
void Store(const ThreadIndicesType& indices,
const ExecObjectType& arrayPortal,
const ValueType& value) const
{
arrayPortal.Set(indices.GetOutputIndex(), value);
}
};
}
}
} // namespace vtkm::exec::arg
#endif //vtk_m_exec_arg_FetchTagArrayDirectOut_h