mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +00:00
66 lines
1.9 KiB
C++
66 lines
1.9 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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//
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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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#ifndef vtk_m_exec_arg_FetchTagKeysIn_h
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#define vtk_m_exec_arg_FetchTagKeysIn_h
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#include <vtkm/exec/arg/AspectTagDefault.h>
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#include <vtkm/exec/arg/Fetch.h>
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#include <vtkm/exec/arg/ThreadIndicesReduceByKey.h>
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#include <vtkm/exec/internal/ReduceByKeyLookup.h>
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namespace vtkm
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{
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namespace exec
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{
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namespace arg
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{
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/// \brief \c Fetch tag for getting key values in a reduce by key.
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///
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/// \c FetchTagKeysIn is a tag used with the \c Fetch class to retrieve keys
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/// from the input domain of a reduce by keys worklet.
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///
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struct FetchTagKeysIn
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{
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};
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template <typename KeyPortalType, typename IdPortalType, typename IdComponentPortalType>
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struct Fetch<
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vtkm::exec::arg::FetchTagKeysIn,
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vtkm::exec::arg::AspectTagDefault,
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vtkm::exec::arg::ThreadIndicesReduceByKey,
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vtkm::exec::internal::ReduceByKeyLookup<KeyPortalType, IdPortalType, IdComponentPortalType>>
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{
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using ThreadIndicesType = vtkm::exec::arg::ThreadIndicesReduceByKey;
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using ExecObjectType =
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vtkm::exec::internal::ReduceByKeyLookup<KeyPortalType, IdPortalType, IdComponentPortalType>;
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using ValueType = typename ExecObjectType::KeyType;
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC
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ValueType Load(const ThreadIndicesType& indices, const ExecObjectType& keys) const
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{
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return keys.UniqueKeys.Get(indices.GetInputIndex());
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}
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VTKM_EXEC
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void Store(const ThreadIndicesType&, const ExecObjectType&, const ValueType&) const
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{
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// Store is a no-op for this fetch.
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}
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};
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}
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}
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} // namespace vtkm::exec::arg
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#endif //vtk_m_exec_arg_FetchTagKeysIn_h
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