mirror of
https://gitlab.kitware.com/vtk/vtk-m
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d0396e2a40
This change is needed for being able to use different thread indices types without changing Fetchs. Basically decoupling those two areas. 1. This commit removes concrete specialization instantiations of ThreadIndicesTypes in all of the Fetch's specializations. 2. It also moves the ThreadIndicesType template parameter from the Fetch struct to a template parameter in their methods Load/Store. Signed-off-by: Vicente Adolfo Bolea Sanchez <vicente.bolea@kitware.com>
78 lines
2.2 KiB
C++
78 lines
2.2 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_FetchTagArrayDirectIn_h
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#define vtk_m_exec_arg_FetchTagArrayDirectIn_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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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 array values with direct indexing.
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///
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/// \c FetchTagArrayDirectIn is a tag used with the \c Fetch class to retrieve
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/// values from an array portal. The fetch uses direct indexing, so the thread
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/// index given to \c Load is used as the index into the array.
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///
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struct FetchTagArrayDirectIn
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{
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};
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VTKM_SUPPRESS_EXEC_WARNINGS
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template <typename T, typename U>
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inline VTKM_EXEC T load(const U& u, vtkm::Id v)
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{
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return u.Get(v);
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}
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VTKM_SUPPRESS_EXEC_WARNINGS
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template <typename T, typename U>
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inline VTKM_EXEC T load(const U* u, vtkm::Id v)
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{
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return u->Get(v);
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}
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template <typename ExecObjectType>
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struct Fetch<vtkm::exec::arg::FetchTagArrayDirectIn,
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vtkm::exec::arg::AspectTagDefault,
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ExecObjectType>
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{
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//need to remove pointer type from ThreadIdicesType
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using ET = typename std::remove_const<typename std::remove_pointer<ExecObjectType>::type>::type;
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using PortalType =
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typename std::conditional<std::is_pointer<ExecObjectType>::value, const ET*, const ET&>::type;
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using ValueType = typename ET::ValueType;
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VTKM_SUPPRESS_EXEC_WARNINGS
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template <typename ThreadIndicesType>
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VTKM_EXEC ValueType Load(const ThreadIndicesType& indices, PortalType arrayPortal) const
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{
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return load<ValueType>(arrayPortal, indices.GetInputIndex());
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}
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template <typename ThreadIndicesType>
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VTKM_EXEC void Store(const ThreadIndicesType&, PortalType, 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_FetchTagArrayDirectIn_h
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