VTK-m  2.2
ThreadIndices.h
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2 // Copyright (c) Kitware, Inc.
3 // All rights reserved.
4 // See LICENSE.txt for details.
5 //
6 // This software is distributed WITHOUT ANY WARRANTY; without even
7 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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9 //============================================================================
10 #ifndef vtk_m_exec_arg_ThreadIndices_h
11 #define vtk_m_exec_arg_ThreadIndices_h
12 
14 #include <vtkm/exec/arg/Fetch.h>
15 
16 namespace vtkm
17 {
18 namespace exec
19 {
20 namespace arg
21 {
22 
30 {
31 };
32 
45 {
46  // The index does not really matter because the fetch is going to ignore it.
47  // However, it still has to point to a valid parameter in the
48  // ControlSignature because the templating is going to grab a fetch tag
49  // whether we use it or not. 1 should be guaranteed to be valid since you
50  // need at least one argument for the input domain.
51  static constexpr vtkm::IdComponent INDEX = 1;
53 };
54 
55 template <typename FetchTag, typename ExecObjectType>
56 struct Fetch<FetchTag, vtkm::exec::arg::AspectTagThreadIndices, ExecObjectType>
57 {
58 
59  template <typename ThreadIndicesType>
60  VTKM_EXEC const ThreadIndicesType& Load(const ThreadIndicesType& indices,
61  const ExecObjectType&) const
62  {
63  return indices;
64  }
65 
66  template <typename ThreadIndicesType>
67  VTKM_EXEC void Store(const ThreadIndicesType&,
68  const ExecObjectType&,
69  const ThreadIndicesType&) const
70  {
71  // Store is a no-op.
72  }
73 };
74 }
75 }
76 } // namespace vtkm::exec::arg
77 
78 #endif //vtk_m_exec_arg_ThreadIndices_h
vtkm::exec::arg::ThreadIndices::INDEX
static constexpr vtkm::IdComponent INDEX
Definition: ThreadIndices.h:51
vtkm::exec::arg::AspectTagThreadIndices
Aspect tag to use for getting the thread indices.
Definition: ThreadIndices.h:29
VTKM_EXEC
#define VTKM_EXEC
Definition: ExportMacros.h:51
vtkm
Groups connected points that have the same field value.
Definition: Atomic.h:19
vtkm::exec::arg::Fetch< FetchTag, vtkm::exec::arg::AspectTagThreadIndices, ExecObjectType >::Load
const ThreadIndicesType & Load(const ThreadIndicesType &indices, const ExecObjectType &) const
Definition: ThreadIndices.h:60
vtkm::exec::arg::ExecutionSignatureTagBase
The base class for all tags used in an ExecutionSignature.
Definition: ExecutionSignatureTagBase.h:37
vtkm::IdComponent
vtkm::Int32 IdComponent
Base type to use to index small lists.
Definition: Types.h:194
vtkm::exec::arg::Fetch< FetchTag, vtkm::exec::arg::AspectTagThreadIndices, ExecObjectType >::Store
void Store(const ThreadIndicesType &, const ExecObjectType &, const ThreadIndicesType &) const
Definition: ThreadIndices.h:67
vtkm::exec::arg::Fetch
Class for loading and storing values in thread instance.
Definition: Fetch.h:49
ExecutionSignatureTagBase.h
Fetch.h
vtkm::exec::arg::ThreadIndices
The ExecutionSignature tag to use to get the thread indices.
Definition: ThreadIndices.h:44