5dd346007b
clang-format BinPack settings have been disabled to make sure that the VTK-m style guideline is obeyed.
123 lines
3.4 KiB
C++
123 lines
3.4 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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// 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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// Copyright 2017 Sandia Corporation.
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// Copyright 2017 UT-Battelle, LLC.
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// Copyright 2017 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_cont_ArrayRangeCompute_hxx
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#define vtk_m_cont_ArrayRangeCompute_hxx
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#include <vtkm/cont/ArrayRangeCompute.h>
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#include <vtkm/BinaryOperators.h>
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#include <vtkm/VecTraits.h>
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#include <vtkm/cont/DeviceAdapterAlgorithm.h>
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#include <vtkm/cont/TryExecute.h>
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namespace vtkm
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{
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namespace cont
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{
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namespace detail
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{
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template <typename ArrayHandleType>
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struct ArrayRangeComputeFunctor
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{
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VTKM_IS_ARRAY_HANDLE(ArrayHandleType);
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ArrayHandleType InputArray;
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vtkm::cont::ArrayHandle<vtkm::Range> RangeArray;
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VTKM_CONT
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ArrayRangeComputeFunctor(const ArrayHandleType& input)
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: InputArray(input)
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{
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}
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template <typename Device>
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VTKM_CONT bool operator()(Device)
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{
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VTKM_IS_DEVICE_ADAPTER_TAG(Device);
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using ValueType = typename ArrayHandleType::ValueType;
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using VecTraits = vtkm::VecTraits<ValueType>;
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const vtkm::IdComponent NumberOfComponents = VecTraits::NUM_COMPONENTS;
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typedef vtkm::cont::DeviceAdapterAlgorithm<Device> Algorithm;
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this->RangeArray.Allocate(NumberOfComponents);
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if (this->InputArray.GetNumberOfValues() < 1)
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{
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for (vtkm::IdComponent i = 0; i < NumberOfComponents; ++i)
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{
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this->RangeArray.GetPortalControl().Set(i, vtkm::Range());
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}
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return true;
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}
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vtkm::Vec<ValueType, 2> initial(this->InputArray.GetPortalConstControl().Get(0));
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vtkm::Vec<ValueType, 2> result =
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Algorithm::Reduce(this->InputArray, initial, vtkm::MinAndMax<ValueType>());
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for (vtkm::IdComponent i = 0; i < NumberOfComponents; ++i)
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{
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this->RangeArray.GetPortalControl().Set(
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i,
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vtkm::Range(VecTraits::GetComponent(result[0], i), VecTraits::GetComponent(result[1], i)));
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}
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return true;
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}
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};
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template <typename ArrayHandleType>
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inline vtkm::cont::ArrayHandle<vtkm::Range> ArrayRangeComputeImpl(
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const ArrayHandleType& input,
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vtkm::cont::RuntimeDeviceTracker tracker)
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{
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VTKM_IS_ARRAY_HANDLE(ArrayHandleType);
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detail::ArrayRangeComputeFunctor<ArrayHandleType> functor(input);
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if (!vtkm::cont::TryExecute(functor, tracker))
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{
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throw vtkm::cont::ErrorExecution("Failed to run ArrayRangeComputation on any device.");
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}
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return functor.RangeArray;
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}
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} // namespace detail
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template <typename ArrayHandleType>
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inline vtkm::cont::ArrayHandle<vtkm::Range> ArrayRangeCompute(
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const ArrayHandleType& input,
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vtkm::cont::RuntimeDeviceTracker tracker)
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{
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VTKM_IS_ARRAY_HANDLE(ArrayHandleType);
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return detail::ArrayRangeComputeImpl(input, tracker);
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}
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}
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} // namespace vtkm::cont
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#endif //vtk_m_cont_ArrayRangeCompute_hxx
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