c3a3184d51
Sandia National Laboratories recently changed management from the Sandia Corporation to the National Technology & Engineering Solutions of Sandia, LLC (NTESS). The copyright statements need to be updated accordingly.
89 lines
2.7 KiB
C++
89 lines
2.7 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.
|
|
//
|
|
// Copyright 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
|
|
// Copyright 2015 UT-Battelle, LLC.
|
|
// Copyright 2015 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-NA0003525 with NTESS,
|
|
// the U.S. Government retains certain rights in this software.
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//
|
|
//=============================================================================
|
|
#ifndef vtk_m_cont_ArrayHandleConstant_h
|
|
#define vtk_m_cont_ArrayHandleConstant_h
|
|
|
|
#include <vtkm/cont/ArrayHandleImplicit.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace cont
|
|
{
|
|
|
|
namespace detail
|
|
{
|
|
|
|
template <typename ValueType>
|
|
struct VTKM_ALWAYS_EXPORT ConstantFunctor
|
|
{
|
|
VTKM_EXEC_CONT
|
|
ConstantFunctor(const ValueType& value = ValueType())
|
|
: Value(value)
|
|
{
|
|
}
|
|
|
|
VTKM_EXEC_CONT
|
|
ValueType operator()(vtkm::Id vtkmNotUsed(index)) const { return this->Value; }
|
|
|
|
private:
|
|
ValueType Value;
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
/// \brief An array handle with a constant value.
|
|
///
|
|
/// ArrayHandleConstant is an implicit array handle with a constant value. A
|
|
/// constant array handle is constructed by giving a value and an array length.
|
|
/// The resulting array is of the given size with each entry the same value
|
|
/// given in the constructor. The array is defined implicitly, so there it
|
|
/// takes (almost) no memory.
|
|
///
|
|
template <typename T>
|
|
class ArrayHandleConstant : public vtkm::cont::ArrayHandleImplicit<detail::ConstantFunctor<T>>
|
|
{
|
|
public:
|
|
VTKM_ARRAY_HANDLE_SUBCLASS(ArrayHandleConstant,
|
|
(ArrayHandleConstant<T>),
|
|
(vtkm::cont::ArrayHandleImplicit<detail::ConstantFunctor<T>>));
|
|
|
|
VTKM_CONT
|
|
ArrayHandleConstant(T value, vtkm::Id numberOfValues = 0)
|
|
: Superclass(detail::ConstantFunctor<T>(value), numberOfValues)
|
|
{
|
|
}
|
|
};
|
|
|
|
/// make_ArrayHandleConstant is convenience function to generate an
|
|
/// ArrayHandleImplicit. It takes a functor and the virtual length of the
|
|
/// array.
|
|
///
|
|
template <typename T>
|
|
vtkm::cont::ArrayHandleConstant<T> make_ArrayHandleConstant(T value, vtkm::Id numberOfValues)
|
|
{
|
|
return vtkm::cont::ArrayHandleConstant<T>(value, numberOfValues);
|
|
}
|
|
}
|
|
} // vtkm::cont
|
|
|
|
#endif //vtk_m_cont_ArrayHandleConstant_h
|