mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 02:25:42 +00:00
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.
146 lines
4.3 KiB
C++
146 lines
4.3 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 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
|
|
// Copyright 2014 UT-Battelle, LLC.
|
|
// Copyright 2014 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_ArrayHandleCounting_h
|
|
#define vtk_m_cont_ArrayHandleCounting_h
|
|
|
|
#include <vtkm/cont/ArrayHandle.h>
|
|
#include <vtkm/cont/StorageImplicit.h>
|
|
|
|
#include <vtkm/VecTraits.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace cont
|
|
{
|
|
|
|
namespace internal
|
|
{
|
|
|
|
/// \brief An implicit array portal that returns an counting value.
|
|
template <class CountingValueType>
|
|
class VTKM_ALWAYS_EXPORT ArrayPortalCounting
|
|
{
|
|
using ComponentType = typename vtkm::VecTraits<CountingValueType>::ComponentType;
|
|
|
|
public:
|
|
using ValueType = CountingValueType;
|
|
|
|
VTKM_EXEC_CONT
|
|
ArrayPortalCounting()
|
|
: Start(0)
|
|
, Step(1)
|
|
, NumberOfValues(0)
|
|
{
|
|
}
|
|
|
|
VTKM_EXEC_CONT
|
|
ArrayPortalCounting(ValueType start, ValueType step, vtkm::Id numValues)
|
|
: Start(start)
|
|
, Step(step)
|
|
, NumberOfValues(numValues)
|
|
{
|
|
}
|
|
|
|
template <typename OtherValueType>
|
|
VTKM_EXEC_CONT ArrayPortalCounting(const ArrayPortalCounting<OtherValueType>& src)
|
|
: Start(src.Start)
|
|
, Step(src.Step)
|
|
, NumberOfValues(src.NumberOfValues)
|
|
{
|
|
}
|
|
|
|
template <typename OtherValueType>
|
|
VTKM_EXEC_CONT ArrayPortalCounting<ValueType>& operator=(
|
|
const ArrayPortalCounting<OtherValueType>& src)
|
|
{
|
|
this->Start = src.Start;
|
|
this->Step = src.Step;
|
|
this->NumberOfValues = src.NumberOfValues;
|
|
return *this;
|
|
}
|
|
|
|
VTKM_EXEC_CONT
|
|
vtkm::Id GetNumberOfValues() const { return this->NumberOfValues; }
|
|
|
|
VTKM_EXEC_CONT
|
|
ValueType Get(vtkm::Id index) const
|
|
{
|
|
return ValueType(this->Start + this->Step * ValueType(static_cast<ComponentType>(index)));
|
|
}
|
|
|
|
VTKM_EXEC_CONT
|
|
void Set(vtkm::Id vtkmNotUsed(index), const ValueType& vtkmNotUsed(value)) const
|
|
{
|
|
VTKM_ASSERT(false && "Cannot write to read-only counting array.");
|
|
}
|
|
|
|
private:
|
|
ValueType Start;
|
|
ValueType Step;
|
|
vtkm::Id NumberOfValues;
|
|
};
|
|
|
|
/// A convenience class that provides a typedef to the appropriate tag for
|
|
/// a counting storage.
|
|
template <typename ConstantValueType>
|
|
struct ArrayHandleCountingTraits
|
|
{
|
|
using Tag =
|
|
vtkm::cont::StorageTagImplicit<vtkm::cont::internal::ArrayPortalCounting<ConstantValueType>>;
|
|
};
|
|
|
|
} // namespace internal
|
|
|
|
/// ArrayHandleCounting is a specialization of ArrayHandle. By default it
|
|
/// contains a increment value, that is increment for each step between zero
|
|
/// and the passed in length
|
|
template <typename CountingValueType>
|
|
class ArrayHandleCounting : public vtkm::cont::ArrayHandle<
|
|
CountingValueType,
|
|
typename internal::ArrayHandleCountingTraits<CountingValueType>::Tag>
|
|
{
|
|
public:
|
|
VTKM_ARRAY_HANDLE_SUBCLASS(
|
|
ArrayHandleCounting,
|
|
(ArrayHandleCounting<CountingValueType>),
|
|
(vtkm::cont::ArrayHandle<
|
|
CountingValueType,
|
|
typename internal::ArrayHandleCountingTraits<CountingValueType>::Tag>));
|
|
|
|
VTKM_CONT
|
|
ArrayHandleCounting(CountingValueType start, CountingValueType step, vtkm::Id length)
|
|
: Superclass(typename Superclass::PortalConstControl(start, step, length))
|
|
{
|
|
}
|
|
};
|
|
|
|
/// A convenience function for creating an ArrayHandleCounting. It takes the
|
|
/// value to start counting from and and the number of times to increment.
|
|
template <typename CountingValueType>
|
|
VTKM_CONT vtkm::cont::ArrayHandleCounting<CountingValueType>
|
|
make_ArrayHandleCounting(CountingValueType start, CountingValueType step, vtkm::Id length)
|
|
{
|
|
return vtkm::cont::ArrayHandleCounting<CountingValueType>(start, step, length);
|
|
}
|
|
}
|
|
} // namespace vtkm::cont
|
|
|
|
#endif //vtk_m_cont_ArrayHandleCounting_h
|