mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +00:00
210 lines
7.7 KiB
C++
210 lines
7.7 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 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_internal_DynamicTransform_h
|
|
#define vtk_m_cont_internal_DynamicTransform_h
|
|
|
|
#include "vtkm/internal/IndexTag.h"
|
|
|
|
#include <utility>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace cont
|
|
{
|
|
|
|
template <typename T, typename S>
|
|
class ArrayHandle;
|
|
|
|
class CoordinateSystem;
|
|
class Field;
|
|
|
|
template <vtkm::IdComponent>
|
|
class CellSetStructured;
|
|
template <typename T>
|
|
class CellSetSingleType;
|
|
template <typename T, typename S, typename U, typename V>
|
|
class CellSetExplicit;
|
|
template <typename T, typename S>
|
|
class CellSetPermutation;
|
|
|
|
/// A Generic interface to CastAndCall. The default implementation simply calls
|
|
/// DynamicObject's CastAndCall, but specializations of this function exist for
|
|
/// other classes (e.g. Field, CoordinateSystem, ArrayHandle).
|
|
template <typename DynamicObject, typename Functor, typename... Args>
|
|
void CastAndCall(const DynamicObject& dynamicObject, Functor&& f, Args&&... args)
|
|
{
|
|
dynamicObject.CastAndCall(std::forward<Functor>(f), std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// A specialization of CastAndCall for basic CoordinateSystem to make
|
|
/// it be treated just like any other dynamic object
|
|
// actually implemented in vtkm/cont/CoordinateSystem
|
|
template <typename Functor, typename... Args>
|
|
void CastAndCall(const CoordinateSystem& coords, Functor&& f, Args&&... args);
|
|
|
|
/// A specialization of CastAndCall for basic Field to make
|
|
/// it be treated just like any other dynamic object
|
|
// actually implemented in vtkm/cont/Field
|
|
template <typename Functor, typename... Args>
|
|
void CastAndCall(const vtkm::cont::Field& field, Functor&& f, Args&&... args);
|
|
|
|
/// A specialization of CastAndCall for basic ArrayHandle types,
|
|
/// Since the type is already known no deduction is needed.
|
|
/// This specialization is used to simplify numerous worklet algorithms
|
|
template <typename T, typename U, typename Functor, typename... Args>
|
|
void CastAndCall(const vtkm::cont::ArrayHandle<T, U>& handle, Functor&& f, Args&&... args)
|
|
{
|
|
f(handle, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// A specialization of CastAndCall for basic CellSetStructured types,
|
|
/// Since the type is already known no deduction is needed.
|
|
/// This specialization is used to simplify numerous worklet algorithms
|
|
template <vtkm::IdComponent Dim, typename Functor, typename... Args>
|
|
void CastAndCall(const vtkm::cont::CellSetStructured<Dim>& cellset, Functor&& f, Args&&... args)
|
|
{
|
|
f(cellset, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// A specialization of CastAndCall for basic CellSetSingleType types,
|
|
/// Since the type is already known no deduction is needed.
|
|
/// This specialization is used to simplify numerous worklet algorithms
|
|
template <typename ConnectivityStorageTag, typename Functor, typename... Args>
|
|
void CastAndCall(const vtkm::cont::CellSetSingleType<ConnectivityStorageTag>& cellset,
|
|
Functor&& f,
|
|
Args&&... args)
|
|
{
|
|
f(cellset, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// A specialization of CastAndCall for basic CellSetExplicit types,
|
|
/// Since the type is already known no deduction is needed.
|
|
/// This specialization is used to simplify numerous worklet algorithms
|
|
template <typename T, typename S, typename U, typename V, typename Functor, typename... Args>
|
|
void CastAndCall(const vtkm::cont::CellSetExplicit<T, S, U, V>& cellset,
|
|
Functor&& f,
|
|
Args&&... args)
|
|
{
|
|
f(cellset, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// A specialization of CastAndCall for basic CellSetPermutation types,
|
|
/// Since the type is already known no deduction is needed.
|
|
/// This specialization is used to simplify numerous worklet algorithms
|
|
template <typename PermutationType, typename CellSetType, typename Functor, typename... Args>
|
|
void CastAndCall(const vtkm::cont::CellSetPermutation<PermutationType, CellSetType>& cellset,
|
|
Functor&& f,
|
|
Args&&... args)
|
|
{
|
|
f(cellset, std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// CastAndCall if the condition is true.
|
|
template <typename... Args>
|
|
void ConditionalCastAndCall(std::true_type, Args&&... args)
|
|
{
|
|
vtkm::cont::CastAndCall(std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// No-op variant since the condition is false.
|
|
template <typename... Args>
|
|
void ConditionalCastAndCall(std::false_type, Args&&...)
|
|
{
|
|
}
|
|
|
|
|
|
namespace internal
|
|
{
|
|
|
|
/// Tag used to identify an object that is a dynamic object that contains a
|
|
/// CastAndCall method that iterates over all possible dynamic choices to run
|
|
/// templated code.
|
|
///
|
|
struct DynamicTransformTagCastAndCall
|
|
{
|
|
};
|
|
|
|
/// Tag used to identify an object that is a static object that, when used with
|
|
/// a \c DynamicTransform should just pass itself as a concrete object.
|
|
///
|
|
struct DynamicTransformTagStatic
|
|
{
|
|
};
|
|
|
|
/// A traits class that identifies whether an object used in a \c
|
|
/// DynamicTransform should use a \c CastAndCall functionality or treated as a
|
|
/// static object. The default implementation identifies the object as static
|
|
/// (as most objects are bound to be). Dynamic objects that implement
|
|
/// \c CastAndCall should specialize (or partially specialize) this traits class
|
|
/// to identify the object as dynamic. VTK-m classes like \c DynamicArray are
|
|
/// already specialized.
|
|
///
|
|
template <typename T>
|
|
struct DynamicTransformTraits
|
|
{
|
|
/// A type set to either \c DynamicTransformTagStatic or \c
|
|
/// DynamicTransformTagCastAndCall. The default implementation is set to \c
|
|
/// DynamicTransformTagStatic. Dynamic objects that implement \c CastAndCall
|
|
/// should specialize this class redefine it to \c
|
|
/// DynamicTransformTagCastAndCall.
|
|
///
|
|
using DynamicTag = vtkm::cont::internal::DynamicTransformTagStatic;
|
|
};
|
|
|
|
/// This functor can be used as the transform in the \c DynamicTransformCont
|
|
/// method of \c FunctionInterface. It will allow dynamic objects like
|
|
/// \c DynamicArray to be cast to their concrete types for templated operation.
|
|
///
|
|
struct DynamicTransform
|
|
{
|
|
template <typename InputType, typename ContinueFunctor, vtkm::IdComponent Index>
|
|
VTKM_CONT void operator()(const InputType& input,
|
|
const ContinueFunctor& continueFunc,
|
|
vtkm::internal::IndexTag<Index>) const
|
|
{
|
|
this->DoTransform(
|
|
input,
|
|
continueFunc,
|
|
typename vtkm::cont::internal::DynamicTransformTraits<InputType>::DynamicTag());
|
|
}
|
|
|
|
private:
|
|
template <typename InputType, typename ContinueFunctor>
|
|
VTKM_CONT void DoTransform(const InputType& input,
|
|
const ContinueFunctor& continueFunc,
|
|
vtkm::cont::internal::DynamicTransformTagStatic) const
|
|
{
|
|
continueFunc(input);
|
|
}
|
|
|
|
template <typename InputType, typename ContinueFunctor>
|
|
VTKM_CONT void DoTransform(const InputType& dynamicInput,
|
|
const ContinueFunctor& continueFunc,
|
|
vtkm::cont::internal::DynamicTransformTagCastAndCall) const
|
|
{
|
|
CastAndCall(dynamicInput, continueFunc);
|
|
}
|
|
};
|
|
}
|
|
}
|
|
} // namespace vtkm::cont::internal
|
|
|
|
#endif //vtk_m_cont_internal_DynamicTransform_h
|