mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
104 lines
3.7 KiB
C++
104 lines
3.7 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 Sandia Corporation.
|
|
// Copyright 2014 UT-Battelle, LLC.
|
|
// Copyright 2014 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
|
|
// 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"
|
|
|
|
namespace vtkm {
|
|
namespace cont {
|
|
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.
|
|
///
|
|
typedef vtkm::cont::internal::DynamicTransformTagStatic DynamicTag;
|
|
};
|
|
|
|
/// 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_EXPORT
|
|
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_EXPORT
|
|
void DoTransform(const InputType &input,
|
|
const ContinueFunctor &continueFunc,
|
|
vtkm::cont::internal::DynamicTransformTagStatic) const
|
|
{
|
|
continueFunc(input);
|
|
}
|
|
|
|
template<typename InputType, typename ContinueFunctor>
|
|
VTKM_CONT_EXPORT
|
|
void DoTransform(const InputType &dynamicInput,
|
|
const ContinueFunctor &continueFunc,
|
|
vtkm::cont::internal::DynamicTransformTagCastAndCall) const
|
|
{
|
|
dynamicInput.CastAndCall(continueFunc);
|
|
}
|
|
};
|
|
|
|
}
|
|
}
|
|
} // namespace vtkm::cont::internal
|
|
|
|
#endif //vtk_m_cont_internal_DynamicTransform_h
|