vtk-m/vtkm/internal/Invocation.h
Kenneth Moreland b0c5a32611 Add Scatter parameters to Invocation.
We are passing in execution objects with the Invocation when the Worklet
is scheduled, but we are not using it yet.
2015-11-06 18:05:20 -07:00

313 lines
12 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_internal_Invocation_h
#define vtk_m_internal_Invocation_h
#include <vtkm/Types.h>
namespace vtkm {
namespace internal {
/// \brief Container for types when dispatching worklets.
///
/// When a dispatcher and associated class invoke a worklet, they need to keep
/// track of the types of all parameters and the associated features of the
/// worklet. \c Invocation is a class that manages all these types.
///
template<typename _ParameterInterface,
typename _ControlInterface,
typename _ExecutionInterface,
vtkm::IdComponent _InputDomainIndex,
typename _OutputToInputMapType = vtkm::internal::NullType,
typename _VisitArrayType = vtkm::internal::NullType>
struct Invocation
{
/// \brief The types of the parameters
///
/// \c ParameterInterface is (expected to be) a \c FunctionInterface class
/// that lists the types of the parameters for the invocation.
///
typedef _ParameterInterface ParameterInterface;
/// \brief The tags of the \c ControlSignature.
///
/// \c ControlInterface is (expected to be) a \c FunctionInterface class that
/// represents the \c ControlSignature of a worklet (although dispatchers
/// might modify the control signature to provide auxiliary information).
///
typedef _ControlInterface ControlInterface;
/// \brief The tags of the \c ExecutionSignature.
///
/// \c ExecutionInterface is (expected to be) a \c FunctionInterface class that
/// represents the \c ExecutionSignature of a worklet (although dispatchers
/// might modify the execution signature to provide auxiliary information).
///
typedef _ExecutionInterface ExecutionInterface;
/// \brief The index of the input domain.
///
/// When a worklet is invoked, the pool of working threads is based of some
/// constituent element of the input (such as the points or cells). This
/// index points to the parameter that defines this input domain.
///
static const vtkm::IdComponent InputDomainIndex = _InputDomainIndex;
/// \brief An array representing the output to input map.
///
/// When a worklet is invoked, there is an optional scatter operation that
/// allows you to vary the number of outputs each input affects. This is
/// represented with a map where each output points to an input that creates
/// it.
///
typedef _OutputToInputMapType OutputToInputMapType;
/// \brief An array containing visit indices.
///
/// When a worklet is invoked, there is an optinonal scatter operation that
/// allows you to vary the number of outputs each input affects. Thus,
/// multiple outputs may point to the same input. The visit index uniquely
/// identifies which instance each is.
///
typedef _VisitArrayType VisitArrayType;
VTKM_CONT_EXPORT
Invocation(ParameterInterface parameters,
OutputToInputMapType outputToInputMap = OutputToInputMapType(),
VisitArrayType visitArray = VisitArrayType())
: Parameters(parameters),
OutputToInputMap(outputToInputMap),
VisitArray(visitArray)
{ }
/// Defines a new \c Invocation type that is the same as this type except
/// with the \c Parameters replaced.
///
template<typename NewParameterInterface>
struct ChangeParametersType {
typedef Invocation<NewParameterInterface,
ControlInterface,
ExecutionInterface,
InputDomainIndex,
OutputToInputMapType,
VisitArrayType> type;
};
/// Returns a new \c Invocation that is the same as this one except that the
/// \c Parameters are replaced with those provided.
///
template<typename NewParameterInterface>
VTKM_CONT_EXPORT
typename ChangeParametersType<NewParameterInterface>::type
ChangeParameters(NewParameterInterface newParameters) const {
return typename ChangeParametersType<NewParameterInterface>::type(
newParameters, this->OutputToInputMap, this->VisitArray);
}
/// Defines a new \c Invocation type that is the same as this type except
/// with the \c ControlInterface replaced.
///
template<typename NewControlInterface>
struct ChangeControlInterfaceType {
typedef Invocation<ParameterInterface,
NewControlInterface,
ExecutionInterface,
InputDomainIndex> type;
};
/// Returns a new \c Invocation that is the same as this one except that the
/// \c ControlInterface type is changed to the type given.
///
template<typename NewControlInterface>
typename ChangeControlInterfaceType<NewControlInterface>::type
ChangeControlInterface(NewControlInterface) const {
return typename ChangeControlInterfaceType<NewControlInterface>::type(
this->Parameters, this->OutputToInputMap, this->VisitArray);
}
/// Defines a new \c Invocation type that is the same as this type except
/// with the \c ExecutionInterface replaced.
///
template<typename NewExecutionInterface>
struct ChangeExecutionInterfaceType {
typedef Invocation<ParameterInterface,
NewExecutionInterface,
ExecutionInterface,
InputDomainIndex> type;
};
/// Returns a new \c Invocation that is the same as this one except that the
/// \c ExecutionInterface type is changed to the type given.
///
template<typename NewExecutionInterface>
typename ChangeExecutionInterfaceType<NewExecutionInterface>::type
ChangeExecutionInterface(NewExecutionInterface) const {
return typename ChangeExecutionInterfaceType<NewExecutionInterface>::type(
this->Parameters, this->OutputToInputMap, this->VisitArray);
}
/// Defines a new \c Invocation type that is the same as this type except
/// with the \c InputDomainIndex replaced.
///
template<vtkm::IdComponent NewInputDomainIndex>
struct ChangeInputDomainIndexType {
typedef Invocation<ParameterInterface,
ControlInterface,
ExecutionInterface,
NewInputDomainIndex> type;
};
/// Returns a new \c Invocation that is the same as this one except that the
/// \c InputDomainIndex is changed to the static number given.
///
template<vtkm::IdComponent NewInputDomainIndex>
VTKM_EXEC_CONT_EXPORT
typename ChangeInputDomainIndexType<NewInputDomainIndex>::type
ChangeInputDomainIndex() const {
return typename ChangeInputDomainIndexType<NewInputDomainIndex>::type(
this->Parameters, this->OutputToInputMap, this->VisitArray);
}
/// Defines a new \c Invocation type that is the same as this type except
/// with the \c OutputToInputMapType replaced.
///
template<typename NewOutputToInputMapType>
struct ChangeOutputToInputMapType {
typedef Invocation<ParameterInterface,
ControlInterface,
ExecutionInterface,
InputDomainIndex,
NewOutputToInputMapType,
VisitArrayType> type;
};
/// Returns a new \c Invocation that is the same as this one except that the
/// \c OutputToInputMap is replaced with that provided.
///
template<typename NewOutputToInputMapType>
VTKM_CONT_EXPORT
typename ChangeOutputToInputMapType<NewOutputToInputMapType>::type
ChangeOutputToInputMap(NewOutputToInputMapType newOutputToInputMap) const {
return typename ChangeOutputToInputMapType<NewOutputToInputMapType>::type(
this->Parameters, newOutputToInputMap, this->VisitArray);
}
/// Defines a new \c Invocation type that is the same as this type except
/// with the \c VisitArrayType replaced.
///
template<typename NewVisitArrayType>
struct ChangeVisitArrayType {
typedef Invocation<ParameterInterface,
ControlInterface,
ExecutionInterface,
InputDomainIndex,
OutputToInputMapType,
NewVisitArrayType> type;
};
/// Returns a new \c Invocation that is the same as this one except that the
/// \c VisitArray is replaced with that provided.
///
template<typename NewVisitArrayType>
VTKM_CONT_EXPORT
typename ChangeVisitArrayType<NewVisitArrayType>::type
ChangeVisitArray(NewVisitArrayType newVisitArray) const {
return typename ChangeVisitArrayType<NewVisitArrayType>::type(
this->Parameters, this->OutputToInputMap, newVisitArray);
}
/// A convenience typedef for the input domain type.
///
typedef typename ParameterInterface::
template ParameterType<InputDomainIndex>::type InputDomainType;
/// A convenience method to get the input domain object.
///
VTKM_SUPPRESS_EXEC_WARNINGS
VTKM_EXEC_CONT_EXPORT
InputDomainType GetInputDomain() const
{
return this->Parameters.template GetParameter<InputDomainIndex>();
}
/// The state of an \c Invocation object holds the parameters of the
/// invocation. As well as the output to input map and the visit array.
///
ParameterInterface Parameters;
OutputToInputMapType OutputToInputMap;
VisitArrayType VisitArray;
};
/// Convenience function for creating an Invocation object.
///
template<vtkm::IdComponent InputDomainIndex,
typename ControlInterface,
typename ExecutionInterface,
typename ParameterInterface,
typename OutputToInputMapType,
typename VisitArrayType>
VTKM_CONT_EXPORT
vtkm::internal::Invocation<ParameterInterface,
ControlInterface,
ExecutionInterface,
InputDomainIndex,
OutputToInputMapType,
VisitArrayType>
make_Invocation(const ParameterInterface &params,
ControlInterface,
ExecutionInterface,
OutputToInputMapType outputToInputMap,
VisitArrayType visitArray)
{
return vtkm::internal::Invocation<ParameterInterface,
ControlInterface,
ExecutionInterface,
InputDomainIndex,
OutputToInputMapType,
VisitArrayType>(params,
outputToInputMap,
visitArray);
}
template<vtkm::IdComponent InputDomainIndex,
typename ControlInterface,
typename ExecutionInterface,
typename ParameterInterface>
VTKM_CONT_EXPORT
vtkm::internal::Invocation<ParameterInterface,
ControlInterface,
ExecutionInterface,
InputDomainIndex>
make_Invocation(const ParameterInterface &params,
ControlInterface = ControlInterface(),
ExecutionInterface = ExecutionInterface())
{
return vtkm::internal::make_Invocation<InputDomainIndex>(
params,
ControlInterface(),
ExecutionInterface(),
vtkm::internal::NullType(),
vtkm::internal::NullType());
}
}
} // namespace vtkm::internal
#endif //vtk_m_internal_Invocation_h