mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
80809a8f0f
This is a simple version of a dispatcher, but an important one. Note that there is an issue brought up with UnitTestWorkletMapField in that there needs to be better ways to specify worklet argument types.
94 lines
3.5 KiB
C++
94 lines
3.5 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_worklet_Dispatcher_MapField_h
|
|
#define vtk_m_worklet_Dispatcher_MapField_h
|
|
|
|
#include <vtkm/cont/DeviceAdapter.h>
|
|
#include <vtkm/worklet/WorkletMapField.h>
|
|
#include <vtkm/worklet/internal/DispatcherBase.h>
|
|
|
|
namespace vtkm {
|
|
namespace worklet {
|
|
|
|
/// \brief Dispatcher for worklets that inherit from \c WorkletMapField.
|
|
///
|
|
template<typename WorkletType,
|
|
typename Device = VTKM_DEFAULT_DEVICE_ADAPTER_TAG>
|
|
class DispatcherMapField :
|
|
public vtkm::worklet::internal::DispatcherBase<
|
|
DispatcherMapField<WorkletType,Device>,
|
|
WorkletType,
|
|
vtkm::worklet::WorkletMapField,
|
|
Device>
|
|
{
|
|
typedef vtkm::worklet::internal::DispatcherBase<
|
|
DispatcherMapField<WorkletType,Device>,
|
|
WorkletType,
|
|
vtkm::worklet::WorkletMapField,
|
|
Device> Superclass;
|
|
|
|
public:
|
|
VTKM_CONT_EXPORT
|
|
DispatcherMapField(const WorkletType &worklet = WorkletType())
|
|
: Superclass(worklet) { }
|
|
|
|
template<typename Invocation>
|
|
VTKM_CONT_EXPORT
|
|
void DoInvoke(const Invocation &invocation) const
|
|
{
|
|
// The parameter for the input domain is stored in the Invocation. (It is
|
|
// also in the worklet, but it is safer to get it from the Invocation
|
|
// in case some other dispatch operation had to modify it.)
|
|
static const vtkm::IdComponent InputDomainIndex =
|
|
Invocation::InputDomainIndex;
|
|
|
|
// ParameterInterface (from Invocation) is a FunctionInterface type
|
|
// containing types for all objects passed to the Invoke method (with
|
|
// some dynamic casting performed so objects like DynamicArrayHandle get
|
|
// cast to ArrayHandle).
|
|
typedef typename Invocation::ParameterInterface ParameterInterface;
|
|
|
|
// This is the type for the input domain (derived from the last two things
|
|
// we got from the Invocation).
|
|
typedef typename ParameterInterface::
|
|
template ParameterType<InputDomainIndex>::type InputDomainType;
|
|
|
|
// We can pull the input domain parameter (the data specifying the input
|
|
// domain) from the invocation object.
|
|
InputDomainType inputDomain =
|
|
invocation.Parameters.template GetParameter<InputDomainIndex>();
|
|
|
|
// For a DispatcherMapField, the inputDomain must be an ArrayHandle (or
|
|
// a DynamicArrayHandle that gets cast to one). The size of the domain
|
|
// (number of threads/worklet instances) is equal to the size of the
|
|
// array.
|
|
vtkm::Id numInstances = inputDomain.GetNumberOfValues();
|
|
|
|
// A MapField is a pretty straightforward dispatch. Once we know the number
|
|
// of invocations, the superclass can take care of the rest.
|
|
this->BasicInvoke(invocation, numInstances);
|
|
}
|
|
};
|
|
|
|
}
|
|
} // namespace vtkm::worklet
|
|
|
|
#endif //vtk_m_worklet_Dispatcher_MapField_h
|