vtk-m/vtkm/filter/CrossProduct.hxx
Kenneth Moreland d879188de0 Make DispatcherBase invoke using a TryExecute
Rather than force all dispatchers to be templated on a device adapter,
instead use a TryExecute internally within the invoke to select a device
adapter.

Because this removes the need to declare a device when invoking a
worklet, this commit also removes the need to declare a device in
several other areas of the code.
2018-08-29 19:18:54 -07:00

118 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.
//============================================================================
#include <vtkm/cont/ArrayHandleCast.h>
#include <vtkm/filter/internal/CreateResult.h>
#include <vtkm/worklet/DispatcherMapField.h>
namespace vtkm
{
namespace filter
{
namespace detail
{
template <typename T, typename DeviceAdapter>
struct CrossProductFunctor
{
vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> OutArray;
template <typename PrimaryFieldType, typename SecondaryFieldType>
void operator()(const SecondaryFieldType& secondaryField, const PrimaryFieldType& primaryField)
{
vtkm::worklet::DispatcherMapField<vtkm::worklet::CrossProduct> dispatcher;
dispatcher.SetDevice(DeviceAdapter());
dispatcher.Invoke(primaryField,
vtkm::cont::make_ArrayHandleCast<vtkm::Vec<T, 3>>(secondaryField),
this->OutArray);
}
};
} // namespace detail
//-----------------------------------------------------------------------------
inline VTKM_CONT CrossProduct::CrossProduct()
: vtkm::filter::FilterField<CrossProduct>()
, SecondaryFieldName()
, SecondaryFieldAssociation(vtkm::cont::Field::Association::ANY)
, UseCoordinateSystemAsSecondaryField(false)
, SecondaryCoordinateSystemIndex(0)
{
this->SetOutputFieldName("crossproduct");
}
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
inline VTKM_CONT vtkm::cont::DataSet CrossProduct::DoExecute(
const vtkm::cont::DataSet& inDataSet,
const vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>, StorageType>& field,
const vtkm::filter::FieldMetadata& fieldMetadata,
const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
const DeviceAdapter&)
{
detail::CrossProductFunctor<T, DeviceAdapter> functor;
try
{
if (this->UseCoordinateSystemAsSecondaryField)
{
vtkm::cont::CastAndCall(
inDataSet.GetCoordinateSystem(this->GetSecondaryCoordinateSystemIndex()), functor, field);
}
else
{
using Traits = vtkm::filter::FilterTraits<CrossProduct>;
using TypeList = vtkm::ListTagBase<vtkm::Vec<T, 3>>;
vtkm::filter::ApplyPolicy(
inDataSet.GetField(this->SecondaryFieldName, this->SecondaryFieldAssociation),
policy,
Traits())
.ResetTypeList(TypeList())
.CastAndCall(functor, field);
}
}
catch (const vtkm::cont::Error&)
{
throw vtkm::cont::ErrorExecution("failed to execute.");
}
return internal::CreateResult(inDataSet,
functor.OutArray,
this->GetOutputFieldName(),
fieldMetadata.GetAssociation(),
fieldMetadata.GetCellSetName());
}
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
inline VTKM_CONT bool CrossProduct::DoMapField(vtkm::cont::DataSet& result,
const vtkm::cont::ArrayHandle<T, StorageType>& input,
const vtkm::filter::FieldMetadata& fieldMeta,
const vtkm::filter::PolicyBase<DerivedPolicy>&,
DeviceAdapter)
{
//we copy the input handle to the result dataset, reusing the metadata
result.AddField(fieldMeta.AsField(input));
return true;
}
}
} // namespace vtkm::filter