vtk-m/vtkm/filter/MaskPoints.hxx
Kenneth Moreland bddad9b386 Remove TryExecute from filters
Now that the dispatcher does its own TryExecute, filters do not need to
do that. This change requires all worklets called by filters to be able
to execute without knowing the device a priori.
2018-10-16 15:59:53 -06:00

110 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 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.
//============================================================================
namespace
{
// Needed to CompactPoints
template <typename BasePolicy>
struct CellSetSingleTypePolicy : public BasePolicy
{
using AllCellSetList = vtkm::cont::CellSetListTagUnstructured;
};
template <typename DerivedPolicy>
inline vtkm::filter::PolicyBase<CellSetSingleTypePolicy<DerivedPolicy>> GetCellSetSingleTypePolicy(
const vtkm::filter::PolicyBase<DerivedPolicy>&)
{
return vtkm::filter::PolicyBase<CellSetSingleTypePolicy<DerivedPolicy>>();
}
}
namespace vtkm
{
namespace filter
{
//-----------------------------------------------------------------------------
inline VTKM_CONT MaskPoints::MaskPoints()
: vtkm::filter::FilterDataSet<MaskPoints>()
, Stride(1)
, CompactPoints(true)
{
}
//-----------------------------------------------------------------------------
template <typename DerivedPolicy>
inline VTKM_CONT vtkm::cont::DataSet MaskPoints::DoExecute(
const vtkm::cont::DataSet& input,
vtkm::filter::PolicyBase<DerivedPolicy> policy)
{
// extract the input cell set
const vtkm::cont::DynamicCellSet& cells = input.GetCellSet(this->GetActiveCellSetIndex());
// run the worklet on the cell set and input field
vtkm::cont::CellSetSingleType<> outCellSet;
vtkm::worklet::MaskPoints worklet;
outCellSet = worklet.Run(vtkm::filter::ApplyPolicy(cells, policy), this->Stride);
// create the output dataset
vtkm::cont::DataSet output;
output.AddCellSet(outCellSet);
output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
// compact the unused points in the output dataset
if (this->CompactPoints)
{
this->Compactor.SetCompactPointFields(true);
return this->Compactor.DoExecute(output, GetCellSetSingleTypePolicy(policy));
}
else
{
return output;
}
}
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy>
inline VTKM_CONT bool MaskPoints::DoMapField(vtkm::cont::DataSet& result,
const vtkm::cont::ArrayHandle<T, StorageType>& input,
const vtkm::filter::FieldMetadata& fieldMeta,
vtkm::filter::PolicyBase<DerivedPolicy> policy)
{
// point data is copied as is because it was not collapsed
if (fieldMeta.IsPointField())
{
if (this->CompactPoints)
{
return this->Compactor.DoMapField(result, input, fieldMeta, policy);
}
else
{
result.AddField(fieldMeta.AsField(input));
return true;
}
}
// cell data does not apply
return false;
}
}
}