bddad9b386
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.
98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_worklet_WarpScalar_h
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#define vtk_m_worklet_WarpScalar_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/VecTraits.h>
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namespace vtkm
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{
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namespace worklet
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{
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// A functor that modify points by moving points along point normals by the scalar
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// amount times the scalar factor. It's a VTK-m version of the vtkWarpScalar in VTK.
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// Useful for creating carpet or x-y-z plots.
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// It doesn't modify the point coordinates, but creates a new point coordinates
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// that have been warped.
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class WarpScalar
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{
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public:
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class WarpScalarImp : public vtkm::worklet::WorkletMapField
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{
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public:
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using ControlSignature = void(FieldIn<Vec3>, FieldIn<Vec3>, FieldIn<Scalar>, FieldOut<Vec3>);
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using ExecutionSignature = void(_1, _2, _3, _4);
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VTKM_CONT
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WarpScalarImp(vtkm::FloatDefault scaleAmount)
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: ScaleAmount(scaleAmount)
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{
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}
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VTKM_EXEC
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void operator()(const vtkm::Vec<vtkm::FloatDefault, 3>& point,
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const vtkm::Vec<vtkm::FloatDefault, 3>& normal,
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const vtkm::FloatDefault& scaleFactor,
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vtkm::Vec<vtkm::FloatDefault, 3>& result) const
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{
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result = point + this->ScaleAmount * scaleFactor * normal;
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}
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template <typename T1, typename T2, typename T3>
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VTKM_EXEC void operator()(const vtkm::Vec<T1, 3>& point,
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const vtkm::Vec<T2, 3>& normal,
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const T3& scaleFactor,
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vtkm::Vec<T1, 3>& result) const
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{
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result = point + static_cast<T1>(this->ScaleAmount * scaleFactor) * normal;
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}
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private:
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vtkm::FloatDefault ScaleAmount;
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};
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// Execute the WarpScalar worklet given the points, vector and a scale factor.
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// Scale factor can differs per point.
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template <typename PointType,
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typename NormalType,
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typename ScaleFactorType,
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typename ResultType,
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typename ScaleAmountType>
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void Run(PointType point,
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NormalType normal,
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ScaleFactorType scaleFactor,
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ScaleAmountType scale,
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ResultType warpedPoint)
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{
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WarpScalarImp warpScalarImp(scale);
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vtkm::worklet::DispatcherMapField<WarpScalarImp> dispatcher(warpScalarImp);
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dispatcher.Invoke(point, normal, scaleFactor, warpedPoint);
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}
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};
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}
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} // namespace vtkm::worklet
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#endif // vtk_m_worklet_WarpScalar_h
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