mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
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.
548 lines
18 KiB
C++
548 lines
18 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 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2017 UT-Battelle, LLC.
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// Copyright 2017 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_ExtractStructured_h
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#define vtk_m_worklet_ExtractStructured_h
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#include <vtkm/RangeId3.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/ArrayHandleImplicit.h>
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/ArrayHandleTransform.h>
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#include <vtkm/cont/ArrayHandleUniformPointCoordinates.h>
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#include <vtkm/cont/CellSetListTag.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/cont/DynamicCellSet.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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namespace extractstructured
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{
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namespace internal
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{
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class SubArrayPermutePoints
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{
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public:
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SubArrayPermutePoints() = default;
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SubArrayPermutePoints(vtkm::Id size,
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vtkm::Id first,
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vtkm::Id last,
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vtkm::Id stride,
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bool includeBoundary)
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: MaxIdx(size - 1)
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, First(first)
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, Last(last)
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, Stride(stride)
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, IncludeBoundary(includeBoundary)
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{
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}
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VTKM_EXEC_CONT
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vtkm::Id operator()(vtkm::Id idx) const
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{
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return (this->IncludeBoundary && (idx == this->MaxIdx)) ? (this->Last)
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: (this->First + (idx * this->Stride));
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}
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private:
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vtkm::Id MaxIdx;
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vtkm::Id First, Last;
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vtkm::Id Stride;
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bool IncludeBoundary;
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};
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template <vtkm::IdComponent Dimensions>
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class LogicalToFlatIndex;
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template <>
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class LogicalToFlatIndex<1>
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{
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public:
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LogicalToFlatIndex() = default;
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explicit LogicalToFlatIndex(const vtkm::Id3&) {}
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VTKM_EXEC_CONT
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vtkm::Id operator()(const vtkm::Id3& index) const { return index[0]; }
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};
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template <>
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class LogicalToFlatIndex<2>
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{
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public:
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LogicalToFlatIndex() = default;
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explicit LogicalToFlatIndex(const vtkm::Id3& dim)
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: XDim(dim[0])
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{
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}
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VTKM_EXEC_CONT
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vtkm::Id operator()(const vtkm::Id3& index) const { return index[0] + index[1] * this->XDim; }
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private:
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vtkm::Id XDim;
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};
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template <>
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class LogicalToFlatIndex<3>
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{
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public:
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LogicalToFlatIndex() = default;
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explicit LogicalToFlatIndex(const vtkm::Id3& dim)
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: XDim(dim[0])
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, XYDim(dim[0] * dim[1])
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{
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}
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VTKM_EXEC_CONT
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vtkm::Id operator()(const vtkm::Id3& index) const
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{
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return index[0] + index[1] * this->XDim + index[2] * this->XYDim;
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}
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private:
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vtkm::Id XDim, XYDim;
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};
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}
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} // extractstructured::internal
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class ExtractStructured
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{
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public:
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using DynamicCellSetStructured =
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vtkm::cont::DynamicCellSetBase<vtkm::cont::CellSetListTagStructured>;
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private:
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using AxisIndexArrayPoints =
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vtkm::cont::ArrayHandleImplicit<extractstructured::internal::SubArrayPermutePoints>;
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using PointIndexArray = vtkm::cont::ArrayHandleCartesianProduct<AxisIndexArrayPoints,
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AxisIndexArrayPoints,
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AxisIndexArrayPoints>;
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using AxisIndexArrayCells = vtkm::cont::ArrayHandleCounting<vtkm::Id>;
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using CellIndexArray = vtkm::cont::ArrayHandleCartesianProduct<AxisIndexArrayCells,
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AxisIndexArrayCells,
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AxisIndexArrayCells>;
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static AxisIndexArrayPoints MakeAxisIndexArrayPoints(vtkm::Id count,
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vtkm::Id first,
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vtkm::Id last,
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vtkm::Id stride,
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bool includeBoundary)
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{
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auto fnctr = extractstructured::internal::SubArrayPermutePoints(
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count, first, last, stride, includeBoundary);
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return vtkm::cont::make_ArrayHandleImplicit(fnctr, count);
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}
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static AxisIndexArrayCells MakeAxisIndexArrayCells(vtkm::Id count,
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vtkm::Id start,
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vtkm::Id stride)
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{
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return vtkm::cont::make_ArrayHandleCounting(start, stride, count);
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}
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static DynamicCellSetStructured MakeCellSetStructured(const vtkm::Id3& dimensions)
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{
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int dimensionality = 0;
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vtkm::Id xyz[3];
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for (int i = 0; i < 3; ++i)
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{
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if (dimensions[i] > 1)
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{
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xyz[dimensionality++] = dimensions[i];
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}
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}
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switch (dimensionality)
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{
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case 1:
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{
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vtkm::cont::CellSetStructured<1> outCs;
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outCs.SetPointDimensions(xyz[0]);
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return outCs;
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}
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case 2:
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{
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vtkm::cont::CellSetStructured<2> outCs;
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outCs.SetPointDimensions(vtkm::Id2(xyz[0], xyz[1]));
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return outCs;
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}
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case 3:
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{
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vtkm::cont::CellSetStructured<3> outCs;
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outCs.SetPointDimensions(vtkm::Id3(xyz[0], xyz[1], xyz[2]));
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return outCs;
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}
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default:
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return DynamicCellSetStructured();
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}
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}
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public:
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template <vtkm::IdComponent Dimensionality>
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DynamicCellSetStructured Run(const vtkm::cont::CellSetStructured<Dimensionality>& cellset,
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const vtkm::RangeId3& voi,
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const vtkm::Id3& sampleRate,
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bool includeBoundary)
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{
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// Verify input parameters
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vtkm::Vec<vtkm::Id, Dimensionality> ptdim(cellset.GetPointDimensions());
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switch (Dimensionality)
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{
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case 1:
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{
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if (sampleRate[0] < 1)
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{
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throw vtkm::cont::ErrorBadValue("Bad sampling rate");
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}
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this->SampleRate = vtkm::Id3(sampleRate[0], 1, 1);
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this->InputDimensions = vtkm::Id3(ptdim[0], 1, 1);
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break;
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}
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case 2:
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{
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if (sampleRate[0] < 1 || sampleRate[1] < 1)
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{
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throw vtkm::cont::ErrorBadValue("Bad sampling rate");
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}
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this->SampleRate = vtkm::Id3(sampleRate[0], sampleRate[1], 1);
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this->InputDimensions = vtkm::Id3(ptdim[0], ptdim[1], 1);
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break;
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}
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case 3:
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{
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if (sampleRate[0] < 1 || sampleRate[1] < 1 || sampleRate[2] < 1)
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{
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throw vtkm::cont::ErrorBadValue("Bad sampling rate");
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}
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this->SampleRate = sampleRate;
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this->InputDimensions = vtkm::Id3(ptdim[0], ptdim[1], ptdim[2]);
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break;
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}
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default:
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VTKM_ASSERT(false && "Unsupported number of dimensions");
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}
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this->InputDimensionality = Dimensionality;
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// intersect VOI
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this->VOI.X.Min = vtkm::Max(vtkm::Id(0), voi.X.Min);
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this->VOI.X.Max = vtkm::Min(this->InputDimensions[0], voi.X.Max);
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this->VOI.Y.Min = vtkm::Max(vtkm::Id(0), voi.Y.Min);
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this->VOI.Y.Max = vtkm::Min(this->InputDimensions[1], voi.Y.Max);
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this->VOI.Z.Min = vtkm::Max(vtkm::Id(0), voi.Z.Min);
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this->VOI.Z.Max = vtkm::Min(this->InputDimensions[2], voi.Z.Max);
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if (!this->VOI.IsNonEmpty()) // empty VOI
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{
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return DynamicCellSetStructured();
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}
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// compute output dimensions
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this->OutputDimensions = vtkm::Id3(1);
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vtkm::Id3 voiDims = this->VOI.Dimensions();
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for (int i = 0; i < Dimensionality; ++i)
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{
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this->OutputDimensions[i] = ((voiDims[i] + this->SampleRate[i] - 1) / this->SampleRate[i]) +
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((includeBoundary && ((voiDims[i] - 1) % this->SampleRate[i])) ? 1 : 0);
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}
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this->ValidPoints = vtkm::cont::make_ArrayHandleCartesianProduct(
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MakeAxisIndexArrayPoints(this->OutputDimensions[0],
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this->VOI.X.Min,
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this->VOI.X.Max - 1,
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this->SampleRate[0],
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includeBoundary),
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MakeAxisIndexArrayPoints(this->OutputDimensions[1],
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this->VOI.Y.Min,
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this->VOI.Y.Max - 1,
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this->SampleRate[1],
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includeBoundary),
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MakeAxisIndexArrayPoints(this->OutputDimensions[2],
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this->VOI.Z.Min,
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this->VOI.Z.Max - 1,
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this->SampleRate[2],
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includeBoundary));
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this->ValidCells = vtkm::cont::make_ArrayHandleCartesianProduct(
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MakeAxisIndexArrayCells(vtkm::Max(vtkm::Id(1), this->OutputDimensions[0] - 1),
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this->VOI.X.Min,
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this->SampleRate[0]),
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MakeAxisIndexArrayCells(vtkm::Max(vtkm::Id(1), this->OutputDimensions[1] - 1),
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this->VOI.Y.Min,
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this->SampleRate[1]),
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MakeAxisIndexArrayCells(vtkm::Max(vtkm::Id(1), this->OutputDimensions[2] - 1),
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this->VOI.Z.Min,
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this->SampleRate[2]));
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return MakeCellSetStructured(this->OutputDimensions);
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}
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private:
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class CallRun
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{
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public:
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CallRun(ExtractStructured* worklet,
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const vtkm::RangeId3& voi,
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const vtkm::Id3& sampleRate,
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bool includeBoundary,
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DynamicCellSetStructured& output)
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: Worklet(worklet)
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, VOI(&voi)
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, SampleRate(&sampleRate)
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, IncludeBoundary(includeBoundary)
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, Output(&output)
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{
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}
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template <vtkm::IdComponent Dimensionality>
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void operator()(const vtkm::cont::CellSetStructured<Dimensionality>& cellset) const
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{
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*this->Output =
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this->Worklet->Run(cellset, *this->VOI, *this->SampleRate, this->IncludeBoundary);
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}
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template <typename CellSetType>
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void operator()(const CellSetType&) const
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{
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throw vtkm::cont::ErrorBadType("ExtractStructured only works with structured datasets");
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}
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private:
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ExtractStructured* Worklet;
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const vtkm::RangeId3* VOI;
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const vtkm::Id3* SampleRate;
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bool IncludeBoundary;
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DynamicCellSetStructured* Output;
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};
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public:
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template <typename CellSetList>
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DynamicCellSetStructured Run(const vtkm::cont::DynamicCellSetBase<CellSetList>& cellset,
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const vtkm::RangeId3& voi,
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const vtkm::Id3& sampleRate,
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bool includeBoundary)
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{
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DynamicCellSetStructured output;
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CallRun cr(this, voi, sampleRate, includeBoundary, output);
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vtkm::cont::CastAndCall(cellset, cr);
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return output;
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}
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private:
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class CoordinatesMapper
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{
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private:
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using UniformCoordinatesArrayHandle =
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vtkm::cont::ArrayHandleUniformPointCoordinates::Superclass;
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template <typename T, typename Storage1, typename Storage2, typename Storage3>
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using RectilinearCoordinatesArrayHandle = typename vtkm::cont::ArrayHandleCartesianProduct<
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vtkm::cont::ArrayHandle<T, Storage1>,
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vtkm::cont::ArrayHandle<T, Storage2>,
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vtkm::cont::ArrayHandle<T, Storage3>>::Superclass;
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public:
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CoordinatesMapper(const ExtractStructured* worklet,
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vtkm::cont::ArrayHandleVirtualCoordinates& result)
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: Worklet(worklet)
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, Result(&result)
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{
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}
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void operator()(const UniformCoordinatesArrayHandle& coords) const
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{
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using CoordsArray = vtkm::cont::ArrayHandleUniformPointCoordinates;
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using CoordType = CoordsArray::ValueType;
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using ValueType = CoordType::ComponentType;
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const auto& portal = coords.GetPortalConstControl();
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CoordType inOrigin = portal.GetOrigin();
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CoordType inSpacing = portal.GetSpacing();
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CoordType outOrigin = vtkm::make_Vec(
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inOrigin[0] + static_cast<ValueType>(this->Worklet->VOI.X.Min) * inSpacing[0],
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inOrigin[1] + static_cast<ValueType>(this->Worklet->VOI.Y.Min) * inSpacing[1],
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inOrigin[2] + static_cast<ValueType>(this->Worklet->VOI.Z.Min) * inSpacing[2]);
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CoordType outSpacing = inSpacing * static_cast<CoordType>(this->Worklet->SampleRate);
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auto out = CoordsArray(this->Worklet->OutputDimensions, outOrigin, outSpacing);
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*this->Result = vtkm::cont::ArrayHandleVirtualCoordinates(out);
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}
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template <typename T, typename Storage1, typename Storage2, typename Storage3>
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void operator()(
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const RectilinearCoordinatesArrayHandle<T, Storage1, Storage2, Storage3>& coords) const
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{
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vtkm::cont::ArrayHandle<T> xs, ys, zs;
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// For structured datasets, the cellsets are of different types based on
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// its dimensionality, but the coordinates are always 3 dimensional.
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// We can map the axis of the cellset to the coordinates by looking at the
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// length of a coordinate axis array.
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const AxisIndexArrayPoints* validIds[3] = {
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&this->Worklet->ValidPoints.GetStorage().GetFirstArray(),
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&this->Worklet->ValidPoints.GetStorage().GetSecondArray(),
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&this->Worklet->ValidPoints.GetStorage().GetThirdArray()
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};
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int dim = 0;
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dim += RectilinearCoordsCopy(coords.GetStorage().GetFirstArray(), *validIds[dim], xs);
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dim += RectilinearCoordsCopy(coords.GetStorage().GetSecondArray(), *validIds[dim], ys);
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dim += RectilinearCoordsCopy(coords.GetStorage().GetThirdArray(), *validIds[dim], zs);
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VTKM_ASSERT(dim == this->Worklet->InputDimensionality);
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auto out = vtkm::cont::make_ArrayHandleCartesianProduct(xs, ys, zs);
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*this->Result = vtkm::cont::ArrayHandleVirtualCoordinates(out);
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}
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template <typename T, typename Storage>
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void operator()(const vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>, Storage>& coords) const
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{
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auto out = this->Worklet->ProcessPointField(coords);
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*this->Result = vtkm::cont::ArrayHandleVirtualCoordinates(out);
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}
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private:
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template <typename T, typename Storage>
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static int RectilinearCoordsCopy(const vtkm::cont::ArrayHandle<T, Storage>& coords,
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const AxisIndexArrayPoints& valid,
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vtkm::cont::ArrayHandle<T>& dest)
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{
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if (coords.GetNumberOfValues() == 1)
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{
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dest.GetPortalControl().Set(0, coords.GetPortalConstControl().Get(0));
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return 0;
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}
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else
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{
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vtkm::cont::ArrayCopy(vtkm::cont::make_ArrayHandlePermutation(valid, coords), dest);
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return 1;
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}
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}
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const ExtractStructured* Worklet;
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vtkm::cont::ArrayHandleVirtualCoordinates* Result;
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};
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public:
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vtkm::cont::ArrayHandleVirtualCoordinates MapCoordinates(
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const vtkm::cont::CoordinateSystem& coordinates)
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{
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vtkm::cont::ArrayHandleVirtualCoordinates result;
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CoordinatesMapper mapper(this, result);
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vtkm::cont::CastAndCall(coordinates, mapper);
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return result;
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}
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private:
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template <vtkm::IdComponent Dimensionality, typename T, typename Storage>
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void MapPointField(const vtkm::cont::ArrayHandle<T, Storage>& in,
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vtkm::cont::ArrayHandle<T>& out) const
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{
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using namespace extractstructured::internal;
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auto validPointsFlat = vtkm::cont::make_ArrayHandleTransform(
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this->ValidPoints, LogicalToFlatIndex<Dimensionality>(this->InputDimensions));
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vtkm::cont::ArrayCopy(make_ArrayHandlePermutation(validPointsFlat, in), out);
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}
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template <vtkm::IdComponent Dimensionality, typename T, typename Storage>
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void MapCellField(const vtkm::cont::ArrayHandle<T, Storage>& in,
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vtkm::cont::ArrayHandle<T>& out) const
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{
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using namespace extractstructured::internal;
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auto inputCellDimensions = this->InputDimensions - vtkm::Id3(1);
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auto validCellsFlat = vtkm::cont::make_ArrayHandleTransform(
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this->ValidCells, LogicalToFlatIndex<Dimensionality>(inputCellDimensions));
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vtkm::cont::ArrayCopy(make_ArrayHandlePermutation(validCellsFlat, in), out);
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}
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public:
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template <typename T, typename Storage>
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vtkm::cont::ArrayHandle<T> ProcessPointField(
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const vtkm::cont::ArrayHandle<T, Storage>& field) const
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{
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vtkm::cont::ArrayHandle<T> result;
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switch (this->InputDimensionality)
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{
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case 1:
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this->MapPointField<1>(field, result);
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|
break;
|
|
case 2:
|
|
this->MapPointField<2>(field, result);
|
|
break;
|
|
case 3:
|
|
this->MapPointField<3>(field, result);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
template <typename T, typename Storage>
|
|
vtkm::cont::ArrayHandle<T> ProcessCellField(
|
|
const vtkm::cont::ArrayHandle<T, Storage>& field) const
|
|
{
|
|
vtkm::cont::ArrayHandle<T> result;
|
|
switch (this->InputDimensionality)
|
|
{
|
|
case 1:
|
|
this->MapCellField<1>(field, result);
|
|
break;
|
|
case 2:
|
|
this->MapCellField<2>(field, result);
|
|
break;
|
|
case 3:
|
|
this->MapCellField<3>(field, result);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
private:
|
|
vtkm::RangeId3 VOI;
|
|
vtkm::Id3 SampleRate;
|
|
|
|
int InputDimensionality;
|
|
vtkm::Id3 InputDimensions;
|
|
vtkm::Id3 OutputDimensions;
|
|
|
|
PointIndexArray ValidPoints;
|
|
CellIndexArray ValidCells;
|
|
};
|
|
}
|
|
} // namespace vtkm::worklet
|
|
|
|
#endif // vtk_m_worklet_ExtractStructured_h
|