mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +00:00
311618a15f
This will make VTK-m warning level match the one used by VTK. This commit also resolves the first round of warnings that W4 exposes.
280 lines
8.8 KiB
C++
280 lines
8.8 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 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 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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#include <vtkm/Assert.h>
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#include <vtkm/cont/DeviceAdapterAlgorithm.h>
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#include <vtkm/cont/TryExecute.h>
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#include <vtkm/exec/CellEdge.h>
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#include <vtkm/filter/ExternalFaces.h>
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#include <vtkm/rendering/CanvasRayTracer.h>
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#include <vtkm/rendering/MapperRayTracer.h>
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#include <vtkm/rendering/MapperWireframer.h>
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#include <vtkm/rendering/Wireframer.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/ScatterCounting.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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namespace vtkm
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{
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namespace rendering
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{
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namespace
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{
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#if defined(VTKM_MSVC)
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#pragma warning(push)
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#pragma warning(disable : 4127) //conditional expression is constant
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#endif
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struct EdgesCounter : public vtkm::worklet::WorkletMapPointToCell
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{
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typedef void ControlSignature(CellSetIn cellSet, FieldOutCell<> numEdges);
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typedef _2 ExecutionSignature(CellShape shape, PointCount numPoints);
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using InputDomain = _1;
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template <typename CellShapeTag>
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VTKM_EXEC vtkm::IdComponent operator()(CellShapeTag shape, vtkm::IdComponent numPoints) const
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{
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//TODO: Remove the if/then with templates.
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if (shape.Id == vtkm::CELL_SHAPE_LINE)
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{
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return 1;
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}
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else
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{
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return vtkm::exec::CellEdgeNumberOfEdges(numPoints, shape, *this);
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}
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}
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}; // struct EdgesCounter
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struct EdgesExtracter : public vtkm::worklet::WorkletMapPointToCell
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{
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typedef void ControlSignature(CellSetIn cellSet, FieldOutCell<> edgeIndices);
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typedef void ExecutionSignature(CellShape, PointIndices, VisitIndex, _2);
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using InputDomain = _1;
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using ScatterType = vtkm::worklet::ScatterCounting;
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VTKM_CONT
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template <typename CountArrayType, typename DeviceTag>
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EdgesExtracter(const CountArrayType& counts, DeviceTag device)
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: Scatter(counts, device)
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{
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}
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VTKM_CONT ScatterType GetScatter() const { return this->Scatter; }
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template <typename CellShapeTag, typename PointIndexVecType, typename EdgeIndexVecType>
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VTKM_EXEC void operator()(CellShapeTag shape,
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const PointIndexVecType& pointIndices,
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vtkm::IdComponent visitIndex,
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EdgeIndexVecType& edgeIndices) const
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{
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//TODO: Remove the if/then with templates.
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vtkm::Id p1, p2;
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if (shape.Id == vtkm::CELL_SHAPE_LINE)
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{
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p1 = pointIndices[0];
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p2 = pointIndices[1];
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}
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else
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{
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vtkm::Vec<vtkm::IdComponent, 2> localEdgeIndices = vtkm::exec::CellEdgeLocalIndices(
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pointIndices.GetNumberOfComponents(), visitIndex, shape, *this);
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p1 = pointIndices[localEdgeIndices[0]];
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p2 = pointIndices[localEdgeIndices[1]];
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}
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// These indices need to be arranged in a definite order, as they will later be sorted to
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// detect duplicates
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edgeIndices[0] = p1 < p2 ? p1 : p2;
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edgeIndices[1] = p1 < p2 ? p2 : p1;
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}
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private:
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ScatterType Scatter;
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}; // struct EdgesExtracter
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#if defined(VTKM_MSVC)
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#pragma warning(pop)
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#endif
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struct ExtractUniqueEdges
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{
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vtkm::cont::DynamicCellSet CellSet;
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Id, 2>> EdgeIndices;
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VTKM_CONT
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ExtractUniqueEdges(const vtkm::cont::DynamicCellSet& cellSet)
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: CellSet(cellSet)
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{
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}
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template <typename DeviceTag>
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VTKM_CONT bool operator()(DeviceTag)
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{
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VTKM_IS_DEVICE_ADAPTER_TAG(DeviceTag);
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vtkm::cont::ArrayHandle<vtkm::IdComponent> counts;
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vtkm::worklet::DispatcherMapTopology<EdgesCounter, DeviceTag>().Invoke(CellSet, counts);
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EdgesExtracter extractWorklet(counts, DeviceTag());
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vtkm::worklet::DispatcherMapTopology<EdgesExtracter, DeviceTag> extractDispatcher(
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extractWorklet);
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extractDispatcher.Invoke(CellSet, EdgeIndices);
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vtkm::cont::DeviceAdapterAlgorithm<DeviceTag>::template Sort<vtkm::Id2>(EdgeIndices);
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vtkm::cont::DeviceAdapterAlgorithm<DeviceTag>::template Unique<vtkm::Id2>(EdgeIndices);
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return true;
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}
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}; // struct ExtractUniqueEdges
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} // namespace
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struct MapperWireframer::InternalsType
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{
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InternalsType()
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: InternalsType(nullptr, false, false)
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{
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}
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InternalsType(vtkm::rendering::Canvas* canvas, bool showInternalZones, bool isOverlay)
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: Canvas(canvas)
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, ShowInternalZones(showInternalZones)
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, IsOverlay(isOverlay)
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{
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}
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vtkm::rendering::Canvas* Canvas;
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bool ShowInternalZones;
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bool IsOverlay;
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}; // struct MapperWireframer::InternalsType
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MapperWireframer::MapperWireframer()
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: Internals(new InternalsType(nullptr, false, false))
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{
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}
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MapperWireframer::~MapperWireframer()
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{
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}
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vtkm::rendering::Canvas* MapperWireframer::GetCanvas() const
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{
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return this->Internals->Canvas;
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}
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void MapperWireframer::SetCanvas(vtkm::rendering::Canvas* canvas)
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{
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this->Internals->Canvas = canvas;
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}
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bool MapperWireframer::GetShowInternalZones() const
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{
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return this->Internals->ShowInternalZones;
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}
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void MapperWireframer::SetShowInternalZones(bool showInternalZones)
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{
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this->Internals->ShowInternalZones = showInternalZones;
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}
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bool MapperWireframer::GetIsOverlay() const
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{
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return this->Internals->IsOverlay;
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}
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void MapperWireframer::SetIsOverlay(bool isOverlay)
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{
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this->Internals->IsOverlay = isOverlay;
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}
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void MapperWireframer::StartScene()
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{
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// Nothing needs to be done.
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}
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void MapperWireframer::EndScene()
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{
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// Nothing needs to be done.
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}
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void MapperWireframer::RenderCells(const vtkm::cont::DynamicCellSet& inCellSet,
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const vtkm::cont::CoordinateSystem& coords,
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const vtkm::cont::Field& inScalarField,
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const vtkm::rendering::ColorTable& colorTable,
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const vtkm::rendering::Camera& camera,
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const vtkm::Range& scalarRange)
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{
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vtkm::cont::DynamicCellSet cellSet = inCellSet;
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vtkm::cont::Field field = inScalarField;
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if (!(this->Internals->ShowInternalZones))
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{
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// If internal zones are to be hidden, the number of edges processed can be reduced by
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// running the external faces filter on the input cell set.
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vtkm::cont::DataSet dataSet;
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dataSet.AddCoordinateSystem(coords);
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dataSet.AddCellSet(inCellSet);
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vtkm::filter::ExternalFaces externalFaces;
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externalFaces.SetCompactPoints(false);
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externalFaces.SetPassPolyData(true);
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vtkm::filter::Result result = externalFaces.Execute(dataSet);
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externalFaces.MapFieldOntoOutput(result, inScalarField);
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cellSet = result.GetDataSet().GetCellSet();
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field = result.GetDataSet().GetField(0);
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}
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// Extract unique edges from the cell set.
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ExtractUniqueEdges extracter(cellSet);
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vtkm::cont::TryExecute(extracter);
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Id, 2>> edgeIndices = extracter.EdgeIndices;
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Wireframer renderer(
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this->Internals->Canvas, this->Internals->ShowInternalZones, this->Internals->IsOverlay);
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// Render the cell set using a raytracer, on a separate canvas, and use the generated depth
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// buffer, which represents the solid mesh, to avoid drawing on the internal zones
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if (!(this->Internals->ShowInternalZones) && !(this->Internals->IsOverlay))
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{
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CanvasRayTracer canvas(this->Internals->Canvas->GetWidth(),
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this->Internals->Canvas->GetHeight());
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canvas.SetBackgroundColor(vtkm::rendering::Color::white);
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canvas.Initialize();
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canvas.Activate();
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canvas.Clear();
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MapperRayTracer raytracer;
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raytracer.SetCanvas(&canvas);
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raytracer.SetActiveColorTable(colorTable);
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raytracer.RenderCells(cellSet, coords, field, colorTable, camera, scalarRange);
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renderer.SetSolidDepthBuffer(canvas.GetDepthBuffer());
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}
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else if (this->Internals->IsOverlay)
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{
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renderer.SetSolidDepthBuffer(this->Internals->Canvas->GetDepthBuffer());
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}
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renderer.SetCamera(camera);
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renderer.SetColorMap(this->ColorMap);
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renderer.SetData(coords, edgeIndices, field, scalarRange);
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renderer.Render();
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}
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vtkm::rendering::Mapper* MapperWireframer::NewCopy() const
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{
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return new vtkm::rendering::MapperWireframer(*this);
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}
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}
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} // namespace vtkm::rendering
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