89 lines
3.3 KiB
C++
89 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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//
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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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#include <vtkm/cont/Algorithm.h>
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#include <vtkm/cont/ArrayHandleUniformPointCoordinates.h>
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#include <vtkm/cont/CellLocatorUniformGrid.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/exec/CellLocatorUniformGrid.h>
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namespace vtkm
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{
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namespace cont
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{
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CellLocatorUniformGrid::CellLocatorUniformGrid() = default;
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CellLocatorUniformGrid::~CellLocatorUniformGrid() = default;
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using UniformType = vtkm::cont::ArrayHandleUniformPointCoordinates;
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using StructuredType = vtkm::cont::CellSetStructured<3>;
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void CellLocatorUniformGrid::Build()
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{
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vtkm::cont::CoordinateSystem coords = this->GetCoordinates();
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vtkm::cont::DynamicCellSet cellSet = this->GetCellSet();
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if (!coords.GetData().IsType<UniformType>())
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throw vtkm::cont::ErrorBadType("Coordinate system is not uniform type");
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if (!cellSet.IsSameType(StructuredType()))
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throw vtkm::cont::ErrorBadType("Cell set is not 3D structured type");
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this->Bounds = coords.GetBounds();
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this->CellDims =
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cellSet.Cast<StructuredType>().GetSchedulingRange(vtkm::TopologyElementTagCell());
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this->RangeTransform[0] = static_cast<vtkm::FloatDefault>(this->CellDims[0]) /
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static_cast<vtkm::FloatDefault>(this->Bounds.X.Length());
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this->RangeTransform[1] = static_cast<vtkm::FloatDefault>(this->CellDims[1]) /
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static_cast<vtkm::FloatDefault>(this->Bounds.Y.Length());
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this->RangeTransform[2] = static_cast<vtkm::FloatDefault>(this->CellDims[2]) /
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static_cast<vtkm::FloatDefault>(this->Bounds.Z.Length());
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}
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namespace
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{
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struct CellLocatorUniformGridPrepareForExecutionFunctor
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{
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template <typename DeviceAdapter, typename... Args>
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VTKM_CONT bool operator()(DeviceAdapter,
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vtkm::cont::VirtualObjectHandle<vtkm::exec::CellLocator>& execLocator,
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Args&&... args) const
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{
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using ExecutionType = vtkm::exec::CellLocatorUniformGrid<DeviceAdapter>;
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ExecutionType* execObject = new ExecutionType(std::forward<Args>(args)..., DeviceAdapter());
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execLocator.Reset(execObject);
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return true;
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}
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};
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}
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const vtkm::exec::CellLocator* CellLocatorUniformGrid::PrepareForExecution(
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vtkm::cont::DeviceAdapterId device) const
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{
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const bool success =
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vtkm::cont::TryExecuteOnDevice(device,
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CellLocatorUniformGridPrepareForExecutionFunctor(),
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this->ExecutionObjectHandle,
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this->Bounds,
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this->RangeTransform,
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this->CellDims,
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this->GetCellSet().template Cast<StructuredType>(),
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this->GetCoordinates().GetData());
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if (!success)
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{
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throwFailedRuntimeDeviceTransfer("CellLocatorUniformGrid", device);
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}
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return this->ExecutionObjectHandle.PrepareForExecution(device);
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}
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} //namespace cont
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} //namespace vtkm
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