mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
115 lines
3.7 KiB
C++
115 lines
3.7 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/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/CellLocatorRectilinearGrid.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/exec/CellLocatorRectilinearGrid.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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CellLocatorRectilinearGrid::CellLocatorRectilinearGrid() = default;
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CellLocatorRectilinearGrid::~CellLocatorRectilinearGrid() = default;
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using Structured2DType = vtkm::cont::CellSetStructured<2>;
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using Structured3DType = vtkm::cont::CellSetStructured<3>;
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using AxisHandle = vtkm::cont::ArrayHandle<vtkm::FloatDefault>;
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using RectilinearType = vtkm::cont::ArrayHandleCartesianProduct<AxisHandle, AxisHandle, AxisHandle>;
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void CellLocatorRectilinearGrid::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<RectilinearType>())
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throw vtkm::cont::ErrorBadType("Coordinates are not rectilinear type.");
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if (cellSet.IsSameType(Structured2DType()))
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{
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this->Is3D = false;
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vtkm::Vec<vtkm::Id, 2> celldims =
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cellSet.Cast<Structured2DType>().GetSchedulingRange(vtkm::TopologyElementTagCell());
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this->PlaneSize = celldims[0] * celldims[1];
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this->RowSize = celldims[0];
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}
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else if (cellSet.IsSameType(Structured3DType()))
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{
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this->Is3D = true;
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vtkm::Vec<vtkm::Id, 3> celldims =
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cellSet.Cast<Structured3DType>().GetSchedulingRange(vtkm::TopologyElementTagCell());
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this->PlaneSize = celldims[0] * celldims[1];
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this->RowSize = celldims[0];
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}
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else
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{
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throw vtkm::cont::ErrorBadType("Cells are not 2D or 3D structured type.");
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}
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}
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namespace
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{
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template <vtkm::IdComponent dimensions>
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struct CellLocatorRectilinearGridPrepareForExecutionFunctor
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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::CellLocatorRectilinearGrid<DeviceAdapter, dimensions>;
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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* CellLocatorRectilinearGrid::PrepareForExecution(
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vtkm::cont::DeviceAdapterId device) const
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{
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bool success = false;
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if (this->Is3D)
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{
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success = vtkm::cont::TryExecuteOnDevice(
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device,
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CellLocatorRectilinearGridPrepareForExecutionFunctor<3>(),
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this->ExecutionObjectHandle,
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this->PlaneSize,
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this->RowSize,
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this->GetCellSet().template Cast<Structured3DType>(),
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this->GetCoordinates().GetData().template Cast<RectilinearType>());
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}
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else
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{
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success = vtkm::cont::TryExecuteOnDevice(
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device,
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CellLocatorRectilinearGridPrepareForExecutionFunctor<2>(),
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this->ExecutionObjectHandle,
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this->PlaneSize,
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this->RowSize,
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this->GetCellSet().template Cast<Structured2DType>(),
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this->GetCoordinates().GetData().template Cast<RectilinearType>());
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}
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if (!success)
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{
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throwFailedRuntimeDeviceTransfer("CellLocatorRectilinearGrid", 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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