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https://gitlab.kitware.com/vtk/vtk-m
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f4e4dc9ebe
A previous change used the Copy method of DeviceAdapterAlgorithm to perform the actual copy in the CopyInto method. This works fine, except that it uses the default device adapter, and the default device adapter may need to copy the data to the device just to copy it to another array. Instead, use the serial device adapter, which is guaranteed to only perform one copy of the data.
248 lines
7.6 KiB
C++
248 lines
7.6 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 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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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_cont_DataSetBuilderRectilinear_h
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#define vtk_m_cont_DataSetBuilderRectilinear_h
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/ArrayPortalToIterators.h>
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#include <vtkm/cont/Assert.h>
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/DeviceAdapterSerial.h>
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namespace vtkm {
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namespace cont {
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class DataSetBuilderRectilinear
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{
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template<typename T, typename U>
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VTKM_CONT_EXPORT
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static
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void CopyInto(const std::vector<T>& input,
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vtkm::cont::ArrayHandle<U>& output )
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{
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DataSetBuilderRectilinear::CopyInto(
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vtkm::cont::make_ArrayHandle(input), output);
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}
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template<typename T, typename U>
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VTKM_CONT_EXPORT
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static
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void CopyInto(const vtkm::cont::ArrayHandle<T>& input,
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vtkm::cont::ArrayHandle<U>& output )
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{
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typedef vtkm::cont::DeviceAdapterAlgorithm<
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vtkm::cont::DeviceAdapterTagSerial> Algorithm;
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Algorithm::Copy(input, output);
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}
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template<typename T, typename U>
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VTKM_CONT_EXPORT
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static
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void CopyInto(const T* input, vtkm::Id len,
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vtkm::cont::ArrayHandle<U>& output )
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{
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DataSetBuilderRectilinear::CopyInto(
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vtkm::cont::make_ArrayHandle(input, len), output);
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}
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public:
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VTKM_CONT_EXPORT
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DataSetBuilderRectilinear() {}
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//2D grids.
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(vtkm::Id nx, vtkm::Id ny,
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T *xvals, T *yvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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T zvals = 0;
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return DataSetBuilderRectilinear::Create(
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2, nx,ny, 1, xvals, yvals, &zvals, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(int dim, vtkm::Id nx, vtkm::Id ny, vtkm::Id nz,
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T *xvals, T *yvals, T *zvals,
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std::string coordNm, std::string cellNm)
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{
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VTKM_ASSERT_CONT(nx>1 && ny>1 &&
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((dim==2 && nz==1)||(dim==3 && nz>=1)));
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
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DataSetBuilderRectilinear::CopyInto(xvals,nx,Xc);
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DataSetBuilderRectilinear::CopyInto(yvals,ny,Yc);
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DataSetBuilderRectilinear::CopyInto(zvals,nz,Zc);
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return DataSetBuilderRectilinear::BuildDataSet(
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dim, Xc,Yc,Zc, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const std::vector<T> &xvals, const std::vector<T> &yvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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std::vector<T> zvals(1,0);
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return DataSetBuilderRectilinear::BuildDataSet(
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2, xvals,yvals,zvals, coordNm,cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const vtkm::cont::ArrayHandle<T> &xvals,
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const vtkm::cont::ArrayHandle<T> &yvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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VTKM_ASSERT_CONT(xvals.GetNumberOfValues()>1 && yvals.GetNumberOfValues()>1);
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vtkm::cont::ArrayHandle<T> zvals;
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zvals.Allocate(1);
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zvals.GetPortalControl().Set(0,0.0);
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return DataSetBuilderRectilinear::BuildDataSet(
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2, xvals,yvals,zvals, coordNm, cellNm);
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}
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//3D grids.
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(vtkm::Id nx, vtkm::Id ny, vtkm::Id nz,
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T *xvals, T *yvals, T *zvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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return DataSetBuilderRectilinear::Create(
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3, nx,ny,nz, xvals, yvals, zvals, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const std::vector<T> &xvals,
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const std::vector<T> &yvals,
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const std::vector<T> &zvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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return DataSetBuilderRectilinear::BuildDataSet(
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3, xvals, yvals, zvals, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const vtkm::cont::ArrayHandle<T> &xvals,
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const vtkm::cont::ArrayHandle<T> &yvals,
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const vtkm::cont::ArrayHandle<T> &zvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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VTKM_ASSERT_CONT(xvals.GetNumberOfValues()>1 &&
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yvals.GetNumberOfValues()>1 &&
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zvals.GetNumberOfValues()>1);
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return DataSetBuilderRectilinear::BuildDataSet(
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3, xvals,yvals,zvals, coordNm, cellNm);
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}
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private:
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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BuildDataSet(int dim,
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const std::vector<T> &xvals,
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const std::vector<T> &yvals,
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const std::vector<T> &zvals,
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std::string coordNm, std::string cellNm)
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{
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VTKM_ASSERT_CONT(xvals.size()>1 && yvals.size()>1 &&
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((dim==2 && zvals.size()==1)||(dim==3 && zvals.size()>=1)));
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
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DataSetBuilderRectilinear::CopyInto(xvals, Xc);
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DataSetBuilderRectilinear::CopyInto(yvals, Yc);
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DataSetBuilderRectilinear::CopyInto(zvals, Zc);
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return DataSetBuilderRectilinear::BuildDataSet(
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dim, Xc,Yc,Zc, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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BuildDataSet(int dim,
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const vtkm::cont::ArrayHandle<T> &X,
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const vtkm::cont::ArrayHandle<T> &Y,
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const vtkm::cont::ArrayHandle<T> &Z,
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std::string coordNm, std::string cellNm)
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{
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vtkm::cont::DataSet dataSet;
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//Convert all coordinates to floatDefault.
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vtkm::cont::ArrayHandleCartesianProduct<
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vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
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vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> > coords;
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
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DataSetBuilderRectilinear::CopyInto(X, Xc);
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DataSetBuilderRectilinear::CopyInto(Y, Yc);
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DataSetBuilderRectilinear::CopyInto(Z, Zc);
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coords = vtkm::cont::make_ArrayHandleCartesianProduct(Xc,Yc,Zc);
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vtkm::cont::CoordinateSystem cs(coordNm, 1, coords);
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dataSet.AddCoordinateSystem(cs);
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if (dim == 2)
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{
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vtkm::cont::CellSetStructured<2> cellSet(cellNm);
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cellSet.SetPointDimensions(vtkm::make_Vec(Xc.GetNumberOfValues(),
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Yc.GetNumberOfValues()));
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dataSet.AddCellSet(cellSet);
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}
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else
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{
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vtkm::cont::CellSetStructured<3> cellSet(cellNm);
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cellSet.SetPointDimensions(vtkm::make_Vec(Xc.GetNumberOfValues(),
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Yc.GetNumberOfValues(),
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Zc.GetNumberOfValues()));
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dataSet.AddCellSet(cellSet);
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}
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return dataSet;
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}
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};
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} // namespace cont
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} // namespace vtkm
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#endif //vtk_m_cont_DataSetBuilderRectilinear_h
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