vtk-m2/vtkm/worklet/contourtree_augmented/mesh_dem/IdRelabler.h

135 lines
4.8 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
// Copyright (c) 2018, The Regents of the University of California, through
// Lawrence Berkeley National Laboratory (subject to receipt of any required approvals
// from the U.S. Dept. of Energy). All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// (1) Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// (2) Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// (3) Neither the name of the University of California, Lawrence Berkeley National
// Laboratory, U.S. Dept. of Energy nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
// OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
//
//=============================================================================
//
// This code is an extension of the algorithm presented in the paper:
// Parallel Peak Pruning for Scalable SMP Contour Tree Computation.
// Hamish Carr, Gunther Weber, Christopher Sewell, and James Ahrens.
// Proceedings of the IEEE Symposium on Large Data Analysis and Visualization
// (LDAV), October 2016, Baltimore, Maryland.
//
// The PPP2 algorithm and software were jointly developed by
// Hamish Carr (University of Leeds), Gunther H. Weber (LBNL), and
// Oliver Ruebel (LBNL)
//==============================================================================
#ifndef vtk_m_worklet_contourtree_ppp2_contourtree_mesh_inc_id_relabler_h
#define vtk_m_worklet_contourtree_ppp2_contourtree_mesh_inc_id_relabler_h
#include <vtkm/cont/ArrayHandle.h>
#include <vtkm/worklet/contourtree_augmented/Types.h>
namespace vtkm
{
namespace worklet
{
namespace contourtree_augmented
{
namespace mesh_dem
{
class IdRelabler
{
public:
VTKM_EXEC_CONT
IdRelabler()
: InputStartRow(0)
, InputStartCol(0)
, InputStartSlice(0)
, InputNumRows(1)
, InputNumCols(1)
, OutputNumRows(1)
, OutputNumCol(1)
{
}
VTKM_EXEC_CONT
IdRelabler(vtkm::Id iSR,
vtkm::Id iSC,
vtkm::Id iSS,
vtkm::Id iNR,
vtkm::Id iNC,
vtkm::Id oNR,
vtkm::Id oNC)
: InputStartRow(iSR)
, InputStartCol(iSC)
, InputStartSlice(iSS)
, InputNumRows(iNR)
, InputNumCols(iNC)
, OutputNumRows(oNR)
, OutputNumCol(oNC)
{
}
VTKM_EXEC_CONT
vtkm::Id operator()(vtkm::Id v) const
{
vtkm::Id r = InputStartRow + ((v % (InputNumRows * InputNumCols)) / InputNumCols);
vtkm::Id c = InputStartCol + (v % InputNumCols);
vtkm::Id s = InputStartSlice + v / (InputNumRows * InputNumCols);
return (s * OutputNumRows + r) * OutputNumCol + c;
}
private:
vtkm::Id InputStartRow, InputStartCol, InputStartSlice;
vtkm::Id InputNumRows, InputNumCols;
vtkm::Id OutputNumRows, OutputNumCol;
};
} // namespace mesh_dem
} // namespace contourtree_augmented
} // namespace worklet
} // namespace vtkm
#endif