/* This file is part of the Palabos library.
 *
 * The Palabos softare is developed since 2011 by FlowKit-Numeca Group Sarl
 * (Switzerland) and the University of Geneva (Switzerland), which jointly
 * own the IP rights for most of the code base. Since October 2019, the
 * Palabos project is maintained by the University of Geneva and accepts
 * source code contributions from the community.
 * 
 * Contact:
 * Jonas Latt
 * Computer Science Department
 * University of Geneva
 * 7 Route de Drize
 * 1227 Carouge, Switzerland
 * jonas.latt@unige.ch
 *
 * The most recent release of Palabos can be downloaded at 
 * <https://palabos.unige.ch/>
 *
 * The library Palabos is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * The library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/** \file
 * 3D specialization of latticeTemplates functions.
 */

#ifndef LATTICE_TEMPLATES_3D_H
#define LATTICE_TEMPLATES_3D_H

#include "core/globalDefs.h"
#include "latticeBoltzmann/nearestNeighborLattices3D.h"

namespace plb {

template<typename T>
struct latticeTemplates<T, descriptors::D3Q19Descriptor> {

static void swapAndStreamCell (
      Cell<T,descriptors::D3Q19Descriptor> ***grid,
      plint iX, plint iY, plint iZ, plint nX, plint nY, plint nZ, plint iPop, T& fTmp )
{
    fTmp                     = grid[iX][iY][iZ][iPop];
    grid[iX][iY][iZ][iPop]   = grid[iX][iY][iZ][iPop+9];
    grid[iX][iY][iZ][iPop+9] = grid[nX][nY][nZ][iPop];
    grid[nX][nY][nZ][iPop]   = fTmp;
}

static void swapAndStream3D(Cell<T,descriptors::D3Q19Descriptor> ***grid,
                            plint iX, plint iY, plint iZ)
{
    T fTmp;
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY,   iZ,   1, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY-1, iZ,   2, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY  , iZ-1, 3, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY-1, iZ,   4, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY+1, iZ,   5, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY  , iZ-1, 6, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY  , iZ+1, 7, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX  , iY-1, iZ-1, 8, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX  , iY-1, iZ+1, 9, fTmp);
}

};

template<typename T>
struct latticeTemplates<T, descriptors::ForcedD3Q19Descriptor> {

static void swapAndStreamCell (
      Cell<T,descriptors::ForcedD3Q19Descriptor> ***grid,
      plint iX, plint iY, plint iZ, plint nX, plint nY, plint nZ, plint iPop, T& fTmp )
{
    fTmp                     = grid[iX][iY][iZ][iPop];
    grid[iX][iY][iZ][iPop]   = grid[iX][iY][iZ][iPop+9];
    grid[iX][iY][iZ][iPop+9] = grid[nX][nY][nZ][iPop];
    grid[nX][nY][nZ][iPop]   = fTmp;
}

static void swapAndStream3D(Cell<T,descriptors::ForcedD3Q19Descriptor> ***grid,
                            plint iX, plint iY, plint iZ)
{
    T fTmp;
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY,   iZ,   1, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY-1, iZ,   2, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY  , iZ-1, 3, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY-1, iZ,   4, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY+1, iZ,   5, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY  , iZ-1, 6, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY  , iZ+1, 7, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX  , iY-1, iZ-1, 8, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX  , iY-1, iZ+1, 9, fTmp);
}

};

template<typename T>
struct latticeTemplates<T, descriptors::D3Q15Descriptor> {

static void swapAndStreamCell (
      Cell<T,descriptors::D3Q15Descriptor> ***grid,
      plint iX, plint iY, plint iZ, plint nX, plint nY, plint nZ, plint iPop, T& fTmp )
{
    fTmp                     = grid[iX][iY][iZ][iPop];
    grid[iX][iY][iZ][iPop]   = grid[iX][iY][iZ][iPop+7];
    grid[iX][iY][iZ][iPop+7] = grid[nX][nY][nZ][iPop];
    grid[nX][nY][nZ][iPop]   = fTmp;
}

static void swapAndStream3D(Cell<T,descriptors::D3Q15Descriptor> ***grid,
                            plint iX, plint iY, plint iZ)
{
    T fTmp;
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY,   iZ,   1, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY-1, iZ,   2, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY  , iZ-1, 3, fTmp);

    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY-1, iZ-1, 4, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY-1, iZ+1, 5, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY+1, iZ-1, 6, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY+1, iZ+1, 7, fTmp);
}

};

template<typename T>
struct latticeTemplates<T, descriptors::ForcedD3Q15Descriptor> {

static void swapAndStreamCell (
      Cell<T,descriptors::ForcedD3Q15Descriptor> ***grid,
      plint iX, plint iY, plint iZ, plint nX, plint nY, plint nZ, plint iPop, T& fTmp )
{
    fTmp                     = grid[iX][iY][iZ][iPop];
    grid[iX][iY][iZ][iPop]   = grid[iX][iY][iZ][iPop+7];
    grid[iX][iY][iZ][iPop+7] = grid[nX][nY][nZ][iPop];
    grid[nX][nY][nZ][iPop]   = fTmp;
}

static void swapAndStream3D(Cell<T,descriptors::ForcedD3Q15Descriptor> ***grid,
                            plint iX, plint iY, plint iZ)
{
    T fTmp;
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY,   iZ,   1, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY-1, iZ,   2, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX,   iY  , iZ-1, 3, fTmp);

    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY-1, iZ-1, 4, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY-1, iZ+1, 5, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY+1, iZ-1, 6, fTmp);
    swapAndStreamCell(grid, iX, iY, iZ, iX-1, iY+1, iZ+1, 7, fTmp);
}

};

}  // namespace plb

#endif

