87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* Copyright (c) 2003, 2007-14 Matteo Frigo
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* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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/* plans for vrank -infty DFTs (nothing to do) */
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#include "dft/dft.h"
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static void apply(const plan *ego_, R *ri, R *ii, R *ro, R *io)
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{
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UNUSED(ego_);
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UNUSED(ri);
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UNUSED(ii);
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UNUSED(ro);
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UNUSED(io);
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}
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static int applicable(const solver *ego_, const problem *p_)
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{
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const problem_dft *p = (const problem_dft *) p_;
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UNUSED(ego_);
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return 0
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/* case 1 : -infty vector rank */
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|| (!FINITE_RNK(p->vecsz->rnk))
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/* case 2 : rank-0 in-place dft */
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|| (1
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&& p->sz->rnk == 0
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&& FINITE_RNK(p->vecsz->rnk)
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&& p->ro == p->ri
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&& X(tensor_inplace_strides)(p->vecsz)
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);
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}
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static void print(const plan *ego, printer *p)
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{
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UNUSED(ego);
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p->print(p, "(dft-nop)");
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}
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static plan *mkplan(const solver *ego, const problem *p, planner *plnr)
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{
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static const plan_adt padt = {
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X(dft_solve), X(null_awake), print, X(plan_null_destroy)
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};
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plan_dft *pln;
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UNUSED(plnr);
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if (!applicable(ego, p))
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return (plan *) 0;
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pln = MKPLAN_DFT(plan_dft, &padt, apply);
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X(ops_zero)(&pln->super.ops);
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return &(pln->super);
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}
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static solver *mksolver(void)
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{
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static const solver_adt sadt = { PROBLEM_DFT, mkplan, 0 };
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return MKSOLVER(solver, &sadt);
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}
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void X(dft_nop_register)(planner *p)
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{
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REGISTER_SOLVER(p, mksolver());
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}
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