view Lib/fftw-3.2.1/dft/dftw-directsq.c @ 1:e86e9c111b29

Updates stuff that potentially fixes the memory leak and also makes it work on Windows and Linux (Need to test). Still have to fix fftw include for linux in Jucer.

/*
 * Copyright (c) 2003, 2007-8 Matteo Frigo
 * Copyright (c) 2003, 2007-8 Massachusetts Institute of Technology
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#include "ct.h"

typedef struct {
     ct_solver super;
     const ct_desc *desc;
     kdftwsq k;
} S;

typedef struct {
     plan_dftw super;
     kdftwsq k;
     INT r;
     stride rs, vs;
     INT m, ms, v, mb, me;
     twid *td;
     const S *slv;
} P;


static void apply(const plan *ego_, R *rio, R *iio)
{
     const P *ego = (const P *) ego_;
     INT mb = ego->mb, ms = ego->ms;
     ego->k(rio + mb*ms, iio + mb*ms, ego->td->W, ego->rs, ego->vs,
	    mb, ego->me, ms);
}

static void awake(plan *ego_, enum wakefulness wakefulness)
{
     P *ego = (P *) ego_;

     X(twiddle_awake)(wakefulness, &ego->td, ego->slv->desc->tw,
		      ego->r * ego->m, ego->r, ego->m);
}

static void destroy(plan *ego_)
{
     P *ego = (P *) ego_;
     X(stride_destroy)(ego->rs);
     X(stride_destroy)(ego->vs);
}

static void print(const plan *ego_, printer *p)
{
     const P *ego = (const P *) ego_;
     const S *slv = ego->slv;
     const ct_desc *e = slv->desc;

     p->print(p, "(dftw-directsq-%D/%D%v \"%s\")",
	      ego->r, X(twiddle_length)(ego->r, e->tw), ego->v, e->nam);
}

static int applicable(const S *ego,
		      INT r, INT irs, INT ors,
		      INT m, INT ms,
		      INT v, INT ivs, INT ovs,
		      INT mb, INT me,
		      R *rio, R *iio,
		      const planner *plnr)
{
     const ct_desc *e = ego->desc;
     UNUSED(v);

     return (
	  1
	  && r == e->radix

	  /* transpose r, v */
	  && r == v
	  && irs == ovs
	  && ivs == ors

	  /* check for alignment/vector length restrictions */
	  && e->genus->okp(e, rio, iio, irs, ivs, m, mb, me, ms, plnr)

	  );
}

static plan *mkcldw(const ct_solver *ego_,
		    INT r, INT irs, INT ors,
		    INT m, INT ms,
		    INT v, INT ivs, INT ovs,
		    INT mstart, INT mcount,
		    R *rio, R *iio,
		    planner *plnr)
{
     const S *ego = (const S *) ego_;
     P *pln;
     const ct_desc *e = ego->desc;

     static const plan_adt padt = {
	  0, awake, print, destroy
     };

     A(mstart >= 0 && mstart + mcount <= m);
     if (!applicable(ego,
		     r, irs, ors, m, ms, v, ivs, ovs, mstart, mstart + mcount,
		     rio, iio, plnr))
          return (plan *)0;

     pln = MKPLAN_DFTW(P, &padt, apply);

     pln->k = ego->k;
     pln->rs = X(mkstride)(r, irs);
     pln->vs = X(mkstride)(v, ivs);
     pln->td = 0;
     pln->r = r;
     pln->m = m;
     pln->ms = ms;
     pln->v = v;
     pln->mb = mstart;
     pln->me = mstart + mcount;
     pln->slv = ego;

     X(ops_zero)(&pln->super.super.ops);
     X(ops_madd2)(mcount/e->genus->vl, &e->ops, &pln->super.super.ops);

     return &(pln->super.super);
}

static void regone(planner *plnr, kdftwsq codelet,
		   const ct_desc *desc, int dec)
{
     S *slv = (S *)X(mksolver_ct)(sizeof(S), desc->radix, dec, mkcldw, 0);
     slv->k = codelet;
     slv->desc = desc;
     REGISTER_SOLVER(plnr, &(slv->super.super));
     if (X(mksolver_ct_hook)) {
	  slv = (S *)X(mksolver_ct_hook)(sizeof(S), desc->radix, dec,
					 mkcldw, 0);
	  slv->k = codelet;
	  slv->desc = desc;
	  REGISTER_SOLVER(plnr, &(slv->super.super));
     }
}

void X(regsolver_ct_directwsq)(planner *plnr, kdftwsq codelet,
			       const ct_desc *desc, int dec)
{
     regone(plnr, codelet, desc, dec+TRANSPOSE);
}