furnace/extern/fftw/rdft/simd/common/genus.c

61 lines
2.0 KiB
C

/*
* Copyright (c) 2003, 2007-14 Matteo Frigo
* Copyright (c) 2003, 2007-14 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "rdft/codelet-rdft.h"
#include SIMD_HEADER
#define EXTERN_CONST(t, x) extern const t x; const t x
static int hc2cbv_okp(const R *Rp, const R *Ip, const R *Rm, const R *Im,
INT rs, INT mb, INT me, INT ms,
const planner *plnr)
{
return (1
&& !NO_SIMDP(plnr)
&& SIMD_STRIDE_OK(rs)
&& SIMD_VSTRIDE_OK(ms)
&& ((me - mb) % VL) == 0
&& ((mb - 1) % VL) == 0 /* twiddle factors alignment */
&& ALIGNED(Rp)
&& ALIGNED(Rm)
&& Ip == Rp + 1
&& Im == Rm + 1);
}
EXTERN_CONST(hc2c_genus, XSIMD(rdft_hc2cbv_genus)) = { hc2cbv_okp, HC2R, VL };
static int hc2cfv_okp(const R *Rp, const R *Ip, const R *Rm, const R *Im,
INT rs, INT mb, INT me, INT ms,
const planner *plnr)
{
return (1
&& !NO_SIMDP(plnr)
&& SIMD_STRIDE_OK(rs)
&& SIMD_VSTRIDE_OK(ms)
&& ((me - mb) % VL) == 0
&& ((mb - 1) % VL) == 0 /* twiddle factors alignment */
&& ALIGNED(Rp)
&& ALIGNED(Rm)
&& Ip == Rp + 1
&& Im == Rm + 1);
}
EXTERN_CONST(hc2c_genus, XSIMD(rdft_hc2cfv_genus)) = { hc2cfv_okp, R2HC, VL };