ref: ac65a2fc00d7ebf27d53aa88d419b6dd299e4176
dir: /src/fvec.c/
/* Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org> This file is part of aubio. aubio 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 3 of the License, or (at your option) any later version. aubio 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 aubio. If not, see <http://www.gnu.org/licenses/>. */ #include "aubio_priv.h" #include "fvec.h" fvec_t * new_fvec(uint_t length) { fvec_t * s; if ((sint_t)length <= 0) { return NULL; } s = AUBIO_NEW(fvec_t); s->length = length; s->data = AUBIO_ARRAY(smpl_t, s->length); return s; } void del_fvec(fvec_t *s) { AUBIO_FREE(s->data); AUBIO_FREE(s); } void fvec_set_sample(fvec_t *s, smpl_t data, uint_t position) { s->data[position] = data; } smpl_t fvec_get_sample(const fvec_t *s, uint_t position) { return s->data[position]; } smpl_t * fvec_get_data(const fvec_t *s) { return s->data; } /* helper functions */ void fvec_print(const fvec_t *s) { uint_t j; for (j=0; j< s->length; j++) { AUBIO_MSG(AUBIO_SMPL_FMT " ", s->data[j]); } AUBIO_MSG("\n"); } void fvec_set_all (fvec_t *s, smpl_t val) { #if !defined(HAVE_ACCELERATE) && !defined(HAVE_ATLAS) uint_t j; for (j=0; j< s->length; j++) { s->data[j] = val; } #elif defined(HAVE_ATLAS) aubio_catlas_set(s->length, val, s->data, 1); #elif defined(HAVE_ACCELERATE) aubio_vDSP_vfill(&val, s->data, 1, s->length); #endif } void fvec_zeros(fvec_t *s) { #if !defined(HAVE_MEMCPY_HACKS) && !defined(HAVE_ACCELERATE) fvec_set_all (s, 0.); #else #if defined(HAVE_MEMCPY_HACKS) memset(s->data, 0, s->length * sizeof(smpl_t)); #else aubio_vDSP_vclr(s->data, 1, s->length); #endif #endif } void fvec_ones(fvec_t *s) { fvec_set_all (s, 1.); } void fvec_rev(fvec_t *s) { uint_t j; for (j=0; j< FLOOR(s->length/2); j++) { ELEM_SWAP(s->data[j], s->data[s->length-1-j]); } } void fvec_weight(fvec_t *s, const fvec_t *weight) { #ifndef HAVE_ACCELERATE uint_t j; uint_t length = MIN(s->length, weight->length); for (j=0; j< length; j++) { s->data[j] *= weight->data[j]; } #else aubio_vDSP_vmul(s->data, 1, weight->data, 1, s->data, 1, s->length); #endif /* HAVE_ACCELERATE */ } void fvec_weighted_copy(const fvec_t *in, const fvec_t *weight, fvec_t *out) { #ifndef HAVE_ACCELERATE uint_t j; uint_t length = MIN(out->length, weight->length); for (j=0; j< length; j++) { out->data[j] = in->data[j] * weight->data[j]; } #else aubio_vDSP_vmul(in->data, 1, weight->data, 1, out->data, 1, out->length); #endif /* HAVE_ACCELERATE */ } void fvec_copy(const fvec_t *s, fvec_t *t) { if (s->length != t->length) { AUBIO_ERR("trying to copy %d elements to %d elements \n", s->length, t->length); return; } #ifdef HAVE_NOOPT uint_t j; for (j=0; j< t->length; j++) { t->data[j] = s->data[j]; } #elif defined(HAVE_MEMCPY_HACKS) memcpy(t->data, s->data, t->length * sizeof(smpl_t)); #elif defined(HAVE_ATLAS) aubio_cblas_copy(s->length, s->data, 1, t->data, 1); #elif defined(HAVE_ACCELERATE) aubio_vDSP_mmov(s->data, t->data, 1, s->length, 1, 1); #endif }