[c7860af] | 1 | /* |
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| 2 | Copyright (C) 2009 Paul Brossier <piem@aubio.org> |
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| 3 | |
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| 4 | This file is part of aubio. |
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| 5 | |
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| 6 | aubio is free software: you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation, either version 3 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |
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| 11 | aubio is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with aubio. If not, see <http://www.gnu.org/licenses/>. |
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| 18 | |
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| 19 | */ |
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| 20 | |
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| 21 | #include "aubio_priv.h" |
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| 22 | #include "fmat.h" |
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| 23 | |
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[4ed0ed1] | 24 | fmat_t * new_fmat (uint_t height, uint_t length) { |
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[c21acb9] | 25 | fmat_t * s; |
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| 26 | uint_t i,j; |
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[767990e] | 27 | if ((sint_t)length <= 0 || (sint_t)height <= 0 ) { |
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| 28 | return NULL; |
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| 29 | } |
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[c21acb9] | 30 | s = AUBIO_NEW(fmat_t); |
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[c7860af] | 31 | s->height = height; |
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| 32 | s->length = length; |
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| 33 | s->data = AUBIO_ARRAY(smpl_t*,s->height); |
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| 34 | for (i=0; i< s->height; i++) { |
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| 35 | s->data[i] = AUBIO_ARRAY(smpl_t, s->length); |
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| 36 | for (j=0; j< s->length; j++) { |
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| 37 | s->data[i][j]=0.; |
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| 38 | } |
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| 39 | } |
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| 40 | return s; |
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| 41 | } |
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| 42 | |
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| 43 | void del_fmat (fmat_t *s) { |
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| 44 | uint_t i; |
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| 45 | for (i=0; i<s->height; i++) { |
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| 46 | AUBIO_FREE(s->data[i]); |
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| 47 | } |
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| 48 | AUBIO_FREE(s->data); |
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| 49 | AUBIO_FREE(s); |
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| 50 | } |
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| 51 | |
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[1ece4f8] | 52 | void fmat_set_sample(fmat_t *s, smpl_t data, uint_t channel, uint_t position) { |
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[c7860af] | 53 | s->data[channel][position] = data; |
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| 54 | } |
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[1ece4f8] | 55 | |
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| 56 | smpl_t fmat_get_sample(fmat_t *s, uint_t channel, uint_t position) { |
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[c7860af] | 57 | return s->data[channel][position]; |
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| 58 | } |
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[1ece4f8] | 59 | |
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[3cd9fdd] | 60 | void fmat_get_channel(fmat_t *s, uint_t channel, fvec_t *output) { |
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| 61 | output->data = s->data[channel]; |
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| 62 | output->length = s->length; |
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| 63 | return; |
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[c7860af] | 64 | } |
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| 65 | |
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[1ece4f8] | 66 | smpl_t * fmat_get_channel_data(fmat_t *s, uint_t channel) { |
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| 67 | return s->data[channel]; |
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| 68 | } |
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| 69 | |
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[c7860af] | 70 | smpl_t ** fmat_get_data(fmat_t *s) { |
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| 71 | return s->data; |
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| 72 | } |
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| 73 | |
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| 74 | /* helper functions */ |
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| 75 | |
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| 76 | void fmat_print(fmat_t *s) { |
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| 77 | uint_t i,j; |
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| 78 | for (i=0; i< s->height; i++) { |
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| 79 | for (j=0; j< s->length; j++) { |
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| 80 | AUBIO_MSG(AUBIO_SMPL_FMT " ", s->data[i][j]); |
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| 81 | } |
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| 82 | AUBIO_MSG("\n"); |
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| 83 | } |
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| 84 | } |
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| 85 | |
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| 86 | void fmat_set(fmat_t *s, smpl_t val) { |
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| 87 | uint_t i,j; |
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| 88 | for (i=0; i< s->height; i++) { |
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| 89 | for (j=0; j< s->length; j++) { |
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| 90 | s->data[i][j] = val; |
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| 91 | } |
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| 92 | } |
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| 93 | } |
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| 94 | |
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| 95 | void fmat_zeros(fmat_t *s) { |
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[923a7a8] | 96 | #if HAVE_MEMCPY_HACKS |
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[c666a18] | 97 | uint_t i; |
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| 98 | for (i=0; i< s->height; i++) { |
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| 99 | memset(s->data[i], 0, s->length * sizeof(smpl_t)); |
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| 100 | } |
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[923a7a8] | 101 | #else |
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[c7860af] | 102 | fmat_set(s, 0.); |
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[923a7a8] | 103 | #endif |
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[c7860af] | 104 | } |
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| 105 | |
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| 106 | void fmat_ones(fmat_t *s) { |
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| 107 | fmat_set(s, 1.); |
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| 108 | } |
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| 109 | |
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| 110 | void fmat_rev(fmat_t *s) { |
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| 111 | uint_t i,j; |
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| 112 | for (i=0; i< s->height; i++) { |
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| 113 | for (j=0; j< FLOOR(s->length/2); j++) { |
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| 114 | ELEM_SWAP(s->data[i][j], s->data[i][s->length-1-j]); |
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| 115 | } |
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| 116 | } |
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| 117 | } |
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| 118 | |
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| 119 | void fmat_weight(fmat_t *s, fmat_t *weight) { |
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| 120 | uint_t i,j; |
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| 121 | uint_t length = MIN(s->length, weight->length); |
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| 122 | for (i=0; i< s->height; i++) { |
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| 123 | for (j=0; j< length; j++) { |
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| 124 | s->data[i][j] *= weight->data[0][j]; |
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| 125 | } |
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| 126 | } |
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| 127 | } |
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| 128 | |
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| 129 | void fmat_copy(fmat_t *s, fmat_t *t) { |
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[c21acb9] | 130 | uint_t i; |
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| 131 | #if !HAVE_MEMCPY_HACKS |
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[bc6c1a7] | 132 | uint_t j; |
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[c21acb9] | 133 | #endif |
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[c7860af] | 134 | if (s->height != t->height) { |
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[923a7a8] | 135 | AUBIO_ERR("trying to copy %d rows to %d rows \n", |
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[c7860af] | 136 | s->height, t->height); |
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[923a7a8] | 137 | return; |
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[c7860af] | 138 | } |
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| 139 | if (s->length != t->length) { |
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[923a7a8] | 140 | AUBIO_ERR("trying to copy %d columns to %d columns\n", |
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[c7860af] | 141 | s->length, t->length); |
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[923a7a8] | 142 | return; |
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[c7860af] | 143 | } |
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[923a7a8] | 144 | #if HAVE_MEMCPY_HACKS |
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[83d2948] | 145 | for (i=0; i< s->height; i++) { |
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| 146 | memcpy(t->data[i], s->data[i], t->length * sizeof(smpl_t)); |
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| 147 | } |
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[923a7a8] | 148 | #else |
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| 149 | for (i=0; i< t->height; i++) { |
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| 150 | for (j=0; j< t->length; j++) { |
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[c7860af] | 151 | t->data[i][j] = s->data[i][j]; |
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| 152 | } |
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| 153 | } |
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[923a7a8] | 154 | #endif |
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[c7860af] | 155 | } |
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| 156 | |
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[a7348ca5] | 157 | void fmat_vecmul(fmat_t *s, fvec_t *scale, fvec_t *output) { |
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| 158 | uint_t k; |
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[240517e] | 159 | #if 0 |
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[a7348ca5] | 160 | assert(s->height == output->length); |
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| 161 | assert(s->length == scale->length); |
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[240517e] | 162 | #endif |
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[a7348ca5] | 163 | #if !defined(HAVE_ACCELERATE) && !defined(HAVE_ATLAS) |
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| 164 | uint_t j; |
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| 165 | fvec_zeros(output); |
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| 166 | for (j = 0; j < s->length; j++) { |
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| 167 | for (k = 0; k < s->height; k++) { |
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| 168 | output->data[k] += scale->data[j] |
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| 169 | * s->data[k][j]; |
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| 170 | } |
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| 171 | } |
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| 172 | #elif defined(HAVE_ATLAS) |
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| 173 | for (k = 0; k < s->height; k++) { |
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| 174 | output->data[k] = aubio_cblas_dot( s->length, scale->data, 1, s->data[k], 1); |
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| 175 | } |
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| 176 | #elif defined(HAVE_ACCELERATE) |
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| 177 | #if 0 |
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| 178 | // seems slower and less precise (and dangerous?) |
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| 179 | vDSP_mmul (s->data[0], 1, scale->data, 1, output->data, 1, s->height, 1, s->length); |
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| 180 | #else |
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| 181 | for (k = 0; k < s->height; k++) { |
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| 182 | aubio_vDSP_dotpr( scale->data, 1, s->data[k], 1, &(output->data[k]), s->length); |
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| 183 | } |
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| 184 | #endif |
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| 185 | #endif |
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| 186 | } |
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