2 Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
6 aubio is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 aubio is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with aubio. If not, see <http://www.gnu.org/licenses/>.
22 * Private include file
24 * This file is for inclusion from _within_ the library only.
30 /*********************
48 /* must be included before fftw3.h */
53 #if HAVE_FFTW3 || HAVE_FFTW3F
66 #include <limits.h> // for CHAR_BIT, in C99 standard
71 #define AUBIO_UNSTABLE 1
73 #include "mathutils.h"
81 /* Memory management */
82 #define AUBIO_MALLOC(_n) malloc(_n)
83 #define AUBIO_REALLOC(_p,_n) realloc(_p,_n)
84 #define AUBIO_NEW(_t) (_t*)calloc(sizeof(_t), 1)
85 #define AUBIO_ARRAY(_t,_n) (_t*)calloc((_n)*sizeof(_t), 1)
86 #define AUBIO_MEMCPY(_dst,_src,_n) memcpy(_dst,_src,_n)
87 #define AUBIO_MEMSET(_dst,_src,_t) memset(_dst,_src,_t)
88 #define AUBIO_FREE(_p) free(_p)
92 #define AUBIO_FOPEN(_f,_m) fopen(_f,_m)
93 #define AUBIO_FCLOSE(_f) fclose(_f)
94 #define AUBIO_FREAD(_p,_s,_n,_f) fread(_p,_s,_n,_f)
95 #define AUBIO_FSEEK(_f,_n,_set) fseek(_f,_n,_set)
98 #define AUBIO_STRLEN(_s) strlen(_s)
99 #define AUBIO_STRCMP(_s,_t) strcmp(_s,_t)
100 #define AUBIO_STRNCMP(_s,_t,_n) strncmp(_s,_t,_n)
101 #define AUBIO_STRCPY(_dst,_src) strcpy(_dst,_src)
102 #define AUBIO_STRCHR(_s,_c) strchr(_s,_c)
104 #define AUBIO_STRDUP(s) strdup(s)
106 #define AUBIO_STRDUP(s) AUBIO_STRCPY(AUBIO_MALLOC(AUBIO_STRLEN(s) + 1), s)
110 /* Error reporting */
116 #ifdef HAVE_C99_VARARGS_MACROS
117 #define AUBIO_ERR(...) fprintf(stderr, "AUBIO ERROR: " __VA_ARGS__)
118 #define AUBIO_MSG(...) fprintf(stdout, __VA_ARGS__)
119 #define AUBIO_DBG(...) fprintf(stderr, __VA_ARGS__)
120 #define AUBIO_WRN(...) fprintf(stderr, "AUBIO WARNING: " __VA_ARGS__)
122 #define AUBIO_ERR(format, args...) fprintf(stderr, "AUBIO ERROR: " format , ##args)
123 #define AUBIO_MSG(format, args...) fprintf(stdout, format , ##args)
124 #define AUBIO_DBG(format, args...) fprintf(stderr, format , ##args)
125 #define AUBIO_WRN(...) fprintf(stderr, "AUBIO WARNING: " format, ##args)
128 #define AUBIO_ERROR AUBIO_ERR
130 #define AUBIO_QUIT(_s) exit(_s)
131 #define AUBIO_SPRINTF sprintf
135 #define TWO_PI (PI*2.)
137 /* aliases to math.h functions */
138 #if !HAVE_AUBIO_DOUBLE
163 #define ROUND(x) FLOOR(x+.5)
165 /* aliases to complex.h functions */
166 #if HAVE_AUBIO_DOUBLE || !defined(HAVE_COMPLEX_H) || defined(WIN32)
167 /* mingw32 does not know about c*f functions */
169 /** complex = CEXPC(complex) */
171 /** sample = ARGC(complex) */
173 /** sample = ABSC(complex) norm */
175 /** sample = REAL(complex) */
177 /** sample = IMAG(complex) */
180 /** sample = EXPC(complex) */
182 /** complex = CEXPC(complex) */
184 /** sample = ARGC(complex) */
186 /** sample = ABSC(complex) norm */
188 /** sample = REAL(complex) */
190 /** sample = IMAG(complex) */
194 /* handy shortcuts */
195 #define DB2LIN(g) (POW(10.0,(g)*0.05f))
196 #define LIN2DB(v) (20.0*LOG10(v))
197 #define SQR(_a) (_a*_a)
199 #define MAX(a,b) ( a > b ? a : b)
200 #define MIN(a,b) ( a < b ? a : b)
202 #define ELEM_SWAP(a,b) { register smpl_t t=(a);(a)=(b);(b)=t; }
204 #define VERY_SMALL_NUMBER 2.e-42 //1.e-37
206 /** if ABS(f) < VERY_SMALL_NUMBER, returns 1, else 0 */
207 #define IS_DENORMAL(f) ABS(f) < VERY_SMALL_NUMBER
209 /** if ABS(f) < VERY_SMALL_NUMBER, returns 0., else f */
210 #define KILL_DENORMAL(f) IS_DENORMAL(f) ? 0. : f
212 /** if f > VERY_SMALL_NUMBER, returns f, else returns VERY_SMALL_NUMBER */
213 #define CEIL_DENORMAL(f) f < VERY_SMALL_NUMBER ? VERY_SMALL_NUMBER : f
215 #define SAFE_LOG10(f) LOG10(CEIL_DENORMAL(f))
216 #define SAFE_LOG(f) LOG(CEIL_DENORMAL(f))
218 #define UNUSED __attribute__((unused))
220 #endif/*_AUBIO_PRIV_H*/