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.
27 #ifndef _AUBIO__PRIV_H
28 #define _AUBIO__PRIV_H
30 /*********************
46 /* must be included before fftw3.h */
51 #if defined(HAVE_FFTW3) || defined(HAVE_FFTW3F)
64 #include <limits.h> // for CHAR_BIT, in C99 standard
69 #define AUBIO_UNSTABLE 1
71 #include "mathutils.h"
79 /* Memory management */
80 #define AUBIO_MALLOC(_n) malloc(_n)
81 #define AUBIO_REALLOC(_p,_n) realloc(_p,_n)
82 #define AUBIO_NEW(_t) (_t*)calloc(sizeof(_t), 1)
83 #define AUBIO_ARRAY(_t,_n) (_t*)calloc((_n)*sizeof(_t), 1)
84 #define AUBIO_MEMCPY(_dst,_src,_n) memcpy(_dst,_src,_n)
85 #define AUBIO_MEMSET(_dst,_src,_t) memset(_dst,_src,_t)
86 #define AUBIO_FREE(_p) free(_p)
90 #define AUBIO_FOPEN(_f,_m) fopen(_f,_m)
91 #define AUBIO_FCLOSE(_f) fclose(_f)
92 #define AUBIO_FREAD(_p,_s,_n,_f) fread(_p,_s,_n,_f)
93 #define AUBIO_FSEEK(_f,_n,_set) fseek(_f,_n,_set)
96 #define AUBIO_STRLEN(_s) strlen(_s)
97 #define AUBIO_STRCMP(_s,_t) strcmp(_s,_t)
98 #define AUBIO_STRNCMP(_s,_t,_n) strncmp(_s,_t,_n)
99 #define AUBIO_STRCPY(_dst,_src) strcpy(_dst,_src)
100 #define AUBIO_STRCHR(_s,_c) strchr(_s,_c)
102 #define AUBIO_STRDUP(s) strdup(s)
104 #define AUBIO_STRDUP(s) AUBIO_STRCPY(AUBIO_MALLOC(AUBIO_STRLEN(s) + 1), s)
108 /* Error reporting */
114 #ifdef HAVE_C99_VARARGS_MACROS
115 #define AUBIO_ERR(...) fprintf(stderr, "AUBIO ERROR: " __VA_ARGS__)
116 #define AUBIO_MSG(...) fprintf(stdout, __VA_ARGS__)
117 #define AUBIO_DBG(...) fprintf(stderr, __VA_ARGS__)
118 #define AUBIO_WRN(...) fprintf(stderr, "AUBIO WARNING: " __VA_ARGS__)
120 #define AUBIO_ERR(format, args...) fprintf(stderr, "AUBIO ERROR: " format , ##args)
121 #define AUBIO_MSG(format, args...) fprintf(stdout, format , ##args)
122 #define AUBIO_DBG(format, args...) fprintf(stderr, format , ##args)
123 #define AUBIO_WRN(format, args...) fprintf(stderr, "AUBIO WARNING: " format, ##args)
126 #define AUBIO_ERROR AUBIO_ERR
128 #define AUBIO_QUIT(_s) exit(_s)
129 #define AUBIO_SPRINTF sprintf
133 #define PI (3.14159265358979323846)
137 #define TWO_PI (PI*2.)
139 /* aliases to math.h functions */
140 #if !HAVE_AUBIO_DOUBLE
165 #define ROUND(x) FLOOR(x+.5)
167 /* aliases to complex.h functions */
168 #if HAVE_AUBIO_DOUBLE || !defined(HAVE_COMPLEX_H) || defined(WIN32)
169 /* mingw32 does not know about c*f functions */
171 /** complex = CEXPC(complex) */
173 /** sample = ARGC(complex) */
175 /** sample = ABSC(complex) norm */
177 /** sample = REAL(complex) */
179 /** sample = IMAG(complex) */
182 /** sample = EXPC(complex) */
184 /** complex = CEXPC(complex) */
186 /** sample = ARGC(complex) */
188 /** sample = ABSC(complex) norm */
190 /** sample = REAL(complex) */
192 /** sample = IMAG(complex) */
196 /* handy shortcuts */
197 #define DB2LIN(g) (POW(10.0,(g)*0.05f))
198 #define LIN2DB(v) (20.0*LOG10(v))
199 #define SQR(_a) (_a*_a)
201 #define MAX(a,b) ( a > b ? a : b)
202 #define MIN(a,b) ( a < b ? a : b)
204 #define ELEM_SWAP(a,b) { register smpl_t t=(a);(a)=(b);(b)=t; }
206 #define VERY_SMALL_NUMBER 2.e-42 //1.e-37
208 /** if ABS(f) < VERY_SMALL_NUMBER, returns 1, else 0 */
209 #define IS_DENORMAL(f) ABS(f) < VERY_SMALL_NUMBER
211 /** if ABS(f) < VERY_SMALL_NUMBER, returns 0., else f */
212 #define KILL_DENORMAL(f) IS_DENORMAL(f) ? 0. : f
214 /** if f > VERY_SMALL_NUMBER, returns f, else returns VERY_SMALL_NUMBER */
215 #define CEIL_DENORMAL(f) f < VERY_SMALL_NUMBER ? VERY_SMALL_NUMBER : f
217 #define SAFE_LOG10(f) LOG10(CEIL_DENORMAL(f))
218 #define SAFE_LOG(f) LOG(CEIL_DENORMAL(f))
220 /** silence unused parameter warning by adding an attribute */
221 #if defined(__GNUC__)
222 #define UNUSED __attribute__((unused))
227 #endif /* _AUBIO__PRIV_H */