1/*
2 *  Interval header
3 *  Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
4 *
5 *
6 *   This library is free software; you can redistribute it and/or modify
7 *   it under the terms of the GNU Lesser General Public License as
8 *   published by the Free Software Foundation; either version 2.1 of
9 *   the License, or (at your option) any later version.
10 *
11 *   This program 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 Lesser General Public License for more details.
15 *
16 *   You should have received a copy of the GNU Lesser General Public
17 *   License along with this library; if not, write to the Free Software
18 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19 *
20 */
21
22typedef struct _snd_interval snd_interval_t;
23
24#ifdef SND_INTERVAL_INLINE
25#include "interval_inline.h"
26#else
27void snd_interval_any(snd_interval_t *i);
28void snd_interval_none(snd_interval_t *i);
29int snd_interval_setinteger(snd_interval_t *i);
30int snd_interval_empty(const snd_interval_t *i);
31int snd_interval_single(const snd_interval_t *i);
32int snd_interval_value(const snd_interval_t *i);
33void snd_interval_set_value(snd_interval_t *i, unsigned int val);
34int snd_interval_min(const snd_interval_t *i);
35int snd_interval_max(const snd_interval_t *i);
36void snd_interval_set_minmax(snd_interval_t *i, unsigned int min, unsigned int max);
37int snd_interval_test(const snd_interval_t *i, unsigned int val);
38void snd_interval_copy(snd_interval_t *dst, const snd_interval_t *src);
39void snd_interval_floor(snd_interval_t *i);
40void snd_interval_unfloor(snd_interval_t *i);
41int snd_interval_always_eq(const snd_interval_t *i1, const snd_interval_t *i2);
42int snd_interval_never_eq(const snd_interval_t *i1, const snd_interval_t *i2);
43#endif
44
45/* make local functions really local */
46#define snd_interval_add	snd1_interval_add
47#define snd_interval_sub	snd1_interval_sub
48#define snd_interval_mul	snd1_interval_mul
49#define snd_interval_div	snd1_interval_div
50#define snd_interval_muldiv	snd1_interval_muldiv
51#define snd_interval_muldivk	snd1_interval_muldivk
52#define snd_interval_mulkdiv	snd1_interval_mulkdiv
53#define snd_interval_print	snd1_interval_print
54#define snd_interval_refine_min	snd1_interval_refine_min
55#define snd_interval_refine_max	snd1_interval_refine_max
56#define snd_interval_refine	snd1_interval_refine
57#define snd_interval_refine_first snd1_interval_refine_first
58#define snd_interval_refine_last snd1_interval_refine_last
59#define snd_interval_refine_set	snd1_interval_refine_set
60
61void snd_interval_add(const snd_interval_t *a, const snd_interval_t *b, snd_interval_t *c);
62void snd_interval_sub(const snd_interval_t *a, const snd_interval_t *b, snd_interval_t *c);
63void snd_interval_mul(const snd_interval_t *a, const snd_interval_t *b, snd_interval_t *c);
64void snd_interval_div(const snd_interval_t *a, const snd_interval_t *b, snd_interval_t *c);
65void snd_interval_muldiv(const snd_interval_t *a, const snd_interval_t *b,
66		     const snd_interval_t *c, snd_interval_t *d);
67void snd_interval_muldivk(const snd_interval_t *a, const snd_interval_t *b,
68		      unsigned int k, snd_interval_t *c);
69void snd_interval_mulkdiv(const snd_interval_t *a, unsigned int k,
70		      const snd_interval_t *b, snd_interval_t *c);
71void snd_interval_print(const snd_interval_t *i, snd_output_t *out);
72int snd_interval_refine_min(snd_interval_t *i, unsigned int min, int openmin);
73int snd_interval_refine_max(snd_interval_t *i, unsigned int max, int openmax);
74int snd_interval_refine(snd_interval_t *i, const snd_interval_t *v);
75int snd_interval_refine_first(snd_interval_t *i);
76int snd_interval_refine_last(snd_interval_t *i);
77int snd_interval_refine_set(snd_interval_t *i, unsigned int val);
78void boundary_sub(int a, int adir, int b, int bdir, int *c, int *cdir);
79int boundary_lt(unsigned int a, int adir, unsigned int b, int bdir);
80int boundary_nearer(int min, int mindir, int best, int bestdir, int max, int maxdir);
81