root/middleware-offline/trunk/_src/eidmw/FreeImagePTEiD/Source/LibOpenJPEG/int.h @ 36

Revision 36, 3.6 KB (checked in by vsilva, 8 years ago)

FIX Xades encoding problems

Line 
1/*
2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#ifndef __INT_H
32#define __INT_H
33/**
34@file int.h
35@brief Implementation of operations on integers (INT)
36
37The functions in INT.H have for goal to realize operations on integers.
38*/
39
40/** @defgroup INT INT - Implementation of operations on integers */
41/*@{*/
42
43/** @name Exported functions (see also openjpeg.h) */
44/*@{*/
45/* ----------------------------------------------------------------------- */
46/**
47Get the minimum of two integers
48@return Returns a if a < b else b
49*/
50static INLINE int int_min(int a, int b) {
51        return a < b ? a : b;
52}
53/**
54Get the maximum of two integers
55@return Returns a if a > b else b
56*/
57static INLINE int int_max(int a, int b) {
58        return (a > b) ? a : b;
59}
60/**
61Clamp an integer inside an interval
62@return
63<ul>
64<li>Returns a if (min < a < max)
65<li>Returns max if (a > max)
66<li>Returns min if (a < min)
67</ul>
68*/
69static INLINE int int_clamp(int a, int min, int max) {
70        if (a < min)
71                return min;
72        if (a > max)
73                return max;
74        return a;
75}
76/**
77@return Get absolute value of integer
78*/
79static INLINE int int_abs(int a) {
80        return a < 0 ? -a : a;
81}
82/**
83Divide an integer and round upwards
84@return Returns a divided by b
85*/
86static INLINE int int_ceildiv(int a, int b) {
87        return (a + b - 1) / b;
88}
89/**
90Divide an integer by a power of 2 and round upwards
91@return Returns a divided by 2^b
92*/
93static INLINE int int_ceildivpow2(int a, int b) {
94        return (a + (1 << b) - 1) >> b;
95}
96/**
97Divide an integer by a power of 2 and round downwards
98@return Returns a divided by 2^b
99*/
100static INLINE int int_floordivpow2(int a, int b) {
101        return a >> b;
102}
103/**
104Get logarithm of an integer and round downwards
105@return Returns log2(a)
106*/
107static INLINE int int_floorlog2(int a) {
108        int l;
109        for (l = 0; a > 1; l++) {
110                a >>= 1;
111        }
112        return l;
113}
114/* ----------------------------------------------------------------------- */
115/*@}*/
116
117/*@}*/
118
119#endif
Note: See TracBrowser for help on using the browser.