2 * Copyright (c) 2001-2003, David Janssens
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3 * Copyright (c) 2002-2003, Yannick Verschueren
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4 * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
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5 * Copyright (c) 2005, Hervé Drolon, FreeImage Team
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6 * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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7 * All rights reserved.
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9 * Redistribution and use in source and binary forms, with or without
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10 * modification, are permitted provided that the following conditions
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12 * 1. Redistributions of source code must retain the above copyright
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13 * notice, this list of conditions and the following disclaimer.
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14 * 2. Redistributions in binary form must reproduce the above copyright
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15 * notice, this list of conditions and the following disclaimer in the
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16 * documentation and/or other materials provided with the distribution.
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18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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28 * POSSIBILITY OF SUCH DAMAGE.
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31 #include "opj_includes.h"
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33 int int_min(int a, int b) {
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34 return a < b ? a : b;
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37 int int_max(int a, int b) {
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38 return (a > b) ? a : b;
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41 int int_clamp(int a, int min, int max) {
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49 int int_abs(int a) {
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50 return a < 0 ? -a : a;
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53 int int_ceildiv(int a, int b) {
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54 return (a + b - 1) / b;
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57 int int_ceildivpow2(int a, int b) {
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58 return (a + (1 << b) - 1) >> b;
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61 int int_floordivpow2(int a, int b) {
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65 int int_floorlog2(int a) {
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67 for (l = 0; a > 1; l++) {
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