X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2Fgdcmopenjpeg%2Flibopenjpeg%2Fint.h;fp=src%2Fgdcmopenjpeg%2Flibopenjpeg%2Fint.h;h=a1b590dd98a65ac4819b8348acd621ba9df19703;hb=7452f3039ff4dd2574fcbf3343b530a2f20f9623;hp=0000000000000000000000000000000000000000;hpb=6ee3a1426ecb98787e154fe572581e97efb962cd;p=gdcm.git diff --git a/src/gdcmopenjpeg/libopenjpeg/int.h b/src/gdcmopenjpeg/libopenjpeg/int.h new file mode 100644 index 00000000..a1b590dd --- /dev/null +++ b/src/gdcmopenjpeg/libopenjpeg/int.h @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2001-2002, David Janssens + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __INT_H +#define __INT_H + +/* + * Get the minimum of two integers. + * + * returns a if a < b else b + */ +int int_min(int a, int b); + +/* + * Get the maximum of two integers. + * + * returns a if a > b else b + */ +int int_max(int a, int b); + +/* + * Clamp an integer inside an interval. + * + * return a if (min < a < max) + * return max if (a > max) + * return min if (a < min) + */ +int int_clamp(int a, int min, int max); + +/* + * Get absolute value of integer. + */ +int int_abs(int a); + +/* + * Divide an integer and round upwards. + * + * a divided by b + */ +int int_ceildiv(int a, int b); + +/* + * Divide an integer by a power of 2 and round upwards. + * + * a divided by 2^b + */ +int int_ceildivpow2(int a, int b); + +/* + * Divide an integer by a power of 2 and round downwards. + * + * a divided by 2^b + */ +int int_floordivpow2(int a, int b); + +/* + * Get logarithm of an integer and round downwards. + * + * log2(a) + */ +int int_floorlog2(int a); + +#endif