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Diffstat (limited to 'third_party/libopenjpeg20/opj_intmath.h')
| -rw-r--r-- | third_party/libopenjpeg20/opj_intmath.h | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/third_party/libopenjpeg20/opj_intmath.h b/third_party/libopenjpeg20/opj_intmath.h deleted file mode 100644 index 4e299469de..0000000000 --- a/third_party/libopenjpeg20/opj_intmath.h +++ /dev/null @@ -1,198 +0,0 @@ -/* - * The copyright in this software is being made available under the 2-clauses - * BSD License, included below. This software may be subject to other third - * party and contributor rights, including patent rights, and no such rights - * are granted under this license. - * - * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium - * Copyright (c) 2002-2014, Professor Benoit Macq - * Copyright (c) 2001-2003, David Janssens - * Copyright (c) 2002-2003, Yannick Verschueren - * Copyright (c) 2003-2007, Francois-Olivier Devaux - * Copyright (c) 2003-2014, Antonin Descampe - * Copyright (c) 2005, Herve Drolon, FreeImage Team - * 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 -/** -@file opj_intmath.h -@brief Implementation of operations on integers (INT) - -The functions in OPJ_INTMATH.H have for goal to realize operations on integers. -*/ - -/** @defgroup OPJ_INTMATH OPJ_INTMATH - Implementation of operations on integers */ -/*@{*/ - -/** @name Exported functions (see also openjpeg.h) */ -/*@{*/ -/* ----------------------------------------------------------------------- */ -/** -Get the minimum of two integers -@return Returns a if a < b else b -*/ -static INLINE OPJ_INT32 opj_int_min(OPJ_INT32 a, OPJ_INT32 b) { - return a < b ? a : b; -} - -/** -Get the minimum of two integers -@return Returns a if a < b else b -*/ -static INLINE OPJ_UINT32 opj_uint_min(OPJ_UINT32 a, OPJ_UINT32 b) { - return a < b ? a : b; -} - -/** -Get the maximum of two integers -@return Returns a if a > b else b -*/ -static INLINE OPJ_INT32 opj_int_max(OPJ_INT32 a, OPJ_INT32 b) { - return (a > b) ? a : b; -} - -/** -Get the maximum of two integers -@return Returns a if a > b else b -*/ -static INLINE OPJ_UINT32 opj_uint_max(OPJ_UINT32 a, OPJ_UINT32 b) { - return (a > b) ? a : b; -} - -/** - Get the saturated sum of two unsigned integers - @return Returns saturated sum of a+b - */ -static INLINE OPJ_UINT32 opj_uint_adds(OPJ_UINT32 a, OPJ_UINT32 b) { - OPJ_UINT64 sum = (OPJ_UINT64)a + (OPJ_UINT64)b; - return -(OPJ_UINT32)(sum >> 32) | (OPJ_UINT32)sum; -} - -/** -Clamp an integer inside an interval -@return -<ul> -<li>Returns a if (min < a < max) -<li>Returns max if (a > max) -<li>Returns min if (a < min) -</ul> -*/ -static INLINE OPJ_INT32 opj_int_clamp(OPJ_INT32 a, OPJ_INT32 min, OPJ_INT32 max) { - if (a < min) - return min; - if (a > max) - return max; - return a; -} -/** -@return Get absolute value of integer -*/ -static INLINE OPJ_INT32 opj_int_abs(OPJ_INT32 a) { - return a < 0 ? -a : a; -} -/** -Divide an integer and round upwards -@return Returns a divided by b -*/ -static INLINE OPJ_INT32 opj_int_ceildiv(OPJ_INT32 a, OPJ_INT32 b) { - assert(b); - return (a + b - 1) / b; -} - -/** -Divide an integer and round upwards -@return Returns a divided by b -*/ -static INLINE OPJ_UINT32 opj_uint_ceildiv(OPJ_UINT32 a, OPJ_UINT32 b) { - assert(b); - return (a + b - 1) / b; -} - -/** -Divide an integer by a power of 2 and round upwards -@return Returns a divided by 2^b -*/ -static INLINE OPJ_INT32 opj_int_ceildivpow2(OPJ_INT32 a, OPJ_INT32 b) { - return (OPJ_INT32)((a + (OPJ_INT64)(1 << b) - 1) >> b); -} -/** -Divide an integer by a power of 2 and round downwards -@return Returns a divided by 2^b -*/ -static INLINE OPJ_INT32 opj_int_floordivpow2(OPJ_INT32 a, OPJ_INT32 b) { - return a >> b; -} -/** -Get logarithm of an integer and round downwards -@return Returns log2(a) -*/ -static INLINE OPJ_INT32 opj_int_floorlog2(OPJ_INT32 a) { - OPJ_INT32 l; - for (l = 0; a > 1; l++) { - a >>= 1; - } - return l; -} -/** -Get logarithm of an integer and round downwards -@return Returns log2(a) -*/ -static INLINE OPJ_UINT32 opj_uint_floorlog2(OPJ_UINT32 a) { - OPJ_UINT32 l; - for (l = 0; a > 1; ++l) - { - a >>= 1; - } - return l; -} - -/** -Multiply two fixed-precision rational numbers. -@param a -@param b -@return Returns a * b -*/ -static INLINE OPJ_INT32 opj_int_fix_mul(OPJ_INT32 a, OPJ_INT32 b) { - OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ; - temp += 4096; - assert((temp >> 13) <= (OPJ_INT64)0x7FFFFFFF); - assert((temp >> 13) >= (-(OPJ_INT64)0x7FFFFFFF - (OPJ_INT64)1)); - return (OPJ_INT32) (temp >> 13); -} - -static INLINE OPJ_INT32 opj_int_fix_mul_t1(OPJ_INT32 a, OPJ_INT32 b) { - OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ; - temp += 4096; - assert((temp >> (13 + 11 - T1_NMSEDEC_FRACBITS)) <= (OPJ_INT64)0x7FFFFFFF); - assert((temp >> (13 + 11 - T1_NMSEDEC_FRACBITS)) >= (-(OPJ_INT64)0x7FFFFFFF - (OPJ_INT64)1)); - return (OPJ_INT32) (temp >> (13 + 11 - T1_NMSEDEC_FRACBITS)) ; -} - -/* ----------------------------------------------------------------------- */ -/*@}*/ - -/*@}*/ - -#endif |