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Diffstat (limited to 'src/3rdparty/jasper/src/libjasper/include/jasper/jas_fix.h')
| -rw-r--r-- | src/3rdparty/jasper/src/libjasper/include/jasper/jas_fix.h | 358 |
1 files changed, 0 insertions, 358 deletions
diff --git a/src/3rdparty/jasper/src/libjasper/include/jasper/jas_fix.h b/src/3rdparty/jasper/src/libjasper/include/jasper/jas_fix.h deleted file mode 100644 index 8081f20..0000000 --- a/src/3rdparty/jasper/src/libjasper/include/jasper/jas_fix.h +++ /dev/null @@ -1,358 +0,0 @@ -/* - * Copyright (c) 1999-2000 Image Power, Inc. and the University of - * British Columbia. - * Copyright (c) 2001-2002 Michael David Adams. - * All rights reserved. - */ - -/* __START_OF_JASPER_LICENSE__ - * - * JasPer License Version 2.0 - * - * Copyright (c) 2001-2006 Michael David Adams - * Copyright (c) 1999-2000 Image Power, Inc. - * Copyright (c) 1999-2000 The University of British Columbia - * - * All rights reserved. - * - * Permission is hereby granted, free of charge, to any person (the - * "User") obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, and/or sell copies of the Software, and to permit - * persons to whom the Software is furnished to do so, subject to the - * following conditions: - * - * 1. The above copyright notices and this permission notice (which - * includes the disclaimer below) shall be included in all copies or - * substantial portions of the Software. - * - * 2. The name of a copyright holder shall not be used to endorse or - * promote products derived from the Software without specific prior - * written permission. - * - * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS - * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER - * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS - * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING - * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO - * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL - * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING - * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, - * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION - * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE - * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE - * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. - * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS - * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL - * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS - * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE - * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE - * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL - * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, - * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL - * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH - * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, - * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH - * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY - * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. - * - * __END_OF_JASPER_LICENSE__ - */ - -/* - * Fixed-Point Number Class - * - * $Id$ - */ - -#ifndef JAS_FIX_H -#define JAS_FIX_H - -/******************************************************************************\ -* Includes. -\******************************************************************************/ - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> - -#include <jasper/jas_config.h> -#include <jasper/jas_types.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/******************************************************************************\ -* Constants. -\******************************************************************************/ - -/* The representation of the value zero. */ -#define JAS_FIX_ZERO(fix_t, fracbits) \ - JAS_CAST(fix_t, 0) - -/* The representation of the value one. */ -#define JAS_FIX_ONE(fix_t, fracbits) \ - (JAS_CAST(fix_t, 1) << (fracbits)) - -/* The representation of the value one half. */ -#define JAS_FIX_HALF(fix_t, fracbits) \ - (JAS_CAST(fix_t, 1) << ((fracbits) - 1)) - -/******************************************************************************\ -* Conversion operations. -\******************************************************************************/ - -/* Convert an int to a fixed-point number. */ -#define JAS_INTTOFIX(fix_t, fracbits, x) \ - JAS_CAST(fix_t, (x) << (fracbits)) - -/* Convert a fixed-point number to an int. */ -#define JAS_FIXTOINT(fix_t, fracbits, x) \ - JAS_CAST(int, (x) >> (fracbits)) - -/* Convert a fixed-point number to a double. */ -#define JAS_FIXTODBL(fix_t, fracbits, x) \ - (JAS_CAST(double, x) / (JAS_CAST(fix_t, 1) << (fracbits))) - -/* Convert a double to a fixed-point number. */ -#define JAS_DBLTOFIX(fix_t, fracbits, x) \ - JAS_CAST(fix_t, ((x) * JAS_CAST(double, JAS_CAST(fix_t, 1) << (fracbits)))) - -/******************************************************************************\ -* Basic arithmetic operations. -* All other arithmetic operations are synthesized from these basic operations. -* There are three macros for each type of arithmetic operation. -* One macro always performs overflow/underflow checking, one never performs -* overflow/underflow checking, and one is generic with its behavior -* depending on compile-time flags. -* Only the generic macros should be invoked directly by application code. -\******************************************************************************/ - -/* Calculate the sum of two fixed-point numbers. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_ADD JAS_FIX_ADD_FAST -#else -#define JAS_FIX_ADD JAS_FIX_ADD_OFLOW -#endif - -/* Calculate the sum of two fixed-point numbers without overflow checking. */ -#define JAS_FIX_ADD_FAST(fix_t, fracbits, x, y) ((x) + (y)) - -/* Calculate the sum of two fixed-point numbers with overflow checking. */ -#define JAS_FIX_ADD_OFLOW(fix_t, fracbits, x, y) \ - ((x) >= 0) ? \ - (((y) >= 0) ? ((x) + (y) >= 0 || JAS_FIX_OFLOW(), (x) + (y)) : \ - ((x) + (y))) : \ - (((y) >= 0) ? ((x) + (y)) : ((x) + (y) < 0 || JAS_FIX_OFLOW(), \ - (x) + (y))) - -/* Calculate the product of two fixed-point numbers. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_MUL JAS_FIX_MUL_FAST -#else -#define JAS_FIX_MUL JAS_FIX_MUL_OFLOW -#endif - -/* Calculate the product of two fixed-point numbers without overflow - checking. */ -#define JAS_FIX_MUL_FAST(fix_t, fracbits, bigfix_t, x, y) \ - JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y)) >> \ - (fracbits)) - -/* Calculate the product of two fixed-point numbers with overflow - checking. */ -#define JAS_FIX_MUL_OFLOW(fix_t, fracbits, bigfix_t, x, y) \ - ((JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y) >> (fracbits)) == \ - JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y) >> \ - (fracbits))) ? \ - JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y) >> \ - (fracbits))) : JAS_FIX_OFLOW()) - -/* Calculate the product of a fixed-point number and an int. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_MULBYINT JAS_FIX_MULBYINT_FAST -#else -#define JAS_FIX_MULBYINT JAS_FIX_MULBYINT_OFLOW -#endif - -/* Calculate the product of a fixed-point number and an int without overflow - checking. */ -#define JAS_FIX_MULBYINT_FAST(fix_t, fracbits, x, y) \ - JAS_CAST(fix_t, ((x) * (y))) - -/* Calculate the product of a fixed-point number and an int with overflow - checking. */ -#define JAS_FIX_MULBYINT_OFLOW(fix_t, fracbits, x, y) \ - JAS_FIX_MULBYINT_FAST(fix_t, fracbits, x, y) - -/* Calculate the quotient of two fixed-point numbers. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_DIV JAS_FIX_DIV_FAST -#else -#define JAS_FIX_DIV JAS_FIX_DIV_UFLOW -#endif - -/* Calculate the quotient of two fixed-point numbers without underflow - checking. */ -#define JAS_FIX_DIV_FAST(fix_t, fracbits, bigfix_t, x, y) \ - JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) << (fracbits)) / (y)) - -/* Calculate the quotient of two fixed-point numbers with underflow - checking. */ -#define JAS_FIX_DIV_UFLOW(fix_t, fracbits, bigfix_t, x, y) \ - JAS_FIX_DIV_FAST(fix_t, fracbits, bigfix_t, x, y) - -/* Negate a fixed-point number. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_NEG JAS_FIX_NEG_FAST -#else -#define JAS_FIX_NEG JAS_FIX_NEG_OFLOW -#endif - -/* Negate a fixed-point number without overflow checking. */ -#define JAS_FIX_NEG_FAST(fix_t, fracbits, x) \ - (-(x)) - -/* Negate a fixed-point number with overflow checking. */ -/* Yes, overflow is actually possible for two's complement representations, - although highly unlikely to occur. */ -#define JAS_FIX_NEG_OFLOW(fix_t, fracbits, x) \ - (((x) < 0) ? (-(x) > 0 || JAS_FIX_OFLOW(), -(x)) : (-(x))) - -/* Perform an arithmetic shift left of a fixed-point number. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_ASL JAS_FIX_ASL_FAST -#else -#define JAS_FIX_ASL JAS_FIX_ASL_OFLOW -#endif - -/* Perform an arithmetic shift left of a fixed-point number without overflow - checking. */ -#define JAS_FIX_ASL_FAST(fix_t, fracbits, x, n) \ - ((x) << (n)) - -/* Perform an arithmetic shift left of a fixed-point number with overflow - checking. */ -#define JAS_FIX_ASL_OFLOW(fix_t, fracbits, x, n) \ - ((((x) << (n)) >> (n)) == (x) || JAS_FIX_OFLOW(), (x) << (n)) - -/* Perform an arithmetic shift right of a fixed-point number. */ -#if !defined(DEBUG_OVERFLOW) -#define JAS_FIX_ASR JAS_FIX_ASR_FAST -#else -#define JAS_FIX_ASR JAS_FIX_ASR_UFLOW -#endif - -/* Perform an arithmetic shift right of a fixed-point number without underflow - checking. */ -#define JAS_FIX_ASR_FAST(fix_t, fracbits, x, n) \ - ((x) >> (n)) - -/* Perform an arithmetic shift right of a fixed-point number with underflow - checking. */ -#define JAS_FIX_ASR_UFLOW(fix_t, fracbits, x, n) \ - JAS_FIX_ASR_FAST(fix_t, fracbits, x, n) - -/******************************************************************************\ -* Other basic arithmetic operations. -\******************************************************************************/ - -/* Calculate the difference between two fixed-point numbers. */ -#define JAS_FIX_SUB(fix_t, fracbits, x, y) \ - JAS_FIX_ADD(fix_t, fracbits, x, JAS_FIX_NEG(fix_t, fracbits, y)) - -/* Add one fixed-point number to another. */ -#define JAS_FIX_PLUSEQ(fix_t, fracbits, x, y) \ - ((x) = JAS_FIX_ADD(fix_t, fracbits, x, y)) - -/* Subtract one fixed-point number from another. */ -#define JAS_FIX_MINUSEQ(fix_t, fracbits, x, y) \ - ((x) = JAS_FIX_SUB(fix_t, fracbits, x, y)) - -/* Multiply one fixed-point number by another. */ -#define JAS_FIX_MULEQ(fix_t, fracbits, bigfix_t, x, y) \ - ((x) = JAS_FIX_MUL(fix_t, fracbits, bigfix_t, x, y)) - -/******************************************************************************\ -* Miscellaneous operations. -\******************************************************************************/ - -/* Calculate the absolute value of a fixed-point number. */ -#define JAS_FIX_ABS(fix_t, fracbits, x) \ - (((x) >= 0) ? (x) : (JAS_FIX_NEG(fix_t, fracbits, x))) - -/* Is a fixed-point number an integer? */ -#define JAS_FIX_ISINT(fix_t, fracbits, x) \ - (JAS_FIX_FLOOR(fix_t, fracbits, x) == (x)) - -/* Get the sign of a fixed-point number. */ -#define JAS_FIX_SGN(fix_t, fracbits, x) \ - ((x) >= 0 ? 1 : (-1)) - -/******************************************************************************\ -* Relational operations. -\******************************************************************************/ - -/* Compare two fixed-point numbers. */ -#define JAS_FIX_CMP(fix_t, fracbits, x, y) \ - ((x) > (y) ? 1 : (((x) == (y)) ? 0 : (-1))) - -/* Less than. */ -#define JAS_FIX_LT(fix_t, fracbits, x, y) \ - ((x) < (y)) - -/* Less than or equal. */ -#define JAS_FIX_LTE(fix_t, fracbits, x, y) \ - ((x) <= (y)) - -/* Greater than. */ -#define JAS_FIX_GT(fix_t, fracbits, x, y) \ - ((x) > (y)) - -/* Greater than or equal. */ -#define JAS_FIX_GTE(fix_t, fracbits, x, y) \ - ((x) >= (y)) - -/******************************************************************************\ -* Rounding functions. -\******************************************************************************/ - -/* Round a fixed-point number to the nearest integer. */ -#define JAS_FIX_ROUND(fix_t, fracbits, x) \ - (((x) < 0) ? JAS_FIX_FLOOR(fix_t, fracbits, JAS_FIX_ADD(fix_t, fracbits, \ - (x), JAS_FIX_HALF(fix_t, fracbits))) : \ - JAS_FIX_NEG(fix_t, fracbits, JAS_FIX_FLOOR(fix_t, fracbits, \ - JAS_FIX_ADD(fix_t, fracbits, (-(x)), JAS_FIX_HALF(fix_t, fracbits))))) - -/* Round a fixed-point number to the nearest integer in the direction of - negative infinity (i.e., the floor function). */ -#define JAS_FIX_FLOOR(fix_t, fracbits, x) \ - ((x) & (~((JAS_CAST(fix_t, 1) << (fracbits)) - 1))) - -/* Round a fixed-point number to the nearest integer in the direction - of zero. */ -#define JAS_FIX_TRUNC(fix_t, fracbits, x) \ - (((x) >= 0) ? JAS_FIX_FLOOR(fix_t, fracbits, x) : \ - JAS_FIX_CEIL(fix_t, fracbits, x)) - -/******************************************************************************\ -* The below macros are for internal library use only. Do not invoke them -* directly in application code. -\******************************************************************************/ - -/* Handle overflow. */ -#define JAS_FIX_OFLOW() \ - jas_eprintf("overflow error: file %s, line %d\n", __FILE__, __LINE__) - -/* Handle underflow. */ -#define JAS_FIX_UFLOW() \ - jas_eprintf("underflow error: file %s, line %d\n", __FILE__, __LINE__) - -#ifdef __cplusplus -} -#endif - -#endif |