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/*

 * 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 Software License

 *

 * IMAGE POWER JPEG-2000 PUBLIC LICENSE

 * ************************************

 *

 * GRANT:

 *

 * Permission is hereby granted, free of charge, to any person (the "User")

 * obtaining a copy of this software and associated documentation, to deal

 * in the JasPer Software without restriction, including without limitation

 * the right to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the JasPer Software (in source and binary forms),

 * and to permit persons to whom the JasPer Software is furnished to do so,

 * provided further that the License Conditions below are met.

 *

 * License Conditions

 * ******************

 *

 * A.  Redistributions of source code must retain the above copyright notice,

 * and this list of conditions, and the following disclaimer.

 *

 * B.  Redistributions in binary form must reproduce the above copyright

 * notice, and this list of conditions, and the following disclaimer in

 * the documentation and/or other materials provided with the distribution.

 *

 * C.  Neither the name of Image Power, Inc. nor any other contributor

 * (including, but not limited to, the University of British Columbia and

 * Michael David Adams) may be used to endorse or promote products derived

 * from this software without specific prior written permission.

 *

 * D.  User agrees that it shall not commence any action against Image Power,

 * Inc., the University of British Columbia, Michael David Adams, or any

 * other contributors (collectively "Licensors") for infringement of any

 * intellectual property rights ("IPR") held by the User in respect of any

 * technology that User owns or has a right to license or sublicense and

 * which is an element required in order to claim compliance with ISO/IEC

 * 15444-1 (i.e., JPEG-2000 Part 1).  "IPR" means all intellectual property

 * rights worldwide arising under statutory or common law, and whether

 * or not perfected, including, without limitation, all (i) patents and

 * patent applications owned or licensable by User; (ii) rights associated

 * with works of authorship including copyrights, copyright applications,

 * copyright registrations, mask work rights, mask work applications,

 * mask work registrations; (iii) rights relating to the protection of

 * trade secrets and confidential information; (iv) any right analogous

 * to those set forth in subsections (i), (ii), or (iii) and any other

 * proprietary rights relating to intangible property (other than trademark,

 * trade dress, or service mark rights); and (v) divisions, continuations,

 * renewals, reissues and extensions of the foregoing (as and to the extent

 * applicable) now existing, hereafter filed, issued or acquired.

 *

 * E.  If User commences an infringement action against any Licensor(s) then

 * such Licensor(s) shall have the right to terminate User's license and

 * all sublicenses that have been granted hereunder by User to other parties.

 *

 * F.  This software is for use only in hardware or software products that

 * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1).  No license

 * or right to this Software is granted for products that do not comply

 * with ISO/IEC 15444-1.  The JPEG-2000 Part 1 standard can be purchased

 * from the ISO.

 *

 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.

 * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER

 * THIS DISCLAIMER.  THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND

 * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY

 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,

 * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,

 * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING.  THOSE INTENDING

 * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE

 * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING

 * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.

 * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE

 * IS WITH THE USER.  SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE

 * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY

 * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY

 * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,

 * REPAIR OR CORRECTION.  UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,

 * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE

 * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,

 * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE

 * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO

 * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR

 * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,

 * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR

 * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF

 * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY

 * OF SUCH DAMAGES.  THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT

 * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR

 * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING

 * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,

 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT

 * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE

 * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY

 * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE

 * ("HIGH RISK ACTIVITIES").  LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS

 * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.  USER WILL NOT

 * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING

 * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS

 * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE

 * NOTICE SPECIFIED IN THIS SECTION.

 *

 * __END_OF_JASPER_LICENSE__

 */

/*

 * Fixed-Point Number Class

 *

 * $Id: jpc_fix.h,v 1.1 2003/05/15 01:30:32 ace Exp $

 */

#ifndef JPC_FIX_H

#define JPC_FIX_H

/******************************************************************************\

* Includes.

\******************************************************************************/

#include "jas_types.h"

#include "jas_fix.h"

/******************************************************************************\

* Basic parameters of the fixed-point type.

\******************************************************************************/

/* The integral type used to represent a fixed-point number.  This

  type must be capable of representing values from -(2^31) to 2^31-1

  (inclusive). */

typedef int_fast32_t jpc_fix_t;

/* The integral type used to respresent higher-precision intermediate results.

  This type should be capable of representing values from -(2^63) to 2^63-1

  (inclusive). */

typedef int_fast64_t jpc_fix_big_t;

/* The number of bits used for the fractional part of a fixed-point number. */

#define JPC_FIX_FRACBITS        13

/******************************************************************************\

* Instantiations of the generic fixed-point number macros for the

* parameters given above.  (Too bad C does not support templates, eh?)

* The purpose of these macros is self-evident if one examines the

* corresponding macros in the jasper/jas_fix.h header file.

\******************************************************************************/

#define JPC_FIX_ZERO    JAS_FIX_ZERO(jpc_fix_t, JPC_FIX_FRACBITS)

#define JPC_FIX_ONE             JAS_FIX_ONE(jpc_fix_t, JPC_FIX_FRACBITS)

#define JPC_FIX_HALF    JAS_FIX_HALF(jpc_fix_t, JPC_FIX_FRACBITS)

#define jpc_inttofix(x) JAS_INTTOFIX(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fixtoint(x) JAS_FIXTOINT(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fixtodbl(x) JAS_FIXTODBL(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_dbltofix(x) JAS_DBLTOFIX(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_add(x, y)       JAS_FIX_ADD(jpc_fix_t, JPC_FIX_FRACBITS, x, y)

#define jpc_fix_sub(x, y)       JAS_FIX_SUB(jpc_fix_t, JPC_FIX_FRACBITS, x, y)

#define jpc_fix_mul(x, y) \

        JAS_FIX_MUL(jpc_fix_t, JPC_FIX_FRACBITS, jpc_fix_big_t, x, y)

#define jpc_fix_mulbyint(x, y) \

        JAS_FIX_MULBYINT(jpc_fix_t, JPC_FIX_FRACBITS, x, y)

#define jpc_fix_div(x, y) \

        JAS_FIX_DIV(jpc_fix_t, JPC_FIX_FRACBITS, jpc_fix_big_t, x, y)

#define jpc_fix_neg(x)          JAS_FIX_NEG(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_asl(x, n)       JAS_FIX_ASL(jpc_fix_t, JPC_FIX_FRACBITS, x, n)

#define jpc_fix_asr(x, n)       JAS_FIX_ASR(jpc_fix_t, JPC_FIX_FRACBITS, x, n)

#define jpc_fix_pluseq(x, y)    JAS_FIX_PLUSEQ(jpc_fix_t, JPC_FIX_FRACBITS, x, y)

#define jpc_fix_minuseq(x, y)   JAS_FIX_MINUSEQ(jpc_fix_t, JPC_FIX_FRACBITS, x, y)

#define jpc_fix_muleq(x, y)     \

        JAS_FIX_MULEQ(jpc_fix_t, JPC_FIX_FRACBITS, jpc_fix_big_t, x, y)

#define jpc_fix_abs(x)          JAS_FIX_ABS(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_isint(x)        JAS_FIX_ISINT(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_sgn(x)          JAS_FIX_SGN(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_round(x)        JAS_FIX_ROUND(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_floor(x)        JAS_FIX_FLOOR(jpc_fix_t, JPC_FIX_FRACBITS, x)

#define jpc_fix_trunc(x)        JAS_FIX_TRUNC(jpc_fix_t, JPC_FIX_FRACBITS, x)

/******************************************************************************\

* Extra macros for convenience.

\******************************************************************************/

/* Compute the sum of three fixed-point numbers. */

#define jpc_fix_add3(x, y, z)   jpc_fix_add(jpc_fix_add(x, y), z)

#endif