341 lines
14 KiB
C
341 lines
14 KiB
C
/*
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* Copyright (c) 1999-2000 Image Power, Inc. and the University of
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* British Columbia.
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* Copyright (c) 2001-2002 Michael David Adams.
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* All rights reserved.
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*/
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/* __START_OF_JASPER_LICENSE__
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*
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* JasPer Software License
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*
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* IMAGE POWER JPEG-2000 PUBLIC LICENSE
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* ************************************
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*
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* GRANT:
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*
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* Permission is hereby granted, free of charge, to any person (the "User")
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* obtaining a copy of this software and associated documentation, to deal
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* in the JasPer Software without restriction, including without limitation
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* the right to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the JasPer Software (in source and binary forms),
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* and to permit persons to whom the JasPer Software is furnished to do so,
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* provided further that the License Conditions below are met.
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*
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* License Conditions
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* ******************
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*
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* A. Redistributions of source code must retain the above copyright notice,
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* and this list of conditions, and the following disclaimer.
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*
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* B. Redistributions in binary form must reproduce the above copyright
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* notice, and this list of conditions, and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* C. Neither the name of Image Power, Inc. nor any other contributor
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* (including, but not limited to, the University of British Columbia and
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* Michael David Adams) may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* D. User agrees that it shall not commence any action against Image Power,
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* Inc., the University of British Columbia, Michael David Adams, or any
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* other contributors (collectively "Licensors") for infringement of any
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* intellectual property rights ("IPR") held by the User in respect of any
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* technology that User owns or has a right to license or sublicense and
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* which is an element required in order to claim compliance with ISO/IEC
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* 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property
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* rights worldwide arising under statutory or common law, and whether
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* or not perfected, including, without limitation, all (i) patents and
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* patent applications owned or licensable by User; (ii) rights associated
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* with works of authorship including copyrights, copyright applications,
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* copyright registrations, mask work rights, mask work applications,
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* mask work registrations; (iii) rights relating to the protection of
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* trade secrets and confidential information; (iv) any right analogous
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* to those set forth in subsections (i), (ii), or (iii) and any other
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* proprietary rights relating to intangible property (other than trademark,
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* trade dress, or service mark rights); and (v) divisions, continuations,
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* renewals, reissues and extensions of the foregoing (as and to the extent
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* applicable) now existing, hereafter filed, issued or acquired.
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*
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* E. If User commences an infringement action against any Licensor(s) then
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* such Licensor(s) shall have the right to terminate User's license and
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* all sublicenses that have been granted hereunder by User to other parties.
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*
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* F. The JPEG-2000 codec implementation included in the JasPer software
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* is for use only in hardware or software products that are compliant
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* with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license or right to
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* this codec implementation is granted for products that do not comply
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* with ISO/IEC 15444-1.
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*
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
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* NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
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* THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND
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* CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY
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* OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,
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* WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,
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* IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING
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* TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE
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* OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING
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* PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
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* THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE
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* IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE
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* IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY
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* OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY
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* OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,
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* REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,
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* WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE
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* INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,
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* MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE
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* JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO
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* THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
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* CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,
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* DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
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* MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF
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* SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY
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* OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT
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* FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR
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* RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING
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* FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT
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* LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
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* JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY
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* TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE
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* ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS
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* OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
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*
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*
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* __END_OF_JASPER_LICENSE__
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*/
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/*
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* $Id$
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*/
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#ifndef JPC_T1COD_H
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#define JPC_T1COD_H
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/******************************************************************************\
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* Includes.
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\******************************************************************************/
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#include "jasper_inc/jas_fix.h"
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#include "jasper_inc/jas_math.h"
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#include "jpc_inc/jpc_mqcod.h"
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#include "jpc_inc/jpc_tsfb.h"
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/******************************************************************************\
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* Constants.
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\******************************************************************************/
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/* The number of bits used to index into various lookup tables. */
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#define JPC_NMSEDEC_BITS 7
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#define JPC_NMSEDEC_FRACBITS (JPC_NMSEDEC_BITS - 1)
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/*
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* Segment types.
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*/
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/* Invalid. */
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#define JPC_SEG_INVALID 0
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/* MQ. */
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#define JPC_SEG_MQ 1
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/* Raw. */
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#define JPC_SEG_RAW 2
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/* The nominal word size. */
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#define JPC_PREC 32
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/* Tier-1 coding pass types. */
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#define JPC_SIGPASS 0 /* significance */
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#define JPC_REFPASS 1 /* refinement */
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#define JPC_CLNPASS 2 /* cleanup */
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/*
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* Per-sample state information for tier-1 coding.
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*/
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/* The northeast neighbour has been found to be significant. */
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#define JPC_NESIG 0x0001
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/* The southeast neighbour has been found to be significant. */
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#define JPC_SESIG 0x0002
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/* The southwest neighbour has been found to be significant. */
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#define JPC_SWSIG 0x0004
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/* The northwest neighbour has been found to be significant. */
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#define JPC_NWSIG 0x0008
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/* The north neighbour has been found to be significant. */
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#define JPC_NSIG 0x0010
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/* The east neighbour has been found to be significant. */
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#define JPC_ESIG 0x0020
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/* The south neighbour has been found to be significant. */
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#define JPC_SSIG 0x0040
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/* The west neighbour has been found to be significant. */
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#define JPC_WSIG 0x0080
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/* The significance mask for 8-connected neighbours. */
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#define JPC_OTHSIGMSK \
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(JPC_NSIG | JPC_NESIG | JPC_ESIG | JPC_SESIG | JPC_SSIG | JPC_SWSIG | JPC_WSIG | JPC_NWSIG)
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/* The significance mask for 4-connected neighbours. */
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#define JPC_PRIMSIGMSK (JPC_NSIG | JPC_ESIG | JPC_SSIG | JPC_WSIG)
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/* The north neighbour is negative in value. */
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#define JPC_NSGN 0x0100
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/* The east neighbour is negative in value. */
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#define JPC_ESGN 0x0200
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/* The south neighbour is negative in value. */
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#define JPC_SSGN 0x0400
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/* The west neighbour is negative in value. */
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#define JPC_WSGN 0x0800
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/* The sign mask for 4-connected neighbours. */
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#define JPC_SGNMSK (JPC_NSGN | JPC_ESGN | JPC_SSGN | JPC_WSGN)
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/* This sample has been found to be significant. */
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#define JPC_SIG 0x1000
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/* The sample has been refined. */
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#define JPC_REFINE 0x2000
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/* This sample has been processed during the significance pass. */
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#define JPC_VISIT 0x4000
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/* The number of aggregation contexts. */
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#define JPC_NUMAGGCTXS 1
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/* The number of zero coding contexts. */
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#define JPC_NUMZCCTXS 9
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/* The number of magnitude contexts. */
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#define JPC_NUMMAGCTXS 3
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/* The number of sign coding contexts. */
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#define JPC_NUMSCCTXS 5
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/* The number of uniform contexts. */
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#define JPC_NUMUCTXS 1
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/* The context ID for the first aggregation context. */
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#define JPC_AGGCTXNO 0
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/* The context ID for the first zero coding context. */
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#define JPC_ZCCTXNO (JPC_AGGCTXNO + JPC_NUMAGGCTXS)
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/* The context ID for the first magnitude context. */
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#define JPC_MAGCTXNO (JPC_ZCCTXNO + JPC_NUMZCCTXS)
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/* The context ID for the first sign coding context. */
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#define JPC_SCCTXNO (JPC_MAGCTXNO + JPC_NUMMAGCTXS)
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/* The context ID for the first uniform context. */
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#define JPC_UCTXNO (JPC_SCCTXNO + JPC_NUMSCCTXS)
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/* The total number of contexts. */
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#define JPC_NUMCTXS (JPC_UCTXNO + JPC_NUMUCTXS)
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/******************************************************************************\
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* External data.
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\******************************************************************************/
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/* These lookup tables are used by various macros/functions. */
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/* Do not access these lookup tables directly. */
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extern int jpc_zcctxnolut[];
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extern int jpc_spblut[];
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extern int jpc_scctxnolut[];
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extern int jpc_magctxnolut[];
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extern jpc_fix_t jpc_refnmsedec[];
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extern jpc_fix_t jpc_signmsedec[];
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extern jpc_fix_t jpc_refnmsedec0[];
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extern jpc_fix_t jpc_signmsedec0[];
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/* The initial settings for the MQ contexts. */
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extern jpc_mqctx_t jpc_mqctxs[];
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/******************************************************************************\
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* Functions and macros.
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\******************************************************************************/
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/* Initialize the MQ contexts. */
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void jpc_initctxs(jpc_mqctx_t *ctxs);
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/* Get the zero coding context. */
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int jpc_getzcctxno(int f, int orient);
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#define JPC_GETZCCTXNO(f, orient) \
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(jpc_zcctxnolut[((orient) << 8) | ((f) & JPC_OTHSIGMSK)])
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/* Get the sign prediction bit. */
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int jpc_getspb(int f);
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#define JPC_GETSPB(f) \
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(jpc_spblut[((f) & (JPC_PRIMSIGMSK | JPC_SGNMSK)) >> 4])
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/* Get the sign coding context. */
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int jpc_getscctxno(int f);
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#define JPC_GETSCCTXNO(f) \
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(jpc_scctxnolut[((f) & (JPC_PRIMSIGMSK | JPC_SGNMSK)) >> 4])
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/* Get the magnitude context. */
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int jpc_getmagctxno(int f);
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#define JPC_GETMAGCTXNO(f) \
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(jpc_magctxnolut[((f) & JPC_OTHSIGMSK) | ((((f) & JPC_REFINE) != 0) << 11)])
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/* Get the normalized MSE reduction for significance passes. */
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#define JPC_GETSIGNMSEDEC(x, bitpos) jpc_getsignmsedec_macro(x, bitpos)
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jpc_fix_t jpc_getsignmsedec_func(jpc_fix_t x, int bitpos);
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#define jpc_getsignmsedec_macro(x, bitpos) \
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((bitpos > JPC_NMSEDEC_FRACBITS) ? jpc_signmsedec[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)] : \
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(jpc_signmsedec0[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)]))
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/* Get the normalized MSE reduction for refinement passes. */
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#define JPC_GETREFNMSEDEC(x, bitpos) jpc_getrefnmsedec_macro(x, bitpos)
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jpc_fix_t jpc_refsignmsedec_func(jpc_fix_t x, int bitpos);
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#define jpc_getrefnmsedec_macro(x, bitpos) \
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((bitpos > JPC_NMSEDEC_FRACBITS) ? jpc_refnmsedec[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)] : \
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(jpc_refnmsedec0[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)]))
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/* Arithmetic shift right (with ability to shift left also). */
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#define JPC_ASR(x, n) \
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(((n) >= 0) ? ((x) >> (n)) : ((x) << (-(n))))
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/* Update the per-sample state information. */
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#define JPC_UPDATEFLAGS4(fp, rowstep, s, vcausalflag) \
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{ \
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register jpc_fix_t *np = (fp) - (rowstep); \
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register jpc_fix_t *sp = (fp) + (rowstep); \
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if ((vcausalflag)) { \
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sp[-1] |= JPC_NESIG; \
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sp[1] |= JPC_NWSIG; \
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if (s) { \
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*sp |= JPC_NSIG | JPC_NSGN; \
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(fp)[-1] |= JPC_ESIG | JPC_ESGN; \
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(fp)[1] |= JPC_WSIG | JPC_WSGN; \
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} else { \
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*sp |= JPC_NSIG; \
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(fp)[-1] |= JPC_ESIG; \
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(fp)[1] |= JPC_WSIG; \
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} \
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} else { \
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np[-1] |= JPC_SESIG; \
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np[1] |= JPC_SWSIG; \
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sp[-1] |= JPC_NESIG; \
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sp[1] |= JPC_NWSIG; \
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if (s) { \
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*np |= JPC_SSIG | JPC_SSGN; \
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*sp |= JPC_NSIG | JPC_NSGN; \
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(fp)[-1] |= JPC_ESIG | JPC_ESGN; \
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(fp)[1] |= JPC_WSIG | JPC_WSGN; \
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} else { \
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*np |= JPC_SSIG; \
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*sp |= JPC_NSIG; \
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(fp)[-1] |= JPC_ESIG; \
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(fp)[1] |= JPC_WSIG; \
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} \
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} \
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}
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/* Initialize the lookup tables used by the codec. */
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void jpc_initluts(void);
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/* Get the nominal gain associated with a particular band. */
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int JPC_NOMINALGAIN(int qmfbid, int numlvls, int lvlno, int orient);
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/* Get the coding pass type. */
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int JPC_PASSTYPE(int passno);
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/* Get the segment type. */
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int JPC_SEGTYPE(int passno, int firstpassno, int bypass);
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/* Get the number of coding passess in the segment. */
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int JPC_SEGPASSCNT(int passno, int firstpassno, int numpasses, int bypass,
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int termall);
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/* Is the coding pass terminated? */
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int JPC_ISTERMINATED(int passno, int firstpassno, int numpasses, int termall,
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int lazy);
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#endif
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