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299 lines
9.1 KiB
299 lines
9.1 KiB
/* |
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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 License Version 2.0 |
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* |
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* Copyright (c) 2001-2006 Michael David Adams |
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* Copyright (c) 1999-2000 Image Power, Inc. |
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* Copyright (c) 1999-2000 The University of British Columbia |
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* |
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* All rights reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person (the |
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* "User") obtaining a copy of this software and associated documentation |
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* files (the "Software"), to deal in the Software without restriction, |
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* including without limitation the rights to use, copy, modify, merge, |
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* publish, distribute, and/or sell copies of the Software, and to permit |
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* persons to whom the Software is furnished to do so, subject to the |
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* following conditions: |
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* |
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* 1. The above copyright notices and this permission notice (which |
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* includes the disclaimer below) shall be included in all copies or |
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* substantial portions of the Software. |
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* |
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* 2. The name of a copyright holder shall not be used to endorse or |
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* promote products derived from the Software without specific prior |
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* written permission. |
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* |
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS |
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* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER |
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* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS |
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* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A |
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* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO |
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL |
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* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING |
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION |
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE |
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* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE |
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* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. |
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* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS |
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* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL |
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* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS |
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* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE |
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* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE |
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* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL |
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* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, |
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL |
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* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH |
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* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, |
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* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH |
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* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY |
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* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. |
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* |
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* __END_OF_JASPER_LICENSE__ |
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*/ |
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/* |
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* Tier-2 Coding Library |
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* |
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* $Id: jpc_t2cod.h,v 1.2 2008-05-26 09:40:52 vp153 Exp $ |
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*/ |
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#ifndef JPC_T2COD_H |
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#define JPC_T2COD_H |
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/******************************************************************************\ |
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* Includes. |
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\******************************************************************************/ |
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#include "jpc_cs.h" |
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/******************************************************************************\ |
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* Types. |
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\******************************************************************************/ |
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/* Progression change list. */ |
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typedef struct { |
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/* The number of progression changes. */ |
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int numpchgs; |
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/* The maximum number of progression changes that can be accomodated |
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without growing the progression change array. */ |
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int maxpchgs; |
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/* The progression changes. */ |
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jpc_pchg_t **pchgs; |
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} jpc_pchglist_t; |
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/* Packet iterator per-resolution-level information. */ |
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typedef struct { |
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/* The number of precincts. */ |
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int numprcs; |
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/* The last layer processed for each precinct. */ |
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int *prclyrnos; |
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/* The precinct width exponent. */ |
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int prcwidthexpn; |
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/* The precinct height exponent. */ |
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int prcheightexpn; |
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/* The number of precincts spanning the resolution level in the horizontal |
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direction. */ |
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int numhprcs; |
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} jpc_pirlvl_t; |
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/* Packet iterator per-component information. */ |
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typedef struct { |
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/* The number of resolution levels. */ |
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int numrlvls; |
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/* The per-resolution-level information. */ |
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jpc_pirlvl_t *pirlvls; |
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/* The horizontal sampling period. */ |
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int hsamp; |
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/* The vertical sampling period. */ |
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int vsamp; |
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} jpc_picomp_t; |
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/* Packet iterator class. */ |
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typedef struct { |
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/* The number of layers. */ |
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int numlyrs; |
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/* The number of resolution levels. */ |
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int maxrlvls; |
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/* The number of components. */ |
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int numcomps; |
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/* The per-component information. */ |
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jpc_picomp_t *picomps; |
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/* The current component. */ |
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jpc_picomp_t *picomp; |
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/* The current resolution level. */ |
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jpc_pirlvl_t *pirlvl; |
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/* The number of the current component. */ |
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int compno; |
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/* The number of the current resolution level. */ |
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int rlvlno; |
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/* The number of the current precinct. */ |
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int prcno; |
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/* The number of the current layer. */ |
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int lyrno; |
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/* The x-coordinate of the current position. */ |
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int x; |
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/* The y-coordinate of the current position. */ |
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int y; |
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/* The horizontal step size. */ |
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int xstep; |
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/* The vertical step size. */ |
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int ystep; |
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/* The x-coordinate of the top-left corner of the tile on the reference |
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grid. */ |
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int xstart; |
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/* The y-coordinate of the top-left corner of the tile on the reference |
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grid. */ |
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int ystart; |
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/* The x-coordinate of the bottom-right corner of the tile on the |
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reference grid (plus one). */ |
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int xend; |
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/* The y-coordinate of the bottom-right corner of the tile on the |
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reference grid (plus one). */ |
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int yend; |
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/* The current progression change. */ |
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jpc_pchg_t *pchg; |
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/* The progression change list. */ |
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jpc_pchglist_t *pchglist; |
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/* The progression to use in the absense of explicit specification. */ |
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jpc_pchg_t defaultpchg; |
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/* The current progression change number. */ |
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int pchgno; |
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/* Is this the first time in the current progression volume? */ |
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bool prgvolfirst; |
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/* Is the current iterator value valid? */ |
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bool valid; |
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/* The current packet number. */ |
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int pktno; |
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} jpc_pi_t; |
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/******************************************************************************\ |
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* Functions/macros for packet iterators. |
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\******************************************************************************/ |
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/* Create a packet iterator. */ |
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jpc_pi_t *jpc_pi_create0(void); |
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/* Destroy a packet iterator. */ |
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void jpc_pi_destroy(jpc_pi_t *pi); |
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/* Add a progression change to a packet iterator. */ |
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int jpc_pi_addpchg(jpc_pi_t *pi, jpc_pocpchg_t *pchg); |
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/* Prepare a packet iterator for iteration. */ |
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int jpc_pi_init(jpc_pi_t *pi); |
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/* Set the iterator to the first packet. */ |
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int jpc_pi_begin(jpc_pi_t *pi); |
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/* Proceed to the next packet in sequence. */ |
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int jpc_pi_next(jpc_pi_t *pi); |
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/* Get the index of the current packet. */ |
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#define jpc_pi_getind(pi) ((pi)->pktno) |
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/* Get the component number of the current packet. */ |
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#define jpc_pi_cmptno(pi) (assert(pi->valid), (pi)->compno) |
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/* Get the resolution level of the current packet. */ |
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#define jpc_pi_rlvlno(pi) (assert(pi->valid), (pi)->rlvlno) |
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/* Get the layer number of the current packet. */ |
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#define jpc_pi_lyrno(pi) (assert(pi->valid), (pi)->lyrno) |
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/* Get the precinct number of the current packet. */ |
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#define jpc_pi_prcno(pi) (assert(pi->valid), (pi)->prcno) |
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/* Get the progression order for the current packet. */ |
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#define jpc_pi_prg(pi) (assert(pi->valid), (pi)->pchg->prgord) |
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/******************************************************************************\ |
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* Functions/macros for progression change lists. |
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\******************************************************************************/ |
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/* Create a progression change list. */ |
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jpc_pchglist_t *jpc_pchglist_create(void); |
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/* Destroy a progression change list. */ |
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void jpc_pchglist_destroy(jpc_pchglist_t *pchglist); |
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/* Insert a new element into a progression change list. */ |
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int jpc_pchglist_insert(jpc_pchglist_t *pchglist, int pchgno, jpc_pchg_t *pchg); |
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/* Remove an element from a progression change list. */ |
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jpc_pchg_t *jpc_pchglist_remove(jpc_pchglist_t *pchglist, int pchgno); |
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/* Get an element from a progression change list. */ |
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jpc_pchg_t *jpc_pchglist_get(jpc_pchglist_t *pchglist, int pchgno); |
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/* Copy a progression change list. */ |
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jpc_pchglist_t *jpc_pchglist_copy(jpc_pchglist_t *pchglist); |
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/* Get the number of elements in a progression change list. */ |
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int jpc_pchglist_numpchgs(jpc_pchglist_t *pchglist); |
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/******************************************************************************\ |
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* Functions/macros for progression changes. |
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\******************************************************************************/ |
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/* Destroy a progression change. */ |
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void jpc_pchg_destroy(jpc_pchg_t *pchg); |
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/* Copy a progression change. */ |
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jpc_pchg_t *jpc_pchg_copy(jpc_pchg_t *pchg); |
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#endif
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