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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__

 */

/*

 * Tier-2 Coding Library

 *

 * $Id: jpc_t2cod.h,v 1.1 2003/05/15 01:30:32 ace Exp $

 */

#ifndef JPC_T2COD_H

#define JPC_T2COD_H

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

* Includes.

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

#include "jpc_cs.h"

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

* Types.

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

/* Progression change list. */

typedef struct {

        /* The number of progression changes. */

        int numpchgs;

        /* The maximum number of progression changes that can be accomodated

          without growing the progression change array. */

        int maxpchgs;

        /* The progression changes. */

        jpc_pchg_t **pchgs;

} jpc_pchglist_t;

/* Packet iterator per-resolution-level information. */

typedef struct {

        /* The number of precincts. */

        int numprcs;

        /* The last layer processed for each precinct. */

        int *prclyrnos;

        /* The precinct width exponent. */

        int prcwidthexpn;

        /* The precinct height exponent. */

        int prcheightexpn;

        /* The number of precincts spanning the resolution level in the horizontal

          direction. */

        int numhprcs;

} jpc_pirlvl_t;

/* Packet iterator per-component information. */

typedef struct {

        /* The number of resolution levels. */

        int numrlvls;

        /* The per-resolution-level information. */

        jpc_pirlvl_t *pirlvls;

        /* The horizontal sampling period. */

        int hsamp;

        /* The vertical sampling period. */

        int vsamp;

} jpc_picomp_t;

/* Packet iterator class. */

typedef struct {

        /* The number of layers. */

        int numlyrs;

        /* The number of resolution levels. */

        int maxrlvls;

        /* The number of components. */

        int numcomps;

        /* The per-component information. */

        jpc_picomp_t *picomps;

        /* The current component. */

        jpc_picomp_t *picomp;

        /* The current resolution level. */

        jpc_pirlvl_t *pirlvl;

        /* The number of the current component. */

        int compno;

        /* The number of the current resolution level. */

        int rlvlno;

        /* The number of the current precinct. */

        int prcno;

        /* The number of the current layer. */

        int lyrno;

        /* The x-coordinate of the current position. */

        int x;

        /* The y-coordinate of the current position. */

        int y;

        /* The horizontal step size. */

        int xstep;

        /* The vertical step size. */

        int ystep;

        /* The x-coordinate of the top-left corner of the tile on the reference

          grid. */

        int xstart;

        /* The y-coordinate of the top-left corner of the tile on the reference

          grid. */

        int ystart;

        /* The x-coordinate of the bottom-right corner of the tile on the

          reference grid (plus one). */

        int xend;

        /* The y-coordinate of the bottom-right corner of the tile on the

          reference grid (plus one). */

        int yend;

        /* The current progression change. */

        jpc_pchg_t *pchg;

        /* The progression change list. */

        jpc_pchglist_t *pchglist;

        /* The progression to use in the absense of explicit specification. */

        jpc_pchg_t defaultpchg;

        /* The current progression change number. */

        int pchgno;

        /* Is this the first time in the current progression volume? */

        bool prgvolfirst;

        /* Is the current iterator value valid? */

        bool valid;

        /* The current packet number. */

        int pktno;

} jpc_pi_t;

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

* Functions/macros for packet iterators.

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

/* Create a packet iterator. */

jpc_pi_t *jpc_pi_create0(void);

/* Destroy a packet iterator. */

void jpc_pi_destroy(jpc_pi_t *pi);

/* Add a progression change to a packet iterator. */

int jpc_pi_addpchg(jpc_pi_t *pi, jpc_pocpchg_t *pchg);

/* Prepare a packet iterator for iteration. */

int jpc_pi_init(jpc_pi_t *pi);

/* Set the iterator to the first packet. */

int jpc_pi_begin(jpc_pi_t *pi);

/* Proceed to the next packet in sequence. */

int jpc_pi_next(jpc_pi_t *pi);

/* Get the index of the current packet. */

#define jpc_pi_getind(pi)       ((pi)->pktno)

/* Get the component number of the current packet. */

#define jpc_pi_cmptno(pi)       (assert(pi->valid), (pi)->compno)

/* Get the resolution level of the current packet. */

#define jpc_pi_rlvlno(pi)       (assert(pi->valid), (pi)->rlvlno)

/* Get the layer number of the current packet. */

#define jpc_pi_lyrno(pi)        (assert(pi->valid), (pi)->lyrno)

/* Get the precinct number of the current packet. */

#define jpc_pi_prcno(pi)        (assert(pi->valid), (pi)->prcno)

/* Get the progression order for the current packet. */

#define jpc_pi_prg(pi)  (assert(pi->valid), (pi)->pchg->prgord)

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

* Functions/macros for progression change lists.

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

/* Create a progression change list. */

jpc_pchglist_t *jpc_pchglist_create(void);

/* Destroy a progression change list. */

void jpc_pchglist_destroy(jpc_pchglist_t *pchglist);

/* Insert a new element into a progression change list. */

int jpc_pchglist_insert(jpc_pchglist_t *pchglist, int pchgno, jpc_pchg_t *pchg);

/* Remove an element from a progression change list. */

jpc_pchg_t *jpc_pchglist_remove(jpc_pchglist_t *pchglist, int pchgno);

/* Get an element from a progression change list. */

jpc_pchg_t *jpc_pchglist_get(jpc_pchglist_t *pchglist, int pchgno);

/* Copy a progression change list. */

jpc_pchglist_t *jpc_pchglist_copy(jpc_pchglist_t *pchglist);

/* Get the number of elements in a progression change list. */

int jpc_pchglist_numpchgs(jpc_pchglist_t *pchglist);

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

* Functions/macros for progression changes.

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

/* Destroy a progression change. */

void jpc_pchg_destroy(jpc_pchg_t *pchg);

/* Copy a progression change. */

jpc_pchg_t *jpc_pchg_copy(jpc_pchg_t *pchg);

#endif