/*
* 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__
*/
/*
* JPEG-2000 Decoder
*
* $Id$
*/
#ifndef JPC_DEC_H
#define JPC_DEC_H
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jasper/jas_stream.h"
#include "jpc_tsfb.h"
#include "jpc_bs.h"
#include "jpc_tagtree.h"
#include "jpc_cs.h"
#include "jpc_cod.h"
#include "jpc_mqdec.h"
#include "jpc_t2cod.h"
/******************************************************************************\
* Below are some ugly warts necessary to support packed packet headers.
\******************************************************************************/
/* PPM/PPT marker segment table entry. */
typedef struct {
/* The index for this entry. */
uint_fast16_t ind;
/* The data length. */
uint_fast32_t len;
/* The data. */
unsigned char *data;
} jpc_ppxstabent_t;
/* PPM/PPT marker segment table. */
typedef struct {
/* The number of entries. */
int numents;
/* The maximum number of entries (i.e., the allocated size of the array
below). */
int maxents;
/* The table entries. */
jpc_ppxstabent_t **ents;
} jpc_ppxstab_t;
/* Stream list class. */
typedef struct {
/* The number of streams in this list. */
int numstreams;
/* The maximum number of streams that can be accommodated without
growing the streams array. */
int maxstreams;
/* The streams. */
jas_stream_t **streams;
} jpc_streamlist_t;
/******************************************************************************\
* Coding parameters class.
\******************************************************************************/
/* Per-component coding parameters. */
typedef struct {
/* How were various coding parameters set? */
int flags;
/* Per-component coding style parameters (e.g., explicit precinct sizes) */
uint_fast8_t csty;
/* The number of resolution levels. */
uint_fast8_t numrlvls;
/* The code block width exponent. */
uint_fast8_t cblkwidthexpn;
/* The code block height exponent. */
uint_fast8_t cblkheightexpn;
/* The QMFB ID. */
uint_fast8_t qmfbid;
/* The quantization style. */
uint_fast8_t qsty;
/* The number of quantizer step sizes. */
uint_fast16_t numstepsizes;
/* The step sizes. */
uint_fast16_t stepsizes[3 * JPC_MAXRLVLS + 1];
/* The number of guard bits. */
uint_fast8_t numguardbits;
/* The ROI shift value. */
uint_fast8_t roishift;
/* The code block parameters. */
uint_fast8_t cblkctx;
/* The precinct width exponents. */
uint_fast8_t prcwidthexpns[JPC_MAXRLVLS];
/* The precinct height exponents. */
uint_fast8_t prcheightexpns[JPC_MAXRLVLS];
} jpc_dec_ccp_t;
/* Coding paramters. */
typedef struct {
/* How were these coding parameters set? */
int flags;
/* Progression change list. */
jpc_pchglist_t *pchglist;
/* Progression order. */
uint_fast8_t prgord;
/* The number of layers. */
uint_fast16_t numlyrs;
/* The MCT ID. */
uint_fast8_t mctid;
/* The coding style parameters (e.g., SOP, EPH). */
uint_fast8_t csty;
/* The number of components. */
uint_fast16_t numcomps;
/* The per-component coding parameters. */
jpc_dec_ccp_t *ccps;
} jpc_dec_cp_t;
/******************************************************************************\
* Decoder class.
\******************************************************************************/
/* Decoder per-segment state information. */
typedef struct jpc_dec_seg_s {
/* The next segment in the list. */
struct jpc_dec_seg_s *next;
/* The previous segment in the list. */
struct jpc_dec_seg_s *prev;
/* The starting pass number for this segment. */
int passno;
/* The number of passes in this segment. */
int numpasses;
/* The maximum number of passes in this segment. */
int maxpasses;
/* The type of data in this segment (i.e., MQ or raw). */
int type;
/* A stream containing the data for this segment. */
jas_stream_t *stream;
/* The number of bytes destined for this segment from the packet
currently being decoded. */
int cnt;
/* A flag indicating if this segment has been terminated. */
int complete;
/* The layer number to which this segment belongs. */
/* If the segment spans multiple layers, then the largest layer number
spanned by the segment is used. */
int lyrno;
} jpc_dec_seg_t;
/* Decoder segment list. */
typedef struct {
/* The first entry in the list. */
jpc_dec_seg_t *head;
/* The last entry in the list. */
jpc_dec_seg_t *tail;
} jpc_dec_seglist_t;
/* Decoder per-code-block state information. */
typedef struct {
/* The number of passes. */
int numpasses;
/* A list of segments that still need to be decoded. */
jpc_dec_seglist_t segs;
/* The first incomplete/partial segment. */
jpc_dec_seg_t *curseg;
/* The number of leading insignificant bit planes for this code block. */
int numimsbs;
/* The number of bits used to encode pass data lengths. */
int numlenbits;
/* The first pass number containing data for this code block. */
int firstpassno;
/* The MQ decoder. */
jpc_mqdec_t *mqdec;
/* The raw bit stream decoder. */
jpc_bitstream_t *nulldec;
/* The per-sample state information for this code block. */
jas_matrix_t *flags;
/* The sample data associated with this code block. */
jas_matrix_t *data;
} jpc_dec_cblk_t;
/* Decoder per-code-block-group state information. */
typedef struct {
/* The x-coordinate of the top-left corner of the precinct. */
uint_fast32_t xstart;
/* The y-coordinate of the top-left corner of the precinct. */
uint_fast32_t ystart;
/* The x-coordinate of the bottom-right corner of the precinct
(plus one). */
uint_fast32_t xend;
/* The y-coordinate of the bottom-right corner of the precinct
(plus one). */
uint_fast32_t yend;
/* The number of code blocks spanning this precinct in the horizontal
direction. */
int numhcblks;
/* The number of code blocks spanning this precinct in the vertical
direction. */
int numvcblks;
/* The total number of code blocks in this precinct. */
int numcblks;
/* The per code block information. */
jpc_dec_cblk_t *cblks;
/* The inclusion tag tree. */
jpc_tagtree_t *incltagtree;
/* The insignificant MSBs tag tree. */
jpc_tagtree_t *numimsbstagtree;
} jpc_dec_prc_t;
/* Decoder per-band state information. */
typedef struct {
/* The per-code-block-group state information. */
jpc_dec_prc_t *prcs;
/* The sample data associated with this band. */
jas_matrix_t *data;
/* The orientation of this band (i.e., LL, LH, HL, or HH). */
int orient;
/* The encoded quantizer step size. */
int stepsize;
/* The absolute quantizer step size. */
jpc_fix_t absstepsize;
/* The number of bit planes for this band. */
int numbps;
/* The analysis gain associated with this band. */
int analgain;
/* The ROI shift value for this band. */
int roishift;
} jpc_dec_band_t;
/* Decoder per-resolution-level state information. */
typedef struct {
/* The number of bands associated with this resolution level. */
int numbands;
/* The per-band information. */
jpc_dec_band_t *bands;
/* The x-coordinate of the top-left corner of the tile-component
at this resolution. */
uint_fast32_t xstart;
/* The y-coordinate of the top-left corner of the tile-component
at this resolution. */
uint_fast32_t ystart;
/* The x-coordinate of the bottom-right corner of the tile-component
at this resolution (plus one). */
uint_fast32_t xend;
/* The y-coordinate of the bottom-right corner of the tile-component
at this resolution (plus one). */
uint_fast32_t yend;
/* The exponent value for the nominal precinct width measured
relative to the associated LL band. */
int prcwidthexpn;
/* The exponent value for the nominal precinct height measured
relative to the associated LL band. */
int prcheightexpn;
/* The number of precincts in the horizontal direction. */
int numhprcs;
/* The number of precincts in the vertical direction. */
int numvprcs;
/* The total number of precincts. */
int numprcs;
/* The exponent value for the nominal code block group width.
This quantity is associated with the next lower resolution level
(assuming that there is one). */
int cbgwidthexpn;
/* The exponent value for the nominal code block group height
This quantity is associated with the next lower resolution level
(assuming that there is one). */
int cbgheightexpn;
/* The exponent value for the code block width. */
uint_fast16_t cblkwidthexpn;
/* The exponent value for the code block height. */
uint_fast16_t cblkheightexpn;
} jpc_dec_rlvl_t;
/* Decoder per-tile-component state information. */
typedef struct {
/* The x-coordinate of the top-left corner of the tile-component
in the coordinate system of the tile-component. */
uint_fast32_t xstart;
/* The y-coordinate of the top-left corner of the tile-component
in the coordinate system of the tile-component. */
uint_fast32_t ystart;
/* The x-coordinate of the bottom-right corner of the tile-component
in the coordinate system of the tile-component (plus one). */
uint_fast32_t xend;
/* The y-coordinate of the bottom-right corner of the tile-component
in the coordinate system of the tile-component (plus one). */
uint_fast32_t yend;
/* The component data for the current tile. */
jas_matrix_t *data;
/* The number of resolution levels. */
uint_fast16_t numrlvls;
/* The per resolution level information. */
jpc_dec_rlvl_t *rlvls;
/* The TSFB. */
jpc_tsfb_t *tsfb;
} jpc_dec_tcomp_t;
/*
* Tile states.
*/
#define JPC_TILE_INIT 0
#define JPC_TILE_ACTIVE 1
#define JPC_TILE_ACTIVELAST 2
#define JPC_TILE_DONE 3
/* Decoder per-tile state information. */
typedef struct {
/* The processing state for this tile. */
int state;
/* The x-coordinate of the top-left corner of the tile on the reference
grid. */
uint_fast32_t xstart;
/* The y-coordinate of the top-left corner of the tile on the reference
grid. */
uint_fast32_t ystart;
/* The x-coordinate of the bottom-right corner of the tile on the
reference grid (plus one). */
uint_fast32_t xend;
/* The y-coordinate of the bottom-right corner of the tile on the
reference grid (plus one). */
uint_fast32_t yend;
/* The packed packet header data for this tile. */
jpc_ppxstab_t *pptstab;
/* A stream containing the packed packet header data for this tile. */
jas_stream_t *pkthdrstream;
/* The current position within the packed packet header stream. */
long pkthdrstreampos;
/* The coding parameters for this tile. */
jpc_dec_cp_t *cp;
/* The per tile-component information. */
jpc_dec_tcomp_t *tcomps;
/* The next expected tile-part number. */
int partno;
/* The number of tile-parts. */
int numparts;
/* The coding mode. */
int realmode;
/* The packet iterator for this tile. */
jpc_pi_t *pi;
} jpc_dec_tile_t;
/* Decoder per-component state information. */
typedef struct {
/* The horizontal sampling period. */
uint_fast32_t hstep;
/* The vertical sampling period. */
uint_fast32_t vstep;
/* The number of samples in the horizontal direction. */
uint_fast32_t width;
/* The number of samples in the vertical direction. */
uint_fast32_t height;
/* The precision of the sample data. */
uint_fast16_t prec;
/* The signedness of the sample data. */
bool sgnd;
/* The sample alignment horizontal offset. */
uint_fast32_t hsubstep;
/* The sample alignment vertical offset. */
uint_fast32_t vsubstep;
} jpc_dec_cmpt_t;
/* Decoder state information. */
typedef struct {
/* The decoded image. */
jas_image_t *image;
/* The x-coordinate of the top-left corner of the image area on
the reference grid. */
uint_fast32_t xstart;
/* The y-coordinate of the top-left corner of the image area on
the reference grid. */
uint_fast32_t ystart;
/* The x-coordinate of the bottom-right corner of the image area on
the reference grid (plus one). */
uint_fast32_t xend;
/* The y-coordinate of the bottom-right corner of the image area on
the reference grid (plus one). */
uint_fast32_t yend;
/* The nominal tile width in units of the image reference grid. */
uint_fast32_t tilewidth;
/* The nominal tile height in units of the image reference grid. */
uint_fast32_t tileheight;
/* The horizontal offset from the origin of the reference grid to the
left side of the first tile. */
uint_fast32_t tilexoff;
/* The vertical offset from the origin of the reference grid to the
top side of the first tile. */
uint_fast32_t tileyoff;
/* The number of tiles spanning the image area in the vertical
direction. */
int numhtiles;
/* The number of tiles spanning the image area in the horizontal
direction. */
int numvtiles;
/* The total number of tiles. */
int numtiles;
/* The per-tile information. */
jpc_dec_tile_t *tiles;
/* The tile currently being processed. */
jpc_dec_tile_t *curtile;
/* The number of components. */
int numcomps;
/* The stream containing the input JPEG-2000 code stream data. */
jas_stream_t *in;
/* The default coding parameters for all tiles. */
jpc_dec_cp_t *cp;
/* The maximum number of layers that may be decoded. */
int maxlyrs;
/* The maximum number of packets that may be decoded. */
int maxpkts;
/* The number of packets decoded so far in the processing of the entire
code stream. */
int numpkts;
/* The next expected PPM marker segment sequence number. */
int ppmseqno;
/* The current state for code stream processing. */
int state;
/* The per-component information. */
jpc_dec_cmpt_t *cmpts;
/* The information from PPM marker segments. */
jpc_ppxstab_t *ppmstab;
/* A list of streams containing packet header data from PPM marker
segments. */
jpc_streamlist_t *pkthdrstreams;
/* The expected ending offset for a tile-part. */
long curtileendoff;
/* This is required by the tier-2 decoder. */
jpc_cstate_t *cstate;
} jpc_dec_t;
/* Decoder options. */
typedef struct {
/* The debug level for the decoder. */
int debug;
/* The maximum number of layers to decode. */
int maxlyrs;
/* The maximum number of packets to decode. */
int maxpkts;
} jpc_dec_importopts_t;
/******************************************************************************\
* Functions.
\******************************************************************************/
/* Create a decoder segment object. */
jpc_dec_seg_t *jpc_seg_alloc(void);
/* Destroy a decoder segment object. */
void jpc_seg_destroy(jpc_dec_seg_t *seg);
/* Remove a segment from a segment list. */
void jpc_seglist_remove(jpc_dec_seglist_t *list, jpc_dec_seg_t *node);
/* Insert a segment into a segment list. */
void jpc_seglist_insert(jpc_dec_seglist_t *list, jpc_dec_seg_t *ins,
jpc_dec_seg_t *node);
#endif