[vba-commit] VisualBoyAdvance/win32/dependencies/libjasper/jpc jpc_bs.c,NONE,1.1 jpc_bs.h,NONE,1.1 jpc_cod.h,NONE,1.1 jpc_cs.c,NONE,1.1 jpc_cs.h,NONE,1.1 jpc_dec.c,NONE,1.1 jpc_dec.h,NONE,1.1 jpc_enc.c,NONE,1.1 jpc_enc.h,NONE,1.1 jpc_fix.h,NONE,1.1 jpc_flt.h,NONE,1.1 jpc_math.c,NONE,1.1 jpc_math.h,NONE,1.1 jpc_mct.c,NONE,1.1 jpc_mct.h,NONE,1.1 jpc_mqcod.c,NONE,1.1 jpc_mqcod.h,NONE,1.1 jpc_mqdec.c,NONE,1.1 jpc_mqdec.h,NONE,1.1 jpc_mqenc.c,NONE,1.1 jpc_mqenc.h,NONE,1.1 jpc_qmfb.c,NONE,1.1 jpc_qmfb.h,NONE,1.1 jpc_t1cod.c,NONE,1.1 jpc_t1cod.h,NONE,1.1 jpc_t1dec.c,NONE,1.1 jpc_t1dec.h,NONE,1.1 jpc_t1enc.c,NONE,1.1 jpc_t1enc.h,NONE,1.1 jpc_t2cod.c,NONE,1.1 jpc_t2cod.h,NONE,1.1 jpc_t2dec.c,NONE,1.1 jpc_t2dec.h,NONE,1.1 jpc_t2enc.c,NONE,1.1 jpc_t2enc.h,NONE,1.1 jpc_tagtree.c,NONE,1.1 jpc_tagtree.h,NONE,1.1 jpc_tsfb.c,NONE,1.1 jpc_tsfb.h,NONE,1.1 jpc_util.c,NONE,1.1 jpc_util.h,NONE,1.1

[Spacy <sp...@us...>]

Update of /cvsroot/vba/VisualBoyAdvance/win32/dependencies/libjasper/jpc
In directory sc8-pr-cvs9.sourceforge.net:/tmp/cvs-serv20508/win32/dependencies/libjasper/jpc

Added Files:
	jpc_bs.c jpc_bs.h jpc_cod.h jpc_cs.c jpc_cs.h jpc_dec.c 
	jpc_dec.h jpc_enc.c jpc_enc.h jpc_fix.h jpc_flt.h jpc_math.c 
	jpc_math.h jpc_mct.c jpc_mct.h jpc_mqcod.c jpc_mqcod.h 
	jpc_mqdec.c jpc_mqdec.h jpc_mqenc.c jpc_mqenc.h jpc_qmfb.c 
	jpc_qmfb.h jpc_t1cod.c jpc_t1cod.h jpc_t1dec.c jpc_t1dec.h 
	jpc_t1enc.c jpc_t1enc.h jpc_t2cod.c jpc_t2cod.h jpc_t2dec.c 
	jpc_t2dec.h jpc_t2enc.c jpc_t2enc.h jpc_tagtree.c 
	jpc_tagtree.h jpc_tsfb.c jpc_tsfb.h jpc_util.c jpc_util.h 
Log Message:


--- NEW FILE: jpc_qmfb.h ---
/*
 * 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 License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the
 * following conditions:
 * 
 * 1.  The above copyright notices and this permission notice (which
 * includes the disclaimer below) shall be included in all copies or
 * substantial portions of the Software.
 * 
 * 2.  The name of a copyright holder shall not be used to endorse or
 * promote products derived from the Software without specific prior
 * written permission.
 * 
 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
 * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
 * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
 * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
 * 
 * __END_OF_JASPER_LICENSE__
 */

/*
 * Quadrature Mirror-Image Filter Bank (QMFB) Routines
 *
 * $Id: jpc_qmfb.h,v 1.1 2006/05/12 21:26:38 spacy51 Exp $
 */

#ifndef JPC_QMFB_H
#define JPC_QMFB_H

/******************************************************************************\
* Includes.
\******************************************************************************/

#include "jasper/jas_seq.h"

/******************************************************************************\
* Constants.
\******************************************************************************/

/* The maximum number of channels for a QMF bank. */
#define	JPC_QMFB1D_MAXCHANS	2

/* Select reversible integer-to-integer mode. */
#define	JPC_QMFB1D_RITIMODE	1

/* Vertical filtering. */
#define	JPC_QMFB1D_VERT	0x10000

/* QMFB IDs. */
#define	JPC_QMFB1D_FT	1	/* 5/3 */
#define	JPC_QMFB1D_NS	2	/* 9/7 */

/******************************************************************************\
* Types.
\******************************************************************************/

/* Forward declaration. */
struct jpc_qmfb1dops_s;

/* Band information. */

typedef struct {

	/* The starting index for the band in the downsampled domain. */
	int start;

	/* The ending index for the band in the downsampled domain. */
	int end;

	/* The location of the start of the band. */
	int locstart;

	/* The location of the end of the band. */
	int locend;

} jpc_qmfb1dband_t;

/* QMF bank */

typedef struct {

	/* The operations for this QMFB. */
	struct jpc_qmfb1dops_s *ops;

} jpc_qmfb1d_t;

/* QMFB operations. */

typedef struct jpc_qmfb1dops_s {

	/* The number of channels in the QMFB. */
	int (*getnumchans)(jpc_qmfb1d_t *qmfb);

	/* Get the analysis filters for this QMFB. */
	int (*getanalfilters)(jpc_qmfb1d_t *qmfb, int len, jas_seq2d_t **filters);

	/* Get the synthesis filters for this QMFB. */
	int (*getsynfilters)(jpc_qmfb1d_t *qmfb, int len, jas_seq2d_t **filters);

	/* Do analysis. */
	void (*analyze)(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);

	/* Do synthesis. */
	void (*synthesize)(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);

} jpc_qmfb1dops_t;

/******************************************************************************\
* Functions.
\******************************************************************************/

/* Create a QMFB from a QMFB ID. */
jpc_qmfb1d_t *jpc_qmfb1d_make(int qmfbid);

/* Create a copy of a QMFB. */
jpc_qmfb1d_t *jpc_qmfb1d_copy(jpc_qmfb1d_t *qmfb);

/* Destroy a QMFB. */
void jpc_qmfb1d_destroy(jpc_qmfb1d_t *qmfb);

/* Get the number of channels for a QMFB. */
int jpc_qmfb1d_getnumchans(jpc_qmfb1d_t *qmfb);

/* Get the analysis filters for a QMFB. */
int jpc_qmfb1d_getanalfilters(jpc_qmfb1d_t *qmfb, int len,
  jas_seq2d_t **filters);

/* Get the synthesis filters for a QMFB. */
int jpc_qmfb1d_getsynfilters(jpc_qmfb1d_t *qmfb, int len,
  jas_seq2d_t **filters);

/* Get the bands for a QMFB. */
void jpc_qmfb1d_getbands(jpc_qmfb1d_t *qmfb, int flags, uint_fast32_t xstart,
  uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend, int maxbands,
  int *numbandsptr, jpc_qmfb1dband_t *bands);

/* Perform analysis. */
void jpc_qmfb1d_analyze(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);

/* Perform synthesis. */
void jpc_qmfb1d_synthesize(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x);

#endif

--- NEW FILE: jpc_enc.c ---
/*
 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
 *   British Columbia.
 * Copyright (c) 2001-2003 Michael David Adams.
 * All rights reserved.
 */

/* __START_OF_JASPER_LICENSE__
 * 
 * JasPer License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
[...2584 lines suppressed...]
			  ++bandno, ++band) {
				if (!band->data) {
					continue;
				}
				fprintf(stderr, "      band %5d %5d %5d %5d\n", jas_seq2d_xstart(band->data), jas_seq2d_ystart(band->data), jas_seq2d_xend(band->data), jas_seq2d_yend(band->data));
				for (prcno = 0, prc = band->prcs; prcno < rlvl->numprcs;
				  ++prcno, ++prc) {
					fprintf(stderr, "        prc %5d %5d %5d %5d (%5d %5d)\n", prc->tlx, prc->tly, prc->brx, prc->bry, prc->brx - prc->tlx, prc->bry - prc->tly);
					if (!prc->cblks) {
						continue;
					}
					for (cblkno = 0, cblk = prc->cblks; cblkno < prc->numcblks;
					  ++cblkno, ++cblk) {
						fprintf(stderr, "         cblk %5d %5d %5d %5d\n", jas_seq2d_xstart(cblk->data), jas_seq2d_ystart(cblk->data), jas_seq2d_xend(cblk->data), jas_seq2d_yend(cblk->data));
					}
				}
			}
		}
	}
}

--- NEW FILE: jpc_qmfb.c ---
/*
 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
 *   British Columbia.
 * Copyright (c) 2001-2003 Michael David Adams.
 * All rights reserved.
 */

/* __START_OF_JASPER_LICENSE__
 * 
 * JasPer License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
[...1083 lines suppressed...]

int jpc_qmfb1d_getanalfilters(jpc_qmfb1d_t *qmfb, int len, jas_seq2d_t **filters)
{
	return (*qmfb->ops->getanalfilters)(qmfb, len, filters);
}

int jpc_qmfb1d_getsynfilters(jpc_qmfb1d_t *qmfb, int len, jas_seq2d_t **filters)
{
	return (*qmfb->ops->getsynfilters)(qmfb, len, filters);
}

void jpc_qmfb1d_analyze(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x)
{
	(*qmfb->ops->analyze)(qmfb, flags, x);
}

void jpc_qmfb1d_synthesize(jpc_qmfb1d_t *qmfb, int flags, jas_seq2d_t *x)
{
	(*qmfb->ops->synthesize)(qmfb, flags, x);
}

--- NEW FILE: jpc_cs.c ---
/*
 * 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 License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
[...1606 lines suppressed...]
		}
	}
	if (n < 2) {
		return -1;
	}
	if (buf[0] == (JPC_MS_SOC >> 8) && buf[1] == (JPC_MS_SOC & 0xff)) {
		return 0;
	}
	return -1;
}

int jpc_getdata(jas_stream_t *in, jas_stream_t *out, long len)
{
	return jas_stream_copy(out, in, len);
}

int jpc_putdata(jas_stream_t *out, jas_stream_t *in, long len)
{
	return jas_stream_copy(out, in, len);
}

--- NEW FILE: jpc_enc.h ---
/*
 * 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 License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the
 * following conditions:
 * 
 * 1.  The above copyright notices and this permission notice (which
 * includes the disclaimer below) shall be included in all copies or
 * substantial portions of the Software.
 * 
 * 2.  The name of a copyright holder shall not be used to endorse or
 * promote products derived from the Software without specific prior
 * written permission.
 * 
 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
 * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
 * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
 * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
 * 
 * __END_OF_JASPER_LICENSE__
 */

/*
 * $Id: jpc_enc.h,v 1.1 2006/05/12 21:26:38 spacy51 Exp $
 */

#ifndef JPC_ENC_H
#define JPC_ENC_H

/******************************************************************************\
* Includes.
\******************************************************************************/

#include "jasper/jas_seq.h"

#include "jpc_t2cod.h"
#include "jpc_mqenc.h"
#include "jpc_cod.h"
#include "jpc_tagtree.h"
#include "jpc_cs.h"
#include "jpc_flt.h"
#include "jpc_tsfb.h"

/******************************************************************************\
* Constants.
\******************************************************************************/

/* The number of bits used in various lookup tables. */
#define	JPC_NUMEXTRABITS	JPC_NMSEDEC_FRACBITS

/* An invalid R-D slope value. */
#define	JPC_BADRDSLOPE	(-1)

/******************************************************************************\
* Coding parameters types.
\******************************************************************************/

/* Per-component coding paramters. */

typedef struct {

	/* The horizontal sampling period. */
	uint_fast8_t sampgrdstepx;

	/* The vertical sampling period. */
	uint_fast8_t sampgrdstepy;

	/* The sample alignment horizontal offset. */
	uint_fast8_t sampgrdsubstepx;

	/* The sample alignment vertical offset. */
	uint_fast8_t sampgrdsubstepy;

	/* The precision of the samples. */
	uint_fast8_t prec;

	/* The signedness of the samples. */
	bool sgnd;

	/* The number of step sizes. */
	uint_fast16_t numstepsizes;

	/* The quantizer step sizes. */
	uint_fast16_t stepsizes[JPC_MAXBANDS];

} jpc_enc_ccp_t;

/* Per-tile coding parameters. */

typedef struct {

	/* The coding mode. */
	bool intmode;

	/* The coding style (i.e., SOP, EPH). */
	uint_fast8_t csty;

	/* The progression order. */
	uint_fast8_t prg;

	/* The multicomponent transform. */
	uint_fast8_t mctid;

	/* The number of layers. */
	uint_fast16_t numlyrs;

	/* The normalized bit rates associated with the various
	  intermediate layers. */
	jpc_fix_t *ilyrrates;

} jpc_enc_tcp_t;

/* Per tile-component coding parameters. */

typedef struct {

	/* The coding style (i.e., explicit precinct sizes). */
	uint_fast8_t csty;

	/* The maximum number of resolution levels allowed. */
	uint_fast8_t maxrlvls;

	/* The exponent for the nominal code block width. */
	uint_fast16_t cblkwidthexpn;

	/* The exponent for the nominal code block height. */
	uint_fast16_t cblkheightexpn;

	/* The code block style parameters (e.g., lazy, terminate all,
	  segmentation symbols, causal, reset probability models). */
	uint_fast8_t cblksty;

	/* The QMFB. */
	uint_fast8_t qmfbid;

	/* The precinct width values. */
	uint_fast16_t prcwidthexpns[JPC_MAXRLVLS];

	/* The precinct height values. */
	uint_fast16_t prcheightexpns[JPC_MAXRLVLS];

	/* The number of guard bits. */
	uint_fast8_t numgbits;

} jpc_enc_tccp_t;

/* Coding parameters. */

typedef struct {

	/* The debug level. */
	int debug;

	/* The horizontal offset from the origin of the reference grid to the
	  left edge of the image area. */
	uint_fast32_t imgareatlx;

	/* The vertical offset from the origin of the reference grid to the
	  top edge of the image area. */
	uint_fast32_t imgareatly;

	/* The horizontal offset from the origin of the reference grid to the
	  right edge of the image area (plus one). */
	uint_fast32_t refgrdwidth;

	/* The vertical offset from the origin of the reference grid to the
	  bottom edge of the image area (plus one). */
	uint_fast32_t refgrdheight;

	/* The horizontal offset from the origin of the tile grid to the
	  origin of the reference grid. */
	uint_fast32_t tilegrdoffx;

	/* The vertical offset from the origin of the tile grid to the
	  origin of the reference grid. */
	uint_fast32_t tilegrdoffy;

	/* 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 number of tiles spanning the image area in the horizontal
	  direction. */
	uint_fast32_t numhtiles;

	/* The number of tiles spanning the image area in the vertical
	  direction. */
	uint_fast32_t numvtiles;

	/* The number of tiles. */
	uint_fast32_t numtiles;

	/* The number of components. */
	uint_fast16_t numcmpts;

	/* The per-component coding parameters. */
	jpc_enc_ccp_t *ccps;

	/* The per-tile coding parameters. */
	jpc_enc_tcp_t tcp;

	/* The per-tile-component coding parameters. */
	jpc_enc_tccp_t tccp;

	/* The target code stream length in bytes. */
	uint_fast32_t totalsize;

	/* The raw (i.e., uncompressed) size of the image in bytes. */
	uint_fast32_t rawsize;

} jpc_enc_cp_t;

/******************************************************************************\
* Encoder class.
\******************************************************************************/

/* Encoder per-coding-pass state information. */

typedef struct {

	/* The starting offset for this pass. */
	int start;

	/* The ending offset for this pass. */
	int end;

	/* The type of data in this pass (i.e., MQ or raw). */
	int type;

	/* Flag indicating that this pass is terminated. */
	int term;

	/* The entropy coder state after coding this pass. */
	jpc_mqencstate_t mqencstate;

	/* The layer to which this pass has been assigned. */
	int lyrno;

	/* The R-D slope for this pass. */
	jpc_flt_t rdslope;

	/* The weighted MSE reduction associated with this pass. */
	jpc_flt_t wmsedec;

	/* The cumulative weighted MSE reduction. */
	jpc_flt_t cumwmsedec;

	/* The normalized MSE reduction. */
	long nmsedec;

} jpc_enc_pass_t;

/* Encoder per-code-block state information. */

typedef struct {

	/* The number of passes. */
	int numpasses;

	/* The per-pass information. */
	jpc_enc_pass_t *passes;

	/* The number of passes encoded so far. */
	int numencpasses;

	/* The number of insignificant MSBs. */
	int numimsbs;

	/* The number of bits used to encode pass data lengths. */
	int numlenbits;

	/* The byte stream for this code block. */
	jas_stream_t *stream;

	/* The entropy encoder. */
	jpc_mqenc_t *mqenc;

	/* The data for this code block. */
	jas_matrix_t *data;

	/* The state for this code block. */
	jas_matrix_t *flags;

	/* The number of bit planes required for this code block. */
	int numbps;

	/* The next pass to be encoded. */
	jpc_enc_pass_t *curpass;

	/* The per-code-block-group state information. */
	struct jpc_enc_prc_s *prc;

	/* The saved current pass. */
	/* This is used by the rate control code. */
	jpc_enc_pass_t *savedcurpass;

	/* The saved length indicator size. */
	/* This is used by the rate control code. */
	int savednumlenbits;

	/* The saved number of encoded passes. */
	/* This is used by the rate control code. */
	int savednumencpasses;

} jpc_enc_cblk_t;

/* Encoder per-code-block-group state information. */

typedef struct jpc_enc_prc_s {

	/* The x-coordinate of the top-left corner of the precinct. */
	uint_fast32_t tlx;

	/* The y-coordinate of the top-left corner of the precinct. */
	uint_fast32_t tly;

	/* The x-coordinate of the bottom-right corner of the precinct
	  (plus one). */
	uint_fast32_t brx;

	/* The y-coordinate of the bottom-right corner of the precinct
	  (plus one). */
	uint_fast32_t bry;

	/* The number of code blocks spanning the precinct in the horizontal
	direction. */
	int numhcblks;

	/* The number of code blocks spanning the precinct in the vertical
	direction. */
	int numvcblks;

	/* The total number of code blocks. */
	int numcblks;

	/* The per-code-block information. */
	jpc_enc_cblk_t *cblks;

	/* The inclusion tag tree. */
	jpc_tagtree_t *incltree;

	/* The insignifcant MSBs tag tree. */
	jpc_tagtree_t *nlibtree;

	/* The per-band information. */
	struct jpc_enc_band_s *band;

	/* The saved inclusion tag tree. */
	/* This is used by rate control. */
	jpc_tagtree_t *savincltree;

	/* The saved leading-insignificant-bit-planes tag tree. */
	/* This is used by rate control. */
	jpc_tagtree_t *savnlibtree;

} jpc_enc_prc_t;

/* Encoder per-band state information. */

typedef struct jpc_enc_band_s {

	/* The per precinct information. */
	jpc_enc_prc_t *prcs;

	/* The coefficient data for this band. */
	jas_matrix_t *data;

	/* The orientation of this band (i.e., LL, LH, HL, or HH). */
	int orient;

	/* The number of bit planes associated with this band. */
	int numbps;

	/* The quantizer step size. */
	jpc_fix_t absstepsize;

	/* The encoded quantizer step size. */
	int stepsize;

	/* The L2 norm of the synthesis basis functions associated with
	  this band.  (The MCT is not considered in this value.) */
	jpc_fix_t synweight;

	/* The analysis gain for this band. */
	int analgain;

	/* The per-resolution-level information. */
	struct jpc_enc_rlvl_s *rlvl;

} jpc_enc_band_t;

/* Encoder per-resolution-level state information. */

typedef struct jpc_enc_rlvl_s {

	/* The x-coordinate of the top-left corner of the tile-component
	  at this resolution. */
	uint_fast32_t tlx;

	/* The y-coordinate of the top-left corner of the tile-component
	  at this resolution. */
	uint_fast32_t tly;

	/* The x-coordinate of the bottom-right corner of the tile-component
	  at this resolution (plus one). */
	uint_fast32_t brx;

	/* The y-coordinate of the bottom-right corner of the tile-component
	  at this resolution (plus one). */
	uint_fast32_t bry;

	/* 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 spanning the resolution level in the
	  horizontal direction. */
	int numhprcs;

	/* The number of precincts spanning the resolution level 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;

	/* The number of bands associated with this resolution level. */
	int numbands;

	/* The per-band information. */
	jpc_enc_band_t *bands;

	/* The parent tile-component. */
	struct jpc_enc_tcmpt_s *tcmpt;

} jpc_enc_rlvl_t;

/* Encoder per-tile-component state information. */

typedef struct jpc_enc_tcmpt_s {

	/* The number of resolution levels. */
	int numrlvls;

	/* The per-resolution-level information. */
	jpc_enc_rlvl_t *rlvls;

	/* The tile-component data. */
	jas_matrix_t *data;

	/* The QMFB. */
	int qmfbid;

	/* The number of bands. */
	int numbands;

	/* The TSFB. */
	jpc_tsfb_t *tsfb;

	/* The synthesis energy weight (for the MCT). */
	jpc_fix_t synweight;

	/* The precinct width exponents. */
	int prcwidthexpns[JPC_MAXRLVLS];

	/* The precinct height exponents. */
	int prcheightexpns[JPC_MAXRLVLS];

	/* The code block width exponent. */
	int cblkwidthexpn;

	/* The code block height exponent. */
	int cblkheightexpn;

	/* Coding style (i.e., explicit precinct sizes). */
	int csty;

	/* Code block style. */
	int cblksty;

	/* The number of quantizer step sizes. */
	int numstepsizes;

	/* The encoded quantizer step sizes. */
	uint_fast16_t stepsizes[JPC_MAXBANDS];

	/* The parent tile. */
	struct jpc_enc_tile_s *tile;

} jpc_enc_tcmpt_t;

/* Encoder per-tile state information. */

typedef struct jpc_enc_tile_s {

	/* The tile number. */
	uint_fast32_t tileno;

	/* The x-coordinate of the top-left corner of the tile measured with
	  respect to the reference grid. */
	uint_fast32_t tlx;

	/* The y-coordinate of the top-left corner of the tile measured with
	  respect to the reference grid. */
	uint_fast32_t tly;

	/* The x-coordinate of the bottom-right corner of the tile measured
	  with respect to the reference grid (plus one). */
	uint_fast32_t brx;

	/* The y-coordinate of the bottom-right corner of the tile measured
	  with respect to the reference grid (plus one). */
	uint_fast32_t bry;

	/* The coding style. */
	uint_fast8_t csty;

	/* The progression order. */
	uint_fast8_t prg;

	/* The number of layers. */
	int numlyrs;

	/* The MCT to employ (if any). */
	uint_fast8_t mctid;

	/* The packet iterator (used to determine the order of packet
	  generation). */
	jpc_pi_t *pi;

	/* The coding mode (i.e., integer or real). */
	bool intmode;

	/* The number of bytes to allocate to the various layers. */
	uint_fast32_t *lyrsizes;

	/* The number of tile-components. */
	int numtcmpts;

	/* The per tile-component information. */
	jpc_enc_tcmpt_t *tcmpts;

	/* The raw (i.e., uncompressed) size of this tile. */
	uint_fast32_t rawsize;

} jpc_enc_tile_t;

/* Encoder class. */

typedef struct jpc_enc_s {

	/* The image being encoded. */
	jas_image_t *image;

	/* The output stream. */
	jas_stream_t *out;

	/* The coding parameters. */
	jpc_enc_cp_t *cp;

	/* The tile currently being processed. */
	jpc_enc_tile_t *curtile;

	/* The code stream state. */
	jpc_cstate_t *cstate;

	/* The number of bytes output so far. */
	uint_fast32_t len;

	/* The number of bytes available for the main body of the code stream. */
	/* This is used for rate allocation purposes. */
	uint_fast32_t mainbodysize;

	/* The marker segment currently being processed. */
	/* This member is a convenience for making cleanup easier. */
	jpc_ms_t *mrk;

	/* The stream used to temporarily hold tile-part data. */
	jas_stream_t *tmpstream;

} jpc_enc_t;

#endif

--- NEW FILE: jpc_util.h ---
/*
 * Copyright (c) 2001-2002 Michael David Adams.
 * All rights reserved.
 */

/* __START_OF_JASPER_LICENSE__
 * 
 * JasPer License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the
 * following conditions:
 * 
 * 1.  The above copyright notices and this permission notice (which
 * includes the disclaimer below) shall be included in all copies or
 * substantial portions of the Software.
 * 
 * 2.  The name of a copyright holder shall not be used to endorse or
 * promote products derived from the Software without specific prior
 * written permission.
 * 
 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
 * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
 * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
 * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
 * 
 * __END_OF_JASPER_LICENSE__
 */

#ifndef JPC_UTIL_H
#define JPC_UTIL_H

/* Parse a comma separated list of real numbers into an array of doubles. */
int jpc_atoaf(char *s, int *numvalues, double **values);

/* Upsample a sequence. */
jas_seq_t *jpc_seq_upsample(jas_seq_t *seq, int n);

/* Convolve two sequences. */
jas_seq_t *jpc_seq_conv(jas_seq_t *seq0, jas_seq_t *seq1);

/* Compute the norm of a sequence. */
jpc_fix_t jpc_seq_norm(jas_seq_t *x);

#endif

--- NEW FILE: jpc_tsfb.h ---
/*
 * 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 License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the
 * following conditions:
 * 
 * 1.  The above copyright notices and this permission notice (which
 * includes the disclaimer below) shall be included in all copies or
 * substantial portions of the Software.
 * 
 * 2.  The name of a copyright holder shall not be used to endorse or
 * promote products derived from the Software without specific prior
 * written permission.
 * 
 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
 * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
 * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
 * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
 * 
 * __END_OF_JASPER_LICENSE__
 */

/*
 * Tree-Structured Filter Bank (TSFB) Library
 *
 * $Id: jpc_tsfb.h,v 1.1 2006/05/12 21:26:38 spacy51 Exp $
 */

#ifndef JPC_TSFB_H
#define JPC_TSFB_H

/******************************************************************************\
* Includes.
\******************************************************************************/

#include "jasper/jas_seq.h"

#include "jpc_fix.h"
#include "jpc_qmfb.h"

/******************************************************************************\
* Constants.
\******************************************************************************/

#define	JPC_TSFB_MAXBANDS	(JPC_TSFB_MAXDEPTH * 3 + 1)
#define	JPC_TSFB_MAXDEPTH	32
#define	JPC_TSFB_RITIMODE	JPC_QMFB1D_RITIMODE

#define	JPC_TSFB_MAXBANDSPERNODE	(JPC_QMFB1D_MAXCHANS * JPC_QMFB1D_MAXCHANS)

#define	JPC_TSFB_PRUNEVERT	0x01
#define	JPC_TSFB_PRUNEHORZ	0x02

#define JPC_TSFB_LL	0
#define JPC_TSFB_LH	1
#define JPC_TSFB_HL	2
#define JPC_TSFB_HH	3

/******************************************************************************\
* Types.
\******************************************************************************/

typedef struct {

	int xstart;
	int ystart;
	int xend;
	int yend;
	int locxstart;
	int locystart;
	int locxend;
	int locyend;

} jpc_tsfbnodeband_t;

typedef struct jpc_tsfbnode_s {

	int numhchans;
	int numvchans;
	jpc_qmfb1d_t *hqmfb;
	jpc_qmfb1d_t *vqmfb;
	int maxchildren;
	int numchildren;
	struct jpc_tsfbnode_s *children[JPC_TSFB_MAXBANDSPERNODE];
	struct jpc_tsfbnode_s *parent;

} jpc_tsfbnode_t;

typedef struct {
	jpc_tsfbnode_t *root;
} jpc_tsfb_t;

typedef struct {
	int xstart;
	int ystart;
	int xend;
	int yend;
	int orient;
	int locxstart;
	int locystart;
	int locxend;
	int locyend;
	jpc_fix_t synenergywt;
} jpc_tsfb_band_t;

/******************************************************************************\
* Functions.
\******************************************************************************/

/* Create a TSFB. */
jpc_tsfb_t *jpc_cod_gettsfb(int qmfbid, int numlevels);

/* Create a wavelet-type TSFB with the specified horizontal and vertical
  QMFBs. */
jpc_tsfb_t *jpc_tsfb_wavelet(jpc_qmfb1d_t *hqmfb, jpc_qmfb1d_t *vqmfb,
  int numdlvls);

/* Destroy a TSFB. */
void jpc_tsfb_destroy(jpc_tsfb_t *tsfb);

/* Perform analysis. */
void jpc_tsfb_analyze(jpc_tsfb_t *tsfb, int flags, jas_seq2d_t *x);

/* Perform synthesis. */
void jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, int flags, jas_seq2d_t *x);

/* Get band information for a TSFB. */
int jpc_tsfb_getbands(jpc_tsfb_t *tsfb, uint_fast32_t xstart,
  uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend,
  jpc_tsfb_band_t *bands);

#endif

--- NEW FILE: jpc_t1dec.c ---
/*
 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
 *   British Columbia.
 * Copyright (c) 2001-2003 Michael David Adams.
 * All rights reserved.
 */

/* __START_OF_JASPER_LICENSE__
 * 
 * JasPer License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the
 * following conditions:
 * 
 * 1.  The above copyright notices and this permission notice (which
 * includes the disclaimer below) shall be included in all copies or
 * substantial portions of the Software.
 * 
 * 2.  The name of a copyright holder shall not be used to endorse or
 * promote products derived from the Software without specific prior
 * written permission.
 * 
 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
 * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
 * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
 * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
 * 
 * __END_OF_JASPER_LICENSE__
 */

/*
 * Tier 1 Decoder
 *
 * $Id: jpc_t1dec.c,v 1.1 2006/05/12 21:26:38 spacy51 Exp $
 */

/******************************************************************************\
* Includes.
\******************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

#include "jasper/jas_fix.h"
#include "jasper/jas_stream.h"
#include "jasper/jas_math.h"

#include "jpc_bs.h"
#include "jpc_mqdec.h"
#include "jpc_t1dec.h"
#include "jpc_t1cod.h"
#include "jpc_dec.h"

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

static int jpc_dec_decodecblk(jpc_dec_t *dec, jpc_dec_tile_t *tile, jpc_dec_tcomp_t *tcomp, jpc_dec_band_t *band,
  jpc_dec_cblk_t *cblk, int dopartial, int maxlyrs);
static int dec_sigpass(jpc_dec_t *dec, jpc_mqdec_t *mqdec, int bitpos, int orient,
  int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data);
static int dec_rawsigpass(jpc_dec_t *dec, jpc_bitstream_t *in, int bitpos,
  int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data);
static int dec_refpass(jpc_dec_t *dec, jpc_mqdec_t *mqdec, int bitpos, int vcausalflag,
  jas_matrix_t *flags, jas_matrix_t *data);
static int dec_rawrefpass(jpc_dec_t *dec, jpc_bitstream_t *in, int bitpos,
  int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data);
static int dec_clnpass(jpc_dec_t *dec, jpc_mqdec_t *mqdec, int bitpos, int orient,
  int vcausalflag, int segsymflag, jas_matrix_t *flags, jas_matrix_t *data);

#if defined(DEBUG)
static long t1dec_cnt = 0;
#endif

#if !defined(DEBUG)
#define	JPC_T1D_GETBIT(mqdec, v, passtypename, symtypename) \
	((v) = jpc_mqdec_getbit(mqdec))
#else
#define	JPC_T1D_GETBIT(mqdec, v, passtypename, symtypename) \
{ \
	(v) = jpc_mqdec_getbit(mqdec); \
	if (jas_getdbglevel() >= 100) { \
		fprintf(stderr, "index = %ld; passtype = %s; symtype = %s; sym = %d\n", t1dec_cnt, passtypename, symtypename, v); \
		++t1dec_cnt; \
	} \
}
#endif
#define	JPC_T1D_GETBITNOSKEW(mqdec, v, passtypename, symtypename) \
	JPC_T1D_GETBIT(mqdec, v, passtypename, symtypename)

#if !defined(DEBUG)
#define	JPC_T1D_RAWGETBIT(bitstream, v, passtypename, symtypename) \
	((v) = jpc_bitstream_getbit(bitstream))
#else
#define	JPC_T1D_RAWGETBIT(bitstream, v, passtypename, symtypename) \
{ \
	(v) = jpc_bitstream_getbit(bitstream); \
	if (jas_getdbglevel() >= 100) { \
		fprintf(stderr, "index = %ld; passtype = %s; symtype = %s; sym = %d\n", t1dec_cnt, passtypename, symtypename, v); \
		++t1dec_cnt; \
	} \
}
#endif

/******************************************************************************\
* Code.
\******************************************************************************/

int jpc_dec_decodecblks(jpc_dec_t *dec, jpc_dec_tile_t *tile)
{
	jpc_dec_tcomp_t *tcomp;
	int compcnt;
	jpc_dec_rlvl_t *rlvl;
	int rlvlcnt;
	jpc_dec_band_t *band;
	int bandcnt;
	jpc_dec_prc_t *prc;
	int prccnt;
	jpc_dec_cblk_t *cblk;
	int cblkcnt;

	for (compcnt = dec->numcomps, tcomp = tile->tcomps; compcnt > 0;
	  --compcnt, ++tcomp) {
		for (rlvlcnt = tcomp->numrlvls, rlvl = tcomp->rlvls;
		  rlvlcnt > 0; --rlvlcnt, ++rlvl) {
			if (!rlvl->bands) {
				continue;
			}
			for (bandcnt = rlvl->numbands, band = rlvl->bands;
			  bandcnt > 0; --bandcnt, ++band) {
				if (!band->data) {
					continue;
				}
				for (prccnt = rlvl->numprcs, prc = band->prcs;
				  prccnt > 0; --prccnt, ++prc) {
					if (!prc->cblks) {
						continue;
					}
					for (cblkcnt = prc->numcblks,
					  cblk = prc->cblks; cblkcnt > 0;
					  --cblkcnt, ++cblk) {
						if (jpc_dec_decodecblk(dec, tile, tcomp,
						  band, cblk, 1, JPC_MAXLYRS)) {
							return -1;
						}
					}
				}

			}
		}
	}

	return 0;
}

static int jpc_dec_decodecblk(jpc_dec_t *dec, jpc_dec_tile_t *tile, jpc_dec_tcomp_t *tcomp, jpc_dec_band_t *band,
  jpc_dec_cblk_t *cblk, int dopartial, int maxlyrs)
{
	jpc_dec_seg_t *seg;
	int i;
	int bpno;
	int passtype;
	int ret;
	int compno;
	int filldata;
	int fillmask;
	jpc_dec_ccp_t *ccp;

	compno = tcomp - tile->tcomps;

	if (!cblk->flags) {
		/* Note: matrix is assumed to be zeroed */
		if (!(cblk->flags = jas_matrix_create(jas_matrix_numrows(cblk->data) +
		  2, jas_matrix_numcols(cblk->data) + 2))) {
			return -1;
		}
	}

	seg = cblk->segs.head;
	while (seg && (seg != cblk->curseg || dopartial) && (maxlyrs < 0 ||
	  seg->lyrno < maxlyrs)) {
		assert(seg->numpasses >= seg->maxpasses || dopartial);
		assert(seg->stream);
		jas_stream_rewind(seg->stream);
		jas_stream_setrwcount(seg->stream, 0);
		if (seg->type == JPC_SEG_MQ) {
			if (!cblk->mqdec) {
				if (!(cblk->mqdec = jpc_mqdec_create(JPC_NUMCTXS, 0))) {
					return -1;
				}
				jpc_mqdec_setctxs(cblk->mqdec, JPC_NUMCTXS, jpc_mqctxs);
			}
			jpc_mqdec_setinput(cblk->mqdec, seg->stream);
			jpc_mqdec_init(cblk->mqdec);
		} else {
			assert(seg->type == JPC_SEG_RAW);
			if (!cblk->nulldec) {
				if (!(cblk->nulldec = jpc_bitstream_sopen(seg->stream, "r"))) {
					assert(0);
				}
			}
		}


		for (i = 0; i < seg->numpasses; ++i) {
			if (cblk->numimsbs > band->numbps) {
				ccp = &tile->cp->ccps[compno];
				if (ccp->roishift <= 0) {
					fprintf(stderr, "warning: corrupt code stream\n");
				} else {
					if (cblk->numimsbs < ccp->roishift - band->numbps) {
						fprintf(stderr, "warning: corrupt code stream\n");
					}
				}
			}
			bpno = band->roishift + band->numbps - 1 - (cblk->numimsbs +
			  (seg->passno + i - cblk->firstpassno + 2) / 3);
if (bpno < 0) {
	goto premature_exit;
}
#if 1
			passtype = (seg->passno + i + 2) % 3;
#else
			passtype = JPC_PASSTYPE(seg->passno + i + 2);
#endif
			assert(bpno >= 0 && bpno < 31);
			switch (passtype) {
			case JPC_SIGPASS:
				ret = (seg->type == JPC_SEG_MQ) ? dec_sigpass(dec,
				  cblk->mqdec, bpno, band->orient,
				  (tile->cp->ccps[compno].cblkctx & JPC_COX_VSC) != 0,
				  cblk->flags, cblk->data) :
				  dec_rawsigpass(dec, cblk->nulldec, bpno,
				  (tile->cp->ccps[compno].cblkctx & JPC_COX_VSC) != 0,
				  cblk->flags, cblk->data);
				break;
			case JPC_REFPASS:
				ret = (seg->type == JPC_SEG_MQ) ?
				  dec_refpass(dec, cblk->mqdec, bpno,
				  (tile->cp->ccps[compno].cblkctx & JPC_COX_VSC) != 0,
				  cblk->flags, cblk->data) :
				  dec_rawrefpass(dec, cblk->nulldec, bpno,
				  (tile->cp->ccps[compno].cblkctx & JPC_COX_VSC) != 0,
				  cblk->flags, cblk->data);
				break;
			case JPC_CLNPASS:
				assert(seg->type == JPC_SEG_MQ);
				ret = dec_clnpass(dec, cblk->mqdec, bpno,
				  band->orient, (tile->cp->ccps[compno].cblkctx &
				  JPC_COX_VSC) != 0, (tile->cp->ccps[compno].cblkctx &
				  JPC_COX_SEGSYM) != 0, cblk->flags,
				  cblk->data);
				break;
			default:
				ret = -1;
				break;
			}
			/* Do we need to reset after each coding pass? */
			if (tile->cp->ccps[compno].cblkctx & JPC_COX_RESET) {
				jpc_mqdec_setctxs(cblk->mqdec, JPC_NUMCTXS, jpc_mqctxs);
			}

			if (ret) {
				fprintf(stderr, "coding pass failed passtype=%d segtype=%d\n", passtype, seg->type);
				return -1;
			}

		}

		if (seg->type == JPC_SEG_MQ) {
/* Note: dont destroy mq decoder because context info will be lost */
		} else {
			assert(seg->type == JPC_SEG_RAW);
			if (tile->cp->ccps[compno].cblkctx & JPC_COX_PTERM) {
				fillmask = 0x7f;
				filldata = 0x2a;
			} else {
				fillmask = 0;
				filldata = 0;
			}
			if ((ret = jpc_bitstream_inalign(cblk->nulldec, fillmask,
			  filldata)) < 0) {
				return -1;
			} else if (ret > 0) {
				fprintf(stderr, "warning: bad termination pattern detected\n");
			}
			jpc_bitstream_close(cblk->nulldec);
			cblk->nulldec = 0;
		}

		cblk->curseg = seg->next;
		jpc_seglist_remove(&cblk->segs, seg);
		jpc_seg_destroy(seg);
		seg = cblk->curseg;
	}

	assert(dopartial ? (!cblk->curseg) : 1);

premature_exit:
	return 0;
}

/******************************************************************************\
* Code for significance pass.
\******************************************************************************/

#define	jpc_sigpass_step(fp, frowstep, dp, bitpos, oneplushalf, orient, mqdec, vcausalflag) \
{ \
	int f; \
	int v; \
	f = *(fp); \
	if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
		jpc_mqdec_setcurctx((mqdec), JPC_GETZCCTXNO(f, (orient))); \
		JPC_T1D_GETBIT((mqdec), v, "SIG", "ZC"); \
		if (v) { \
			jpc_mqdec_setcurctx((mqdec), JPC_GETSCCTXNO(f)); \
			JPC_T1D_GETBIT((mqdec), v, "SIG", "SC"); \
			v ^= JPC_GETSPB(f); \
			JPC_UPDATEFLAGS4((fp), (frowstep), v, (vcausalflag)); \
			*(fp) |= JPC_SIG; \
			*(dp) = (v) ? (-(oneplushalf)) : (oneplushalf); \
		} \
		*(fp) |= JPC_VISIT; \
	} \
}

static int dec_sigpass(jpc_dec_t *dec, register jpc_mqdec_t *mqdec, int bitpos, int orient,
  int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data)
{
	int i;
	int j;
	int one;
	int half;
	int oneplushalf;
	int vscanlen;
	int width;
	int height;
	jpc_fix_t *fp;
	int frowstep;
	int fstripestep;
	jpc_fix_t *fstripestart;
	jpc_fix_t *fvscanstart;
	jpc_fix_t *dp;
	int drowstep;
	int dstripestep;
	jpc_fix_t *dstripestart;
	jpc_fix_t *dvscanstart;
	int k;

	/* Avoid compiler warning about unused parameters. */
	dec = 0;

	width = jas_matrix_numcols(data);
	height = jas_matrix_numrows(data);
	frowstep = jas_matrix_rowstep(flags);
	drowstep = jas_matrix_rowstep(data);
	fstripestep = frowstep << 2;
	dstripestep = drowstep << 2;

	one = 1 << bitpos;
	half = one >> 1;
	oneplushalf = one | half;

	fstripestart = jas_matrix_getref(flags, 1, 1);
	dstripestart = jas_matrix_getref(data, 0, 0);
	for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
	  dstripestart += dstripestep) {
		fvscanstart = fstripestart;
		dvscanstart = dstripestart;
		vscanlen = JAS_MIN(i, 4);
		for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
			fp = fvscanstart;
			dp = dvscanstart;
			k = vscanlen;

			/* Process first sample in vertical scan. */
			jpc_sigpass_step(fp, frowstep, dp, bitpos, oneplushalf,
			  orient, mqdec, vcausalflag);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process second sample in vertical scan. */
			jpc_sigpass_step(fp, frowstep, dp, bitpos, oneplushalf,
			  orient, mqdec, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process third sample in vertical scan. */
			jpc_sigpass_step(fp, frowstep, dp, bitpos, oneplushalf,
			  orient, mqdec, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process fourth sample in vertical scan. */
			jpc_sigpass_step(fp, frowstep, dp, bitpos, oneplushalf,
			  orient, mqdec, 0);
		}
	}
	return 0;
}

#define	jpc_rawsigpass_step(fp, frowstep, dp, oneplushalf, in, vcausalflag) \
{ \
	jpc_fix_t f = *(fp); \
	jpc_fix_t v; \
	if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
		JPC_T1D_RAWGETBIT(in, v, "SIG", "ZC"); \
		if (v < 0) { \
			return -1; \
		} \
		if (v) { \
			JPC_T1D_RAWGETBIT(in, v, "SIG", "SC"); \
			if (v < 0) { \
				return -1; \
			} \
			JPC_UPDATEFLAGS4((fp), (frowstep), v, (vcausalflag)); \
			*(fp) |= JPC_SIG; \
			*(dp) = v ? (-oneplushalf) : (oneplushalf); \
		} \
		*(fp) |= JPC_VISIT; \
	} \
}

static int dec_rawsigpass(jpc_dec_t *dec, jpc_bitstream_t *in, int bitpos, int vcausalflag,
  jas_matrix_t *flags, jas_matrix_t *data)
{
	int i;
	int j;
	int k;
	int one;
	int half;
	int oneplushalf;
	int vscanlen;
	int width;
	int height;
	jpc_fix_t *fp;
	int frowstep;
	int fstripestep;
	jpc_fix_t *fstripestart;
	jpc_fix_t *fvscanstart;
	jpc_fix_t *dp;
	int drowstep;
	int dstripestep;
	jpc_fix_t *dstripestart;
	jpc_fix_t *dvscanstart;

	/* Avoid compiler warning about unused parameters. */
	dec = 0;

	width = jas_matrix_numcols(data);
	height = jas_matrix_numrows(data);
	frowstep = jas_matrix_rowstep(flags);
	drowstep = jas_matrix_rowstep(data);
	fstripestep = frowstep << 2;
	dstripestep = drowstep << 2;

	one = 1 << bitpos;
	half = one >> 1;
	oneplushalf = one | half;

	fstripestart = jas_matrix_getref(flags, 1, 1);
	dstripestart = jas_matrix_getref(data, 0, 0);
	for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
	  dstripestart += dstripestep) {
		fvscanstart = fstripestart;
		dvscanstart = dstripestart;
		vscanlen = JAS_MIN(i, 4);
		for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
			fp = fvscanstart;
			dp = dvscanstart;
			k = vscanlen;

			/* Process first sample in vertical scan. */
			jpc_rawsigpass_step(fp, frowstep, dp, oneplushalf,
			  in, vcausalflag);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process second sample in vertical scan. */
			jpc_rawsigpass_step(fp, frowstep, dp, oneplushalf,
			  in, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process third sample in vertical scan. */
			jpc_rawsigpass_step(fp, frowstep, dp, oneplushalf,
			  in, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process fourth sample in vertical scan. */
			jpc_rawsigpass_step(fp, frowstep, dp, oneplushalf,
			  in, 0);

		}
	}
	return 0;
}

/******************************************************************************\
* Code for refinement pass.
\******************************************************************************/

#define	jpc_refpass_step(fp, dp, poshalf, neghalf, mqdec, vcausalflag) \
{ \
	int v; \
	int t; \
	if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
		jpc_mqdec_setcurctx((mqdec), JPC_GETMAGCTXNO(*(fp))); \
		JPC_T1D_GETBITNOSKEW((mqdec), v, "REF", "MR"); \
		t = (v ? (poshalf) : (neghalf)); \
		*(dp) += (*(dp) < 0) ? (-t) : t; \
		*(fp) |= JPC_REFINE; \
	} \
}

static int dec_refpass(jpc_dec_t *dec, register jpc_mqdec_t *mqdec, int bitpos,
  int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data)
{
	int i;
	int j;
	int vscanlen;
	int width;
	int height;
	int one;
	int poshalf;
	int neghalf;
	jpc_fix_t *fp;
	int frowstep;
	int fstripestep;
	jpc_fix_t *fstripestart;
	jpc_fix_t *fvscanstart;
	jpc_fix_t *dp;
	int drowstep;
	int dstripestep;
	jpc_fix_t *dstripestart;
	jpc_fix_t *dvscanstart;
	int k;

	/* Avoid compiler warning about unused parameters. */
	dec = 0;
	vcausalflag = 0;

	width = jas_matrix_numcols(data);
	height = jas_matrix_numrows(data);
	frowstep = jas_matrix_rowstep(flags);
	drowstep = jas_matrix_rowstep(data);
	fstripestep = frowstep << 2;
	dstripestep = drowstep << 2;

	one = 1 << bitpos;
	poshalf = one >> 1;
	neghalf = (bitpos > 0) ? (-poshalf) : (-1);

	fstripestart = jas_matrix_getref(flags, 1, 1);
	dstripestart = jas_matrix_getref(data, 0, 0);
	for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
	  dstripestart += dstripestep) {
		fvscanstart = fstripestart;
		dvscanstart = dstripestart;
		vscanlen = JAS_MIN(i, 4);
		for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
			fp = fvscanstart;
			dp = dvscanstart;
			k = vscanlen;

			/* Process first sample in vertical scan. */
			jpc_refpass_step(fp, dp, poshalf, neghalf, mqdec,
			  vcausalflag);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process second sample in vertical scan. */
			jpc_refpass_step(fp, dp, poshalf, neghalf, mqdec, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process third sample in vertical scan. */
			jpc_refpass_step(fp, dp, poshalf, neghalf, mqdec, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process fourth sample in vertical scan. */
			jpc_refpass_step(fp, dp, poshalf, neghalf, mqdec, 0);
		}
	}

	return 0;
}

#define	jpc_rawrefpass_step(fp, dp, poshalf, neghalf, in, vcausalflag) \
{ \
	jpc_fix_t v; \
	jpc_fix_t t; \
	if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
		JPC_T1D_RAWGETBIT(in, v, "REF", "MAGREF"); \
		if (v < 0) { \
			return -1; \
		} \
		t = (v ? poshalf : neghalf); \
		*(dp) += (*(dp) < 0) ? (-t) : t; \
		*(fp) |= JPC_REFINE; \
	} \
}

static int dec_rawrefpass(jpc_dec_t *dec, jpc_bitstream_t *in, int bitpos, int vcausalflag,
  jas_matrix_t *flags, jas_matrix_t *data)
{
	int i;
	int j;
	int k;
	int vscanlen;
	int width;
	int height;
	int one;
	int poshalf;
	int neghalf;
	jpc_fix_t *fp;
	int frowstep;
	int fstripestep;
	jpc_fix_t *fstripestart;
	jpc_fix_t *fvscanstart;
	jpc_fix_t *dp;
	int drowstep;
	int dstripestep;
	jpc_fix_t *dstripestart;
	jpc_fix_t *dvscanstart;

	/* Avoid compiler warning about unused parameters. */
	dec = 0;
	vcausalflag = 0;

	width = jas_matrix_numcols(data);
	height = jas_matrix_numrows(data);
	frowstep = jas_matrix_rowstep(flags);
	drowstep = jas_matrix_rowstep(data);
	fstripestep = frowstep << 2;
	dstripestep = drowstep << 2;

	one = 1 << bitpos;
	poshalf = one >> 1;
	neghalf = (bitpos > 0) ? (-poshalf) : (-1);

	fstripestart = jas_matrix_getref(flags, 1, 1);
	dstripestart = jas_matrix_getref(data, 0, 0);
	for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
	  dstripestart += dstripestep) {
		fvscanstart = fstripestart;
		dvscanstart = dstripestart;
		vscanlen = JAS_MIN(i, 4);
		for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
			fp = fvscanstart;
			dp = dvscanstart;
			k = vscanlen;

			/* Process first sample in vertical scan. */
			jpc_rawrefpass_step(fp, dp, poshalf, neghalf, in,
			  vcausalflag);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process second sample in vertical scan. */
			jpc_rawrefpass_step(fp, dp, poshalf, neghalf, in, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process third sample in vertical scan. */
			jpc_rawrefpass_step(fp, dp, poshalf, neghalf, in, 0);
			if (--k <= 0) {
				continue;
			}
			fp += frowstep;
			dp += drowstep;

			/* Process fourth sample in vertical scan. */
			jpc_rawrefpass_step(fp, dp, poshalf, neghalf, in, 0);
		}
	}
	return 0;
}

/******************************************************************************\
* Code for cleanup pass.
\******************************************************************************/

#define	jpc_clnpass_step(f, fp, frowstep, dp, oneplushalf, orient, mqdec, flabel, plabel, vcausalflag) \
{ \
	int v; \
flabel \
	if (!((f) & (JPC_SIG | JPC_VISIT))) { \
		jpc_mqdec_setcurctx((mqdec), JPC_GETZCCTXNO((f), (orient))); \
		JPC_T1D_GETBIT((mqdec), v, "CLN", "ZC"); \
		if (v) { \
plabel \
			/* Coefficient is significant. */ \
			jpc_mqdec_setcurctx((mqdec), JPC_GETSCCTXNO(f)); \
			JPC_T1D_GETBIT((mqdec), v, "CLN", "SC"); \
			v ^= JPC_GETSPB(f); \
			*(dp) = (v) ? (-(oneplushalf)) : (oneplushalf); \
			JPC_UPDATEFLAGS4((fp), (frowstep), v, (vcausalflag)); \
			*(fp) |= JPC_SIG; \
		} \
	} \
	/* XXX - Is this correct?  Can aggregation cause some VISIT bits not to be reset?  Check. */ \
	*(fp) &= ~JPC_VISIT; \
}

static int dec_clnpass(jpc_dec_t *dec, register jpc_mqdec_t *mqdec, int bitpos, int orient,
  int vcausalflag, int segsymflag, jas_matrix_t *flags, jas_matrix_t *data)
{
	int i;
	int j;
	int k;
	int vscanlen;
	int v;
	int half;
	int runlen;
	int f;
	int width;
	int height;
	int one;
	int oneplushalf;

	jpc_fix_t *fp;
	int frowstep;
	int fstripestep;
	jpc_fix_t *fstripestart;
	jpc_fix_t *fvscanstart;

	jpc_fix_t *dp;
	int drowstep;
	int dstripestep;
	jpc_fix_t *dstripestart;
	jpc_fix_t *dvscanstart;

	/* Avoid compiler warning about unused parameters. */
	dec = 0;

	one = 1 << bitpos;
	half = one >> 1;
	oneplushalf = one | half;

	width = jas_matrix_numcols(data);
	height = jas_matrix_numrows(data);

	frowstep = jas_matrix_rowstep(flags);
	drowstep = jas_matrix_rowstep(data);
	fstripestep = frowstep << 2;
	dstripestep = drowstep << 2;

	fstripestart = jas_matrix_getref(flags, 1, 1);
	dstripestart = jas_matrix_getref(data, 0, 0);
	for (i = 0; i < height; i += 4, fstripestart += fstripestep,
	  dstripestart += dstripestep) {
		fvscanstart = fstripestart;
		dvscanstart = dstripestart;
		vscanlen = JAS_MIN(4, height - i);
		for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
			fp = fvscanstart;
			if (vscanlen >= 4 && (!((*fp) & (JPC_SIG | JPC_VISIT |
			  JPC_OTHSIGMSK))) && (fp += frowstep, !((*fp) & (JPC_SIG |
			  JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep, !((*fp) &
			  (JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep,
			  !((*fp) & (JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK)))) {

				jpc_mqdec_setcurctx(mqdec, JPC_AGGCTXNO);
				JPC_T1D_GETBIT(mqdec, v, "CLN", "AGG");
				if (!v) {
					continue;
				}
				jpc_mqdec_setcurctx(mqdec, JPC_UCTXNO);
				JPC_T1D_GETBITNOSKEW(mqdec, v, "CLN", "RL");
				runlen = v;
				JPC_T1D_GETBITNOSKEW(mqdec, v, "CLN", "RL");
				runlen = (runlen << 1) | v;
				f = *(fp = fvscanstart + frowstep * runle...
 
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