ref: 7cdf839293bf3c0b5c3f52d368635156530ddf85
dir: /jpc_t2cod.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) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* 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-2 Coding Library
*
* $Id$
*/
#include "jpc_t2cod.h"
#include "jpc_cs.h"
#include "jpc_math.h"
#include "jasper/jas_math.h"
#include "jasper/jas_malloc.h"
static int jpc_pi_nextlrcp(jpc_pi_t *pi);
static int jpc_pi_nextrlcp(jpc_pi_t *pi);
static int jpc_pi_nextrpcl(jpc_pi_t *pi);
static int jpc_pi_nextpcrl(jpc_pi_t *pi);
static int jpc_pi_nextcprl(jpc_pi_t *pi);
int jpc_pi_next(jpc_pi_t *pi)
{
int ret;
for (;;) {
pi->valid = false;
if (!pi->pchg) {
++pi->pchgno;
pi->compno = 0;
pi->rlvlno = 0;
pi->prcno = 0;
pi->lyrno = 0;
pi->prgvolfirst = true;
if ((unsigned)pi->pchgno < jpc_pchglist_numpchgs(pi->pchglist)) {
pi->pchg = jpc_pchglist_get(pi->pchglist, pi->pchgno);
} else if ((unsigned)pi->pchgno == jpc_pchglist_numpchgs(pi->pchglist)) {
pi->pchg = &pi->defaultpchg;
} else {
return 1;
}
}
const jpc_pchg_t *pchg = pi->pchg;
switch (pchg->prgord) {
case JPC_COD_LRCPPRG:
ret = jpc_pi_nextlrcp(pi);
break;
case JPC_COD_RLCPPRG:
ret = jpc_pi_nextrlcp(pi);
break;
case JPC_COD_RPCLPRG:
ret = jpc_pi_nextrpcl(pi);
break;
case JPC_COD_PCRLPRG:
ret = jpc_pi_nextpcrl(pi);
break;
case JPC_COD_CPRLPRG:
ret = jpc_pi_nextcprl(pi);
break;
default:
ret = -1;
break;
}
if (!ret) {
pi->valid = true;
++pi->pktno;
return 0;
}
pi->pchg = 0;
}
}
static int jpc_pi_nextlrcp(register jpc_pi_t *pi)
{
unsigned *prclyrno;
const jpc_pchg_t *pchg = pi->pchg;
if (!pi->prgvolfirst) {
prclyrno = &pi->pirlvl->prclyrnos[pi->prcno];
goto skip;
} else {
pi->prgvolfirst = false;
}
for (pi->lyrno = 0; pi->lyrno < pi->numlyrs && pi->lyrno <
pchg->lyrnoend; ++pi->lyrno) {
for (pi->rlvlno = pchg->rlvlnostart; pi->rlvlno < pi->maxrlvls &&
pi->rlvlno < pchg->rlvlnoend; ++pi->rlvlno) {
for (pi->compno = pchg->compnostart, pi->picomp =
&pi->picomps[pi->compno]; pi->compno < pi->numcomps
&& pi->compno < pchg->compnoend; ++pi->compno,
++pi->picomp) {
if (pi->rlvlno >= pi->picomp->numrlvls) {
continue;
}
pi->pirlvl = &pi->picomp->pirlvls[pi->rlvlno];
for (pi->prcno = 0, prclyrno =
pi->pirlvl->prclyrnos; pi->prcno <
pi->pirlvl->numprcs; ++pi->prcno,
++prclyrno) {
if (pi->lyrno >= *prclyrno) {
*prclyrno = pi->lyrno;
++(*prclyrno);
return 0;
}
skip:
;
}
}
}
}
return 1;
}
static int jpc_pi_nextrlcp(register jpc_pi_t *pi)
{
unsigned *prclyrno;
const jpc_pchg_t *pchg = pi->pchg;
if (!pi->prgvolfirst) {
assert(pi->prcno < pi->pirlvl->numprcs);
prclyrno = &pi->pirlvl->prclyrnos[pi->prcno];
goto skip;
} else {
pi->prgvolfirst = 0;
}
for (pi->rlvlno = pchg->rlvlnostart; pi->rlvlno < pi->maxrlvls &&
pi->rlvlno < pchg->rlvlnoend; ++pi->rlvlno) {
for (pi->lyrno = 0; pi->lyrno < pi->numlyrs && pi->lyrno <
pchg->lyrnoend; ++pi->lyrno) {
for (pi->compno = pchg->compnostart, pi->picomp =
&pi->picomps[pi->compno]; pi->compno < pi->numcomps &&
pi->compno < pchg->compnoend; ++pi->compno,
++pi->picomp) {
if (pi->rlvlno >= pi->picomp->numrlvls) {
continue;
}
pi->pirlvl = &pi->picomp->pirlvls[pi->rlvlno];
for (pi->prcno = 0, prclyrno = pi->pirlvl->prclyrnos;
pi->prcno < pi->pirlvl->numprcs; ++pi->prcno, ++prclyrno) {
if (pi->lyrno >= *prclyrno) {
*prclyrno = pi->lyrno;
++(*prclyrno);
return 0;
}
skip:
;
}
}
}
}
return 1;
}
static int jpc_pi_nextrpcl(register jpc_pi_t *pi)
{
unsigned rlvlno;
unsigned *prclyrno;
unsigned compno;
unsigned xstep;
unsigned ystep;
uint_fast32_t r;
uint_fast32_t rpx;
uint_fast32_t rpy;
uint_fast32_t trx0;
uint_fast32_t try0;
const jpc_pchg_t *pchg = pi->pchg;
if (!pi->prgvolfirst) {
goto skip;
} else {
pi->xstep = 0;
pi->ystep = 0;
const jpc_picomp_t *picomp;
for (compno = 0, picomp = pi->picomps; compno < pi->numcomps;
++compno, ++picomp) {
const jpc_pirlvl_t *pirlvl;
for (rlvlno = 0, pirlvl = picomp->pirlvls; rlvlno <
picomp->numrlvls; ++rlvlno, ++pirlvl) {
// Check for the potential for overflow problems.
if (pirlvl->prcwidthexpn + picomp->numrlvls >
JAS_UINTFAST32_NUMBITS - 2 ||
pirlvl->prcheightexpn + picomp->numrlvls >
JAS_UINTFAST32_NUMBITS - 2) {
return -1;
}
xstep = picomp->hsamp * (JAS_CAST(uint_fast32_t, 1) <<
(pirlvl->prcwidthexpn + picomp->numrlvls - rlvlno - 1));
ystep = picomp->vsamp * (JAS_CAST(uint_fast32_t, 1) <<
(pirlvl->prcheightexpn + picomp->numrlvls - rlvlno - 1));
pi->xstep = (!pi->xstep) ? xstep : JAS_MIN(pi->xstep, xstep);
pi->ystep = (!pi->ystep) ? ystep : JAS_MIN(pi->ystep, ystep);
}
}
pi->prgvolfirst = 0;
}
if (pi->xstep == 0 || pi->ystep == 0)
/* avoid division by zero */
return -1;
for (pi->rlvlno = pchg->rlvlnostart; pi->rlvlno < pchg->rlvlnoend &&
pi->rlvlno < pi->maxrlvls; ++pi->rlvlno) {
for (pi->y = pi->ystart; pi->y < pi->yend; pi->y +=
pi->ystep - (pi->y % pi->ystep)) {
for (pi->x = pi->xstart; pi->x < pi->xend; pi->x +=
pi->xstep - (pi->x % pi->xstep)) {
for (pi->compno = pchg->compnostart,
pi->picomp = &pi->picomps[pi->compno];
pi->compno < pchg->compnoend && pi->compno <
pi->numcomps; ++pi->compno, ++pi->picomp) {
if (pi->rlvlno >= pi->picomp->numrlvls) {
continue;
}
pi->pirlvl = &pi->picomp->pirlvls[pi->rlvlno];
if (pi->pirlvl->numprcs == 0) {
continue;
}
r = pi->picomp->numrlvls - 1 - pi->rlvlno;
rpx = r + pi->pirlvl->prcwidthexpn;
rpy = r + pi->pirlvl->prcheightexpn;
trx0 = JPC_CEILDIV(pi->xstart, pi->picomp->hsamp << r);
try0 = JPC_CEILDIV(pi->ystart, pi->picomp->vsamp << r);
if (((pi->x == pi->xstart &&
((trx0 << r) % (JAS_CAST(uint_fast32_t, 1) << rpx)))
|| !(pi->x % (pi->picomp->hsamp << rpx))) &&
((pi->y == pi->ystart &&
((try0 << r) % (JAS_CAST(uint_fast32_t, 1) << rpy)))
|| !(pi->y % (pi->picomp->vsamp << rpy)))) {
const unsigned prchind = JPC_FLOORDIVPOW2(JPC_CEILDIV(pi->x,
pi->picomp->hsamp << r), pi->pirlvl->prcwidthexpn) -
JPC_FLOORDIVPOW2(trx0, pi->pirlvl->prcwidthexpn);
const unsigned prcvind = JPC_FLOORDIVPOW2(JPC_CEILDIV(pi->y,
pi->picomp->vsamp << r), pi->pirlvl->prcheightexpn) -
JPC_FLOORDIVPOW2(try0, pi->pirlvl->prcheightexpn);
pi->prcno = prcvind * pi->pirlvl->numhprcs + prchind;
if (pi->prcno >= pi->pirlvl->numprcs) {
return -1;
}
for (pi->lyrno = 0; pi->lyrno <
pi->numlyrs && pi->lyrno < pchg->lyrnoend; ++pi->lyrno) {
prclyrno = &pi->pirlvl->prclyrnos[pi->prcno];
if (pi->lyrno >= *prclyrno) {
++(*prclyrno);
return 0;
}
skip:
;
}
}
}
}
}
}
return 1;
}
static int jpc_pi_nextpcrl(register jpc_pi_t *pi)
{
unsigned rlvlno;
unsigned *prclyrno;
unsigned compno;
unsigned xstep;
unsigned ystep;
uint_fast32_t trx0;
uint_fast32_t try0;
uint_fast32_t r;
uint_fast32_t rpx;
uint_fast32_t rpy;
const jpc_pchg_t *pchg = pi->pchg;
if (!pi->prgvolfirst) {
goto skip;
} else {
pi->xstep = 0;
pi->ystep = 0;
const jpc_picomp_t *picomp;
for (compno = 0, picomp = pi->picomps; compno < pi->numcomps;
++compno, ++picomp) {
const jpc_pirlvl_t *pirlvl;
for (rlvlno = 0, pirlvl = picomp->pirlvls; rlvlno <
picomp->numrlvls; ++rlvlno, ++pirlvl) {
// Check for the potential for overflow problems.
if (pirlvl->prcwidthexpn + picomp->numrlvls >
JAS_UINTFAST32_NUMBITS - 2 ||
pirlvl->prcheightexpn + picomp->numrlvls >
JAS_UINTFAST32_NUMBITS - 2) {
return -1;
}
xstep = picomp->hsamp * (JAS_CAST(uint_fast32_t, 1) <<
(pirlvl->prcwidthexpn + picomp->numrlvls - rlvlno - 1));
ystep = picomp->vsamp * (JAS_CAST(uint_fast32_t, 1) <<
(pirlvl->prcheightexpn + picomp->numrlvls - rlvlno - 1));
pi->xstep = (!pi->xstep) ? xstep : JAS_MIN(pi->xstep, xstep);
pi->ystep = (!pi->ystep) ? ystep : JAS_MIN(pi->ystep, ystep);
}
}
pi->prgvolfirst = 0;
}
if (pi->xstep == 0 || pi->ystep == 0)
/* avoid division by zero */
return -1;
for (pi->y = pi->ystart; pi->y < pi->yend; pi->y += pi->ystep -
(pi->y % pi->ystep)) {
for (pi->x = pi->xstart; pi->x < pi->xend; pi->x += pi->xstep -
(pi->x % pi->xstep)) {
for (pi->compno = pchg->compnostart, pi->picomp =
&pi->picomps[pi->compno]; pi->compno < pi->numcomps
&& pi->compno < pchg->compnoend; ++pi->compno,
++pi->picomp) {
for (pi->rlvlno = pchg->rlvlnostart,
pi->pirlvl = &pi->picomp->pirlvls[pi->rlvlno];
pi->rlvlno < pi->picomp->numrlvls &&
pi->rlvlno < pchg->rlvlnoend; ++pi->rlvlno,
++pi->pirlvl) {
if (pi->pirlvl->numprcs == 0) {
continue;
}
r = pi->picomp->numrlvls - 1 - pi->rlvlno;
trx0 = JPC_CEILDIV(pi->xstart, pi->picomp->hsamp << r);
try0 = JPC_CEILDIV(pi->ystart, pi->picomp->vsamp << r);
rpx = r + pi->pirlvl->prcwidthexpn;
rpy = r + pi->pirlvl->prcheightexpn;
if (((pi->x == pi->xstart &&
((trx0 << r) % (JAS_CAST(uint_fast32_t, 1) << rpx))) ||
!(pi->x % (pi->picomp->hsamp << rpx))) &&
((pi->y == pi->ystart &&
((try0 << r) % (JAS_CAST(uint_fast32_t, 1) << rpy))) ||
!(pi->y % (pi->picomp->vsamp << rpy)))) {
const unsigned prchind = JPC_FLOORDIVPOW2(JPC_CEILDIV(pi->x,
pi->picomp->hsamp << r), pi->pirlvl->prcwidthexpn) -
JPC_FLOORDIVPOW2(trx0, pi->pirlvl->prcwidthexpn);
const unsigned prcvind = JPC_FLOORDIVPOW2(JPC_CEILDIV(pi->y,
pi->picomp->vsamp << r), pi->pirlvl->prcheightexpn) -
JPC_FLOORDIVPOW2(try0, pi->pirlvl->prcheightexpn);
pi->prcno = prcvind * pi->pirlvl->numhprcs + prchind;
assert(pi->prcno < pi->pirlvl->numprcs);
for (pi->lyrno = 0; pi->lyrno < pi->numlyrs &&
pi->lyrno < pchg->lyrnoend;
++pi->lyrno) {
prclyrno = &pi->pirlvl->prclyrnos[pi->prcno];
if (pi->lyrno >= *prclyrno) {
++(*prclyrno);
return 0;
}
skip:
;
}
}
}
}
}
}
return 1;
}
static int jpc_pi_nextcprl(register jpc_pi_t *pi)
{
unsigned rlvlno;
unsigned *prclyrno;
uint_fast32_t trx0;
uint_fast32_t try0;
uint_fast32_t r;
uint_fast32_t rpx;
uint_fast32_t rpy;
const jpc_pchg_t *pchg = pi->pchg;
if (!pi->prgvolfirst) {
goto skip;
} else {
pi->prgvolfirst = 0;
}
if (pi->xstep == 0 || pi->ystep == 0)
/* avoid division by zero */
return -1;
for (pi->compno = pchg->compnostart, pi->picomp = &pi->picomps[pi->compno];
pi->compno < pchg->compnoend && pi->compno < pi->numcomps;
++pi->compno, ++pi->picomp) {
const jpc_pirlvl_t *pirlvl = pi->picomp->pirlvls;
// Check for the potential for overflow problems.
if (pirlvl->prcwidthexpn + pi->picomp->numrlvls >
JAS_UINTFAST32_NUMBITS - 2 ||
pirlvl->prcheightexpn + pi->picomp->numrlvls >
JAS_UINTFAST32_NUMBITS - 2) {
return -1;
}
pi->xstep = pi->picomp->hsamp * (JAS_CAST(uint_fast32_t, 1) <<
(pirlvl->prcwidthexpn + pi->picomp->numrlvls - 1));
pi->ystep = pi->picomp->vsamp * (JAS_CAST(uint_fast32_t, 1) <<
(pirlvl->prcheightexpn + pi->picomp->numrlvls - 1));
for (rlvlno = 1, pirlvl = &pi->picomp->pirlvls[1];
rlvlno < pi->picomp->numrlvls; ++rlvlno, ++pirlvl) {
pi->xstep = JAS_MIN(pi->xstep, pi->picomp->hsamp *
(JAS_CAST(uint_fast32_t, 1) << (pirlvl->prcwidthexpn +
pi->picomp->numrlvls - rlvlno - 1)));
pi->ystep = JAS_MIN(pi->ystep, pi->picomp->vsamp *
(JAS_CAST(uint_fast32_t, 1) << (pirlvl->prcheightexpn +
pi->picomp->numrlvls - rlvlno - 1)));
}
for (pi->y = pi->ystart; pi->y < pi->yend;
pi->y += pi->ystep - (pi->y % pi->ystep)) {
for (pi->x = pi->xstart; pi->x < pi->xend;
pi->x += pi->xstep - (pi->x % pi->xstep)) {
for (pi->rlvlno = pchg->rlvlnostart,
pi->pirlvl = &pi->picomp->pirlvls[pi->rlvlno];
pi->rlvlno < pi->picomp->numrlvls && pi->rlvlno <
pchg->rlvlnoend; ++pi->rlvlno, ++pi->pirlvl) {
if (pi->pirlvl->numprcs == 0) {
continue;
}
r = pi->picomp->numrlvls - 1 - pi->rlvlno;
trx0 = JPC_CEILDIV(pi->xstart, pi->picomp->hsamp << r);
try0 = JPC_CEILDIV(pi->ystart, pi->picomp->vsamp << r);
rpx = r + pi->pirlvl->prcwidthexpn;
rpy = r + pi->pirlvl->prcheightexpn;
if (((pi->x == pi->xstart &&
((trx0 << r) % (JAS_CAST(uint_fast32_t, 1) << rpx))) ||
!(pi->x % (pi->picomp->hsamp << rpx))) &&
((pi->y == pi->ystart &&
((try0 << r) % (JAS_CAST(uint_fast32_t, 1) << rpy))) ||
!(pi->y % (pi->picomp->vsamp << rpy)))) {
const unsigned prchind = JPC_FLOORDIVPOW2(JPC_CEILDIV(pi->x,
pi->picomp->hsamp << r), pi->pirlvl->prcwidthexpn) -
JPC_FLOORDIVPOW2(trx0, pi->pirlvl->prcwidthexpn);
const unsigned prcvind = JPC_FLOORDIVPOW2(JPC_CEILDIV(pi->y,
pi->picomp->vsamp << r), pi->pirlvl->prcheightexpn) -
JPC_FLOORDIVPOW2(try0, pi->pirlvl->prcheightexpn);
pi->prcno = prcvind * pi->pirlvl->numhprcs + prchind;
assert(pi->prcno < pi->pirlvl->numprcs);
for (pi->lyrno = 0; pi->lyrno < pi->numlyrs &&
pi->lyrno < pchg->lyrnoend;
++pi->lyrno) {
prclyrno = &pi->pirlvl->prclyrnos[pi->prcno];
if (pi->lyrno >= *prclyrno) {
++(*prclyrno);
return 0;
}
skip:
;
}
}
}
}
}
}
return 1;
}
static void pirlvl_destroy(jpc_pirlvl_t *rlvl)
{
if (rlvl->prclyrnos) {
jas_free(rlvl->prclyrnos);
}
}
static void jpc_picomp_destroy(jpc_picomp_t *picomp)
{
unsigned rlvlno;
jpc_pirlvl_t *pirlvl;
if (picomp->pirlvls) {
for (rlvlno = 0, pirlvl = picomp->pirlvls; rlvlno <
picomp->numrlvls; ++rlvlno, ++pirlvl) {
pirlvl_destroy(pirlvl);
}
jas_free(picomp->pirlvls);
}
}
void jpc_pi_destroy(jpc_pi_t *pi)
{
jpc_picomp_t *picomp;
unsigned compno;
if (pi->picomps) {
for (compno = 0, picomp = pi->picomps; compno < pi->numcomps;
++compno, ++picomp) {
jpc_picomp_destroy(picomp);
}
jas_free(pi->picomps);
}
if (pi->pchglist) {
jpc_pchglist_destroy(pi->pchglist);
}
jas_free(pi);
}
jpc_pi_t *jpc_pi_create0()
{
jpc_pi_t *pi;
if (!(pi = jas_malloc(sizeof(jpc_pi_t)))) {
return 0;
}
pi->picomps = 0;
pi->pchgno = 0;
if (!(pi->pchglist = jpc_pchglist_create())) {
jas_free(pi);
return 0;
}
return pi;
}
int jpc_pi_addpchg(jpc_pi_t *pi, jpc_pocpchg_t *pchg)
{
return jpc_pchglist_insert(pi->pchglist, -1, pchg);
}
jpc_pchglist_t *jpc_pchglist_create()
{
jpc_pchglist_t *pchglist;
if (!(pchglist = jas_malloc(sizeof(jpc_pchglist_t)))) {
return 0;
}
pchglist->numpchgs = 0;
pchglist->maxpchgs = 0;
pchglist->pchgs = 0;
return pchglist;
}
int jpc_pchglist_insert(jpc_pchglist_t *pchglist, int pchgno, jpc_pchg_t *pchg)
{
jpc_pchg_t **newpchgs;
if (pchgno < 0) {
pchgno = pchglist->numpchgs;
}
if (pchglist->numpchgs >= pchglist->maxpchgs) {
const unsigned newmaxpchgs = pchglist->maxpchgs + 128;
if (!(newpchgs = jas_realloc2(pchglist->pchgs, newmaxpchgs,
sizeof(jpc_pchg_t *)))) {
return -1;
}
pchglist->maxpchgs = newmaxpchgs;
pchglist->pchgs = newpchgs;
}
for (unsigned i = pchglist->numpchgs; i > (unsigned)pchgno; --i) {
pchglist->pchgs[i] = pchglist->pchgs[i - 1];
}
pchglist->pchgs[pchgno] = pchg;
++pchglist->numpchgs;
return 0;
}
jpc_pchg_t *jpc_pchglist_remove(jpc_pchglist_t *pchglist, unsigned pchgno)
{
jpc_pchg_t *pchg;
assert(pchgno < pchglist->numpchgs);
pchg = pchglist->pchgs[pchgno];
for (unsigned i = pchgno + 1; i < pchglist->numpchgs; ++i) {
pchglist->pchgs[i - 1] = pchglist->pchgs[i];
}
--pchglist->numpchgs;
return pchg;
}
jpc_pchg_t *jpc_pchg_copy(const jpc_pchg_t *pchg)
{
jpc_pchg_t *newpchg;
if (!(newpchg = jas_malloc(sizeof(jpc_pchg_t)))) {
return 0;
}
*newpchg = *pchg;
return newpchg;
}
jpc_pchglist_t *jpc_pchglist_copy(const jpc_pchglist_t *pchglist)
{
jpc_pchglist_t *newpchglist;
jpc_pchg_t *newpchg;
if (!(newpchglist = jpc_pchglist_create())) {
return 0;
}
for (unsigned pchgno = 0; pchgno < pchglist->numpchgs; ++pchgno) {
if (!(newpchg = jpc_pchg_copy(pchglist->pchgs[pchgno])) ||
jpc_pchglist_insert(newpchglist, -1, newpchg)) {
jpc_pchglist_destroy(newpchglist);
return 0;
}
}
return newpchglist;
}
void jpc_pchglist_destroy(jpc_pchglist_t *pchglist)
{
if (pchglist->pchgs) {
for (unsigned pchgno = 0; pchgno < pchglist->numpchgs; ++pchgno) {
jpc_pchg_destroy(pchglist->pchgs[pchgno]);
}
jas_free(pchglist->pchgs);
}
jas_free(pchglist);
}
void jpc_pchg_destroy(jpc_pchg_t *pchg)
{
jas_free(pchg);
}
const jpc_pchg_t *jpc_pchglist_get(const jpc_pchglist_t *pchglist, unsigned pchgno)
{
return pchglist->pchgs[pchgno];
}
unsigned jpc_pchglist_numpchgs(const jpc_pchglist_t *pchglist)
{
return pchglist->numpchgs;
}
int jpc_pi_init(jpc_pi_t *pi)
{
unsigned compno;
unsigned rlvlno;
unsigned prcno;
unsigned *prclyrno;
pi->prgvolfirst = 0;
pi->valid = 0;
pi->pktno = -1;
pi->pchgno = -1;
pi->pchg = 0;
const jpc_picomp_t *picomp;
for (compno = 0, picomp = pi->picomps; compno < pi->numcomps;
++compno, ++picomp) {
const jpc_pirlvl_t *pirlvl;
for (rlvlno = 0, pirlvl = picomp->pirlvls; rlvlno <
picomp->numrlvls; ++rlvlno, ++pirlvl) {
for (prcno = 0, prclyrno = pirlvl->prclyrnos;
prcno < pirlvl->numprcs; ++prcno, ++prclyrno) {
*prclyrno = 0;
}
}
}
return 0;
}