ref: f7e5af47f117be34669dc1e532d525dcbbff73f0
dir: /jpc_t2enc.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 Encoder
*
* $Id$
*/
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jpc_t2enc.h"
#include "jpc_t2cod.h"
#include "jpc_tagtree.h"
#include "jpc_enc.h"
#include "jpc_math.h"
#include "jasper/jas_malloc.h"
#include "jasper/jas_math.h"
#include "jasper/jas_debug.h"
/******************************************************************************\
* Code.
\******************************************************************************/
static int jpc_putcommacode(jpc_bitstream_t *out, int n)
{
assert(n >= 0);
while (--n >= 0) {
if (jpc_bitstream_putbit(out, 1) == EOF) {
return -1;
}
}
if (jpc_bitstream_putbit(out, 0) == EOF) {
return -1;
}
return 0;
}
static int jpc_putnumnewpasses(jpc_bitstream_t *out, int n)
{
int ret;
if (n <= 0) {
return -1;
} else if (n == 1) {
ret = jpc_bitstream_putbit(out, 0);
} else if (n == 2) {
ret = jpc_bitstream_putbits(out, 2, 2);
} else if (n <= 5) {
ret = jpc_bitstream_putbits(out, 4, 0xc | (n - 3));
} else if (n <= 36) {
ret = jpc_bitstream_putbits(out, 9, 0x1e0 | (n - 6));
} else if (n <= 164) {
ret = jpc_bitstream_putbits(out, 16, 0xff80 | (n - 37));
} else {
/* The standard has no provision for encoding a larger value.
In practice, however, it is highly unlikely that this
limitation will ever be encountered. */
return -1;
}
return (ret != EOF) ? 0 : (-1);
}
int jpc_enc_encpkts(jpc_enc_t *enc, jas_stream_t *out)
{
jpc_enc_tile_t *tile;
jpc_pi_t *pi;
tile = enc->curtile;
jpc_init_t2state(enc, false);
pi = tile->pi;
jpc_pi_init(pi);
if (!jpc_pi_next(pi)) {
for (;;) {
if (jpc_enc_encpkt(enc, out, jpc_pi_cmptno(pi), jpc_pi_rlvlno(pi),
jpc_pi_prcno(pi), jpc_pi_lyrno(pi))) {
return -1;
}
if (jpc_pi_next(pi)) {
break;
}
}
}
return 0;
}
int jpc_enc_encpkt(jpc_enc_t *enc, jas_stream_t *out, unsigned compno, unsigned lvlno, unsigned prcno, unsigned lyrno)
{
jpc_enc_tcmpt_t *comp;
jpc_enc_rlvl_t *lvl;
jpc_enc_band_t *band;
jpc_enc_band_t *endbands;
jpc_enc_cblk_t *cblk;
jpc_enc_cblk_t *endcblks;
jpc_bitstream_t *outb;
jpc_enc_pass_t *pass;
jpc_enc_pass_t *startpass;
jpc_enc_pass_t *lastpass;
jpc_enc_pass_t *endpass;
jpc_enc_pass_t *endpasses;
int i;
int ret;
jpc_tagtreenode_t *leaf;
int t1;
int t2;
jpc_enc_tile_t *tile;
jpc_enc_prc_t *prc;
jpc_enc_cp_t *cp;
jpc_ms_t *ms;
JAS_LOGDEBUGF(10, "encoding packet begin %d %d %d %d\n", compno, lvlno,
prcno, lyrno);
tile = enc->curtile;
cp = enc->cp;
if (cp->tcp.csty & JPC_COD_SOP) {
if (!(ms = jpc_ms_create(JPC_MS_SOP))) {
return -1;
}
ms->parms.sop.seqno = jpc_pi_getind(tile->pi);
if (jpc_putms(out, enc->cstate, ms)) {
return -1;
}
jpc_ms_destroy(ms);
}
if (!(outb = jpc_bitstream_sopen(out, "w+"))) {
return -1;
}
if (jpc_bitstream_putbit(outb, 1) == EOF) {
goto error_close;
}
JAS_LOGDEBUGF(10, "present.\n");
comp = &tile->tcmpts[compno];
lvl = &comp->rlvls[lvlno];
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
prc = &band->prcs[prcno];
if (!prc->cblks) {
continue;
}
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
if (!lyrno) {
leaf = jpc_tagtree_getleaf(prc->nlibtree, cblk - prc->cblks);
jpc_tagtree_setvalue(prc->nlibtree, leaf, cblk->numimsbs);
}
pass = cblk->curpass;
const bool included = (pass && pass->lyrno == lyrno);
if (included && (!cblk->numencpasses)) {
assert(pass->lyrno == lyrno);
leaf = jpc_tagtree_getleaf(prc->incltree,
cblk - prc->cblks);
jpc_tagtree_setvalue(prc->incltree, leaf, pass->lyrno);
}
}
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
pass = cblk->curpass;
const bool included = (pass && pass->lyrno == lyrno);
if (!cblk->numencpasses) {
leaf = jpc_tagtree_getleaf(prc->incltree,
cblk - prc->cblks);
if (jpc_tagtree_encode(prc->incltree, leaf, lyrno + 1, outb) <
0) {
goto error_close;
}
} else {
if (jpc_bitstream_putbit(outb, included) == EOF) {
goto error_close;
}
}
JAS_LOGDEBUGF(10, "included=%d ", included);
if (!included) {
continue;
}
if (!cblk->numencpasses) {
i = 1;
leaf = jpc_tagtree_getleaf(prc->nlibtree, cblk - prc->cblks);
for (;;) {
if ((ret = jpc_tagtree_encode(prc->nlibtree, leaf, i,
outb)) < 0) {
goto error_close;
}
if (ret) {
break;
}
++i;
}
assert(leaf->known_ && i == leaf->value_ + 1);
}
endpasses = &cblk->passes[cblk->numpasses];
startpass = pass;
endpass = startpass;
while (endpass != endpasses && endpass->lyrno == lyrno){
++endpass;
}
const unsigned numnewpasses = endpass - startpass;
if (jpc_putnumnewpasses(outb, numnewpasses)) {
goto error_close;
}
JAS_LOGDEBUGF(10, "numnewpasses=%d ", numnewpasses);
lastpass = endpass - 1;
unsigned n = startpass->start;
unsigned passcount = 1;
unsigned maxadjust = 0;
for (pass = startpass; pass != endpass; ++pass) {
if (pass->term || pass == lastpass) {
unsigned datalen = pass->end - n;
t1 = jpc_int_firstone(datalen) + 1;
t2 = cblk->numlenbits + jpc_floorlog2(passcount);
const unsigned adjust = JAS_MAX(t1 - t2, 0);
maxadjust = JAS_MAX(adjust, maxadjust);
n += datalen;
passcount = 1;
} else {
++passcount;
}
}
if (jpc_putcommacode(outb, maxadjust)) {
goto error_close;
}
cblk->numlenbits += maxadjust;
lastpass = endpass - 1;
n = startpass->start;
passcount = 1;
for (pass = startpass; pass != endpass; ++pass) {
if (pass->term || pass == lastpass) {
unsigned datalen = pass->end - n;
assert(jpc_int_firstone(datalen) < cblk->numlenbits +
(int)jpc_floorlog2(passcount));
if (jpc_bitstream_putbits(outb, cblk->numlenbits +
jpc_floorlog2(passcount), datalen) == EOF) {
goto error_close;
}
n += datalen;
passcount = 1;
} else {
++passcount;
}
}
}
}
jpc_bitstream_outalign(outb, 0);
jpc_bitstream_close(outb);
if (cp->tcp.csty & JPC_COD_EPH) {
if (!(ms = jpc_ms_create(JPC_MS_EPH))) {
return -1;
}
if (jpc_putms(out, enc->cstate, ms)) {
return -1;
}
jpc_ms_destroy(ms);
}
comp = &tile->tcmpts[compno];
lvl = &comp->rlvls[lvlno];
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
prc = &band->prcs[prcno];
if (!prc->cblks) {
continue;
}
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
pass = cblk->curpass;
if (!pass) {
continue;
}
if (pass->lyrno != lyrno) {
assert(pass->lyrno > lyrno);
continue;
}
endpasses = &cblk->passes[cblk->numpasses];
startpass = pass;
endpass = startpass;
while (endpass != endpasses && endpass->lyrno == lyrno){
++endpass;
}
lastpass = endpass - 1;
const unsigned numnewpasses = endpass - startpass;
jas_stream_seek(cblk->stream, startpass->start, SEEK_SET);
assert(jas_stream_tell(cblk->stream) == startpass->start);
if (jas_stream_copy(out, cblk->stream, lastpass->end -
startpass->start)) {
return -1;
}
cblk->curpass = (endpass != endpasses) ? endpass : 0;
cblk->numencpasses += numnewpasses;
}
}
JAS_LOGDEBUGF(10, "encoding packet end\n");
return 0;
error_close:
jpc_bitstream_close(outb);
return -1;
}
void jpc_save_t2state(jpc_enc_t *enc)
{
/* stream pos in embedded T1 stream may be wrong since not saved/restored! */
jpc_enc_tcmpt_t *comp;
jpc_enc_tcmpt_t *endcomps;
jpc_enc_rlvl_t *lvl;
jpc_enc_rlvl_t *endlvls;
jpc_enc_band_t *band;
jpc_enc_band_t *endbands;
jpc_enc_cblk_t *cblk;
jpc_enc_cblk_t *endcblks;
jpc_enc_tile_t *tile;
unsigned prcno;
jpc_enc_prc_t *prc;
tile = enc->curtile;
endcomps = &tile->tcmpts[tile->numtcmpts];
for (comp = tile->tcmpts; comp != endcomps; ++comp) {
endlvls = &comp->rlvls[comp->numrlvls];
for (lvl = comp->rlvls; lvl != endlvls; ++lvl) {
if (!lvl->bands) {
continue;
}
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
if (!prc->cblks) {
continue;
}
jpc_tagtree_copy(prc->savincltree, prc->incltree);
jpc_tagtree_copy(prc->savnlibtree, prc->nlibtree);
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
cblk->savedcurpass = cblk->curpass;
cblk->savednumencpasses = cblk->numencpasses;
cblk->savednumlenbits = cblk->numlenbits;
}
}
}
}
}
}
void jpc_restore_t2state(jpc_enc_t *enc)
{
jpc_enc_tcmpt_t *comp;
jpc_enc_tcmpt_t *endcomps;
jpc_enc_rlvl_t *lvl;
jpc_enc_rlvl_t *endlvls;
jpc_enc_band_t *band;
jpc_enc_band_t *endbands;
jpc_enc_cblk_t *cblk;
jpc_enc_cblk_t *endcblks;
jpc_enc_tile_t *tile;
unsigned prcno;
jpc_enc_prc_t *prc;
tile = enc->curtile;
endcomps = &tile->tcmpts[tile->numtcmpts];
for (comp = tile->tcmpts; comp != endcomps; ++comp) {
endlvls = &comp->rlvls[comp->numrlvls];
for (lvl = comp->rlvls; lvl != endlvls; ++lvl) {
if (!lvl->bands) {
continue;
}
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
if (!prc->cblks) {
continue;
}
jpc_tagtree_copy(prc->incltree, prc->savincltree);
jpc_tagtree_copy(prc->nlibtree, prc->savnlibtree);
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
cblk->curpass = cblk->savedcurpass;
cblk->numencpasses = cblk->savednumencpasses;
cblk->numlenbits = cblk->savednumlenbits;
}
}
}
}
}
}
void jpc_init_t2state(jpc_enc_t *enc, bool raflag)
{
/* It is assumed that band->numbps and cblk->numbps precomputed */
jpc_enc_tcmpt_t *comp;
jpc_enc_tcmpt_t *endcomps;
jpc_enc_rlvl_t *lvl;
jpc_enc_rlvl_t *endlvls;
jpc_enc_band_t *band;
jpc_enc_band_t *endbands;
jpc_enc_cblk_t *cblk;
jpc_enc_cblk_t *endcblks;
jpc_enc_pass_t *pass;
jpc_enc_pass_t *endpasses;
jpc_tagtreenode_t *leaf;
jpc_enc_tile_t *tile;
unsigned prcno;
jpc_enc_prc_t *prc;
tile = enc->curtile;
endcomps = &tile->tcmpts[tile->numtcmpts];
for (comp = tile->tcmpts; comp != endcomps; ++comp) {
endlvls = &comp->rlvls[comp->numrlvls];
for (lvl = comp->rlvls; lvl != endlvls; ++lvl) {
if (!lvl->bands) {
continue;
}
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
if (!prc->cblks) {
continue;
}
jpc_tagtree_reset(prc->incltree);
jpc_tagtree_reset(prc->nlibtree);
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
if (jas_stream_rewind(cblk->stream)) {
assert(0);
}
cblk->curpass = (cblk->numpasses > 0) ? cblk->passes : 0;
cblk->numencpasses = 0;
cblk->numlenbits = 3;
cblk->numimsbs = band->numbps - cblk->numbps;
assert(cblk->numimsbs >= 0);
leaf = jpc_tagtree_getleaf(prc->nlibtree, cblk - prc->cblks);
jpc_tagtree_setvalue(prc->nlibtree, leaf, cblk->numimsbs);
if (raflag) {
endpasses = &cblk->passes[cblk->numpasses];
for (pass = cblk->passes; pass != endpasses; ++pass) {
pass->lyrno = 0;
}
}
}
}
}
}
}
}
jpc_pi_t *jpc_enc_pi_create(jpc_enc_cp_t *cp, jpc_enc_tile_t *tile)
{
jpc_pi_t *pi;
unsigned compno;
jpc_picomp_t *picomp;
jpc_pirlvl_t *pirlvl;
jpc_enc_tcmpt_t *tcomp;
unsigned rlvlno;
jpc_enc_rlvl_t *rlvl;
unsigned prcno;
unsigned *prclyrno;
if (!(pi = jpc_pi_create0())) {
return 0;
}
pi->pktno = -1;
pi->numcomps = cp->numcmpts;
if (!(pi->picomps = jas_alloc2(pi->numcomps, sizeof(jpc_picomp_t)))) {
jpc_pi_destroy(pi);
return 0;
}
for (compno = 0, picomp = pi->picomps; compno < pi->numcomps; ++compno,
++picomp) {
picomp->pirlvls = 0;
}
for (compno = 0, tcomp = tile->tcmpts, picomp = pi->picomps;
compno < pi->numcomps; ++compno, ++tcomp, ++picomp) {
picomp->numrlvls = tcomp->numrlvls;
if (!(picomp->pirlvls = jas_alloc2(picomp->numrlvls,
sizeof(jpc_pirlvl_t)))) {
jpc_pi_destroy(pi);
return 0;
}
for (rlvlno = 0, pirlvl = picomp->pirlvls; rlvlno <
picomp->numrlvls; ++rlvlno, ++pirlvl) {
pirlvl->prclyrnos = 0;
}
for (rlvlno = 0, pirlvl = picomp->pirlvls, rlvl = tcomp->rlvls;
rlvlno < picomp->numrlvls; ++rlvlno, ++pirlvl, ++rlvl) {
/* XXX sizeof(long) should be sizeof different type */
pirlvl->numprcs = rlvl->numprcs;
if (rlvl->numprcs) {
if (!(pirlvl->prclyrnos = jas_alloc2(pirlvl->numprcs,
sizeof(long)))) {
jpc_pi_destroy(pi);
return 0;
}
} else {
pirlvl->prclyrnos = 0;
}
}
}
pi->maxrlvls = 0;
for (compno = 0, tcomp = tile->tcmpts, picomp = pi->picomps;
compno < pi->numcomps; ++compno, ++tcomp, ++picomp) {
picomp->hsamp = cp->ccps[compno].sampgrdstepx;
picomp->vsamp = cp->ccps[compno].sampgrdstepy;
for (rlvlno = 0, pirlvl = picomp->pirlvls, rlvl = tcomp->rlvls;
rlvlno < picomp->numrlvls; ++rlvlno, ++pirlvl, ++rlvl) {
pirlvl->prcwidthexpn = rlvl->prcwidthexpn;
pirlvl->prcheightexpn = rlvl->prcheightexpn;
for (prcno = 0, prclyrno = pirlvl->prclyrnos;
prcno < pirlvl->numprcs; ++prcno, ++prclyrno) {
*prclyrno = 0;
}
pirlvl->numhprcs = rlvl->numhprcs;
}
if (pi->maxrlvls < tcomp->numrlvls) {
pi->maxrlvls = tcomp->numrlvls;
}
}
pi->numlyrs = tile->numlyrs;
pi->xstart = tile->tlx;
pi->ystart = tile->tly;
pi->xend = tile->brx;
pi->yend = tile->bry;
pi->picomp = 0;
pi->pirlvl = 0;
pi->x = 0;
pi->y = 0;
pi->compno = 0;
pi->rlvlno = 0;
pi->prcno = 0;
pi->lyrno = 0;
pi->xstep = 0;
pi->ystep = 0;
pi->pchgno = -1;
pi->defaultpchg.prgord = tile->prg;
pi->defaultpchg.compnostart = 0;
pi->defaultpchg.compnoend = pi->numcomps;
pi->defaultpchg.rlvlnostart = 0;
pi->defaultpchg.rlvlnoend = pi->maxrlvls;
pi->defaultpchg.lyrnoend = pi->numlyrs;
pi->pchg = 0;
pi->valid = 0;
return pi;
}