📄 jpc_t2enc.c
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}
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;
}
jpc_putms(out, enc->cstate, ms);
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 < 0 || pass->lyrno > lyrno);
continue;
}
endpasses = &cblk->passes[cblk->numpasses];
startpass = pass;
endpass = startpass;
while (endpass != endpasses && endpass->lyrno == lyrno){
++endpass;
}
lastpass = endpass - 1;
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;
}
}
return 0;
}
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;
int 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;
int 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, int 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;
int 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 = -1;
pass->lyrno = 0;
}
}
}
}
}
}
}
}
jpc_pi_t *jpc_enc_pi_create(jpc_enc_cp_t *cp, jpc_enc_tile_t *tile)
{
jpc_pi_t *pi;
int compno;
jpc_picomp_t *picomp;
jpc_pirlvl_t *pirlvl;
jpc_enc_tcmpt_t *tcomp;
int rlvlno;
jpc_enc_rlvl_t *rlvl;
int prcno;
int *prclyrno;
if (!(pi = jpc_pi_create0())) {
return 0;
}
pi->pktno = -1;
pi->numcomps = cp->numcmpts;
if (!(pi->picomps = jas_malloc(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_malloc(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_malloc(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;
}
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