diff options
Diffstat (limited to 'converter/other/jpeg2000/libjasper/jpc/jpc_t1enc.c')
| -rw-r--r-- | converter/other/jpeg2000/libjasper/jpc/jpc_t1enc.c | 1557 |
1 files changed, 788 insertions, 769 deletions
diff --git a/converter/other/jpeg2000/libjasper/jpc/jpc_t1enc.c b/converter/other/jpeg2000/libjasper/jpc/jpc_t1enc.c index 8aa024a9..e1af0f61 100644 --- a/converter/other/jpeg2000/libjasper/jpc/jpc_t1enc.c +++ b/converter/other/jpeg2000/libjasper/jpc/jpc_t1enc.c @@ -1,4 +1,4 @@ -/* + /* * Copyright (c) 1999-2000 Image Power, Inc. and the University of * British Columbia. * Copyright (c) 2001-2002 Michael David Adams. @@ -156,853 +156,872 @@ static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int, /* Encode all of the code blocks associated with the current tile. */ int jpc_enc_enccblks(jpc_enc_t *enc) { - jpc_enc_tcmpt_t *tcmpt; - 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; - int i; - int j; - int mx; - int bmx; - int v; - jpc_enc_tile_t *tile; - uint_fast32_t prcno; - jpc_enc_prc_t *prc; - - tile = enc->curtile; - - endcomps = &tile->tcmpts[tile->numtcmpts]; - for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) { - endlvls = &tcmpt->rlvls[tcmpt->numrlvls]; - for (lvl = tcmpt->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; - } - bmx = 0; - endcblks = &prc->cblks[prc->numcblks]; - for (cblk = prc->cblks; cblk != endcblks; ++cblk) { - mx = 0; - for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) { - for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) { - v = abs(jas_matrix_get(cblk->data, i, j)); - if (v > mx) { - mx = v; - } - } - } - if (mx > bmx) { - bmx = mx; - } - cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0); - } - - for (cblk = prc->cblks; cblk != endcblks; ++cblk) { - cblk->numimsbs = band->numbps - cblk->numbps; - assert(cblk->numimsbs >= 0); - } - - for (cblk = prc->cblks; cblk != endcblks; ++cblk) { - if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) { - return -1; - } - } - } - } - } - } - return 0; + jpc_enc_tcmpt_t *tcmpt; + 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; + int i; + int j; + int mx; + int bmx; + int v; + jpc_enc_tile_t *tile; + uint_fast32_t prcno; + jpc_enc_prc_t *prc; + + tile = enc->curtile; + + endcomps = &tile->tcmpts[tile->numtcmpts]; + for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) { + endlvls = &tcmpt->rlvls[tcmpt->numrlvls]; + for (lvl = tcmpt->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; + } + bmx = 0; + endcblks = &prc->cblks[prc->numcblks]; + for (cblk = prc->cblks; cblk != endcblks; ++cblk) { + mx = 0; + for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) { + for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) { + v = abs(jas_matrix_get(cblk->data, i, j)); + if (v > mx) { + mx = v; + } + } + } + if (mx > bmx) { + bmx = mx; + } + cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0); + } + + for (cblk = prc->cblks; cblk != endcblks; ++cblk) { + cblk->numimsbs = band->numbps - cblk->numbps; + assert(cblk->numimsbs >= 0); + } + + for (cblk = prc->cblks; cblk != endcblks; ++cblk) { + if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) { + return -1; + } + } + } + } + } + } + return 0; } static int getthebyte(jas_stream_t *in, long off) { - int c; - long oldpos; - oldpos = jas_stream_tell(in); - assert(oldpos >= 0); - jas_stream_seek(in, off, SEEK_SET); - c = jas_stream_peekc(in); - jas_stream_seek(in, oldpos, SEEK_SET); - return c; + int c; + long oldpos; + oldpos = jas_stream_tell(in); + assert(oldpos >= 0); + jas_stream_seek(in, off, SEEK_SET); + c = jas_stream_peekc(in); + jas_stream_seek(in, oldpos, SEEK_SET); + return c; } -/* Encode a single code block. */ -int jpc_enc_enccblk(jpc_enc_t *enc, jas_stream_t *out, jpc_enc_tcmpt_t *tcmpt, jpc_enc_band_t *band, jpc_enc_cblk_t *cblk) -{ - jpc_enc_pass_t *pass; - jpc_enc_pass_t *endpasses; - int bitpos; - int n; - int adjust; - int ret; - int passtype; - int t; - jpc_bitstream_t *bout; - jpc_enc_pass_t *termpass; - jpc_enc_rlvl_t *rlvl; - int vcausal; - int segsym; - int termmode; - int c; - - bout = 0; - rlvl = band->rlvl; - - cblk->stream = jas_stream_memopen(0, 0); - assert(cblk->stream); - cblk->mqenc = jpc_mqenc_create(JPC_NUMCTXS, cblk->stream); - assert(cblk->mqenc); - jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs); - - cblk->numpasses = (cblk->numbps > 0) ? (3 * cblk->numbps - 2) : 0; - if (cblk->numpasses > 0) { - cblk->passes = jas_malloc(cblk->numpasses * sizeof(jpc_enc_pass_t)); - assert(cblk->passes); - } else { - cblk->passes = 0; - } - endpasses = &cblk->passes[cblk->numpasses]; - for (pass = cblk->passes; pass != endpasses; ++pass) { - pass->start = 0; - pass->end = 0; - pass->term = JPC_ISTERMINATED(pass - cblk->passes, 0, cblk->numpasses, (tcmpt->cblksty & JPC_COX_TERMALL) != 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0); - pass->type = JPC_SEGTYPE(pass - cblk->passes, 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0); - pass->lyrno = -1; -if (pass == endpasses - 1) { -assert(pass->term == 1); - pass->term = 1; -} - } - - cblk->flags = jas_matrix_create(jas_matrix_numrows(cblk->data) + 2, - jas_matrix_numcols(cblk->data) + 2); - assert(cblk->flags); - - bitpos = cblk->numbps - 1; - pass = cblk->passes; - n = cblk->numpasses; - while (--n >= 0) { - if (pass->type == JPC_SEG_MQ) { - /* NOP */ - } else { - assert(pass->type == JPC_SEG_RAW); - if (!bout) { - bout = jpc_bitstream_sopen(cblk->stream, "w"); - assert(bout); - } - } +int +jpc_enc_enccblk(jpc_enc_t *enc, jas_stream_t *out, jpc_enc_tcmpt_t *tcmpt, + jpc_enc_band_t *band, jpc_enc_cblk_t *cblk) { +/*---------------------------------------------------------------------------- + Encode a single code block. +-----------------------------------------------------------------------------*/ + jpc_enc_pass_t *pass; + jpc_enc_pass_t *endpasses; + int bitpos; + int n; + int adjust; + int passtype; + int t; + jpc_bitstream_t *bout; + jpc_enc_pass_t *termpass; + int vcausal; + int segsym; + int termmode; + int c; + + bout = 0; + + cblk->stream = jas_stream_memopen(0, 0); + assert(cblk->stream); + cblk->mqenc = jpc_mqenc_create(JPC_NUMCTXS, cblk->stream); + assert(cblk->mqenc); + jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs); + + cblk->numpasses = (cblk->numbps > 0) ? (3 * cblk->numbps - 2) : 0; + if (cblk->numpasses > 0) { + cblk->passes = jas_malloc(cblk->numpasses * sizeof(jpc_enc_pass_t)); + assert(cblk->passes); + } else { + cblk->passes = 0; + } + endpasses = &cblk->passes[cblk->numpasses]; + for (pass = cblk->passes; pass != endpasses; ++pass) { + pass->start = 0; + pass->end = 0; + pass->term = + JPC_ISTERMINATED(pass - cblk->passes, 0, + cblk->numpasses, + (tcmpt->cblksty & JPC_COX_TERMALL) != 0, + (tcmpt->cblksty & JPC_COX_LAZY) != 0); + pass->type = JPC_SEGTYPE(pass - cblk->passes, 0, + (tcmpt->cblksty & JPC_COX_LAZY) != 0); + pass->lyrno = -1; + if (pass == endpasses - 1) { + assert(pass->term == 1); + pass->term = 1; + } + } + + cblk->flags = jas_matrix_create(jas_matrix_numrows(cblk->data) + 2, + jas_matrix_numcols(cblk->data) + 2); + assert(cblk->flags); + + + bitpos = cblk->numbps - 1; + pass = cblk->passes; + n = cblk->numpasses; + while (--n >= 0) { + + if (pass->type == JPC_SEG_MQ) { + /* NOP */ + } else { + assert(pass->type == JPC_SEG_RAW); + if (!bout) { + bout = jpc_bitstream_sopen(cblk->stream, "w"); + assert(bout); + } + } #if 1 - passtype = (pass - cblk->passes + 2) % 3; + passtype = (pass - cblk->passes + 2) % 3; #else - passtype = JPC_PASSTYPE(pass - cblk->passes + 2); + passtype = JPC_PASSTYPE(pass - cblk->passes + 2); #endif - pass->start = jas_stream_tell(cblk->stream); + pass->start = jas_stream_tell(cblk->stream); #if 0 assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream)); #endif - assert(bitpos >= 0); - vcausal = (tcmpt->cblksty & JPC_COX_VSC) != 0; - segsym = (tcmpt->cblksty & JPC_COX_SEGSYM) != 0; - if (pass->term) { - termmode = ((tcmpt->cblksty & JPC_COX_PTERM) ? - JPC_MQENC_PTERM : JPC_MQENC_DEFTERM) + 1; - } else { - termmode = 0; - } - switch (passtype) { - case JPC_SIGPASS: - ret = (pass->type == JPC_SEG_MQ) ? jpc_encsigpass(cblk->mqenc, - bitpos, band->orient, vcausal, cblk->flags, - cblk->data, termmode, &pass->nmsedec) : - jpc_encrawsigpass(bout, bitpos, vcausal, cblk->flags, - cblk->data, termmode, &pass->nmsedec); - break; - case JPC_REFPASS: - ret = (pass->type == JPC_SEG_MQ) ? jpc_encrefpass(cblk->mqenc, - bitpos, vcausal, cblk->flags, cblk->data, termmode, - &pass->nmsedec) : jpc_encrawrefpass(bout, bitpos, - vcausal, cblk->flags, cblk->data, termmode, - &pass->nmsedec); - break; - case JPC_CLNPASS: - assert(pass->type == JPC_SEG_MQ); - ret = jpc_encclnpass(cblk->mqenc, bitpos, band->orient, - vcausal, segsym, cblk->flags, cblk->data, termmode, - &pass->nmsedec); - break; - default: - assert(0); - break; - } - - if (pass->type == JPC_SEG_MQ) { - if (pass->term) { - jpc_mqenc_init(cblk->mqenc); - } - jpc_mqenc_getstate(cblk->mqenc, &pass->mqencstate); - pass->end = jas_stream_tell(cblk->stream); - if (tcmpt->cblksty & JPC_COX_RESET) { - jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs); - } - } else { - if (pass->term) { - if (jpc_bitstream_pending(bout)) { - jpc_bitstream_outalign(bout, 0x2a); - } - jpc_bitstream_close(bout); - bout = 0; - pass->end = jas_stream_tell(cblk->stream); - } else { - pass->end = jas_stream_tell(cblk->stream) + - jpc_bitstream_pending(bout); -/* NOTE - This will not work. need to adjust by # of pending output bytes */ - } - } + assert(bitpos >= 0); + vcausal = (tcmpt->cblksty & JPC_COX_VSC) != 0; + segsym = (tcmpt->cblksty & JPC_COX_SEGSYM) != 0; + if (pass->term) { + termmode = ((tcmpt->cblksty & JPC_COX_PTERM) ? + JPC_MQENC_PTERM : JPC_MQENC_DEFTERM) + 1; + } else { + termmode = 0; + } + switch (passtype) { + case JPC_SIGPASS: + if (pass->type == JPC_SEG_MQ) + jpc_encsigpass(cblk->mqenc, + bitpos, band->orient, vcausal, cblk->flags, + cblk->data, termmode, &pass->nmsedec); + else + jpc_encrawsigpass(bout, bitpos, vcausal, cblk->flags, + cblk->data, termmode, &pass->nmsedec); + break; + case JPC_REFPASS: + if (pass->type == JPC_SEG_MQ) + jpc_encrefpass( + cblk->mqenc, + bitpos, vcausal, cblk->flags, cblk->data, termmode, + &pass->nmsedec); + else + jpc_encrawrefpass(bout, bitpos, + vcausal, cblk->flags, cblk->data, termmode, + &pass->nmsedec); + break; + case JPC_CLNPASS: + assert(pass->type == JPC_SEG_MQ); + jpc_encclnpass( + cblk->mqenc, bitpos, band->orient, + vcausal, segsym, cblk->flags, cblk->data, termmode, + &pass->nmsedec); + break; + default: + assert(false); + break; + } + + if (pass->type == JPC_SEG_MQ) { + if (pass->term) { + jpc_mqenc_init(cblk->mqenc); + } + jpc_mqenc_getstate(cblk->mqenc, &pass->mqencstate); + pass->end = jas_stream_tell(cblk->stream); + if (tcmpt->cblksty & JPC_COX_RESET) { + jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs); + } + } else { + if (pass->term) { + if (jpc_bitstream_pending(bout)) { + jpc_bitstream_outalign(bout, 0x2a); + } + jpc_bitstream_close(bout); + bout = 0; + pass->end = jas_stream_tell(cblk->stream); + } else { + pass->end = jas_stream_tell(cblk->stream) + + jpc_bitstream_pending(bout); + /* NOTE - This will not work. need to adjust by # of pending + output bytes + */ + } + } #if 0 -/* XXX - This assertion fails sometimes when various coding modes are used. -This seems to be harmless, but why does it happen at all? */ -assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream)); + /* XXX - This assertion fails sometimes when various coding modes are used. + This seems to be harmless, but why does it happen at all? */ + assert(jas_stream_tell(cblk->stream) == + jas_stream_getrwcount(cblk->stream)); #endif - pass->wmsedec = jpc_fixtodbl(band->rlvl->tcmpt->synweight) * - jpc_fixtodbl(band->rlvl->tcmpt->synweight) * - jpc_fixtodbl(band->synweight) * - jpc_fixtodbl(band->synweight) * - jpc_fixtodbl(band->absstepsize) * jpc_fixtodbl(band->absstepsize) * - ((double) (1 << bitpos)) * ((double)(1 << bitpos)) * - jpc_fixtodbl(pass->nmsedec); - pass->cumwmsedec = pass->wmsedec; - if (pass != cblk->passes) { - pass->cumwmsedec += pass[-1].cumwmsedec; - } - if (passtype == JPC_CLNPASS) { - --bitpos; - } - ++pass; - } + pass->wmsedec = jpc_fixtodbl(band->rlvl->tcmpt->synweight) * + jpc_fixtodbl(band->rlvl->tcmpt->synweight) * + jpc_fixtodbl(band->synweight) * + jpc_fixtodbl(band->synweight) * + jpc_fixtodbl(band->absstepsize) * jpc_fixtodbl(band->absstepsize) * + ((double) (1 << bitpos)) * ((double)(1 << bitpos)) * + jpc_fixtodbl(pass->nmsedec); + pass->cumwmsedec = pass->wmsedec; + if (pass != cblk->passes) { + pass->cumwmsedec += pass[-1].cumwmsedec; + } + if (passtype == JPC_CLNPASS) { + --bitpos; + } + ++pass; + } #if 0 -dump_passes(cblk->passes, cblk->numpasses, cblk); + dump_passes(cblk->passes, cblk->numpasses, cblk); #endif - n = 0; - endpasses = &cblk->passes[cblk->numpasses]; - for (pass = cblk->passes; pass != endpasses; ++pass) { - if (pass->start < n) { - pass->start = n; - } - if (pass->end < n) { - pass->end = n; - } - if (!pass->term) { - termpass = pass; - while (termpass - pass < cblk->numpasses && - !termpass->term) { - ++termpass; - } - if (pass->type == JPC_SEG_MQ) { - t = (pass->mqencstate.lastbyte == 0xff) ? 1 : 0; - if (pass->mqencstate.ctreg >= 5) { - adjust = 4 + t; - } else { - adjust = 5 + t; - } - pass->end += adjust; - } - if (pass->end > termpass->end) { - pass->end = termpass->end; - } - if ((c = getthebyte(cblk->stream, pass->end - 1)) == EOF) { - abort(); - } - if (c == 0xff) { - ++pass->end; - } - n = JAS_MAX(n, pass->end); - } else { - n = JAS_MAX(n, pass->end); - } - } + n = 0; + endpasses = &cblk->passes[cblk->numpasses]; + for (pass = cblk->passes; pass != endpasses; ++pass) { + if (pass->start < n) { + pass->start = n; + } + if (pass->end < n) { + pass->end = n; + } + if (!pass->term) { + termpass = pass; + while (termpass - pass < cblk->numpasses && + !termpass->term) { + ++termpass; + } + if (pass->type == JPC_SEG_MQ) { + t = (pass->mqencstate.lastbyte == 0xff) ? 1 : 0; + if (pass->mqencstate.ctreg >= 5) { + adjust = 4 + t; + } else { + adjust = 5 + t; + } + pass->end += adjust; + } + if (pass->end > termpass->end) { + pass->end = termpass->end; + } + if ((c = getthebyte(cblk->stream, pass->end - 1)) == EOF) { + abort(); + } + if (c == 0xff) { + ++pass->end; + } + n = JAS_MAX(n, pass->end); + } else { + n = JAS_MAX(n, pass->end); + } + } #if 0 -dump_passes(cblk->passes, cblk->numpasses, cblk); + dump_passes(cblk->passes, cblk->numpasses, cblk); #endif - if (bout) { - jpc_bitstream_close(bout); - } + if (bout) { + jpc_bitstream_close(bout); + } - return 0; + return 0; } -/******************************************************************************\ + + +/*****************************************************************************\ * Code for significance pass. -\******************************************************************************/ +\*****************************************************************************/ -#define sigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, orient, mqenc, vcausalflag) \ +#define sigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, orient, mqenc, vcausalflag) \ { \ - int f; \ - int v; \ - f = *(fp); \ - if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \ - v = (abs(*(dp)) & (one)) ? 1 : 0; \ - jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \ - jpc_mqenc_putbit(mqenc, v); \ - if (v) { \ - *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \ - v = ((*(dp) < 0) ? 1 : 0); \ - jpc_mqenc_setcurctx(mqenc, JPC_GETSCCTXNO(f)); \ - jpc_mqenc_putbit(mqenc, v ^ JPC_GETSPB(f)); \ - JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \ - *(fp) |= JPC_SIG; \ - } \ - *(fp) |= JPC_VISIT; \ - } \ + int f; \ + int v; \ + f = *(fp); \ + if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \ + v = (abs(*(dp)) & (one)) ? 1 : 0; \ + jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \ + jpc_mqenc_putbit(mqenc, v); \ + if (v) { \ + *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \ + v = ((*(dp) < 0) ? 1 : 0); \ + jpc_mqenc_setcurctx(mqenc, JPC_GETSCCTXNO(f)); \ + jpc_mqenc_putbit(mqenc, v ^ JPC_GETSPB(f)); \ + JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \ + *(fp) |= JPC_SIG; \ + } \ + *(fp) |= JPC_VISIT; \ + } \ } static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec) { - int i; - int j; - int one; - int vscanlen; - int width; - int height; - int frowstep; - int drowstep; - int fstripestep; - int dstripestep; - jpc_fix_t *fstripestart; - jpc_fix_t *dstripestart; - jpc_fix_t *fp; - jpc_fix_t *dp; - jpc_fix_t *fvscanstart; - jpc_fix_t *dvscanstart; - int k; - - *nmsedec = 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 + JPC_NUMEXTRABITS); - - 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; - - sigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, orient, mqenc, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - sigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, orient, mqenc, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - sigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, orient, mqenc, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - sigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, orient, mqenc, 0); - - } - } - - if (term) { - jpc_mqenc_flush(mqenc, term - 1); - } - - return jpc_mqenc_error(mqenc) ? (-1) : 0; + int i; + int j; + int one; + int vscanlen; + int width; + int height; + int frowstep; + int drowstep; + int fstripestep; + int dstripestep; + jpc_fix_t *fstripestart; + jpc_fix_t *dstripestart; + jpc_fix_t *fp; + jpc_fix_t *dp; + jpc_fix_t *fvscanstart; + jpc_fix_t *dvscanstart; + int k; + + *nmsedec = 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 + JPC_NUMEXTRABITS); + + 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; + + sigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, orient, mqenc, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + sigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, orient, mqenc, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + sigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, orient, mqenc, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + sigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, orient, mqenc, 0); + + } + } + + if (term) { + jpc_mqenc_flush(mqenc, term - 1); + } + + return jpc_mqenc_error(mqenc) ? (-1) : 0; } -#define rawsigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, out, vcausalflag) \ +#define rawsigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, out, vcausalflag) \ { \ - jpc_fix_t f = *(fp); \ - jpc_fix_t v; \ - if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \ - v = (abs(*(dp)) & (one)) ? 1 : 0; \ - if ((jpc_bitstream_putbit((out), v)) == EOF) { \ - return -1; \ - } \ - if (v) { \ - *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \ - v = ((*(dp) < 0) ? 1 : 0); \ - if (jpc_bitstream_putbit(out, v) == EOF) { \ - return -1; \ - } \ - JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \ - *(fp) |= JPC_SIG; \ - } \ - *(fp) |= JPC_VISIT; \ - } \ + jpc_fix_t f = *(fp); \ + jpc_fix_t v; \ + if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \ + v = (abs(*(dp)) & (one)) ? 1 : 0; \ + if ((jpc_bitstream_putbit((out), v)) == EOF) { \ + return -1; \ + } \ + if (v) { \ + *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \ + v = ((*(dp) < 0) ? 1 : 0); \ + if (jpc_bitstream_putbit(out, v) == EOF) { \ + return -1; \ + } \ + JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \ + *(fp) |= JPC_SIG; \ + } \ + *(fp) |= JPC_VISIT; \ + } \ } static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec) { - int i; - int j; - int k; - int one; - int vscanlen; - int width; - int height; - int frowstep; - int drowstep; - int fstripestep; - int dstripestep; - jpc_fix_t *fstripestart; - jpc_fix_t *dstripestart; - jpc_fix_t *fp; - jpc_fix_t *dp; - jpc_fix_t *fvscanstart; - jpc_fix_t *dvscanstart; - - *nmsedec = 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 + JPC_NUMEXTRABITS); - - 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; - - rawsigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, out, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - - rawsigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, out, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - - rawsigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, out, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - - rawsigpass_step(fp, frowstep, dp, bitpos, one, - nmsedec, out, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - - } - } - - if (term) { - jpc_bitstream_outalign(out, 0x2a); - } - - return 0; + int i; + int j; + int k; + int one; + int vscanlen; + int width; + int height; + int frowstep; + int drowstep; + int fstripestep; + int dstripestep; + jpc_fix_t *fstripestart; + jpc_fix_t *dstripestart; + jpc_fix_t *fp; + jpc_fix_t *dp; + jpc_fix_t *fvscanstart; + jpc_fix_t *dvscanstart; + + *nmsedec = 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 + JPC_NUMEXTRABITS); + + 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; + + rawsigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, out, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + + rawsigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, out, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + + rawsigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, out, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + + rawsigpass_step(fp, frowstep, dp, bitpos, one, + nmsedec, out, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + + } + } + + if (term) { + jpc_bitstream_outalign(out, 0x2a); + } + + return 0; } /******************************************************************************\ * Code for refinement pass. \******************************************************************************/ -#define refpass_step(fp, dp, bitpos, one, nmsedec, mqenc, vcausalflag) \ +#define refpass_step(fp, dp, bitpos, one, nmsedec, mqenc, vcausalflag) \ { \ - int v; \ - if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \ - (d) = *(dp); \ - *(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \ - jpc_mqenc_setcurctx((mqenc), JPC_GETMAGCTXNO(*(fp))); \ - v = (abs(d) & (one)) ? 1 : 0; \ - jpc_mqenc_putbit((mqenc), v); \ - *(fp) |= JPC_REFINE; \ - } \ + int v; \ + if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \ + (d) = *(dp); \ + *(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \ + jpc_mqenc_setcurctx((mqenc), JPC_GETMAGCTXNO(*(fp))); \ + v = (abs(d) & (one)) ? 1 : 0; \ + jpc_mqenc_putbit((mqenc), v); \ + *(fp) |= JPC_REFINE; \ + } \ } static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec) { - int i; - int j; - int one; - int vscanlen; - int d; - int width; - int height; - int frowstep; - int drowstep; - int fstripestep; - int dstripestep; - jpc_fix_t *fstripestart; - jpc_fix_t *dstripestart; - jpc_fix_t *fvscanstart; - jpc_fix_t *dvscanstart; - jpc_fix_t *dp; - jpc_fix_t *fp; + int i; + int j; + int one; + int vscanlen; + int d; + int width; + int height; + int frowstep; + int drowstep; + int fstripestep; + int dstripestep; + jpc_fix_t *fstripestart; + jpc_fix_t *dstripestart; + jpc_fix_t *fvscanstart; + jpc_fix_t *dvscanstart; + jpc_fix_t *dp; + jpc_fix_t *fp; int k; - *nmsedec = 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 + JPC_NUMEXTRABITS); - - 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; - - refpass_step(fp, dp, bitpos, one, nmsedec, - mqenc, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - refpass_step(fp, dp, bitpos, one, nmsedec, - mqenc, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - refpass_step(fp, dp, bitpos, one, nmsedec, - mqenc, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - refpass_step(fp, dp, bitpos, one, nmsedec, - mqenc, 0); - - } - } - - if (term) { - jpc_mqenc_flush(mqenc, term - 1); - } - - return jpc_mqenc_error(mqenc) ? (-1) : 0; + *nmsedec = 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 + JPC_NUMEXTRABITS); + + 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; + + refpass_step(fp, dp, bitpos, one, nmsedec, + mqenc, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + refpass_step(fp, dp, bitpos, one, nmsedec, + mqenc, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + refpass_step(fp, dp, bitpos, one, nmsedec, + mqenc, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + refpass_step(fp, dp, bitpos, one, nmsedec, + mqenc, 0); + + } + } + + if (term) { + jpc_mqenc_flush(mqenc, term - 1); + } + + return jpc_mqenc_error(mqenc) ? (-1) : 0; } -#define rawrefpass_step(fp, dp, bitpos, one, nmsedec, out, vcausalflag) \ +#define rawrefpass_step(fp, dp, bitpos, one, nmsedec, out, vcausalflag) \ { \ - jpc_fix_t d; \ - jpc_fix_t v; \ - if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \ - d = *(dp); \ - *(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \ - v = (abs(d) & (one)) ? 1 : 0; \ - if (jpc_bitstream_putbit((out), v) == EOF) { \ - return -1; \ - } \ - *(fp) |= JPC_REFINE; \ - } \ + jpc_fix_t d; \ + jpc_fix_t v; \ + if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \ + d = *(dp); \ + *(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \ + v = (abs(d) & (one)) ? 1 : 0; \ + if (jpc_bitstream_putbit((out), v) == EOF) { \ + return -1; \ + } \ + *(fp) |= JPC_REFINE; \ + } \ } static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec) { - int i; - int j; - int k; - int one; - int vscanlen; - int width; - int height; - int frowstep; - int drowstep; - int fstripestep; - int dstripestep; - jpc_fix_t *fstripestart; - jpc_fix_t *dstripestart; - jpc_fix_t *fvscanstart; - jpc_fix_t *dvscanstart; - jpc_fix_t *dp; - jpc_fix_t *fp; - - *nmsedec = 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 + JPC_NUMEXTRABITS); - - 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; - - rawrefpass_step(fp, dp, bitpos, one, nmsedec, - out, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - rawrefpass_step(fp, dp, bitpos, one, nmsedec, - out, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - rawrefpass_step(fp, dp, bitpos, one, nmsedec, - out, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - rawrefpass_step(fp, dp, bitpos, one, nmsedec, - out, vcausalflag); - - } - } - - if (term) { - jpc_bitstream_outalign(out, 0x2a); - } - - return 0; + int i; + int j; + int k; + int one; + int vscanlen; + int width; + int height; + int frowstep; + int drowstep; + int fstripestep; + int dstripestep; + jpc_fix_t *fstripestart; + jpc_fix_t *dstripestart; + jpc_fix_t *fvscanstart; + jpc_fix_t *dvscanstart; + jpc_fix_t *dp; + jpc_fix_t *fp; + + *nmsedec = 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 + JPC_NUMEXTRABITS); + + 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; + + rawrefpass_step(fp, dp, bitpos, one, nmsedec, + out, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + rawrefpass_step(fp, dp, bitpos, one, nmsedec, + out, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + rawrefpass_step(fp, dp, bitpos, one, nmsedec, + out, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + rawrefpass_step(fp, dp, bitpos, one, nmsedec, + out, vcausalflag); + + } + } + + if (term) { + jpc_bitstream_outalign(out, 0x2a); + } + + return 0; } /******************************************************************************\ * Code for cleanup pass. \******************************************************************************/ -#define clnpass_step(fp, frowstep, dp, bitpos, one, orient, nmsedec, mqenc, label1, label2, vcausalflag) \ +#define clnpass_step(fp, frowstep, dp, bitpos, one, orient, nmsedec, mqenc, label1, label2, vcausalflag) \ { \ - int f; \ - int v; \ + int f; \ + int v; \ label1 \ - f = *(fp); \ - if (!(f & (JPC_SIG | JPC_VISIT))) { \ - jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \ - v = (abs(*(dp)) & (one)) ? 1 : 0; \ - jpc_mqenc_putbit((mqenc), v); \ - if (v) { \ + f = *(fp); \ + if (!(f & (JPC_SIG | JPC_VISIT))) { \ + jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \ + v = (abs(*(dp)) & (one)) ? 1 : 0; \ + jpc_mqenc_putbit((mqenc), v); \ + if (v) { \ label2 \ - f = *(fp); \ - /* Coefficient is significant. */ \ - *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \ - jpc_mqenc_setcurctx((mqenc), JPC_GETSCCTXNO(f)); \ - v = ((*(dp) < 0) ? 1 : 0); \ - jpc_mqenc_putbit((mqenc), v ^ JPC_GETSPB(f)); \ - JPC_UPDATEFLAGS4((fp), (frowstep), v, vcausalflag); \ - *(fp) |= JPC_SIG; \ - } \ - } \ - *(fp) &= ~JPC_VISIT; \ + f = *(fp); \ + /* Coefficient is significant. */ \ + *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \ + jpc_mqenc_setcurctx((mqenc), JPC_GETSCCTXNO(f)); \ + v = ((*(dp) < 0) ? 1 : 0); \ + jpc_mqenc_putbit((mqenc), v ^ JPC_GETSPB(f)); \ + JPC_UPDATEFLAGS4((fp), (frowstep), v, vcausalflag); \ + *(fp) |= JPC_SIG; \ + } \ + } \ + *(fp) &= ~JPC_VISIT; \ } static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag, int segsymflag, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec) { - int i; - int j; - int k; - int vscanlen; - int v; - int runlen; - jpc_fix_t *fp; - int width; - int height; - jpc_fix_t *dp; - int one; - int frowstep; - int drowstep; - int fstripestep; - int dstripestep; - jpc_fix_t *fstripestart; - jpc_fix_t *dstripestart; - jpc_fix_t *fvscanstart; - jpc_fix_t *dvscanstart; - - *nmsedec = 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 + JPC_NUMEXTRABITS); - - 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; - 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)))) { - dp = dvscanstart; - for (k = 0; k < vscanlen; ++k) { - v = (abs(*dp) & one) ? 1 : 0; - if (v) { - break; - } - dp += drowstep; - } - runlen = k; - if (runlen >= 4) { - jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO); - jpc_mqenc_putbit(mqenc, 0); - continue; - } - jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO); - jpc_mqenc_putbit(mqenc, 1); - jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO); - jpc_mqenc_putbit(mqenc, runlen >> 1); - jpc_mqenc_putbit(mqenc, runlen & 1); - fp = fvscanstart + frowstep * runlen; - dp = dvscanstart + drowstep * runlen; - k = vscanlen - runlen; - switch (runlen) { - case 0: - goto clnpass_partial0; - break; - case 1: - goto clnpass_partial1; - break; - case 2: - goto clnpass_partial2; - break; - case 3: - goto clnpass_partial3; - break; - } - } else { - runlen = 0; - fp = fvscanstart; - dp = dvscanstart; - k = vscanlen; - goto clnpass_full0; - } - clnpass_step(fp, frowstep, dp, bitpos, one, - orient, nmsedec, mqenc, clnpass_full0:, clnpass_partial0:, vcausalflag); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - clnpass_step(fp, frowstep, dp, bitpos, one, - orient, nmsedec, mqenc, ;, clnpass_partial1:, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - clnpass_step(fp, frowstep, dp, bitpos, one, - orient, nmsedec, mqenc, ;, clnpass_partial2:, 0); - if (--k <= 0) { - continue; - } - fp += frowstep; - dp += drowstep; - clnpass_step(fp, frowstep, dp, bitpos, one, - orient, nmsedec, mqenc, ;, clnpass_partial3:, 0); - } - } - - if (segsymflag) { - jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO); - jpc_mqenc_putbit(mqenc, 1); - jpc_mqenc_putbit(mqenc, 0); - jpc_mqenc_putbit(mqenc, 1); - jpc_mqenc_putbit(mqenc, 0); - } - - if (term) { - jpc_mqenc_flush(mqenc, term - 1); - } - - return jpc_mqenc_error(mqenc) ? (-1) : 0; + int i; + int j; + int k; + int vscanlen; + int v; + int runlen; + jpc_fix_t *fp; + int width; + int height; + jpc_fix_t *dp; + int one; + int frowstep; + int drowstep; + int fstripestep; + int dstripestep; + jpc_fix_t *fstripestart; + jpc_fix_t *dstripestart; + jpc_fix_t *fvscanstart; + jpc_fix_t *dvscanstart; + + *nmsedec = 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 + JPC_NUMEXTRABITS); + + 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; + 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)))) { + dp = dvscanstart; + for (k = 0; k < vscanlen; ++k) { + v = (abs(*dp) & one) ? 1 : 0; + if (v) { + break; + } + dp += drowstep; + } + runlen = k; + if (runlen >= 4) { + jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO); + jpc_mqenc_putbit(mqenc, 0); + continue; + } + jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO); + jpc_mqenc_putbit(mqenc, 1); + jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO); + jpc_mqenc_putbit(mqenc, runlen >> 1); + jpc_mqenc_putbit(mqenc, runlen & 1); + fp = fvscanstart + frowstep * runlen; + dp = dvscanstart + drowstep * runlen; + k = vscanlen - runlen; + switch (runlen) { + case 0: + goto clnpass_partial0; + break; + case 1: + goto clnpass_partial1; + break; + case 2: + goto clnpass_partial2; + break; + case 3: + goto clnpass_partial3; + break; + } + } else { + runlen = 0; + fp = fvscanstart; + dp = dvscanstart; + k = vscanlen; + goto clnpass_full0; + } + clnpass_step(fp, frowstep, dp, bitpos, one, + orient, nmsedec, mqenc, clnpass_full0:, clnpass_partial0:, vcausalflag); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + clnpass_step(fp, frowstep, dp, bitpos, one, + orient, nmsedec, mqenc, ;, clnpass_partial1:, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + clnpass_step(fp, frowstep, dp, bitpos, one, + orient, nmsedec, mqenc, ;, clnpass_partial2:, 0); + if (--k <= 0) { + continue; + } + fp += frowstep; + dp += drowstep; + clnpass_step(fp, frowstep, dp, bitpos, one, + orient, nmsedec, mqenc, ;, clnpass_partial3:, 0); + } + } + + if (segsymflag) { + jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO); + jpc_mqenc_putbit(mqenc, 1); + jpc_mqenc_putbit(mqenc, 0); + jpc_mqenc_putbit(mqenc, 1); + jpc_mqenc_putbit(mqenc, 0); + } + + if (term) { + jpc_mqenc_flush(mqenc, term - 1); + } + + return jpc_mqenc_error(mqenc) ? (-1) : 0; } |