diff options
Diffstat (limited to 'src/3rdparty/jasper/src/libjasper/jpc/jpc_t1enc.c')
| -rw-r--r-- | src/3rdparty/jasper/src/libjasper/jpc/jpc_t1enc.c | 959 |
1 files changed, 0 insertions, 959 deletions
diff --git a/src/3rdparty/jasper/src/libjasper/jpc/jpc_t1enc.c b/src/3rdparty/jasper/src/libjasper/jpc/jpc_t1enc.c deleted file mode 100644 index 01333bb..0000000 --- a/src/3rdparty/jasper/src/libjasper/jpc/jpc_t1enc.c +++ /dev/null @@ -1,959 +0,0 @@ -/* - * 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) 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 1 Encoder - * - * $Id$ - */ - -/******************************************************************************\ -* Includes. -\******************************************************************************/ - -#include <stdio.h> -#include <stdlib.h> -#include <assert.h> - -#include "jasper/jas_fix.h" -#include "jasper/jas_malloc.h" -#include "jasper/jas_math.h" - -#include "jpc_t1enc.h" -#include "jpc_t1cod.h" -#include "jpc_enc.h" -#include "jpc_cod.h" -#include "jpc_math.h" - -static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int, - jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec); - -static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int, jas_matrix_t *flags, - jas_matrix_t *data, int term, long *nmsedec); - -static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int, - int, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec); - -static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int, - jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec); - -static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int, - jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec); - -/******************************************************************************\ -* Code for encoding code blocks. -\******************************************************************************/ - -/* 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; -} - -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; -} - -/* 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); - } - } - -#if 1 - passtype = (pass - cblk->passes + 2) % 3; -#else - passtype = JPC_PASSTYPE(pass - cblk->passes + 2); -#endif - 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 */ - } - } -#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)); -#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; - } - -#if 0 -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); - } - } - -#if 0 -dump_passes(cblk->passes, cblk->numpasses, cblk); -#endif - - if (bout) { - jpc_bitstream_close(bout); - } - - return 0; -} - -/******************************************************************************\ -* Code for significance pass. -\******************************************************************************/ - -#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; \ - } \ -} - -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; -} - -#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; \ - } \ -} - -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; -} - -/******************************************************************************\ -* Code for refinement pass. -\******************************************************************************/ - -#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; \ - } \ -} - -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 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; -} - -#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; \ - } \ -} - -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; -} - -/******************************************************************************\ -* Code for cleanup pass. -\******************************************************************************/ - -#define clnpass_step(fp, frowstep, dp, bitpos, one, orient, nmsedec, mqenc, label1, label2, vcausalflag) \ -{ \ - 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) { \ -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; \ -} - -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; -} |