diff options
Diffstat (limited to 'osframework/source/ImageLib/jpeg2000/jpc_t1enc.c')
| -rw-r--r-- | osframework/source/ImageLib/jpeg2000/jpc_t1enc.c | 1008 |
1 files changed, 1008 insertions, 0 deletions
diff --git a/osframework/source/ImageLib/jpeg2000/jpc_t1enc.c b/osframework/source/ImageLib/jpeg2000/jpc_t1enc.c new file mode 100644 index 0000000..2ad1f99 --- /dev/null +++ b/osframework/source/ImageLib/jpeg2000/jpc_t1enc.c @@ -0,0 +1,1008 @@ +/*
+ * 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 Software License
+ *
+ * IMAGE POWER JPEG-2000 PUBLIC LICENSE
+ * ************************************
+ *
+ * GRANT:
+ *
+ * Permission is hereby granted, free of charge, to any person (the "User")
+ * obtaining a copy of this software and associated documentation, to deal
+ * in the JasPer Software without restriction, including without limitation
+ * the right to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the JasPer Software (in source and binary forms),
+ * and to permit persons to whom the JasPer Software is furnished to do so,
+ * provided further that the License Conditions below are met.
+ *
+ * License Conditions
+ * ******************
+ *
+ * A. Redistributions of source code must retain the above copyright notice,
+ * and this list of conditions, and the following disclaimer.
+ *
+ * B. Redistributions in binary form must reproduce the above copyright
+ * notice, and this list of conditions, and the following disclaimer in
+ * the documentation and/or other materials provided with the distribution.
+ *
+ * C. Neither the name of Image Power, Inc. nor any other contributor
+ * (including, but not limited to, the University of British Columbia and
+ * Michael David Adams) may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * D. User agrees that it shall not commence any action against Image Power,
+ * Inc., the University of British Columbia, Michael David Adams, or any
+ * other contributors (collectively "Licensors") for infringement of any
+ * intellectual property rights ("IPR") held by the User in respect of any
+ * technology that User owns or has a right to license or sublicense and
+ * which is an element required in order to claim compliance with ISO/IEC
+ * 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property
+ * rights worldwide arising under statutory or common law, and whether
+ * or not perfected, including, without limitation, all (i) patents and
+ * patent applications owned or licensable by User; (ii) rights associated
+ * with works of authorship including copyrights, copyright applications,
+ * copyright registrations, mask work rights, mask work applications,
+ * mask work registrations; (iii) rights relating to the protection of
+ * trade secrets and confidential information; (iv) any right analogous
+ * to those set forth in subsections (i), (ii), or (iii) and any other
+ * proprietary rights relating to intangible property (other than trademark,
+ * trade dress, or service mark rights); and (v) divisions, continuations,
+ * renewals, reissues and extensions of the foregoing (as and to the extent
+ * applicable) now existing, hereafter filed, issued or acquired.
+ *
+ * E. If User commences an infringement action against any Licensor(s) then
+ * such Licensor(s) shall have the right to terminate User's license and
+ * all sublicenses that have been granted hereunder by User to other parties.
+ *
+ * F. This software is for use only in hardware or software products that
+ * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license
+ * or right to this Software is granted for products that do not comply
+ * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased
+ * from the ISO.
+ *
+ * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
+ * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
+ * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND
+ * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY
+ * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,
+ * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,
+ * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING
+ * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE
+ * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING
+ * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
+ * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE
+ * IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE
+ * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY
+ * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY
+ * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,
+ * REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,
+ * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE
+ * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,
+ * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE
+ * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO
+ * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
+ * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,
+ * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
+ * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF
+ * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY
+ * OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT
+ * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR
+ * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING
+ * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,
+ * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT
+ * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
+ * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY
+ * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE
+ * ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS
+ * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT
+ * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING
+ * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS
+ * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE
+ * NOTICE SPECIFIED IN THIS SECTION.
+ *
+ * __END_OF_JASPER_LICENSE__
+ */
+
+/*
+ * Tier 1 Encoder
+ *
+ * $Id: jpc_t1enc.c,v 1.1 2003/05/15 01:30:32 ace Exp $
+ */
+
+/******************************************************************************\
+* Includes.
+\******************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "jas_fix.h"
+#include "jas_malloc.h"
+#include "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;
+}
|