| /* |
| * 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 |
| * |
| * $Id$ |
| */ |
| |
| /******************************************************************************\ |
| * 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; |
| } |