+++ /dev/null
-/*
- * 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: jpc_t1enc.c,v 1.2 2008/05/26 09:40:52 vp153 Exp $
- */
-
-/******************************************************************************\
-* 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;
-}
projects / opencv / blobdiff