2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
4 * Copyright (c) 2001-2002 Michael David Adams.
8 /* __START_OF_JASPER_LICENSE__
10 * JasPer License Version 2.0
12 * Copyright (c) 1999-2000 Image Power, Inc.
13 * Copyright (c) 1999-2000 The University of British Columbia
14 * Copyright (c) 2001-2003 Michael David Adams
16 * All rights reserved.
18 * Permission is hereby granted, free of charge, to any person (the
19 * "User") obtaining a copy of this software and associated documentation
20 * files (the "Software"), to deal in the Software without restriction,
21 * including without limitation the rights to use, copy, modify, merge,
22 * publish, distribute, and/or sell copies of the Software, and to permit
23 * persons to whom the Software is furnished to do so, subject to the
24 * following conditions:
26 * 1. The above copyright notices and this permission notice (which
27 * includes the disclaimer below) shall be included in all copies or
28 * substantial portions of the Software.
30 * 2. The name of a copyright holder shall not be used to endorse or
31 * promote products derived from the Software without specific prior
34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
61 * __END_OF_JASPER_LICENSE__
67 * $Id: jpc_t1enc.c,v 1.4 2005/06/09 22:09:41 malaterre Exp $
70 /******************************************************************************\
72 \******************************************************************************/
78 #include "jasper/jas_fix.h"
79 #include "jasper/jas_malloc.h"
80 #include "jasper/jas_math.h"
82 #include "jpc_t1enc.h"
83 #include "jpc_t1cod.h"
88 static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int,
89 jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
91 static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int, jas_matrix_t *flags,
92 jas_matrix_t *data, int term, long *nmsedec);
94 static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int,
95 int, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
97 static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int,
98 jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
100 static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int,
101 jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
103 /******************************************************************************\
104 * Code for encoding code blocks.
105 \******************************************************************************/
107 /* Encode all of the code blocks associated with the current tile. */
108 int jpc_enc_enccblks(jpc_enc_t *enc)
110 jpc_enc_tcmpt_t *tcmpt;
111 jpc_enc_tcmpt_t *endcomps;
113 jpc_enc_rlvl_t *endlvls;
114 jpc_enc_band_t *band;
115 jpc_enc_band_t *endbands;
116 jpc_enc_cblk_t *cblk;
117 jpc_enc_cblk_t *endcblks;
123 jpc_enc_tile_t *tile;
129 endcomps = &tile->tcmpts[tile->numtcmpts];
130 for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) {
131 endlvls = &tcmpt->rlvls[tcmpt->numrlvls];
132 for (lvl = tcmpt->rlvls; lvl != endlvls; ++lvl) {
136 endbands = &lvl->bands[lvl->numbands];
137 for (band = lvl->bands; band != endbands; ++band) {
141 for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
146 endcblks = &prc->cblks[prc->numcblks];
147 for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
149 for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) {
150 for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) {
151 v = abs(jas_matrix_get(cblk->data, i, j));
160 cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0);
163 for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
164 cblk->numimsbs = band->numbps - cblk->numbps;
165 assert(cblk->numimsbs >= 0);
168 for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
169 if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) {
180 int getthebyte(jas_stream_t *in, long off)
184 oldpos = jas_stream_tell(in);
186 jas_stream_seek(in, off, SEEK_SET);
187 c = jas_stream_peekc(in);
188 jas_stream_seek(in, oldpos, SEEK_SET);
192 /* Encode a single code block. */
193 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)
195 jpc_enc_pass_t *pass;
196 jpc_enc_pass_t *endpasses;
203 jpc_bitstream_t *bout;
204 jpc_enc_pass_t *termpass;
215 cblk->stream = jas_stream_memopen(0, 0);
216 assert(cblk->stream);
217 cblk->mqenc = jpc_mqenc_create(JPC_NUMCTXS, cblk->stream);
219 jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs);
221 cblk->numpasses = (cblk->numbps > 0) ? (3 * cblk->numbps - 2) : 0;
222 if (cblk->numpasses > 0) {
223 cblk->passes = jas_malloc(cblk->numpasses * sizeof(jpc_enc_pass_t));
224 assert(cblk->passes);
228 endpasses = &cblk->passes[cblk->numpasses];
229 for (pass = cblk->passes; pass != endpasses; ++pass) {
232 pass->term = JPC_ISTERMINATED(pass - cblk->passes, 0, cblk->numpasses, (tcmpt->cblksty & JPC_COX_TERMALL) != 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0);
233 pass->type = JPC_SEGTYPE(pass - cblk->passes, 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0);
235 if (pass == endpasses - 1) {
236 assert(pass->term == 1);
241 cblk->flags = jas_matrix_create(jas_matrix_numrows(cblk->data) + 2,
242 jas_matrix_numcols(cblk->data) + 2);
246 bitpos = cblk->numbps - 1;
251 if (pass->type == JPC_SEG_MQ) {
254 assert(pass->type == JPC_SEG_RAW);
256 bout = jpc_bitstream_sopen(cblk->stream, "w");
262 passtype = (pass - cblk->passes + 2) % 3;
264 passtype = JPC_PASSTYPE(pass - cblk->passes + 2);
266 pass->start = jas_stream_tell(cblk->stream);
268 assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream));
271 vcausal = (tcmpt->cblksty & JPC_COX_VSC) != 0;
272 segsym = (tcmpt->cblksty & JPC_COX_SEGSYM) != 0;
274 termmode = ((tcmpt->cblksty & JPC_COX_PTERM) ?
275 JPC_MQENC_PTERM : JPC_MQENC_DEFTERM) + 1;
281 ret = (pass->type == JPC_SEG_MQ) ? jpc_encsigpass(cblk->mqenc,
282 bitpos, band->orient, vcausal, cblk->flags,
283 cblk->data, termmode, &pass->nmsedec) :
284 jpc_encrawsigpass(bout, bitpos, vcausal, cblk->flags,
285 cblk->data, termmode, &pass->nmsedec);
288 ret = (pass->type == JPC_SEG_MQ) ? jpc_encrefpass(cblk->mqenc,
289 bitpos, vcausal, cblk->flags, cblk->data, termmode,
290 &pass->nmsedec) : jpc_encrawrefpass(bout, bitpos,
291 vcausal, cblk->flags, cblk->data, termmode,
295 assert(pass->type == JPC_SEG_MQ);
296 ret = jpc_encclnpass(cblk->mqenc, bitpos, band->orient,
297 vcausal, segsym, cblk->flags, cblk->data, termmode,
305 if (pass->type == JPC_SEG_MQ) {
307 jpc_mqenc_init(cblk->mqenc);
309 jpc_mqenc_getstate(cblk->mqenc, &pass->mqencstate);
310 pass->end = jas_stream_tell(cblk->stream);
311 if (tcmpt->cblksty & JPC_COX_RESET) {
312 jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs);
316 if (jpc_bitstream_pending(bout)) {
317 jpc_bitstream_outalign(bout, 0x2a);
319 jpc_bitstream_close(bout);
321 pass->end = jas_stream_tell(cblk->stream);
323 pass->end = jas_stream_tell(cblk->stream) +
324 jpc_bitstream_pending(bout);
325 /* NOTE - This will not work. need to adjust by # of pending output bytes */
329 /* XXX - This assertion fails sometimes when various coding modes are used.
330 This seems to be harmless, but why does it happen at all? */
331 assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream));
334 pass->wmsedec = jpc_fixtodbl(band->rlvl->tcmpt->synweight) *
335 jpc_fixtodbl(band->rlvl->tcmpt->synweight) *
336 jpc_fixtodbl(band->synweight) *
337 jpc_fixtodbl(band->synweight) *
338 jpc_fixtodbl(band->absstepsize) * jpc_fixtodbl(band->absstepsize) *
339 ((double) (1 << bitpos)) * ((double)(1 << bitpos)) *
340 jpc_fixtodbl(pass->nmsedec);
341 pass->cumwmsedec = pass->wmsedec;
342 if (pass != cblk->passes) {
343 pass->cumwmsedec += pass[-1].cumwmsedec;
345 if (passtype == JPC_CLNPASS) {
352 dump_passes(cblk->passes, cblk->numpasses, cblk);
356 endpasses = &cblk->passes[cblk->numpasses];
357 for (pass = cblk->passes; pass != endpasses; ++pass) {
358 if (pass->start < n) {
366 while (termpass - pass < cblk->numpasses &&
370 if (pass->type == JPC_SEG_MQ) {
371 t = (pass->mqencstate.lastbyte == 0xff) ? 1 : 0;
372 if (pass->mqencstate.ctreg >= 5) {
379 if (pass->end > termpass->end) {
380 pass->end = termpass->end;
382 if ((c = getthebyte(cblk->stream, pass->end - 1)) == EOF) {
388 n = JAS_MAX(n, pass->end);
390 n = JAS_MAX(n, pass->end);
395 dump_passes(cblk->passes, cblk->numpasses, cblk);
399 jpc_bitstream_close(bout);
402 (void)ret; /* 'ret' is assigned a value that is never used in function jpc_enc_enccblk*/
406 /******************************************************************************\
407 * Code for significance pass.
408 \******************************************************************************/
410 #define sigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, orient, mqenc, vcausalflag) \
415 if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
416 v = (abs(*(dp)) & (one)) ? 1 : 0; \
417 jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \
418 jpc_mqenc_putbit(mqenc, v); \
420 *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
421 v = ((*(dp) < 0) ? 1 : 0); \
422 jpc_mqenc_setcurctx(mqenc, JPC_GETSCCTXNO(f)); \
423 jpc_mqenc_putbit(mqenc, v ^ JPC_GETSPB(f)); \
424 JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \
427 *(fp) |= JPC_VISIT; \
431 static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag,
432 jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec)
444 jpc_fix_t *fstripestart;
445 jpc_fix_t *dstripestart;
448 jpc_fix_t *fvscanstart;
449 jpc_fix_t *dvscanstart;
453 width = jas_matrix_numcols(data);
454 height = jas_matrix_numrows(data);
455 frowstep = jas_matrix_rowstep(flags);
456 drowstep = jas_matrix_rowstep(data);
457 fstripestep = frowstep << 2;
458 dstripestep = drowstep << 2;
460 one = 1 << (bitpos + JPC_NUMEXTRABITS);
462 fstripestart = jas_matrix_getref(flags, 1, 1);
463 dstripestart = jas_matrix_getref(data, 0, 0);
464 for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
465 dstripestart += dstripestep) {
466 fvscanstart = fstripestart;
467 dvscanstart = dstripestart;
468 vscanlen = JAS_MIN(i, 4);
469 for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
474 sigpass_step(fp, frowstep, dp, bitpos, one,
475 nmsedec, orient, mqenc, vcausalflag);
481 sigpass_step(fp, frowstep, dp, bitpos, one,
482 nmsedec, orient, mqenc, 0);
488 sigpass_step(fp, frowstep, dp, bitpos, one,
489 nmsedec, orient, mqenc, 0);
495 sigpass_step(fp, frowstep, dp, bitpos, one,
496 nmsedec, orient, mqenc, 0);
502 jpc_mqenc_flush(mqenc, term - 1);
505 return jpc_mqenc_error(mqenc) ? (-1) : 0;
508 #define rawsigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, out, vcausalflag) \
510 jpc_fix_t f = *(fp); \
512 if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
513 v = (abs(*(dp)) & (one)) ? 1 : 0; \
514 if ((jpc_bitstream_putbit((out), v)) == EOF) { \
518 *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
519 v = ((*(dp) < 0) ? 1 : 0); \
520 if (jpc_bitstream_putbit(out, v) == EOF) { \
523 JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \
526 *(fp) |= JPC_VISIT; \
530 static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags,
531 jas_matrix_t *data, int term, long *nmsedec)
544 jpc_fix_t *fstripestart;
545 jpc_fix_t *dstripestart;
548 jpc_fix_t *fvscanstart;
549 jpc_fix_t *dvscanstart;
552 width = jas_matrix_numcols(data);
553 height = jas_matrix_numrows(data);
554 frowstep = jas_matrix_rowstep(flags);
555 drowstep = jas_matrix_rowstep(data);
556 fstripestep = frowstep << 2;
557 dstripestep = drowstep << 2;
559 one = 1 << (bitpos + JPC_NUMEXTRABITS);
561 fstripestart = jas_matrix_getref(flags, 1, 1);
562 dstripestart = jas_matrix_getref(data, 0, 0);
563 for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
564 dstripestart += dstripestep) {
565 fvscanstart = fstripestart;
566 dvscanstart = dstripestart;
567 vscanlen = JAS_MIN(i, 4);
568 for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
573 rawsigpass_step(fp, frowstep, dp, bitpos, one,
574 nmsedec, out, vcausalflag);
581 rawsigpass_step(fp, frowstep, dp, bitpos, one,
589 rawsigpass_step(fp, frowstep, dp, bitpos, one,
597 rawsigpass_step(fp, frowstep, dp, bitpos, one,
609 jpc_bitstream_outalign(out, 0x2a);
615 /******************************************************************************\
616 * Code for refinement pass.
617 \******************************************************************************/
619 #define refpass_step(fp, dp, bitpos, one, nmsedec, mqenc, vcausalflag) \
622 if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
624 *(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \
625 jpc_mqenc_setcurctx((mqenc), JPC_GETMAGCTXNO(*(fp))); \
626 v = (abs(d) & (one)) ? 1 : 0; \
627 jpc_mqenc_putbit((mqenc), v); \
628 *(fp) |= JPC_REFINE; \
632 static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data,
633 int term, long *nmsedec)
646 jpc_fix_t *fstripestart;
647 jpc_fix_t *dstripestart;
648 jpc_fix_t *fvscanstart;
649 jpc_fix_t *dvscanstart;
657 width = jas_matrix_numcols(data);
658 height = jas_matrix_numrows(data);
659 frowstep = jas_matrix_rowstep(flags);
660 drowstep = jas_matrix_rowstep(data);
661 fstripestep = frowstep << 2;
662 dstripestep = drowstep << 2;
664 one = 1 << (bitpos + JPC_NUMEXTRABITS);
666 fstripestart = jas_matrix_getref(flags, 1, 1);
667 dstripestart = jas_matrix_getref(data, 0, 0);
668 for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
669 dstripestart += dstripestep) {
670 fvscanstart = fstripestart;
671 dvscanstart = dstripestart;
672 vscanlen = JAS_MIN(i, 4);
673 for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
678 refpass_step(fp, dp, bitpos, one, nmsedec,
685 refpass_step(fp, dp, bitpos, one, nmsedec,
692 refpass_step(fp, dp, bitpos, one, nmsedec,
699 refpass_step(fp, dp, bitpos, one, nmsedec,
706 jpc_mqenc_flush(mqenc, term - 1);
709 return jpc_mqenc_error(mqenc) ? (-1) : 0;
712 #define rawrefpass_step(fp, dp, bitpos, one, nmsedec, out, vcausalflag) \
716 if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
718 *(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \
719 v = (abs(d) & (one)) ? 1 : 0; \
720 if (jpc_bitstream_putbit((out), v) == EOF) { \
723 *(fp) |= JPC_REFINE; \
727 static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags,
728 jas_matrix_t *data, int term, long *nmsedec)
741 jpc_fix_t *fstripestart;
742 jpc_fix_t *dstripestart;
743 jpc_fix_t *fvscanstart;
744 jpc_fix_t *dvscanstart;
751 width = jas_matrix_numcols(data);
752 height = jas_matrix_numrows(data);
753 frowstep = jas_matrix_rowstep(flags);
754 drowstep = jas_matrix_rowstep(data);
755 fstripestep = frowstep << 2;
756 dstripestep = drowstep << 2;
758 one = 1 << (bitpos + JPC_NUMEXTRABITS);
760 fstripestart = jas_matrix_getref(flags, 1, 1);
761 dstripestart = jas_matrix_getref(data, 0, 0);
762 for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
763 dstripestart += dstripestep) {
764 fvscanstart = fstripestart;
765 dvscanstart = dstripestart;
766 vscanlen = JAS_MIN(i, 4);
767 for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
772 rawrefpass_step(fp, dp, bitpos, one, nmsedec,
779 rawrefpass_step(fp, dp, bitpos, one, nmsedec,
786 rawrefpass_step(fp, dp, bitpos, one, nmsedec,
793 rawrefpass_step(fp, dp, bitpos, one, nmsedec,
800 jpc_bitstream_outalign(out, 0x2a);
806 /******************************************************************************\
807 * Code for cleanup pass.
808 \******************************************************************************/
810 #define clnpass_step(fp, frowstep, dp, bitpos, one, orient, nmsedec, mqenc, label1, label2, vcausalflag) \
816 if (!(f & (JPC_SIG | JPC_VISIT))) { \
817 jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \
818 v = (abs(*(dp)) & (one)) ? 1 : 0; \
819 jpc_mqenc_putbit((mqenc), v); \
823 /* Coefficient is significant. */ \
824 *(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
825 jpc_mqenc_setcurctx((mqenc), JPC_GETSCCTXNO(f)); \
826 v = ((*(dp) < 0) ? 1 : 0); \
827 jpc_mqenc_putbit((mqenc), v ^ JPC_GETSPB(f)); \
828 JPC_UPDATEFLAGS4((fp), (frowstep), v, vcausalflag); \
832 *(fp) &= ~JPC_VISIT; \
835 static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag, int segsymflag, jas_matrix_t *flags,
836 jas_matrix_t *data, int term, long *nmsedec)
853 jpc_fix_t *fstripestart;
854 jpc_fix_t *dstripestart;
855 jpc_fix_t *fvscanstart;
856 jpc_fix_t *dvscanstart;
859 width = jas_matrix_numcols(data);
860 height = jas_matrix_numrows(data);
861 frowstep = jas_matrix_rowstep(flags);
862 drowstep = jas_matrix_rowstep(data);
863 fstripestep = frowstep << 2;
864 dstripestep = drowstep << 2;
866 one = 1 << (bitpos + JPC_NUMEXTRABITS);
868 fstripestart = jas_matrix_getref(flags, 1, 1);
869 dstripestart = jas_matrix_getref(data, 0, 0);
870 for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
871 dstripestart += dstripestep) {
872 fvscanstart = fstripestart;
873 dvscanstart = dstripestart;
874 vscanlen = JAS_MIN(i, 4);
875 for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
878 if (vscanlen >= 4 && !((*fp) & (JPC_SIG | JPC_VISIT |
879 JPC_OTHSIGMSK)) && (fp += frowstep, !((*fp) & (JPC_SIG |
880 JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep, !((*fp) &
881 (JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep,
882 !((*fp) & (JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK)))) {
884 for (k = 0; k < vscanlen; ++k) {
885 v = (abs(*dp) & one) ? 1 : 0;
893 jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO);
894 jpc_mqenc_putbit(mqenc, 0);
897 jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO);
898 jpc_mqenc_putbit(mqenc, 1);
899 jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO);
900 jpc_mqenc_putbit(mqenc, runlen >> 1);
901 jpc_mqenc_putbit(mqenc, runlen & 1);
902 fp = fvscanstart + frowstep * runlen;
903 dp = dvscanstart + drowstep * runlen;
904 k = vscanlen - runlen;
907 goto clnpass_partial0;
910 goto clnpass_partial1;
913 goto clnpass_partial2;
916 goto clnpass_partial3;
926 clnpass_step(fp, frowstep, dp, bitpos, one,
927 orient, nmsedec, mqenc, clnpass_full0:, clnpass_partial0:, vcausalflag);
933 clnpass_step(fp, frowstep, dp, bitpos, one,
934 orient, nmsedec, mqenc, ;, clnpass_partial1:, 0);
940 clnpass_step(fp, frowstep, dp, bitpos, one,
941 orient, nmsedec, mqenc, ;, clnpass_partial2:, 0);
947 clnpass_step(fp, frowstep, dp, bitpos, one,
948 orient, nmsedec, mqenc, ;, clnpass_partial3:, 0);
953 jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO);
954 jpc_mqenc_putbit(mqenc, 1);
955 jpc_mqenc_putbit(mqenc, 0);
956 jpc_mqenc_putbit(mqenc, 1);
957 jpc_mqenc_putbit(mqenc, 0);
961 jpc_mqenc_flush(mqenc, term - 1);
964 return jpc_mqenc_error(mqenc) ? (-1) : 0;