2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
33 #include "opj_includes.h"
36 /** @defgroup T1 T1 - Implementation of the tier-1 coding */
39 /** @name Local static functions */
42 static INLINE char t1_getctxno_zc(int f, int orient);
43 static char t1_getctxno_sc(int f);
44 static INLINE int t1_getctxno_mag(int f);
45 static char t1_getspb(int f);
46 static short t1_getnmsedec_sig(int x, int bitpos);
47 static short t1_getnmsedec_ref(int x, int bitpos);
48 static void t1_updateflags(flag_t *flagsp, int s, int stride);
50 Encode significant pass
52 static void t1_enc_sigpass_step(
63 Decode significant pass
65 static INLINE void t1_dec_sigpass_step_raw(
72 static INLINE void t1_dec_sigpass_step_mqc(
78 static INLINE void t1_dec_sigpass_step_mqc_vsc(
86 Encode significant pass
88 static void t1_enc_sigpass(
96 Decode significant pass
98 static void t1_dec_sigpass_raw(
103 static void t1_dec_sigpass_mqc(
107 static void t1_dec_sigpass_mqc_vsc(
112 Encode refinement pass
114 static void t1_enc_refpass_step(
124 Decode refinement pass
126 static INLINE void t1_dec_refpass_step_raw(
133 static INLINE void t1_dec_refpass_step_mqc(
139 static INLINE void t1_dec_refpass_step_mqc_vsc(
148 Encode refinement pass
150 static void t1_enc_refpass(
157 Decode refinement pass
159 static void t1_dec_refpass_raw(
163 static void t1_dec_refpass_mqc(
166 static void t1_dec_refpass_mqc_vsc(
172 static void t1_enc_clnpass_step(
185 static void t1_dec_clnpass_step_partial(
191 static void t1_dec_clnpass_step(
197 static void t1_dec_clnpass_step_vsc(
208 static void t1_enc_clnpass(
217 static void t1_dec_clnpass(
222 static double t1_getwmsedec(
235 @param cblk Code-block coding parameters
237 @param compno Component number
241 @param cblksty Code-block style
246 static void t1_encode_cblk(
248 opj_tcd_cblk_enc_t* cblk,
257 opj_tcd_tile_t * tile);
261 @param cblk Code-block coding parameters
263 @param roishift Region of interest shifting value
264 @param cblksty Code-block style
266 static void t1_decode_cblk(
268 opj_tcd_cblk_dec_t* cblk,
277 /* ----------------------------------------------------------------------- */
279 static char t1_getctxno_zc(int f, int orient) {
280 return lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)];
283 static char t1_getctxno_sc(int f) {
284 return lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
287 static int t1_getctxno_mag(int f) {
288 int tmp1 = (f & T1_SIG_OTH) ? T1_CTXNO_MAG + 1 : T1_CTXNO_MAG;
289 int tmp2 = (f & T1_REFINE) ? T1_CTXNO_MAG + 2 : tmp1;
293 static char t1_getspb(int f) {
294 return lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
297 static short t1_getnmsedec_sig(int x, int bitpos) {
298 if (bitpos > T1_NMSEDEC_FRACBITS) {
299 return lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)];
302 return lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
305 static short t1_getnmsedec_ref(int x, int bitpos) {
306 if (bitpos > T1_NMSEDEC_FRACBITS) {
307 return lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)];
310 return lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
313 static void t1_updateflags(flag_t *flagsp, int s, int stride) {
314 flag_t *np = flagsp - stride;
315 flag_t *sp = flagsp + stride;
317 static const flag_t mod[] = {
318 T1_SIG_S, T1_SIG_S|T1_SGN_S,
319 T1_SIG_E, T1_SIG_E|T1_SGN_E,
320 T1_SIG_W, T1_SIG_W|T1_SGN_W,
321 T1_SIG_N, T1_SIG_N|T1_SGN_N
328 flagsp[-1] |= mod[s+2];
330 flagsp[1] |= mod[s+4];
337 static void t1_enc_sigpass_step(
350 opj_mqc_t *mqc = t1->mqc; /* MQC component */
352 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
353 if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
354 v = int_abs(*datap) & one ? 1 : 0;
355 mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); /* ESSAI */
356 if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
357 mqc_bypass_enc(mqc, v);
362 v = *datap < 0 ? 1 : 0;
363 *nmsedec += t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
364 mqc_setcurctx(mqc, t1_getctxno_sc(flag)); /* ESSAI */
365 if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
366 mqc_bypass_enc(mqc, v);
368 mqc_encode(mqc, v ^ t1_getspb(flag));
370 t1_updateflags(flagsp, v, t1->flags_stride);
376 static INLINE void t1_dec_sigpass_step_raw(
385 opj_raw_t *raw = t1->raw; /* RAW component */
387 OPJ_ARG_NOT_USED(orient);
389 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
390 if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
391 if (raw_decode(raw)) {
392 v = raw_decode(raw); /* ESSAI */
393 *datap = v ? -oneplushalf : oneplushalf;
394 t1_updateflags(flagsp, v, t1->flags_stride);
398 } /* VSC and BYPASS by Antonin */
400 static INLINE void t1_dec_sigpass_step_mqc(
409 opj_mqc_t *mqc = t1->mqc; /* MQC component */
412 if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
413 mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
414 if (mqc_decode(mqc)) {
415 mqc_setcurctx(mqc, t1_getctxno_sc(flag));
416 v = mqc_decode(mqc) ^ t1_getspb(flag);
417 *datap = v ? -oneplushalf : oneplushalf;
418 t1_updateflags(flagsp, v, t1->flags_stride);
422 } /* VSC and BYPASS by Antonin */
424 static INLINE void t1_dec_sigpass_step_mqc_vsc(
434 opj_mqc_t *mqc = t1->mqc; /* MQC component */
436 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
437 if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
438 mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
439 if (mqc_decode(mqc)) {
440 mqc_setcurctx(mqc, t1_getctxno_sc(flag));
441 v = mqc_decode(mqc) ^ t1_getspb(flag);
442 *datap = v ? -oneplushalf : oneplushalf;
443 t1_updateflags(flagsp, v, t1->flags_stride);
447 } /* VSC and BYPASS by Antonin */
449 static void t1_enc_sigpass(
457 int i, j, k, one, vsc;
459 one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
460 for (k = 0; k < t1->h; k += 4) {
461 for (i = 0; i < t1->w; ++i) {
462 for (j = k; j < k + 4 && j < t1->h; ++j) {
463 vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
466 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
467 &t1->data[(j * t1->w) + i],
479 static void t1_dec_sigpass_raw(
485 int i, j, k, one, half, oneplushalf, vsc;
488 oneplushalf = one | half;
489 for (k = 0; k < t1->h; k += 4) {
490 for (i = 0; i < t1->w; ++i) {
491 for (j = k; j < k + 4 && j < t1->h; ++j) {
492 vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
493 t1_dec_sigpass_step_raw(
495 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
496 &t1->data[(j * t1->w) + i],
503 } /* VSC and BYPASS by Antonin */
505 static void t1_dec_sigpass_mqc(
510 int i, j, k, one, half, oneplushalf;
511 int *data1 = t1->data;
512 flag_t *flags1 = &t1->flags[1];
515 oneplushalf = one | half;
516 for (k = 0; k < (t1->h & ~3); k += 4) {
517 for (i = 0; i < t1->w; ++i) {
518 int *data2 = data1 + i;
519 flag_t *flags2 = flags1 + i;
520 flags2 += t1->flags_stride;
521 t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
523 flags2 += t1->flags_stride;
524 t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
526 flags2 += t1->flags_stride;
527 t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
529 flags2 += t1->flags_stride;
530 t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
534 flags1 += t1->flags_stride << 2;
536 for (i = 0; i < t1->w; ++i) {
537 int *data2 = data1 + i;
538 flag_t *flags2 = flags1 + i;
539 for (j = k; j < t1->h; ++j) {
540 flags2 += t1->flags_stride;
541 t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
545 } /* VSC and BYPASS by Antonin */
547 static void t1_dec_sigpass_mqc_vsc(
552 int i, j, k, one, half, oneplushalf, vsc;
555 oneplushalf = one | half;
556 for (k = 0; k < t1->h; k += 4) {
557 for (i = 0; i < t1->w; ++i) {
558 for (j = k; j < k + 4 && j < t1->h; ++j) {
559 vsc = (j == k + 3 || j == t1->h - 1) ? 1 : 0;
560 t1_dec_sigpass_step_mqc_vsc(
562 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
563 &t1->data[(j * t1->w) + i],
570 } /* VSC and BYPASS by Antonin */
572 static void t1_enc_refpass_step(
584 opj_mqc_t *mqc = t1->mqc; /* MQC component */
586 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
587 if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
588 *nmsedec += t1_getnmsedec_ref(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
589 v = int_abs(*datap) & one ? 1 : 0;
590 mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */
591 if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
592 mqc_bypass_enc(mqc, v);
596 *flagsp |= T1_REFINE;
600 static INLINE void t1_dec_refpass_step_raw(
610 opj_raw_t *raw = t1->raw; /* RAW component */
612 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
613 if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
615 t = v ? poshalf : neghalf;
616 *datap += *datap < 0 ? -t : t;
617 *flagsp |= T1_REFINE;
619 } /* VSC and BYPASS by Antonin */
621 static INLINE void t1_dec_refpass_step_mqc(
630 opj_mqc_t *mqc = t1->mqc; /* MQC component */
633 if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
634 mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */
636 t = v ? poshalf : neghalf;
637 *datap += *datap < 0 ? -t : t;
638 *flagsp |= T1_REFINE;
640 } /* VSC and BYPASS by Antonin */
642 static INLINE void t1_dec_refpass_step_mqc_vsc(
652 opj_mqc_t *mqc = t1->mqc; /* MQC component */
654 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
655 if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
656 mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */
658 t = v ? poshalf : neghalf;
659 *datap += *datap < 0 ? -t : t;
660 *flagsp |= T1_REFINE;
662 } /* VSC and BYPASS by Antonin */
664 static void t1_enc_refpass(
671 int i, j, k, one, vsc;
673 one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
674 for (k = 0; k < t1->h; k += 4) {
675 for (i = 0; i < t1->w; ++i) {
676 for (j = k; j < k + 4 && j < t1->h; ++j) {
677 vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
680 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
681 &t1->data[(j * t1->w) + i],
692 static void t1_dec_refpass_raw(
697 int i, j, k, one, poshalf, neghalf;
701 neghalf = bpno > 0 ? -poshalf : -1;
702 for (k = 0; k < t1->h; k += 4) {
703 for (i = 0; i < t1->w; ++i) {
704 for (j = k; j < k + 4 && j < t1->h; ++j) {
705 vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
706 t1_dec_refpass_step_raw(
708 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
709 &t1->data[(j * t1->w) + i],
716 } /* VSC and BYPASS by Antonin */
718 static void t1_dec_refpass_mqc(
722 int i, j, k, one, poshalf, neghalf;
723 int *data1 = t1->data;
724 flag_t *flags1 = &t1->flags[1];
727 neghalf = bpno > 0 ? -poshalf : -1;
728 for (k = 0; k < (t1->h & ~3); k += 4) {
729 for (i = 0; i < t1->w; ++i) {
730 int *data2 = data1 + i;
731 flag_t *flags2 = flags1 + i;
732 flags2 += t1->flags_stride;
733 t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
735 flags2 += t1->flags_stride;
736 t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
738 flags2 += t1->flags_stride;
739 t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
741 flags2 += t1->flags_stride;
742 t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
746 flags1 += t1->flags_stride << 2;
748 for (i = 0; i < t1->w; ++i) {
749 int *data2 = data1 + i;
750 flag_t *flags2 = flags1 + i;
751 for (j = k; j < t1->h; ++j) {
752 flags2 += t1->flags_stride;
753 t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
757 } /* VSC and BYPASS by Antonin */
759 static void t1_dec_refpass_mqc_vsc(
763 int i, j, k, one, poshalf, neghalf;
767 neghalf = bpno > 0 ? -poshalf : -1;
768 for (k = 0; k < t1->h; k += 4) {
769 for (i = 0; i < t1->w; ++i) {
770 for (j = k; j < k + 4 && j < t1->h; ++j) {
771 vsc = ((j == k + 3 || j == t1->h - 1)) ? 1 : 0;
772 t1_dec_refpass_step_mqc_vsc(
774 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
775 &t1->data[(j * t1->w) + i],
782 } /* VSC and BYPASS by Antonin */
784 static void t1_enc_clnpass_step(
797 opj_mqc_t *mqc = t1->mqc; /* MQC component */
799 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
803 if (!(*flagsp & (T1_SIG | T1_VISIT))) {
804 mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
805 v = int_abs(*datap) & one ? 1 : 0;
809 *nmsedec += t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
810 mqc_setcurctx(mqc, t1_getctxno_sc(flag));
811 v = *datap < 0 ? 1 : 0;
812 mqc_encode(mqc, v ^ t1_getspb(flag));
813 t1_updateflags(flagsp, v, t1->flags_stride);
816 *flagsp &= ~T1_VISIT;
819 static void t1_dec_clnpass_step_partial(
827 opj_mqc_t *mqc = t1->mqc; /* MQC component */
829 OPJ_ARG_NOT_USED(orient);
832 mqc_setcurctx(mqc, t1_getctxno_sc(flag));
833 v = mqc_decode(mqc) ^ t1_getspb(flag);
834 *datap = v ? -oneplushalf : oneplushalf;
835 t1_updateflags(flagsp, v, t1->flags_stride);
836 *flagsp &= ~T1_VISIT;
837 } /* VSC and BYPASS by Antonin */
839 static void t1_dec_clnpass_step(
848 opj_mqc_t *mqc = t1->mqc; /* MQC component */
851 if (!(flag & (T1_SIG | T1_VISIT))) {
852 mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
853 if (mqc_decode(mqc)) {
854 mqc_setcurctx(mqc, t1_getctxno_sc(flag));
855 v = mqc_decode(mqc) ^ t1_getspb(flag);
856 *datap = v ? -oneplushalf : oneplushalf;
857 t1_updateflags(flagsp, v, t1->flags_stride);
860 *flagsp &= ~T1_VISIT;
861 } /* VSC and BYPASS by Antonin */
863 static void t1_dec_clnpass_step_vsc(
874 opj_mqc_t *mqc = t1->mqc; /* MQC component */
876 flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
880 if (!(flag & (T1_SIG | T1_VISIT))) {
881 mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
882 if (mqc_decode(mqc)) {
884 mqc_setcurctx(mqc, t1_getctxno_sc(flag));
885 v = mqc_decode(mqc) ^ t1_getspb(flag);
886 *datap = v ? -oneplushalf : oneplushalf;
887 t1_updateflags(flagsp, v, t1->flags_stride);
890 *flagsp &= ~T1_VISIT;
893 static void t1_enc_clnpass(
900 int i, j, k, one, agg, runlen, vsc;
902 opj_mqc_t *mqc = t1->mqc; /* MQC component */
905 one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
906 for (k = 0; k < t1->h; k += 4) {
907 for (i = 0; i < t1->w; ++i) {
909 if (cblksty & J2K_CCP_CBLKSTY_VSC) {
910 agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
911 || MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
912 || MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
913 || (MACRO_t1_flags(1 + k + 3,1 + i)
914 & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
916 agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
917 || MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
918 || MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
919 || MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
925 for (runlen = 0; runlen < 4; ++runlen) {
926 if (int_abs(t1->data[((k + runlen)*t1->w) + i]) & one)
929 mqc_setcurctx(mqc, T1_CTXNO_AGG);
930 mqc_encode(mqc, runlen != 4);
934 mqc_setcurctx(mqc, T1_CTXNO_UNI);
935 mqc_encode(mqc, runlen >> 1);
936 mqc_encode(mqc, runlen & 1);
940 for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
941 vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
944 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
945 &t1->data[(j * t1->w) + i],
950 agg && (j == k + runlen),
957 static void t1_dec_clnpass(
963 int i, j, k, one, half, oneplushalf, agg, runlen, vsc;
964 int segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM;
966 opj_mqc_t *mqc = t1->mqc; /* MQC component */
970 oneplushalf = one | half;
971 if (cblksty & J2K_CCP_CBLKSTY_VSC) {
972 for (k = 0; k < t1->h; k += 4) {
973 for (i = 0; i < t1->w; ++i) {
975 agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
976 || MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
977 || MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
978 || (MACRO_t1_flags(1 + k + 3,1 + i)
979 & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
984 mqc_setcurctx(mqc, T1_CTXNO_AGG);
985 if (!mqc_decode(mqc)) {
988 mqc_setcurctx(mqc, T1_CTXNO_UNI);
989 runlen = mqc_decode(mqc);
990 runlen = (runlen << 1) | mqc_decode(mqc);
994 for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
995 vsc = (j == k + 3 || j == t1->h - 1) ? 1 : 0;
996 t1_dec_clnpass_step_vsc(
998 &t1->flags[((j+1) * t1->flags_stride) + i + 1],
999 &t1->data[(j * t1->w) + i],
1002 agg && (j == k + runlen),
1008 int *data1 = t1->data;
1009 flag_t *flags1 = &t1->flags[1];
1010 for (k = 0; k < (t1->h & ~3); k += 4) {
1011 for (i = 0; i < t1->w; ++i) {
1012 int *data2 = data1 + i;
1013 flag_t *flags2 = flags1 + i;
1014 agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
1015 || MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
1016 || MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
1017 || MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
1019 mqc_setcurctx(mqc, T1_CTXNO_AGG);
1020 if (!mqc_decode(mqc)) {
1023 mqc_setcurctx(mqc, T1_CTXNO_UNI);
1024 runlen = mqc_decode(mqc);
1025 runlen = (runlen << 1) | mqc_decode(mqc);
1026 flags2 += runlen * t1->flags_stride;
1027 data2 += runlen * t1->w;
1028 for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
1029 flags2 += t1->flags_stride;
1030 if (agg && (j == k + runlen)) {
1031 t1_dec_clnpass_step_partial(t1, flags2, data2, orient, oneplushalf);
1033 t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
1038 flags2 += t1->flags_stride;
1039 t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
1041 flags2 += t1->flags_stride;
1042 t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
1044 flags2 += t1->flags_stride;
1045 t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
1047 flags2 += t1->flags_stride;
1048 t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
1052 data1 += t1->w << 2;
1053 flags1 += t1->flags_stride << 2;
1055 for (i = 0; i < t1->w; ++i) {
1056 int *data2 = data1 + i;
1057 flag_t *flags2 = flags1 + i;
1058 for (j = k; j < t1->h; ++j) {
1059 flags2 += t1->flags_stride;
1060 t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
1068 mqc_setcurctx(mqc, T1_CTXNO_UNI);
1069 v = mqc_decode(mqc);
1070 v = (v << 1) | mqc_decode(mqc);
1071 v = (v << 1) | mqc_decode(mqc);
1072 v = (v << 1) | mqc_decode(mqc);
1075 opj_event_msg(t1->cinfo, EVT_WARNING, "Bad segmentation symbol %x\n", v);
1079 } /* VSC and BYPASS by Antonin */
1082 /** mod fixed_quality */
1083 static double t1_getwmsedec(
1094 double w1, w2, wmsedec;
1096 w1 = (mct && numcomps==3) ? mct_getnorm(compno) : 1.0;
1097 w2 = dwt_getnorm(level, orient);
1098 } else { /* if (qmfbid == 0) */
1099 w1 = (mct && numcomps==3) ? mct_getnorm_real(compno) : 1.0;
1100 w2 = dwt_getnorm_real(level, orient);
1102 wmsedec = w1 * w2 * stepsize * (1 << bpno);
1103 wmsedec *= wmsedec * nmsedec / 8192.0;
1108 static opj_bool allocate_buffers(
1116 if(datasize > t1->datasize){
1117 opj_aligned_free(t1->data);
1118 t1->data = (int*) opj_aligned_malloc(datasize * sizeof(int));
1122 t1->datasize=datasize;
1124 memset(t1->data,0,datasize * sizeof(int));
1126 t1->flags_stride=w+2;
1127 flagssize=t1->flags_stride * (h+2);
1129 if(flagssize > t1->flagssize){
1130 opj_aligned_free(t1->flags);
1131 t1->flags = (flag_t*) opj_aligned_malloc(flagssize * sizeof(flag_t));
1135 t1->flagssize=flagssize;
1137 memset(t1->flags,0,flagssize * sizeof(flag_t));
1145 /** mod fixed_quality */
1146 static void t1_encode_cblk(
1148 opj_tcd_cblk_enc_t* cblk,
1157 opj_tcd_tile_t * tile)
1159 double cumwmsedec = 0.0;
1161 opj_mqc_t *mqc = t1->mqc; /* MQC component */
1163 int passno, bpno, passtype;
1166 char type = T1_TYPE_MQ;
1170 for (i = 0; i < t1->w * t1->h; ++i) {
1171 int tmp = abs(t1->data[i]);
1172 max = int_max(max, tmp);
1175 cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0;
1177 bpno = cblk->numbps - 1;
1180 mqc_resetstates(mqc);
1181 mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
1182 mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
1183 mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
1184 mqc_init_enc(mqc, cblk->data);
1186 for (passno = 0; bpno >= 0; ++passno) {
1187 opj_tcd_pass_t *pass = &cblk->passes[passno];
1189 type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
1193 t1_enc_sigpass(t1, bpno, orient, &nmsedec, type, cblksty);
1196 t1_enc_refpass(t1, bpno, &nmsedec, type, cblksty);
1199 t1_enc_clnpass(t1, bpno, orient, &nmsedec, cblksty);
1200 /* code switch SEGMARK (i.e. SEGSYM) */
1201 if (cblksty & J2K_CCP_CBLKSTY_SEGSYM)
1202 mqc_segmark_enc(mqc);
1207 tempwmsedec = t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps, mct);
1208 cumwmsedec += tempwmsedec;
1209 tile->distotile += tempwmsedec;
1211 /* Code switch "RESTART" (i.e. TERMALL) */
1212 if ((cblksty & J2K_CCP_CBLKSTY_TERMALL) && !((passtype == 2) && (bpno - 1 < 0))) {
1213 if (type == T1_TYPE_RAW) {
1216 /* correction = mqc_bypass_flush_enc(); */
1217 } else { /* correction = mqc_restart_enc(); */
1223 if (((bpno < (cblk->numbps - 4) && (passtype > 0))
1224 || ((bpno == (cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) {
1225 if (type == T1_TYPE_RAW) {
1228 /* correction = mqc_bypass_flush_enc(); */
1229 } else { /* correction = mqc_restart_enc(); */
1239 if (++passtype == 3) {
1244 if (pass->term && bpno > 0) {
1245 type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
1246 if (type == T1_TYPE_RAW)
1247 mqc_bypass_init_enc(mqc);
1249 mqc_restart_init_enc(mqc);
1252 pass->distortiondec = cumwmsedec;
1253 pass->rate = mqc_numbytes(mqc) + correction; /* FIXME */
1255 /* Code-switch "RESET" */
1256 if (cblksty & J2K_CCP_CBLKSTY_RESET)
1260 /* Code switch "ERTERM" (i.e. PTERM) */
1261 if (cblksty & J2K_CCP_CBLKSTY_PTERM)
1262 mqc_erterm_enc(mqc);
1263 else /* Default coding */ if (!(cblksty & J2K_CCP_CBLKSTY_LAZY))
1266 cblk->totalpasses = passno;
1268 for (passno = 0; passno<cblk->totalpasses; passno++) {
1269 opj_tcd_pass_t *pass = &cblk->passes[passno];
1270 if (pass->rate > mqc_numbytes(mqc))
1271 pass->rate = mqc_numbytes(mqc);
1272 /*Preventing generation of FF as last data byte of a pass*/
1273 if((pass->rate>1) && (cblk->data[pass->rate - 1] == 0xFF)){
1276 pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate);
1280 static void t1_decode_cblk(
1282 opj_tcd_cblk_dec_t* cblk,
1287 opj_raw_t *raw = t1->raw; /* RAW component */
1288 opj_mqc_t *mqc = t1->mqc; /* MQC component */
1292 char type = T1_TYPE_MQ; /* BYPASS mode */
1294 if(!allocate_buffers(
1296 cblk->x1 - cblk->x0,
1297 cblk->y1 - cblk->y0))
1302 bpno = roishift + cblk->numbps - 1;
1305 mqc_resetstates(mqc);
1306 mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
1307 mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
1308 mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
1310 for (segno = 0; segno < cblk->numsegs; ++segno) {
1311 opj_tcd_seg_t *seg = &cblk->segs[segno];
1314 type = ((bpno <= (cblk->numbps - 1) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
1315 /* FIXME: slviewer gets here with a null pointer. Why? Partially downloaded and/or corrupt textures? */
1316 if(seg->data == NULL){
1319 if (type == T1_TYPE_RAW) {
1320 raw_init_dec(raw, (*seg->data) + seg->dataindex, seg->len);
1322 mqc_init_dec(mqc, (*seg->data) + seg->dataindex, seg->len);
1325 for (passno = 0; passno < seg->numpasses; ++passno) {
1328 if (type == T1_TYPE_RAW) {
1329 t1_dec_sigpass_raw(t1, bpno+1, orient, cblksty);
1331 if (cblksty & J2K_CCP_CBLKSTY_VSC) {
1332 t1_dec_sigpass_mqc_vsc(t1, bpno+1, orient);
1334 t1_dec_sigpass_mqc(t1, bpno+1, orient);
1339 if (type == T1_TYPE_RAW) {
1340 t1_dec_refpass_raw(t1, bpno+1, cblksty);
1342 if (cblksty & J2K_CCP_CBLKSTY_VSC) {
1343 t1_dec_refpass_mqc_vsc(t1, bpno+1);
1345 t1_dec_refpass_mqc(t1, bpno+1);
1350 t1_dec_clnpass(t1, bpno+1, orient, cblksty);
1354 if ((cblksty & J2K_CCP_CBLKSTY_RESET) && type == T1_TYPE_MQ) {
1355 mqc_resetstates(mqc);
1356 mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
1357 mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
1358 mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
1360 if (++passtype == 3) {
1368 /* ----------------------------------------------------------------------- */
1370 opj_t1_t* t1_create(opj_common_ptr cinfo) {
1371 opj_t1_t *t1 = (opj_t1_t*) opj_malloc(sizeof(opj_t1_t));
1376 /* create MQC and RAW handles */
1377 t1->mqc = mqc_create();
1378 t1->raw = raw_create();
1388 void t1_destroy(opj_t1_t *t1) {
1390 /* destroy MQC and RAW handles */
1391 mqc_destroy(t1->mqc);
1392 raw_destroy(t1->raw);
1393 opj_aligned_free(t1->data);
1394 opj_aligned_free(t1->flags);
1399 void t1_encode_cblks(
1401 opj_tcd_tile_t *tile,
1404 int compno, resno, bandno, precno, cblkno;
1406 tile->distotile = 0; /* fixed_quality */
1408 for (compno = 0; compno < tile->numcomps; ++compno) {
1409 opj_tcd_tilecomp_t* tilec = &tile->comps[compno];
1410 opj_tccp_t* tccp = &tcp->tccps[compno];
1411 int tile_w = tilec->x1 - tilec->x0;
1413 for (resno = 0; resno < tilec->numresolutions; ++resno) {
1414 opj_tcd_resolution_t *res = &tilec->resolutions[resno];
1416 for (bandno = 0; bandno < res->numbands; ++bandno) {
1417 opj_tcd_band_t* restrict band = &res->bands[bandno];
1418 int bandconst = 8192 * 8192 / ((int) floor(band->stepsize * 8192));
1420 for (precno = 0; precno < res->pw * res->ph; ++precno) {
1421 opj_tcd_precinct_t *prc = &band->precincts[precno];
1423 for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) {
1424 opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
1425 int* restrict datap;
1426 int* restrict tiledp;
1431 int x = cblk->x0 - band->x0;
1432 int y = cblk->y0 - band->y0;
1433 if (band->bandno & 1) {
1434 opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
1435 x += pres->x1 - pres->x0;
1437 if (band->bandno & 2) {
1438 opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
1439 y += pres->y1 - pres->y0;
1442 if(!allocate_buffers(
1444 cblk->x1 - cblk->x0,
1445 cblk->y1 - cblk->y0))
1454 tiledp=&tilec->data[(y * tile_w) + x];
1455 if (tccp->qmfbid == 1) {
1456 for (j = 0; j < cblk_h; ++j) {
1457 for (i = 0; i < cblk_w; ++i) {
1458 int tmp = tiledp[(j * tile_w) + i];
1459 datap[(j * cblk_w) + i] = tmp << T1_NMSEDEC_FRACBITS;
1462 } else { /* if (tccp->qmfbid == 0) */
1463 for (j = 0; j < cblk_h; ++j) {
1464 for (i = 0; i < cblk_w; ++i) {
1465 int tmp = tiledp[(j * tile_w) + i];
1466 datap[(j * cblk_w) + i] =
1469 bandconst) >> (11 - T1_NMSEDEC_FRACBITS);
1479 tilec->numresolutions - 1 - resno,
1494 void t1_decode_cblks(
1496 opj_tcd_tilecomp_t* tilec,
1499 int resno, bandno, precno, cblkno;
1501 int tile_w = tilec->x1 - tilec->x0;
1503 for (resno = 0; resno < tilec->numresolutions; ++resno) {
1504 opj_tcd_resolution_t* res = &tilec->resolutions[resno];
1506 for (bandno = 0; bandno < res->numbands; ++bandno) {
1507 opj_tcd_band_t* restrict band = &res->bands[bandno];
1509 for (precno = 0; precno < res->pw * res->ph; ++precno) {
1510 opj_tcd_precinct_t* precinct = &band->precincts[precno];
1512 for (cblkno = 0; cblkno < precinct->cw * precinct->ch; ++cblkno) {
1513 opj_tcd_cblk_dec_t* cblk = &precinct->cblks.dec[cblkno];
1514 int* restrict datap;
1526 x = cblk->x0 - band->x0;
1527 y = cblk->y0 - band->y0;
1528 if (band->bandno & 1) {
1529 opj_tcd_resolution_t* pres = &tilec->resolutions[resno - 1];
1530 x += pres->x1 - pres->x0;
1532 if (band->bandno & 2) {
1533 opj_tcd_resolution_t* pres = &tilec->resolutions[resno - 1];
1534 y += pres->y1 - pres->y0;
1541 if (tccp->roishift) {
1542 int thresh = 1 << tccp->roishift;
1543 for (j = 0; j < cblk_h; ++j) {
1544 for (i = 0; i < cblk_w; ++i) {
1545 int val = datap[(j * cblk_w) + i];
1547 if (mag >= thresh) {
1548 mag >>= tccp->roishift;
1549 datap[(j * cblk_w) + i] = val < 0 ? -mag : mag;
1555 if (tccp->qmfbid == 1) {
1556 int* restrict tiledp = &tilec->data[(y * tile_w) + x];
1557 for (j = 0; j < cblk_h; ++j) {
1558 for (i = 0; i < cblk_w; ++i) {
1559 int tmp = datap[(j * cblk_w) + i];
1560 ((int*)tiledp)[(j * tile_w) + i] = tmp / 2;
1563 } else { /* if (tccp->qmfbid == 0) */
1564 float* restrict tiledp = (float*) &tilec->data[(y * tile_w) + x];
1565 for (j = 0; j < cblk_h; ++j) {
1566 float* restrict tiledp2 = tiledp;
1567 for (i = 0; i < cblk_w; ++i) {
1568 float tmp = *datap * band->stepsize;
1576 opj_free(cblk->data);
1577 opj_free(cblk->segs);
1579 opj_free(precinct->cblks.dec);