walkero
/
openjpeg
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

T1: fix VSC mode in encoder

This commit is contained in:
Even Rouault 2017-05-22 18:42:46 +02:00
parent cd12414c6b
commit 4068363ff5
2 changed files with 329 additions and 171 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

489
src/lib/openjp2/t1.c
View File

@ -13,6 +13,7 @@
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
* Copyright (c) 2012, Carl Hetherington
* Copyright (c) 2017, IntoPIX SA <support@intopix.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -62,22 +63,11 @@ static OPJ_BYTE opj_t1_enc_getspb(OPJ_UINT32 fX, OPJ_UINT32 pfX, OPJ_UINT32 nfX,
static OPJ_BYTE opj_t1_getspb(OPJ_UINT32 f);
static OPJ_INT16 opj_t1_getnmsedec_sig(OPJ_UINT32 x, OPJ_UINT32 bitpos);
static OPJ_INT16 opj_t1_getnmsedec_ref(OPJ_UINT32 x, OPJ_UINT32 bitpos);
static void opj_t1_enc_updateflags(opj_flag_enc_t *flagsp, OPJ_UINT32 ci,
OPJ_UINT32 s, OPJ_UINT32 stride);
static INLINE void opj_t1_enc_updateflags(opj_flag_enc_t *flagsp, OPJ_UINT32 ci,
OPJ_UINT32 s, OPJ_UINT32 stride);
static INLINE void opj_t1_updateflags(opj_flag_t *flagsp, OPJ_UINT32 s,
OPJ_UINT32 stride);
/**
Encode significant pass
*/
static void opj_t1_enc_sigpass_step(opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_UINT32 orient,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_BYTE type,
OPJ_UINT32 k);
/**
Decode significant pass
@ -132,18 +122,6 @@ static void opj_t1_dec_sigpass_mqc_vsc(
/**
Encode refinement pass
*/
static void opj_t1_enc_refpass_step(opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_BYTE type);
/**
Encode refinement pass
*/
@ -194,22 +172,6 @@ static INLINE void opj_t1_dec_refpass_step_mqc_vsc(
OPJ_UINT32 row);
/**
Encode clean-up pass
*/
static void opj_t1_enc_clnpass_step(
opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_UINT32 orient,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_UINT32 agg,
OPJ_UINT32 runlen,
OPJ_UINT32 x,
OPJ_UINT32 y);
/**
Decode clean-up pass
*/
@ -407,8 +369,8 @@ static OPJ_INT16 opj_t1_getnmsedec_ref(OPJ_UINT32 x, OPJ_UINT32 bitpos)
}
static void opj_t1_enc_updateflags(opj_flag_enc_t *flagsp, OPJ_UINT32 ci,
OPJ_UINT32 s, OPJ_UINT32 stride)
static INLINE void opj_t1_enc_updateflags(opj_flag_enc_t *flagsp, OPJ_UINT32 ci,
OPJ_UINT32 s, OPJ_UINT32 stride)
{
/* set up to point to the north and south data points' flags words, if required */
opj_flag_enc_t* north;
@ -530,61 +492,66 @@ static INLINE void opj_t1_updateflagscolflags(opj_flag_t *flagsp,
}
}
void opj_t1_enc_sigpass_step(opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_UINT32 orient,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_BYTE type,
OPJ_UINT32 k
)
/**
Encode significant pass
*/
static INLINE void opj_t1_enc_sigpass_step(opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_UINT32 orient,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_BYTE type,
OPJ_UINT32 ci,
OPJ_UINT32 vsc
)
{
OPJ_INT32 v;
OPJ_UINT32 ci;
opj_mqc_t *mqc = t1->mqc; /* MQC component */
if (*flagsp == 0U) {
/* Nothing to do for any of the 4 data points */
return;
}
OPJ_UINT32 vsc_mask = vsc ? ~((T1_SIGMA_SW | T1_SIGMA_S | T1_SIGMA_SE |
T1_CHI_S) << (ci * 3U)) : ~0U;
OPJ_UINT32 const flags = *flagsp & vsc_mask;
for (ci = 0U; ci < 4U; ++ci) {
/* XXX:TODO enc_flags_t and vsc mode a la
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
flag = vsc ? ((*dec_flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*dec_flagsp);
*/
OPJ_UINT32 const shift_flags = *flagsp >> (ci * 3U);
if ((shift_flags & (T1_SIGMA_THIS | T1_PI_THIS)) == 0U &&
(shift_flags & T1_SIGMA_NEIGHBOURS) != 0U) {
v = opj_int_abs(*datap) & one ? 1 : 0;
opj_mqc_setcurctx(mqc, opj_t1_enc_getctxno_zc(shift_flags,
orient)); /* ESSAI */
if ((flags & ((T1_SIGMA_THIS | T1_PI_THIS) << (ci * 3U))) == 0U &&
(flags & (T1_SIGMA_NEIGHBOURS << (ci * 3U))) != 0U) {
OPJ_UINT32 ctxt1 = opj_t1_enc_getctxno_zc(flags >> (ci * 3U),
orient);
v = opj_int_abs(*datap) & one ? 1 : 0;
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " ctxt1=%d\n", ctxt1);
#endif
opj_mqc_setcurctx(mqc, ctxt1); /* ESSAI */
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
opj_mqc_bypass_enc(mqc, v);
} else {
opj_mqc_encode(mqc, v);
}
if (v) {
OPJ_UINT32 ctxt2 = opj_t1_enc_getctxno_sc(*flagsp & vsc_mask,
flagsp[-1] & vsc_mask, flagsp[1] & vsc_mask,
ci);
v = *datap < 0 ? 1 : 0;
*nmsedec += opj_t1_getnmsedec_sig(opj_int_abs(*datap), bpno);
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " ctxt2=%d\n", ctxt2);
#endif
opj_mqc_setcurctx(mqc, ctxt2); /* ESSAI */
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
opj_mqc_bypass_enc(mqc, v);
} else {
opj_mqc_encode(mqc, v);
OPJ_UINT32 spb = opj_t1_enc_getspb(*flagsp & vsc_mask,
flagsp[-1] & vsc_mask, flagsp[1] & vsc_mask, ci);
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " spb=%d\n", spb);
#endif
opj_mqc_encode(mqc, v ^ spb);
}
if (v) {
v = *datap < 0 ? 1 : 0;
*nmsedec += opj_t1_getnmsedec_sig(opj_int_abs(*datap), bpno);
opj_mqc_setcurctx(mqc, opj_t1_enc_getctxno_sc(*flagsp, flagsp[-1], flagsp[1],
ci)); /* ESSAI */
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
opj_mqc_bypass_enc(mqc, v);
} else {
opj_mqc_encode(mqc, v ^ opj_t1_enc_getspb(*flagsp, flagsp[-1], flagsp[1], ci));
}
opj_t1_enc_updateflags(flagsp, ci, v, t1->flags_stride);
}
*flagsp |= T1_PI_0 << (ci * 3U);
opj_t1_enc_updateflags(flagsp, ci, v, t1->flags_stride);
}
datap += t1->data_stride;
*flagsp |= T1_PI_THIS << (ci * 3U);
}
}
@ -701,26 +668,99 @@ static void opj_t1_enc_sigpass(opj_t1_t *t1,
OPJ_INT32 const one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
opj_flag_enc_t* f = &ENC_FLAGS(0, 0);
OPJ_UINT32 const extra = t1->flags_stride - t1->w;
OPJ_INT32* d = t1->data;
*nmsedec = 0;
for (k = 0; k < t1->h; k += 4) {
#ifdef DEBUG_ENC_SIG
fprintf(stderr, "enc_sigpass: bpno=%d\n", bpno);
#endif
for (k = 0; k < (t1->h & ~3U); k += 4) {
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " k=%d\n", k);
#endif
for (i = 0; i < t1->w; ++i) {
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " i=%d\n", i);
#endif
if (*f == 0U) {
/* Nothing to do for any of the 4 data points */
f++;
continue;
}
opj_t1_enc_sigpass_step(
t1,
f,
&t1->data[(k * t1->data_stride) + i],
&t1->data[((k + 0) * t1->data_stride) + i],
orient,
bpno,
one,
nmsedec,
type, k);
type,
0, 0);
opj_t1_enc_sigpass_step(
t1,
f,
&t1->data[((k + 1) * t1->data_stride) + i],
orient,
bpno,
one,
nmsedec,
type,
1, 0);
opj_t1_enc_sigpass_step(
t1,
f,
&t1->data[((k + 2) * t1->data_stride) + i],
orient,
bpno,
one,
nmsedec,
type,
2, 0);
opj_t1_enc_sigpass_step(
t1,
f,
&t1->data[((k + 3) * t1->data_stride) + i],
orient,
bpno,
one,
nmsedec,
type,
3, cblksty & J2K_CCP_CBLKSTY_VSC);
++f;
++d;
}
f += extra;
}
if (k < t1->h) {
OPJ_UINT32 j;
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " k=%d\n", k);
#endif
for (i = 0; i < t1->w; ++i) {
#ifdef DEBUG_ENC_SIG
fprintf(stderr, " i=%d\n", i);
#endif
if (*f == 0U) {
/* Nothing to do for any of the 4 data points */
f++;
continue;
}
for (j = k; j < t1->h; ++j) {
opj_t1_enc_sigpass_step(
t1,
f,
&t1->data[(j * t1->data_stride) + i],
orient,
bpno,
one,
nmsedec,
type,
j - k,
(j == t1->h - 1 && (cblksty & J2K_CCP_CBLKSTY_VSC) != 0));
}
++f;
}
}
}
static void opj_t1_dec_sigpass_raw(
@ -868,49 +908,45 @@ static void opj_t1_dec_sigpass_mqc_vsc(
}
} /* VSC and BYPASS by Antonin */
static void opj_t1_enc_refpass_step(opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_BYTE type)
/**
Encode refinement pass step
*/
static INLINE void opj_t1_enc_refpass_step(opj_t1_t *t1,
opj_flag_enc_t *flagsp,
OPJ_INT32 *datap,
OPJ_INT32 bpno,
OPJ_INT32 one,
OPJ_INT32 *nmsedec,
OPJ_BYTE type,
OPJ_UINT32 ci,
OPJ_UINT32 vsc
)
{
OPJ_INT32 v;
OPJ_UINT32 ci;
opj_mqc_t *mqc = t1->mqc; /* MQC component */
if ((*flagsp & (T1_SIGMA_4 | T1_SIGMA_7 | T1_SIGMA_10 | T1_SIGMA_13)) == 0) {
/* none significant */
return;
}
if ((*flagsp & (T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3)) ==
(T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3)) {
/* all processed by sigpass */
return;
}
OPJ_UINT32 const shift_flags =
vsc ?
((*flagsp >> (ci * 3U)) & ~(T1_SIGMA_SW | T1_SIGMA_S | T1_SIGMA_SE | T1_CHI_S))
:
(*flagsp >> (ci * 3U));
for (ci = 0U; ci < 4U; ++ci) {
/* XXX:TODO vsc mode as per
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
flag = vsc ? ((*dec_flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*dec_flagsp);
*/
OPJ_UINT32 shift_flags = *flagsp >> (ci * 3U);
if ((shift_flags & (T1_SIGMA_4 | T1_PI_0)) == T1_SIGMA_4) {
*nmsedec += opj_t1_getnmsedec_ref(opj_int_abs(*datap), bpno);
v = opj_int_abs(*datap) & one ? 1 : 0;
opj_mqc_setcurctx(mqc, opj_t1_enc_getctxno_mag(shift_flags)); /* ESSAI */
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
opj_mqc_bypass_enc(mqc, v);
} else {
opj_mqc_encode(mqc, v);
}
*flagsp |= T1_MU_0 << (ci * 3U);
if ((shift_flags & (T1_SIGMA_THIS | T1_PI_THIS)) == T1_SIGMA_THIS) {
OPJ_UINT32 ctxt = opj_t1_enc_getctxno_mag(shift_flags);
*nmsedec += opj_t1_getnmsedec_ref(opj_int_abs(*datap), bpno);
v = opj_int_abs(*datap) & one ? 1 : 0;
#ifdef DEBUG_ENC_REF
fprintf(stderr, " ctxt=%d\n", ctxt);
#endif
opj_mqc_setcurctx(mqc, ctxt); /* ESSAI */
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
opj_mqc_bypass_enc(mqc, v);
} else {
opj_mqc_encode(mqc, v);
}
datap += t1->data_stride;
*flagsp |= T1_MU_THIS << (ci * 3U);
}
}
@ -1023,20 +1059,99 @@ static void opj_t1_enc_refpass(
const OPJ_UINT32 extra = t1->flags_stride - t1->w;
*nmsedec = 0;
for (k = 0U; k < t1->h; k += 4U) {
for (i = 0U; i < t1->w; ++i) {
#ifdef DEBUG_ENC_REF
fprintf(stderr, "enc_refpass: bpno=%d\n", bpno);
#endif
for (k = 0; k < (t1->h & ~3U); k += 4) {
#ifdef DEBUG_ENC_REF
fprintf(stderr, " k=%d\n", k);
#endif
for (i = 0; i < t1->w; ++i) {
#ifdef DEBUG_ENC_REF
fprintf(stderr, " i=%d\n", i);
#endif
if ((*f & (T1_SIGMA_4 | T1_SIGMA_7 | T1_SIGMA_10 | T1_SIGMA_13)) == 0) {
/* none significant */
f++;
continue;
}
if ((*f & (T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3)) ==
(T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3)) {
/* all processed by sigpass */
f++;
continue;
}
opj_t1_enc_refpass_step(
t1,
f,
&t1->data[(k * t1->data_stride) + i],
&t1->data[((k + 0) * t1->data_stride) + i],
bpno,
one,
nmsedec,
type);
type,
0, 0);
opj_t1_enc_refpass_step(
t1,
f,
&t1->data[((k + 1) * t1->data_stride) + i],
bpno,
one,
nmsedec,
type,
1, 0);
opj_t1_enc_refpass_step(
t1,
f,
&t1->data[((k + 2) * t1->data_stride) + i],
bpno,
one,
nmsedec,
type,
2, 0);
opj_t1_enc_refpass_step(
t1,
f,
&t1->data[((k + 3) * t1->data_stride) + i],
bpno,
one,
nmsedec,
type,
3, cblksty & J2K_CCP_CBLKSTY_VSC);
++f;
}
f += extra;
}
if (k < t1->h) {
OPJ_UINT32 j;
#ifdef DEBUG_ENC_REF
fprintf(stderr, " k=%d\n", k);
#endif
for (i = 0; i < t1->w; ++i) {
#ifdef DEBUG_ENC_REF
fprintf(stderr, " i=%d\n", i);
#endif
if ((*f & (T1_SIGMA_4 | T1_SIGMA_7 | T1_SIGMA_10 | T1_SIGMA_13)) == 0) {
/* none significant */
f++;
continue;
}
for (j = k; j < t1->h; ++j) {
opj_t1_enc_refpass_step(
t1,
f,
&t1->data[(j * t1->data_stride) + i],
bpno,
one,
nmsedec,
type,
j - k,
(j == t1->h - 1 && (cblksty & J2K_CCP_CBLKSTY_VSC) != 0));
}
++f;
}
}
}
@ -1181,6 +1296,9 @@ static void opj_t1_dec_refpass_mqc_vsc(
}
} /* VSC and BYPASS by Antonin */
/**
Encode clean-up pass step
*/
static void opj_t1_enc_clnpass_step(
opj_t1_t *t1,
opj_flag_enc_t *flagsp,
@ -1192,59 +1310,79 @@ static void opj_t1_enc_clnpass_step(
OPJ_UINT32 agg,
OPJ_UINT32 runlen,
OPJ_UINT32 x,
OPJ_UINT32 y)
OPJ_UINT32 y,
OPJ_UINT32 cblksty)
{
OPJ_INT32 v;
OPJ_UINT32 ci;
opj_mqc_t *mqc = t1->mqc; /* MQC component */
OPJ_UINT32 lim;
const OPJ_UINT32 check = (T1_SIGMA_4 | T1_SIGMA_7 | T1_SIGMA_10 | T1_SIGMA_13 |
T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3);
if ((cblksty & J2K_CCP_CBLKSTY_VSC) == 0) {
const OPJ_UINT32 check = (T1_SIGMA_4 | T1_SIGMA_7 | T1_SIGMA_10 | T1_SIGMA_13 |
T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3);
if ((*flagsp & check) == check) {
if (runlen == 0) {
*flagsp &= ~(T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3);
} else if (runlen == 1) {
*flagsp &= ~(T1_PI_1 | T1_PI_2 | T1_PI_3);
} else if (runlen == 2) {
*flagsp &= ~(T1_PI_2 | T1_PI_3);
} else if (runlen == 3) {
*flagsp &= ~(T1_PI_3);
if ((*flagsp & check) == check) {
if (runlen == 0) {
*flagsp &= ~(T1_PI_0 | T1_PI_1 | T1_PI_2 | T1_PI_3);
} else if (runlen == 1) {
*flagsp &= ~(T1_PI_1 | T1_PI_2 | T1_PI_3);
} else if (runlen == 2) {
*flagsp &= ~(T1_PI_2 | T1_PI_3);
} else if (runlen == 3) {
*flagsp &= ~(T1_PI_3);
}
return;
}
return;
}
lim = 4U < (t1->h - y) ? 4U : (t1->h - y);
for (ci = runlen; ci < lim; ++ci) {
opj_flag_enc_t shift_flags;
OPJ_UINT32 vsc;
OPJ_UINT32 vsc_mask;
opj_flag_enc_t flags;
/* XXX:TODO vsc mode a la
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
flag = vsc ? ((*dec_flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*dec_flagsp);
*/
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (ci == lim - 1)) ? 1 : 0;
vsc_mask = vsc ? ~((T1_SIGMA_SW | T1_SIGMA_S | T1_SIGMA_SE | T1_CHI_S) <<
(ci * 3U)) : ~0U;
if ((agg != 0) && (ci == runlen)) {
goto LABEL_PARTIAL;
}
shift_flags = *flagsp >> (ci * 3U);
flags = *flagsp & vsc_mask;
if (!(shift_flags & (T1_SIGMA_4 | T1_PI_0))) {
opj_mqc_setcurctx(mqc, opj_t1_enc_getctxno_zc(shift_flags, orient));
if (!(flags & ((T1_SIGMA_THIS | T1_PI_THIS) << (ci * 3U)))) {
OPJ_UINT32 ctxt1 = opj_t1_enc_getctxno_zc(flags >> (ci * 3U), orient);
#ifdef DEBUG_ENC_CLN
printf(" ctxt1=%d\n", ctxt1);
#endif
opj_mqc_setcurctx(mqc, ctxt1);
v = opj_int_abs(*datap) & one ? 1 : 0;
opj_mqc_encode(mqc, v);
if (v) {
OPJ_UINT32 ctxt2, spb;
LABEL_PARTIAL:
*nmsedec += opj_t1_getnmsedec_sig(opj_int_abs(*datap), bpno);
opj_mqc_setcurctx(mqc, opj_t1_enc_getctxno_sc(*flagsp, flagsp[-1], flagsp[1],
ci));
ctxt2 = opj_t1_enc_getctxno_sc(*flagsp & vsc_mask,
flagsp[-1] & vsc_mask, flagsp[1] & vsc_mask,
ci);
#ifdef DEBUG_ENC_CLN
printf(" ctxt2=%d\n", ctxt2);
#endif
opj_mqc_setcurctx(mqc, ctxt2);
v = *datap < 0 ? 1 : 0;
opj_mqc_encode(mqc, v ^ opj_t1_enc_getspb(*flagsp, flagsp[-1], flagsp[1], ci));
spb = opj_t1_enc_getspb(*flagsp & vsc_mask,
flagsp[-1] & vsc_mask, flagsp[1] & vsc_mask, ci);
#ifdef DEBUG_ENC_CLN
printf(" spb=%d\n", spb);
#endif
opj_mqc_encode(mqc, v ^ spb);
opj_t1_enc_updateflags(flagsp, ci, v, t1->flags_stride);
}
}
*flagsp &= ~(T1_PI_0 << (3U * ci));
*flagsp &= ~(T1_PI_THIS << (3U * ci));
datap += t1->data_stride;
}
}
@ -1383,20 +1521,30 @@ static void opj_t1_enc_clnpass(
opj_mqc_t *mqc = t1->mqc; /* MQC component */
*nmsedec = 0;
#ifdef DEBUG_ENC_CLN
printf("enc_clnpass: bpno=%d\n", bpno);
#endif
for (k = 0; k < t1->h; k += 4) {
#ifdef DEBUG_ENC_CLN
printf(" k=%d\n", k);
#endif
for (i = 0; i < t1->w; ++i) {
if (cblksty & J2K_CCP_CBLKSTY_VSC) {
/* XXX:TODO this needs implementing */
agg = !(MACRO_t1_enc_flags(1 + k, 1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|| MACRO_t1_enc_flags(1 + k + 1, 1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|| MACRO_t1_enc_flags(1 + k + 2, 1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|| (MACRO_t1_enc_flags(1 + k + 3, 1 + i)
& (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT |
T1_SIG_OTH));
#ifdef DEBUG_ENC_CLN
printf(" i=%d\n", i);
#endif
if (k + 3 < t1->h) {
if (cblksty & J2K_CCP_CBLKSTY_VSC) {
agg = !(ENC_FLAGS(i, k) & ~(T1_SIGMA_15 | T1_SIGMA_16 | T1_SIGMA_17 |
T1_CHI_5));
} else {
agg = !ENC_FLAGS(i, k);
}
} else {
agg = !ENC_FLAGS(i, k);
agg = 0;
}
#ifdef DEBUG_ENC_CLN
printf(" agg=%d\n", agg);
#endif
if (agg) {
for (runlen = 0; runlen < 4; ++runlen) {
if (opj_int_abs(t1->data[((k + runlen)*t1->data_stride) + i]) & one) {
@ -1425,7 +1573,8 @@ static void opj_t1_enc_clnpass(
agg,
runlen,
i,
k);
k,
cblksty);
}
}
}

11
src/lib/openjp2/t1.h
View File

@ -12,6 +12,7 @@
* Copyright (c) 2003-2014, Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2012, Carl Hetherington
* Copyright (c) 2017, IntoPIX SA <support@intopix.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -122,6 +123,14 @@ in T1.C are used by some function in TCD.C.
* These #defines declare the layout of a 32-bit flags word.
*
* This is currently done for encoding only.
* The values must NOT be changed, otherwise this is going to break a lot of
* assumptions.
*/
/* SIGMA: significance state (3 cols x 6 rows)
* CHI: state for negative sample value (1 col x 6 rows)
* MU: state for visited in refinement pass (1 col x 4 rows)
* PI: state for visited in significance pass (1 col * 4 rows)
*/
#define T1_SIGMA_0 (1U << 0)
@ -161,7 +170,6 @@ in T1.C are used by some function in TCD.C.
#define T1_PI_3 (1U << 30)
#define T1_CHI_5 (1U << 31)
/** As an example, the bits T1_SIGMA_3, T1_SIGMA_4 and T1_SIGMA_5
* indicate the significance state of the west neighbour of data point zero
* of our four, the point itself, and its east neighbour respectively.
@ -197,6 +205,7 @@ in T1.C are used by some function in TCD.C.
#define T1_CHI_THIS_I T1_CHI_1_I
#define T1_MU_THIS T1_MU_0
#define T1_PI_THIS T1_PI_0
#define T1_CHI_S T1_CHI_2
#define T1_LUT_SGN_W (1U << 0)
#define T1_LUT_SIG_N (1U << 1)