0,0 → 1,1581 |
/* |
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium |
* Copyright (c) 2002-2007, Professor Benoit Macq |
* Copyright (c) 2001-2003, David Janssens |
* Copyright (c) 2002-2003, Yannick Verschueren |
* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe |
* Copyright (c) 2005, Herve Drolon, FreeImage Team |
* Copyright (c) 2007, Callum Lerwick <seg@haxxed.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* 1. Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include "opj_includes.h" |
#include "t1_luts.h" |
|
/** @defgroup T1 T1 - Implementation of the tier-1 coding */ |
/*@{*/ |
|
/** @name Local static functions */ |
/*@{*/ |
|
static INLINE char t1_getctxno_zc(int f, int orient); |
static char t1_getctxno_sc(int f); |
static INLINE int t1_getctxno_mag(int f); |
static char t1_getspb(int f); |
static short t1_getnmsedec_sig(int x, int bitpos); |
static short t1_getnmsedec_ref(int x, int bitpos); |
static void t1_updateflags(flag_t *flagsp, int s, int stride); |
/** |
Encode significant pass |
*/ |
static void t1_enc_sigpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int bpno, |
int one, |
int *nmsedec, |
char type, |
int vsc); |
/** |
Decode significant pass |
*/ |
static INLINE void t1_dec_sigpass_step_raw( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf, |
int vsc); |
static INLINE void t1_dec_sigpass_step_mqc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf); |
static INLINE void t1_dec_sigpass_step_mqc_vsc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf, |
int vsc); |
/** |
Encode significant pass |
*/ |
static void t1_enc_sigpass( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int *nmsedec, |
char type, |
int cblksty); |
/** |
Decode significant pass |
*/ |
static void t1_dec_sigpass_raw( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int cblksty); |
static void t1_dec_sigpass_mqc( |
opj_t1_t *t1, |
int bpno, |
int orient); |
static void t1_dec_sigpass_mqc_vsc( |
opj_t1_t *t1, |
int bpno, |
int orient); |
/** |
Encode refinement pass |
*/ |
static void t1_enc_refpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int bpno, |
int one, |
int *nmsedec, |
char type, |
int vsc); |
/** |
Decode refinement pass |
*/ |
static void INLINE t1_dec_refpass_step_raw( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int poshalf, |
int neghalf, |
int vsc); |
static void INLINE t1_dec_refpass_step_mqc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int poshalf, |
int neghalf); |
static void INLINE t1_dec_refpass_step_mqc_vsc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int poshalf, |
int neghalf, |
int vsc); |
|
/** |
Encode refinement pass |
*/ |
static void t1_enc_refpass( |
opj_t1_t *t1, |
int bpno, |
int *nmsedec, |
char type, |
int cblksty); |
/** |
Decode refinement pass |
*/ |
static void t1_dec_refpass_raw( |
opj_t1_t *t1, |
int bpno, |
int cblksty); |
static void t1_dec_refpass_mqc( |
opj_t1_t *t1, |
int bpno); |
static void t1_dec_refpass_mqc_vsc( |
opj_t1_t *t1, |
int bpno); |
/** |
Encode clean-up pass |
*/ |
static void t1_enc_clnpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int bpno, |
int one, |
int *nmsedec, |
int partial, |
int vsc); |
/** |
Decode clean-up pass |
*/ |
static void t1_dec_clnpass_step_partial( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf); |
static void t1_dec_clnpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf); |
static void t1_dec_clnpass_step_vsc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf, |
int partial, |
int vsc); |
/** |
Encode clean-up pass |
*/ |
static void t1_enc_clnpass( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int *nmsedec, |
int cblksty); |
/** |
Decode clean-up pass |
*/ |
static void t1_dec_clnpass( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int cblksty); |
static double t1_getwmsedec( |
int nmsedec, |
int compno, |
int level, |
int orient, |
int bpno, |
int qmfbid, |
double stepsize, |
int numcomps, |
int mct); |
/** |
Encode 1 code-block |
@param t1 T1 handle |
@param cblk Code-block coding parameters |
@param orient |
@param compno Component number |
@param level |
@param qmfbid |
@param stepsize |
@param cblksty Code-block style |
@param numcomps |
@param mct |
@param tile |
*/ |
static void t1_encode_cblk( |
opj_t1_t *t1, |
opj_tcd_cblk_enc_t* cblk, |
int orient, |
int compno, |
int level, |
int qmfbid, |
double stepsize, |
int cblksty, |
int numcomps, |
int mct, |
opj_tcd_tile_t * tile); |
/** |
Decode 1 code-block |
@param t1 T1 handle |
@param cblk Code-block coding parameters |
@param orient |
@param roishift Region of interest shifting value |
@param cblksty Code-block style |
*/ |
static void t1_decode_cblk( |
opj_t1_t *t1, |
opj_tcd_cblk_dec_t* cblk, |
int orient, |
int roishift, |
int cblksty); |
|
/*@}*/ |
|
/*@}*/ |
|
/* ----------------------------------------------------------------------- */ |
|
static char t1_getctxno_zc(int f, int orient) { |
return lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)]; |
} |
|
static char t1_getctxno_sc(int f) { |
return lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; |
} |
|
static int t1_getctxno_mag(int f) { |
int tmp1 = (f & T1_SIG_OTH) ? T1_CTXNO_MAG + 1 : T1_CTXNO_MAG; |
int tmp2 = (f & T1_REFINE) ? T1_CTXNO_MAG + 2 : tmp1; |
return (tmp2); |
} |
|
static char t1_getspb(int f) { |
return lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; |
} |
|
static short t1_getnmsedec_sig(int x, int bitpos) { |
if (bitpos > T1_NMSEDEC_FRACBITS) { |
return lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; |
} |
|
return lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; |
} |
|
static short t1_getnmsedec_ref(int x, int bitpos) { |
if (bitpos > T1_NMSEDEC_FRACBITS) { |
return lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; |
} |
|
return lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; |
} |
|
static void t1_updateflags(flag_t *flagsp, int s, int stride) { |
flag_t *np = flagsp - stride; |
flag_t *sp = flagsp + stride; |
|
static const flag_t mod[] = { |
T1_SIG_S, T1_SIG_S|T1_SGN_S, |
T1_SIG_E, T1_SIG_E|T1_SGN_E, |
T1_SIG_W, T1_SIG_W|T1_SGN_W, |
T1_SIG_N, T1_SIG_N|T1_SGN_N |
}; |
|
np[-1] |= T1_SIG_SE; |
np[0] |= mod[s]; |
np[1] |= T1_SIG_SW; |
|
flagsp[-1] |= mod[s+2]; |
flagsp[0] |= T1_SIG; |
flagsp[1] |= mod[s+4]; |
|
sp[-1] |= T1_SIG_NE; |
sp[0] |= mod[s+6]; |
sp[1] |= T1_SIG_NW; |
} |
|
static void t1_enc_sigpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int bpno, |
int one, |
int *nmsedec, |
char type, |
int vsc) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { |
v = int_abs(*datap) & one ? 1 : 0; |
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); /* ESSAI */ |
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ |
mqc_bypass_enc(mqc, v); |
} else { |
mqc_encode(mqc, v); |
} |
if (v) { |
v = *datap < 0 ? 1 : 0; |
*nmsedec += t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS); |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); /* ESSAI */ |
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ |
mqc_bypass_enc(mqc, v); |
} else { |
mqc_encode(mqc, v ^ t1_getspb(flag)); |
} |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
*flagsp |= T1_VISIT; |
} |
} |
|
static INLINE void t1_dec_sigpass_step_raw( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf, |
int vsc) |
{ |
int v, flag; |
|
opj_raw_t *raw = t1->raw; /* RAW component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { |
if (raw_decode(raw)) { |
v = raw_decode(raw); /* ESSAI */ |
*datap = v ? -oneplushalf : oneplushalf; |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
*flagsp |= T1_VISIT; |
} |
} /* VSC and BYPASS by Antonin */ |
|
static INLINE void t1_dec_sigpass_step_mqc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = *flagsp; |
if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { |
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); |
if (mqc_decode(mqc)) { |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); |
v = mqc_decode(mqc) ^ t1_getspb(flag); |
*datap = v ? -oneplushalf : oneplushalf; |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
*flagsp |= T1_VISIT; |
} |
} /* VSC and BYPASS by Antonin */ |
|
static INLINE void t1_dec_sigpass_step_mqc_vsc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf, |
int vsc) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { |
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); |
if (mqc_decode(mqc)) { |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); |
v = mqc_decode(mqc) ^ t1_getspb(flag); |
*datap = v ? -oneplushalf : oneplushalf; |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
*flagsp |= T1_VISIT; |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_enc_sigpass( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int *nmsedec, |
char type, |
int cblksty) |
{ |
int i, j, k, one, vsc; |
*nmsedec = 0; |
one = 1 << (bpno + T1_NMSEDEC_FRACBITS); |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
for (j = k; j < k + 4 && j < t1->h; ++j) { |
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0; |
t1_enc_sigpass_step( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
orient, |
bpno, |
one, |
nmsedec, |
type, |
vsc); |
} |
} |
} |
} |
|
static void t1_dec_sigpass_raw( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int cblksty) |
{ |
int i, j, k, one, half, oneplushalf, vsc; |
one = 1 << bpno; |
half = one >> 1; |
oneplushalf = one | half; |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
for (j = k; j < k + 4 && j < t1->h; ++j) { |
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0; |
t1_dec_sigpass_step_raw( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
orient, |
oneplushalf, |
vsc); |
} |
} |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_dec_sigpass_mqc( |
opj_t1_t *t1, |
int bpno, |
int orient) |
{ |
int i, j, k, one, half, oneplushalf; |
int *data1 = t1->data; |
flag_t *flags1 = &t1->flags[1]; |
one = 1 << bpno; |
half = one >> 1; |
oneplushalf = one | half; |
for (k = 0; k < (t1->h & ~3); k += 4) { |
for (i = 0; i < t1->w; ++i) { |
int *data2 = data1 + i; |
flag_t *flags2 = flags1 + i; |
flags2 += t1->flags_stride; |
t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
} |
data1 += t1->w << 2; |
flags1 += t1->flags_stride << 2; |
} |
for (i = 0; i < t1->w; ++i) { |
int *data2 = data1 + i; |
flag_t *flags2 = flags1 + i; |
for (j = k; j < t1->h; ++j) { |
flags2 += t1->flags_stride; |
t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
} |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_dec_sigpass_mqc_vsc( |
opj_t1_t *t1, |
int bpno, |
int orient) |
{ |
int i, j, k, one, half, oneplushalf, vsc; |
one = 1 << bpno; |
half = one >> 1; |
oneplushalf = one | half; |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
for (j = k; j < k + 4 && j < t1->h; ++j) { |
vsc = (j == k + 3 || j == t1->h - 1) ? 1 : 0; |
t1_dec_sigpass_step_mqc_vsc( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
orient, |
oneplushalf, |
vsc); |
} |
} |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_enc_refpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int bpno, |
int one, |
int *nmsedec, |
char type, |
int vsc) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { |
*nmsedec += t1_getnmsedec_ref(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS); |
v = int_abs(*datap) & one ? 1 : 0; |
mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */ |
if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ |
mqc_bypass_enc(mqc, v); |
} else { |
mqc_encode(mqc, v); |
} |
*flagsp |= T1_REFINE; |
} |
} |
|
static INLINE void t1_dec_refpass_step_raw( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int poshalf, |
int neghalf, |
int vsc) |
{ |
int v, t, flag; |
|
opj_raw_t *raw = t1->raw; /* RAW component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { |
v = raw_decode(raw); |
t = v ? poshalf : neghalf; |
*datap += *datap < 0 ? -t : t; |
*flagsp |= T1_REFINE; |
} |
} /* VSC and BYPASS by Antonin */ |
|
static INLINE void t1_dec_refpass_step_mqc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int poshalf, |
int neghalf) |
{ |
int v, t, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = *flagsp; |
if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { |
mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */ |
v = mqc_decode(mqc); |
t = v ? poshalf : neghalf; |
*datap += *datap < 0 ? -t : t; |
*flagsp |= T1_REFINE; |
} |
} /* VSC and BYPASS by Antonin */ |
|
static INLINE void t1_dec_refpass_step_mqc_vsc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int poshalf, |
int neghalf, |
int vsc) |
{ |
int v, t, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { |
mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */ |
v = mqc_decode(mqc); |
t = v ? poshalf : neghalf; |
*datap += *datap < 0 ? -t : t; |
*flagsp |= T1_REFINE; |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_enc_refpass( |
opj_t1_t *t1, |
int bpno, |
int *nmsedec, |
char type, |
int cblksty) |
{ |
int i, j, k, one, vsc; |
*nmsedec = 0; |
one = 1 << (bpno + T1_NMSEDEC_FRACBITS); |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
for (j = k; j < k + 4 && j < t1->h; ++j) { |
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0; |
t1_enc_refpass_step( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
bpno, |
one, |
nmsedec, |
type, |
vsc); |
} |
} |
} |
} |
|
static void t1_dec_refpass_raw( |
opj_t1_t *t1, |
int bpno, |
int cblksty) |
{ |
int i, j, k, one, poshalf, neghalf; |
int vsc; |
one = 1 << bpno; |
poshalf = one >> 1; |
neghalf = bpno > 0 ? -poshalf : -1; |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
for (j = k; j < k + 4 && j < t1->h; ++j) { |
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0; |
t1_dec_refpass_step_raw( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
poshalf, |
neghalf, |
vsc); |
} |
} |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_dec_refpass_mqc( |
opj_t1_t *t1, |
int bpno) |
{ |
int i, j, k, one, poshalf, neghalf; |
int *data1 = t1->data; |
flag_t *flags1 = &t1->flags[1]; |
one = 1 << bpno; |
poshalf = one >> 1; |
neghalf = bpno > 0 ? -poshalf : -1; |
for (k = 0; k < (t1->h & ~3); k += 4) { |
for (i = 0; i < t1->w; ++i) { |
int *data2 = data1 + i; |
flag_t *flags2 = flags1 + i; |
flags2 += t1->flags_stride; |
t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf); |
data2 += t1->w; |
} |
data1 += t1->w << 2; |
flags1 += t1->flags_stride << 2; |
} |
for (i = 0; i < t1->w; ++i) { |
int *data2 = data1 + i; |
flag_t *flags2 = flags1 + i; |
for (j = k; j < t1->h; ++j) { |
flags2 += t1->flags_stride; |
t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf); |
data2 += t1->w; |
} |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_dec_refpass_mqc_vsc( |
opj_t1_t *t1, |
int bpno) |
{ |
int i, j, k, one, poshalf, neghalf; |
int vsc; |
one = 1 << bpno; |
poshalf = one >> 1; |
neghalf = bpno > 0 ? -poshalf : -1; |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
for (j = k; j < k + 4 && j < t1->h; ++j) { |
vsc = ((j == k + 3 || j == t1->h - 1)) ? 1 : 0; |
t1_dec_refpass_step_mqc_vsc( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
poshalf, |
neghalf, |
vsc); |
} |
} |
} |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_enc_clnpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int bpno, |
int one, |
int *nmsedec, |
int partial, |
int vsc) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if (partial) { |
goto LABEL_PARTIAL; |
} |
if (!(*flagsp & (T1_SIG | T1_VISIT))) { |
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); |
v = int_abs(*datap) & one ? 1 : 0; |
mqc_encode(mqc, v); |
if (v) { |
LABEL_PARTIAL: |
*nmsedec += t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS); |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); |
v = *datap < 0 ? 1 : 0; |
mqc_encode(mqc, v ^ t1_getspb(flag)); |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
} |
*flagsp &= ~T1_VISIT; |
} |
|
static void t1_dec_clnpass_step_partial( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = *flagsp; |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); |
v = mqc_decode(mqc) ^ t1_getspb(flag); |
*datap = v ? -oneplushalf : oneplushalf; |
t1_updateflags(flagsp, v, t1->flags_stride); |
*flagsp &= ~T1_VISIT; |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_dec_clnpass_step( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = *flagsp; |
if (!(flag & (T1_SIG | T1_VISIT))) { |
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); |
if (mqc_decode(mqc)) { |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); |
v = mqc_decode(mqc) ^ t1_getspb(flag); |
*datap = v ? -oneplushalf : oneplushalf; |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
} |
*flagsp &= ~T1_VISIT; |
} /* VSC and BYPASS by Antonin */ |
|
static void t1_dec_clnpass_step_vsc( |
opj_t1_t *t1, |
flag_t *flagsp, |
int *datap, |
int orient, |
int oneplushalf, |
int partial, |
int vsc) |
{ |
int v, flag; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp); |
if (partial) { |
goto LABEL_PARTIAL; |
} |
if (!(flag & (T1_SIG | T1_VISIT))) { |
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); |
if (mqc_decode(mqc)) { |
LABEL_PARTIAL: |
mqc_setcurctx(mqc, t1_getctxno_sc(flag)); |
v = mqc_decode(mqc) ^ t1_getspb(flag); |
*datap = v ? -oneplushalf : oneplushalf; |
t1_updateflags(flagsp, v, t1->flags_stride); |
} |
} |
*flagsp &= ~T1_VISIT; |
} |
|
static void t1_enc_clnpass( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int *nmsedec, |
int cblksty) |
{ |
int i, j, k, one, agg, runlen, vsc; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
*nmsedec = 0; |
one = 1 << (bpno + T1_NMSEDEC_FRACBITS); |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
if (k + 3 < t1->h) { |
if (cblksty & J2K_CCP_CBLKSTY_VSC) { |
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| (MACRO_t1_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)); |
} else { |
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)); |
} |
} else { |
agg = 0; |
} |
if (agg) { |
for (runlen = 0; runlen < 4; ++runlen) { |
if (int_abs(t1->data[((k + runlen)*t1->w) + i]) & one) |
break; |
} |
mqc_setcurctx(mqc, T1_CTXNO_AGG); |
mqc_encode(mqc, runlen != 4); |
if (runlen == 4) { |
continue; |
} |
mqc_setcurctx(mqc, T1_CTXNO_UNI); |
mqc_encode(mqc, runlen >> 1); |
mqc_encode(mqc, runlen & 1); |
} else { |
runlen = 0; |
} |
for (j = k + runlen; j < k + 4 && j < t1->h; ++j) { |
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0; |
t1_enc_clnpass_step( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
orient, |
bpno, |
one, |
nmsedec, |
agg && (j == k + runlen), |
vsc); |
} |
} |
} |
} |
|
static void t1_dec_clnpass( |
opj_t1_t *t1, |
int bpno, |
int orient, |
int cblksty) |
{ |
int i, j, k, one, half, oneplushalf, agg, runlen, vsc; |
int segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
one = 1 << bpno; |
half = one >> 1; |
oneplushalf = one | half; |
if (cblksty & J2K_CCP_CBLKSTY_VSC) { |
for (k = 0; k < t1->h; k += 4) { |
for (i = 0; i < t1->w; ++i) { |
if (k + 3 < t1->h) { |
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| (MACRO_t1_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)); |
} else { |
agg = 0; |
} |
if (agg) { |
mqc_setcurctx(mqc, T1_CTXNO_AGG); |
if (!mqc_decode(mqc)) { |
continue; |
} |
mqc_setcurctx(mqc, T1_CTXNO_UNI); |
runlen = mqc_decode(mqc); |
runlen = (runlen << 1) | mqc_decode(mqc); |
} else { |
runlen = 0; |
} |
for (j = k + runlen; j < k + 4 && j < t1->h; ++j) { |
vsc = (j == k + 3 || j == t1->h - 1) ? 1 : 0; |
t1_dec_clnpass_step_vsc( |
t1, |
&t1->flags[((j+1) * t1->flags_stride) + i + 1], |
&t1->data[(j * t1->w) + i], |
orient, |
oneplushalf, |
agg && (j == k + runlen), |
vsc); |
} |
} |
} |
} else { |
int *data1 = t1->data; |
flag_t *flags1 = &t1->flags[1]; |
for (k = 0; k < (t1->h & ~3); k += 4) { |
for (i = 0; i < t1->w; ++i) { |
int *data2 = data1 + i; |
flag_t *flags2 = flags1 + i; |
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH) |
|| MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)); |
if (agg) { |
mqc_setcurctx(mqc, T1_CTXNO_AGG); |
if (!mqc_decode(mqc)) { |
continue; |
} |
mqc_setcurctx(mqc, T1_CTXNO_UNI); |
runlen = mqc_decode(mqc); |
runlen = (runlen << 1) | mqc_decode(mqc); |
flags2 += runlen * t1->flags_stride; |
data2 += runlen * t1->w; |
for (j = k + runlen; j < k + 4 && j < t1->h; ++j) { |
flags2 += t1->flags_stride; |
if (agg && (j == k + runlen)) { |
t1_dec_clnpass_step_partial(t1, flags2, data2, orient, oneplushalf); |
} else { |
t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf); |
} |
data2 += t1->w; |
} |
} else { |
flags2 += t1->flags_stride; |
t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
flags2 += t1->flags_stride; |
t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
} |
} |
data1 += t1->w << 2; |
flags1 += t1->flags_stride << 2; |
} |
for (i = 0; i < t1->w; ++i) { |
int *data2 = data1 + i; |
flag_t *flags2 = flags1 + i; |
for (j = k; j < t1->h; ++j) { |
flags2 += t1->flags_stride; |
t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf); |
data2 += t1->w; |
} |
} |
} |
|
if (segsym) { |
int v = 0; |
mqc_setcurctx(mqc, T1_CTXNO_UNI); |
v = mqc_decode(mqc); |
v = (v << 1) | mqc_decode(mqc); |
v = (v << 1) | mqc_decode(mqc); |
v = (v << 1) | mqc_decode(mqc); |
/* |
if (v!=0xa) { |
opj_event_msg(t1->cinfo, EVT_WARNING, "Bad segmentation symbol %x\n", v); |
} |
*/ |
} |
} /* VSC and BYPASS by Antonin */ |
|
|
/** mod fixed_quality */ |
static double t1_getwmsedec( |
int nmsedec, |
int compno, |
int level, |
int orient, |
int bpno, |
int qmfbid, |
double stepsize, |
int numcomps, |
int mct) |
{ |
double w1, w2, wmsedec; |
if (qmfbid == 1) { |
w1 = (mct && numcomps==3) ? mct_getnorm(compno) : 1.0; |
w2 = dwt_getnorm(level, orient); |
} else { /* if (qmfbid == 0) */ |
w1 = (mct && numcomps==3) ? mct_getnorm_real(compno) : 1.0; |
w2 = dwt_getnorm_real(level, orient); |
} |
wmsedec = w1 * w2 * stepsize * (1 << bpno); |
wmsedec *= wmsedec * nmsedec / 8192.0; |
|
return wmsedec; |
} |
|
static bool allocate_buffers( |
opj_t1_t *t1, |
int w, |
int h) |
{ |
int datasize=w * h; |
int flagssize; |
|
if(datasize > t1->datasize){ |
opj_aligned_free(t1->data); |
t1->data = (int*) opj_aligned_malloc(datasize * sizeof(int)); |
if(!t1->data){ |
return false; |
} |
t1->datasize=datasize; |
} |
memset(t1->data,0,datasize * sizeof(int)); |
|
t1->flags_stride=w+2; |
flagssize=t1->flags_stride * (h+2); |
|
if(flagssize > t1->flagssize){ |
opj_aligned_free(t1->flags); |
t1->flags = (flag_t*) opj_aligned_malloc(flagssize * sizeof(flag_t)); |
if(!t1->flags){ |
return false; |
} |
t1->flagssize=flagssize; |
} |
memset(t1->flags,0,flagssize * sizeof(flag_t)); |
|
t1->w=w; |
t1->h=h; |
|
return true; |
} |
|
/** mod fixed_quality */ |
static void t1_encode_cblk( |
opj_t1_t *t1, |
opj_tcd_cblk_enc_t* cblk, |
int orient, |
int compno, |
int level, |
int qmfbid, |
double stepsize, |
int cblksty, |
int numcomps, |
int mct, |
opj_tcd_tile_t * tile) |
{ |
double cumwmsedec = 0.0; |
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
int passno, bpno, passtype; |
int nmsedec = 0; |
int i, max; |
char type = T1_TYPE_MQ; |
double tempwmsedec; |
|
max = 0; |
for (i = 0; i < t1->w * t1->h; ++i) { |
int tmp = abs(t1->data[i]); |
max = int_max(max, tmp); |
} |
|
cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0; |
|
bpno = cblk->numbps - 1; |
passtype = 2; |
|
mqc_resetstates(mqc); |
mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46); |
mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3); |
mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4); |
mqc_init_enc(mqc, cblk->data); |
|
for (passno = 0; bpno >= 0; ++passno) { |
opj_tcd_pass_t *pass = &cblk->passes[passno]; |
int correction = 3; |
type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; |
|
switch (passtype) { |
case 0: |
t1_enc_sigpass(t1, bpno, orient, &nmsedec, type, cblksty); |
break; |
case 1: |
t1_enc_refpass(t1, bpno, &nmsedec, type, cblksty); |
break; |
case 2: |
t1_enc_clnpass(t1, bpno, orient, &nmsedec, cblksty); |
/* code switch SEGMARK (i.e. SEGSYM) */ |
if (cblksty & J2K_CCP_CBLKSTY_SEGSYM) |
mqc_segmark_enc(mqc); |
break; |
} |
|
/* fixed_quality */ |
tempwmsedec = t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps, mct); |
cumwmsedec += tempwmsedec; |
tile->distotile += tempwmsedec; |
|
/* Code switch "RESTART" (i.e. TERMALL) */ |
if ((cblksty & J2K_CCP_CBLKSTY_TERMALL) && !((passtype == 2) && (bpno - 1 < 0))) { |
if (type == T1_TYPE_RAW) { |
mqc_flush(mqc); |
correction = 1; |
/* correction = mqc_bypass_flush_enc(); */ |
} else { /* correction = mqc_restart_enc(); */ |
mqc_flush(mqc); |
correction = 1; |
} |
pass->term = 1; |
} else { |
if (((bpno < (cblk->numbps - 4) && (passtype > 0)) |
|| ((bpno == (cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) { |
if (type == T1_TYPE_RAW) { |
mqc_flush(mqc); |
correction = 1; |
/* correction = mqc_bypass_flush_enc(); */ |
} else { /* correction = mqc_restart_enc(); */ |
mqc_flush(mqc); |
correction = 1; |
} |
pass->term = 1; |
} else { |
pass->term = 0; |
} |
} |
|
if (++passtype == 3) { |
passtype = 0; |
bpno--; |
} |
|
if (pass->term && bpno > 0) { |
type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; |
if (type == T1_TYPE_RAW) |
mqc_bypass_init_enc(mqc); |
else |
mqc_restart_init_enc(mqc); |
} |
|
pass->distortiondec = cumwmsedec; |
pass->rate = mqc_numbytes(mqc) + correction; /* FIXME */ |
|
/* Code-switch "RESET" */ |
if (cblksty & J2K_CCP_CBLKSTY_RESET) |
mqc_reset_enc(mqc); |
} |
|
/* Code switch "ERTERM" (i.e. PTERM) */ |
if (cblksty & J2K_CCP_CBLKSTY_PTERM) |
mqc_erterm_enc(mqc); |
else /* Default coding */ if (!(cblksty & J2K_CCP_CBLKSTY_LAZY)) |
mqc_flush(mqc); |
|
cblk->totalpasses = passno; |
|
for (passno = 0; passno<cblk->totalpasses; passno++) { |
opj_tcd_pass_t *pass = &cblk->passes[passno]; |
if (pass->rate > mqc_numbytes(mqc)) |
pass->rate = mqc_numbytes(mqc); |
/*Preventing generation of FF as last data byte of a pass*/ |
if((pass->rate>1) && (cblk->data[pass->rate - 1] == 0xFF)){ |
pass->rate--; |
} |
pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate); |
} |
} |
|
static void t1_decode_cblk( |
opj_t1_t *t1, |
opj_tcd_cblk_dec_t* cblk, |
int orient, |
int roishift, |
int cblksty) |
{ |
opj_raw_t *raw = t1->raw; /* RAW component */ |
opj_mqc_t *mqc = t1->mqc; /* MQC component */ |
|
int bpno, passtype; |
int segno, passno; |
char type = T1_TYPE_MQ; /* BYPASS mode */ |
|
if(!allocate_buffers( |
t1, |
cblk->x1 - cblk->x0, |
cblk->y1 - cblk->y0)) |
{ |
return; |
} |
|
bpno = roishift + cblk->numbps - 1; |
passtype = 2; |
|
mqc_resetstates(mqc); |
mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46); |
mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3); |
mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4); |
|
for (segno = 0; segno < cblk->numsegs; ++segno) { |
opj_tcd_seg_t *seg = &cblk->segs[segno]; |
|
/* BYPASS mode */ |
type = ((bpno <= (cblk->numbps - 1) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; |
/* FIXME: slviewer gets here with a null pointer. Why? Partially downloaded and/or corrupt textures? */ |
if(seg->data == NULL){ |
continue; |
} |
if (type == T1_TYPE_RAW) { |
raw_init_dec(raw, (*seg->data) + seg->dataindex, seg->len); |
} else { |
mqc_init_dec(mqc, (*seg->data) + seg->dataindex, seg->len); |
} |
|
for (passno = 0; passno < seg->numpasses; ++passno) { |
switch (passtype) { |
case 0: |
if (type == T1_TYPE_RAW) { |
t1_dec_sigpass_raw(t1, bpno+1, orient, cblksty); |
} else { |
if (cblksty & J2K_CCP_CBLKSTY_VSC) { |
t1_dec_sigpass_mqc_vsc(t1, bpno+1, orient); |
} else { |
t1_dec_sigpass_mqc(t1, bpno+1, orient); |
} |
} |
break; |
case 1: |
if (type == T1_TYPE_RAW) { |
t1_dec_refpass_raw(t1, bpno+1, cblksty); |
} else { |
if (cblksty & J2K_CCP_CBLKSTY_VSC) { |
t1_dec_refpass_mqc_vsc(t1, bpno+1); |
} else { |
t1_dec_refpass_mqc(t1, bpno+1); |
} |
} |
break; |
case 2: |
t1_dec_clnpass(t1, bpno+1, orient, cblksty); |
break; |
} |
|
if ((cblksty & J2K_CCP_CBLKSTY_RESET) && type == T1_TYPE_MQ) { |
mqc_resetstates(mqc); |
mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46); |
mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3); |
mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4); |
} |
if (++passtype == 3) { |
passtype = 0; |
bpno--; |
} |
} |
} |
} |
|
/* ----------------------------------------------------------------------- */ |
|
opj_t1_t* t1_create(opj_common_ptr cinfo) { |
opj_t1_t *t1 = (opj_t1_t*) opj_malloc(sizeof(opj_t1_t)); |
if(!t1) |
return NULL; |
|
t1->cinfo = cinfo; |
/* create MQC and RAW handles */ |
t1->mqc = mqc_create(); |
t1->raw = raw_create(); |
|
t1->data=NULL; |
t1->flags=NULL; |
t1->datasize=0; |
t1->flagssize=0; |
|
return t1; |
} |
|
void t1_destroy(opj_t1_t *t1) { |
if(t1) { |
/* destroy MQC and RAW handles */ |
mqc_destroy(t1->mqc); |
raw_destroy(t1->raw); |
opj_aligned_free(t1->data); |
opj_aligned_free(t1->flags); |
opj_free(t1); |
} |
} |
|
void t1_encode_cblks( |
opj_t1_t *t1, |
opj_tcd_tile_t *tile, |
opj_tcp_t *tcp) |
{ |
int compno, resno, bandno, precno, cblkno; |
|
tile->distotile = 0; /* fixed_quality */ |
|
for (compno = 0; compno < tile->numcomps; ++compno) { |
opj_tcd_tilecomp_t* tilec = &tile->comps[compno]; |
opj_tccp_t* tccp = &tcp->tccps[compno]; |
int tile_w = tilec->x1 - tilec->x0; |
|
for (resno = 0; resno < tilec->numresolutions; ++resno) { |
opj_tcd_resolution_t *res = &tilec->resolutions[resno]; |
|
for (bandno = 0; bandno < res->numbands; ++bandno) { |
opj_tcd_band_t* restrict band = &res->bands[bandno]; |
|
for (precno = 0; precno < res->pw * res->ph; ++precno) { |
opj_tcd_precinct_t *prc = &band->precincts[precno]; |
|
for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) { |
opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno]; |
int* restrict datap; |
int* restrict tiledp; |
int cblk_w; |
int cblk_h; |
int i, j; |
|
int x = cblk->x0 - band->x0; |
int y = cblk->y0 - band->y0; |
if (band->bandno & 1) { |
opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; |
x += pres->x1 - pres->x0; |
} |
if (band->bandno & 2) { |
opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; |
y += pres->y1 - pres->y0; |
} |
|
if(!allocate_buffers( |
t1, |
cblk->x1 - cblk->x0, |
cblk->y1 - cblk->y0)) |
{ |
return; |
} |
|
datap=t1->data; |
cblk_w = t1->w; |
cblk_h = t1->h; |
|
tiledp=&tilec->data[(y * tile_w) + x]; |
if (tccp->qmfbid == 1) { |
for (j = 0; j < cblk_h; ++j) { |
for (i = 0; i < cblk_w; ++i) { |
int tmp = tiledp[(j * tile_w) + i]; |
datap[(j * cblk_w) + i] = tmp << T1_NMSEDEC_FRACBITS; |
} |
} |
} else { /* if (tccp->qmfbid == 0) */ |
for (j = 0; j < cblk_h; ++j) { |
for (i = 0; i < cblk_w; ++i) { |
int tmp = tiledp[(j * tile_w) + i]; |
datap[(j * cblk_w) + i] = |
fix_mul( |
tmp, |
8192 * 8192 / ((int) floor(band->stepsize * 8192))) >> (11 - T1_NMSEDEC_FRACBITS); |
} |
} |
} |
|
t1_encode_cblk( |
t1, |
cblk, |
band->bandno, |
compno, |
tilec->numresolutions - 1 - resno, |
tccp->qmfbid, |
band->stepsize, |
tccp->cblksty, |
tile->numcomps, |
tcp->mct, |
tile); |
|
} /* cblkno */ |
} /* precno */ |
} /* bandno */ |
} /* resno */ |
} /* compno */ |
} |
|
void t1_decode_cblks( |
opj_t1_t* t1, |
opj_tcd_tilecomp_t* tilec, |
opj_tccp_t* tccp) |
{ |
int resno, bandno, precno, cblkno; |
|
int tile_w = tilec->x1 - tilec->x0; |
|
for (resno = 0; resno < tilec->numresolutions; ++resno) { |
opj_tcd_resolution_t* res = &tilec->resolutions[resno]; |
|
for (bandno = 0; bandno < res->numbands; ++bandno) { |
opj_tcd_band_t* restrict band = &res->bands[bandno]; |
|
for (precno = 0; precno < res->pw * res->ph; ++precno) { |
opj_tcd_precinct_t* precinct = &band->precincts[precno]; |
|
for (cblkno = 0; cblkno < precinct->cw * precinct->ch; ++cblkno) { |
opj_tcd_cblk_dec_t* cblk = &precinct->cblks.dec[cblkno]; |
int* restrict datap; |
int cblk_w, cblk_h; |
int x, y; |
int i, j; |
|
t1_decode_cblk( |
t1, |
cblk, |
band->bandno, |
tccp->roishift, |
tccp->cblksty); |
|
x = cblk->x0 - band->x0; |
y = cblk->y0 - band->y0; |
if (band->bandno & 1) { |
opj_tcd_resolution_t* pres = &tilec->resolutions[resno - 1]; |
x += pres->x1 - pres->x0; |
} |
if (band->bandno & 2) { |
opj_tcd_resolution_t* pres = &tilec->resolutions[resno - 1]; |
y += pres->y1 - pres->y0; |
} |
|
datap=t1->data; |
cblk_w = t1->w; |
cblk_h = t1->h; |
|
if (tccp->roishift) { |
int thresh = 1 << tccp->roishift; |
for (j = 0; j < cblk_h; ++j) { |
for (i = 0; i < cblk_w; ++i) { |
int val = datap[(j * cblk_w) + i]; |
int mag = abs(val); |
if (mag >= thresh) { |
mag >>= tccp->roishift; |
datap[(j * cblk_w) + i] = val < 0 ? -mag : mag; |
} |
} |
} |
} |
|
if (tccp->qmfbid == 1) { |
int* restrict tiledp = &tilec->data[(y * tile_w) + x]; |
for (j = 0; j < cblk_h; ++j) { |
for (i = 0; i < cblk_w; ++i) { |
int tmp = datap[(j * cblk_w) + i]; |
((int*)tiledp)[(j * tile_w) + i] = tmp / 2; |
} |
} |
} else { /* if (tccp->qmfbid == 0) */ |
float* restrict tiledp = (float*) &tilec->data[(y * tile_w) + x]; |
for (j = 0; j < cblk_h; ++j) { |
float* restrict tiledp2 = tiledp; |
for (i = 0; i < cblk_w; ++i) { |
float tmp = *datap * band->stepsize; |
*tiledp2 = tmp; |
datap++; |
tiledp2++; |
} |
tiledp += tile_w; |
} |
} |
opj_free(cblk->data); |
opj_free(cblk->segs); |
} /* cblkno */ |
opj_free(precinct->cblks.dec); |
} /* precno */ |
} /* bandno */ |
} /* resno */ |
} |
|