init - 初始化项目
This commit is contained in:
Lee Nony
959
3rdparty/libjasper/jpc_t1enc.c
vendored
Normal file
959
3rdparty/libjasper/jpc_t1enc.c
vendored
Normal file
@@ -0,0 +1,959 @@
|
||||
/*
|
||||
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
|
||||
* British Columbia.
|
||||
* Copyright (c) 2001-2002 Michael David Adams.
|
||||
* All rights reserved.
|
||||
*/
|
||||
|
||||
/* __START_OF_JASPER_LICENSE__
|
||||
*
|
||||
* JasPer License Version 2.0
|
||||
*
|
||||
* Copyright (c) 2001-2006 Michael David Adams
|
||||
* Copyright (c) 1999-2000 Image Power, Inc.
|
||||
* Copyright (c) 1999-2000 The University of British Columbia
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person (the
|
||||
* "User") obtaining a copy of this software and associated documentation
|
||||
* files (the "Software"), to deal in the Software without restriction,
|
||||
* including without limitation the rights to use, copy, modify, merge,
|
||||
* publish, distribute, and/or sell copies of the Software, and to permit
|
||||
* persons to whom the Software is furnished to do so, subject to the
|
||||
* following conditions:
|
||||
*
|
||||
* 1. The above copyright notices and this permission notice (which
|
||||
* includes the disclaimer below) shall be included in all copies or
|
||||
* substantial portions of the Software.
|
||||
*
|
||||
* 2. The name of a copyright holder shall not be used to endorse or
|
||||
* promote products derived from the Software without specific prior
|
||||
* written permission.
|
||||
*
|
||||
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
|
||||
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
|
||||
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
|
||||
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
|
||||
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
||||
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
|
||||
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
|
||||
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
|
||||
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
|
||||
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
|
||||
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
|
||||
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
|
||||
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
|
||||
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
|
||||
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
|
||||
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
|
||||
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
|
||||
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
|
||||
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
|
||||
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
|
||||
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
|
||||
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
|
||||
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
|
||||
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
|
||||
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
|
||||
*
|
||||
* __END_OF_JASPER_LICENSE__
|
||||
*/
|
||||
|
||||
/*
|
||||
* Tier 1 Encoder
|
||||
*
|
||||
* $Id: jpc_t1enc.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
|
||||
*/
|
||||
|
||||
/******************************************************************************\
|
||||
* Includes.
|
||||
\******************************************************************************/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <assert.h>
|
||||
|
||||
#include "jasper/jas_fix.h"
|
||||
#include "jasper/jas_malloc.h"
|
||||
#include "jasper/jas_math.h"
|
||||
|
||||
#include "jpc_t1enc.h"
|
||||
#include "jpc_t1cod.h"
|
||||
#include "jpc_enc.h"
|
||||
#include "jpc_cod.h"
|
||||
#include "jpc_math.h"
|
||||
|
||||
static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int,
|
||||
jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
|
||||
|
||||
static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int, jas_matrix_t *flags,
|
||||
jas_matrix_t *data, int term, long *nmsedec);
|
||||
|
||||
static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int,
|
||||
int, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
|
||||
|
||||
static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int,
|
||||
jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
|
||||
|
||||
static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int,
|
||||
jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
|
||||
|
||||
/******************************************************************************\
|
||||
* Code for encoding code blocks.
|
||||
\******************************************************************************/
|
||||
|
||||
/* Encode all of the code blocks associated with the current tile. */
|
||||
int jpc_enc_enccblks(jpc_enc_t *enc)
|
||||
{
|
||||
jpc_enc_tcmpt_t *tcmpt;
|
||||
jpc_enc_tcmpt_t *endcomps;
|
||||
jpc_enc_rlvl_t *lvl;
|
||||
jpc_enc_rlvl_t *endlvls;
|
||||
jpc_enc_band_t *band;
|
||||
jpc_enc_band_t *endbands;
|
||||
jpc_enc_cblk_t *cblk;
|
||||
jpc_enc_cblk_t *endcblks;
|
||||
int i;
|
||||
int j;
|
||||
int mx;
|
||||
int bmx;
|
||||
int v;
|
||||
jpc_enc_tile_t *tile;
|
||||
uint_fast32_t prcno;
|
||||
jpc_enc_prc_t *prc;
|
||||
|
||||
tile = enc->curtile;
|
||||
|
||||
endcomps = &tile->tcmpts[tile->numtcmpts];
|
||||
for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) {
|
||||
endlvls = &tcmpt->rlvls[tcmpt->numrlvls];
|
||||
for (lvl = tcmpt->rlvls; lvl != endlvls; ++lvl) {
|
||||
if (!lvl->bands) {
|
||||
continue;
|
||||
}
|
||||
endbands = &lvl->bands[lvl->numbands];
|
||||
for (band = lvl->bands; band != endbands; ++band) {
|
||||
if (!band->data) {
|
||||
continue;
|
||||
}
|
||||
for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
|
||||
if (!prc->cblks) {
|
||||
continue;
|
||||
}
|
||||
bmx = 0;
|
||||
endcblks = &prc->cblks[prc->numcblks];
|
||||
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
|
||||
mx = 0;
|
||||
for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) {
|
||||
for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) {
|
||||
v = abs(jas_matrix_get(cblk->data, i, j));
|
||||
if (v > mx) {
|
||||
mx = v;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (mx > bmx) {
|
||||
bmx = mx;
|
||||
}
|
||||
cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0);
|
||||
}
|
||||
|
||||
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
|
||||
cblk->numimsbs = band->numbps - cblk->numbps;
|
||||
assert(cblk->numimsbs >= 0);
|
||||
}
|
||||
|
||||
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
|
||||
if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) {
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int getthebyte(jas_stream_t *in, long off)
|
||||
{
|
||||
int c;
|
||||
long oldpos;
|
||||
oldpos = jas_stream_tell(in);
|
||||
assert(oldpos >= 0);
|
||||
jas_stream_seek(in, off, SEEK_SET);
|
||||
c = jas_stream_peekc(in);
|
||||
jas_stream_seek(in, oldpos, SEEK_SET);
|
||||
return c;
|
||||
}
|
||||
|
||||
/* Encode a single code block. */
|
||||
int jpc_enc_enccblk(jpc_enc_t *enc, jas_stream_t *out, jpc_enc_tcmpt_t *tcmpt, jpc_enc_band_t *band, jpc_enc_cblk_t *cblk)
|
||||
{
|
||||
jpc_enc_pass_t *pass;
|
||||
jpc_enc_pass_t *endpasses;
|
||||
int bitpos;
|
||||
int n;
|
||||
int adjust;
|
||||
int ret;
|
||||
int passtype;
|
||||
int t;
|
||||
jpc_bitstream_t *bout;
|
||||
jpc_enc_pass_t *termpass;
|
||||
jpc_enc_rlvl_t *rlvl;
|
||||
int vcausal;
|
||||
int segsym;
|
||||
int termmode;
|
||||
int c;
|
||||
|
||||
bout = 0;
|
||||
rlvl = band->rlvl;
|
||||
|
||||
cblk->stream = jas_stream_memopen(0, 0);
|
||||
assert(cblk->stream);
|
||||
cblk->mqenc = jpc_mqenc_create(JPC_NUMCTXS, cblk->stream);
|
||||
assert(cblk->mqenc);
|
||||
jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs);
|
||||
|
||||
cblk->numpasses = (cblk->numbps > 0) ? (3 * cblk->numbps - 2) : 0;
|
||||
if (cblk->numpasses > 0) {
|
||||
cblk->passes = jas_alloc2(cblk->numpasses, sizeof(jpc_enc_pass_t));
|
||||
assert(cblk->passes);
|
||||
} else {
|
||||
cblk->passes = 0;
|
||||
}
|
||||
endpasses = &cblk->passes[cblk->numpasses];
|
||||
for (pass = cblk->passes; pass != endpasses; ++pass) {
|
||||
pass->start = 0;
|
||||
pass->end = 0;
|
||||
pass->term = JPC_ISTERMINATED(pass - cblk->passes, 0, cblk->numpasses, (tcmpt->cblksty & JPC_COX_TERMALL) != 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0);
|
||||
pass->type = JPC_SEGTYPE(pass - cblk->passes, 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0);
|
||||
pass->lyrno = -1;
|
||||
if (pass == endpasses - 1) {
|
||||
assert(pass->term == 1);
|
||||
pass->term = 1;
|
||||
}
|
||||
}
|
||||
|
||||
cblk->flags = jas_matrix_create(jas_matrix_numrows(cblk->data) + 2,
|
||||
jas_matrix_numcols(cblk->data) + 2);
|
||||
assert(cblk->flags);
|
||||
|
||||
|
||||
bitpos = cblk->numbps - 1;
|
||||
pass = cblk->passes;
|
||||
n = cblk->numpasses;
|
||||
while (--n >= 0) {
|
||||
|
||||
if (pass->type == JPC_SEG_MQ) {
|
||||
/* NOP */
|
||||
} else {
|
||||
assert(pass->type == JPC_SEG_RAW);
|
||||
if (!bout) {
|
||||
bout = jpc_bitstream_sopen(cblk->stream, "w");
|
||||
assert(bout);
|
||||
}
|
||||
}
|
||||
|
||||
#if 1
|
||||
passtype = (pass - cblk->passes + 2) % 3;
|
||||
#else
|
||||
passtype = JPC_PASSTYPE(pass - cblk->passes + 2);
|
||||
#endif
|
||||
pass->start = jas_stream_tell(cblk->stream);
|
||||
#if 0
|
||||
assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream));
|
||||
#endif
|
||||
assert(bitpos >= 0);
|
||||
vcausal = (tcmpt->cblksty & JPC_COX_VSC) != 0;
|
||||
segsym = (tcmpt->cblksty & JPC_COX_SEGSYM) != 0;
|
||||
if (pass->term) {
|
||||
termmode = ((tcmpt->cblksty & JPC_COX_PTERM) ?
|
||||
JPC_MQENC_PTERM : JPC_MQENC_DEFTERM) + 1;
|
||||
} else {
|
||||
termmode = 0;
|
||||
}
|
||||
switch (passtype) {
|
||||
case JPC_SIGPASS:
|
||||
ret = (pass->type == JPC_SEG_MQ) ? jpc_encsigpass(cblk->mqenc,
|
||||
bitpos, band->orient, vcausal, cblk->flags,
|
||||
cblk->data, termmode, &pass->nmsedec) :
|
||||
jpc_encrawsigpass(bout, bitpos, vcausal, cblk->flags,
|
||||
cblk->data, termmode, &pass->nmsedec);
|
||||
break;
|
||||
case JPC_REFPASS:
|
||||
ret = (pass->type == JPC_SEG_MQ) ? jpc_encrefpass(cblk->mqenc,
|
||||
bitpos, vcausal, cblk->flags, cblk->data, termmode,
|
||||
&pass->nmsedec) : jpc_encrawrefpass(bout, bitpos,
|
||||
vcausal, cblk->flags, cblk->data, termmode,
|
||||
&pass->nmsedec);
|
||||
break;
|
||||
case JPC_CLNPASS:
|
||||
assert(pass->type == JPC_SEG_MQ);
|
||||
ret = jpc_encclnpass(cblk->mqenc, bitpos, band->orient,
|
||||
vcausal, segsym, cblk->flags, cblk->data, termmode,
|
||||
&pass->nmsedec);
|
||||
break;
|
||||
default:
|
||||
assert(0);
|
||||
break;
|
||||
}
|
||||
|
||||
if (pass->type == JPC_SEG_MQ) {
|
||||
if (pass->term) {
|
||||
jpc_mqenc_init(cblk->mqenc);
|
||||
}
|
||||
jpc_mqenc_getstate(cblk->mqenc, &pass->mqencstate);
|
||||
pass->end = jas_stream_tell(cblk->stream);
|
||||
if (tcmpt->cblksty & JPC_COX_RESET) {
|
||||
jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs);
|
||||
}
|
||||
} else {
|
||||
if (pass->term) {
|
||||
if (jpc_bitstream_pending(bout)) {
|
||||
jpc_bitstream_outalign(bout, 0x2a);
|
||||
}
|
||||
jpc_bitstream_close(bout);
|
||||
bout = 0;
|
||||
pass->end = jas_stream_tell(cblk->stream);
|
||||
} else {
|
||||
pass->end = jas_stream_tell(cblk->stream) +
|
||||
jpc_bitstream_pending(bout);
|
||||
/* NOTE - This will not work. need to adjust by # of pending output bytes */
|
||||
}
|
||||
}
|
||||
#if 0
|
||||
/* XXX - This assertion fails sometimes when various coding modes are used.
|
||||
This seems to be harmless, but why does it happen at all? */
|
||||
assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream));
|
||||
#endif
|
||||
|
||||
pass->wmsedec = jpc_fixtodbl(band->rlvl->tcmpt->synweight) *
|
||||
jpc_fixtodbl(band->rlvl->tcmpt->synweight) *
|
||||
jpc_fixtodbl(band->synweight) *
|
||||
jpc_fixtodbl(band->synweight) *
|
||||
jpc_fixtodbl(band->absstepsize) * jpc_fixtodbl(band->absstepsize) *
|
||||
((double) (1 << bitpos)) * ((double)(1 << bitpos)) *
|
||||
jpc_fixtodbl(pass->nmsedec);
|
||||
pass->cumwmsedec = pass->wmsedec;
|
||||
if (pass != cblk->passes) {
|
||||
pass->cumwmsedec += pass[-1].cumwmsedec;
|
||||
}
|
||||
if (passtype == JPC_CLNPASS) {
|
||||
--bitpos;
|
||||
}
|
||||
++pass;
|
||||
}
|
||||
|
||||
#if 0
|
||||
dump_passes(cblk->passes, cblk->numpasses, cblk);
|
||||
#endif
|
||||
|
||||
n = 0;
|
||||
endpasses = &cblk->passes[cblk->numpasses];
|
||||
for (pass = cblk->passes; pass != endpasses; ++pass) {
|
||||
if (pass->start < n) {
|
||||
pass->start = n;
|
||||
}
|
||||
if (pass->end < n) {
|
||||
pass->end = n;
|
||||
}
|
||||
if (!pass->term) {
|
||||
termpass = pass;
|
||||
while (termpass - pass < cblk->numpasses &&
|
||||
!termpass->term) {
|
||||
++termpass;
|
||||
}
|
||||
if (pass->type == JPC_SEG_MQ) {
|
||||
t = (pass->mqencstate.lastbyte == 0xff) ? 1 : 0;
|
||||
if (pass->mqencstate.ctreg >= 5) {
|
||||
adjust = 4 + t;
|
||||
} else {
|
||||
adjust = 5 + t;
|
||||
}
|
||||
pass->end += adjust;
|
||||
}
|
||||
if (pass->end > termpass->end) {
|
||||
pass->end = termpass->end;
|
||||
}
|
||||
if ((c = getthebyte(cblk->stream, pass->end - 1)) == EOF) {
|
||||
abort();
|
||||
}
|
||||
if (c == 0xff) {
|
||||
++pass->end;
|
||||
}
|
||||
n = JAS_MAX(n, pass->end);
|
||||
} else {
|
||||
n = JAS_MAX(n, pass->end);
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
dump_passes(cblk->passes, cblk->numpasses, cblk);
|
||||
#endif
|
||||
|
||||
if (bout) {
|
||||
jpc_bitstream_close(bout);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/******************************************************************************\
|
||||
* Code for significance pass.
|
||||
\******************************************************************************/
|
||||
|
||||
#define sigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, orient, mqenc, vcausalflag) \
|
||||
{ \
|
||||
int f; \
|
||||
int v; \
|
||||
f = *(fp); \
|
||||
if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
|
||||
v = (abs(*(dp)) & (one)) ? 1 : 0; \
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \
|
||||
jpc_mqenc_putbit(mqenc, v); \
|
||||
if (v) { \
|
||||
*(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
|
||||
v = ((*(dp) < 0) ? 1 : 0); \
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_GETSCCTXNO(f)); \
|
||||
jpc_mqenc_putbit(mqenc, v ^ JPC_GETSPB(f)); \
|
||||
JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \
|
||||
*(fp) |= JPC_SIG; \
|
||||
} \
|
||||
*(fp) |= JPC_VISIT; \
|
||||
} \
|
||||
}
|
||||
|
||||
static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag,
|
||||
jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int one;
|
||||
int vscanlen;
|
||||
int width;
|
||||
int height;
|
||||
int frowstep;
|
||||
int drowstep;
|
||||
int fstripestep;
|
||||
int dstripestep;
|
||||
jpc_fix_t *fstripestart;
|
||||
jpc_fix_t *dstripestart;
|
||||
jpc_fix_t *fp;
|
||||
jpc_fix_t *dp;
|
||||
jpc_fix_t *fvscanstart;
|
||||
jpc_fix_t *dvscanstart;
|
||||
int k;
|
||||
|
||||
*nmsedec = 0;
|
||||
width = jas_matrix_numcols(data);
|
||||
height = jas_matrix_numrows(data);
|
||||
frowstep = jas_matrix_rowstep(flags);
|
||||
drowstep = jas_matrix_rowstep(data);
|
||||
fstripestep = frowstep << 2;
|
||||
dstripestep = drowstep << 2;
|
||||
|
||||
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||||
|
||||
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||||
dstripestart = jas_matrix_getref(data, 0, 0);
|
||||
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||||
dstripestart += dstripestep) {
|
||||
fvscanstart = fstripestart;
|
||||
dvscanstart = dstripestart;
|
||||
vscanlen = JAS_MIN(i, 4);
|
||||
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||||
fp = fvscanstart;
|
||||
dp = dvscanstart;
|
||||
k = vscanlen;
|
||||
|
||||
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, orient, mqenc, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, orient, mqenc, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, orient, mqenc, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, orient, mqenc, 0);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if (term) {
|
||||
jpc_mqenc_flush(mqenc, term - 1);
|
||||
}
|
||||
|
||||
return jpc_mqenc_error(mqenc) ? (-1) : 0;
|
||||
}
|
||||
|
||||
#define rawsigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, out, vcausalflag) \
|
||||
{ \
|
||||
jpc_fix_t f = *(fp); \
|
||||
jpc_fix_t v; \
|
||||
if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
|
||||
v = (abs(*(dp)) & (one)) ? 1 : 0; \
|
||||
if ((jpc_bitstream_putbit((out), v)) == EOF) { \
|
||||
return -1; \
|
||||
} \
|
||||
if (v) { \
|
||||
*(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
|
||||
v = ((*(dp) < 0) ? 1 : 0); \
|
||||
if (jpc_bitstream_putbit(out, v) == EOF) { \
|
||||
return -1; \
|
||||
} \
|
||||
JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \
|
||||
*(fp) |= JPC_SIG; \
|
||||
} \
|
||||
*(fp) |= JPC_VISIT; \
|
||||
} \
|
||||
}
|
||||
|
||||
static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags,
|
||||
jas_matrix_t *data, int term, long *nmsedec)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int k;
|
||||
int one;
|
||||
int vscanlen;
|
||||
int width;
|
||||
int height;
|
||||
int frowstep;
|
||||
int drowstep;
|
||||
int fstripestep;
|
||||
int dstripestep;
|
||||
jpc_fix_t *fstripestart;
|
||||
jpc_fix_t *dstripestart;
|
||||
jpc_fix_t *fp;
|
||||
jpc_fix_t *dp;
|
||||
jpc_fix_t *fvscanstart;
|
||||
jpc_fix_t *dvscanstart;
|
||||
|
||||
*nmsedec = 0;
|
||||
width = jas_matrix_numcols(data);
|
||||
height = jas_matrix_numrows(data);
|
||||
frowstep = jas_matrix_rowstep(flags);
|
||||
drowstep = jas_matrix_rowstep(data);
|
||||
fstripestep = frowstep << 2;
|
||||
dstripestep = drowstep << 2;
|
||||
|
||||
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||||
|
||||
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||||
dstripestart = jas_matrix_getref(data, 0, 0);
|
||||
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||||
dstripestart += dstripestep) {
|
||||
fvscanstart = fstripestart;
|
||||
dvscanstart = dstripestart;
|
||||
vscanlen = JAS_MIN(i, 4);
|
||||
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||||
fp = fvscanstart;
|
||||
dp = dvscanstart;
|
||||
k = vscanlen;
|
||||
|
||||
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, out, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
|
||||
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, out, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
|
||||
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, out, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
|
||||
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||||
nmsedec, out, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if (term) {
|
||||
jpc_bitstream_outalign(out, 0x2a);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/******************************************************************************\
|
||||
* Code for refinement pass.
|
||||
\******************************************************************************/
|
||||
|
||||
#define refpass_step(fp, dp, bitpos, one, nmsedec, mqenc, vcausalflag) \
|
||||
{ \
|
||||
int v; \
|
||||
if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
|
||||
(d) = *(dp); \
|
||||
*(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \
|
||||
jpc_mqenc_setcurctx((mqenc), JPC_GETMAGCTXNO(*(fp))); \
|
||||
v = (abs(d) & (one)) ? 1 : 0; \
|
||||
jpc_mqenc_putbit((mqenc), v); \
|
||||
*(fp) |= JPC_REFINE; \
|
||||
} \
|
||||
}
|
||||
|
||||
static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data,
|
||||
int term, long *nmsedec)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int one;
|
||||
int vscanlen;
|
||||
int d;
|
||||
int width;
|
||||
int height;
|
||||
int frowstep;
|
||||
int drowstep;
|
||||
int fstripestep;
|
||||
int dstripestep;
|
||||
jpc_fix_t *fstripestart;
|
||||
jpc_fix_t *dstripestart;
|
||||
jpc_fix_t *fvscanstart;
|
||||
jpc_fix_t *dvscanstart;
|
||||
jpc_fix_t *dp;
|
||||
jpc_fix_t *fp;
|
||||
int k;
|
||||
|
||||
*nmsedec = 0;
|
||||
width = jas_matrix_numcols(data);
|
||||
height = jas_matrix_numrows(data);
|
||||
frowstep = jas_matrix_rowstep(flags);
|
||||
drowstep = jas_matrix_rowstep(data);
|
||||
fstripestep = frowstep << 2;
|
||||
dstripestep = drowstep << 2;
|
||||
|
||||
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||||
|
||||
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||||
dstripestart = jas_matrix_getref(data, 0, 0);
|
||||
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||||
dstripestart += dstripestep) {
|
||||
fvscanstart = fstripestart;
|
||||
dvscanstart = dstripestart;
|
||||
vscanlen = JAS_MIN(i, 4);
|
||||
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||||
fp = fvscanstart;
|
||||
dp = dvscanstart;
|
||||
k = vscanlen;
|
||||
|
||||
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
mqenc, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
mqenc, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
mqenc, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
mqenc, 0);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if (term) {
|
||||
jpc_mqenc_flush(mqenc, term - 1);
|
||||
}
|
||||
|
||||
return jpc_mqenc_error(mqenc) ? (-1) : 0;
|
||||
}
|
||||
|
||||
#define rawrefpass_step(fp, dp, bitpos, one, nmsedec, out, vcausalflag) \
|
||||
{ \
|
||||
jpc_fix_t d; \
|
||||
jpc_fix_t v; \
|
||||
if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
|
||||
d = *(dp); \
|
||||
*(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \
|
||||
v = (abs(d) & (one)) ? 1 : 0; \
|
||||
if (jpc_bitstream_putbit((out), v) == EOF) { \
|
||||
return -1; \
|
||||
} \
|
||||
*(fp) |= JPC_REFINE; \
|
||||
} \
|
||||
}
|
||||
|
||||
static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags,
|
||||
jas_matrix_t *data, int term, long *nmsedec)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int k;
|
||||
int one;
|
||||
int vscanlen;
|
||||
int width;
|
||||
int height;
|
||||
int frowstep;
|
||||
int drowstep;
|
||||
int fstripestep;
|
||||
int dstripestep;
|
||||
jpc_fix_t *fstripestart;
|
||||
jpc_fix_t *dstripestart;
|
||||
jpc_fix_t *fvscanstart;
|
||||
jpc_fix_t *dvscanstart;
|
||||
jpc_fix_t *dp;
|
||||
jpc_fix_t *fp;
|
||||
|
||||
*nmsedec = 0;
|
||||
width = jas_matrix_numcols(data);
|
||||
height = jas_matrix_numrows(data);
|
||||
frowstep = jas_matrix_rowstep(flags);
|
||||
drowstep = jas_matrix_rowstep(data);
|
||||
fstripestep = frowstep << 2;
|
||||
dstripestep = drowstep << 2;
|
||||
|
||||
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||||
|
||||
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||||
dstripestart = jas_matrix_getref(data, 0, 0);
|
||||
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||||
dstripestart += dstripestep) {
|
||||
fvscanstart = fstripestart;
|
||||
dvscanstart = dstripestart;
|
||||
vscanlen = JAS_MIN(i, 4);
|
||||
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||||
fp = fvscanstart;
|
||||
dp = dvscanstart;
|
||||
k = vscanlen;
|
||||
|
||||
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
out, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
out, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
out, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||||
out, vcausalflag);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if (term) {
|
||||
jpc_bitstream_outalign(out, 0x2a);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/******************************************************************************\
|
||||
* Code for cleanup pass.
|
||||
\******************************************************************************/
|
||||
|
||||
#define clnpass_step(fp, frowstep, dp, bitpos, one, orient, nmsedec, mqenc, label1, label2, vcausalflag) \
|
||||
{ \
|
||||
int f; \
|
||||
int v; \
|
||||
label1 \
|
||||
f = *(fp); \
|
||||
if (!(f & (JPC_SIG | JPC_VISIT))) { \
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \
|
||||
v = (abs(*(dp)) & (one)) ? 1 : 0; \
|
||||
jpc_mqenc_putbit((mqenc), v); \
|
||||
if (v) { \
|
||||
label2 \
|
||||
f = *(fp); \
|
||||
/* Coefficient is significant. */ \
|
||||
*(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
|
||||
jpc_mqenc_setcurctx((mqenc), JPC_GETSCCTXNO(f)); \
|
||||
v = ((*(dp) < 0) ? 1 : 0); \
|
||||
jpc_mqenc_putbit((mqenc), v ^ JPC_GETSPB(f)); \
|
||||
JPC_UPDATEFLAGS4((fp), (frowstep), v, vcausalflag); \
|
||||
*(fp) |= JPC_SIG; \
|
||||
} \
|
||||
} \
|
||||
*(fp) &= ~JPC_VISIT; \
|
||||
}
|
||||
|
||||
static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag, int segsymflag, jas_matrix_t *flags,
|
||||
jas_matrix_t *data, int term, long *nmsedec)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int k;
|
||||
int vscanlen;
|
||||
int v;
|
||||
int runlen;
|
||||
jpc_fix_t *fp;
|
||||
int width;
|
||||
int height;
|
||||
jpc_fix_t *dp;
|
||||
int one;
|
||||
int frowstep;
|
||||
int drowstep;
|
||||
int fstripestep;
|
||||
int dstripestep;
|
||||
jpc_fix_t *fstripestart;
|
||||
jpc_fix_t *dstripestart;
|
||||
jpc_fix_t *fvscanstart;
|
||||
jpc_fix_t *dvscanstart;
|
||||
|
||||
*nmsedec = 0;
|
||||
width = jas_matrix_numcols(data);
|
||||
height = jas_matrix_numrows(data);
|
||||
frowstep = jas_matrix_rowstep(flags);
|
||||
drowstep = jas_matrix_rowstep(data);
|
||||
fstripestep = frowstep << 2;
|
||||
dstripestep = drowstep << 2;
|
||||
|
||||
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||||
|
||||
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||||
dstripestart = jas_matrix_getref(data, 0, 0);
|
||||
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||||
dstripestart += dstripestep) {
|
||||
fvscanstart = fstripestart;
|
||||
dvscanstart = dstripestart;
|
||||
vscanlen = JAS_MIN(i, 4);
|
||||
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||||
|
||||
fp = fvscanstart;
|
||||
if (vscanlen >= 4 && !((*fp) & (JPC_SIG | JPC_VISIT |
|
||||
JPC_OTHSIGMSK)) && (fp += frowstep, !((*fp) & (JPC_SIG |
|
||||
JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep, !((*fp) &
|
||||
(JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep,
|
||||
!((*fp) & (JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK)))) {
|
||||
dp = dvscanstart;
|
||||
for (k = 0; k < vscanlen; ++k) {
|
||||
v = (abs(*dp) & one) ? 1 : 0;
|
||||
if (v) {
|
||||
break;
|
||||
}
|
||||
dp += drowstep;
|
||||
}
|
||||
runlen = k;
|
||||
if (runlen >= 4) {
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO);
|
||||
jpc_mqenc_putbit(mqenc, 0);
|
||||
continue;
|
||||
}
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO);
|
||||
jpc_mqenc_putbit(mqenc, 1);
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO);
|
||||
jpc_mqenc_putbit(mqenc, runlen >> 1);
|
||||
jpc_mqenc_putbit(mqenc, runlen & 1);
|
||||
fp = fvscanstart + frowstep * runlen;
|
||||
dp = dvscanstart + drowstep * runlen;
|
||||
k = vscanlen - runlen;
|
||||
switch (runlen) {
|
||||
case 0:
|
||||
goto clnpass_partial0;
|
||||
break;
|
||||
case 1:
|
||||
goto clnpass_partial1;
|
||||
break;
|
||||
case 2:
|
||||
goto clnpass_partial2;
|
||||
break;
|
||||
case 3:
|
||||
goto clnpass_partial3;
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
runlen = 0;
|
||||
fp = fvscanstart;
|
||||
dp = dvscanstart;
|
||||
k = vscanlen;
|
||||
goto clnpass_full0;
|
||||
}
|
||||
clnpass_step(fp, frowstep, dp, bitpos, one,
|
||||
orient, nmsedec, mqenc, clnpass_full0:, clnpass_partial0:, vcausalflag);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
clnpass_step(fp, frowstep, dp, bitpos, one,
|
||||
orient, nmsedec, mqenc, ;, clnpass_partial1:, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
clnpass_step(fp, frowstep, dp, bitpos, one,
|
||||
orient, nmsedec, mqenc, ;, clnpass_partial2:, 0);
|
||||
if (--k <= 0) {
|
||||
continue;
|
||||
}
|
||||
fp += frowstep;
|
||||
dp += drowstep;
|
||||
clnpass_step(fp, frowstep, dp, bitpos, one,
|
||||
orient, nmsedec, mqenc, ;, clnpass_partial3:, 0);
|
||||
}
|
||||
}
|
||||
|
||||
if (segsymflag) {
|
||||
jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO);
|
||||
jpc_mqenc_putbit(mqenc, 1);
|
||||
jpc_mqenc_putbit(mqenc, 0);
|
||||
jpc_mqenc_putbit(mqenc, 1);
|
||||
jpc_mqenc_putbit(mqenc, 0);
|
||||
}
|
||||
|
||||
if (term) {
|
||||
jpc_mqenc_flush(mqenc, term - 1);
|
||||
}
|
||||
|
||||
return jpc_mqenc_error(mqenc) ? (-1) : 0;
|
||||
}
|
||||
Reference in New Issue
Block a user