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/*
* Copyright (c) 2001-2002, David Janssens
* Copyright (c) 2003, Yannick Verschueren
* Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* 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 "tcd.h"
#include "int.h"
#include "t2.h"
#include <setjmp.h>
#include <float.h>
#include <stdio.h>
#include <time.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
static tcd_image_t tcd_image;
static j2k_image_t *tcd_img;
static j2k_cp_t *tcd_cp;
static tcd_tile_t *tcd_tile;
static j2k_tcp_t *tcd_tcp;
static int tcd_tileno;
extern jmp_buf j2k_error;
void tcd_init(j2k_image_t *img, j2k_cp_t *cp, info_image_t *imgg) {
int tileno, compno, resno, bandno, precno, cblkno;
tcd_img=img;
tcd_cp=cp;
tcd_image.tw=cp->tw;
tcd_image.th=cp->th;
tcd_image.tiles=(tcd_tile_t*)malloc(cp->tw*cp->th*sizeof(tcd_tile_t));
for (tileno=0; tileno<cp->tw*cp->th; tileno++) {
j2k_tcp_t *tcp=&cp->tcps[tileno];
tcd_tile_t *tile=&tcd_image.tiles[tileno];
// cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000)
int p=tileno%cp->tw; // si numerotation matricielle ..
int q=tileno/cp->tw; // .. coordonnees de la tile (q,p) q pour ligne et p pour colonne
info_tile_t *tile_Idx=&imgg->tile[tileno]; // INDEX
// 4 borders of the tile rescale on the image if necessary
tile->x0=int_max(cp->tx0+p*cp->tdx, img->x0);
tile->y0=int_max(cp->ty0+q*cp->tdy, img->y0);
tile->x1=int_min(cp->tx0+(p+1)*cp->tdx, img->x1);
tile->y1=int_min(cp->ty0+(q+1)*cp->tdy, img->y1);
tile->numcomps=img->numcomps;
tile->comps=(tcd_tilecomp_t*)malloc(img->numcomps*sizeof(tcd_tilecomp_t));
tile_Idx->compo=(info_compo_t*)malloc(img->numcomps*sizeof(info_compo_t)); // INDEX
for (compno=0; compno<tile->numcomps; compno++) {
j2k_tccp_t *tccp=&tcp->tccps[compno];
tcd_tilecomp_t *tilec=&tile->comps[compno];
info_compo_t *compo_Idx=&tile_Idx->compo[compno]; // INDEX
// border of each tile component (global)
tilec->x0=int_ceildiv(tile->x0, img->comps[compno].dx);
tilec->y0=int_ceildiv(tile->y0, img->comps[compno].dy);
tilec->x1=int_ceildiv(tile->x1, img->comps[compno].dx);
tilec->y1=int_ceildiv(tile->y1, img->comps[compno].dy);
tilec->data=(int*)malloc(sizeof(int)*(tilec->x1-tilec->x0)*(tilec->y1-tilec->y0));
tilec->numresolutions=tccp->numresolutions;
tilec->resolutions=(tcd_resolution_t*)malloc(tilec->numresolutions*sizeof(tcd_resolution_t));
compo_Idx->reso=(info_reso_t*)malloc(tilec->numresolutions*sizeof(info_reso_t)); // INDEX
for (resno=0; resno<tilec->numresolutions; resno++) {
int pdx, pdy;
int levelno=tilec->numresolutions-1-resno;
int tlprcxstart, tlprcystart, brprcxend, brprcyend;
int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend;
int cbgwidthexpn, cbgheightexpn;
int cblkwidthexpn, cblkheightexpn;
tcd_resolution_t *res=&tilec->resolutions[resno];
info_reso_t *res_Idx=&compo_Idx->reso[resno]; // INDEX
int precno_Idx; // INDEX
// border for each resolution level (global)
res->x0=int_ceildivpow2(tilec->x0, levelno);
res->y0=int_ceildivpow2(tilec->y0, levelno);
res->x1=int_ceildivpow2(tilec->x1, levelno);
res->y1=int_ceildivpow2(tilec->y1, levelno);
res->numbands=resno==0?1:3;
// p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000)
if (tccp->csty&J2K_CCP_CSTY_PRT) {
pdx=tccp->prcw[resno];
pdy=tccp->prch[resno];
} else {
pdx=15;
pdy=15;
}
// p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000)
tlprcxstart=int_floordivpow2(res->x0, pdx)<<pdx;
tlprcystart=int_floordivpow2(res->y0, pdy)<<pdy;
brprcxend=int_ceildivpow2(res->x1, pdx)<<pdx;
brprcyend=int_ceildivpow2(res->y1, pdy)<<pdy;
res->pw=(brprcxend-tlprcxstart)>>pdx;
res->ph=(brprcyend-tlprcystart)>>pdy;
// <INDEX>
imgg->tile[tileno].pw=res->pw;
imgg->tile[tileno].ph=res->ph;
res_Idx->prec=(info_prec_t*)malloc(res->pw*res->ph*sizeof(info_prec_t));
for (precno_Idx=0;precno_Idx<res->pw*res->ph;precno_Idx++)
{
info_prec_t *prec_Idx = &res_Idx->prec[precno_Idx];
prec_Idx->layer=(info_layer_t*)malloc(imgg->Layer*sizeof(info_layer_t));
}
imgg->pw=res->pw; // old parser version
imgg->ph=res->ph; // old parser version
imgg->pdx=1<<pdx;
imgg->pdy=1<<pdy;
// </INDEX>
if (resno==0) {
tlcbgxstart=tlprcxstart;
tlcbgystart=tlprcystart;
brcbgxend=brprcxend;
brcbgyend=brprcyend;
cbgwidthexpn=pdx;
cbgheightexpn=pdy;
} else {
tlcbgxstart=int_ceildivpow2(tlprcxstart, 1);
tlcbgystart=int_ceildivpow2(tlprcystart, 1);
brcbgxend=int_ceildivpow2(brprcxend, 1);
brcbgyend=int_ceildivpow2(brprcyend, 1);
cbgwidthexpn=pdx-1;
cbgheightexpn=pdy-1;
}
cblkwidthexpn=int_min(tccp->cblkw, cbgwidthexpn);
cblkheightexpn=int_min(tccp->cblkh, cbgheightexpn);
for (bandno=0; bandno<res->numbands; bandno++) {
int x0b, y0b;
tcd_band_t *band=&res->bands[bandno];
band->bandno=resno==0?0:bandno+1;
x0b=(band->bandno==1)||(band->bandno==3)?1:0;
y0b=(band->bandno==2)||(band->bandno==3)?1:0;
if (band->bandno==0) {
// band border (global)
band->x0=int_ceildivpow2(tilec->x0, levelno);
band->y0=int_ceildivpow2(tilec->y0, levelno);
band->x1=int_ceildivpow2(tilec->x1, levelno);
band->y1=int_ceildivpow2(tilec->y1, levelno);
} else {
// band border (global)
band->x0=int_ceildivpow2(tilec->x0-(1<<levelno)*x0b, levelno+1);
band->y0=int_ceildivpow2(tilec->y0-(1<<levelno)*y0b, levelno+1);
band->x1=int_ceildivpow2(tilec->x1-(1<<levelno)*x0b, levelno+1);
band->y1=int_ceildivpow2(tilec->y1-(1<<levelno)*y0b, levelno+1);
}
band->precincts=(tcd_precinct_t*)malloc(res->pw*res->ph*sizeof(tcd_precinct_t));
for (precno=0; precno<res->pw*res->ph; precno++) {
int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend;
int cbgxstart=tlcbgxstart+(precno%res->pw)*(1<<cbgwidthexpn);
int cbgystart=tlcbgystart+(precno/res->pw)*(1<<cbgheightexpn);
int cbgxend=cbgxstart+(1<<cbgwidthexpn);
int cbgyend=cbgystart+(1<<cbgheightexpn);
tcd_precinct_t *prc=&band->precincts[precno];
// precinct size (global)
prc->x0=int_max(cbgxstart, band->x0);
prc->y0=int_max(cbgystart, band->y0);
prc->x1=int_min(cbgxend, band->x1);
prc->y1=int_min(cbgyend, band->y1);
tlcblkxstart=int_floordivpow2(prc->x0, cblkwidthexpn)<<cblkwidthexpn;
tlcblkystart=int_floordivpow2(prc->y0, cblkheightexpn)<<cblkheightexpn;
brcblkxend=int_ceildivpow2(prc->x1, cblkwidthexpn)<<cblkwidthexpn;
brcblkyend=int_ceildivpow2(prc->y1, cblkheightexpn)<<cblkheightexpn;
prc->cw=(brcblkxend-tlcblkxstart)>>cblkwidthexpn;
prc->ch=(brcblkyend-tlcblkystart)>>cblkheightexpn;
prc->cblks=(tcd_cblk_t*)malloc(prc->cw*prc->ch*sizeof(tcd_cblk_t));
prc->incltree=tgt_create(prc->cw, prc->ch);
prc->imsbtree=tgt_create(prc->cw, prc->ch);
for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
int cblkxstart=tlcblkxstart+(cblkno%prc->cw)*(1<<cblkwidthexpn);
int cblkystart=tlcblkystart+(cblkno/prc->cw)*(1<<cblkheightexpn);
int cblkxend=cblkxstart+(1<<cblkwidthexpn);
int cblkyend=cblkystart+(1<<cblkheightexpn);
tcd_cblk_t *cblk=&prc->cblks[cblkno];
// code-block size (global)
cblk->x0=int_max(cblkxstart, prc->x0);
cblk->y0=int_max(cblkystart, prc->y0);
cblk->x1=int_min(cblkxend, prc->x1);
cblk->y1=int_min(cblkyend, prc->y1);
}
}
}
}
}
}
}
void tcd_free(j2k_image_t *img, j2k_cp_t *cp) {
int tileno, compno, resno, bandno, precno;
tcd_img=img;
tcd_cp=cp;
tcd_image.tw=cp->tw;
tcd_image.th=cp->th;
for (tileno=0; tileno<tcd_image.tw*tcd_image.th; tileno++)
{
// j2k_tcp_t *tcp=&cp->tcps[curtileno];
tcd_tile_t *tile=&tcd_image.tiles[tileno];
for (compno=0; compno<tile->numcomps; compno++)
{
tcd_tilecomp_t *tilec=&tile->comps[compno];
for (resno=0; resno<tilec->numresolutions; resno++)
{
tcd_resolution_t *res=&tilec->resolutions[resno];
for (bandno=0; bandno<res->numbands; bandno++)
{
tcd_band_t *band=&res->bands[bandno];
for (precno=0; precno<res->pw*res->ph; precno++)
{
tcd_precinct_t *prc=&band->precincts[precno];
if (prc->incltree!=NULL)
tgt_destroy(prc->incltree);
if (prc->imsbtree!=NULL)
tgt_destroy(prc->imsbtree);
free(prc->cblks);
} // for (precno
free(band->precincts);
} // for (bandno
} // for (resno
free(tilec->resolutions);
} // for (compno
free(tile->comps);
} // for (tileno
free(tcd_image.tiles);
}
int tcd_decode_tile(unsigned char *src, int len, int tileno, info_image_t *imgg) {
int l;
int eof=0;
tcd_tile_t *tile;
tcd_tileno=tileno;
tcd_tile=&tcd_image.tiles[tileno];
tcd_tcp=&tcd_cp->tcps[tileno];
tile=tcd_tile;
l=t2_decode_packets(src, len, tcd_img, tcd_cp, tileno, tile, imgg);
if (l==-999)
{
eof=1;
fprintf(stderr, "tcd_decode: incomplete bistream\n");
}
if (eof) {
longjmp(j2k_error, 1);
}
l=1;
return l;
}
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