| /* |
| * 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; |
| |
| 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; |
| |
| tile = &tcd_image.tiles[tileno]; |
| |
| 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; |
| } |
