-/*
- * Copyright (c) 2001-2002, David Janssens
- * Copyright (c) 2002-2004, Yannick Verschueren
- * Copyright (c) 2002-2004, 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 "t2.h"
-#include "tcd.h"
-#include "bio.h"
-#include "j2k.h"
-#include "pi.h"
-#include "tgt.h"
-#include "int.h"
-#include "cio.h"
-#include <stdio.h>
-#include <setjmp.h>
-#include <string.h>
-#include <stdlib.h>
-
-#define RESTART 0x04
-
-extern jmp_buf j2k_error;
-
-void t2_putcommacode(int n)
-{
- while (--n >= 0) {
- bio_write(1, 1);
- }
- bio_write(0, 1);
-}
-
-int t2_getcommacode()
-{
- int n;
- for (n = 0; bio_read(1); n++) {
- }
- return n;
-}
-
-/* <summary> */
-/* Variable length code for signalling delta Zil (truncation point) */
-/* <val> n : delta Zil */
-/* <\summary> */
-void t2_putnumpasses(int n)
-{
- if (n == 1) {
- bio_write(0, 1);
- } else if (n == 2) {
- bio_write(2, 2);
- } else if (n <= 5) {
- bio_write(0xc | (n - 3), 4);
- } else if (n <= 36) {
- bio_write(0x1e0 | (n - 6), 9);
- } else if (n <= 164) {
- bio_write(0xff80 | (n - 37), 16);
- }
-}
-
-int t2_getnumpasses()
-{
- int n;
- if (!bio_read(1))
- return 1;
- if (!bio_read(1))
- return 2;
- if ((n = bio_read(2)) != 3)
- return 3 + n;
- if ((n = bio_read(5)) != 31)
- return 6 + n;
- return 37 + bio_read(7);
-}
-
-/*
- * Encode a packet of a tile to a destination buffer
- *
- * Tile : the tile for which to write the packets
- * tcp : the tile coding parameters
- * compno : Identity of the packet --> component value
- * resno : Identity of the packet --> resolution level value
- * precno : Identity of the packet --> precinct value
- * layno : Identity of the packet --> quality layer value
- * dest : the destination buffer
- * len : the length of the destination buffer
- * info_IM : structure to create an index file
- * tileno : number of the tile encoded
-*/
-int t2_encode_packet(tcd_tile_t * tile, j2k_tcp_t * tcp, int compno,
- int resno, int precno, int layno, unsigned char *dest,
- int len, info_image * info_IM, int tileno)
-{
- int bandno, cblkno;
- unsigned char *sop = 0, *eph = 0;
- tcd_tilecomp_t *tilec = &tile->comps[compno];
- tcd_resolution_t *res = &tilec->resolutions[resno];
- unsigned char *c = dest;
-
- /* <SOP 0xff91> */
- if (tcp->csty & J2K_CP_CSTY_SOP) {
- sop = (unsigned char *) malloc(6 * sizeof(unsigned char));
- sop[0] = 255;
- sop[1] = 145;
- sop[2] = 0;
- sop[3] = 4;
- sop[4] = (info_IM->num % 65536) / 256;
- sop[5] = (info_IM->num % 65536) % 256;
- memcpy(c, sop, 6);
- free(sop);
- c += 6;
- }
- /* </SOP> */
-
- if (!layno) {
- for (bandno = 0; bandno < res->numbands; bandno++) {
- tcd_band_t *band = &res->bands[bandno];
- tcd_precinct_t *prc = &band->precincts[precno];
- tgt_reset(prc->incltree);
- tgt_reset(prc->imsbtree);
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- cblk->numpasses = 0;
- tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);
- }
- }
- }
-
- bio_init_enc(c, len);
- bio_write(1, 1); /* Empty header bit */
-
- /* Writing Packet header */
- for (bandno = 0; bandno < res->numbands; bandno++) {
- tcd_band_t *band = &res->bands[bandno];
- tcd_precinct_t *prc = &band->precincts[precno];
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- tcd_layer_t *layer = &cblk->layers[layno];
- if (!cblk->numpasses && layer->numpasses) {
- tgt_setvalue(prc->incltree, cblkno, layno);
- }
- }
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- tcd_layer_t *layer = &cblk->layers[layno];
- int increment = 0;
- int nump = 0;
- int len = 0, passno;
- /* cblk inclusion bits */
- if (!cblk->numpasses) {
- tgt_encode(prc->incltree, cblkno, layno + 1);
- } else {
- bio_write(layer->numpasses != 0, 1);
- }
- /* if cblk not included, go to the next cblk */
- if (!layer->numpasses) {
- continue;
- }
- /* if first instance of cblk --> zero bit-planes information */
- if (!cblk->numpasses) {
- cblk->numlenbits = 3;
- tgt_encode(prc->imsbtree, cblkno, 999);
- }
- /* number of coding passes included */
- t2_putnumpasses(layer->numpasses);
-
- /* computation of the increase of the length indicator and insertion in the header */
- for (passno = cblk->numpasses;
- passno < cblk->numpasses + layer->numpasses; passno++) {
- tcd_pass_t *pass = &cblk->passes[passno];
- nump++;
- len += pass->len;
- if (pass->term
- || passno == (cblk->numpasses + layer->numpasses) - 1) {
- increment =
- int_max(increment,
- int_floorlog2(len) + 1 -
- (cblk->numlenbits + int_floorlog2(nump)));
- len = 0;
- nump = 0;
- }
- }
- t2_putcommacode(increment);
- /* computation of the new Length indicator */
- cblk->numlenbits += increment;
- /* insertion of the codeword segment length */
-
- for (passno = cblk->numpasses;
- passno < cblk->numpasses + layer->numpasses; passno++) {
- tcd_pass_t *pass = &cblk->passes[passno];
- nump++;
- len += pass->len;
- if (pass->term
- || passno == (cblk->numpasses + layer->numpasses) - 1) {
- bio_write(len, cblk->numlenbits + int_floorlog2(nump));
- len = 0;
- nump = 0;
- }
- }
- }
- }
-
- if (bio_flush())
- return -999; /* modified to eliminate longjmp !! */
-
- c += bio_numbytes();
-
- /* <EPH 0xff92> */
- if (tcp->csty & J2K_CP_CSTY_EPH) {
- eph = (unsigned char *) malloc(2 * sizeof(unsigned char));
- eph[0] = 255;
- eph[1] = 146;
- memcpy(c, eph, 2);
- free(eph);
- c += 2;
- }
- /* </EPH> */
-
- /* Writing the packet body */
-
- for (bandno = 0; bandno < res->numbands; bandno++) {
- tcd_band_t *band = &res->bands[bandno];
- tcd_precinct_t *prc = &band->precincts[precno];
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- tcd_layer_t *layer = &cblk->layers[layno];
- if (!layer->numpasses) {
- continue;
- }
- if (c + layer->len > dest + len) {
- return -999;
- }
-
- memcpy(c, layer->data, layer->len);
- cblk->numpasses += layer->numpasses;
- c += layer->len;
- /* ADD for index Cfr. Marcela --> delta disto by packet */
- if (info_IM->index_write && info_IM->index_on) {
- info_tile *info_TL = &info_IM->tile[tileno];
- info_packet *info_PK = &info_TL->packet[info_IM->num];
- info_PK->disto += layer->disto;
- if (info_IM->D_max < info_PK->disto)
- info_IM->D_max = info_PK->disto;
- } /* </ADD> */
- }
- }
- return c - dest;
-}
-
-void t2_init_seg(tcd_seg_t * seg, int cblksty, int first)
-{
- seg->numpasses = 0;
- seg->len = 0;
- if (cblksty & J2K_CCP_CBLKSTY_TERMALL)
- seg->maxpasses = 1;
- else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
- if (first)
- seg->maxpasses = 10;
- else
- seg->maxpasses = (((seg - 1)->maxpasses == 1)
- || ((seg - 1)->maxpasses == 10)) ? 2 : 1;
- } else
- seg->maxpasses = 109;
-}
-
-/*
- * Decode a packet of a tile from a source buffer
- *
- * src : the source buffer
- * len : the length of the source buffer
- * tile : the tile for which to write the packets
- * cp : the image coding parameters
- * tcp : the tile coding parameters
- * compno : Identity of the packet --> component value
- * resno : Identity of the packet --> resolution level value
- * precno : Identity of the packet --> precinct value
- * layno : Identity of the packet --> quality layer value
- */
-int t2_decode_packet(unsigned char *src, int len, tcd_tile_t * tile,
- j2k_cp_t * cp, j2k_tcp_t * tcp, int compno, int resno,
- int precno, int layno)
-{
- int bandno, cblkno;
- tcd_tilecomp_t *tilec = &tile->comps[compno];
- tcd_resolution_t *res = &tilec->resolutions[resno];
- unsigned char *c = src;
-
- unsigned char *hd = NULL;
- int present;
-
- if (layno == 0) {
- for (bandno = 0; bandno < res->numbands; bandno++) {
- tcd_band_t *band = &res->bands[bandno];
- tcd_precinct_t *prc = &band->precincts[precno];
-
-
-
- /*Add Antonin : sizebug1*/
-
- if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
-
- /*ddA*/
-
-
- tgt_reset(prc->incltree);
- tgt_reset(prc->imsbtree);
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- cblk->numsegs = 0;
- }
- }
- }
-
-
-
- /* SOP markers*/
-
- if (tcp->csty & J2K_CP_CSTY_SOP) {
-
- if ((*c) != 0xff || (*(c + 1) != 0x91)) {
-
- fprintf(stderr,"Warning : expected SOP marker\n");
-
- } else {
-
- c += 6;
-
- }
-
- /*TODO : check the Nsop value*/
-
- }
-
- /* When the marker PPT/PPM is used the packet header are store in PPT/PPM marker
- This part deal with this caracteristic
- step 1: Read packet header in the saved structure
- step 2: Return to codestream for decoding */
-
-
- if (cp->ppm == 1) { /* PPM */
- hd = cp->ppm_data;
- bio_init_dec(hd, cp->ppm_len); /*Mod Antonin : ppmbug1*/
- } else if (tcp->ppt == 1) { /* PPT */
- hd = tcp->ppt_data;
- bio_init_dec(hd, tcp->ppt_len); /*Mod Antonin : ppmbug1*/
- } else { /* Normal Case */
-
- hd = c;
-
- bio_init_dec(hd, src+len-hd);
-
- }
-
- present = bio_read(1);
-
- if (!present) {
- bio_inalign();
-
- hd += bio_numbytes();
-
-
-
- /* EPH markers*/
-
- if (tcp->csty & J2K_CP_CSTY_EPH) {
-
- if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
-
- printf("Error : expected EPH marker\n");
-
- } else {
-
- hd += 2;
-
- }
-
- }
-
- if (cp->ppm == 1) { /* PPM case */
-
- cp->ppm_len+=cp->ppm_data-hd;
- cp->ppm_data = hd;
- return c - src;
- }
- if (tcp->ppt == 1) { /* PPT case */
-
- tcp->ppt_len+=tcp->ppt_data-hd;
- tcp->ppt_data = hd;
- return c - src;
- }
-
-
- return hd - src;
- }
-
-
- for (bandno = 0; bandno < res->numbands; bandno++) {
- tcd_band_t *band = &res->bands[bandno];
- tcd_precinct_t *prc = &band->precincts[precno];
-
-
-
- /*Add Antonin : sizebug1*/
-
- if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
-
- /*ddA*/
-
-
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- int included, increment, n;
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- tcd_seg_t *seg;
- /* if cblk not yet included before --> inclusion tagtree */
- if (!cblk->numsegs) {
- included = tgt_decode(prc->incltree, cblkno, layno + 1);
- /* else one bit */
- } else {
- included = bio_read(1);
- }
- /* if cblk not included */
- if (!included) {
- cblk->numnewpasses = 0;
- continue;
- }
- /* if cblk not yet included --> zero-bitplane tagtree */
- if (!cblk->numsegs) {
- int i, numimsbs;
- for (i = 0; !tgt_decode(prc->imsbtree, cblkno, i); i++) {
- }
- numimsbs = i - 1;
- cblk->numbps = band->numbps - numimsbs;
- cblk->numlenbits = 3;
- }
- /* number of coding passes */
- cblk->numnewpasses = t2_getnumpasses();
- increment = t2_getcommacode();
- /* length indicator increment */
- cblk->numlenbits += increment;
- if (!cblk->numsegs) {
- seg = &cblk->segs[0];
- t2_init_seg(seg, tcp->tccps[compno].cblksty, 1);
- } else {
- seg = &cblk->segs[cblk->numsegs - 1];
- if (seg->numpasses == seg->maxpasses) {
- t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);
- }
- }
- n = cblk->numnewpasses;
-
- do {
- seg->numnewpasses = int_min(seg->maxpasses - seg->numpasses, n);
- seg->newlen =
- bio_read(cblk->numlenbits + int_floorlog2(seg->numnewpasses));
- n -= seg->numnewpasses;
- if (n > 0) {
- t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);
- }
- } while (n > 0);
- }
- }
- if (bio_inalign())
- return -999;
-
- hd += bio_numbytes();
-
-
- /* EPH markers*/
- if (tcp->csty & J2K_CP_CSTY_EPH) {
- if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
- fprintf(stderr,"Error : expected EPH marker\n");
- } else {
- hd += 2;
-
- }
- }
-
-
-
- if (cp->ppm==1) {
-
- cp->ppm_len+=cp->ppm_data-hd;
-
- cp->ppm_data = hd;
-
- } else if (tcp->ppt == 1) {
-
- tcp->ppt_len+=tcp->ppt_data-hd;
-
- tcp->ppt_data = hd;
-
- } else {
-
- c=hd;
-
- }
-
- for (bandno = 0; bandno < res->numbands; bandno++) {
- tcd_band_t *band = &res->bands[bandno];
- tcd_precinct_t *prc = &band->precincts[precno];
-
-
-
- /*Add Antonin : sizebug1*/
-
- if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
-
- /*ddA*/
-
-
- for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
- tcd_cblk_t *cblk = &prc->cblks[cblkno];
- tcd_seg_t *seg;
- if (!cblk->numnewpasses)
- continue;
- if (!cblk->numsegs) {
- seg = &cblk->segs[0];
-
- cblk->numsegs++;
- cblk->len = 0;
- } else {
- seg = &cblk->segs[cblk->numsegs - 1];
- if (seg->numpasses == seg->maxpasses) {
- seg++;
- cblk->numsegs++;
- }
- }
- do {
- if (c + seg->newlen > src + len) {
- return -999;
- }
-
- memcpy(cblk->data + cblk->len, c, seg->newlen);
- if (seg->numpasses == 0) {
- seg->data = cblk->data + cblk->len;
- }
- c += seg->newlen;
- cblk->len += seg->newlen;
- seg->len += seg->newlen;
- seg->numpasses += seg->numnewpasses;
- cblk->numnewpasses -= seg->numnewpasses;
- if (cblk->numnewpasses > 0) {
- seg++;
- cblk->numsegs++;
- }
- } while (cblk->numnewpasses > 0);
- }
- }
-
- return c - src;
-}
-
-
-
-/*
- * Encode the packets of a tile to a destination buffer
- *
- * img : the source image
- * cp : the image coding parameters
- * tileno : number of the tile encoded
- * tile : the tile for which to write the packets
- * maxlayers : maximum number of layers
- * dest : the destination buffer
- * len : the length of the destination buffer
- * info_IM : structure to create an index file
- */
-int t2_encode_packets(j2k_image_t * img, j2k_cp_t * cp, int tileno,
- tcd_tile_t * tile, int maxlayers,
- unsigned char *dest, int len, info_image * info_IM)
-{
- unsigned char *c = dest;
- int e = 0;
- pi_iterator_t *pi;
- int pino, compno;
-
- pi = pi_create(img, cp, tileno);
-
- for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
- while (pi_next(&pi[pino])) {
- if (pi[pino].layno < maxlayers) {
- e = t2_encode_packet(tile, &cp->tcps[tileno],
- pi[pino].compno, pi[pino].resno,
- pi[pino].precno, pi[pino].layno, c,
- dest + len - c, info_IM, tileno);
- if (e == -999) {
- break;
- } else
- c += e;
- /* INDEX >> */
- if (info_IM->index_write && info_IM->index_on) {
- info_tile *info_TL = &info_IM->tile[tileno];
- info_packet *info_PK = &info_TL->packet[info_IM->num];
- if (!info_IM->num) {
- info_PK->start_pos = info_TL->end_header + 1;
- } else {
- info_PK->start_pos =
- info_TL->packet[info_IM->num - 1].end_pos + 1;
- }
- info_PK->end_pos = info_PK->start_pos + e - 1;
-
- }
- /* << INDEX */
- if ((info_IM->index_write
- && cp->tcps[tileno].csty & J2K_CP_CSTY_SOP)
- || (info_IM->index_write && info_IM->index_on)) {
- info_IM->num++;
- }
- }
-
- }
-
- /* FREE space memory taken by pi */
- for (compno = 0; compno < pi[pino].numcomps; compno++) {
- free(pi[pino].comps[compno].resolutions);
- }
- free(pi[pino].comps);
- }
- free(pi[0].include);
- free(pi);
- if (e == -999)
- return e;
- else
- return c - dest;
-}
-
-
-
-/*
- * Decode the packets of a tile from a source buffer
- *
- * src: the source buffer
- * len: length of the source buffer
- * img: destination image
- * cp: image coding parameters
- * tileno: number that identifies the tile for which to decode the packets
- * tile: tile for which to decode the packets
- */
-int t2_decode_packets(unsigned char *src, int len, j2k_image_t * img,
- j2k_cp_t * cp, int tileno, tcd_tile_t * tile)
-{
- unsigned char *c = src;
- pi_iterator_t *pi;
- int pino, compno, e = 0;
- int n = 0;
-
- pi = pi_create(img, cp, tileno);
-
- for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
- while (pi_next(&pi[pino])) {
-
- if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
- e = t2_decode_packet(c, src + len - c, tile, cp,
- &cp->tcps[tileno], pi[pino].compno,
- pi[pino].resno, pi[pino].precno,
- pi[pino].layno);
- } else {
- e = 0;
- }
-
- /* progression in resolution */
- img->comps[pi[pino].compno].resno_decoded =
- e > 0 ? int_max(pi[pino].resno,
- img->comps[pi[pino].compno].
- resno_decoded) : img->comps[pi[pino].
- compno].resno_decoded;
- n++;
-
- if (e == -999) { /* ADD */
- break;
- } else {
- c += e;
- }
- }
-
- /* FREE space memory taken by pi */
- for (compno = 0; compno < pi[pino].numcomps; compno++) {
- free(pi[pino].comps[compno].resolutions);
- }
- free(pi[pino].comps);
- }
- free(pi[0].include);
- free(pi);
-
- if (e == -999)
- return e;
- else
- return c - src;
-}
+/*\r
+ * Copyright (c) 2001-2003, David Janssens\r
+ * Copyright (c) 2002-2003, Yannick Verschueren\r
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe\r
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team\r
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ * notice, this list of conditions and the following disclaimer in the\r
+ * documentation and/or other materials provided with the distribution.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
+ * POSSIBILITY OF SUCH DAMAGE.\r
+ */\r
+\r
+#include "opj_includes.h"\r
+\r
+/** @defgroup T2 T2 - Implementation of a tier-2 coding */\r
+/*@{*/\r
+\r
+/** @name Local static functions */\r
+/*@{*/\r
+\r
+static void t2_putcommacode(opj_bio_t *bio, int n);\r
+static int t2_getcommacode(opj_bio_t *bio);\r
+/**\r
+Variable length code for signalling delta Zil (truncation point)\r
+@param bio Bit Input/Output component\r
+@param n delta Zil\r
+*/\r
+static void t2_putnumpasses(opj_bio_t *bio, int n);\r
+static int t2_getnumpasses(opj_bio_t *bio);\r
+/**\r
+Encode a packet of a tile to a destination buffer\r
+@param tile Tile for which to write the packets\r
+@param tcp Tile coding parameters\r
+@param pi Packet identity\r
+@param dest Destination buffer\r
+@param len Length of the destination buffer\r
+@param image_info Structure to create an index file\r
+@param tileno Number of the tile encoded\r
+@return \r
+*/\r
+static int t2_encode_packet(opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi, unsigned char *dest, int len, opj_image_info_t *image_info, int tileno);\r
+/**\r
+@param seg\r
+@param cblksty\r
+@param first\r
+*/\r
+static void t2_init_seg(opj_tcd_seg_t *seg, int cblksty, int first);\r
+/**\r
+Decode a packet of a tile from a source buffer\r
+@param t2 T2 handle\r
+@param src Source buffer\r
+@param len Length of the source buffer\r
+@param tile Tile for which to write the packets\r
+@param tcp Tile coding parameters\r
+@param pi Packet identity\r
+@return \r
+*/\r
+int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi);\r
+\r
+/*@}*/\r
+\r
+/*@}*/\r
+\r
+/* ----------------------------------------------------------------------- */\r
+\r
+/* #define RESTART 0x04 */\r
+\r
+static void t2_putcommacode(opj_bio_t *bio, int n) {\r
+ while (--n >= 0) {\r
+ bio_write(bio, 1, 1);\r
+ }\r
+ bio_write(bio, 0, 1);\r
+}\r
+\r
+static int t2_getcommacode(opj_bio_t *bio) {\r
+ int n;\r
+ for (n = 0; bio_read(bio, 1); n++) {\r
+ ;\r
+ }\r
+ return n;\r
+}\r
+\r
+static void t2_putnumpasses(opj_bio_t *bio, int n) {\r
+ if (n == 1) {\r
+ bio_write(bio, 0, 1);\r
+ } else if (n == 2) {\r
+ bio_write(bio, 2, 2);\r
+ } else if (n <= 5) {\r
+ bio_write(bio, 0xc | (n - 3), 4);\r
+ } else if (n <= 36) {\r
+ bio_write(bio, 0x1e0 | (n - 6), 9);\r
+ } else if (n <= 164) {\r
+ bio_write(bio, 0xff80 | (n - 37), 16);\r
+ }\r
+}\r
+\r
+static int t2_getnumpasses(opj_bio_t *bio) {\r
+ int n;\r
+ if (!bio_read(bio, 1))\r
+ return 1;\r
+ if (!bio_read(bio, 1))\r
+ return 2;\r
+ if ((n = bio_read(bio, 2)) != 3)\r
+ return (3 + n);\r
+ if ((n = bio_read(bio, 5)) != 31)\r
+ return (6 + n);\r
+ return (37 + bio_read(bio, 7));\r
+}\r
+\r
+static int t2_encode_packet(opj_tcd_tile_t * tile, opj_tcp_t * tcp, opj_pi_iterator_t *pi, unsigned char *dest, int len, opj_image_info_t * image_info, int tileno) {\r
+ int bandno, cblkno;\r
+ unsigned char *sop = 0, *eph = 0;\r
+ unsigned char *c = dest;\r
+\r
+ int compno = pi->compno; /* component value */\r
+ int resno = pi->resno; /* resolution level value */\r
+ int precno = pi->precno; /* precinct value */\r
+ int layno = pi->layno; /* quality layer value */\r
+\r
+ opj_tcd_tilecomp_t *tilec = &tile->comps[compno];\r
+ opj_tcd_resolution_t *res = &tilec->resolutions[resno];\r
+ \r
+ opj_bio_t *bio = NULL; /* BIO component */\r
+ \r
+ /* <SOP 0xff91> */\r
+ if (tcp->csty & J2K_CP_CSTY_SOP) {\r
+ sop = (unsigned char *) opj_malloc(6 * sizeof(unsigned char));\r
+ sop[0] = 255;\r
+ sop[1] = 145;\r
+ sop[2] = 0;\r
+ sop[3] = 4;\r
+ sop[4] = (image_info->num % 65536) / 256;\r
+ sop[5] = (image_info->num % 65536) % 256;\r
+ memcpy(c, sop, 6);\r
+ opj_free(sop);\r
+ c += 6;\r
+ }\r
+ /* </SOP> */\r
+ \r
+ if (!layno) {\r
+ for (bandno = 0; bandno < res->numbands; bandno++) {\r
+ opj_tcd_band_t *band = &res->bands[bandno];\r
+ opj_tcd_precinct_t *prc = &band->precincts[precno];\r
+ tgt_reset(prc->incltree);\r
+ tgt_reset(prc->imsbtree);\r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ cblk->numpasses = 0;\r
+ tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);\r
+ }\r
+ }\r
+ }\r
+ \r
+ bio = bio_create();\r
+ bio_init_enc(bio, c, len);\r
+ bio_write(bio, 1, 1); /* Empty header bit */\r
+ \r
+ /* Writing Packet header */\r
+ for (bandno = 0; bandno < res->numbands; bandno++) {\r
+ opj_tcd_band_t *band = &res->bands[bandno];\r
+ opj_tcd_precinct_t *prc = &band->precincts[precno];\r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ opj_tcd_layer_t *layer = &cblk->layers[layno];\r
+ if (!cblk->numpasses && layer->numpasses) {\r
+ tgt_setvalue(prc->incltree, cblkno, layno);\r
+ }\r
+ }\r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ opj_tcd_layer_t *layer = &cblk->layers[layno];\r
+ int increment = 0;\r
+ int nump = 0;\r
+ int len = 0, passno;\r
+ /* cblk inclusion bits */\r
+ if (!cblk->numpasses) {\r
+ tgt_encode(bio, prc->incltree, cblkno, layno + 1);\r
+ } else {\r
+ bio_write(bio, layer->numpasses != 0, 1);\r
+ }\r
+ /* if cblk not included, go to the next cblk */\r
+ if (!layer->numpasses) {\r
+ continue;\r
+ }\r
+ /* if first instance of cblk --> zero bit-planes information */\r
+ if (!cblk->numpasses) {\r
+ cblk->numlenbits = 3;\r
+ tgt_encode(bio, prc->imsbtree, cblkno, 999);\r
+ }\r
+ /* number of coding passes included */\r
+ t2_putnumpasses(bio, layer->numpasses);\r
+ \r
+ /* computation of the increase of the length indicator and insertion in the header */\r
+ for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {\r
+ opj_tcd_pass_t *pass = &cblk->passes[passno];\r
+ nump++;\r
+ len += pass->len;\r
+ if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {\r
+ increment = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));\r
+ len = 0;\r
+ nump = 0;\r
+ }\r
+ }\r
+ t2_putcommacode(bio, increment);\r
+\r
+ /* computation of the new Length indicator */\r
+ cblk->numlenbits += increment;\r
+\r
+ /* insertion of the codeword segment length */\r
+ for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {\r
+ opj_tcd_pass_t *pass = &cblk->passes[passno];\r
+ nump++;\r
+ len += pass->len;\r
+ if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {\r
+ bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));\r
+ len = 0;\r
+ nump = 0;\r
+ }\r
+ }\r
+ }\r
+ }\r
+ \r
+ if (bio_flush(bio)) {\r
+ return -999; /* modified to eliminate longjmp !! */\r
+ }\r
+ \r
+ c += bio_numbytes(bio);\r
+\r
+ bio_destroy(bio);\r
+ \r
+ /* <EPH 0xff92> */\r
+ if (tcp->csty & J2K_CP_CSTY_EPH) {\r
+ eph = (unsigned char *) opj_malloc(2 * sizeof(unsigned char));\r
+ eph[0] = 255;\r
+ eph[1] = 146;\r
+ memcpy(c, eph, 2);\r
+ opj_free(eph);\r
+ c += 2;\r
+ }\r
+ /* </EPH> */\r
+ \r
+ /* Writing the packet body */\r
+ \r
+ for (bandno = 0; bandno < res->numbands; bandno++) {\r
+ opj_tcd_band_t *band = &res->bands[bandno];\r
+ opj_tcd_precinct_t *prc = &band->precincts[precno];\r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ opj_tcd_layer_t *layer = &cblk->layers[layno];\r
+ if (!layer->numpasses) {\r
+ continue;\r
+ }\r
+ if (c + layer->len > dest + len) {\r
+ return -999;\r
+ }\r
+ \r
+ memcpy(c, layer->data, layer->len);\r
+ cblk->numpasses += layer->numpasses;\r
+ c += layer->len;\r
+ /* ADD for index Cfr. Marcela --> delta disto by packet */\r
+ if(image_info && image_info->index_write && image_info->index_on) {\r
+ opj_tile_info_t *info_TL = &image_info->tile[tileno];\r
+ opj_packet_info_t *info_PK = &info_TL->packet[image_info->num];\r
+ info_PK->disto += layer->disto;\r
+ if (image_info->D_max < info_PK->disto) {\r
+ image_info->D_max = info_PK->disto;\r
+ }\r
+ }\r
+ /* </ADD> */\r
+ }\r
+ }\r
+ \r
+ return (c - dest);\r
+}\r
+\r
+static void t2_init_seg(opj_tcd_seg_t * seg, int cblksty, int first) {\r
+ seg->numpasses = 0;\r
+ seg->len = 0;\r
+ if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {\r
+ seg->maxpasses = 1;\r
+ }\r
+ else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {\r
+ if (first) {\r
+ seg->maxpasses = 10;\r
+ } else {\r
+ seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1;\r
+ }\r
+ } else {\r
+ seg->maxpasses = 109;\r
+ }\r
+}\r
+\r
+int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi) {\r
+ int bandno, cblkno;\r
+ unsigned char *c = src;\r
+\r
+ opj_cp_t *cp = t2->cp;\r
+\r
+ int compno = pi->compno; /* component value */\r
+ int resno = pi->resno; /* resolution level value */\r
+ int precno = pi->precno; /* precinct value */\r
+ int layno = pi->layno; /* quality layer value */\r
+\r
+ opj_tcd_tilecomp_t *tilec = &tile->comps[compno];\r
+ opj_tcd_resolution_t *res = &tilec->resolutions[resno];\r
+ \r
+ unsigned char *hd = NULL;\r
+ int present;\r
+ \r
+ opj_bio_t *bio = NULL; /* BIO component */\r
+ \r
+ if (layno == 0) {\r
+ for (bandno = 0; bandno < res->numbands; bandno++) {\r
+ opj_tcd_band_t *band = &res->bands[bandno];\r
+ opj_tcd_precinct_t *prc = &band->precincts[precno];\r
+ \r
+ if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;\r
+ \r
+ tgt_reset(prc->incltree);\r
+ tgt_reset(prc->imsbtree);\r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ cblk->numsegs = 0;\r
+ }\r
+ }\r
+ }\r
+ \r
+ /* SOP markers */\r
+ \r
+ if (tcp->csty & J2K_CP_CSTY_SOP) {\r
+ if ((*c) != 0xff || (*(c + 1) != 0x91)) {\r
+ opj_event_msg(t2->cinfo, EVT_WARNING, "Expected SOP marker\n");\r
+ } else {\r
+ c += 6;\r
+ }\r
+ \r
+ /** TODO : check the Nsop value */\r
+ }\r
+ \r
+ /* \r
+ When the marker PPT/PPM is used the packet header are store in PPT/PPM marker\r
+ This part deal with this caracteristic\r
+ step 1: Read packet header in the saved structure\r
+ step 2: Return to codestream for decoding \r
+ */\r
+\r
+ bio = bio_create();\r
+ \r
+ if (cp->ppm == 1) { /* PPM */\r
+ hd = cp->ppm_data;\r
+ bio_init_dec(bio, hd, cp->ppm_len);\r
+ } else if (tcp->ppt == 1) { /* PPT */\r
+ hd = tcp->ppt_data;\r
+ bio_init_dec(bio, hd, tcp->ppt_len);\r
+ } else { /* Normal Case */\r
+ hd = c;\r
+ bio_init_dec(bio, hd, src+len-hd);\r
+ }\r
+ \r
+ present = bio_read(bio, 1);\r
+ \r
+ if (!present) {\r
+ bio_inalign(bio);\r
+ hd += bio_numbytes(bio);\r
+ bio_destroy(bio);\r
+ \r
+ /* EPH markers */\r
+ \r
+ if (tcp->csty & J2K_CP_CSTY_EPH) {\r
+ if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {\r
+ printf("Error : expected EPH marker\n");\r
+ } else {\r
+ hd += 2;\r
+ }\r
+ }\r
+ \r
+ if (cp->ppm == 1) { /* PPM case */\r
+ cp->ppm_len += cp->ppm_data-hd;\r
+ cp->ppm_data = hd;\r
+ return (c - src);\r
+ }\r
+ if (tcp->ppt == 1) { /* PPT case */\r
+ tcp->ppt_len+=tcp->ppt_data-hd;\r
+ tcp->ppt_data = hd;\r
+ return (c - src);\r
+ }\r
+ \r
+ return (hd - src);\r
+ }\r
+ \r
+ for (bandno = 0; bandno < res->numbands; bandno++) {\r
+ opj_tcd_band_t *band = &res->bands[bandno];\r
+ opj_tcd_precinct_t *prc = &band->precincts[precno];\r
+ \r
+ if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;\r
+ \r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ int included, increment, n;\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ opj_tcd_seg_t *seg = NULL;\r
+ /* if cblk not yet included before --> inclusion tagtree */\r
+ if (!cblk->numsegs) {\r
+ included = tgt_decode(bio, prc->incltree, cblkno, layno + 1);\r
+ /* else one bit */\r
+ } else {\r
+ included = bio_read(bio, 1);\r
+ }\r
+ /* if cblk not included */\r
+ if (!included) {\r
+ cblk->numnewpasses = 0;\r
+ continue;\r
+ }\r
+ /* if cblk not yet included --> zero-bitplane tagtree */\r
+ if (!cblk->numsegs) {\r
+ int i, numimsbs;\r
+ for (i = 0; !tgt_decode(bio, prc->imsbtree, cblkno, i); i++) {\r
+ ;\r
+ }\r
+ numimsbs = i - 1;\r
+ cblk->numbps = band->numbps - numimsbs;\r
+ cblk->numlenbits = 3;\r
+ }\r
+ /* number of coding passes */\r
+ cblk->numnewpasses = t2_getnumpasses(bio);\r
+ increment = t2_getcommacode(bio);\r
+ /* length indicator increment */\r
+ cblk->numlenbits += increment;\r
+ if (!cblk->numsegs) {\r
+ seg = &cblk->segs[0];\r
+ t2_init_seg(seg, tcp->tccps[compno].cblksty, 1);\r
+ } else {\r
+ seg = &cblk->segs[cblk->numsegs - 1];\r
+ if (seg->numpasses == seg->maxpasses) {\r
+ t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);\r
+ }\r
+ }\r
+ n = cblk->numnewpasses;\r
+ \r
+ do {\r
+ seg->numnewpasses = int_min(seg->maxpasses - seg->numpasses, n);\r
+ seg->newlen = bio_read(bio, cblk->numlenbits + int_floorlog2(seg->numnewpasses));\r
+ n -= seg->numnewpasses;\r
+ if (n > 0) {\r
+ t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);\r
+ }\r
+ } while (n > 0);\r
+ }\r
+ }\r
+ \r
+ if (bio_inalign(bio)) {\r
+ bio_destroy(bio);\r
+ return -999;\r
+ }\r
+ \r
+ hd += bio_numbytes(bio);\r
+ bio_destroy(bio);\r
+ \r
+ /* EPH markers */\r
+ if (tcp->csty & J2K_CP_CSTY_EPH) {\r
+ if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {\r
+ opj_event_msg(t2->cinfo, EVT_ERROR, "Expected EPH marker\n");\r
+ } else {\r
+ hd += 2;\r
+ }\r
+ }\r
+ \r
+ if (cp->ppm==1) {\r
+ cp->ppm_len+=cp->ppm_data-hd;\r
+ cp->ppm_data = hd;\r
+ } else if (tcp->ppt == 1) {\r
+ tcp->ppt_len+=tcp->ppt_data-hd;\r
+ tcp->ppt_data = hd;\r
+ } else {\r
+ c=hd;\r
+ }\r
+ \r
+ for (bandno = 0; bandno < res->numbands; bandno++) {\r
+ opj_tcd_band_t *band = &res->bands[bandno];\r
+ opj_tcd_precinct_t *prc = &band->precincts[precno];\r
+ \r
+ if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;\r
+ \r
+ for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {\r
+ opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];\r
+ opj_tcd_seg_t *seg = NULL;\r
+ if (!cblk->numnewpasses)\r
+ continue;\r
+ if (!cblk->numsegs) {\r
+ seg = &cblk->segs[0];\r
+ cblk->numsegs++;\r
+ cblk->len = 0;\r
+ } else {\r
+ seg = &cblk->segs[cblk->numsegs - 1];\r
+ if (seg->numpasses == seg->maxpasses) {\r
+ seg++;\r
+ cblk->numsegs++;\r
+ }\r
+ }\r
+ \r
+ do {\r
+ if (c + seg->newlen > src + len) {\r
+ return -999;\r
+ }\r
+ \r
+ memcpy(cblk->data + cblk->len, c, seg->newlen);\r
+ if (seg->numpasses == 0) {\r
+ seg->data = cblk->data + cblk->len;\r
+ }\r
+ c += seg->newlen;\r
+ cblk->len += seg->newlen;\r
+ seg->len += seg->newlen;\r
+ seg->numpasses += seg->numnewpasses;\r
+ cblk->numnewpasses -= seg->numnewpasses;\r
+ if (cblk->numnewpasses > 0) {\r
+ seg++;\r
+ cblk->numsegs++;\r
+ }\r
+ } while (cblk->numnewpasses > 0);\r
+ }\r
+ }\r
+ \r
+ return (c - src);\r
+}\r
+\r
+/* ----------------------------------------------------------------------- */\r
+\r
+int t2_encode_packets(opj_t2_t* t2, int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_image_info_t *image_info) {\r
+ unsigned char *c = dest;\r
+ int e = 0;\r
+ opj_pi_iterator_t *pi = NULL;\r
+ int pino;\r
+\r
+ opj_image_t *image = t2->image;\r
+ opj_cp_t *cp = t2->cp;\r
+ \r
+ /* create a packet iterator */\r
+ pi = pi_create(image, cp, tileno);\r
+ if(!pi) {\r
+ /* TODO: throw an error */\r
+ return -999;\r
+ }\r
+ \r
+ if(image_info) {\r
+ image_info->num = 0;\r
+ }\r
+ \r
+ for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {\r
+ while (pi_next(&pi[pino])) {\r
+ if (pi[pino].layno < maxlayers) {\r
+ e = t2_encode_packet(tile, &cp->tcps[tileno], &pi[pino], c, dest + len - c, image_info, tileno);\r
+ if (e == -999) {\r
+ break;\r
+ } else {\r
+ c += e;\r
+ }\r
+ \r
+ /* INDEX >> */\r
+ if(image_info && image_info->index_on) {\r
+ if(image_info->index_write) {\r
+ opj_tile_info_t *info_TL = &image_info->tile[tileno];\r
+ opj_packet_info_t *info_PK = &info_TL->packet[image_info->num];\r
+ if (!image_info->num) {\r
+ info_PK->start_pos = info_TL->end_header + 1;\r
+ } else {\r
+ info_PK->start_pos = info_TL->packet[image_info->num - 1].end_pos + 1;\r
+ }\r
+ info_PK->end_pos = info_PK->start_pos + e - 1;\r
+ }\r
+\r
+ image_info->num++;\r
+ }\r
+ /* << INDEX */\r
+ }\r
+ }\r
+ }\r
+\r
+ /* don't forget to release pi */\r
+ pi_destroy(pi, cp, tileno);\r
+ \r
+ if (e == -999) {\r
+ return e;\r
+ }\r
+\r
+ return (c - dest);\r
+}\r
+\r
+int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile) {\r
+ unsigned char *c = src;\r
+ opj_pi_iterator_t *pi;\r
+ int pino, e = 0;\r
+ int n = 0;\r
+\r
+ opj_image_t *image = t2->image;\r
+ opj_cp_t *cp = t2->cp;\r
+ \r
+ /* create a packet iterator */\r
+ pi = pi_create(image, cp, tileno);\r
+ if(!pi) {\r
+ /* TODO: throw an error */\r
+ return -999;\r
+ }\r
+ \r
+ for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {\r
+ while (pi_next(&pi[pino])) {\r
+ if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {\r
+ e = t2_decode_packet(t2, c, src + len - c, tile, &cp->tcps[tileno], &pi[pino]);\r
+ } else {\r
+ e = 0;\r
+ }\r
+ \r
+ /* progression in resolution */\r
+ image->comps[pi[pino].compno].resno_decoded = \r
+ (e > 0) ? \r
+ int_max(pi[pino].resno, image->comps[pi[pino].compno].resno_decoded) \r
+ : image->comps[pi[pino].compno].resno_decoded;\r
+ n++;\r
+ \r
+ if (e == -999) { /* ADD */\r
+ break;\r
+ } else {\r
+ c += e;\r
+ }\r
+ }\r
+ }\r
+\r
+ /* don't forget to release pi */\r
+ pi_destroy(pi, cp, tileno);\r
+ \r
+ if (e == -999) {\r
+ return e;\r
+ }\r
+ \r
+ return (c - src);\r
+}\r
+\r
+/* ----------------------------------------------------------------------- */\r
+\r
+opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp) {\r
+ /* create the tcd structure */\r
+ opj_t2_t *t2 = (opj_t2_t*)opj_malloc(sizeof(opj_t2_t));\r
+ if(!t2) return NULL;\r
+ t2->cinfo = cinfo;\r
+ t2->image = image;\r
+ t2->cp = cp;\r
+\r
+ return t2;\r
+}\r
+\r
+void t2_destroy(opj_t2_t *t2) {\r
+ if(t2) {\r
+ opj_free(t2);\r
+ }\r
+}\r
+\r
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff