Alien-FreeImage

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src/Source/LibOpenJPEG/t2.c  view on Meta::CPAN

#define JAS_FPRINTF opj_null_jas_fprintf
#endif

OPJ_BOOL opj_t2_decode_packets( opj_t2_t *p_t2,
                                OPJ_UINT32 p_tile_no,
                                opj_tcd_tile_t *p_tile,
                                OPJ_BYTE *p_src,
                                OPJ_UINT32 * p_data_read,
                                OPJ_UINT32 p_max_len,
                                opj_codestream_index_t *p_cstr_index)
{
        OPJ_BYTE *l_current_data = p_src;
        opj_pi_iterator_t *l_pi = 00;
        OPJ_UINT32 pino;
        opj_image_t *l_image = p_t2->image;
        opj_cp_t *l_cp = p_t2->cp;
        opj_tcp_t *l_tcp = &(p_t2->cp->tcps[p_tile_no]);
        OPJ_UINT32 l_nb_bytes_read;
        OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
        opj_pi_iterator_t *l_current_pi = 00;
#ifdef TODO_MSD
        OPJ_UINT32 curtp = 0;
        OPJ_UINT32 tp_start_packno;
#endif 
        opj_packet_info_t *l_pack_info = 00;
        opj_image_comp_t* l_img_comp = 00;

        OPJ_ARG_NOT_USED(p_cstr_index);

#ifdef TODO_MSD
        if (p_cstr_index) {
                l_pack_info = p_cstr_index->tile_index[p_tile_no].packet;
        }
#endif

        /* create a packet iterator */
        l_pi = opj_pi_create_decode(l_image, l_cp, p_tile_no);
        if (!l_pi) {
                return OPJ_FALSE;
        }


        l_current_pi = l_pi;

        for     (pino = 0; pino <= l_tcp->numpocs; ++pino) {

                /* if the resolution needed is too low, one dim of the tilec could be equal to zero
                 * and no packets are used to decode this resolution and
                 * l_current_pi->resno is always >= p_tile->comps[l_current_pi->compno].minimum_num_resolutions
                 * and no l_img_comp->resno_decoded are computed
                 */
                OPJ_BOOL* first_pass_failed = (OPJ_BOOL*)opj_malloc(l_image->numcomps * sizeof(OPJ_BOOL));
                if (!first_pass_failed)
                {
                    opj_pi_destroy(l_pi,l_nb_pocs);
                    return OPJ_FALSE;
                }
                memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(OPJ_BOOL));

                while (opj_pi_next(l_current_pi)) {
                  JAS_FPRINTF( stderr, "packet offset=00000166 prg=%d cmptno=%02d rlvlno=%02d prcno=%03d lyrno=%02d\n\n",
                    l_current_pi->poc.prg1, l_current_pi->compno, l_current_pi->resno, l_current_pi->precno, l_current_pi->layno );

                        if (l_tcp->num_layers_to_decode > l_current_pi->layno
                                        && l_current_pi->resno < p_tile->comps[l_current_pi->compno].minimum_num_resolutions) {
                                l_nb_bytes_read = 0;

                                first_pass_failed[l_current_pi->compno] = OPJ_FALSE;

                                if (! opj_t2_decode_packet(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info)) {
                                        opj_pi_destroy(l_pi,l_nb_pocs);
                                        opj_free(first_pass_failed);
                                        return OPJ_FALSE;
                                }

                                l_img_comp = &(l_image->comps[l_current_pi->compno]);
                                l_img_comp->resno_decoded = opj_uint_max(l_current_pi->resno, l_img_comp->resno_decoded);
                        }
                        else {
                                l_nb_bytes_read = 0;
                                if (! opj_t2_skip_packet(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info)) {
                                        opj_pi_destroy(l_pi,l_nb_pocs);
                                        opj_free(first_pass_failed);
                                        return OPJ_FALSE;
                                }
                        }

                        if (first_pass_failed[l_current_pi->compno]) {
                                l_img_comp = &(l_image->comps[l_current_pi->compno]);
                                if (l_img_comp->resno_decoded == 0)
                                        l_img_comp->resno_decoded = p_tile->comps[l_current_pi->compno].minimum_num_resolutions - 1;
                        }

                        l_current_data += l_nb_bytes_read;
                        p_max_len -= l_nb_bytes_read;

                        /* INDEX >> */
#ifdef TODO_MSD
                        if(p_cstr_info) {
                                opj_tile_info_v2_t *info_TL = &p_cstr_info->tile[p_tile_no];
                                opj_packet_info_t *info_PK = &info_TL->packet[p_cstr_info->packno];
                                tp_start_packno = 0;
                                if (!p_cstr_info->packno) {
                                        info_PK->start_pos = info_TL->end_header + 1;
                                } else if (info_TL->packet[p_cstr_info->packno-1].end_pos >= (OPJ_INT32)p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_pos){ /* New tile part */
                                        info_TL->tp[curtp].tp_numpacks = p_cstr_info->packno - tp_start_packno; /* Number of packets in previous tile-part */
                                        tp_start_packno = p_cstr_info->packno;
                                        curtp++;
                                        info_PK->start_pos = p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_header+1;
                                } else {
                                        info_PK->start_pos = (l_cp->m_specific_param.m_enc.m_tp_on && info_PK->start_pos) ? info_PK->start_pos : info_TL->packet[p_cstr_info->packno - 1].end_pos + 1;
                                }
                                info_PK->end_pos = info_PK->start_pos + l_nb_bytes_read - 1;
                                info_PK->end_ph_pos += info_PK->start_pos - 1;  /* End of packet header which now only represents the distance */
                                ++p_cstr_info->packno;
                        }
#endif
                        /* << INDEX */
                }
                ++l_current_pi;

src/Source/LibOpenJPEG/t2.c  view on Meta::CPAN



OPJ_BOOL opj_t2_read_packet_header( opj_t2_t* p_t2,
                                    opj_tcd_tile_t *p_tile,
                                    opj_tcp_t *p_tcp,
                                    opj_pi_iterator_t *p_pi,
                                    OPJ_BOOL * p_is_data_present,
                                    OPJ_BYTE *p_src_data,
                                    OPJ_UINT32 * p_data_read,
                                    OPJ_UINT32 p_max_length,
                                    opj_packet_info_t *p_pack_info)

{
        /* loop */
        OPJ_UINT32 bandno, cblkno;
        OPJ_UINT32 l_nb_code_blocks;
        OPJ_UINT32 l_remaining_length;
        OPJ_UINT32 l_header_length;
        OPJ_UINT32 * l_modified_length_ptr = 00;
        OPJ_BYTE *l_current_data = p_src_data;
        opj_cp_t *l_cp = p_t2->cp;
        opj_bio_t *l_bio = 00;  /* BIO component */
        opj_tcd_band_t *l_band = 00;
        opj_tcd_cblk_dec_t* l_cblk = 00;
        opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];

        OPJ_BYTE *l_header_data = 00;
        OPJ_BYTE **l_header_data_start = 00;

        OPJ_UINT32 l_present;

        if (p_pi->layno == 0) {
                l_band = l_res->bands;

                /* reset tagtrees */
                for (bandno = 0; bandno < l_res->numbands; ++bandno) {
                        opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];

                        if ( ! ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) ) {
                                opj_tgt_reset(l_prc->incltree);
                                opj_tgt_reset(l_prc->imsbtree);
                                l_cblk = l_prc->cblks.dec;

                                l_nb_code_blocks = l_prc->cw * l_prc->ch;
                                for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
                                        l_cblk->numsegs = 0;
                                        l_cblk->real_num_segs = 0;
                                        ++l_cblk;
                                }
                        }

                        ++l_band;
                }
        }

        /* SOP markers */

        if (p_tcp->csty & J2K_CP_CSTY_SOP) {
                if ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) {
                        /* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_WARNING, "Expected SOP marker\n"); */
                        fprintf(stderr, "Error : expected SOP marker\n");
                } else {
                        l_current_data += 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
        */

        l_bio = opj_bio_create();
        if (! l_bio) {
                return OPJ_FALSE;
        }

        if (l_cp->ppm == 1) { /* PPM */
                l_header_data_start = &l_cp->ppm_data;
                l_header_data = *l_header_data_start;
                l_modified_length_ptr = &(l_cp->ppm_len);

        }
        else if (p_tcp->ppt == 1) { /* PPT */
                l_header_data_start = &(p_tcp->ppt_data);
                l_header_data = *l_header_data_start;
                l_modified_length_ptr = &(p_tcp->ppt_len);
        }
        else {  /* Normal Case */
                l_header_data_start = &(l_current_data);
                l_header_data = *l_header_data_start;
                l_remaining_length = (OPJ_UINT32)(p_src_data+p_max_length-l_header_data);
                l_modified_length_ptr = &(l_remaining_length);
        }

        opj_bio_init_dec(l_bio, l_header_data,*l_modified_length_ptr);

        l_present = opj_bio_read(l_bio, 1);
        JAS_FPRINTF(stderr, "present=%d \n", l_present );
        if (!l_present) {
            /* TODO MSD: no test to control the output of this function*/
                opj_bio_inalign(l_bio);
                l_header_data += opj_bio_numbytes(l_bio);
                opj_bio_destroy(l_bio);

                /* EPH markers */
                if (p_tcp->csty & J2K_CP_CSTY_EPH) {
                        if (p_max_length < 2) {
                                fprintf(stderr, "Not enough space for expected EPH marker\n");
                        } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
                                fprintf(stderr, "Error : expected EPH marker\n");
                        } else {
                                l_header_data += 2;
                        }
                }

                l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start);
                *l_modified_length_ptr -= l_header_length;
                *l_header_data_start += l_header_length;

                /* << INDEX */
                /* End of packet header position. Currently only represents the distance to start of packet
                   Will be updated later by incrementing with packet start value */
                if (p_pack_info) {
                        p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
                }
                /* INDEX >> */

                * p_is_data_present = OPJ_FALSE;
                *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data);
                return OPJ_TRUE;
        }

        l_band = l_res->bands;
        for (bandno = 0; bandno < l_res->numbands; ++bandno) {
                opj_tcd_precinct_t *l_prc = &(l_band->precincts[p_pi->precno]);

                if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
                        ++l_band;
                        continue;
                }

                l_nb_code_blocks = l_prc->cw * l_prc->ch;
                l_cblk = l_prc->cblks.dec;
                for (cblkno = 0; cblkno < l_nb_code_blocks; cblkno++) {
                        OPJ_UINT32 l_included,l_increment, l_segno;
                        OPJ_INT32 n;

                        /* if cblk not yet included before --> inclusion tagtree */
                        if (!l_cblk->numsegs) {
                                l_included = opj_tgt_decode(l_bio, l_prc->incltree, cblkno, (OPJ_INT32)(p_pi->layno + 1));
                                /* else one bit */
                        }
                        else {
                                l_included = opj_bio_read(l_bio, 1);
                        }

                        /* if cblk not included */
                        if (!l_included) {
                                l_cblk->numnewpasses = 0;
                                ++l_cblk;
        JAS_FPRINTF(stderr, "included=%d \n", l_included);
                                continue;
                        }

                        /* if cblk not yet included --> zero-bitplane tagtree */
                        if (!l_cblk->numsegs) {
                                OPJ_UINT32 i = 0;

                                while (!opj_tgt_decode(l_bio, l_prc->imsbtree, cblkno, (OPJ_INT32)i)) {
                                        ++i;
                                }

                                l_cblk->numbps = (OPJ_UINT32)l_band->numbps + 1 - i;
                                l_cblk->numlenbits = 3;
                        }

                        /* number of coding passes */
                        l_cblk->numnewpasses = opj_t2_getnumpasses(l_bio);
                        l_increment = opj_t2_getcommacode(l_bio);

                        /* length indicator increment */
                        l_cblk->numlenbits += l_increment;
                        l_segno = 0;

                        if (!l_cblk->numsegs) {
                                if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 1)) {
                                        opj_bio_destroy(l_bio);
                                        return OPJ_FALSE;
                                }
                        }
                        else {
                                l_segno = l_cblk->numsegs - 1;
                                if (l_cblk->segs[l_segno].numpasses == l_cblk->segs[l_segno].maxpasses) {
                                        ++l_segno;
                                        if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
                                                opj_bio_destroy(l_bio);
                                                return OPJ_FALSE;
                                        }
                                }
                        }
                        n = (OPJ_INT32)l_cblk->numnewpasses;

                        do {
                                l_cblk->segs[l_segno].numnewpasses = (OPJ_UINT32)opj_int_min((OPJ_INT32)(l_cblk->segs[l_segno].maxpasses - l_cblk->segs[l_segno].numpasses), n);
                                l_cblk->segs[l_segno].newlen = opj_bio_read(l_bio, l_cblk->numlenbits + opj_uint_floorlog2(l_cblk->segs[l_segno].numnewpasses));
                                        JAS_FPRINTF(stderr, "included=%d numnewpasses=%d increment=%d len=%d \n", l_included, l_cblk->segs[l_segno].numnewpasses, l_increment, l_cblk->segs[l_segno].newlen );

                                n -= (OPJ_INT32)l_cblk->segs[l_segno].numnewpasses;
                                if (n > 0) {
                                        ++l_segno;

                                        if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
                                                opj_bio_destroy(l_bio);
                                                return OPJ_FALSE;
                                        }
                                }
                        } while (n > 0);

                        ++l_cblk;
                }

                ++l_band;
        }

        if (!opj_bio_inalign(l_bio)) {
                opj_bio_destroy(l_bio);
                return OPJ_FALSE;
        }

        l_header_data += opj_bio_numbytes(l_bio);
        opj_bio_destroy(l_bio);

        /* EPH markers */
        if (p_tcp->csty & J2K_CP_CSTY_EPH) {
                if (p_max_length < 2) {
                        fprintf(stderr, "Not enough space for expected EPH marker\n");
                } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
                        /* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_ERROR, "Expected EPH marker\n"); */
                        fprintf(stderr, "Error : expected EPH marker\n");
                } else {
                        l_header_data += 2;
                }
        }

        l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start);
        JAS_FPRINTF( stderr, "hdrlen=%d \n", l_header_length );
        JAS_FPRINTF( stderr, "packet body\n");
        *l_modified_length_ptr -= l_header_length;
        *l_header_data_start += l_header_length;

        /* << INDEX */
        /* End of packet header position. Currently only represents the distance to start of packet
         Will be updated later by incrementing with packet start value */
        if (p_pack_info) {
                p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
        }
        /* INDEX >> */

        *p_is_data_present = OPJ_TRUE;
        *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data);

        return OPJ_TRUE;
}

OPJ_BOOL opj_t2_read_packet_data(   opj_t2_t* p_t2,
                                    opj_tcd_tile_t *p_tile,
                                    opj_pi_iterator_t *p_pi,
                                    OPJ_BYTE *p_src_data,
                                    OPJ_UINT32 * p_data_read,
                                    OPJ_UINT32 p_max_length,
                                    opj_packet_info_t *pack_info)
{
        OPJ_UINT32 bandno, cblkno;
        OPJ_UINT32 l_nb_code_blocks;
        OPJ_BYTE *l_current_data = p_src_data;
        opj_tcd_band_t *l_band = 00;
        opj_tcd_cblk_dec_t* l_cblk = 00;
        opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];

        OPJ_ARG_NOT_USED(p_t2);
        OPJ_ARG_NOT_USED(pack_info);

        l_band = l_res->bands;
        for (bandno = 0; bandno < l_res->numbands; ++bandno) {
                opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];

                if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
                        ++l_band;
                        continue;
                }

                l_nb_code_blocks = l_prc->cw * l_prc->ch;
                l_cblk = l_prc->cblks.dec;

                for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
                        opj_tcd_seg_t *l_seg = 00;

                        if (!l_cblk->numnewpasses) {
                                /* nothing to do */
                                ++l_cblk;
                                continue;
                        }

                        if (!l_cblk->numsegs) {
                                l_seg = l_cblk->segs;
                                ++l_cblk->numsegs;
                                l_cblk->data_current_size = 0;
                        }
                        else {
                                l_seg = &l_cblk->segs[l_cblk->numsegs - 1];

                                if (l_seg->numpasses == l_seg->maxpasses) {
                                        ++l_seg;
                                        ++l_cblk->numsegs;
                                }
                        }

                        do {
                                if (l_current_data + l_seg->newlen > p_src_data + p_max_length) {
                                        fprintf(stderr, "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
                                                l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
                                        return OPJ_FALSE;
                                }

#ifdef USE_JPWL
                        /* we need here a j2k handle to verify if making a check to
                        the validity of cblocks parameters is selected from user (-W) */

                                /* let's check that we are not exceeding */
                                if ((l_cblk->len + l_seg->newlen) > 8192) {
                                        opj_event_msg(p_t2->cinfo, EVT_WARNING,
                                                "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
                                                l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
                                        if (!JPWL_ASSUME) {
                                                opj_event_msg(p_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
                                                return OPJ_FALSE;
                                        }
                                        l_seg->newlen = 8192 - l_cblk->len;
                                        opj_event_msg(p_t2->cinfo, EVT_WARNING, "      - truncating segment to %d\n", l_seg->newlen);
                                        break;
                                };

#endif /* USE_JPWL */
                                /* Check if the cblk->data have allocated enough memory */
                                if ((l_cblk->data_current_size + l_seg->newlen) > l_cblk->data_max_size) {
                                    OPJ_BYTE* new_cblk_data = (OPJ_BYTE*) opj_realloc(l_cblk->data, l_cblk->data_current_size + l_seg->newlen);
                                    if(! new_cblk_data) {
                                        opj_free(l_cblk->data);
                                        l_cblk->data_max_size = 0;
                                        /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to realloc code block cata!\n"); */
                                        return OPJ_FALSE;
                                    }
                                    l_cblk->data_max_size = l_cblk->data_current_size + l_seg->newlen;
                                    l_cblk->data = new_cblk_data;
                                }
                               
                                memcpy(l_cblk->data + l_cblk->data_current_size, l_current_data, l_seg->newlen);

                                if (l_seg->numpasses == 0) {
                                        l_seg->data = &l_cblk->data;
                                        l_seg->dataindex = l_cblk->data_current_size;
                                }

                                l_current_data += l_seg->newlen;
                                l_seg->numpasses += l_seg->numnewpasses;
                                l_cblk->numnewpasses -= l_seg->numnewpasses;

                                l_seg->real_num_passes = l_seg->numpasses;
                                l_cblk->data_current_size += l_seg->newlen;
                                l_seg->len += l_seg->newlen;

                                if (l_cblk->numnewpasses > 0) {
                                        ++l_seg;
                                        ++l_cblk->numsegs;
                                }
                        } while (l_cblk->numnewpasses > 0);

                        l_cblk->real_num_segs = l_cblk->numsegs;
                        ++l_cblk;
                } /* next code_block */

src/Source/LibOpenJPEG/t2.c  view on Meta::CPAN

        *(p_data_read) = (OPJ_UINT32)(l_current_data - p_src_data);

        return OPJ_TRUE;
}

OPJ_BOOL opj_t2_skip_packet_data(   opj_t2_t* p_t2,
                                    opj_tcd_tile_t *p_tile,
                                    opj_pi_iterator_t *p_pi,
                                    OPJ_UINT32 * p_data_read,
                                    OPJ_UINT32 p_max_length,
                                    opj_packet_info_t *pack_info)
{
        OPJ_UINT32 bandno, cblkno;
        OPJ_UINT32 l_nb_code_blocks;
        opj_tcd_band_t *l_band = 00;
        opj_tcd_cblk_dec_t* l_cblk = 00;
        opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];

        OPJ_ARG_NOT_USED(p_t2);
        OPJ_ARG_NOT_USED(pack_info);

        *p_data_read = 0;
        l_band = l_res->bands;

        for (bandno = 0; bandno < l_res->numbands; ++bandno) {
                opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];

                if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
                        ++l_band;
                        continue;
                }

                l_nb_code_blocks = l_prc->cw * l_prc->ch;
                l_cblk = l_prc->cblks.dec;

                for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
                        opj_tcd_seg_t *l_seg = 00;

                        if (!l_cblk->numnewpasses) {
                                /* nothing to do */
                                ++l_cblk;
                                continue;
                        }

                        if (!l_cblk->numsegs) {
                                l_seg = l_cblk->segs;
                                ++l_cblk->numsegs;
                                l_cblk->data_current_size = 0;
                        }
                        else {
                                l_seg = &l_cblk->segs[l_cblk->numsegs - 1];

                                if (l_seg->numpasses == l_seg->maxpasses) {
                                        ++l_seg;
                                        ++l_cblk->numsegs;
                                }
                        }

                        do {
                                if (* p_data_read + l_seg->newlen > p_max_length) {
                                        fprintf(stderr, "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
                                                l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
                                        return OPJ_FALSE;
                                }

#ifdef USE_JPWL
                        /* we need here a j2k handle to verify if making a check to
                        the validity of cblocks parameters is selected from user (-W) */

                                /* let's check that we are not exceeding */
                                if ((l_cblk->len + l_seg->newlen) > 8192) {
                                        opj_event_msg(p_t2->cinfo, EVT_WARNING,
                                                "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
                                                l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
                                        if (!JPWL_ASSUME) {
                                                opj_event_msg(p_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
                                                return -999;
                                        }
                                        l_seg->newlen = 8192 - l_cblk->len;
                                        opj_event_msg(p_t2->cinfo, EVT_WARNING, "      - truncating segment to %d\n", l_seg->newlen);
                                        break;
                                };

#endif /* USE_JPWL */
                                        JAS_FPRINTF(stderr, "p_data_read (%d) newlen (%d) \n", *p_data_read, l_seg->newlen );
                                *(p_data_read) += l_seg->newlen;

                                l_seg->numpasses += l_seg->numnewpasses;
                                l_cblk->numnewpasses -= l_seg->numnewpasses;
                                if (l_cblk->numnewpasses > 0)
                                {
                                        ++l_seg;
                                        ++l_cblk->numsegs;
                                }
                        } while (l_cblk->numnewpasses > 0);

                        ++l_cblk;
                }

                ++l_band;
        }

        return OPJ_TRUE;
}


OPJ_BOOL opj_t2_init_seg(   opj_tcd_cblk_dec_t* cblk,
                            OPJ_UINT32 index, 
                            OPJ_UINT32 cblksty, 
                            OPJ_UINT32 first)
{
        opj_tcd_seg_t* seg = 00;
        OPJ_UINT32 l_nb_segs = index + 1;

        if (l_nb_segs > cblk->m_current_max_segs) {
                opj_tcd_seg_t* new_segs;
                cblk->m_current_max_segs += OPJ_J2K_DEFAULT_NB_SEGS;

                new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, cblk->m_current_max_segs * sizeof(opj_tcd_seg_t));
                if(! new_segs) {
                        opj_free(cblk->segs);
                        cblk->segs = NULL;
                        cblk->m_current_max_segs = 0;
                        /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to initialize segment %d\n", l_nb_segs); */
                        return OPJ_FALSE;
                }
                cblk->segs = new_segs;
        }

        seg = &cblk->segs[index];
        memset(seg,0,sizeof(opj_tcd_seg_t));

        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;
        }



( run in 0.499 second using v1.01-cache-2.11-cpan-63c85eba8c4 )