- /* loop*/
- OPJ_UINT32 pino;
- OPJ_UINT32 compno, resno;
-
- /* to store w, h, dx and dy fro all components and resolutions*/
- OPJ_UINT32 * l_tmp_data;
- OPJ_UINT32 ** l_tmp_ptr;
-
- /* encoding prameters to set*/
- OPJ_UINT32 l_max_res;
- OPJ_UINT32 l_max_prec;
- OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
- OPJ_UINT32 l_dx_min,l_dy_min;
- OPJ_UINT32 l_bound;
- OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
- OPJ_UINT32 l_data_stride;
-
- /* pointers*/
- opj_pi_iterator_t *l_pi = 00;
- opj_tcp_v2_t *l_tcp = 00;
- const opj_tccp_t *l_tccp = 00;
- opj_pi_comp_t *l_current_comp = 00;
- opj_image_comp_t * l_img_comp = 00;
- opj_pi_iterator_t * l_current_pi = 00;
- OPJ_UINT32 * l_encoding_value_ptr = 00;
-
- /* preconditions in debug*/
- assert(p_cp != 00);
- assert(p_image != 00);
- assert(p_tile_no < p_cp->tw * p_cp->th);
-
- /* initializations*/
- l_tcp = &p_cp->tcps[p_tile_no];
- l_bound = l_tcp->numpocs+1;
-
- l_data_stride = 4 * J2K_MAXRLVLS;
- l_tmp_data = (OPJ_UINT32*)opj_malloc(
- l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
- if (! l_tmp_data) {
- return 00;
- }
-
- l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
- p_image->numcomps * sizeof(OPJ_UINT32 *));
- if (! l_tmp_ptr) {
- opj_free(l_tmp_data);
- return 00;
- }
-
- /* memory allocation for pi*/
- l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
- if (!l_pi) {
- opj_free(l_tmp_data);
- opj_free(l_tmp_ptr);
- return 00;
- }
-
- l_encoding_value_ptr = l_tmp_data;
- /* update pointer array*/
- for (compno = 0; compno < p_image->numcomps; ++compno) {
- l_tmp_ptr[compno] = l_encoding_value_ptr;
- l_encoding_value_ptr += l_data_stride;
- }
-
- /* get encoding parameters*/
- opj_get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
-
- /* step calculations*/
- l_step_p = 1;
- l_step_c = l_max_prec * l_step_p;
- l_step_r = p_image->numcomps * l_step_c;
- l_step_l = l_max_res * l_step_r;
-
- /* set values for first packet iterator*/
- l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
- l_current_pi = l_pi;
-
- /* memory allocation for include*/
- l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
- if (!l_current_pi->include) {
- opj_free(l_tmp_data);
- opj_free(l_tmp_ptr);
- opj_pi_destroy(l_pi, l_bound);
- return 00;
- }
- memset(l_current_pi->include,0,l_tcp->numlayers * l_step_l* sizeof(OPJ_INT16));
-
- /* special treatment for the first packet iterator*/
- l_current_comp = l_current_pi->comps;
- l_img_comp = p_image->comps;
- l_tccp = l_tcp->tccps;
- l_current_pi->tx0 = l_tx0;
- l_current_pi->ty0 = l_ty0;
- l_current_pi->tx1 = l_tx1;
- l_current_pi->ty1 = l_ty1;
- l_current_pi->dx = l_dx_min;
- l_current_pi->dy = l_dy_min;
- l_current_pi->step_p = l_step_p;
- l_current_pi->step_c = l_step_c;
- l_current_pi->step_r = l_step_r;
- l_current_pi->step_l = l_step_l;
-
- /* allocation for components and number of components has already been calculated by opj_pi_create */
- for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
- opj_pi_resolution_t *l_res = l_current_comp->resolutions;
- l_encoding_value_ptr = l_tmp_ptr[compno];
-
- l_current_comp->dx = l_img_comp->dx;
- l_current_comp->dy = l_img_comp->dy;
-
- /* resolutions have already been initialized */
- for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
- l_res->pdx = *(l_encoding_value_ptr++);
- l_res->pdy = *(l_encoding_value_ptr++);
- l_res->pw = *(l_encoding_value_ptr++);
- l_res->ph = *(l_encoding_value_ptr++);
- ++l_res;
- }
-
- ++l_current_comp;
- ++l_img_comp;
- ++l_tccp;
- }
- ++l_current_pi;
-
- for (pino = 1 ; pino<l_bound ; ++pino ) {
- opj_pi_comp_t *l_current_comp = l_current_pi->comps;
- opj_image_comp_t * l_img_comp = p_image->comps;
- l_tccp = l_tcp->tccps;
-
- l_current_pi->tx0 = l_tx0;
- l_current_pi->ty0 = l_ty0;
- l_current_pi->tx1 = l_tx1;
- l_current_pi->ty1 = l_ty1;
- l_current_pi->dx = l_dx_min;
- l_current_pi->dy = l_dy_min;
- l_current_pi->step_p = l_step_p;
- l_current_pi->step_c = l_step_c;
- l_current_pi->step_r = l_step_r;
- l_current_pi->step_l = l_step_l;
-
- /* allocation for components and number of components has already been calculated by opj_pi_create */
- for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
- opj_pi_resolution_t *l_res = l_current_comp->resolutions;
- l_encoding_value_ptr = l_tmp_ptr[compno];
-
- l_current_comp->dx = l_img_comp->dx;
- l_current_comp->dy = l_img_comp->dy;
- /* resolutions have already been initialized */
- for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
- l_res->pdx = *(l_encoding_value_ptr++);
- l_res->pdy = *(l_encoding_value_ptr++);
- l_res->pw = *(l_encoding_value_ptr++);
- l_res->ph = *(l_encoding_value_ptr++);
- ++l_res;
- }
- ++l_current_comp;
- ++l_img_comp;
- ++l_tccp;
- }
-
- /* special treatment*/
- l_current_pi->include = (l_current_pi-1)->include;
- ++l_current_pi;
- }
-
- opj_free(l_tmp_data);
- l_tmp_data = 00;
- opj_free(l_tmp_ptr);
- l_tmp_ptr = 00;
-
- if (l_tcp->POC && ( p_cp->m_specific_param.m_enc.m_cinema || p_t2_mode == FINAL_PASS)) {
- opj_pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
- }
- else {
- opj_pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
- }
-
- return l_pi;
-}
+ /* loop*/
+ OPJ_UINT32 compno, resno;
+
+ /* pointers*/
+ const opj_tcp_t *tcp = 00;
+ const opj_tccp_t * l_tccp = 00;
+ const opj_image_comp_t * l_img_comp = 00;
+
+ /* to store l_dx, l_dy, w and h for each resolution and component.*/
+ OPJ_UINT32 * lResolutionPtr;
+
+ /* position in x and y of tile*/
+ OPJ_UINT32 p, q;
+
+ /* non-corrected (in regard to image offset) tile offset */
+ OPJ_UINT32 l_tx0, l_ty0;
+
+ /* preconditions in debug*/
+ assert(p_cp != 00);
+ assert(p_image != 00);
+ assert(tileno < p_cp->tw * p_cp->th);
+
+ /* initializations*/
+ tcp = &p_cp->tcps [tileno];
+ l_tccp = tcp->tccps;
+ l_img_comp = p_image->comps;
+
+ /* position in x and y of tile*/
+ p = tileno % p_cp->tw;
+ q = tileno / p_cp->tw;
+
+ /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
+ l_tx0 = p_cp->tx0 + p *
+ p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
+ *p_tx0 = (OPJ_INT32)opj_uint_max(l_tx0, p_image->x0);
+ *p_tx1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
+ l_ty0 = p_cp->ty0 + q *
+ p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
+ *p_ty0 = (OPJ_INT32)opj_uint_max(l_ty0, p_image->y0);
+ *p_ty1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_ty0, p_cp->tdy), p_image->y1);
+
+ /* max precision and resolution is 0 (can only grow)*/
+ *p_max_prec = 0;
+ *p_max_res = 0;
+
+ /* take the largest value for dx_min and dy_min*/
+ *p_dx_min = 0x7fffffff;
+ *p_dy_min = 0x7fffffff;
+
+ for (compno = 0; compno < p_image->numcomps; ++compno) {
+ /* aritmetic variables to calculate*/
+ OPJ_UINT32 l_level_no;
+ OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
+ OPJ_INT32 l_px0, l_py0, l_px1, py1;
+ OPJ_UINT32 l_product;
+ OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
+ OPJ_UINT32 l_pdx, l_pdy, l_pw, l_ph;
+
+ lResolutionPtr = p_resolutions[compno];
+
+ l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
+ l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
+ l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
+ l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
+
+ if (l_tccp->numresolutions > *p_max_res) {
+ *p_max_res = l_tccp->numresolutions;
+ }
+
+ /* use custom size for precincts*/
+ l_level_no = l_tccp->numresolutions;
+ for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
+ OPJ_UINT32 l_dx, l_dy;
+
+ --l_level_no;
+
+ /* precinct width and height*/
+ l_pdx = l_tccp->prcw[resno];
+ l_pdy = l_tccp->prch[resno];
+ *lResolutionPtr++ = l_pdx;
+ *lResolutionPtr++ = l_pdy;
+ l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
+ l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
+ /* take the minimum size for l_dx for each comp and resolution*/
+ *p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32) * p_dx_min, (OPJ_INT32)l_dx);
+ *p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32) * p_dy_min, (OPJ_INT32)l_dy);
+
+ /* various calculations of extents*/
+ l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
+ l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
+ l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
+ l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
+ l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
+ l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
+ l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
+ py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
+ l_pw = (l_rx0 == l_rx1) ? 0 : (OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
+ l_ph = (l_ry0 == l_ry1) ? 0 : (OPJ_UINT32)((py1 - l_py0) >> l_pdy);
+ *lResolutionPtr++ = l_pw;
+ *lResolutionPtr++ = l_ph;
+ l_product = l_pw * l_ph;