]> granicus.if.org Git - openjpeg/commitdiff
[trunk] (style) move global pi functions to the right place and update indentation
authorMickael Savinaud <savmickael@users.noreply.github.com>
Wed, 3 Oct 2012 14:41:40 +0000 (14:41 +0000)
committerMickael Savinaud <savmickael@users.noreply.github.com>
Wed, 3 Oct 2012 14:41:40 +0000 (14:41 +0000)
src/lib/openjp2/pi.c

index 73bff9cf3a640d84bd2c48fe505e94aa7375d60a..953c274e8f3748f8c5c2aeb1569e9b2fb02a7c01 100644 (file)
@@ -545,998 +545,984 @@ LABEL_SKIP:;
        return OPJ_FALSE;
 }
 
-/*
-==========================================================
-   Packet iterator interface
-==========================================================
-*/
-opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
-                                                                               opj_cp_v2_t *p_cp,
-                                                                               OPJ_UINT32 p_tile_no)
+void opj_get_encoding_parameters(      const opj_image_t *p_image,
+                                    const opj_cp_v2_t *p_cp,
+                                    OPJ_UINT32 p_tileno,
+                                    OPJ_INT32 * p_tx0,
+                                    OPJ_INT32  * p_tx1,
+                                    OPJ_INT32  * p_ty0,
+                                    OPJ_INT32  * p_ty1,
+                                    OPJ_UINT32 * p_dx_min,
+                                    OPJ_UINT32 * p_dy_min,
+                                    OPJ_UINT32 * p_max_prec,
+                                    OPJ_UINT32 * p_max_res )
 {
        /* 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;
-
+       OPJ_UINT32  compno, resno;
        /* 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;
+       const opj_tcp_v2_t *l_tcp = 00;
+       const opj_tccp_t * l_tccp = 00;
+       const opj_image_comp_t * l_img_comp = 00;
 
-       /* preconditions in debug */
+       /* position in x and y of tile */
+       OPJ_UINT32 p, q;
+
+       /* preconditions */
        assert(p_cp != 00);
        assert(p_image != 00);
-       assert(p_tile_no < p_cp->tw * p_cp->th);
+       assert(p_tileno < p_cp->tw * p_cp->th);
 
        /* initializations */
-       l_tcp = &p_cp->tcps[p_tile_no];
-       l_bound = l_tcp->numpocs+1;
+       l_tcp = &p_cp->tcps [p_tileno];
+       l_img_comp = p_image->comps;
+       l_tccp = l_tcp->tccps;
 
-       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;
-       }
+       /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
+       p = p_tileno % p_cp->tw;
+       q = p_tileno / p_cp->tw;
 
-       /* 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;
-       }
+       /* find extent of tile */
+       *p_tx0 = int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
+       *p_tx1 = int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
+       *p_ty0 = int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
+       *p_ty1 = int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
 
-       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);
+       /* max precision is 0 (can only grow) */
+       *p_max_prec = 0;
+       *p_max_res = 0;
 
-       /* 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;
+       /* take the largest value for dx_min and dy_min */
+       *p_dx_min = 0x7fffffff;
+       *p_dy_min  = 0x7fffffff;
 
-       /* set values for first packet iterator */
-       l_current_pi = l_pi;
+       for (compno = 0; compno < p_image->numcomps; ++compno) {
+               /* arithmetic 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_pdx, l_pdy;
+               OPJ_UINT32 l_pw, l_ph;
+               OPJ_UINT32 l_product;
+               OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
 
-       /* memory allocation for include */
-       l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * 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 + 1) * l_step_l* sizeof(OPJ_INT16));
+               l_tcx0 = int_ceildiv(*p_tx0, l_img_comp->dx);
+               l_tcy0 = int_ceildiv(*p_ty0, l_img_comp->dy);
+               l_tcx1 = int_ceildiv(*p_tx1, l_img_comp->dx);
+               l_tcy1 = int_ceildiv(*p_ty1, l_img_comp->dy);
 
-       /* 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;
+               if (l_tccp->numresolutions > *p_max_res) {
+                       *p_max_res = l_tccp->numresolutions;
+               }
 
-       l_current_pi->tx0 = l_tx0;
-       l_current_pi->ty0 = l_ty0;
-       l_current_pi->tx1 = l_tx1;
-       l_current_pi->ty1 = l_ty1;
+               /* use custom size for precincts */
+               for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
+                       OPJ_UINT32 l_dx, l_dy;
 
-       /*l_current_pi->dx = l_img_comp->dx;*/
-       /*l_current_pi->dy = l_img_comp->dy;*/
+                       /* precinct width and height */
+                       l_pdx = l_tccp->prcw[resno];
+                       l_pdy = l_tccp->prch[resno];
 
-       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;
+                       l_dx = l_img_comp->dx * (1 << (l_pdx + l_tccp->numresolutions - 1 - resno));
+                       l_dy = l_img_comp->dy * (1 << (l_pdy + l_tccp->numresolutions - 1 - resno));
 
-       /* 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];
+                       /* take the minimum size for dx for each comp and resolution */
+                       *p_dx_min = uint_min(*p_dx_min, l_dx);
+                       *p_dy_min = uint_min(*p_dy_min, l_dy);
 
-               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;
+                       /* various calculations of extents */
+                       l_level_no = l_tccp->numresolutions - 1 - resno;
+
+                       l_rx0 = int_ceildivpow2(l_tcx0, l_level_no);
+                       l_ry0 = int_ceildivpow2(l_tcy0, l_level_no);
+                       l_rx1 = int_ceildivpow2(l_tcx1, l_level_no);
+                       l_ry1 = int_ceildivpow2(l_tcy1, l_level_no);
+
+                       l_px0 = int_floordivpow2(l_rx0, l_pdx) << l_pdx;
+                       l_py0 = int_floordivpow2(l_ry0, l_pdy) << l_pdy;
+                       l_px1 = int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
+
+                       py1 = int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
+
+                       l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
+                       l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
+
+                       l_product = l_pw * l_ph;
+
+                       /* update precision */
+                       if (l_product > *p_max_prec) {
+                               *p_max_prec = l_product;
+                       }
                }
-               ++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;
+void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
+                                        const opj_cp_v2_t *p_cp,
+                                        OPJ_UINT32 tileno,
+                                        OPJ_INT32 * p_tx0,
+                                        OPJ_INT32 * p_tx1,
+                                        OPJ_INT32 * p_ty0,
+                                        OPJ_INT32 * p_ty1,
+                                        OPJ_UINT32 * p_dx_min,
+                                        OPJ_UINT32 * p_dy_min,
+                                        OPJ_UINT32 * p_max_prec,
+                                        OPJ_UINT32 * p_max_res,
+                                        OPJ_UINT32 ** p_resolutions )
+{
+       /* loop*/
+       OPJ_UINT32 compno, resno;
 
-               /* 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];
+       /* pointers*/
+       const opj_tcp_v2_t *tcp = 00;
+       const opj_tccp_t * l_tccp = 00;
+       const opj_image_comp_t * l_img_comp = 00;
 
-                       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)
-       {
-               opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
-       }
-       else
-       {
-               opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
-       }
-       return l_pi;
-}
-
-
-
-opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
-                                            opj_cp_v2_t *p_cp,
-                                            OPJ_UINT32 p_tile_no,
-                                            J2K_T2_MODE p_t2_mode )
-{
-       /* 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;
+       /* to store l_dx, l_dy, w and h for each resolution and component.*/
+       OPJ_UINT32 * lResolutionPtr;
 
-       /* 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;
+       /* position in x and y of tile*/
+       OPJ_UINT32 p, q;
 
        /* preconditions in debug*/
        assert(p_cp != 00);
        assert(p_image != 00);
-       assert(p_tile_no < p_cp->tw * p_cp->th);
+       assert(tileno < p_cp->tw * p_cp->th);
 
        /* initializations*/
-       l_tcp = &p_cp->tcps[p_tile_no];
-       l_bound = l_tcp->numpocs+1;
+       tcp = &p_cp->tcps [tileno];
+       l_tccp = tcp->tccps;
+       l_img_comp = p_image->comps;
 
-       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;
-       }
+       /* position in x and y of tile*/
+       p = tileno % p_cp->tw;
+       q = tileno / p_cp->tw;
 
-       l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
-               p_image->numcomps * sizeof(OPJ_UINT32 *));
-       if (! l_tmp_ptr) {
-               opj_free(l_tmp_data);
-               return 00;
-       }
+       /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
+       *p_tx0 = int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
+       *p_tx1 = int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
+       *p_ty0 = int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
+       *p_ty1 = int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
 
-       /* 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;
-       }
+       /* max precision and resolution is 0 (can only grow)*/
+       *p_max_prec = 0;
+       *p_max_res = 0;
 
-       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;
-       }
+       /* take the largest value for dx_min and dy_min*/
+       *p_dx_min = 0x7fffffff;
+       *p_dy_min = 0x7fffffff;
 
-       /* 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);
+       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;
 
-       /* 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;
+               lResolutionPtr = p_resolutions[compno];
 
-       /* 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;
+               l_tcx0 = int_ceildiv(*p_tx0, l_img_comp->dx);
+               l_tcy0 = int_ceildiv(*p_ty0, l_img_comp->dy);
+               l_tcx1 = int_ceildiv(*p_tx1, l_img_comp->dx);
+               l_tcy1 = int_ceildiv(*p_ty1, l_img_comp->dy);
 
-       /* 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));
+               if (l_tccp->numresolutions > *p_max_res) {
+                       *p_max_res = l_tccp->numresolutions;
+               }
 
-       /* 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;
+               /* use custom size for precincts*/
+               l_level_no = l_tccp->numresolutions - 1;
+               for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
+                       OPJ_UINT32 l_dx, l_dy;
 
-       /* 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];
+                       /* 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 * (1 << (l_pdx + l_level_no));
+                       l_dy = l_img_comp->dy * (1 << (l_pdy + l_level_no));
+                       /* take the minimum size for l_dx for each comp and resolution*/
+                       *p_dx_min = int_min(*p_dx_min, l_dx);
+                       *p_dy_min = int_min(*p_dy_min, l_dy);
 
-               l_current_comp->dx = l_img_comp->dx;
-               l_current_comp->dy = l_img_comp->dy;
+                       /* various calculations of extents*/
+                       l_rx0 = int_ceildivpow2(l_tcx0, l_level_no);
+                       l_ry0 = int_ceildivpow2(l_tcy0, l_level_no);
+                       l_rx1 = int_ceildivpow2(l_tcx1, l_level_no);
+                       l_ry1 = int_ceildivpow2(l_tcy1, l_level_no);
+                       l_px0 = int_floordivpow2(l_rx0, l_pdx) << l_pdx;
+                       l_py0 = int_floordivpow2(l_ry0, l_pdy) << l_pdy;
+                       l_px1 = int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
+                       py1 = int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
+                       l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
+                       l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
+                       *lResolutionPtr++ = l_pw;
+                       *lResolutionPtr++ = l_ph;
+                       l_product = l_pw * l_ph;
+                       
+            /* update precision*/
+                       if (l_product > *p_max_prec) {
+                               *p_max_prec = l_product;
+                       }
 
-               /* 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_level_no;
                }
-
-               ++l_current_comp;
-               ++l_img_comp;
                ++l_tccp;
+               ++l_img_comp;
        }
-       ++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;
+opj_pi_iterator_t * opj_pi_create(     const opj_image_t *image,
+                                    const opj_cp_v2_t *cp,
+                                    OPJ_UINT32 tileno )
+{
+       /* loop*/
+       OPJ_UINT32 pino, compno;
+       /* number of poc in the p_pi*/
+       OPJ_UINT32 l_poc_bound;
 
-               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;
+       /* pointers to tile coding parameters and components.*/
+       opj_pi_iterator_t *l_pi = 00;
+       opj_tcp_v2_t *tcp = 00;
+       const opj_tccp_t *tccp = 00;
 
-               /* 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];
+       /* current packet iterator being allocated*/
+       opj_pi_iterator_t *l_current_pi = 00;
 
-                       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);
-       }
+       /* preconditions in debug*/
+       assert(cp != 00);
+       assert(image != 00);
+       assert(tileno < cp->tw * cp->th);
 
-       return l_pi;
-}
+       /* initializations*/
+       tcp = &cp->tcps[tileno];
+       l_poc_bound = tcp->numpocs+1;
 
-opj_bool opj_pi_next(opj_pi_iterator_t * pi) {
-       switch (pi->poc.prg) {
-               case LRCP:
-                       return opj_pi_next_lrcp(pi);
-               case RLCP:
-                       return opj_pi_next_rlcp(pi);
-               case RPCL:
-                       return opj_pi_next_rpcl(pi);
-               case PCRL:
-                       return opj_pi_next_pcrl(pi);
-               case CPRL:
-                       return opj_pi_next_cprl(pi);
-               case PROG_UNKNOWN:
-                       return OPJ_FALSE;
+       /* memory allocations*/
+       l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
+       if (!l_pi) {
+               return NULL;
        }
-       
-       return OPJ_FALSE;
-}
-
+       memset(l_pi,0,l_poc_bound * sizeof(opj_pi_iterator_t));
 
+       l_current_pi = l_pi;
+       for (pino = 0; pino < l_poc_bound ; ++pino) {
 
-void opj_pi_update_encoding_parameters(        const opj_image_t *p_image,
-                                        opj_cp_v2_t *p_cp,
-                                        OPJ_UINT32 p_tile_no )
-{
-       /* encoding parameters 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;
+               l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
+               if (! l_current_pi->comps) {
+                       opj_pi_destroy(l_pi, l_poc_bound);
+                       return NULL;
+               }
 
-       /* pointers */
-       opj_tcp_v2_t *l_tcp = 00;
+               l_current_pi->numcomps = image->numcomps;
+               memset(l_current_pi->comps,0,image->numcomps * sizeof(opj_pi_comp_t));
 
-       /* preconditions */
-       assert(p_cp != 00);
-       assert(p_image != 00);
-       assert(p_tile_no < p_cp->tw * p_cp->th);
+               for (compno = 0; compno < image->numcomps; ++compno) {
+                       opj_pi_comp_t *comp = &l_current_pi->comps[compno];
 
-       l_tcp = &(p_cp->tcps[p_tile_no]);
+                       tccp = &tcp->tccps[compno];
 
-       /* get encoding parameters */
-       opj_get_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);
+                       comp->resolutions = (opj_pi_resolution_t*) opj_malloc(tccp->numresolutions * sizeof(opj_pi_resolution_t));
+                       if (!comp->resolutions) {
+                               opj_pi_destroy(l_pi, l_poc_bound);
+                               return 00;
+                       }
 
-       if (l_tcp->POC) {
-               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);
+                       comp->numresolutions = tccp->numresolutions;
+                       memset(comp->resolutions,0,tccp->numresolutions * sizeof(opj_pi_resolution_t));
+               }
+               ++l_current_pi;
        }
-
+       return l_pi;
 }
 
-void opj_get_encoding_parameters(      const opj_image_t *p_image,
-                                    const opj_cp_v2_t *p_cp,
-                                    OPJ_UINT32 p_tileno,
-                                    OPJ_INT32 * p_tx0,
-                                    OPJ_INT32  * p_tx1,
-                                    OPJ_INT32  * p_ty0,
-                                    OPJ_INT32  * p_ty1,
-                                    OPJ_UINT32 * p_dx_min,
-                                    OPJ_UINT32 * p_dy_min,
-                                    OPJ_UINT32 * p_max_prec,
-                                    OPJ_UINT32 * p_max_res )
+void opj_pi_update_encode_poc_and_final (   opj_cp_v2_t *p_cp,
+                                            OPJ_UINT32 p_tileno,
+                                            OPJ_INT32 p_tx0,
+                                            OPJ_INT32 p_tx1,
+                                            OPJ_INT32 p_ty0,
+                                            OPJ_INT32 p_ty1,
+                                            OPJ_UINT32 p_max_prec,
+                                            OPJ_UINT32 p_max_res,
+                                            OPJ_UINT32 p_dx_min,
+                                            OPJ_UINT32 p_dy_min)
 {
-       /* loop */
-       OPJ_UINT32  compno, resno;
-       /* pointers */
-       const opj_tcp_v2_t *l_tcp = 00;
-       const opj_tccp_t * l_tccp = 00;
-       const opj_image_comp_t * l_img_comp = 00;
+       /* loop*/
+       OPJ_UINT32 pino;
+       /* tile coding parameter*/
+       opj_tcp_v2_t *l_tcp = 00;
+       /* current poc being updated*/
+       opj_poc_t * l_current_poc = 00;
 
-       /* position in x and y of tile */
-       OPJ_UINT32 p, q;
+       /* number of pocs*/
+       OPJ_UINT32 l_poc_bound;
 
-       /* preconditions */
+       /* preconditions in debug*/
        assert(p_cp != 00);
-       assert(p_image != 00);
        assert(p_tileno < p_cp->tw * p_cp->th);
 
-       /* initializations */
+       /* initializations*/
        l_tcp = &p_cp->tcps [p_tileno];
-       l_img_comp = p_image->comps;
-       l_tccp = l_tcp->tccps;
-
-       /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
-       p = p_tileno % p_cp->tw;
-       q = p_tileno / p_cp->tw;
+       /* number of iterations in the loop */
+       l_poc_bound = l_tcp->numpocs+1;
 
-       /* find extent of tile */
-       *p_tx0 = int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
-       *p_tx1 = int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
-       *p_ty0 = int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
-       *p_ty1 = int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
+       /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
+          store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
+       l_current_poc = l_tcp->pocs;
 
-       /* max precision is 0 (can only grow) */
-       *p_max_prec = 0;
-       *p_max_res = 0;
+       l_current_poc->compS = l_current_poc->compno0;
+       l_current_poc->compE = l_current_poc->compno1;
+       l_current_poc->resS = l_current_poc->resno0;
+       l_current_poc->resE = l_current_poc->resno1;
+       l_current_poc->layE = l_current_poc->layno1;
 
-       /* take the largest value for dx_min and dy_min */
-       *p_dx_min = 0x7fffffff;
-       *p_dy_min  = 0x7fffffff;
+       /* special treatment for the first element*/
+       l_current_poc->layS = 0;
+       l_current_poc->prg  = l_current_poc->prg1;
+       l_current_poc->prcS = 0;
 
-       for (compno = 0; compno < p_image->numcomps; ++compno) {
-               /* arithmetic 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_pdx, l_pdy;
-               OPJ_UINT32 l_pw, l_ph;
-               OPJ_UINT32 l_product;
-               OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
+       l_current_poc->prcE = p_max_prec;
+       l_current_poc->txS = p_tx0;
+       l_current_poc->txE = p_tx1;
+       l_current_poc->tyS = p_ty0;
+       l_current_poc->tyE = p_ty1;
+       l_current_poc->dx = p_dx_min;
+       l_current_poc->dy = p_dy_min;
 
-               l_tcx0 = int_ceildiv(*p_tx0, l_img_comp->dx);
-               l_tcy0 = int_ceildiv(*p_ty0, l_img_comp->dy);
-               l_tcx1 = int_ceildiv(*p_tx1, l_img_comp->dx);
-               l_tcy1 = int_ceildiv(*p_ty1, l_img_comp->dy);
+       ++ l_current_poc;
+       for (pino = 1;pino < l_poc_bound ; ++pino) {
+               l_current_poc->compS = l_current_poc->compno0;
+               l_current_poc->compE= l_current_poc->compno1;
+               l_current_poc->resS = l_current_poc->resno0;
+               l_current_poc->resE = l_current_poc->resno1;
+               l_current_poc->layE = l_current_poc->layno1;
+               l_current_poc->prg  = l_current_poc->prg1;
+               l_current_poc->prcS = 0;
+               /* special treatment here different from the first element*/
+               l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
 
-               if (l_tccp->numresolutions > *p_max_res) {
-                       *p_max_res = l_tccp->numresolutions;
-               }
+               l_current_poc->prcE = p_max_prec;
+               l_current_poc->txS = p_tx0;
+               l_current_poc->txE = p_tx1;
+               l_current_poc->tyS = p_ty0;
+               l_current_poc->tyE = p_ty1;
+               l_current_poc->dx = p_dx_min;
+               l_current_poc->dy = p_dy_min;
+               ++ l_current_poc;
+       }
+}
 
-               /* use custom size for precincts */
-               for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
-                       OPJ_UINT32 l_dx, l_dy;
+void opj_pi_update_encode_not_poc (    opj_cp_v2_t *p_cp,
+                                    OPJ_UINT32 p_num_comps,
+                                    OPJ_UINT32 p_tileno,
+                                    OPJ_INT32 p_tx0,
+                                    OPJ_INT32 p_tx1,
+                                    OPJ_INT32 p_ty0,
+                                    OPJ_INT32 p_ty1,
+                                    OPJ_UINT32 p_max_prec,
+                                    OPJ_UINT32 p_max_res,
+                                    OPJ_UINT32 p_dx_min,
+                                    OPJ_UINT32 p_dy_min)
+{
+       /* loop*/
+       OPJ_UINT32 pino;
+       /* tile coding parameter*/
+       opj_tcp_v2_t *l_tcp = 00;
+       /* current poc being updated*/
+       opj_poc_t * l_current_poc = 00;
+       /* number of pocs*/
+       OPJ_UINT32 l_poc_bound;
 
-                       /* precinct width and height */
-                       l_pdx = l_tccp->prcw[resno];
-                       l_pdy = l_tccp->prch[resno];
+       /* preconditions in debug*/
+       assert(p_cp != 00);
+       assert(p_tileno < p_cp->tw * p_cp->th);
 
-                       l_dx = l_img_comp->dx * (1 << (l_pdx + l_tccp->numresolutions - 1 - resno));
-                       l_dy = l_img_comp->dy * (1 << (l_pdy + l_tccp->numresolutions - 1 - resno));
+       /* initializations*/
+       l_tcp = &p_cp->tcps [p_tileno];
 
-                       /* take the minimum size for dx for each comp and resolution */
-                       *p_dx_min = uint_min(*p_dx_min, l_dx);
-                       *p_dy_min = uint_min(*p_dy_min, l_dy);
+       /* number of iterations in the loop */
+       l_poc_bound = l_tcp->numpocs+1;
 
-                       /* various calculations of extents */
-                       l_level_no = l_tccp->numresolutions - 1 - resno;
+       /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
+          store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
+       l_current_poc = l_tcp->pocs;
 
-                       l_rx0 = int_ceildivpow2(l_tcx0, l_level_no);
-                       l_ry0 = int_ceildivpow2(l_tcy0, l_level_no);
-                       l_rx1 = int_ceildivpow2(l_tcx1, l_level_no);
-                       l_ry1 = int_ceildivpow2(l_tcy1, l_level_no);
-
-                       l_px0 = int_floordivpow2(l_rx0, l_pdx) << l_pdx;
-                       l_py0 = int_floordivpow2(l_ry0, l_pdy) << l_pdy;
-                       l_px1 = int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
-
-                       py1 = int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
-
-                       l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
-                       l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
-
-                       l_product = l_pw * l_ph;
-
-                       /* update precision */
-                       if (l_product > *p_max_prec) {
-                               *p_max_prec = l_product;
-                       }
-               }
-               ++l_img_comp;
-               ++l_tccp;
+       for (pino = 0; pino < l_poc_bound ; ++pino) {
+               l_current_poc->compS = 0;
+               l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
+               l_current_poc->resS = 0;
+               l_current_poc->resE = p_max_res;
+               l_current_poc->layS = 0;
+               l_current_poc->layE = l_tcp->numlayers;
+               l_current_poc->prg  = l_tcp->prg;
+               l_current_poc->prcS = 0;
+               l_current_poc->prcE = p_max_prec;
+               l_current_poc->txS = p_tx0;
+               l_current_poc->txE = p_tx1;
+               l_current_poc->tyS = p_ty0;
+               l_current_poc->tyE = p_ty1;
+               l_current_poc->dx = p_dx_min;
+               l_current_poc->dy = p_dy_min;
+               ++ l_current_poc;
        }
 }
 
-
-void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
-                                        const opj_cp_v2_t *p_cp,
-                                        OPJ_UINT32 tileno,
-                                        OPJ_INT32 * p_tx0,
-                                        OPJ_INT32 * p_tx1,
-                                        OPJ_INT32 * p_ty0,
-                                        OPJ_INT32 * p_ty1,
-                                        OPJ_UINT32 * p_dx_min,
-                                        OPJ_UINT32 * p_dy_min,
-                                        OPJ_UINT32 * p_max_prec,
-                                        OPJ_UINT32 * p_max_res,
-                                        OPJ_UINT32 ** p_resolutions )
+void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
+                               opj_tcp_v2_t * p_tcp,
+                               OPJ_UINT32 p_max_precision,
+                               OPJ_UINT32 p_max_res)
 {
        /* loop*/
-       OPJ_UINT32 compno, resno;
-
-       /* pointers*/
-       const opj_tcp_v2_t *tcp = 00;
-       const opj_tccp_t * l_tccp = 00;
-       const opj_image_comp_t * l_img_comp = 00;
+       OPJ_UINT32 pino;
 
-       /* to store l_dx, l_dy, w and h for each resolution and component.*/
-       OPJ_UINT32 * lResolutionPtr;
+       /* encoding prameters to set*/
+       OPJ_UINT32 l_bound;
 
-       /* position in x and y of tile*/
-       OPJ_UINT32 p, q;
+       opj_pi_iterator_t * l_current_pi = 00;
+       opj_poc_t* l_current_poc = 0;
 
        /* preconditions in debug*/
-       assert(p_cp != 00);
-       assert(p_image != 00);
-       assert(tileno < p_cp->tw * p_cp->th);
+       assert(p_pi != 00);
+       assert(p_tcp != 00);
 
        /* 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 */
-       *p_tx0 = int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
-       *p_tx1 = int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
-       *p_ty0 = int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
-       *p_ty1 = int_min(p_cp->ty0 + (q + 1) * 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 = int_ceildiv(*p_tx0, l_img_comp->dx);
-               l_tcy0 = int_ceildiv(*p_ty0, l_img_comp->dy);
-               l_tcx1 = int_ceildiv(*p_tx1, l_img_comp->dx);
-               l_tcy1 = int_ceildiv(*p_ty1, 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 - 1;
-               for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
-                       OPJ_UINT32 l_dx, l_dy;
-
-                       /* 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 * (1 << (l_pdx + l_level_no));
-                       l_dy = l_img_comp->dy * (1 << (l_pdy + l_level_no));
-                       /* take the minimum size for l_dx for each comp and resolution*/
-                       *p_dx_min = int_min(*p_dx_min, l_dx);
-                       *p_dy_min = int_min(*p_dy_min, l_dy);
+       l_bound = p_tcp->numpocs+1;
+       l_current_pi = p_pi;
+       l_current_poc = p_tcp->pocs;
 
-                       /* various calculations of extents*/
-                       l_rx0 = int_ceildivpow2(l_tcx0, l_level_no);
-                       l_ry0 = int_ceildivpow2(l_tcy0, l_level_no);
-                       l_rx1 = int_ceildivpow2(l_tcx1, l_level_no);
-                       l_ry1 = int_ceildivpow2(l_tcy1, l_level_no);
-                       l_px0 = int_floordivpow2(l_rx0, l_pdx) << l_pdx;
-                       l_py0 = int_floordivpow2(l_ry0, l_pdy) << l_pdy;
-                       l_px1 = int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
-                       py1 = int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
-                       l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
-                       l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
-                       *lResolutionPtr++ = l_pw;
-                       *lResolutionPtr++ = l_ph;
-                       l_product = l_pw * l_ph;
-                       
-            /* update precision*/
-                       if (l_product > *p_max_prec) {
-                               *p_max_prec = l_product;
-                       }
+       for     (pino = 0;pino<l_bound;++pino) {
+               l_current_pi->poc.prg = l_current_poc->prg;
+               l_current_pi->first = 1;
 
-                       --l_level_no;
-               }
-               ++l_tccp;
-               ++l_img_comp;
+               l_current_pi->poc.resno0 = l_current_poc->resno0;
+               l_current_pi->poc.compno0 = l_current_poc->compno0;
+               l_current_pi->poc.layno0 = 0;
+               l_current_pi->poc.precno0 = 0;
+               l_current_pi->poc.resno1 = l_current_poc->resno1;
+               l_current_pi->poc.compno1 = l_current_poc->compno1;
+               l_current_pi->poc.layno1 = l_current_poc->layno1;
+               l_current_pi->poc.precno1 = p_max_precision;
+               ++l_current_pi;
+               ++l_current_poc;
        }
 }
 
-opj_pi_iterator_t * opj_pi_create(     const opj_image_t *image,
-                                    const opj_cp_v2_t *cp,
-                                    OPJ_UINT32 tileno )
+void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
+                                   opj_tcp_v2_t * p_tcp,
+                                   OPJ_UINT32 p_max_precision,
+                                   OPJ_UINT32 p_max_res)
 {
        /* loop*/
-       OPJ_UINT32 pino, compno;
-       /* number of poc in the p_pi*/
-       OPJ_UINT32 l_poc_bound;
-
-       /* pointers to tile coding parameters and components.*/
-       opj_pi_iterator_t *l_pi = 00;
-       opj_tcp_v2_t *tcp = 00;
-       const opj_tccp_t *tccp = 00;
+       OPJ_UINT32 pino;
 
-       /* current packet iterator being allocated*/
-       opj_pi_iterator_t *l_current_pi = 00;
+       /* encoding prameters to set*/
+       OPJ_UINT32 l_bound;
 
+       opj_pi_iterator_t * l_current_pi = 00;
        /* preconditions in debug*/
-       assert(cp != 00);
-       assert(image != 00);
-       assert(tileno < cp->tw * cp->th);
+       assert(p_tcp != 00);
+       assert(p_pi != 00);
 
        /* initializations*/
-       tcp = &cp->tcps[tileno];
-       l_poc_bound = tcp->numpocs+1;
+       l_bound = p_tcp->numpocs+1;
+       l_current_pi = p_pi;
 
-       /* memory allocations*/
-       l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
-       if (!l_pi) {
-               return NULL;
+       for (pino = 0;pino<l_bound;++pino) {
+               l_current_pi->poc.prg = p_tcp->prg;
+               l_current_pi->first = 1;
+               l_current_pi->poc.resno0 = 0;
+               l_current_pi->poc.compno0 = 0;
+               l_current_pi->poc.layno0 = 0;
+               l_current_pi->poc.precno0 = 0;
+               l_current_pi->poc.resno1 = p_max_res;
+               l_current_pi->poc.compno1 = l_current_pi->numcomps;
+               l_current_pi->poc.layno1 = p_tcp->numlayers;
+               l_current_pi->poc.precno1 = p_max_precision;
+               ++l_current_pi;
        }
-       memset(l_pi,0,l_poc_bound * sizeof(opj_pi_iterator_t));
-
-       l_current_pi = l_pi;
-       for (pino = 0; pino < l_poc_bound ; ++pino) {
-
-               l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
-               if (! l_current_pi->comps) {
-                       opj_pi_destroy(l_pi, l_poc_bound);
-                       return NULL;
-               }
-
-               l_current_pi->numcomps = image->numcomps;
-               memset(l_current_pi->comps,0,image->numcomps * sizeof(opj_pi_comp_t));
-
-               for (compno = 0; compno < image->numcomps; ++compno) {
-                       opj_pi_comp_t *comp = &l_current_pi->comps[compno];
+}
 
-                       tccp = &tcp->tccps[compno];
 
-                       comp->resolutions = (opj_pi_resolution_t*) opj_malloc(tccp->numresolutions * sizeof(opj_pi_resolution_t));
-                       if (!comp->resolutions) {
-                               opj_pi_destroy(l_pi, l_poc_bound);
-                               return 00;
-                       }
 
-                       comp->numresolutions = tccp->numresolutions;
-                       memset(comp->resolutions,0,tccp->numresolutions * sizeof(opj_pi_resolution_t));
-               }
-               ++l_current_pi;
-       }
-       return l_pi;
-}
+opj_bool opj_pi_check_next_level(      OPJ_INT32 pos,
+                                                               opj_cp_v2_t *cp,
+                                                               OPJ_UINT32 tileno,
+                                                               OPJ_UINT32 pino,
+                                                               const OPJ_CHAR *prog)
+{
+       OPJ_INT32 i;
+       opj_tcp_v2_t *tcps =&cp->tcps[tileno];
+       opj_poc_t *tcp = &tcps->pocs[pino];
 
-void opj_pi_update_encode_poc_and_final (   opj_cp_v2_t *p_cp,
-                                            OPJ_UINT32 p_tileno,
-                                            OPJ_INT32 p_tx0,
-                                            OPJ_INT32 p_tx1,
-                                            OPJ_INT32 p_ty0,
-                                            OPJ_INT32 p_ty1,
-                                            OPJ_UINT32 p_max_prec,
-                                            OPJ_UINT32 p_max_res,
-                                            OPJ_UINT32 p_dx_min,
-                                            OPJ_UINT32 p_dy_min)
+       if(pos>=0){
+               for(i=pos;pos>=0;i--){
+                       switch(prog[i]){
+                   case 'R':
+                           if(tcp->res_t==tcp->resE){
+                                   if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
+                                           return OPJ_TRUE;
+                                   }else{
+                                           return OPJ_FALSE;
+                                   }
+                           }else{
+                                   return OPJ_TRUE;
+                           }
+                           break;
+                   case 'C':
+                           if(tcp->comp_t==tcp->compE){
+                                   if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
+                                           return OPJ_TRUE;
+                                   }else{
+                                           return OPJ_FALSE;
+                                   }
+                           }else{
+                                   return OPJ_TRUE;
+                           }
+                           break;
+                   case 'L':
+                           if(tcp->lay_t==tcp->layE){
+                                   if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
+                                           return OPJ_TRUE;
+                                   }else{
+                                           return OPJ_FALSE;
+                                   }
+                           }else{
+                                   return OPJ_TRUE;
+                           }
+                           break;
+                   case 'P':
+                           switch(tcp->prg){
+                                   case LRCP||RLCP:
+                                           if(tcp->prc_t == tcp->prcE){
+                                                   if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+                                                           return OPJ_TRUE;
+                                                   }else{
+                                                           return OPJ_FALSE;
+                                                   }
+                                           }else{
+                                                   return OPJ_TRUE;
+                                           }
+                                           break;
+                           default:
+                                   if(tcp->tx0_t == tcp->txE){
+                                           /*TY*/
+                                           if(tcp->ty0_t == tcp->tyE){
+                                                   if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+                                                           return OPJ_TRUE;
+                                                   }else{
+                                                           return OPJ_FALSE;
+                                                   }
+                                           }else{
+                                                   return OPJ_TRUE;
+                                           }/*TY*/
+                                   }else{
+                                           return OPJ_TRUE;
+                                   }
+                                   break;
+                           }/*end case P*/
+                   }/*end switch*/
+               }/*end for*/
+       }/*end if*/
+       return OPJ_FALSE;
+}
+
+
+/*
+==========================================================
+   Packet iterator interface
+==========================================================
+*/
+opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
+                                                                               opj_cp_v2_t *p_cp,
+                                                                               OPJ_UINT32 p_tile_no)
 {
-       /* loop*/
+       /* loop */
        OPJ_UINT32 pino;
-       /* tile coding parameter*/
-       opj_tcp_v2_t *l_tcp = 00;
-       /* current poc being updated*/
-       opj_poc_t * l_current_poc = 00;
+       OPJ_UINT32 compno, resno;
 
-       /* number of pocs*/
-       OPJ_UINT32 l_poc_bound;
+       /* to store w, h, dx and dy fro all components and resolutions */
+       OPJ_UINT32 * l_tmp_data;
+       OPJ_UINT32 ** l_tmp_ptr;
 
-       /* preconditions in debug*/
+       /* 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_tileno < p_cp->tw * p_cp->th);
+       assert(p_image != 00);
+       assert(p_tile_no < p_cp->tw * p_cp->th);
 
-       /* initializations*/
-       l_tcp = &p_cp->tcps [p_tileno];
-       /* number of iterations in the loop */
-       l_poc_bound = l_tcp->numpocs+1;
+       /* initializations */
+       l_tcp = &p_cp->tcps[p_tile_no];
+       l_bound = l_tcp->numpocs+1;
 
-       /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
-          store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
-       l_current_poc = l_tcp->pocs;
+       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;
+       }
 
-       l_current_poc->compS = l_current_poc->compno0;
-       l_current_poc->compE = l_current_poc->compno1;
-       l_current_poc->resS = l_current_poc->resno0;
-       l_current_poc->resE = l_current_poc->resno1;
-       l_current_poc->layE = l_current_poc->layno1;
+       /* 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;
+       }
 
-       /* special treatment for the first element*/
-       l_current_poc->layS = 0;
-       l_current_poc->prg  = l_current_poc->prg1;
-       l_current_poc->prcS = 0;
+       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);
 
-       l_current_poc->prcE = p_max_prec;
-       l_current_poc->txS = p_tx0;
-       l_current_poc->txE = p_tx1;
-       l_current_poc->tyS = p_ty0;
-       l_current_poc->tyE = p_ty1;
-       l_current_poc->dx = p_dx_min;
-       l_current_poc->dy = p_dy_min;
+       /* 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;
 
-       ++ l_current_poc;
-       for (pino = 1;pino < l_poc_bound ; ++pino) {
-               l_current_poc->compS = l_current_poc->compno0;
-               l_current_poc->compE= l_current_poc->compno1;
-               l_current_poc->resS = l_current_poc->resno0;
-               l_current_poc->resE = l_current_poc->resno1;
-               l_current_poc->layE = l_current_poc->layno1;
-               l_current_poc->prg  = l_current_poc->prg1;
-               l_current_poc->prcS = 0;
-               /* special treatment here different from the first element*/
-               l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
+       /* set values for first packet iterator */
+       l_current_pi = l_pi;
 
-               l_current_poc->prcE = p_max_prec;
-               l_current_poc->txS = p_tx0;
-               l_current_poc->txE = p_tx1;
-               l_current_poc->tyS = p_ty0;
-               l_current_poc->tyE = p_ty1;
-               l_current_poc->dx = p_dx_min;
-               l_current_poc->dy = p_dy_min;
-               ++ l_current_poc;
+       /* memory allocation for include */
+       l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * 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 + 1) * l_step_l* sizeof(OPJ_INT16));
 
-void opj_pi_update_encode_not_poc (    opj_cp_v2_t *p_cp,
-                                    OPJ_UINT32 p_num_comps,
-                                    OPJ_UINT32 p_tileno,
-                                    OPJ_INT32 p_tx0,
-                                    OPJ_INT32 p_tx1,
-                                    OPJ_INT32 p_ty0,
-                                    OPJ_INT32 p_ty1,
-                                    OPJ_UINT32 p_max_prec,
-                                    OPJ_UINT32 p_max_res,
-                                    OPJ_UINT32 p_dx_min,
-                                    OPJ_UINT32 p_dy_min)
-{
-       /* loop*/
-       OPJ_UINT32 pino;
-       /* tile coding parameter*/
-       opj_tcp_v2_t *l_tcp = 00;
-       /* current poc being updated*/
-       opj_poc_t * l_current_poc = 00;
-       /* number of pocs*/
-       OPJ_UINT32 l_poc_bound;
+       /* 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;
 
-       /* preconditions in debug*/
-       assert(p_cp != 00);
-       assert(p_tileno < p_cp->tw * p_cp->th);
+       l_current_pi->tx0 = l_tx0;
+       l_current_pi->ty0 = l_ty0;
+       l_current_pi->tx1 = l_tx1;
+       l_current_pi->ty1 = l_ty1;
 
-       /* initializations*/
-       l_tcp = &p_cp->tcps [p_tileno];
+       /*l_current_pi->dx = l_img_comp->dx;*/
+       /*l_current_pi->dy = l_img_comp->dy;*/
 
-       /* number of iterations in the loop */
-       l_poc_bound = l_tcp->numpocs+1;
+       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;
 
-       /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
-          store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
-       l_current_poc = l_tcp->pocs;
+       /* 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];
 
-       for (pino = 0; pino < l_poc_bound ; ++pino) {
-               l_current_poc->compS = 0;
-               l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
-               l_current_poc->resS = 0;
-               l_current_poc->resE = p_max_res;
-               l_current_poc->layS = 0;
-               l_current_poc->layE = l_tcp->numlayers;
-               l_current_poc->prg  = l_tcp->prg;
-               l_current_poc->prcS = 0;
-               l_current_poc->prcE = p_max_prec;
-               l_current_poc->txS = p_tx0;
-               l_current_poc->txE = p_tx1;
-               l_current_poc->tyS = p_ty0;
-               l_current_poc->tyE = p_ty1;
-               l_current_poc->dx = p_dx_min;
-               l_current_poc->dy = p_dy_min;
-               ++ l_current_poc;
+               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;
 
-void opj_pi_destroy(opj_pi_iterator_t *p_pi,
-                    OPJ_UINT32 p_nb_elements)
-{
-       OPJ_UINT32 compno, pino;
-       opj_pi_iterator_t *l_current_pi = p_pi;
-       if
-               (p_pi)
-       {
-               if
-                       (p_pi->include)
-               {
-                       opj_free(p_pi->include);
-                       p_pi->include = 00;
-               }
-               /* TODO*/
+               /* allocation for components and number of components has already been calculated by opj_pi_create */
                for
-                       (pino = 0; pino < p_nb_elements; ++pino)
+                       (compno = 0; compno < l_current_pi->numcomps; ++compno)
                {
-                       if
-                               (l_current_pi->comps)
+                       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++)
                        {
-                               opj_pi_comp_t *l_current_component = l_current_pi->comps;
-                               for
-                                       (compno = 0; compno < l_current_pi->numcomps; compno++)
-                               {
-                                       if
-                                               (l_current_component->resolutions)
-                                       {
-                                               opj_free(l_current_component->resolutions);
-                                               l_current_component->resolutions = 00;
-                                       }
-                                       ++l_current_component;
-                               }
-                               opj_free(l_current_pi->comps);
-                               l_current_pi->comps = 0;
+                               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_pi;
+                       ++l_current_comp;
+                       ++l_img_comp;
+                       ++l_tccp;
                }
-               opj_free(p_pi);
+               /* 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)
+       {
+               opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
+       }
+       else
+       {
+               opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
        }
+       return l_pi;
 }
 
-void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
-                               opj_tcp_v2_t * p_tcp,
-                               OPJ_UINT32 p_max_precision,
-                               OPJ_UINT32 p_max_res)
+
+
+opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
+                                            opj_cp_v2_t *p_cp,
+                                            OPJ_UINT32 p_tile_no,
+                                            J2K_T2_MODE p_t2_mode )
 {
        /* 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_poc_t* l_current_poc = 0;
+       OPJ_UINT32 * l_encoding_value_ptr = 00;
 
        /* preconditions in debug*/
-       assert(p_pi != 00);
-       assert(p_tcp != 00);
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(p_tile_no < p_cp->tw * p_cp->th);
 
        /* initializations*/
-       l_bound = p_tcp->numpocs+1;
-       l_current_pi = p_pi;
-       l_current_poc = p_tcp->pocs;
+       l_tcp = &p_cp->tcps[p_tile_no];
+       l_bound = l_tcp->numpocs+1;
 
-       for
-               (pino = 0;pino<l_bound;++pino)
-       {
-               l_current_pi->poc.prg = l_current_poc->prg;
-               l_current_pi->first = 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_current_pi->poc.resno0 = l_current_poc->resno0;
-               l_current_pi->poc.compno0 = l_current_poc->compno0;
-               l_current_pi->poc.layno0 = 0;
-               l_current_pi->poc.precno0 = 0;
-               l_current_pi->poc.resno1 = l_current_poc->resno1;
-               l_current_pi->poc.compno1 = l_current_poc->compno1;
-               l_current_pi->poc.layno1 = l_current_poc->layno1;
-               l_current_pi->poc.precno1 = p_max_precision;
-               ++l_current_pi;
-               ++l_current_poc;
+       l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
+               p_image->numcomps * sizeof(OPJ_UINT32 *));
+       if (! l_tmp_ptr) {
+               opj_free(l_tmp_data);
+               return 00;
        }
-}
 
-void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
-                                   opj_tcp_v2_t * p_tcp,
-                                   OPJ_UINT32 p_max_precision,
-                                   OPJ_UINT32 p_max_res)
-{
-       /* loop*/
-       OPJ_UINT32 pino;
+       /* 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;
+       }
 
-       /* encoding prameters to set*/
-       OPJ_UINT32 l_bound;
+       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;
+       }
 
-       opj_pi_iterator_t * l_current_pi = 00;
-       /* preconditions in debug*/
-       assert(p_tcp != 00);
-       assert(p_pi != 00);
+       /* 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);
 
-       /* initializations*/
-       l_bound = p_tcp->numpocs+1;
-       l_current_pi = p_pi;
+       /* 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;
 
-       for
-               (pino = 0;pino<l_bound;++pino)
-       {
-               l_current_pi->poc.prg = p_tcp->prg;
-               l_current_pi->first = 1;
-               l_current_pi->poc.resno0 = 0;
-               l_current_pi->poc.compno0 = 0;
-               l_current_pi->poc.layno0 = 0;
-               l_current_pi->poc.precno0 = 0;
-               l_current_pi->poc.resno1 = p_max_res;
-               l_current_pi->poc.compno1 = l_current_pi->numcomps;
-               l_current_pi->poc.layno1 = p_tcp->numlayers;
-               l_current_pi->poc.precno1 = p_max_precision;
+       /* 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;
 }
 
 void opj_pi_create_encode(     opj_pi_iterator_t *pi,
@@ -1558,7 +1544,7 @@ void opj_pi_create_encode(        opj_pi_iterator_t *pi,
        pi[pino].first = 1;
        pi[pino].poc.prg = tcp->prg;
 
-       if(!(cp->m_specific_param.m_enc.m_tp_on&& ((!cp->m_specific_param.m_enc.m_cinema && (t2_mode == FINAL_PASS)) || cp->m_specific_param.m_enc.m_cinema))){
+       if(!(cp->m_specific_param.m_enc.m_tp_on && ((!cp->m_specific_param.m_enc.m_cinema && (t2_mode == FINAL_PASS)) || cp->m_specific_param.m_enc.m_cinema))){
                pi[pino].poc.resno0 = tcp->resS;
                pi[pino].poc.resno1 = tcp->resE;
                pi[pino].poc.compno0 = tcp->compS;
@@ -1588,208 +1574,208 @@ void opj_pi_create_encode(    opj_pi_iterator_t *pi,
                                break;
                        case 'P':
                                switch(tcp->prg){
+                               case LRCP:
+                               case RLCP:
+                                       pi[pino].poc.precno0 = tcp->prcS;
+                                       pi[pino].poc.precno1 = tcp->prcE;
+                                       break;
+                               default:
+                                       pi[pino].poc.tx0 = tcp->txS;
+                                       pi[pino].poc.ty0 = tcp->tyS;
+                                       pi[pino].poc.tx1 = tcp->txE;
+                                       pi[pino].poc.ty1 = tcp->tyE;
+                                       break;
+                               }
+                               break;
+                       }
+               }
+
+               if(tpnum==0){
+                       for(i=tppos;i>=0;i--){
+                               switch(prog[i]){
+                               case 'C':
+                                       tcp->comp_t = tcp->compS;
+                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                       tcp->comp_t+=1;
+                                       break;
+                               case 'R':
+                                       tcp->res_t = tcp->resS;
+                                       pi[pino].poc.resno0 = tcp->res_t;
+                                       pi[pino].poc.resno1 = tcp->res_t+1;
+                                       tcp->res_t+=1;
+                                       break;
+                               case 'L':
+                                       tcp->lay_t = tcp->layS;
+                                       pi[pino].poc.layno0 = tcp->lay_t;
+                                       pi[pino].poc.layno1 = tcp->lay_t+1;
+                                       tcp->lay_t+=1;
+                                       break;
+                               case 'P':
+                                       switch(tcp->prg){
                                        case LRCP:
                                        case RLCP:
-                                               pi[pino].poc.precno0 = tcp->prcS;
-                                               pi[pino].poc.precno1 = tcp->prcE;
+                                               tcp->prc_t = tcp->prcS;
+                                               pi[pino].poc.precno0 = tcp->prc_t;
+                                               pi[pino].poc.precno1 = tcp->prc_t+1;
+                                               tcp->prc_t+=1;
                                                break;
                                        default:
-                                               pi[pino].poc.tx0 = tcp->txS;
-                                               pi[pino].poc.ty0 = tcp->tyS;
-                                               pi[pino].poc.tx1 = tcp->txE;
-                                               pi[pino].poc.ty1 = tcp->tyE;
+                                               tcp->tx0_t = tcp->txS;
+                                               tcp->ty0_t = tcp->tyS;
+                                               pi[pino].poc.tx0 = tcp->tx0_t;
+                                               pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
+                                               pi[pino].poc.ty0 = tcp->ty0_t;
+                                               pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                               tcp->tx0_t = pi[pino].poc.tx1;
+                                               tcp->ty0_t = pi[pino].poc.ty1;
                                                break;
+                                       }
+                                       break;
                                }
-                               break;
                        }
-               }
-
-               if(tpnum==0){
+                       incr_top=1;
+               }else{
                        for(i=tppos;i>=0;i--){
                                switch(prog[i]){
-                                               case 'C':
-                                                       tcp->comp_t = tcp->compS;
-                                                       pi[pino].poc.compno0 = tcp->comp_t;
-                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
-                                                       tcp->comp_t+=1;
-                                                       break;
-                                               case 'R':
-                                                       tcp->res_t = tcp->resS;
+                               case 'C':
+                                       pi[pino].poc.compno0 = tcp->comp_t-1;
+                                       pi[pino].poc.compno1 = tcp->comp_t;
+                                       break;
+                               case 'R':
+                                       pi[pino].poc.resno0 = tcp->res_t-1;
+                                       pi[pino].poc.resno1 = tcp->res_t;
+                                       break;
+                               case 'L':
+                                       pi[pino].poc.layno0 = tcp->lay_t-1;
+                                       pi[pino].poc.layno1 = tcp->lay_t;
+                                       break;
+                               case 'P':
+                                       switch(tcp->prg){
+                                       case LRCP:
+                                       case RLCP:
+                                               pi[pino].poc.precno0 = tcp->prc_t-1;
+                                               pi[pino].poc.precno1 = tcp->prc_t;
+                                               break;
+                                       default:
+                                               pi[pino].poc.tx0 = tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx);
+                                               pi[pino].poc.tx1 = tcp->tx0_t ;
+                                               pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
+                                               pi[pino].poc.ty1 = tcp->ty0_t ;
+                                               break;
+                                       }
+                                       break;
+                               }
+                               if(incr_top==1){
+                                       switch(prog[i]){
+                                       case 'R':
+                                               if(tcp->res_t==tcp->resE){
+                                                       if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+                                                               tcp->res_t = tcp->resS;
+                                                               pi[pino].poc.resno0 = tcp->res_t;
+                                                               pi[pino].poc.resno1 = tcp->res_t+1;
+                                                               tcp->res_t+=1;
+                                                               incr_top=1;
+                                                       }else{
+                                                               incr_top=0;
+                                                       }
+                                               }else{
                                                        pi[pino].poc.resno0 = tcp->res_t;
                                                        pi[pino].poc.resno1 = tcp->res_t+1;
                                                        tcp->res_t+=1;
-                                                       break;
-                                               case 'L':
-                                                       tcp->lay_t = tcp->layS;
+                                                       incr_top=0;
+                                               }
+                                               break;
+                                       case 'C':
+                                               if(tcp->comp_t ==tcp->compE){
+                                                       if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+                                                               tcp->comp_t = tcp->compS;
+                                                               pi[pino].poc.compno0 = tcp->comp_t;
+                                                               pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                               tcp->comp_t+=1;
+                                                               incr_top=1;
+                                                       }else{
+                                                               incr_top=0;
+                                                       }
+                                               }else{
+                                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                       tcp->comp_t+=1;
+                                                       incr_top=0;
+                                               }
+                                               break;
+                                       case 'L':
+                                               if(tcp->lay_t == tcp->layE){
+                                                       if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+                                                               tcp->lay_t = tcp->layS;
+                                                               pi[pino].poc.layno0 = tcp->lay_t;
+                                                               pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                               tcp->lay_t+=1;
+                                                               incr_top=1;
+                                                       }else{
+                                                               incr_top=0;
+                                                       }
+                                               }else{
                                                        pi[pino].poc.layno0 = tcp->lay_t;
                                                        pi[pino].poc.layno1 = tcp->lay_t+1;
                                                        tcp->lay_t+=1;
-                                                       break;
-                                               case 'P':
-                                                       switch(tcp->prg){
-                                                               case LRCP:
-                                                               case RLCP:
+                                                       incr_top=0;
+                                               }
+                                               break;
+                                       case 'P':
+                                               switch(tcp->prg){
+                                               case LRCP:
+                                               case RLCP:
+                                                       if(tcp->prc_t == tcp->prcE){
+                                                               if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
                                                                        tcp->prc_t = tcp->prcS;
                                                                        pi[pino].poc.precno0 = tcp->prc_t;
                                                                        pi[pino].poc.precno1 = tcp->prc_t+1;
                                                                        tcp->prc_t+=1;
-                                                                       break;
-                                                               default:
-                                                                       tcp->tx0_t = tcp->txS;
-                                                                       tcp->ty0_t = tcp->tyS;
-                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
-                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
-                                                                       pi[pino].poc.ty0 = tcp->ty0_t;
-                                                                       pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
-                                                                       tcp->tx0_t = pi[pino].poc.tx1;
-                                                                       tcp->ty0_t = pi[pino].poc.ty1;
-                                                                       break;
-                                                       }
-                                                       break;
-                               }
-                       }
-                       incr_top=1;
-               }else{
-                       for(i=tppos;i>=0;i--){
-                               switch(prog[i]){
-                                               case 'C':
-                                                       pi[pino].poc.compno0 = tcp->comp_t-1;
-                                                       pi[pino].poc.compno1 = tcp->comp_t;
-                                                       break;
-                                               case 'R':
-                                                       pi[pino].poc.resno0 = tcp->res_t-1;
-                                                       pi[pino].poc.resno1 = tcp->res_t;
-                                                       break;
-                                               case 'L':
-                                                       pi[pino].poc.layno0 = tcp->lay_t-1;
-                                                       pi[pino].poc.layno1 = tcp->lay_t;
-                                                       break;
-                                               case 'P':
-                                                       switch(tcp->prg){
-                                                               case LRCP:
-                                                               case RLCP:
-                                                                       pi[pino].poc.precno0 = tcp->prc_t-1;
-                                                                       pi[pino].poc.precno1 = tcp->prc_t;
-                                                                       break;
-                                                               default:
-                                                                       pi[pino].poc.tx0 = tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx);
-                                                                       pi[pino].poc.tx1 = tcp->tx0_t ;
-                                                                       pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
-                                                                       pi[pino].poc.ty1 = tcp->ty0_t ;
-                                                                       break;
-                                                       }
-                                                       break;
-                               }
-                               if(incr_top==1){
-                                       switch(prog[i]){
-                                                       case 'R':
-                                                               if(tcp->res_t==tcp->resE){
-                                                                       if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                                               tcp->res_t = tcp->resS;
-                                                                               pi[pino].poc.resno0 = tcp->res_t;
-                                                                               pi[pino].poc.resno1 = tcp->res_t+1;
-                                                                               tcp->res_t+=1;
-                                                                               incr_top=1;
-                                                                       }else{
-                                                                               incr_top=0;
-                                                                       }
+                                                                       incr_top=1;
                                                                }else{
-                                                                       pi[pino].poc.resno0 = tcp->res_t;
-                                                                       pi[pino].poc.resno1 = tcp->res_t+1;
-                                                                       tcp->res_t+=1;
                                                                        incr_top=0;
                                                                }
-                                                               break;
-                                                       case 'C':
-                                                               if(tcp->comp_t ==tcp->compE){
-                                                                       if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                                               tcp->comp_t = tcp->compS;
-                                                                               pi[pino].poc.compno0 = tcp->comp_t;
-                                                                               pi[pino].poc.compno1 = tcp->comp_t+1;
-                                                                               tcp->comp_t+=1;
-                                                                               incr_top=1;
-                                                                       }else{
-                                                                               incr_top=0;
-                                                                       }
-                                                               }else{
-                                                                       pi[pino].poc.compno0 = tcp->comp_t;
-                                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
-                                                                       tcp->comp_t+=1;
-                                                                       incr_top=0;
-                                                               }
-                                                               break;
-                                                       case 'L':
-                                                               if(tcp->lay_t == tcp->layE){
+                                                       }else{
+                                                               pi[pino].poc.precno0 = tcp->prc_t;
+                                                               pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                               tcp->prc_t+=1;
+                                                               incr_top=0;
+                                                       }
+                                                       break;
+                                               default:
+                                                       if(tcp->tx0_t >= tcp->txE){
+                                                               if(tcp->ty0_t >= tcp->tyE){
                                                                        if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                                               tcp->lay_t = tcp->layS;
-                                                                               pi[pino].poc.layno0 = tcp->lay_t;
-                                                                               pi[pino].poc.layno1 = tcp->lay_t+1;
-                                                                               tcp->lay_t+=1;
-                                                                               incr_top=1;
+                                                                               tcp->ty0_t = tcp->tyS;
+                                                                               pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                               pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                               tcp->ty0_t = pi[pino].poc.ty1;
+                                                                               incr_top=1;resetX=1;
                                                                        }else{
-                                                                               incr_top=0;
+                                                                               incr_top=0;resetX=0;
                                                                        }
                                                                }else{
-                                                                       pi[pino].poc.layno0 = tcp->lay_t;
-                                                                       pi[pino].poc.layno1 = tcp->lay_t+1;
-                                                                       tcp->lay_t+=1;
-                                                                       incr_top=0;
+                                                                       pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                       pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                       tcp->ty0_t = pi[pino].poc.ty1;
+                                                                       incr_top=0;resetX=1;
                                                                }
-                                                               break;
-                                                       case 'P':
-                                                               switch(tcp->prg){
-                                                                       case LRCP:
-                                                                       case RLCP:
-                                                                               if(tcp->prc_t == tcp->prcE){
-                                                                                       if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                                                               tcp->prc_t = tcp->prcS;
-                                                                                               pi[pino].poc.precno0 = tcp->prc_t;
-                                                                                               pi[pino].poc.precno1 = tcp->prc_t+1;
-                                                                                               tcp->prc_t+=1;
-                                                                                               incr_top=1;
-                                                                                       }else{
-                                                                                               incr_top=0;
-                                                                                       }
-                                                                               }else{
-                                                                                       pi[pino].poc.precno0 = tcp->prc_t;
-                                                                                       pi[pino].poc.precno1 = tcp->prc_t+1;
-                                                                                       tcp->prc_t+=1;
-                                                                                       incr_top=0;
-                                                                               }
-                                                                               break;
-                                                                       default:
-                                                                               if(tcp->tx0_t >= tcp->txE){
-                                                                                       if(tcp->ty0_t >= tcp->tyE){
-                                                                                               if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                                                                       tcp->ty0_t = tcp->tyS;
-                                                                                                       pi[pino].poc.ty0 = tcp->ty0_t;
-                                                                                                       pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
-                                                                                                       tcp->ty0_t = pi[pino].poc.ty1;
-                                                                                                       incr_top=1;resetX=1;
-                                                                                               }else{
-                                                                                                       incr_top=0;resetX=0;
-                                                                                               }
-                                                                                       }else{
-                                                                                               pi[pino].poc.ty0 = tcp->ty0_t;
-                                                                                               pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
-                                                                                               tcp->ty0_t = pi[pino].poc.ty1;
-                                                                                               incr_top=0;resetX=1;
-                                                                                       }
-                                                                                       if(resetX==1){
-                                                                                               tcp->tx0_t = tcp->txS;
-                                                                                               pi[pino].poc.tx0 = tcp->tx0_t;
-                                                                                               pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
-                                                                                               tcp->tx0_t = pi[pino].poc.tx1;
-                                                                                       }
-                                                                               }else{
-                                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
-                                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
-                                                                                       tcp->tx0_t = pi[pino].poc.tx1;
-                                                                                       incr_top=0;
-                                                                               }
-                                                                               break;
+                                                               if(resetX==1){
+                                                                       tcp->tx0_t = tcp->txS;
+                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
+                                                                       tcp->tx0_t = pi[pino].poc.tx1;
                                                                }
-                                                               break;
+                                                       }else{
+                                                               pi[pino].poc.tx0 = tcp->tx0_t;
+                                                               pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
+                                                               tcp->tx0_t = pi[pino].poc.tx1;
+                                                               incr_top=0;
+                                                       }
+                                                       break;
+                                               }
+                                               break;
                                        }
                                }
                        }
@@ -1797,84 +1783,84 @@ void opj_pi_create_encode(      opj_pi_iterator_t *pi,
        }
 }
 
-opj_bool opj_pi_check_next_level(      OPJ_INT32 pos,
-                                                               opj_cp_v2_t *cp,
-                                                               OPJ_UINT32 tileno,
-                                                               OPJ_UINT32 pino,
-                                                               const OPJ_CHAR *prog)
+void opj_pi_destroy(opj_pi_iterator_t *p_pi,
+                    OPJ_UINT32 p_nb_elements)
 {
-       OPJ_INT32 i;
-       opj_tcp_v2_t *tcps =&cp->tcps[tileno];
-       opj_poc_t *tcp = &tcps->pocs[pino];
+       OPJ_UINT32 compno, pino;
+       opj_pi_iterator_t *l_current_pi = p_pi;
+    if (p_pi) {
+               if (p_pi->include) {
+                       opj_free(p_pi->include);
+                       p_pi->include = 00;
+               }
+               for (pino = 0; pino < p_nb_elements; ++pino){
+                       if(l_current_pi->comps) {
+                               opj_pi_comp_t *l_current_component = l_current_pi->comps;
+                for (compno = 0; compno < l_current_pi->numcomps; compno++){
+                    if(l_current_component->resolutions) {
+                                               opj_free(l_current_component->resolutions);
+                                               l_current_component->resolutions = 00;
+                                       }
 
-       if(pos>=0){
-               for(i=pos;pos>=0;i--){
-                       switch(prog[i]){
-                   case 'R':
-                           if(tcp->res_t==tcp->resE){
-                                   if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
-                                           return OPJ_TRUE;
-                                   }else{
-                                           return OPJ_FALSE;
-                                   }
-                           }else{
-                                   return OPJ_TRUE;
-                           }
-                           break;
-                   case 'C':
-                           if(tcp->comp_t==tcp->compE){
-                                   if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
-                                           return OPJ_TRUE;
-                                   }else{
-                                           return OPJ_FALSE;
-                                   }
-                           }else{
-                                   return OPJ_TRUE;
-                           }
-                           break;
-                   case 'L':
-                           if(tcp->lay_t==tcp->layE){
-                                   if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
-                                           return OPJ_TRUE;
-                                   }else{
-                                           return OPJ_FALSE;
-                                   }
-                           }else{
-                                   return OPJ_TRUE;
-                           }
-                           break;
-                   case 'P':
-                           switch(tcp->prg){
-                                   case LRCP||RLCP:
-                                           if(tcp->prc_t == tcp->prcE){
-                                                   if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                           return OPJ_TRUE;
-                                                   }else{
-                                                           return OPJ_FALSE;
-                                                   }
-                                           }else{
-                                                   return OPJ_TRUE;
-                                           }
-                                           break;
-                           default:
-                                   if(tcp->tx0_t == tcp->txE){
-                                           /*TY*/
-                                           if(tcp->ty0_t == tcp->tyE){
-                                                   if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
-                                                           return OPJ_TRUE;
-                                                   }else{
-                                                           return OPJ_FALSE;
-                                                   }
-                                           }else{
-                                                   return OPJ_TRUE;
-                                           }/*TY*/
-                                   }else{
-                                           return OPJ_TRUE;
-                                   }
-                                   break;
-                           }/*end case P*/
-                   }/*end switch*/
-               }/*end for*/
-       }/*end if*/
-       return OPJ_FALSE;
+                                       ++l_current_component;
+                               }
+                               opj_free(l_current_pi->comps);
+                               l_current_pi->comps = 0;
+                       }
+                       ++l_current_pi;
+               }
+               opj_free(p_pi);
+       }
+}
+
+
+
+void opj_pi_update_encoding_parameters(        const opj_image_t *p_image,
+                                        opj_cp_v2_t *p_cp,
+                                        OPJ_UINT32 p_tile_no )
+{
+       /* encoding parameters 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;
+
+       /* pointers */
+       opj_tcp_v2_t *l_tcp = 00;
+
+       /* preconditions */
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(p_tile_no < p_cp->tw * p_cp->th);
+
+       l_tcp = &(p_cp->tcps[p_tile_no]);
+
+       /* get encoding parameters */
+       opj_get_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);
+
+       if (l_tcp->POC) {
+               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);
+       }
 }
+
+opj_bool opj_pi_next(opj_pi_iterator_t * pi) {
+       switch (pi->poc.prg) {
+               case LRCP:
+                       return opj_pi_next_lrcp(pi);
+               case RLCP:
+                       return opj_pi_next_rlcp(pi);
+               case RPCL:
+                       return opj_pi_next_rpcl(pi);
+               case PCRL:
+                       return opj_pi_next_pcrl(pi);
+               case CPRL:
+                       return opj_pi_next_cprl(pi);
+               case PROG_UNKNOWN:
+                       return OPJ_FALSE;
+       }
+       
+       return OPJ_FALSE;
+}
\ No newline at end of file