diff options
Diffstat (limited to 'third_party/libopenjpeg20/tgt.c')
-rw-r--r-- | third_party/libopenjpeg20/tgt.c | 501 |
1 files changed, 255 insertions, 246 deletions
diff --git a/third_party/libopenjpeg20/tgt.c b/third_party/libopenjpeg20/tgt.c index 5e34aa9129..0cbad12c42 100644 --- a/third_party/libopenjpeg20/tgt.c +++ b/third_party/libopenjpeg20/tgt.c @@ -1,6 +1,6 @@ /* - * The copyright in this software is being made available under the 2-clauses - * BSD License, included below. This software may be subject to other third + * The copyright in this software is being made available under the 2-clauses + * BSD License, included below. This software may be subject to other third * party and contributor rights, including patent rights, and no such rights * are granted under this license. * @@ -8,10 +8,10 @@ * Copyright (c) 2002-2014, Professor Benoit Macq * Copyright (c) 2001-2003, David Janssens * Copyright (c) 2002-2003, Yannick Verschueren - * Copyright (c) 2003-2007, Francois-Olivier Devaux + * Copyright (c) 2003-2007, Francois-Olivier Devaux * Copyright (c) 2003-2014, Antonin Descampe * Copyright (c) 2005, Herve Drolon, FreeImage Team - * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR + * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR * Copyright (c) 2012, CS Systemes d'Information, France * All rights reserved. * @@ -39,87 +39,90 @@ #include "opj_includes.h" -/* +/* ========================================================== Tag-tree coder interface ========================================================== */ -opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv, opj_event_mgr_t *manager) { - OPJ_INT32 nplh[32]; - OPJ_INT32 nplv[32]; - opj_tgt_node_t *node = 00; - opj_tgt_node_t *l_parent_node = 00; - opj_tgt_node_t *l_parent_node0 = 00; - opj_tgt_tree_t *tree = 00; - OPJ_UINT32 i; - OPJ_INT32 j,k; - OPJ_UINT32 numlvls; - OPJ_UINT32 n; - - tree = (opj_tgt_tree_t *) opj_calloc(1,sizeof(opj_tgt_tree_t)); - if(!tree) { - opj_event_msg(manager, EVT_ERROR, "Not enough memory to create Tag-tree\n"); - return 00; - } +opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv, + opj_event_mgr_t *p_manager) +{ + OPJ_INT32 nplh[32]; + OPJ_INT32 nplv[32]; + opj_tgt_node_t *node = 00; + opj_tgt_node_t *l_parent_node = 00; + opj_tgt_node_t *l_parent_node0 = 00; + opj_tgt_tree_t *tree = 00; + OPJ_UINT32 i; + OPJ_INT32 j, k; + OPJ_UINT32 numlvls; + OPJ_UINT32 n; - tree->numleafsh = numleafsh; - tree->numleafsv = numleafsv; + tree = (opj_tgt_tree_t *) opj_calloc(1, sizeof(opj_tgt_tree_t)); + if (!tree) { + opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to create Tag-tree\n"); + return 00; + } - numlvls = 0; - nplh[0] = (OPJ_INT32)numleafsh; - nplv[0] = (OPJ_INT32)numleafsv; - tree->numnodes = 0; - do { - n = (OPJ_UINT32)(nplh[numlvls] * nplv[numlvls]); - nplh[numlvls + 1] = (nplh[numlvls] + 1) / 2; - nplv[numlvls + 1] = (nplv[numlvls] + 1) / 2; - tree->numnodes += n; - ++numlvls; - } while (n > 1); + tree->numleafsh = numleafsh; + tree->numleafsv = numleafsv; - /* ADD */ - if (tree->numnodes == 0) { - opj_free(tree); - opj_event_msg(manager, EVT_WARNING, "tgt_create tree->numnodes == 0, no tree created.\n"); - return 00; - } + numlvls = 0; + nplh[0] = (OPJ_INT32)numleafsh; + nplv[0] = (OPJ_INT32)numleafsv; + tree->numnodes = 0; + do { + n = (OPJ_UINT32)(nplh[numlvls] * nplv[numlvls]); + nplh[numlvls + 1] = (nplh[numlvls] + 1) / 2; + nplv[numlvls + 1] = (nplv[numlvls] + 1) / 2; + tree->numnodes += n; + ++numlvls; + } while (n > 1); - tree->nodes = (opj_tgt_node_t*) opj_calloc(tree->numnodes, sizeof(opj_tgt_node_t)); - if(!tree->nodes) { - opj_event_msg(manager, EVT_ERROR, "Not enough memory to create Tag-tree nodes\n"); - opj_free(tree); - return 00; - } - tree->nodes_size = tree->numnodes * (OPJ_UINT32)sizeof(opj_tgt_node_t); + /* ADD */ + if (tree->numnodes == 0) { + opj_free(tree); + return 00; + } - node = tree->nodes; - l_parent_node = &tree->nodes[tree->numleafsh * tree->numleafsv]; - l_parent_node0 = l_parent_node; + tree->nodes = (opj_tgt_node_t*) opj_calloc(tree->numnodes, + sizeof(opj_tgt_node_t)); + if (!tree->nodes) { + opj_event_msg(p_manager, EVT_ERROR, + "Not enough memory to create Tag-tree nodes\n"); + opj_free(tree); + return 00; + } + tree->nodes_size = tree->numnodes * (OPJ_UINT32)sizeof(opj_tgt_node_t); + + node = tree->nodes; + l_parent_node = &tree->nodes[tree->numleafsh * tree->numleafsv]; + l_parent_node0 = l_parent_node; - for (i = 0; i < numlvls - 1; ++i) { - for (j = 0; j < nplv[i]; ++j) { - k = nplh[i]; - while (--k >= 0) { - node->parent = l_parent_node; - ++node; - if (--k >= 0) { - node->parent = l_parent_node; - ++node; - } - ++l_parent_node; - } - if ((j & 1) || j == nplv[i] - 1) { - l_parent_node0 = l_parent_node; - } else { - l_parent_node = l_parent_node0; - l_parent_node0 += nplh[i]; - } + for (i = 0; i < numlvls - 1; ++i) { + for (j = 0; j < nplv[i]; ++j) { + k = nplh[i]; + while (--k >= 0) { + node->parent = l_parent_node; + ++node; + if (--k >= 0) { + node->parent = l_parent_node; + ++node; } + ++l_parent_node; + } + if ((j & 1) || j == nplv[i] - 1) { + l_parent_node0 = l_parent_node; + } else { + l_parent_node = l_parent_node0; + l_parent_node0 += nplh[i]; + } } - node->parent = 0; - opj_tgt_reset(tree); - return tree; + } + node->parent = 0; + opj_tgt_reset(tree); + return tree; } /** @@ -130,206 +133,212 @@ opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv, opj_e * @param p_num_leafs_v the height of the array of leafs of the tree * @return a new tag-tree if successful, NULL otherwise */ -opj_tgt_tree_t *opj_tgt_init(opj_tgt_tree_t * p_tree,OPJ_UINT32 p_num_leafs_h, OPJ_UINT32 p_num_leafs_v, opj_event_mgr_t *p_manager) +opj_tgt_tree_t *opj_tgt_init(opj_tgt_tree_t * p_tree, OPJ_UINT32 p_num_leafs_h, + OPJ_UINT32 p_num_leafs_v, opj_event_mgr_t *p_manager) { - OPJ_INT32 l_nplh[32]; - OPJ_INT32 l_nplv[32]; - opj_tgt_node_t *l_node = 00; - opj_tgt_node_t *l_parent_node = 00; - opj_tgt_node_t *l_parent_node0 = 00; - OPJ_UINT32 i; - OPJ_INT32 j,k; - OPJ_UINT32 l_num_levels; - OPJ_UINT32 n; - OPJ_UINT32 l_node_size; - - if (! p_tree){ - return 00; + OPJ_INT32 l_nplh[32]; + OPJ_INT32 l_nplv[32]; + opj_tgt_node_t *l_node = 00; + opj_tgt_node_t *l_parent_node = 00; + opj_tgt_node_t *l_parent_node0 = 00; + OPJ_UINT32 i; + OPJ_INT32 j, k; + OPJ_UINT32 l_num_levels; + OPJ_UINT32 n; + OPJ_UINT32 l_node_size; + + if (! p_tree) { + return 00; + } + + if ((p_tree->numleafsh != p_num_leafs_h) || + (p_tree->numleafsv != p_num_leafs_v)) { + p_tree->numleafsh = p_num_leafs_h; + p_tree->numleafsv = p_num_leafs_v; + + l_num_levels = 0; + l_nplh[0] = (OPJ_INT32)p_num_leafs_h; + l_nplv[0] = (OPJ_INT32)p_num_leafs_v; + p_tree->numnodes = 0; + do { + n = (OPJ_UINT32)(l_nplh[l_num_levels] * l_nplv[l_num_levels]); + l_nplh[l_num_levels + 1] = (l_nplh[l_num_levels] + 1) / 2; + l_nplv[l_num_levels + 1] = (l_nplv[l_num_levels] + 1) / 2; + p_tree->numnodes += n; + ++l_num_levels; + } while (n > 1); + + /* ADD */ + if (p_tree->numnodes == 0) { + opj_tgt_destroy(p_tree); + return 00; } + l_node_size = p_tree->numnodes * (OPJ_UINT32)sizeof(opj_tgt_node_t); - if ((p_tree->numleafsh != p_num_leafs_h) || (p_tree->numleafsv != p_num_leafs_v)) { - p_tree->numleafsh = p_num_leafs_h; - p_tree->numleafsv = p_num_leafs_v; - - l_num_levels = 0; - l_nplh[0] = (OPJ_INT32)p_num_leafs_h; - l_nplv[0] = (OPJ_INT32)p_num_leafs_v; - p_tree->numnodes = 0; - do - { - n = (OPJ_UINT32)(l_nplh[l_num_levels] * l_nplv[l_num_levels]); - l_nplh[l_num_levels + 1] = (l_nplh[l_num_levels] + 1) / 2; - l_nplv[l_num_levels + 1] = (l_nplv[l_num_levels] + 1) / 2; - p_tree->numnodes += n; - ++l_num_levels; - } - while (n > 1); + if (l_node_size > p_tree->nodes_size) { + opj_tgt_node_t* new_nodes = (opj_tgt_node_t*) opj_realloc(p_tree->nodes, + l_node_size); + if (! new_nodes) { + opj_event_msg(p_manager, EVT_ERROR, + "Not enough memory to reinitialize the tag tree\n"); + opj_tgt_destroy(p_tree); + return 00; + } + p_tree->nodes = new_nodes; + memset(((char *) p_tree->nodes) + p_tree->nodes_size, 0, + l_node_size - p_tree->nodes_size); + p_tree->nodes_size = l_node_size; + } + l_node = p_tree->nodes; + l_parent_node = &p_tree->nodes[p_tree->numleafsh * p_tree->numleafsv]; + l_parent_node0 = l_parent_node; - /* ADD */ - if (p_tree->numnodes == 0) { - opj_tgt_destroy(p_tree); - return 00; - } - l_node_size = p_tree->numnodes * (OPJ_UINT32)sizeof(opj_tgt_node_t); - - if (l_node_size > p_tree->nodes_size) { - opj_tgt_node_t* new_nodes = (opj_tgt_node_t*) opj_realloc(p_tree->nodes, l_node_size); - if (! new_nodes) { - opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to reinitialize the tag tree\n"); - opj_tgt_destroy(p_tree); - return 00; - } - p_tree->nodes = new_nodes; - memset(((char *) p_tree->nodes) + p_tree->nodes_size, 0 , l_node_size - p_tree->nodes_size); - p_tree->nodes_size = l_node_size; + for (i = 0; i < l_num_levels - 1; ++i) { + for (j = 0; j < l_nplv[i]; ++j) { + k = l_nplh[i]; + while (--k >= 0) { + l_node->parent = l_parent_node; + ++l_node; + if (--k >= 0) { + l_node->parent = l_parent_node; + ++l_node; + } + ++l_parent_node; } - l_node = p_tree->nodes; - l_parent_node = &p_tree->nodes[p_tree->numleafsh * p_tree->numleafsv]; - l_parent_node0 = l_parent_node; - - for (i = 0; i < l_num_levels - 1; ++i) { - for (j = 0; j < l_nplv[i]; ++j) { - k = l_nplh[i]; - while (--k >= 0) { - l_node->parent = l_parent_node; - ++l_node; - if (--k >= 0) { - l_node->parent = l_parent_node; - ++l_node; - } - ++l_parent_node; - } - if ((j & 1) || j == l_nplv[i] - 1) - { - l_parent_node0 = l_parent_node; - } - else - { - l_parent_node = l_parent_node0; - l_parent_node0 += l_nplh[i]; - } - } + if ((j & 1) || j == l_nplv[i] - 1) { + l_parent_node0 = l_parent_node; + } else { + l_parent_node = l_parent_node0; + l_parent_node0 += l_nplh[i]; } - l_node->parent = 0; + } } - opj_tgt_reset(p_tree); + l_node->parent = 0; + } + opj_tgt_reset(p_tree); - return p_tree; + return p_tree; } void opj_tgt_destroy(opj_tgt_tree_t *p_tree) { - if (! p_tree) { - return; - } + if (! p_tree) { + return; + } - if (p_tree->nodes) { - opj_free(p_tree->nodes); - p_tree->nodes = 00; - } - opj_free(p_tree); + if (p_tree->nodes) { + opj_free(p_tree->nodes); + p_tree->nodes = 00; + } + opj_free(p_tree); } -void opj_tgt_reset(opj_tgt_tree_t *p_tree) { - OPJ_UINT32 i; - opj_tgt_node_t * l_current_node = 00;; +void opj_tgt_reset(opj_tgt_tree_t *p_tree) +{ + OPJ_UINT32 i; + opj_tgt_node_t * l_current_node = 00;; - if (! p_tree) { - return; - } + if (! p_tree) { + return; + } - l_current_node = p_tree->nodes; - for (i = 0; i < p_tree->numnodes; ++i) - { - l_current_node->value = 999; - l_current_node->low = 0; - l_current_node->known = 0; - ++l_current_node; - } + l_current_node = p_tree->nodes; + for (i = 0; i < p_tree->numnodes; ++i) { + l_current_node->value = 999; + l_current_node->low = 0; + l_current_node->known = 0; + ++l_current_node; + } } -void opj_tgt_setvalue(opj_tgt_tree_t *tree, OPJ_UINT32 leafno, OPJ_INT32 value) { - opj_tgt_node_t *node; - node = &tree->nodes[leafno]; - while (node && node->value > value) { - node->value = value; - node = node->parent; - } +void opj_tgt_setvalue(opj_tgt_tree_t *tree, OPJ_UINT32 leafno, OPJ_INT32 value) +{ + opj_tgt_node_t *node; + node = &tree->nodes[leafno]; + while (node && node->value > value) { + node->value = value; + node = node->parent; + } } -void opj_tgt_encode(opj_bio_t *bio, opj_tgt_tree_t *tree, OPJ_UINT32 leafno, OPJ_INT32 threshold) { - opj_tgt_node_t *stk[31]; - opj_tgt_node_t **stkptr; - opj_tgt_node_t *node; - OPJ_INT32 low; - - stkptr = stk; - node = &tree->nodes[leafno]; - while (node->parent) { - *stkptr++ = node; - node = node->parent; +void opj_tgt_encode(opj_bio_t *bio, opj_tgt_tree_t *tree, OPJ_UINT32 leafno, + OPJ_INT32 threshold) +{ + opj_tgt_node_t *stk[31]; + opj_tgt_node_t **stkptr; + opj_tgt_node_t *node; + OPJ_INT32 low; + + stkptr = stk; + node = &tree->nodes[leafno]; + while (node->parent) { + *stkptr++ = node; + node = node->parent; + } + + low = 0; + for (;;) { + if (low > node->low) { + node->low = low; + } else { + low = node->low; } - - low = 0; - for (;;) { - if (low > node->low) { - node->low = low; - } else { - low = node->low; - } - - while (low < threshold) { - if (low >= node->value) { - if (!node->known) { - opj_bio_write(bio, 1, 1); - node->known = 1; - } - break; - } - opj_bio_write(bio, 0, 1); - ++low; + + while (low < threshold) { + if (low >= node->value) { + if (!node->known) { + opj_bio_write(bio, 1, 1); + node->known = 1; } - - node->low = low; - if (stkptr == stk) - break; - node = *--stkptr; + break; + } + opj_bio_write(bio, 0, 1); + ++low; + } + + node->low = low; + if (stkptr == stk) { + break; } + node = *--stkptr; + } } -OPJ_UINT32 opj_tgt_decode(opj_bio_t *bio, opj_tgt_tree_t *tree, OPJ_UINT32 leafno, OPJ_INT32 threshold) { - opj_tgt_node_t *stk[31]; - opj_tgt_node_t **stkptr; - opj_tgt_node_t *node; - OPJ_INT32 low; - - stkptr = stk; - node = &tree->nodes[leafno]; - while (node->parent) { - *stkptr++ = node; - node = node->parent; +OPJ_UINT32 opj_tgt_decode(opj_bio_t *bio, opj_tgt_tree_t *tree, + OPJ_UINT32 leafno, OPJ_INT32 threshold) +{ + opj_tgt_node_t *stk[31]; + opj_tgt_node_t **stkptr; + opj_tgt_node_t *node; + OPJ_INT32 low; + + stkptr = stk; + node = &tree->nodes[leafno]; + while (node->parent) { + *stkptr++ = node; + node = node->parent; + } + + low = 0; + for (;;) { + if (low > node->low) { + node->low = low; + } else { + low = node->low; } - - low = 0; - for (;;) { - if (low > node->low) { - node->low = low; - } else { - low = node->low; - } - while (low < threshold && low < node->value) { - if (opj_bio_read(bio, 1)) { - node->value = low; - } else { - ++low; - } - } - node->low = low; - if (stkptr == stk) { - break; - } - node = *--stkptr; + while (low < threshold && low < node->value) { + if (opj_bio_read(bio, 1)) { + node->value = low; + } else { + ++low; + } + } + node->low = low; + if (stkptr == stk) { + break; } - - return (node->value < threshold) ? 1 : 0; + node = *--stkptr; + } + + return (node->value < threshold) ? 1 : 0; } |