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-rw-r--r--third_party/libopenjpeg20/tgt.c335
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diff --git a/third_party/libopenjpeg20/tgt.c b/third_party/libopenjpeg20/tgt.c
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+/*
+ * 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.
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * 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) 2003-2014, Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
+ * Copyright (c) 2012, CS Systemes d'Information, France
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "opj_includes.h"
+
+/*
+==========================================================
+ Tag-tree coder interface
+==========================================================
+*/
+
+opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv) {
+ 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) {
+ fprintf(stderr, "ERROR in tgt_create while allocating tree\n");
+ return 00;
+ }
+
+ tree->numleafsh = numleafsh;
+ tree->numleafsv = numleafsv;
+
+ 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);
+
+ /* ADD */
+ if (tree->numnodes == 0) {
+ opj_free(tree);
+ fprintf(stderr, "WARNING in tgt_create tree->numnodes == 0, no tree created.\n");
+ return 00;
+ }
+
+ tree->nodes = (opj_tgt_node_t*) opj_calloc(tree->numnodes, sizeof(opj_tgt_node_t));
+ if(!tree->nodes) {
+ fprintf(stderr, "ERROR in tgt_create while allocating node of the tree\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];
+ }
+ }
+ }
+ node->parent = 0;
+ opj_tgt_reset(tree);
+ return tree;
+}
+
+/**
+ * Reinitialises a tag-tree from an existing one.
+ *
+ * @param p_tree the tree to reinitialize.
+ * @param p_num_leafs_h the width of the array of leafs of the tree
+ * @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_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 (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) {
+ fprintf(stderr, "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;
+
+ 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];
+ }
+ }
+ }
+ l_node->parent = 0;
+ }
+ opj_tgt_reset(p_tree);
+
+ return p_tree;
+}
+
+void opj_tgt_destroy(opj_tgt_tree_t *p_tree)
+{
+ if (! p_tree) {
+ return;
+ }
+
+ 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;;
+
+ 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;
+ }
+}
+
+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;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ return (node->value < threshold) ? 1 : 0;
+}
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