434 lines
15 KiB
C
434 lines
15 KiB
C
/*
|
|
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
|
|
* Copyright (c) 2002-2007, Professor Benoit Macq
|
|
* Copyright (c) 2001-2003, David Janssens
|
|
* Copyright (c) 2002-2003, Yannick Verschueren
|
|
* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
|
|
* Copyright (c) 2005, Herve Drolon, FreeImage Team
|
|
* 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 *tgt_create(int numleafsh, int numleafsv) {
|
|
int nplh[32];
|
|
int nplv[32];
|
|
opj_tgt_node_t *node = NULL;
|
|
opj_tgt_node_t *parentnode = NULL;
|
|
opj_tgt_node_t *parentnode0 = NULL;
|
|
opj_tgt_tree_t *tree = NULL;
|
|
int i, j, k;
|
|
int numlvls;
|
|
int n;
|
|
|
|
tree = (opj_tgt_tree_t *) opj_malloc(sizeof(opj_tgt_tree_t));
|
|
if(!tree) return NULL;
|
|
tree->numleafsh = numleafsh;
|
|
tree->numleafsv = numleafsv;
|
|
|
|
numlvls = 0;
|
|
nplh[0] = numleafsh;
|
|
nplv[0] = numleafsv;
|
|
tree->numnodes = 0;
|
|
do {
|
|
n = 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);
|
|
return NULL;
|
|
}
|
|
|
|
tree->nodes = (opj_tgt_node_t*) opj_calloc(tree->numnodes, sizeof(opj_tgt_node_t));
|
|
if(!tree->nodes) {
|
|
opj_free(tree);
|
|
return NULL;
|
|
}
|
|
|
|
node = tree->nodes;
|
|
parentnode = &tree->nodes[tree->numleafsh * tree->numleafsv];
|
|
parentnode0 = parentnode;
|
|
|
|
for (i = 0; i < numlvls - 1; ++i) {
|
|
for (j = 0; j < nplv[i]; ++j) {
|
|
k = nplh[i];
|
|
while (--k >= 0) {
|
|
node->parent = parentnode;
|
|
++node;
|
|
if (--k >= 0) {
|
|
node->parent = parentnode;
|
|
++node;
|
|
}
|
|
++parentnode;
|
|
}
|
|
if ((j & 1) || j == nplv[i] - 1) {
|
|
parentnode0 = parentnode;
|
|
} else {
|
|
parentnode = parentnode0;
|
|
parentnode0 += nplh[i];
|
|
}
|
|
}
|
|
}
|
|
node->parent = 0;
|
|
|
|
tgt_reset(tree);
|
|
|
|
return tree;
|
|
}
|
|
|
|
opj_tgt_tree_t *tgt_create_v2(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_malloc(sizeof(opj_tgt_tree_t));
|
|
if(!tree) {
|
|
fprintf(stderr, "ERROR in tgt_create_v2 while allocating tree\n");
|
|
return 00;
|
|
}
|
|
memset(tree,0,sizeof(opj_tgt_tree_t));
|
|
|
|
tree->numleafsh = numleafsh;
|
|
tree->numleafsv = numleafsv;
|
|
|
|
numlvls = 0;
|
|
nplh[0] = numleafsh;
|
|
nplv[0] = numleafsv;
|
|
tree->numnodes = 0;
|
|
do {
|
|
n = 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_v2 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_v2 while allocating node of the tree\n");
|
|
opj_free(tree);
|
|
return 00;
|
|
}
|
|
memset(tree->nodes,0,tree->numnodes * sizeof(opj_tgt_node_t));
|
|
tree->nodes_size = tree->numnodes * 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;
|
|
tgt_reset(tree);
|
|
return tree;
|
|
}
|
|
|
|
/**
|
|
* Reinitialises a tag-tree from an exixting one. (V2 framevork)
|
|
*
|
|
* @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 *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] = p_num_leafs_h;
|
|
l_nplv[0] = p_num_leafs_v;
|
|
p_tree->numnodes = 0;
|
|
do
|
|
{
|
|
n = 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)
|
|
{
|
|
tgt_destroy(p_tree);
|
|
return 00;
|
|
}
|
|
l_node_size = p_tree->numnodes * 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
|
|
(! p_tree->nodes)
|
|
{
|
|
fprintf(stderr, "Not enough memory to reinitialize the tag tree\n");
|
|
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;
|
|
}
|
|
tgt_reset(p_tree);
|
|
|
|
return p_tree;
|
|
}
|
|
|
|
/*void tgt_destroy(opj_tgt_tree_t *tree) {
|
|
opj_free(tree->nodes);
|
|
opj_free(tree);
|
|
}*/
|
|
|
|
void 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 tgt_reset(opj_tgt_tree_t *tree) {
|
|
int i;
|
|
|
|
if (NULL == tree)
|
|
return;
|
|
|
|
for (i = 0; i < tree->numnodes; i++) {
|
|
tree->nodes[i].value = 999;
|
|
tree->nodes[i].low = 0;
|
|
tree->nodes[i].known = 0;
|
|
}
|
|
}*/
|
|
|
|
void 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 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 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) {
|
|
bio_write(bio, 1, 1);
|
|
node->known = 1;
|
|
}
|
|
break;
|
|
}
|
|
bio_write(bio, 0, 1);
|
|
++low;
|
|
}
|
|
|
|
node->low = low;
|
|
if (stkptr == stk)
|
|
break;
|
|
node = *--stkptr;
|
|
}
|
|
}
|
|
|
|
OPJ_UINT32 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 (bio_read(bio, 1)) {
|
|
node->value = low;
|
|
} else {
|
|
++low;
|
|
}
|
|
}
|
|
node->low = low;
|
|
if (stkptr == stk) {
|
|
break;
|
|
}
|
|
node = *--stkptr;
|
|
}
|
|
|
|
return (node->value < threshold) ? 1 : 0;
|
|
}
|