diff options
Diffstat (limited to 'converter/other/jpeg2000/libjasper/jpc/jpc_tagtree.c')
| -rw-r--r-- | converter/other/jpeg2000/libjasper/jpc/jpc_tagtree.c | 466 |
1 files changed, 233 insertions, 233 deletions
diff --git a/converter/other/jpeg2000/libjasper/jpc/jpc_tagtree.c b/converter/other/jpeg2000/libjasper/jpc/jpc_tagtree.c index 2b13fcf1..1d026b85 100644 --- a/converter/other/jpeg2000/libjasper/jpc/jpc_tagtree.c +++ b/converter/other/jpeg2000/libjasper/jpc/jpc_tagtree.c @@ -6,14 +6,14 @@ */ /* __START_OF_JASPER_LICENSE__ - * + * * JasPer Software License - * + * * IMAGE POWER JPEG-2000 PUBLIC LICENSE * ************************************ - * + * * GRANT: - * + * * Permission is hereby granted, free of charge, to any person (the "User") * obtaining a copy of this software and associated documentation, to deal * in the JasPer Software without restriction, including without limitation @@ -21,22 +21,22 @@ * and/or sell copies of the JasPer Software (in source and binary forms), * and to permit persons to whom the JasPer Software is furnished to do so, * provided further that the License Conditions below are met. - * + * * License Conditions * ****************** - * + * * A. Redistributions of source code must retain the above copyright notice, * and this list of conditions, and the following disclaimer. - * + * * B. Redistributions in binary form must reproduce the above copyright * notice, and this list of conditions, and the following disclaimer in * the documentation and/or other materials provided with the distribution. - * + * * C. Neither the name of Image Power, Inc. nor any other contributor * (including, but not limited to, the University of British Columbia and * Michael David Adams) may be used to endorse or promote products derived * from this software without specific prior written permission. - * + * * D. User agrees that it shall not commence any action against Image Power, * Inc., the University of British Columbia, Michael David Adams, or any * other contributors (collectively "Licensors") for infringement of any @@ -56,17 +56,17 @@ * trade dress, or service mark rights); and (v) divisions, continuations, * renewals, reissues and extensions of the foregoing (as and to the extent * applicable) now existing, hereafter filed, issued or acquired. - * + * * E. If User commences an infringement action against any Licensor(s) then * such Licensor(s) shall have the right to terminate User's license and * all sublicenses that have been granted hereunder by User to other parties. - * + * * F. This software is for use only in hardware or software products that * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license * or right to this Software is granted for products that do not comply * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased * from the ISO. - * + * * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND @@ -106,7 +106,7 @@ * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE * NOTICE SPECIFIED IN THIS SECTION. - * + * * __END_OF_JASPER_LICENSE__ */ @@ -135,101 +135,101 @@ static jpc_tagtree_t *jpc_tagtree_alloc(void) { - jpc_tagtree_t *tree; + jpc_tagtree_t *tree; - if (!(tree = jas_malloc(sizeof(jpc_tagtree_t)))) { - return 0; - } - tree->numleafsh_ = 0; - tree->numleafsv_ = 0; - tree->numnodes_ = 0; - tree->nodes_ = 0; + if (!(tree = jas_malloc(sizeof(jpc_tagtree_t)))) { + return 0; + } + tree->numleafsh_ = 0; + tree->numleafsv_ = 0; + tree->numnodes_ = 0; + tree->nodes_ = 0; - return tree; + return tree; } /* Create a tag tree. */ jpc_tagtree_t *jpc_tagtree_create(int numleafsh, int numleafsv) { - int nplh[JPC_TAGTREE_MAXDEPTH]; - int nplv[JPC_TAGTREE_MAXDEPTH]; - jpc_tagtreenode_t *node; - jpc_tagtreenode_t *parentnode; - jpc_tagtreenode_t *parentnode0; - jpc_tagtree_t *tree; - int i; - int j; - int k; - int numlvls; - int n; - - assert(numleafsh > 0 && numleafsv > 0); - - if (!(tree = jpc_tagtree_alloc())) { - return 0; - } - tree->numleafsh_ = numleafsh; - tree->numleafsv_ = numleafsv; - - numlvls = 0; - nplh[0] = numleafsh; - nplv[0] = numleafsv; - 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); - - if (!(tree->nodes_ = jas_malloc(tree->numnodes_ * sizeof(jpc_tagtreenode_t)))) { - return 0; - } - - /* Initialize the parent links for all nodes in the tree. */ - - 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; - - /* Initialize the data values to something sane. */ - - jpc_tagtree_reset(tree); - - return tree; + int nplh[JPC_TAGTREE_MAXDEPTH]; + int nplv[JPC_TAGTREE_MAXDEPTH]; + jpc_tagtreenode_t *node; + jpc_tagtreenode_t *parentnode; + jpc_tagtreenode_t *parentnode0; + jpc_tagtree_t *tree; + int i; + int j; + int k; + int numlvls; + int n; + + assert(numleafsh > 0 && numleafsv > 0); + + if (!(tree = jpc_tagtree_alloc())) { + return 0; + } + tree->numleafsh_ = numleafsh; + tree->numleafsv_ = numleafsv; + + numlvls = 0; + nplh[0] = numleafsh; + nplv[0] = numleafsv; + 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); + + if (!(tree->nodes_ = jas_malloc(tree->numnodes_ * sizeof(jpc_tagtreenode_t)))) { + return 0; + } + + /* Initialize the parent links for all nodes in the tree. */ + + 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; + + /* Initialize the data values to something sane. */ + + jpc_tagtree_reset(tree); + + return tree; } /* Destroy a tag tree. */ void jpc_tagtree_destroy(jpc_tagtree_t *tree) { - if (tree->nodes_) { - jas_free(tree->nodes_); - } - jas_free(tree); + if (tree->nodes_) { + jas_free(tree->nodes_); + } + jas_free(tree); } /******************************************************************************\ @@ -240,42 +240,42 @@ void jpc_tagtree_destroy(jpc_tagtree_t *tree) void jpc_tagtree_copy(jpc_tagtree_t *dsttree, jpc_tagtree_t *srctree) { - int n; - jpc_tagtreenode_t *srcnode; - jpc_tagtreenode_t *dstnode; - - /* The two tag trees must have similar sizes. */ - assert(srctree->numleafsh_ == dsttree->numleafsh_ && - srctree->numleafsv_ == dsttree->numleafsv_); - - n = srctree->numnodes_; - srcnode = srctree->nodes_; - dstnode = dsttree->nodes_; - while (--n >= 0) { - dstnode->value_ = srcnode->value_; - dstnode->low_ = srcnode->low_; - dstnode->known_ = srcnode->known_; - ++dstnode; - ++srcnode; - } + int n; + jpc_tagtreenode_t *srcnode; + jpc_tagtreenode_t *dstnode; + + /* The two tag trees must have similar sizes. */ + assert(srctree->numleafsh_ == dsttree->numleafsh_ && + srctree->numleafsv_ == dsttree->numleafsv_); + + n = srctree->numnodes_; + srcnode = srctree->nodes_; + dstnode = dsttree->nodes_; + while (--n >= 0) { + dstnode->value_ = srcnode->value_; + dstnode->low_ = srcnode->low_; + dstnode->known_ = srcnode->known_; + ++dstnode; + ++srcnode; + } } /* Reset all of the state information associated with a tag tree. */ void jpc_tagtree_reset(jpc_tagtree_t *tree) { - int n; - jpc_tagtreenode_t *node; - - n = tree->numnodes_; - node = tree->nodes_; - - while (--n >= 0) { - node->value_ = INT_MAX; - node->low_ = 0; - node->known_ = 0; - ++node; - } + int n; + jpc_tagtreenode_t *node; + + n = tree->numnodes_; + node = tree->nodes_; + + while (--n >= 0) { + node->value_ = INT_MAX; + node->low_ = 0; + node->known_ = 0; + ++node; + } } /* Set the value associated with the specified leaf node, updating @@ -283,22 +283,22 @@ the other nodes as necessary. */ void jpc_tagtree_setvalue(jpc_tagtree_t *tree, jpc_tagtreenode_t *leaf, int value) { - jpc_tagtreenode_t *node; + jpc_tagtreenode_t *node; - assert(value >= 0); + assert(value >= 0); - node = leaf; - while (node && node->value_ > value) { - node->value_ = value; - node = node->parent_; - } + node = leaf; + while (node && node->value_ > value) { + node->value_ = value; + node = node->parent_; + } } /* Get a particular leaf node. */ jpc_tagtreenode_t *jpc_tagtree_getleaf(jpc_tagtree_t *tree, int n) { - return &tree->nodes_[n]; + return &tree->nodes_[n]; } /* Invoke the tag tree encoding procedure. */ @@ -306,55 +306,55 @@ jpc_tagtreenode_t *jpc_tagtree_getleaf(jpc_tagtree_t *tree, int n) int jpc_tagtree_encode(jpc_tagtree_t *tree, jpc_tagtreenode_t *leaf, int threshold, jpc_bitstream_t *out) { - jpc_tagtreenode_t *stk[JPC_TAGTREE_MAXDEPTH - 1]; - jpc_tagtreenode_t **stkptr; - jpc_tagtreenode_t *node; - int low; - - assert(leaf); - assert(threshold >= 0); - - /* Traverse to the root of the tree, recording the path taken. */ - stkptr = stk; - node = leaf; - while (node->parent_) { - *stkptr++ = node; - node = node->parent_; - } - - low = 0; - for (;;) { - if (low > node->low_) { - /* Deferred propagation of the lower bound downward in - the tree. */ - node->low_ = low; - } else { - low = node->low_; - } - - while (low < threshold) { - if (low >= node->value_) { - if (!node->known_) { - if (jpc_bitstream_putbit(out, 1) == EOF) { - return -1; - } - node->known_ = 1; - } - break; - } - if (jpc_bitstream_putbit(out, 0) == EOF) { - return -1; - } - ++low; - } - node->low_ = low; - if (stkptr == stk) { - break; - } - node = *--stkptr; - - } - return (leaf->low_ < threshold) ? 1 : 0; + jpc_tagtreenode_t *stk[JPC_TAGTREE_MAXDEPTH - 1]; + jpc_tagtreenode_t **stkptr; + jpc_tagtreenode_t *node; + int low; + + assert(leaf); + assert(threshold >= 0); + + /* Traverse to the root of the tree, recording the path taken. */ + stkptr = stk; + node = leaf; + while (node->parent_) { + *stkptr++ = node; + node = node->parent_; + } + + low = 0; + for (;;) { + if (low > node->low_) { + /* Deferred propagation of the lower bound downward in + the tree. */ + node->low_ = low; + } else { + low = node->low_; + } + + while (low < threshold) { + if (low >= node->value_) { + if (!node->known_) { + if (jpc_bitstream_putbit(out, 1) == EOF) { + return -1; + } + node->known_ = 1; + } + break; + } + if (jpc_bitstream_putbit(out, 0) == EOF) { + return -1; + } + ++low; + } + node->low_ = low; + if (stkptr == stk) { + break; + } + node = *--stkptr; + + } + return (leaf->low_ < threshold) ? 1 : 0; } @@ -363,47 +363,47 @@ int jpc_tagtree_encode(jpc_tagtree_t *tree, jpc_tagtreenode_t *leaf, int thresho int jpc_tagtree_decode(jpc_tagtree_t *tree, jpc_tagtreenode_t *leaf, int threshold, jpc_bitstream_t *in) { - jpc_tagtreenode_t *stk[JPC_TAGTREE_MAXDEPTH - 1]; - jpc_tagtreenode_t **stkptr; - jpc_tagtreenode_t *node; - int low; - int ret; - - assert(threshold >= 0); - - /* Traverse to the root of the tree, recording the path taken. */ - stkptr = stk; - node = leaf; - 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 ((ret = jpc_bitstream_getbit(in)) < 0) { - return -1; - } - if (ret) { - node->value_ = low; - } else { - ++low; - } - } - node->low_ = low; - if (stkptr == stk) { - break; - } - node = *--stkptr; - } - - return (node->value_ < threshold) ? 1 : 0; + jpc_tagtreenode_t *stk[JPC_TAGTREE_MAXDEPTH - 1]; + jpc_tagtreenode_t **stkptr; + jpc_tagtreenode_t *node; + int low; + int ret; + + assert(threshold >= 0); + + /* Traverse to the root of the tree, recording the path taken. */ + stkptr = stk; + node = leaf; + 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 ((ret = jpc_bitstream_getbit(in)) < 0) { + return -1; + } + if (ret) { + node->value_ = low; + } else { + ++low; + } + } + node->low_ = low; + if (stkptr == stk) { + break; + } + node = *--stkptr; + } + + return (node->value_ < threshold) ? 1 : 0; } /******************************************************************************\ @@ -412,15 +412,15 @@ int jpc_tagtree_decode(jpc_tagtree_t *tree, jpc_tagtreenode_t *leaf, int thresho void jpc_tagtree_dump(jpc_tagtree_t *tree, FILE *out) { - jpc_tagtreenode_t *node; - int n; - - node = tree->nodes_; - n = tree->numnodes_; - while (--n >= 0) { - fprintf(out, "node %p, parent %p, value %d, lower %d, known %d\n", - (void *) node, (void *) node->parent_, node->value_, node->low_, - node->known_); - ++node; - } + jpc_tagtreenode_t *node; + int n; + + node = tree->nodes_; + n = tree->numnodes_; + while (--n >= 0) { + fprintf(out, "node %p, parent %p, value %d, lower %d, known %d\n", + (void *) node, (void *) node->parent_, node->value_, node->low_, + node->known_); + ++node; + } } |