--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/openjpeg/src/lib/openjp2/tgt.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,148 @@
+/*
+ * 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, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
+ * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France
+ * 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.
+ */
+
+#ifndef OPJ_TGT_H
+#define OPJ_TGT_H
+/**
+@file tgt.h
+@brief Implementation of a tag-tree coder (TGT)
+
+The functions in TGT.C have for goal to realize a tag-tree coder. The functions in TGT.C
+are used by some function in T2.C.
+*/
+
+/** @defgroup TGT TGT - Implementation of a tag-tree coder */
+/*@{*/
+
+/**
+Tag node
+*/
+typedef struct opj_tgt_node {
+    struct opj_tgt_node *parent;
+    OPJ_INT32 value;
+    OPJ_INT32 low;
+    OPJ_UINT32 known;
+} opj_tgt_node_t;
+
+/**
+Tag tree
+*/
+typedef struct opj_tgt_tree {
+    OPJ_UINT32  numleafsh;
+    OPJ_UINT32  numleafsv;
+    OPJ_UINT32 numnodes;
+    opj_tgt_node_t *nodes;
+    OPJ_UINT32  nodes_size;     /* maximum size taken by nodes */
+} opj_tgt_tree_t;
+
+
+/** @name Exported functions */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+/**
+Create a tag-tree
+@param numleafsh Width of the array of leafs of the tree
+@param numleafsv Height of the array of leafs of the tree
+@param p_manager the event manager
+@return Returns a new tag-tree if successful, returns NULL otherwise
+*/
+opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv,
+                               opj_event_mgr_t *p_manager);
+
+/**
+ * Reinitialises a tag-tree from an exixting 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
+ * @param p_manager       the event manager
+ * @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);
+/**
+Destroy a tag-tree, liberating memory
+@param tree Tag-tree to destroy
+*/
+void opj_tgt_destroy(opj_tgt_tree_t *tree);
+/**
+Reset a tag-tree (set all leaves to 0)
+@param tree Tag-tree to reset
+*/
+void opj_tgt_reset(opj_tgt_tree_t *tree);
+/**
+Set the value of a leaf of a tag-tree
+@param tree Tag-tree to modify
+@param leafno Number that identifies the leaf to modify
+@param value New value of the leaf
+*/
+void opj_tgt_setvalue(opj_tgt_tree_t *tree,
+                      OPJ_UINT32 leafno,
+                      OPJ_INT32 value);
+/**
+Encode the value of a leaf of the tag-tree up to a given threshold
+@param bio Pointer to a BIO handle
+@param tree Tag-tree to modify
+@param leafno Number that identifies the leaf to encode
+@param threshold Threshold to use when encoding value of the leaf
+*/
+void opj_tgt_encode(opj_bio_t *bio,
+                    opj_tgt_tree_t *tree,
+                    OPJ_UINT32 leafno,
+                    OPJ_INT32 threshold);
+/**
+Decode the value of a leaf of the tag-tree up to a given threshold
+@param bio Pointer to a BIO handle
+@param tree Tag-tree to decode
+@param leafno Number that identifies the leaf to decode
+@param threshold Threshold to use when decoding value of the leaf
+@return Returns 1 if the node's value < threshold, returns 0 otherwise
+*/
+OPJ_UINT32 opj_tgt_decode(opj_bio_t *bio,
+                          opj_tgt_tree_t *tree,
+                          OPJ_UINT32 leafno,
+                          OPJ_INT32 threshold);
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif /* OPJ_TGT_H */