--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/openjpeg/src/lib/openjp2/t2.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,142 @@
+/*
+ * 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
+ * Copyright (c) 2017, IntoPIX SA <support@intopix.com>
+ * 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_T2_H
+#define OPJ_T2_H
+/**
+@file t2.h
+@brief Implementation of a tier-2 coding (packetization of code-block data) (T2)
+
+*/
+
+/** @defgroup T2 T2 - Implementation of a tier-2 coding */
+/*@{*/
+
+/**
+Tier-2 coding
+*/
+typedef struct opj_t2 {
+
+    /** Encoding: pointer to the src image. Decoding: pointer to the dst image. */
+    opj_image_t *image;
+    /** pointer to the image coding parameters */
+    opj_cp_t *cp;
+} opj_t2_t;
+
+/** @name Exported functions */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+
+/**
+Encode the packets of a tile to a destination buffer
+@param t2               T2 handle
+@param tileno           number of the tile encoded
+@param tile             the tile for which to write the packets
+@param maxlayers        maximum number of layers
+@param dest             the destination buffer
+@param p_data_written   FIXME DOC
+@param len              the length of the destination buffer
+@param cstr_info        Codestream information structure
+@param p_marker_info    Marker information structure
+@param tpnum            Tile part number of the current tile
+@param tppos            The position of the tile part flag in the progression order
+@param pino             FIXME DOC
+@param t2_mode          If == THRESH_CALC In Threshold calculation ,If == FINAL_PASS Final pass
+@param p_manager        the user event manager
+*/
+OPJ_BOOL opj_t2_encode_packets(opj_t2_t* t2,
+                               OPJ_UINT32 tileno,
+                               opj_tcd_tile_t *tile,
+                               OPJ_UINT32 maxlayers,
+                               OPJ_BYTE *dest,
+                               OPJ_UINT32 * p_data_written,
+                               OPJ_UINT32 len,
+                               opj_codestream_info_t *cstr_info,
+                               opj_tcd_marker_info_t* p_marker_info,
+                               OPJ_UINT32 tpnum,
+                               OPJ_INT32 tppos,
+                               OPJ_UINT32 pino,
+                               J2K_T2_MODE t2_mode,
+                               opj_event_mgr_t *p_manager);
+
+/**
+Decode the packets of a tile from a source buffer
+@param tcd TCD handle
+@param t2 T2 handle
+@param tileno number that identifies the tile for which to decode the packets
+@param tile tile for which to decode the packets
+@param src         FIXME DOC
+@param p_data_read the source buffer
+@param len length of the source buffer
+@param cstr_info   FIXME DOC
+@param p_manager the user event manager
+
+@return FIXME DOC
+ */
+OPJ_BOOL opj_t2_decode_packets(opj_tcd_t* tcd,
+                               opj_t2_t *t2,
+                               OPJ_UINT32 tileno,
+                               opj_tcd_tile_t *tile,
+                               OPJ_BYTE *src,
+                               OPJ_UINT32 * p_data_read,
+                               OPJ_UINT32 len,
+                               opj_codestream_index_t *cstr_info,
+                               opj_event_mgr_t *p_manager);
+
+/**
+ * Creates a Tier 2 handle
+ *
+ * @param   p_image     Source or destination image
+ * @param   p_cp        Image coding parameters.
+ * @return      a new T2 handle if successful, NULL otherwise.
+*/
+opj_t2_t* opj_t2_create(opj_image_t *p_image, opj_cp_t *p_cp);
+
+/**
+Destroy a T2 handle
+@param t2 T2 handle to destroy
+*/
+void opj_t2_destroy(opj_t2_t *t2);
+
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif /* OPJ_T2_H */