--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/openjpeg/src/lib/openjp2/tpix_manager.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,190 @@
+/*
+ * $Id: tpix_manager.c 897 2011-08-28 21:43:57Z Kaori.Hagihara@gmail.com $
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
+ * Copyright (c) 2003-2004, Yannick Verschueren
+ * Copyright (c) 2010-2011, Kaori Hagihara
+ * 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.
+ */
+
+/*! \file
+ *  \brief Modification of jpip.c from 2KAN indexer
+ */
+
+#include "opj_includes.h"
+
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+/*
+ * Get number of maximum tile parts per tile
+ *
+ * @param[in] cstr_info codestream information
+ * @return              number of maximum tile parts per tile
+ */
+int get_num_max_tile_parts(opj_codestream_info_t cstr_info);
+
+
+/*
+ * Write faix box of tpix
+ *
+ * @param[in] coff offset of j2k codestream
+ * @param[in] compno    component number
+ * @param[in] cstr_info codestream information
+ * @param[in] j2klen    length of j2k codestream
+ * @param[in] cio       file output handle
+ * @return              length of faix box
+ */
+
+int opj_write_tpix(int coff,
+                   opj_codestream_info_t cstr_info,
+                   int j2klen, opj_stream_private_t *cio,
+                   opj_event_mgr_t * p_manager)
+{
+    OPJ_BYTE l_data_header [4];
+    OPJ_UINT32 len;
+    OPJ_OFF_T lenp;
+
+    lenp = opj_stream_tell(cio);
+    opj_stream_skip(cio, 4, p_manager);
+    opj_write_bytes(l_data_header, JPIP_TPIX, 4); /* TPIX */
+    opj_stream_write_data(cio, l_data_header, 4, p_manager);
+
+    opj_write_tpixfaix(coff, 0, cstr_info, j2klen, cio, p_manager);
+
+    len = (OPJ_UINT32)(opj_stream_tell(cio) - lenp);
+
+    opj_stream_skip(cio, lenp, p_manager);
+    opj_write_bytes(l_data_header, len, 4); /* L              */
+    opj_stream_write_data(cio, l_data_header, 4, p_manager);
+    opj_stream_seek(cio, lenp + len, p_manager);
+
+    return (int)len;
+}
+
+int opj_write_tpixfaix(int coff,
+                       int compno,
+                       opj_codestream_info_t cstr_info,
+                       int j2klen,
+                       opj_stream_private_t *cio,
+                       opj_event_mgr_t * p_manager)
+{
+    OPJ_UINT32 len;
+    OPJ_OFF_T lenp;
+    OPJ_UINT32 i, j;
+    OPJ_UINT32 Aux;
+    OPJ_UINT32 num_max_tile_parts;
+    OPJ_UINT32 size_of_coding; /* 4 or 8 */
+    opj_tp_info_t tp;
+    OPJ_BYTE l_data_header [8];
+    OPJ_UINT32 version;
+
+    num_max_tile_parts = (OPJ_UINT32)get_num_max_tile_parts(cstr_info);
+
+    if (j2klen > pow(2, 32)) {
+        size_of_coding =  8;
+        version = num_max_tile_parts == 1 ? 1 : 3;
+    } else {
+        size_of_coding = 4;
+        version = num_max_tile_parts == 1 ? 0 : 2;
+    }
+
+    lenp = opj_stream_tell(cio);
+    opj_stream_skip(cio, 4, p_manager);         /* L [at the end]      */
+    opj_write_bytes(l_data_header, JPIP_FAIX, 4); /* FAIX */
+    opj_stream_write_data(cio, l_data_header, 4, p_manager);
+    opj_write_bytes(l_data_header, version, 1); /* Version 0 = 4 bytes */
+    opj_stream_write_data(cio, l_data_header, 1, p_manager);
+
+    opj_write_bytes(l_data_header, num_max_tile_parts,
+                    size_of_coding);       /* NMAX           */
+    opj_stream_write_data(cio, l_data_header, size_of_coding, p_manager);
+    opj_write_bytes(l_data_header, (OPJ_UINT32)(cstr_info.tw * cstr_info.th),
+                    size_of_coding);  /* M              */
+    opj_stream_write_data(cio, l_data_header, size_of_coding, p_manager);
+
+    for (i = 0; i < (OPJ_UINT32)(cstr_info.tw * cstr_info.th); i++) {
+        for (j = 0; j < (OPJ_UINT32)cstr_info.tile[i].num_tps; j++) {
+            tp = cstr_info.tile[i].tp[j];
+
+            opj_write_bytes(l_data_header, (OPJ_UINT32)(tp.tp_start_pos - coff),
+                            size_of_coding);            /* start position */
+            opj_stream_write_data(cio, l_data_header, size_of_coding, p_manager);
+            opj_write_bytes(l_data_header,
+                            (OPJ_UINT32)(tp.tp_end_pos - tp.tp_start_pos + 1),
+                            size_of_coding); /* length         */
+            opj_stream_write_data(cio, l_data_header, size_of_coding, p_manager);
+
+            if (version & 0x02) {
+                if (cstr_info.tile[i].num_tps == 1 && cstr_info.numdecompos[compno] > 1) {
+                    Aux = (OPJ_UINT32)(cstr_info.numdecompos[compno] + 1);
+                } else {
+                    Aux = j + 1;
+                }
+
+                opj_write_bytes(l_data_header, Aux, 4);
+                opj_stream_write_data(cio, l_data_header, 4, p_manager);
+
+                /*cio_write(img.tile[i].tile_parts[j].num_reso_AUX,4);*/ /* Aux_i,j : Auxiliary value */
+                /* fprintf(stderr,"AUX value %d\n",Aux);*/
+            }
+            /*cio_write(0,4);*/
+        }
+        /* PADDING */
+        while (j < num_max_tile_parts) {
+
+            opj_write_bytes(l_data_header, 0,
+                            size_of_coding); /* start position            */
+            opj_stream_write_data(cio, l_data_header, size_of_coding, p_manager);
+            opj_write_bytes(l_data_header, 0,
+                            size_of_coding); /* length                    */
+            opj_stream_write_data(cio, l_data_header, size_of_coding, p_manager);
+
+            if (version & 0x02) {
+                opj_write_bytes(l_data_header, 0, 4);    /* Aux_i,j : Auxiliary value */
+            }
+            opj_stream_write_data(cio, l_data_header, 4, p_manager);
+            j++;
+        }
+    }
+
+    len = (OPJ_UINT32)(opj_stream_tell(cio) - lenp);
+    opj_stream_seek(cio, lenp, p_manager);
+    opj_write_bytes(l_data_header, len, 4); /* L  */
+    opj_stream_write_data(cio, l_data_header, 4, p_manager);
+    opj_stream_seek(cio, lenp + len, p_manager);
+
+    return (int)len;
+}
+
+int get_num_max_tile_parts(opj_codestream_info_t cstr_info)
+{
+    int num_max_tp = 0, i;
+
+    for (i = 0; i < cstr_info.tw * cstr_info.th; i++) {
+        num_max_tp = MAX(cstr_info.tile[i].num_tps, num_max_tp);
+    }
+
+    return num_max_tp;
+}