--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/openjpeg/src/lib/openjp2/cidx_manager.c	Mon Sep 15 11:44:09 2025 +0200
@@ -0,0 +1,259 @@
+/*
+ * $Id: cidx_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.
+ */
+
+#include "opj_includes.h"
+
+
+/*
+ * Write CPTR Codestream finder box
+ *
+ * @param[in] coff offset of j2k codestream
+ * @param[in] clen length of j2k codestream
+ * @param[in] cio  file output handle
+ */
+
+void opj_write_cptr(int coff, int clen, opj_stream_private_t *cio,
+                    opj_event_mgr_t * p_manager);
+
+
+
+
+
+int opj_write_cidx(int offset, opj_stream_private_t *cio,
+                   opj_codestream_info_t cstr_info, int j2klen,
+                   opj_event_mgr_t * p_manager)
+{
+    int i;
+    OPJ_OFF_T lenp;
+    OPJ_UINT32 len;
+    opj_jp2_box_t *box;
+    int num_box = 0;
+    OPJ_BOOL  EPHused;
+    OPJ_BYTE l_data_header [4];
+
+    lenp = -1;
+    box = (opj_jp2_box_t *)opj_calloc(32, sizeof(opj_jp2_box_t));
+    if (box == NULL) {
+        return 0;
+    }
+    for (i = 0; i < 2; i++) {
+
+        if (i) {
+            opj_stream_seek(cio, lenp, p_manager);
+        }
+
+
+        lenp = opj_stream_tell(cio);
+
+        opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
+
+        opj_write_bytes(l_data_header, JPIP_CIDX, 4); /* CIDX */
+        opj_stream_write_data(cio, l_data_header, 4, p_manager);
+
+        opj_write_cptr(offset, cstr_info.codestream_size, cio, p_manager);
+
+        opj_write_manf(i, num_box, box, cio, p_manager);
+
+        num_box = 0;
+        box[num_box].length = (OPJ_UINT32)opj_write_mainmhix(offset, cstr_info, cio,
+                              p_manager);
+        box[num_box].type = JPIP_MHIX;
+        num_box++;
+
+        box[num_box].length = (OPJ_UINT32)opj_write_tpix(offset, cstr_info, j2klen, cio,
+                              p_manager);
+        box[num_box].type = JPIP_TPIX;
+        num_box++;
+
+        box[num_box].length = (OPJ_UINT32)opj_write_thix(offset, cstr_info, cio,
+                              p_manager);
+        box[num_box].type = JPIP_THIX;
+        num_box++;
+
+        EPHused = opj_check_EPHuse(offset, cstr_info.marker, cstr_info.marknum, cio,
+                                   p_manager);
+
+        box[num_box].length = (OPJ_UINT32)opj_write_ppix(offset, cstr_info, EPHused,
+                              j2klen, cio, p_manager);
+        box[num_box].type = JPIP_PPIX;
+        num_box++;
+
+        box[num_box].length = (OPJ_UINT32)opj_write_phix(offset, cstr_info, EPHused,
+                              j2klen, cio, p_manager);
+        box[num_box].type = JPIP_PHIX;
+        num_box++;
+
+        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);
+    }
+
+    opj_free(box);
+
+    return (int)len;
+}
+
+
+
+void opj_write_cptr(int coff, int clen, opj_stream_private_t *cio,
+                    opj_event_mgr_t * p_manager)
+{
+    OPJ_BYTE l_data_header [3 * 8];
+    OPJ_UINT32 len;
+    OPJ_OFF_T lenp;
+
+
+    lenp = opj_stream_tell(cio);
+    opj_stream_skip(cio, 4, p_manager);                /* L [at the end]     */
+    opj_write_bytes(l_data_header, JPIP_CPTR, 4);    /* T                  */
+    opj_write_bytes(l_data_header + 4, 0, 2);          /* DR  A PRECISER !!  */
+    opj_write_bytes(l_data_header + 6, 0, 2);          /* CONT               */
+    opj_write_bytes(l_data_header + 8, (OPJ_UINT32)coff,
+                    8);   /* COFF A PRECISER !! */
+    opj_write_bytes(l_data_header + 16, (OPJ_UINT32)clen,
+                    8);   /* CLEN               */
+    opj_stream_write_data(cio, l_data_header, 3 * 8, p_manager);
+
+    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);
+
+}
+
+
+
+void opj_write_manf(int second,
+                    int v,
+                    opj_jp2_box_t *box,
+                    opj_stream_private_t *cio,
+                    opj_event_mgr_t * p_manager)
+{
+    OPJ_BYTE l_data_header [4];
+    int i;
+    OPJ_UINT32 len;
+    OPJ_OFF_T lenp;
+
+    lenp = opj_stream_tell(cio);
+    opj_stream_skip(cio, 4, p_manager);              /* L [at the end]     */
+    opj_write_bytes(l_data_header, JPIP_MANF, 4);    /* T                  */
+    opj_stream_write_data(cio, l_data_header, 4, p_manager);
+
+    if (second) {                         /* Write only during the second pass */
+        for (i = 0; i < v; i++) {
+            opj_write_bytes(l_data_header, box[i].length,
+                            4);  /* Box length                     */
+            opj_stream_write_data(cio, l_data_header, 4, p_manager);
+            opj_write_bytes(l_data_header, box[i].type,
+                            4);  /* Box type                       */
+            opj_stream_write_data(cio, l_data_header, 4, p_manager);
+        }
+    }
+
+    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);
+}
+
+
+int opj_write_mainmhix(int coff, opj_codestream_info_t cstr_info,
+                       opj_stream_private_t *cio,
+                       opj_event_mgr_t * p_manager)
+{
+    OPJ_BYTE l_data_header [8];
+    OPJ_UINT32 i;
+    OPJ_UINT32 len;
+    OPJ_OFF_T lenp;
+
+    lenp = opj_stream_tell(cio);
+    opj_stream_skip(cio, 4,
+                    p_manager);               /* L [at the end]                    */
+    opj_write_bytes(l_data_header, JPIP_MHIX,
+                    4);     /* MHIX                              */
+    opj_stream_write_data(cio, l_data_header, 4, p_manager);
+
+    opj_write_bytes(l_data_header,
+                    (OPJ_UINT32)(cstr_info.main_head_end - cstr_info.main_head_start + 1),
+                    8);        /* TLEN                              */
+    opj_stream_write_data(cio, l_data_header, 8, p_manager);
+
+    for (i = 1; i < (OPJ_UINT32)cstr_info.marknum;
+            i++) {  /* Marker restricted to 1 apparition, skip SOC marker */
+        opj_write_bytes(l_data_header, cstr_info.marker[i].type, 2);
+        opj_write_bytes(l_data_header + 2, 0, 2);
+        opj_stream_write_data(cio, l_data_header, 4, p_manager);
+        opj_write_bytes(l_data_header, (OPJ_UINT32)(cstr_info.marker[i].pos - coff), 8);
+        opj_stream_write_data(cio, l_data_header, 8, p_manager);
+        opj_write_bytes(l_data_header, (OPJ_UINT32)cstr_info.marker[i].len, 2);
+        opj_stream_write_data(cio, l_data_header, 2, p_manager);
+    }
+
+    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;
+}
+
+OPJ_BOOL opj_check_EPHuse(int coff, opj_marker_info_t *markers, int marknum,
+                          opj_stream_private_t *cio,
+                          opj_event_mgr_t * p_manager)
+{
+    OPJ_BYTE l_data_header [4];
+    OPJ_BOOL EPHused = OPJ_FALSE;
+    int i = 0;
+    OPJ_OFF_T org_pos;
+    unsigned int Scod;
+
+    for (i = 0; i < marknum; i++) {
+        if (markers[i].type == J2K_MS_COD) {
+            org_pos = opj_stream_tell(cio);
+            opj_stream_seek(cio, coff + markers[i].pos + 2, p_manager);
+
+            opj_stream_read_data(cio, l_data_header, 1, p_manager);
+            opj_read_bytes(l_data_header, &Scod, 1);
+            if (((Scod >> 2) & 1)) {
+                EPHused = OPJ_TRUE;
+            }
+            opj_stream_seek(cio, org_pos, p_manager);
+
+            break;
+        }
+    }
+    return EPHused;
+}