--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/openjpeg/src/lib/openjp2/event.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,108 @@
+/*
+ * 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) 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
+ * 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_EVENT_H
+#define OPJ_EVENT_H
+/**
+@file event.h
+@brief Implementation of a event callback system
+
+The functions in EVENT.C have for goal to send output messages (errors, warnings, debug) to the user.
+*/
+/**
+Message handler object
+used for
+<ul>
+<li>Error messages
+<li>Warning messages
+<li>Debugging messages
+</ul>
+*/
+typedef struct opj_event_mgr {
+    /** Data to call the event manager upon */
+    void *          m_error_data;
+    /** Data to call the event manager upon */
+    void *          m_warning_data;
+    /** Data to call the event manager upon */
+    void *          m_info_data;
+    /** Error message callback if available, NULL otherwise */
+    opj_msg_callback error_handler;
+    /** Warning message callback if available, NULL otherwise */
+    opj_msg_callback warning_handler;
+    /** Debug message callback if available, NULL otherwise */
+    opj_msg_callback info_handler;
+} opj_event_mgr_t;
+
+
+#define EVT_ERROR   1   /**< Error event type */
+#define EVT_WARNING 2   /**< Warning event type */
+#define EVT_INFO    4   /**< Debug event type */
+
+/** @defgroup EVENT EVENT - Implementation of a event callback system */
+/*@{*/
+
+/** @name Exported functions (see also openjpeg.h) */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+
+
+/* ----------------------------------------------------------------------- */
+
+/**
+ * Write formatted data to a string and send the string to a user callback.
+ *
+ * @param event_mgr         Event handler
+ * @param event_type        Event type or callback to use to send the message
+ * @param fmt               Format-control string (plus optional arguments)
+ *
+ * @return Returns true if successful, returns false otherwise
+ */
+OPJ_BOOL opj_event_msg(opj_event_mgr_t* event_mgr, OPJ_INT32 event_type,
+                       const char *fmt, ...);
+/* ----------------------------------------------------------------------- */
+
+/**
+ * Set the event manager with the default callback function for the 3 levels.
+ */
+void opj_set_default_event_handler(opj_event_mgr_t * p_manager);
+
+/*
+#ifdef __GNUC__
+#pragma GCC poison printf fprintf
+#endif
+*/
+
+/*@}*/
+
+/*@}*/
+
+#endif /* OPJ_EVENT_H */