--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/jbig2dec/jbig2_generic.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,49 @@
+/* Copyright (C) 2001-2023 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied,
+   modified or distributed except as expressly authorized under the terms
+   of the license contained in the file LICENSE in this distribution.
+
+   Refer to licensing information at http://www.artifex.com or contact
+   Artifex Software, Inc.,  39 Mesa Street, Suite 108A, San Francisco,
+   CA 94129, USA, for further information.
+*/
+
+/*
+    jbig2dec
+*/
+
+#ifndef _JBIG2_GENERIC_H
+#define _JBIG2_GENERIC_H
+
+/**
+ * Headers for Generic and Generic Refinement region handling
+ **/
+
+/* 6.4 Table 2 */
+typedef struct {
+    bool MMR;
+    /* GBW */
+    /* GBH */
+    int GBTEMPLATE;
+    bool TPGDON;
+    bool USESKIP;
+    Jbig2Image *SKIP;
+    int8_t gbat[8];
+} Jbig2GenericRegionParams;
+
+/* return the appropriate context size for the given template */
+int jbig2_generic_stats_size(Jbig2Ctx *ctx, int template);
+
+int
+jbig2_decode_generic_region(Jbig2Ctx *ctx,
+                            Jbig2Segment *segment, const Jbig2GenericRegionParams *params, Jbig2ArithState *as, Jbig2Image *image, Jbig2ArithCx *GB_stats);
+
+/* 7.4 */
+int jbig2_immediate_generic_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const uint8_t *segment_data);
+
+#endif /* _JBIG2_GENERIC_H */