--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/harfbuzz/util/shape-output.hh	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,159 @@
+/*
+ * Copyright © 2010  Behdad Esfahbod
+ * Copyright © 2011,2012  Google, Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_SHAPE_OUTPUT_HH
+#define HB_SHAPE_OUTPUT_HH
+
+#include "shape-format.hh"
+#include "output-options.hh"
+
+
+struct shape_output_t : output_options_t<>
+{
+  void add_options (option_parser_t *parser)
+  {
+    parser->set_summary ("Shape text with given font.");
+    output_options_t::add_options (parser, hb_buffer_serialize_list_formats ());
+    format.add_options (parser);
+  }
+
+  void init (hb_buffer_t *buffer, const font_options_t *font_opts)
+  {
+    gs = g_string_new (nullptr);
+    line_no = 0;
+    font = hb_font_reference (font_opts->font);
+
+    if (!output_format)
+      serialize_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
+    else
+      serialize_format = hb_buffer_serialize_format_from_string (output_format, -1);
+    /* An empty "output_format" parameter basically skips output generating.
+     * Useful for benchmarking. */
+    if ((!output_format || *output_format) &&
+	!hb_buffer_serialize_format_to_string (serialize_format))
+    {
+      if (explicit_output_format)
+	fail (false, "Unknown output format `%s'; supported formats are: %s",
+	      output_format,
+	      g_strjoinv ("/", const_cast<char**> (hb_buffer_serialize_list_formats ())));
+      else
+	/* Just default to TEXT if not explicitly requested and the
+	 * file extension is not recognized. */
+	serialize_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
+    }
+
+    unsigned int flags = HB_BUFFER_SERIALIZE_FLAG_DEFAULT;
+    if (!format.show_glyph_names)
+      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES;
+    if (!format.show_clusters)
+      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS;
+    if (!format.show_positions)
+      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS;
+    if (!format.show_advances)
+      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_ADVANCES;
+    if (format.show_extents)
+      flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS;
+    if (format.show_flags)
+      flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS;
+    serialize_flags = (hb_buffer_serialize_flags_t) flags;
+
+    if (format.trace)
+      hb_buffer_set_message_func (buffer, message_func, this, nullptr);
+  }
+  void new_line () { line_no++; }
+  void consume_text (hb_buffer_t  *buffer,
+		     const char   *text,
+		     unsigned int  text_len,
+		     hb_bool_t     utf8_clusters)
+  {
+    g_string_set_size (gs, 0);
+    format.serialize_buffer_of_text (buffer, line_no, text, text_len, font, gs);
+    fprintf (out_fp, "%s", gs->str);
+  }
+  void error (const char *message)
+  {
+    g_string_set_size (gs, 0);
+    format.serialize_message (line_no, "error", message, gs);
+    fprintf (out_fp, "%s", gs->str);
+  }
+  void consume_glyphs (hb_buffer_t  *buffer,
+		       const char   *text,
+		       unsigned int  text_len,
+		       hb_bool_t     utf8_clusters)
+  {
+    g_string_set_size (gs, 0);
+    format.serialize_buffer_of_glyphs (buffer, line_no, text, text_len, font,
+				       serialize_format, serialize_flags, gs);
+    fprintf (out_fp, "%s", gs->str);
+  }
+  void finish (hb_buffer_t *buffer, const font_options_t *font_opts)
+  {
+    hb_buffer_set_message_func (buffer, nullptr, nullptr, nullptr);
+    hb_font_destroy (font);
+    g_string_free (gs, true);
+    gs = nullptr;
+    font = nullptr;
+  }
+
+  static hb_bool_t
+  message_func (hb_buffer_t *buffer,
+		hb_font_t *font,
+		const char *message,
+		void *user_data)
+  {
+    shape_output_t *that = (shape_output_t *) user_data;
+    that->trace (buffer, font, message);
+    return true;
+  }
+
+  void
+  trace (hb_buffer_t *buffer,
+	 hb_font_t *font,
+	 const char *message)
+  {
+    g_string_set_size (gs, 0);
+    format.serialize_line_no (line_no, gs);
+    g_string_append_printf (gs, "trace: %s	buffer: ", message);
+    format.serialize (buffer, font, serialize_format, serialize_flags, gs);
+    g_string_append_c (gs, '\n');
+    fprintf (out_fp, "%s", gs->str);
+  }
+
+
+  protected:
+
+  shape_format_options_t format;
+
+  GString *gs = nullptr;
+  unsigned int line_no = 0;
+  hb_font_t *font = nullptr;
+  hb_buffer_serialize_format_t serialize_format = HB_BUFFER_SERIALIZE_FORMAT_INVALID;
+  hb_buffer_serialize_flags_t serialize_flags = HB_BUFFER_SERIALIZE_FLAG_DEFAULT;
+};
+
+
+#endif