diff mupdf-source/thirdparty/harfbuzz/src/hb-static.cc @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/harfbuzz/src/hb-static.cc	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,144 @@
+/*
+ * Copyright © 2018  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
+ */
+
+#include "hb.hh"
+
+#include "hb-open-type.hh"
+#include "hb-face.hh"
+
+#include "hb-aat-layout-common.hh"
+#include "hb-aat-layout-feat-table.hh"
+#include "hb-ot-layout-common.hh"
+#include "hb-ot-cmap-table.hh"
+#include "hb-ot-color-colr-table.hh"
+#include "hb-ot-glyf-table.hh"
+#include "hb-ot-head-table.hh"
+#include "hb-ot-maxp-table.hh"
+
+#ifndef HB_NO_VISIBILITY
+#include "hb-ot-name-language-static.hh"
+
+uint64_t const _hb_NullPool[(HB_NULL_POOL_SIZE + sizeof (uint64_t) - 1) / sizeof (uint64_t)] = {};
+/*thread_local*/ uint64_t _hb_CrapPool[(HB_NULL_POOL_SIZE + sizeof (uint64_t) - 1) / sizeof (uint64_t)] = {};
+
+DEFINE_NULL_NAMESPACE_BYTES (OT, Index) =  {0xFF,0xFF};
+DEFINE_NULL_NAMESPACE_BYTES (OT, VarIdx) =  {0xFF,0xFF,0xFF,0xFF};
+DEFINE_NULL_NAMESPACE_BYTES (OT, LangSys) = {0x00,0x00, 0xFF,0xFF, 0x00,0x00};
+DEFINE_NULL_NAMESPACE_BYTES (OT, RangeRecord) = {0x01};
+DEFINE_NULL_NAMESPACE_BYTES (OT, ClipRecord) = {0x01};
+DEFINE_NULL_NAMESPACE_BYTES (OT, CmapSubtableLongGroup) = {0x00,0x00,0x00,0x01, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00};
+DEFINE_NULL_NAMESPACE_BYTES (AAT, SettingName) = {0xFF,0xFF, 0xFF,0xFF};
+DEFINE_NULL_NAMESPACE_BYTES (AAT, Lookup) = {0xFF,0xFF};
+
+
+/* hb_map_t */
+
+const hb_codepoint_t minus_1 = -1;
+
+/* hb_face_t */
+
+#ifndef HB_NO_BEYOND_64K
+static inline unsigned
+load_num_glyphs_from_loca (const hb_face_t *face)
+{
+  unsigned ret = 0;
+
+  unsigned indexToLocFormat = face->table.head->indexToLocFormat;
+
+  if (indexToLocFormat <= 1)
+  {
+    bool short_offset = 0 == indexToLocFormat;
+    hb_blob_t *loca_blob = face->table.loca.get_blob ();
+    ret = hb_max (1u, loca_blob->length / (short_offset ? 2 : 4)) - 1;
+  }
+
+  return ret;
+}
+#endif
+
+static inline unsigned
+load_num_glyphs_from_maxp (const hb_face_t *face)
+{
+  return face->table.maxp->get_num_glyphs ();
+}
+
+unsigned int
+hb_face_t::load_num_glyphs () const
+{
+  unsigned ret = 0;
+
+#ifndef HB_NO_BEYOND_64K
+  ret = hb_max (ret, load_num_glyphs_from_loca (this));
+#endif
+
+  ret = hb_max (ret, load_num_glyphs_from_maxp (this));
+
+  num_glyphs = ret;
+  return ret;
+}
+
+unsigned int
+hb_face_t::load_upem () const
+{
+  unsigned int ret = table.head->get_upem ();
+  upem = ret;
+  return ret;
+}
+
+
+/* hb_user_data_array_t */
+
+bool
+hb_user_data_array_t::set (hb_user_data_key_t *key,
+			   void *              data,
+			   hb_destroy_func_t   destroy,
+			   hb_bool_t           replace)
+{
+  if (!key)
+    return false;
+
+  if (replace) {
+    if (!data && !destroy) {
+      items.remove (key, lock);
+      return true;
+    }
+  }
+  hb_user_data_item_t item = {key, data, destroy};
+  bool ret = !!items.replace_or_insert (item, lock, (bool) replace);
+
+  return ret;
+}
+
+void *
+hb_user_data_array_t::get (hb_user_data_key_t *key)
+{
+  hb_user_data_item_t item = {nullptr, nullptr, nullptr};
+
+  return items.find (key, &item, lock) ? item.data : nullptr;
+}
+
+
+#endif