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+/*
+ * 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-cff-interp-common.hh"
+#include "hb-ot-layout-common.hh"
+#include "hb-ot-cmap-table.hh"
+#include "OT/Color/COLR/COLR.hh"
+#include "hb-ot-glyf-table.hh"
+#include "hb-ot-head-table.hh"
+#include "hb-ot-hmtx-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;
+static const unsigned char static_endchar_str[] = {OpCode_endchar};
+const unsigned char *endchar_str = static_endchar_str;
+
+/* 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;
+}
+
+
+#ifndef HB_NO_VAR
+bool
+_glyf_get_leading_bearing_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical,
+ int *lsb)
+{
+ return font->face->table.glyf->get_leading_bearing_with_var_unscaled (font, glyph, is_vertical, lsb);
+}
+
+unsigned
+_glyf_get_advance_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical)
+{
+ return font->face->table.glyf->get_advance_with_var_unscaled (font, glyph, is_vertical);
+}
+#endif
+
+bool
+_glyf_get_leading_bearing_without_var_unscaled (hb_face_t *face, hb_codepoint_t gid, bool is_vertical, int *lsb)
+{
+ return face->table.glyf->get_leading_bearing_without_var_unscaled (gid, is_vertical, lsb);
+}
+
+
+#endif