2 * Copyright © 2009 Red Hat, Inc.
3 * Copyright © 2011 Google, Inc.
5 * This is part of HarfBuzz, a text shaping library.
7 * Permission is hereby granted, without written agreement and without
8 * license or royalty fees, to use, copy, modify, and distribute this
9 * software and its documentation for any purpose, provided that the
10 * above copyright notice and the following two paragraphs appear in
11 * all copies of this software.
13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
25 * Red Hat Author(s): Behdad Esfahbod
26 * Google Author(s): Behdad Esfahbod
29 #ifndef HB_FACE_PRIVATE_HH
30 #define HB_FACE_PRIVATE_HH
32 #include "hb-private.hh"
34 #include "hb-object-private.hh"
35 #include "hb-shaper-private.hh"
36 #include "hb-shape-plan-private.hh"
44 hb_object_header_t header;
49 hb_reference_table_func_t reference_table_func;
51 hb_destroy_func_t destroy;
53 unsigned int index; /* Face index in a collection, zero-based. */
54 mutable unsigned int upem; /* Units-per-EM. */
55 mutable unsigned int num_glyphs; /* Number of glyphs. */
64 struct hb_shaper_data_t shaper_data; /* Various shaper data. */
66 /* Various non-shaping data. */
71 hb_shape_plan_t *shape_plan;
76 inline hb_blob_t *reference_table (hb_tag_t tag) const
80 if (unlikely (!reference_table_func))
81 return hb_blob_get_empty ();
83 blob = reference_table_func (/*XXX*/const_cast<hb_face_t *> (this), tag, user_data);
85 return hb_blob_get_empty ();
90 inline HB_PURE_FUNC unsigned int get_upem (void) const
97 inline unsigned int get_num_glyphs (void) const
99 if (unlikely (num_glyphs == (unsigned int) -1))
105 HB_INTERNAL void load_upem (void) const;
106 HB_INTERNAL void load_num_glyphs (void) const;
109 HB_MARK_AS_FLAG_T (hb_face_t::dirty_t);
111 extern HB_INTERNAL const hb_face_t _hb_face_nil;
113 #define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
114 #define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_PROTOTYPE(shaper, face);
115 #include "hb-shaper-list.hh"
116 #undef HB_SHAPER_IMPLEMENT
117 #undef HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
120 #endif /* HB_FACE_PRIVATE_HH */