hb-ot-shape-private.hh revision d1deaa2f5bd028e8076265cba92cffa4fa2834ac 
1/*
2 * Copyright © 2010  Google, Inc.
3 *
4 *  This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 * Google Author(s): Behdad Esfahbod
25 */
26
27#ifndef HB_OT_SHAPE_PRIVATE_HH
28#define HB_OT_SHAPE_PRIVATE_HH
29
30#include "hb-private.hh"
31
32#include "hb-ot-map-private.hh"
33#include "hb-ot-shape-complex-private.hh"
34
35
36struct hb_ot_shape_plan_t
37{
38  hb_ot_map_t map;
39  hb_ot_complex_shaper_t shaper;
40
41  hb_ot_shape_plan_t (void) : map () {}
42  ~hb_ot_shape_plan_t (void) { map.finish (); }
43
44  private:
45  NO_COPY (hb_ot_shape_plan_t);
46};
47
48
49
50HB_INTERNAL hb_bool_t
51_hb_ot_shape (hb_font_t          *font,
52	      hb_buffer_t        *buffer,
53	      const hb_feature_t *features,
54	      unsigned int        num_features);
55
56
57inline void
58_hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode)
59{
60  info->unicode_props0() = ((unsigned int) hb_unicode_general_category (unicode, info->codepoint)) |
61			   (_hb_unicode_is_zero_width (info->codepoint) ? 0x80 : 0);
62  info->unicode_props1() = _hb_unicode_modified_combining_class (unicode, info->codepoint);
63}
64
65inline hb_unicode_general_category_t
66_hb_glyph_info_get_general_category (const hb_glyph_info_t *info)
67{
68  return (hb_unicode_general_category_t) (info->unicode_props0() & 0x7F);
69}
70
71inline unsigned int
72_hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info)
73{
74  return info->unicode_props1();
75}
76
77inline hb_bool_t
78_hb_glyph_info_is_zero_width (const hb_glyph_info_t *info)
79{
80  return !!(info->unicode_props0() & 0x80);
81}
82
83#endif /* HB_OT_SHAPE_PRIVATE_HH */
84