2 * Copyright © 2010 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
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.
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
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.
24 * Google Author(s): Behdad Esfahbod
27 #ifndef HB_OT_SHAPE_PRIVATE_HH
28 #define HB_OT_SHAPE_PRIVATE_HH
30 #include "hb-private.hh"
32 #include "hb-ot-map-private.hh"
36 /* buffer var allocations, used during the entire shaping process */
37 #define unicode_props0() var2.u8[0]
38 #define unicode_props1() var2.u8[1]
42 struct hb_ot_shape_plan_t
44 hb_segment_properties_t props;
45 const struct hb_ot_complex_shaper_t *shaper;
49 inline void collect_lookups (hb_tag_t table_tag, hb_set_t *lookups) const
51 unsigned int table_index;
53 case HB_OT_TAG_GSUB: table_index = 0; break;
54 case HB_OT_TAG_GPOS: table_index = 1; break;
57 map.collect_lookups (table_index, lookups);
59 inline void substitute (hb_font_t *font, hb_buffer_t *buffer) const { map.substitute (this, font, buffer); }
60 inline void position (hb_font_t *font, hb_buffer_t *buffer) const { map.position (this, font, buffer); }
62 void finish (void) { map.finish (); }
65 struct hb_ot_shape_planner_t
67 /* In the order that they are filled in. */
69 hb_segment_properties_t props;
70 const struct hb_ot_complex_shaper_t *shaper;
71 hb_ot_map_builder_t map;
73 hb_ot_shape_planner_t (const hb_shape_plan_t *master_plan) :
74 face (master_plan->face),
75 props (master_plan->props),
78 ~hb_ot_shape_planner_t (void) { map.finish (); }
80 inline void compile (hb_ot_shape_plan_t &plan)
84 map.compile (plan.map);
88 NO_COPY (hb_ot_shape_planner_t);
94 _hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode)
96 info->unicode_props0() = ((unsigned int) unicode->general_category (info->codepoint)) |
97 (unicode->is_default_ignorable (info->codepoint) ? 0x80 : 0);
98 info->unicode_props1() = unicode->modified_combining_class (info->codepoint);
101 inline hb_unicode_general_category_t
102 _hb_glyph_info_get_general_category (const hb_glyph_info_t *info)
104 return (hb_unicode_general_category_t) (info->unicode_props0() & 0x7F);
108 _hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info, unsigned int modified_class)
110 info->unicode_props1() = modified_class;
114 _hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info)
116 return info->unicode_props1();
120 _hb_glyph_info_is_default_ignorable (const hb_glyph_info_t *info)
122 return !!(info->unicode_props0() & 0x80);
125 #endif /* HB_OT_SHAPE_PRIVATE_HH */