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 substitute_closure (hb_face_t *face, hb_set_t *glyphs) const { map.substitute_closure (this, face, glyphs); }
50 inline void substitute (hb_font_t *font, hb_buffer_t *buffer) const { map.substitute (this, font, buffer); }
51 inline void position (hb_font_t *font, hb_buffer_t *buffer) const { map.position (this, font, buffer); }
53 void finish (void) { map.finish (); }
56 struct hb_ot_shape_planner_t
58 /* In the order that they are filled in. */
60 hb_segment_properties_t props;
61 const struct hb_ot_complex_shaper_t *shaper;
62 hb_ot_map_builder_t map;
64 hb_ot_shape_planner_t (const hb_shape_plan_t *master_plan) :
65 face (master_plan->face),
66 props (master_plan->props),
69 ~hb_ot_shape_planner_t (void) { map.finish (); }
71 inline void compile (hb_ot_shape_plan_t &plan)
75 map.compile (face, &props, plan.map);
79 NO_COPY (hb_ot_shape_planner_t);
85 _hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode)
87 info->unicode_props0() = ((unsigned int) unicode->general_category (info->codepoint)) |
88 (unicode->is_zero_width (info->codepoint) ? 0x80 : 0);
89 info->unicode_props1() = unicode->modified_combining_class (info->codepoint);
92 inline hb_unicode_general_category_t
93 _hb_glyph_info_get_general_category (const hb_glyph_info_t *info)
95 return (hb_unicode_general_category_t) (info->unicode_props0() & 0x7F);
99 _hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info)
101 return info->unicode_props1();
105 _hb_glyph_info_is_zero_width (const hb_glyph_info_t *info)
107 return !!(info->unicode_props0() & 0x80);
110 #endif /* HB_OT_SHAPE_PRIVATE_HH */