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-shape.h"
34 #include "hb-ot-map-private.hh"
35 #include "hb-ot-shape-complex-private.hh"
40 enum hb_ot_complex_shaper_t;
42 struct hb_ot_shape_plan_t
44 friend struct hb_ot_shape_planner_t;
47 hb_ot_complex_shaper_t shaper;
49 hb_ot_shape_plan_t (void) : map () {}
50 ~hb_ot_shape_plan_t (void) { map.finish (); }
53 NO_COPY (hb_ot_shape_plan_t);
56 struct hb_ot_shape_planner_t
58 hb_ot_map_builder_t map;
59 hb_ot_complex_shaper_t shaper;
61 hb_ot_shape_planner_t (void) : map () {}
62 ~hb_ot_shape_planner_t (void) { map.finish (); }
64 inline void compile (hb_face_t *face,
65 const hb_segment_properties_t *props,
66 struct hb_ot_shape_plan_t &plan)
69 map.compile (face, props, plan.map);
73 NO_COPY (hb_ot_shape_planner_t);
77 struct hb_ot_shape_context_t
79 /* Input to hb_ot_shape_execute() */
80 hb_ot_shape_plan_t *plan;
84 const hb_feature_t *user_features;
85 unsigned int num_user_features;
88 hb_direction_t target_direction;
89 hb_bool_t applied_substitute_complex;
90 hb_bool_t applied_position_complex;
94 static inline hb_bool_t
95 is_variation_selector (hb_codepoint_t unicode)
97 return unlikely ((unicode >= 0x180B && unicode <= 0x180D) || /* MONGOLIAN FREE VARIATION SELECTOR ONE..THREE */
98 (unicode >= 0xFE00 && unicode <= 0xFE0F) || /* VARIATION SELECTOR-1..16 */
99 (unicode >= 0xE0100 && unicode <= 0xE01EF)); /* VARIATION SELECTOR-17..256 */
103 hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode)
105 info->general_category() = hb_unicode_general_category (unicode, info->codepoint);
106 info->combining_class() = hb_unicode_combining_class (unicode, info->codepoint);
109 HB_INTERNAL void _hb_set_unicode_props (hb_buffer_t *buffer);
111 HB_INTERNAL void _hb_ot_shape_normalize (hb_ot_shape_context_t *c);
115 #endif /* HB_OT_SHAPE_PRIVATE_HH */