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"
39 /* buffer var allocations */
40 #define general_category() var1.u8[0] /* unicode general_category (hb_unicode_general_category_t) */
41 #define combining_class() var1.u8[1] /* unicode combining_class (uint8_t) */
44 enum hb_ot_complex_shaper_t {
45 hb_ot_complex_shaper_none,
46 hb_ot_complex_shaper_arabic,
47 hb_ot_complex_shaper_indic,
51 struct hb_ot_shape_plan_t
53 friend struct hb_ot_shape_planner_t;
56 hb_ot_complex_shaper_t shaper;
58 hb_ot_shape_plan_t (void) : map () {}
59 ~hb_ot_shape_plan_t (void) { map.finish (); }
62 NO_COPY (hb_ot_shape_plan_t);
65 struct hb_ot_shape_planner_t
67 hb_ot_map_builder_t map;
68 hb_ot_complex_shaper_t shaper;
70 hb_ot_shape_planner_t (void) : map () {}
71 ~hb_ot_shape_planner_t (void) { map.finish (); }
73 inline void compile (hb_face_t *face,
74 const hb_segment_properties_t *props,
75 struct hb_ot_shape_plan_t &plan)
78 map.compile (face, props, plan.map);
82 NO_COPY (hb_ot_shape_planner_t);
86 struct hb_ot_shape_context_t
88 /* Input to hb_ot_shape_execute() */
89 hb_ot_shape_plan_t *plan;
93 const hb_feature_t *user_features;
94 unsigned int num_user_features;
97 hb_direction_t target_direction;
98 hb_bool_t applied_substitute_complex;
99 hb_bool_t applied_position_complex;
105 #endif /* HB_OT_SHAPE_PRIVATE_HH */