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-layout-private.hh" 34 35 36 37 struct hb_ot_shape_plan_t 38 { 39 hb_segment_properties_t props; 40 const struct hb_ot_complex_shaper_t *shaper; 41 hb_ot_map_t map; 42 const void *data; 43 44 inline void collect_lookups (hb_tag_t table_tag, hb_set_t *lookups) const 45 { 46 unsigned int table_index; 47 switch (table_tag) { 48 case HB_OT_TAG_GSUB: table_index = 0; break; 49 case HB_OT_TAG_GPOS: table_index = 1; break; 50 default: return; 51 } 52 map.collect_lookups (table_index, lookups); 53 } 54 inline void substitute (hb_font_t *font, hb_buffer_t *buffer) const { map.substitute (this, font, buffer); } 55 inline void position (hb_font_t *font, hb_buffer_t *buffer) const { map.position (this, font, buffer); } 56 57 void finish (void) { map.finish (); } 58 }; 59 60 struct hb_ot_shape_planner_t 61 { 62 /* In the order that they are filled in. */ 63 hb_face_t *face; 64 hb_segment_properties_t props; 65 const struct hb_ot_complex_shaper_t *shaper; 66 hb_ot_map_builder_t map; 67 68 hb_ot_shape_planner_t (const hb_shape_plan_t *master_plan) : 69 face (master_plan->face), 70 props (master_plan->props), 71 shaper (NULL), 72 map (face, &props) {} 73 ~hb_ot_shape_planner_t (void) { map.finish (); } 74 75 inline void compile (hb_ot_shape_plan_t &plan) 76 { 77 plan.props = props; 78 plan.shaper = shaper; 79 map.compile (plan.map); 80 } 81 82 private: 83 NO_COPY (hb_ot_shape_planner_t); 84 }; 85 86 87 #endif /* HB_OT_SHAPE_PRIVATE_HH */ 88
