gfx/harfbuzz/src/hb-ot-shape-private.hh@925c144e1f1f (annotated)
gfx/harfbuzz/src/hb-ot-shape-private.hh
Fri, 16 Jan 2015 18:13:44 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 18:13:44 +0100
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
- permissions
- -rw-r--r--
Integrate suggestion from review to improve consistency with existing code.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright © 2010 Google, Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * This is part of HarfBuzz, a text shaping library. |
| michael@0 | 5 | * |
| michael@0 | 6 | * Permission is hereby granted, without written agreement and without |
| michael@0 | 7 | * license or royalty fees, to use, copy, modify, and distribute this |
| michael@0 | 8 | * software and its documentation for any purpose, provided that the |
| michael@0 | 9 | * above copyright notice and the following two paragraphs appear in |
| michael@0 | 10 | * all copies of this software. |
| michael@0 | 11 | * |
| michael@0 | 12 | * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| michael@0 | 13 | * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| michael@0 | 14 | * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| michael@0 | 15 | * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| michael@0 | 16 | * DAMAGE. |
| michael@0 | 17 | * |
| michael@0 | 18 | * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| michael@0 | 19 | * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| michael@0 | 20 | * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| michael@0 | 21 | * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| michael@0 | 22 | * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| michael@0 | 23 | * |
| michael@0 | 24 | * Google Author(s): Behdad Esfahbod |
| michael@0 | 25 | */ |
| michael@0 | 26 | |
| michael@0 | 27 | #ifndef HB_OT_SHAPE_PRIVATE_HH |
| michael@0 | 28 | #define HB_OT_SHAPE_PRIVATE_HH |
| michael@0 | 29 | |
| michael@0 | 30 | #include "hb-private.hh" |
| michael@0 | 31 | |
| michael@0 | 32 | #include "hb-ot-map-private.hh" |
| michael@0 | 33 | #include "hb-ot-layout-private.hh" |
| michael@0 | 34 | |
| michael@0 | 35 | |
| michael@0 | 36 | |
| michael@0 | 37 | struct hb_ot_shape_plan_t |
| michael@0 | 38 | { |
| michael@0 | 39 | hb_segment_properties_t props; |
| michael@0 | 40 | const struct hb_ot_complex_shaper_t *shaper; |
| michael@0 | 41 | hb_ot_map_t map; |
| michael@0 | 42 | const void *data; |
| michael@0 | 43 | hb_mask_t rtlm_mask, frac_mask, numr_mask, dnom_mask; |
| michael@0 | 44 | hb_mask_t kern_mask; |
| michael@0 | 45 | unsigned int has_frac : 1; |
| michael@0 | 46 | unsigned int has_kern : 1; |
| michael@0 | 47 | |
| michael@0 | 48 | inline void collect_lookups (hb_tag_t table_tag, hb_set_t *lookups) const |
| michael@0 | 49 | { |
| michael@0 | 50 | unsigned int table_index; |
| michael@0 | 51 | switch (table_tag) { |
| michael@0 | 52 | case HB_OT_TAG_GSUB: table_index = 0; break; |
| michael@0 | 53 | case HB_OT_TAG_GPOS: table_index = 1; break; |
| michael@0 | 54 | default: return; |
| michael@0 | 55 | } |
| michael@0 | 56 | map.collect_lookups (table_index, lookups); |
| michael@0 | 57 | } |
| michael@0 | 58 | inline void substitute (hb_font_t *font, hb_buffer_t *buffer) const { map.substitute (this, font, buffer); } |
| michael@0 | 59 | inline void position (hb_font_t *font, hb_buffer_t *buffer) const { map.position (this, font, buffer); } |
| michael@0 | 60 | |
| michael@0 | 61 | void finish (void) { map.finish (); } |
| michael@0 | 62 | }; |
| michael@0 | 63 | |
| michael@0 | 64 | struct hb_ot_shape_planner_t |
| michael@0 | 65 | { |
| michael@0 | 66 | /* In the order that they are filled in. */ |
| michael@0 | 67 | hb_face_t *face; |
| michael@0 | 68 | hb_segment_properties_t props; |
| michael@0 | 69 | const struct hb_ot_complex_shaper_t *shaper; |
| michael@0 | 70 | hb_ot_map_builder_t map; |
| michael@0 | 71 | |
| michael@0 | 72 | hb_ot_shape_planner_t (const hb_shape_plan_t *master_plan) : |
| michael@0 | 73 | face (master_plan->face_unsafe), |
| michael@0 | 74 | props (master_plan->props), |
| michael@0 | 75 | shaper (NULL), |
| michael@0 | 76 | map (face, &props) {} |
| michael@0 | 77 | ~hb_ot_shape_planner_t (void) { map.finish (); } |
| michael@0 | 78 | |
| michael@0 | 79 | inline void compile (hb_ot_shape_plan_t &plan) |
| michael@0 | 80 | { |
| michael@0 | 81 | plan.props = props; |
| michael@0 | 82 | plan.shaper = shaper; |
| michael@0 | 83 | map.compile (plan.map); |
| michael@0 | 84 | |
| michael@0 | 85 | plan.rtlm_mask = plan.map.get_1_mask (HB_TAG ('r','t','l','m')); |
| michael@0 | 86 | plan.frac_mask = plan.map.get_1_mask (HB_TAG ('f','r','a','c')); |
| michael@0 | 87 | plan.numr_mask = plan.map.get_1_mask (HB_TAG ('n','u','m','r')); |
| michael@0 | 88 | plan.dnom_mask = plan.map.get_1_mask (HB_TAG ('d','n','o','m')); |
| michael@0 | 89 | |
| michael@0 | 90 | plan.kern_mask = plan.map.get_mask (HB_DIRECTION_IS_HORIZONTAL (plan.props.direction) ? |
| michael@0 | 91 | HB_TAG ('k','e','r','n') : HB_TAG ('v','k','r','n')); |
| michael@0 | 92 | |
| michael@0 | 93 | plan.has_frac = plan.frac_mask || (plan.numr_mask && plan.dnom_mask); |
| michael@0 | 94 | plan.has_kern = !!plan.kern_mask; |
| michael@0 | 95 | } |
| michael@0 | 96 | |
| michael@0 | 97 | private: |
| michael@0 | 98 | NO_COPY (hb_ot_shape_planner_t); |
| michael@0 | 99 | }; |
| michael@0 | 100 | |
| michael@0 | 101 | |
| michael@0 | 102 | #endif /* HB_OT_SHAPE_PRIVATE_HH */ |
