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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-ot-shape-private.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-ot-shape-private.hh | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-ot-shape-private.hh b/Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-ot-shape-private.hh new file mode 100644 index 00000000000..54ac2c3cf7c --- /dev/null +++ b/Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-ot-shape-private.hh @@ -0,0 +1,104 @@ +/* + * Copyright © 2010 Google, Inc. + * + * This is part of HarfBuzz, a text shaping library. + * + * Permission is hereby granted, without written agreement and without + * license or royalty fees, to use, copy, modify, and distribute this + * software and its documentation for any purpose, provided that the + * above copyright notice and the following two paragraphs appear in + * all copies of this software. + * + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + * + * Google Author(s): Behdad Esfahbod + */ + +#ifndef HB_OT_SHAPE_PRIVATE_HH +#define HB_OT_SHAPE_PRIVATE_HH + +#include "hb-private.hh" + +#include "hb-ot-map-private.hh" +#include "hb-ot-layout-private.hh" + + + +struct hb_ot_shape_plan_t +{ + hb_segment_properties_t props; + const struct hb_ot_complex_shaper_t *shaper; + hb_ot_map_t map; + const void *data; + hb_mask_t rtlm_mask, frac_mask, numr_mask, dnom_mask; + hb_mask_t kern_mask; + unsigned int has_frac : 1; + unsigned int has_kern : 1; + unsigned int has_mark : 1; + + inline void collect_lookups (hb_tag_t table_tag, hb_set_t *lookups) const + { + unsigned int table_index; + switch (table_tag) { + case HB_OT_TAG_GSUB: table_index = 0; break; + case HB_OT_TAG_GPOS: table_index = 1; break; + default: return; + } + map.collect_lookups (table_index, lookups); + } + inline void substitute (hb_font_t *font, hb_buffer_t *buffer) const { map.substitute (this, font, buffer); } + inline void position (hb_font_t *font, hb_buffer_t *buffer) const { map.position (this, font, buffer); } + + void finish (void) { map.finish (); } +}; + +struct hb_ot_shape_planner_t +{ + /* In the order that they are filled in. */ + hb_face_t *face; + hb_segment_properties_t props; + const struct hb_ot_complex_shaper_t *shaper; + hb_ot_map_builder_t map; + + hb_ot_shape_planner_t (const hb_shape_plan_t *master_plan) : + face (master_plan->face_unsafe), + props (master_plan->props), + shaper (NULL), + map (face, &props) {} + ~hb_ot_shape_planner_t (void) { map.finish (); } + + inline void compile (hb_ot_shape_plan_t &plan) + { + plan.props = props; + plan.shaper = shaper; + map.compile (plan.map); + + plan.rtlm_mask = plan.map.get_1_mask (HB_TAG ('r','t','l','m')); + plan.frac_mask = plan.map.get_1_mask (HB_TAG ('f','r','a','c')); + plan.numr_mask = plan.map.get_1_mask (HB_TAG ('n','u','m','r')); + plan.dnom_mask = plan.map.get_1_mask (HB_TAG ('d','n','o','m')); + + plan.kern_mask = plan.map.get_mask (HB_DIRECTION_IS_HORIZONTAL (plan.props.direction) ? + HB_TAG ('k','e','r','n') : HB_TAG ('v','k','r','n')); + + plan.has_frac = plan.frac_mask || (plan.numr_mask && plan.dnom_mask); + plan.has_kern = !!plan.kern_mask; + plan.has_mark = !!plan.map.get_1_mask (HB_TAG ('m','a','r','k')); + } + + private: + NO_COPY (hb_ot_shape_planner_t); +}; + + +#endif /* HB_OT_SHAPE_PRIVATE_HH */ |