diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.7/src/hb-ot-shape-private.hh')
| -rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-0.9.7/src/hb-ot-shape-private.hh | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.7/src/hb-ot-shape-private.hh b/Build/source/libs/harfbuzz/harfbuzz-0.9.7/src/hb-ot-shape-private.hh new file mode 100644 index 00000000000..23e80b7bdfa --- /dev/null +++ b/Build/source/libs/harfbuzz/harfbuzz-0.9.7/src/hb-ot-shape-private.hh @@ -0,0 +1,125 @@ +/* + * 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" + + + +/* buffer var allocations, used during the entire shaping process */ +#define unicode_props0() var2.u8[0] +#define unicode_props1() var2.u8[1] + + + +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; + + 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), + 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); + } + + private: + NO_COPY (hb_ot_shape_planner_t); +}; + + + +inline void +_hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode) +{ + info->unicode_props0() = ((unsigned int) unicode->general_category (info->codepoint)) | + (unicode->is_default_ignorable (info->codepoint) ? 0x80 : 0); + info->unicode_props1() = unicode->modified_combining_class (info->codepoint); +} + +inline hb_unicode_general_category_t +_hb_glyph_info_get_general_category (const hb_glyph_info_t *info) +{ + return (hb_unicode_general_category_t) (info->unicode_props0() & 0x7F); +} + +inline void +_hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info, unsigned int modified_class) +{ + info->unicode_props1() = modified_class; +} + +inline unsigned int +_hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info) +{ + return info->unicode_props1(); +} + +inline hb_bool_t +_hb_glyph_info_is_default_ignorable (const hb_glyph_info_t *info) +{ + return !!(info->unicode_props0() & 0x80); +} + +#endif /* HB_OT_SHAPE_PRIVATE_HH */ |