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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-ot-map-private.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-ot-map-private.hh | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-ot-map-private.hh b/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-ot-map-private.hh deleted file mode 100644 index a679fb5990e..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-0.9.15/src/hb-ot-map-private.hh +++ /dev/null @@ -1,241 +0,0 @@ -/* - * Copyright © 2009,2010 Red Hat, Inc. - * Copyright © 2010,2011,2012 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. - * - * Red Hat Author(s): Behdad Esfahbod - * Google Author(s): Behdad Esfahbod - */ - -#ifndef HB_OT_MAP_PRIVATE_HH -#define HB_OT_MAP_PRIVATE_HH - -#include "hb-buffer-private.hh" - -#include "hb-ot-layout-private.hh" - - -static const hb_tag_t table_tags[2] = {HB_OT_TAG_GSUB, HB_OT_TAG_GPOS}; - -struct hb_ot_map_t -{ - friend struct hb_ot_map_builder_t; - - public: - - struct feature_map_t { - hb_tag_t tag; /* should be first for our bsearch to work */ - unsigned int index[2]; /* GSUB/GPOS */ - unsigned int stage[2]; /* GSUB/GPOS */ - unsigned int shift; - hb_mask_t mask; - hb_mask_t _1_mask; /* mask for value=1, for quick access */ - unsigned int needs_fallback : 1; - unsigned int auto_zwj : 1; - - static int cmp (const feature_map_t *a, const feature_map_t *b) - { return a->tag < b->tag ? -1 : a->tag > b->tag ? 1 : 0; } - }; - - struct lookup_map_t { - unsigned short index; - unsigned short auto_zwj : 1; - hb_mask_t mask; - - static int cmp (const lookup_map_t *a, const lookup_map_t *b) - { return a->index < b->index ? -1 : a->index > b->index ? 1 : 0; } - }; - - typedef void (*pause_func_t) (const struct hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer); - - struct pause_map_t { - unsigned int num_lookups; /* Cumulative */ - pause_func_t callback; - }; - - - hb_ot_map_t (void) { memset (this, 0, sizeof (*this)); } - - inline hb_mask_t get_global_mask (void) const { return global_mask; } - - inline hb_mask_t get_mask (hb_tag_t feature_tag, unsigned int *shift = NULL) const { - const feature_map_t *map = features.bsearch (&feature_tag); - if (shift) *shift = map ? map->shift : 0; - return map ? map->mask : 0; - } - - inline bool needs_fallback (hb_tag_t feature_tag) const { - const feature_map_t *map = features.bsearch (&feature_tag); - return map ? map->needs_fallback : false; - } - - inline hb_mask_t get_1_mask (hb_tag_t feature_tag) const { - const feature_map_t *map = features.bsearch (&feature_tag); - return map ? map->_1_mask : 0; - } - - inline unsigned int get_feature_index (unsigned int table_index, hb_tag_t feature_tag) const { - const feature_map_t *map = features.bsearch (&feature_tag); - return map ? map->index[table_index] : HB_OT_LAYOUT_NO_FEATURE_INDEX; - } - - inline unsigned int get_feature_stage (unsigned int table_index, hb_tag_t feature_tag) const { - const feature_map_t *map = features.bsearch (&feature_tag); - return map ? map->stage[table_index] : (unsigned int) -1; - } - - inline void get_stage_lookups (unsigned int table_index, unsigned int stage, - const struct lookup_map_t **plookups, unsigned int *lookup_count) const { - if (unlikely (stage == (unsigned int) -1)) { - *plookups = NULL; - *lookup_count = 0; - return; - } - assert (stage <= pauses[table_index].len); - unsigned int start = stage ? pauses[table_index][stage - 1].num_lookups : 0; - unsigned int end = stage < pauses[table_index].len ? pauses[table_index][stage].num_lookups : lookups[table_index].len; - *plookups = &lookups[table_index][start]; - *lookup_count = end - start; - } - - HB_INTERNAL void collect_lookups (unsigned int table_index, hb_set_t *lookups) const; - HB_INTERNAL void substitute (const struct hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const; - HB_INTERNAL void position (const struct hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const; - - inline void finish (void) { - features.finish (); - lookups[0].finish (); - lookups[1].finish (); - pauses[0].finish (); - pauses[1].finish (); - } - - public: - hb_tag_t chosen_script[2]; - bool found_script[2]; - - private: - - HB_INTERNAL void add_lookups (hb_face_t *face, - unsigned int table_index, - unsigned int feature_index, - hb_mask_t mask, - bool auto_zwj); - - hb_mask_t global_mask; - - hb_prealloced_array_t<feature_map_t, 8> features; - hb_prealloced_array_t<lookup_map_t, 32> lookups[2]; /* GSUB/GPOS */ - hb_prealloced_array_t<pause_map_t, 1> pauses[2]; /* GSUB/GPOS */ -}; - -enum hb_ot_map_feature_flags_t { - F_NONE = 0x0000, - F_GLOBAL = 0x0001, - F_HAS_FALLBACK = 0x0002, - F_MANUAL_ZWJ = 0x0004 -}; -/* Macro version for where const is desired. */ -#define F_COMBINE(l,r) (hb_ot_map_feature_flags_t ((unsigned int) (l) | (unsigned int) (r))) -inline hb_ot_map_feature_flags_t -operator | (hb_ot_map_feature_flags_t l, hb_ot_map_feature_flags_t r) -{ return hb_ot_map_feature_flags_t ((unsigned int) l | (unsigned int) r); } -inline hb_ot_map_feature_flags_t -operator & (hb_ot_map_feature_flags_t l, hb_ot_map_feature_flags_t r) -{ return hb_ot_map_feature_flags_t ((unsigned int) l & (unsigned int) r); } -inline hb_ot_map_feature_flags_t -operator ~ (hb_ot_map_feature_flags_t r) -{ return hb_ot_map_feature_flags_t (~(unsigned int) r); } -inline hb_ot_map_feature_flags_t& -operator |= (hb_ot_map_feature_flags_t &l, hb_ot_map_feature_flags_t r) -{ l = l | r; return l; } -inline hb_ot_map_feature_flags_t& -operator &= (hb_ot_map_feature_flags_t& l, hb_ot_map_feature_flags_t r) -{ l = l & r; return l; } - - -struct hb_ot_map_builder_t -{ - public: - - HB_INTERNAL hb_ot_map_builder_t (hb_face_t *face_, - const hb_segment_properties_t *props_); - - HB_INTERNAL void add_feature (hb_tag_t tag, unsigned int value, - hb_ot_map_feature_flags_t flags); - - inline void add_global_bool_feature (hb_tag_t tag) - { add_feature (tag, 1, F_GLOBAL); } - - inline void add_gsub_pause (hb_ot_map_t::pause_func_t pause_func) - { add_pause (0, pause_func); } - inline void add_gpos_pause (hb_ot_map_t::pause_func_t pause_func) - { add_pause (1, pause_func); } - - HB_INTERNAL void compile (struct hb_ot_map_t &m); - - inline void finish (void) { - feature_infos.finish (); - pauses[0].finish (); - pauses[1].finish (); - } - - private: - - struct feature_info_t { - hb_tag_t tag; - unsigned int seq; /* sequence#, used for stable sorting only */ - unsigned int max_value; - hb_ot_map_feature_flags_t flags; - unsigned int default_value; /* for non-global features, what should the unset glyphs take */ - unsigned int stage[2]; /* GSUB/GPOS */ - - static int cmp (const feature_info_t *a, const feature_info_t *b) - { return (a->tag != b->tag) ? (a->tag < b->tag ? -1 : 1) : (a->seq < b->seq ? -1 : 1); } - }; - - struct pause_info_t { - unsigned int stage; - hb_ot_map_t::pause_func_t callback; - }; - - HB_INTERNAL void add_pause (unsigned int table_index, hb_ot_map_t::pause_func_t pause_func); - - public: - - hb_face_t *face; - hb_segment_properties_t props; - - hb_tag_t chosen_script[2]; - bool found_script[2]; - unsigned int script_index[2], language_index[2]; - - private: - - unsigned int current_stage[2]; /* GSUB/GPOS */ - hb_prealloced_array_t<feature_info_t,16> feature_infos; - hb_prealloced_array_t<pause_info_t, 1> pauses[2]; /* GSUB/GPOS */ -}; - - - -#endif /* HB_OT_MAP_PRIVATE_HH */ |