diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-use.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-use.cc | 224 |
1 files changed, 98 insertions, 126 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-use.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-use.cc index 2cc5ea27861..1ea2957f261 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-use.cc +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-use.cc @@ -26,6 +26,10 @@ * Google Author(s): Behdad Esfahbod */ +#include "hb.hh" + +#ifndef HB_NO_OT_SHAPE + #include "hb-ot-shape-complex-use.hh" #include "hb-ot-shape-complex-arabic.hh" #include "hb-ot-shape-complex-vowel-constraints.hh" @@ -40,7 +44,7 @@ */ static const hb_tag_t -basic_features[] = +use_basic_features[] = { /* * Basic features. @@ -55,28 +59,23 @@ basic_features[] = HB_TAG('c','j','c','t'), }; static const hb_tag_t -arabic_features[] = +use_topographical_features[] = { HB_TAG('i','s','o','l'), HB_TAG('i','n','i','t'), HB_TAG('m','e','d','i'), HB_TAG('f','i','n','a'), - /* The spec doesn't specify these but we apply anyway, since our Arabic shaper - * does. These are only used in Syriac spec. */ - HB_TAG('m','e','d','2'), - HB_TAG('f','i','n','2'), - HB_TAG('f','i','n','3'), }; -/* Same order as arabic_features. Don't need Syriac stuff.*/ +/* Same order as use_topographical_features. */ enum joining_form_t { - ISOL, - INIT, - MEDI, - FINA, - _NONE + USE_ISOL, + USE_INIT, + USE_MEDI, + USE_FINA, + _USE_NONE }; static const hb_tag_t -other_features[] = +use_other_features[] = { /* * Other features. @@ -90,7 +89,7 @@ other_features[] = HB_TAG('p','s','t','s'), }; static const hb_tag_t -positioning_features[] = +use_positioning_features[] = { /* * Positioning features. @@ -102,29 +101,21 @@ positioning_features[] = }; static void -setup_syllables (const hb_ot_shape_plan_t *plan, +setup_syllables_use (const hb_ot_shape_plan_t *plan, + hb_font_t *font, + hb_buffer_t *buffer); +static void +record_rphf_use (const hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer); static void -clear_substitution_flags (const hb_ot_shape_plan_t *plan, - hb_font_t *font, - hb_buffer_t *buffer); -static void -record_rphf (const hb_ot_shape_plan_t *plan, - hb_font_t *font, - hb_buffer_t *buffer); +record_pref_use (const hb_ot_shape_plan_t *plan, + hb_font_t *font, + hb_buffer_t *buffer); static void -record_pref (const hb_ot_shape_plan_t *plan, +reorder_use (const hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer); -static void -reorder (const hb_ot_shape_plan_t *plan, - hb_font_t *font, - hb_buffer_t *buffer); -static void -clear_syllables (const hb_ot_shape_plan_t *plan, - hb_font_t *font, - hb_buffer_t *buffer); static void collect_features_use (hb_ot_shape_planner_t *plan) @@ -132,7 +123,7 @@ collect_features_use (hb_ot_shape_planner_t *plan) hb_ot_map_builder_t *map = &plan->map; /* Do this before any lookups have been applied. */ - map->add_gsub_pause (setup_syllables); + map->add_gsub_pause (setup_syllables_use); /* "Default glyph pre-processing group" */ map->enable_feature (HB_TAG('l','o','c','l')); @@ -141,32 +132,32 @@ collect_features_use (hb_ot_shape_planner_t *plan) map->enable_feature (HB_TAG('a','k','h','n'), F_MANUAL_ZWJ); /* "Reordering group" */ - map->add_gsub_pause (clear_substitution_flags); + map->add_gsub_pause (_hb_clear_substitution_flags); map->add_feature (HB_TAG('r','p','h','f'), F_MANUAL_ZWJ); - map->add_gsub_pause (record_rphf); - map->add_gsub_pause (clear_substitution_flags); + map->add_gsub_pause (record_rphf_use); + map->add_gsub_pause (_hb_clear_substitution_flags); map->enable_feature (HB_TAG('p','r','e','f'), F_MANUAL_ZWJ); - map->add_gsub_pause (record_pref); + map->add_gsub_pause (record_pref_use); /* "Orthographic unit shaping group" */ - for (unsigned int i = 0; i < ARRAY_LENGTH (basic_features); i++) - map->enable_feature (basic_features[i], F_MANUAL_ZWJ); + for (unsigned int i = 0; i < ARRAY_LENGTH (use_basic_features); i++) + map->enable_feature (use_basic_features[i], F_MANUAL_ZWJ); - map->add_gsub_pause (reorder); - map->add_gsub_pause (clear_syllables); + map->add_gsub_pause (reorder_use); + map->add_gsub_pause (_hb_clear_syllables); /* "Topographical features" */ - for (unsigned int i = 0; i < ARRAY_LENGTH (arabic_features); i++) - map->add_feature (arabic_features[i]); + for (unsigned int i = 0; i < ARRAY_LENGTH (use_topographical_features); i++) + map->add_feature (use_topographical_features[i]); map->add_gsub_pause (nullptr); /* "Standard typographic presentation" */ - for (unsigned int i = 0; i < ARRAY_LENGTH (other_features); i++) - map->enable_feature (other_features[i], F_MANUAL_ZWJ); + for (unsigned int i = 0; i < ARRAY_LENGTH (use_other_features); i++) + map->enable_feature (use_other_features[i], F_MANUAL_ZWJ); /* "Positional feature application" */ - for (unsigned int i = 0; i < ARRAY_LENGTH (positioning_features); i++) - map->enable_feature (positioning_features[i]); + for (unsigned int i = 0; i < ARRAY_LENGTH (use_positioning_features); i++) + map->enable_feature (use_positioning_features[i]); } struct use_shape_plan_t @@ -243,16 +234,16 @@ data_destroy_use (void *data) free (data); } -enum syllable_type_t { - independent_cluster, - virama_terminated_cluster, - sakot_terminated_cluster, - standard_cluster, - number_joiner_terminated_cluster, - numeral_cluster, - symbol_cluster, - broken_cluster, - non_cluster, +enum use_syllable_type_t { + use_independent_cluster, + use_virama_terminated_cluster, + use_sakot_terminated_cluster, + use_standard_cluster, + use_number_joiner_terminated_cluster, + use_numeral_cluster, + use_symbol_cluster, + use_broken_cluster, + use_non_cluster, }; #include "hb-ot-shape-complex-use-machine.hh" @@ -309,11 +300,11 @@ setup_topographical_masks (const hb_ot_shape_plan_t *plan, if (use_plan->arabic_plan) return; - static_assert ((INIT < 4 && ISOL < 4 && MEDI < 4 && FINA < 4), ""); + static_assert ((USE_INIT < 4 && USE_ISOL < 4 && USE_MEDI < 4 && USE_FINA < 4), ""); hb_mask_t masks[4], all_masks = 0; for (unsigned int i = 0; i < 4; i++) { - masks[i] = plan->map.get_1_mask (arabic_features[i]); + masks[i] = plan->map.get_1_mask (use_topographical_features[i]); if (masks[i] == plan->map.get_global_mask ()) masks[i] = 0; all_masks |= masks[i]; @@ -323,39 +314,39 @@ setup_topographical_masks (const hb_ot_shape_plan_t *plan, hb_mask_t other_masks = ~all_masks; unsigned int last_start = 0; - joining_form_t last_form = _NONE; + joining_form_t last_form = _USE_NONE; hb_glyph_info_t *info = buffer->info; foreach_syllable (buffer, start, end) { - syllable_type_t syllable_type = (syllable_type_t) (info[start].syllable() & 0x0F); + use_syllable_type_t syllable_type = (use_syllable_type_t) (info[start].syllable() & 0x0F); switch (syllable_type) { - case independent_cluster: - case symbol_cluster: - case non_cluster: + case use_independent_cluster: + case use_symbol_cluster: + case use_non_cluster: /* These don't join. Nothing to do. */ - last_form = _NONE; + last_form = _USE_NONE; break; - case virama_terminated_cluster: - case sakot_terminated_cluster: - case standard_cluster: - case number_joiner_terminated_cluster: - case numeral_cluster: - case broken_cluster: + case use_virama_terminated_cluster: + case use_sakot_terminated_cluster: + case use_standard_cluster: + case use_number_joiner_terminated_cluster: + case use_numeral_cluster: + case use_broken_cluster: - bool join = last_form == FINA || last_form == ISOL; + bool join = last_form == USE_FINA || last_form == USE_ISOL; if (join) { /* Fixup previous syllable's form. */ - last_form = last_form == FINA ? MEDI : INIT; + last_form = last_form == USE_FINA ? USE_MEDI : USE_INIT; for (unsigned int i = last_start; i < start; i++) info[i].mask = (info[i].mask & other_masks) | masks[last_form]; } /* Form for this syllable. */ - last_form = join ? FINA : ISOL; + last_form = join ? USE_FINA : USE_ISOL; for (unsigned int i = start; i < end; i++) info[i].mask = (info[i].mask & other_masks) | masks[last_form]; @@ -367,11 +358,11 @@ setup_topographical_masks (const hb_ot_shape_plan_t *plan, } static void -setup_syllables (const hb_ot_shape_plan_t *plan, - hb_font_t *font HB_UNUSED, - hb_buffer_t *buffer) +setup_syllables_use (const hb_ot_shape_plan_t *plan, + hb_font_t *font HB_UNUSED, + hb_buffer_t *buffer) { - find_syllables (buffer); + find_syllables_use (buffer); foreach_syllable (buffer, start, end) buffer->unsafe_to_break (start, end); setup_rphf_mask (plan, buffer); @@ -379,20 +370,9 @@ setup_syllables (const hb_ot_shape_plan_t *plan, } static void -clear_substitution_flags (const hb_ot_shape_plan_t *plan HB_UNUSED, - hb_font_t *font HB_UNUSED, - hb_buffer_t *buffer) -{ - hb_glyph_info_t *info = buffer->info; - unsigned int count = buffer->len; - for (unsigned int i = 0; i < count; i++) - _hb_glyph_info_clear_substituted (&info[i]); -} - -static void -record_rphf (const hb_ot_shape_plan_t *plan, - hb_font_t *font HB_UNUSED, - hb_buffer_t *buffer) +record_rphf_use (const hb_ot_shape_plan_t *plan, + hb_font_t *font HB_UNUSED, + hb_buffer_t *buffer) { const use_shape_plan_t *use_plan = (const use_shape_plan_t *) plan->data; @@ -413,9 +393,9 @@ record_rphf (const hb_ot_shape_plan_t *plan, } static void -record_pref (const hb_ot_shape_plan_t *plan HB_UNUSED, - hb_font_t *font HB_UNUSED, - hb_buffer_t *buffer) +record_pref_use (const hb_ot_shape_plan_t *plan HB_UNUSED, + hb_font_t *font HB_UNUSED, + hb_buffer_t *buffer) { hb_glyph_info_t *info = buffer->info; @@ -432,22 +412,22 @@ record_pref (const hb_ot_shape_plan_t *plan HB_UNUSED, } static inline bool -is_halant (const hb_glyph_info_t &info) +is_halant_use (const hb_glyph_info_t &info) { return (info.use_category() == USE_H || info.use_category() == USE_HVM) && !_hb_glyph_info_ligated (&info); } static void -reorder_syllable (hb_buffer_t *buffer, unsigned int start, unsigned int end) +reorder_syllable_use (hb_buffer_t *buffer, unsigned int start, unsigned int end) { - syllable_type_t syllable_type = (syllable_type_t) (buffer->info[start].syllable() & 0x0F); + use_syllable_type_t syllable_type = (use_syllable_type_t) (buffer->info[start].syllable() & 0x0F); /* Only a few syllable types need reordering. */ if (unlikely (!(FLAG_UNSAFE (syllable_type) & - (FLAG (virama_terminated_cluster) | - FLAG (sakot_terminated_cluster) | - FLAG (standard_cluster) | - FLAG (broken_cluster) | + (FLAG (use_virama_terminated_cluster) | + FLAG (use_sakot_terminated_cluster) | + FLAG (use_standard_cluster) | + FLAG (use_broken_cluster) | 0)))) return; @@ -478,7 +458,7 @@ reorder_syllable (hb_buffer_t *buffer, unsigned int start, unsigned int end) for (unsigned int i = start + 1; i < end; i++) { bool is_post_base_glyph = (FLAG64_UNSAFE (info[i].use_category()) & POST_BASE_FLAGS64) || - is_halant (info[i]); + is_halant_use (info[i]); if (is_post_base_glyph || i == end - 1) { /* If we hit a post-base glyph, move before it; otherwise move to the @@ -502,7 +482,7 @@ reorder_syllable (hb_buffer_t *buffer, unsigned int start, unsigned int end) for (unsigned int i = start; i < end; i++) { uint32_t flag = FLAG_UNSAFE (info[i].use_category()); - if (is_halant (info[i])) + if (is_halant_use (info[i])) { /* If we hit a halant, move after it; otherwise move to the beginning, and * shift things in between forward. */ @@ -522,9 +502,9 @@ reorder_syllable (hb_buffer_t *buffer, unsigned int start, unsigned int end) } static inline void -insert_dotted_circles (const hb_ot_shape_plan_t *plan HB_UNUSED, - hb_font_t *font, - hb_buffer_t *buffer) +insert_dotted_circles_use (const hb_ot_shape_plan_t *plan HB_UNUSED, + hb_font_t *font, + hb_buffer_t *buffer) { if (unlikely (buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE)) return; @@ -535,7 +515,7 @@ insert_dotted_circles (const hb_ot_shape_plan_t *plan HB_UNUSED, unsigned int count = buffer->len; hb_glyph_info_t *info = buffer->info; for (unsigned int i = 0; i < count; i++) - if ((info[i].syllable() & 0x0F) == broken_cluster) + if ((info[i].syllable() & 0x0F) == use_broken_cluster) { has_broken_syllables = true; break; @@ -555,8 +535,8 @@ insert_dotted_circles (const hb_ot_shape_plan_t *plan HB_UNUSED, while (buffer->idx < buffer->len && buffer->successful) { unsigned int syllable = buffer->cur().syllable(); - syllable_type_t syllable_type = (syllable_type_t) (syllable & 0x0F); - if (unlikely (last_syllable != syllable && syllable_type == broken_cluster)) + use_syllable_type_t syllable_type = (use_syllable_type_t) (syllable & 0x0F); + if (unlikely (last_syllable != syllable && syllable_type == use_broken_cluster)) { last_syllable = syllable; @@ -580,29 +560,18 @@ insert_dotted_circles (const hb_ot_shape_plan_t *plan HB_UNUSED, } static void -reorder (const hb_ot_shape_plan_t *plan, - hb_font_t *font, - hb_buffer_t *buffer) +reorder_use (const hb_ot_shape_plan_t *plan, + hb_font_t *font, + hb_buffer_t *buffer) { - insert_dotted_circles (plan, font, buffer); + insert_dotted_circles_use (plan, font, buffer); foreach_syllable (buffer, start, end) - reorder_syllable (buffer, start, end); + reorder_syllable_use (buffer, start, end); HB_BUFFER_DEALLOCATE_VAR (buffer, use_category); } -static void -clear_syllables (const hb_ot_shape_plan_t *plan HB_UNUSED, - hb_font_t *font HB_UNUSED, - hb_buffer_t *buffer) -{ - hb_glyph_info_t *info = buffer->info; - unsigned int count = buffer->len; - for (unsigned int i = 0; i < count; i++) - info[i].syllable() = 0; -} - static void preprocess_text_use (const hb_ot_shape_plan_t *plan, @@ -643,3 +612,6 @@ const hb_ot_complex_shaper_t _hb_ot_complex_shaper_use = HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY, false, /* fallback_position */ }; + + +#endif |