diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2019-08-14 22:15:47 +0000 |
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committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2019-08-14 22:15:47 +0000 |
commit | c34a1db4898940561d930b352086459acb246918 (patch) | |
tree | e8eed46f0b1fadd8924d05712b0c5d4f28194058 /Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh | |
parent | 5630d54170b9d8a8aabf2ad7e84c92840b86160d (diff) |
harfbuzz 2.6.0
git-svn-id: svn://tug.org/texlive/trunk@51882 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh | 142 |
1 files changed, 55 insertions, 87 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh index 0912362941a..7c00a1313eb 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout-base-table.hh @@ -1,7 +1,7 @@ /* - * Copyright © 2016 Elie Roux <elie.roux@telecom-bretagne.eu> + * Copyright © 2016 Elie Roux <elie.roux@telecom-bretagne.eu> * Copyright © 2018 Google, Inc. - * Copyright © 2018 Ebrahim Byagowi + * Copyright © 2018-2019 Ebrahim Byagowi * * This is part of HarfBuzz, a text shaping library. * @@ -32,9 +32,6 @@ #include "hb-open-type.hh" #include "hb-ot-layout-common.hh" -/* To be removed */ -typedef hb_tag_t hb_ot_layout_baseline_t; - namespace OT { /* @@ -116,9 +113,11 @@ struct BaseCoordFormat3 struct BaseCoord { - hb_position_t get_coord (hb_font_t *font, + bool has_data () const { return u.format; } + + hb_position_t get_coord (hb_font_t *font, const VariationStore &var_store, - hb_direction_t direction) const + hb_direction_t direction) const { switch (u.format) { case 1: return u.format1.get_coord (); @@ -142,10 +141,10 @@ struct BaseCoord protected: union { - HBUINT16 format; - BaseCoordFormat1 format1; - BaseCoordFormat2 format2; - BaseCoordFormat3 format3; + HBUINT16 format; + BaseCoordFormat1 format1; + BaseCoordFormat2 format2; + BaseCoordFormat3 format3; } u; public: DEFINE_SIZE_UNION (2, format); @@ -153,14 +152,9 @@ struct BaseCoord struct FeatMinMaxRecord { - HB_INTERNAL static int cmp (const void *key_, const void *entry_) - { - hb_tag_t key = * (hb_tag_t *) key_; - const FeatMinMaxRecord &entry = * (const FeatMinMaxRecord *) entry_; - return key < (unsigned int) entry.tag ? -1 : - key > (unsigned int) entry.tag ? 1 : - 0; - } + int cmp (hb_tag_t key) const { return tag.cmp (key); } + + bool has_data () const { return tag; } void get_min_max (const BaseCoord **min, const BaseCoord **max) const { @@ -195,17 +189,12 @@ struct FeatMinMaxRecord struct MinMax { void get_min_max (hb_tag_t feature_tag, - const BaseCoord **min, - const BaseCoord **max) const + const BaseCoord **min, + const BaseCoord **max) const { - /* TODO Replace hb_bsearch() with .bsearch(). */ - const FeatMinMaxRecord *minMaxCoord = (const FeatMinMaxRecord *) - hb_bsearch (&feature_tag, featMinMaxRecords.arrayZ, - featMinMaxRecords.len, - FeatMinMaxRecord::static_size, - FeatMinMaxRecord::cmp); - if (minMaxCoord) - minMaxCoord->get_min_max (min, max); + const FeatMinMaxRecord &minMaxCoord = featMinMaxRecords.bsearch (feature_tag); + if (minMaxCoord.has_data ()) + minMaxCoord.get_min_max (min, max); else { if (likely (min)) *min = &(this+minCoord); @@ -271,17 +260,11 @@ struct BaseValues struct BaseLangSysRecord { - HB_INTERNAL static int cmp (const void *key_, const void *entry_) - { - hb_tag_t key = * (hb_tag_t *) key_; - const BaseLangSysRecord &entry = * (const BaseLangSysRecord *) entry_; - return key < (unsigned int) entry.baseLangSysTag ? -1 : - key > (unsigned int) entry.baseLangSysTag ? 1 : - 0; - } + int cmp (hb_tag_t key) const { return baseLangSysTag.cmp (key); } + + bool has_data () const { return baseLangSysTag; } - const MinMax &get_min_max () const - { return this+minMax; } + const MinMax &get_min_max () const { return this+minMax; } bool sanitize (hb_sanitize_context_t *c, const void *base) const { @@ -303,19 +286,14 @@ struct BaseScript { const MinMax &get_min_max (hb_tag_t language_tag) const { - /* TODO Replace hb_bsearch() with .bsearch(). */ - const BaseLangSysRecord* record = (const BaseLangSysRecord *) - hb_bsearch (&language_tag, baseLangSysRecords.arrayZ, - baseLangSysRecords.len, - BaseLangSysRecord::static_size, - BaseLangSysRecord::cmp); - return record ? record->get_min_max () : this+defaultMinMax; + const BaseLangSysRecord& record = baseLangSysRecords.bsearch (language_tag); + return record.has_data () ? record.get_min_max () : this+defaultMinMax; } const BaseCoord &get_base_coord (int baseline_tag_index) const { return (this+baseValues).get_base_coord (baseline_tag_index); } - bool is_empty () const { return !baseValues; } + bool has_data () const { return baseValues; } bool sanitize (hb_sanitize_context_t *c) const { @@ -345,14 +323,9 @@ struct BaseScript struct BaseScriptList; struct BaseScriptRecord { - HB_INTERNAL static int cmp (const void *key_, const void *entry_) - { - hb_tag_t key = * (hb_tag_t *) key_; - const BaseScriptRecord &entry = * (const BaseScriptRecord *) entry_; - return key < (unsigned int) entry.baseScriptTag ? -1 : - key > (unsigned int) entry.baseScriptTag ? 1 : - 0; - } + int cmp (hb_tag_t key) const { return baseScriptTag.cmp (key); } + + bool has_data () const { return baseScriptTag; } const BaseScript &get_base_script (const BaseScriptList *list) const { return list+baseScript; } @@ -376,22 +349,11 @@ struct BaseScriptRecord struct BaseScriptList { - const BaseScriptRecord *find_record (hb_tag_t script) const - { - /* TODO Replace hb_bsearch() with .bsearch(). */ - return (const BaseScriptRecord *) hb_bsearch (&script, baseScriptRecords.arrayZ, - baseScriptRecords.len, - BaseScriptRecord::static_size, - BaseScriptRecord::cmp); - } - - /* TODO: Or client should handle fallback? */ const BaseScript &get_base_script (hb_tag_t script) const { - const BaseScriptRecord *record = find_record (script); - if (!record) record = find_record ((hb_script_t) HB_TAG ('D','F','L','T')); - - return record ? record->get_base_script (this) : Null (BaseScript); + const BaseScriptRecord *record = &baseScriptRecords.bsearch (script); + if (!record->has_data ()) record = &baseScriptRecords.bsearch (HB_TAG ('D','F','L','T')); + return record->has_data () ? record->get_base_script (this) : Null (BaseScript); } bool sanitize (hb_sanitize_context_t *c) const @@ -411,15 +373,20 @@ struct BaseScriptList struct Axis { - bool get_baseline (hb_ot_layout_baseline_t baseline, - hb_tag_t script_tag, - hb_tag_t language_tag, - const BaseCoord **coord) const + bool get_baseline (hb_tag_t baseline_tag, + hb_tag_t script_tag, + hb_tag_t language_tag, + const BaseCoord **coord) const { const BaseScript &base_script = (this+baseScriptList).get_base_script (script_tag); - if (base_script.is_empty ()) return false; + if (!base_script.has_data ()) return false; - if (likely (coord)) *coord = &base_script.get_base_coord ((this+baseTagList).bsearch (baseline)); + if (likely (coord)) + { + unsigned int tag_index = 0; + (this+baseTagList).bfind (baseline_tag, &tag_index); + *coord = &base_script.get_base_coord (tag_index); + } return true; } @@ -431,7 +398,7 @@ struct Axis const BaseCoord **max_coord) const { const BaseScript &base_script = (this+baseScriptList).get_base_script (script_tag); - if (base_script.is_empty ()) return false; + if (!base_script.has_data ()) return false; base_script.get_min_max (language_tag).get_min_max (feature_tag, min_coord, max_coord); @@ -472,20 +439,21 @@ struct BASE const VariationStore &get_var_store () const { return version.to_int () < 0x00010001u ? Null (VariationStore) : this+varStore; } - bool get_baseline (hb_font_t *font, - hb_ot_layout_baseline_t baseline, - hb_direction_t direction, - hb_tag_t script_tag, - hb_tag_t language_tag, - hb_position_t *base) const + bool get_baseline (hb_font_t *font, + hb_tag_t baseline_tag, + hb_direction_t direction, + hb_tag_t script_tag, + hb_tag_t language_tag, + hb_position_t *base) const { - const BaseCoord *base_coord; - if (!get_axis (direction).get_baseline (baseline, script_tag, language_tag, &base_coord)) + const BaseCoord *base_coord = nullptr; + if (unlikely (!get_axis (direction).get_baseline (baseline_tag, script_tag, language_tag, &base_coord) || + !base_coord || !base_coord->has_data ())) return false; - if (likely (base && base_coord)) *base = base_coord->get_coord (font, - get_var_store (), - direction); + if (likely (base)) + *base = base_coord->get_coord (font, get_var_store (), direction); + return true; } |