diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-name-table.hh')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-name-table.hh | 351 |
1 files changed, 1 insertions, 350 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-name-table.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-name-table.hh index c17bb4abb8..85653224cc 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-name-table.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-name-table.hh @@ -27,355 +27,6 @@ #ifndef HB_OT_NAME_TABLE_HH #define HB_OT_NAME_TABLE_HH -#include "hb-open-type.hh" -#include "hb-ot-name-language.hh" -#include "hb-aat-layout.hh" - - -namespace OT { - - -#define entry_score var.u16[0] -#define entry_index var.u16[1] - - -/* - * name -- Naming - * https://docs.microsoft.com/en-us/typography/opentype/spec/name - */ -#define HB_OT_TAG_name HB_TAG('n','a','m','e') - -#define UNSUPPORTED 42 - -struct NameRecord -{ - hb_language_t language (hb_face_t *face) const - { -#ifndef HB_NO_OT_NAME_LANGUAGE - unsigned int p = platformID; - unsigned int l = languageID; - - if (p == 3) - return _hb_ot_name_language_for_ms_code (l); - - if (p == 1) - return _hb_ot_name_language_for_mac_code (l); - -#ifndef HB_NO_OT_NAME_LANGUAGE_AAT - if (p == 0) - return face->table.ltag->get_language (l); -#endif - -#endif - return HB_LANGUAGE_INVALID; - } - - uint16_t score () const - { - /* Same order as in cmap::find_best_subtable(). */ - unsigned int p = platformID; - unsigned int e = encodingID; - - /* 32-bit. */ - if (p == 3 && e == 10) return 0; - if (p == 0 && e == 6) return 1; - if (p == 0 && e == 4) return 2; - - /* 16-bit. */ - if (p == 3 && e == 1) return 3; - if (p == 0 && e == 3) return 4; - if (p == 0 && e == 2) return 5; - if (p == 0 && e == 1) return 6; - if (p == 0 && e == 0) return 7; - - /* Symbol. */ - if (p == 3 && e == 0) return 8; - - /* We treat all Mac Latin names as ASCII only. */ - if (p == 1 && e == 0) return 10; /* 10 is magic number :| */ - - return UNSUPPORTED; - } - - NameRecord* copy (hb_serialize_context_t *c, const void *base) const - { - TRACE_SERIALIZE (this); - auto *out = c->embed (this); - if (unlikely (!out)) return_trace (nullptr); - out->offset.serialize_copy (c, offset, base, 0, hb_serialize_context_t::Tail, length); - return_trace (out); - } - - bool isUnicode () const - { - unsigned int p = platformID; - unsigned int e = encodingID; - - return (p == 0 || - (p == 3 && (e == 0 || e == 1 || e == 10))); - } - - static int cmp (const void *pa, const void *pb) - { - const NameRecord *a = (const NameRecord *)pa; - const NameRecord *b = (const NameRecord *)pb; - - if (a->platformID != b->platformID) - return a->platformID - b->platformID; - - if (a->encodingID != b->encodingID) - return a->encodingID - b->encodingID; - - if (a->languageID != b->languageID) - return a->languageID - b->languageID; - - if (a->nameID != b->nameID) - return a->nameID - b->nameID; - - if (a->length != b->length) - return a->length - b->length; - - return 0; - } - - bool sanitize (hb_sanitize_context_t *c, const void *base) const - { - TRACE_SANITIZE (this); - return_trace (c->check_struct (this) && offset.sanitize (c, base, length)); - } - - HBUINT16 platformID; /* Platform ID. */ - HBUINT16 encodingID; /* Platform-specific encoding ID. */ - HBUINT16 languageID; /* Language ID. */ - HBUINT16 nameID; /* Name ID. */ - HBUINT16 length; /* String length (in bytes). */ - NNOffset16To<UnsizedArrayOf<HBUINT8>> - offset; /* String offset from start of storage area (in bytes). */ - public: - DEFINE_SIZE_STATIC (12); -}; - -static int -_hb_ot_name_entry_cmp_key (const void *pa, const void *pb) -{ - const hb_ot_name_entry_t *a = (const hb_ot_name_entry_t *) pa; - const hb_ot_name_entry_t *b = (const hb_ot_name_entry_t *) pb; - - /* Compare by name_id, then language. */ - - if (a->name_id != b->name_id) - return a->name_id - b->name_id; - - if (a->language == b->language) return 0; - if (!a->language) return -1; - if (!b->language) return +1; - return strcmp (hb_language_to_string (a->language), - hb_language_to_string (b->language)); -} - -static int -_hb_ot_name_entry_cmp (const void *pa, const void *pb) -{ - /* Compare by name_id, then language, then score, then index. */ - - int v = _hb_ot_name_entry_cmp_key (pa, pb); - if (v) - return v; - - const hb_ot_name_entry_t *a = (const hb_ot_name_entry_t *) pa; - const hb_ot_name_entry_t *b = (const hb_ot_name_entry_t *) pb; - - if (a->entry_score != b->entry_score) - return a->entry_score - b->entry_score; - - if (a->entry_index != b->entry_index) - return a->entry_index - b->entry_index; - - return 0; -} - -struct name -{ - static constexpr hb_tag_t tableTag = HB_OT_TAG_name; - - unsigned int get_size () const - { return min_size + count * nameRecordZ.item_size; } - - template <typename Iterator, - hb_requires (hb_is_source_of (Iterator, const NameRecord &))> - bool serialize (hb_serialize_context_t *c, - Iterator it, - const void *src_string_pool) - { - TRACE_SERIALIZE (this); - - if (unlikely (!c->extend_min ((*this)))) return_trace (false); - - this->format = 0; - this->count = it.len (); - - NameRecord *name_records = (NameRecord *) hb_calloc (it.len (), NameRecord::static_size); - if (unlikely (!name_records)) return_trace (false); - - hb_array_t<NameRecord> records (name_records, it.len ()); - - for (const NameRecord& record : it) - { - memcpy (name_records, &record, NameRecord::static_size); - name_records++; - } - - records.qsort (); - - c->copy_all (records, src_string_pool); - hb_free (records.arrayZ); - - - if (unlikely (c->ran_out_of_room ())) return_trace (false); - - this->stringOffset = c->length (); - - return_trace (true); - } - - bool subset (hb_subset_context_t *c) const - { - TRACE_SUBSET (this); - - name *name_prime = c->serializer->start_embed<name> (); - if (unlikely (!name_prime)) return_trace (false); - - auto it = - + nameRecordZ.as_array (count) - | hb_filter (c->plan->name_ids, &NameRecord::nameID) - | hb_filter (c->plan->name_languages, &NameRecord::languageID) - | hb_filter ([&] (const NameRecord& namerecord) { - return - (c->plan->flags & HB_SUBSET_FLAGS_NAME_LEGACY) - || namerecord.isUnicode (); - }) - ; - - name_prime->serialize (c->serializer, it, hb_addressof (this + stringOffset)); - return_trace (name_prime->count); - } - - bool sanitize_records (hb_sanitize_context_t *c) const - { - TRACE_SANITIZE (this); - const void *string_pool = (this+stringOffset).arrayZ; - return_trace (nameRecordZ.sanitize (c, count, string_pool)); - } - - bool sanitize (hb_sanitize_context_t *c) const - { - TRACE_SANITIZE (this); - return_trace (c->check_struct (this) && - likely (format == 0 || format == 1) && - c->check_array (nameRecordZ.arrayZ, count) && - c->check_range (this, stringOffset) && - sanitize_records (c)); - } - - struct accelerator_t - { - void init (hb_face_t *face) - { - this->table = hb_sanitize_context_t ().reference_table<name> (face); - assert (this->table.get_length () >= this->table->stringOffset); - this->pool = (const char *) (const void *) (this->table+this->table->stringOffset); - this->pool_len = this->table.get_length () - this->table->stringOffset; - const hb_array_t<const NameRecord> all_names (this->table->nameRecordZ.arrayZ, - this->table->count); - - this->names.init (); - this->names.alloc (all_names.length); - - for (unsigned int i = 0; i < all_names.length; i++) - { - hb_ot_name_entry_t *entry = this->names.push (); - - entry->name_id = all_names[i].nameID; - entry->language = all_names[i].language (face); - entry->entry_score = all_names[i].score (); - entry->entry_index = i; - } - - this->names.qsort (_hb_ot_name_entry_cmp); - /* Walk and pick best only for each name_id,language pair, - * while dropping unsupported encodings. */ - unsigned int j = 0; - for (unsigned int i = 0; i < this->names.length; i++) - { - if (this->names[i].entry_score == UNSUPPORTED || - this->names[i].language == HB_LANGUAGE_INVALID) - continue; - if (i && - this->names[i - 1].name_id == this->names[i].name_id && - this->names[i - 1].language == this->names[i].language) - continue; - this->names[j++] = this->names[i]; - } - this->names.resize (j); - } - - void fini () - { - this->names.fini (); - this->table.destroy (); - } - - int get_index (hb_ot_name_id_t name_id, - hb_language_t language, - unsigned int *width=nullptr) const - { - const hb_ot_name_entry_t key = {name_id, {0}, language}; - const hb_ot_name_entry_t *entry = hb_bsearch (key, (const hb_ot_name_entry_t *) this->names, - this->names.length, - sizeof (hb_ot_name_entry_t), - _hb_ot_name_entry_cmp_key); - if (!entry) - return -1; - - if (width) - *width = entry->entry_score < 10 ? 2 : 1; - - return entry->entry_index; - } - - hb_bytes_t get_name (unsigned int idx) const - { - const hb_array_t<const NameRecord> all_names (table->nameRecordZ.arrayZ, table->count); - const NameRecord &record = all_names[idx]; - const hb_bytes_t string_pool (pool, pool_len); - return string_pool.sub_array (record.offset, record.length); - } - - private: - const char *pool; - unsigned int pool_len; - public: - hb_blob_ptr_t<name> table; - hb_vector_t<hb_ot_name_entry_t> names; - }; - - /* We only implement format 0 for now. */ - HBUINT16 format; /* Format selector (=0/1). */ - HBUINT16 count; /* Number of name records. */ - NNOffset16To<UnsizedArrayOf<HBUINT8>> - stringOffset; /* Offset to start of string storage (from start of table). */ - UnsizedArrayOf<NameRecord> - nameRecordZ; /* The name records where count is the number of records. */ - public: - DEFINE_SIZE_ARRAY (6, nameRecordZ); -}; - -#undef entry_index -#undef entry_score - -struct name_accelerator_t : name::accelerator_t {}; - -} /* namespace OT */ - +#include "OT/name/name.hh" #endif /* HB_OT_NAME_TABLE_HH */ |