harfbuzz/src/hb-ucdn.cc

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/*
* Copyright (C) 2012 Grigori Goronzy <greg@kinoho.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "hb-private.hh"
#include "hb-unicode-private.hh"
#include "ucdn.h"
static const hb_script_t ucdn_script_translate[] =
{
HB_SCRIPT_COMMON,
HB_SCRIPT_LATIN,
HB_SCRIPT_GREEK,
HB_SCRIPT_CYRILLIC,
HB_SCRIPT_ARMENIAN,
HB_SCRIPT_HEBREW,
HB_SCRIPT_ARABIC,
HB_SCRIPT_SYRIAC,
HB_SCRIPT_THAANA,
HB_SCRIPT_DEVANAGARI,
HB_SCRIPT_BENGALI,
HB_SCRIPT_GURMUKHI,
HB_SCRIPT_GUJARATI,
HB_SCRIPT_ORIYA,
HB_SCRIPT_TAMIL,
HB_SCRIPT_TELUGU,
HB_SCRIPT_KANNADA,
HB_SCRIPT_MALAYALAM,
HB_SCRIPT_SINHALA,
HB_SCRIPT_THAI,
HB_SCRIPT_LAO,
HB_SCRIPT_TIBETAN,
HB_SCRIPT_MYANMAR,
HB_SCRIPT_GEORGIAN,
HB_SCRIPT_HANGUL,
HB_SCRIPT_ETHIOPIC,
HB_SCRIPT_CHEROKEE,
HB_SCRIPT_CANADIAN_SYLLABICS,
HB_SCRIPT_OGHAM,
HB_SCRIPT_RUNIC,
HB_SCRIPT_KHMER,
HB_SCRIPT_MONGOLIAN,
HB_SCRIPT_HIRAGANA,
HB_SCRIPT_KATAKANA,
HB_SCRIPT_BOPOMOFO,
HB_SCRIPT_HAN,
HB_SCRIPT_YI,
HB_SCRIPT_OLD_ITALIC,
HB_SCRIPT_GOTHIC,
HB_SCRIPT_DESERET,
HB_SCRIPT_INHERITED,
HB_SCRIPT_TAGALOG,
HB_SCRIPT_HANUNOO,
HB_SCRIPT_BUHID,
HB_SCRIPT_TAGBANWA,
HB_SCRIPT_LIMBU,
HB_SCRIPT_TAI_LE,
HB_SCRIPT_LINEAR_B,
HB_SCRIPT_UGARITIC,
HB_SCRIPT_SHAVIAN,
HB_SCRIPT_OSMANYA,
HB_SCRIPT_CYPRIOT,
HB_SCRIPT_BRAILLE,
HB_SCRIPT_BUGINESE,
HB_SCRIPT_COPTIC,
HB_SCRIPT_NEW_TAI_LUE,
HB_SCRIPT_GLAGOLITIC,
HB_SCRIPT_TIFINAGH,
HB_SCRIPT_SYLOTI_NAGRI,
HB_SCRIPT_OLD_PERSIAN,
HB_SCRIPT_KHAROSHTHI,
HB_SCRIPT_BALINESE,
HB_SCRIPT_CUNEIFORM,
HB_SCRIPT_PHOENICIAN,
HB_SCRIPT_PHAGS_PA,
HB_SCRIPT_NKO,
HB_SCRIPT_SUNDANESE,
HB_SCRIPT_LEPCHA,
HB_SCRIPT_OL_CHIKI,
HB_SCRIPT_VAI,
HB_SCRIPT_SAURASHTRA,
HB_SCRIPT_KAYAH_LI,
HB_SCRIPT_REJANG,
HB_SCRIPT_LYCIAN,
HB_SCRIPT_CARIAN,
HB_SCRIPT_LYDIAN,
HB_SCRIPT_CHAM,
HB_SCRIPT_TAI_THAM,
HB_SCRIPT_TAI_VIET,
HB_SCRIPT_AVESTAN,
HB_SCRIPT_EGYPTIAN_HIEROGLYPHS,
HB_SCRIPT_SAMARITAN,
HB_SCRIPT_LISU,
HB_SCRIPT_BAMUM,
HB_SCRIPT_JAVANESE,
HB_SCRIPT_MEETEI_MAYEK,
HB_SCRIPT_IMPERIAL_ARAMAIC,
HB_SCRIPT_OLD_SOUTH_ARABIAN,
HB_SCRIPT_INSCRIPTIONAL_PARTHIAN,
HB_SCRIPT_INSCRIPTIONAL_PAHLAVI,
HB_SCRIPT_OLD_TURKIC,
HB_SCRIPT_KAITHI,
HB_SCRIPT_BATAK,
HB_SCRIPT_BRAHMI,
HB_SCRIPT_MANDAIC,
HB_SCRIPT_CHAKMA,
HB_SCRIPT_MEROITIC_CURSIVE,
HB_SCRIPT_MEROITIC_HIEROGLYPHS,
HB_SCRIPT_MIAO,
HB_SCRIPT_SHARADA,
HB_SCRIPT_SORA_SOMPENG,
HB_SCRIPT_TAKRI,
HB_SCRIPT_UNKNOWN,
HB_SCRIPT_BASSA_VAH,
HB_SCRIPT_CAUCASIAN_ALBANIAN,
HB_SCRIPT_DUPLOYAN,
HB_SCRIPT_ELBASAN,
HB_SCRIPT_GRANTHA,
HB_SCRIPT_KHOJKI,
HB_SCRIPT_KHUDAWADI,
HB_SCRIPT_LINEAR_A,
HB_SCRIPT_MAHAJANI,
HB_SCRIPT_MANICHAEAN,
HB_SCRIPT_MENDE_KIKAKUI,
HB_SCRIPT_MODI,
HB_SCRIPT_MRO,
HB_SCRIPT_NABATAEAN,
HB_SCRIPT_OLD_NORTH_ARABIAN,
HB_SCRIPT_OLD_PERMIC,
HB_SCRIPT_PAHAWH_HMONG,
HB_SCRIPT_PALMYRENE,
HB_SCRIPT_PAU_CIN_HAU,
HB_SCRIPT_PSALTER_PAHLAVI,
HB_SCRIPT_SIDDHAM,
HB_SCRIPT_TIRHUTA,
HB_SCRIPT_WARANG_CITI,
HB_SCRIPT_AHOM,
HB_SCRIPT_ANATOLIAN_HIEROGLYPHS,
HB_SCRIPT_HATRAN,
HB_SCRIPT_MULTANI,
HB_SCRIPT_OLD_HUNGARIAN,
HB_SCRIPT_SIGNWRITING,
HB_SCRIPT_ADLAM,
HB_SCRIPT_BHAIKSUKI,
HB_SCRIPT_MARCHEN,
HB_SCRIPT_NEWA,
HB_SCRIPT_OSAGE,
HB_SCRIPT_TANGUT,
HB_SCRIPT_MASARAM_GONDI,
HB_SCRIPT_NUSHU,
HB_SCRIPT_SOYOMBO,
HB_SCRIPT_ZANABAZAR_SQUARE,
};
static hb_unicode_combining_class_t
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hb_ucdn_combining_class(hb_unicode_funcs_t *ufuncs HB_UNUSED,
hb_codepoint_t unicode,
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void *user_data HB_UNUSED)
{
return (hb_unicode_combining_class_t) ucdn_get_combining_class(unicode);
}
static unsigned int
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hb_ucdn_eastasian_width(hb_unicode_funcs_t *ufuncs HB_UNUSED,
hb_codepoint_t unicode,
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void *user_data HB_UNUSED)
{
int w = ucdn_get_east_asian_width(unicode);
return (w == UCDN_EAST_ASIAN_F || w == UCDN_EAST_ASIAN_W) ? 2 : 1;
}
static hb_unicode_general_category_t
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hb_ucdn_general_category(hb_unicode_funcs_t *ufuncs HB_UNUSED,
hb_codepoint_t unicode,
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void *user_data HB_UNUSED)
{
return (hb_unicode_general_category_t)ucdn_get_general_category(unicode);
}
static hb_codepoint_t
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hb_ucdn_mirroring(hb_unicode_funcs_t *ufuncs HB_UNUSED,
hb_codepoint_t unicode,
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void *user_data HB_UNUSED)
{
return ucdn_mirror(unicode);
}
static hb_script_t
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hb_ucdn_script(hb_unicode_funcs_t *ufuncs HB_UNUSED,
hb_codepoint_t unicode,
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void *user_data HB_UNUSED)
{
return ucdn_script_translate[ucdn_get_script(unicode)];
}
static hb_bool_t
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hb_ucdn_compose(hb_unicode_funcs_t *ufuncs HB_UNUSED,
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hb_codepoint_t a, hb_codepoint_t b, hb_codepoint_t *ab,
void *user_data HB_UNUSED)
{
return ucdn_compose(ab, a, b);
}
static hb_bool_t
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hb_ucdn_decompose(hb_unicode_funcs_t *ufuncs HB_UNUSED,
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hb_codepoint_t ab, hb_codepoint_t *a, hb_codepoint_t *b,
void *user_data HB_UNUSED)
{
return ucdn_decompose(ab, a, b);
}
static unsigned int
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hb_ucdn_decompose_compatibility(hb_unicode_funcs_t *ufuncs HB_UNUSED,
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hb_codepoint_t u, hb_codepoint_t *decomposed,
void *user_data HB_UNUSED)
{
return ucdn_compat_decompose(u, decomposed);
}
static hb_unicode_funcs_t *static_ucdn_funcs = nullptr;
#ifdef HB_USE_ATEXIT
static
void free_static_ucdn_funcs (void)
{
hb_unicode_funcs_destroy (static_ucdn_funcs);
}
#endif
extern "C" HB_INTERNAL
hb_unicode_funcs_t *
hb_ucdn_get_unicode_funcs (void)
{
retry:
hb_unicode_funcs_t *funcs = (hb_unicode_funcs_t *) hb_atomic_ptr_get (&static_ucdn_funcs);
if (unlikely (!funcs))
{
funcs = hb_unicode_funcs_create (nullptr);
#define HB_UNICODE_FUNC_IMPLEMENT(name) \
hb_unicode_funcs_set_##name##_func (funcs, hb_ucdn_##name, nullptr, nullptr);
HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
#undef HB_UNICODE_FUNC_IMPLEMENT
hb_unicode_funcs_make_immutable (funcs);
if (!hb_atomic_ptr_cmpexch (&static_ucdn_funcs, nullptr, funcs)) {
hb_unicode_funcs_destroy (funcs);
goto retry;
}
#ifdef HB_USE_ATEXIT
atexit (free_static_ucdn_funcs); /* First person registers atexit() callback. */
#endif
};
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return hb_unicode_funcs_reference (funcs);
}