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Diffstat (limited to 'gfx/harfbuzz/src/hb-common.h')
| -rw-r--r-- | gfx/harfbuzz/src/hb-common.h | 938 |
1 files changed, 938 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-common.h b/gfx/harfbuzz/src/hb-common.h new file mode 100644 index 0000000000..a9fe666b39 --- /dev/null +++ b/gfx/harfbuzz/src/hb-common.h @@ -0,0 +1,938 @@ +/* + * Copyright © 2007,2008,2009 Red Hat, Inc. + * Copyright © 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 + */ + +#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) +#error "Include <hb.h> instead." +#endif + +#ifndef HB_COMMON_H +#define HB_COMMON_H + +#ifndef HB_EXTERN +#define HB_EXTERN extern +#endif + +#ifndef HB_BEGIN_DECLS +# ifdef __cplusplus +# define HB_BEGIN_DECLS extern "C" { +# define HB_END_DECLS } +# else /* !__cplusplus */ +# define HB_BEGIN_DECLS +# define HB_END_DECLS +# endif /* !__cplusplus */ +#endif + +#if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || \ + defined (_sgi) || defined (__sun) || defined (sun) || \ + defined (__digital__) || defined (__HP_cc) +# include <inttypes.h> +#elif defined (_AIX) +# include <sys/inttypes.h> +#elif defined (_MSC_VER) && _MSC_VER < 1600 +/* VS 2010 (_MSC_VER 1600) has stdint.h */ +typedef __int8 int8_t; +typedef unsigned __int8 uint8_t; +typedef __int16 int16_t; +typedef unsigned __int16 uint16_t; +typedef __int32 int32_t; +typedef unsigned __int32 uint32_t; +typedef __int64 int64_t; +typedef unsigned __int64 uint64_t; +#elif defined (__KERNEL__) +# include <linux/types.h> +#else +# include <stdint.h> +#endif + +#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) +#define HB_DEPRECATED __attribute__((__deprecated__)) +#elif defined(_MSC_VER) && (_MSC_VER >= 1300) +#define HB_DEPRECATED __declspec(deprecated) +#else +#define HB_DEPRECATED +#endif + +#if defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)) +#define HB_DEPRECATED_FOR(f) __attribute__((__deprecated__("Use '" #f "' instead"))) +#elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320) +#define HB_DEPRECATED_FOR(f) __declspec(deprecated("is deprecated. Use '" #f "' instead")) +#else +#define HB_DEPRECATED_FOR(f) HB_DEPRECATED +#endif + + +HB_BEGIN_DECLS + +/** + * hb_bool_t: + * + * Data type for booleans. + * + **/ +typedef int hb_bool_t; + +/** + * hb_codepoint_t: + * + * Data type for holding Unicode codepoints. Also + * used to hold glyph IDs. + * + **/ +typedef uint32_t hb_codepoint_t; + +/** + * HB_CODEPOINT_INVALID: + * + * Unused #hb_codepoint_t value. + * + * Since: 8.0.0 + */ +#define HB_CODEPOINT_INVALID ((hb_codepoint_t) -1) + +/** + * hb_position_t: + * + * Data type for holding a single coordinate value. + * Contour points and other multi-dimensional data are + * stored as tuples of #hb_position_t's. + * + **/ +typedef int32_t hb_position_t; +/** + * hb_mask_t: + * + * Data type for bitmasks. + * + **/ +typedef uint32_t hb_mask_t; + +typedef union _hb_var_int_t { + uint32_t u32; + int32_t i32; + uint16_t u16[2]; + int16_t i16[2]; + uint8_t u8[4]; + int8_t i8[4]; +} hb_var_int_t; + +typedef union _hb_var_num_t { + float f; + uint32_t u32; + int32_t i32; + uint16_t u16[2]; + int16_t i16[2]; + uint8_t u8[4]; + int8_t i8[4]; +} hb_var_num_t; + + +/* hb_tag_t */ + +/** + * hb_tag_t: + * + * Data type for tag identifiers. Tags are four + * byte integers, each byte representing a character. + * + * Tags are used to identify tables, design-variation axes, + * scripts, languages, font features, and baselines with + * human-readable names. + * + **/ +typedef uint32_t hb_tag_t; + +/** + * HB_TAG: + * @c1: 1st character of the tag + * @c2: 2nd character of the tag + * @c3: 3rd character of the tag + * @c4: 4th character of the tag + * + * Constructs an #hb_tag_t from four character literals. + * + **/ +#define HB_TAG(c1,c2,c3,c4) ((hb_tag_t)((((uint32_t)(c1)&0xFF)<<24)|(((uint32_t)(c2)&0xFF)<<16)|(((uint32_t)(c3)&0xFF)<<8)|((uint32_t)(c4)&0xFF))) + +/** + * HB_UNTAG: + * @tag: an #hb_tag_t + * + * Extracts four character literals from an #hb_tag_t. + * + * Since: 0.6.0 + * + **/ +#define HB_UNTAG(tag) (uint8_t)(((tag)>>24)&0xFF), (uint8_t)(((tag)>>16)&0xFF), (uint8_t)(((tag)>>8)&0xFF), (uint8_t)((tag)&0xFF) + +/** + * HB_TAG_NONE: + * + * Unset #hb_tag_t. + */ +#define HB_TAG_NONE HB_TAG(0,0,0,0) +/** + * HB_TAG_MAX: + * + * Maximum possible unsigned #hb_tag_t. + * + * Since: 0.9.26 + */ +#define HB_TAG_MAX HB_TAG(0xff,0xff,0xff,0xff) +/** + * HB_TAG_MAX_SIGNED: + * + * Maximum possible signed #hb_tag_t. + * + * Since: 0.9.33 + */ +#define HB_TAG_MAX_SIGNED HB_TAG(0x7f,0xff,0xff,0xff) + +/* len=-1 means str is NUL-terminated. */ +HB_EXTERN hb_tag_t +hb_tag_from_string (const char *str, int len); + +/* buf should have 4 bytes. */ +HB_EXTERN void +hb_tag_to_string (hb_tag_t tag, char *buf); + + +/** + * hb_direction_t: + * @HB_DIRECTION_INVALID: Initial, unset direction. + * @HB_DIRECTION_LTR: Text is set horizontally from left to right. + * @HB_DIRECTION_RTL: Text is set horizontally from right to left. + * @HB_DIRECTION_TTB: Text is set vertically from top to bottom. + * @HB_DIRECTION_BTT: Text is set vertically from bottom to top. + * + * The direction of a text segment or buffer. + * + * A segment can also be tested for horizontal or vertical + * orientation (irrespective of specific direction) with + * HB_DIRECTION_IS_HORIZONTAL() or HB_DIRECTION_IS_VERTICAL(). + * + */ +typedef enum { + HB_DIRECTION_INVALID = 0, + HB_DIRECTION_LTR = 4, + HB_DIRECTION_RTL, + HB_DIRECTION_TTB, + HB_DIRECTION_BTT +} hb_direction_t; + +/* len=-1 means str is NUL-terminated */ +HB_EXTERN hb_direction_t +hb_direction_from_string (const char *str, int len); + +HB_EXTERN const char * +hb_direction_to_string (hb_direction_t direction); + +/** + * HB_DIRECTION_IS_VALID: + * @dir: #hb_direction_t to test + * + * Tests whether a text direction is valid. + * + **/ +#define HB_DIRECTION_IS_VALID(dir) ((((unsigned int) (dir)) & ~3U) == 4) +/* Direction must be valid for the following */ +/** + * HB_DIRECTION_IS_HORIZONTAL: + * @dir: #hb_direction_t to test + * + * Tests whether a text direction is horizontal. Requires + * that the direction be valid. + * + **/ +#define HB_DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 4) +/** + * HB_DIRECTION_IS_VERTICAL: + * @dir: #hb_direction_t to test + * + * Tests whether a text direction is vertical. Requires + * that the direction be valid. + * + **/ +#define HB_DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 6) +/** + * HB_DIRECTION_IS_FORWARD: + * @dir: #hb_direction_t to test + * + * Tests whether a text direction moves forward (from left to right, or from + * top to bottom). Requires that the direction be valid. + * + **/ +#define HB_DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 4) +/** + * HB_DIRECTION_IS_BACKWARD: + * @dir: #hb_direction_t to test + * + * Tests whether a text direction moves backward (from right to left, or from + * bottom to top). Requires that the direction be valid. + * + **/ +#define HB_DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 5) +/** + * HB_DIRECTION_REVERSE: + * @dir: #hb_direction_t to reverse + * + * Reverses a text direction. Requires that the direction + * be valid. + * + **/ +#define HB_DIRECTION_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1)) + + +/* hb_language_t */ + +/** + * hb_language_t: + * + * Data type for languages. Each #hb_language_t corresponds to a BCP 47 + * language tag. + * + */ +typedef const struct hb_language_impl_t *hb_language_t; + +HB_EXTERN hb_language_t +hb_language_from_string (const char *str, int len); + +HB_EXTERN const char * +hb_language_to_string (hb_language_t language); + +/** + * HB_LANGUAGE_INVALID: + * + * An unset #hb_language_t. + * + * Since: 0.6.0 + */ +#define HB_LANGUAGE_INVALID ((hb_language_t) 0) + +HB_EXTERN hb_language_t +hb_language_get_default (void); + +HB_EXTERN hb_bool_t +hb_language_matches (hb_language_t language, + hb_language_t specific); + +/** + * hb_script_t: + * @HB_SCRIPT_COMMON: `Zyyy` + * @HB_SCRIPT_INHERITED: `Zinh` + * @HB_SCRIPT_UNKNOWN: `Zzzz` + * @HB_SCRIPT_ARABIC: `Arab` + * @HB_SCRIPT_ARMENIAN: `Armn` + * @HB_SCRIPT_BENGALI: `Beng` + * @HB_SCRIPT_CYRILLIC: `Cyrl` + * @HB_SCRIPT_DEVANAGARI: `Deva` + * @HB_SCRIPT_GEORGIAN: `Geor` + * @HB_SCRIPT_GREEK: `Grek` + * @HB_SCRIPT_GUJARATI: `Gujr` + * @HB_SCRIPT_GURMUKHI: `Guru` + * @HB_SCRIPT_HANGUL: `Hang` + * @HB_SCRIPT_HAN: `Hani` + * @HB_SCRIPT_HEBREW: `Hebr` + * @HB_SCRIPT_HIRAGANA: `Hira` + * @HB_SCRIPT_KANNADA: `Knda` + * @HB_SCRIPT_KATAKANA: `Kana` + * @HB_SCRIPT_LAO: `Laoo` + * @HB_SCRIPT_LATIN: `Latn` + * @HB_SCRIPT_MALAYALAM: `Mlym` + * @HB_SCRIPT_ORIYA: `Orya` + * @HB_SCRIPT_TAMIL: `Taml` + * @HB_SCRIPT_TELUGU: `Telu` + * @HB_SCRIPT_THAI: `Thai` + * @HB_SCRIPT_TIBETAN: `Tibt` + * @HB_SCRIPT_BOPOMOFO: `Bopo` + * @HB_SCRIPT_BRAILLE: `Brai` + * @HB_SCRIPT_CANADIAN_SYLLABICS: `Cans` + * @HB_SCRIPT_CHEROKEE: `Cher` + * @HB_SCRIPT_ETHIOPIC: `Ethi` + * @HB_SCRIPT_KHMER: `Khmr` + * @HB_SCRIPT_MONGOLIAN: `Mong` + * @HB_SCRIPT_MYANMAR: `Mymr` + * @HB_SCRIPT_OGHAM: `Ogam` + * @HB_SCRIPT_RUNIC: `Runr` + * @HB_SCRIPT_SINHALA: `Sinh` + * @HB_SCRIPT_SYRIAC: `Syrc` + * @HB_SCRIPT_THAANA: `Thaa` + * @HB_SCRIPT_YI: `Yiii` + * @HB_SCRIPT_DESERET: `Dsrt` + * @HB_SCRIPT_GOTHIC: `Goth` + * @HB_SCRIPT_OLD_ITALIC: `Ital` + * @HB_SCRIPT_BUHID: `Buhd` + * @HB_SCRIPT_HANUNOO: `Hano` + * @HB_SCRIPT_TAGALOG: `Tglg` + * @HB_SCRIPT_TAGBANWA: `Tagb` + * @HB_SCRIPT_CYPRIOT: `Cprt` + * @HB_SCRIPT_LIMBU: `Limb` + * @HB_SCRIPT_LINEAR_B: `Linb` + * @HB_SCRIPT_OSMANYA: `Osma` + * @HB_SCRIPT_SHAVIAN: `Shaw` + * @HB_SCRIPT_TAI_LE: `Tale` + * @HB_SCRIPT_UGARITIC: `Ugar` + * @HB_SCRIPT_BUGINESE: `Bugi` + * @HB_SCRIPT_COPTIC: `Copt` + * @HB_SCRIPT_GLAGOLITIC: `Glag` + * @HB_SCRIPT_KHAROSHTHI: `Khar` + * @HB_SCRIPT_NEW_TAI_LUE: `Talu` + * @HB_SCRIPT_OLD_PERSIAN: `Xpeo` + * @HB_SCRIPT_SYLOTI_NAGRI: `Sylo` + * @HB_SCRIPT_TIFINAGH: `Tfng` + * @HB_SCRIPT_BALINESE: `Bali` + * @HB_SCRIPT_CUNEIFORM: `Xsux` + * @HB_SCRIPT_NKO: `Nkoo` + * @HB_SCRIPT_PHAGS_PA: `Phag` + * @HB_SCRIPT_PHOENICIAN: `Phnx` + * @HB_SCRIPT_CARIAN: `Cari` + * @HB_SCRIPT_CHAM: `Cham` + * @HB_SCRIPT_KAYAH_LI: `Kali` + * @HB_SCRIPT_LEPCHA: `Lepc` + * @HB_SCRIPT_LYCIAN: `Lyci` + * @HB_SCRIPT_LYDIAN: `Lydi` + * @HB_SCRIPT_OL_CHIKI: `Olck` + * @HB_SCRIPT_REJANG: `Rjng` + * @HB_SCRIPT_SAURASHTRA: `Saur` + * @HB_SCRIPT_SUNDANESE: `Sund` + * @HB_SCRIPT_VAI: `Vaii` + * @HB_SCRIPT_AVESTAN: `Avst` + * @HB_SCRIPT_BAMUM: `Bamu` + * @HB_SCRIPT_EGYPTIAN_HIEROGLYPHS: `Egyp` + * @HB_SCRIPT_IMPERIAL_ARAMAIC: `Armi` + * @HB_SCRIPT_INSCRIPTIONAL_PAHLAVI: `Phli` + * @HB_SCRIPT_INSCRIPTIONAL_PARTHIAN: `Prti` + * @HB_SCRIPT_JAVANESE: `Java` + * @HB_SCRIPT_KAITHI: `Kthi` + * @HB_SCRIPT_LISU: `Lisu` + * @HB_SCRIPT_MEETEI_MAYEK: `Mtei` + * @HB_SCRIPT_OLD_SOUTH_ARABIAN: `Sarb` + * @HB_SCRIPT_OLD_TURKIC: `Orkh` + * @HB_SCRIPT_SAMARITAN: `Samr` + * @HB_SCRIPT_TAI_THAM: `Lana` + * @HB_SCRIPT_TAI_VIET: `Tavt` + * @HB_SCRIPT_BATAK: `Batk` + * @HB_SCRIPT_BRAHMI: `Brah` + * @HB_SCRIPT_MANDAIC: `Mand` + * @HB_SCRIPT_CHAKMA: `Cakm` + * @HB_SCRIPT_MEROITIC_CURSIVE: `Merc` + * @HB_SCRIPT_MEROITIC_HIEROGLYPHS: `Mero` + * @HB_SCRIPT_MIAO: `Plrd` + * @HB_SCRIPT_SHARADA: `Shrd` + * @HB_SCRIPT_SORA_SOMPENG: `Sora` + * @HB_SCRIPT_TAKRI: `Takr` + * @HB_SCRIPT_BASSA_VAH: `Bass`, Since: 0.9.30 + * @HB_SCRIPT_CAUCASIAN_ALBANIAN: `Aghb`, Since: 0.9.30 + * @HB_SCRIPT_DUPLOYAN: `Dupl`, Since: 0.9.30 + * @HB_SCRIPT_ELBASAN: `Elba`, Since: 0.9.30 + * @HB_SCRIPT_GRANTHA: `Gran`, Since: 0.9.30 + * @HB_SCRIPT_KHOJKI: `Khoj`, Since: 0.9.30 + * @HB_SCRIPT_KHUDAWADI: `Sind`, Since: 0.9.30 + * @HB_SCRIPT_LINEAR_A: `Lina`, Since: 0.9.30 + * @HB_SCRIPT_MAHAJANI: `Mahj`, Since: 0.9.30 + * @HB_SCRIPT_MANICHAEAN: `Mani`, Since: 0.9.30 + * @HB_SCRIPT_MENDE_KIKAKUI: `Mend`, Since: 0.9.30 + * @HB_SCRIPT_MODI: `Modi`, Since: 0.9.30 + * @HB_SCRIPT_MRO: `Mroo`, Since: 0.9.30 + * @HB_SCRIPT_NABATAEAN: `Nbat`, Since: 0.9.30 + * @HB_SCRIPT_OLD_NORTH_ARABIAN: `Narb`, Since: 0.9.30 + * @HB_SCRIPT_OLD_PERMIC: `Perm`, Since: 0.9.30 + * @HB_SCRIPT_PAHAWH_HMONG: `Hmng`, Since: 0.9.30 + * @HB_SCRIPT_PALMYRENE: `Palm`, Since: 0.9.30 + * @HB_SCRIPT_PAU_CIN_HAU: `Pauc`, Since: 0.9.30 + * @HB_SCRIPT_PSALTER_PAHLAVI: `Phlp`, Since: 0.9.30 + * @HB_SCRIPT_SIDDHAM: `Sidd`, Since: 0.9.30 + * @HB_SCRIPT_TIRHUTA: `Tirh`, Since: 0.9.30 + * @HB_SCRIPT_WARANG_CITI: `Wara`, Since: 0.9.30 + * @HB_SCRIPT_AHOM: `Ahom`, Since: 0.9.30 + * @HB_SCRIPT_ANATOLIAN_HIEROGLYPHS: `Hluw`, Since: 0.9.30 + * @HB_SCRIPT_HATRAN: `Hatr`, Since: 0.9.30 + * @HB_SCRIPT_MULTANI: `Mult`, Since: 0.9.30 + * @HB_SCRIPT_OLD_HUNGARIAN: `Hung`, Since: 0.9.30 + * @HB_SCRIPT_SIGNWRITING: `Sgnw`, Since: 0.9.30 + * @HB_SCRIPT_ADLAM: `Adlm`, Since: 1.3.0 + * @HB_SCRIPT_BHAIKSUKI: `Bhks`, Since: 1.3.0 + * @HB_SCRIPT_MARCHEN: `Marc`, Since: 1.3.0 + * @HB_SCRIPT_OSAGE: `Osge`, Since: 1.3.0 + * @HB_SCRIPT_TANGUT: `Tang`, Since: 1.3.0 + * @HB_SCRIPT_NEWA: `Newa`, Since: 1.3.0 + * @HB_SCRIPT_MASARAM_GONDI: `Gonm`, Since: 1.6.0 + * @HB_SCRIPT_NUSHU: `Nshu`, Since: 1.6.0 + * @HB_SCRIPT_SOYOMBO: `Soyo`, Since: 1.6.0 + * @HB_SCRIPT_ZANABAZAR_SQUARE: `Zanb`, Since: 1.6.0 + * @HB_SCRIPT_DOGRA: `Dogr`, Since: 1.8.0 + * @HB_SCRIPT_GUNJALA_GONDI: `Gong`, Since: 1.8.0 + * @HB_SCRIPT_HANIFI_ROHINGYA: `Rohg`, Since: 1.8.0 + * @HB_SCRIPT_MAKASAR: `Maka`, Since: 1.8.0 + * @HB_SCRIPT_MEDEFAIDRIN: `Medf`, Since: 1.8.0 + * @HB_SCRIPT_OLD_SOGDIAN: `Sogo`, Since: 1.8.0 + * @HB_SCRIPT_SOGDIAN: `Sogd`, Since: 1.8.0 + * @HB_SCRIPT_ELYMAIC: `Elym`, Since: 2.4.0 + * @HB_SCRIPT_NANDINAGARI: `Nand`, Since: 2.4.0 + * @HB_SCRIPT_NYIAKENG_PUACHUE_HMONG: `Hmnp`, Since: 2.4.0 + * @HB_SCRIPT_WANCHO: `Wcho`, Since: 2.4.0 + * @HB_SCRIPT_CHORASMIAN: `Chrs`, Since: 2.6.7 + * @HB_SCRIPT_DIVES_AKURU: `Diak`, Since: 2.6.7 + * @HB_SCRIPT_KHITAN_SMALL_SCRIPT: `Kits`, Since: 2.6.7 + * @HB_SCRIPT_YEZIDI: `Yezi`, Since: 2.6.7 + * @HB_SCRIPT_CYPRO_MINOAN: `Cpmn`, Since: 3.0.0 + * @HB_SCRIPT_OLD_UYGHUR: `Ougr`, Since: 3.0.0 + * @HB_SCRIPT_TANGSA: `Tnsa`, Since: 3.0.0 + * @HB_SCRIPT_TOTO: `Toto`, Since: 3.0.0 + * @HB_SCRIPT_VITHKUQI: `Vith`, Since: 3.0.0 + * @HB_SCRIPT_MATH: `Zmth`, Since: 3.4.0 + * @HB_SCRIPT_KAWI: `Kawi`, Since: 5.2.0 + * @HB_SCRIPT_NAG_MUNDARI: `Nagm`, Since: 5.2.0 + * @HB_SCRIPT_INVALID: No script set + * + * Data type for scripts. Each #hb_script_t's value is an #hb_tag_t corresponding + * to the four-letter values defined by [ISO 15924](https://unicode.org/iso15924/). + * + * See also the Script (sc) property of the Unicode Character Database. + * + **/ + +/* https://docs.google.com/spreadsheets/d/1Y90M0Ie3MUJ6UVCRDOypOtijlMDLNNyyLk36T6iMu0o */ +typedef enum +{ + HB_SCRIPT_COMMON = HB_TAG ('Z','y','y','y'), /*1.1*/ + HB_SCRIPT_INHERITED = HB_TAG ('Z','i','n','h'), /*1.1*/ + HB_SCRIPT_UNKNOWN = HB_TAG ('Z','z','z','z'), /*5.0*/ + + HB_SCRIPT_ARABIC = HB_TAG ('A','r','a','b'), /*1.1*/ + HB_SCRIPT_ARMENIAN = HB_TAG ('A','r','m','n'), /*1.1*/ + HB_SCRIPT_BENGALI = HB_TAG ('B','e','n','g'), /*1.1*/ + HB_SCRIPT_CYRILLIC = HB_TAG ('C','y','r','l'), /*1.1*/ + HB_SCRIPT_DEVANAGARI = HB_TAG ('D','e','v','a'), /*1.1*/ + HB_SCRIPT_GEORGIAN = HB_TAG ('G','e','o','r'), /*1.1*/ + HB_SCRIPT_GREEK = HB_TAG ('G','r','e','k'), /*1.1*/ + HB_SCRIPT_GUJARATI = HB_TAG ('G','u','j','r'), /*1.1*/ + HB_SCRIPT_GURMUKHI = HB_TAG ('G','u','r','u'), /*1.1*/ + HB_SCRIPT_HANGUL = HB_TAG ('H','a','n','g'), /*1.1*/ + HB_SCRIPT_HAN = HB_TAG ('H','a','n','i'), /*1.1*/ + HB_SCRIPT_HEBREW = HB_TAG ('H','e','b','r'), /*1.1*/ + HB_SCRIPT_HIRAGANA = HB_TAG ('H','i','r','a'), /*1.1*/ + HB_SCRIPT_KANNADA = HB_TAG ('K','n','d','a'), /*1.1*/ + HB_SCRIPT_KATAKANA = HB_TAG ('K','a','n','a'), /*1.1*/ + HB_SCRIPT_LAO = HB_TAG ('L','a','o','o'), /*1.1*/ + HB_SCRIPT_LATIN = HB_TAG ('L','a','t','n'), /*1.1*/ + HB_SCRIPT_MALAYALAM = HB_TAG ('M','l','y','m'), /*1.1*/ + HB_SCRIPT_ORIYA = HB_TAG ('O','r','y','a'), /*1.1*/ + HB_SCRIPT_TAMIL = HB_TAG ('T','a','m','l'), /*1.1*/ + HB_SCRIPT_TELUGU = HB_TAG ('T','e','l','u'), /*1.1*/ + HB_SCRIPT_THAI = HB_TAG ('T','h','a','i'), /*1.1*/ + + HB_SCRIPT_TIBETAN = HB_TAG ('T','i','b','t'), /*2.0*/ + + HB_SCRIPT_BOPOMOFO = HB_TAG ('B','o','p','o'), /*3.0*/ + HB_SCRIPT_BRAILLE = HB_TAG ('B','r','a','i'), /*3.0*/ + HB_SCRIPT_CANADIAN_SYLLABICS = HB_TAG ('C','a','n','s'), /*3.0*/ + HB_SCRIPT_CHEROKEE = HB_TAG ('C','h','e','r'), /*3.0*/ + HB_SCRIPT_ETHIOPIC = HB_TAG ('E','t','h','i'), /*3.0*/ + HB_SCRIPT_KHMER = HB_TAG ('K','h','m','r'), /*3.0*/ + HB_SCRIPT_MONGOLIAN = HB_TAG ('M','o','n','g'), /*3.0*/ + HB_SCRIPT_MYANMAR = HB_TAG ('M','y','m','r'), /*3.0*/ + HB_SCRIPT_OGHAM = HB_TAG ('O','g','a','m'), /*3.0*/ + HB_SCRIPT_RUNIC = HB_TAG ('R','u','n','r'), /*3.0*/ + HB_SCRIPT_SINHALA = HB_TAG ('S','i','n','h'), /*3.0*/ + HB_SCRIPT_SYRIAC = HB_TAG ('S','y','r','c'), /*3.0*/ + HB_SCRIPT_THAANA = HB_TAG ('T','h','a','a'), /*3.0*/ + HB_SCRIPT_YI = HB_TAG ('Y','i','i','i'), /*3.0*/ + + HB_SCRIPT_DESERET = HB_TAG ('D','s','r','t'), /*3.1*/ + HB_SCRIPT_GOTHIC = HB_TAG ('G','o','t','h'), /*3.1*/ + HB_SCRIPT_OLD_ITALIC = HB_TAG ('I','t','a','l'), /*3.1*/ + + HB_SCRIPT_BUHID = HB_TAG ('B','u','h','d'), /*3.2*/ + HB_SCRIPT_HANUNOO = HB_TAG ('H','a','n','o'), /*3.2*/ + HB_SCRIPT_TAGALOG = HB_TAG ('T','g','l','g'), /*3.2*/ + HB_SCRIPT_TAGBANWA = HB_TAG ('T','a','g','b'), /*3.2*/ + + HB_SCRIPT_CYPRIOT = HB_TAG ('C','p','r','t'), /*4.0*/ + HB_SCRIPT_LIMBU = HB_TAG ('L','i','m','b'), /*4.0*/ + HB_SCRIPT_LINEAR_B = HB_TAG ('L','i','n','b'), /*4.0*/ + HB_SCRIPT_OSMANYA = HB_TAG ('O','s','m','a'), /*4.0*/ + HB_SCRIPT_SHAVIAN = HB_TAG ('S','h','a','w'), /*4.0*/ + HB_SCRIPT_TAI_LE = HB_TAG ('T','a','l','e'), /*4.0*/ + HB_SCRIPT_UGARITIC = HB_TAG ('U','g','a','r'), /*4.0*/ + + HB_SCRIPT_BUGINESE = HB_TAG ('B','u','g','i'), /*4.1*/ + HB_SCRIPT_COPTIC = HB_TAG ('C','o','p','t'), /*4.1*/ + HB_SCRIPT_GLAGOLITIC = HB_TAG ('G','l','a','g'), /*4.1*/ + HB_SCRIPT_KHAROSHTHI = HB_TAG ('K','h','a','r'), /*4.1*/ + HB_SCRIPT_NEW_TAI_LUE = HB_TAG ('T','a','l','u'), /*4.1*/ + HB_SCRIPT_OLD_PERSIAN = HB_TAG ('X','p','e','o'), /*4.1*/ + HB_SCRIPT_SYLOTI_NAGRI = HB_TAG ('S','y','l','o'), /*4.1*/ + HB_SCRIPT_TIFINAGH = HB_TAG ('T','f','n','g'), /*4.1*/ + + HB_SCRIPT_BALINESE = HB_TAG ('B','a','l','i'), /*5.0*/ + HB_SCRIPT_CUNEIFORM = HB_TAG ('X','s','u','x'), /*5.0*/ + HB_SCRIPT_NKO = HB_TAG ('N','k','o','o'), /*5.0*/ + HB_SCRIPT_PHAGS_PA = HB_TAG ('P','h','a','g'), /*5.0*/ + HB_SCRIPT_PHOENICIAN = HB_TAG ('P','h','n','x'), /*5.0*/ + + HB_SCRIPT_CARIAN = HB_TAG ('C','a','r','i'), /*5.1*/ + HB_SCRIPT_CHAM = HB_TAG ('C','h','a','m'), /*5.1*/ + HB_SCRIPT_KAYAH_LI = HB_TAG ('K','a','l','i'), /*5.1*/ + HB_SCRIPT_LEPCHA = HB_TAG ('L','e','p','c'), /*5.1*/ + HB_SCRIPT_LYCIAN = HB_TAG ('L','y','c','i'), /*5.1*/ + HB_SCRIPT_LYDIAN = HB_TAG ('L','y','d','i'), /*5.1*/ + HB_SCRIPT_OL_CHIKI = HB_TAG ('O','l','c','k'), /*5.1*/ + HB_SCRIPT_REJANG = HB_TAG ('R','j','n','g'), /*5.1*/ + HB_SCRIPT_SAURASHTRA = HB_TAG ('S','a','u','r'), /*5.1*/ + HB_SCRIPT_SUNDANESE = HB_TAG ('S','u','n','d'), /*5.1*/ + HB_SCRIPT_VAI = HB_TAG ('V','a','i','i'), /*5.1*/ + + HB_SCRIPT_AVESTAN = HB_TAG ('A','v','s','t'), /*5.2*/ + HB_SCRIPT_BAMUM = HB_TAG ('B','a','m','u'), /*5.2*/ + HB_SCRIPT_EGYPTIAN_HIEROGLYPHS = HB_TAG ('E','g','y','p'), /*5.2*/ + HB_SCRIPT_IMPERIAL_ARAMAIC = HB_TAG ('A','r','m','i'), /*5.2*/ + HB_SCRIPT_INSCRIPTIONAL_PAHLAVI = HB_TAG ('P','h','l','i'), /*5.2*/ + HB_SCRIPT_INSCRIPTIONAL_PARTHIAN = HB_TAG ('P','r','t','i'), /*5.2*/ + HB_SCRIPT_JAVANESE = HB_TAG ('J','a','v','a'), /*5.2*/ + HB_SCRIPT_KAITHI = HB_TAG ('K','t','h','i'), /*5.2*/ + HB_SCRIPT_LISU = HB_TAG ('L','i','s','u'), /*5.2*/ + HB_SCRIPT_MEETEI_MAYEK = HB_TAG ('M','t','e','i'), /*5.2*/ + HB_SCRIPT_OLD_SOUTH_ARABIAN = HB_TAG ('S','a','r','b'), /*5.2*/ + HB_SCRIPT_OLD_TURKIC = HB_TAG ('O','r','k','h'), /*5.2*/ + HB_SCRIPT_SAMARITAN = HB_TAG ('S','a','m','r'), /*5.2*/ + HB_SCRIPT_TAI_THAM = HB_TAG ('L','a','n','a'), /*5.2*/ + HB_SCRIPT_TAI_VIET = HB_TAG ('T','a','v','t'), /*5.2*/ + + HB_SCRIPT_BATAK = HB_TAG ('B','a','t','k'), /*6.0*/ + HB_SCRIPT_BRAHMI = HB_TAG ('B','r','a','h'), /*6.0*/ + HB_SCRIPT_MANDAIC = HB_TAG ('M','a','n','d'), /*6.0*/ + + HB_SCRIPT_CHAKMA = HB_TAG ('C','a','k','m'), /*6.1*/ + HB_SCRIPT_MEROITIC_CURSIVE = HB_TAG ('M','e','r','c'), /*6.1*/ + HB_SCRIPT_MEROITIC_HIEROGLYPHS = HB_TAG ('M','e','r','o'), /*6.1*/ + HB_SCRIPT_MIAO = HB_TAG ('P','l','r','d'), /*6.1*/ + HB_SCRIPT_SHARADA = HB_TAG ('S','h','r','d'), /*6.1*/ + HB_SCRIPT_SORA_SOMPENG = HB_TAG ('S','o','r','a'), /*6.1*/ + HB_SCRIPT_TAKRI = HB_TAG ('T','a','k','r'), /*6.1*/ + + /* + * Since: 0.9.30 + */ + HB_SCRIPT_BASSA_VAH = HB_TAG ('B','a','s','s'), /*7.0*/ + HB_SCRIPT_CAUCASIAN_ALBANIAN = HB_TAG ('A','g','h','b'), /*7.0*/ + HB_SCRIPT_DUPLOYAN = HB_TAG ('D','u','p','l'), /*7.0*/ + HB_SCRIPT_ELBASAN = HB_TAG ('E','l','b','a'), /*7.0*/ + HB_SCRIPT_GRANTHA = HB_TAG ('G','r','a','n'), /*7.0*/ + HB_SCRIPT_KHOJKI = HB_TAG ('K','h','o','j'), /*7.0*/ + HB_SCRIPT_KHUDAWADI = HB_TAG ('S','i','n','d'), /*7.0*/ + HB_SCRIPT_LINEAR_A = HB_TAG ('L','i','n','a'), /*7.0*/ + HB_SCRIPT_MAHAJANI = HB_TAG ('M','a','h','j'), /*7.0*/ + HB_SCRIPT_MANICHAEAN = HB_TAG ('M','a','n','i'), /*7.0*/ + HB_SCRIPT_MENDE_KIKAKUI = HB_TAG ('M','e','n','d'), /*7.0*/ + HB_SCRIPT_MODI = HB_TAG ('M','o','d','i'), /*7.0*/ + HB_SCRIPT_MRO = HB_TAG ('M','r','o','o'), /*7.0*/ + HB_SCRIPT_NABATAEAN = HB_TAG ('N','b','a','t'), /*7.0*/ + HB_SCRIPT_OLD_NORTH_ARABIAN = HB_TAG ('N','a','r','b'), /*7.0*/ + HB_SCRIPT_OLD_PERMIC = HB_TAG ('P','e','r','m'), /*7.0*/ + HB_SCRIPT_PAHAWH_HMONG = HB_TAG ('H','m','n','g'), /*7.0*/ + HB_SCRIPT_PALMYRENE = HB_TAG ('P','a','l','m'), /*7.0*/ + HB_SCRIPT_PAU_CIN_HAU = HB_TAG ('P','a','u','c'), /*7.0*/ + HB_SCRIPT_PSALTER_PAHLAVI = HB_TAG ('P','h','l','p'), /*7.0*/ + HB_SCRIPT_SIDDHAM = HB_TAG ('S','i','d','d'), /*7.0*/ + HB_SCRIPT_TIRHUTA = HB_TAG ('T','i','r','h'), /*7.0*/ + HB_SCRIPT_WARANG_CITI = HB_TAG ('W','a','r','a'), /*7.0*/ + + HB_SCRIPT_AHOM = HB_TAG ('A','h','o','m'), /*8.0*/ + HB_SCRIPT_ANATOLIAN_HIEROGLYPHS = HB_TAG ('H','l','u','w'), /*8.0*/ + HB_SCRIPT_HATRAN = HB_TAG ('H','a','t','r'), /*8.0*/ + HB_SCRIPT_MULTANI = HB_TAG ('M','u','l','t'), /*8.0*/ + HB_SCRIPT_OLD_HUNGARIAN = HB_TAG ('H','u','n','g'), /*8.0*/ + HB_SCRIPT_SIGNWRITING = HB_TAG ('S','g','n','w'), /*8.0*/ + + /* + * Since 1.3.0 + */ + HB_SCRIPT_ADLAM = HB_TAG ('A','d','l','m'), /*9.0*/ + HB_SCRIPT_BHAIKSUKI = HB_TAG ('B','h','k','s'), /*9.0*/ + HB_SCRIPT_MARCHEN = HB_TAG ('M','a','r','c'), /*9.0*/ + HB_SCRIPT_OSAGE = HB_TAG ('O','s','g','e'), /*9.0*/ + HB_SCRIPT_TANGUT = HB_TAG ('T','a','n','g'), /*9.0*/ + HB_SCRIPT_NEWA = HB_TAG ('N','e','w','a'), /*9.0*/ + + /* + * Since 1.6.0 + */ + HB_SCRIPT_MASARAM_GONDI = HB_TAG ('G','o','n','m'), /*10.0*/ + HB_SCRIPT_NUSHU = HB_TAG ('N','s','h','u'), /*10.0*/ + HB_SCRIPT_SOYOMBO = HB_TAG ('S','o','y','o'), /*10.0*/ + HB_SCRIPT_ZANABAZAR_SQUARE = HB_TAG ('Z','a','n','b'), /*10.0*/ + + /* + * Since 1.8.0 + */ + HB_SCRIPT_DOGRA = HB_TAG ('D','o','g','r'), /*11.0*/ + HB_SCRIPT_GUNJALA_GONDI = HB_TAG ('G','o','n','g'), /*11.0*/ + HB_SCRIPT_HANIFI_ROHINGYA = HB_TAG ('R','o','h','g'), /*11.0*/ + HB_SCRIPT_MAKASAR = HB_TAG ('M','a','k','a'), /*11.0*/ + HB_SCRIPT_MEDEFAIDRIN = HB_TAG ('M','e','d','f'), /*11.0*/ + HB_SCRIPT_OLD_SOGDIAN = HB_TAG ('S','o','g','o'), /*11.0*/ + HB_SCRIPT_SOGDIAN = HB_TAG ('S','o','g','d'), /*11.0*/ + + /* + * Since 2.4.0 + */ + HB_SCRIPT_ELYMAIC = HB_TAG ('E','l','y','m'), /*12.0*/ + HB_SCRIPT_NANDINAGARI = HB_TAG ('N','a','n','d'), /*12.0*/ + HB_SCRIPT_NYIAKENG_PUACHUE_HMONG = HB_TAG ('H','m','n','p'), /*12.0*/ + HB_SCRIPT_WANCHO = HB_TAG ('W','c','h','o'), /*12.0*/ + + /* + * Since 2.6.7 + */ + HB_SCRIPT_CHORASMIAN = HB_TAG ('C','h','r','s'), /*13.0*/ + HB_SCRIPT_DIVES_AKURU = HB_TAG ('D','i','a','k'), /*13.0*/ + HB_SCRIPT_KHITAN_SMALL_SCRIPT = HB_TAG ('K','i','t','s'), /*13.0*/ + HB_SCRIPT_YEZIDI = HB_TAG ('Y','e','z','i'), /*13.0*/ + + /* + * Since 3.0.0 + */ + HB_SCRIPT_CYPRO_MINOAN = HB_TAG ('C','p','m','n'), /*14.0*/ + HB_SCRIPT_OLD_UYGHUR = HB_TAG ('O','u','g','r'), /*14.0*/ + HB_SCRIPT_TANGSA = HB_TAG ('T','n','s','a'), /*14.0*/ + HB_SCRIPT_TOTO = HB_TAG ('T','o','t','o'), /*14.0*/ + HB_SCRIPT_VITHKUQI = HB_TAG ('V','i','t','h'), /*14.0*/ + + /* + * Since 3.4.0 + */ + HB_SCRIPT_MATH = HB_TAG ('Z','m','t','h'), + + /* + * Since 5.2.0 + */ + HB_SCRIPT_KAWI = HB_TAG ('K','a','w','i'), /*15.0*/ + HB_SCRIPT_NAG_MUNDARI = HB_TAG ('N','a','g','m'), /*15.0*/ + + /* No script set. */ + HB_SCRIPT_INVALID = HB_TAG_NONE, + + /*< private >*/ + + /* Dummy values to ensure any hb_tag_t value can be passed/stored as hb_script_t + * without risking undefined behavior. We have two, for historical reasons. + * HB_TAG_MAX used to be unsigned, but that was invalid Ansi C, so was changed + * to _HB_SCRIPT_MAX_VALUE to be equal to HB_TAG_MAX_SIGNED as well. + * + * See this thread for technicalities: + * + * https://lists.freedesktop.org/archives/harfbuzz/2014-March/004150.html + */ + _HB_SCRIPT_MAX_VALUE = HB_TAG_MAX_SIGNED, /*< skip >*/ + _HB_SCRIPT_MAX_VALUE_SIGNED = HB_TAG_MAX_SIGNED /*< skip >*/ + +} hb_script_t; + + +/* Script functions */ + +HB_EXTERN hb_script_t +hb_script_from_iso15924_tag (hb_tag_t tag); + +HB_EXTERN hb_script_t +hb_script_from_string (const char *str, int len); + +HB_EXTERN hb_tag_t +hb_script_to_iso15924_tag (hb_script_t script); + +HB_EXTERN hb_direction_t +hb_script_get_horizontal_direction (hb_script_t script); + + +/* User data */ + +/** + * hb_user_data_key_t: + * + * Data structure for holding user-data keys. + * + **/ +typedef struct hb_user_data_key_t { + /*< private >*/ + char unused; +} hb_user_data_key_t; + +/** + * hb_destroy_func_t: + * @user_data: the data to be destroyed + * + * A virtual method for destroy user-data callbacks. + * + */ +typedef void (*hb_destroy_func_t) (void *user_data); + + +/* Font features and variations. */ + +/** + * HB_FEATURE_GLOBAL_START: + * + * Special setting for #hb_feature_t.start to apply the feature from the start + * of the buffer. + * + * Since: 2.0.0 + */ +#define HB_FEATURE_GLOBAL_START 0 + +/** + * HB_FEATURE_GLOBAL_END: + * + * Special setting for #hb_feature_t.end to apply the feature from to the end + * of the buffer. + * + * Since: 2.0.0 + */ +#define HB_FEATURE_GLOBAL_END ((unsigned int) -1) + +/** + * hb_feature_t: + * @tag: The #hb_tag_t tag of the feature + * @value: The value of the feature. 0 disables the feature, non-zero (usually + * 1) enables the feature. For features implemented as lookup type 3 (like + * 'salt') the @value is a one based index into the alternates. + * @start: the cluster to start applying this feature setting (inclusive). + * @end: the cluster to end applying this feature setting (exclusive). + * + * The #hb_feature_t is the structure that holds information about requested + * feature application. The feature will be applied with the given value to all + * glyphs which are in clusters between @start (inclusive) and @end (exclusive). + * Setting start to #HB_FEATURE_GLOBAL_START and end to #HB_FEATURE_GLOBAL_END + * specifies that the feature always applies to the entire buffer. + */ +typedef struct hb_feature_t { + hb_tag_t tag; + uint32_t value; + unsigned int start; + unsigned int end; +} hb_feature_t; + +HB_EXTERN hb_bool_t +hb_feature_from_string (const char *str, int len, + hb_feature_t *feature); + +HB_EXTERN void +hb_feature_to_string (hb_feature_t *feature, + char *buf, unsigned int size); + +/** + * hb_variation_t: + * @tag: The #hb_tag_t tag of the variation-axis name + * @value: The value of the variation axis + * + * Data type for holding variation data. Registered OpenType + * variation-axis tags are listed in + * [OpenType Axis Tag Registry](https://docs.microsoft.com/en-us/typography/opentype/spec/dvaraxisreg). + * + * Since: 1.4.2 + */ +typedef struct hb_variation_t { + hb_tag_t tag; + float value; +} hb_variation_t; + +HB_EXTERN hb_bool_t +hb_variation_from_string (const char *str, int len, + hb_variation_t *variation); + +HB_EXTERN void +hb_variation_to_string (hb_variation_t *variation, + char *buf, unsigned int size); + +/** + * hb_color_t: + * + * Data type for holding color values. Colors are eight bits per + * channel RGB plus alpha transparency. + * + * Since: 2.1.0 + */ +typedef uint32_t hb_color_t; + +/** + * HB_COLOR: + * @b: blue channel value + * @g: green channel value + * @r: red channel value + * @a: alpha channel value + * + * Constructs an #hb_color_t from four integers. + * + * Since: 2.1.0 + */ +#define HB_COLOR(b,g,r,a) ((hb_color_t) HB_TAG ((b),(g),(r),(a))) + +HB_EXTERN uint8_t +hb_color_get_alpha (hb_color_t color); +#define hb_color_get_alpha(color) ((color) & 0xFF) + +HB_EXTERN uint8_t +hb_color_get_red (hb_color_t color); +#define hb_color_get_red(color) (((color) >> 8) & 0xFF) + +HB_EXTERN uint8_t +hb_color_get_green (hb_color_t color); +#define hb_color_get_green(color) (((color) >> 16) & 0xFF) + +HB_EXTERN uint8_t +hb_color_get_blue (hb_color_t color); +#define hb_color_get_blue(color) (((color) >> 24) & 0xFF) + +/** + * hb_glyph_extents_t: + * @x_bearing: Distance from the x-origin to the left extremum of the glyph. + * @y_bearing: Distance from the top extremum of the glyph to the y-origin. + * @width: Distance from the left extremum of the glyph to the right extremum. + * @height: Distance from the top extremum of the glyph to the bottom extremum. + * + * Glyph extent values, measured in font units. + * + * Note that @height is negative, in coordinate systems that grow up. + **/ +typedef struct hb_glyph_extents_t { + hb_position_t x_bearing; + hb_position_t y_bearing; + hb_position_t width; + hb_position_t height; +} hb_glyph_extents_t; + +/** + * hb_font_t: + * + * Data type for holding fonts. + * + */ +typedef struct hb_font_t hb_font_t; + +HB_END_DECLS + +#endif /* HB_COMMON_H */ |