#![allow(non_camel_case_types)]

#[cfg(any(target_os = "android", all(unix, not(target_os = "macos"))))]
extern crate freetype_sys;

extern crate libc;

/* automatically generated by rust-bindgen */

pub type int8_t = ::libc::c_char;
pub type int16_t = ::libc::c_short;
pub type int32_t = ::libc::c_int;
pub type int64_t = ::libc::c_long;
pub type uint8_t = ::libc::c_uchar;
pub type uint16_t = ::libc::c_ushort;
pub type uint32_t = ::libc::c_uint;
pub type uint64_t = ::libc::c_ulong;
pub type int_least8_t = ::libc::c_char;
pub type int_least16_t = ::libc::c_short;
pub type int_least32_t = ::libc::c_int;
pub type int_least64_t = ::libc::c_long;
pub type uint_least8_t = ::libc::c_uchar;
pub type uint_least16_t = ::libc::c_ushort;
pub type uint_least32_t = ::libc::c_uint;
pub type uint_least64_t = ::libc::c_ulong;
pub type int_fast8_t = ::libc::c_char;
pub type int_fast16_t = ::libc::c_long;
pub type int_fast32_t = ::libc::c_long;
pub type int_fast64_t = ::libc::c_long;
pub type uint_fast8_t = ::libc::c_uchar;
pub type uint_fast16_t = ::libc::c_ulong;
pub type uint_fast32_t = ::libc::c_ulong;
pub type uint_fast64_t = ::libc::c_ulong;
pub type intptr_t = ::libc::c_long;
pub type uintptr_t = ::libc::c_ulong;
pub type intmax_t = ::libc::c_long;
pub type uintmax_t = ::libc::c_ulong;
pub type hb_bool_t = ::libc::c_int;
pub type hb_codepoint_t = uint32_t;
pub type hb_position_t = int32_t;
pub type hb_mask_t = uint32_t;
#[repr(C)]
#[derive(Copy)]
pub struct Union__hb_var_int_t {
    pub _bindgen_data_: [u32; 1usize],
}
impl Union__hb_var_int_t {
    pub unsafe fn u32(&mut self) -> *mut uint32_t {
        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
        ::std::mem::transmute(raw.offset(0))
    }
    pub unsafe fn i32(&mut self) -> *mut int32_t {
        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
        ::std::mem::transmute(raw.offset(0))
    }
    pub unsafe fn u16(&mut self) -> *mut [uint16_t; 2usize] {
        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
        ::std::mem::transmute(raw.offset(0))
    }
    pub unsafe fn i16(&mut self) -> *mut [int16_t; 2usize] {
        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
        ::std::mem::transmute(raw.offset(0))
    }
    pub unsafe fn u8(&mut self) -> *mut [uint8_t; 4usize] {
        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
        ::std::mem::transmute(raw.offset(0))
    }
    pub unsafe fn i8(&mut self) -> *mut [int8_t; 4usize] {
        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
        ::std::mem::transmute(raw.offset(0))
    }
}
impl ::std::clone::Clone for Union__hb_var_int_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Union__hb_var_int_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_var_int_t = Union__hb_var_int_t;
pub type hb_tag_t = uint32_t;
pub type Enum_Unnamed1 = ::libc::c_uint;
pub const HB_DIRECTION_INVALID: ::libc::c_uint = 0;
pub const HB_DIRECTION_LTR: ::libc::c_uint = 4;
pub const HB_DIRECTION_RTL: ::libc::c_uint = 5;
pub const HB_DIRECTION_TTB: ::libc::c_uint = 6;
pub const HB_DIRECTION_BTT: ::libc::c_uint = 7;
pub type hb_direction_t = Enum_Unnamed1;
pub enum Struct_hb_language_impl_t { }
pub type hb_language_t = *const Struct_hb_language_impl_t;
pub type Enum_Unnamed2 = ::libc::c_uint;
pub const HB_SCRIPT_COMMON: ::libc::c_uint = 1517910393;
pub const HB_SCRIPT_INHERITED: ::libc::c_uint = 1516858984;
pub const HB_SCRIPT_UNKNOWN: ::libc::c_uint = 1517976186;
pub const HB_SCRIPT_ARABIC: ::libc::c_uint = 1098015074;
pub const HB_SCRIPT_ARMENIAN: ::libc::c_uint = 1098018158;
pub const HB_SCRIPT_BENGALI: ::libc::c_uint = 1113943655;
pub const HB_SCRIPT_CYRILLIC: ::libc::c_uint = 1132032620;
pub const HB_SCRIPT_DEVANAGARI: ::libc::c_uint = 1147500129;
pub const HB_SCRIPT_GEORGIAN: ::libc::c_uint = 1197830002;
pub const HB_SCRIPT_GREEK: ::libc::c_uint = 1198679403;
pub const HB_SCRIPT_GUJARATI: ::libc::c_uint = 1198877298;
pub const HB_SCRIPT_GURMUKHI: ::libc::c_uint = 1198879349;
pub const HB_SCRIPT_HANGUL: ::libc::c_uint = 1214344807;
pub const HB_SCRIPT_HAN: ::libc::c_uint = 1214344809;
pub const HB_SCRIPT_HEBREW: ::libc::c_uint = 1214603890;
pub const HB_SCRIPT_HIRAGANA: ::libc::c_uint = 1214870113;
pub const HB_SCRIPT_KANNADA: ::libc::c_uint = 1265525857;
pub const HB_SCRIPT_KATAKANA: ::libc::c_uint = 1264676449;
pub const HB_SCRIPT_LAO: ::libc::c_uint = 1281453935;
pub const HB_SCRIPT_LATIN: ::libc::c_uint = 1281455214;
pub const HB_SCRIPT_MALAYALAM: ::libc::c_uint = 1298954605;
pub const HB_SCRIPT_ORIYA: ::libc::c_uint = 1332902241;
pub const HB_SCRIPT_TAMIL: ::libc::c_uint = 1415671148;
pub const HB_SCRIPT_TELUGU: ::libc::c_uint = 1415933045;
pub const HB_SCRIPT_THAI: ::libc::c_uint = 1416126825;
pub const HB_SCRIPT_TIBETAN: ::libc::c_uint = 1416192628;
pub const HB_SCRIPT_BOPOMOFO: ::libc::c_uint = 1114599535;
pub const HB_SCRIPT_BRAILLE: ::libc::c_uint = 1114792297;
pub const HB_SCRIPT_CANADIAN_SYLLABICS: ::libc::c_uint = 1130458739;
pub const HB_SCRIPT_CHEROKEE: ::libc::c_uint = 1130915186;
pub const HB_SCRIPT_ETHIOPIC: ::libc::c_uint = 1165256809;
pub const HB_SCRIPT_KHMER: ::libc::c_uint = 1265134962;
pub const HB_SCRIPT_MONGOLIAN: ::libc::c_uint = 1299148391;
pub const HB_SCRIPT_MYANMAR: ::libc::c_uint = 1299803506;
pub const HB_SCRIPT_OGHAM: ::libc::c_uint = 1332175213;
pub const HB_SCRIPT_RUNIC: ::libc::c_uint = 1383427698;
pub const HB_SCRIPT_SINHALA: ::libc::c_uint = 1399418472;
pub const HB_SCRIPT_SYRIAC: ::libc::c_uint = 1400468067;
pub const HB_SCRIPT_THAANA: ::libc::c_uint = 1416126817;
pub const HB_SCRIPT_YI: ::libc::c_uint = 1500080489;
pub const HB_SCRIPT_DESERET: ::libc::c_uint = 1148416628;
pub const HB_SCRIPT_GOTHIC: ::libc::c_uint = 1198486632;
pub const HB_SCRIPT_OLD_ITALIC: ::libc::c_uint = 1232363884;
pub const HB_SCRIPT_BUHID: ::libc::c_uint = 1114990692;
pub const HB_SCRIPT_HANUNOO: ::libc::c_uint = 1214344815;
pub const HB_SCRIPT_TAGALOG: ::libc::c_uint = 1416064103;
pub const HB_SCRIPT_TAGBANWA: ::libc::c_uint = 1415669602;
pub const HB_SCRIPT_CYPRIOT: ::libc::c_uint = 1131442804;
pub const HB_SCRIPT_LIMBU: ::libc::c_uint = 1281977698;
pub const HB_SCRIPT_LINEAR_B: ::libc::c_uint = 1281977954;
pub const HB_SCRIPT_OSMANYA: ::libc::c_uint = 1332964705;
pub const HB_SCRIPT_SHAVIAN: ::libc::c_uint = 1399349623;
pub const HB_SCRIPT_TAI_LE: ::libc::c_uint = 1415670885;
pub const HB_SCRIPT_UGARITIC: ::libc::c_uint = 1432838514;
pub const HB_SCRIPT_BUGINESE: ::libc::c_uint = 1114990441;
pub const HB_SCRIPT_COPTIC: ::libc::c_uint = 1131376756;
pub const HB_SCRIPT_GLAGOLITIC: ::libc::c_uint = 1198285159;
pub const HB_SCRIPT_KHAROSHTHI: ::libc::c_uint = 1265131890;
pub const HB_SCRIPT_NEW_TAI_LUE: ::libc::c_uint = 1415670901;
pub const HB_SCRIPT_OLD_PERSIAN: ::libc::c_uint = 1483761007;
pub const HB_SCRIPT_SYLOTI_NAGRI: ::libc::c_uint = 1400466543;
pub const HB_SCRIPT_TIFINAGH: ::libc::c_uint = 1415999079;
pub const HB_SCRIPT_BALINESE: ::libc::c_uint = 1113681001;
pub const HB_SCRIPT_CUNEIFORM: ::libc::c_uint = 1483961720;
pub const HB_SCRIPT_NKO: ::libc::c_uint = 1315663727;
pub const HB_SCRIPT_PHAGS_PA: ::libc::c_uint = 1349017959;
pub const HB_SCRIPT_PHOENICIAN: ::libc::c_uint = 1349021304;
pub const HB_SCRIPT_CARIAN: ::libc::c_uint = 1130459753;
pub const HB_SCRIPT_CHAM: ::libc::c_uint = 1130914157;
pub const HB_SCRIPT_KAYAH_LI: ::libc::c_uint = 1264675945;
pub const HB_SCRIPT_LEPCHA: ::libc::c_uint = 1281716323;
pub const HB_SCRIPT_LYCIAN: ::libc::c_uint = 1283023721;
pub const HB_SCRIPT_LYDIAN: ::libc::c_uint = 1283023977;
pub const HB_SCRIPT_OL_CHIKI: ::libc::c_uint = 1332503403;
pub const HB_SCRIPT_REJANG: ::libc::c_uint = 1382706791;
pub const HB_SCRIPT_SAURASHTRA: ::libc::c_uint = 1398895986;
pub const HB_SCRIPT_SUNDANESE: ::libc::c_uint = 1400204900;
pub const HB_SCRIPT_VAI: ::libc::c_uint = 1449224553;
pub const HB_SCRIPT_AVESTAN: ::libc::c_uint = 1098281844;
pub const HB_SCRIPT_BAMUM: ::libc::c_uint = 1113681269;
pub const HB_SCRIPT_EGYPTIAN_HIEROGLYPHS: ::libc::c_uint = 1164409200;
pub const HB_SCRIPT_IMPERIAL_ARAMAIC: ::libc::c_uint = 1098018153;
pub const HB_SCRIPT_INSCRIPTIONAL_PAHLAVI: ::libc::c_uint = 1349020777;
pub const HB_SCRIPT_INSCRIPTIONAL_PARTHIAN: ::libc::c_uint = 1349678185;
pub const HB_SCRIPT_JAVANESE: ::libc::c_uint = 1247901281;
pub const HB_SCRIPT_KAITHI: ::libc::c_uint = 1265920105;
pub const HB_SCRIPT_LISU: ::libc::c_uint = 1281979253;
pub const HB_SCRIPT_MEETEI_MAYEK: ::libc::c_uint = 1299473769;
pub const HB_SCRIPT_OLD_SOUTH_ARABIAN: ::libc::c_uint = 1398895202;
pub const HB_SCRIPT_OLD_TURKIC: ::libc::c_uint = 1332898664;
pub const HB_SCRIPT_SAMARITAN: ::libc::c_uint = 1398893938;
pub const HB_SCRIPT_TAI_THAM: ::libc::c_uint = 1281453665;
pub const HB_SCRIPT_TAI_VIET: ::libc::c_uint = 1415673460;
pub const HB_SCRIPT_BATAK: ::libc::c_uint = 1113683051;
pub const HB_SCRIPT_BRAHMI: ::libc::c_uint = 1114792296;
pub const HB_SCRIPT_MANDAIC: ::libc::c_uint = 1298230884;
pub const HB_SCRIPT_CHAKMA: ::libc::c_uint = 1130457965;
pub const HB_SCRIPT_MEROITIC_CURSIVE: ::libc::c_uint = 1298494051;
pub const HB_SCRIPT_MEROITIC_HIEROGLYPHS: ::libc::c_uint = 1298494063;
pub const HB_SCRIPT_MIAO: ::libc::c_uint = 1349284452;
pub const HB_SCRIPT_SHARADA: ::libc::c_uint = 1399353956;
pub const HB_SCRIPT_SORA_SOMPENG: ::libc::c_uint = 1399812705;
pub const HB_SCRIPT_TAKRI: ::libc::c_uint = 1415670642;
pub const HB_SCRIPT_BASSA_VAH: ::libc::c_uint = 1113682803;
pub const HB_SCRIPT_CAUCASIAN_ALBANIAN: ::libc::c_uint = 1097295970;
pub const HB_SCRIPT_DUPLOYAN: ::libc::c_uint = 1148547180;
pub const HB_SCRIPT_ELBASAN: ::libc::c_uint = 1164730977;
pub const HB_SCRIPT_GRANTHA: ::libc::c_uint = 1198678382;
pub const HB_SCRIPT_KHOJKI: ::libc::c_uint = 1265135466;
pub const HB_SCRIPT_KHUDAWADI: ::libc::c_uint = 1399418468;
pub const HB_SCRIPT_LINEAR_A: ::libc::c_uint = 1281977953;
pub const HB_SCRIPT_MAHAJANI: ::libc::c_uint = 1298229354;
pub const HB_SCRIPT_MANICHAEAN: ::libc::c_uint = 1298230889;
pub const HB_SCRIPT_MENDE_KIKAKUI: ::libc::c_uint = 1298493028;
pub const HB_SCRIPT_MODI: ::libc::c_uint = 1299145833;
pub const HB_SCRIPT_MRO: ::libc::c_uint = 1299345263;
pub const HB_SCRIPT_NABATAEAN: ::libc::c_uint = 1315070324;
pub const HB_SCRIPT_OLD_NORTH_ARABIAN: ::libc::c_uint = 1315009122;
pub const HB_SCRIPT_OLD_PERMIC: ::libc::c_uint = 1348825709;
pub const HB_SCRIPT_PAHAWH_HMONG: ::libc::c_uint = 1215131239;
pub const HB_SCRIPT_PALMYRENE: ::libc::c_uint = 1348562029;
pub const HB_SCRIPT_PAU_CIN_HAU: ::libc::c_uint = 1348564323;
pub const HB_SCRIPT_PSALTER_PAHLAVI: ::libc::c_uint = 1349020784;
pub const HB_SCRIPT_SIDDHAM: ::libc::c_uint = 1399415908;
pub const HB_SCRIPT_TIRHUTA: ::libc::c_uint = 1416196712;
pub const HB_SCRIPT_WARANG_CITI: ::libc::c_uint = 1466004065;
pub const HB_SCRIPT_AHOM: ::libc::c_uint = 1097363309;
pub const HB_SCRIPT_ANATOLIAN_HIEROGLYPHS: ::libc::c_uint = 1215067511;
pub const HB_SCRIPT_HATRAN: ::libc::c_uint = 1214346354;
pub const HB_SCRIPT_MULTANI: ::libc::c_uint = 1299541108;
pub const HB_SCRIPT_OLD_HUNGARIAN: ::libc::c_uint = 1215655527;
pub const HB_SCRIPT_SIGNWRITING: ::libc::c_uint = 1399287415;
pub const HB_SCRIPT_INVALID: ::libc::c_uint = 0;
pub const _HB_SCRIPT_MAX_VALUE: ::libc::c_uint = !0;
pub const _HB_SCRIPT_MAX_VALUE_SIGNED: ::libc::c_uint = 2147483647;
pub type hb_script_t = Enum_Unnamed2;
#[repr(C)]
#[derive(Copy)]
pub struct Struct_hb_user_data_key_t {
    pub unused: ::libc::c_char,
}
impl ::std::clone::Clone for Struct_hb_user_data_key_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Struct_hb_user_data_key_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_user_data_key_t = Struct_hb_user_data_key_t;
pub type hb_destroy_func_t =
    ::std::option::Option<extern "C" fn(user_data: *mut ::libc::c_void)
                              -> ()>;
pub type Enum_Unnamed3 = ::libc::c_uint;
pub const HB_MEMORY_MODE_DUPLICATE: ::libc::c_uint = 0;
pub const HB_MEMORY_MODE_READONLY: ::libc::c_uint = 1;
pub const HB_MEMORY_MODE_WRITABLE: ::libc::c_uint = 2;
pub const HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE: ::libc::c_uint = 3;
pub type hb_memory_mode_t = Enum_Unnamed3;
pub enum Struct_hb_blob_t { }
pub type hb_blob_t = Struct_hb_blob_t;
pub type Enum_Unnamed4 = ::libc::c_uint;
pub const HB_UNICODE_GENERAL_CATEGORY_CONTROL: ::libc::c_uint = 0;
pub const HB_UNICODE_GENERAL_CATEGORY_FORMAT: ::libc::c_uint = 1;
pub const HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED: ::libc::c_uint = 2;
pub const HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE: ::libc::c_uint = 3;
pub const HB_UNICODE_GENERAL_CATEGORY_SURROGATE: ::libc::c_uint = 4;
pub const HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER: ::libc::c_uint = 5;
pub const HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER: ::libc::c_uint = 6;
pub const HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER: ::libc::c_uint = 7;
pub const HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER: ::libc::c_uint = 8;
pub const HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER: ::libc::c_uint = 9;
pub const HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK: ::libc::c_uint = 10;
pub const HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK: ::libc::c_uint = 11;
pub const HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK: ::libc::c_uint = 12;
pub const HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER: ::libc::c_uint = 13;
pub const HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER: ::libc::c_uint = 14;
pub const HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER: ::libc::c_uint = 15;
pub const HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION: ::libc::c_uint =
    16;
pub const HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION: ::libc::c_uint = 17;
pub const HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION: ::libc::c_uint = 18;
pub const HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION: ::libc::c_uint = 19;
pub const HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION: ::libc::c_uint =
    20;
pub const HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION: ::libc::c_uint = 21;
pub const HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION: ::libc::c_uint = 22;
pub const HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL: ::libc::c_uint = 23;
pub const HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL: ::libc::c_uint = 24;
pub const HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL: ::libc::c_uint = 25;
pub const HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL: ::libc::c_uint = 26;
pub const HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR: ::libc::c_uint = 27;
pub const HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR: ::libc::c_uint =
    28;
pub const HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR: ::libc::c_uint = 29;
pub type hb_unicode_general_category_t = Enum_Unnamed4;
pub type Enum_Unnamed5 = ::libc::c_uint;
pub const HB_UNICODE_COMBINING_CLASS_NOT_REORDERED: ::libc::c_uint = 0;
pub const HB_UNICODE_COMBINING_CLASS_OVERLAY: ::libc::c_uint = 1;
pub const HB_UNICODE_COMBINING_CLASS_NUKTA: ::libc::c_uint = 7;
pub const HB_UNICODE_COMBINING_CLASS_KANA_VOICING: ::libc::c_uint = 8;
pub const HB_UNICODE_COMBINING_CLASS_VIRAMA: ::libc::c_uint = 9;
pub const HB_UNICODE_COMBINING_CLASS_CCC10: ::libc::c_uint = 10;
pub const HB_UNICODE_COMBINING_CLASS_CCC11: ::libc::c_uint = 11;
pub const HB_UNICODE_COMBINING_CLASS_CCC12: ::libc::c_uint = 12;
pub const HB_UNICODE_COMBINING_CLASS_CCC13: ::libc::c_uint = 13;
pub const HB_UNICODE_COMBINING_CLASS_CCC14: ::libc::c_uint = 14;
pub const HB_UNICODE_COMBINING_CLASS_CCC15: ::libc::c_uint = 15;
pub const HB_UNICODE_COMBINING_CLASS_CCC16: ::libc::c_uint = 16;
pub const HB_UNICODE_COMBINING_CLASS_CCC17: ::libc::c_uint = 17;
pub const HB_UNICODE_COMBINING_CLASS_CCC18: ::libc::c_uint = 18;
pub const HB_UNICODE_COMBINING_CLASS_CCC19: ::libc::c_uint = 19;
pub const HB_UNICODE_COMBINING_CLASS_CCC20: ::libc::c_uint = 20;
pub const HB_UNICODE_COMBINING_CLASS_CCC21: ::libc::c_uint = 21;
pub const HB_UNICODE_COMBINING_CLASS_CCC22: ::libc::c_uint = 22;
pub const HB_UNICODE_COMBINING_CLASS_CCC23: ::libc::c_uint = 23;
pub const HB_UNICODE_COMBINING_CLASS_CCC24: ::libc::c_uint = 24;
pub const HB_UNICODE_COMBINING_CLASS_CCC25: ::libc::c_uint = 25;
pub const HB_UNICODE_COMBINING_CLASS_CCC26: ::libc::c_uint = 26;
pub const HB_UNICODE_COMBINING_CLASS_CCC27: ::libc::c_uint = 27;
pub const HB_UNICODE_COMBINING_CLASS_CCC28: ::libc::c_uint = 28;
pub const HB_UNICODE_COMBINING_CLASS_CCC29: ::libc::c_uint = 29;
pub const HB_UNICODE_COMBINING_CLASS_CCC30: ::libc::c_uint = 30;
pub const HB_UNICODE_COMBINING_CLASS_CCC31: ::libc::c_uint = 31;
pub const HB_UNICODE_COMBINING_CLASS_CCC32: ::libc::c_uint = 32;
pub const HB_UNICODE_COMBINING_CLASS_CCC33: ::libc::c_uint = 33;
pub const HB_UNICODE_COMBINING_CLASS_CCC34: ::libc::c_uint = 34;
pub const HB_UNICODE_COMBINING_CLASS_CCC35: ::libc::c_uint = 35;
pub const HB_UNICODE_COMBINING_CLASS_CCC36: ::libc::c_uint = 36;
pub const HB_UNICODE_COMBINING_CLASS_CCC84: ::libc::c_uint = 84;
pub const HB_UNICODE_COMBINING_CLASS_CCC91: ::libc::c_uint = 91;
pub const HB_UNICODE_COMBINING_CLASS_CCC103: ::libc::c_uint = 103;
pub const HB_UNICODE_COMBINING_CLASS_CCC107: ::libc::c_uint = 107;
pub const HB_UNICODE_COMBINING_CLASS_CCC118: ::libc::c_uint = 118;
pub const HB_UNICODE_COMBINING_CLASS_CCC122: ::libc::c_uint = 122;
pub const HB_UNICODE_COMBINING_CLASS_CCC129: ::libc::c_uint = 129;
pub const HB_UNICODE_COMBINING_CLASS_CCC130: ::libc::c_uint = 130;
pub const HB_UNICODE_COMBINING_CLASS_CCC133: ::libc::c_uint = 132;
pub const HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT: ::libc::c_uint =
    200;
pub const HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW: ::libc::c_uint = 202;
pub const HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE: ::libc::c_uint = 214;
pub const HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT: ::libc::c_uint =
    216;
pub const HB_UNICODE_COMBINING_CLASS_BELOW_LEFT: ::libc::c_uint = 218;
pub const HB_UNICODE_COMBINING_CLASS_BELOW: ::libc::c_uint = 220;
pub const HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT: ::libc::c_uint = 222;
pub const HB_UNICODE_COMBINING_CLASS_LEFT: ::libc::c_uint = 224;
pub const HB_UNICODE_COMBINING_CLASS_RIGHT: ::libc::c_uint = 226;
pub const HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT: ::libc::c_uint = 228;
pub const HB_UNICODE_COMBINING_CLASS_ABOVE: ::libc::c_uint = 230;
pub const HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT: ::libc::c_uint = 232;
pub const HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW: ::libc::c_uint = 233;
pub const HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE: ::libc::c_uint = 234;
pub const HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT: ::libc::c_uint = 240;
pub const HB_UNICODE_COMBINING_CLASS_INVALID: ::libc::c_uint = 255;
pub type hb_unicode_combining_class_t = Enum_Unnamed5;
pub enum Struct_hb_unicode_funcs_t { }
pub type hb_unicode_funcs_t = Struct_hb_unicode_funcs_t;
pub type hb_unicode_combining_class_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        unicode: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_unicode_combining_class_t>;
pub type hb_unicode_eastasian_width_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        unicode: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> ::libc::c_uint>;
pub type hb_unicode_general_category_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        unicode: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_unicode_general_category_t>;
pub type hb_unicode_mirroring_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        unicode: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_codepoint_t>;
pub type hb_unicode_script_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        unicode: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_script_t>;
pub type hb_unicode_compose_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        a: hb_codepoint_t, b: hb_codepoint_t,
                                        ab: *mut hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_unicode_decompose_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        ab: hb_codepoint_t,
                                        a: *mut hb_codepoint_t,
                                        b: *mut hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_unicode_decompose_compatibility_func_t =
    ::std::option::Option<extern "C" fn(ufuncs: *mut hb_unicode_funcs_t,
                                        u: hb_codepoint_t,
                                        decomposed: *mut hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> ::libc::c_uint>;
pub enum Struct_hb_face_t { }
pub type hb_face_t = Struct_hb_face_t;
pub type hb_reference_table_func_t =
    ::std::option::Option<extern "C" fn(face: *mut hb_face_t, tag: hb_tag_t,
                                        user_data: *mut ::libc::c_void)
                              -> *mut hb_blob_t>;
pub enum Struct_hb_font_t { }
pub type hb_font_t = Struct_hb_font_t;
pub enum Struct_hb_font_funcs_t { }
pub type hb_font_funcs_t = Struct_hb_font_funcs_t;
#[repr(C)]
#[derive(Copy)]
pub struct Struct_hb_glyph_extents_t {
    pub x_bearing: hb_position_t,
    pub y_bearing: hb_position_t,
    pub width: hb_position_t,
    pub height: hb_position_t,
}
impl ::std::clone::Clone for Struct_hb_glyph_extents_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Struct_hb_glyph_extents_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_glyph_extents_t = Struct_hb_glyph_extents_t;
pub type hb_font_get_glyph_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        unicode: hb_codepoint_t,
                                        variation_selector: hb_codepoint_t,
                                        glyph: *mut hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_font_get_glyph_advance_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        glyph: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_position_t>;
pub type hb_font_get_glyph_h_advance_func_t =
    hb_font_get_glyph_advance_func_t;
pub type hb_font_get_glyph_v_advance_func_t =
    hb_font_get_glyph_advance_func_t;
pub type hb_font_get_glyph_origin_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        glyph: hb_codepoint_t,
                                        x: *mut hb_position_t,
                                        y: *mut hb_position_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_font_get_glyph_h_origin_func_t = hb_font_get_glyph_origin_func_t;
pub type hb_font_get_glyph_v_origin_func_t = hb_font_get_glyph_origin_func_t;
pub type hb_font_get_glyph_kerning_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        first_glyph: hb_codepoint_t,
                                        second_glyph: hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_position_t>;
pub type hb_font_get_glyph_h_kerning_func_t =
    hb_font_get_glyph_kerning_func_t;
pub type hb_font_get_glyph_v_kerning_func_t =
    hb_font_get_glyph_kerning_func_t;
pub type hb_font_get_glyph_extents_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        glyph: hb_codepoint_t,
                                        extents: *mut hb_glyph_extents_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_font_get_glyph_contour_point_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        glyph: hb_codepoint_t,
                                        point_index: ::libc::c_uint,
                                        x: *mut hb_position_t,
                                        y: *mut hb_position_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_font_get_glyph_name_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        glyph: hb_codepoint_t,
                                        name: *mut ::libc::c_char,
                                        size: ::libc::c_uint,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
pub type hb_font_get_glyph_from_name_func_t =
    ::std::option::Option<extern "C" fn(font: *mut hb_font_t,
                                        font_data: *mut ::libc::c_void,
                                        name: *const ::libc::c_char,
                                        len: ::libc::c_int,
                                        glyph: *mut hb_codepoint_t,
                                        user_data: *mut ::libc::c_void)
                              -> hb_bool_t>;
#[repr(C)]
#[derive(Copy)]
pub struct Struct_hb_glyph_info_t {
    pub codepoint: hb_codepoint_t,
    pub mask: hb_mask_t,
    pub cluster: uint32_t,
    pub var1: hb_var_int_t,
    pub var2: hb_var_int_t,
}
impl ::std::clone::Clone for Struct_hb_glyph_info_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Struct_hb_glyph_info_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_glyph_info_t = Struct_hb_glyph_info_t;
#[repr(C)]
#[derive(Copy)]
pub struct Struct_hb_glyph_position_t {
    pub x_advance: hb_position_t,
    pub y_advance: hb_position_t,
    pub x_offset: hb_position_t,
    pub y_offset: hb_position_t,
    pub var: hb_var_int_t,
}
impl ::std::clone::Clone for Struct_hb_glyph_position_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Struct_hb_glyph_position_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_glyph_position_t = Struct_hb_glyph_position_t;
#[repr(C)]
#[derive(Copy)]
pub struct Struct_hb_segment_properties_t {
    pub direction: hb_direction_t,
    pub script: hb_script_t,
    pub language: hb_language_t,
    pub reserved1: *mut ::libc::c_void,
    pub reserved2: *mut ::libc::c_void,
}
impl ::std::clone::Clone for Struct_hb_segment_properties_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Struct_hb_segment_properties_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_segment_properties_t = Struct_hb_segment_properties_t;
pub enum Struct_hb_buffer_t { }
pub type hb_buffer_t = Struct_hb_buffer_t;
pub type Enum_Unnamed6 = ::libc::c_uint;
pub const HB_BUFFER_CONTENT_TYPE_INVALID: ::libc::c_uint = 0;
pub const HB_BUFFER_CONTENT_TYPE_UNICODE: ::libc::c_uint = 1;
pub const HB_BUFFER_CONTENT_TYPE_GLYPHS: ::libc::c_uint = 2;
pub type hb_buffer_content_type_t = Enum_Unnamed6;
pub type Enum_Unnamed7 = ::libc::c_uint;
pub const HB_BUFFER_FLAG_DEFAULT: ::libc::c_uint = 0;
pub const HB_BUFFER_FLAG_BOT: ::libc::c_uint = 1;
pub const HB_BUFFER_FLAG_EOT: ::libc::c_uint = 2;
pub const HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES: ::libc::c_uint = 4;
pub type hb_buffer_flags_t = Enum_Unnamed7;
pub type Enum_Unnamed8 = ::libc::c_uint;
pub const HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES: ::libc::c_uint = 0;
pub const HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS: ::libc::c_uint = 1;
pub const HB_BUFFER_CLUSTER_LEVEL_CHARACTERS: ::libc::c_uint = 2;
pub const HB_BUFFER_CLUSTER_LEVEL_DEFAULT: ::libc::c_uint = 0;
pub type hb_buffer_cluster_level_t = Enum_Unnamed8;
pub type Enum_Unnamed9 = ::libc::c_uint;
pub const HB_BUFFER_SERIALIZE_FLAG_DEFAULT: ::libc::c_uint = 0;
pub const HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS: ::libc::c_uint = 1;
pub const HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS: ::libc::c_uint = 2;
pub const HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES: ::libc::c_uint = 4;
pub const HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS: ::libc::c_uint = 8;
pub type hb_buffer_serialize_flags_t = Enum_Unnamed9;
pub type Enum_Unnamed10 = ::libc::c_uint;
pub const HB_BUFFER_SERIALIZE_FORMAT_TEXT: ::libc::c_uint = 1413830740;
pub const HB_BUFFER_SERIALIZE_FORMAT_JSON: ::libc::c_uint = 1246973774;
pub const HB_BUFFER_SERIALIZE_FORMAT_INVALID: ::libc::c_uint = 0;
pub type hb_buffer_serialize_format_t = Enum_Unnamed10;
pub enum Struct_hb_set_t { }
pub type hb_set_t = Struct_hb_set_t;
#[repr(C)]
#[derive(Copy)]
pub struct Struct_hb_feature_t {
    pub tag: hb_tag_t,
    pub value: uint32_t,
    pub start: ::libc::c_uint,
    pub end: ::libc::c_uint,
}
impl ::std::clone::Clone for Struct_hb_feature_t {
    fn clone(&self) -> Self { *self }
}
impl ::std::default::Default for Struct_hb_feature_t {
    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
}
pub type hb_feature_t = Struct_hb_feature_t;
pub enum Struct_hb_shape_plan_t { }
pub type hb_shape_plan_t = Struct_hb_shape_plan_t;
extern "C" {
    pub fn hb_tag_from_string(str: *const ::libc::c_char, len: ::libc::c_int)
     -> hb_tag_t;
    pub fn hb_tag_to_string(tag: hb_tag_t, buf: *mut ::libc::c_char) -> ();
    pub fn hb_direction_from_string(str: *const ::libc::c_char,
                                    len: ::libc::c_int) -> hb_direction_t;
    pub fn hb_direction_to_string(direction: hb_direction_t)
     -> *const ::libc::c_char;
    pub fn hb_language_from_string(str: *const ::libc::c_char,
                                   len: ::libc::c_int) -> hb_language_t;
    pub fn hb_language_to_string(language: hb_language_t)
     -> *const ::libc::c_char;
    pub fn hb_language_get_default() -> hb_language_t;
    pub fn hb_script_from_iso15924_tag(tag: hb_tag_t) -> hb_script_t;
    pub fn hb_script_from_string(s: *const ::libc::c_char, len: ::libc::c_int)
     -> hb_script_t;
    pub fn hb_script_to_iso15924_tag(script: hb_script_t) -> hb_tag_t;
    pub fn hb_script_get_horizontal_direction(script: hb_script_t)
     -> hb_direction_t;
    pub fn hb_blob_create(data: *const ::libc::c_char, length: ::libc::c_uint,
                          mode: hb_memory_mode_t,
                          user_data: *mut ::libc::c_void,
                          destroy: hb_destroy_func_t) -> *mut hb_blob_t;
    pub fn hb_blob_create_sub_blob(parent: *mut hb_blob_t,
                                   offset: ::libc::c_uint,
                                   length: ::libc::c_uint) -> *mut hb_blob_t;
    pub fn hb_blob_get_empty() -> *mut hb_blob_t;
    pub fn hb_blob_reference(blob: *mut hb_blob_t) -> *mut hb_blob_t;
    pub fn hb_blob_destroy(blob: *mut hb_blob_t) -> ();
    pub fn hb_blob_set_user_data(blob: *mut hb_blob_t,
                                 key: *mut hb_user_data_key_t,
                                 data: *mut ::libc::c_void,
                                 destroy: hb_destroy_func_t,
                                 replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_blob_get_user_data(blob: *mut hb_blob_t,
                                 key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_blob_make_immutable(blob: *mut hb_blob_t) -> ();
    pub fn hb_blob_is_immutable(blob: *mut hb_blob_t) -> hb_bool_t;
    pub fn hb_blob_get_length(blob: *mut hb_blob_t) -> ::libc::c_uint;
    pub fn hb_blob_get_data(blob: *mut hb_blob_t, length: *mut ::libc::c_uint)
     -> *const ::libc::c_char;
    pub fn hb_blob_get_data_writable(blob: *mut hb_blob_t,
                                     length: *mut ::libc::c_uint)
     -> *mut ::libc::c_char;
    pub fn hb_unicode_funcs_get_default() -> *mut hb_unicode_funcs_t;
    pub fn hb_unicode_funcs_create(parent: *mut hb_unicode_funcs_t)
     -> *mut hb_unicode_funcs_t;
    pub fn hb_unicode_funcs_get_empty() -> *mut hb_unicode_funcs_t;
    pub fn hb_unicode_funcs_reference(ufuncs: *mut hb_unicode_funcs_t)
     -> *mut hb_unicode_funcs_t;
    pub fn hb_unicode_funcs_destroy(ufuncs: *mut hb_unicode_funcs_t) -> ();
    pub fn hb_unicode_funcs_set_user_data(ufuncs: *mut hb_unicode_funcs_t,
                                          key: *mut hb_user_data_key_t,
                                          data: *mut ::libc::c_void,
                                          destroy: hb_destroy_func_t,
                                          replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_unicode_funcs_get_user_data(ufuncs: *mut hb_unicode_funcs_t,
                                          key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_unicode_funcs_make_immutable(ufuncs: *mut hb_unicode_funcs_t)
     -> ();
    pub fn hb_unicode_funcs_is_immutable(ufuncs: *mut hb_unicode_funcs_t)
     -> hb_bool_t;
    pub fn hb_unicode_funcs_get_parent(ufuncs: *mut hb_unicode_funcs_t)
     -> *mut hb_unicode_funcs_t;
    pub fn hb_unicode_funcs_set_combining_class_func(ufuncs:
                                                         *mut hb_unicode_funcs_t,
                                                     func:
                                                         hb_unicode_combining_class_func_t,
                                                     user_data:
                                                         *mut ::libc::c_void,
                                                     destroy:
                                                         hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_funcs_set_eastasian_width_func(ufuncs:
                                                         *mut hb_unicode_funcs_t,
                                                     func:
                                                         hb_unicode_eastasian_width_func_t,
                                                     user_data:
                                                         *mut ::libc::c_void,
                                                     destroy:
                                                         hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_funcs_set_general_category_func(ufuncs:
                                                          *mut hb_unicode_funcs_t,
                                                      func:
                                                          hb_unicode_general_category_func_t,
                                                      user_data:
                                                          *mut ::libc::c_void,
                                                      destroy:
                                                          hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_funcs_set_mirroring_func(ufuncs:
                                                   *mut hb_unicode_funcs_t,
                                               func:
                                                   hb_unicode_mirroring_func_t,
                                               user_data: *mut ::libc::c_void,
                                               destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_funcs_set_script_func(ufuncs: *mut hb_unicode_funcs_t,
                                            func: hb_unicode_script_func_t,
                                            user_data: *mut ::libc::c_void,
                                            destroy: hb_destroy_func_t) -> ();
    pub fn hb_unicode_funcs_set_compose_func(ufuncs: *mut hb_unicode_funcs_t,
                                             func: hb_unicode_compose_func_t,
                                             user_data: *mut ::libc::c_void,
                                             destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_funcs_set_decompose_func(ufuncs:
                                                   *mut hb_unicode_funcs_t,
                                               func:
                                                   hb_unicode_decompose_func_t,
                                               user_data: *mut ::libc::c_void,
                                               destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_funcs_set_decompose_compatibility_func(ufuncs:
                                                                 *mut hb_unicode_funcs_t,
                                                             func:
                                                                 hb_unicode_decompose_compatibility_func_t,
                                                             user_data:
                                                                 *mut ::libc::c_void,
                                                             destroy:
                                                                 hb_destroy_func_t)
     -> ();
    pub fn hb_unicode_combining_class(ufuncs: *mut hb_unicode_funcs_t,
                                      unicode: hb_codepoint_t)
     -> hb_unicode_combining_class_t;
    pub fn hb_unicode_eastasian_width(ufuncs: *mut hb_unicode_funcs_t,
                                      unicode: hb_codepoint_t)
     -> ::libc::c_uint;
    pub fn hb_unicode_general_category(ufuncs: *mut hb_unicode_funcs_t,
                                       unicode: hb_codepoint_t)
     -> hb_unicode_general_category_t;
    pub fn hb_unicode_mirroring(ufuncs: *mut hb_unicode_funcs_t,
                                unicode: hb_codepoint_t) -> hb_codepoint_t;
    pub fn hb_unicode_script(ufuncs: *mut hb_unicode_funcs_t,
                             unicode: hb_codepoint_t) -> hb_script_t;
    pub fn hb_unicode_compose(ufuncs: *mut hb_unicode_funcs_t,
                              a: hb_codepoint_t, b: hb_codepoint_t,
                              ab: *mut hb_codepoint_t) -> hb_bool_t;
    pub fn hb_unicode_decompose(ufuncs: *mut hb_unicode_funcs_t,
                                ab: hb_codepoint_t, a: *mut hb_codepoint_t,
                                b: *mut hb_codepoint_t) -> hb_bool_t;
    pub fn hb_unicode_decompose_compatibility(ufuncs: *mut hb_unicode_funcs_t,
                                              u: hb_codepoint_t,
                                              decomposed: *mut hb_codepoint_t)
     -> ::libc::c_uint;
    pub fn hb_face_create(blob: *mut hb_blob_t, index: ::libc::c_uint)
     -> *mut hb_face_t;
    pub fn hb_face_create_for_tables(reference_table_func:
                                         hb_reference_table_func_t,
                                     user_data: *mut ::libc::c_void,
                                     destroy: hb_destroy_func_t)
     -> *mut hb_face_t;
    pub fn hb_face_get_empty() -> *mut hb_face_t;
    pub fn hb_face_reference(face: *mut hb_face_t) -> *mut hb_face_t;
    pub fn hb_face_destroy(face: *mut hb_face_t) -> ();
    pub fn hb_face_set_user_data(face: *mut hb_face_t,
                                 key: *mut hb_user_data_key_t,
                                 data: *mut ::libc::c_void,
                                 destroy: hb_destroy_func_t,
                                 replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_face_get_user_data(face: *mut hb_face_t,
                                 key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_face_make_immutable(face: *mut hb_face_t) -> ();
    pub fn hb_face_is_immutable(face: *mut hb_face_t) -> hb_bool_t;
    pub fn hb_face_reference_table(face: *mut hb_face_t, tag: hb_tag_t)
     -> *mut hb_blob_t;
    pub fn hb_face_reference_blob(face: *mut hb_face_t) -> *mut hb_blob_t;
    pub fn hb_face_set_index(face: *mut hb_face_t, index: ::libc::c_uint)
     -> ();
    pub fn hb_face_get_index(face: *mut hb_face_t) -> ::libc::c_uint;
    pub fn hb_face_set_upem(face: *mut hb_face_t, upem: ::libc::c_uint) -> ();
    pub fn hb_face_get_upem(face: *mut hb_face_t) -> ::libc::c_uint;
    pub fn hb_face_set_glyph_count(face: *mut hb_face_t,
                                   glyph_count: ::libc::c_uint) -> ();
    pub fn hb_face_get_glyph_count(face: *mut hb_face_t) -> ::libc::c_uint;
    pub fn hb_font_funcs_create() -> *mut hb_font_funcs_t;
    pub fn hb_font_funcs_get_empty() -> *mut hb_font_funcs_t;
    pub fn hb_font_funcs_reference(ffuncs: *mut hb_font_funcs_t)
     -> *mut hb_font_funcs_t;
    pub fn hb_font_funcs_destroy(ffuncs: *mut hb_font_funcs_t) -> ();
    pub fn hb_font_funcs_set_user_data(ffuncs: *mut hb_font_funcs_t,
                                       key: *mut hb_user_data_key_t,
                                       data: *mut ::libc::c_void,
                                       destroy: hb_destroy_func_t,
                                       replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_font_funcs_get_user_data(ffuncs: *mut hb_font_funcs_t,
                                       key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_font_funcs_make_immutable(ffuncs: *mut hb_font_funcs_t) -> ();
    pub fn hb_font_funcs_is_immutable(ffuncs: *mut hb_font_funcs_t)
     -> hb_bool_t;
    pub fn hb_font_funcs_set_glyph_func(ffuncs: *mut hb_font_funcs_t,
                                        func: hb_font_get_glyph_func_t,
                                        user_data: *mut ::libc::c_void,
                                        destroy: hb_destroy_func_t) -> ();
    pub fn hb_font_funcs_set_glyph_h_advance_func(ffuncs:
                                                      *mut hb_font_funcs_t,
                                                  func:
                                                      hb_font_get_glyph_h_advance_func_t,
                                                  user_data:
                                                      *mut ::libc::c_void,
                                                  destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_v_advance_func(ffuncs:
                                                      *mut hb_font_funcs_t,
                                                  func:
                                                      hb_font_get_glyph_v_advance_func_t,
                                                  user_data:
                                                      *mut ::libc::c_void,
                                                  destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_h_origin_func(ffuncs: *mut hb_font_funcs_t,
                                                 func:
                                                     hb_font_get_glyph_h_origin_func_t,
                                                 user_data:
                                                     *mut ::libc::c_void,
                                                 destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_v_origin_func(ffuncs: *mut hb_font_funcs_t,
                                                 func:
                                                     hb_font_get_glyph_v_origin_func_t,
                                                 user_data:
                                                     *mut ::libc::c_void,
                                                 destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_h_kerning_func(ffuncs:
                                                      *mut hb_font_funcs_t,
                                                  func:
                                                      hb_font_get_glyph_h_kerning_func_t,
                                                  user_data:
                                                      *mut ::libc::c_void,
                                                  destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_v_kerning_func(ffuncs:
                                                      *mut hb_font_funcs_t,
                                                  func:
                                                      hb_font_get_glyph_v_kerning_func_t,
                                                  user_data:
                                                      *mut ::libc::c_void,
                                                  destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_extents_func(ffuncs: *mut hb_font_funcs_t,
                                                func:
                                                    hb_font_get_glyph_extents_func_t,
                                                user_data:
                                                    *mut ::libc::c_void,
                                                destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_contour_point_func(ffuncs:
                                                          *mut hb_font_funcs_t,
                                                      func:
                                                          hb_font_get_glyph_contour_point_func_t,
                                                      user_data:
                                                          *mut ::libc::c_void,
                                                      destroy:
                                                          hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_name_func(ffuncs: *mut hb_font_funcs_t,
                                             func:
                                                 hb_font_get_glyph_name_func_t,
                                             user_data: *mut ::libc::c_void,
                                             destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_funcs_set_glyph_from_name_func(ffuncs:
                                                      *mut hb_font_funcs_t,
                                                  func:
                                                      hb_font_get_glyph_from_name_func_t,
                                                  user_data:
                                                      *mut ::libc::c_void,
                                                  destroy: hb_destroy_func_t)
     -> ();
    pub fn hb_font_get_glyph(font: *mut hb_font_t, unicode: hb_codepoint_t,
                             variation_selector: hb_codepoint_t,
                             glyph: *mut hb_codepoint_t) -> hb_bool_t;
    pub fn hb_font_get_glyph_h_advance(font: *mut hb_font_t,
                                       glyph: hb_codepoint_t)
     -> hb_position_t;
    pub fn hb_font_get_glyph_v_advance(font: *mut hb_font_t,
                                       glyph: hb_codepoint_t)
     -> hb_position_t;
    pub fn hb_font_get_glyph_h_origin(font: *mut hb_font_t,
                                      glyph: hb_codepoint_t,
                                      x: *mut hb_position_t,
                                      y: *mut hb_position_t) -> hb_bool_t;
    pub fn hb_font_get_glyph_v_origin(font: *mut hb_font_t,
                                      glyph: hb_codepoint_t,
                                      x: *mut hb_position_t,
                                      y: *mut hb_position_t) -> hb_bool_t;
    pub fn hb_font_get_glyph_h_kerning(font: *mut hb_font_t,
                                       left_glyph: hb_codepoint_t,
                                       right_glyph: hb_codepoint_t)
     -> hb_position_t;
    pub fn hb_font_get_glyph_v_kerning(font: *mut hb_font_t,
                                       top_glyph: hb_codepoint_t,
                                       bottom_glyph: hb_codepoint_t)
     -> hb_position_t;
    pub fn hb_font_get_glyph_extents(font: *mut hb_font_t,
                                     glyph: hb_codepoint_t,
                                     extents: *mut hb_glyph_extents_t)
     -> hb_bool_t;
    pub fn hb_font_get_glyph_contour_point(font: *mut hb_font_t,
                                           glyph: hb_codepoint_t,
                                           point_index: ::libc::c_uint,
                                           x: *mut hb_position_t,
                                           y: *mut hb_position_t)
     -> hb_bool_t;
    pub fn hb_font_get_glyph_name(font: *mut hb_font_t, glyph: hb_codepoint_t,
                                  name: *mut ::libc::c_char,
                                  size: ::libc::c_uint) -> hb_bool_t;
    pub fn hb_font_get_glyph_from_name(font: *mut hb_font_t,
                                       name: *const ::libc::c_char,
                                       len: ::libc::c_int,
                                       glyph: *mut hb_codepoint_t)
     -> hb_bool_t;
    pub fn hb_font_get_glyph_advance_for_direction(font: *mut hb_font_t,
                                                   glyph: hb_codepoint_t,
                                                   direction: hb_direction_t,
                                                   x: *mut hb_position_t,
                                                   y: *mut hb_position_t)
     -> ();
    pub fn hb_font_get_glyph_origin_for_direction(font: *mut hb_font_t,
                                                  glyph: hb_codepoint_t,
                                                  direction: hb_direction_t,
                                                  x: *mut hb_position_t,
                                                  y: *mut hb_position_t)
     -> ();
    pub fn hb_font_add_glyph_origin_for_direction(font: *mut hb_font_t,
                                                  glyph: hb_codepoint_t,
                                                  direction: hb_direction_t,
                                                  x: *mut hb_position_t,
                                                  y: *mut hb_position_t)
     -> ();
    pub fn hb_font_subtract_glyph_origin_for_direction(font: *mut hb_font_t,
                                                       glyph: hb_codepoint_t,
                                                       direction:
                                                           hb_direction_t,
                                                       x: *mut hb_position_t,
                                                       y: *mut hb_position_t)
     -> ();
    pub fn hb_font_get_glyph_kerning_for_direction(font: *mut hb_font_t,
                                                   first_glyph:
                                                       hb_codepoint_t,
                                                   second_glyph:
                                                       hb_codepoint_t,
                                                   direction: hb_direction_t,
                                                   x: *mut hb_position_t,
                                                   y: *mut hb_position_t)
     -> ();
    pub fn hb_font_get_glyph_extents_for_origin(font: *mut hb_font_t,
                                                glyph: hb_codepoint_t,
                                                direction: hb_direction_t,
                                                extents:
                                                    *mut hb_glyph_extents_t)
     -> hb_bool_t;
    pub fn hb_font_get_glyph_contour_point_for_origin(font: *mut hb_font_t,
                                                      glyph: hb_codepoint_t,
                                                      point_index:
                                                          ::libc::c_uint,
                                                      direction:
                                                          hb_direction_t,
                                                      x: *mut hb_position_t,
                                                      y: *mut hb_position_t)
     -> hb_bool_t;
    pub fn hb_font_glyph_to_string(font: *mut hb_font_t,
                                   glyph: hb_codepoint_t,
                                   s: *mut ::libc::c_char,
                                   size: ::libc::c_uint) -> ();
    pub fn hb_font_glyph_from_string(font: *mut hb_font_t,
                                     s: *const ::libc::c_char,
                                     len: ::libc::c_int,
                                     glyph: *mut hb_codepoint_t) -> hb_bool_t;
    pub fn hb_font_create(face: *mut hb_face_t) -> *mut hb_font_t;

    #[cfg(any(target_os = "android", all(unix, not(target_os = "macos"))))]
    pub fn hb_ft_font_create_referenced(face: freetype_sys::FT_Face) -> *mut hb_font_t;

    pub fn hb_font_create_sub_font(parent: *mut hb_font_t) -> *mut hb_font_t;
    pub fn hb_font_get_empty() -> *mut hb_font_t;
    pub fn hb_font_reference(font: *mut hb_font_t) -> *mut hb_font_t;
    pub fn hb_font_destroy(font: *mut hb_font_t) -> ();
    pub fn hb_font_set_user_data(font: *mut hb_font_t,
                                 key: *mut hb_user_data_key_t,
                                 data: *mut ::libc::c_void,
                                 destroy: hb_destroy_func_t,
                                 replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_font_get_user_data(font: *mut hb_font_t,
                                 key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_font_make_immutable(font: *mut hb_font_t) -> ();
    pub fn hb_font_is_immutable(font: *mut hb_font_t) -> hb_bool_t;
    pub fn hb_font_get_parent(font: *mut hb_font_t) -> *mut hb_font_t;
    pub fn hb_font_get_face(font: *mut hb_font_t) -> *mut hb_face_t;
    pub fn hb_font_set_funcs(font: *mut hb_font_t,
                             klass: *mut hb_font_funcs_t,
                             font_data: *mut ::libc::c_void,
                             destroy: hb_destroy_func_t) -> ();
    pub fn hb_font_set_funcs_data(font: *mut hb_font_t,
                                  font_data: *mut ::libc::c_void,
                                  destroy: hb_destroy_func_t) -> ();
    pub fn hb_font_set_scale(font: *mut hb_font_t, x_scale: ::libc::c_int,
                             y_scale: ::libc::c_int) -> ();
    pub fn hb_font_get_scale(font: *mut hb_font_t,
                             x_scale: *mut ::libc::c_int,
                             y_scale: *mut ::libc::c_int) -> ();
    pub fn hb_font_set_ppem(font: *mut hb_font_t, x_ppem: ::libc::c_uint,
                            y_ppem: ::libc::c_uint) -> ();
    pub fn hb_font_get_ppem(font: *mut hb_font_t, x_ppem: *mut ::libc::c_uint,
                            y_ppem: *mut ::libc::c_uint) -> ();
    pub fn hb_segment_properties_equal(a: *const hb_segment_properties_t,
                                       b: *const hb_segment_properties_t)
     -> hb_bool_t;
    pub fn hb_segment_properties_hash(p: *const hb_segment_properties_t)
     -> ::libc::c_uint;
    pub fn hb_buffer_create() -> *mut hb_buffer_t;
    pub fn hb_buffer_get_empty() -> *mut hb_buffer_t;
    pub fn hb_buffer_reference(buffer: *mut hb_buffer_t) -> *mut hb_buffer_t;
    pub fn hb_buffer_destroy(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_set_user_data(buffer: *mut hb_buffer_t,
                                   key: *mut hb_user_data_key_t,
                                   data: *mut ::libc::c_void,
                                   destroy: hb_destroy_func_t,
                                   replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_buffer_get_user_data(buffer: *mut hb_buffer_t,
                                   key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_buffer_set_content_type(buffer: *mut hb_buffer_t,
                                      content_type: hb_buffer_content_type_t)
     -> ();
    pub fn hb_buffer_get_content_type(buffer: *mut hb_buffer_t)
     -> hb_buffer_content_type_t;
    pub fn hb_buffer_set_unicode_funcs(buffer: *mut hb_buffer_t,
                                       unicode_funcs: *mut hb_unicode_funcs_t)
     -> ();
    pub fn hb_buffer_get_unicode_funcs(buffer: *mut hb_buffer_t)
     -> *mut hb_unicode_funcs_t;
    pub fn hb_buffer_set_direction(buffer: *mut hb_buffer_t,
                                   direction: hb_direction_t) -> ();
    pub fn hb_buffer_get_direction(buffer: *mut hb_buffer_t)
     -> hb_direction_t;
    pub fn hb_buffer_set_script(buffer: *mut hb_buffer_t, script: hb_script_t)
     -> ();
    pub fn hb_buffer_get_script(buffer: *mut hb_buffer_t) -> hb_script_t;
    pub fn hb_buffer_set_language(buffer: *mut hb_buffer_t,
                                  language: hb_language_t) -> ();
    pub fn hb_buffer_get_language(buffer: *mut hb_buffer_t) -> hb_language_t;
    pub fn hb_buffer_set_segment_properties(buffer: *mut hb_buffer_t,
                                            props:
                                                *const hb_segment_properties_t)
     -> ();
    pub fn hb_buffer_get_segment_properties(buffer: *mut hb_buffer_t,
                                            props:
                                                *mut hb_segment_properties_t)
     -> ();
    pub fn hb_buffer_guess_segment_properties(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_set_flags(buffer: *mut hb_buffer_t,
                               flags: hb_buffer_flags_t) -> ();
    pub fn hb_buffer_get_flags(buffer: *mut hb_buffer_t) -> hb_buffer_flags_t;
    pub fn hb_buffer_set_cluster_level(buffer: *mut hb_buffer_t,
                                       cluster_level:
                                           hb_buffer_cluster_level_t) -> ();
    pub fn hb_buffer_get_cluster_level(buffer: *mut hb_buffer_t)
     -> hb_buffer_cluster_level_t;
    pub fn hb_buffer_set_replacement_codepoint(buffer: *mut hb_buffer_t,
                                               replacement: hb_codepoint_t)
     -> ();
    pub fn hb_buffer_get_replacement_codepoint(buffer: *mut hb_buffer_t)
     -> hb_codepoint_t;
    pub fn hb_buffer_reset(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_clear_contents(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_pre_allocate(buffer: *mut hb_buffer_t,
                                  size: ::libc::c_uint) -> hb_bool_t;
    pub fn hb_buffer_allocation_successful(buffer: *mut hb_buffer_t)
     -> hb_bool_t;
    pub fn hb_buffer_reverse(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_reverse_range(buffer: *mut hb_buffer_t,
                                   start: ::libc::c_uint, end: ::libc::c_uint)
     -> ();
    pub fn hb_buffer_reverse_clusters(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_add(buffer: *mut hb_buffer_t, codepoint: hb_codepoint_t,
                         cluster: ::libc::c_uint) -> ();
    pub fn hb_buffer_add_utf8(buffer: *mut hb_buffer_t,
                              text: *const ::libc::c_char,
                              text_length: ::libc::c_int,
                              item_offset: ::libc::c_uint,
                              item_length: ::libc::c_int) -> ();
    pub fn hb_buffer_add_utf16(buffer: *mut hb_buffer_t,
                               text: *const uint16_t,
                               text_length: ::libc::c_int,
                               item_offset: ::libc::c_uint,
                               item_length: ::libc::c_int) -> ();
    pub fn hb_buffer_add_utf32(buffer: *mut hb_buffer_t,
                               text: *const uint32_t,
                               text_length: ::libc::c_int,
                               item_offset: ::libc::c_uint,
                               item_length: ::libc::c_int) -> ();
    pub fn hb_buffer_add_latin1(buffer: *mut hb_buffer_t,
                                text: *const uint8_t,
                                text_length: ::libc::c_int,
                                item_offset: ::libc::c_uint,
                                item_length: ::libc::c_int) -> ();
    pub fn hb_buffer_add_codepoints(buffer: *mut hb_buffer_t,
                                    text: *const hb_codepoint_t,
                                    text_length: ::libc::c_int,
                                    item_offset: ::libc::c_uint,
                                    item_length: ::libc::c_int) -> ();
    pub fn hb_buffer_set_length(buffer: *mut hb_buffer_t,
                                length: ::libc::c_uint) -> hb_bool_t;
    pub fn hb_buffer_get_length(buffer: *mut hb_buffer_t) -> ::libc::c_uint;
    pub fn hb_buffer_get_glyph_infos(buffer: *mut hb_buffer_t,
                                     length: *mut ::libc::c_uint)
     -> *mut hb_glyph_info_t;
    pub fn hb_buffer_get_glyph_positions(buffer: *mut hb_buffer_t,
                                         length: *mut ::libc::c_uint)
     -> *mut hb_glyph_position_t;
    pub fn hb_buffer_normalize_glyphs(buffer: *mut hb_buffer_t) -> ();
    pub fn hb_buffer_serialize_format_from_string(str: *const ::libc::c_char,
                                                  len: ::libc::c_int)
     -> hb_buffer_serialize_format_t;
    pub fn hb_buffer_serialize_format_to_string(format:
                                                    hb_buffer_serialize_format_t)
     -> *const ::libc::c_char;
    pub fn hb_buffer_serialize_list_formats() -> *mut *const ::libc::c_char;
    pub fn hb_buffer_serialize_glyphs(buffer: *mut hb_buffer_t,
                                      start: ::libc::c_uint,
                                      end: ::libc::c_uint,
                                      buf: *mut ::libc::c_char,
                                      buf_size: ::libc::c_uint,
                                      buf_consumed: *mut ::libc::c_uint,
                                      font: *mut hb_font_t,
                                      format: hb_buffer_serialize_format_t,
                                      flags: hb_buffer_serialize_flags_t)
     -> ::libc::c_uint;
    pub fn hb_buffer_deserialize_glyphs(buffer: *mut hb_buffer_t,
                                        buf: *const ::libc::c_char,
                                        buf_len: ::libc::c_int,
                                        end_ptr: *mut *const ::libc::c_char,
                                        font: *mut hb_font_t,
                                        format: hb_buffer_serialize_format_t)
     -> hb_bool_t;
    pub fn hb_set_create() -> *mut hb_set_t;
    pub fn hb_set_get_empty() -> *mut hb_set_t;
    pub fn hb_set_reference(set: *mut hb_set_t) -> *mut hb_set_t;
    pub fn hb_set_destroy(set: *mut hb_set_t) -> ();
    pub fn hb_set_set_user_data(set: *mut hb_set_t,
                                key: *mut hb_user_data_key_t,
                                data: *mut ::libc::c_void,
                                destroy: hb_destroy_func_t,
                                replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_set_get_user_data(set: *mut hb_set_t,
                                key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_set_allocation_successful(set: *const hb_set_t) -> hb_bool_t;
    pub fn hb_set_clear(set: *mut hb_set_t) -> ();
    pub fn hb_set_is_empty(set: *const hb_set_t) -> hb_bool_t;
    pub fn hb_set_has(set: *const hb_set_t, codepoint: hb_codepoint_t)
     -> hb_bool_t;
    pub fn hb_set_add(set: *mut hb_set_t, codepoint: hb_codepoint_t) -> ();
    pub fn hb_set_add_range(set: *mut hb_set_t, first: hb_codepoint_t,
                            last: hb_codepoint_t) -> ();
    pub fn hb_set_del(set: *mut hb_set_t, codepoint: hb_codepoint_t) -> ();
    pub fn hb_set_del_range(set: *mut hb_set_t, first: hb_codepoint_t,
                            last: hb_codepoint_t) -> ();
    pub fn hb_set_is_equal(set: *const hb_set_t, other: *const hb_set_t)
     -> hb_bool_t;
    pub fn hb_set_set(set: *mut hb_set_t, other: *const hb_set_t) -> ();
    pub fn hb_set_union(set: *mut hb_set_t, other: *const hb_set_t) -> ();
    pub fn hb_set_intersect(set: *mut hb_set_t, other: *const hb_set_t) -> ();
    pub fn hb_set_subtract(set: *mut hb_set_t, other: *const hb_set_t) -> ();
    pub fn hb_set_symmetric_difference(set: *mut hb_set_t,
                                       other: *const hb_set_t) -> ();
    pub fn hb_set_invert(set: *mut hb_set_t) -> ();
    pub fn hb_set_get_population(set: *const hb_set_t) -> ::libc::c_uint;
    pub fn hb_set_get_min(set: *const hb_set_t) -> hb_codepoint_t;
    pub fn hb_set_get_max(set: *const hb_set_t) -> hb_codepoint_t;
    pub fn hb_set_next(set: *const hb_set_t, codepoint: *mut hb_codepoint_t)
     -> hb_bool_t;
    pub fn hb_set_next_range(set: *const hb_set_t, first: *mut hb_codepoint_t,
                             last: *mut hb_codepoint_t) -> hb_bool_t;
    pub fn hb_feature_from_string(str: *const ::libc::c_char,
                                  len: ::libc::c_int,
                                  feature: *mut hb_feature_t) -> hb_bool_t;
    pub fn hb_feature_to_string(feature: *mut hb_feature_t,
                                buf: *mut ::libc::c_char,
                                size: ::libc::c_uint) -> ();
    pub fn hb_shape(font: *mut hb_font_t, buffer: *mut hb_buffer_t,
                    features: *const hb_feature_t,
                    num_features: ::libc::c_uint) -> ();
    pub fn hb_shape_full(font: *mut hb_font_t, buffer: *mut hb_buffer_t,
                         features: *const hb_feature_t,
                         num_features: ::libc::c_uint,
                         shaper_list: *const *const ::libc::c_char)
     -> hb_bool_t;
    pub fn hb_shape_list_shapers() -> *mut *const ::libc::c_char;
    pub fn hb_shape_plan_create(face: *mut hb_face_t,
                                props: *const hb_segment_properties_t,
                                user_features: *const hb_feature_t,
                                num_user_features: ::libc::c_uint,
                                shaper_list: *const *const ::libc::c_char)
     -> *mut hb_shape_plan_t;
    pub fn hb_shape_plan_create_cached(face: *mut hb_face_t,
                                       props: *const hb_segment_properties_t,
                                       user_features: *const hb_feature_t,
                                       num_user_features: ::libc::c_uint,
                                       shaper_list:
                                           *const *const ::libc::c_char)
     -> *mut hb_shape_plan_t;
    pub fn hb_shape_plan_get_empty() -> *mut hb_shape_plan_t;
    pub fn hb_shape_plan_reference(shape_plan: *mut hb_shape_plan_t)
     -> *mut hb_shape_plan_t;
    pub fn hb_shape_plan_destroy(shape_plan: *mut hb_shape_plan_t) -> ();
    pub fn hb_shape_plan_set_user_data(shape_plan: *mut hb_shape_plan_t,
                                       key: *mut hb_user_data_key_t,
                                       data: *mut ::libc::c_void,
                                       destroy: hb_destroy_func_t,
                                       replace: hb_bool_t) -> hb_bool_t;
    pub fn hb_shape_plan_get_user_data(shape_plan: *mut hb_shape_plan_t,
                                       key: *mut hb_user_data_key_t)
     -> *mut ::libc::c_void;
    pub fn hb_shape_plan_execute(shape_plan: *mut hb_shape_plan_t,
                                 font: *mut hb_font_t,
                                 buffer: *mut hb_buffer_t,
                                 features: *const hb_feature_t,
                                 num_features: ::libc::c_uint) -> hb_bool_t;
    pub fn hb_shape_plan_get_shaper(shape_plan: *mut hb_shape_plan_t)
     -> *const ::libc::c_char;
    pub fn hb_version(major: *mut ::libc::c_uint, minor: *mut ::libc::c_uint,
                      micro: *mut ::libc::c_uint) -> ();
    pub fn hb_version_string() -> *const ::libc::c_char;
    pub fn hb_version_atleast(major: ::libc::c_uint, minor: ::libc::c_uint,
                              micro: ::libc::c_uint) -> hb_bool_t;
}