/* * Copyright 2013 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "SkOTTable_name.h" #include "SkEndian.h" #include "SkStringUtils.h" #include "SkTSearch.h" #include "SkTemplates.h" #include "SkUtils.h" static SkUnichar next_unichar_UTF16BE(const uint8_t** srcPtr, size_t* length) { SkASSERT(srcPtr && *srcPtr && length); SkASSERT(*length > 0); uint16_t leading; if (*length < sizeof(leading)) { *length = 0; return 0xFFFD; } memcpy(&leading, *srcPtr, sizeof(leading)); *srcPtr += sizeof(leading); *length -= sizeof(leading); SkUnichar c = SkEndian_SwapBE16(leading); if (SkUTF16_IsTrailingSurrogate(c)) { return 0xFFFD; } if (SkUTF16_IsLeadingSurrogate(c)) { uint16_t trailing; if (*length < sizeof(trailing)) { *length = 0; return 0xFFFD; } memcpy(&trailing, *srcPtr, sizeof(trailing)); SkUnichar c2 = SkEndian_SwapBE16(trailing); if (!SkUTF16_IsTrailingSurrogate(c2)) { return 0xFFFD; } *srcPtr += sizeof(trailing); *length -= sizeof(trailing); c = (c << 10) + c2 + (0x10000 - (0xD800 << 10) - 0xDC00); } return c; } static void SkString_from_UTF16BE(const uint8_t* utf16be, size_t length, SkString& utf8) { // Note that utf16be may not be 2-byte aligned. SkASSERT(utf16be != nullptr); utf8.reset(); while (length) { utf8.appendUnichar(next_unichar_UTF16BE(&utf16be, &length)); } } /** UnicodeFromMacRoman[macRomanPoint - 0x80] -> unicodeCodePoint. * Derived from http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/ROMAN.TXT . * In MacRoman the first 128 code points match ASCII code points. * This maps the second 128 MacRoman code points to unicode code points. */ static const uint16_t UnicodeFromMacRoman[0x80] = { 0x00C4, 0x00C5, 0x00C7, 0x00C9, 0x00D1, 0x00D6, 0x00DC, 0x00E1, 0x00E0, 0x00E2, 0x00E4, 0x00E3, 0x00E5, 0x00E7, 0x00E9, 0x00E8, 0x00EA, 0x00EB, 0x00ED, 0x00EC, 0x00EE, 0x00EF, 0x00F1, 0x00F3, 0x00F2, 0x00F4, 0x00F6, 0x00F5, 0x00FA, 0x00F9, 0x00FB, 0x00FC, 0x2020, 0x00B0, 0x00A2, 0x00A3, 0x00A7, 0x2022, 0x00B6, 0x00DF, 0x00AE, 0x00A9, 0x2122, 0x00B4, 0x00A8, 0x2260, 0x00C6, 0x00D8, 0x221E, 0x00B1, 0x2264, 0x2265, 0x00A5, 0x00B5, 0x2202, 0x2211, 0x220F, 0x03C0, 0x222B, 0x00AA, 0x00BA, 0x03A9, 0x00E6, 0x00F8, 0x00BF, 0x00A1, 0x00AC, 0x221A, 0x0192, 0x2248, 0x2206, 0x00AB, 0x00BB, 0x2026, 0x00A0, 0x00C0, 0x00C3, 0x00D5, 0x0152, 0x0153, 0x2013, 0x2014, 0x201C, 0x201D, 0x2018, 0x2019, 0x00F7, 0x25CA, 0x00FF, 0x0178, 0x2044, 0x20AC, 0x2039, 0x203A, 0xFB01, 0xFB02, 0x2021, 0x00B7, 0x201A, 0x201E, 0x2030, 0x00C2, 0x00CA, 0x00C1, 0x00CB, 0x00C8, 0x00CD, 0x00CE, 0x00CF, 0x00CC, 0x00D3, 0x00D4, 0xF8FF, 0x00D2, 0x00DA, 0x00DB, 0x00D9, 0x0131, 0x02C6, 0x02DC, 0x00AF, 0x02D8, 0x02D9, 0x02DA, 0x00B8, 0x02DD, 0x02DB, 0x02C7, }; static void SkStringFromMacRoman(const uint8_t* macRoman, size_t length, SkString& utf8) { utf8.reset(); for (size_t i = 0; i < length; ++i) { utf8.appendUnichar(macRoman[i] < 0x80 ? macRoman[i] : UnicodeFromMacRoman[macRoman[i] - 0x80]); } } static const struct BCP47FromLanguageId { uint16_t languageID; const char* bcp47; } /** The Mac and Windows values do not conflict, so this is currently one single table. */ BCP47FromLanguageID[] = { /** A mapping from Mac Language Designators to BCP 47 codes. * The following list was constructed more or less manually. * Apple now uses BCP 47 (post OSX10.4), so there will be no new entries. */ {0, "en"}, //English {1, "fr"}, //French {2, "de"}, //German {3, "it"}, //Italian {4, "nl"}, //Dutch {5, "sv"}, //Swedish {6, "es"}, //Spanish {7, "da"}, //Danish {8, "pt"}, //Portuguese {9, "nb"}, //Norwegian {10, "he"}, //Hebrew {11, "ja"}, //Japanese {12, "ar"}, //Arabic {13, "fi"}, //Finnish {14, "el"}, //Greek {15, "is"}, //Icelandic {16, "mt"}, //Maltese {17, "tr"}, //Turkish {18, "hr"}, //Croatian {19, "zh-Hant"}, //Chinese (Traditional) {20, "ur"}, //Urdu {21, "hi"}, //Hindi {22, "th"}, //Thai {23, "ko"}, //Korean {24, "lt"}, //Lithuanian {25, "pl"}, //Polish {26, "hu"}, //Hungarian {27, "et"}, //Estonian {28, "lv"}, //Latvian {29, "se"}, //Sami {30, "fo"}, //Faroese {31, "fa"}, //Farsi (Persian) {32, "ru"}, //Russian {33, "zh-Hans"}, //Chinese (Simplified) {34, "nl"}, //Dutch {35, "ga"}, //Irish(Gaelic) {36, "sq"}, //Albanian {37, "ro"}, //Romanian {38, "cs"}, //Czech {39, "sk"}, //Slovak {40, "sl"}, //Slovenian {41, "yi"}, //Yiddish {42, "sr"}, //Serbian {43, "mk"}, //Macedonian {44, "bg"}, //Bulgarian {45, "uk"}, //Ukrainian {46, "be"}, //Byelorussian {47, "uz"}, //Uzbek {48, "kk"}, //Kazakh {49, "az-Cyrl"}, //Azerbaijani (Cyrillic) {50, "az-Arab"}, //Azerbaijani (Arabic) {51, "hy"}, //Armenian {52, "ka"}, //Georgian {53, "mo"}, //Moldavian {54, "ky"}, //Kirghiz {55, "tg"}, //Tajiki {56, "tk"}, //Turkmen {57, "mn-Mong"}, //Mongolian (Traditional) {58, "mn-Cyrl"}, //Mongolian (Cyrillic) {59, "ps"}, //Pashto {60, "ku"}, //Kurdish {61, "ks"}, //Kashmiri {62, "sd"}, //Sindhi {63, "bo"}, //Tibetan {64, "ne"}, //Nepali {65, "sa"}, //Sanskrit {66, "mr"}, //Marathi {67, "bn"}, //Bengali {68, "as"}, //Assamese {69, "gu"}, //Gujarati {70, "pa"}, //Punjabi {71, "or"}, //Oriya {72, "ml"}, //Malayalam {73, "kn"}, //Kannada {74, "ta"}, //Tamil {75, "te"}, //Telugu {76, "si"}, //Sinhalese {77, "my"}, //Burmese {78, "km"}, //Khmer {79, "lo"}, //Lao {80, "vi"}, //Vietnamese {81, "id"}, //Indonesian {82, "tl"}, //Tagalog {83, "ms-Latn"}, //Malay (Roman) {84, "ms-Arab"}, //Malay (Arabic) {85, "am"}, //Amharic {86, "ti"}, //Tigrinya {87, "om"}, //Oromo {88, "so"}, //Somali {89, "sw"}, //Swahili {90, "rw"}, //Kinyarwanda/Ruanda {91, "rn"}, //Rundi {92, "ny"}, //Nyanja/Chewa {93, "mg"}, //Malagasy {94, "eo"}, //Esperanto {128, "cy"}, //Welsh {129, "eu"}, //Basque {130, "ca"}, //Catalan {131, "la"}, //Latin {132, "qu"}, //Quechua {133, "gn"}, //Guarani {134, "ay"}, //Aymara {135, "tt"}, //Tatar {136, "ug"}, //Uighur {137, "dz"}, //Dzongkha {138, "jv-Latn"}, //Javanese (Roman) {139, "su-Latn"}, //Sundanese (Roman) {140, "gl"}, //Galician {141, "af"}, //Afrikaans {142, "br"}, //Breton {143, "iu"}, //Inuktitut {144, "gd"}, //Scottish (Gaelic) {145, "gv"}, //Manx (Gaelic) {146, "ga"}, //Irish (Gaelic with Lenition) {147, "to"}, //Tongan {148, "el"}, //Greek (Polytonic) Note: ISO 15924 does not have an equivalent script name. {149, "kl"}, //Greenlandic {150, "az-Latn"}, //Azerbaijani (Roman) {151, "nn"}, //Nynorsk /** A mapping from Windows LCID to BCP 47 codes. * This list is the sorted, curated output of tools/win_lcid.cpp. * Note that these are sorted by value for quick binary lookup, and not logically by lsb. * The 'bare' language ids (e.g. 0x0001 for Arabic) are ommitted * as they do not appear as valid language ids in the OpenType specification. */ { 0x0401, "ar-SA" }, //Arabic { 0x0402, "bg-BG" }, //Bulgarian { 0x0403, "ca-ES" }, //Catalan { 0x0404, "zh-TW" }, //Chinese (Traditional) { 0x0405, "cs-CZ" }, //Czech { 0x0406, "da-DK" }, //Danish { 0x0407, "de-DE" }, //German { 0x0408, "el-GR" }, //Greek { 0x0409, "en-US" }, //English { 0x040a, "es-ES_tradnl" }, //Spanish { 0x040b, "fi-FI" }, //Finnish { 0x040c, "fr-FR" }, //French { 0x040d, "he-IL" }, //Hebrew { 0x040d, "he" }, //Hebrew { 0x040e, "hu-HU" }, //Hungarian { 0x040e, "hu" }, //Hungarian { 0x040f, "is-IS" }, //Icelandic { 0x0410, "it-IT" }, //Italian { 0x0411, "ja-JP" }, //Japanese { 0x0412, "ko-KR" }, //Korean { 0x0413, "nl-NL" }, //Dutch { 0x0414, "nb-NO" }, //Norwegian (Bokmål) { 0x0415, "pl-PL" }, //Polish { 0x0416, "pt-BR" }, //Portuguese { 0x0417, "rm-CH" }, //Romansh { 0x0418, "ro-RO" }, //Romanian { 0x0419, "ru-RU" }, //Russian { 0x041a, "hr-HR" }, //Croatian { 0x041b, "sk-SK" }, //Slovak { 0x041c, "sq-AL" }, //Albanian { 0x041d, "sv-SE" }, //Swedish { 0x041e, "th-TH" }, //Thai { 0x041f, "tr-TR" }, //Turkish { 0x0420, "ur-PK" }, //Urdu { 0x0421, "id-ID" }, //Indonesian { 0x0422, "uk-UA" }, //Ukrainian { 0x0423, "be-BY" }, //Belarusian { 0x0424, "sl-SI" }, //Slovenian { 0x0425, "et-EE" }, //Estonian { 0x0426, "lv-LV" }, //Latvian { 0x0427, "lt-LT" }, //Lithuanian { 0x0428, "tg-Cyrl-TJ" }, //Tajik (Cyrillic) { 0x0429, "fa-IR" }, //Persian { 0x042a, "vi-VN" }, //Vietnamese { 0x042b, "hy-AM" }, //Armenian { 0x042c, "az-Latn-AZ" }, //Azeri (Latin) { 0x042d, "eu-ES" }, //Basque { 0x042e, "hsb-DE" }, //Upper Sorbian { 0x042f, "mk-MK" }, //Macedonian (FYROM) { 0x0432, "tn-ZA" }, //Setswana { 0x0434, "xh-ZA" }, //isiXhosa { 0x0435, "zu-ZA" }, //isiZulu { 0x0436, "af-ZA" }, //Afrikaans { 0x0437, "ka-GE" }, //Georgian { 0x0438, "fo-FO" }, //Faroese { 0x0439, "hi-IN" }, //Hindi { 0x043a, "mt-MT" }, //Maltese { 0x043b, "se-NO" }, //Sami (Northern) { 0x043e, "ms-MY" }, //Malay { 0x043f, "kk-KZ" }, //Kazakh { 0x0440, "ky-KG" }, //Kyrgyz { 0x0441, "sw-KE" }, //Kiswahili { 0x0442, "tk-TM" }, //Turkmen { 0x0443, "uz-Latn-UZ" }, //Uzbek (Latin) { 0x0443, "uz" }, //Uzbek { 0x0444, "tt-RU" }, //Tatar { 0x0445, "bn-IN" }, //Bengali { 0x0446, "pa-IN" }, //Punjabi { 0x0447, "gu-IN" }, //Gujarati { 0x0448, "or-IN" }, //Oriya { 0x0449, "ta-IN" }, //Tamil { 0x044a, "te-IN" }, //Telugu { 0x044b, "kn-IN" }, //Kannada { 0x044c, "ml-IN" }, //Malayalam { 0x044d, "as-IN" }, //Assamese { 0x044e, "mr-IN" }, //Marathi { 0x044f, "sa-IN" }, //Sanskrit { 0x0450, "mn-Cyrl" }, //Mongolian (Cyrillic) { 0x0451, "bo-CN" }, //Tibetan { 0x0452, "cy-GB" }, //Welsh { 0x0453, "km-KH" }, //Khmer { 0x0454, "lo-LA" }, //Lao { 0x0456, "gl-ES" }, //Galician { 0x0457, "kok-IN" }, //Konkani { 0x045a, "syr-SY" }, //Syriac { 0x045b, "si-LK" }, //Sinhala { 0x045d, "iu-Cans-CA" }, //Inuktitut (Syllabics) { 0x045e, "am-ET" }, //Amharic { 0x0461, "ne-NP" }, //Nepali { 0x0462, "fy-NL" }, //Frisian { 0x0463, "ps-AF" }, //Pashto { 0x0464, "fil-PH" }, //Filipino { 0x0465, "dv-MV" }, //Divehi { 0x0468, "ha-Latn-NG" }, //Hausa (Latin) { 0x046a, "yo-NG" }, //Yoruba { 0x046b, "quz-BO" }, //Quechua { 0x046c, "nso-ZA" }, //Sesotho sa Leboa { 0x046d, "ba-RU" }, //Bashkir { 0x046e, "lb-LU" }, //Luxembourgish { 0x046f, "kl-GL" }, //Greenlandic { 0x0470, "ig-NG" }, //Igbo { 0x0478, "ii-CN" }, //Yi { 0x047a, "arn-CL" }, //Mapudungun { 0x047c, "moh-CA" }, //Mohawk { 0x047e, "br-FR" }, //Breton { 0x0480, "ug-CN" }, //Uyghur { 0x0481, "mi-NZ" }, //Maori { 0x0482, "oc-FR" }, //Occitan { 0x0483, "co-FR" }, //Corsican { 0x0484, "gsw-FR" }, //Alsatian { 0x0485, "sah-RU" }, //Yakut { 0x0486, "qut-GT" }, //K'iche { 0x0487, "rw-RW" }, //Kinyarwanda { 0x0488, "wo-SN" }, //Wolof { 0x048c, "prs-AF" }, //Dari { 0x0491, "gd-GB" }, //Scottish Gaelic { 0x0801, "ar-IQ" }, //Arabic { 0x0804, "zh-Hans" }, //Chinese (Simplified) { 0x0807, "de-CH" }, //German { 0x0809, "en-GB" }, //English { 0x080a, "es-MX" }, //Spanish { 0x080c, "fr-BE" }, //French { 0x0810, "it-CH" }, //Italian { 0x0813, "nl-BE" }, //Dutch { 0x0814, "nn-NO" }, //Norwegian (Nynorsk) { 0x0816, "pt-PT" }, //Portuguese { 0x081a, "sr-Latn-CS" }, //Serbian (Latin) { 0x081d, "sv-FI" }, //Swedish { 0x082c, "az-Cyrl-AZ" }, //Azeri (Cyrillic) { 0x082e, "dsb-DE" }, //Lower Sorbian { 0x082e, "dsb" }, //Lower Sorbian { 0x083b, "se-SE" }, //Sami (Northern) { 0x083c, "ga-IE" }, //Irish { 0x083e, "ms-BN" }, //Malay { 0x0843, "uz-Cyrl-UZ" }, //Uzbek (Cyrillic) { 0x0845, "bn-BD" }, //Bengali { 0x0850, "mn-Mong-CN" }, //Mongolian (Traditional Mongolian) { 0x085d, "iu-Latn-CA" }, //Inuktitut (Latin) { 0x085f, "tzm-Latn-DZ" }, //Tamazight (Latin) { 0x086b, "quz-EC" }, //Quechua { 0x0c01, "ar-EG" }, //Arabic { 0x0c04, "zh-Hant" }, //Chinese (Traditional) { 0x0c07, "de-AT" }, //German { 0x0c09, "en-AU" }, //English { 0x0c0a, "es-ES" }, //Spanish { 0x0c0c, "fr-CA" }, //French { 0x0c1a, "sr-Cyrl-CS" }, //Serbian (Cyrillic) { 0x0c3b, "se-FI" }, //Sami (Northern) { 0x0c6b, "quz-PE" }, //Quechua { 0x1001, "ar-LY" }, //Arabic { 0x1004, "zh-SG" }, //Chinese (Simplified) { 0x1007, "de-LU" }, //German { 0x1009, "en-CA" }, //English { 0x100a, "es-GT" }, //Spanish { 0x100c, "fr-CH" }, //French { 0x101a, "hr-BA" }, //Croatian (Latin) { 0x103b, "smj-NO" }, //Sami (Lule) { 0x1401, "ar-DZ" }, //Arabic { 0x1404, "zh-MO" }, //Chinese (Traditional) { 0x1407, "de-LI" }, //German { 0x1409, "en-NZ" }, //English { 0x140a, "es-CR" }, //Spanish { 0x140c, "fr-LU" }, //French { 0x141a, "bs-Latn-BA" }, //Bosnian (Latin) { 0x141a, "bs" }, //Bosnian { 0x143b, "smj-SE" }, //Sami (Lule) { 0x143b, "smj" }, //Sami (Lule) { 0x1801, "ar-MA" }, //Arabic { 0x1809, "en-IE" }, //English { 0x180a, "es-PA" }, //Spanish { 0x180c, "fr-MC" }, //French { 0x181a, "sr-Latn-BA" }, //Serbian (Latin) { 0x183b, "sma-NO" }, //Sami (Southern) { 0x1c01, "ar-TN" }, //Arabic { 0x1c09, "en-ZA" }, //English { 0x1c0a, "es-DO" }, //Spanish { 0x1c1a, "sr-Cyrl-BA" }, //Serbian (Cyrillic) { 0x1c3b, "sma-SE" }, //Sami (Southern) { 0x1c3b, "sma" }, //Sami (Southern) { 0x2001, "ar-OM" }, //Arabic { 0x2009, "en-JM" }, //English { 0x200a, "es-VE" }, //Spanish { 0x201a, "bs-Cyrl-BA" }, //Bosnian (Cyrillic) { 0x201a, "bs-Cyrl" }, //Bosnian (Cyrillic) { 0x203b, "sms-FI" }, //Sami (Skolt) { 0x203b, "sms" }, //Sami (Skolt) { 0x2401, "ar-YE" }, //Arabic { 0x2409, "en-029" }, //English { 0x240a, "es-CO" }, //Spanish { 0x241a, "sr-Latn-RS" }, //Serbian (Latin) { 0x243b, "smn-FI" }, //Sami (Inari) { 0x2801, "ar-SY" }, //Arabic { 0x2809, "en-BZ" }, //English { 0x280a, "es-PE" }, //Spanish { 0x281a, "sr-Cyrl-RS" }, //Serbian (Cyrillic) { 0x2c01, "ar-JO" }, //Arabic { 0x2c09, "en-TT" }, //English { 0x2c0a, "es-AR" }, //Spanish { 0x2c1a, "sr-Latn-ME" }, //Serbian (Latin) { 0x3001, "ar-LB" }, //Arabic { 0x3009, "en-ZW" }, //English { 0x300a, "es-EC" }, //Spanish { 0x301a, "sr-Cyrl-ME" }, //Serbian (Cyrillic) { 0x3401, "ar-KW" }, //Arabic { 0x3409, "en-PH" }, //English { 0x340a, "es-CL" }, //Spanish { 0x3801, "ar-AE" }, //Arabic { 0x380a, "es-UY" }, //Spanish { 0x3c01, "ar-BH" }, //Arabic { 0x3c0a, "es-PY" }, //Spanish { 0x4001, "ar-QA" }, //Arabic { 0x4009, "en-IN" }, //English { 0x400a, "es-BO" }, //Spanish { 0x4409, "en-MY" }, //English { 0x440a, "es-SV" }, //Spanish { 0x4809, "en-SG" }, //English { 0x480a, "es-HN" }, //Spanish { 0x4c0a, "es-NI" }, //Spanish { 0x500a, "es-PR" }, //Spanish { 0x540a, "es-US" }, //Spanish }; namespace { bool BCP47FromLanguageIdLess(const BCP47FromLanguageId& a, const BCP47FromLanguageId& b) { return a.languageID < b.languageID; } } bool SkOTTableName::Iterator::next(SkOTTableName::Iterator::Record& record) { SkOTTableName nameTable; if (fNameTableSize < sizeof(nameTable)) { return false; } memcpy(&nameTable, fNameTable, sizeof(nameTable)); const uint8_t* nameRecords = fNameTable + sizeof(nameTable); const size_t nameRecordsSize = fNameTableSize - sizeof(nameTable); const size_t stringTableOffset = SkEndian_SwapBE16(nameTable.stringOffset); if (fNameTableSize < stringTableOffset) { return false; } const uint8_t* stringTable = fNameTable + stringTableOffset; const size_t stringTableSize = fNameTableSize - stringTableOffset; // Find the next record which matches the requested type. SkOTTableName::Record nameRecord; const size_t nameRecordsCount = SkEndian_SwapBE16(nameTable.count); const size_t nameRecordsMax = SkTMin(nameRecordsCount, nameRecordsSize / sizeof(nameRecord)); do { if (fIndex >= nameRecordsMax) { return false; } memcpy(&nameRecord, nameRecords + sizeof(nameRecord)*fIndex, sizeof(nameRecord)); ++fIndex; } while (fType != -1 && nameRecord.nameID.fontSpecific != fType); record.type = nameRecord.nameID.fontSpecific; // Decode the name into UTF-8. const size_t nameOffset = SkEndian_SwapBE16(nameRecord.offset); const size_t nameLength = SkEndian_SwapBE16(nameRecord.length); if (stringTableSize < nameOffset + nameLength) { return false; // continue? } const uint8_t* nameString = stringTable + nameOffset; switch (nameRecord.platformID.value) { case SkOTTableName::Record::PlatformID::Windows: if (SkOTTableName::Record::EncodingID::Windows::UnicodeBMPUCS2 != nameRecord.encodingID.windows.value && SkOTTableName::Record::EncodingID::Windows::UnicodeUCS4 != nameRecord.encodingID.windows.value && SkOTTableName::Record::EncodingID::Windows::Symbol != nameRecord.encodingID.windows.value) { record.name.reset(); break; // continue? } case SkOTTableName::Record::PlatformID::Unicode: case SkOTTableName::Record::PlatformID::ISO: SkString_from_UTF16BE(nameString, nameLength, record.name); break; case SkOTTableName::Record::PlatformID::Macintosh: // TODO: need better decoding, especially on Mac. if (SkOTTableName::Record::EncodingID::Macintosh::Roman != nameRecord.encodingID.macintosh.value) { record.name.reset(); break; // continue? } SkStringFromMacRoman(nameString, nameLength, record.name); break; case SkOTTableName::Record::PlatformID::Custom: // These should never appear in a 'name' table. default: SkASSERT(false); record.name.reset(); break; // continue? } // Determine the language. const uint16_t languageID = SkEndian_SwapBE16(nameRecord.languageID.languageTagID); // Handle format 1 languages. if (SkOTTableName::format_1 == nameTable.format && languageID >= 0x8000) { const uint16_t languageTagRecordIndex = languageID - 0x8000; if (nameRecordsSize < sizeof(nameRecord)*nameRecordsCount) { return false; //"und" or break? } const uint8_t* format1extData = nameRecords + sizeof(nameRecord)*nameRecordsCount; size_t format1extSize = nameRecordsSize - sizeof(nameRecord)*nameRecordsCount; SkOTTableName::Format1Ext format1ext; if (format1extSize < sizeof(format1ext)) { return false; // "und" or break? } memcpy(&format1ext, format1extData, sizeof(format1ext)); const uint8_t* languageTagRecords = format1extData + sizeof(format1ext); size_t languageTagRecordsSize = format1extSize - sizeof(format1ext); if (languageTagRecordIndex < SkEndian_SwapBE16(format1ext.langTagCount)) { SkOTTableName::Format1Ext::LangTagRecord languageTagRecord; if (languageTagRecordsSize < sizeof(languageTagRecord)*(languageTagRecordIndex+1)) { return false; // "und"? } const uint8_t* languageTagData = languageTagRecords + sizeof(languageTagRecord)*languageTagRecordIndex; memcpy(&languageTagRecord, languageTagData, sizeof(languageTagRecord)); uint16_t languageOffset = SkEndian_SwapBE16(languageTagRecord.offset); uint16_t languageLength = SkEndian_SwapBE16(languageTagRecord.length); if (fNameTableSize < stringTableOffset + languageOffset + languageLength) { return false; // "und"? } const uint8_t* languageString = stringTable + languageOffset; SkString_from_UTF16BE(languageString, languageLength, record.language); return true; } } // Handle format 0 languages, translating them into BCP 47. const BCP47FromLanguageId target = { languageID, "" }; int languageIndex = SkTSearch( BCP47FromLanguageID, SK_ARRAY_COUNT(BCP47FromLanguageID), target, sizeof(target)); if (languageIndex >= 0) { record.language = BCP47FromLanguageID[languageIndex].bcp47; return true; } // Unknown language, return the BCP 47 code 'und' for 'undetermined'. record.language = "und"; return true; }