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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkOTTable_name.h" | 8 #include "SkOTTable_name.h" |
9 | 9 |
10 #include "SkEndian.h" | 10 #include "SkEndian.h" |
11 #include "SkString.h" | 11 #include "SkString.h" |
12 #include "SkTSearch.h" | 12 #include "SkTSearch.h" |
| 13 #include "SkTemplates.h" |
13 #include "SkUtils.h" | 14 #include "SkUtils.h" |
14 | 15 |
15 static SkUnichar SkUTF16BE_NextUnichar(const uint16_t** srcPtr) { | 16 static SkUnichar SkUTF16BE_NextUnichar(const uint16_t** srcPtr) { |
16 SkASSERT(srcPtr && *srcPtr); | 17 SkASSERT(srcPtr && *srcPtr); |
17 | 18 |
18 const uint16_t* src = *srcPtr; | 19 const uint16_t* src = *srcPtr; |
19 SkUnichar c = SkEndian_SwapBE16(*src++); | 20 SkUnichar c = SkEndian_SwapBE16(*src++); |
20 | 21 |
21 SkASSERT(!SkUTF16_IsLowSurrogate(c)); | 22 SkASSERT(!SkUTF16_IsLowSurrogate(c)); |
22 if (SkUTF16_IsHighSurrogate(c)) { | 23 if (SkUTF16_IsHighSurrogate(c)) { |
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428 { 0x500a, "es-PR" }, //Spanish | 429 { 0x500a, "es-PR" }, //Spanish |
429 { 0x540a, "es-US" }, //Spanish | 430 { 0x540a, "es-US" }, //Spanish |
430 }; | 431 }; |
431 | 432 |
432 namespace { | 433 namespace { |
433 int BCP47FromLanguageIdCompare(const BCP47FromLanguageId* a, const BCP47FromLang
uageId* b) { | 434 int BCP47FromLanguageIdCompare(const BCP47FromLanguageId* a, const BCP47FromLang
uageId* b) { |
434 return a->languageID - b->languageID; | 435 return a->languageID - b->languageID; |
435 } | 436 } |
436 } | 437 } |
437 | 438 |
438 template <typename D, typename S> static D* SkTAfter(S const * const ptr, size_t
count = 1) { | |
439 return (D*)(ptr + count); | |
440 } | |
441 | |
442 template <typename D, typename S> static D* SkTAddOffset(S const * const ptr, si
ze_t byteOffset) { | |
443 return (D*)((char*)ptr + byteOffset); | |
444 } | |
445 | |
446 bool SkOTTableName::Iterator::next(SkOTTableName::Iterator::Record& record) { | 439 bool SkOTTableName::Iterator::next(SkOTTableName::Iterator::Record& record) { |
447 const size_t nameRecordsCount = SkEndian_SwapBE16(fName.count); | 440 const size_t nameRecordsCount = SkEndian_SwapBE16(fName.count); |
448 const SkOTTableName::Record* nameRecords = SkTAfter<const SkOTTableName::Rec
ord>(&fName); | 441 const SkOTTableName::Record* nameRecords = SkTAfter<const SkOTTableName::Rec
ord>(&fName); |
449 const SkOTTableName::Record* nameRecord; | 442 const SkOTTableName::Record* nameRecord; |
450 | 443 |
451 // Find the next record which matches the requested type. | 444 // Find the next record which matches the requested type. |
452 do { | 445 do { |
453 if (fIndex >= nameRecordsCount) { | 446 if (fIndex >= nameRecordsCount) { |
454 return false; | 447 return false; |
455 } | 448 } |
456 | 449 |
457 nameRecord = &nameRecords[fIndex]; | 450 nameRecord = &nameRecords[fIndex]; |
458 ++fIndex; | 451 ++fIndex; |
459 } while (fType != -1 && nameRecord->nameID.fontSpecific != fType); | 452 } while (fType != -1 && nameRecord->nameID.fontSpecific != fType); |
460 | 453 |
461 const uint16_t stringTableOffset = SkEndian_SwapBE16(fName.stringOffset); | 454 const uint16_t stringTableOffset = SkEndian_SwapBE16(fName.stringOffset); |
462 const char* stringTable = SkTAddOffset<char>(&fName, stringTableOffset); | 455 const char* stringTable = SkTAddOffset<const char>(&fName, stringTableOffset
); |
463 | 456 |
464 // Decode the name into UTF-8. | 457 // Decode the name into UTF-8. |
465 const uint16_t nameOffset = SkEndian_SwapBE16(nameRecord->offset); | 458 const uint16_t nameOffset = SkEndian_SwapBE16(nameRecord->offset); |
466 const uint16_t nameLength = SkEndian_SwapBE16(nameRecord->length); | 459 const uint16_t nameLength = SkEndian_SwapBE16(nameRecord->length); |
467 const char* nameString = SkTAddOffset<char>(stringTable, nameOffset); | 460 const char* nameString = SkTAddOffset<const char>(stringTable, nameOffset); |
468 switch (nameRecord->platformID.value) { | 461 switch (nameRecord->platformID.value) { |
469 case SkOTTableName::Record::PlatformID::Windows: | 462 case SkOTTableName::Record::PlatformID::Windows: |
470 SkASSERT(SkOTTableName::Record::EncodingID::Windows::UnicodeBMPUCS2 | 463 SkASSERT(SkOTTableName::Record::EncodingID::Windows::UnicodeBMPUCS2 |
471 == nameRecord->encodingID.windows.value | 464 == nameRecord->encodingID.windows.value |
472 || SkOTTableName::Record::EncodingID::Windows::UnicodeUCS4 | 465 || SkOTTableName::Record::EncodingID::Windows::UnicodeUCS4 |
473 == nameRecord->encodingID.windows.value | 466 == nameRecord->encodingID.windows.value |
474 || SkOTTableName::Record::EncodingID::Windows::Symbol | 467 || SkOTTableName::Record::EncodingID::Windows::Symbol |
475 == nameRecord->encodingID.windows.value); | 468 == nameRecord->encodingID.windows.value); |
476 case SkOTTableName::Record::PlatformID::Unicode: | 469 case SkOTTableName::Record::PlatformID::Unicode: |
477 case SkOTTableName::Record::PlatformID::ISO: | 470 case SkOTTableName::Record::PlatformID::ISO: |
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521 if (languageIndex >= 0) { | 514 if (languageIndex >= 0) { |
522 record.language = BCP47FromLanguageID[languageIndex].bcp47; | 515 record.language = BCP47FromLanguageID[languageIndex].bcp47; |
523 return true; | 516 return true; |
524 } | 517 } |
525 | 518 |
526 // Unknown language, return the BCP 47 code 'und' for 'undetermined'. | 519 // Unknown language, return the BCP 47 code 'und' for 'undetermined'. |
527 SkASSERT(false); | 520 SkASSERT(false); |
528 record.language = "und"; | 521 record.language = "und"; |
529 return true; | 522 return true; |
530 } | 523 } |
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