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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "SkDataTable.h" | 8 #include "SkDataTable.h" |
9 #include "SkFontDescriptor.h" | 9 #include "SkFontDescriptor.h" |
10 #include "SkFontHost_FreeType_common.h" | 10 #include "SkFontHost_FreeType_common.h" |
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375 | 375 |
376 class SkTypeface_stream : public SkTypeface_FreeType { | 376 class SkTypeface_stream : public SkTypeface_FreeType { |
377 public: | 377 public: |
378 /** @param stream does not take ownership of the reference, does take owners
hip of the stream.*/ | 378 /** @param stream does not take ownership of the reference, does take owners
hip of the stream.*/ |
379 SkTypeface_stream(const SkFontStyle& style, bool fixedWidth, int index, SkSt
reamAsset* stream) | 379 SkTypeface_stream(const SkFontStyle& style, bool fixedWidth, int index, SkSt
reamAsset* stream) |
380 : INHERITED(style, SkTypefaceCache::NewFontID(), fixedWidth) | 380 : INHERITED(style, SkTypefaceCache::NewFontID(), fixedWidth) |
381 , fStream(SkRef(stream)) | 381 , fStream(SkRef(stream)) |
382 , fIndex(index) | 382 , fIndex(index) |
383 { }; | 383 { }; |
384 | 384 |
385 virtual void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { | 385 void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { |
386 familyName->reset(); | 386 familyName->reset(); |
387 } | 387 } |
388 | 388 |
389 virtual void onGetFontDescriptor(SkFontDescriptor* desc, bool* serialize) co
nst SK_OVERRIDE { | 389 void onGetFontDescriptor(SkFontDescriptor* desc, bool* serialize) const SK_O
VERRIDE { |
390 desc->setFontIndex(fIndex); | 390 desc->setFontIndex(fIndex); |
391 *serialize = true; | 391 *serialize = true; |
392 } | 392 } |
393 | 393 |
394 virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { | 394 SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { |
395 *ttcIndex = fIndex; | 395 *ttcIndex = fIndex; |
396 return fStream->duplicate(); | 396 return fStream->duplicate(); |
397 } | 397 } |
398 | 398 |
399 private: | 399 private: |
400 SkAutoTUnref<SkStreamAsset> fStream; | 400 SkAutoTUnref<SkStreamAsset> fStream; |
401 int fIndex; | 401 int fIndex; |
402 | 402 |
403 typedef SkTypeface_FreeType INHERITED; | 403 typedef SkTypeface_FreeType INHERITED; |
404 }; | 404 }; |
405 | 405 |
406 class SkTypeface_fontconfig : public SkTypeface_FreeType { | 406 class SkTypeface_fontconfig : public SkTypeface_FreeType { |
407 public: | 407 public: |
408 /** @param pattern takes ownership of the reference. */ | 408 /** @param pattern takes ownership of the reference. */ |
409 static SkTypeface_fontconfig* Create(FcPattern* pattern) { | 409 static SkTypeface_fontconfig* Create(FcPattern* pattern) { |
410 return SkNEW_ARGS(SkTypeface_fontconfig, (pattern)); | 410 return SkNEW_ARGS(SkTypeface_fontconfig, (pattern)); |
411 } | 411 } |
412 mutable SkAutoFcPattern fPattern; | 412 mutable SkAutoFcPattern fPattern; |
413 | 413 |
414 virtual void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { | 414 void onGetFamilyName(SkString* familyName) const SK_OVERRIDE { |
415 *familyName = get_string(fPattern, FC_FAMILY); | 415 *familyName = get_string(fPattern, FC_FAMILY); |
416 } | 416 } |
417 | 417 |
418 virtual void onGetFontDescriptor(SkFontDescriptor* desc, bool* serialize) co
nst SK_OVERRIDE { | 418 void onGetFontDescriptor(SkFontDescriptor* desc, bool* serialize) const SK_O
VERRIDE { |
419 FCLocker lock; | 419 FCLocker lock; |
420 desc->setFamilyName(get_string(fPattern, FC_FAMILY)); | 420 desc->setFamilyName(get_string(fPattern, FC_FAMILY)); |
421 desc->setFullName(get_string(fPattern, FC_FULLNAME)); | 421 desc->setFullName(get_string(fPattern, FC_FULLNAME)); |
422 desc->setPostscriptName(get_string(fPattern, FC_POSTSCRIPT_NAME)); | 422 desc->setPostscriptName(get_string(fPattern, FC_POSTSCRIPT_NAME)); |
423 desc->setFontFileName(get_string(fPattern, FC_FILE)); | 423 desc->setFontFileName(get_string(fPattern, FC_FILE)); |
424 desc->setFontIndex(get_int(fPattern, FC_INDEX, 0)); | 424 desc->setFontIndex(get_int(fPattern, FC_INDEX, 0)); |
425 *serialize = false; | 425 *serialize = false; |
426 } | 426 } |
427 | 427 |
428 virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { | 428 SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE { |
429 FCLocker lock; | 429 FCLocker lock; |
430 *ttcIndex = get_int(fPattern, FC_INDEX, 0); | 430 *ttcIndex = get_int(fPattern, FC_INDEX, 0); |
431 return SkStream::NewFromFile(get_string(fPattern, FC_FILE)); | 431 return SkStream::NewFromFile(get_string(fPattern, FC_FILE)); |
432 } | 432 } |
433 | 433 |
434 virtual ~SkTypeface_fontconfig() { | 434 virtual ~SkTypeface_fontconfig() { |
435 // Hold the lock while unrefing the pattern. | 435 // Hold the lock while unrefing the pattern. |
436 FCLocker lock; | 436 FCLocker lock; |
437 fPattern.reset(); | 437 fPattern.reset(); |
438 } | 438 } |
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462 StyleSet(const SkFontMgr_fontconfig* parent, FcFontSet* fontSet) | 462 StyleSet(const SkFontMgr_fontconfig* parent, FcFontSet* fontSet) |
463 : fFontMgr(SkRef(parent)), fFontSet(fontSet) | 463 : fFontMgr(SkRef(parent)), fFontSet(fontSet) |
464 { } | 464 { } |
465 | 465 |
466 virtual ~StyleSet() { | 466 virtual ~StyleSet() { |
467 // Hold the lock while unrefing the font set. | 467 // Hold the lock while unrefing the font set. |
468 FCLocker lock; | 468 FCLocker lock; |
469 fFontSet.reset(); | 469 fFontSet.reset(); |
470 } | 470 } |
471 | 471 |
472 virtual int count() SK_OVERRIDE { return fFontSet->nfont; } | 472 int count() SK_OVERRIDE { return fFontSet->nfont; } |
473 | 473 |
474 virtual void getStyle(int index, SkFontStyle* style, SkString* styleName
) SK_OVERRIDE { | 474 void getStyle(int index, SkFontStyle* style, SkString* styleName) SK_OVE
RRIDE { |
475 if (index < 0 || fFontSet->nfont <= index) { | 475 if (index < 0 || fFontSet->nfont <= index) { |
476 return; | 476 return; |
477 } | 477 } |
478 | 478 |
479 FCLocker lock; | 479 FCLocker lock; |
480 if (style) { | 480 if (style) { |
481 *style = skfontstyle_from_fcpattern(fFontSet->fonts[index]); | 481 *style = skfontstyle_from_fcpattern(fFontSet->fonts[index]); |
482 } | 482 } |
483 if (styleName) { | 483 if (styleName) { |
484 *styleName = get_string(fFontSet->fonts[index], FC_STYLE); | 484 *styleName = get_string(fFontSet->fonts[index], FC_STYLE); |
485 } | 485 } |
486 } | 486 } |
487 | 487 |
488 virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { | 488 SkTypeface* createTypeface(int index) SK_OVERRIDE { |
489 FCLocker lock; | 489 FCLocker lock; |
490 | 490 |
491 FcPattern* match = fFontSet->fonts[index]; | 491 FcPattern* match = fFontSet->fonts[index]; |
492 return fFontMgr->createTypefaceFromFcPattern(match); | 492 return fFontMgr->createTypefaceFromFcPattern(match); |
493 } | 493 } |
494 | 494 |
495 virtual SkTypeface* matchStyle(const SkFontStyle& style) SK_OVERRIDE { | 495 SkTypeface* matchStyle(const SkFontStyle& style) SK_OVERRIDE { |
496 FCLocker lock; | 496 FCLocker lock; |
497 | 497 |
498 SkAutoFcPattern pattern; | 498 SkAutoFcPattern pattern; |
499 fcpattern_from_skfontstyle(style, pattern); | 499 fcpattern_from_skfontstyle(style, pattern); |
500 FcConfigSubstitute(fFontMgr->fFC, pattern, FcMatchPattern); | 500 FcConfigSubstitute(fFontMgr->fFC, pattern, FcMatchPattern); |
501 FcDefaultSubstitute(pattern); | 501 FcDefaultSubstitute(pattern); |
502 | 502 |
503 FcResult result; | 503 FcResult result; |
504 FcFontSet* fontSets[1] = { fFontSet }; | 504 FcFontSet* fontSets[1] = { fFontSet }; |
505 SkAutoFcPattern match(FcFontSetMatch(fFontMgr->fFC, | 505 SkAutoFcPattern match(FcFontSetMatch(fFontMgr->fFC, |
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600 : fFC(config) | 600 : fFC(config) |
601 , fFamilyNames(GetFamilyNames(fFC)) { } | 601 , fFamilyNames(GetFamilyNames(fFC)) { } |
602 | 602 |
603 virtual ~SkFontMgr_fontconfig() { | 603 virtual ~SkFontMgr_fontconfig() { |
604 // Hold the lock while unrefing the config. | 604 // Hold the lock while unrefing the config. |
605 FCLocker lock; | 605 FCLocker lock; |
606 fFC.reset(); | 606 fFC.reset(); |
607 } | 607 } |
608 | 608 |
609 protected: | 609 protected: |
610 virtual int onCountFamilies() const SK_OVERRIDE { | 610 int onCountFamilies() const SK_OVERRIDE { |
611 return fFamilyNames->count(); | 611 return fFamilyNames->count(); |
612 } | 612 } |
613 | 613 |
614 virtual void onGetFamilyName(int index, SkString* familyName) const SK_OVERR
IDE { | 614 void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE { |
615 familyName->set(fFamilyNames->atStr(index)); | 615 familyName->set(fFamilyNames->atStr(index)); |
616 } | 616 } |
617 | 617 |
618 virtual SkFontStyleSet* onCreateStyleSet(int index) const SK_OVERRIDE { | 618 SkFontStyleSet* onCreateStyleSet(int index) const SK_OVERRIDE { |
619 return this->onMatchFamily(fFamilyNames->atStr(index)); | 619 return this->onMatchFamily(fFamilyNames->atStr(index)); |
620 } | 620 } |
621 | 621 |
622 /** True if any string object value in the font is the same | 622 /** True if any string object value in the font is the same |
623 * as a string object value in the pattern. | 623 * as a string object value in the pattern. |
624 */ | 624 */ |
625 static bool AnyMatching(FcPattern* font, FcPattern* pattern, const char* obj
ect) { | 625 static bool AnyMatching(FcPattern* font, FcPattern* pattern, const char* obj
ect) { |
626 FcChar8* fontString; | 626 FcChar8* fontString; |
627 FcChar8* patternString; | 627 FcChar8* patternString; |
628 FcResult result; | 628 FcResult result; |
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677 if (FcResultMatch != result) { | 677 if (FcResultMatch != result) { |
678 continue; | 678 continue; |
679 } | 679 } |
680 if (FcCharSetHasChar(matchCharSet, character)) { | 680 if (FcCharSetHasChar(matchCharSet, character)) { |
681 return true; | 681 return true; |
682 } | 682 } |
683 } | 683 } |
684 return false; | 684 return false; |
685 } | 685 } |
686 | 686 |
687 virtual SkFontStyleSet* onMatchFamily(const char familyName[]) const SK_OVER
RIDE { | 687 SkFontStyleSet* onMatchFamily(const char familyName[]) const SK_OVERRIDE { |
688 FCLocker lock; | 688 FCLocker lock; |
689 | 689 |
690 SkAutoFcPattern pattern; | 690 SkAutoFcPattern pattern; |
691 FcPatternAddString(pattern, FC_FAMILY, (FcChar8*)familyName); | 691 FcPatternAddString(pattern, FC_FAMILY, (FcChar8*)familyName); |
692 FcConfigSubstitute(fFC, pattern, FcMatchPattern); | 692 FcConfigSubstitute(fFC, pattern, FcMatchPattern); |
693 FcDefaultSubstitute(pattern); | 693 FcDefaultSubstitute(pattern); |
694 | 694 |
695 FcPattern* matchPattern; | 695 FcPattern* matchPattern; |
696 SkAutoFcPattern strongPattern(NULL); | 696 SkAutoFcPattern strongPattern(NULL); |
697 if (familyName) { | 697 if (familyName) { |
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803 virtual SkTypeface* onMatchFaceStyle(const SkTypeface* typeface, | 803 virtual SkTypeface* onMatchFaceStyle(const SkTypeface* typeface, |
804 const SkFontStyle& style) const SK_OVER
RIDE | 804 const SkFontStyle& style) const SK_OVER
RIDE |
805 { | 805 { |
806 //TODO: should the SkTypeface_fontconfig know its family? | 806 //TODO: should the SkTypeface_fontconfig know its family? |
807 const SkTypeface_fontconfig* fcTypeface = | 807 const SkTypeface_fontconfig* fcTypeface = |
808 static_cast<const SkTypeface_fontconfig*>(typeface); | 808 static_cast<const SkTypeface_fontconfig*>(typeface); |
809 return this->matchFamilyStyle(get_string(fcTypeface->fPattern, FC_FAMILY
), style); | 809 return this->matchFamilyStyle(get_string(fcTypeface->fPattern, FC_FAMILY
), style); |
810 } | 810 } |
811 | 811 |
812 /** @param stream does not take ownership of the reference. */ | 812 /** @param stream does not take ownership of the reference. */ |
813 virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) const
SK_OVERRIDE { | 813 SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) const SK_OVER
RIDE { |
814 const size_t length = stream->getLength(); | 814 const size_t length = stream->getLength(); |
815 if (length <= 0 || (1u << 30) < length) { | 815 if (length <= 0 || (1u << 30) < length) { |
816 return NULL; | 816 return NULL; |
817 } | 817 } |
818 | 818 |
819 SkFontStyle style; | 819 SkFontStyle style; |
820 bool isFixedWidth = false; | 820 bool isFixedWidth = false; |
821 if (!fScanner.scanFont(stream, ttcIndex, NULL, &style, &isFixedWidth)) { | 821 if (!fScanner.scanFont(stream, ttcIndex, NULL, &style, &isFixedWidth)) { |
822 return NULL; | 822 return NULL; |
823 } | 823 } |
824 | 824 |
825 return SkNEW_ARGS(SkTypeface_stream, (style, isFixedWidth, ttcIndex, | 825 return SkNEW_ARGS(SkTypeface_stream, (style, isFixedWidth, ttcIndex, |
826 static_cast<SkStreamAsset*>(stream
))); | 826 static_cast<SkStreamAsset*>(stream
))); |
827 } | 827 } |
828 | 828 |
829 virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OV
ERRIDE { | 829 SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OVERRIDE { |
830 SkAutoTUnref<SkStreamAsset> stream(SkNEW_ARGS(SkMemoryStream, (data))); | 830 SkAutoTUnref<SkStreamAsset> stream(SkNEW_ARGS(SkMemoryStream, (data))); |
831 return this->createFromStream(stream, ttcIndex); | 831 return this->createFromStream(stream, ttcIndex); |
832 } | 832 } |
833 | 833 |
834 virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const
SK_OVERRIDE { | 834 SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const SK_OVERR
IDE { |
835 SkAutoTUnref<SkStreamAsset> stream(SkStream::NewFromFile(path)); | 835 SkAutoTUnref<SkStreamAsset> stream(SkStream::NewFromFile(path)); |
836 return this->createFromStream(stream, ttcIndex); | 836 return this->createFromStream(stream, ttcIndex); |
837 } | 837 } |
838 | 838 |
839 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], | 839 virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], |
840 unsigned styleBits) const SK_OVER
RIDE { | 840 unsigned styleBits) const SK_OVER
RIDE { |
841 bool bold = styleBits & SkTypeface::kBold; | 841 bool bold = styleBits & SkTypeface::kBold; |
842 bool italic = styleBits & SkTypeface::kItalic; | 842 bool italic = styleBits & SkTypeface::kItalic; |
843 SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight | 843 SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight |
844 : SkFontStyle::kNormal_Weight, | 844 : SkFontStyle::kNormal_Weight, |
845 SkFontStyle::kNormal_Width, | 845 SkFontStyle::kNormal_Width, |
846 italic ? SkFontStyle::kItalic_Slant | 846 italic ? SkFontStyle::kItalic_Slant |
847 : SkFontStyle::kUpright_Slant); | 847 : SkFontStyle::kUpright_Slant); |
848 SkAutoTUnref<SkTypeface> typeface(this->matchFamilyStyle(familyName, sty
le)); | 848 SkAutoTUnref<SkTypeface> typeface(this->matchFamilyStyle(familyName, sty
le)); |
849 if (typeface.get()) { | 849 if (typeface.get()) { |
850 return typeface.detach(); | 850 return typeface.detach(); |
851 } | 851 } |
852 | 852 |
853 return this->matchFamilyStyle(NULL, style); | 853 return this->matchFamilyStyle(NULL, style); |
854 } | 854 } |
855 }; | 855 }; |
856 | 856 |
857 SkFontMgr* SkFontMgr::Factory() { | 857 SkFontMgr* SkFontMgr::Factory() { |
858 return SkNEW(SkFontMgr_fontconfig); | 858 return SkNEW(SkFontMgr_fontconfig); |
859 } | 859 } |
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