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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
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 "SkAdvancedTypefaceMetrics.h" | 8 #include "SkAdvancedTypefaceMetrics.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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174 if (0 == gFTCount) { | 174 if (0 == gFTCount) { |
175 SkASSERT(nullptr == gFaceRecHead); | 175 SkASSERT(nullptr == gFaceRecHead); |
176 SkASSERT(nullptr != gFTLibrary); | 176 SkASSERT(nullptr != gFTLibrary); |
177 delete gFTLibrary; | 177 delete gFTLibrary; |
178 SkDEBUGCODE(gFTLibrary = nullptr;) | 178 SkDEBUGCODE(gFTLibrary = nullptr;) |
179 } | 179 } |
180 } | 180 } |
181 | 181 |
182 class SkScalerContext_FreeType : public SkScalerContext_FreeType_Base { | 182 class SkScalerContext_FreeType : public SkScalerContext_FreeType_Base { |
183 public: | 183 public: |
184 SkScalerContext_FreeType(SkTypeface*, const SkScalerContextEffects&, const S
kDescriptor* desc); | 184 SkScalerContext_FreeType(SkTypeface*, const SkDescriptor* desc); |
185 virtual ~SkScalerContext_FreeType(); | 185 virtual ~SkScalerContext_FreeType(); |
186 | 186 |
187 bool success() const { | 187 bool success() const { |
188 return fFTSize != nullptr && fFace != nullptr; | 188 return fFTSize != nullptr && fFace != nullptr; |
189 } | 189 } |
190 | 190 |
191 protected: | 191 protected: |
192 unsigned generateGlyphCount() override; | 192 unsigned generateGlyphCount() override; |
193 uint16_t generateCharToGlyph(SkUnichar uni) override; | 193 uint16_t generateCharToGlyph(SkUnichar uni) override; |
194 void generateAdvance(SkGlyph* glyph) override; | 194 void generateAdvance(SkGlyph* glyph) override; |
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656 return 0 == a && 0 == b; | 656 return 0 == a && 0 == b; |
657 } | 657 } |
658 | 658 |
659 // returns false if there is any non-90-rotation or skew | 659 // returns false if there is any non-90-rotation or skew |
660 static bool isAxisAligned(const SkScalerContext::Rec& rec) { | 660 static bool isAxisAligned(const SkScalerContext::Rec& rec) { |
661 return 0 == rec.fPreSkewX && | 661 return 0 == rec.fPreSkewX && |
662 (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || | 662 (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || |
663 bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); | 663 bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); |
664 } | 664 } |
665 | 665 |
666 SkScalerContext* SkTypeface_FreeType::onCreateScalerContext(const SkScalerContex
tEffects& effects, | 666 SkScalerContext* SkTypeface_FreeType::onCreateScalerContext( |
667 const SkDescriptor*
desc) const { | 667 const SkDescriptor* desc) const { |
668 SkScalerContext_FreeType* c = | 668 SkScalerContext_FreeType* c = |
669 new SkScalerContext_FreeType(const_cast<SkTypeface_FreeType*>(this),
effects, desc); | 669 new SkScalerContext_FreeType(const_cast<SkTypeface_FreeType*>(this),
desc); |
670 if (!c->success()) { | 670 if (!c->success()) { |
671 delete c; | 671 delete c; |
672 c = nullptr; | 672 c = nullptr; |
673 } | 673 } |
674 return c; | 674 return c; |
675 } | 675 } |
676 | 676 |
677 void SkTypeface_FreeType::onFilterRec(SkScalerContextRec* rec) const { | 677 void SkTypeface_FreeType::onFilterRec(SkScalerContextRec* rec) const { |
678 //BOGUS: http://code.google.com/p/chromium/issues/detail?id=121119 | 678 //BOGUS: http://code.google.com/p/chromium/issues/detail?id=121119 |
679 //Cap the requested size as larger sizes give bogus values. | 679 //Cap the requested size as larger sizes give bogus values. |
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783 FT_Error err = FT_Select_Size(face, chosenStrikeIndex); | 783 FT_Error err = FT_Select_Size(face, chosenStrikeIndex); |
784 if (err != 0) { | 784 if (err != 0) { |
785 SkDEBUGF(("FT_Select_Size(%s, %d) returned 0x%x\n", face->family_nam
e, | 785 SkDEBUGF(("FT_Select_Size(%s, %d) returned 0x%x\n", face->family_nam
e, |
786 chosenStrikeIndex, err)); | 786 chosenStrikeIndex, err)); |
787 chosenStrikeIndex = -1; | 787 chosenStrikeIndex = -1; |
788 } | 788 } |
789 } | 789 } |
790 return chosenStrikeIndex; | 790 return chosenStrikeIndex; |
791 } | 791 } |
792 | 792 |
793 SkScalerContext_FreeType::SkScalerContext_FreeType(SkTypeface* typeface, | 793 SkScalerContext_FreeType::SkScalerContext_FreeType(SkTypeface* typeface, const S
kDescriptor* desc) |
794 const SkScalerContextEffects&
effects, | 794 : SkScalerContext_FreeType_Base(typeface, desc) |
795 const SkDescriptor* desc) | |
796 : SkScalerContext_FreeType_Base(typeface, effects, desc) | |
797 , fFace(nullptr) | 795 , fFace(nullptr) |
798 , fFTSize(nullptr) | 796 , fFTSize(nullptr) |
799 , fStrikeIndex(-1) | 797 , fStrikeIndex(-1) |
800 { | 798 { |
801 SkAutoMutexAcquire ac(gFTMutex); | 799 SkAutoMutexAcquire ac(gFTMutex); |
802 | 800 |
803 if (!ref_ft_library()) { | 801 if (!ref_ft_library()) { |
804 sk_throw(); | 802 sk_throw(); |
805 } | 803 } |
806 | 804 |
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1817 SkDEBUGF(("Requested font axis not found: %s '%c%c%c%c'\n", | 1815 SkDEBUGF(("Requested font axis not found: %s '%c%c%c%c'\n", |
1818 name.c_str(), | 1816 name.c_str(), |
1819 (skTag >> 24) & 0xFF, | 1817 (skTag >> 24) & 0xFF, |
1820 (skTag >> 16) & 0xFF, | 1818 (skTag >> 16) & 0xFF, |
1821 (skTag >> 8) & 0xFF, | 1819 (skTag >> 8) & 0xFF, |
1822 (skTag) & 0xFF)); | 1820 (skTag) & 0xFF)); |
1823 } | 1821 } |
1824 } | 1822 } |
1825 ) | 1823 ) |
1826 } | 1824 } |
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