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| 1 /* | |
| 2 * Copyright 2010 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrFontScaler_DEFINED | |
| 9 #define GrFontScaler_DEFINED | |
| 10 | |
| 11 #include "GrGlyph.h" | |
| 12 #include "GrTypes.h" | |
| 13 | |
| 14 #include "SkDescriptor.h" | |
| 15 | |
| 16 class SkPath; | |
| 17 | |
| 18 /* | |
| 19 * Wrapper class to turn a font cache descriptor into a key | |
| 20 * for GrFontScaler-related lookups | |
| 21 */ | |
| 22 class GrFontDescKey : public SkRefCnt { | |
| 23 public: | |
| 24 SK_DECLARE_INST_COUNT(GrFontDescKey) | |
| 25 | |
| 26 typedef uint32_t Hash; | |
| 27 | |
| 28 explicit GrFontDescKey(const SkDescriptor& desc); | |
| 29 virtual ~GrFontDescKey(); | |
| 30 | |
| 31 Hash getHash() const { return fHash; } | |
| 32 | |
| 33 bool operator<(const GrFontDescKey& rh) const { | |
| 34 return fHash < rh.fHash || (fHash == rh.fHash && this->lt(rh)); | |
| 35 } | |
| 36 bool operator==(const GrFontDescKey& rh) const { | |
| 37 return fHash == rh.fHash && this->eq(rh); | |
| 38 } | |
| 39 | |
| 40 private: | |
| 41 // helper functions for comparisons | |
| 42 bool lt(const GrFontDescKey& rh) const; | |
| 43 bool eq(const GrFontDescKey& rh) const; | |
| 44 | |
| 45 SkDescriptor* fDesc; | |
| 46 enum { | |
| 47 kMaxStorageInts = 16 | |
| 48 }; | |
| 49 uint32_t fStorage[kMaxStorageInts]; | |
| 50 const Hash fHash; | |
| 51 | |
| 52 typedef SkRefCnt INHERITED; | |
| 53 }; | |
| 54 | |
| 55 /* | |
| 56 * This is Gr's interface to the host platform's font scaler. | |
| 57 * | |
| 58 * The client is responsible for instantiating this. The instance is created | |
| 59 * for a specific font+size+matrix. | |
| 60 */ | |
| 61 class GrFontScaler : public SkRefCnt { | |
| 62 public: | |
| 63 SK_DECLARE_INST_COUNT(GrFontScaler) | |
| 64 | |
| 65 explicit GrFontScaler(SkGlyphCache* strike); | |
| 66 virtual ~GrFontScaler(); | |
| 67 | |
| 68 const GrFontDescKey* getKey(); | |
| 69 GrMaskFormat getMaskFormat() const; | |
| 70 GrMaskFormat getPackedGlyphMaskFormat(GrGlyph::PackedID) const; | |
| 71 bool getPackedGlyphBounds(GrGlyph::PackedID, SkIRect* bounds); | |
| 72 bool getPackedGlyphImage(GrGlyph::PackedID, int width, int height, | |
| 73 int rowBytes, void* image); | |
| 74 bool getPackedGlyphDFBounds(GrGlyph::PackedID, SkIRect* bounds); | |
| 75 bool getPackedGlyphDFImage(GrGlyph::PackedID, int width, int height, | |
| 76 void* image); | |
| 77 bool getGlyphPath(uint16_t glyphID, SkPath*); | |
| 78 | |
| 79 private: | |
| 80 SkGlyphCache* fStrike; | |
| 81 GrFontDescKey* fKey; | |
| 82 | |
| 83 typedef SkRefCnt INHERITED; | |
| 84 }; | |
| 85 | |
| 86 #endif | |
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Chromium Code Reviews
Issue 721903002:
Cleanup public includes directory. (Closed)
Base URL: https://skia.googlesource.com/skia.git@master