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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 | 10 |
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39 inline GrGlyph* getGlyph(GrGlyph::PackedID, GrFontScaler*); | 39 inline GrGlyph* getGlyph(GrGlyph::PackedID, GrFontScaler*); |
40 bool getGlyphAtlas(GrGlyph*, GrFontScaler*); | 40 bool getGlyphAtlas(GrGlyph*, GrFontScaler*); |
41 | 41 |
42 // testing | 42 // testing |
43 int countGlyphs() const { return fCache.getArray().count(); } | 43 int countGlyphs() const { return fCache.getArray().count(); } |
44 const GrGlyph* glyphAt(int index) const { | 44 const GrGlyph* glyphAt(int index) const { |
45 return fCache.getArray()[index]; | 45 return fCache.getArray()[index]; |
46 } | 46 } |
47 GrAtlas* getAtlas() const { return fAtlas; } | 47 GrAtlas* getAtlas() const { return fAtlas; } |
48 | 48 |
| 49 // returns true if an atlas was removed |
| 50 bool removeUnusedAtlases(); |
| 51 |
49 public: | 52 public: |
50 // for LRU | 53 // for LRU |
51 GrTextStrike* fPrev; | 54 GrTextStrike* fPrev; |
52 GrTextStrike* fNext; | 55 GrTextStrike* fNext; |
53 | 56 |
54 private: | 57 private: |
55 class Key; | 58 class Key; |
56 GrTHashTable<GrGlyph, Key, 7> fCache; | 59 GrTHashTable<GrGlyph, Key, 7> fCache; |
57 const GrKey* fFontScalerKey; | 60 const GrKey* fFontScalerKey; |
58 GrTAllocPool<GrGlyph> fPool; | 61 GrTAllocPool<GrGlyph> fPool; |
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74 public: | 77 public: |
75 GrFontCache(GrGpu*); | 78 GrFontCache(GrGpu*); |
76 ~GrFontCache(); | 79 ~GrFontCache(); |
77 | 80 |
78 inline GrTextStrike* getStrike(GrFontScaler*); | 81 inline GrTextStrike* getStrike(GrFontScaler*); |
79 | 82 |
80 void freeAll(); | 83 void freeAll(); |
81 | 84 |
82 void purgeExceptFor(GrTextStrike*); | 85 void purgeExceptFor(GrTextStrike*); |
83 | 86 |
| 87 // remove an unused atlas and its strike (if necessary) |
| 88 void freeAtlasExceptFor(GrTextStrike*); |
| 89 |
84 // testing | 90 // testing |
85 int countStrikes() const { return fCache.getArray().count(); } | 91 int countStrikes() const { return fCache.getArray().count(); } |
86 const GrTextStrike* strikeAt(int index) const { | 92 const GrTextStrike* strikeAt(int index) const { |
87 return fCache.getArray()[index]; | 93 return fCache.getArray()[index]; |
88 } | 94 } |
89 GrTextStrike* getHeadStrike() const { return fHead; } | 95 GrTextStrike* getHeadStrike() const { return fHead; } |
90 | 96 |
91 #if GR_DEBUG | 97 #if GR_DEBUG |
92 void validate() const; | 98 void validate() const; |
93 #else | 99 #else |
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105 | 111 |
106 GrGpu* fGpu; | 112 GrGpu* fGpu; |
107 GrAtlasMgr* fAtlasMgr; | 113 GrAtlasMgr* fAtlasMgr; |
108 | 114 |
109 | 115 |
110 GrTextStrike* generateStrike(GrFontScaler*, const Key&); | 116 GrTextStrike* generateStrike(GrFontScaler*, const Key&); |
111 inline void detachStrikeFromList(GrTextStrike*); | 117 inline void detachStrikeFromList(GrTextStrike*); |
112 }; | 118 }; |
113 | 119 |
114 #endif | 120 #endif |
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