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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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65 // for easy removal from list | 65 // for easy removal from list |
66 GrTextStrike* fPrev; | 66 GrTextStrike* fPrev; |
67 GrTextStrike* fNext; | 67 GrTextStrike* fNext; |
68 | 68 |
69 private: | 69 private: |
70 SkTDynamicHash<GrGlyph, GrGlyph::PackedID> fCache; | 70 SkTDynamicHash<GrGlyph, GrGlyph::PackedID> fCache; |
71 const GrFontDescKey* fFontScalerKey; | 71 const GrFontDescKey* fFontScalerKey; |
72 SkVarAlloc fPool; | 72 SkVarAlloc fPool; |
73 | 73 |
74 GrFontCache* fFontCache; | 74 GrFontCache* fFontCache; |
75 bool fUseDistanceField; | |
76 | 75 |
77 GrAtlas::ClientPlotUsage fPlotUsage; | 76 GrAtlas::ClientPlotUsage fPlotUsage; |
78 | 77 |
79 GrGlyph* generateGlyph(GrGlyph::PackedID packed, GrFontScaler* scaler); | 78 GrGlyph* generateGlyph(GrGlyph::PackedID packed, GrFontScaler* scaler); |
80 | 79 |
81 friend class GrFontCache; | 80 friend class GrFontCache; |
82 }; | 81 }; |
83 | 82 |
84 class GrFontCache { | 83 class GrFontCache { |
85 public: | 84 public: |
86 GrFontCache(GrGpu*); | 85 GrFontCache(GrGpu*); |
87 ~GrFontCache(); | 86 ~GrFontCache(); |
88 | 87 |
89 inline GrTextStrike* getStrike(GrFontScaler* scaler, bool useDistanceField)
{ | 88 inline GrTextStrike* getStrike(GrFontScaler* scaler) { |
90 this->validate(); | 89 this->validate(); |
91 | 90 |
92 GrTextStrike* strike = fCache.find(*(scaler->getKey())); | 91 GrTextStrike* strike = fCache.find(*(scaler->getKey())); |
93 if (NULL == strike) { | 92 if (NULL == strike) { |
94 strike = this->generateStrike(scaler); | 93 strike = this->generateStrike(scaler); |
95 } else if (strike->fPrev) { | 94 } else if (strike->fPrev) { |
96 // Need to put the strike at the head of its dllist, since that is h
ow | 95 // Need to put the strike at the head of its dllist, since that is h
ow |
97 // we age the strikes for purging (we purge from the back of the lis
t) | 96 // we age the strikes for purging (we purge from the back of the lis
t) |
98 this->detachStrikeFromList(strike); | 97 this->detachStrikeFromList(strike); |
99 // attach at the head | 98 // attach at the head |
100 fHead->fPrev = strike; | 99 fHead->fPrev = strike; |
101 strike->fNext = fHead; | 100 strike->fNext = fHead; |
102 strike->fPrev = NULL; | 101 strike->fPrev = NULL; |
103 fHead = strike; | 102 fHead = strike; |
104 } | 103 } |
105 strike->fUseDistanceField = useDistanceField; | |
106 this->validate(); | 104 this->validate(); |
107 return strike; | 105 return strike; |
108 } | 106 } |
109 | 107 |
110 // add to texture atlas that matches this format | 108 // add to texture atlas that matches this format |
111 GrPlot* addToAtlas(GrMaskFormat format, GrAtlas::ClientPlotUsage* usage, | 109 GrPlot* addToAtlas(GrMaskFormat format, GrAtlas::ClientPlotUsage* usage, |
112 int width, int height, const void* image, | 110 int width, int height, const void* image, |
113 SkIPoint16* loc); | 111 SkIPoint16* loc); |
114 | 112 |
115 void freeAll(); | 113 void freeAll(); |
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174 } else { | 172 } else { |
175 SkASSERT(fTail == strike); | 173 SkASSERT(fTail == strike); |
176 fTail = strike->fPrev; | 174 fTail = strike->fPrev; |
177 } | 175 } |
178 } | 176 } |
179 | 177 |
180 void purgeStrike(GrTextStrike* strike); | 178 void purgeStrike(GrTextStrike* strike); |
181 }; | 179 }; |
182 | 180 |
183 #endif | 181 #endif |
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