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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 #ifndef GrLayerCache_DEFINED | 8 #ifndef GrLayerCache_DEFINED |
9 #define GrLayerCache_DEFINED | 9 #define GrLayerCache_DEFINED |
10 | 10 |
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115 } | 115 } |
116 GrTexture* texture() { return fTexture; } | 116 GrTexture* texture() { return fTexture; } |
117 const GrIRect16& rect() const { return fRect; } | 117 const GrIRect16& rect() const { return fRect; } |
118 | 118 |
119 void setPlot(GrPlot* plot) { | 119 void setPlot(GrPlot* plot) { |
120 SkASSERT(NULL == plot || NULL == fPlot); | 120 SkASSERT(NULL == plot || NULL == fPlot); |
121 fPlot = plot; | 121 fPlot = plot; |
122 } | 122 } |
123 GrPlot* plot() { return fPlot; } | 123 GrPlot* plot() { return fPlot; } |
124 | 124 |
125 bool isAtlased() const { return NULL != fPlot; } | 125 bool isAtlased() const { return SkToBool(fPlot); } |
126 | 126 |
127 void setLocked(bool locked) { fLocked = locked; } | 127 void setLocked(bool locked) { fLocked = locked; } |
128 bool locked() const { return fLocked; } | 128 bool locked() const { return fLocked; } |
129 | 129 |
130 SkDEBUGCODE(const GrPlot* plot() const { return fPlot; }) | 130 SkDEBUGCODE(const GrPlot* plot() const { return fPlot; }) |
131 SkDEBUGCODE(void validate(const GrTexture* backingTexture) const;) | 131 SkDEBUGCODE(void validate(const GrTexture* backingTexture) const;) |
132 | 132 |
133 private: | 133 private: |
134 const Key fKey; | 134 const Key fKey; |
135 | 135 |
136 // fTexture is a ref on the atlasing texture for atlased layers and a | 136 // fTexture is a ref on the atlasing texture for atlased layers and a |
137 // ref on a GrTexture for non-atlased textures. | 137 // ref on a GrTexture for non-atlased textures. |
138 GrTexture* fTexture; | 138 GrTexture* fTexture; |
139 | 139 |
140 // For both atlased and non-atlased layers 'fRect' contains the bound of | 140 // For both atlased and non-atlased layers 'fRect' contains the bound of |
141 // the layer in whichever texture it resides. It is empty when 'fTexture' | 141 // the layer in whichever texture it resides. It is empty when 'fTexture' |
142 // is NULL. | 142 // is NULL. |
143 GrIRect16 fRect; | 143 GrIRect16 fRect; |
144 | 144 |
145 // For atlased layers, fPlot stores the atlas plot in which the layer rests. | 145 // For atlased layers, fPlot stores the atlas plot in which the layer rests. |
146 // It is always NULL for non-atlased layers. | 146 // It is always NULL for non-atlased layers. |
147 GrPlot* fPlot; | 147 GrPlot* fPlot; |
148 | 148 |
149 // For non-atlased layers 'fLocked' should always match "NULL != fTexture". | 149 // For non-atlased layers 'fLocked' should always match "fTexture". |
150 // (i.e., if there is a texture it is locked). | 150 // (i.e., if there is a texture it is locked). |
151 // For atlased layers, 'fLocked' is true if the layer is in a plot and | 151 // For atlased layers, 'fLocked' is true if the layer is in a plot and |
152 // actively required for rendering. If the layer is in a plot but not | 152 // actively required for rendering. If the layer is in a plot but not |
153 // actively required for rendering, then 'fLocked' is false. If the | 153 // actively required for rendering, then 'fLocked' is false. If the |
154 // layer isn't in a plot then is can never be locked. | 154 // layer isn't in a plot then is can never be locked. |
155 bool fLocked; | 155 bool fLocked; |
156 }; | 156 }; |
157 | 157 |
158 // The GrLayerCache caches pre-computed saveLayers for later rendering. | 158 // The GrLayerCache caches pre-computed saveLayers for later rendering. |
159 // Non-atlased layers are stored in their own GrTexture while the atlased | 159 // Non-atlased layers are stored in their own GrTexture while the atlased |
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244 // Try to find a purgeable plot and clear it out. Return true if a plot | 244 // Try to find a purgeable plot and clear it out. Return true if a plot |
245 // was purged; false otherwise. | 245 // was purged; false otherwise. |
246 bool purgePlot(); | 246 bool purgePlot(); |
247 | 247 |
248 // for testing | 248 // for testing |
249 friend class TestingAccess; | 249 friend class TestingAccess; |
250 int numLayers() const { return fLayerHash.count(); } | 250 int numLayers() const { return fLayerHash.count(); } |
251 }; | 251 }; |
252 | 252 |
253 #endif | 253 #endif |
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