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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2008 The Android Open Source Project | 3 * Copyright 2008 The Android Open Source Project |
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 #ifndef SkPixelRef_DEFINED | 10 #ifndef SkPixelRef_DEFINED |
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237 }; | 237 }; |
238 | 238 |
239 // Takes ownership of listener. | 239 // Takes ownership of listener. |
240 void addGenIDChangeListener(GenIDChangeListener* listener); | 240 void addGenIDChangeListener(GenIDChangeListener* listener); |
241 | 241 |
242 protected: | 242 protected: |
243 /** Called when the lockCount goes from 0 to 1. The caller will have already | 243 /** Called when the lockCount goes from 0 to 1. The caller will have already |
244 acquire a mutex for thread safety, so this method need not do that. | 244 acquire a mutex for thread safety, so this method need not do that. |
245 */ | 245 */ |
246 virtual void* onLockPixels(SkColorTable**) = 0; | 246 virtual void* onLockPixels(SkColorTable**) = 0; |
247 | 247 /** Called when the lock count goes from 1 to 0. The caller will have |
248 /** | 248 already acquire a mutex for thread safety, so this method need not do |
249 * Called when the lock count goes from 1 to 0. The caller will have | 249 that. |
250 * already acquire a mutex for thread safety, so this method need not do | 250 */ |
251 * that. | |
252 * | |
253 * If the previous call to onLockPixels failed (i.e. returned NULL), then | |
254 * the onUnlockPixels will NOT be called. | |
255 */ | |
256 virtual void onUnlockPixels() = 0; | 251 virtual void onUnlockPixels() = 0; |
257 | 252 |
258 /** Default impl returns true */ | 253 /** Default impl returns true */ |
259 virtual bool onLockPixelsAreWritable() const; | 254 virtual bool onLockPixelsAreWritable() const; |
260 | 255 |
261 // returns false; | 256 // returns false; |
262 virtual bool onImplementsDecodeInto(); | 257 virtual bool onImplementsDecodeInto(); |
263 // returns false; | 258 // returns false; |
264 virtual bool onDecodeInto(int pow2, SkBitmap* bitmap); | 259 virtual bool onDecodeInto(int pow2, SkBitmap* bitmap); |
265 | 260 |
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325 | 320 |
326 // When copying a bitmap to another with the same shape and config, we can s
afely | 321 // When copying a bitmap to another with the same shape and config, we can s
afely |
327 // clone the pixelref generation ID too, which makes them equivalent under c
aching. | 322 // clone the pixelref generation ID too, which makes them equivalent under c
aching. |
328 friend class SkBitmap; // only for cloneGenID | 323 friend class SkBitmap; // only for cloneGenID |
329 void cloneGenID(const SkPixelRef&); | 324 void cloneGenID(const SkPixelRef&); |
330 | 325 |
331 typedef SkFlattenable INHERITED; | 326 typedef SkFlattenable INHERITED; |
332 }; | 327 }; |
333 | 328 |
334 #endif | 329 #endif |
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