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| 1 /* |
| 2 * Copyright 2013 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 SkPurgeableImageCache_DEFINED |
| 9 #define SkPurgeableImageCache_DEFINED |
| 10 |
| 11 #include "SkImageCache.h" |
| 12 |
| 13 #ifdef SK_DEBUG |
| 14 #include "SkTDArray.h" |
| 15 #endif |
| 16 |
| 17 /** |
| 18 * Implementation for SkImageCache that uses system defined purgeable memory. |
| 19 */ |
| 20 class SkPurgeableImageCache : public SkImageCache { |
| 21 |
| 22 public: |
| 23 static SkImageCache* Create(); |
| 24 |
| 25 virtual void* allocAndPinCache(size_t bytes, intptr_t* ID) SK_OVERRIDE; |
| 26 virtual void* pinCache(intptr_t ID, SkImageCache::DataStatus*) SK_OVERRIDE; |
| 27 virtual void releaseCache(intptr_t ID) SK_OVERRIDE; |
| 28 virtual void throwAwayCache(intptr_t ID) SK_OVERRIDE; |
| 29 |
| 30 #ifdef SK_DEBUG |
| 31 virtual MemoryStatus getMemoryStatus(intptr_t ID) const SK_OVERRIDE; |
| 32 virtual void purgeAllUnpinnedCaches() SK_OVERRIDE; |
| 33 virtual ~SkPurgeableImageCache(); |
| 34 #endif |
| 35 |
| 36 private: |
| 37 SkPurgeableImageCache(); |
| 38 |
| 39 #ifdef SK_DEBUG |
| 40 SkTDArray<intptr_t> fRecs; |
| 41 int findRec(intptr_t) const; |
| 42 #endif |
| 43 void removeRec(intptr_t); |
| 44 }; |
| 45 #endif // SkPurgeableImageCache_DEFINED |
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