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 SK_DECLARE_INST_COUNT(SkPurgeableImageCache) 24 25 static SkImageCache* Create(); 26 27 virtual void* allocAndPinCache(size_t bytes, ID*) SK_OVERRIDE; 28 virtual void* pinCache(ID, SkImageCache::DataStatus*) SK_OVERRIDE; 29 virtual void releaseCache(ID) SK_OVERRIDE; 30 virtual void throwAwayCache(ID) SK_OVERRIDE; 31 32 #ifdef SK_DEBUG 33 virtual MemoryStatus getMemoryStatus(ID) const SK_OVERRIDE; 34 virtual void purgeAllUnpinnedCaches() SK_OVERRIDE; 35 virtual ~SkPurgeableImageCache(); 36 #endif 37 38 private: 39 SkPurgeableImageCache(); 40 41 #ifdef SK_DEBUG 42 SkTDArray<ID> fRecs; 43 int findRec(ID) const; 44 #endif 45 void removeRec(ID); 46 }; 47 #endif // SkPurgeableImageCache_DEFINED 48
