| scroggo@google.com | bb281f7 | 2013-03-18 21:37:39 +0000 | [diff] [blame] | 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 |