1 #ifndef SkImageRefPool_DEFINED 2 #define SkImageRefPool_DEFINED 3 4 #include "SkTypes.h" 5 6 class SkImageRef; 7 class SkImageRef_GlobalPool; 8 9 class SkImageRefPool { 10 public: 11 SkImageRefPool(); 12 ~SkImageRefPool(); 13 14 size_t getRAMBudget() const { return fRAMBudget; } 15 void setRAMBudget(size_t); 16 17 size_t getRAMUsed() const { return fRAMUsed; } 18 void setRAMUsed(size_t limit); 19 20 void addToHead(SkImageRef*); 21 void addToTail(SkImageRef*); 22 void detach(SkImageRef*); 23 24 void dump() const; 25 26 private: 27 size_t fRAMBudget; 28 size_t fRAMUsed; 29 30 int fCount; 31 SkImageRef* fHead, *fTail; 32 33 int computeCount() const; 34 35 friend class SkImageRef_GlobalPool; 36 37 void justAddedPixels(SkImageRef*); 38 void canLosePixels(SkImageRef*); 39 void purgeIfNeeded(); 40 }; 41 42 #endif 43 44
