1 2 /* 3 * Copyright 2008 The Android Open Source Project 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 #ifndef SkMallocPixelRef_DEFINED 11 #define SkMallocPixelRef_DEFINED 12 13 #include "SkPixelRef.h" 14 15 /** We explicitly use the same allocator for our pixels that SkMask does, 16 so that we can freely assign memory allocated by one class to the other. 17 */ 18 class SkMallocPixelRef : public SkPixelRef { 19 public: 20 /** Allocate the specified buffer for pixels. The memory is freed when the 21 last owner of this pixelref is gone. If addr is NULL, sk_malloc_throw() 22 is called to allocate it. 23 */ 24 SkMallocPixelRef(void* addr, size_t size, SkColorTable* ctable); 25 virtual ~SkMallocPixelRef(); 26 27 //! Return the allocation size for the pixels 28 size_t getSize() const { return fSize; } 29 void* getAddr() const { return fStorage; } 30 31 // overrides from SkPixelRef 32 virtual void flatten(SkFlattenableWriteBuffer&) const; 33 virtual Factory getFactory() const { 34 return Create; 35 } 36 static SkPixelRef* Create(SkFlattenableReadBuffer& buffer) { 37 return SkNEW_ARGS(SkMallocPixelRef, (buffer)); 38 } 39 40 SK_DECLARE_PIXEL_REF_REGISTRAR() 41 protected: 42 // overrides from SkPixelRef 43 virtual void* onLockPixels(SkColorTable**); 44 virtual void onUnlockPixels(); 45 46 SkMallocPixelRef(SkFlattenableReadBuffer& buffer); 47 48 void* fStorage; 49 50 private: 51 52 size_t fSize; 53 SkColorTable* fCTable; 54 55 typedef SkPixelRef INHERITED; 56 }; 57 58 59 #endif 60
