1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef SK_REF_CNT_EXT_DEBUG_H_ 6#define SK_REF_CNT_EXT_DEBUG_H_ 7 8#ifdef SK_REF_CNT_EXT_RELEASE_H_ 9#error Only one SkRefCnt should be used. 10#endif 11 12// Alternate implementation of SkRefCnt for Chromium debug builds 13class SK_API SkRefCnt : public SkRefCntBase { 14public: 15 SkRefCnt() : flags_(0) {} 16 void ref() const { SkASSERT(flags_ != AdoptionRequired_Flag); SkRefCntBase::ref(); } 17 void adopted() const { flags_ |= Adopted_Flag; } 18 void requireAdoption() const { flags_ |= AdoptionRequired_Flag; } 19 void deref() const { SkRefCntBase::unref(); } 20private: 21 enum { 22 Adopted_Flag = 0x1, 23 AdoptionRequired_Flag = 0x2, 24 }; 25 26 mutable int flags_; 27}; 28 29// Bootstrap for Blink's WTF::RefPtr 30 31namespace WTF { 32 inline void adopted(const SkRefCnt* object) { 33 if (!object) 34 return; 35 object->adopted(); 36 } 37 inline void requireAdoption(const SkRefCnt* object) { 38 if (!object) 39 return; 40 object->requireAdoption(); 41 } 42}; 43 44using WTF::adopted; 45using WTF::requireAdoption; 46 47#endif 48 49