1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_RS_OBJECT_BASE_H 18#define ANDROID_RS_OBJECT_BASE_H 19 20#include "rsUtils.h" 21#include "rsDefines.h" 22#include "rsDebugHelper.h" 23 24namespace android { 25namespace renderscript { 26 27class Context; 28class OStream; 29 30// An element is a group of Components that occupies one cell in a structure. 31class ObjectBase { 32public: 33 ObjectBase(Context *rsc); 34 35 void incSysRef() const; 36 bool decSysRef() const; 37 38 void incUserRef() const; 39 bool decUserRef() const; 40 bool zeroUserRef() const; 41 42 static bool checkDelete(const ObjectBase *); 43 44 const char * getName() const { 45 return mName; 46 } 47 void assignName(const char *s) {mName = s;} 48 void setName(const char *); 49 void setName(const char *, uint32_t len); 50 51 Context * getContext() const {return mRSC;} 52 virtual bool freeChildren(); 53 54 static void zeroAllUserRef(Context *rsc); 55 static void freeAllChildren(Context *rsc); 56 static void dumpAll(Context *rsc); 57 58 virtual void dumpLOGV(const char *prefix) const; 59 virtual void serialize(Context *rsc, OStream *stream) const = 0; 60 virtual RsA3DClassID getClassId() const = 0; 61 62 static bool isValid(const Context *rsc, const ObjectBase *obj); 63 64 // The async lock is taken during object creation in non-rs threads 65 // and object deletion in the rs thread. 66 static void asyncLock(); 67 static void asyncUnlock(); 68 69 virtual void callUpdateCacheObject(const Context *rsc, void *dstObj) const; 70 71protected: 72 // Called inside the async lock for any object list management that is 73 // necessary in derived classes. 74 virtual void preDestroy() const; 75 76 Context *mRSC; 77 virtual ~ObjectBase(); 78 79private: 80 static pthread_mutex_t gObjectInitMutex; 81 82 void add() const; 83 void remove() const; 84 85 const char* mName; 86 mutable int32_t mSysRefCount; 87 mutable int32_t mUserRefCount; 88 89 mutable const ObjectBase * mPrev; 90 mutable const ObjectBase * mNext; 91 92 DebugHelper *mDH; 93}; 94 95template<class T> 96class ObjectBaseRef { 97public: 98 ObjectBaseRef() { 99 mRef = NULL; 100 } 101 102 ObjectBaseRef(const ObjectBaseRef &ref) { 103 mRef = ref.get(); 104 if (mRef) { 105 mRef->incSysRef(); 106 } 107 } 108 109 ObjectBaseRef(T *ref) { 110 mRef = ref; 111 if (mRef) { 112 ref->incSysRef(); 113 } 114 } 115 116 ObjectBaseRef & operator= (const ObjectBaseRef &ref) { 117 if (&ref != this) { 118 set(ref); 119 } 120 return *this; 121 } 122 123 ~ObjectBaseRef() { 124 clear(); 125 } 126 127 void set(T *ref) { 128 if (mRef != ref) { 129 clear(); 130 mRef = ref; 131 if (mRef) { 132 ref->incSysRef(); 133 } 134 } 135 } 136 137 void set(const ObjectBaseRef &ref) { 138 set(ref.mRef); 139 } 140 141 void clear() { 142 if (mRef) { 143 mRef->decSysRef(); 144 } 145 mRef = NULL; 146 } 147 148 inline T * get() const { 149 return mRef; 150 } 151 152 inline T * operator-> () const { 153 return mRef; 154 } 155 156protected: 157 T * mRef; 158}; 159 160} 161} 162 163#endif //ANDROID_RS_OBJECT_BASE_H 164 165