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 24 namespace android { 25 namespace renderscript { 26 27 class Context; 28 class OStream; 29 30 // An element is a group of Components that occupies one cell in a structure. 31 class ObjectBase { 32 public: 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 getName()44 const char * getName() const { 45 return mName; 46 } assignName(const char * s)47 void assignName(const char *s) {mName = s;} 48 void setName(const char *); 49 void setName(const char *, uint32_t len); 50 getContext()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 protected: 70 // Called inside the async lock for any object list management that is 71 // necessary in derived classes. 72 virtual void preDestroy() const; 73 74 Context *mRSC; 75 virtual ~ObjectBase(); 76 77 private: 78 static pthread_mutex_t gObjectInitMutex; 79 80 void add() const; 81 void remove() const; 82 83 const char* mName; 84 mutable int32_t mSysRefCount; 85 mutable int32_t mUserRefCount; 86 87 mutable const ObjectBase * mPrev; 88 mutable const ObjectBase * mNext; 89 90 DebugHelper *mDH; 91 }; 92 93 template<class T> 94 class ObjectBaseRef { 95 public: ObjectBaseRef()96 ObjectBaseRef() { 97 mRef = NULL; 98 } 99 ObjectBaseRef(const ObjectBaseRef & ref)100 ObjectBaseRef(const ObjectBaseRef &ref) { 101 mRef = ref.get(); 102 if (mRef) { 103 mRef->incSysRef(); 104 } 105 } 106 ObjectBaseRef(T * ref)107 ObjectBaseRef(T *ref) { 108 mRef = ref; 109 if (mRef) { 110 ref->incSysRef(); 111 } 112 } 113 114 ObjectBaseRef & operator= (const ObjectBaseRef &ref) { 115 if (&ref != this) { 116 set(ref); 117 } 118 return *this; 119 } 120 ~ObjectBaseRef()121 ~ObjectBaseRef() { 122 clear(); 123 } 124 set(T * ref)125 void set(T *ref) { 126 if (mRef != ref) { 127 clear(); 128 mRef = ref; 129 if (mRef) { 130 ref->incSysRef(); 131 } 132 } 133 } 134 set(const ObjectBaseRef & ref)135 void set(const ObjectBaseRef &ref) { 136 set(ref.mRef); 137 } 138 clear()139 void clear() { 140 if (mRef) { 141 mRef->decSysRef(); 142 } 143 mRef = NULL; 144 } 145 get()146 inline T * get() const { 147 return mRef; 148 } 149 150 inline T * operator-> () const { 151 return mRef; 152 } 153 154 protected: 155 T * mRef; 156 }; 157 158 } 159 } 160 161 #endif //ANDROID_RS_OBJECT_BASE_H 162 163