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 22 #define RS_OBJECT_DEBUG 0 23 24 #include <utils/CallStack.h> 25 26 namespace android { 27 namespace renderscript { 28 29 class Context; 30 class OStream; 31 32 // An element is a group of Components that occupies one cell in a structure. 33 class ObjectBase { 34 public: 35 ObjectBase(Context *rsc); 36 37 void incSysRef() const; 38 bool decSysRef() const; 39 40 void incUserRef() const; 41 bool decUserRef() const; 42 bool zeroUserRef() const; 43 44 static bool checkDelete(const ObjectBase *); 45 getName()46 const char * getName() const { 47 return mName.string(); 48 } 49 void setName(const char *); 50 void setName(const char *, uint32_t len); 51 getContext()52 Context * getContext() const {return mRSC;} 53 virtual bool freeChildren(); 54 55 static void zeroAllUserRef(Context *rsc); 56 static void freeAllChildren(Context *rsc); 57 static void dumpAll(Context *rsc); 58 59 virtual void dumpLOGV(const char *prefix) const; 60 virtual void serialize(OStream *stream) const = 0; 61 virtual RsA3DClassID getClassId() const = 0; 62 63 static bool isValid(const Context *rsc, const ObjectBase *obj); 64 65 // The async lock is taken during object creation in non-rs threads 66 // and object deletion in the rs thread. 67 static void asyncLock(); 68 static void asyncUnlock(); 69 70 protected: 71 // Called inside the async lock for any object list management that is 72 // necessary in derived classes. 73 virtual void preDestroy() const; 74 75 Context *mRSC; 76 virtual ~ObjectBase(); 77 78 private: 79 static pthread_mutex_t gObjectInitMutex; 80 81 void add() const; 82 void remove() const; 83 84 String8 mName; 85 mutable int32_t mSysRefCount; 86 mutable int32_t mUserRefCount; 87 88 mutable const ObjectBase * mPrev; 89 mutable const ObjectBase * mNext; 90 91 #if RS_OBJECT_DEBUG 92 CallStack mStack; 93 #endif 94 95 }; 96 97 template<class T> 98 class ObjectBaseRef { 99 public: ObjectBaseRef()100 ObjectBaseRef() { 101 mRef = NULL; 102 } 103 ObjectBaseRef(const ObjectBaseRef & ref)104 ObjectBaseRef(const ObjectBaseRef &ref) { 105 mRef = ref.get(); 106 if (mRef) { 107 mRef->incSysRef(); 108 } 109 } 110 ObjectBaseRef(T * ref)111 ObjectBaseRef(T *ref) { 112 mRef = ref; 113 if (mRef) { 114 ref->incSysRef(); 115 } 116 } 117 118 ObjectBaseRef & operator= (const ObjectBaseRef &ref) { 119 if (&ref != this) { 120 set(ref); 121 } 122 return *this; 123 } 124 ~ObjectBaseRef()125 ~ObjectBaseRef() { 126 clear(); 127 } 128 set(T * ref)129 void set(T *ref) { 130 if (mRef != ref) { 131 clear(); 132 mRef = ref; 133 if (mRef) { 134 ref->incSysRef(); 135 } 136 } 137 } 138 set(const ObjectBaseRef & ref)139 void set(const ObjectBaseRef &ref) { 140 set(ref.mRef); 141 } 142 clear()143 void clear() { 144 if (mRef) { 145 mRef->decSysRef(); 146 } 147 mRef = NULL; 148 } 149 get()150 inline T * get() const { 151 return mRef; 152 } 153 154 inline T * operator-> () const { 155 return mRef; 156 } 157 158 protected: 159 T * mRef; 160 }; 161 162 } 163 } 164 165 #endif //ANDROID_RS_OBJECT_BASE_H 166 167