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 23 #define RS_OBJECT_DEBUG 0 24 25 #include <utils/CallStack.h> 26 27 namespace android { 28 namespace renderscript { 29 30 class Context; 31 class OStream; 32 33 // An element is a group of Components that occupies one cell in a structure. 34 class ObjectBase { 35 public: 36 ObjectBase(Context *rsc); 37 38 void incSysRef() const; 39 bool decSysRef() const; 40 41 void incUserRef() const; 42 bool decUserRef() const; 43 bool zeroUserRef() const; 44 45 static bool checkDelete(const ObjectBase *); 46 getName()47 const char * getName() const { 48 return mName.string(); 49 } 50 void setName(const char *); 51 void setName(const char *, uint32_t len); 52 getContext()53 Context * getContext() const {return mRSC;} 54 virtual bool freeChildren(); 55 56 static void zeroAllUserRef(Context *rsc); 57 static void freeAllChildren(Context *rsc); 58 static void dumpAll(Context *rsc); 59 60 virtual void dumpLOGV(const char *prefix) const; 61 virtual void serialize(Context *rsc, OStream *stream) const = 0; 62 virtual RsA3DClassID getClassId() const = 0; 63 64 static bool isValid(const Context *rsc, const ObjectBase *obj); 65 66 // The async lock is taken during object creation in non-rs threads 67 // and object deletion in the rs thread. 68 static void asyncLock(); 69 static void asyncUnlock(); 70 71 protected: 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 79 private: 80 static pthread_mutex_t gObjectInitMutex; 81 82 void add() const; 83 void remove() const; 84 85 String8 mName; 86 mutable int32_t mSysRefCount; 87 mutable int32_t mUserRefCount; 88 89 mutable const ObjectBase * mPrev; 90 mutable const ObjectBase * mNext; 91 92 #if RS_OBJECT_DEBUG 93 CallStack mStack; 94 #endif 95 96 }; 97 98 template<class T> 99 class ObjectBaseRef { 100 public: ObjectBaseRef()101 ObjectBaseRef() { 102 mRef = NULL; 103 } 104 ObjectBaseRef(const ObjectBaseRef & ref)105 ObjectBaseRef(const ObjectBaseRef &ref) { 106 mRef = ref.get(); 107 if (mRef) { 108 mRef->incSysRef(); 109 } 110 } 111 ObjectBaseRef(T * ref)112 ObjectBaseRef(T *ref) { 113 mRef = ref; 114 if (mRef) { 115 ref->incSysRef(); 116 } 117 } 118 119 ObjectBaseRef & operator= (const ObjectBaseRef &ref) { 120 if (&ref != this) { 121 set(ref); 122 } 123 return *this; 124 } 125 ~ObjectBaseRef()126 ~ObjectBaseRef() { 127 clear(); 128 } 129 set(T * ref)130 void set(T *ref) { 131 if (mRef != ref) { 132 clear(); 133 mRef = ref; 134 if (mRef) { 135 ref->incSysRef(); 136 } 137 } 138 } 139 set(const ObjectBaseRef & ref)140 void set(const ObjectBaseRef &ref) { 141 set(ref.mRef); 142 } 143 clear()144 void clear() { 145 if (mRef) { 146 mRef->decSysRef(); 147 } 148 mRef = NULL; 149 } 150 get()151 inline T * get() const { 152 return mRef; 153 } 154 155 inline T * operator-> () const { 156 return mRef; 157 } 158 159 protected: 160 T * mRef; 161 }; 162 163 } 164 } 165 166 #endif //ANDROID_RS_OBJECT_BASE_H 167 168