rsObjectBase.h revision c21cf40f6ae69091bf24f87b5eeabc95e73dd271 
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
23namespace android {
24namespace renderscript {
25
26class Context;
27
28// An element is a group of Components that occupies one cell in a structure.
29class ObjectBase
30{
31public:
32    ObjectBase(Context *rsc);
33    virtual ~ObjectBase();
34
35    void incSysRef() const;
36    bool decSysRef() const;
37
38    void incUserRef() const;
39    bool decUserRef() const;
40    bool zeroUserRef() const;
41
42    const char * getName() const {
43        return mName;
44    }
45    void setName(const char *);
46    void setName(const char *, uint32_t len);
47
48    Context * getContext() const {return mRSC;}
49    void setContext(Context *);
50
51    static void zeroAllUserRef(Context *rsc);
52    static void dumpAll(Context *rsc);
53
54    virtual void dumpLOGV(const char *prefix) const;
55
56protected:
57    const char *mAllocFile;
58    uint32_t mAllocLine;
59
60private:
61    void add() const;
62    void remove() const;
63
64    bool checkDelete() const;
65
66    char * mName;
67    Context *mRSC;
68    mutable int32_t mSysRefCount;
69    mutable int32_t mUserRefCount;
70
71    mutable const ObjectBase * mPrev;
72    mutable const ObjectBase * mNext;
73};
74
75template<class T>
76class ObjectBaseRef
77{
78public:
79    ObjectBaseRef() {
80        mRef = NULL;
81    }
82
83    ObjectBaseRef(const ObjectBaseRef &ref) {
84        mRef = ref.get();
85        if (mRef) {
86            mRef->incSysRef();
87        }
88    }
89
90    ObjectBaseRef(T *ref) {
91        mRef = ref;
92        if (mRef) {
93            ref->incSysRef();
94        }
95    }
96
97    ~ObjectBaseRef() {
98        clear();
99    }
100
101    void set(T *ref) {
102        if (mRef != ref) {
103            clear();
104            mRef = ref;
105            if (mRef) {
106                ref->incSysRef();
107            }
108        }
109    }
110
111    void set(const ObjectBaseRef &ref) {
112        set(ref.mRef);
113    }
114
115    void clear() {
116        if (mRef) {
117            mRef->decSysRef();
118        }
119        mRef = NULL;
120    }
121
122    inline T * get() const {
123        return mRef;
124    }
125
126    inline T * operator-> () const {
127        return mRef;
128    }
129
130protected:
131    T * mRef;
132
133};
134
135
136}
137}
138
139#endif //ANDROID_RS_OBJECT_BASE_H
140
141