rsObjectBase.h revision 9397e30ce5fe3f6af9212a93b490836b04fdfffa 
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
26// An element is a group of Components that occupies one cell in a structure.
27class ObjectBase
28{
29public:
30    ObjectBase();
31    virtual ~ObjectBase();
32
33    void incSysRef() const;
34    void decSysRef() const;
35
36    void incUserRef() const;
37    void decUserRef() const;
38
39    const char * getName() const {
40        return mName;
41    }
42    void setName(const char *);
43    void setName(const char *, uint32_t len);
44
45private:
46    char * mName;
47    mutable int32_t mSysRefCount;
48    mutable int32_t mUserRefCount;
49
50
51};
52
53template<class T>
54class ObjectBaseRef
55{
56public:
57    ObjectBaseRef() {
58        mRef = NULL;
59    }
60
61    ObjectBaseRef(const ObjectBaseRef &ref) {
62        mRef = ref.get();
63        if (mRef) {
64            mRef->incSysRef();
65        }
66    }
67
68    ObjectBaseRef(T *ref) {
69        mRef = ref;
70        if (mRef) {
71            ref->incSysRef();
72        }
73    }
74
75    ~ObjectBaseRef() {
76        clear();
77    }
78
79    void set(T *ref) {
80        if (mRef != ref) {
81            clear();
82            mRef = ref;
83            if (mRef) {
84                ref->incSysRef();
85            }
86        }
87    }
88
89    void set(const ObjectBaseRef &ref) {
90        set(ref.mRef);
91    }
92
93    void clear() {
94        if (mRef) {
95            mRef->decSysRef();
96        }
97        mRef = NULL;
98    }
99
100    inline T * get() const {
101        return mRef;
102    }
103
104    inline T * operator-> () const {
105        return mRef;
106    }
107
108protected:
109    T * mRef;
110
111};
112
113
114}
115}
116
117#endif //ANDROID_RS_OBJECT_BASE_H
118
119