1 /*
2  * Copyright (C) 2013 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 BUFFER_PRODUCER_WRAPPER_H_
18 
19 #define BUFFER_PRODUCER_WRAPPER_H_
20 
21 #include <gui/IGraphicBufferProducer.h>
22 #include <media/stagefright/foundation/ABase.h>
23 
24 namespace android {
25 
26 // Can't use static_cast to cast a RefBase back to an IGraphicBufferProducer,
27 // because IGBP's parent (IInterface) uses virtual inheritance.  This class
28 // wraps IGBP while we pass it through AMessage.
29 
30 struct BufferProducerWrapper : RefBase {
BufferProducerWrapperBufferProducerWrapper31     BufferProducerWrapper(
32             const sp<IGraphicBufferProducer>& bufferProducer) :
33         mBufferProducer(bufferProducer) { }
34 
getBufferProducerBufferProducerWrapper35     sp<IGraphicBufferProducer> getBufferProducer() const {
36         return mBufferProducer;
37     }
38 
39 private:
40     const sp<IGraphicBufferProducer> mBufferProducer;
41 
42     DISALLOW_EVIL_CONSTRUCTORS(BufferProducerWrapper);
43 };
44 
45 }  // namespace android
46 
47 #endif  // BUFFER_PRODUCER_WRAPPER_H_
48