BufferProducerWrapper.h revision f779bb50d9746d9526541c3e6dcdf619cac941b7 
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
23namespace android {
24
25// Can't use static_cast to cast a RefBase back to an IGraphicBufferProducer,
26// because IGBP's parent (IInterface) uses virtual inheritance.  This class
27// wraps IGBP while we pass it through AMessage.
28
29struct BufferProducerWrapper : RefBase {
30    BufferProducerWrapper(
31            const sp<IGraphicBufferProducer>& bufferProducer) :
32        mBufferProducer(bufferProducer) { }
33
34    sp<IGraphicBufferProducer> getBufferProducer() const {
35        return mBufferProducer;
36    }
37
38private:
39    const sp<IGraphicBufferProducer> mBufferProducer;
40
41    DISALLOW_EVIL_CONSTRUCTORS(BufferProducerWrapper);
42};
43
44}  // namespace android
45
46#endif  // BUFFER_PRODUCER_WRAPPER_H_
47