MonitoredProducer.h revision b9b088375d33a87b201cdbe18be71802e2607717 
1/*
2 * Copyright 2014 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_MONITORED_PRODUCER_H
18#define ANDROID_MONITORED_PRODUCER_H
19
20#include <gui/IGraphicBufferProducer.h>
21
22namespace android {
23
24class IBinder;
25class NativeHandle;
26class SurfaceFlinger;
27
28// MonitoredProducer wraps an IGraphicBufferProducer so that SurfaceFlinger will
29// be notified upon its destruction
30class MonitoredProducer : public BnGraphicBufferProducer {
31public:
32    MonitoredProducer(const sp<BnGraphicBufferProducer>& producer,
33            const sp<SurfaceFlinger>& flinger);
34    virtual ~MonitoredProducer();
35
36    // From IGraphicBufferProducer
37    virtual status_t requestBuffer(int slot, sp<GraphicBuffer>* buf);
38    virtual status_t setBufferCount(int bufferCount);
39    virtual status_t dequeueBuffer(int* slot, sp<Fence>* fence, bool async,
40            uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
41    virtual status_t detachBuffer(int slot);
42    virtual status_t attachBuffer(int* outSlot,
43            const sp<GraphicBuffer>& buffer);
44    virtual status_t queueBuffer(int slot, const QueueBufferInput& input,
45            QueueBufferOutput* output);
46    virtual void cancelBuffer(int slot, const sp<Fence>& fence);
47    virtual int query(int what, int* value);
48    virtual status_t connect(const sp<IBinder>& token, int api,
49            bool producerControlledByApp, QueueBufferOutput* output);
50    virtual status_t disconnect(int api);
51    virtual status_t setSidebandStream(const sp<NativeHandle>& stream);
52
53private:
54    sp<BnGraphicBufferProducer> mProducer;
55    sp<SurfaceFlinger> mFlinger;
56};
57
58}; // namespace android
59
60#endif // ANDROID_MONITORED_PRODUCER_H
61