1 /*
2  * Copyright 2022 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 #pragma once
18 
19 #include <gui/Surface.h>
20 #include <hardware/tv_input.h>
21 #include <utils/Thread.h>
22 
23 namespace android {
24 
25 class BufferProducerThread : public Thread {
26 public:
27     BufferProducerThread(tv_input_device_t* device, int deviceId, const tv_stream_t* stream);
28 
29     virtual status_t readyToRun();
30 
31     void setSurface(const sp<Surface>& surface);
32     void onCaptured(uint32_t seq, bool succeeded);
33     void shutdown();
34 
35 private:
36     Mutex mLock;
37     Condition mCondition;
38     sp<Surface> mSurface;
39     tv_input_device_t* mDevice;
40     int mDeviceId;
41     tv_stream_t mStream;
42     sp<ANativeWindowBuffer_t> mBuffer;
43     enum {
44         CAPTURING,
45         CAPTURED,
46         RELEASED,
47     } mBufferState;
48     uint32_t mSeq;
49     bool mShutdown;
50 
51     virtual bool threadLoop();
52 
53     void setSurfaceLocked(const sp<Surface>& surface);
54 };
55 
56 } // namespace android
57