1/*
2// Copyright (c) 2014 Intel Corporation 
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#ifndef __VSYNC_EVENT_OBSERVER_H__
17#define __VSYNC_EVENT_OBSERVER_H__
18
19#include <common/base/SimpleThread.h>
20#include <IVsyncControl.h>
21
22namespace android {
23namespace intel {
24
25class PhysicalDevice;
26
27class VsyncEventObserver {
28public:
29    VsyncEventObserver(PhysicalDevice& disp);
30    virtual ~VsyncEventObserver();
31
32public:
33    virtual bool initialize();
34    virtual void deinitialize();
35    bool control(bool enabled);
36
37private:
38    mutable Mutex mLock;
39    Condition mCondition;
40    PhysicalDevice& mDisplayDevice;
41    IVsyncControl *mVsyncControl;
42    int  mDevice;
43    bool mEnabled;
44    bool mExitThread;
45    bool mInitialized;
46
47private:
48    DECLARE_THREAD(VsyncEventPollThread, VsyncEventObserver);
49};
50
51} // namespace intel
52} // namespace android
53
54
55
56#endif /* __VSYNC_EVENT_OBSERVER_H__ */
57