1 /*
2  * Copyright 2023 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 <ftl/optional.h>
20 #include <scheduler/Time.h>
21 
22 namespace android::scheduler {
23 
24 struct IVsyncSource {
25     virtual Period period() const = 0;
26     virtual TimePoint vsyncDeadlineAfter(TimePoint, ftl::Optional<TimePoint> = {}) const = 0;
27     virtual Period minFramePeriod() const = 0;
28 
29 protected:
30     ~IVsyncSource() = default;
31 };
32 
33 } // namespace android::scheduler
34