1 /*
2 * Copyright (C) 2018 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 #include "mock/MockDispSync.h"
18 #include <thread>
19
20 using namespace std::chrono_literals;
21 namespace android {
22 namespace mock {
23
24 // Explicit default instantiation is recommended.
25 DispSync::DispSync() = default;
26 DispSync::~DispSync() = default;
27
addEventListener(const char *,nsecs_t phase,Callback * callback,nsecs_t)28 status_t DispSync::addEventListener(const char* /*name*/, nsecs_t phase, Callback* callback,
29 nsecs_t /*lastCallbackTime*/) {
30 if (mCallback.callback != nullptr) {
31 return BAD_VALUE;
32 }
33
34 mCallback = {callback, phase};
35 return NO_ERROR;
36 }
removeEventListener(Callback * callback,nsecs_t *)37 status_t DispSync::removeEventListener(Callback* callback, nsecs_t* /*outLastCallback*/) {
38 if (mCallback.callback != callback) {
39 return BAD_VALUE;
40 }
41
42 mCallback = {nullptr, 0};
43 return NO_ERROR;
44 }
45
changePhaseOffset(Callback * callback,nsecs_t phase)46 status_t DispSync::changePhaseOffset(Callback* callback, nsecs_t phase) {
47 if (mCallback.callback != callback) {
48 return BAD_VALUE;
49 }
50
51 mCallback.phase = phase;
52 return NO_ERROR;
53 }
54
triggerCallback()55 void DispSync::triggerCallback() {
56 if (mCallback.callback == nullptr) return;
57
58 const std::chrono::nanoseconds now = std::chrono::steady_clock::now().time_since_epoch();
59 const auto expectedVSyncTime = now + 16ms;
60 mCallback.callback->onDispSyncEvent(now.count(), expectedVSyncTime.count());
61 }
62
63 } // namespace mock
64 } // namespace android
65