1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "soft_vsync.h"
17
18 #include <thread>
19 #include <unistd.h>
20
21 #include <hilog/log.h>
22 #include <vsync_module_c.h>
23
24 namespace {
Log(const char * log)25 void Log(const char* log)
26 {
27 OHOS::HiviewDFX::HiLog::Info({LOG_CORE, 0, "WAYLAND_SERVER"}, "%{public}s", log);
28 }
29 } // namespace
30
GetInstance()31 SoftVsync &SoftVsync::GetInstance()
32 {
33 static SoftVsync instance;
34 return instance;
35 }
36
SoftVsyncThreadMain()37 void SoftVsync::SoftVsyncThreadMain()
38 {
39
40 int32_t ret;
41 do {
42 ret = VsyncModuleStart();
43 } while (ret != 0);
44
45 while (vsyncThreadRunning == true) {
46 VsyncModuleTrigger();
47 usleep(1e6 / 60);
48 }
49 }
50
SoftVsyncStart()51 void SoftVsync::SoftVsyncStart()
52 {
53 if (vsyncThreadRunning == false) {
54 Log("start soft vsync thread");
55 vsyncThreadRunning = true;
56 auto threadMain = std::bind(&SoftVsync::SoftVsyncThreadMain, this);
57 softVsyncThread = std::make_unique<std::thread>(threadMain);
58 }
59 }
60
SoftVsyncStop()61 void SoftVsync::SoftVsyncStop()
62 {
63 if (vsyncThreadRunning != true) {
64 return;
65 } else {
66 Log("stop soft vsync thread");
67 vsyncThreadRunning = false;
68 softVsyncThread->join();
69 }
70 }
71
StartSoftVsyncThread()72 void StartSoftVsyncThread()
73 {
74 SoftVsync::GetInstance().SoftVsyncStart();
75 }
76
StopSoftVsyncThread()77 void StopSoftVsyncThread()
78 {
79 SoftVsync::GetInstance().SoftVsyncStop();
80 }
81