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 "native_vsync.h"
17
18#include <iostream>
19#include <thread>
20#include <unistd.h>
21
22static bool flag = false;
23static void OnVSync(long long timestamp, void* data)
24{
25    flag = true;
26    std::cout << "OnVSync: " << timestamp << std::endl;
27}
28
29static void ThreadMain(OH_NativeVSync* nativeVSync)
30{
31    OH_NativeVSync_FrameCallback callback = OnVSync;
32    OH_NativeVSync_RequestFrame(nativeVSync, callback, nullptr);
33    while (!flag) {
34        std::cout << "wait for vsync!\n";
35        sleep(1);
36    }
37    std::cout << "vsync come, end this thread\n";
38}
39int32_t main(int32_t argc, const char *argv[])
40{
41    char name[] = "hello_vsync";
42    OH_NativeVSync* nativeVSync = OH_NativeVSync_Create(name, strlen(name));
43    std::thread th(ThreadMain, nativeVSync);
44    th.join();
45    OH_NativeVSync_Destroy(nativeVSync);
46    return 0;
47}