1 /*
2  * Copyright (c) 2023-2023 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 #ifndef VSYNC_TYPE_H
17 #define VSYNC_TYPE_H
18 
19 #include <cstdint>
20 namespace OHOS {
21 namespace Rosen {
22     constexpr uint32_t VSYNC_MAX_REFRESHRATE = 360; // 360hz at most
23 } // Rosen
24 
25 typedef enum {
26     /*
27     * VSync mode for LTPS indicates the refresh rate of software vsync won't change
28     * without the hardware vsync refresh rate changed.
29     */
30     VSYNC_MODE_LTPS,
31     /*
32     * VSync mode for LTPO indicates the refresh rate of software vsync can be switched
33     * without the hardware vsync refresh rate changed.
34     */
35     VSYNC_MODE_LTPO,
36     /*
37     * Invalid VSync mode.
38     */
39     VSYNC_MODE_INVALID
40 } VSyncMode;
41 } // OHOS
42 
43 #endif // VSYNC_TYPE_H