1 /*
2  * Copyright (c) 2020-2021 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 #ifndef GRAPHIC_LITE_HAL_TICK_H
17 #define GRAPHIC_LITE_HAL_TICK_H
18 
19 #include <cstdint>
20 
21 #include "gfx_utils/heap_base.h"
22 
23 namespace OHOS {
24 /** @brief Class for calculate the time. */
25 class HALTick : public HeapBase {
26 public:
27     /**
28      * Gets the instance
29      *
30      * @returns The instance.
31      */
32     static HALTick& GetInstance();
33 
34     /**
35      * Gets the milliseconds since start up
36      *
37      * @returns The elapsed time.
38      */
39     uint32_t GetTime();
40 
41     /**
42      * Gets elapse milliseconds since the startTime
43      *
44      * @param startTime The start time.
45      *
46      * @returns The elapse time.
47      */
48     uint32_t GetElapseTime(uint32_t startTime);
49 
50 private:
51     /** Default constructor */
HALTick()52     HALTick() {}
53     /** Destructor */
~HALTick()54     ~HALTick() {}
55     static constexpr uint32_t MILLISEC_TO_NANOSEC = 1000000;
56     static constexpr uint16_t SEC_TO_MILLISEC = 1000;
57 };
58 } // namespace OHOS
59 #endif // GRAPHIC_LITE_HAL_TICK_H
60