1 /*
2  * Copyright (c) 2021-2022 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 OHOS_CAMERA_CUBIC_BEZIER_H
17 #define OHOS_CAMERA_CUBIC_BEZIER_H
18 
19 #include "izoom_algorithm.h"
20 
21 namespace OHOS {
22 namespace CameraStandard {
23 class CubicBezier : public IZoomAlgorithm {
24 public:
25     CubicBezier() = default;
26     ~CubicBezier() = default;
27 
28     std::vector<float> GetZoomArray(const float& currentZoom, const float& targetZoom,
29         const float& frameInterval) override;
30 
31 private:
32     static float GetDuration(const float& currentZoom, const float& targetZoom);
33 
34     static float GetCubicBezierY(const float& time);
35 
36     static float GetCubicBezierX(const float& time);
37 
38     static float BinarySearch(const float& value);
39 
40     static float GetInterpolation(const float& input);
41 };
42 } // namespace CameraStandard
43 } // namespace OHOS
44 #endif // OHOS_CAMERA_CUBIC_BEZIER_H