1 /*
2  * Copyright (c) 2021-2023 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 RENDER_SERVICE_CLIENT_CORE_ANIMATION_RS_CUBIC_BEZIER_INTERPOLATOR_H
17 #define RENDER_SERVICE_CLIENT_CORE_ANIMATION_RS_CUBIC_BEZIER_INTERPOLATOR_H
18 
19 #include <cinttypes>
20 
21 #include "animation/rs_interpolator.h"
22 #include "common/rs_common_def.h"
23 
24 namespace OHOS {
25 namespace Rosen {
26 class RSB_EXPORT RSCubicBezierInterpolator : public RSInterpolator {
27 public:
28     RSCubicBezierInterpolator(float ctlX1, float ctlY1, float ctlX2, float ctlY2);
29     ~RSCubicBezierInterpolator() override = default;
30 
31     float InterpolateImpl(float input) const override;
32 
33     bool Marshalling(Parcel& parcel) const override;
34     [[nodiscard]] static RSCubicBezierInterpolator* Unmarshalling(Parcel& parcel);
35 
GetType()36     InterpolatorType GetType() override { return InterpolatorType::CUBIC_BEZIER; }
37 private:
38     RSCubicBezierInterpolator(uint64_t id, float ctlX1, float ctlY1, float ctlX2, float ctlY2);
39 
40     int BinarySearch(float key) const;
41 
42     constexpr static int MAX_RESOLUTION = 4000;
43     constexpr static float SEARCH_STEP = 1.0f / MAX_RESOLUTION;
44 
45     float controlX1_ { 0.0 };
46     float controlY1_ { 0.0 };
47     float controlX2_ { 0.0 };
48     float controlY2_ { 0.0 };
49 };
50 } // namespace Rosen
51 } // namespace OHOS
52 
53 #endif // RENDER_SERVICE_CLIENT_CORE_ANIMATION_RS_CUBIC_BEZIER_INTERPOLATOR_H
54