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_INTERPOLATOR_H 17 #define RENDER_SERVICE_CLIENT_CORE_ANIMATION_RS_INTERPOLATOR_H 18 19 #include <cmath> 20 #include <functional> 21 #include <memory> 22 #include <vector> 23 24 #include "common/rs_macros.h" 25 26 #include <parcel.h> 27 #include <refbase.h> 28 29 #include "common/rs_macros.h" 30 31 namespace OHOS { 32 namespace Rosen { 33 34 enum InterpolatorType : uint16_t { 35 LINEAR = 1, 36 CUSTOM, 37 CUBIC_BEZIER, 38 SPRING, 39 STEPS, 40 }; 41 42 class RSInterpolator : public Parcelable { 43 public: 44 static RSB_EXPORT const std::shared_ptr<RSInterpolator> DEFAULT; 45 RSInterpolator() = default; 46 virtual ~RSInterpolator() = default; 47 48 virtual bool Marshalling(Parcel& parcel) const override = 0; 49 static RSB_EXPORT RSInterpolator* Unmarshalling(Parcel& parcel); 50 51 virtual float Interpolate(float input) const = 0; 52 }; 53 54 class LinearInterpolator : public RSInterpolator { 55 public: 56 LinearInterpolator() = default; 57 virtual ~LinearInterpolator() = default; 58 Marshalling(Parcel & parcel)59 bool Marshalling(Parcel& parcel) const override 60 { 61 if (!parcel.WriteUint16(InterpolatorType::LINEAR)) { 62 return false; 63 } 64 return true; 65 } 66 Interpolate(float input)67 float Interpolate(float input) const override 68 { 69 return input; 70 } 71 }; 72 73 class RSB_EXPORT RSCustomInterpolator : public RSInterpolator { 74 public: 75 RSCustomInterpolator(const std::function<float(float)>& func, int duration); 76 virtual ~RSCustomInterpolator() = default; 77 78 float Interpolate(float input) const override; 79 Marshalling(Parcel & parcel)80 bool Marshalling(Parcel& parcel) const override 81 { 82 if (!(parcel.WriteUint16(InterpolatorType::CUSTOM) && parcel.WriteFloatVector(times_) && 83 parcel.WriteFloatVector(values_))) { 84 return false; 85 } 86 return true; 87 } 88 static RSCustomInterpolator* Unmarshalling(Parcel& parcel); 89 90 private: 91 RSCustomInterpolator(const std::vector<float>&& times, const std::vector<float>&& values); 92 void Convert(int duration); 93 94 std::vector<float> times_; 95 std::vector<float> values_; 96 std::function<float(float)> interpolateFunc_; 97 }; 98 } // namespace Rosen 99 } // namespace OHOS 100 101 #endif // RENDER_SERVICE_CLIENT_CORE_ANIMATION_RS_INTERPOLATOR_H 102