1 /* 2 * Copyright 2019 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * https://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef ANDROID_FXLAB_DISTORTIONDESCRIPTION_H 17 #define ANDROID_FXLAB_DISTORTIONDESCRIPTION_H 18 19 #include "EffectDescription.h" 20 #include "../SingleFunctionEffects.h" 21 22 namespace Effect { 23 class DistortionDescription: public EffectDescription<DistortionDescription, 1> { 24 public: getName()25 static constexpr std::string_view getName() { 26 return std::string_view("Distortion"); 27 } 28 getCategory()29 static constexpr std::string_view getCategory() { 30 return std::string_view("Nonlinear"); 31 } 32 getParams()33 static constexpr std::array<ParamType, getNumParams()> getParams() { 34 return std::array<ParamType, getNumParams()> { 35 ParamType("Drive (db)", -10, 50, 0) 36 }; 37 } 38 39 template<class iter_type> buildEffect(std::array<float,getNumParams ()> paramArr)40 static _ef<iter_type> buildEffect(std::array<float, getNumParams()> paramArr) { 41 double scale = pow(2.0, paramArr[0] / 10); 42 return DriveControl<iter_type> {SingleFunctionEffects::distortion<iter_type>, scale}; 43 } 44 }; 45 } 46 #endif //ANDROID_FXLAB_DISTORTIONDESCRIPTION_H 47