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_OVERDRIVEDESCRIPTION_H 17 #define ANDROID_FXLAB_OVERDRIVEDESCRIPTION_H 18 19 #include <limits> 20 #include <cmath> 21 #include <iterator> 22 23 #include "EffectDescription.h" 24 #include "../SingleFunctionEffects.h" 25 #include "../DriveControl.h" 26 27 namespace Effect { 28 class OverdriveDescription : public EffectDescription<OverdriveDescription, 1> { 29 public: getName()30 static constexpr std::string_view getName() { 31 return std::string_view("Overdrive"); 32 } 33 getCategory()34 static constexpr std::string_view getCategory() { 35 return std::string_view("Nonlinear"); 36 } 37 getParams()38 static constexpr std::array<ParamType, getNumParams()> getParams() { 39 return std::array<ParamType, getNumParams()>{ 40 ParamType("Drive (db)", -10, 50, 0) 41 }; 42 } 43 44 template<class iter_type> buildEffect(std::array<float,getNumParams ()> paramArr)45 static _ef<iter_type> buildEffect(std::array<float, getNumParams()> paramArr) { 46 double scale = pow(2.0, paramArr[0] / 10); 47 return DriveControl<iter_type> {SingleFunctionEffects::overdrive<iter_type>, scale}; 48 } 49 }; 50 } 51 #endif //ANDROID_FXLAB_OVERDRIVEDESCRIPTION_H 52