Robin E.R. Davies
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/*
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* Copyright (c) Robin E.R. Davies
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* All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#pragma once
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#include "PiPedalMath.hpp"
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namespace pipedal
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{
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class DbDezipper
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{
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public:
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void SetSampleRate(double rate);
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void SetRate(float seconds);
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void Reset(float db = -96);
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void SetMinDb(float db = -96);
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void SetTarget(float db)
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{
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if (db < minDb)
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db = minDb;
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if (db != targetDb)
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{
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targetDb = db;
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count = 0;
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}
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}
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bool IsIdle() const { return count < 0;}
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inline float Tick()
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{
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if (count >= 0)
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{
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if (count-- <= 0)
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{
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NextSegment();
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}
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float result = x;
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x += dx;
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return result;
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}
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return x;
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}
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private:
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float minDb = -96;
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double sampleRate = 44100;
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float rate = 0.1;
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float targetDb = -96;
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float currentDb = -96;
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float targetX = 0;
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float x = 0;
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float dx = 0;
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int32_t count = -1;
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float dbPerSegment;
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void NextSegment();
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};
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} |