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104 lines
2.4 KiB
104 lines
2.4 KiB
/*
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MicroMDAEPiano
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MicroMDAEPiano is a port of the MDA-EPiano sound engine
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(https://sourceforge.net/projects/mda-vst/) for the Teensy-3.5/3.6 with audio shield.
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(c)2019-2020 H. Wirtz <wirtz@parasitstudio.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//#define ENCODER_DO_NOT_USE_INTERRUPTS
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#include <Encoder.h>
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#include "limits.h"
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#ifndef ENCODER4_H_INCLUDED
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#define ENCODER4_H_INCLUDED
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class Encoder4 : public Encoder
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{
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public:
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//using Encoder::Encoder;
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Encoder4(uint8_t pin1, uint8_t pin2) : Encoder::Encoder(pin1, pin2)
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{
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_min = INT_MIN / 4;
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_max = INT_MAX / 4;
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_wrap_around = false;
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}
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int32_t read()
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{
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int32_t p = Encoder::read();
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if (p / 4 < _min && _wrap_around == false)
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Encoder::write(_min * 4);
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else if (p / 4 < _min && _wrap_around == true)
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Encoder::write(_max * 4);
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else if (p / 4 > _max && _wrap_around == false)
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Encoder::write(_max * 4);
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else if (p / 4 > _max && _wrap_around == true)
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Encoder::write(_min * 4);
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return (Encoder::read() / 4);
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}
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void write(int32_t p)
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{
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Encoder::write(p * 4);
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}
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void write(int32_t p, int32_t min, int32_t max, bool wrap_around = false)
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{
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_wrap_around = wrap_around;
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if (max < min)
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{
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_min = max;
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_max = min;
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}
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else
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{
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_min = min;
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_max = max;
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}
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if (p > _max)
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p = _max;
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else if (p < _min)
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p = _min;
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Encoder::write(p * 4);
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}
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int32_t read_min(void)
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{
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return (_min);
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}
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int32_t read_max(void)
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{
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return (_max);
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}
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private:
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int32_t _min;
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int32_t _max;
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bool _wrap_around;
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};
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#endif
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