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142 lines
2.9 KiB
142 lines
2.9 KiB
/*
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MicroDexed
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MicroDexed is a port of the Dexed sound engine
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(https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
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Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
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(c)2018 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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#ifndef SOFTEN_VALUE_H_INCLUDED
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#define SOFTEN_VALUE_H_INCLUDED 1
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template <class T>
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class SoftenValue
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{
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public:
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init(T value, T minimum, T maximum)
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{
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_from = value;
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_to = value;
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_steps = 0;
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_diff = 0.0;
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_min = minimum;
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_max = maximum;
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}
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void update(T to, uint16_t steps)
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{
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_to = to;
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_steps = steps;
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_calculate();
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}
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void update_to(T to)
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{
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_to = to;
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_calculate();
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}
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void update_steps(uint16_t steps)
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{
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_steps = steps;
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_calculate();
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}
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void tick(void)
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{
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if (_steps > 0)
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{
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_from -= _diff;
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_steps--;
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#ifdef DEBUG
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Serial.print(F("Steps: "));
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Serial.print(_steps, DEC);
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Serial.print(F(" Diff="));
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Serial.println(_diff, 5);
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#endif
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}
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}
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bool running(void)
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{
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if (_steps > 0)
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return (true);
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else
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return (false);
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}
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uint16_t steps(void)
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{
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return (_steps);
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}
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T diff(void)
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{
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return (_diff);
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}
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T value(void)
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{
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if (_steps == 0)
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return (_to);
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if (_from < _min)
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_from = _min;
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else if (_from > _max)
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_from = _max;
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if (std::is_same<T, float>::value)
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return (_from);
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else
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return (round(_from));
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}
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protected:
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float _from;
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float _to;
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uint16_t _steps;
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float _diff;
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T _min;
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T _max;
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void _calculate(void)
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{
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if (_from == _to || _steps <= 0)
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{
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_steps = 0;
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_diff = 0.0;
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}
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else
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_diff = (_from - _to) / _steps;
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#ifdef DEBUG
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Serial.print(F("Update SoftenValue: from="));
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Serial.print(_from, 5);
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Serial.print(F(" to="));
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Serial.print(_to, 5);
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Serial.print(F(" diff="));
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Serial.print(_diff, 5);
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Serial.print(F(" steps="));
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Serial.println(_steps, DEC);
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#endif
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}
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};
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#endif
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