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144 lines
2.9 KiB
144 lines
2.9 KiB
/*
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Copyright 2013 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef __CONTROLLERS_H
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#define __CONTROLLERS_H
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#include <Arduino.h>
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#include "synth.h"
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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// State of MIDI controllers
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const int kControllerPitch = 0;
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const int kControllerPitchRange = 1;
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const int kControllerPitchStep = 2;
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class FmCore;
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class FmMod {
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public:
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uint8_t range;
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bool pitch;
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bool amp;
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bool eg;
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uint8_t ctrl_mode;
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uint8_t _dummy_;
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FmMod()
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{
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range = 0;
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ctrl_mode = 0;
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pitch = false;
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amp = false;
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eg = false;
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}
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void setRange(uint8_t r)
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{
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range = r < 0 && r > 99 ? 0 : r;
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}
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void setTarget(uint8_t assign)
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{
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assign = assign < 0 && assign > 7 ? 0 : assign;
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pitch = assign & 1; // PITCH
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amp = assign & 2; // AMP
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eg = assign & 4; // EG
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}
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void setMode(uint8_t m)
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{
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ctrl_mode = m > 1 ? 0 : m;
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}
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};
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class Controllers {
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void applyMod(int cc, FmMod &mod)
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{
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float range;
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uint8_t total;
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range = 0.01 * mod.range;
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switch (mod.ctrl_mode)
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{
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case 0:
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total = (float)cc * range; // NORMAL mode
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break;
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case 1:
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total = (float)(127 - cc) * range; // REVERSE mode
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break;
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case 2:
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total = 100 - range + (float)cc * range / 100; // Special BC mode by opus.quattre
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break;
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}
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if (mod.amp)
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amp_mod = max(amp_mod, total);
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if (mod.pitch)
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pitch_mod = max(pitch_mod, total);
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if (mod.eg)
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eg_mod = max(eg_mod, total);
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}
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public:
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int32_t values_[3];
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uint8_t amp_mod;
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uint8_t pitch_mod;
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uint8_t eg_mod;
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uint8_t aftertouch_cc;
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uint8_t breath_cc;
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uint8_t foot_cc;
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uint8_t modwheel_cc;
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bool portamento_enable_cc;
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int portamento_cc;
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int masterTune;
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uint8_t opSwitch;
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FmMod wheel;
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FmMod foot;
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FmMod breath;
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FmMod at;
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Controllers() {
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amp_mod = 0;
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pitch_mod = 0;
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eg_mod = 0;
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}
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void refresh() {
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amp_mod = pitch_mod = eg_mod = 0;
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applyMod(modwheel_cc, wheel);
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applyMod(breath_cc, breath);
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applyMod(foot_cc, foot);
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applyMod(aftertouch_cc, at);
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if ( ! ((wheel.eg || foot.eg) || (breath.eg || at.eg)) )
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eg_mod = 127;
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}
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FmCore *core;
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};
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#endif // __CONTROLLERS_H
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