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MicroDexed/controllers.h

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2.7 KiB

/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __CONTROLLERS_H
#define __CONTROLLERS_H
#include "synth.h"
#include <stdio.h>
#include <string.h>
#include "trace.h"
#ifdef _WIN32
#define snprintf _snprintf
#endif
// State of MIDI controllers
const int kControllerPitch = 0;
const int kControllerPitchRange = 1;
const int kControllerPitchStep = 2;
class FmCore;
struct FmMod {
uint8_t range;
bool pitch;
bool amp;
bool eg;
FmMod() {
range = 0;
pitch = false;
amp = false;
eg = false;
}
void setRange(uint8_t r) {
range = r < 0 && r > 127 ? 0 : r;
TRACE("range=%d",range);
}
void setTarget(uint8_t assign) {
TRACE("Target: %d", assign);
assign=assign < 0 && assign > 7 ? 0 : assign;
pitch=assign&1; // AMP
amp=assign&2; // PITCH
eg=assign&4; // EG
TRACE("pitch[%d] amp[%d] eg[%d]", pitch,amp,eg);
}
};
class Controllers {
void applyMod(int cc, FmMod &mod) {
float range = 0.01 * mod.range;
uint8_t total = (float)cc * range;
TRACE("amp[%d]|pitch[%d]|eg[%d]",mod.amp,mod.pitch,mod.eg);
TRACE("range=%f mod.range=%d total=%d cc=%d",range,mod.range,total,cc);
if(mod.amp)
amp_mod = max(amp_mod, total);
if(mod.pitch)
pitch_mod = max(pitch_mod, total);
if(mod.eg)
eg_mod = max(eg_mod, total);
}
public:
int32_t values_[3];
uint8_t amp_mod;
uint8_t pitch_mod;
uint8_t eg_mod;
uint8_t aftertouch_cc;
uint8_t breath_cc;
uint8_t foot_cc;
uint8_t modwheel_cc;
int masterTune;
uint8_t opSwitch;
FmMod wheel;
FmMod foot;
FmMod breath;
FmMod at;
Controllers() {
amp_mod = 0;
pitch_mod = 0;
eg_mod = 0;
}
void refresh() {
amp_mod=pitch_mod=eg_mod=0;
applyMod(modwheel_cc, wheel);
applyMod(breath_cc, breath);
applyMod(foot_cc, foot);
applyMod(aftertouch_cc, at);
if ( ! ((wheel.eg || foot.eg) || (breath.eg || at.eg)) )
eg_mod = 127;
}
FmCore *core;
};
#endif // __CONTROLLERS_H