furnace/src/engine/platform/powernoise.h

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2024 tildearrow and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _POWER_NOISE_H
#define _POWER_NOISE_H
#include "../dispatch.h"
#include "../../fixedQueue.h"
#include "../../../extern/pwrnoise/pwrnoise.h"
class DivPlatformPowerNoise: public DivDispatch {
struct SlopePortion {
unsigned char len, offset;
bool clip, reset, dir;
SlopePortion():
len(0),
offset(0),
clip(false),
reset(false),
dir(false) {}
};
struct Channel: public SharedChannel<signed char> {
unsigned char octave, pan, tapA, tapB;
bool slope, am, tapBEnable, keyOn, keyOff;
SlopePortion slopeA, slopeB;
Channel():
SharedChannel<signed char>(15),
octave(0),
pan(255),
tapA(0),
tapB(0),
slope(false),
am(false),
tapBEnable(false),
keyOn(false),
keyOff(false),
slopeA(),
slopeB() {}
};
Channel chan[4];
DivDispatchOscBuffer* oscBuf[4];
bool isMuted[4];
unsigned char regPool[32];
FixedQueue<int16_t,64> queueLeft;
FixedQueue<int16_t,64> queueRight;
power_noise_t pn;
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
public:
void acquire(short** buf, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivMacroInt* getChanMacroInt(int ch);
unsigned short getPan(int chan);
DivChannelModeHints getModeHints(int chan);
DivSamplePos getSamplePos(int ch);
DivDispatchOscBuffer* getOscBuffer(int chan);
int mapVelocity(int ch, float vel);
unsigned char* getRegisterPool();
int getRegisterPoolSize();
void reset();
void forceIns();
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
int getOutputCount();
bool keyOffAffectsArp(int ch);
void setFlags(const DivConfig& flags);
void notifyWaveChange(int wave);
void notifyInsDeletion(void* ins);
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char** getRegisterSheet();
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
void quit();
~DivPlatformPowerNoise();
};
#endif