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Merge pull request #1047 from tildearrow/k053260

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Add K053260 support
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tildearrow 2023-07-17 15:10:07 -05:00 • committed by GitHub
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src/engine/platform/k053260.cpp Normal file
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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2023 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.
*/
#include "k053260.h"
#include "../engine.h"
#include "../../ta-log.h"
#include <math.h>
#define rWrite(a,v) {if(!skipRegisterWrites) {k053260.write(a,v); regPool[a]=v; if(dumpWrites) addWrite(a,v);}}
#define CHIP_DIVIDER 16
#define TICK_DIVIDER 64 // for match to YM3012 output rate
const char* regCheatSheetK053260[]={
"MainToSub0", "00",
"MainToSub1", "01",
"SubToMain0", "02",
"SubToMain1", "03",
"CHx_FreqL", "08+x*8",
"CHx_FreqH", "09+x*8",
"CHx_LengthL", "0A+x*8",
"CHx_LengthH", "0B+x*8",
"CHx_StartL", "0C+x*8",
"CHx_StartM", "0D+x*8",
"CHx_StartH", "0E+x*8",
"CHx_Volume", "0F+x*8",
"KeyOn", "28",
"Status", "29",
"LoopFormat", "2A",
"Test", "2B",
"CH01_Pan", "2C",
"CH23_Pan", "2D",
"ROMReadback", "2E",
"Control", "2F",
NULL
};
const char** DivPlatformK053260::getRegisterSheet() {
return regCheatSheetK053260;
}
inline void DivPlatformK053260::chWrite(unsigned char ch, unsigned int addr, unsigned char val) {
if (!skipRegisterWrites) {
rWrite(8+((ch<<3)|(addr&7)),val);
}
}
u8 DivPlatformK053260::read_sample(u32 address) {
if ((sampleMem!=NULL) && (address<getSampleMemCapacity())) {
return sampleMem[address&0x1fffff];
}
return 0;
}
void DivPlatformK053260::acquire(short** buf, size_t len) {
for (size_t i=0; i<len; i++) {
k053260.tick(TICK_DIVIDER);
int lout=(k053260.output(0)); // scale to 16 bit
int rout=(k053260.output(1)); // scale to 16 bit
if (lout>32767) lout=32767;
if (lout<-32768) lout=-32768;
if (rout>32767) rout=32767;
if (rout<-32768) rout=-32768;
buf[0][i]=lout;
buf[1][i]=rout;
for (int i=0; i<4; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=(k053260.voice_out(i,0)+k053260.voice_out(i,1))>>2;
}
}
}
void DivPlatformK053260::tick(bool sysTick) {
unsigned char panMask=0;
for (int i=0; i<4; i++) {
chan[i].std.next();
if (chan[i].std.vol.had) {
chan[i].outVol=((chan[i].vol&0x7f)*MIN(chan[i].macroVolMul,chan[i].std.vol.val))/chan[i].macroVolMul;
chWrite(i,7,chan[i].outVol);
}
if (NEW_ARP_STRAT) {
chan[i].handleArp();
} else if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
chan[i].baseFreq=NOTE_PERIODIC(parent->calcArp(chan[i].note,chan[i].std.arp.val));
}
chan[i].freqChanged=true;
}
if (chan[i].std.pitch.had) {
if (chan[i].std.pitch.mode) {
chan[i].pitch2+=chan[i].std.pitch.val;
CLAMP_VAR(chan[i].pitch2,-32768,32767);
} else {
chan[i].pitch2=chan[i].std.pitch.val;
}
chan[i].freqChanged=true;
}
if (chan[i].std.panL.had) { // panning
chan[i].panning=4+chan[i].std.panL.val;
if (!isMuted[i]) {
panMask|=1<<i;
}
}
if (chan[i].std.phaseReset.had) {
if (chan[i].std.phaseReset.val==1 && chan[i].active) {
chan[i].audPos=0;
chan[i].setPos=true;
}
}
if (chan[i].setPos) {
// force keyon
chan[i].keyOn=true;
chan[i].setPos=false;
} else {
chan[i].audPos=0;
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
unsigned char keyon=regPool[0x28]|(1<<i);
unsigned char keyoff=keyon&~(17<<i);
unsigned char loopon=regPool[0x2a]|(1<<i);
unsigned char loopoff=loopon&~(1<<i);
double off=1.0;
int sample=chan[i].sample;
if (sample>=0 && sample<parent->song.sampleLen) {
DivSample* s=parent->getSample(sample);
if (s->centerRate<1) {
off=1.0;
} else {
off=8363.0/s->centerRate;
}
}
DivSample* s=parent->getSample(chan[i].sample);
chan[i].freq=0x1000-(int)(off*parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER));
if (chan[i].freq>4095) chan[i].freq=4095;
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].keyOn) {
unsigned int start=0;
unsigned int length=0;
if (chan[i].sample>=0 && chan[i].sample<parent->song.sampleLen) {
start=sampleOffK053260[chan[i].sample];
length=s->length8;
if (chan[i].reverse) {
start+=length;
keyon|=(16<<i);
}
}
if (chan[i].audPos>0) {
if (chan[i].reverse) {
start=start-MIN(chan[i].audPos,s->length8);
}
else {
start=start+MIN(chan[i].audPos,s->length8);
}
length=MAX(1,length-chan[i].audPos);
}
start=MIN(start,getSampleMemCapacity());
length=MIN(65535,MIN(length,getSampleMemCapacity()));
rWrite(0x28,keyoff); // force keyoff first
rWrite(0x2a,loopoff);
chWrite(i,2,length&0xff);
chWrite(i,3,length>>8);
chWrite(i,4,start&0xff);
chWrite(i,5,start>>8);
chWrite(i,6,start>>16);
if (!chan[i].std.vol.had) {
chan[i].outVol=chan[i].vol;
chWrite(i,7,chan[i].outVol);
}
rWrite(0x28,keyon);
if (s->isLoopable()) {
rWrite(0x2a,loopon);
}
chan[i].keyOn=false;
}
if (chan[i].keyOff) {
rWrite(0x28,keyoff);
rWrite(0x2a,loopoff);
chan[i].keyOff=false;
}
if (chan[i].freqChanged) {
chWrite(i,0,chan[i].freq&0xff);
chWrite(i,1,chan[i].freq>>8);
chan[i].freqChanged=false;
}
}
}
if (panMask) {
updatePanning(panMask);
}
}
void DivPlatformK053260::updatePanning(unsigned char mask) {
if (mask&3) {
rWrite(0x2c,
(isMuted[0]?0:chan[0].panning)|
(isMuted[1]?0:chan[1].panning<<3));
}
if (mask&0xc) {
rWrite(0x2d,
(isMuted[2]?0:chan[2].panning)|
(isMuted[3]?0:chan[3].panning<<3));
}
}
int DivPlatformK053260::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_AMIGA);
chan[c.chan].macroVolMul=ins->type==DIV_INS_AMIGA?64:127;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].sample=ins->amiga.getSample(c.value);
c.value=ins->amiga.getFreq(c.value);
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
}
if (chan[c.chan].sample<0 || chan[c.chan].sample>=parent->song.sampleLen) {
chan[c.chan].sample=-1;
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
chan[c.chan].macroInit(ins);
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
}
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].sample=-1;
chan[c.chan].active=false;
chan[c.chan].keyOff=true;
chan[c.chan].macroInit(NULL);
break;
case DIV_CMD_NOTE_OFF_ENV:
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
break;
case DIV_CMD_INSTRUMENT:
if (chan[c.chan].ins!=c.value || c.value2==1) {
chan[c.chan].ins=c.value;
}
break;
case DIV_CMD_VOLUME:
if (chan[c.chan].vol!=c.value) {
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=c.value;
chWrite(c.chan,7,chan[c.chan].outVol);
}
}
break;
case DIV_CMD_GET_VOLUME:
if (chan[c.chan].std.vol.has) {
return chan[c.chan].vol;
}
return chan[c.chan].outVol;
break;
case DIV_CMD_PANNING:
chan[c.chan].panning=MIN(parent->convertPanSplitToLinearLR(c.value,c.value2,7)+1,7);
if (!isMuted[c.chan]) {
updatePanning(1<<c.chan);
}
break;
case DIV_CMD_PITCH:
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
case DIV_CMD_NOTE_PORTA: {
int destFreq=NOTE_PERIODIC(c.value2);
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
chan[c.chan].baseFreq+=c.value;
if (chan[c.chan].baseFreq>=destFreq) {
chan[c.chan].baseFreq=destFreq;
return2=true;
}
} else {
chan[c.chan].baseFreq-=c.value;
if (chan[c.chan].baseFreq<=destFreq) {
chan[c.chan].baseFreq=destFreq;
return2=true;
}
}
chan[c.chan].freqChanged=true;
if (return2) {
chan[c.chan].inPorta=false;
return 2;
}
break;
}
case DIV_CMD_LEGATO: {
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val-12):(0)));
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
break;
}
case DIV_CMD_PRE_PORTA:
if (chan[c.chan].active && c.value2) {
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_AMIGA));
}
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
chan[c.chan].inPorta=c.value;
break;
case DIV_CMD_SAMPLE_POS:
chan[c.chan].audPos=c.value;
chan[c.chan].setPos=true;
break;
case DIV_CMD_SAMPLE_DIR: {
if (chan[c.chan].reverse!=(bool)(c.value&1)) {
chan[c.chan].reverse=c.value&1;
}
break;
}
case DIV_CMD_GET_VOLMAX:
return 127;
break;
case DIV_CMD_MACRO_OFF:
chan[c.chan].std.mask(c.value,true);
break;
case DIV_CMD_MACRO_ON:
chan[c.chan].std.mask(c.value,false);
break;
case DIV_ALWAYS_SET_VOLUME:
return 1;
break;
default:
break;
}
return 1;
}
void DivPlatformK053260::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
updatePanning(1<<ch);
}
void DivPlatformK053260::forceIns() {
for (int i=0; i<4; i++) {
chan[i].insChanged=true;
chan[i].freqChanged=true;
chan[i].sample=-1;
chWrite(i,1,isMuted[i]?0:chan[i].panning);
}
}
void* DivPlatformK053260::getChanState(int ch) {
return &chan[ch];
}
DivMacroInt* DivPlatformK053260::getChanMacroInt(int ch) {
return &chan[ch].std;
}
DivDispatchOscBuffer* DivPlatformK053260::getOscBuffer(int ch) {
return oscBuf[ch];
}
void DivPlatformK053260::reset() {
memset(regPool,0,64);
k053260.reset();
rWrite(0x28,0); // keyoff all channels
for (int i=0; i<4; i++) {
chan[i]=DivPlatformK053260::Channel();
chan[i].std.setEngine(parent);
}
updatePanning(0xf);
rWrite(0x2f,2); // sound enable
}
int DivPlatformK053260::getOutputCount() {
return 2;
}
void DivPlatformK053260::notifyInsChange(int ins) {
for (int i=0; i<4; i++) {
if (chan[i].ins==ins) {
chan[i].insChanged=true;
}
}
}
void DivPlatformK053260::notifyWaveChange(int wave) {
// TODO when wavetables are added
// TODO they probably won't be added unless the samples reside in RAM
}
void DivPlatformK053260::notifyInsDeletion(void* ins) {
for (int i=0; i<4; i++) {
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
}
}
void DivPlatformK053260::setFlags(const DivConfig& flags) {
switch (flags.getInt("clockSel",0)) {
case 1: chipClock=4000000; break;
default: chipClock=COLOR_NTSC; break;
}
CHECK_CUSTOM_CLOCK;
rate=chipClock/TICK_DIVIDER;
for (int i=0; i<4; i++) {
oscBuf[i]->rate=rate;
}
}
void DivPlatformK053260::poke(unsigned int addr, unsigned short val) {
rWrite(addr&0x3f,val);
}
void DivPlatformK053260::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) rWrite(i.addr&0x3f,i.val);
}
unsigned char* DivPlatformK053260::getRegisterPool() {
regPool[0x29]=k053260.read(0x29); // dynamically updated
return regPool;
}
int DivPlatformK053260::getRegisterPoolSize() {
return 64;
}
const void* DivPlatformK053260::getSampleMem(int index) {
return index == 0 ? sampleMem : NULL;
}
size_t DivPlatformK053260::getSampleMemCapacity(int index) {
return index == 0 ? 2097152 : 0;
}
size_t DivPlatformK053260::getSampleMemUsage(int index) {
return index == 0 ? sampleMemLen : 0;
}
bool DivPlatformK053260::isSampleLoaded(int index, int sample) {
if (index!=0) return false;
if (sample<0 || sample>255) return false;
return sampleLoaded[sample];
}
void DivPlatformK053260::renderSamples(int sysID) {
memset(sampleMem,0,getSampleMemCapacity());
memset(sampleOffK053260,0,256*sizeof(unsigned int));
memset(sampleLoaded,0,256*sizeof(bool));
size_t memPos=1; // for avoid silence
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
if (!s->renderOn[0][sysID]) {
sampleOffK053260[i]=0;
continue;
}
int length=MIN(65535,s->getEndPosition(DIV_SAMPLE_DEPTH_8BIT));
int actualLength=MIN((int)(getSampleMemCapacity()-memPos-1),length);
if (actualLength>0) {
sampleOffK053260[i]=memPos-1;
for (int j=0; j<actualLength; j++) {
sampleMem[memPos++]=s->data8[j];
}
sampleMem[memPos++]=0; // Silence for avoid popping noise
}
if (actualLength<length) {
logW("out of K053260 PCM memory for sample %d!",i);
break;
}
sampleLoaded[i]=true;
}
sampleMemLen=memPos;
}
int DivPlatformK053260::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
for (int i=0; i<4; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
}
sampleMem=new unsigned char[getSampleMemCapacity()];
sampleMemLen=0;
setFlags(flags);
reset();
return 4;
}
void DivPlatformK053260::quit() {
delete[] sampleMem;
for (int i=0; i<4; i++) {
delete oscBuf[i];
}
}

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2023 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 _K053260_H
#define _K053260_H
#include "../dispatch.h"
#include <queue>
#include "vgsound_emu/src/k053260/k053260.hpp"
class DivPlatformK053260: public DivDispatch, public k053260_intf {
struct Channel: public SharedChannel<int> {
unsigned int audPos;
int sample, wave;
int panning;
bool setPos, reverse;
int macroVolMul;
Channel():
SharedChannel<int>(127),
audPos(0),
sample(-1),
wave(-1),
panning(4),
setPos(false),
reverse(false),
macroVolMul(64) {}
};
Channel chan[4];
DivDispatchOscBuffer* oscBuf[4];
bool isMuted[4];
int chipType;
unsigned char curChan;
unsigned int sampleOffK053260[256];
bool sampleLoaded[256];
unsigned char* sampleMem;
size_t sampleMemLen;
k053260_core k053260;
unsigned char regPool[64];
void updatePanning(unsigned char mask);
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
public:
virtual u8 read_sample(u32 address) override;
virtual void acquire(short** buf, size_t len) override;
virtual int dispatch(DivCommand c) override;
virtual void* getChanState(int chan) override;
virtual DivMacroInt* getChanMacroInt(int ch) override;
virtual DivDispatchOscBuffer* getOscBuffer(int chan) override;
virtual unsigned char* getRegisterPool() override;
virtual int getRegisterPoolSize() override;
virtual void reset() override;
virtual void forceIns() override;
virtual void tick(bool sysTick=true) override;
virtual void muteChannel(int ch, bool mute) override;
virtual int getOutputCount() override;
virtual void notifyInsChange(int ins) override;
virtual void notifyWaveChange(int wave) override;
virtual void notifyInsDeletion(void* ins) override;
virtual void setFlags(const DivConfig& flags) override;
virtual void poke(unsigned int addr, unsigned short val) override;
virtual void poke(std::vector<DivRegWrite>& wlist) override;
virtual const char** getRegisterSheet() override;
virtual const void* getSampleMem(int index = 0) override;
virtual size_t getSampleMemCapacity(int index = 0) override;
virtual size_t getSampleMemUsage(int index = 0) override;
virtual bool isSampleLoaded(int index, int sample) override;
virtual void renderSamples(int chipID) override;
virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
virtual void quit() override;
DivPlatformK053260():
DivDispatch(),
k053260_intf(),
k053260(*this) {}
private:
void chWrite(unsigned char ch, unsigned int addr, unsigned char val);
};
#endif