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furnace/src/engine/playback.cpp
tildearrow 6ec8674072 SoundUnit: many fixes. implement effects
2022-05-19 04:36:26 -05:00

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 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 <chrono>
#define _USE_MATH_DEFINES
#include "dispatch.h"
#include "engine.h"
#include "../ta-log.h"
#include <math.h>
#include <sndfile.h>
constexpr int MASTER_CLOCK_PREC=(sizeof(void*)==8)?8:0;
void DivEngine::nextOrder() {
curRow=0;
if (repeatPattern) return;
if (++curOrder>=curSubSong->ordersLen) {
endOfSong=true;
curOrder=0;
}
}
const char* notes[12]={
"C-", "C#", "D-", "D#", "E-", "F-", "F#", "G-", "G#", "A-", "A#", "B-"
};
// update this when adding new commands.
const char* cmdName[]={
"NOTE_ON",
"NOTE_OFF",
"NOTE_OFF_ENV",
"ENV_RELEASE",
"INSTRUMENT",
"VOLUME",
"GET_VOLUME",
"GET_VOLMAX",
"NOTE_PORTA",
"PITCH",
"PANNING",
"LEGATO",
"PRE_PORTA",
"PRE_NOTE",
"SAMPLE_MODE",
"SAMPLE_FREQ",
"SAMPLE_BANK",
"SAMPLE_POS",
"FM_HARD_RESET",
"FM_LFO",
"FM_LFO_WAVE",
"FM_TL",
"FM_AM",
"FM_AR",
"FM_DR",
"FM_SL",
"FM_D2R",
"FM_RR",
"FM_DT",
"FM_DT2",
"FM_RS",
"FM_KSR",
"FM_VIB",
"FM_SUS",
"FM_WS",
"FM_SSG",
"FM_REV",
"FM_EG_SHIFT",
"FM_FB",
"FM_MULT",
"FM_FINE",
"FM_FIXFREQ",
"FM_EXTCH",
"FM_AM_DEPTH",
"FM_PM_DEPTH",
"GENESIS_LFO",
"ARCADE_LFO",
"STD_NOISE_FREQ",
"STD_NOISE_MODE",
"WAVE",
"GB_SWEEP_TIME",
"GB_SWEEP_DIR",
"PCE_LFO_MODE",
"PCE_LFO_SPEED",
"NES_SWEEP",
"NES_DMC",
"C64_CUTOFF",
"C64_RESONANCE",
"C64_FILTER_MODE",
"C64_RESET_TIME",
"C64_RESET_MASK",
"C64_FILTER_RESET",
"C64_DUTY_RESET",
"C64_EXTENDED",
"C64_FINE_DUTY",
"C64_FINE_CUTOFF",
"AY_ENVELOPE_SET",
"AY_ENVELOPE_LOW",
"AY_ENVELOPE_HIGH",
"AY_ENVELOPE_SLIDE",
"AY_NOISE_MASK_AND",
"AY_NOISE_MASK_OR",
"AY_AUTO_ENVELOPE",
"AY_IO_WRITE",
"AY_AUTO_PWM",
"FDS_MOD_DEPTH",
"FDS_MOD_HIGH",
"FDS_MOD_LOW",
"FDS_MOD_POS",
"FDS_MOD_WAVE",
"SAA_ENVELOPE",
"AMIGA_FILTER",
"AMIGA_AM",
"AMIGA_PM",
"LYNX_LFSR_LOAD",
"QSOUND_ECHO_FEEDBACK",
"QSOUND_ECHO_DELAY",
"QSOUND_ECHO_LEVEL",
"QSOUND_SURROUND",
"X1_010_ENVELOPE_SHAPE",
"X1_010_ENVELOPE_ENABLE",
"X1_010_ENVELOPE_MODE",
"X1_010_ENVELOPE_PERIOD",
"X1_010_ENVELOPE_SLIDE",
"X1_010_AUTO_ENVELOPE",
"WS_SWEEP_TIME",
"WS_SWEEP_AMOUNT",
"N163_WAVE_POSITION",
"N163_WAVE_LENGTH",
"N163_WAVE_MODE",
"N163_WAVE_LOAD",
"N163_WAVE_LOADPOS",
"N163_WAVE_LOADLEN",
"N163_WAVE_LOADMODE",
"N163_CHANNEL_LIMIT",
"N163_GLOBAL_WAVE_LOAD",
"N163_GLOBAL_WAVE_LOADPOS",
"N163_GLOBAL_WAVE_LOADLEN",
"N163_GLOBAL_WAVE_LOADMODE",
"DIV_CMD_SU_SWEEP_PERIOD_LOW",
"DIV_CMD_SU_SWEEP_PERIOD_HIGH",
"DIV_CMD_SU_SWEEP_BOUND",
"DIV_CMD_SU_SWEEP_ENABLE",
"DIV_CMD_SU_SYNC_PERIOD_LOW",
"DIV_CMD_SU_SYNC_PERIOD_HIGH",
"ALWAYS_SET_VOLUME"
};
static_assert((sizeof(cmdName)/sizeof(void*))==DIV_CMD_MAX,"update cmdName!");
const char* formatNote(unsigned char note, unsigned char octave) {
static char ret[4];
if (note==100) {
return "OFF";
} else if (note==101) {
return "===";
} else if (note==102) {
return "REL";
} else if (octave==0 && note==0) {
return "---";
}
snprintf(ret,4,"%s%d",notes[note%12],octave+note/12);
return ret;
}
int DivEngine::dispatchCmd(DivCommand c) {
if (view==DIV_STATUS_COMMANDS) {
printf("%8d | %d: %s(%d, %d)\n",totalTicksR,c.chan,cmdName[c.cmd],c.value,c.value2);
}
totalCmds++;
if (cmdStreamEnabled && cmdStream.size()<2000) {
cmdStream.push_back(c);
}
if (output) if (!skipping && output->midiOut!=NULL) {
if (output->midiOut->isDeviceOpen()) {
int scaledVol=(chan[c.chan].volume*127)/MAX(1,chan[c.chan].volMax);
if (scaledVol<0) scaledVol=0;
if (scaledVol>127) scaledVol=127;
switch (c.cmd) {
case DIV_CMD_NOTE_ON:
case DIV_CMD_LEGATO:
if (chan[c.chan].curMidiNote>=0) {
output->midiOut->send(TAMidiMessage(0x80|(c.chan&15),chan[c.chan].curMidiNote,scaledVol));
}
if (c.value!=DIV_NOTE_NULL) chan[c.chan].curMidiNote=c.value+12;
output->midiOut->send(TAMidiMessage(0x90|(c.chan&15),chan[c.chan].curMidiNote,scaledVol));
break;
case DIV_CMD_NOTE_OFF:
case DIV_CMD_NOTE_OFF_ENV:
if (chan[c.chan].curMidiNote>=0) {
output->midiOut->send(TAMidiMessage(0x80|(c.chan&15),chan[c.chan].curMidiNote,scaledVol));
}
chan[c.chan].curMidiNote=-1;
break;
case DIV_CMD_INSTRUMENT:
if (chan[c.chan].lastIns!=c.value) {
output->midiOut->send(TAMidiMessage(0xc0|(c.chan&15),c.value,0));
}
break;
case DIV_CMD_VOLUME:
if (chan[c.chan].curMidiNote>=0 && chan[c.chan].midiAftertouch) {
chan[c.chan].midiAftertouch=false;
output->midiOut->send(TAMidiMessage(0xa0|(c.chan&15),chan[c.chan].curMidiNote,scaledVol));
}
break;
case DIV_CMD_PITCH: {
int pitchBend=8192+(c.value<<5);
if (pitchBend<0) pitchBend=0;
if (pitchBend>16383) pitchBend=16383;
if (pitchBend!=chan[c.chan].midiPitch) {
chan[c.chan].midiPitch=pitchBend;
output->midiOut->send(TAMidiMessage(0xe0|(c.chan&15),pitchBend&0x7f,pitchBend>>7));
}
break;
}
default:
break;
}
}
}
c.chan=dispatchChanOfChan[c.dis];
return disCont[dispatchOfChan[c.dis]].dispatch->dispatch(c);
}
bool DivEngine::perSystemEffect(int ch, unsigned char effect, unsigned char effectVal) {
if (sysDefs[sysOfChan[ch]]==NULL) return false;
return sysDefs[sysOfChan[ch]]->effectFunc(ch,effect,effectVal);
}
bool DivEngine::perSystemPostEffect(int ch, unsigned char effect, unsigned char effectVal) {
if (sysDefs[sysOfChan[ch]]==NULL) return false;
return sysDefs[sysOfChan[ch]]->postEffectFunc(ch,effect,effectVal);
}
void DivEngine::processRow(int i, bool afterDelay) {
int whatOrder=afterDelay?chan[i].delayOrder:curOrder;
int whatRow=afterDelay?chan[i].delayRow:curRow;
DivPattern* pat=curPat[i].getPattern(curOrders->ord[i][whatOrder],false);
// pre effects
if (!afterDelay) {
bool returnAfterPre=false;
for (int j=0; j<curPat[i].effectCols; j++) {
short effect=pat->data[whatRow][4+(j<<1)];
short effectVal=pat->data[whatRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
switch (effect) {
case 0x09: // speed 1
if (effectVal>0) speed1=effectVal;
break;
case 0x0f: // speed 2
if (effectVal>0) speed2=effectVal;
break;
case 0x0b: // change order
if (changeOrd==-1) {
changeOrd=effectVal;
changePos=0;
}
break;
case 0x0d: // next order
if (changeOrd<0 && (curOrder<(curSubSong->ordersLen-1) || !song.ignoreJumpAtEnd)) {
changeOrd=-2;
changePos=effectVal;
}
break;
case 0xed: // delay
if (effectVal!=0) {
if (effectVal<=nextSpeed) {
chan[i].rowDelay=effectVal+1;
chan[i].delayOrder=whatOrder;
chan[i].delayRow=whatRow;
if (effectVal==nextSpeed) {
//if (sysOfChan[i]!=DIV_SYSTEM_YM2610 && sysOfChan[i]!=DIV_SYSTEM_YM2610_EXT) chan[i].delayLocked=true;
} else {
chan[i].delayLocked=false;
}
returnAfterPre=true;
} else {
chan[i].delayLocked=false;
}
}
break;
}
}
if (returnAfterPre) return;
}
if (chan[i].delayLocked) return;
// instrument
bool insChanged=false;
if (pat->data[whatRow][2]!=-1) {
dispatchCmd(DivCommand(DIV_CMD_INSTRUMENT,i,pat->data[whatRow][2]));
if (chan[i].lastIns!=pat->data[whatRow][2]) {
chan[i].lastIns=pat->data[whatRow][2];
insChanged=true;
}
}
// note
if (pat->data[whatRow][0]==100) { // note off
//chan[i].note=-1;
chan[i].keyOn=false;
chan[i].keyOff=true;
if (chan[i].inPorta && song.noteOffResetsSlides) {
if (chan[i].stopOnOff) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].stopOnOff=false;
}
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsPorta(dispatchChanOfChan[i])) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
/*if (i==2 && sysOfChan[i]==DIV_SYSTEM_SMS) {
chan[i+1].portaNote=-1;
chan[i+1].portaSpeed=-1;
}*/
}
chan[i].scheduledSlideReset=true;
}
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF,i));
} else if (pat->data[whatRow][0]==101) { // note off + env release
//chan[i].note=-1;
chan[i].keyOn=false;
chan[i].keyOff=true;
if (chan[i].inPorta && song.noteOffResetsSlides) {
if (chan[i].stopOnOff) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].stopOnOff=false;
}
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsPorta(dispatchChanOfChan[i])) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
/*if (i==2 && sysOfChan[i]==DIV_SYSTEM_SMS) {
chan[i+1].portaNote=-1;
chan[i+1].portaSpeed=-1;
}*/
}
chan[i].scheduledSlideReset=true;
}
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF_ENV,i));
} else if (pat->data[whatRow][0]==102) { // env release
dispatchCmd(DivCommand(DIV_CMD_ENV_RELEASE,i));
} else if (!(pat->data[whatRow][0]==0 && pat->data[whatRow][1]==0)) {
chan[i].oldNote=chan[i].note;
chan[i].note=pat->data[whatRow][0]+((signed char)pat->data[whatRow][1])*12;
if (!chan[i].keyOn) {
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsArp(dispatchChanOfChan[i])) {
chan[i].arp=0;
}
}
chan[i].doNote=true;
if (chan[i].arp!=0 && song.compatibleArpeggio) {
chan[i].arpYield=true;
}
}
// volume
if (pat->data[whatRow][3]!=-1) {
if (dispatchCmd(DivCommand(DIV_ALWAYS_SET_VOLUME,i)) || (MIN(chan[i].volMax,chan[i].volume)>>8)!=pat->data[whatRow][3]) {
if (pat->data[whatRow][0]==0 && pat->data[whatRow][1]==0) {
chan[i].midiAftertouch=true;
}
chan[i].volume=pat->data[whatRow][3]<<8;
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}
}
chan[i].retrigSpeed=0;
short lastSlide=-1;
bool calledPorta=false;
bool panChanged=false;
// effects
for (int j=0; j<curPat[i].effectCols; j++) {
short effect=pat->data[whatRow][4+(j<<1)];
short effectVal=pat->data[whatRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
// per-system effect
if (!perSystemEffect(i,effect,effectVal)) switch (effect) {
case 0x08: // panning (split 4-bit)
chan[i].panL=(effectVal>>4)|(effectVal&0xf0);
chan[i].panR=(effectVal&15)|((effectVal&15)<<4);
panChanged=true;
break;
case 0x80: { // panning (linear)
unsigned short pan=convertPanLinearToSplit(effectVal,8,255);
chan[i].panL=pan>>8;
chan[i].panR=pan&0xff;
panChanged=true;
break;
}
case 0x81: // panning left (split 8-bit)
chan[i].panL=effectVal;
panChanged=true;
break;
case 0x82: // panning right (split 8-bit)
chan[i].panR=effectVal;
panChanged=true;
break;
case 0x01: // ramp up
if (song.ignoreDuplicateSlides && (lastSlide==0x01 || lastSlide==0x1337)) break;
lastSlide=0x01;
if (effectVal==0) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
} else {
chan[i].portaNote=song.limitSlides?0x60:255;
chan[i].portaSpeed=effectVal;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=false;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
}
break;
case 0x02: // ramp down
if (song.ignoreDuplicateSlides && (lastSlide==0x02 || lastSlide==0x1337)) break;
lastSlide=0x02;
if (effectVal==0) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
} else {
chan[i].portaNote=song.limitSlides?disCont[dispatchOfChan[i]].dispatch->getPortaFloor(dispatchChanOfChan[i]):-60;
chan[i].portaSpeed=effectVal;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=false;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
}
break;
case 0x03: // portamento
if (effectVal==0) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
} else {
calledPorta=true;
if (chan[i].note==chan[i].oldNote && !chan[i].inPorta && song.buggyPortaAfterSlide) {
chan[i].portaNote=chan[i].note;
chan[i].portaSpeed=-1;
} else {
chan[i].portaNote=chan[i].note;
chan[i].portaSpeed=effectVal;
chan[i].inPorta=true;
}
chan[i].portaStop=true;
if (chan[i].keyOn) chan[i].doNote=false;
chan[i].stopOnOff=song.stopPortaOnNoteOff; // what?!
chan[i].scheduledSlideReset=false;
dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,1));
lastSlide=0x1337; // i hate this so much
}
break;
case 0x04: // vibrato
chan[i].vibratoDepth=effectVal&15;
chan[i].vibratoRate=effectVal>>4;
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
case 0x07: // tremolo
// TODO
// this effect is really weird. i thought it would alter the tremolo depth but turns out it's completely different
// this is how it works:
// - 07xy enables tremolo
// - when enabled, a "low" boundary is calculated based on the current volume
// - then a volume slide down starts to the low boundary, and then when this is reached a volume slide up begins
// - this process repeats until 0700 or 0Axy are found
// - note that a volume value does not stop tremolo - instead it glitches this whole thing up
break;
case 0x0a: // volume ramp
// TODO: non-0x-or-x0 value should be treated as 00
if (effectVal!=0) {
if ((effectVal&15)!=0) {
chan[i].volSpeed=-(effectVal&15)*64;
} else {
chan[i].volSpeed=(effectVal>>4)*64;
}
} else {
chan[i].volSpeed=0;
}
break;
case 0x00: // arpeggio
chan[i].arp=effectVal;
if (chan[i].arp==0 && song.arp0Reset) {
chan[i].resetArp=true;
}
break;
case 0x0c: // retrigger
if (effectVal!=0) {
chan[i].retrigSpeed=effectVal;
chan[i].retrigTick=0;
}
break;
case 0x90: case 0x91: case 0x92: case 0x93:
case 0x94: case 0x95: case 0x96: case 0x97:
case 0x98: case 0x99: case 0x9a: case 0x9b:
case 0x9c: case 0x9d: case 0x9e: case 0x9f: // set samp. pos
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_POS,i,(((effect&0x0f)<<8)|effectVal)*256));
break;
case 0xc0: case 0xc1: case 0xc2: case 0xc3: // set Hz
divider=(double)(((effect&0x3)<<8)|effectVal);
if (divider<10) divider=10;
cycles=got.rate*pow(2,MASTER_CLOCK_PREC)/divider;
clockDrift=0;
break;
case 0xe0: // arp speed
if (effectVal>0) {
curSubSong->arpLen=effectVal;
}
break;
case 0xe1: // portamento up
chan[i].portaNote=chan[i].note+(effectVal&15);
chan[i].portaSpeed=(effectVal>>4)*4;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=song.stopPortaOnNoteOff; // what?!
chan[i].scheduledSlideReset=false;
if ((effectVal&15)!=0) {
chan[i].inPorta=true;
chan[i].shorthandPorta=true;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
if (song.e1e2AlsoTakePriority) lastSlide=0x1337; // ...
} else {
chan[i].inPorta=false;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
}
break;
case 0xe2: // portamento down
chan[i].portaNote=chan[i].note-(effectVal&15);
chan[i].portaSpeed=(effectVal>>4)*4;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=song.stopPortaOnNoteOff; // what?!
chan[i].scheduledSlideReset=false;
if ((effectVal&15)!=0) {
chan[i].inPorta=true;
chan[i].shorthandPorta=true;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
if (song.e1e2AlsoTakePriority) lastSlide=0x1337; // ...
} else {
chan[i].inPorta=false;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
}
break;
case 0xe3: // vibrato direction
chan[i].vibratoDir=effectVal;
break;
case 0xe4: // vibrato fine
chan[i].vibratoFine=effectVal;
break;
case 0xe5: // pitch
chan[i].pitch=effectVal-0x80;
if (sysOfChan[i]==DIV_SYSTEM_YM2151) { // YM2151 pitch oddity
chan[i].pitch*=2;
if (chan[i].pitch<-128) chan[i].pitch=-128;
if (chan[i].pitch>127) chan[i].pitch=127;
}
//chan[i].pitch+=globalPitch;
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
case 0xea: // legato mode
chan[i].legato=effectVal;
break;
case 0xeb: // sample bank
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_BANK,i,effectVal));
break;
case 0xec: // delayed note cut
if (effectVal>0 && effectVal<nextSpeed) {
chan[i].cut=effectVal+1;
}
break;
case 0xee: // external command
//printf("\x1b[1;36m%d: extern command %d\x1b[m\n",i,effectVal);
extValue=effectVal;
extValuePresent=true;
break;
case 0xef: // global pitch
globalPitch+=(signed char)(effectVal-0x80);
break;
case 0xf0: // set Hz by tempo
divider=(double)effectVal*2.0/5.0;
if (divider<10) divider=10;
cycles=got.rate*pow(2,MASTER_CLOCK_PREC)/divider;
clockDrift=0;
break;
case 0xf1: // single pitch ramp up
case 0xf2: // single pitch ramp down
if (effect==0xf1) {
chan[i].portaNote=song.limitSlides?0x60:255;
} else {
chan[i].portaNote=song.limitSlides?disCont[dispatchOfChan[i]].dispatch->getPortaFloor(dispatchChanOfChan[i]):-60;
}
chan[i].portaSpeed=effectVal;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=false;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
dispatchCmd(DivCommand(DIV_CMD_NOTE_PORTA,i,chan[i].portaSpeed*(song.linearPitch==2?song.pitchSlideSpeed:1),chan[i].portaNote));
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
break;
case 0xf3: // fine volume ramp up
chan[i].volSpeed=effectVal;
break;
case 0xf4: // fine volume ramp down
chan[i].volSpeed=-effectVal;
break;
case 0xf8: // single volume ramp up
chan[i].volume=MIN(chan[i].volume+effectVal*256,chan[i].volMax);
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
break;
case 0xf9: // single volume ramp down
chan[i].volume=MAX(chan[i].volume-effectVal*256,0);
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
break;
case 0xfa: // fast volume ramp
if (effectVal!=0) {
if ((effectVal&15)!=0) {
chan[i].volSpeed=-(effectVal&15)*256;
} else {
chan[i].volSpeed=(effectVal>>4)*256;
}
} else {
chan[i].volSpeed=0;
}
break;
case 0xff: // stop song
freelance=false;
playing=false;
extValuePresent=false;
stepPlay=0;
remainingLoops=-1;
sPreview.sample=-1;
sPreview.wave=-1;
sPreview.pos=0;
break;
}
}
if (panChanged) {
dispatchCmd(DivCommand(DIV_CMD_PANNING,i,chan[i].panL,chan[i].panR));
}
if (insChanged && (chan[i].inPorta || calledPorta) && song.newInsTriggersInPorta) {
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,DIV_NOTE_NULL));
}
if (chan[i].doNote) {
if (!song.continuousVibrato) {
chan[i].vibratoPos=0;
}
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
if (chan[i].legato) {
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
} else {
if (chan[i].inPorta && chan[i].keyOn && !chan[i].shorthandPorta) {
chan[i].portaNote=chan[i].note;
} else if (!chan[i].noteOnInhibit) {
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,chan[i].note,chan[i].volume>>8));
keyHit[i]=true;
}
}
chan[i].doNote=false;
if (!chan[i].keyOn && chan[i].scheduledSlideReset) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
}
if (!chan[i].keyOn && chan[i].volume>chan[i].volMax) {
chan[i].volume=chan[i].volMax;
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}
chan[i].keyOn=true;
chan[i].keyOff=false;
}
chan[i].nowYouCanStop=true;
chan[i].shorthandPorta=false;
chan[i].noteOnInhibit=false;
// post effects
for (int j=0; j<curPat[i].effectCols; j++) {
short effect=pat->data[whatRow][4+(j<<1)];
short effectVal=pat->data[whatRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
perSystemPostEffect(i,effect,effectVal);
}
}
void DivEngine::nextRow() {
static char pb[4096];
static char pb1[4096];
static char pb2[4096];
static char pb3[4096];
if (view==DIV_STATUS_PATTERN) {
strcpy(pb1,"");
strcpy(pb3,"");
for (int i=0; i<chans; i++) {
snprintf(pb,4095," %.2x",curOrders->ord[i][curOrder]);
strcat(pb1,pb);
DivPattern* pat=curPat[i].getPattern(curOrders->ord[i][curOrder],false);
snprintf(pb2,4095,"\x1b[37m %s",
formatNote(pat->data[curRow][0],pat->data[curRow][1]));
strcat(pb3,pb2);
if (pat->data[curRow][3]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[1;32m%.2x",pat->data[curRow][3]);
strcat(pb3,pb2);
}
if (pat->data[curRow][2]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[0;36m%.2x",pat->data[curRow][2]);
strcat(pb3,pb2);
}
for (int j=0; j<curPat[i].effectCols; j++) {
if (pat->data[curRow][4+(j<<1)]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[1;31m%.2x",pat->data[curRow][4+(j<<1)]);
strcat(pb3,pb2);
}
if (pat->data[curRow][5+(j<<1)]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[1;37m%.2x",pat->data[curRow][5+(j<<1)]);
strcat(pb3,pb2);
}
}
}
printf("| %.2x:%s | \x1b[1;33m%3d%s\x1b[m\n",curOrder,pb1,curRow,pb3);
}
for (int i=0; i<chans; i++) {
chan[i].rowDelay=0;
processRow(i,false);
}
if (changeOrd!=-1) {
if (repeatPattern) {
curRow=0;
changeOrd=-1;
} else {
curRow=changePos;
if (changeOrd==-2) changeOrd=curOrder+1;
if (changeOrd<=curOrder) endOfSong=true;
curOrder=changeOrd;
if (curOrder>=curSubSong->ordersLen) {
curOrder=0;
endOfSong=true;
}
changeOrd=-1;
}
if (haltOn==DIV_HALT_PATTERN) halted=true;
} else if (playing) if (++curRow>=curSubSong->patLen) {
nextOrder();
if (haltOn==DIV_HALT_PATTERN) halted=true;
}
if (song.brokenSpeedSel) {
if ((curSubSong->patLen&1) && curOrder&1) {
ticks=((curRow&1)?speed2:speed1)*(curSubSong->timeBase+1);
nextSpeed=(curRow&1)?speed1:speed2;
} else {
ticks=((curRow&1)?speed1:speed2)*(curSubSong->timeBase+1);
nextSpeed=(curRow&1)?speed2:speed1;
}
} else {
if (speedAB) {
ticks=speed2*(curSubSong->timeBase+1);
nextSpeed=speed1;
} else {
ticks=speed1*(curSubSong->timeBase+1);
nextSpeed=speed2;
}
speedAB=!speedAB;
}
// post row details
for (int i=0; i<chans; i++) {
DivPattern* pat=curPat[i].getPattern(curOrders->ord[i][curOrder],false);
if (!(pat->data[curRow][0]==0 && pat->data[curRow][1]==0)) {
if (pat->data[curRow][0]!=100 && pat->data[curRow][0]!=101 && pat->data[curRow][0]!=102) {
if (!chan[i].legato) {
dispatchCmd(DivCommand(DIV_CMD_PRE_NOTE,i,ticks));
if (song.oneTickCut) {
bool doPrepareCut=true;
for (int j=0; j<curPat[i].effectCols; j++) {
if (pat->data[curRow][4+(j<<1)]==0x03) {
doPrepareCut=false;
break;
}
if (pat->data[curRow][4+(j<<1)]==0xea) {
if (pat->data[curRow][5+(j<<1)]>0) {
doPrepareCut=false;
break;
}
}
}
if (doPrepareCut) chan[i].cut=ticks;
}
}
}
}
}
if (haltOn==DIV_HALT_ROW) halted=true;
firstTick=true;
}
bool DivEngine::nextTick(bool noAccum, bool inhibitLowLat) {
bool ret=false;
if (divider<10) divider=10;
if (lowLatency && !skipping && !inhibitLowLat) {
tickMult=1000/divider;
if (tickMult<1) tickMult=1;
} else {
tickMult=1;
}
cycles=got.rate*pow(2,MASTER_CLOCK_PREC)/(divider*tickMult);
clockDrift+=fmod(got.rate*pow(2,MASTER_CLOCK_PREC),(double)(divider*tickMult));
if (clockDrift>=(divider*tickMult)) {
clockDrift-=(divider*tickMult);
cycles++;
}
// MIDI clock
if (output) if (!skipping && output->midiOut!=NULL) {
output->midiOut->send(TAMidiMessage(TA_MIDI_CLOCK,0,0));
}
while (!pendingNotes.empty()) {
DivNoteEvent& note=pendingNotes.front();
if (note.on) {
dispatchCmd(DivCommand(DIV_CMD_INSTRUMENT,note.channel,note.ins,1));
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,note.channel,note.note));
keyHit[note.channel]=true;
chan[note.channel].noteOnInhibit=true;
} else {
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF,note.channel));
}
pendingNotes.pop();
}
if (!freelance) {
if (--subticks<=0) {
subticks=tickMult;
if (stepPlay!=1) {
tempoAccum+=curSubSong->virtualTempoN;
while (tempoAccum>=curSubSong->virtualTempoD) {
tempoAccum-=curSubSong->virtualTempoD;
if (--ticks<=0) {
ret=endOfSong;
if (endOfSong) {
if (song.loopModality!=2) {
playSub(true);
}
}
endOfSong=false;
if (stepPlay==2) stepPlay=1;
nextRow();
break;
}
}
}
// process stuff
for (int i=0; i<chans; i++) {
if (chan[i].rowDelay>0) {
if (--chan[i].rowDelay==0) {
processRow(i,true);
}
}
if (chan[i].retrigSpeed) {
if (--chan[i].retrigTick<0) {
chan[i].retrigTick=chan[i].retrigSpeed-1;
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,DIV_NOTE_NULL));
keyHit[i]=true;
}
}
if (!song.noSlidesOnFirstTick || !firstTick) {
if (chan[i].volSpeed!=0) {
chan[i].volume=(chan[i].volume&0xff)|(dispatchCmd(DivCommand(DIV_CMD_GET_VOLUME,i))<<8);
chan[i].volume+=chan[i].volSpeed;
if (chan[i].volume>chan[i].volMax) {
chan[i].volume=chan[i].volMax;
chan[i].volSpeed=0;
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
} else if (chan[i].volume<0) {
chan[i].volSpeed=0;
if (song.legacyVolumeSlides) {
chan[i].volume=chan[i].volMax+1;
} else {
chan[i].volume=0;
}
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
} else {
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}
}
}
if (chan[i].vibratoDepth>0) {
chan[i].vibratoPos+=chan[i].vibratoRate;
if (chan[i].vibratoPos>=64) chan[i].vibratoPos-=64;
switch (chan[i].vibratoDir) {
case 1: // up
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(MAX(0,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
case 2: // down
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(MIN(0,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
default: // both
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
}
}
if (!song.noSlidesOnFirstTick || !firstTick) {
if ((chan[i].keyOn || chan[i].keyOff) && chan[i].portaSpeed>0) {
if (dispatchCmd(DivCommand(DIV_CMD_NOTE_PORTA,i,chan[i].portaSpeed*(song.linearPitch==2?song.pitchSlideSpeed:1),chan[i].portaNote))==2 && chan[i].portaStop && song.targetResetsSlides) {
chan[i].portaSpeed=0;
chan[i].oldNote=chan[i].note;
chan[i].note=chan[i].portaNote;
chan[i].inPorta=false;
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
}
}
}
if (chan[i].cut>0) {
if (--chan[i].cut<1) {
chan[i].oldNote=chan[i].note;
//chan[i].note=-1;
if (chan[i].inPorta && song.noteOffResetsSlides) {
chan[i].keyOff=true;
chan[i].keyOn=false;
if (chan[i].stopOnOff) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].stopOnOff=false;
}
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsPorta(dispatchChanOfChan[i])) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
/*if (i==2 && sysOfChan[i]==DIV_SYSTEM_SMS) {
chan[i+1].portaNote=-1;
chan[i+1].portaSpeed=-1;
}*/
}
dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
chan[i].scheduledSlideReset=true;
}
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF,i));
}
}
if (chan[i].resetArp) {
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
chan[i].resetArp=false;
}
if (song.rowResetsArpPos && firstTick) {
chan[i].arpStage=-1;
}
if (chan[i].arp!=0 && !chan[i].arpYield && chan[i].portaSpeed<1) {
if (--chan[i].arpTicks<1) {
chan[i].arpTicks=curSubSong->arpLen;
chan[i].arpStage++;
if (chan[i].arpStage>2) chan[i].arpStage=0;
switch (chan[i].arpStage) {
case 0:
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
break;
case 1:
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note+(chan[i].arp>>4)));
break;
case 2:
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note+(chan[i].arp&15)));
break;
}
}
} else {
chan[i].arpYield=false;
}
}
}
}
firstTick=false;
// system tick
for (int i=0; i<song.systemLen; i++) disCont[i].dispatch->tick(subticks==tickMult);
if (!freelance) {
if (stepPlay!=1) {
if (!noAccum) {
totalTicksR++;
totalTicks+=1000000/(divider*tickMult);
}
if (totalTicks>=1000000) {
totalTicks-=1000000;
totalSeconds++;
cmdsPerSecond=totalCmds-lastCmds;
lastCmds=totalCmds;
}
}
if (consoleMode && subticks<=1) fprintf(stderr,"\x1b[2K> %d:%.2d:%.2d.%.2d %.2x/%.2x:%.3d/%.3d %4dcmd/s\x1b[G",totalSeconds/3600,(totalSeconds/60)%60,totalSeconds%60,totalTicks/10000,curOrder,curSubSong->ordersLen,curRow,curSubSong->patLen,cmdsPerSecond);
}
if (haltOn==DIV_HALT_TICK) halted=true;
return ret;
}
void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsigned int size) {
if (out!=NULL) {
memset(out[0],0,size*sizeof(float));
memset(out[1],0,size*sizeof(float));
}
if (softLocked) {
if (!isBusy.try_lock()) {
logV("audio is soft-locked (%d)",softLockCount++);
return;
}
} else {
isBusy.lock();
}
got.bufsize=size;
std::chrono::steady_clock::time_point ts_processBegin=std::chrono::steady_clock::now();
// process MIDI events (TODO: everything)
if (output) if (output->midiIn) while (!output->midiIn->queue.empty()) {
TAMidiMessage& msg=output->midiIn->queue.front();
int ins=-1;
if ((ins=midiCallback(msg))!=-2) {
int chan=msg.type&15;
switch (msg.type&0xf0) {
case TA_MIDI_NOTE_OFF: {
if (chan<0 || chan>=chans) break;
if (midiIsDirect) {
pendingNotes.push(DivNoteEvent(chan,-1,-1,-1,false));
} else {
autoNoteOff(msg.type&15,msg.data[0]-12,msg.data[1]);
}
if (!playing) {
reset();
freelance=true;
playing=true;
}
break;
}
case TA_MIDI_NOTE_ON: {
if (chan<0 || chan>=chans) break;
if (msg.data[1]==0) {
if (midiIsDirect) {
pendingNotes.push(DivNoteEvent(chan,-1,-1,-1,false));
} else {
autoNoteOff(msg.type&15,msg.data[0]-12,msg.data[1]);
}
} else {
if (midiIsDirect) {
pendingNotes.push(DivNoteEvent(chan,ins,msg.data[0]-12,msg.data[1],true));
} else {
autoNoteOn(msg.type&15,ins,msg.data[0]-12,msg.data[1]);
}
}
break;
}
case TA_MIDI_PROGRAM: {
// TODO: change instrument event thingy
break;
}
}
}
logD("%.2x",msg.type);
output->midiIn->queue.pop();
}
// process audio
if (out!=NULL && ((sPreview.sample>=0 && sPreview.sample<(int)song.sample.size()) || (sPreview.wave>=0 && sPreview.wave<(int)song.wave.size()))) {
unsigned int samp_bbOff=0;
unsigned int prevAvail=blip_samples_avail(samp_bb);
if (prevAvail>size) prevAvail=size;
if (prevAvail>0) {
blip_read_samples(samp_bb,samp_bbOut,prevAvail,0);
samp_bbOff=prevAvail;
}
size_t prevtotal=blip_clocks_needed(samp_bb,size-prevAvail);
if (sPreview.sample>=0 && sPreview.sample<(int)song.sample.size()) {
DivSample* s=song.sample[sPreview.sample];
for (size_t i=0; i<prevtotal; i++) {
if (sPreview.pos>=s->samples) {
samp_temp=0;
} else {
samp_temp=s->data16[sPreview.pos++];
}
blip_add_delta(samp_bb,i,samp_temp-samp_prevSample);
samp_prevSample=samp_temp;
if (sPreview.pos>=s->samples) {
if (s->loopStart>=0 && s->loopStart<(int)s->samples) {
sPreview.pos=s->loopStart;
}
}
}
if (sPreview.pos>=s->samples) {
if (s->loopStart>=0 && s->loopStart<(int)s->samples) {
sPreview.pos=s->loopStart;
} else {
sPreview.sample=-1;
}
}
} else if (sPreview.wave>=0 && sPreview.wave<(int)song.wave.size()) {
DivWavetable* wave=song.wave[sPreview.wave];
for (size_t i=0; i<prevtotal; i++) {
if (wave->max<=0) {
samp_temp=0;
} else {
samp_temp=((MIN(wave->data[sPreview.pos],wave->max)<<14)/wave->max)-8192;
}
if (++sPreview.pos>=(unsigned int)wave->len) {
sPreview.pos=0;
}
blip_add_delta(samp_bb,i,samp_temp-samp_prevSample);
samp_prevSample=samp_temp;
}
}
blip_end_frame(samp_bb,prevtotal);
blip_read_samples(samp_bb,samp_bbOut+samp_bbOff,size-samp_bbOff,0);
for (size_t i=0; i<size; i++) {
out[0][i]+=(float)samp_bbOut[i]/32768.0;
out[1][i]+=(float)samp_bbOut[i]/32768.0;
}
}
if (!playing) {
if (out!=NULL) {
for (unsigned int i=0; i<size; i++) {
oscBuf[0][oscWritePos]=out[0][i];
oscBuf[1][oscWritePos]=out[1][i];
if (++oscWritePos>=32768) oscWritePos=0;
}
oscSize=size;
}
isBusy.unlock();
return;
}
// logic starts here
size_t runtotal[32];
size_t runLeft[32];
size_t runPos[32];
size_t lastAvail[32];
for (int i=0; i<song.systemLen; i++) {
lastAvail[i]=blip_samples_avail(disCont[i].bb[0]);
if (lastAvail[i]>0) {
disCont[i].flush(lastAvail[i]);
}
runtotal[i]=blip_clocks_needed(disCont[i].bb[0],size-lastAvail[i]);
if (runtotal[i]>disCont[i].bbInLen) {
delete[] disCont[i].bbIn[0];
delete[] disCont[i].bbIn[1];
disCont[i].bbIn[0]=new short[runtotal[i]+256];
disCont[i].bbIn[1]=new short[runtotal[i]+256];
disCont[i].bbInLen=runtotal[i]+256;
}
runLeft[i]=runtotal[i];
runPos[i]=0;
}
if (metroTickLen<size) {
if (metroTick!=NULL) delete[] metroTick;
metroTick=new unsigned char[size];
metroTickLen=size;
}
memset(metroTick,0,size);
int attempts=0;
int runLeftG=size<<MASTER_CLOCK_PREC;
while (++attempts<100) {
// 0. check if we've halted
if (halted) break;
// 1. check whether we are done with all buffers
if (runLeftG<=0) break;
// 2. check whether we gonna tick
if (cycles<=0) {
// we have to tick
if (!freelance && stepPlay!=-1 && subticks==1) {
unsigned int realPos=size-(runLeftG>>MASTER_CLOCK_PREC);
if (realPos>=size) realPos=size-1;
if (curSubSong->hilightA>0) {
if ((curRow%curSubSong->hilightA)==0 && ticks==1) metroTick[realPos]=1;
}
if (curSubSong->hilightB>0) {
if ((curRow%curSubSong->hilightB)==0 && ticks==1) metroTick[realPos]=2;
}
}
if (nextTick()) {
if (remainingLoops>0) {
remainingLoops--;
if (!remainingLoops) {
logI("end of song!");
remainingLoops=-1;
playing=false;
freelance=false;
extValuePresent=false;
break;
}
}
}
} else {
// 3. tick the clock and fill buffers as needed
if (cycles<runLeftG) {
for (int i=0; i<song.systemLen; i++) {
int total=(cycles*runtotal[i])/(size<<MASTER_CLOCK_PREC);
disCont[i].acquire(runPos[i],total);
runLeft[i]-=total;
runPos[i]+=total;
}
runLeftG-=cycles;
cycles=0;
} else {
cycles-=runLeftG;
runLeftG=0;
for (int i=0; i<song.systemLen; i++) {
disCont[i].acquire(runPos[i],runLeft[i]);
runLeft[i]=0;
}
}
}
}
if (out==NULL || halted) {
isBusy.unlock();
return;
}
//logD("attempts: %d",attempts);
if (attempts>=100) {
logE("hang detected! stopping! at %d seconds %d micro",totalSeconds,totalTicks);
freelance=false;
playing=false;
extValuePresent=false;
}
totalProcessed=size-(runLeftG>>MASTER_CLOCK_PREC);
for (int i=0; i<song.systemLen; i++) {
disCont[i].fillBuf(runtotal[i],lastAvail[i],size-lastAvail[i]);
}
for (int i=0; i<song.systemLen; i++) {
float volL=((float)song.systemVol[i]/64.0f)*((float)MIN(127,127-(int)song.systemPan[i])/127.0f)*song.masterVol;
float volR=((float)song.systemVol[i]/64.0f)*((float)MIN(127,127+(int)song.systemPan[i])/127.0f)*song.masterVol;
volL*=disCont[i].dispatch->getPostAmp();
volR*=disCont[i].dispatch->getPostAmp();
if (disCont[i].dispatch->isStereo()) {
for (size_t j=0; j<size; j++) {
out[0][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*volL;
out[1][j]+=((float)disCont[i].bbOut[1][j]/32768.0)*volR;
}
} else {
for (size_t j=0; j<size; j++) {
out[0][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*volL;
out[1][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*volR;
}
}
}
if (metronome) for (size_t i=0; i<size; i++) {
if (metroTick[i]) {
if (metroTick[i]==2) {
metroFreq=1400/got.rate;
} else {
metroFreq=1050/got.rate;
}
metroPos=0;
metroAmp=0.7f;
}
if (metroAmp>0.0f) {
out[0][i]+=(sin(metroPos*2*M_PI))*metroAmp*metroVol;
out[1][i]+=(sin(metroPos*2*M_PI))*metroAmp*metroVol;
}
metroAmp-=0.0003f;
if (metroAmp<0.0f) metroAmp=0.0f;
metroPos+=metroFreq;
while (metroPos>=1) metroPos--;
}
for (unsigned int i=0; i<size; i++) {
oscBuf[0][oscWritePos]=out[0][i];
oscBuf[1][oscWritePos]=out[1][i];
if (++oscWritePos>=32768) oscWritePos=0;
}
oscSize=size;
if (forceMono) {
for (size_t i=0; i<size; i++) {
out[0][i]=(out[0][i]+out[1][i])*0.5;
out[1][i]=out[0][i];
}
}
isBusy.unlock();
std::chrono::steady_clock::time_point ts_processEnd=std::chrono::steady_clock::now();
processTime=std::chrono::duration_cast<std::chrono::nanoseconds>(ts_processEnd-ts_processBegin).count();
}
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