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dev185 - SoundUnit: hardware sweep sequences

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kinda buggy in note off... may require a rewrite of volume handling
This commit is contained in:
tildearrow 2023-10-21 18:42:37 -05:00
parent 10c72f3a10
commit f718fbb5f5
7 changed files with 406 additions and 12 deletions
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79
src/engine/platform/su.cpp
View file

@ -134,6 +134,79 @@ void DivPlatformSoundUnit::tick(bool sysTick) {
}
writeControlUpper(i);
}
// run hardware sequence
if (chan[i].active) {
if (--chan[i].hwSeqDelay<=0) {
chan[i].hwSeqDelay=0;
DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU);
int hwSeqCount=0;
while (chan[i].hwSeqPos<ins->su.hwSeqLen && hwSeqCount<8) {
bool leave=false;
unsigned char bound=ins->su.hwSeq[chan[i].hwSeqPos].bound;
unsigned char val=ins->su.hwSeq[chan[i].hwSeqPos].val;
unsigned short speed=ins->su.hwSeq[chan[i].hwSeqPos].speed;
switch (ins->su.hwSeq[chan[i].hwSeqPos].cmd) {
case DivInstrumentSoundUnit::DIV_SU_HWCMD_VOL:
chan[i].volSweepP=speed;
chan[i].volSweepV=val;
chan[i].volSweepB=bound;
chan[i].volSweep=(val>0);
chWrite(i,0x14,chan[i].volSweepP&0xff);
chWrite(i,0x15,chan[i].volSweepP>>8);
chWrite(i,0x16,chan[i].volSweepV);
chWrite(i,0x17,chan[i].volSweepB);
writeControlUpper(i);
break;
case DivInstrumentSoundUnit::DIV_SU_HWCMD_PITCH:
chan[i].freqSweepP=speed;
chan[i].freqSweepV=val;
chan[i].freqSweepB=bound;
chan[i].freqSweep=(val>0);
chWrite(i,0x10,chan[i].freqSweepP&0xff);
chWrite(i,0x11,chan[i].freqSweepP>>8);
chWrite(i,0x12,chan[i].freqSweepV);
chWrite(i,0x13,chan[i].freqSweepB);
writeControlUpper(i);
break;
case DivInstrumentSoundUnit::DIV_SU_HWCMD_CUT:
chan[i].cutSweepP=speed;
chan[i].cutSweepV=val;
chan[i].cutSweepB=bound;
chan[i].cutSweep=(val>0);
chWrite(i,0x18,chan[i].cutSweepP&0xff);
chWrite(i,0x19,chan[i].cutSweepP>>8);
chWrite(i,0x1a,chan[i].cutSweepV);
chWrite(i,0x1b,chan[i].cutSweepB);
writeControlUpper(i);
break;
case DivInstrumentSoundUnit::DIV_SU_HWCMD_WAIT:
chan[i].hwSeqDelay=(val+1)*parent->tickMult;
leave=true;
break;
case DivInstrumentSoundUnit::DIV_SU_HWCMD_WAIT_REL:
if (!chan[i].released) {
chan[i].hwSeqPos--;
leave=true;
}
break;
case DivInstrumentSoundUnit::DIV_SU_HWCMD_LOOP:
chan[i].hwSeqPos=val-1;
break;
case DivInstrumentSoundUnit::DIV_SU_HWCMD_LOOP_REL:
if (!chan[i].released) {
chan[i].hwSeqPos=val-1;
}
break;
}
chan[i].hwSeqPos++;
if (leave) break;
hwSeqCount++;
}
}
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,chan[i].switchRoles,2,chan[i].pitch2,chipClock,chan[i].switchRoles?CHIP_DIVIDER:CHIP_FREQBASE);
@ -220,6 +293,9 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
chan[c.chan].released=false;
chan[c.chan].hwSeqPos=0;
chan[c.chan].hwSeqDelay=0;
chWrite(c.chan,0x02,chan[c.chan].vol);
chan[c.chan].macroInit(ins);
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
@ -231,11 +307,14 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
case DIV_CMD_NOTE_OFF:
chan[c.chan].active=false;
chan[c.chan].keyOff=true;
chan[c.chan].hwSeqPos=0;
chan[c.chan].hwSeqDelay=0;
chan[c.chan].macroInit(NULL);
break;
case DIV_CMD_NOTE_OFF_ENV:
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
chan[c.chan].released=true;
break;
case DIV_CMD_INSTRUMENT:
if (chan[c.chan].ins!=c.value || c.value2==1) {

9
src/engine/platform/su.h
View file

@ -30,12 +30,14 @@ class DivPlatformSoundUnit: public DivDispatch {
signed char pan;
unsigned char duty;
bool noise, pcm, phaseReset, filterPhaseReset, switchRoles;
bool pcmLoop, timerSync, freqSweep, volSweep, cutSweep;
bool pcmLoop, timerSync, freqSweep, volSweep, cutSweep, released;
unsigned short freqSweepP, volSweepP, cutSweepP;
unsigned char freqSweepB, volSweepB, cutSweepB;
unsigned char freqSweepV, volSweepV, cutSweepV;
unsigned short syncTimer;
signed short wave;
unsigned short hwSeqPos;
short hwSeqDelay;
Channel():
SharedChannel<signed char>(127),
cutoff(16383),
@ -56,6 +58,7 @@ class DivPlatformSoundUnit: public DivDispatch {
freqSweep(false),
volSweep(false),
cutSweep(false),
released(false),
freqSweepP(0),
volSweepP(0),
cutSweepP(0),
@ -66,7 +69,9 @@ class DivPlatformSoundUnit: public DivDispatch {
volSweepV(0),
cutSweepV(0),
syncTimer(0),
wave(0) {}
wave(0),
hwSeqPos(0),
hwSeqDelay(0) {}
};
Channel chan[8];
DivDispatchOscBuffer* oscBuf[8];