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increase playback tempo precision

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thanks akumanatt
This commit is contained in:
tildearrow 2022-03-16 02:35:33 -05:00
parent 9322e9467c
commit cbd5414eee
1 changed files with 5 additions and 5 deletions
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10
src/engine/playback.cpp
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@ -923,9 +923,9 @@ void DivEngine::processRow(int i, bool afterDelay) {
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_POS,i,(((effect&0x0f)<<8)|effectVal)*256)); dispatchCmd(DivCommand(DIV_CMD_SAMPLE_POS,i,(((effect&0x0f)<<8)|effectVal)*256));
break; break;
case 0xc0: case 0xc1: case 0xc2: case 0xc3: // set Hz case 0xc0: case 0xc1: case 0xc2: case 0xc3: // set Hz
divider=((effect&0x3)<<8)|effectVal; divider=(double)(((effect&0x3)<<8)|effectVal);
if (divider<10) divider=10; if (divider<10) divider=10;
cycles=((int)(got.rate)<<MASTER_CLOCK_PREC)/divider; cycles=got.rate*pow(2,MASTER_CLOCK_PREC)/divider;
clockDrift=0; clockDrift=0;
break; break;
case 0xe0: // arp speed case 0xe0: // arp speed
@ -1003,7 +1003,7 @@ void DivEngine::processRow(int i, bool afterDelay) {
case 0xf0: // set Hz by tempo case 0xf0: // set Hz by tempo
divider=(double)effectVal*2.0/5.0; divider=(double)effectVal*2.0/5.0;
if (divider<10) divider=10; if (divider<10) divider=10;
cycles=((int)(got.rate)<<MASTER_CLOCK_PREC)/divider; cycles=got.rate*pow(2,MASTER_CLOCK_PREC)/divider;
clockDrift=0; clockDrift=0;
break; break;
case 0xf1: // single pitch ramp up case 0xf1: // single pitch ramp up
@ -1220,8 +1220,8 @@ bool DivEngine::nextTick(bool noAccum) {
bool ret=false; bool ret=false;
if (divider<10) divider=10; if (divider<10) divider=10;
cycles=((int)(got.rate)<<MASTER_CLOCK_PREC)/divider; cycles=got.rate*pow(2,MASTER_CLOCK_PREC)/divider;
clockDrift+=fmod((double)((int)(got.rate)<<MASTER_CLOCK_PREC),(double)divider); clockDrift+=fmod(got.rate*pow(2,MASTER_CLOCK_PREC),(double)divider);
if (clockDrift>=divider) { if (clockDrift>=divider) {
clockDrift-=divider; clockDrift-=divider;
cycles++; cycles++;