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try to unglitch the sample loops again

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this time it works better but it slightly moves the song clock...
will look at it when i wake up
This commit is contained in:
tildearrow 2022-01-25 03:34:11 -05:00
parent e8163b71e2
commit b527fc06b2
1 changed files with 41 additions and 16 deletions
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57
src/engine/engine.cpp
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@ -2497,34 +2497,59 @@ SafeWriter* DivEngine::saveVGM() {
loopTimer[i]-=(loopFreq[i]/44100.0)*(double)totalWait;
}
}
bool haveNegatives=false;
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
if (loopTimer[i]<0) {
double waitTime=totalWait+(loopTimer[i]*(44100.0/loopFreq[i]));
haveNegatives=true;
}
}
}
while (haveNegatives) {
// finish all negatives
int nextToTouch=-1;
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
if (loopTimer[i]<0) {
if (nextToTouch>=0) {
if (loopTimer[nextToTouch]>loopTimer[i]) nextToTouch=i;
} else {
nextToTouch=i;
}
}
}
}
if (nextToTouch>=0) {
double waitTime=totalWait+(loopTimer[nextToTouch]*(44100.0/loopFreq[nextToTouch]));
if (waitTime>0) {
w->writeC(0x61);
w->writeS(waitTime);
printf("wait is: %f\n",waitTime);
totalWait-=waitTime;
tickCount+=waitTime;
if (loopSample[i]<song.sampleLen) {
DivSample* sample=song.sample[loopSample[i]];
// insert loop
if (sample->loopStart<(int)sample->rendLength) {
w->writeC(0x93);
w->writeC(i);
w->writeI(sample->rendOffContiguous+sample->loopStart);
w->writeC(0x81);
w->writeI(sample->rendLength-sample->loopStart);
}
}
loopSample[i]=-1;
}
if (loopSample[nextToTouch]<song.sampleLen) {
DivSample* sample=song.sample[loopSample[nextToTouch]];
// insert loop
if (sample->loopStart<(int)sample->rendLength) {
w->writeC(0x93);
w->writeC(nextToTouch);
w->writeI(sample->rendOffContiguous+sample->loopStart);
w->writeC(0x81);
w->writeI(sample->rendLength-sample->loopStart);
}
}
loopSample[nextToTouch]=-1;
} else {
haveNegatives=false;
}
}
// write wait
w->writeC(0x61);
w->writeS(totalWait);
tickCount+=totalWait;
if (totalWait>0) {
w->writeC(0x61);
w->writeS(totalWait);
tickCount+=totalWait;
}
}
for (int i=0; i<song.systemLen; i++) {