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VGM export: write loop point

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proper channel reset after loop pending!!!
This commit is contained in:
tildearrow 2022-01-25 16:44:21 -05:00
parent 503a79c904
commit 3672ceccb7
1 changed files with 14 additions and 5 deletions
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19
src/engine/engine.cpp
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@ -2035,7 +2035,7 @@ void DivEngine::walkSong(int& loopOrder, int& loopRow) {
DivPattern* pat[DIV_MAX_CHANS];
for (int i=0; i<song.ordersLen; i++) {
for (int j=0; j<chans; j++) {
pat[j]=song.pat[j].getPattern(i,false);
pat[j]=song.pat[j].getPattern(song.orders.ord[j][i],false);
}
for (int j=nextRow; j<song.patLen; j++) {
nextRow=0;
@ -2535,11 +2535,11 @@ SafeWriter* DivEngine::saveVGM() {
// write song data
playSub(false);
size_t tickCount=0;
bool writeLoop=false;
while (!done) {
if (loopPos==-1) {
if (loopOrder==curOrder && loopRow==curRow) {
loopPos=w->tell();
loopTick=tickCount;
if (loopOrder==curOrder && loopRow==curRow && ticks==1) {
writeLoop=true;
}
}
if (nextTick()) done=true;
@ -2612,7 +2612,14 @@ SafeWriter* DivEngine::saveVGM() {
w->writeS(totalWait);
tickCount+=totalWait;
}
if (writeLoop) {
writeLoop=false;
loopPos=w->tell();
loopTick=tickCount;
}
}
// end of song
w->writeC(0x66);
for (int i=0; i<song.systemLen; i++) {
disCont[i].dispatch->toggleRegisterDump(false);
@ -2625,8 +2632,10 @@ SafeWriter* DivEngine::saveVGM() {
w->seek(0x18,SEEK_SET);
w->writeI(tickCount);
// loop not handled for now
printf("writing loop pos: %d\n",loopPos-0x1c);
printf("writing tick count: %d\n",(int)(tickCount-loopTick));
w->writeI(loopPos-0x1c);
w->writeI(tickCount-loopTick);
w->writeI(tickCount-loopTick-1);
remainingLoops=-1;
playing=false;