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giga-refactor, part 7

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tildearrow 2025-11-15 05:09:11 -05:00
parent a1bca68e4a
commit 7bb770ad01
1 changed files with 65 additions and 21 deletions
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86
src/engine/engine.cpp
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@ -995,7 +995,32 @@ void DivEngine::delUnusedSamples() {
}
bool DivEngine::sysChanCountChange(int firstChan, int before, int after) {
if (song.chans-before+after>DIV_MAX_CHANS) {
return false;
}
int chanMovement=after-before;
int lastChan=firstChan+before;
if (chanMovement!=0) {
if (chanMovement>0) {
// add channels
for (int i=song.chans+chanMovement-1; i>=lastChan+chanMovement; i--) {
swapChannels(i,i-chanMovement);
}
for (int i=lastChan; i<lastChan+chanMovement; i++) {
stompChannel(i);
}
} else {
// remove channels
for (int i=lastChan+chanMovement; i<lastChan; i++) {
stompChannel(i);
}
for (int i=lastChan+chanMovement; i<song.chans+chanMovement; i++) {
swapChannels(i,i-chanMovement);
}
}
}
return true;
}
bool DivEngine::changeSystem(int index, DivSystem which, bool preserveOrder) {
@ -1009,34 +1034,16 @@ bool DivEngine::changeSystem(int index, DivSystem which, bool preserveOrder) {
return false;
}
int chanCount=song.chans;
quitDispatch();
BUSY_BEGIN;
saveLock.lock();
if (!preserveOrder) {
int firstChan=0;
int chanMovement=newChanCount-song.systemChans[index];
while (song.dispatchOfChan[firstChan]!=index) firstChan++;
int lastChan=firstChan+song.systemChans[index];
if (chanMovement!=0) {
if (chanMovement>0) {
// add channels
for (int i=chanCount+chanMovement-1; i>=lastChan+chanMovement; i--) {
swapChannels(i,i-chanMovement);
}
for (int i=lastChan; i<lastChan+chanMovement; i++) {
stompChannel(i);
}
} else {
// remove channels
for (int i=lastChan+chanMovement; i<lastChan; i++) {
stompChannel(i);
}
for (int i=lastChan+chanMovement; i<chanCount+chanMovement; i++) {
swapChannels(i,i-chanMovement);
}
}
if (!sysChanCountChange(firstChan,song.systemChans[index],newChanCount)) {
logE("it should not be failing here!");
abort();
}
}
@ -1055,6 +1062,43 @@ bool DivEngine::changeSystem(int index, DivSystem which, bool preserveOrder) {
return true;
}
bool DivEngine::setSystemChans(int index, int ch, bool preserveOrder) {
if (index<0 || index>=song.systemLen) {
lastError=_("invalid index");
return false;
}
if (song.chans-song.systemChans[index]+ch>DIV_MAX_CHANS) {
lastError=fmt::sprintf(_("max number of total channels is %d"),DIV_MAX_CHANS);
return false;
}
quitDispatch();
BUSY_BEGIN;
saveLock.lock();
if (!preserveOrder) {
int firstChan=0;
while (song.dispatchOfChan[firstChan]!=index) firstChan++;
if (!sysChanCountChange(firstChan,song.systemChans[index],ch)) {
logE("it should not be failing here!");
abort();
}
}
song.systemChans[index]=ch;
song.systemFlags[index].clear();
song.recalcChans();
saveLock.unlock();
BUSY_END;
initDispatch();
BUSY_BEGIN;
renderSamples();
reset();
BUSY_END;
return true;
}
bool DivEngine::addSystem(DivSystem which) {
if (song.systemLen>=DIV_MAX_CHIPS) {
lastError=fmt::sprintf(_("max number of systems is %d"),DIV_MAX_CHIPS);