Method executeFMStepEvents

BambooTracker/playback.cpp:486–541

}

void PlaybackManager::executeFMStepEvents(const Step& step, int ch, bool calledByNoteDelay)
{
	if (!calledByNoteDelay && !step.isEmptyNote()) clearFMDelayBeyondStepCounts(ch);	// Except no key event

	// Set volume
	int vol = step.getVolume();
	if (step.hasVolume() && vol < bt_defs::NSTEP_FM_VOLUME) {
		opnaCtrl_->setVolumeFM(ch, vol);
	}

	// Set instrument
	if (step.hasInstrument()) {
		if (auto inst = std::dynamic_pointer_cast<InstrumentFM>(
					instMan_.lock()->getInstrumentSharedPtr(step.getInstrumentNumber())))
			opnaCtrl_->setInstrumentFM(ch, inst);
	}
	else {
		opnaCtrl_->restoreFMEnvelopeFromReset(ch);
	}

	// Set effect
	executeStoredEffectsFM(ch);

	// Set key
	int noteNum = step.getNoteNumber();
	switch (noteNum) {
	case Step::NOTE_NONE:
		if (!calledByNoteDelay) {
			// When this is called by note delay, skip delay check because it has already checked.
			checkFMDelayEventsInTick(step, ch);
		}
		opnaCtrl_->tickEvent(SoundSource::FM, ch);
		break;
	case Step::NOTE_KEY_OFF:
		opnaCtrl_->keyOffFM(ch);
		break;
	case Step::NOTE_KEY_CUT:
		opnaCtrl_->resetFMChannelEnvelope(ch);
		break;
	case Step::NOTE_ECHO0:
		opnaCtrl_->keyOnFM(ch, 0);
		break;
	case Step::NOTE_ECHO1:
		opnaCtrl_->keyOnFM(ch, 1);
		break;
	case Step::NOTE_ECHO2:
		opnaCtrl_->keyOnFM(ch, 2);
		break;
	case Step::NOTE_ECHO3:
		opnaCtrl_->keyOnFM(ch, 3);
		break;
	default:	// Key on
		opnaCtrl_->keyOnFM(ch, Note(noteNum));
		break;
	}
}

void PlaybackManager::executeSSGStepEvents(const Step& step, int ch, bool calledByNoteDelay)