EngineBuffer* EngineControl::pickSyncTarget() {
EngineMaster* pMaster = getEngineMaster();
if (!pMaster) {
return NULL;
}
QString group = getGroup();
EngineBuffer* pFirstNonplayingDeck = NULL;
for (int i = 0; i < m_numDecks.get(); ++i) {
QString deckGroup = PlayerManager::groupForDeck(i);
if (deckGroup == group) {
continue;
}
EngineChannel* pChannel = pMaster->getChannel(deckGroup);
// Only consider channels that have a track loaded and are in the master
// mix.
if (pChannel && pChannel->isActive() && pChannel->isMaster()) {
EngineBuffer* pBuffer = pChannel->getEngineBuffer();
if (pBuffer && pBuffer->getBpm() > 0) {
// If the deck is playing then go with it immediately.
if (fabs(pBuffer->getSpeed()) > 0) {
return pBuffer;
}
// Otherwise hold out for a deck that might be playing but
// remember the first deck that matched our criteria.
if (pFirstNonplayingDeck == NULL) {
pFirstNonplayingDeck = pBuffer;
}
}
}
}
// No playing decks have a BPM. Go with the first deck that was stopped but
// had a BPM.
return pFirstNonplayingDeck;
}
EngineBuffer* EngineControl::pickSyncTarget() {
EngineMaster* pMaster = getEngineMaster();
if (!pMaster) {
return NULL;
}
EngineSync* pEngineSync = pMaster->getEngineSync();
if (pEngineSync == NULL) {
return NULL;
}
// TODO(rryan): Remove. This is a linear search over groups in
// EngineMaster. We should pass the EngineChannel into EngineControl.
EngineChannel* pThisChannel = pMaster->getChannel(getGroup());
EngineChannel* pChannel = pEngineSync->pickNonSyncSyncTarget(pThisChannel);
return pChannel ? pChannel->getEngineBuffer() : NULL;
}