std::vector<AudioChannel*> getAudioEvents( std::vector<AudioChannel*> channels, int bufferPosition,
int bufferEnd, bool addLiveInstruments )
{
// clear previous channel contents (note we don't delete the channels anywhere as we re-use them)
channels.clear();
int i, l;
// note we update the channels mix properties here as they might change during playback
for ( i = 0, l = instruments.size(); i < l; ++i )
{
BaseInstrument* instrument = instruments.at( i );
AudioChannel* instrumentChannel = instrument->audioChannel;
instrumentChannel->reset();
instrumentChannel->mixVolume = instrument->volume;
if ( !instrumentChannel->muted )
{
if ( AudioEngine::playing )
collectSequencedEvents( instrument, bufferPosition, bufferEnd );
if ( addLiveInstruments && instrument->hasLiveEvents() )
collectLiveEvents( instrument );
channels.push_back( instrumentChannel );
}
}
return channels;
}
bool Sequencer::getAudioEvents( std::vector<AudioChannel*>* channels, int bufferPosition,
int bufferSize, bool addLiveInstruments, bool flushChannels )
{
channels->clear();
int bufferEnd = bufferPosition + ( bufferSize - 1 ); // the highest SampleEnd value we'll query
bool loopStarted = bufferEnd > AudioEngine::max_buffer_position; // whether this request exceeds the min_buffer_position - max_buffer_position range
int i, l;
// note we update the channels mix properties here as they might change during playback
for ( i = 0, l = ( int ) instruments.size(); i < l; ++i )
{
BaseInstrument* instrument = instruments.at( i );
AudioChannel* instrumentChannel = instrument->audioChannel;
// clear previous channel contents when requested
if ( flushChannels )
instrumentChannel->reset();
if ( !instrumentChannel->muted )
{
if ( playing )
collectSequencedEvents( instrument, bufferPosition, bufferEnd );
if ( addLiveInstruments && instrument->hasLiveEvents() )
collectLiveEvents( instrument );
channels->push_back( instrumentChannel );
}
}
return loopStarted;
}
TEST( BaseAudioEvent, AddRemoveSequencer )
{
BaseInstrument* instrument = new BaseInstrument();
BaseAudioEvent* audioEvent = new BaseAudioEvent( instrument );
// expect AudioEvent not be in any of the event queues of the instrument after construction
bool found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the event list after construction";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the live event list after construction";
// 1. add the event to the sequencer
audioEvent->addToSequencer();
// expect AudioEvent to be in the sequenced event list, not the live list
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_TRUE( found )
<< "expected event to be present in the event list after addition";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the live event list after addition";
// 2. remove the event from the sequencer
audioEvent->removeFromSequencer();
// expect AudioEvent not to be in the sequenced event list anymore
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the event list after removal";
// 3. add live event to the sequencer
audioEvent->isSequenced = false;
audioEvent->addToSequencer();
// expect AudioEvent to be in the live event list, not the sequenced list
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected live event not to be present in the sequenced event list after addition";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_TRUE( found )
<< "expected live event to be present in the live event list after addition";
// 4. remove live event from sequencer
audioEvent->removeFromSequencer();
// expect AudioEvent not be in any of the event queues of the instrument after removal
found = false;
for ( int i = 0; i < instrument->getEvents()->size(); ++i )
{
if ( instrument->getEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the event list after removal";
found = false;
for ( int i = 0; i < instrument->getLiveEvents()->size(); ++i )
{
if ( instrument->getLiveEvents()->at( i ) == audioEvent )
found = true;
}
ASSERT_FALSE( found )
<< "expected event not to be present in the live event list after removal";
delete audioEvent;
delete instrument;
}
