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;
}