MappedInstrument::MappedInstrument(const Instrument &instr):
m_type(instr.getType()),
m_id(instr.getId()),
m_name(instr.getName()),
m_device((instr.getDevice())->getId()),
m_audioChannels(instr.getAudioChannels())
{}
// Make the channel ready to play on. Send the program, etc.
// @author Tom Breton (Tehom)
void
TrackInfo::makeChannelReady(Studio &studio)
{
#ifdef DEBUG_CONTROL_BLOCK
RG_DEBUG << "TrackInfo::makeChannelReady()"
<< endl;
#endif
Instrument *instrument =
studio.getInstrumentById(m_instrumentId);
// If we have deleted a device, we may get a NULL instrument. In
// that case, we can't do much.
if (!instrument) {
return;
}
// We can get non-Midi instruments here. There's nothing to do
// for them. For fixed, sendChannelSetup is slightly wrong, but
// could be adapted and parameterized by trackId.
if ((instrument->getType() == Instrument::Midi)
&& !m_useFixedChannel) {
// Re-acquire channel. It may change if instrument's program
// became percussion or became non-percussion.
Device* device = instrument->getDevice();
Q_CHECK_PTR(device);
AllocateChannels *allocator = device->getAllocator();
if (allocator) {
m_thruChannel =
allocator->reallocateThruChannel(*instrument, m_thruChannel);
// If somehow we got here without having a channel, we
// have one now.
m_hasThruChannel = true;
#ifdef DEBUG_CONTROL_BLOCK
RG_DEBUG << "TrackInfo::makeChannelReady() now has channel"
<< m_hasThruChannel
<< endl;
#endif
}
// This is how Midi instrument readies a fixed channel.
StudioControl::sendChannelSetup(instrument, m_thruChannel);
}
m_isThruChannelReady = true;
}