void Port::acquireInputBuffer (BufferProvider &provider, nframes_t len)
{
int numConnections = dependencies().count();
switch (numConnections) {
case 0:
if (type() == AudioPort) {
// Use silence
m_buffer = provider.zeroAudioBuffer();
return;
}
break;
case 1:
{
// Use the other port's buffer
// type should match due to validation on connect
Port *other = static_cast<Port *>( *(dependencies().begin()) );
m_buffer = other->buffer();
break;
}
default:
qFatal("Internal mixing is not yet supported");
return;
}
if (!m_buffer) {
// Return internal port
m_buffer = provider.acquire(type(), len);
updateBufferValue();
}
}
void Port::acquireOutputBuffer (BufferProvider &provider, nframes_t len)
{
int numConnections = dependents().count();
if (numConnections == 1) {
// Use the other port's buffer
Port *other = static_cast<Port *>( *(dependents().begin()) );
m_buffer = other->buffer();
}
else if (numConnections == 2) {
qFatal("Internal mixing is not yet supported");
}
if (!m_buffer) {
m_buffer = provider.acquire(type(), len);
}
}
