public override Expression Build(IEnumerable <Expression> arguments)
{
var source = arguments.First();
// Find upstream ONIControllers
var visitor = new ControllerFinder();
visitor.Visit(source);
if (visitor.Controllers.Count == 0)
{
throw new Bonsai.WorkflowBuildException("Could not associate with upstream ONI hardware controller.");
}
Controller.Controllers = visitor.Controllers;
if (Controller.SelectedController != null)
{
var devices = ONIHelpers.FindMachingDevices(Controller.SelectedController.AcqContext, ID);
if (devices.Count == 0)
{
throw new Bonsai.WorkflowBuildException("Device was not found in device table.");
}
DeviceIndex.Indices = devices.Keys.ToArray();
}
// Create Sink
var thisType = GetType();
var method = thisType.GetMethod(nameof(Process));
var instance = Expression.Constant(this);
return(Expression.Call(instance, method, new[] { source }));
}
public override Expression Build(IEnumerable <Expression> arguments)
{
var source = arguments.First();
// Find upstream ONIController
var visitor = new ControllerFinder();
visitor.Visit(source);
if (visitor.Controllers.Count != 1)
{
// Never should contain more than 1 because must be attached to a frame source directly
throw new Bonsai.WorkflowBuildException("ONI FrameReader Device is attached to multiple ONI controllers.");
}
Controller = visitor.Controllers[0];
// Find valid device indices
var devices = ONIHelpers.FindMachingDevices(Controller.AcqContext, ID);
if (devices.Count == 0)
{
throw new Bonsai.WorkflowBuildException("Device was not found in device table.");
}
DeviceIndex.Indices = devices.Keys.ToArray();
// Update device-specific clocks
UpdateClocks();
// Schedule clock update if device index changes
DeviceIndex.IndexChanged += UpdateClocks;
// Create combinator
var thisType = GetType();
var method = thisType.GetMethod(nameof(Process));
var instance = Expression.Constant(this);
return(Expression.Call(instance, method, new[] { source }));
}