private void FindComponents(MMALDownstreamComponent downstream, List <MMALDownstreamComponent> list)
{
if (downstream.Outputs.Count == 0)
{
return;
}
if (downstream.Outputs.Count == 1 && downstream.Outputs[0].ConnectedReference == null)
{
list.Add(downstream);
return;
}
if (downstream.GetType().BaseType == typeof(MMALDownstreamHandlerComponent))
{
list.Add((MMALDownstreamHandlerComponent)downstream);
}
foreach (var output in downstream.Outputs)
{
if (output.ConnectedReference != null)
{
this.FindComponents(output.ConnectedReference.DownstreamComponent, list);
}
}
}
/// <inheritdoc />
public override InputPortBase ConnectTo(MMALDownstreamComponent destinationComponent, int inputPort = 0, bool useCallback = false)
{
if (this.ConnectedReference != null)
{
MMALLog.Logger.Warn("A connection has already been established on this port");
return(destinationComponent.Inputs[inputPort]);
}
var connection = MMALConnectionImpl.CreateConnection(this, destinationComponent.Inputs[inputPort], destinationComponent, useCallback);
this.ConnectedReference = connection;
destinationComponent.Inputs[inputPort].ConnectedReference = connection;
return(destinationComponent.Inputs[inputPort]);
}
public MMALPortBase ConnectTo(MMALDownstreamComponent destinationComponent, int inputPort = 0)
{
if (MMALCamera.Instance.Connections.Any(c => c.UpstreamComponent == this.ComponentReference &&
c.DownstreamComponent == destinationComponent))
{
MMALLog.Logger.Warn("A connection has already been established between these components");
return(destinationComponent.Inputs[inputPort]);
}
var connection = MMALConnectionImpl.CreateConnection(this, destinationComponent.Inputs[inputPort], destinationComponent);
MMALCamera.Instance.Connections.Add(connection);
return(destinationComponent.Inputs[inputPort]);
}
/// <summary>
/// Facility to create a connection between two port objects
/// </summary>
/// <param name="output">The output port of the connection</param>
/// <param name="input">The input port of the connection</param>
/// <returns></returns>
internal static MMALConnectionImpl CreateConnection(MMALPortBase output, MMALPortBase input, MMALDownstreamComponent inputComponent)
{
IntPtr ptr = IntPtr.Zero;
MMALCheck(MMALConnection.mmal_connection_create(&ptr, output.Ptr, input.Ptr, MMALConnection.MMAL_CONNECTION_FLAG_TUNNELLING | MMALConnection.MMAL_CONNECTION_FLAG_ALLOCATION_ON_INPUT), "Unable to create connection");
return(new MMALConnectionImpl((MMAL_CONNECTION_T *)ptr, output, input, inputComponent, output.ComponentReference));
}
protected MMALConnectionImpl(MMAL_CONNECTION_T *ptr, MMALPortBase output, MMALPortBase input, MMALDownstreamComponent inputComponent, MMALComponentBase outputComponent)
{
this.Ptr = ptr;
this.OutputPort = output;
this.InputPort = input;
this.DownstreamComponent = inputComponent;
this.UpstreamComponent = outputComponent;
this.Enable();
}
protected MMALConnectionImpl(MMAL_CONNECTION_T *ptr, MMALPortBase output, MMALPortBase input, MMALDownstreamComponent inputComponent, MMALComponentBase outputComponent, bool useCallback)
{
this.Ptr = ptr;
this.OutputPort = output;
this.InputPort = input;
this.DownstreamComponent = inputComponent;
this.UpstreamComponent = outputComponent;
if (useCallback)
{
this.ConfigureConnectionCallback(output, input);
}
this.Enable();
if (useCallback)
{
this.OutputPort.SendAllBuffers();
}
}
/// <inheritdoc />
public override InputPortBase ConnectTo(MMALDownstreamComponent destinationComponent, int inputPort, Func <PortBase> callback)
{
this.ConnectTo(destinationComponent, inputPort);
callback();
return(destinationComponent.Inputs[inputPort]);
}
