void UpdateDeviceInternal(UpdateDevice update)
{
CameraInstance selected = update.Body.Selected;
bool updated = false;
if (_state.Selected != null &&
_state.Selected.FrameGrabber != null)
{
_state.Selected.FrameGrabber.StopCapture();
_state.Selected.FrameGrabber.Dispose();
_state.Selected = null;
}
foreach (object obj in new vision.CameraCollection())
{
using (vision.Camera camera = obj as vision.Camera)
{
if ((!string.IsNullOrEmpty(selected.FriendlyName) && camera.Name == selected.FriendlyName) ||
(!string.IsNullOrEmpty(selected.DevicePath) && camera.Path == selected.DevicePath))
{
selected.FriendlyName = camera.Name;
selected.DevicePath = selected.DevicePath;
selected.FrameGrabber = vision.FrameGrabber.FromCamera(camera);
selected.SupportedFormats = ConvertFormats(selected.FrameGrabber.Formats);
selected.FrameGrabber.CaptureFrame += OnCaptureFrame;
selected.FrameGrabber.StartCapture();
selected.Format = new Format(selected.FrameGrabber.Format);
updated = true;
break;
}
}
}
if (updated)
{
_state.Selected = selected;
update.ResponsePort.Post(DefaultUpdateResponseType.Instance);
SendNotification(_submgrPort, update);
}
else
{
update.ResponsePort.Post(
Fault.FromCodeSubcodeReason(FaultCodes.Receiver,
DsspFaultCodes.UnknownEntry,
"Camera not found"
)
);
}
}
IEnumerator <ITask> GetInitialState(Srv1CameraState initialState)
{
Srv1CameraState state = new Srv1CameraState();
state.CaptureFile = initialState.CaptureFile;
state.Quality = initialState.Quality;
yield return(InitializeInternalService());
foreach (object obj in new vision.CameraCollection())
{
using (vision.Camera camera = obj as vision.Camera)
{
CameraInstance instance = new CameraInstance();
instance.FriendlyName = camera.Name;
instance.DevicePath = camera.Path;
instance.SupportedFormats = ConvertFormats(camera.Formats);
state.Cameras.Add(instance);
}
}
state.Image = null;
Replace replace = new Replace();
replace.Body = state;
_fwdPort.Post(replace);
yield return(Arbiter.Choice(
replace.ResponsePort,
delegate(DefaultReplaceResponseType success) { },
delegate(Fault fault)
{
LogError(null, "Unable to set camera list", fault);
}
));
UpdateDeviceRequest request = new UpdateDeviceRequest();
if (initialState.Selected != null)
{
request.Selected = initialState.Selected;
}
else if (state.Cameras.Count > 0)
{
request.Selected = state.Cameras[0];
}
else
{
yield break;
}
UpdateDevice update = new UpdateDevice();
update.Body = request;
_fwdPort.Post(update);
yield return(Arbiter.Choice(
update.ResponsePort,
delegate(DefaultUpdateResponseType success) { },
delegate(Fault fault)
{
LogError(null, "Unable to select camera", fault);
}
));
if (initialState.Selected == null ||
initialState.Selected.Format == null)
{
yield break;
}
UpdateFormat updateFormat = new UpdateFormat();
updateFormat.Body = initialState.Selected.Format;
_fwdPort.Post(updateFormat);
yield return(Arbiter.Choice(
updateFormat.ResponsePort,
delegate(DefaultUpdateResponseType success) { },
delegate(Fault fault)
{
LogError(null, "Unable to select format", fault);
}
));
}