public bool Open(FieldOfUse fieldOfUse, StreamEngineTracker_Description description)
{
IntPtr apiContext;
if (Context != null)
{
throw new InvalidOperationException("There is already an instantiated connection");
}
if (CreateApiContext(_interop, out apiContext, _customLog) == false)
{
return(false);
}
List <string> connectedDevices;
if (GetAvailableTrackers(_interop, apiContext, out connectedDevices) == false)
{
DestroyApiContext(_interop, apiContext);
return(false);
}
IntPtr deviceContext;
string hmdEyeTrackerUrl;
var interopFieldOfUse = fieldOfUse == FieldOfUse.Interactive ? Interop.tobii_field_of_use_t.TOBII_FIELD_OF_USE_INTERACTIVE : Interop.tobii_field_of_use_t.TOBII_FIELD_OF_USE_ANALYTICAL;
if (GetFirstSupportedTracker(_interop, apiContext, interopFieldOfUse, connectedDevices, description, out deviceContext, out hmdEyeTrackerUrl) == false)
{
DestroyApiContext(_interop, apiContext);
return(false);
}
Context = new StreamEngineContext(apiContext, deviceContext, hmdEyeTrackerUrl);
return(true);
}
public void Destroy()
{
if (_streamEngineContext == null)
{
return;
}
var result = Interop.tobii_device_destroy(_streamEngineContext.Device);
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
UnityEngine.Debug.LogError(string.Format("Failed to destroy device context. Error {0}", result));
}
result = Interop.tobii_api_destroy(_streamEngineContext.Api);
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
UnityEngine.Debug.LogError(string.Format("Failed to destroy api context. Error {0}", result));
}
UnityEngine.Debug.Log(string.Format("Destroyed SE tracker {0}", _streamEngineContext.Url));
_streamEngineContext = null;
_stopwatch = null;
}
public bool Open(StreamEngineTracker_Description description)
{
IntPtr apiContext;
if (Context != null)
{
throw new InvalidOperationException("There is already an instantiated connection");
}
if (CreateApiContext(_interop, out apiContext, _customLog) == false)
{
return(false);
}
List <string> connectedDevices;
if (GetAvailableTrackers(_interop, apiContext, out connectedDevices) == false)
{
DestroyApiContext(_interop, apiContext);
return(false);
}
IntPtr deviceContext;
string hmdEyeTrackerUrl;
if (GetFirstSupportedTracker(_interop, apiContext, connectedDevices, description, out deviceContext, out hmdEyeTrackerUrl) == false)
{
DestroyApiContext(_interop, apiContext);
return(false);
}
Context = new StreamEngineContext(apiContext, deviceContext, hmdEyeTrackerUrl);
return(true);
}
public static void Disconnect(IStreamEngineInterop interop, StreamEngineContext context)
{
if (context == null)
{
return;
}
DestroyDeviceContext(interop, context.Device);
DestroyApiContext(interop, context.Api);
}
public void Close()
{
if (Context == null)
{
return;
}
DestroyDeviceContext(_interop, Context.Device);
DestroyApiContext(_interop, Context.Api);
Context = null;
}
public static bool TryConnect(IStreamEngineInterop interop, StreamEngineTracker_Description description, out StreamEngineContext context, tobii_custom_log_t customLog = null)
{
_stopwatch.Reset();
_stopwatch.Start();
context = null;
IntPtr apiContext;
if (CreateApiContext(interop, out apiContext, customLog) == false)
{
return(false);
}
try
{
List <string> connectedDevices;
if (GetAvailableTrackers(interop, apiContext, out connectedDevices) == false)
{
DestroyApiContext(interop, apiContext);
return(false);
}
IntPtr deviceContext;
string hmdEyeTrackerUrl;
if (GetFirstSupportedTracker(interop, apiContext, connectedDevices, description, out deviceContext, out hmdEyeTrackerUrl) == false)
{
DestroyApiContext(interop, apiContext);
return(false);
}
context = new StreamEngineContext(apiContext, deviceContext, hmdEyeTrackerUrl);
_stopwatch.Stop();
UnityEngine.Debug.Log(string.Format("Connected to SE tracker: {0} and it took {1}ms",
context.Url, _stopwatch.ElapsedMilliseconds));
return(true);
}
catch (Exception e)
{
UnityEngine.Debug.LogError("Error connecting to eye tracker: " + e.ToString());
return(false);
}
}
private static bool TryConnectToTracker(ref StreamEngineContext streamEngineContext, Stopwatch stopwatch)
{
StartStopwatch(stopwatch);
IntPtr apiContext;
if (CreateApiContext(out apiContext) == false)
{
return(false);
}
List <string> connectedDevices;
if (GetAvailableTrackers(apiContext, out connectedDevices) == false)
{
return(false);
}
string hmdEyeTrackerUrl;
if (GetUrlForHmdTracker(connectedDevices, out hmdEyeTrackerUrl) == false)
{
return(false);
}
IntPtr deviceContext;
if (CreateDevice(hmdEyeTrackerUrl, apiContext, out deviceContext) == false)
{
return(false);
}
streamEngineContext = new StreamEngineContext(apiContext, deviceContext, hmdEyeTrackerUrl);
var elapsedTime = StopStopwatch(stopwatch);
UnityEngine.Debug.Log(string.Format("Connected to SE tracker: {0} and it took {1}ms", hmdEyeTrackerUrl, elapsedTime));
return(true);
}
