public bool InitializeWithLicense(string licenseKey, bool enableAdvanced)
{
var createInfo = new StreamEngineTracker_Description();
if (!string.IsNullOrEmpty(licenseKey))
{
createInfo.License = new[] { licenseKey };
}
try
{
_hmdToWorldTransformer = new HmdToWorldTransformer(estimatedEyeTrackerLatency_s: 0.012f);
_streamEngineTracker = new StreamEngineTracker(createInfo);
// Subscribe to relevant streams
var startInfo = new StreamEngineTrackerStartInfo();
if (enableAdvanced)
{
startInfo.WearableAdvancedDataCallback = OnAdvancedWearableData;
}
else
{
startInfo.WearableDataCallback = OnWearableData;
}
_streamEngineTracker.Start(startInfo);
return(true);
}
catch (Exception e)
{
Debug.Log(e.Message);
return(false);
}
}
public void Start(StreamEngineTrackerStartInfo startInfo)
{
// Subscribe to requested streams
tobii_error_t result;
if (startInfo.WearableDataCallback != null)
{
_wearableDataCallbackPointer = GCHandle.Alloc(startInfo.WearableDataCallback);
result = Interop.tobii_wearable_consumer_data_subscribe(Context.Device, WearableDataCallback, GCHandle.ToIntPtr(_wearableDataCallbackPointer));
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
throw new Exception("Failed to subscribe to eye tracking data: " + result);
}
}
if (startInfo.WearableAdvancedDataCallback != null)
{
_wearableAdvancedDataCallbackPointer = GCHandle.Alloc(startInfo.WearableAdvancedDataCallback);
result = Interop.tobii_wearable_advanced_data_subscribe(Context.Device, AdvancedWearableDataCallback, GCHandle.ToIntPtr(_wearableAdvancedDataCallbackPointer));
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
throw new Exception("Failed to subscribe to eye tracking data: " + result);
}
}
if (startInfo.WearableFoveatedDataCallback != null)
{
_wearableFoveatedDataCallbackPointer = GCHandle.Alloc(startInfo.WearableFoveatedDataCallback);
result = Interop.tobii_wearable_foveated_gaze_subscribe(Context.Device, WearableFoveatedGazeCallback, GCHandle.ToIntPtr(_wearableFoveatedDataCallbackPointer));
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
throw new Exception("Failed to subscribe to eye tracking data: " + result);
}
}
}