private static bool CreateDeviceContext(IStreamEngineInterop interop, string url, Interop.tobii_field_of_use_t fieldOfUse, IntPtr apiContext, string[] licenseKeys, out IntPtr deviceContext)
{
if (licenseKeys == null || licenseKeys.Length == 0)
{
return(interop.tobii_device_create(apiContext, url, fieldOfUse, out deviceContext) == tobii_error_t.TOBII_ERROR_NO_ERROR);
}
var licenseResults = new List <tobii_license_validation_result_t>();
var result = interop.tobii_device_create_ex(apiContext, url, fieldOfUse, licenseKeys, licenseResults, out deviceContext);
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
UnityEngine.Debug.LogError(string.Format("Failed to create device context for {0}. {1}", url, result));
return(false);
}
for (int i = 0; i < licenseKeys.Length; i++)
{
var licenseResult = licenseResults[i];
if (licenseResult == tobii_license_validation_result_t.TOBII_LICENSE_VALIDATION_RESULT_OK)
{
continue;
}
UnityEngine.Debug.LogError("License " + licenseKeys[i] + " failed. Return code " + licenseResult);
}
return(true);
}
public tobii_error_t tobii_device_create(IntPtr api, string url, Interop.tobii_field_of_use_t field_of_use, out IntPtr device)
{
return(Interop.tobii_device_create(api, url, field_of_use, out device));
}
public tobii_error_t tobii_device_create_ex(IntPtr api, string url, Interop.tobii_field_of_use_t field_of_use, string[] license_keys, List <tobii_license_validation_result_t> license_results, out IntPtr device)
{
return(Interop.tobii_device_create_ex(api, url, field_of_use, license_keys, license_results, out device));
}
private static bool GetFirstSupportedTracker(IStreamEngineInterop interop, IntPtr apiContext, Interop.tobii_field_of_use_t fieldOfUse, IList <string> connectedDevices, StreamEngineTracker_Description description, out IntPtr deviceContext, out string deviceUrl)
{
deviceContext = IntPtr.Zero;
deviceUrl = "";
for (var i = 0; i < connectedDevices.Count; i++)
{
var connectedDeviceUrl = connectedDevices[i];
if (CreateDeviceContext(interop, connectedDeviceUrl, fieldOfUse, apiContext, description.License, out deviceContext) == false)
{
continue;
}
tobii_device_info_t info;
var result = interop.tobii_get_device_info(deviceContext, out info);
if (result != tobii_error_t.TOBII_ERROR_NO_ERROR)
{
DestroyDeviceContext(interop, deviceContext);
UnityEngine.Debug.LogWarning("Failed to get device info. " + result);
continue;
}
var integrationType = info.integration_type.ToLowerInvariant();
if (integrationType != description.SupportedIntegrationType)
{
DestroyDeviceContext(interop, deviceContext);
continue;
}
deviceUrl = connectedDeviceUrl;
return(true);
}
UnityEngine.Debug.LogWarning(string.Format("Failed to find Tobii eye trackers of integration type {0}", description.SupportedIntegrationType));
return(false);
}