internal void EarlyUpdate()
{
// Get the latest session handle from presto.
IntPtr sessionHandle = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref sessionHandle);
// Update the display geometry if there is a non-null session.
if (sessionHandle != IntPtr.Zero)
{
_SetDisplayGeometry(sessionHandle, Screen.orientation, Screen.width, Screen.height);
}
// Update ArPresto and potentially ArCore.
ExternApi.ArPresto_update();
// Update pending AsyncTasks.
AsyncTask.OnUpdate();
// Update the lifecycle state.
_UpdateState();
// Return if there is no session component in the scene.
if (SessionComponent == null)
{
return;
}
ExternApi.ArPresto_getSession(ref sessionHandle);
IntPtr frameHandle = IntPtr.Zero;
ExternApi.ArPresto_getFrame(ref frameHandle);
if (NativeSession == null && sessionHandle != IntPtr.Zero)
{
NativeSession = new NativeSession(sessionHandle, frameHandle);
NativeSession.SessionApi.ReportEngineType();
}
if (NativeSession != null)
{
NativeSession.OnUpdate(frameHandle);
}
SetConfiguration(SessionComponent.SessionConfig);
_UpdateTextureIfNeeded();
InstantPreviewManager.OnEarlyUpdate();
if (EarlyUpdateEvent != null)
{
EarlyUpdateEvent();
}
}
private void _EarlyUpdate()
{
AsyncTask.OnUpdate();
_UpdateTextureIfNeeded();
if (m_SessionComponent != null)
{
var config = m_SessionComponent.SessionConfig;
if (config != null)
{
ExternApi.ArPresto_setConfiguration(new ApiPrestoConfig(config));
}
}
if (m_NativeSession != null)
{
m_NativeSession.SessionApi.SetDisplayGeometry(
Screen.orientation, Screen.width, Screen.height);
m_NativeSession.OnUpdate();
}
InstantPreviewManager.OnEarlyUpdate(m_SessionComponent);
}
