private int m_NextIndex = 0; // next index for the m_InFlightRequests array
// Add the specified component to the list of components with its delegates
// and scripting API observer. Components are required to register with
// the context prior to their first surface bake request. This method will
// throw ArgumentException if this component already exists in the list
// ArgumentNullException if any of the parameters are missing.
public void RegisterComponent(SpatialMappingBase smComponent, SpatialMappingBase.SurfaceDataReadyCallback onDataReady, GetHighestPriorityCallback getHighestPri, SurfaceObserver observer)
{
if (smComponent == null)
{
throw new ArgumentNullException("smComponent");
}
if (onDataReady == null)
{
throw new ArgumentNullException("onDataReady");
}
if (getHighestPri == null)
{
throw new ArgumentNullException("getHighestPri");
}
if (observer == null)
{
throw new ArgumentNullException("observer");
}
SMComponentRecord findResult = m_Components.Find(record => record.m_Component == smComponent);
if (findResult.m_Component != null)
{
throw new ArgumentException("RegisterComponent on a component already registered!");
}
SMComponentRecord rec;
rec.m_Component = smComponent;
rec.m_OnDataReady = onDataReady;
rec.m_GetHighestPri = getHighestPri;
rec.m_SurfaceObserver = observer;
m_Components.Add(rec);
}
// Components know what work there is to be done so ask the first one in the
// list for an item of work then drop it to the end of the list so that a
// really hungry component doesn't starve the rest of them out.
private void RequestMeshPriorityFromComponents()
{
// fixme: would like to do this twice if needed
if (m_InFlightSurfaces < kIdealInFlightSurfaceCount)
{
for (int ii = 0; ii < m_Components.Count; ++ii)
{
SMComponentRecord comp = m_Components[ii];
SurfaceData nextRequest;
if (comp.m_GetHighestPri(out nextRequest))
{
if (-1 == m_NextIndex || !m_InFlightRequests[m_NextIndex].IsClear())
{
Debug.LogError(System.String.Format("SMContext: next index {0} may not be clear!", m_NextIndex));
}
else
{
if (comp.m_SurfaceObserver.RequestMeshAsync(nextRequest, OnSurfaceDataReady))
{
//Debug.Log(string.Format("Attempting to Bake \"{0}\" : \"{1}\"", comp.m_Component.name, nextRequest.id.handle));
m_InFlightRequests[m_NextIndex].m_RequestData = nextRequest;
m_InFlightRequests[m_NextIndex].m_Requester = comp;
m_InFlightSurfaces++;
m_NextIndex = m_NextIndex == 1 ? 0 : 1;
// drop this component to the end of the list
// so it can't starve others out.
m_Components.RemoveAt(ii);
m_Components.Add(comp);
break;
}
else
{
// if this fires it means that something's
// misconfigured, probably in the component.
Debug.LogError("SMContext: unexpected failure requesting mesh bake!");
}
}
break;
}
}
}
}