private void RequestThreadEntryPoint(object state)
{
RasterDataDetails details = (RasterDataDetails)state;
details.WorkerWindow.Context.MakeCurrent();
while (true)
{
TileLoadRequest request = null;
lock (details.RequestList)
{
LinkedListNode <TileLoadRequest> lastNode = details.RequestList.Last;
if (lastNode != null)
{
request = lastNode.Value;
details.RequestList.RemoveLast();
}
else
{
Monitor.Wait(details.RequestList);
lastNode = details.RequestList.Last;
if (lastNode != null)
{
request = lastNode.Value;
details.RequestList.RemoveLast();
}
}
}
if (request != null)
{
RasterTile tile = request.Tile;
request.Texture = tile.LoadTexture();
Fence fence = Device.CreateFence();
fence.ClientWait();
details.DoneQueue.Post(request);
}
}
}
public void Process(object sender, MessageQueueEventArgs e)
{
#if !SINGLE_THREADED
_context.MakeCurrent();
#endif
ShapefileRequest request = (ShapefileRequest)e.Message;
ShapefileRenderer shapefile = new ShapefileRenderer(
request.Filename, _context, _globeShape, request.Appearance);
#if !SINGLE_THREADED
Fence fence = Device.CreateFence();
while (fence.ClientWait(0) == ClientWaitResult.TimeoutExpired)
{
Thread.Sleep(10); // Other work, etc.
}
#endif
_doneQueue.Post(shapefile);
}