/// <summary>
/// Create a cache of the entire sequence command outputs
/// </summary>
private void _BuildSequenceCache()
{
//Need some hooks in here for progess....... Need to think about that.
//Stop the output devices from driving the execution engine.
VixenSystem.OutputDeviceManagement.PauseAll();
IEnumerable <IContext> runningContexts = VixenSystem.Contexts.Where(x => x.IsRunning);
foreach (var runningContext in runningContexts)
{
runningContext.Pause();
}
_outputCount = VixenSystem.OutputControllers.GetAll().Sum(x => x.OutputCount);
VixenSystem.Elements.ClearStates();
//Special context to pre cache commands. We don't need all the other fancy executor or timing as we will advance it ourselves
PreCachingSequenceContext context = VixenSystem.Contexts.GetCacheCompileContext();
context.Sequence = Sequence;
TimingSource.Start();
context.Start();
while (TimingSource.Position <= Sequence.Length && IsRunning)
{
List <CommandOutput> commands = _UpdateState(TimingSource.Position);
Cache.OutputStateListAggregator.AddCommands(commands);
//Advance the timing
TimingSource.Increment();
}
TimingSource.Stop();
context.Stop();
foreach (var runningContext in runningContexts)
{
runningContext.Resume();
}
VixenSystem.Contexts.ReleaseContext(_context);
//restart the devices
VixenSystem.OutputDeviceManagement.ResumeAll();
IsRunning = false;
//Cache is now ready to use or save.
//cache.Save();
// To load the cache use the following
//ISequenceCache cache2 = SequenceService.Instance.LoadCache(cache.SequenceFilePath);
}
/// <summary>
/// Gets the command outputs for the current interval and then increments the timing source.
/// </summary>
/// <returns>Command outputs or null if there are no more intervals.</returns>
public void NextInterval()
{
//Advance the timing
TimingSource.Increment();
UpdateState();
}