public void CopyTo(LightData destination)
{
destination.Time = Time;
if (ColourData != null)
{
byte[] colourData = new byte[ColourData.Length];
Buffer.BlockCopy(ColourData, 0, colourData, 0, ColourData.Length);
destination.ColourData = colourData;
}
}
/// <summary>
/// Thread safe retrieval of the previous frame's final adjusted light data
/// </summary>
/// <returns>A copy of the current light data (can be null if no light data)</returns>
/// <remarks>Frequent calling of this method may have a performance impact due to thread synchronisation.</remarks>
public LightData GetPreviousLightData()
{
lock (previousSync)
{
if (_prevLightData == null)
{
return(null);
}
LightData data = new LightData(_prevLightData);
return(data);
}
}
private void OutputLoop()
{
try
{
//Get Light Setup Plugin
ILightSetupPlugin lightSetupPlugin = CurrentProfile.LightSetupPlugin;
Stopwatch timer = new Stopwatch();
double waitTicks = 1.0 / CurrentProfile.OutputFrequency;
double freq = 1.0 / Stopwatch.Frequency;
long lastUpdate = 0;
// Initialise temporary lightData
LightData lightData = new LightData(lightSetupPlugin.Lights.Count);
while (Active)
{
timer.Restart();
// If available, replace _currentLightData with _nextLightData
lock (sync)
{
if (lastUpdate < _nextLightData.Time)
{
var t = lightData;
lightData = _nextLightData;
_nextLightData = t;
lastUpdate = lightData.Time;
}
}
if (lightData != null)
{
// Run pre-output plugins
CurrentProfile.PreOutputPlugins.ToList().ForEach(po => po.PreOutput(lightSetupPlugin.Lights, lightData));
//Run Output Plugin(s)
CurrentProfile.OutputPlugins.ToList().ForEach(o => o.Output(lightSetupPlugin.Lights, lightData));
}
// Copy the last frame to _prevLightData
lock (previousSync)
{
Buffer.BlockCopy(lightData.ColourData, 0, _prevLightData.ColourData, 0, lightData.ColourData.Length);
}
// Throttle Output Frequency
while (timer.ElapsedTicks * freq < waitTicks)
{
Task.Delay(5);
}
_outputLoopFPS.Tick();
}
}
catch (Exception e)
{
lock (sync)
{
Active = false;
AfterglowRuntime.Logger.Error(e, "Afterglow Runtime - Output Loop");
}
}
finally
{
// Allow plugins to clean up
CurrentProfile.PreOutputPlugins.ForEach(po => po.Stop());
CurrentProfile.OutputPlugins.ForEach(o => o.Stop());
}
}
private void CaptureLoop()
{
try
{
//Get Light Setup Plugin
ILightSetupPlugin lightSetupPlugin = CurrentProfile.LightSetupPlugin;
Stopwatch timer = Stopwatch.StartNew();
long lastTicks = 0;
double waitTicks = 1.0 / CurrentProfile.CaptureFrequency;
double freq = 1.0 / Stopwatch.Frequency;
LightData newLightData = new LightData(_nextLightData);
while (Active)
{
lastTicks = timer.ElapsedTicks;
//Get screen segments
IDictionary <Light, PixelReader> ledSources = CurrentProfile.CapturePlugin.Capture(lightSetupPlugin);
newLightData.Time = timer.ElapsedTicks;
try
{
//Extract Colours from segments
int i = 0;
foreach (var keyValue in ledSources)
{
newLightData[i] = CurrentProfile.ColourExtractionPlugin.Extract(keyValue.Key, keyValue.Value);
i++;
}
}
finally
{
//Dispose of screen segments
foreach (var keyValue in ledSources)
{
keyValue.Value.Dispose();
}
//Dispose of whole screen
CurrentProfile.CapturePlugin.ReleaseCapture();
}
//Run any Post Process Plugins
foreach (var postProcessPlugin in CurrentProfile.PostProcessPlugins)
{
(postProcessPlugin as IPostProcessPlugin).Process(lightSetupPlugin.Lights, newLightData);
}
// Thread safe swap of new light data into _nextLightData
lock (sync)
{
var t = _nextLightData;
_nextLightData = newLightData;
newLightData = t;
}
// Throttle Capture Frequency
while ((timer.ElapsedTicks - lastTicks) * freq < waitTicks)
{
Task.Delay(5);
}
// Update capture FPS counter
_captureLoopFPS.Tick();
}
}
catch (Exception e)
{
lock (sync)
{
Active = false;
AfterglowRuntime.Logger.Error(e, "Afterglow Runtime - Capture Loop");
}
}
finally
{
// Allow plugins to clean up
CurrentProfile.CapturePlugins.ForEach(cp => cp.Stop());
CurrentProfile.PostProcessPlugins.ForEach(pp => pp.Stop());
}
}
/// <summary>
/// Start running the current profile
/// </summary>
public void Start()
{
Stop();
Logger.Info("Starting...");
bool profileJustSet = false;
if (this.CurrentProfile == null)
{
this.CurrentProfile = (from p in this.Setup.Profiles
where p.Id == this.Setup.CurrentProfileId
select p).FirstOrDefault();
profileJustSet = true;
}
if (this.CurrentProfile == null)
{
CurrentProfile = this.Setup.Profiles.FirstOrDefault();
profileJustSet = true;
}
if (CurrentProfile == null)
{
Logger.Error("No profile has been selected");
return;
}
else
{
//Reset current profile incase there has been any setting changes
if (!profileJustSet)
{
this.CurrentProfile = (from p in this.Setup.Profiles
where p.Id == this.CurrentProfile.Id
select p).First();
}
CurrentProfile.Validate();
if (!Active)
{
Active = true;
// Prepare light data buffer
_nextLightData = new LightData(CurrentProfile.LightSetupPlugin.Lights.Count);
_prevLightData = new LightData(CurrentProfile.LightSetupPlugin.Lights.Count);;
// Start all plugins
CurrentProfile.CapturePlugin.Start();
CurrentProfile.ColourExtractionPlugin.Start();
CurrentProfile.PostProcessPlugins.ToList().ForEach(p => p.Start());
CurrentProfile.PreOutputPlugins.ToList().ForEach(p => p.Start());
string errorMessage = String.Empty;
int outputFailures = 0;
List <IOutputPlugin> outputPluginsInError = new List <IOutputPlugin>();
foreach (IOutputPlugin outputPlugin in CurrentProfile.OutputPlugins)
{
if (!outputPlugin.TryStart())
{
outputFailures++;
outputPluginsInError.Add(outputPlugin);
}
}
//If all output plugins are in error then stop
if (outputFailures == CurrentProfile.OutputPlugins.Count())
{
Stop();
}
else
{
//Remove plugins in error and allow other plugins to continue to run
outputPluginsInError.ForEach(o => this.CurrentProfile.OutputPlugins.Remove(o));
// Commence capture and output threads
_captureLoopTask = Task.Factory.StartNew(CaptureLoop);
_outputLoopTask = Task.Factory.StartNew(OutputLoop);
}
}
}
}
public LightData(LightData copyFrom)
{
copyFrom.CopyTo(this);
}