Added SkipLocalsInitAttribute to Sample-Methods

RGB.NET.Core/Devices/AbstractRGBDevice.cs

@@ -7,6 +7,7 @@ using System.Buffers;
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
+using System.Runtime.CompilerServices;
 
 namespace RGB.NET.Core;
 
@@ -120,6 +121,7 @@ public abstract class AbstractRGBDevice<TDeviceInfo> : Placeable, IRGBDevice<TDe
     /// </remarks>
     /// <param name="leds">The enumerable of leds to convert.</param>
     /// <returns>The enumerable of custom data and color tuples for the specified leds.</returns>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     protected (object key, Color color) GetUpdateData(Led led)
     {
         Color color = led.Color;

RGB.NET.Core/Groups/AbstractLedGroup.cs

@@ -1,4 +1,5 @@
-using System.Collections;
+using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 
@@ -61,5 +62,14 @@ public abstract class AbstractLedGroup : AbstractDecoratable<ILedGroupDecorator>
     /// <inheritdoc />
     public IEnumerator<Led> GetEnumerator() => GetLeds().GetEnumerator();
 
+    /// <inheritdoc />
+    IDisposable? ILedGroup.ToListUnsafe(out IList<Led> leds) => ToListUnsafe(out leds);
+
+    protected virtual IDisposable? ToListUnsafe(out IList<Led> leds)
+    {
+        leds = ToList();
+        return null;
+    }
+
     #endregion
 }

RGB.NET.Core/Groups/ILedGroup.cs

@@ -1,6 +1,7 @@
 // ReSharper disable UnusedMemberInSuper.Global
 // ReSharper disable UnusedMember.Global
 
+using System;
 using System.Collections.Generic;
 
 namespace RGB.NET.Core;
@@ -45,4 +46,6 @@ public interface ILedGroup : IDecoratable<ILedGroupDecorator>, IEnumerable<Led>
     /// </summary>
     /// <returns>A list containing all <see cref="Led"/> in this group.</returns>
     IList<Led> ToList();
+
+    internal IDisposable? ToListUnsafe(out IList<Led> leds);
 }

RGB.NET.Core/Groups/ListLedGroup.cs

@@ -1,7 +1,9 @@
 // ReSharper disable MemberCanBePrivate.Global
 // ReSharper disable UnusedMember.Global
 
+using System;
 using System.Collections.Generic;
+using System.Threading;
 
 namespace RGB.NET.Core;
 
@@ -13,6 +15,8 @@ public class ListLedGroup : AbstractLedGroup
 {
     #region Properties & Fields
 
+    private readonly ActionDisposable _unlockDisposable;
+
     /// <summary>
     /// Gets the list containing the <see cref="Led"/> of this <see cref="ListLedGroup"/>.
     /// </summary>
@@ -29,7 +33,9 @@ public class ListLedGroup : AbstractLedGroup
     /// <param name="surface">Specifies the surface to attach this group to or <c>null</c> if the group should not be attached on creation.</param>
     public ListLedGroup(RGBSurface? surface)
         : base(surface)
-    { }
+    {
+        _unlockDisposable = new ActionDisposable(Unlock);
+    }
 
     /// <inheritdoc />
     /// <summary>
@@ -40,6 +46,8 @@ public class ListLedGroup : AbstractLedGroup
     public ListLedGroup(RGBSurface? surface, IEnumerable<Led> leds)
         : base(surface)
     {
+        _unlockDisposable = new ActionDisposable(Unlock);
+
         AddLeds(leds);
     }
 
@@ -52,6 +60,8 @@ public class ListLedGroup : AbstractLedGroup
     public ListLedGroup(RGBSurface? surface, params Led[] leds)
         : base(surface)
     {
+        _unlockDisposable = new ActionDisposable(Unlock);
+
         AddLeds(leds);
     }
 
@@ -135,5 +145,14 @@ public class ListLedGroup : AbstractLedGroup
             return new List<Led>(GroupLeds);
     }
 
+    protected override IDisposable ToListUnsafe(out IList<Led> leds)
+    {
+        Monitor.Enter(GroupLeds);
+        leds = GroupLeds;
+        return _unlockDisposable;
+    }
+
+    private void Unlock() => Monitor.Exit(GroupLeds);
+
     #endregion
 }

RGB.NET.Core/Misc/ActionDisposable.cs

@@ -0,0 +1,27 @@
+using System;
+
+namespace RGB.NET.Core;
+
+public sealed class ActionDisposable : IDisposable
+{
+    #region Properties & Fields
+
+    private readonly Action _onDispose;
+
+    #endregion
+
+    #region Constructors
+
+    public ActionDisposable(Action onDispose)
+    {
+        this._onDispose = onDispose;
+    }
+
+    #endregion
+
+    #region Methods
+
+    public void Dispose() => _onDispose();
+
+    #endregion
+}

RGB.NET.Core/RGBSurface.cs

@@ -208,26 +208,27 @@ public sealed class RGBSurface : AbstractBindable, IDisposable
 
         if ((brush == null) || !brush.IsEnabled) return;
 
-        IList<Led> leds = ledGroup.ToList();
-
-        IEnumerable<(RenderTarget renderTarget, Color color)> render;
-        switch (brush.CalculationMode)
+        using (ledGroup.ToListUnsafe(out IList<Led> leds))
         {
-            case RenderMode.Relative:
-                Rectangle brushRectangle = new(leds);
-                Point offset = new(-brushRectangle.Location.X, -brushRectangle.Location.Y);
-                brushRectangle = brushRectangle.SetLocation(new Point(0, 0));
-                render = brush.Render(brushRectangle, leds.Select(led => new RenderTarget(led, led.AbsoluteBoundary.Translate(offset))));
-                break;
-            case RenderMode.Absolute:
-                render = brush.Render(Boundary, leds.Select(led => new RenderTarget(led, led.AbsoluteBoundary)));
-                break;
-            default:
-                throw new ArgumentException($"The CalculationMode '{brush.CalculationMode}' is not valid.");
-        }
+            IEnumerable<(RenderTarget renderTarget, Color color)> render;
+            switch (brush.CalculationMode)
+            {
+                case RenderMode.Relative:
+                    Rectangle brushRectangle = new(leds);
+                    Point offset = new(-brushRectangle.Location.X, -brushRectangle.Location.Y);
+                    brushRectangle = brushRectangle.SetLocation(new Point(0, 0));
+                    render = brush.Render(brushRectangle, leds.Select(led => new RenderTarget(led, led.AbsoluteBoundary.Translate(offset))));
+                    break;
+                case RenderMode.Absolute:
+                    render = brush.Render(Boundary, leds.Select(led => new RenderTarget(led, led.AbsoluteBoundary)));
+                    break;
+                default:
+                    throw new ArgumentException($"The CalculationMode '{brush.CalculationMode}' is not valid.");
+            }
 
-        foreach ((RenderTarget renderTarget, Color c) in render)
-            renderTarget.Led.Color = c;
+            foreach ((RenderTarget renderTarget, Color c) in render)
+                renderTarget.Led.Color = c;
+        }
     }
 
     /// <summary>

RGB.NET.Core/Rendering/Textures/PixelTexture.cs

@@ -76,6 +76,7 @@ public abstract class PixelTexture<T> : ITexture
     /// <param name="width">The with of the region.</param>
     /// <param name="height">The height of the region.</param>
     /// <returns>The sampled color.</returns>
+    [SkipLocalsInit]
     public virtual Color this[int x, int y, int width, int height]
     {
         get

RGB.NET.Core/Update/Devices/DeviceUpdateTrigger.cs

@@ -157,11 +157,13 @@ public class DeviceUpdateTrigger : AbstractUpdateTrigger, IDeviceUpdateTrigger
         using (TimerHelper.RequestHighResolutionTimer())
             while (!UpdateToken.IsCancellationRequested)
                 if (HasDataEvent.WaitOne(Timeout))
-                    LastUpdateTime = TimerHelper.Execute(() => OnUpdate(), UpdateFrequency * 1000);
+                    LastUpdateTime = TimerHelper.Execute(TimerExecute, UpdateFrequency * 1000);
                 else if ((HeartbeatTimer > 0) && (LastUpdateTimestamp > 0) && (TimerHelper.GetElapsedTime(LastUpdateTimestamp) > HeartbeatTimer))
                     OnUpdate(new CustomUpdateData().Heartbeat());
     }
 
+    private void TimerExecute() => OnUpdate();
+
     protected override void OnUpdate(CustomUpdateData? updateData = null)
     {
         base.OnUpdate(updateData);

RGB.NET.Core/Update/ManualUpdateTrigger.cs

@@ -83,12 +83,12 @@ public sealed class ManualUpdateTrigger : AbstractUpdateTrigger
         OnStartup();
 
         while (!UpdateToken.IsCancellationRequested)
-        {
             if (_mutex.WaitOne(100))
-                LastUpdateTime = TimerHelper.Execute(() => OnUpdate(_customUpdateData));
-        }
+                LastUpdateTime = TimerHelper.Execute(TimerExecute);
     }
 
+    private void TimerExecute() => OnUpdate(_customUpdateData);
+
     /// <inheritdoc />
     public override void Dispose() => Stop();
 

RGB.NET.Core/Update/TimerUpdateTrigger.cs

@@ -131,10 +131,11 @@ public class TimerUpdateTrigger : AbstractUpdateTrigger
 
         using (TimerHelper.RequestHighResolutionTimer())
             while (!UpdateToken.IsCancellationRequested)
-                LastUpdateTime = TimerHelper.Execute(() => OnUpdate(_customUpdateData), UpdateFrequency * 1000);
-
+                LastUpdateTime = TimerHelper.Execute(TimerExecute, UpdateFrequency * 1000);
     }
 
+    private void TimerExecute() => OnUpdate(_customUpdateData);
+
     /// <inheritdoc />
     public override void Dispose()
     {

RGB.NET.Presets/Groups/RectangleLedGroup.cs

@@ -2,6 +2,7 @@
 // ReSharper disable AutoPropertyCanBeMadeGetOnly.Global
 // ReSharper disable UnusedMember.Global
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using RGB.NET.Core;
@@ -121,7 +122,7 @@ public class RectangleLedGroup : AbstractLedGroup
     /// Gets a list containing all <see cref="T:RGB.NET.Core.Led" /> of this <see cref="T:RGB.NET.Presets.Groups.RectangleLedGroup" />.
     /// </summary>
     /// <returns>The list containing all <see cref="T:RGB.NET.Core.Led" /> of this <see cref="T:RGB.NET.Presets.Groups.RectangleLedGroup" />.</returns>
-    public override IList<Led> ToList() => _ledCache ??= (Surface?.Leds.Where(led => led.AbsoluteBoundary.CalculateIntersectPercentage(Rectangle) >= MinOverlayPercentage).ToList() ?? new List<Led>());
+    public override IList<Led> ToList() => _ledCache ??= ((IList<Led>?)Surface?.Leds.Where(led => led.AbsoluteBoundary.CalculateIntersectPercentage(Rectangle) >= MinOverlayPercentage).ToList() ?? Array.Empty<Led>());
 
     private void InvalidateCache() => _ledCache = null;
 

RGB.NET.Presets/Textures/Sampler/AverageByteSampler.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Numerics;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using RGB.NET.Core;
 
@@ -19,6 +20,7 @@ public class AverageByteSampler : ISampler<byte>
     #region Methods
 
     /// <inheritdoc />
+    [SkipLocalsInit]
     public unsafe void Sample(in SamplerInfo<byte> info, in Span<byte> pixelData)
     {
         int count = info.Width * info.Height;

RGB.NET.Presets/Textures/Sampler/AverageFloatSampler.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Numerics;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using RGB.NET.Core;
 
@@ -13,6 +14,7 @@ public class AverageFloatSampler : ISampler<float>
     #region Methods
 
     /// <inheritdoc />
+    [SkipLocalsInit]
     public unsafe void Sample(in SamplerInfo<float> info, in Span<float> pixelData)
     {
         int count = info.Width * info.Height;