Add workaround for custom WinRT components with CsWinRT

See microsoft/CsWinRT#1319

src/ComputeSharp.D2D1.UI/PixelShaderEffect{T}.cs

@@ -1,3 +1,6 @@
+#if !WINDOWS_UWP
+using System.Diagnostics.CodeAnalysis;
+#endif
 using ABI.Microsoft.Graphics.Canvas;
 using ComputeSharp.D2D1.Interop;
 using ComputeSharp.Interop;
@@ -72,6 +75,16 @@ public sealed partial class PixelShaderEffect<T> : IReferenceTrackedObject, ICan
  /// <summary>
  /// Creates a new <see cref="PixelShaderEffect{T}"/> instance.
  /// </summary>
+#if !WINDOWS_UWP
+ // Workaround for trimming bug in custom COM/WinRT components with CsWinRT. Without manually preserving metadata for
+ // these types, using them will throw an InvalidCastException (see https://github.com/microsoft/CsWinRT/issues/1319).
+ [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(ICanvasImageInterop.Interface))]
+ [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(ICanvasImageInterop.Interface.Vftbl))]
+ [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(ICanvasFactoryNative.Interface))]
+ [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(ICanvasFactoryNative.Interface.Vftbl))]
+ [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(ICanvasEffectFactoryNative.Interface))]
+ [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(ICanvasEffectFactoryNative.Interface.Vftbl))]
+#endif
  public PixelShaderEffect()
  {
  using ReferenceTracker.Lease _0 = ReferenceTracker.Create(this, out this.referenceTracker);