Switch hello world WinRT shader to primary constructor

samples/ComputeSharp.NativeLibrary.WinRT/HelloWorldEffect.cs

@@ -14,10 +14,10 @@ public sealed partial class HelloWorldEffect : CanvasEffect
  /// </summary>
  private static readonly EffectNode<PixelShaderEffect<Shader>> EffectNode = new();
 
- /// <inheritdoc cref="Shader.time"/>
+ /// <summary><inheritdoc cref="Shader(float, Int2)" path="/param[@name='time']/node()"/></summary>
  private float time;
 
- /// <inheritdoc cref="Shader.dispatchSize"/>
+ /// <summary><inheritdoc cref="Shader(float, Int2)" path="/param[@name='dispatchSize']/node()"/></summary>
  private Rect dispatchArea;
 
  /// <summary>
@@ -55,8 +55,10 @@ protected override void ConfigureEffectGraph(EffectGraph effectGraph)
  }
 
  /// <summary>
- /// The D2D1 shader for <see cref="HelloWorldEffect"/>.
+ /// A hello world effect that displays a color gradient.
  /// </summary>
+ /// <param name="time">The current time since the start of the application.</param>
+ /// <param name="dispatchSize">The dispatch size for the current output.</param>
  [D2DEffectDisplayName(nameof(HelloWorldEffect))]
  [D2DEffectDescription("A hello world effect that displays a color gradient.")]
  [D2DEffectCategory("Render")]
@@ -65,25 +67,14 @@ protected override void ConfigureEffectGraph(EffectGraph effectGraph)
  [D2DRequiresScenePosition]
  [D2DShaderProfile(D2D1ShaderProfile.PixelShader50)]
  [D2DGeneratedPixelShaderDescriptor]
- [AutoConstructor]
- internal readonly partial struct Shader : ID2D1PixelShader
+ internal readonly partial struct Shader(float time, int2 dispatchSize) : ID2D1PixelShader
  {
- /// <summary>
- /// The current time since the start of the application.
- /// </summary>
- private readonly float time;
-
- /// <summary>
- /// The dispatch size for the current output.
- /// </summary>
- private readonly int2 dispatchSize;
-
  /// <inheritdoc/>
  public float4 Execute()
  {
  int2 xy = (int2)D2D.GetScenePosition().XY;
- float2 uv = xy / (float2)this.dispatchSize;
- float3 color = 0.5f + (0.5f * Hlsl.Cos(this.time + new float3(uv, uv.X) + new float3(0, 2, 4)));
+ float2 uv = xy / (float2)dispatchSize;
+ float3 color = 0.5f + (0.5f * Hlsl.Cos(time + new float3(uv, uv.X) + new float3(0, 2, 4)));
 
  return new(color, 1f);
  }