feat(composition): Implement GammaTransferEffect + Sample

jeromelaban · Mar 2, 2024 · 57bcce9 · 57bcce9
1 parent 3f976ba
commit 57bcce9
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Showing 3 changed files with 442 additions and 3 deletions.
diff --git a/src/SamplesApp/UITests.Shared/Windows_UI_Composition/EffectBrushTests.xaml b/src/SamplesApp/UITests.Shared/Windows_UI_Composition/EffectBrushTests.xaml
@@ -25,5 +25,6 @@
 		<Grid x:Name="crossfadeGrid" Width="200" Height="200" VerticalAlignment="Top" HorizontalAlignment="Left" ToolTipService.ToolTip="CrossFadeEffect"/>
 		<Grid x:Name="lumaGrid" Width="200" Height="200" VerticalAlignment="Top" HorizontalAlignment="Left" ToolTipService.ToolTip="LuminanceToAlphaEffect"/>
 		<Grid x:Name="linearXferGrid" Width="200" Height="200" VerticalAlignment="Top" HorizontalAlignment="Left" ToolTipService.ToolTip="LinearTransferEffect"/>
+		<Grid x:Name="gammaXferGrid" Width="200" Height="200" VerticalAlignment="Top" HorizontalAlignment="Left" ToolTipService.ToolTip="GammaTransferEffect"/>
 	</GridView>
 </UserControl>
diff --git a/src/SamplesApp/UITests.Shared/Windows_UI_Composition/EffectBrushTests.xaml.cs b/src/SamplesApp/UITests.Shared/Windows_UI_Composition/EffectBrushTests.xaml.cs
@@ -153,6 +153,12 @@ private void EffectBrushTests_Loaded(object sender, RoutedEventArgs e)
 			var effectBrush15 = factory15.CreateBrush();
 
 			linearXferGrid.Background = new EffectTesterBrush(effectBrush15);
+
+			var effect16 = new SimpleGammaTransferEffect() { Source = new CompositionEffectSourceParameter("sourceBrush"), RedExponent = 0.25f, GreenExponent = 0.25f, BlueExponent = 0.25f };
+			var factory16 = compositor.CreateEffectFactory(effect16);
+			var effectBrush16 = factory16.CreateBrush();
+
+			gammaXferGrid.Background = new EffectTesterBrush(effectBrush16);
 #endif
 		}
 
@@ -1020,6 +1026,224 @@ public object GetProperty(uint index)
 			public IGraphicsEffectSource GetSource(uint index) => Source;
 			public uint GetSourceCount() => 1;
 		}
+
+		[Guid("409444C4-C419-41A0-B0C1-8CD0C0A18E42")]
+		private class SimpleGammaTransferEffect : IGraphicsEffect, IGraphicsEffectSource, IGraphicsEffectD2D1Interop
+		{
+			private string _name = "SimpleGammaTransferEffect";
+			private Guid _id = new Guid("409444C4-C419-41A0-B0C1-8CD0C0A18E42");
+
+			public string Name
+			{
+				get => _name;
+				set => _name = value;
+			}
+
+			public float RedAmplitude { get; set; } = 1.0f;
+
+			public float RedExponent { get; set; } = 1.0f;
+
+			public float RedOffset { get; set; } = 0.0f;
+
+			public bool RedDisable { get; set; } = false;
+
+
+			public float GreenAmplitude { get; set; } = 1.0f;
+
+			public float GreenExponent { get; set; } = 1.0f;
+
+			public float GreenOffset { get; set; } = 0.0f;
+
+			public bool GreenDisable { get; set; } = false;
+
+
+			public float BlueAmplitude { get; set; } = 1.0f;
+
+			public float BlueExponent { get; set; } = 1.0f;
+
+			public float BlueOffset { get; set; } = 0.0f;
+
+			public bool BlueDisable { get; set; } = false;
+
+
+			public float AlphaAmplitude { get; set; } = 1.0f;
+
+			public float AlphaExponent { get; set; } = 1.0f;
+
+			public float AlphaOffset { get; set; } = 0.0f;
+
+			public bool AlphaDisable { get; set; } = false;
+
+
+			public bool ClampOutput { get; set; } = false;
+
+
+			public IGraphicsEffectSource Source { get; set; }
+
+			public Guid GetEffectId() => _id;
+
+			public void GetNamedPropertyMapping(string name, out uint index, out GraphicsEffectPropertyMapping mapping)
+			{
+				switch (name)
+				{
+					case "RedAmplitude":
+						{
+							index = 0;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "RedExponent":
+						{
+							index = 1;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "RedOffset":
+						{
+							index = 2;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "RedDisable":
+						{
+							index = 3;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "GreenAmplitude":
+						{
+							index = 4;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "GreenExponent":
+						{
+							index = 5;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "GreenOffset":
+						{
+							index = 6;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "GreenDisable":
+						{
+							index = 7;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "BlueAmplitude":
+						{
+							index = 8;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "BlueExponent":
+						{
+							index = 9;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "BlueOffset":
+						{
+							index = 10;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "BlueDisable":
+						{
+							index = 11;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "AlphaAmplitude":
+						{
+							index = 12;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "AlphaExponent":
+						{
+							index = 13;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "AlphaOffset":
+						{
+							index = 14;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "AlphaDisable":
+						{
+							index = 15;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					case "ClampOutput":
+						{
+							index = 16;
+							mapping = GraphicsEffectPropertyMapping.Direct;
+							break;
+						}
+					default:
+						{
+							index = 0xFF;
+							mapping = (GraphicsEffectPropertyMapping)0xFF;
+							break;
+						}
+				}
+			}
+
+			public object GetProperty(uint index)
+			{
+				switch (index)
+				{
+					case 0:
+						return RedAmplitude;
+					case 1:
+						return RedExponent;
+					case 2:
+						return RedOffset;
+					case 3:
+						return RedDisable;
+					case 4:
+						return GreenAmplitude;
+					case 5:
+						return GreenExponent;
+					case 6:
+						return GreenOffset;
+					case 7:
+						return GreenDisable;
+					case 8:
+						return BlueAmplitude;
+					case 9:
+						return BlueExponent;
+					case 10:
+						return BlueOffset;
+					case 11:
+						return BlueDisable;
+					case 12:
+						return AlphaAmplitude;
+					case 13:
+						return AlphaExponent;
+					case 14:
+						return AlphaOffset;
+					case 15:
+						return AlphaDisable;
+					case 16:
+						return ClampOutput;
+					default:
+						return null;
+				}
+			}
+
+			public uint GetPropertyCount() => 17;
+			public IGraphicsEffectSource GetSource(uint index) => Source;
+			public uint GetSourceCount() => 1;
+		}
 #endif
 	}
 }