Color.GetChannelCount

Author: ds5678

AssetRipper.TextureDecoder.Tests/Formats/Generic/GenericColorTests.cs

@@ -8,8 +8,7 @@ internal partial class GenericColorTests<TColor, TChannel> where TColor : unmana
 	[Test]
 	public void CorrectSizeTest()
 	{
-		int numChannels = (TColor.HasRedChannel ? 1 : 0) + (TColor.HasGreenChannel ? 1 : 0) + (TColor.HasBlueChannel ? 1 : 0) + (TColor.HasAlphaChannel ? 1 : 0);
-		Assert.That(Unsafe.SizeOf<TColor>(), Is.EqualTo(numChannels * Unsafe.SizeOf<TChannel>()));
+		Assert.That(Unsafe.SizeOf<TColor>(), Is.EqualTo(Color.GetChannelCount<TColor>() * Unsafe.SizeOf<TChannel>()));
 	}
 
 	[Test]
@@ -144,4 +143,4 @@ public void MethodsAreSymmetric()
 	private static TChannel MakeRandomValue() => ColorRandom<TColor, TChannel>.MakeRandomValue();
 
 	private static TColor MakeRandomColor() => ColorRandom<TColor, TChannel>.MakeRandomColor();
-}
+}

AssetRipper.TextureDecoder/Rgb/Color.cs

@@ -28,6 +28,12 @@ internal static void SetConvertedChannels<TThis, TThisChannel, TSourceChannel>(t
 			NumericConversion.Convert<TSourceChannel, TThisChannel>(a));
 	}
 
+	[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
+	public static int GetChannelCount<T>() where T : IColorBase
+	{
+		return (T.HasRedChannel ? 1 : 0) + (T.HasGreenChannel ? 1 : 0) + (T.HasBlueChannel ? 1 : 0) + (T.HasAlphaChannel ? 1 : 0);
+	}
+
 	[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
 	public static TTarget Convert<TThis, TThisChannel, TTarget, TTargetChannel>(this TThis color)
 		where TThisChannel : unmanaged