From 37aca44e45923511500ee1e6a8f39a30810b7f63 Mon Sep 17 00:00:00 2001
From: Syntriax <syntriax@gmail.com>
Date: Sat, 26 Jul 2025 12:03:28 +0300
Subject: [PATCH] feat: monogame premultiplied color extension method added

---
 .../Engine.Integration.MonoGame/EngineConverter.cs          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Engine.Integration/Engine.Integration.MonoGame/EngineConverter.cs b/Engine.Integration/Engine.Integration.MonoGame/EngineConverter.cs
index 4a10da4..cea1b55 100644
--- a/Engine.Integration/Engine.Integration.MonoGame/EngineConverter.cs
+++ b/Engine.Integration/Engine.Integration.MonoGame/EngineConverter.cs
@@ -19,6 +19,12 @@ public static class EngineConverterExtensions
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Color ToColor(this ColorRGBA color) => new(color.R, color.G, color.B, color.A);
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static Color ToPreMultipliedColor(this ColorRGBA color)
+    {
+        float alphaMultiplier = color.A / 255f;
+        return new((byte)(color.R * alphaMultiplier), (byte)(color.G * alphaMultiplier), (byte)(color.B * alphaMultiplier), color.A);
+    }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ColorRGBA ToColorRGBA(this Color color) => new(color.R, color.G, color.B, color.A);