From 606c197d188248d3af2b230cabcede0fbaab7745 Mon Sep 17 00:00:00 2001
From: Vrabbers <25323861+Vrabbers@users.noreply.github.com>
Date: Mon, 16 Feb 2026 01:13:17 -0300
Subject: [PATCH 1/2] Cache SKTypeface to avoid UI slowdown on linux with
 memory view open

---
 .../Controls/HexEditor.HexViewDrawOperation.cs | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs b/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs
index 36bc179f9..06887e537 100644
--- a/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs
+++ b/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs
@@ -14,6 +14,18 @@ namespace Mesen.Debugger.Controls
 {
 	public partial class HexEditor
 	{
+	    private static (string Name, SKTypeface Typeface)? s_typefaceCache = null;
+
+		private static SKTypeface GetTypeface(string fontFamily)
+		{
+		    if (s_typefaceCache == null || s_typefaceCache.Value.Name != fontFamily) {
+				s_typefaceCache?.Typeface.Dispose();
+				s_typefaceCache = (fontFamily, SKTypeface.FromFamilyName(fontFamily));
+			}
+
+			return s_typefaceCache.Value.Typeface;
+		}
+
 		class HexViewDrawOperation : ICustomDrawOperation
 		{
 			private HexEditor _he;
@@ -125,7 +137,7 @@ private void DrawHexView(SKCanvas canvas, Color color)
 				SKPaint paint = new SKPaint();
 				paint.Color = new SKColor(ColorHelper.GetColor(color).ToUInt32());
 
-				SKTypeface typeface = SKTypeface.FromFamilyName(_fontFamily);
+				SKTypeface typeface = GetTypeface(_fontFamily);
 				SKFont font = new SKFont(typeface, _fontSize);
 				SetFontProperties(font);
 
@@ -232,7 +244,7 @@ private void DrawStringView(SKCanvas canvas, Color color)
 				SKPaint paint = new SKPaint();
 				paint.Color = new SKColor(ColorHelper.GetColor(color).ToUInt32());
 
-				SKTypeface typeface = SKTypeface.FromFamilyName(_fontFamily);
+				SKTypeface typeface = GetTypeface(_fontFamily);
 				SKFont monoFont = new SKFont(typeface, _fontSize);
 				SetFontProperties(monoFont);
 
@@ -473,7 +485,7 @@ public void Render(ImmediateDrawingContext context)
 					SKPaint paint = new SKPaint();
 					paint.Color = new SKColor(ColorHelper.GetColor(_headerForeground).ToUInt32());
 
-					SKTypeface typeface = SKTypeface.FromFamilyName(_fontFamily);
+					SKTypeface typeface = GetTypeface(_fontFamily);
 					SKFont font = new SKFont(typeface, _fontSize);
 					font.Edging = _skiaEdging;
 					font.Subpixel = _skiaSubpixelSmoothing;

From fa858faee74217e0dd130d6e1345780d1b7fd1f3 Mon Sep 17 00:00:00 2001
From: Vrabbers <25323861+Vrabbers@users.noreply.github.com>
Date: Mon, 16 Feb 2026 01:19:53 -0300
Subject: [PATCH 2/2] Fix formatting

---
 .../Controls/HexEditor.HexViewDrawOperation.cs       | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs b/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs
index 06887e537..f0e19f0bd 100644
--- a/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs
+++ b/UI/Debugger/Controls/HexEditor.HexViewDrawOperation.cs
@@ -14,11 +14,11 @@ namespace Mesen.Debugger.Controls
 {
 	public partial class HexEditor
 	{
-	    private static (string Name, SKTypeface Typeface)? s_typefaceCache = null;
+		private static (string Name, SKTypeface Typeface)? s_typefaceCache = null;
 
-		private static SKTypeface GetTypeface(string fontFamily)
+		private static SKTypeface GetCachedTypeface(string fontFamily)
 		{
-		    if (s_typefaceCache == null || s_typefaceCache.Value.Name != fontFamily) {
+			if(s_typefaceCache == null || s_typefaceCache.Value.Name != fontFamily) {
 				s_typefaceCache?.Typeface.Dispose();
 				s_typefaceCache = (fontFamily, SKTypeface.FromFamilyName(fontFamily));
 			}
@@ -137,7 +137,7 @@ private void DrawHexView(SKCanvas canvas, Color color)
 				SKPaint paint = new SKPaint();
 				paint.Color = new SKColor(ColorHelper.GetColor(color).ToUInt32());
 
-				SKTypeface typeface = GetTypeface(_fontFamily);
+				SKTypeface typeface = GetCachedTypeface(_fontFamily);
 				SKFont font = new SKFont(typeface, _fontSize);
 				SetFontProperties(font);
 
@@ -244,7 +244,7 @@ private void DrawStringView(SKCanvas canvas, Color color)
 				SKPaint paint = new SKPaint();
 				paint.Color = new SKColor(ColorHelper.GetColor(color).ToUInt32());
 
-				SKTypeface typeface = GetTypeface(_fontFamily);
+				SKTypeface typeface = GetCachedTypeface(_fontFamily);
 				SKFont monoFont = new SKFont(typeface, _fontSize);
 				SetFontProperties(monoFont);
 
@@ -485,7 +485,7 @@ public void Render(ImmediateDrawingContext context)
 					SKPaint paint = new SKPaint();
 					paint.Color = new SKColor(ColorHelper.GetColor(_headerForeground).ToUInt32());
 
-					SKTypeface typeface = GetTypeface(_fontFamily);
+					SKTypeface typeface = GetCachedTypeface(_fontFamily);
 					SKFont font = new SKFont(typeface, _fontSize);
 					font.Edging = _skiaEdging;
 					font.Subpixel = _skiaSubpixelSmoothing;