From 770e2f207c8fd3448da0878308d48c98dbb32c34 Mon Sep 17 00:00:00 2001
From: jpirnay <jens@pirnay.com>
Date: Mon, 30 Mar 2026 18:32:00 +0200
Subject: [PATCH] Fix 1 pixel regression

---
 lib/GfxRenderer/GfxRenderer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/GfxRenderer/GfxRenderer.cpp b/lib/GfxRenderer/GfxRenderer.cpp
index 9f5e7b15..fae2ba11 100644
--- a/lib/GfxRenderer/GfxRenderer.cpp
+++ b/lib/GfxRenderer/GfxRenderer.cpp
@@ -354,7 +354,9 @@ void GfxRenderer::drawArc(const int maxRadius, const int cx, const int cy, const
     while (xOuter > 0 && (xOuter * xOuter + dy * dy) > outerRadiusSq) {
       --xOuter;
     }
-    while (xInner > 0 && (xInner * xInner + dy * dy) > innerRadiusSq) {
+    // Keep the smallest x that still lies outside/at the inner radius,
+    // i.e. (x^2 + y^2) >= innerRadiusSq.
+    while (xInner > 0 && ((xInner - 1) * (xInner - 1) + dy * dy) >= innerRadiusSq) {
       --xInner;
     }