From e459c8bf543176f4a99ab748d7dfb7e8ba59afa7 Mon Sep 17 00:00:00 2001
From: Aleix Pol <aleixpol@kde.org>
Date: Tue, 23 Jun 2020 14:58:48 +0200
Subject: [PATCH] No need to recalculate the matrix if yInverted doesn't change

---
 libkwineffects/kwingltexture.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libkwineffects/kwingltexture.cpp b/libkwineffects/kwingltexture.cpp
index 398a1f2491..467fbbfb3d 100644
--- a/libkwineffects/kwingltexture.cpp
+++ b/libkwineffects/kwingltexture.cpp
@@ -628,6 +628,9 @@ bool GLTexture::isYInverted() const
 void GLTexture::setYInverted(bool inverted)
 {
     Q_D(GLTexture);
+    if (d->m_yInverted == inverted)
+        return;
+
     d->m_yInverted = inverted;
     d->updateMatrix();
 }