From fcf1ae6cf6aa536d469138a10623fb43a6423e5d Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@qt.io>
Date: Tue, 6 Dec 2022 10:42:59 +0100
Subject: Fix wrong to linear conversion

Causing bad rendering of gamma corrected text on non-standard image
format paint devices.

Fixes: QTBUG-109169
Change-Id: I6d95e9a42b9ccac609071123dd4535d25e225a29
Reviewed-by: Fabian Vogt <fabian@ritter-vogt.de>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
(cherry picked from commit a09c33e1f7b5999a16bce9dd23ef8ca33d519210)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/gui/painting/qcolortrclut_p.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/gui/painting/qcolortrclut_p.h')

diff --git a/src/gui/painting/qcolortrclut_p.h b/src/gui/painting/qcolortrclut_p.h
index c9f2140ce1..4b1be0d366 100644
--- a/src/gui/painting/qcolortrclut_p.h
+++ b/src/gui/painting/qcolortrclut_p.h
@@ -118,6 +118,7 @@ public:
         return QRgba64::fromRgba64(r, g, b, qAlpha(rgb32) * 257);
 #endif
     }
+    QRgba64 toLinear64(QRgba64) const = delete;
 
     QRgb toLinear(QRgb rgb32) const
     {
-- 
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