ungoogled-chromium-archlinux/chromium-144-fix-hdr-issue.patch at master · ungoogled-software/ungoogled-chromium-archlinux · GitHub

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From db1dbe8528be4d01f5ac9da0a797a14f425647f9 Mon Sep 17 00:00:00 2001
From: Tom Anderson <thomasanderson@chromium.org>
Date: Thu, 08 Jan 2026 10:44:15 -0800
Subject: [PATCH] [Wayland] Remove sRGB hack for gamma 2.2

KWin has deprecated sRGB support, causing unusable colors with our
hack to force gamma 2.2 to sRGB. This change removes the hack.

R=fangzhoug

Bug: 449423580
Change-Id: I236634d6dd899ba3ed9272dd41be3199d0397a36
Fixed: 472094286
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7415366
Commit-Queue: Kramer Ge <fangzhoug@chromium.org>
Reviewed-by: Kramer Ge <fangzhoug@chromium.org>
Auto-Submit: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1566420}
---

diff --git a/ui/ozone/platform/wayland/host/wayland_wp_image_description.cc b/ui/ozone/platform/wayland/host/wayland_wp_image_description.cc
index bfca9fdc..f7c1672a 100644
--- a/ui/ozone/platform/wayland/host/wayland_wp_image_description.cc
+++ b/ui/ozone/platform/wayland/host/wayland_wp_image_description.cc
@@ -185,12 +185,6 @@
     return gfx::ColorSpace::CreateSRGB();
   }

-  if (!is_hdr && transfer == gfx::ColorSpace::TransferID::GAMMA22) {
-    // Pass through SRGB content to the compositor instead of re-encoding
-    // it as gamma 2.2 (https://crbug.com/449423580)
-    transfer = gfx::ColorSpace::TransferID::SRGB;
-  }
-
   gfx::ColorSpace color_space(
       *primaries, *transfer, gfx::ColorSpace::MatrixID::RGB,
       gfx::ColorSpace::RangeID::FULL, custom_primaries, custom_transfer_fn);