[patch] Do-not-pick-sRGB-config-for-32-bit-RGBA-visual.patch

Do-not-pick-sRGB-config-for-32-bit-RGBA-visual.patch (text/plain), 1.51 KB, created by Nick Sarnie on 2018-04-24 03:09:21 UTC

From c2954b16c8730c7ed8441fd8dba25900f3aed265 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tapani=20P=C3=A4lli?= <[e-mail]>
Date: Tue, 28 Nov 2017 09:23:29 +0200
Subject: glx: do not pick sRGB config for 32-bit RGBA visual
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This fixes blending issues seen with kwin and gnome-shell when
32bit visual has sRGB capability set.

Reviewed-by: Adam Jackson <[e-mail]>
Signed-off-by: Tapani Pälli <[e-mail]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103699
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103646
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103655
---
 glx/glxscreens.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/glx/glxscreens.c b/glx/glxscreens.c
index 7344415..596d972 100644
--- a/glx/glxscreens.c
+++ b/glx/glxscreens.c
@@ -271,6 +271,11 @@ pickFBConfig(__GLXscreen * pGlxScreen, VisualPtr visual)
         /* If it's the 32-bit RGBA visual, demand a 32-bit fbconfig. */
         if (visual->nplanes == 32 && config->rgbBits != 32)
             continue;
+        /* If it's the 32-bit RGBA visual, do not pick sRGB capable config.
+         * This can cause issues with compositors that are not sRGB aware.
+         */
+        if (visual->nplanes == 32 && config->sRGBCapable == GL_TRUE)
+            continue;
         /* Can't use the same FBconfig for multiple X visuals.  I think. */
         if (config->visualID != 0)
             continue;
-- 
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