[PATCH] glx: do not pick sRGB config for 32-bit RGBA visual

[Tapani Pälli]

This fixes blending issues seen with kwin and gnome-shell when
32bit visual has sRGB capability set.

Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
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 73444152a..596d972e0 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;
-- 
2.14.3