From 6592a18cd7601bf89f947b5c096ecc74905a5606 Mon Sep 17 00:00:00 2001
From: Timothy Arceri <tarceri@itsqueeze.com>
Date: Wed, 26 Nov 2025 11:46:31 +1100
Subject: [PATCH] util/driconf: add workaround for Interstellar Rift
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This game sets the reset isolation bit which causes the GL context
creation to fail as Mesa doesn't support the
GLX_ARB_robustness_application_isolation extension. Here we override
and clear the bit.

According to the spec says:

    "The GLX_ARB_robustness_application_isolation and
    GLX_ARB_robustness_share_group_isolation extensions do not provide
    guarantees for graphics resets caused by applications which did
    not create their contexts with both the LOSE_CONTEXT_ON_RESET_ARB
    reset notification strategy and the
    GLX_CONTEXT_RESET_ISOLATION_BIT_ARB bit."

And the game doesn't set LOSE_CONTEXT_ON_RESET_ARB so technically
we could ignore the reset isolation bit even if Mesa did support
the extension.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13336

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38668>
---
 src/util/00-mesa-defaults.conf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/00-mesa-defaults.conf b/src/util/00-mesa-defaults.conf
index c7a257f9024..2513cddd76d 100644
--- a/src/util/00-mesa-defaults.conf
+++ b/src/util/00-mesa-defaults.conf
@@ -266,6 +266,7 @@ TODO: document the other workarounds.
 
         <application name="Interstellar Rift" executable="IR.exe">
             <option name="force_compat_shaders" value="true" />
+            <option name="glx_clear_context_reset_isolation_bit" value="true" />
         </application>
 
         <application name="Jamestown+" executable="JamestownPlus.exe">