From b82e49f64494f96121174fe5aace33a449b50f65 Mon Sep 17 00:00:00 2001
From: Rob Clark <rob.clark@oss.qualcomm.com>
Date: Sat, 2 Aug 2025 16:35:37 -0700
Subject: [PATCH] drirc: Work around ANGLE brokeness

ANGLE is completely broken on certain vendors, see
https://issues.angleproject.org/u/1/issues/431097618

Work around this by spoofing gl vendor.

Cc: mesa-stable
Signed-off-by: Rob Clark <rob.clark@oss.qualcomm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36540>
---
 src/util/00-mesa-defaults.conf | 39 ++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/src/util/00-mesa-defaults.conf b/src/util/00-mesa-defaults.conf
index 86f01376740..5e057d92eba 100644
--- a/src/util/00-mesa-defaults.conf
+++ b/src/util/00-mesa-defaults.conf
@@ -1260,6 +1260,45 @@ TODO: document the other workarounds.
         </application>
     </device>
 
+    <device driver="msm">
+        <!--
+            ANGLE is catastrophically broken, see:
+
+               https://issues.angleproject.org/u/1/issues/431097618
+
+            This broken codepath is exposed when skia detects vendor
+            freedreno (as well as closed mali/img/adreno drivers.. maybe
+            the issue will actually get fixed when a new enough skia+
+            ANGLE hits the closed drivers on android).
+
+            Workaround the issue by spoofing the vendor string so
+            skia doesn't pick the broken ANGLE codepath.  Other
+            electron apps will have the same problem, and should be
+            listed here as well.
+         -->
+        <application name="Chromium" executable="chromium">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+        <application name="Chromium" executable="chromium-browser">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+        <application name="Chromium" executable="chrome">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+        <application name="VS Code" executable="code">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+        <application name="element-desktop" executable="element-desktop">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+        <application name="vivaldi-bin" executable="vivaldi-bin">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+        <application name="code" executable="vivaldi-bin">
+            <option name="force_gl_vendor" value="angleisbroken"/>
+        </application>
+    </device>
+
     <device driver="turnip">
         <!-- Up to DXVK version 2.3.0 -->
         <engine engine_name_match="DXVK" engine_versions="0:8400896">