From 218aa7794136c6a9bc55d5c8c31e0ba450cf0f0b Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Thu, 10 Sep 2020 17:55:50 -0400
Subject: [PATCH] egl: Clear EGL_WINDOW_BIT for non-double-buffered EGLConfigs

EGL windows are not required to support single-buffered rendering,
and it's awful, so let's not.

Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22685>
---
 src/egl/drivers/dri2/egl_dri2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index ff17f02..90b8a62 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -565,6 +565,9 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
    if (double_buffer) {
       surface_type &= ~EGL_PIXMAP_BIT;
    }
+   else {
+      surface_type &= ~EGL_WINDOW_BIT;
+   }
 
    if (!surface_type)
       return NULL;
-- 
2.7.4