From c9d449de640f62d83149e64015029b466c44b12c Mon Sep 17 00:00:00 2001
From: Emil Velikov <emil.velikov@collabora.com>
Date: Thu, 3 Aug 2017 19:29:28 +0100
Subject: [PATCH] egl/x11: advertise __DRI_USE_INVALIDATE for DRI2

Back in 2012 (commit 1e7776ca2bc - egl: Remove bogus invalidate code.)
the loader use of invalidate() was purged as "bogus". One of the factors
defining that statement was the lack of the loader-side invalidate
extension - __DRI_USE_INVALIDATE.

Since then the commit was reverted (commit eed0a80137d - egl: Restore
"bogus" DRI2 invalidate event code.), always performing the driver
invalidate call, although the loader was never updated to expose the
extension.

Do so allowing the driver to do fine grained tuning.

Cc: Eric Anholt <eric@anholt.net>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net
---
 src/egl/drivers/dri2/platform_x11.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index 869cb2a36d1..5ca5b912dab 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -1386,6 +1386,7 @@ static const __DRIextension *dri2_loader_extensions_old[] = {
 static const __DRIextension *dri2_loader_extensions[] = {
    &dri2_loader_extension.base,
    &image_lookup_extension.base,
+   &use_invalidate.base,
    &background_callable_extension.base,
    NULL,
 };
-- 
2.30.2