From 4f4c73f8f952fb6d963d58480b37c57b15e2d643 Mon Sep 17 00:00:00 2001
From: Chia-I Wu <olvaffe@gmail.com>
Date: Thu, 7 Feb 2019 15:11:57 -0800
Subject: [PATCH 3/4] FROMLIST: egl: fix KHR_partial_update without
 EXT_buffer_age

EGL_BUFFER_AGE_EXT can be queried without EXT_buffer_age.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
(cherry picked from commit 30c31f2d0eadd7b6d587a37673e059d998960b4f)
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>

Change-Id: I71eaedb652a3fe6a8a18bccf87f693303c8e703b
---
 src/egl/main/eglsurface.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c
index cd1c7ea4c561..42f8ca4ad051 100644
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -522,7 +522,12 @@ _eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
       *value = surface->PostSubBufferSupportedNV;
       break;
    case EGL_BUFFER_AGE_EXT:
-      if (!dpy->Extensions.EXT_buffer_age)
+      /* Both EXT_buffer_age and KHR_partial_update accept EGL_BUFFER_AGE_EXT.
+       * To be precise, the KHR one accepts EGL_BUFFER_AGE_KHR which is an
+       * alias with the same numeric value.
+       */
+      if (!dpy->Extensions.EXT_buffer_age &&
+          !dpy->Extensions.KHR_partial_update)
          return _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
 
       _EGLContext *ctx = _eglGetCurrentContext();
-- 
2.20.1