[Mesa-dev] [PATCH rfc 3/3] egl: fix query buffer age fail when EGL_KHR_partial_update

[Qiang Yu]

When no EGL_EXT_buffer_age but has EGL_KHR_partial_update,
query buffer age should not fail.

Signed-off-by: Qiang Yu <yuq825 at gmail.com>
---
 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 3bd14a8cd0..222ef4923d 100644
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -388,7 +388,12 @@ _eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
       *value = surface->PostSubBufferSupportedNV;
       break;
    case EGL_BUFFER_AGE_EXT:
-      if (!dpy->Extensions.EXT_buffer_age)
+      /* EGL_BUFFER_AGE_EXT belong to EGL_EXT_buffer_age
+       * EGL_BUFFER_AGE_KHR belong to EGL_KHR_partial_update
+       * but EGL_BUFFER_AGE_EXT == EGL_BUFFER_AGE_KHR by value
+       */
+      if (!dpy->Extensions.EXT_buffer_age &&
+          !dpy->Extensions.KHR_partial_update)
          return _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
 
       _EGLContext *ctx = _eglGetCurrentContext();
-- 
2.17.1