[PATCH xserver 10/10] xwayland: EGL_IMG_context_priority required by EGLStream

[Olivier Fourdan]

xwl_glamor_eglstream_init_egl() uses "EGL_IMG_context_priority"
extension, make sure it's actually available before using it.

Suggested-by: Emil Velikov <emil.velikov at collabora.com>
Signed-off-by: Olivier Fourdan <ofourdan at redhat.com>
---
 hw/xwayland/xwayland-glamor-eglstream.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/xwayland/xwayland-glamor-eglstream.c b/hw/xwayland/xwayland-glamor-eglstream.c
index c226c0089..43f34eed1 100644
--- a/hw/xwayland/xwayland-glamor-eglstream.c
+++ b/hw/xwayland/xwayland-glamor-eglstream.c
@@ -794,6 +794,12 @@ xwl_glamor_eglstream_init_egl(struct xwl_screen *xwl_screen)
         goto error;
     }
 
+    if (!epoxy_has_egl_extension(xwl_screen->egl_display,
+                                 "EGL_IMG_context_priority")) {
+        ErrorF("EGL_IMG_context_priority not available\n");
+        goto error;
+    }
+
     eglChooseConfig(xwl_screen->egl_display, config_attribs, &config, 1, &n);
     if (!n) {
         ErrorF("No acceptable EGL configs found\n");
-- 
2.17.1