vrend: only use egl fences on gles profile.

EGL_ANDROID_native_fence_sync only works on gles profiles.

Signed-off-by: Lepton Wu <lepton@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>

src/vrend_renderer.c

@@ -6068,7 +6068,8 @@ int vrend_renderer_init(const struct vrend_if_cbs *cbs, uint32_t flags)
       vrend_state.use_external_blob = true;
 
 #ifdef HAVE_EPOXY_EGL_H
-   vrend_state.use_egl_fence = virgl_egl_supports_fences(egl);
+   if (vrend_state.use_gles)
+      vrend_state.use_egl_fence = virgl_egl_supports_fences(egl);
 #endif
 
    return 0;

src/vrend_winsys_egl.c

@@ -238,7 +238,7 @@ struct virgl_egl *virgl_egl_init(struct virgl_gbm *gbm, bool surfaceless, bool g
    eglMakeCurrent(egl->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
                   egl->egl_ctx);
 
-   if (virgl_egl_supports_fences(egl)) {
+   if (gles && virgl_egl_supports_fences(egl)) {
       egl->signaled_fence = eglCreateSyncKHR(egl->egl_display,
                                              EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
       if (!egl->signaled_fence) {