Merge "egl: recover from failed eglMakeCurrent" into oc-dev am: 35c63d45

            egl_tls_t::setContext(EGL_NO_CONTEXT);

        }

    } else {

        // Force return to current context for drivers that cannot handle errors

        EGLBoolean restore_result = EGL_FALSE;

        // get a reference to the old current objects

        ContextRef _c2(dp.get(), cur_c);

        SurfaceRef _d2(dp.get(), cur_c->draw);

        SurfaceRef _r2(dp.get(), cur_c->read);

        if (cur_c == NULL) {

            restore_result = dp->makeCurrent(c, cur_c,

                    EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT,

                    EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);

        } else {

            c = cur_c;

            impl_ctx = c->context;

            impl_draw = EGL_NO_SURFACE;

            if (cur_c->draw != EGL_NO_SURFACE) {

                d = get_surface(cur_c->draw);

                impl_draw = d->surface;

            }

            impl_read = EGL_NO_SURFACE;

            if (cur_c->read != EGL_NO_SURFACE) {

                r = get_surface(cur_c->read);

                impl_read = r->surface;

            }

            restore_result = dp->makeCurrent(c, cur_c,

                    cur_c->draw, cur_c->read, cur_c->context,

                    impl_draw, impl_read, impl_ctx);

        }

        if (restore_result == EGL_TRUE) {

            _c2.acquire();

            _r2.acquire();

            _d2.acquire();

        } else {

            ALOGE("Could not restore original EGL context");

        }

        // this will ALOGE the error

        egl_connection_t* const cnx = &gEGLImpl;

        result = setError(cnx->egl.eglGetError(), (EGLBoolean)EGL_FALSE);