--- /dev/null
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "test-runner.h"
+
+TEST(surface_to_from_global)
+{
+ struct weston_surface *surface;
+ GLfloat x, y;
+ wl_fixed_t fx, fy;
+ int32_t ix, iy;
+
+ surface = weston_surface_create(compositor);
+ weston_surface_configure(surface, 5, 10, 50, 50);
+ weston_surface_update_transform(surface);
+
+ weston_surface_to_global_float(surface, 33, 22, &x, &y);
+ assert(x == 38 && y == 32);
+
+ weston_surface_to_global_float(surface, -8, -2, &x, &y);
+ assert(x == -3 && y == 8);
+
+ weston_surface_to_global_fixed(surface, wl_fixed_from_int(12),
+ wl_fixed_from_int(5), &fx, &fy);
+ assert(fx == wl_fixed_from_int(17) && fy == wl_fixed_from_int(15));
+
+ weston_surface_from_global_float(surface, 38, 32, &x, &y);
+ assert(x == 33 && y == 22);
+
+ weston_surface_from_global_float(surface, 42, 5, &x, &y);
+ assert(x == 37 && y == -5);
+
+ weston_surface_from_global_fixed(surface, wl_fixed_from_int(21),
+ wl_fixed_from_int(100), &fx, &fy);
+ assert(fx = wl_fixed_from_int(16) && fy == wl_fixed_from_int(90));
+
+ weston_surface_from_global(surface, 0, 0, &ix, &iy);
+ assert(ix == -5 && iy == -10);
+
+ weston_surface_from_global(surface, 5, 10, &ix, &iy);
+ assert(ix == 0 && iy == 0);
+
+ wl_display_terminate(compositor->wl_display);
+}