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diff --git a/libs/cairo-1.16.0/test/bilevel-image.c b/libs/cairo-1.16.0/test/bilevel-image.c
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+/*
+ * Copyright © 2008 Chris Wilson
+ *
+ * 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
+ * Chris Wilson not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Chris Wilson makes no representations about the
+ * suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL CHRIS WILSON 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.
+ *
+ * Author: Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+#define RGBx 0xffff0000, 0xff00ff00, 0xff0000ff, 0x00000000
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ uint32_t data[] = {
+ RGBx, RGBx, RGBx,
+ RGBx, RGBx, RGBx,
+ RGBx, RGBx, RGBx,
+ RGBx, RGBx, RGBx,
+ };
+ cairo_surface_t *mask;
+
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
+
+ mask = cairo_image_surface_create_for_data ((unsigned char *) data,
+ CAIRO_FORMAT_ARGB32, 12, 4, 48);
+
+ cairo_set_source_surface (cr, mask, 0, 0);
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
+
+ cairo_paint (cr);
+
+ cairo_surface_finish (mask); /* data goes out of scope */
+ cairo_surface_destroy (mask);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (bilevel_image,
+ "Test that PS can embed an RGB image with a bilevel alpha channel.",
+ "alpha, ps", /* keywords */
+ NULL, /* requirements */
+ 12, 4,
+ NULL, draw)