1 files changed, 77 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/device-offset-scale.c b/libs/cairo-1.16.0/test/device-offset-scale.c
new file mode 100644
index 0000000..33784fa
--- /dev/null
+++ b/libs/cairo-1.16.0/test/device-offset-scale.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright © 2008 Mozilla 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
+ * Mozilla Corporation not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Mozilla Corporation makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION 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.
+ *
+ * Authors: Michael Ventnor, Jeff Muizelaar
+ */
+
+#include "cairo-test.h"
+
+#define WIDTH 20
+#define HEIGHT 20
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_surface_t *second;
+    cairo_t *second_cr;
+
+    /* fill with black so we don't need an rgb test case */
+    cairo_set_source_rgb (cr, 0, 0, 0);
+    cairo_paint (cr);
+
+    cairo_scale (cr, 0.5, 0.5);
+
+    /* draw the first rectangle */
+    cairo_set_source_rgb (cr, 0, 0, 0.4);
+    cairo_rectangle (cr, 6, 6, 10, 10);
+    cairo_fill (cr);
+
+    /* adjust the offset so that the second rectangle will fit on the surface */
+    second = cairo_image_surface_create (CAIRO_FORMAT_A8, 10, 10);
+    cairo_surface_set_device_offset (second, -6, -6);
+
+    /* draw the second rectangle:
+     * this rectangle should end up in the same place as the rectangle above
+     * independent of the device offset of the surface it is painted on*/
+    second_cr = cairo_create (second);
+    cairo_surface_destroy (second);
+    cairo_rectangle (second_cr, 6, 6, 10, 10);
+    cairo_fill (second_cr);
+
+    /* paint the second rectangle on top of the first rectangle */
+    cairo_set_source_rgb (cr, 0.5, 0.5, 0);
+    cairo_mask_surface (cr, cairo_get_target (second_cr), 0, 0);
+    cairo_destroy (second_cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+/*
+ * XFAIL: complication of pre-multiplying device_offset into the pattern_matrix
+ * and then requiring further manipulation for SVG
+ */
+CAIRO_TEST (device_offset_scale,
+	    "Test that the device-offset transform is transformed by the ctm.",
+	    "device-offset", /* keywords */
+	    NULL, /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw)