add cairo

1 files changed, 80 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/image-bug-710072.c b/libs/cairo-1.16.0/test/image-bug-710072.c
new file mode 100644
index 0000000..9cf0da7
--- /dev/null
+++ b/libs/cairo-1.16.0/test/image-bug-710072.c
@@ -0,0 +1,80 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/*
+ * Copyright 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+/*
+ * This test case aims to reproduce the misbehaviour exhibited in
+ * https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/710072
+ * i.e. out of bounds rendering with the rectangular span compositor.
+ */
+
+#include "cairo-test.h"
+
+static cairo_test_status_t
+draw_aligned (cairo_t *cr, int width, int height)
+{
+    cairo_set_source_rgb (cr, 1, 1, 1);
+    cairo_paint (cr);
+
+    cairo_rectangle (cr, -10, -10, 20, 20);
+    cairo_rectangle (cr, 5, 5, 20, 20);
+    cairo_set_source_rgb (cr, 0, 0, 0);
+    cairo_fill_preserve (cr);
+    cairo_set_source_rgba (cr, 1, 0, 0, .5);
+    cairo_stroke (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+draw_unaligned (cairo_t *cr, int width, int height)
+{
+    cairo_set_source_rgb (cr, 1, 1, 1);
+    cairo_paint (cr);
+
+    cairo_rectangle (cr, -10.5, -10.5, 20, 20);
+    cairo_rectangle (cr, 5.5, 5.5, 20, 20);
+    cairo_set_source_rgb (cr, 0, 0, 0);
+    cairo_fill_preserve (cr);
+    cairo_set_source_rgba (cr, 1, 0, 0, .5);
+    cairo_stroke (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (image_bug_710072_aligned,
+	    "Tests a bug where we may compute spans greater than bounded extents",
+	    "extents, fill, stroke", /* keywords */
+	    NULL, /* requirements */
+	    15, 15,
+	    NULL, draw_aligned)
+
+CAIRO_TEST (image_bug_710072_unaligned,
+	    "Tests a bug where we may compute spans greater than bounded extents",
+	    "extents, fill, stroke", /* keywords */
+	    NULL, /* requirements */
+	    15, 15,
+	    NULL, draw_unaligned)