add cairo

1 files changed, 127 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/fill-rule.c b/libs/cairo-1.16.0/test/fill-rule.c
new file mode 100644
index 0000000..66f19b7
--- /dev/null
+++ b/libs/cairo-1.16.0/test/fill-rule.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright © 2004 Red Hat, Inc.
+ *
+ * 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
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
+ */
+
+/* Bug history
+ *
+ * 2004-10-27  Carl Worth  <cworth@cworth.org>
+ *
+ *   There's currently a regression bug in the tessellation code. This
+ *   causes each of these simple star shapes to be filled incorrectly.
+ *
+ *   It looks like right now we can get this test to pass by doing:
+ *
+ *       cvs update -r 1.16 src/cairo_traps.c
+ *
+ *   But we don't want to revert that change permanently since it
+ *   really does correct some bugs. It must be that the old version of
+ *   the code is masking some other bugs in the tessellation code. My
+ *   current plan is to back this revision up for the next snapshot,
+ *   but not to list the test as an expected failure since I'm
+ *   planning on doing the new tessellator which should fix this
+ *   problem.
+ *
+ * 2005-01-11 Carl Worth <cworth@cworth.org>
+ *
+ *   Keith committed some fixes that fix the original size-20
+ *   star_path:
+ *
+ * 	* src/cairo_wideint.c: (_cairo_int32x32_64_mul),
+ *	(_cairo_int64x64_128_mul):
+ *	* src/cairo_wideint.h:
+ *	int32x32_64_mul and int64x64_128_mul are different from their
+ *	unsigned compatriots
+ *
+ * 2005-01-12 Carl Worth <cworth@cworth.org>
+ *
+ *   Going back to the SVG test suite, however, the original star
+ *   shape is still broken. Adding both shapes now as little_star_path
+ *   and big_star_path.
+ *
+ */
+
+#include "cairo-test.h"
+
+#define LITTLE_STAR_SIZE 20
+#define BIG_STAR_SIZE    80
+
+/* The SVG start trimmed down, but still showing the bug (originally) */
+static void
+little_star_path (cairo_t *cr)
+{
+    cairo_move_to (cr, 10, 0);
+    cairo_rel_line_to (cr, 6, 20);
+    cairo_rel_line_to (cr, -16, -12);
+    cairo_rel_line_to (cr, 20, 0);
+    cairo_rel_line_to (cr, -16, 12);
+}
+
+/* The star shape from the SVG test suite. This was is still buggy even after
+   we got little_star_path working. */
+static void
+big_star_path (cairo_t *cr)
+{
+    cairo_move_to (cr, 40, 0);
+    cairo_rel_line_to (cr, 25, 80);
+    cairo_rel_line_to (cr, -65, -50);
+    cairo_rel_line_to (cr, 80, 0);
+    cairo_rel_line_to (cr, -65, 50);
+    cairo_close_path (cr);
+}
+
+/* Fill the same path twice, once with each fill rule */
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_set_source_rgb (cr, 1, 0, 0);
+
+    cairo_translate (cr, 1, 1);
+    little_star_path (cr);
+    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
+    cairo_fill (cr);
+
+    cairo_translate (cr, LITTLE_STAR_SIZE + 1, 0);
+    little_star_path (cr);
+    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
+    cairo_fill (cr);
+
+    cairo_translate (cr, -(LITTLE_STAR_SIZE + 1), LITTLE_STAR_SIZE + 1);
+    big_star_path (cr);
+    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
+    cairo_fill (cr);
+
+    cairo_translate (cr, BIG_STAR_SIZE + 1, 0);
+    big_star_path (cr);
+    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
+    cairo_fill (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (fill_rule,
+	    "Tests cairo_set_fill_rule with some star shapes",
+	    "fill, path", /* keywords */
+	    NULL, /* requirements */
+	    BIG_STAR_SIZE * 2 + 3, BIG_STAR_SIZE + LITTLE_STAR_SIZE + 3,
+	    NULL, draw)