add cairo

1 files changed, 90 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/clip-fill-rule-pixel-aligned.c b/libs/cairo-1.16.0/test/clip-fill-rule-pixel-aligned.c
new file mode 100644
index 0000000..210afcb
--- /dev/null
+++ b/libs/cairo-1.16.0/test/clip-fill-rule-pixel-aligned.c
@@ -0,0 +1,90 @@
+/*
+ * 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>
+ */
+
+#include "cairo-test.h"
+
+#define PAD 1
+#define SIZE 5
+
+static void
+pixel_aligned_path (cairo_t *cr)
+{
+    cairo_save (cr);
+    {
+	cairo_scale (cr, SIZE, SIZE);
+	cairo_move_to     (cr,  1,  0);
+	cairo_rel_line_to (cr,  1,  0);
+	cairo_rel_line_to (cr,  0,  3);
+	cairo_rel_line_to (cr,  1,  0);
+	cairo_rel_line_to (cr,  0, -1);
+	cairo_rel_line_to (cr, -3,  0);
+	cairo_rel_line_to (cr,  0, -1);
+	cairo_rel_line_to (cr,  4,  0);
+	cairo_rel_line_to (cr,  0,  3);
+	cairo_rel_line_to (cr, -3,  0);
+	cairo_rel_line_to (cr,  0, -4);
+	cairo_close_path (cr);
+    }
+    cairo_restore (cr);
+}
+
+/* Use clipping to draw 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); /* red */
+
+    cairo_translate (cr, PAD, PAD);
+
+    cairo_save (cr);
+    {
+	pixel_aligned_path (cr);
+	cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
+	cairo_clip (cr);
+	cairo_paint (cr);
+    }
+    cairo_restore (cr);
+
+    cairo_translate (cr, SIZE*4 + PAD, 0);
+
+    cairo_save (cr);
+    {
+	pixel_aligned_path (cr);
+	cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
+	cairo_clip (cr);
+	cairo_paint (cr);
+    }
+    cairo_restore (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (clip_fill_rule_pixel_aligned,
+	    "Tests interaction of clipping and cairo_set_fill_rule with a pixel-aligned path",
+	    "clip", /* keywords */
+	    NULL, /* requirements */
+	    PAD + (SIZE*4) + PAD + (SIZE*4) + PAD,
+	    PAD + (SIZE*4) + PAD,
+	    NULL, draw)