1 files changed, 72 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clip-zero.c b/libs/cairo-1.16.0/test/clip-zero.c
new file mode 100644
index 0000000..302b2b1
--- /dev/null
+++ b/libs/cairo-1.16.0/test/clip-zero.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright © 2007 Mozilla 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: Vladimir Vukicevic <vladimir@pobox.com>
+ */
+
+#include "cairo-test.h"
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_pattern_t *pat;
+    cairo_surface_t *surf;
+
+    cairo_new_path (cr);
+    cairo_rectangle (cr, 0, 0, 0, 0);
+    cairo_clip (cr);
+
+    cairo_push_group (cr);
+
+    cairo_set_source_rgb (cr, 1, 0, 0);
+
+    cairo_new_path (cr);
+    cairo_rectangle (cr, -10, 10, 20, 20);
+    cairo_fill_preserve (cr);
+    cairo_stroke_preserve (cr);
+    cairo_paint (cr);
+
+    cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+    cairo_show_text (cr, "ABC");
+
+    cairo_mask (cr, cairo_get_source (cr));
+
+    surf = cairo_surface_create_similar (cairo_get_group_target (cr), CAIRO_CONTENT_COLOR_ALPHA, 0, 0);
+    pat = cairo_pattern_create_for_surface (surf);
+    cairo_surface_destroy (surf);
+
+    cairo_mask (cr, pat);
+    cairo_pattern_destroy (pat);
+
+    cairo_pop_group_to_source (cr);
+    cairo_paint (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (clip_zero,
+	    "Verifies that 0x0 surfaces or clips don't cause problems.",
+	    "clip", /* keywords */
+	    NULL, /* requirements */
+	    0, 0,
+	    NULL, draw)