add cairo

1 files changed, 93 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/degenerate-radial-gradient.c b/libs/cairo-1.16.0/test/degenerate-radial-gradient.c
new file mode 100644
index 0000000..1466645
--- /dev/null
+++ b/libs/cairo-1.16.0/test/degenerate-radial-gradient.c
@@ -0,0 +1,93 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/*
+ * Copyright 2010 Andrea Canciani
+ *
+ * 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: Andrea Canciani <ranma42@gmail.com>
+ */
+
+#include "cairo-test.h"
+
+#define NUM_EXTEND 4
+#define HEIGHT 32
+#define WIDTH 32
+#define PAD 6
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_pattern_t *pattern;
+    unsigned int i, j;
+
+    cairo_extend_t extend[NUM_EXTEND] = {
+	CAIRO_EXTEND_NONE,
+	CAIRO_EXTEND_REPEAT,
+	CAIRO_EXTEND_REFLECT,
+	CAIRO_EXTEND_PAD
+    };
+
+    cairo_test_paint_checkered (cr);
+
+    cairo_translate (cr, PAD, PAD);
+
+    for (i = 0; i < 3; i++) {
+        cairo_save (cr);
+	
+	for (j = 0; j < NUM_EXTEND; j++) {
+	    cairo_reset_clip (cr);
+	    cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
+	    cairo_clip (cr);
+
+	    if (i == 0)
+		pattern = cairo_pattern_create_radial (WIDTH/2, HEIGHT/2, 0, WIDTH/2, HEIGHT/2, 0);
+	    else if (i == 1)
+		pattern = cairo_pattern_create_radial (WIDTH/2, HEIGHT/2, 2*PAD, WIDTH/2, HEIGHT/2, 2*PAD);
+	    else if (i == 2)
+		pattern = cairo_pattern_create_radial (PAD, PAD, 0, WIDTH-PAD, HEIGHT-PAD, 0);
+
+	    cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 1);
+	    cairo_pattern_add_color_stop_rgba (pattern, sqrt (1.0 / 2.0), 0, 1, 0, 0);
+	    cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 1, 0.5);
+
+	    cairo_pattern_set_extend (pattern, extend[j]);
+
+	    cairo_set_source (cr, pattern);
+	    cairo_paint (cr);
+
+	    cairo_pattern_destroy (pattern);
+
+	    cairo_translate (cr, WIDTH+PAD, 0);
+	}
+
+	cairo_restore (cr);
+	cairo_translate (cr, 0, HEIGHT+PAD);
+    }
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (degenerate_radial_gradient,
+	    "Tests degenerate radial gradients",
+	    "radial, pattern, extend", /* keywords */
+	    NULL, /* requirements */
+	    (WIDTH+PAD) * NUM_EXTEND + PAD, 3*(HEIGHT + PAD) + PAD,
+	    NULL, draw)