add cairo

1 files changed, 153 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/hatchings.c b/libs/cairo-1.16.0/test/hatchings.c
new file mode 100644
index 0000000..ca3f2c6
--- /dev/null
+++ b/libs/cairo-1.16.0/test/hatchings.c
@@ -0,0 +1,153 @@
+/*
+ * 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>
+ */
+
+#include "cairo-test.h"
+
+#define STEP	5
+#define WIDTH	100
+#define HEIGHT	100
+
+static void hatching (cairo_t *cr)
+{
+    int i;
+
+    cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
+    cairo_clip (cr);
+
+    for (i = 0; i < WIDTH; i += STEP) {
+	cairo_rectangle (cr, i-1, -2, 2, HEIGHT+4);
+	cairo_rectangle (cr, -2, i-1, WIDTH+4, 2);
+    }
+}
+
+static void background (cairo_t *cr)
+{
+    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+    cairo_set_source_rgb (cr, 1,1,1);
+    cairo_paint (cr);
+}
+
+static void clip_to_quadrant (cairo_t *cr)
+{
+    cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
+    cairo_clip (cr);
+}
+
+static void draw_hatching (cairo_t *cr, void (*func) (cairo_t *))
+{
+    cairo_save (cr); {
+	clip_to_quadrant (cr);
+	hatching (cr);
+	func (cr);
+    } cairo_restore (cr);
+
+    cairo_translate (cr, WIDTH, 0);
+
+    cairo_save (cr); {
+	clip_to_quadrant (cr);
+	cairo_translate (cr, 0.25, 0.25);
+	hatching (cr);
+	func (cr);
+    } cairo_restore (cr);
+
+    cairo_translate (cr, WIDTH, 0);
+
+    cairo_save (cr); {
+	clip_to_quadrant (cr);
+	cairo_translate (cr, WIDTH/2, HEIGHT/2);
+	cairo_rotate (cr, M_PI/4);
+	cairo_translate (cr, -WIDTH/2, -HEIGHT/2);
+	hatching (cr);
+	func (cr);
+    } cairo_restore (cr);
+
+    cairo_translate (cr, WIDTH, 0);
+}
+
+static void do_clip (cairo_t *cr)
+{
+    cairo_clip (cr);
+    cairo_paint (cr);
+}
+
+static void do_clip_alpha (cairo_t *cr)
+{
+    cairo_clip (cr);
+    cairo_paint_with_alpha (cr, .5);
+}
+
+static void hatchings (cairo_t *cr, void (*func) (cairo_t *))
+{
+    cairo_save (cr); {
+	cairo_set_source_rgb(cr, 1, 0, 0);
+	cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT);
+	draw_hatching (cr, func);
+	cairo_set_source_rgb(cr, 0, 0, 1);
+	cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
+	draw_hatching (cr, func);
+    } cairo_restore (cr);
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    background (cr);
+
+
+    /* aligned, misaligned, diagonal; mono repeat
+     * x fill
+     * x clip; paint
+     * x clip; paint-alpha
+     * repeated, for over/source
+     */
+
+    cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+
+    hatchings (cr, cairo_fill);
+    cairo_translate (cr, 0, HEIGHT);
+    hatchings (cr, do_clip);
+    cairo_translate (cr, 0, HEIGHT);
+    hatchings (cr, do_clip_alpha);
+    cairo_translate (cr, 0, HEIGHT);
+
+    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+
+    hatchings (cr, cairo_fill);
+    cairo_translate (cr, 0, HEIGHT);
+    hatchings (cr, do_clip);
+    cairo_translate (cr, 0, HEIGHT);
+    hatchings (cr, do_clip_alpha);
+    cairo_translate (cr, 0, HEIGHT);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (hatchings,
+	    "Test drawing through various aligned/unaliged clips",
+	    "clip, alpha", /* keywords */
+	    "target=raster", /* requirements */
+	    6*WIDTH, 6*HEIGHT,
+	    NULL, draw)