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authorsanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
committersanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
commit530ffd0b7d3c39757b20f00716e486b5caf89aff (patch)
tree76b35fdf57317038acf6b828871f6ae25fce2ebe /libs/cairo-1.16.0/test/miter-precision.c
parent3dbe9332e47c143a237db12440f134caebd1cfbe (diff)
add cairo
Diffstat (limited to 'libs/cairo-1.16.0/test/miter-precision.c')
-rw-r--r--libs/cairo-1.16.0/test/miter-precision.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/miter-precision.c b/libs/cairo-1.16.0/test/miter-precision.c
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+++ b/libs/cairo-1.16.0/test/miter-precision.c
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+/*
+ * Copyright © 2007 Keith Packard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Keith Packard
+ *
+ * Contributor(s):
+ * Keith Packard <keithp@keithp.com>
+ */
+#include "cairo-test.h"
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ double xscale, yscale;
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
+
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ cairo_set_miter_limit (cr, 100000);
+ for (xscale = 1; xscale <= 1000; xscale += 999)
+ for (yscale = 1; yscale <= 1000; yscale += 999)
+ {
+ double max_scale = xscale > yscale ? xscale : yscale;
+ cairo_save (cr);
+ if (xscale > 1)
+ cairo_translate (cr, 50, 0);
+ if (yscale > 1)
+ cairo_translate (cr, 0, 50);
+ cairo_scale (cr, xscale, yscale);
+ cairo_set_line_width (cr, 10.0 / max_scale);
+ cairo_move_to (cr, 10.0 / xscale, 10.0 / yscale);
+ cairo_line_to (cr, 40.0 / xscale, 10.0 / yscale);
+ cairo_line_to (cr, 10.0 / xscale, 30.0 / yscale);
+ cairo_stroke (cr);
+ cairo_restore (cr);
+ }
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (miter_precision,
+ "test how cairo deals with small miters"
+ "\ncurrent code draws inappropriate bevels at times",
+ "stoke, stress", /* keywords */
+ NULL, /* requirements */
+ 120, 100,
+ NULL, draw)