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https://gitlab.freedesktop.org/cairo/cairo.git
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81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
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/*
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* Copyright © 2007 Keith Packard
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Keith Packard
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*
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* Contributor(s):
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* Keith Packard <keithp@keithp.com>
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*/
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#include "cairo-test.h"
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static cairo_test_draw_function_t draw;
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cairo_test_t test = {
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"miter-precision",
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"test how cairo deals with small miters"
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"\ncurrent code draws inappropriate bevels at times",
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120, 100,
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draw
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};
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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double xscale, yscale;
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_set_miter_limit (cr, 100000);
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for (xscale = 1; xscale <= 1000; xscale += 999)
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for (yscale = 1; yscale <= 1000; yscale += 999)
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{
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double max_scale = xscale > yscale ? xscale : yscale;
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cairo_save (cr);
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if (xscale > 1)
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cairo_translate (cr, 50, 0);
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if (yscale > 1)
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cairo_translate (cr, 0, 50);
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cairo_scale (cr, xscale, yscale);
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cairo_set_line_width (cr, 10.0 / max_scale);
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cairo_move_to (cr, 10.0 / xscale, 10.0 / yscale);
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cairo_line_to (cr, 40.0 / xscale, 10.0 / yscale);
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cairo_line_to (cr, 10.0 / xscale, 30.0 / yscale);
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cairo_stroke (cr);
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cairo_restore (cr);
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}
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return CAIRO_TEST_SUCCESS;
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}
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int
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main (void)
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{
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return cairo_test (&test);
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}
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