diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/bug-84115.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/bug-84115.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/bug-84115.c b/libs/cairo-1.16.0/test/bug-84115.c new file mode 100644 index 0000000..4db113c --- /dev/null +++ b/libs/cairo-1.16.0/test/bug-84115.c @@ -0,0 +1,61 @@ +/* + * Copyright © 2011 Krzysztof Kosiński + * + * 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: Krzysztof Kosiński <tweenk.pl@gmail.com> + */ + +#include "cairo-test.h" + +#define WIDTH 800 +#define HEIGHT 800 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double lw = 800; + int n = 0; + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_set_source_rgba (cr, 0, 0, 0, .4); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + do { + cairo_set_line_width(cr, lw); + cairo_arc(cr, WIDTH/2, HEIGHT/2, lw/2, + 2*M_PI*(13*n + 1) / 130, 2*M_PI*(13*n + 12) / 130); + cairo_stroke(cr); + + n++; + lw /= 1.1; + } while (lw > 0.5); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_84115, + "Exercises a bug found in stroke generation using trapezoids", + "stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) |