diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/leaky-dashed-rectangle.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/leaky-dashed-rectangle.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/leaky-dashed-rectangle.c b/libs/cairo-1.16.0/test/leaky-dashed-rectangle.c new file mode 100644 index 0000000..fad859a --- /dev/null +++ b/libs/cairo-1.16.0/test/leaky-dashed-rectangle.c @@ -0,0 +1,86 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson <chris@chris-wilson.co.uk> + * Franz Schmid <Franz.Schmid@altmuehlnet.de> + */ + +/* Test case for bug reported by Franz Schmid <Franz.Schmid@altmuehlnet.de> + * https://lists.cairographics.org/archives/cairo/2008-April/013912.html + * + * See also: https://bugs.freedesktop.org/show_bug.cgi?id=17177 + */ + +#include "cairo-test.h" + +#define WIDTH 60 +#define HEIGHT 60 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double dash[2] = {4, 2}; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0); + + cairo_translate (cr, 0.5, .5); + cairo_set_line_width (cr, 1); /* This is vital to reproduce the bug. */ + + /* First check simple rectangles */ + cairo_set_source_rgb (cr, 0., 0., 0); + cairo_rectangle (cr, -WIDTH/4, -HEIGHT/4, WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_rectangle (cr, WIDTH+WIDTH/4, -HEIGHT/4, -WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_rectangle (cr, -WIDTH/4, HEIGHT+HEIGHT/4, WIDTH, -HEIGHT); + cairo_stroke (cr); + cairo_rectangle (cr, WIDTH+WIDTH/4, HEIGHT+HEIGHT/4, -WIDTH, -HEIGHT); + cairo_stroke (cr); + + cairo_set_dash (cr, dash, 2, 0); + + /* And now dashed. */ + cairo_set_source_rgb (cr, 1., 0., 0); + cairo_rectangle (cr, -WIDTH/4, -HEIGHT/4, WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_set_source_rgb (cr, 0., 1., 0); + cairo_rectangle (cr, WIDTH+WIDTH/4, -HEIGHT/4, -WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_set_source_rgb (cr, 0., 0., 1); + cairo_rectangle (cr, -WIDTH/4, HEIGHT+HEIGHT/4, WIDTH, -HEIGHT); + cairo_stroke (cr); + cairo_set_source_rgb (cr, 1., 1., 0); + cairo_rectangle (cr, WIDTH+WIDTH/4, HEIGHT+HEIGHT/4, -WIDTH, -HEIGHT); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (leaky_dashed_rectangle, + "Exercises bug in which a dashed stroke leaks in from outside the surface", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) |