mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-20 15:10:08 +01:00
69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/*
|
|
* Copyright © 2005 Bertram Felgenhauer
|
|
*
|
|
* 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
|
|
* the author not be used in advertising or publicity pertaining to
|
|
* distribution of the software without specific, written prior
|
|
* permission. The author makes no representations about the
|
|
* suitability of this software for any purpose. It is provided "as
|
|
* is" without express or implied warranty.
|
|
*
|
|
* THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
|
|
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS, IN NO EVENT SHALL THE AUTHOR. 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: Bertram Felgenhauer <int-e@gmx.de>
|
|
*/
|
|
|
|
#include "cairo-test.h"
|
|
|
|
/* Test case for:
|
|
*
|
|
* https://bugs.freedesktop.org/show_bug.cgi?id=4137
|
|
*/
|
|
|
|
cairo_test_t test = {
|
|
"rectangle-rounding-error",
|
|
"This demonstrates (or not) a rounding error that causes a gap between "
|
|
"two neighbouring rectangles.",
|
|
76, 76
|
|
};
|
|
|
|
static cairo_test_status_t
|
|
draw (cairo_t *cr, int width, int height)
|
|
{
|
|
cairo_set_source_rgb (cr, 1, 1, 1);
|
|
cairo_paint (cr);
|
|
|
|
cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
|
|
cairo_set_source_rgb (cr, 0, 0, 0);
|
|
|
|
cairo_translate(cr, -300, -300);
|
|
cairo_scale(cr, 677.0/26, 677.0/26);
|
|
cairo_translate(cr, 1, 1);
|
|
|
|
/* this should draw a seamless 2x2 rectangle */
|
|
cairo_rectangle(cr, 11, 11, 1, 1);
|
|
cairo_rectangle(cr, 11, 12, 1, 1);
|
|
cairo_rectangle(cr, 12, 11, 1, 1);
|
|
cairo_rectangle(cr, 12, 12, 1, 1);
|
|
|
|
cairo_set_source_rgb(cr, 0, 0, 0);
|
|
cairo_fill(cr);
|
|
|
|
return CAIRO_TEST_SUCCESS;
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
return cairo_test (&test, draw);
|
|
}
|