/* * 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 */ 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; } CAIRO_TEST (rectangle_rounding_error, "This demonstrates (or not) a rounding error that causes a gap between " "two neighbouring rectangles.", "trap", /* keywords */ "target=raster", /* requirements */ 76, 76, NULL, draw)