Index: test/.cvsignore =================================================================== RCS file: /cvs/cairo/cairo/test/.cvsignore,v retrieving revision 1.47 diff -u -u -r1.47 .cvsignore --- test/.cvsignore 19 Aug 2005 19:02:14 -0000 1.47 +++ test/.cvsignore 19 Aug 2005 23:11:29 -0000 @@ -40,6 +40,7 @@ ps-surface ps-surface.ps pixman-rotate +rectangle-rounding-error rel-path scale-source-surface-paint select-font-no-show-text Index: test/Makefile.am =================================================================== RCS file: /cvs/cairo/cairo/test/Makefile.am,v retrieving revision 1.83 diff -u -u -r1.83 Makefile.am --- test/Makefile.am 19 Aug 2005 19:02:14 -0000 1.83 +++ test/Makefile.am 19 Aug 2005 23:11:30 -0000 @@ -29,6 +29,7 @@ paint-with-alpha \ path-data \ pixman-rotate \ +rectangle-rounding-error \ scale-source-surface-paint \ select-font-no-show-text \ self-copy \ @@ -100,6 +101,7 @@ paint-with-alpha-ref.png \ path-data-ref.png \ pixman-rotate-ref.png \ +rectangle-rounding-error.png \ romedalen.png \ self-copy-ref.png \ self-intersecting-ref.png \ @@ -209,6 +211,7 @@ pdf_clip_LDADD = $(LDADDS) ps_surface_LDADD = $(LDADDS) pixman_rotate_LDADD = $(LDADDS) +rectangle_rounding_error_LDADD = $(LDADDS) scale_source_surface_paint_LDADD = $(LDADDS) select_font_no_show_text_LDADD = $(LDADDS) self_copy_LDADD = $(LDADDS) Index: test/rectangle-rounding-error.c =================================================================== RCS file: test/rectangle-rounding-error.c diff -N test/rectangle-rounding-error.c --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ test/rectangle-rounding-error.c 19 Aug 2005 23:11:30 -0000 @@ -0,0 +1,68 @@ +/* + * 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 + * Billy Biggs not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Billy Biggs makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * BERTRAM FELGENHAUER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL BILLY BIGGS 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 + */ + +#include "cairo-test.h" + +cairo_test_t test = { + "rectangle-rounding-error", + "This demonstrates (or not) a rounding error that causes a gap between " + "two neighbouring rectangles.", + 80, 80 +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + 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_set_antialias(cr, CAIRO_ANTIALIAS_NONE); + + 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); +}