diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/unantialiased-shapes.c')
-rw-r--r-- | libs/cairo-1.16.0/test/unantialiased-shapes.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/unantialiased-shapes.c b/libs/cairo-1.16.0/test/unantialiased-shapes.c new file mode 100644 index 0000000..b53ed0d --- /dev/null +++ b/libs/cairo-1.16.0/test/unantialiased-shapes.c @@ -0,0 +1,98 @@ +/* + * Copyright © 2005 Billy Biggs + * + * 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. + * + * BILLY BIGGS 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: Billy Biggs <vektor@dumbterm.net> + */ + +#include "cairo-test.h" + +/* The star shape from the SVG test suite, from the fill rule test */ +static void +big_star_path (cairo_t *cr) +{ + cairo_move_to (cr, 40, 0); + cairo_rel_line_to (cr, 25, 80); + cairo_rel_line_to (cr, -65, -50); + cairo_rel_line_to (cr, 80, 0); + cairo_rel_line_to (cr, -65, 50); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + /* Try a circle */ + cairo_arc (cr, 40, 40, 20, 0, 2 * M_PI); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + /* Try using clipping to draw a circle */ + cairo_arc (cr, 100, 40, 20, 0, 2 * M_PI); + cairo_clip (cr); + cairo_rectangle (cr, 80, 20, 40, 40); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + + /* Reset the clipping */ + cairo_reset_clip (cr); + + /* Draw a bunch of lines */ + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgb (cr, 0, 1, 0); + for (i = 0; i < 10; i++) { + cairo_move_to (cr, 10, 70 + (i * 4)); + cairo_line_to (cr, 120, 70 + (i * 18)); + cairo_stroke (cr); + } + + /* Try filling a poly */ + cairo_translate (cr, 160, 120); + cairo_set_source_rgb (cr, 1, 1, 0); + big_star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_fill (cr); + cairo_translate (cr, -160, -120); + + /* How about some curves? */ + cairo_set_source_rgb (cr, 1, 0, 1); + for (i = 0; i < 10; i++) { + cairo_move_to (cr, 150, 50 + (i * 5)); + cairo_curve_to (cr, 250, 50, 200, (i * 10), 300, 50 + (i * 10)); + cairo_stroke (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (unantialiased_shapes, + "Test shape drawing without antialiasing", + "fill, stroke", /* keywords */ + "target=raster", /* requirements */ + 320, 240, + NULL, draw) |