Grcov report - unantialiased-shapes.c

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/*

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 * Copyright © 2005 Billy Biggs

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 * Permission to use, copy, modify, distribute, and sell this software

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 * and its documentation for any purpose is hereby granted without

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 * fee, provided that the above copyright notice appear in all copies

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 * and that both that copyright notice and this permission notice

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 * appear in supporting documentation, and that the name of

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 * Billy Biggs not be used in advertising or publicity pertaining to

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 * distribution of the software without specific, written prior

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 * permission. Billy Biggs makes no representations about the

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 * suitability of this software for any purpose.  It is provided "as

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 * is" without express or implied warranty.

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 * BILLY BIGGS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS

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 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

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 * FITNESS, IN NO EVENT SHALL BILLY BIGGS BE LIABLE FOR ANY SPECIAL,

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 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER

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 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION

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 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR

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 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 * Author: Billy Biggs <vektor@dumbterm.net>

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*/

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#include "cairo-test.h"

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/* The star shape from the SVG test suite, from the fill rule test */

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static void

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3

big_star_path (cairo_t *cr)

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3

    cairo_move_to (cr, 40, 0);

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3

    cairo_rel_line_to (cr, 25, 80);

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3

    cairo_rel_line_to (cr, -65, -50);

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3

    cairo_rel_line_to (cr, 80, 0);

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3

    cairo_rel_line_to (cr, -65, 50);

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3

    cairo_close_path (cr);

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3

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static cairo_test_status_t

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3

draw (cairo_t *cr, int width, int height)

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    int i;

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3

    cairo_set_source_rgb (cr, 0, 0, 0);

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3

    cairo_paint (cr);

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3

    cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);

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    /* Try a circle */

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3

    cairo_arc (cr, 40, 40, 20, 0, 2 * M_PI);

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3

    cairo_set_source_rgb (cr, 1, 0, 0);

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3

    cairo_fill (cr);

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    /* Try using clipping to draw a circle */

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3

    cairo_arc (cr, 100, 40, 20, 0, 2 * M_PI);

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3

    cairo_clip (cr);

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3

    cairo_rectangle (cr, 80, 20, 40, 40);

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3

    cairo_set_source_rgb (cr, 0, 0, 1);

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3

    cairo_fill (cr);

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    /* Reset the clipping */

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3

    cairo_reset_clip (cr);

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    /* Draw a bunch of lines */

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3

    cairo_set_line_width (cr, 1.0);

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3

    cairo_set_source_rgb (cr, 0, 1, 0);

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    for (i = 0; i < 10; i++) {

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        cairo_move_to (cr, 10, 70 + (i * 4));

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        cairo_line_to (cr, 120, 70 + (i * 18));

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        cairo_stroke (cr);

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    /* Try filling a poly */

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3

    cairo_translate (cr, 160, 120);

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3

    cairo_set_source_rgb (cr, 1, 1, 0);

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3

    big_star_path (cr);

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3

    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);

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    cairo_fill (cr);

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    cairo_translate (cr, -160, -120);

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    /* How about some curves? */

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3

    cairo_set_source_rgb (cr, 1, 0, 1);

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    for (i = 0; i < 10; i++) {

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        cairo_move_to (cr, 150, 50 + (i * 5));

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        cairo_curve_to (cr, 250, 50, 200, (i * 10), 300, 50 + (i * 10));

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        cairo_stroke (cr);

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3

    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (unantialiased_shapes,

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	    "Test shape drawing without antialiasing",

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	    "fill, stroke", /* keywords */

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	    "target=raster", /* requirements */

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	    320, 240,

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	    NULL, draw)