Grcov report - clip-image.c

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/*

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 * Copyright 2009 Chris Wilson

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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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 * Chris Wilson 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. Chris Wilson 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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 * CHRIS WILSON 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 CHRIS WILSON 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: Chris Wilson <chris@chris-wilson.co.uk>

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*/

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#include "cairo-test.h"

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#define WIDTH 20

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#define HEIGHT 20

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static const char *png_filename = "romedalen.png";

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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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3

    const cairo_test_context_t *ctx = cairo_test_get_context (cr);

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    cairo_surface_t *image;

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3

    cairo_set_source_rgb (cr, 1, 1, 1);

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3

    cairo_paint (cr);

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3

    image = cairo_test_create_surface_from_png (ctx, png_filename);

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3

    cairo_set_source_surface (cr, image, 0, 0);

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3

    cairo_surface_destroy (image);

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    /* simple clip */

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3

    cairo_save (cr);

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3

    cairo_rectangle (cr, 2, 2, 16, 16);

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3

    cairo_clip (cr);

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3

    cairo_paint (cr);

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3

    cairo_restore (cr);

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3

    cairo_translate (cr, WIDTH, 0);

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    /* unaligned clip */

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3

    cairo_save (cr);

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3

    cairo_rectangle (cr, 2.5, 2.5, 15, 15);

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3

    cairo_clip (cr);

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3

    cairo_paint (cr);

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3

    cairo_restore (cr);

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3

    cairo_translate (cr, -WIDTH, HEIGHT);

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    /* aligned-clip */

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3

    cairo_save (cr);

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3

    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);

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3

    cairo_rectangle (cr, 0, 0, 20, 20);

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3

    cairo_rectangle (cr, 3, 3, 10, 10);

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3

    cairo_rectangle (cr, 7, 7, 10, 10);

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3

    cairo_clip (cr);

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3

    cairo_paint (cr);

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3

    cairo_restore (cr);

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3

    cairo_translate (cr, WIDTH, 0);

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    /* force a clip-mask */

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3

    cairo_save (cr);

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3

    cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI);

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3

    cairo_new_sub_path (cr);

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3

    cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0);

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3

    cairo_new_sub_path (cr);

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3

    cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI);

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3

    cairo_clip (cr);

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3

    cairo_paint (cr);

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3

    cairo_restore (cr);

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3

    return CAIRO_TEST_SUCCESS;

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1

CAIRO_TEST (clip_image,

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	    "Tests painting an image through complex clips.",

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	    "clip, paint", /* keywords */

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	    NULL, /* requirements */

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	    2 * WIDTH, 2 * HEIGHT,

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	    NULL, draw)