Grcov report - source-clip-scale.c

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/*

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 * Copyright © 2005 Mozilla Corporation

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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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 * Mozilla Corporation 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. Mozilla Corporation 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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 * MOZILLA CORPORATION 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 MOZILLA CORPORATION 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: Vladimir Vukicevic <vladimir@pobox.com>

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*/

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#include "cairo-test.h"

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#include <math.h>

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#include <stdio.h>

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#define SIZE 12

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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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    cairo_surface_t *source;

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    cairo_t *cr2;

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3

    source = cairo_surface_create_similar (cairo_get_group_target (cr),

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					   CAIRO_CONTENT_COLOR_ALPHA,

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					   SIZE, SIZE);

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3

    cr2 = cairo_create (source);

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3

    cairo_surface_destroy (source);

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    /* Fill the source surface with green */

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3

    cairo_set_source_rgb (cr2, 0, 1, 0);

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3

    cairo_paint (cr2);

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    /* Draw a blue square in the middle of the source with clipping.

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     * Note that we are only clipping within a save/restore block but

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     * the buggy behavior demonstrates that the clip remains present

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     * on the surface. */

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3

    cairo_save (cr2);

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3

    cairo_rectangle (cr2,

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		     SIZE / 4, SIZE / 4,

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		     SIZE / 2, SIZE / 2);

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3

    cairo_clip (cr2);

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3

    cairo_set_source_rgb (cr2, 0, 0, 1);

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3

    cairo_paint (cr2);

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3

    cairo_restore (cr2);

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    /* Fill the destination surface with solid red (should not appear

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     * in final result) */

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3

    cairo_set_source_rgb (cr, 1, 0, 0);

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3

    cairo_paint (cr);

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    /* Now draw the source surface onto the destination with scaling. */

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3

    cairo_scale (cr, 2.0, 1.0);

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3

    cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0);

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3

    cairo_destroy (cr2);

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3

    cairo_paint (cr);

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3

    return CAIRO_TEST_SUCCESS;

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1

CAIRO_TEST (source_clip_scale,

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	    "Test that a source surface is not affected by a clip when scaling",

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	    "clip", /* keywords */

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	    NULL, /* requirements */

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	    SIZE * 2, SIZE,

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	    NULL, draw)