Grcov report - large-source-roi.c

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/*

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 * Copyright © 2009 Joonas Pihlaja

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

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 * documentation for any purpose is hereby granted without fee, provided that

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 * the above copyright notice appear in all copies and that both that copyright

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 * notice and this permission notice appear in supporting documentation, and

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 * that the name of the copyright holders not be used in advertising or

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 * publicity pertaining to distribution of the software without specific,

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 * written prior permission.  The copyright holders make no representations

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 * about the 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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 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

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 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

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 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR

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 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

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 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

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 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE

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 * OF THIS SOFTWARE.

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*/

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#include "cairo-test.h"

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/* This test attempts to trigger failures in those clone_similar

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 * backend methods that have size restrictions. */

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static cairo_surface_t *

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3

create_large_source (int width, int height)

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    cairo_surface_t *surface;

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    cairo_t *cr;

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3

    surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);

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3

    cr = cairo_create (surface);

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3

    cairo_surface_destroy (surface);

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3

    cairo_set_source_rgb (cr, 1,0,0); /* red */

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3

    cairo_paint (cr);

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3

    surface = cairo_surface_reference (cairo_get_target (cr));

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3

    cairo_destroy (cr);

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3

    return surface;

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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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    /* Since 1cc750ed92a936d84b47cac696aaffd226e1c02e pixman will not

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     * paint on the source surface if source_width > 30582. */

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3

    double source_width = 30000.0;

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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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    /* Create an excessively wide source image, all red. */

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3

    source = create_large_source (source_width, height);

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    /* Set a transform so that the source is scaled down to fit in the

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     * destination horizontally and then paint the entire source to

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     * the context. */

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3

    cairo_scale (cr, width/source_width, 1.0);

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3

    cairo_set_source_surface (cr, source, 0, 0);

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3

    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);

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3

    cairo_paint (cr);

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3

    cairo_surface_destroy (source);

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3

    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (large_source_roi,

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	    "Uses a all of a large source image.",

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	    "stress, source", /* keywords */

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	    NULL, /* requirements */

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	    7, 7,

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	    NULL, draw)