Grcov report - device-offset-scale.c

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/*

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 * Copyright © 2008 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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 * Authors: Michael Ventnor, Jeff Muizelaar

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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 cairo_test_status_t

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3

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

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    cairo_surface_t *second;

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    cairo_t *second_cr;

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    /* fill with black so we don't need an rgb test case */

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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_scale (cr, 0.5, 0.5);

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    /* draw the first rectangle */

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3

    cairo_set_source_rgb (cr, 0, 0, 0.4);

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3

    cairo_rectangle (cr, 6, 6, 10, 10);

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3

    cairo_fill (cr);

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    /* adjust the offset so that the second rectangle will fit on the surface */

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3

    second = cairo_image_surface_create (CAIRO_FORMAT_A8, 10, 10);

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3

    cairo_surface_set_device_offset (second, -6, -6);

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    /* draw the second rectangle:

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     * this rectangle should end up in the same place as the rectangle above

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     * independent of the device offset of the surface it is painted on*/

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3

    second_cr = cairo_create (second);

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3

    cairo_surface_destroy (second);

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3

    cairo_rectangle (second_cr, 6, 6, 10, 10);

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3

    cairo_fill (second_cr);

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    /* paint the second rectangle on top of the first rectangle */

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3

    cairo_set_source_rgb (cr, 0.5, 0.5, 0);

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3

    cairo_mask_surface (cr, cairo_get_target (second_cr), 0, 0);

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3

    cairo_destroy (second_cr);

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3

    return CAIRO_TEST_SUCCESS;

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/*

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 * XFAIL: complication of pre-multiplying device_offset into the pattern_matrix

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 * and then requiring further manipulation for SVG

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*/

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CAIRO_TEST (device_offset_scale,

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	    "Test that the device-offset transform is transformed by the ctm.",

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	    "device-offset", /* keywords */

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	    NULL, /* requirements */

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	    WIDTH, HEIGHT,

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	    NULL, draw)