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/*
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 * Copyright 2008 Chris Wilson
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 *
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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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 *
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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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 *
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 * Author: Chris Wilson <chris@chris-wilson.co.uk>
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 */
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/* Question: are patterns mutable? The answer depends on who you ask... */

            

        

            

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#include "cairo-test.h"

            

        

            

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/* This test is only interesting if the target has alpha */

            

        

            

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static cairo_test_status_t

            

        

            

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

            

        

            

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{

            

        

            

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    cairo_set_source_rgba (cr, 0, 0, 0, .01);

            

        

            

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    cairo_paint (cr);

            

        

            

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    cairo_set_source_surface (cr, cairo_get_target (cr), 1, 1);

            

        

            

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    cairo_paint (cr);

            

        

            

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    return CAIRO_TEST_SUCCESS;

            

        

            

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}

            

        

            

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/*

            

        

            

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 * XFAIL: vector surfaces take snapshot of patterns in contrast to the raster

            

        

            

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 * backends which don't. One solution would be to clone overlapping areas of

            

        

            

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 * dst/source, so patterns were effectively snapshotted across all backends.

            

        

            

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 */

            

        

            

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CAIRO_TEST (self_copy_overlap,

            

        

            

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	    "Tests painting to itself using itself as the source"

            

        

            

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	    "\nBackends treat this case inconsistently---vector backends are creating snapshots.",

            

        

            

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	    "self-copy", /* keywords */

            

        

            

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	    NULL, /* requirements */

            

        

            

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	    200, 200,

            

        

            

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	    NULL, draw)