mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
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/*
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* Copyright © 2009 Joonas Pihlaja
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*
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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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*
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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_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *source;
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double source_width = 66000.0;
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cairo_set_source_rgb (cr, 1,1,1);
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cairo_paint (cr);
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/* Create an excessively wide source image, all red. */
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source = cairo_image_surface_create (CAIRO_FORMAT_RGB24, source_width, height);
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{
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cairo_t *cr2 = cairo_create (source);
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cairo_set_source_rgb (cr2, 1,0,0); /* red */
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cairo_paint (cr2);
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cairo_destroy (cr2);
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}
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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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cairo_scale (cr, width/source_width, 1.0);
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cairo_set_source_surface (cr, source, 0, 0);
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cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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cairo_paint (cr);
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cairo_surface_destroy (source);
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return CAIRO_TEST_SUCCESS;
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}
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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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20, 20,
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NULL, draw)
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