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1659db2c1f
A forgotten cairo_surface_destroy() caused the similar surface to be leaked during the test.
82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*
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* Copyright © 2006 Red Hat, Inc.
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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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* Red Hat, Inc. 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. Red Hat, Inc. 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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* RED HAT, INC. 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 RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
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*/
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#include "cairo-test.h"
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#include <stddef.h>
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#define SIZE 10
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#define PAD 2
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static void
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draw_square (cairo_t *cr)
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{
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cairo_rectangle (cr,
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PAD, PAD,
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SIZE - 2 * PAD,
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SIZE - 2 * PAD);
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cairo_fill (cr);
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}
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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 *surface, *target;
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cairo_t *cr2;
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/* First draw a shape in blue on the original destination. */
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cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
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draw_square (cr);
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/* Then, create an offset surface and repeat the drawing in red. */
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target = cairo_get_group_target (cr);
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surface = cairo_surface_create_similar (target,
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cairo_surface_get_content (target),
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SIZE / 2, SIZE / 2);
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cr2 = cairo_create (surface);
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cairo_surface_destroy (surface);
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cairo_set_source_rgb (cr2, 1, 0, 0); /* red */
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draw_square (cr2);
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/* Finally, copy the offset surface to the original destination.
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* The final result should be a blue square with the upper-left
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* quarter red. */
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surface = cairo_surface_reference (cairo_get_target (cr2));
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cairo_destroy (cr2);
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cairo_surface_set_device_offset (surface, + SIZE / 2, + SIZE / 2);
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cairo_set_source_surface (cr, surface, SIZE / 2, SIZE / 2);
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cairo_surface_destroy (surface);
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cairo_paint (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (device_offset_positive,
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"Simple test using a surface with a positive device-offset as a source.",
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"device-offset", /* keywords */
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NULL, /* requirements */
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SIZE, SIZE,
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NULL, draw)
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