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/*
* Copyright © 2005 Red Hat, Inc.
* Copyright © 2021 Manuel Stoeckl
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* Author: Carl Worth <cworth@cworth.org>
* Author: Manuel Stoeckl <code@mstoeckl.com>
*/
#include "cairo-test.h"
#include <stdlib.h>
#define WIDTH 2
#define HEIGHT 2
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const cairo_test_context_t *ctx = cairo_test_get_context (cr);
char *filename;
cairo_surface_t *surface;
xasprintf (&filename, "%s/reference/%s",
ctx->srcdir, "create-from-png-16bit.base.png");
surface = cairo_image_surface_create_from_png (filename);
if (cairo_surface_status (surface)) {
cairo_test_status_t result;
result = cairo_test_status_from_status (ctx,
cairo_surface_status (surface));
if (result == CAIRO_TEST_FAILURE) {
cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
filename,
cairo_status_to_string (cairo_surface_status (surface)));
}
free (filename);
return result;
/* Pretend we modify the surface data (which detaches the PNG mime data) */
cairo_surface_flush (surface);
cairo_surface_mark_dirty (surface);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
cairo_paint (cr);
cairo_surface_destroy (surface);
return CAIRO_TEST_SUCCESS;
CAIRO_TEST (create_from_png_16bit,
"Tests the creation of an image surface from a 16 bit PNG file",
"png", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)