2 * Copyright 2012 Andrea Canciani
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Author: Andrea Canciani <ranma42@gmail.com>
27 #include "cairo-test.h"
29 static const char *png_filename = "romedalen.png";
31 static cairo_test_status_t
32 draw (cairo_t *cr, int width, int height)
34 const cairo_test_context_t *ctx = cairo_test_get_context (cr);
35 cairo_format_t format = CAIRO_FORMAT_ARGB32;
37 cairo_surface_t *png, *inv;
41 png = cairo_test_create_surface_from_png (ctx, png_filename);
43 stride = cairo_format_stride_for_width (format, width);
44 data = calloc (stride, height);
45 inv = cairo_image_surface_create_for_data (data + stride * (height - 1),
46 format, width, height, -stride);
48 cr_inv = cairo_create (inv);
49 cairo_set_source_surface (cr_inv, png, 0, 0);
51 cairo_destroy (cr_inv);
53 cairo_set_source_surface (cr, inv, 0, 0);
56 cairo_surface_destroy (png);
58 cairo_surface_finish (inv);
59 cairo_surface_destroy (inv);
63 return CAIRO_TEST_SUCCESS;
66 CAIRO_TEST (negative_stride_image,
67 "Test that images with a negative stride are handled correctly.",
68 "stride, image", /* keywords */
69 NULL, /* requirements */