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71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
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* Copyright 2012 Andrea Canciani
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: Andrea Canciani <ranma42@gmail.com>
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*/
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#include "cairo-test.h"
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static const char *png_filename = "romedalen.png";
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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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const cairo_test_context_t *ctx = cairo_test_get_context (cr);
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cairo_format_t format = CAIRO_FORMAT_ARGB32;
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cairo_t *cr_inv;
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cairo_surface_t *png, *inv;
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uint8_t *data;
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int stride;
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png = cairo_test_create_surface_from_png (ctx, png_filename);
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stride = cairo_format_stride_for_width (format, width);
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data = calloc (stride, height);
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inv = cairo_image_surface_create_for_data (data + stride * (height - 1),
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format, width, height, -stride);
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cr_inv = cairo_create (inv);
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cairo_set_source_surface (cr_inv, png, 0, 0);
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cairo_paint (cr_inv);
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cairo_destroy (cr_inv);
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cairo_set_source_surface (cr, inv, 0, 0);
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cairo_paint (cr);
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cairo_surface_destroy (png);
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cairo_surface_finish (inv);
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cairo_surface_destroy (inv);
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free (data);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (negative_stride_image,
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"Test that images with a negative stride are handled correctly.",
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"stride, image", /* keywords */
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NULL, /* requirements */
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256, 192,
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NULL, draw)
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