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/*
* Copyright © Chris Wilson, 2008
*
* 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
* Chris Wilson not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Chris Wilson makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL CHRIS WILSON 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.
*
* Authors: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
/* This is a test case for the following bug:
*
* crafted gif file will crash firefox
* [XError: 'BadAlloc (insufficient resources for operation)']
* https://bugzilla.mozilla.org/show_bug.cgi?id=424333
*/
#ifdef WORDS_BIGENDIAN
#define RED_MASK 0xA0
#define GREEN_MASK 0xA
#else
#define RED_MASK 0x5
#define GREEN_MASK 0x50
#endif
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_surface_t *surface;
unsigned char *data;
cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
cairo_paint (cr);
surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 32000, 20);
data = cairo_image_surface_get_data (surface);
if (data != NULL) {
int stride = cairo_image_surface_get_stride (surface);
int width = cairo_image_surface_get_width (surface);
int height = cairo_image_surface_get_height (surface);
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < (width + 7) / 8; x++)
data[x] = RED_MASK;
data += stride;
}
cairo_surface_mark_dirty (surface);
}
cairo_set_source_rgb (cr, 1, 0, 0); /* red */
cairo_mask_surface (cr, surface, 0, 0);
cairo_surface_destroy (surface);
surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 20, 32000);
data = cairo_image_surface_get_data (surface);
if (data != NULL) {
int stride = cairo_image_surface_get_stride (surface);
int width = cairo_image_surface_get_width (surface);
int height = cairo_image_surface_get_height (surface);
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < (width + 7) / 8; x++)
data[x] = GREEN_MASK;
data += stride;
}
cairo_surface_mark_dirty (surface);
}
cairo_set_source_rgb (cr, 0, 1, 0); /* green */
cairo_mask_surface (cr, surface, 0, 0);
cairo_surface_destroy (surface);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (large_source,
"Exercises mozilla bug 424333 - handling of massive images",
"stress, source", /* keywords */
NULL, /* requirements */
20, 20,
NULL, draw)
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