Grcov report - large-source.c

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/*

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 * Copyright © Chris Wilson, 2008

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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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 * Chris Wilson 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. Chris Wilson 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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 * CHRIS WILSON 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 CHRIS WILSON 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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 * Authors: Chris Wilson <chris@chris-wilson.co.uk>

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*/

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#include "cairo-test.h"

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/* This is a test case for the following bug:

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 *	crafted gif file will crash firefox

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 *	[XError: 'BadAlloc (insufficient resources for operation)']

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 *	https://bugzilla.mozilla.org/show_bug.cgi?id=424333

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*/

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#ifdef WORDS_BIGENDIAN

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#define RED_MASK 0xA0

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#define GREEN_MASK 0xA

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#else

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#define RED_MASK 0x5

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#define GREEN_MASK 0x50

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#endif

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static cairo_test_status_t

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3

draw (cairo_t *cr, int width, int height)

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    cairo_surface_t *surface;

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    unsigned char *data;

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3

    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */

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3

    cairo_paint (cr);

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3

    surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 32000, 20);

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3

    data = cairo_image_surface_get_data (surface);

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3

    if (data != NULL) {

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3

	int stride = cairo_image_surface_get_stride (surface);

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3

	int width  = cairo_image_surface_get_width  (surface);

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3

	int height = cairo_image_surface_get_height (surface);

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	int x, y;

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	for (y = 0; y < height; y++) {

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240060

	    for (x = 0; x < (width + 7) / 8; x++)

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240000

		data[x] = RED_MASK;

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	    data += stride;

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3

        cairo_surface_mark_dirty (surface);

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3

    cairo_set_source_rgb (cr, 1, 0, 0); /* red */

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3

    cairo_mask_surface (cr, surface, 0, 0);

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3

    cairo_surface_destroy (surface);

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3

    surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 20, 32000);

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3

    data = cairo_image_surface_get_data (surface);

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3

    if (data != NULL) {

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3

	int stride = cairo_image_surface_get_stride (surface);

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3

	int width  = cairo_image_surface_get_width  (surface);

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3

	int height = cairo_image_surface_get_height (surface);

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	int x, y;

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96003

	for (y = 0; y < height; y++) {

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384000

	    for (x = 0; x < (width + 7) / 8; x++)

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288000

		data[x] = GREEN_MASK;

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96000

	    data += stride;

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3

        cairo_surface_mark_dirty (surface);

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3

    cairo_set_source_rgb (cr, 0, 1, 0); /* green */

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3

    cairo_mask_surface (cr, surface, 0, 0);

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3

    cairo_surface_destroy (surface);

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3

    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (large_source,

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	    "Exercises mozilla bug 424333 - handling of massive images",

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	    "stress, source", /* keywords */

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	    NULL, /* requirements */

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	    20, 20,

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	    NULL, draw)