diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/large-source.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/large-source.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/large-source.c b/libs/cairo-1.16.0/test/large-source.c new file mode 100644 index 0000000..2b6b84f --- /dev/null +++ b/libs/cairo-1.16.0/test/large-source.c @@ -0,0 +1,100 @@ +/* + * 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) |