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authorsanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
committersanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
commit530ffd0b7d3c39757b20f00716e486b5caf89aff (patch)
tree76b35fdf57317038acf6b828871f6ae25fce2ebe /libs/cairo-1.16.0/test/large-source.c
parent3dbe9332e47c143a237db12440f134caebd1cfbe (diff)
add cairo
Diffstat (limited to 'libs/cairo-1.16.0/test/large-source.c')
-rw-r--r--libs/cairo-1.16.0/test/large-source.c100
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
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+++ b/libs/cairo-1.16.0/test/large-source.c
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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)