mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-20 08:10:08 +01:00
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
|
|
/*
|
|
* Copyright 2010 Andrea Canciani
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
* Author: Andrea Canciani <ranma42@gmail.com>
|
|
*/
|
|
|
|
#include "cairo-test.h"
|
|
#include <float.h>
|
|
|
|
#define SIZE 8
|
|
|
|
/*
|
|
cairo_arc can hang in an infinite loop if given huge (so big that
|
|
adding/subtracting 4*M_PI to them doesn't change the value because
|
|
of floating point rounding).
|
|
|
|
The purpose of this test is to check that cairo doesn't hang or crash.
|
|
*/
|
|
|
|
static cairo_test_status_t
|
|
draw (cairo_t *cr, int width, int height)
|
|
{
|
|
cairo_set_source_rgb (cr, 1, 1, 1);
|
|
cairo_paint (cr);
|
|
|
|
/* Check if the code that guarantees start <= end hangs */
|
|
cairo_arc (cr, 0, 0, 1, 1024 / DBL_EPSILON * M_PI, 0);
|
|
|
|
/* Check if the code that handles huge angles hangs */
|
|
cairo_arc (cr, 0, 0, 1, 0, 1024 / DBL_EPSILON * M_PI);
|
|
|
|
return CAIRO_TEST_SUCCESS;
|
|
}
|
|
|
|
CAIRO_TEST (arc_infinite_loop,
|
|
"Test cairo_arc with huge angles",
|
|
"arc", /* keywords */
|
|
NULL, /* requirements */
|
|
SIZE, SIZE,
|
|
NULL, draw)
|