/* -*- 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 */ #include "cairo-test.h" #include #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)