1/*
2 * Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#ifndef __SAFE_ALLOC_H__
27#define __SAFE_ALLOC_H__
28
29#include "j2d_md.h"
30
31/*
32 * Macroses defined below are wrappers for alloc functions
33 * that perform buffer size calculation with integer overflow
34 * check.
35 */
36#define SAFE_TO_ALLOC_2(c, sz) \
37 (((c) > 0) && ((sz) > 0) && \
38 ((0x7fffffff / (c)) > (sz)))
39
40#define SAFE_TO_ALLOC_3(w, h, sz) \
41 (((w) > 0) && ((h) > 0) && ((sz) > 0) && \
42 (((0x7fffffff / (w)) / (h)) > (sz)))
43
44#endif // __SAFE_ALLOC_H__
45