1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/*
* Copyright 2002-2017 Drew Noakes
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.lang;
import com.drew.lang.annotations.NotNull;
/**
* @author Drew Noakes http://drewnoakes.com
*/
public class ByteConvert
{
public static int toInt32BigEndian(@NotNull byte[] bytes)
{
return (bytes[0] << 24 & 0xFF000000) |
(bytes[1] << 16 & 0xFF0000) |
(bytes[2] << 8 & 0xFF00) |
(bytes[3] & 0xFF);
}
public static int toInt32LittleEndian(@NotNull byte[] bytes)
{
return (bytes[0] & 0xFF) |
(bytes[1] << 8 & 0xFF00) |
(bytes[2] << 16 & 0xFF0000) |
(bytes[3] << 24 & 0xFF000000);
}
}
|
