picturedream.utils
Class BinaryUtils

java.lang.Object
  |
  +--picturedream.utils.BinaryUtils

public class BinaryUtils

extends java.lang.Object

Title: PictureDream

Description:

Copyright: Copyright (c) 2003 MRoc

Organisation: MRoc Audiosolutions

Version:

1.0

Author:

MRoc

Field Summary

static int[]	BITS8 some static fields to mask bits
static boolean	DEBUG set this value to false to prevent console output
private static java.lang.String[]	HEX

Constructor Summary

BinaryUtils()

Method Summary

static int	makeIntFrom2BytesBigEndian(byte[] bytes, int offset) makes an int from two bytes from an bytearray from the given offset
static int	makeIntFrom2BytesLittleEndian(byte[] bytes, int offset) makes an int from two bytes from an bytearray from the given offset
static int	makeIntFrom4BytesLittleEndian(byte[] bytes, int offset) returns an int made out of four bytes (32bit) from an bytearray from the given offset
static void	put2BytesToBufferLittleEndian(int value, ByteBuffer buffer) puts the given int as 2 bytes to the buffer, in little endian align, means lowest byte first (reverse representation from memory)
static void	put2BytesToBufferLittleEndian(short value, byte[] buffer, int offset) puts the given int as 2 bytes to the buffer, in little endian align, means lowest byte first (reverse representation from memory)
static void	put4BytesToBufferBigEndian(int value, byte[] buffer, int offset) puts the given int as 4 bytes to the buffer, in big endian align, means highest byte first (normal representation like in memory)
static void	put4BytesToBufferBigEndian(int value, ByteBuffer buffer) puts the given int as 4 bytes to the buffer, in big endian align, means highest byte first (normal representation like in memory)
static void	put4BytesToBufferLittleEndian(int value, byte[] buffer, int offset) puts the given int as 4 bytes to the given buffer at the given offset
static void	put4BytesToBufferLittleEndian(int value, ByteBuffer buffer) puts the given int as 4 bytes to the buffer, in little endian align, means lowest byte first (reverse representation from memory)
static java.lang.String	toHexString(byte b) returns the unsigned byte as hex string left filled with zeros, (means allways two characters)
static java.lang.String	toHexString4(int i) returns the unsigned int as hex string left filled with zeros, (means allways four characters)

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

BITS8

public static final int[] BITS8

some static fields to mask bits

HEX

private static final java.lang.String[] HEX

DEBUG

public static boolean DEBUG

set this value to false to prevent console output

Constructor Detail

BinaryUtils

public BinaryUtils()

Method Detail

put4BytesToBufferLittleEndian

public static void put4BytesToBufferLittleEndian(int value,
                                                 ByteBuffer buffer)

puts the given int as 4 bytes to the buffer, in little endian align, means lowest byte first (reverse representation from memory)

put4BytesToBufferLittleEndian

public static void put4BytesToBufferLittleEndian(int value,
                                                 byte[] buffer,
                                                 int offset)

puts the given int as 4 bytes to the given buffer at the given offset

put4BytesToBufferBigEndian

public static void put4BytesToBufferBigEndian(int value,
                                              ByteBuffer buffer)

puts the given int as 4 bytes to the buffer, in big endian align, means highest byte first (normal representation like in memory)

put4BytesToBufferBigEndian

public static void put4BytesToBufferBigEndian(int value,
                                              byte[] buffer,
                                              int offset)

puts the given int as 4 bytes to the buffer, in big endian align, means highest byte first (normal representation like in memory)

put2BytesToBufferLittleEndian

public static void put2BytesToBufferLittleEndian(int value,
                                                 ByteBuffer buffer)

puts the given int as 2 bytes to the buffer, in little endian align, means lowest byte first (reverse representation from memory)

put2BytesToBufferLittleEndian

public static void put2BytesToBufferLittleEndian(short value,
                                                 byte[] buffer,
                                                 int offset)

puts the given int as 2 bytes to the buffer, in little endian align, means lowest byte first (reverse representation from memory)

toHexString

public static java.lang.String toHexString(byte b)

returns the unsigned byte as hex string left filled with zeros, (means allways two characters)

toHexString4

public static java.lang.String toHexString4(int i)

returns the unsigned int as hex string left filled with zeros, (means allways four characters)

makeIntFrom4BytesLittleEndian

public static int makeIntFrom4BytesLittleEndian(byte[] bytes,
                                                int offset)

returns an int made out of four bytes (32bit) from an bytearray from the given offset

makeIntFrom2BytesLittleEndian

public static int makeIntFrom2BytesLittleEndian(byte[] bytes,
                                                int offset)

makes an int from two bytes from an bytearray from the given offset

makeIntFrom2BytesBigEndian

public static int makeIntFrom2BytesBigEndian(byte[] bytes,
                                             int offset)

makes an int from two bytes from an bytearray from the given offset