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org.jempeg.empeg.protocol
Class CRC32  

java.lang.Object
  org.jempeg.empeg.protocol.CRC32

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public class CRC32

extends java.lang.Object

The CRC implementation that was "borrowed" from our friends at Empeg.

Version:

$Revision: 1.4 $

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Field Summary
static int[]	crc32tab
private  int	myValue

 

Constructor Summary

CRC32()           Creates a new CRC16 and resets the value

 

Method Summary
EmpegUINT16	getValue()           Returns the current CRC value
void	reset()           Resets the CRC value
void	update(byte[] _buffer)           Updates the CRC with an array of unsigned 8-bit values (cast as bytes)
void	update(byte[] _buffer, int _offset, int _length)           Updates the CRC with an array of unsigned 8-bit values (cast as bytes)
void	update(int _value)           Updates the value with the unsigned 8-bit value
void	update(int[] _buffer)           Updates the CRC with an array of unsigned 8-bit values (cast as ints)
void	update(short[] _buffer)           Updates the CRC with an array of unsigned 8-bit values (cast as shorts)
void	updateSigned16(int _value)           Updates the CRC with a signed 16-bit value
void	updateSigned32(int _value)           Updates the CRC with a signed 32-bit value
void	updateSigned8(int _value)           Updates the CRC with a signed 8-bit value
void	updateUnsigned16(int _value)           Updates the CRC with an unsigned 16-bit value
void	updateUnsigned32(long _value)           Updates the CRC with an unsigned 32-bit value
void	updateUnsigned8(int _value)           Updates the CRC with an unsigned 8-bit value

 

Methods inherited from class java.lang.Object

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

 

Field Detail

crc32tab

public static final int[] crc32tab

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myValue

private int myValue

Constructor Detail

CRC32

public CRC32()

Creates a new CRC16 and resets the value

Method Detail

update

public final void update(byte[] _buffer)

Updates the CRC with an array of unsigned 8-bit values (cast as bytes)

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update

public final void update(byte[] _buffer,
                         int _offset,
                         int _length)

Updates the CRC with an array of unsigned 8-bit values (cast as bytes)

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update

public final void update(short[] _buffer)

Updates the CRC with an array of unsigned 8-bit values (cast as shorts)

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update

public final void update(int[] _buffer)

Updates the CRC with an array of unsigned 8-bit values (cast as ints)

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updateSigned8

public final void updateSigned8(int _value)

Updates the CRC with a signed 8-bit value

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updateUnsigned8

public final void updateUnsigned8(int _value)

Updates the CRC with an unsigned 8-bit value

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updateSigned16

public final void updateSigned16(int _value)

Updates the CRC with a signed 16-bit value

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updateUnsigned16

public final void updateUnsigned16(int _value)

Updates the CRC with an unsigned 16-bit value

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updateSigned32

public final void updateSigned32(int _value)

Updates the CRC with a signed 32-bit value

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updateUnsigned32

public final void updateUnsigned32(long _value)

Updates the CRC with an unsigned 32-bit value

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update

public final void update(int _value)

Updates the value with the unsigned 8-bit value

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getValue

public final EmpegUINT16 getValue()

Returns the current CRC value

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reset

public final void reset()

Resets the CRC value

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> jempeg >> empeg >> [ protocol overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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