Class BitBuffer

java.lang.Object

nom.tam.fits.compression.algorithm.rice.BitBuffer

public class BitBuffer
extends Object

A bit wise reader writer around a bytebuffer.

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	BITS_OF_1_BYTE
private static final int	BITS_OF_2_BYTES
private static final int	BITS_OF_3_BYTES
private static final int	BITS_OF_4_BYTES
private final ByteBuffer	buffer
private static final int	BYTE_1_OF_INT
private static final int	BYTE_2_OF_INT
private static final int	BYTE_3_OF_INT
private static final int	BYTE_4_OF_INT
private static final int	BYTE_MASK
private static final long	INTEGER_MASK
private long	position

Constructor Summary

Constructors

Constructor	Description
BitBuffer(ByteBuffer writeBuffer)

Method Summary

Modifier and Type	Method	Description
int	bitbuffer()
(package private) void	close()
int	missingBitsInCurrentByte()
void	movePosition(int i)
void	putByte(byte byteToAdd)
void	putByte(byte byteToAdd, int bits)
void	putInt(int i)	write out int value to the next 4 bytes of the buffer
void	putInt(int i, int bits)
void	putLong(long l, int bits)

Methods inherited from class Object

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

Field Details

BITS_OF_4_BYTES

private static final int BITS_OF_4_BYTES

See Also:

• Constant Field Values

BYTE_MASK

private static final int BYTE_MASK

See Also:

• Constant Field Values

INTEGER_MASK

private static final long INTEGER_MASK

See Also:

• Constant Field Values

BITS_OF_1_BYTE

private static final int BITS_OF_1_BYTE

See Also:

• Constant Field Values

BITS_OF_2_BYTES

private static final int BITS_OF_2_BYTES

See Also:

• Constant Field Values

BITS_OF_3_BYTES

private static final int BITS_OF_3_BYTES

See Also:

• Constant Field Values

BYTE_1_OF_INT

private static final int BYTE_1_OF_INT

See Also:

• Constant Field Values

BYTE_2_OF_INT

private static final int BYTE_2_OF_INT

See Also:

• Constant Field Values

BYTE_3_OF_INT

private static final int BYTE_3_OF_INT

See Also:

• Constant Field Values

BYTE_4_OF_INT

private static final int BYTE_4_OF_INT

See Also:

• Constant Field Values

buffer

private final ByteBuffer buffer

position

private long position

Constructor Details

BitBuffer

public BitBuffer(ByteBuffer writeBuffer)

Method Details

bitbuffer

public int bitbuffer()

close

void close()

missingBitsInCurrentByte

public int missingBitsInCurrentByte()

movePosition

public void movePosition(int i)

putByte

public void putByte(byte byteToAdd)

putByte

public void putByte(byte byteToAdd,
 int bits)

putInt

public void putInt(int i)

write out int value to the next 4 bytes of the buffer

Parameters:

i - integer to write

putInt

public void putInt(int i,
 int bits)

putLong

public void putLong(long l,
 int bits)