java.lang.Object
- nom.tam.fits.compression.algorithm.rice.BitBuffer

public class BitBuffer
extends java.lang.Object

A bit wise reader writer around a bytebuffer.

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`BITS_OF_1_BYTE`
`private static int`	`BITS_OF_2_BYTES`
`private static int`	`BITS_OF_3_BYTES`
`private static int`	`BITS_OF_4_BYTES`
`private java.nio.ByteBuffer`	`buffer`
`private static int`	`BYTE_1_OF_INT`
`private static int`	`BYTE_2_OF_INT`
`private static int`	`BYTE_3_OF_INT`
`private static int`	`BYTE_4_OF_INT`
`private static int`	`BYTE_MASK`
`private static long`	`INTEGER_MASK`
`private long`	`position`

Constructor Summary

Constructors
Constructor Description

BitBuffer(java.nio.ByteBuffer writeBuffer)

Method Summary

All Methods Instance Methods Concrete Methods
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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- 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 java.nio.ByteBuffer buffer
```
- position
```
private long position
```

Constructor Detail

BitBuffer

public BitBuffer(java.nio.ByteBuffer writeBuffer)

Method Detail

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)

Class BitBuffer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

BITS_OF_4_BYTES

BYTE_MASK

INTEGER_MASK

BITS_OF_1_BYTE

BITS_OF_2_BYTES

BITS_OF_3_BYTES

BYTE_1_OF_INT

BYTE_2_OF_INT

BYTE_3_OF_INT

BYTE_4_OF_INT

buffer

position

Constructor Detail

BitBuffer

Method Detail

bitbuffer

close

missingBitsInCurrentByte

movePosition

putByte

putByte

putInt

putInt

putLong