org.scion.jpan.internal

Class ByteUtil

java.lang.Object

org.scion.jpan.internal.ByteUtil

public class ByteUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ByteUtil.MutLong Mutable long integer.

Constructor Summary

Constructors

Constructor and Description
ByteUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	readBoolean(int input, int bitOffset)
static int	readInt(int input, int bitOffset, int bitCount) Reads some bits from an integer and returns them as another integer, shifted right such that the least significant extracted bit becomes the least significant bit in the output.
static long	readLong(long input, int bitOffset, int bitCount)
static byte	toByte(int code)
static int	toInt(long code)
static short	toShort(long code)
static int	toUnsigned(byte code)
static int	toUnsigned(short code)
static int	write16(int dst, int bitOffset, int value)
static int	writeBool(int dst, int bitOffset, boolean value)
static long	writeBool(long dst, int bitOffset, boolean value)
static int	writeInt(int dst, int bitOffset, int bitLength, int value)
static long	writeInt(long dst, int bitOffset, int bitLength, int value)
static long	writeLong(long dst, int bitOffset, int bitLength, long value)

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteUtil

public ByteUtil()

Method Detail

readInt

public static int readInt(int input,
                          int bitOffset,
                          int bitCount)

Reads some bits from an integer and returns them as another integer, shifted right such that the least significant extracted bit becomes the least significant bit in the output.

Parameters:

input - input

bitOffset - First bit to read. 0 is the most significant bit, 31 is the least significant bit

bitCount - number of bits to read

Returns:

extracted bits as int.

readLong

public static long readLong(long input,
                            int bitOffset,
                            int bitCount)

readBoolean

public static boolean readBoolean(int input,
                                  int bitOffset)

writeInt

public static int writeInt(int dst,
                           int bitOffset,
                           int bitLength,
                           int value)

write16

public static int write16(int dst,
                          int bitOffset,
                          int value)

writeBool

public static int writeBool(int dst,
                            int bitOffset,
                            boolean value)

writeInt

public static long writeInt(long dst,
                            int bitOffset,
                            int bitLength,
                            int value)

writeLong

public static long writeLong(long dst,
                             int bitOffset,
                             int bitLength,
                             long value)

writeBool

public static long writeBool(long dst,
                             int bitOffset,
                             boolean value)

toByte

public static byte toByte(int code)

toShort

public static short toShort(long code)

toInt

public static int toInt(long code)

toUnsigned

public static int toUnsigned(byte code)

toUnsigned

public static int toUnsigned(short code)