Package io.usethesource.capsule.util

Class BitmapUtils

java.lang.Object

io.usethesource.capsule.util.BitmapUtils

public final class BitmapUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private static boolean	USE_SELF_WRITTEN_POPULATION_COUNT
private static boolean	USE_SELF_WRITTEN_POPULATION_COUNT_CHECK

Constructor Summary

Constructors

Constructor	Description
BitmapUtils()

Method Summary

Modifier and Type	Method	Description
static long	filter(long bitmap, int pattern)
static long	filter00(long bitmap)
static long	filter01(long bitmap)
static long	filter10(long bitmap)
static long	filter11(long bitmap)
static int	index(long bitmap, int pattern, long bitpos)
static int	index01(long bitmap, long bitpos)
static int	index10(long bitmap, long bitpos)
static int	index11(long bitmap, long bitpos)
static boolean	isBitInBitmap(byte bitmap, byte bitpos)
static boolean	isBitInBitmap(int bitmap, int bitpos)
static long	populationCountPattern00(long v)
static long	populationCountPattern01(long v)
static long	populationCountPattern10(long v)
static long	populationCountPattern11(long v)

Methods inherited from class java.lang.Object

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

Field Detail

USE_SELF_WRITTEN_POPULATION_COUNT

private static final boolean USE_SELF_WRITTEN_POPULATION_COUNT

See Also:

Constant Field Values

USE_SELF_WRITTEN_POPULATION_COUNT_CHECK

private static final boolean USE_SELF_WRITTEN_POPULATION_COUNT_CHECK

See Also:

Constant Field Values

Constructor Detail

BitmapUtils

public BitmapUtils()

Method Detail

filter00

public static final long filter00(long bitmap)

filter01

public static final long filter01(long bitmap)

filter10

public static final long filter10(long bitmap)

filter11

public static final long filter11(long bitmap)

filter

public static final long filter(long bitmap,
                                int pattern)

index

public static final int index(long bitmap,
                              int pattern,
                              long bitpos)

index01

public static final int index01(long bitmap,
                                long bitpos)

index10

public static final int index10(long bitmap,
                                long bitpos)

index11

public static final int index11(long bitmap,
                                long bitpos)

populationCountPattern00

public static final long populationCountPattern00(long v)

populationCountPattern01

public static final long populationCountPattern01(long v)

populationCountPattern10

public static final long populationCountPattern10(long v)

populationCountPattern11

public static final long populationCountPattern11(long v)

isBitInBitmap

public static boolean isBitInBitmap(byte bitmap,
                                    byte bitpos)

isBitInBitmap

public static boolean isBitInBitmap(int bitmap,
                                    int bitpos)