Class CRCedChunk

java.lang.Object

com.biglybt.core.util.png.Chunk

com.biglybt.core.util.png.CRCedChunk

Direct Known Subclasses:

IDATChunk, IENDChunk, IHDRChunk

public abstract class CRCedChunk
extends Chunk

Field Summary

Fields

Modifier and Type	Field	Description
private static final long[]	crc_table
private static boolean	crc_table_computed
private byte[]	type

Constructor Summary

Constructors

Constructor	Description
CRCedChunk(byte[] type)

Method Summary

Modifier and Type	Method	Description
private static long	crc(ByteBuffer buf)
byte[]	getChunkPayload()
abstract byte[]	getContentPayload()
private static void	make_crc_table()
private static long	update_crc(long crc, ByteBuffer buf)

Methods inherited from class Object

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

Field Details

type

private byte[] type

crc_table

private static final long[] crc_table

crc_table_computed

private static boolean crc_table_computed

Constructor Details

CRCedChunk

public CRCedChunk(byte[] type)
           throws InvalidParameterException

Throws:

InvalidParameterException

Method Details

getChunkPayload

public byte[] getChunkPayload()

Specified by:

getChunkPayload in class Chunk

getContentPayload

public abstract byte[] getContentPayload()

make_crc_table

private static void make_crc_table()

update_crc

private static long update_crc(long crc,
 ByteBuffer buf)

crc

private static long crc(ByteBuffer buf)