Class DeflaterHuffman

This is the DeflaterHuffman class.

This class is not thread safe. This is inherent in the API, due to the split of Deflate and SetInput.

author of the original java version : Jochen Hoenicke

Inheritance

System.Object

DeflaterHuffman

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: ICSharpCode.SharpZipLib.Zip.Compression

Assembly: ICSharpCode.SharpZipLib.dll

Syntax

public class DeflaterHuffman

Constructors

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DeflaterHuffman(DeflaterPending)

Construct instance with pending buffer

Declaration

public DeflaterHuffman(DeflaterPending pending)

Parameters

Type	Name	Description
DeflaterPending	pending	Pending buffer to use

Fields

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pending

Pending buffer to use

Declaration

public DeflaterPending pending

Field Value

Type	Description
DeflaterPending

Methods

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BitReverse(Int32)

Reverse the bits of a 16 bit value.

Declaration

public static short BitReverse(int toReverse)

Parameters

Type	Name	Description
System.Int32	toReverse	Value to reverse bits

Returns

Type	Description
System.Int16	Value with bits reversed

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CompressBlock()

Compress current buffer writing data to pending buffer

Declaration

public void CompressBlock()

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FlushBlock(Byte[], Int32, Int32, Boolean)

Flush block to output with compression

Declaration

public void FlushBlock(byte[] stored, int storedOffset, int storedLength, bool lastBlock)

Parameters

Type	Name	Description
System.Byte[]	stored	Data to flush
System.Int32	storedOffset	Index of first byte to flush
System.Int32	storedLength	Count of bytes to flush
System.Boolean	lastBlock	True if this is the last block

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FlushStoredBlock(Byte[], Int32, Int32, Boolean)

Flush block to output with no compression

Declaration

public void FlushStoredBlock(byte[] stored, int storedOffset, int storedLength, bool lastBlock)

Parameters

Type	Name	Description
System.Byte[]	stored	Data to write
System.Int32	storedOffset	Index of first byte to write
System.Int32	storedLength	Count of bytes to write
System.Boolean	lastBlock	True if this is the last block

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IsFull()

Get value indicating if internal buffer is full

Declaration

public bool IsFull()

Returns

Type	Description
System.Boolean	true if buffer is full

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Reset()

Reset internal state

Declaration

public void Reset()

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SendAllTrees(Int32)

Write all trees to pending buffer

Declaration

public void SendAllTrees(int blTreeCodes)

Parameters

Type	Name	Description
System.Int32	blTreeCodes	The number/rank of treecodes to send.

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TallyDist(Int32, Int32)

Add distance code and length to literal and distance trees

Declaration

public bool TallyDist(int distance, int length)

Parameters

Type	Name	Description
System.Int32	distance	Distance code
System.Int32	length	Length

Returns

Type	Description
System.Boolean	Value indicating if internal buffer is full

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TallyLit(Int32)

Add literal to buffer

Declaration

public bool TallyLit(int literal)

Parameters

Type	Name	Description
System.Int32	literal	Literal value to add to buffer.

Returns

Type	Description
System.Boolean	Value indicating internal buffer is full