ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree Class Reference

Collaboration diagram for ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree:

Public Member Functions
	Tree (DeflaterHuffman dh, int elems, int minCodes, int maxLength)
void	Reset ()
	Resets the internal state of the tree.
void	WriteSymbol (int code)
void	CheckEmpty ()
	Check that all frequencies are zero.
void	SetStaticCodes (short[] staticCodes, byte[] staticLengths)
	Set static codes and length.
void	BuildCodes ()
	Build dynamic codes and lengths.
void	BuildTree ()
int	GetEncodedLength ()
	Get encoded length.
void	CalcBLFreq (Tree blTree)
	Scan a literal or distance tree to determine the frequencies of the codes in the bit length tree.
void	WriteTree (Tree blTree)
	Write tree values.

Public Attributes
short[]	freqs
byte[]	length
int	minNumCodes
int	numCodes

Private Member Functions
void	BuildLength (int[] childs)

Private Attributes
short[]	codes
int[]	bl_counts
int	maxLength
DeflaterHuffman	dh

Constructor & Destructor Documentation

Tree()

ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.Tree	(	DeflaterHuffman	dh,
		int	elems,
		int	minCodes,
		int	maxLength )

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Member Function Documentation

BuildCodes()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.BuildCodes

(

)

Build dynamic codes and lengths.

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BuildLength()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.BuildLength ( int[] childs )

private

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BuildTree()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.BuildTree

(

)

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CalcBLFreq()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.CalcBLFreq

(

Tree

blTree

)

Scan a literal or distance tree to determine the frequencies of the codes in the bit length tree.

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CheckEmpty()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.CheckEmpty

(

)

Check that all frequencies are zero.

Exceptions

SharpZipBaseException

At least one frequency is non-zero

GetEncodedLength()

int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.GetEncodedLength

(

)

Get encoded length.

Returns

Encoded length, the sum of frequencies * lengths

Reset()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.Reset

(

)

Resets the internal state of the tree.

SetStaticCodes()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.SetStaticCodes	(	short[]	staticCodes,
		byte[]	staticLengths )

Set static codes and length.

Parameters

staticCodes	new codes
staticLengths	length for new codes

WriteSymbol()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.WriteSymbol

(

int

code

)

WriteTree()

void ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.WriteTree

(

Tree

blTree

)

Write tree values.

Parameters

blTree

Tree to write

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Member Data Documentation

bl_counts

int [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.bl_counts

private

codes

short [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.codes

private

dh

DeflaterHuffman ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.dh

private

freqs

short [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.freqs

length

byte [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.length

maxLength

int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.maxLength

private

minNumCodes

int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.minNumCodes

numCodes

int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterHuffman.Tree.numCodes

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The documentation for this class was generated from the following file:

• ICSharpCode.SharpZLib/Zip/Compression/DeflaterHuffman.cs