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ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants Class Reference

This class contains constants used for deflation. More...

Inheritance diagram for ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants:
Inheritance graph
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Static Public Attributes

const bool DEBUGGING = false
 Set to true to enable debugging.
const int STORED_BLOCK = 0
 Written to Zip file to identify a stored block.
const int STATIC_TREES = 1
 Identifies static tree in Zip file.
const int DYN_TREES = 2
 Identifies dynamic tree in Zip file.
const int PRESET_DICT = 0x20
 Header flag indicating a preset dictionary for deflation.
const int DEFAULT_MEM_LEVEL = 8
 Sets internal buffer sizes for Huffman encoding.
const int MAX_MATCH = 258
 Internal compression engine constant.
const int MIN_MATCH = 3
 Internal compression engine constant.
const int MAX_WBITS = 15
 Internal compression engine constant.
const int WSIZE = 1 << MAX_WBITS
 Internal compression engine constant.
const int WMASK = WSIZE - 1
 Internal compression engine constant.
const int HASH_BITS = DEFAULT_MEM_LEVEL + 7
 Internal compression engine constant.
const int HASH_SIZE = 1 << HASH_BITS
 Internal compression engine constant.
const int HASH_MASK = HASH_SIZE - 1
 Internal compression engine constant.
const int HASH_SHIFT = (HASH_BITS + MIN_MATCH - 1) / MIN_MATCH
 Internal compression engine constant.
const int MIN_LOOKAHEAD = MAX_MATCH + MIN_MATCH + 1
 Internal compression engine constant.
const int MAX_DIST = WSIZE - MIN_LOOKAHEAD
 Internal compression engine constant.
const int PENDING_BUF_SIZE = 1 << (DEFAULT_MEM_LEVEL + 8)
 Internal compression engine constant.
static int MAX_BLOCK_SIZE = Math.Min(65535, PENDING_BUF_SIZE - 5)
 Internal compression engine constant.
const int DEFLATE_STORED = 0
 Internal compression engine constant.
const int DEFLATE_FAST = 1
 Internal compression engine constant.
const int DEFLATE_SLOW = 2
 Internal compression engine constant.
static int[] GOOD_LENGTH = { 0, 4, 4, 4, 4, 8, 8, 8, 32, 32 }
 Internal compression engine constant.
static int[] MAX_LAZY = { 0, 4, 5, 6, 4, 16, 16, 32, 128, 258 }
 Internal compression engine constant.
static int[] NICE_LENGTH = { 0, 8, 16, 32, 16, 32, 128, 128, 258, 258 }
 Internal compression engine constant.
static int[] MAX_CHAIN = { 0, 4, 8, 32, 16, 32, 128, 256, 1024, 4096 }
 Internal compression engine constant.
static int[] COMPR_FUNC = { 0, 1, 1, 1, 1, 2, 2, 2, 2, 2 }
 Internal compression engine constant.

Detailed Description

This class contains constants used for deflation.

Member Data Documentation

◆ COMPR_FUNC

int [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.COMPR_FUNC = { 0, 1, 1, 1, 1, 2, 2, 2, 2, 2 }
static

Internal compression engine constant.

◆ DEBUGGING

const bool ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.DEBUGGING = false
static

Set to true to enable debugging.

◆ DEFAULT_MEM_LEVEL

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.DEFAULT_MEM_LEVEL = 8
static

Sets internal buffer sizes for Huffman encoding.

◆ DEFLATE_FAST

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.DEFLATE_FAST = 1
static

Internal compression engine constant.

◆ DEFLATE_SLOW

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.DEFLATE_SLOW = 2
static

Internal compression engine constant.

◆ DEFLATE_STORED

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.DEFLATE_STORED = 0
static

Internal compression engine constant.

◆ DYN_TREES

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.DYN_TREES = 2
static

Identifies dynamic tree in Zip file.

◆ GOOD_LENGTH

int [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.GOOD_LENGTH = { 0, 4, 4, 4, 4, 8, 8, 8, 32, 32 }
static

Internal compression engine constant.

◆ HASH_BITS

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.HASH_BITS = DEFAULT_MEM_LEVEL + 7
static

Internal compression engine constant.

◆ HASH_MASK

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.HASH_MASK = HASH_SIZE - 1
static

Internal compression engine constant.

◆ HASH_SHIFT

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.HASH_SHIFT = (HASH_BITS + MIN_MATCH - 1) / MIN_MATCH
static

Internal compression engine constant.

◆ HASH_SIZE

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.HASH_SIZE = 1 << HASH_BITS
static

Internal compression engine constant.

◆ MAX_BLOCK_SIZE

int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MAX_BLOCK_SIZE = Math.Min(65535, PENDING_BUF_SIZE - 5)
static

Internal compression engine constant.

◆ MAX_CHAIN

int [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MAX_CHAIN = { 0, 4, 8, 32, 16, 32, 128, 256, 1024, 4096 }
static

Internal compression engine constant.

◆ MAX_DIST

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MAX_DIST = WSIZE - MIN_LOOKAHEAD
static

Internal compression engine constant.

◆ MAX_LAZY

int [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MAX_LAZY = { 0, 4, 5, 6, 4, 16, 16, 32, 128, 258 }
static

Internal compression engine constant.

◆ MAX_MATCH

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MAX_MATCH = 258
static

Internal compression engine constant.

◆ MAX_WBITS

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MAX_WBITS = 15
static

Internal compression engine constant.

◆ MIN_LOOKAHEAD

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MIN_LOOKAHEAD = MAX_MATCH + MIN_MATCH + 1
static

Internal compression engine constant.

◆ MIN_MATCH

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.MIN_MATCH = 3
static

Internal compression engine constant.

◆ NICE_LENGTH

int [] ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.NICE_LENGTH = { 0, 8, 16, 32, 16, 32, 128, 128, 258, 258 }
static

Internal compression engine constant.

◆ PENDING_BUF_SIZE

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.PENDING_BUF_SIZE = 1 << (DEFAULT_MEM_LEVEL + 8)
static

Internal compression engine constant.

◆ PRESET_DICT

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.PRESET_DICT = 0x20
static

Header flag indicating a preset dictionary for deflation.

◆ STATIC_TREES

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.STATIC_TREES = 1
static

Identifies static tree in Zip file.

◆ STORED_BLOCK

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.STORED_BLOCK = 0
static

Written to Zip file to identify a stored block.

◆ WMASK

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.WMASK = WSIZE - 1
static

Internal compression engine constant.

◆ WSIZE

const int ICSharpCode.SharpZipLib.Zip.Compression.DeflaterConstants.WSIZE = 1 << MAX_WBITS
static

Internal compression engine constant.

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