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#ifndef __DEFLATE_CONST_H
#define __DEFLATE_CONST_H
namespace NDeflate {
const UINT32 kDistTableSize = 30;
const UINT32 kHistorySize = 0x8000;
const UINT32 kNumLenCombinations = 256;
const UINT32 kNumHuffmanBits = 15;
const UINT32 kLenTableSize = 29;
const UINT32 kStaticDistTableSize = 32;
const UINT32 kStaticLenTableSize = 31;
const UINT32 kReadTableNumber = 0x100;
const UINT32 kMatchNumber = kReadTableNumber + 1;
const UINT32 kMainTableSize = kMatchNumber + kLenTableSize; //298;
const UINT32 kStaticMainTableSize = kMatchNumber + kStaticLenTableSize; //298;
const UINT32 kDistTableStart = kMainTableSize;
const UINT32 kHeapTablesSizesSum = kMainTableSize + kDistTableSize;
const UINT32 kLevelTableSize = 19;
const UINT32 kMaxTableSize = kHeapTablesSizesSum; // test it
const UINT32 kStaticMaxTableSize = kStaticMainTableSize + kStaticDistTableSize;
const UINT32 kTableDirectLevels = 16;
const UINT32 kTableLevelRepNumber = kTableDirectLevels;
const UINT32 kTableLevel0Number = kTableLevelRepNumber + 1;
const UINT32 kTableLevel0Number2 = kTableLevel0Number + 1;
const UINT32 kLevelMask = 0xF;
const BYTE kLenStart[kLenTableSize] = {0,1,2,3,4,5,6,7,8,10,12,14,16,20,24,28,32,40,48,56,64,80,96,112,128,160,192,224, 255};
const BYTE kLenDirectBits[kLenTableSize] = {0,0,0,0,0,0,0,0,1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
const UINT32 kDistStart[kDistTableSize] = {0,1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,256,384,512,768,1024,1536,2048,3072,4096,6144,8192,12288,16384,24576};
const BYTE kDistDirectBits[kDistTableSize] = {0,0,0,0,1,1,2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
const BYTE kLevelDirectBits[kLevelTableSize] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 3, 7};
const BYTE kCodeLengthAlphabetOrder[kLevelTableSize] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
const UINT32 kMatchMinLen = 3;
const UINT32 kMatchMaxLen = kNumLenCombinations + kMatchMinLen - 1; // 255 + 2; test it
const int kFinalBlockFieldSize = 1;
namespace NFinalBlockField
{
enum
{
kNotFinalBlock = 0,
kFinalBlock = 1
};
}
const int kBlockTypeFieldSize = 2;
namespace NBlockType
{
enum
{
kStored = 0,
kFixedHuffman = 1,
kDynamicHuffman = 2,
kReserved = 3
};
}
const UINT32 kDeflateNumberOfLengthCodesFieldSize = 5;
const UINT32 kDeflateNumberOfDistanceCodesFieldSize = 5;
const UINT32 kDeflateNumberOfLevelCodesFieldSize = 4;
const UINT32 kDeflateNumberOfLitLenCodesMin = 257;
const UINT32 kDeflateNumberOfDistanceCodesMin = 1;
const UINT32 kDeflateNumberOfLevelCodesMin = 4;
const UINT32 kDeflateLevelCodeFieldSize = 3;
const UINT32 kDeflateStoredBlockLengthFieldSizeSize = 16;
}
#endif
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