diff options
| author | Arttu Tarkiainen <arttu.tarkiainen@qt.io> | 2022-04-06 13:33:38 +0300 |
|---|---|---|
| committer | Arttu Tarkiainen <arttu.tarkiainen@qt.io> | 2022-04-13 11:32:09 +0300 |
| commit | 96ade47c182bf37a2efca2aa62922e54e5ff1660 (patch) | |
| tree | 93ceee6c6f8984f563f3dfe83e56f98b66b40f3a /src/libs/3rdparty/7zip/win/C/LzHash.h | |
| parent | 2d5f0ffaf1278516bbd74e3b60f9849f4c51cffa (diff) | |
Move LZMA SDK to 3rdparty subdirectory
Also add attribution document.
Task-number: QTIFW-2336
Change-Id: I91546bc6c3ace244e4b546b945f40b7d204f7463
Reviewed-by: Katja Marttila <katja.marttila@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Diffstat (limited to 'src/libs/3rdparty/7zip/win/C/LzHash.h')
| -rw-r--r-- | src/libs/3rdparty/7zip/win/C/LzHash.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/libs/3rdparty/7zip/win/C/LzHash.h b/src/libs/3rdparty/7zip/win/C/LzHash.h new file mode 100644 index 000000000..f3e89966c --- /dev/null +++ b/src/libs/3rdparty/7zip/win/C/LzHash.h @@ -0,0 +1,54 @@ +/* LzHash.h -- HASH functions for LZ algorithms +2009-02-07 : Igor Pavlov : Public domain */ + +#ifndef __LZ_HASH_H +#define __LZ_HASH_H + +#define kHash2Size (1 << 10) +#define kHash3Size (1 << 16) +#define kHash4Size (1 << 20) + +#define kFix3HashSize (kHash2Size) +#define kFix4HashSize (kHash2Size + kHash3Size) +#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size) + +#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8); + +#define HASH3_CALC { \ + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ + hash2Value = temp & (kHash2Size - 1); \ + hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; } + +#define HASH4_CALC { \ + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ + hash2Value = temp & (kHash2Size - 1); \ + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ + hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; } + +#define HASH5_CALC { \ + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ + hash2Value = temp & (kHash2Size - 1); \ + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ + hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \ + hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \ + hash4Value &= (kHash4Size - 1); } + +/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */ +#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF; + + +#define MT_HASH2_CALC \ + hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1); + +#define MT_HASH3_CALC { \ + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ + hash2Value = temp & (kHash2Size - 1); \ + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); } + +#define MT_HASH4_CALC { \ + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ + hash2Value = temp & (kHash2Size - 1); \ + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ + hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); } + +#endif |