diff options
| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-05-01 00:28:19 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-05-01 00:28:19 +0000 |
| commit | 306bf4e22a1139b47357b9e3fd70cfc1c0f05f9c (patch) | |
| tree | 0a0a6de2834c2f2d82c8f369e8aac13e372d6613 /IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzHash.h | |
| parent | 33d487d463ed3e42f53e9ebb52d8da567dc75f4b (diff) | |
| download | edk2-platforms-306bf4e22a1139b47357b9e3fd70cfc1c0f05f9c.tar.xz | |
Add LzmaCustomDecompressLib based on the LZMA SDK 4.65 which was
placed in the public domain on 2009-02-03. The LZMA SDK
4.65 was released at the http://www.7-zip.org/sdk.html
website.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8227 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzHash.h')
| -rw-r--r-- | IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzHash.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzHash.h b/IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzHash.h new file mode 100644 index 0000000000..c923417501 --- /dev/null +++ b/IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzHash.h @@ -0,0 +1,54 @@ +/* LzHash.h -- HASH functions for LZ algorithms
+2008-10-04 : Igor Pavlov : Public domain */
+
+#ifndef __LZHASH_H
+#define __LZHASH_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
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