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+ Fixed bug in opening SQP archives

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+ More efficient version of GetNearestPowerOfTwo
This commit is contained in:
Ladislav Zezula
2016-07-14 14:15:29 +02:00
parent 7597fe1702
commit f311254785
7 changed files with 24 additions and 24 deletions
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28
src/SBaseCommon.cpp
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@@ -257,20 +257,20 @@ DWORD HashStringLower(const char * szFileName, DWORD dwHashType)
// Returns the nearest higher power of two.
// If the value is already a power of two, returns the same value
//static DWORD GetNearestPowerOfTwo(DWORD dwValue)
//{
// dwValue --;
//
// dwValue |= dwValue >> 1;
// dwValue |= dwValue >> 2;
// dwValue |= dwValue >> 4;
// dwValue |= dwValue >> 8;
// dwValue |= dwValue >> 16;
//
// return dwValue + 1;
//}
DWORD GetNearestPowerOfTwo(DWORD dwFileCount)
{
dwFileCount --;
DWORD GetHashTableSizeForFileCount(DWORD dwFileCount)
dwFileCount |= dwFileCount >> 1;
dwFileCount |= dwFileCount >> 2;
dwFileCount |= dwFileCount >> 4;
dwFileCount |= dwFileCount >> 8;
dwFileCount |= dwFileCount >> 16;
return dwFileCount + 1;
}
/*
DWORD GetNearestPowerOfTwo(DWORD dwFileCount)
{
DWORD dwPowerOfTwo = HASH_TABLE_SIZE_MIN;
@@ -284,7 +284,7 @@ DWORD GetHashTableSizeForFileCount(DWORD dwFileCount)
dwPowerOfTwo <<= 1;
return dwPowerOfTwo;
}
*/
//-----------------------------------------------------------------------------
// Calculates a Jenkin's Encrypting and decrypting MPQ file data