Files
easy7zip/CPP/7zip/Common/LSBFDecoder.cpp
Igor Pavlov d9666cf046 4.44 beta
2016-05-28 00:15:49 +01:00

28 lines
472 B
C++
Executable File

// Stream/LSBFDecoder.cpp
#include "StdAfx.h"
#include "LSBFDecoder.h"
namespace NStream {
namespace NLSBF {
Byte kInvertTable[256];
class CInverterTableInitializer
{
public:
CInverterTableInitializer()
{
for (int i = 0; i < 256; i++)
{
int x = ((i & 0x55) << 1) | ((i & 0xAA) >> 1);
x = ((x & 0x33) << 2) | ((x & 0xCC) >> 2);
kInvertTable[i] = (Byte)(((x & 0x0F) << 4) | ((x & 0xF0) >> 4));
}
}
} g_InverterTableInitializer;
}}