~ubuntu-branches/ubuntu/trusty/advancecomp/trusty

« back to all changes in this revision

Viewing changes to 7z/AriBitCoder.cc

• browse files at revision 1
• compare with another revision
• download diff
• download tarball
• view history from revision 1

Show diffs side-by-side

added

removed

7z/AriBitCoder.cc

 

1

#include "AriBitCoder.h"

 

2

#include "AriPrice.h"

 

3

 

 

4

#include <cmath>

 

5

 

 

6

namespace NCompression {

 

7

namespace NArithmetic {

 

8

 

 

9

static const double kDummyMultMid = (1.0 / kBitPrice) / 2;

 

10

 

 

11

CPriceTables::CPriceTables()

 

12

{

 

13

  double aLn2 = log(2);

 

14

  double aLnAll = log(kBitModelTotal >> kNumMoveReducingBits);

 

15

  for(UINT32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++)

 

16

    m_StatePrices[i] = UINT32((fabs(aLnAll - log(i)) / aLn2 + kDummyMultMid) * kBitPrice);

 

17

}

 

18

 

 

19

CPriceTables g_PriceTables;

 

20

 

 

21

}}

• Older »

Loggerhead is a web-based interface for Breezy
Version: 2.0.1