other-licenses/7zstub/src/7zip/Common/LSBFEncoder.cpp@6474c204b198 (annotated)
other-licenses/7zstub/src/7zip/Common/LSBFEncoder.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // LSBFEncoder.cpp |
| michael@0 | 2 | |
| michael@0 | 3 | #include "StdAfx.h" |
| michael@0 | 4 | |
| michael@0 | 5 | #include "LSBFEncoder.h" |
| michael@0 | 6 | #include "Common/Defs.h" |
| michael@0 | 7 | |
| michael@0 | 8 | namespace NStream { |
| michael@0 | 9 | namespace NLSBF { |
| michael@0 | 10 | |
| michael@0 | 11 | void CEncoder::WriteBits(UInt32 value, int numBits) |
| michael@0 | 12 | { |
| michael@0 | 13 | while(numBits > 0) |
| michael@0 | 14 | { |
| michael@0 | 15 | if (numBits < m_BitPos) |
| michael@0 | 16 | { |
| michael@0 | 17 | m_CurByte |= (value & ((1 << numBits) - 1)) << (8 - m_BitPos); |
| michael@0 | 18 | m_BitPos -= numBits; |
| michael@0 | 19 | return; |
| michael@0 | 20 | } |
| michael@0 | 21 | numBits -= m_BitPos; |
| michael@0 | 22 | m_Stream.WriteByte((Byte)(m_CurByte | (value << (8 - m_BitPos)))); |
| michael@0 | 23 | value >>= m_BitPos; |
| michael@0 | 24 | m_BitPos = 8; |
| michael@0 | 25 | m_CurByte = 0; |
| michael@0 | 26 | } |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | }} |
