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This commit is contained in:
Igor Pavlov
2023-12-22 17:17:05 +00:00
committed by Kornel
parent ec44a8a070
commit a36c48cece
954 changed files with 42199 additions and 25482 deletions
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14
CPP/7zip/Compress/BitmDecoder.h
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@@ -1,7 +1,7 @@
// BitmDecoder.h -- the Most Significant Bit of byte is First
#ifndef __BITM_DECODER_H
#define __BITM_DECODER_H
#ifndef ZIP7_INC_BITM_DECODER_H
#define ZIP7_INC_BITM_DECODER_H
#include "../IStream.h"
@@ -47,28 +47,28 @@ public:
return (_stream.NumExtraBytes > 4);
}
MY_FORCE_INLINE
Z7_FORCE_INLINE
void Normalize()
{
for (; _bitPos >= 8; _bitPos -= 8)
_value = (_value << 8) | _stream.ReadByte();
}
MY_FORCE_INLINE
Z7_FORCE_INLINE
UInt32 GetValue(unsigned numBits) const
{
// return (_value << _bitPos) >> (kNumBigValueBits - numBits);
return ((_value >> (8 - _bitPos)) & kMask) >> (kNumValueBits - numBits);
}
MY_FORCE_INLINE
Z7_FORCE_INLINE
void MovePos(unsigned numBits)
{
_bitPos += numBits;
Normalize();
}
MY_FORCE_INLINE
Z7_FORCE_INLINE
UInt32 ReadBits(unsigned numBits)
{
UInt32 res = GetValue(numBits);
@@ -91,7 +91,7 @@ public:
void AlignToByte() { MovePos((kNumBigValueBits - _bitPos) & 7); }
MY_FORCE_INLINE
Z7_FORCE_INLINE
UInt32 ReadAlignBits() { return ReadBits((kNumBigValueBits - _bitPos) & 7); }
};