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4.27 beta

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This commit is contained in:
Igor Pavlov
2005-09-21 00:00:00 +00:00
committed by Kornel Lesiński
parent 31e7b924e8
commit d66cf2fcf3
393 changed files with 17345 additions and 4743 deletions
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47
7zip/Compress/LZ/LZOutWindow.h
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@@ -4,6 +4,7 @@
#define __LZ_OUT_WINDOW_H
#include "../../IStream.h"
#include "../../Common/OutBuffer.h"
#ifndef _NO_EXCEPTIONS
class CLZOutWindowException
@@ -14,57 +15,47 @@ public:
};
#endif
class CLZOutWindow
class CLZOutWindow: public COutBuffer
{
Byte *_buffer;
UInt32 _pos;
UInt32 _windowSize;
UInt32 _streamPos;
ISequentialOutStream *_stream;
bool _overDict;
void FlushWithCheck();
public:
#ifdef _NO_EXCEPTIONS
HRESULT ErrorCode;
#endif
void Free();
CLZOutWindow(): _buffer(0), _stream(0) {}
~CLZOutWindow() { Free(); ReleaseStream(); }
bool Create(UInt32 windowSize);
void SetStream(ISequentialOutStream *stream);
void Init(bool solid = false);
HRESULT Flush();
void ReleaseStream();
void CopyBlock(UInt32 distance, UInt32 len)
// distance >= 0, len > 0,
bool CopyBlock(UInt32 distance, UInt32 len)
{
UInt32 pos = _pos - distance - 1;
if (pos >= _windowSize)
pos += _windowSize;
for(; len > 0; len--)
if (pos >= _bufferSize)
{
if (pos >= _windowSize)
if (!_overDict)
return false;
pos += _bufferSize;
}
do
{
if (pos == _bufferSize)
pos = 0;
_buffer[_pos++] = _buffer[pos++];
if (_pos >= _windowSize)
if (_pos == _limitPos)
FlushWithCheck();
// PutOneByte(GetOneByte(distance));
}
while(--len != 0);
return true;
}
void PutByte(Byte b)
{
_buffer[_pos++] = b;
if (_pos >= _windowSize)
if (_pos == _limitPos)
FlushWithCheck();
}
Byte GetByte(UInt32 distance) const
{
UInt32 pos = _pos - distance - 1;
if (pos >= _windowSize)
pos += _windowSize;
if (pos >= _bufferSize)
pos += _bufferSize;
return _buffer[pos];
}
};