mirror of
https://github.com/Xevion/easy7zip.git
synced 2025-12-08 06:06:59 -06:00
73 lines
1.4 KiB
C++
Executable File
73 lines
1.4 KiB
C++
Executable File
// LZOutWindow.h
|
|
|
|
#ifndef __LZ_OUT_WINDOW_H
|
|
#define __LZ_OUT_WINDOW_H
|
|
|
|
#include "../../IStream.h"
|
|
|
|
#ifndef _NO_EXCEPTIONS
|
|
class CLZOutWindowException
|
|
{
|
|
public:
|
|
HRESULT ErrorCode;
|
|
CLZOutWindowException(HRESULT errorCode): ErrorCode(errorCode) {}
|
|
};
|
|
#endif
|
|
|
|
class CLZOutWindow
|
|
{
|
|
Byte *_buffer;
|
|
UInt32 _pos;
|
|
UInt32 _windowSize;
|
|
UInt32 _streamPos;
|
|
ISequentialOutStream *_stream;
|
|
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)
|
|
{
|
|
UInt32 pos = _pos - distance - 1;
|
|
if (pos >= _windowSize)
|
|
pos += _windowSize;
|
|
for(; len > 0; len--)
|
|
{
|
|
if (pos >= _windowSize)
|
|
pos = 0;
|
|
_buffer[_pos++] = _buffer[pos++];
|
|
if (_pos >= _windowSize)
|
|
FlushWithCheck();
|
|
// PutOneByte(GetOneByte(distance));
|
|
}
|
|
}
|
|
|
|
void PutByte(Byte b)
|
|
{
|
|
_buffer[_pos++] = b;
|
|
if (_pos >= _windowSize)
|
|
FlushWithCheck();
|
|
}
|
|
|
|
Byte GetByte(UInt32 distance) const
|
|
{
|
|
UInt32 pos = _pos - distance - 1;
|
|
if (pos >= _windowSize)
|
|
pos += _windowSize;
|
|
return _buffer[pos];
|
|
}
|
|
};
|
|
|
|
#endif
|