diff options
Diffstat (limited to 'Build/source/utils/lzma/src/sdk/7zip/Compress/LZ/LZOutWindow.h')
-rw-r--r-- | Build/source/utils/lzma/src/sdk/7zip/Compress/LZ/LZOutWindow.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/Build/source/utils/lzma/src/sdk/7zip/Compress/LZ/LZOutWindow.h b/Build/source/utils/lzma/src/sdk/7zip/Compress/LZ/LZOutWindow.h new file mode 100644 index 00000000000..027f20706f9 --- /dev/null +++ b/Build/source/utils/lzma/src/sdk/7zip/Compress/LZ/LZOutWindow.h @@ -0,0 +1,64 @@ +// LZOutWindow.h + +#ifndef __LZ_OUT_WINDOW_H +#define __LZ_OUT_WINDOW_H + +#include "../../IStream.h" +#include "../../Common/OutBuffer.h" + +/* +#ifndef _NO_EXCEPTIONS +class CLZOutWindowException +{ +public: + HRESULT ErrorCode; + CLZOutWindowException(HRESULT errorCode): ErrorCode(errorCode) {} +}; +#endif +*/ +typedef COutBufferException CLZOutWindowException; + +class CLZOutWindow: public COutBuffer +{ +public: + void Init(bool solid = false); + + // distance >= 0, len > 0, + bool CopyBlock(UInt32 distance, UInt32 len) + { + UInt32 pos = _pos - distance - 1; + if (distance >= _pos) + { + if (!_overDict || distance >= _bufferSize) + return false; + pos += _bufferSize; + } + do + { + if (pos == _bufferSize) + pos = 0; + _buffer[_pos++] = _buffer[pos++]; + if (_pos == _limitPos) + FlushWithCheck(); + } + while(--len != 0); + return true; + } + + void PutByte(Byte b) + { + _buffer[_pos++] = b; + if (_pos == _limitPos) + FlushWithCheck(); + } + + Byte GetByte(UInt32 distance) const + { + UInt32 pos = _pos - distance - 1; + if (pos >= _bufferSize) + pos += _bufferSize; + return _buffer[pos]; + } +}; + +#endif |