3.13

7zip/Compress/LZ/LZOutWindow.cpp

@@ -0,0 +1,83 @@
+// LZOutWindow.cpp
+
+#include "StdAfx.h"
+
+#include "LZOutWindow.h"
+
+void CLZOutWindow::Create(UINT32 windowSize)
+{
+  _pos = 0;
+  _streamPos = 0;
+  UINT32 newBlockSize = windowSize;
+  const UINT32 kMinBlockSize = 1;
+  if (newBlockSize < kMinBlockSize)
+    newBlockSize = kMinBlockSize;
+  if (_buffer != 0 && _windowSize == newBlockSize)
+    return;
+  delete []_buffer;
+  _buffer = 0;
+  _windowSize = newBlockSize;
+  _buffer = new BYTE[_windowSize];
+}
+
+CLZOutWindow::~CLZOutWindow()
+{
+  // ReleaseStream();
+  delete []_buffer;
+}
+
+/*
+void CLZOutWindow::SetWindowSize(UINT32 windowSize)
+{
+  _windowSize = windowSize;
+}
+*/
+
+void CLZOutWindow::Init(ISequentialOutStream *stream, bool solid)
+{
+  // ReleaseStream();
+  _stream = stream;
+  // _stream->AddRef();
+
+  if(!solid)
+  {
+    _streamPos = 0;
+    _pos = 0;
+  }
+}
+
+/*
+void CLZOutWindow::ReleaseStream()
+{
+  if(_stream != 0)
+  {
+    // Flush(); // Test it
+    _stream->Release();
+    _stream = 0;
+  }
+}
+*/
+
+void CLZOutWindow::FlushWithCheck()
+{
+  HRESULT result = Flush();
+  if (result != S_OK)
+    throw CLZOutWindowException(result);
+}
+
+HRESULT CLZOutWindow::Flush()
+{
+  UINT32 size = _pos - _streamPos;
+  if(size == 0)
+    return S_OK;
+  UINT32 processedSize;
+  HRESULT result = _stream->Write(_buffer + _streamPos, size, &processedSize);
+  if (result != S_OK)
+    return result;
+  if (size != processedSize)
+    return E_FAIL;
+  if (_pos >= _windowSize)
+    _pos = 0;
+  _streamPos = _pos;
+  return S_OK;
+}