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| author | Tomas Bzatek <tbzatek@users.sourceforge.net> | 2008-06-08 11:04:43 +0200 |
|---|---|---|
| committer | Tomas Bzatek <tbzatek@users.sourceforge.net> | 2008-06-08 11:04:43 +0200 |
| commit | 16f738ecee689c6feb2acb7e4ef4d9bb4144ae7d (patch) | |
| tree | 3d22f54f7298f81b18ed66d05a62fa8bfab359ab /zip/ZipArchive/DeflateCompressor.h | |
| download | tuxcmd-modules-0.6.36.tar.xz | |
Initial commitv0.6.36release-0.6.36-dev
Diffstat (limited to 'zip/ZipArchive/DeflateCompressor.h')
| -rw-r--r-- | zip/ZipArchive/DeflateCompressor.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/zip/ZipArchive/DeflateCompressor.h b/zip/ZipArchive/DeflateCompressor.h new file mode 100644 index 0000000..baa777d --- /dev/null +++ b/zip/ZipArchive/DeflateCompressor.h @@ -0,0 +1,148 @@ +////////////////////////////////////////////////////////////////////////////////
+// This source file is part of the ZipArchive library source distribution and
+// is Copyrighted 2000 - 2007 by Artpol Software - Tadeusz Dracz
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// For the licensing details refer to the License.txt file.
+//
+// Web Site: http://www.artpol-software.com
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+* \file DeflateCompressor.h
+* Includes the ZipArchiveLib::CDeflateCompressor class.
+*
+*/
+
+#if !defined(ZIPARCHIVE_DEFLATECOMPRESSOR_DOT_H)
+#define ZIPARCHIVE_DEFLATECOMPRESSOR_DOT_H
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include "ZipExport.h"
+#include "BaseLibCompressor.h"
+#include "ZipException.h"
+#include "zlib/zlib.h"
+
+namespace ZipArchiveLib
+{
+
+/**
+ Compresses and decompresses data using the Zlib library.
+*/
+class ZIP_API CDeflateCompressor : public CBaseLibCompressor
+{
+public:
+ /**
+ Represents options of the CDeflateCompressor.
+
+ \see
+ <a href="kb">0610231446|options</a>
+ \see
+ CZipArchive::SetCompressionOptions
+ */
+ struct ZIP_API COptions : CBaseLibCompressor::COptions
+ {
+ COptions()
+ {
+ m_bCheckLastBlock = true;
+ }
+
+ int GetType() const
+ {
+ return typeDeflate;
+ }
+
+ CZipCompressor::COptions* Clone() const
+ {
+ return new COptions(*this);
+ }
+
+ /**
+ Enables or disables checking, if the compressed data ends with an end-of-stream block.
+ This should be enabled to protect against malformed data.
+ \c true, if the checking of the last block should be enabled; \c false otherwise.
+ */
+ bool m_bCheckLastBlock;
+
+ };
+
+ /**
+ Initializes a new instance of the CDeflateCompressor class.
+
+ \param pStorage
+ The current storage object.
+ */
+ CDeflateCompressor(CZipStorage* pStorage);
+
+ bool CanProcess(WORD uMethod) {return uMethod == methodStore || uMethod == methodDeflate;}
+
+ void InitCompression(int iLevel, CZipFileHeader* pFile, CZipCryptograph* pCryptograph);
+ void InitDecompression(CZipFileHeader* pFile, CZipCryptograph* pCryptograph);
+
+ DWORD Decompress(void *pBuffer, DWORD uSize);
+ void Compress(const void *pBuffer, DWORD uSize);
+
+ void FinishCompression(bool bAfterException);
+ void FinishDecompression(bool bAfterException);
+
+
+ const CZipCompressor::COptions* GetOptions() const
+ {
+ return &m_options;
+ }
+
+ ~CDeflateCompressor()
+ {
+ }
+protected:
+ void UpdateOptions(const CZipCompressor::COptions* pOptions)
+ {
+ m_options = *(COptions*)pOptions;
+ }
+
+ int ConvertInternalError(int iErr) const
+ {
+ switch (iErr)
+ {
+ case Z_NEED_DICT:
+ return CZipException::needDict;
+ case Z_STREAM_END:
+ return CZipException::streamEnd;
+ case Z_ERRNO:
+ return CZipException::errNo;
+ case Z_STREAM_ERROR:
+ return CZipException::streamError;
+ case Z_DATA_ERROR:
+ return CZipException::dataError;
+ case Z_MEM_ERROR:
+ return CZipException::memError;
+ case Z_BUF_ERROR:
+ return CZipException::bufError;
+ case Z_VERSION_ERROR:
+ return CZipException::versionError;
+ default:
+ return CZipException::genericError;
+ }
+ }
+
+ bool IsCodeErrorOK(int iErr) const
+ {
+ return iErr == Z_OK || iErr == Z_NEED_DICT;
+ }
+
+private:
+ COptions m_options;
+ zarch_z_stream m_stream;
+};
+
+} // namespace
+
+#endif
+
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