#112673# initial checkin of HWP filter

1 files changed, 160 insertions, 0 deletions

diff --git a/hwpfilter/source/hgzip.h b/hwpfilter/source/hgzip.h
new file mode 100644
index 000000000000..c35835a67c16
--- /dev/null
+++ b/hwpfilter/source/hgzip.h
@@ -0,0 +1,160 @@
+/*************************************************************************
+ *
+ *  $RCSfile: hgzip.h,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: dvo $ $Date: 2003-10-15 14:35:46 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2001 by Mizi Research Inc.
+ *  Copyright 2003 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Mizi Research Inc.
+ *
+ *  Copyright: 2001 by Mizi Research Inc.
+ *  Copyright: 2003 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+/* $Id: hgzip.h,v 1.1 2003-10-15 14:35:46 dvo Exp $ */
+
+#ifndef _HWPGZIP_H_
+#define _HWPGZIP_H_
+
+// DVO: add zlib/ prefix
+#include "zlib/zlib.h"
+
+class HStream;
+/**
+ * @short Structure for using z_stream
+ */
+struct gz_stream
+{
+    z_stream stream;
+/**
+ * The error code of z_stream operation
+ */
+    int      z_err;
+/**
+ * EOF of the input file
+ */
+    int      z_eof;
+/**
+ * Stream
+ */
+    HStream*     _inputstream;
+/**
+ * Input buffer
+ */
+    Byte     *inbuf;
+/**
+ * Output buffer
+ */
+    Byte     *outbuf;
+/**
+ * Crc32 of uncompressed data
+ */
+    uLong    crc;
+/**
+ * Stream
+ */
+    char     *msg;
+/**
+ * It becomes one when the input file type is not gz file
+ */
+    int      transparent;
+/**
+ * 'w' or 'r'
+ */
+    char     mode;
+};
+
+/**
+ *  Opens a gzipped stream for reading.
+ *    gz_open returns NULL if the stream could not be opened or if there was
+ *  insufficient memory to allocate the (de)compression state; errno
+ *  can be checked to distinguish the two cases (if errno is zero, the
+ *  zlib error is Z_MEM_ERROR).
+ * @param _stream Reference of stream object having binary data.
+ */
+gz_stream   *gz_open    ( HStream& _stream );
+/**
+ * Flushes all pending output if necessary, closes the compressed stream
+ * and deallocates all the (de)compression state
+ */
+int     gz_close    ( gz_stream *file );
+/**
+ * Reads the given number of uncompressed bytes from the compressed stream
+ * @param file Gzipped stream
+ * @param buf Buffer to have the data to be read
+ * @param len Length of data to be read
+ * @returns The number of bytes actually read
+ */
+int     gz_read     ( gz_stream *file, voidp  buf, unsigned len );
+/**
+ * Writes the given number of uncompressed bytes into the compressed file
+ * This exists for future using.
+ * @returns The number of bytes actually written
+ */
+int     gz_write    ( gz_stream *file, const voidp buf, unsigned len );
+/**
+ * Flushes all pending output into the compressed file
+ * gz_flush should be called only when strictly necessary because it can
+ * degrade compression
+ * @param flush Is as in the deflate() function
+ */
+int     gz_flush    ( gz_stream *file, int flush );
+/**
+ * Not implemented.
+ */
+int     gz_seek     ( gz_stream *file, long offset, int whence );
+/**
+ * Not implemented.
+ */
+long        gz_tell     ( gz_stream *file );
+#endif                                            /* _HWPGZIP_H_ */