cstream.h

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/* 
 *      HT Editor
 *      cstream.cc
 *
 *      Copyright (C) 1999-2002 Sebastian Biallas (sb@web-productions.de)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      This program 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 General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#ifndef __CSTREAM_H__
#define __CSTREAM_H__

#include "global.h"
#include "stream.h"

/*
 *      NEVER use ht_compressed_stream for both reading and writing!
 */
 
#define COMPRESSED_STREAM_DEFAULT_GRANULARITY 10240

class ht_compressed_stream: public ht_layer_stream {
protected:
        byte *buffer;
        UINT buffersize;
        UINT bufferpos;
public:
                        void    init(ht_stream *stream, bool own_stream, UINT granularity=COMPRESSED_STREAM_DEFAULT_GRANULARITY);
        virtual void    done();
/* overwritten */
        virtual UINT    read(void *buf, UINT size);
        virtual UINT    write(const void *buf, UINT size);
protected:
                        bool flush_compressed();
                        bool flush_uncompressed();
};

#endif

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