Pl_Flate.hh
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// Copyright (c) 2005-2011 Jay Berkenbilt
//
// This file is part of qpdf. This software may be distributed under
// the terms of version 2 of the Artistic License which may be found
// in the source distribution. It is provided "as is" without express
// or implied warranty.
#ifndef __PL_FLATE_HH__
#define __PL_FLATE_HH__
#include <qpdf/Pipeline.hh>
class Pl_Flate: public Pipeline
{
public:
static int const def_bufsize = 65536;
enum action_e { a_inflate, a_deflate };
QPDF_DLL
Pl_Flate(char const* identifier, Pipeline* next,
action_e action, int out_bufsize = def_bufsize);
QPDF_DLL
virtual ~Pl_Flate();
QPDF_DLL
virtual void write(unsigned char* data, int len);
QPDF_DLL
virtual void finish();
private:
void handleData(unsigned char* data, int len, int flush);
void checkError(char const* prefix, int error_code);
unsigned char* outbuf;
int out_bufsize;
action_e action;
bool initialized;
void* zdata;
};
#endif // __PL_FLATE_HH__