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#ifndef COIN_SOINPUT_READER_H
#define COIN_SOINPUT_READER_H
/**************************************************************************\
*
* This file is part of the Coin 3D visualization library.
* Copyright (C) by Kongsberg Oil & Gas Technologies.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.GPL at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using Coin with software that can not be combined with the GNU
* GPL, and for taking advantage of the additional benefits of our
* support services, please contact Kongsberg Oil & Gas Technologies
* about acquiring a Coin Professional Edition License.
*
* See http://www.coin3d.org/ for more information.
*
* Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
* http://www.sim.no/ sales@sim.no coin-support@coin3d.org
*
\**************************************************************************/
#ifndef COIN_INTERNAL
#error this is a private header file
#endif /* ! COIN_INTERNAL */
// *************************************************************************
#include <Inventor/SbString.h>
#include <stdio.h>
// *************************************************************************
class SoInput_Reader {
public:
SoInput_Reader(void);
virtual ~SoInput_Reader();
// add a new enum for each reader that is implemented
enum ReaderType {
REGULAR_FILE,
MEMBUFFER,
GZFILE,
BZ2FILE,
GZMEMBUFFER
};
// must be overloaded to return type
virtual ReaderType getType(void) const = 0;
// must be overloaded to read data. Should return number of bytes
// read or 0 if eof
virtual size_t readBuffer(char * buf, const size_t readlen) = 0;
// should be overloaded to return filename. Default method returns
// an empty string.
virtual const SbString & getFilename(void);
// default method returns NULL. Should only be overloaded if the
// reader uses FILE * to read data.
virtual FILE * getFilePointer(void);
static SoInput_Reader * createReader(FILE * fp, const SbString & fullname);
public:
SbString dummyname;
};
class SoInput_FileReader : public SoInput_Reader {
public:
SoInput_FileReader(const char * const filename, FILE * filepointer);
virtual ~SoInput_FileReader();
virtual ReaderType getType(void) const;
virtual size_t readBuffer(char * buf, const size_t readlen);
virtual const SbString & getFilename(void);
virtual FILE * getFilePointer(void);
public:
SbString filename;
FILE * fp;
};
class SoInput_MemBufferReader : public SoInput_Reader {
public:
SoInput_MemBufferReader(void * bufPointer, size_t bufSize);
virtual ~SoInput_MemBufferReader();
virtual ReaderType getType(void) const;
virtual size_t readBuffer(char * buf, const size_t readlen);
public:
char * buf;
size_t buflen;
size_t bufpos;
};
class SoInput_GZMemBufferReader : public SoInput_Reader {
public:
SoInput_GZMemBufferReader(void * bufPointer, size_t bufSize);
virtual ~SoInput_GZMemBufferReader();
virtual ReaderType getType(void) const;
virtual size_t readBuffer(char * buf, const size_t readlen);
public:
void * gzmfile;
void * buf;
};
class SoInput_GZFileReader : public SoInput_Reader {
public:
SoInput_GZFileReader(const char * const filename, void * fp);
virtual ~SoInput_GZFileReader();
virtual ReaderType getType(void) const;
virtual size_t readBuffer(char * buf, const size_t readlen);
virtual const SbString & getFilename(void);
public:
void * gzfp;
SbString filename;
};
class SoInput_BZ2FileReader : public SoInput_Reader {
public:
SoInput_BZ2FileReader(const char * const filename, void * fp);
virtual ~SoInput_BZ2FileReader();
virtual ReaderType getType(void) const;
virtual size_t readBuffer(char * buf, const size_t readlen);
virtual const SbString & getFilename(void);
public:
void * bzfp;
SbString filename;
};
#endif // COIN_SOINPUT_READER_H
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