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#ifndef COIN_SOOUTPUT_WRITER_H
#define COIN_SOOUTPUT_WRITER_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/SoOutput.h>
#include <stdio.h>
// *************************************************************************
class SoOutput_Writer {
public:
SoOutput_Writer(void);
virtual ~SoOutput_Writer();
// add more enums as more writers are added
enum WriterType {
REGULAR_FILE,
MEMBUFFER,
GZFILE,
BZ2FILE
};
// default method returns NULL. Should return the FILE pointer if
// the Writer uses stdio to write.
virtual FILE * getFilePointer(void);
// must be overloaded to return the number of bites written so far
virtual size_t bytesInBuf(void) = 0;
// must be overloaded to return the writer type
virtual WriterType getType(void) const = 0 ;
// must be overloaded to write numbytes bytes to buf. Should
// return the number of bytes actually written.
virtual size_t write(const char * buf, size_t numbytes, const SbBool binary) = 0;
static SoOutput_Writer * createWriter(FILE * fp,
const SbBool shouldclose,
const SbName & compmethod,
const float level);
};
// class for stdio writing
class SoOutput_FileWriter : public SoOutput_Writer {
public:
SoOutput_FileWriter(FILE * fp, const SbBool shouldclose);
virtual ~SoOutput_FileWriter();
virtual size_t bytesInBuf(void);
virtual WriterType getType(void) const;
virtual size_t write(const char * buf, size_t numbytes, const SbBool binary);
virtual FILE * getFilePointer(void);
public:
FILE * fp;
SbBool shouldclose;
};
// class for membuffer writing
class SoOutput_MemBufferWriter : public SoOutput_Writer {
public:
SoOutput_MemBufferWriter(void * buffer,
const size_t len,
SoOutputReallocCB * reallocFunc,
size_t offset);
virtual ~SoOutput_MemBufferWriter();
virtual size_t bytesInBuf(void);
virtual WriterType getType(void) const;
virtual size_t write(const char * buf, size_t numbytes, const SbBool binary);
public:
SbBool makeRoomInBuf(size_t bytes);
char * buf;
size_t bufsize;
SoOutputReallocCB * reallocfunc;
size_t offset;
size_t startoffset;
};
// class for zlib writing
class SoOutput_GZFileWriter : public SoOutput_Writer {
public:
SoOutput_GZFileWriter(FILE * fp, const SbBool shouldclose, const float level);
virtual ~SoOutput_GZFileWriter();
virtual size_t bytesInBuf(void);
virtual WriterType getType(void) const;
virtual size_t write(const char * buf, size_t numbytes, const SbBool binary);
public:
void * gzfp;
};
class SoOutput_BZ2FileWriter : public SoOutput_Writer {
public:
SoOutput_BZ2FileWriter(FILE * fp, const SbBool shouldclose, const float level);
virtual ~SoOutput_BZ2FileWriter();
virtual size_t bytesInBuf(void);
virtual WriterType getType(void) const;
virtual size_t write(const char * buf, size_t numbytes, const SbBool binary);
public:
void * bzfp;
FILE * fp;
size_t writecounter;
};
#endif // COIN_SOOUTPUT_WRITER_H
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