Viewing file:  ImfStdIO.h (5.32 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_IMF_STD_IO_H
#define INCLUDED_IMF_STD_IO_H
//-----------------------------------------------------------------------------
//
// Low-level file input and output for OpenEXR
// based on C++ standard iostreams.
//
//-----------------------------------------------------------------------------
#include "ImfIO.h"
#include "ImfNamespace.h"
#include "ImfExport.h"
#include <fstream>
#include <sstream>
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
//-------------------------------------------
// class StdIFStream -- an implementation of
// class OPENEXR_IMF_INTERNAL_NAMESPACE::IStream based on class std::ifstream
//-------------------------------------------
class StdIFStream: public OPENEXR_IMF_INTERNAL_NAMESPACE::IStream
{
public:
//-------------------------------------------------------
// A constructor that opens the file with the given name.
// The destructor will close the file.
//-------------------------------------------------------
IMF_EXPORT
StdIFStream (const char fileName[]);
//---------------------------------------------------------
// A constructor that uses a std::ifstream that has already
// been opened by the caller. The StdIFStream's destructor
// will not close the std::ifstream.
//---------------------------------------------------------
IMF_EXPORT
StdIFStream (std::ifstream &is, const char fileName[]);
IMF_EXPORT
virtual ~StdIFStream ();
IMF_EXPORT
virtual bool read (char c[/*n*/], int n);
IMF_EXPORT
virtual Int64 tellg ();
IMF_EXPORT
virtual void seekg (Int64 pos);
IMF_EXPORT
virtual void clear ();
private:
std::ifstream * _is;
bool _deleteStream;
};
//-------------------------------------------
// class StdOFStream -- an implementation of
// class OPENEXR_IMF_INTERNAL_NAMESPACE::OStream based on class std::ofstream
//-------------------------------------------
class StdOFStream: public OPENEXR_IMF_INTERNAL_NAMESPACE::OStream
{
public:
//-------------------------------------------------------
// A constructor that opens the file with the given name.
// The destructor will close the file.
//-------------------------------------------------------
IMF_EXPORT
StdOFStream (const char fileName[]);
//---------------------------------------------------------
// A constructor that uses a std::ofstream that has already
// been opened by the caller. The StdOFStream's destructor
// will not close the std::ofstream.
//---------------------------------------------------------
IMF_EXPORT
StdOFStream (std::ofstream &os, const char fileName[]);
IMF_EXPORT
virtual ~StdOFStream ();
IMF_EXPORT
virtual void write (const char c[/*n*/], int n);
IMF_EXPORT
virtual Int64 tellp ();
IMF_EXPORT
virtual void seekp (Int64 pos);
private:
std::ofstream * _os;
bool _deleteStream;
};
//------------------------------------------------
// class StdOSStream -- an implementation of class
// OPENEXR_IMF_INTERNAL_NAMESPACE::OStream, based on class std::ostringstream
//------------------------------------------------
class StdOSStream: public OPENEXR_IMF_INTERNAL_NAMESPACE::OStream
{
public:
IMF_EXPORT
StdOSStream ();
IMF_EXPORT
virtual void write (const char c[/*n*/], int n);
IMF_EXPORT
virtual Int64 tellp ();
IMF_EXPORT
virtual void seekp (Int64 pos);
IMF_EXPORT
std::string str () const {return _os.str();}
private:
std::ostringstream _os;
};
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
#endif
|