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/*****************************************************************************/
// Copyright 2006-2011 Adobe Systems Incorporated
// All Rights Reserved.
//
// NOTICE: Adobe permits you to use, modify, and distribute this file in
// accordance with the terms of the Adobe license agreement accompanying it.
/*****************************************************************************/
/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_info.h#1 $ */
/* $DateTime: 2012/05/30 13:28:51 $ */
/* $Change: 832332 $ */
/* $Author: tknoll $ */
/** \file
* Class for holding top-level information about a DNG image.
*/
/*****************************************************************************/
#ifndef __dng_info__
#define __dng_info__
/*****************************************************************************/
#include "dng_classes.h"
#include "dng_ifd.h"
#include "dng_exif.h"
#include "dng_shared.h"
#include "dng_errors.h"
#include "dng_sdk_limits.h"
#include "dng_auto_ptr.h"
/*****************************************************************************/
/// \brief Top-level structure of DNG file with access to metadata.
///
/// See \ref spec_dng "DNG 1.1.0 specification" for information on member fields of this class.
class dng_info
{
public:
uint64 fTIFFBlockOffset;
uint64 fTIFFBlockOriginalOffset;
bool fBigEndian;
uint32 fMagic;
AutoPtr<dng_exif> fExif;
AutoPtr<dng_shared> fShared;
int32 fMainIndex;
int32 fMaskIndex;
uint32 fIFDCount;
AutoPtr<dng_ifd> fIFD [kMaxSubIFDs + 1];
uint32 fChainedIFDCount;
AutoPtr<dng_ifd> fChainedIFD [kMaxChainedIFDs];
protected:
uint32 fMakerNoteNextIFD;
public:
dng_info ();
virtual ~dng_info ();
/// Read dng_info from a dng_stream
/// \param host DNG host used for progress updating, abort testing, buffer allocation, etc.
/// \param stream Stream to read DNG data from.
virtual void Parse (dng_host &host,
dng_stream &stream);
/// Must be called immediately after a successful Parse operation.
virtual void PostParse (dng_host &host);
/// Test validity of DNG data.
/// \retval true if stream provided a valid DNG.
virtual bool IsValidDNG ();
protected:
virtual void ValidateMagic ();
virtual void ParseTag (dng_host &host,
dng_stream &stream,
dng_exif *exif,
dng_shared *shared,
dng_ifd *ifd,
uint32 parentCode,
uint32 tagCode,
uint32 tagType,
uint32 tagCount,
uint64 tagOffset,
int64 offsetDelta);
virtual bool ValidateIFD (dng_stream &stream,
uint64 ifdOffset,
int64 offsetDelta);
virtual void ParseIFD (dng_host &host,
dng_stream &stream,
dng_exif *exif,
dng_shared *shared,
dng_ifd *ifd,
uint64 ifdOffset,
int64 offsetDelta,
uint32 parentCode);
virtual bool ParseMakerNoteIFD (dng_host &host,
dng_stream &stream,
uint64 ifdSize,
uint64 ifdOffset,
int64 offsetDelta,
uint64 minOffset,
uint64 maxOffset,
uint32 parentCode);
virtual void ParseMakerNote (dng_host &host,
dng_stream &stream,
uint32 makerNoteCount,
uint64 makerNoteOffset,
int64 offsetDelta,
uint64 minOffset,
uint64 maxOffset);
virtual void ParseSonyPrivateData (dng_host &host,
dng_stream &stream,
uint64 count,
uint64 oldOffset,
uint64 newOffset);
virtual void ParseDNGPrivateData (dng_host &host,
dng_stream &stream);
private:
// Hidden copy constructor and assignment operator.
dng_info (const dng_info &info);
dng_info & operator= (const dng_info &info);
};
/*****************************************************************************/
#endif
/*****************************************************************************/
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