|
rpm-build |
d2b433 |
/*
|
|
rpm-build |
d2b433 |
* libopenraw - ifdfilecontainer.h
|
|
rpm-build |
d2b433 |
*
|
|
rpm-build |
d2b433 |
* Copyright (C) 2005-2016 Hubert Figuiere
|
|
rpm-build |
d2b433 |
*
|
|
rpm-build |
d2b433 |
* This library is free software: you can redistribute it and/or
|
|
rpm-build |
d2b433 |
* modify it under the terms of the GNU Lesser General Public License
|
|
rpm-build |
d2b433 |
* as published by the Free Software Foundation, either version 3 of
|
|
rpm-build |
d2b433 |
* the License, or (at your option) any later version.
|
|
rpm-build |
d2b433 |
*
|
|
rpm-build |
d2b433 |
* This library is distributed in the hope that it will be useful,
|
|
rpm-build |
d2b433 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
rpm-build |
d2b433 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
rpm-build |
d2b433 |
* Lesser General Public License for more details.
|
|
rpm-build |
d2b433 |
*
|
|
rpm-build |
d2b433 |
* You should have received a copy of the GNU Lesser General Public
|
|
rpm-build |
d2b433 |
* License along with this library. If not, see
|
|
rpm-build |
d2b433 |
* <http://www.gnu.org/licenses/>.
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
@brief Defines the class for reading TIFF-like file, including but not
|
|
rpm-build |
d2b433 |
limited to TIFF, Exif, CR2, NEF, etc. It is designed to also address
|
|
rpm-build |
d2b433 |
issues like sone RAW file that do create veriation of TIFF just to confuse
|
|
rpm-build |
d2b433 |
readers (like Olympus ORW).
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
#ifndef OR_INTERNALS_IFDFILECONTAINER_H_
|
|
rpm-build |
d2b433 |
#define OR_INTERNALS_IFDFILECONTAINER_H_
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
#include <stddef.h>
|
|
rpm-build |
d2b433 |
#include <stdint.h>
|
|
rpm-build |
d2b433 |
#include <sys/types.h>
|
|
rpm-build |
d2b433 |
#include <vector>
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
#include <libopenraw/consts.h>
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
#include "rawcontainer.hpp"
|
|
rpm-build |
d2b433 |
#include "ifddir.hpp"
|
|
rpm-build |
d2b433 |
#include "io/stream.hpp"
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
namespace OpenRaw {
|
|
rpm-build |
d2b433 |
namespace Internals {
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
class IfdFileContainer
|
|
rpm-build |
d2b433 |
: public RawContainer
|
|
rpm-build |
d2b433 |
{
|
|
rpm-build |
d2b433 |
public:
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
constructor
|
|
rpm-build |
d2b433 |
@param file the file handle
|
|
rpm-build |
d2b433 |
@param offset the offset from the start of the file
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
IfdFileContainer(const IO::Stream::Ptr &file,
|
|
rpm-build |
d2b433 |
off_t offset);
|
|
rpm-build |
d2b433 |
/** destructor */
|
|
rpm-build |
d2b433 |
virtual ~IfdFileContainer();
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
due to the way Exif works, we have to set specific index
|
|
rpm-build |
d2b433 |
to address these IFD
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
enum {
|
|
rpm-build |
d2b433 |
IFD_NONE = -1, /**< invalid IFD. Means an error */
|
|
rpm-build |
d2b433 |
IFD_EXIF = -2, /**< exif IFD: see field 0x6789 in IFD 0 */
|
|
rpm-build |
d2b433 |
IFD_GPS = -3, /**< GPS IFD: see field 0x8825 in IFD 0 */
|
|
rpm-build |
d2b433 |
IFD_INTEROP = -4 /**< interoperability IFD: see field 0xa005 in exif IFD*/
|
|
rpm-build |
d2b433 |
};
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
Check the IFD magic header
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
@param p the pointer to check
|
|
rpm-build |
d2b433 |
@param len the length of the block to check. Likely to be at least 4.
|
|
rpm-build |
d2b433 |
@return the endian if it is the magic header
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
subclasses needs to override it for like Olympus RAW
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
virtual EndianType isMagicHeader(const char *p, int len);
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
Set the current directory
|
|
rpm-build |
d2b433 |
@param dir the index of the directory to read, or one of the specific
|
|
rpm-build |
d2b433 |
IFD index values that are < -1
|
|
rpm-build |
d2b433 |
@return NULL if no error, or return the reference to the current directory
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
IfdDir::Ref setDirectory(int dir);
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
Count the number of image file directories, not including
|
|
rpm-build |
d2b433 |
EXIF, GPS and INTEROP.
|
|
rpm-build |
d2b433 |
@return the number of image file directories
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
int countDirectories(void);
|
|
rpm-build |
d2b433 |
/** Get the directories, loading them if necessary
|
|
rpm-build |
d2b433 |
* @return the directories
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
std::vector<IfdDir::Ref> & directories();
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
Get the number of the current directory
|
|
rpm-build |
d2b433 |
@return the index of the current directory. By default we
|
|
rpm-build |
d2b433 |
are in directory 0. -1 indicates an initialized IFD file
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
int currentDirectory();
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
* get the extra data size chunk associated to the current image directory
|
|
rpm-build |
d2b433 |
* @return the size of the data chunk in bytes
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
size_t getDirectoryDataSize();
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
Return the last error
|
|
rpm-build |
d2b433 |
@return the error code
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
int lastError() const
|
|
rpm-build |
d2b433 |
{
|
|
rpm-build |
d2b433 |
return m_error;
|
|
rpm-build |
d2b433 |
}
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/**
|
|
rpm-build |
d2b433 |
Return the Exif offset from the container begining. By
|
|
rpm-build |
d2b433 |
default it is 0, but some format like MRW needs a different one.
|
|
rpm-build |
d2b433 |
This is an adjustement for the offset in the Exif IFD tag.
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
int exifOffsetCorrection() const
|
|
rpm-build |
d2b433 |
{
|
|
rpm-build |
d2b433 |
return m_exif_offset_correction;
|
|
rpm-build |
d2b433 |
}
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/** Set the exif offset if needed. */
|
|
rpm-build |
d2b433 |
void setExifOffsetCorrection(int corr)
|
|
rpm-build |
d2b433 |
{
|
|
rpm-build |
d2b433 |
m_exif_offset_correction = corr;
|
|
rpm-build |
d2b433 |
}
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
/** locate image data in the ifd (excepted RAW)
|
|
rpm-build |
d2b433 |
* @param dir the IFD dir to locate the image data in
|
|
rpm-build |
d2b433 |
* @param t the type of the image data
|
|
rpm-build |
d2b433 |
* @return an error code
|
|
rpm-build |
d2b433 |
*/
|
|
rpm-build |
d2b433 |
::or_error locateImageData(const IfdDir::Ref& dir, uint32_t& x, uint32_t& y,
|
|
rpm-build |
d2b433 |
::or_data_type& t);
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
protected:
|
|
rpm-build |
d2b433 |
/** hook to be called at the start of _locateDirs() */
|
|
rpm-build |
d2b433 |
virtual bool locateDirsPreHook();
|
|
rpm-build |
d2b433 |
private:
|
|
rpm-build |
d2b433 |
int m_error;
|
|
rpm-build |
d2b433 |
int m_exif_offset_correction;
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
IfdDir::Ref m_current_dir;
|
|
rpm-build |
d2b433 |
std::vector<IfdDir::Ref> m_dirs;
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
bool _locateDirs();
|
|
rpm-build |
d2b433 |
};
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
}
|
|
rpm-build |
d2b433 |
}
|
|
rpm-build |
d2b433 |
|
|
rpm-build |
d2b433 |
#endif
|
|
rpm-build |
d2b433 |
/*
|
|
rpm-build |
d2b433 |
Local Variables:
|
|
rpm-build |
d2b433 |
mode:c++
|
|
rpm-build |
d2b433 |
c-file-style:"stroustrup"
|
|
rpm-build |
d2b433 |
c-file-offsets:((innamespace . 0))
|
|
rpm-build |
d2b433 |
tab-width:2
|
|
rpm-build |
d2b433 |
c-basic-offset:2
|
|
rpm-build |
d2b433 |
indent-tabs-mode:nil
|
|
rpm-build |
d2b433 |
fill-column:80
|
|
rpm-build |
d2b433 |
End:
|
|
rpm-build |
d2b433 |
*/
|