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/*
* libopenraw - ifdfile.h
*
* Copyright (C) 2006-2007 Hubert Figuiere
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef _IFD_FILE_H_
#define _IFD_FILE_H_
#include <vector>
#include <libopenraw/types.h>
#include <libopenraw/consts.h>
#include <libopenraw++/rawfile.h>
#include "ifddir.h"
namespace OpenRaw {
namespace IO {
class Stream;
class File;
}
namespace Internals {
class IFFileContainer;
/** describe the location of a thumbnail in an IFD file */
struct IFDThumbDesc
{
IFDThumbDesc(uint32_t _x, uint32_t _y, ::or_data_type _type,
const IFDDir::Ref & _ifddir)
: x(_x), y(_y), type(_type), ifddir(_ifddir)
{
}
IFDThumbDesc()
: x(0), y(0), type(OR_DATA_TYPE_NONE), ifddir((IFDDir*)NULL)
{
}
uint32_t x; /**< x size. Can be 0 */
uint32_t y; /**< y size. Can be 0 */
::or_data_type type; /**< the data type format */
IFDDir::Ref ifddir; /**< the IFD directory */
};
/** @brief generic IFD based raw file. */
class IFDFile
: public OpenRaw::RawFile
{
protected:
IFDFile(const char *_filename, Type _type,
bool instantiateContainer = true);
virtual ~IFDFile();
/** list the thumbnails in the IFD
* @retval list the list of thumbnails
* @return the error code. OR_ERROR_NOT_FOUND if no
* thumbnail are found.
*/
virtual ::or_error _enumThumbnailSizes(std::vector<uint32_t> &list);
/** locate the thumnail in the IFD
* @param dir the IFDDir where to locate the thumbnail
* @return the error code. OR_ERROR_NOT_FOUND if the
* thumbnail are not found.
*/
virtual ::or_error _locateThumbnail(const IFDDir::Ref & dir,
std::vector<uint32_t> &list);
/** load the compressed rawdata from a standard location in an IFD
* @param data the data storage
* @param dir the IFD
* @return the error code.
*/
::or_error _getRawDataFromDir(RawData & data, IFDDir::Ref & dir);
typedef std::map<uint32_t, IFDThumbDesc> ThumbLocations;
ThumbLocations m_thumbLocations;
IO::Stream *m_io; /**< the IO handle */
IFDFileContainer *m_container; /**< the real container */
virtual IFDDir::Ref _locateCfaIfd() = 0;
virtual IFDDir::Ref _locateMainIfd() = 0;
virtual IFDDir::Ref _locateExifIfd();
virtual MetaValue *_getMetaValue(int32_t meta_index);
IFDDir::Ref m_cfaIfd; /**< the IFD for the CFA */
IFDDir::Ref m_mainIfd; /**< the IFD for the main image
* does not necessarily reference
* the CFA
*/
IFDDir::Ref m_exifIfd; /**< the Exif IFD */
private:
IFDFile(const IFDFile&);
IFDFile & operator=(const IFDFile &);
virtual ::or_error _getThumbnail(uint32_t size, Thumbnail & thumbnail);
};
}
}
#endif
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