libopenraw
ifdfile.h
00001 /*
00002  * libopenraw - ifdfile.h
00003  *
00004  * Copyright (C) 2006-2008 Hubert Figuiere
00005  *
00006  * This library is free software: you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public License
00008  * as published by the Free Software Foundation, either version 3 of
00009  * the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with this library.  If not, see
00018  * <http://www.gnu.org/licenses/>.
00019  */
00020 
00021 
00022 
00023 #ifndef _IFD_FILE_H_
00024 #define _IFD_FILE_H_
00025 
00026 #include <vector>
00027 #include <libopenraw/types.h>
00028 #include <libopenraw/consts.h>
00029 #include <libopenraw++/rawfile.h>
00030 
00031 #include "ifddir.h"
00032 
00033 namespace OpenRaw {
00034     namespace IO {
00035         class Stream;
00036         class File;
00037     }
00038 
00039     namespace Internals {
00040         class IFFileContainer;
00041 
00043         struct IFDThumbDesc
00044         {
00045             IFDThumbDesc(uint32_t _x, uint32_t _y, ::or_data_type _type,
00046                                      const IFDDir::Ref & _ifddir)
00047                 : x(_x), y(_y), type(_type), ifddir(_ifddir)
00048                 {
00049                 }
00050             IFDThumbDesc()
00051                 : x(0), y(0), type(OR_DATA_TYPE_NONE), ifddir((IFDDir*)NULL)
00052                 {
00053                 }
00054             uint32_t x;    
00055             uint32_t y;    
00056             ::or_data_type type; 
00057             IFDDir::Ref ifddir; 
00058         };
00059 
00060 
00062         class IFDFile
00063             : public OpenRaw::RawFile
00064         {
00065 
00066         protected:
00067             IFDFile(IO::Stream * s, Type _type, 
00068                     bool instantiateContainer = true);
00069             virtual ~IFDFile();
00070 
00076             virtual ::or_error _enumThumbnailSizes(std::vector<uint32_t> &list);
00077 
00083             virtual ::or_error _locateThumbnail(const IFDDir::Ref & dir,
00084                                                 std::vector<uint32_t> &list);
00090             ::or_error _getRawDataFromDir(RawData & data, IFDDir::Ref & dir);
00091 
00092             typedef std::map<uint32_t, IFDThumbDesc> ThumbLocations;
00093             ThumbLocations    m_thumbLocations;
00094             IO::Stream       *m_io; 
00095             IFDFileContainer *m_container; 
00097             virtual IFDDir::Ref  _locateCfaIfd() = 0;
00098             virtual IFDDir::Ref  _locateMainIfd() = 0;
00099             virtual IFDDir::Ref  _locateExifIfd();
00100 
00101             virtual void _identifyId();
00102 
00103             virtual MetaValue *_getMetaValue(int32_t meta_index);
00104 
00105             IFDDir::Ref       m_cfaIfd;  
00106             IFDDir::Ref       m_mainIfd; 
00110             IFDDir::Ref       m_exifIfd; 
00111         private:
00112 
00113             IFDFile(const IFDFile&);
00114             IFDFile & operator=(const IFDFile &);
00115 
00116             virtual ::or_error _getThumbnail(uint32_t size, Thumbnail & thumbnail);
00117         };
00118 
00119     }
00120 }
00121 
00122 
00123 #endif