libopenraw
dngfile.cpp
00001 /*
00002  * libopenraw - dngfile.cpp
00003  *
00004  * Copyright (C) 2006-2008 Hubert Figuiere
00005  * Copyright (C) 2008 Novell, Inc.
00006  *
00007  * This library is free software: you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public License
00009  * as published by the Free Software Foundation, either version 3 of
00010  * the License, or (at your option) any later version.
00011  *
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with this library.  If not, see
00019  * <http://www.gnu.org/licenses/>.
00020  */
00021 
00022 
00023 #include <libopenraw/libopenraw.h>
00024 #include <libopenraw++/thumbnail.h>
00025 #include <libopenraw++/rawdata.h>
00026 
00027 #include <boost/scoped_ptr.hpp>
00028 
00029 #include "trace.h"
00030 #include "io/file.h"
00031 #include "io/memstream.h"
00032 #include "ifdfilecontainer.h"
00033 #include "jfifcontainer.h"
00034 #include "ljpegdecompressor.h"
00035 #include "ifd.h"
00036 #include "dngfile.h"
00037 
00038 using namespace Debug;
00039 
00040 namespace OpenRaw {
00041 
00042 
00043     namespace Internals {
00044         const IFDFile::camera_ids_t DNGFile::s_def[] = {
00045             { "PENTAX K10D        ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_PENTAX,
00046                                                          OR_TYPEID_PENTAX_K10D_DNG) },
00047             { "R9 - Digital Back DMR",   OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_LEICA,
00048                                                        OR_TYPEID_LEICA_DMR) },
00049             { "M8 Digital Camera",       OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_LEICA,
00050                                                        OR_TYPEID_LEICA_M8) },
00051             { "LEICA X1               ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_LEICA,
00052                                                        OR_TYPEID_LEICA_X1) },           
00053             { "GR DIGITAL 2   ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_RICOH,
00054                                                      OR_TYPEID_RICOH_GR2) },
00055             { "GXR            ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_RICOH,
00056                                                      OR_TYPEID_RICOH_GXR) },
00057             { "SAMSUNG GX10       ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_SAMSUNG,
00058                                                          OR_TYPEID_SAMSUNG_GX10) },
00059             { "Pro 815    ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_SAMSUNG, 
00060                                                  OR_TYPEID_SAMSUNG_PRO815) },
00061             { 0, OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_ADOBE, 
00062                                      OR_TYPEID_ADOBE_DNG_GENERIC) }
00063         };
00064 
00065         RawFile *DNGFile::factory(IO::Stream *s)
00066         {
00067             return new DNGFile(s);
00068         }
00069 
00070 
00071         DNGFile::DNGFile(IO::Stream *s)
00072             : TiffEpFile(s, OR_RAWFILE_TYPE_DNG)
00073         {
00074             _setIdMap(s_def);
00075         }
00076 
00077         DNGFile::~DNGFile()
00078         {
00079         }
00080 
00081         ::or_error DNGFile::_getRawData(RawData & data, uint32_t options)
00082         {
00083             ::or_error ret = OR_ERROR_NONE;
00084             if(!m_cfaIfd) {
00085                 m_cfaIfd = _locateCfaIfd();
00086             }
00087 
00088             Trace(DEBUG1) << "_getRawData()\n";
00089 
00090             if (m_cfaIfd) {
00091                 ret = _getRawDataFromDir(data, m_cfaIfd);
00092                 
00093                 if(ret == OR_ERROR_NONE) {
00094                     uint16_t compression = 0;
00095                     if (m_cfaIfd->getValue(IFD::EXIF_TAG_COMPRESSION, compression) &&
00096                         compression == 7) {
00097                         // if the option is not set, decompress
00098                         if ((options & OR_OPTIONS_DONT_DECOMPRESS) == 0) {
00099                             boost::scoped_ptr<IO::Stream> s(new IO::MemStream(data.data(),
00100                                                                               data.size()));
00101                             s->open(); // TODO check success
00102                             boost::scoped_ptr<JFIFContainer> jfif(new JFIFContainer(s.get(), 0));
00103                             LJpegDecompressor decomp(s.get(), jfif.get());
00104                             RawData *dData = decomp.decompress();
00105                             if (dData != NULL) {
00106                                 dData->setCfaPattern(data.cfaPattern());
00107                                 data.swap(*dData);
00108                                 delete dData;
00109                             }
00110                         }
00111                     }
00112                     else {
00113                         data.setDataType(OR_DATA_TYPE_CFA);
00114                     }
00115                 }
00116                 else {
00117                     Trace(ERROR) << "couldn't find raw data\n";
00118                 }
00119             }
00120             else {
00121                 ret = OR_ERROR_NOT_FOUND;
00122             }
00123             return ret;
00124         }
00125 
00126     }
00127 }