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 "debug.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             { "GR DIGITAL 2   ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_RICOH,
00052                                                      OR_TYPEID_RICOH_GR2) },
00053             { "SAMSUNG GX10       ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_SAMSUNG,
00054                                                          OR_TYPEID_SAMSUNG_GX10) },
00055             { "Pro 815    ", OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_SAMSUNG, 
00056                                                  OR_TYPEID_SAMSUNG_PRO815) },
00057             { 0, OR_MAKE_FILE_TYPEID(OR_TYPEID_VENDOR_ADOBE, 
00058                                      OR_TYPEID_ADOBE_DNG_GENERIC) }
00059         };
00060 
00061         RawFile *DNGFile::factory(IO::Stream *s)
00062         {
00063             return new DNGFile(s);
00064         }
00065 
00066 
00067         DNGFile::DNGFile(IO::Stream *s)
00068             : TiffEpFile(s, OR_RAWFILE_TYPE_DNG)
00069         {
00070             _setIdMap(s_def);
00071         }
00072 
00073         DNGFile::~DNGFile()
00074         {
00075         }
00076 
00077         ::or_error DNGFile::_getRawData(RawData & data, uint32_t options)
00078         {
00079             ::or_error ret = OR_ERROR_NONE;
00080             if(!m_cfaIfd) {
00081                 m_cfaIfd = _locateCfaIfd();
00082             }
00083 
00084             Trace(DEBUG1) << "_getRawData()\n";
00085 
00086             if (m_cfaIfd) {
00087                 ret = _getRawDataFromDir(data, m_cfaIfd);
00088                 
00089                 if(ret == OR_ERROR_NONE) {
00090                     uint16_t compression = 0;
00091                     if (m_cfaIfd->getValue(IFD::EXIF_TAG_COMPRESSION, compression) &&
00092                         compression == 7) {
00093                         // if the option is not set, decompress
00094                         if ((options & OR_OPTIONS_DONT_DECOMPRESS) == 0) {
00095                             boost::scoped_ptr<IO::Stream> s(new IO::MemStream(data.data(),
00096                                                                               data.size()));
00097                             s->open(); // TODO check success
00098                             boost::scoped_ptr<JFIFContainer> jfif(new JFIFContainer(s.get(), 0));
00099                             LJpegDecompressor decomp(s.get(), jfif.get());
00100                             RawData *dData = decomp.decompress();
00101                             if (dData != NULL) {
00102                                 dData->setCfaPattern(data.cfaPattern());
00103                                 data.swap(*dData);
00104                                 delete dData;
00105                             }
00106                         }
00107                     }
00108                     else {
00109                         data.setDataType(OR_DATA_TYPE_CFA);
00110                     }
00111                 }
00112                 else {
00113                     Trace(ERROR) << "couldn't find raw data\n";
00114                 }
00115             }
00116             else {
00117                 ret = OR_ERROR_NOT_FOUND;
00118             }
00119             return ret;
00120         }
00121 
00122     }
00123 }