File indexing completed on 2025-01-05 03:56:01

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2008-09-25
  * Description : a tool to convert RAW file to DNG - Export to target DNG.
  *
  * SPDX-FileCopyrightText: 2008-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  * SPDX-FileCopyrightText: 2010-2011 by Jens Mueller <tschenser at gmx dot de>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "dngwriter_p.h"
 
 // Local includes
 
 #include "dngwriterhost.h"
 
 namespace Digikam
 {
 
 int DNGWriter::Private::exportTarget(DNGWriterHost& host,
                                      AutoPtr<dng_negative>& negative,
                                      AutoPtr<dng_image>& image)
 {
     qCDebug(DIGIKAM_GENERAL_LOG) << "DNGWriter: Build DNG Negative";
 
     // Assign Raw image data.
 
     negative->SetStage1Image(image);
 
     // Compute linearized and range mapped image
 
     negative->BuildStage2Image(host);
 
     // Compute demosaiced image (used by preview and thumbnail)
 
     negative->SetStage3Gain(0.6);
     negative->BuildStage3Image(host);
 
     negative->SynchronizeMetadata();
     negative->RebuildIPTC(true);
 
     if (cancel)
     {
         return PROCESS_CANCELED;
     }
 
     // -----------------------------------------------------------------------------------------
 
     dng_preview_list previewList;
     dng_render negRender(host, *negative.Get());
 
     if (previewMode != DNGWriter::NONE)
     {
         qCDebug(DIGIKAM_GENERAL_LOG) << "DNGWriter: DNG preview image creation";
 
         dng_jpeg_preview* const jpeg_preview = new dng_jpeg_preview();
         jpeg_preview->fInfo.fApplicationName.Set_ASCII(QString::fromLatin1("digiKam").toLatin1().constData());
         jpeg_preview->fInfo.fApplicationVersion.Set_ASCII(digiKamVersion().toLatin1().constData());
         jpeg_preview->fInfo.fDateTime        = orgDateTimeInfo.Encode_ISO_8601();
         jpeg_preview->fInfo.fColorSpace      = previewColorSpace_sRGB;
 
         negRender.SetMaximumSize(previewMode == MEDIUM ? 1280 : width);
         AutoPtr<dng_image> negImage(negRender.Render());
         dng_image_writer jpegWriter;
         jpegWriter.EncodeJPEGPreview(host, *negImage.Get(), *jpeg_preview, 5);
         AutoPtr<dng_preview> jp(static_cast<dng_preview*>(jpeg_preview));
         previewList.Append(jp);
     }
 
     if (cancel)
     {
         return PROCESS_CANCELED;
     }
 
     // -----------------------------------------------------------------------------------------
 
     qCDebug(DIGIKAM_GENERAL_LOG) << "DNGWriter: DNG thumbnail creation";
 
     dng_image_preview* const thumbnail = new dng_image_preview();
     thumbnail->fInfo.fApplicationName.Set_ASCII(QString::fromLatin1("digiKam").toLatin1().constData());
     thumbnail->fInfo.fApplicationVersion.Set_ASCII(digiKamVersion().toLatin1().constData());
     thumbnail->fInfo.fDateTime         = orgDateTimeInfo.Encode_ISO_8601();
     thumbnail->fInfo.fColorSpace       = previewColorSpace_sRGB;
 
     negRender.SetMaximumSize(256);
     thumbnail->fImage.Reset(negRender.Render());
     AutoPtr<dng_preview> tn(static_cast<dng_preview*>(thumbnail));
     previewList.Append(tn);
 
     if (cancel)
     {
         return PROCESS_CANCELED;
     }
 
     // -----------------------------------------------------------------------------------------
 
     qCDebug(DIGIKAM_GENERAL_LOG) << "DNGWriter: Creating DNG file" << outputInfo.fileName();
 
     dng_image_writer writer;
     dng_file_stream filestream(QFile::encodeName(dngFilePath).constData(), true);
 
     writer.WriteDNG(host,
                     filestream,
                     *negative.Get(),
                     &previewList,
                     dngVersion_SaveDefault,
                     !jpegLossLessCompression
                    );
 
     // -----------------------------------------------------------------------------------------
     // Metadata makernote cleanup using Exiv2 for some RAW file types
     // See bug #204437 and #210371, and write XMP Sidecar if necessary
     // We disable writing to RAW files, see bug #381432
 /*
     QScopedPointer<DMetadata> meta(new DMetadata);
 
     if (meta->load(dngFilePath))
     {
         if (inputInfo.suffix().toUpper() == QLatin1String("ORF"))
         {
             qCDebug(DIGIKAM_GENERAL_LOG) << "DNGWriter: cleanup makernotes using Exiv2";
 
             meta->setWriteDngFiles(true);
             meta->removeExifTag("Exif.OlympusIp.BlackLevel");
         }
         else
         {
             // Don't touch DNG file and create XMP sidecar depending of host application settings.
             meta->setWriteDngFiles(false);
         }
 
         meta->applyChanges();
     }
 */
     // -----------------------------------------------------------------------------------------
     // update modification time if desired
 
     if (updateFileDate)
     {
         qCDebug(DIGIKAM_GENERAL_LOG) << "DNGWriter: Setting modification date from meta data:" << fileDate.toString();
 
         DFileOperations::setModificationTime(dngFilePath, fileDate);
     }
 
     return PROCESS_CONTINUE;
 }
 
 } // namespace Digikam