File indexing completed on 2025-01-05 03:56:02

 /* ============================================================
  *
  * 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 - Mosaic identification.
  *
  * 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::identMosaic(DRawInfo* const identify,
                                     DRawInfo* const identifyMake)
 {
     // Check if CFA layout is supported by DNG SDK.
 
     bool fujiRotate90 = false;
 
     // Standard bayer layouts
 
     if      (identify->filterPattern       == QLatin1String("GRBGGRBGGRBGGRBG"))
     {
         bayerPattern = Private::Standard;
         filter       = 0;
     }
     else if (identify->filterPattern       == QLatin1String("RGGBRGGBRGGBRGGB"))
     {
         bayerPattern = Private::Standard;
         filter       = 1;
     }
     else if (identify->filterPattern       == QLatin1String("BGGRBGGRBGGRBGGR"))
     {
         bayerPattern = Private::Standard;
         filter       = 2;
     }
     else if (identify->filterPattern       == QLatin1String("GBRGGBRGGBRGGBRG"))
     {
         bayerPattern = Private::Standard;
         filter       = 3;
     }
     else if ((identify->filterPattern      == QLatin1String("RGBGRGBGRGBGRGBG")) &&
              (identifyMake->make.toUpper() == QLatin1String("FUJIFILM")))
     {
         // Fuji layouts
 
         bayerPattern = Private::Fuji;
         fujiRotate90 = false;
         filter       = 0;
     }
     else if ((identify->filterPattern      == QLatin1String("RBGGBRGGRBGGBRGG")) &&
              (identifyMake->make.toUpper() == QLatin1String("FUJIFILM")))
     {
         // Fuji layouts
 
         bayerPattern = Private::Fuji;
         fujiRotate90 = true;
         filter       = 0;
     }
     else if ((identify->filterPattern      == QLatin1String("GGGGBRGGGGRBGGGG")) &&
              (identifyMake->make.toUpper() == QLatin1String("FUJIFILM")))
     {
         // Fuji layouts
 
         bayerPattern = Private::Fuji6x6;
         fujiRotate90 = false;
         filter       = 1;
     }
     else if ((identify->rawColors == 3)                 &&
              (identify->filterPattern.isEmpty())        &&
              ((uint32)rawData.size() == (identify->outputSize.width() * identify->outputSize.height() * 3 * sizeof(uint16))))
     {
         bayerPattern = Private::LinearRaw;
     }
     else if (identify->rawColors == 4)           // Four color sensors
     {
         bayerPattern = Private::FourColor;
 
         if (identify->filterPattern.length() != 16)
         {
             qCCritical(DIGIKAM_GENERAL_LOG) << "DNGWriter: Bayer mosaic not supported. Aborted...";
 
             return FILE_NOT_SUPPORTED;
         }
 
         for (int i = 0 ; i < 16 ; ++i)
         {
             filter = filter >> 2;
 
             if      (identify->filterPattern[i] == QLatin1Char('G'))
             {
                 filter |= 0x00000000;
             }
             else if (identify->filterPattern[i] == QLatin1Char('M'))
             {
                 filter |= 0x40000000;
             }
             else if (identify->filterPattern[i] == QLatin1Char('C'))
             {
                 filter |= 0x80000000;
             }
             else if (identify->filterPattern[i] == QLatin1Char('Y'))
             {
                 filter |= 0xC0000000;
             }
             else
             {
                 qCCritical(DIGIKAM_GENERAL_LOG) << "DNGWriter: Bayer mosaic not supported. Aborted...";
 
                 return FILE_NOT_SUPPORTED;
             }
         }
     }
     else
     {
         qCCritical(DIGIKAM_GENERAL_LOG) << "DNGWriter: Bayer mosaic not supported. Aborted...";
 
         return FILE_NOT_SUPPORTED;
     }
 
     if (fujiRotate90)
     {
         if (!fujiRotate(rawData, *identify))
         {
             qCCritical(DIGIKAM_GENERAL_LOG) << "Can not rotate fuji image. Aborted...";
 
             return PROCESS_FAILED;
         }
 
         int tmp      = outputWidth;
         outputWidth  = outputHeight;
         outputHeight = tmp;
     }
 
     activeArea   = dng_rect(identify->outputSize.height(), identify->outputSize.width());
     activeWidth  = identify->outputSize.width();
     activeHeight = identify->outputSize.height();
 
     // Check if number of Raw Color components is supported.
 
     if ((identify->rawColors != 3) &&
         (identify->rawColors != 4))
     {
         qCCritical(DIGIKAM_GENERAL_LOG) << "DNGWriter: Number of Raw color components not supported. Aborted...";
 
         return PROCESS_FAILED;
     }
 
     width  = identify->outputSize.width();
     height = identify->outputSize.height();
 /*
     debugExtractedRAWData(rawData);
 */
     if (cancel)
     {
         return PROCESS_CANCELED;
     }
 
     return PROCESS_CONTINUE;
 }
 
 } // namespace Digikam