drawdecoder_p.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2008-10-09
 * Description : internal private container for DRawDecoder
 *
 * Copyright (C) 2008-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_DRAW_DECODER_PRIVATE_H
#define DIGIKAM_DRAW_DECODER_PRIVATE_H
 
#include "digikam_config.h"
 
// Qt includes
 
#include <QByteArray>
 
// Pragma directives to reduce warnings from LibRaw and LCMS2 headers
#if !defined(Q_OS_DARWIN) && defined(Q_CC_GNU)
#   pragma GCC diagnostic push
#   pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
 
#if defined(Q_CC_CLANG)
#   pragma clang diagnostic push
#   pragma clang diagnostic ignored "-Wdeprecated-declarations"
#   pragma clang diagnostic ignored "-Wundef"
#   pragma clang diagnostic ignored "-Wdeprecated-register"
#   pragma clang diagnostic ignored "-Wmacro-redefined"
#endif
 
// LibRaw includes
 
#include <libraw.h>
 
// Restore warnings
#if !defined(Q_OS_DARWIN) && defined(Q_CC_GNU)
#   pragma GCC diagnostic pop
#endif
 
#if defined(Q_CC_CLANG)
#   pragma clang diagnostic pop
#endif
 
// Local includes
 
#include "drawinfo.h"
#include "drawdecoder.h"
 
namespace Digikam
{
 
extern "C"
{
    int  s_progressCallbackForLibRaw(void* context, enum LibRaw_progress p, int iteration, int expected);
    void s_exifParserCallbackForLibRaw(void* context, int tag, int type, int len, unsigned int ord, void* ifp, INT64 base);
}
 
class Q_DECL_HIDDEN DRawDecoder::Private
{
 
public:
 
    explicit Private(DRawDecoder* const p);
    ~Private();
 
public:
 
    int    progressCallback(enum LibRaw_progress p, int iteration, int expected);
    void   exifParserCallback(int tag, int type, int len, unsigned int ord, void* ifp, INT64 base);
 
    void   setProgress(double value);
    double progressValue() const;
 
    bool   loadFromLibraw(const QString& filePath, QByteArray& imageData,
                          int& width, int& height, int& rgbmax);
 
public:
 
    static void createPPMHeader(QByteArray& imgData, libraw_processed_image_t* const img);
 
    static void fillIndentifyInfo(LibRaw* const raw, DRawInfo& identify);
 
    static bool loadEmbeddedPreview(QByteArray&, LibRaw* const raw);
 
    static bool loadHalfPreview(QImage&, LibRaw* const raw);
 
private:
 
    double       m_progress;
 
    DRawDecoder* m_parent;
 
    friend class DRawDecoder;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_DRAW_DECODER_PRIVATE_H