ifdfile.hpp

/* -*- Mode: C++ -*- */
/*
 * libopenraw - ifdfile.hpp
 *
 * Copyright (C) 2006-2020 Hubert Figuière
 *
 * This library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see
 * <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <stdint.h>
#include <sys/types.h>
 
#include <vector>
 
#include <libopenraw/consts.h>
 
#include "rawfile.hpp"
#include "io/stream.hpp"
#include "ifd.hpp"
#include "rawcontainer.hpp"
#include "ifddir.hpp"
#include "makernotedir.hpp"
 
namespace OpenRaw {
 
class MetaValue;
class RawData;
 
namespace Internals {
class IfdFileContainer;
 
class IfdFile : public OpenRaw::RawFile {
#if defined(IN_TESTSUITE)
public:
    friend class ::Test; // for testing
#endif
 
protected:
    IfdFile(const IO::Stream::Ptr &s, Type _type,
            bool instantiateContainer = true);
    virtual ~IfdFile();
 
    virtual ::or_error _enumThumbnailSizes(
        std::vector<uint32_t> &list) override;
 
    ::or_error _addThumbnailFromStream(uint32_t offset, uint32_t len,
                                       std::vector<uint32_t>& list);
    ::or_error _addThumbnailFromEntry(const IfdEntry::Ref& e, off_t offset,
                                      std::vector<uint32_t>& list);
 
    virtual ::or_error _locateThumbnail(const IfdDir::Ref &dir,
                                        std::vector<uint32_t> &list);
    ::or_error _getRawDataFromDir(RawData &data, const IfdDir::Ref &dir);
 
    virtual uint32_t _getJpegThumbnailOffset(const IfdDir::Ref &dir,
                                             uint32_t &len);
 
    IO::Stream::Ptr m_io;          
    IfdFileContainer *m_container; 
    virtual RawContainer *getContainer() const override;
 
    virtual IfdDir::Ref _locateCfaIfd() override;
    virtual IfdDir::Ref _locateMainIfd() override;
 
    virtual void _identifyId() override;
 
    virtual MetaValue *_getMetaValue(int32_t meta_index) override;
 
    virtual uint32_t _translateCompressionType(
        IFD::TiffCompress tiffCompression);
 
    virtual ::or_error _unpackData(uint16_t bpc, uint32_t compression,
                                   RawData &data, uint32_t x, uint32_t y,
                                   uint32_t offset, uint32_t byte_length);
 
    virtual ::or_error _getRawData(RawData &data, uint32_t options) override;
    virtual ::or_error _decompressIfNeeded(RawData &, uint32_t);
 
private:
 
    IfdFile(const IfdFile &) = delete;
    IfdFile &operator=(const IfdFile &) = delete;
};
}
}
 
/*
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  End:
*/