/* -*- Mode: C++ -*- */

/*

 * libopenraw - jfifcontainer.h

 *

 * Copyright (C) 2006-2015 Hubert Figuiere

 *

 * 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/>.

 */

/**

 * @brief a JPEG container

 */

#ifndef OR_INTERNALS_JFIFCONTAINER_H_

#define OR_INTERNALS_JFIFCONTAINER_H_

#include <stdint.h>

#include <sys/types.h>

#include <setjmp.h>

#include <memory>

#include "ifddir.hpp"

#include "io/stream.hpp"

#include "rawcontainer.hpp"

extern "C" {

#include <jpeglib.h>

}

namespace OpenRaw {

class BitmapData;

namespace Internals {

class IfdFileContainer;

class JfifContainer

  : public RawContainer

{

public:

  JfifContainer(const IO::Stream::Ptr &file, off_t offset);

  /** destructor */

  virtual ~JfifContainer();

  bool getDimensions(uint32_t &x, uint32_t &y);

  bool getDecompressedData(BitmapData &data);

  /** Main ifd is 0 */

  IfdDir::Ref mainIfd();

  /** Return ifd at index */

  IfdDir::Ref getIfdDirAt(int idx);

  /** Return Exif ifd */

  IfdDir::Ref exifIfd();

  /** Return the ifd container */

  std::unique_ptr<IfdFileContainer> & ifdContainer();

  jmp_buf & jpegjmp() {

    return m_jpegjmp;

  }

private:

  int _loadHeader();

  struct jpeg_decompress_struct m_cinfo;

  struct jpeg_error_mgr m_jerr;

  jmp_buf m_jpegjmp;

  bool m_headerLoaded;

  std::unique_ptr<IfdFileContainer> m_ifd;

};

}

}

#endif