/*
 * libopenraw - peffile.cpp
 *
 * Copyright (C) 2006-2007 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/>.
 */


#include <iostream>
#include <libopenraw++/thumbnail.h>
#include <libopenraw++/rawdata.h>

#include "debug.h"
#include "ifd.h"
#include "ifdfilecontainer.h"
#include "ifddir.h"
#include "ifdentry.h"
#include "io/file.h"
#include "peffile.h"

using namespace Debug;

namespace OpenRaw {


	namespace Internals {

		RawFile *PEFFile::factory(const char* _filename)
		{
			return new PEFFile(_filename);
		}

		PEFFile::PEFFile(const char* _filename)
			: IFDFile(_filename, OR_RAWFILE_TYPE_PEF)
		{
		}


		PEFFile::~PEFFile()
		{
		}

		IFDDir::Ref  PEFFile::_locateCfaIfd()
		{
			// in PEF the CFA IFD is the main IFD
			if(!m_mainIfd) {
				m_mainIfd = _locateMainIfd();
			}
			return m_mainIfd;
		}


		IFDDir::Ref  PEFFile::_locateMainIfd()
		{
			return m_container->setDirectory(0);
		}

		::or_error PEFFile::_getRawData(RawData & data, uint32_t /*options*/)
		{
			::or_error err;
			if(!m_cfaIfd) {
				m_cfaIfd = _locateCfaIfd();
			}
			err = _getRawDataFromDir(data, m_cfaIfd);
			if(err == OR_ERROR_NONE) {
				uint16_t compression = 0;
				m_cfaIfd->getValue(IFD::EXIF_TAG_COMPRESSION, compression);
				switch(compression) {
				case 1:
					data.setDataType(OR_DATA_TYPE_CFA);
					break;
				case 65535:
					// TODO decompress
					break;
				default:
					break;
				}
			}
			return err;
		}
	}
}