/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 *
 * 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 3 of the
 * License, or (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders of this
 * program give permission to link the code of its release with the
 * OpenSSL project's "OpenSSL" library (or with modified versions of it
 * that use the same license as the "OpenSSL" library), and distribute
 * the linked executables. You must obey the GNU General Public License
 * in all respects for all of the code used other than "OpenSSL". If you
 * modify file(s) with this exception, you may extend this exception to
 * your version of the file(s), but you are not obligated to do so. If
 * you do not wish to do so, delete this exception statement from your
 * version. If you delete this exception statement from all source files
 * in the program, then also delete it here.
 * 
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#include "../PrecompiledHeaders.h"
#include "JpegErrorManager.h"

namespace Orthanc
{
  namespace Internals
  {
    void JpegErrorManager::OutputMessage(j_common_ptr cinfo)
    {
      char message[JMSG_LENGTH_MAX];
      (*cinfo->err->format_message) (cinfo, message);

      JpegErrorManager* that = reinterpret_cast<JpegErrorManager*>(cinfo->err);
      that->message = std::string(message);
    }


    void JpegErrorManager::ErrorExit(j_common_ptr cinfo)
    {
      (*cinfo->err->output_message) (cinfo);

      JpegErrorManager* that = reinterpret_cast<JpegErrorManager*>(cinfo->err);
      longjmp(that->setjmp_buffer, 1);
    }
      

    JpegErrorManager::JpegErrorManager()
    {
      memset(&pub, 0, sizeof(struct jpeg_error_mgr));
      memset(&setjmp_buffer, 0, sizeof(jmp_buf));

      jpeg_std_error(&pub);
      pub.error_exit = ErrorExit;
      pub.output_message = OutputMessage;
    }
  }
}