File indexing completed on 2024-04-28 04:18:52

 // vim: set tabstop=4 shiftwidth=4 expandtab
 /*
 Gwenview: an image viewer
 Copyright 2007 Aurélien Gâteau <agateau@kde.org>
 
 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
 of the License, 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.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 */
 #ifndef JPEGERRORMANAGER_H
 #define JPEGERRORMANAGER_H
 
 #include <csetjmp>
 
 extern "C" {
 #define XMD_H
 #include <jpeglib.h>
 #undef const
 }
 
 namespace Gwenview
 {
 /**
  * A simple error manager which overrides jpeg_error_mgr.error_exit to avoid
  * calls to exit(). It uses setjmp, which I don't like, but I don't fill like
  * introducing exceptions to the code base for now.
  *
  * In order to use it, give an instance of it to jpeg_decompress_struct.err,
  * then call setjmp(errorManager.jmp_buffer)
  */
 struct JPEGErrorManager : public jpeg_error_mgr {
     JPEGErrorManager()
         : jpeg_error_mgr()
     {
         jpeg_std_error(this);
         error_exit = errorExitCallBack;
     }
 
     jmp_buf jmp_buffer;
 
     static void errorExitCallBack(j_common_ptr cinfo)
     {
         auto *myerr = static_cast<JPEGErrorManager *>(cinfo->err);
         char buffer[JMSG_LENGTH_MAX];
         (*cinfo->err->format_message)(cinfo, buffer);
         qCWarning(GWENVIEW_LIB_LOG) << buffer;
         longjmp(myerr->jmp_buffer, 1);
     }
 };
 
 } // namespace
 
 #endif /* JPEGERRORMANAGER_H */