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Diffstat (limited to 'src/libs/dimg/loaders/jpegloader.h')
-rw-r--r-- | src/libs/dimg/loaders/jpegloader.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/libs/dimg/loaders/jpegloader.h b/src/libs/dimg/loaders/jpegloader.h new file mode 100644 index 00000000..b5d64f18 --- /dev/null +++ b/src/libs/dimg/loaders/jpegloader.h @@ -0,0 +1,80 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2005-06-14 + * Description : A JPEG IO file for DImg framework + * + * Copyright (C) 2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>, Gilles Caulier + * Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com> + * + * 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, 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. + * + * ============================================================ */ + +#ifndef JPEGLOADER_H +#define JPEGLOADER_H + +// C ansi includes. + +extern "C" +{ +#include <setjmp.h> +#include <jpeglib.h> +} + +// TQt includes. + +#include <tqstring.h> + +// Local includes. + +#include "dimgloader.h" +#include "digikam_export.h" + +namespace Digikam +{ +class DImg; + +class DIGIKAM_EXPORT JPEGLoader : public DImgLoader +{ + +public: + + JPEGLoader(DImg* image); + + bool load(const TQString& filePath, DImgLoaderObserver *observer); + bool save(const TQString& filePath, DImgLoaderObserver *observer); + + virtual bool hasAlpha() const { return false; } + virtual bool sixteenBit() const { return false; } + virtual bool isReadOnly() const { return false; }; + +private: + + // To manage Errors/Warnings handling provide by libjpeg + + struct dimg_jpeg_error_mgr : public jpeg_error_mgr + { + jmp_buf setjmp_buffer; + }; + + static void dimg_jpeg_error_exit(j_common_ptr cinfo); + static void dimg_jpeg_emit_message(j_common_ptr cinfo, int msg_level); + static void dimg_jpeg_output_message(j_common_ptr cinfo); + +}; + +} // NameSpace Digikam + +#endif /* JPEGLOADER_H */ |