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89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
// ***************************************************************** -*- C++ -*-
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/*
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* Copyright (C) 2006 Andreas Huggel <ahuggel@gmx.net>
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*
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* This program is part of the Exiv2 distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
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*/
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/*!
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@file pngchunk.hpp
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@brief Class PngChunk to parse PNG chunk data.
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@version $Rev: 823 $
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@author Andreas Huggel (ahu)
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<a href="mailto:ahuggel@gmx.net">ahuggel@gmx.net</a>
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@author Gilles Caulier (gc)
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<a href="mailto:caulier dot gilles at kdemail dot net">caulier dot gilles at kdemail dot net</a>
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@date 12-Jun-06, gc: submitted
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*/
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#ifndef PNGCHUNK_HPP_
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#define PNGCHUNK_HPP_
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// *****************************************************************************
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// included header files
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#include "types.hpp"
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// + standard includes
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#include <iosfwd>
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#include <cassert>
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// *****************************************************************************
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// namespace extensions
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namespace Exiv2 {
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// *****************************************************************************
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// class declarations
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class Image;
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// *****************************************************************************
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// class definitions
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/*!
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@brief Stateless parser class for data in PNG chunk format. Images use this
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class to decode and encode PNG-based data.
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*/
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class PngChunk {
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public:
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/*!
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@brief Decode PNG chunk metadata from a data buffer \em pData of length
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\em size into \em pImage.
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@param pImage Pointer to the image to hold the metadata
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@param pData Pointer to the data buffer. Must point to PNG chunk data;
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no checks are performed.
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@param size Length of the data buffer.
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*/
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static void decode(Image* pImage,
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const byte* pData,
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long size);
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private:
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//! @name Accessors
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//@{
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/*!
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@brief Todo: Decode ImageMagick raw text profile including encoded Exif/Iptc metadata byte array.
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*/
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static DataBuf readRawProfile(const DataBuf& text);
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//@}
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}; // class PngChunk
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} // namespace Exiv2
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#endif // #ifndef PNGCHUNK_HPP_
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