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  • Committer: Bazaar Package Importer
  • Author(s): Anthony Mercatante
  • Date: 2006-12-07 18:40:10 UTC
  • mfrom: (1.1.2 upstream)
  • Revision ID: james.westby@ubuntu.com-20061207184010-0ouu8v0dr8nznob9
Tags: 0.12-0ubuntu1
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src/tiffparser.hpp
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/*!
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  @file    tiffparser.hpp
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  @brief   Class TiffParser to parse TIFF data.
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  @version $Rev: 808 $
 
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  @version $Rev: 837 $
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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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  @date    15-Mar-06, ahu: created
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// *****************************************************************************
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// included header files
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#include "tiffcomposite.hpp"
 
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#include "tifffwd.hpp"
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#include "types.hpp"
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// + standard includes
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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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          is created.  If the pointer that is returned is 0, then the TIFF entry
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          should be ignored.
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        */
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        static TiffComponent::AutoPtr create(uint32_t extendedTag,
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                                             uint16_t group);
 
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        static std::auto_ptr<TiffComponent> create(uint32_t extendedTag,
 
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                                                   uint16_t group);
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    private:
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        static const TiffStructure tiffStructure_[]; //<! TIFF structure
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                           in TIFF format; no checks are performed.
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          @param size      Length of the data buffer.
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          @param createFct Factory function to create new TIFF components.
 
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          @param findDecoderFct Function to access special decoding info.
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        */
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        static void decode(      Image*             pImage,
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                           const byte*              pData,
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                                 uint32_t           size,
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                                 TiffCompFactoryFct createFct);
 
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                                 TiffCompFactoryFct createFct,
 
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                                 FindDecoderFct     findDecoderFct);
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    }; // class TiffParser
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    /*!
 
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      @brief Table of TIFF decoding functions and find function.
 
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             This class is separated from the metadata decoder visitor so that
 
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             the parser can be parametrized with a different table if needed.
 
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             This is used, eg., for CR2 format, which uses a different decoder
 
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             table.
 
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     */
 
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    class TiffDecoder {
 
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    public:
 
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        /*!
 
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          @brief Find the decoder function for a key. 
 
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          If the returned pointer is 0, the tag should not be decoded, 
 
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          else the decoder function should be used.
 
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          @param make Camera make
 
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          @param extendedTag Extended tag
 
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          @param group %Group
 
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          @return Pointer to the decoder function
 
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         */
 
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        static const DecoderFct findDecoder(const std::string& make, 
 
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                                                  uint32_t     extendedTag,
 
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                                                  uint16_t     group);
 
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    private:
 
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        static const TiffDecoderInfo tiffDecoderInfo_[]; //<! TIFF decoder table
 
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    }; // class TiffDecoder
 
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}                                       // namespace Exiv2
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#endif                                  // #ifndef TIFFPARSER_HPP_