client/compressor.h

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/* Copyright (c) 2009, Cedric Stalder <cedric.stalder@gmail.com> 
 *               2009, Stefan Eilemann <eile@equalizergraphics.com>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *  
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef EQ_COMPRESSOR_H
#define EQ_COMPRESSOR_H

#include <eq/plugins/compressor.h> // member
#include <eq/client/types.h>
#include <eq/base/dso.h>           // member

namespace eq
{
    class Compressor
    {
    public:
        typedef size_t ( *GetNumCompressors_t ) ();
        typedef void   ( *GetInfo_t ) ( const size_t, EqCompressorInfo* const );
        typedef void*  ( *NewCompressor_t ) ( const unsigned );
        typedef void   ( *DeleteCompressor_t ) ( void* const );
        typedef void*  ( *NewDecompressor_t ) ( const unsigned );
        typedef void   ( *DeleteDecompressor_t ) ( void* const );
        typedef void   ( *Compress_t ) ( void* const, const unsigned, 
                                         void* const, const uint64_t*,
                                         const uint64_t );
        typedef size_t ( *GetNumResults_t ) ( void* const, const unsigned );
        typedef void   ( *GetResult_t ) ( void* const, const unsigned, 
                                          const unsigned, void** const, 
                                          uint64_t* const );
        typedef void   ( *Decompress_t ) ( void* const, const unsigned,
                                           const void* const*,
                                           const uint64_t* const,
                                           const unsigned, void* const, 
                                           uint64_t* const, 
                                           const uint64_t );

        Compressor(){}

        bool init( const std::string& libraryName );
      
        void exit();

        NewCompressor_t newCompressor;
        
        NewDecompressor_t    newDecompressor;
       
        DeleteCompressor_t   deleteCompressor;
        
        DeleteDecompressor_t deleteDecompressor;
      
        Compress_t       compress;

        Decompress_t     decompress;
      
        GetNumResults_t  getNumResults;

        GetNumCompressors_t  getNumCompressors;

        GetResult_t   getResult;
      
        bool implementsType( const uint32_t name );

        const CompressorInfoVector& getInfos() const { return _infos; }

    private:
        CompressorInfoVector _infos;
        base::DSO _dso;   
    };

    EQ_EXPORT std::ostream& operator << ( std::ostream&, 
                                          const EqCompressorInfo& );
}

#endif //EQ_COMPRESSOR_H