VRS - The Virtual Rendering System

version 3.3

oggsoundstreamal.h

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/******************************************************************************
 * VRS - The Virtual Rendering System
 * Copyright (C) 2003 Computer Graphics Systems Group at the 
 * Hasso-Plattner-Institute (HPI), Potsdam, Germany.
 *
 * This  library  is  free  software; you can redistribute it and/or  modify it
 * under the terms of the GNU Lesser General Public  License  as  published  by
 * the  Free  Software  Foundation;  either  version 2.1 of the License, or (at
 * your option) any later version. 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 FreeSoftware Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA, 02111-1307, USA.
 ******************************************************************************/

#ifndef VRS_SOUND_OGGSOUNDSTREAMAL_H
#define VRS_SOUND_OGGSOUNDSTREAMAL_H

//
// SOUND
//
#include <vrs/openal/erroral.h>
#include <vrs/openal/soundstreamal.h>
#include <vrs/openal/bufferal.h>
#include <vrs/openal/memorydataal.h>


struct vorbis_info;
struct vorbis_comment;
struct OggVorbis_File;


namespace VRS
{
    namespace SOUND
    {
        class VRS_OPENAL_API OGGSoundStreamAL : public SoundStreamAL
        {

        private:
            // Pimpl:
            struct OggStreamWrapper
            {
                OggStreamWrapper();
                ~OggStreamWrapper();
                OggVorbis_File* m_oggStream;
            };

        public:

            OGGSoundStreamAL(const std::string fileName,
                             SO<SourceAL> source = 0,
                             unsigned int bufferSize = 32768,
                             bool loopMode = false,
                             bool enabled = true);

            virtual ~OGGSoundStreamAL(void);

            virtual bool create(void);
            virtual bool update(void);
            virtual void release(void);

            VRS_TYPEINFO(OGGSoundStreamAL, SoundStreamAL);
            VRS_SERIALIZABLE(OGGSoundStreamAL);

        protected:

            OGGSoundStreamAL(void);

        private:

            bool stream(SO<BufferAL> buffer);

            void display(void);

            SO<BufferAL>                backBuffer_;
            SO<BufferAL>                frontBuffer_;

            SO<MemoryDataAL>            backBufferData_;
            SO<MemoryDataAL>            frontBufferData_;

            BufferDataAL::DataFormat    format_;

            //
            // OGG Specific
            //
            FILE*           oggFile;       // file handle
            OggStreamWrapper oggStream;     // stream handle
            vorbis_info*    vorbisInfo;    // some formatting data
            vorbis_comment* vorbisComment; // user comments

        };//endclass OGGSoundStreamAL

    };//endnamespace SOUND

};//endnamespace VRS

#endif //VRS_SOUND_OGGSOUNDSTREAMAL_H

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