sgi_audiodrv.h

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//
// 1997/09/27 21:38:01
//

#ifndef AUDIODRV_H
#define AUDIODRV_H


#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <audio.h>
#include <dmedia/audio.h>

#include "mytypes.h"
#include "emucfg.h"

class audioDriver
{
        
 public:  // --------------------------------------------------------- public
  
        bool IsThere();
        
        bool Open(udword freq, int precision, int channels,
                          int fragments, int fragBase);
        
        void Close();
        
        void Play(ubyte* buffer, int bufferSize);

        bool Reset()
        {
                return false;  // not available
        }
        
        int GetAudioHandle()
        {
                return audioHd;
        }
        
        udword GetFrequency()
    { 
                return frequency;
    }
        
        int GetChannels()
    {
                return channels;
    }
        
        int GetSamplePrecision()
    {
                return precision;
    }
        
        int GetSampleEncoding()
    {
                return encoding;
    }
        
        int GetBlockSize()
        {
                return blockSize;
        }
        
        int GetFragments()
    {
                return 1;  //fragments;
    }
        
        int GetFragSizeBase()
        {
                return 0;  //fragSizeBase;
        }
        
        const char* GetErrorString()
        {
                return errorString;
        }
                        
 private:  // ------------------------------------------------------- private

        ALport audio;
        ALconfig config;
        
        const char* errorString;

        int blockSize;
        
        udword frequency;
        
        // These are constants/enums from ``libsidplay/include/emucfg.h''.
        int encoding;
        int precision;
        int channels;
};


#endif  // AUDIODRV_H

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