OssMultiEngine.h

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/*
   ZynAddSubFX - a software synthesizer
 
   OssMultiEngine.h - Multi channel audio output for Open Sound System
   Copyright (C) 2014 Hans Petter Selasky
 
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.
*/
 
#ifndef OSS_MULTI_ENGINE_H
#define OSS_MULTI_ENGINE_H
 
#include <sys/time.h>
#include "../globals.h"
#include "AudioOut.h"
 
namespace zyncarla {
 
class OssMultiEngine : public AudioOut
{
    public:
        OssMultiEngine(const SYNTH_T &synth,
                       const class oss_devs_t& oss_devs);
        ~OssMultiEngine();
 
        bool Start();
        void Stop();
 
        void setAudioEn(bool nval);
        bool getAudioEn() const;
 
    protected:
        void *audioThreadCb();
        static void *_audioThreadCb(void *arg);
 
    private:
        pthread_t audioThread;
 
        /* Audio */
        bool openAudio();
        void stopAudio();
 
        int handle;
        int maxbuffersize;
        int buffersize;
        int channels;
 
        union {
            /* Samples to be sent to soundcard */
            short int *ps16;
            int *ps32;
        } smps;
 
        /* peak values used for compressor */
        float *peaks;
 
        bool en;
        bool is32bit;
 
        const char* linux_oss_wave_out_dev;
};
 
}
 
#endif