OssDriver.h

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2024 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * 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.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see https://www.gnu.org/licenses
 *
 */
 
#ifndef OSS_AUDIO_DRIVER_H
#define OSS_AUDIO_DRIVER_H
 
#include <core/IO/AudioOutput.h>
#include <core/IO/NullDriver.h>
 
// check if OSS support is enabled
#if defined(H2CORE_HAVE_OSS) || _DOXYGEN_
 
 
#ifdef __NetBSD__
#include <soundcard.h>
#else
#include <sys/soundcard.h>
#endif
#include <sys/ioctl.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <iostream>
#include <unistd.h>
#include <inttypes.h>
 
#include <core/Globals.h>
 
/*
#ifdef __NetBSD__
        #define AUDIO_DEVICE "/dev/audio"
#else
        #define AUDIO_DEVICE "/dev/dsp"
#endif
*/
 
namespace H2Core
{
 
 
class OssDriver : public Object<OssDriver>, public AudioOutput
{
        H2_OBJECT(OssDriver)
public:
        OssDriver( audioProcessCallback processCallback );
        ~OssDriver();
 
        int init( unsigned bufferSize );
        int connect();
        void disconnect();
 
        void write();
        unsigned getBufferSize();
        unsigned getSampleRate();
        float* getOut_L();
        float* getOut_R();
 
private:
        int fd;
 
        short* audioBuffer;
        float* out_L;
        float* out_R;
 
        audioProcessCallback processCallback;
        int log2( int n );
 
};
 
#else
 
namespace H2Core {
 
class OssDriver : public Object<OssDriver>, public NullDriver
{
        H2_OBJECT(OssDriver)
public:
        OssDriver( audioProcessCallback processCallback ) : NullDriver( processCallback ) {}
 
};
 
 
 
#endif // OSS support
 
};
 
#endif