109 lines
3.5 KiB
C++
Executable file
109 lines
3.5 KiB
C++
Executable file
/******************************************************************************\
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* Copyright (c) 2004-2020
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*
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* Author(s):
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* Volker Fischer
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*
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******************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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\******************************************************************************/
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#pragma once
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#ifndef JACK_REPLACES_ASIO // these headers are not available in Windows OS
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# include <unistd.h>
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# include <sys/ioctl.h>
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#endif
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#include <fcntl.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <QThread>
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#include <string.h>
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#include "util.h"
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#include "soundbase.h"
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#include "global.h"
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#if WITH_SOUND
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# include <jack/jack.h>
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# include <jack/midiport.h>
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#endif
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/* Definitions ****************************************************************/
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#define NUM_IN_OUT_CHANNELS 2 // always stereo
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// the number of periods is critical for latency
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#define NUM_PERIOD_BLOCKS_IN 2
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#define NUM_PERIOD_BLOCKS_OUT 1
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#define MAX_SND_BUF_IN 200
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#define MAX_SND_BUF_OUT 200
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/* Classes ********************************************************************/
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#if WITH_SOUND
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class CSound : public CSoundBase
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{
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public:
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CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ),
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void* arg,
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const int iCtrlMIDIChannel,
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const bool bNoAutoJackConnect ) :
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CSoundBase ( "Jack", true, fpNewProcessCallback, arg, iCtrlMIDIChannel, bNoAutoJackConnect ), iJACKBufferSizeMono ( 0 ),
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iJACKBufferSizeStero ( 0 ) { OpenJack(); }
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virtual ~CSound() { CloseJack(); }
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virtual int Init ( const int iNewPrefMonoBufferSize );
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virtual void Start();
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virtual void Stop();
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// these variables should be protected but cannot since we want
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// to access them from the callback function
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CVector<short> vecsTmpAudioSndCrdStereo;
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int iJACKBufferSizeMono;
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int iJACKBufferSizeStero;
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jack_port_t* input_port_left;
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jack_port_t* input_port_right;
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jack_port_t* output_port_left;
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jack_port_t* output_port_right;
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jack_port_t* input_port_midi;
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protected:
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void OpenJack();
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void CloseJack();
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// callbacks
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static int process ( jack_nframes_t nframes, void* arg );
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static int bufferSizeCallback ( jack_nframes_t, void *arg );
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static void shutdownCallback ( void* );
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jack_client_t* pJackClient;
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};
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#else
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// no sound -> dummy class definition
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class CSound : public CSoundBase
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{
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public:
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CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* pParg ),
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void* pParg,
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const int iCtrlMIDIChannel,
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const bool bNoAutoJackConnect ) :
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CSoundBase ( "nosound", false, fpNewProcessCallback, pParg, iCtrlMIDIChannel, bNoAutoJackConnect ) {}
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virtual ~CSound() {}
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};
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#endif // WITH_SOUND
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