jamulus/src/soundbase.h

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/******************************************************************************\
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* Copyright (c) 2004-2020
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*
* Author(s):
* Volker Fischer
*
******************************************************************************
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
\******************************************************************************/
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#pragma once
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#include <QThread>
#include <QString>
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#ifndef HEADLESS
# include <QMessageBox>
#endif
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#include "global.h"
#include "util.h"
// TODO better solution with enum definition
// problem: in signals it seems not to work to use CSoundBase::ESndCrdResetType
enum ESndCrdResetType
{
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RS_ONLY_RESTART = 1,
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RS_ONLY_RESTART_AND_INIT,
RS_RELOAD_RESTART_AND_INIT
};
/* Classes ********************************************************************/
class CSoundBase : public QThread
{
Q_OBJECT
public:
CSoundBase ( const QString& strNewSystemDriverTechniqueName,
const bool bNewIsCallbackAudioInterface,
void (*fpNewProcessCallback) ( CVector<int16_t>& psData, void* pParg ),
void* pParg,
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const int iNewCtrlMIDIChannel );
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virtual int Init ( const int iNewPrefMonoBufferSize );
virtual void Start();
virtual void Stop();
// device selection
virtual int GetNumDev() { return lNumDevs; }
virtual QString GetDeviceName ( const int iDiD ) { return strDriverNames[iDiD]; }
virtual QString SetDev ( const int );
virtual int GetDev() { return lCurDev; }
virtual int GetNumInputChannels() { return 2; }
virtual QString GetInputChannelName ( const int ) { return "Default"; }
virtual void SetLeftInputChannel ( const int ) {}
virtual void SetRightInputChannel ( const int ) {}
virtual int GetLeftInputChannel() { return 0; }
virtual int GetRightInputChannel() { return 1; }
virtual int GetNumOutputChannels() { return 2; }
virtual QString GetOutputChannelName ( const int ) { return "Default"; }
virtual void SetLeftOutputChannel ( const int ) {}
virtual void SetRightOutputChannel ( const int ) {}
virtual int GetLeftOutputChannel() { return 0; }
virtual int GetRightOutputChannel() { return 1; }
virtual double GetInOutLatencyMs() { return 0.0; } // "0.0" means no latency is available
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virtual void OpenDriverSetup() {}
bool IsRunning() const { return bRun; }
// TODO this should be protected but since it is used
// in a callback function it has to be public -> better solution
void EmitReinitRequestSignal ( const ESndCrdResetType eSndCrdResetType )
{ emit ReinitRequest ( eSndCrdResetType ); }
void EmitControllerInFaderLevel ( const int iChannelIdx,
const int iValue ) { emit ControllerInFaderLevel ( iChannelIdx, iValue ); }
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protected:
// driver handling
virtual QString LoadAndInitializeDriver ( int, bool ) { return ""; }
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virtual void UnloadCurrentDriver() {}
QVector<QString> LoadAndInitializeFirstValidDriver ( const bool bOpenDriverSetup = false );
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static void GetSelCHAndAddCH ( const int iSelCH, const int iNumInChan,
int& iSelCHOut, int& iSelAddCHOut )
{
// we have a mixed channel setup, definitions:
// - mixed channel setup only for 4 physical inputs:
// SelCH == 4: Ch 0 + Ch 2
// SelCh == 5: Ch 0 + Ch 3
// SelCh == 6: Ch 1 + Ch 2
// SelCh == 7: Ch 1 + Ch 3
if ( iSelCH >= iNumInChan )
{
iSelAddCHOut = ( ( iSelCH - iNumInChan ) % 2 ) + 2;
iSelCHOut = ( iSelCH - iNumInChan ) / 2;
}
else
{
iSelAddCHOut = INVALID_INDEX; // set it to an invalid number
iSelCHOut = iSelCH;
}
}
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// function pointer to callback function
void (*fpProcessCallback) ( CVector<int16_t>& psData, void* arg );
void* pProcessCallbackArg;
// callback function call for derived classes
void ProcessCallback ( CVector<int16_t>& psData )
{
(*fpProcessCallback) ( psData, pProcessCallbackArg );
}
// these functions should be overwritten by derived class for
// non callback based audio interfaces
virtual bool Read ( CVector<int16_t>& ) { printf ( "no sound!" ); return false; }
virtual bool Write ( CVector<int16_t>& ) { printf ( "no sound!" ); return false; }
void run();
bool bRun;
void ParseMIDIMessage ( const CVector<uint8_t>& vMIDIPaketBytes );
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bool bIsCallbackAudioInterface;
QString strSystemDriverTechniqueName;
int iCtrlMIDIChannel;
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CVector<int16_t> vecsAudioSndCrdStereo;
long lNumDevs;
long lCurDev;
QString strDriverNames[MAX_NUMBER_SOUND_CARDS];
signals:
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void ReinitRequest ( int iSndCrdResetType );
void ControllerInFaderLevel ( int iChannelIdx, int iValue );
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};