mirror of
https://github.com/LMMS/lmms.git
synced 2026-03-11 02:26:19 -04:00
55337ad2be
Renamed all MIDI and audio related classes/files to match new style.
Additionally various cleanups.
(cherry picked from commit b8ebfbd06a)
123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
/*
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* AudioDummy.h - dummy audio-device
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*
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* Copyright (c) 2004-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _AUDIO_DUMMY_H
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#define _AUDIO_DUMMY_H
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#include "AudioDevice.h"
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#include "Cpu.h"
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#include "MicroTimer.h"
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class AudioDummy : public AudioDevice, public QThread
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{
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public:
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AudioDummy( bool & _success_ful, mixer * _mixer ) :
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AudioDevice( DEFAULT_CHANNELS, _mixer )
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{
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_success_ful = true;
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}
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virtual ~AudioDummy()
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{
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stopProcessing();
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}
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inline static QString name()
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{
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return QT_TRANSLATE_NOOP( "setupWidget", "Dummy (no sound output)" );
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}
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class setupWidget : public AudioDevice::setupWidget
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{
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public:
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setupWidget( QWidget * _parent ) :
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AudioDevice::setupWidget( AudioDummy::name(), _parent )
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{
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}
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virtual ~setupWidget()
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{
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}
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virtual void saveSettings()
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{
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}
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virtual void show()
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{
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parentWidget()->hide();
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QWidget::show();
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}
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} ;
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private:
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virtual void startProcessing()
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{
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start();
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}
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virtual void stopProcessing()
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{
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if( isRunning() )
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{
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wait( 1000 );
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terminate();
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}
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}
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virtual void run()
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{
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MicroTimer timer;
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while( true )
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{
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timer.reset();
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surroundSampleFrame * b =
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getMixer()->nextBuffer();
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if( !b )
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{
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break;
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}
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CPU::freeFrames( b );
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const Sint32 microseconds = static_cast<Sint32>(
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getMixer()->framesPerPeriod() *
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1000000.0f /
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getMixer()->processingSampleRate() -
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timer.elapsed() );
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if( microseconds > 0 )
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{
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usleep( microseconds );
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}
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}
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}
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} ;
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#endif
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