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73 lines
1.8 KiB
73 lines
1.8 KiB
15 years ago
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/*
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Copyright (C) 2001 Stefan Westerfeld
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stefan@space.twc.de
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library 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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This library 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include "artsmidi.h"
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#include "debug.h"
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#include "miditimercommon.h"
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#include "math.h"
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#undef DEBUG_JITTER
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using namespace std;
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using namespace Arts;
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MidiTimerCommon::MidiTimerCommon() :refCount(0)
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{
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refCount = 0;
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}
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MidiTimerCommon::~MidiTimerCommon()
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{
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arts_assert(refCount == 0);
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}
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void MidiTimerCommon::processQueue()
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{
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TimeStamp now = time();
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list<TSNote>::iterator n = noteQueue.begin();
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while(n != noteQueue.end())
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{
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TSNote& note = *n;
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TimeStamp& noteTime = note.event.time;
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if( now.sec > noteTime.sec
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|| ((now.sec == noteTime.sec) && (now.usec > noteTime.usec)))
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{
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#ifdef DEBUG_JITTER
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float jitter = (now.sec-noteTime.sec) * 1000.0;
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jitter += (float)(now.usec-noteTime.usec) / 1000.0;
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arts_debug("midi jitter: %f",jitter);
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#endif
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note.port.processCommand(note.event.command);
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n = noteQueue.erase(n);
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}
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else n++;
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}
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}
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void MidiTimerCommon::queueEvent(MidiPort port,const MidiEvent& event)
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{
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noteQueue.push_back(TSNote(port, event));
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}
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