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//=========================================================
// MusE
// Linux Music Editor
// software synthesizer helper library
// $Id: mono.cpp,v 1.2 2004/04/15 13:46:18 wschweer Exp $
//
// (C) Copyright 2004 Werner Schweer (ws@seh.de)
//=========================================================
#include "mono.h"
//---------------------------------------------------------
// playNote
//---------------------------------------------------------
bool MessMono::playNote(int channel, int pitch, int velo)
{
if (velo == 0) {
if (pitchStack.empty())
return false;
if (pitchStack.back().pitch == pitch) {
pitchStack.pop_back();
if (pitchStack.empty()) {
note(channel, pitch, 0);
return false;
}
PitchVelo pv = pitchStack.back();
note(pv.channel, pv.pitch, pv.velo); // change pitch
return false;
}
for (std::list<PitchVelo>::iterator i = pitchStack.begin();
i != pitchStack.end(); ++i) {
if ((*i).pitch == pitch) {
pitchStack.erase(i);
return false;
}
}
// no noteon found
// emergency stop:
note(channel, pitch, velo);
return false;
}
pitchStack.push_back(PitchVelo(channel, pitch, velo));
note(channel, pitch, velo);
return false;
}
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