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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)
//
// 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; 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.
//
//=========================================================
#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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