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diff --git a/attic/muse_qt4_evolution/muse/midififo.h b/attic/muse_qt4_evolution/muse/midififo.h
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+//=============================================================================
+// MusE
+// Linux Music Editor
+// $Id:$
+//
+// Copyright (C) 2002-2006 by Werner Schweer and others
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2.
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//=============================================================================
+
+#ifndef __MIDIFIFO_H__
+#define __MIDIFIFO_H__
+
+#include "midievent.h"
+#include "port.h"
+
+#define MIDI_FIFO_SIZE 512
+
+//---------------------------------------------------------
+// MidiFifo
+//---------------------------------------------------------
+
+class MidiFifo {
+ MidiEvent fifo[MIDI_FIFO_SIZE];
+ volatile int size;
+ int wIndex;
+ int rIndex;
+
+ public:
+ MidiFifo() { clear(); }
+ bool put(const MidiEvent& event); // returns true on fifo overflow
+ MidiEvent get();
+ const MidiEvent& peek(int n = 0);
+ void remove();
+ bool isEmpty() const { return size == 0; }
+ void clear() { size = 0, wIndex = 0, rIndex = 0; }
+ int getSize() const { return size; }
+ };
+
+//---------------------------------------------------------
+// MidiOutEvent
+//---------------------------------------------------------
+
+struct MidiOutEvent {
+ Port port;
+ MidiEvent event;
+
+ MidiOutEvent() {}
+ MidiOutEvent(const Port& p, const MidiEvent& e)
+ : port(p), event(e) {}
+ bool operator<(const MidiOutEvent& e) const {
+ if (port == e.port)
+ return event < e.event;
+ return event < e.event;
+ }
+ };
+
+typedef std::multiset<MidiOutEvent, std::less<MidiOutEvent> > MidiOutEventList;
+typedef MidiOutEventList::iterator iMidiOutEvent;
+typedef MidiOutEventList::const_iterator ciMidiOutEvent;
+
+//---------------------------------------------------------
+// MidiOutFifo
+//---------------------------------------------------------
+
+class MidiOutFifo {
+ MidiOutEvent fifo[MIDI_FIFO_SIZE];
+ volatile int size;
+ int wIndex;
+ int rIndex;
+
+ public:
+ MidiOutFifo() { clear(); }
+ bool put(const MidiOutEvent& event); // returns true on fifo overflow
+ MidiOutEvent get();
+ bool isEmpty() const { return size == 0; }
+ void clear() { size = 0, wIndex = 0, rIndex = 0; }
+ };
+
+
+#endif
+