new branch muse2, first checkin

1 files changed, 47 insertions, 0 deletions

diff --git a/muse2/synti/libsynti/mono.cpp b/muse2/synti/libsynti/mono.cpp
new file mode 100644
index 00000000..14a23aca
--- /dev/null
+++ b/muse2/synti/libsynti/mono.cpp
@@ -0,0 +1,47 @@
+//=========================================================
+//  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;
+      }
+