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authorRobert Jonsson <spamatica@gmail.com>2011-03-07 19:01:11 +0000
committerRobert Jonsson <spamatica@gmail.com>2011-03-07 19:01:11 +0000
commite40fc849149dd97c248866a4a1d026dda5e57b62 (patch)
treeb12b358f3b3a0608001d30403358f8443118ec5f /attic/muse_qt4_evolution/synti/libsynti/mono.cpp
parent1bd4f2e8d9745cabb667b043171cad22c8577768 (diff)
clean3
Diffstat (limited to 'attic/muse_qt4_evolution/synti/libsynti/mono.cpp')
-rw-r--r--attic/muse_qt4_evolution/synti/libsynti/mono.cpp47
1 files changed, 47 insertions, 0 deletions
diff --git a/attic/muse_qt4_evolution/synti/libsynti/mono.cpp b/attic/muse_qt4_evolution/synti/libsynti/mono.cpp
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+++ b/attic/muse_qt4_evolution/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;
+ }
+