new branch muse2, first checkin

1 files changed, 89 insertions, 0 deletions

diff --git a/muse2/muse/tempo.h b/muse2/muse/tempo.h
new file mode 100644
index 00000000..61ec50f5
--- /dev/null
+++ b/muse2/muse/tempo.h
@@ -0,0 +1,89 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//  $Id: tempo.h,v 1.2.2.1 2006/09/19 19:07:09 spamatica Exp $
+//
+//  (C) Copyright 1999/2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#ifndef __TEMPO_H__
+#define __TEMPO_H__
+
+#include <map>
+
+#ifndef MAX_TICK
+#define MAX_TICK (0x7fffffff/100)
+#endif
+
+class Xml;
+
+//---------------------------------------------------------
+//   Tempo Event
+//---------------------------------------------------------
+
+struct TEvent {
+      int tempo;
+      unsigned tick;    // new tempo at tick
+      unsigned frame;   // precomputed time for tick in sec
+
+      int read(Xml&);
+      void write(int, Xml&, int) const;
+
+      TEvent() { }
+      TEvent(unsigned t, unsigned tk) {
+            tempo = t;
+            tick  = tk;
+            frame = 0;
+            }
+      };
+
+//---------------------------------------------------------
+//   TempoList
+//---------------------------------------------------------
+
+typedef std::map<unsigned, TEvent*, std::less<unsigned> > TEMPOLIST;
+typedef TEMPOLIST::iterator iTEvent;
+typedef TEMPOLIST::const_iterator ciTEvent;
+typedef TEMPOLIST::reverse_iterator riTEvent;
+typedef TEMPOLIST::const_reverse_iterator criTEvent;
+
+class TempoList : public TEMPOLIST {
+      int _tempoSN;           // serial no to track tempo changes
+      bool useList;
+      int _tempo;             // tempo if not using tempo list
+      int _globalTempo;       // %percent 50-200%
+
+      void normalize();
+      void add(unsigned tick, int tempo);
+      void change(unsigned tick, int newTempo);
+      void del(iTEvent);
+      void del(unsigned tick);
+
+   public:
+      TempoList();
+      void clear();
+
+      void read(Xml&);
+      void write(int, Xml&) const;
+      void dump() const;
+
+      int tempo(unsigned tick) const;
+      unsigned tick2frame(unsigned tick, unsigned frame, int* sn) const;
+      unsigned tick2frame(unsigned tick, int* sn = 0) const;
+      unsigned frame2tick(unsigned frame, int* sn = 0) const;
+      unsigned frame2tick(unsigned frame, unsigned tick, int* sn) const;
+      unsigned deltaTick2frame(unsigned tick1, unsigned tick2, int* sn = 0) const;
+      unsigned deltaFrame2tick(unsigned frame1, unsigned frame2, int* sn = 0) const;
+      
+      int tempoSN() const { return _tempoSN; }
+      void setTempo(unsigned tick, int newTempo);
+      void addTempo(unsigned t, int tempo);
+      void delTempo(unsigned tick);
+      void changeTempo(unsigned tick, int newTempo);
+      bool setMasterFlag(unsigned tick, bool val);
+      int globalTempo() const           { return _globalTempo; }
+      void setGlobalTempo(int val);
+      };
+
+extern TempoList tempomap;
+#endif