diff options
author | Robert Jonsson <spamatica@gmail.com> | 2010-10-13 19:34:22 +0000 |
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committer | Robert Jonsson <spamatica@gmail.com> | 2010-10-13 19:34:22 +0000 |
commit | 8a2c2824a59d7644e13bc52c9a0ecbd641f21f95 (patch) | |
tree | 064ad3f2bf8daab0ad27b128abd86a9bbdb1e496 /muse2/muse/tempo.h | |
parent | a27706d9629e8b592cca4659f865b70adef24e6d (diff) |
new branch muse2, first checkin
Diffstat (limited to 'muse2/muse/tempo.h')
-rw-r--r-- | muse2/muse/tempo.h | 89 |
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 |