1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
//=============================================================================
// AL
// Audio Utility Library
// $Id:$
//
// 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 __TEMPO_H__
#define __TEMPO_H__
namespace AL {
#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(QDomNode);
void write(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(QDomNode);
void write(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;
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
|
