source file of the GNU LilyPond music typesetter
- (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
+ (c) 1997--1998 Jan Nieuwenhuizen <jan@digicash.com>
*/
#include <math.h>
Midi_def::Midi_def()
{
- outfile_str_ = "";
// ugh
set_tempo (Moment (1, 4), 60);
}
-Midi_def::Midi_def (Midi_def const& s)
- : Music_output_def (s)
-{
- whole_seconds_f_ = s.whole_seconds_f_;
- outfile_str_ = s.outfile_str_;
-}
-
Midi_def::~Midi_def()
{
}
Midi_def::duration_to_seconds_f (Moment mom)
{
if (!mom)
- return 0;
+ return 0;
- return Moment (whole_seconds_f_) * mom;
+ return Moment (whole_in_seconds_mom_) * mom;
}
-
int
-Midi_def::get_tempo_i (Moment moment)
+Midi_def::get_tempo_i (Moment one_beat_mom)
+{
+ Moment wholes_per_min = Moment(60) /Moment(whole_in_seconds_mom_);
+ int beats_per_min = wholes_per_min / one_beat_mom;
+ return int (beats_per_min);
+}
+
+void
+Midi_def::set_tempo (Moment one_beat_mom, int beats_per_minute_i)
{
- return Moment (whole_seconds_f_) * Moment (60) * moment;
+ Moment beats_per_second = Moment (beats_per_minute_i) / Moment (60);
+ whole_in_seconds_mom_ = Moment(1)/Moment(beats_per_second * one_beat_mom);
}
void
Midi_def::print() const
{
#ifndef NPRINT
+ Music_output_def::print ();
DOUT << "Midi {";
- DOUT << "4/min: " << Real (60) / (whole_seconds_f_ * 4);
- DOUT << "out: " << outfile_str_;
+ DOUT << "4/min: " << Moment (60) / (whole_in_seconds_mom_ * Moment (4));
DOUT << "}\n";
#endif
}
-void
-Midi_def::set_tempo (Moment moment, int count_per_minute_i)
+IMPLEMENT_IS_TYPE_B1(Midi_def, Music_output_def);
+
+int Midi_def::default_count_i_=0;
+int
+Midi_def::get_next_default_count () const
{
- whole_seconds_f_ = Moment (count_per_minute_i) / Moment (60) / moment;
+ return default_count_i_++;
}
-
-IMPLEMENT_IS_TYPE_B1( Midi_def, Music_output_def);