source file of the GNU LilyPond music typesetter
- (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
+ (c) 1997--2000 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include <math.h>
#include "misc.hh"
#include "midi-def.hh"
-#include "input-translator.hh"
-#include "performer-group-performer.hh"
-#include "assoc-iter.hh"
-
+#include "performance.hh"
#include "debug.hh"
-
-// classes, alphasorted
-// statics
-// constructors
-// destructor
-// routines, alphasorted
-
-// statics Midi_def
-// ugh
-
-int Midi_def::den_i_s = 4;
-int Midi_def::num_i_s = 4;
+#include "scope.hh"
Midi_def::Midi_def()
{
- outfile_str_ = "";
- itrans_p_ = 0;
- // ugh
- set_tempo( Moment( 1, 4 ), 60 );
-}
-
-Midi_def::Midi_def( Midi_def const& s )
-{
- whole_seconds_f_ = s.whole_seconds_f_;
- itrans_p_ = s.itrans_p_ ? new Input_translator( *s.itrans_p_ ) : 0;
- outfile_str_ = s.outfile_str_;
+ // ugh
+ set_tempo (Moment (1, 4), 60);
}
Midi_def::~Midi_def()
{
- delete itrans_p_;
}
-Real
-Midi_def::duration_to_seconds_f( Moment mom )
-{
- if ( !mom )
- return 0;
-
- return Moment( whole_seconds_f_ ) * mom;
-}
-Global_translator*
-Midi_def::get_global_translator_p() const
-{
- return itrans_p_->get_group_performer_p()->global_l();
-}
int
-Midi_def::get_tempo_i( Moment moment )
+Midi_def::get_tempo_i (Moment one_beat_mom)
{
- return Moment( whole_seconds_f_ ) * Moment( 60 ) * moment;
+ Moment w = *unsmob_moment (scope_p_->scm_elem ("whole-in-seconds"));
+ Moment wholes_per_min = Moment(60) /w;
+ int beats_per_min = wholes_per_min / one_beat_mom;
+ return int (beats_per_min);
}
void
-Midi_def::print() const
+Midi_def::set_tempo (Moment one_beat_mom, int beats_per_minute_i)
{
-#ifndef NPRINT
- mtor << "Midi {";
- mtor << "4/min: " << Real( 60 ) / ( whole_seconds_f_ * 4 );
- mtor << "out: " << outfile_str_;
- mtor << "}\n";
-#endif
+ Moment beats_per_second = Moment (beats_per_minute_i) / Moment (60);
+
+ Moment m = Moment(1)/Moment(beats_per_second * one_beat_mom);
+ scope_p_->set ("whole-in-seconds", m.make_scm());
}
-void
-Midi_def::set( Input_translator* itrans_p )
+
+int Midi_def::default_count_i_=0;
+
+int
+Midi_def::get_next_default_count () const
{
- delete itrans_p_;
- itrans_p_ = itrans_p;
+ return default_count_i_++;
}
void
-Midi_def::set_tempo( Moment moment, int count_per_minute_i )
+Midi_def::reset_default_count ()
{
- whole_seconds_f_ = Moment( count_per_minute_i ) / Moment( 60 ) / moment;
+ default_count_i_ = 0;
}
-