-//
-// midi-def.cc -- implement midi output
-//
-// source file of the LilyPond music typesetter
-//
-// (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
+/*
+ midi-def.cc -- implement Midi_def
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
+
+*/
#include <math.h>
#include "misc.hh"
#include "midi-def.hh"
+#include "translator.hh"
+#include "performance.hh"
+#include "score-performer.hh"
#include "debug.hh"
// classes, alphasorted
// destructor
// routines, alphasorted
-// statics Midi_def
-// ugh
-int Midi_def::den_i_s = 4;
-int Midi_def::num_i_s = 4;
-
Midi_def::Midi_def()
{
- set_tempo( Moment( 1, 4 ), 60 );
- outfile_str_ = "lelie.midi";
-}
-
-Midi_def::Midi_def( Midi_def const& midi_c_r )
-{
- whole_seconds_f_ = midi_c_r.whole_seconds_f_;
- outfile_str_ = midi_c_r.outfile_str_;
+ // ugh
+ set_tempo (Moment (1, 4), 60);
}
Midi_def::~Midi_def()
}
Real
-Midi_def::duration_to_seconds_f( Moment moment )
+Midi_def::length_mom_to_seconds_f (Moment mom)
{
- if (!moment)
- return 0;
-
- return Moment( whole_seconds_f_ ) * moment;
+ if (!mom)
+ return 0;
+
+ 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
- mtor << "Midi {4/min: " << Real( 60 ) / ( whole_seconds_f_ * 4 );
- mtor << "out: " << outfile_str_;
- mtor << "}\n";
+ DEBUG_OUT << "MIDI {\n";
+ Music_output_def::print ();
+ DEBUG_OUT << "4/min: " << Moment (60) / (whole_in_seconds_mom_ * Moment (4));
+ DEBUG_OUT << "}\n";
#endif
}
+int Midi_def::default_count_i_=0;
+
+int
+Midi_def::get_next_default_count () const
+{
+ 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;
}