-//
-// midi-def.cc -- implement midi output
-//
-// source file of the GNU 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--1998 Jan Nieuwenhuizen <janneke@gnu.org>
+
+*/
#include <math.h>
#include "misc.hh"
#include "midi-def.hh"
-#include "input-performer.hh"
-#include "performer-group-performer.hh"
+#include "translator.hh"
+#include "performance.hh"
#include "assoc-iter.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()
{
- outfile_str_ = "lelie.midi";
- iperf_p_ = 0;
- real_vars_p_ = new Assoc<String,Real>;
- // ugh
- set_tempo( Moment( 1, 4 ), 60 );
-}
-
-Midi_def::Midi_def( Midi_def const& s )
-{
- whole_seconds_f_ = s.whole_seconds_f_;
- iperf_p_ = s.iperf_p_ ? new Input_performer( *s.iperf_p_ ) : 0;
- real_vars_p_ = new Assoc<String,Real> ( *s.real_vars_p_ );
- outfile_str_ = s.outfile_str_;
+ // ugh
+ set_tempo (Moment (1, 4), 60);
}
Midi_def::~Midi_def()
{
- delete iperf_p_;
- delete real_vars_p_;
}
Real
-Midi_def::duration_to_seconds_f( Moment mom )
+Midi_def::duration_to_seconds_f (Moment mom)
{
- if ( !mom )
- return 0;
-
- return Moment( whole_seconds_f_ ) * mom;
+ if (!mom)
+ return 0;
+
+ return Moment (whole_in_seconds_mom_) * mom;
}
-Global_translator*
-Midi_def::get_global_translator_p() const
-{
- return iperf_p_->get_group_performer_p()->global_l();
-}
-Real
-Midi_def::get_var( String s ) const
+int
+Midi_def::get_tempo_i (Moment one_beat_mom)
{
- if ( !real_vars_p_->elt_b( s ) )
- error ( "unknown midi variable `" + s + "'" );
- return real_vars_p_->elem( s );
+ 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);
}
-int
-Midi_def::get_tempo_i( Moment moment )
+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 {";
- mtor << "4/min: " << Real( 60 ) / ( whole_seconds_f_ * 4 );
- mtor << "out: " << outfile_str_;
- for (Assoc_iter<String,Real> i( *real_vars_p_ ); i.ok(); i++) {
- mtor << i.key() << "= " << i.val() << "\n";
- }
- mtor << "}\n";
+ Music_output_def::print ();
+ DOUT << "Midi {";
+ DOUT << "4/min: " << Moment (60) / (whole_in_seconds_mom_ * Moment (4));
+ DOUT << "}\n";
#endif
}
-void
-Midi_def::set( Input_performer* iperf_p )
-{
- delete iperf_p_;
- iperf_p_ = iperf_p;
-}
-void
-Midi_def::set_tempo( Moment moment, int count_per_minute_i )
-{
- whole_seconds_f_ = Moment( count_per_minute_i ) / Moment( 60 ) / moment;
-}
+IMPLEMENT_IS_TYPE_B1(Midi_def, Music_output_def);
-void
-Midi_def::set_var( String s, Real r )
+int Midi_def::default_count_i_=0;
+int
+Midi_def::get_next_default_count () const
{
- real_vars_p_->elem( s ) = r;
+ return default_count_i_++;
}
-