* lily/ambitus-engraver.cc (create_ambitus): change name to

[lilypond.git] / lily / midi-def.cc

diff --git a/lily/midi-def.cc b/lily/midi-def.cc
index 275939aa4ec4117e1f1a55c2b54063d6c475d85b..d30e94e599a37407ce6961c735ced9e4d28ae346 100644 (file)
--- a/lily/midi-def.cc
+++ b/lily/midi-def.cc
@@ -1,84 +1,51 @@
 /*
-  midi-def.cc -- implement Midi_def
+  midi-def.cc -- implement midi output def functions
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 1997--2004 Jan Nieuwenhuizen <janneke@gnu.org>
 
 */
 #include <math.h>
-#include "misc.hh"
-#include "midi-def.hh"
-#include "translator.hh"
-#include "performance.hh"
-#include "assoc-iter.hh"
-#include "score-performer.hh"
-#include "debug.hh"
-
-// classes, alphasorted
-//     statics
-//     constructors
-//     destructor
-//     routines, alphasorted
 
-Midi_def::Midi_def()
-{
-  // ugh
-  set_tempo (Moment (1, 4), 60);
-}
-
-Midi_def::~Midi_def()
-{
-}
+#include "misc.hh"
+#include "output-def.hh"
+#include "moment.hh"
+#include "warn.hh"
+#include "scm-hash.hh"
 
-Real
-Midi_def::duration_to_seconds_f (Moment mom)
-{
-  if (!mom)
-    return 0;
-  
-  return Moment (whole_in_seconds_mom_) * mom;
-}
 
 
 int
-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;
+get_tempo (Output_def * def,
+          Moment one_beat_mom)
+{
+  SCM wis  = ly_symbol2scm ("whole-in-seconds");
+  Moment *w = unsmob_moment (def->lookup_variable (wis));
+
+  Moment wholes_per_min = Moment (60);
+  if (!w)
+    {
+      programming_error  ("wholes-in-seconds not set.");
+      wholes_per_min /= 4;
+    }
+  else
+    {
+      wholes_per_min /= *w; 
+    }
+  
+  int beats_per_min =  int ((wholes_per_min / one_beat_mom).main_part_);
   return int (beats_per_min);
 }
 
 void
-Midi_def::set_tempo (Moment one_beat_mom, int beats_per_minute_i)
+set_tempo (Output_def * def,
+          Moment one_beat_mom,
+          int beats_per_minute_i)
 {
   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: " << Moment (60) / (whole_in_seconds_mom_ * Moment (4));
-  DOUT << "}\n";
-#endif
-}
-
 
-IMPLEMENT_IS_TYPE_B1(Midi_def, Music_output_def);
-
-int Midi_def::default_count_i_=0;
-int
-Midi_def::get_next_default_count () const
-{
-  return default_count_i_++;
+  Moment m = Moment (1)/Moment (beats_per_second * one_beat_mom);
+  def->set_variable (ly_symbol2scm ("whole-in-seconds"), m.smobbed_copy ());
 }
 
-void
-Midi_def::reset_default_count ()
-{
-  default_count_i_ = 0;
-}