lily/performance.cc

   1 /*
   2   performance.cc -- implement Performance
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
   7 */
   8
   9 #include <time.h>
  10 #include "debug.hh"
  11 #include "string.hh"
  12 #include "string-convert.hh"
  13 #include "main.hh"
  14 #include "midi-def.hh"
  15 #include "midi-item.hh"
  16 #include "midi-stream.hh"
  17 #include "audio-column.hh"
  18 #include "audio-staff.hh"
  19 #include "performance.hh"
  20 #include "score.hh"
  21
  22 Performance::Performance ()
  23 {
  24   midi_l_ =0;
  25 }
  26
  27 void
  28 Performance::add (Audio_column* p)
  29 {
  30   p->performance_l_ = this;
  31   audio_column_p_list_.bottom().add (p);
  32 }
  33
  34 void
  35 Performance::output (Midi_stream& midi_stream_r)
  36 {
  37   int tracks_i = audio_staff_l_list_.size() + 1;
  38   // ugh
  39   int clocks_per_4_i = 384;
  40   midi_stream_r << Midi_header (1, tracks_i, clocks_per_4_i);
  41   output_header_track (midi_stream_r);
  42   int n = 1;
  43   for (PCursor<Audio_staff*> i (audio_staff_l_list_); i.ok(); i++)
  44     i->output (midi_stream_r, n++);
  45 }
  46
  47 void
  48 Performance::output_header_track (Midi_stream& midi_stream_r)
  49 {
  50   Midi_track midi_track;
  51
  52   // perhaps multiple text events?
  53   String str = String (_("Creator: "));
  54   if (no_timestamps_global_b)
  55     str += "GNU LilyPond\n";
  56   else
  57       str += get_version_str() + "\n";
  58
  59   Midi_text creator (Midi_text::TEXT, str);
  60   midi_track.add (Moment (0), &creator);
  61
  62   str = _("Automatically generated");
  63   if (no_timestamps_global_b)
  64     str += ".\n";
  65   else
  66     {
  67       str += _(", at ");
  68       time_t t (time (0));
  69       str += ctime (&t);
  70       str = str.left_str (str.length_i() - 1);
  71     }
  72   Midi_text generate (Midi_text::TEXT, str);
  73   midi_track.add (Moment (0), &generate);
  74
  75   str = _("from musical definition: ");
  76
  77   str += origin_str_;
  78   Midi_text from (Midi_text::TEXT, str);
  79   midi_track.add (Moment (0), &from);
  80
  81   Midi_text track_name (Midi_text::TRACK_NAME, "Track "
  82                         + String_convert::i2dec_str (0, 0, '0'));
  83   midi_track.add (Moment (0), &track_name);
  84
  85   Midi_tempo tempo (midi_l_->get_tempo_i (Moment (1, 4)));
  86   midi_track.add (Moment (0), &tempo);
  87
  88   midi_stream_r  << midi_track;
  89 }
  90
  91 void
  92 Performance::add_staff (Audio_staff* l)
  93 {
  94   audio_staff_l_list_.bottom().add (l);
  95 }
  96
  97 void
  98 Performance::add (Audio_element *p)
  99 {
 100   audio_elem_p_list_.bottom().add (p);
 101 }
 102
 103 void
 104 Performance::print() const
 105 {
 106 #ifndef NPRINT
 107   DOUT << "Performance { ";
 108   DOUT << "Items: ";
 109   for (PCursor<Audio_element*> i (audio_elem_p_list_.top ()); i.ok (); i++)
 110     i->print ();
 111
 112   DOUT << "\ncolumns: ";
 113   for (PCursor<Audio_column*> i (audio_column_p_list_); i.ok(); i++)
 114     i->print();
 115   DOUT << "}\n";
 116 #endif
 117 }
 118
 119 void
 120 Performance::process()
 121 {
 122   print ();
 123
 124   String out=midi_l_->outfile_str_;
 125   if (out.empty_b ())
 126     {
 127
 128       out = default_outname_base_global;
 129       int def = midi_l_->get_next_default_count ();
 130       if (def)
 131         {
 132           out += "-" + String(def);
 133         }
 134
 135       out += ".midi";
 136     }
 137
 138   Midi_stream midi_stream (out);
 139   *mlog << _("MIDI output to ") << out<< " ..." << endl;
 140
 141   output (midi_stream);
 142   *mlog << endl;
 143 }