lily/score-performer.cc

   1 /*
   2   score-performer.cc -- implement Score_performer
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1996--2001 Jan Nieuwenhuizen <janneke@gnu.org>
   7  */
   8
   9 #include "score-performer.hh"
  10 #include "midi-def.hh"
  11 #include "audio-column.hh"
  12 #include "audio-item.hh"
  13 #include "performance.hh"
  14 #include "midi-stream.hh"
  15 #include "string-convert.hh"
  16 #include "debug.hh"
  17 #include "translator-def.hh"
  18
  19 ADD_THIS_TRANSLATOR (Score_performer);
  20
  21
  22 Score_performer::Score_performer ()
  23 {
  24   performance_p_ = 0;
  25 }
  26
  27
  28 Score_performer::~Score_performer ()
  29 {
  30 }
  31
  32 void
  33 Score_performer::play_element (Audio_element * p)
  34 {
  35   if (Audio_item * i=dynamic_cast<Audio_item *> (p))
  36     {
  37       audio_column_l_->add_audio_item (i);
  38     }
  39   performance_p_->add_element (p);
  40 }
  41
  42 void
  43 Score_performer::announce_element (Audio_element_info info)
  44 {
  45   announce_info_arr_.push (info);
  46
  47
  48   /*
  49     huh?
  50     copied from score-engraver, but
  51     this way staff gets in list twice
  52   if (Audio_item* i = dynamic_cast<Audio_item*> (info.elem_l_))
  53     performance_p_->add_element (i);
  54   */
  55 }
  56
  57 void
  58 Score_performer::prepare (Moment m)
  59 {
  60   Global_translator::prepare (m);
  61   audio_column_l_ = new Audio_column (m);
  62   play_element (audio_column_l_);
  63   start_translation_timestep ();
  64 }
  65
  66
  67 void
  68 Score_performer::one_time_step ()
  69 {
  70   // fixme: put this back.
  71   // process_music ();
  72   announces ();
  73   stop_translation_timestep ();
  74   check_removal ();
  75 }
  76
  77 void
  78 Score_performer::start ()
  79 {
  80 }
  81
  82
  83 int
  84 Score_performer::get_tempo_i () const
  85 {
  86   return performance_p_->midi_l_->get_tempo_i (Moment (1, 4));
  87 }
  88
  89 void
  90 Score_performer::finish ()
  91 {
  92   check_removal ();
  93   removal_processing ();
  94 }
  95
  96 Music_output *
  97 Score_performer::get_output_p ()
  98 {
  99   Music_output * o = performance_p_;
 100   performance_p_ =0;
 101   return o;
 102 }
 103
 104 void
 105 Score_performer::initialize ()
 106 {
 107   unsmob_translator_def (definition_)->apply_property_operations (this);
 108   assert (dynamic_cast<Midi_def *> (output_def_l_));
 109   performance_p_ = new Performance;
 110   performance_p_->midi_l_ = dynamic_cast<Midi_def*> (output_def_l_);
 111
 112   Translator_group::initialize ();
 113 }