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,  1997--1999 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 "score.hh"
  18 #include "source-file.hh"
  19 #include "source.hh"
  20 #include "audio-staff.hh"
  21
  22 ADD_THIS_TRANSLATOR (Score_performer);
  23
  24 Score_performer::Score_performer ()
  25 {
  26   performance_p_ = 0;
  27 }
  28
  29
  30 Score_performer::~Score_performer ()
  31 {
  32 }
  33
  34 void
  35 Score_performer::play_element (Audio_element * p)
  36 {
  37   if  (Audio_item * i=dynamic_cast<Audio_item *> (p))
  38     {
  39       audio_column_l_->add_audio_item (i);
  40     }
  41   performance_p_->add_element (p);
  42 }
  43
  44 void
  45 Score_performer::announce_element (Audio_element_info info)
  46 {
  47   announce_info_arr_.push (info);
  48   info.origin_trans_l_arr_.push (this);
  49
  50   /*
  51     huh?
  52     copied from score-engraver, but
  53     this way staff gets in list twice
  54   if (Audio_item* i = dynamic_cast<Audio_item*> (info.elem_l_))
  55     performance_p_->add_element (i);
  56   */
  57 }
  58
  59 void
  60 Score_performer::prepare (Moment m)
  61 {
  62   Global_translator::prepare (m);
  63   audio_column_l_ = new Audio_column (m);
  64   play_element (audio_column_l_);
  65   post_move_processing ();
  66 }
  67
  68
  69 void
  70 Score_performer::process()
  71 {
  72   process_requests();
  73   do_announces ();
  74   pre_move_processing();
  75   check_removal();
  76 }
  77
  78 void
  79 Score_performer::start()
  80 {
  81 }
  82
  83
  84 int
  85 Score_performer::get_tempo_i() const
  86 {
  87   return performance_p_->midi_l_->get_tempo_i (Moment (1, 4));
  88 }
  89
  90 void
  91 Score_performer::finish()
  92 {
  93   check_removal ();
  94   removal_processing();
  95 }
  96
  97 Music_output *
  98 Score_performer::get_output_p ()
  99 {
 100   Music_output * o = performance_p_;
 101   performance_p_ =0;
 102   return o;
 103 }
 104
 105 void
 106 Score_performer::do_add_processing ()
 107 {
 108   Translator_group::do_add_processing ();
 109   assert (dynamic_cast<Midi_def *> (output_def_l_));
 110   performance_p_ = new Performance;
 111   performance_p_->midi_l_ = dynamic_cast<Midi_def*>(output_def_l_);
 112 }