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--2000 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
  23 ADD_THIS_TRANSLATOR (Score_performer);
  24
  25
  26 Score_performer::Score_performer ()
  27 {
  28   performance_p_ = 0;
  29 }
  30
  31
  32 Score_performer::~Score_performer ()
  33 {
  34 }
  35
  36 void
  37 Score_performer::play_element (Audio_element * p)
  38 {
  39   if  (Audio_item * i=dynamic_cast<Audio_item *> (p))
  40     {
  41       audio_column_l_->add_audio_item (i);
  42     }
  43   performance_p_->add_element (p);
  44 }
  45
  46 void
  47 Score_performer::announce_element (Audio_element_info info)
  48 {
  49   announce_info_arr_.push (info);
  50   info.origin_trans_l_arr_.push (this);
  51
  52   /*
  53     huh?
  54     copied from score-engraver, but
  55     this way staff gets in list twice
  56   if (Audio_item* i = dynamic_cast<Audio_item*> (info.elem_l_))
  57     performance_p_->add_element (i);
  58   */
  59 }
  60
  61 void
  62 Score_performer::prepare (Moment m)
  63 {
  64   Global_translator::prepare (m);
  65   audio_column_l_ = new Audio_column (m);
  66   play_element (audio_column_l_);
  67   post_move_processing ();
  68 }
  69
  70
  71 void
  72 Score_performer::process()
  73 {
  74   process_music();
  75   do_announces ();
  76   pre_move_processing();
  77   check_removal();
  78 }
  79
  80 void
  81 Score_performer::start()
  82 {
  83 }
  84
  85
  86 int
  87 Score_performer::get_tempo_i() const
  88 {
  89   return performance_p_->midi_l_->get_tempo_i (Moment (1, 4));
  90 }
  91
  92 void
  93 Score_performer::finish()
  94 {
  95   check_removal ();
  96   removal_processing();
  97 }
  98
  99 Music_output *
 100 Score_performer::get_output_p ()
 101 {
 102   Music_output * o = performance_p_;
 103   performance_p_ =0;
 104   return o;
 105 }
 106
 107 void
 108 Score_performer::do_add_processing ()
 109 {
 110   Translator_group::do_add_processing ();
 111   assert (dynamic_cast<Midi_def *> (output_def_l_));
 112   performance_p_ = new Performance;
 113   performance_p_->midi_l_ = dynamic_cast<Midi_def*>(output_def_l_);
 114 }