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 "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   post_move_processing ();
  64 }
  65
  66
  67 void
  68 Score_performer::process()
  69 {
  70   //process_music();
  71   announces ();
  72   pre_move_processing();
  73   check_removal();
  74 }
  75
  76 void
  77 Score_performer::start()
  78 {
  79 }
  80
  81
  82 int
  83 Score_performer::get_tempo_i() const
  84 {
  85   return performance_p_->midi_l_->get_tempo_i (Moment (1, 4));
  86 }
  87
  88 void
  89 Score_performer::finish()
  90 {
  91   check_removal ();
  92   removal_processing();
  93 }
  94
  95 Music_output *
  96 Score_performer::get_output_p ()
  97 {
  98   Music_output * o = performance_p_;
  99   performance_p_ =0;
 100   return o;
 101 }
 102
 103 void
 104 Score_performer::initialize ()
 105 {
 106   unsmob_translator_def (definition_)->apply_property_operations (this);
 107   assert (dynamic_cast<Midi_def *> (output_def_l_));
 108   performance_p_ = new Performance;
 109   performance_p_->midi_l_ = dynamic_cast<Midi_def*>(output_def_l_);
 110
 111   Translator_group::initialize ();
 112 }