score-performer.cc -- implement Score_performer
source file of the GNU LilyPond music typesetter
-
- (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
- */
-#include <time.h>
+ (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
+
#include "score-performer.hh"
-#include "input-translator.hh"
-#include "midi-def.hh"
-#include "audio-item.hh"
+
#include "audio-column.hh"
-#include "audio-score.hh"
-#include "midi-item.hh"
+#include "audio-item.hh"
+#include "context-def.hh"
+#include "context.hh"
+#include "dispatcher.hh"
+#include "global-context.hh"
+#include "performance.hh"
#include "midi-stream.hh"
+#include "moment.hh"
+#include "output-def.hh"
#include "string-convert.hh"
-#include "debug.hh"
-#include "main.hh"
-#include "score.hh"
-#include "source-file.hh"
-#include "source.hh"
+#include "warn.hh"
-IMPLEMENT_IS_TYPE_B1(Score_performer,Performer_group_performer);
-ADD_THIS_PERFORMER(Score_performer);
+ADD_TRANSLATOR_GROUP (Score_performer,
+ /* doc */ "",
+ /* create */ "",
+ /* accept */ "",
+ /* read */ "",
+ /* write */ "");
-Score_performer::Score_performer()
+Score_performer::Score_performer ()
{
- midi_l_ = 0;
+ performance_ = 0;
+ skipping_ = false;
}
-Score_performer::~Score_performer()
+Score_performer::~Score_performer ()
{
}
-Translator*
-Score_performer::ancestor_l( int l )
-{
- return Global_translator::ancestor_l( l );
+void
+Score_performer::play_element (Audio_element *p)
+{
+ if (Audio_item *i = dynamic_cast<Audio_item *> (p))
+ audio_column_->add_audio_item (i);
+ performance_->add_element (p);
}
-int
-Score_performer::depth_i() const
-{
- return Global_translator::depth_i();
+void
+Score_performer::announce_element (Audio_element_info info)
+{
+ announce_infos_.push_back (info);
}
void
-Score_performer::finish()
+Score_performer::connect_to_context (Context *c)
{
- Performer_group_performer::do_removal_processing();
-
-
- Midi_stream output_stream( midi_l_->outfile_str_, midi_item_l_arr_.size() + 1, 384 );
- *mlog << "MIDI output to " << midi_l_->outfile_str_ << " ..." << endl;
-
- header( output_stream);
-// int track_i = 1;
- for (int i=0; i< midi_item_l_arr_.size(); i++) {
- Midi_item * it_p = midi_item_l_arr_[i];
-
-// if ( it_p->is_type_b( Midi_track::static_name()))
-// ((Midi_track*)it_p )->number_i_ = track_i ++;
- output_stream<< *it_p;
- }
- *output_stream.os_p_ << flush;
- *mlog << endl;
+ Performer_group::connect_to_context (c);
+
+ Dispatcher *d = c->get_global_context ()->event_source ();
+ d->add_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->add_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
+ d->add_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
}
void
-Score_performer::play( Audio_item* l )
+Score_performer::disconnect_from_context ()
{
- l->audio_column_l_ = audio_column_l_;
- audio_column_l_->add( l );
+ Dispatcher *d = context ()->get_global_context ()->event_source ();
+ d->remove_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->remove_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
+ d->remove_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+
+ Performer_group::disconnect_from_context ();
}
+IMPLEMENT_LISTENER (Score_performer, prepare);
void
-Score_performer::play( Midi_item* l )
+Score_performer::prepare (SCM sev)
{
- midi_item_l_arr_.push( l );
+ Stream_event *ev = unsmob_stream_event (sev);
+ SCM sm = ev->get_property ("moment");
+ Moment *m = unsmob_moment (sm);
+ audio_column_ = new Audio_column (*m);
+ play_element (audio_column_);
+ precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, UP);
}
-Moment
-Score_performer::get_mom() const
+IMPLEMENT_LISTENER (Score_performer, finish);
+void
+Score_performer::finish (SCM)
{
- return now_mom_;
+ recurse_over_translators (context (),
+ &Translator::finalize,
+ &Translator_group::finalize,
+ UP);
}
+IMPLEMENT_LISTENER (Score_performer, one_time_step);
void
-Score_performer::header(Midi_stream &output_stream)
+Score_performer::one_time_step (SCM)
{
- Midi_track midi_track;
-
- time_t t = time( 0 );
-
- // perhaps multiple text events?
- String str = String( "Creator: " ) + get_version_str() + "\n";
-
- Midi_text creator( Midi_text::TEXT, str );
- midi_track.add( Moment( 0 ), &creator );
-
- str = "Automatically generated at ";
- str += ctime( &t );
- str = str.left_str( str.length_i() - 1 );
- str += "\n";
- Midi_text generate( Midi_text::TEXT, str );
- midi_track.add( Moment( 0 ), &generate );
-
- str = "from musical definition: ";
-
- str += score_l_->location_str();
- Midi_text from( Midi_text::TEXT, str );
- midi_track.add( Moment( 0 ), &from );
-
- Midi_text track_name( Midi_text::TRACK_NAME, "Track "
- + String_convert::i2dec_str( 0, 0, '0' ) );
- midi_track.add( Moment( 0 ), &track_name );
-
- Midi_tempo tempo ( get_tempo_i() );
- midi_track.add( Moment(0), &tempo);
+ if (to_boolean (context ()->get_property ("skipTypesetting")))
+ {
+ if (!skipping_)
+ {
+ skip_start_mom_ = audio_column_->at_mom ();
+ skipping_ = true;
+ }
+ }
+ else
+ {
+ if (skipping_)
+ {
+ offset_mom_ -= audio_column_->at_mom () - skip_start_mom_;
+ skipping_ = false;
+ }
+
+ audio_column_->offset_at_mom (offset_mom_);
+ precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
+ do_announces ();
+ }
- output_stream << midi_track;
+ precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
}
-void
-Score_performer::prepare( Moment m )
+int
+Score_performer::get_tempo () const
{
- now_mom_ = m;
- audio_column_l_ = new Audio_column( m );
-
- score_l_->audio_score_p_->add( audio_column_l_ );
+ return ::get_tempo (performance_->midi_, Moment (Rational (1, 4)));
}
-void
-Score_performer::process()
+SCM
+Score_performer::get_output ()
{
- process_requests();
- prev_mom_ = now_mom_;
+ Music_output *o = performance_;
+ performance_ = 0;
+ return o->self_scm ();
}
void
-Score_performer::set_score(Score* score_l )
+Score_performer::derived_mark () const
{
- Global_translator::set_score( score_l );
- midi_l_ = score_l->midi_p_;
+ if (performance_)
+ scm_gc_mark (performance_->self_scm ());
+
+ Score_translator::derived_mark ();
+ Performer_group::derived_mark ();
}
void
-Score_performer::start()
+Score_performer::initialize ()
{
- //<ugh>
- int track_i = 1;
- Performer_group_performer::set_track( track_i );
- //</ugh>
-
- if ( midi_l_->outfile_str_ == "" )
- midi_l_->outfile_str_ = default_out_fn + ".midi";
-}
-
+ performance_ = new Performance;
+ performance_->unprotect ();
+ performance_->midi_ = context ()->get_output_def ();
-int
-Score_performer::get_tempo_i()const
-{
- return midi_l_->get_tempo_i(Moment( 1, 4 ));
+ Translator_group::initialize ();
}