/*
midi-walker.hh -- declare Midi_walker
- (c) 1996,97 Han-Wen Nienhuys, Jan Nieuwenhuizen <jan@digicash.com>
- */
-
-#ifndef MIDIWALKER_HH
-#define MIDIWALKER_HH
+ (c) 1996--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
+*/
+#ifndef MIDI_WALKER_HH
+#define MIDI_WALKER_HH
+#include "pqueue.hh"
#include "lily-proto.hh"
+#include "moment.hh"
-#if 0
-
-/*
- sketch. . .
-
- It would be totally cool to share code with the Engraver hierarchy,
- but this is very tough i think.
-
- */
-class Performer {
- Performer_group_performer * daddy_perf_l_;
-
- virtual bool try_request(Request*r)
- {
- return daddy_perf_l_->try_request(r);
- }
- virtual void play_event( Midi_item i ) { daddy_perf_l_->play_event (i ); }
-};
-
-class Performer_group_performer : public Performer, public Translator {
- Pointer_list<Performer*> perf_p_list_;
-
- Link_array<Performer_group_performer> group_l_arr_;
- Link_array<Performer> nongroup_l_arr_;
-
- bool try_request(Request*r)
- {
- bool hebbes_b =false;
- for (int i =0; !hebbes_b && i < nongroup_l_arr_.size() ; i++)
- hebbes_b =nongroup_l_arr_[i]->try_request(req_l);
- if (!hebbes_b)
- hebbes_b = daddy_grav_l_->try_request(req_l);
- return hebbes_b ;
- }
-
-};
-
-class Staff_performer : public Performer_group_performer
+struct Midi_note_event : PQueue_ent<int, Midi_note *>
{
- int midi_track_i_;
- String instrument_str() {
- return Translator::id_str_;
- }
- virtual void play_event ( Midi_item i)
- {
- i.track_i_ = midi_track_i_;
- Performer::play_event(i);
- }
-};
-
-class Voice_performer_group_performer : public Performer_group_performer {
-
+ bool ignore_;
+ Midi_note_event ();
};
-class Note_performer : public Performer {
- Melodic_req * current_l_;
- Moment switch_off_at_,switch_on_at_;
+int compare (Midi_note_event const &left, Midi_note_event const &right);
-
- virtual void process_request() {
- if (when() == switch_off_at_ )
- play_event( Note_event(current_l_->pitch() ))
-};
-
-class Voice_performer :
- public Performer_group_performer, public Interpreter
+/**
+ walk audio and output midi
+*/
+class Midi_walker
{
-
+public:
+ Midi_walker (Audio_staff *audio_staff, Midi_track *midi_track,
+ int channel);
+ ~Midi_walker ();
+
+ void process ();
+ void operator ++ (int);
+ bool ok () const;
+ void finalize ();
+private:
+ void do_start_note (Midi_note *note);
+ void do_stop_notes (int);
+ void output_event (int, Midi_item *l);
+ Midi_item *get_midi (Audio_item*);
+ int channel_;
+ Midi_track *track_;
+ Audio_staff *staff_;
+ vsize index_;
+ vector<Audio_item*> items_;
+ PQueue<Midi_note_event> stop_note_queue;
+ int last_tick_;
+
+ vector<Midi_item*> midi_events_;
};
-class Score_performer:
- public Performer_group_performer, public Global_translator
-{
- Midi_file * file_p_;
- Moment prev_;
- virtual void play_event(Midi_item i)
- {
- file_p_->output (i);
- }
- virtual void prepare(Moment m){
- file_p_->move ( m -prev_ );
- }
-};
-
-#endif
-
-#endif // MIDIWALKER_HH
-
-
+#endif // MIDI_WALKER_HH
projects / lilypond.git / blobdiff