source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- Jan Nieuwenhuizen <janneke@gnu.org>
- */
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
+*/
#include "midi-walker.hh"
+
#include "audio-column.hh"
-#include "audio-item.hh"
#include "audio-staff.hh"
#include "midi-item.hh"
#include "midi-stream.hh"
#include "warn.hh"
-Midi_note_event::Midi_note_event ()
-{
+Midi_note_event::Midi_note_event ()
+{
ignore_b_ = false;
}
int
-compare (Midi_note_event const& left, Midi_note_event const& right)
+compare (Midi_note_event const &left, Midi_note_event const &right)
{
- Moment m = (left.key - right.key);
+ Moment m = (left.key - right.key);
- if (m<0)
+ if (m < 0)
return -1;
else if (m > 0)
return 1;
return 0;
}
-Midi_walker::Midi_walker (Audio_staff* audio_staff, Midi_track* track)
+Midi_walker::Midi_walker (Audio_staff *audio_staff, Midi_track *track,
+ int channel)
{
+ channel_ = channel;
track_ = track;
- index_= 0;
+ index_ = 0;
items_ = &audio_staff->audio_items_;
last_mom_ = 0;
}
Midi_walker::~Midi_walker ()
-{
+{
// ugh
do_stop_notes (last_mom_ + Moment (Rational (10, 1)));
}
/**
- Find out if start_note event is needed, and do it if needed.
- */
-void
-Midi_walker::do_start_note (Midi_note* note)
+ Find out if start_note event is needed, and do it if needed.
+*/
+void
+Midi_walker::do_start_note (Midi_note *note)
{
- Audio_item* ptr = (*items_)[index_];
+ Audio_item *ptr = (*items_)[index_];
Moment stop_mom = note->get_length () + ptr->audio_column_->at_mom ();
bool play_start = true;
- for (int i=0; i < stop_note_queue.size (); i++)
+ for (vsize i = 0; i < stop_note_queue.size (); i++)
{
/* if this pith already in queue */
- if (stop_note_queue[i].val->get_pitch () == note->get_pitch ())
+ if (stop_note_queue[i].val->get_pitch () == note->get_pitch ())
{
if (stop_note_queue[i].key < stop_mom)
{
/* let stopnote in queue be ignored,
- new stop note wins */
+ new stop note wins */
stop_note_queue[i].ignore_b_ = true;
/* don't replay start note, */
play_start = false;
delete note;
note = 0;
break;
- }
+ }
}
}
}
/**
- Output note events for all notes which end before #max_mom#
- */
+ Output note events for all notes which end before #max_mom#
+*/
void
Midi_walker::do_stop_notes (Moment max_mom)
{
- while (stop_note_queue.size () && stop_note_queue.front ().key <= max_mom)
+ while (stop_note_queue.size () && stop_note_queue.front ().key <= max_mom)
{
Midi_note_event e = stop_note_queue.get ();
if (e.ignore_b_)
delete e.val;
continue;
}
-
+
Moment stop_mom = e.key;
- Midi_note* note = e.val;
-
+ Midi_note *note = e.val;
+
output_event (stop_mom, note);
}
}
-/**
- Advance the track to #now#, output the item, and adjust current "moment".
- */
+/**
+ Advance the track to #now#, output the item, and adjust current "moment".
+*/
void
-Midi_walker::output_event (Moment now_mom, Midi_item* l)
+Midi_walker::output_event (Moment now_mom, Midi_item *l)
{
- Moment delta_t = now_mom - last_mom_ ;
+ Moment delta_t = now_mom - last_mom_;
last_mom_ = now_mom;
/*
this is not correct, but at least it doesn't crash when you
start with graces
- */
- if (delta_t < Moment(0))
- {
- delta_t = Moment (0);
- }
+ */
+ if (delta_t < Moment (0))
+ delta_t = Moment (0);
-
track_->add (delta_t, l);
}
void
Midi_walker::process ()
{
- Audio_item* audio = (*items_)[index_];
+ Audio_item *audio = (*items_)[index_];
do_stop_notes (audio->audio_column_->at_mom ());
- if (Midi_item* midi = Midi_item::get_midi (audio))
+ if (Midi_item *midi = Midi_item::get_midi (audio))
{
- midi->channel_ = track_->channel_;
+ if (Midi_channel_item *mci = dynamic_cast<Midi_channel_item*> (midi))
+ mci->channel_ = channel_;
+
//midi->channel_ = track_->number_;
- if (Midi_note* note = dynamic_cast<Midi_note*> (midi))
+ if (Midi_note *note = dynamic_cast<Midi_note *> (midi))
{
if (note->get_length ().to_bool ())
do_start_note (note);
bool
Midi_walker::ok () const
{
- return index_ <items_->size ();
+ return index_ < items_->size ();
}
void