source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2009 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "debug.hh"
+
#include "audio-item.hh"
+
#include "midi-item.hh"
-#include "request.hh"
#include "audio-column.hh"
-Audio_instrument::Audio_instrument (String instrument_str)
- : Audio_item (0)
+Audio_instrument::Audio_instrument (string instrument_string)
{
- str_ = instrument_str;
+ str_ = instrument_string;
}
-Midi_item*
-Audio_instrument::midi_item_p()
+void
+Audio_item::render ()
{
- return str_.length_i() ? new Midi_instrument(0, str_) : 0;
}
-IMPLEMENT_IS_TYPE_B1(Audio_instrument, Audio_item);
-Audio_item::Audio_item (Request* req_l)
+Audio_column *
+Audio_item::get_column () const
{
- audio_column_l_ = 0;
- req_l_ = req_l;
+ return audio_column_;
}
-Audio_key::Audio_key (Request* req_l)
- : Audio_item (req_l)
+Audio_item::Audio_item ()
{
+ audio_column_ = 0;
}
-Midi_item*
-Audio_key::midi_item_p()
+Audio_note::Audio_note (Pitch p, Moment m, bool tie_event, Pitch transposing)
{
- return new Midi_key (this);
+ pitch_ = p;
+ length_mom_ = m;
+ tied_ = 0;
+ transposing_ = transposing;
+ tie_event_ = tie_event;
}
-IMPLEMENT_IS_TYPE_B1 (Audio_key, Audio_item);
-Audio_note::Audio_note (Request* req_l, int transposing_i)
- : Audio_item (req_l)
+void
+Audio_note::tie_to (Audio_note *t)
{
- transposing_i_ = transposing_i;
+ tied_ = t;
+ Audio_note *first = t;
+ while (first->tied_)
+ first = first->tied_;
+ first->length_mom_ += length_mom_;
+ length_mom_ = 0;
}
-Midi_item*
-Audio_note::midi_item_p()
+Audio_key::Audio_key (int acc, bool major)
{
- return new Midi_note (this);
+ accidentals_ = acc;
+ major_ = major;
}
-IMPLEMENT_IS_TYPE_B1(Audio_note, Audio_item);
-
-Audio_tempo::Audio_tempo (int per_minute_4_i)
- : Audio_item (0)
+Audio_dynamic::Audio_dynamic ()
{
- per_minute_4_i_ = per_minute_4_i;
+ volume_ = -1;
}
-Midi_item*
-Audio_tempo::midi_item_p()
+Audio_span_dynamic::Audio_span_dynamic ()
{
- return new Midi_tempo (this);
+ grow_dir_ = CENTER;
}
-IMPLEMENT_IS_TYPE_B1(Audio_tempo, Audio_item);
-
-Audio_time_signature::Audio_time_signature (Request* req_l)
- : Audio_item (req_l)
+void
+Audio_span_dynamic::add_absolute (Audio_dynamic *d)
{
+ assert (d);
+ dynamics_.push_back (d);
}
-Midi_item*
-Audio_time_signature::midi_item_p()
+Moment
+remap_grace_duration (Moment m)
{
- return new Midi_time_signature (this);
+ return Moment (m.main_part_ + Rational (9,40) * m.grace_part_,
+ Rational (0));
}
-IMPLEMENT_IS_TYPE_B1(Audio_time_signature, Audio_item);
-
-Audio_text::Audio_text (Audio_text::Type type, String text_str)
- : Audio_item (0)
+Real
+moment_to_real (Moment m)
{
- text_str_ = text_str;
- type_ = type;
+ return remap_grace_duration (m).main_part_.to_double ();
}
-Midi_item*
-Audio_text::midi_item_p()
+int
+moment_to_ticks (Moment m)
{
- return text_str_.length_i() ? new Midi_text(this) : 0;
+ return int (moment_to_real (m) * 384 * 4);
}
-IMPLEMENT_IS_TYPE_B1(Audio_text, Audio_item);
-IMPLEMENT_IS_TYPE_B1(Audio_item, Audio_element);
-
void
-Audio_item::do_print () const
+Audio_span_dynamic::render ()
{
-#ifndef NPRINT
- if (audio_column_l_)
+ if (dynamics_.size () <= 1)
+ return ;
+
+ assert (dynamics_[0]->volume_ >= 0);
+
+ while (dynamics_.back ()->volume_ > 0
+ && dynamics_.size () > 1
+ && sign (dynamics_.back ()->volume_ - dynamics_[0]->volume_) != grow_dir_)
{
- DOUT << "at: "<< audio_column_l_->at_mom ();
+ dynamics_.erase (dynamics_.end () - 1);
}
- if (req_l_)
+
+ if (dynamics_.size () <= 1)
+ {
+ programming_error ("(de)crescendo on items with specified volume.");
+ return ;
+ }
+
+ Real delta_v = grow_dir_ * 0.1;
+
+ Real start_v = dynamics_[0]->volume_;
+ if (dynamics_.back ()->volume_ < 0)
+ dynamics_.back ()->volume_ = max (min (start_v + grow_dir_ * 0.25, 1.0), 0.1);
+
+ delta_v = dynamics_.back ()->volume_ - dynamics_[0]->volume_;
+
+ Moment start = dynamics_[0]->get_column ()->when ();
+
+ Real total_t = moment_to_real (dynamics_.back ()->get_column ()->when () - start);
+
+ for (vsize i = 1; i < dynamics_.size (); i ++)
{
- DOUT << "from: ";
- req_l_->print ();
+ Moment dt_moment = dynamics_[i]->get_column ()->when ()
+ - start;
+
+ Real dt = moment_to_real (dt_moment);
+
+ Real v = start_v + delta_v * (dt / total_t);
+
+ dynamics_[i]->volume_ = v;
}
-#endif
+}
+
+
+
+Audio_tempo::Audio_tempo (int per_minute_4)
+{
+ per_minute_4_ = per_minute_4;
+}
+
+Audio_time_signature::Audio_time_signature (int beats, int one_beat)
+{
+ beats_ = beats;
+ one_beat_ = one_beat;
+}
+
+Audio_text::Audio_text (Audio_text::Type type, string text_string)
+{
+ text_string_ = text_string;
+ type_ = type;
}