source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2007 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "audio-item.hh"
str_ = instrument_string;
}
+void
+Audio_item::render ()
+{
+}
+
+Audio_column *
+Audio_item::get_column () const
+{
+ return audio_column_;
+}
+
Audio_item::Audio_item ()
{
audio_column_ = 0;
}
-Audio_note::Audio_note (Pitch p, Moment m, int transposing_i)
+Audio_note::Audio_note (Pitch p, Moment m, bool tie_event, Pitch transposing)
{
pitch_ = p;
length_mom_ = m;
tied_ = 0;
- transposing_ = transposing_i;
+ transposing_ = transposing;
+ tie_event_ = tie_event;
}
void
major_ = major;
}
-Audio_dynamic::Audio_dynamic (Real volume)
+Audio_dynamic::Audio_dynamic ()
+{
+ volume_ = -1;
+}
+
+Audio_span_dynamic::Audio_span_dynamic ()
{
- volume_ = volume;
+ grow_dir_ = CENTER;
}
-Audio_tempo::Audio_tempo (int per_minute_4_i)
+void
+Audio_span_dynamic::add_absolute (Audio_dynamic *d)
+{
+ assert (d);
+ dynamics_.push_back (d);
+}
+
+Moment
+remap_grace_duration (Moment m)
+{
+ return Moment (m.main_part_ + Rational (9,40) * m.grace_part_,
+ Rational (0));
+}
+
+Real
+moment_to_real (Moment m)
+{
+ return remap_grace_duration (m).main_part_.to_double ();
+}
+
+int
+moment_to_ticks (Moment m)
+{
+ return int (moment_to_real (m) * 384 * 4);
+}
+
+void
+Audio_span_dynamic::render ()
+{
+ 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_)
+ {
+ dynamics_.erase (dynamics_.end () - 1);
+ }
+
+ 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), 0.0);
+
+ 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 ++)
+ {
+ 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;
+ }
+}
+
+
+
+Audio_tempo::Audio_tempo (int per_minute_4)
{
- per_minute_4_ = per_minute_4_i;
+ per_minute_4_ = per_minute_4;
}
Audio_time_signature::Audio_time_signature (int beats, int one_beat)