/*
- audio-item.cc -- implement Audio items.
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2015 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "audio-item.hh"
+
#include "midi-item.hh"
+#include "audio-column.hh"
+
+Audio_instrument::Audio_instrument (string instrument_string)
+{
+ str_ = instrument_string;
+}
+
+void
+Audio_item::render ()
+{
+}
+
+Audio_column *
+Audio_item::get_column () const
+{
+ return audio_column_;
+}
+
+Audio_item::Audio_item ()
+ : audio_column_ (0),
+ channel_ (0)
+{
+}
+
+Audio_note::Audio_note (Pitch p, Moment m, bool tie_event, Pitch transposing,
+ int velocity)
+ : pitch_ (p),
+ length_mom_ (m),
+ transposing_ (transposing),
+ dynamic_ (0),
+ extra_velocity_ (velocity),
+ tied_ (0),
+ tie_event_ (tie_event)
+{
+}
-Audio_instrument::Audio_instrument( String instrument_str )
- : Audio_item( 0 )
+void
+Audio_note::tie_to (Audio_note *t, Moment skip)
{
- str_ = instrument_str;
+ tied_ = t;
+ Audio_note *first = tie_head();
+ // Add the skip to the tied note and the length of the appended note
+ // to the full duration of the tie...
+ first->length_mom_ += skip + length_mom_;
+ length_mom_ = 0;
}
-Midi_item*
-Audio_instrument::midi_item_p()
+Audio_note *
+Audio_note::tie_head ()
{
- return str_.length_i() ? new Midi_instrument( 0, str_ ) : 0;
+ Audio_note *first = this;
+ while (first->tied_)
+ first = first->tied_;
+ return first;
}
-
-Audio_item::Audio_item( Request* req_l )
+
+string
+Audio_note::to_string () const
{
- audio_column_l_ = 0;
- req_l_ = req_l;
+ string s = "#<Audio_note pitch ";
+ s += pitch_.to_string();
+ s += " len ";
+ s += length_mom_.to_string();
+ if (tied_)
+ {
+ s += " tied to " + tied_->to_string();
+ }
+ if (tie_event_)
+ {
+ s += " tie_event";
+ }
+ s += ">";
+ return s;
}
-Audio_key::Audio_key( Request* req_l )
- : Audio_item( req_l )
+Audio_key::Audio_key (int acc, bool major)
{
+ accidentals_ = acc;
+ major_ = major;
}
-Midi_item*
-Audio_key::midi_item_p()
+Audio_dynamic::Audio_dynamic ()
+ : volume_ (-1),
+ silent_ (false)
{
- return new Midi_key( this );
}
+Audio_span_dynamic::Audio_span_dynamic (Real min_volume, Real max_volume)
+{
+ grow_dir_ = CENTER;
+ min_volume_ = min_volume;
+ max_volume_ = max_volume;
+}
-Audio_note::Audio_note( 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_note::midi_item_p()
+Moment
+remap_grace_duration (Moment m)
{
- return new Midi_note( this );
+ return Moment (m.main_part_ + Rational (9, 40) * m.grace_part_,
+ Rational (0));
}
-Audio_tempo::Audio_tempo( int per_minute_4_i )
- : Audio_item( 0 )
+Real
+moment_to_real (Moment m)
{
- per_minute_4_i_ = per_minute_4_i;
+ return remap_grace_duration (m).main_part_.to_double ();
}
-Midi_item*
-Audio_tempo::midi_item_p()
+int
+moment_to_ticks (Moment m)
{
- return new Midi_tempo( this );
+ return int (moment_to_real (m) * 384 * 4);
}
-Audio_meter::Audio_meter( Request* req_l )
- : Audio_item( req_l )
+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 ("Impossible or ambiguous (de)crescendo in MIDI.");
+ return;
+ }
+
+ Real start_v = dynamics_[0]->volume_;
+ if (dynamics_.back ()->volume_ < 0)
+ {
+ // The dynamic spanner does not end with an explicit dynamic script
+ // event. Adjust the end volume by at most 1/4 of the available
+ // volume range in this case.
+ dynamics_.back ()->volume_ = max (min (start_v + grow_dir_ * (max_volume_ - min_volume_) * 0.25, max_volume_), min_volume_);
+ }
+
+ Real 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;
+ }
}
-Midi_item*
-Audio_meter::midi_item_p()
+Audio_tempo::Audio_tempo (int per_minute_4)
{
- return new Midi_meter( this );
+ per_minute_4_ = per_minute_4;
}
-Audio_text::Audio_text( Audio_text::Type type, String text_str )
- : Audio_item( 0 )
+Audio_time_signature::Audio_time_signature (int beats, int one_beat)
{
- text_str_ = text_str;
- type_ = type;
+ beats_ = beats;
+ one_beat_ = one_beat;
}
-Midi_item*
-Audio_text::midi_item_p()
+Audio_text::Audio_text (Audio_text::Type type, const string &text_string)
{
- return text_str_.length_i() ? new Midi_text( this ) : 0;
+ text_string_ = text_string;
+ type_ = type;
}
+Audio_control_function_value_change
+::Audio_control_function_value_change (Control control, Real value)
+ : control_ (control), value_ (value)
+{
+}
-IMPLEMENT_IS_TYPE_B1(Audio_item, Audio_element);
+const Audio_control_function_value_change::Context_property
+Audio_control_function_value_change::context_properties_[] = {
+ // property name, enum constant, lower bound for range, upper bound for range
+ { "midiBalance", BALANCE, -1.0, 1.0 },
+ { "midiPanPosition", PAN_POSITION, -1.0, 1.0 },
+ { "midiExpression", EXPRESSION, 0.0, 1.0 },
+ { "midiReverbLevel", REVERB_LEVEL, 0.0, 1.0 },
+ { "midiChorusLevel", CHORUS_LEVEL, 0.0, 1.0 },
+ // extra element to signify the end of the mapping, must be kept last
+ { 0, NUM_CONTROLS, 0.0, 0.0 }
+};
projects / lilypond.git / blobdiff