/*
- 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--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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"
+#include "international.hh"
-Audio_instrument::Audio_instrument (String instrument_string)
+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_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,
+ int velocity)
+ : pitch_ (p),
+ length_mom_ (m),
+ transposing_ (transposing),
+ dynamic_ (0),
+ extra_velocity_ (velocity),
+ tied_ (0),
+ tie_event_ (tie_event)
{
- pitch_ = p;
- length_mom_ = m;
- tied_ = 0;
- transposing_ = transposing_i;
}
void
-Audio_note::tie_to (Audio_note *t)
+Audio_note::tie_to (Audio_note *t, Moment skip)
{
tied_ = t;
- Audio_note *first = 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;
+}
+
+Audio_note *
+Audio_note::tie_head ()
+{
+ Audio_note *first = this;
while (first->tied_)
first = first->tied_;
- first->length_mom_ += length_mom_;
- length_mom_ = 0;
+ return first;
+}
+
+string
+Audio_note::to_string () const
+{
+ 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 (int acc, bool major)
major_ = major;
}
-Audio_dynamic::Audio_dynamic (Real volume)
+const Real Audio_span_dynamic::MINIMUM_VOLUME = 0.0;
+const Real Audio_span_dynamic::MAXIMUM_VOLUME = 1.0;
+const Real Audio_span_dynamic::DEFAULT_VOLUME = 90.0 / 127.0;
+
+Audio_span_dynamic::Audio_span_dynamic (Moment mom, Real volume)
+ : start_moment_ (mom),
+ duration_ (0)
{
- volume_ = volume;
+ set_volume (volume, volume);
}
-Audio_tempo::Audio_tempo (int per_minute_4_i)
+Moment
+remap_grace_duration (Moment m)
{
- per_minute_4_ = per_minute_4_i;
+ 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::set_end_moment (Moment mom)
+{
+ if (mom < start_moment_)
+ {
+ programming_error (_f ("end moment (%s) < start moment (%s)",
+ mom.to_string ().c_str (),
+ start_moment_.to_string ().c_str ()));
+ mom = start_moment_;
+ }
+
+ duration_ = moment_to_real (mom - start_moment_);
+}
+
+void
+Audio_span_dynamic::set_volume (Real start, Real target)
+{
+ if (!(start >= 0))
+ {
+ programming_error (_f ("invalid start volume: %f", start));
+ start = DEFAULT_VOLUME;
+ }
+
+ if (!(target >= 0))
+ {
+ programming_error (_f ("invalid target volume: %f", target));
+ target = start;
+ }
+
+ start_volume_ = start;
+ gain_ = target - start;
+}
+
+Real Audio_span_dynamic::get_volume (Moment mom) const
+{
+ const Real when = moment_to_real (mom - start_moment_);
+
+ if (when <= 0)
+ {
+ if (when < 0)
+ programming_error (_f ("asked to compute volume at %f for dynamic span of duration %f starting at %s",
+ when, duration_,
+ start_moment_.to_string ().c_str ()));
+ return start_volume_;
+ }
+
+ if (when >= duration_)
+ {
+ programming_error (_f ("asked to compute volume at +%f for dynamic span of duration %f starting at %s",
+ when, duration_,
+ start_moment_.to_string ().c_str ()));
+ return start_volume_ + gain_;
+ }
+
+ return start_volume_ + gain_ * (when / duration_);
+}
+
+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)
one_beat_ = one_beat;
}
-Audio_text::Audio_text (Audio_text::Type type, String text_string)
+Audio_text::Audio_text (Audio_text::Type type, const string &text_string)
{
text_string_ = text_string;
type_ = type;
}
+Audio_control_change::Audio_control_change (int control, int value)
+ : control_ (control),
+ value_ (value)
+{
+}
projects / lilypond.git / blobdiff