/*
- audio-item.hh -- declare Audio_items
+ This file is part of LilyPond, the GNU music typesetter.
- (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1996--2015 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/>.
*/
#ifndef AUDIO_ITEM_HH
#include "moment.hh"
#include "pitch.hh"
-/**
-
-Any piece of audio information. We need virtual constructors, let's
-try decentralised factory for specific audio implemenations.
-*/
class Audio_item : public Audio_element
{
public:
- Audio_item ();
Audio_column *audio_column_;
+ int channel_;
+
+ Audio_item ();
+ Audio_column *get_column () const;
+
+ virtual void render ();
private:
Audio_item (Audio_item const &);
Audio_item &operator = (Audio_item const &);
};
-class Audio_dynamic : public Audio_item
+// Audio_span_dynamic is open at the end of the interval, so the volume
+// grows/diminshes toward a target, but whether it reaches it depends on the
+// next Audio_span_dynamic in the performance. For example, a crescendo
+// notated as mf < p is represented as [mf < x) [p ...) i.e. growth to some
+// volume louder than mf followed by an abrupt change to p.
+class Audio_span_dynamic : public Audio_element
{
public:
- Audio_dynamic (Real volume);
+ static const Real MINIMUM_VOLUME;
+ static const Real MAXIMUM_VOLUME;
+ static const Real DEFAULT_VOLUME;
- Real volume_;
+private:
+ Moment start_moment_;
+ Real start_volume_;
+ Real duration_; // = target moment - start moment
+ Real gain_; // = target volume - start volume
+
+public:
+ Moment get_start_moment () const { return start_moment_; }
+ Real get_start_volume () const { return start_volume_; }
+ Real get_duration () const { return duration_; }
+ void set_end_moment (Moment);
+ void set_volume (Real start, Real target);
+ Real get_volume (Moment) const;
+ Audio_span_dynamic (Moment mom, Real volume);
};
class Audio_key : public Audio_item
class Audio_note : public Audio_item
{
public:
- Audio_note (Pitch p, Moment m, int transposing_i = 0);
+ Audio_note (Pitch p, Moment m, bool tie_event, Pitch transposition, int velocity);
- void tie_to (Audio_note *);
+ // with tieWaitForNote, there might be a skip between the tied notes!
+ void tie_to (Audio_note *, Moment skip = 0);
+ Audio_note *tie_head ();
+ virtual string to_string () const;
Pitch pitch_;
Moment length_mom_;
- int transposing_;
+ Pitch transposing_;
+ Audio_span_dynamic *dynamic_;
+ int extra_velocity_;
+
Audio_note *tied_;
+ bool tie_event_;
};
class Audio_piano_pedal : public Audio_item
{
public:
enum Type
- {
- TEXT = 1, COPYRIGHT, TRACK_NAME, INSTRUMENT_NAME, LYRIC,
- MARKER, CUE_POINT
- };
+ {
+ TEXT = 1, COPYRIGHT, TRACK_NAME, INSTRUMENT_NAME, LYRIC,
+ MARKER, CUE_POINT
+ };
- Audio_text (Audio_text::Type type, string text_string);
+ Audio_text (Audio_text::Type type, const string &text_string);
Type type_;
string text_string_;
class Audio_tempo : public Audio_item
{
public:
- Audio_tempo (int per_minute_4_i);
+ Audio_tempo (int per_minute_4);
int per_minute_4_;
};
int one_beat_;
};
+class Audio_control_change : public Audio_item
+{
+public:
+ Audio_control_change (int control, int value);
+
+ int control_;
+ int value_;
+};
+
+int moment_to_ticks (Moment);
+Real moment_to_real (Moment);
+Moment remap_grace_duration (Moment);
+
#endif // AUDIO_ITEM_HH