X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Faudio-item.cc;h=a8a78199c73096c15375110f5c50020b28912d13;hb=90e4d7057f3857da049dfda3d130017d4719bd6b;hp=3774f732e9fa964e8cf9b3738bcd33b1f5b21cf6;hpb=58bcc84c9480dae1b21bc24d8396b91fe19e0131;p=lilypond.git diff --git a/lily/audio-item.cc b/lily/audio-item.cc index 3774f732e9..a8a78199c7 100644 --- a/lily/audio-item.cc +++ b/lily/audio-item.cc @@ -1,43 +1,99 @@ /* - 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 - (c) 1997--2005 Jan Nieuwenhuizen + 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 . */ #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 = "#to_string(); + } + if (tie_event_) + { + s += " tie_event"; + } + s += ">"; + return s; } Audio_key::Audio_key (int acc, bool major) @@ -46,14 +102,95 @@ 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) @@ -62,9 +199,14 @@ 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) +{ +}