X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Faudio-item.cc;h=7934c34c4a1e86e3eea155c94298c36870c1aa68;hb=9f909143a605a677787915e5dcce5dbc48f2211c;hp=eaa895049a2651cbc4eb9a85708266b0afdc1c4c;hpb=13e79c0250d34b6bdfbafbc551ef64e8b59b2991;p=lilypond.git diff --git a/lily/audio-item.cc b/lily/audio-item.cc index eaa895049a..7934c34c4a 100644 --- a/lily/audio-item.cc +++ b/lily/audio-item.cc @@ -1,90 +1,224 @@ /* - 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--2012 Jan Nieuwenhuizen - (c) 1997 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" + +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 = "#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 }, + { "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 } +};