/*
- staff-performer.cc -- implement Staff_performer
+ 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 <map>
+#include <deque>
-#include "staff-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "debug.hh"
-#include "midi-def.hh"
#include "audio-column.hh"
#include "audio-item.hh"
-#include "midi-item.hh"
-#include "midi-stream.hh"
-#include "string.hh"
-#include "string-convert.hh"
+#include "audio-staff.hh"
+#include "context.hh"
+#include "international.hh"
+#include "performer-group.hh"
+#include "warn.hh"
+
+/* Perform a staff. Individual notes should have their instrument
+ (staff-wide) set, so we override play_element ()
+*/
+class Staff_performer : public Performer
+{
+public:
+ TRANSLATOR_DECLARATIONS (Staff_performer);
+ ~Staff_performer ();
+
+protected:
+ virtual void acknowledge_audio_element (Audio_element_info info);
+ virtual void finalize ();
+ virtual void initialize ();
+ void process_music ();
+ void stop_translation_timestep ();
+
+private:
+ string new_instrument_string ();
+ void set_instrument_name (const string &voice);
+ void set_instrument (int channel, const string &voice);
+ int get_channel (const string &instrument);
+ Audio_staff *get_audio_staff (const string &voice);
+ Audio_staff *new_audio_staff (const string &voice);
+ Audio_dynamic *get_dynamic (const string &voice);
+
+ string instrument_string_;
+ int channel_;
+ Audio_instrument *instrument_;
+ Audio_text *instrument_name_;
+ Audio_text *name_;
+ Audio_tempo *tempo_;
+ map<string, deque<Audio_note *> > note_map_;
+ map<string, Audio_staff *> staff_map_;
+ map<string, int> channel_map_;
+ map<string, Audio_dynamic *> dynamic_map_;
+ // Would prefer to have the following two items be
+ // members of the containing class Performance,
+ // so they can be reset for each new midi file output.
+ static map<string, int> static_channel_map_;
+ static int channel_count_;
+ // For now, ask the last Staff_performer clean up during its finalize method
+ static int staff_performer_count_;
+};
+
+map<string, int> Staff_performer::static_channel_map_;
+int Staff_performer::channel_count_ = 0;
+int Staff_performer::staff_performer_count_ = 0;
+
+#include "translator.icc"
+
+ADD_TRANSLATOR (Staff_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+ /* read */
+ "",
-IMPLEMENT_IS_TYPE_B1(Staff_performer,Performer_group_performer);
-ADD_THIS_PERFORMER(Staff_performer);
+ /* write */
+ "");
-Staff_performer::Staff_performer()
+Staff_performer::Staff_performer ()
+ : channel_ (-1),
+ instrument_ (0),
+ instrument_name_ (0),
+ name_ (0),
+ tempo_ (0)
{
- midi_track_p_ = new Midi_track;
}
-Staff_performer::~Staff_performer()
+Staff_performer::~Staff_performer ()
{
- delete midi_track_p_;
}
void
-Staff_performer::do_creation_processing()
+Staff_performer::initialize ()
{
+ ++staff_performer_count_;
}
-void
-Staff_performer::do_removal_processing()
+Audio_staff *
+Staff_performer::new_audio_staff (const string &voice)
{
- header();
-
- Moment midi_mom = 0;
- for ( PCursor<Audio_item*> i( audio_item_p_list_ ); i.ok(); i++ ) {
- Audio_item* l = *i;
- Moment mom = l->audio_column_l_->at_mom();
- Moment delta_t = mom - midi_mom_ ;
- midi_mom_ += delta_t;
- Midi_item* p = l->midi_item_p();
- p->channel_i_ = track_i_;
- midi_track_p_->add( delta_t, p );
- delete p;
+ Audio_staff *audio_staff = new Audio_staff;
+ audio_staff->merge_unisons_
+ = to_boolean (get_property ("midiMergeUnisons"));
+ string track_name = context ()->id_string () + ":" + voice;
+ if (track_name != ":")
+ {
+ name_ = new Audio_text (Audio_text::TRACK_NAME, context ()->id_string ()
+ + ":" + voice);
+ audio_staff->add_audio_item (name_);
+ announce_element (Audio_element_info (name_, 0));
+ }
+ announce_element (Audio_element_info (audio_staff, 0));
+ staff_map_[voice] = audio_staff;
+ if (!instrument_string_.empty ())
+ set_instrument (channel_, voice);
+ // Set initial values (if any) for control functions.
+ for (const Audio_control_function_value_change::Context_property *p
+ = Audio_control_function_value_change::context_properties_;
+ p->name_; ++p)
+ {
+ SCM value = get_property (p->name_);
+ if (scm_is_number (value))
+ {
+ Real val = scm_to_double (value);
+ if (val >= p->range_min_ && val <= p->range_max_)
+ {
+ // Normalize the value to the 0.0 to 1.0 range.
+ val = ((val - p->range_min_)
+ / (p->range_max_ - p->range_min_));
+ Audio_control_function_value_change *item
+ = new Audio_control_function_value_change (p->control_, val);
+ item->channel_ = channel_;
+ audio_staff->add_audio_item (item);
+ announce_element (Audio_element_info (item, 0));
+ }
+ else
+ warning (_f ("ignoring out-of-range value change for MIDI "
+ "property `%s'",
+ p->name_));
+ }
}
+ return audio_staff;
+}
+
+Audio_staff *
+Staff_performer::get_audio_staff (const string &voice)
+{
+ SCM channel_mapping = get_property ("midiChannelMapping");
+ if (channel_mapping != ly_symbol2scm ("instrument")
+ && staff_map_.size ())
+ return staff_map_.begin ()->second;
+
+ map<string, Audio_staff *>::const_iterator i = staff_map_.find (voice);
+ if (i != staff_map_.end ())
+ return i->second;
+ map<string, Audio_staff *>::const_iterator e = staff_map_.find ("");
+ if (staff_map_.size () == 1 && e != staff_map_.end ())
+ {
+ staff_map_[voice] = e->second;
+ return e->second;
+ }
+ return new_audio_staff (voice);
+}
+
+Audio_dynamic *
+Staff_performer::get_dynamic (const string &voice)
+{
+ map<string, Audio_dynamic *>::const_iterator i = dynamic_map_.find (voice);
+ if (i != dynamic_map_.end ())
+ return i->second;
+ return 0;
+}
- Performer::play( midi_track_p_ );
+void
+Staff_performer::process_music ()
+{
}
void
-Staff_performer::header()
+Staff_performer::set_instrument (int channel, const string &voice)
{
- // set track name
- Midi_text track_name( Midi_text::TRACK_NAME, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &track_name );
-
- // set instrument description
- Midi_text instrument_name( Midi_text::INSTRUMENT_NAME, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &instrument_name );
-
- // set instrument :-)
- // lieve wendy, nu heb je mijn track_i_ / get_staff_i weggehaald...
- // zie ook note-performer: ugh
- // ugh, need to know channel (===track===staff) too
- int channel_i = track_i_;
- Midi_instrument instrument( channel_i, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &instrument );
-
- Midi_tempo midi_tempo( get_tempo_i() );
- midi_track_p_->add( Moment( 0 ), &midi_tempo );
+ instrument_ = new Audio_instrument (instrument_string_);
+ instrument_->channel_ = channel;
+ announce_element (Audio_element_info (instrument_, 0));
+ Audio_staff *audio_staff = get_audio_staff (voice);
+ audio_staff->add_audio_item (instrument_);
+ SCM proc = ly_lily_module_constant ("percussion?");
+ SCM drums = scm_call_1 (proc, ly_symbol2scm (instrument_string_.c_str ()));
+ audio_staff->percussion_ = (drums == SCM_BOOL_T);
}
-String
-Staff_performer::instrument_str()
-{
- return Translator::id_str_;
+void
+Staff_performer::set_instrument_name (const string &voice)
+{
+ instrument_name_ = new Audio_text (Audio_text::INSTRUMENT_NAME,
+ instrument_string_);
+ announce_element (Audio_element_info (instrument_name_, 0));
+ get_audio_staff (voice)->add_audio_item (instrument_name_);
}
-void
-Staff_performer::play( Audio_item* p )
+void
+Staff_performer::stop_translation_timestep ()
{
- audio_item_p_list_.bottom().add( p );
- Performer::play( p );
+ name_ = 0;
+ tempo_ = 0;
+ instrument_name_ = 0;
+ instrument_ = 0;
+ // For each voice with a note played in the current translation time step,
+ // check if the voice has an Audio_dynamic registered: if yes, apply this
+ // dynamic to every note played in the voice in the current translation time
+ // step.
+ for (map<string, deque<Audio_note *> >::iterator vi = note_map_.begin ();
+ vi != note_map_.end (); ++vi)
+ {
+ Audio_dynamic *d = get_dynamic (vi->first);
+ if (d)
+ {
+ for (deque<Audio_note *>::iterator ni = vi->second.begin ();
+ ni != vi->second.end (); ++ni)
+ (*ni)->dynamic_ = d;
+ }
+ }
+ note_map_.clear ();
}
-// huh?
-void
-Staff_performer::play( Midi_item* p )
+void
+Staff_performer::finalize ()
{
- Performer::play( p );
+ staff_map_.clear ();
+ channel_map_.clear ();
+ if (staff_performer_count_)
+ --staff_performer_count_;
+ if (0 == staff_performer_count_)
+ {
+ static_channel_map_.clear ();
+ channel_count_ = 0;
+ }
}
+string
+Staff_performer::new_instrument_string ()
+{
+ // mustn't ask Score for instrument: it will return piano!
+ SCM minstr = get_property ("midiInstrument");
+
+ if (!scm_is_string (minstr)
+ || ly_scm2string (minstr) == instrument_string_)
+ return "";
+
+ instrument_string_ = ly_scm2string (minstr);
+
+ return instrument_string_;
+}
-//<ugh>
int
-Staff_performer::get_track_i() const
+Staff_performer::get_channel (const string &instrument)
{
- return track_i_;
+ SCM channel_mapping = get_property ("midiChannelMapping");
+ map<string, int> &channel_map
+ = (channel_mapping != ly_symbol2scm ("instrument"))
+ ? channel_map_
+ : static_channel_map_;
+
+ if (channel_mapping == ly_symbol2scm ("staff")
+ && channel_ >= 0)
+ return channel_;
+
+ map<string, int>::const_iterator i = channel_map.find (instrument);
+ if (i != channel_map.end ())
+ return i->second;
+
+ int channel = (channel_mapping == ly_symbol2scm ("staff"))
+ ? channel_count_++
+ : channel_map.size ();
+
+ /* MIDI players tend to ignore instrument settings on channel
+ 10, the percussion channel. */
+ if (channel % 16 == 9)
+ {
+ channel_map["percussion"] = channel++;
+ channel_count_++;
+ }
+
+ if (channel > 15)
+ {
+ warning (_ ("MIDI channel wrapped around"));
+ warning (_ ("remapping modulo 16"));
+ channel = channel % 16;
+ }
+
+ channel_map[instrument] = channel;
+ return channel;
}
void
-Staff_performer::set_track( int& track_i_r )
+Staff_performer::acknowledge_audio_element (Audio_element_info inf)
{
- track_i_ = track_i_r++;
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (inf.elem_))
+ {
+ /* map each context (voice) to its own track */
+ Context *c = inf.origin_contexts (this)[0];
+ string voice;
+ if (c->is_alias (ly_symbol2scm ("Voice")))
+ voice = c->id_string ();
+ SCM channel_mapping = get_property ("midiChannelMapping");
+ string str = new_instrument_string ();
+ if (channel_mapping != ly_symbol2scm ("instrument"))
+ channel_ = get_channel (voice);
+ else if (channel_ < 0 && str.empty ())
+ channel_ = get_channel (str);
+ if (str.length ())
+ {
+ if (channel_mapping != ly_symbol2scm ("voice"))
+ channel_ = get_channel (str);
+ set_instrument (channel_, voice);
+ set_instrument_name (voice);
+ }
+ ai->channel_ = channel_;
+ bool encode_dynamics_as_velocity_ = true;
+ if (encode_dynamics_as_velocity_)
+ {
+ if (Audio_note *n = dynamic_cast<Audio_note *> (inf.elem_))
+ {
+ // Keep track of the notes played in the current voice in this
+ // translation time step (for adjusting their dynamics later in
+ // stop_translation_timestep).
+ note_map_[voice].push_back (n);
+ }
+ else if (Audio_dynamic *d = dynamic_cast<Audio_dynamic *> (inf.elem_))
+ {
+ dynamic_map_[voice] = d;
+ // Output volume as velocity: must disable Midi_dynamic output
+ d->silent_ = true;
+ }
+ }
+ Audio_staff *audio_staff = get_audio_staff (voice);
+ audio_staff->add_audio_item (ai);
+ }
}
-//</ugh>