/*
- 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--2012 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1997--2004 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 <map>
-#include "translator-group.hh"
-#include "warn.hh"
#include "audio-column.hh"
#include "audio-item.hh"
#include "audio-staff.hh"
-#include "performer-group-performer.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_group_performer
+/* 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 ();
- String new_instrument_string ();
- String instrument_string_;
-
protected:
- virtual void play_element (Audio_element* p);
+ virtual void acknowledge_audio_element (Audio_element_info info);
virtual void finalize ();
virtual void initialize ();
- virtual void create_audio_elements ();
- virtual void stop_translation_timestep ();
+ void process_music ();
+ void stop_translation_timestep ();
private:
- Audio_staff* audio_staff_;
- Audio_instrument* instrument_;
- Audio_text* instrument_name_;
- Audio_text* name_;
- Audio_tempo* tempo_;
+ string new_instrument_string ();
+ void set_instrument_name (string voice);
+ void set_instrument (int channel, string voice);
+ int get_channel (string instrument);
+ Audio_staff *get_audio_staff (string voice);
+ Audio_staff *new_audio_staff (string voice);
+ Audio_dynamic *get_dynamic (string voice);
+
+ string instrument_string_;
+ int channel_;
+ Audio_instrument *instrument_;
+ Audio_text *instrument_name_;
+ Audio_text *name_;
+ Audio_tempo *tempo_;
+ 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_;
};
-ENTER_DESCRIPTION (Staff_performer, "", "",
- "",
- "", "", "");
+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 */
+ "",
+
+ /* write */
+ "");
Staff_performer::Staff_performer ()
+ : channel_ (-1),
+ instrument_ (0),
+ instrument_name_ (0),
+ name_ (0),
+ tempo_ (0)
{
- audio_staff_ = 0;
- instrument_ = 0;
- instrument_name_ = 0;
- name_ = 0;
- tempo_ = 0;
}
Staff_performer::~Staff_performer ()
void
Staff_performer::initialize ()
{
- audio_staff_ = new Audio_staff;
- announce_element (Audio_element_info (audio_staff_, 0));
+ ++staff_performer_count_;
+}
- name_ = new Audio_text (Audio_text::TRACK_NAME, daddy_context_->id_string_);
- announce_element (Audio_element_info (name_, 0));
+Audio_staff *
+Staff_performer::new_audio_staff (string voice)
+{
+ 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);
+ return audio_staff;
+}
- tempo_ = new Audio_tempo (get_tempo ());
- announce_element (Audio_element_info (tempo_, 0));
+Audio_staff *
+Staff_performer::get_audio_staff (string voice)
+{
+ SCM channel_mapping = get_property ("midiChannelMapping");
+ if (channel_mapping != ly_symbol2scm ("instrument")
+ && staff_map_.size ())
+ return staff_map_.begin ()->second;
- Performer_group_performer::initialize ();
+ 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 (string voice)
+{
+ map<string, Audio_dynamic *>::const_iterator i = dynamic_map_.find (voice);
+ if (i != dynamic_map_.end ())
+ return i->second;
+ return 0;
}
void
-Staff_performer::create_audio_elements ()
+Staff_performer::process_music ()
{
- String str = new_instrument_string ();
- if (str.length ())
- {
- instrument_name_ = new Audio_text (Audio_text::INSTRUMENT_NAME, str);
- announce_element (Audio_element_info (instrument_name_, 0));
- instrument_ = new Audio_instrument (str);
- announce_element (Audio_element_info (instrument_, 0));
-
- /*
- Have to be here before notes arrive into the staff.
- */
- play_element (instrument_);
- play_element (instrument_name_);
- }
- Performer_group_performer::create_audio_elements ();
+}
+
+void
+Staff_performer::set_instrument (int channel, string voice)
+{
+ 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);
+}
+
+void
+Staff_performer::set_instrument_name (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::stop_translation_timestep ()
{
- SCM proc = ly_scheme_function ("percussion?");
-
- SCM drums = scm_call_1 (proc, ly_symbol2scm (instrument_string_.to_str0 ()));
- audio_staff_->channel_ = (drums == SCM_BOOL_T ? 9 : -1 );
- if (name_)
- {
- play_element (name_);
- name_ = 0;
- }
- if (tempo_)
- {
- play_element (tempo_);
- tempo_ = 0;
- }
+ name_ = 0;
+ tempo_ = 0;
instrument_name_ = 0;
instrument_ = 0;
- Performer_group_performer::stop_translation_timestep ();
}
void
Staff_performer::finalize ()
{
- Performer_group_performer::finalize ();
- Performer::play_element (audio_staff_);
- audio_staff_ = 0;
+ 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 ()
-{
+string
+Staff_performer::new_instrument_string ()
+{
// mustn't ask Score for instrument: it will return piano!
SCM minstr = get_property ("midiInstrument");
- if (!is_string (minstr)
+ if (!scm_is_string (minstr)
|| ly_scm2string (minstr) == instrument_string_)
return "";
return instrument_string_;
}
-void
-Staff_performer::play_element (Audio_element* p)
+int
+Staff_performer::get_channel (string instrument)
+{
+ 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::acknowledge_audio_element (Audio_element_info inf)
{
- if (Audio_item *ai = dynamic_cast<Audio_item *> (p))
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (inf.elem_))
{
- audio_staff_->add_audio_item (ai);
+ /* 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_dynamic *d = dynamic_cast<Audio_dynamic *> (inf.elem_))
+ {
+ dynamic_map_[voice] = d;
+ // Output volume as velocity: must disable Midi_dynamic output
+ d->silent_ = true;
+ }
+ if (Audio_dynamic *d = get_dynamic (voice))
+ if (Audio_note *n = dynamic_cast<Audio_note *> (inf.elem_))
+ n->dynamic_ = d;
+ }
+ Audio_staff *audio_staff = get_audio_staff (voice);
+ audio_staff->add_audio_item (ai);
}
- Performer::play_element (p);
}
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