2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1997--2011 Jan Nieuwenhuizen <janneke@gnu.org>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
22 #include "audio-column.hh"
23 #include "audio-item.hh"
24 #include "audio-staff.hh"
26 #include "international.hh"
27 #include "performer-group.hh"
30 /* Perform a staff. Individual notes should have their instrument
31 (staff-wide) set, so we override play_element ()
33 class Staff_performer
: public Performer
36 TRANSLATOR_DECLARATIONS (Staff_performer
);
40 virtual void acknowledge_audio_element (Audio_element_info info
);
41 virtual void finalize ();
42 virtual void initialize ();
43 void process_music ();
44 void stop_translation_timestep ();
47 string
new_instrument_string ();
48 void set_instrument_name (string voice
);
49 void set_instrument (int channel
, string voice
);
50 int get_channel (string instrument
);
51 Audio_staff
* get_audio_staff (string voice
);
52 Audio_staff
* new_audio_staff (string voice
);
53 Real
get_dynamic (string voice
);
55 string instrument_string_
;
57 Audio_instrument
*instrument_
;
58 Audio_text
*instrument_name_
;
61 map
<string
, Audio_staff
*> staff_map_
;
62 map
<string
, int> channel_map_
;
63 map
<string
, Real
> dynamic_map_
;
64 static map
<string
, int> static_channel_map_
;
65 static int channel_count_
;
68 map
<string
, int> Staff_performer::static_channel_map_
;
69 int Staff_performer::channel_count_
= 0;
71 #include "translator.icc"
73 ADD_TRANSLATOR (Staff_performer
,
86 Staff_performer::Staff_performer ()
89 , instrument_name_ (0)
95 Staff_performer::~Staff_performer ()
100 Staff_performer::initialize ()
105 Staff_performer::new_audio_staff (string voice
)
107 Audio_staff
* audio_staff
= new Audio_staff
;
108 string track_name
= context ()->id_string () + ":" + voice
;
109 if (track_name
!= ":")
111 name_
= new Audio_text (Audio_text::TRACK_NAME
, context ()->id_string ()
113 audio_staff
->add_audio_item (name_
);
114 announce_element (Audio_element_info (name_
, 0));
116 announce_element (Audio_element_info (audio_staff
, 0));
117 staff_map_
[voice
] = audio_staff
;
122 Staff_performer::get_audio_staff (string voice
)
124 SCM channel_mapping
= get_property ("midiChannelMapping");
125 if (channel_mapping
!= ly_symbol2scm ("instrument")
126 && staff_map_
.size ())
127 return staff_map_
.begin ()->second
;
129 map
<string
, Audio_staff
*>::const_iterator i
= staff_map_
.find (voice
);
130 if (i
!= staff_map_
.end ())
132 map
<string
, Audio_staff
*>::const_iterator e
= staff_map_
.find ("");
133 if (staff_map_
.size () == 1 && e
!= staff_map_
.end ())
135 staff_map_
[voice
] = e
->second
;
138 return new_audio_staff (voice
);
142 Staff_performer::get_dynamic (string voice
)
144 map
<string
, Real
>::const_iterator i
= dynamic_map_
.find (voice
);
145 if (i
!= dynamic_map_
.end ())
151 Staff_performer::process_music ()
156 Staff_performer::set_instrument (int channel
, string voice
)
158 instrument_
= new Audio_instrument (instrument_string_
);
159 instrument_
->channel_
= channel
;
160 announce_element (Audio_element_info (instrument_
, 0));
161 Audio_staff
* audio_staff
= get_audio_staff (voice
);
162 audio_staff
->add_audio_item (instrument_
);
163 SCM proc
= ly_lily_module_constant ("percussion?");
164 SCM drums
= scm_call_1 (proc
, ly_symbol2scm (instrument_string_
.c_str ()));
165 audio_staff
->percussion_
= (drums
== SCM_BOOL_T
);
169 Staff_performer::set_instrument_name (string voice
)
171 instrument_name_
= new Audio_text (Audio_text::INSTRUMENT_NAME
,
173 announce_element (Audio_element_info (instrument_name_
, 0));
174 get_audio_staff (voice
)->add_audio_item (instrument_name_
);
178 Staff_performer::stop_translation_timestep ()
182 instrument_name_
= 0;
187 Staff_performer::finalize ()
190 channel_map_
.clear ();
194 Staff_performer::new_instrument_string ()
196 // mustn't ask Score for instrument: it will return piano!
197 SCM minstr
= get_property ("midiInstrument");
199 if (!scm_is_string (minstr
)
200 || ly_scm2string (minstr
) == instrument_string_
)
203 instrument_string_
= ly_scm2string (minstr
);
205 return instrument_string_
;
209 Staff_performer::get_channel (string instrument
)
211 SCM channel_mapping
= get_property ("midiChannelMapping");
212 map
<string
, int>& channel_map
213 = (channel_mapping
!= ly_symbol2scm ("instrument"))
215 : static_channel_map_
;
217 map
<string
, int>::const_iterator i
= channel_map
.find (instrument
);
218 if (i
!= channel_map
.end ())
221 int channel
= (channel_mapping
== ly_symbol2scm ("staff"))
223 : channel_map
.size ();
225 /* MIDI players tend to ignore instrument settings on channel
226 10, the percussion channel. */
227 if (channel
% 16 == 9)
229 channel_map
["percussion"] = channel
++;
235 warning (_ ("MIDI channel wrapped around"));
236 warning (_ ("remapping modulo 16"));
237 channel
= channel
% 16;
240 channel_map
[instrument
] = channel
;
245 Staff_performer::acknowledge_audio_element (Audio_element_info inf
)
247 if (Audio_item
*ai
= dynamic_cast<Audio_item
*> (inf
.elem_
))
249 /* map each context (voice) to its own track */
250 Context
* c
= inf
.origin_contexts (this)[0];
252 if (c
->is_alias (ly_symbol2scm ("Voice")))
253 voice
= c
->id_string ();
254 SCM channel_mapping
= get_property ("midiChannelMapping");
255 if (channel_mapping
== ly_symbol2scm ("voice"))
256 channel_
= get_channel (voice
);
257 string str
= new_instrument_string ();
260 if (channel_mapping
!= ly_symbol2scm ("voice"))
261 channel_
= get_channel (str
);
262 set_instrument (channel_
, voice
);
263 set_instrument_name (voice
);
265 Audio_staff
* audio_staff
= get_audio_staff (voice
);
266 ai
->channel_
= channel_
;
267 // Output volume as velocity and disable Midi_dynamic output
268 if (Audio_dynamic
*d
= dynamic_cast<Audio_dynamic
*> (inf
.elem_
))
270 dynamic_map_
[voice
] = d
->volume_
;
273 if (Real d
= get_dynamic (voice
))
274 if (Audio_note
*n
= dynamic_cast<Audio_note
*> (inf
.elem_
))
276 audio_staff
->add_audio_item (ai
);