/*
- 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--2011 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1997--2001 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.
-#include "translator-group.hh"
-#include "debug.hh"
+ 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 "warn.hh"
#include "audio-column.hh"
#include "audio-item.hh"
#include "audio-staff.hh"
-#include "performer-group-performer.hh"
-
-/** Perform a staff. Individual notes should have their instrument
- (staff-wide) set, so we override play_element ()
+#include "performer-group.hh"
+#include "context.hh"
- */
-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);
+ TRANSLATOR_DECLARATIONS (Staff_performer);
~Staff_performer ();
- String new_instrument_str ();
- String instrument_str_;
+ 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 ();
+ void set_instrument_name ();
+ void set_instrument (int channel);
private:
- Audio_staff* audio_staff_p_;
- Audio_instrument* instrument_p_;
- Audio_text* instrument_name_p_;
- Audio_text* name_p_;
- Audio_tempo* tempo_p_;
+ Audio_staff *audio_staff_;
+ Audio_instrument *instrument_;
+ Audio_text *instrument_name_;
+ Audio_text *name_;
+ Audio_tempo *tempo_;
+ map<string, int> channel_map_;
};
-ENTER_DESCRIPTION (Staff_performer, "","","","","" );
+#include "translator.icc"
+
+ADD_TRANSLATOR (Staff_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ "");
Staff_performer::Staff_performer ()
{
- audio_staff_p_ = 0;
- instrument_p_ = 0;
- instrument_name_p_ = 0;
- name_p_ = 0;
- tempo_p_ = 0;
+ audio_staff_ = 0;
+ instrument_ = 0;
+ instrument_name_ = 0;
+ name_ = 0;
+ tempo_ = 0;
}
Staff_performer::~Staff_performer ()
void
Staff_performer::initialize ()
{
- audio_staff_p_ = new Audio_staff;
- announce_element (Audio_element_info (audio_staff_p_, 0));
+ audio_staff_ = new Audio_staff;
+ name_ = new Audio_text (Audio_text::TRACK_NAME, context ()->id_string ());
- name_p_ = new Audio_text (Audio_text::TRACK_NAME, id_str_);
- announce_element (Audio_element_info (name_p_, 0));
-
- tempo_p_ = new Audio_tempo (get_tempo_i ());
- announce_element (Audio_element_info (tempo_p_, 0));
-
- Performer_group_performer::initialize ();
+ audio_staff_->add_audio_item (name_);
+
+ announce_element (Audio_element_info (audio_staff_, 0));
+ announce_element (Audio_element_info (name_, 0));
}
void
-Staff_performer::create_audio_elements ()
+Staff_performer::process_music ()
{
- String str = new_instrument_str ();
- if (str.length_i ())
+ string str = new_instrument_string ();
+ if (str.length ())
{
- instrument_name_p_ = new Audio_text (Audio_text::INSTRUMENT_NAME, str);
- announce_element (Audio_element_info (instrument_name_p_, 0));
- instrument_p_ = new Audio_instrument (str);
- announce_element (Audio_element_info (instrument_p_, 0));
+ set_instrument (0);
+ set_instrument_name ();
}
- Performer_group_performer::create_audio_elements ();
+}
+
+void
+Staff_performer::set_instrument (int channel)
+{
+ instrument_ = new Audio_instrument (instrument_string_);
+ instrument_->channel_ = channel;
+ announce_element (Audio_element_info (instrument_, 0));
+ audio_staff_->add_audio_item (instrument_);
+}
+
+void
+Staff_performer::set_instrument_name ()
+{
+ instrument_name_ = new Audio_text (Audio_text::INSTRUMENT_NAME,
+ instrument_string_);
+ announce_element (Audio_element_info (instrument_name_, 0));
+ audio_staff_->add_audio_item (instrument_name_);
}
void
Staff_performer::stop_translation_timestep ()
{
- SCM proc = scm_primitive_eval (ly_symbol2scm ("percussion-p"));
- SCM drums_p = gh_call1 (proc, ly_symbol2scm (instrument_str_.ch_C()));
- audio_staff_p_->channel_i_ = (drums_p == SCM_BOOL_T ? 9 : -1 );
- if (name_p_)
- {
- play_element (name_p_);
- name_p_ = 0;
- }
- if (tempo_p_)
- {
- play_element (tempo_p_);
- tempo_p_ = 0;
- }
- if (instrument_name_p_)
- {
- play_element (instrument_name_p_);
- instrument_name_p_ = 0;
- }
- if (instrument_p_)
- {
- play_element (instrument_p_);
- instrument_p_ = 0;
- }
- Performer_group_performer::stop_translation_timestep ();
+ 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);
+
+ name_ = 0;
+ tempo_ = 0;
+ instrument_name_ = 0;
+ instrument_ = 0;
}
void
Staff_performer::finalize ()
{
- Performer_group_performer::finalize ();
- Performer::play_element (audio_staff_p_);
- audio_staff_p_ = 0;
+ audio_staff_ = 0;
}
-String
-Staff_performer::new_instrument_str ()
-{
+string
+Staff_performer::new_instrument_string ()
+{
// mustn't ask Score for instrument: it will return piano!
- SCM minstr = get_property (ly_symbol2scm ("midiInstrument"));
-
- if (!gh_string_p (minstr))
- minstr = get_property (ly_symbol2scm ("instrument"));
+ SCM minstr = get_property ("midiInstrument");
- if (!gh_string_p (minstr)
- || ly_scm2string (minstr) == instrument_str_)
+ if (!scm_is_string (minstr)
+ || ly_scm2string (minstr) == instrument_string_)
return "";
- instrument_str_ = ly_scm2string (minstr);
+ instrument_string_ = ly_scm2string (minstr);
- return instrument_str_;
+ return instrument_string_;
}
-void
-Staff_performer::play_element (Audio_element* p)
+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_p_->add_audio_item (ai);
+ /* map each context (voice) to its own channel */
+ Context *c = inf.origin_contexts (this)[0];
+ string id = c->id_string ();
+ int channel = channel_map_.size ();
+ /* MIDI players tend to ignore instrument settings on channel
+ 10, the percussion channel. */
+ if (channel % 16 == 9)
+ channel_map_[""] = channel++;
+
+ map<string, int>::const_iterator i = channel_map_.find (id);
+ if (i != channel_map_.end ())
+ channel = i->second;
+ else
+ {
+ channel_map_[id] = channel;
+ if (channel)
+ set_instrument (channel);
+ }
+
+ ai->channel_ = channel;
+ audio_staff_->add_audio_item (ai);
}
- Performer::play_element (p);
}
projects / lilypond.git / blobdiff