source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2008 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "performance.hh"
#include "international.hh"
#include "lily-version.hh"
#include "main.hh"
-#include "midi-item.hh"
+#include "midi-chunk.hh"
#include "midi-stream.hh"
#include "score.hh"
#include "string-convert.hh"
}
void
-Performance::output (Midi_stream &midi_stream)
+Performance::output (Midi_stream &midi_stream) const
{
- int tracks_i = audio_staffs_.size () + 1;
+ int tracks_ = audio_staffs_.size ();
- // ugh
- int clocks_per_4_i = 384;
-
- midi_stream << Midi_header (1, tracks_i, clocks_per_4_i);
- output_header_track (midi_stream);
- message (_ ("Track...") + " ");
+ midi_stream.write (Midi_header (1, tracks_, 384));
+ if (be_verbose_global)
+ progress_indication (_ ("Track...") + " ");
+
int channel = 0;
for (vsize i = 0; i < audio_staffs_.size (); i++)
{
if (be_verbose_global)
progress_indication ("[" + to_string (i));
- /*
- MIDI players tend to ignore instrument settings on
- channel 10, the percussion channel by default.
- */
- if (channel % 16 == 9)
- channel++;
+ int midi_channel = s->channel_;
+
+ if (midi_channel < 0)
+ {
+ midi_channel = channel;
+ channel ++;
+ /*
+ MIDI players tend to ignore instrument settings on
+ channel 10, the percussion channel.
+ */
+ if (channel % 16 == 9)
+ channel ++;
+ }
/*
Huh? Why does each staff also have a separate channel? We
should map channels to voices, not staves. --hwn.
*/
- if (s->channel_ < 0)
+ if (midi_channel > 15)
{
- s->channel_ = channel % 16;
- if (channel > 15)
- {
- warning (_ ("MIDI channel wrapped around"));
- warning (_ ("remapping modulo 16"));
- }
+ warning (_ ("MIDI channel wrapped around"));
+ warning (_ ("remapping modulo 16"));
+
+ midi_channel = midi_channel % 16;
}
- s->output (midi_stream, channel++);
+ s->output (midi_stream, midi_channel);
if (be_verbose_global)
progress_indication ("]");
}
}
-
-void
-Performance::output_header_track (Midi_stream &midi_stream)
-{
- Midi_track midi_track;
-
- midi_track.channel_ = 9;
-
- // perhaps multiple text events?
- string id_string;
- string str = string (_ ("Creator: "));
- id_string = String_convert::pad_to (gnu_lilypond_version_string (), 30);
- str += id_string;
-
- /*
- This seems silly, but in fact the audio elements should
- be generated elsewhere: not midi-specific.
- */
- Audio_text creator_a (Audio_text::TEXT, str);
- Midi_text creator (&creator_a);
- midi_track.add (Moment (0), &creator);
-
- /* Better not translate this */
- str = "Generated automatically by: ";
- str += id_string;
-
- Audio_text generate_a (Audio_text::TEXT, str);
- Midi_text generate (&generate_a);
- midi_track.add (Moment (0), &generate);
-
- str = _ ("at ");
- time_t t (time (0));
- str += ctime (&t);
- str = str.substr (0, str.length () - 1);
- str = String_convert::pad_to (str, 60);
-
- Audio_text at_a (Audio_text::TEXT, str);
- Midi_text at (&at_a);
- midi_track.add (Moment (0), &at);
-
- // TODO:
- // str = _f ("from musical definition: %s", origin_string_);
-
- Audio_text from_a (Audio_text::TEXT, str);
- Midi_text from (&from_a);
- midi_track.add (Moment (0), &from);
-
- Audio_text track_name_a (Audio_text::TRACK_NAME, "Track "
- + String_convert::int2dec (0, 0, '0'));
- Midi_text track_name (&track_name_a);
-
- midi_track.add (Moment (0), &track_name);
-
- // Some sequencers read track 0 last.
- // Audio_tempo tempo_a (midi_->get_tempo (Moment (Rational (1, 4))));
- // Midi_tempo tempo (&tempo_a);
- // midi_track.add (Moment (0), &tempo);
-
- midi_stream << midi_track;
-}
-
void
Performance::add_element (Audio_element *p)
{
- if (Audio_staff *s = dynamic_cast<Audio_staff *> (p))
- audio_staffs_.push_back (s);
-
audio_elements_.push_back (p);
}
void
-Performance::write_output (string out)
+Performance::write_output (string out) const
{
if (out == "-")
out = "lelie.midi";
/* Maybe a bit crude, but we had this before */
File_name file_name (out);
- file_name.ext_ = "midi";
out = file_name.to_string ();
Midi_stream midi_stream (out);
progress_indication ("\n");
}
+
+void
+Performance::process ()
+{
+}
+
+Performance *
+unsmob_performance (SCM x)
+{
+ return dynamic_cast<Performance*> (unsmob_music_output (x));
+}