/*
- midi-item.cc -- implement MIDI items.
+ 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--2007 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 "midi-item.hh"
+#include "audio-column.hh"
#include "duration.hh"
#include "international.hh"
+#include "libc-extension.hh"
#include "main.hh"
#include "midi-stream.hh"
#include "misc.hh"
#include "program-option.hh"
#include "string-convert.hh"
#include "warn.hh"
+#include "lily-imports.hh"
-#define PITCH_WHEEL_TOP 0x3FFF
#define PITCH_WHEEL_CENTER 0x2000
-#define PITCH_WHEEL_BOTTOM 0x0000
-#define PITCH_WHEEL_RANGE (PITCH_WHEEL_TOP - PITCH_WHEEL_BOTTOM)
+#define PITCH_WHEEL_SEMITONE 0X1000
Midi_item *
Midi_item::get_midi (Audio_item *a)
return i->str_.length () ? new Midi_instrument (i) : 0;
else if (Audio_note *i = dynamic_cast<Audio_note *> (a))
return new Midi_note (i);
- else if (Audio_dynamic *i = dynamic_cast<Audio_dynamic *> (a))
- return new Midi_dynamic (i);
else if (Audio_piano_pedal *i = dynamic_cast<Audio_piano_pedal *> (a))
return new Midi_piano_pedal (i);
else if (Audio_tempo *i = dynamic_cast<Audio_tempo *> (a))
return new Midi_time_signature (i);
else if (Audio_text *i = dynamic_cast<Audio_text *> (a))
return new Midi_text (i);
+ else if (Audio_control_change *i = dynamic_cast<Audio_control_change *> (a))
+ return new Midi_control_change (i);
else
assert (0);
return 0;
}
-void
-Midi_chunk::set (string header_string, string data_string, string footer_string)
-{
- data_string_ = data_string;
- footer_string_ = footer_string;
- header_string_ = header_string;
-}
-
-string
-Midi_chunk::data_string () const
-{
- return data_string_;
-}
-
-string
-Midi_chunk::to_string () const
-{
- string str = header_string_;
- string dat = data_string ();
- string length_string = String_convert::int2hex (dat.length ()
- + footer_string_.length (), 8, '0');
- length_string = String_convert::hex2bin (length_string);
-
- str += length_string;
- str += dat;
- str += footer_string_;
-
- return str;
-}
-
Midi_duration::Midi_duration (Real seconds_f)
{
seconds_ = seconds_f;
return string ("<duration: ") + ::to_string (seconds_) + ">";
}
-Midi_event::Midi_event (int delta_ticks, Midi_item *midi)
-{
- delta_ticks_ = delta_ticks;
- midi_ = midi;
-}
-
-string
-Midi_event::to_string () const
-{
- string delta_string = Midi_item::i2varint_string (delta_ticks_);
- string midi_string = midi_->to_string ();
- assert (midi_string.length ());
- return delta_string + midi_string;
-}
-
-Midi_header::Midi_header (int format, int tracks, int clocks_per_4)
-{
- string str;
-
- string format_string = String_convert::int2hex (format, 4, '0');
- str += String_convert::hex2bin (format_string);
-
- string tracks_string = String_convert::int2hex (tracks, 4, '0');
- str += String_convert::hex2bin (tracks_string);
-
- string tempo_string = String_convert::int2hex (clocks_per_4, 4, '0');
- str += String_convert::hex2bin (tempo_string);
-
- set ("MThd", str, "");
-}
-
Midi_instrument::Midi_instrument (Audio_instrument *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- audio_ = a;
audio_->str_ = String_convert::to_lower (audio_->str_);
}
Byte program_byte = 0;
bool found = false;
- SCM proc = ly_lily_module_constant ("midi-program");
- SCM program = scm_call_1 (proc, ly_symbol2scm (audio_->str_.c_str ()));
- found = (program != SCM_BOOL_F);
+ SCM program = Lily::midi_program (ly_symbol2scm (audio_->str_.c_str ()));
+ found = (scm_is_true (program));
if (found)
- program_byte = scm_to_int (program);
+ program_byte = (Byte) scm_to_int (program);
else
warning (_f ("no such MIDI instrument: `%s'", audio_->str_.c_str ()));
{
}
-Midi_channel_item::Midi_channel_item ()
+Midi_channel_item::Midi_channel_item (Audio_item *ai)
+ : channel_ (ai->channel_)
+{
+}
+
+Midi_control_change::Midi_control_change (Audio_control_change *ai)
+ : Midi_channel_item (ai),
+ audio_ (ai)
{
- channel_ = 0;
}
Midi_item::~Midi_item ()
{
}
+Midi_channel_item::~Midi_channel_item ()
+{
+}
+
+Midi_control_change::~Midi_control_change ()
+{
+}
+
string
-Midi_item::i2varint_string (int i)
+int2midi_varint_string (int i)
{
int buffer = i & 0x7f;
while ((i >>= 7) > 0)
{
str += ::to_string ((char)buffer);
if (buffer & 0x80)
- buffer >>= 8;
+ buffer >>= 8;
else
- break;
+ break;
}
return str;
}
Midi_key::Midi_key (Audio_key *a)
+ : audio_ (a)
{
- audio_ = a;
}
string
}
Midi_time_signature::Midi_time_signature (Audio_time_signature *a)
+ : audio_ (a),
+ clocks_per_1_ (18)
{
- audio_ = a;
- clocks_per_1_ = 18;
}
string
int num = abs (audio_->beats_);
if (num > 255)
{
- warning ("Time signature with more than 255 beats. Truncating");
+ warning (_ ("Time signature with more than 255 beats. Truncating"));
num = 255;
}
int den = audio_->one_beat_;
-
-
string str = "ff5804";
str += String_convert::int2hex (num, 2, '0');
str += String_convert::int2hex (intlog2 (den), 2, '0');
}
Midi_note::Midi_note (Audio_note *a)
+ : Midi_channel_item (a),
+ audio_ (a),
+ dynamic_byte_ (min (max (Byte ((a->dynamic_
+ ? a->dynamic_->get_volume (a->audio_column_->when ()) * 0x7f : 0x5a)
+ + a->extra_velocity_),
+ Byte (0)), Byte (0x7f)))
{
- audio_ = a;
- dynamic_byte_ = 0x7f;
}
-
int
Midi_note::get_fine_tuning () const
{
Rational tune = (audio_->pitch_.tone_pitch ()
- + audio_->transposing_.tone_pitch ()) * Rational (2);
+ + audio_->transposing_.tone_pitch ()) * Rational (2);
tune -= Rational (get_semitone_pitch ());
- tune *= 100;
+ tune *= PITCH_WHEEL_SEMITONE;
return (int) double (tune);
}
int
Midi_note::get_semitone_pitch () const
{
- return int (double ((audio_->pitch_.tone_pitch ()
- + audio_->transposing_.tone_pitch ()) * Rational (2)));
+ double tune = double ((audio_->pitch_.tone_pitch ()
+ + audio_->transposing_.tone_pitch ()) * Rational (2));
+ return int (rint (tune));
}
string
// print warning if fine tuning was needed, HJJ
if (get_fine_tuning () != 0)
{
- warning (_f ("experimental: temporarily fine tuning (of %d cents) a channel.",
- get_fine_tuning ()));
-
- finetune = PITCH_WHEEL_CENTER;
- // Move pitch wheel to a shifted position.
- // The pitch wheel range (of 4 semitones) is multiplied by the cents.
- finetune += (PITCH_WHEEL_RANGE *get_fine_tuning ()) / (4 * 100);
+ finetune = PITCH_WHEEL_CENTER + get_fine_tuning ();
str += ::to_string ((char) (0xE0 + channel_));
str += ::to_string ((char) (finetune & 0x7F));
str += ::to_string ((char) status_byte);
str += ::to_string ((char) (get_semitone_pitch () + c0_pitch_));
- str += ::to_string ((char)dynamic_byte_);
+ str += ::to_string ((char) dynamic_byte_);
return str;
}
on_ = n;
channel_ = n->channel_;
- // Anybody who hears any difference, or knows how this works?
- // 0 should definitely be avoided, notes stick on some sound cards.
- // 64 is supposed to be neutral
-
- aftertouch_byte_ = 64;
+ // use note_on with velocity=0 instead of note_off
+ aftertouch_byte_ = 0;
}
string
Midi_note_off::to_string () const
{
- Byte status_byte = (char) (0x80 + channel_);
+ Byte status_byte = (char) (0x90 + channel_);
string str = ::to_string ((char)status_byte);
str += ::to_string ((char) (get_semitone_pitch () + Midi_note::c0_pitch_));
// Move pitch wheel back to the central position.
str += ::to_string ((char) 0x00);
str += ::to_string ((char) (0xE0 + channel_));
- str += ::to_string ((char) (PITCH_WHEEL_CENTER &0x7F));
+ str += ::to_string ((char) (PITCH_WHEEL_CENTER & 0x7F));
str += ::to_string ((char) (PITCH_WHEEL_CENTER >> 7));
}
return str;
}
-Midi_dynamic::Midi_dynamic (Audio_dynamic *a)
-{
- audio_ = a;
-}
-
-string
-Midi_dynamic::to_string () const
-{
- Byte status_byte = (char) (0xB0 + channel_);
- string str = ::to_string ((char)status_byte);
-
- /*
- Main volume controller (per channel):
- 07 MSB
- 27 LSB
- */
- static Real const full_scale = 127;
-
- int volume = (int) (audio_->volume_ * full_scale);
- if (volume <= 0)
- volume = 1;
- if (volume > full_scale)
- volume = (int)full_scale;
-
- str += ::to_string ((char)0x07);
- str += ::to_string ((char)volume);
- return str;
-}
-
Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- audio_ = a;
}
string
}
Midi_tempo::Midi_tempo (Audio_tempo *a)
+ : audio_ (a)
{
- audio_ = a;
}
string
}
Midi_text::Midi_text (Audio_text *a)
+ : audio_ (a)
{
- audio_ = a;
}
string
{
string str = "ff" + String_convert::int2hex (audio_->type_, 2, '0');
str = String_convert::hex2bin (str);
- str += i2varint_string (audio_->text_string_.length ());
+ str += int2midi_varint_string (audio_->text_string_.length ());
str += audio_->text_string_;
return str;
}
-Midi_track::Midi_track ()
- : Midi_chunk ()
-{
- // 4D 54 72 6B MTrk
- // 00 00 00 3B chunk length (59)
- // 00 FF 58 04 04 02 18 08 time signature
- // 00 FF 51 03 07 A1 20 tempo
-
- // FF 59 02 sf mi Key Signature
- // sf = -7: 7 flats
- // sf = -1: 1 flat
- // sf = 0: key of C
- // sf = 1: 1 sharp
- // sf = 7: 7 sharps
- // mi = 0: major key
- // mi = 1: minor key
-
- number_ = 0;
-
- char const *data_str0 = ""
- // "00" "ff58" "0404" "0218" "08"
- // "00" "ff51" "0307" "a120"
- // why a key at all, in midi?
- // key: C
- // "00" "ff59" "02" "00" "00"
- // key: F (scsii-menuetto)
- // "00" "ff59" "02" "ff" "00"
- ;
-
- string data_string;
- // only for format 0 (currently using format 1)?
- data_string += String_convert::hex2bin (data_str0);
-
- char const *footer_str0 = "00" "ff2f" "00";
- string footer_string = String_convert::hex2bin (footer_str0);
-
- set ("MTrk", data_string, footer_string);
-}
-
-void
-Midi_track::add (int delta_ticks, Midi_item *midi)
-{
- assert (delta_ticks >= 0);
-
- Midi_event *e = new Midi_event (delta_ticks, midi);
- events_.push_back (e);
-}
-
string
-Midi_track::data_string () const
+Midi_control_change::to_string () const
{
- string str = Midi_chunk::data_string ();
-
- for (vector<Midi_event*>::const_iterator i (events_.begin());
- i != events_.end(); i ++)
- {
- str += (*i)->to_string ();
- }
+ Byte status_byte = (char) (0xB0 + channel_);
+ string str = ::to_string ((char)status_byte);
+ str += ::to_string ((char) (audio_->control_));
+ str += ::to_string ((char) (audio_->value_));
return str;
}
-
char const *
Midi_item::name () const
{
- return this->class_name ();
-}
-
-Midi_track::~Midi_track ()
-{
+ return class_name ();
}
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