/*
- 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--2012 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1997--2008 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 "string-convert.hh"
#include "warn.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 0;
}
-
-
Midi_duration::Midi_duration (Real seconds_f)
{
seconds_ = seconds_f;
}
Midi_instrument::Midi_instrument (Audio_instrument *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- audio_ = a;
audio_->str_ = String_convert::to_lower (audio_->str_);
}
SCM program = scm_call_1 (proc, ly_symbol2scm (audio_->str_.c_str ()));
found = (program != SCM_BOOL_F);
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_)
{
- channel_ = 0;
}
Midi_item::~Midi_item ()
{
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 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_ (a->dynamic_ && a->dynamic_->volume_ >= 0
+ ? Byte (a->dynamic_->volume_ * 0x7f) : Byte (0x5a))
{
- 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)
{
- 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));
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));
}
}
Midi_dynamic::Midi_dynamic (Audio_dynamic *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- audio_ = a;
}
string
if (volume > full_scale)
volume = (int)full_scale;
+ int const volume_default = 100;
+ if (audio_->volume_ < 0 || audio_->silent_)
+ volume = volume_default;
+
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
char const *
Midi_item::name () const
{
- return this->class_name ();
+ return this->class_name ();
}