/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2010 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1997--2015 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
#include "duration.hh"
#include "international.hh"
+#include "libc-extension.hh"
#include "main.hh"
#include "midi-stream.hh"
#include "misc.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 new Midi_time_signature (i);
else if (Audio_text *i = dynamic_cast<Audio_text *> (a))
return new Midi_text (i);
+ else if (Audio_control_function_value_change *i
+ = dynamic_cast<Audio_control_function_value_change *> (a))
+ return new Midi_control_function_value_change (i);
else
assert (0);
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_);
}
{
}
-Midi_channel_item::Midi_channel_item ()
+Midi_channel_item::Midi_channel_item (Audio_item *ai)
+ : channel_ (ai->channel_)
+{
+}
+
+Midi_control_function_value_change
+::Midi_control_function_value_change (Audio_control_function_value_change *ai)
+ : Midi_channel_item (ai), control_ (ai->control_), value_ (ai->value_)
{
- channel_ = 0;
}
Midi_item::~Midi_item ()
{
}
+Midi_channel_item::~Midi_channel_item ()
+{
+}
+
+Midi_control_function_value_change::~Midi_control_function_value_change ()
+{
+}
+
string
int2midi_varint_string (int i)
{
{
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_->volume_ >= 0
+ ? a->dynamic_->volume_ * 0x7f : 0x5a)
+ + a->extra_velocity_),
+ Byte (0)), Byte (0x7f)))
{
- audio_ = a;
- dynamic_byte_ = 0x5a;
}
-
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));
// 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
return str;
}
+string
+Midi_control_function_value_change::to_string () const
+{
+ // MIDI control function information. A MIDI control function may have one
+ // or two assigned control numbers depending on whether it supports coarse
+ // (7-bit) or fine (14-bit) resolution. If the control function supports
+ // fine resolution, the first (respectively, second) member of the structure
+ // represents the control number for setting the most (least) significant 7
+ // bits of the control function's value.
+ struct Control_function
+ {
+ int msb_control_number_;
+ int lsb_control_number_;
+ };
+
+ // Mapping from supported control functions (enumeration values defined in
+ // Audio_controller_value_change::Control) to the corresponding MIDI control
+ // numbers.
+ static const Control_function control_functions[] =
+ {
+ // When adding support for new control functions, please note the
+ // following:
+ // - The order of the control number definitions should be kept
+ // consistent with the order of the enumeration values defined in
+ // Audio_control_function_value_change::Control.
+ // - If the control function has only coarse resolution, the function's
+ // control number should be stored in the MSB member of the array
+ // element, and the LSB member should be set to a negative value.
+
+ { 8, 40 }, // balance
+ { 10, 42 }, // pan position
+ { 11, 43 }, // expression
+ { 91, -1 }, // reverb level (only coarse resolution available)
+ { 93, -1 } // chorus level (only coarse resolution available)
+ };
+
+ string str;
+ const Control_function *control_function = &control_functions[control_];
+ static const Real full_fine_scale = 0x3FFF;
+ static const Real full_coarse_scale = 0x7F;
+ bool fine_resolution = (control_function->lsb_control_number_ >= 0);
+ // value_ is in range [0.0 .. 1.0]. For directional value ranges,
+ // #CENTER will correspond to 0.5 exactly, and my_round rounds
+ // upwards when in case of doubt. That means that center position
+ // will round to 0x40 or 0x2000 by a hair's breadth.
+ int value = (int) my_round (value_ * (fine_resolution ?
+ full_fine_scale : full_coarse_scale));
+ Byte status_byte = (char) (0xB0 + channel_);
+ str += ::to_string ((char)status_byte);
+ str += ::to_string ((char)(control_function->msb_control_number_));
+ str += ::to_string ((char)(fine_resolution ? (value >> 7) : value));
+ if (fine_resolution)
+ {
+ str += ::to_string ((char)0x00);
+ str += ::to_string ((char)status_byte);
+ str += ::to_string ((char)(control_function->lsb_control_number_));
+ str += ::to_string ((char)(value & 0x7F));
+ }
+ return str;
+}
+
char const *
Midi_item::name () const
{
- return this->class_name ();
+ return this->class_name ();
}
projects / lilypond.git / blobdiff