-//
-// midiitem.cc
-//
-// source file of the LilyPond music typesetter
-//
-// (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
-
-#include <limits.h>
-#include "proto.hh"
-#include "plist.hh"
-#include "p-col.hh"
-#include "debug.hh"
-#include "misc.hh"
-#include "string.hh"
-#include "string-convert.hh"
-#include "request.hh"
-#include "musical-request.hh"
-#include "voice.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1997--2014 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 "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"
-Midi_chunk::Midi_chunk()
+#define PITCH_WHEEL_CENTER 0x2000
+#define PITCH_WHEEL_SEMITONE 0X1000
+
+Midi_item *
+Midi_item::get_midi (Audio_item *a)
{
+ if (Audio_key *i = dynamic_cast<Audio_key *> (a))
+ return new Midi_key (i);
+ else if (Audio_instrument *i = dynamic_cast<Audio_instrument *> (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_tempo (i);
+ else if (Audio_time_signature *i = dynamic_cast<Audio_time_signature *> (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;
}
-void
-Midi_chunk::add( String str )
+Midi_duration::Midi_duration (Real seconds_f)
{
- data_str_ += str;
+ seconds_ = seconds_f;
}
-void
-Midi_chunk::set( String header_str, String data_str, String footer_str )
+string
+Midi_duration::to_string () const
{
- data_str_ = data_str;
- footer_str_ = footer_str;
- header_str_ = header_str;
+ return string ("<duration: ") + ::to_string (seconds_) + ">";
}
-
-String
-Midi_chunk::str() const
+
+Midi_instrument::Midi_instrument (Audio_instrument *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- String str = header_str_;
- String length_str = String_convert::i2hex_str( data_str_.length_i() + footer_str_.length_i(), 8, '0' );
- length_str = String_convert::hex2bin_str( length_str );
- str += length_str;
- str += data_str_;
- str += footer_str_;
- return str;
+ audio_->str_ = String_convert::to_lower (audio_->str_);
}
-Midi_duration::Midi_duration( Real seconds_f )
+string
+Midi_instrument::to_string () const
{
- seconds_f_ = seconds_f;
+ 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);
+ if (found)
+ program_byte = (Byte) scm_to_int (program);
+ else
+ warning (_f ("no such MIDI instrument: `%s'", audio_->str_.c_str ()));
+
+ string str = ::to_string ((char) (0xc0 + channel_)); //YIKES! FIXME : Should be track. -rz
+ str += ::to_string ((char)program_byte);
+ return str;
}
-String
-Midi_duration::str() const
+Midi_item::Midi_item ()
{
- return String( "<duration: " ) + String( seconds_f_ ) + ">";
}
-Midi_header::Midi_header( int format_i, int tracks_i, int clocks_per_4_i )
+Midi_channel_item::Midi_channel_item (Audio_item *ai)
+ : channel_ (ai->channel_)
{
- String str;
-
- String format_str = String_convert::i2hex_str( format_i, 4, '0' );
- str += String_convert::hex2bin_str( format_str );
-
- String tracks_str = String_convert::i2hex_str( tracks_i, 4, '0' );
- str += String_convert::hex2bin_str( tracks_str );
+}
- String tempo_str = String_convert::i2hex_str( clocks_per_4_i, 4, '0' );
- str += String_convert::hex2bin_str( tempo_str );
+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_)
+{
+}
+
+Midi_item::~Midi_item ()
+{
+}
- set( "MThd", str, "" );
+Midi_channel_item::~Midi_channel_item ()
+{
}
-String
-Midi_item::i2varint_str( int i )
+Midi_control_function_value_change::~Midi_control_function_value_change ()
{
- int buffer_i = i & 0x7f;
- while ( (i >>= 7) > 0 ) {
- buffer_i <<= 8;
- buffer_i |= 0x80;
- buffer_i += (i & 0x7f);
+}
+
+string
+int2midi_varint_string (int i)
+{
+ int buffer = i & 0x7f;
+ while ((i >>= 7) > 0)
+ {
+ buffer <<= 8;
+ buffer |= 0x80;
+ buffer += (i & 0x7f);
}
- String str;
- while ( 1 ) {
- str += (char)buffer_i;
- if ( buffer_i & 0x80 )
- buffer_i >>= 8;
- else
- break;
+ string str;
+ while (1)
+ {
+ str += ::to_string ((char)buffer);
+ if (buffer & 0x80)
+ buffer >>= 8;
+ else
+ break;
}
- return str;
+ return str;
}
-void
-Midi_item::output_midi( Midi_stream& midi_stream_r ) const
+Midi_key::Midi_key (Audio_key *a)
+ : audio_ (a)
{
- midi_stream_r << str();
}
-Midi_key::Midi_key( int accidentals_i, int minor_i )
+string
+Midi_key::to_string () const
{
- accidentals_i_ = accidentals_i;
- minor_i_ = minor_i;
+ string str = "ff5902";
+ str += String_convert::int2hex (audio_->accidentals_, 2, '0');
+ if (audio_->major_)
+ str += String_convert::int2hex (0, 2, '0');
+ else
+ str += String_convert::int2hex (1, 2, '0');
+ return String_convert::hex2bin (str);
}
-String
-Midi_key::str() const
+Midi_time_signature::Midi_time_signature (Audio_time_signature *a)
+ : audio_ (a),
+ clocks_per_1_ (18)
{
- String str = "ff5902";
- str += String_convert::i2hex_str( accidentals_i_, 2, '0' );
- str += String_convert::i2hex_str( minor_i_, 2, '0' );
- return String_convert::hex2bin_str( str );
}
-Midi_note::Midi_note( Melodic_req* melreq_l, int channel_i, bool on_bo )
+string
+Midi_time_signature::to_string () const
{
- assert(melreq_l);
- pitch_i_ = melreq_l->pitch() + c0_pitch_i_c_;
- channel_i_ = channel_i;
-
- on_b_ = on_bo;
+ int num = abs (audio_->beats_);
+ if (num > 255)
+ {
+ warning (_ ("Time signature with more than 255 beats. Truncating"));
+ num = 255;
+ }
- dynamic_byte_ = 0x64;
- if ( on_b_ ) // poor man-s staff dynamics:
- dynamic_byte_ -= 0x10 * channel_i_;
- else
- dynamic_byte_ += 0x32; // 0x64 is supposed to be neutral, but let-s try
+ int den = audio_->one_beat_;
+
+ string str = "ff5804";
+ str += String_convert::int2hex (num, 2, '0');
+ str += String_convert::int2hex (intlog2 (den), 2, '0');
+ str += String_convert::int2hex (clocks_per_1_, 2, '0');
+ str += String_convert::int2hex (8, 2, '0');
+ return String_convert::hex2bin (str);
}
-String
-Midi_note::str() const
+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)))
{
- if ( pitch_i_ != INT_MAX ) {
- Byte status_byte = ( on_b_ ? 0x90 : 0x80 ) + channel_i_;
- String str = String( (char)status_byte );
- str += (char)pitch_i_;
- // poor man-s staff dynamics:
- str += (char)dynamic_byte_;
- return str;
- }
- return String( "" );
}
-Midi_tempo::Midi_tempo( int per_minute_4_i )
+int
+Midi_note::get_fine_tuning () const
+{
+ Rational tune = (audio_->pitch_.tone_pitch ()
+ + audio_->transposing_.tone_pitch ()) * Rational (2);
+ tune -= Rational (get_semitone_pitch ());
+
+ tune *= PITCH_WHEEL_SEMITONE;
+ return (int) double (tune);
+}
+
+int
+Midi_note::get_semitone_pitch () const
{
- per_minute_4_i_ = per_minute_4_i;
+ double tune = double ((audio_->pitch_.tone_pitch ()
+ + audio_->transposing_.tone_pitch ()) * Rational (2));
+ return int (rint (tune));
}
-String
-Midi_tempo::str() const
+string
+Midi_note::to_string () const
{
- int useconds_per_4_i = 60 * (int)1e6 / per_minute_4_i_;
- String str = "ff5103";
- str += String_convert::i2hex_str( useconds_per_4_i, 6, '0' );
- return String_convert::hex2bin_str( str );
+ Byte status_byte = (char) (0x90 + channel_);
+ string str = "";
+ int finetune;
+
+ // print warning if fine tuning was needed, HJJ
+ if (get_fine_tuning () != 0)
+ {
+ finetune = PITCH_WHEEL_CENTER + get_fine_tuning ();
+
+ str += ::to_string ((char) (0xE0 + channel_));
+ str += ::to_string ((char) (finetune & 0x7F));
+ str += ::to_string ((char) (finetune >> 7));
+ str += ::to_string ((char) (0x00));
+ }
+
+ str += ::to_string ((char) status_byte);
+ str += ::to_string ((char) (get_semitone_pitch () + c0_pitch_));
+ str += ::to_string ((char) dynamic_byte_);
+
+ return str;
}
-Midi_time::Midi_time( int num_i, int den_i, int clocks_per_1_i )
+Midi_note_off::Midi_note_off (Midi_note *n)
+ : Midi_note (n->audio_)
{
- num_i_ = num_i;
- den_i_ = den_i;
- clocks_per_1_i_ = clocks_per_1_i;
+ on_ = n;
+ channel_ = n->channel_;
+
+ // use note_on with velocity=0 instead of note_off
+ aftertouch_byte_ = 0;
}
-String
-Midi_time::str() const
+string
+Midi_note_off::to_string () const
{
- String str = "ff5804";
- str += String_convert::i2hex_str( num_i_, 2, '0' );
- str += String_convert::i2hex_str( intlog2( den_i_ ) , 2, '0' );
- str += String_convert::i2hex_str( clocks_per_1_i_, 2, '0' );
- str += String_convert::i2hex_str( 8, 2, '0' );
- return String_convert::hex2bin_str( str );
+ Byte status_byte = (char) (0x90 + channel_);
+
+ string str = ::to_string ((char)status_byte);
+ str += ::to_string ((char) (get_semitone_pitch () + Midi_note::c0_pitch_));
+ str += ::to_string ((char)aftertouch_byte_);
+
+ if (get_fine_tuning () != 0)
+ {
+ // 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 >> 7));
+ }
+
+ return str;
}
-Midi_text::Midi_text( Midi_text::Type type, String text_str )
+Midi_dynamic::Midi_dynamic (Audio_dynamic *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- type_ = type;
- text_str_ = text_str;
}
-String
-Midi_text::str() const
+string
+Midi_dynamic::to_string () const
{
- String str = "ff" + String_convert::i2hex_str( type_, 2, '0' );
- str = String_convert::hex2bin_str( str );
- str += i2varint_str( text_str_.length_i() );
- str += text_str_;
- return str;
+ 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;
+
+ 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_track::Midi_track( int number_i )
+Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
-// 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_i_ = number_i;
-
- char const* data_ch_c_l = ""
-// "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
+Midi_piano_pedal::to_string () const
+{
+ Byte status_byte = (char) (0xB0 + channel_);
+ string str = ::to_string ((char)status_byte);
+
+ if (audio_->type_string_ == "Sostenuto")
+ str += ::to_string ((char)0x42);
+ else if (audio_->type_string_ == "Sustain")
+ str += ::to_string ((char)0x40);
+ else if (audio_->type_string_ == "UnaCorda")
+ str += ::to_string ((char)0x43);
- String data_str;
- // only for format 0 (currently using format 1)?
- data_str += String_convert::hex2bin_str( data_ch_c_l );
+ int pedal = ((1 - audio_->dir_) / 2) * 0x7f;
+ str += ::to_string ((char)pedal);
+ return str;
+}
- char const* footer_ch_c_l = "00" "ff2f" "00";
- String footer_str = String_convert::hex2bin_str( footer_ch_c_l );
+Midi_tempo::Midi_tempo (Audio_tempo *a)
+ : audio_ (a)
+{
+}
- set( "MTrk", data_str, footer_str );
+string
+Midi_tempo::to_string () const
+{
+ int useconds_per_4 = 60 * (int)1e6 / audio_->per_minute_4_;
+ string str = "ff5103";
+ str += String_convert::int2hex (useconds_per_4, 6, '0');
+ return String_convert::hex2bin (str);
}
-void
-Midi_track::add( int delta_time_i, String event_str )
+Midi_text::Midi_text (Audio_text *a)
+ : audio_ (a)
{
- assert(delta_time_i >= 0);
- Midi_chunk::add( i2varint_str( delta_time_i ) + event_str );
}
-void
-Midi_track::add( Moment delta_time_moment, Midi_item* mitem_l )
+string
+Midi_text::to_string () const
{
- // use convention of 384 clocks per 4
- // use Duration_convert
- int delta_time_i = delta_time_moment * Moment( 384 ) / Moment( 1, 4 );
- add( delta_time_i, mitem_l->str() );
+ string str = "ff" + String_convert::int2hex (audio_->type_, 2, '0');
+ str = String_convert::hex2bin (str);
+ str += int2midi_varint_string (audio_->text_string_.length ());
+ str += audio_->text_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
+ { 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 ();
+}
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