/*
- 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 Jan Nieuwenhuizen <jan@digicash.com>
- */
+ 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 "proto.hh"
-#include "plist.hh"
-#include "debug.hh"
-#include "misc.hh"
-#include "string.hh"
-#include "string-convert.hh"
-#include "command-request.hh"
-#include "musical-request.hh"
#include "midi-item.hh"
+
+#include "duration.hh"
+#include "international.hh"
+#include "libc-extension.hh"
+#include "main.hh"
#include "midi-stream.hh"
-#include "audio-item.hh"
+#include "misc.hh"
+#include "program-option.hh"
+#include "string-convert.hh"
+#include "warn.hh"
-IMPLEMENT_IS_TYPE_B(Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_chunk, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_duration, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_header, Midi_chunk);
-IMPLEMENT_IS_TYPE_B1(Midi_instrument, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_key,Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_meter, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_note, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_note_off, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_tempo, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_text, Midi_item);
-IMPLEMENT_IS_TYPE_B1(Midi_track, Midi_chunk);
+#define PITCH_WHEEL_CENTER 0x2000
+#define PITCH_WHEEL_SEMITONE 0X1000
-Midi_chunk::Midi_chunk()
- : Midi_item( 0 )
+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;
-}
-
-void
-Midi_chunk::set( String header_str, String data_str, String footer_str )
-{
- data_str_ = data_str;
- footer_str_ = footer_str;
- header_str_ = header_str;
-}
-
-String
-Midi_chunk::str() const
-{
- 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;
-}
-
-Midi_duration::Midi_duration( Real seconds_f )
- : Midi_item( 0 )
-{
- seconds_f_ = seconds_f;
-}
-
-String
-Midi_duration::str() const
-{
- return String( "<duration: " ) + String( seconds_f_ ) + ">";
-}
-
-Midi_header::Midi_header( int format_i, int tracks_i, int clocks_per_4_i )
- : Midi_chunk()
-{
- 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 );
-
- set( "MThd", str, "" );
-}
-
-char const* const instrument_name_sz_a_[ ] = {
-
- /* default is usually piano */
- /* 0 */ "piano",
-
- /* (1-8 piano) */
- /* 1 */ "acoustic grand",
- /* 2 */ "bright acoustic",
- /* 3 */ "electric grand",
- /* 4 */ "honky-tonk",
- /* 5 */ "electric piano 1",
- /* 6 */ "electric piano 2",
- /* 7 */ "harpsichord",
- /* 8 */ "clav",
-
- /* (9-16 chrom percussion) */
- /* 9 */ "celesta",
- /* 10 */ "glockenspiel",
- /* 11 */ "music box",
- /* 12 */ "vibraphone",
- /* 13 */ "marimba",
- /* 14 */ "xylophone",
- /* 15 */ "tubular bells",
- /* 16 */ "dulcimer",
-
- /* (17-24 organ) */
- /* 17 */ "drawbar organ",
- /* 18 */ "percussive organ",
- /* 19 */ "rock organ",
- /* 20 */ "church organ",
- /* 21 */ "reed organ",
- /* 22 */ "accoridan",
- /* 23 */ "harmonica",
- /* 24 */ "tango accordian",
-
- /* (25-32 guitar) */
- /* 25 */ "acoustic guitar(nylon)",
- /* 26 */ "acoustic guitar(steel)",
- /* 27 */ "electric guitar(jazz)",
- /* 28 */ "electric guitar(clean)",
- /* 29 */ "electric guitar(muted)",
- /* 30 */ "overdriven guitar",
- /* 31 */ "distortion guitar",
- /* 32 */ "guitar harmonics",
-
- /* (33-40 bass) */
- /* 33 */ "acoustic bass",
- /* 34 */ "electric bass(finger)",
- /* 35 */ "electric bass(pick)",
- /* 36 */ "fretless bass",
- /* 37 */ "slap bass 1",
- /* 38 */ "slap bass 2",
- /* 39 */ "synth bass 1",
- /* 40 */ "synth bass 2",
-
- /* (41-48 strings) */
- /* 41 */ "violin",
- /* 42 */ "viola",
- /* 43 */ "cello",
- /* 44 */ "contrabass",
- /* 45 */ "tremolo strings",
- /* 46 */ "pizzicato strings",
- /* 47 */ "orchestral strings",
- /* 48 */ "timpani",
-
- /* (49-56 ensemble) */
- /* 49 */ "string ensemble 1",
- /* 50 */ "string ensemble 2",
- /* 51 */ "synthstrings 1",
- /* 52 */ "synthstrings 2",
- /* 53 */ "choir aahs",
- /* 54 */ "voice oohs",
- /* 55 */ "synth voice",
- /* 56 */ "orchestra hit",
-
- /* (57-64 brass) */
- /* 57 */ "trumpet",
- /* 58 */ "trombone",
- /* 59 */ "tuba",
- /* 60 */ "muted trumpet",
- /* 61 */ "french horn",
- /* 62 */ "brass section",
- /* 63 */ "synthbrass 1",
- /* 64 */ "synthbrass 2",
-
- /* (65-72 reed) */
- /* 65 */ "soprano sax",
- /* 66 */ "alto sax",
- /* 67 */ "tenor sax",
- /* 68 */ "baritone sax",
- /* 69 */ "oboe",
- /* 70 */ "english horn",
- /* 71 */ "bassoon",
- /* 72 */ "clarinet",
-
- /* (73-80 pipe) */
- /* 73 */ "piccolo",
- /* 74 */ "flute",
- /* 75 */ "recorder",
- /* 76 */ "pan flute",
- /* 77 */ "blown bottle",
- /* 78 */ "skakuhachi",
- /* 79 */ "whistle",
- /* 80 */ "ocarina",
-
- /* (81-88 synth lead) */
- /* 81 */ "lead 1 (square)",
- /* 82 */ "lead 2 (sawtooth)",
- /* 83 */ "lead 3 (calliope)",
- /* 84 */ "lead 4 (chiff)",
- /* 85 */ "lead 5 (charang)",
- /* 86 */ "lead 6 (voice)",
- /* 87 */ "lead 7 (fifths)",
- /* 88 */ "lead 8 (bass+lead)",
-
- /* (89-96 synth pad) */
- /* 89 */ "pad 1 (new age)",
- /* 90 */ "pad 2 (warm)",
- /* 91 */ "pad 3 (polysynth)",
- /* 92 */ "pad 4 (choir)",
- /* 93 */ "pad 5 (bowed)",
- /* 94 */ "pad 6 (metallic)",
- /* 95 */ "pad 7 (halo)",
- /* 96 */ "pad 8 (sweep)",
-
- /* (97-104 synth effects) */
- /* 97 */ "fx 1 (rain)",
- /* 98 */ "fx 2 (soundtrack)",
- /* 99 */ "fx 3 (crystal)",
- /* 100 */ "fx 4 (atmosphere)",
- /* 101 */ "fx 5 (brightness)",
- /* 102 */ "fx 6 (goblins)",
- /* 103 */ "fx 7 (echoes)",
- /* 104 */ "fx 8 (sci-fi)",
-
- /* (105-112 ethnic) */
- /* 105 */ "sitar",
- /* 106 */ "banjo",
- /* 107 */ "shamisen",
- /* 108 */ "koto",
- /* 109 */ "kalimba",
- /* 110 */ "bagpipe",
- /* 111 */ "fiddle",
- /* 112 */ "shanai",
-
- /* (113-120 percussive) */
- /* 113 */ "tinkle bell",
- /* 114 */ "agogo",
- /* 115 */ "steel drums",
- /* 116 */ "woodblock",
- /* 117 */ "taiko drum",
- /* 118 */ "melodic tom",
- /* 119 */ "synth drum",
- /* 120 */ "reverse cymbal",
-
- /* (121-128 sound effects) */
- /* 121 */ "guitar fret noise",
- /* 122 */ "breath noise",
- /* 123 */ "seashore",
- /* 124 */ "bird tweet",
- /* 125 */ "telephone ring",
- /* 126 */ "helicopter",
- /* 127 */ "applause",
- /* 128 */ "gunshot",
- 0
-};
-
-Midi_instrument::Midi_instrument( int channel_i, String instrument_str )
- : Midi_item( 0 )
-{
- instrument_str_ = instrument_str;
- instrument_str_.to_lower();
- channel_i_ = channel_i;
-}
-
-String
-Midi_instrument::str() const
-{
- Byte program_byte = 0;
- for ( int i = 0; instrument_name_sz_a_[i]; i++ )
- if ( instrument_str_ == String(instrument_name_sz_a_[ i ] )) {
- program_byte = (Byte)i;
- break;
- }
-
- if ( !program_byte )
- return String( "" );
-
- String str = String( (char)( 0xc0 + channel_i_ ) );
- str += String( (char)program_byte );
- return str;
-}
-
-Midi_item::Midi_item( Audio_item* audio_item_l )
-{
- audio_item_l_ = audio_item_l;
- channel_i_ = 0;
-}
-
-void
-Midi_item::output( Midi_stream* midi_stream_l ) const
-{
- *midi_stream_l << str();
-}
-
-String
-Midi_item::i2varint_str( int i )
-{
- int buffer_i = i & 0x7f;
- while ( (i >>= 7) > 0 ) {
- buffer_i <<= 8;
- buffer_i |= 0x80;
- buffer_i += (i & 0x7f);
- }
+ seconds_ = seconds_f;
+}
- String str;
- while ( 1 ) {
- str += (char)buffer_i;
- if ( buffer_i & 0x80 )
- buffer_i >>= 8;
- else
- break;
- }
- return str;
+string
+Midi_duration::to_string () const
+{
+ return string ("<duration: ") + ::to_string (seconds_) + ">";
}
-Midi_key::Midi_key( Audio_item* audio_item_l )
- : Midi_item( audio_item_l )
+Midi_instrument::Midi_instrument (Audio_instrument *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
+ audio_->str_ = String_convert::to_lower (audio_->str_);
}
-String
-Midi_key::str() const
+string
+Midi_instrument::to_string () const
{
- Key_change_req* k = audio_item_l_->req_l_->command()->keychange();
- int sharps_i = k->sharps_i();
- int flats_i = k->flats_i();
+ Byte program_byte = 0;
+ bool found = false;
- // midi cannot handle non-conventional keys
- if ( flats_i && sharps_i )
- return "";
- int accidentals_i = sharps_i - flats_i;
+ 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 = "ff5902";
- str += String_convert::i2hex_str( accidentals_i, 2, '0' );
- int minor_i = k->minor_b();
- str += String_convert::i2hex_str( minor_i, 2, '0' );
- return String_convert::hex2bin_str( str );
+ string str = ::to_string ((char) (0xc0 + channel_)); //YIKES! FIXME : Should be track. -rz
+ str += ::to_string ((char)program_byte);
+ return str;
}
-Midi_meter::Midi_meter( Audio_item* audio_item_l )
- : Midi_item( audio_item_l )
+Midi_item::Midi_item ()
{
- clocks_per_1_i_ = 18;
}
-String
-Midi_meter::str() const
+Midi_channel_item::Midi_channel_item (Audio_item *ai)
+ : channel_ (ai->channel_)
{
- Meter_change_req* m = audio_item_l_->req_l_->command()->meterchange();
- int num_i = m->beats_i_;
- int den_i = m->one_beat_i_;
+}
- 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 );
+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_note::Midi_note( Audio_item* audio_item_l )
- : Midi_item( audio_item_l )
+Midi_item::~Midi_item ()
{
- dynamic_byte_ = 0x7f;
}
-Moment
-Midi_note::duration() const
+Midi_channel_item::~Midi_channel_item ()
{
- return audio_item_l_->req_l_->musical()->rhythmic()->duration();
}
-int
-Midi_note::pitch_i() const
+Midi_control_function_value_change::~Midi_control_function_value_change ()
{
- return audio_item_l_->req_l_->musical()->melodic()->pitch();
}
-String
-Midi_note::str() const
+string
+int2midi_varint_string (int i)
{
- if ( pitch_i() == INT_MAX )
- return String( "" );
+ int buffer = i & 0x7f;
+ while ((i >>= 7) > 0)
+ {
+ buffer <<= 8;
+ buffer |= 0x80;
+ buffer += (i & 0x7f);
+ }
- Byte status_byte = (char)( 0x90 + channel_i_ );
+ string str;
+ while (1)
+ {
+ str += ::to_string ((char)buffer);
+ if (buffer & 0x80)
+ buffer >>= 8;
+ else
+ break;
+ }
+ return str;
+}
- String str = String( (char)status_byte );
- str += (char)( pitch_i() + c0_pitch_i_c_ );
+Midi_key::Midi_key (Audio_key *a)
+ : audio_ (a)
+{
+}
- // poor man's staff dynamics:
- str += (char)( dynamic_byte_ - 0x10 * channel_i_ );
+string
+Midi_key::to_string () const
+{
+ 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);
+}
- return str;
+Midi_time_signature::Midi_time_signature (Audio_time_signature *a)
+ : audio_ (a),
+ clocks_per_1_ (18)
+{
}
-Midi_note_off::Midi_note_off( Midi_note* midi_note_l )
- : Midi_item( midi_note_l->audio_item_l_ )
+string
+Midi_time_signature::to_string () const
{
- // 0x64 is supposed to be neutral, but let's try
- aftertouch_byte_ = 0x64;
- channel_i_ = midi_note_l->channel_i_;
+ int num = abs (audio_->beats_);
+ if (num > 255)
+ {
+ 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');
+ str += String_convert::int2hex (clocks_per_1_, 2, '0');
+ str += String_convert::int2hex (8, 2, '0');
+ return String_convert::hex2bin (str);
}
-int
-Midi_note_off::pitch_i() 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)))
{
- return audio_item_l_->req_l_->musical()->melodic()->pitch();
}
-String
-Midi_note_off::str() const
+int
+Midi_note::get_fine_tuning () const
{
- if ( pitch_i() == INT_MAX )
- return String( "" );
+ Rational tune = (audio_->pitch_.tone_pitch ()
+ + audio_->transposing_.tone_pitch ()) * Rational (2);
+ tune -= Rational (get_semitone_pitch ());
- Byte status_byte = (char)( 0x80 + channel_i_ );
+ tune *= PITCH_WHEEL_SEMITONE;
+ return (int) double (tune);
+}
- String str = String( (char)status_byte );
- str += (char)( pitch_i() + Midi_note::c0_pitch_i_c_ );
- str += (char)aftertouch_byte_;
- return str;
+int
+Midi_note::get_semitone_pitch () const
+{
+ double tune = double ((audio_->pitch_.tone_pitch ()
+ + audio_->transposing_.tone_pitch ()) * Rational (2));
+ return int (rint (tune));
}
-Midi_tempo::Midi_tempo( Audio_item* audio_item_l )
- : Midi_item( audio_item_l )
+string
+Midi_note::to_string () const
{
- per_minute_4_i_ = ( (Audio_tempo*)audio_item_l_ )->per_minute_4_i_;
+ 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_tempo::Midi_tempo( int per_minute_4_i )
- : Midi_item( 0 )
+Midi_note_off::Midi_note_off (Midi_note *n)
+ : Midi_note (n->audio_)
{
- per_minute_4_i_ = per_minute_4_i;
+ on_ = n;
+ channel_ = n->channel_;
+
+ // use note_on with velocity=0 instead of note_off
+ aftertouch_byte_ = 0;
}
-String
-Midi_tempo::str() const
+string
+Midi_note_off::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 = ::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( Audio_item* audio_item_l )
- : Midi_item( audio_item_l )
+Midi_dynamic::Midi_dynamic (Audio_dynamic *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- text_str_ = ( (Audio_text*)audio_item_l_ )->text_str_;
- type_ = (Type)( (Audio_text*)audio_item_l_ )->type_;
}
-Midi_text::Midi_text( Midi_text::Type type, String text_str )
- : Midi_item( 0 )
+string
+Midi_dynamic::to_string () const
{
- text_str_ = text_str;
- type_ = type;
+ 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;
}
-String
-Midi_text::str() const
+Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal *a)
+ : Midi_channel_item (a),
+ audio_ (a)
{
- 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;
}
-Midi_track::Midi_track()
- : Midi_chunk()
+string
+Midi_piano_pedal::to_string () const
{
-// 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
+ 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);
- number_i_ = 0;
-
- char const* data_ch_C = ""
-// "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"
- ;
+ int pedal = ((1 - audio_->dir_) / 2) * 0x7f;
+ str += ::to_string ((char)pedal);
+ return str;
+}
+
+Midi_tempo::Midi_tempo (Audio_tempo *a)
+ : audio_ (a)
+{
+}
- String data_str;
- // only for format 0 (currently using format 1)?
- data_str += String_convert::hex2bin_str( data_ch_C );
+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);
+}
- char const* footer_ch_C = "00" "ff2f" "00";
- String footer_str = String_convert::hex2bin_str( footer_ch_C );
+Midi_text::Midi_text (Audio_text *a)
+ : audio_ (a)
+{
+}
- set( "MTrk", data_str, footer_str );
+string
+Midi_text::to_string () const
+{
+ 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;
}
-void
-Midi_track::add( int delta_time_i, String event_str )
+string
+Midi_control_function_value_change::to_string () const
{
- if ( delta_time_i < 0 ) {
- cout << String_convert::bin2hex_str( i2varint_str( delta_time_i ) ) << endl;
- cout << String_convert::bin2hex_str( event_str ) << endl;
+ // 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));
}
- assert(delta_time_i >= 0);
- Midi_chunk::add( i2varint_str( delta_time_i ) + event_str );
+ return str;
}
-void
-Midi_track::add( Moment delta_time_moment, Midi_item* mitem_l )
+char const *
+Midi_item::name () const
{
- // use convention of 384 clocks per 4
- // use Duration_convert
- int delta_time_i = delta_time_moment * Moment( 384 ) / Moment( 1, 4 );
- // ? int ( delta_time_moment * 4 * 384)
- add( delta_time_i, mitem_l->str() );
+ return this->class_name ();
}
-
projects / lilypond.git / blobdiff