X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmidi-item.cc;h=6b372e94728e5e3813a06868253fb73de6175cdb;hb=75eebcb49e52d296b1da3e1074e0825d2c780db4;hp=999a45d0c660040b29fef938b006423290cb7deb;hpb=1a66290a98e7de8d6d41485b5b71a9f7e1fe35c7;p=lilypond.git diff --git a/lily/midi-item.cc b/lily/midi-item.cc index 999a45d0c6..6b372e9472 100644 --- a/lily/midi-item.cc +++ b/lily/midi-item.cc @@ -3,530 +3,475 @@ source file of the GNU LilyPond music typesetter - (c) 1997 Jan Nieuwenhuizen - */ + (c) 1997--2006 Jan Nieuwenhuizen +*/ -#include "proto.hh" -#include "plist.hh" -#include "debug.hh" +#include "midi-item.hh" + +#include "warn.hh" +#include "main.hh" #include "misc.hh" -#include "string.hh" #include "string-convert.hh" -#include "command-request.hh" -#include "musical-request.hh" -#include "midi-item.hh" #include "midi-stream.hh" -#include "audio-item.hh" +#include "duration.hh" +#include "program-option.hh" + +#include "killing-cons.tcc" + +#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) + +Midi_item * +Midi_item::get_midi (Audio_item *a) +{ + if (Audio_key *i = dynamic_cast (a)) + return new Midi_key (i); + else if (Audio_instrument *i = dynamic_cast (a)) + return i->str_.length () ? new Midi_instrument (i) : 0; + else if (Audio_note *i = dynamic_cast (a)) + return new Midi_note (i); + else if (Audio_dynamic *i = dynamic_cast (a)) + return new Midi_dynamic (i); + else if (Audio_piano_pedal *i = dynamic_cast (a)) + return new Midi_piano_pedal (i); + else if (Audio_tempo *i = dynamic_cast (a)) + return new Midi_tempo (i); + else if (Audio_time_signature *i = dynamic_cast (a)) + return new Midi_time_signature (i); + else if (Audio_text *i = dynamic_cast (a)) + //return i->text_string_.length () ? new Midi_text (i) : 0; + return new Midi_text (i); + else + assert (0); + + // isn't C++ grand? + return 0; +} -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); +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; +} -Midi_chunk::Midi_chunk() - : Midi_item (0) +String +Midi_chunk::data_string () const { + return data_string_; } -void -Midi_chunk::add (String str) +String +Midi_chunk::to_string () const { - data_str_ += str; + 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; } -void -Midi_chunk::set (String header_str, String data_str, String footer_str) +Midi_duration::Midi_duration (Real seconds_f) { - data_str_ = data_str; - footer_str_ = footer_str; - header_str_ = header_str; + seconds_ = seconds_f; } - + String -Midi_chunk::str() const +Midi_duration::to_string () 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; + return String (""; } -Midi_duration::Midi_duration (Real seconds_f) - : Midi_item (0) +Midi_event::Midi_event (Moment delta_mom, Midi_item *midi) { - seconds_f_ = seconds_f; + delta_mom_ = delta_mom; + midi_ = midi; } +/* + ugh. midi output badly broken since grace note hackage. +*/ String -Midi_duration::str() const +Midi_event::to_string () const { - return String (""; + Rational rat_dt = (delta_mom_.main_part_ * Rational (384) + + delta_mom_.grace_part_ * Rational (100)) * Rational (4); + int delta_i = rat_dt.to_int (); + + String delta_string = Midi_item::i2varint_string (delta_i); + String midi_string = midi_->to_string (); + assert (midi_string.length ()); + return delta_string + midi_string; } 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 str; + + String format_string = String_convert::int2hex (format_i, 4, '0'); + str += String_convert::hex2bin (format_string); + + String tracks_string = String_convert::int2hex (tracks_i, 4, '0'); + str += String_convert::hex2bin (tracks_string); + + String tempo_string = String_convert::int2hex (clocks_per_4_i, 4, '0'); + str += String_convert::hex2bin (tempo_string); + + set ("MThd", str, ""); +} + +Midi_instrument::Midi_instrument (Audio_instrument *a) +{ + audio_ = a; + audio_->str_.to_lower (); +} + String -Midi_instrument::str() const +Midi_instrument::to_string () 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; - } + Byte program_byte = 0; + bool found = false; - if ( !program_byte) - return String (""); + /* + UGH. don't use eval. + */ + SCM proc = ly_lily_module_constant ("midi-program"); + SCM program = scm_call_1 (proc, ly_symbol2scm (audio_->str_.to_str0 ())); + found = (program != SCM_BOOL_F); + if (found) + program_byte = scm_to_int (program); + else + warning (_f ("no such MIDI instrument: `%s'", audio_->str_.to_str0 ())); - String str = String ((char)( 0xc0 + channel_i_) ); - str += String ((char)program_byte); - return str; + String str = ::to_string ((char) (0xc0 + channel_)); //YIKES! FIXME : Should be track. -rz + str += ::to_string ((char)program_byte); + return str; } -Midi_item::Midi_item (Audio_item* audio_item_l) +Midi_item::Midi_item () { - audio_item_l_ = audio_item_l; - channel_i_ = 0; + channel_ = 0; } -void -Midi_item::output (Midi_stream* midi_stream_l) const +Midi_item::~Midi_item () { - *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); +Midi_item::i2varint_string (int i) +{ + int buffer_i = i & 0x7f; + while ((i >>= 7) > 0) + { + buffer_i <<= 8; + buffer_i |= 0x80; + buffer_i += (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_i); + if (buffer_i & 0x80) + buffer_i >>= 8; + else + break; } - return str; + return str; } -Midi_key::Midi_key (Audio_item* audio_item_l) - : Midi_item (audio_item_l) +Midi_key::Midi_key (Audio_key *a) { + audio_ = a; } String -Midi_key::str() const +Midi_key::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(); - - // midi cannot handle non-conventional keys - if ( flats_i && sharps_i) - return ""; - int accidentals_i = sharps_i - flats_i; - - 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 = "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); } -Midi_meter::Midi_meter (Audio_item* audio_item_l) - : Midi_item (audio_item_l) +Midi_time_signature::Midi_time_signature (Audio_time_signature *a) { - clocks_per_1_i_ = 18; + audio_ = a; + clocks_per_1_ = 18; } String -Midi_meter::str() const +Midi_time_signature::to_string () const { - Meter_change_req* m = audio_item_l_->req_l_->command()->meterchange (); - int num_i = m->beats_i_; - int den_i = m->one_beat_i_; + int num = audio_->beats_; + int den = audio_->one_beat_; - 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); + 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); } -Midi_note::Midi_note (Audio_item* audio_item_l) - : Midi_item (audio_item_l) +Midi_note::Midi_note (Audio_note *a) { - dynamic_byte_ = 0x7f; + audio_ = a; + dynamic_byte_ = 0x7f; } Moment -Midi_note::duration() const +Midi_note::get_length () const +{ + Moment m = audio_->length_mom_; + return m; +} + +int +Midi_note::get_fine_tuning () const { - return audio_item_l_->req_l_->musical()->rhythmic ()->duration (); + int ft = audio_->pitch_.quartertone_pitch (); + ft -= 2 * audio_->pitch_.semitone_pitch (); + ft *= 50; // 1 quarter tone = 50 cents + return ft; } int -Midi_note::pitch_i() const +Midi_note::get_pitch () const { - return audio_item_l_->req_l_->musical()->melodic ()->pitch (); + int p = audio_->pitch_.semitone_pitch () + audio_->transposing_; + if (p == INT_MAX) + { + warning (_ ("silly pitch")); + p = 0; + } + return p; } String -Midi_note::str() const +Midi_note::to_string () const +{ + Byte status_byte = (char) (0x90 + channel_); + String str = ""; + int finetune; + + // 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); + + 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_pitch () + c0_pitch_i_)); + str += ::to_string ((char)dynamic_byte_); + + return str; +} + +Midi_note_off::Midi_note_off (Midi_note *n) + : Midi_note (n->audio_) { - if ( pitch_i() == INT_MAX) - return String (""); + 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; +} - Byte status_byte = (char)( 0x90 + channel_i_); +String +Midi_note_off::to_string () const +{ + Byte status_byte = (char) (0x80 + channel_); - String str = String ((char)status_byte); - str += (char)( pitch_i() + c0_pitch_i_c_); + String str = ::to_string ((char)status_byte); + str += ::to_string ((char) (get_pitch () + Midi_note::c0_pitch_i_)); + str += ::to_string ((char)aftertouch_byte_); - // poor man's staff dynamics: - str += (char)( dynamic_byte_ - 0x10 * channel_i_); + 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; + return str; } -Midi_note_off::Midi_note_off (Midi_note* midi_note_l) - : Midi_item (midi_note_l->audio_item_l_) +Midi_dynamic::Midi_dynamic (Audio_dynamic *a) { - // 0x64 is supposed to be neutral, but let's try - aftertouch_byte_ = 0x64; - channel_i_ = midi_note_l->channel_i_; + audio_ = a; } -int -Midi_note_off::pitch_i() const +String +Midi_dynamic::to_string () const { - return audio_item_l_->req_l_->musical()->melodic ()->pitch (); + 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) +{ + audio_ = a; } String -Midi_note_off::str() const +Midi_piano_pedal::to_string () const { - if ( pitch_i() == INT_MAX) - return String (""); + Byte status_byte = (char) (0xB0 + channel_); + String str = ::to_string ((char)status_byte); - Byte status_byte = (char)( 0x80 + channel_i_); + 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 str = String ((char)status_byte); - str += (char)( pitch_i() + Midi_note::c0_pitch_i_c_); - str += (char)aftertouch_byte_; - return str; + int pedal = ((1 - audio_->dir_) / 2) * 0x7f; + str += ::to_string ((char)pedal); + return str; } -Midi_tempo::Midi_tempo (Audio_item* audio_item_l) - : Midi_item (audio_item_l) +Midi_tempo::Midi_tempo (Audio_tempo *a) { - per_minute_4_i_ = ( (Audio_tempo*)audio_item_l_)->per_minute_4_i_; + audio_ = a; } -Midi_tempo::Midi_tempo (int per_minute_4_i) - : Midi_item (0) +String +Midi_tempo::to_string () const { - per_minute_4_i_ = per_minute_4_i; + int useconds_per_4_i = 60 * (int)1e6 / audio_->per_minute_4_; + String str = "ff5103"; + str += String_convert::int2hex (useconds_per_4_i, 6, '0'); + return String_convert::hex2bin (str); +} + +Midi_text::Midi_text (Audio_text *a) +{ + audio_ = a; } String -Midi_tempo::str() const +Midi_text::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); + String str = "ff" + String_convert::int2hex (audio_->type_, 2, '0'); + str = String_convert::hex2bin (str); + str += i2varint_string (audio_->text_string_.length ()); + str += audio_->text_string_; + return str; } -Midi_text::Midi_text (Audio_item* audio_item_l) - : Midi_item (audio_item_l) +Midi_track::Midi_track () + : Midi_chunk () { - text_str_ = ( (Audio_text*)audio_item_l_)->text_str_; - type_ = (Type)( (Audio_text*)audio_item_l_)->type_; + // 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); } -Midi_text::Midi_text (Midi_text::Type type, String text_str) - : Midi_item (0) +void +Midi_track::add (Moment delta_time_mom, Midi_item *midi) { - text_str_ = text_str; - type_ = type; + assert (delta_time_mom >= Moment (0)); + + Midi_event *e = new Midi_event (delta_time_mom, midi); + event_p_list_.append (new Killing_cons (e, 0)); } String -Midi_text::str() 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; -} - -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_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" - ; - - String data_str; - // only for format 0 (currently using format 1)? - data_str += String_convert::hex2bin_str (data_ch_C); - - char const* footer_ch_C = "00" "ff2f" "00"; - String footer_str = String_convert::hex2bin_str (footer_ch_C); - - set ("MTrk", data_str, footer_str); -} - -void -Midi_track::add (int delta_time_i, String event_str) -{ - 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_track::data_string () const +{ + String str = Midi_chunk::data_string (); + if (do_midi_debugging_global) + str += "\n"; + for (Cons *i = event_p_list_.head_; i; i = i->next_) + { + str += i->car_->to_string (); + if (do_midi_debugging_global) + str += "\n"; } - 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 (); } -