X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmidi-item.cc;h=1fd33773adf9123177d1eaa25bffb9186e8b3e53;hb=1e66bfb9ec0ebc1b7c09ad9f2256bd77f2230269;hp=af7ec3cc199729adff3581b0aa9dc3acaf25b0ae;hpb=c4621aa165c30daf7f893148628d747ca2b7fd7e;p=lilypond.git diff --git a/lily/midi-item.cc b/lily/midi-item.cc index af7ec3cc19..1fd33773ad 100644 --- a/lily/midi-item.cc +++ b/lily/midi-item.cc @@ -1,206 +1,418 @@ -// -// midiitem.cc -// -// source file of the LilyPond music typesetter -// -// (c) 1997 Jan Nieuwenhuizen - -#include -#include "proto.hh" -#include "plist.hh" -#include "p-col.hh" -#include "debug.hh" +/* + midi-item.cc -- implement Midi items. + + source file of the GNU LilyPond music typesetter + + (c) 1997--2004 Jan Nieuwenhuizen + */ + +#include "warn.hh" +#include "main.hh" #include "misc.hh" #include "string.hh" #include "string-convert.hh" -#include "request.hh" -#include "musical-request.hh" -#include "voice.hh" #include "midi-item.hh" #include "midi-stream.hh" +#include "audio-item.hh" +#include "duration.hh" +#include "scm-option.hh" -Midi_chunk::Midi_chunk() +#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; } void -Midi_chunk::add( String str ) +Midi_chunk::set (String header_string, String data_string, String footer_string) { - data_str_ += str; + data_string_ = data_string; + footer_string_ = footer_string; + header_string_ = header_string; +} + +String +Midi_chunk::data_string () const +{ + return data_string_; } -void -Midi_chunk::set( String header_str, String data_str, String footer_str ) +String +Midi_chunk::to_string () const { - data_str_ = data_str; - footer_str_ = footer_str; - header_str_ = header_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; } - + +Midi_duration::Midi_duration (Real seconds_f) +{ + 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_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 = int (rat_dt); + + 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_header::Midi_header (int format_i, int tracks_i, int clocks_per_4_i) { - String str; + String str; - String format_str = String_convert::i2hex_str( format_i, 4, '0' ); - str += String_convert::hex2bin_str( format_str ); + String format_string = String_convert::int2hex (format_i, 4, '0'); + str += String_convert::hex2bin (format_string); - String tracks_str = String_convert::i2hex_str( tracks_i, 4, '0' ); - str += String_convert::hex2bin_str( tracks_str ); + String tracks_string = String_convert::int2hex (tracks_i, 4, '0'); + str += String_convert::hex2bin (tracks_string); - String tempo_str = String_convert::i2hex_str( clocks_per_4_i, 4, '0' ); - str += String_convert::hex2bin_str( tempo_str ); + String tempo_string = String_convert::int2hex (clocks_per_4_i, 4, '0'); + str += String_convert::hex2bin (tempo_string); - set( "MThd", str, "" ); + set ("MThd", str, ""); +} + +Midi_instrument::Midi_instrument (Audio_instrument* a) +{ + audio_ = a; + audio_->str_.to_lower (); } String -Midi_item::i2varint_str( int i ) +Midi_instrument::to_string () const { - int buffer_i = i & 0x7f; - while ( (i >>= 7) > 0 ) { - buffer_i <<= 8; - buffer_i |= 0x80; - buffer_i += (i & 0x7f); + Byte program_byte = 0; + bool found = false; + + /* + UGH. don't use eval. + */ + SCM proc = ly_scheme_function ("midi-program"); + SCM program = gh_call1 (proc, ly_symbol2scm (audio_->str_.to_str0 ())); + found = (program != SCM_BOOL_F); + if (found) + program_byte = gh_scm2int (program); + else + warning (_f ("no such MIDI instrument: `%s'", audio_->str_.to_str0 ())); + + 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 () +{ + channel_ = 0; +} + +Midi_item::~Midi_item () +{ +} + +String +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; } -void -Midi_item::output_midi( Midi_stream& midi_stream_r ) const +Midi_key::Midi_key (Audio_key*a) +{ + audio_ = a; +} + +String +Midi_key::to_string () const { - midi_stream_r << 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_key::Midi_key( int accidentals_i, int minor_i ) +Midi_time_signature::Midi_time_signature (Audio_time_signature* a) { - accidentals_i_ = accidentals_i; - minor_i_ = minor_i; + audio_ = a; + clocks_per_1_ = 18; } String -Midi_key::str() const +Midi_time_signature::to_string () const { - 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 ); + int num = audio_->beats_; + 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); } -Midi_note::Midi_note( Melodic_req* melreq_l, int channel_i, bool on_bo ) +Midi_note::Midi_note (Audio_note* a) { - assert(melreq_l); - pitch_i_ = melreq_l->pitch() + c0_pitch_i_c_; - channel_i_ = channel_i; - - on_b_ = on_bo; + audio_ = a; + dynamic_byte_ = 0x7f; +} - 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 +Moment +Midi_note::get_length () const +{ + Moment m = audio_->length_mom_; + return m; +} + +int +Midi_note::get_fine_tuning () const +{ + int ft = audio_->pitch_.quartertone_pitch (); + ft -= 2 * audio_->pitch_.semitone_pitch (); + ft *= 50; // 1 quarter tone = 50 cents + return ft; +} + +int +Midi_note::get_pitch () const +{ + int p = audio_->pitch_.semitone_pitch () + audio_->transposing_; + if (p == INT_MAX) + { + warning (_ ("silly pitch")); + p = 0; + } + return p; } String -Midi_note::str() const -{ - 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; +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_) +{ + 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; +} + +String +Midi_note_off::to_string () const +{ + Byte status_byte = (char) (0x80 + channel_); + + String str = ::to_string ((char)status_byte); + str += ::to_string ((char) (get_pitch () + Midi_note::c0_pitch_i_)); + 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 String( "" ); + + return str; } -Midi_tempo::Midi_tempo( int per_minute_4_i ) +Midi_dynamic::Midi_dynamic (Audio_dynamic* a) { - per_minute_4_i_ = per_minute_4_i; + audio_ = a; } String -Midi_tempo::str() const +Midi_dynamic::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) (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_time::Midi_time( int num_i, int den_i, int clocks_per_1_i ) +Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal* a) { - num_i_ = num_i; - den_i_ = den_i; - clocks_per_1_i_ = clocks_per_1_i; + audio_ = a; } String -Midi_time::str() const +Midi_piano_pedal::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) (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); + + int pedal = ((1 - audio_->dir_) / 2) * 0x7f; + str += ::to_string ((char)pedal); + return str; } -Midi_text::Midi_text( Midi_text::Type type, String text_str ) +Midi_tempo::Midi_tempo (Audio_tempo* a) { - type_ = type; - text_str_ = text_str; + audio_ = a; } String -Midi_text::str() const +Midi_tempo::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; + 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_track::Midi_track( int number_i ) +Midi_text::Midi_text (Audio_text* 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 + audio_ = a; +} + +String +Midi_text::to_string () const +{ + 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_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 @@ -211,45 +423,48 @@ Midi_track::Midi_track( int number_i ) // mi = 0: major key // mi = 1: minor key - number_i_ = number_i; + number_ = 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" + 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_str; - // only for format 0 (currently using format 1)? - data_str += String_convert::hex2bin_str( data_ch_C ); + String data_string; + // only for format 0 (currently using format 1)? + data_string += String_convert::hex2bin (data_str0); - char const* footer_ch_C = "00" "ff2f" "00"; - String footer_str = String_convert::hex2bin_str( footer_ch_C ); + char const* footer_str0 = "00" "ff2f" "00"; + String footer_string = String_convert::hex2bin (footer_str0); - set( "MTrk", data_str, footer_str ); + set ("MTrk", data_string, footer_string); } void -Midi_track::add( int delta_time_i, String event_str ) +Midi_track::add (Moment delta_time_mom, Midi_item* midi) { - if ( delta_time_i < 0 ) { - cout << String_convert::bin2hex_str( i2varint_str( delta_time_i ) ) << endl; - cout << String_convert::bin2hex_str( event_str ) << endl; - } - assert(delta_time_i >= 0); - Midi_chunk::add( i2varint_str( delta_time_i ) + event_str ); + 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)); } -void -Midi_track::add( Moment delta_time_moment, Midi_item* mitem_l ) +String +Midi_track::data_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 = Midi_chunk::data_string (); + if (midi_debug_global_b) + str += "\n"; + for (Cons *i=event_p_list_.head_; i; i = i->next_) + { + str += i->car_->to_string (); + if (midi_debug_global_b) + str += "\n"; + } + return str; } -