X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmidi-item.cc;h=b2f1231ae19559364e849f9e397be2f789df8a4b;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=f13edbbd0a905ef2a331d67a480230cedd811d85;hpb=a6ee9dcd388111e842064a8d46ab06c4897a00d2;p=lilypond.git diff --git a/lily/midi-item.cc b/lily/midi-item.cc index f13edbbd0a..b2f1231ae1 100644 --- a/lily/midi-item.cc +++ b/lily/midi-item.cc @@ -1,154 +1,95 @@ /* - midi-item.cc -- implement Midi items. + midi-item.cc -- implement MIDI items. source file of the GNU LilyPond music typesetter - (c) 1997--2002 Jan Nieuwenhuizen - */ + (c) 1997--2008 Jan Nieuwenhuizen +*/ -#include "warn.hh" +#include "midi-item.hh" + +#include "duration.hh" +#include "international.hh" #include "main.hh" +#include "midi-stream.hh" #include "misc.hh" -#include "string.hh" +#include "program-option.hh" #include "string-convert.hh" -#include "midi-item.hh" -#include "midi-stream.hh" -#include "audio-item.hh" -#include "duration.hh" -#include "scm-option.hh" +#include "warn.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) +Midi_item * +Midi_item::get_midi (Audio_item *a) { - if (Audio_key* i = dynamic_cast (a)) + if (Audio_key *i = dynamic_cast (a)) return new Midi_key (i); - else if (Audio_instrument* i = dynamic_cast (a)) + 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)) + else if (Audio_note *i = dynamic_cast (a)) return new Midi_note (i); - else if (Audio_dynamic* i = dynamic_cast (a)) + else if (Audio_dynamic *i = dynamic_cast (a)) return new Midi_dynamic (i); - else if (Audio_piano_pedal* i = dynamic_cast (a)) + else if (Audio_piano_pedal *i = dynamic_cast (a)) return new Midi_piano_pedal (i); - else if (Audio_tempo* i = dynamic_cast (a)) + else if (Audio_tempo *i = dynamic_cast (a)) return new Midi_tempo (i); - else if (Audio_time_signature* i = dynamic_cast (a)) + 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; + else if (Audio_text *i = dynamic_cast (a)) return new Midi_text (i); else assert (0); - // isn't C++ grand? return 0; } -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; -} - -String -Midi_chunk::data_string () const -{ - return data_string_; -} -String -Midi_chunk::string () const -{ - 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_duration::string () const -{ - return String (""; -} - -Midi_event::Midi_event (Moment delta_mom, Midi_item* midi) -{ - delta_mom_ = delta_mom; - midi_ = midi; -} - -/* - ugh. midi output badly broken since grace note hackage. - */ -String -Midi_event::string () const -{ - 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_->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) +string +Midi_duration::to_string () const { - 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, ""); + return string (""; } -Midi_instrument::Midi_instrument (Audio_instrument* a) +Midi_instrument::Midi_instrument (Audio_instrument *a) { audio_ = a; - audio_->str_.to_lower (); + audio_->str_ = String_convert::to_lower (audio_->str_); } -String -Midi_instrument::string () const +string +Midi_instrument::to_string () const { Byte program_byte = 0; bool found = false; - SCM proc = scm_primitive_eval (ly_symbol2scm ("midi-program")); - SCM program = gh_call1 (proc, ly_symbol2scm (audio_->str_.to_str0 ())); + + 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 = gh_scm2int(program); + program_byte = scm_to_int (program); else - warning (_f ("no such instrument: `%s'", audio_->str_.to_str0 ())); + 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); + 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 () +{ +} + +Midi_channel_item::Midi_channel_item () { channel_ = 0; } @@ -157,38 +98,38 @@ Midi_item::~Midi_item () { } -String -Midi_item::i2varint_string (int i) +string +int2midi_varint_string (int i) { - int buffer_i = i & 0x7f; - while ((i >>= 7) > 0) + int buffer = i & 0x7f; + while ((i >>= 7) > 0) { - buffer_i <<= 8; - buffer_i |= 0x80; - buffer_i += (i & 0x7f); + buffer <<= 8; + buffer |= 0x80; + buffer += (i & 0x7f); } - String str; - while (1) + string str; + while (1) { - str += to_string ((char)buffer_i); - if (buffer_i & 0x80) - buffer_i >>= 8; + str += ::to_string ((char)buffer); + if (buffer & 0x80) + buffer >>= 8; else break; } return str; } -Midi_key::Midi_key (Audio_key*a) +Midi_key::Midi_key (Audio_key *a) { audio_ = a; } -String -Midi_key::string () const +string +Midi_key::to_string () const { - String str = "ff5902"; + string str = "ff5902"; str += String_convert::int2hex (audio_->accidentals_, 2, '0'); if (audio_->major_) str += String_convert::int2hex (0, 2, '0'); @@ -197,72 +138,88 @@ Midi_key::string () const return String_convert::hex2bin (str); } -Midi_time_signature::Midi_time_signature (Audio_time_signature* a) +Midi_time_signature::Midi_time_signature (Audio_time_signature *a) { audio_ = a; clocks_per_1_ = 18; } -String -Midi_time_signature::string () const +string +Midi_time_signature::to_string () const { - int num = audio_->beats_; + 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"; + + + string str = "ff5804"; str += String_convert::int2hex (num, 2, '0'); - str += String_convert::int2hex (intlog2 (den) , 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_note* a) +Midi_note::Midi_note (Audio_note *a) { audio_ = a; dynamic_byte_ = 0x7f; } -Moment -Midi_note::length_mom () const + +int +Midi_note::get_fine_tuning () const { - Moment m = audio_->length_mom_; -#if 0 - //junkme? - if (m < Moment (Rational (1, 1000))) - { - warning (_ ("silly duration")); - m = 1; - } -#endif - return m; + Rational tune = (audio_->pitch_.tone_pitch () + + audio_->transposing_.tone_pitch ()) * Rational (2); + tune -= Rational (get_semitone_pitch ()); + + tune *= 100; + return (int) double (tune); } int -Midi_note::get_pitch () const +Midi_note::get_semitone_pitch () const { - int p = audio_->pitch_.semitone_pitch () + audio_->transposing_; - if (p == INT_MAX) - { - warning (_ ("silly pitch")); - p = 0; - } - return p; + return int (double ((audio_->pitch_.tone_pitch () + + audio_->transposing_.tone_pitch ()) * Rational (2))); } -String -Midi_note::string () const +string +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) + { + 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)); + } - String str = to_string ((char)status_byte); - str += to_string ((char) (get_pitch () + c0_pitch_i_)); + str += ::to_string ((char) status_byte); + str += ::to_string ((char) (get_semitone_pitch () + c0_pitch_)); + str += ::to_string ((char) dynamic_byte_); - str += to_string ((char)dynamic_byte_); return str; } -Midi_note_off::Midi_note_off (Midi_note* n) +Midi_note_off::Midi_note_off (Midi_note *n) : Midi_note (n->audio_) { on_ = n; @@ -271,161 +228,114 @@ Midi_note_off::Midi_note_off (Midi_note* n) // 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::string () const +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_); + 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_dynamic::Midi_dynamic (Audio_dynamic* a) +Midi_dynamic::Midi_dynamic (Audio_dynamic *a) { audio_ = a; } -String -Midi_dynamic::string () const +string +Midi_dynamic::to_string () const { Byte status_byte = (char) (0xB0 + channel_); - String str = to_string ((char)status_byte); + 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); + + 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); + str += ::to_string ((char)0x07); + str += ::to_string ((char)volume); return str; } -Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal* a) +Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal *a) { audio_ = a; } -String -Midi_piano_pedal::string () const +string +Midi_piano_pedal::to_string () const { Byte status_byte = (char) (0xB0 + channel_); - String str = to_string ((char)status_byte); + string str = ::to_string ((char)status_byte); if (audio_->type_string_ == "Sostenuto") - str += to_string ((char)0x42); + str += ::to_string ((char)0x42); else if (audio_->type_string_ == "Sustain") - str += to_string ((char)0x40); + str += ::to_string ((char)0x40); else if (audio_->type_string_ == "UnaCorda") - str += to_string ((char)0x43); + str += ::to_string ((char)0x43); int pedal = ((1 - audio_->dir_) / 2) * 0x7f; - str += to_string ((char)pedal); + str += ::to_string ((char)pedal); return str; } -Midi_tempo::Midi_tempo (Audio_tempo* a) +Midi_tempo::Midi_tempo (Audio_tempo *a) { audio_ = a; } -String -Midi_tempo::string () const +string +Midi_tempo::to_string () const { - 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'); + 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); } -Midi_text::Midi_text (Audio_text* a) +Midi_text::Midi_text (Audio_text *a) { audio_ = a; } -String -Midi_text::string () const +string +Midi_text::to_string () const { - String str = "ff" + String_convert::int2hex (audio_->type_, 2, '0'); + string str = "ff" + String_convert::int2hex (audio_->type_, 2, '0'); str = String_convert::hex2bin (str); - str += i2varint_string (audio_->text_string_.length ()); + str += int2midi_varint_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 -// 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); -} - -void -Midi_track::add (Moment delta_time_mom, Midi_item* midi) +char const * +Midi_item::name () const { - 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_track::data_string () const -{ - 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_->string (); - if (midi_debug_global_b) - str += "\n"; - } - return str; + return this->class_name (); }