X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmidi-item.cc;h=ba29ba0ba59264a2d51682489a34f3e1300eb7db;hb=a6a51abfd0195a3cf7d6ea095cf69808852f21ce;hp=4a633cc79df4ed56836b20021974158cbb805138;hpb=9f1a0d54bb060ebcac66780f69e15e281a4c93e8;p=lilypond.git diff --git a/lily/midi-item.cc b/lily/midi-item.cc index 4a633cc79d..ba29ba0ba5 100644 --- a/lily/midi-item.cc +++ b/lily/midi-item.cc @@ -1,26 +1,38 @@ /* - 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 - (c) 1997--2007 Jan Nieuwenhuizen + 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 . */ #include "midi-item.hh" +#include "audio-column.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" +#include "lily-imports.hh" -#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) +#define PITCH_WHEEL_SEMITONE 0X1000 Midi_item * Midi_item::get_midi (Audio_item *a) @@ -31,8 +43,6 @@ Midi_item::get_midi (Audio_item *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)) @@ -41,42 +51,14 @@ Midi_item::get_midi (Audio_item *a) return new Midi_time_signature (i); else if (Audio_text *i = dynamic_cast (a)) return new Midi_text (i); + else if (Audio_control_change *i = dynamic_cast (a)) + return new Midi_control_change (i); else assert (0); 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::to_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; @@ -88,40 +70,10 @@ Midi_duration::to_string () const return string (""; } -Midi_event::Midi_event (int delta_ticks, Midi_item *midi) -{ - delta_ticks_ = delta_ticks; - midi_ = midi; -} - -string -Midi_event::to_string () const -{ - string delta_string = Midi_item::i2varint_string (delta_ticks_); - string midi_string = midi_->to_string (); - assert (midi_string.length ()); - return delta_string + midi_string; -} - -Midi_header::Midi_header (int format, int tracks, int clocks_per_4) -{ - string str; - - string format_string = String_convert::int2hex (format, 4, '0'); - str += String_convert::hex2bin (format_string); - - string tracks_string = String_convert::int2hex (tracks, 4, '0'); - str += String_convert::hex2bin (tracks_string); - - string tempo_string = String_convert::int2hex (clocks_per_4, 4, '0'); - str += String_convert::hex2bin (tempo_string); - - set ("MThd", str, ""); -} - Midi_instrument::Midi_instrument (Audio_instrument *a) + : Midi_channel_item (a), + audio_ (a) { - audio_ = a; audio_->str_ = String_convert::to_lower (audio_->str_); } @@ -131,11 +83,10 @@ Midi_instrument::to_string () const 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); + SCM program = Lily::midi_program (ly_symbol2scm (audio_->str_.c_str ())); + found = (scm_is_true (program)); if (found) - program_byte = scm_to_int (program); + program_byte = (Byte) scm_to_int (program); else warning (_f ("no such MIDI instrument: `%s'", audio_->str_.c_str ())); @@ -148,17 +99,31 @@ Midi_item::Midi_item () { } -Midi_channel_item::Midi_channel_item () +Midi_channel_item::Midi_channel_item (Audio_item *ai) + : channel_ (ai->channel_) +{ +} + +Midi_control_change::Midi_control_change (Audio_control_change *ai) + : Midi_channel_item (ai), + audio_ (ai) { - channel_ = 0; } Midi_item::~Midi_item () { } +Midi_channel_item::~Midi_channel_item () +{ +} + +Midi_control_change::~Midi_control_change () +{ +} + string -Midi_item::i2varint_string (int i) +int2midi_varint_string (int i) { int buffer = i & 0x7f; while ((i >>= 7) > 0) @@ -173,16 +138,16 @@ Midi_item::i2varint_string (int i) { str += ::to_string ((char)buffer); if (buffer & 0x80) - buffer >>= 8; + buffer >>= 8; else - break; + break; } return str; } Midi_key::Midi_key (Audio_key *a) + : audio_ (a) { - audio_ = a; } string @@ -198,9 +163,9 @@ Midi_key::to_string () const } Midi_time_signature::Midi_time_signature (Audio_time_signature *a) + : audio_ (a), + clocks_per_1_ (18) { - audio_ = a; - clocks_per_1_ = 18; } string @@ -209,14 +174,12 @@ Midi_time_signature::to_string () const int num = abs (audio_->beats_); if (num > 255) { - warning ("Time signature with more than 255 beats. Truncating"); + 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'); @@ -226,28 +189,32 @@ Midi_time_signature::to_string () const } Midi_note::Midi_note (Audio_note *a) + : Midi_channel_item (a), + audio_ (a), + dynamic_byte_ (min (max (Byte ((a->dynamic_ + ? a->dynamic_->get_volume (a->audio_column_->when ()) * 0x7f : 0x5a) + + a->extra_velocity_), + Byte (0)), Byte (0x7f))) { - audio_ = a; - dynamic_byte_ = 0x7f; } - int Midi_note::get_fine_tuning () const { Rational tune = (audio_->pitch_.tone_pitch () - + audio_->transposing_.tone_pitch ()) * Rational (2); + + audio_->transposing_.tone_pitch ()) * Rational (2); tune -= Rational (get_semitone_pitch ()); - tune *= 100; + tune *= PITCH_WHEEL_SEMITONE; return (int) double (tune); } int Midi_note::get_semitone_pitch () const { - return int (double ((audio_->pitch_.tone_pitch () - + audio_->transposing_.tone_pitch ()) * Rational (2))); + double tune = double ((audio_->pitch_.tone_pitch () + + audio_->transposing_.tone_pitch ()) * Rational (2)); + return int (rint (tune)); } string @@ -260,13 +227,7 @@ Midi_note::to_string () const // 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); + finetune = PITCH_WHEEL_CENTER + get_fine_tuning (); str += ::to_string ((char) (0xE0 + channel_)); str += ::to_string ((char) (finetune & 0x7F)); @@ -276,7 +237,7 @@ Midi_note::to_string () const 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; } @@ -287,17 +248,14 @@ Midi_note_off::Midi_note_off (Midi_note *n) 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; + // use note_on with velocity=0 instead of note_off + aftertouch_byte_ = 0; } string Midi_note_off::to_string () const { - Byte status_byte = (char) (0x80 + channel_); + Byte status_byte = (char) (0x90 + channel_); string str = ::to_string ((char)status_byte); str += ::to_string ((char) (get_semitone_pitch () + Midi_note::c0_pitch_)); @@ -308,45 +266,17 @@ Midi_note_off::to_string () const // 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 & 0x7F)); str += ::to_string ((char) (PITCH_WHEEL_CENTER >> 7)); } return str; } -Midi_dynamic::Midi_dynamic (Audio_dynamic *a) -{ - audio_ = a; -} - -string -Midi_dynamic::to_string () const -{ - 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) + : Midi_channel_item (a), + audio_ (a) { - audio_ = a; } string @@ -368,8 +298,8 @@ Midi_piano_pedal::to_string () const } Midi_tempo::Midi_tempo (Audio_tempo *a) + : audio_ (a) { - audio_ = a; } string @@ -382,8 +312,8 @@ Midi_tempo::to_string () const } Midi_text::Midi_text (Audio_text *a) + : audio_ (a) { - audio_ = a; } string @@ -391,79 +321,23 @@ 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 += 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 (int delta_ticks, Midi_item *midi) -{ - assert (delta_ticks >= 0); - - Midi_event *e = new Midi_event (delta_ticks, midi); - events_.push_back (e); -} - string -Midi_track::data_string () const +Midi_control_change::to_string () const { - string str = Midi_chunk::data_string (); - - for (vector::const_iterator i (events_.begin()); - i != events_.end(); i ++) - { - str += (*i)->to_string (); - } + Byte status_byte = (char) (0xB0 + channel_); + string str = ::to_string ((char)status_byte); + str += ::to_string ((char) (audio_->control_)); + str += ::to_string ((char) (audio_->value_)); return str; } - char const * Midi_item::name () const { - return this->class_name (); -} - -Midi_track::~Midi_track () -{ + return class_name (); }