/*
- midi-item.cc -- implement Midi items.
+ midi-item.cc -- implement MIDI items.
source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Jan Nieuwenhuizen <janneke@gnu.org>
- */
+ (c) 1997--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-#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<Audio_key*> (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))
+ 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))
+ 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))
+ 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))
+ 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))
+ 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))
+ 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 i->text_string_.length () ? new Midi_text (i) : 0;
+ else if (Audio_text *i = dynamic_cast<Audio_text *> (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 ("<duration: ") + to_string (seconds_) + ">";
-}
-
-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 ("<duration: ") + ::to_string (seconds_) + ">";
}
-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;
- /*
- UGH. don't use eval.
- */
- 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;
}
{
}
-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');
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::get_length () 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;
// 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<Midi_event> (e, 0));
-}
-
-String
-Midi_track::data_string () const
-{
- String str = Midi_chunk::data_string ();
- if (midi_debug_global_b)
- str += "\n";
- for (Cons<Midi_event> *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 ();
}
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