source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Jan Nieuwenhuizen <janneke@gnu.org>
- */
+ (c) 1997--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
+
+#include "midi-item.hh"
#include "warn.hh"
#include "main.hh"
#include "misc.hh"
-#include "string.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 "program-option.hh"
#include "killing-cons.tcc"
-Midi_item*
-Midi_item::get_midi (Audio_item* a)
+#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<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))
+ else if (Audio_text *i = dynamic_cast<Audio_text *> (a))
//return i->text_string_.length () ? new Midi_text (i) : 0;
return new Midi_text (i);
else
footer_string_ = footer_string;
header_string_ = header_string;
}
-
+
String
Midi_chunk::data_string () const
{
{
String str = header_string_;
String dat = data_string ();
- String length_string = String_convert::int2hex (dat.length ()
- + footer_string_.length (), 8, '0');
+ 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;
return String ("<duration: ") + ::to_string (seconds_) + ">";
}
-Midi_event::Midi_event (Moment delta_mom, Midi_item* midi)
+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::to_string () const
{
- Rational rat_dt = (delta_mom_.main_part_ * Rational (384) +
- delta_mom_.grace_part_ * Rational (100))*Rational (4);
+ 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);
return delta_string + midi_string;
}
-
Midi_header::Midi_header (int format_i, int tracks_i, int clocks_per_4_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);
set ("MThd", str, "");
}
-Midi_instrument::Midi_instrument (Audio_instrument* a)
+Midi_instrument::Midi_instrument (Audio_instrument *a)
{
audio_ = a;
audio_->str_.to_lower ();
/*
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_.to_str0 ()));
found = (program != SCM_BOOL_F);
if (found)
- program_byte = gh_scm2int(program);
+ program_byte = scm_to_int (program);
else
- warning (_f ("no such MIDI instrument: `%s'", audio_->str_.to_str0 ()));
+ warning (_f ("no such MIDI instrument: `%s'", audio_->str_.to_str0 ()));
- String str = ::to_string ((char) (0xc0 + channel_)); //YIKES! FIXME: Should be track. -rz
+ String str = ::to_string ((char) (0xc0 + channel_)); //YIKES! FIXME : Should be track. -rz
str += ::to_string ((char)program_byte);
return str;
}
Midi_item::i2varint_string (int i)
{
int buffer_i = i & 0x7f;
- while ((i >>= 7) > 0)
+ while ((i >>= 7) > 0)
{
buffer_i <<= 8;
buffer_i |= 0x80;
}
String str;
- while (1)
+ while (1)
{
str += ::to_string ((char)buffer_i);
if (buffer_i & 0x80)
return str;
}
-Midi_key::Midi_key (Audio_key*a)
+Midi_key::Midi_key (Audio_key *a)
{
audio_ = a;
}
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 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;
Midi_note::get_length () const
{
Moment m = audio_->length_mom_;
-#if 0
- //junkme?
- if (m < Moment (Rational (1, 1000)))
- {
- warning (_ ("silly duration"));
- m = 1;
- }
-#endif
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
{
{
warning (_ ("silly pitch"));
p = 0;
- }
+ }
return p;
}
Midi_note::to_string () const
{
Byte status_byte = (char) (0x90 + channel_);
+ String str = "";
+ int finetune;
- String str = ::to_string ((char)status_byte);
- str += ::to_string ((char) (get_pitch () + c0_pitch_i_));
+ // 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_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 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 str;
}
-Midi_dynamic::Midi_dynamic (Audio_dynamic* a)
+Midi_dynamic::Midi_dynamic (Audio_dynamic *a)
{
audio_ = a;
}
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)
return str;
}
-Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal* a)
+Midi_piano_pedal::Midi_piano_pedal (Audio_piano_pedal *a)
{
audio_ = a;
}
return str;
}
-Midi_tempo::Midi_tempo (Audio_tempo* a)
+Midi_tempo::Midi_tempo (Audio_tempo *a)
{
audio_ = a;
}
return String_convert::hex2bin (str);
}
-Midi_text::Midi_text (Audio_text* a)
+Midi_text::Midi_text (Audio_text *a)
{
audio_ = a;
}
// 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
+
+ // 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 = ""
+
+ char const *data_str0 = ""
// "00" "ff58" "0404" "0218" "08"
// "00" "ff51" "0307" "a120"
// why a key at all, in midi?
// "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";
+ 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)
+void
+Midi_track::add (Moment delta_time_mom, Midi_item *midi)
{
assert (delta_time_mom >= Moment (0));
- Midi_event * e = new Midi_event (delta_time_mom, midi);
+ Midi_event *e = new Midi_event (delta_time_mom, midi);
event_p_list_.append (new Killing_cons<Midi_event> (e, 0));
}
Midi_track::data_string () const
{
String str = Midi_chunk::data_string ();
- if (midi_debug_global_b)
+ if (do_midi_debugging_global)
str += "\n";
- for (Cons<Midi_event> *i=event_p_list_.head_; i; i = i->next_)
+ for (Cons<Midi_event> *i = event_p_list_.head_; i; i = i->next_)
{
str += i->car_->to_string ();
- if (midi_debug_global_b)
- str += "\n";
+ if (do_midi_debugging_global)
+ str += "\n";
}
return str;
}
+
+
+char const *
+Midi_item::name () const
+{
+ return classname (this);
+}
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