-//
-// midiitem.cc
-//
-// source file of the LilyPond music typesetter
-//
-// (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
-
-#include <limits.h>
-#include "proto.hh"
-#include "plist.hh"
-#include "pcol.hh"
-#include "debug.hh"
+/*
+ midi-item.cc -- implement Midi items.
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--2002 Jan Nieuwenhuizen <janneke@gnu.org>
+ */
+
+#include "warn.hh"
+#include "main.hh"
#include "misc.hh"
#include "string.hh"
#include "string-convert.hh"
-#include "request.hh"
-#include "musicalrequest.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"
+
+Midi_item*
+Midi_item::get_midi (Audio_item* 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))
+ return i->str_.length () ? new Midi_instrument (i) : 0;
+ 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))
+ return new Midi_dynamic (i);
+ 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))
+ return new Midi_tempo (i);
+ 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;
+ 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::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::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 ("<duration: ") + to_string (seconds_) + ">";
}
-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::string () const
{
- return String( "<duration: " ) + String( seconds_f_ ) + ">";
+ 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 )
+
+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::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;
+ SCM proc = scm_primitive_eval (ly_symbol2scm ("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 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::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::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;
+ audio_ = a;
+ dynamic_byte_ = 0x7f;
+}
- // poor man-s staff dynamics:
- dynamic_byte_ = (melreq_l)? 0x64 - 0x10 * channel_i_:0;
- on_b_ = on_bo;
+Moment
+Midi_note::length_mom () 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_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;
- }
- return String( "" );
+Midi_note::string () const
+{
+ Byte status_byte = (char) (0x90 + channel_);
+
+ String 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::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_);
+ return str;
+}
+
+Midi_dynamic::Midi_dynamic (Audio_dynamic* a)
+{
+ audio_ = a;
+}
+
+String
+Midi_dynamic::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)
+{
+ audio_ = a;
+}
+
+String
+Midi_piano_pedal::string () const
+{
+ 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_tempo::Midi_tempo( int per_minute_4_i )
+Midi_tempo::Midi_tempo (Audio_tempo* a)
{
- per_minute_4_i_ = per_minute_4_i;
+ audio_ = a;
}
String
-Midi_tempo::str() const
+Midi_tempo::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 );
+ 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_text::Midi_text( Midi_text::Type type, String text_str )
+Midi_text::Midi_text (Audio_text* a)
{
- type_ = type;
- text_str_ = text_str;
+ audio_ = a;
}
String
-Midi_text::str() const
+Midi_text::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;
+ 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( int number_i )
+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
+ // 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
// mi = 0: major key
// mi = 1: minor key
- number_i_ = number_i;
+ number_ = 0;
- char const* data_ch_c_l = "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_l );
+ String data_string;
+ // only for format 0 (currently using format 1)?
+ data_string += String_convert::hex2bin (data_str0);
- char const* footer_ch_c_l = "00" "ff2f" "00";
- String footer_str = String_convert::hex2bin_str( footer_ch_c_l );
+ 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)
{
- 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<Midi_event> (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<Midi_event> *i=event_p_list_.head_; i; i = i->next_)
+ {
+ str += i->car_->string ();
+ if (midi_debug_global_b)
+ str += "\n";
+ }
+ return str;
}
-
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