lily/include/midi-item.hh

   1 //
   2 //  midiitem.hh -- part of LilyPond
   3 //
   4 //  copyright 1997 Jan Nieuwenhuizen <jan@digicash.com>
   5
   6 #ifndef MIDI_ITEM_HH
   7 #define MIDI_ITEM_HH
   8 #include "string.hh"
   9 #include "proto.hh"
  10
  11 struct Midi_item {
  12     /* *************** */
  13     static String i2varint_str( int i );
  14     virtual void output_midi( Midi_stream& midi_stream_r ) const;
  15     virtual String str() const = 0;
  16 };
  17
  18 struct Midi_key : public Midi_item {
  19         Midi_key( int accidentals_i, int minor_i );
  20
  21         virtual String str() const;
  22
  23         int accidentals_i_;
  24         int minor_i_;
  25 };
  26
  27 struct Midi_note : public Midi_item {
  28     /* *************** */
  29     int const c0_pitch_i_c_ = 60;
  30     Byte dynamic_byte_;
  31
  32     /**
  33       Generate a note-event on a channel pitch.
  34
  35       @param #melreq_l# is the pitch.
  36      */
  37     Midi_note( Melodic_req* melreq_l, int channel_i, bool on_b );
  38
  39     virtual String str() const;
  40
  41     int channel_i_;
  42     int on_b_;
  43     int pitch_i_;
  44 };
  45
  46 struct Midi_duration : public Midi_item {
  47     /* *************** */
  48     Midi_duration( Real seconds_f );
  49
  50     virtual String str() const;
  51
  52     Real seconds_f_;
  53 };
  54
  55 struct Midi_chunk : Midi_item {
  56     /* *************** */
  57     Midi_chunk();
  58
  59     void add( String str );
  60     void set( String header_str, String data_str, String footer_str );
  61     virtual String str() const;
  62
  63 private:
  64     String data_str_;
  65     String footer_str_;
  66     String header_str_;
  67 };
  68
  69 struct Midi_header : Midi_chunk {
  70     /* *************** */
  71     Midi_header( int format_i, int tracks_i, int clocks_per_4_i );
  72 };
  73
  74 struct Midi_text : Midi_item {
  75     /* *************** */
  76         enum Type {
  77                 TEXT = 1, COPYRIGHT, TRACK_NAME, INSTRUMENT_NAME, LYRIC,
  78                 MARKER, CUE_POINT
  79         };
  80         Midi_text( Midi_text::Type type, String text_str );
  81
  82         virtual String str() const;
  83
  84         Type type_;
  85         String text_str_;
  86 };
  87
  88 struct Midi_tempo : Midi_item {
  89     /* *************** */
  90     Midi_tempo( int per_minute_4_i );
  91
  92     virtual String str() const;
  93
  94     int per_minute_4_i_;
  95 };
  96
  97 struct Midi_track : Midi_chunk {
  98     /* *************** */
  99     int number_i_;
 100     Midi_track( int number_i );
 101
 102     void add( int delta_time_i, String event );
 103 //      void add( Moment delta_time_moment, Midi_item& mitem_r );
 104     void add( Moment delta_time_moment, Midi_item* mitem_l );
 105 };
 106
 107 #endif // MIDI_ITEM_HH //
 108