song.h

   1 /*
   2
   3     Ann Hell Ex Machina - Music Software
   4     Copyright (C) 2003/2005 Angel Ortega <angel@triptico.com>
   5
   6     This program is free software; you can redistribute it and/or
   7     modify it under the terms of the GNU General Public License
   8     as published by the Free Software Foundation; either version 2
   9     of the License, or (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20     http://www.triptico.com
  21
  22 */
  23
  24
  25 typedef enum
  26 {
  27         SONG_EV_TEMPO,
  28         SONG_EV_METER,
  29         SONG_EV_MEASURE,
  30
  31         SONG_EV_SS_SUSTAIN,
  32         SONG_EV_SS_SET_CHANNEL,
  33
  34         SONG_EV_SS_WAV,
  35         SONG_EV_SS_PAT,
  36
  37         SONG_EV_SS_EFF_DELAY,
  38         SONG_EV_SS_EFF_ECHO,
  39         SONG_EV_SS_EFF_COMB,
  40         SONG_EV_SS_EFF_ALLPASS,
  41         SONG_EV_SS_EFF_FLANGER,
  42         SONG_EV_SS_EFF_WOBBLE,
  43         SONG_EV_SS_EFF_SQWOBBLE,
  44         SONG_EV_SS_EFF_FADER,
  45         SONG_EV_SS_EFF_REVERB,
  46         SONG_EV_SS_EFF_OFF,
  47
  48         SONG_EV_MIDI_CHANNEL,
  49         SONG_EV_MIDI_PROGRAM,
  50
  51         SONG_EV_NOTE,
  52         SONG_EV_SS_NOTE_ON_BY_TIME,
  53
  54         SONG_EV_SS_NOTE_ON,
  55
  56         SONG_EV_MIDI_NOTE_ON,
  57
  58         SONG_EV_NOTE_OFF,
  59
  60         SONG_EV_END
  61
  62 } song_ev_type;
  63
  64 struct song_ev_generic
  65 {
  66         song_ev_type type;      /* event type */
  67         double time;            /* event time (1: whole note) */
  68         int trk_id;             /* track id */
  69 };
  70
  71 struct song_ev_note
  72 {
  73         song_ev_type type;      /* SONG_EV_NOTE */
  74         double time;
  75         int trk_id;
  76         int note;               /* MIDI-like note */
  77         double len;             /* note length (1: whole note) */
  78         float vol;              /* note volume (1: full volume) */
  79 };
  80
  81 struct song_ev_tempo
  82 {
  83         song_ev_type type;      /* SONG_EV_TEMPO */
  84         double time;
  85         int trk_id;             /* always -1 */
  86         double tempo;           /* tempo in bpm */
  87 };
  88
  89 struct song_ev_meter
  90 {
  91         song_ev_type type;      /* SONG_EV_METER */
  92         double time;
  93         int trk_id;             /* always -1 */
  94         int num;                /* meter numerator */
  95         int den;                /* meter denominator */
  96 };
  97
  98 struct song_ev_ss_note_by_time
  99 {
 100         song_ev_type type;      /* SONG_EV_SS_NOTE_BY_TIME */
 101         double time;
 102         int trk_id;
 103         int note;               /* MIDI-like note (to find the wave) */
 104         double len;             /* note length (1: whole note) */
 105         float vol;              /* note volume (1: full volume) */
 106 };
 107
 108 struct song_ev_ss_sustain
 109 {
 110         song_ev_type type;      /* SONG_EV_SS_SUSTAIN */
 111         double time;
 112         int trk_id;
 113         double sustain;         /* sustain time (in msecs) */
 114 };
 115
 116 struct song_ev_ss_set_channel
 117 {
 118         song_ev_type type;      /* SONG_EV_SS_SET_CHANNEL */
 119         double time;
 120         int trk_id;
 121         int channel;            /* channel */
 122         float vol;              /* volume */
 123 };
 124
 125 struct song_ev_ss_wav
 126 {
 127         song_ev_type type;      /* SONG_EV_SS_WAV */
 128         double time;
 129         int trk_id;
 130         char * file;            /* path to .wav file */
 131         int base;               /* MIDI-like base note */
 132         int min;                /* MIDI-like minimum note */
 133         int max;                /* MIDI-like maximum note */
 134         double loop_start;      /* start of loop */
 135         double loop_end;        /* end of loop */
 136 };
 137
 138 struct song_ev_ss_pat
 139 {
 140         song_ev_type type;      /* SONG_EV_SS_PAT */
 141         double time;
 142         int trk_id;
 143         char * file;            /* path to .pat file */
 144 };
 145
 146 struct song_ev_ss_eff
 147 {
 148         song_ev_type type;      /* effect type */
 149         double time;
 150         int trk_id;
 151         int channel;            /* channel */
 152         double size;            /* size of effect */
 153         float gain;             /* gain */
 154         double depth;           /* depth */
 155         double freq;            /* freq */
 156         double phase;           /* phase */
 157         float initial;          /* initial vol */
 158         float final;            /* final vol */
 159 };
 160
 161 struct song_ev_midi_channel
 162 {
 163         song_ev_type type;      /* SONG_EV_MIDI_CHANNEL */
 164         double time;
 165         int trk_id;
 166         int channel;            /* midi channel (1-16) */
 167 };
 168
 169 struct song_ev_midi_program
 170 {
 171         song_ev_type type;      /* SONG_EV_MIDI_PROGRAM */
 172         double time;
 173         int trk_id;
 174         int program;            /* midi program (0-127) */
 175 };
 176
 177 union song_ev
 178 {
 179         struct song_ev_generic generic;
 180
 181         struct song_ev_tempo tempo;
 182         struct song_ev_meter meter;
 183
 184         struct song_ev_note note;
 185
 186         struct song_ev_ss_note_by_time ss_note_by_time;
 187         struct song_ev_ss_sustain ss_sustain;
 188         struct song_ev_ss_set_channel ss_set_channel;
 189
 190         struct song_ev_ss_wav ss_wav;
 191         struct song_ev_ss_pat ss_pat;
 192
 193         struct song_ev_ss_eff ss_eff;
 194
 195         struct song_ev_midi_channel midi_channel;
 196         struct song_ev_midi_program midi_program;
 197 };
 198
 199 extern union song_ev * song;
 200 extern int n_song_ev;
 201
 202 void song_clear(void);
 203 void add_song_ev(union song_ev * ev);
 204 void song_sort(void);