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_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_PITCH_STRETCH,
  53
  54         SONG_EV_NOTE_ON,
  55         SONG_EV_NOTE_OFF,
  56
  57         SONG_EV_END
  58
  59 } song_ev_type;
  60
  61 struct song_ev_generic
  62 {
  63         song_ev_type type;      /* event type */
  64         double time;            /* event time (1: whole note) */
  65         int trk_id;             /* track id */
  66 };
  67
  68 struct song_ev_note
  69 {
  70         song_ev_type type;      /* SONG_EV_NOTE */
  71         double time;
  72         int trk_id;
  73         int note;               /* MIDI-like note */
  74         double len;             /* note length (1: whole note) */
  75         float vol;              /* note volume (1: full volume) */
  76 };
  77
  78 struct song_ev_tempo
  79 {
  80         song_ev_type type;      /* SONG_EV_TEMPO */
  81         double time;
  82         int trk_id;             /* always -1 */
  83         double tempo;           /* tempo in bpm */
  84 };
  85
  86 struct song_ev_meter
  87 {
  88         song_ev_type type;      /* SONG_EV_METER */
  89         double time;
  90         int trk_id;             /* always -1 */
  91         int num;                /* meter numerator */
  92         int den;                /* meter denominator */
  93 };
  94
  95 struct song_ev_ss_pitch_stretch
  96 {
  97         song_ev_type type;      /* SONG_EV_SS_PITCH_STRETCH */
  98         double time;
  99         int trk_id;
 100         int note;               /* MIDI-like note (to find the wave) */
 101         double len;             /* note length (1: whole note) */
 102         float vol;              /* note volume (1: full volume) */
 103 };
 104
 105 struct song_ev_ss_sustain
 106 {
 107         song_ev_type type;      /* SONG_EV_SS_SUSTAIN */
 108         double time;
 109         int trk_id;
 110         double sustain;         /* sustain time (in msecs) */
 111 };
 112
 113 struct song_ev_ss_channel
 114 {
 115         song_ev_type type;      /* SONG_EV_SS_CHANNEL */
 116         double time;
 117         int trk_id;
 118         int channel;            /* channel */
 119         float vol;              /* volume */
 120 };
 121
 122 struct song_ev_ss_wav
 123 {
 124         song_ev_type type;      /* SONG_EV_SS_WAV */
 125         double time;
 126         int trk_id;
 127         char * file;            /* path to .wav file */
 128         int base;               /* MIDI-like base note */
 129         int min;                /* MIDI-like minimum note */
 130         int max;                /* MIDI-like maximum note */
 131         double loop_start;      /* start of loop */
 132         double loop_end;        /* end of loop */
 133 };
 134
 135 struct song_ev_ss_pat
 136 {
 137         song_ev_type type;      /* SONG_EV_SS_PAT */
 138         double time;
 139         int trk_id;
 140         char * file;            /* path to .pat file */
 141 };
 142
 143 struct song_ev_ss_eff
 144 {
 145         song_ev_type type;      /* effect type */
 146         double time;
 147         int trk_id;
 148         int channel;            /* channel */
 149         double size;            /* size of effect */
 150         float gain;             /* gain */
 151         double depth;           /* depth */
 152         double freq;            /* freq */
 153         double phase;           /* phase */
 154         float initial;          /* initial vol */
 155         float final;            /* final vol */
 156 };
 157
 158 struct song_ev_midi_channel
 159 {
 160         song_ev_type type;      /* SONG_EV_MIDI_CHANNEL */
 161         double time;
 162         int trk_id;
 163         int channel;            /* midi channel (1-16) */
 164 };
 165
 166 struct song_ev_midi_program
 167 {
 168         song_ev_type type;      /* SONG_EV_MIDI_PROGRAM */
 169         double time;
 170         int trk_id;
 171         int program;            /* midi program (0-127) */
 172 };
 173
 174 union song_ev
 175 {
 176         struct song_ev_generic generic;
 177
 178         struct song_ev_tempo tempo;
 179         struct song_ev_meter meter;
 180
 181         struct song_ev_note note;
 182
 183         struct song_ev_ss_pitch_stretch ss_pitch_stretch;
 184         struct song_ev_ss_sustain ss_sustain;
 185         struct song_ev_ss_channel ss_channel;
 186
 187         struct song_ev_ss_wav ss_wav;
 188         struct song_ev_ss_pat ss_pat;
 189
 190         struct song_ev_ss_eff ss_eff;
 191
 192         struct song_ev_midi_channel midi_channel;
 193         struct song_ev_midi_program midi_program;
 194 };
 195
 196 extern union song_ev * song;
 197 extern int n_song_ev;
 198
 199 void song_clear(void);
 200 void add_song_ev(union song_ev * ev);
 201 void song_sort(void);