3 PROGRAM_NAME PROGRAM_VERSION - PROGRAM_DESCRIPTION
5 Copyright (C) 2003 Angel Ortega <angel@triptico.com>
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation; either version 2
10 of the License, or (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 http://www.triptico.com
29 GEN_MODE_PLAYING - Generator is generating sound after a call
30 to generator_play(). If sound is not looped, jumps
31 to GEN_MODE_STOPPED when the cursor reaches loop_end.
33 GEN_MODE_RELEASED - Generator is generating the sustain of a sound
34 after a call to generator_release(). When the sustain
35 ends, jumps to GEN_MODE_FREE.
37 GEN_MODE_STOPPED - Generator was playing a non-looped sound and the
38 cursor got beyond loop_end. No sound is being generated.
39 Waiting for a call to generator_release() to enter
40 GEN_MODE_FREE immediately.
42 GEN_MODE_FREE - Generator is free to be used.
46 #define GEN_MODE_PLAYING 3
47 #define GEN_MODE_RELEASED 2
48 #define GEN_MODE_STOPPED 1
49 #define GEN_MODE_FREE 0
53 int mode
; /* GEN_MODE_* */
55 int * lwave
; /* left channel wave */
56 int * rwave
; /* right channel wave */
57 int size
; /* size in samples */
58 double loop_start
; /* start of loop (-1, no loop) */
59 double loop_end
; /* end of loop */
60 double inc
; /* increment */
61 double lvol
; /* left volume */
62 double rvol
; /* right volume */
64 double cursor
; /* offset of next sample */
66 int sustain
; /* number of samples to play after release */
67 double dlvol
; /* delta of left volume (sustain) */
68 double drvol
; /* delta of right volume (sustain) */
70 int portamento
; /* number of samples of portamento */
71 double dest_inc
; /* final portamento inc */
72 double dinc
; /* delta of inc */
76 int generator_play(struct generator
* g
, int * lwave
, int * rwave
,
77 int size
, double inc
, int loop_start
, int loop_end
,
78 double lvol
, double rvol
, int sustain
);
80 int generator_release(struct generator
* g
);
82 void generator(struct generator
* g
, int * left
, int * right
);
84 int generator_portamento(struct generator
* g
, int portamento
,