ss_gen.h

   1 /*
   2
   3     PROGRAM_NAME PROGRAM_VERSION - PROGRAM_DESCRIPTION
   4
   5     Copyright (C) 2003 Angel Ortega <angel@triptico.com>
   6
   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.
  11
  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.
  16
  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.
  20
  21     http://www.triptico.com
  22
  23 */
  24
  25 struct generator
  26 {
  27         int in_use;             /* 2 - playing, 1 - released, 0 - free */
  28
  29         int * lwave;            /* left channel wave */
  30         int * rwave;            /* right channel wave */
  31         int size;               /* size in samples */
  32         double loop_start;      /* start of loop (-1, no loop) */
  33         double loop_end;        /* end of loop */
  34         double inc;             /* increment */
  35         double lvol;            /* left volume */
  36         double rvol;            /* right volume */
  37
  38         double cursor;          /* offset of next sample */
  39         int sustain;            /* number of samples to play after release */
  40         double dlvol;           /* delta of left volume (sustain) */
  41         double drvol;           /* delta of right volume (sustain) */
  42 };
  43
  44
  45 int generator_play(struct generator * g, int * lwave, int * rwave,
  46         int size, double inc, int loop_start, int loop_end,
  47         double lvol, double rvol, int sustain);
  48
  49 int generator_release(struct generator * g);
  50
  51 void generator(struct generator * g, int * left, int * right);