sound.c

   1 /*
   2    Cantaveria - action adventure platform game
   3    Copyright (C) 2009  Evan Rinehart
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public License
   7    as published by the Free Software Foundation; either version 2
   8    of the License, or (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to
  17
  18    The Free Software Foundation, Inc.
  19    51 Franklin Street, Fifth Floor
  20    Boston, MA  02110-1301, USA
  21 */
  22
  23 #include <stdlib.h>
  24
  25 #include "sound.h"
  26 #include "util.h"
  27
  28 int sample_rate;
  29
  30 float* sounds[64];
  31
  32 void process_audio(float lout[], float rout[], int len){
  33   for(int i=0; i<len; i++){
  34     lout[i] = 0;
  35     rout[i] = 0;
  36   }
  37 }
  38
  39
  40
  41
  42
  43
  44 int sound_table[64][8] = {
  45 {10000,0,0,0,0,0,0,0},
  46 {5000,0,0,0,0,0,0,0},
  47 {0,0,0,0,0,0,0,0},
  48 {0,0,0,0,0,0,0,0},
  49 {0,0,0,0,0,0,0,0},
  50 {0,0,0,0,0,0,0,0},
  51 {0,0,0,0,0,0,0,0},
  52 };
  53
  54
  55
  56
  57 short builder1(int N, int i){
  58   return 0;
  59 }
  60
  61 short builder2(int N, int i){
  62   return 0;
  63 }
  64
  65 short (*(sound_builders[5]))(int N, int i) = {
  66   builder1,
  67   builder2
  68 };
  69
  70 void init_sound(int rate){
  71   sample_rate = rate;
  72
  73   /* generate sounds */
  74   int S = rate/22050;
  75
  76   for(int N=0; N<2; N++){
  77     int L = sound_table[N][0];
  78     sounds[N] = xmalloc(L*S*sizeof(float));
  79     for(int i=0; i<L; i++){
  80       sounds[N][i] = sound_builders[N](N, i);
  81     }
  82   }
  83 }