git.mutantstargoat.com Git - dos_sbtest/blob - src/main.c

   1 #include <stdio.h>\r
   2 #include <stdlib.h>\r
   3 #include <string.h>\r
   4 #include <dos.h>\r
   5 #include <conio.h>\r
   6 #include "audio.h"\r
   7 \r
   8 static int au_callback(void *buffer, int size, void *cls);\r
   9 \r
  10 static signed char *snd_click;\r
  11 static int snd_click_size;\r
  12 \r
  13 static int dbg_cbcalled;\r
  14 \r
  15 int main(int argc, char **argv)\r
  16 {\r
  17         FILE *fp;\r
  18 \r
  19         if(!(fp = fopen("click.pcm", "rb"))) {\r
  20                 fprintf(stderr, "failed to open click.pcm\n");\r
  21                 return 1;\r
  22         }\r
  23         fseek(fp, 0, SEEK_END);\r
  24         snd_click_size = ftell(fp);\r
  25         rewind(fp);\r
  26         if(!(snd_click = malloc(snd_click_size))) {\r
  27                 fprintf(stderr, "failed to allocate sound sample\n");\r
  28                 return 1;\r
  29         }\r
  30         fread(snd_click, 1, snd_click_size, fp);\r
  31         fclose(fp);\r
  32 \r
  33         audio_init();\r
  34         audio_set_callback(au_callback, 0);\r
  35 \r
  36         for(;;) {\r
  37                 if(kbhit()) {\r
  38                         int c = getch();\r
  39                         switch(c) {\r
  40                         case 27:\r
  41                                 goto end;\r
  42                         case ' ':\r
  43                                 if(audio_isplaying()) {\r
  44                                         audio_stop();\r
  45                                 } else {\r
  46                                         audio_play(22050, 8, 1);\r
  47                                 }\r
  48                                 break;\r
  49                         default:\r
  50                                 break;\r
  51                         }\r
  52                 }\r
  53 \r
  54                 _disable();\r
  55                 if(dbg_cbcalled) {\r
  56                         dbg_cbcalled = 0;\r
  57                         _enable();\r
  58                         printf("callback called!\n");\r
  59                 } else {\r
  60                         _enable();\r
  61                 }\r
  62         }\r
  63 \r
  64 end:\r
  65         audio_stop();\r
  66         return 0;\r
  67 }\r
  68 \r
  69 /* snd_click_size is < 65536 so we can just throw it all at once in there */\r
  70 static int au_callback(void *buffer, int size, void *cls)\r
  71 {\r
  72         dbg_cbcalled = 1;\r
  73         memcpy(buffer, snd_click, snd_click_size);\r
  74         return snd_click_size;\r
  75 }\r