tests/soundtest.c

   1 #include <libchimara/glk.h>
   2 #include <stdio.h>
   3 #include <unistd.h>
   4
   5 void
   6 glk_main(void)
   7 {
   8         if(!glk_gestalt(gestalt_Sound, 0)) {
   9                 fprintf(stderr, "Sound not supported.\n");
  10                 return;
  11         }
  12         if(!glk_gestalt(gestalt_SoundVolume, 0)) {
  13                 fprintf(stderr, "Sound volume not supported.\n");
  14                 return;
  15         }
  16
  17         schanid_t sc = glk_schannel_create(0);
  18         if(!sc) {
  19                 fprintf(stderr, "Could not create sound channel.\n");
  20                 return;
  21         }
  22
  23         if(!glk_schannel_play(sc, 0)) { /* resource number doesn't matter right now */
  24                 fprintf(stderr, "Could not start sound channel.\n");
  25                 return;
  26         }
  27
  28         glk_schannel_set_volume(sc, 0x10000);
  29         sleep(1);
  30         glk_schannel_set_volume(sc, 0x08000);
  31         sleep(1);
  32         glk_schannel_set_volume(sc, 0x04000);
  33         sleep(1);
  34         glk_schannel_set_volume(sc, 0x00000);
  35         glk_schannel_set_volume(sc, 0xA0000); /* max supported volume */
  36         glk_schannel_set_volume(sc, 0xB0000); /* should be coerced */
  37         glk_schannel_set_volume(sc, 0x10000);
  38
  39         glk_schannel_stop(sc);
  40         glk_schannel_destroy(sc);
  41 }