test/client_event_filter.c

   1 #include <alsa/asoundlib.h>
   2
   3 void dump_event_filter(snd_seq_client_info_t *client_info) {
   4         int i, b;
   5
   6         for (i = 0; i <= 255;) {
   7                 b = snd_seq_client_info_event_filter_check(client_info, i);
   8                 i++;
   9                 printf("%c%s%s", (b ? 'X' : '.'),
  10                         (i % 8 == 0 ? " " : ""),
  11                         (i % 32 == 0 ? "\n" : ""));
  12         }
  13         printf("\n");
  14 }
  15
  16 int main(void) {
  17         snd_seq_client_info_t *client_info;
  18
  19         snd_seq_client_info_alloca(&client_info);
  20
  21         printf("first client_info_event_filter                   :\n");
  22         dump_event_filter(client_info);
  23
  24         snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);
  25         printf("after snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);\n");
  26         dump_event_filter(client_info);
  27
  28         snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_PGMCHANGE);
  29         printf("after snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_PGMCHANGE);\n");
  30         dump_event_filter(client_info);
  31
  32         snd_seq_client_info_event_filter_del(client_info, SND_SEQ_EVENT_NOTEON);
  33         printf("after snd_seq_client_info_event_filter_del(client_info, SND_SEQ_EVENT_NOTEON);\n");
  34         dump_event_filter(client_info);
  35
  36         snd_seq_client_info_event_filter_clear(client_info);
  37         printf("after snd_seq_client_info_event_filter_clear(client_info);\n");
  38         dump_event_filter(client_info);
  39
  40         snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);
  41         printf("after snd_seq_client_info_event_filter_add(client_info, SND_SEQ_EVENT_NOTEON);\n");
  42         dump_event_filter(client_info);
  43
  44         return 0;
  45 }
  46