void os_start_sample (int number, int volume, int repeats, zword eos)
{
/* INCOMPLETE */
sigset_t sigchld_mask;
struct sigaction sa;
os_prepare_sample(number);
if (! sound_buffer)
return;
os_stop_sample(0);
sigemptyset(&sigchld_mask);
sigaddset(&sigchld_mask, SIGCHLD);
sigprocmask(SIG_BLOCK, &sigchld_mask, NULL);
child_pid = fork();
if (child_pid < 0) { /* error in fork */
perror("fork");
return;
}
else if (child_pid == 0) { /* child */
sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
play_sound(volume, repeats);
}
else { /* parent */
sa.sa_handler = sigchld_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sigaction(SIGCHLD, &sa, NULL);
sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
}
}/* os_start_sample */
/*
* z_sound_effect, load / play / stop / discard a sound effect.
*
* zargs[0] = number of bleep (1 or 2) or sample
* zargs[1] = operation to perform (samples only)
* zargs[2] = repeats and volume (play sample only)
* zargs[3] = end-of-sound routine (play sample only, optional)
*
* Note: Volumes range from 1 to 8, volume 255 is the default volume.
* Repeats are stored in the high byte, 255 is infinite loop.
*
*/
void z_sound_effect (void)
{
zword number = zargs[0];
zword effect = zargs[1];
zword volume = zargs[2];
/* By default play sound 1 at volume 8 */
if (zargc < 1)
number = 1;
if (zargc < 2)
effect = EFFECT_PLAY;
if (zargc < 3)
volume = 8;
if (number >= 3 || number == 0) {
locked = TRUE;
if (story_id == LURKING_HORROR && (number == 9 || number == 16)) {
if (effect == EFFECT_PLAY) {
next_sample = number;
next_volume = volume;
locked = FALSE;
if (!playing)
start_next_sample ();
} else locked = FALSE;
return;
}
playing = FALSE;
switch (effect) {
case EFFECT_PREPARE:
os_prepare_sample (number);
break;
case EFFECT_PLAY:
start_sample (number, lo (volume), hi (volume), (zargc == 4) ? zargs[3] : 0);
break;
case EFFECT_STOP:
os_stop_sample ();
break;
case EFFECT_FINISH_WITH:
os_finish_with_sample ();
break;
}
locked = FALSE;
} else os_beep (number);
}/* z_sound_effect */
void os_reset_screen (void)
{
os_stop_sample(0);
os_set_text_style(0);
os_display_string((zchar *) "[Hit any key to exit.]");
os_read_key(0, FALSE);
}/* os_reset_screen */
void os_reset_screen (void)
{
os_stop_sample(0);
os_set_text_style(0);
print_string("[Hit any key to exit.]\n");
os_read_key(0, FALSE);
scrollok(stdscr, TRUE); scroll(stdscr);
refresh(); endwin();
}/* os_reset_screen */
