/* Try to determine whether sound is available. This is only for GUI purposes. */
int32_t setup_sound (void)
{
sound_fd = open ("/dev/dsp", O_WRONLY);
sound_available = 0;
if (sound_fd < 0) {
perror ("Can't open /dev/dsp");
if (errno == EBUSY) {
/* We can hope, can't we ;) */
sound_available = 1;
return 1;
}
return 0;
}
if (ioctl (sound_fd, SNDCTL_DSP_GETFMTS, &formats) == -1) {
perror ("ioctl failed - can't use sound");
close (sound_fd);
return 0;
}
sound_available = 1;
close (sound_fd);
#ifdef DRIVESOUND
driveclick_init();
#endif
return 1;
}
static int open_sound (void) {
if (!currprefs.produce_sound)
return 0;
config_changed = 1;
clearbuffer();
currprefs.sound_stereo = 1;
//currprefs.sound_freq = fs_emu_get_audio_frequency();
//changed_prefs.sound_freq = g_audio_frequency;
//init_sound_table16 ();
sample_handler = currprefs.sound_stereo ? sample16s_handler : sample16_handler;
//obtainedfreq = currprefs.sound_freq;
obtainedfreq = g_audio_frequency;
have_sound = 1;
sound_available = 1;
update_sound (fake_vblank_hz, 1, currprefs.ntscmode);
//paula_sndbufsize = spec.samples * 2 * spec.channels;
//paula_sndbufsize = fs_emu_get_audio_buffer_size();
paula_sndbufsize = g_audio_buffer_size;
paula_sndbufpt = paula_sndbuffer;
#ifdef DRIVESOUND
write_log("initialize drivesound\n");
driveclick_init();
#endif
write_log("open_sound returning 1\n");
return 1;
}
static int open_sound (void)
{
if (!currprefs.produce_sound) {
return 0;
}
config_changed = 1;
clearbuffer();
currprefs.sound_stereo = 1;
//currprefs.sound_freq = fs_emu_get_audio_frequency();
//changed_prefs.sound_freq = sdp->obtainedfreq;
//init_sound_table16 ();
sample_handler = currprefs.sound_stereo ? sample16s_handler : sample16_handler;
//obtainedfreq = currprefs.sound_freq;
obtainedfreq = sdp->obtainedfreq;
have_sound = 1;
sound_available = 1;
paula_sndbufsize = g_audio_buffer_size;
paula_sndbufpt = paula_sndbuffer;
#ifdef DRIVESOUND
driveclick_init();
#endif
write_log("open_sound returning 1\n");
return 1;
}