void sound_init(running_machine *machine)
{
attotime update_frequency = SOUND_UPDATE_FREQUENCY;
const char *filename;
/* handle -nosound */
nosound_mode = !options_get_bool(mame_options(), OPTION_SOUND);
if (nosound_mode)
Machine->sample_rate = 11025;
/* count the speakers */
for (totalspeakers = 0; Machine->drv->speaker[totalspeakers].tag; totalspeakers++) ;
VPRINTF(("total speakers = %d\n", totalspeakers));
/* allocate memory for mix buffers */
leftmix = auto_malloc(Machine->sample_rate * sizeof(*leftmix));
rightmix = auto_malloc(Machine->sample_rate * sizeof(*rightmix));
finalmix = auto_malloc(Machine->sample_rate * sizeof(*finalmix));
/* allocate a global timer for sound timing */
sound_update_timer = timer_alloc(sound_update, NULL);
timer_adjust(sound_update_timer, update_frequency, 0, update_frequency);
/* initialize the streams engine */
VPRINTF(("streams_init\n"));
streams_init(machine, update_frequency.attoseconds);
/* now start up the sound chips and tag their streams */
VPRINTF(("start_sound_chips\n"));
start_sound_chips();
/* then create all the speakers */
VPRINTF(("start_speakers\n"));
start_speakers();
/* finally, do all the routing */
VPRINTF(("route_sound\n"));
route_sound();
/* open the output WAV file if specified */
filename = options_get_string(mame_options(), OPTION_WAVWRITE);
if (filename[0] != 0)
wavfile = wav_open(filename, machine->sample_rate, 2);
/* enable sound by default */
global_sound_enabled = TRUE;
sound_muted = FALSE;
sound_set_attenuation(options_get_int(mame_options(), OPTION_VOLUME));
/* register callbacks */
config_register("mixer", sound_load, sound_save);
add_pause_callback(machine, sound_pause);
add_reset_callback(machine, sound_reset);
add_exit_callback(machine, sound_exit);
}
void sound_init(running_machine *machine)
{
sound_private *global;
const char *filename;
machine->sound_data = global = auto_alloc_clear(machine, sound_private);
/* handle -nosound */
global->nosound_mode = !options_get_bool(machine->options(), OPTION_SOUND);
if (global->nosound_mode)
machine->sample_rate = 11025;
/* count the speakers */
VPRINTF(("total speakers = %d\n", speaker_output_count(machine->config)));
/* allocate memory for mix buffers */
global->leftmix = auto_alloc_array(machine, INT32, machine->sample_rate);
global->rightmix = auto_alloc_array(machine, INT32, machine->sample_rate);
global->finalmix = auto_alloc_array(machine, INT16, machine->sample_rate);
/* allocate a global timer for sound timing */
global->update_timer = timer_alloc(machine, sound_update, NULL);
timer_adjust_periodic(global->update_timer, STREAMS_UPDATE_ATTOTIME, 0, STREAMS_UPDATE_ATTOTIME);
/* finally, do all the routing */
VPRINTF(("route_sound\n"));
route_sound(machine);
/* open the output WAV file if specified */
filename = options_get_string(machine->options(), OPTION_WAVWRITE);
if (filename[0] != 0)
global->wavfile = wav_open(filename, machine->sample_rate, 2);
/* enable sound by default */
global->enabled = TRUE;
global->muted = FALSE;
sound_set_attenuation(machine, options_get_int(machine->options(), OPTION_VOLUME));
/* register callbacks */
config_register(machine, "mixer", sound_load, sound_save);
machine->add_notifier(MACHINE_NOTIFY_PAUSE, sound_pause);
machine->add_notifier(MACHINE_NOTIFY_RESUME, sound_resume);
machine->add_notifier(MACHINE_NOTIFY_RESET, sound_reset);
machine->add_notifier(MACHINE_NOTIFY_EXIT, sound_exit);
}