static void print_game_sound(FILE *out, const game_driver *game, const machine_config *config)
{
int speakers = speaker_output_count(config);
/* if we have no sound, zero out the speaker count */
if (sound_first(config) == NULL)
speakers = 0;
fprintf(out, "\t\t<sound channels=\"%d\"/>\n", speakers);
}
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 */
VPRINTF(("total speakers = %d\n", speaker_output_count(machine->config)));
/* 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_periodic(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();
/* 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);
}
static void route_sound(void)
{
int sndnum, routenum, outputnum;
const device_config *curspeak;
/* iterate over all the sound chips */
for (sndnum = 0; sndnum < totalsnd; sndnum++)
{
sound_info *info = &sound[sndnum];
/* iterate over all routes */
for (routenum = 0; routenum < info->sound->routes; routenum++)
{
const sound_route *mroute = &info->sound->route[routenum];
speaker_info *speaker;
sound_info *sound;
/* find the target */
speaker = find_speaker_by_tag(mroute->target);
sound = find_sound_by_tag(mroute->target);
/* if neither found, it's fatal */
if (speaker == NULL && sound == NULL)
fatalerror("Sound route \"%s\" not found!\n", mroute->target);
/* if we got a speaker, bump its input count */
if (speaker != NULL)
{
if (mroute->output >= 0 && mroute->output < info->outputs)
speaker->inputs++;
else if (mroute->output == ALL_OUTPUTS)
speaker->inputs += info->outputs;
}
}
}
/* now allocate the mixers and input data */
streams_set_tag(Machine, NULL);
for (curspeak = speaker_output_first(Machine->config); curspeak != NULL; curspeak = speaker_output_next(curspeak))
{
speaker_info *info = curspeak->token;
if (info->inputs != 0)
{
info->mixer_stream = stream_create(info->inputs, 1, Machine->sample_rate, info, mixer_update);
info->input = auto_malloc(info->inputs * sizeof(*info->input));
info->inputs = 0;
}
else
logerror("Warning: speaker \"%s\" has no inputs\n", info->tag);
}
/* iterate again over all the sound chips */
for (sndnum = 0; sndnum < totalsnd; sndnum++)
{
sound_info *info = &sound[sndnum];
/* iterate over all routes */
for (routenum = 0; routenum < info->sound->routes; routenum++)
{
const sound_route *mroute = &info->sound->route[routenum];
speaker_info *speaker;
sound_info *sound;
/* find the target */
speaker = find_speaker_by_tag(mroute->target);
sound = find_sound_by_tag(mroute->target);
/* if it's a speaker, set the input */
if (speaker != NULL)
{
for (outputnum = 0; outputnum < info->outputs; outputnum++)
if (mroute->output == outputnum || mroute->output == ALL_OUTPUTS)
{
char namebuf[256];
int index;
sound_type sndtype = sndnum_to_sndti(sndnum, &index);
/* built the display name */
namebuf[0] = '\0';
/* speaker name, if more than one speaker */
if (speaker_output_count(Machine->config) > 1)
sprintf(namebuf, "%sSpeaker '%s': ", namebuf, speaker->tag);
/* device name */
sprintf(namebuf, "%s%s ", namebuf, sndnum_name(sndnum));
/* device index, if more than one of this type */
if (sndtype_count(sndtype) > 1)
sprintf(namebuf, "%s#%d ", namebuf, index);
/* channel number, if more than channel for this device */
if (info->outputs > 1)
sprintf(namebuf, "%sCh.%d", namebuf, outputnum);
/* remove final space */
if (namebuf[strlen(namebuf) - 1] == ' ')
namebuf[strlen(namebuf) - 1] = '\0';
/* fill in the input data on this speaker */
speaker->input[speaker->inputs].gain = mroute->gain;
speaker->input[speaker->inputs].default_gain = mroute->gain;
speaker->input[speaker->inputs].name = auto_strdup(namebuf);
/* connect the output to the input */
stream_set_input(speaker->mixer_stream, speaker->inputs++, info->output[outputnum].stream, info->output[outputnum].output, mroute->gain);
}
}
/* if it's a sound chip, set the input */
else
{
if (mroute->input < 0)
{
for (outputnum = 0; outputnum < info->outputs; outputnum++)
if (mroute->output == outputnum || mroute->output == ALL_OUTPUTS)
stream_set_input(sound->output[0].stream, 0, info->output[outputnum].stream, info->output[outputnum].output, mroute->gain);
}
else
{
assert(mroute->output != ALL_OUTPUTS);
for (outputnum = 0; outputnum < info->outputs; outputnum++)
if (mroute->output == outputnum)
stream_set_input(sound->output[0].stream, mroute->input, info->output[outputnum].stream, info->output[outputnum].output, mroute->gain);
}
}
}
}
}
int numberOfSpeakers(const machine_config *config)
{
int speakers = speaker_output_count(config);
return speakers;
}
