void wave_device::device_start()
{
speaker_device_iterator spkiter(machine().root_device());
int speakers = spkiter.count();
if (speakers > 1)
machine().sound().stream_alloc(*this, 0, 2, machine().sample_rate(), this);
else
machine().sound().stream_alloc(*this, 0, 1, machine().sample_rate(), this);
}
void wave_device::device_start()
{
speaker_device_iterator spkiter(machine().root_device());
int speakers = spkiter.count();
if (speakers > 1)
machine().sound().stream_alloc(*this, 0, 2, machine().sample_rate());
else
machine().sound().stream_alloc(*this, 0, 1, machine().sample_rate());
m_cass = machine().device<cassette_image_device>(m_cassette_tag);
}
void info_xml_creator::output_sound(device_t &device)
{
speaker_device_iterator spkiter(device);
int speakers = spkiter.count();
// if we have no sound, zero m_output the speaker count
sound_interface_iterator snditer(device);
if (snditer.first() == NULL)
speakers = 0;
fprintf(m_output, "\t\t<sound channels=\"%d\"/>\n", speakers);
}
static DEVICE_START( wave )
{
cassette_image_device *image = NULL;
assert( device != NULL );
assert( device->static_config() != NULL );
speaker_device_iterator spkiter(device->machine().root_device());
int speakers = spkiter.count();
image = dynamic_cast<cassette_image_device *>(device->machine().device( (const char *)device->static_config()));
if (speakers > 1)
device->machine().sound().stream_alloc(*device, 0, 2, device->machine().sample_rate(), (void *)image, wave_sound_update);
else
device->machine().sound().stream_alloc(*device, 0, 1, device->machine().sample_rate(), (void *)image, wave_sound_update);
}
static STREAM_UPDATE( wave_sound_update )
{
cassette_image_device *cass = (cassette_image_device *)param;
cassette_image *cassette;
cassette_state state;
double time_index;
double duration;
stream_sample_t *left_buffer = outputs[0];
stream_sample_t *right_buffer = NULL;
int i;
speaker_device_iterator spkiter(cass->machine().root_device());
int speakers = spkiter.count();
if (speakers>1)
right_buffer = outputs[1];
state = cass->get_state();
state = (cassette_state)(state & (CASSETTE_MASK_UISTATE | CASSETTE_MASK_MOTOR | CASSETTE_MASK_SPEAKER));
if (cass->exists() && (ALWAYS_PLAY_SOUND || (state == (CASSETTE_PLAY | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED))))
{
cassette = cass->get_image();
time_index = cass->get_position();
duration = ((double) samples) / cass->machine().sample_rate();
cassette_get_samples(cassette, 0, time_index, duration, samples, 2, left_buffer, CASSETTE_WAVEFORM_16BIT);
if (speakers > 1)
cassette_get_samples(cassette, 1, time_index, duration, samples, 2, right_buffer, CASSETTE_WAVEFORM_16BIT);
for (i = samples - 1; i >= 0; i--)
{
left_buffer[i] = ((INT16 *) left_buffer)[i];
if (speakers > 1)
right_buffer[i] = ((INT16 *) right_buffer)[i];
}
}
else
{
memset(left_buffer, 0, sizeof(*left_buffer) * samples);
if (speakers > 1)
memset(right_buffer, 0, sizeof(*right_buffer) * samples);
}
}
