void osd_sound_enable (int enable_it)
{
if (sound_stream && enable_it)
{
sound_enabled = 1;
xmame_func_set(sound_enabled); /* for QUASI88 */
if (!sound_dsp)
{
if (!(sound_dsp = sysdep_dsp_create(NULL,
sound_dsp_device,
&options_samplerate,
&type,
sound_bufsize * (1 / Machine__drv__frames_per_second),
SYSDEP_DSP_EMULATE_TYPE | SYSDEP_DSP_O_NONBLOCK)))
{
sound_enabled = 0;
xmame_func_set(sound_enabled); /* for QUASI88 */
}
else
{
sound_stream_destroy(sound_stream);
if (!(sound_stream = sound_stream_create(sound_dsp, type,
sound_samples_per_frame, 3)))
{
osd_stop_audio_stream();
sound_enabled = 0;
xmame_func_set(sound_enabled); /* for QUASI88 */
}
}
}
}
else
{
if (sound_dsp)
{
sysdep_dsp_destroy(sound_dsp);
sound_dsp = NULL;
}
sound_enabled = 0;
xmame_func_set(sound_enabled); /* for QUASI88 */
}
}
void osd_sound_enable (int enable_it)
{
if (sound_stream && enable_it)
{
sound_enabled = 1;
if (!sound_dsp)
{
if (!(sound_dsp = sysdep_dsp_create(NULL,
sound_dsp_device,
&options.samplerate,
&type,
sound_bufsize * (1 / Machine->drv->frames_per_second),
SYSDEP_DSP_EMULATE_TYPE | SYSDEP_DSP_O_NONBLOCK)))
sound_enabled = 0;
else
{
sound_stream_destroy(sound_stream);
if (!(sound_stream = sound_stream_create(sound_dsp, type,
sound_samples_per_frame, 3)))
{
osd_stop_audio_stream();
sound_enabled = 0;
}
}
}
}
else
{
if (sound_dsp)
{
sysdep_dsp_destroy(sound_dsp);
sound_dsp = NULL;
}
sound_enabled = 0;
}
}
int osd_start_audio_stream(int stereo)
{
type = SYSDEP_DSP_16BIT | (stereo? SYSDEP_DSP_STEREO:SYSDEP_DSP_MONO);
sound_stream = NULL;
/* create dsp */
if(sound_enabled)
{
if(!(sound_dsp = sysdep_dsp_create(NULL,
sound_dsp_device,
&options_samplerate,
&type,
sound_bufsize * (1 / Machine__drv__frames_per_second),
SYSDEP_DSP_EMULATE_TYPE | SYSDEP_DSP_O_NONBLOCK)))
{
osd_stop_audio_stream();
sound_enabled = 0;
xmame_func_set(sound_enabled); /* for QUASI88 */
}
}
/* create sound_stream */
if(sound_enabled)
{
#if 0 /* forQUASI88 */
/* sysdep_dsp_open may have changed the samplerate */
Machine->sample_rate = options.samplerate;
#endif /* forQUASI88 */
/* calculate samples_per_frame */
sound_samples_per_frame = Machine__sample_rate /
Machine__drv__frames_per_second;
#ifdef SOUND_DEBUG
fprintf(stderr, "debug: sound: samples_per_frame = %d\n",
sound_samples_per_frame);
#endif
if(!(sound_stream = sound_stream_create(sound_dsp, type,
sound_samples_per_frame, 3)))
{
osd_stop_audio_stream();
sound_enabled = 0;
xmame_func_set(sound_enabled); /* for QUASI88 */
}
}
/* if sound is not enabled, set the samplerate of the core to 0 */
if(!sound_enabled)
{
#if 0 /* forQUASI88 */
if(sound_fake)
Machine->sample_rate = options.samplerate = 8000;
else
Machine->sample_rate = options.samplerate = 0;
#else /* forQUASI88 */
if(sound_fake)
Machine__sample_rate = 8000;
else
Machine__sample_rate = 0;
#endif /* forQUASI88 */
/* calculate samples_per_frame */
sound_samples_per_frame = Machine__sample_rate /
Machine__drv__frames_per_second;
return sound_samples_per_frame;
}
/* create a mixer instance */
sound_mixer = sysdep_mixer_create(NULL, sound_mixer_device,
SYSDEP_MIXER_RESTORE_SETTINS_ON_EXIT);
/* check if the user specified a volume, and ifso set it */
if(sound_mixer && rc_get_priority2(sound_opts, "volume"))
osd_set_mastervolume(sound_attenuation);
return sound_samples_per_frame;
}
