static void *ym3526_start(int sndindex, int clock, const void *config)
{
static const struct YM3526interface dummy = { 0 };
int rate = Machine->sample_rate;
struct ym3526_info *info;
info = auto_malloc(sizeof(*info));
memset(info, 0, sizeof(*info));
info->intf = config ? config : &dummy;
rate = clock/72;
/* stream system initialize */
info->chip = YM3526Init(clock,rate);
if (!info->chip)
return NULL;
info->stream = stream_create(0,1,rate,info,ym3526_stream_update);
/* YM3526 setup */
YM3526SetTimerHandler (info->chip, TimerHandler_3526, info);
YM3526SetIRQHandler (info->chip, IRQHandler_3526, info);
YM3526SetUpdateHandler(info->chip, _stream_update_3526, info);
info->timer[0] = timer_alloc_ptr(timer_callback_3526_0, info);
info->timer[1] = timer_alloc_ptr(timer_callback_3526_1, info);
return info;
}
int YM3526_sh_start(const struct MachineSound *msound)
{
int i;
int rate = Machine->sample_rate;
intf_3526 = msound->sound_interface;
if( intf_3526->num > MAX_3526 ) return 1;
if (options.use_filter)
rate = intf_3526->baseclock/72;
/* Timer state clear */
memset(Timer_3526,0,sizeof(Timer_3526));
/* stream system initialize */
if ( YM3526Init(intf_3526->num,intf_3526->baseclock,rate) != 0)
return 1;
for (i = 0;i < intf_3526->num;i++)
{
/* stream setup */
char name[40];
int vol = intf_3526->mixing_level[i];
/* emulator create */
/* stream setup */
sprintf(name,"%s #%d",sound_name(msound),i);
stream_3526[i] = stream_init(name,vol,rate,i,YM3526UpdateOne);
/* YM3526 setup */
YM3526SetTimerHandler (i, TimerHandler_3526, i*2);
YM3526SetIRQHandler (i, IRQHandler_3526, i);
YM3526SetUpdateHandler(i, stream_update, stream_3526[i]);
Timer_3526[i*2+0] = timer_alloc(timer_callback_3526);
Timer_3526[i*2+1] = timer_alloc(timer_callback_3526);
}
return 0;
}