static void *ymf262_start(int sndindex, int clock, const void *config)
{
static const struct YMF262interface dummy = { 0 };
int rate = Machine->sample_rate;
struct ymf262_info *info;
info = auto_malloc(sizeof(*info));
memset(info, 0, sizeof(*info));
info->intf = config ? config : &dummy;
rate = clock/288;
/* stream system initialize */
info->chip = YMF262Init(clock,rate);
if (info->chip == NULL)
return NULL;
info->stream = stream_create(0,4,rate,info,ymf262_stream_update);
/* YMF262 setup */
YMF262SetTimerHandler (info->chip, TimerHandler_262, info);
YMF262SetIRQHandler (info->chip, IRQHandler_262, info);
YMF262SetUpdateHandler(info->chip, _stream_update, info);
info->timer[0] = timer_alloc_ptr(timer_callback_262_0, info);
info->timer[1] = timer_alloc_ptr(timer_callback_262_1, info);
return info;
}
int YMF262_sh_start(const struct MachineSound *msound)
{
int i,chip;
int rate = Machine->sample_rate;
intf_262 = msound->sound_interface;
if( intf_262->num > MAX_262 ) return 1;
if (options.use_filter)
rate = intf_262->baseclock/288;
/* Timer state clear */
memset(Timer_262,0,sizeof(Timer_262));
/* stream system initialize */
if ( YMF262Init(intf_262->num,intf_262->baseclock,rate) != 0)
return 1;
for (chip = 0;chip < intf_262->num; chip++)
{
int mixed_vol;
int vol[4]; /* four separate outputs */
char buf[4][40];
const char *name[4];
mixed_vol = intf_262->mixing_levelAB[chip];
for (i=0; i<4; i++)
{
if (i==2) /*channels C ad D use separate field */
mixed_vol = intf_262->mixing_levelCD[chip];
vol[i] = mixed_vol & 0xffff;
mixed_vol >>= 16;
name[i] = buf[i];
sprintf(buf[i],"%s #%d ch%c",sound_name(msound),chip,'A'+i);
logerror("%s #%d ch%c vol %d\n",sound_name(msound),chip,'A'+i,mixed_vol);
}
stream_262[chip] = stream_init_multi(4,name,vol,rate,chip,YMF262UpdateOne);
/* YMF262 setup */
YMF262SetTimerHandler (chip, TimerHandler_262, chip*2);
YMF262SetIRQHandler (chip, IRQHandler_262, chip);
YMF262SetUpdateHandler(chip, stream_update, stream_262[chip]);
Timer_262[chip*2+0] = timer_alloc(timer_callback_262);
Timer_262[chip*2+1] = timer_alloc(timer_callback_262);
}
return 0;
}
