static void *ym2151_start(int sndindex, int clock, const void *config)
{
static const struct YM2151interface dummy = { 0 };
int rate = Machine->sample_rate;
struct ym2151_info *info;
info = auto_malloc(sizeof(*info));
memset(info, 0, sizeof(*info));
info->intf = config ? config : &dummy;
if( rate == 0 ) rate = 1000; /* kludge to prevent nasty crashes */
rate = clock/64;
/* stream setup */
info->stream = stream_create(0,2,rate,info,ym2151_update);
info->chip = YM2151Init(sndindex,clock,rate);
state_save_register_func_postload_ptr(ym2151_postload, info);
if (info->chip != 0)
{
YM2151SetIrqHandler(info->chip,info->intf->irqhandler);
YM2151SetPortWriteHandler(info->chip,info->intf->portwritehandler);
return info;
}
return NULL;
}
static int my_YM2151_sh_start(const struct MachineSound *msound,int mode)
{
int i,j;
int rate = Machine->sample_rate;
char buf[YM2151_NUMBUF][40];
const char *name[YM2151_NUMBUF];
int mixed_vol,vol[YM2151_NUMBUF];
if( rate == 0 ) rate = 1000; /* kludge to prevent nasty crashes */
intf = msound->sound_interface;
if( mode ) FMMode = CHIP_YM2151_ALT;
else FMMode = CHIP_YM2151_DAC;
switch(FMMode)
{
#if (HAS_YM2151)
case CHIP_YM2151_DAC: /* Tatsuyuki's */
/* stream system initialize */
for (i = 0;i < intf->num;i++)
{
mixed_vol = intf->volume[i];
/* stream setup */
for (j = 0 ; j < YM2151_NUMBUF ; j++)
{
name[j]=buf[j];
vol[j] = mixed_vol & 0xffff;
mixed_vol>>=16;
sprintf(buf[j],"%s #%d Ch%d",sound_name(msound),i,j+1);
}
stream[i] = stream_init_multi(YM2151_NUMBUF,
name,vol,rate,i,OPMUpdateOne);
}
/* Set Timer handler */
for (i = 0; i < intf->num; i++)
{
Timer[i][0] = timer_alloc(timer_callback_2151);
Timer[i][1] = timer_alloc(timer_callback_2151);
}
if (OPMInit(intf->num,intf->baseclock,Machine->sample_rate,TimerHandler,IRQHandler) == 0)
{
/* set port handler */
for (i = 0; i < intf->num; i++)
OPMSetPortHander(i,intf->portwritehandler[i]);
return 0;
}
/* error */
return 1;
#endif
#if (HAS_YM2151_ALT)
case CHIP_YM2151_ALT: /* Jarek's */
if (options.use_filter)
rate = intf->baseclock/64;
/* stream system initialize */
for (i = 0;i < intf->num;i++)
{
/* stream setup */
mixed_vol = intf->volume[i];
for (j = 0 ; j < YM2151_NUMBUF ; j++)
{
name[j]=buf[j];
vol[j] = mixed_vol & 0xffff;
mixed_vol>>=16;
sprintf(buf[j],"%s #%d Ch%d",sound_name(msound),i,j+1);
}
stream[i] = stream_init_multi(YM2151_NUMBUF,
name,vol,rate,i,YM2151UpdateOne);
}
if (YM2151Init(intf->num,intf->baseclock,rate) == 0)
{
for (i = 0; i < intf->num; i++)
{
YM2151SetIrqHandler(i,intf->irqhandler[i]);
YM2151SetPortWriteHandler(i,intf->portwritehandler[i]);
}
return 0;
}
return 1;
#endif
}
return 1;
}
int YM2151_sh_start(struct YM2151interface *interface,int mode)
{
int i,j;
int rate = Machine->sample_rate;
char buf[YM2151_NUMBUF][40];
const char *name[YM2151_NUMBUF];
int vol;
if( rate == 0 ) rate = 1000; /* kludge to prevent nasty crashes */
intf = interface;
if( mode ) FMMode = CHIP_YM2151_ALT;
else FMMode = CHIP_YM2151_DAC;
switch(FMMode)
{
case CHIP_YM2151_DAC: /* Tatsuyuki's */
/* stream system initialize */
for (i = 0;i < intf->num;i++)
{
/* stream setup */
for (j = 0 ; j < YM2151_NUMBUF ; j++)
{
char *chname[2] = { "Lt", "Rt" };
int ch;
name[j] = buf[j];
ch = j & 1;
if (intf->volume[i] & YM2151_STEREO_REVERSE)
ch ^= 1;
sprintf(buf[j],"YM2151 #%d %s",i,chname[ch]);
}
stream[i] = stream_init_multi(YM2151_NUMBUF,
name,(int)(((double)rate)/snd_opm_reduction),Machine->sample_bits,
i,OPMUpdateOne);
/* volume setup */
vol = intf->volume[i] & 0xff;
for( j=0 ; j < YM2151_NUMBUF ; j++ )
{
int ch;
ch = j & 1;
if (intf->volume[i] & YM2151_STEREO_REVERSE)
ch ^= 1;
stream_set_volume(stream[i]+j,vol);
stream_set_pan(stream[i]+j,ch ? OSD_PAN_RIGHT : OSD_PAN_LEFT);
}
}
/* Set Timer handler */
for (i = 0; i < intf->num; i++)
Timer[i][0] =Timer[i][1] = 0;
if (OPMInit(intf->num,
// intf->baseclock,
((100.0-((snd_opm_reduction-1.0)*10.0))*((double)intf->baseclock))/100.0,
// Machine->sample_rate,
((100.0-((snd_opm_reduction-1.0)*10.0))*((double)Machine->sample_rate))/100.0,
Machine->sample_bits,TimerHandler,0) == 0)
{
/* set port handler */
for (i = 0; i < intf->num; i++)
OPMSetPortHander(i,intf->portwritehandler[i]);
return 0;
}
/* error */
return 1;
case CHIP_YM2151_ALT: /* Jarek's */
/* stream system initialize */
for (i = 0;i < intf->num;i++)
{
/* stream setup */
for (j = 0 ; j < YM2151_NUMBUF ; j++)
{
char *chname[2] = { "Lt", "Rt" };
int ch;
name[j] = buf[j];
ch = j & 1;
if (intf->volume[i] & YM2151_STEREO_REVERSE)
ch ^= 1;
sprintf(buf[j],"YM2151 #%d %s",i,chname[ch]);
}
stream[i] = stream_init_multi(YM2151_NUMBUF,
name,rate,Machine->sample_bits,
i,YM2151UpdateOne);
/* volume setup */
vol = intf->volume[i] & 0xff;
for( j=0 ; j < YM2151_NUMBUF ; j++ )
{
int ch;
ch = j & 1;
if (intf->volume[i] & YM2151_STEREO_REVERSE)
ch ^= 1;
stream_set_volume(stream[i]+j,vol);
stream_set_pan(stream[i]+j,ch ? OSD_PAN_RIGHT : OSD_PAN_LEFT);
}
}
if (YM2151Init(intf->num,intf->baseclock,Machine->sample_rate,Machine->sample_bits) == 0)
{
for (i = 0; i < intf->num; i++)
{
YM2151SetIrqHandler(i,intf->irqhandler[i]);
YM2151SetPortWriteHandler(i,intf->portwritehandler[i]);
}
return 0;
}
return 1;
case CHIP_YM2151_OPL:
break;
}
return 1;
}
