blargg_err_t Nes_Vrc7_Apu::init()
{
CHECK_ALLOC( opll = ym2413_init( 3579545, 3579545 / 72, 1 ) );
set_output( 0 );
volume( 1.0 );
reset();
return 0;
}
blargg_err_t Opl_Apu::init( long clock, long rate, blip_time_t period, type_t type )
{
type_ = type;
clock_ = clock;
rate_ = rate;
period_ = period;
set_output( 0, 0 );
volume( 1.0 );
switch (type)
{
case type_opll:
case type_msxmusic:
case type_smsfmunit:
opl = ym2413_init( clock, rate, 0 );
break;
case type_vrc7:
opl = ym2413_init( clock, rate, 1 );
break;
case type_opl:
opl = ym3526_init( clock, rate );
break;
case type_msxaudio:
//logfile = fopen("c:\\temp\\msxaudio.log", "wb");
opl = y8950_init( clock, rate );
opl_memory = malloc( 32768 );
y8950_set_delta_t_memory( opl, opl_memory, 32768 );
break;
case type_opl2:
opl = ym3812_init( clock, rate );
break;
}
reset();
return 0;
}
static DEVICE_START( ym2413 )
{
ym2413_state *info = get_safe_token(device);
int rate = device->clock()/72;
/* emulator create */
info->chip = ym2413_init(device, device->clock(), rate);
assert_always(info->chip != NULL, "Error creating YM2413 chip");
/* stream system initialize */
info->stream = device->machine().sound().stream_alloc(*device,0,2,rate,info,ym2413_stream_update);
ym2413_set_update_handler(info->chip, _stream_update, info);
#if 0
int i, tst;
char name[40];
num = intf->num;
tst = YM3812_sh_start (msound);
if (tst)
return 1;
for (i=0;i<num;i++)
{
ym2413_reset (i);
ym2413[i].DAC_stream = device->machine().sound().stream_alloc(*device, 0, 1, device->clock()/72, i, YM2413DAC_update);
if (ym2413[i].DAC_stream == -1)
return 1;
}
return 0;
#endif
}
//static DEVICE_START( ym2413 )
int device_start_ym2413(void **_info, int EMU_CORE, int clock, int CHIP_SAMPLING_MODE, int CHIP_SAMPLE_RATE)
{
//ym2413_state *info = get_safe_token(device);
ym2413_state *info;
int rate;
#ifdef ENABLE_ALL_CORES
if (EMU_CORE >= 0x02)
EMU_CORE = EC_EMU2413;
#else
EMU_CORE = EC_EMU2413;
#endif
info = (ym2413_state *) calloc(1, sizeof(ym2413_state));
*_info = (void*) info;
info->EMU_CORE = EMU_CORE;
info->Mode = (clock & 0x80000000) >> 31;
clock &= 0x7FFFFFFF;
rate = clock/72;
if ((CHIP_SAMPLING_MODE == 0x01 && rate < CHIP_SAMPLE_RATE) ||
CHIP_SAMPLING_MODE == 0x02)
rate = CHIP_SAMPLE_RATE;
/* emulator create */
switch(EMU_CORE)
{
#ifdef ENABLE_ALL_CORES
case EC_MAME:
info->chip = ym2413_init(clock, rate);
if (info->chip == NULL)
return 0;
//assert_always(info->chip != NULL, "Error creating YM2413 chip");
ym2413_set_chip_mode(info->chip, info->Mode);
/* stream system initialize */
//info->stream = stream_create(device,0,2,rate,info,ym2413_stream_update);
ym2413_set_update_handler(info->chip, _stream_update, info);
break;
#endif
case EC_EMU2413:
info->chip = OPLL_new(clock, rate);
if (info->chip == NULL)
return 0;
OPLL_SetChipMode(info->chip, info->Mode);
if (info->Mode)
OPLL_setPatch(info->chip, vrc7_inst);
break;
}
// Note: VRC7 instruments are set in device_reset if necessary.
/*#if 0
int i, tst;
char name[40];
num = intf->num;
tst = YM3812_sh_start (msound);
if (tst)
return 1;
for (i=0;i<num;i++)
{
ym2413_reset (i);
ym2413[i].DAC_stream = stream_create(device, 0, 1, device->clock/72, i, YM2413DAC_update);
if (ym2413[i].DAC_stream == -1)
return 1;
}
return 0;
#endif*/
return rate;
}
