int FM_Digital_Init()
{
ConsolePrintf("%s ", Msg_Get(MSG_Sound_Init_YM2413_Digital));
opll = OPLL_new(Z80_DEFAULT_CPU_CLOCK, Sound.SampleRate);
if (opll == NULL)
{
ConsolePrintf("%s\n", Msg_Get(MSG_Failed));
return (MEKA_ERR_FAIL);
}
// FIXME-NEWSOUND: FM init
/*
FM_Digital_saChannel = stream_init ("YM-2413 #0", g_sasound.audio_sample_rate, 16, 0, FM_Digital_Update);
if (FM_Digital_saChannel == -1)
{
ConsolePrintf ("%s\n", Msg_Get(MSG_Failed));
return (MEKA_ERR_FAIL); // FIXME: Error in channel creation
}
stream_set_volume (FM_Digital_saChannel, VOLUME_MAX);
*/
OPLL_reset(opll);
ConsolePrintf("%s\n", Msg_Get(MSG_Ok));
return (MEKA_ERR_OK);
}
void CVRC7::SetSampleSpeed(uint32_t SampleRate, double ClockRate, uint32_t FrameRate)
{
m_pOPLLInt.reset(OPLL_new(OPL_CLOCK, SampleRate)); // // //
OPLL_reset(m_pOPLLInt.get());
OPLL_reset_patch(m_pOPLLInt.get(), 1);
m_iMaxSamples = (SampleRate / FrameRate) * 2; // Allow some overflow
m_iBuffer = std::vector<int16_t>(m_iMaxSamples); // // //
}
void NES_VRC7::Reset ()
{
for (int i=0; i < 0x40; ++i)
{
Write(0x9010,i);
Write(0x9030,0);
}
divider = 0;
OPLL_reset_patch (opll, patch_set);
OPLL_reset (opll);
}
void audio_init(int rate)
{
/* Clear sound context */
memset(&snd, 0, sizeof(t_snd));
/* Reset logging data */
snd.log = 0;
snd.callback = NULL;
/* Oops.. sound is disabled */
if(!rate) return;
/* Calculate buffer size in samples */
snd.bufsize = 2048;
/* Sound output */
#ifdef _3DS
snd.buffer[0] = (signed short int *)linearAlloc(snd.bufsize * 2);
snd.buffer[1] = (signed short int *)linearAlloc(snd.bufsize * 2);
#else
snd.buffer[0] = (signed short int *)malloc(snd.bufsize * 2);
snd.buffer[1] = (signed short int *)malloc(snd.bufsize * 2);
#endif
if(!snd.buffer[0] || !snd.buffer[1]) return;
memset(snd.buffer[0], 0, snd.bufsize * 2);
memset(snd.buffer[1], 0, snd.bufsize * 2);
/* YM2413 sound stream */
snd.fm_buffer = (signed short int *)malloc(snd.bufsize * 2);
if(!snd.fm_buffer) return;
memset(snd.fm_buffer, 0, snd.bufsize * 2);
/* SN76489 sound stream */
snd.psg_buffer[0] = (signed short int *)malloc(snd.bufsize * 2);
snd.psg_buffer[1] = (signed short int *)malloc(snd.bufsize * 2);
if(!snd.psg_buffer[0] || !snd.psg_buffer[1]) return;
memset(snd.psg_buffer[0], 0, snd.bufsize * 2);
memset(snd.psg_buffer[1], 0, snd.bufsize * 2);
/* Set up SN76489 emulation */
SN76496_init(0, MASTER_CLOCK, 255, rate);
/* Set up YM2413 emulation */
OPLL_init(3579545, rate) ;
opll = OPLL_new() ;
OPLL_reset(opll) ;
OPLL_reset_patch(opll,0) ; /* if use default voice data. */
/* Inform other functions that we can use sound */
snd.enabled = 1;
}
void system_reset(void)
{
cpu_reset();
vdp_reset();
sms_reset();
render_reset();
system_load_sram();
if(snd.enabled)
{
OPLL_reset(opll) ;
OPLL_reset_patch(opll,0) ; /* if use default voice data. */
}
}
void FM_Reset(void)
{
switch(snd.fm_which)
{
case SND_EMU2413:
OPLL_reset(opll);
OPLL_reset_patch(opll, 0);
break;
case SND_YM2413:
YM2413ResetChip(0);
break;
}
}
void Nes_Vrc7_Apu::reset()
{
addr = 0;
next_time = 0;
mono.last_amp = 0;
for ( int i = osc_count; --i >= 0; )
{
Vrc7_Osc& osc = oscs [i];
osc.last_amp = 0;
for ( int j = 0; j < 3; ++j )
osc.regs [j] = 0;
}
OPLL_reset( (OPLL *) opll );
}
void FM_Init(void)
{
switch(snd.fm_which)
{
case SND_EMU2413:
OPLL_init(snd.fm_clock, snd.sample_rate);
opll = OPLL_new();
OPLL_reset(opll);
OPLL_reset_patch(opll, 0);
break;
case SND_YM2413:
YM2413Init(1, snd.fm_clock, snd.sample_rate);
YM2413ResetChip(0);
break;
}
}
//static DEVICE_RESET( ym2413 )
void device_reset_ym2413(void *_info)
{
//ym2413_state *info = get_safe_token(device);
ym2413_state *info = (ym2413_state *)_info;
switch(info->EMU_CORE)
{
#ifdef ENABLE_ALL_CORES
case EC_MAME:
ym2413_reset_chip(info->chip);
if (info->Mode)
ym2413_override_patches(info->chip, vrc7_inst);
break;
#endif
case EC_EMU2413:
OPLL_reset(info->chip);
// EMU2413 doesn't reset the patch data in OPLL_reset
//if (info->Mode)
// OPLL_setPatch(info->chip, vrc7_inst);
break;
}
}
void system_load_state(void *fd)
{
int i;
uint8 reg[0x40];
/* Initialize everything */
cpu_reset();
system_reset();
/* Load VDP context */
fread(&vdp, sizeof(t_vdp), 1, fd);
/* Load SMS context */
fread(&sms, sizeof(t_sms), 1, fd);
/* Load Z80 context */
fread(Z80_Context, sizeof(Z80_Regs), 1, fd);
fread(&after_EI, sizeof(int), 1, fd);
/* Load YM2413 registers */
fread(reg, 0x40, 1, fd);
/* Load SN76489 context */
fread(&sn[0], sizeof(t_SN76496), 1, fd);
/* Restore callbacks */
z80_set_irq_callback(sms_irq_callback);
cpu_readmap[0] = cart.rom + 0x0000; /* 0000-3FFF */
cpu_readmap[1] = cart.rom + 0x2000;
cpu_readmap[2] = cart.rom + 0x4000; /* 4000-7FFF */
cpu_readmap[3] = cart.rom + 0x6000;
cpu_readmap[4] = cart.rom + 0x0000; /* 0000-3FFF */
cpu_readmap[5] = cart.rom + 0x2000;
cpu_readmap[6] = sms.ram;
cpu_readmap[7] = sms.ram;
cpu_writemap[0] = sms.dummy;
cpu_writemap[1] = sms.dummy;
cpu_writemap[2] = sms.dummy;
cpu_writemap[3] = sms.dummy;
cpu_writemap[4] = sms.dummy;
cpu_writemap[5] = sms.dummy;
cpu_writemap[6] = sms.ram;
cpu_writemap[7] = sms.ram;
sms_mapper_w(3, sms.fcr[3]);
sms_mapper_w(2, sms.fcr[2]);
sms_mapper_w(1, sms.fcr[1]);
sms_mapper_w(0, sms.fcr[0]);
/* Force full pattern cache update */
is_vram_dirty = 1;
memset(vram_dirty, 1, 0x200);
/* Restore palette */
for(i = 0; i < PALETTE_SIZE; i += 1)
palette_sync(i);
/* Restore sound state */
if(snd.enabled)
{
/* Clear YM2413 context */
OPLL_reset(opll) ;
OPLL_reset_patch(opll,0) ; /* if use default voice data. */
/* Restore rhythm enable first */
ym2413_write(0, 0, 0x0E);
ym2413_write(0, 1, reg[0x0E]);
/* User instrument settings */
for(i = 0x00; i <= 0x07; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
/* Channel frequency */
for(i = 0x10; i <= 0x18; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
/* Channel frequency + ctrl. */
for(i = 0x20; i <= 0x28; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
/* Instrument and volume settings */
for(i = 0x30; i <= 0x38; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
}
}
// Reset emulated YM-2413
void FM_Digital_Reset()
{
OPLL_reset(opll);
}
int main(void){
static char wave[DATALENGTH*2] ;
char filename[16] = "temp.wav" ;
char header[46] ;
int i;
clock_t start,finish ;
FILE *fp ;
OPLL *opll ;
/* Create WAVE header */
chunkID(header,"RIFF") ;
DWORD(header+4,DATALENGTH*2+36) ;
chunkID(header+8,"WAVE") ;
chunkID(header+12,"fmt ") ;
DWORD(header+16,16) ;
WORD(header+20,1) ; /* WAVE_FORMAT_PCM */
WORD(header+22,1) ; /* channel 1=mono,2=stereo */
DWORD(header+24,SAMPLERATE) ; /* samplesPerSec */
DWORD(header+28,2*SAMPLERATE) ; /* bytesPerSec */
WORD(header+32,2) ; /* blockSize */
WORD(header+34,16) ; /* bitsPerSample */
chunkID(header+36,"data") ;
DWORD(header+40,2*DATALENGTH) ;
opll = OPLL_new(MSX_CLK,SAMPLERATE) ;
OPLL_reset(opll);
OPLL_writeReg(opll,0x30,0x30) ; /* select PIANO Voice to ch1. */
OPLL_writeReg(opll,0x10,0x80) ; /* set F-Number(L). */
OPLL_writeReg(opll,0x20,0x15) ; /* set BLK & F-Number(H) and keyon. */
start = clock() ;
i=0;
for(i=0;i<DATALENGTH;i++)
{
WORD(wave+i*2,OPLL_calc(opll));
}
finish = clock() ;
OPLL_delete(opll) ;
printf("It has been %f sec to calc %d waves.\n",
(double)(finish-start)/CLOCKS_PER_SEC, DATALENGTH) ;
printf("%f times faster than real YM2413.\n",
((double)DATALENGTH/SAMPLERATE)/((double)(finish-start)/CLOCKS_PER_SEC)) ;
fp = fopen(filename,"wb") ;
if(fp == NULL) return 1 ;
fwrite(header,46,1,fp) ;
fwrite(wave,DATALENGTH,2,fp) ;
fclose(fp) ;
printf("Wrote : %s\n",filename) ;
return 0 ;
}
