mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-06-02 16:48:43 +02:00
[Core/Sound] added (optional) YM2612 DAC distortion emulation in MAME core & removed configurable YM2612 DAC resolution (deprecated)
This commit is contained in:
EkeEke
parent
b62ce884b8
commit
902dc4c4c0
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@ -121,6 +121,7 @@ Genesis Plus GX 1.7.5 (xx/xx/xxxx) (Eke-Eke)
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[Core/Sound]
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---------------
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* added discrete YM2612 DAC distortion emulation (optional)
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* rewrote optimized & more accurate PSG core from scratch
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* removed PSG boost noise feature & added optional high-quality PSG resampling
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* fixed YM2612 self-feedback regression introduced in 1.7.1
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@ -150,7 +150,7 @@ void sound_init( void )
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{
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/* MAME */
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YM2612Init();
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YM2612Config(config.dac_bits);
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YM2612Config(config.ym2612);
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YM_Reset = YM2612ResetChip;
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YM_Update = YM2612Update;
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YM_Write = YM2612Write;
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@ -288,7 +288,6 @@ int sound_context_save(uint8 *state)
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else
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{
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bufferptr += YM2612SaveContext(state + sizeof(config.ym3438));
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YM2612Config(config.dac_bits);
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}
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#else
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bufferptr = YM2612SaveContext(state);
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@ -325,11 +324,9 @@ int sound_context_load(uint8 *state)
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else
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{
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bufferptr += YM2612LoadContext(state + sizeof(config_ym3438));
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YM2612Config(config.dac_bits);
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}
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#else
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bufferptr = YM2612LoadContext(state);
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YM2612Config(config.dac_bits);
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#endif
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}
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else
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@ -18,12 +18,16 @@
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** TODO:
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** - better documentation
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** - BUSY flag emulation
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** - accurate DAC output
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*/
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/*
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** CHANGELOG:
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**
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** 03-12-2017 Eke-Eke (Genesis Plus GX):
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** - improved 9-bit DAC emulation accuracy
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** - added discrete YM2612 DAC distortion emulation ("ladder effect")
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** - replaced configurable DAC depth with configurable chip types (discrete, integrated or enhanced)
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**
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** 26-09-2017 Eke-Eke (Genesis Plus GX):
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** - fixed EG counter loopback behavior (verified on YM3438 die)
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** - reverted changes to EG rates 2-7 increment values
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@ -626,8 +630,11 @@ static YM2612 ym2612;
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/* current chip state */
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static INT32 m2,c1,c2; /* Phase Modulation input for operators 2,3,4 */
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static INT32 mem; /* one sample delay memory */
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static INT32 out_fm[8]; /* outputs of working channels */
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static UINT32 bitmask; /* working channels output bitmasking (DAC quantization) */
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static INT32 out_fm[6]; /* outputs of working channels */
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/* chip type */
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static UINT32 op_mask[8][4]; /* operator output bitmasking (DAC quantization) */
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static int chip_type = YM2612_DISCRETE;
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INLINE void FM_KEYON(FM_CH *CH , int s )
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@ -1408,22 +1415,22 @@ INLINE void refresh_fc_eg_chan(FM_CH *CH )
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#define volume_calc(OP) ((OP)->vol_out + (AM & (OP)->AMmask))
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INLINE signed int op_calc(UINT32 phase, unsigned int env, unsigned int pm)
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INLINE signed int op_calc(UINT32 phase, unsigned int env, unsigned int pm, unsigned int opmask)
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{
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UINT32 p = (env<<3) + sin_tab[ ( (phase >> SIN_BITS) + (pm >> 1) ) & SIN_MASK ];
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if (p >= TL_TAB_LEN)
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return 0;
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return tl_tab[p];
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return (tl_tab[p] & opmask);
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}
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INLINE signed int op_calc1(UINT32 phase, unsigned int env, unsigned int pm)
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INLINE signed int op_calc1(UINT32 phase, unsigned int env, unsigned int pm, unsigned int opmask)
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{
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UINT32 p = (env<<3) + sin_tab[ ( ( phase >> SIN_BITS ) + pm ) & SIN_MASK ];
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if (p >= TL_TAB_LEN)
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return 0;
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return tl_tab[p];
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return (tl_tab[p] & opmask);
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}
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INLINE void chan_calc(FM_CH *CH, int num)
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@ -1433,6 +1440,7 @@ INLINE void chan_calc(FM_CH *CH, int num)
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INT32 out = 0;
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UINT32 AM = ym2612.OPN.LFO_AM >> CH->ams;
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unsigned int eg_out = volume_calc(&CH->SLOT[SLOT1]);
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UINT32 *mask = op_mask[CH->ALGO];
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m2 = c1 = c2 = mem = 0;
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@ -1443,7 +1451,7 @@ INLINE void chan_calc(FM_CH *CH, int num)
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if (CH->FB < SIN_BITS)
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out = (CH->op1_out[0] + CH->op1_out[1]) >> CH->FB;
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out = op_calc1(CH->SLOT[SLOT1].phase, eg_out, out );
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out = op_calc1(CH->SLOT[SLOT1].phase, eg_out, out, mask[0]);
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}
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CH->op1_out[0] = CH->op1_out[1];
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@ -1459,22 +1467,21 @@ INLINE void chan_calc(FM_CH *CH, int num)
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eg_out = volume_calc(&CH->SLOT[SLOT3]);
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if( eg_out < ENV_QUIET ) /* SLOT 3 */
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*CH->connect3 += op_calc(CH->SLOT[SLOT3].phase, eg_out, m2);
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*CH->connect3 += op_calc(CH->SLOT[SLOT3].phase, eg_out, m2, mask[2]);
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eg_out = volume_calc(&CH->SLOT[SLOT2]);
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if( eg_out < ENV_QUIET ) /* SLOT 2 */
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*CH->connect2 += op_calc(CH->SLOT[SLOT2].phase, eg_out, c1);
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*CH->connect2 += op_calc(CH->SLOT[SLOT2].phase, eg_out, c1, mask[1]);
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eg_out = volume_calc(&CH->SLOT[SLOT4]);
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if( eg_out < ENV_QUIET ) /* SLOT 4 */
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*CH->connect4 += op_calc(CH->SLOT[SLOT4].phase, eg_out, c2);
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*CH->connect4 += op_calc(CH->SLOT[SLOT4].phase, eg_out, c2, mask[3]);
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/* store current MEM */
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CH->mem_value = mem;
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/* update phase counters AFTER output calculations */
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if(CH->pms)
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if (CH->pms)
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{
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/* 3-slot mode */
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if ((ym2612.OPN.ST.mode & 0xC0) && (CH == &ym2612.CH[2]))
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@ -1515,7 +1522,7 @@ INLINE void OPNWriteMode(int r, int v)
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case 0x21: /* Test */
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break;
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case 0x22: /* LFO FREQ (YM2608/YM2610/YM2610B/ym2612) */
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case 0x22: /* LFO FREQ */
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if (v&8) /* LFO enabled ? */
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{
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ym2612.OPN.lfo_timer_overflow = lfo_samples_per_step[v&7];
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@ -1550,7 +1557,6 @@ INLINE void OPNWriteMode(int r, int v)
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if( c == 3 ) break;
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if (v&0x04) c+=3; /* CH 4-6 */
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CH = &ym2612.CH[c];
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if (v&0x10) FM_KEYON(CH,SLOT1); else FM_KEYOFF(CH,SLOT1);
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if (v&0x20) FM_KEYON(CH,SLOT2); else FM_KEYOFF(CH,SLOT2);
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if (v&0x40) FM_KEYON(CH,SLOT3); else FM_KEYOFF(CH,SLOT3);
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@ -1686,8 +1692,6 @@ INLINE void OPNWriteReg(int r, int v)
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That is not necessary, but then EG will be generating Attack phase.
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*/
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break;
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case 0xa0:
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@ -1722,7 +1726,7 @@ INLINE void OPNWriteReg(int r, int v)
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ym2612.OPN.SL3.block_fnum[c] = (blk<<11) | fn;
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ym2612.CH[2].SLOT[SLOT1].Incr=-1;
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}
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break;
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break;
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case 3: /* 0xac-0xae : 3CH FNUM2,BLK */
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if(r < 0x100)
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ym2612.OPN.SL3.fn_h = v&0x3f;
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@ -1737,7 +1741,7 @@ INLINE void OPNWriteReg(int r, int v)
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CH->ALGO = v&7;
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CH->FB = SIN_BITS - ((v>>3)&7);
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setup_connection( CH, c );
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break;
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break;
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}
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case 1: /* 0xb4-0xb6 : L , R , AMS , PMS */
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/* b0-2 PMS */
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@ -1747,8 +1751,8 @@ INLINE void OPNWriteReg(int r, int v)
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CH->ams = lfo_ams_depth_shift[(v>>4) & 0x03];
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/* PAN : b7 = L, b6 = R */
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ym2612.OPN.pan[ c*2 ] = (v & 0x80) ? bitmask : 0;
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ym2612.OPN.pan[ c*2+1 ] = (v & 0x40) ? bitmask : 0;
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ym2612.OPN.pan[ c*2 ] = (v & 0x80) ? 0xffffffff : 0;
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ym2612.OPN.pan[ c*2+1 ] = (v & 0x40) ? 0xffffffff : 0;
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break;
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}
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break;
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@ -1884,6 +1888,15 @@ static void init_tables(void)
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}
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}
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/* build default OP mask table */
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for (i = 0;i < 8;i++)
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{
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for (d = 0;d < 4;d++)
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{
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op_mask[i][d] = 0xffffffff;
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}
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}
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}
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@ -2020,7 +2033,7 @@ void YM2612Update(int *buffer, int length)
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refresh_fc_eg_chan(&ym2612.CH[5]);
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/* buffering */
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for(i=0; i<length ; i++)
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for(i=0; i<length; i++)
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{
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/* clear outputs */
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out_fm[0] = 0;
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@ -2066,21 +2079,21 @@ void YM2612Update(int *buffer, int length)
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advance_eg_channels(&ym2612.CH[0], ym2612.OPN.eg_cnt);
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}
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/* 14-bit accumulator channels outputs (range is -8192;+8192) */
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if (out_fm[0] > 8192) out_fm[0] = 8192;
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/* channels accumulator output clipping (14-bit max) */
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if (out_fm[0] > 8191) out_fm[0] = 8191;
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else if (out_fm[0] < -8192) out_fm[0] = -8192;
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if (out_fm[1] > 8192) out_fm[1] = 8192;
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if (out_fm[1] > 8191) out_fm[1] = 8191;
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else if (out_fm[1] < -8192) out_fm[1] = -8192;
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if (out_fm[2] > 8192) out_fm[2] = 8192;
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if (out_fm[2] > 8191) out_fm[2] = 8191;
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else if (out_fm[2] < -8192) out_fm[2] = -8192;
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if (out_fm[3] > 8192) out_fm[3] = 8192;
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if (out_fm[3] > 8191) out_fm[3] = 8191;
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else if (out_fm[3] < -8192) out_fm[3] = -8192;
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if (out_fm[4] > 8192) out_fm[4] = 8192;
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if (out_fm[4] > 8191) out_fm[4] = 8191;
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else if (out_fm[4] < -8192) out_fm[4] = -8192;
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if (out_fm[5] > 8192) out_fm[5] = 8192;
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if (out_fm[5] > 8191) out_fm[5] = 8191;
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else if (out_fm[5] < -8192) out_fm[5] = -8192;
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/* stereo DAC channels outputs mixing */
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/* stereo DAC output panning & mixing */
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lt = ((out_fm[0]) & ym2612.OPN.pan[0]);
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rt = ((out_fm[0]) & ym2612.OPN.pan[1]);
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lt += ((out_fm[1]) & ym2612.OPN.pan[2]);
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@ -2094,11 +2107,34 @@ void YM2612Update(int *buffer, int length)
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lt += ((out_fm[5]) & ym2612.OPN.pan[10]);
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rt += ((out_fm[5]) & ym2612.OPN.pan[11]);
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/* discrete YM2612 DAC */
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if (chip_type == YM2612_DISCRETE)
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{
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int i;
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/* DAC 'ladder effect' */
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for (i=0; i<6; i++)
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{
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if (out_fm[i] < 0)
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{
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/* -4 offset (-3 when not muted) on negative channel output (9-bit) */
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lt -= ((4 - (ym2612.OPN.pan[(2*i)+0] & 1)) << 5);
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rt -= ((4 - (ym2612.OPN.pan[(2*i)+1] & 1)) << 5);
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}
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else
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{
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/* +4 offset (when muted or not) on positive channel output (9-bit) */
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lt += (4 << 5);
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rt += (4 << 5);
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}
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}
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}
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/* buffering */
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*buffer++ = lt;
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*buffer++ = rt;
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/* CSM mode: if CSM Key ON has occured, CSM Key OFF need to be sent */
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/* CSM mode: if CSM Key ON has occurred, CSM Key OFF need to be sent */
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/* only if Timer A does not overflow again (i.e CSM Key ON not set again) */
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ym2612.OPN.SL3.key_csm <<= 1;
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@ -2121,20 +2157,51 @@ void YM2612Update(int *buffer, int length)
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INTERNAL_TIMER_B(length);
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}
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void YM2612Config(unsigned char dac_bits)
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void YM2612Config(int type)
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{
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int i;
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/* YM2612 chip type */
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chip_type = type;
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/* DAC precision (normally 9-bit on real hardware, implemented through simple 14-bit channel output bitmasking) */
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bitmask = ~((1 << (TL_BITS - dac_bits)) - 1);
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/* update L/R panning bitmasks */
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for (i=0; i<2*6; i++)
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/* carrier operator outputs bitmask */
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if (chip_type < YM2612_ENHANCED)
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{
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if (ym2612.OPN.pan[i])
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{
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ym2612.OPN.pan[i] = bitmask;
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}
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/* 9-bit DAC */
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op_mask[0][3] = 0xffffffe0;
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op_mask[1][3] = 0xffffffe0;
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op_mask[2][3] = 0xffffffe0;
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op_mask[3][3] = 0xffffffe0;
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op_mask[4][1] = 0xffffffe0;
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op_mask[4][3] = 0xffffffe0;
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op_mask[5][1] = 0xffffffe0;
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op_mask[5][2] = 0xffffffe0;
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op_mask[5][3] = 0xffffffe0;
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op_mask[6][1] = 0xffffffe0;
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op_mask[6][2] = 0xffffffe0;
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op_mask[6][3] = 0xffffffe0;
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op_mask[7][0] = 0xffffffe0;
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op_mask[7][1] = 0xffffffe0;
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op_mask[7][2] = 0xffffffe0;
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op_mask[7][3] = 0xffffffe0;
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}
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else
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{
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/* 14-bit DAC */
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op_mask[0][3] = 0xffffffff;
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op_mask[1][3] = 0xffffffff;
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op_mask[2][3] = 0xffffffff;
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op_mask[3][3] = 0xffffffff;
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op_mask[4][1] = 0xffffffff;
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op_mask[4][3] = 0xffffffff;
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op_mask[5][1] = 0xffffffff;
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op_mask[5][2] = 0xffffffff;
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op_mask[5][3] = 0xffffffff;
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op_mask[6][1] = 0xffffffff;
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op_mask[6][2] = 0xffffffff;
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op_mask[6][3] = 0xffffffff;
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op_mask[7][0] = 0xffffffff;
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op_mask[7][1] = 0xffffffff;
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op_mask[7][2] = 0xffffffff;
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op_mask[7][3] = 0xffffffff;
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}
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}
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@ -16,8 +16,14 @@
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#ifndef _H_YM2612_
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#define _H_YM2612_
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enum {
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YM2612_DISCRETE = 0,
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YM2612_INTEGRATED,
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YM2612_ENHANCED
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};
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extern void YM2612Init(void);
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extern void YM2612Config(unsigned char dac_bits);
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extern void YM2612Config(int type);
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extern void YM2612ResetChip(void);
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extern void YM2612Update(int *buffer, int length);
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extern void YM2612Write(unsigned int a, unsigned int v);
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@ -49,8 +49,8 @@ void set_config_defaults(void)
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config.lg = 100;
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config.mg = 100;
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config.hg = 100;
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config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
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config.dac_bits = 14;
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config.lp_range = 0x7fff; /* 0.5 in 0.16 fixed point */
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config.ym2612 = YM2612_DISCRETE;
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config.ym2413 = 1; /* = AUTO (0 = always OFF, 1 = always ON) */
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config.mono = 0;
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@ -21,7 +21,7 @@ typedef struct
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uint8 hq_fm;
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uint8 filter;
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uint8 hq_psg;
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uint8 dac_bits;
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uint8 ym2612;
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uint8 ym2413;
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int16 psg_preamp;
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int16 fm_preamp;
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@ -3,7 +3,7 @@
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*
|
||||
* Genesis Plus GX configuration file support
|
||||
*
|
||||
* Copyright Eke-Eke (2007-2016)
|
||||
* Copyright Eke-Eke (2007-2017)
|
||||
*
|
||||
* Redistribution and use of this code or any derivative works are permitted
|
||||
* provided that the following conditions are met:
|
||||
|
|
@ -103,13 +103,13 @@ void config_default(void)
|
|||
config.hq_fm = 1;
|
||||
config.hq_psg = 1;
|
||||
config.filter = 1;
|
||||
config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
|
||||
config.lp_range = 0x7FFF; /* 0.5 in 0.16 fixed point */
|
||||
config.low_freq = 880;
|
||||
config.high_freq = 5000;
|
||||
config.lg = 100;
|
||||
config.mg = 100;
|
||||
config.hg = 100;
|
||||
config.dac_bits = 14;
|
||||
config.ym2612 = YM2612_DISCRETE;
|
||||
config.ym2413 = 2; /* AUTO */
|
||||
config.mono = 0;
|
||||
|
||||
|
|
|
|||
|
|
@ -52,7 +52,7 @@ typedef struct
|
|||
uint8 hq_fm;
|
||||
uint8 filter;
|
||||
uint8 hq_psg;
|
||||
uint8 dac_bits;
|
||||
uint8 ym2612;
|
||||
uint8 ym2413;
|
||||
uint8 mono;
|
||||
int16 psg_preamp;
|
||||
|
|
|
|||
|
|
@ -343,20 +343,20 @@ static gui_item items_options[] =
|
|||
/* Audio options */
|
||||
static gui_item items_audio[] =
|
||||
{
|
||||
{NULL,NULL,"Master System FM: AUTO", "Enable/Disable YM2413 chip", 56,132,276,48},
|
||||
{NULL,NULL,"High-Quality FM: ON", "Enable/Disable YM2612/YM2413 high-quality resampling", 56,132,276,48},
|
||||
{NULL,NULL,"FM Resolution: MAX", "Adjust YM2612 DAC precision", 56,132,276,48},
|
||||
{NULL,NULL,"FM Volume: 1.00", "Adjust YM2612/YM2413 audio balance", 56,132,276,48},
|
||||
{NULL,NULL,"PSG Volume: 2.50", "Adjust SN76489 audio balance", 56,132,276,48},
|
||||
{NULL,NULL,"High-Quality PSG: ON", "Enable/Disable SN76489 high-quality resampling", 56,132,276,48},
|
||||
{NULL,NULL,"Audio Output: STEREO", "Select audio mixing output type", 56,132,276,48},
|
||||
{NULL,NULL,"Filtering: 3-BAND EQ", "Select audio filtering type", 56,132,276,48},
|
||||
{NULL,NULL,"Low Gain: 1.00", "Adjust EQ Low Band Gain", 56,132,276,48},
|
||||
{NULL,NULL,"Mid Gain: 1.00", "Adjust EQ Mid Band Gain", 56,132,276,48},
|
||||
{NULL,NULL,"High Gain: 1.00", "Adjust EQ High Band Gain", 56,132,276,48},
|
||||
{NULL,NULL,"Low Freq: 200 Hz", "Adjust EQ Lowest Frequency", 56,132,276,48},
|
||||
{NULL,NULL,"High Freq: 20000 Hz", "Adjust EQ Highest Frequency", 56,132,276,48}
|
||||
};
|
||||
{NULL,NULL,"Master System FM: AUTO", "Enable/Disable YM2413 chip", 56,132,276,48},
|
||||
{NULL,NULL,"YM2612 Type: DISCRETE", "Select YM2612 chip model", 56,132,276,48},
|
||||
{NULL,NULL,"High-Quality FM: ON", "Enable/Disable YM2612/YM2413 high-quality resampling", 56,132,276,48},
|
||||
{NULL,NULL,"High-Quality PSG: ON", "Enable/Disable SN76489 high-quality resampling", 56,132,276,48},
|
||||
{NULL,NULL,"FM Volume: 1.00", "Adjust YM2612/YM2413 audio balance", 56,132,276,48},
|
||||
{NULL,NULL,"PSG Volume: 2.50", "Adjust SN76489 audio balance", 56,132,276,48},
|
||||
{NULL,NULL,"Audio Output: STEREO", "Select audio mixing output type", 56,132,276,48},
|
||||
{NULL,NULL,"Filtering: 3-BAND EQ", "Select audio filtering type", 56,132,276,48},
|
||||
{NULL,NULL,"Low Gain: 1.00", "Adjust EQ Low Band Gain", 56,132,276,48},
|
||||
{NULL,NULL,"Mid Gain: 1.00", "Adjust EQ Mid Band Gain", 56,132,276,48},
|
||||
{NULL,NULL,"High Gain: 1.00", "Adjust EQ High Band Gain", 56,132,276,48},
|
||||
{NULL,NULL,"Low Freq: 200 Hz", "Adjust EQ Lowest Frequency", 56,132,276,48},
|
||||
{NULL,NULL,"High Freq: 20000 Hz", "Adjust EQ Highest Frequency", 56,132,276,48}
|
||||
};
|
||||
|
||||
/* System ROM paths */
|
||||
static gui_item items_rompaths[] =
|
||||
|
|
@ -901,14 +901,16 @@ static void soundmenu ()
|
|||
else if (config.ym2413 == 1) sprintf (items[0].text, "Master System FM: ON");
|
||||
else sprintf (items[0].text, "Master System FM: AUTO");
|
||||
|
||||
sprintf (items[1].text, "High-Quality FM: %s", config.hq_fm ? "ON":"OFF");
|
||||
if (config.ym2612 == YM2612_DISCRETE) sprintf (items[1].text, "YM2612 Type: DISCRETE");
|
||||
else if (config.ym2612 == YM2612_INTEGRATED) sprintf (items[1].text, "YM2612 Type: ASIC");
|
||||
else sprintf (items[1].text, "YM2612 Type: ENHANCED");
|
||||
|
||||
if (config.dac_bits < 14) sprintf (items[2].text, "FM Resolution: %d bits", config.dac_bits);
|
||||
else sprintf (items[2].text, "FM Resolution: MAX");
|
||||
sprintf (items[2].text, "High-Quality FM: %s", config.hq_fm ? "ON":"OFF");
|
||||
sprintf (items[3].text, "High-Quality PSG: %s", config.hq_psg? "ON":"OFF");
|
||||
|
||||
sprintf (items[4].text, "FM Volume: %1.2f", fm_volume);
|
||||
sprintf (items[5].text, "PSG Volume: %1.2f", psg_volume);
|
||||
|
||||
sprintf (items[3].text, "FM Volume: %1.2f", fm_volume);
|
||||
sprintf (items[4].text, "PSG Volume: %1.2f", psg_volume);
|
||||
sprintf (items[5].text, "High-Quality PSG: %s", config.hq_psg? "ON":"OFF");
|
||||
sprintf (items[6].text, "Audio Output: %s", config.mono ? "MONO":"STEREO");
|
||||
|
||||
if (config.filter == 2)
|
||||
|
|
@ -971,33 +973,41 @@ static void soundmenu ()
|
|||
|
||||
case 1:
|
||||
{
|
||||
config.hq_fm ^= 1;
|
||||
sprintf (items[1].text, "High-Quality FM: %s", config.hq_fm ? "ON":"OFF");
|
||||
config.ym2612++;
|
||||
if (config.ym2612 > YM2612_ENHANCED) config.ym2612 = YM2612_DISCRETE;
|
||||
if (config.ym2612 == YM2612_DISCRETE) sprintf (items[1].text, "YM2612 Type: DISCRETE");
|
||||
else if (config.ym2612 == YM2612_INTEGRATED) sprintf (items[1].text, "YM2612 Type: ASIC");
|
||||
else sprintf (items[1].text, "YM2612 Type: ENHANCED");
|
||||
YM2612Config(config.ym2612);
|
||||
break;
|
||||
}
|
||||
|
||||
case 2:
|
||||
{
|
||||
config.dac_bits++;
|
||||
if (config.dac_bits > 14) config.dac_bits = 7;
|
||||
if (config.dac_bits < 14) sprintf (items[2].text, "FM Resolution: %d bits", config.dac_bits);
|
||||
else sprintf (items[2].text, "FM Resolution: MAX");
|
||||
YM2612Config(config.dac_bits);
|
||||
config.hq_fm ^= 1;
|
||||
sprintf (items[2].text, "High-Quality FM: %s", config.hq_fm ? "ON":"OFF");
|
||||
break;
|
||||
}
|
||||
|
||||
case 3:
|
||||
{
|
||||
GUI_OptionBox(m,0,"FM Volume",(void *)&fm_volume,0.01,0.0,5.0,0);
|
||||
sprintf (items[3].text, "FM Volume: %1.2f", fm_volume);
|
||||
config.fm_preamp = (int)(fm_volume * 100.0 + 0.5);
|
||||
config.hq_psg ^= 1;
|
||||
sprintf (items[3].text, "High-Quality PSG: %s", config.hq_psg ? "ON":"OFF");
|
||||
break;
|
||||
}
|
||||
|
||||
case 4:
|
||||
{
|
||||
GUI_OptionBox(m,0,"FM Volume",(void *)&fm_volume,0.01,0.0,5.0,0);
|
||||
sprintf (items[4].text, "FM Volume: %1.2f", fm_volume);
|
||||
config.fm_preamp = (int)(fm_volume * 100.0 + 0.5);
|
||||
break;
|
||||
}
|
||||
|
||||
case 5:
|
||||
{
|
||||
GUI_OptionBox(m,0,"PSG Volume",(void *)&psg_volume,0.01,0.0,5.0,0);
|
||||
sprintf (items[4].text, "PSG Volume: %1.2f", psg_volume);
|
||||
sprintf (items[5].text, "PSG Volume: %1.2f", psg_volume);
|
||||
config.psg_preamp = (int)(psg_volume * 100.0 + 0.5);
|
||||
if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
|
||||
{
|
||||
|
|
@ -1010,13 +1020,6 @@ static void soundmenu ()
|
|||
break;
|
||||
}
|
||||
|
||||
case 5:
|
||||
{
|
||||
config.hq_psg ^= 1;
|
||||
sprintf (items[5].text, "High-Quality PSG: %s", config.hq_psg ? "ON":"OFF");
|
||||
break;
|
||||
}
|
||||
|
||||
case 6:
|
||||
{
|
||||
config.mono ^= 1;
|
||||
|
|
|
|||
|
|
@ -533,15 +533,18 @@ static void config_default(void)
|
|||
config.hq_fm = 1; /* high-quality FM resampling (slower) */
|
||||
config.hq_psg = 1; /* high-quality PSG resampling (slower) */
|
||||
config.filter = 0; /* no filter */
|
||||
config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
|
||||
config.lp_range = 0x7fff; /* 0.5 in 0.16 fixed point */
|
||||
config.low_freq = 880;
|
||||
config.high_freq = 5000;
|
||||
config.lg = 100;
|
||||
config.mg = 100;
|
||||
config.hg = 100;
|
||||
config.dac_bits = 14; /* MAX DEPTH */
|
||||
config.ym2612 = YM2612_DISCRETE;
|
||||
config.ym2413 = 2; /* AUTO */
|
||||
config.mono = 0; /* STEREO output */
|
||||
#ifdef HAVE_YM3438_CORE
|
||||
config.ym3438 = 0;
|
||||
#endif
|
||||
|
||||
/* system options */
|
||||
config.system = 0; /* AUTO */
|
||||
|
|
@ -1104,10 +1107,10 @@ static void check_variables(void)
|
|||
if (!strcmp(var.value, "low-pass"))
|
||||
config.filter = 1;
|
||||
|
||||
#if HAVE_EQ
|
||||
#if HAVE_EQ
|
||||
else if (!strcmp(var.value, "EQ"))
|
||||
config.filter = 2;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
else
|
||||
config.filter = 0;
|
||||
|
|
@ -1117,9 +1120,9 @@ static void check_variables(void)
|
|||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
{
|
||||
config.lp_range = (atoi(var.value) * 65536) / 100;
|
||||
}
|
||||
|
||||
#if HAVE_EQ
|
||||
}
|
||||
|
||||
#if HAVE_EQ
|
||||
var.key = "genesis_plus_gx_audio_eq_low";
|
||||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
{
|
||||
|
|
@ -1127,7 +1130,7 @@ static void check_variables(void)
|
|||
if (new_lg != config.lg) restart_eq = true;
|
||||
config.lg = new_lg;
|
||||
}
|
||||
|
||||
|
||||
var.key = "genesis_plus_gx_audio_eq_mid";
|
||||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
{
|
||||
|
|
@ -1135,7 +1138,7 @@ static void check_variables(void)
|
|||
if (new_mg != config.mg) restart_eq = true;
|
||||
config.mg = new_mg;
|
||||
}
|
||||
|
||||
|
||||
var.key = "genesis_plus_gx_audio_eq_high";
|
||||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
{
|
||||
|
|
@ -1144,23 +1147,12 @@ static void check_variables(void)
|
|||
config.hg = new_hg;
|
||||
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
var.key = "genesis_plus_gx_dac_bits";
|
||||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
{
|
||||
if (!strcmp(var.value, "enabled"))
|
||||
config.dac_bits = 9;
|
||||
else
|
||||
config.dac_bits = 14;
|
||||
|
||||
YM2612Config(config.dac_bits);
|
||||
}
|
||||
|
||||
#ifdef HAVE_YM3438_CORE
|
||||
var.key = "genesis_plus_gx_ym3438";
|
||||
var.key = "genesis_plus_gx_ym2612";
|
||||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
{
|
||||
#ifdef HAVE_YM3438_CORE
|
||||
orig_value = config.ym3438;
|
||||
if (!strcmp(var.value, "nuked (ym2612)"))
|
||||
{
|
||||
|
|
@ -1178,15 +1170,33 @@ static void check_variables(void)
|
|||
config.ym3438 = 3;
|
||||
}
|
||||
else
|
||||
{
|
||||
config.ym3438 = 0;
|
||||
}
|
||||
|
||||
if (orig_value == 0 && config.ym3438 > 0 || orig_value > 0 && config.ym3438 == 0)
|
||||
if (((orig_value == 0) && (config.ym3438 > 0)) || ((orig_value > 0) && (config.ym3438 == 0)))
|
||||
{
|
||||
sound_init();
|
||||
sound_reset();
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!strcmp(var.value, "mame (ym2612)"))
|
||||
{
|
||||
config.ym2612 = YM2612_DISCRETE;
|
||||
YM2612Config(YM2612_DISCRETE);
|
||||
}
|
||||
else if (!strcmp(var.value, "mame (asic ym3438)"))
|
||||
{
|
||||
config.ym2612 = YM2612_INTEGRATED;
|
||||
YM2612Config(YM2612_INTEGRATED);
|
||||
}
|
||||
else
|
||||
{
|
||||
config.ym2612 = YM2612_ENHANCED;
|
||||
YM2612Config(YM2612_ENHANCED);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
var.key = "genesis_plus_gx_blargg_ntsc_filter";
|
||||
environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var);
|
||||
|
|
@ -1754,11 +1764,12 @@ void retro_set_environment(retro_environment_t cb)
|
|||
{ "genesis_plus_gx_bram", "CD System BRAM; per bios|per game" },
|
||||
{ "genesis_plus_gx_addr_error", "68k address error; enabled|disabled" },
|
||||
{ "genesis_plus_gx_lock_on", "Cartridge lock-on; disabled|game genie|action replay (pro)|sonic & knuckles" },
|
||||
{ "genesis_plus_gx_ym2413", "Master System FM; auto|disabled|enabled" },
|
||||
{ "genesis_plus_gx_dac_bits", "YM2612 DAC quantization; disabled|enabled" },
|
||||
#ifdef HAVE_YM3438_CORE
|
||||
{ "genesis_plus_gx_ym3438", "YM2612/YM3438 core; mame|nuked (ym2612)|nuked (asic ym3438)|nuked (discrete ym3438)" },
|
||||
#endif
|
||||
{ "genesis_plus_gx_ym2413", "Master System FM (YM2413); auto|disabled|enabled" },
|
||||
#ifdef HAVE_YM3438_CORE
|
||||
{ "genesis_plus_gx_ym2612", "Mega Drive / Genesis FM; mame (ym2612)|mame (asic ym3438)|mame (enhanced ym3438)|nuked (ym2612)|nuked (asic ym3438)|nuked (discrete ym3438)" },
|
||||
#else
|
||||
{ "genesis_plus_gx_ym2612", "Mega Drive / Genesis FM; mame (ym2612)|mame (asic ym3438)|mame (enhanced ym3438)" },
|
||||
#endif
|
||||
|
||||
{ "genesis_plus_gx_sound_output", "Sound output; stereo|mono" },
|
||||
{ "genesis_plus_gx_audio_filter", "Audio filter; disabled|low-pass" },
|
||||
|
|
|
|||
|
|
@ -94,7 +94,7 @@ struct
|
|||
uint8 hq_fm;
|
||||
uint8 filter;
|
||||
uint8 hq_psg;
|
||||
uint8 dac_bits;
|
||||
uint8 ym2612;
|
||||
uint8 ym2413;
|
||||
#ifdef HAVE_YM3438_CORE
|
||||
uint8 ym3438;
|
||||
|
|
|
|||
|
|
@ -18,8 +18,8 @@ void set_config_defaults(void)
|
|||
config.lg = 100;
|
||||
config.mg = 100;
|
||||
config.hg = 100;
|
||||
config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
|
||||
config.dac_bits = 14;
|
||||
config.lp_range = 0x7fff; /* 0.5 in 0.16 fixed point */
|
||||
config.ym2612 = YM2612_DISCRETE;
|
||||
config.ym2413 = 2; /* = AUTO (0 = always OFF, 1 = always ON) */
|
||||
config.mono = 0;
|
||||
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ typedef struct
|
|||
uint8 hq_fm;
|
||||
uint8 filter;
|
||||
uint8 hq_psg;
|
||||
uint8 dac_bits;
|
||||
uint8 ym2612;
|
||||
uint8 ym2413;
|
||||
int16 psg_preamp;
|
||||
int16 fm_preamp;
|
||||
|
|
|
|||
|
|
@ -19,8 +19,8 @@ void set_config_defaults(void)
|
|||
config.lg = 100;
|
||||
config.mg = 100;
|
||||
config.hg = 100;
|
||||
config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
|
||||
config.dac_bits = 14;
|
||||
config.lp_range = 0x7fff; /* 0.6 in 0.16 fixed point */
|
||||
config.ym2612 = YM2612_DISCRETE;
|
||||
config.ym2413 = 2; /* = AUTO (0 = always OFF, 1 = always ON) */
|
||||
config.ym3438 = 0;
|
||||
config.mono = 0;
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@ typedef struct
|
|||
uint8 hq_fm;
|
||||
uint8 filter;
|
||||
uint8 hq_psg;
|
||||
uint8 dac_bits;
|
||||
uint8 ym2612;
|
||||
uint8 ym2413;
|
||||
uint8 ym3438;
|
||||
int16 psg_preamp;
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user