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-rw-r--r--sound/softsynth/opl/dbopl.cpp90
-rw-r--r--sound/softsynth/opl/dbopl.h6
2 files changed, 63 insertions, 33 deletions
diff --git a/sound/softsynth/opl/dbopl.cpp b/sound/softsynth/opl/dbopl.cpp
index 1170469ecd..fffa33fe60 100644
--- a/sound/softsynth/opl/dbopl.cpp
+++ b/sound/softsynth/opl/dbopl.cpp
@@ -103,8 +103,8 @@ namespace DBOPL {
//How much to substract from the base value for the final attenuation
static const Bit8u KslCreateTable[16] = {
//0 will always be be lower than 7 * 8
- 64, 32, 24, 19,
- 16, 12, 11, 10,
+ 64, 32, 24, 19,
+ 16, 12, 11, 10,
8, 6, 5, 4,
3, 2, 1, 0,
};
@@ -128,7 +128,7 @@ static const Bit8u EnvelopeIncreaseTable[13] = {
4, 5, 6, 7,
8, 10, 12, 14,
16, 20, 24, 28,
- 32,
+ 32,
};
#if ( DBOPL_WAVE == WAVE_HANDLER ) || ( DBOPL_WAVE == WAVE_TABLELOG )
@@ -184,9 +184,9 @@ static Bit16u OpOffsetTable[64];
//The lower bits are the shift of the operator vibrato value
//The highest bit is right shifted to generate -1 or 0 for negation
//So taking the highest input value of 7 this gives 3, 7, 3, 0, -3, -7, -3, 0
-static const Bit8s VibratoTable[ 8 ] = {
- 1 - 0x00, 0 - 0x00, 1 - 0x00, 30 - 0x00,
- 1 - 0x80, 0 - 0x80, 1 - 0x80, 30 - 0x80
+static const Bit8s VibratoTable[ 8 ] = {
+ 1 - 0x00, 0 - 0x00, 1 - 0x00, 30 - 0x00,
+ 1 - 0x80, 0 - 0x80, 1 - 0x80, 30 - 0x80
};
//Shift strength for the ksl value determined by ksl strength
@@ -315,13 +315,13 @@ inline void Operator::UpdateRelease( const Chip* chip ) {
rateZero &= ~(1 << RELEASE);
if ( !(reg20 & MASK_SUSTAIN ) ) {
rateZero &= ~( 1 << SUSTAIN );
- }
+ }
} else {
rateZero |= (1 << RELEASE);
releaseAdd = 0;
if ( !(reg20 & MASK_SUSTAIN ) ) {
rateZero |= ( 1 << SUSTAIN );
- }
+ }
}
}
@@ -417,7 +417,7 @@ Bits Operator::TemplateVolume( ) {
return vol;
}
//In sustain phase, but not sustaining, do regular release
- case RELEASE:
+ case RELEASE:
vol += RateForward( releaseAdd );;
if ( GCC_UNLIKELY(vol >= ENV_MAX) ) {
volume = ENV_MAX;
@@ -444,13 +444,13 @@ INLINE Bitu Operator::ForwardVolume() {
INLINE Bitu Operator::ForwardWave() {
- waveIndex += waveCurrent;
+ waveIndex += waveCurrent;
return waveIndex >> WAVE_SH;
}
void Operator::Write20( const Chip* chip, Bit8u val ) {
Bit8u change = (reg20 ^ val );
- if ( !change )
+ if ( !change )
return;
reg20 = val;
//Shift the tremolo bit over the entire register, saved a branch, YES!
@@ -474,7 +474,7 @@ void Operator::Write20( const Chip* chip, Bit8u val ) {
}
void Operator::Write40( const Chip* /*chip*/, Bit8u val ) {
- if (!(reg40 ^ val ))
+ if (!(reg40 ^ val ))
return;
reg40 = val;
UpdateAttenuation( );
@@ -493,7 +493,7 @@ void Operator::Write60( const Chip* chip, Bit8u val ) {
void Operator::Write80( const Chip* chip, Bit8u val ) {
Bit8u change = (reg80 ^ val );
- if ( !change )
+ if ( !change )
return;
reg80 = val;
Bit8u sustain = val >> 4;
@@ -506,7 +506,7 @@ void Operator::Write80( const Chip* chip, Bit8u val ) {
}
void Operator::WriteE0( const Chip* chip, Bit8u val ) {
- if ( !(regE0 ^ val) )
+ if ( !(regE0 ^ val) )
return;
//in opl3 mode you can always selet 7 waveforms regardless of waveformselect
Bit8u waveForm = val & ( ( 0x3 & chip->waveFormMask ) | (0x7 & chip->opl3Active ) );
@@ -541,7 +541,7 @@ INLINE void Operator::Prepare( const Chip* chip ) {
//Sign extend over the shift value
Bit32s neg = chip->vibratoSign;
//Negate the add with -1 or 0
- add = ( add ^ neg ) - neg;
+ add = ( add ^ neg ) - neg;
waveCurrent += add;
}
}
@@ -769,7 +769,7 @@ void Channel::WriteC0( const Chip* chip, Bit8u val ) {
maskLeft = ( val & 0x10 ) ? -1 : 0;
maskRight = ( val & 0x20 ) ? -1 : 0;
//opl2 active
- } else {
+ } else {
//Disable updating percussion channels
if ( (fourMask & 0x40) && ( chip->regBD & 0x20 ) ) {
@@ -795,7 +795,7 @@ INLINE void Channel::GeneratePercussion( Chip* chip, Bit32s* output ) {
//BassDrum
Bit32s mod = (Bit32u)((old[0] + old[1])) >> feedback;
old[0] = old[1];
- old[1] = Op(0)->GetSample( mod );
+ old[1] = Op(0)->GetSample( mod );
//When bassdrum is in AM mode first operator is ignoed
if ( chan->regC0 & 1 ) {
@@ -803,7 +803,7 @@ INLINE void Channel::GeneratePercussion( Chip* chip, Bit32s* output ) {
} else {
mod = old[0];
}
- Bit32s sample = Op(1)->GetSample( mod );
+ Bit32s sample = Op(1)->GetSample( mod );
//Precalculate stuff used by other outputs
@@ -893,6 +893,16 @@ Channel* Channel::BlockTemplate( Chip* chip, Bit32u samples, Bit32s* output ) {
// thus we leave this blank.
// TODO: Consider checking this.
break;
+ case sm4Start:
+ // This case was not handled in the DOSBox code either
+ // thus we leave this blank.
+ // TODO: Consider checking this.
+ break;
+ case sm6Start:
+ // This case was not handled in the DOSBox code either
+ // thus we leave this blank.
+ // TODO: Consider checking this.
+ break;
}
//Init the operators with the the current vibrato and tremolo values
Op( 0 )->Prepare( chip );
@@ -926,12 +936,12 @@ Channel* Channel::BlockTemplate( Chip* chip, Bit32u samples, Bit32s* output ) {
} else if ( mode == sm2FM || mode == sm3FM ) {
sample = Op(1)->GetSample( out0 );
} else if ( mode == sm3FMFM ) {
- Bits next = Op(1)->GetSample( out0 );
+ Bits next = Op(1)->GetSample( out0 );
next = Op(2)->GetSample( next );
sample = Op(3)->GetSample( next );
} else if ( mode == sm3AMFM ) {
sample = out0;
- Bits next = Op(1)->GetSample( 0 );
+ Bits next = Op(1)->GetSample( 0 );
next = Op(2)->GetSample( next );
sample += Op(3)->GetSample( next );
} else if ( mode == sm3FMAM ) {
@@ -940,7 +950,7 @@ Channel* Channel::BlockTemplate( Chip* chip, Bit32u samples, Bit32s* output ) {
sample += Op(3)->GetSample( next );
} else if ( mode == sm3AMAM ) {
sample = out0;
- Bits next = Op(1)->GetSample( 0 );
+ Bits next = Op(1)->GetSample( 0 );
sample += Op(2)->GetSample( next );
sample += Op(3)->GetSample( 0 );
}
@@ -968,6 +978,16 @@ Channel* Channel::BlockTemplate( Chip* chip, Bit32u samples, Bit32s* output ) {
// thus we leave this blank.
// TODO: Consider checking this.
break;
+ case sm4Start:
+ // This case was not handled in the DOSBox code either
+ // thus we leave this blank.
+ // TODO: Consider checking this.
+ break;
+ case sm6Start:
+ // This case was not handled in the DOSBox code either
+ // thus we leave this blank.
+ // TODO: Consider checking this.
+ break;
}
}
switch( mode ) {
@@ -984,6 +1004,16 @@ Channel* Channel::BlockTemplate( Chip* chip, Bit32u samples, Bit32s* output ) {
case sm2Percussion:
case sm3Percussion:
return( this + 3 );
+ case sm4Start:
+ // This case was not handled in the DOSBox code either
+ // thus we leave this blank.
+ // TODO: Consider checking this.
+ break;
+ case sm6Start:
+ // This case was not handled in the DOSBox code either
+ // thus we leave this blank.
+ // TODO: Consider checking this.
+ break;
}
return 0;
}
@@ -1015,7 +1045,7 @@ INLINE Bit32u Chip::ForwardNoise() {
INLINE Bit32u Chip::ForwardLFO( Bit32u samples ) {
//Current vibrato value, runs 4x slower than tremolo
vibratoSign = ( VibratoTable[ vibratoIndex >> 2] ) >> 7;
- vibratoShift = ( VibratoTable[ vibratoIndex >> 2] & 7) + vibratoStrength;
+ vibratoShift = ( VibratoTable[ vibratoIndex >> 2] & 7) + vibratoStrength;
tremoloValue = TremoloTable[ tremoloIndex ] >> tremoloStrength;
//Check hom many samples there can be done before the value changes
@@ -1051,9 +1081,9 @@ void Chip::WriteBD( Bit8u val ) {
//Drum was just enabled, make sure channel 6 has the right synth
if ( change & 0x20 ) {
if ( opl3Active ) {
- chan[6].synthHandler = &Channel::BlockTemplate< sm3Percussion >;
+ chan[6].synthHandler = &Channel::BlockTemplate< sm3Percussion >;
} else {
- chan[6].synthHandler = &Channel::BlockTemplate< sm2Percussion >;
+ chan[6].synthHandler = &Channel::BlockTemplate< sm2Percussion >;
}
}
//Bass Drum
@@ -1121,7 +1151,7 @@ void Chip::WriteReg( Bit32u reg, Bit8u val ) {
switch ( (reg & 0xf0) >> 4 ) {
case 0x00 >> 4:
if ( reg == 0x01 ) {
- waveFormMask = ( val & 0x20 ) ? 0x7 : 0x0;
+ waveFormMask = ( val & 0x20 ) ? 0x7 : 0x0;
} else if ( reg == 0x104 ) {
//Only detect changes in lowest 6 bits
if ( !((reg104 ^ val) & 0x3f) )
@@ -1187,7 +1217,7 @@ Bit32u Chip::WriteAddr( Bit32u port, Bit8u val ) {
case 2:
if ( opl3Active || (val == 0x05) )
return 0x100 | val;
- else
+ else
return val;
}
return 0;
@@ -1261,7 +1291,7 @@ void Chip::Setup( Bit32u rate ) {
EnvelopeSelect( i, index, shift );
//Original amount of samples the attack would take
Bit32s original = (Bit32u)( (AttackSamplesTable[ index ] << shift) / scale);
-
+
Bit32s guessAdd = (Bit32u)( scale * (EnvelopeIncreaseTable[ index ] << ( RATE_SH - shift - 3 )));
Bit32s bestAdd = guessAdd;
Bit32u bestDiff = 1 << 30;
@@ -1273,7 +1303,7 @@ void Chip::Setup( Bit32u rate ) {
count += guessAdd;
Bit32s change = count >> RATE_SH;
count &= RATE_MASK;
- if ( GCC_UNLIKELY(change) ) { // less than 1 %
+ if ( GCC_UNLIKELY(change) ) { // less than 1 %
volume += ( ~volume * change ) >> 3;
}
samples++;
@@ -1395,7 +1425,7 @@ void InitTables( void ) {
for ( int i = 0; i < 256; i++ ) {
WaveTable[ 0x700 + i ] = i * 8;
WaveTable[ 0x6ff - i ] = ((Bit16s)0x8000) | i * 8;
- }
+ }
#endif
// | |//\\|____|WAV7|//__|/\ |____|/\/\|
@@ -1417,7 +1447,7 @@ void InitTables( void ) {
WaveTable[ 0xb00 + i ] = WaveTable[ 0x000 + i * 2 ];
WaveTable[ 0xe00 + i ] = WaveTable[ 0x200 + i * 2 ];
WaveTable[ 0xf00 + i ] = WaveTable[ 0x200 + i * 2 ];
- }
+ }
#endif
//Create the ksl table
diff --git a/sound/softsynth/opl/dbopl.h b/sound/softsynth/opl/dbopl.h
index a9534a1de7..87d1045fab 100644
--- a/sound/softsynth/opl/dbopl.h
+++ b/sound/softsynth/opl/dbopl.h
@@ -112,7 +112,7 @@ public:
VolumeHandler volHandler;
#if (DBOPL_WAVE == WAVE_HANDLER)
- WaveHandler waveHandler; //Routine that generate a wave
+ WaveHandler waveHandler; //Routine that generate a wave
#else
Bit16s* waveBase;
Bit32u waveMask;
@@ -129,7 +129,7 @@ public:
Bit32s totalLevel; //totalLevel is added to every generated volume
Bit32u currentLevel; //totalLevel + tremolo
Bit32s volume; //The currently active volume
-
+
Bit32u attackAdd; //Timers for the different states of the envelope
Bit32u decayAdd;
Bit32u releaseAdd;
@@ -222,7 +222,7 @@ struct Chip {
//This is used as the base counter for vibrato and tremolo
Bit32u lfoCounter;
Bit32u lfoAdd;
-
+
Bit32u noiseCounter;
Bit32u noiseAdd;
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 02:29:04 +0000