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I don't understand how am I going to do this

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this code looks too glued to Blip_Buffer
This commit is contained in:
tildearrow 2022-10-09 04:05:44 -05:00
parent 9ff4d89c49
commit 9ea72a321f
2 changed files with 0 additions and 75 deletions
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70
src/engine/platform/sound/t6w28/T6W28_Apu.cpp
View file

@ -228,18 +228,6 @@ T6W28_Apu::~T6W28_Apu()
{
}
void T6W28_Apu::volume( double vol )
{
vol *= 0.85 / (osc_count * 64 * 2);
square_synth.volume( vol );
noise.synth.volume( vol );
}
void T6W28_Apu::treble_eq( const blip_eq_t& eq )
{
square_synth.treble_eq( eq );
noise.synth.treble_eq( eq );
}
void T6W28_Apu::osc_output( int index, Blip_Buffer* center, Blip_Buffer* left, Blip_Buffer* right )
{
@ -370,62 +358,4 @@ void T6W28_Apu::write_data_right( sms_time_t time, int data )
}
}
void T6W28_Apu::save_state(T6W28_ApuState *ret)
{
for(int x = 0; x < 4; x++)
{
ret->delay[x] = oscs[x]->delay;
ret->volume_left[x] = oscs[x]->volume_left;
ret->volume_right[x] = oscs[x]->volume_right;
}
for(int x = 0; x < 3; x++)
{
ret->sq_period[x] = squares[x].period;
ret->sq_phase[x] = squares[x].phase;
}
ret->noise_shifter = noise.shifter;
ret->noise_tap = noise.tap;
ret->noise_period_extra = noise.period_extra;
if(noise.period == &noise_periods[0])
ret->noise_period = 0;
else if(noise.period == &noise_periods[1])
ret->noise_period = 1;
else if(noise.period == &noise_periods[2])
ret->noise_period = 2;
else ret->noise_period = 3;
ret->latch_left = latch_left;
ret->latch_right = latch_right;
}
void T6W28_Apu::load_state(const T6W28_ApuState *state)
{
for(int x = 0; x < 4; x++)
{
oscs[x]->delay = state->delay[x] & ((x == 3) ? 0x7FFF : 0x3FFF);
oscs[x]->volume_left = state->volume_left[x];
oscs[x]->volume_right = state->volume_right[x];
}
for(int x = 0; x < 3; x++)
{
squares[x].period = state->sq_period[x] & 0x3FFF;
squares[x].phase = state->sq_phase[x];
}
noise.shifter = state->noise_shifter;
noise.tap = state->noise_tap;
noise.period_extra = state->noise_period_extra & 0x3FFF;
unsigned select = state->noise_period;
if ( select < 3 )
noise.period = &noise_periods [select];
else
noise.period = &noise.period_extra;
latch_left = state->latch_left;
latch_right = state->latch_right;
}
}

5
src/engine/platform/sound/t6w28/T6W28_Apu.h
View file

@ -32,11 +32,6 @@ typedef struct
class T6W28_Apu {
public:
// Set overall volume of all oscillators, where 1.0 is full volume
void volume( double );
// Set treble equalization
void treble_eq( const blip_eq_t& );
// Outputs can be assigned to a single buffer for mono output, or to three
// buffers for stereo output (using Stereo_Buffer to do the mixing).