63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#include <Gamma/scl.h>
|
|
|
|
#include "Senior.hpp"
|
|
|
|
namespace Ottobit
|
|
{
|
|
void Senior::operator()(tick t)
|
|
{
|
|
// Only compute bit_factor when the control changes
|
|
if (inputs.bits != previous_bits)
|
|
{
|
|
set_bit_factor();
|
|
previous_bits = inputs.bits;
|
|
}
|
|
|
|
// Only compute skipped_frames when the control changes
|
|
if (inputs.rate != previous_rate)
|
|
{
|
|
step_size = (1. - inputs.rate) * RATE;
|
|
previous_rate = inputs.rate;
|
|
}
|
|
|
|
// Process the input buffer
|
|
for(int i{0}; i < inputs.audio.channels; i++)
|
|
{
|
|
auto* in = inputs.audio[i];
|
|
auto* out = outputs.audio[i % outputs.audio.channels];
|
|
|
|
// Init current_frame for each channel
|
|
double current_frame{crush_frame(in[i])};
|
|
|
|
for(int j{0}; j < t.frames; j++)
|
|
{
|
|
if (skipped_frames[i] <= step_size)
|
|
skipped_frames[i]++;
|
|
else
|
|
{
|
|
skipped_frames[i] = 0;
|
|
current_frame = crush_frame(in[j]);
|
|
}
|
|
|
|
fms[i].delay(lfos[i].cos()*0.0025 + 0.05);
|
|
out[j] = fms[i](current_frame);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Senior::set_bit_factor()
|
|
{
|
|
bit_factor = pow(2, inputs.bits) - 1;
|
|
}
|
|
|
|
double Senior::crush_frame(const double& f)
|
|
{
|
|
if (inputs.bits == BITS)
|
|
return f;
|
|
else
|
|
// Rounding using static_cast
|
|
// return static_cast<double>(static_cast<int>(f * bit_factor)) / bit_factor;
|
|
// Close, but prefer the use of roundMagic from Lance Putnam's Gama
|
|
return gam::scl::round<double>(f * bit_factor) / bit_factor;
|
|
}
|
|
}
|