22 lines
492 B
C++
22 lines
492 B
C++
#include <psemek/audio/wave/sawtooth.hpp>
|
|
#include <psemek/audio/wave/generator.hpp>
|
|
#include <psemek/audio/oscillator.hpp>
|
|
#include <psemek/util/to_shared.hpp>
|
|
#include <psemek/log/log.hpp>
|
|
|
|
#include <cmath>
|
|
|
|
namespace psemek::audio
|
|
{
|
|
|
|
stream_ptr sawtooth_wave(float frequency)
|
|
{
|
|
auto func = [o = oscillator{frequency}]() mutable {
|
|
auto z = o.next();
|
|
return (2.f / geom::pi) * (- std::atan2(z.real() + 1.f, z.imag()));
|
|
};
|
|
|
|
return util::to_shared(generator_stream(func));
|
|
}
|
|
|
|
}
|