brickworks/examples/fxpp_balance/src/impl.cpp

67 lines
1.7 KiB
C++

#include "impl.h"
#include "common.h"
#include <bw_balance.h>
#include <bw_ppm.h>
using namespace Brickworks;
class Engine {
public:
Balance<1> balance;
PPM<2> ppm;
};
extern "C" {
impl impl_new(void) {
return reinterpret_cast<impl>(new Engine());
}
void impl_free(impl handle) {
Engine *instance = reinterpret_cast<Engine *>(handle);
delete instance;
}
void impl_set_sample_rate(impl handle, float sample_rate) {
Engine *instance = reinterpret_cast<Engine *>(handle);
instance->balance.setSampleRate(sample_rate);
instance->ppm.setSampleRate(sample_rate);
}
void impl_reset(impl handle) {
Engine *instance = reinterpret_cast<Engine *>(handle);
instance->balance.reset();
instance->ppm.reset();
}
void impl_set_parameter(impl handle, size_t index, float value) {
(void)index;
Engine *instance = reinterpret_cast<Engine *>(handle);
instance->balance.setBalance(0.01f * value);
}
float impl_get_parameter(impl handle, size_t index) {
Engine *instance = reinterpret_cast<Engine *>(handle);
float v = instance->ppm.getYZ1(index - 1);
return v < -60.f ? -60.f : (v > 0.f ? 0.f : v);
}
void impl_process(impl handle, const float **inputs, float **outputs, size_t n_samples) {
Engine *instance = reinterpret_cast<Engine *>(handle);
#ifdef WASM
const float *xL[1] = {inputs[0]};
const float *xR[1] = {inputs[1]};
float *yL[1] = {outputs[0]};
float *yR[1] = {outputs[1]};
instance->balance.process(xL, xR, yL, yR, n_samples);
instance->ppm.process(outputs, nullptr, n_samples);
#else
instance->balance.process({inputs[0]}, {inputs[1]}, {outputs[0]}, {outputs[1]}, n_samples);
instance->ppm.process({outputs[0], outputs[1]}, {nullptr, nullptr}, n_samples);
#endif
}
}