107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/*
|
|
* Brickworks
|
|
*
|
|
* Copyright (C) 2022-2024 Orastron Srl unipersonale
|
|
*
|
|
* Brickworks is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, version 3 of the License.
|
|
*
|
|
* Brickworks is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Brickworks. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* File author: Stefano D'Angelo
|
|
*/
|
|
|
|
#include "impl.h"
|
|
|
|
#include "common.h"
|
|
#include <bw_satur.h>
|
|
#include <bw_src_int.h>
|
|
|
|
using namespace Brickworks;
|
|
|
|
#define BUF_SIZE 32
|
|
|
|
class Engine {
|
|
public:
|
|
Engine() : srcUp(2), srcDown(-2) {}
|
|
|
|
Satur<1> satur;
|
|
SRCInt<1> srcUp;
|
|
SRCInt<1> srcDown;
|
|
|
|
float buf[BUF_SIZE];
|
|
};
|
|
|
|
extern "C" {
|
|
|
|
impl impl_new(void) {
|
|
Engine *instance = new Engine();
|
|
instance->satur.setGainCompensation(true);
|
|
return reinterpret_cast<impl>(instance);
|
|
}
|
|
|
|
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->satur.setSampleRate(2.f * sample_rate);
|
|
}
|
|
|
|
void impl_reset(impl handle) {
|
|
Engine *instance = reinterpret_cast<Engine *>(handle);
|
|
instance->satur.reset();
|
|
instance->srcUp.reset();
|
|
instance->srcDown.reset();
|
|
}
|
|
|
|
void impl_set_parameter(impl handle, size_t index, float value) {
|
|
Engine *instance = reinterpret_cast<Engine *>(handle);
|
|
switch (index) {
|
|
case 0:
|
|
instance->satur.setGain(value);
|
|
break;
|
|
case 1:
|
|
instance->satur.setBias(value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
float impl_get_parameter(impl handle, size_t index) {
|
|
(void)handle;
|
|
(void)index;
|
|
return 0.f;
|
|
}
|
|
|
|
void impl_process(impl handle, const float **inputs, float **outputs, size_t n_samples) {
|
|
Engine *instance = reinterpret_cast<Engine *>(handle);
|
|
size_t i = 0;
|
|
while (i < n_samples) {
|
|
int n = bw_mini32(n_samples - i, BUF_SIZE >> 1);
|
|
#ifdef WASM
|
|
const float *x[1] = {inputs[0] + i};
|
|
float *y[1] = {outputs[0] + i};
|
|
float *b[1] = {instance->buf};
|
|
instance->srcUp.process(x, b, n);
|
|
instance->satur.process(b, b, n << 1);
|
|
instance->srcDown.process(b, y, n << 1);
|
|
#else
|
|
instance->srcUp.process({inputs[0] + i}, {instance->buf}, n);
|
|
instance->satur.process({instance->buf}, {instance->buf}, n << 1);
|
|
instance->srcDown.process({instance->buf}, {outputs[0] + i}, n << 1);
|
|
#endif
|
|
i += n;
|
|
}
|
|
}
|
|
|
|
}
|