mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-15 04:28:10 +00:00
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/*
|
|
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
|
|
* Copyright (C) 2016 Furrtek
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program 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; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program 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 this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include "proc_audiotx.hpp"
|
|
#include "portapack_shared_memory.hpp"
|
|
#include "sine_table.hpp"
|
|
#include "event_m4.hpp"
|
|
|
|
#include <cstdint>
|
|
|
|
void AudioTXProcessor::execute(const buffer_c8_t& buffer){
|
|
|
|
for (size_t i = 0; i<buffer.count; i++) {
|
|
sample = (sine_table_f32[(aphase & 0x03FF0000)>>18]*127); //(int8_t)lfsr(sample + i);
|
|
|
|
if (bc & 0x40)
|
|
aphase += 60000;
|
|
else
|
|
aphase += 90000;
|
|
|
|
//FM
|
|
frq = sample * 1000;
|
|
|
|
phase = (phase + frq);
|
|
sphase = phase + (256<<16);
|
|
|
|
re = (sine_table_f32[(sphase & 0x03FF0000)>>18]*127);
|
|
im = (sine_table_f32[(phase & 0x03FF0000)>>18]*127);
|
|
|
|
buffer.p[i] = {(int8_t)re,(int8_t)im};
|
|
}
|
|
|
|
bc++;
|
|
}
|
|
|
|
int main() {
|
|
EventDispatcher event_dispatcher { std::make_unique<AudioTXProcessor>() };
|
|
event_dispatcher.run();
|
|
return 0;
|
|
}
|