mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-14 18:24:34 -05:00
033c4e9a5b
* Updated style * Updated files * fixed new line * Updated spacing * File fix WIP * Updated to clang 13 * updated comment style * Removed old comment code
107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
/*
|
|
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
|
|
* Copyright (C) 2017 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 "tone_gen.hpp"
|
|
#include "sine_table_int8.hpp"
|
|
|
|
/*
|
|
int32_t ToneGen::tone_sine() {
|
|
// TODO : Added for Sonde App. We keep it by now , but it needs to be reviewed in Sonde
|
|
// Hoepfully we can manage without it , same as previous fw 1.3.1
|
|
int32_t tone_sample = sine_table_i8[tone_phase_] * 0x1000000;
|
|
tone_phase_ += delta_;
|
|
|
|
return tone_sample;
|
|
}
|
|
*/
|
|
|
|
int32_t ToneGen::tone_square() {
|
|
// TODO : Added for Sonde App. We keep it by now , but it needs to be reviewed in Sonde
|
|
int32_t tone_sample = 0;
|
|
|
|
if (tone_phase_ < (UINT32_MAX / 2)) {
|
|
tone_sample = INT32_MAX;
|
|
} else {
|
|
tone_sample = INT32_MIN;
|
|
}
|
|
|
|
tone_phase_ += delta_;
|
|
|
|
return tone_sample;
|
|
}
|
|
|
|
/*
|
|
void ToneGen::configure(const uint32_t delta, const float tone_mix_weight) {
|
|
// Confirmed ! It is not working well in the fw 1.4.4 Mic App , CTCSS generation, (but added for Sonde App)
|
|
// I Think it should be deleted or modified but not use it as it is in Mic App .
|
|
|
|
delta_ = (uint8_t) ((delta & 0xFF000000U) >> 24);
|
|
delta_ = delta;
|
|
tone_mix_weight_ = tone_mix_weight;
|
|
input_mix_weight_ = 1.0 - tone_mix_weight;
|
|
current_tone_type_ = sine;
|
|
}
|
|
*/
|
|
|
|
void ToneGen::configure(const uint32_t freq, const float tone_mix_weight, const tone_type tone_type, const uint32_t sample_rate) {
|
|
// TODO : Added for Sonde App. We keep it by now to avoid compile errors, but it needs to be reviewed in Sonde
|
|
delta_ = (uint8_t)((freq * sizeof(sine_table_i8)) / sample_rate);
|
|
tone_mix_weight_ = tone_mix_weight;
|
|
input_mix_weight_ = 1.0 - tone_mix_weight;
|
|
current_tone_type_ = tone_type;
|
|
}
|
|
|
|
// ----Original available core SW code from fw 1.3.1 , Working also well in Mic App CTCSS Gen from fw 1.4.0 onwards
|
|
|
|
// Original direct-look-up synthesis algorithm with Fractional delta phase. It is OK
|
|
// Delta and Accumulator fase are stored in 32 bits (4 bytes), 1st top byte used as Modulo-256 Sine look-up table [index]
|
|
// the lower 3 bytes (24 bits) are used as a Fractional Detla and Accumulator phase, to have very finer Fstep control.
|
|
|
|
void ToneGen::configure(const uint32_t delta, const float tone_mix_weight) {
|
|
delta_ = delta;
|
|
tone_mix_weight_ = tone_mix_weight;
|
|
input_mix_weight_ = 1.0 - tone_mix_weight;
|
|
}
|
|
|
|
int32_t ToneGen::process(const int32_t sample_in) {
|
|
if (!delta_)
|
|
return sample_in;
|
|
|
|
int32_t tone_sample = sine_table_i8[(tone_phase_ & 0xFF000000U) >> 24];
|
|
tone_phase_ += delta_;
|
|
|
|
return (sample_in * input_mix_weight_) + (tone_sample * tone_mix_weight_);
|
|
}
|
|
// -------------------------------------------------------------
|
|
|
|
int32_t ToneGen::process_square(const int32_t sample_in) {
|
|
// TODO : Added for Sonde App. We keep it by now , but it needs to be reviewed in Sonde
|
|
if (!delta_)
|
|
return sample_in;
|
|
|
|
int32_t tone_sample = 0;
|
|
|
|
tone_sample = tone_square();
|
|
|
|
return (sample_in * input_mix_weight_) + (tone_sample * tone_mix_weight_);
|
|
}
|