mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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497ca3f934
* WIP freqman changes/memory perf/stash * Split ui tone_key function out for testing. * Add more tests and fix bugs. * Use default max_entries in recond * Set limit back to 90 for now
264 lines
7.9 KiB
C++
264 lines
7.9 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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* Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
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* Copyright (C) 2023 Kyle Reed
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "convert.hpp"
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#include "file.hpp"
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#include "file_reader.hpp"
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#include "freqman_db.hpp"
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#include "string_format.hpp"
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#include "tone_key.hpp"
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#include <array>
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#include <cctype>
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#include <string_view>
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#include <vector>
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namespace fs = std::filesystem;
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using option_t = std::pair<std::string, int32_t>;
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using options_t = std::vector<option_t>;
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options_t freqman_modulations = {
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{"AM", 0},
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{"NFM", 1},
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{"WFM", 2},
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{"SPEC", 3},
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};
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options_t freqman_bandwidths[4] = {
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{
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// AM
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{"DSB 9k", 0},
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{"DSB 6k", 1},
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{"USB+3k", 2},
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{"LSB-3k", 3},
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{"CW", 4},
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},
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{
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// NFM
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{"8k5", 0},
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{"11k", 1},
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{"16k", 2},
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},
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{
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// WFM
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{"40k", 2},
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{"180k", 1},
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{"200k", 0},
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},
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{
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// SPEC -- TODO: these should be indexes.
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{"8k5", 8500},
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{"11k", 11000},
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{"16k", 16000},
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{"25k", 25000},
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{"50k", 50000},
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{"100k", 100000},
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{"250k", 250000},
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{"500k", 500000}, /* Previous Limit bandwith Option with perfect micro SD write .C16 format operaton.*/
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{"600k", 600000}, /* That extended option is still possible to record with FW version Mayhem v1.41 (< 2,5MB/sec) */
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{"650k", 650000},
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{"750k", 750000}, /* From this BW onwards, the LCD is ok, but the recorded file is decimated, (not real file size) */
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{"1100k", 1100000},
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{"1750k", 1750000},
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{"2000k", 2000000},
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{"2500k", 2500000},
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{"2750k", 2750000}, // That is our max Capture option, to keep using later / 8 decimation (22Mhz sampling ADC)
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},
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};
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options_t freqman_steps = {
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{"0.1kHz ", 100},
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{"1kHz ", 1000},
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{"5kHz (SA AM)", 5000},
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{"6.25kHz(NFM)", 6250},
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{"8.33kHz(AIR)", 8330},
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{"9kHz (EU AM)", 9000},
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{"10kHz(US AM)", 10000},
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{"12.5kHz(NFM)", 12500},
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{"15kHz (HFM)", 15000},
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{"25kHz (N1)", 25000},
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{"30kHz (OIRT)", 30000},
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{"50kHz (FM1)", 50000},
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{"100kHz (FM2)", 100000},
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{"250kHz (N2)", 250000},
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{"500kHz (WFM)", 500000},
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{"1MHz ", 1000000},
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};
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options_t freqman_steps_short = {
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{"0.1kHz", 100},
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{"1kHz", 1000},
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{"5kHz", 5000},
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{"6.25kHz", 6250},
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{"8.33kHz", 8330},
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{"9kHz", 9000},
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{"10kHz", 10000},
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{"12.5kHz", 12500},
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{"15kHz", 15000},
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{"25kHz", 25000},
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{"30kHz", 30000},
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{"50kHz", 50000},
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{"100kHz", 100000},
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{"250kHz", 250000},
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{"500kHz", 500000},
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{"1MHz", 1000000},
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};
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uint8_t find_by_name(const options_t& options, std::string_view name) {
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for (auto ix = 0u; ix < options.size(); ++ix)
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if (options[ix].first == name)
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return ix;
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return freqman_invalid_index;
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}
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/* Impl for next round of changes.
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*template <typename T, size_t N>
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*const T* find_by_name(const std::array<T, N>& info, std::string_view name) {
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* for (const auto& it : info) {
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* if (it.name == name)
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* return ⁢
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* }
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*
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* return nullptr;
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*}
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*/
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// TODO: How much format validation should this do?
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// It's very permissive right now, but entries can be invalid.
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// TODO: parse_int seems to hang on invalid input.
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bool parse_freqman_entry(std::string_view str, freqman_entry& entry) {
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if (str.empty() || str[0] == '#')
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return false;
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auto cols = split_string(str, ',');
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entry = freqman_entry{};
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for (auto col : cols) {
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if (col.empty())
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continue;
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auto pair = split_string(col, '=');
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if (pair.size() != 2)
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continue;
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auto key = pair[0];
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auto value = pair[1];
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if (key == "a") {
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entry.type = freqman_type::Range;
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parse_int(value, entry.frequency_a);
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} else if (key == "b") {
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parse_int(value, entry.frequency_b);
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} else if (key == "bw") {
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// NB: Requires modulation to be set first
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if (entry.modulation < std::size(freqman_bandwidths)) {
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entry.bandwidth = find_by_name(freqman_bandwidths[entry.modulation], value);
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}
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} else if (key == "c") {
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// Split into whole and fractional parts.
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auto parts = split_string(value, '.');
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int32_t tone_freq = 0;
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int32_t whole_part = 0;
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parse_int(parts[0], whole_part);
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// Tones are stored as frequency / 100 for some reason.
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// E.g. 14572 would be 145.7 (NB: 1s place is dropped).
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// TODO: Might be easier to just store the codes?
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// Multiply the whole part by 100 to get the tone frequency.
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tone_freq = whole_part * 100;
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// Add the fractional part, if present.
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if (parts.size() > 1) {
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auto c = parts[1].front();
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auto digit = std::isdigit(c) ? c - '0' : 0;
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tone_freq += digit * 10;
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}
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entry.tone = static_cast<freqman_index_t>(
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tonekey::tone_key_index_by_value(tone_freq));
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} else if (key == "d") {
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entry.description = trim(value);
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} else if (key == "f") {
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entry.type = freqman_type::Single;
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parse_int(value, entry.frequency_a);
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} else if (key == "m") {
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entry.modulation = find_by_name(freqman_modulations, value);
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} else if (key == "r") {
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entry.type = freqman_type::HamRadio;
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parse_int(value, entry.frequency_a);
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} else if (key == "s") {
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entry.step = find_by_name(freqman_steps_short, value);
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} else if (key == "t") {
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parse_int(value, entry.frequency_b);
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}
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}
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return true;
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}
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bool parse_freqman_file(const fs::path& path, freqman_db& db, freqman_load_options options) {
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File f;
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auto error = f.open(path);
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if (error)
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return false;
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auto reader = FileLineReader(f);
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auto line_count = count_lines(reader);
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// Attempt to avoid a re-alloc if possible.
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db.clear();
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db.reserve(line_count);
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for (const auto& line : reader) {
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freqman_entry entry{};
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if (!parse_freqman_entry(line, entry))
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continue;
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// Filter by entry type.
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if ((entry.type == freqman_type::Single && !options.load_freqs) ||
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(entry.type == freqman_type::Range && !options.load_ranges) ||
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(entry.type == freqman_type::HamRadio && !options.load_hamradios)) {
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continue;
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}
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// Use previous entry's mod/band if current's aren't set.
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if (!db.empty()) {
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if (is_invalid(entry.modulation))
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entry.modulation = db.back()->modulation;
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if (is_invalid(entry.bandwidth))
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entry.bandwidth = db.back()->bandwidth;
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}
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// Move the entry onto the heap and push.
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db.push_back(std::make_unique<freqman_entry>(std::move(entry)));
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// Limit to max_entries when specified.
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if (options.max_entries > 0 && db.size() >= options.max_entries)
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break;
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}
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db.shrink_to_fit();
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return true;
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} |