mirror of
https://github.com/f4exb/sdrangel.git
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366 lines
10 KiB
C++
366 lines
10 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2024 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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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 as version 3 of the License, or //
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// (at your option) 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 V3 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. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <fstream>
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#include <regex>
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#include <random>
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#include <QTextStream>
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#include "mainbench.h"
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#ifndef HAS_FT8
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void MainBench::testFT8(const QString& wavFile, const QString& argsStr)
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{
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(void) wavFile;
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(void) argsStr;
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qWarning("MainBench::testFT8: this version has no FT8 support");
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}
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#else
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#include "ft8/ft8.h"
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#include "ft8/packing.h"
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class TestFT8Protocols
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{
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public:
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static void testMsg1(const QStringList& argElements, bool runLDPC = false);
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static void testMsg00(const QStringList& argElements, bool runLDPC = false);
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static void testOnesZeroes(const QStringList& argElements);
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static void testSoftDecode(const QStringList& argElements);
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private:
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static bool testLDPC(int a77[]);
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static bool compareBits(int a[], int r[], int nbBits = 174);
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static void debugIntArray(int a[], int length);
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};
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void MainBench::testFT8Protocols(const QString& argsStr)
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{
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QStringList argElements = argsStr.split(','); // comma separated list of arguments
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if (argElements.size() == 0)
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{
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qWarning("MainBench::testFT8Protocols: no arguments");
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return;
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}
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QString& testType = argElements[0];
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if (testType == "msg1") {
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TestFT8Protocols::testMsg1(argElements); // type 1 message test
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} else if (testType == "msg00") {
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TestFT8Protocols::testMsg00(argElements); // type 0.0 message test
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} else if (testType == "msg1L") {
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TestFT8Protocols::testMsg1(argElements, true); // type 1 message test with LDPC encoding/decoding test
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} else if (testType == "msg00L") {
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TestFT8Protocols::testMsg00(argElements, true); // type 0.0 message test with LDPC encoding/decoding test
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} else if (testType == "zeroones") {
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TestFT8Protocols::testOnesZeroes(argElements);
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} else if (testType == "softdec") {
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TestFT8Protocols::testSoftDecode(argElements);
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} else {
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qWarning("MainBench::testFT8Protocols: unrecognized test type");
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}
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}
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void TestFT8Protocols::testMsg1(const QStringList& argElements, bool runLDPC)
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{
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if (argElements.size() < 4)
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{
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qWarning("TestFT8Protocols::testMsg1: missing callsigns and locator/report in argument");
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return;
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}
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int c28_1, c28_2, g15;
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if (!FT8::Packing::packcall_std(c28_1, argElements[1].toStdString()))
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{
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qWarning("TestFT8Protocols::testMsg1: callsign %s is not a standard callsign", qPrintable(argElements[1]));
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return;
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}
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if (!FT8::Packing::packcall_std(c28_2, argElements[2].toStdString()))
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{
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qWarning("TestFT8Protocols::testMsg1: callsign %s is not a standard callsign", qPrintable(argElements[2]));
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return;
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}
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std::string locstr;
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int reply;
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if (argElements[3].startsWith("R+") || argElements[3].startsWith("R-"))
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{
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reply = 1;
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locstr = argElements[3].mid(1).toStdString();
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}
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else
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{
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reply = 0;
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locstr = argElements[3].toStdString();
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}
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if (!FT8::Packing::packgrid(g15, locstr))
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{
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qWarning("TestFT8Protocols::testMsg1: locator or report %s is not valid", locstr.c_str());
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return;
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}
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qDebug("TestFT8Protocols::testMsg1: c28_1: %d c28_2: %d g15: %d", c28_1, c28_2, g15);
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int a77[77];
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std::fill(a77, a77 + 77, 0);
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FT8::Packing::pack1(a77, c28_1, c28_2, g15, reply);
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FT8::Packing packing;
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std::string call1, call2, loc;
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std::string msg = packing.unpack_1(a77, call1, call2, loc);
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qInfo("TestFT8Protocols::testMsg1: msg: %s, call1: %s, call2: %s, loc: %s", msg.c_str(), call1.c_str(), call2.c_str(), loc.c_str());
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if (runLDPC)
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{
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if (testLDPC(a77)) {
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qInfo("TestFT8Protocols::testMsg1: LDPC test succeeded");
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} else {
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qWarning("TestFT8Protocols::testMsg1: LDPC test failed");
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}
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}
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}
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void TestFT8Protocols::testMsg00(const QStringList& argElements, bool runLDPC)
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{
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if (argElements.size() < 2)
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{
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qWarning("TestFT8Protocols::testMsg00: missing free text in argument");
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return;
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}
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int a77[77];
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std::fill(a77, a77 + 77, 0);
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if (!FT8::Packing::packfree(a77, argElements[1].toStdString()))
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{
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qWarning("TestFT8Protocols::testMsg00: message %s is not valid", qPrintable(argElements[1]));
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return;
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}
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std::string call1, call2, loc;
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std::string msg = FT8::Packing::unpack_0_0(a77, call1, call2, loc);
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qInfo("TestFT8Protocols::testMsg00: msg: %s, call1: %s", msg.c_str(), call1.c_str());
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if (runLDPC)
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{
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if (testLDPC(a77)) {
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qInfo("TestFT8Protocols::testMsg00: LDPC test succeeded");
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} else {
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qWarning("TestFT8Protocols::testMsg00: LDPC test failed");
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}
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}
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}
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bool TestFT8Protocols::testLDPC(int a77[])
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{
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int a174[174], r174[174];
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FT8::FT8::encode(a174, a77);
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FT8::FT8Params ft8Params;
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float ll174[174];
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FT8::FT8Params params;
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std::string comments;
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std::transform(
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a174,
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a174+174,
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ll174,
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[](const int& s) -> float { return s == 1 ? -1.0 : 1.0; }
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);
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if (FT8::FT8::decode(ll174, r174, params, 0, comments) == 0)
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{
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qInfo("TestFT8Protocols::testLDPC(: LDPC or CRC check failed");
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return false;
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}
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else
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{
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return compareBits(a174, r174);
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}
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}
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bool TestFT8Protocols::compareBits(int a[], int r[], int nbBits)
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{
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for (int i=0; i < nbBits; i++)
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{
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if (a[i] != r[i])
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{
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qDebug("TestFT8Protocols::compareBits: failed at index %d: %d != %d", i, a[i], r[i]);
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return false;
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}
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}
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return true;
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}
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void TestFT8Protocols::debugIntArray(int a[], int length)
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{
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QString s;
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QTextStream os(&s);
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for (int i=0; i < length; i++) {
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os << a[i] << " ";
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}
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qDebug("TestFT8Protocols::debugIntArray: %s", qPrintable(s));
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}
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void TestFT8Protocols::testOnesZeroes(const QStringList& argElements)
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{
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if (argElements.size() < 3)
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{
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qWarning("TestFT8Protocols::testOnesZeroes: not enough elements");
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return;
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}
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int nbBits, bitIndex;
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bool intOK;
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nbBits = argElements[1].toInt(&intOK);
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if (!intOK)
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{
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qWarning("TestFT8Protocols::testOnesZeroes: first argument is not numeric: %s", qPrintable(argElements[1]));
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return;
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}
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bitIndex = argElements[2].toInt(&intOK);
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if (!intOK)
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{
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qWarning("TestFT8Protocols::testOnesZeroes: second argument is not numeric: %s", qPrintable(argElements[2]));
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return;
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}
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if (nbBits < 2)
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{
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qWarning("TestFT8Protocols::testOnesZeroes: nbBits too small: %d", nbBits);
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return;
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}
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bitIndex = bitIndex > nbBits - 1 ? nbBits - 1 : bitIndex;
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int *ones = new int[1<<nbBits];
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int *zeroes = new int[1<<nbBits];
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FT8::FT8::set_ones_zeroes(ones, zeroes, nbBits, bitIndex);
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QString s;
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QTextStream os(&s);
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for (int i = 0; i < (1<<(nbBits-1)); i++) {
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os << i << ": " << zeroes[i] << ", " << ones[i] << "\n";
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}
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qInfo("TestFT8Protocols::testOnesZeroes: (%d,%d) index: zeroes, ones:\n%s", nbBits, bitIndex, qPrintable(s));
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}
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void TestFT8Protocols::testSoftDecode(const QStringList& argElements)
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{
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if (argElements.size() < 3)
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{
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qWarning("TestFT8Protocols::testSoftDecode: not enough elements");
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return;
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}
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bool intOK;
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int nbBits = argElements[1].toInt(&intOK);
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if (!intOK)
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{
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qWarning("TestFT8Protocols::testSoftDecode: first argument is not numeric: %s", qPrintable(argElements[1]));
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return;
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}
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if ((nbBits < 2) || (nbBits > 12))
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{
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qWarning("TestFT8Protocols::testSoftDecode: bits peer symbols invalid: %d", nbBits);
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return;
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}
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int symbolSize = 1<<nbBits;
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std::vector<float> magSymbols(symbolSize);
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std::vector<std::vector<float>> mags;
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std::random_device rd;
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std::mt19937 gen(rd());
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std::uniform_real_distribution<float> dist(0.0, 0.01);
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for (int i = 2; i < argElements.size(); i++)
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{
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int symbol = argElements[i].toInt(&intOK);
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if (!intOK)
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{
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qWarning("TestFT8Protocols::testSoftDecode: symbol is not numeric: %s", qPrintable(argElements[i]));
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return;
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}
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for (auto& m : magSymbols) {
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m = 0.01 + dist(gen);
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}
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symbol = symbol % symbolSize;
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symbol = symbol ^(symbol >> 1); // Gray code
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magSymbols[symbol] += 0.015;
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mags.push_back(magSymbols);
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}
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QString s;
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QTextStream os(&s);
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qDebug("TestFT8Protocols::testSoftDecode: mags:");
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for (const auto& magrow : mags)
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{
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for (const auto& mag : magrow) {
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os << mag << " ";
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}
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qDebug("TestFT8Protocols::testSoftDecode: %s", qPrintable(s));
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s.clear();
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}
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float *lls = new float[mags.size()*nbBits];
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std::fill(lls, lls+mags.size()*nbBits, 0.0);
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FT8::FT8Params params;
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FT8::FT8::soft_decode_mags(params, mags, nbBits, lls);
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for (unsigned int si = 0; si < mags.size(); si++)
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{
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for (int biti = 0; biti < nbBits; biti++) {
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os << " " << lls[nbBits*si + biti];
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}
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os << " ";
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}
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// for (unsigned int i = 0; i < mags.size()*nbBits; i++) {
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// os << " " << lls[i];
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// }
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qInfo("TestFT8Protocols::testSoftDecode: lls: %s", qPrintable(s));
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delete[] lls;
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}
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#endif
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