feat: integrate RTL-TCP server support

2025-11-01 22:39:52 +08:00
parent 356738ac10
commit 5aa19ada14
379 changed files with 109413 additions and 47 deletions
--- a/android/app/src/main/cpp/dsp/fftwengine.cpp
+++ b/android/app/src/main/cpp/dsp/fftwengine.cpp
@@ -0,0 +1,127 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
+// written by Christian Daniel                                                   //
+// Copyright (C) 2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com>               //
+// Copyright (C) 2023 Jon Beniston, M7RCE <jon@beniston.com>                     //
+//                                                                               //
+// 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 as version 3 of the License, 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 V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include <QDebug>
+#include <QElapsedTimer>
+
+#include "dsp/fftwengine.h"
+#include "util/profiler.h"
+
+FFTWEngine::FFTWEngine(const QString& fftWisdomFileName) :
+    m_fftWisdomFileName(fftWisdomFileName),
+	m_plans(),
+	m_currentPlan(nullptr),
+    m_reuse(true)
+{
+}
+
+FFTWEngine::~FFTWEngine()
+{
+	freeAll();
+}
+
+const QString FFTWEngine::m_name = "FFTW";
+
+QString FFTWEngine::getName() const
+{
+    return m_name;
+}
+
+void FFTWEngine::configure(int n, bool inverse)
+{
+    if (m_reuse)
+    {
+        for (Plans::const_iterator it = m_plans.begin(); it != m_plans.end(); ++it)
+        {
+            if (((*it)->n == n) && ((*it)->inverse == inverse))
+            {
+                m_currentPlan = *it;
+                return;
+            }
+        }
+    }
+
+	m_currentPlan = new Plan;
+	m_currentPlan->n = n;
+	m_currentPlan->inverse = inverse;
+	m_currentPlan->in = (fftwf_complex*)fftwf_malloc(sizeof(fftwf_complex) * n);
+	m_currentPlan->out = (fftwf_complex*)fftwf_malloc(sizeof(fftwf_complex) * n);
+	QElapsedTimer t;
+	t.start();
+    m_globalPlanMutex.lock();
+
+    if (m_fftWisdomFileName.size() > 0)
+    {
+        int rc = fftwf_import_wisdom_from_filename(m_fftWisdomFileName.toStdString().c_str());
+
+        if (rc == 0) { // that's an error (undocumented)
+            qInfo("FFTWEngine::configure: importing from FFTW wisdom file: '%s' failed", qPrintable(m_fftWisdomFileName));
+        } else {
+            qDebug("FFTWEngine::configure: successfully imported from FFTW wisdom file: '%s'", qPrintable(m_fftWisdomFileName));
+        }
+    }
+    else
+    {
+        qDebug("FFTWEngine::configure: no FFTW wisdom file");
+    }
+
+	m_currentPlan->plan = fftwf_plan_dft_1d(n, m_currentPlan->in, m_currentPlan->out, inverse ? FFTW_BACKWARD : FFTW_FORWARD, FFTW_PATIENT);
+    m_globalPlanMutex.unlock();
+
+    qDebug("FFT: creating FFTW plan (n=%d,%s) took %lld ms", n, inverse ? "inverse" : "forward", t.elapsed());
+	m_plans.push_back(m_currentPlan);
+}
+
+void FFTWEngine::transform()
+{
+    PROFILER_START()
+
+	if(m_currentPlan != NULL)
+		fftwf_execute(m_currentPlan->plan);
+
+    PROFILER_STOP(QString("%1 %2").arg(getName()).arg(m_currentPlan->n))
+}
+
+Complex* FFTWEngine::in()
+{
+	if(m_currentPlan != NULL)
+		return reinterpret_cast<Complex*>(m_currentPlan->in);
+	else return NULL;
+}
+
+Complex* FFTWEngine::out()
+{
+	if(m_currentPlan != NULL)
+		return reinterpret_cast<Complex*>(m_currentPlan->out);
+	else return NULL;
+}
+
+QMutex FFTWEngine::m_globalPlanMutex;
+
+void FFTWEngine::freeAll()
+{
+	for(Plans::iterator it = m_plans.begin(); it != m_plans.end(); ++it) {
+		fftwf_destroy_plan((*it)->plan);
+		fftwf_free((*it)->in);
+		fftwf_free((*it)->out);
+		delete *it;
+	}
+	m_plans.clear();
+}