FT8 support: fixed FFT moving plans in a simgleton with global mutex

2026-06-05 07:24:44 -04:00 · 2023-01-25 09:11:18 +01:00
parent e23db7e65c
commit aaa244974b
9 changed files with 296 additions and 161 deletions
@@ -0,0 +1,64 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2023 Edouard Griffiths, F4EXB.                                  //
+//                                                                               //
+// This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon          //
+// written by Robert Morris, AB1HL                                               //
+// reformatted and adapted to Qt and SDRangel context                            //
+//                                                                               //
+// 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 <QMutexLocker>
+
+#include "ft8plan.h"
+#include "ft8plans.h"
+
+namespace FT8
+{
+
+FT8Plans* FT8Plans::m_instance= nullptr;
+QMutex FT8Plans::m_globalPlanMutex;
+
+FT8Plans::FT8Plans()
+{}
+
+FT8Plans *FT8Plans::GetInstance()
+{
+    if (!m_instance) {
+        m_instance = new FT8Plans();
+    }
+
+    return m_instance;
+}
+
+Plan *FT8Plans::getPlan(int n)
+{
+    QMutexLocker mlock(&m_globalPlanMutex);
+
+    for (auto& plan : m_plans)
+    {
+        if ((plan->n_ == n) && (plan->type_ == Plan::M_FFTW_TYPE)) {
+            return plan;
+        }
+    }
+
+    fftwf_set_timelimit(5);
+
+    Plan *p = new Plan(n);
+    m_plans.push_back(p);
+
+    return p;
+}
+
+}