FFT factory: reuse flag

sdrbase/dsp/fftengine.h

@@ -16,6 +16,8 @@ public:
 	virtual Complex* in() = 0;
 	virtual Complex* out() = 0;
 
+    virtual void setReuse(bool reuse) = 0;
+
 	static FFTEngine* create(const QString& fftWisdomFileName);
 };
 

sdrbase/dsp/fftfactory.cpp

@@ -53,6 +53,7 @@ void FFTFactory::preallocate(
             {
                 fftEngines.push_back(AllocatedEngine());
                 fftEngines.back().m_engine = FFTEngine::create(m_fftwWisdomFileName);
+                fftEngines.back().m_engine->setReuse(false);
                 fftEngines.back().m_engine->configure(fftSize, false);
             }
 
@@ -60,6 +61,7 @@ void FFTFactory::preallocate(
             {
                 invFFTEngines.push_back(AllocatedEngine());
                 invFFTEngines.back().m_engine = FFTEngine::create(m_fftwWisdomFileName);
+                fftEngines.back().m_engine->setReuse(false);
                 invFFTEngines.back().m_engine->configure(fftSize, true);
             }
         }
@@ -79,6 +81,7 @@ unsigned int FFTFactory::getEngine(unsigned int fftSize, bool inverse, FFTEngine
         engines.push_back(AllocatedEngine());
         engines.back().m_inUse = true;
         engines.back().m_engine = FFTEngine::create(m_fftwWisdomFileName);
+        engines.back().m_engine->setReuse(false);
         engines.back().m_engine->configure(fftSize, true);
         *engine = engines.back().m_engine;
         return 0;
@@ -108,6 +111,7 @@ unsigned int FFTFactory::getEngine(unsigned int fftSize, bool inverse, FFTEngine
             engines.push_back(AllocatedEngine());
             engines.back().m_inUse = true;
             engines.back().m_engine = FFTEngine::create(m_fftwWisdomFileName);
+            engines.back().m_engine->setReuse(false);
             engines.back().m_engine->configure(fftSize, true);
             *engine = engines.back().m_engine;
             return engines.size() - 1;

sdrbase/dsp/fftwengine.cpp

@@ -4,7 +4,12 @@
 FFTWEngine::FFTWEngine(const QString& fftWisdomFileName) :
     m_fftWisdomFileName(fftWisdomFileName),
 	m_plans(),
+<<<<<<< ours
 	m_currentPlan(NULL)
+=======
+	m_currentPlan(nullptr),
+    m_reuse(true)
+>>>>>>> theirs
 {
 }
 
@@ -15,12 +20,26 @@ FFTWEngine::~FFTWEngine()
 
 void FFTWEngine::configure(int n, bool inverse)
 {
+<<<<<<< ours
 	for(Plans::const_iterator it = m_plans.begin(); it != m_plans.end(); ++it) {
 		if(((*it)->n == n) && ((*it)->inverse == inverse)) {
 			m_currentPlan = *it;
 			return;
 		}
 	}
+=======
+    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;
+            }
+        }
+    }
+>>>>>>> theirs
 
 	m_currentPlan = new Plan;
 	m_currentPlan->n = n;

sdrbase/dsp/fftwengine.h

@@ -12,13 +12,15 @@
 class SDRBASE_API FFTWEngine : public FFTEngine {
 public:
 	FFTWEngine(const QString& fftWisdomFileName);
-	~FFTWEngine();
+	virtual ~FFTWEngine();
 
-	void configure(int n, bool inverse);
-	void transform();
+	virtual void configure(int n, bool inverse);
+	virtual void transform();
 
-	Complex* in();
-	Complex* out();
+	virtual Complex* in();
+	virtual Complex* out();
+
+    virtual void setReuse(bool reuse) { m_reuse = reuse; }
 
 protected:
 	static QMutex m_globalPlanMutex;
@@ -34,6 +36,7 @@ protected:
 	typedef std::list<Plan*> Plans;
 	Plans m_plans;
 	Plan* m_currentPlan;
+    bool m_reuse;
 
 	void freeAll();
 };

sdrbase/dsp/kissengine.cpp

@@ -23,3 +23,8 @@ Complex* KissEngine::out()
 {
 	return &m_out[0];
 }
+
+void KissEngine::setReuse(bool reuse)
+{
+    (void) reuse;
+}

sdrbase/dsp/kissengine.h

@@ -7,11 +7,13 @@
 
 class SDRBASE_API KissEngine : public FFTEngine {
 public:
-	void configure(int n, bool inverse);
-	void transform();
+	virtual void configure(int n, bool inverse);
+	virtual void transform();
 
-	Complex* in();
-	Complex* out();
+	virtual Complex* in();
+	virtual Complex* out();
+
+    virtual void setReuse(bool reuse);
 
 protected:
 	typedef kissfft<Real, Complex> KissFFT;