initial ScopeVisualProcessor, ReBuffer template

CMakeLists.txt

@@ -258,6 +258,7 @@ SET (cubicsdr_sources
 	src/visual/WaterfallCanvas.cpp
 	src/visual/WaterfallContext.cpp
 	src/process/VisualProcessor.cpp
+	src/process/ScopeVisualProcessor.cpp
 	src/process/SpectrumVisualProcessor.cpp
 	src/process/WaterfallVisualProcessor.cpp
 	src/ui/GLPanel.cpp
@@ -308,6 +309,7 @@ SET (cubicsdr_headers
 	src/visual/WaterfallCanvas.h
 	src/visual/WaterfallContext.h
 	src/process/VisualProcessor.h
+	src/process/ScopeVisualProcessor.h
 	src/process/SpectrumVisualProcessor.h
 	src/process/WaterfallVisualProcessor.h
 	src/ui/GLPanel.h

src/CubicSDRDefs.h

@@ -35,6 +35,7 @@ const char filePathSeparator =
 
 #include <mutex>
 #include <atomic>
+#include <deque>
 
 class ReferenceCounter {
 public:
@@ -54,3 +55,33 @@ public:
 protected:
     std::atomic_int refCount;
 };
+
+template<class BufferType = ReferenceCounter>
+class ReBuffer {
+    
+public:
+    BufferType *getBuffer() {
+        BufferType* buf = NULL;
+        for (outputBuffersI = outputBuffers.begin(); outputBuffersI != outputBuffers.end(); outputBuffersI++) {
+            if ((*outputBuffersI)->getRefCount() <= 0) {
+                return (*outputBuffersI);
+            }
+        }
+        
+        buf = new BufferType();
+        outputBuffers.push_back(buf);
+        
+        return buf;
+    }
+    
+    void purge() {
+        while (!outputBuffers.empty()) {
+            BufferType *ref = outputBuffers.front();
+            outputBuffers.pop_front();
+            delete ref;
+        }
+    }
+private:
+    std::deque<BufferType*> outputBuffers;
+    typename std::deque<BufferType*>::iterator outputBuffersI;
+};

src/demod/DemodulatorThread.cpp

@@ -307,17 +307,7 @@ void DemodulatorThread::threadMain() {
         if (audioOutputQueue != NULL) {
             if (!squelchEnabled || (signalLevel >= squelchLevel)) {
 
-                for (outputBuffersI = outputBuffers.begin(); outputBuffersI != outputBuffers.end(); outputBuffersI++) {
-                    if ((*outputBuffersI)->getRefCount() <= 0) {
-                        ati = (*outputBuffersI);
-                        break;
-                    }
-                }
-
-                if (ati == NULL) {
-                    ati = new AudioThreadInput;
-                    outputBuffers.push_back(ati);
-                }
+                ati = outputBuffers.getBuffer();
 
                 ati->sampleRate = audioSampleRate;
                 ati->setRefCount(1);
@@ -491,11 +481,7 @@ void DemodulatorThread::threadMain() {
     nco_crcf_destroy(stereoPilot);
     resamp2_cccf_destroy(ssbFilt);
 
-    while (!outputBuffers.empty()) {
-        AudioThreadInput *audioDataDel = outputBuffers.front();
-        outputBuffers.pop_front();
-        delete audioDataDel;
-    }
+    outputBuffers.purge();
 
     if (audioVisOutputQueue && !audioVisOutputQueue->empty()) {
         AudioThreadInput *dummy_vis;

src/demod/DemodulatorThread.h

@@ -48,8 +48,7 @@ public:
 #endif
 
 protected:
-    std::deque<AudioThreadInput *> outputBuffers;
-    std::deque<AudioThreadInput *>::iterator outputBuffersI;
+    ReBuffer<AudioThreadInput> outputBuffers;
 
     std::vector<liquid_float_complex> agcData;
     std::vector<float> agcAMData;

src/process/ScopeVisualProcessor.cpp

@@ -0,0 +1 @@
+#include "ScopeVisualProcessor.h"

src/process/ScopeVisualProcessor.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include "VisualProcessor.h"
+#include "AudioThread.h"
+
+class ScopeVisualProcessor : public VisualProcessor {
+protected:
+    std::vector<float> waveform_points;
+
+    virtual void process() {
+        if (!input->empty()) {
+            ReferenceCounter *ati_ref;
+            input->pop(ati_ref);
+            
+            AudioThreadInput *ati = (AudioThreadInput *)ati_ref;
+            if (!ati) {
+                return;
+            }
+            int iMax = ati->data.size();
+            if (!iMax) {
+                ati->decRefCount();
+                return;
+            }
+            if (waveform_points.size() != iMax * 2) {
+                waveform_points.resize(iMax * 2);
+            }
+            
+            for (int i = 0; i < iMax; i++) {
+                waveform_points[i * 2 + 1] = ati->data[i] * 0.5f;
+                waveform_points[i * 2] = ((double) i / (double) iMax);
+            }
+            
+            // ati->channels
+        }
+/*
+ if (!wxGetApp().getAudioVisualQueue()->empty()) {
+            AudioThreadInput *demodAudioData;
+            wxGetApp().getAudioVisualQueue()->pop(demodAudioData);
+            
+            int iMax = demodAudioData?demodAudioData->data.size():0;
+            
+            if (demodAudioData && iMax) {
+                if (waveform_points.size() != iMax * 2) {
+                    waveform_points.resize(iMax * 2);
+                }
+                
+                demodAudioData->busy_update.lock();
+                
+                for (int i = 0; i < iMax; i++) {
+                    waveform_points[i * 2 + 1] = demodAudioData->data[i] * 0.5f;
+                    waveform_points[i * 2] = ((double) i / (double) iMax);
+                }
+                
+                demodAudioData->busy_update.unlock();
+                
+                setStereo(demodAudioData->channels == 2);
+            } else {
+                std::cout << "Incoming Demodulator data empty?" << std::endl;
+            }
+        }
+*/
+    }
+};

src/sdr/SDRPostThread.cpp

@@ -94,8 +94,7 @@ void SDRPostThread::threadMain() {
 
     std::cout << "SDR post-processing thread started.." << std::endl;
 
-    std::deque<DemodulatorThreadIQData *> buffers;
-    std::deque<DemodulatorThreadIQData *>::iterator buffers_i;
+    ReBuffer<DemodulatorThreadIQData> buffers;
     std::vector<liquid_float_complex> fpData;
     std::vector<liquid_float_complex> dataOut;
 
@@ -176,19 +175,7 @@ void SDRPostThread::threadMain() {
 
                 if (demodulators.size()) {
 
-                    DemodulatorThreadIQData *demodDataOut = NULL;
-
-                    for (buffers_i = buffers.begin(); buffers_i != buffers.end(); buffers_i++) {
-                        if ((*buffers_i)->getRefCount() <= 0) {
-                            demodDataOut = (*buffers_i);
-                            break;
-                        }
-                    }
-
-                    if (demodDataOut == NULL) {
-                        demodDataOut = new DemodulatorThreadIQData;
-                        buffers.push_back(demodDataOut);
-                    }
+                    DemodulatorThreadIQData *demodDataOut = buffers.getBuffer();
 
 //                    std::lock_guard < std::mutex > lock(demodDataOut->m_mutex);
                     demodDataOut->frequency = data_in->frequency;
@@ -242,12 +229,8 @@ void SDRPostThread::threadMain() {
         data_in->decRefCount();
     }
 
-    while (!buffers.empty()) {
-        DemodulatorThreadIQData *demodDataDel = buffers.front();
-        buffers.pop_front();
-//        std::lock_guard < std::mutex > lock(demodDataDel->m_mutex);
-//        delete demodDataDel;
-    }
+//    buffers.purge();
+    
     if (iqVisualQueue.load() && !iqVisualQueue.load()->empty()) {
         DemodulatorThreadIQData *visualDataDummy;
         iqVisualQueue.load()->pop(visualDataDummy);

src/sdr/SDRThread.cpp

@@ -168,8 +168,7 @@ void SDRThread::threadMain() {
 
     std::cout << "SDR thread started.." << std::endl;
 
-    std::deque<SDRThreadIQData *> buffers;
-    std::deque<SDRThreadIQData *>::iterator buffers_i;
+    ReBuffer<SDRThreadIQData> buffers;
 
     while (!terminated) {
         SDRThreadCommandQueue *cmdQueue = commandQueue.load();
@@ -274,19 +273,7 @@ void SDRThread::threadMain() {
 
         rtlsdr_read_sync(dev, buf, buf_size, &n_read);
 
-        SDRThreadIQData *dataOut = NULL;
-
-        for (buffers_i = buffers.begin(); buffers_i != buffers.end(); buffers_i++) {
-            if ((*buffers_i)->getRefCount() <= 0) {
-                dataOut = (*buffers_i);
-                break;
-            }
-        }
-
-        if (dataOut == NULL) {
-            dataOut = new SDRThreadIQData;
-            buffers.push_back(dataOut);
-        }
+        SDRThreadIQData *dataOut = buffers.getBuffer();
 
 //        std::lock_guard < std::mutex > lock(dataOut->m_mutex);
         dataOut->setRefCount(1);
@@ -311,12 +298,7 @@ void SDRThread::threadMain() {
         }
     }
 
-    while (!buffers.empty()) {
-        SDRThreadIQData *iqDataDel = buffers.front();
-        buffers.pop_front();
-//        std::lock_guard < std::mutex > lock(iqDataDel->m_mutex);
-//        delete iqDataDel;
-    }
+    // buffers.purge();
     
     std::cout << "SDR thread done." << std::endl;
 }